CN212240745U

CN212240745U - Machining clamp

Info

Publication number: CN212240745U
Application number: CN202020811373.8U
Authority: CN
Inventors: 杨光; 葛晓东
Original assignee: Baoding Changxin Machinery Manufacturing Co ltd
Current assignee: Baoding Changxin Machinery Manufacturing Co ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2020-12-29
Anticipated expiration: 2030-05-15

Abstract

The utility model discloses a machining clamp, which comprises a base, a hydraulic fixing mechanism for fixing a workpiece and a rotating mechanism for controlling the rotation of the workpiece; the hydraulic fixing mechanism comprises a workbench fixedly arranged on the base and more than 3 groups of workpiece fixing assemblies, and the workpiece fixing assemblies are fixedly arranged on the workbench; the rotating mechanism comprises a fixed sleeve for radially fixing a workpiece and a rotating assembly for controlling the fixed sleeve to rotate; the fixed sleeve radial direction evenly is provided with the fixed subassembly of hydraulic pressure more than 3, every group the fixed subassembly of hydraulic pressure include radial pneumatic cylinder and set up in fixed block on the radial pneumatic cylinder piston rod, the cylinder body of radial pneumatic cylinder fixed set up in inside the fixed sleeve. The utility model discloses a hydraulic pressure fixed establishment and slewing mechanism mutually support, and the machining work of working face about seamless connection's the completion work piece has reduced workman's intensity of labour, has improved the machining efficiency of work piece.

Description

Machining clamp

Technical Field

The utility model relates to a machine tooling technical field especially relates to a machine tooling anchor clamps.

Background

With the rapid development of modern machining and the rapid development of machining technology, a plurality of advanced machining technical methods are gradually emerged. However, in the existing machining process, after a worker finishes a working surface, the worker needs to manually turn over, so that the steps of frequently opening, stopping, manually screwing, loosening a chuck, correcting and the like are needed, the labor intensity of the worker is increased, a lot of machining auxiliary time is consumed, and the machining efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a machining fixture to solve the problem that above-mentioned prior art exists, mutually support through hydraulic pressure fixed establishment and slewing mechanism, the machining work of working face about seamless connection's the completion work piece.

In order to achieve the above object, the utility model provides a following scheme:

the utility model provides a machining clamp, including the base, be used for the hydraulic pressure fixed establishment and the control work piece pivoted slewing mechanism of fixed work piece.

The hydraulic fixing mechanism comprises a workbench fixedly arranged on the base and more than 3 groups of workpiece fixing assemblies, and the workpiece fixing assemblies are fixedly arranged on the workbench.

The rotating mechanism comprises a fixed sleeve for radially fixing a workpiece and a rotating assembly for controlling the fixed sleeve to rotate; the fixed sleeve radial direction evenly is provided with the fixed subassembly of hydraulic pressure more than 3, every group the fixed subassembly of hydraulic pressure include radial pneumatic cylinder and set up in fixed block on the radial pneumatic cylinder piston rod, the cylinder body of radial pneumatic cylinder fixed set up in inside the fixed sleeve.

Preferably, every group the fixed subassembly of work piece includes pneumatic cylinder and pressure head, the cylinder body of pneumatic cylinder fixed set up in the inside of workstation, the piston rod upper end of pneumatic cylinder and the lower terminal surface one side fixed connection of pressure head.

Preferably, the rotating assemblies are arranged in two groups in a bilateral symmetry manner, each group of rotating assemblies comprises an upright post fixedly arranged on the base, a lifting platform sleeved on the upright post, a lead screw for controlling the lifting platform to move up and down, a connecting rod for connecting the lifting platform and a fixed sleeve, and a second motor for driving the connecting rod to rotate, one end of the connecting rod is fixedly connected with the fixed sleeve, and the other end of the connecting rod is connected with the second motor; the lead screw is driven by a first motor.

Preferably, one end of the connecting rod is fixedly connected with the fixed sleeve through a key.

Preferably, the second motor is fixedly installed on the lifting platform and is connected with the connecting rod through a gear set.

Preferably, a protective cover is arranged on the outer side of the lifting assembly, and a channel for the connecting rod to move up and down is formed in one side of the protective cover.

Preferably, an oil path is formed in the fixing sleeve, and the oil path is communicated with all cylinder bodies of the radial hydraulic cylinder.

The utility model discloses a following technological effect: the workpiece fixing component is used for positioning and fixing the workpiece, when machining of a working surface is completed, the workpiece is radially fixed through the fixing sleeve, and then the lifting work of the fixing sleeve is completed through the lead screw; and the rotating assembly is used for completing the rotating work of the fixed sleeve, and then the workpiece is positioned and fixed through the workpiece fixing assembly again to complete the machining of the other working surface. The utility model discloses a hydraulic pressure fixed establishment and slewing mechanism mutually support, and the machining work of working face about seamless connection's the completion work piece has reduced workman's intensity of labour, has improved the machining efficiency of work piece.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the fixing sleeve and the workpiece according to the present invention;

FIG. 3 is a top view of the lift platform and connecting rod;

wherein, 1 is the work piece, 2 is the base, 3 is the workstation, 4 is fixed sleeve, 5 is radial pneumatic cylinder, 6 is the fixed block, 7 is the pneumatic cylinder, 8 is the pressure head, 9 is the stand, 10 is lift platform, 11 is the lead screw, 12 is the connecting rod, 13 is the second motor.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

Referring to fig. 1-3, the present invention provides a machining fixture, which comprises a base 2, a hydraulic fixing mechanism for fixing a workpiece 1, and a rotating mechanism for controlling the rotation of the workpiece 1.

The hydraulic fixing mechanism comprises a workbench 3 fixedly arranged on the base 2 and more than 3 groups of workpiece fixing assemblies, and the workpiece fixing assemblies are fixedly arranged on the workbench 3. Each group of workpiece fixing assemblies comprises a hydraulic cylinder 7 and a pressure head 8, the cylinder body of the hydraulic cylinder 7 is fixedly arranged inside the workbench 3, and the upper end of the piston rod of the hydraulic cylinder 7 is fixedly connected with one side of the lower end face of the pressure head 8. When the workpiece fixing component is used for fixing a workpiece, a piston rod of the hydraulic cylinder 7 extends out, the piston rod rotates, the pressure head 8 rotates, the lower end face of the pressure head is aligned with the workpiece, the hydraulic cylinder is contracted, the workpiece is clamped tightly, and the purpose of fixing is achieved.

The rotating mechanism comprises a fixed sleeve 4 for radially fixing the workpiece 1 and a rotating assembly for controlling the fixed sleeve 4 to rotate; the radial direction of fixed sleeve 4 evenly is provided with the fixed subassembly of hydraulic pressure more than 3, and the fixed subassembly of every group hydraulic pressure includes radial pneumatic cylinder 5 and sets up fixed block 6 on radial pneumatic cylinder 5 piston rod, and the cylinder body of radial pneumatic cylinder 5 is fixed to be set up inside fixed sleeve 4, and the inside oil circuit of having seted up of fixed sleeve 4, the oil circuit communicates all radial pneumatic cylinder 5's cylinder body. When the workpiece 1 needs to be fixed, oil is supplied to all the radial hydraulic cylinders 5 through oil passages, and the fixed block 6 on the telescopic rod extrudes the workpiece 1 to realize radial fixation of the workpiece.

The rotating assemblies are arranged in a bilateral symmetry mode, and each rotating assembly comprises an upright post 9 fixedly arranged on the base 2, a lifting platform 10 sleeved on the upright post 9, a lead screw 11 for controlling the lifting platform 10 to move up and down, a connecting rod 12 for connecting the lifting platform 10 with the fixed sleeve 4 and a second motor 13 for driving the connecting rod 12 to rotate. One end of the connecting rod 12 is fixedly connected with the fixed sleeve 4 through a key, and the other end of the connecting rod 12 is connected with the second motor 13; the second motor 13 is fixedly installed on the lifting platform 10 and connected with the connecting rod 12 through a gear set. The screw 11 is driven by a first motor. The first motor is controlled to drive the two lead screws to rotate, and the lifting platforms 10 positioned on the two lead screws synchronously move up and down, so that the fixed sleeve 4 fixed with the workpiece 1 moves up and down; when the fixed sleeve 4 reaches a designated position above the worktable 3, the second motor 13 is controlled to drive the connecting rod to rotate 180 degrees, thereby completing 180-degree rotation of the workpiece.

The outside of the lifting component is provided with a protective cover, and one side of the protective cover is provided with a channel for the connecting rod 12 to move up and down. The lifting component is protected.

The working process is as follows: the clamp is mainly applied to workpieces with plane upper and lower surfaces. Firstly, a workpiece is placed at a designated position, a piston rod of a hydraulic cylinder in the workpiece fixing assembly extends out, a pressure head 8 rotates to the inner side, the lower end face of the pressure head is aligned with the workpiece, and the hydraulic cylinder is contracted to enable the pressure head 8 to press down the workpiece 1 to fix the workpiece 1. The upper working surface of the workpiece 1 is then machined. After the upper surface is machined, the pressing head 8 is lifted, the workpiece fixing assembly is controlled to return, the first motor is controlled to drive the two screw rods to rotate, the lifting platform 10 located on the two screw rods 11 moves downwards to reach the designated position of the workpiece 1, oil is supplied to all the radial hydraulic cylinders 5 through oil ways, and the fixing block 6 on the telescopic rod extrudes the workpiece 1 to achieve radial fixing of the workpiece. And then, controlling the first motor to drive the two screw rods to rotate reversely, enabling the fixing sleeve 4 fixed with the workpiece 1 to move upwards, controlling the second motor 13 to drive the connecting rod to rotate 180 degrees when the fixing sleeve 4 reaches a specified position above the workbench 3, thereby completing the 180-degree rotation of the workpiece, then controlling the first motor to drive the fixing sleeve 4 to move downwards, recovering all oil in the radial hydraulic cylinders 5 through oil passages after the fixing sleeve 4 reaches the workbench 3, releasing the workpiece, and then fixing the workpiece for the second time through the workpiece fixing assembly, thereby completing the machining of the lower working surface of the workpiece 1 and completing the machining operation.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.

Claims

1. The utility model provides a machining anchor clamps which characterized in that: comprises a base (2), a hydraulic fixing mechanism for fixing a workpiece (1) and a rotating mechanism for controlling the workpiece (1) to rotate;

the hydraulic fixing mechanism comprises a workbench (3) fixedly arranged on the base (2) and more than 3 groups of workpiece fixing components, and the workpiece fixing components are fixedly arranged on the workbench (3);

the rotating mechanism comprises a fixed sleeve (4) for radially fixing the workpiece (1) and a rotating assembly for controlling the fixed sleeve (4) to rotate; the radial direction of fixed sleeve (4) evenly is provided with the fixed subassembly of hydraulic pressure more than 3, every group the fixed subassembly of hydraulic pressure include radial pneumatic cylinder (5) and set up in fixed block (6) on radial pneumatic cylinder (5) piston rod, the cylinder body of radial pneumatic cylinder (5) fixed set up in inside fixed sleeve (4).

2. A machining fixture according to claim 1, wherein: every group the fixed subassembly of work piece includes pneumatic cylinder (7) and pressure head (8), the cylinder body of pneumatic cylinder (7) is fixed set up in the inside of workstation (3), the lower terminal surface one side fixed connection of the piston rod upper end of pneumatic cylinder (7) and pressure head (8).

3. A machining fixture according to claim 1, wherein: the two groups of rotating assemblies are arranged in bilateral symmetry, each group of rotating assemblies comprises an upright post (9) fixedly arranged on the base (2), a lifting platform (10) sleeved on the upright post (9), a lead screw (11) for controlling the lifting platform (10) to move up and down, a connecting rod (12) for connecting the lifting platform (10) and the fixed sleeve (4) and a second motor (13) for driving the connecting rod (12) to rotate, one end of the connecting rod (12) is fixedly connected with the fixed sleeve (4), and the other end of the connecting rod (12) is connected with the second motor (13); the screw (11) is driven by a first motor.

4. A machining fixture according to claim 3, wherein: one end of the connecting rod (12) is fixedly connected with the fixed sleeve (4) through a key.

5. A machining fixture according to claim 3, wherein: the second motor (13) is fixedly arranged on the lifting platform (10) and is connected with the connecting rod (12) through a gear set.

6. A machining fixture according to claim 3, wherein: a protective cover is arranged on the outer side of the rotating assembly, and a channel for the connecting rod (12) to move up and down is formed in one side of the protective cover.

7. A machining fixture according to claim 1, wherein: and an oil way is formed in the fixed sleeve (4), and is communicated with all cylinder bodies of the radial hydraulic cylinder (5).