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CN-224222339-U - Quick clamping device of cold pilger mill

CN224222339UCN 224222339 UCN224222339 UCN 224222339UCN-224222339-U

Abstract

The utility model relates to the technical field of cold pilger mills and provides a rapid clamping device of a cold pilger mill, which comprises a loading box, wherein one side of the loading box is rotationally connected with a clamping head, the inside of the clamping head is provided with a clamping rotating assembly, the clamping rotating assembly comprises a groove formed in the outer end of the clamping head, a clamping jaw is rotationally connected in the groove, the outer end of the clamping jaw is fixedly connected with a clamping plate, and the top end of the clamping plate is provided with a connecting groove. According to the utility model, the clamping plate at the bottom end of the clamping plate is driven to finish clamping operation according to the radius free adjustment of the tube blank through the connecting rod capable of sliding and rotating in the connecting groove at the top end of the clamping plate, so that the clamping plate is suitable for clamping operation of various tube blanks, the tube blank clamping operation is faster, the clamping precision is higher, meanwhile, the clamping head for clamping the tube blank can rotate at the outer end of the loading box, the tube blank can be rotated in the clamping process, and the clamping operation and the rotating operation are cooperatively performed, so that the tube blank processing efficiency is improved.

Inventors

  • Bian Yesen
  • HU XIAOFEI
  • ZHANG HAIYONG
  • ZHAO JIANHUA

Assignees

  • 河北途铂机电设备有限责任公司

Dates

Publication Date
20260512
Application Date
20250506

Claims (8)

  1. 1. The utility model provides a quick clamping device of cold pilger mill, includes loading box (1), a serial communication port, one side rotation of loading box (1) is connected with chuck (2), the inside of chuck (2) is equipped with joint rotary component (3), joint rotary component (3) including set up in the recess of chuck (2) outer end, the inside rotation of recess is connected with clamping jaw (301), the outer end fixedly connected with cardboard (302) of clamping jaw (301), linking groove (303) have been seted up on the top of cardboard (302), the inside swing joint of linking groove (303) has connecting rod (304), the bottom fixedly connected with splint (305), the one end fixedly connected with hollow spliced pole (306) of chuck (2), hollow spliced pole (306) with rotate between loading box (1), the outer end fixedly connected with driven gear (307) of driven gear (307) meshes and has drive gear (308), driven gear (307) with drive gear (308) rotate in loading box (1).
  2. 2. The rapid clamping device of a cold pilger mill according to claim 1, wherein the clamping rotating assembly (3) further comprises an inner connecting plate (309) fixedly connected to the inside of the chuck (2), a supporting rod (3010) is fixedly connected to the inner side of the inner connecting plate (309), a sliding plate (3011) is slidingly connected to the outer end of the supporting rod (3010), the sliding plate (3011) is slidingly connected to the inside of the chuck (2), and a rotating rod (3012) is rotationally connected between the clamping jaw (301) and the sliding plate (3011).
  3. 3. The rapid clamping device of a cold pilger mill according to claim 1, wherein a chute is formed at the outer end of the connecting rod (304), a movable rod is fixedly connected to the inside of the connecting groove (303), the movable rod is movably connected with the chute, the clamping rotary assembly (3) further comprises a first spring (3013) sleeved at the outer end of the connecting rod (304), and the first spring (3013) is fixedly connected between the clamping plate (302) and the clamping plate (305).
  4. 4. The rapid clamping device of a cold pilger mill according to claim 2, wherein the clamping rotating assembly (3) further comprises an assembling ring (3014) fixedly connected to the inside of the loading box (1), the assembling ring (3014) is rotationally connected with the driven gear (307), a hydraulic cylinder (3015) is fixedly connected to the outer end of the loading box (1), a push rod (3016) is fixedly connected to a telescopic part of the hydraulic cylinder (3015), the push rod (3016) is slidably connected to the inside of the hollow connecting column (306), the bottom end of the push rod (3016) is fixedly connected with the sliding plate (3011), a first servo motor (3017) is fixedly connected to the outer end of the loading box (1), and the output end of the first servo motor (3017) is fixedly connected with the transmission gear (308).
  5. 5. The rapid clamping device of a cold pilger mill according to claim 1, wherein guide rods (4) are symmetrically and fixedly connected to two sides of the loading box (1), guide rails (5) are slidably connected to the inside of the guide rods (4), floor boards (6) are symmetrically and fixedly connected to two ends of the guide rails (5), and stay bars (7) are clamped between the two floor boards (6).
  6. 6. The rapid clamping device of a cold pilger mill according to claim 5, wherein a group of the outer ends of the floor boards (6) are fixedly connected with a second servo motor (8), two groups of the floor boards (6) are rotatably connected with a bidirectional screw rod (9), the output end of the second servo motor (8) is fixedly connected with the bidirectional screw rod (9), the bottom end of the loading box (1) is fixedly connected with a connecting seat (10), and the bidirectional screw rod (9) is in threaded connection with the connecting seat (10).
  7. 7. The rapid clamping device of a cold pilger mill according to claim 5, wherein the other group of the cold pilger mill is characterized in that a first lower clamping ring (11) is fixedly connected to the top end of the floor (6), a connecting rod (12) is fixedly connected to the inner side of the first lower clamping ring (11), a second lower clamping ring (13) is fixedly connected to the outer end of the connecting rod (12), and upper clamping rings (14) are respectively arranged on the top ends of the first lower clamping ring (11) and the second lower clamping ring (13).
  8. 8. The rapid clamping device of a cold pilger mill according to claim 7, wherein the outer sides of the first lower clamping ring (11), the second lower clamping ring (13) and the upper clamping ring (14) are symmetrically and fixedly connected with side plates (15), a supporting rod (16) is slidably connected between the two side plates (15), and a second spring (17) is fixedly connected between the two ends of the supporting rod (16) and the side plates (15).

Description

Quick clamping device of cold pilger mill Technical Field The utility model relates to the technical field of cold pilger mills, in particular to a rapid clamping device of a cold pilger mill. Background ‌ Cold pilger mill is mainly used for cold rolling of pierced billets to produce seamless pipes with high precision and excellent physical properties. The cold pilger mill performs cold rolling on the pierced billet through an annular ring shape. The main components include a core head with a certain taper and a pair of holes with gradually changing holes and grooves. While the working frame reciprocates, the roller rotates, the tube blank is repeatedly rolled in the gap between the core head and the hole pattern, and the reduction of the outer diameter and the reduction of the wall thickness ‌ of the tube blank are realized. In the processing process of the cold pilger mill, a clamping device is used for clamping a pipe, wherein the clamping device is mainly used for fixing, feeding and rotating a pipe blank, ensuring that the pipe blank is kept stable in the rolling process, and matching with a roller to finish accurate plastic deformation. The pipe blank clamping assembly and the rotating assembly of the existing cold pilger mill are independent parts, manual positioning clamping is needed in the machining process, clamping parts are easy to deviate when clamping operation is inconvenient, precision of pipe blank machining is affected, meanwhile, the clamping device is easy to loosen in the rotating process of the pipe blank, and clamping effect of the pipe blank is affected. For this purpose, a quick clamping device for cold pilger mills is proposed, which solves the above-mentioned problems by means of a clamping plate which can be adjusted freely according to the outer diameter of the tube blank and a rotary structure which is connected to the clamping element. Disclosure of utility model The utility model provides a rapid clamping device of a cold pilger mill, which solves the problems that in the prior art, the tube blank is inconvenient to clamp, the speed is low, and in the tube blank rotating process, the clamping piece loosens to influence the tube blank processing precision and efficiency. The technical scheme of the utility model is as follows: The utility model provides a quick clamping device of cold pilger mill, includes the loading box, one side of loading box rotates and is connected with the dop, the inside of dop is equipped with joint rotating assembly, joint rotating assembly including set up in the recess of dop outer end, the inside rotation of recess is connected with the clamping jaw, the outer end fixedly connected with cardboard of clamping jaw, the linking groove has been seted up on the top of cardboard, the inside swing joint in linking groove has the connecting rod, the bottom fixedly connected with splint of connecting rod, the one end fixedly connected with hollow spliced pole of dop, hollow spliced pole with rotate between the loading box and be connected with, the outer end fixedly connected with driven gear of hollow spliced pole, driven gear's outer end meshing has drive gear, driven gear with drive gear rotate connect in the inside of loading box. Optionally, the rotary assembly of joint still includes fixed connection in the inside inscription board of dop, the inboard fixedly connected with of inscription board supports the pole, the outer end sliding connection who supports the pole has the slide, slide sliding connection in the inside of dop, the clamping jaw with rotate between the slide and be connected with the bull stick. Optionally, the spout has been seted up to the outer end of connecting rod, the inside fixedly connected with movable rod of linking groove, swing joint between slide bar and the spout, joint rotating assembly still includes the cover and locates the first spring of connecting rod outer end, first spring fixed connection in between cardboard with the splint. Optionally, the rotatory subassembly of joint still include fixed connection in the inside equipment ring of loading box, the equipment ring with rotate between the driven gear and be connected, the outer fixedly connected with pneumatic cylinder of loading box, the telescopic part fixedly connected with ejector pin of pneumatic cylinder, ejector pin sliding connection in the inside of hollow spliced pole, the bottom of ejector pin with fixed connection between the slide, the outer fixedly connected with first servo motor of loading box, the output of first servo motor with fixed connection between the drive gear. Optionally, the both sides symmetry fixedly connected with guide arm of loading box, the inside sliding connection of guide arm has the guide rail, two sets of the both ends symmetry fixedly connected with floor of guide rail, two sets of the joint has the vaulting pole between the floor. Optionally, one group of the outer ends of the landing boards are fixedly connected with a