CN210548512U

CN210548512U - High-precision saw blade gear grinding machine

Info

Publication number: CN210548512U
Application number: CN201921093397.8U
Authority: CN
Inventors: 王学君
Original assignee: Hangzhou Lanzhi Precision Knife Saw Co ltd
Current assignee: Hangzhou Lanzhi Precision Knife Saw Co ltd
Priority date: 2019-07-12
Filing date: 2019-07-12
Publication date: 2020-05-19
Anticipated expiration: 2029-07-12

Abstract

The utility model relates to the technical field of machining equipment, and discloses a high-precision saw blade gear grinding machine which comprises a frame, wherein a supporting plate for placing a saw blade and a grinding mechanism for grinding a tooth space between saw teeth of the saw blade are arranged in the frame, the grinding mechanism comprises two first motors symmetrically arranged on two sides of the supporting plate, and output shafts of the first motors are connected with grinding rods; the rack is internally provided with a driving assembly for driving the first motor to reciprocate in the horizontal direction, and the rack is internally provided with a shifting assembly for shifting the supporting plate to rotate. The first motor is used for driving the grinding rod to rotate, and the grinding rod on the first motor is matched with the driving assembly to continuously extend into a tooth space between saw teeth of the saw blade so as to grind the tooth space; and the supporting plate drives the saw blade to rotate by stirring the assembly, tooth grooves among saw teeth of the saw blade are sequentially converted to a processing position, and finally, each tooth groove of the saw blade is automatically and quickly polished.

Description

High-precision saw blade gear grinding machine

Technical Field

The utility model relates to a machining equipment technical field especially relates to a high accuracy saw bit gear grinding machine.

Background

In the actual engineering, the cutting process is mostly carried out by using the saw blade, but the saw blade is abraded along with the increase of working hours, so that the cutting efficiency is influenced, and therefore, the saw teeth of the saw blade need to be polished. The traditional saw blade grinding generally depends on manual grinding, the workload is large, the efficiency is low, and the grinding quality of the saw blade cannot be ensured.

The invention patent with the Chinese patent application number of CN201710561908.3 discloses a saw blade tooth slot grinding machine, which comprises a rack, wherein one end of the rack is provided with a first supporting plate, the first supporting plate is provided with a second supporting plate, an upright post is fixedly arranged on the second supporting plate, the upper end of the upright post is provided with a rocker arm, an angular contact bearing is arranged between the rocker arm and the upright post, one end of the rocker arm, which is far away from the upright post, is provided with a motor, an output shaft of the motor is connected with a transmission shaft, the transmission shaft is connected with the rocker arm through; the other end of the frame is provided with a saw blade fixing base, the saw blade fixing base is provided with a saw blade fixing shaft, the saw blade fixing shaft is connected with the saw blade fixing base through a ball bearing, and the saw blade is fixed at one end of the saw blade fixing shaft.

Although the above patent realizes automation of saw blade grinding to a certain extent, the above patent needs to manually shake the rocker arm back and forth to grind the tooth profile by the grinding wheel in the process of large saw blade grinding; moreover, after finishing the grinding of one tooth profile, the saw blade needs to be manually shifted to a second tooth profile position, thereby resulting in lower efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it is anticipated to provide a high accuracy saw bit gear grinding machine to overcome the lower problem of saw bit sharpening machine efficiency that prior art exists.

In order to achieve the above purpose, the basic scheme of the utility model is as follows: a high-precision saw blade gear grinding machine comprises a rack, wherein a supporting plate for placing a saw blade and a grinding mechanism for grinding a tooth groove of the saw blade are arranged in the rack, the grinding mechanism comprises two first motors symmetrically arranged on two sides of the supporting plate, and an output shaft of each first motor is connected with a grinding rod for grinding the tooth groove; a driving assembly used for driving the first motor to reciprocate in the horizontal direction is arranged in the rack, the driving assembly comprises a second motor, an output shaft of the second motor is coaxially connected with a first bevel gear, half of the first bevel gear is toothed, half of the first bevel gear is toothless, two second bevel gears are meshed on two sides of the first bevel gear, the two second bevel gears are coaxially and jointly connected with a screw rod, the screw rod is rotatably connected in the rack, threads are arranged at two ends of the screw rod, the directions of the threads are opposite, sliding blocks are respectively in threaded connection with two ends of the screw rod, the sliding blocks are slidably connected in the rack, and the first motor is fixedly connected to the sliding blocks; the bottom fixedly connected with vertical axis of rotation of layer board, the coaxial fixedly connected with ratchet of axis of rotation, and the number of teeth of ratchet is the same with the sawtooth number of saw bit, is connected with on arbitrary one slider to be used for stirring ratchet pivoted and stirs the subassembly, stir the subassembly and include the connecting rod of fixed connection in slider one side, the end of connecting rod articulates there is the claw hook of stirring, and stirs and be connected with the stay cord between claw hook and the connecting rod.

Furthermore, the supporting plate is disc-shaped, a fixing column used for penetrating through a center hole of the saw blade is installed on the upper surface of the supporting plate, limiting clamping blocks used for limiting the saw blade are evenly distributed on the upper surface of the supporting plate along the circumference, and the limiting clamping blocks can be clamped in tooth grooves of the saw blade.

Further, the grinding rod is cylindrical, an external thread is arranged at the lower end of the grinding rod, a first connecting sleeve head is fixedly mounted at the end of an output shaft of the first motor, and the lower end of the grinding rod is in threaded connection with the first connecting sleeve head.

Further, the upper end fixed mounting of pole of polishing has the second to connect the pullover, the pullover dismantlement of second connection is connected with the dwang, be equipped with rotor blade on the dwang.

Further, still be equipped with the fixed establishment who is used for fixed saw bit in the frame, fixed establishment is including diaphragm and the clamp plate that from top to bottom sets gradually, it has vertical slide bar to run through to slide on the diaphragm, the lower extreme and the clamp plate fixed connection of slide bar, and the cover is equipped with the spring on the slide bar, the upper end of slide bar is equipped with the piece of gripping, diaphragm fixedly connected with spliced pole, the spliced pole rotates to be connected in the frame.

Further, the lower surface of the pressing plate is in a concave-convex toothed surface shape.

Compared with the prior art, the scheme has the beneficial effects that:

1. the second motor in the driving assembly is matched with the first bevel gear, the second bevel gear and the screw rod to enable the screw rod to drive the two sliding blocks to alternately move oppositely and reversely, and the first motor and the grinding rod rotating at a high speed are driven to grind sawtooth tooth grooves on the saw blade in the process that the two sliding blocks move oppositely.

2. Through stirring the grapple of stirring the subassembly and make the ratchet drive the layer board and rotate, the layer board drives the synchronous rotation of saw bit, with the sawtooth interbank tooth space of saw bit change to the processing position in proper order to the high-speed pivoted pole of polishing of cooperation realizes carrying out quick coping to every tooth space of saw bit automatically in succession, has improved efficiency.

3. The in-process in tooth groove between the sawtooth of pole coping saw bit when polishing, can produce the sweeps and attach to the pole surface of polishing, the pole pivoted in-process of polishing still drives the dwang and rotates, and rotating vane on the dwang rotates around the dwang to produce decurrent air current, will attach to the sweeps on the pole surface of polishing and blow away from the pole of polishing, avoid the sweeps to attach to influence the coping effect to the tooth's socket between the sawtooth on the pole of polishing.

Drawings

FIG. 1 is a schematic structural view of a high-precision saw blade gear grinding machine of the present invention;

fig. 2 is a schematic structural view of a fixing mechanism in the present invention;

FIG. 3 is a view showing a state where a saw blade is placed on a blade;

FIG. 4 is a diagram of the state of the toggle assembly toggling the ratchet.

Reference numerals in the drawings of the specification include: the grinding machine comprises a frame 1, a first motor 2, a first connecting sleeve head 21, a second connecting sleeve head 22, a grinding rod 23, a rotating rod 3, a rotating blade 31, a supporting plate 4, a fixing column 41, a limiting fixture block 42, a rotating shaft 43, a ratchet 44, a second motor 5, a first bevel gear 51, a second bevel gear 52, a screw 53, a sliding block 54, a transverse plate 6, a pressing plate 61, a connecting column 62, a connecting rod 7, a toggle claw hook 71, a pull rope 72, a sliding rod 8, a spring 81, a holding block 82, a saw blade 9 and sawteeth 91.

Detailed Description

The invention will be described in further detail by means of specific embodiments with reference to the accompanying drawings:

example (b):

as shown in fig. 1 and 3, a high accuracy saw bit 9 gear grinding machine, including frame 1, be equipped with the layer board 4 that is used for placing saw bit 9 in the frame 1, layer board 4 is discoid, and the last surface mounting of layer board 4 has a fixed column 41 that is used for running through the saw bit 9 centre bore, and the upper surface of layer board 4 has along circumference evenly distributed and is used for carrying out spacing fixture block 42 to saw bit 9, and spacing fixture block 42 can block in the tooth's socket of saw bit 9.

As shown in fig. 1 and 2, a fixing mechanism for fixing a saw blade 9 is arranged above the supporting plate 4, the fixing mechanism comprises a transverse plate 6 and a pressing plate 61 which are sequentially arranged from top to bottom, a vertical slide rod 8 penetrates through the transverse plate 6 in a sliding manner, the lower end of the slide rod 8 is fixedly connected with the pressing plate 61, a spring 81 is sleeved on the slide rod 8, a holding block 82 is arranged at the upper end of the slide rod 8, a connecting column 62 is fixedly connected with the transverse plate 6, and the connecting column 62 is rotatably connected to the frame 1; a through hole for the fixing post 41 to pass through is formed in the center of the pressing plate 61, the lower surface of the pressing plate 61 is in a concave-convex tooth surface shape, and the lower surface of the pressing plate 61 can abut against the upper surface of the saw blade 9.

As shown in fig. 1, be equipped with the coping mechanism that is used for coping the tooth's socket of saw bit 9 in the frame 1, coping mechanism includes that two symmetries set up the first motor 2 in layer board 4 both sides, the tip fixed mounting of the output shaft of first motor 2 has first connecting sleeve 21, first connecting sleeve 21 threaded connection has the pole of polishing 23 that is used for coping the tooth's socket between saw bit 91 of saw bit 9, the upper end fixed mounting of pole of polishing 23 has second connecting sleeve 22, second connecting sleeve 22 threaded connection has dwang 3, be equipped with rotor blade 31 on the dwang 3.

As shown in fig. 1, a driving assembly for driving the first motor 2 to reciprocate in the horizontal direction is arranged in the rack 1, the driving assembly includes a second motor 5, an output shaft of the second motor 5 is coaxially connected with a first bevel gear 51, half of the first bevel gear 51 is toothed, and half of the first bevel gear 51 is toothless, two second bevel gears 52 are engaged with two sides of the first bevel gear 51, the two second bevel gears 52 are coaxially and jointly connected with a screw 53, the screw 53 is rotatably connected in the rack 1, two ends of the screw 53 are provided with threads, and the directions of the threads are opposite, two ends of the screw 53 are respectively in threaded connection with a slider 54, the slider 54 is slidably connected on the rack 1, a chute matching with the slider 54 is arranged on the rack 1, and the first motor 2 is.

As shown in fig. 1 and 4, a shifting assembly for shifting the supporting plate 4 to rotate is arranged in the rack 1, the shifting assembly comprises a connecting rod 7 fixedly connected to one side of one of the sliding blocks 54, a shifting claw 71 is hinged to the tail end of the connecting rod 7, and a pull rope 72 is connected between the shifting claw 71 and the connecting rod 7; the bottom fixedly connected with vertical axis of rotation 43 of layer board 4, the coaxial fixedly connected with ratchet 44 of axis of rotation 43, and the number of teeth of the wheel number of ratchet 44 is the same with sawtooth 91 number of saw bit 9, stir in the tooth's socket between the teeth of a cogwheel that claw hook 71 can stretch into ratchet 44 to drive ratchet 44 to take place the rotation of certain angle, ratchet 44 drives layer board 4 through axis of rotation 43 and rotates.

The specific implementation mode of the scheme is as follows: in the initial state, the pressing plate 61 of the fixing mechanism is abutted against the supporting plate 4 under the action of the spring 81, and the fixing column 41 on the supporting plate 4 penetrates through the through hole on the pressing plate 61. When the device is used, an operator holds the holding block 82 at the upper end of the sliding rod 8 and pulls upwards for a certain distance, so that the sliding rod 8 drives the pressing plate 61 to move upwards for a certain distance by overcoming the elasticity of the spring 81, the pressing plate 61 is separated from the supporting plate 4, and the fixing column 41 on the pressing plate 61 is separated from the through hole of the pressing plate 61. Then, the saw blade 9 to be polished is sequentially stacked on the supporting plate 4, the fixing posts 41 on the supporting plate 4 sequentially penetrate through the center hole of the saw blade 9, and the limiting clamping blocks 42 on the supporting plate 4 are respectively clamped in tooth grooves among saw teeth 91 of the saw blade 9 to fix the saw blade 9. The operator releases the holding block 82, and presses the pressing plate 61 against the uppermost saw blade 9 of the blade 4 by the elastic force of the spring 81, so that the concave-convex tooth-shaped lower surface of the pressing plate 61 contacts the saw blade 9, and the pressing plate 61 further fixes the saw blade 9 on the blade 4.

The saw blade 9 on the adjusting supporting plate 4 is finely adjusted, so that two tooth grooves on two sides of the saw blade 9 are respectively opposite to the grinding rod 23. Initially, the grinding rods 23 are positioned on either side of the saw blade 9, and at this point the grinding rods 23 do not extend into the gullets of the teeth 91 of the saw blade 9. When polishing operation is carried out, the first motor 2 and the second motor 5 are started simultaneously, and the output shaft of the first motor 2 drives the polishing rod 23 to rotate at a high speed through the first connecting sleeve head 21; the output shaft of the second motor 5 sequentially drives the two second bevel gears 52 to rotate through the first bevel gear 51, the two second bevel gears 52 rotate alternately, so as to drive the screw 53 to rotate forward and backward alternately, the sliding blocks 54 on the screw 53 continuously reciprocate left and right, the two sliding blocks 54 can move in opposite directions or opposite directions alternately, when the two sliding blocks 54 move in opposite directions, the two sliding blocks 54 respectively drive the first motor 2 and the grinding rod 23 to move in opposite directions, the grinding rods 23 rotating at high speed respectively move in the direction of the saw blade 9, and the grinding rods 23 gradually extend into tooth grooves 91 of the saw blade 9 to grind; when the sliding blocks 54 drive the first motor 2 and the grinding rod 23 to move to the extreme positions in opposite directions, the two sliding blocks 54 move in opposite directions under the driving of the screw 53, so that the grinding rod 23 gradually separates from the tooth grooves of the saw teeth 91 of the saw blade 9, and the tooth grooves are ground again in the process that the grinding rod 23 separates from the tooth grooves.

Synchronously, when the slide block 54 moves towards the direction of the saw blade 9, the slide block 54 drives the connecting rod 7 and the toggle claw 71 on the connecting rod 7 to approach the ratchet wheel 44 below the supporting plate 4, and the toggle claw 71 slides from the tooth back of the teeth of the ratchet wheel 44 and extends into the tooth groove between the teeth of the ratchet wheel 44; when the two sliding blocks 54 move oppositely, the sliding blocks 54 drive the connecting rod 7 and the toggle claw hook 71 to move synchronously, after the sliding blocks 54 drive the grinding rod 23 to be separated from the tooth grooves of the saw teeth 91 of the saw blade 9, the pull rope 72 connected between the toggle claw hook 71 and the connecting rod 7 is stretched to the limit length, and in the continuous moving process of the sliding blocks 54, the connecting rod 7 enables the toggle claw hook 71 to toggle the ratchet wheel 44 to rotate for a certain angle through the pull rope 72, and the ratchet wheel 44 drives the supporting plate 4 and the saw blade 9 to rotate for a certain angle synchronously through the rotating shaft 43, so that the tooth grooves of the saw teeth 91 which are not ground on the saw blade 9 are rotated to a processing position, the processing position is opposite to the grinding rod 23, and the grinding rod 23 is waited to.

Synchronously, when the in-process of the sawtooth groove between the sawtooth 91 of the coping saw bit 9 of the grinding rod 23, can produce the sweeps and attach to the grinding rod 23 surface, the rotating rod 3 is still driven to rotate at the in-process of grinding rod 23 pivoted, rotating vane 31 on the rotating rod 3 rotates around the rotating rod 3, and produce decurrent air current, will attach to the sweeps on grinding rod 23 surface and blow away from grinding rod 23, avoid the sweeps to attach to influence the coping effect to the sawtooth 91 within a definite time on grinding rod 23.

In the whole tooth grinding process of the saw blade 9, the driving assembly continuously drives the grinding rod 23 to extend into a tooth groove 91 of the saw teeth on the saw blade 9 so as to grind the tooth groove; and the supporting plate 4 drives the saw blade 9 to rotate by stirring the assembly, tooth grooves among saw teeth 91 of the saw blade 9 are sequentially switched to a processing position, and finally, each tooth groove of the saw blade 9 is continuously and automatically ground quickly.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a high accuracy saw bit gear grinding machine, includes frame (1), be equipped with in frame (1) and be used for placing layer board (4) of saw bit (9) and be used for the coping mechanism of the tooth's socket of coping saw bit (9), its characterized in that: the grinding mechanism comprises two first motors (2) symmetrically arranged on two sides of the supporting plate (4), and an output shaft of each first motor (2) is connected with a grinding rod (23) for grinding the tooth grooves; a driving assembly used for driving the first motor (2) to reciprocate in the horizontal direction is arranged in the rack (1), the driving assembly comprises a second motor (5), an output shaft of the second motor (5) is coaxially connected with a first bevel gear (51), half of the first bevel gear (51) is toothed, and half of the first bevel gear is toothless, two second bevel gears (52) are meshed on two sides of the first bevel gear (51), the two second bevel gears (52) are coaxially and jointly connected with a screw rod (53), the screw rod (53) is rotationally connected in the rack (1), threads are arranged at two ends of the screw rod (53) and are opposite in direction, two ends of the screw rod (53) are respectively in threaded connection with a sliding block (54), the sliding block (54) is slidably connected in the rack (1), and the first motor (2) is fixedly connected to the sliding block (54); the bottom fixedly connected with vertical axis of rotation (43) of layer board (4), axis of rotation (43) coaxial fixedly connected with ratchet (44), and the number of teeth of ratchet (44) is the same with sawtooth (91) number of saw bit (9), is connected with on arbitrary slider (54) and is used for stirring ratchet (44) pivoted and stirs the subassembly, stir the subassembly and include connecting rod (7) of fixed connection in slider (54) one side, the end of connecting rod (7) articulates there is stirring claw hook (71), and stirs and is connected with stay cord (72) between claw hook (71) and connecting rod (7).

2. The high precision saw blade tooth grinding machine of claim 1, wherein: the supporting plate (4) is disc-shaped, a fixing column (41) used for penetrating through a center hole of the saw blade (9) is installed on the upper surface of the supporting plate (4), limiting clamping blocks (42) used for limiting the saw blade (9) are evenly distributed on the upper surface of the supporting plate (4) along the circumference, and the limiting clamping blocks (42) can be clamped in tooth grooves of the saw blade (9).

3. The high precision saw blade tooth grinding machine of claim 1, wherein: the grinding rod (23) is cylindrical, an external thread is arranged at the lower end of the grinding rod (23), a first connecting sleeve head (21) is fixedly mounted at the end part of an output shaft of the first motor (2), and the lower end of the grinding rod (23) is in threaded connection with the first connecting sleeve head (21).

4. A high precision saw blade sharpening machine as defined in claim 3, wherein: the upper end fixed mounting of pole (23) of polishing has second connecting sleeve head (22), second connecting sleeve head (22) can be dismantled and be connected with dwang (3), be equipped with rotor blade (31) on dwang (3).

5. The high precision saw blade tooth grinding machine of claim 1, wherein: still be equipped with the fixed establishment who is used for fixed saw bit (9) in frame (1), fixed establishment is including diaphragm (6) and clamp plate (61) that from top to bottom set gradually, it has vertical slide bar (8) to slide to run through on diaphragm (6), the lower extreme and clamp plate (61) fixed connection of slide bar (8), and the cover is equipped with spring (81) on slide bar (8), the upper end of slide bar (8) is equipped with grips piece (82), diaphragm (6) fixedly connected with spliced pole (62), spliced pole (62) are rotated and are connected on frame (1).

6. The high precision saw blade tooth grinding machine of claim 5, wherein: the lower surface of the pressing plate (61) is in a concave-convex toothed surface shape.