Stamping positioning mechanism for automobile parts

Abstract

This utility model relates to the field of automotive parts stamping technology, specifically to an automotive parts stamping positioning mechanism. It includes a base, an upper die base, and a lower die base. A component is disposed between the upper and lower die bases. A mounting frame is provided on the base, and a component-limiting mechanism is disposed within the mounting frame. An adjustment mechanism for adjusting the position of the mounting frame is also provided on the base. The limiting mechanism includes four sets of symmetrically distributed limiting brackets within the mounting frame. Two sets of symmetrically distributed first push rods and two sets of symmetrically distributed second push rods are slidably mounted within the mounting frame. Through the cooperation of the four sets of symmetrically distributed limiting brackets and the linkage push rods, clamping force can be applied synchronously from the four corners of the component, ensuring precise alignment between the material center and the die cavity, avoiding misalignment caused by dimensional tolerances. The transmission structure of the slide, rack, and gear enables the four sets of limiting brackets to move synchronously. Combined with the elastic reset function of the torsion spring, this ensures clamping stability and adapts to material deformation during stamping.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts stamping technology, specifically to an automotive parts stamping positioning mechanism. Background Technology

[0002] Automotive stamping parts are automotive components manufactured through sheet metal stamping processes. They cover multiple areas, including body panels (such as doors and fenders), structural reinforcements (such as crossbeams and longitudinal beams), engine system components (such as oil pans), and chassis components (such as spring trays). In the stamping process of automotive parts, accurate positioning of raw materials is the key to ensuring stamping precision, which directly affects the dimensional consistency, forming quality, and production efficiency of the products.

[0003] Traditional positioning methods typically employ fixed stop pins or lateral clamping mechanisms. However, unidirectional limiting makes it difficult to ensure that the material center is perfectly aligned with the mold cavity. This is especially true when material dimensional tolerances fluctuate, which can easily lead to skewing. Furthermore, rigid positioning mechanisms cannot move downwards with the punch during the stamping process, which may cause secondary displacement of the material after being compressed or interference with the mold movement. In addition, existing technologies often employ manual adjustment or step-by-step positioning, which is inefficient and difficult to adapt to the needs of automated production. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a stamping positioning mechanism for automotive parts, which solves the problems mentioned in the background.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a stamping positioning mechanism for automotive parts, comprising a base, an upper die base and a lower die base, wherein a component is provided between the upper die base and the lower die base, a mounting frame is provided on the base, a component limiting mechanism is provided within the mounting frame, and an adjustment mechanism for adjusting the position of the mounting frame is provided on the base;

[0008] The limiting mechanism includes four sets of limiting frames symmetrically distributed within the mounting frame. The four sets of limiting frames are located at the four corners of the component. Two sets of symmetrically distributed first push rods and two sets of symmetrically distributed second push rods are slidably installed within the mounting frame. The two sets of first push rods and second push rods are perpendicularly distributed. The limiting frames are slidably connected to one set of first push rods and one set of second push rods, respectively. A slide is provided between each pair of opposite sets of first push rods and opposite sets of second push rods. The outer ends of the slides are fixedly connected to the corresponding first push rods or second push rods, respectively. The adjusting mechanism includes a distance sensor fixedly installed on the mounting frame. A baffle is fixedly installed on the upper mold base. The distance sensor is positioned opposite to the baffle.

[0009] Preferably, racks are fixedly installed on both sets of slides, and gears are provided between the two sets of racks. The gears are meshed with the two sets of racks respectively. The gears are rotatably connected to the mounting frame through the mounting shaft. A torsion spring is sleeved on the mounting shaft, and the two ends of the torsion spring are fixedly connected to the gear and the mounting frame respectively. A cylinder is fixedly installed in the mounting frame, and the lower set of slides is fixedly connected to the output end of the cylinder piston rod.

[0010] Preferably, a slide rod corresponding to the slide is fixedly installed inside the mounting frame. The slide is slidably connected to the corresponding slide rod. Two sets of symmetrically distributed springs are sleeved on the slide rod, and the two ends of the two sets of springs are fixedly connected to the slide and the mounting frame, respectively.

[0011] Preferably, the adjustment mechanism further includes a mounting rod fixedly installed on the base, a first lifting rod slidably installed inside the mounting rod, a second lifting rod slidably installed inside the first lifting rod, and the end of the second lifting rod away from the mounting rod is fixedly connected to the mounting frame.

[0012] Preferably, a threaded rod is rotatably installed inside the mounting rod, the upper end of the threaded rod passes through the first lifting rod and is threadedly connected to the first lifting rod, and a threaded tube is rotatably installed inside the first lifting rod, the upper end of the threaded tube passes through the second lifting rod and is threadedly connected to the second lifting rod.

[0013] Preferably, the threaded rod has two sets of symmetrically distributed limiting grooves, and the threaded tube has two sets of symmetrically distributed limiting blocks, with the limiting blocks and limiting grooves being correspondingly arranged. The threaded tube is slidably connected to the threaded rod through the limiting blocks and limiting grooves.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a stamping positioning mechanism for automotive parts, which has the following advantages:

[0016] By cooperating with four sets of symmetrically distributed limiting frames and linkage push rods, clamping force can be applied synchronously from the four corners of the parts, ensuring precise alignment between the material center and the mold cavity, avoiding misalignment caused by dimensional tolerances. The transmission structure of the slide, rack, and gear enables the four sets of limiting frames to move synchronously. Combined with the elastic reset function of the torsion spring, it not only ensures clamping stability but also adapts to material deformation during stamping, reducing the risk of rigid interference. The use of a distance sensor and baffle to monitor the position of the upper mold base in real time and feed back to the adjustment mechanism enables dynamic fine-tuning of the mounting frame, ensuring the coordination between the positioning mechanism and the mold movement during stamping. The two-stage lifting rod, combined with the two-stage adjustment of the threaded rod and threaded tube, can flexibly adjust the height of the mounting frame to adapt to the positioning requirements of parts of different specifications. At the same time, the sliding design of the limiting groove and limiting block enhances the stability of the structure, avoids offset during adjustment, and significantly improves positioning accuracy and production efficiency. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of a partially disassembled structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the limiting mechanism of this utility model;

[0021] Figure 4 This utility model Figure 3 Enlarged schematic diagram of the structure at point A in the diagram;

[0022] Figure 5 This is a schematic diagram of the adjustment mechanism of this utility model;

[0023] Figure 6 This utility model Figure 5 Enlarged schematic diagram of the structure at point B in the diagram.

[0024] In the diagram: 1. Base; 2. Upper mold base; 3. Lower mold base; 4. Components; 5. Mounting frame; 6. Limiting mechanism; 601. Limiting frame; 602. First push rod; 603. Second push rod; 604. Slide; 605. Rack; 606. Gear; 607. Mounting shaft; 608. Torsion spring; 609. Cylinder; 610. Slide rod; 611. Spring; 7. Adjusting mechanism; 701. Mounting rod; 702. First lifting rod; 703. Second lifting rod; 704. Threaded rod; 705. Limiting groove; 706. Threaded tube; 707. Limiting block; 708. Distance sensor; 8. Baffle. Detailed Implementation

[0025] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0026] Figures 1-6In one embodiment of this utility model, a stamping positioning mechanism for automotive parts includes a base 1, an upper die base 2, and a lower die base 3. A component 4 is disposed between the upper die base 2 and the lower die base 3. A mounting frame 5 is provided on the base 1, and a limiting mechanism 6 for the component 4 is provided within the mounting frame 5. An adjusting mechanism 7 for adjusting the position of the mounting frame 5 is provided on the base 1. The limiting mechanism 6 includes four sets of limiting brackets 601 symmetrically distributed within the mounting frame 5, with the four sets of limiting brackets 601 distributed at the four corners of the component 4. Two sets of symmetrically distributed first pushers are slidably mounted within the mounting frame 5. The system includes a rod 602 and two sets of symmetrically distributed second push rods 603. The two sets of first push rods 602 and second push rods 603 are perpendicularly distributed. The limiting frame 601 is slidably connected to one set of first push rods 602 and one set of second push rods 603 respectively. A slide 604 is provided between each set of first push rods 602 and each set of second push rods 603. The outer end of the slide 604 is fixedly connected to the corresponding first push rod 602 or second push rod 603 respectively. The adjusting mechanism 7 includes a distance sensor 708 fixedly installed on the mounting frame 5. The upper mold base 2 is fixedly installed with... The baffle 8 and distance sensor 708 are positioned opposite to the baffle 8. Through the cooperation of four symmetrically distributed limit frames 601 and linkage push rods, clamping force can be applied synchronously from the four corners of component 4, ensuring precise alignment of the material center with the mold cavity and avoiding misalignment caused by dimensional tolerances. The transmission structure of the slide 604, rack 605, and gear 606 enables the four limit frames 601 to move synchronously. Combined with the elastic reset function of the torsion spring 608, this ensures clamping stability and allows for adaptive material deformation during stamping, reducing the risk of rigid interference. The distance sensor 708, in conjunction with the baffle 8, monitors the position of the upper die holder 2 in real time and feeds it back to the adjustment mechanism 7, enabling dynamic fine-tuning of the mounting frame 5. This ensures the coordination between the positioning mechanism and the die movement during the stamping process. The two-stage lifting rod, combined with the threaded rod 704 and the threaded tube 706, allows for flexible adjustment of the height of the mounting frame 5 to meet the positioning requirements of different specifications of parts 4. Meanwhile, the sliding design of the limiting groove 705 and the limiting block 707 enhances the stability of the structure, avoids deviation during the adjustment process, and significantly improves positioning accuracy and production efficiency.

[0027] In this embodiment, reference Figure 3 , Figure 4As shown, racks 605 are fixedly mounted on both sets of slides 604, and gears 606 are provided between the two sets of racks 605. The gears 606 mesh with the two sets of racks 605 respectively. The gears 606 are rotatably connected to the mounting frame 5 through the mounting shaft 607. A torsion spring 608 is sleeved on the mounting shaft 607, and the two ends of the torsion spring 608 are fixedly connected to the gear 606 and the mounting frame 5 respectively. A cylinder 609 is fixedly mounted inside the mounting frame 5. The lower set of slides 604 is fixedly connected to the output end of the piston rod of the cylinder 609. A slide rod 610 corresponding to the slide 604 is fixedly mounted inside the mounting frame 5. The slide 604 and the corresponding slide rod 610 are slidably sleeved. Two sets of symmetrically distributed springs 611 are sleeved on the slide rod 610, and the two sets of springs 611 are connected to each other. The ends are fixedly connected to the slide 604 and the mounting frame 5 respectively. When the cylinder 609 pushes the lower slide 604 to move, the slide 604 drives the rack 605 to slide horizontally. Through the meshing transmission of the gear 606, the rack 605 on the other side moves in the opposite direction, thereby realizing the synchronous movement of the two sets of slides 604 towards or away from each other. The slide 604 is linked by the first push rod 602 and the second push rod 603 to four sets of limit frames 601, so that they synchronously contract or expand along the four corners of the component 4 to ensure clamping centering. The torsion spring 608 stores energy when the gear 606 rotates and provides a reset force when the cylinder 609 retracts, so that the limit frame 601 automatically returns to its position. The cooperation between the slide rod 610 and the spring 611 can buffer the vibration during the stamping process, avoid rigid impact, and maintain the stability of the limit.

[0028] In this embodiment, reference Figure 5 and Figure 6As shown, the adjustment mechanism 7 also includes a mounting rod 701 fixedly mounted on the base 1. A first lifting rod 702 is slidably mounted inside the mounting rod 701, and a second lifting rod 703 is slidably mounted inside the first lifting rod 702. The end of the second lifting rod 703 away from the mounting rod 701 is fixedly connected to the mounting frame 5. A threaded rod 704 is rotatably mounted inside the mounting rod 701. The upper end of the threaded rod 704 passes through the first lifting rod 702 and is threadedly connected to the first lifting rod 702. A threaded tube 706 is rotatably mounted inside the first lifting rod 702, and the upper end of the threaded tube 706 passes through the second lifting rod 703 and is threadedly connected to the second lifting rod 703. Two sets of symmetrically distributed limiting grooves 705 are provided on the threaded rod 704, and two sets of symmetrically distributed limiting blocks 707 are provided inside the threaded tube 706. The limiting blocks 707 and the limiting grooves 705 are correspondingly arranged. 06 is slidably sleeved with threaded rod 704 through limiting block 707 and limiting groove 705. The motor in mounting rod 701 drives threaded rod 704 to rotate. Since threaded rod 704 and first lifting rod 702 are threadedly engaged, its rotation drives first lifting rod 702 to move up and down along mounting rod 701. Threaded rod 704 is connected to limiting block 707 in threaded tube 706 through limiting groove 705 to form a sliding key connection, so that threaded tube 706 rotates synchronously with threaded rod 704. Since threaded tube 706 and second lifting rod 703 form another set of threaded pairs, the rotation of threaded tube 706 will drive second lifting rod 703 to move telescopically relative to first lifting rod 702. Distance sensor 708 monitors the position of baffle 8 of upper mold base 2 in real time. The closed-loop control system dynamically adjusts motor speed and direction accordingly to ensure that the positioning mechanism always maintains precise synchronization with mold movement.

[0029] In this embodiment, when the cylinder 609 pushes the lower slide 604 to move, the slide 604 drives the rack 605 to slide horizontally. Through the meshing transmission of the gear 606, the rack 605 on the other side moves in the opposite direction, thereby realizing the synchronous movement of the two sets of slides 604 towards or away from each other. The slide 604 is linked by the first push rod 602 and the second push rod 603 to four sets of limit frames 601, so that they synchronously contract or expand along the four corners of the component 4 to ensure clamping centering. The torsion spring 608 stores energy when the gear 606 rotates and provides a restoring force when the cylinder 609 retracts, so that the limit frame 601 automatically returns to its position. The cooperation between the slide rod 610 and the spring 611 can buffer the vibration during the stamping process, avoid rigid impact, and maintain the stability of the limit. The motor drives the threaded rod 704 to rotate. Since the threaded rod 704 and the first lifting rod 702 are threaded together, the rotation of the threaded rod 704 causes the first lifting rod 702 to move up and down along the mounting rod 701. The threaded rod 704 is connected to the limiting block 707 in the threaded tube 706 through the limiting groove 705, so that the threaded tube 706 rotates synchronously with the threaded rod 704. Since the threaded tube 706 and the second lifting rod 703 form another set of threaded pairs, the rotation of the threaded tube 706 will drive the second lifting rod 703 to move in extension and retraction relative to the first lifting rod 702. The distance sensor 708 monitors the position of the baffle 8 of the upper mold base 2 in real time. The closed-loop control system dynamically adjusts the motor speed and direction accordingly to ensure that the positioning mechanism always maintains precise synchronization with the mold movement.

[0030] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0031] It should be noted that 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.

[0032] 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 stamping positioning mechanism for automotive parts, comprising a base (1), an upper die base (2), and a lower die base (3), characterized in that: A component (4) is provided between the upper mold base (2) and the lower mold base (3). A mounting frame (5) is provided on the machine base (1). A limiting mechanism (6) for the component (4) is provided inside the mounting frame (5). An adjustment mechanism (7) for adjusting the position of the mounting frame (5) is provided on the machine base (1). The limiting mechanism (6) includes four sets of limiting frames (601) symmetrically distributed within the mounting frame (5). The four sets of limiting frames (601) are located at the four corners of the component (4). Two sets of symmetrically distributed first push rods (602) and two sets of symmetrically distributed second push rods (603) are slidably installed within the mounting frame (5). The two sets of first push rods (602) and second push rods (603) are perpendicular to each other. The limiting frame (601) is respectively connected to one set of first push rods (602) and one set of second push rods (603). 603) Sliding connection, a slide (604) is provided between the two sets of first push rods (602) and the two sets of second push rods (603). The outer end of the slide (604) is fixedly connected to the corresponding first push rod (602) or second push rod (603). The adjustment mechanism (7) includes a distance sensor (708) fixedly installed on the mounting frame (5). A baffle (8) is fixedly installed on the upper mold base (2). The distance sensor (708) is arranged opposite to the baffle (8).

2. The stamping positioning mechanism for automotive parts according to claim 1, characterized in that: Both sets of slides (604) are fixedly mounted with racks (605), and gears (606) are provided between the two sets of racks (605). The gears (606) are meshed with the two sets of racks (605) respectively. The gears (606) are rotatably connected to the mounting frame (5) through the mounting shaft (607). A torsion spring (608) is sleeved on the mounting shaft (607), and the two ends of the torsion spring (608) are fixedly connected to the gear (606) and the mounting frame (5) respectively. A cylinder (609) is fixedly mounted in the mounting frame (5). The lower set of slides (604) is fixedly connected to the output end of the piston rod of the cylinder (609).

3. The stamping positioning mechanism for automotive parts according to claim 1, characterized in that: The mounting frame (5) is fixedly installed with a slide rod (610) corresponding to the slide (604). The slide (604) and the corresponding slide rod (610) are slidably connected. Two sets of symmetrically distributed springs (611) are sleeved on the slide rod (610), and the two ends of the two sets of springs (611) are fixedly connected to the slide (604) and the mounting frame (5) respectively.

4. The stamping positioning mechanism for automotive parts according to claim 1, characterized in that: The adjustment mechanism (7) also includes a mounting rod (701) fixedly installed on the base (1), a first lifting rod (702) is slidably installed in the mounting rod (701), a second lifting rod (703) is slidably installed in the first lifting rod (702), and the end of the second lifting rod (703) away from the mounting rod (701) is fixedly connected to the mounting frame (5).

5. The stamping positioning mechanism for automotive parts according to claim 4, characterized in that: A threaded rod (704) is rotatably installed inside the mounting rod (701). The upper end of the threaded rod (704) passes through the first lifting rod (702) and is threadedly connected to the first lifting rod (702). A threaded tube (706) is rotatably installed inside the first lifting rod (702), and the upper end of the threaded tube (706) passes through the second lifting rod (703) and is threadedly connected to the second lifting rod (703).

6. The stamping positioning mechanism for automotive parts according to claim 5, characterized in that: The threaded rod (704) has two sets of symmetrically distributed limiting grooves (705), and the threaded tube (706) has two sets of symmetrically distributed limiting blocks (707). The limiting blocks (707) and the limiting grooves (705) are correspondingly arranged, and the threaded tube (706) is slidably sleeved with the threaded rod (704) through the limiting blocks (707) and the limiting grooves (705).

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