Workpiece positioning device of centerless grinding machine

Abstract

The utility model belongs to the technical field of machining, and particularly relates to a centerless grinding machine workpiece positioning device which comprises a workbench, a first shell and a second shell are fixedly installed at the two ends of the top of the workbench respectively, and grinding assemblies are arranged in the first shell and the second shell respectively. Fixing plates are arranged outside the two ends of the first shell and the two ends of the second shell, fixing blocks are fixedly installed on one sides of the exteriors of the multiple fixing plates, and rotating discs are rotatably installed on one sides of the exteriors of the fixing blocks; a driving motor drives a rotating disc to rotate, when the rotating disc rotates, a driving ring and a gear are driven to rotate, a driven plate is driven to move through rotation of the gear, and when the driven plate moves, a moving plate is driven to move, so that the effect of fixing the two ends of workpieces with different widths is achieved; the two ends of the workpiece are fixed, so that the workpiece is more stable in the grinding process, the grinding precision is improved, meanwhile, the consistency of the size and the shape of the workpiece is kept, and machining errors are reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of machining, specifically a centerless grinding machine workpiece positioning device. BACKGROUND

[0002] Centerless grinding machine can provide very high machining precision, especially suitable for the workpiece requiring high geometric precision and surface finish, because the grinding mode of centerless grinding machine can ensure that the workpiece remains stable during the whole grinding process, reduces vibration and position deviation, so that the workpiece processed has higher dimensional accuracy and surface quality.

[0003] The principle of centerless grinding machine workpiece positioning device mainly involves two aspects of mechanical structure and kinematics. Through the application of accurate mechanical structure and kinematics principle, the workpiece positioning device can efficiently polish the required machining workpiece, and provide strong support for the polishing of the produced workpiece.

[0004] The existing centerless grinding machine is often polished by guide wheel and grinding wheel in the process of use, and the workpiece cannot keep stable position on the grinding machine when the guide wheel and grinding wheel polish the workpiece, which leads to the position deviation of the workpiece in the polishing process, thereby affecting the grinding precision, and the inaccurate positioning will lead to the inconsistent size and shape of different workpieces, increasing the machining error; therefore, aiming at the above problems, a centerless grinding machine workpiece positioning device is proposed. UTILITY MODEL CONTENTS

[0005] In order to make up for the deficiency of prior art, the existing centerless grinding machine is often polished by guide wheel and grinding wheel in the process of use, and the workpiece cannot keep stable position on the grinding machine when the guide wheel and grinding wheel polish the workpiece, which leads to the position deviation of the workpiece in the polishing process, thereby affecting the grinding precision, and the inaccurate positioning will lead to the inconsistent size and shape of different workpieces, increasing the machining error, the utility model proposes a centerless grinding machine workpiece positioning device.

[0006] The utility model discloses a technical scheme that solves its technical problem is a centerless grinding machine workpiece positioning device, including the workbench, the top both ends of workbench are fixedly installed with first shell, second shell respectively, the inside of first shell, second shell all is equipped with polishing subassembly, the both ends outside of first shell, second shell all are equipped with fixed plate, the outside one side of multiple fixed plate is fixedly installed with fixed block, the outside one side of fixed block is rotatably installed with the rotating disc, the outside one side of rotating disc is fixedly installed with drive ring, the outside rotatable installation of drive ring has the rotating ring, the outside one side of rotating ring rotatably installs in the outside one side of rotating disc, the inner wall four ends of drive ring all are engaged with the gear, the bottom rotatable installation of gear has the connecting rod, the outside one end of connecting rod rotatably installs in the outside one side of rotating disc, the outside of multiple gear all is engaged with the driven plate, the bottom sliding installation of driven plate one end is in the outside one side of rotating ring, the outside one side of multiple driven plate all is fixedly installed with the moving plate, through the drive motor of starting drive, the rotating disc rotates, when the rotating disc rotates, will drive ring and gear rotate, through the gear rotation drive driven plate moves, when driven plate moves, will drive moving plate to move and realize the effect of the both ends of the workpiece of different width fixed, through the effect of the both ends of the workpiece fixed, realize in the polishing process workpiece is more stable, thereby improve the precision of grinding, keep the size and shape of workpiece consistent simultaneously, reduce the processing error.

[0007] Preferably, the top four ends of the workbench are fixedly installed with a support, and the top of one end of the plurality of supports is fixedly installed with a top plate, the top of the top plate is fixedly installed with an air cylinder, and the output end of the air cylinder is fixedly installed with a lifting plate through the inside of the top plate. After the workpiece to be polished is processed, the lifting plate is driven to move up and down by starting the air cylinder. When the lifting plate moves up and down, the polished workpiece is moved, achieving the effect of more convenient material taking.

[0008] Preferably, the bottom of the lifting plate is fixedly installed with an electric sliding rail, and the outside of the electric sliding rail is slidingly installed with a plurality of sliding blocks. The bottom of the plurality of sliding blocks is fixedly installed at the top of one end of the fixed plate. The sliding installation between the electric sliding rail and the sliding block can realize the effect of moving the positioning device. The movement of the positioning device can fix the both ends of the workpiece to be polished of different lengths.

[0009] Preferably, the inner wall of the plurality of moving plates is fixedly installed with a baffle, the inside of the plurality of baffles is slidingly installed with a connecting plate, and the outside of one end of the plurality of connecting plates is fixedly installed with a fixed disc. When the moving plates expand outward to adapt to workpieces to be polished of different widths, the baffles inside the plurality of moving plates can achieve the effect of stretching and contracting simultaneously when the plurality of moving plates expand through the sliding installation between the baffles and the connecting plates.

[0010] Preferably, the inner part of the fixed block is provided with a notch, and a driving motor is fixedly installed in the notch, the output end of the driving motor is fixedly installed on the outer side of the rotating disc, the rotating disc is driven to rotate by starting the driving motor, and the rotating disc drives the positioning device to fix the workpiece to be polished.

[0011] Preferably, the top of the lifting plate is fixedly provided with a piston rod at both ends, and the outer end of the piston rod away from the lifting plate is fixedly installed on the bottom of the top plate.

[0012] The utility model discloses the beneficial effect lies in:

[0013] The utility model discloses a positioning device for workpiece of centerless grinding machine, including fixed block, driving motor, rotating disc, driving ring, gear, driven plate and moving plate, the fixed block is fixedly installed on the top of the centerless grinding machine, the driving motor is fixedly installed in the fixed block, the output end of driving motor is fixedly installed on the outer side of the rotating disc, the rotating disc is driven to rotate by starting the driving motor, and the rotating disc drives the positioning device to fix the workpiece to be polished. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will be briefly introduced the drawings needed to be used in the embodiment or prior art description, obviously, the drawings in the following description only some embodiments of the utility model, for those skilled in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0015] Figure 1 It is the external structure schematic diagram for centerless grinding machine workpiece positioning device;

[0016] Figure 2 It is the external structure schematic diagram for positioning device;

[0017] Figure 3 It is the internal structure schematic diagram for positioning device;

[0018] Figure 4 It is the extension baffle expansion structure schematic diagram;

[0019] Figure 5 This is a schematic diagram of the external structure of the lifting device;

[0020] In the diagram: 1. Workbench; 2. First outer shell; 3. Second outer shell; 4. Grinding assembly; 5. Fixing plate; 6. Fixing block; 7. Drive motor; 8. Rotary disc; 9. Drive ring; 10. Rotating ring; 11. Connecting rod; 12. Gear; 13. Driven plate; 14. Moving plate; 15. Baffle; 16. Connecting plate; 17. Fixing disc; 18. Bracket; 19. Top plate; 20. Cylinder; 21. Lifting plate; 22. Electric slide rail; 23. Sliding block; 24. Piston rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0022] Please see Figures 1-5As shown, a centerless grinding machine workpiece positioning device, including a workbench 1, the top of the workbench 1 is respectively fixedly installed with a first housing 2, a second housing 3, the inside of the first housing 2, the second housing 3 is provided with polishing assembly 4, the two ends of the first housing 2, the second housing 3 are provided with fixed plate 5, a plurality of fixed plate 5 outside one side is fixedly installed with fixed block 6, the outside one side of the fixed block 6 is rotatably installed with rotating disc 8, the outside one side of the rotating disc 8 is fixedly installed with drive ring 9, the outside of the drive ring 9 is rotatably installed with rotating ring 10, the outside one side of the rotating ring 10 is rotatably installed on the outside one side of the rotating disc 8, the inner wall four ends of the drive ring 9 are engagedly installed with gear 12, the bottom of the gear 12 is rotatably installed with connecting rod 11, one end of the connecting rod 11 is rotatably installed outside the outside one side of the rotating disc 8, a plurality of gear 12 outside are engagedly installed with driven plate 13, one end of the driven plate 13 is slidably installed at the outside one side of the rotating ring 10, a plurality of driven plate 13 outside one side is fixedly installed with moving plate 14;When working, the existing centerless grinding machine in the process of use is often polished by guide wheel and grinding wheel, the workpiece cannot keep stable position on the grinding machine when the guide wheel and the grinding wheel polish the workpiece, which causes the workpiece position to deviate during polishing, thereby affecting the grinding accuracy, and the inaccuracy of positioning will cause the size and shape of different workpieces to be inconsistent, increase the processing error, start the drive motor 7 to drive the rotating disc 8 fixedly installed on the output end to rotate, drive the drive ring 9 fixedly installed on the outside one side of the rotating disc 8 to rotate through the rotating disc 8, drive the plurality of gears 12 engagedly installed on the inner wall to rotate through the drive ring 9, drive the driven plate 13 engagedly installed on the outside of the plurality of gears 12 to move through the rotation of the plurality of gears 12, drive the moving plate 14 fixedly installed on the outside of the driven plate 13 to move through the movement of the driven plate 13, drive the moving plate 14 to move to fit the workpiece to be polished of different widths, prevent the gap from existing during positioning to cause the workpiece to be polished to deviate during polishing.

[0023] The top of the workbench 1 is fixedly installed with a plurality of supports 18, one end of the top of the plurality of supports 18 is fixedly installed with a top plate 19, the top of the top plate 19 is fixedly installed with a cylinder 20, the output end of the cylinder 20 is fixedly installed with a lifting plate 21 through the inside of the top plate 19;When working, the existing centerless grinding machine in the process of use is often polished by guide wheel and grinding wheel, the workpiece cannot keep stable position on the grinding machine when the guide wheel and the grinding wheel polish the workpiece, which causes the workpiece position to deviate during polishing, thereby affecting the grinding accuracy, and the inaccuracy of positioning will cause the size and shape of different workpieces to be inconsistent, increase the processing error, drive the lifting plate 21 fixedly installed on the output end of the cylinder 20 to move through the cylinder 20, when the lifting plate 21 moves, it will drive the plurality of positioning devices below to move.

[0024] The bottom of the lifting plate 21 is fixedly installed with an electric sliding rail 22, the outer portion of the electric sliding rail 22 is slidably installed with a plurality of sliding blocks 23, and the bottom of the plurality of sliding blocks 23 is fixedly installed at one end of the top of the fixed plate 5; during operation, the existing centerless grinding machine often grinds the workpiece by means of the guide wheel and the grinding wheel, and the workpiece cannot be kept in a stable position on the grinding machine when the guide wheel and the grinding wheel grind the workpiece, which causes the workpiece position to deviate during grinding, thereby affecting the grinding accuracy, and inaccurate positioning can cause different workpieces to have inconsistent sizes and shapes, increasing the processing error, the sliding blocks 23 are moved by the electric sliding rail 22, the fixed plate 5 is moved by the sliding blocks 23, and the positioning device is moved by the fixed plate 5.

[0025] The inner wall of the plurality of moving plates 14 is fixedly installed with a plurality of baffles 15, the inner portion of the plurality of baffles 15 is slidably installed with a plurality of connecting plates 16, and the outer portion of one end of the plurality of connecting plates 16 is fixedly installed with a plurality of fixed discs 17; during operation, the existing centerless grinding machine often grinds the workpiece by means of the guide wheel and the grinding wheel, and the workpiece cannot be kept in a stable position on the grinding machine when the guide wheel and the grinding wheel grind the workpiece, which causes the workpiece position to deviate during grinding, thereby affecting the grinding accuracy, and inaccurate positioning can cause different workpieces to have inconsistent sizes and shapes, increasing the processing error, when the moving plate 14 moves, the baffle 15 achieves the effect of expansion and contraction through the sliding installation between the connecting plate 16.

[0026] The inner portion of the fixed block 6 is provided with a notch, the inner portion of the notch is fixedly installed with a driving motor 7, and the output end of the driving motor 7 is fixedly installed on the outer portion of one side of the rotating disc 8; during operation, the existing centerless grinding machine often grinds the workpiece by means of the guide wheel and the grinding wheel, and the workpiece cannot be kept in a stable position on the grinding machine when the guide wheel and the grinding wheel grind the workpiece, which causes the workpiece position to deviate during grinding, thereby affecting the grinding accuracy, and inaccurate positioning can cause different workpieces to have inconsistent sizes and shapes, increasing the processing error, the rotating disc 8 is rotated by the output end of the driving motor 7, and the plurality of moving plates 14 are moved by the rotating disc 8.

[0027] The top two ends of the lifting plate 21 are fixedly provided with piston rods 24, and the outer ends of the piston rods 24 away from the lifting plate 21 are fixedly arranged on the bottom of the top plate 19; in operation, the existing centerless grinding machine often grinds the workpiece by means of a guide wheel and a grinding wheel, and the workpiece cannot be kept in a stable position on the grinding machine when the guide wheel and the grinding wheel grind the workpiece, so that the position of the workpiece deviates in the grinding process, thereby affecting the grinding precision, and the inaccurate positioning leads to different sizes and shapes of different workpieces, increasing the processing error, and the multiple piston rods 24 arranged between the top plate 19 and the lifting plate 21 limit the two ends of the lifting plate 21.

[0028] The working principle is that when the positioning device is used to position the outside of the workpiece during grinding, the workpiece to be ground is first placed in the inside of the positioning device at one end, then the electric sliding rail 22 is started to drive the sliding block 23 slidingly arranged thereon to move, the fixed plate 5 fixedly arranged at the bottom of the sliding block 23 is driven to move, the other positioning device is driven to move by the movement of the fixed plate 5, and the two ends of the workpiece to be ground are fixed by the self-adaptation of the length of the workpiece to be ground, when the fixing is completed, the driving motor 7 is started to drive the rotating disc 8 fixedly arranged at the output end thereof to rotate, the driving ring 9 fixedly arranged at the outer side of the rotating disc 8 is driven to rotate by the rotation of the rotating disc 8, the multiple gears 12 meshingly arranged on the inner wall are driven to rotate by the rotation of the driving ring 9, the driven plate 13 meshingly arranged on the outside of the multiple gears 12 is driven to move by the rotation of the multiple gears 12, the moving plate 14 fixedly arranged on the outside of the driven plate 13 is driven to move by the movement of the driven plate 13, and different widths of the workpiece to be ground are fitted by the movement of the moving plate 14, so as to prevent the workpiece to be ground from deviating during grinding due to the gap during positioning.

[0029] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] The basic principles, main features and advantages of the present application have been shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only illustrative of the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A centerless grinder workpiece positioning apparatus, characterized by: The utility model provides a polishing device, including workbench (1), the top both ends of workbench (1) are fixedly installed with first shell (2), second shell (3) respectively, the inside of first shell (2), second shell (3) is equipped with polishing assembly (4) all, the both ends outside of first shell (2), second shell (3) are equipped with fixed plate (5) all, the outside one side of a plurality of fixed plate (5) is fixedly installed with fixed block (6), the outside one side of fixed block (6) is rotatably installed with rotary disc (8), the outside one side of rotary disc (8) is fixedly installed with drive ring (9), the outside rotatable of drive ring (9) is installed with rotary ring (10), the outside one side of rotary ring (10) is rotatably installed in the outside one side of rotary disc (8), the inner wall four ends of drive ring (9) are all engaged with gear (12), the bottom rotatable of gear (12) is installed with connecting rod (11), the outside one end of connecting rod (11) is rotatably installed in the outside one side of rotary disc (8), the outside of a plurality of gear (12) is all engaged with driven plate (13), the bottom of one end of driven plate (13) is slidably installed in the outside one side of rotary ring (10), the outside one side of a plurality of driven plate (13) is fixedly installed with moving plate (14) all.

2. A centerless grinder workpiece positioning apparatus according to claim 1, wherein: The top four ends of the workbench (1) are fixedly installed with a support (18), and the top of one end of a plurality of supports (18) is fixedly installed with a top plate (19). The top of the top plate (19) is fixedly installed with a gas cylinder (20), and the output end of the gas cylinder (20) is fixedly installed with a lifting plate (21) through the inside of the top plate (19).

3. A centerless grinder workpiece positioning apparatus according to claim 2, wherein: The bottom of the lifting plate (21) is fixedly installed with an electric sliding rail (22), and the outside of the electric sliding rail (22) is slidably installed with a plurality of sliding blocks (23). The bottom of a plurality of sliding blocks (23) is fixedly installed on the top of one end of the fixed plate (5) respectively.

4. A centerless grinding machine workpiece positioning apparatus as defined in claim 1 wherein: The inner wall of a plurality of moving plates (14) is fixedly installed with a baffle (15), and the inside of a plurality of baffles (15) is slidably installed with a connecting plate (16). The outside of one end of a plurality of connecting plates (16) is fixedly installed with a fixed disc (17).

5. A centerless grinding machine workpiece positioning apparatus as described in claim 1 wherein: The inside of the fixed block (6) is provided with a notch, and the inside of the notch is fixedly installed with a driving motor (7). The output end of the driving motor (7) is fixedly installed on the outside of the rotary disc (8).

6. A centerless grinding machine workpiece positioning apparatus as described in claim 2 wherein: The top of the lifting plate (21) is fixedly installed with a piston rod (24) at both ends. The outside of the piston rod (24) away from the lifting plate (21) is fixedly installed on the bottom of the top plate (19).

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