CN116352425B - Automatic press riveting device and press riveting method for sheet metal machining - Google Patents
Automatic press riveting device and press riveting method for sheet metal machining Download PDFInfo
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- CN116352425B CN116352425B CN202310170799.8A CN202310170799A CN116352425B CN 116352425 B CN116352425 B CN 116352425B CN 202310170799 A CN202310170799 A CN 202310170799A CN 116352425 B CN116352425 B CN 116352425B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
- B23P19/062—Pierce nut setting machines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Press Drives And Press Lines (AREA)
Abstract
The invention relates to the technical field of sheet metal riveting processing, in particular to an automatic riveting device for sheet metal processing, which comprises a workbench, a punching machine, a controller, an automatic feeder and a riveting die, wherein the punching machine is arranged on the rear side of the upper surface of the workbench, the controller is arranged at the right rear corner of the upper surface of the workbench, the controller is electrically connected with the punching machine, the automatic feeder is arranged on the upper surface of the workbench, the automatic feeder is positioned under the punching machine, the automatic feeder is electrically connected with the controller, and the riveting die is arranged on the front side of the top of the automatic feeder. The invention has the function of workpiece positioning, is beneficial to workers to align the workpiece riveting holes with the riveting die, can relieve visual fatigue of the workers, can not cause arm ache of the workers, ensures the riveting quality of horizontal riveting of the workpieces, has the function of ejecting the riveting nuts, saves time and labor when the workpieces are re-riveted, improves the qualification rate and saves cost.
Description
Technical Field
The invention relates to the technical field of sheet metal press riveting processing, in particular to an automatic press riveting device and a press riveting method for sheet metal processing.
Background
The automatic punching machine is characterized in that a punching machine device and a special connecting die are utilized to form a stress-free concentrated internal embedded round dot with certain tensile strength and shear strength according to cold extrusion deformation of a plate material through an instant strong high-pressure processing process, so that two or more layers of plate materials with different thicknesses can be connected;
The automatic punching machine mainly comprises a punching machine, a controller, an automatic feeder rivet pressing die and a foot switch, when the automatic punching machine is used, a worker inserts a workpiece rivet pressing hole on the rivet pressing die, the automatic feeder sends a rivet pressing nut to the position right above the rivet pressing die, the punching machine presses the rivet pressing nut downwards, and the rivet pressing nut is embedded in the workpiece rivet pressing hole to realize workpiece rivet pressing processing;
Because the press-riveting hole is smaller on the workpiece, before each press-riveting operation, workers need to carefully observe the press-riveting die and the workpiece press-riveting hole, so that the press-riveting hole is aligned to the press-riveting die, the workers need to hang the workpiece by arms, the workers work for a long time, visual fatigue can be caused, arm ache is easily caused, the workpiece is difficult to keep in a horizontal state during press-riveting, the press-riveting quality cannot be ensured, the press-riveting nut is poor in quality, or the unqualified workpiece press-riveting can be caused due to improper operation, the existing punching machine does not have the press-riveting nut ejection function, the re-riveting is time and labor consuming, and the automatic press-riveting device with the positioning function is required to be provided.
Disclosure of Invention
The invention aims to overcome the defects of high labor intensity, low accuracy and no ejection function of a press-riveting nut in the process of placing workpieces by workers in the prior art, and aims to solve the technical problems of an automatic press-riveting device and a press-riveting method for sheet metal machining.
The automatic riveting device for the sheet metal machining comprises a workbench, a punching machine, a controller, an automatic feeder and a riveting die, wherein the punching machine is arranged on the rear side of the upper surface of the workbench, the controller is arranged on the right rear corner of the upper surface of the workbench, the controller is electrically connected with the punching machine, the automatic feeder is arranged on the upper surface of the workbench and is positioned right below the punching machine, the automatic feeder is electrically connected with the controller, the riveting die is arranged on the front side of the top of the automatic feeder, the automatic riveting device further comprises a supporting platform, a plurality of positioners are arranged on the upper surface of the supporting platform from left to right, and the repairing mechanism is arranged on the left side wall of the workbench;
the positioning device comprises a guide rail embedded in the top of a supporting platform and provided with a dovetail-shaped inner cavity, a sliding block inserted in the inner cavity of the guide rail in a sliding mode, a baffle rotatably arranged on the top of the sliding block through a pin shaft, a pressure bar rotatably arranged at the left front end of the baffle through a pin shaft, a support rod arranged at the right front end of the baffle, a handle sleeved on the outer wall of the support rod and provided with a slideway on the left side of the handle, a U-shaped frame arranged at the front end of the pressure bar, two sucking discs respectively arranged at the two ends of the U-shaped frame and adsorbed on the upper surface of the supporting platform to position the baffle.
Preferably, the tops of the opposite surfaces of the baffle plates on the two opposite front and rear positioners are inclined planes.
Preferably, the upper surfaces of the supporting platform, the guide rail and the sliding block are all on the same horizontal plane.
The repairing mechanism comprises a first clamping plate fixedly connected to the front end of the left side wall of the workbench, a first jack is formed in the middle of the upper surface of the first clamping plate, a base is arranged on the lower surface of the first clamping plate, the base corresponds to the first jack in position, an ejection hydraulic cylinder is arranged at the bottom end center of the base, the ejector pin is arranged at the output end of the ejection hydraulic cylinder, a rotating assembly is arranged at the center position of the rear side of the first clamping plate, a second clamping plate is arranged at the top end of the rotating assembly, and a second jack is formed in the middle of the upper surface of the second clamping plate.
Preferably, when the second clamping plate rotates to be right above the first clamping plate, the second jack and the first jack are positioned on the same vertical line.
Preferably, the second clamping plate is fixed after rotating, the rotating assembly comprises a base, the base is fixedly connected to the center position of the rear side of the first clamping plate, clamping grooves are formed in the bottom of an inner cavity of the base at equal intervals along the circumferential direction, a rotating shaft is rotatably arranged at the center position of the bottom end of the inner cavity of the base through a bearing, a sleeve is arranged at the top end of the rotating shaft, tooth grooves are formed in the inner wall of the sleeve along the up-down direction, the outer wall of the sleeve is fixedly connected with the front side of the second clamping plate, a spring and a gear are inserted into the inner cavity of the sleeve from top to bottom, the outer wall of the gear is inserted into the tooth grooves, the number of the two protruding blocks is two, the left and right opposite fixing connection is achieved at the bottom end of the gear, and the protruding blocks on the gear are inserted into the inner cavity of the clamping grooves under the action of the spring.
Preferably, the shape of the protruding block is arc-shaped.
The press riveting method of the device comprises the following steps:
Step one, positioning and debugging a workpiece, namely lifting the handle, taking a supporting rod as a rotation center, lifting the U-shaped frame by the handle, separating the sucker from a supporting platform, releasing the positioning of the baffle, firstly placing the workpiece on the supporting platform, inserting a workpiece riveting hole on a riveting die, moving the baffle through a sliding block, rotating the baffle along the outline of the workpiece, clamping the workpiece by using the baffle at different positions on the supporting platform, pressing the handle, driving the U-shaped frame by a pressing rod to press the sucker, adsorbing the sucker on the supporting platform, positioning the baffle, completing the positioning and debugging of the workpiece, and ensuring that the workpiece is just positioned on the riveting die when the workpiece is lowered on the supporting platform through the limiting effect of the baffle, so that the operation is simple;
step two, driving the punching machine to act through the controller, moving the punch downwards to punch the press-riveting nut, embedding the press-riveting nut into the press-riveting hole of the workpiece, and realizing press-riveting processing of the workpiece;
step three, positioning before taking out the press-riveting nut on the workpiece, placing the workpiece on the upper surface of the first clamping plate, and moving the workpiece to enable the press-riveting nut to be positioned right above the first jack;
Step four, rotating the second clamping plate to enable the sleeve and the rotating shaft to synchronously rotate, under the limit effect of the tooth slot on the gear, the sleeve torsion pulls the gear to rotate, and as the protruding block is arc-shaped, the protruding block can be freely separated from the clamping groove until the second clamping plate covers the upper surface of the workpiece, the spring provides downward elastic force for the gear to enable the protruding block to be inserted into the clamping groove at the corresponding position, the sleeve is fixed, and then the second clamping plate is fixed;
And fifthly, pushing the ejector pin to move upwards through the ejection hydraulic oil cylinder, ejecting the riveting nut from the workpiece by the ejector pin, and achieving the purpose of disassembling the riveting nut so as to reprocess the workpiece.
Compared with the prior art, the invention has the following beneficial effects:
1. According to the invention, the handle is moved up and down, so that the pressing rod can swing up and down, the sucking disc is adsorbed on the supporting platform, the baffle is moved and rotated to be fixed under the assistance of the sliding block, so that the workpiece is limited by the plurality of baffles, the workpiece positioning function is realized, the workpiece riveting hole is aligned to the riveting die by a worker, the visual fatigue of the worker can be relieved, the arm pain of the worker is avoided, and the horizontal riveting quality of the workpiece is ensured;
2. According to the invention, the downward elastic force is provided for the gear through the elastic force of the spring, the protruding block after the sleeve rotates can be inserted into the clamping groove at the corresponding position, the fixing effect is achieved on the rotated second clamping plate, so that the first clamping plate and the second clamping plate are matched to limit a workpiece, the ejector pin is driven to move upwards through the ejection hydraulic cylinder, the ejector pin ejects the press-riveting nut on the workpiece, the press-riveting nut ejection function is provided, the workpiece is press-riveted again, time and labor are saved, the qualification rate is improved, and the cost is saved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a positioner according to the present invention;
FIG. 3 is a left side cross-sectional view of the positioner of the present invention;
FIG. 4 is a schematic diagram of a repairing mechanism according to the present invention;
FIG. 5 is a front cross-sectional view of the repairing mechanism of the present invention;
FIG. 6 is a front cross-sectional view of a rotary component of the present invention;
fig. 7 is a bottom view of the gear of the present invention.
In the drawing, a workbench, a 2-punching machine, a 3-controller, a 4-automatic feeder, a 5-riveting die, a 6-supporting platform, a 7-positioner, an 8-repairing mechanism, a 71-guide rail, a 72-sliding block, a 73-baffle plate, a 74-pressing rod, a 75-supporting rod, a 76-handle, a 77-U-shaped frame, a 78-sucker, a 81-first clamping plate, a 82-first jack, a 83-base, a 84-ejection hydraulic cylinder, a 85-ejector pin, a 86-rotating component, a 87-second clamping plate, a 88-second jack, a 861-base, a 862-clamping groove, a 863-rotating shaft, a 864-sleeve, a 865-tooth groove, a 866-spring, a 867-gear and a 868-lug.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a technical scheme that an automatic riveting device for sheet metal machining comprises a workbench 1, a punching machine 2, a controller 3, an automatic feeder 4 and a riveting die 5, wherein the punching machine 2 is arranged at the rear side of the upper surface of the workbench 1, the controller 3 is arranged at the right rear corner of the upper surface of the workbench 1, the controller 3 is electrically connected with the punching machine 2, the automatic feeder 4 is arranged at the upper surface of the workbench 1, the automatic feeder 4 is positioned under the punching machine 2, the automatic feeder 4 is electrically connected with the controller 3, the riveting die 5 is arranged at the front side of the top of the automatic feeder 4, and the automatic riveting device further comprises a supporting platform 6, a positioner 7 and a repairing mechanism 8, the supporting platform 6 is arranged at the right front corner of the upper surface of the workbench 1, the upper surface of the supporting platform 6 and the upper surface of the riveting die 5 are positioned at the same horizontal plane, and the positioners 7 are arranged at the upper surface of the supporting platform 6 from left to right in two rows;
The controller 3 drives the punch 2 to act, the punch moves downwards to punch the press-riveting nut, the press-riveting nut is embedded into the press-riveting hole of the workpiece, and press-riveting processing of the workpiece is realized;
as shown in fig. 2 and 3, the positioner 7 comprises a guide rail 71, a slide block 72, a baffle 73, a pressing rod 74, a supporting rod 75, a handle 76, a U-shaped frame 77 and a sucking disc 78, wherein the guide rail 71 is embedded at the top of the supporting platform 6, and the inner cavity of the guide rail 71 is in a dovetail shape, so that the slide block 72 is prevented from being separated from the guide rail 71; the sliding block 72 can be inserted into the inner cavity of the guide rail 71 in a sliding way, the sliding block 72 slides in the guide rail 71 to realize the movement of the baffle 73, the baffle 73 can be rotatably arranged at the top of the sliding block 72 through a pin shaft, the baffle 73 has a limiting function on a workpiece, the tops of opposite surfaces of the baffle 73 on the two front and rear positioners 7 are inclined planes, the space surrounded by the baffle 73 is from top to bottom and is convenient for workers to accurately place the workpiece on the supporting platform 6, the pressure bar 74 can be rotatably arranged at the left end of the front side of the baffle 73 through the pin shaft to play a supporting role on the U-shaped frame 77, the supporting rod 75 is arranged at the right end of the front side of the baffle 73, the handle 76 is sleeved on the outer wall of the supporting rod 75, a slide way is arranged at the left side of the handle 76 and is movably connected with the pressure bar 74, the pressure bar 74 can be pulled when the pressure bar 74 swings up and down, the pressure bar 74 penetrates through the inner cavity of the slide way, the U-shaped frame 77 is arranged at the front end of the pressure bar 74, the two suckers 78 are respectively arranged at the two ends of the U-shaped frame 77, and the suckers 78 are adsorbed on the upper surface of the supporting platform 6 to position the baffle 73;
The workpiece is positioned and debugged, the handle 76 is lifted, the supporting rod 75 is taken as a rotation center, the handle 76 is lifted to the U-shaped frame 77, the sucking disc 78 is separated from the supporting platform 6, the positioning of the baffle plate 73 is relieved, the workpiece is firstly placed on the supporting platform 6, the workpiece riveting hole is inserted in the riveting die 5, the baffle plate 73 is moved through the sliding block 72, the baffle plate 73 is rotated in a homeopathic mode according to the appearance of the workpiece, the workpiece is clamped by the baffle plate 73 at different positions on the supporting platform 6, the handle 76 is pressed down, the pressing rod 74 drives the U-shaped frame 77 to press the sucking disc 78, the sucking disc 78 is adsorbed on the supporting platform 6, the baffle plate 73 is positioned, the workpiece positioning debugging is completed, and the workpiece riveting hole is just positioned on the riveting die 5 through the limiting function of the baffle plate 73 when the workpiece is lowered onto the supporting platform 6, and the operation is simple.
As a preferred solution, the upper surfaces of the supporting platform 6, the guide rail 71 and the slide block 72 are all on the same horizontal plane, so that when the workpiece is placed on the supporting platform 6, no warping of the workpiece is ensured.
As shown in fig. 4 and 5, the repairing mechanism 8 further includes a first clamping plate 81, a first jack 82, a base 83, an ejection hydraulic cylinder 84, a thimble 85, a rotating assembly 86, a second clamping plate 87 and a second jack 88, wherein the first clamping plate 81 is fixedly connected to the front end of the left side wall of the workbench 1 and used for placing a workpiece, the first jack 82 is arranged in the middle of the upper surface of the first clamping plate 81, the base 83 is arranged on the lower surface of the first clamping plate 81, the base 83 corresponds to the first jack 82 in position, the ejection hydraulic cylinder 84 is arranged at the bottom end center of the base 83, the thimble 85 is arranged at the output end of the ejection hydraulic cylinder 84, the rotating assembly 86 is arranged at the rear center of the first clamping plate 81, the second clamping plate 87 is arranged at the top end of the rotating assembly 86, the workpiece is clamped by utilizing the cooperation of the first clamping plate 81 and the second clamping plate 87, the second jack 88 is arranged in the middle of the upper surface of the second clamping plate 87, when the second clamping plate 87 rotates to the position right above the first clamping plate 81, the second jack 88 and the first jack 82 are positioned on the same vertical line, the thimble 85 is prevented from being damaged by pressing the thimble 85 through the first jack 82 and the second jack 85, and the outside diameter of the workpiece is prevented from being damaged when the thimble 85 is pressed.
As a preferred solution, as shown in fig. 6 and 7, the rotating assembly 86 includes a base 861, a clamping groove 862, a rotating shaft 863, a sleeve 864, a tooth slot 865, a spring 866, a gear 867 and a bump 868, wherein the base 861 is fixedly connected to the center of the rear side of the first clamping plate 81, the bottom of the inner cavity of the base 861 is provided with the clamping groove 862 at equal intervals along the circumferential direction, the base 861 and the first clamping plate 81 are integrated, and the clamping groove 862 and the bump 868 are matched to position the sleeve 864; the sleeve 864 is arranged at the top end of the rotating shaft 863, a tooth slot 865 is formed in the inner wall of the sleeve 864 along the up-down direction, the tooth slot 865 plays a limiting role of the gear 867, so that the gear 867 can move up and down and simultaneously can rotate along with the sleeve 864, the outer wall of the sleeve 864 is fixedly connected with the front side of the second clamping plate 87, the spring 866 and the gear 867 are spliced in the inner cavity of the sleeve 864 from top to bottom, the outer wall of the gear 867 is spliced with the tooth slot 865, the spring 866 provides a downward elastic force for the gear 867, the fact that the lug 868 can stably stay in the clamping groove 862 is ensured, the number of the lugs 868 is two, the opposite positions are fixedly connected to the bottom end of the gear 867, the lug 868 on the gear 867 is inserted into the inner cavity of the clamping groove 862 under the action of the spring 866, the lug 868 is arc-shaped, and when the sleeve 864 rotates along with the sleeve 864, the lug 868 is blocked by the lug 868 to move freely in and out of the clamping groove 862;
Before the press-riveting nut on the workpiece is taken out, positioning, placing the workpiece on the upper surface of the first clamping plate 81, and moving the workpiece to enable the press-riveting nut to be positioned right above the first jack 82;
Rotating the second clamping plate 87 to enable the sleeve 864 and the rotating shaft 863 to synchronously rotate, and under the limit effect of the tooth slots 865 on the gear 867, the sleeve 864 torsionally pulls the gear 867 to rotate, and as the protruding blocks 868 are arc-shaped, the protruding blocks 868 can be freely separated from the clamping grooves 862 until the second clamping plate 87 covers the upper surface of a workpiece, the spring 866 provides downward elastic force for the gear 867 to enable the protruding blocks 868 to be inserted into the clamping grooves 862 at corresponding positions, and the sleeve 864 is fixed, so that the second clamping plate 87 is fixed;
the ejector pin 85 is pushed to move upwards by the ejection hydraulic oil cylinder 84, and the ejector pin 85 ejects the press-riveting nut from the workpiece, so that the purpose of disassembling the press-riveting nut is achieved, and the workpiece is reprocessed.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310170799.8A CN116352425B (en) | 2023-02-27 | 2023-02-27 | Automatic press riveting device and press riveting method for sheet metal machining |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310170799.8A CN116352425B (en) | 2023-02-27 | 2023-02-27 | Automatic press riveting device and press riveting method for sheet metal machining |
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| Publication Number | Publication Date |
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| CN116352425A CN116352425A (en) | 2023-06-30 |
| CN116352425B true CN116352425B (en) | 2025-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310170799.8A Active CN116352425B (en) | 2023-02-27 | 2023-02-27 | Automatic press riveting device and press riveting method for sheet metal machining |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN216501983U (en) * | 2021-11-10 | 2022-05-13 | 湖南泰川科技有限公司 | Quick positioning device for sheet metal riveting press |
| CN216858133U (en) * | 2021-12-29 | 2022-07-01 | 四川凯拓电器有限公司 | Novel sheet metal working squeeze riveter |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5177849A (en) * | 1990-07-02 | 1993-01-12 | Muskegon Automation Equipment, Inc. | Brake shoe rivet press |
| DE102017209118A1 (en) * | 2017-05-31 | 2018-12-06 | Robert Bosch Gmbh | PUNCHING DEVICE FOR PUTTING A PUNCH WITH A VIBRATOR SUPPORTING A STAMPING POWER, AND METHOD FOR PUNCHING WITH SUCH A PUNCHING RIVET DEVICE |
| CN216881560U (en) * | 2022-02-15 | 2022-07-05 | 安徽博世精密机械有限公司 | Numerical control squeeze riveter for sheet metal processing |
-
2023
- 2023-02-27 CN CN202310170799.8A patent/CN116352425B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN216501983U (en) * | 2021-11-10 | 2022-05-13 | 湖南泰川科技有限公司 | Quick positioning device for sheet metal riveting press |
| CN216858133U (en) * | 2021-12-29 | 2022-07-01 | 四川凯拓电器有限公司 | Novel sheet metal working squeeze riveter |
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| CN116352425A (en) | 2023-06-30 |
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