Gear shaft deburring and chamfering device

Abstract

The application relates to a gear shaft chamfering device, in particular to a gear shaft deburring and chamfering device which comprises a deburring and chamfering assembly. The deburring and chamfering assembly comprises a connecting piece, a connecting shaft, a fourth driving part, the connecting piece is provided with a first insertion hole which penetrates through the connecting piece, one end of the connecting shaft penetrates through the first insertion hole and the other end is connected with the fourth driving part, the middle section of the connecting piece is further provided with an annular protrusion; two first annular grinding knives which are oppositely arranged and are arranged on the connecting piece, and each first annular grinding knife is provided with an annular matching surface on the side close to the gear part; two second annular grinding knives, the inner walls of the two second annular grinding knives are respectively in contact with the two annular matching surfaces; and a pulling assembly. The gear shaft chamfering device can effectively utilize the structural configuration to realize the advantages of not easily bending the gear shaft, various chamfering modes and chamfering the bevel gear.

Description

Technical Field

[0001] This application relates to a gear shaft chamfering device, and more specifically to a deburring and chamfering device for a gear shaft. Background Technology

[0002] Current methods for chamfering gears often involve using cutting tools to chamfer the gear shaft. However, due to the small size of the cutting tools, they wear significantly during the chamfering process, necessitating frequent tool replacements or re-grinding. Alternatively, methods such as... Figure 5 The gear shaft chamfering device shown uses a direct pressing method to chamfer both ends of the gear shaft. However, when the gear shaft is a long shaft, the direct pressing method will cause the gear shaft to bend, resulting in a large circular runout, which will affect the chamfering effect.

[0003] Therefore, there is a need for a deburring and chamfering device for gear shafts that is not prone to bending, has various chamfering methods, and can chamfer bevel gears. Summary of the Invention

[0004] The main purpose of this application is to provide a deburring and chamfering device for gear shafts, wherein the deburring and chamfering device for gear shafts can effectively utilize its own structural configuration to achieve the advantages of not easily bending the gear shaft and having a variety of chamfering methods.

[0005] Another objective of this application is to provide a deburring and chamfering device for a gear shaft, wherein the deburring and chamfering device for the gear shaft includes a deburring and chamfering assembly, the deburring and chamfering assembly includes two first annular grinding blades and two second annular grinding blades, the two first annular grinding blades are arranged opposite to each other, the two first annular grinding blades are configured to chamfer the gear portion by direct compression, and each first annular grinding blade has an annular mating surface on the side near the gear portion, the inner walls of the two second annular grinding blades respectively contact the two annular mating surfaces, and are configured to move a predetermined distance in a direction closer to each other, thereby chamfering the gear portion by applying an axial force to both ends of the gear portion, thereby reducing the circular runout of the long gear shaft.

[0006] Another objective of this application is to provide a deburring and chamfering device for gear shafts, wherein the deburring and chamfering device for gear shafts has a simple structure, is easy to operate, does not involve complex manufacturing processes and expensive materials, has high economic efficiency, and is easy to promote and use.

[0007] To achieve at least one of the above-mentioned objectives, this application provides a deburring and chamfering device for a gear shaft, wherein the deburring and chamfering device for the gear shaft includes:

[0008] A workbench, said workbench being placed on the ground,

[0009] A clamping assembly, wherein the gear shaft is mounted on the clamping assembly, and the clamping assembly is mounted on the worktable; and

[0010] A deburring and chamfering assembly, wherein the deburring and chamfering assembly is disposed on the worktable and is configured to chamfer both ends of the gear portion, and the deburring and chamfering assembly comprises:

[0011] One connector,

[0012] One connecting shaft,

[0013] A fourth driving component, wherein the connector has a first insertion hole through the connector, one end of the connecting shaft passes through the first insertion hole and the other end is connected to the fourth driving component, and the middle section of the connector also has an annular protrusion;

[0014] Two first annular grinding cutters are arranged opposite each other and both first annular grinding cutters are disposed on the connecting member. The sides of the two first annular grinding cutters that are close to each other are in contact with both sides of the annular protrusion. The sides of the two first annular grinding cutters that are close to each other have a first grinding surface. Each first annular grinding cutter has an annular mating surface on the side of its close to the gear portion.

[0015] Two second annular grinding cutters, the inner walls of which respectively contact the two annular mating surfaces; and

[0016] A pulling component is provided at the middle section of the annular protrusion and connected to the side of the two second annular grinding blades that are close to each other. The pulling component is configured to drive the second annular grinding blades to move a predetermined distance in the direction of approaching each other.

[0017] In one or more embodiments of this application, the clamping assembly includes a second drive assembly and a third drive assembly, which are disposed opposite to each other. The second drive assembly includes a second housing, a second drive component, and a clamping plate. The second housing is disposed on the worktable, and the second drive component is disposed inside the second housing. The clamping plate is disposed on the side of the second housing near the third drive assembly and is connected to the second drive component. The third drive assembly includes a third housing, a third drive component, and a third rotating shaft. The third housing is placed on the worktable and spaced a predetermined distance from the second housing. The third drive component is disposed inside the third housing, and one end of the third rotating shaft is connected to the third drive component, while the other end passes through the third housing near the side of the second housing and is disposed on the outside.

[0018] In one or more embodiments of this application, the dimension of the side of the first annular grinding cutter away from the annular protrusion is larger than the dimension of the side of the first annular grinding cutter closer to the annular protrusion.

[0019] In one or more embodiments of this application, each of the two annular grinding blades has a second grinding surface and a third grinding surface on its adjacent sides, and the second grinding surface is located between the third grinding surface and the first grinding surface. In addition, the angle of the second grinding surface is greater than the angle of the third grinding surface, wherein the angle of the second grinding surface is 70°-75° and the angle of the third grinding surface is 40°-45°.

[0020] In one or more embodiments of this application, each of the second annular grinding tools has two oppositely arranged second connecting holes, and both second connecting holes penetrate the second annular grinding tool.

[0021] In one or more embodiments of this application, each of the pulling components includes a first housing, a second insertion hole on one side of the first housing, the second insertion hole penetrating the first housing, and the two ends of the second insertion hole respectively facing two second connecting holes. In addition, each of the pulling components also includes two connecting rods, each of the connecting rods including an insertion end and a stop end, the insertion end being connected to the stop end, the two stop ends being disposed in the second insertion holes and spaced apart by a predetermined distance, the two insertion ends respectively passing through the corresponding two second insertion holes and located on the opposite side of the two second annular grinding blades.

[0022] In one or more embodiments of this application, a magnetic block is provided at the end of the abutment that is away from the insertion end, and an electromagnet is provided at the center of the second insertion hole. In addition, a distance sensor is installed on both sides of the first housing, and the two distance sensors correspond to the two second annular grinding tools respectively.

[0023] In one or more embodiments of this application, the wall surface forming the second insertion hole and near the annular protrusion also has two opposing first mounting grooves, and the two first mounting grooves are respectively near the two ends of the second insertion hole. The side forming the first mounting groove and near the electromagnet also has a sliding groove, and the sliding groove is connected to the first mounting groove. In addition, the side of the first housing near the annular protrusion has two opposing second mounting grooves, and the two second mounting grooves are respectively connected to the two sliding grooves.

[0024] In one or more embodiments of this application, the pulling assembly further includes two moving rods, each of the moving rods including a stop portion and an insertion portion, the stop portion being connected to the insertion portion and the stop portion being disposed in the first mounting groove, the end of the insertion portion opposite to the stop portion being placed in the sliding groove, and a rotating member being disposed on the insertion portion, the rotating member being threadedly connected to the insertion portion and being placed in the second mounting groove.

[0025] In one or more embodiments of this application, each of the pulling components further includes a base, which is detachably disposed on the annular protrusion and located between the two second annular grinding blades. The first housing is detachably disposed on the top of the base, and the top of the base also has two opposing third mounting grooves, which respectively correspond to the two second mounting grooves. Each of the pulling components further includes two fifth driving components, each of the fifth driving components including a fifth driving member and a gear member. The fifth driving member is disposed in the third mounting groove, and the fifth driving member is also connected to the gear member. The gear member is meshed with the rotating member. Attached Figure Description

[0026] These and / or other aspects and advantages of this application will become clearer and more readily understood from the following detailed description of embodiments of this application taken in conjunction with the accompanying drawings, wherein:

[0027] Figure 1 The figure shows a schematic diagram of a deburring and chamfering device for a gear shaft.

[0028] Figure 2 The figure shows a partially enlarged view of a deburring and chamfering device for a gear shaft.

[0029] Figure 3 The figure shows a partial schematic diagram of a deburring and chamfering device for a gear shaft. Figure 1 .

[0030] Figure 4 The figure shows a partial schematic diagram of a deburring and chamfering device for a gear shaft. Figure 2 .

[0031] Figure 5 The diagram illustrates an existing gear shaft chamfering device. Detailed Implementation

[0032] The terms and words used in the following specification and claims are not limited to their literal meaning, but are used solely by the inventors to enable a clear and consistent understanding of this application. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of this application is provided for illustrative purposes only and not for the purpose of limiting the application as defined in the appended claims and their equivalents.

[0033] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0034] While ordinal numbers such as "first," "second," etc., will be used to describe various components, this does not limit which components are used. The term is used only to distinguish one component from another. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component, without departing from the teachings of the inventive concept. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. It will also be understood that the terms “comprising” and / or “having” as used in this specification specify the presence of the described features, numbers, steps, operations, components, elements or combinations thereof, without excluding the presence or addition of one or more other features, numbers, steps, operations, components, elements or groups thereof.

[0036] Schematic deburring and chamfering device for gear shafts

[0037] refer to Figures 1 to 4 According to a preferred embodiment of the present invention, a deburring and chamfering device for a gear shaft includes a worktable 10 placed on the ground. A clamping assembly 20 is provided on the side of the worktable 10 facing away from the ground. The clamping assembly 20 is used to clamp the gear shaft. Additionally, a deburring and chamfering assembly 30 is also provided on the side of the worktable 10 facing away from the ground. The deburring and chamfering assembly 30 is located on one side of the clamping assembly 20 and is configured to perform a deburring and chamfering process on the gear shaft placed on the clamping assembly 20. Specifically, as shown... Figure 1 and 2The gear shaft shown includes a gear portion 100. The deburring and chamfering assembly 30 is used to chamfer both ends of the gear portion 100. Those skilled in the art should understand that while chamfering both ends of the gear portion 100, burrs at both ends are removed simultaneously. Additionally, a first drive assembly 200 is provided on the side of the worktable 10 facing away from the ground. The first drive assembly 200 has a movable slider 300, and the deburring and chamfering assembly 30 is mounted on the slider 300, moving closer to or further away from the gear portion 100 as the slider 300 moves. It should be noted that when the slider 300 moves a predetermined distance closer to the gear part 100, the deburring and chamfering assembly 30 is configured to perform a deburring and chamfering process on the gear part 100 by direct compression or clamping from both sides. That is, by direct compression, the deburring and chamfering assembly 30 directly compresses both ends of the gear part 100 and advances a predetermined distance through the movement of the slider 300, thereby chamfering both ends of the gear part 100. By clamping from both sides, the slider 300 moves the deburring and chamfering assembly 30 to a predetermined position, causing the two sides of the deburring and chamfering assembly 30 to move inward, thereby chamfering both ends of the gear part 100.

[0038] It should be noted that when the gear shaft is a short shaft, directly pressing the gear part 100 will not cause the gear shaft to bend significantly, thus not affecting the chamfering of the gear part 100. However, when the gear shaft is a long shaft, directly pressing will cause the gear shaft to bend, resulting in significant circular runout, which will affect the operation of the deburring and chamfering assembly 30. The method of clamping from both sides can effectively avoid this problem. That is, the deburring and chamfering assembly 30 continuously retracts inward while simultaneously applying an axial force to both ends of the gear part 100. Compared with the radial force of direct pressing, the axial force can effectively reduce the bending deformation of the long gear shaft, thereby reducing the circular runout when the gear shaft rotates.

[0039] Further, the clamping assembly 20 includes a second drive assembly 21 and a third drive assembly 22, which are disposed opposite to each other. The second drive assembly 21 includes a second housing 211, a second drive component, and a clamping plate 212. The second housing 211 is disposed on the worktable 10, and the second drive component is disposed within the second housing 211. The clamping plate 212 is disposed on the side of the second housing near the third drive assembly 22 and is connected to the second drive component. It should be noted that the second drive component is configured to drive the clamping plate 212 to rotate, and the clamping plate 212 is configured to clamp one end of the gear shaft. When the clamping plate 212 rotates, the gear shaft rotates accordingly. It should be noted that the third drive assembly 22 includes a third housing 221, a third drive component, and a third rotating shaft 222. The third housing 221 is placed on the worktable 10 and spaced a predetermined distance from the second housing 211. The third drive component is disposed within the third housing 221. One end of the third rotating shaft 222 is connected to the third drive component, and the other end passes through the third housing 221 near the second housing 211 and is located on the outside. The rotating shaft is configured to accommodate the other end of the gear shaft. Those skilled in the art should understand that when the gear shaft is a short shaft, the user can limit the position of the gear shaft using only the second drive assembly 21, or move the third drive assembly 22 a predetermined distance to allow the end of the gear shaft to engage with the rotating shaft. If the gear shaft is a long shaft, the user can clamp the gear shaft using a single or double ejector pin.

[0040] It should be noted that the deburring and chamfering assembly 30 includes a connector 31, a connecting shaft 32, and a fourth driving component 33. The connector 31 has a first insertion hole that penetrates through the connector 31. One end of the connecting shaft 32 passes through the first insertion hole, and the other end is connected to the fourth driving component 33. The fourth driving component 33 is mounted on the slider 300 and is configured to drive the connector 31 to rotate. It should also be noted that the middle section of the connector 31 has an annular protrusion 311.

[0041] In addition, the deburring and chamfering assembly 30 also includes two first annular grinding blades 34, which are arranged opposite to each other and are both disposed on the connector 31. The sides of the two first annular grinding blades 34 that are close to each other are in contact with the two sides of the annular protrusion 311. It should be noted that each first annular grinding blade 34 has multiple evenly distributed first connecting holes. The user can use multiple screws to engage with the first connecting holes and fix them on the annular protrusion 311, thereby defining the position of the two first annular grinding blades 34.

[0042] Furthermore, the two first annular grinding blades 34 have a first grinding surface 341 on the side of their mutual proximity. The two first annular grinding blades 34 chamfer both ends of the gear portion 100 by direct compression. That is, the slider 300 moves a predetermined distance toward the gear portion 100 so that the two first grinding surfaces 341 press against both ends of the gear portion 100, thereby chamfering the gear portion 100. Specifically, the two first annular grinding blades 34 are applicable when the gear shaft is a short shaft.

[0043] It should be noted that each of the first annular grinding cutters 34 has an annular mating surface 342 on the side near the gear portion 100, and the annular mating surface 342 is an inclined surface.

[0044] In addition, the deburring and chamfering assembly 30 also includes two second annular grinding blades 35. The inner walls of the two second annular grinding blades 35 are in contact with the two annular mating surfaces 342 respectively. Since the size of the side of the first annular grinding blade 34 away from the annular protrusion 311 is larger than the size of the side of the first annular grinding blade 34 close to the annular protrusion 311, the two second annular grinding blades 35 can only move towards each other. When the two second annular grinding blades 35 move away from each other, the second annular grinding blades 35 will be blocked by the annular mating surfaces 342, thereby limiting the movement direction of the second annular grinding blades 35, that is, chamfering the two ends of the gear end by axial extrusion force.

[0045] Furthermore, each of the second annular grinding cutters 35 has a second grinding surface 351 and a third grinding surface 352 on its adjacent sides, with the second grinding surface 351 located between the third grinding surface 352 and the first grinding surface 341. Additionally, the angle of the second grinding surface 351 is greater than the angle of the third grinding surface 352, wherein the angle of the second grinding surface 351 is between 70° and 75°, preferably 75°, and the angle of the third grinding surface 352 is between 40° and 45°, preferably 45°. It should also be noted that when chamfering the gear shaft, the gear portion 100 may be conical. Since the tooth heights at both ends of the bevel gear are inconsistent, it is not advisable to use the same depth of cut. The third grinding surface 352 is suitable when the gear portion 100 is a bevel gear.

[0046] It should be noted that each of the second annular grinding cutters 35 has two oppositely arranged second connecting holes, and both second connecting holes penetrate the second annular grinding cutter 35.

[0047] The deburring and chamfering assembly 30 further includes two pulling components 36, which are arranged opposite to each other and located between the two second annular grinding blades 35. Both pulling components 36 are also disposed on the annular protrusion 311. It is worth mentioning that each pulling component 36 cooperates with the two second annular grinding blades 35 and is configured to pull the two second annular grinding blades 35, thereby causing the two second annular grinding blades 35 to move closer to each other.

[0048] Furthermore, each of the pulling components 36 includes a first housing 361, one side of which has a second insertion hole 3601. The second insertion hole 3601 penetrates the first housing 361, and both ends of the second insertion hole 3601 are respectively aligned with two second connecting holes. Additionally, each of the pulling components 36 includes two connecting rods 362, each including an insertion end and a stop end. The insertion end and the stop end are connected, and both stop ends are disposed within the second insertion holes 3601 and spaced at a predetermined distance. The two insertion ends pass through corresponding second insertion holes 3601 and are located on opposite sides of the two second annular grinding blades 35. It should be noted that the opposite ends of the two insertion ends are connected to external screws, thereby enabling the connecting rod 362 to pull the second annular grinding blade 35, and the size of the stop end is larger than the size of the insertion end. Additionally, a magnetic block 363 is provided at the end of the abutment that is away from the insertion end, and an electromagnet 364 is provided at the center of the second insertion hole 3601. When the electromagnet 364 is energized, the two magnetic blocks 363 move a predetermined distance toward the electromagnet 364, and at the same time drive the connecting rod 362 to move a predetermined distance toward each other, thereby causing the two second annular grinding blades 35 to move toward each other, so that the side of the two second annular grinding blades 35 that is close to each other can contact the two ends of the gear end.

[0049] It should also be noted that a distance sensor 365 is installed on both sides of the first housing 361, and the two distance sensors 365 correspond to the two second annular grinding blades 35 respectively. Additionally, one of the pulling components 36 is equipped with a pair of distance sensors 365, while the other pulling component 36 does not require any distance sensors 365. It should be noted that both the distance sensors 365 and the electromagnet 364 are connected to an external control terminal; that is, when both distance sensors 365 detect that the corresponding second annular grinding blade 35 is no longer moving, the battery is de-energized.

[0050] It should be noted that the wall surface forming the second insertion hole 3601 and near the annular protrusion 311 also has two opposing first mounting grooves 3602, and the two first mounting grooves 3602 are respectively near the two ends of the second insertion hole 3601. It should also be noted that the side forming the first mounting groove 3602 and near the electromagnet 364 also has a sliding groove 3603, and the sliding groove 3603 communicates with the first mounting groove 3602. Additionally, the side of the first housing 361 near the annular protrusion 311 has two opposing second mounting grooves 3602. 604, the two second mounting slots 3604 are respectively connected to the two sliding grooves 3603. In addition, the pulling assembly also includes two moving rods 37. Each moving rod 37 includes a stop part and an insertion part. The stop part is connected to the insertion part and is disposed in the first mounting slot 3602. The end of the insertion part away from the stop part is placed in the sliding groove 3603. It should be noted that a rotating member 38 is also provided on the insertion part. The rotating member 38 is threadedly connected to the insertion part and is placed in the second mounting slot 3604.

[0051] In addition, each of the pulling components 36 further includes a base 39, which is detachably disposed on the annular protrusion 311 and located between the two second annular grinding blades 35. The first housing 361 is detachably disposed on the top of the base 39, and the top of the base 39 also has two oppositely arranged third mounting grooves 3901, which respectively correspond to the two second mounting grooves 3604. Each of the pulling components 36 further includes two fifth drive components 400, each of the fifth drive components 400 including a fifth drive component 4001 and a gear component 4002. The fifth drive component 4001 is disposed in the third mounting groove 3901 and is also connected to the gear component 4002. The gear component 4002 is meshed with the rotating component 38. It is worth mentioning that the fifth driving component 4001 is configured to drive the gear component 4002 to rotate, and the rotating component 38 rotates along with the gear component 4002. Since the rotating component 38 is also threadedly connected to the insertion part, when the rotating component 38 rotates, the two connecting rods 362 will move a predetermined distance in a direction closer to or further apart from each other. That is, when the two connecting rods 362 move a predetermined distance in a direction closer to each other, the abutting part presses against the abutting end, thereby causing the two connecting rods 362 to move in a direction closer to each other, thereby causing the two second annular grinding cutters 35 to move in a direction closer to each other, so that the two second annular grinding cutters 35 chamfer the gear part 100. When the processing is completed, the gear component 4002 reverses, the two moving rods 37 reset, and at the same time, the electromagnet 364 reverses the current, thereby causing the electromagnet 364 to repel the two magnetic blocks 363, thereby causing the two connecting rods 362 to drive the two second annular grinding cutters 35 to reset.

[0052] It should also be noted that the first annular grinding blade 34 and the second annular grinding blade 35 can be fixed by multiple external screws, so that the first annular grinding blade 34 and the second annular grinding blade 35 are integrated. When the first annular grinding blade 34 is severely worn, the second annular grinding blade 35 can be added to directly extrude the gear part.

[0053] In summary, the deburring and chamfering device for gear shafts based on the embodiments of this application has been clarified, which provides advantages such as making the gear shaft less prone to bending, having diverse chamfering methods, and being able to chamfer bevel gears.

[0054] It is worth mentioning that, in this embodiment, the deburring and chamfering device for the gear shaft has a simple structure, does not involve complex manufacturing processes or expensive materials, and is highly economical. At the same time, for manufacturers, the deburring and chamfering device for the gear shaft provided in this application is easy to produce and inexpensive, which is more conducive to controlling production costs and further facilitates product promotion and use.

[0055] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and any modifications or variations of the embodiments of the present invention may be made without departing from these principles.

Claims

1. A deburring and chamfering device for a gear shaft, used for chamfering the gear portion of a gear shaft, characterized in that, The deburring and chamfering device for the gear shaft includes: A workbench, said workbench being placed on the ground, A clamping assembly, wherein the gear shaft is mounted on the clamping assembly, and the clamping assembly is mounted on the worktable; and A deburring and chamfering assembly, wherein the deburring and chamfering assembly is disposed on the worktable and is configured to chamfer both ends of the gear portion, and the deburring and chamfering assembly comprises: One connector, One connecting shaft, A fourth driving component, wherein the connector has a first insertion hole through the connector, one end of the connecting shaft passes through the first insertion hole and the other end is connected to the fourth driving component, and the middle section of the connector also has an annular protrusion; Two first annular grinding cutters are arranged opposite each other and both first annular grinding cutters are disposed on the connecting member. The sides of the two first annular grinding cutters that are close to each other are in contact with both sides of the annular protrusion. The sides of the two first annular grinding cutters that are close to each other have a first grinding surface. Each first annular grinding cutter has an annular mating surface on the side of its close to the gear portion. Two second annular grinding cutters, the inner walls of which respectively contact the two annular mating surfaces; and A pulling component is provided at the middle section of the annular protrusion and connected to the side of the two second annular grinding blades that are close to each other. The pulling component is configured to drive the second annular grinding blades to move a predetermined distance in the direction of approaching each other.

2. The deburring and chamfering device for gear shafts according to claim 1, wherein the clamping assembly includes a second driving assembly and a third driving assembly, the second driving assembly and the third driving assembly being disposed opposite to each other, the second driving assembly including a second housing, a second driving component and a chuck, the second housing being disposed on the worktable, and the second driving component being disposed inside the second housing, the chuck being disposed on the side of the second housing near the third driving assembly and connected to the second driving component, the third driving assembly including a third housing, a third driving component and a third rotating shaft, the third housing being placed on the worktable and spaced a predetermined distance from the second housing, and the third driving component being disposed inside the third housing, while one end of the third rotating shaft is connected to the third driving component, and the other end passes through the third housing near the side of the second housing and is disposed outside.

3. The deburring and chamfering device for gear shaft according to claim 2, wherein the dimension of the side of the first annular grinding cutter away from the annular protrusion is larger than the dimension of the side of the first annular grinding cutter closer to the annular protrusion.

4. The deburring and chamfering device for gear shaft according to claim 3, wherein each of the two annular grinding cutters has a second grinding surface and a third grinding surface on its adjacent side, and the second grinding surface is located between the third grinding surface and the first grinding surface, and the angle of the second grinding surface is greater than the angle of the third grinding surface, wherein the angle of the second grinding surface is 70°-75° and the angle of the third grinding surface is 40°-45°.

5. The deburring and chamfering device for gear shaft according to claim 4, wherein each of the second annular grinding cutters has two oppositely arranged second connecting holes, and both second connecting holes penetrate the second annular grinding cutter.

6. The deburring and chamfering device for gear shafts according to claim 5, wherein each of the pulling components includes a first housing, a second insertion hole on one side of the first housing, the second insertion hole penetrating the first housing, and the two ends of the second insertion hole respectively facing two second connecting holes; furthermore, each of the pulling components includes two connecting rods, each connecting rod including an insertion end and a stop end, the insertion end being connected to the stop end, both stop ends being disposed in the second insertion holes and spaced apart by a predetermined distance, the two insertion ends respectively passing through the corresponding two second insertion holes and located on the opposite side of the two second annular grinding blades.

7. The deburring and chamfering device for gear shaft according to claim 6, wherein a magnetic block is provided at the end of the abutting end opposite to the insertion end, and an electromagnet is provided at the center of the second insertion hole. In addition, a distance sensor is installed on both sides of the first housing, and the two distance sensors correspond to the two second annular grinding tools respectively.

8. The deburring and chamfering device for a gear shaft according to claim 7, wherein the wall surface forming the second insertion hole and near the annular protrusion further has two opposing first mounting grooves, and the two first mounting grooves are respectively near the two ends of the second insertion hole; the side forming the first mounting groove and near the electromagnet also has a sliding groove, and the sliding groove is connected to the first mounting groove; in addition, the side of the first housing near the annular protrusion has two opposing second mounting grooves, and the two second mounting grooves are respectively connected to the two sliding grooves.

9. The deburring and chamfering device for a gear shaft according to claim 8, wherein the pulling assembly further includes two moving rods, each of the moving rods including a stop portion and an insertion portion, the stop portion being connected to the insertion portion and the stop portion being disposed in the first mounting groove, the end of the insertion portion facing away from the stop portion being placed in the sliding groove, and a rotating member being disposed on the insertion portion, the rotating member being threadedly connected to the insertion portion and being placed in the second mounting groove.

10. The deburring and chamfering device for gear shafts according to claim 9, wherein each of the pulling components further includes a base, the base being detachably disposed on the annular protrusion and located between the two second annular grinding blades, and the first housing being detachably disposed on the top of the base, and the top of the base also having two opposing third mounting grooves, the two third mounting grooves respectively corresponding to the two second mounting grooves, and each of the pulling components further includes two fifth driving components, each of the fifth driving components including a fifth driving component and a gear component, the fifth driving component being disposed in the third mounting groove, and the fifth driving component being connected to the gear component, and the gear component being meshed with the rotating component.

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