End face tooth meshing degree detection tool

Abstract

The utility model relates to an end face tooth meshing degree detection tool comprising a support; the clamping mechanism is arranged on the bracket and is used for clamping the half shaft; the sliding seat is arranged on the support in a sliding mode, a rotating mechanism is arranged on the sliding seat, and the rotating mechanism is used for being connected with and driving the brake disc to rotate; and the propelling mechanism is arranged on the support and used for driving the sliding seat to move in the length direction of the support, so that the brake disc extrudes the half shaft. After the pre-assembled brake disc and the semi-shaft are installed in an aligned mode with a tool, a connecting bolt of the brake disc and the semi-shaft is loosened manually or through a tool, the state of the brake disc is observed under the action of a preset propelling moment applied by the propelling mechanism to the brake disc and a preset rotating moment applied by the rotating mechanism to the brake disc, and if the brake disc does not rotate, the brake disc is stopped from rotating. If the brake disc rotates by a certain angle and then is maintained, the end face teeth are converted into a meshing state from a top tooth state, and the detection accuracy of meshing of the half shaft and the end face teeth of the brake disc is effectively ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile assembly, in particular to a tool for detecting the meshing degree of end face teeth. Background Art

[0002] The half-shaft includes a half-shaft end face tooth and a spline shaft section. The wheel hub bearing is provided with a spline sleeve. The spline shaft section of the half-shaft is connected to the spline sleeve of the wheel hub bearing. The wheel hub bearing is provided with multiple bolt through holes. The brake disc and the wheel hub bearing are correspondingly provided with multiple bolt through holes. The bolt through holes are used to pass the wheel hub bolts. The brake disc and the wheel hub bearing are connected by bolt locking. The brake disc is provided with brake disc end face teeth. The brake disc end face teeth are engaged with the half-shaft end face teeth. The brake disc and the half-shaft are connected by bolt locking.

[0003] At present, in the existing technology, during the assembly process of the end face gear structure of the automobile drive shaft and the brake disc, the engagement degree of the end face gear is mainly checked by manual judgment and a plug gauge tool. The brake disc is rotated after the drive shaft is manually gripped. If the brake disc does not rotate, it is determined that the end face gear is engaged. Then the plug gauge tool is inserted into the gap between the end face gear connecting the brake disc and the drive shaft. If it cannot be inserted into the gap, it is determined that the end face gear is engaged. Whether the end face gear is engaged is determined again by whether the plug gauge tool can be inserted into the gap. Since the torque is small when the brake disc is rotated by manually gripping the drive shaft, the top teeth of the drive shaft and the brake disc end face gears do not rotate, which affects the judgment of the operator and leads to a high false alarm rate. In addition, after repeated use, the plug gauge wears out and the size of the plug gauge end becomes smaller, which affects the judgment of the operator. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide an end face tooth engagement detection tool to solve the problem of high error rate in the existing manual judgment and plug gauge tooling for checking whether the end face teeth of the automobile drive shaft and the brake disc are engaged.

[0005] To achieve the above-mentioned and other related purposes, the present invention provides a tool for detecting the degree of meshing of end faces of teeth, comprising:

[0006] Bracket;

[0007] A clamping mechanism is provided on the bracket, and is used to clamp the half shaft;

[0008] A slide seat is slidably arranged on the bracket, and a rotating mechanism is provided on the slide seat, and the rotating mechanism is used to connect and drive the brake disc to rotate;

[0009] A propulsion mechanism is provided on the bracket, and is used for driving the slide to move along the length direction of the bracket so that the brake disc squeezes the half shaft.

[0010] Optionally, a tightening mechanism is further provided on the slide, and the tightening mechanism is used to lock or unlock the brake disc and the half shaft.

[0011] Optionally, the clamping mechanism includes a clamping drive component, a fixed clamp and a movable clamp, the movable clamp is slidably arranged on the bracket, the fixed clamp is fixedly arranged on the bracket, the clamping drive component is connected to the movable clamp, and the clamping drive component is used to drive the movable clamp close to or away from the fixed clamp to clamp or release the half-shaft.

[0012] Optionally, a guide column is provided on the fixed clamp, the movable clamp is slidably connected to the guide column, and the guide column is used to guide the movement of the movable clamp.

[0013] Optionally, both the fixed clamp and the movable clamp are provided with a clamping block, and the clamping block is provided with an arc-shaped clamping surface.

[0014] Optionally, the clamping block is a flexible clamping block.

[0015] Optionally, the rotating mechanism includes a rotating drive component, a transmission assembly and a bolt guide sleeve, the transmission assembly is connected to the rotating drive component, the bolt guide sleeve is connected to the transmission assembly, and the bolt guide sleeve is used to penetrate the wheel hub bolt.

[0016] Optionally, the transmission assembly includes a driving wheel and a driven wheel, the driving wheel is connected to the rotating driving component, the driven wheel is rotatably arranged on the slide, the driven wheel is engaged with the driving wheel, and the bolt guide sleeve is arranged on the driven wheel.

[0017] Optionally, the propulsion torque of the propulsion mechanism is 280-320 N.m.

[0018] Optionally, the torque of the rotating mechanism is 15 to 29 N.m.

[0019] As described above, the present invention has the following beneficial effects: the clamping mechanism, the rotating mechanism, and the propulsion mechanism are integrated into a structure through a bracket, thereby effectively improving the integration of the tooling for detecting the meshing degree between the half-shaft and the brake disc end face teeth. The half-shaft is clamped by the clamping mechanism, the rotating mechanism is connected to the brake disc and provides a rotational force to the brake disc, and the propulsion mechanism provides an extrusion force between the brake disc and the half-shaft. The locking bolts between the brake disc and the half-shaft are loosened manually or with a tool to ensure that the extrusion force between the brake disc and the half-shaft is completely provided by the propulsion mechanism; a preset propulsion torque is applied to the brake disc by the propulsion mechanism, and under the action of the preset propulsion torque, the rotating mechanism applies a preset rotational torque to the brake disc. Under the action of the preset rotational torque, if no rotation occurs between the brake disc and the half-shaft, it can be determined that the brake disc and the half-shaft end face teeth are in meshing state. The present application effectively reduces the labor intensity of manual work by setting up a clamping mechanism and a rotating mechanism instead of manually gripping the half-shaft or rotating the brake disc; under the action of a preset propulsion torque applied between the brake disc and the half-shaft by the propulsion mechanism and a preset rotational torque applied to the brake disc by the rotation mechanism, the meshing state of the end face teeth of the half-shaft and the brake disc can be accurately detected. In the top tooth state, the brake disc and the half-shaft can be rotated under the action of the preset rotational torque, so that the half-shaft and the end face teeth of the brake disc are meshed, and the end face teeth of the brake disc and the half-shaft will not jump teeth, thereby effectively ensuring the accuracy of the meshing detection of the end face teeth of the half-shaft and the brake disc, and avoiding the outflow of products with unengaged end face teeth to the next process or customers, thereby effectively reducing safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Shown is a schematic structural diagram of a face gear meshing degree detection tooling shown in an embodiment of the present application;

[0021] Figure 2 Display as Figure 1 A schematic structural diagram of the clamping mechanism shown in FIG;

[0022] Figure 3 Display as Figure 1 Schematic diagram of the structure of the rotating mechanism shown in FIG.

[0023] Description of Reference Numerals

[0024] Bracket 1, mounting block 101, slide rail 102, slider 103, clamping mechanism 2, clamping drive component 201, fixed clamp 202, guide column 202a, movable clamp 203, clamping block 204, clamping surface 204a, slide seat 3, rotating mechanism 4, rotating drive component 401, bolt guide sleeve 402, bolt guide through hole 402a, driving wheel 403, driven wheel 404, propulsion mechanism 5, tightening mechanism 6. DETAILED DESCRIPTION

[0025] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention.

[0026] See also Figures 1 to 3 . It should be noted that the illustrations provided in this embodiment only illustrate the basic concept of the present invention in a schematic manner, so the drawings only show the components related to the present invention rather than being drawn according to the number, shape and size of the components during actual implementation. During actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated. The structure, proportion, size, etc. illustrated in the drawings in this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which the present invention can be implemented. Therefore, they have no technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should also be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0027] Before describing the embodiments of this utility model in detail, we will first describe its application environment. The technology of this utility model is primarily applied in the field of automotive assembly technology. This utility model is designed to address the high error rate of existing manual judgment and plug gauge tooling in checking whether the end gears of the automotive drive shaft and brake disc are engaged.

[0028] Please combine Figures 1 to 3 As shown, the utility model provides a tool for detecting the meshing degree of end face teeth.

[0029] In an exemplary embodiment of the present application, a tool for detecting the degree of engagement of end teeth includes: a bracket 1; a clamping mechanism 2, which is arranged on the bracket 1 and is used to clamp the half-shaft; a slide 3, which is slidably arranged on the bracket 1 and is provided with a rotating mechanism 4, which is used to connect and drive the brake disc to rotate; a propulsion mechanism 5, which is arranged on the bracket 1 and is used to drive the slide 3 to move along the length direction of the bracket 1 so that the brake disc squeezes the half-shaft.

[0030] In this embodiment, a mounting block 101 is provided at one longitudinal end of the bracket 1. Mounting block 101 extends along the width of the bracket 1. A clamping mechanism 2 is disposed on mounting block 101. A propulsion mechanism 5 is disposed at the longitudinal end of the bracket 1, distal from the clamping mechanism 2. A slide rail 102 is provided at the lower portion of the bracket 1. A slider 103 is slidably connected to the slide rail 102. A slide seat 3 is connected to the slider 103. The propulsion mechanism 5 acts on the slider 103 to move the slider 103 along the longitudinal direction of the slide rail 102. The clamping mechanism 2, rotating mechanism 4, and propulsion mechanism 5 are integrated into a structure through the bracket 1, effectively improving the integration of the tooling for detecting the meshing degree of the half-shaft and the end face gear of the brake disc. The half-shaft is clamped by the clamping mechanism 2, the rotating mechanism 4 is connected to the brake disc and provides a rotational force to the brake disc, and the propulsion mechanism 5 provides an extrusion force for the brake disc and the half-shaft. The locking bolts of the brake disc and the half-shaft are loosened manually or with a tool to ensure that the extrusion force between the brake disc and the half-shaft is completely provided by the propulsion mechanism 5; a preset propulsion torque is applied to the brake disc by the propulsion mechanism 5, and under the action of the preset propulsion torque, the rotating mechanism 4 applies a preset rotational torque to the brake disc. Under the action of the preset rotational torque, if no rotation occurs between the brake disc and the half-shaft, it can be determined that the brake disc and the end face teeth of the half-shaft are in a meshing state. The present application effectively reduces the labor intensity of manual work by setting up a clamping mechanism 2 and a rotating mechanism 4 instead of manually gripping the half-shaft or rotating the brake disc; under the action of the preset propulsion torque applied by the propulsion mechanism 5 between the brake disc and the half-shaft and the preset rotational torque applied by the rotating mechanism 4 on the brake disc, the meshing state of the half-shaft and the end face teeth of the brake disc can be accurately detected. In the top tooth state, the brake disc and the half-shaft can be rotated under the action of the preset rotational torque, so that the half-shaft and the end face teeth of the brake disc are meshed, and the end face teeth of the brake disc and the half-shaft will not jump teeth, thereby effectively ensuring the accuracy of the meshing detection of the end face teeth of the half-shaft and the brake disc, and avoiding the outflow of products in the state of unengaged end face teeth to the next process or customers, thereby effectively reducing safety risks.

[0031] It is worth noting that the propulsion mechanism 5 includes but is not limited to a propulsion cylinder, a motor-driven screw transmission device, etc.

[0032] In an exemplary embodiment of the present application, a tightening mechanism 6 is further provided on the slide 3 , and the tightening mechanism 6 is used to lock or unlock the brake disc and the half shaft.

[0033] In this embodiment, the tightening mechanism 6 includes but is not limited to the use of a tightening gun. The tightening mechanism 6 is set on the slide 3, so that the tightening mechanism 6 is integrated into the end face tooth meshing degree detection tool, which further improves the integration of the tool. After the half-shaft and the brake disc bolts are pre-tightened, they are installed on the end face tooth meshing degree detection tool shown in the embodiment of the present application. Before applying the propulsion torque and rotational torque to the brake disc, the pre-tightening state of the pre-tightening bolts between the half-shaft and the brake disc is released by the tightening mechanism 6 set on the slide 3, and the pre-tightening force of the bolts between the brake disc and the half-shaft is removed. The propulsion mechanism 5 then applies the propulsion torque to the brake disc to ensure that the extrusion force on the brake disc is completely provided by the propulsion mechanism 5, thereby ensuring the accuracy of the detection structure.

[0034] In an exemplary embodiment of the present application, the clamping mechanism 2 includes a clamping drive component 201, a fixed clamp 202 and a movable clamp 203. The fixed clamp 202 is fixedly mounted on the mounting block 101, and the movable clamp 203 is slidably set on the bracket 1. The clamping drive component 201 is connected to the movable clamp 203. The clamping drive component 201 is used to drive the movable clamp 203 to move closer to or away from the fixed clamp 202 to clamp or release the half-shaft.

[0035] In this embodiment, the clamping drive component 201 includes but is not limited to a telescopic cylinder, a motor-driven screw transmission device, etc. The clamping drive component 201 drives the movable clamp 203 to approach the fixed clamp 202, thereby clamping and fixing the half-shaft, and the clamping force is ≥1t to prevent the half-shaft from rotating with the brake disc. The clamping drive component 201 drives the movable clamp 203 away from the fixed clamp 202, thereby releasing the half-shaft.

[0036] In an exemplary embodiment of the present application, a guide post 202 a is provided on the fixed clamp 202 , and the movable clamp 203 is slidably connected to the guide post 202 a , and the guide post 202 a is used to guide the movement of the movable clamp 203 .

[0037] In this embodiment, the guide column 202 a guides the movable clamp 203 and provides support for the movable clamp 203 .

[0038] In an exemplary embodiment of the present application, both the fixed clamp 202 and the movable clamp 203 are provided with a clamping block 204 , and the clamping block 204 is provided with an arc-shaped clamping surface 204 a.

[0039] In this embodiment, a dovetail slide 3 is provided on both the fixed clamp 202 and the movable clamp 203, and a dovetail groove is provided on the clamping block 204. The dovetail groove of the clamping block 204 is slidably connected to the dovetail slide 3, so that the position of the clamping block 204 is adjustable. The clamping block 204 is provided with an arc-shaped clamping surface 204a for clamping the half-shaft. The provision of the arc-shaped clamping surface 204a increases the contact area between the clamping block 204 and the half-shaft, thereby increasing the friction force, and further preventing the half-shaft from rotating with the brake disc under the action of the rotational torque.

[0040] In an exemplary embodiment of the present application, the clamping block 204 is a flexible clamping block 204 .

[0041] In this embodiment, the clamping block 204 includes but is not limited to a rubber clamping block 204. The rubber clamping block 204 has a large friction force, which can further ensure that the half-shaft will not rotate with the brake disc under the action of the rotational torque. The clamping block 204 is made of flexible material, which can effectively prevent the half-shaft from being clamped or deformed under the action of the clamping force, thereby avoiding affecting the structure of the half-shaft.

[0042] In an exemplary embodiment of the present application, the rotating mechanism 4 includes a rotating drive component 401, a transmission assembly and a bolt guide sleeve 402. The transmission assembly is connected to the rotating drive component 401, and the bolt guide sleeve 402 is connected to the transmission assembly. The bolt guide sleeve 402 is used to penetrate the hub bolt.

[0043] In this embodiment, the rotary drive component 401 is a servo motor, and the transmission components include but are not limited to bevel gear transmission, worm gear transmission, etc., which can be selected according to the layout position of the rotary drive component 401. Bolt guide holes 402a are provided on the bolt guide sleeve 402 corresponding to the brake disc and the hub bearing. By passing the hub bolt through the hub bearing, the brake disc and the bolt guide hole 402a, the rotational torque output by the rotary drive component 401 can be transmitted and drive the brake disc to rotate.

[0044] In an exemplary embodiment of the present application, the transmission assembly includes a driving wheel 403 and a driven wheel 404, the driving wheel 403 is connected to the rotating driving component 401, the driven wheel 404 is rotatably set on the slide 3, the driven wheel 404 is engaged with the driving wheel 403, and the bolt guide sleeve 402 is set on the driven wheel 404.

[0045] In this embodiment, the diameter of the driving wheel 403 is smaller than that of the driven wheel 404. The rotating driving component 401 drives the driving wheel 403 with a smaller diameter to drive the driven wheel 404 with a larger diameter to rotate, forming a gear reduction motor, so that the rotating driving component 401 can output large torque at a low speed.

[0046] In an exemplary embodiment of the present application, the propulsion torque of the propulsion mechanism 5 is 280-320 Nm.

[0047] In this embodiment, the propulsion torque includes but is not limited to 280N.m, 290N.m, 300N.m, 310N.m, 320N.m, etc.

[0048] In an exemplary embodiment of the present application, the torque of the rotating mechanism 4 is 15-29 N·m.

[0049] In this embodiment, the torque of the rotating mechanism 4 includes but is not limited to 15 N.m, 17 N.m, 19 N.m, 22 N.m, 25 N.m, 27 N.m, 29 N.m, etc.

[0050] For example, the propulsion torque of propulsion mechanism 5 is 300 N.m, and the torque of rotation mechanism 4 is 22 N.m. Under the propulsion torque of propulsion mechanism 5 of 300 N.m, a rotational torque of 22 N.m is applied to the brake disc. If the brake disc does not rotate, it is determined that the brake disc end face teeth and the half-shaft end face teeth are fully engaged. If the brake disc rotates, it is in the top tooth state. Under the continuous action of the rotational torque, the brake disc rotates at a preset angle and then maintains it, and it is determined that the brake disc end face teeth and the half-shaft end face teeth are fully engaged. It is worth noting that when the brake disc end face teeth and the half-shaft end face teeth are in meshing state, and under the action of the propulsion torque of 300 N.m and the rotational torque of 22 N.m, no tooth jump will occur.

[0051] Working principle: Before testing the degree of engagement between the brake disc and the axle end face teeth, the brake disc and the axle are manually pre-assembled. The pre-assembled axle and brake disc are aligned with the end face tooth engagement testing tool shown in the embodiment of the present application, and the wheel hub bolts are aligned with the bolt guide holes 402a on the bolt guide sleeve 402 to complete the connection between the brake disc and the rotating mechanism 4. The axle is then clamped by the clamping mechanism 2, and the tightening mechanism 6 loosens the locking bolts between the brake disc and the axle to release the preload between the brake disc and the axle. The brake disc is then applied with a thrust torque by the thrust mechanism 5, and the rotating mechanism 4 applies a rotational torque to the brake disc to observe whether the brake disc rotates. If the brake disc does not rotate, it is determined that the brake disc and the axle end face teeth are fully engaged. If the brake disc rotates a certain angle and maintains this position, it is also determined that the brake disc and the axle end face teeth are fully engaged. Under the combined action of the thrust torque and the rotational torque, the brake disc and the axle end face teeth will not jump when engaged. The present application forms an integrated structure by using a bracket 1 to integrate a clamping mechanism 2, a rotating mechanism 4, a propulsion mechanism 5, and a tightening mechanism 6, thereby effectively improving the integration of a tool for detecting the meshing degree of the half-shaft and the brake disc end face teeth. The present application effectively reduces the labor intensity of manual work by providing a clamping mechanism 2 and a rotating mechanism 4 instead of manually gripping the half-shaft or rotating the brake disc. Under the action of a preset propulsion torque applied between the brake disc and the half-shaft by the propulsion mechanism 5 and a preset rotational torque applied to the brake disc by the rotating mechanism 4, the meshing state of the half-shaft and the brake disc end face teeth can be accurately detected. In the top tooth state, under the action of a preset rotational torque, the brake disc and the half-shaft can be rotated, so that the half-shaft and the brake disc end face teeth mesh, and the brake disc and the half-shaft end face teeth will not jump, thereby effectively ensuring the accuracy of the meshing detection of the half-shaft and the brake disc end face teeth, and preventing the product with the end face teeth not meshing from flowing to the next process or customer, thereby effectively reducing safety risks.

[0052] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed in the present invention are intended to be covered by the claims of the present invention.

Claims

1. A tool for detecting the degree of meshing of end teeth, characterized in that: include: Bracket; A clamping mechanism is provided on the bracket, and is used to clamp the half shaft; A slide seat is slidably arranged on the bracket, and a rotating mechanism is provided on the slide seat, and the rotating mechanism is used to connect and drive the brake disc to rotate; A propulsion mechanism is provided on the bracket, and is used for driving the slide to move along the length direction of the bracket so that the brake disc squeezes the half shaft.

2. The end face gear engagement detection tool according to claim 1, characterized in that: The slide seat is also provided with a tightening mechanism, which is used to lock or unlock the brake disc and the half shaft.

3. The end face gear engagement detection tool according to claim 1, characterized in that: The clamping mechanism includes a clamping drive component, a fixed clamp and a movable clamp. The movable clamp is slidably arranged on the bracket, and the fixed clamp is fixedly arranged on the bracket. The clamping drive component is connected to the movable clamp. The clamping drive component is used to drive the movable clamp to move closer to or away from the fixed clamp to clamp or release the half-shaft.

4. The end face gear engagement detection tool according to claim 3, characterized in that: The fixed clamp is provided with a guide column, the movable clamp is slidably connected to the guide column, and the guide column is used to guide the movement of the movable clamp.

5. The end face gear meshing degree detection tool according to claim 4, characterized in that: The fixed clamp and the movable clamp are both provided with a clamping block, and the clamping block is provided with an arc-shaped clamping surface.

6. The end face gear engagement detection tool according to claim 5, characterized in that: The clamping block is a flexible clamping block.

7. The end face gear engagement detection tool according to claim 1, characterized in that: The rotating mechanism includes a rotating drive component, a transmission assembly and a bolt guide sleeve. The transmission assembly is connected to the rotating drive component. The bolt guide sleeve is connected to the transmission assembly. The bolt guide sleeve is used to penetrate the wheel hub bolt.

8. The end face gear engagement detection tool according to claim 7, characterized in that: The transmission assembly includes a driving wheel and a driven wheel, the driving wheel is connected to the rotating driving component, the driven wheel is rotatably arranged on the slide, the driven wheel is engaged with the driving wheel, and the bolt guide sleeve is arranged on the driven wheel.

9. The end face gear meshing degree detection tool according to claim 1, characterized in that: The propulsion torque of the propulsion mechanism is 280-320 N.m.

10. The end face gear engagement detection tool according to claim 9, characterized in that: The torque of the rotating mechanism is 15 to 29 N.m.

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