Subframe bushing press fitting tool

Abstract

The utility model belongs to the technical field of press -fitting equipment, concretely relates to a kind of vice frame bushing press -fitting tool, comprising: bottom plate;With the fixture sliding platform bottom plate being connected by sliding component to bottom plate;Buffering and limiting component is fixed on bottom plate, for buffering and limiting to fixture sliding platform bottom plate;Fixture support is fixed on fixture sliding platform bottom plate;Coarse positioning component, clamping component and two positioning guide components are fixed on fixture support.The utility model provides a kind of vice frame bushing press -fitting tool, by optimizing structure design, can be placed one bushing on two positioning mandrels respectively, realize the function of two bushings press -fitting in one clamping, improve press -fitting efficiency, improve production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of press-fitting equipment technology, specifically relating to a subframe bushing press-fitting fixture. Background Technology

[0002] The automotive subframe is primarily used to connect the vehicle body and suspension. During subframe assembly, bushings need to be press-fitted to the subframe using an interference fit to meet the bushing pressing force requirements. This interference fit is mainly achieved through the interaction of a pressing machine and pressing fixtures. Existing pressing fixtures, such as the subframe bushing pressing fixture disclosed in Chinese Patent Publication No. CN214923951U, include a protective finial with a first positioning structure on the outer periphery of the finial's top surface. It also includes a pressing head assembly pressed onto the top of the bushing. The pressing head assembly includes a pressing block with a cylindrical pressing head protruding downwards from the center of its bottom surface, abutting against the top of the inner sleeve. A buffer ring is fitted around the outer periphery of the pressing head, abutting against the inner periphery of the protective finial's top surface. A second positioning structure is located on the outer periphery of the pressing block's bottom surface, engaging with the first positioning structure. This pressing fixture can only press one bushing at a time, limiting its pressing efficiency and severely impacting production efficiency, resulting in poor overall practicality. Utility Model Content

[0003] The purpose of this utility model is to provide a subframe bushing pressing tool to solve the technical problems of low pressing efficiency and weak practicality of existing pressing tools.

[0004] The technical solution adopted by this utility model to solve the technical problem is as follows:

[0005] This utility model provides a subframe bushing pressing fixture, which mainly includes:

[0006] Base plate;

[0007] The fixture slide base plate is connected to the base plate via a sliding assembly;

[0008] The buffer and limiting assembly fixed to the base plate is used to buffer and limit the base plate of the fixture slide;

[0009] A fixture support fixed to the base plate of the fixture slide;

[0010] The coarse positioning assembly, clamping assembly, and two positioning guide assemblies are fixed on the fixture support.

[0011] Furthermore, the sliding assembly includes: a cylinder seat fixed to the side of the base plate, a drive cylinder fixed to the cylinder seat, a cylinder push plate fixed to the cylinder push-pull head of the drive cylinder, a slide rail fixed to the upper surface of the base plate, and a slider mounted on the slide rail; the fixture slide base plate is fixed to the slider, and the fixture slide base plate is connected to the cylinder push plate.

[0012] Furthermore, the buffer limiting assembly includes: a limiting plate fixed to the base plate, a limiting pin installed on the limiting plate, and a buffer.

[0013] Furthermore, the coarse positioning assembly includes: an upper limit post fixed to the front surface of the fixture support, a first coarse positioning plate fixed to the left and right sides of the fixture support, a coarse positioning block fixed to the first coarse positioning plate, and a second coarse positioning plate fixed to the upper side of the fixture support.

[0014] Furthermore, the clamping assembly includes: a clamping cylinder fixed to the top of the upper end of the clamp support, a cylinder pressure plate connected to the telescopic end of the clamping cylinder, and a pressure block fixed to the cylinder pressure plate.

[0015] Furthermore, the clamping assembly also includes two positioning sleeves fixed to the top of the upper end of the clamp support.

[0016] Furthermore, each positioning guide assembly includes: a second positioning mandrel fixed on the fixture support, a first positioning mandrel connected to the second positioning mandrel via a mandrel guide key, a guide rod extending from top to bottom into the first positioning mandrel and the second positioning mandrel, an oil-free bushing fitted on the lower end of the guide rod, and a spring fitted on the guide rod. The lower end of the guide rod is fixed to the second positioning mandrel via a bushing baffle and a shaft end retaining ring.

[0017] Furthermore, the subframe bushing pressing tool provided by this utility model also includes a lifting ring mounted on the base plate.

[0018] Furthermore, the subframe bushing pressing tool provided by this utility model also includes a positioning pin installed on the base plate.

[0019] Furthermore, the subframe bushing press-fitting fixture provided by this utility model also includes an elastic plunger mounted on a clamp support.

[0020] The beneficial effects of this utility model are:

[0021] This utility model provides a subframe bushing pressing fixture. Through optimized structural design, it can simultaneously place one bushing on each of the two positioning mandrels, realizing the function of pressing two bushings in one clamping, thereby improving pressing efficiency and production efficiency. Attached Figure Description

[0022] Figure 1 A perspective view of a subframe bushing press-fitting fixture provided by this utility model.

[0023] Figure 2 The front view of a subframe bushing press-fitting fixture provided by this utility model.

[0024] Figure 3A cross-sectional view of a subframe bushing press-fitting fixture provided by this utility model.

[0025] Figure 4 A side view of a subframe bushing press-fitting fixture provided by this utility model.

[0026] Figure 5 A top view of a subframe bushing press-fitting fixture provided by this utility model.

[0027] Figure 6 This is a schematic diagram of the fixture support structure.

[0028] Figure 7 This is a schematic diagram of the cylinder pressure plate.

[0029] Figure 8 This is a schematic diagram of the positioning mandrel.

[0030] Figure 9 This is a schematic diagram of the positioning mandrel two.

[0031] Figure 10 This utility model provides a schematic diagram of a subframe bushing press-fitting fixture and a subframe assembly.

[0032] In the diagram, the components are: base plate 1, limit plate 2, limit pin 3, cylinder seat 4, cylinder push plate 5, cylinder push-pull head 6, fixture slide base plate 7, slider 8, fixture support 9, upper limit post 10, coarse positioning block 11, first coarse positioning plate 12, second coarse positioning plate 13, bushing baffle 14, cylinder pressure plate 15, pressure block 16, guide rod 17, positioning sleeve 18, positioning mandrel one 19, spring 20, positioning mandrel two 21, mandrel guide key 22, shaft end retaining ring 23, pressure head 24, bushing 25, oil-free bushing 26, slide rail 27, buffer 28, drive cylinder 29, clamping cylinder 30, elastic plunger 31, lifting ring 32, positioning pin 33, and subframe 34. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings.

[0034] See Figures 1 to 10 As described above, the subframe bushing pressing fixture provided by this utility model mainly consists of the following components:

[0035] 1. Base plate; 2. Limiting plate; 3. Limiting pin; 4. Cylinder seat; 5. Cylinder push plate; 6. Cylinder push-pull head; 7. Fixture slide base plate; 8. Slider; 9. Fixture support; 10. Upper limit post; 11. Coarse positioning block; 12. First coarse positioning plate; 13. Second coarse positioning plate; 14. Bushing baffle; 15. Cylinder pressure plate; 16. Pressure block; 17. Guide rod; 18. Positioning sleeve; 19. Positioning mandrel one; 20. Spring; 21. Positioning mandrel two; 22. Mandrel guide key; 23. Shaft end retaining ring; 24. Pressure head; 25. Bushing; 26. Oil-free bushing; 27. Slide rail; 28. Buffer; 29. ​​Drive cylinder; 30. Clamping cylinder; 31. Elastic plunger; 32. Lifting ring; and 33. Positioning pin.

[0036] In this utility model, a buffer limiting assembly is composed of two limiting plates 2, two limiting pins 3 and two buffers 28.

[0037] Specifically, a limiting plate 2 is provided at each of the left and right ends of the base plate 1, and a limiting pin 3 and a buffer 28 are installed on each limiting plate 2.

[0038] Specifically, lifting rings 32 are fixed at both ends of the base plate 1, that is, one lifting ring 32 is installed at the left end of the base plate 1 and another lifting ring 32 is installed at the right end of the base plate 1. The function of the lifting rings 32 is to connect to the hoisting machine when it is necessary to hoist the tooling.

[0039] Specifically, positioning pins 33 are respectively installed at the left and right ends of the base plate 1, that is, one positioning pin 33 is installed at the left end of the base plate 1 and one positioning pin 33 is installed at the right end of the base plate 1. The function of the positioning pins 33 is to connect the base plate 1 to the external mounting platform when it is necessary to connect with the external mounting platform.

[0040] In this utility model, a sliding assembly is composed of a cylinder seat 4, a cylinder push plate 5, a cylinder push-pull head 6, a slider 8, a slide rail 27, and a drive cylinder 29.

[0041] Specifically, two slide rails 27 are fixed on the base plate 1; each slide rail 27 is equipped with a slider 8.

[0042] Specifically, a cylinder seat 4 is fixed at the right end of the base plate 1, and a drive cylinder 29 is fixed on the cylinder seat 4; a cylinder push plate 5 is fixed on the cylinder push-pull head 6 at the front end of the drive cylinder 29.

[0043] Specifically, the fixture slide base plate 7 is fixed on the slider 8, and the left side of the fixture slide base plate 7 is fixedly connected to the cylinder push plate 5.

[0044] Start the drive cylinder 29, and drive the cylinder pusher head 6 to drive the cylinder push plate 5 and the fixture slide base plate 7 to slide left and right along the two slide rails 27 under the action of the slider 8. During the sliding process, the two ends of the fixture slide base plate 7 are buffered by the buffer 28 and limited by the limit pin 3.

[0045] In this utility model, a coarse positioning assembly is composed of an upper limit post 10, a coarse positioning block 11, a first coarse positioning plate 12, a second coarse positioning plate 13, and an elastic plunger 31.

[0046] Specifically, the clamp support 9 is fixed on the clamp slide base plate 7; two symmetrical elastic plungers 31 are provided on the front surface of the clamp support 9; two symmetrical upper limit posts 10 are also provided on the front surface of the clamp support 9; two first coarse positioning plates 12 are respectively provided on the left and right sides of the clamp support 9, and a coarse positioning block 11 is fixed on each first coarse positioning plate 12. For example, two first coarse positioning plates 12 are fixed on the left side of the clamp support 9, and these two first coarse positioning plates 12 are arranged vertically; two first coarse positioning plates 12 are fixed on the right side of the clamp support 9, and these two first coarse positioning plates 12 are arranged vertically. The coarse positioning block 11 and the first coarse positioning plate 12 are both used for coarse positioning of the subframe 34.

[0047] Specifically, a second coarse positioning plate 13 is provided on each of the two sides of the upper end of the clamp support 9. The second coarse positioning plate 13 is used to coarsely position the subframe 34.

[0048] In this utility model, the clamping assembly consists of a cylinder pressure plate 15, a pressure block 16, a positioning sleeve 18, and a clamping cylinder 30.

[0049] Specifically, a clamping cylinder 30 is installed at the top of the upper end of the clamping support 9, a cylinder pressure plate 15 is installed at the telescopic end of the clamping cylinder 30, and a pressure block 16 is installed at the end of the cylinder pressure plate 15.

[0050] Specifically, two positioning sleeves 18 are installed on the top of the upper end of the clamp support 9, that is, a positioning sleeve 18 is provided on each side of the clamping cylinder 30.

[0051] In this invention, two symmetrical positioning guide components are installed on the top of the upper end of the clamp support 9. Each positioning guide component includes: a bushing baffle 14, a guide rod 17, a positioning mandrel 19, a spring 20, a positioning mandrel 21, a mandrel guide key 22, a shaft end retaining ring 23, and an oil-free bushing 26. The lower end of the positioning mandrel 21 extends into the clamp support 9 and is fixedly connected to the clamp support 9. The lower end of the positioning mandrel 19 extends into the positioning mandrel 21 and passes through the mandrel guide key 22. 2. Connected; the guide rod 17 extends from top to bottom into the positioning mandrel 19 and the positioning mandrel 21. The upper end of the guide rod 17 can extend out of the positioning mandrel 19. The lower end of the guide rod 17 is fitted with an oil-free bushing 26. The lower end of the guide rod 17 is fixed to the positioning mandrel 21 through the bushing baffle 14 and the shaft end retaining ring 23. The spring 20 is fitted on the guide rod 17, and the upper end of the spring 20 is fixed to the inner wall of the positioning mandrel 19, and the lower end of the spring 20 is fixed to the inner wall of the positioning mandrel 21.

[0052] The positioning mandrel 19 and the bushing 25 have the same outer diameter. When the press head 24 of the press machine presses the bushing 25 from top to bottom, the bushing 25 can press the positioning mandrel 19 downward, and the positioning mandrel 19 compresses the spring 20 at the same time.

[0053] See Figure 10 As shown, the subframe bushing pressing fixture provided by this utility model, in use, first starts the drive cylinder 29, which drives the cylinder push plate 5 and the fixture slide base plate 7 to slide along the two slide rails 27 to the first pressing position through the cylinder push-pull head 6. Then, the subframe 34 is installed as a whole on the two positioning guide components, that is, the two bushing mounting holes at the upper end of the subframe 34 are respectively fitted onto the positioning mandrels 19 in the two positioning guide components. At the same time, the two positioning holes in the middle of the subframe 34 are respectively fitted onto the two upper limit posts 10, and the two positioning holes on both sides of the upper end of the subframe 34 are respectively fitted onto the two positioning sleeves 18. Then the subframe 34 is installed as a whole. The frame 34 is coarsely positioned on both sides by coarse positioning blocks 11, first coarse positioning plate 12, and second coarse positioning plate 13, respectively. The clamping cylinder 30 is activated, driving the cylinder pressure plate 15 and pressure block 16 downwards, using the pressure block 16 to press the upper edge of the subframe 34. The press-fitting machine is activated, its pressure head 24 applying downward force to the bushing 25, thus pushing the bushing 25 downwards onto the positioning mandrel 19 until the bushing 25 is pressed into the bushing mounting hole of the subframe 34. During the pressing process, the positioning mandrel 19 compresses the spring 20 downwards, and the guide rod 17 inserts into the center hole of the bushing 25. After pressing one bushing 25 is completed, the pressing of the second bushing 25 continues. Following the above operation procedure, the drive cylinder 29 is activated to slide the fixture slide base plate 7 to the second pressing position to perform the pressing operation of two bushings 25.

[0054] The present invention provides a subframe bushing pressing fixture. Through optimized structural design, a bushing 25 can be placed on two positioning mandrels 19 at the same time, realizing the function of pressing two bushings 25 in one clamping, thereby improving pressing efficiency and production efficiency.

[0055] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features. However, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A subframe bushing pressing tool, characterized in that, include: Base plate; The fixture slide base plate is connected to the base plate via a sliding assembly; The buffer and limiting assembly fixed to the base plate is used to buffer and limit the base plate of the fixture slide; A clamp support fixed to the base plate of the clamp slide; The coarse positioning assembly, clamping assembly, and two positioning guide assemblies are fixed on the fixture support.

2. The subframe bushing press-fitting fixture according to claim 1, characterized in that, The sliding assembly includes: a cylinder seat fixed to the side of the base plate, a drive cylinder fixed to the cylinder seat, a cylinder push plate fixed to the cylinder push-pull head of the drive cylinder, a slide rail fixed to the upper surface of the base plate, and a slider mounted on the slide rail; the fixture slide base plate is fixed to the slider, and the fixture slide base plate is connected to the cylinder push plate.

3. The subframe bushing press-fitting fixture according to claim 1, characterized in that, The buffer limiting assembly includes: a limiting plate fixed to the base plate, a limiting pin installed on the limiting plate, and a buffer.

4. The subframe bushing press-fitting fixture according to claim 1, characterized in that, The coarse positioning assembly includes: an upper limit post fixed to the front surface of the fixture support, a first coarse positioning plate fixed to the left and right sides of the fixture support, a coarse positioning block fixed to the first coarse positioning plate, and a second coarse positioning plate fixed to the upper side of the fixture support.

5. The subframe bushing press-fitting fixture according to claim 1, characterized in that, The clamping assembly includes: a clamping cylinder fixed to the top of the upper end of the clamp support, a cylinder pressure plate connected to the telescopic end of the clamping cylinder, and a pressure block fixed to the cylinder pressure plate.

6. The subframe bushing press-fitting fixture according to claim 1, characterized in that, The clamping assembly also includes two positioning sleeves fixed to the top of the upper end of the clamp support.

7. The subframe bushing press-fitting fixture according to claim 1, characterized in that, Each positioning guide assembly includes: a second positioning mandrel fixed on the fixture support, a first positioning mandrel connected to the second positioning mandrel via a mandrel guide key, a guide rod extending from top to bottom into the first positioning mandrel and the second positioning mandrel, an oil-free bushing fitted on the lower end of the guide rod, and a spring fitted on the guide rod. The lower end of the guide rod is fixed to the second positioning mandrel via a bushing baffle and a shaft end retaining ring.

8. The subframe bushing press-fitting fixture according to claim 1, characterized in that, It also includes the lifting rings mounted on the base plate.

9. The subframe bushing press-fitting fixture according to claim 1, characterized in that, It also includes positioning pins mounted on the base plate.

10. The subframe bushing pressing fixture according to claim 1, characterized in that, It also includes a resilient plunger mounted on a clamp support.

Images