阅读说明：本技术 锯齿加工装置及其方法 (Saw tooth machining device and method ) 是由 王伟毅 汤晓丹 于 2019-09-23 设计创作，主要内容包括：本发明提供了一种锯齿加工装置及其方法,属于机械加工技术领域。它包括机箱,所述的机箱内设有能够分别沿着水平X轴方向和水平Y轴方向前后反复移动的第一横移板,所述的第一横移板上设有沿着竖直方向上下反复移动的卡板,所述的卡板上设有固定部件,所述的第一横移板上设有用于调整切割距离的刻度板,所述的第一横移板的一侧设有活动的磨轮。本发明优点在于该装置在切割手板锯时,磨轮能够改变角度且在切割过程中磨轮与手板锯可同时移动,从而使磨轮与锯齿齿面接触为磨轮面接触,在打磨过程中,防止磨轮外轮廓边缘打磨锯齿齿面产生跳动,造成锯齿齿面为不平整阶梯面,严重影响锯齿锋利度和使用寿命。(The invention provides a sawtooth machining device and a method thereof, and belongs to the technical field of machining. The cutting machine comprises a machine case, wherein a first transverse moving plate capable of repeatedly moving back and forth along the horizontal X-axis direction and the horizontal Y-axis direction is arranged in the machine case, a clamping plate capable of repeatedly moving up and down along the vertical direction is arranged on the first transverse moving plate, a fixing part is arranged on the clamping plate, a scale plate used for adjusting the cutting distance is arranged on the first transverse moving plate, and a movable grinding wheel is arranged on one side of the first transverse moving plate. The invention has the advantages that when the hand saw is cut, the angle of the grinding wheel can be changed, and the grinding wheel and the hand saw can move simultaneously in the cutting process, so that the grinding wheel is in contact with the tooth surface of the sawtooth, and the sawtooth tooth surface polished at the edge of the outer contour of the grinding wheel is prevented from jumping to cause the sawtooth tooth surface to be an uneven step surface in the polishing process, thereby seriously influencing the sharpness of the sawtooth and the service life.)

1. The sawtooth machining device comprises a machine case (24) and is characterized in that a first transverse moving plate (10) capable of repeatedly moving back and forth along the horizontal X-axis direction and the horizontal Y-axis direction is arranged in the machine case (24), a clamping plate (11) capable of repeatedly moving up and down along the vertical direction is arranged on the first transverse moving plate (10), a fixing part (12) is arranged on the clamping plate (11), a scale plate (18) used for adjusting the cutting distance is arranged on the first transverse moving plate (10), and a movable grinding wheel (13) is arranged on one side of the first transverse moving plate (10).

2. The saw-tooth machining device according to claim 1, wherein the fixing part (12) comprises a plurality of limiting shafts (14) arranged at the bottom of the clamping plate (11), the limiting shafts (14) can move up and down repeatedly along the vertical direction, a clamping block (15) is arranged at the bottom of each limiting shaft (14), a gap is formed between each clamping block (15) and the first traverse plate (10), and a hand saw (17) is arranged between each clamping block (15) and the first traverse plate (10).

3. The saw-tooth processing device as claimed in claim 1, wherein a second traverse plate (25) is movably disposed in the housing (24) to be capable of repeatedly moving back and forth along a horizontal X-axis direction, the second traverse plate (25) is movably connected to the first traverse plate (10), and the first traverse plate (10) is capable of repeatedly moving back and forth along a horizontal Y-axis direction of the second traverse plate (25).

4. A saw-tooth machining device according to claim 2, characterized in that the first traverse plate (10) is provided with two parallel scale plates (18), the scale plates (18) are parallel to the two sides of the hand saw (17), the horizontal distance between the two scale plates (18) is the same as the length of the hand saw (17), and the hand saw (17) can extend between the two scale plates (18) and abut against and be movably connected with the two scale plates (18).

5. The saw-tooth processing device as claimed in claim 3, wherein a second traverse plate 25 is movably provided in the housing 24 to be capable of repeatedly moving back and forth along the horizontal X-axis direction, the second traverse plate 25 being movably connected to the first traverse plate 10, and the first traverse plate 10 can be repeatedly moved back and forth along the horizontal Y-axis direction of the second traverse plate 25, the bottom of the second traverse plate (25) is movably connected with two guide rods (26) which are fixedly arranged in the case (24), one side of the second traverse board (25) is provided with a first driver (19) which is fixedly arranged in the case (24), the output shaft of the first driver (19) is connected with the second traverse plate (25), the second traverse plate (25) is provided with a second driver (20), and the end part of an output shaft of the second driver (20) is connected with the first traverse plate (10).

6. The sawtooth machining device as claimed in claim 1, characterized in that a slide shaft (21) is fixedly arranged on the first traverse plate (10) in the vertical direction, a top plate (22) parallel to the first traverse plate (10) is fixedly arranged on the end of the slide shaft (21) far away from the first traverse plate (10), a third driver (23) is arranged on the top plate (22), the output shaft of the third driver (23) faces downwards vertically and is fixed with the clamping plate (11), and a slide block (27) movably connected with the slide shaft (21) is arranged on the end of the clamping plate (11) close to the slide shaft (21).

7. A method for processing sawteeth takes the axis of a panel saw (17) as the y axis, the extending direction of the sawteeth is the x axis, and the z axis is vertical to the plane of the saw surface, and is characterized by comprising the following steps:

the method comprises the following steps: grinding the hand saw (17) with a first tooth surface, adjusting the angle of the grinding wheel (13), and enabling the grinding wheel (13) to form an angle beta with the z axis according to the manufacturing requirement₁，0°≦β₁<60 DEG, the grinding wheel (13) is moved in a first direction so that the grinding wheel (13) forms an angle alpha, 0 DEG with the x-axis<α<30 degrees, and the grinding wheel (13) moves to the hand saw (17) along the angle and cuts a certain distance, and the hand saw (17) is fixed;

step two: the grinding wheel (13) moves along a second direction, the second direction is opposite to the first direction, and the hand saw (17) moves along the y axis at the moment;

step three: the hand saw (17) is subjected to second gear grinding, and according to the manufacturing requirement, the angle between the grinding wheel (13) and the z axis is beta₂，0°≦β₂<60 degrees, the grinding wheel (13) moves along a third direction, the angle formed by the grinding wheel (13) and the x axis in the third direction is delta, the grinding wheel moves towards the saw blade and cuts a certain distance of 0 degree<δ<30 degrees, the hand saw (17) is fixed;

step four: the grinding wheel (13) moves along a fourth direction, the fourth direction is opposite to the third direction, and the hand saw (17) moves along the y axis at the moment;

step five: carrying out third tooth surface tooth grinding on the hand saw (17), wherein according to the manufacturing requirement, the grinding wheel (13) moves along a fifth direction, the fifth direction is a direction with an angle theta between the grinding wheel (13) and the y axis, wherein the angle theta is less than or equal to 0 degree and less than or equal to 50 degrees, and the hand saw (17) is fixed at the moment;

step six: the grinding wheel (13) is moved in a sixth direction, which is the opposite direction to the fifth direction, and the hand saw (17) is moved along the y-axis at this time.

8. The method of claim 7, wherein the hand saw (17) is moved in the y-axis an even multiple of the pitch of the two teeth.

9. The method of claim 7, wherein the grinding wheel (13) is angled at an angle β to the z-axis₁Or beta₂And β₁And beta₂Are 0 deg. and 35 deg., respectively.

10. The method of claim 7, wherein the grinding wheel (13) is moved towards the blade along an angle α of the grinding wheel (13) to the x-axis when the grinding wheel (13) performs a first flank grinding of the hand saw (17), and wherein α is 15 °, and wherein the grinding wheel (13) is moved towards the blade along an angle δ of the grinding wheel (13) to the x-axis when the grinding wheel (13) performs a second flank grinding of the hand saw (17), and wherein δ is 15 °.

Technical Field

The invention belongs to the technical field of machining, and relates to a sawtooth machining device and a method thereof.

Background

The saw is a common tool in life, the design of different sawteeth influences the sharpness and the service life of the saw, the existing sawteeth are designed into different tooth shapes for ensuring the sharpness and the service life of the sawteeth, but the existing sawteeth of the saw are usually formed by grinding the sawteeth according to the pre-designed sawtooth shape in the machining process by a gear grinding device, the gear grinding device mainly grinds the sawteeth through a grinding wheel, and when the existing grinding device and method grind the sawtooth edge face, the outer contour edge of the grinding wheel is usually ground, so that the grinding wheel is in non-grinding wheel face contact with the sawtooth tooth face, and the grinding wheel is in grinding wheel tip contact. In the actual polishing process, the sawtooth tooth surface polished by the edge of the outline of the grinding wheel jumps, so that the sawtooth tooth surface is an uneven stepped surface, and the sharpness and the service life of the sawtooth are seriously influenced.

For example, chinese patent document discloses a gear grinding machine [ patent application No.: [ CN201420517778.5] comprising a frame, a grinding head device, a grinding head adjusting support plate, a motor, a workpiece positioning and clamping dragging mechanism and a cooling device, wherein the grinding head adjusting support plate is arranged on the upper end surface of the frame, the grinding head device is fixedly arranged on one side of the grinding head adjusting support plate, the grinding head adjusting support plate drives the grinding head device to move, the motor is arranged on one side of the frame, the workpiece positioning and clamping dragging mechanism is arranged in the frame at the lower end of the grinding head device, the motor is connected with the workpiece positioning and clamping dragging mechanism through a belt, the workpiece positioning and clamping dragging mechanism drives the grinding head adjusting support plate to move, the cooling device is arranged at the lower end of the workpiece positioning and clamping dragging mechanism, the utility model has simple structure and low cost, but in the grinding process, the sawtooth tooth surface polished at the edge of the outer contour of the grinding wheel can generate, the sharpness and the service life of the saw teeth are seriously influenced.

Disclosure of Invention

The present invention has been made in view of the above problems, and an object of the present invention is to provide a saw-tooth machining apparatus.

Another object of the present invention is to provide a method of machining a serration.

In order to achieve the purpose, the invention adopts the following technical scheme:

the sawtooth machining device comprises a case, wherein a first transverse moving plate capable of repeatedly moving back and forth along the horizontal X-axis direction and the horizontal Y-axis direction is arranged in the case, a clamping plate capable of repeatedly moving up and down along the vertical direction is arranged on the first transverse moving plate, a fixing part is arranged on the clamping plate, a scale plate used for adjusting the cutting distance is arranged on the first transverse moving plate, and a movable grinding wheel is arranged on one side of the first transverse moving plate.

In the sawtooth machining device, the fixing part comprises a plurality of limiting shafts arranged at the bottom of the clamping plate, the limiting shafts can move up and down repeatedly along the vertical direction, clamping blocks are arranged at the bottoms of the limiting shafts, gaps are reserved between the clamping blocks and the first transverse moving plate, and a panel saw is placed between the clamping blocks and the first transverse moving plate.

In the sawtooth processing device, the second traverse plate is movably arranged in the case and can repeatedly move back and forth along the horizontal X-axis direction, the second traverse plate is movably connected with the first traverse plate, and the first traverse plate can repeatedly move back and forth along the horizontal Y-axis direction of the second traverse plate.

In the sawtooth machining device, the first transverse moving plate is provided with two parallel scale plates, the scale plates are parallel to two sides of the hand saw, the horizontal distance between the two scale plates is the same as the length of the hand saw, and the hand saw can extend into the space between the two scale plates and is abutted against and movably connected with the two scale plates.

In the sawtooth machining device, a second transverse moving plate can be movably arranged in a machine case and can move back and forth repeatedly along the horizontal X-axis direction, the second transverse moving plate is movably connected with a first transverse moving plate, the first transverse moving plate can move back and forth repeatedly along the horizontal Y-axis direction of the second transverse moving plate, two guide rods fixedly arranged in the machine case are movably connected to the bottom of the second transverse moving plate, a first driver fixedly arranged in the machine case is arranged on one side of the second transverse moving plate, an output shaft of the first driver is connected with the second transverse moving plate, a second driver is arranged on the second transverse moving plate, and the end part of the output shaft of the second driver is connected with the first transverse moving plate.

In the sawtooth machining device, a sliding shaft arranged in the vertical direction is fixedly arranged on the first transverse moving plate, a top plate parallel to the first transverse moving plate is fixedly arranged at the end part, far away from the first transverse moving plate, of the sliding shaft, a third driver is arranged on the top plate, an output shaft of the third driver faces downwards vertically and is fixed with the clamping plate, and a sliding block movably connected with the sliding shaft is arranged at the end part, close to the sliding shaft, of the clamping plate.

A method for processing sawteeth takes the axis of a panel saw as a y axis, the extension direction of the sawteeth is an x axis, and a z axis is vertical to the plane of a saw surface, and is characterized by comprising the following steps:

the method comprises the following steps: grinding the first tooth surface of the hand saw, adjusting the angle of the grinding wheel, and enabling the angle between the grinding wheel and the z axis to be beta according to the manufacturing requirement₁，0°≦β₁<60 DEG, the grinding wheel moves along the first direction to make the angle between the grinding wheel and the x-axis reach alpha, 0 DEG<α<30 degrees, and the grinding wheel moves to the panel saw along the angle and cuts for a certain distance, and the panel saw is fixed;

step two: the grinding wheel moves along a second direction, the second direction is opposite to the first direction, and the panel saw moves along the y axis at the moment;

step three: grinding the hand saw with the second tooth surface, wherein the angle between the grinding wheel and the z axis is beta according to the manufacturing requirement₂，0°≦β₂<60 degrees, the grinding wheel moves along a third direction, the angle formed by the grinding wheel and the x axis in the third direction is delta, the grinding wheel moves towards the saw blade and cuts a certain distance of 0 degree<δ<30 degrees, the panel saw is fixed;

step four: the grinding wheel moves along a fourth direction, the fourth direction is opposite to the third direction, and the panel saw moves along the y axis at the moment;

step five: grinding a third tooth surface of the hand saw, wherein the grinding wheel moves along a fifth direction according to the manufacturing requirement, the fifth direction is a direction with an angle theta between the grinding wheel and the y axis, wherein the angle theta is more than or equal to 0 degree and less than or equal to 50 degrees, and the hand saw is fixed at the moment;

step six: the grinding wheel moves in a sixth direction, which is the opposite direction from the fifth direction, and the hand saw moves along the y-axis at this time.

In the above method of processing saw teeth, the distance of the hand saw moving along the y-axis is an even multiple of two tooth pitches.

In the above method of saw-tooth machining, the angle between the grinding wheel and the z-axis is beta₁Or beta₂And β₁And beta₂Are 0 deg. and 35 deg., respectively.

In the above method for processing saw teeth, when the grinding wheel grinds the first tooth surface of the hand saw, the grinding wheel moves towards the saw blade along an angle α formed by the grinding wheel and the x axis, and α is 15 °, and when the grinding wheel grinds the second tooth surface of the hand saw, the grinding wheel moves towards the saw blade along an angle δ formed by the grinding wheel and the x axis, and δ is 15 °.

Compared with the prior art, the invention has the advantages that:

1. the device is when the cutting hand saw, and the emery wheel can change the angle and can remove simultaneously with the hand saw at cutting process emery wheel to make emery wheel and sawtooth flank of tooth contact be the emery wheel face contact, at the in-process of polishing, prevent that emery wheel outline edge from polishing sawtooth flank of tooth and producing and beating, cause the sawtooth flank of tooth to be unevenness ladder face, seriously influence sawtooth sharpness and life.

2. Under the same material, the sawtooth is satisfying under the condition of sharpness, and sharpness life is the longest.

3. The third tooth surface is polished by the grinding wheel surface, the surface is flat and smooth, the sharpness of the saw teeth is enhanced, and the service life of the saw teeth is prolonged.

Drawings

FIG. 1 is a schematic view of a chassis;

FIG. 2 is a schematic structural view of a gear grinding mechanism in the cabinet;

FIG. 3 is a schematic view of another orientation of the card;

FIG. 4 is a schematic xy-plane view of the panel saw;

fig. 5 is a partial enlarged view of the serrations on the hand saw.

In the figure, a first traverse plate 10, a clamping plate 11, a fixed part 12, a grinding wheel 13, a limiting shaft 14, a clamping block 15, a rubber cushion block 16, a panel saw 17, a scale plate 18, a first driver 19, a second driver 20, a sliding shaft 21, a top plate 22, a third driver 23, a case 24, a second traverse plate 25, a guide rod 26 and a sliding block 27.

Detailed Description