CN112497000A - Automatic carbon brush grinding surface chamfering equipment and machining method thereof - Google Patents

Abstract

The invention belongs to the technical field of carbon brushes, and discloses carbon brush grinding surface chamfering automation equipment which comprises a table body, wherein a vibration disc hopper is arranged on one side of the top of the table body, a moving table is connected to the other side of the top of the table body, a fixed table is fixed on the top of the table body and positioned between the moving table and the vibration disc hopper, a controller is arranged on one side of the table body, a guide plate is connected to one side of the fixed table, the top of the table body is placed on a material receiving frame under the position close to the guide plate, and two hydraulic cylinders are arranged on the top of the table body and positioned between the moving table and the material receiving frame. The clamping effect is greatly improved.

Description

Automatic carbon brush grinding surface chamfering equipment and machining method thereof

Technical Field

The invention belongs to the technical field of carbon brushes, and particularly relates to automation equipment for chamfering a grinding surface of a carbon brush and a processing method thereof.

Background

Carbon brushes, also called brushes, are widely used as sliding contacts in many electrical devices, and the carbon brushes are mainly made of graphite, impregnated graphite, and metal (copper-containing, silver) graphite, and are devices for transmitting energy or signals between a fixed part and a rotating part of a motor or a generator or other rotating machinery, are generally made of pure carbon and a coagulant, are generally square in shape, are clamped on a metal support, are tightly pressed on a rotating shaft by a spring inside, and transmit electric energy to a coil through a phase changer when the motor rotates.

Processing equipment is made to carbon brush on the existing market, the manufacture process is comparatively loaded down with trivial details, snatchs fixedly through adopting cylinder drive clamping jaw to the product in each manufacturing procedure, but unstable when actually snatching, very easily appears rocking the skew to it is relatively poor to influence the centre gripping effect, and the too big work piece that easily causes of centre gripping dynamics damages, is difficult to accurate efficient removal product after snatching simultaneously, leads to inefficiency, and fixes a position inaccurately, thereby influences the processingquality of mill flour chamfer.

Disclosure of Invention

The invention aims to provide carbon brush grinding surface chamfering automation equipment and a processing method thereof, and aims to solve the problems that a clamping jaw provided in the background technology is unstable when grabbing a product, a workpiece is easy to damage, and the product is difficult to move accurately and efficiently after grabbing.

In order to achieve the purpose, the invention provides the following technical scheme: a carbon brush grinding surface chamfering automation device comprises a table body, wherein a vibration disc hopper is installed on one side of the top of the table body, a moving table is connected to the other side of the top of the table body, a fixed table is fixed between the moving table and the vibration disc hopper at the top of the table body, a controller is installed on one side of the table body, a guide plate is connected to one side of the fixed table, a material receiving frame is placed below the top of the table body close to the guide plate, two hydraulic cylinders are installed between the moving table and the material receiving frame at the top of the table body, fixed plates are fixed above the top ends of the two hydraulic cylinders close to the guide plate, a first motor is installed at the top of one fixed plate, two second motors are fixed at the top of the other fixed plate, an output shaft of the first motor penetrates through the fixed plate and is provided with a grinding disc, an output shaft of the second motor penetrates through the fixed plate and is, the utility model discloses a clamping jaw is installed to the lateral wall of adapter sleeve, and is connected with the second spring between adapter sleeve and the sliding sleeve, the sliding rod is installed to the one end that the mobile station is close to the fixed station, and the both sides of mobile station all are fixed with the cylinder, the both ends of sliding rod all are connected with the sliding sleeve, the one end of cylinder is connected with the sliding sleeve through the support, the outer wall of sliding rod all overlaps and is equipped with two adapter sleeves, two the clamping jaw is all installed.

Preferably, the chamber groove has been seted up to the inside of stage body, and one side of stage body installs driving motor, there is the lead screw inside in chamber groove through bearing swing joint, the barrel is installed to the outer wall of lead screw, and the one end of lead screw is fixed with the second runner, driving motor's output shaft extends to the one end of chamber inslot portion and installs first runner, the cover is equipped with the transmission band between the outer wall of first runner and second runner.

Preferably, connect the inside top of material frame to install first spring, the top of first spring is fixed with the buffer board, the stopper is all installed to the both sides of buffer board, connect the inner wall both sides of material frame all seted up with stopper assorted spacing groove.

Preferably, a clamping block is installed at one end, close to the connecting sleeve, of the clamping jaw, and a clamping groove matched with the clamping block is formed at one end, close to the clamping jaw, of the connecting sleeve.

Preferably, the inner wall of the clamping groove is provided with a rubber pad, and the outer wall of the rubber pad is provided with an anti-slip groove.

Preferably, the bottom of the table body is provided with a support, and the bottom of the support is fixed with a foot pad.

Preferably, the outer wall of the driving motor is provided with a protective cover, and the outer wall of the protective cover is provided with a heat dissipation groove.

Preferably, the cushions are installed on two sides of the inner wall of the clamping jaw, and the outer wall of each cushion is provided with a bulge.

Preferably, the first rotating wheel is positioned below the second rotating wheel, and the outer diameter of the first rotating wheel is equal to that of the second rotating wheel.

A processing method of automatic equipment for chamfering a grinding surface of a carbon brush comprises the following steps:

placing a carbon brush in a vibrating disc hopper, and starting up;

conveying the carbon brush to a fixed table by a vibration disc hopper;

the clamping jaw clamps the carbon brush, the moving platform drives the clamping jaw to move along the guide plate, the upper surface of the carbon brush is ground through a grinding disc during the moving, and the end part of the carbon brush is ground and chamfered through a grinding head;

after the chamfer grinding processing is finished, the moving platform drives the clamping jaw to move to the upper part of the material receiving frame, and the clamping jaw loosens the carbon brush to enable the carbon brush to fall into the material receiving frame;

and finishing the processing once, and then repeating the steps from one step to four to process the next carbon brush.

Compared with the prior art, the invention has the beneficial effects that:

(1) according to the carbon brush clamping device, the connecting sleeve can drive the clamping jaws to linearly move along the horizontal direction through the matching of the structures such as the sliding sleeve, the connecting sleeve and the sliding rod, so that the two clamping jaws can be controlled to stably and rapidly approach or separate from each other, the stability of the clamping jaws for grabbing a carbon brush is further enhanced, the clamping jaws are prevented from shaking and deviating, and the clamping effect is greatly improved.

(2) According to the invention, through the matching of the structures of the screw cylinder, the first rotating wheel, the second rotating wheel, the screw rod and the like, the screw cylinder can drive the moving platform to move along the screw rod, so that the clamping jaw can accurately and efficiently drive the carbon brush to move on the guide plate, the positioning is accurate and efficient, the operation is simple and convenient, and the processing efficiency is greatly improved.

(3) According to the invention, through the matching of the buffer plate, the limiting block, the limiting groove and the first spring, the falling carbon brush can be buffered and decompressed, so that the carbon brush is prevented from being damaged due to overlarge collision force, the material receiving effect is good, the safety is greatly improved, and the product quality is ensured.

(4) According to the invention, through the matching of the clamping block and the clamping groove, the clamping jaw and the connecting sleeve can be rapidly assembled, so that the clamping jaw is convenient to disassemble and replace, and meanwhile, under the matching elasticity of the second spring, the rigid contact between the clamping jaw and the carbon brush can be reduced, so that the carbon brush is prevented from being damaged due to overlarge clamping force, and the practicability of the device is greatly improved.

Drawings

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

FIG. 2 is a front view of the present invention;

FIG. 3 is a schematic view of the internal structure of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 1;

FIG. 5 is an enlarged view of portion B of FIG. 3;

in the figure: 1. a table body; 2. vibrating the disc hopper; 3. a fixed table; 4. a clamping jaw; 5. a drive motor; 6. a mobile station; 7. a cylinder; 8. a slide bar; 9. connecting sleeves; 10. a sliding sleeve; 11. a first motor; 12. a second motor; 13. a guide plate; 14. a buffer plate; 15. a controller; 16. a material receiving frame; 17. a fixing plate; 18. grinding heads; 19. grinding; 20. a hydraulic cylinder; 21. a first spring; 22. a cavity groove; 23. a screw rod; 24. a screw cylinder; 25. a first runner; 26. a conveyor belt; 27. a second runner; 28. a second spring; 29. a card slot; 30. a clamping block; 31. a limiting groove; 32. and a limiting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides the following technical solutions: an automatic carbon brush grinding surface chamfering equipment comprises a table body 1, a vibrating disc hopper 2 is installed on one side of the top of the table body 1, a moving table 6 is connected to the other side of the top of the table body 1, a fixed table 3 is fixed to the top of the table body 1 and located between the moving table 6 and the vibrating disc hopper 2, a controller 15 is installed on one side of the table body 1, the type of the controller 15 is a CPU226, a guide plate 13 is connected to one side of the fixed table 3, a material receiving frame 16 is placed on the top of the table body 1 and located below the guide plate 13, two hydraulic cylinders 20 are installed on the top of the table body 1 and located between the moving table 6 and the material receiving frame 16, fixed plates 17 are fixed to the top ends of the two hydraulic cylinders 20 and located above the guide plate 13, a first motor 11 is installed on the top of one fixed plate 17, two second motors 12 are fixed to the top of the other fixed plate 17, and the second motor 12 and the first motor 11 are electrically connected, the model of the second motor 12 and the model of the first motor 11 are 57D44, the output shaft of the first motor 11 penetrates through the fixing plate 17 and is provided with the grinding disc 19, the output shaft of the second motor 12 penetrates through the fixing plate 17 and is connected with the grinding head 18, one end of the mobile station 6 close to the fixing station 3 is provided with the sliding rod 8, both sides of the mobile station 6 are respectively fixed with the air cylinder 7, both ends of the sliding rod 8 are respectively connected with the sliding sleeve 10, one end of the air cylinder 7 is connected with the sliding sleeve 10 through the bracket, the outer wall of the sliding rod 8 is respectively sleeved with two connecting sleeves 9, the side walls of the two connecting sleeves 9 are respectively provided with the clamping jaw 4, and the second spring 28 is connected between the connecting sleeves 9 and the sliding sleeve 10, when the device is used, the sliding sleeve 10 can be driven to move by the air cylinder 7 in a telescopic manner, then the sliding sleeve, thereby can control two clamping jaws 4 and stabilize quick being close to or keeping away from, and then strengthened clamping jaw 4 and snatched the stability that the carbon brush made, avoided clamping jaw 4 to appear rocking the skew, improved the centre gripping effect greatly.

Further, a cavity 22 is formed in the table body 1, a driving motor 5 is mounted on one side of the table body 1, the driving motor 5 is electrically connected with the controller 15, the driving motor 5 is of the GH-28-750-60S type, a lead screw 23 is movably connected inside the cavity 22 through a bearing, a screw cylinder 24 is mounted on the outer wall of the lead screw 23, a second rotating wheel 27 is fixed at one end of the lead screw 23, a first rotating wheel 25 is mounted at one end of an output shaft of the driving motor 5, which extends to the inside of the cavity 22, a transmission belt 26 is sleeved between the first rotating wheel 25 and the outer wall of the second rotating wheel 27, the first rotating wheel 25 is driven to rotate by the driving motor 5, the lead screw 23 can be rotated by the first rotating wheel 25 driving the second rotating wheel 27 through the transmission belt 26, then the screw cylinder 24 drives the moving table 6 to move along the lead screw 23 under the driving of a screw thread, so that the clamping jaw 4 can accurately and efficiently drive the carbon brush to move on, the positioning is accurate and efficient, and the processing efficiency is greatly improved.

Further, connect the inside top of material frame 16 to install first spring 21, first spring 21's top is fixed with buffer board 14, stopper 32 is all installed to buffer board 14's both sides, connect the inner wall both sides of material frame 16 all seted up with stopper 32 assorted spacing groove 31, when the carbon brush falls in connecing material frame 16, the carbon brush can contact with buffer board 14 earlier, make buffer board 14 drive stopper 32 slide in spacing groove 31, and extrude first spring 21 downwards, thereby can cushion the decompression to the carbon brush that drops, prevented that the carbon brush impact degree from taking place the damage excessively, the security has improved greatly.

Specifically, clamping jaw 4 is close to the one end of adapter sleeve 9 and installs fixture block 30, and adapter sleeve 9 is close to the one end of clamping jaw 4 and seted up with fixture block 30 assorted draw-in groove 29, through fixture block 30 and the cooperation of pegging graft each other with draw-in groove 29, can realize the fast assembly of clamping jaw 4 and adapter sleeve 9, thereby convenient to detach changes clamping jaw 4, simultaneously when two clamping jaw 4 centre gripping carbon brushes, can reduce the rigid contact between clamping jaw 4 and the carbon brush under the second spring 28 elastic action, thereby prevent that the too big carbon brush that causes of centre gripping dynamics from damaging, the practicality of device has been improved greatly.

Specifically, the rubber pad is installed to the inner wall of draw-in groove 29, and the rubber pad has firm effect, and the outer wall of rubber pad has seted up anti-skidding groove.

Specifically, a support is installed at the bottom of the table body 1, the support plays a role in supporting and fixing, and a foot pad is fixed at the bottom of the support.

Specifically, the protective cover is installed on the outer wall of the driving motor 5, the protective cover has the function of protecting the driving motor 5, and the heat dissipation groove is formed in the outer wall of the protective cover.

Specifically, the cushion is all installed to the inner wall both sides of clamping jaw 4, can be further protect the carbon brush through the cushion, and the outer wall of cushion is provided with the arch.

Specifically, the first runner 25 is located below the second runner 27, and the outer diameter of the first runner 25 is equal to the outer diameter of the second runner 27.

A processing method of automatic equipment for chamfering a grinding surface of a carbon brush comprises the following steps:

placing a carbon brush in the vibrating disc hopper 2, and starting up;

the vibrating disc hopper 2 conveys the carbon brush and sends the carbon brush to the fixed table 3;

the clamping jaw 4 clamps the carbon brush, the moving platform 6 drives the clamping jaw 4 to move along the guide plate 13, the upper surface of the carbon brush is ground through the grinding disc 19, and the end part of the carbon brush is ground and chamfered through the grinding head 18;

after the chamfer grinding processing is finished, the moving platform 6 drives the clamping jaw 4 to move to the upper side of the material receiving frame 16, and the clamping jaw 4 loosens the carbon brush to enable the carbon brush to fall into the material receiving frame 16;

and finishing the processing once, and then repeating the steps from one step to four to process the next carbon brush.

The working principle and the using process of the invention are as follows: when the carbon brush holder is used, the carbon brush can be placed in the vibration disc hopper 2 firstly, the carbon brush can be conveyed to the fixed table 3 through the vibration disc hopper 2, then the sliding sleeve 10 is driven to move through the expansion and contraction of the air cylinder 7, the sliding sleeve 10 drives the connecting sleeve 9 to stably slide on the sliding rod 8 through the second spring 28, the connecting sleeve 9 can drive the clamping jaws 4 to linearly move along the horizontal direction, so that the two clamping jaws 4 can be controlled to stably and quickly approach to clamp the carbon brush, the stability of the clamping jaws 4 for grabbing the carbon brush is greatly enhanced, the clamping jaws 4 are prevented from shaking and deviating, meanwhile, the hard contact between the clamping jaws 4 and the carbon brush can be reduced under the elastic action of the second spring 28, the damage caused by the overlarge clamping force is prevented, then the first rotating wheel 25 is driven to rotate by the driving motor 5, and then the first rotating wheel 25 drives the second, thereby the lead screw 23 can be rotated, then the screw cylinder 24 is driven by the screw thread to drive the moving platform 6 to move along the lead screw 23, thereby the clamping jaw 4 can accurately and efficiently drive the carbon brush to move on the guide plate 13, then the hydraulic cylinder 20 drives the fixed plate 17 to lift, meanwhile, the first motor 11 drives the grinding sheet 19 to rotate, the second motor 12 drives the grinding head 18 to rotate, the upper surface of the carbon brush is firstly ground by the grinding sheet 19, the end part of the carbon brush is ground and chamfered by the grinding head 18, thereby the processing is completed, finally, the carbon brush is loosened by the clamping jaw 4 and falls into the material receiving frame 16, at the moment, the carbon brush can be firstly contacted with the buffer plate 14, the buffer plate 14 drives the limiting block 32 to slide in the limiting groove 31, and downwards extrudes the first spring 21, thereby the falling carbon brush can be buffered and decompressed, the damage caused by overlarge collision force is prevented, and the safety is greatly improved, in addition, through the mutual grafting cooperation of fixture block 30 and draw-in groove 29, can realize the fast assembly of clamping jaw 4 and adapter sleeve 9 to convenient to detach changes clamping jaw 4, has improved the practicality of device greatly.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a carbon brush mill flour chamfer automation equipment which characterized in that: comprises a table body (1), a vibration disc hopper (2) is installed on one side of the top of the table body (1), the other side of the top of the table body (1) is connected with a moving table (6), a fixed table (3) is fixed between the moving table (6) and the vibration disc hopper (2) on the top of the table body (1), a controller (15) is installed on one side of the table body (1), a guide plate (13) is connected on one side of the fixed table (3), a material receiving frame (16) is placed below the guide plate (13) close to the top of the table body (1), two hydraulic cylinders (20) are installed between the moving table (6) and the material receiving frame (16), a fixed plate (17) is fixed on the top of the two hydraulic cylinders (20) close to the guide plate (13), one of the two hydraulic cylinders (17) is provided with a first motor (11) on the top of the fixed plate (17), and the top of another fixed plate (17) is fixed with two second motors (12), the output shaft of first motor (11) runs through fixed plate (17) and installs abrasive disc (19), the output shaft of second motor (12) runs through fixed plate (17) and is connected with bistrique (18), mobile station (6) are close to the one end of fixed station (3) and install slide bar (8), and the both sides of mobile station (6) all are fixed with cylinder (7), the both ends of slide bar (8) all are connected with sliding sleeve (10), the one end of cylinder (7) is connected with sliding sleeve (10) through the support, the outer wall of slide bar (8) all is equipped with two adapter sleeves (9), two clamping jaw (4) are all installed to the lateral wall of adapter sleeve (9), and are connected with second spring (28) between adapter sleeve (9) and sliding sleeve (10).

2. The carbon brush grinding surface chamfering automation equipment according to claim 1, characterized in that: cavity groove (22) have been seted up to the inside of stage body (1), and one side of stage body (1) installs driving motor (5), there are lead screw (23) inside of cavity groove (22) through bearing swing joint, barrel (24) are installed to the outer wall of lead screw (23), and the one end of lead screw (23) is fixed with second runner (27), first runner (25) are installed to the output shaft of driving motor (5) extension to the inside one end of cavity groove (22), the cover is equipped with transmission band (26) between the outer wall of first runner (25) and second runner (27).

3. The carbon brush grinding surface chamfering automation equipment according to claim 1, characterized in that: connect the inside top of material frame (16) to install first spring (21), the top of first spring (21) is fixed with buffer board (14), stopper (32) are all installed to the both sides of buffer board (14), connect the inner wall both sides of material frame (16) all to offer with stopper (32) assorted spacing groove (31).

4. The carbon brush grinding surface chamfering automation equipment according to claim 1, characterized in that: a clamping block (30) is installed at one end, close to the connecting sleeve (9), of the clamping jaw (4), and a clamping groove (29) matched with the clamping block (30) is formed in one end, close to the clamping jaw (4), of the connecting sleeve (9).

5. The carbon brush grinding surface chamfering automation equipment according to claim 4, characterized in that: the inner wall of the clamping groove (29) is provided with a rubber pad, and the outer wall of the rubber pad is provided with an anti-slip groove.

6. The carbon brush grinding surface chamfering automation equipment according to claim 1, characterized in that: the bottom of the table body (1) is provided with a support, and the bottom of the support is fixed with a foot pad.

7. The carbon brush grinding surface chamfering automation device according to claim 2, characterized in that: the protective cover is installed on the outer wall of the driving motor (5), and the heat dissipation groove is formed in the outer wall of the protective cover.

8. The carbon brush grinding surface chamfering automation equipment according to claim 1, characterized in that: the soft pads are installed on two sides of the inner wall of the clamping jaw (4), and the outer wall of each soft pad is provided with a bulge.

9. The carbon brush grinding surface chamfering automation device according to claim 2, characterized in that: the first rotating wheel (25) is positioned below the second rotating wheel (27), and the outer diameter of the first rotating wheel (25) is equal to that of the second rotating wheel (27).

10. A processing method of automatic equipment for chamfering a grinding surface of a carbon brush is characterized by comprising the following steps: the method comprises the following steps:

placing a carbon brush in a vibrating disc hopper (2) and starting up;

the vibrating disc hopper (2) conveys the carbon brushes and sends the carbon brushes to the fixed table (3);

the clamping jaw (4) clamps the carbon brush, the moving platform (6) drives the clamping jaw (4) to move along the guide plate (13), the upper surface of the carbon brush is subjected to surface grinding processing through the grinding disc (19) during the process, and the end part of the carbon brush is subjected to chamfer grinding processing through the grinding head (18);

after the chamfer grinding processing is finished, the moving platform (6) drives the clamping jaw (4) to move to the upper part of the material receiving frame (16), and the clamping jaw (4) loosens the carbon brush to enable the carbon brush to fall into the material receiving frame (16);

and finishing the processing once, and then repeating the steps from one step to four to process the next carbon brush.

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