Bushing press fitting tool

Abstract

The utility model discloses a bushing pressing tool, which is used in conjunction with a suspension assembly, and includes: a lower mold assembly, which includes a floating plate, a bottom plate, a bracket positioning column, a skirt compression block, an inner core positioning column and a limit block, wherein the floating plate is floatingly mounted on the upper part of the bottom plate, the bracket positioning column and the limit block are fixedly mounted on the floating plate, the skirt compression block is fixedly mounted on the bottom plate, and the upper part of the skirt compression block is penetrated by the floating plate; an upper mold assembly; wherein the bracket positioning column and the limit block are used to support the bracket in the suspension assembly, and the skirt compression block is used to support the bushing in the suspension assembly. The utility model provides a bushing pressing tool, in the process of pressing the bushing into the bracket of the suspension assembly from bottom to top, the floating plate provides necessary buffer support, effectively preventing scratches and damages on the bushing surface, thereby ensuring the assembly quality and final performance of the suspension assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of bushing press-fitting, and more specifically to a bushing press-fitting tool. Background Art

[0002] like Figure 1-2 As shown in the figure, the rear power left rear suspension assembly includes a bracket and a bushing installed in the matching hole of the bracket. Compared with the traditional structure with a straight edge of the bushing outer shell, the new structure adopts a full circle of high skirts in the design of the Y-shaped bracket. In this design, the highest dimension reaches 10mm, which can be evenly transmitted to the entire suspension part when the vehicle is subjected to Y-direction force. This design not only achieves better NVH performance, but also prevents the durability of the parts from being affected by local stress concentration.

[0003] CN102139289A discloses a method for reducing the diameter of a leaf spring bushing for an automobile. If the suspension assembly adopts the above patented technical solution, since there is no buffering effect between the bushing and the bracket, the outer sleeve on the bushing is prone to scratches, skewness, edge pulling and damage to the bushing, which may affect its assembly quality and final performance. Summary of the invention

[0004] The utility model aims to solve one of the technical problems in the related art to a certain extent. To this end, the utility model proposes a bushing press-fitting tool. In the process of pressing the bushing into the suspension assembly bracket from bottom to top, the floating plate provides necessary buffer support, effectively preventing the bushing surface from being scratched and damaged, thereby ensuring the assembly quality and final performance of the suspension assembly.

[0005] The technical solution adopted by the utility model is to provide a bushing press-fitting tool, which is used in conjunction with a suspension assembly, including:

[0006] The lower mold assembly includes a floating plate, a bottom plate, a bracket positioning column, a skirt compression block, an inner core positioning column and a limit block, wherein the floating plate is floatingly mounted on the upper part of the bottom plate, the bracket positioning column and the limit block are fixedly mounted on the floating plate, the skirt compression block is fixedly mounted on the bottom plate, and the floating plate is passed through the upper part of the skirt compression block;

[0007] Upper mold assembly;

[0008] Wherein, the bracket positioning column and the limiting block are used to support the bracket in the suspension assembly, and the skirt compression block is used to support the bushing in the suspension assembly.

[0009] With the above structure, the bushing press-fitting process has been significantly improved. Specifically, the design of the floating plate enables the bracket positioning column and the limit block on the bottom plate to be accurately fixed in the appropriate position, and the skirt compression block ensures that the bushing remains stable during the press-fitting process. When the bushing is pressed into the suspension assembly bracket from bottom to top, the floating plate plays a certain buffering role, effectively preventing scratches and damage on the bushing surface, thereby ensuring the assembly quality and final performance of the suspension assembly.

[0010] According to an embodiment of the utility model, a floating spring is provided between the floating plate and the bottom plate; the floating spring has an elastic tendency to keep the floating plate in a floating state.

[0011] According to an embodiment of the utility model, the bottom plate is provided with a lower die guide column penetrating the floating plate; the lower die guide column is used to guide the floating plate to move up and down relative to the bottom plate.

[0012] According to one embodiment of the utility model, the upper end of the skirt compression block is provided with a contoured portion adapted to the end of the bushing; the end of the bushing is embedded in the contoured portion, that is, the end of the natural rubber in the bushing is embedded in the contoured portion, and the outer skirt and the skirt compression block are separated by part of the natural rubber. Because rubber is incompressible, the incompressibility of the natural rubber provides uniform support for the outer skirt during the press-fitting process, avoiding the fracturing of the plastic outer jacket and local failure to press-fit, thereby ensuring the coaxiality of the press-fitting.

[0013] According to an embodiment of the utility model, the inner core positioning column includes a central positioning column and an anti-error positioning column, and the inner core of the bushing has a through hole that penetrates the central positioning column and the anti-error positioning column.

[0014] According to an embodiment of the utility model, a lower mold limiting column is fixedly installed on the bottom plate.

[0015] According to one embodiment of the utility model, the upper mold assembly includes a top plate and a pressing block installed on the top plate.

[0016] According to an embodiment of the utility model, the top plate is fixedly mounted with an upper die guide post, and the floating plate has a guide hole that is slidably matched with the upper die guide post.

[0017] According to an embodiment of the utility model, an upper mold limit block is fixedly installed on the top plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A three-dimensional diagram of a bushing in an embodiment of the utility model;

[0020] Figure 2 An exploded view of a bushing in an embodiment of the utility model;

[0021] Figure 3 A three-dimensional diagram of a tool in an embodiment of the utility model;

[0022] Figure 4 An exploded view of a tooling in an embodiment of the utility model;

[0023] Figure 5 A cross-sectional view of a tool in an embodiment of the utility model;

[0024] Figure 6 It is a cross-sectional view of the tooling exploded in the embodiment of the utility model;

[0025] Figure 7 A three-dimensional diagram of the lower mold assembly in the embodiment of the utility model;

[0026] Figure 8 This is a structural schematic diagram of the lower mold assembly in the embodiment of the utility model;

[0027] Fig. 9 A half-section stereoscopic view of the lower mold assembly in the embodiment of the utility model;

[0028] Fig.10 An exploded perspective view of a bushing in an embodiment of the utility model;

[0029] Fig.11 It is a three-dimensional diagram of the press-fitting front lower mold component and the suspension assembly in the embodiment of the utility model.

[0030] Description of the numbers in the figure:

[0031] 10. Suspension assembly; 20. Lower mold assembly; 30. Upper mold assembly;

[0032] 11. Bracket; 12. Bushing;

[0033] 111, connecting hole; 112, matching hole;

[0034] 121, outer cover; 122, natural rubber; 123, inner core;

[0035] 21. Floating plate; 22. Bottom plate; 23. Lower die guide column; 24. Floating spring; 25. Lower die limit column; 26. Bracket positioning column; 27. Skirt compression block; 28. Inner core positioning column; 29. ​​Limit block;

[0036] 211, guide hole;

[0037] 271. Copying Department;

[0038] 281. Center positioning column; 282. Anti-mistake positioning column;

[0039] 31. Top plate; 32. Upper die guide pin; 33. Upper die limit block; 34. Press block. DETAILED DESCRIPTION

[0040] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention. Embodiment 1

[0041] Combination Figure 1-2 as well as Fig.10 As shown, in this embodiment, the suspension assembly 10 includes a bracket 11 and a bushing 12. The bracket 11 is provided with two connecting holes 111 and a matching hole 112. The connecting holes 111 and the matching holes 112 are distributed in a triangular shape. The connecting hole 111 is used to install the bracket 11 on the vehicle body, and the matching hole 112 is adapted to the bushing 12. The bushing 12 press-fitting tool is used to press the bushing 12 into the matching hole 112. The bushing 12 includes a plastic outer jacket 121, natural rubber 122 and an inner core 123. The inner core 123 has an axially penetrating central through hole and anti-mistake through holes arranged around the central through hole. The outer jacket 121 has a full circle of high skirt, and the highest size reaches 10 mm. The outer diameter of the skirt is larger than the outer diameter of the outer jacket 121.

[0042] like Figure 3-9 as well as Fig.11 As shown, in this embodiment, a bushing 12 press-fitting tool is disclosed, which is used in conjunction with the suspension assembly 10, including:

[0043] The lower mold assembly 20 includes a floating plate 21, a bottom plate 22, a bracket positioning column 26, a skirt compression block 27, an inner core positioning column 28 and a limit block 29. The floating plate 21 is floatingly mounted on the upper part of the bottom plate 22, the bracket positioning column 26 and the limit block 29 are fixedly mounted on the floating plate 21, the skirt compression block 27 is fixedly mounted on the bottom plate 22, and the upper part of the skirt compression block 27 passes through the floating plate 21;

[0044] Upper mold assembly 30;

[0045] The bracket positioning column 26 and the limiting block 29 are used to support the bracket 11 in the suspension assembly 10 , and the skirt compression block 27 is used to support the bushing 12 in the suspension assembly 10 .

[0046] Furthermore, in this embodiment, the floating plate 21 and the bottom plate 22 are arranged in parallel up and down, and four rebound limiting columns are provided on the floating plate 21. The heads of the rebound limiting columns are larger than the through holes on the floating plate 21, and the rods of the rebound limiting columns pass through the through holes and are fixedly connected to the bottom plate 22. The floating spring 24 is sleeved on the rebound limiting columns, and the upper end of the floating spring 24 abuts against the bottom surface of the floating plate 21, and the lower end abuts against the upper surface of the bottom plate 22.

[0047] Furthermore, a bracket positioning column 26 is fixedly mounted on the floating plate 21. The bracket positioning column 26 is a stepped positioning pin, and its upper end is slidably matched with the inner diameter of the connecting hole 111. Before press-fitting, the connecting hole 111 is inserted into the bracket positioning column 26, and the lower end opening of the matching hole 112 on the bracket 11 abuts against the upper end of the limit block 29.

[0048] Furthermore, in this embodiment, the opening of one end with a skirt in the outer sleeve 121 abuts against the upper end of the skirt compression block 27. The skirt compression block 27 is made of rubber material, and its upper end has a circular groove with an inner diameter greater than the outer diameter of the skirt position of the outer sleeve 121. The bottom of the groove is provided with a contoured portion 271 adapted to the end of the bushing 12; the end of the bushing 12 is embedded in the contoured portion 271 to avoid the bushing 12 from being offset during the press-fitting process, thereby ensuring the coaxiality of the press-fitting.

[0049] Furthermore, the bottom plate 22 is provided with a lower die guide column 23 penetrating the floating plate 21; the lower die guide column 23 is used to guide the floating plate 21 to move up and down relative to the bottom plate 22. The inner core positioning column 28 includes a central positioning column 281 and two anti-error positioning columns 282, and the inner core 123 of the bushing 12 has a through hole through which the central positioning column 281 and the anti-error positioning column 282 are inserted. That is, the central positioning column 281 is inserted into the central through hole of the inner core 123, and the two anti-error positioning columns 282 are inserted into the anti-error through hole of the inner core 123. The central positioning column 281 and the two anti-error positioning columns 282 are arranged vertically, which effectively prevents the bushing 12 on the skirt compression block 27 from deflecting. The bottom plate 22 is fixedly installed with a lower die limiting column 25, and when the upper die assembly 30 is pressed downward, the floating plate 21 is driven downward until the bottom plate 22 and the lower die limiting column 25 are against each other.

[0050] Specifically, the upper die assembly 30 includes a top plate 31 and a pressing block 34 mounted on the top plate 31. The top plate 31 is fixedly mounted with an upper die guide post 32, and the floating plate 21 has a guide hole 211 that can slidably cooperate with the upper die guide post 32. The top plate 31 is fixedly mounted with an upper die stop block 33

[0051] Furthermore, in this embodiment, the method of using the bushing 12 press fitting tool is as follows:

[0052] First, the bushing 12 is placed on the skirt compression block 27, and the bracket 11 is placed on the bracket positioning column 26 and the limit block 29. The bracket 11 and the bushing 12 are staggered up and down, wherein the skirt of the outer sleeve 121 is located at the lower opening edge of the outer sleeve 121.

[0053] Afterwards, the upper die assembly 30 moves toward the lower die assembly 20, the upper die guide column 32 slides with the guide hole 211, the pressing block 34 abuts against the upper edge of the matching hole 112 on the bracket 11, the upper die limit block 33 abuts against the upper end of the floating plate 21, and the pressing block 34 drives the bracket 11 to move downward. The bracket 11 drives the floating plate 21 downward through the bracket positioning column 26 and the limit block 29, and the upper die limit block 33 drives the floating plate 21 to move downward, and the floating spring 24 is continuously compressed. The bracket 11 moves downward, causing the bushing 12 to be continuously pressed into the matching hole 112 until the lower end of the floating plate 21 abuts against the lower die limit column 25. At this time, the bushing 12 is completely pressed into the matching hole 112 of the bracket 11.

[0054] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0055] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0057] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A bushing press-fitting tool, which is used in conjunction with a suspension assembly, characterized in that: include: The lower mold assembly includes a floating plate, a bottom plate, a bracket positioning column, a skirt compression block, an inner core positioning column and a limit block, wherein the floating plate is floatingly mounted on the upper part of the bottom plate, the bracket positioning column and the limit block are fixedly mounted on the floating plate, the skirt compression block is fixedly mounted on the bottom plate, and the floating plate is passed through the upper part of the skirt compression block; Upper mold assembly; Wherein, the bracket positioning column and the limiting block are used to support the bracket in the suspension assembly, and the skirt compression block is used to support the bushing in the suspension assembly.

2. The bushing press-fitting tool according to claim 1, characterized in that: A floating spring is arranged between the floating plate and the bottom plate.

3. The bushing press-fitting tool according to claim 1, characterized in that: The bottom plate is provided with a lower die guide column penetrating the floating plate.

4. The bushing press-fitting tool according to claim 1, characterized in that: The upper end of the skirt compression block is provided with a contoured portion adapted to the end of the bushing.

5. The bushing press-fitting tool according to claim 1, characterized in that: The inner core positioning column comprises a central positioning column and an anti-error positioning column, and the inner core of the bushing has a through hole which penetrates the central positioning column and the anti-error positioning column.

6. The bushing press-fitting tool according to claim 1, characterized in that: The bottom plate is fixedly mounted with a lower die limiting column.

7. The bushing press-fitting tool according to claim 1, characterized in that: The upper mold assembly includes a top plate and a pressing block installed on the top plate.

8. The bushing press-fitting tool according to claim 7, characterized in that: The top plate is fixedly mounted with an upper die guide post, and the floating plate has a guide hole that is slidably matched with the upper die guide post.

9. The bushing press-fitting tool according to claim 7, characterized in that: An upper die limiting block is fixedly mounted on the top plate.

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