阅读说明：本技术 一种双面齿同步带的加工装置及其加工方法 (Machining device and machining method for double-sided tooth synchronous belt ) 是由 洪元昌 于 2021-08-25 设计创作，主要内容包括：本发明公开了一种双面齿同步带的加工装置及其加工方法,包括机架,机架上设有相对设置的上模固定板和下模固定板,下模固定板上固定安装有下齿板；还包括上齿板,上齿板与下齿板的相对面上均设有齿状结构；所述上齿板上方固定有活动块,上模固定板上设有活动槽,活动块置于活动槽内,并可在活动槽内移动；所述上齿板侧面安装有调节螺杆,调节螺杆一端与上齿板螺纹配合,另一端设有旋转手柄,调节螺杆驱使上齿板相对下齿板发生水平位移。本发明采用调节螺杆来带动上齿板水平移动,刻度盘上的刻度可以更加精准地调节上下齿盘之间的错位距离,从而满足互质数同步带压制过程中,需要多次改变错位距离的要求,降低加工成本。(The invention discloses a device and a method for processing a double-sided tooth synchronous belt, wherein the device comprises a rack, an upper die fixing plate and a lower die fixing plate which are oppositely arranged are arranged on the rack, and a lower toothed plate is fixedly arranged on the lower die fixing plate; the tooth-shaped structure is arranged on the opposite surfaces of the upper toothed plate and the lower toothed plate; a movable block is fixed above the upper toothed plate, a movable groove is formed in the upper die fixing plate, and the movable block is arranged in the movable groove and can move in the movable groove; an adjusting screw is installed on the side face of the upper toothed plate, one end of the adjusting screw is in threaded fit with the upper toothed plate, a rotating handle is arranged at the other end of the adjusting screw, and the adjusting screw drives the upper toothed plate to horizontally displace relative to the lower toothed plate. According to the invention, the upper toothed plate is driven by the adjusting screw to move horizontally, and the dislocation distance between the upper fluted disc and the lower fluted disc can be adjusted more accurately by the scales on the dial, so that the requirement of changing the dislocation distance for multiple times in the pressing process of the mutually prime number synchronous belt is met, and the processing cost is reduced.)

1. A processing device for a double-sided tooth synchronous belt comprises a rack, wherein an upper die fixing plate and a lower die fixing plate which are oppositely arranged are arranged on the rack, and a lower toothed plate is fixedly arranged on the lower die fixing plate; the tooth-shaped structure is arranged on the opposite surfaces of the upper toothed plate and the lower toothed plate;

the method is characterized in that: a movable block is fixed above the upper toothed plate, a movable groove is formed in the upper die fixing plate, and the movable block is arranged in the movable groove and can move in the movable groove; an adjusting screw is arranged on the side surface of the upper toothed plate, one end of the adjusting screw is in threaded fit with the upper toothed plate, and a rotating handle is arranged at the other end of the adjusting screw; a dial is fixed on the adjusting screw, and scales are arranged on the circumference of the dial; the adjusting screw drives the upper toothed plate to horizontally displace relative to the lower toothed plate.

2. The apparatus for processing a double-sided toothed timing belt according to claim 1, wherein: and the rack is provided with a pressing assembly for driving the upper toothed plate to move up and down relative to the lower toothed plate.

3. A processing method of a double-sided tooth synchronous belt is characterized in that: using the processing device of claim 1, placing a synchronous belt pressed with internal teeth on a working position between an upper toothed plate and a lower toothed plate, wherein the internal teeth are meshed with a toothed structure of the lower toothed plate; when the pressing is carried out for the first time, the starting points of the upper toothed plate and the lower toothed plate are aligned, and the upper toothed plate presses the synchronous belt downwards, so that external teeth are formed outside the synchronous belt; then the upper gear plate moves upwards, and the pressed synchronous belt part moves out of the working position, so that the non-pressed synchronous belt part enters the working position; judging whether the upper toothed plate needs to be adjusted or not according to the numerical relationship between the inner teeth and the outer teeth, calculating the distance needing to be moved, then rotating the rotating handle according to the scale on the dial, and adjusting the screw rod to push the upper toothed plate to horizontally displace relative to the lower toothed plate, wherein the horizontal displacement distance is consistent with the dislocation distance of the inner teeth and the outer teeth; after the upper toothed plate is adjusted, the upper toothed plate continues to press the synchronous belt downwards to form the external teeth, and the like, and the pressing is repeated until the synchronous belt is molded.

4. The process of claim 3 wherein: setting the number of the inner teeth as M, the number of the outer teeth as N and M, N as prime numbers of each other, supposing that the synchronous belt is pressed for b times, b is 3 or 4 or 5, when M is a multiple of b, the number of teeth of the lower toothed plate is M/b, N cannot divide b completely, N is set after N/b is rounded, and the number of teeth of the upper toothed plate is N + 1; when the pressing is carried out for the first time, the starting points of the upper toothed plate and the lower toothed plate are aligned; after each time of pressing, the upper toothed plate needs to move backwards by the length of (N + 1-N/b) external teeth, and so on, and after each time of pressing, the upper toothed plate needs to move backwards by the length of (N + 1-N/b) external teeth; here, the starting direction of the timing belt press is forward, and the reverse is backward.

5. The process of claim 3 wherein: setting the number of the inner teeth as M, the number of the outer teeth as N and M, N as prime numbers of each other, supposing that the synchronous belt is pressed for b times, b is 3 or 4 or 5, when N is a multiple of b, the number of teeth of the upper toothed plate is N/b, M cannot divide b completely, and the number of teeth of the lower toothed plate is M +1 after M/b is taken as a whole; when the pressing is carried out for the first time, the starting points of the upper toothed plate and the lower toothed plate are aligned; then, when the upper toothed plate is pressed each time, the upper toothed plate needs to move forwards for (M + 1-M/b) internal tooth length; here, the starting direction of the timing belt press is forward, and the reverse is backward.

6. The process of claim 3 wherein: setting the number of the inner teeth as M, the number of the outer teeth as N and M, N as prime numbers of each other, supposing that the synchronous belt is pressed for b times, b is 3 or 4 or 5, and when all M, N can not divide b completely, setting the integer of M/b as M, then the number of teeth of the lower toothed plate is M + 1; setting the integer N/b as N, and the number of teeth of the upper toothed plate as N + 1; when the pressing is carried out for the first time, the starting points of the upper toothed plate and the lower toothed plate are aligned; after that, every time of pressing, theoretically, the upper toothed plate needs to move backwards for (N + 1-N/b) external tooth lengths, the lower toothed plate needs to move backwards for (M + 1-M/b) internal tooth lengths, and when the lower toothed plate is fixed, the upper toothed plate needs to move [ (M + 1-M/b) internal tooth lengths- (N + 1-N/b) external tooth lengths ], a positive number means that the upper toothed plate moves forwards, and a negative number means that the upper toothed plate moves backwards; here, the starting direction of the timing belt press is forward, and the reverse is backward.

7. The process of claim 3 wherein: setting the number of the inner teeth as M, the number of the outer teeth as N, a common factor a exists in M, N, a is 3 or 4 or 5, the number of teeth of the lower toothed plate is M/a, and the number of teeth of the upper toothed plate is N/a; during each pressing, the starting points of the upper toothed plate and the lower toothed plate are aligned.

Technical Field

The invention belongs to the technical field of synchronous belts, and particularly relates to a machining device and a machining method for a double-sided tooth synchronous belt.

Background

The double-sided tooth synchronous belt is recognized and accepted by industries such as machinery, textile, precise instruments and meters, petrochemical industry, communication cables and the like and is widely applied by the characteristics of light structure, no slip meshing transmission, low noise and the like. It not only integrates the advantages of gear transmission, chain transmission and belt transmission, but also overcomes the defects of slipping and elongation of other transmission belts, etc. so as to form a unique transmission mode, and it also has the advantages of constant speed ratio, large speed range, compact structure, farm multi-shaft transmission, oil resistance, moisture resistance and no need of lubrication, etc. and is suitable for various fields. The successful development of the double-sided tooth synchronous belt shows the superiority in the fields of requiring one belt for transmission and having opposite directions, or requiring extremely compact installation position, or requiring high transmission requirements such as main transmission and auxiliary transmission linkage; ultra-strong winding performance, ultra-high tensile strength, precise meshing, low signal-to-noise ratio and the like.

The pitch and tooth form on the inside and outside face are different and the same in order to drive the parts with different structures. In general, when a double-sided toothed synchronous belt is produced, because the synchronous belt is a complete circular ring, a pressing die needs to press in batches, and how to divide the batches needs to consider the corresponding relation between the number of the inner teeth and the number of the outer teeth. If the number of the inner teeth and the outer teeth has a common factor, for example, the inner teeth is 88, the outer teeth is 52, and the common factor of the two is 4, then pressing can be completed by 4 times by using dies of the upper die 13 teeth and the lower die 22 teeth, and the problem of dislocation does not exist. However, the number of the inner teeth and the outer teeth may be prime numbers to each other, and although such a timing belt does not cause vibration or noise due to resonance effect, only one inner tooth and one outer tooth are present at the same starting point, and all the other teeth are displaced. That is to say, when the first time is suppressed, after the first inner and outer teeth are aligned and suppressed, the starting points of the inner and outer teeth which are pressed next time are not aligned, and the aligned molds cannot be used, so that the molds with the upper and lower teeth staggered by the same size can be selected according to the difference between the inner and outer teeth. For example, in the case of a synchronous belt with 92 internal teeth and 55 external teeth, the lower die presses 23 internal teeth and the upper die presses 13.75 external teeth in 4 cases, that is, the accumulated displacement between the upper die and the lower die is 0.25 external teeth. Therefore, the synchronous belt is pressed by the dies with the staggered teeth of the upper die and the lower die, the whole synchronous belt machining process is complex, and the whole machining cost is greatly increased.

Disclosure of Invention

The invention aims to provide a device and a method for processing a double-sided tooth synchronous belt, which can change the relative horizontal positions of an upper die and a lower die and meet the whole processing requirement of a relatively prime number synchronous belt.

Therefore, the first technical scheme of the invention is as follows: a processing device for a double-sided tooth synchronous belt comprises a rack, wherein an upper die fixing plate and a lower die fixing plate which are oppositely arranged are arranged on the rack, and a lower toothed plate is fixedly arranged on the lower die fixing plate; the tooth-shaped structure is arranged on the opposite surfaces of the upper toothed plate and the lower toothed plate;

the method is characterized in that: a movable block is fixed above the upper toothed plate, a movable groove is formed in the upper die fixing plate, and the movable block is arranged in the movable groove and can move in the movable groove; an adjusting screw is arranged on the side surface of the upper toothed plate, one end of the adjusting screw is in threaded fit with the upper toothed plate, and a rotating handle is arranged at the other end of the adjusting screw; a dial is fixed on the adjusting screw, and scales are arranged on the circumference of the dial; the adjusting screw drives the upper toothed plate to horizontally displace relative to the lower toothed plate.

Preferably, the rack is provided with a pressing assembly for driving the upper toothed plate to move up and down relative to the lower toothed plate.

The other technical scheme is as follows: a processing method of a double-sided tooth synchronous belt is characterized in that the processing device is used, the synchronous belt with pressed internal teeth is placed on a working position between an upper toothed plate and a lower toothed plate, and the internal teeth are meshed with a toothed structure of the lower toothed plate; when the pressing is carried out for the first time, the starting points of the upper toothed plate and the lower toothed plate are aligned, and the upper toothed plate presses the synchronous belt downwards, so that external teeth are formed outside the synchronous belt; then the upper gear plate moves upwards, and the pressed synchronous belt part moves out of the working position, so that the non-pressed synchronous belt part enters the working position; judging whether the upper toothed plate needs to be adjusted or not according to the numerical relationship between the inner teeth and the outer teeth, calculating the distance needing to be moved, then rotating the rotating handle according to the scale on the dial, and adjusting the screw rod to push the upper toothed plate to horizontally displace relative to the lower toothed plate, wherein the horizontal displacement distance is consistent with the dislocation distance of the inner teeth and the outer teeth; after the upper toothed plate is adjusted, the upper toothed plate continues to press the synchronous belt downwards to form the external teeth, and the like, and the pressing is repeated until the synchronous belt is molded.

Preferably, the number of the inner teeth is M, the number of the outer teeth is N, and M, N are prime numbers of each other, assuming that the synchronous belt is pressed b times, b is 3 or 4 or 5, when M is a multiple of b, the number of teeth of the lower toothed plate is M/b, N cannot divide b by b, N is N after N/b is rounded, and the number of teeth of the upper toothed plate is N + 1; when the pressing is carried out for the first time, the starting points of the upper toothed plate and the lower toothed plate are aligned; after each time of pressing, the upper toothed plate needs to move backwards by the length of (N + 1-N/b) external teeth, and so on, and after each time of pressing, the upper toothed plate needs to move backwards by the length of (N + 1-N/b) external teeth; here, the starting direction of the timing belt press is forward, and the reverse is backward.

Preferably, the number of the inner teeth is M, the number of the outer teeth is N, and M, N are prime numbers of each other, assuming that the synchronous belt is pressed b times, b is 3 or 4 or 5, when N is a multiple of b, the number of teeth of the upper toothed plate is N/b, M cannot divide b completely, and the number of teeth of the lower toothed plate is M +1 when M/b is taken as a whole; when the pressing is carried out for the first time, the starting points of the upper toothed plate and the lower toothed plate are aligned; then, when the upper toothed plate is pressed each time, the upper toothed plate needs to move forwards for (M + 1-M/b) internal tooth length; here, the starting direction of the timing belt press is forward, and the reverse is backward.

Preferably, the number of the inner teeth is M, the number of the outer teeth is N, and M, N are prime numbers of each other, assuming that the synchronous belt is pressed b times, b is 3, 4 or 5, when all M, N cannot divide b completely, if M is obtained after M/b is rounded, the number of teeth of the lower toothed plate is M + 1; setting the integer N/b as N, and the number of teeth of the upper toothed plate as N + 1; when the pressing is carried out for the first time, the starting points of the upper toothed plate and the lower toothed plate are aligned; after that, every time of pressing, theoretically, the upper toothed plate needs to move backwards for (N + 1-N/b) external tooth lengths, the lower toothed plate needs to move backwards for (M + 1-M/b) internal tooth lengths, and when the lower toothed plate is fixed, the upper toothed plate needs to move [ (M + 1-M/b) internal tooth lengths- (N + 1-N/b) external tooth lengths ], a positive number means that the upper toothed plate moves forwards, and a negative number means that the upper toothed plate moves backwards; here, the starting direction of the timing belt press is forward, and the reverse is backward.

Preferably, the number of the inner teeth is M, the number of the outer teeth is N, a common factor a exists in M, N, a is 3 or 4 or 5, the number of teeth of the lower toothed plate is M/a, and the number of teeth of the upper toothed plate is N/a; during each pressing, the starting points of the upper toothed plate and the lower toothed plate are aligned.

The upper die fixing plate and the lower die fixing plate are fixed on the rack, the lower toothed plate is used for positioning the synchronous belt, the internal teeth of the synchronous belt are pressed in advance, and the lower toothed plate is meshed with the internal teeth for positioning when the external teeth are machined; after the synchronous belt is placed, the pressing assembly can enable the upper gear plate to be pressed downwards, so that the outer teeth are pressed; one end of the adjusting screw is in threaded fit with the upper toothed plate, the other end of the adjusting screw is provided with a rotating handle, when the rotating handle is rotated, the adjusting screw rotates and pushes the upper toothed plate, and the upper toothed plate horizontally moves in the movable groove through the movable block, so that the upper toothed plate and the lower toothed plate are staggered; the scales on the circumference of the dial can enable the upper toothed plate to move more accurately relative to the lower toothed plate.

According to the invention, the upper toothed plate is driven by the adjusting screw to move horizontally, and the dislocation distance between the upper fluted disc and the lower fluted disc can be adjusted more accurately by the scales on the dial, so that the requirement of changing the dislocation distance for multiple times in the pressing process of the mutually prime number synchronous belt is met, and the processing cost is reduced.

Drawings

The following detailed description is made with reference to the accompanying drawings and embodiments of the present invention

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a schematic diagram of a gear with 88 internal teeth and 52 external teeth;

fig. 4 is a gear diagram of 92 internal teeth and 55 external teeth.

Labeled as: the device comprises an upper die fixing plate 1, a movable groove 11, a lower die fixing plate 2, a lower toothed plate 3, an upper toothed plate 4, a movable block 5, an adjusting screw rod 6, a rotating handle 7, a dial 8, a synchronous belt 9, internal teeth 10 and external teeth 12.

Detailed Description

See the drawings. The synchronous belt processing device comprises a rack, wherein an upper die fixing plate 1 and a lower die fixing plate 2 which are oppositely arranged are arranged on the rack, and a lower toothed plate 3 is fixedly arranged on the lower die fixing plate 2; the tooth-shaped structure is characterized by also comprising an upper tooth plate 4, wherein tooth-shaped structures are arranged on the opposite surfaces of the upper tooth plate 4 and the lower tooth plate 3; a movable block 5 is fixed above the upper toothed plate 4, a movable groove 11 is formed in the upper die fixing plate 1, and the movable block 5 is arranged in the movable groove 11 and can move in the movable groove 11; a connecting block is fixed on the side surface of the upper toothed plate 4, a threaded hole is formed in the connecting block, one end of an adjusting screw 6 is matched with the threaded hole in the connecting block, a rotating handle 7 is arranged at the other end of the adjusting screw, and the adjusting screw pushes the upper toothed plate 4 to move horizontally through the connecting block; a dial 8 is fixed on the adjusting screw 6, and scales are arranged on the circumference of the dial; the adjusting screw 6 drives the upper toothed plate 4 to horizontally displace relative to the lower toothed plate 3. Be equipped with the pressing component that drives the relative lower pinion rack 3 of pinion rack 4 and reciprocate in the frame, after the hold-in range was placed in place, pressing component can make and go up pinion rack 4 and push down, forms the external tooth.

The double-sided tooth synchronous belt is divided into two conditions, one is that the number of the inner teeth and the number of the outer teeth have a common factor, and the other is that the number of the inner teeth and the number of the outer teeth are mutually prime numbers.

Example one

As shown in fig. 3, when the number of the internal teeth of the synchronous belt is 88 and the number of the external teeth of the synchronous belt is 52, a common factor of 4 exists between the internal teeth and the external teeth, that is, 4 central coincidence points a exist, so that the pressing can be completed by 4 times by using dies with 13 teeth of the upper die and 22 teeth of the lower die, and the starting points of the upper toothed plate and the lower toothed plate are aligned each time.

Placing a synchronous belt 9 with pressed internal teeth 10 on a working position between an upper toothed plate 4 and a lower toothed plate 3, wherein the internal teeth 10 are meshed with a toothed structure of the lower toothed plate 3; when the first pressing is carried out, the end parts of the starting points of the upper toothed plate 4 and the lower toothed plate 3 are aligned, and the upper toothed plate 4 presses down the synchronous belt, so that external teeth 12 are formed outside the synchronous belt; then the upper toothed plate 4 moves upwards, and the pressed synchronous belt part moves out of the working position, so that the non-pressed synchronous belt part enters the working position; and repeating the pressing until the synchronous belt is molded.

Example two

As shown in fig. 4, when the number of the internal teeth of the synchronous belt is 92 and the number of the external teeth is 55, the two are prime numbers, that is, only one point B exists, the internal teeth and the external teeth coincide, the synchronous belt is pressed for 4 times, the number of teeth of the lower toothed plate is 23, the number of teeth of the external teeth is 55/4=13.75, the number of teeth of the upper toothed plate is 13 after rounding; when the pressing is carried out for the first time, the points B of the upper toothed plate and the lower toothed plate are aligned; after each time of pressing, the upper toothed plate needs to move backwards by 0.25 external tooth length, and by analogy, the upper toothed plate needs to move backwards by 0.25 external tooth length in each time of pressing; that is, the upper toothed plate B and the lower toothed plate B are aligned for the first time; for the second time, the starting point of the lower toothed plate is located at the point C1, the starting point of the upper toothed plate is located at the point D1, and the difference between the starting point of the lower toothed plate and the starting point of the upper toothed plate is 0.25 of the length of the outer teeth; thirdly, the starting point of the lower toothed plate is located at the point C2, the starting point of the upper toothed plate is located at the point D2, and the difference between the starting point of the lower toothed plate and the starting point of the upper toothed plate is 0.5 of the length of the outer teeth; fourthly, the starting point of the lower toothed plate is located at the point C3, the starting point of the upper toothed plate is located at the point D3, the difference between the starting points is 0.75 external tooth length, here, the pressing starting direction of the synchronous belt is front, and vice versa.

Placing a synchronous belt 9 with pressed internal teeth 10 on a working position between an upper toothed plate 4 and a lower toothed plate 3, wherein the internal teeth 10 are meshed with a toothed structure of the lower toothed plate 3; when the first pressing is carried out, the end parts of the starting points of the upper toothed plate 4 and the lower toothed plate 3 are aligned, and the upper toothed plate 4 presses down the synchronous belt, so that external teeth 12 are formed outside the synchronous belt; then the upper toothed plate 4 moves upwards, and the pressed synchronous belt part moves out of the working position, so that the non-pressed synchronous belt part enters the working position; the rotating handle is rotated according to the scales on the dial, and the adjusting screw pushes the upper toothed plate to move backwards by 0.25 external teeth; after the upper toothed plate is adjusted, the upper toothed plate continues to press the synchronous belt downwards to form the external teeth 12, and by analogy, the pressing is repeated until the synchronous belt is molded.

EXAMPLE III

When the number of the inner teeth of the synchronous belt is 91 and the number of the outer teeth is 56, the inner teeth and the outer teeth are prime numbers, the synchronous belt is pressed for 4 times, the number of teeth of the upper toothed plate is 14, 91/4=22.75 of the inner teeth is 22 after rounding, and the number of teeth of the lower toothed plate is 23; when the pressing is carried out for the first time, the starting points of the upper toothed plate and the lower toothed plate are aligned; after each time of pressing, the internal teeth are pressed by 0.25 more, theoretically, the lower toothed plate moves backwards by 0.25 internal tooth length, but the lower toothed plate is fixed, so that the upper toothed plate needs to move forwards by 0.25 internal tooth length relative to the lower toothed plate, and by analogy, the upper toothed plate needs to move forwards by 0.25 internal tooth length every time of pressing; that is to say, pinion rack aligns about the first time, and pinion rack about the second time differs 0.25 internal tooth length, and pinion rack about the third time differs 0.5 internal tooth length, and pinion rack about the fourth time differs 0.75 internal tooth length, and here, hold-in range suppression starting point direction is preceding, otherwise is the back.

Placing a synchronous belt 9 with pressed internal teeth 10 on a working position between an upper toothed plate 4 and a lower toothed plate 3, wherein the internal teeth 10 are meshed with a toothed structure of the lower toothed plate 3; when the first pressing is carried out, the end parts of the starting points of the upper toothed plate 4 and the lower toothed plate 3 are aligned, and the upper toothed plate 4 presses down the synchronous belt, so that external teeth 12 are formed outside the synchronous belt; then the upper toothed plate 4 moves upwards, and the pressed synchronous belt part moves out of the working position, so that the non-pressed synchronous belt part enters the working position; the rotary handle is rotated according to the scales on the dial, and the adjusting screw pushes the upper toothed plate to move forwards for 0.25 internal tooth length; after the upper toothed plate is adjusted, the upper toothed plate continues to press the synchronous belt downwards to form the external teeth 12, and by analogy, the pressing is repeated until the synchronous belt is molded.

Example four

When the number of the inner teeth of the synchronous belt is 91 and the number of the outer teeth is 55, the inner teeth and the outer teeth are prime numbers, the synchronous belt is pressed for 4 times, 55/4=13.75 of the outer teeth, the number of teeth of the upper toothed plate is 13 after rounding, 91/4=22.75 of the inner teeth, the number of teeth of the lower toothed plate is 22 after rounding, and the number of teeth of the upper toothed plate is 23; when the pressing is carried out for the first time, the starting points of the upper toothed plate and the lower toothed plate are aligned; after each pressing, theoretically, the upper toothed plate needs to move backwards by 0.25 external tooth length, the lower toothed plate needs to move backwards by 0.25 internal tooth length, and when the lower toothed plate is fixed, the upper toothed plate needs to move (0.25 internal tooth length-0.25 external tooth length), positive number means that the upper toothed plate moves forwards, and negative number means that the upper toothed plate moves backwards; here, the starting direction of the timing belt press is forward, and the reverse is backward.