Combined clamp structure for automobile part machining

Abstract

The utility model relates to the technical field of automobile part machining, and discloses a combined clamp structure for automobile part machining, which comprises a first rotary threaded rod, a second rotary threaded rod, a third rotary threaded rod and a fourth rotary threaded rod, the first rotary threaded rod is sleeved with the threaded pipe sleeve in a threaded mode, and the threaded pipe sleeve is driven by the first rotary threaded rod to move; the multiple groups of connecting brackets are rotationally mounted on the outer ring of the threaded pipe sleeve; the plurality of arc-shaped inner supports are rotationally connected with the connecting bracket, and the arc-shaped inner supports are in sliding contact with the base; and the pipe sleeve main body is sleeved on the outer ring of the arc-shaped inner support. According to the clamping device, by rotating the first threaded rod, the threaded sleeve, the connecting support and the arc-shaped inner part, the axle shaft sleeve of the small automobile is accurately clamped, the problem of deformation caused by uneven clamping force is effectively solved, and the assembly precision and the operation stability of a mechanical system are improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, and in particular to a combined fixture structure for automotive parts processing. Background Technology

[0002] Automotive parts refer to the various components and parts that make up a car. They work together to ensure the car's functionality and performance. A car is composed of thousands of parts. When processing automotive parts, it is necessary to fix them in place to ensure that they can maintain the correct posture and position during processing. Therefore, automotive parts processing fixtures are used.

[0003] In the prior art, the precise clamping of axle sleeves is a crucial step in ensuring assembly accuracy during automobile manufacturing. However, due to the thinness of axle sleeves in small cars, uneven distribution of the applied clamping force can lead to significant pressure differences around the sleeve. This uneven pressure distribution can easily cause deformation in localized areas of the axle sleeve. Once deformation occurs, it not only affects the structural integrity of the component itself but, more importantly, reduces its assembly accuracy with other components. Ultimately, this can negatively impact the operating efficiency and performance of the entire mechanical system. Therefore, this application provides a combined fixture structure for processing automotive parts to meet this requirement. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a combined fixture structure for processing automotive parts to solve the problem that the deformation caused by uneven clamping force of existing small car half-shaft sleeves affects the assembly accuracy and mechanical system performance.

[0005] To address the aforementioned problems, this utility model is implemented through the following technical solution.

[0006] A modular fixture structure for machining automotive parts includes: a first rotating threaded rod rotatably mounted on a base; a threaded sleeve threaded onto the first rotating threaded rod, the threaded sleeve moving under the drive of the first rotating threaded rod; multiple sets of connecting brackets rotatably mounted on the outer ring of the threaded sleeve; multiple arc-shaped inner supports rotatably connected to the connecting brackets, the arc-shaped inner supports slidingly contacting the base; and a sleeve body fitted onto the outer ring of the arc-shaped inner supports.

[0007] A support frame is mounted on the base, and the base has a placement slot for use with the support frame. The support frame is cross-shaped and has a sliding groove. The arc-shaped inner support is slidably mounted on the support frame by a slider.

[0008] A mounting bracket is installed on the base; a second rotating threaded rod is rotatably installed on the base; a sliding member is threaded onto the second rotating threaded rod, and the sliding member moves under the drive of the second rotating threaded rod.

[0009] A telescopic component is mounted on the sliding component; two arc-shaped limiting plates, one of which is mounted on the telescopic component, and the arc-shaped limiting plate moves under the drive of the telescopic component.

[0010] Two sets of connecting ears are respectively installed on the two arc-shaped limiting plates; two sets of connecting rods are detachably installed on the two sets of connecting ears, and the two sets of connecting rods are used to connect the two arc-shaped limiting plates through the two sets of connecting ears.

[0011] The first rotating threaded rod is rotatably connected to the support frame. A first rotating handle is installed below the first rotating threaded rod, and a second rotating handle is installed on the second rotating threaded rod.

[0012] An anti-detachment block is installed above the rotating threaded rod, the arc-shaped limiting plate is located on the outer ring of the sleeve body, and flexible gaskets are installed on the inner ring of the arc-shaped limiting plate and the outer ring of the arc-shaped inner support.

[0013] This utility model provides a combined fixture structure for machining automotive parts. Compared with the prior art, it has the following advantages:

[0014] In the above solution, by setting up a rotating threaded rod, a threaded sleeve, a connecting bracket, and an arc-shaped inner support, precise clamping of the axle sleeve of a small car is achieved, effectively solving the problem of deformation of the axle sleeve caused by uneven distribution of clamping force in the prior art. The rotating threaded rod drives the threaded sleeve to move smoothly, providing a stable foundation for clamping. Multiple sets of connecting brackets can flexibly adjust their angles to adapt to the outer contour of the axle sleeve, so that the clamping force is evenly distributed along the circumference. The arc-shaped inner support cooperates with the connecting bracket to adaptively fit the inner wall of the axle sleeve, avoiding deformation caused by excessive local pressure. The main body of the sleeve is fitted on the outer ring of the arc-shaped inner support, which can accurately position the axle sleeve, which helps in the assembly of other components and improves the assembly accuracy and operational stability of the entire mechanical system. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the support frame structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the base structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the arc-shaped limiting plate structure of this utility model.

[0019] The attached figures are labeled as follows:

[0020] 1. Base; 2. Tube sleeve body; 3. Threaded tube sleeve; 4. Rotating threaded rod one; 5. Mounting bracket; 6. Rotating threaded rod two; 7. Arc-shaped inner support; 8. Connecting bracket; 9. Support frame; 10. Sliding component; 11. Telescopic component; 12. Connecting rod; 13. Arc-shaped limiting plate; 14. Connecting ear. Detailed Implementation

[0021] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of protection of the present invention.

[0022] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0023] Reference Figures 1-4 A modular fixture structure for machining automotive parts includes: a rotating threaded rod 4, rotatably mounted on a base 1; a threaded sleeve 3, threadedly fitted onto the rotating threaded rod 4, the threaded sleeve 3 moving under the drive of the rotating threaded rod 4; multiple sets of connecting brackets 8, rotatably mounted on the outer ring of the threaded sleeve 3; multiple arc-shaped inner supports 7, the arc-shaped inner supports 7 being rotatably connected to the connecting brackets 8, and the arc-shaped inner supports 7 slidingly contacting the base 1; and a sleeve body 2, fitted onto the outer ring of the arc-shaped inner supports 7.

[0024] The rotating threaded rod 4 serves as a driving element, providing power to the entire clamping structure through rotation. Its threaded structure can convert rotational motion into linear motion of the threaded sleeve 3, thereby driving other related components to adjust their positions, so as to achieve adaptation and clamping of the interior of half-shaft sleeves of different sizes.

[0025] The threaded sleeve 3 cooperates with the rotating threaded rod 4 and moves along the axial direction under the drive of the rotating threaded rod 4. Its main function is to transmit the movement of the rotating threaded rod 4 and at the same time provide a basis for the positioning and adjustment of the connecting bracket 8, so that the connecting bracket 8 can drive the arc-shaped inner support 7 to clamp the half-shaft sleeve during its movement.

[0026] The connecting bracket 8 can be used to fit the tube body 2 of different sizes by rotating the threaded rod 4 and the threaded tube sleeve 3, ensuring that the arc-shaped inner support 7 fits evenly against the outer wall of the half-shaft sleeve and achieves stable clamping.

[0027] The arc-shaped inner support 7 is in direct contact with the inner wall of the half-shaft sleeve. Its arc-shaped structure fits tightly against the half-shaft sleeve, preventing the half-shaft sleeve from shaking and deforming during clamping. At the same time, driven by the connecting bracket 8, it can automatically adjust its position and posture according to the shape and size of the half-shaft sleeve to ensure a uniform distribution of clamping force.

[0028] Alternatively, an elastic rubber airbag can be used. When not inflated, the airbag is placed inside the axle sleeve. When clamping is needed, the airbag is inflated, causing it to expand and fit tightly against the inner wall of the axle sleeve. The elasticity of the airbag can adapt to the shape of the axle sleeve, providing a uniform pressure distribution, thus replacing the curved inner support 7 to achieve a gentle and uniform clamping of the axle sleeve.

[0029] The support frame 9 is installed on the base 1. The base 1 has a placement groove for use with the support frame 9. The support frame 9 is cross-shaped and has a sliding groove. The arc-shaped inner support 7 is slidably installed on the support frame 9 by a slider.

[0030] As an important supporting component of the entire fixture structure, the support frame 9 provides a stable installation foundation for other key components such as the arc-shaped inner support 7.

[0031] Mounting bracket 5 is mounted on base 1; rotating threaded rod 6 is rotatably mounted on base 1; sliding member 10 is threadedly sleeved on rotating threaded rod 6, and sliding member 10 moves under the drive of rotating threaded rod 6.

[0032] The rotating threaded rod 6 is rotatably mounted on the base 1. Its threaded structure cooperates with the threaded sleeve 3 on the sliding member 10. When the rotating threaded rod 6 rotates, it can drive the sliding member 10 to move linearly along its axial direction, thereby adjusting the arc-shaped limiting plate 13.

[0033] By rotating the threaded rod 6 by an angle and number of turns, the movement distance of the sliding part 10 can be precisely controlled, thereby precisely adjusting the clamping force of the fixture on the half-shaft sleeve. This precise control capability is crucial to ensuring the safety and stability of the half-shaft sleeve during processing or inspection, and can effectively prevent problems such as deformation of the half-shaft sleeve due to excessive clamping or slippage due to excessive clamping.

[0034] The sliding member 10 is threaded onto the rotating threaded rod 6 and moves under the drive of the rotating threaded rod 6. It converts the rotational motion of the rotating threaded rod 6 into linear motion and transmits this motion and the force generated to other connected components, such as the telescopic member 11, thereby realizing the clamping operation of the half-shaft sleeve at different positions.

[0035] Telescopic component 11 is mounted on sliding component 10; two arc-shaped limiting plates 13, one of which is mounted on telescopic component 11, and the arc-shaped limiting plate 13 moves under the drive of telescopic component 11.

[0036] The telescopic component 11 is an electric telescopic rod or a hydraulic cylinder, which is electrically connected to an external controller. The controller controls the extension or retraction of the telescopic component 11. For larger-sized half-shaft sleeves, the telescopic component 11 can retract to provide sufficient space for the half-shaft sleeve. For smaller-sized half-shaft sleeves, the telescopic component 11 can extend so that the arc-shaped limiting plate 13 fits against the half-shaft sleeve.

[0037] The arc-shaped limiting plate 13 is installed on the telescopic component 11. Its main function is to limit the excessive expansion of the arc-shaped inner support 7. When the fixture clamps the half-shaft sleeve, the arc-shaped inner support 7 and the arc-shaped limiting plate 13 work together to control the deformation of the arc-shaped inner support 7 to a certain extent, thereby ensuring the uniform distribution of clamping force on the arc-shaped inner support 7. The arc-shaped inner support 7 and the arc-shaped limiting plate 13 will prevent it from deforming excessively, making the pressure on the arc-shaped inner support 7 more uniform, avoiding the situation of excessive or insufficient local pressure during processing, which helps to improve the reliability and stability of clamping, such as cutting force and vibration during processing, and ensure the accuracy and reliability of processing or inspection. In high-precision processing and inspection work, the role of the arc-shaped limiting plate 13 and the arc-shaped inner support 7 is particularly important.

[0038] Two sets of connecting ears 14 are respectively installed on two arc-shaped limiting plates 13; two sets of connecting rods 12 are detachably installed on the two sets of connecting ears 14, and the two sets of connecting rods 12 are used to connect the two arc-shaped limiting plates 13 through the two sets of connecting ears 14.

[0039] The connecting ears 14 are respectively installed on the two arc-shaped limiting plates 13. Their main function is to connect the arc-shaped limiting plates 13 with the connecting rod 12. Through this connection, the arc-shaped limiting plates 13 and the connecting rod 12 form a relatively stable structural unit.

[0040] Two sets of connecting rods 12 are respectively installed on two sets of connecting ears 14, and the two arc-shaped limiting plates 13 are connected by the connecting ears 14. This connection method makes the two arc-shaped limiting plates 13 form a stable frame structure, which enhances the overall rigidity and stability of the fixture. When clamping the half-shaft sleeve, the stable structure can better withstand external forces, reduce the deformation and vibration of the fixture, and improve the reliability and accuracy of clamping.

[0041] Rotary threaded rod 4 is rotatably connected to support frame 9. Rotary handle 1 is installed below rotary threaded rod 4, and rotary handle 2 is installed on rotary threaded rod 6.

[0042] The rotating threaded rod 4 is rotatably connected to the support frame 9, allowing the operator to drive the rotating threaded rod 4 to rotate by turning the handle. This connection method effectively transmits the manually applied rotational force to the threaded rod, which is then converted into linear motion along the axis of the threaded rod. For example, when it is necessary to support the inside of the half-shaft sleeve, the rotating threaded rod 4 is rotated by turning the handle, which drives the sliding parts 10 and other components that cooperate with it to move, thereby realizing the operation of supporting the inside of the half-shaft sleeve. This conversion from rotational motion to linear motion allows the clamp to accurately control the clamping force and position, adapting to half-shaft sleeves of different sizes and specifications.

[0043] An anti-detachment block is installed above the rotating threaded rod 4. The arc-shaped limiting plate 13 is located on the outer ring of the sleeve body 2. Flexible gaskets are installed on the inner ring of the arc-shaped limiting plate 13 and the outer ring of the arc-shaped inner support 7.

[0044] The flexible pad in the inner ring of the arc-shaped limiting plate 13 can act as a buffer when the clamp holds the half-shaft sleeve. When the arc-shaped inner support 7 applies clamping force to the half-shaft sleeve, the flexible pad can disperse the pressure and prevent the surface of the half-shaft sleeve from being subjected to excessive local pressure, which could cause deformation or damage. The presence of the flexible pad can make the clamping force more evenly distributed on the surface of the half-shaft sleeve, reducing the generation of indentations and scratches.

[0045] The flexible gasket increases the friction between the arc-shaped limiting plate 13 and the half-shaft sleeve. When the fixture holds the half-shaft sleeve, the friction prevents the half-shaft sleeve from sliding or rotating within the arc-shaped limiting plate 13, improving the stability of the clamping. When the fixture is subjected to external forces, the friction helps the fixture better resist changes in the position of the half-shaft sleeve, ensuring the reliability of the clamping.

[0046] During use, place the combined fixture on the workbench, ensuring the base 1 is placed stably to provide a stable support foundation for subsequent operations. Place the pipe sleeve body 2 to be processed or inspected inside the outer ring of the arc-shaped inner support 7. By rotating the rotating handle 1 below the rotating threaded rod 4, the rotating threaded rod 4 is driven to rotate. Since the rotating threaded rod 4 is rotatably connected to the support frame 9, its rotational motion is converted into linear motion of the threaded pipe sleeve 3 along the axial direction, thereby driving the connecting bracket 8 to move. This allows the arc-shaped inner support 7 to initially fit against the inner wall of the pipe sleeve body 2, achieving initial positioning and clamping of the pipe sleeve body 2. During rotation, carefully observe the contact between the arc-shaped inner support 7 and the pipe sleeve body 2 to avoid excessive clamping force that could damage the pipe sleeve body 2, ensuring uniform fit. Rotate the rotating handle 2 above the rotating threaded rod 6 to drive the rotating threaded rod 6 to rotate. Then rotate the rotating threaded rod 6 again. The rotational motion of the rotating threaded rod 6 is converted into linear motion of the sliding part 10 along its axial direction, thereby driving the telescopic part 11 to move, thereby adjusting the position of the arc-shaped limiting plate 13. Precise control of the rotation angle and number of turns of the rotating threaded rod 6 allows for accurate adjustment of the height matching between the arc-shaped limiting plate 13 and the sleeve body 2, thereby achieving precise control of the clamping force on the sleeve body 2. During adjustment, the state of the sleeve body 2 should be closely observed to ensure that the clamping force can firmly fix the sleeve body 2 without causing deformation. For larger-sized half-shaft sleeves, the telescopic component 11 can be retracted to provide sufficient space for the sleeve body 2; for smaller-sized sleeve bodies 2, the telescopic component 11 can be extended to allow the arc-shaped limiting plate 13 to fit against the sleeve body 2, further optimizing the clamping effect. After adjusting the clamping force, the contact between the arc-shaped inner support 7, the arc-shaped limiting plate 13, and other components and the half-shaft sleeve should be checked again to ensure stable and reliable clamping. If necessary, slight adjustments can be made to ensure that the fixture is in the best working condition, ready for subsequent automotive parts processing or other related work. During operation, the working condition of the fixture should be carefully observed. If loosening or other abnormalities are found, work should be stopped immediately and the fixture readjusted.

[0047] Therefore, although the present invention has been described herein with reference to specific embodiments thereof, freedom of modification, various changes and substitutions are also within the scope of the above disclosure, and it should be understood that in some cases, certain features of the present invention may be adopted without departing from the scope and spirit of the invention and without corresponding use of other features. Thus, many modifications can be made to adapt a particular environment or material to the essential scope and spirit of the present invention. The present invention is not intended to be limited to the specific terms used in the following claims and / or the specific embodiments disclosed as the best mode of carrying out the present invention, but the present invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Therefore, the scope of the present invention will be determined only by the appended claims.

Claims

1. A modular fixture structure for machining automotive parts, characterized in that, include: Rotary threaded rod 1 (4) is rotatably mounted on base (1); A threaded sleeve (3) is threaded onto the rotating threaded rod (4), and the threaded sleeve (3) moves under the drive of the rotating threaded rod (4). Multiple sets of connecting brackets (8) are rotatably installed on the outer ring of the threaded sleeve (3); Multiple arc-shaped inner supports (7) are rotatably connected to the connecting bracket (8), and the arc-shaped inner supports (7) are in sliding contact with the base (1); The main body of the tube sleeve (2) is fitted on the outer ring of the arc-shaped inner support (7).

2. The combined fixture structure for machining automotive parts according to claim 1, characterized in that, Also includes: A support frame (9) is installed on the base (1). The base (1) has a placement groove for use with the support frame (9). The support frame (9) is cross-shaped and has a sliding groove. The arc-shaped inner support (7) is slidably installed on the support frame (9) by a slider.

3. The combined fixture structure for machining automotive parts according to claim 2, characterized in that, Also includes: Mounting bracket (5) is mounted on the base (1); Rotary threaded rod two (6) is rotatably mounted on the base (1); The sliding member (10) is threadedly sleeved on the rotating threaded rod (6), and the sliding member (10) moves under the drive of the rotating threaded rod (6).

4. The combined fixture structure for machining automotive parts according to claim 3, characterized in that, Also includes: Telescopic component (11) is installed on the sliding component (10); Two arc-shaped limiting plates (13), one of which is installed on the telescopic member (11), and the arc-shaped limiting plate (13) moves under the drive of the telescopic member (11).

5. The combined fixture structure for machining automotive parts according to claim 4, characterized in that, Also includes: Two sets of connecting ears (14) are respectively installed on the two arc-shaped limiting plates (13); Two sets of connecting rods (12) are detachably mounted on two sets of connecting ears (14), and the two sets of connecting rods (12) are used to connect the two arc-shaped limiting plates (13) through the two sets of connecting ears (14).

6. The combined fixture structure for machining automotive parts according to claim 3, characterized in that, The first rotating threaded rod (4) is rotatably connected to the support frame (9). A rotating handle is installed below the first rotating threaded rod (4), and a rotating handle is installed on the second rotating threaded rod (6).

7. The combined fixture structure for machining automotive parts according to claim 4, characterized in that, An anti-detachment block is installed above the rotating threaded rod (4), the arc-shaped limiting plate (13) is located on the outer ring of the sleeve body (2), and flexible gaskets are installed on the inner ring of the arc-shaped limiting plate (13) and the outer ring of the arc-shaped inner support (7).

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