Limiting device for multi-station punching machine
By designing a limit setting frame and a speed regulating gear limit device on a multi-station punch press, the problems of punch offset and complex speed regulation are solved, and precise control of the punch and efficient stamping are achieved.
Patent Information
- Application Number
- CN202520374275.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-04
AI Technical Summary
Existing multi-station punch press limit devices suffer from problems such as punch misalignment, insufficient punching adjustment accuracy, and complex speed control processes, which affect the accuracy of punching.
Design a limiting device including a limiting setting frame, a limiting connecting frame, and a speed regulating gear. Through the cooperation of the limiting groove and the speed regulating gear, the moving path and lifting speed of the punch can be precisely controlled. Combined with a calibration camera and a proximity sensor, the accuracy of stamping control can be improved.
It enables accurate positioning and speed adjustment of the punch, improves the accuracy and efficiency of stamping, and ensures precise stamping of workpieces.
Smart Images

Figure CN223916438U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of punch press parts design technology, and more specifically, to a limiting device for a multi-station punch press. Background Technology
[0002] A punch press is essentially a stamping press. In current applications, punch presses offer advantages such as energy saving, low operational requirements, and a wide range of product output, leading to their increasingly widespread use. Existing multi-station punch presses typically control the punch to stamp workpieces via a pusher device. During operation, the punch may deviate, preventing it from moving to the accurate position, or it may over-punch or under-press. Existing limiting devices may suffer from insufficient stamping adjustment precision and complex speed control processes, affecting the accuracy of punching. Therefore, a limiting device for multi-station punch presses is proposed. Utility Model Content
[0003] (a) Technical problems to be solved
[0004] To address at least one of the aforementioned problems, this invention first provides a limiting device for a multi-station punch press, which can limit the movement path of the punch and, in conjunction with a speed regulating device, adjust the lifting speed of the punch, thereby improving the accuracy of punching control.
[0005] (II) Technical Solution
[0006] To solve the aforementioned technical problem, this utility model provides a limiting device for a multi-station punch press, including a limiting setting frame, a first limiting connecting frame, and a second limiting connecting frame. The limiting setting frame has a punch limiting groove at its front end and a top-mounted insertion frame at its top. The top-mounted insertion frame has a left-right communicating insertion slot, which can be connected to an insertion component set at the limiting installation position. The top rear end of the limiting setting frame has a mounting plate, and a set of first mounting frames is provided at each of the left and right ends of the mounting plate. Each of the first mounting frames has a set of fixing pins. The bottom of the mounting plate has a rear anti-detachment pad, the upper end of the rear anti-detachment pad has a first limiting connecting frame, and the lower end of the rear anti-detachment pad has a second limiting connecting frame.
[0007] In a preferred embodiment of this utility model, the first limiting connecting frame includes two sets of first support frames, the top of the two sets of first support frames is provided with a first reinforcing frame, the bottom of the two sets of first support frames is provided with a first limiting roller, the first limiting roller is provided with a first adjusting gear between the two sets of first support frames, and the front end of the first limiting roller is provided with a first speed regulating gear.
[0008] Furthermore, the second limiting connection frame includes two sets of second support frames, with a second reinforcing frame at the top of the two sets of second support frames and a second limiting roller at the bottom of the two sets of second support frames. The second limiting roller is provided with a second adjusting gear between the two sets of second support frames and a second speed regulating gear at the front end of the second limiting roller.
[0009] Furthermore, the punch limiting groove is provided with a first speed regulating notch corresponding to the first speed regulating gear, and the punch limiting groove is provided with a second speed regulating notch corresponding to the second speed regulating gear.
[0010] Furthermore, a second mounting bracket is provided at the middle of the rear anti-detachment pad, and a third mounting bracket is provided at the bottom of the rear anti-detachment pad.
[0011] Furthermore, a set of fixing pin frames is provided at the left and right ends of the connection between the bottom of the rear anti-detachment pad and the limiting frame, and a number of fixing bolts are provided on the fixing pin frames.
[0012] Furthermore, a side connecting frame is provided on the bottom left side of the limiting frame, and the side connecting frame is provided with several movable bolts.
[0013] Furthermore, a first circuit mounting bracket is provided on the bottom left side of the limiting bracket, and a calibration camera is provided at the front end of the first circuit mounting bracket.
[0014] Furthermore, a second circuit mounting bracket is provided on the bottom right side of the limiting bracket, and a proximity sensor is provided at the front end of the second circuit mounting bracket.
[0015] (III) Beneficial Effects
[0016] This utility model provides a limiting device for a multi-station punch press. It uses multiple sets of mounting components to fix the rear anti-detachment pad at the limiting installation position, thereby establishing a fixed and control relationship between the punch press and the limiting device. The punch lifting connecting plate is set in the punch limiting groove, thus establishing limit control for the punching lifting. Two sets of speed-regulating gears are used to adjust the speed of the punch lifting connecting plate at its lifting position, effectively controlling the punching speed of the punch lifting connecting plate and ensuring accurate punching of the workpiece. A calibration camera and proximity sensor are installed to accurately detect the punching speed and position of the punch, facilitating adjustments to the control output of the DC motor and push device, improving the practicality of the limiting device, and ensuring the efficiency and accuracy of the punch press operation. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the limiting device according to an embodiment of the present utility model;
[0018] Figure 2This is a schematic diagram of the structure of region A of the limiting device according to an embodiment of the present utility model;
[0019] Figure 3 This is a schematic diagram of the structure of region B of the limiting device in an embodiment of the present invention.
[0020] Explanation of reference numerals in the attached figures:
[0021] 1 is the limit setting frame, 2 is the top plug-in frame, 3 is the mounting plate, 4 is the first mounting frame, 5 is the fixing pin, 6 is the first limit connecting frame, 7 is the first reinforcing frame, 8 is the first limit roller, 9 is the first adjusting gear, 10 is the first speed regulating gear, 11 is the punch limit groove, 12 is the second mounting frame, 13 is the second limit connecting frame, 14 is the third mounting frame, 15 is the rear anti-detachment pad, 16 is the fixing locking pin frame, 17 is the side connecting frame, 18 is the first circuit mounting frame, 19 is the calibration camera, 20 is the second circuit mounting frame, and 21 is the proximity sensor. Detailed Implementation
[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0023] See Figures 1 to 3 This utility model provides a limiting device for a multi-station punch press, including a limiting frame 1, a first limiting connecting frame 6, and a second limiting connecting frame 13. The limiting frame 1 has a punch limiting groove 11 at its front end and a top-mounted insertion frame 2 at its top. The top-mounted insertion frame 2 has a left-right communicating insertion groove, which can be connected to an insertion component set at the limiting installation position. The top rear end of the limiting frame 1 has a mounting plate 3. The left and right ends of the mounting plate 3 each have a set of first mounting frames 4, and each first mounting frame 4 has a set of fixing pins 5. The bottom of the mounting plate 3 has a rear... An anti-detachment pad 15 is provided. The upper end of the rear anti-detachment pad 15 is provided with a first limiting connecting frame 6, and the lower end of the rear anti-detachment pad 15 is provided with a second limiting connecting frame 13. In this solution, the rear anti-detachment pad 15 is used as a connecting component with the punch lifting limiting guide device. It is fixedly installed at the limiting installation position of each group of punches in the punch press through the first mounting frame 4, the second mounting frame 12 and the third mounting frame 14. By embedding the punch lifting connecting plate in the notch of the punch limiting groove 11, the limiting device can adjust the lifting guidance, limiting and speed of the punch, thereby improving the accuracy of the stamping control of each group of punches in the multi-station punch press.
[0024] The rear anti-detachment pad 15 is fixedly installed on the first limiting connecting frame 6 and the second limiting connecting frame 13 through a connecting structure. The front ends of the first limiting connecting frame 6 and the second limiting connecting frame 13 are respectively embedded in the punch limiting groove 11 by the first speed regulating gear 10 and the second speed regulating gear. The front panel of the punch lifting connecting plate is provided with a toothed groove. The two sets of speed regulating gears are connected to the toothed groove. The static contact between the two sets of speed regulating gears and the toothed groove can reduce the descent speed of the punch lifting connecting plate, thereby reducing the speed of the punch, avoiding over-punch, and reducing the negative impact of strong impact on the punch assembly.
[0025] See Figure 2 The first limiting connecting frame 6 includes two sets of first support frames. The top of the two sets of first support frames is provided with a first reinforcing frame 7, and the bottom of the two sets of first support frames is provided with a first limiting roller 8. The first limiting roller 8 is provided with a first adjusting gear 9 between the two sets of first support frames. The front end of the first limiting roller 8 is provided with a first speed regulating gear 10. The first limiting connecting frame 6 is fixedly connected to the top of the rear anti-detachment pad 15 through the two sets of first support frames. The first reinforcing frame 7 enhances the overall connection and support strength of the two sets of first support frames. The bottom of the first limiting connecting frame 6 is fixed to the installation of the first limiting roller 8. An adjusting chain is provided on the first adjusting gear 9, and the rotation direction of the first adjusting gear 9 is controlled by a DC motor.
[0026] When the descent speed of the punch lifting connecting plate is too fast, the DC motor drives the first speed regulating gear 10 to rotate counterclockwise, further reducing the descent speed of the punch lifting connecting plate; when the descent speed of the punch lifting connecting plate is slow, the DC motor drives the first speed regulating gear 10 to rotate clockwise, further accelerating the descent speed of the punch lifting connecting plate, so that the punch has a certain downward pressure and initial velocity, and makes accurate impact contact with the workpiece.
[0027] The second limiting connecting frame 13 includes two sets of second support frames. The top of the two sets of second support frames is provided with a second reinforcing frame, and the bottom of the two sets of second support frames is provided with a second limiting roller. The second limiting roller is provided with a second adjusting gear between the two sets of second support frames, and the front end of the second limiting roller is provided with a second speed regulating gear. The two sets of second support frames establish a fixed connection between the second limiting connecting frame 13 and the top of the rear anti-detachment pad 15. The second reinforcing frame enhances the overall connection and support strength of the two sets of second support frames. The component structure and working process of the second limiting connecting frame 13 are synchronized with the first limiting connecting frame 6, which can effectively realize the speed regulation of the punch lifting connecting plate.
[0028] The punch limiting groove 11 has a first speed regulating notch corresponding to the first speed regulating gear 10, and the punch limiting groove 11 has a second speed regulating notch corresponding to the second speed regulating gear. The first speed regulating gear 10 extends into the punch limiting groove 11 through the first speed regulating notch, and the second speed regulating gear extends into the punch limiting groove 11 through the second speed regulating notch. During the descent of the punch lifting connecting plate, the two sets of gears contact the tooth groove, and the two sets of gears establish contact with the tooth groove, thereby adjusting the descent speed of the punch.
[0029] The rear anti-detachment pad 15 is provided with a second mounting bracket 12 in the middle and a third mounting bracket 14 at the bottom. Both the second mounting bracket 12 and the third mounting bracket 14 include two sets of connecting panels. The connecting panels of the two sets of mounting brackets that contact the rear anti-detachment pad 15 are provided with several sets of positioning pins to ensure the fixed connection between the two sets of mounting brackets and the rear anti-detachment pad 15. The other set of connecting panels of the two sets of mounting brackets are provided with several sets of connecting bolts to establish a fixed connection between the two sets of mounting brackets and the limit installation position.
[0030] See Figure 3 At the left and right ends of the connection between the bottom of the rear anti-detachment pad 15 and the limit setting frame 1, there is a set of fixing pin frames 16. Each fixing pin frame 16 is provided with several fixing bolts. The two sets of fixing pin frames 16 and their corresponding fixing bolts ensure the fixed connection between the bottom of the rear anti-detachment pad 15 and the limit setting frame 1, thereby enhancing the structural stability of the limit device.
[0031] The bottom left side of the limit setting frame 1 is provided with a side connecting frame 17. The side connecting frame 17 is provided with several movable bolts. The side connecting frame 17 can be used to set other working components required for the operation of the punch press through the movable bolts, thereby improving the cooperation performance between the limit device and the installation position of the punch press.
[0032] The bottom left side of the limit setting frame 1 is provided with a first circuit mounting frame 18, and the front end of the first circuit mounting frame 18 is provided with a calibration camera 19. By setting the calibration camera 19, it is possible to detect whether the workpiece to be stamped is in place and to determine whether the punch is performing a stamping operation on the workpiece.
[0033] The bottom right side of the limit setting frame 1 is provided with a second circuit mounting frame 20. The front end of the second circuit mounting frame 20 is provided with a proximity sensor 21. By setting the proximity sensor 21 to detect the downward pressing state of the punch, it helps to determine whether the DC motor needs to decelerate or accelerate the punch, thereby improving the accuracy control of the punch pressing.
[0034] The present invention provides a limiting device for a multi-station punch press. The limiting device establishes a fixed connection with the limiting installation position through each set of mounting components, thereby realizing the fixed installation of the punch press on the limiting device. The punch lifting connecting plate moves up and down in the punch limiting groove 11, and the speed is adjusted by two sets of speed regulating gears. With the detection signal of the proximity sensor 21, the speed and displacement accuracy of the punch lifting are effectively adjusted, thereby improving the working accuracy of the punch.
[0035] Although the disclosure is as stated above, the scope of protection of this disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this utility model.
Claims
1. A limiting device for a multi-station punch press, characterized in that, The device includes a limiting frame (1), a first limiting connecting frame (6), and a second limiting connecting frame (13). The limiting frame (1) has a punch limiting groove (11) at its front end and a top plug-in frame (2) at its top. The top plug-in frame (2) has a plug-in slot that connects the left and right sides. The plug-in slot can be connected to the plug-in component set at the limiting installation position. The limiting frame (1) has a mounting plate (3) at its top rear end. The mounting plate (3) has a set of first mounting frames (4) at its left and right ends. The first mounting frames (4) have a set of fixing pins (5) at their respective ends. The mounting plate (3) has a rear anti-detachment pad (15) at its bottom. The rear anti-detachment pad (15) has a first limiting connecting frame (6) at its upper end and a second limiting connecting frame (13) at its lower end. The first limiting connection frame (6) includes two sets of first support frames. The top of the two sets of first support frames is provided with a first reinforcing frame (7), and the bottom of the two sets of first support frames is provided with a first limiting roller (8). The first limiting roller (8) is provided with a first adjusting gear (9) between the two sets of first support frames, and the front end of the first limiting roller (8) is provided with a first speed regulating gear (10).
2. A limiting device for a multi-station punch press according to claim 1, characterized in that, The second limiting connection frame (13) includes two sets of second support frames. The top of the two sets of second support frames is provided with a second reinforcing frame, and the bottom of the two sets of second support frames is provided with a second limiting roller. The second limiting roller is provided with a second adjusting gear between the two sets of second support frames, and the front end of the second limiting roller is provided with a second speed regulating gear.
3. A limiting device for a multi-station punch press according to claim 2, characterized in that, The punch limiting groove (11) is provided with a first speed regulating notch at the first speed regulating gear (10), and the punch limiting groove (11) is provided with a second speed regulating notch at the second speed regulating gear.
4. A limiting device for a multi-station punch press according to claim 1, characterized in that, The rear anti-detachment pad (15) is provided with a second mounting bracket (12) at the middle, and the rear anti-detachment pad (15) is provided with a third mounting bracket (14) at the bottom.
5. A limiting device for a multi-station punch press according to claim 1, characterized in that, The bottom of the rear anti-detachment pad (15) is connected to the limit setting frame (1) at the left and right ends respectively, and a set of fixing pin frames (16) are provided on the fixing pin frames (16) respectively. Several fixing bolts are provided on the fixing pin frames (16).
6. A limiting device for a multi-station punch press according to claim 1, characterized in that, The limiting frame (1) has a side connecting frame (17) on the bottom left side, and the side connecting frame (17) has several movable bolts.
7. A limiting device for a multi-station punch press according to claim 1, characterized in that, The limiting frame (1) has a first circuit mounting frame (18) on the bottom left side, and a calibration camera (19) is provided at the front end of the first circuit mounting frame (18).
8. A limiting device for a multi-station punch press according to claim 1, characterized in that, The bottom right side of the limiting bracket (1) is provided with a second circuit mounting bracket (20), and the front end of the second circuit mounting bracket (20) is provided with a proximity sensor (21).