A tool for replacing rubber sleeve of automobile support arm

Abstract

The utility model discloses a tool for replacing a rubber sleeve of an automobile support arm, comprising a conversion head, wherein the top of the conversion head is connected to a pressure device to control the movement of the conversion head; a press part, wherein the press part is detachably connected to the outer wall of the conversion head and is used to abut against the upper surface of the rubber sleeve; and a guide part, wherein the guide part is connected to the bottom of the conversion head and is used to extend into the center hole of the rubber sleeve to guide the rubber sleeve. The utility model solves the problem of inaccurate positioning and easy damage of the rubber sleeve during replacement in the prior art. By setting the guide part and the press part, the guide part extends into the center hole of the rubber sleeve, and can timely adjust the position of the rubber sleeve during the pressing process. In addition, the coordinated setting of the guide part and the press part, on the one hand, ensures the guiding positioning of the rubber sleeve position, and on the other hand, the press part effectively contacts the rubber sleeve, thereby reducing the risk of damage to the automobile support arm and the support arm rubber sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts replacement, in particular to a tool for replacing a rubber sleeve of an automobile support arm. Background Art

[0002] The automobile support arm rubber sleeve is composed of a center hole, a rubber shock-absorbing ring and the outer wall of the rubber sleeve. As the mileage of the car increases or the age of the car increases, the rubber shock-absorbing ring of the automobile support arm rubber sleeve ages and cracks, causing the car chassis to loosen, the car driving experience to decrease, and the risk of car driving failures to increase. The automobile support arm rubber sleeve is a component of the automobile support arm that is easily damaged and often needs to be replaced after a period of use. Specifically, the damaged support arm rubber sleeve can be replaced by using a press machine with a press head of appropriate size to crimp the outer wall of the support arm rubber sleeve, and the support arm rubber sleeve can be pressed out of the support arm through hydraulic pressure; the same principle can be used in reverse operation to press a new support arm rubber sleeve into the automobile support arm.

[0003] A Chinese patent with application number CN202222926009.8 discloses a device for replacing the bushing of a lower arm of a vehicle, comprising a base, a gantry is fixedly installed in the middle position above the base, a hydraulic cylinder is fixedly installed above the gantry, one end of the hydraulic cylinder is connected to a hydraulic push rod, two threaded holes are threadedly connected with threaded rods, one end of the two threaded rods located in a circular groove are rotatably connected with an arc clamping block, and a bushing replacement component is provided under the disc for replacing the bushing of the lower arm.

[0004] The above scheme disassembles the bushing by placing it on top of the bottom tube and pressing the bushing down with the upper tube. During this process, since the bushing is not connected to the bottom tube, the bushing is easily displaced when the upper tube is pressed down, resulting in the upper tube and the bushing being unable to make effective contact, causing inaccurate pressing position, which is easy to damage the automobile arm and the arm rubber sleeve, and even cause a production accident. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the rubber sleeve is easily damaged when it is replaced due to inaccurate positioning. The purpose is to provide a tool for replacing the rubber sleeve of an automobile support arm, which solves the problem of inaccurate positioning and easy damage of the rubber sleeve when it is replaced in the prior art.

[0006] The utility model is realized by the following technical solutions:

[0007] A tool for replacing a rubber sleeve of an automobile support arm, comprising:

[0008] A conversion head, the top of which is connected to a pressure device to control the movement of the conversion head;

[0009] A pressing part, which is detachably connected to the outer wall of the conversion head and is used to abut against the upper surface of the rubber sleeve;

[0010] A guide piece is connected to the bottom of the conversion head and is used to extend into the center hole of the rubber sleeve to guide the rubber sleeve.

[0011] Further optimized, the conversion head includes a support column, a first connection portion connected to the pressure device is provided at the top of the support column, and a second connection portion connected to the guide member and the pressing member is provided at the bottom of the support column.

[0012] Further optimization, in order to ensure the stable connection between the guide member and the second connecting part, is set as follows: the guide member is threadedly connected to the second connecting part, the second connecting part includes a fixing pin, and a threaded hole is opened at the bottom of the fixing pin.

[0013] Further optimized, the guide member includes a guide column, one end of which is connected to a threaded rod that threadably cooperates with the threaded hole, and the other end of which is connected to a guide pin that is used to extend into the center hole of the rubber sleeve.

[0014] Further optimized, the guide pin is in the shape of a truncated cone.

[0015] Further optimization is performed, and the size of the guide pin is smaller than the size of the center hole of the rubber sleeve.

[0016] Further optimized, the pressing tool comprises a pressing tool head, and a mounting hole for cooperating with a fixing pin is provided in the middle of the pressing tool head.

[0017] Further optimization is provided in that a retaining spring groove is provided on the outer wall of the fixing pin, an elastic retaining spring for engaging with the mounting hole is provided in the retaining spring groove, and one side of the elastic retaining spring is open.

[0018] Further optimization, in order to ensure the connection strength of the press head, is set as follows: the outer diameter of the elastic retaining spring is larger than the inner diameter of the mounting hole.

[0019] In a further optimization, the pressure device comprises a press or a press machine.

[0020] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0021] 1. Through the setting of the guide and the pressing part, the guide extends into the center hole of the rubber sleeve, and the position of the rubber sleeve can be adjusted in time during the pressing process. In addition, the coordinated setting of the guide and the pressing part ensures the guiding positioning of the rubber sleeve on the one hand, and the effective contact between the pressing part and the rubber sleeve on the other hand, and there will be no risk of misalignment, tilting, slipping, etc., thereby reducing the risk of damage to the automobile support arm and the support arm rubber sleeve. Reduce the influence of human factors and uncontrollable factors, and eliminate production accidents caused by errors such as inaccurate naked eye recognition and workpiece displacement.

[0022] 2. By setting a conversion head, the conversion head is stably connected to the pressure device and then connected to the guide part and the pressing part. The conversion head provides working conditions for the movement and downward pressing of the guide part and the pressing part, thereby realizing the disassembly and installation of the rubber sleeve.

[0023] 3. Simple operation and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model. In the drawings:

[0025] Figure 1 It is a structural schematic diagram of the utility model;

[0026] Figure 2 For the utility model Figure 1 Exploded diagram of .

[0027] Marks and corresponding parts names in the attached drawings:

[0028] 1-conversion head, 11-support column, 12-first connecting part, 13-second connecting part, 131-fixing pin, 132-circlip groove, 133-elastic circular spring, 2-pressing part, 21-pressing head, 22-mounting hole, 3-guide part, 31-guide column, 32-threaded rod, 33-guide pin. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation methods of the utility model and their descriptions are only used to explain the utility model and are not intended to limit the utility model.

[0030] This embodiment provides a tool for replacing the rubber sleeve of an automobile support arm, such as Figure 1-2 As shown, including:

[0031] A conversion head 1, wherein the top of the conversion head 1 is connected to a pressure device to control the movement of the conversion head 1;

[0032] A pressing part 2, which is detachably connected to the outer wall of the conversion head 1 and is used to abut against the upper surface of the rubber sleeve;

[0033] The guide member 3 is connected to the bottom of the conversion head 1 and is used to extend into the center hole of the rubber sleeve to guide the rubber sleeve.

[0034] In the prior art, the bushing is not connected to the bottom cylinder. When the upper cylinder is pressed down, the bushing is easily displaced, which causes the upper cylinder and the bushing to be unable to make effective contact, resulting in inaccurate pressing position, easy damage to the automobile support arm and the support arm rubber sleeve, and even production accidents. In addition, the rubber sleeve replacement tools commonly used in the market do not have a guide positioning function. Technical maintenance personnel have to repeatedly adjust the positioning during operation. Since the parts pressed by the automobile support arm rubber sleeve are not connected to the automobile support arm, the bushing is easily displaced during the pressing process of the press.

[0035] In view of the above problems, the present embodiment provides a pressing member 2 and a guide member 3. The guide member 3 extends into the center hole of the rubber sleeve and can timely adjust the position of the rubber sleeve during the pressing process. In addition, the coordinated arrangement of the guide member 3 and the pressing member 2, on the one hand, ensures the guiding positioning of the rubber sleeve position, and on the other hand, ensures effective contact between the pressing member 2 and the rubber sleeve, thereby reducing the risk of damage to the automobile support arm and the support arm rubber sleeve.

[0036] The specific working process of this embodiment is:

[0037] The pressing member 2 is used to press against the upper surface of the rubber sleeve, and the guide member 3 is used to extend into the center hole of the rubber sleeve to guide and position the rubber sleeve, thereby reducing the risk of the rubber sleeve being offset and ensuring stable and effective pressing between the pressing member 2 and the rubber sleeve, thereby reducing damage to the rubber sleeve and the vehicle support arm.

[0038] The top of the conversion head 1 is connected to the pressure device, and the conversion head 1 is connected to the guide member 3 and the press member 2 to drive the guide member 3 and the press member 2 to move downward, thereby finally realizing the disassembly and installation of the rubber sleeve.

[0039] In addition, the pressing part 2 is detachably connected to the conversion head 1, so as to facilitate the replacement of pressing parts 2 of different sizes. Specifically, since the sizes of rubber sleeves on different automobile arms are different in actual operation, in order to adapt to the size of the rubber sleeve, the size of the pressing part 2 should be adapted to the size of the rubber sleeve.

[0040] According to another embodiment of the utility model, Figure 2 As shown, specifically, the conversion head 1 includes a support column 11, a first connection portion 12 connected to the pressure device is provided at the top of the support column 11, and a second connection portion 13 connected to the guide member 3 and the press member 2 is provided at the bottom of the support column 11.

[0041] Further, the pressure device includes a press or a press machine. In this embodiment, the press machine and the press machine are both provided with a cylinder rod, and the cylinder rod is stably connected to the first connecting portion 12. Specifically, an axial hole is provided at the bottom of the cylinder rod, and the first connecting portion 12 is a fixed shaft. After the fixed shaft is inserted into the axial hole, it is tightened by the top screw on the cylinder rod, thereby realizing a stable connection between the fixed shaft and the press machine or the press machine.

[0042] Furthermore, in order to ensure stable connection between the guide member 3 and the second connection part 13 , it is configured as follows: the guide member 3 is threadedly connected to the second connection part 13 , and the second connection part 13 includes a fixing pin 131 , and a threaded hole is provided at the bottom of the fixing pin 131 .

[0043] The guide member 3 comprises a guide column 31 , one end of which is connected to a threaded rod 32 threadably matched with the threaded hole, and the other end of which is connected to a guide pin 33 for extending into the center hole of the rubber sleeve.

[0044] In this embodiment, an M8 thread is provided on the threaded rod 32, and the fixing pin 131 in the second connecting portion 13 is threadedly connected to the threaded rod 32 on the guide member 3. On the one hand, a stable connection between the fixing pin 131 and the guide pin 33 is achieved, and on the other hand, the fixing pin 131 and the guide pin 33 are ensured to be in a concentric circle position. At the same time, the guide pin 33 is positioned so that the guide pin 33 can be aligned with the center hole of the rubber sleeve.

[0045] Among them, the size of the guide pin 33 is smaller than the size of the center hole of the rubber sleeve. Thereby ensuring that the guide pin 33 can effectively enter the center hole of the rubber sleeve to form a clearance fit. Specifically, the guide pin 33 is in the shape of a truncated cone with a larger upper part and a smaller lower part. It should be clear that the size of the guide pin 33 in this embodiment is smaller than the size of the center hole of the rubber sleeve within a reasonable range; that is, it can always ensure that the guide pin 33 plays a guiding and positioning role for the rubber sleeve. Specifically, when the guide pin 33 gradually enters the center hole of the rubber sleeve, if the rubber sleeve is offset, the inner wall of the center hole of the rubber sleeve collides with the guide pin 33, and the guide pin 33 will guide the rubber sleeve to correct the position of the rubber sleeve in time. As the insertion depth increases, the guide pin 33 and the center hole of the support arm rubber sleeve are closely clearance-fitted, and the center of the guide pin 33 tends to coincide with the center of the center hole of the support arm rubber sleeve, and finally the press head 21 coincides concentrically with the outer wall of the rubber sleeve, which is conducive to subsequent disassembly or installation.

[0046] Furthermore, the pressing member 2 comprises a pressing head 21 , and a mounting hole 22 for cooperating with the fixing pin 131 is formed in the middle of the pressing head 21 .

[0047] The parts commonly used in the market for pressing rubber sleeves do not have the function of quick disassembly and quick assembly, but use the form of threaded connection. The pressing tool head 21 is easy to damage the thread during the force-bearing process, thereby damaging the automobile support arm and the support arm rubber sleeve.

[0048] Therefore, in order to solve the above problem, the present embodiment is configured as follows: a retaining spring groove 132 is provided on the outer wall of the fixing pin 131 , an elastic retaining spring 133 for engaging with the mounting hole 22 is provided in the retaining spring groove 132 , and one side of the elastic retaining spring 133 is open.

[0049] In order to ensure the connection strength of the press head 21, it is set as follows: the outer diameter of the elastic retaining spring 133 is larger than the inner diameter of the mounting hole 22.

[0050] Specifically, Figure 1 As shown, the press head 21 in this embodiment is a cylindrical structure with an opening at the bottom. The size of the press head 21 matches the size of the rubber sleeve, so as to facilitate better extrusion and reduce the risk of damage to the rubber sleeve. The connection between the press head 21 and the fixing pin 131 is as follows: the elastic retaining spring 133 can be flexibly installed in the retaining spring groove 132 through the opening, and then the press head 21 is placed. Since the elastic retaining spring 133 has an elastic effect, when it is installed upward, the retaining spring groove 132 limits the elastic retaining spring 133 to a certain extent. After the press head 21 is positioned, the retaining spring clamps the cylinder wall of the press head 21 to achieve installation. No threads are used in the entire installation process, which avoids damage to the press head 21 and also achieves stable installation of the press head 21 and the fixing pin 131. The press head 21 and the conversion head 1 are connected using a quick disassembly and quick installation process, so that the press head 21 and the conversion head 1 can be disassembled and installed in one second, which greatly improves the work efficiency and accuracy, reduces the process steps of replacing the support arm rubber sleeve, and reduces the maintenance cost.

[0051] Different sizes of press heads 21 are selected for different support arm rubber sleeves. Specifically, in this embodiment, there are 25 sizes of press heads 21 to choose from. The inner diameter of each press head 21 is 21mm to match the size of the conversion head 1. In addition, the inner diameter of the 25 press heads 21 is in the range of 29.5-88.5mm, the outer diameter is in the range of 39.5-100.5mm, and the difference between the inner and outer diameters is less than 12.5mm. The height is in the range of 26-33mm; the smallest size of the press head 21 is 29.5mm in inner diameter, 39.5mm in outer diameter, and 26mm in height; the largest size of the press head 21 is 88.5mm in inner diameter, 100.5mm in outer diameter, and 26mm in height. The size of the medium-sized press head 21 can be 41mm in inner diameter, 51mm in outer diameter, and 33mm in height. By setting press heads 21 of different sizes, the sizes of different rubber sleeves can be better adapted.

[0052] The specific working process of the utility model is:

[0053] Before use, install the press head 21 and the guide member 3 on the conversion head 1. Specifically, the guide member 3 is installed by threading the fixing pin 131 with the threaded rod 32. The press head 21 abuts against the elastic retaining spring 133 to connect the press head 21 with the conversion head 1. Then, connect the conversion head 1 with the press or press machine. In this process, the size of the installed press head 21 matches that of the rubber sleeve. After installation, the guide pin 33 is located at the center of the press head 21, and the two are concentric. The press head 21 is detachably connected to the conversion head 1, and press heads 21 of different sizes can be replaced as needed.

[0054] Start the press or press machine to move, the conversion head 1 drives the press head 21 and the guide pin 33 to move downward, the guide pin 33 extends into the center hole of the rubber sleeve to guide and position the rubber sleeve, the press head 21 effectively presses the upper surface of the rubber sleeve to reduce the risk of the rubber sleeve being offset, and at the same time ensures that the press part 2 and the rubber sleeve are stably and effectively pressed, thereby reducing damage to the rubber sleeve and the vehicle support arm. Complete the installation and removal of the rubber sleeve.

[0055] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A tool for replacing a rubber sleeve of an automobile support arm, characterized in that: include: A conversion head, the top of which is connected to a pressure device to control the movement of the conversion head; A pressing part, which is detachably connected to the outer wall of the conversion head and is used to abut against the upper surface of the rubber sleeve; A guide piece is connected to the bottom of the conversion head and is used to extend into the center hole of the rubber sleeve to guide the rubber sleeve.

2. The automobile support arm rubber sleeve replacement tool according to claim 1, characterized in that: The conversion head comprises a supporting column, a first connecting portion connected to the pressure device is arranged at the top of the supporting column, and a second connecting portion connected to the guide member and the pressing member is arranged at the bottom of the supporting column.

3. The automobile support arm rubber sleeve replacement tool according to claim 2, characterized in that: The guide piece is threadedly connected to the second connection part. The second connection part comprises a fixing pin. A threaded hole is provided at the bottom of the fixing pin.

4. The automobile support arm rubber sleeve replacement tool according to claim 3, characterized in that: The guide member comprises a guide column, one end of which is connected to a threaded rod threadably matched with the threaded hole, and the other end of which is connected to a guide pin for extending into the center hole of the rubber sleeve.

5. The automobile support arm rubber sleeve replacement tool according to claim 4, characterized in that: The guide pin is in a truncated cone shape.

6. The automobile support arm rubber sleeve replacement tool according to claim 5, characterized in that: The size of the guide pin is smaller than the size of the center hole of the rubber sleeve.

7. The automobile support arm rubber sleeve replacement tool according to claim 3, characterized in that: The pressing tool part comprises a pressing tool head, and a mounting hole which is matched with a fixing pin and mounted in the middle of the pressing tool head is provided.

8. The automobile support arm rubber sleeve replacement tool according to claim 7, characterized in that: A retaining ring groove is provided on the outer wall of the fixing pin, and an elastic retaining ring for being connected with the mounting hole is provided in the retaining ring groove, and one side of the elastic retaining ring is open.

9. The automobile support arm rubber sleeve replacement tool according to claim 8, characterized in that: The outer diameter of the elastic retaining ring is larger than the inner diameter of the mounting hole.

10. The automobile arm rubber sleeve replacement tool according to claim 1, characterized in that: The pressure device comprises a press or a press machine.

Images