Automobile frame bushing press-fit assembly

Abstract

The utility model relates to the technical field of automobile frame bushing press equipment, provide a kind of automobile frame bushing press assembly, it can avoid deformation when bushing press packing, and convenient operation, locking reliable, to ensure press packing accuracy further.A kind of automobile frame bushing press packing assembly, characterized by: including a pair of tooling plate, pivot and lock unit;Tooling plate includes embedding portion, pivot joint portion and gripping portion connected in sequence, the inside of embedding portion is formed with C-shaped opening, the C-shaped opening of a pair of tooling plate mutually splices and forms circular opening (to surround the outer periphery of the inner tube of bushing), embedding portion is equipped with press packing flange on back, and the pivot joint portion of a pair of tooling plate is pivotally connected by pivot;Lock unit, for locking a pair of tooling plate to keep circular opening.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive frame bushing press-fitting equipment, specifically to an automotive frame bushing press-fitting assembly. Background Technology

[0002] A bushing P, the structure of which is referenced Figure 2 The inner tube P2 of the bushing P is fitted with a cover plate P1. The outer edge of the cover plate P1 has an upwardly bent flange to form a groove structure. The outer tube P5 of the bushing P is fitted over the inner tube P2. The upper end of the outer tube P5 has a pair of outer flanges P3. A rubber buffer pad P6 is laminated on the outer flanges P3. The rubber buffer pad P6 and the cover plate P1 are spaced apart. A notch P4 is formed between the pair of outer flanges P3. A cavity is formed between the upper part of the outer tube P5 and the inner tube P2. This structure causes the area from the cover plate P1 to the outer flange to be easily deformed when the bushing P is pressed into the frame, which affects the pressing quality and even the service life of the bushing P.

[0003] Therefore, we propose an automotive frame bushing press-fit assembly. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an automotive frame bushing press-fit assembly to solve the aforementioned problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An automotive frame bushing press-fit assembly, characterized in that it includes a pair of tooling plates, a rotating shaft, and a locking unit;

[0007] The tooling plate includes an insert, a pivot, and a gripping part connected in sequence. The insert has a C-shaped opening on its inner side. The C-shaped openings of a pair of tooling plates are joined together to form a circular opening (to surround the outer periphery of the inner tube of the bushing). The back of the insert has a press-fit flange. The pivot of a pair of tooling plates is pivotally connected by a rotating shaft.

[0008] A locking unit is used to lock a pair of tooling plates to maintain a circular opening.

[0009] Furthermore, the locking unit includes a U-shaped connector, a spring, and a limiting nut. The U-shaped connector includes a crossbar, a first upright connected to both ends of the crossbar, and a second upright. A locking hole is provided at the root of the embedded part. The first upright passes through the locking hole of one of the embedded parts, is fitted with a spring, and is threadedly connected to the limiting nut. The two ends of the spring abut against the embedded part and the limiting nut, respectively. The second upright can pass through the locking hole of the other embedded part.

[0010] Furthermore, one of the embedded parts is equipped with a support block on one side of the locking hole, and the upper part of the support block is provided with a groove that cooperates with the crossbar.

[0011] Furthermore, the component also includes a contoured pressure plate whose outer periphery matches the groove contour of the bushing cover plate.

[0012] Furthermore, the thickness of the contoured pressure plate is greater than the groove depth of the bushing cover plate.

[0013] Furthermore, the two ends of the press-fit flange can abut against the outer edge flanges on both sides of the notch of the bushing, and the middle part can abut against the outer tube of the bushing.

[0014] Furthermore, the inner surface contour of the press-fit flange is arc-shaped.

[0015] Furthermore, the pivot joints of a pair of tooling plates are arranged crosswise, and there is a step difference between the pivot joints and the embedded parts, so that after the pivot joints of a pair of tooling plates are pivotally connected, their embedded parts are flush.

[0016] This utility model provides a press-fit assembly for automotive frame bushings, which has the following advantages:

[0017] 1. The inserts of a pair of tooling plates are embedded between the cover plate and the rubber buffer pad of the bushing. The two ends of the pressing flange can abut against the outer flange on both sides of the bushing notch, and the middle part can abut against the outer tube of the bushing. At the same time, the C-shaped openings of the two inserts are joined to form a circular opening, which can accurately surround the outer circumference of the inner tube of the bushing, forming a limit and support for the cover plate and even the inner tube. During the pressing process, it effectively prevents deformation from the area from the cover plate to the outer flange, thereby ensuring the pressing quality and avoiding the impact of deformation on the service life of the bushing.

[0018] 2. A pair of tooling plates are pivotally connected by a pivot shaft, which can be quickly opened and closed, making it easy to insert or remove the bushing from the tooling; the locking unit locks the pair of tooling plates to maintain the circular opening and ensure the reliability of the assembly.

[0019] 3. The contoured pressure plate is embedded in the groove structure of the cover plate to prevent deformation of the cover plate area, and together with the embedded part of a pair of tooling plates, it further ensures the relative position of each component of the bushing. Attached Figure Description

[0020] Figure 1 This is a schematic diagram showing the application of this utility model to the bushing pressing fixture;

[0021] Figure 2 This is a schematic diagram showing the state of the present invention in conjunction with the bushing;

[0022] Figure 3This is a schematic diagram showing the second state of the present invention in conjunction with the bushing;

[0023] Figure 4 This is a first-view structural schematic diagram of the present invention in the locked state;

[0024] Figure 5 This is a structural schematic diagram of the present invention in the locked state from a second perspective;

[0025] Figure 6 This is a schematic diagram of the structure of the present invention in the unlocked state.

[0026] In the picture:

[0027] P, bushing;

[0028] P1, cover plate;

[0029] P2, Inner tube;

[0030] P3, outer flange;

[0031] P4, gap;

[0032] P5, outer tube;

[0033] P6, rubber cushioning pad;

[0034] 1. Support base;

[0035] 2. Contouring pressure plate;

[0036] 3-1, First tooling plate;

[0037] 3-2, Second tooling plate;

[0038] 3a. Embedded part;

[0039] 3b. Pivotal section;

[0040] 3c. Grip section;

[0041] 31. C-shaped opening;

[0042] 32. Press-fit flange;

[0043] 33. Locking hole;

[0044] 4. Shaft;

[0045] 5. U-shaped connector;

[0046] 51. First pole erected;

[0047] 52. Second upright;

[0048] 53. Horizontal bar;

[0049] 6. Support block;

[0050] 7. Limit nut;

[0051] 8. Spring. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0053] See attached document Figure 1-6 An automotive frame bushing press-fit assembly includes a pair of tooling plates, a pivot, and a locking unit;

[0054] A pair of tooling plates, namely a first tooling plate 3-1 and a second tooling plate 3-2, each tooling plate comprising an integrally formed insert portion 3a, a pivot portion 3b, and a gripping portion 3c connected in sequence. The inner side of the insert portion 3a has a C-shaped opening 31. The C-shaped openings 31 of the two tooling plates are joined together to form a circular opening (to surround the outer periphery of the inner tube P2 of the bushing P). The back side of the insert portion 3a (see attached drawing) Figure 5 Specifically, the outer area on the back side is provided with a press-fit flange 32, and a pair of tooling plates pivotally connected by a pivot shaft 4;

[0055] A locking unit is used to lock a pair of tooling plates to maintain a circular opening.

[0056] In this embodiment, the locking unit includes a U-shaped connector 5, a spring 8, and a limiting nut 7. The U-shaped connector 5 includes a crossbar 53, a first upright 51 connected to both ends of the crossbar 53, and a second upright 52. The root of the embedded part 3a is provided with a locking hole 33. The first upright 51 passes through the locking hole 33 of the first tooling plate 3-1 and is sleeved with the spring 8 and threadedly connected to the limiting nut 7. The two ends of the spring 8 abut against the embedded part 3a and the limiting nut 7, respectively. The second upright 52 can pass through the locking hole 33 of the second tooling plate 3-2. The embedded part 3a of the first tooling plate 3-1 is provided with a support block 6 on one side of the locking hole 33. The upper part of the support block 6 is provided with a groove that cooperates with the crossbar 53.

[0057] The U-shaped connector 5, spring 8, and limit nut 7 of the locking unit cooperate to quickly lock a pair of tooling plates to maintain a circular opening. Specifically, the U-shaped connector 5 is rotated until the second upright 52 is aligned with the locking hole 33 of the second tooling plate 3-2. The U-shaped connector is then released or actively pressed down, causing the second upright 52 to insert into the locking hole 33. Figure 4 The state shown; the elasticity of the spring 8 makes the locking tighter and prevents the second upright 52 from coming out of the locking hole 33; the limit nut 7 can adjust the locking force, and the cooperation between the second upright 52 and the groove of the support block 6 realizes the positioning support of the U-shaped connector 5 in the non-locked state. The operation is simple and the locking is reliable, which improves the efficiency of the press-fitting operation.

[0058] In this embodiment, the component further includes a contouring pressure plate 2, the outer periphery of which matches the groove contour of the bushing P cover plate P1, and the thickness of the contouring pressure plate 2 is greater than the groove depth of the cover plate P1. The contouring pressure plate 2 is embedded in the groove structure of the cover plate P1, thus maintaining the shape of the cover plate P1, and, in conjunction with the embedded portions 3a of a pair of tooling plates below the cover plate P1, further ensures the relative positions of the components of the bushing P.

[0059] In this embodiment, the two ends of the press-fit flange 32 can abut against the outer flanges P3 on both sides of the notch P4 of the bushing P, and the middle part can abut against the outer tube P5 of the bushing P. Preferably, the inner surface contour of the press-fit flange 32 is arc-shaped. Specifically, the two ends of the rubber buffer pad P6 of the bushing P, that is, the parts located at the ends of the outer flanges P3, have a thickness much smaller than the thickness of the main body. The ends of the press-fit flange are mainly supported on the ends of the outer flanges P3.

[0060] In this embodiment, the pivot portions 3b of a pair of tooling plates are arranged crosswise, and there is a step difference between the pivot portions 3b and the embedded portions 3a, so that after the pivot portions 3b of a pair of tooling plates are pivotally connected, their embedded portions 3a are flush, ensuring the consistency of the positioning and support of the pair of embedded portions 3a and their pressing flanges 32.

[0061] Reference Figure 1 The base plate of the bushing pressing fixture is equipped with support seats 1 corresponding to the bushing sleeves of each bushing on the chassis (not shown in the figure). The upper part of the main body of the support seat 1 is equipped with a movable shaft that can elastically extend and retract vertically. The top of the movable shaft is equipped with a mandrel that mates with the central through hole of the bushing. The operation before bushing pressing is as follows: move the chassis above the fixture, lower it until the sleeve is fitted onto the movable shaft and supported on the main body of the support seat, and insert the bushing P vertically onto the mandrel, abutting against the upper opening of the sleeve. (Refer to the attached figure.) Figure 2 , 3First, open the U-shaped connector 5 and rotate it to support the support block 6. Open a pair of tooling plates and move them until the height of their embedded part 3a is between the cover plate P1 of the bushing P and the rubber buffer pad P6. Then close the pair of tooling plates so that their embedded part 3a is embedded between the cover plate P1 of the bushing P and the rubber buffer pad P6. The two ends of the pressing flange 32 abut against the ends of the outer flange P3 on both sides of the notch P4, and the middle part abuts against the outer tube P5 of the bushing P. Then rotate the U-shaped connector in the opposite direction and insert its second upright 52 into the locking hole 33 of the second tooling plate to lock the pair of tooling plates. Finally, put the contour pressure plate 2 into the groove structure of the cover plate P1.

[0062] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0063] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended 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 modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such 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 press-fit assembly for automotive frame bushings, characterized in that: Includes a pair of tooling plates, a rotating shaft, and a locking unit; The tooling plate includes an embedding part, a pivoting part, and a gripping part connected in sequence. The inner side of the embedding part has a C-shaped opening. The C-shaped openings of a pair of tooling plates are joined together to form a circular opening. The back of the embedding part is provided with a pressing flange. The pivoting parts of a pair of tooling plates are pivotally connected by a rotating shaft. A locking unit is used to lock a pair of tooling plates to maintain a circular opening.

2. The automotive frame bushing press-fit assembly as described in claim 1, characterized in that: The locking unit includes a U-shaped connector, a spring, and a limiting nut. The U-shaped connector includes a crossbar, a first upright connected to both ends of the crossbar, and a second upright. A locking hole is provided at the root of the embedded part. The first upright passes through the locking hole of one of the embedded parts, is fitted with a spring, and is threadedly connected to the limiting nut. The two ends of the spring abut against the embedded part and the limiting nut, respectively. The second upright can pass through the locking hole of the other embedded part.

3. The automotive frame bushing press-fit assembly as described in claim 2, characterized in that: One of the embedded parts is equipped with a support block on one side of the locking hole, and the upper part of the support block is provided with a groove that cooperates with the crossbar.

4. The automotive frame bushing press-fit assembly as described in claim 1, characterized in that: The component also includes a contoured pressure plate whose outer periphery matches the groove contour of the bushing cover plate.

5. The automotive frame bushing press-fit assembly as described in claim 4, characterized in that: The thickness of the contoured pressure plate is greater than the groove depth of the bushing cover plate.

6. The automotive frame bushing press-fit assembly as described in claim 1, characterized in that: The two ends of the press-fit flange can abut against the outer edge flanges on both sides of the bushing notch, and the middle part can abut against the outer tube of the bushing.

7. The automotive frame bushing press-fit assembly as described in claim 6, characterized in that: The inner surface profile of the press-fit flange is arc-shaped.

8. The automotive frame bushing press-fit assembly as described in claim 1, characterized in that: The pivot joints of a pair of tooling plates are arranged crosswise, and there is a step difference between the pivot joints and the embedded parts, so that after the pivot joints of a pair of tooling plates are pivotally connected, their embedded parts are flush.

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