CN211277525U

CN211277525U - Machine tool clamp

Info

Publication number: CN211277525U
Application number: CN201922301397.9U
Authority: CN
Inventors: 张海香; 邹海丰
Original assignee: Jiangsu Boneng Machine Tool Manufacturing Co ltd
Current assignee: Jiangsu Boneng Machine Tool Manufacturing Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-08-18
Anticipated expiration: 2029-12-19

Abstract

The utility model discloses a machine tool fixture, which comprises a mounting base, the left side fixed mounting of mount pad has the anchor clamps support, rotate on the anchor clamps support and install L shape rotating turret, the left end fixedly connected with centre gripping briquetting of L shape rotating turret, the downside of centre gripping briquetting is equipped with movable mounting's centre gripping bottom plate on the anchor clamps support, and the centre gripping is fixed with the work piece between centre gripping briquetting and the centre gripping bottom plate, the bottom of centre gripping bottom plate is equipped with buffer gear, and the bottom of centre gripping bottom plate passes through buffer gear and installs on the anchor clamps support, the fixed articulated seat of cylinder that is provided with in top of mount pad. The utility model provides a lathe fixture has avoided the trouble of manual clamping work piece, can make the clamping operation labour saving and time saving of work piece, and work efficiency is high, simple structure, and convenient operation has good buffering effect moreover to prevent that the work piece from because the clamping-force is too big and damage, ensured the quality of work piece in the centre gripping process.

Description

Machine tool clamp

Technical Field

The utility model relates to a machine tool machining technical field especially relates to a machine tool fixture.

Background

When machining a workpiece on a machine tool, it is necessary that the workpiece occupies a certain correct position relative to the machine tool before it is clamped, a process known as positioning. The workpiece is not necessarily subjected to external forces after positioning, and must be pressed in order to maintain the workpiece in its correct position during the machining process, which is called clamping. The clamping process of the workpiece is the integration of the positioning process and the clamping process.

A machine tool holder is a device for holding a workpiece on a machine tool, and serves to hold the workpiece in a correct position relative to the machine tool or tool, and to maintain this position during machining. The machine tool clamp is specially designed for a certain part production process.

At present, in machine tool machining production, a pressing block is matched with a screw in some traditional workpiece clamping modes, and an operator needs to manually screw the screw to clamp the workpiece. Although the clamping mode finishes clamping the workpiece, manual clamping wastes time and labor, the loading and unloading period is long, the working efficiency is low, and part of the workpiece is easy to clamp and damage. To this end, we provide a machine tool fixture.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a machine tool clamp.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a machine tool fixture comprises an installation seat, wherein a fixture support is fixedly installed on the left side of the installation seat, an L-shaped rotating frame is rotatably installed on the fixture support, a clamping pressing block is fixedly connected to the left end of the L-shaped rotating frame, a clamping bottom plate movably installed on the fixture support is arranged on the lower side of the clamping pressing block, a workpiece is clamped and fixed between the clamping pressing block and the clamping bottom plate, a buffer mechanism is arranged at the bottom of the clamping bottom plate, the bottom of the clamping bottom plate is installed on the fixture support through the buffer mechanism, a cylinder hinge seat is fixedly arranged at the top of the installation seat, a clamping cylinder is rotatably hinged to the left side of the cylinder hinge seat, and a piston rod of the clamping cylinder is rotatably hinged to the top of the L-;

buffer gear includes fixed connection in the buffering movable block of centre gripping bottom plate bottom and locates the buffering movable groove on the anchor clamps support, and the bottom activity of buffering movable block locates in the buffering movable groove, fixedly connected with spring on the bottom inner wall of buffering movable groove, the top fixed connection of spring is in the bottom of buffering movable block.

Preferably, the bottom side of the clamping pressing block is provided with a first buffer rubber mat, and the top side of the clamping bottom plate is provided with a second buffer rubber mat.

Preferably, the top of the clamp bracket is fixedly provided with a limiting stopper, the limiting stopper is positioned on the right side of the clamping base plate, and the limiting stopper is in limiting fit with the workpiece.

Preferably, the bottom of the two sides of the buffering movable block in the buffering movable groove is provided with a sliding block, the inner walls of the two sides of the buffering movable groove are provided with sliding grooves, and the sliding blocks are connected with the sliding grooves in a sliding mode.

Preferably, a hinged joint is fixedly connected to a piston rod of the clamping cylinder, and the piston rod of the clamping cylinder is rotatably hinged to the top of the L-shaped rotating frame through the hinged joint.

Preferably, one side of the clamping cylinder, which is close to the cylinder hinge base, is fixedly connected with a rotating arm, and the clamping cylinder is rotatably hinged on the cylinder hinge base through the rotating arm.

The utility model has the advantages that:

1. the utility model discloses in, when the centre gripping was used, arrange the work piece in on the centre gripping bottom plate to carry on spacingly through the locating part to the work piece, then through the promotion of stretching out of die clamping cylinder piston rod, and then promote L shape rotating frame and rotate on anchor clamps support, and make the centre gripping briquetting compress tightly the work piece downwards, thereby fix the work piece centre gripping between centre gripping briquetting and centre gripping bottom plate, and then can make the clamping operation convenient and fast of work piece, labour saving and time saving, work efficiency is high.

2. In the utility model, the first buffer rubber pad is arranged at the bottom side of the clamping pressing block and the second buffer rubber pad is arranged at the top side of the clamping bottom plate, so that the buffering function can be realized; the buffering movable block and the spring are further arranged, the compression buffering deformation of the spring can further play a buffering effect, so that the workpiece is prevented from being damaged due to overlarge clamping force, the quality of the workpiece in the clamping process is ensured, and the elastic reaction force after the spring is compressed can further play a clamping effect.

To sum up, the utility model provides a lathe anchor clamps has avoided the trouble of manual clamping work piece, can make the clamping operation convenient and fast of work piece, labour saving and time saving, and work efficiency is high, simple structure, and convenient operation has good buffering effect moreover to prevent that the work piece from because the clamping-force is too big and damage, ensured the quality of work piece in clamping process.

Drawings

Fig. 1 is a schematic structural diagram of a machine tool fixture according to the present invention;

FIG. 2 is a schematic view of the buffering connection structure between the clamping base plate and the clamp bracket according to the present invention;

fig. 3 is a schematic diagram of a state of the machine tool clamp according to the present invention when the machine tool clamp does not clamp a workpiece.

In the figure: the device comprises a mounting seat 1, a clamp support 2, a 3L-shaped rotating frame, a clamping pressing block 4, a first buffering rubber cushion 401, a clamping bottom plate 5, a second buffering rubber cushion 501, a buffering movable block 6, a buffering movable groove 7, a limiting blocking piece 8, a workpiece 9, a clamping cylinder 10, a hinge joint 11, a rotating arm 12, a cylinder hinge seat 13, a spring 14, a sliding block 15 and a sliding groove 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a machine tool fixture comprises a mounting seat 1, wherein a fixture support 2 is fixedly mounted on the left side of the mounting seat 1, an L-shaped rotating frame 3 is rotatably mounted on the fixture support 2, a clamping pressing block 4 is fixedly connected to the left end of the L-shaped rotating frame 3, a clamping bottom plate 5 movably mounted on the fixture support 2 is arranged on the lower side of the clamping pressing block 4, a workpiece 9 is clamped and fixed between the clamping pressing block 4 and the clamping bottom plate 5, a buffer mechanism is arranged at the bottom of the clamping bottom plate 5, the bottom of the clamping bottom plate 5 is mounted on the fixture support 2 through the buffer mechanism, a cylinder hinge seat 13 is fixedly arranged at the top of the mounting seat 1, a clamping cylinder 10 is rotatably hinged to the left side of the cylinder hinge seat 13, and a piston rod of the clamping cylinder 10 is rotatably hinged to the top of the;

the buffer mechanism comprises a buffer movable block 6 fixedly connected to the bottom of the clamping bottom plate 5 and a buffer movable groove 7 arranged on the clamp bracket 2, the bottom of the buffer movable block 6 is movably arranged in the buffer movable groove 7, a spring 14 is fixedly connected to the inner wall of the bottom of the buffer movable groove 7, and the top end of the spring 14 is fixedly connected to the bottom of the buffer movable block 6; the utility model provides a lathe fixture has avoided the trouble of manual clamping work piece, can make the clamping operation labour saving and time saving of work piece, and work efficiency is high, simple structure, and convenient operation has good buffering effect moreover to prevent that the work piece from because the clamping-force is too big and damage, ensured the quality of work piece in the centre gripping process.

Further, a first buffer rubber pad 401 is arranged on the bottom side of the clamping pressing block 4, and a second buffer rubber pad 501 is arranged on the top side of the clamping bottom plate 5.

Furthermore, a limiting stopper 8 is fixedly arranged at the top of the clamp bracket 2, the limiting stopper 8 is positioned at the right side of the clamping base plate 5, and the limiting stopper 8 is in limiting fit with the workpiece 9.

Further, the bottom parts of the two sides of the buffer movable block 6 in the buffer movable groove 7 are provided with slide blocks 15, the inner walls of the two sides of the buffer movable groove 7 are provided with slide grooves 16, and the slide blocks 15 are connected with the slide grooves 16 in a sliding manner.

Further, a hinged joint 11 is fixedly connected to a piston rod of the clamping cylinder 10, and the piston rod of the clamping cylinder 10 is rotatably hinged to the top of the L-shaped rotating frame 3 through the hinged joint 11.

Furthermore, one side of the clamping cylinder 10 close to the cylinder hinge base 13 is fixedly connected with a rotating arm 12, and the clamping cylinder 10 is rotatably hinged on the cylinder hinge base 13 through the rotating arm 12.

In the utility model, as shown in fig. 3, the state of the machine tool clamp before clamping the workpiece is not shown, when the machine tool clamp is used for clamping and fixing, the workpiece 9 is placed on the clamping bottom plate 5, the workpiece 9 is limited by the limiting part 8, and then the L-shaped rotating frame 3 is pushed to rotate on the clamp bracket 2 by the extending and pushing of the piston rod of the clamping cylinder 10, so that the clamping pressing block 4 presses the workpiece 9 downwards, and the workpiece 9 is clamped and fixed between the clamping pressing block 4 and the clamping bottom plate 5 (as shown in fig. 1); and through set up first buffering cushion 401 in the bottom side of centre gripping briquetting 4 and set up second buffering cushion 501 in the top side of centre gripping bottom plate 5, can play the effect of buffering like this, buffer movable block 6 and spring 14 have still been set up simultaneously, buffering deformation through the compression of spring 14, the effect of buffering can further be played, in order to prevent that work piece 9 from because the clamping-force is too big and damaging, the quality of work piece 9 in the centre gripping process has been ensured, and the elasticity reaction after the spring 14 compression can further play tight effect of clamp. Finally, the utility model provides a lathe anchor clamps has avoided the trouble of manual clamping work piece, can make the clamping operation labour saving and time saving of work piece, and work efficiency is high, simple structure, and convenient operation has good buffering effect moreover to prevent that the work piece from because the clamping-force is too big and damage, ensured the quality of work piece in the clamping process.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A machine tool fixture comprises a mounting seat (1) and is characterized in that a fixture support (2) is fixedly mounted on the left side of the mounting seat (1), an L-shaped rotating frame (3) is rotatably mounted on the fixture support (2), a clamping pressing block (4) is fixedly connected to the left end of the L-shaped rotating frame (3), a clamping bottom plate (5) movably mounted on the fixture support (2) is arranged on the lower side of the clamping pressing block (4), a workpiece (9) is fixedly clamped between the clamping pressing block (4) and the clamping bottom plate (5), a buffer mechanism is arranged at the bottom of the clamping bottom plate (5), the bottom of the clamping bottom plate (5) is mounted on the fixture support (2) through the buffer mechanism, a cylinder hinged seat (13) is fixedly arranged at the top of the mounting seat (1), and a clamping cylinder (10) is rotatably hinged to the left side of the cylinder hinged seat (13), a piston rod of the clamping cylinder (10) is rotatably hinged with the top of the L-shaped rotating frame (3);

buffer gear includes fixed connection in the buffering movable block (6) of centre gripping bottom plate (5) bottom and locates buffering movable groove (7) on anchor clamps support (2), and the bottom activity of buffering movable block (6) locates in buffering movable groove (7), fixedly connected with spring (14) on the bottom inner wall of buffering movable groove (7), the top fixed connection of spring (14) is in the bottom of buffering movable block (6).

2. A machine tool clamp according to claim 1, characterized in that the clamping press block (4) is provided with a first cushion rubber (401) on its bottom side and a second cushion rubber (501) on its top side on the clamping base plate (5).

3. A machine tool fixture according to claim 1, characterized in that a limit stopper (8) is fixedly arranged on the top of the fixture support (2), the limit stopper (8) is positioned on the right side of the clamping base plate (5), and the limit stopper (8) is in limit fit with the workpiece (9).

4. The machine tool fixture according to claim 1, wherein sliding blocks (15) are arranged at the bottoms of two sides of the buffer movable block (6) in the buffer movable groove (7), sliding grooves (16) are arranged on the inner walls of two sides of the buffer movable groove (7), and the sliding blocks (15) are slidably connected with the sliding grooves (16).

5. A machine tool fixture according to claim 1, characterized in that the piston rod of the clamping cylinder (10) is fixedly connected with a hinge joint (11), and the piston rod of the clamping cylinder (10) is rotatably hinged with the top of the L-shaped rotating frame (3) through the hinge joint (11).

6. The machine tool fixture according to claim 1, characterized in that a rotating arm (12) is fixedly connected to one side of the clamping cylinder (10) close to the cylinder hinge base (13), and the clamping cylinder (10) is rotatably hinged on the cylinder hinge base (13) through the rotating arm (12).