Automobile fastener stamping tool
By designing an adjustable clamping angle turntable and drive disc structure, the problem of unstable clamping in fastener processing was solved, achieving stable clamping of fasteners of different specifications and shapes, and improving stamping accuracy and safety.
Patent Information
- Application Number
- CN202520313229.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-26
AI Technical Summary
When processing fasteners of different specifications and shapes, existing stamping equipment requires frequent changes of tooling fixtures, and surface defects of the workpiece cause unstable clamping, posing a safety hazard.
Design an automotive fastener stamping fixture comprising a base, a drive plate, and a turntable. Through the transmission connection between the turntable and the drive plate, the clamping assembly is rotated to adjust the clamping angle, adapting to different workpiece sizes and shapes, and avoiding unstable clamping.
It achieves stable clamping of different fasteners, avoiding clamping instability caused by surface defects or processing errors, and improving stamping accuracy and safety.
Smart Images
Figure CN223833351U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive fastener processing technology, specifically to an automotive fastener stamping fixture. Background Technology
[0002] Fasteners are used in various industries such as energy, electronics, electrical appliances, machinery, chemicals, metallurgy, molds, and hydraulics. They can be found in various machines, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, and meters. They are the most widely used basic mechanical components. In the automotive industry, the fasteners used are mostly bolts and nuts. During the processing of fasteners, they need to be stamped, so various stamping devices have appeared on the market.
[0003] Existing stamping equipment requires tooling fixtures to fix the workpiece during stamping, so as to ensure stamping accuracy while completing the stamping function. In addition to the equipment itself, the accuracy of stamping is greatly influenced by whether the workpiece is positioned well during the stamping process.
[0004] Because automotive fasteners come in a variety of specifications, sizes, and shapes (e.g., bolts and nuts vary in size), existing tooling fixtures often need to be changed for different workpieces; that is, one type of tooling fixture is used to fix one type of workpiece. Alternatively, some workpieces may have undergone minor surface deformation during previous processing, resulting in shape or dimensional defects due to machining errors. During the stamping process, if the tooling fixture comes into contact with a defective surface of the workpiece during clamping and positioning, it may lead to unstable clamping, causing the workpiece to fly out under the stamping pressure, creating a safety hazard. Utility Model Content
[0005] This utility model addresses the technical problems existing in the prior art by providing an automotive fastener stamping fixture to solve the problem of unstable clamping caused by workpiece surface defects during the stamping process.
[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A stamping fixture for automotive fasteners includes a base, a drive plate, a turntable, and clamping components. The drive plate and the turntable are both disposed on the base and rotatably connected to the base. The drive plate is driven to the turntable to drive the turntable to rotate relative to the base. The turntable is provided with a placement groove, a feeding groove, a ejection groove, and a positioning groove. The feeding groove, the ejection groove, and the positioning groove are all connected to the placement groove. The placement groove is used to place a workpiece and has a stamping hole. There are two positioning grooves, which are respectively disposed on opposite sides of the turntable. There are two clamping components, which are both disposed on the turntable and located on opposite sides of the turntable. They are used to extend or move away from the positioning groove toward the placement groove to clamp or release the workpiece.
[0007] Furthermore, the stamping hole penetrates the turntable, and the base is provided with a material discharge hole, which is concentric with and connected to the stamping hole.
[0008] Furthermore, a material ejection spring is provided inside the stamping hole.
[0009] Furthermore, the turntable includes a rotating part and a processing part. The rotating part is connected to the drive disk in a driving connection. The processing part is located on the rotating part and is located at the center position. The placement groove, the feeding groove, the unloading groove and the positioning groove are all disposed on the side of the processing part away from the rotating part. The clamping assembly is located on the rotating part and is slidably engaged with the positioning groove.
[0010] Furthermore, a first annular boss is provided on the side of the turntable near the base, and a first annular groove is provided on the base, with the first annular boss and the first annular groove slidingly engaged.
[0011] Furthermore, a second annular boss is provided on the side of the drive disk near the base, and a second annular groove is provided on the base, with the second annular boss and the second annular groove slidingly engaged.
[0012] Furthermore, the clamping assembly includes a clamping drive, a telescopic rod, and a clamping member. The clamping drive is disposed on the turntable, and the two ends of the telescopic rod are respectively connected to the clamping drive and the clamping member. The telescopic rod is located in the positioning groove and slides in cooperation with the positioning groove.
[0013] Furthermore, a connecting hole is provided on the end of the telescopic rod away from the clamping drive member, and a connecting boss is provided on one end of the clamping member, the connecting boss engaging with the connecting hole.
[0014] Furthermore, the base is provided with guide posts.
[0015] Furthermore, there are four guide posts, which are located at the four corners of the base.
[0016] The beneficial effects of this utility model are as follows: by setting a turntable and a drive plate that rotate relative to the base, the rotation of the clamping component located on the turntable is driven, thereby realizing the adjustment of the clamping angle of the workpiece to be processed, avoiding the situation where the clamping is unstable during the stamping process due to defects or processing errors on the surface of the workpiece to be processed, thus avoiding safety hazards. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the automotive fastener stamping fixture in this utility model;
[0018] Figure 2 yes Figure 1 A schematic diagram of the exploded structure;
[0019] Figure 3 yes Figure 1 A first-person view structural diagram of the turntable;
[0020] Figure 4 yes Figure 1 A schematic diagram of the turntable from a second-view perspective;
[0021] Figure 5 yes Figure 1 Schematic diagram of the middle drive disk
[0022] Figure 6 yes Figure 1 Schematic diagram of the middle base;
[0023] Figure 7 yes Figure 1 Schematic diagram showing the positional relationship between the clamping component and the turntable;
[0024] Figure 8 yes Figure 7 Schematic diagram showing the positional relationship between the telescopic rod and the clamping component;
[0025] Explanation of reference numerals in the attached figures:
[0026] 1. Base; 2. Drive plate; 3. Turntable; 4. Clamping assembly;
[0027] 11. Material discharge hole; 12. First annular groove; 13. Second annular groove; 14. Guide post;
[0028] 21. Second annular boss;
[0029] 31. Placement groove; 32. Feed groove; 33. Unfeed groove; 34. Positioning groove; 35. First annular boss; 301. Rotating part; 302. Machining part; 311. Punching hole;
[0030] 41. Clamping drive component; 42. Telescopic rod; 43. Clamping component; 421. Connecting hole; 431. Connecting boss. Detailed Implementation
[0031] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.
[0032] It should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integrally formed structures. Those skilled in the art can understand the specific meaning of these terms in this patent based on the specific circumstances.
[0033] like Figure 1-8 As shown, the present invention provides a stamping fixture for automotive fasteners, comprising a base 1, a drive plate 2, a turntable 3, and clamping components 4. The drive plate 2 and the turntable 3 are both mounted on the base 1 and rotatably connected to the base 1. The drive plate 2 is connected to the turntable 3 via a transmission connection, used to drive the turntable 3 to rotate relative to the base 1. The turntable 3 is provided with a placement groove 31, a feeding groove 32, a ejection groove 33, and a positioning groove 34. The feeding groove 32, the ejection groove 33, and the positioning groove 34 are all connected to the placement groove 31. The placement groove 31 is used to place the workpiece and has a stamping hole 311. There are two positioning grooves 34, which are respectively located on opposite sides of the turntable 3. There are two clamping components 4, which are both mounted on the turntable 3 and located on opposite sides of the turntable 3. They are used to extend or move away from the positioning groove 34 toward the placement groove 31 to clamp or release the workpiece.
[0034] It is understandable that by controlling the extension distance of the clamping component 4, it is possible to adapt to workpieces of different sizes.
[0035] It should be noted that the transmission connection between the drive disk 2 and the turntable 3 can be in the form of internal gear and external gear meshing, or any other form, as long as the drive disk 2 can drive the turntable 3 to rotate relative to the base 1. Similarly, the driving method of the drive disk 2 can be any method, as long as the drive disk 2 can rotate relative to the base 1.
[0036] To illustrate with a specific example, an external gear is provided on the outer periphery of the turntable 3. The drive disk 2 is ring-shaped, with an internal gear that meshes with the turntable 3 on its inner side and an external gear on its outer side. By setting a drive motor and fitting a gear that meshes with the external gear on the outer side of the drive disk 2 onto the output shaft of the drive motor, the drive disk 2 can be driven to rotate relative to the base 1, thereby causing the drive disk 3 to rotate relative to the base 1.
[0037] It should be noted that when the drive disk 2 drives the turntable 3 to rotate, the clamping components 4 located on the turntable 3 rotate together with the turntable 3. This allows for adjustment of the angle at which the two clamping components 4 clamp the workpiece to be processed, avoiding the situation of insecure clamping when clamping workpieces with errors at a fixed angle. For example, when the workpiece to be processed is a hexagonal nut, during the stamping process, the stamping hole 311 is set to the shape corresponding to the hexagonal nut. At this time, the punch is used to press the workpiece to be processed into the stamping hole 311 to form the shape of a hexagonal nut. Then, during the processing of the workpiece in the previous process, there may be irregularities in the peripheral shape due to processing errors. In this case, the clamping angle of the two clamping components 4 can be adjusted by rotating the turntable 3, selecting a relatively regular surface for clamping and fixing, thereby achieving a firm clamping effect.
[0038] It should be noted that, in addition to adjusting the clamping angle, the rotation of turntable 3 can also be adapted to different feeding or unloading angles. For example, during the processing, turntable 3 can be rotated so that the feeding groove 32 and the unloading groove 33 correspond to the directions of the feeding equipment and the unloading equipment, respectively.
[0039] In one embodiment, the stamping hole 311 penetrates the turntable 3, and the base 1 is provided with a material discharge hole 11, which is concentric with and connected to the stamping hole 311.
[0040] In one embodiment, a ejector spring (not shown) is provided inside the stamping hole 311.
[0041] It should be noted that when the screw needs to be processed, the stamping hole 311 passes through the base plate 3 and connects with the blanking hole 11 to retract the stamped screw from below the blanking hole 11. When the nut needs to be processed, the shape of the stamping hole 311 is adapted to the shape of the nut to be processed, and after stamping, the formed nut is ejected from above the stamping hole 311 using a ejection spring.
[0042] It is understandable that the ejector spring can be set in the punch hole 311 in any form, such as one end connected to the bottom of the punch hole 311 and the other end connected to a baffle that matches the shape of the punch hole 311, as long as it can apply a spring force to the workpiece to exit the punch hole 311 from above after the punching is completed.
[0043] It should be noted that when a nut is required, the workpiece to be processed can be continuously fed into the placement groove 31 from the feed groove 32. After it is positioned at the position corresponding to the stamping hole 311, it is clamped by the clamping assembly 4 and stamped. Then, it is withdrawn from the stamping hole 311 and removed from the tooling through the ejector groove 33. When the workpiece to be processed is a screw, the workpiece to be processed can be placed directly into the placement groove 31 at the position of the stamping hole 311 from either the feed groove 32 or the ejector groove 33. After stamping, the formed screw is removed from the tooling from below the discharge hole 11 of the base 1.
[0044] In one embodiment, the turntable 3 includes a rotating part 301 and a processing part 302. The rotating part 301 is connected to the drive disk 2. The processing part 302 is located on the rotating part 301 and is located at the center. The placement groove 31, the feeding groove 32, the unloading groove 33 and the positioning groove 34 are all disposed on the side of the processing part 302 away from the rotating part 301. The clamping assembly 4 is located on the rotating part 301 and is slidably engaged with the positioning groove 34.
[0045] In one embodiment, a first annular boss 35 is provided on the side of the turntable 3 near the base 1, and a first annular groove 12 is provided on the base 1. The first annular boss 35 and the first annular groove 12 are slidably engaged.
[0046] In one embodiment, a second annular boss 21 is provided on the side of the drive disk 2 near the base 1, and a second annular groove 13 is provided on the base 1. The second annular boss 21 and the second annular groove 13 are slidably engaged.
[0047] In this embodiment, the diameter of the second annular boss 21 is larger than that of the first annular boss 35.
[0048] It should be noted that, in order to ensure the stability of the turntable during operation, positioning elements can be provided between the first annular boss 35 and the first annular groove 12 and / or between the second annular boss 21 and the second annular groove 13, so as to restrict the rotation of the turntable 3 and the drive disk 2 relative to the base 1 when the turntable 3 does not need to be rotated.
[0049] In one embodiment, both clamping components 4 include a clamping drive 41, a telescopic rod 42, and a clamping member 43. The clamping drive 41 is disposed on the turntable 3. The two ends of the telescopic rod 42 are respectively connected to the clamping drive 41 and the clamping member 42, and the telescopic rod 42 is located in the positioning groove 34 and slides in cooperation with the positioning groove 34.
[0050] It is understood that the clamping drive unit 41 can drive the telescopic rod 42 to extend or retract within the positioning groove 34, thereby causing the clamping member 42 to clamp or release the workpiece. The clamping member 43 can be selected in shape and size according to requirements. When its size is larger than the positioning groove 34, the clamping member 43 moves within the placement groove 31. When its size is smaller than the positioning groove 34 but its shape matches the positioning groove 34, the clamping member 43 can also enter the positioning groove 34 as the telescopic rod 42 retracts; this is not limited in this respect.
[0051] It is understood that the clamping drive component 41 can be a cylinder or any other drive component, as long as it can drive the telescopic rod 42 to extend and retract within the positioning groove 34.
[0052] In one embodiment, a connecting hole 421 is provided on the end of the telescopic rod 42 away from the clamping drive member 41, and a connecting boss 431 is provided on one end of the clamping member 43, and the connecting boss 431 is engaged with the connecting hole 421.
[0053] It is understandable that by connecting the boss 431 and the connecting hole 421, the clamping part 43 can be replaced according to different clamping requirements.
[0054] In one embodiment, a guide post 14 is provided on the base 1.
[0055] It is understandable that the guide post 14 can be used to slide with the die of the punch part to guide the stamping process and thus increase the stamping accuracy.
[0056] In one embodiment, there are four guide posts 14, which are located at the four corners of the base 1.
[0057] The working principle of this utility model is as follows: When a screw needs to be processed, the punching hole 311 is a through hole that passes through the turntable 3. The workpiece to be processed is placed in the placement groove 31. After the turntable 3 is rotated to adjust the clamping angle of the two clamping components 4, the clamping drive component 41 drives the telescopic rod 42 to extend in the positioning groove 34, so that the clamping component 43 abuts against the surface of the workpiece to be processed. Then the punch presses down to break off the burrs formed in the previous process of the screw. The formed screw falls from the punching hole 311 and the blanking hole 11, completing the processing of the screw in this process. When a nut needs to be processed, the punch hole 311 corresponds to the shape of the nut. The workpiece to be processed is placed in the placement groove 31 at the position corresponding to the punch hole 311. After rotating the turntable 3 to adjust the clamping angle of the two clamping components 4, the clamping drive 41 drives the telescopic rod 42 to extend in the positioning groove 34, so that the clamping component 43 abuts against the surface of the workpiece to be processed. Then the punch presses down, and the punch cooperates with the punch hole 311 to squeeze the workpiece into the shape of a nut. The formed nut is ejected from above the punch hole 311, completing the processing of the nut.
[0058] It should be noted that regardless of whether a nut or a screw is being processed, the clamping member 43 will not interfere with the stamping process. When a screw is being processed, the workpiece placed in the placement slot is a forged screw blank with burrs on one end. At this time, the screw is placed vertically along the axial direction in the placement slot 31 at the position corresponding to the stamping hole 311. The two clamping members 43 abut against the middle of the screw blank, which helps to stabilize the screw blank. After the punch presses down, the burrs on the screw blank are blocked by the stamping hole 311, and the screw itself falls out from the blanking hole 11. When a nut is being processed, the size of the nut blank is slightly larger than the stamping hole 311. After it is placed, the clamping member 43 is used to hold the nut blank in place. Then the punch directly squeezes the nut blank into the stamping hole 311, squeezing it into the shape of a nut. In the above process, neither the clamping member 43 nor the telescopic rod 42 will interfere with the stamping process.
[0059] As can be seen from the above, this utility model sets up a turntable and a drive disc that rotate relative to the base, thereby driving the rotation of the clamping components located on the turntable. This allows for the adjustment of the clamping angle of the workpiece to be processed, avoiding instability in clamping during the stamping process caused by defects or processing errors on the surface of the workpiece, thus preventing potential safety hazards.
[0060] At the same time, the extension and retraction of the telescopic rods in the two clamping components can better adapt to fasteners of different sizes, and can be positioned and clamped for fasteners of different sizes.
[0061] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise expressly specified and limited, the terms "installed," "connected," or "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection via an intermediate medium; or a connection within two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0062] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.
[0063] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A stamping fixture for automotive fasteners, characterized in that, include: The system includes a base, a drive disk, a turntable, and a clamping assembly. The drive disk and the turntable are both mounted on the base and rotatably connected to it. The drive disk is connected to the turntable via a transmission connection and is used to drive the turntable to rotate relative to the base. The turntable is provided with a placement slot, a feeding slot, a discharge slot, and a positioning slot. The feeding slot, the discharge slot, and the positioning slot are all connected to the placement slot. The placement slot is used to place the workpiece and has a stamping hole. There are two positioning slots, which are respectively set on opposite sides of the turntable. There are two clamping components, which are both set on the turntable and located on opposite sides of the turntable. They are used to extend or move away from the placement slot in the positioning slot to clamp or release the workpiece.
2. The automotive fastener stamping fixture as described in claim 1, characterized in that: The stamping hole penetrates the turntable, and the base has a material discharge hole, which is concentric with and connected to the stamping hole.
3. The automotive fastener stamping fixture as described in claim 1, characterized in that: The punching hole is equipped with a material ejection spring.
4. The automotive fastener stamping fixture as described in claim 1, characterized in that: The turntable includes a rotating part and a processing part. The rotating part is connected to the drive disk. The processing part is located on the rotating part and at the center. The placement groove, the feeding groove, the unloading groove and the positioning groove are all disposed on the side of the processing part away from the rotating part. The clamping assembly is located on the rotating part and slides with the positioning groove.
5. The automotive fastener stamping fixture as described in claim 1, characterized in that: The turntable has a first annular boss on the side near the base, and the base has a first annular groove, with the first annular boss and the first annular groove slidingly engaged.
6. The automotive fastener stamping fixture as described in claim 1, characterized in that: The drive disk has a second annular boss on the side near the base, and the base has a second annular groove. The second annular boss and the second annular groove slide together.
7. The automotive fastener stamping fixture as described in claim 1, characterized in that: The clamping assembly includes a clamping drive, a telescopic rod, and a clamping member. The clamping drive is disposed on the turntable. The two ends of the telescopic rod are respectively connected to the clamping drive and the clamping member, and the telescopic rod is located in the positioning groove and slides in cooperation with the positioning groove.
8. The automotive fastener stamping fixture as described in claim 7, characterized in that: The telescopic rod has a connecting hole at the end away from the clamping drive member, and the clamping member has a connecting boss at one end, which engages with the connecting hole.
9. The automotive fastener stamping fixture as described in claim 1, characterized in that: The base is equipped with guide columns.
10. The automotive fastener stamping fixture as described in claim 9, characterized in that: The number of guide posts is four, and the four guide posts are located at the four corners of the base.