CN117140325A - Polishing machine capable of accurately positioning - Google Patents

Abstract

The application discloses a polishing machine capable of accurately positioning, which comprises a polishing device, an objective table and a positioning mechanism, wherein the positioning mechanism comprises an abutting block, a driving frame and a positioning cylinder body, the objective table is provided with a through hole, the abutting block is uniformly distributed in the through hole, the upper end of the abutting block is provided with a pressing part protruding towards the outer side direction of the objective table, the side wall of the lower end of the abutting block is provided with an inclined groove which is arranged in a penetrating manner, the inclined groove is gradually inclined towards the direction of the pressing part from bottom to top, the driving frame comprises a driving plate, a connecting rod and a connecting seat, two ends of the connecting rod are respectively connected with the driving plate and the connecting seat, the driving plate is obliquely arranged and is connected with the inclined groove in a sliding fit manner, and the connecting seat is connected with the power output end of the positioning cylinder body. Compared with the prior art, the application can accurately position the workpiece, avoid the offset of the workpiece and improve the polishing quality of the workpiece.

Description

Polishing machine capable of accurately positioning

Technical Field

The application relates to the technical field of polishing machine equipment, in particular to a polishing machine capable of being accurately positioned.

Background

With the development of social science, new energy automobiles are more and more popular, and sales of the new energy automobiles also show increasing trend. The driving motor is one of main power source components of the pure electric vehicle, and mainly converts electric energy into mechanical energy and feeds back running state information of the driving motor to the MCU. And under the condition of decelerating, downhill or braking of the electric automobile, the mechanical energy of the automobile can be converted into electric energy to be stored in the storage battery.

The traditional driving motor comprises a shell, a stator, a rotor and an output rotating shaft, wherein the stator, the rotor and the output rotating shaft are arranged in the shell, the shell of the motor is mostly cast and formed through aluminum materials, an opening for installation is formed in one end face of the shell, a through hole for the output rotating shaft to extend out is formed in the other end face of the shell, a plurality of flaws and burrs are formed in the inner surface and the outer surface of the cast and formed shell, the stator and the rotor are prevented from being scratched by the shell in order to improve the aesthetic feeling of the outer surface of the shell, and the inner surface and the outer surface of the shell are required to be polished. In the polishing process of the shell, the shell needs to be positioned and fixed, so that the shell is prevented from shifting during polishing, and the polishing quality of the shell is improved.

In chinese patent application publication No. CN116749088A, a motor housing processing device is disclosed, and the four pressing portions contact with the inner wall of the housing, so as to achieve positioning and fixing. However, the pressing part is mainly driven by different gears and racks, and in long-term work, the gears and the racks are worn and offset, so that positioning errors are unavoidable, and the positioning of the workpiece is not accurate enough, and the polishing quality of the workpiece is affected. In addition, the pressing portion can only limit the movement of the housing in the horizontal direction, but cannot limit the movement of the housing in the vertical direction, so that the housing may shake and tilt during polishing, and polishing quality of the housing is further affected.

In view of the above, the present inventors have made intensive studies to solve the above problems, and have made the present application.

Disclosure of Invention

The application mainly aims to provide a polishing machine capable of accurately positioning workpieces, which can accurately position the workpieces, avoid the offset of the workpieces and improve the polishing quality of the workpieces.

In order to achieve the above object, the solution of the present application is:

the utility model provides a burnishing machine that can accurately fix a position, includes burnishing device, objective table and positioning mechanism, positioning mechanism is including supporting kicking block, actuating frame and location cylinder body, the objective table is equipped with the through-hole, it evenly divides the setting in the through-hole to support kicking block, the upper end that supports the kicking block is equipped with the convex portion that compresses tightly to objective table outside direction, the lower extreme lateral wall that supports the kicking block is equipped with the inclined groove that runs through the setting, the inclined groove is by supreme slope towards compressing tightly portion direction gradually down, the actuating frame includes actuating plate, connecting rod and connecting seat, actuating plate and connecting seat are connected respectively at the both ends of connecting rod, the actuating plate slope sets up and is connected with inclined groove sliding fit, the connecting seat is connected with the power take off end of location cylinder body.

Further, positioning mechanism still includes reset piece, reset lever and spring, be equipped with the spacing groove on the back lateral wall of supporting the kicking block, be equipped with the limiting plate on the spacing groove, the reset lever is installed on the reset piece, the front end of reset lever stretches into the spacing inslot and slides, the front end of reset lever is equipped with the stopper with the limiting plate butt, the spring housing is established on the reset lever, the both ends of spring respectively with reset piece and support the kicking block butt.

Further, a telescopic rod is arranged between the reset block and the connecting seat.

Further, the propping block comprises an upper block body and a lower block body, wherein a guide sliding groove is formed in the lower block body, a guide sliding block is arranged at the lower end of the upper block body, and the guide sliding block is in sliding fit with the guide sliding groove.

Further, the upper surface of the compressing part is provided with an arc-shaped guide sliding surface, and a rounding angle is arranged between the arc-shaped guide sliding surface and the lower surface of the compressing part.

Further, the side face of the upper block body is provided with an arc-shaped propping face.

Further, the lower extreme of objective table is equipped with the base, the inside accommodation chamber that is used for installing positioning mechanism that is equipped with of base, be equipped with outer ring gear on the base, the side of base is equipped with rotation motor, rotation motor's power take off end is equipped with drive gear, drive gear and outer ring gear meshing transmission.

Further, a vertical chute is arranged on the inner side wall of the accommodating cavity, a sliding boss protruding horizontally outwards is arranged at the lower end of the lower block body, and the sliding boss is in matched sliding connection with the vertical chute.

Further, the driving plate is provided with fixing plates at two sides of the propping block.

Compared with the prior art, the application has the beneficial effects that the plurality of propping blocks can be driven by one positioning cylinder body to synchronously perform horizontal movement and lifting movement, and when the propping blocks horizontally outwards move, the arc-shaped propping surface butts against the perforation of the shell, so that the shell is accurately positioned. Then the pushing block moves downwards to enable the pressing part to press and fix the shell on the object stage, so that the shell is fixed more firmly, and then the polishing device polishes the inner surface and the outer surface of the shell. Further improve the polishing quality of shell, can realize automatic feeding and accurate fixed shell of location simultaneously, effectively reduce manual operation, reach the effect of saving the cost.

Drawings

Fig. 1 is a schematic perspective view of the outline structure of the present application.

Fig. 2 is a perspective view of the outline structure of the stage and the positioning mechanism.

Fig. 3 is a schematic cross-sectional view of the positioning mechanism in operation.

FIG. 4 is a perspective view of another configuration of the stage and positioning mechanism.

Fig. 5 is a schematic perspective view of the positioning mechanism.

Fig. 6 is a schematic diagram of the connection structure of the upper block and the lower block.

Fig. 7 is a partial enlarged view of the area a in fig. 3.

Fig. 8 is a cross-sectional side view of the jaw mechanism.

Fig. 9 is a perspective view showing the outline structure of the jaw mechanism.

Fig. 10 is a cross-sectional top view of the jaw mechanism.

In the figure: 1. a polishing device; 11. a bottom plate; 111. a guide groove; 2. an objective table; 21. a through hole; 22. a base; 23. a receiving chamber; 24. an outer ring gear; 25. a rotating motor; 26. a vertical chute; 3. a positioning mechanism; 31. a pushing block; 311. an upper block; 3111. a guide block; 312. a lower block; 3121. a guide chute; 313. a pressing part; 314. an inclined groove; 315. a limit groove; 316. an arc-shaped sliding guide surface; 317. an arc-shaped propped surface; 32. a drive rack; 321. a driving plate; 3211. a fixing plate; 322. a connecting rod; 323. a connecting seat; 33. positioning a cylinder body; 34. a reset block; 35 reset lever; 36. a spring; 37. a telescopic rod; 4. a jaw mechanism; 41. a moving rack; 411. a connecting rod section; 412. a guide plate; 42. a first jaw; 43. a second jaw; 431. a main claw body; 4311. a mounting groove; 4312. a threaded hole; 432. a chuck; 433. a plug-in part; 4331. mounting the protruding blocks; 4332. a mating hole; 434. a fixing bolt; 441. a first screw rod; 442. a first driving motor; 451. a second driving motor; 452. and a second screw rod.

Detailed Description

In order to further explain the technical scheme of the application, the application is explained in detail by specific examples.

As shown in fig. 1 to 10, a polishing machine capable of being precisely positioned comprises an equipment rack, a polishing device 1, an objective table 2 and a positioning mechanism 3, wherein the polishing device 1 is arranged on the equipment rack, and the polishing device 1 can be a multi-shaft polishing device which is conventionally used in the market. The positioning mechanism 3 comprises a propping block 31, a driving frame 32 and a positioning cylinder 33, a through hole 21 for the propping block 31 to move is arranged at the central position of the objective table 2, and the propping block 31 is uniformly distributed in the through hole 21 around the central axis of the objective table 2. The propping block 31 comprises an upper block 311 and a lower block 312, the lower block 312 is provided with a guide slide slot 3121, the lower end of the upper block 311 is provided with a guide slide block 3111, and the guide slide block 3111 is in sliding fit with the guide slide slot 3121, so that the upper block 311 and the lower block 312 can slide horizontally relatively. The upper end of supporting kicking block 31 is equipped with the compressing tightly portion 313 that is protruding to objective table 2 outside direction, compressing tightly portion 313's lower surface and shell contact, be used for compressing tightly the shell downwards, be equipped with the inclined groove 314 that transversely runs through the setting on the lower block 312 lateral wall of supporting kicking block 31, inclined groove 314 is by supreme gradually towards compressing tightly portion 313 direction slope down, drive frame 32 includes drive plate 321, connecting rod 322 and connecting seat 323, in this embodiment, it is equipped with four to support kicking block 31, consequently drive plate 321 also corresponds to be equipped with four, the two liang of perpendicular connection of four drive plate 321 forms square frame construction, drive plate 321 and connecting seat 323 are connected respectively at the both ends of connecting rod 322, connecting rod 322 can further strengthen the structural strength of drive frame 32. The drive plate 321 inclines to set up the rectangle structure that makes the cross section of drive plate 321 be the slope setting, and drive plate 321 is connected with slope groove 314 sliding fit, and drive plate 321 is being located the both sides that support kicking block 31 and installing fixed plate 3211, and fixed plate 3211 can avoid supporting kicking block 31 left and right sides sideslip, plays spacing effect. The connecting base 323 is connected with the power output end of the positioning cylinder 33.

In this embodiment, the positioning mechanism 3 further includes a reset block 34, a reset rod 35 and a spring 36, a limit groove 315 is provided on the rear sidewall of the propping block 31, a limit plate is provided on the limit groove 315, the reset rod 35 is mounted on the reset block 34, the front end of the reset rod 35 stretches into the limit groove 315 to slide, a limit block propping against the limit plate is provided at the front end of the reset rod 35, the spring 36 is sleeved on the reset rod 35, two ends of the spring 36 respectively propped against the reset block 34 and the propping block 31, and a telescopic rod 37 is provided between the reset block 34 and the connecting seat 323. After adopting above-mentioned structure, spring 36 can drive to support the ejector pad 31 outside direction and slide to support the perforation lateral wall of shell, play the effect of accurate location.

In this embodiment, the upper surface of the pressing portion 313 is provided with an arc-shaped sliding guiding surface 316, a rounded corner is arranged between the arc-shaped sliding guiding surface 316 and the lower surface of the pressing portion 313, the side surface of the upper block 311 is provided with an arc-shaped supporting top surface 317, and rubber pads are arranged on the arc-shaped supporting top surface 317 and the lower surface of the pressing portion 313, so that protection and skid resistance effects are achieved. When the housing is fixed downward on the stage 2 by a manipulator or by hand, the perforated side wall is first abutted against the arc-shaped sliding guide surface 316, so that each upper block 311 compresses the spring 36 to move toward the inner side of the stage 2, and then the end surface of the housing is moved to the lower side of the abutment block 31 by rounding guiding. After the abutment block 31 passes through the perforation of the outer casing, the upper block 311 moves to the outer side direction of the stage 2 under the elastic force of the spring 36, so that the arc-shaped abutment surface 317 is in abutting contact with the perforated sidewall, thereby positioning the outer casing.

In this embodiment, the lower end of the objective table 2 is provided with a base 22, the base 22 is rotatably connected with the equipment rack, a containing cavity 23 for installing the positioning mechanism 3 is provided inside the base 22, an outer gear ring 24 is provided on the base 22, a rotating motor 25 is provided on a side edge of the base 22, a driving gear is provided at a power output end of the rotating motor 25, and the driving gear is meshed with the outer gear ring 24 for transmission. After adopting above-mentioned structure, through the outer ring gear 24 of rotation motor 25 drive to drive base 22 and objective table 2 rotation, make objective table 2 can drive the shell and rotate, conveniently change the polishing angle of work piece.

Specifically, be equipped with vertical spout 26 on the inside wall of holding chamber 23, the lower extreme of lower block 312 is equipped with outside horizontal convex slip boss, slip boss and vertical spout 26 cooperation sliding connection, slip boss and vertical groove cooperation can play spacing effect to supporting kicking block 31.

As shown in fig. 3, in the standby state, the lower end of the abutment block 31 is supported by the driving plate 321, when the driving plate 321 moves upward in the inclined groove 314, the abutment block 31 gradually moves horizontally in the inward direction, and when the abutment block 31 moves in the inward direction, the spring 36 is compressed, so that the spring force of the spring 36 gradually increases, when the spring force of the spring 36 is equal to the force with which the abutment block 31 slides inward, the driving plate 321 stops sliding upward in the inclined groove 314, and at this time, the abutment block 31 is in a state of balanced stress. The positioning cylinder can drive the connecting seat 323 to lift, so as to drive the supporting block 31 to synchronously lift.

When the shell is positioned and fixed, the shell moves downwards above the objective table 2 through a mechanical arm or a manual work, the perforated side wall is firstly propped against the arc-shaped guide sliding surface 316, so that each upper block 311 compresses the spring 36 to move towards the inner side direction of the objective table 2, and then the end surface of the shell moves to the lower side of the propping block 31 through rounding guiding. When the abutment block 31 passes through the through hole of the housing, the upper block 311 moves to the outer side of the stage 2 under the action of the spring force of the spring 36, so that the arc-shaped abutment surface 317 is in abutting contact with the side wall of the through hole, thereby positioning the housing, and the horizontal movement of the upper block 311 is also limited. Then the positioning cylinder drives the connecting seat 323 to move downwards, so as to drive the driving plate 321 to move downwards in the inclined groove 314, at the moment, the lower block 312 gradually moves outwards until the side wall of the lower block 312 abuts against the side wall of the accommodating cavity 23, the lower block 312 stops moving horizontally, and then the positioning cylinder can pull the lower block 312 and the upper block 311 to move downwards together, so that the lower surface of the pressing part 313 presses the end surface of the shell on the objective table 2, and accurate positioning and fixing of the shell are realized. The polishing device 1 can polish the shell, and meanwhile, the rotating motor 25 can drive the object stage 2 to rotate so as to adjust the angle and the direction of the workpiece.

After the shell is processed, the positioning cylinder 33 drives the connecting seat 323 to move upwards, the connecting seat 323 drives the driving plate 321 to slide upwards in the inclined groove 314, so that the lower block 312 is driven to move inwards, when the side walls of the guide sliding groove 3121 and the guide sliding block 3111 are contacted with each other, the lower block 312 pushes the upper block 311 to translate and rise together in the inwards direction until the elastic force of the spring 36 is increased to be equal to the thrust of the lower block 312, the supporting block 31 stops moving horizontally, at the moment, the upper block 311 is separated from the shell, and the upper block 311 synchronously moves inwards to provide stepping down for perforation, so that the shell is conveniently taken out upwards by a mechanical arm or a manual work.

Compared with the prior art, the application has the beneficial effects that the plurality of propping blocks 31 can be driven by one positioning cylinder body 33 to synchronously perform horizontal movement and lifting movement, and when the propping blocks 31 horizontally outwards move, the arc-shaped propping surfaces 317 prop against the perforation of the shell, so that the shell is accurately positioned. Then, the pressing block 31 moves downward to press and fix the housing on the stage 2 by the pressing portion 313, thereby fixing the housing more firmly, and then the polishing apparatus 1 performs polishing processing on the inner and outer surfaces of the housing. Further improve the polishing quality of shell, can realize automatic feeding and accurate fixed shell of location simultaneously, effectively reduce manual operation, reach the effect of saving the cost.

In order to facilitate clamping of workpieces, the application is also provided with a clamping jaw mechanism 4, wherein the clamping jaw mechanism 4 comprises a movable frame 41, a first clamping jaw 42, a second clamping jaw 43, a first driving mechanism and a second driving mechanism, and the front end of the first clamping jaw 42 is provided with an arc clamping part which is used for clamping arc-shaped workpieces. The polishing device 1 comprises a bottom plate 11, the object stage 2 is arranged on the bottom plate 11, the movable frames 41 are symmetrically arranged on two sides of the object stage 2, the lower ends of the movable frames 41 are in sliding connection with the bottom plate 11, the first driving mechanism is arranged on the bottom plate 11 and drives the movable frames 41 to be close to or separated from each other, the second clamping jaws 43 and the second driving mechanism are arranged on the movable frames 41, the second clamping jaws 43 are arranged on two sides of the movable frames 41, and the second driving mechanism drives the second clamping jaws 43 to be close to or separated from each other.

In this embodiment, the first driving mechanism includes a first screw rod 441 and a first driving motor 442, a guiding groove 111 is disposed on the bottom plate 11, the lower end of the moving frame 41 is embedded in the guiding groove 111 to slide, the first screw rod 441 is rotatably connected in the guiding groove 111, the first driving motor 442 is disposed on the floor, the first driving motor 442 drives the first screw rod 441 to rotate, the lower ends of the moving frames 41 on two sides are respectively in threaded connection with two ends of the first screw rod 441, and two ends of the first screw rod 441 are provided with thread segments with opposite thread directions. With the above structure, the first driving motor 442 drives the first screw 441 to rotate forward, thereby driving the moving frames 41 at both sides to approach each other, and driving the first clamping jaw 42 to clamp the workpiece. When the workpiece is taken, the first driving motor 442 drives the first screw rod 441 to turn over, so that the moving frames 41 at two sides are driven to be separated from each other, and the first clamping jaw 42 can loosen the workpiece.

In this embodiment, the moving frame 41 is provided with a connecting rod section 411, the front end of the connecting rod section 411 is connected with the first clamping jaw 42, a guide plate 412 which is arranged in parallel is arranged on the connecting rod section 411, a guide gap is arranged between the guide plates 412, the second driving mechanism comprises a second driving motor 451 and a second screw rod 452, the second driving motor 451 is arranged on the connecting rod section 411, two power output ends of the second driving motor 451 are connected with the second screw rod 452, the screw thread directions of the second screw rods 452 on two sides are opposite, the rear end of the second clamping jaw 43 is in screw connection with the second screw rod 452, the front end of the second clamping jaw 43 passes through the guide gap, and the guide gap can guide the second clamping jaw 43, so that the second clamping jaw 43 moves horizontally more stably. In order to enable the second jaw 43 to pass through the first jaw 42 and move over the object table 2, the arcuate gripping portion is provided with a relief hole through which the second jaw 43 passes. After the structure is adopted, the second driving motor 451 can drive the second screw rods 452 at two ends to rotate forward or reversely, so that the second clamping jaw 43 is driven to horizontally move along the axial direction of the second screw rods 452, and the second clamping jaw 43 can clamp or loosen the side wall of the rectangular workpiece.

In this embodiment, in order to facilitate the disassembly and assembly of the second clamping jaw 43, the second clamping jaw 43 includes a main jaw body 431, a chuck 432, an insertion portion 433 and a fixing bolt 434, a mounting groove 4311 is provided on the main jaw body 431, a threaded hole 4312 penetrating the mounting groove 4311 is provided on a side wall of the mounting groove 4311, a mounting protrusion 4331 is provided at a rear end of the insertion portion 433, the mounting protrusion 4331 is inserted into the mounting groove 4311 and connected, a mating hole 4332 is provided on a side wall of the mounting protrusion 4331, and the fixing bolt 434 penetrates through the threaded hole 4312 and the mating hole 4332 and is in threaded connection with the threaded hole 4312, and the chuck 432 is rotationally connected with a front end of the insertion portion 433. After the structure is adopted, when the arc-shaped workpiece is processed, the first clamping jaw 42 can be used for directly clamping the workpiece without installing the inserting connection part 433. When the rectangular workpiece is processed, the mounting lug 4331 is inserted into the mounting groove 4311, then the fixing bolt 434 passes through the threaded hole 4312 and the matching hole 4332, the plug-in part 433 and the main claw body 431 are fixedly connected together, and then the chuck 432 is driven by the second driving mechanism to clamp the side wall of the rectangular workpiece to realize fixation. Compared with the prior art, the structure enables the second clamping jaw 43 to be assembled and disassembled more conveniently, is more flexible to use, and greatly enhances the application range of the application.

Compared with the prior art, the application has the beneficial effects that when the arc-shaped workpiece is processed, the inserting part 433 can be separated from the main claw body 431, the workpiece is fixed by the first clamping jaw 42, and the arc-shaped workpiece is clamped and fixed by the arc-shaped clamping part and then polished. When processing a rectangular workpiece, a worker fixes the insertion portion 433 to the main jaw 431, clamps and fixes the rectangular workpiece by the chuck 432, and then performs polishing. The polishing device can fix and polish workpieces with various shapes, is convenient to operate and is more flexible to use.

The above examples and drawings are not intended to limit the form or form of the present application, and any suitable variations or modifications thereof by those skilled in the art should be construed as not departing from the scope of the present application.

Claims (9)

1. But burnishing machine of accurate location, a serial communication port, including burnishing device (1), objective table (2) and positioning mechanism (3), positioning mechanism (3) are including supporting kicking block (31), drive frame and location cylinder body (33), objective table (2) are equipped with through-hole (21), it sets up in through-hole (21) to support the even subsection of kicking block (31), the upper end that supports kicking block (31) is equipped with to objective table (2) outside direction convex clamping part (313), the lower extreme lateral wall that supports kicking block (31) is equipped with the inclined groove that runs through the setting, inclined groove is by supreme slope towards clamping part (313) direction gradually down, the drive frame includes drive plate, connecting rod (322) and connecting seat (323), drive plate and connecting seat (323) are connected respectively at the both ends of connecting rod (322), the drive plate slope sets up and is connected with inclined groove sliding fit, connecting seat (323) are connected with the power take off end of location cylinder body (33).

2. The polishing machine capable of accurately positioning according to claim 1, wherein the positioning mechanism (3) further comprises a reset block (34), a reset rod (35) and a spring (36), a limit groove is formed in the rear side wall of the propping block (31), a limit plate is arranged on the limit groove, the reset rod (35) is arranged on the reset block (34), the front end of the reset rod (35) stretches into the limit groove to slide, a limit block propping against the limit plate is arranged at the front end of the reset rod (35), the spring (36) is sleeved on the reset rod (35), and two ends of the spring (36) respectively prop against the reset block (34) and the propping block (31).

3. A precisely positioned polishing machine as in claim 2, wherein a telescoping rod (37) is provided between the reset block (34) and the connection base (323).

4. A polishing machine capable of being precisely positioned according to claim 3, wherein the supporting block (31) comprises an upper block body (311) and a lower block body (312), a guide chute (3121) is arranged on the lower block body (312), a guide slide block (3111) is arranged at the lower end of the upper block body (311), and the guide slide block (3111) is in sliding fit with the guide chute (3121).

5. The polishing machine capable of being precisely positioned according to claim 4, wherein the upper surface of the pressing part (313) is provided with an arc-shaped sliding guiding surface, and a rounding angle is arranged between the arc-shaped sliding guiding surface and the lower surface of the pressing part (313).

6. A precisely positioned polishing machine as in claim 5, characterized in that the lateral surface of said upper block (311) is provided with an arched abutment surface.

7. The polishing machine capable of being precisely positioned according to claim 6, wherein a base (22) is arranged at the lower end of the objective table (2), a containing cavity (23) for installing the positioning mechanism (3) is arranged inside the base (22), an outer gear ring (24) is arranged on the base (22), a rotating motor (25) is arranged on the side edge of the base (22), a driving gear is arranged at the power output end of the rotating motor (25), and the driving gear is in meshed transmission with the outer gear ring (24).

8. The polishing machine capable of being accurately positioned according to claim 7, wherein the inner side wall of the accommodating cavity (23) is provided with a vertical chute (26), the lower end of the lower block (312) is provided with a sliding boss protruding horizontally outwards, and the sliding boss is in matched sliding connection with the vertical chute (26).

9. A precisely positioned polishing machine as in claim 8, wherein the drive plate is provided with fixed plates on both sides of the abutment block (31).