A positioning mechanism for die cutting

Abstract

The utility model relates to a die -cutting part positioning device technical field, and disclose a kind of positioning mechanism for hardware die -cutting, positioning mechanism ontology includes base, clamping structure and compression structure, the four corners of base are provided with bolt hole, the short side of base is provided with the fixed plate for installation, the surface of fixed plate is opened and is provided with through -hole, support plate is also installed on the long side of base, the surface of base is fixedly connected with the guide rail of symmetry, the center position of base is opened and is provided with a clearance, clamping structure is slidably installed on the guide rail, compression structure is rotatably connected on the surface of support plate, by the clamping and compression structure combination of multiple clamping surface and spring force, the quick, stable and multidirectional positioning of workpiece is realized, effectively improve the clamping efficiency and reliability.

Description

Technical Field

[0001] This utility model relates to the technical field of punching part positioning devices, specifically a positioning mechanism for hardware punching. Background Technology

[0002] In metal stamping production, precise positioning is the key to ensuring product quality.

[0003] Currently, common positioning devices suffer from slow positioning speed and poor positioning stability during use. For example, a positioning device for stamping hardware parts disclosed in publication number CN222970805U includes a base plate and a top plate. Two side plates are fixed on both the base plate and the top plate. A telescopic rod is installed between the two side plates by screws. A horizontal plate is fixed on one side of the base plate. A threaded rod is set on the horizontal plate. A ring is sleeved on the threaded rod. A positioning plate is installed on one side of the ring. A slide is opened on the base plate. A first threaded hole is opened inside the slide. A bolt is fitted between the positioning plate and the first threaded hole.

[0004] As can be seen from the above-mentioned publicly available scheme, the positioning device moves the positioning plate by rotating the threaded rod, and then uses bolts to lock the positioning plate in the slide of the base plate. Although this method can achieve positioning, it has obvious defects: First, each adjustment requires manual rotation of the threaded rod for coarse adjustment, and then using tools to tighten the bolts for locking. The operation steps are cumbersome and time-consuming, which cannot meet the needs of efficient production; Second, its positioning plate can only provide unidirectional lateral pushing pressure and cannot perform multi-directional positioning, resulting in poor positioning stability. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a positioning mechanism for metal punching, thereby solving the problems of low operating efficiency and poor positioning stability of existing positioning mechanisms.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a positioning mechanism for metal punching, comprising a positioning mechanism body, the positioning mechanism body including a base, a clamping structure, and a pressing structure. Bolt holes are provided at the four corners of the base. A fixing plate for installation is provided on the short side of the base. Through holes are opened on the surface of the fixing plate. A support plate is also installed on the long side of the base. Symmetrical guide rails are fixedly connected to the surface of the base. An clearance hole is opened at the center of the base. The clamping structure is slidably installed on the guide rails. The pressing structure is rotatably connected to the surface of the support plate. Through the first, second, and third clamping surfaces provided on the clamping structure, different workpiece surfaces can be fitted together. Simultaneously, the dual positioning of horizontal clamping and vertical pressing makes the positioning more stable and reliable. Furthermore, the first and second springs provided in the clamping and pressing structures make it faster and more convenient for workers to position and disassemble workpieces, improving work efficiency.

[0007] Preferably, the clamping structure includes a clamping plate, an adjusting screw, a first spring, and a limiting nut. The clamping plate has a first clamping surface, a second clamping surface, and a third clamping surface on the side facing the workpiece. The clamping plate has a guide groove that cooperates with the guide rail for lateral positioning and clamping of the workpiece.

[0008] Preferably, the clamping structure includes a clamping plate, a longitudinal adjusting rod, a connecting block, a transverse adjusting rod, a rotating block, and a rotating rod. The lower surface of the clamping plate is provided with an anti-slip pad for applying a vertical clamping force to the workpiece.

[0009] Preferably, the adjusting screw passes through the through hole and is connected to the clamping plate via a bearing. The first spring is sleeved on the adjusting screw and provides an elastic restoring force that causes the clamping plate to move away from the workpiece. The first spring can automatically clamp the clamping plate through its elastic force.

[0010] Preferably, the longitudinal adjusting rod is threadedly engaged with the connecting block, the transverse adjusting rod is threadedly engaged with the rotating block, and the rotating block is fixedly connected to the rotating rod. The longitudinal adjusting rod and the transverse adjusting rod can adjust the horizontal position and pressing height of the pressing plate.

[0011] Preferably, the surface of the support plate is covered with a rubber sleeve, the inner wall of the rubber sleeve is movably connected to the rotating rod, and a second spring is fitted on the rotating rod, the second spring causing the pressing plate to automatically press down through its elastic force.

[0012] Preferably, the limiting nut is threaded onto the adjusting screw, and the limiting nut can limit the movement of the adjusting clamp.

[0013] Compared with the prior art, this utility model provides a positioning mechanism for metal punching, which has the following advantages: The first, second, and third clamping surfaces on the clamping structure allow for contact with different workpiece surfaces. The dual positioning of horizontal clamping and vertical pressing makes the positioning more stable and reliable. Furthermore, the first and second springs in the clamping and pressing structures enable workers to position and disassemble workpieces more quickly and conveniently, thus improving work efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the clamping structure of this utility model; Figure 3 This is a schematic diagram of the clamping structure of this utility model; Figure 4 This is a schematic diagram of the base structure of this utility model; Figure 5 yes Figure 3 A schematic diagram of the clamping plate structure.

[0015] In the diagram: 1. Positioning mechanism body; 2. Base; 21. Fixing plate; 22. Through hole; 23. Support plate; 24. Rubber sleeve; 25. Clearance hole; 26. Guide rail; 27. Bolt hole; 3. Clamping structure; 31. Clamping plate; 32. First clamping surface; 33. Second clamping surface; 34. Third clamping surface; 35. Bearing; 36. Adjusting screw; 37. First spring; 38. Limiting nut; 39. Guide groove; 4. Pressing structure; 41. Pressing plate; 42. Anti-slip pad; 43. Longitudinal adjusting rod; 44. Connecting block; 45. Lateral adjusting rod; 46. Rotating block; 47. Rotating rod; 48. Second spring. Detailed Implementation

[0016] 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.

[0017] This utility model provides a technical solution: a positioning mechanism for metal punching, comprising a positioning mechanism body 1, which includes a base 2, a clamping structure 3, and a pressing structure 4. The base 2 serves as the mounting foundation and is bolted to the punch press worktable via bolt holes 27. The clamping structure 3 allows for quick adjustment of the clamping position by rotating the adjusting limit nut 38, and, in conjunction with the reset action of the first spring 37, facilitates the insertion and removal of the workpiece. The pressing structure 4 achieves rapid alignment through a longitudinal adjusting rod 43 and a transverse adjusting rod 45, and utilizes a second spring 48 to provide continuous elastic pressing force. This structure ensures both pressing effect and avoids damage to the workpiece caused by rigid impact, integrating lateral positioning and vertical pressing functions into one unit. The adjustment steps are simple and clear, significantly improving efficiency. It reduces the workpiece clamping and positioning time, and is particularly suitable for flexible production scenarios with multiple varieties and small batches. Bolt holes 27 are provided at the four corners of the base 2. A fixing plate 21 for installation is provided on the short side of the base 2. Through holes 22 are opened on the surface of the fixing plate 21. A support plate 23 is also installed on the long side of the base 2. Symmetrical guide rails 26 are fixedly connected to the surface of the base 2. An clearance hole 25 is opened at the center of the base 2. The clearance hole 25 provides space for the stamping process. The clamping structure 3 is slidably installed on the guide rail 26. The pressing structure 4 is rotatably connected to the surface of the support plate 23.

[0018] The clamping structure 3 includes a clamping plate 31, an adjusting screw 36, a first spring 37, and a limiting nut 38. The clamping plate 31 has a first clamping surface 32, a second clamping surface 33, and a third clamping surface 34 on the side facing the workpiece. The working surface of the clamping plate 31 is designed with three clamping surfaces at an angle to each other, forming a positioning angle to reliably position the two sides of the workpiece. At the same time, it can clamp workpieces with different shaped surfaces. The clamping plate 31 has a guide groove 39 that cooperates with the guide rail 26 for lateral positioning and clamping of the workpiece. The adjusting screw 36 passes through the through hole 22 and is connected to the clamping plate 31 through a bearing 35. The first spring 37 is sleeved on the adjusting screw 36 and provides an elastic restoring force that makes the clamping plate 31 tend to move away from the workpiece. The first spring 37 can drive the clamping plate 31 to clamp automatically through its elastic force.

[0019] The clamping structure 4 includes a clamping plate 41, a longitudinal adjusting rod 43, a connecting block 44, a transverse adjusting rod 45, a rotating block 46, and a rotating rod 47. The lower surface of the clamping plate 41 is provided with an anti-slip pad 42 for applying a vertical clamping force to the workpiece. The longitudinal adjusting rod 43 is threadedly engaged with the connecting block 44, and the transverse adjusting rod 45 is threadedly engaged with the rotating block 46. The rotating block 46 is fixedly connected to the rotating rod 47. The longitudinal adjusting rod 43 and the transverse adjusting rod 45 can adjust the horizontal position and clamping height of the clamping plate 41.

[0020] A rubber sleeve 24 is fitted on the surface of the support plate 23. The inner wall of the rubber sleeve 24 is movably connected to the rotating rod 47. A second spring 48 is fitted on the rotating rod 47. The second spring 48 causes the pressing plate 41 to automatically press through its elastic force. The limiting nut 38 is threadedly connected to the adjusting screw 36. The limiting nut 38 can limit the movement stroke of the adjusting clamp 31.

[0021] The working principle of this device is as follows: When in use, first install and fix the mechanism through the base 2. According to the size of the workpiece, rotate the limiting nut 38 of the clamping structure 3 to pre-adjust the clamping size of the clamping plate 31. Place the workpiece in so that its two adjacent sides are close to the first clamping surface 32 and the second clamping surface 33 (or the third clamping surface 34) of the clamping plate 31. Then, tighten the limiting nut 38 again. The clamping surface will accurately position and clamp the workpiece in the horizontal plane. Finally, adjust the longitudinal adjusting rod 43 and the transverse adjusting rod 45 of the pressing structure 4 so that the anti-slip pad 42 under the pressing plate 41 is aligned with the area to be pressed of the workpiece. Press down the pressing plate 41 until the second spring 48 is compressed. Use the spring force to flexibly press the workpiece onto the working surface of the base. At this point, the workpiece is reliably fixed in both the horizontal and vertical directions and can be punched.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover 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 process, method, article, or apparatus.

[0023] 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 to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning mechanism for metal punching, comprising a positioning mechanism body (1), characterized in that: The positioning mechanism body (1) includes a base (2), a clamping structure (3) and a pressing structure (4). Bolt holes (27) are provided at the four corners of the base (2). A fixing plate (21) for installation is provided on the short side of the base (2). A through hole (22) is opened on the surface of the fixing plate (21). A support plate (23) is also installed on the long side of the base (2). A symmetrical guide rail (26) is fixedly connected to the surface of the base (2). An avoidance hole (25) is opened at the center of the base (2). The clamping structure (3) is slidably installed on the guide rail (26). The pressing structure (4) is rotatably connected to the surface of the support plate (23).

2. The positioning mechanism for metal punching according to claim 1, characterized in that: The clamping structure (3) includes a clamping plate (31), an adjusting screw (36), a first spring (37), and a limiting nut (38). The clamping plate (31) has a first clamping surface (32), a second clamping surface (33), and a third clamping surface (34) on the side facing the workpiece. The clamping plate (31) has a guide groove (39) that cooperates with the guide rail (26).

3. The positioning mechanism for metal punching according to claim 1, characterized in that: The pressing structure (4) includes a pressing plate (41), a longitudinal adjusting rod (43), a connecting block (44), a transverse adjusting rod (45), a rotating block (46), and a rotating rod (47). The lower surface of the pressing plate (41) is provided with an anti-slip pad (42).

4. A positioning mechanism for metal punching according to claim 2, characterized in that: The adjusting screw (36) passes through the through hole (22) and is connected to the clamping plate (31) via a bearing (35). The first spring (37) is sleeved on the adjusting screw (36) and provides an elastic restoring force that causes the clamping plate (31) to tend away from the workpiece.

5. A positioning mechanism for metal punching according to claim 3, characterized in that: The longitudinal adjusting rod (43) is threadedly engaged with the connecting block (44), the transverse adjusting rod (45) is threadedly engaged with the rotating block (46), and the rotating block (46) is fixedly connected with the rotating rod (47).

6. A positioning mechanism for metal punching according to claim 5, characterized in that: The surface of the support plate (23) is fitted with a rubber sleeve (24), the inner wall of the rubber sleeve (24) is movably connected to the rotating rod (47), and a second spring (48) is fitted on the rotating rod (47).

7. A positioning mechanism for metal punching according to claim 2, characterized in that: The limiting nut (38) is threaded onto the adjusting screw (36).

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