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CN-117415768-B - O-shaped ring installation device capable of being pre-opened and self-returned

CN117415768BCN 117415768 BCN117415768 BCN 117415768BCN-117415768-B

Abstract

The invention relates to an O-shaped ring mounting device capable of pre-expanding and self-returning, which comprises a bottom plate, a moving assembly, a telescopic assembly and a driving assembly, wherein the moving assembly comprises a reference block which is connected with the telescopic assembly and used for placing an O-shaped ring, the telescopic assembly comprises an abutting block and a retaining piece, one side of the abutting block is provided with a first abutting surface used for being in contact with the O-shaped ring, and the other side of the abutting block is provided with a second abutting surface used for being in contact with a workpiece. A plurality of moving assemblies and flexible subassembly evenly arrange along the bottom plate circumference, drive assembly drives flexible subassembly and removes, and then evenly stretch O type circle, flexible subassembly's butt piece removes towards the bottom plate along bottom plate axial direction, after the butt piece resets, the holder makes it keep unsettled, when the suit O type circle, the work piece pushes down the butt piece, the butt piece slides relative O type circle medial surface, after the completion of pushing down, O type circle breaks away from with the butt piece, the suit is to the work piece on, in-process, O type circle bottom butt all the time on the benchmark piece, avoid O type circle to take place distortion.

Inventors

  • BAI XIAOFENG
  • ZHOU ZEWEI
  • XIA CHENGRUI
  • WU QIN
  • MENG ZHIYONG

Assignees

  • 广汽乘用车有限公司

Dates

Publication Date
20260505
Application Date
20231020

Claims (6)

  1. 1. The O-shaped ring mounting device for pre-opening and self-returning is characterized by comprising a base plate (1), a plurality of moving assemblies (2) which are uniformly arranged relative to the circumference of the base plate (1) and slide along the radial direction of the base plate (1), a telescopic assembly (3) which is mounted on the moving assemblies (2) and a driving assembly (6) which is connected with the base plate (1) and is used for driving the moving assemblies (2) to reciprocate, wherein the moving assemblies (2) comprise a reference block (201) which is connected with the telescopic assembly (3) and is used for placing an O-shaped ring, the telescopic assembly (3) comprises an abutting block (301) which is connected with the reference block (201) in a sliding mode along the axial direction of the base plate (1) and a retaining piece (302) which is connected with the abutting block (301) and keeps the abutting block (301) in an extending state, one side of the abutting block (301) is provided with a first abutting surface (303) which is used for contacting with the O-shaped ring, the other side is provided with a second abutting surface (304) for contacting with a workpiece, the moving assembly (2) further comprises a sliding block (202) sliding along the radial direction of the bottom plate (1) and a connecting rod (203) connected with the driving assembly (6), the end part of the sliding block (202) is connected with the reference block (201), the driving assembly (6) comprises a driving plate (601) rotationally connected with the bottom plate (1), a rotating rod (602) connected with the driving plate (601) and a cover plate (603) connected with the bottom plate (1), the driving plate (601) is provided with a plurality of limiting holes (604) respectively matched with the connecting rod (203), the connecting rod (203) is in sliding sleeve joint with the limiting holes (604), the driving plate (601) drives the sliding block (202) to move through the limiting holes (604), the driving plate (601) and the cover plate (603) are respectively provided with through holes for avoiding the telescopic assembly (3), the bottom of the cover plate (603) is provided with a guide section (608) for accommodating the groove (606), the guide section (608) and the locking section (606) between the guide section (606) and the locking section (608), the rotating rod (602) is connected with the upper part of the driving disc (601).
  2. 2. The pre-opening and self-returning O-ring mounting device according to claim 1, wherein a positioning rod (7) is commonly connected between the cover plate (603) and the bottom plate (1).
  3. 3. The pre-opening and self-returning O-ring mounting device according to claim 1, wherein the cover plate (603) and the bottom plate (1) are connected through a plurality of connecting pieces (8), and the connecting pieces (8) penetrate through the cover plate (603) and are connected with the bottom plate (1).
  4. 4. The pre-expanding and self-returning O-ring mounting device according to any one of claims 1-3, wherein the telescopic assembly (3) further comprises a fixing piece (305) connected with the abutting block (301), the retaining piece (302) is an elastic piece, two ends of the retaining piece are respectively abutted with the bottom of the abutting block (301) and the top of the bottom plate (1), the reference block (201) is provided with a strip-shaped mounting hole (204), and the fixing piece (305) passes through the mounting hole (204) to be connected with the abutting block (301).
  5. 5. The pre-opening and self-returning O-ring mounting device according to claim 4, wherein the abutting block (301) is connected with two fixing pieces (305), and a gasket (306) is further arranged between the fixing pieces (305) and the reference block (201).
  6. 6. The pre-distraction and self-return O-ring mounting device according to claim 4, wherein said first abutment surface (303) is an arcuate surface.

Description

O-shaped ring installation device capable of being pre-opened and self-returned Technical Field The invention relates to the technical field of machinery industry, in particular to an O-shaped ring installation device capable of pre-expanding and self-returning. Background O-rings are common seals in the mechanical industry, are generally made of rubber materials, and are generally sleeved on a workpiece when in use. In the prior art, a manual or mounting device is generally used for sleeving the O-shaped ring; in the existing installation device, the manual labor-saving device for assembling the O-shaped ring comprises a hand-held fixed block and a hand-held clamp, wherein the hand-held fixed block is a cylinder, one side of the cylinder stretches out of a long rod, a plurality of pin bodies are arranged on the periphery of the lower surface of the cylinder, the tail end of each pin body is connected with the hand-held clamp by a hand-held clamp pin, a through hole is formed in the middle of the cylinder, a guide rod body is arranged in the through hole, the lower end of the guide rod body is connected with a push block positioned in the periphery of the circumference formed by the pin bodies, the push block is round, a plurality of bosses are arranged on the periphery of the guide rod body, the bosses are positioned between the two pin bodies, the upper end of the guide rod body is connected with the hand-held push plate, the upper part of the guide rod body is sleeved with a spring, the front end of the hand-held push plate is provided with the through hole, the through hole is sleeved on the guide rod on the upright hand-held fixed block, and the outer side of the lower part of the grip clamp is provided with an inner groove. The device adopts a plurality of grab clamps to uniformly distribute, the force of expanding the periphery of the 0-shaped ring is also relatively uniform, the labor intensity of operators can be reduced, and the installation quality is improved. However, the device has large self weight, the O-shaped ring cannot be locked after being preassembled in place, the device needs to be held by a hand for a long time, the O-shaped ring which is spread by the device slides to the groove when being contracted, the flat pushing function is not needed, and the O-shaped ring is easy to twist. Disclosure of Invention The invention provides the O-shaped ring mounting device which is pre-opened and self-returned in order to overcome the defect that the O-shaped ring is easy to twist when being sleeved in the prior art. The technical scheme includes that the O-shaped ring mounting device comprises a bottom plate, a plurality of moving assemblies which are uniformly arranged relative to the circumference of the bottom plate and slide along the radial direction of the bottom plate, a telescopic assembly which is mounted on the moving assemblies, and a driving assembly which is connected with the bottom plate and is used for driving the moving assemblies to reciprocate, wherein the moving assemblies comprise datum blocks which are connected with the telescopic assembly and are used for placing O-shaped rings, the telescopic assembly comprises abutting blocks which are connected with the datum blocks in a sliding mode along the axial direction of the bottom plate, and a retaining piece which is connected with the abutting blocks and is used for enabling the abutting blocks to be in an extending state, one side of each abutting block is provided with a first abutting surface which is used for being in contact with an O-shaped ring, and the other side of each abutting block is provided with a second abutting surface which is used for being in contact with a workpiece. The plurality of moving assemblies are uniformly arranged relative to the circumference of the bottom plate, the driving assembly simultaneously drives the plurality of moving assemblies to synchronously move, the plurality of moving assemblies synchronously move towards the axis of the bottom plate or away from the axis of the bottom plate, the plurality of telescopic assemblies are respectively arranged on the moving assemblies in a one-to-one correspondence manner, when the O-shaped rings are placed, the moving assemblies and the telescopic assemblies are positioned close to the axis of the bottom plate, the O-shaped rings are placed on reference blocks of the moving assemblies, the heights of the reference blocks in each moving assembly are consistent, the O-shaped rings can be kept in a horizontal state when placed, then the moving assemblies and the telescopic assemblies are driven by the driving assembly to move away from the axis of the bottom plate, so that a first abutting surface of an abutting block of the telescopic assemblies abuts against the inner side surface of the O-shaped ring, the first abutting surface of the O-shaped rings exerts a pulling force on the O-shaped rings, so that the O-shaped rings expand, and because ea