A distance adjusting device for a punch press

Abstract

The application discloses a distance adjusting device for a punch press and relates to the technical field of punch press distance adjusting. The distance adjusting device for the punch press comprises a rack, a top column is slidably connected to the rack, the top column is used for being fixedly connected with a lower die, a jacking driving mechanism connected to the top column is further arranged on the rack, and the jacking driving mechanism is used for driving the top column to ascend and descend so as to drive the lower die to ascend and descend; and a locking mechanism is further arranged on the rack and is used for locking the position of the lower die. The application can conveniently adjust the position of the lower die.

Description

Technical Field

[0001] This application relates to the field of punch press spacing adjustment, and more particularly to a spacing adjustment device for a punch press. Background Technology

[0002] In modern industrial production, punch presses, as important stamping equipment, are widely used in metal processing, parts manufacturing, and other fields. Punch presses primarily use the cooperation of upper and lower dies to stamp and form materials such as sheet metal into the desired parts. During the operation of a punch press, the stamping depth is a key process parameter that directly affects the quality and precision of the stamped parts. To meet different production needs, it is sometimes necessary to adjust the position of the lower die, i.e., its height, to adjust the stamping depth. Currently, for existing punch press structures on the market, the position adjustment of the lower die is mostly done manually. Operators need to use a lifting device to lift the lower die and then use screws to lock it in place to adjust its position. This method is not only inefficient and consumes a lot of manpower and time, but also makes it difficult to guarantee the adjustment accuracy, easily affected by the operator's subjective factors, and fails to meet the requirements of high-precision stamping production. Utility Model Content

[0003] To facilitate the adjustment of the lower die position, this application provides a distance adjustment device for a punch press.

[0004] The adjustment device for a punch press provided in this application adopts the following technical solution:

[0005] A distance adjustment device for a punch press includes a frame, on which a top column is slidably connected. The top column is fixedly connected to a lower die. The frame is also provided with a lifting drive mechanism connected to the top column, which drives the top column to rise and fall, thereby driving the lower die to rise and fall. The frame is also provided with a locking mechanism, which locks the position of the lower die.

[0006] By adopting the above technical solution, the lower die can be moved up and down by driving the lifting drive mechanism to adjust the position of the lower die, while the locking mechanism can lock the lower die to prevent it from moving accidentally during stamping.

[0007] In one specific implementation, multiple top columns are provided, arranged in a circular manner, and each top column is connected to a lifting drive mechanism, which is used to drive the multiple top columns to rise and fall synchronously.

[0008] By adopting the above technical solution, using multiple top pillars to lift the lower mold can make the lower mold move more stably.

[0009] In one specific implementation scheme, the lifting drive mechanism includes multiple linkage rods, each linkage rod being connected to a corresponding top column, and each linkage rod having a threaded connection portion. A connecting gear is rotatably connected to each threaded connection portion on the frame, and each connecting gear includes a threaded engagement portion on its inner wall, the threaded engagement portion connecting to the corresponding threaded connection portion. The frame is also rotatably connected to a transmission gear ring, which meshes with each connecting gear. The transmission gear ring is also connected to a drive assembly.

[0010] By adopting the above technical solution, the drive assembly can drive the transmission gear ring to rotate, thereby driving multiple connecting gears to rotate and then driving multiple linkage rods to rise and fall. At this time, multiple top columns are driven to rise and fall.

[0011] In one specific implementation, the actuating component includes a drive shaft rotatably connected to the frame, a drive gear mounted on the drive shaft, the drive gear meshing with a drive ring gear, a worm gear that can rotate with the drive shaft connected to the drive shaft, a worm meshing with the worm gear on the frame, the worm gear being self-locking, and a feed component connected to the worm.

[0012] By adopting the above technical solution, the drive unit can drive the worm to rotate, thereby driving the worm wheel to rotate and then inputting power to the transmission gear ring.

[0013] In one specific implementation, the locking mechanism includes a connecting block fixedly connected to the lower mold, an installation groove is opened at the top of the frame, the connecting block is slidably connected to the installation groove, a receiving groove is opened on the inner wall of the installation groove, a hydraulic expansion component is installed in the receiving groove, and the hydraulic expansion component is connected to a liquid inlet pipe.

[0014] By adopting the above technical solution, after the lower mold is adjusted, liquid is supplied into the liquid inlet pipe to cause the liquid expansion component to expand and clamp the connecting block to prevent the lower mold from shifting.

[0015] In one specific implementation scheme, a spring is provided in the mounting groove, with one end of the spring connected to the lower end of the connecting block and the other end connected to the bottom end of the mounting groove.

[0016] In one specific implementation, the frame is provided with a cushioning pad for buffering the lower mold.

[0017] By adopting the above technical solution, when the lower die moves downward, both the spring and the buffer pad are used to reduce the force of the lower die rigidly impacting the frame downward.

[0018] In one specific implementation, the cushioning pad is a rubber cushioning pad.

[0019] In summary, this application includes at least one of the following beneficial technical effects:

[0020] 1. The lower die can be moved up and down by driving the lifting mechanism to adjust its position, while the locking mechanism can lock the lower die to prevent it from moving accidentally during stamping.

[0021] 2. After the lower mold is adjusted, supplying liquid into the inlet pipe will cause the hydraulic expansion component to expand and clamp the connecting block to prevent the lower mold from shifting.

[0022] 3. When the lower die moves downward, both the spring and the buffer pad are used to reduce the force of the lower die rigidly impacting the frame downward. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a distance adjustment device for a punch press according to an embodiment of this application.

[0024] Figure 2 This is a front sectional view of a distance adjustment device for a punch press according to an embodiment of this application.

[0025] Figure 3 This is a structural diagram used to illustrate the lifting drive mechanism.

[0026] Figure 4 It is a structural diagram used to illustrate the moving component.

[0027] Figure 5 yes Figure 2 Enlarged view of section A.

[0028] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Top column; 12. Guide column; 13. Buffer pad; 14. Mounting groove; 15. Receiving groove; 2. Lower mold; 21. Guide hole; 22. Buffer mating groove; 3. Lifting drive mechanism; 31. Linkage rod; 311. Threaded connection part; 32. Connecting gear; 321. Threaded mating part; 33. Transmission gear ring; 34. Feeding assembly; 341. Transmission shaft; 342. Worm gear; 343. Worm; 344. Transmission gear; 35. Feeding component; 4. Locking mechanism; 41. Connecting block; 42. Hydraulic expansion component; 43. Liquid inlet pipe; 44. Spring. Detailed Implementation

[0029] The present application will be further described in detail below with reference to the accompanying drawings.

[0030] This application discloses a spacing adjustment device for a punch press. It is used to automatically adjust the position of the lower die while ensuring accurate positioning.

[0031] Reference Figure 1 and Figure 2A distance adjustment device for a punch press includes a frame 1, on which a plurality of top columns 11 are slidably connected. In this embodiment, there are four top columns 11, which are evenly arranged around each other. The four top columns 11 are fixedly connected to a lower die 2. The frame 1 is also provided with a lifting drive mechanism 3 connected to the top columns 11. The lifting drive mechanism 3 is used to drive the top columns 11 to rise and fall, thereby driving the lower die 2 to rise and fall. The frame 1 is also provided with a locking mechanism 4 connected to the lower die 2. The locking mechanism 4 is used to lock the position of the lower die 2 to prevent the lower die 2 from moving accidentally during operation.

[0032] Reference Figure 2 and Figure 3 The lifting drive mechanism 3 includes multiple linkage rods 31, each linkage rod 31 is connected to a corresponding top column 11, and each linkage rod 31 has a threaded connection part 311. A connecting gear 32 is rotatably connected to each threaded connection part 311 on the frame 1. Each connecting gear 32 includes a threaded mating part 321 on the inner wall, which is connected to the corresponding threaded connection part 311. The rotation of the connecting gear 32 can drive the linkage rod 31 to move up and down. The frame 1 is also rotatably connected to a transmission gear ring 33, which meshes internally with each connecting gear 32. The transmission gear ring 33 is also connected to a drive assembly 34.

[0033] Reference Figure 3 and Figure 4 Specifically, the drive assembly 34 includes a drive shaft 341 connected to the frame 1. The drive shaft 341 is vertically arranged, and a drive gear 344 that can rotate with it is mounted on the drive shaft 341. The drive gear 344 meshes with the drive gear ring 33. A worm gear 342 that can rotate with it is connected to the drive shaft 341. The frame 1 is also provided with a worm 343 that meshes with the worm gear 342. The worm gear 342 and worm 343 can be self-locking. The worm 343 is connected to a drive component 35, which is preferably a motor.

[0034] The drive unit 35 drives the worm gear 343 to rotate, which in turn drives the worm wheel 342, the transmission gear ring 33 and the connecting gear 32 to rotate. The rotation of the connecting gear 32 can drive the linkage rod 31 to move up and down, which in turn drives the lower mold 2 to move up and down through the top column 11. At this time, the position of the lower mold 2 is automatically fine-tuned.

[0035] Reference Figure 1 and Figure 2 In order to guide the movement of the lower mold 2, the frame 1 is provided with a guide post 12, which is arranged along the thickness direction of the lower mold 2. The lower mold 2 is provided with a guide hole 21, and the guide post 12 is slidably connected to the guide hole 21.

[0036] Reference Figure 2 and Figure 5To cushion the lower mold 2 and prevent it from rigidly impacting the frame 1 during downward movement, a buffer pad 13 is provided at the upper end of the frame 1. A buffer groove 22 is formed at the lower end of the lower mold 2, and the buffer pad 13 is located below the buffer groove 22. When the lower mold 2 moves downward, the buffer groove 22 impacts the buffer pad 13, thus cushioning the lower mold 2. Specifically, the buffer pad 13 is made of rubber.

[0037] Reference Figure 2 The locking mechanism 4 includes a connecting block 41 fixedly connected to the lower mold 2. The top of the frame 1 has an installation groove 14. The connecting block 41 is slidably connected to the installation groove 14. The inner wall of the installation groove 14 has a receiving groove 15. The receiving groove 15 is equipped with a hydraulic expansion component 42. The hydraulic expansion component 42 is connected to a liquid inlet pipe 43. The liquid inlet pipe 43 extends to the external environment. After the liquid is supplied to the hydraulic expansion component 42 by an external liquid supply device, the hydraulic expansion component 42 can expand and press against the connecting block 41, thereby preventing the connecting block 41 from moving accidentally, i.e., the lower mold 2 from moving accidentally.

[0038] Reference Figure 1 In order to further buffer the downward movement of the lower mold 2, a spring 44 is provided in the mounting groove 14. The upper end of the spring 44 is connected to the lower end of the connecting block 41, and the lower end of the spring 44 is connected to the bottom end of the mounting groove 14.

[0039] The implementation principle of the adjustment device for a punch press in this application embodiment is as follows: the drive feeder 35 drives the worm gear 343 to rotate, thereby driving the worm wheel 342, the transmission gear ring 33 and the connecting gear 32 to rotate. The rotation of the connecting gear 32 will drive the linkage rod 31 to move up and down, thereby driving the lower die 2 to move up and down through the top column 11. Then, an external liquid supply device is used to supply liquid to the liquid inlet pipe 43, so that the liquid expansion member 42 expands and presses the connecting block 41 to prevent the connecting block 41 from moving erroneously, i.e., the lower die 2 from moving erroneously. At this time, the position adjustment of the lower die 2 is completed.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A distance adjustment device for a punch press, characterized in that: The device includes a frame (1), on which a top column (11) is slidably connected. The top column (11) is used to be fixedly connected to the lower mold (2). The frame (1) is also provided with a lifting drive mechanism (3) connected to the top column (11). The lifting drive mechanism (3) is used to drive the top column (11) to rise and fall, thereby driving the lower mold (2) to rise and fall. The frame (1) is also provided with a locking mechanism (4). The locking mechanism (4) is used to lock the position of the lower mold (2).

2. The adjusting device for a punch press according to claim 1, characterized in that: The top column (11) is provided in multiple ways, and the multiple top columns (11) are arranged around each other. The multiple top columns (11) are all connected to the lifting drive mechanism (3). The lifting drive mechanism (3) is used to drive the multiple top columns (11) to rise and fall synchronously.

3. The adjusting device for a punch press according to claim 2, characterized in that: The lifting drive mechanism (3) includes multiple linkage rods (31), each linkage rod (31) is connected to a top column (11), each linkage rod (31) has a threaded connection part (311), and a connecting gear (32) is rotatably connected to each threaded connection part (311) on the frame (1). Each connecting gear (32) includes a threaded engagement part (321) on its inner wall, and the threaded engagement part (321) is connected to the corresponding threaded connection part (311). The frame (1) is also rotatably connected to a transmission gear ring (33), which meshes with each connecting gear (32). The transmission gear ring (33) is also connected to a drive assembly (34).

4. The adjusting device for a punch press according to claim 3, characterized in that: The drive assembly (34) includes a drive shaft (341) rotatably connected to the frame (1), a drive gear (344) is mounted on the drive shaft (341), the drive gear (344) meshes with the drive ring (33), a worm gear (342) that can rotate together is connected to the drive shaft (341), and a worm (343) that meshes with the worm gear (342) is also provided on the frame (1). The worm gear (342) and the worm (343) can be self-locking, and the worm (343) is connected to a drive component (35).

5. The adjusting device for a punch press according to claim 1, characterized in that: The locking mechanism (4) includes a connecting block (41) fixedly connected to the lower mold (2), and a mounting groove (14) is opened at the top of the frame (1). The connecting block (41) is slidably connected to the mounting groove (14). A receiving groove (15) is opened on the inner wall of the mounting groove (14). A hydraulic expansion component (42) is installed in the receiving groove (15). The hydraulic expansion component (42) is connected to a liquid inlet pipe (43).

6. The adjusting device for a punch press according to claim 5, characterized in that: A spring (44) is provided in the mounting groove (14). One end of the spring (44) is connected to the lower end of the connecting block (41), and the other end is connected to the bottom end of the mounting groove (14).

7. The adjusting device for a punch press according to claim 1, characterized in that: The frame (1) is provided with a buffer pad (13) for buffering the lower mold (2).

8. The adjusting device for a punch press according to claim 7, characterized in that: The buffer pad (13) is a rubber buffer pad (13).

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