CN104162814B - Tooth punching device and tooth punching method - Google Patents

Abstract

A gear cutting device is used for cutting teeth of workpieces to be toothed. The gear opening device includes a transverse slide block, a fixed block, a cam, a support table, a grinding wheel and a longitudinal slide block. The horizontal sliding block drives the fixed block to reciprocate in the horizontal direction, and the fixed block is rotatably connected to the horizontal sliding block. A matching surface is provided on the side of the master form away from the fixed block, and the shape of the matching surface is the same as that of the toothed surface of the workpiece to be toothed. The support platform supports the former, and the top of the support platform is provided with a roller, and the former is pressed and held on the roller. The grinding wheel is arranged on the side of the fixed block away from the transverse slider, and is set opposite to the workpiece to be geared and rotated on the longitudinal slider. The longitudinal slider is used to drive the grinding wheel close to or away from the toothed workpiece. The above tooth cutting device can be adapted to various tooth cutting surfaces of different shapes, and can automatically carry out tooth cutting on tooth cutting surfaces of different shapes, and the polished teeth are evenly arranged and of the same size. A toothing method is also provided.

Description

Gear opening device and tooth opening method

technical field

The invention relates to a mechanical processing device, in particular to a gear opening device and a gear opening method.

Background technique

At present, ceramic knives and shells generally have a certain arc surface, or have a certain shape. At present, the toothing operation is carried out on the toothed surface of ceramic cutters or shells with a certain shape, usually using manual hand-held grinding wheels to directly grind and tooth the ceramic blades and shells. Since there is no special mechanical device that can regularly grind ceramic blades or shells, operators often need to hold a grinder to gear the toothed surfaces of ceramic blades or shells one by one. There are problems of irregularity and inconsistency in the artificially polished tooth pattern. Therefore, it is unfavorable for the quantized production of ceramic blades or shells with teeth.

Contents of the invention

Based on this, it is necessary to provide a gearing device capable of automatically gearing the gearing surface of a workpiece having a certain shape to be geared.

A gear cutting device, which is used for cutting teeth on a workpiece to be geared, the gear cutting device includes a transverse slider, a fixed block, a master form, a support table, a grinding wheel, and a longitudinal slider;

One side of the fixed block is used to place the workpiece to be toothed, and the transverse slider is arranged on the side of the fixed block away from the workpiece to be toothed, and the transverse slider drives the fixed block along the lateral reciprocating movement, and the fixed block is rotationally connected with the lateral sliding block;

The former is arranged under the fixed block, one side of the former is connected to the fixed block, and the side of the former away from the fixed block is provided with a matching surface, and the shape of the matching surface is The same shape as the tooth surface of the workpiece to be toothed;

The supporting platform is arranged opposite to the matching surface, the supporting platform supports the former, the top of the supporting platform is provided with a roller, the former is pressed and held on the roller, and the roller and The mating surfaces abut against each other, and the former can move on the rollers along the mating surfaces;

The grinding wheel is arranged on the side of the fixed block away from the transverse slider, and is set opposite to the workpiece to be toothed and rotated on the longitudinal slider;

The longitudinal slider is used to drive the grinding wheel close to or away from the toothed workpiece.

In one of the embodiments, the side of the fixed block opposite to the grinding wheel is provided with a boss, the boss is used to fix the workpiece to be cut, and the boss is provided with the workpiece to be cut. The side of the toothed workpiece with the same shape as the tooth surface.

In one of the embodiments, the fixed block includes two opposite fixed pieces, and the former is clamped between the two fixed pieces.

In one of the embodiments, the former is fixedly connected to the two fixing pieces by screws.

In one of the embodiments, the horizontal slider further includes a rotating shaft, the axial direction of the rotating shaft is perpendicular to the moving direction of the horizontal sliding block, shaft holes are opened at one end of the two fixing pieces, and the rotating shaft passes through Located in the shaft hole, the fixed piece is rotatably connected to the transverse sliding block through the rotating shaft.

In one embodiment, the grinding wheel is a resin grinding wheel.

In one embodiment, the thickness of the grinding wheel decreases radially outward.

In one embodiment, the radial section of the annular outer wall of the grinding wheel is arc-shaped, and the radius of curvature corresponding to the arc-shape is 4-10 mm.

A toothing method is also provided.

A toothing method, comprising the following steps:

Provide the above gear opening device;

The horizontal slider slides to drive the fixed block to move, and the master moves on the roller so that the movement track of the fixed block is the same as the shape of the toothed surface, and the horizontal slider drives the fixed block to move a sawtooth distance and then pauses ;

The longitudinal slider drives the grinding wheel to move towards the workpiece to be toothed;

The grinding wheel rotates and gears the workpiece to be geared;

The longitudinal slider drives the grinding wheel away from the workpiece to be toothed to complete the production of a tooth groove.

In one of the embodiments, the workpiece to be toothed is provided with a plurality of tooth grooves, and the horizontal slider drives the fixed block to move a sawtooth distance and then pauses until the longitudinal slider drives the grinding wheel A step away from the workpiece to be toothed and complete the production of a tooth groove is a work unit;

After the longitudinal slider drives the grinding wheel away from the workpiece to be geared to complete the step of making one tooth groove, the method further includes: circulating the working unit multiple times to complete the manufacturing of multiple tooth grooves.

By using the above gearing device to gear the workpiece to be geared, the shape of the matching surface of the master can be set according to the shape of the gear surface of the workpiece to be geared. Since the fixed block and the former are pressed and held on the roller, under the action of pressure, when the first driving member pushes the fixed block to move, the fixed block slides on the roller along the matching surface. Therefore, under certain precision requirements, It is possible to move each point on the toothed surface to the same height and be ground by the grinding wheel, and the grinding wheel can be used for toothing the irregularly shaped toothed surface without adjusting the position. Therefore, the above-mentioned gear cutting device can adapt to various tooth surfaces of different shapes, and can automatically perform tooth cutting on different shapes of tooth surfaces, and the polished serrations are evenly arranged and of the same size, which is beneficial to the tooth cutting of ceramic knives or shells. Quantitative production.

Moreover, the direction of the sawtooth to be drilled on the workpiece to be geared by the gearing device changes with the change of the gearing surface, thus ensuring the gearing effect of the workpiece to be geared. When the workpiece to be geared is a ceramic tool, the sharpness of the ceramic tool can be guaranteed. When the workpiece to be geared is a shell, the aesthetic appearance of the geared shell can be guaranteed.

Description of drawings

Fig. 1 is a perspective view of a tooth opening device according to an embodiment;

Fig. 2 is a top view of the tooth opening device shown in Fig. 1;

Fig. 3 is a partial enlarged view of the tooth opening device shown in Fig. 1;

FIG. 4 is a specific flow chart of a tooth opening method in an embodiment.

detailed description

In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only and are not intended to represent the only embodiments.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terminology used herein in the description of the present invention is only for the purpose of describing specific embodiments, and is not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

A gear cutting device is used for cutting teeth of workpieces to be toothed. The workpiece to be toothed can be a ceramic blade or a shell, etc.

Referring to Fig. 1 and Fig. 2, the gear opening device 100 in the present embodiment comprises a first driving member (not shown), a transverse slider 110, a fixed block 120, a former 130, a support table 140, a second driving member ( Not shown in the figure), longitudinal slider 150 and grinding wheel 160. The first driving member (not shown in the figure) is drivingly connected with the transverse slider 110 . The first driving member drives the transverse slider 110 to expand and contract in the transverse direction. The fixed block 120 is connected with the horizontal slider 110, and the horizontal slider 110 drives the fixed block 120 to move laterally. The fixed block 120 is rotatably connected with the transverse sliding block 110 . One side of the fixed block 120 is used to place the workpiece 10 to be toothed. The cam 130 is disposed on one side of the fixing block 120 . The supporting platform 140 is disposed under the former 130 , and the supporting platform 140 supports the former 130 and the fixing block 120 . The second driving member is drivingly connected to the longitudinal slider 150 . The second driving member drives the vertical slider 150 to expand and contract in the longitudinal direction. The stretching direction of the vertical slider 150 is perpendicular to the stretching direction of the horizontal slider 110 . For convenience of description, the moving direction of the horizontal slider 110 is taken as the X-axis direction, and the moving direction of the vertical slider 150 is taken as the Z-axis direction. The grinding wheel 160 is used for gearing the workpiece 10 to be geared, and the grinding wheel 160 is set opposite to the workpiece 10 to be geared. The longitudinal slider 150 drives the grinding wheel 160 to approach or move away from the workpiece 10 to be toothed.

The first drive member is provided with a first drive shaft (not shown). The first driving shaft is telescopic along its axial direction, that is, the first driving shaft is telescopic along the X-axis direction. The first driving part can be a stepper motor or an air cylinder.

The transverse slider 110 also includes a rotating shaft 111 . The rotating shaft 111 is disposed on a side surface of the horizontal sliding block 110 close to the fixing block 120 . The axial direction of the rotating shaft 111 is perpendicular to the moving direction of the transverse slider 110 . The transverse sliding block 110 is disposed on a side of the fixing block 120 away from the workpiece 10 to be toothed. The horizontal sliding block 110 can drive the fixed block 120 to move.

Specifically, the fixing block 120 is long and narrow. The fixing block 120 includes two fixing pieces 121 disposed opposite to each other. The fixing piece 121 is long and narrow. The extending direction of the fixing piece 121 is the X-axis direction. One end of the two fixing pieces 121 defines a shaft hole. The rotating shaft 111 is disposed in the shaft hole, and the fixing piece 121 is rotatably connected to the rotating shaft 111 . Therefore, when the horizontal sliding block 110 drives the fixed block 120 to translate along the X-axis, the fixed block 120 can also rotate around the rotating shaft 111 . The rotation plane of the fixed piece 120 is parallel to the side of the fixed block 120 where the workpiece 10 to be geared is placed.

Referring to FIG. 3 , the side of the fixing block 120 opposite to the grinding wheel 160 is provided with a boss 123 . The boss 123 is used to fix the workpiece 10 to be geared, and the boss 123 is provided with a side with the same shape as the tooth surface 11 of the workpiece 10 to be geared. When the grinding wheel 160 is grinding the workpiece 10 to be toothed, the boss 123 can prevent the grinding wheel 160 from contacting the surface of the fixing piece 121 and damaging the fixing piece 121 .

The cam 130 is disposed under the fixing block 120 , and the side of the cam 130 away from the fixing block 120 is provided with a matching surface 131 . The shape of the matching surface 131 is the same as that of the tooth surface 11 of the workpiece 10 to be toothed, so that the distance between each point on the matching surface 131 and the corresponding point on the tooth surface 11 is the same.

The side surface of the outer periphery of the workpiece 10 to be toothed is the toothed surface 11 . Specifically, in this embodiment, the former 130 is clamped between the two fixing pieces 121 , and the former 130 and the two fixing pieces 121 are fixedly connected by screws 122 . When the former 130 needs to be replaced, it is only necessary to disassemble the screw 122, replace another former 130, and fix it with the screw 122 again.

Please refer to FIG. 3 . Specifically, in this embodiment, the toothed surface 11 has an arc-shaped area 11 a and a straight area 11 b, and the matching surface 131 is correspondingly provided with an arc-shaped portion 131 a and a straight portion 131 b. The shape of the arc portion 131a is the same as that of the arc region 11a of the workpiece 10 to be toothed.

Please refer to FIG. 1 at the same time, the supporting platform 140 is disposed under the former 130 . The supporting platform 140 is opposite to the matching surface 131 . A roller 141 is disposed on the top of the supporting platform 140 . Specifically, in this embodiment, the supporting platform 140 further includes two opposite arms 142 , and the roller 141 is rotatably mounted on the two arms 142 . Specifically, the supporting platform 140 also includes a bearing (not shown in the figure), and the roller 141 is rotatably connected to the two support arms 142 through the bearing. Relying on the self-gravity of the fixed block 120 and the former 140, the former 130 and the fixed block 120 are pressed on the roller 141, and the roller 141 abuts against the matching surface 131, and when the fixed block 120 moves along the X-axis direction, The former 130 moves on the rollers 141 along the mating surface 131 . Specifically, the straight portion 131b abuts against the roller 141, and the straight portion 131b moves on the roller 141 to perform toothing on the straight region 11b. When the matching surface 131 moves to the arc portion 131a, the roller 141 abuts against the arc portion 131a, the arc portion 131a moves along the roller 141, and the fixed block 120 rotates relative to the rotating shaft 111. Under certain precision requirements , each point of the arc-shaped area 11a can be moved to a position where the grinding wheel 160 is approximately at the same height, so that the grinding wheel 160 can tooth the arc-shaped area 11a.

The second drive member (not shown) is provided with a second drive shaft (not shown). The second drive shaft is telescopic along the Z axis. The axial direction of the first driving shaft is perpendicular to the axial direction of the second driving shaft. The longitudinal slider 150 is drivingly connected with the second drive shaft, and the second driving member drives the longitudinal slider to move along the Z axis. The second driving member can be a stepper motor or an air cylinder.

Please refer to FIG. 1 , the grinding wheel 160 is disposed on a side of the fixed block 120 away from the transverse sliding block 110 , and the grinding wheel 160 is disposed opposite to the workpiece 10 to be toothed. The grinding wheel 160 is rotatably connected with the longitudinal slider 150 , and the longitudinal slider 150 drives the grinding wheel 160 to approach or move away from the workpiece 10 to be toothed. When the grinding wheel 160 is grinding the workpiece 10 to be toothed, the transverse slider 110 supports the fixed block 120 on the other side of the fixed block 120 to prevent the fixed block 120 from being subjected to a large longitudinal pressure from affecting the movement track of the fixed block 120.

In one embodiment, the grinding wheel 160 is a resin grinding wheel. Compared with the traditional diamond grinding wheel, the resin grinding wheel used in the tooth opening device 100 can reduce the cost. Moreover, since the diamond grinding wheel is subjected to a relatively large stress on the surface of the workpiece 10 to be toothed during the toothing process, cracks often appear during the toothing process. However, the aforementioned gear cutting device 100 uses a resin grinding wheel, which can reduce the surface stress on the surface of the workpiece 10 to be geared, and reduce the probability of cracks in the workpiece 10 to be geared.

The thickness of the grinding wheel 160 becomes smaller radially outward. Since a gullet is formed between two teeth, the gullet is roughly V-shaped in shape. Then the thickness of the grinding wheel 160 gradually becomes smaller radially outward, which can facilitate the grinding wheel 160 to form V-shaped tooth grooves.

The annular outer wall of the grinding wheel 160 is the contact surface with the workpiece to be toothed. The radial section of the annular outer wall of the grinding wheel 160 is arc-shaped, and the radius of curvature corresponding to the arc-shape is 4-10 mm. When toothing the ceramic blade, the radius of curvature corresponding to the grinding wheel 160 is 4 mm. When toothing the shell, the radius of curvature corresponding to the grinding wheel 160 is 10 mm.

Utilize above-mentioned toothing device 100 to carry out gearing to the workpiece 10 to be geared, the shape of the matching surface 131 of the template 130 can be selected and set according to the shape of the toothed surface 11 of the workpiece 10 to be geared, so that the geared surface 11 and the matching surface 131 has the same outline shape. When the horizontal slider 110 drives the fixed block 120 to move, due to the gravity of the fixed block 120 and the former 140, the roller 141 supports the fixed block 120 and the former 140. Under the action of pressure, the fixed block 120 moves along the matching surface 131 The roller 141 slides and rotates around the rotating shaft 111 . Therefore, under the requirement of a certain precision, each point on the toothed surface 11 can be moved to the same height of the grinding wheel 160 , so that the toothed surface 11 is toothed. Then the grinding wheel 160 can gear the irregularly shaped gear surface 11 without adjusting the position. Therefore, the above-mentioned gear cutting device 100 can adapt to various tooth cutting surfaces 11 of different shapes, and can automatically perform tooth cutting on tooth cutting surfaces 11 of different shapes, and the polished serrations are evenly arranged and uniform in size, which is beneficial to ceramic knives or shells. Quantitative production of tooth openings.

Moreover, the direction of the sawtooth to be cut on the workpiece 10 to be toothed by the above-mentioned gear cutting device 100 changes with the change of the tooth surface 11, so the tooth cutting effect of the above-mentioned workpiece to be toothed 10 is guaranteed, for example, the sharpness of the ceramic tool is ensured. Degree, enhance the aesthetics of open-toothed shells.

The invention also provides a tooth opening method.

Referring to Fig. 4, the tooth opening method of the present embodiment includes the following steps:

Step S210, providing the above gear opening device.

Step S220, the horizontal slider slides to drive the fixed block to move, the master slides on the roller, and the fixed block rotates around the rotating shaft, so that the motion track of the fixed block is the same as the shape of the tooth surface, and the horizontal slider drives Fixed blocks pausing after moving a sawtooth distance.

In the specific operation process, by turning on the first driving part, the first driving part drives the horizontal sliding block to slide, and then drives the fixed block to move a sawtooth distance and then pauses.

Step S230, the longitudinal slider drives the grinding wheel to move towards the workpiece to be geared.

In a specific operation process, by turning on the second driving member, the second driving member drives the longitudinal slider to move toward the workpiece to be geared.

Step S240, the grinding wheel rotates and gears the workpiece to be geared.

In step S250, the longitudinal slider drives the grinding wheel away from the workpiece to be toothed to complete the production of a tooth groove.

The second driving part drives the longitudinal slider to retract, and the longitudinal slider drives the grinding wheel away from the workpiece to be toothed, and completes the production of a tooth groove.

Specifically, in this embodiment, the workpiece to be toothed is provided with a plurality of tooth grooves, step S220 the horizontal slider drives the fixed block to move a sawtooth distance and then pauses, step S230 the vertical slider drives the grinding wheel to move towards the workpiece to be toothed, step S230 S240 The grinding wheel rotates and gears the workpiece to be geared and S250 The longitudinal slider drives the grinding wheel away from the workpiece to be geared. The step of completing the production of a tooth groove is a work unit.

After the longitudinal slider drives the grinding wheel away from the workpiece to be toothed and completes the step of making one tooth groove, it also includes: cycling the working unit for multiple times to complete the making of multiple tooth grooves.

The above-mentioned embodiments only express several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but should not be construed as limiting the patent scope of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (10)

1. a tooth punching device, is used for treating tooth punching workpiece and carries out tooth punching, it is characterised in that described tooth punching fills Put include the first actuator, transverse slider, fixed block, pattern, support platform, emery wheel, the second actuator with And longitudinal sliding block；

Described first actuator and described transverse slider drive connection, and drive described transverse slider transversely to receive Contracting；

One side of described fixed block be used for placing described in treat that tooth punching workpiece, described transverse slider are located at described Fixed block is away from the described side treating tooth punching workpiece, and described transverse slider drives described fixed block the most reciprocal Move, and described fixed block is rotationally connected with described transverse slider；

Described pattern is located at the lower section of described fixed block, and the side of described pattern is connected with described fixed block, institute Stating pattern and be provided with coupling face away from the side of described fixed block, the shape in described coupling face treats tooth punching with described The shape in the tooth punching face of workpiece is identical；

Described support platform is oppositely arranged with described face of mating, and described support platform supports described pattern, described support The top of platform is provided with roller bearing, and described pattern pressure holding is on described roller bearing, and described roller bearing offsets with described face of mating Connect, and described pattern can move along described coupling face on described roller bearing；

The described fixed block side away from described transverse slider is located at by described emery wheel, and treats tooth punching workpiece with described It is oppositely arranged and rotates and be arranged on described longitudinal sliding block；

Described second actuator is connected with described longitudinal sliding block, and drives described longitudinal sliding block longitudinally-contracted；

Described longitudinal sliding block is used for driving described emery wheel closer or far from described tooth punching workpiece.

Tooth punching device the most according to claim 1, it is characterised in that described fixed block and described emery wheel The side being oppositely arranged is provided with boss, and described boss treats that tooth punching workpiece, described boss are provided with described in fixing With described treat tooth punching workpiece open the side that tooth surface shape is identical.

Tooth punching device the most according to claim 1, it is characterised in that described fixed block includes two phases To the stator arranged, described pattern is held between said two stator.

Tooth punching device the most according to claim 3, it is characterised in that described pattern is solid with said two Connect by screw is fixing between stator.

Tooth punching device the most according to claim 4, it is characterised in that described transverse slider also includes turning Axle, described rotating shaft axially the most vertical with the direction of motion of described transverse slider, one end of said two stator Offering axis hole, described rotating shaft is arranged in described axis hole, and described stator is by described rotating shaft and described horizontal stroke It is rotatably connected to slide block.

Tooth punching device the most according to claim 1, it is characterised in that described emery wheel is resin wheel.

Tooth punching device the most according to claim 1, it is characterised in that the thickness of described emery wheel is radially Outwards diminish.

Tooth punching device the most according to claim 1, it is characterised in that the annular outer side wall of described emery wheel Cross section radially is circular arc, and radius of curvature corresponding to described circular arc is 4～10mm.

9. a tooth punching method, comprises the following steps:

Tooth punching device described in the claims 1～8 any one is provided；

Described transverse slider slides, and drives described fixed block to move, and pattern moves on roller bearing, so that fixing The movement locus of block is identical with the shape in tooth punching face, and transverse slider drives the distance of fixed block one sawtooth of motion Suspend afterwards；

Described longitudinal sliding block drives described emery wheel to treat tooth punching workpiece motion s towards described；

Described emery wheel rotates and treats that tooth punching workpiece carries out tooth punching to described；

Described longitudinal sliding block drives described emery wheel to treat tooth punching workpiece away from described, completes the making of a teeth groove.

Tooth punching method the most according to claim 9, it is characterised in that described in treat to open on tooth punching workpiece Being provided with multiple teeth groove, described transverse slider drives described fixed block to suspend after moving the distance of a sawtooth Step to described longitudinal sliding block drives described emery wheel to treat tooth punching workpiece away from described, completes the making of a teeth groove Step be a working cell；

Drive described emery wheel to treat tooth punching workpiece away from described at described longitudinal sliding block, complete the making of a teeth groove Step after, also include: circulate the most described working cell, to complete the making of multiple teeth groove.