CN-224209781-U - Clamping head is adjusted in test machine clamping

CN224209781UCN 224209781 UCN224209781 UCN 224209781UCN-224209781-U

Abstract

The utility model discloses a clamping and adjusting chuck of a testing machine, which comprises an inner cylinder body, wherein sliding seats are arranged at two sides of the inner cylinder body, the sliding seats penetrate through the outer wall of the inner cylinder body, one sliding seat can rotate along the axis of the inner cylinder body, clamping blocks are arranged on the radial inner side of the inner cylinder body, the clamping blocks can rotate along the axis of the inner cylinder body under the drive of one sliding seat, the clamping blocks are arranged in pairs, the clamping blocks are provided with wall surfaces, the two wall surfaces are oppositely arranged, a clearance cavity is formed between the two wall surfaces, two sides of the clearance cavity are provided with opening parts II, the wall surfaces are in the shape of concave arc surfaces, the inner cylinder body is provided with opening parts I, one opening part I is arranged at the same side as the opening part II, and the clamping blocks rotate to enlarge the opening of one opening part II. The utility model provides a clamping adjusting chuck of a testing machine, which increases the clamping reliability of a clamping body.

Inventors

Duan Zhuming
GE XIUHONG
XIAO YUNFEI
WANG MINGXU
Dai Yingbing

Assignees

浙江礼显试验仪器制造有限公司

Dates

Publication Date: 20260508
Application Date: 20250515

Claims (8)

1. The utility model provides a chuck is adjusted in test machine clamping, its characterized in that includes interior barrel (1), sliding seat (4) are installed to interior barrel (1) both sides, sliding seat (4) pass interior barrel (1) outer wall, one of them sliding seat (4) can be followed interior barrel (1) axis rotates, clamp splice (5) are installed to sliding seat (4), clamp splice (5) are located interior barrel (1) radial inboard, clamp splice (5) can be followed under one of them sliding seat (4) drive interior barrel (1) axis rotates, clamp splice (5) set up in pairs, clamp splice (5) are equipped with wall (52), two wall (52) set up relatively, two be formed with clearance chamber (6) between wall (52), clearance chamber (6) both sides are formed with opening second (61), wall (52) shape is concave arc face, interior barrel (1) is equipped with opening first (12), first opening (12) and second opening (61) are with this opening second (61) are rotated in order to make one of them opening second (61).
2. The clamping adjustment chuck for the testing machine according to claim 1, wherein the second opening (61) is located at a minimum distance between the two wall surfaces (52) when the two clamping blocks (5) are axially symmetrically distributed along the axis of the inner cylinder (1).
3. The clamping adjustment chuck of the testing machine according to claim 1, further comprising a rotary drum (2), wherein the inner wall of the rotary drum (2) is rotationally connected with the outer wall of the inner cylinder body (1), the rotary drum (2) comprises a sliding part (22), one sliding seat (4) is installed on the sliding part (22), and the sliding part (22) rotates to drive the sliding seat (4) to rotate.
4. A testing machine clamping adjustment chuck according to claim 3, characterized in that the inner wall of the rotary drum (2) is provided with an inner threaded portion (21), the outer wall of the inner cylinder (1) is provided with an outer threaded portion (13), and the inner wall of the rotary drum (2) is in threaded connection with the outer wall of the inner cylinder (1).
5. A testing machine clamping adjustment chuck according to claim 3, characterized in that the inner wall surface of the sliding part (22) is attached to the outer wall surface of the inner cylinder (1) so that the sliding part (22) can rotate along the axis of the inner cylinder (1).
6. The clamping adjustment chuck of the testing machine according to claim 1, wherein the inner cylinder (1) is provided with a chute (11), and the sliding seat (4) passes through the chute (11).
7. The clamping adjustment chuck of a testing machine according to claim 1, characterized in that the clamping block (5) comprises a connecting part (51), the sliding seat (4) is inserted into the connecting part (51), and the sliding seat (4) is connected with the connecting part (51) through a bearing (511).
8. A clamping and adjusting chuck for a testing machine according to claim 3, wherein the inner cylinder body (1) is provided with an adjusting block (3), the adjusting block (3) and the sliding part (22) are respectively located at two sides of the inner cylinder body (1), and one of the sliding seats (4) is arranged on the adjusting block (3).

Description

Clamping head is adjusted in test machine clamping Technical Field The utility model relates to the technical field of clamping components of a testing machine, in particular to a clamping head for clamping and adjusting the testing machine. Background When the current testing machine carries out test, need press from both sides tight fixedly with test piece, to circular pipe fitting, when pressing from both sides clamping jaw is direct to draw close and directly compress tightly the pipe fitting along the pipe fitting is radial, and the pipe fitting is because put the position is improper, appears the slope easily after pressing from both sides tightly, influences the pipe fitting and carries out axial tensile test, exists not enoughly. Disclosure of utility model The utility model aims to overcome the defects in the prior art, and provides a clamping adjusting chuck of a testing machine, which increases the clamping reliability of a clamping body. In order to achieve the purpose, the clamping head for the testing machine comprises an inner cylinder body, sliding seats are arranged on two sides of the inner cylinder body, the sliding seats penetrate through the outer wall of the inner cylinder body, one sliding seat can rotate along the axis of the inner cylinder body, clamping blocks are arranged on the radial inner side of the inner cylinder body and can rotate along the axis of the inner cylinder body under the driving of one sliding seat, the clamping blocks are arranged in pairs, the clamping blocks are provided with wall surfaces, the two wall surfaces are oppositely arranged, a clearance cavity is formed between the two wall surfaces, two sides of the clearance cavity are provided with opening parts II, the wall surfaces are in the shape of an inward concave arc surface, the inner cylinder body is provided with opening parts I, one opening part I is arranged on the same side as the opening part II, and the clamping blocks rotate to enlarge the opening of the opening part II. The utility model further provides that when the two clamping blocks are symmetrically distributed along the axis of the inner cylinder body, the second opening part is positioned at the minimum distance between the two wall surfaces. The utility model further provides a rotary drum, the inner wall of the rotary drum is rotationally connected with the outer wall of the inner cylinder body, the rotary drum comprises a sliding part, one sliding seat is arranged on the sliding part, and the sliding part rotates to drive the sliding seat to rotate. The utility model is further provided that the inner wall of the rotary drum is provided with an inner threaded part, the outer wall of the inner drum body is provided with an outer threaded part, and the inner wall of the rotary drum is in threaded connection with the outer wall of the inner drum body. The utility model is further provided that the inner wall surface of the sliding part is attached to the outer wall surface of the inner cylinder body so that the sliding part can rotate along the axis of the inner cylinder body. The utility model is further provided that the inner cylinder body is provided with a chute, and the sliding seat penetrates through the chute. The utility model further provides that the clamping block comprises a connecting part, the sliding seat is inserted into the connecting part, and the sliding seat is connected with the connecting part through a bearing. The utility model is further provided with the adjusting block arranged on the inner cylinder body, the adjusting block and the sliding block are respectively positioned on two sides of the inner cylinder body, and one sliding seat is arranged on the adjusting block. In summary, the utility model has the following beneficial effects: 1. The two wall surfaces are slightly abutted against the clamping body, and then the clamping block is rotated, so that the wall surfaces and the clamping body are in contact friction, a tangential state is formed between the wall surfaces and the clamping body, the clamping body is adjusted, the follow-up test is facilitated, and the clamping reliability is improved. 2. Through the rotation of one side clamp splice for two openings of one of them opening portion increase, thereby make things convenient for the clamping body to put into between two clamp splice, reduced two clamp splice along the radial distance of keeping away from each other of inner tube body, improve operating efficiency. Drawings FIG. 1 is a cross-sectional view of an embodiment I; FIG. 2 is a cross-sectional view taken along the M-M direction in FIG. 1; Fig. 3 is a second cross-sectional view of the embodiment. The device comprises an inner cylinder body 1, a sliding chute 11, an opening part I12, an external thread part 13, a rotary drum 2, an internal thread part 21, a sliding part 22, an adjusting block 3, a sliding seat 4, a clamping block 5, a connecting part 51, a bearing 511, a wall surface 52, a