A bushing pressing tooling

Abstract

The present invention discloses a bushing pressing tooling, which includes a positioning rod, a first pressing head, a second pressing head, a locking structure and a nut. The two ends of the positioning rod are respectively provided with a first threaded rod section and a second threaded rod section, and a smooth rod section is arranged between the first threaded rod section and the second threaded rod section. One end of the first pressing head is provided with a first ring body, the first pressing head is sleeved on the first threaded rod section, and the first pressing head abuts against the rubber pad of the bushing to be pressed through the first ring body. One end of the second pressing head is provided with a second ring body, the second pressing head is sleeved on the second threaded rod section, and the second pressing head abuts against the rubber pad of another bushing to be pressed through the second ring body. The locking structure is pressed against one end of the first pressing head away from the first ring body. The nut is located at one end of the second pressing head away from the second ring body. The first pressing head and the second pressing head of the present invention abut against the rubber pads of the bushing, and will not cause wear to the bushing sleeve, improving the assembly quality of the bushing.

Description

Technical Field

[0001] The present invention relates to the field of new energy vehicles, and particularly relates to a bushing pressing tooling. Background Art

[0002] With the increasingly serious energy crisis in current society, new energy vehicles, especially electric vehicles, have attracted more and more social attention. The lower box body of the battery box (i.e., the battery tray) bears the mass of the entire battery pack and its own mass, and resists external impacts to protect the battery module and battery cells, which is an important safety structural part of electric vehicles.

[0003] A bushing generally includes a rubber body and a skeleton. The skeleton is generally a sleeve made of aluminum alloy, and the rubber body is wrapped around the outer ring of the sleeve. When the existing pressing tooling press-fits two bushings with interference, the end face of the sleeve is generally used as the force-bearing surface. Due to the large pressing force, it is easy to cause the end face of the sleeve to deform and fail. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides a bushing pressing tooling that can avoid damaging the end face of the sleeve during the pressing process.

[0005] A bushing pressing tooling according to an embodiment of the present invention includes a positioning rod, a first pressing head, a second pressing head, a locking structure, and a nut. The two ends of the positioning rod are respectively provided with a first threaded rod section and a second threaded rod section, and a smooth rod section is provided between the first threaded rod section and the second threaded rod section. The rod diameter of the smooth rod section is adapted to the inner diameter of the bushing to be pressed. One end of the first pressing head is provided with a first ring body. The first pressing head is sleeved on the first threaded rod section, and the first pressing head abuts against the rubber pad of the bushing to be pressed through the first ring body. One end of the second pressing head is provided with a second ring body. The second pressing head is sleeved on the second threaded rod section, and the second pressing head abuts against the rubber pad of another bushing to be pressed through the second ring body. The locking structure is detachably arranged on the first threaded rod section, and the locking structure presses against one end of the first pressing head away from the first ring body. The nut is arranged on the second threaded rod section, and the nut is located at one end of the second pressing head away from the second ring body.

[0006] A bushing pressing tooling according to an embodiment of the present invention has at least the following beneficial effects:

[0007] When the interference press-fitting of two bushings is performed using the bushing press-fitting tooling with the above structure, first insert the first punch into the positioning rod and position it on the positioning rod through the locking structure. Then, sequentially insert the two bushings onto the positioning rod, and then install the second punch and the nut to complete the assembly of the bushings on the bushing press-fitting tooling. Finally, use a wrench to hold the nut and apply pressure to push the second punch towards the first punch to complete the interference press-fitting of the two bushings. The structure of the present invention is simple and easy to operate. More importantly, both the first punch and the second punch of the present invention are abutted against the rubber pad of the bushing, avoiding abrasion of the sleeve end face of the bushing during the press-fitting process and being able to improve the assembly quality of the bushing.

[0008] According to some embodiments of the present invention, the positioning rod is provided with a shoulder corresponding to the installation position of the first punch.

[0009] According to some embodiments of the present invention, the positioning rod includes a first screw rod and a second screw rod, and the first screw rod and the second screw rod can be spliced into a whole.

[0010] According to some embodiments of the present invention, both the first threaded rod section and the smooth rod section are located on the first screw rod, and the second threaded rod section is located on the second screw rod.

[0011] According to some embodiments of the present invention, the first screw rod is provided with a mounting screw hole at the shaft end of the smooth rod section, and the shaft end of the second screw rod is provided with an external thread adapted to the mounting screw hole. The first screw rod and the second screw rod are assembled into a whole through the cooperation of the external thread and the mounting screw hole.

[0012] According to some embodiments of the present invention, both the first screw rod and the second screw rod are made of DC53.

[0013] According to some embodiments of the present invention, both the first punch and the second punch are made of DC53.

[0014] According to some embodiments of the present invention, the locking structure includes a locknut.

[0015] According to some embodiments of the present invention, the locking structure is a double-nut structure.

[0016] According to some embodiments of the present invention, the locking structure includes a flat washer, an elastic washer, and a self-locking nut.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, will become apparent in part from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following further describes the present invention in conjunction with the drawings and embodiments, where:

[0019] Figure 1 Schematic diagram of the application bushing pressing tooling of an embodiment of the present invention before pressing;

[0020] Figure 2 Cross-sectional view of the application bushing pressing tooling of an embodiment of the present invention before pressing;

[0021] Figure 3 Schematic diagram of the application bushing pressing tooling of an embodiment of the present invention after pressing;

[0022] Figure 4 Cross-sectional view of the application bushing pressing tooling of an embodiment of the present invention after pressing;

[0023] Figure 5 Exploded view of the bushing pressing tooling of an embodiment of the present invention;

[0024] Reference numerals in the drawings:

[0025] 101, first screw; 102, second screw; 103, first press head; 104, second press head; 105, first ring body; 106, second ring body; 107, bushing; 108, rubber pad; 109, locking structure; 110, nut; 111, shaft shoulder; 112, mounting screw hole; 113, plain rod section. Detailed implementation manners

[0026] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0027] In the description of the present invention, it should be understood that the orientation or positional relationship involved, such as up, down, etc., is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0028] In the description of the present invention, "a plurality of" means more than two. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0029] In the description of the present invention, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0030] Referring to Figures 1 to 5 As shown, a bushing pressing tooling according to an embodiment of the present invention includes a positioning rod, a first pressing head 103, a second pressing head 104, a locking structure 109, and a nut 110. Both ends of the positioning rod are respectively provided with a first threaded rod section and a second threaded rod section. A smooth rod section 113 is provided between the first threaded rod section and the second threaded rod section. The rod diameter of the smooth rod section 113 is adapted to the inner diameter of the bushing 107 to be pressed. One end of the first pressing head 103 is provided with a first ring body 105. The first pressing head 103 is sleeved on the first threaded rod section, and the first pressing head 103 abuts against the rubber pad 108 of the bushing 107 to be pressed through the first ring body 105. One end of the second pressing head 104 is provided with a second ring body 106. The second pressing head 104 is sleeved on the second threaded rod section, and the second pressing head 104 abuts against the rubber pad 108 of another bushing 107 to be pressed through the second ring body 106. The locking structure 109 is detachably arranged on the first threaded rod section, and the locking structure 109 presses against one end of the first pressing head 103 away from the first ring body 105. The nut 110 is arranged on the second threaded rod section, and the nut 110 is located at one end of the second pressing head 104 away from the second ring body 106.

[0031] When the bushing pressing tooling with the above structure is used for interference pressing of two bushings 107, first, the first pressing head 103 is inserted into the positioning rod and positioned on the positioning rod through the locking structure 109. Then, the two bushings 107 are sequentially sleeved on the positioning rod, and then the second pressing head 104 and the nut 110 are installed to complete the assembly of the bushing 107 on the bushing pressing tooling. Finally, a wrench is used to hold the nut 110 and apply pressure to push the second pressing head 104 to move towards the first pressing head 103 to complete the interference pressing of the two bushings 107. The structure of the present invention is simple and easy to operate. More importantly, both the first pressing head 103 and the second pressing head 104 of the present invention abut against the rubber pad 108 of the bushing 107, and will not cause wear to the sleeve end face of the bushing 107, which can improve the assembly quality of the bushing 107.

[0032] Referring to Figure 2 and Figure 4 As shown, it can be understood that a shoulder 111 is provided at the installation position of the positioning rod corresponding to the first pressing head 103. The setting of the shoulder 111 can facilitate the rapid positioning of the first pressing head 103 more conveniently. The first pressing head 103 abuts against the shoulder 111, and the locking structure 109 locks the first pressing head 103 on the positioning rod.

[0033] Since there are a wide variety of bushings 107 for the lower box body, and bushings 107 of different sizes will correspond to different models of the lower box body, for the interference fit of two bushings 107 of different models, both the pressing distance and the distance from the polished rod section 113 of the assembled bushing 107 will be adjusted. To make the application scope of the present invention wider, the positioning rod in this embodiment includes a first screw rod 101 and a second screw rod 102, and the first screw rod 101 and the second screw rod 102 can be spliced into an integral body. Different first screw rods 101 or second screw rods 102 can be replaced to adjust the pressing distance, and the adaptability of the present invention is higher.

[0034] It can be understood that both the first threaded rod section and the polished rod section 113 are located on the first screw rod 101, and the second threaded rod section is located on the second screw rod 102.

[0035] Refer to Figure 2 and Figure 4 As shown, it can be understood that the first screw rod 101 is provided with a mounting screw hole 112 at the axial end of the polished rod section 113, the axial end of the second screw rod 102 is provided with an external thread adapted to the mounting screw hole 112, and the first screw rod 101 and the second screw rod 102 are assembled into an integral body through the cooperation of the external thread and the mounting screw hole 112.

[0036] It can be understood that both the first screw rod 101 and the second screw rod 102 are made of DC53.

[0037] It can be understood that both the first pressing head 103 and the second pressing head 104 are made of DC53.

[0038] It can be understood that the locking structure 109 includes a locknut.

[0039] It can be understood that the locking structure 109 is a double-nut structure.

[0040] It can be understood that the locking structure 109 includes a flat washer, an elastic washer and a self-locking nut.

[0041] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge scope of those of ordinary skill in the art.

Claims

1. A bushing pressing tooling, characterized in that, Including: A positioning rod, with a first threaded rod section and a second threaded rod section respectively provided at both ends of the positioning rod. A smooth rod section is provided between the first threaded rod section and the second threaded rod section, and the rod diameter of the smooth rod section is adapted to the inner diameter of the bushing to be pressed. A first pressing head, with a first ring body provided at one end of the first pressing head. The first pressing head is sleeved on the first threaded rod section, and the first pressing head abuts against the rubber pad of the bushing to be pressed through the first ring body. A second pressing head, with a second ring body provided at one end of the second pressing head. The second pressing head is sleeved on the second threaded rod section, and the second pressing head abuts against the rubber pad of another bushing to be pressed through the second ring body. A locking structure, which is detachably arranged on the first threaded rod section, and the locking structure presses against one end of the first pressing head away from the first ring body. A nut, which is arranged on the second threaded rod section, and the nut is located at one end of the second pressing head away from the second ring body.

2. The bushing pressing tooling according to claim 1, characterized in that: The positioning rod is provided with a shoulder corresponding to the installation position of the first pressing head.

3. The bushing pressing tooling according to claim 2, wherein: The positioning rod includes a first screw and a second screw, and the first screw and the second screw can be spliced into a whole.

4. The bushing pressing tooling according to claim 3, characterized in that: The first threaded rod section and the smooth rod section are both located on the first screw, and the second threaded rod section is located on the second screw.

5. The bushing pressing tooling according to claim 4, wherein: The first screw is provided with a mounting screw hole at the shaft end of the smooth rod section, and the shaft end of the second screw is provided with an external thread adapted to the mounting screw hole. The first screw and the second screw are assembled into a whole through the cooperation of the external thread and the mounting screw hole.

6. The bushing pressing tooling according to claim 4, characterized in that: Both the first screw and the second screw are made of DC53.

7. The bushing pressing tooling according to claim 1, wherein: Both the first pressing head and the second pressing head are made of DC53.

8. The bushing pressing tooling according to claim 1, characterized in that: The locking structure includes a locknut.

9. The bushing pressing tooling according to claim 1, characterized in that: The locking structure is a double-nut structure.

10. The bushing pressing tooling according to claim 1, wherein: The locking structure includes a flat washer, an elastic washer and a self-locking nut.

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