Gearbox selection pad tooling

Abstract

The utility model relates to the technical field of gearbox assembly, more particularly to a kind of gearbox selects pad tool, including datum plate and measuring tool, the bottom of the datum plate is connected with support, the support is used to be connected with gearbox housing to make the datum plate parallel to the gear end surface of gearbox, measurement hole is opened in the datum plate, the measurement hole is correspondingly set with the point to be measured of gearbox, the fixed end of the measuring tool is in abutment with the datum plate, the measurement end of the measuring tool passes through the measurement hole and is used to be in abutment with the point to be measured of gearbox. By support, datum plate is arranged in parallel on gearbox housing, wherein the end surface of datum plate is used as the reference surface of measurement, the height difference between each gear end surface and gearbox housing end surface is measured, since the height difference of each gear end surface measured by measuring tool is referenced to datum plate, the measurement accuracy is higher, and suitable gasket can be selected according to the measurement result.

Description

Technical Field

[0001] This utility model relates to the field of gearbox assembly technology, and more specifically, to a gearbox shim selection tooling. Background Technology

[0002] A gearbox is a precision transmission device consisting of a housing and its internal gear system. During gearbox assembly, shims are used to compensate for manufacturing errors in the gears, ensuring high precision and reliability. In gearbox production, specialized equipment such as automatic shim selectors is typically used for in-situ measurement and shim selection. While these specialized machines offer high measurement accuracy, they suffer from drawbacks such as extremely high cost, large size, and stringent environmental requirements, making them difficult to deploy in 4S stores or mobile service vehicles, thus limiting their application scenarios.

[0003] To address the aforementioned shortcomings, existing technologies have conducted relevant research, employing simplified methods for shim selection and measurement of gearboxes. For example, Chinese patent CN210486735U discloses a quick shim selection fixture for gearbox prototypes, which uses a dial indicator to measure and select shims. The dial indicator is mounted on an auxiliary support, which allows adjustment of the dial indicator's position both horizontally and vertically. However, the auxiliary support itself still has adjustment errors, leading to reduced measurement accuracy. Utility Model Content

[0004] To overcome the problem of low accuracy in the measurement of gearbox shims using the simple method in the prior art, this utility model provides a gearbox shim selection tooling.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a gearbox shim selection fixture, comprising: a reference plate and a measuring tool, wherein a support member is connected to the bottom of the reference plate, the support member is used to connect with the gearbox housing so that the reference plate is arranged parallel to the gear end face of the gearbox, a measuring hole is opened on the reference plate, the measuring hole is set corresponding to the measurement point of the gearbox, the fixed end of the measuring tool abuts against the reference plate, and the measuring end of the measuring tool passes through the measuring hole to abut against the measurement point of the gearbox.

[0006] In the technical solution of this utility model, the reference plate is set parallel to the gearbox housing by the support member. The measuring tool uses the end face of the reference plate as the reference surface for measurement to measure the height difference between the end face of each gear and the end face of the gearbox housing. Since the measuring tool uses the reference plate as a reference to measure the height difference between the end faces of each gear, the measurement accuracy is high, and a suitable shim can be selected according to the measurement results.

[0007] Furthermore, the measuring hole includes a first measuring hole, which is an arc-shaped hole. The projection of the first measuring hole onto the gear of the gearbox in the vertical direction at least partially coincides with the projection of the first measuring hole onto the gear's central axis, and the axis of the center of the first measuring hole coincides with the central axis of the gear of the gearbox. In this solution, the arc-shaped end face of the gear edge can be positioned on an arc line through the first measuring hole, facilitating measurement using measuring tools.

[0008] Furthermore, the measuring hole includes a second measuring hole, which is a strip-shaped hole. The second measuring hole at least partially overlaps with the projection of the gear of the gearbox in the vertical direction, and the second measuring hole extends radially along the gear. In this solution, the gear end face can be positioned radially through the strip-shaped hole, facilitating the measurement of multiple sets of data using measuring tools.

[0009] Furthermore, the multiple second measuring holes are arranged in a circular pattern, with the central axis of each second measuring hole coinciding with the central axis of the gear in the gearbox. In this design, multiple gear end face height data in the circumferential direction can be measured through the multiple circumferentially arranged strip holes, and the comprehensive calculation makes the measurement results more accurate.

[0010] Furthermore, the measuring hole also includes a third measuring hole, which is a circular hole. The third measuring hole at least partially coincides with the projection of the gear of the gearbox in the vertical direction, and the center of the third measuring hole is coaxially arranged with the gear of the gearbox. In this solution, the end face of the middle part of the gear can be positioned through the third measuring hole, so as to facilitate the measurement of the data of the middle end face of the gear using measuring tools.

[0011] Furthermore, the reference plate includes a plate body and a first mounting block, the first mounting block being detachably connected to the plate body, and the measuring hole being formed on the first mounting block. In this solution, by designing a detachable first mounting block, it is convenient to process the measuring hole and also convenient to disassemble and replace the first mounting block.

[0012] Furthermore, the measuring hole also includes a fourth measuring hole, which at least partially coincides with the projection of the end face of the gearbox housing in the vertical direction. In this solution, the end face of the gearbox housing can be positioned through the fourth measuring hole, facilitating the measurement of data on the end face of the gearbox housing using measuring tools.

[0013] Furthermore, the reference plate also includes a second mounting block, which is detachably connected to the plate body, and the fourth measuring hole is formed in the second mounting block. In this solution, by providing a detachable second mounting block, it is convenient to process the fourth measuring hole and also convenient to disassemble and replace the second mounting block.

[0014] Furthermore, it also includes a positioning sleeve, which is sleeved onto the fixed end of the measuring tool, and the end of the positioning sleeve away from the fixed end of the measuring tool abuts against the reference plate. In this solution, the positioning sleeve enables accurate positioning between the measuring tool and the reference plate, reducing the error in the placement of the measuring tool.

[0015] Furthermore, a clamping device is included, which is used to connect to the gearbox housing and clamp the gears. In this solution, the clamping device can clamp the gearbox gears, thereby measuring the shim size data under pressure.

[0016] Furthermore, the main body of the plate has a hollowed-out portion. In this design, the hollowed-out portion reduces the weight of the main body of the plate, thereby reducing the weight of the entire tooling and making it more convenient to use.

[0017] Furthermore, the reference plate is provided with a gripper. In this design, the gripper is provided to facilitate the handling and movement of the tooling.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] I. The gearbox shim selection fixture of this utility model uses a support member to set a reference plate parallel to the gearbox housing. The measuring tool uses the end face of the reference plate as the reference surface for measurement to measure the height difference between the end faces of each gear and the end face of the gearbox housing. Since the measuring tool uses the reference plate as a reference for measuring the height difference between the end faces of each gear, the measurement accuracy is high, and a suitable shim can be selected based on the measurement results.

[0020] II. The gearbox shim selection fixture of this utility model is equipped with different first measuring holes, second measuring holes, third measuring holes and fourth measuring holes, which can be selected according to the measurement point requirements of the gear end face, so as to obtain more accurate height data.

[0021] Third, the gearbox pad tooling of this utility model adopts a hollow design on the main body of the plate, which can reduce the overall weight of the tooling and improve portability.

[0022] IV. The gearbox shim selection fixture of this utility model is equipped with a clamping device, which can quickly clamp the gear and measure the shim size data under pressure.

[0023] V. The gearbox selection pad tooling of this utility model has a positioning sleeve at the fixed end of the measuring tool. The positioning sleeve can provide guidance for the measuring tool, increase the contact area between the fixed end of the measuring tool and the reference plate, reduce the error of the measuring tool placement, and improve the test stability. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the gearbox selection pad tooling of this utility model;

[0025] Figure 2 yes Figure 1 Top view;

[0026] Figure 3 This is a top view of another embodiment of the gearbox selection pad tooling of this utility model.

[0027] In the attached figures: 1. Reference plate; 11. Plate body; 12. First mounting block; 121. First measuring hole; 122. Second measuring hole; 123. Third measuring hole; 13. Second mounting block; 131. Fourth measuring hole; 14. Hollowed-out part; 15. Handle part; 2. Measuring tool; 21. Positioning sleeve; 3. Support component; 4. Clamping device; 100. Gearbox housing; 200. Gear. Detailed Implementation

[0028] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0029] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "long," and "short" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0030] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0031] Example 1

[0032] refer to Figure 1 and Figure 2This embodiment discloses a gearbox shim selection fixture, including a reference plate 1 and a measuring tool 2. A support member 3 is connected to the bottom of the reference plate 1. The support member 3 is used to connect with the gearbox housing 100 so that the reference plate 1 is arranged parallel to the end face of the gear 200 of the gearbox. A measuring hole is opened on the reference plate 1, and the measuring hole is set to correspond to the measurement point of the gearbox. The fixed end of the measuring tool 2 abuts against the reference plate 1, and the measuring end of the measuring tool 2 passes through the measuring hole to abut against the measurement point of the gearbox.

[0033] In this embodiment, the reference plate 1 is parallel to the gearbox housing 100 by the support member 3. The measuring tool 2 uses the end face of the reference plate 1 as the reference surface for measurement to measure the height difference between the end face of each gear 200 and the end face of the gearbox housing 100. Since the measuring tool 2 uses the reference plate 1 as a reference to measure the height difference of each gear end face, the measurement accuracy is high, and a suitable shim can be selected according to the measurement results.

[0034] Specifically, the reference plate 1 can be roughly rectangular flat, and all measuring holes on the reference plate 1 are located on the same height plane. The support member 3 can be connected to the four corners of the reference plate 1 and extend downwards to be positioned and connected to the end face of the gearbox housing 100, so that the reference plate 1 can be placed horizontally above the gearbox. The support member 3 can be positioned using existing structures on the end face of the gearbox housing 100, such as holes or slots, and can be matched and connected by designing corresponding structures. The width of the measuring hole is sufficient to allow the measuring end of the measuring instrument 2 to pass through, and the measuring instrument 2 can be a micrometer.

[0035] refer to Figure 1 and Figure 2 The measuring hole includes a first measuring hole 121, which is an arc-shaped hole. The projection of the first measuring hole 121 onto the gear of the gearbox in the vertical direction at least partially coincides with the projection of the gear in the first measuring hole 121 onto the central axis of the gear 200 of the gearbox. In this embodiment, the arc-shaped end face of the edge of the gear 200 can be positioned on an arc line through the first measuring hole 121, so as to facilitate measurement using the measuring tool 2.

[0036] Specifically, in this embodiment, the first measuring hole 121 can be an arc shape with a central angle slightly smaller than that of a semicircle, and two first measuring holes 121 are arranged opposite each other above a gear. Through the first measuring hole 121, the end face of the gear 200 below it can be measured circumferentially, and multiple sets of data can be taken along the circumference and averaged to make the measurement results more accurate.

[0037] refer to Figure 1 and Figure 2The measuring hole includes a second measuring hole 122, which is a strip-shaped hole. The second measuring hole 122 at least partially overlaps with the vertical projection of the gear 200 of the gearbox, and extends radially along the gear. In this embodiment, the strip-shaped hole allows for radial positioning of the end face of the gear 200, facilitating the measurement of multiple sets of data using the measuring tool 2. Compared to an arc-shaped hole, the strip-shaped hole provides a larger measurement range in the radial direction, making it suitable for various measurement needs.

[0038] refer to Figure 1 and Figure 2 Multiple second measuring holes 122 are arranged circumferentially, with the central axis of each second measuring hole 122 coinciding with the central axis of the gear in the gearbox. In this embodiment, multiple gear end face height data in the circumferential direction can be measured through multiple circumferentially arranged strip holes, and the comprehensive calculation makes the measurement results more accurate. For example, four second measuring holes 122 can be evenly arranged circumferentially, with adjacent second measuring holes 122 set at a 90-degree angle, so that radially extended dimension data can be measured from four directions. In other embodiments, the number of second measuring holes 122 can be other values.

[0039] refer to Figure 1 and Figure 2 The measuring hole also includes a third measuring hole 123, which is a circular hole. The third measuring hole 123 at least partially coincides with the projection of the gear of the gearbox in the vertical direction, and the center of the third measuring hole 123 is coaxially arranged with the gear 200 of the gearbox. In this embodiment, the end face of the middle part of the gear can be positioned through the third measuring hole 123 to facilitate the measurement of the data of the middle end face of the gear using the measuring tool 2. In some embodiments, the third measuring hole 123 may be disposed at the center of a plurality of first measuring holes 121 or at the center of a plurality of second measuring holes 122.

[0040] refer to Figure 1 and Figure 2 The reference plate 1 includes a plate body 11 and a first mounting block 12. The first mounting block 12 is detachably connected to the plate body 11. A first measuring hole 121, a second measuring hole 122, and a third measuring hole 123 are formed on the first mounting block 12. In this embodiment, by providing a detachable first mounting block 12, it is convenient to process the first measuring hole 121, the second measuring hole 122, and the third measuring hole 123, and it is also convenient to disassemble and replace the first mounting block 12.

[0041] Specifically, a mounting groove can be formed on the plate body 11, and an annular connecting part is provided inside the mounting groove. The annular connecting part has a threaded hole, and the first mounting block 12 can be placed in the mounting groove and fixed to the annular mounting part with bolts. The first measuring hole 121, the second measuring hole 122 and the third measuring hole 123 can be distributed on the first mounting block 12 according to actual needs, and the number of the first mounting blocks 12 can be set according to the number of gearbox gears to be measured.

[0042] refer to Figure 1 and Figure 2 The measuring hole also includes a fourth measuring hole 131, which at least partially coincides with the projection of the end face of the gearbox housing 100 in the vertical direction. In this embodiment, the end face of the gearbox housing 100 can be positioned through the fourth measuring hole 131 to facilitate the measurement of the end face data of the gearbox housing 100 using the measuring tool 2. Specifically, the fourth measuring hole 131 can be located near the edge of the reference plate 1, so that the fourth measuring hole 131 corresponds to the edge end of the gearbox housing 100. The fourth measuring hole 131 can be set at the four edges of the reference plate 1, and the average of measurements from different directions can be calculated to obtain more accurate end face height data of the gearbox housing 100.

[0043] refer to Figure 1 and Figure 2 The reference plate 1 also includes a second mounting block 13, which is detachably connected to the plate body 11. A fourth measuring hole 131 is formed in the second mounting block 13. In this embodiment, the design of a detachable second mounting block 13 facilitates the processing of the fourth measuring hole 131 and also facilitates the removal and replacement of the second mounting block 13. The second mounting block 13 can be fixed to the four corners of the plate body 11 by bolts.

[0044] refer to Figure 1 and Figure 2 The main body 11 of the plate has a cutout portion 14. In this embodiment, multiple cutout portions 14 can be provided. The cutout portions 14 can reduce the weight of the main body 11 of the plate, thereby reducing the weight of the entire tooling and making it more convenient to use. The reference plate 1 is provided with a gripper portion 15. In this embodiment, the gripper portion 15 is provided to facilitate the handling and movement of the tooling.

[0045] refer to Figure 2 In some embodiments, the main body 11 of the plate is provided with three first mounting blocks 12 and four second mounting blocks 13. One of the first mounting blocks 12 is provided with a second measuring hole 122 and a third measuring hole 123, and the other two first mounting blocks 12 are provided with a first measuring hole 121 and a third measuring hole 123. The four second mounting blocks 13 are respectively located at the four corners of the main body 11. (See reference) Figure 3 In some other embodiments, with Figure 1 The difference shown is that only the second measuring hole 122 is provided on the first mounting block 12. In actual design and use, the specific arrangement can be made according to the position of the gearbox housing 100 and gears to be measured, and any arrangement and combination thereof should be within the scope of disclosure of this embodiment. Figure 1 and Figure 3 These can be gearbox shims or tooling required for measuring the two corresponding parts after opening a gearbox of a certain model.

[0046] Example 2

[0047] refer to Figure 1 This embodiment is similar to Embodiment 1, except that in this embodiment, the gearbox selection pad fixture further includes a positioning sleeve 21. The positioning sleeve 21 is sleeved with the fixed end of the measuring tool 2, and the end of the positioning sleeve 21 away from the fixed end of the measuring tool 2 abuts against the reference plate 1. In this embodiment, the positioning sleeve 21 enables accurate positioning between the measuring tool 2 and the reference plate 1, reducing the placement error of the measuring tool 2.

[0048] Example 3

[0049] refer to Figure 3 This embodiment is similar to Embodiment 1, except that the gearbox shim selection fixture in this embodiment further includes a clamping device 4. The clamping device 4 is used to connect with the gearbox housing 100 and clamp the gear 200. The clamping device 4 has a clamping member that directly contacts the gear under pressure. The clamping member has a clearance groove, which corresponds to the position of the measuring hole. The measuring end of the measuring tool 2 can pass through the clearance groove and contact the gear, so the clamping device 4 will not affect the measurement. In this embodiment, the clamping device 4 can clamp the gearbox gear, thereby measuring and obtaining the shim selection size data under pressure.

[0050] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A gearbox selection pad tool, characterized by: The device includes a reference plate (1) and a measuring tool (2). The bottom of the reference plate (1) is connected to a support member (3). The support member (3) is used to connect to the gearbox housing (100) so that the reference plate (1) is arranged parallel to the end face of the gear (200) of the gearbox. The reference plate (1) has a measuring hole, which is set to correspond to the measurement point of the gearbox. The fixed end of the measuring tool (2) abuts against the reference plate (1), and the measuring end of the measuring tool (2) passes through the measuring hole to abut against the measurement point of the gearbox.

2. The gearbox selection pad tooling of claim 1, wherein: The measuring hole includes a first measuring hole (121), which is an arc-shaped hole. The projection of the first measuring hole (121) on the gear of the gearbox in the vertical direction at least partially coincides with the projection of the gearbox gear, and the axis of the center of the first measuring hole (121) coincides with the central axis of the gear of the gearbox.

3. The gearbox selection pad tool of claim 1, wherein: The measuring hole includes a second measuring hole (122), which is a strip-shaped hole. The second measuring hole (122) at least partially overlaps with the projection of the gear of the gearbox in the vertical direction, and the second measuring hole (122) extends radially along the gear.

4. The gearbox selection pad tooling of claim 3, wherein: The plurality of second measuring holes (122) are arranged in a circle, and the central axis of each second measuring hole (122) coincides with the central axis of the gear of the gearbox.

5. The gearbox shim selection tooling according to claim 1, characterized in that: The measuring hole also includes a third measuring hole (123), which is a circular hole. The projection of the third measuring hole (123) on the gear of the gearbox in the vertical direction at least partially coincides with the projection of the gear of the gearbox in the vertical direction, and the center of the third measuring hole (123) is coaxially arranged with the gear of the gearbox.

6. The gearbox selection pad tool of claim 1, wherein: The reference plate (1) includes a plate body (11) and a first mounting block (12). The first mounting block (12) is detachably connected to the plate body (11), and the measuring hole is opened on the first mounting block (12).

7. The gearbox selection pad tool of claim 6, wherein: The measuring hole also includes a fourth measuring hole (131), which at least partially coincides with the projection of the end face of the gearbox housing (100) in the vertical direction.

8. The gearbox selection pad tooling of claim 7, wherein: The reference plate (1) further includes a second mounting block (13), which is detachably connected to the plate body (11), and the fourth measuring hole (131) is opened in the second mounting block (13).

9. The gearbox shim selection tooling according to claim 1, characterized in that: It also includes a positioning sleeve (21), which is sleeved with the fixed end of the measuring tool (2), and the end of the positioning sleeve (21) away from the fixed end of the measuring tool (2) abuts against the reference plate (1).

10. The gearbox selection pad tool of claim 1, wherein: It also includes a clamping device (4) for connecting to the gearbox housing (100) and clamping the gear (200).

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