CN210648564U

CN210648564U - Raw claw

Info

Publication number: CN210648564U
Application number: CN201921692100.XU
Authority: CN
Inventors: 金灿灿; 罗国章
Original assignee: Zhejiang Jingsu Machine Tool Accessories Co ltd
Current assignee: Zhejiang Jingsu Laser Technology Co ltd
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-06-02
Anticipated expiration: 2029-10-10

Abstract

The utility model relates to a technical field of anchor clamps wherein discloses a give birth to claw, locates on the chuck for the clamping workpiece, locate the slide on the chuck including sliding, the one end that the slide is close to the work piece is equipped with the holder, the holder is close to the articulated slide of one end of chuck, the holder is the clamping face towards one side of work piece, the clamping face supports tight work piece, the one end that the work piece was kept away from to the slide is equipped with the driving piece, the driving piece is used for promoting the holder to rotate and support tight work piece around its articulated department. The utility model discloses have and slide to give birth to the claw and make and give birth to claw butt work piece, utilize the driving piece to promote the holder afterwards for the clamping face laminating work piece, the stable effect of centre gripping of work piece is guaranteed to the butt area of increase and work piece.

Description

Raw claw

Technical Field

The utility model belongs to the technical field of the technique of anchor clamps and specifically relates to a give birth to claw is related to.

Background

The three-jaw chuck consists of a chuck body, a movable jaw and a jaw driving mechanism, is one of machine tool accessories and realizes the clamping and positioning of a workpiece.

The traditional Chinese patent with publication number CN106216725A discloses a multipurpose three-jaw chuck, which comprises a front end cover and a rear end cover which are matched with each other, wherein a plurality of jaws are uniformly arranged on the front end cover of the chuck, and one end of each jaw is a butt joint surface for clamping a workpiece.

The above prior art solutions have the following drawbacks: referring to fig. 1, the abutting surface 021 is perpendicular to the end surface of the chuck 01, the abutting surfaces 021 of the plurality of jaws 02 surround to form a cylindrical structure, if the circumferential direction of the workpiece 03 is tapered, and the diameter of one end of the workpiece 03 far away from the chuck 01 is smaller, an included angle is formed between the abutting surface 021 of the jaw 02 and the surface of the workpiece 03, the contact area between the abutting surface 021 and the surface of the workpiece 03 is small, and the workpiece 03 is clamped unstably.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a give birth to claw, slip and give birth to the claw and make to give birth to claw butt work piece, utilize the driving piece to promote the holder afterwards for the clamping face laminating work piece, the butt area of increase and work piece guarantees that the centre gripping of work piece is stable.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a give birth to claw, locates on the chuck for the centre gripping work piece, locate the slide on the chuck including sliding, the one end that the slide is close to the work piece is equipped with the holder, the articulated slide of one end that the holder is close to the chuck, the holder is the clamping face towards one side of work piece, the clamping face stretches out the slide and supports tight work piece, the one end that the work piece was kept away from to the slide is equipped with the driving piece, the driving piece is used for promoting the holder to rotate and support tight work piece around its articulated department.

Through adopting above-mentioned technical scheme, slide and give birth to the claw and make and give birth to claw butt work piece, utilize the driving piece to promote the holder afterwards for the holding surface laminating work piece, the butt area of increase and work piece guarantees that the centre gripping of work piece is stable.

The utility model discloses further set up to: the driving piece is including locating support piece on the slide and wearing to locate the actuating lever on the support piece, the actuating lever extends along the slip direction of slide, the periphery of actuating lever is equipped with the screw thread, actuating lever threaded connection is on support piece, the one end slip that the actuating lever is close to the work piece supports tight holder.

Through adopting above-mentioned technical scheme, rotate the actuating lever for the actuating lever is close to and supports tight holder, and actuating lever threaded connection in support piece guarantees that holder presss from both sides tight work piece, accomplishes the centre gripping of work piece.

The utility model discloses further set up to: the reset spring is arranged between the supporting piece and the clamping piece, two ends of the reset spring are respectively connected with the supporting piece and the clamping piece, and the reset spring enables the clamping piece to have a tendency of rotating towards the direction close to the supporting piece.

Through adopting above-mentioned technical scheme, rotate the actuating lever for the clamping piece is kept away from to the actuating lever, and reset spring makes the clamping piece keep away from the work piece, and the claw is given birth to the slip of keeping away from the work piece afterwards, accomplishes unloading of work piece.

The utility model discloses further set up to: one side of the clamping piece, which is far away from the workpiece, is provided with a limiting part, and when the clamping piece is abutted against the limiting part, the clamping surface is perpendicular to the sliding direction of the sliding seat.

Through adopting above-mentioned technical scheme, the actuating lever breaks away from the holder, holder butt locating part, and the slip direction of the perpendicular slide of clamping face realizes stablizing the conventional work piece of centre gripping.

The utility model discloses further set up to: the locating part includes that two locate the curb plate on the slide and locate the curb plate and keep away from the roof of slide one end, two the curb plate is located the both ends of its slip direction of slide perpendicular respectively.

Through adopting above-mentioned technical scheme, the week side of actuating lever and reset spring is located to locating part and slide, damages actuating lever or reset spring when avoiding the installation work piece, guarantees the life who gives birth to the claw.

The utility model discloses further set up to: the driving piece wears to locate the actuating lever on the support piece including support piece and the slip of locating on the slide, the actuating lever extends along the slip direction of slide, the last mounting hole that is equipped with of support piece, the axis vertical drive pole of mounting hole, threaded connection has the bolt in the mounting hole, the tight actuating lever is supported to the one end of bolt.

Through adopting above-mentioned technical scheme, the actuating lever slides fast for the holder supports tight work piece, utilizes the bolt locking actuating lever afterwards, realizes accomplishing the installation of work piece fast.

The utility model discloses further set up to: the mounting hole is a counter bore, and the bolt is completely embedded in the mounting hole.

Through adopting above-mentioned technical scheme, avoid the bolt to interfere centre gripping, the processing of work piece.

The utility model discloses further set up to: the clamping piece is characterized in that a mounting groove is formed in the sliding seat, a pin hole penetrates through the sliding seat and is communicated with the mounting groove, a pin shaft is embedded in the pin hole, an installation block is arranged at one end, close to the chuck, of the clamping piece, the installation block is embedded in the mounting groove, and the pin shaft penetrates through the installation block.

Through adopting above-mentioned technical scheme, realize articulating the grip block to the slide on.

The utility model discloses further set up to: the periphery of installation piece is established to the arc, and this arc with the coaxial setting of round pin axle.

Through adopting above-mentioned technical scheme, reduce the interval between installation piece and the slide for the structure of giving birth to the claw is compacter.

To sum up, the utility model discloses a beneficial technological effect does:

the clamping part is driven by the driving part to move along the clamping surface, so that the clamping surface is pressed against the workpiece;

the driving rod is in threaded connection with the supporting piece, so that the clamping piece is guaranteed to clamp the workpiece, and the workpiece is clamped;

the driving rod is connected with the supporting piece in a sliding mode, so that the workpiece is clamped quickly, and the workpiece is clamped;

the actuating lever breaks away from the holder, and the holder butt locating part, the slip direction of the perpendicular slide of clamping face realize stablizing centre gripping conventional work piece.

Drawings

Fig. 1 is a schematic view of a conventional chuck for holding a workpiece.

Fig. 2 is a schematic overall structure diagram of the first embodiment.

Fig. 3 is a schematic structural diagram of the limiting member.

Fig. 4 is a sectional structure diagram of the first embodiment.

Fig. 5 is a schematic overall structure diagram of the first embodiment.

Fig. 6 is a schematic overall structure diagram of the first embodiment.

In the figure, 01, chuck; 02. a claw; 021. an abutting surface; 03. a workpiece; 1. a slide base; 11. mounting grooves; 12. a pin hole; 13. a pin shaft; 2. a clamping member; 21. a clamping surface; 22. mounting blocks; 3. a drive member; 31. a support member; 311. mounting holes; 312. a bolt; 32. a drive rod; 4. a limiting member; 41. a side plate; 42. a top plate; 5. a return spring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment is as follows:

referring to fig. 2 and 3, for the jaw of the present invention, which is disposed on a chuck for clamping a workpiece, the jaw comprises a slide seat 1 slidably disposed on the chuck and a clamping member 2 hinged on the slide seat 1, a mounting groove 11 is disposed at an end of the slide seat 1 close to the workpiece, a pin hole 12 penetrates through a side wall of the mounting groove 11, a pin 13 is embedded in the pin hole 12, a mounting block 22 is disposed at an end of the clamping member 2 close to the chuck, the mounting block 22 is embedded in the mounting groove 11, the pin 13 penetrates the mounting block 22, an outer periphery of the mounting block 22 is an arc, and the arc is coaxial with the pin 13, a clamping surface 21 is disposed at a side of the clamping member 2 facing the workpiece, the clamping surface 21 extends out of the slide seat 1 and abuts against the workpiece, a driving member 3 is disposed at an end of the slide seat 1 away from the workpiece, the driving member 3 is used for pushing the clamping member 2 to rotate, utilize driving piece 3 to promote holder 2 afterwards for clamping face 21 laminates the work piece, and the increase is with the butt area of work piece, guarantees that the centre gripping of work piece is stable.

Referring to fig. 3 and 4, the driving member 3 includes a supporting member 31 disposed on the sliding seat 1 and a driving rod 32 disposed on the supporting member 31 in a penetrating manner, the driving rod 32 extends along a sliding direction of the sliding seat 1, threads are disposed on a periphery of the driving rod 32, the driving rod 32 is connected to the supporting member 31 in a threaded manner, one end of the driving rod 32 close to the workpiece slides and abuts against the clamping member 2, a return spring 5 is disposed between the supporting member 31 and the clamping member 2, two ends of the return spring 5 are respectively connected to the supporting member 31 and the clamping member 2, the return spring 5 makes the clamping member 2 have a tendency of rotating in a direction close to the supporting member 31, a limiting member 4 is disposed on one side of the supporting member 31 facing the clamping member 2, the limiting member 4 includes two side plates 41 disposed on the sliding seat 1 and a top plate 42 disposed on one end of the, Support piece 31 can adopt integrative setting, and actuating lever 32, reset spring 5 all are located locating part 4, damage actuating lever 32 or reset spring 5 when avoiding installing the work piece, guarantee to give birth to the life of claw, and when holder 2 butt locating part 4 kept away from support piece 31's one end, the normal work piece of centre gripping is realized stablizing to the slip direction of clamping face 21 perpendicular slide 1.

The implementation principle of the embodiment is as follows: the claw makes the claw butt work piece give birth to in the slip, rotates driving piece 3 afterwards and makes driving piece 3 be close to and promote holder 2 for the 21 laminating work pieces of clamping face, the butt area of increase and work piece, and actuating lever 32 threaded connection support piece 31 guarantees that holder 2 presss from both sides tight work piece, accomplishes the centre gripping of work piece, guarantees that the centre gripping of work piece is stable.

The second embodiment differs from the first embodiment in that:

referring to fig. 5 and 6, the driving member 3 includes a supporting member 31 disposed on the sliding seat 1 and a driving rod 32 slidably disposed through the supporting member 31, the driving rod 32 extends along a sliding direction of the sliding seat 1, a mounting hole 311 is formed in the supporting member 31, the axis of the mounting hole 311 is perpendicular to the driving rod 32, a bolt 312 is connected to an inner thread of the mounting hole 311, one end of the bolt 312 abuts against the driving rod 32, the mounting hole 311 is a counter bore, the bolt 312 is completely embedded in the mounting hole 311, and the bolt 312 is prevented from interfering with clamping and processing of a workpiece.

The implementation principle of the embodiment is as follows: slide and give birth to the claw and make and give birth to claw butt work piece, rotate driving piece 3 afterwards and make driving piece 3 be close to and promote holder 2 for the 21 laminating work pieces of clamping face, the butt area of increase and work piece, and actuating lever 32 sliding connection support piece 31 realizes that holder 2 supports tight work piece fast, accomplishes the centre gripping of work piece, guarantees that the centre gripping of work piece is stable.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A raw claw, arranged on a chuck for clamping a workpiece, characterized in that it comprises a sliding seat (1) slidably arranged on the chuck, and one end of the sliding seat (1) close to the workpiece is provided with a clamp A holder (2), one end of the holder (2) close to the chuck is hinged with the sliding seat (1), the side of the holder (2) facing the workpiece is a clamping surface (21), the holder The holding surface (21) protrudes from the sliding seat (1) and presses against the workpiece. The end of the sliding seat (1) away from the workpiece is provided with a driving member (3), and the driving member (3) is used to push the clamping member ( 2) Rotate around its hinge and press against the workpiece.

2 . The raw claw according to claim 1 , wherein the driving member ( 3 ) comprises a supporting member ( 31 ) arranged on the sliding seat ( 1 ) and a supporting member ( 31 ) passing through the supporting member ( 31 ). 3 . A driving rod (32), the driving rod (32) extends along the sliding direction of the sliding seat (1), the outer circumference of the driving rod (32) is provided with threads, and the driving rod (32) is threadedly connected to the support ( 31), one end of the driving rod (32) close to the workpiece slides against the clamping member (2).

3 . The raw claw according to claim 2 , wherein a return spring ( 5 ) is arranged between the support member ( 31 ) and the clamping member ( 2 ), and two parts of the return spring ( 5 ) are provided. 4 . The ends are respectively connected with the support (31) and the clamp (2), and the return spring (5) makes the clamp (2) have a tendency to rotate toward the direction of the support (31).

4. A raw claw according to claim 1, characterized in that: a limiter (4) is provided on the side of the clamping piece (2) away from the workpiece, and the clamping piece (2) abuts against the limiter When the component (4) is installed, the clamping surface (21) is perpendicular to the sliding direction of the sliding seat (1).

5 . The raw claw according to claim 4 , wherein the limiting member ( 4 ) comprises two side plates ( 41 ) arranged on the sliding seat ( 1 ), and two side plates ( 41 ) arranged on the side plates ( 41 ) away from The top plate (42) at one end of the sliding seat (1), and the two side plates (41) are respectively arranged at two ends of the sliding seat (1) perpendicular to its sliding direction.

6 . The raw claw according to claim 1 , wherein the driving member ( 3 ) comprises a support member ( 31 ) provided on the sliding seat ( 1 ) and a support member ( 31 ) slidably penetrated through the support member ( 31 ). 7 . The drive rod (32) extends along the sliding direction of the sliding seat (1), the support member (31) is provided with a mounting hole (311), and the axis of the mounting hole (311) A vertical drive rod (32), the mounting hole (311) is internally threaded with a bolt (312), and one end of the bolt (312) is pressed against the drive rod (32).

7 . The raw claw according to claim 6 , wherein the mounting hole ( 311 ) is a countersunk hole, and the bolt ( 312 ) is completely embedded in the mounting hole ( 311 ). 8 .

8 . The raw claw according to claim 1 , wherein a mounting groove ( 11 ) is provided on the sliding seat ( 1 ), and a pin hole ( 12 ) runs through the sliding seat ( 1 ). The pin hole (12) communicates with the installation groove (11), the pin hole (12) is embedded with a pin shaft (13), and the end of the clamping member (2) close to the chuck is provided with a mounting block (22) , the mounting block (22) is embedded in the mounting groove (11), and the pin shaft (13) penetrates the mounting block (22).

9 . The raw claw according to claim 8 , wherein the outer circumference of the mounting block ( 22 ) is set in an arc shape, and the arc shape is coaxial with the pin shaft ( 13 ). 10 .