Automobile connecting rod clamp spring press-fitting device

Abstract

The utility model provides an automobile connecting rod snap spring press-fitting device, which relates to the technical field of automobile part assembly, and comprises a mounting seat, a mounting cylinder is arranged at the bottom of the mounting seat, a plurality of pawl pushing rods are circumferentially distributed on the mounting cylinder, the top ends of the pawl pushing rods are hinged on the mounting cylinder, and the bottom ends of the pawl pushing rods are provided with pressure plates. And abutting air cylinders used for driving the pushing claw rods to rotate in the direction close to the center of the mounting barrel are arranged on the mounting base and located on the outer sides of the pushing claw rods, a limiting disc is arranged at the bottom of the mounting barrel, and a plurality of limiting grooves allowing the pushing claw rods to rotate in are formed in the limiting disc. According to the utility model, the reliability when the clamp spring is pressed down can be ensured, the fatigue failure of the holding force caused by long-term use can be avoided, and the press fitting part can be independently replaced after being worn, thereby being economical and environment-friendly.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts assembly, specifically relates to a kind of automobile connecting rod snap spring press fitting device. BACKGROUND

[0002] Automobile connecting rod is the auxiliary moving piece of connecting shock absorber and stabilizer bar or frame and stabilizer bar on automobile chassis, and it plays the role of force and torque transmission;The most common structure is spherical hinge type two-force rod, and the spherical hinge structure is ball pin sleeve, ball pin, bottom plate, dust cover and snap spring;The assembly sequence is that ball pin sleeve is added ball pin, bottom plate is assembled together by riveting, then dust cover is worn, and finally snap spring is press fitted.As the main function of snap spring is to fix and seal dust cover and connecting rod ball head, to prevent mud and other impurities from entering product ball head part during vehicle driving, so as to cause connecting rod failure, so the assembly quality of snap spring can directly affect the durability of product, and it is an important link in product production process.In the process of snap spring press fitting, press fitting device is needed to assist assembly with taper sleeve.

[0003] REFERENCE Figure 3 As shown in the figure, the press fitting device of the prior art includes slide regulator 7 and multiple elastic O-rings 8, the structure of slide regulator 7 is cylindrical and the bottom is divided into four pressure petals, and the multiple elastic O-rings 8 are sleeved outside the slide regulator 7.After the snap spring is sleeved on the taper sleeve 6, the snap spring is pressed down by the slide regulator 7, the pressure petals of the lower end surface of the slide regulator 7 push the snap spring on the outer circle of the taper sleeve 6, the snap spring gradually expands and completely passes through the taper sleeve 6, and finally is press fitted to the specified position of the spherical hinge structure, i.e.the snap spring slot of the ball pin structure.

[0004] In actual use, the elastic O-rings 8 on the slide regulator 7 are constantly expanded and contracted, and the holding force fails quickly;When the contraction force of the elastic O-rings 8 cannot meet the requirements, the slide regulator 7 is likely to jump over the snap spring during the pressing process, so that the snap spring cannot be pressed to the right position;And the pressure petals of the slide regulator 7 are a whole structure, when the end surface of the pressure petals is worn, the contact surface with the snap spring is reduced, the snap spring is unevenly stressed, and the double-ring snap spring is likely to produce the defect of crossed back edges, which reduces the holding force and affects the sealing performance of the product ball head. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a kind of automobile connecting rod snap spring press fitting device, which can ensure the reliability of snap spring pressing, will not appear holding force fatigue failure due to long-term use, and can be replaced individually after the wear of press fitting parts, which is economical and environmentally friendly.

[0006] The utility model discloses a kind of automobile connecting rod clamp spring press fitting devices, including mounting seat, the bottom of mounting seat is provided with installation cylinder, multiple push claw rods are distributed in circumferential direction on installation cylinder, the top end of push claw rod is hingedly arranged on installation cylinder, bottom end is provided with pressure plate, the outside of each push claw rod is provided with the abutting cylinder for driving push claw rod to rotate towards the center direction of installation cylinder on mounting seat, the bottom of installation cylinder is provided with limit disc, multiple limit slots for push claw rod to rotate are opened in limit disc.

[0007] Further, the pressure plate and the push claw rod are rigid metal pieces.

[0008] Further, the pressure plate is detachably arranged on the push claw rod.

[0009] Further, the bottom of the pressure plate is provided with a connecting bolt, and the bottom end of the push claw rod is provided with a threaded hole for inserting the connecting bolt.

[0010] Further, it further includes a guide member, which is slidingly arranged at the center position of the installation cylinder along the axial direction of the installation cylinder.

[0011] Further, the guide member includes a guide rod and a guide cylinder, the bottom end of the guide rod passes through the installation cylinder and extends out of the installation cylinder, the guide cylinder is arranged at one end of the guide rod outside the installation cylinder, and the bottom of the guide cylinder is provided with a guide groove matched with the shape of the taper sleeve.

[0012] Further, the bottom of the mounting seat is provided with a first support, the cylinder barrel of the abutting cylinder is hingedly arranged on the first support, a second support is arranged on the piston rod of the abutting cylinder, and the second support is rotationally connected with the push claw rod.

[0013] The technical scheme of the utility model has at least the following advantages and beneficial effects:

[0014] 1. The utility model discloses a kind of automobile connecting rod clamp spring press fitting devices, including mounting seat, the bottom of mounting seat is provided with installation cylinder, multiple push claw rods are distributed in circumferential direction on installation cylinder, the top end of push claw rod is hingedly arranged on installation cylinder, bottom end is provided with pressure plate, the outside of each push claw rod is provided with the abutting cylinder for driving push claw rod to rotate towards the center direction of installation cylinder on mounting seat, the bottom of installation cylinder is provided with limit disc, multiple limit slots for push claw rod to rotate are opened in limit disc.

[0015] 2. The utility model discloses a kind of automobile connecting rod clamp spring press fitting devices, including mounting seat, the bottom of mounting seat is provided with installation cylinder, multiple push claw rods are distributed in circumferential direction on installation cylinder, the top end of push claw rod is hingedly arranged on installation cylinder, bottom end is provided with pressure plate, the outside of each push claw rod is provided with the abutting cylinder for driving push claw rod to rotate towards the center direction of installation cylinder on mounting seat, the bottom of installation cylinder is provided with limit disc, multiple limit slots for push claw rod to rotate are opened in limit disc. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole structure schematic view of the utility model;

[0017] Figure 2 Figure 1 is a structural schematic view of the mounting cylinder, the pushing claw rod, the pressing disc and the guiding member of the utility model;

[0018] Figure 3 Figure 1 is a structural schematic view of the prior art;

[0019] Reference signs: 1 - mounting seat, 11 - mounting cylinder, 12 - limiting disc, 121 - limiting groove, 13 - first support, 2 - pushing claw rod, 3 - pressing disc, 31 - connecting bolt, 4 - abutting cylinder, 41 - second support, 5 - guiding member, 51 - guiding rod, 52 - guiding cylinder, 521 - guiding groove, 6 - taper sleeve, 7 - sliding device, 8 - elastic O-ring. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the utility model.

[0022] Embodiment 1

[0023] The following refers to Figure 1 , Figure 2As shown, further illustrated in conjunction with the specific embodiments, the embodiment provides a kind of automobile connecting rod clamp spring press fitting device, including mounting seat 1, the bottom of mounting seat 1 is provided with installation cylinder 11, multiple push jaw rods 2 are distributed in circumferential direction on installation cylinder 11, the top end of push jaw rod 2 is hingedly arranged on installation cylinder 11, bottom end is equipped with pressure plate 3, and the outside of each push jaw rod 2 is equipped with the abutting cylinder 4 for driving push jaw rod 2 to rotate towards the center direction of installation cylinder 11 on mounting seat 1, the bottom of installation cylinder 11 is provided with limit disc 12, and multiple limit grooves 121 for the rotation of push jaw rod 2 are opened in limit disc 12.Simultaneously start multiple abutting cylinders 4 and make the piston rod of abutting cylinder 4 move to the outside of cylinder barrel, drive multiple push jaw rods 2 to rotate in the direction of mutual convergence, make pressure plate 3 and taper sleeve 6 adhere to each other, in the process of the overall downward movement of press fitting device, pressure plate 3 can drive clamp spring to move from the top end of taper sleeve 6 to the bottom end of taper sleeve 6 until disengaging from taper sleeve 6, reach the specified installation position on connecting rod ball hinge.

[0024] Referring to Figure 1 As shown, the bottom of mounting seat 1 is equipped with first support 13, and the cylinder barrel of abutting cylinder 4 is hingedly arranged on first support 13, and the piston rod of abutting cylinder 4 is equipped with second support 41, and second support 41 is rotatably connected with push jaw rod 2.By hingedly installing both ends of abutting cylinder 4 between mounting seat 1 and push jaw rod 2, abutting cylinder 4 can adapt to the change of position of push jaw rod 2 in the process of rotation.

[0025] The pressure plate 3 and push jaw rod 2 in the embodiment are both rigid metal pieces, when pressure plate 3 contacts the taper surface of taper sleeve 6, the overall downward movement of press fitting device will apply counterforce to abutting cylinder 4, and the piston rod of abutting cylinder 4 will retract a distance into cylinder barrel;With the continuous downward movement of pressure plate 3, the piston rod of abutting cylinder 4 continues to retract and makes pressure plate 3 tightly adhere to taper sleeve 6, so as to ensure that the contact between the bottom surface of pressure plate 3 and clamp spring is more stable.

[0026] Referring to Figure 2 As shown, the bottom of pressure plate 3 is equipped with connecting bolt 31, and the bottom end of push jaw rod 2 is equipped with threaded hole for inserting connecting bolt 31.Due to the fact that pressure plate 3 is a wearing part, by detachably installing pressure plate 3 on push jaw rod 2, pressure plate 3 can be replaced alone after wearing, without the need to replace push jaw rod 2, thereby reducing material cost.

[0027] Referring to Figure 1 、 Figure 2As shown, the clamp spring press-fitting device further comprises a guide 5, which is slidably arranged at the center of the mounting cylinder 11 along the axial direction of the mounting cylinder 11. The guide 5 comprises a guide rod 51 and a guide cylinder 52, the bottom end of the guide rod 51 penetrates through the mounting cylinder 11 and extends out of the mounting cylinder 11, the guide cylinder 52 is arranged at the end of the guide rod 51 outside the mounting cylinder 11, and the bottom of the guide cylinder 52 is provided with a guide groove 521 matched with the shape of the taper sleeve 6. Before the clamp spring is press-fitted, the guide rod 51 is first moved downward until the guide groove 521 at the bottom of the guide cylinder 52 is sleeved on the top of the taper sleeve 6, and in this process, the taper sleeve 6 and the connecting rod spherical hinge structure are pressed and guided to ensure that the taper sleeve 6 and the connecting rod spherical hinge structure are in the appropriate position in the subsequent process of press-fitting the clamp spring.

[0028] The preferred embodiments of the utility model are merely used for limiting the utility model, for those skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A pressing device for pressing together a car connecting rod retaining spring, characterized in that, The application relates to a pusher claw device, which comprises a mounting base (1), the bottom of the mounting base (1) is provided with a mounting cylinder (11), a plurality of pusher claw rods (2) are distributed on the mounting cylinder (11) in the circumferential direction, the top end of the pusher claw rod (2) is hingedly arranged on the mounting cylinder (11), and the bottom end is provided with a pressing disc (3), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the mounting base (1) and located outside each pusher claw rod (2), a pressing disc (3) is arranged on the 2. The automobile connecting rod clamp spring press-fitting device according to claim 1, characterized in that, ​ 3. The automobile connecting rod clamp spring press-fitting device according to claim 1, characterized in that, ​ 4. The automobile connecting rod clamp spring press-fitting device according to claim 3, characterized in that, ​ 5. The automobile connecting rod clamp spring press-fitting device according to claim 1, characterized in that, ​ 6. The automobile connecting rod clamp spring press-fitting device according to claim 5, characterized in that, ​ 7. The automobile connecting rod clamp spring press-fitting device according to claim 1, characterized in that, ​

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