CN108818152B

CN108818152B - Clamping detection and correction device for clamping chuck in screw rotor machining

Info

Publication number: CN108818152B
Application number: CN201810618116.XA
Authority: CN
Inventors: 谢长雄; 邓小雷; 陈艳; 戚祝晖; 高昀驰; 李文达
Original assignee: Quzhou University
Current assignee: Tongxiang Beite Technology Co.,Ltd.
Priority date: 2018-06-15
Filing date: 2018-06-15
Publication date: 2020-05-08
Anticipated expiration: 2038-06-15
Also published as: CN108818152A

Abstract

The invention provides a clamping detection and correction device for a clamping chuck in screw rotor machining, and belongs to the technical field of machinery. The utility model provides a clamping of clamping chuck detects orthotic devices in screw rotor processing, which comprises a frame, the box has set firmly in the frame, be provided with the clamping mechanism who is used for the clamping bar on the box, still be provided with the clamping detection device who is used for measuring bar skew direction in the frame, the clamping detection device includes the mounting bracket, the mount, a plurality of infrared emitter and receiving cylinder, the mounting bracket sets firmly in the frame, the mounting bracket is cyclic annular, angle such as infrared emitter sets firmly on the mounting bracket, the infrared ray that infrared emitter launches can cross on the axis of receiving cylinder, the mount sets firmly in the frame, receiving cylinder sets firmly on the mount. The invention has the advantage of accurately measuring the offset of the bar stock.

Description

Clamping detection and correction device for clamping chuck in screw rotor machining

Technical Field

The invention belongs to the technical field of machinery, and particularly relates to a clamping detection and correction device for a clamping chuck in screw rotor machining.

Background

Along with the continuous improvement of machine parts processing technique, the keyway is indispensable, the effect of keyway is connected hole class part and axle type part, make and to transmit the moment of torsion between the two, the bar that selects before the screw rotor processing is at the course of working of milling flutes, need guarantee the straightness that hangs down between bar and the milling cutter 39 on the one hand, the levelness of bar, another convenient needs to guarantee that the bar does not have the bending, the keyway has the deviation if, can cause the asymmetric condition between two parts when connecting, at long-time operation in-process, the bar wearing and tearing aggravation, probably lead to the damage of equipment, need design out the device that can accurate measurement bar clamping position to this.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a clamping detection and correction device for a clamping chuck in screw rotor machining, which has the characteristic of accurately measuring the offset of a bar.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a clamping of clamping chuck detects orthotic devices in screw rotor processing, includes the frame, the frame on set firmly the box, its characterized in that, the box on be provided with the clamping mechanism who is used for the clamping bar, the frame on still be provided with the clamping detection device who is used for measuring bar skew direction, clamping detection device include mounting bracket, mount, a plurality of infrared emitter and receiving cylinder, the mounting bracket set firmly in the frame, the mounting bracket is cyclic annular, infrared emitter wait the angle set firmly on the mounting bracket, the infrared ray that infrared emitter launches can cross with the axis of receiving cylinder on, the mount set firmly in the frame, the receiving cylinder set firmly on the mount, the receiving cylinder is cylindric, receiving cylinder inner wall laminating have the receiving layer, the receiving layer is used for receiving the infrared ray of shining the bar after-surface reflection, the receiving layer is provided with three reference lines along the axial direction, and the three reference lines are arranged around the axis of the receiving cylinder at equal angles; the three reference lines correspond to the infrared emitters one by one; the frame on be provided with and be used for the location and carry out the location aligning gear of rectifying to the bar.

The working principle of the invention is as follows: penetrate the bar from the feed inlet, then penetrate the discharge gate, the one end of bar stretches out the discharge gate and extends on the correctional agency, then carry out the clamping through work clamping machine and fix, start clamping detection device, it has the bar to penetrate in receiving cylinder and the mounting bracket, infrared emitter launches the infrared ray on the installation, the infrared ray reflects through the bar surface, and inject on the receiving layer on the receiving cylinder inner wall, off-set position and the direction of bar are judged out to the skew distance of infrared ray and datum line on through receiving the layer. When the infrared ray and the axis of the bar stock are in the same plane, the reflection point of the infrared ray is positioned on the reference line of the receiving layer, and the bar stock is in a calibration state. And then corrected by a corrective mechanism. Through clamping detection device and correction mechanism's cooperation, can be accurate correct the bar, make the bar position more accurate when the milling flutes.

In the clamping of clamping chuck detects orthotic devices in above-mentioned screw rotor processing, clamping mechanism including a rotation section of thick bamboo and clamping chuck body, a rotation section of thick bamboo rotate and set up in the box, clamping chuck body set firmly on a rotation section of thick bamboo, clamping chuck body is located the discharge gate, clamping chuck body on have the fixture block of three equal angle setting, the fixture block on all set up flutedly, the recess in slide and be provided with the briquetting, the briquetting pass through the pressure spring with recess bottom link to each other, the briquetting on set firmly left side and block piece and right side and block the piece, block on a left side and block and form a plurality of restriction chambeies between the piece with the right side, the restriction intracavity is equipped with the ball, a rotation section of thick bamboo link to each other with a drive mechanism that has started to rotate.

When the bar penetrates into the rotating cylinder and the clamping chuck body, the bar can be in contact with the ball on the pressing block firstly, when the bar is plugged inwards, the bar is not in contact with the clamping block through the ball and the surface of the bar, the bar slides in the process, the ball not only plays a role in assisting in conveying, but also plays a role in scraping the surface of the bar in a house by the clamping block. When the clamping chuck body begins to clamp the bar, a pressing block in the clamping block is pressed into the groove under the stress, and the bar is in contact with the clamping block and is fixed in a static state. The rotating cylinder is driven to rotate by the driving mechanism, so that the bar can be driven to rotate by the clamping chuck. The clamping principle of the clamping chuck body is consistent with that of a common lathe on the market.

In the clamping detection and correction device for the clamping chuck in the screw rotor machining process, the driving mechanism comprises a first motor, a first gear and a second gear, the first motor is fixedly arranged at the bottom of the box body, the first gear is coaxially and fixedly arranged on an output shaft of the first motor, the second gear is coaxially and fixedly arranged on the rotating cylinder, and the first gear is meshed with the second gear. The first motor is started to drive the first gear to rotate, the second gear is driven to rotate by the first gear, and the rotating cylinder is driven to rotate by the second gear.

In the clamping detection and correction device for the clamping chuck in the screw rotor machining process, the pressing block is provided with the limiting protrusion, the inner wall of the groove is provided with the limiting groove corresponding to the limiting protrusion, and the limiting protrusion is clamped into the limiting groove and can move in the limiting groove. Through the cooperation of spacing arch and spacing groove, make the briquetting only reciprocate in the recess. The stability of the briquette is improved.

In the clamping detection and correction device for the clamping chuck in the screw rotor machining process, the diameter of the ball is larger than the thickness of the left stop block. The diameter of the ball is larger than the thickness of the left stop block, so that the ball can be in contact with the surface of the bar stock.

In the clamping detection and correction device for the clamping chuck in the screw rotor machining process, the reference line is provided with scales. When the scale values of the three infrared rays on the reference line are equal, the bar is in a linear state, and when the scale values of the three infrared rays on the reference line are unequal, the bar is in a bent state.

In the clamping detection and correction device for the clamping chuck in the screw rotor machining process, the infrared emitter is obliquely arranged on the mounting frame. The irradiation opening of the infrared emitter has an angle of incidence with the bar stock, the angle of incidence being between 30 and 60 °.

In the clamping detection and correction device for the clamping chuck in the screw rotor machining process, the receiving layer is made of white semitransparent materials. A white translucent receiving layer enables better infrared observation.

In the clamping detection and correction device of the clamping chuck in the screw rotor machining process, the receiving cylinder is made of a transparent acrylic material. The position of the infrared ray on the receiving layer can be directly observed from the outside of the receiving cylinder, so that the adjustment is convenient.

In the clamping detection and correction device for the clamping chuck in the screw rotor machining, the positioning and correction mechanism comprises a push rod motor I, a push rod motor II, a push rod motor III, a push block I, a push block II and a push block III, the first push rod motor is fixedly arranged on the frame, an output shaft of the first push rod motor is vertically upward, the first push block is fixedly arranged at the end part of the output shaft of the first push rod motor, the second push rod motor is fixedly arranged on the frame, an output shaft of the second push rod motor is horizontally arranged, the second push block is fixedly arranged at the end part of the output shaft of the second push rod motor, the third push rod motor is fixedly arranged on the rack, an output shaft of the third push rod motor is horizontally arranged, the third push block is fixedly arranged at the end part of the output shaft of the third push rod motor, an output shaft of the second push rod motor is arranged opposite to the output of the third push rod motor, and the first push block, the second push block and the third push block form a placing position for placing a bar. The first push rod motor can adjust the reciprocating of the first push block, the second push rod motor can adjust the moving of the second push block, the third push rod motor can adjust the moving of the third push block, the second push block and the third push block can adjust the left and right moving of the bar, and the second push block and the third push block can extrude and fix the bar.

Compared with the prior art, the invention has the following advantages:

1. according to the invention, through the matching of the clamping detection device and the correction mechanism, the bar stock can be accurately corrected, so that the position of the bar stock is more accurate when the groove is milled.

2. The receiving tube and the mounting frame are internally penetrated with a bar, an infrared emitter on the mounting frame emits infrared rays, the infrared rays are reflected through the surface of the bar and penetrate into a receiving layer on the inner wall of the receiving tube, and the deviation position and direction of the bar are judged through the deviation distance between the infrared rays and the reference line on the receiving layer. When the infrared ray and the axis of the bar stock are in the same plane, the reflection point of the infrared ray is positioned on the reference line of the receiving layer, and the bar stock is in a calibration state.

Drawings

FIG. 1 is a schematic of the present invention.

Figure 2 is a schematic view of the clamping mechanism of the present invention.

Fig. 3 is a schematic view of a clamp block of the present invention.

FIG. 4 is a schematic view of the clamping detection device of the present invention when activated.

FIG. 5 is a schematic view of the clamping detection device of the present invention for bar penetration.

Figure 6 is a schematic view of a positioning orthotic mechanism according to the present invention.

In the figure, 1, a frame; 2. a box body; 3. a clamping mechanism; 4. a clamping detection device; 5. positioning a correction mechanism; 6. placing bits; 7. a rotating cylinder; 8. clamping the chuck body; 9. a clamping block; 10. a groove; 11. briquetting; 12. a pressure spring; 13. a left stop block; 14. a right blocking tab; 15. a ball bearing; 16. a first motor; 17. a first gear; 18. a second gear; 19. a limiting bulge; 20. a limiting groove; 21. a mounting frame; 22. a fixed mount; 23. an infrared emitter; 24. a receiving drum; 25. a reference line; 26. a push rod motor I; 27. a push rod motor II; 28. a third push rod motor; 29. a first push block; 30. a second push block; 31. and a third pushing block.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 6, a clamping detection and correction device for a clamping chuck in screw rotor processing comprises a frame 1, a box body 2 is fixedly arranged on the frame 1, a feed inlet and a discharge outlet are formed in the box body 2, the feed inlet corresponds to the discharge outlet in position, a clamping mechanism 3 for clamping a bar is arranged on the box body 2, a clamping detection device 4 for measuring the offset direction of the bar is arranged on the frame 1, the clamping detection device 4 comprises a mounting frame 21, a fixing frame 22, a plurality of infrared emitters 23 and a receiving cylinder 24, the mounting frame 21 is fixedly arranged on the frame 1, the mounting frame 21 is annular, the infrared emitters 23 are fixedly arranged on the mounting frame 21 at equal angles, infrared rays emitted by the infrared emitters 23 can intersect with the axis of the receiving cylinder 24, the fixing frame 22 is fixedly arranged on the frame 1, the receiving cylinder 24 is fixedly arranged on the fixing frame 22, and, a receiving layer is attached to the inner wall of the receiving cylinder 24 and used for receiving infrared rays reflected after being irradiated to the surface of the bar stock, three axial datum lines 25 are arranged on the receiving layer, and the three datum lines 25 are arranged around the axis of the receiving cylinder 24 at equal angles; the three reference lines 25 correspond to the infrared emitters 23 one by one; the frame 1 is provided with a positioning correction mechanism 5 for positioning and correcting the deviation of the bar, and the frame 1 is also provided with a milling mechanism for milling grooves on the bar.

Through the cooperation of clamping detection device 4 and aligning gear, can be accurate correct the bar, make the bar position more accurate when the milling flutes.

Specifically, clamping machine constructs 3 including a section of thick bamboo and clamping chuck body 8, a section of thick bamboo rotates and sets up in box 2, clamping chuck body 8 sets firmly on a section of thick bamboo, clamping chuck body 8 is located the discharge gate, clamping chuck body 8 is last to have the clamp splice 9 of three equal angle setting, all set up fluted 10 on the clamp splice 9, it is provided with briquetting 11 to slide in the recess 10, briquetting 11 links to each other bottom recess 10 through pressure spring 12, it blocks piece 13 and right block piece 14 to have set firmly the left side on the briquetting 11, it forms a plurality of restriction chambeies to block piece 13 and the right side and block between the piece 14 on the left side, the restriction intracavity is equipped with ball 15, a section of thick bamboo links to each other with a drive mechanism who plays the.

When the bar penetrates into the rotating cylinder and the clamping chuck body 8, the bar can be in contact with the ball 15 on the pressing block 11, when the bar is plugged inwards, the bar is not in contact with the clamping block 9 through the ball 15 and the surface of the bar, and in the sliding process of the bar, the ball 15 not only plays a role in assisting in conveying, but also plays a role in scraping the surface of the bar in a house by the clamping block 9. When the clamping chuck body 8 starts to clamp the bar stock, the pressing block 11 in the clamping block 9 is pressed into the groove 10 under force, and the bar stock is in contact with the clamping block 9 and is fixed in a static state. The rotating cylinder is driven to rotate by the driving mechanism, so that the bar can be driven to rotate by the clamping chuck. The clamping principle of the clamping chuck body 8 is consistent with that of a common lathe on the market.

Specifically, the driving mechanism comprises a first motor 16, a first gear 17 and a second gear 18, the first motor 16 is fixedly arranged at the bottom of the box body 2, the first gear 17 is coaxially and fixedly arranged on an output shaft of the first motor 16, the second gear 18 is coaxially and fixedly arranged on the rotating cylinder, and the first gear 17 is meshed with the second gear 18. The first motor 16 is started to drive the first gear 17 to rotate, the first gear 17 rotates to drive the second gear 18 to rotate, and the second gear 18 rotates to drive the rotating cylinder to rotate.

Specifically, the pressing block 11 is provided with a limiting protrusion 19, the inner wall of the groove 10 is provided with a limiting groove 20 corresponding to the limiting protrusion 19, and the limiting protrusion 19 is clamped in the limiting groove 20 and can move in the limiting groove 20. The pressing block 11 can only move up and down in the groove 10 through the matching of the limiting protrusion 19 and the limiting groove 20. The stability of the briquette 11 is improved.

Specifically, the diameter of the ball 15 is larger than the thickness of the left stopper 13. The diameter of the ball 15 is larger than the thickness of the left stopper 13, so that the ball 15 can be in contact with the surface of the bar material.

Specifically, the reference line 25 has a scale thereon. When the scale values of the three infrared rays on the reference line 25 are equal, the bar is in a linear state, and when the scale values of the three infrared rays on the reference line 25 are unequal, the bar is in a bent state.

Specifically, the infrared emitter 23 is obliquely provided on the mounting frame 21. The irradiation opening of the infrared emitter 23 has an angle of incidence with the bar, which is between 30 and 60 °.

In particular, the receiving layer is a white translucent material. A white translucent receiving layer enables better infrared observation.

Specifically, the receiving cylinder 24 is a transparent acrylic material. The position of the infrared on the receiving layer can be observed directly from outside the receiving cylinder 24, facilitating adjustment.

Specifically, the positioning correction mechanism 5 comprises a first push rod motor 26, a second push rod motor 27, a third push rod motor 28, a first push block 29, a second push block 30 and a third push block 31, the first push rod motor 26 is fixedly arranged on the rack 1, an output shaft of the first push rod motor 26 is vertically upward, the first push block 29 is fixedly arranged at the end part of the output shaft of the first push rod motor 26, the second push rod motor 27 is fixedly arranged on the rack 1, the output shaft of the second push rod motor 27 is horizontally arranged, the second push block 30 is fixedly arranged at the end part of the output shaft of the second push rod motor 27, the third push rod motor 28 is fixedly arranged on the rack 1, the output shaft of the third push rod motor 28 is horizontally arranged, the third push block 31 is fixedly arranged at the end part of the output shaft of the push rod motor, the output shaft of the second push rod motor 27 is oppositely arranged with the output of the third push rod motor 28, and the first push. The first push rod motor 26 can adjust the up-and-down movement of the first push block 29, the second push rod motor 27 can adjust the movement of the second push block 30, the third push rod motor 28 can adjust the movement of the third push block 31, the second push block 30 and the third push block 31 can adjust the left-and-right movement of the bar, and the second push block 30 and the third push block 31 can extrude and fix the bar.

The milling mechanism comprises a push rod motor IV, a push rod motor V, a lifting plate, a moving plate, a tool rest, a tool bit and a milling cutter, wherein the push rod motor IV is fixedly arranged on the rack 1, a book output shaft of the push rod motor IV is vertically upward, the lifting plate is fixedly arranged at the end part of an output shaft of the push rod motor IV, the moving plate is arranged on the lifting plate in a sliding mode, the push rod motor V is fixedly arranged on the lifting plate, and an output shaft of the push rod motor V is connected with the moving plate; the knife rest sets firmly on the movable plate, and the tool bit rotates and sets up on the knife rest, and milling cutter sets firmly on the tool bit, has set firmly the second motor on the movable plate, and the output shaft of second motor is vertical upwards, has set firmly gear three on the tool bit, and the coaxial gear four that has set firmly on the output shaft of second motor, gear three and gear four meshing still set firmly on the lifter plate can be with the second motor, the cladding of knife rest shell. The second motor is started to drive the gear four to rotate, the gear four drives the gear three to rotate, the gear three drives the cutter head to rotate, and the cutter head drives the milling cutter to rotate. The fourth push rod motor is started to drive the lifting plate to move up and down, and the fifth push rod motor is started to drive the moving plate to move left and right; the moving direction of the moving plate is along the axial direction of the receiving cylinder 24. This milling mechanism is for following supreme cutting to the bar down, and the smear metal down drops from last, and the smear metal can not long-pending stay in the keyway, can avoid the smear metal to stay in the keyway and influence the machining precision of keyway.

Specifically, a liquid spraying mechanism used for lubricating and cooling is arranged on the machine tool and comprises a liquid storage tank, a constant flow pump and a sprayer, the liquid storage tank is fixedly arranged on the machine frame 1, the sprayer is fixedly arranged on the machine frame 1 through a support, the sprayer of the sprayer is aligned with the milling position, the liquid storage tank is connected with the sprayer through a pipeline, the constant flow pump is arranged on the pipeline, and the constant flow pump is fixedly arranged on the machine frame 1. The night spraying mechanism can perform lubricating and cooling treatment on a cutting part. The surface smoothness of the cutting is improved.

The working principle of the invention is as follows: penetrate the bar from the feed inlet, then penetrate the discharge gate, the one end of bar stretches out the discharge gate and extends on the correctional agency, then it is fixed to carry out the clamping through work clamping machine structure 3, start clamping detection device 4, measure the deflection direction of bar when the clamping through clamping detection device 4, it has the bar to penetrate in receiving cylinder 24 and the mounting bracket 21, infrared emitter 23 in the installation launches the infrared ray, the infrared ray reflects through the bar surface, and inject on the receiving layer on the receiving cylinder 24 inner wall, off-position and the direction of bar are judged out to the skew distance through infrared ray and datum line 25 on the receiving layer. When the axes of the infrared ray and the bar stock are in the same plane, the reflection point of the infrared ray is positioned on the datum line 25 of the receiving layer, and the bar stock is in a calibration state; then the correction is carried out through the correction mechanism, and then the groove milling processing is carried out through the milling mechanism.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. The utility model provides a clamping of clamping chuck detects orthotic devices in screw rotor processing, includes the frame, the frame on set firmly the box, its characterized in that, the box on be provided with the clamping mechanism who is used for the clamping bar, the frame on still be provided with the clamping detection device who is used for measuring bar skew direction, clamping detection device include mounting bracket, mount, a plurality of infrared emitter and receiving cylinder, the mounting bracket set firmly in the frame, the mounting bracket is cyclic annular, infrared emitter wait the angle set firmly on the mounting bracket, the infrared ray that infrared emitter launches can cross with the axis of receiving cylinder on, the mount set firmly in the frame, the receiving cylinder set firmly on the mount, the receiving cylinder is cylindric, receiving cylinder inner wall laminating have the receiving layer, the receiving layer is used for receiving the infrared ray of shining the bar after-surface reflection, the receiving layer is provided with three reference lines along the axial direction, and the three reference lines are arranged around the axis of the receiving cylinder at equal angles; the three reference lines correspond to the infrared emitters one by one; the frame on be provided with and be used for the location and carry out the location orthotic devices who rectifies to the bar, clamping machine construct including a rotation section of thick bamboo and clamping chuck body, a rotation section of thick bamboo rotate and set up in the box, clamping chuck body set firmly on a rotation section of thick bamboo, clamping chuck body is located the discharge gate, clamping chuck body on have the fixture block of three angle settings such as, the fixture block on all set up flutedly, the recess in slide and be provided with the briquetting, the briquetting pass through the pressure spring with recess bottom link to each other, the briquetting on set firmly left side and block piece and right side and block the piece, block a left side and block and form a plurality of restriction chambeies between the piece with the right side, the restriction intracavity is equipped with the ball, a rotation section of thick bamboo link to each other with a drive mechanism who has taken up.

2. The device for detecting and correcting the clamping of the clamping chuck in the screw rotor machining process as claimed in claim 1, wherein the driving mechanism comprises a first motor, a first gear and a second gear, the first motor is fixedly arranged at the bottom of the box body, the first gear is coaxially and fixedly arranged on an output shaft of the first motor, the second gear is coaxially and fixedly arranged on the rotating cylinder, and the first gear is meshed with the second gear.

3. The clamping detection and correction device for the clamping chuck in screw rotor machining according to claim 1, characterized in that the pressing block is provided with a limiting protrusion, the inner wall of the groove is provided with a limiting groove corresponding to the limiting protrusion, and the limiting protrusion is clamped into the limiting groove and can move in the limiting groove.

4. The clamping detection and correction device for the clamping chuck in the screw rotor machining process is characterized in that scales are arranged on the reference line; the receiving layer is a white semitransparent material; the receiving cylinder is made of transparent acrylic material.

5. The device for detecting and correcting the clamping of the clamping chuck in the screw rotor machining process as claimed in claim 1, wherein the positioning and correcting mechanism comprises a first push rod motor, a second push rod motor, a third push rod motor, a first push block, a second push block and a third push block, the first push rod motor is fixedly arranged on the frame, an output shaft of the first push rod motor is vertically upward, the first push block is fixedly arranged at an end portion of an output shaft of the first push rod motor, the second push rod motor is fixedly arranged on the frame, an output shaft of the second push rod motor is horizontally arranged, the second push block is fixedly arranged at an end portion of an output shaft of the second push rod motor, the third push rod motor is fixedly arranged on the frame, an output shaft of the third push rod motor is horizontally arranged, the third push block is fixedly arranged at an end portion of an output shaft of the push rod motor, an output shaft of the second push rod motor is arranged opposite to an output, The second pushing block and the third pushing block form a placing position for placing a bar.