CN219189953U

CN219189953U - Centering fixture

Info

Publication number: CN219189953U
Application number: CN202320116539.8U
Authority: CN
Inventors: 马仁国; 管洪维; 刑海成; 尹福德
Original assignee: Dalian Hengxin Machinery Co ltd
Current assignee: Dalian Hengxin Machinery Co ltd
Priority date: 2023-02-06
Filing date: 2023-02-06
Publication date: 2023-06-16
Anticipated expiration: 2033-02-06

Abstract

The utility model discloses a centering fixture, which comprises two opposite clamping plates, wherein the clamping plates are fixed on a mounting block, the mounting block is arranged on a mounting frame, a base is arranged below the mounting frame, a rotating shaft is arranged on the base, the side surface of the rotating shaft is fixedly connected with the bottom end of the mounting frame, two ends of the rotating shaft respectively penetrate through sliding holes in supporting plates on two sides of the base to extend out of the supporting plates, one end of the rotating shaft is fixedly connected with the end part of a rotating rocker on the outer side of the top end of the supporting plate, and the bottom end of the supporting plate is fixed on the base.

Description

Centering fixture

Technical Field

The utility model belongs to the technical field of pipe machining equipment, and particularly relates to a centering clamp.

Background

In the mechanical manufacturing process, a fixture is used for fixing a mechanical part to be processed in a correct position, so that the metal part can be processed conveniently.

The existing self-centering clamps (grant publication numbers CN216829691U and CN 217194913U) can quickly realize the purposes of switching between large and small objects, loosening or clamping cylindrical workpieces, and can rotate, but the clamps cannot be adjusted angularly. The clip has the advantages that the angle of the clip is adjusted according to the angle of the object, and great convenience is brought if the angle can be adjusted.

Disclosure of Invention

In order to enable the clamp to have the function of angle adjustment, the utility model provides a centering clamp.

The technical scheme who adopts in this practicality is as follows:

the centering fixture comprises two opposite clamping plates, one side of each clamping plate is fixed on the corresponding mounting block, the bottom of each mounting block is fixedly arranged on the corresponding sliding block, the bottom of each sliding block is provided with a track, the right sliding block is in sliding fit with the corresponding track, and the left sliding block is fixedly connected with the corresponding track; the track is fixed on the upper part of the mounting frame, the mounting frame is fixed on the outer wall of the upper part of the rotating shaft, the base is arranged below the rotating shaft, the supporting plates are respectively fixed at two ends of the base, and the supporting plates are arranged in parallel and perpendicular to the base; two ends of the rotating shaft respectively penetrate through the supporting plate and extend out of the outer wall of the supporting plate, and two ends of the rotating shaft are respectively and rotatably clamped with the supporting plate; one end of the rotating shaft is fixedly connected with the end part of the rotating rocker outside the supporting plate.

The left side installation block is fixed on the upper part of the sliding block, and the bottom end of the right side installation block is fixed on the sliding block in the middle of the track; the upper portion of the other end of the track is fixed with a sliding block, the sliding block is provided with a driving block, the left end portion of the driving rod is fixedly connected with the side wall of the mounting block above the middle portion of the sliding rail, the driving block is provided with a through groove, the driving rod penetrates through the through groove on the upper portion of the driving block, the driving rod is in sliding fit with the through groove on the driving block, the lower surface of the driving rod is provided with teeth, the teeth of the driving rod are meshed with a driving gear, the driving gear is arranged in the driving block, and the driving gear is rotationally connected in the driving block.

The middle part of the driving gear is rotationally connected with the driving block through a connecting shaft, the connecting shaft penetrates through the centers of the driving block and the driving gear, the connecting shaft is rotationally connected with the driving block, the connecting shaft is fixedly connected with the driving gear, and the end part of the connecting shaft is fixedly connected with one end of the clamping rocker.

A positioning jackscrew is arranged above the driving block, the positioning jackscrew is in threaded fit with the driving block, the bottom of the positioning jackscrew is abutted against the upper part of the driving rod, and a screwing rod is arranged at the top end of the positioning jackscrew.

The upper parts of the support plates are round, tooth grooves are formed in the same side of the upper parts of the two support plates, a first positioning block is fixed at the left end of the left end sliding block, the tooth grooves are matched with the first positioning block, and the tooth grooves in the right support plate are clamped with the second positioning block.

A spring is arranged between the right side supporting plate and the shaft sleeve, the shaft sleeve is fixed on the outer wall of the rotating shaft, one end of the spring is fixedly connected with the shaft sleeve, and the other end of the spring is fixedly connected with the inner side wall of the supporting plate.

The beneficial effects are that: the rotary rocker can drive the rotary shaft to rotate, the rotary rocker is loosened after the rotary shaft rotates to a certain angle, the rotary rocker moves towards the direction of the supporting plate under the action of the reset elastic force of the spring, the first positioning block and the second positioning block are clamped in the tooth grooves, and the rotary shaft is fixed. The rotation of the rotating shaft drives the clamping plate to rotate, so that the fixing direction and angle of the pipe are changed, the pipe can be converted between vertical fixing and horizontal fixing, and the clamp can be rotated for a certain angle within the range of 0 to 180 degrees.

Drawings

FIG. 1 is a schematic perspective view of the first embodiment of the present utility model;

fig. 2 is a schematic perspective view of a second embodiment of the present utility model.

1 base, 2 backup pad, 3 tooth's socket, 4 rotation axis, 5 rotatory rockers, 60 locating piece one, 61, locating piece two, 7 mounting bracket, 8 slider, 9 actuating levers, 10 actuating blocks, 11 location jackscrews, 12 screw rods, 13 installation piece, 14 splint, 15 actuating gears, 16 springs, 17 connecting axle, 18 centre gripping rockers, axle sleeve 19, track 20.

Detailed Description

As shown in fig. 1-2: the distance between the sliding blocks 8 on the sliding rail can be adjusted, so that the original distance of the mounting block 13 is adjusted, when the pipe is positioned, the sliding blocks 8 at the two ends of the clamped sliding rail are fixed at the end parts of the sliding rail, the driving rod 9 comprises teeth at the lower part of the driving rod, the teeth at the lower part of the driving rod 9 are matched with the driving gear 15, the driving gear 15 can be driven to rotate by rotating the clamping rocker 18, the driving gear 15 rotates to drive the clamping plate 14 to move relative to the other clamping plate 14, and the moving clamping plate 14 moves towards the fixed clamping plate 14 to fix the pipe placed between the two clamping plates 14; the opposite side surfaces of the two clamping plates 14 are provided with arc-shaped grooves along with the outer wall of the pipe, and the pipe is clamped through the annular grooves; the positioning jackscrew 11 is screwed by the screwing rod 12, the end part of the positioning jackscrew 11 is tightly matched with the surface of the driving rod 9, the driving rod 9 is fixed on the driving block 10, and the pipe is fixed above the mounting frame 7 by the two clamping plates 14.

The mounting frame 7, the mounting block 13, the driving block 10 and the clamping plate 14 can rotate along with the rotating shaft 4, the pulling 5 is carried out, the spring 16 is pulled, the second positioning block 61 and the first positioning block 60 are respectively separated from the tooth slot 3, at the moment, the rotating rocker 5 can drive the rotating shaft 4 to rotate, the rotating rocker 5 is loosened after the rotating shaft 4 rotates to a certain angle, under the action of reset elasticity of the spring 16, the rotating rocker 5 moves towards the direction of the supporting plate 2, the first positioning block 60 and the second positioning block 61 are clamped in the tooth slot 3, and the rotating shaft 4 is fixed. The rotation shaft 4 rotates to drive the clamping plate 14 to rotate, so that the fixing direction and angle of the pipe are changed, the pipe can be converted between vertical fixing and horizontal fixing, and the clamping plate 14 can be rotated for a certain angle within the range of 0 to 180 degrees.

The application process of the utility model comprises the following steps: the pipe is placed between the two clamping plates 14 and is opposite to the arc-shaped groove, the positioning jackscrew 11 is screwed upwards to enable the driving rod 9 to slide on the top of the driving block 10, the rotary clamping rocker 18 rotates the driving gear 15 to rotate, so that the driving rod 9 is driven to move towards the pipe, and the pipe is clamped between the two clamping plates 14; the rotary rocker 5 is pulled to the outer side of the supporting plate 2 to enable the second positioning block 61 and the first positioning block 60 to move out of the tooth groove 3, the rotary shaft 4 is rotated to adjust the angle position of the pipe, and the rotary shaft 4 is pushed to the inner side of the supporting plate 2 after adjustment, so that the second positioning block 61 and the first positioning block 60 are clamped in the arc-shaped tooth groove 3.

In the utility model, the rotation shaft 4 can be rotated to adjust the clamping sites of the two clamping plates 14, and then the pipe is clamped and fixed, and the selection is carried out according to actual production.

Claims

1. The centering clamp is characterized by comprising two opposite clamping plates (14), wherein one side of each clamping plate (14) is fixed on a mounting block (13), the bottom of each mounting block (13) is fixedly arranged on a sliding block (8), a track (20) is arranged at the bottom of each sliding block (8), the right sliding block (8) is in sliding fit with the track (20), and the left sliding block (8) is fixedly connected with the track (20); the track (20) is fixed on the upper part of the mounting frame (7), the mounting frame (7) is fixed on the outer wall of the upper part of the rotating shaft (4), the base (1) is arranged below the rotating shaft (4), the supporting plates (2) are respectively fixed at two ends of the base (1), and the supporting plates (2) are arranged in parallel and perpendicular to the base (1); two ends of the rotating shaft (4) respectively penetrate through the supporting plate (2) and extend out of the outer wall of the supporting plate (2), and two ends of the rotating shaft (4) are respectively clamped with the supporting plate (2) in a rotating way; one end of the rotating shaft (4) is fixedly connected with the end part of the rotating rocker (5) at the outer side of the supporting plate (2).

2. The centering fixture according to claim 1, wherein the left side mounting block (13) is fixed on the upper part of the sliding block (8), and the bottom end of the right side mounting block (13) is fixed on the sliding block (8) in the middle of the track (20); the other end upper portion of track (20) is fixed with slider (8), be provided with driving block (10) on slider (8), the left end portion of actuating lever (9) and be located the installation piece (13) lateral wall fixed connection of slide rail middle part top, have logical groove on driving block (10), actuating lever (9) run through logical groove in driving block (10) upper portion, logical groove sliding fit on actuating lever (9) and driving block (10), the lower surface of actuating lever (9) is provided with the tooth, the tooth and the meshing of driving gear (15) of actuating lever (9), the inside of driving block (10) has driving gear (15), inside rotation connection of driving gear (15) at driving block (10).

3. The centering fixture according to claim 2, characterized in that the middle part of the driving gear (15) is rotationally connected with the driving block (10) through a connecting shaft (17), the connecting shaft (17) penetrates through the centers of the driving block (10) and the driving gear (15), the connecting shaft (17) is rotationally connected with the driving block (10), the connecting shaft (17) is fixedly connected with the driving gear (15), and the end part of the connecting shaft (17) is fixedly connected with one end of the clamping rocker (18).

4. A centering fixture according to claim 3, characterized in that a positioning jackscrew (11) is arranged above the driving block (10), the positioning jackscrew (11) is in threaded fit with the driving block (10), the bottom of the positioning jackscrew (11) is abutted against the upper part of the driving rod (9), and a screwing rod (12) is arranged at the top end of the positioning jackscrew (11).

5. The centering fixture according to claim 1, wherein the upper parts of the support plates (2) are circular, tooth grooves (3) are formed in the same side of the upper parts of the two support plates (2), a first positioning block (60) is fixed at the left end of the left end sliding block (8), the tooth grooves (3) are matched with the first positioning block (60), and the tooth grooves (3) on the right support plate (2) are clamped with a second positioning block (61).

6. The centering fixture according to claim 1, characterized in that a spring (16) is arranged between the right support plate (2) and the shaft sleeve (19), the shaft sleeve (19) is fixed on the outer wall of the rotating shaft (4), one end of the spring (16) is fixedly connected with the shaft sleeve (19), and the other end of the spring (16) is fixedly connected with the inner side wall of the support plate (2).