Accurate fixing and clamping equipment for automobile assembly

Abstract

The invention relates to the technical field of automobile assembling and fixing equipment, and provides precise fixing and clamping equipment for automobile assembling, which comprises an assembling and machining table, a limiting groove is formed in the assembling and machining table, a movable groove is formed in the bottom of the assembling and machining table, and a clamping mechanism is mounted on the outer wall of the assembling and machining table. The top of the assembly machining table is fixedly connected with a positioning guide rail, and a groove is formed in the positioning guide rail. By starting a driving motor, a transmission gear fixedly connected with one end of a first rotating rod can rotate, a transmission fluted disc rotates along an assembly machining table, guide rods at all positions slide in a guiding mode along arc-shaped guide grooves, and four limiting movable plates slide in a guiding mode along positioning guide rails; and the effect of conveniently and stably clamping and limiting the automobile steering wheels of different models and sizes is achieved, and therefore an air bag restraint system, a multifunctional key and a steering sensor on the steering wheel can be conveniently assembled and calibrated.

Description

Technical Field

[0001] This invention relates to the field of automotive assembly and fixing equipment technology, and in particular to a precision fixing and clamping device for automotive assembly. Background Technology

[0002] In the automotive manufacturing industry, the precision of the assembly process directly determines the overall vehicle safety performance, structural stability, and service life. Precision clamping equipment, as a core auxiliary tool, plays a crucial role in positioning and maintaining the posture of components, serving as a fundamental support for ensuring assembly quality. As the automotive industry transforms towards new energy, lightweighting, and intelligentization, vehicle body structures are becoming increasingly complex, and components are exhibiting diversification, miniaturization, and composite material characteristics, placing higher demands on the precision, adaptability, and flexibility of clamping equipment. To address this, patent CN115319668B discloses an intelligent positioning fixture for automotive assembly. The fixed shaft is horizontally positioned and slidably mounted on a support frame. A support column is parallel to the fixed shaft, with one end fixed to the shaft away from the support frame. The clamping rods include straight clamping rods and curved clamping rods. The curved clamping rods have arc-shaped grooves extending along their length. The curved clamping rods are fitted onto the drive rod through the arc-shaped grooves, with one end of each curved clamping rod fixed to one end of the straight clamping rod. When the moving frame moves along the axis of the fixed shaft, it drives multiple clamping rods to move synchronously. When the pushing assembly slides downwards along the fixed shaft, it drives the moving frame to move away from the fixed shaft. The increased distance between the drive ring and the moving frame increases the distance between two clamping rods on the same drive rod, thereby increasing the clamping length on the workpiece and improving clamping stability. The existing technical solutions mentioned above have the following drawbacks: when in use, they cannot clamp and fix car steering wheels of different models and sizes, causing the car steering wheels to shift during assembly and processing, thereby affecting the assembly and calibration accuracy of airbags, multi-function buttons, and steering sensors. Summary of the Invention

[0003] The purpose of this invention is to provide a precision fixing and clamping device for automobile assembly, so as to solve the defect of existing precision fixing and clamping devices for automobile assembly that cannot clamp and fix automobile steering wheels of different models and sizes.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a precision fixing and clamping device for automobile assembly, including an assembly processing table; The assembly processing table has a limit groove inside, a movable groove at the bottom, a clamping mechanism on the outer wall, a positioning guide rail fixedly connected to the top, a groove inside the positioning guide rail, and a wedge block fixedly connected to the top of the positioning guide rail. A support frame is fixedly connected to the bottom of the assembly table. A drive motor is fixedly connected to the outer wall of the support frame. A first rotating rod is fixedly connected to the output shaft of the drive motor via a coupling. A transmission gear is fixedly connected to the top of the first rotating rod. A transmission gear is movably connected to the outer wall of the transmission gear. A second rotating rod is fixedly connected to the top of the transmission gear. An arc-shaped guide groove is formed inside the transmission gear. A guide rod is movably connected inside the arc-shaped guide groove. A limit movable plate is fixedly connected to the top of the guide rod. A support block is fixedly connected to the outer wall of the limit movable plate.

[0005] Preferably, the transmission gear forms a rotating structure with the assembly table via a first rotating rod, and the transmission gear meshes with the transmission gear disc.

[0006] Preferably, the transmission gear plate forms a rotating structure with the assembly table via the second rotating rod, and the transmission gear plate forms a sliding structure with the guide rod via the arc-shaped guide groove. The second rotating rod is located in the movable groove, and the limiting groove is symmetrically arranged with respect to the central axis of the assembly table.

[0007] Preferably, the arc-shaped guide grooves are arranged in a ring around the central axis of the transmission gear plate, and the guide rods form a sliding structure with the assembly table through the limiting grooves.

[0008] Preferably, a protruding plate is fixedly connected to the inner wall of the limiting movable plate, a first sliding groove is formed inside the limiting movable plate, a second sliding groove is formed on the inner side wall of the first sliding groove, a limiting block is movably connected inside the first sliding groove, a guide slider is fixedly connected to the outer wall of the limiting block, and a second return spring is fixedly connected to one side of the limiting block.

[0009] Preferably, the convex plate forms a sliding structure with the positioning guide rail through the groove, and the convex plate is symmetrically arranged with respect to the central axis of the limiting movable plate.

[0010] Preferably, the limiting movable plate forms a sliding structure with the limiting block through the first sliding groove, and the limiting movable plate forms a sliding structure with the guide slider through the second sliding groove.

[0011] Preferably, a guide frame is fixedly connected to the top of the limiting movable plate, a guide protrusion is fixedly connected to the inner wall of the guide frame, a slide is movably connected to the inner wall of the guide frame, an avoidance groove is provided inside the slide, a first return spring is fixedly connected to the top of the slide, a positioning pressure plate is fixedly connected to the outer wall of the slide, and an airbag is fixedly connected to the bottom of the positioning pressure plate.

[0012] Preferably, the slide plate forms a sliding structure through the avoidance groove and the guide protrusion, and the slide plate and the guide frame form a sliding structure.

[0013] Preferably, the guide ridges are symmetrically arranged around the central axis of the guide frame, and the slide plate and the wedge block form a sliding structure.

[0014] The present invention provides a precision fixing and clamping device for automobile assembly, which has the following advantages: By setting up a clamping mechanism, positioning guide rail and groove, the transmission gear fixedly connected to one end of the first rotating rod can be rotated by starting the drive motor, so that the transmission gear plate can be rotated along the assembly processing table, so that the guide rods at each position can slide along the arc-shaped guide groove, and so that the four limit movable plates can slide along the positioning guide rail. This achieves the effect of stabilizing and limiting the car steering wheel of different models and sizes, thereby facilitating the assembly and calibration of the airbag, multi-function buttons and steering sensor on the steering wheel. Furthermore, the combined action of the convex plate and the groove can improve the stability of the limiting movable plate sliding along the positioning guide rail, thereby further improving the stability of clamping the car steering wheel. Furthermore, by moving the limiting movable plate, the limiting block is driven to contact the outer wall of the steering wheel first, so that the limiting block slides along the first slide groove and squeezes the second return spring. Under the cooperation of the limiting block and the two support blocks, the limiting movable plate can be adapted to the shape of the car steering wheel for adaptive adjustment, which further improves the stability of clamping and fixing the car steering wheel. With the clamping mechanism and wedge block, the guide frame moves as the limiting movable plate moves, causing the slide to slide along the wedge block. Under the compression of the first return spring, the slide slides down along the guide frame, causing the airbag fixedly connected to the bottom of the positioning pressure plate to move down, which facilitates the downward pressure and limiting of the car steering wheel. Under the action of the airbag, it can prevent the positioning pressure plate from rubbing against the car steering wheel. Furthermore, the combined effect of the guide ridge and the clearance groove can improve the stability of the slide plate as it slides along the guide frame, making it easier to press down and position the car steering wheel more stably. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a bottom-view structural diagram of the present invention; Figure 3 This is a three-dimensional structural diagram of the assembly and processing table of the present invention; Figure 4 This is a bottom view of the assembly table structure of the present invention; Figure 5 This is a three-dimensional structural diagram of the transmission gear disc of the present invention; Figure 6 This is a three-dimensional cross-sectional view of the limiting movable plate of the present invention; Figure 7 This is a schematic diagram showing the disassembled structure of the limiting movable plate of the present invention; Figure 8 This is a schematic diagram showing the disassembled structure of the guide frame of the present invention.

[0016] The reference numerals in the figure are as follows: 1. Assembly table; 2. Limiting groove; 3. Movable groove; 4. Clamping mechanism; 41. Support frame; 42. Drive motor; 43. First rotating rod; 44. Transmission gear; 45. Transmission gear plate; 46. Second rotating rod; 47. Arc-shaped guide groove; 48. Guide rod; 481. Limiting movable plate; 4811. Guide frame; 4812. Guide protrusion; 4813. Slide plate; 4814. Clearance groove; 4815. First return spring; 4816. Positioning pressure plate; 4817. Airbag; 482. Protrusion plate; 483. First slide groove; 484. Second slide groove; 485. Limiting block; 486. Guide slider; 487. Second return spring; 49. Support block; 5. Positioning guide rail; 6. Groove; 7. Wedge block. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1-8 The present invention provides a precision fixing and clamping device for automobile assembly, including an assembly processing table 1.

[0019] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, the assembly table 1 has a limiting groove 2 inside, a movable groove 3 at the bottom, a clamping mechanism 4 on the outer wall, a positioning guide rail 5 fixedly connected to the top, a groove 6 inside the positioning guide rail 5, a wedge block 7 fixedly connected to the top of the positioning guide rail 5, a support frame 41 fixedly connected to the bottom, a drive motor 42 fixedly connected to the outer wall of the support frame 41, a first rotating rod 43 fixedly connected to the output shaft of the drive motor 42 via a coupling, a transmission gear 44 fixedly connected to the top of the first rotating rod 43, a transmission gear 45 movably connected to the outer wall of the transmission gear 44, a second rotating rod 46 fixedly connected to the top of the transmission gear 45, and an arc-shaped guide groove 4 inside the transmission gear 45. 7. A guide rod 48 is movably connected inside the arc-shaped guide groove 47. A limiting movable plate 481 is fixedly connected to the top of the guide rod 48. A support block 49 is fixedly connected to the outer wall of the limiting movable plate 481. The transmission gear 44 forms a rotating structure with the assembly table 1 through the first rotating rod 43. The transmission gear 44 is meshed with the transmission gear disk 45. The transmission gear disk 45 forms a rotating structure with the assembly table 1 through the second rotating rod 46. The transmission gear disk 45 forms a sliding structure with the guide rod 48 through the arc-shaped guide groove 47. The second rotating rod 46 is located in the movable groove 3. The limiting groove 2 is symmetrically arranged around the central axis of the assembly table 1. The arc-shaped guide groove 47 is arranged in a ring around the central axis of the transmission gear disk 45. The guide rod 48 forms a sliding structure with the assembly table 1 through the limiting groove 2.

[0020] By placing the steering wheel on the assembly table 1 and starting the drive motor 42, the transmission gear 44, which is fixedly connected to one end of the first rotating rod 43, can rotate. Since the transmission gear 44 is meshed with the transmission gear plate 45, the transmission gear plate 45 can rotate along the assembly table 1 under the action of the second rotating rod 46. This causes the guide rods 48 at each position to slide along the arc-shaped guide groove 47 opened inside the second rotating rod 46, and the guide rods 48 to move towards the center along the limiting groove 2. This causes the four limiting movable plates 481 to slide along the positioning guide rail 5 and squeeze and limit the steering wheel.

[0021] Reference Figure 6 and Figure 7As shown, a protruding plate 482 is fixedly connected to the inner wall of the limiting movable plate 481. A first sliding groove 483 is provided inside the limiting movable plate 481. A second sliding groove 484 is provided on the inner side wall of the first sliding groove 483. A limiting block 485 is movably connected inside the first sliding groove 483. A guide slider 486 is fixedly connected to the outer wall of the limiting block 485. A second return spring 487 is fixedly connected to one side of the limiting block 485. The protruding plate 482 forms a sliding structure with the positioning guide rail 5 through the groove 6. The protruding plate 482 is symmetrically arranged about the central axis of the limiting movable plate 481. The limiting movable plate 481 forms a sliding structure with the limiting block 485 through the first sliding groove 483. The limiting movable plate 481 forms a sliding structure with the guide slider 486 through the second sliding groove 484.

[0022] As the limiting movable plate 481 moves, the limiting block 485 first contacts the outer wall of the steering wheel. As the limiting movable plate 481 continues to move, the limiting block 485 slides along the first slide groove 483 and squeezes the second return spring 487. At this time, the guide slider 486 slides along the second slide groove 484. With the cooperation of the limiting block 485 and the two support blocks 49, the limiting movable plate 481 can be adaptively adjusted to fit the shape of the car steering wheel.

[0023] Reference Figure 1 , Figure 3 , Figure 6 and Figure 8 As shown, a guide frame 4811 is fixedly connected to the top of the limiting movable plate 481, a guide protrusion 4812 is fixedly connected to the inner wall of the guide frame 4811, a slide plate 4813 is movably connected to the inner wall of the guide frame 4811, an avoidance groove 4814 is provided inside the slide plate 4813, a first return spring 4815 is fixedly connected to the top of the slide plate 4813, a positioning pressure plate 4816 is fixedly connected to the outer wall of the slide plate 4813, and an airbag 4817 is fixedly connected to the bottom of the positioning pressure plate 4816. The slide plate 4813 forms a sliding structure with the guide protrusion 4812 through the avoidance groove 4814, and the slide plate 4813 forms a sliding structure with the guide frame 4811. The guide protrusion 4812 is symmetrically arranged about the central axis of the guide frame 4811, and the slide plate 4813 forms a sliding structure with the wedge block 7.

[0024] As the limiting movable plate 481 moves, it drives the guide frame 4811 to move synchronously, causing the slide plate 4813 to slide along the wedge block 7. Under the compression of the first return spring 4815, the slide plate 4813 slides down along the guide frame 4811. At this time, the guide protrusion 4812 slides along the clearance groove 4814, causing the airbag 4817 fixedly connected to the bottom of the positioning pressure plate 4816 to move down, so that the airbag 4817 presses down and limits the car steering wheel. Under the action of the first return spring 4815, the positioning pressure plate 4816 can be adapted to the height of the car steering wheel.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A precision clamping and fixing device for automobile assembly, comprising an assembly processing table (1); Its features are: The assembly processing table (1) has a limiting groove (2) inside, a movable groove (3) at the bottom of the assembly processing table (1), a clamping mechanism (4) installed on the outer wall of the assembly processing table (1), a positioning guide rail (5) fixedly connected to the top of the assembly processing table (1), a groove (6) inside the positioning guide rail (5), and a wedge block (7) fixedly connected to the top of the positioning guide rail (5). The bottom of the assembly processing table (1) is fixedly connected to a support frame (41), and the outer wall of the support frame (41) is fixedly connected to a drive motor (42). The output shaft of the drive motor (42) is fixedly connected to a first rotating rod (43) through a coupling. The top of the first rotating rod (43) is fixedly connected to a transmission gear (44). The outer wall of the transmission gear (44) is movably connected to a transmission gear disc (45). The top of the transmission gear disc (45) is fixedly connected to a second rotating rod (46). An arc-shaped guide groove (47) is provided inside the transmission gear disc (45). A guide rod (48) is movably connected inside the arc-shaped guide groove (47). The top of the guide rod (48) is fixedly connected to a limit movable plate (481). The outer wall of the limit movable plate (481) is fixedly connected to a support block (49).

2. The precision fixing and clamping equipment for automobile assembly according to claim 1, characterized in that: The transmission gear (44) forms a rotating structure with the assembly table (1) through the first rotating rod (43), and the transmission gear (44) meshes with the transmission gear disk (45).

3. The precision fixing and clamping equipment for automobile assembly according to claim 1, characterized in that: The transmission gear plate (45) forms a rotating structure with the assembly processing table (1) through the second rotating rod (46). The transmission gear plate (45) forms a sliding structure with the guide rod (48) through the arc-shaped guide groove (47). The second rotating rod (46) is located in the movable groove (3). The limiting groove (2) is symmetrically arranged with respect to the central axis of the assembly processing table (1).

4. The precision fixing and clamping device for automobile assembly according to claim 1, characterized in that: The arc-shaped guide groove (47) is arranged in a ring around the central axis of the transmission gear plate (45), and the guide rod (48) forms a sliding structure with the assembly table (1) through the limiting groove (2).

5. The precision fixing and clamping equipment for automobile assembly according to claim 1, characterized in that: The inner wall of the limiting movable plate (481) is fixedly connected to a protruding plate (482). The inner wall of the limiting movable plate (481) is provided with a first sliding groove (483). The inner side wall of the first sliding groove (483) is provided with a second sliding groove (484). The inner wall of the first sliding groove (483) is movably connected to a limiting block (485). The outer wall of the limiting block (485) is fixedly connected to a guide slider (486). The side of the limiting block (485) is fixedly connected to a second return spring (487).

6. The precision fixing and clamping device for automobile assembly according to claim 5, characterized in that: The convex plate (482) forms a sliding structure with the positioning guide rail (5) through the groove (6), and the convex plate (482) is symmetrically arranged with respect to the central axis of the limiting movable plate (481).

7. The precision fixing and clamping device for automobile assembly according to claim 5, characterized in that: The limiting movable plate (481) forms a sliding structure with the limiting block (485) through the first sliding groove (483), and the limiting movable plate (481) forms a sliding structure with the guide slider (486) through the second sliding groove (484).

8. The precision fixing and clamping device for automobile assembly according to claim 1, characterized in that: The top of the limiting movable plate (481) is fixedly connected to a guide frame (4811), the inner wall of the guide frame (4811) is fixedly connected to a guide protrusion (4812), the inner wall of the guide frame (4811) is movably connected to a slide plate (4813), the slide plate (4813) is provided with an avoidance groove (4814), the top of the slide plate (4813) is fixedly connected to a first return spring (4815), the outer wall of the slide plate (4813) is fixedly connected to a positioning pressure plate (4816), and the bottom of the positioning pressure plate (4816) is fixedly connected to an airbag (4817).

9. The precision fixing and clamping device for automobile assembly according to claim 8, characterized in that: The sliding plate (4813) forms a sliding structure with the guide protrusion (4812) through the clearance groove (4814), and the sliding plate (4813) forms a sliding structure with the guide frame (4811).

10. A precision fixing and clamping device for automobile assembly according to claim 8, characterized in that: The guide ridge (4812) is symmetrically arranged around the central axis of the guide frame (4811), and the slide plate (4813) and the wedge block (7) form a sliding structure.

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