CN214393534U

CN214393534U - Step grinding machine

Info

Publication number: CN214393534U
Application number: CN202023222227.0U
Authority: CN
Inventors: 忻宣良; 陈巧益
Original assignee: Ningbo Xiangsheng Machinery Co ltd
Current assignee: Ningbo Xiangsheng Machinery Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-10-15
Anticipated expiration: 2030-12-28

Abstract

The utility model belongs to the technical field of the grinding machine, a step grinding machine is provided, include: a work table; the fixing mechanism is arranged on the workbench and used for fixing the workpiece; the grinding mechanism is arranged on one side of the fixing mechanism and grinds the workpiece; the feeding mechanism is arranged on one side of the fixing mechanism and one side of the grinding mechanism and used for conveying the workpiece to the fixing mechanism to be clamped and fixed; and the moving mechanism is arranged at the lower end of the grinding mechanism and drives the grinding mechanism to move back and forth. Compared with the prior art, the utility model has the advantages of: utilize feeding mechanism to carry the work piece, fixed establishment presss from both sides tightly the work piece, grinding mechanism accomplishes the processing of work piece step face, and moving mechanism moves grinding mechanism according to the use needs simultaneously to whole journey carries out automated control through PLC, has improved machining efficiency, has improved the automation of production, has also avoided the workman to have the injured condition to take place in the maloperation.

Description

Step grinding machine

Technical Field

The utility model belongs to the technical field of the grinding machine, concretely relates to step grinding machine.

Background

The rotating shaft is widely applied to the field of mechanical transmission and machining, and parts mounted on the rotating shaft need high positioning requirements along with the continuous improvement of the requirement on machining precision, so that the most widely distributed step shafts on the market at present are used for positioning the parts on the step shafts by arranging a plurality of step surfaces on the shafts in order to meet the requirement.

The existing grinding machine for grinding the rotating shaft is a simple and common grinding machine, the grinding machine is only fixed by a single fixing sleeve and then is ground by a grinding wheel or is manually held for grinding, the coaxiality and surface straightness accuracy of the shaft ground by the method are low, high-precision machining of a step shaft on the rotating shaft cannot be met, and potential safety production hazards exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem to the current situation of prior art, and provide a step grinding machine.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a step grinder is provided, comprising: a work table;

the fixing mechanism is arranged on the workbench and used for fixing the workpiece;

the grinding mechanism is arranged on one side of the fixing mechanism and used for grinding the workpiece;

the feeding mechanism is arranged on one side of the fixing mechanism and one side of the grinding mechanism and is used for conveying the workpiece to the fixing mechanism to be clamped and fixed;

and the moving mechanism is arranged at the lower end of the grinding mechanism and drives the grinding mechanism to move back and forth.

In the step grinding machine, the fixing mechanism comprises a fixed seat arranged on the workbench and an elastic chuck arranged on one side of the fixed seat close to the grinding mechanism.

In the step grinding machine, the grinding mechanism comprises a motor, a power head and a grinding wheel connected to the outer end of the power head, the motor and the power head are arranged on the workbench through a motor fixing seat, the grinding wheel is fixed on the power head through a grinding wheel spindle, and the grinding wheel is located on one side close to the fixing mechanism.

In the step grinding machine, an inner protective cover and an outer protective cover are arranged on the outer side of the grinding wheel, the inner protective cover is positioned on the outer side of the grinding wheel, and the outer protective cover is positioned on the outer sides of the inner protective cover and the elastic chuck.

In the step grinder, the moving mechanism comprises a longitudinal moving assembly and a transverse moving assembly, and the longitudinal moving assembly and the transverse moving assembly drive the grinding mechanism to move back and forth relative to the fixing mechanism and the feeding mechanism.

In an above step grinding machine, the longitudinal movement assembly comprises a longitudinal moving plate connected to the lower end of a motor fixing seat and a guide rail fixing plate arranged at the lower end of the longitudinal moving plate, a moving cylinder is arranged on the longitudinal moving plate, one end of a telescopic rod of the moving cylinder is connected to the guide rail fixing plate, a sliding guide rail is arranged on the guide rail fixing plate, one side, away from the moving cylinder, of the guide rail fixing plate is provided with a damper and a limiting rod, and one end, close to the longitudinal moving plate, of the damper is longer than the limiting rod.

In foretell step grinding machine, the lateral shifting subassembly is including linking firmly the lateral shifting plate of guide rail fixed plate lower extreme is in with the setting the layer board of lateral shifting plate lower extreme, the layer board links firmly on the workstation, the layer board both sides are equipped with the spout, lateral shifting plate sliding connection be in the spout, one side of layer board is equipped with the hand wheel, the hand wheel passes through the lead screw and links to each other with the lateral shifting plate.

In foretell step grinding machine, feeding mechanism is including setting up the pay-off seat on the workstation, be equipped with the slide rail on the pay-off seat, just one side of pay-off seat is equipped with telescopic cylinder, telescopic cylinder one end of telescopic cylinder is equipped with and slides slider on the slide rail, the end of slider is equipped with the joint groove, one side in joint groove is equipped with the joint piece, the joint groove is used for the joint work piece, just the end of slider is equipped with feeding cylinder, feeding cylinder's telescopic link with fixed establishment sets up relatively, feeding cylinder releases the work piece to fixed establishment department from the joint inslot.

In the step grinding machine, the elastic chuck, the motor, the moving cylinder, the telescopic cylinder and the feeding cylinder are all electrically connected with the PLC.

Compared with the prior art, the utility model has the advantages of: through the device, utilize feeding mechanism to carry the work piece, fixed establishment presss from both sides tightly the work piece, grinding mechanism accomplishes the processing of work piece step face, moving mechanism accomplishes the removal to grinding mechanism according to the use needs simultaneously to whole journey carries out automated control through PLC, has improved the efficiency of grinding, has improved the automation of production, has also avoided the workman to have the injured circumstances to take place in the maloperation, has satisfied the user demand.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

fig. 2 is a schematic structural view of a fixing mechanism according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a grinding mechanism according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a feeding mechanism according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a longitudinal movement assembly according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a lateral shifting assembly according to an embodiment of the present invention.

In the figure, 100 — the table; 200-a securing mechanism; 210-a fixed seat; 220-a collet; 300-a grinding mechanism; 310-a motor; 320-grinding wheel; 321-an inner shield; 322-an outer shield; 330-motor fixing seat; 400-a feeding mechanism; 410-a feeding seat; 420-a slide rail; 430-telescopic cylinder; 440-a slider; 450-a snap groove; 460-a clamping block; 470-a feed cylinder; 500-a moving mechanism; 510-a longitudinal movement assembly; 511-longitudinally moving the plate; 512-guide fixing plate; 513-a moving cylinder; 514-sliding guide rail; 515-a damper; 516-a stop lever; 520-a lateral movement assembly; 521-transversely moving the plate; 522-pallet; 523-chute; 524-handwheel.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, the utility model relates to a step grinder, include: a work table 100; a fixing mechanism 200 provided on the table 100, the fixing mechanism 200 being for fixing a workpiece; a grinding mechanism 300 provided on one side of the fixing mechanism 200, the grinding mechanism 300 grinding the workpiece; the feeding mechanism 400 is arranged on one side of the fixing mechanism 200 and the grinding mechanism 300, and the feeding mechanism 400 conveys the workpiece to the fixing mechanism 200 for clamping and fixing; and a moving mechanism 500 which is arranged at the lower end of the grinding mechanism 300, wherein the moving mechanism 500 drives the grinding mechanism 300 to move back and forth.

When the grinding machine is used, the moving mechanism 500 is used for driving the grinding mechanism 300 to move away from one side of the fixing mechanism 200, then the feeding mechanism 400 is started, a workpiece is conveyed to the fixing mechanism 200 by the feeding mechanism 400 to be clamped and fixed, then the grinding mechanism 300 is moved to a position close to the fixing mechanism 200 through the moving mechanism 500, then the grinding mechanism 300 is used for machining a step surface of the workpiece, in the machining process, the moving mechanism 500 is used for driving the grinding mechanism 300 to move back and forth relative to the workpiece, grinding machining is conducted on one side of the workpiece, after the grinding machining is completed, the elastic chuck is loosened, the workpiece automatically drops, and a machining cycle is completed. So the utility model discloses a step grinding machine utilizes feeding mechanism to carry the work piece, fixed establishment presss from both sides tightly, grinding mechanism accomplishes the processing of work piece step face to the work piece, and moving mechanism accomplishes the removal to grinding mechanism according to the use needs simultaneously, and the utility model provides a fixed establishment, grinding mechanism, moving mechanism, feeding mechanism all are connected with the PLC controller electricity, carry out automated control through PLC, have improved the efficiency of grinding, have improved the automation of production, have also avoided the workman to have the injured condition to take place in the maloperation, have satisfied the user demand.

As shown in fig. 2, the fixing mechanism 200 includes a fixing base 210 disposed on the work table 100, and an elastic collet 220 disposed on the fixing base 210 on a side close to the grinding mechanism 300.

The utility model discloses a fixed establishment 200 adopts the structure of instrument car, thereby controls collet 220 through PLC controller control cylinder and presss from both sides tight work piece, avoids rocking of work piece in the course of working, and fixed establishment 200 drives collet 220 through the motor and rotates in the course of working moreover to make the work piece rotate, carry out abrasive machining to the work piece.

As shown in fig. 3, the grinding mechanism 300 includes a motor 310, a power head, and a grinding wheel 320 connected to an outer end of the power head, the motor 310 and the power head are disposed on the worktable 100 through a motor holder 330, the grinding wheel 320 is fixed to the power head through a grinding wheel spindle, and the grinding wheel 320 is located at a side close to the fixing mechanism 200. An inner shield 321 and an outer shield 322 are arranged on the outer side of the grinding wheel 320, the inner shield 321 is positioned on the outer side of the grinding wheel 320, and the outer shield 322 is positioned on the outer sides of the inner shield 321 and the collet 220.

After the motor 310 is powered on, the power head is driven to rotate, and then the power head drives the grinding wheel 320 to rotate, so that the workpiece specified on one side of the elastic chuck 220 is ground. An inner protective cover 321 and an outer protective cover 322 are arranged on the outer side of the grinding wheel 320, so that the grinding wheel 320, the elastic chuck 220 and the workpiece are isolated, the safety protection effect is achieved, and the workpiece is prevented from being accidentally injured in the machining process.

As shown in fig. 5 and 6, the moving mechanism 500 includes a longitudinal moving assembly 510 and a transverse moving assembly 520, and the longitudinal moving assembly 510 and the transverse moving assembly 520 move the grinding mechanism 300 back and forth relative to the fixing mechanism 200 and the feeding mechanism 400. The longitudinal moving assembly 510 includes a longitudinal moving plate 511 connected to the lower end of the motor fixing base 330 and a guide rail fixing plate 512 arranged at the lower end of the longitudinal moving plate 511, a moving cylinder 513 is arranged on the longitudinal moving plate 511, one end of a telescopic rod of the moving cylinder 513 is connected to the guide rail fixing plate 512, a sliding guide rail 514 is arranged on the guide rail fixing plate 512, a damper 515 and a limiting rod 516 are arranged on one side of the guide rail fixing plate 512 far away from the moving cylinder 513, and one end of the damper 515 close to the longitudinal moving plate 511 is longer than the limiting rod 516. The transverse moving assembly 520 comprises a transverse moving plate 521 fixedly connected to the lower end of the guide rail fixing plate 512 and a supporting plate 522 arranged at the lower end of the transverse moving plate 521, the supporting plate 522 is fixedly connected to the workbench 100, sliding grooves 523 are arranged on two sides of the supporting plate 522, the transverse moving plate 521 is slidably connected in the sliding grooves 523, a hand wheel 523 is arranged on one side of the supporting plate 522, and the hand wheel 523 is connected with the transverse moving plate 521 through a screw rod.

When the grinding mechanism 300 is moved longitudinally: the moving cylinder 513 is started, and the moving cylinder 513 drives the longitudinal moving plate 511 to move back and forth along the sliding guide rail 514 relative to the guide rail fixing plate 512, so as to drive the motor 310 and the grinding wheel 320 arranged on the longitudinal moving plate 511 to move back and forth relative to the guide rail fixing seat 512, that is, relative to the fixing mechanism 200. When the longitudinal moving plate 511 drives the grinding wheel 320 to move to a workpiece close to the elastic chuck 220, the longitudinal moving plate 511 contacts the damper 515, the damper 515 contacts the longitudinal moving plate 511, and the longitudinal moving plate 511 is subjected to buffering force of the damper 515, so that the moving speed is relatively slow, the grinding wheel 320 moves to one side of the workpiece slowly, and the workpiece is prevented from being damaged due to the fact that the grinding wheel 320 moves too fast. In addition, the guide rail fixing plate 512 is further provided with a limiting rod 516, when the longitudinal moving plate 511 moves to a position close to the workpiece, the limiting rod 516 limits the further movement of the longitudinal moving plate 511, namely the size of the grinding rear step is controlled by the limiting rod 516; when moving transversely: the hand wheel 524 is rotated to drive the screw rod to rotate through the hand wheel 524, so as to drive the lateral moving plate 521 to slide left and right along the sliding groove 523 of the supporting plate 522, and further to drive the grinding mechanism 300 to move left and right relative to the fixing mechanism 200.

As shown in fig. 4, the feeding mechanism 400 is disposed on the feeding base 410 of the workbench 100, the feeding base 410 is provided with a slide rail 420, one side of the feeding base 410 is provided with a telescopic cylinder 430, one end of the telescopic cylinder 430 is provided with a slide block 440 sliding on the slide rail 420, the end of the slide block 440 is provided with a clamping groove 450, one side of the clamping groove 450 is provided with a clamping block 460, the clamping groove 450 is used for clamping a workpiece, the end of the slide block 440 is provided with a feeding cylinder 470, the telescopic rod of the feeding cylinder 470 is disposed opposite to the fixing mechanism 200, and the feeding cylinder 470 pushes the workpiece out of the clamping groove 450 to the fixing mechanism 200.

When feeding, one end of a workpiece is clamped in the clamping groove 450, then the telescopic cylinder 430 drives the sliding block 440 to move towards the fixing mechanism 200 along the sliding rail 420, when the telescopic cylinder 430 moves the workpiece fixed in the clamping groove 450 at the tail end of the sliding block 440 to the elastic chuck 220, the feeding cylinder 470 starts to work, the feeding cylinder 470 pushes the workpiece out of the clamping groove 450 to the elastic chuck 220 for clamping and fixing, and then the telescopic cylinder 430 drives the sliding block 440 to move towards one side far away from the fixing mechanism 200, so that feeding is completed.

The elastic chuck 220, the motor 310, the moving cylinder 513, the telescopic cylinder 430 and the feeding cylinder 470 are all electrically connected with the PLC.

The telescopic cylinder 430 and the feeding cylinder 470 are controlled by the PLG controller to complete feeding of the workpiece, the elastic chuck 220 is controlled to clamp and position the workpiece, the motor 310 is controlled to process the workpiece, the moving cylinder 513 is controlled to drive the grinding mechanism 300 to move, and the whole process is controlled automatically by the PLC, so that the grinding efficiency is improved, and the production automation is improved.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein will be apparent to those skilled in the art without departing from the scope and spirit of the invention as defined in the accompanying claims.

Claims

1. A step grinder, comprising:

a work table;

the grinding mechanism is arranged on one side of the fixing mechanism and grinds the workpiece;

2. The step grinder of claim 1, wherein the fixing mechanism comprises a fixing seat provided on the table and a collet provided on the fixing seat and adjacent to one side of the grinding mechanism.

3. The step grinder of claim 2, wherein the grinding mechanism comprises a motor, a power head and a grinding wheel connected to the outer end of the power head, the motor and the power head are arranged on the worktable through a motor fixing seat, the grinding wheel is fixed on the power head through a grinding wheel spindle, and the grinding wheel is located on one side close to the fixing mechanism.

4. A bench grinder as claimed in claim 3, characterised in that the outer side of the grinding wheel is provided with an inner shield and an outer shield, the inner shield being located on the outer side of the grinding wheel and the outer shield being located on the outer side of the inner shield and the collet.

5. The step grinder of claim 3, wherein the moving mechanism comprises a longitudinal moving assembly and a transverse moving assembly, and the longitudinal moving assembly and the transverse moving assembly drive the grinding mechanism to move back and forth relative to the fixing mechanism and the feeding mechanism.

6. The step grinding machine according to claim 5, wherein the longitudinal moving assembly comprises a longitudinal moving plate connected to the lower end of the motor fixing seat and a guide rail fixing plate arranged at the lower end of the longitudinal moving plate, a moving cylinder is arranged on the longitudinal moving plate, one end of a telescopic rod of the moving cylinder is connected to the guide rail fixing plate, a sliding guide rail is arranged on the guide rail fixing plate, a damper and a limiting rod are arranged on one side, away from the moving cylinder, of the guide rail fixing plate, and one end, close to the longitudinal moving plate, of the damper is longer than the limiting rod.

7. The step grinding machine according to claim 6, wherein the lateral moving assembly comprises a lateral moving plate fixedly connected to the lower end of the guide rail fixing plate and a supporting plate arranged at the lower end of the lateral moving plate, the supporting plate is fixedly connected to the workbench, sliding grooves are formed in two sides of the supporting plate, the lateral moving plate is slidably connected in the sliding grooves, and a hand wheel is arranged on one side of the supporting plate and connected with the lateral moving plate through a screw rod.

8. The step grinding machine according to claim 7, wherein the feeding mechanism comprises a feeding seat arranged on the workbench, a sliding rail is arranged on the feeding seat, a telescopic cylinder is arranged on one side of the feeding seat, a sliding block sliding on the sliding rail is arranged at one end of a telescopic cylinder of the telescopic cylinder, a clamping groove is formed in the tail end of the sliding block, a clamping block is arranged on one side of the clamping groove and used for clamping a workpiece, a feeding cylinder is arranged at the tail end of the sliding block, a telescopic rod of the feeding cylinder is arranged opposite to the fixing mechanism, and the feeding cylinder pushes the workpiece out of the clamping groove to the fixing mechanism.

9. The step grinder of claim 8, wherein the collet, the motor, the moving cylinder, the telescopic cylinder and the feeding cylinder are electrically connected with a PLC controller.