A positioning fixture for machining automotive parts
By designing a positioning fixture that includes a worktable, positioning components, and transmission components, and utilizing a transmission motor and hydraulic rod to achieve precise positioning and fixing of automotive parts, the problem of low processing accuracy and efficiency caused by manual adjustment errors in existing technologies is solved, and a highly efficient and high-precision positioning process is realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING HAIZHONG TECH CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-07-17
AI Technical Summary
Existing automotive parts machining positioning fixtures have errors during manual adjustment, resulting in low machining accuracy and efficiency.
A positioning fixture including a worktable, a positioning component, a transmission component, and a hydraulic rod was designed. The positioning rod is moved by a transmission motor driving gears and toothed plates, and the hydraulic rod and adjusting plate are used to accurately position and fix the parts.
It enables high-precision and rapid positioning and fixing of automotive parts, improving processing efficiency and reducing manual adjustment errors.
Smart Images

Figure CN224509434U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automotive parts processing technology, and in particular relates to a positioning fixture for automotive parts processing. Background Technology
[0002] Automotive parts refer to the basic units or components that constitute the overall structure of a car and realize its functions. They are the core components of the automotive industry. They work together through mechanical, electronic, chemical and other means to complete the core functions of a car, such as power transmission, driving control, safety protection and comfort experience.
[0003] In the process of automotive parts processing, in order to ensure processing accuracy and product quality, positioning fixtures are needed to position and fix automotive parts. However, existing automotive parts positioning fixtures require manual adjustment and fixing by workers. Manual adjustment is prone to errors and is slow, which reduces the processing accuracy and efficiency of parts. Utility Model Content
[0004] In view of the problems existing in the prior art, this utility model provides a positioning fixture for processing automotive parts that can overcome or at least partially solve the above problems.
[0005] This utility model is implemented as follows: a positioning fixture for processing automotive parts includes a worktable and a positioning assembly. The worktable includes a base and a platform body. The bottom of the platform body is fixedly connected to the top of the base. The positioning assembly includes two first positioning rods, two second positioning rods, two first connecting rods, and two second connecting rods. The bottoms of the two first positioning rods are movably connected to the front and rear sides of the top of the platform body, respectively. The bottoms of the two second positioning rods are movably connected to the left and right sides of the top of the platform body, respectively. The interiors of the two first positioning rods are movably connected to the front and rear sides of the surfaces of the two second positioning rods, respectively. The sides of the two first connecting rods near the two first positioning rods are fixedly connected to the surfaces of the two first positioning rods, respectively. The sides of the two second connecting rods near the two second positioning rods are fixedly connected to the surfaces of the two second positioning rods, respectively. The surfaces of the two first connecting rods and the surfaces of the two second connecting rods are movably connected to the interior of the platform body.
[0006] The worktable is used to support the positioning components;
[0007] The positioning component is used to position automotive parts.
[0008] To limit the movement of the two first connecting rods and the two second connecting rods, preferably, a partition is fixedly connected inside the platform. The partition has positioning holes inside. The bottoms of the two first connecting rods are movably connected to the top of the partition, and the tops of the two second connecting rods are movably connected to the bottom of the partition. A connecting assembly is provided inside the platform. The partition limits the movement of the two first connecting rods and the two second connecting rods, thereby improving the stability of the two first connecting rods and the two second connecting rods.
[0009] To move the two first positioning rods and two second positioning rods, preferably, the connecting assembly includes a drive motor, a drive gear, two first toothed plates, and two second toothed plates. The bottom of the drive motor is fixedly connected to the bottom of the base, the surface of the drive gear is movably connected to the interior of the positioning hole, the top of the output end of the drive motor is fixedly connected to the bottom of the drive gear, the bottom of each of the two first toothed plates is movably connected to the top of the partition, the side of each of the two first toothed plates near the two first connecting rods is fixedly connected to the surface of the two first connecting rods, the top of each of the two second toothed plates is movably connected to the bottom of the partition, the side of each of the two second toothed plates near the two second connecting rods is fixedly connected to the surface of the two second connecting rods, the surface of each of the two first toothed plates is meshed with the top of the surface of the drive gear, and the surface of each of the two second toothed plates is meshed with the bottom of the surface of the drive gear. The drive motor drives the drive gear to rotate, and during the rotation of the drive gear, the two first toothed plates drive the two first positioning rods to move towards the opposite end, and the two second toothed plates drive the two second positioning rods to move towards the opposite end.
[0010] In order to adjust the clamping according to the proportion of the parts, preferably, hydraulic rods are fixedly connected to opposite sides of the two first positioning rods, and adjusting plates are movably connected inside the two first positioning rods. The opposite sides of the two adjusting plates are fixedly connected to the output ends of the two hydraulic rods. Through the cooperation of the two hydraulic rods and the two adjusting plates, the front and rear sides of the parts are adjusted and fixed.
[0011] To prevent the first and second positioning rods from tilting, preferably, first sliding rods are fixedly connected to the left and right sides of the interior of the platform, and second sliding rods are fixedly connected to the front and rear sides of the interior of the platform. The surfaces of the two first sliding rods are slidably connected to the left and right sides of the interior of the two first positioning rods, and the surfaces of the two second sliding rods are slidably connected to the front and rear sides of the interior of the second positioning rods. The first sliding rods restrict the movement direction of the first positioning rods, and the second sliding rods restrict the movement direction of the second positioning rods, thereby preventing the first and second positioning rods from tilting or misaligning.
[0012] To prevent the first and second toothed plates from disengaging from the transmission gear, preferably, first limiting rods are fixedly connected to the left and right sides of the top of the partition, and second limiting rods are fixedly connected to the front and rear sides of the bottom of the partition. The surfaces of the two first limiting rods are slidably connected to the interior of the two first toothed plates, and the surfaces of the two second limiting rods are slidably connected to the interior of the two second toothed plates. The first and second limiting rods respectively limit the first and second toothed plates, thereby preventing misalignment of the first and second toothed plates.
[0013] To prevent the adjusting plates from tilting, preferably, two limiting plates are fixedly connected to opposite sides of the two adjusting plates, and the surfaces of the four limiting plates are slidably connected to the interior of the two first positioning rods. The movement direction of the adjusting plates is restricted by the two limiting plates, thereby preventing the adjusting plates from tilting.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] This utility model, by setting up structural components such as a workbench, base, platform, and positioning assembly, uses the workbench to support the positioning assembly, the positioning assembly to position automotive parts, a transmission assembly to drive the first and second positioning rods to move, and the use of hydraulic rods and adjusting plates to adjust and fix the front and rear sides of the automotive parts, thus achieving the effect of conveniently positioning and fixing automotive parts. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural schematic diagram provided in an embodiment of the present utility model;
[0017] Figure 2 This is a three-dimensional structural diagram of the body of the platform provided in this embodiment of the utility model;
[0018] Figure 3 This is a three-dimensional structural diagram of the positioning component provided in an embodiment of the present utility model;
[0019] Figure 4 This is a three-dimensional structural diagram of the connecting component provided in an embodiment of the present utility model;
[0020] Figure 5 This is a three-dimensional structural diagram of the partition provided in an embodiment of the present utility model.
[0021] In the diagram: 1. Workbench; 101. Base; 102. Platform; 2. Positioning assembly; 201. First positioning rod; 202. Second positioning rod; 203. First connecting rod; 204. Second connecting rod; 3. Partition; 4. Positioning hole; 5. Connecting assembly; 501. Drive motor; 502. Drive gear; 503. First gear plate; 504. Second gear plate; 6. Hydraulic rod; 7. Adjusting plate; 8. First slide rod; 9. Second slide rod; 10. First limit rod; 11. Second limit rod; 12. Limiting plate. Detailed Implementation
[0022] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.
[0023] The structure of this utility model will now be described in detail with reference to the accompanying drawings.
[0024] like Figures 1 to 5As shown in the figure, a positioning fixture for processing automotive parts provided by this utility model includes a worktable 1 and a positioning assembly 2. The worktable 1 includes a base 101 and a platform 102. The bottom of the platform 102 is fixedly connected to the top of the base 101. The positioning assembly 2 includes two first positioning rods 201, two second positioning rods 202, two first connecting rods 203, and two second connecting rods 204. The bottoms of the two first positioning rods 201 are movably connected to the front and rear sides of the top of the platform 102, respectively. The bottoms of the two second positioning rods 202 are movably connected to the left and right sides of the top of the platform 102, respectively. The interiors of the two first positioning rods 201 are movably connected to the front and rear sides of the surfaces of the two second positioning rods 202, respectively. One connecting rod 203 is fixedly connected to the surface of the two first positioning rods 201 on the side near the two first positioning rods 201, and the two second connecting rods 204 are fixedly connected to the surface of the two second positioning rods 202 on the side near the two second positioning rods 202. The surfaces of the two first connecting rods 203 and the two second connecting rods 204 are movably connected to the interior of the platform 102. The worktable 1 is used to support the positioning assembly 2. The positioning assembly 2 is used to position automotive parts. In order to limit the two first connecting rods 203 and the two second connecting rods 204, a partition 3 is fixedly connected to the interior of the platform 102. The partition 3 has positioning holes 4 inside, and the bottom of the two first connecting rods 203 is connected to the top of the partition 3. The two first connecting rods 203 and the two second connecting rods 204 are movably connected at their tops to the bottom of the partition 3. A connecting assembly 5 is provided inside the platform 102. The partition 3 limits the movement of the two first connecting rods 203 and the two second connecting rods 204, thereby improving their stability. To move the two first positioning rods 201 and the two second positioning rods 202, the connecting assembly 5 includes a drive motor 501, a drive gear 502, two first toothed plates 503, and two second toothed plates 504. The bottom of the drive motor 501 is fixedly connected to the bottom of the base 101. The surface of the drive gear 502 is movably connected to the inside of the positioning hole 4. The drive motor 501 outputs... The top of the first toothed plate 503 is fixedly connected to the bottom of the transmission gear 502. The bottom of each of the two first toothed plates 503 is movably connected to the top of the partition plate 3. The sides of each of the two first toothed plates 503 near the two first connecting rods 203 are fixedly connected to the surfaces of the two first connecting rods 203. The tops of each of the two second toothed plates 504 are movably connected to the bottom of the partition plate 3. The sides of each of the two second toothed plates 504 near the two second connecting rods 204 are fixedly connected to the surfaces of the two second connecting rods 204. The surfaces of each of the two first toothed plates 503 are meshed with the top of the surface of the transmission gear 502. The surfaces of each of the two second toothed plates 504 are meshed with the bottom of the surface of the transmission gear 502. The transmission gear 502 is rotated by the transmission motor 501.During the rotation of the transmission gear 502, the two first gear plates 503 drive the two first positioning rods 201 to move towards their opposite ends, and the two second gear plates 504 drive the two second positioning rods 202 to move towards their opposite ends. To adjust the clamping according to the component proportions, hydraulic rods 6 are fixedly connected to opposite sides of the two first positioning rods 201. Adjusting plates 7 are movably connected inside the two first positioning rods 201, and their opposite sides are fixedly connected to the output ends of the two hydraulic rods 6. Through the cooperation of the two hydraulic rods 6 and the two adjusting plates 7, the front and rear sides of the component are adjusted and fixed. To prevent the first positioning rods 201 and second positioning rods 202 from tilting, first sliding rods 8 are fixedly connected to the left and right sides inside the platform 102, and second sliding rods 9 are fixedly connected to the front and rear sides inside the platform 102. The surfaces of the two first sliding rods 8 are slidably connected to the left and right sides inside the two first positioning rods 201, and the surfaces of the two second sliding rods 9 are slidably connected to the front and rear sides inside the second positioning rods 202. The first sliding rods 8 restrict the movement of the first positioning rods 201. The second sliding rod 9 restricts the movement direction of the second positioning rod 202, thereby preventing the first positioning rod 201 and the second positioning rod 202 from tilting or misaligning. To prevent the first toothed plate 503 and the second toothed plate 504 from disengaging from the transmission gear 502, first limiting rods 10 are fixedly connected to the left and right sides of the top of the partition 3, and second limiting rods 11 are fixedly connected to the front and rear sides of the bottom of the partition 3. The surfaces of the two first limiting rods 10 are slidably connected to the interior of the two first toothed plates 503, and the surfaces of the two second limiting rods 11 are slidably connected to the interior of the two first toothed plates 503. The second toothed plate 504 is internally slidably connected, and the first limiting rod 10 and the second limiting rod 11 respectively limit the first toothed plate 503 and the second toothed plate 504, thereby preventing misalignment of the first toothed plate 503 and the second toothed plate 504. To prevent the adjusting plate 7 from tilting, two limiting plates 12 are fixedly connected to opposite sides of the two adjusting plates 7. The surfaces of the four limiting plates 12 are slidably connected to the interior of the two first positioning rods 201. The two limiting plates 12 restrict the movement direction of the adjusting plate 7, thereby preventing the adjusting plate 7 from tilting.
[0025] The working principle of this utility model:
[0026] When positioning automotive parts, the automotive parts are placed on top of the platform 102. The drive motor 501 is started, and the output end of the drive motor 501 drives the drive gear 502 to rotate. During the rotation of the drive gear 502, the two first toothed plates 503 and the two first connecting rods 203 drive the two first positioning rods 201 to move towards the opposite end. At the same time, the two second toothed plates 504 and the two second connecting rods 204 drive the two second positioning rods 202 to move towards the opposite end. The two second positioning rods 202 contact the left and right sides of the automotive parts to position the left and right sides of the automotive parts. The two hydraulic rods 6 are started, and the output ends of the two hydraulic rods 6 drive the two adjusting plates 7 to move closer to the automotive parts. The two adjusting plates 7 are used to position and fix the front and rear sides of the automotive parts.
[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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.
[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can exercise their rights without departing from the scope of the present utility model.
Claims
1. A positioning fixture for machining automotive parts, comprising a worktable (1) and a positioning assembly (2), characterized in that: The workbench (1) includes a base (101) and a platform (102). The bottom of the platform (102) is fixedly connected to the top of the base (101). The positioning assembly (2) includes two first positioning rods (201), two second positioning rods (202), two first connecting rods (203), and two second connecting rods (204). The bottoms of the two first positioning rods (201) are movably connected to the front and rear sides of the top of the platform (102), respectively. The bottoms of the two second positioning rods (202) are movably connected to the left and right sides of the top of the platform (102), respectively. The interior of the first positioning rod (201) is movably connected to the front and rear sides of the surfaces of the two second positioning rods (202), the sides of the two first connecting rods (203) near the two first positioning rods (201) are fixedly connected to the surfaces of the two first positioning rods (201), the sides of the two second connecting rods (204) near the two second positioning rods (202) are fixedly connected to the surfaces of the two second positioning rods (202), and the surfaces of the two first connecting rods (203) and the two second connecting rods (204) are movably connected to the interior of the platform (102). The worktable (1) is used to support the positioning assembly (2); The positioning component (2) is used to position automotive parts.
2. The positioning fixture for processing automotive parts as described in claim 1, characterized in that: The platform (102) is fixedly connected to a partition (3), and the partition (3) has a positioning hole (4) inside. The bottom of the two first connecting rods (203) is movably connected to the top of the partition (3), and the top of the two second connecting rods (204) is movably connected to the bottom of the partition (3). The platform (102) is provided with a connecting assembly (5).
3. The positioning fixture for processing automotive parts as described in claim 2, characterized in that: The connecting assembly (5) includes a drive motor (501), a drive gear (502), two first toothed plates (503), and two second toothed plates (504). The bottom of the drive motor (501) is fixedly connected to the bottom of the base (101). The surface of the drive gear (502) is movably connected to the inside of the positioning hole (4). The top of the output end of the drive motor (501) is fixedly connected to the bottom of the drive gear (502). The bottoms of the two first toothed plates (503) are movably connected to the top of the partition plate (3). The sides of the two first connecting rods (203) are fixedly connected to the surfaces of the two first connecting rods (203). The tops of the two second toothed plates (504) are movably connected to the bottom of the partition (3). The sides of the two second toothed plates (504) near the two second connecting rods (204) are fixedly connected to the surfaces of the two second connecting rods (204). The surfaces of the two first toothed plates (503) are meshed with the top of the surface of the transmission gear (502). The surfaces of the two second toothed plates (504) are meshed with the bottom of the surface of the transmission gear (502).
4. The positioning fixture for processing automotive parts as described in claim 1, characterized in that: Hydraulic rods (6) are fixedly connected to opposite sides of the two first positioning rods (201), and adjusting plates (7) are movably connected inside the two first positioning rods (201). The opposite sides of the two adjusting plates (7) are fixedly connected to the output ends of the two hydraulic rods (6).
5. The positioning fixture for processing automotive parts as described in claim 1, characterized in that: The platform (102) is fixedly connected to the left and right sides of the interior, and the platform (102) is fixedly connected to the front and rear sides of the interior, and the surfaces of the two first slide rods (8) are slidably connected to the left and right sides of the interior of the two first positioning rods (201), and the surfaces of the two second slide rods (9) are slidably connected to the front and rear sides of the interior of the second positioning rods (202).
6. The positioning fixture for processing automotive parts as described in claim 3, characterized in that: The top left and right sides of the partition (3) are fixedly connected with first limiting rods (10), and the bottom front and rear sides of the partition (3) are fixedly connected with second limiting rods (11). The surfaces of the two first limiting rods (10) are slidably connected to the interior of the two first toothed plates (503), and the surfaces of the two second limiting rods (11) are slidably connected to the interior of the two second toothed plates (504).
7. The positioning fixture for processing automotive parts as described in claim 4, characterized in that: Two limiting plates (12) are fixedly connected to opposite sides of the two adjusting plates (7), and the surfaces of the four limiting plates (12) are slidably connected to the interior of the two first positioning rods (201).