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CN-224223083-U - Movable pressing mechanism for welding chassis structural member sleeve

CN224223083UCN 224223083 UCN224223083 UCN 224223083UCN-224223083-U

Abstract

The utility model belongs to the technical field of welding clamps for chassis structural members of automobiles, and particularly discloses a movable pressing mechanism for welding a chassis structural member sleeve, which comprises a pressing block, a limiting block and a spherical pressing head, wherein a connecting rod part of the spherical pressing head penetrates through the limiting block, one side surface of a ball head part of the spherical pressing head is abutted against the limiting block, the other side surface of the ball head part of the spherical pressing head is abutted against the pressing block, the limiting block is fixedly connected with the pressing block through a plurality of bolts arranged in the circumferential direction, and a pressing arm connecting block is arranged on the connecting rod part of the spherical pressing head. According to the utility model, through the integral structural design, the cylinder is started during welding, and the compression block is driven to compress the whole end face of the sleeve, so that the compression block can be attached to the whole end face of the sleeve, the stress is uniform, the compression gap compensation is effectively realized, the dimensional stability of a sample is improved, the reworking rate and the rejection rate are reduced, and the production cost is saved.

Inventors

  • LI ZHUO

Assignees

  • 上海众力汽车系统集团股份有限公司

Dates

Publication Date
20260512
Application Date
20250506

Claims (5)

  1. 1. The movable pressing mechanism for welding the chassis structural member sleeve is characterized by comprising a pressing block (6), a limiting block (5) and a spherical pressure head (1); The connecting rod part of the spherical pressure head (1) passes through the limiting block (5), one side surface of the ball head part of the spherical pressure head (1) is abutted against the limiting block (5), and the other side surface of the ball head part of the spherical pressure head (1) is abutted against the compression block (6); The limiting block (5) is fixedly connected with the compression block (6) through a plurality of bolts arranged in the circumferential direction; a pressing arm connecting block (4) is arranged on the connecting rod part of the spherical pressure head (1).
  2. 2. A movable pressing mechanism for welding a chassis structural member sleeve according to claim 1, wherein the limiting block (5) is provided with a through hole, the through hole is used for a connecting rod part of the spherical pressure head (1) to pass through, an opening at one side of the through hole, which is close to the spherical head part, is provided with a spherical recess, and the spherical recess is matched with the side surface of the spherical head part.
  3. 3. A movable pressing mechanism for welding a chassis structural member sleeve according to claim 1, wherein a spherical groove is formed on one side surface of the pressing block (6) close to the spherical pressing head (1), and the spherical groove is matched with the side surface of the spherical head.
  4. 4. The movable pressing mechanism for welding chassis structural member sleeves according to claim 1, wherein the end part of the pressing arm connecting block (4) is sleeved with the connecting rod part through a sleeved through hole, one end of the connecting rod part, which is far away from the ball part, is provided with external threads, one end of the connecting rod part, which is close to the ball part, is provided with an abutting part, the external threads of the end part of the connecting rod part are connected with the lock nut (2) and are used for placing the nut gasket (3) between the lock nut (2) and the pressing arm connecting block (4), and two side surfaces of the end part of the pressing arm connecting block (4) are respectively abutted with the nut gasket (3) and the abutting part.
  5. 5. A movable pressing mechanism for welding a chassis structural member sleeve according to claim 1, wherein the pressing arm connecting block (4) is provided with a plurality of pressing arm connecting holes.

Description

Movable pressing mechanism for welding chassis structural member sleeve Technical Field The utility model relates to the technical field of welding clamps for chassis structural members of automobiles, in particular to a movable pressing mechanism for welding a chassis structural member sleeve. Background In chassis structure sleeve welding, the locating pin is worn constantly in the use and makes the cylindricity of locating pin appear deviating, and in addition the manufacturing error of sleeve pipe internal diameter, and then arouse the difficult dress of sleeve pipe, usually by inactive hold-down mechanism with the sleeve pipe bottom of impressing, because about atress is uneven, can exist and appear sleeve pipe one end to be compressed tightly, the other end has the condition of clearance, produces the back sleeve pipe size fluctuation great from this, sample size qualification rate decline, disability rate and rework rate rise. Disclosure of utility model The utility model aims to solve the technical problems in the background art, and provides a movable pressing mechanism for welding a chassis structural member sleeve. In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: A movable pressing mechanism for welding a chassis structural member sleeve comprises a pressing block, a limiting block and a spherical pressure head; The connecting rod part of the spherical pressure head penetrates through the limiting block, one side surface of the ball head part of the spherical pressure head is abutted against the limiting block, and the other side surface of the ball head part of the spherical pressure head is abutted against the compression block; the limiting block is fixedly connected with the compression block through a plurality of bolts arranged in the circumferential direction; And a pressing arm connecting block is arranged on the connecting rod part of the spherical pressure head. The technical scheme is characterized in that the limiting block is provided with a through hole, the through hole is used for the connecting rod part of the spherical pressure head to pass through, one side of the through hole, which is close to the spherical head part, is provided with a spherical notch, and the spherical notch is matched with the side face of the spherical head part. The following is a further defined technical scheme of the utility model, a spherical groove is formed on one side surface of the compaction block, which is close to the spherical pressure head, and the spherical groove is matched with the side surface of the spherical head part. The end part of the pressing arm connecting block is sleeved with the connecting rod part through the sleeved through hole, an external thread is arranged at one end of the connecting rod part far away from the ball head part, an abutting part is arranged at one end of the connecting rod part close to the ball head part, the external thread of the end part of the connecting rod part is connected with the lock nut in a threaded manner, a nut gasket is arranged between the lock nut and the pressing arm connecting block, and two side surfaces of the end part of the pressing arm connecting block are respectively abutted with the nut gasket and the abutting part. The following is a further defined technical scheme of the utility model, and a plurality of press arm connecting holes are formed in the press arm connecting block. Compared with the prior art, the utility model has the following technical effects: According to the utility model, through the integral structural design, the cylinder is started during welding, and the compression block is driven to compress the whole end face of the sleeve, so that the compression block can be attached to the whole end face of the sleeve, the stress is uniform, the compression gap compensation is effectively realized, the dimensional stability of a sample is improved, the reworking rate and the rejection rate are reduced, and the production cost is saved. The utility model will be further described with reference to the drawings and examples. Drawings In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will briefly explain the embodiments or the drawings needed in the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present utility model and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art. FIG. 1 is a schematic diagram of the structure of the present utility model; FIG. 2 is a schematic cross-sectional view of the present utility model; FIG. 3 is a schematic view of the structure of the spherical indenter of the present utility model; FIG. 4 is a schematic view of a stopper according to the present utility model; FIG. 5 is a schematic view of a block s