Tool setting device for grinding machine

Abstract

The tool setting device for the grinding machine relates to the technical field of numerical control grinding machines and comprises a mounting base, a plurality of electric telescopic rods are symmetrically mounted on the bottom face of the mounting base, a protection box is mounted at the bottom ends of the electric telescopic rods together, and moving blocks are connected to the two outer sides of the protection box in a sliding mode. The protection box drives two moving blocks to slide up and down through a lifting mechanism, the top face of each moving block is slidably connected with a push rod, the bottom end of each push rod is fixedly provided with a base plate, and a spring is jointly installed between each push rod and the top face of the corresponding moving block. The two moving blocks can be driven to slide downwards through the lifting mechanism, so that the base plate is driven to make contact with the outer side of a workpiece, the driving mechanism is controlled to drive the assembling plate to slide, comparison is conducted through the distance sensed by the second sensor, and therefore the grinding wheel is just in contact with the workpiece, and tool setting is completed.

Description

TECHNICAL FIELD

[0001] The utility model relates to numerical control grinding machine field especially relates to a tool setting device for grinding machine. BACKGROUND

[0002] Numerical control grinding machine is through numerical control technology utilizes the grinding tool to the workpiece surface grinding processing machine. Most of the grinding machine is using high speed rotation abrasive wheel grinding, a few are using oil stone, abrasive belt and other grinding tools and free abrasive processing, such as honing machine, super finishing machine, abrasive belt grinding machine, grinding machine and polishing machine etc.

[0003] Because abrasive wheel has the wear after using, therefore needs the tool setting device for determining the corresponding position of workpiece and abrasive wheel before grinding each time, makes the outside of abrasive wheel just contact workpiece, and not abuts, the existing tool setting device is more cumbersome, and relies on artificial experience, needs the worker with higher experience to determine the movement precision of abrasive wheel according to operating experience, and the worker with less experience needs repeatedly adjustment, reduces production efficiency, therefore needs to propose a tool setting device for grinding machine in view of the above problems. SUMMARY

[0004] (I) the technical problem solved

[0005] In view of the defects of prior art, the utility model provides a tool setting device for grinding machine, solves the problems that the existing tool setting device is more cumbersome and relies on artificial experience, and reduces the production efficiency.

[0006] (II) technical scheme

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a tool setting device for grinding machine, including the mounting seat, the bottom surface of mounting seat is symmetrically installed with a plurality of electric telescopic rods, the bottom end of a plurality of electric telescopic rods is commonly installed with the protection box, both outer sides of protection box are slidably connected with the moving block, and the protection box drives two moving blocks to slide up and down through the lifting mechanism, the top surface of each moving block is slidably connected with the push rod, and the bottom end of each push rod is fixedly installed with the backing plate, the spring is commonly installed between the top surface of each push rod and moving block, the top end of each push rod is installed with the first sensor, the assembly plate is slidably connected in the protection box, and the bottom surface of assembly plate is installed with the second sensor and abrasive wheel respectively, and the assembly plate slides up and down through the moving mechanism driven protection box.

[0008] Preferably, the lifting mechanism comprises a plurality of fixing bases, and the fixing bases are symmetrically arranged on the two outer sides of the mounting base respectively, a threaded rod is rotationally connected between every two fixing bases on the same side, each threaded rod is threadedly connected with a corresponding moving block, and the threaded rods on the two sides are connected through a synchronous mechanism, and the top end of one of the fixing bases is fixedly provided with a first motor, and the output shaft of the first motor is connected with a corresponding threaded rod.

[0009] Preferably, the moving mechanism comprises a double-headed screw rod, the double-headed screw rod is rotationally connected to the side wall of the protection box, a second motor is fixedly arranged on the inner wall of the protection box, and the output shaft of the second motor is connected with the double-headed screw rod, two threaded sleeves are threadedly connected to the double-headed screw rod, the bottom surface of each threaded sleeve is rotationally connected with a connecting rod, and the other end of each connecting rod is rotationally connected to the top surface of the assembly plate.

[0010] Preferably, the synchronous mechanism comprises two chain wheels, and the chain wheels are arranged at the top ends of the two threaded rods respectively, and the chain wheels are jointly sleeved with a chain, and each chain wheel is engaged with the chain.

[0011] Preferably, the two outer sides of the mounting base are provided with first sliding grooves, and each first sliding groove is slidably connected with a corresponding moving block.

[0012] Preferably, the two inner walls of the mounting base are provided with second sliding grooves, and the assembly plate is slidably connected with each second sliding groove.

[0013] Three beneficial effects

[0014] Compared with the prior art, the utility model provides a kind of, with following beneficial effects:

[0015] 1, the utility model discloses a first sensor, second sensor, lifting mechanism, moving mechanism, spring, push rod, moving block and other devices, realize the two moving blocks can be driven to slide down by lifting mechanism, to drive the outer side of the contact between pad and workpiece, by the distance of second sensor sensing is compared, so that the grinding wheel just contacts with workpiece, completes tool setting.

[0016] 2, the utility model discloses by setting electric telescopic rod, synchronous mechanism, first sensor and other devices, realize the distance between grinding wheel and workpiece can be roughly adjusted by electric telescopic rod, and two moving blocks are driven to slide synchronously by synchronous mechanism, so that the displacement distance is recorded synchronously by two first sensors, can be compared with each other, improve the accuracy of tool setting. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1The utility model provides a kind of structure schematic view of tool setting device for grinder.

[0018] Fig. 2 The utility model provides a kind of structure schematic view of lifting mechanism of tool setting device for grinder.

[0019] Fig. 3 The utility model provides a kind of structure schematic view of moving mechanism of tool setting device for grinder.

[0020] In the drawing: 1, mounting seat;2, electric telescopic rod;3, protection box;4, first sliding groove;5, threaded rod;6, moving block;7, fixed seat;8, chain wheel;9, chain;10, first motor;11, push rod;12, spring;13, first sensor;14, backing plate;15, double-end screw;16, second motor;17, link rod;18, assembly plate;19, grinding wheel;20, second sensor;21, second sliding groove;22, threaded sleeve. Specific implementation

[0021] In the utility model, in the case where no opposite statement is made, the orientation such as "upper, lower" is usually for the direction shown in the drawing, or for the vertical, perpendicular or gravity direction;Similarly, for the convenience of understanding and description, "left, right" is usually for the left and right shown in the drawing;"Inner, outer" refers to the inner and outer of the contour of each component itself, but the above orientation words are not used to limit the utility model.

[0022] The utility model provides a kind of technical scheme:

[0023] Refer to Figs. 1-3 A kind of tool setting device for grinder, including mounting seat 1, the bottom surface of mounting seat 1 is symmetrically equipped with multiple electric telescopic rods 2, the bottom end of multiple electric telescopic rods 2 is commonly equipped with protection box 3, the both outer sides of protection box 3 are slidably connected with moving block 6, protection box 3 drives two moving blocks 6 to slide up and down by lifting mechanism, the top surface of each moving block 6 is slidably connected with push rod 11, the bottom end of each push rod 11 is fixedly installed with backing plate 14, spring 12 is commonly installed between each push rod 11 and the top surface of moving block 6, the top end of each push rod 11 is installed with first sensor 13, assembly plate 18 is slidably connected in protection box 3, the bottom surface of assembly plate 18 is respectively equipped with second sensor 20 and grinding wheel 19, protection box 3 drives assembly plate 18 to slide up and down by moving mechanism.

[0024] It should be noted that the initial positions of the first sensor 13 and the second sensor 20 should be the same, and the first sensor 13 and the second sensor 20 are displacement sensors, and the two moving blocks 6 can be driven to slide downward through the lifting mechanism, so as to drive the base plate 14 to contact the outer side of the workpiece, drive the assembly plate 18 to slide through the control driving mechanism, and compare the distance sensed by the second sensor 20, so that the grinding wheel just contacts the workpiece, and the tool setting is completed.

[0025] Further, the lifting mechanism includes a plurality of fixing seats 7, and the plurality of fixing seats 7 are symmetrically installed on the two outer sides of the mounting seat 1, and a threaded rod 5 is rotatably connected between every two fixing seats 7 located on the same side, and each threaded rod 5 is threadedly connected with a corresponding moving block 6, and the top end of one of the fixing seats 7 is fixedly installed with a first motor 10, and the output shaft of the first motor 10 is connected with a corresponding threaded rod 5, and the two moving blocks 6 are driven to slide through the two threaded rods 5, and the data of the two first sensors 13 can be compared with each other to improve the accuracy.

[0026] Further, the moving mechanism includes a double-headed screw 15 rotatably connected to the side wall of the protection box 3, a second motor 16 fixedly installed on the inner wall of the protection box 3, and an output shaft of the second motor 16 connected with the double-headed screw 15, and two threaded sleeves 22 threadedly connected to the double-headed screw 15, and each threaded sleeve 22 rotatably connected with a connecting rod 17 on the bottom surface, and the other end of each connecting rod 17 rotatably connected to the top surface of the assembly plate 18, and the assembly plate 18 is driven to move through the pushing of the connecting rod 17.

[0027] Further, the synchronization mechanism includes two sprockets 8, and the two sprockets 8 are installed at the top ends of the two threaded rods 5, and the two sprockets 8 are jointly sleeved with a chain 9, and each sprocket 8 is engaged with the chain 9.

[0028] Further, the two outer sides of the mounting seat 1 are provided with first sliding grooves 4, and each first sliding groove 4 is slidably connected with a corresponding moving block 6 to limit the rotation of the moving block 6.

[0029] Further, the two inner walls of the mounting seat 1 are provided with second sliding grooves 21, and the assembly plate 18 is slidably connected with each second sliding groove 21 to limit the rotation of the assembly plate 18, so that each threaded sleeve 22 cannot rotate.

[0030] In specific use, the working principle of the utility model is as follows:

[0031] The utility model discloses a device, and the device is used for the rough adjustment of the distance between the grinding wheel and the workpiece.

[0032] When the distance between the grinding wheel and the workpiece is small, one of the threaded rods 5 can be rotated by starting the first motor 10, and each moving block 6 can be driven to slide downward by the cooperation of the first sliding groove 4, the sprocket 8 and the chain 9. Before the base plate 14 contacts the workpiece, the displacement distance sensed by the first sensor 13 continuously increases, until the base plate 14 abuts against the bottom surface of the workpiece. Then, the push rod 11 slides upward, and the displacement distance sensed by the first sensor 13 decreases. At this time, the first motor 10 is stopped, and the sliding of the moving block 6 is stopped. At this time, the force of the spring 12 makes the base plate 14 abut against the surface of the workpiece. Then, the first motor 10 is reversed, the moving block 6 slides upward, and the displacement distance sensed by the first sensor 13 is consistent with the displacement distance before the decrease. At this time, the base plate 14 contacts the surface of the workpiece. Then, the operator can start the second motor 16 to drive the two threaded sleeves 22 to slide toward each other, so as to rotate the connecting rod 17, move the assembly plate 18 to slide outward, and record the displacement distance of the assembly plate 18 by the second sensor 20. When the displacement distance of the assembly plate 18 is consistent with the displacement distance of the first sensor 13, the bottom surface of the grinding wheel 19 contacts the surface of the workpiece, so as to realize the tool setting of the grinding wheel and the workpiece.

[0033] The above is only a specific embodiment of the utility model, but the technical features of the utility model are not limited to this. Any simple change, equivalent replacement or modification made on the basis of the utility model to solve the same technical problem and achieve the same technical effect is covered by the protection scope of the utility model.

Claims

1. A tool setting device for a grinding machine comprising a mounting base (1), characterised in that, The bottom surface of the mounting base (1) is symmetrically provided with a plurality of electric telescopic rods (2), the bottom ends of the plurality of electric telescopic rods (2) are commonly provided with a protection box (3), both outer sides of the protection box (3) are slidably connected with moving blocks (6), the protection box (3) drives the two moving blocks (6) to slide up and down through a lifting mechanism, the top surface of each moving block (6) is slidably connected with a push rod (11), the bottom end of each push rod (11) is fixedly provided with a pad plate (14), a spring (12) is commonly provided between each push rod (11) and the top surface of the moving block (6), the top end of each push rod (11) is provided with a first sensor (13), the protection box (3) is slidably connected with an assembly plate (18) inside, the bottom surface of the assembly plate (18) is respectively provided with a second sensor (20) and a grinding wheel (19), the protection box (3) drives the assembly plate (18) to slide up and down through a moving mechanism.

2. The tool setting device for a grinding machine according to claim 1, wherein The lifting mechanism comprises a plurality of fixed seats (7), and the plurality of fixed seats (7) are symmetrically provided on both outer sides of the mounting base (1), a threaded rod (5) is commonly rotatably connected between every two fixed seats (7) located on the same side, each threaded rod (5) is threadedly connected with the moving block (6) corresponding in position, and one of the fixed seats (7) is fixedly provided at the top end with a first motor (10), and the output shaft of the first motor (10) is connected with the threaded rod (5) corresponding in position.

3. A tool setting device for a grinding machine according to claim 2, wherein The moving mechanism comprises a double-headed screw rod (15), and the double-headed screw rod (15) is rotatably connected to the side wall of the protection box (3), a second motor (16) is fixedly provided on the inner wall of the protection box (3), and the output shaft of the second motor (16) is connected with the double-headed screw rod (15), two threaded sleeves (22) are threadedly connected to the double-headed screw rod (15), the bottom surface of each threaded sleeve (22) is rotatably connected with a connecting rod (17), and the other end of each connecting rod (17) is rotatably connected to the top surface of the assembly plate (18).

4. The tool setting device for a grinding machine according to claim 3, wherein The synchronous mechanism comprises two sprockets (8), and the two sprockets (8) are respectively provided at the top ends of the two threaded rods (5), the two sprockets (8) are commonly provided with a chain (9), and each sprocket (8) is engaged with the chain (9).

5. A tool setting device for an abrasive machine according to claim 4, wherein Both outer sides of the mounting base (1) are provided with first sliding grooves (4), and each first sliding groove (4) is slidably connected with the moving block (6) corresponding in position.

6. A tool setting device for an abrasive machine according to claim 5, wherein Second sliding grooves (21) are formed in both inner walls of the mounting base (1), and the assembly plate (18) is slidably connected with each second sliding groove (21).

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