CN221109939U

CN221109939U - Chuck tool

Info

Publication number: CN221109939U
Application number: CN202322853464.4U
Authority: CN
Inventors: 陆疆; 刘红建
Original assignee: Shanghai Weiji Machinery Equipment Co ltd
Current assignee: Shanghai Weiji Machinery Equipment Co ltd
Priority date: 2023-10-24
Filing date: 2023-10-24
Publication date: 2024-06-11
Anticipated expiration: 2033-10-24

Abstract

A chuck tool comprises a base. Compared with the prior art, the utility model has the advantages that: the workpiece is placed at the center of the chuck, the air pump utilizes the air inlet pipe to charge external air into the main air pipe, then air respectively enters the three fixed cylinders through the air dividing pipe, the piston in the fixed cylinders is driven by air pressure to approach the workpiece, so that the moving block drives the chuck to approach the workpiece, the workpiece is irregular, the chuck which is contacted with the workpiece first is arranged, the pressure sensor senses pressure after the chuck contacts with the workpiece, an electric signal is transmitted to the controller, the controller can control the electromagnetic valve corresponding to the chuck to be closed, no air is transmitted to the fixed cylinders, after all the chucks are contacted with the workpiece, all the electromagnetic valves are closed, the chuck can clamp the workpiece in the irregular shape, and the chuck is suitable for clamping workpieces in various shapes and has higher applicability.

Description

Chuck tool

Technical Field

The utility model relates to the technical field of chucks, in particular to a chuck tool.

Background

The chuck is a mechanical device on a machine tool for clamping a workpiece. The workpiece is clamped and positioned by the radial movement of the movable claws uniformly distributed on the chuck body. The chuck generally comprises a chuck body, movable claws and a claw driving mechanism.

The utility model discloses a through retrieving chinese patent with publication number CN205324769U, discloses a frock chuck repacking, including step motor, step motor installs on the lathe, step motor's main shaft passes through the left end of shaft coupling and worm to be connected, the right-hand member of worm passes through antifriction bearing and installs on the lathe, worm and worm wheel meshing, the worm wheel passes through the key connection transmission shaft, the front end of transmission shaft cup joints in driving bevel gear through the key, driving bevel gear meshes with three driven bevel gears, the inside axle sleeve that cup joints of driven bevel gear, the axle sleeve upper and lower both ends pass through antifriction bearing and install in the supporting box, the supporting box welds in the chuck inboard, the inside screw thread that sets up of axle sleeve, the axle sleeve cup joints the lead screw through the screw thread, the one end of lead screw passes the supporting box, the other end of lead screw passes the chuck outside and cup joints in the sleeve.

The prior art scheme has the following defects: synchronous movement of the lead screw can only clamp cylindrical workpieces, if the workpieces are irregularly shaped, part of the lead screw cannot contact with the workpieces, so that the clamping effect is poor, and the applicability is low.

Disclosure of utility model

In order to solve the above-mentioned shortcomings in the prior art, the present utility model provides a chuck tool to solve the problems set forth in the above-mentioned background art.

In order to achieve the aim of the utility model, the technical scheme adopted by the utility model is that the chuck tool comprises a base, wherein the upper side wall of the base is fixedly connected with a chuck, the upper side wall of the chuck is provided with three grooves distributed in an annular array, a moving block is connected in the grooves in a sliding manner, the upper side wall of the moving block is fixedly connected with a chuck, and the upper side wall of the base is also provided with a pushing assembly and a control assembly.

As an improvement: the pushing assembly comprises a supporting plate, a fixed cylinder, a piston rod and a reset spring, wherein three supporting plates distributed in an annular array are fixedly connected to the upper side wall of the base, the fixed cylinder is fixedly connected to the upper end of the supporting plate, the piston is fixedly connected to the inner portion of the fixed cylinder in a sealing mode, one end of the piston is fixedly connected with the piston rod, the other end of the piston rod extends out of the fixed cylinder and is fixedly connected with the moving block, the reset spring is sleeved on the outer side of the rod wall of the piston rod, one end of the reset spring is fixedly connected with the piston, and the other end of the reset spring is fixedly connected with one side inner wall of the fixed cylinder, close to the moving block.

As an improvement: the control assembly comprises a main air pipe, an air pump, an air inlet pipe, an air distribution pipe and an electromagnetic valve, wherein the main air pipe and the air pump are fixedly connected to the upper side wall of the base, the output end of the air pump is communicated with the main air pipe through the air inlet pipe, three air distribution pipes are communicated to the main air pipe, the other ends of the air distribution pipes are respectively communicated with three fixed cylinders, and the electromagnetic valve is arranged on the air distribution pipe.

As an improvement: a rubber protection pad is arranged on one side wall of the chuck, which is close to the middle position of the chuck, and a pressure sensor is arranged on the side wall.

As an improvement: guide rails are fixedly connected to the two side walls of the groove, and sliding grooves matched with the guide rails are formed in the two side walls of the moving block.

As an improvement: and a controller is arranged on the front side wall of the base.

Compared with the prior art, the utility model has the following beneficial effects:

The workpiece is placed at the center of the chuck, the air pump utilizes the air inlet pipe to charge external air into the main air pipe, then air respectively enters the three fixed cylinders through the air dividing pipe, the piston in the fixed cylinders is driven by air pressure to approach the workpiece, so that the moving block drives the chuck to approach the workpiece, the workpiece is irregular, the chuck which is contacted with the workpiece first is arranged, the pressure sensor senses pressure after the chuck contacts with the workpiece, an electric signal is transmitted to the controller, the controller can control the electromagnetic valve corresponding to the chuck to be closed, no air is transmitted to the fixed cylinders, after all the chucks are contacted with the workpiece, all the electromagnetic valves are closed, the chuck can clamp the workpiece in the irregular shape, and the chuck is suitable for clamping workpieces in various shapes and has higher applicability.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a chuck tool according to the present utility model;

FIG. 2 is a cross-sectional view of a fixture cartridge of a chuck tool according to the present utility model;

FIG. 3 is a schematic diagram of a groove structure of a chuck tool according to the present utility model;

As shown in the figure:

1. A base; 2. a chuck; 2.1, grooves; 2.2, a moving block; 2.3, clamping heads; 3. a pushing assembly; 4. a control assembly; 3.1, a supporting plate; 3.2, fixing the cylinder; 3.3, a piston; 3.4, a piston rod; 3.5, a return spring; 4.1, a total trachea; 4.2, an air pump; 4.3, an air inlet pipe; 4.4, a gas distribution pipe; 4.5, an electromagnetic valve; 2.31, rubber protective pad; 2.32, a pressure sensor; 2.21, guide rails; 2.11, a chute; 5. and a controller.

Detailed Description

In order to make the technical means, the creation characteristics and the effect of achieving the object of the present utility model easy to understand, the present utility model is further described below with reference to the specific embodiments.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both sides", "one side", "the other side", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1, a chuck tool comprises a base 1, wherein a chuck 2 is fixedly connected to the upper side wall of the base 1, three grooves 2.1 distributed in an annular array are formed in the upper side wall of the chuck 2, a moving block 2.2 is slidably connected in the grooves 2.1, a chuck 2.3 is fixedly connected to the upper side wall of the moving block 2.2, and a pushing assembly 3 and a control assembly 4 are further arranged on the upper side wall of the base 1.

Specifically, as shown in fig. 1 and 2, the chuck tool, the pushing component 3 includes a supporting plate 3.1, a fixed cylinder 3.2, a piston 3.3, a piston rod 3.4 and a return spring 3.5, three supporting plates 3.1 distributed in annular array are fixedly connected to the upper side wall of the base 1, the fixed cylinder 3.2 is fixedly connected to the upper end of the supporting plate 3.1, the piston 3.3 is hermetically connected to the inside of the fixed cylinder 3.2, one end of the piston 3.3 is fixedly connected with the piston rod 3.4, the other end of the piston rod 3.4 extends out of the fixed cylinder 3.2 and is fixedly connected with the movable block 2.2, a return spring 3.5 is sleeved on the outer side of the rod wall of the piston rod 3.4, one end of the return spring 3.5 is fixedly connected with the piston 3.3, the other end of the return spring is fixedly connected with the inner wall of one side of the fixed cylinder 3.2, which is close to the movable block 2, and the piston 3.3.4 is pushed to the workpiece by the air pressure, so that the movable block 2.2 drives the chuck 2.3.3 to the workpiece, the air vent 4 is close to the workpiece, the air vent 4.1 is opened, and the return spring 3.5 is enabled to return.

Specifically, as shown in fig. 1, the chuck tool, the control assembly 4 includes a main air pipe 4.1, an air pump 4.2, an air inlet pipe 4.3, an air distribution pipe 4.4 and an electromagnetic valve 4.5, the main air pipe 4.1 and the air pump 4.2 are fixedly connected to the upper side wall of the base 1, the output end of the air pump 4.2 is communicated with the main air pipe 4.1 through the air inlet pipe 4.3, three air distribution pipes 4.4 are communicated to the main air pipe 4.1, the other ends of the three air distribution pipes 4.4 are respectively communicated with three fixed cylinders 3.2, the electromagnetic valve 4.5 is installed on the air distribution pipes 4.4, the air pump 4.2 can charge the external air into the main air pipe 4.1 through the air distribution pipes 4.3, then the air respectively enters the three fixed cylinders 3.2, the purpose of pushing the piston 3.3 to move is achieved, the electromagnetic valve 4.5 can control the on-off of the air distribution pipe 4, and the chuck 2.3 can stop after contacting a workpiece.

Specifically, as shown in fig. 1, in the chuck tool, a rubber protection pad 2.31 is arranged on a side wall of the chuck 2.3, which is close to the middle position of the chuck 2, and a pressure sensor 2.32 is arranged on the side wall, wherein the pressure sensor 2.32 senses pressure after contacting a workpiece and transmits an electric signal to the controller 5, so that the controller 5 can perform the next control.

Specifically, as shown in fig. 3, in the chuck tool, guide rails 2.21 are fixedly connected to two side walls of the groove 2.1, and sliding grooves 2.11 matched with the guide rails 2.21 are formed in two side walls of the moving block 2.2, so that the moving block 2.2 is more stable in moving.

Specifically, as shown in fig. 1, in the chuck fixture, a controller 5 is installed on the front side wall of the base 1.

In the concrete implementation of the utility model, a workpiece is placed at the center of the chuck 2, the air pump 4.2 is started by the controller 5, the air pump 4.2 utilizes the air inlet pipe 4.3 to charge external air into the main air pipe 4.1, then the air respectively enters the three fixed cylinders 3.2 through the air dividing pipe 4.4, the piston 3.3 in the fixed cylinders 3.2 is pushed by the air pressure to approach the piston rod 3.4 to the workpiece, so that the movable block 2.2 drives the chuck 2.3 to approach the workpiece, the workpiece is irregular, the chuck 2.3 firstly contacted with the workpiece is provided, after the chuck 2.3 contacts with the workpiece, the pressure sensor 2.32 senses the pressure, an electric signal is transmitted to the controller 5, the controller 5 controls the electromagnetic valves 4.5 corresponding to the chuck 2.3 to be closed, and no longer enters the fixed cylinders 3.2, after all the other chucks 2.3 contact with the workpiece, all the electromagnetic valves 4.5 are closed, the air pump 4.2 stops working, and the chuck 2.3 clamps the irregular workpiece, thus the workpiece is applicable to clamping workpieces with various shapes.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. Chuck frock, including base (1), its characterized in that: the chuck is characterized in that a chuck (2) is fixedly connected to the upper side wall of the base (1), three grooves (2.1) distributed in an annular array are formed in the upper side wall of the chuck (2), a moving block (2.2) is connected in a sliding mode in the grooves (2.1), a chuck (2.3) is fixedly connected to the upper side wall of the moving block (2.2), and a pushing assembly (3) and a control assembly (4) are further arranged on the upper side wall of the base (1).

2. The chuck tooling of claim 1, wherein: the pushing assembly (3) comprises a supporting plate (3.1), a fixed cylinder (3.2), a piston (3.3), a piston rod (3.4) and a reset spring (3.5), wherein three supporting plates (3.1) distributed in an annular array are fixedly connected to the upper side wall of the base (1), the upper end of the supporting plate (3.1) is fixedly connected with the fixed cylinder (3.2), the piston (3.3) is fixedly connected to the inner side of the fixed cylinder (3.2) in a sealing manner, one end of the piston (3.3) is fixedly connected with the piston rod (3.4), the other end of the piston rod (3.4) extends out of the fixed cylinder (3.2) and is fixedly connected with a movable block (2.2), the outer side of the rod wall of the piston rod (3.4) is sleeved with the reset spring (3.5), one end of the reset spring (3.5) is fixedly connected with the piston (3.3) and the other end of the reset spring is fixedly connected with the inner wall of one side of the fixed cylinder (3.2) close to the movable block (2.2).

3. The chuck tooling of claim 1, wherein: the control assembly (4) comprises a main air pipe (4.1), an air pump (4.2), an air inlet pipe (4.3), an air distribution pipe (4.4) and an electromagnetic valve (4.5), wherein the main air pipe (4.1) and the air pump (4.2) are fixedly connected to the upper side wall of the base (1), the output end of the air pump (4.2) is communicated with the main air pipe (4.1) through the air inlet pipe (4.3), three air distribution pipes (4.4) are communicated to the main air pipe (4.1), and the other ends of the three air distribution pipes (4.4) are respectively communicated with three fixed cylinders (3.2), and the electromagnetic valve (4.5) is arranged on the air distribution pipe (4.4).

4. The chuck tooling of claim 1, wherein: a rubber protection pad (2.31) is arranged on one side wall of the chuck (2.3) close to the middle position of the chuck (2), and a pressure sensor (2.32) is arranged on the side wall.

5. The chuck tooling of claim 1, wherein: guide rails (2.21) are fixedly connected to the two side walls of the groove (2.1), and sliding grooves (2.11) matched with the guide rails (2.21) are formed in the two side walls of the moving block (2.2).

6. The chuck tooling of claim 1, wherein: a controller (5) is arranged on the front side wall of the base (1).