CN114346843A

CN114346843A - Polishing machine for variable-pitch screw

Info

Publication number: CN114346843A
Application number: CN202111646930.0A
Authority: CN
Inventors: 丁根生; 杜海勇; 刘胜
Original assignee: Hefei Zhongtong Polishing Machinery Co ltd
Current assignee: Hefei Zhongtong Polishing Machinery Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-04-15

Abstract

The invention relates to a polishing machine for a variable-pitch screw, which comprises a triangular claw and a pneumatic thimble which are positioned at two ends of a rack, wherein the triangular claw is connected with the pneumatic thimble through the screw, one end of a rotary table on the triangular claw is fixedly connected to a first motor, a sliding plate arranged on the rack is arranged above the screw, a second motor is fixedly arranged on the sliding plate, a transverse gear plate arranged on the top surface of the rack is in meshing transmission with a rotary gear on the second motor, first air cylinders are fixedly arranged at two ends of the side surface of the sliding plate, a piston rod on each first air cylinder is fixed on a cover plate, and a gear groove is formed in the outer wall of the cover plate and is in meshing transmission with a vertical gear plate on the side plate. Has the advantages that: the invention can be used for polishing the screw with variable pitch, can also be used for finely polishing the surfaces of pipe fittings and shaft parts, and can quickly improve the surface roughness of products.

Description

Polishing machine for variable-pitch screw

Technical Field

The invention relates to the technical field of polishing and grinding devices, in particular to a polishing machine for a variable-pitch screw.

Background

Polishers, also known as grinders, are often used for mechanical grinding, polishing, and waxing. The working principle is as follows: the motor drives the sponge or wool polishing disc arranged on the polishing machine to rotate at a high speed, and the polishing disc and the polishing agent act together and rub the surface to be polished, so that the aims of removing paint surface pollution, oxide layer and shallow mark can be achieved. The rotation speed of the polishing disk is generally 1500-3000r/min, and is mostly continuously variable, and can be adjusted at any time during construction according to requirements.

The key to the operation of the polisher is to try to achieve the maximum polishing rate in order to remove the damaged layer created during polishing as quickly as possible. At the same time, the polishing damage layer does not affect the finally observed tissue, i.e. false tissue is not caused. The former requires the use of a coarser abrasive to ensure a greater polishing rate to remove the abraded damaged layer, but the polished damaged layer is also deeper; the latter requires to use the finest material, makes the polishing damage layer less, and nevertheless polishing rate is low, and the screw rod is generally only carried out single equidistant pitch when polishing, and the effect of polishing is not enough even comprehensive, need change different clamping device to the screw rod of equidimension not simultaneously, has influenced work efficiency, is unfavorable for product quality's promotion simultaneously.

Disclosure of Invention

The invention aims to provide a polishing machine for a variable-pitch screw, which can be used for polishing the variable-pitch screw, finely polishing the surface of a workpiece and quickly improving the surface roughness of a product, and is realized by the following scheme.

In order to achieve the above purpose, the invention adopts the technical scheme that: a polishing machine for a variable-pitch screw is characterized by comprising a triangular claw and a pneumatic ejector pin, wherein the triangular claw and the pneumatic ejector pin are positioned at two ends of a rack and connected through a screw, one end of a rotary disc on the triangular claw is fixedly connected to a first motor, a sliding plate arranged on the rack is arranged above the screw, a second motor is fixedly arranged on the sliding plate, a transverse gear plate arranged on the top surface of the rack is in meshing transmission with a rotating gear on the second motor, first air cylinders are fixedly arranged at two ends of the side surface of the sliding plate, a piston rod on each first air cylinder is fixed on a cover plate, and a gear groove is formed in the outer wall of the cover plate and is in meshing transmission with a vertical gear plate on each side plate;

the water pump is characterized in that a third motor is fixedly mounted on one side of the cover plate, an output shaft of the third motor is fixed on the driving wheel, the first driven wheel and the second driven wheel are in circulating transmission through abrasive belts and are arranged in a triangular shape, the driving wheel, the first driven wheel and the second driven wheel are arranged in a protective cover connected with the cover plate, a nozzle connected with a water tank is fixedly mounted on one side, close to the first driven wheel, of the protective cover, the water tank is connected with the nozzle through a guide pipe on the water pump, and a water guide groove connected with the water tank is formed in the length direction of the rack.

Furthermore, a connecting rod fixed on the sliding block is installed at one end of the triangular claw, a guide groove is movably connected to the inner wall of the sliding block close to the rotary table, an arc-shaped groove is formed in one end of the connecting rod and is movably connected to the roller through a positioning pin, a driving device is fixedly installed at the center of the roller through a rotating shaft, and a rolling groove matched with the pneumatic thimble is connected to one end of the pneumatic thimble close to the outer wall of the rack.

Furthermore, a second cylinder is fixedly mounted on the protective cover, a first driven wheel is fixedly mounted on a piston rod of the second cylinder through a U-shaped support, and a limiting annular groove arranged on the protective cover is formed in one end of the outer portion of the U-shaped support.

Further, the first cylinder and the cover plate are kept in parallel, and the joint of the first cylinder and the cover plate is provided with a mounting hole and is locked and fixed through a bolt assembly.

Further, fixed mounting has accurate filter screen on the water tank, and accurate filter screen one end integrated into one piece is connected with the pull ring of arranging in on the water tank outer wall, and accurate filter screen is connected with the spout along water tank inner wall length direction, accurate filter screen outer wall one end is close to water tank outer wall and is connected with the sealing washer all around.

Furthermore, the cover plate further comprises a fourth motor located on the top surface of the cover plate, an output shaft on the fourth motor is connected with a reversing wheel in a transmission mode, and one end of the reversing wheel is fixedly provided with a protective cover through a movable shaft.

The invention has the technical effects that:

at first fix the work piece head at the work piece rotation front end position, work piece holder adopts that the mode that the triangle claw is fixed is connected, the form that starts the thimble that the rear end adopted promotes to be connected, after fixing the work piece, pitch and the starting point according to the screw rod drawing direct input screw rod, the terminal point coordinate, the work piece starting point is found to the bistrique promptly, automatic the beginning of polishing according to the pitch that sets up, the bistrique device can carry out the translation, go up and down and the rotation regulation in the plane, thereby be convenient for carry out diversified displacement and polish, the benefit of this machine can be used for polishing pitch-variable's screw rod, also can be to the pipe fitting, axle type part surface finish polishing, can improve product roughness fast.

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 right hand version of the present invention;

FIG. 4 is a schematic view of the connection of the slider and the connecting rod of the present invention;

fig. 5 is a front view of fig. 4 of the present invention.

Reference numerals: 1-a frame; 2-triangular claws; 3-a pneumatic thimble; 4-a turntable; 5-a first motor; 6-a sliding plate; 7-a second motor; 8-transverse gear plate; 9-a first cylinder; 10-a cover plate; 11-side plate; 12-a vertical gear plate; 13-a third motor; 14-a driving wheel; 15-a first driven wheel; 16-a second driven wheel; 17-abrasive band; 18-a shield; 19-a water tank; 20-a slide block; 21-a connecting rod; 22-a roller; 23-an arc-shaped groove; 24-a second cylinder; 25-U-shaped brackets; 26-fourth motor.

Detailed Description

Referring to the attached drawings 1-5, the polishing machine for the variable-pitch screw comprises a triangular claw 2 and a pneumatic thimble 3 which are positioned at two ends of a rack 1, wherein the triangular claw 2 and the pneumatic thimble 3 are connected through a screw, one end of a rotary disc 4 on the triangular claw 2 is fixedly connected to a first motor 5, a sliding plate 6 arranged on the rack 1 is arranged above the screw, a second motor 7 is fixedly arranged on the sliding plate 6, a rotary gear on the second motor 7 is in meshing transmission with a transverse gear plate 8 arranged on the top surface of the rack 1, two ends of the side surface of the sliding plate 6 are fixedly provided with first air cylinders 9, piston rods on the first air cylinders 9 are fixed on a cover plate 10, and the outer wall of the cover plate 10 is provided with gear grooves and is in meshing transmission with a vertical gear plate 12 on a side plate 11;

a third motor 13 is fixedly installed on one side of the cover plate 10, an output shaft of the third motor 13 is fixed on a driving wheel 14, the driving wheel 14, a first driven wheel 15 and a second driven wheel 16 are in circulating transmission through an abrasive belt 17 and are arranged in a triangular shape, the driving wheel 14, the first driven wheel 16 and the second driven wheel 17 are all arranged in a protective cover 18 connected with the cover plate 10, a nozzle connected with a water tank 19 is fixedly installed on one side, close to the first driven wheel 16, of the protective cover 18, the water tank 19 is connected with the nozzle through a guide pipe on a water pump, and a water guide groove connected with the water tank 19 is formed in the length direction of the rack 1.

The specific embodiment of this scheme is, install on the tie rod 21 fixed on slide block 20 on one end of the said triangular claw 2, the said slide block 21 is close to the inner wall swing joint of the rotary table 4 and has guide slots, one end of the said tie rod 21 has arc grooves 23 placed on gyro wheel 22 through the locating pin swing joint, and gyro wheel 22 centre is fixedly fitted with the drive unit through the spindle, and the pneumatic thimble 3 one end is close to and connected with the rolling groove adapted to it on the outer wall of stander 1, the triangular claw 2 is through the tie rod 21 at the same time inward or outward movement, thus facilitate to clamp and fix the threaded spindle of different size, in addition, different from the clamping mechanism of general triangular claw, the traditional clamping mechanism of triangular claw is through the meshing transmission of the gear then let the drive shaft rotate, because there are different radius circular orbits on one side of the drive shaft, when the slide block on the tie rod slides, can let the connecting rod carry out the inside or outside promotion operation of while when the transmission shaft rotates, thereby press from both sides tightly the object, traditional clamping mechanism is comparatively complicated, low transmission efficiency, this patent is direct through setting up arc wall 23 on gyro wheel 22, connecting rod 21 swing joint is on arc wall 23, because the different curvature radius of arc wall 23, slider 20 on the connecting rod 21 can carry out inside or outside translation motion in the guide slot of carousel 4, thereby directly press from both sides tight operation to the object, clamping mechanism is comparatively simple reasonable, can effectively realize clamping work fast.

The specific embodiment of the scheme is that a second cylinder 24 is fixedly mounted on the protective cover 18, a first driven wheel 15 is fixedly mounted on a piston rod on the second cylinder 24 through a U-shaped support 25, a limiting annular groove arranged on the protective cover 18 is formed in one end of the outer portion of the U-shaped support 25, and the second cylinder 24 is mainly used for pushing the first driven wheel 15 to perform translational motion, so that tensioning adjustment is performed on the abrasive belt 17.

The specific embodiment of the scheme is that the first cylinder 9 and the cover plate 10 are kept in parallel arrangement, the joint of the two is provided with a mounting hole and locked and fixed through a bolt component, the water tank 19 is fixedly provided with a precision filter screen, one end of the precision filter screen is connected with a pull ring arranged on the outer wall of the water tank 19 in an integrated forming way, the precision filter screen is connected with a sliding groove along the length direction of the inner wall of the water tank 19, one end of the outer wall of the precision filter screen is close to the periphery of the outer wall of the water tank 19 and is connected with a sealing ring, in addition, the patent effectively cools the abrasive belt 17 during polishing operation through the arrangement of the water tank 19, thereby prolonging the processing time of workpieces, simultaneously sewage can be correspondingly collected through the precision filter screen, then the water body is cooled circularly, the effective utilization of resources is ensured, and the precision filter screen can be directly drawn out through the pull ring, the subsequent cleaning treatment work is convenient.

The concrete embodiment of this scheme does, still including the fourth motor 26 that is located apron 10 top surface, the output shaft transmission on the fourth motor 26 is connected with the reversing wheel, reversing wheel one end has guard shield 18 through loose axle fixed mounting, and fourth motor 26's setting mainly carries out the angular rotation with the bistrique device on the guard shield 18 to the convenient operation of polishing to the diversified of screw rod, second motor 7 drives bistrique device simultaneously and carries out translation motion, and drives the meshing transmission of apron 10 and vertical gear board 8 through first cylinder 9 during the lift of bistrique mechanism, can let bistrique mechanism carry out corresponding lift adjustment operation with this.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A polishing machine for a variable-pitch screw is characterized by comprising triangular claws (2) and pneumatic thimbles (3) which are positioned at two ends of a machine frame (1), the triangular claw (2) is connected with the pneumatic thimble (3) through a screw rod, one end of a turntable (4) on the triangular claw (2) is fixedly connected with a first motor (5), wherein, a sliding plate (6) arranged on the frame (1) is arranged above the screw rod, a second motor (7) is fixedly arranged on the sliding plate (6), a transverse gear plate (8) arranged on the top surface of the frame (1) is in meshing transmission with a rotating gear on the second motor (7), the two ends of the side surface of the sliding plate (6) are fixedly provided with a first cylinder (9), a piston rod on the first air cylinder (9) is fixed on a cover plate (10), and the outer wall of the cover plate (10) is provided with a gear groove and is in meshing transmission with a vertical gear plate (12) on a side plate (11);

a third motor (13) is fixedly mounted on one side of the cover plate (10), an output shaft of the third motor (13) is fixed on a driving wheel (14), the first driven wheel (15) and the second driven wheel (16) are in circulating transmission through an abrasive belt (17), the driving wheel (14), the first driven wheel (15) and the second driven wheel (16) are arranged in a triangular shape, the driving wheel (14), the first driven wheel (15) and the second driven wheel (16) are arranged outside a protective cover (18) connected with the cover plate (10), a nozzle connected with a water tank (19) is fixedly mounted on one side, close to the first driven wheel (16), of the protective cover (18), the water tank (19) and the nozzle are connected with a guide pipe on a water pump, and a water guide groove connected with the water tank (19) is formed in the length direction of the rack (1).

2. The polishing machine for the variable-pitch screw according to claim 1, wherein one end of the triangular claw (2) is provided with a connecting rod (21) fixed on a sliding block (20), the sliding block (21) is movably connected with a guide groove close to the inner wall of the rotating disc (4), one end of the connecting rod (21) is movably connected with an arc-shaped groove (23) arranged on the roller (22) through a positioning pin, the center of the roller (22) is fixedly provided with a driving device through a rotating shaft, and one end of the pneumatic thimble (3) is connected with a rolling groove matched with the pneumatic thimble on the outer wall close to the rack (1).

3. A polishing machine for a variable pitch screw according to claim 1, wherein a second cylinder (24) is fixedly mounted on the shield (18), a first driven wheel (15) is fixedly mounted on a piston rod of the second cylinder (24) through a U-shaped bracket (25), and a limiting annular groove arranged on the shield (18) is arranged at one end of the outside of the U-shaped bracket (25).

4. The polishing machine for the variable-pitch screw according to claim 1, wherein the first cylinder (9) and the cover plate (10) are kept in parallel arrangement, and the joint of the first cylinder and the cover plate is provided with a mounting hole and is locked and fixed through a bolt assembly.

5. The polishing machine for the variable-pitch screw according to claim 1, wherein a precision filter screen is fixedly installed on the water tank (19), one end of the precision filter screen is integrally connected with a pull ring arranged on the outer wall of the water tank (19), the precision filter screen is connected with a sliding groove along the length direction of the inner wall of the water tank (19), and one end of the outer wall of the precision filter screen is close to the outer wall of the water tank (19) and is connected with a sealing ring.

6. The polishing machine for the variable-pitch screw according to claim 1, further comprising a fourth motor (26) positioned on the top surface of the cover plate (10), wherein an output shaft of the fourth motor (26) is in transmission connection with a reversing wheel, and one end of the reversing wheel is fixedly provided with a shield (18) through a movable shaft.