CN203621979U - Automatic clamping device for shaft workpieces - Google Patents

Abstract

The utility model discloses an automatic clamping device for a shaft workpiece, which comprises a base, a box body installed on the base, a driving motor installed on the box body, and a V-shaped clamping head for real-time monitoring of the workpiece. The pressure sensor of the pressing force, the drive motor is connected to the power input end of the transmission device through the belt, the power output end of the transmission device is connected to one end of the pusher, and the other end of the pusher is installed with a V Type compression head, the upper side of the base is fixed with a V-shaped pad used in conjunction with the V-type compression head through a baffle, and the pressure sensor and the drive motor are installed on the base through a data line Side control box connection. The utility model has the following characteristics: reasonable design, high degree of automation, simple and convenient operation, low labor intensity, wide application range, low production cost, and easy popularization and use.

Description

Automatic clamping device for shaft workpiece

technical field

The utility model belongs to the technical field of mechanical processing and relates to a clamping device, in particular to an automatic clamping device for shaft workpieces.

Background technique

At present, in the machining process of shaft workpieces, the most commonly used clamping tool is a three-jaw chuck because the outer contour of the shaft workpiece has a certain radian. The three-jaw chuck is composed of a chuck body, movable jaws and jaw driving mechanism. Under the guide part of the three claws on the three-jaw chuck, there are threads that mesh with the plane threads on the back of the bevel gear. When the small bevel gear is turned with a wrench through the square hole, the bevel gear rotates, and the plane threads on the back simultaneously Drive the three jaws to approach or withdraw from the center to clamp workpieces with different diameters. However, if the three-jaw chuck is used for a long time, the chuck will wear out, and the three jaws will also appear bell-mouthed, making the three jaws deviate from the chuck. In addition, when using the three-jaw chuck, the operator must manually clamp the workpiece, which cannot be done automatically. The operator has high labor intensity, low degree of automation, and low production efficiency.

Utility model content

The purpose of the utility model is to overcome the deficiencies in the above-mentioned prior art, and provide an automatic clamping device for shaft workpieces, which has reasonable design, high degree of automation, simple and convenient operation, low labor intensity, wide application range, and low production cost. Easy to promote and use.

In order to achieve the above purpose, the technical solution adopted by the utility model is: an automatic clamping device for shaft workpieces, including a base, a box installed on the base, a drive motor installed on the box, and a The pressure sensor for real-time monitoring of the pressing force of the V-shaped pressing head on the workpiece is characterized in that: the drive motor is connected to the power input end of the transmission device through a belt, and the power output end of the transmission device is connected to one end of the pusher. A V-shaped compression head is installed at the other end of the pusher passing through the support plate, and a V-shaped pad used in conjunction with the V-shaped compression head is fixedly installed on the upper side of the base through a baffle plate. The pressure sensor and The drive motors are all connected with the control box installed on the upper side of the base through data lines.

The above-mentioned automatic clamping device for shaft workpieces is characterized in that: the transmission device includes a worm, a worm wheel and a screw installed inside the box, and the worm wheel cooperates with the worm to form a worm gear transmission pair. The inside of the worm wheel is provided with threads that cooperate with the screw to form a thread pair.

The above-mentioned automatic clamping device for shaft workpieces is characterized in that the pressure sensor is installed between the screw rod and the pushing member.

The above-mentioned automatic clamping device for shaft workpieces is characterized in that: the pushing member is a sliding shaft, and the driving motor is a stepping motor.

The above-mentioned automatic clamping device for shaft workpieces is characterized in that a thrust bearing is arranged between the worm wheel and the box.

Compared with the prior art, the utility model has the following advantages:

(1) The design of the automatic clamping device for shaft workpieces is very reasonable. The control box can control the device to automatically complete the clamping and loosening operations. The degree of automation is high and the production efficiency is greatly improved;

(2) The automatic clamping device for shaft workpieces can automatically complete the clamping and loosening operations, the operation is simple and convenient, and the labor intensity of the operator is low.

(3) The automatic clamping device for shaft workpieces is not only applicable to the technical field of mechanical processing, but also applicable to other places where cylindrical objects need to be clamped, so its application range is very wide.

(4) Many parts of the automatic clamping device for shaft workpieces are very easy to produce and purchase, so its production cost is very low and it is easy to popularize and use.

Below by accompanying drawing and embodiment, the utility model is described in further detail.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model.

Fig. 2 is a structural schematic diagram of the transmission device of the present invention.

Explanation of reference signs:

1—base; 2—baffle; 3—V-shaped pad;

4—V-shaped pressing head; 5—support plate; 6—pushing piece;

7—pressure sensor; 8—box; 9—drive motor;

10—screw; 11—worm; 12—belt;

13—control box; 14—workpiece; 15—worm gear;

16—thrust bearing.

Detailed ways

An automatic clamping device for shaft workpieces as shown in Figure 1 includes a base 1, a box 8 mounted on the base 1, a drive motor 9 installed on the box 8, and a real-time monitoring V The pressure sensor 7 of the compression head 4 on the workpiece 14 pressing force, the drive motor 9 is connected with the power input end of the transmission device through the belt 12, the power output end of the transmission device is connected with one end of the pusher 6, and the After the pusher 6 passes through the support plate 5, a V-shaped compression head 4 is installed on the other end, and the upper side of the base 1 is fixed with a V-shaped spacer 3 used in conjunction with the V-shaped compression head 4 through the baffle plate 2 , the pressure sensor 7 and the drive motor 9 are connected to the control box 13 installed on the upper side of the base 1 through data lines, the pusher 6 is a slide shaft, and the drive motor 9 is a stepper motor.

As shown in Figure 2, the transmission device includes a worm 11, a worm wheel 15 and a screw 10 installed inside the casing 8, and the worm wheel 15 cooperates with the worm 11 to form a worm gear pair, and the worm wheel 15 A screw thread that cooperates with the screw rod 10 to form a thread pair is arranged inside, and a thrust bearing 16 is arranged between the worm wheel 15 and the box body 8 .

As shown in FIG. 1 , the pressure sensor 7 is installed between the screw rod 10 and the pushing member 6 .

The working process of the automatic clamping device for shaft workpieces of the utility model is as follows: first, the automatic clamping device for shaft workpieces is fixed and installed on the machine tool workbench through the base 1, and the operator places the workpiece 14 on the V of the V-shaped pad 3. In the groove, the control box 13 sends a control command to control the drive motor 9 to rotate in the forward direction, the drive motor 9 drives the worm 11 to rotate in the forward direction through the belt 12, the worm 11 drives the worm wheel 15 to rotate in the forward direction through the The auxiliary drives the pusher 6 to move forward, so that the V-shaped pressing head 4 presses the workpiece 14 . The pressure sensor 7 monitors the pressing force in real time, and transmits the pressing force signal to the control box 13. When the pressing force reaches the set value, the control box 13 sends a control command to control the drive motor 9 to stop rotating. When the set value required for processing the workpiece 14 is reached, the control box 13 sends a control command to control the drive motor 9 to rotate in reverse, so that the V-shaped pressing head 4 releases the workpiece 14, and the operator can take the workpiece 14 out.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any simple modifications, changes and equivalent structural transformations made to the above embodiments according to the technical essence of the present utility model still belong to Within the scope of protection of the technical solution of the utility model.

Claims (5)

1. An automatic clamping device for shaft workpieces, comprising a base (1), a box (8) installed on the base (1), and a drive motor (9) installed on the box (8) And a pressure sensor (7) for real-time monitoring of the pressing force of the V-shaped pressing head (4) on the workpiece (14), characterized in that: the driving motor (9) is input through the power input of the belt (12) and the transmission device The power output end of the transmission device is connected to one end of the pusher (6), and the other end of the pusher (6) is installed with a V-shaped compression head (4) after passing through the support plate (5). The upper side of the base (1) is fixedly installed with the V-shaped pad (3) used in conjunction with the V-shaped compression head (4) through the baffle (2), the pressure sensor (7) and the drive motor ( 9) are connected with the control box (13) installed on the upper side of the base (1) through the data cable. the 2. The automatic clamping device for shaft workpieces according to claim 1, characterized in that: the transmission device includes a worm (11), a worm wheel (15) and a screw (10) installed inside the box (8) ), the worm wheel (15) cooperates with the worm (11) to form a worm gear transmission pair, and the worm wheel (15) is internally provided with threads that cooperate with the screw (10) to form a thread pair. the 3. The automatic clamping device for shaft workpieces according to claim 2, characterized in that: the pressure sensor (7) is installed between the screw (10) and the pusher (6). the 4. The automatic clamping device for shaft workpieces according to claim 1, characterized in that: the pushing member (6) is a sliding shaft, and the driving motor (9) is a stepping motor. the 5. The automatic clamping device for shaft workpieces according to claim 2, characterized in that: a thrust bearing (16) is arranged between the worm wheel (15) and the box (8). the

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