CN218696367U

CN218696367U - Pneumatic clamp for machining motor shaft

Info

Publication number: CN218696367U
Application number: CN202222997964.0U
Authority: CN
Inventors: 刘晓生; 杨丰恺
Original assignee: Dandong Shanchuan Electrical Engineering Co ltd
Current assignee: Dandong Shanchuan Electrical Engineering Co ltd
Priority date: 2022-11-10
Filing date: 2022-11-10
Publication date: 2023-03-24
Anticipated expiration: 2032-11-10

Abstract

The utility model discloses a pneumatic fixture for motor shaft processing, support as an organic whole with the base, cooperate by motor shaft positioner and locking slider and carry out the location locking of motor shaft, wherein, locking slider is the wedge, the inclined plane of locking slider cooperates through slider and spout with the inclined plane of voussoir, and the voussoir is driven by the piston rod in the cylinder, when controlling the work of cylinder through operating cylinder control valve, drive the voussoir and move, can drive locking slider and carry out and be close to/keep away from the slip along the relative motor shaft positioner of base, accomplish the locking and the uninstallation function of motor shaft; the pneumatic clamp has the advantages of simple structure, reasonable design and convenience in use, and is more stable in positioning of the motor shaft.

Description

Pneumatic clamp for machining motor shaft

Technical Field

The utility model discloses a technical field of anchor clamps for machining especially relates to a pneumatic fixture for motor shaft processing.

Background

In order to facilitate the machining of the motor shaft, the position of the motor shaft needs to be fixed by using a clamp before machining every time, and if the motor shaft deviates in position in the machining process, the machining precision is affected, and sometimes even waste parts can be caused.

In the past, when clamping a motor shaft, a V-shaped positioning iron is mainly used, a clamping piece is arranged at the end part of the V-shaped positioning iron, two bolts are arranged on the clamping piece and screwed at the end part of the V-shaped positioning iron, and each time the motor shaft is positioned, the motor shaft needs to be placed in a V-shaped groove of the V-shaped positioning iron, and then the bolts on the clamping piece are screwed to press the clamping piece against the motor shaft, so that the locking of the motor shaft is realized. The clamping mode has the advantages that the bolts are required to be manually screwed when being clamped every time, so that the working efficiency is low, and the locking mode for fixing the bolts can loosen along with continuous vibration in the machining process of the motor shaft, so that the problem of unstable positioning exists, and the machining quality is influenced.

Therefore, how to develop a novel clamp for machining a motor shaft to solve the above problems is a problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a pneumatic fixture is used in motor shaft processing to solve positioning fixture in the past and need the manual work to revolve to twist the nut and press from both sides tightly, not only work efficiency is low, produces not hard up in the course of working moreover easily, influences processingquality's problem.

The utility model provides a technical scheme specifically does: a pneumatic clamp for motor shaft machining, the clamp comprising: the device comprises a base, a motor shaft positioning device, a cylinder, a locking slide block, a wedge block and a cylinder control valve;

the base includes: the positioning device comprises two fixing blocks and a positioning plate, wherein the two fixing blocks are arranged at intervals and are used for being fixedly connected with an external processing machine tool, the positioning plate is erected above the two fixing blocks, the bottom edges of the positioning plate are respectively fixedly connected with the upper surfaces of the two fixing blocks, and through holes penetrating through the two sides are formed in the positioning plate;

the motor shaft positioning device is positioned on one side of the positioning plate and is fixedly connected with the side wall of the positioning plate, and a V-shaped limiting groove penetrating through the upper end and the lower end is formed in the side wall of one side of the motor shaft positioning device, which is close to the through hole in the positioning plate, along the height direction;

the cylinder is positioned on the other side of the positioning plate, the cylinder body of the cylinder is fixedly connected with the positioning plate, and a piston rod in the cylinder can penetrate through a through hole in the positioning plate to perform telescopic motion;

the locking sliding block is wedge-shaped and is arranged at the same side of the motor shaft positioning device, and a sliding groove penetrating through two ends is formed in the inclined surface of the locking sliding block along the length direction;

the inclined surface of the wedge block is provided with a sliding block protruding outwards along the length direction, the sliding block is installed in a sliding groove of the locking sliding block, the wedge block is fixedly connected with a piston rod in the air cylinder, when the piston rod performs telescopic motion, the wedge block can be driven to move back and forth along the sliding groove in the locking sliding block, and then the locking sliding block is driven to perform far/close sliding on the positioning plate relative to the motor shaft positioning device;

the cylinder control valve is connected with the control end of the cylinder and used for controlling the movement of the cylinder.

Preferably, the pneumatic fixture is used in processing of motor shaft still includes: a positioning spindle located below the motor shaft positioning device;

the positioning mandrel comprises: a base, a nut, and a spindle;

the base is used for being fixedly connected with an external processing machine tool, and a through hole penetrating through the upper end and the lower end is formed in the base;

the nut is fixedly arranged on the upper surface of the base, and a screw hole in the nut and a through hole in the base are concentrically arranged;

the outer side wall of the lower portion of the mandrel is provided with threads, the threads of the lower end of the mandrel are installed in the nut, the upper end of the mandrel is a cone and is opposite to a V-shaped limiting groove in the motor shaft positioning device.

Further preferably, the pneumatic fixture is used in motor shaft processing still includes: positioning blocks;

the positioning block is fixedly connected with the positioning plate, and the side wall of the positioning block is connected with the side wall of the wedge block.

Further preferably, the pneumatic fixture is used in motor shaft processing still includes: a guide plate;

the guide plate is located the top of locking slider, the lateral wall of guide plate with locating plate fixed connection, the lower surface of guide plate with the upper surface of locking slider meets.

The utility model provides a pneumatic fixture is used in motor shaft processing, support as whole with the base, cooperate by motor shaft positioner and locking slider and carry out the location locking of motor shaft, wherein, the locking slider is the wedge, the inclined plane of locking slider and the inclined plane of voussoir cooperate through slider and spout, and the voussoir is driven by the piston rod in the cylinder, work through operation cylinder control valve control cylinder, when driving the voussoir and removing, can drive the locking slider and be close to/keep away from the slip along the relative motor shaft positioner of base, accomplish the locking and the uninstallation function of motor shaft.

The utility model provides a pneumatic fixture is used in motor shaft processing, when carrying out the tight location of clamp of motor shaft, only need to treat that the motor shaft of processing is placed in motor shaft positioner's the spacing recess of V type, through actuating cylinder drive voussoir, it removes to drive the locking slider, make it offset with the motor shaft, it is tight to realize and fix a position the clamp, whole operation process is simple, high work efficiency, and the locking of motor shaft is locked by the power of relying on the cylinder, can avoid producing because the vibration is not hard up in the course of working, can effectively improve processingquality, ensure the machining precision, this anchor clamps have simple structure, and reasonable design, high durability and convenient use, it is more stable to the location of motor shaft.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

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

Fig. 1 is the utility model discloses an embodiment provides a pneumatic fixture for motor shaft processing's structural schematic diagram.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus consistent with certain aspects of the invention, as detailed in the appended claims.

In order to solve the problems that the conventional positioning clamp needs to manually screw a nut for clamping, not only has low working efficiency, but also is easy to loosen in the machining process and influences the machining quality, the embodiment provides a pneumatic clamp for machining a motor shaft, which mainly comprises a base 1, a motor shaft positioning device 2, an air cylinder 3, a locking slide block 4, a wedge block 5 and an air cylinder control valve 6, and is characterized in that the base 1 comprises two fixing blocks 11 and a positioning plate 12, the two fixing blocks 11 are arranged at intervals and are used for being fixedly connected with an external machining machine tool, the positioning plate 12 is erected above the two fixing blocks 11, the bottom edge of the positioning plate 12 is respectively fixedly connected with the upper surfaces of the two fixing blocks 11, and through holes penetrating through the two sides are formed in the positioning plate 12; the motor shaft positioning device 2 is positioned at one side of the positioning plate 12 and is fixedly connected with the side wall of the positioning plate 12, and a V-shaped limiting groove is formed in the side wall of the motor shaft positioning device 2, which is close to the through hole in the positioning plate 12, along the height direction and extends along the height direction of the motor shaft positioning device 2 to penetrate through the upper end and the lower end of the motor shaft positioning device; the cylinder 3 is positioned at the other side of the positioning plate 12, the cylinder body of the cylinder 3 is fixedly connected with the positioning plate 12, and a piston rod in the cylinder 3 can extend and retract through a through hole in the positioning plate 12; the locking slide block 4 is wedge-shaped and is arranged at the same side of the motor shaft positioning device 2, and a sliding groove which runs through the two ends is arranged on the inclined surface of the locking slide block 4 along the length direction; the inclined plane of the wedge block 5 is provided with a slide block which protrudes outwards along the length direction, the slide block is arranged in a slide groove of the locking slide block 4, the wedge block 5 is fixedly connected with a piston rod in the cylinder 3, when the piston rod performs telescopic motion, the wedge block 5 can be driven to move back and forth along the slide groove in the locking slide block 4, and then the locking slide block 4 is driven to perform far/close sliding on the positioning plate 12 relative to the motor shaft positioning device 2; the cylinder control valve 6 is fixedly installed on the positioning plate 12, and the cylinder control valve 6 is connected with the control end of the cylinder 3 and used for controlling the movement of the cylinder 3.

The specific working process of the pneumatic clamp for machining the motor shaft is as follows:

when the starting fixture is used, the two fixed blocks in the base are respectively fixed on a machine tool through bolts, so that the starting fixture is integrally fixed on the machine tool, the piston rod in the control cylinder of the operating cylinder is extended outwards to drive the wedge block to move towards the direction far away from the positioning plate, and further drive the locking slide block to move along the positioning plate towards the direction far away from the motor shaft positioning device, and the control cylinder of the operating cylinder stops working until the locking slide block is far away from the motor shaft positioning device for a certain distance; then a motor shaft A to be processed is placed in a V-shaped limiting groove of a motor shaft positioning device, so that the side face of the motor shaft A is connected with the two side faces of the V-shaped limiting groove, at the moment, the piston rod in the cylinder is controlled by operating the cylinder control valve again to move in a contraction motion mode, the wedge block is driven to move towards the direction close to the positioning plate, the locking sliding block is driven to move towards the direction close to the motor shaft positioning device along the positioning plate until the locking sliding block is tightly abutted against a substitute processing motor shaft, after the motor shaft is positioned and locked, the cylinder control valve is operated to stop the cylinder to work, and then the processing operation of the motor shaft A can be carried out. The positioning and clamping operation for the motor shaft A is simple and easy to implement and convenient to operate.

In order to solve the above-mentioned problems, as an improvement of the technical solution, referring to fig. 1, the pneumatic clamp for processing the motor shaft is further provided with a positioning mandrel 7, the positioning mandrel 7 is located below the motor shaft positioning device 2, the positioning mandrel 7 is composed of a base 71, a nut 72 and a mandrel 73, wherein the base 71 is used for being fixedly connected with an external machine tool, the base 71 is provided with a through hole penetrating through the upper end and the lower end, the nut 72 is fixedly installed on the upper surface of the base 71, a screw hole on the nut 72 is concentrically arranged with the through hole on the base 71, the outer side wall of the lower part of the mandrel 73 is provided with a thread, the lower end thread of the mandrel 73 is installed in the nut 72, and the upper end of the mandrel 73 is a cone and is opposite to the V-shaped limiting groove in the motor shaft positioning device 2.

Through foretell structural design, when the tight location of clamp of motor shaft, can overlap the centre bore of motor shaft bottom in the upper end of location mandrel center pin, realize spacing to the motor shaft bottom, effectively solve its problem that takes place to vibrate in the course of working. In addition, the nut is matched with the threads at the lower part of the spindle, and the main purpose is to realize height adjustment of the positioning spindle so as to adapt to motor shaft processing with different lengths.

In order to realize the movement limit of the wedge block 5 and avoid the radial deviation in the cylinder driving process, as an improvement of the technical scheme, referring to fig. 1, a positioning block 8 is further arranged in the pneumatic fixture for motor shaft machining, wherein the positioning block 8 is fixedly connected with a positioning plate 12, and the side wall of the positioning block 8 is connected with the side wall of the wedge block 5, so that the radial limit of the wedge block 5 is realized.

In order to realize the guiding and limiting of the sliding direction of the locking slider, as an improvement of the technical scheme, referring to fig. 1, a guide plate 9 is further arranged in the pneumatic clamp for motor shaft machining, the guide plate 9 is positioned above the locking slider 4, the side wall of the guide plate 9 is fixedly connected with a positioning plate 12, and the lower surface of the guide plate 9 is connected with the upper surface of the locking slider 4, so that the locking slider 4 is prevented from generating low height in the translational sliding process, and the guiding and limiting are performed through the guide plate 9.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims

1. The utility model provides a pneumatic fixture for motor shaft processing which characterized in that includes: the device comprises a base (1), a motor shaft positioning device (2), a cylinder (3), a locking sliding block (4), a wedge block (5) and a cylinder control valve (6);

the base (1) comprises: the positioning device comprises two fixing blocks (11) and a positioning plate (12), wherein the two fixing blocks (11) are arranged at intervals and are used for being fixedly connected with an external processing machine tool, the positioning plate (12) is erected above the two fixing blocks (11), the bottom edge of the positioning plate (12) is fixedly connected with the upper surfaces of the two fixing blocks (11), and through holes penetrating through the two sides are formed in the positioning plate (12);

the motor shaft positioning device (2) is positioned on one side of the positioning plate (12) and is fixedly connected with the side wall of the positioning plate (12), and a V-shaped limiting groove penetrating through the upper end and the lower end is formed in the side wall of one side, close to a through hole in the positioning plate (12), of the motor shaft positioning device (2) in the height direction;

the cylinder (3) is positioned at the other side of the positioning plate (12), the cylinder body of the cylinder (3) is fixedly connected with the positioning plate (12), and a piston rod in the cylinder (3) can penetrate through a through hole in the positioning plate (12) to perform telescopic motion;

the locking sliding block (4) is wedge-shaped and is arranged at the same side of the motor shaft positioning device (2), and a sliding groove penetrating through two ends is formed in the inclined surface of the locking sliding block (4) along the length direction;

the inclined surface of the wedge block (5) is provided with a sliding block protruding outwards along the length direction, the sliding block is installed in a sliding groove of the locking sliding block (4), the wedge block (5) is fixedly connected with a piston rod in the cylinder (3), and when the piston rod performs telescopic motion, the wedge block (5) can be driven to move back and forth along the sliding groove in the locking sliding block (4), so that the locking sliding block (4) is driven to perform far/close sliding on the positioning plate (12) relative to the motor shaft positioning device (2);

the cylinder control valve (6) is connected with the control end of the cylinder (3) and used for controlling the movement of the cylinder (3).

2. The pneumatic jig for motor shaft machining according to claim 1, further comprising: a positioning spindle (7), the positioning spindle (7) being located below the motor shaft positioning device (2);

the positioning spindle (7) comprises: a base (71), a nut (72), and a spindle (73);

the base (71) is fixedly connected with an external processing machine tool, and a through hole penetrating through the upper end and the lower end is formed in the base (71);

the nut (72) is fixedly arranged on the upper surface of the base (71), and a screw hole in the nut (72) and a through hole in the base (71) are concentrically arranged;

the outer side wall of the lower portion of the mandrel (73) is provided with threads, the lower end of the mandrel (73) is installed in the nut (72) in a threaded mode, the upper end of the mandrel (73) is a cone, and the cone is opposite to a V-shaped limiting groove in the motor shaft positioning device (2).

3. The pneumatic jig for machining a motor shaft of claim 1, further comprising: a positioning block (8);

the positioning block (8) is fixedly connected with the positioning plate (12), and the side wall of the positioning block (8) is connected with the side wall of the wedge block (5).

4. The pneumatic jig for motor shaft machining according to claim 1, further comprising: a guide plate (9);

the guide plate (9) is located above the locking sliding block (4), the side wall of the guide plate (9) is fixedly connected with the positioning plate (12), and the lower surface of the guide plate (9) is connected with the upper surface of the locking sliding block (4).