A sheet metal processing fixture for easy positioning

Abstract

This utility model relates to the field of mechanical engineering technology and discloses a sheet metal processing fixture for easy positioning. It includes a push plate, a transmission block fixedly connected to the bottom of the push plate, a threaded rod internally threaded to the transmission block, transmission rods fixedly connected to both ends of the threaded rod, partitions slidably connected to the left and right ends of the transmission rods, a wrench slidably connected to the top of the transmission rods, a clamping plate slidably connected to the top of the push plate, first bolts threaded to the left and right sides of the top of the push plate, a patterned anti-slip pad fixedly connected to the inner side of the clamping plate, and a worktable slidably connected to the outer wall of the threaded rod. A slide rail is provided on the top of the worktable. In this utility model, rotating the wrench drives the threaded rod to rotate, the transmission block drives the push plate to move towards the center through the groove, the bolts fix the clamping plate to the push plate, and the clamping plate has a patterned rubber pad, which can prevent slippage, reduce material damage, and achieve fixed clamping of the material, thus reducing damage to the material.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering technology, and in particular to a sheet metal processing fixture that is easy to position. Background Technology

[0002] Sheet metal parts, with their advantages of light weight, high strength, low cost, and easy mass production, are widely used in the electronics, automotive, communications, and medical device industries. During processing, they require cutting, bending, welding, and riveting. Precise positioning is the core prerequisite for ensuring the quality, dimensional accuracy, and assembly compatibility of each process step. Fixtures, as key positioning equipment, have a significant impact on processing efficiency and finished product quality. Traditional fixtures have fixed structures, requiring frequent changes of the corresponding fixture model for sheet metal parts of different lengths and shapes. For example, when processing short-sided sheet metal versus long strip sheet metal, differences in clamping spacing and positioning references necessitate machine downtime for fixture changes, extending auxiliary time and reducing production efficiency. This makes it difficult to adapt to the flexible production needs of small batches and multiple varieties. During clamping, the contact method between the fixture and the sheet metal part is singular, resulting in hard contact and localized stress concentration, easily leading to surface scratches and bending deformation. Especially for thin-walled, easily deformable sheet metal parts, unreasonable clamping force and contact structure can cause workpiece scrap and increase production costs.

[0003] In many fields of machining and assembly, clamping is an essential operation. In some machining operations, the workpiece is subjected to large forces or is in a state of high-speed movement. Without reliable clamping, the workpiece may fly out and cause injury to the operator. Clamping can firmly fix the workpiece, reduce the risk of hand operation, and ensure the personal safety of the operator. Reliable clamping can reduce the time spent adjusting and calibrating the workpiece during machining, so that the machining process can be carried out continuously and stably. In the existing technology, the screw clamping mechanism uses the principle of screw pair to clamp the workpiece by rotating the screw to push the nut and the pressure plate. It has good self-locking performance and is often used in manual clamping. The bench vise is a typical screw clamping device. However, the adjustment method of the jaws in this technology is not flexible enough. If the clamping force is too large or the jaws are severely worn, the mechanical fixture will damage the surface of the workpiece, such as producing scratches and indentations, affecting the appearance quality and functionality of the workpiece. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a sheet metal processing fixture that is easy to position, aiming to improve the problem that existing fixtures can damage the workpiece surface, produce scratches and indentations, and affect the appearance quality and functionality of the workpiece.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a sheet metal processing fixture for easy positioning, comprising a push plate, a transmission block fixedly connected to the bottom of the push plate, a threaded rod internally threaded to the transmission block, transmission rods fixedly connected to both ends of the threaded rod, partitions slidably connected to the outer sides of the left and right sides of the transmission rod, a wrench slidably connected to the outer right side of the transmission rod, a clamping plate slidably connected to the top of the push plate, first bolts threadedly connected to the left and right sides of the top of the push plate, a patterned anti-slip pad fixedly connected to the inner side of the clamping plate, a worktable slidably connected to the outer wall of the threaded rod, a slide rail provided on the top of the worktable, and an auxiliary mechanism provided on the top of the worktable for fixing the clamped items.

[0006] As a further description of the above technical solution: The auxiliary mechanism includes a slide groove, a slider is slidably connected inside the slide groove, limit blocks are fixedly connected to both the left and right sides of the slide groove, a nut seat is fixedly connected to the top of the slider, a threaded push rod is threadedly connected to the inner wall of the nut seat, a gripper base plate is threadedly connected to the bottom end of the threaded push rod, a second bolt is threadedly connected to the top left and right sides of the gripper base plate, a gripper is slidably connected to the outer wall of the second bolt, a spring is fixedly connected to the front side of the gripper, and fixing holes are opened on the top left and right sides of the gripper base plate.

[0007] As a further description of the above technical solution: The bottom of the workbench is fixedly connected to a support leg, and the bottom of the support leg is fixedly connected to a shock-absorbing pad.

[0008] As a further description of the above technical solution: A drawer is slidably connected to the front side of the workbench, and a handle is fixedly connected to the center of the front side of the drawer.

[0009] As a further description of the above technical solution: A limit hole is slidably provided on the right side of the worktable, and a limit strip is slidably connected to the right side of the worktable.

[0010] As a further description of the above technical solution: A nameplate is fixedly connected to the upper front side of the workbench, and a wrench sleeve is slidably connected to the outer wall of the wrench.

[0011] As a further description of the above technical solution: The outer side of the gripper is slidably connected to a soft rubber sleeve, and the top of the second bolt is slidably connected to an anti-slip sleeve.

[0012] As a further description of the above technical solution: The bottom of the limiting block is fixedly connected to the top of the worktable, and the bottom of the gripper is slidably connected to the top of the gripper base plate.

[0013] This utility model has the following beneficial effects: In this invention, rotating the wrench causes the transmission rod to rotate, which in turn drives the threaded rod to rotate. A groove is provided in the middle of the top of the worktable for the movement of the transmission block. Because the thread directions at both ends of the threaded rod are different, the transmission blocks at both ends of the outer end of the threaded rod drive the push plates on the left and right sides of the top of the worktable to move towards the middle through the groove. Threaded holes are provided at both ends of the top of the push plates, so that the first bolt fixes the clamping plate to the top of the push plate. Patterned rubber pads are also added to the clamping area of ​​the clamping plate, which can play a role in preventing slippage and reducing damage to the material. This achieves fixed clamping of the material, reducing damage to the material during manual operation.

[0014] In this invention, after the material is clamped, there is a sliding groove on the top of the worktable with a slider inside. Limiting blocks are provided on the left and right sides. A nut seat is fixed on the top of the slider. It can be pushed to move left and right. A threaded hole is provided on the front side of the gripper base plate for fixing the threaded push rod through the nut base to prevent it from falling off. There is a fixing hole on the top for fixing the gripper with a second bolt. When in use, rotating the threaded push rod causes the gripper base plate to push the gripper forward. There is a spring in the middle of the gripper to achieve multi-point and multi-directional clamping, fix irregularly shaped materials, and reduce the risk of material displacement during processing. Attached Figure Description

[0015] Figure 1 A perspective view of the front side of the worktable of a sheet metal processing fixture that facilitates positioning, as proposed in this utility model; Figure 2 A top perspective view of an auxiliary mechanism for a sheet metal processing fixture that facilitates positioning, as proposed in this utility model. Figure 3 This is a partial structural development view of the threaded rod of a sheet metal processing fixture that is easy to position, as proposed in this utility model. Figure 4 This utility model provides a structural diagram of an auxiliary mechanism for a sheet metal processing fixture that facilitates positioning. Figure 5 This is a partial structural diagram of an auxiliary mechanism for a sheet metal processing fixture that facilitates positioning, as proposed in this utility model. Figure 6 This is an unfolded view of the gripper structure of a sheet metal processing fixture that facilitates positioning, as proposed in this utility model.

[0016] Legend: 1. Push plate; 2. Auxiliary mechanism; 201. Slide groove; 202. Slider; 203. Nut seat; 204. Limit block; 205. Base plate; 206. Threaded push rod; 207. Clamping claw; 208. Spring; 209. Second bolt; 210. Fixing hole; 3. Workbench; 4. Threaded rod; 5. Transmission rod; 6. Wrench; 7. Transmission block; 8. Clamping plate; 9. First bolt; 10. Patterned rubber pad; 11. Washer; 12. Slide rail; 13. Support leg; 14. Shock-absorbing pad; 15. Drawer; 16. Handle; 17. Limit strip; 18. Nameplate; 19. Sleeve; 20. Anti-slip sleeve; 21. Limit hole; 22. Soft rubber sleeve. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see the appendix Figure 2 Appendix Figure 3 and attached Figure 4 An embodiment of this utility model provides a sheet metal processing fixture for easy positioning, including a push plate 1, a transmission block 7 fixedly connected to the bottom of the push plate 1, a threaded rod 4 threadedly connected to the inside of the transmission block 7, transmission rods 5 fixedly connected to both ends of the threaded rod 4, gaskets 11 slidably connected to the left and right sides of the transmission rod 5, a wrench 6 slidably connected to the right side of the transmission rod 5, a clamping plate 8 slidably connected to the top of the push plate 1, first bolts 9 threadedly connected to the left and right sides of the top of the push plate 1, a patterned rubber pad 10 fixedly connected to the inner side of the clamping plate 8, a worktable 3 slidably connected to the outer wall of the threaded rod 4, a slide rail 12 opened on the top of the worktable 3, and an auxiliary mechanism 2 provided on the top of the worktable 3 for fixing the clamped items; Specifically, the device mainly includes a push plate 1, which serves as the basic support component of the entire mechanism. A transmission block 7 is firmly fixed to its bottom by welding. The transmission block 7 has precision internal threads that perfectly match the external threads of the threaded rod 4 to achieve a threaded connection. A transmission rod 5 is welded to each end of the threaded rod 4, extending to the left and right sides respectively. Sliding washers 11 are provided on the outer sides of both sides of the transmission rod 5. These washers serve to limit and isolate movement. Notably, a wrench 6 is slidably connected to the outer right side of the transmission rod 5 for easy operation. The wrench 6 allows for easy control of the entire mechanism's movement. The top of the push plate 1 is slidably connected to the clamping plate 8. To fix the position of the clamping plate 8, a first bolt 9 is provided on each of the left and right sides of the top of the push plate 1. The fastening function is achieved through threaded connection. A specially designed patterned rubber pad 10 is glued and fixed to the inner side of the clamping plate 8. This anti-slip pad can effectively increase friction and prevent the clamped items from sliding. The outer wall of the threaded rod 4 is slidably connected to the worktable 3. A slide rail 12 is opened on its top for the transmission block 7 to move. The worktable 3 serves as the main working plane. An auxiliary mechanism 2 is welded and fixed to its top. This auxiliary mechanism 2 is specially used to cooperate with the main clamping mechanism to assist in fixing the items that need to be fixed, ensuring that the clamping process is more stable and reliable.

[0019] Please see the appendix Figure 4 Appendix Figure 5 and attached Figure 6 The auxiliary mechanism 2 includes a slide 201, a slider 202 is slidably connected inside the slide 201, limit blocks 204 are fixedly connected to the left and right sides of the slide 201, a nut seat 203 is fixedly connected to the top of the slider 202, a threaded push rod 206 is threadedly connected to the inner wall of the nut seat 203, a base plate 205 is threadedly connected to the bottom end of the threaded push rod 206, a second bolt 209 is threadedly connected to the top left and right sides of the base plate 205, a gripper 207 is slidably connected to the outer wall of the second bolt 209, a spring 208 is fixedly connected to the front side of the gripper 207, and a fixing hole 210 is opened on the top left and right sides of the base plate 205. Specifically, the auxiliary mechanism 2 mainly consists of a slide groove 201 and its supporting components. The slide groove 201 and the slider 202 form a precise sliding fit, allowing the slider 202 to slide smoothly within the slide groove 201. A nut seat 203 is fixedly installed on its top via a high-strength connection. The nut seat 203 has precision threads machined inside, forming a reliable threaded transmission connection with the threaded push rod 206. To ensure operational safety, limit blocks 204 are welded to both the left and right sides of the slide groove 201. These limit blocks 204 are made of wear-resistant material and can effectively prevent the slider 202 from sliding. 02 Slide out of the working range. The lower end of the threaded push rod 206 is also provided with a threaded structure, forming an adjustable connection with the base plate 205. A set of mounting holes is provided on each of the left and right symmetrical positions on its top. The connection with the gripper 207 is achieved by the second bolt 209. A high-performance spring 208 is installed on the front side of the gripper 207 to ensure the smoothness of the clamping action. In addition, the top side of the base plate 205 is also machined with a precise positioning fixing hole 210 for auxiliary installation and positioning. The entire auxiliary mechanism 2 achieves a stable and reliable clamping function through the precise cooperation between the components.

[0020] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 4 The bottom of the workbench 3 is fixedly connected to a support leg 13, and the bottom of the support leg 13 is fixedly connected to a shock-absorbing pad 14. The front side of the workbench 3 is slidably connected to a drawer 15. The right side of the workbench 3 is slidably opened with a limit hole 21. The right side of the workbench 3 is slidably connected to a limit strip 17. The front middle of the drawer 15 is fixedly connected to a handle 16. Specifically, each of the four corners of the bottom of the workbench 3 is fixedly connected with a support leg 13, which is made of high-strength metal. The bottom of the support leg 13 is fixedly connected to a rubber shock-absorbing pad 14 by bolts, which can effectively buffer the vibration generated during operation. The drawer 15 is slidably connected to the front interior of the workbench 3 in the horizontal direction. The drawer 15 slides flexibly and smoothly. A row of equidistant limiting holes 21 is opened on the right side panel of the workbench 3 in the vertical direction. A limiting strip 17 is also slidably connected to the right side of the workbench 3. The limiting strip 17 can prevent accidental contact from affecting the clamping by inserting into the limiting hole 21. A U-shaped handle 16 is welded to the middle of the front side of each drawer 15. The surface of the handle 16 is treated with anti-slip treatment to facilitate opening the drawer 15.

[0021] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 5 A nameplate 18 is fixedly connected to the upper front side of the workbench 3. A sleeve 19 is slidably connected to the outer wall of the wrench 6. A soft rubber sleeve 22 is slidably connected to the outside of the gripper 207. An anti-slip sleeve 20 is slidably connected to the top of the second bolt 209. The bottom of the limit block 204 is fixedly connected to the top of the workbench 3. The bottom of the gripper 207 is slidably connected to the top of the base plate 205.

[0022] Specifically, a nameplate 18 is securely connected to the upper front of the workbench 3 by bolts. The nameplate 18 is engraved with the product model and parameter information. A sleeve 19 is tightly slidably attached to the metal outer wall of the wrench 6. The sleeve 19 is made of wear-resistant rubber. A soft rubber sleeve 22 is detachably slidably fitted on the outside of the gripper 207 to prevent slippage and provide protection. An anti-slip threaded sleeve 20 is precisely slidably fitted to the top of the second bolt 209. This anti-slip sleeve is made of engineering plastic. The bottom of the limit block 204 is fixedly connected to the top of the workbench 3 by welding to ensure structural stability. The bottom of the gripper 207 is fixedly connected to the top of the base plate 205 by threads to ensure clamping stability.

[0023] Working principle: By rotating the wrench 6, the transmission rod 5 rotates, driving the threaded rod 4 to rotate. A slide rail 12 is provided in the middle of the top of the workbench 3 for the movement of the transmission block 7. Since the thread directions at both ends of the threaded rod 4 are different, the transmission blocks 7 at both ends of the threaded rod 4 drive the push plates 1 on the left and right sides of the top of the workbench 3 to move towards the middle through the slide rail 12. The push plates 1 have threaded holes at both ends of the top, so that the first bolt 9 fixes the clamping plate 8 to the top of the push plate 1. A patterned rubber pad 10 is also added to the clamping area of ​​the clamping plate 8, which can play a role in anti-slip and reduce damage to the material, thus realizing the fixed clamping of the material. Manual operation reduces damage to the material.

[0024] After the material is clamped, slide grooves 201 are fixed on both the front and rear sides of the top of the workbench 3. A slider 202 is located inside the slide groove 201. Limit blocks 204 are fixed on both the left and right sides of the slide groove 201 to prevent the slider 202 from sliding out of the slide groove 201 during excessive sliding. A nut seat 203 is fixed on the top of the slider 202; pushing the nut seat 203 allows for left or right movement. A threaded hole is provided on the front side of the base plate 205 for the threaded push rod 206 to be fixed to the base plate 205 via the nut seat 203, preventing... The bottom of the base plate 205 is not supported and will fall. Fixing holes 210 are provided on the left and right sides of the top of the base plate 205 for the second bolt 209 to fix the gripper 207 to the top of the base plate 205. In use, the base plate 205 can be pushed by rotating the threaded push rod 206, thereby pushing the gripper 207 to move forward. A spring 208 is fixed in the middle of the gripper 207, realizing multi-point and multi-directional clamping, fixing irregular materials at multiple points, reducing the risk of material displacement during processing, and ensuring accuracy and efficiency.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sheet metal processing fixture for easy positioning, comprising a push plate (1), characterized in that: The bottom of the push plate (1) is fixedly connected to a transmission block (7), the inside of the transmission block (7) is threadedly connected to a threaded rod (4), the two ends of the threaded rod (4) are fixedly connected to a transmission rod (5), the left and right ends of the transmission rod (5) are slidably connected to a partition (11), the top of the transmission rod (5) is slidably connected to a wrench (6), the top of the push plate (1) is slidably connected to a clamping plate (8), the top left and right sides of the push plate (1) are threadedly connected to a first bolt (9), the inner side of the clamping plate (8) is fixedly connected to a patterned anti-slip pad (10), the outer wall of the threaded rod (4) is slidably connected to a workbench (3), the top of the workbench (3) is provided with a slide rail (12), the top of the workbench (3) is provided with an auxiliary mechanism (2), the auxiliary mechanism (2) is used to fix the clamped items.

2. The sheet metal workpiece fixture of claim 1, wherein: The auxiliary mechanism (2) includes a slide groove (201), a slider (202) is slidably connected inside the slide groove (201), limit blocks (204) are fixedly connected to both the left and right sides of the slide groove (201), a nut seat (203) is fixedly connected to the top of the slider (202), a threaded push rod (206) is threadedly connected to the inner wall of the nut seat (203), a gripper base plate (205) is threadedly connected to the bottom end of the threaded push rod (206), a second bolt (209) is threadedly connected to both the left and right sides of the top of the base plate (205), a gripper (207) is slidably connected to the outer wall of the second bolt (209), a spring (208) is fixedly connected to the front side of the gripper (207), and a fixing hole (210) is opened on both the left and right sides of the top of the base plate (205).

3. The sheet metal workpiece fixture of claim 1, wherein: The bottom of the workbench (3) is fixedly connected to a support leg (13), and the bottom of the support leg (13) is fixedly connected to a shock-absorbing pad (14).

4. The sheet metal workpiece fixture of claim 1, wherein: The workbench (3) has a drawer (15) slidably connected to the front side inside, and a handle (16) is fixedly connected to the middle of the front side of the drawer (15).

5. The sheet metal workpiece fixture of claim 1, wherein: A limiting hole (21) is slidably opened on the right side of the workbench (3), and a limiting strip (17) is slidably connected to the right side of the workbench (3).

6. The sheet metal workpiece fixture of claim 1, wherein: A nameplate (18) is fixedly connected to the upper front side of the workbench (3), and a sleeve (19) is slidably connected to the outer wall of the wrench (6).

7. The sheet metal workpiece fixture of claim 2, wherein: The outer side of the gripper (207) is slidably connected to a soft rubber sleeve (22), and the top of the second bolt (209) is slidably connected to an anti-slip sleeve (20).

8. The sheet metal workpiece fixture of claim 2, wherein: The bottom of the limiting block (204) is fixedly connected to the top of the worktable (3), and the bottom of the gripper (207) is slidably connected to the top of the base plate (205).

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