Mixing mistake-proofing tool for support
By designing special anti-error tooling for support A and support B, using the difference between positioning holes and positioning pins to identify the bearing type, the problem of bearing pressing errors caused by bearing mixing is solved, and a correctly installed bearing pressing is achieved.
Patent Information
- Application Number
- CN202422460885.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-10-11
AI Technical Summary
During the assembly process of existing drive shaft products, support A and support B have similar appearances and are prone to mixing materials, resulting in bearing pressing errors and quality problems.
Design the anti-error tooling for support A and support B, identify the bearing type through different arrangements of positioning holes and positioning pins to ensure the correct installation of bearings.
Effectively prevent the phenomenon of supporting mixing, ensure the bearing is properly pressed and avoid quality problems.
Smart Images
Figure CN223265161U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of drive shafts, in particular to a support mixing error prevention tooling. Background Art
[0002] like Figure 1 、 2 As shown, during the assembly process of existing drive shaft products, there are two types of bearing supports with different structural sizes, namely support A (1) and support B (2). The two supports only have slightly different mounting hole sizes, and are otherwise the same and very similar in appearance. During the press-fitting process of the support bearings, it is very easy for material mixing to occur, that is, support A is mixed into support B, or support B is mixed into support A. The press-fitting of the support bearings uses a U-shaped bearing press-fitting tool (3), which is placed on the bearing (4) and pressed into the bearing by a press. Since support A and support B are very similar in appearance, material mixing is easy to occur, causing customer quality complaints. Utility Model Content
[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a support material mixing and error prevention tooling. If material mixing occurs in the support during the support bearing press-fitting process, the support material mixing can be identified and discovered through the bearing installation error prevention tooling, thereby preventing the wrong support from being press-fitted into the bearing.
[0004] The purpose of the present invention is to achieve the following technical solutions: the support mixing error prevention tooling comprises a support A, a support B, a first tooling and a second tooling, wherein the centers of the support A and the support B are provided with mounting holes for pressing in bearings, and both sides of the support A and the support B are provided with positioning holes, wherein the line connecting the two positioning holes of the support A is collinear with the center of the mounting hole, while the line connecting the two positioning holes of the support B is not collinear with the center of the mounting hole; the lower end surfaces of the first tooling and the second tooling are provided with positioning bosses , used to position the bearing, and cooperate with the press to press the bearing into the mounting hole. Locating pins are provided on both sides of the first tooling and the second tooling, wherein the line connecting the two locating pins of the first tooling is collinear with the center of the locating boss, while the line connecting the two locating pins of the second tooling is not collinear with the center of the locating boss. During press-fitting, the locating pin of the first tooling matches the locating hole of support A, and interferes with the locating hole of support B. The locating pin of the second tooling matches the locating hole of support B, and interferes with the locating hole of support A.
[0005] As a further technical solution, pin holes are provided on both sides of the first tooling and the second tooling, and positioning pins are installed in the corresponding pin holes.
[0006] As a further technical solution, it also includes a base, which is supported on the bottom of support A and support B during press-fitting, and the width of the base is smaller than the width of support A and support B, so that after the bearing is fully pressed into the mounting hole, the locating pins pass through the corresponding locating holes and are located on both sides of the base.
[0007] As a further technical solution, protrusions are provided on the upper parts of the first tooling and the second tooling for the press to press.
[0008] The beneficial effects of the utility model are:
[0009] 1. Two types of error-proofing fixtures, the first fixture and the second fixture, are designed for support A and support B respectively. The first fixture is only compatible with support A, while the second fixture is only compatible with support B. This allows the fixture to identify and detect support material mixing during the bearing press-fitting process, preventing quality issues such as support material mixing.
[0010] 2. The bottom of support A and support B are supported by the base, while avoiding the positioning pins. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a structural diagram of the support A during press-fitting in the prior art.
[0012] Figure 2 It is a structural diagram of the support B during press-fitting in the prior art.
[0013] Figure 3 This is a schematic diagram of the main structure of the support A in the present invention.
[0014] Figure 4 It is a schematic cross-sectional structural diagram of the support A in the present invention.
[0015] Figure 5 This is a schematic diagram of the main structure of the support B in the present invention.
[0016] Figure 6 It is a schematic cross-sectional structural diagram of the support B in the present invention.
[0017] Figure 7 This is a schematic diagram of the main structure of the first tool in the utility model.
[0018] Figure 8 for Figure 7 AA cross-sectional view.
[0019] Figure 9 This is a schematic diagram of the main structure of the second tooling in the present utility model.
[0020] Figure 10 for Figure 9 BB cross-sectional view.
[0021] Figure 11 This is a structural diagram of the first tooling and the support A in the present invention when press-fitting the bearing.
[0022] Figure 12 This is a structural diagram of the first tooling and the support A in the present invention after the bearing is press-fitted.
[0023] Figure 13 This is a structural diagram of the second tooling and support B in the present invention when press-fitting the bearing.
[0024] Figure 14 This is a structural diagram of the second tooling and support B in the present invention when press-fitting the bearing.
[0025] Explanation of the accompanying reference numerals: support A1, support B2, bearing press-fitting tool 3, bearing 4, first tool 5, second tool 6, positioning pin 7, positioning boss 8, mounting hole 9, base 10, positioning hole 11, pin hole 12. DETAILED DESCRIPTION
[0026] The following is a detailed introduction to the present invention with reference to the accompanying drawings:
[0027] Example: As shown in the attached Figures 3 to 14 As shown, this support mixing and error prevention tooling includes a support A1, a support B2, a bearing press-fitting tooling 3, a bearing 4, a first tooling 5, a second tooling 6, a positioning pin 7, a positioning boss 8, a mounting hole 9, a base 10, a positioning hole 11 and a pin hole 12.
[0028] Reference Attachment Figure 3 、 4 , 5, 6, a mounting hole 9 is provided in the center of each support A1 and support B2, into which the bearing 4 is pressed, and ears are provided on both sides of each support A1 and support B2, and positioning holes 11 are symmetrically provided on the ears. Figure 3 As shown, the line connecting the two positioning holes 11 of the support A1 is collinear with the center of the mounting hole 9, that is, the angle formed by the line connecting the centers of the two positioning holes 11 and the center of the mounting hole 9 is 180°. Figure 5 As shown, the line connecting the two positioning holes 11 of the support B2 is not collinear with the center of the mounting hole 9, and the angle formed by the line connecting the centers of the two positioning holes 11 and the center of the mounting hole 9 is 165°.
[0029] Such as Figure 7 、 8 As shown in Figures 9 and 10, a positioning boss 8 is provided on the lower end surface of the first tooling 5 and the second tooling 6, which can position the bearing 4 before press-fitting. Preferably, a raised portion is provided on the upper part of the first tooling 5 and the second tooling 6, which can be used for pressing by the press to press the bearing 4 into the mounting hole 9.
[0030] Furthermore, a locating pin 7 is provided on both sides of the first fixture 5 and the second fixture 6. The line connecting the two locating pins 7 of the first fixture 5 is collinear with the center of the locating boss 8, while the line connecting the two locating pins 7 of the second fixture 6 is not collinear with the center of the locating boss 8. That is, the locating pin 7 of the first fixture 5 only corresponds to and matches the support A1, and the locating pin 7 of the second fixture 6 only corresponds to and matches the support B2. During press-fitting, the locating pin 7 of the first fixture 5 can be smoothly inserted into the locating hole 11 of the support A1, but interferes with the locating hole 11 of the support B2, preventing insertion and positioning. The locating pin 7 of the second fixture 6 can be smoothly inserted into the locating hole 11 of the support B2, but interferes with the locating hole 11 of the support A1, preventing insertion and positioning.
[0031] Preferably, pin holes 12 are provided on both sides of the first fixture 5 and the second fixture 6 , and the positioning pins 7 are threadedly fixed in the corresponding pin holes 12 .
[0032] like Figures 11-14 As shown, it also includes a base 10, which is supported at the bottom of the support A1 and the support B2 during press-fitting, and the width of the base 10 is smaller than the width of the support A1 and the support B2, so that after the bearing 4 is fully pressed into the mounting hole 9, the positioning pin 7 passes through the corresponding positioning hole 11 and is located on both sides of the base 10, as shown in FIG. Figure 12 、 14 shown.
[0033] The working process of the utility model: before the bearing 4 on the support A1 is installed, the first tool 5 is placed on the bearing 4, such as Figure 11 As shown, the bearing 4 is positioned at the upper end of the mounting hole 9 by the positioning boss 8, and the two positioning pins 7 of the first tool 5 are inserted into the two positioning holes 11 of the support A1. If mixing occurs, the support B2 is mixed into the support A1, and the positioning pins 7 of the first tool 5 will not be able to be inserted into the positioning holes 11 of the support B2. Before installing the bearing 4 on the support B2, place the second tool 6 on the bearing 4, as shown in FIG. Figure 13 As shown, bearing 4 is positioned at the top of mounting hole 9 using positioning boss 8, while two positioning pins 7 of second fixture 6 are inserted into two positioning holes 11 of support B2. If material mixing occurs, support A1 will be mixed into support B2, and positioning pins 7 of second fixture 6 will not fit into positioning holes 11 of support A1. Therefore, if support A1 and support B2 are mixed, the error-proofing fixture can identify and detect it.
[0034] It is understandable that for those skilled in the art, any equivalent replacement or change of the technical solution and the concept of the utility model should fall within the scope of protection of the claims attached to the utility model.
Claims
1. A support mixing error prevention tool, characterized by: The invention comprises a support A (1), a support B (2), a first tool (5) and a second tool (6), wherein the center of the support A (1) and the support B (2) are provided with a mounting hole (9) for pressing in the bearing (4), and both sides of the support A (1) and the support B (2) are provided with a positioning hole (11), wherein the line connecting the two positioning holes (11) of the support A (1) is collinear with the center of the mounting hole (9), while the line connecting the two positioning holes (11) of the support B (2) is not collinear with the center of the mounting hole (9); the lower end surfaces of the first tool (5) and the second tool (6) are provided with a positioning boss (8) for positioning the bearing (4) and cooperating with a press to press the bearing (4) into the support. In the mounting hole (9), positioning pins (7) are provided on both sides of the first fixture (5) and the second fixture (6), wherein the line connecting the two positioning pins (7) of the first fixture (5) is collinear with the center of the positioning boss (8), while the line connecting the two positioning pins (7) of the second fixture (6) is not collinear with the center of the positioning boss (8). During press-fitting, the positioning pins (7) of the first fixture (5) match the positioning holes (11) of the support A (1) and interfere with the positioning holes (11) of the support B (2), while the positioning pins (7) of the second fixture (6) match the positioning holes (11) of the support B (2) and interfere with the positioning holes (11) of the support A (1).
2. The support mixing error prevention tool according to claim 1, characterized in that: Pin holes (12) are provided on both sides of the first tooling (5) and the second tooling (6), and positioning pins (7) are installed in the corresponding pin holes (12).
3. The support mixing error prevention tool according to claim 1, characterized in that: It also includes a base (10) which is supported on the bottom of the support A (1) and the support B (2) during press-fitting, and the width of the base (10) is smaller than the width of the support A (1) and the support B (2), so that after the bearing (4) is completely pressed into the mounting hole (9), the positioning pin (7) passes through the corresponding positioning hole (11) and is located on both sides of the base (10).
4. The support mixing error prevention tool according to claim 1, characterized in that: The upper parts of the first tooling (5) and the second tooling (6) are provided with protrusions for the press to press.