Gear-cutting machine, gear pre-shaping device and gear processing method

Abstract

The present invention discloses a tooth scraping machine, a tooth pre-shaping device and a tooth manufacturing method, wherein the tooth pre-shaping device comprises: a shaping tool for forming a knife mark at a predetermined position of a tooth blank to be scraped, a shaping tool resetting component, and a pressure mechanism for causing the shaping tool to perform the knife mark forming action. After the knife mark is formed by the tooth pre-shaping device, the connection strength between the tooth tip and the main body of the tooth obtained by scraping the tooth is weak, so that the tooth tip can be removed simply and conveniently, and during the process of removing the tooth tip, the main body of the tooth will not be deformed, and no debris like milling will be generated.

Description

Technical Field

[0001] The present invention relates to the technical field of tooth shapers, and in particular, to a tooth shaper and a tooth piece pre-shaping device thereof. Background Art

[0002] Due to the working principle of the tooth shaper, the tip part of the tooth piece obtained after tooth shaping is sharp and pointed, which is disadvantageous for subsequent packaging, processing, transportation, and use. It needs to be removed in the next process after tooth shaping, such as milling with another device to eliminate the adverse effects. However, during the milling process, because the tooth piece is thin and long, it is easy to cause deformation of the tooth piece, thus affecting the heat dissipation performance. In addition, the aluminum chips during tooth tip milling will inevitably enter / stay in the gaps between the tooth pieces, and it is extremely difficult to remove them, seriously affecting the heat dissipation performance.

[0003] The disclosure of the above background art content is only used to assist in understanding the inventive concept and technical solution of the present application. It does not necessarily belong to the prior art of the present application. Without clear evidence indicating that the above content was publicly available on the filing date of the present application, the above background art should not be used to evaluate the novelty and inventiveness of the present application. Summary of the Invention

[0004] To overcome the defects of the foregoing prior art, the present invention provides a tooth piece pre-shaping device for a tooth shaper, including: a shaping tool for forming a knife mark at a predetermined position of a blank to be tooth-shaped, a shaping tool reset component, and a pressing mechanism for causing the shaping tool to perform the action of forming the knife mark.

[0005] The tooth piece pre-shaping device of the present invention may also adopt the following optional / preferred solutions:

[0006] The pressing mechanism is a transmission component connected to a servo motor, a hydraulic transmission mechanism, a cam mechanism, or a ratchet mechanism.

[0007] The ratchet mechanism includes a ratchet and a flower wheel coaxially installed therewith. The outer peripheral edge of the flower wheel is provided with convex parts and concave parts; when the flower wheel rotates to a position where the convex part corresponds to the shaping tool, the shaping tool performs the action of forming the knife mark; under the action of the shaping tool reset component, when the flower wheel rotates to a position where the concave part corresponds to the shaping tool, the shaping tool resets to the highest point.

[0008] The convex parts and concave parts of the flower wheel are alternately and evenly distributed, with a total of 4 - 8.

[0009] It further includes a ratchet drive assembly for driving the flower wheel to rotate, which includes a ratchet plate, a ratchet plate shaft, a ratchet plate hook and a ratchet plate compression spring; the ratchet plate hook drives the ratchet to rotate under the drive of the ratchet plate, thereby driving the flower wheel to rotate; the ratchet plate compression spring is arranged above the ratchet plate and is used to automatically reset the ratchet plate hook after the ratchet plate is reset.

[0010] It further includes a horizontal slide plate assembly for supporting the ratchet drive assembly and moving therewith under the drive of the ratchet drive assembly.

[0011] A limiting member for limiting the horizontal slide plate assembly is also provided, and the limiting member can limit the horizontal slide plate assembly to stop moving following the ratchet drive assembly.

[0012] The shaping tool is configured such that the longitudinal section of the tip part of the shaping tool is triangular, the hypotenuse of the formed tool mark is located on the side of the tooth tip, and the straight edge of the tool mark is located on the opposite side of the tooth tip.

[0013] The cutting edge of the shaping tool is set to be serrated or wavy.

[0014] The present invention also provides a tooth fluting machine, which includes a tooth piece pre-shaping device, a tooth fluting device and a drive mechanism as described in any one of the above, and the drive mechanism is used to drive the tooth piece pre-shaping device to perform pre-shaping before tooth fluting and drive the tooth fluting device to perform tooth fluting after pre-shaping.

[0015] Preferably, the tooth fluting device includes a reciprocating inclined push plate and a tooth fluting knife assembly, the tooth fluting knife assembly is fixedly arranged on the lower surface of the inclined push plate, and the tooth piece pre-shaping device is fixedly arranged on the upper surface of the inclined push plate.

[0016] Further preferably, it further includes a scraping piece for removing the tooth tip of the tooth piece obtained by tooth fluting.

[0017] More preferably, the scraping piece is a brush or a wire wheel.

[0018] The present invention also provides a tooth piece processing method, which includes the following steps:

[0019] Pre-shaping step, forming a shaping indentation with a predetermined depth at a predetermined position on the to-be-tooth-fluted blank.

[0020] Tooth fluting step, fluting the blank to form a tooth piece with the shaping mark having the predetermined depth.

[0021] Repeatedly execute the pre-shaping step and the tooth fluting step.

[0022] Tooth tip removing step, removing the tooth tip above the shaping mark on the tooth piece to obtain a predetermined tooth top structure.

[0023] The tooth segment processing method of the present invention can also adopt the following optional / preferred solutions:

[0024] The predetermined position is at a predetermined distance behind the starting position of the scraping.

[0025] The predetermined depth is 1 / 3 to 1 / 2 of the thickness of the tooth segment body.

[0026] The shaping mark is formed by pressing with a shaping tool or by sawing with a sawing tool.

[0027] The pressing mechanism is a transmission component connected to a servo motor, a hydraulic transmission mechanism, a cam mechanism or a ratchet mechanism.

[0028] The beneficial effects of the present invention include:

[0029] After the tooth tip is pre-shaped by the tooth segment pre-shaping device, the connection strength between the tooth tip and the main body of the tooth segment obtained by scraping is weak, so that the tooth tip can be simply and conveniently removed. During the process of removing the tooth tip, the tooth segment body will not be deformed and no chips will be generated like milling. Description of the Drawings

[0030] Figure 1A is a schematic structural diagram of a tooth segment obtained by directly scraping without pre-shaping treatment in an embodiment.

[0031] Figure 1B is a schematic structural diagram of a tooth segment obtained by scraping after pre-shaping treatment in an embodiment.

[0032] Figure 1C is Figure 1B schematic structural diagram of the tooth segment after removing the tooth tip.

[0033] Figure 2 is a schematic structural diagram of a tooth segment pre-shaping device in an embodiment.

[0034] Figure 3 is Figure 2 partial enlarged structural view of.

[0035] Figure 4 is a schematic partial structural diagram of a scraping machine in an embodiment.

[0036] Figure 5A is Figure 4 schematic structural diagram of the assembled structure at the initial position.

[0037] Figure 5B is Figure 4 schematic structural diagram of the assembled structure in the first intermediate state.

[0038] Figure 5C is Figure 4Schematic diagram of the assembly structure in the second intermediate state.

[0039] Figure 5D is Figure 4 Schematic diagram of the assembly structure in the third intermediate state.

[0040] Figure 5E is Figure 4 Schematic diagram of the assembly structure in the fourth intermediate state.

[0041] Figure 6A Schematic diagram of the structure of a shaping tool of an embodiment.

[0042] Figure 6B Schematic diagram of the structure of a shaping tool of another embodiment. Detailed implementation manners

[0043] The present invention will be further described below in conjunction with Figures 1-5 and specific implementation manners. It should be emphasized that the following description is merely exemplary and not intended to limit the scope of the present invention and its applications. The background part of the present invention may include background information about the problems or environments of the present invention, rather than necessarily describing the prior art. Therefore, the content included in the background art section is not an admission by the applicant of the prior art.

[0044] The concept of the present invention is described as follows: A tooth chip pre-shaping device is added to the original tooth shaper to solve the problem of removing the redundant part on the tooth tip. Specifically, a tool mark with a depth slightly less than the thickness of the tooth chip is pre-shaped (pressed or engraved, etc.) on the inclined surface part where the tooth shaper tool is to be formed in advance. In this way, when the tooth shaper forms the tooth chip, the part above the tool mark (i.e., the tooth tip) and the lower part (i.e., the tooth chip body) form a connection with very weak strength (the weak degree can be controlled according to actual needs). Then, the tooth tip part can be removed simply by scraping with a scraping blade. Experiments show that the pre-shaping method will not cause the tooth chip to deform, and moreover, no aluminum chips are generated when removing the tooth tip, and the removed tooth tip is not easy to fall into the gap between the tooth chips.

[0045] As Figure 1A 、 1B and shown in 1C, they are respectively the schematic diagram of the structure of the tooth chip 1 obtained by directly tooth shaping without pre-shaping treatment, the schematic diagram of the structure of the tooth chip 1 obtained by tooth shaping after pre-shaping treatment, and the schematic diagram of the structure of the tooth chip 1 after removing the tooth tip 102. It can be understood from the figure that for the tooth chip 1 obtained by tooth shaping after pre-shaping treatment, its tooth tip 102 and the tooth chip body 101 are still connected, but due to the existence of the tool mark 103 after pre-shaping treatment, the strength of the connection between the two is greatly reduced. Therefore, the tooth tip 102 can be removed relatively easily. After removal, the tooth chip body 101 will not deform and the top is flat, and no aluminum chips are generated when removing the tooth tip 102.

[0046] Embodiment 1

[0047] As Figure 2 shown, the tooth slice pre-shaping device of this embodiment includes: a shaping tool 2 for forming a tool mark at a predetermined position of the to-be-shoveled tooth blank, a shaping tool resetting member 3, and a pressing mechanism for making the shaping tool perform the action of forming the tool mark. Through the mutual cooperation of the three, the action of forming the tool mark 103 can be cyclically executed, so that the required tool mark 103 can be formed in advance before each tooth shoveling.

[0048] The to-be-shoveled tooth blank is usually an aluminum profile, or can also be a material suitable for tooth shoveling / cutting processing such as aluminum alloy.

[0049] The longitudinal section of the tip part of the shaping tool 2 is preferably set to be triangular, and is preferably configured as: the hypotenuse of the tool mark formed by performing the action of forming the tool mark is located on one side of the tooth tip 102, and the straight side of the tool mark 103 is located on the opposite side of the tooth tip 102. The tool mark 103 obtained by this structure can obtain a flat tooth slice top surface after removing the tooth tip 102.

[0050] The shaping tool 2 realizes the effect of cyclically forming tool marks through the mutual cooperation with the shaping tool resetting member 3, the shaping plate 201, the shaping plate tension spring 202, and the first shaping plate shaft 203.

[0051] The pressing mechanism is a ratchet mechanism, but is not limited thereto, and a transmission member connected to a servo motor, a hydraulic transmission mechanism, a cam mechanism, etc. can also be adopted. In this embodiment, the ratchet mechanism 4 is adopted, which is beneficial to simplifying the structure of the tooth slice pre-shaping device, and does not require complex control operations, and is simple and reliable. Specifically, the ratchet mechanism 4 includes a ratchet 401 and a cam wheel 402 coaxially installed therewith (shaping plate shaft 205). The outer peripheral edge of the cam wheel 402 is provided with a convex part 4021 and a concave part 4022. When the cam wheel 402 rotates to the convex part 4021 corresponding to the shaping tool 2, the shaping tool 2 performs the action of forming the tool mark. Under the action of the shaping tool resetting member 3, when the cam wheel 402 rotates to the concave part 4022 corresponding to the shaping tool 2, the shaping tool 2 resets to the highest point.

[0052] As Figure 3 shown, the convex part 4021 and the concave part 4022 are alternately and evenly distributed, and there are 8 in total, and as a whole, it is in the shape of an eight-equal-part concave and convex petal. Obviously, it can also be six-equal-part, four-equal-part, etc., and only the diameter of the cam wheel 402 needs to be adjusted according to the actual product size and the structural layout of the equipment.

[0053] To ensure the consistency and reliability of the shaping tool 2 in performing the action of forming tool marks, the following structure is also adopted: It further includes a ratchet driving assembly for driving the ratchet 401 and the cam wheel 402 to rotate, which includes a ratchet plate 4011, a ratchet plate shaft 4012, a ratchet plate hook 4013, and a ratchet plate compression spring 4014. The ratchet plate hook 4013 drives the ratchet 401 to rotate under the drive of the ratchet plate 4011, thereby driving the cam wheel 402 to rotate. The ratchet plate compression spring 4014 is arranged above the ratchet plate 4011 and is used to automatically reset the ratchet plate hook 4013 after the ratchet plate 4011 is reset.

[0054] It further includes a horizontal slide plate 4015 for supporting the ratchet driving assembly and moving therewith under the drive of the ratchet driving assembly. In addition, a limiting member for limiting the horizontal slide plate 4015 is provided, and the limiting member can limit the horizontal slide plate 4015 to stop moving following the ratchet driving assembly.

[0055] Among them, one end of the shaping tool resetting member 3 is connected to one end of the shaping plate 201 close to the shaping tool 2, and the other end is connected to the horizontal slide plate 4015; the first shaping plate shaft 203 is arranged at the other end of the shaping plate 201 far from the shaping tool 2. The shaping plate 201 is further provided with a second shaping plate shaft 204 for cooperating with the convex part 4021 and the concave part 4022 of the cam wheel 402. Specifically, it is in direct contact and cooperation with the convex part 4021 and the concave part 4022 through the bearing of the second shaping plate shaft 204, and the bearing of the second shaping plate shaft 204 can be one group or more than two groups. The second shaping plate shaft 204 is preferably arranged at the middle part in the left-right direction on the shaping plate 201.

[0056] Embodiment 2

[0057] The tooth shaper of this embodiment includes the tooth sheet pre-shaping device, the tooth shaping device, and the driving mechanism as described in Embodiment 1 above. The driving mechanism is used to drive the tooth sheet pre-shaping device to perform pre-shaping before tooth shaping and drive the tooth shaping device to perform tooth shaping.

[0058] As Figure 4 shown, it is a partial structural schematic diagram of the tooth shaper, showing the tooth sheet pre-shaping device, the tooth shaping device, the processing platform 5, etc. therein. At the same time, for the convenience of understanding, the aluminum profile 6 to be processed placed on the processing platform 5 is also shown. The aluminum profile 6 can be one or two or more placed side by side.

[0059] The processing platform 5 is arranged on the base. The processing platform 5 is provided with a pair of slide rails 501. The tooth shoveling device and the tooth piece pre-shaping device are connected to the slide rails 501 through a horizontal slide plate 502 and slide plate sliders 503. A horizontal slide plate limit block 504 is arranged outside the slide rails 501.

[0060] The tooth shoveling device and the tooth piece pre-shaping device are installed on the horizontal slide plate 502 and can move along with the movement of the horizontal slide plate 502.

[0061] The tooth shoveling device includes a shovel blade 701, a shovel blade body 702, a press blade block inclined push plate 704 and an inclined push plate limit wheel 705. The tooth shoveling device is arranged on the slide rails 501 through the slide plate sliders 503, so that it can move back and forth. The inclined push plate limit wheel 705 is arranged at the right end of the inclined push plate 704 and is used to limit that the inclined push plate 704 does not exceed a predetermined position when moving to the right.

[0062] Each time the flower wheel 402 rotates one grid, it can drive the shaping plate shaft three 205 to press the shaping plate shaft two 204 to move downward, and then return to the original position. That is, when the convex part 4021 of the flower wheel 402 corresponds to the shaping plate shaft two 204, the shaping tool 2 performs the action of forming the tool mark. When the concave part 4022 of the flower wheel 402 corresponds to the shaping plate shaft two 204, under the action of the shaping tool reset component 3, the shaping tool 2 returns to the original position. The bearing of the shaping plate shaft three 205 is preferably set as a one-way bearing to ensure that the shaping plate shaft three 205 can only rotate in one direction (such as left-handed). When the flower wheel 402 rotates, the outer peripheral surface of the bearing of the shaping plate shaft three 205 always keeps in contact with the outer surface of the flower wheel.

[0063] Hereinafter, Figures 5A - 5E a detailed description will be given to the related working process of tooth shoveling and so on.

[0064] As Figure 5A shown in the figure, at this time, the tooth shoveling machine runs to the rightmost point, that is, the tooth shoveling device and the tooth piece pre-shaping device run to the rightmost point, which can be regarded as the initial position. The inclined push plate 704 moves to the left along the left arrow direction of the reciprocating movement. Since the other end of the shaping plate tension spring 202 on the horizontal slide plate 502 is hung on the screw of the horizontal slide plate limit block 504, the inclined push plate limit wheel 705 closely adheres to the right end face of the inclined push plate 704, and further makes the whole mechanism on the horizontal slide plate 502 move to the left along with the inclined push plate 704. When the auxiliary limit component (such as the screw head section) arranged on the horizontal slide plate 502 contacts the horizontal slide plate limit block 504, the horizontal slide plate 502 stops following and remains in a static state.

[0065] As Figure 5BAs shown, it is a schematic structural diagram of the tooth shoveling device and the tooth piece pre-shaping device in the first intermediate state. Starting from Figure 5A state, the inclined push plate 704 continues to move leftward until it reaches Figure 5B state. At this time, the ratchet plate hook 4013 just touches one tooth surface at the upper end of the ratchet 401. At the same time, the shovel 701 is also about to leave the processing surface of the aluminum profile 6. When the inclined push plate 704 continues to move leftward, it will drive the ratchet 401 to rotate leftward.

[0066] As Figure 5C shown, it is a schematic structural diagram of the tooth shoveling device and the tooth piece pre-shaping device in the second intermediate state. At this time, the ratchet 401 drives the flower wheel 402 to rotate. The convex part 4021 of the flower wheel 402 presses the shaping plate shaft two 204, the entire shaping plate 201 and the shaping tool 2 down to the lowest point. The shaping tool 2 presses a knife mark 103 with a predetermined depth on the processing surface of the aluminum profile 6.

[0067] The inclined push plate 704 continues to move leftward. The ratchet 401 continues to rotate under the drive of the ratchet plate hook 4013 until it reaches the state as shown in Figure 5D shown, which is a schematic structural diagram of the tooth shoveling device and the tooth piece pre-shaping device in the third intermediate state. At this time, the ratchet plate hook 4013 is about to disengage from the ratchet 401. The concave part 4022 of the flower wheel 402 corresponds to the shaping plate shaft two 204. The shaping tool 2 is lifted to the highest point. The shovel 701 retreats above the shaving surface of the aluminum profile 6 (i.e., leaves the shaving surface of the aluminum profile 6).

[0068] As Figure 5E shown, it is a schematic structural diagram of the tooth shoveling device and the tooth piece pre-shaping device in the fourth intermediate state, and also a schematic structural diagram when the inclined push plate 704 moves to the leftmost point. During the process of the inclined push plate 704 moving leftward from Figure 5D to Figure 5E , the tooth shoveling machine moves the aluminum profile 6 one step to the right to prepare for the next tooth shoveling. Subsequently, the inclined push plate 704 moves rightward to the state as shown in Figure 5A . During this process, the shown shovel 701 performs a tooth shoveling. When the ratchet plate hook 4013 encounters the ratchet 401, under the guidance of the inclined plane, it lifts upward with the ratchet plate shaft 4012 as the center. The ratchet plate compression spring 4014 is compressed. When the ratchet plate hook 4013 passes over the ratchet 401, the ratchet hook 4013 resets under the action of the ratchet plate spring 4014. When the right end face of the inclined push plate 704 contacts the inclined push plate limit wheel 705, it drives all the mechanisms on the horizontal sliding plate 502 to move rightward together until it reaches the state as shown in Figure 5AThe state shown. Then, the next cycle begins.

[0069] Example 3

[0070] Based on the above embodiment 2, this embodiment is further provided with a scraper for removing the tooth tip of the tooth piece obtained by tooth scraping. The scraper can be a brush or a wire wheel (wire brush), etc., and the tooth tip is removed by the back and forth sweeping action of the brush or the rotation of the wire wheel. The scraper can be set at an independent tooth tip removal station, located after the tooth scraping station, and the tooth tip is uniformly removed at this station after the aluminum profile is tooth scraped. It can also be set at the tooth scraping station, and the tooth tip is removed immediately after each tooth scraping.

[0071] Example 4

[0072] The gear processing method of this embodiment includes the following steps:

[0073] Pre-shaping step, forming a shaping indentation of a predetermined depth at a predetermined position on the tooth embryo to be shoveled;

[0074] A tooth-scraping step, in which the embryo is scraped to form a tooth piece with a plastic indentation of the predetermined depth;

[0075] The pre-shaping step and the tooth-removing step are executed cyclically;

[0076] The tooth tip removal step is to remove the tooth tip above the shaping indentation to obtain a predetermined tooth top structure.

[0077] Wherein, the predetermined position is located at a predetermined distance behind the starting position of scraping, and the size of the predetermined distance can be determined according to the size of the product to be processed and the accuracy of the processing equipment. The predetermined depth is based on the convenience of removing the tooth tip without affecting the scraping operation, such as being set to 1 / 3 to 1 / 2 of the thickness of the tooth body, or being set to the predetermined depth plus 0.05 to 0.1 mm., which is equal to the thickness of the tooth body.

[0078] In addition, when the device of the first embodiment or the equipment of the second embodiment is used in this embodiment, the shaping indentation is formed by the shaping tool applying pressure, and the pressure mechanism is a transmission component connected to the servo motor, a hydraulic transmission mechanism, a cam mechanism or a ratchet mechanism. The specific processing process is as described in the second embodiment in combination with the attached Figures 5A - 5E Detailed description of the relevant working process. However, those skilled in the art understand that it is not limited to this, for example, Figure 6A and Figure 6BAs shown, the edge of the shaping knife can also be serrated or wavy, that is, (after removing the tooth tips), an R angle can be formed at the adjacent parts of the top surface of the tooth piece and the two side surfaces of the vertical edge. The formation of the shaping indentation can also be saw marks formed by sawing with various suitable sawing tools. The movement and reset of the pre-shaping tool, the movement and reset of the shovel knife, etc. can also be realized by means of a servo motor, a cam mechanism, etc., as long as the purpose of pre-shaping and finally completing the shaping operation can be achieved. It should be noted that, as Figure 6A and Figure 6B The shaping knives shown can all be used in the aforementioned Embodiment 1, Embodiment 2, and Embodiment 3.

[0079] The above content is a further detailed description of the present invention in combination with specific preferred embodiments. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those skilled in the technical field to which the present invention pertains, without departing from the concept of the present invention, several equivalent substitutions or obvious variations can be made, and as long as the performance or use is the same, they should all be regarded as falling within the protection scope of the present invention.

[0080] In the description of this specification, the description with reference to terms such as "an embodiment", "some embodiments", "preferred embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. Without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples. Although the embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions, and alterations can be made herein without departing from the protection scope of the patent application.

Claims

1. A gear pre-shaping device for a gear-reducing machine, characterized in that include: A shaping tool for forming a cutter mark at a predetermined position of the tooth blank to be scraped, a shaping tool resetting component, and a pressure mechanism for causing the shaping tool to perform the action of forming the cutter mark; The pressure applying mechanism is a ratchet mechanism; The ratchet mechanism comprises a ratchet and a flower wheel coaxially mounted therewith, and the outer periphery of the flower wheel is provided with a convex portion and a concave portion; When the flower wheel rotates until the convex portion corresponds to the shaping tool, the shaping tool performs the action of forming a knife mark; Under the action of the shaping tool resetting component, when the flower wheel rotates until the recess corresponds to the shaping tool, the shaping tool is reset to the highest point; The ratchet mechanism also includes a ratchet drive assembly for driving the ratchet and the flower wheel to rotate, which includes a ratchet plate, a ratchet plate shaft, a ratchet plate hook and a ratchet plate compression spring. The ratchet plate hook drives the ratchet to rotate under the drive of the ratchet plate, thereby driving the flower wheel to rotate. The ratchet plate compression spring is arranged above the ratchet plate and is used to automatically reset the ratchet plate hook after the ratchet plate is reset. It also includes a horizontal slide plate, which is used to support the ratchet drive assembly and can move with the ratchet drive assembly; Among them, one end of the shaping tool resetting component is connected to the end of the shaping plate close to the shaping tool, and the other end is connected to the horizontal slide; the shaping plate axis 1 is arranged on the other end of the shaping plate away from the shaping tool; the shaping plate is also provided with a shaping plate axis 2 for cooperating with the convex and concave parts of the flower wheel.

2. The gear pre-shaping device according to claim 1, characterized in that: The convex parts and concave parts of the flower wheel are evenly distributed alternately, and there are 4 to 8 convex parts and concave parts in total.

3. The gear pre-shaping device according to claim 1, characterized in that: A limiting component is also provided for limiting the position of the horizontal slide assembly. The limiting component can limit the horizontal slide assembly so that it stops following the movement of the ratchet drive assembly.

4. The gear pre-shaping device according to claim 1, characterized in that: The shaping tool is configured such that the longitudinal section of the tip of the shaping tool is triangular, the oblique side of the formed tool mark is located on one side of the tooth tip, and the straight side of the tool mark is located on the opposite side of the tooth tip.

5. The gear pre-shaping device according to claim 1, characterized in that: The cutting edge of the shaping tool is set to be sawtooth-shaped or wave-shaped.

6. A scraping machine, characterized in that: It comprises a tooth pre-shaping device, a tooth scraping device and a driving mechanism as described in any one of claims 1 to 5, wherein the driving mechanism is used to drive the tooth pre-shaping device to perform pre-shaping before tooth scraping, and drive the tooth scraping device to perform tooth scraping after pre-shaping.

7. The gear-removing machine according to claim 6, characterized in that: The tooth-shoveling device comprises a reciprocating inclined push plate and a scraper assembly, wherein the scraper assembly is fixedly arranged on the lower surface of the inclined push plate, and the tooth piece pre-shaping device is fixedly arranged on the upper surface of the inclined push plate.

8. The shovel gear machine according to claim 7, characterized in that: It also includes a scraper blade for removing the tooth tip of the tooth piece obtained by scraping the teeth.

9. The shovel gear machine according to claim 8, characterized in that: The scraper is a brush or a wire wheel.

10. A gear processing method, characterized in that: Using the scraping machine according to any one of claims 6 to 9 comprises the following steps: A pre-shaping step, forming a shaping indentation of a predetermined depth at a predetermined position on the tooth embryo to be shoveled; a tooth-shaving step of shaving the embryo to form a tooth piece with a plastic indentation of the predetermined depth; cyclically executing the pre-shaping step and the tooth-removing step; The tooth tip removal step removes the tooth tip above the shaping indentation to obtain a predetermined tooth top structure.

11. The gear processing method according to claim 10, characterized in that: The predetermined position is located at a predetermined distance behind the scraping start position.

12. The gear processing method according to claim 10, characterized in that: The predetermined depth is 1 / 3 to 1 / 2 of the thickness of the tooth plate body, or is set to be equal to the thickness of the tooth plate body after adding 0.05 to 0.1 mm to the predetermined depth.

13. The gear processing method according to claim 10, characterized in that: The shaping indentation is a knife mark formed by pressure applied by a shaping tool, or a saw mark formed by sawing with a sawing tool.

Images