Special gauge for symmetry degree of combination tooth window

Abstract

The utility model discloses a combination tooth window symmetry degree special-purpose detection tool comprising a pedestal, a detection bench, a telescopic plugging assembly cooperated with a combination tooth groove, a fixed plugging assembly cooperated with the combination tooth groove, a lifting driver, a plug pin cooperated with a window on a combination tooth in a plugging manner, a push rod, a gauge stand, a measuring gauge, and a measuring head. The telescopic plug-in assembly is installed on one side of the detection table, the fixed plug-in assembly is installed on the other side of the detection table, the lifting driver is installed on the base, a gap is formed between the lifting driver and the detection table, and the plug pin is fixed to the lifting driver so as to be driven by the lifting driver to ascend and descend. The ejector rod is fixed with the lifting driver so as to be driven by the lifting driver to ascend and descend, the gauge stand is fixed on the base, the measuring gauge is installed on the gauge stand, one end of the measuring head is matched with the measuring gauge, and the other end of the measuring head is a free end matched with the ejector rod. According to the utility model, detection efficiency can be improved and cost can be reduced.

Description

Technical Field

[0001] The utility model relates to a coupling tooth in a gearbox, in particular to a special inspection tool for the symmetry of a coupling tooth window. Background Art

[0002] The coupling gear (hereinafter referred to as coupling gear) is a part in the gearbox. Figure 4 As shown, some special coupling teeth A are provided with windows B. There are usually multiple windows B, and two windows with centers on the same diameter form a group. After the production of window B is completed, it is usually necessary to detect whether the position of window B is qualified, mainly to detect whether the actual center of the window deviates from the diameter where it should be located.

[0003] The current detection method is to use a three-coordinate measuring machine to detect the position of the window. Although the three-coordinate measuring machine has the characteristics of high detection accuracy, the detection time of the window is relatively long when the three-coordinate measuring machine is used to detect the window. Moreover, since the coupling tooth A is mass-produced, the use of the three-coordinate measuring machine is not conducive to matching with the production. In addition, the three-coordinate measuring machine is expensive. If each model of the coupling tooth is equipped with a three-coordinate measuring machine, the production cost will increase, and the cost directly affects the company's profitability. Therefore, how to reduce production costs and improve detection efficiency without using a three-coordinate measuring machine to detect the window is the current task. Utility Model Content

[0004] The utility model provides a special inspection tool for the symmetry of a tooth window, which can improve the inspection efficiency and reduce the cost.

[0005] A special inspection tool for the symmetry of a combined tooth window includes a base, a testing platform, a telescopic plug-in component that cooperates with the tooth groove of the combined tooth, a fixed plug-in component that cooperates with the tooth groove of the combined tooth, a lifting drive, a pin that cooperates with the window plug on the combined tooth, a push rod, a table base, a measuring table, and a probe. The testing platform is set on the base, the telescopic plug-in component is installed on one side of the testing platform, the fixed plug-in component is installed on the other side of the testing platform, the lifting drive is installed on the base, and there is a gap between the lifting drive and the testing platform. The pin is fixed to the lifting drive so as to be lifted and lowered under the drive of the lifting drive, the push rod is fixed to the lifting drive so as to be lifted and lowered under the drive of the lifting drive, the table base is fixed on the base, the measuring table is installed on the table base, one end of the probe cooperates with the measuring table, and the other end of the probe is a free end that cooperates with the push rod.

[0006] This new, specialized gauge allows for direct on-site measurement during the production process, reducing measurement time by 95% compared to a CMM. By adjusting the clamping position, the gauge can achieve 100% coverage of the different coupling window positions. This new gauge offers advantages such as improved CMM measurement time for coupling window symmetry and enhanced on-site immediacy. Furthermore, the cost of this new gauge is significantly lower than that of a CMM, significantly reducing costs when used on production lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is a three-dimensional image of a special inspection fixture for measuring the symmetry of tooth windows.

[0008] Figure 2 This is a cross-sectional view of a special inspection tool for measuring the symmetry of the tooth window.

[0009] Figure 3 for Figure 1 Enlarged view of the P part in the figure.

[0010] Figure 4 This is a structural diagram of the combined teeth.

[0011] Symbols in the accompanying drawings:

[0012] Base 1, slide rail 1a, testing table 2, first slide groove 2a, first threaded hole 2b, give way groove 2c, dividing line 2d, pin 3, push rod 4, dial base 5, measuring dial 6, probe 7, screw 8, support base 9, first connecting base 10, first plug-in component 11, first connecting screw 12, first spring 13, second connecting base 14, second plug-in component 15, bracket 16, guide rail 17, slider 18, linear drive 19, articulated base 19a, driving handle 19b, connecting rod 19c, protrusion 19d, guide base 19e, mounting base 20, fixing block 21, positioning block 22, coupling tooth A, window B. DETAILED DESCRIPTION

[0013] The present invention will be described in further detail below with reference to the accompanying drawings and specific implementations.

[0014] In the description of the present invention, it should 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 directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0015] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0016] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0017] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0018] The special inspection tool for the symmetry of the combined tooth window includes a base 1, a testing table 2, a telescopic plug-in component that cooperates with the tooth groove of the combined tooth, a fixed plug-in component that cooperates with the tooth groove of the combined tooth, a lifting drive, a pin 3 that plugs into the window on the combined tooth, a push rod 4, a table base 5, a measuring table 6, and a probe 7. The following is a detailed description of each part and the relationship between them:

[0019] The inspection platform 2 is mounted on a base 1, which is provided with a slide rail 1a. The inspection platform 2 also includes an adjustment assembly for adjusting the position of the inspection platform 2. The adjustment assembly is connected to the inspection platform 2 to drive the inspection platform 2 to slide on the slide rail 1a. Because the latch 3 can only move vertically, not horizontally, this structure allows the position of the inspection platform 2 to be adjusted according to the diameter of the coupling tooth A, thereby accommodating the inspection of windows B on coupling teeth A with different diameters.

[0020] The adjustment assembly includes a screw 8 and a support base 9. The support base 9 is mounted on the base 1. The screw 8 passes through the support base 9 and rotates with the support base 9. The testing platform 2 is provided with a threaded hole, and the screw 8 is threadedly connected to the threaded hole of the testing platform 2. Because the testing platform 2 slides with the slide rail 1a, and the screw 8 is threadedly connected to the testing platform 2, the screw 8, the testing platform 2, and the slide rail 1a form a screw mechanism. When adjustment is required, the screw 8 is rotated, and the screw 8 drives the testing platform 2 to move linearly along the slide rail 1a. When the testing platform 2 reaches the desired position, the screw 8 is stopped.

[0021] The telescopic plug-in assembly is installed on one side of the test platform 2, and the fixed plug-in assembly is installed on the other side of the test platform 2. The engaging tooth A is positioned by the telescopic plug-in assembly and the fixed plug-in assembly.

[0022] The telescopic plug-in assembly includes a first connecting seat 10, a first plug-in component 11, a first connecting screw 12, and a first spring 13. The detection platform 2 is provided with a first slide groove 2a, the first connecting seat 10 is clearance-matched with the first slide groove 2a, the first plug-in component 11 is fixed to the first connecting seat 10, and the first plug-in component 11 is located above the table surface of the detection platform 2 for supporting the combining tooth A. The first connecting seat 10 is provided with a step hole, and the detection platform 2 is provided with a first threaded hole 2b. The first connecting screw 12 passes through the step hole on the first connecting seat 10 and is threadedly connected to the first threaded hole 2b. The first spring 13 is sleeved on the first connecting screw 12, and one end of the first spring 13 is against the step surface of the step hole, and the other end of the first spring 13 is against the end face of the head of the first connecting screw 12.

[0023] The fixed plug assembly includes a second connecting seat 14 and a second plug component 15. The second connecting seat 14 is fixed to the testing platform 2, and the second plug component 15 is fixed to the second connecting seat 14. There are two second plug components 15 arranged at intervals. The second plug components 15 are located above the table surface of the testing platform 2 for supporting the coupling teeth A.

[0024] The lifting drive is installed on the base 1, with a gap between the lifting drive and the detection platform 2, the latch 3 is fixed to the lifting drive so as to be lifted and lowered under the drive of the lifting drive, and the push rod 4 is fixed to the lifting drive so as to be lifted and lowered under the drive of the lifting drive.

[0025] The lifting drive includes a bracket 16, a guide rail 17, a slider 18, a linear drive 19, and a mounting base 20. The bracket 16 is fixed to the base 1, the guide rail 17 is fixed on the bracket 16, and the linear drive 19 is connected to the bracket 16. The linear drive 19 can adopt a manual structure, and the linear drive 19 can also adopt components such as a cylinder and a hydraulic cylinder.

[0026] The linear driver 19 of the manual structure includes an articulated seat 19a, a driving handle 19b, and a connecting rod 19c. The articulated seat 19a is fixed on the bracket 16, and one end of the driving handle 19b is hinged to the articulated seat 19a. The driving handle 19b is provided with a protrusion 19d, which is hinged to the connecting rod 19c. The articulated seat 19a is provided with a guide seat 19e, and the guide seat 19e is provided with a guide hole.

[0027] The power output end of the linear actuator 19 is connected to the slider 18. The connecting rod 19c passes through the guide hole in the guide seat 19e and is connected to the slider 18. The mounting seat 20 is fixed to the slider 18. The latch 3 and the push rod 4 are respectively fixed to the slider 18. The latch 3 includes a connecting portion and a detecting portion. The connecting portion is fixed to the slider 18, and the detecting portion is fixed to the connecting portion. The detecting portion is tapered. The end surface of the tapered detecting portion is preferably spherical.

[0028] A gauge base 5 is fixed to the base 1, located on one side of the bracket 16. A measuring gauge 6 is mounted on the base 5. One end of a probe 7 engages with the measuring gauge 6, while the other end of the probe 7 is a free end that engages with the ejector pin 4. The probe 7 is arranged along the transverse direction X of the base 1, and the ejector pin 4 is arranged along the transverse direction X of the base 1. The lifting direction of the lifting actuator is parallel to the longitudinal direction Y of the base 1. In addition, a dividing line 2d is set on the surface of the testing table 2, dividing the surface of the testing table 2 into two symmetrical parts.

[0029] It also includes a positioning component, a clearance groove 2c is provided on the detection table 2, and the positioning component includes a fixed block 21 and a positioning block 22. The fixed block 21 is located in the positioning groove 2c, and the fixed block 21 and the positioning groove 2c are clearance-matched. A strip hole is provided on the fixed block 21, and a mounting hole is provided on the bottom surface of the positioning groove 2c. A screw is passed through the strip hole on the fixed block 21 and then threadedly connected with the mounting hole to fix the fixed block 21 to the detection table 2, and the positioning block 22 is fixed to the fixed block 21. When it is necessary to move the fixed block 21 along the clearance groove 2c, loosen the screw to move the fixed block 21 in the clearance groove 2c. After moving to the required position, the fixed block 21 is fastened to the detection table 2 by the screw. By adjusting the position of the fixed block 21, the position of the positioning block 22 can be adjusted.

[0030] The use process of this utility model is as follows:

[0031] Place the coupling tooth A to be tested on the table top of the testing table 2, and insert the first plug-in component 11 and the second plug-in component 15 into the tooth groove of the coupling tooth A respectively, so that the positioning block 22 is in contact with the coupling tooth A. In this case, one first plug-in component 11 and two second plug-in components 15 form three positioning points. According to the rule of defining a circle by three points, one first plug-in component 11 and two second plug-in components 15 form a circle with the center of the circle located on the dividing line 2d. Therefore, when the first plug-in component 11 and the second plug-in component 15 are respectively inserted into the tooth groove of the coupling tooth A, the center of the circle of the coupling tooth A automatically corresponds to the dividing line 2d. The linear actuator 19 drives the slider 18 to move linearly downward, and the pin 3 is inserted into the window B on the engaging tooth A. During the process of the pin 3 being plugged into the window B, if the position of the window B is unsatisfactory, the tapered surface of the pin 3 and the inner wall of the window B will be squeezed, so that the push rod 4 will generate pressure on the probe 7. The probe 7 causes the pointer on the measuring gauge 6 to swing, thereby measuring the actual tolerance of the window B.

Claims

1. Combined with the tooth window symmetry special inspection tool, it is characterized by: The invention comprises a base (1), a detection platform (2), a telescopic plug-in assembly matched with the tooth groove of the combination tooth, a fixed plug-in assembly matched with the tooth groove of the combination tooth, a lifting drive, a pin (3) plug-in matched with the window on the combination tooth, a push rod (4), a table base (5), a measuring table (6), and a probe (7). The detection platform (2) is arranged on the base (1), the telescopic plug-in assembly is installed on one side of the detection platform (2), the fixed plug-in assembly is installed on the other side of the detection platform (2), the lifting drive is installed on the base (1), a gap is provided between the lifting drive and the detection platform (2), the pin (3) is fixed to the lifting drive so as to be lifted and lowered under the drive of the lifting drive, the push rod (4) is fixed to the lifting drive so as to be lifted and lowered under the drive of the lifting drive, the table base (5) is fixed on the base (1), the measuring table (6) is installed on the table base (5), one end of the probe (7) is matched with the measuring table (6), and the other end of the probe (7) is a free end matched with the push rod (4).

2. The special inspection tool for the symmetry of the coupling tooth window according to claim 1 is characterized in that: The base (1) is provided with a slide rail (1a), and the detection platform (2) is in sliding cooperation with the slide rail (1a); It also includes an adjustment component for adjusting the position of the detection platform (2), and the adjustment component is connected to the detection platform (2) to drive the detection platform (2) to slide on the slide rail (1a).

3. The special inspection tool for the symmetry of the coupling tooth window according to claim 2 is characterized in that: The adjusting assembly comprises a screw (8) and a support seat (9), wherein the support seat (9) is mounted on the base (1), the screw (8) passes through the support seat (9) and is rotatably engaged with the support seat (9), and a threaded hole is provided on the detection platform (2), and the screw (8) is threadedly connected to the threaded hole on the detection platform (2).

4. The special inspection tool for the symmetry of the coupling tooth window according to claim 1 is characterized in that: The telescopic plug-in assembly comprises a first connecting seat (10), a first plug-in component (11), a first connecting screw (12), and a first spring (13); a first slide groove (2a) is provided on the detection platform (2); the first connecting seat (10) and the first slide groove (2a) are clearance-matched; the first plug-in component (11) is fixed to the first connecting seat (10); a step hole is provided on the first connecting seat (10); a first threaded hole (2b) is provided on the detection platform (2); the first connecting screw (12) passes through the step hole on the first connecting seat (10) and is threadedly connected to the first threaded hole (2b); the first spring (13) is sleeved on the first connecting screw (12); one end of the first spring (13) abuts against the step surface of the step hole, and the other end of the first spring (13) abuts against the end surface of the head of the first connecting screw (12).

5. The special inspection tool for the symmetry of the coupling tooth window according to claim 1 is characterized in that: The fixed plug-in assembly comprises a second connecting seat (14) and a second plug-in component (15); the second connecting seat (14) is fixed to the detection platform (2); and the second plug-in component (15) is fixed to the second connecting seat (14).

6. The special inspection tool for the symmetry of the coupling tooth window according to claim 1, characterized in that: The latch (3) comprises a connecting portion and a detecting portion, wherein the detecting portion is fixed to the connecting portion and is tapered.

7. The special inspection tool for the symmetry of the coupling tooth window according to claim 1, characterized in that: The lifting driver comprises a bracket (16), a guide rail (17), a slider (18), a linear driver (19), and a mounting seat (20). The bracket (16) is fixed to the base (1), the guide rail (17) is fixed to the bracket (16), the linear driver (19) is connected to the bracket (16), the power output end of the linear driver (19) is connected to the slider (18), the mounting seat (20) is fixed to the slider (18), and the latch (3) and the push rod (4) are respectively fixed to the slider (18).

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