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CN-224209263-U - Hollow full-stroke chuck device

CN224209263UCN 224209263 UCN224209263 UCN 224209263UCN-224209263-U

Abstract

The utility model discloses a hollow full-stroke chuck device, which comprises a base, wherein the base comprises a front disc, a rear disc and a hollow cavity body positioned between the front disc and the rear disc, two groups of clamping jaw assemblies are symmetrically arranged on the surface of the front disc respectively, each group of clamping jaw assemblies comprises two clamping jaw units which are symmetrically arranged, each clamping jaw unit comprises a guide rail and a clamping jaw base which is in sliding connection with the guide rail, clamping jaws are arranged on the clamping jaw base, a rack is arranged on the lower surface of the clamping jaw base, a first transmission gear for driving the rack to move is vertically arranged at the bottom of the rack, the first transmission gear is meshed with the rack, and a gear transmission assembly for driving the first transmission gear to rotate is arranged in the hollow cavity body.

Inventors

  • ZHANG CHENGXIAO
  • Zuo Longzhi
  • WANG DEHAO
  • YAN ZHANGJIAN

Assignees

  • 苏州迅镭激光科技有限公司

Dates

Publication Date
20260508
Application Date
20250414

Claims (7)

  1. 1. The hollow full-stroke chuck device is characterized by comprising a base, wherein the base comprises a front disc (1), a rear disc (2) and a hollow cavity body positioned between the front disc (1) and the rear disc (2), two groups of clamping jaw assemblies are symmetrically arranged on the surface of the front disc (1) respectively, each group of clamping jaw assemblies comprises two clamping jaw units (3) which are symmetrically arranged, each clamping jaw unit (3) comprises a guide rail (31) and a clamping jaw base (32) which is slidably connected with the guide rail (31), clamping jaws (33) are arranged on the clamping jaw base (32), a rack (34) is arranged on the lower surface of the clamping jaw base (32), a first transmission gear (35) for driving the rack (34) to move is vertically arranged at the bottom of the rack (34), the first transmission gear (35) is meshed with the rack (34), and a gear transmission assembly for driving the first transmission gear (35) to rotate is arranged in the hollow cavity body.
  2. 2. The hollow full-stroke chuck device as recited in claim 1, wherein 2 gear assemblies are provided, and wherein the 2 gear assemblies drive a first drive gear (35) of the two sets of jaw assemblies to rotate.
  3. 3. The hollow full-stroke chuck device as claimed in claim 1 or 2, wherein the gear transmission assembly comprises a fluted disc (41) and a fluted disc driving mechanism for driving the fluted disc (41) to rotate, a first rotating rod (42) is arranged on the side edge of the fluted disc (41), a second transmission gear (43) and a first conical gear (44) are respectively arranged on the first rotating rod (42), the second transmission gear (43) is meshed with the fluted disc (41), the hollow full-stroke chuck device further comprises a second rotating rod (45), the first transmission gear (35) is arranged on the second rotating rod (45), and a second conical gear (46) meshed with the first conical gear (44) is further arranged on the second rotating rod (45).
  4. 4. The hollow full-stroke chuck device as claimed in claim 3, wherein the fluted disc driving mechanism comprises a cylinder (51) and a cylinder rotating shaft (52), two ends of the cylinder rotating shaft (52) are respectively connected with the front disc (1) and the rear disc (2), a cylinder tail seat (53) is arranged at the tail end of the cylinder (51), the cylinder tail seat (53) is rotationally connected with the cylinder rotating shaft (52), a cylinder joint (54) is arranged at the driving end of the cylinder (51), and the hollow full-stroke chuck device further comprises a cantilever pin (55), one end of the cantilever pin (55) is rotationally connected with the fluted disc (41), and the other end of the cantilever pin (55) is rotationally connected with the cylinder joint (54).
  5. 5. The hollow full-stroke chuck device as claimed in claim 3, further comprising a first gear seat (47) and a second gear seat (48), wherein the first gear seat (47) and the second gear seat (48) are connected with the inner side surface of the front disc (1), the first rotating rod (42) is installed in the first gear seat (47) and is rotationally connected with the first gear seat (47), and the second rotating rod (45) is installed in the second gear seat (48) and is rotationally connected with the second gear seat (48).
  6. 6. The hollow full-stroke chuck device according to claim 1, wherein guide blocks (36) are arranged on both sides of the guide rail (31), guide grooves are formed in the guide blocks (36), and protruding blocks extending into the guide grooves are arranged on both sides of the clamping jaw base (32).
  7. 7. The hollow full-stroke chuck device according to claim 3, wherein an inner ring is arranged between the front disc (1) and the rear disc (2), 2 fluted discs (41) are sleeved on the inner ring, fluted disc (41) spacers are arranged between the 2 fluted discs (41), and a stop block (6) for preventing the fluted discs (41) from axially moving is arranged on the inner ring.

Description

Hollow full-stroke chuck device Technical Field The utility model relates to the field of chucks, in particular to a hollow full-stroke chuck device. Background In the laser pipe cutting machine industry, the use of a rear chuck is mainly composed of a gun barrel structure chuck and a heightened support type chuck, and clamping jaws of the two chucks are not designed in a full stroke mode. When clamping pipes, two methods of inner clamping and outer bracing are usually required to meet the clamping requirements of different sizes, and sometimes the installation gear or clamping jaw is required to be replaced to adapt to the wider pipe size. Because the cutting range of the small pipe cutting machine is smaller, the required number of clamping jaws is relatively smaller, and the installation of the gear is not complex. However, large pipe cutters require more mounting steps to cover different clamping requirements due to their wide cutting range, and the shorter jaw travel of the rear chuck. For those users engaged in external processing, frequent changing of the jaws or gear can significantly reduce production efficiency due to the wide variety and number of cut tubing. Therefore, it is necessary to develop a full stroke chuck to improve the production efficiency. Disclosure of utility model The utility model solves the technical problem of providing a hollow full-stroke chuck device, which can improve the formation of clamping jaws and solve the problem that the clamping jaws need to frequently adjust gears. The technical scheme includes that the hollow full-stroke chuck device comprises a base, wherein the base comprises a front disc, a rear disc and a hollow cavity body positioned between the front disc and the rear disc, two groups of clamping jaw assemblies are symmetrically arranged on the surface of the front disc respectively, each group of clamping jaw assemblies comprises two clamping jaw units which are symmetrically arranged, each clamping jaw unit comprises a guide rail and a clamping jaw base which is in sliding connection with the guide rails, clamping jaws are arranged on the clamping jaw base, a rack is arranged on the lower surface of the clamping jaw base, a first transmission gear for driving the rack to move is vertically arranged at the bottom of the rack, the first transmission gear is meshed with the rack, and a gear transmission assembly for driving the first transmission gear to rotate is arranged in the hollow cavity body. Further, the number of the gear transmission assemblies is 2, and the 2 gear transmission assemblies respectively drive the first transmission gears in the two groups of clamping jaw assemblies to rotate. The gear transmission assembly comprises a fluted disc and a fluted disc driving mechanism for driving the fluted disc to rotate, wherein a first rotating rod is arranged on the side edge of the fluted disc, a second transmission gear and a first conical gear are respectively arranged on the first rotating rod, the second transmission gear is meshed with the fluted disc, the gear transmission assembly further comprises a second rotating rod, the first transmission gear is arranged on the second rotating rod, and a second conical gear meshed with the first conical gear is further arranged on the second rotating rod. The fluted disc driving mechanism comprises a fluted disc, a fluted disc driving mechanism body and a cantilever pin, wherein the fluted disc driving mechanism body comprises a cylinder, a cylinder rotating shaft is further arranged, two ends of the cylinder rotating shaft are respectively connected with a front disc and a rear disc, a cylinder tail seat is arranged at the tail end of the cylinder, the cylinder tail seat is rotationally connected with the cylinder rotating shaft, a cylinder joint is arranged at the driving end of the cylinder, one end of the cantilever pin is rotationally connected with the fluted disc, and the other end of the cantilever pin is rotationally connected with the cylinder joint. Further is: the gear rack comprises a front disc, a first rotating rod, a second rotating rod, a first gear seat and a second gear seat, wherein the front disc is arranged on the front disc, the first rotating rod is arranged in the first gear seat and is rotationally connected with the first gear seat, and the second rotating rod is arranged in the second gear seat and is rotationally connected with the second gear seat. Further, guide blocks are arranged on two sides of the guide rail, guide grooves are formed in the guide blocks, and protruding blocks extending into the guide grooves are arranged on two sides of the clamping jaw base. The novel gear is characterized in that an inner ring is arranged between the front disc and the rear disc, 2 fluted discs are sleeved on the inner ring, a fluted disc spacer is arranged between the 2 fluted discs, and a stop block for preventing the fluted discs from axially moving is arranged on the inner ring