CN111745569B - Manual positioning and clamping device - Google Patents
Manual positioning and clamping device Download PDFInfo
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- CN111745569B CN111745569B CN202010681969.5A CN202010681969A CN111745569B CN 111745569 B CN111745569 B CN 111745569B CN 202010681969 A CN202010681969 A CN 202010681969A CN 111745569 B CN111745569 B CN 111745569B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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Abstract
The invention relates to the field of clamping equipment, and particularly discloses a manual positioning and clamping device which comprises a workbench, a cam handle, a first connecting rod, a second connecting rod, a sliding block, a floating block and clamping jaws. The manual positioning and clamping device provided by the invention is simple in structure, after a workpiece is placed on the workbench, clamping and loosening of the workpiece can be realized by the clamping jaws only by rotating the cam handle to drive the first connecting rod, the second connecting rod, the sliding block and the floating block to act, the clamping mode is simple, the operation is rapid, and the clamping efficiency is improved.
Description
Technical Field
The invention relates to the field of clamping equipment, in particular to a manual positioning and clamping device.
Background
Before the parts are processed, the parts need to be fixed. At present, the part feeding characteristic is generally adopted, the part to be machined is manually clamped on a bench vice or a tool clamp, the clamping process is complex, and the clamping efficiency is low.
Therefore, a manual positioning and clamping device is needed to solve the above technical problems.
Disclosure of Invention
The invention aims to provide a manual positioning and clamping device which can simplify the clamping process and improve the clamping efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme:
a manual positional clamping device, comprising:
the upper surface of the workbench is used for placing a workpiece;
the outer wall of the cam part of the cam handle is abutted against one side of the workbench in the first horizontal direction;
the first connecting rod can move along the first horizontal direction relative to the workbench, one end of the first connecting rod is hinged with the cam handle, and two sides of the other end of the first connecting rod are respectively hinged with a second connecting rod;
the two sliding blocks can move along a second horizontal direction relative to the workbench, the first horizontal direction is vertical to the second horizontal direction, the sliding blocks correspond to the second connecting rods and the floating blocks one by one, one end of each sliding block is hinged with the corresponding second connecting rod, and the other end of each sliding block is hinged with the corresponding floating block;
the two clamping jaws correspond to the floating blocks one by one, the middle parts of the clamping jaws are hinged to the workbench, the first ends of the clamping jaws are hinged to the corresponding floating blocks, and the second ends of the clamping jaws can be close to or far away from each other in the second horizontal direction to clamp or loosen the workpiece.
As a preferred technical solution of the above manual positioning and clamping device, the outer wall of the first connecting rod is provided with a limit boss; the compression spring is arranged, one end of the compression spring is abutted against the inner side wall of the workbench on the side where the cam handle is located, and the other end of the compression spring is abutted against the limiting boss;
or the other end of the extension spring is connected with one end, far away from the cam handle, of the first connecting rod.
As a preferable technical solution of the above manual positioning and clamping device, the device further comprises a positioning column disposed on the upper surface of the worktable, and the positioning column is used for positioning the workpiece.
As a preferable aspect of the above manual positioning and clamping device, the work table includes:
the cover plate is used for placing a workpiece;
the bottom plate is arranged below the cover plate, one of the cover plate and the bottom plate is a box structure with an opening at one side and the opening points to the other, and the cover plate and the bottom plate are connected to form an installation cavity.
As an optimal technical scheme of the above manual positioning and clamping device, a first through hole is formed in one side of the box structure in the first horizontal direction, and one end of the first connecting rod, which is far away from the cam handle, penetrates through the first through hole and extends into the installation cavity.
As an optimal technical scheme of the manual positioning and clamping device, the inner wall of the bottom plate is provided with avoidance grooves corresponding to the floating blocks one to one, so that at least part of the floating blocks can enter the avoidance grooves.
As an optimal technical scheme of the manual positioning and clamping device, the cover plate is provided with through grooves corresponding to the clamping jaws one to one, and the second ends of the clamping jaws extend out of the corresponding through grooves.
As a preferable mode of the above manual positioning and clamping device, a wear plate is provided between the cam portion and the side wall of the table in contact therewith.
As a preferable technical solution of the above manual positioning and clamping device, each of the clamping jaws is in an "E" shape, and includes a first portion, a second portion, a third portion, and a fourth portion connecting the same ends of the first portion, the second portion, and the third portion;
the first portion is hinged with the corresponding floating block, the second portion is hinged with the workbench, and the third portion is used for clamping a workpiece.
As a preferable technical solution of the above manual positioning and clamping device, a first bending groove is disposed at a connection position of the third portion and the second portion, and a second bending groove is disposed on a side of the fourth portion back to the second portion.
The invention has the beneficial effects that: according to the manual positioning and clamping device provided by the invention, the cam handle is rotated to enable the first connecting rod to move along the first horizontal direction and drive the second connecting rod to rotate relative to the first connecting rod and the corresponding sliding block, then the second connecting rod is utilized to push the sliding block to move along the second horizontal direction, the sliding block drives the corresponding floating block to rotate, the corresponding clamping jaws rotate around the hinge shafts of the clamping jaws, so that the second ends of the two clamping jaws are close to or far away from each other, and a workpiece on a cover plate is clamped or loosened.
The manual positioning and clamping device provided by the invention is simple in structure, after a workpiece is placed on the workbench, clamping and loosening of the workpiece can be realized by the clamping jaws only by rotating the cam handle to drive the first connecting rod, the second connecting rod, the sliding block and the floating block to act, the clamping mode is simple, the operation is rapid, and the clamping efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
FIG. 1 is a schematic view of a manually positionable gripping apparatus in an unclamped configuration in accordance with an embodiment of the present invention;
FIG. 2 is a schematic view of a manually positionable clamping assembly (cover not shown) in an unclamped configuration in accordance with an embodiment of the present invention;
FIG. 3 is a top view of a manually positionable gripping apparatus (cover not shown) provided in accordance with an embodiment of the present invention in a gripping state;
FIG. 4 is a side view of a manually positionable clamping assembly (cover plate not shown) provided in accordance with an embodiment of the present invention in a clamped condition;
FIG. 5 is a top view of a manually positionable gripping apparatus (cover not shown) provided in accordance with an embodiment of the present invention in a released condition;
FIG. 6 is a side view of a manually positionable gripping apparatus (cover not shown) provided in accordance with an embodiment of the present invention in a released state;
fig. 7 is a partially enlarged schematic view at a in fig. 2.
In the figure:
1. a work table; 11. a cover plate; 111. a groove is arranged in a penetrating way; 12. a base plate; 121. an avoidance groove; 122. a third lightening hole; 13. a positioning column;
2. a cam handle; 21. a cam portion; 22. a handle portion;
3. a first link; 31. a first lightening hole; 32. a limiting boss;
4. a second link; 41. a second lightening hole;
5. a slider;
6. a slider; 61. a cross beam; 62. erecting a beam;
7. a claw; 71. a second section; 72. a third section; 73. a fourth section; 74. a first bending groove; 75. a second bending groove; 81. a first hinge shaft; 82. a second hinge shaft; 83. a third hinge shaft; 84. a fourth hinge shaft; 85. a fifth hinge shaft; 86. a sixth hinge shaft;
9. a wear plate; 10. compressing the spring.
Detailed Description
In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.
As shown in fig. 1 and fig. 2, the present embodiment provides a manual positioning and clamping device, which includes a workbench 1, a cam handle 2, a first connecting rod 3, two second connecting rods 4, two sliders 5, two sliders 6, and two jaws 7, wherein the upper surface of the workbench 1 is used for placing a workpiece, the workbench 1 includes a cover plate 11 and a bottom plate 12, the cover plate 11 is used for placing a workpiece, the bottom plate 12 is disposed below the cover plate 11, the cover plate 11 is a box structure with an opening at one side and an opening pointing to the bottom plate 12, and the cover plate 11 and the bottom plate 12 are connected to form an installation cavity. Preferably, the cover plate 11 and the base plate 12 are connected by a plurality of fasteners, such as screws or bolts, for easy assembly and disassembly. In other embodiments, the bottom plate 12 may be a box structure with one side open.
The cam lever 2 abuts on one side of the table 1 in the first horizontal direction (the W direction shown in fig. 1), and the first end of the first link 3 is hinged to the cam portion 21 of the cam lever 2. Specifically, the cam handle 2 includes a cam portion 21 and a handle portion 22 connected to the cam portion 21, the cam portion 21 is hinged to the first end of the first link 3, and the handle portion 22 facilitates the operator to rotate the cam handle 2. Preferably, the cam portion 21 is provided integrally with the handle portion 22.
One side of the first horizontal direction of box structure is equipped with first through-hole, and the second end of first connecting rod 3 passes first through-hole and stretches into the installation intracavity, and the relative both sides of the second end of first connecting rod 3 articulate a second connecting rod 4 respectively. The first connecting rod 3 is driven to move along a first horizontal direction relative to the workbench 1 by rotating the cam handle 2. In this embodiment, the first link 3 is substantially T-shaped, one end of a vertical rod of the first link 3 is hinged to the cam portion 21, and both ends of a horizontal rod of the first link 3 are respectively hinged to one second link 4.
The sliding blocks 5, the second connecting rods 4, the floating blocks 6 and the clamping jaws 7 are uniformly and correspondingly arranged, one end of each sliding block 5 is hinged with one end, far away from the first connecting rod 3, of the corresponding second connecting rod 4, and the other end of each sliding block is hinged with the corresponding floating block 6; the first connecting rod 3 moves along a first horizontal direction, and the second connecting rod 4 rotates relative to the first connecting rod 3 while the second connecting rod 4 moves along with the first connecting rod 3; the slider 5 is moved in a second horizontal direction (L direction shown in fig. 1) with respect to the table 1 by the second link 4, the first horizontal direction and the second horizontal direction being perpendicular to each other.
The bottom plate 11 is in sliding fit with the slider 5, specifically, one of the upper surface of the bottom plate 11 and the lower surface of the slider 5 is provided with a slide rail, and the other one is provided with a slide groove in sliding fit with the slide rail, and the slide groove extends along the second horizontal direction.
The middle parts of the clamping jaws 7 are hinged with the workbench 1, and the first ends of the clamping jaws 7 are hinged with the corresponding floating blocks 6, so that the second ends of the two clamping jaws 7 can approach or depart from each other along a second horizontal direction to clamp or release a workpiece. Specifically, the claws 7 are hinged to the cover plate 11, the cover plate 11 is provided with through grooves 111 corresponding to the claws 7 one to one, and the second ends of the claws 7 extend out of the corresponding through grooves 111.
In the present embodiment, the first hinge shaft 81 connecting the cam handle 2 and the first link 3, the second hinge shaft 82 connecting the first link 3 and each of the second links 4, and the third hinge shaft 83 connecting the second link 4 and the corresponding slider 5 are all parallel to the vertical direction (H direction shown in fig. 1) which is perpendicular to the first horizontal direction and perpendicular to the second horizontal direction. The fourth hinge shaft 84 connecting the slider 5 and the corresponding slider 6, the fifth hinge shaft 85 connecting the slider 6 and the corresponding claw 7, and the sixth hinge shaft 86 connecting the claw 7 and the table 1 are all parallel to the first horizontal direction.
As shown in fig. 3 and 4, the above manual positioning and clamping device clamps the workpiece as follows: cam handle 2 rotates clockwise (arrow direction shown in fig. 3), first connecting rod 3 moves to cam handle 2 place side level along first horizontal direction, second connecting rod 4 rotates for first connecting rod 3 and corresponding slider 5, second connecting rod 4 promotes slider 5 and moves to one side of keeping away from first connecting rod 3 along the second horizontal direction, slider 5 will drive corresponding slider 6 and rotate, make corresponding jack catch 7 rotate around self articulated shaft, so as to hold the second of two jack catch 7 near each other, with the work piece that the clamp lies in on apron 11.
As shown in fig. 5 and 6, the manual positioning and clamping device releases the workpiece as follows: cam handle 2 rotates against the pointer (the direction of arrow in fig. 5), first connecting rod 3 moves to one side horizontal migration who keeps away from cam handle 2 along first horizontal direction, second connecting rod 4 rotates for first connecting rod 3 and corresponding slider 5, second connecting rod 4 promotes slider 5 and moves to one side that is close to first connecting rod 3 along the second horizontal direction, slider 5 will drive corresponding slider 6 and rotate, make corresponding jack catch 7 rotate around self articulated shaft, in order to keep away from each other the second end of two jack catch 7, in order to loosen the work piece that is located apron 11.
The manual positioning and clamping device provided by the embodiment is simple in structure, after a workpiece is placed on the workbench 1, clamping and loosening of the workpiece can be realized by clamping jaws 7 only by rotating the cam handle 2 to drive the first connecting rod 3, the second connecting rod 4, the sliding block 5 and the floating block 6 to act, the clamping mode is simple, the operation is rapid, and the clamping efficiency is improved.
Further, once the cam handle 2 is released after the workpiece is clamped by the above-described manual positioning and clamping device, the force between the workpiece and the jaws 7 may loosen the jaws 7 so that the workpiece cannot be effectively clamped. For this reason, in the embodiment, two limiting bosses 32 are arranged on the outer wall of the first connecting rod 3, and the two limiting bosses 32 are respectively arranged on two sides of the first connecting rod 3 in the second horizontal direction; the manual positioning and clamping device further comprises two compression springs 10, the compression springs 10 are arranged in a one-to-one correspondence mode with the limiting bosses 32, one side of each compression spring 10 abuts against the corresponding limiting boss 32, and the other side of each compression spring abuts against the inner side wall of the workbench 1. It should be noted that, the number of the compression springs 10 is not limited to two, and one compression spring 10 may also be provided, when one compression spring 10 is provided, on the premise that the first connecting rod 3 moves along the first horizontal direction is not affected, the compression spring 10 may be sleeved outside the first connecting rod 3, one end of the compression spring 10 abuts against the inner side wall of the workbench 1 on the side of the cam handle 2, and the other end abuts against the limit boss 32.
In the process of clamping the workpiece by using the above manual positioning and clamping device, the compression spring 10 is further compressed, and a force which is along the first horizontal direction and points to the side far away from the cam handle 2 is applied to the first connecting rod 3, so that the acting force between the cam handle 2 and the side wall of the workbench 1 is increased, the cam handle 2 is stably abutted against the side wall of the workbench 1, the clamping jaw 7 has enough clamping force to clamp the workpiece, and the stability of the clamping jaw 7 in clamping the workpiece is improved.
In other embodiments, the compression spring 10 may be replaced by an extension spring, one end of which is connected to the inner side wall of the workbench 1 at the side opposite to the cam handle 2, and the other end of which is connected to the end of the first link 3 away from the cam handle 2. During clamping of the workpiece by the above-mentioned manually positioned clamping device, the tension spring is further stretched, and a force directed in a first horizontal direction and away from the cam handle 2 is applied to the first link 3, so that the cam handle 2 is stably abutted against the side wall of the table 1, and the jaw 7 has a sufficient clamping force to clamp the workpiece.
Furthermore, the manual positioning and clamping device further comprises a positioning column 13 arranged on the upper surface of the workbench 1 and used for positioning the workpiece. The number of the positioning columns 13 can be set according to actual requirements, and is not limited in detail here.
Further, the inner wall of the bottom plate 12 is provided with avoidance grooves 121 corresponding to the sliders 6 one by one, so that at least part of the sliders 6 can enter the avoidance grooves 121. Because the floating block 6 can rotate relative to the second connecting rod 4 and the clamping jaw 7 can rotate relative to the floating block 6 in the process of clamping or loosening a workpiece, the interference of the bottom plate 12 on the rotation of the floating block 6 and the clamping jaw 7 can be avoided by arranging the avoidance groove 121.
As shown in fig. 7, in the present embodiment, the floating block 6 is in an "i" shape, and a fourth hinge shaft 84 and a fifth hinge shaft 85 parallel to the vertical beam 62 are disposed on two sides of the vertical beam 62 of the floating block 6, wherein the floating block 6 is hinged to the corresponding slider 5 through the fourth hinge shaft 84, and the floating block 6 is hinged to the corresponding latch 7 through the fifth hinge shaft 85.
After the workpiece is clamped by the manual positioning and clamping device, one end of the floating block 6, which is hinged with the corresponding sliding block 5, is supported by the inner wall of the bottom plate 12, the other end of the floating block is positioned right above the avoidance groove 121, and the floating block 6 is in a horizontal state at the moment; the side walls of the claws 7 abut against the vertical beams 62 of the slider 6 so that the claws 7 are arranged vertically. After the workpiece is loosened by using the manual positioning and clamping device, one end of the floating block 6, which is hinged with the corresponding clamping jaw 7, extends into the avoidance groove 121, an included angle is formed between the lower surface of the floating block 6 and the horizontal plane, and one end of the clamping jaw 7, which is hinged with the floating block 6, abuts against the bottom wall of the vertical beam 62, so that the second ends of the two clamping jaws 7 are in an open state.
Further, with reference to fig. 7, each jaw 7 is "E" shaped, and includes a first portion, a second portion 71, a third portion 72, and a fourth portion 73 connecting the same ends of the first portion, the second portion 71, and the third portion 72; the first portion is hinged to the two cross members 61 of the corresponding slider 6 by means of fifth hinging axes 85, the second portion 71 is hinged to the cover plate 11 by means of sixth hinging axes 86, and the third portion 72 is used for clamping the workpiece.
When the third portions 72 of the two jaws 7 are used for clamping a workpiece, in order to avoid damage to the workpiece caused by excessive force applied to the workpiece by the jaws 7, a first bending groove 74 is formed at the connecting position of the third portions 72 and the second portion 71, and a second bending groove 75 is formed on the side of the fourth portion 73 opposite to the second portion 71. The third portion 72 can have a certain elasticity by providing the first bending groove 74 and the second bending groove 75, thereby preventing the workpiece from being excessively pressed. Preferably, the jaws 7 are made of spring steel.
Preferably, the outer surface of the free end of the third portion 72 is spherical to avoid the third portion 72 having corners that could damage the workpiece.
Further, referring to fig. 1 and 2 again, the first connecting rod 3 is provided with a first lightening hole 31, the second connecting rod 4 is provided with a second lightening hole 41, and the bottom plate 12 is provided with a third lightening hole 122. By providing the first lightening hole 31, the second lightening hole 41 and the third lightening hole 122, the weight of the whole manual positioning and clamping device can be reduced.
Further, since the cam lever 2 abuts against the side wall of the table 1, the outer wall of the cam portion 21 and the side wall of the table 1 contacting the cam portion 21 are worn during the repeated rotation of the cam lever 2, so that the clamping of the claw 7 is affected. For this reason, this embodiment sets up wear-resisting plate 9 between cam portion 21 and the workstation 1 lateral wall rather than contact to reduce the wearing and tearing of cam portion 21, prolong the life of cam handle 2, avoid workstation 1 lateral wall to be worn out simultaneously, guarantee the stability that jack catch 7 can be to the work piece clamping. Preferably, the wear plate 9 is connected to the sidewall of the table 1 by fasteners such as screws, so as to facilitate the assembly and disassembly of the wear plate 9.
In this embodiment, the wear plate 9 is provided with a second through hole, and the first end of the first link 3 passes through the first through hole and the second through hole and is hinged to the cam portion 21 through the first hinge shaft 81.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Claims (8)
1. A manual positional clamping device, comprising:
the upper surface of the workbench (1) is used for placing a workpiece;
the outer wall of a cam part (21) of the cam handle (2) is abutted against one side of the workbench (1) in a first horizontal direction; the cam handle (2) is arranged outside the workbench (1);
the first connecting rod (3) can move along the first horizontal direction relative to the workbench (1), one end of the first connecting rod (3) is hinged with the cam handle (2), and two sides of the other end of the first connecting rod are respectively hinged with a second connecting rod (4);
the two sliding blocks (5) and the two floating blocks (6) can move along a second horizontal direction relative to the workbench (1), the first horizontal direction and the second horizontal direction are vertical to each other, the sliding blocks (5) correspond to the second connecting rods (4) and the floating blocks (6) one by one, one end of each sliding block (5) is hinged to the corresponding second connecting rod (4), and the other end of each sliding block (5) is hinged to the corresponding floating block (6);
the two clamping jaws (7) correspond to the floating blocks (6) one by one, the middle parts of the clamping jaws (7) are hinged to the workbench (1), and the first ends of the clamping jaws (7) are hinged to the corresponding floating blocks (6), so that the second ends of the two clamping jaws (7) can be close to or far away from each other along the second horizontal direction to clamp or loosen the workpiece;
the outer wall of the first connecting rod (3) is provided with a limiting boss (32); the device is characterized by further comprising a compression spring (10), wherein one end of the compression spring (10) is abutted against the inner side wall of the workbench (1) on the side where the cam handle (2) is located, and the other end of the compression spring (10) is abutted against the limiting boss (32);
or the device also comprises an extension spring, one end of the extension spring is connected to the inner side wall of the workbench (1) on the side opposite to the cam handle (2), and the other end of the extension spring is connected to one end, away from the cam handle (2), of the first connecting rod (3);
and a wear-resistant plate (9) is arranged between the cam part (21) and the side wall of the workbench (1) contacted with the cam part.
2. The manual positioning and clamping device according to claim 1, further comprising a positioning column (13) arranged on the upper surface of the worktable (1) for positioning the workpiece.
3. The manual positioning and clamping device according to claim 1, characterized in that said worktable (1) comprises:
the cover plate (11) is used for placing a workpiece;
the bottom plate (12) is arranged below the cover plate (11), one of the cover plate (11) and the bottom plate (12) is a box structure with one side open and the opening points to the other side, and the cover plate (11) and the bottom plate (12) are connected to form an installation cavity.
4. The manual positioning and clamping device according to claim 3, wherein a first through hole is formed in one side of the box structure in the first horizontal direction, and one end of the first connecting rod (3) far away from the cam handle (2) extends into the mounting cavity through the first through hole.
5. The manual positioning and clamping device according to claim 4, characterized in that the inner wall of the bottom plate (12) is provided with an avoidance groove (121) corresponding to the floating block (6) in a one-to-one manner, so that at least part of the floating block (6) can enter the avoidance groove (121).
6. The manual positioning and clamping device according to claim 3, wherein the cover plate (11) is provided with through grooves (111) corresponding to the claws (7) one by one, and the second ends of the claws (7) extend out of the corresponding through grooves (111).
7. Manual positioning and clamping device, according to any of claims 1 to 6, characterized in that each of said jaws (7) is "E" -shaped, comprising a first, a second and a third portion (71, 72) arranged in parallel, and a fourth portion (73) connecting the same ends of said first, second and third portions (71, 72);
the first portion is hinged with the corresponding floating block (6), the second portion (71) is hinged with the workbench (1), and the third portion (72) is used for clamping a workpiece.
8. The manually positionable clamping device of claim 7, wherein a first bending groove (74) is provided at a location where the third portion (72) is connected to the second portion (71), and a second bending groove (75) is provided at a side of the fourth portion (73) facing away from the second portion (71).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010681969.5A CN111745569B (en) | 2020-07-15 | 2020-07-15 | Manual positioning and clamping device |
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| CN202010681969.5A CN111745569B (en) | 2020-07-15 | 2020-07-15 | Manual positioning and clamping device |
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| CN111745569A CN111745569A (en) | 2020-10-09 |
| CN111745569B true CN111745569B (en) | 2022-05-03 |
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| CN206550684U (en) * | 2017-03-05 | 2017-10-13 | 桐乡市大周商贸有限公司 | One kind brake clamping apparatus for disc |
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| CN111745569A (en) | 2020-10-09 |
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