Guide clamping mechanism for press fitting of bushing

Abstract

The utility model discloses a guide clamping mechanism for press fitting of a bushing, which belongs to the technical field of press fitting of the bushing of an auxiliary frame assembly of an automobile chassis, and comprises a guide plate and an arc-shaped tool, a symmetrical plate is fixedly mounted on the guide plate, cylinders are symmetrically arranged on the symmetrical plate, and a bushing piece is arranged in the middle of the guide plate; the arc-shaped tools are fixedly arranged on output shafts of the air cylinders, and abutting blocks are symmetrically arranged at the bottoms of the arc-shaped tools. The abutting blocks are extruded to the turned-over edge of the lining part to fix the four corners of the lining part, the outer surface of the lining part is limited in cooperation with the arc-shaped tool, it can be ensured that the lining part does not displace or rotate in the press-fitting process through the four-corner fixing and the abutting blocks, and therefore the press-fitting accuracy is improved. The limiting effect of the arc-shaped tool on the outer surface of the bushing piece further enhances the stability, so that the bushing piece can be accurately positioned at a preset position.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile chassis auxiliary frame assembly bushing press -fitting, especially to a bushing press -fitting guide clamping mechanism. BACKGROUND

[0002] Automobile chassis auxiliary frame assembly bushing press -fitting is an important link in the automobile manufacturing process, and it is directly related to the driving stability and ride comfort of the vehicle. The auxiliary frame bushing is an important part connecting the auxiliary frame and the vehicle body. It not only bears the function of absorbing vibration and reducing noise, but also directly affects the stability of the vehicle driving and the comfort of the ride. Therefore, the installation of the bushing must ensure high precision and reliability to ensure that the performance of the whole vehicle is fully played.

[0003] More and more bushings are designed with metal covers. In order to solve the problem of bushing stiffness, the relative displacement between the inner core and the flange of the bushing is getting larger and larger. The outer shell of the bushing and the inner core are partially filled with rubber and partially hollow. When the bushing contacts the press -fitting sleeve, the stress is not completely uniform, causing the bushing core to tilt and the press -fitting edge to be cut. In addition, the size of the sleeve of the welded part is out of tolerance, which causes the bushing and the sleeve to be out of axis during automatic press -fitting, resulting in the whole bushing tilting. SUMMARY

[0004] The utility model aims at providing a bushing press -fitting guide clamping mechanism to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A bushing press -fitting guide clamping mechanism, comprising:

[0007] A guide plate is fixedly installed with symmetrical plates, the symmetrical plates are symmetrically provided with air cylinders, and the guide plate is provided with a bushing assembly in the middle;

[0008] Arc-shaped tooling is fixedly arranged on the output shaft of the air cylinder, and the arc-shaped tooling is symmetrically provided with a stop block at the bottom.

[0009] Preferably, the air cylinder is inclined, and the arc-shaped tooling is arranged in a detachable fixed structure.

[0010] Preferably, the arc-shaped tooling is symmetrically provided with a fixed block on both sides, the fixed block is provided with a sliding groove one, the sliding groove one is communicated with a sliding groove two, the diameter of the sliding groove two is greater than that of the sliding groove one, the sliding groove two is communicated with a sliding groove three, and the diameter of the sliding groove three is equal to that of the inner wall of the sliding groove one.

[0011] Preferably, the inner wall of the chute one, the chute two and the chute three is provided with a sliding rod penetratingly, a groove is formed in the sliding rod, and the groove is an inclined surface away from the chute three.

[0012] Preferably, the outer surface of the sliding rod is fixedly provided with a fixing ring, the outer surface of the sliding rod is sleeved with an elastic member one, the elastic member one is located at the side of the fixing ring close to the chute three, and the diameter of the elastic member one is matched with the diameter of the inner wall of the chute two.

[0013] Preferably, the fixing block is further provided with a penetrating groove, and the penetrating groove is perpendicular to and communicated with the chute one, the chute two and the chute three.

[0014] Preferably, the inner wall of the penetrating groove is penetratingly provided with a vertical rod, and the outer surface of the vertical rod is fixedly provided with a limiting block one.

[0015] Preferably, the inner wall of the side of the penetrating groove away from the chute one is fixedly provided with a limiting block two, and the inner wall of the limiting block two is slidably connected with the vertical rod.

[0016] Preferably, an elastic member two is arranged between the limiting block two and the limiting block one, and the elastic member two is sleeved on the outer surface of the vertical rod.

[0017] Preferably, the bottom of the vertical rod is fixedly connected with the abutting block, and the end of the vertical rod extending into the chute one is provided as an inclined surface.

[0018] Compared with the prior art, the utility model has the advantages of the following:

[0019] The arc-shaped tool is detachably fixed. The abutting block provides additional support or positioning function in the pressing process.

[0020] When the sliding rod moves to the side of the chute three, the inclined surface of the groove on the sliding rod gradually approaches the vertical rod, and when the inclined surfaces of the sliding rod and the vertical rod are pressed against each other, the vertical rod slides to the side of the limiting block two. The elastic member two is pressed and shrunk under the limitation of the limiting block one. The abutting block is pressed onto the flange of the bushing assembly to fix the bushing assembly at four corners. The arc-shaped tool limits the outer surface of the bushing assembly. Through the four-corner fixation, the abutting block can ensure that the bushing assembly does not displace or rotate in the pressing process, thereby improving the accuracy of pressing. The limiting effect of the arc-shaped tool on the outer surface of the bushing assembly further enhances the stability, so that the bushing assembly can be accurately positioned at the predetermined position. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1The whole structure schematic view of the utility model is shown in the figure.

[0022] Figure 2 The whole structure schematic view of the utility model is shown in the figure.

[0023] Figure 3 The utility model discloses Figure 2 The enlarged structure schematic view of A in the middle is shown in the figure.

[0024] Figure 4 The fixed block section structure schematic view of the utility model is shown in the figure.

[0025] Figure number explanation: 1, guide plate;2, symmetry board;3, air cylinder;4, arc tooling;5, bushing spare;6, fixed block;7, sliding groove one;8, sliding groove two;9, sliding groove three;10, sliding rod;11, recess;12, fixed ring;13, elastic piece one;14, through groove;15, vertical rod;16, limit block one;17, limit block two;18, elastic piece two;19, block. Specific implementation

[0026] The utility model will be further described in detail below in combination with the drawings.

[0027] The following description is used to disclose the utility model so that the person skilled in the art can realize the utility model. The preferred embodiments in the following description are only as examples, and other obvious modifications can be thought of by the person skilled in the art. The basic principles of the utility model defined in the following description can be used in other implementation, modification, improvement, equivalent and other technical solutions without departing from the spirit and scope of the utility model.

[0028] The person skilled in the art should understand that in the disclosure of the utility model, the orientation or position indicated by the terms "longitudinal", "transverse", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientation or position relationship shown in the drawings, which is only for the simplified description of the utility model for the convenience of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore the above-mentioned terms cannot be understood as a limitation of the utility model.

[0029] It can be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number. Embodiment

[0030] Please refer to Figures 1-4The bushing press-fitting guide clamping mechanism comprises a guide plate 1, which is an L-shaped guide fixed plate connected with the support of a press machine to fix the whole mechanism on the press machine equipment. The guide plate 1 is fixedly provided with symmetrical plates 2, the symmetrical plates 2 are symmetrically provided with air cylinders 3, and the middle part of the guide plate 1 is provided with a bushing assembly 5. The arc-shaped toolings 4 are fixedly arranged on the output shafts of the air cylinders 3, and the bottom parts of the arc-shaped toolings 4 are symmetrically provided with abutting blocks 19. The arc-shaped toolings 4 are two toolings with semicircular contact surfaces, the semicircular size is matched with the size of the bushing, and the arc-shaped toolings 4 are connected with the air cylinder 3 assembly through bolts. The bushing clamping part can be replaced with different sizes to meet the press-fitting of bushing assemblies 5 with different diameters. The air cylinder 3 is placed obliquely, and the arc-shaped tooling 4 is arranged in a detachable fixed structure. The abutting blocks 19 provide additional support or positioning function in the press-fitting process.

[0031] Further, the arc-shaped toolings 4 are symmetrically provided with fixed blocks 6 on both sides, the fixed blocks 6 are provided with sliding grooves 7, the sliding grooves 7 are communicated with sliding grooves 8, the diameter of the sliding grooves 8 is greater than that of the sliding grooves 7, the sliding grooves 8 are communicated with sliding grooves 9, and the diameter of the sliding grooves 9 is equal to that of the inner wall of the sliding grooves 7. The inner walls of the sliding grooves 7, the sliding grooves 8 and the sliding grooves 9 are slidably provided with sliding rods 10, the sliding rods 10 are provided with grooves 11, and the side, away from the sliding grooves 9, of the grooves 11 is an inclined surface. The outer surface of the sliding rods 10 is fixedly provided with fixed rings 12, the outer surface of the fixed rings 12 slides on the inner wall of the sliding grooves 8, the outer surface of the sliding rods 10 is sleeved with elastic members 13, the elastic members 13 are located on the side, close to the sliding grooves 9, of the fixed rings 12, and the diameter of the elastic members is matched with that of the inner wall of the sliding grooves 8. The sliding grooves 9 are extension grooves, which provide sliding space for the movement of the sliding rods 10.

[0032] Specifically, when the arc-shaped toolings 4 gradually approach the bushing assembly 5 under the action of the output shafts of the air cylinders 3, the distance between the sliding rods 10 also gradually approaches and fits, at this time, the air cylinders 3 continuously push the arc-shaped toolings 4 to make the sliding rods 10 extrude each other, so that the sliding rods 10 are extruded into the sliding grooves 7, and the extruded elastic members 13 are deformed under the action of the fixed rings 12.

[0033] Further, the fixed blocks 6 are further provided with through grooves 14, which are perpendicular to and communicated with the sliding grooves 7, the sliding grooves 8 and the sliding grooves 9. The inner wall of the through grooves 14 is penetrated by a vertical rod 15, and the outer surface of the vertical rod 15 is fixedly provided with limit blocks 16. The inner wall of the side, away from the sliding grooves 7, of the through grooves 14 is fixedly provided with limit blocks 17, and the inner wall of the limit blocks 17 is slidably connected with the vertical rod 15. The limit blocks 17 and the limit blocks 16 are provided with elastic members 18, which are sleeved on the outer surface of the vertical rod 15. The diameter of the elastic members 18 is matched with that of the vertical rod 15, so that the elastic members 18 are not deformed when extruded.

[0034] It should be noted that the bottom of the vertical rod 15 is fixedly connected with the abutting block 19, and the end of the vertical rod 15 extending into the sliding groove one 7 is provided as an inclined surface.

[0035] It is worth mentioning that when the sliding rod 10 moves to the side of the sliding groove three 9, the inclined surface of the groove 11 on the sliding rod 10 gradually approaches the vertical rod 15, and when the inclined surfaces of the vertical rod 15 and the sliding rod 10 are extruded, the vertical rod 15 is caused to slide to the side of the limiting block two 17, the elastic member two 18 is extruded to shrink under the limiting action of the limiting block one 16, the abutting block 19 is extruded to the flange of the bushing member 5 to fix the bushing member 5 at four corners, the outer surface of the bushing member 5 is limited by the arc-shaped tool 4, the abutting block 19 can ensure that the bushing member 5 does not displace or rotate in the process of press fitting, thereby improving the accuracy of press fitting. The limiting action of the arc-shaped tool 4 on the outer surface of the bushing member 5 further enhances the stability, so that the bushing member 5 can be accurately positioned at the predetermined position.

[0036] Through the above embodiment, the working principle of the utility model is:

[0037] In use, the guide plate 1 is fixedly installed on the support of the press, the bushing member 5 is placed and positioned, and then the cylinder 3 is started; when the arc-shaped tool 4 gradually approaches the bushing member 5 under the action of the output shaft of the cylinder 3, the distance between the sliding rods 10 also approaches each other and gradually fits, at this time, the cylinder 3 continuously pushes the arc-shaped tool 4 to cause the sliding rods 10 to extrude each other, and then the sliding rods 10 are extruded into the sliding groove one 7, the extruded elastic member one 13 is caused to deform under the action of the fixed ring 12. At this time, the sliding rod 10 moves to the side of the sliding groove three 9, the inclined surface of the groove 11 on the sliding rod 10 gradually approaches the vertical rod 15, and when the inclined surfaces of the vertical rod 15 and the sliding rod 10 are extruded, the vertical rod 15 is caused to slide to the side of the limiting block two 17, the elastic member two 18 is extruded to shrink under the limiting action of the limiting block one 16, the abutting block 19 is extruded to the flange of the bushing member 5 to fix the bushing member 5 at four corners, the outer surface of the bushing member 5 is limited by the arc-shaped tool 4, the abutting block 19 can ensure that the bushing member 5 does not displace or rotate in the process of press fitting, thereby improving the accuracy of press fitting. The limiting action of the arc-shaped tool 4 on the outer surface of the bushing member 5 further enhances the stability, so that the bushing member 5 can be accurately positioned at the predetermined position. When the arc-shaped tool 4 and the abutting block 19 at the bottom thereof are clamped from the circumference and the flange to the bushing member 5, the press runs to about 5mm of the bushing member 5 into the sleeve, the cylinder 3 causes the arc-shaped tool 4 to retreat, the elastic member one 13 and the elastic member two 18 cause the sliding rod 10 and the vertical rod 15 to reset, and the press continues to press fit. In this process, the position of the bushing member 5 is relatively fixed and does not deviate, and this stability is crucial to ensure assembly accuracy and improve product quality. It not only reduces the error and rework rate in the assembly process, but also improves the overall production efficiency.

[0038] It has to be understood that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0039] It will be appreciated by those skilled in the art that the preceding description and drawings are only examples of the present application and that the present application is not limited to the embodiments described and shown. The object of the present application has been fully achieved and effectively. The function and the structural principle of the present application have been shown and explained in the embodiments, and the implementation of the present application can be any variation or modification without departing from the principle.

Claims

1. A bush press-fitting guide clamping mechanism characterized by comprising: Include: The guide plate (1) is fixedly installed with symmetrical plates (2), the symmetrical plates (2) are symmetrically provided with air cylinders (3), and the middle part of the guide plate (1) is provided with a bushing (5); The arc-shaped tooling (4) is fixedly arranged on the output shaft of the air cylinder (3), and the arc-shaped tooling (4) is symmetrically provided with a stop block (19) at the bottom.

2. A bush press alignment clamping mechanism according to claim 1, characterised in that: The air cylinder (3) is inclined, and the arc-shaped tooling (4) is arranged in a detachable fixed structure.

3. A bush press alignment clamping mechanism according to claim 2, characterised in that: The arc-shaped tooling (4) is symmetrically provided with a fixed block (6) on both sides, the fixed block (6) is provided with a sliding groove one (7), the sliding groove one (7) is communicated with a sliding groove two (8), the diameter of the sliding groove two (8) is greater than that of the sliding groove one (7), the sliding groove two (8) is communicated with a sliding groove three (9), and the diameter of the sliding groove three (9) is equal to that of the inner wall of the sliding groove one (7).

4. A bush press alignment clamping mechanism according to claim 3, wherein: The inner walls of the sliding groove one (7), the sliding groove two (8) and the sliding groove three (9) are provided with a sliding rod (10) penetratingly and slidingly, the sliding rod (10) is provided with a groove (11), and the side, away from the sliding groove three (9), of the groove (11) is an inclined surface.

5. A bush press alignment clamping mechanism according to claim 4, wherein: The outer surface of the sliding rod (10) is fixedly provided with a fixed ring (12), the outer surface of the sliding rod (10) is sleeved with an elastic element one (13), the elastic element one (13) is located on the side, close to the sliding groove three (9), of the fixed ring (12), and the diameter of the elastic element is matched with the inner wall diameter of the sliding groove two (8).

6. A bush press alignment clamping mechanism according to claim 5, wherein: The fixed block (6) is further provided with a through groove (14), and the through groove (14) is perpendicular to and communicated with the sliding groove one (7), the sliding groove two (8) and the sliding groove three (9).

7. A bush press alignment clamping mechanism according to claim 6, characterised in that: The inner wall of the through groove (14) is provided with a vertical rod (15) penetratingly, and the outer surface of the vertical rod (15) is fixedly provided with a limiting block one (16).

8. A bush press alignment clamping mechanism according to claim 7, characterised in that: The inner wall of the side, away from the sliding groove one (7), of the through groove (14) is fixedly provided with a limiting block two (17), and the inner wall of the limiting block two (17) is slidingly connected with the vertical rod (15).

9. A bush press alignment clamping mechanism according to claim 8, characterised in that: An elastic element two (18) is arranged between the limiting block two (17) and the limiting block one (16), and the elastic element two (18) is sleeved on the outer surface of the vertical rod (15).

10. A bush press alignment clamping mechanism according to claim 9, wherein: The bottom of the vertical rod (15) is fixedly connected with the stop block (19), and the end, extending into the sliding groove one (7), of the vertical rod (15) is arranged as an inclined surface.

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