Assembly tool for gear hub, gear sleeve and elastic assembly of synchronizer

Abstract

The invention discloses an assembly tool for a synchronizer gear hub, a gear sleeve and an elastic assembly, which comprises a support seat, a gear sleeve, a gear sleeve and an elastic assembly, and is characterized in that the support seat is provided with a through hole; the ring sleeve is provided with an axial hole, one end of the ring sleeve is matched with the through hole in the support, a radial through hole is formed in the circumferential surface of the ring sleeve, a receding hole is formed in the axial end surface of the ring sleeve, and the receding hole is communicated with the radial through hole; the first pushing mechanism is used for pushing the elastic assembly, and the first pushing mechanism is matched with the radial through hole; the second pushing mechanism is used for pushing the gear hub, and the second pushing mechanism is matched with the axial hole; and the lifting positioning mechanism is used for positioning the gear sleeve positioned on the axial end surface of the ring sleeve. After a spring seat in the synchronizer is removed, the synchronizer is suitable for assembling a spring, a marble, a gear hub and a gear sleeve.

Description

Technical Field

[0001] The invention relates to the field of synchronizers, and in particular to an assembly tool for a synchronizer gear hub, a gear sleeve and an elastic component. Background Art

[0002] As is well known, synchronizers can be used in multi-speed ratio transmissions to help achieve the shifting of all or part of the transmission ratios. The synchronizers can reduce the shifting force and / or shifting time required to complete a shift.

[0003] The existing synchronizer is generally composed of a gear hub, a gear sleeve, an elastic component, a lock ring, and a coupling tooth. The circumferential surface of the gear hub is provided with assembly holes, the number of which is three and evenly distributed along the circumference of the gear hub, and the elastic component is fitted in the assembly holes.

[0004] In the synchronizer of the above structure, the structure of the elastic component is generally composed of a spring seat and a pushing part. A first mounting hole is provided on the spring seat, and the first mounting hole is used to assemble the spring. A second mounting hole is provided on the pushing part, and the second mounting hole is used to install the rolling part. During the gear shifting process, the pushing part moves axially through the force transmitted to the rolling body by the gear sleeve, thereby pushing the locking ring to move axially.

[0005] The elastic component mentioned above is an assembled integral component, which can usually be purchased on the market. When the elastic component needs to be assembled with the gear hub, the elastic component can be directly inserted into the assembly hole. Although the elastic component of this structure is more convenient to assemble, the price of the purchased elastic component is higher because the elastic component includes a spring seat, which will lead to high product costs. In addition, the elastic component of the above structure will increase the sticking feeling of shifting due to the presence of the spring seat, thereby reducing the competitiveness of the product.

[0006] In order to improve the competitiveness of the product, the spring seat in the above-mentioned spring assembly is cancelled, the spring and the marble are assembled into the assembly hole, and then the gear sleeve is put on the gear hub. Through the action of the spring, the marble and the gear sleeve form abutment. Based on this structure, if mass production is to be realized, there is currently no assembly equipment that can realize this structure. Therefore, the current task is to develop a device for assembling the gear hub with the gear sleeve, spring and marble. Summary of the invention

[0007] The invention provides an assembly tool for a synchronizer gear hub, a gear sleeve and an elastic component. The invention is suitable for assembling a spring, a marble, a gear hub and a gear sleeve after a spring seat is removed from the synchronizer.

[0008] The assembly tooling of the synchronizer gear hub, gear sleeve and elastic component includes:

[0009] A support, wherein a through hole is provided on the support;

[0010] A ring sleeve with an axial hole, one end of which cooperates with the through hole on the support, a radial through hole is provided on the circumferential surface of the ring sleeve, and a clearance hole is provided on the axial end surface of the ring sleeve, and the clearance hole is connected with the radial through hole;

[0011] A first pushing mechanism for pushing the elastic component, the first pushing mechanism being matched with the radial through hole;

[0012] a second pushing mechanism for pushing the gear hub, the second pushing mechanism being matched with the axial hole;

[0013] A lifting and positioning mechanism for positioning the gear sleeve located on the axial end surface of the ring sleeve.

[0014] During assembly, first put the gear hub into the ring sleeve, then put the spring and marbles into the first guide hole, and finally put the gear sleeve on the cover plate, start the camera to take pictures to detect the front and back of the gear hub, whether the gear sleeve is aligned with the gear hub, and whether the marble spring is in place; after the inspection is completed without any problems, the translation drive mechanism pushes out the lifting and positioning mechanism; the lifting and positioning mechanism is pressed down, the lifting and positioning mechanism presses the gear sleeve, and forms a limit for the spring and marbles. The first pushing mechanism pushes the spring and marbles into the assembly hole on the gear hub, and the second pushing mechanism drives the gear hub to rise, so that the gear hub moves with the spring and marbles, and the marbles pass through the inner wall of the ring sleeve and the inner wall of the gear sleeve, and finally reach the joint for the marbles on the gear sleeve. Under the tension of the spring, the position of the marbles is maintained. In the present invention, for the elastic component, without using the independent spring seat in the background technology, the gear hub is directly used as the spring seat. This structure can make the state of the spring and marbles more flexible during the working process, so that there will be no gear shifting jam. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The three-dimensional diagram of the assembly tooling of the synchronizer gear hub, gear sleeve and elastic component.

[0016] Figure 2 For Figure 1 This is a schematic diagram after some parts are built on the basis of the model.

[0017] Figure 3 for Figure 2 Cross-sectional view of .

[0018] Figure 4 A perspective view of the guide component.

[0019] Figure 5 A three-dimensional diagram of a positioning column.

[0020] Figure 6 It is a three-dimensional diagram of the lifting and positioning mechanism, the visual detection component and the translation drive mechanism.

[0021] Figure 7This is the finished product after the hub, gear sleeve, spring and marble are assembled.

[0022] Figure 8 This is a cross-sectional view of the gear hub, gear sleeve, spring and marble after assembly.

[0023] Markings in the attached drawings:

[0024] Support 1, table 1a, pillar 1b, bottom plate 1c, fixing plate 1d, ring sleeve 2, axial hole 2a, radial through hole 2b, clearance hole 2c, cover plate 2d, guide component 3, first guide hole 3a, first clearance hole 3b, plug hole 3c, first linear drive 4, mounting plate 4a, support plate 4b, first push rod 5, second linear drive 6, support plate 7, positioning column 8, lifting drive 9, mounting seat 10, slide groove 10a, pressure plate 11, positioning column 12, column 12a, latch 12b, positioning component 12c, bracket 13, camera 14, translation drive mechanism 15, gear hub A, assembly hole A1, gear sleeve B, spring C, marble D. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential” and the like to indicate orientations or positional relationships, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] like Figures 1 to 8 As shown, the assembly tooling of the synchronizer gear hub and gear sleeve and the elastic component of the present invention includes a support 1, a ring sleeve 2 with an axial hole 2a, a guide component 3, a first pushing mechanism, a second pushing mechanism, and a lifting and positioning mechanism. It should be emphasized that the elastic component in the present invention is composed of a spring C and a marble D. The elastic component in the present invention does not include an independent spring seat for installing the spring C and the marble D in the background technology. The marble D in the present invention preferably uses a steel ball. Each part and the relationship between them are described in detail below.

[0031] The support 1 is provided with a through hole; the support 1 includes a platform 1a, a pillar 1b, and a bottom plate 1c, one end of the pillar 1b is fixed to the platform 1a, and the other end of the pillar 1b is fixed to the bottom plate 1c, and the through hole is provided on the platform 1a.

[0032] The axial hole 2a on the ring sleeve 2 preferably adopts a stepped hole, one end of the ring sleeve 2 cooperates with the through hole on the support 1, a radial through hole 2b is provided on the circumferential surface of the ring sleeve 2, and a clearance hole 2c is provided on the axial end surface of the ring sleeve 2, and the clearance hole 2c is connected with the radial through hole 2b. A cover plate 2d is provided on the ring sleeve 2, and the cover plate 2d is fastened to the ring sleeve 2 as a whole by screws, and a clearance groove is provided on the axial end surface of the cover plate 2d.

[0033] The guide component 3 is located in the radial through hole 2b, and the guide component 3 is in clearance with the radial through hole 2b. The guide component 3 is provided with a first guide hole 3a arranged in the radial direction and a first clearance hole 3b arranged in the axial direction. The first clearance hole 3b is connected with the first guide hole 3a, and the first pushing mechanism is in coordination with the first guide hole 3a. When the guide component 3 is assembled with the ring sleeve 2, the guide component 3 is placed in the radial through hole 2b, and the cover plate 2d is covered, so that the clearance groove on the cover plate 2d is in clearance with a part of the guide component 3, and the other part of the guide component 3 is clamped between the cover plate 2d and the ring sleeve 2.

[0034] The first pushing mechanism is used to push the elastic component, and the first pushing mechanism cooperates with the radial through hole 2b; after the guide component 3 is added to the radial through hole 2b, the first pushing mechanism cooperates with the first guide hole 3a. There are multiple first pushing mechanisms, which are arranged around the ring sleeve 2. The number of first pushing mechanisms is equal to the number of elastic components that need to be assembled. For example, if there are 3 elastic components that need to be assembled, the number of first pushing mechanisms is also 3. The elastic component in this embodiment includes a spring C and a marble D. The spring seat is cancelled in the elastic component in this embodiment, and the spring C and the marble D are directly assembled between the assembly hole A1 on the gear hub A and the gear sleeve B. The spring C and the marble D enter the first guide hole 3a through the first clearance hole 3b. When the first pushing mechanism works, it generates a pushing force on the spring C and the marble D, and pushes the spring C and the marble D toward the gear hub A.

[0035] The first pushing mechanism includes a first linear drive 4 and a first push rod 5. The first push rod 5 is connected to the first linear drive 4. In this embodiment, the first push rod 5 cooperates with the first guide hole 3a. The first linear drive 4 can be a cylinder, a hydraulic cylinder, etc. In this embodiment, a cylinder is preferably used. The first pushing mechanism also includes a support assembly, which includes a mounting plate 4a and a support plate 4b. The mounting plate 4a is fixed to the bottom plate 1c, and the support plate 4b is L-shaped. The support plate 4b is fixed to the mounting plate 4a, and the first linear drive 4 is fixed to the support plate 4b.

[0036] The second pushing mechanism is used to push the gear hub A, and the second pushing mechanism cooperates with the axial hole 2a. The second pushing mechanism includes a second linear drive 6, a support plate 7, and a positioning column 8. The second linear drive 6 can be a cylinder, a hydraulic cylinder, etc. The second linear drive 6 is provided with a fixing plate 1d installed on the lower surface of the table 1a. The second linear drive 6 is fixed to the fixing plate 1d. The output end of the second linear drive 6 passes through the fixing plate 1d and is connected to the support plate 7. The support plate 7 and the axial hole 2a are clearance-matched. In this embodiment, since the axial hole 2a is a step hole, the support plate 7 and the small-diameter hole of the axial hole 2a are clearance-matched. The positioning column 8 is used to cooperate with the inner hole of the gear hub A, and the positioning column 8 is fixed to the support plate 7.

[0037] The lifting and positioning mechanism positions the gear sleeve B located on the axial end surface of the ring sleeve 2. The lifting and positioning mechanism includes a lifting driver 9 and a pressure plate assembly. The pressure plate assembly is fixed to the lifting driver 9. The lifting driver 9 can be a cylinder, a hydraulic cylinder, etc. In this embodiment, the lifting driver 9 preferably uses a cylinder. The pressure plate assembly includes a mounting seat 10 and a pressure plate 11. The mounting seat 10 is provided with a slide groove 10a. After the pressure plate 11 is matched with the slide groove 10a, the pressure plate 11 and the mounting seat 10 are locked together by fasteners. This structure can facilitate the replacement of the pressure plate 11.

[0038] The lifting and positioning mechanism is combined with the guide component 3 when it descends, and is separated from the guide component 3 when it ascends. The lifting and positioning mechanism also includes a positioning column 12, one end of which is fixed to the pressure plate assembly, and the other end of the positioning column 12 is a free end. When the lifting and positioning mechanism descends, the positioning column 12 presses on the guide component 3, and at the same time, a part of the positioning column 12 cooperates with the first guide hole 3a and the first clearance hole 3b, forming a limiting effect on the spring C and the marble D located in the first guide hole 3a, which is conducive to the subsequent pushing of the spring C and the marble D by the first push rod 5.

[0039] The positioning column 12 includes a column 12a, a latch 12b, and a positioning component 12c. One end of the column 12a is fixed to the pressure plate 11, and the latch 12b and the limiting component 12c are installed on the end face of the other end of the column 12a. The guide component 3 is provided with a plug hole 3c. After the positioning column 12 descends, the latch 12b is plugged into the plug hole 3c, and the limiting component 12c passes through the first clearance hole 3b and cooperates with the first guide hole 3a, so that the limiting component 12c forms a limiting effect on the spring C and the marble D located in the first guide hole 3a.

[0040] The present invention also includes a visual detection component and a translation drive mechanism 15. The visual detection component is located above the lifting and positioning mechanism. The visual detection component includes a bracket 13 and a camera 14. The bracket 13 and the camera 14 are fixed; the translation drive mechanism 15 is connected to the lifting and positioning mechanism.

[0041] The working process of the present invention is as follows:

[0042] After the gear hub A is put on the positioning column 8, it is supported by the support plate 7 and the step surface of the axial hole 2a, so that the assembly hole A1 on the circumferential surface of the gear hub A corresponds to the position of the first guide hole 3a, the spring C and the marble D are placed in the first guide hole 3a, and the gear sleeve B is placed on the axial end face of the cover plate 2d. The cover plate 2d supports the gear sleeve B, and the part of the inner wall of the gear sleeve B that cooperates with the marble corresponds to the position of the first guide hole 3a.

[0043] The camera 14 collects images of the placed gear hub A, gear sleeve B, spring C, and marble D, and the collected images are transmitted to an industrial computer (not shown in the figure). The industrial computer determines whether the gear hub A is aligned with the gear sleeve B, and whether the spring C and marble D are placed in place. If the above judgments are correct, the translation drive mechanism 15 drives the lifting and positioning mechanism to move to the top of the ring sleeve 2. At this time, the lifting and positioning mechanism is located between the ring sleeve 2 and the camera 14.

[0044] The lifting driver 9 drives the mounting seat 10, the pressure plate 11, and the positioning column 12 to descend. After the pressure plate 11 descends, the gear sleeve B is pressed between the pressure plate 11 and the cover plate 2d. After the positioning column 12 descends, the latch 12b is plugged into the plug hole 3c, and the limiting component 12c passes through the first clearance hole 3b and cooperates with the first guide hole 3a. The first linear driver 4 drives the first push rod 5 to apply thrust to the marble D, so that the marble D and the spring C are fed to the assembly hole A1 on the gear hub A. After the marble D and the spring C are inserted into the assembly hole A1 on the gear hub A, the end of the first push rod 5 is basically flush with the outlet of the first guide hole 3a. At this time, the first push rod 5 keeps against the marble D to prevent the marble D from popping out.

[0045] Subsequently, the second linear drive 6 works to drive the support plate 7 to rise, and the support plate 7 drives the gear hub A to rise. During the rising process of the gear hub A, the marble D first moves along the end face of the first push rod 5 under the tension of the spring C, then moves along the inner wall surface of the ring sleeve 2, and finally moves along the inner wall surface of the gear sleeve B. The marble D finally enters the coupling groove on the inner wall of the gear sleeve B with the marble D, thus completing the assembly of the gear hub A, the gear sleeve B, the spring C, and the marble D.

[0046] The piston rod in the lifting driver 9 is reset, so that the mounting seat 10, the pressure plate 11, and the positioning column 12 rise, the pressure plate 11 leaves the end surface of the gear sleeve B, and the positioning column 12 separates from the guide component 3. After the lifting and positioning mechanism rises to its position, the translation driving mechanism 15 drives the lifting and positioning mechanism to translate to prevent the lifting and positioning mechanism from blocking the visual range of the camera 14. The first linear driver 4 drives the first push rod 5 to retract, and the second linear driver 6 drives the support plate 7 to descend. Then reload and repeat the above process to install the next gear hub A, gear sleeve B, spring C, and marble D.

Claims

1. The assembly tool for the synchronizer gear hub, gear sleeve and elastic component is characterized by: include: A support (1), wherein the support (1) is provided with a through hole; A ring sleeve (2) having an axial hole (2a), one end of the ring sleeve (2) being matched with a through hole on a support (1), a radial through hole (2b) being provided on a peripheral surface of the ring sleeve (2), and a clearance hole (2c) being provided on an axial end surface of the ring sleeve (2), the clearance hole (2c) being connected to the radial through hole (2b); A first pushing mechanism for pushing the elastic component, the first pushing mechanism being matched with the radial through hole (2b); A second pushing mechanism for pushing the gear hub (A), the second pushing mechanism being matched with the axial hole (2a); A lifting and positioning mechanism for positioning a gear sleeve (B) located on the axial end surface of a ring sleeve (2).

2. The assembly tool for the synchronizer gear hub, gear sleeve and elastic component according to claim 1, characterized in that: Also includes: A guide component (3), the guide component (3) is located in the radial through hole (2b), the guide component (3) is provided with a first guide hole (3a) arranged in the radial direction and a first clearance hole (3b) arranged in the axial direction, the first clearance hole (3b) is connected with the first guide hole (3a), and the first pushing mechanism cooperates with the first guide hole (3a); The lifting and positioning mechanism is combined with the guide component (3) when it descends, and is separated from the guide component (3) when it ascends.

3. The assembly tool for the synchronizer gear hub, gear sleeve and elastic component according to claim 2, characterized in that: The first push mechanism includes: A first linear drive (4); A first push rod (5), the first push rod (5) is connected to the first linear drive (4); the first push rod (5) is matched with the first guide hole (3a).

4. The assembly tool for the synchronizer gear hub, gear sleeve and elastic component according to claim 1, characterized in that: The second pushing mechanism comprises: a second linear drive (6); A support plate (7), the support plate (7) is connected to the second linear drive (6), and the support plate (7) is clearance-matched with the axial hole (2a); A positioning column (8) is used to cooperate with the inner hole of the gear hub (A), and the positioning column (8) is fixed to the support plate (7).

5. The assembly tool for the synchronizer gear hub, gear sleeve and elastic component according to claim 1, characterized in that: The lifting and positioning mechanism comprises a lifting drive (9) and a pressure plate assembly, wherein the pressure plate assembly is fixed to the lifting drive (9).

6. The assembly tool for the synchronizer gear hub, gear sleeve and elastic component according to claim 5, characterized in that: The pressure plate assembly comprises: a mounting seat (10), and a slide groove (10a) is provided on the mounting seat (10); The pressing plate (11) is matched with the slide groove (10a), and the pressing plate (11) and the mounting seat (10) are locked together by fasteners.

7. The assembly tool for the synchronizer gear hub, gear sleeve and elastic component according to claim 5, characterized in that: The lifting and positioning mechanism also includes a positioning column (12), one end of which is fixed to the pressure plate assembly, and the other end of which is a free end.

8. The assembly tool for the synchronizer gear hub, gear sleeve and elastic component according to any one of claims 1 to 7, characterized in that: Also includes: A visual detection component, the visual detection component is located above the lifting and positioning mechanism, the visual detection component comprises a bracket (13) and a camera (14), and the bracket (13) and the camera (14) are fixed; The translation driving mechanism (15) is connected to the lifting and positioning mechanism.

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