Die positioning assembly for forming vehicle structural part

Abstract

The utility model discloses a mold positioning assembly for forming a vehicle structural member, which relates to the technical field of vehicle structural member mold positioning and comprises an operation table, a placing table and a stamping assembly are mounted at the top of the operation table, a sliding groove is formed in the middle of the placing table, and a two-way threaded rod is rotatably mounted in the sliding groove. The two ends of the two-way threaded rod are spirally connected with moving frames, a sliding rod is fixedly arranged at the bottom of the containing table, the moving frames are arranged on the sliding rod in a sliding mode, V-shaped frames are symmetrically arranged on the two moving frames, and the V-shaped frames on the two moving frames are arranged in a staggered mode. When the two-way threaded rod rotates, the two movable frames can be driven to move relatively, the two V-shaped frames are matched with the arc-shaped surface of the circular workpiece in a multi-contact mode, the circular workpiece is fixed in multiple directions, and therefore the center position of the circular workpiece can be better fixed. And sliding or rotation of the workpiece caused by stress in the stamping process is reduced, so that the product precision and quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle structural component mold positioning technology, specifically a mold positioning component for forming vehicle structural components. Background Technology

[0002] In the automotive manufacturing industry, the production quality and efficiency of vehicle structural components play a decisive role in the overall vehicle performance and cost. Stamping, with its unique advantages, has become the mainstream method for manufacturing vehicle structural components; however, ensuring the precise positioning of the stamping dies is crucial during the stamping process.

[0003] Chinese utility model patent application number 202222449916.8 provides a mold positioning device for stable positioning of stamping dies. The workpiece is placed on the top of the support base. By rotating the second threaded rod, the fixed plate is driven to move relative to the workpiece, thereby clamping the workpiece and achieving initial positioning of the workpiece. The slide plate moves downward along the outside of the limiting rod. Under the restriction of the limiting rod, the direction of the slide plate movement is fixed, so that the stamping plate connected to it can move downward accurately to stamp the workpiece. This realizes the positioning of the stamping plate relative to the workpiece.

[0004] However, during the use of the aforementioned equipment, it was found that the fixing plates clamp the workpiece from both sides. When encountering a round workpiece that needs to be stamped, the surface of the round workpiece is curved. When the fixing plates clamp from both sides, the contact point is usually only a local part of the round workpiece, making it difficult to ensure that the center position of the workpiece remains fixed. During the stamping process, the workpiece may experience slight sliding or rotation between the fixing plates due to the force applied, resulting in deviations in the stamping position and affecting the accuracy and quality of the product. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a mold positioning assembly for forming vehicle structural parts, which solves the problem mentioned in the background technology that when encountering a round workpiece that needs to be stamped, the workpiece may experience slight sliding or rotation between the fixed plates due to force, resulting in deviations in the stamping position and affecting the accuracy and quality of the product.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a mold positioning assembly for forming vehicle structural parts, including an operating table, a placement platform and a stamping assembly installed on the top of the operating table, a sliding groove in the middle of the placement platform, a bidirectional threaded rod rotatably installed in the sliding groove, a movable frame screwed to both ends of the bidirectional threaded rod, a sliding rod fixedly installed at the bottom of the placement platform, the movable frame slidably mounted on the sliding rod, and V-shaped frames symmetrically arranged on the two movable frames, with the V-shaped frames on the two movable frames staggered.

[0007] Preferably, the stamping assembly includes a bracket, a stamping cylinder is mounted on the top of the bracket, a movable plate is connected to the output end of the stamping cylinder, the movable plate is slidably mounted on the bracket, and a stamping plate is detachably connected to the bottom of the movable plate.

[0008] Preferably, a protrusion is fixedly provided on the inner side of the V-shaped frame, the protrusion is arranged in a stepped shape, and the corner of the protrusion is set in an arc shape.

[0009] Preferably, the V-shaped frame is equipped with an anti-slip rubber pad.

[0010] Preferably, the two ends of the V-shaped frame at the front end of the placement platform are provided with symmetrical clamping members.

[0011] Preferably, the clamping component includes a clamping frame, which is connected to the V-shaped frame by bolts. A guide rod is fixedly installed in the clamping frame, and a clamping plate is slidably installed on the guide rod. A semi-cylinder is provided on the side of the clamping plate near the V-shaped frame. The clamping plate is connected to the side wall of the clamping frame by a spring, and the spring is sleeved on the guide rod.

[0012] This utility model provides a mold positioning assembly for molding vehicle structural components. It has the following beneficial effects:

[0013] (1) When the bidirectional threaded rod rotates, the present invention can drive the two moving frames to move relative to each other. By using the two V-shaped frames to cooperate with the arc surface of the circular workpiece at multiple contact points, the circular workpiece can be fixed from multiple directions, thereby better fixing the center position of the circular workpiece and reducing the sliding or rotation of the workpiece caused by the force during the stamping process, thereby improving the product accuracy and quality.

[0014] (2) This utility model, by setting the protrusions on the inner side of the V-shaped frame in a stepped manner, can adjust the fit of the square workpiece with different steps, adapting to square workpieces of different sizes, thus improving the versatility of the equipment. At the same time, when the size of the square workpiece is larger than the V-shaped frame, the position of the clamping plate can be adjusted according to the size of the workpiece. The spring enables the clamping plate to adaptively fit the workpiece surface, while positioning the workpiece in the middle of the placement table for easy clamping and fixing by the V-shaped frame. Attached Figure Description

[0015] Figure 1 This is a diagram showing the overall structure of this utility model;

[0016] Figure 2 This utility model Figure 1 Structural diagram of the central placement platform;

[0017] Figure 3 This utility model Figure 2 Bottom view of the central placement platform;

[0018] Figure 4 This utility model Figure 1 Structural diagram of the stamping assembly;

[0019] Figure 5 This utility model Figure 2 A structural diagram of the V-shaped frame.

[0020] In the diagram, 1 represents the control panel;

[0021] 2. Placement platform; 21. Slide groove; 22. Two-way threaded rod; 23. Anti-slip rubber pad; 24. Movable frame; 25. V-shaped frame; 251. Protrusion; 26. Slide rod;

[0022] 3. Stamping assembly; 31. Bracket; 32. Stamping cylinder; 33. Moving plate; 34. Stamping plate;

[0023] 4. Clamping component; 41. Clamping frame; 42. Guide rod; 43. Clamping plate; 44. Spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0025] Example 1:

[0026] Please see Figures 1-4 This utility model provides a mold positioning assembly for forming vehicle structural parts, including an operating table 1, a placement platform 2 and a stamping assembly 3 installed on the top of the operating table 1, a slide groove 21 in the middle of the placement platform 2, a bidirectional threaded rod 22 rotatably installed in the slide groove 21, and a movable frame 24 screwed onto both ends of the bidirectional threaded rod 22, a slide rod 26 fixedly installed at the bottom of the placement platform 2, and the movable frame 24 slidably installed on the slide rod 26, with V-shaped frames 25 symmetrically arranged on the two movable frames 24, and the V-shaped frames 25 on the two movable frames 24 being staggered.

[0027] The stamping assembly 3 includes a bracket 31, a stamping cylinder 32 is mounted on the top of the bracket 31, a movable plate 33 is connected to the output end of the stamping cylinder 32, the movable plate 33 is slidably mounted on the bracket 31, and a stamping plate 34 is detachably connected to the bottom of the movable plate 33.

[0028] Specifically, the circular workpiece is placed on the placement table 2, and the bidirectional threaded rod 22 is rotated. Since the threads at both ends of the bidirectional threaded rod 22 are in opposite directions, its rotation will drive the movable frame 24, which is connected by a screw at both ends, to move relative to the slide rod 26. The symmetrically arranged and staggered V-shaped frames 25 move with the movable frame 24 and gradually approach the circular workpiece until the V-shaped frames 25 are in contact with the arc surface of the circular workpiece, thereby achieving the clamping and fixing of the circular workpiece.

[0029] The V-shaped bracket 25 is designed to form multiple points of contact with the curved surface of the circular workpiece. Compared with clamping from both sides, it can better determine the center position of the circular workpiece, reduce the slippage or rotation of the workpiece due to force during the stamping process, ensure the accuracy of the stamping position, and thus improve the precision and quality of the product.

[0030] The V-shaped frame 25 has a certain degree of adaptability to clamping circular workpieces of different diameters. As long as the diameter of the circular workpiece is within the adjustable range of the V-shaped frame 25, good clamping and positioning can be achieved by adjusting the position of the moving frame 24, which can meet the stamping positioning requirements of various circular workpieces of different specifications, and enhance the versatility and applicability of the equipment.

[0031] During stamping, the stamping cylinder 32 in the stamping assembly 3 is activated, and its output end pushes the moving plate 33, causing it to slide downward on the bracket 31. Since the moving plate 33 is connected to the output end of the stamping cylinder 32, and under the guidance of the bracket 31, the moving plate 33 can move stably downward in the vertical direction. A stamping plate 34 is detachably connected to the bottom of the moving plate 33. As the moving plate 33 moves downward, the stamping plate 34 is also driven downward until it contacts the circular workpiece that has been fixed on the placement table 2. Under the continuous action of the stamping cylinder 32, the stamping plate 34 applies pressure to the circular workpiece, completing the stamping operation. After stamping is completed, the output end of the stamping cylinder 32 retracts, causing the moving plate 33 and the stamping plate 34 to return to their original position, ready for the next stamping operation.

[0032] The stamping plate 34 is detachable, allowing for quick replacement of the appropriate stamping plate 34 when stamping different types of vehicle structural parts is required. This eliminates the need for large-scale adjustments or replacements of the entire stamping assembly 3, significantly improving the equipment's versatility and production efficiency.

[0033] Furthermore, for fixing a square workpiece, please refer to [link / reference needed]. Figures 1-5 A protrusion 251 is fixedly provided on the inner side of the V-shaped frame 25. The protrusion 251 is arranged in a stepped shape, and the corner of the protrusion 251 is set in an arc shape.

[0034] Anti-slip rubber pads 23 are installed on the V-shaped frame 25;

[0035] The two ends of the V-shaped frame 25 at the front end of the placement platform 2 are provided with symmetrical clamping parts 4;

[0036] The clamping component 4 includes a clamping frame 41, which is connected to the V-shaped frame 25 by bolts. A guide rod 42 is fixedly installed in the clamping frame 41, and a clamping plate 43 is slidably installed on the guide rod 42. A semi-cylinder is provided on the side of the clamping plate 43 near the V-shaped frame 25. The clamping plate 43 is connected to the side wall of the clamping frame 41 by a spring 44, which is sleeved on the guide rod 42.

[0037] Specifically, for small square workpieces, positioning is mainly achieved using protrusions 251 fixedly mounted on the inner side of the V-shaped bracket 25. The protrusions 251 are stepped, and their edges can be aligned with the stepped surfaces of the protrusions 251 according to the size and shape of the small square workpiece, thus achieving positioning. Because the corners of the protrusions 251 are arc-shaped, damage to round workpieces is avoided when the protrusions 251 are aligned with them.

[0038] For large square workpieces, clamping parts 4 are installed at both ends of the V-shaped frame 25 using bolts. Pulling the clamping plate 43 causes it to slide on the guide rod 42 and stretch the spring 44. After placing the large square workpiece, releasing the clamping plate 43 causes the spring 44 to return to its original position and bring the clamping plate 43 into contact with the square workpiece. Under the action of the spring 44, the clamping plate 43 firmly holds the workpiece. The clamping parts 4 at both ends effectively clamp the square workpiece in the middle of the placement table 2. The rotation of the bidirectional threaded rod 22 further clamps the square workpiece with the two V-shaped frames 25, ensuring accurate positioning of the square workpiece below the stamping plate 34. Simultaneously, the rubber material itself has high friction; when the V-shaped frame 25 is in contact with the square workpiece, the anti-slip rubber pad 23 increases the friction between the V-shaped frame 25 and the square workpiece, making it less prone to slippage during positioning and stamping, thereby improving positioning accuracy and stability and ensuring stamping quality.

[0039] Working principle: When stamping a circular workpiece, the circular workpiece is placed on the placement table 2. The bidirectional threaded rod 22 is rotated, which drives the moving frames 24 at both ends to move relative to each other on the slide rod 26. This causes the symmetrically and staggered V-shaped frames 25 to gradually approach the circular workpiece until the V-shaped frames 25 fit against the arc surface of the circular workpiece, thus clamping and fixing the circular workpiece. The stamping cylinder 32 in the stamping assembly 3 is activated, and its output end pushes the moving plate 33 to slide downward on the bracket 31. The moving plate 33 drives the stamping plate 34, which is detachably connected at the bottom, to move downward until the stamping plate 34 contacts and applies pressure to the circular workpiece, completing the stamping operation. After the stamping is completed, the output end of the stamping cylinder 32 retracts, driving the moving plate 33 and the stamping plate 34 to return to their original position, ready for the next stamping.

[0040] When stamping square workpieces, for smaller square workpieces, the smaller square workpiece is placed inside the V-shaped frame 25 so that the edge of the workpiece fits against the stepped surface of the protrusion 251. The protrusion 251 is used for positioning. The two V-shaped frames 25 are used to control the rotation of the bidirectional threaded rod 22 to clamp and fix the smaller square workpiece, so that the square workpiece is accurately positioned below the stamping plate 34.

[0041] When encountering a large square workpiece, clamping parts 4 are installed at both ends of the V-shaped frame 25 using bolts. The clamping plate 43 is pulled to slide on the guide rod 42 and stretch the spring 44. After the large square workpiece is placed, the clamping plate 43 is released, and the spring 44 returns to its original state, causing the clamping plate 43 to fit against the square workpiece. The clamping parts 4 at both ends are used to clamp the square workpiece in the middle of the placement table 2. The bidirectional threaded rod 22 is rotated to further clamp the square workpiece with the two V-shaped frames 25, so that the square workpiece is accurately positioned below the stamping plate 34.

[0042] The stamping process for square workpieces is the same as that for round workpieces. The stamping cylinder 32 is started to perform the stamping. After the stamping is completed, the stamping cylinder 32 drives the relevant components to reset.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0044] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A mold positioning assembly for forming vehicle structural parts, comprising an operating table (1), characterized in that: The top of the operating table (1) is equipped with a placement platform (2) and a stamping assembly (3). A slide groove (21) is provided in the middle of the placement platform (2). A bidirectional threaded rod (22) is rotatably installed in the slide groove (21). A movable frame (24) is screwed on both ends of the bidirectional threaded rod (22). A slide rod (26) is fixedly provided at the bottom of the placement platform (2). The movable frame (24) is slidably arranged on the slide rod (26). V-shaped frames (25) are symmetrically arranged on the two movable frames (24). The V-shaped frames (25) on the two movable frames (24) are staggered.

2. The mold positioning assembly for forming vehicle structural components according to claim 1, characterized in that: The stamping assembly (3) includes a bracket (31), a stamping cylinder (32) is mounted on the top of the bracket (31), a movable plate (33) is connected to the output end of the stamping cylinder (32), the movable plate (33) is slidably mounted on the bracket (31), and a stamping plate (34) is detachably connected to the bottom of the movable plate (33).

3. The mold positioning assembly for forming vehicle structural components according to claim 1, characterized in that: A protrusion (251) is fixedly provided on the inner side of the V-shaped frame (25). The protrusion (251) is arranged in a stepped shape, and the corner of the protrusion (251) is set in an arc shape.

4. The mold positioning assembly for forming vehicle structural components according to claim 3, characterized in that: The V-shaped frame (25) is equipped with anti-slip rubber pads (23).

5. A mold positioning assembly for forming vehicle structural components according to claim 4, characterized in that: The two ends of the V-shaped frame (25) at the front end of the placement platform (2) are provided with symmetrical clamping parts (4).

6. The mold positioning assembly for forming vehicle structural components according to claim 5, characterized in that: The clamping member (4) includes a clamping frame (41), which is connected to the V-shaped frame (25) by bolts. A guide rod (42) is fixedly installed in the clamping frame (41), and a clamping plate (43) is slidably installed on the guide rod (42). A semi-cylinder is provided on the side of the clamping plate (43) near the V-shaped frame (25). The clamping plate (43) is connected to the side wall of the clamping frame (41) by a spring (44), and the spring (44) is sleeved on the guide rod (42).

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