Automobile part machining positioning device

Abstract

The utility model relates to the technical field of automobile parts processing, and disclose a kind of automobile parts processing positioning device, including lifting platform, fixed seat, positioning disc, positive and negative motor, adjusting carousel etc. structure, the device is adjusted carousel by positive and negative motor linkage, drive positioning arm sliding in positioning disc sliding slot, realize the horizontal direction accurate positioning of different specifications parts, utilize stepper motor linkage screw rod, second stepper motor linkage second screw rod, cooperate with limiting rod, realize the accurate height adjustment of lifting platform vertical direction, the inner recessed arc contact rubber pad of positioning arm end, increase the contact area with part, improve positioning compactness, compared with traditional positioning device, the device does not need to frequently replace fixture, overcome the defect of inconvenient adjustment, precision relies on artificial, realize flexible adaptation different parts, high-precision positioning, significantly save cost and improve production efficiency The technical effect of benefit, improve the quality of whole car manufacturing and enterprise economic benefit.

Description

Technical Field

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

[0002] In the automotive manufacturing industry, automotive component positioning devices are crucial equipment used to ensure that components maintain precise positioning during processing. Automotive components are diverse and complex, ranging from engine blocks to precision electronic components. The machining accuracy of each component directly affects the performance, safety, and reliability of the entire vehicle. To meet the ever-growing demands for high-precision and high-efficiency production in the automotive industry, precise positioning of components has become an indispensable part of the machining process. Only through precise positioning can the dimensional accuracy and geometric tolerances of components be guaranteed to meet design requirements, thereby achieving standardized production of components and high-quality assembly of the entire vehicle.

[0003] Traditional positioning devices for automotive parts processing have many limitations. Some traditional positioning devices use simple mechanical fixtures for positioning, which have poor adjustment flexibility and are difficult to adapt to parts of different specifications and shapes. When processing new products, it is often necessary to redesign and replace the fixtures, resulting in long production preparation cycles and high costs. In addition, the positioning accuracy of some traditional positioning devices relies on manual adjustment and experience judgment, which is prone to positioning deviations and cannot meet the high-precision machining requirements of the modern automotive industry. This lack of accuracy not only leads to an increase in the scrap rate of parts and increases production costs, but may also affect the performance and safety of the whole vehicle due to inaccurate assembly of parts, seriously restricting the high-quality development of the automotive manufacturing industry. To address these issues, we propose a positioning device for automotive parts processing. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an automotive parts processing positioning device that solves the aforementioned problems.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution: an automotive parts processing and positioning device, including a lifting platform; A fixed base is fixedly connected to the top of the lifting platform, and a positioning plate is fixedly connected to the top of the fixed base; The bottom of the positioning disk has three equally spaced grooves arranged in a ring. A positioning arm is slidably connected to one end of the inner wall of the chute, and the outer wall of one end of the positioning arm extends to the top of the positioning disk. A forward and reverse motor is fixedly connected to the bottom of the inner wall of the fixed base, and an adjustment turntable is fixedly connected to the top rotating shaft of the forward and reverse motor. The top of the adjusting turntable has three arc-shaped limiting grooves that are equidistantly distributed in a ring. The bottom end of the positioning arm is in sliding fit with one end of the inner wall of the arc-shaped limiting groove.

[0006] Preferably, a contact pad is fixedly connected to the outer wall of one end of the positioning arm; The output surface of the contact pad is concave arc-shaped.

[0007] Preferably, a fixed frame is provided below the lifting platform, and a transmission groove is provided on the inner wall of one side of the fixed frame; A stepper motor is fixedly connected to one side of the top of the fixed frame, and the bottom rotating shaft of the stepper motor extends to the top of the inner wall of the transmission groove; The bottom rotating shaft of the stepper motor is fixedly connected to a lead screw, and the bottom connecting shaft of the lead screw is movably connected to the bottom of the inner wall of the transmission groove.

[0008] Preferably, a second transmission groove is formed on the inner wall of the fixed frame away from the transmission groove, and a second stepper motor is fixedly connected to the top of the fixed frame away from the stepper motor. The bottom rotating shaft of the second stepper motor extends to the top of the inner wall of the second transmission groove; The second stepper motor has a second lead screw fixedly connected to its bottom rotating shaft, and the bottom connecting shaft of the second lead screw is movably connected to the bottom of the inner wall of the second transmission groove.

[0009] Preferably, the lead screw and the second lead screw are perpendicular to the horizontal plane.

[0010] Preferably, the fixing frame has parallel limiting grooves at both ends of the inner wall near the transmission groove. Limiting rods are fixedly connected to the upper and lower ends of the inner wall of the limiting groove; The two ends of the inner wall of the fixed frame near the second transmission groove are provided with parallel second limiting grooves; The upper and lower ends of the inner wall of the second limiting groove are fixedly connected to the second limiting rod.

[0011] Preferably, the outer wall of one side of the lifting platform is threaded to the lead screw, and the outer wall of the lifting platform near the lead screw is sleeved on one end of the outer wall of the limiting rod. The outer wall of the lifting platform away from the lead screw is threaded to one end of the outer wall of the second lead screw, and the outer wall of the lifting platform near the second lead screw is sleeved on one end of the outer wall of the second limiting groove.

[0012] Compared with the prior art, the present invention provides a positioning device for processing automotive parts, which has the following advantages: 1. Compared to traditional positioning devices, which often suffer from poor adjustment flexibility and difficulty in adapting to different specifications of parts, requiring frequent fixture changes that are both time-consuming and costly, this automotive parts processing positioning device uses a forward and reverse motor-linked adjustment turntable to drive the positioning arms to slide within the grooves at the bottom of the positioning plate. This allows for precise adjustment of the positioning arm positions. This design enables the three positioning arms to flexibly change their spacing according to the size of the parts, achieving fast and accurate horizontal positioning for everything from small precision electronic components to large engine blocks. Simultaneously, the lifting platform, via a stepper motor-linked lead screw and a second stepper motor-linked second lead screw, can be vertically adjusted to meet the height and position requirements of different processing equipment and processes. Compared to traditional devices, this significantly reduces the time and cost of changing fixtures, substantially improves production efficiency and equipment utilization, and meets the needs of modern automotive manufacturing for multi-variety, small-batch production.

[0013] 2. Compared to traditional positioning devices that rely on manual adjustment and experience, leading to unavoidable positioning deviations and high scrap rates that affect vehicle performance, this automotive parts processing positioning device achieves high-precision positioning through a sophisticated mechanical structure and transmission system. The bottom of the positioning arm slides in conjunction with the arc-shaped limiting groove of the adjusting turntable, precisely converting the rotational motion of the turntable into the linear sliding motion of the positioning arm, ensuring accurate movement. The concave arc-shaped design of the contact pad increases the contact area with the parts, further enhancing the tightness of the positioning. In the vertical direction, the lead screw and second lead screw, in conjunction with the stepper motor and second stepper motor, enable precise lifting of the lifting platform. The limiting rod and second limiting rod ensure stable lifting without deviation. This multi-structure synergy allows parts to achieve extremely high positioning accuracy in both horizontal and vertical directions, effectively reducing the scrap rate and providing a reliable guarantee for producing high-quality automotive parts, thus improving the performance and safety of the entire vehicle.

[0014] 3. Compared to traditional positioning devices, which suffer from inconvenient adjustment and insufficient precision, increasing fixture replacement costs and scrap losses, and impacting overall efficiency due to low production efficiency, this automotive parts processing positioning device effectively overcomes these problems with its flexible adjustment capabilities and high-precision positioning performance. On the one hand, it eliminates the need for frequent fixture changes, reducing the costs of fixture design, manufacturing, and replacement. On the other hand, high-precision positioning reduces the scrap rate, minimizing raw material waste and rework costs. Simultaneously, rapid and accurate positioning adjustment shortens production preparation time, improves equipment processing efficiency, and enables the production line to operate more efficiently. Furthermore, the device's rational structural design and stable and reliable collaborative operation of its components reduce equipment failures and maintenance frequency, further lowering maintenance costs. This multifaceted approach effectively controls costs, significantly improves production efficiency, and brings substantial economic benefits and competitive advantages to automotive manufacturing enterprises. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side view of the present invention; Figure 3 This is a schematic diagram of the positioning disc of this utility model; Figure 4 This is a cross-sectional view of the positioning disc of this utility model.

[0016] In the diagram: 1. Lifting platform; 2. Fixed base; 3. Positioning plate; 4. Slide groove; 5. Positioning arm; 6. Contact pad; 7. Forward and reverse motor; 8. Adjusting turntable; 9. Arc-shaped limit groove; 10. Fixed frame; 11. Transmission groove; 12. Stepper motor; 13. Lead screw; 14. Second transmission groove; 15. Second stepper motor; 16. Second lead screw; 17. Limit groove; 18. Limit rod; 19. Second limit groove; 20. Second limit rod. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0018] Please see Figure 1-4 A positioning device for processing automotive parts includes a lifting platform 1. The lifting platform 1 serves as a basic component that supports the upper structure and automotive parts. By moving vertically, the parts can be adjusted to different processing heights, providing a height adjustment basis to meet diverse processing needs. The top of the lifting platform 1 is fixedly connected to a fixed base 2, and the top of the fixed base 2 is fixedly connected to a positioning plate 3. The fixed base 2 is used to securely connect the lifting platform 1 and the positioning plate 3, ensuring the stability of the positioning plate 3 during the lifting process. The positioning plate 3 serves as a flat surface for placing components, providing a support platform for positioning operations. The bottom of the positioning disk 3 has three equally spaced grooves 4 arranged in a ring. The grooves 4 provide a track for the sliding of the positioning arm 5. The equally spaced ring design, together with the adjusting turntable 8, can realize the synchronous and symmetrical adjustment of the three positioning arms 5, so as to uniformly and stably position the parts horizontally. A positioning arm 5 is slidably connected to one end of the inner wall of the slide groove 4. The outer wall of one end of the positioning arm 5 extends to the top of the positioning disk 3. The positioning arm 5 slides in the slide groove 4 and can change its position on the positioning disk 3 according to the size of the part. Its structure extending to the top of the positioning disk 3 allows the contact pad 6 to directly contact the part, thereby achieving horizontal clamping and positioning of the part. A forward and reverse motor 7 is fixedly connected to the bottom of the inner wall of the fixed base 2. An adjustment turntable 8 is fixedly connected to the top rotating shaft of the forward and reverse motor 7. The forward and reverse motor 7 provides power for the rotation of the adjustment turntable 8. By controlling the rotation direction of the adjustment turntable 8 through forward and reverse rotation, the position of the positioning arm 5 can be flexibly adjusted to adapt to parts of different specifications. The top of the adjusting turntable 8 has three arc-shaped limiting grooves 9 that are evenly distributed in a ring. The arc-shaped limiting grooves 9 cooperate with the bottom of the positioning arm 5 to convert the rotational motion of the adjusting turntable 8 into the linear sliding motion of the positioning arm 5, while limiting the movement trajectory of the positioning arm 5 to ensure the accuracy and stability of the movement of the positioning arm 5. One end of the positioning arm 5 is in sliding fit with one end of the inner wall of the arc-shaped limiting groove 9, so that when the adjusting turntable 8 rotates, it can accurately drive the positioning arm 5 to slide in the slide groove 4, thereby realizing the adjustment of the clamping force and precise positioning of the parts in the horizontal direction.

[0019] A contact pad 6 is fixedly connected to the outer wall of one end of the positioning arm 5. The contact pad 6 increases the friction between the positioning arm 5 and the parts, prevents the parts from sliding during processing, and also plays a buffering role to avoid damage to the surface of the parts by the positioning arm 5. The output surface of the contact pad 6 is concave arc-shaped. The concave arc-shaped design can better fit the outer contour of automotive parts, increase the contact area, improve the tightness and stability of positioning, and ensure the accurate positioning of parts during processing.

[0020] A fixed frame 10 is provided below the lifting platform 1. A transmission groove 11 is provided on the inner wall of one side of the fixed frame 10. The fixed frame 10 provides a stable support structure for the entire device. The transmission groove 11 is used to install the rotating shaft of the lead screw 13 and the stepper motor 12, providing space and structural foundation for the vertical transmission of the lifting platform 1. A stepper motor 12 is fixedly connected to one side of the top of the fixed frame 10. The bottom rotating shaft of the stepper motor 12 extends to the top of the inner wall of the transmission groove 11. The stepper motor 12 serves as one of the power sources for the vertical movement of the lifting platform 1. By precisely controlling the rotation angle and speed, the lifting platform 1 can be accurately lifted and lowered to meet the requirements of different processing heights. A lead screw 13 is fixedly connected to the bottom rotating shaft of the stepper motor 12. The bottom connecting shaft of the lead screw 13 is movably connected to the bottom of the inner wall of the transmission groove 11. The lead screw 13 converts the rotational motion of the stepper motor 12 into the linear motion of the lifting platform 1. By utilizing the screw transmission principle, the lifting platform 1 can achieve stable and precise vertical lifting.

[0021] A second transmission groove 14 is provided on the inner wall of the fixed frame 10 away from the transmission groove 11. A second stepper motor 15 is fixedly connected to the top of the fixed frame 10 away from the stepper motor 12. The second transmission groove 14 is symmetrically arranged with the transmission groove 11, providing installation space for the second lead screw 16 and the second stepper motor 15. The second stepper motor 15 works in coordination with the stepper motor 12 to enhance the stability and accuracy of the lifting platform 1. The bottom rotating shaft of the second stepper motor 15 extends to the top of the inner wall of the second transmission groove 14, ensuring that the power of the second stepper motor 15 can be effectively transmitted to the second lead screw 16, and ensuring that the two sides of the lifting platform 1 rise and fall synchronously and stably. The second stepper motor 15 has a bottom rotating shaft fixedly connected to a second lead screw 16. The bottom connecting shaft of the second lead screw 16 is movably connected to the bottom of the inner wall of the second transmission groove 14. The second lead screw 16 and the lead screw 13 work together to make the lifting platform 1 uniformly stressed in the vertical direction, further improving the stability and positioning accuracy of the lifting.

[0022] Lead screw 13 and second lead screw 16 are perpendicular to the horizontal plane, ensuring that the lifting platform 1 can only move in the vertical direction, avoiding positioning deviation of parts due to tilting, and ensuring machining accuracy.

[0023] The inner wall of the fixed frame 10 near the transmission groove 11 has parallel limiting grooves 17 at both ends. The limiting grooves 17 are used to install the limiting rods 18 to guide and limit the movement of the lifting platform 1 and prevent the lifting platform 1 from deviating or shaking during the lifting process. Limiting rods 18 are fixedly connected to the upper and lower ends of the inner wall of the limiting groove 17. The limiting rods 18 cooperate with the lifting platform 1 to restrict its movement in the horizontal direction, ensuring that the lifting platform 1 rises and falls smoothly in the vertical direction, and improving the stability and accuracy of the lifting movement. The inner wall of the fixed frame 10 near the second transmission groove 14 has parallel second limiting grooves 19 at both ends. The second limiting grooves 19 are symmetrically arranged with the limiting grooves 17 to provide an installation position for the second limiting rod 20. Together with the limiting grooves 17 and the limiting rods 18, they limit the lifting platform 1 from both sides, thereby enhancing the stability of its lifting process. The upper and lower ends of the inner wall of the second limiting groove 19 are fixedly connected to the second limiting rod 20. The second limiting rod 20 cooperates with the lifting platform 1 to further ensure the accuracy of the vertical movement of the lifting platform 1, prevent it from swinging or deviating during the lifting process, and ensure the accuracy of the positioning of the parts.

[0024] The outer wall of one side of the lifting platform 1 is threaded to the lead screw 13. The outer wall of the lifting platform 1 near the lead screw 13 is sleeved on one end of the outer wall of the limiting rod 18. The threaded connection enables the lead screw 13 to rotate and drive the lifting platform 1 to rise and fall. The sleeve on the limiting rod 18 ensures that the lifting platform 1 maintains vertical stability during the rising and falling process, and avoids the lifting platform 1 from rotating due to the torque generated by the rotation of the lead screw. The outer wall of the lifting platform 1 away from the lead screw 13 is threaded to one end of the outer wall of the second lead screw 16. The outer wall of the lifting platform 1 near the second lead screw 16 is sleeved on one end of the outer wall of the second limiting groove 19. Through the threaded connection with the second lead screw 16 and the cooperation with the second limiting rod 20, the two sides of the lifting platform 1 rise and fall synchronously, ensuring that the positioning plate 3 always remains in a horizontal state, thus ensuring the reliability of the part positioning and the machining accuracy.

[0025] Working Principle: Firstly, in terms of horizontal positioning adjustment, the position of the positioning arm 5 is adjusted by the linkage of the forward and reverse motors 7 and the adjustment turntable 8. After the forward and reverse motors 7 at the bottom of the inner wall of the fixed base 2 are started, their top rotating shaft drives the adjustment turntable 8 to rotate. Since the top of the adjustment turntable 8 has three arc-shaped limiting grooves 9 distributed in a ring at equal intervals, and one end of the bottom of the positioning arm 5 is in sliding fit with one end of the inner wall of the arc-shaped limiting grooves 9, when the adjustment turntable 8 rotates, the position of the arc-shaped limiting grooves 9 changes, thereby causing the positioning arm 5 to slide in the sliding groove 4 at the bottom of the positioning plate 3. One end of the outer wall of the positioning arm 5 extends above the positioning plate 3, and one end of its outer wall is fixedly connected to a contact pad 6. As the positioning arm 5 slides, the three contact pads 6 can clamp and position the automotive parts placed on the positioning plate 3 in the horizontal direction. The output surface of the contact pad 6 is concave and arc-shaped. This design allows for better contact with the component surface, increasing the contact area and improving the stability and accuracy of positioning. For vertical height adjustment, the height of the lifting platform 1 is adjusted by linking the stepper motor 12 with the lead screw 13 and the second stepper motor 15 with the second lead screw 16. After the stepper motor 12 on the top side of the fixed frame 10 is started, its bottom rotating shaft drives the lead screw 13 to rotate. Since the outer wall of one side of the lifting platform 1 is threadedly connected to the lead screw 13, according to the principle of threaded transmission, the rotation of the lead screw 13 causes the lifting platform 1 to move up and down along the axial direction of the lead screw 13. Simultaneously, the outer wall of the lifting platform 1 near the lead screw 13 is sleeved onto one end of the outer wall of the limiting rod 18. The limiting rod 18 restricts the rotation of the lifting platform 1, allowing it to move only in the vertical direction, ensuring the stability of the lifting process. Similarly, after the second stepper motor 15 on the side of the top of the fixed frame 10 away from the stepper motor 12 is started, its bottom rotating shaft drives the second lead screw 16 to rotate. The outer wall of the lifting platform 1 away from the lead screw 13 is threadedly connected to one end of the outer wall of the second lead screw 16. The rotation of the second lead screw 16 will also cause the lifting platform 1 to move up and down. The outer wall of the lifting platform 1 near the second lead screw 16 is sleeved on one end of the outer wall of the second limiting groove 19. The second limiting rod 20 also plays a role in limiting rotation and ensuring vertical lifting. Through the coordinated work of the stepper motor 12 and the second stepper motor 15, the height of the lifting platform 1 can be precisely adjusted, so that the parts on the positioning plate 3 are at the appropriate processing height.

[0026] 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. An automobile parts processing positioning device, characterized by, include: Lifting platform (1); The top of the lifting platform (1) is fixedly connected to a fixed seat (2), and the top of the fixed seat (2) is fixedly connected to a positioning plate (3). The bottom of the positioning disk (3) has three equally spaced grooves (4) arranged in a ring. A positioning arm (5) is slidably connected to one end of the inner wall of the groove (4), and the outer wall of one end of the positioning arm (5) extends to the top of the positioning disk (3). A forward and reverse motor (7) is fixedly connected to the bottom of the inner wall of the fixed base (2), and an adjustment turntable (8) is fixedly connected to the top rotating shaft of the forward and reverse motor (7). The top of the adjusting turntable (8) is provided with three arc-shaped limiting grooves (9) that are distributed in a ring at equal intervals. The bottom end of the positioning arm (5) is in sliding fit with one end of the inner wall of the arc-shaped limiting groove (9).

2. The positioning device for machining of automobile parts as claimed in claim 1 wherein: A contact pad (6) is fixedly connected to the outer wall of one end of the positioning arm (5). The output surface of the contact pad (6) is concave arc-shaped.

3. The positioning device for machining of automobile parts as claimed in claim 1 wherein: A fixed frame (10) is provided below the lifting platform (1), and a transmission groove (11) is provided on the inner wall of one side of the fixed frame (10). A stepper motor (12) is fixedly connected to one side of the top of the fixed frame (10), and the bottom rotating shaft of the stepper motor (12) extends to the top of the inner wall of the transmission groove (11); The bottom rotating shaft of the stepper motor (12) is fixedly connected to a lead screw (13), and the bottom connecting shaft of the lead screw (13) is movably connected to the bottom of the inner wall of the transmission groove (11).

4. The positioning device for machining of automobile parts as claimed in claim 3 wherein: The inner wall of the fixed frame (10) away from the transmission groove (11) is provided with a second transmission groove (14), and the top of the fixed frame (10) away from the stepper motor (12) is fixedly connected to a second stepper motor (15). The bottom rotating shaft of the second stepper motor (15) extends to the top of the inner wall of the second transmission groove (14); The bottom rotating shaft of the second stepper motor (15) is fixedly connected to the second lead screw (16), and the bottom connecting shaft of the second lead screw (16) is movably connected to the bottom of the inner wall of the second transmission groove (14).

5. The positioning device for machining of automobile parts as claimed in claim 4 wherein: The lead screw (13) and the second lead screw (16) are perpendicular to the horizontal plane.

6. The positioning device for machining of automobile parts as claimed in claim 3 wherein: The fixed frame (10) has parallel limiting grooves (17) on both ends of the inner wall of the side near the transmission groove (11). Limiting rods (18) are fixedly connected to the upper and lower ends of the inner wall of the limiting groove (17). The fixed frame (10) has parallel second limiting grooves (19) at both ends of the inner wall of the side near the second transmission groove (14). The upper and lower ends of the inner wall of the second limiting groove (19) are fixedly connected to the second limiting rod (20).

7. The positioning device for machining of automobile parts as claimed in claim 6 wherein: The outer wall of one side of the lifting platform (1) is threadedly connected to the lead screw (13), and the outer wall of the lifting platform (1) near the lead screw (13) is sleeved on one end of the outer wall of the limiting rod (18); The outer wall of the lifting platform (1) away from the lead screw (13) is threaded to one end of the outer wall of the second lead screw (16), and the outer wall of the lifting platform (1) near the second lead screw (16) is sleeved on one end of the outer wall of the second limiting groove (19).

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