Punching press auxiliary positioning device

Abstract

The utility model discloses a punch auxiliary positioning device relates to the stamping processing technical field, including the feeding guide rail, the feeding guide rail corresponding punch workstation upper end both sides mirror image symmetry fixed connection has two, and the upper end sliding connection of feeding guide rail has the positioning sliding seat, through the feeding guide rail that sets up, can through the synchronous front -and -back movement of pushing both sides sliding hinge seat on both sides positioning sliding seat, realizes both sides positioning clamping seat synchronous close and far away, thereby prevents the workpiece automatic clamping and centering on the punch workstation, can automatic regulation workpiece's position, makes it with punch's stamping center keep consistent, thereby avoided the problem such as stamping defect or equipment damage caused by workpiece position deviation. This not only improves production efficiency, also reduced the operation difficulty and artificial cost, keeps the stability of workpiece when stamping processing.

Description

Technical Field

[0001] This utility model relates to the field of stamping technology, specifically to an auxiliary positioning device for a punch press. Background Technology

[0002] Stamping equipment is a type of stamping press, which uses an upper die and a lower die to stamp and form sheet metal parts. It has advantages such as saving materials, saving energy, and high work efficiency.

[0003] In the existing technology, for stamping of small batches of non-standard parts, an open processing table is usually set on the worktable of the press bed. The operator adds the workpiece by manually picking up and placing it. The staff directly places the sheet on the surface of the lower die and performs the stamping operation by visual inspection. However, this operation method will lead to large stamping errors and low product quality.

[0004] To address the issue of significant errors during stamping, current technical solutions typically involve welding positioning rods to the support base or pre-drilling holes in the base for mounting the positioning rods. Alternatively, positioning structures that can cooperate with each other can be designed and implemented during the manufacturing of the upper and lower dies. However, these methods share some common drawbacks. Specifically, when stamping different batches of sheet metal, due to differences in dimensional requirements, it is often necessary to remove the original positioning rods and then reinstall new ones according to the new dimensional requirements. This process is not only cumbersome but also significantly reduces work efficiency. Furthermore, if re-dieing is required, the cost becomes extremely high. In addition, there are certain safety hazards during the manual handling of stamped parts, requiring additional attention and measures to ensure operator safety. Therefore, we propose an auxiliary positioning device for stamping presses. Utility Model Content

[0005] The purpose of this utility model is to solve the problem of cumbersome positioning operations and low work efficiency in the stamping process of stamping small batches of non-standard parts. This utility model provides an auxiliary positioning device for punch presses.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution: A punch press auxiliary positioning device includes a feeding guide rail. Two feeding guide rails are fixedly connected to the upper sides of the punch press worktable in a mirror-symmetrical manner. A positioning sliding seat is slidably connected to the upper end of the feeding guide rail. A fixed hinge seat is fixedly connected to the rear end of the inward side of the positioning sliding seat, and a sliding hinge seat is slidably connected to the front end of the inward side of the positioning sliding seat. Scissor arms are respectively hinged to the inward side of the fixed hinge seat and the sliding hinge seat. Two scissor arms corresponding to the same positioning sliding seat are hinged to the inward side of a linkage hinge seat. A positioning clamp is fixedly connected to the inward side of the linkage hinge seat. A linkage locking mechanism is provided between the two sliding hinge seats.

[0007] Furthermore, the linkage locking mechanism includes two locking slides, which are fixedly connected to the upper ends of the two side sliding hinges respectively. A T-shaped groove is opened at the center of the upper end of each of the two side positioning slides. A T-shaped slider is fixedly connected to the bottom of each of the two locking slides. The T-shaped sliders on both sides are slidably connected to the T-shaped grooves on both sides respectively. A self-locking threaded hole is opened on the inward side of each of the two locking slides, and a double-ended screw is threaded between the two locking slides.

[0008] Furthermore, a limiting protrusion is fixedly connected to the center of the inner side of the positioning sliding seat on both sides, and a sliding groove is opened at the center of the outer side of the sliding hinge seat corresponding to the limiting protrusion. A rubber friction pad is fixedly connected to the inner side of the limiting protrusion.

[0009] Furthermore, a rotating rubber grip is fixedly sleeved in the middle of the double-ended screw, and the outer wall of the rotating rubber grip is evenly distributed with multiple anti-slip ridges.

[0010] Furthermore, the positioning clamp has a fixing groove on its inward side that matches the outer edge size of the workpiece to be processed, and connecting bolts are inserted through both ends of the outer side of the linkage hinge, and the connecting bolts are threadedly connected to the positioning clamp after passing through the linkage hinge.

[0011] Furthermore, an operating fixing head is fixedly connected to the front side of each of the two positioning sliding seats, and a feeding operating rod is fixedly connected between the two operating fixing heads.

[0012] Furthermore, guide grooves are provided on the outer sides of the feeding guide rails on both sides, and snap-fit ​​sliders are fixedly connected to the outer sides of the bottom of the positioning sliding seats on both sides corresponding to the guide grooves.

[0013] The beneficial effects of this utility model are as follows: 1. This utility model utilizes a feeding guide rail. The positioning sliding seat on the feeding guide rail can clamp and fix the workpiece through a scissor structure. The fixed hinge seats and sliding hinge seats on both sides form a scissor structure through the hinged engagement of the scissor arms and the connecting hinge seats. By pushing the sliding hinge seats on both sides to move synchronously back and forth on the positioning sliding seats on both sides, the positioning clamping seats on both sides can move synchronously closer and further away. This prevents the workpiece from being automatically clamped and centered on the press table, and can automatically adjust the position of the workpiece to be consistent with the stamping center of the press, thereby avoiding problems such as poor stamping or equipment damage caused by workpiece position deviation. This not only improves production efficiency but also reduces operating difficulty and labor costs, and maintains the stability of the workpiece during stamping. Through the sliding engagement of the positioning sliding seat on the feeding guide rail, the workpiece can be pushed by pushing the positioning sliding seat to perform manual feeding, thus replacing direct manual operation of the workpiece and effectively avoiding safety hazards such as pinching and crushing injuries that may be caused by direct contact with the press. In addition, the design of this device also takes into account the stability of the workpiece during the stamping process. Through precise scissor mechanism and hinge design, it can be ensured that the workpiece will not wobble or shift during clamping, further improving the accuracy and safety of stamping.

[0014] 2. This utility model utilizes a double-ended screw with opposite thread directions at both ends. Rotating the double-ended screw allows two locking slides to move synchronously towards or away from each other. A gap exists between the two sides of the T-shaped slider and the inner walls of the T-shaped groove. The opposite movement of the two locking slides presses the opposite sides of the sliding hinges and the positioning slides, as well as the outer side of the T-shaped slider against the inner wall of the T-shaped groove. This friction locks the sliding hinges, enabling locking or unlocking of their positions. When unlocked, the two sliding hinges slide rapidly back and forth, propelled by the double-ended screw, allowing for rapid adjustment of the clamping width of the positioning clamp to accommodate workpieces of different sizes. This significantly improves the efficiency of positioning and clamping.

[0015] 3. The present invention, through the setting of the limiting protrusion, and the cooperation between the limiting protrusion and the sliding groove on the outer side of the sliding hinge seat, can make the forward and backward movement of the sliding hinge seat more stable, and when the sliding hinge seat is pressed outward by the double-ended screw and the two locking slide seats, the friction force of the sliding hinge seat at the stop is increased. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention; Figure 2 This is a front sectional view of the middle position of the positioning clamp of this utility model; Figure 3 This is a front sectional view of the middle position of the locking slide of this utility model; Figure 4 This is a utility model Figure 3 Enlarged view of point A in the middle.

[0017] Reference numerals in the attached drawings: 1. Feeding guide rail; 2. Positioning sliding seat; 3. Fixed hinge seat; 4. Sliding hinge seat; 5. Scissor arm; 6. Linkage hinge seat; 7. Positioning clamp seat; 8. Locking slide seat; 9. T-shaped slide groove; 10. Double-ended screw; 11. T-shaped slider; 12. Rotating rubber grip; 13. Operating fixed head; 14. Feeding operating lever; 15. Limiting protrusion. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0019] Please see Figures 1-4 This utility model provides an auxiliary positioning device for a punch press, including a feeding guide rail 1. Two feeding guide rails 1 are fixedly connected to the upper sides of the punch press worktable in a mirror-symmetrical manner. A positioning sliding seat 2 is slidably connected to the upper end of the feeding guide rail 1. A fixed hinge seat 3 is fixedly connected to the rear end of the inward side of the positioning sliding seat 2, and a sliding hinge seat 4 is slidably connected to the front end of the inward side of the positioning sliding seat 2. Scissor arms 5 are respectively hinged to the inward side of the fixed hinge seat 3 and the sliding hinge seat 4. A linkage hinge seat 6 is hinged to the inward side of the two scissor arms 5 corresponding to the same positioning sliding seat 2. A positioning clamp seat 7 is fixedly connected to the inward side of the linkage hinge seat 6. A linkage locking mechanism is provided between the two sliding hinge seats 4.

[0020] In this embodiment, preferably, the linkage locking mechanism includes two locking slides 8, which are fixedly connected to the upper ends of the two side sliding hinge seats 4 respectively. A T-shaped groove 9 is provided at the center of the upper end of each of the two side positioning slide seats 2. A T-shaped slider 11 is fixedly connected to the bottom of each of the two locking slides 8. The two T-shaped sliders 11 are slidably connected to the two side T-shaped grooves 9 respectively. A self-locking threaded hole is provided on the inward side of each of the two locking slides 8, and a double-ended screw 10 is threadedly connected between the two locking slides 8. The double-ended screw 10 has opposite threads at both ends, and rotating the double-ended screw 10 can... This allows the two locking slides 8 to move synchronously towards or away from each other. A gap exists between the two sides of the T-shaped slider 11 and the inner walls of the T-shaped groove 9. The opposite movement of the two locking slides 8 presses the opposite sides of the sliding hinge seats 4 and the positioning slide seat 2, as well as the outer side of the T-shaped slider 11 against the outer inner wall of the T-shaped groove 9. This friction locks the locking slides 8, allowing the sliding hinge seats 4 to be locked or unlocked. When the sliding hinge seats 4 are unlocked, the double-ended screws 10 push the two sliding hinge seats 4 back and forth rapidly, enabling rapid adjustment of the clamping width of the positioning clamp 7 to accommodate workpieces of different sizes. This significantly improves the efficiency of positioning and clamping.

[0021] In this embodiment, preferably, the center of the inner side of the two positioning sliding seats 2 is fixedly connected to the limiting protrusion 15, and the center of the outer side of the sliding hinge seat 4 is provided with a sliding groove corresponding to the limiting protrusion 15. A rubber friction pad is fixedly connected to the inner side of the limiting protrusion 15. Through the setting of the limiting protrusion 15, the cooperation between the limiting protrusion 15 and the sliding groove on the outer side of the sliding hinge seat 4 can make the back and forth movement of the sliding hinge seat 4 more stable. When the sliding hinge seat 4 is pressed outward by the double-headed screw 10 and the two locking sliding seats 8, the friction force of the sliding hinge seat 4 at the stop is improved.

[0022] In this embodiment, preferably, a rotating rubber grip 12 is sleeved and fixed in the middle of the double-ended screw 10, and the outer wall of the rotating rubber grip 12 is evenly distributed with multiple anti-slip ridges; the rotating rubber grip 12 facilitates the operator to hold the double-ended screw 10 and perform the operation of rotating the double-ended screw 10 and pushing the locking slides 8 on both sides to move back and forth.

[0023] In this embodiment, preferably, the positioning clamp 7 has a fixing groove on the inward side that matches the outer edge size of the workpiece to be processed, and the connecting hinge 6 has connecting bolts inserted through both ends on the outer side, and the connecting bolts are threaded to the positioning clamp 7 after passing through the connecting hinge 6; the positioning hinge 7 can be replaced according to the different sizes of the workpiece to be clamped, thereby improving the applicability of the device.

[0024] In this embodiment, preferably, an operating fixing head 13 is fixedly connected to the front side of each of the two positioning sliding seats 2, and a feeding operating rod 14 is fixedly connected between the two operating fixing heads 13; the operating fixing heads 13 and the feeding operating rod 14 facilitate the operator to push the two positioning sliding seats 2 to move synchronously at the front of the punch press to perform the feeding operation. In this embodiment, preferably, guide grooves are provided on the outer sides of the two feeding guide rails 1, and locking sliders are fixedly connected to the outer sides of the bottom of the two positioning sliding seats 2 corresponding to the guide grooves; through the cooperation of the guide grooves and locking sliders, the sliding of the positioning sliding seat 2 on the feeding guide rail 1 can be made more stable, avoiding deviation during the sliding process and improving the positioning accuracy.

[0025] The working principle and usage of this utility model are as follows: When in use, the device uses a feeding guide rail 1. The positioning sliding seat 2 on the feeding guide rail 1 clamps and fixes the workpiece through a scissor mechanism. The fixed hinge seats 3 and sliding hinge seats 4 on both sides form a scissor structure through the hinged engagement of the scissor arms 5 and the connecting hinge seats 6. By pushing the sliding hinge seats 4 on both sides to move synchronously back and forth on the positioning sliding seats 2, the positioning clamping seats 7 on both sides move synchronously closer and further away. This prevents the workpiece from being automatically clamped and centered on the press table, automatically adjusting the workpiece position to align with the press's stamping center, thus avoiding problems such as poor stamping or equipment damage caused by workpiece position deviation. This not only improves production efficiency but also reduces operational difficulty and labor costs, maintaining the stability of the workpiece during stamping. Through the sliding engagement of the positioning sliding seat 2 on the feeding guide rail 1, the workpiece can be pushed by moving the positioning sliding seat 2, allowing for manual feeding, thus replacing direct manual operation of the workpiece and effectively avoiding safety hazards such as pinching and crushing injuries that may result from direct contact with the press. Furthermore, the design of this device also takes into account the stability of the workpiece during the stamping process. Through precise scissor mechanism and hinge design, it ensures that the workpiece will not wobble or shift during clamping, further improving the accuracy and safety of stamping.

[0026] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A punch assist positioning device, characterized by: The device includes a feeding guide rail (1), which has two fixed connections on the upper sides of the punch press workbench, and a positioning sliding seat (2) is slidably connected to the upper end of the feeding guide rail (1). A fixed hinge seat (3) is fixedly connected to the rear end of the positioning sliding seat (2) on the inward side, and a sliding hinge seat (4) is slidably connected to the front end of the positioning sliding seat (2) on the inward side. Scissor arms (5) are respectively hinged to the inward side of the fixed hinge seat (3) and the sliding hinge seat (4). A linkage hinge seat (6) is hinged to the inward side of the two scissor arms (5) corresponding to the same positioning sliding seat (2). A positioning clamp seat (7) is fixedly connected to the inward side of the linkage hinge seat (6). A linkage locking mechanism is provided between the two sliding hinge seats (4).

2. A punch assist positioning device according to claim 1, wherein: The linkage locking mechanism includes two locking slides (8), which are fixedly connected to the upper ends of the two sliding hinge seats (4) on both sides respectively. The upper center of the two positioning slide seats (2) is provided with a T-shaped groove (9). The bottom of the two locking slides (8) is fixedly connected with a T-shaped slider (11). The T-shaped sliders (11) on both sides are slidably connected in the T-shaped grooves (9) on both sides respectively. The two locking slides (8) are provided with a self-locking threaded hole on the inward side, and a double-headed screw (10) is threaded between the two locking slides (8).

3. A punch assist positioning device according to claim 2, wherein: Both sides of the positioning sliding seat (2) are fixedly connected to the center of the inner side of the positioning sliding seat (2), and the outer center of the sliding hinge seat (4) is provided with a sliding groove corresponding to the positioning sliding seat (15). The inner side of the positioning sliding seat (15) is fixedly connected to a rubber friction pad.

4. A punch assist positioning device according to claim 2, wherein: The double-ended screw (10) is fitted with a rotating rubber grip (12) in the middle, and the outer wall of the rotating rubber grip (12) is evenly distributed with multiple anti-slip ridges.

5. The punch assist positioning device of claim 1, wherein: The positioning clamp (7) has a fixed slot on the inner side that matches the outer edge size of the workpiece to be processed. The connecting hinge (6) has connecting bolts inserted through both ends on the outer side, and the connecting bolts are threaded to the positioning clamp (7) after passing through the connecting hinge (6).

6. The punch assist positioning device of claim 1, wherein: Both sides of the positioning sliding seat (2) are fixedly connected to the front side of the operation fixing head (13), and the two sides of the operation fixing head (13) are fixedly connected to the feeding operation rod (14).

7. The punch assist positioning device of claim 1, wherein: The outer sides of the feeding guide rails (1) on both sides are provided with guide grooves, and the bottom outer sides of the positioning sliding seats (2) on both sides are fixedly connected with snap-fit ​​sliders corresponding to the guide grooves.

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