Phase self-centering device for a dog clutch

Abstract

This utility model relates to a phase self-centering device for a claw clutch, comprising a milling machine and a positioning mechanism mounted on the milling machine. The positioning mechanism includes a cylinder mounted on the milling machine, a pressing component fixedly mounted on the moving end of the cylinder, and a tooling fixedly mounted on the milling machine. The pressing component includes a tool holder fixedly mounted on the moving end of the cylinder, a guide sleeve fixedly mounted on the tool holder, a guide rod fixedly mounted on the guide sleeve, a triangular pressure head movably mounted inside the guide sleeve, buffer springs fixed at both ends to the guide sleeve and the triangular pressure head respectively, and a limiting component mounted on the guide sleeve. This phase self-centering device utilizes the geometric self-centering characteristics of the triangular pressure head to achieve passive radial synchronous adjustment of the claw teeth through forced contact and sliding between the inner surface of the claw teeth and the side surface of the triangular pressure head. This ensures that the circumferential angle and radial position of the three claw teeth are completely aligned, significantly improving positioning accuracy compared to manual adjustment.

Description

Technical Field

[0001] This utility model relates to the field of claw clutch processing technology, specifically to a phase self-centering device for a claw clutch. Background Technology

[0002] When manufacturing a claw clutch, the machining accuracy of the claws directly determines the transmission fit accuracy and the reliability of the clutch operation. Precision machining such as milling is usually required on the inner or outer sides of the claw teeth. Before machining, it is necessary to ensure that the circumferential position and radial dimension of each claw tooth are consistent. Otherwise, the machined parts will not meet the assembly requirements and may even cause operational failures.

[0003] In traditional machining methods, simple fixtures are typically used to clamp and position the jaws, requiring operators to manually adjust the position of each jaw tooth to align it with the machining datum. However, this method has significant drawbacks: manual adjustment relies on operator experience, making it difficult to guarantee the synchronous positioning accuracy of the three jaw teeth and easily introducing human error.

[0004] To address the aforementioned issues, a phase self-centering device based on the Chinese claw clutch is now adopted. This device has an automatic centering function and can guide the claw teeth to quickly reach the predetermined position through a mechanical structure, eliminating human error and ensuring consistency. Utility Model Content

[0005] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0006] To address the technical problems mentioned in the background section above, some embodiments of this application provide a phase self-centering device for a claw clutch, including a milling machine and a positioning mechanism mounted on the milling machine. The positioning mechanism includes a cylinder mounted on the milling machine, a pressing assembly fixedly mounted on the moving end of the cylinder, and a tooling fixedly mounted on the milling machine. The pressing assembly includes a tool holder fixedly mounted on the moving end of the cylinder, a guide sleeve fixedly mounted on the tool holder, a guide rod fixedly mounted on the guide sleeve, a triangular pressure head movably mounted inside the guide sleeve, elastic elements fixedly mounted at both ends on the guide sleeve and the triangular pressure head respectively, and a limiting assembly mounted on the guide sleeve.

[0007] Specifically, the axis of the tool holder coincides with the axis of the tooling.

[0008] Specifically, the limiting component includes a limiting groove on the triangular pressure head, a threaded groove on the guide sleeve, and an anti-rotation screw that is movably disposed on the guide sleeve and cooperates with the threaded groove.

[0009] Specifically, the tooling includes a washer fixed on the milling machine, a base fixed on the washer, a spring seat fixed on the base, a positioning sleeve fixed on the base, a support seat fixed on the positioning sleeve, a hydraulic rod movably disposed in the base, and multiple elastic clamps fixed on the hydraulic rod.

[0010] Specifically, the triangular pressure head is movably mounted on the guide rod.

[0011] Specifically, the outer sides of the multiple elastic clamps are provided with inclined surfaces; the spring seat is provided with a guide surface that cooperates with the inclined surfaces.

[0012] Specifically, the elastic element is a buffer spring.

[0013] Specifically, the triangular pressure head includes a connecting seat fixed to one end of the buffer spring, a cavity on the connecting seat, a relief groove on the cavity, a pressure head body detachably mounted on the connecting seat, and a T-shaped limiting rod on the pressure head body. The beneficial effects of this utility model are: (1) By utilizing the geometric self-centering characteristics of the triangular indenter, the passive radial synchronous adjustment of the claw teeth is achieved through the forced contact and sliding between the inner side of the claw teeth and the side of the triangular indenter, ensuring that the circumferential angle and radial position of the three claw teeth are completely aligned. Compared with manual adjustment, this significantly improves the positioning accuracy.

[0014] (2) The operator only needs to place the claw on the tooling without manually adjusting the position of the claw teeth. The triangular pressure head can automatically complete the positioning after pressing down, saving clamping time. Moreover, the positioning reference is standardized, eliminating the frequent verification process in traditional processing.

[0015] (3) The starting point of all the claw teeth is forcibly aligned by the triangular pressure head to avoid dimensional deviations caused by positioning deviations and improve the product qualification rate. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0017] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0018] In the attached diagram: Figure 1 This is a structural diagram of the present invention; Figure 2 This is a top view of the present invention; Figure 3 for Figure 2 AA-line sectional view; Figure 4 This is a structural diagram of the triangular pressure head in this utility model; Figure 5 This is a side view of the triangular indenter; Figure 6 for Figure 5 BB line section view. Detailed Implementation

[0019] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0020] It should also be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0021] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0022] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0023] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] Reference Figures 1-6 As shown, the phase self-centering device for a claw clutch according to this utility model includes a milling machine 1 and a positioning mechanism 2 mounted on the milling machine 1. The positioning mechanism 2 includes a cylinder 3 mounted on the milling machine 1, a pressing component 4 fixedly mounted on the moving end of the cylinder 3, and a tooling 5 fixedly mounted on the milling machine 1. The pressing component 4 includes a tool bar 41 fixedly mounted on the moving end of the cylinder 3, a guide sleeve 42 fixedly mounted on the tool bar 41, a guide rod 43 fixedly mounted on the guide sleeve 42, a triangular pressure head 44 movably mounted inside the guide sleeve 42, an elastic element 45 fixedly mounted at both ends on the guide sleeve 42 and the triangular pressure head 44 respectively, and a limiting component 46 mounted on the guide sleeve 42.

[0025] Specifically, the axis of the tool holder 41 coincides with that of the tooling 5.

[0026] Specifically, the limiting component 46 includes a limiting groove 461 on the triangular pressure head 44, a threaded groove 462 on the guide sleeve 42, and an anti-rotation screw 463 movably disposed on the guide sleeve 42 and cooperating with the threaded groove 462.

[0027] Specifically, the tooling 5 includes a washer 51 fixed on the milling machine 1, a base 52 fixed on the washer 51, a spring seat 53 fixed on the base 52, a positioning sleeve 54 fixed on the base 52, a support seat 55 fixed on the positioning sleeve 54, a hydraulic rod 56 movably disposed in the base 52, and a plurality of elastic clamps 57 fixed on the hydraulic rod 56.

[0028] Specifically, the triangular pressure head 44 is movably mounted on the guide rod 23.

[0029] Specifically, the outer sides of the plurality of elastic clamps 57 are provided with inclined surfaces 58; the spring seat 53 is provided with guide surfaces 59 that cooperate with the inclined surfaces 58.

[0030] Specifically, the elastic element 45 is a buffer spring.

[0031] Specifically, the triangular pressure head 44 includes a connecting seat 441 fixedly disposed at one end of the buffer spring, a cavity 442 disposed on the connecting seat 441, a relief groove 443 disposed on the cavity 442, a pressure head body 444 detachably disposed on the connecting seat 441, and a T-shaped limiting rod 445 disposed on the pressure head body 444.

[0032] Place the claw of the claw clutch to be processed on the support base 55, start the cylinder 3, driving the tool bar 41 to descend. Simultaneously, the triangular pressure head 44 descends and contacts the claw. Under the action of the triangular pressure head 44, the claw rotates. The anti-rotation screw 463 prevents the triangular pressure head 44 from rotating with the claw. After the three claw teeth are tangent to the three faces of the triangular pressure head 44, the downward pressure continues, driving multiple elastic chucks 57 to descend. Under the interaction of the guide surface 59 and the inclined surface 58, the multiple elastic chucks 57 approach each other, fixing the claw on the support base 55 for subsequent processing. The cooperation of the hydraulic rod 56 and the base 52 provides a buffering effect, preventing damage to the claw and tooling 5 during downward pressure. During the continuous downward pressure of the cylinder 3, the buffer spring protects the triangular pressure head 44, preventing damage to the claw and the triangular pressure head 44. When the pressure head body 444 is damaged, it is removed. The anti-rotation screw 463, when rotated 90 degrees, allows the pressure head body 444 to detach from the connecting seat 441, making replacement convenient and quick. Using a phase self-centering device with the above structure, the triangular pressure head 44 utilizes its geometric self-centering characteristics. Through forced contact and sliding between the inner surface of the claw teeth and the side of the triangular pressure head 44, passive radial synchronous adjustment of the claw teeth is achieved, ensuring complete alignment of the circumferential angle and radial position of the three claw teeth. Compared with manual adjustment, this significantly improves positioning accuracy. The operator only needs to place the claws on the fixture 5; without manually adjusting the claw teeth position, the triangular pressure head 44 automatically completes positioning after pressing down, saving clamping time. Furthermore, the standardized positioning datum eliminates the frequent verification steps in traditional machining, improving work efficiency. The milling starting points of all claw teeth are forcibly aligned by the triangular pressure head 44, avoiding dimensional deviations caused by positioning errors and improving product qualification rate.

[0033] In summary, this device achieves efficient and highly consistent machining of the claws of the claw clutch through the synergistic effect of the triangular pressure head 44 guiding positioning and rigid constraint.

[0034] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in the embodiments of this disclosure is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A phase self-centering device for a claw clutch, comprising a milling machine (1) and a positioning mechanism (2) disposed on the milling machine (1), characterized in that: The positioning mechanism (2) includes a cylinder (3) mounted on the milling machine (1), a pressing assembly (4) fixedly mounted on the moving end of the cylinder (3), and a tooling (5) fixedly mounted on the milling machine (1); the pressing assembly (4) includes a tool bar (41) fixedly mounted on the moving end of the cylinder (3), a guide sleeve (42) fixedly mounted on the tool bar (41), a guide rod (43) fixedly mounted on the guide sleeve (42), a triangular pressure head (44) movably mounted in the guide sleeve (42), an elastic element (45) fixed at both ends on the guide sleeve (42) and the triangular pressure head (44) respectively, and a limiting assembly (46) mounted on the guide sleeve (42).

2. The phase self-centering device for a claw clutch according to claim 1, characterized in that: The axis of the tool holder (41) coincides with that of the tooling (5).

3. The phase self-centering device for a claw clutch according to claim 1, characterized in that: The limiting component (46) includes a limiting groove (461) on the triangular pressure head (44), a threaded groove (462) on the guide sleeve (42), and an anti-rotation screw (463) movably disposed on the guide sleeve (42) and cooperating with the threaded groove (462).

4. The phase self-centering device for a claw clutch according to claim 2, characterized in that: The tooling (5) includes a washer (51) fixed on the milling machine (1), a base (52) fixed on the washer (51), a spring seat (53) fixed on the base (52), a positioning sleeve (54) fixed on the base (52), a support seat (55) fixed on the positioning sleeve (54), a hydraulic rod (56) movably disposed in the base (52), and multiple elastic clamps (57) fixed on the hydraulic rod (56).

5. The phase self-centering device for a claw clutch according to claim 1, characterized in that: The triangular pressure head (44) is movably mounted on the guide rod (43).

6. The phase self-centering device for a claw clutch according to claim 4, characterized in that: The outer sides of the multiple elastic clamps (57) are provided with inclined surfaces (58); the spring seat (53) is provided with a guide surface (59) that cooperates with the inclined surfaces (58).

7. The phase self-centering device for a claw clutch according to claim 1, characterized in that: The elastic element (45) is a buffer spring.

8. The phase self-centering device for a claw clutch according to claim 7, characterized in that: The triangular pressure head (44) includes a connecting seat (441) fixedly disposed at one end of the buffer spring, a cavity (442) disposed on the connecting seat (441), a relief groove (443) disposed on the cavity (442), a pressure head body (444) detachably disposed on the connecting seat (441), and a T-shaped limiting rod (445) disposed on the pressure head body (444).

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