A surface treatment device for gear machining

Abstract

The utility model relates to a kind of surface treatment devices for gear machining, including the base being set to surface treatment device, the base is provided with the circular table for placing gear, the circular table is provided with four center symmetry distribution and is used for the fixture of fixed gear, the base is provided with the connecting component for driving fixture movement, the base is provided with the drive component for driving connecting component rotation.The surface treatment device for gear machining, power is converted into transmission by controlling connecting component, so as to drive four fixtures to move to opposite side, so as to utilize four fixtures to push and shove gear to central axis and carry out fixation, so that clamping force effectively disperses in every tooth top of gear, avoid the deformation of single tooth top by excessive force, magnet of connecting plate top is absorbed T type iron piece, offset the loosening tendency generated by vibration, and rubber pad has elasticity, can avoid rigid contact to the damage of gear surface.

Description

Technical Field

[0001] This utility model relates to the field of surface treatment technology for gear processing, specifically to a surface treatment device for gear processing. Background Technology

[0002] Surface treatment is a crucial follow-up process in gear machining. Its core purpose is to improve the surface performance of the gear while preserving the toughness and precision of the gear substrate to meet the needs of different working conditions. Surface treatments include chemical heat treatment, physical or chemical coating, mechanical strengthening, and protective surface treatment. Among them, mechanical strengthening includes shot peening, rolling strengthening, internal hole extrusion or spline extrusion. Internal hole extrusion or spline extrusion is used to apply pressure to the internal hole or spline of the gear with an extrusion tool to strengthen the mating surface and prevent wear and deformation during assembly or operation. It is suitable for mating holes and spline connections between gears and shafts.

[0003] In the current technology, the cleaned gear is fixed on the fixture, the outer circle and end face of the gear are corrected by the dial indicator, the axis of the extrusion punch is adjusted to coincide with the axis of the mating hole, the press is started, and the punch is fed at a low speed and smoothly. After the punch has completely passed through the mating hole, the pressure is held for three seconds, and then the tool is withdrawn smoothly at the same speed, thereby completing the surface treatment of the gear mating hole. In actual processing, for the mating holes of gears with small module, multiple teeth, or thin tooth width, a three-jaw chuck is used to fix the gear. The chuck jaws act precisely on the tip circle. Due to the small area of ​​the tip circle and the thin radial thickness of the tip, the compressive strength is weak. As a result, the clamping force when the chuck jaws close exceeds the load-bearing capacity of the tip circle, leading to excessive and concentrated local stress on the tip circle. This causes the tip of the tooth to deform due to the excessive force, resulting in a smaller clearance during gear meshing and easy tooth tip interference during operation. Therefore, a surface treatment device for gear processing is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a surface treatment device for gear processing. It has the advantage of fixing gears of different sizes, as well as those with small modules, multiple teeth, or thin tooth widths. It solves the problem of processing the mating holes for gears with small modules, multiple teeth, or thin tooth widths. The device uses a three-jaw chuck to fix the gear, with the jaws precisely acting on the tooth tip circle. However, due to the small area and thin radial thickness of the tooth tip, the tooth tip has weak resistance to compression. This causes the clamping force when the jaws retract to exceed the load-bearing capacity of the tooth tip circle, resulting in excessive and concentrated local stress. This causes deformation of the tooth tip due to the excessive force, leading to a smaller clearance during gear meshing and making tooth tip interference a common problem during operation.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a surface treatment device for gear processing, comprising a base disposed on the surface treatment device, a frustum for placing gears disposed on the base, four clamps for fixing gears disposed on the frustum in a centrally symmetrical arrangement, a connecting component for moving the clamps disposed on the base, and a driving component for rotating the connecting component disposed on the base. The base includes a base plate, on which an mounting ring is fixedly installed; The frustum includes a circular plate fixedly mounted on a mounting ring, and the circular plate has four centrally symmetrical guide grooves. The clamp includes a guide post that is slidably installed with the guide groove. A connecting plate is fixedly installed on the top of the guide post. An arc-shaped clamp is inserted into the connecting plate. A T-shaped iron piece for fixing its position is provided on the arc-shaped clamp. One end of the T-shaped iron piece passes through the arc-shaped clamp and extends into the interior of the connecting plate. The connecting component includes a transmission plate rotatably mounted inside the mounting ring. A connecting frame extending through to the outside of the mounting ring is fixedly mounted on one side of the transmission plate. The transmission plate has four centrally symmetrical arc-shaped grooves, and the arc-shaped grooves are slidably connected to the guide post.

[0006] Furthermore, the driving component includes an electric push rod fixedly mounted on the base plate, and the telescopic end of the electric push rod is hinged to a connecting member, which is slidably connected to the connecting frame.

[0007] Furthermore, the top of the connecting plate is provided with a slot, and the arc-shaped clamp is an integral structure composed of a handle and an arc plate, with the handle embedded inside the slot. The handle is provided with a through groove that is adapted to the vertical section of the T-shaped iron piece.

[0008] Furthermore, two magnets for positioning the T-shaped iron piece are embedded in the top of the connecting plate, and a rubber pad is fixedly installed on the inner peripheral wall of the arc plate of the arc clamp.

[0009] Furthermore, the mounting ring has an arc-shaped limiting groove, and one end of the connecting frame passes through the arc-shaped limiting groove and is slidably connected to the arc-shaped limiting groove.

[0010] Compared with the prior art, the technical solution of this application has the following beneficial effects: 1. The surface treatment device for gear processing provides power through the drive component and controls the connecting component to convert the power into transmission, thereby driving four clamps to move to the opposite side. The four clamps push the gear onto the central axis and fix it, so that the clamping force of the clamps on the gear can be effectively distributed to each tooth tip of the gear, avoiding excessive force on a single tooth tip and deformation. 2. The surface treatment device for gear processing uses a magnet on the top of the connecting plate to attract T-shaped iron parts, which counteracts the loosening tendency caused by vibration and ensures the stability of the arc-shaped clamping part. The rubber pad on the inner circumferential wall of the arc-shaped clamping part is elastic and can buffer the clamping force to avoid damage to the gear surface caused by rigid contact. At the same time, the rubber pad increases friction to prevent slippage during gear processing. 3. The surface treatment device for gear processing is designed with a plug-in type fit between the slot of the connecting plate and the shank of the arc clamp. The fixture can be replaced simply by disassembling or inserting the T-shaped iron piece. Moreover, the arc clamp is an integral structure, and there is no shaking after the shank is inserted into the slot, which ensures the fitting accuracy between the arc plate and the gear. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structural base, driving component, and connecting component of this utility model; Figure 3 This is a schematic diagram of the structural connecting component, frustum, and clamp of this utility model; Figure 4 This is an exploded view of the structural fixture of this utility model.

[0012] In the diagram: 1. Base; 11. Base plate; 12. Mounting ring; 2. Frustum; 21. Circular plate; 22. Guide groove; 3. Fixture; 31. Guide column; 32. Connecting plate; 33. Arc-shaped clamp; 34. T-shaped iron piece; 35. Rubber pad; 36. Magnet; 4. Connecting component; 41. Transmission plate; 42. Connecting frame; 43. Arc-shaped groove; 5. Drive component; 51. Electric push rod; 52. Connector. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Example 1: Please refer to Figure 1-4 The surface treatment device for gear processing in this embodiment includes a base 1 disposed on the surface treatment device, a frustum 2 for placing gears disposed on the base 1, four clamps 3 centrally symmetrically distributed for fixing gears disposed on the frustum 2, a connecting component 4 for moving the clamps 3 disposed on the base 1, and a driving component 5 for rotating the connecting component 4 disposed on the base 1.

[0015] By adopting the above technical solution, the driving component 5 provides power and controls the connecting component 4 to convert the power into transmission, thereby driving the four clamps 3 to move to the opposite side. The four clamps 3 are used to push the gear onto the central axis and fix it, so that the clamping force of the clamps 3 on the gear can be effectively distributed to each tooth tip of the gear, avoiding excessive force on a single tooth tip and deformation.

[0016] Example 2: Please refer to Figure 1-4 Based on Embodiment 1, the base 1 includes a base plate 11, on which an mounting ring 12 is fixedly installed; The truncated cone 2 includes a circular plate 21 fixedly mounted on the mounting ring 12, and four centrally symmetrical guide grooves 22 are provided on the circular plate 21. The clamp 3 includes a guide post 31 that is slidably installed with the guide groove 22. A connecting plate 32 is fixedly installed on the top of the guide post 31. An arc-shaped clamp 33 is inserted into the connecting plate 32. A T-shaped iron piece 34 for fixing its position is provided on the arc-shaped clamp 33. One end of the T-shaped iron piece 34 passes through the arc-shaped clamp 33 and extends into the interior of the connecting plate 32. The connecting component 4 includes a transmission plate 41 rotatably mounted inside the mounting ring 12. A connecting frame 42 extending through the outside of the mounting ring 12 is fixedly mounted on one side of the transmission plate 41. Four centrally symmetrical arc-shaped grooves 43 are provided on the transmission plate 41, and the arc-shaped grooves 43 are slidably connected to the guide post 31.

[0017] The top of the connecting plate 32 is inlaid with two magnets 36 for positioning the T-shaped iron piece 34. A rubber pad 35 is fixedly installed on the inner peripheral wall of the arc plate of the arc clamp 33. The magnets 36 on the top of the connecting plate 32 attract the T-shaped iron piece 34, counteracting the loosening tendency caused by vibration and ensuring the stable position of the arc clamp 33. The rubber pad 35 on the inner peripheral wall of the arc clamp 33 is elastic and can buffer the clamping force to avoid damage to the gear surface from rigid contact. At the same time, the rubber pad 35 increases the friction to prevent the gear from slipping during processing and improves the clamping stability.

[0018] In addition, the top of the connecting plate 32 is provided with a slot, and the arc-shaped clamp 33 is an integrated structure consisting of a handle and an arc plate. The handle is embedded in the slot, and the handle is provided with a through groove that matches the vertical section of the T-shaped iron piece 34. The "slot" of the connecting plate 32 and the "handle" of the arc-shaped clamp 33 are plug-in type. The arc-shaped clamp 33 can be replaced simply by removing or inserting the T-shaped iron piece 34.

[0019] Using the above technical solution, according to the specifications of the gear to be processed, disassemble the T-shaped iron piece 34, insert the shank of the matching arc-shaped clamp 33 into the slot of the connecting plate 32, and then insert the T-shaped iron piece 34 through the through slot of the arc-shaped clamp 33 and embed it into the connecting plate 32. The T-shaped iron piece 34 is attracted by the magnet 36 on the top of the connecting plate 32 to prevent loosening. By controlling the transmission plate 41 to rotate smoothly within the mounting ring 12, the arc groove 43 on the transmission plate 41 slides with the guide post 31, forcing the guide post 31 to move radially inward synchronously along the guide groove 22 of the circular plate 21. The guide post 31 drives the connecting plate 32 and the arc clamp 33 to move closer to the gear until the rubber pad 35 is in close contact with the outer wall of the gear, achieving uniform clamping.

[0020] Example 3: Please refer to Figure 1-4 Based on Embodiment 2, the driving component 5 includes an electric push rod 51 fixedly installed on the base plate 11, and the telescopic end of the electric push rod 51 is hinged to a connector 52, and the connector 52 is slidably connected to the connecting frame 42. The electric push rod 51 provides a linear and adjustable driving force, and is slidably connected to the connecting frame 42 through the connector 52 to avoid power transmission jamming and ensure stable clamping force.

[0021] The mounting ring 12 has an arc-shaped limiting groove. One end of the connecting frame 42 passes through the arc-shaped limiting groove and is slidably connected to it. The arc-shaped limiting groove on the mounting ring 12 limits the rotation range of the connecting frame 42, preventing the transmission plate 41 from rotating too much and causing the clamp 3 to be over-clamped, thus protecting the gear and the clamp 3. The arc-shaped limiting groove slides with the connecting frame 42, which plays a radial guiding role in the movement of the connecting frame 42, preventing it from deviating and ensuring that the transmission plate 41 rotates smoothly.

[0022] Using the above technical solution, the cleaned gear is placed on the circular plate 21 of the frustum 2 and located between the four clamps 3. The electric push rod 51 of the drive component 5 is activated. The telescopic end of the electric push rod 51 pushes the connecting frame 42 through the connector 52. The connecting frame 42 slides along the arc-shaped limiting groove of the mounting ring 12, causing the transmission plate 41 to rotate smoothly within the mounting ring 12.

[0023] The working principle of the above embodiments is as follows: When using this surface treatment device for gear processing, according to the specifications of the gear to be processed, the T-shaped iron piece 34 is disassembled, the handle of the matching arc-mouth clamp 33 is inserted into the slot of the connecting plate 32, and then the T-shaped iron piece 34 is inserted through the through slot of the arc-mouth clamp 33 and embedded into the connecting plate 32. The T-shaped iron piece 34 is attracted by the magnet 36 on the top of the connecting plate 32 to prevent loosening. The cleaned gear is placed on the circular plate 21 of the frustum 2 and positioned between the four clamps 3. The electric push rod 51 of the drive component 5 is activated. The telescopic end of the electric push rod 51 pushes the connecting frame 42 through the connector 52. The connecting frame 42 slides along the arc-shaped limiting groove of the mounting ring 12, causing the transmission plate 41 to rotate smoothly within the mounting ring 12. The arc groove 43 on the transmission plate 41 slides with the guide post 31, forcing the guide post 31 to move radially inward synchronously along the guide groove 22 of the circular plate 21. The guide post 31 drives the connecting plate 32 and the arc clamp 33 to move closer to the gear until the rubber pad 35 is in close contact with the outer wall of the gear, achieving uniform clamping.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A surface treatment apparatus for gear machining, comprising a base (1) disposed on the surface treatment apparatus, characterized in that: The base (1) is provided with a frustum (2) for placing gears. The frustum (2) is provided with four clamps (3) that are centrally symmetrically distributed and used to fix gears. The base (1) is provided with a connecting component (4) for moving the clamps (3). The base (1) is provided with a driving component (5) for rotating the connecting component (4). The base (1) includes a base plate (11), on which an mounting ring (12) is fixedly installed. The frustum (2) includes a circular plate (21) fixedly installed on the mounting ring (12), and the circular plate (21) has four centrally symmetrical guide grooves (22). The clamp (3) includes a guide post (31) that is slidably installed with the guide groove (22). A connecting plate (32) is fixedly installed on the top of the guide post (31). An arc-shaped clamp (33) is inserted into the connecting plate (32). A T-shaped iron piece (34) for fixing its position is provided on the arc-shaped clamp (33). One end of the T-shaped iron piece (34) passes through the arc-shaped clamp (33) and extends into the interior of the connecting plate (32). The connecting component (4) includes a transmission plate (41) rotatably mounted in the mounting ring (12). A connecting frame (42) extending through the outside of the mounting ring (12) is fixedly mounted on one side of the transmission plate (41). Four centrally symmetrical arc grooves (43) are provided on the transmission plate (41), and the arc grooves (43) are slidably connected to the guide post (31).

2. The surface treatment apparatus for gear machining according to claim 1, characterized in that: The drive component (5) includes an electric push rod (51) fixedly mounted on the base plate (11), and the telescopic end of the electric push rod (51) is hinged to a connector (52), and the connector (52) is slidably connected to the connecting frame (42).

3. The surface treatment apparatus for gear machining according to claim 1, characterized in that: The top of the connecting plate (32) is provided with a slot, the arc-shaped clamp (33) is an integral structure composed of a handle and an arc plate, and the handle is embedded in the interior of the slot. The handle is provided with a through groove that is adapted to the vertical section of the T-shaped iron piece (34).

4. The surface treatment apparatus for gear machining according to claim 3, characterized in that: The top of the connecting plate (32) is inlaid with two magnets (36) for positioning the T-shaped iron piece (34), and a rubber pad (35) is fixedly installed on the inner peripheral wall of the arc plate of the arc clamp (33).

5. A surface treatment apparatus for gear machining according to claim 2, characterized in that: An arc-shaped limiting groove is provided on the mounting ring (12), and one end of the connecting frame (42) passes through the arc-shaped limiting groove and is slidably connected to the arc-shaped limiting groove.

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