Profile tooth cross-rod distance testing fixture

Abstract

The utility model discloses a profile tooth cross-rod distance testing fixture, and relates to the cross-rod distance technical field, the profile tooth cross-rod distance testing fixture comprises a testing fixture main body matched with a meter calibration piece, two sides of the testing fixture main body are connected with a mounting plate through a plurality of bolts, a groove is arranged in the testing fixture main body, a handle is fixedly arranged at the upper end of the testing fixture main body, and the handle is connected with the mounting plate through a plurality of bolts. The device further comprises a detection mechanism, and the detection mechanism is arranged in the groove and used for detecting cross-rod distances of different specifications. Compared with existing measuring tools such as a cross-rod distance micrometer and a gear center, the profile tooth cross-rod distance gauge is low in manufacturing cost, saves measuring cost, improves measuring precision and measuring efficiency under the cooperation of a detecting mechanism, adapts to different environments, can achieve cross-rod distance detection of different parameters, and is high in universality. Through replacing the measuring ball and adjusting the position of the fixed measuring piece, cross-rod distance detection of different specifications can be realized, and comparison measurement is carried out through the calibration piece, so that the detection precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of over-pin distance, in particular to an over-pin distance gauge for external teeth. Background Technique

[0002] Gear transmission refers to a device that transmits motion and power by a gear pair, and it is a mechanical transmission method most widely used in modern various equipment. Gear transmission has the advantages of high efficiency, compact structure, reliable operation, long service life, etc. Therefore, in order to achieve the above advantages, very precise requirements are imposed on various parameters of the gear. The over-pin distance is one of the most important parameters. Therefore, during the gear processing process, it is necessary to strictly control whether the over-pin distance meets the usage requirements.

[0003] In the prior art, the over-pin distance is often measured by means of a micrometer combined with a pitch circle measuring rod, an over-pin distance micrometer or a gear measuring center. However, the above methods all have the disadvantage of inconvenient measurement. For example, the detection operation of the micrometer combined with the pitch circle measuring rod is relatively difficult and the detection efficiency is low; the detection efficiency of the over-pin distance micrometer for detecting the over-pin distance is relatively low and the compatibility is small; the price of the gear measuring center is very expensive, the environmental requirements are high, and it cannot be popularized and used.

[0004] Based on this, an over-pin distance gauge for external teeth is now provided, which can eliminate the drawbacks existing in the prior art solutions. Content of the Utility Model

[0005] The purpose of the utility model is to provide an over-pin distance gauge for external teeth to solve the problem of inconvenient measurement of the over-pin distance in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] An over-pin distance gauge for external teeth includes a gauge body adapted to a dial indicator part. Both sides of the gauge body are connected to a mounting plate through a plurality of bolts. A groove is arranged inside the gauge body. A handle is fixedly installed at the upper end of the gauge body. It further includes a detection mechanism which is arranged inside the groove and is used for detecting different specifications of over-pin distances.

[0008] The detection mechanism includes symmetrically arranged crossed roller guides. A V-block is slidably arranged between the crossed roller guides. One end of the V-block is fixedly installed with a movable arm through a bolt. Through holes are respectively arranged at the upper and lower ends of the gauge body close to the movable arm. The lower end of the movable arm extends to the outside of the through hole and is connected with a movable probe. A guide rod is arranged on the side of the V-block away from the movable arm. A spring assembly is arranged on one side of the guide rod. An adjustable assembly is arranged at the bottom of the gauge body.

[0009] Preferably, the spring assembly includes a guide block fixedly connected to the inner wall of the groove. The guide block is slidably connected to the guide rod. One end of the guide rod is provided with a fixing nut in a threaded manner. A compression spring is arranged between the fixing nut and the guide block, and the compression spring is sleeved outside the guide rod.

[0010] Preferably, the adjustable assembly includes a chute opened on the lower surface of the inspection tool body. A plurality of round holes are arranged at equal intervals on the top wall of the chute. A fixed arm is slidably arranged inside the chute. The lower end of the fixed arm is connected with a fixed probe. The fixed arm is threadedly connected with a threaded post that is in threaded cooperation with the round hole, and the fixed arm is fixedly connected to the inspection tool body through the threaded post.

[0011] Preferably, an indicating gauge is arranged on one side of the inspection tool body. The measuring column of the indicating gauge extends into the inspection tool body and contacts the surface of the movable arm. The indicating gauge is fixedly connected to the inspection tool body through a plurality of screws.

[0012] Preferably, a moving groove is arranged on one side of the handle.

[0013] Preferably, a connecting column is arranged at the upper end of the movable arm. An activity handle is arranged above the connecting column. One end of the activity handle extends outside the through hole and is hinged to the inner wall of the groove.

[0014] Preferably, the movable probe is detachably connected to the movable arm, and the fixed probe is detachably connected to the fixed arm.

[0015] Preferably, a protrusion is arranged on one side of the activity handle close to the connecting column, and the protrusion contacts the connecting column.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. The present utility model provides an external tooth pitch diameter inspection tool. Compared with existing measuring tools such as pitch diameter micrometers and gear centers, the manufacturing cost is low, which greatly saves the measurement cost. With the cooperation of the detection mechanism, the measurement accuracy and measurement efficiency are improved, it can adapt to different environments, and through the comparison measurement with the dial indicator, the detection accuracy is improved;

[0018] 2. The present utility model can realize the detection of different parameter pitch diameters through simple component replacement, and has strong versatility. By replacing the measuring ball and adjusting the position of the fixed probe, the detection of different specifications of pitch diameters can be realized, and the measuring ball can be replaced with other forms of probes, which is convenient for measuring parameters such as different diameters and wall thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of one side of the present utility model.

[0020] Figure 2 Schematic diagram of the structure on the other side of the present utility model.

[0021] Figure 3 Schematic diagram of the internal structure of the present utility model.

[0022] Figure 4 Schematic diagram of the structure of the present utility model.

[0023] Figure 5 Cross-sectional view of the present utility model.

[0024] Figure 6 For the present utility model Figure 5 Enlarged view of part A.

[0025] Annotation of reference numerals in the drawings: 101, dial indicator adjusting piece; 102, gauge body; 103, mounting plate; 104, groove; 105, handle; 106, dial indicator; 200, detection mechanism; 201, crossed roller guide; 202, V-block; 203, movable arm; 204, movable measuring pin; 205, guide block; 206, fixing nut; 207, compression spring; 208, chute; 209, fixed arm; 210, fixed measuring pin; 211, connecting column; 212, movable handle; 213, protrusion. Detailed implementation manners

[0026] In order to make the purpose, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the drawings and embodiments.

[0027] Embodiment 1

[0028] In this embodiment, as Figures 1-6 shown, an external gear pitch diameter gauge includes a gauge body 102 adapted to a dial indicator adjusting piece 101, and the calibration effect of the gauge is achieved through the dial indicator adjusting piece 101. Both sides of the gauge body 102 are connected to a mounting plate 103 through a plurality of bolts, which is convenient for overhauling and replacing the internal structure. A groove 104 is provided inside the gauge body 102, and a handle 105 is fixedly installed at the upper end of the gauge body 102 for convenient movement. It further includes a detection mechanism 200, which is arranged inside the groove 104 and is used for detecting the pitch diameters of different specifications. Before the external gear pitch diameter gauge starts to be used, first check whether the gauge can be used normally through the dial indicator adjusting piece 101, and then place the workpiece to be detected between the fixed measuring pin 210 and the movable measuring pin 204, so that the gauge enters the state to be used;

[0029] The detection mechanism 200 includes crossed roller guides 201 arranged symmetrically. A V-block 202 is slidably arranged between the crossed roller guides 201. One end of the V-block 202 is fixedly installed with a movable arm 203 through bolts. Through holes are opened at both the upper and lower ends of the inspection tool main body 102 on the side close to the movable arm 203. The lower end of the movable arm 203 extends to the outside of the through hole and is connected with a movable probe 204. A guide rod is arranged on the side of the V-block 202 away from the movable arm 203. A spring assembly is arranged on one side of the guide rod. An adjustable assembly is arranged at the bottom of the inspection tool main body 102;

[0030] Among them, as Figure 5 shown, the spring assembly includes a guide block 205 fixedly connected to the inner wall of the groove 104. The guide block 205 is slidably connected with the guide rod. A fixing nut 206 is threadedly arranged at one end of the guide rod. A compression spring 207 is arranged between the fixing nut 206 and the guide block 205. The compression spring 207 is sleeved on the outside of the guide rod;

[0031] Among them, as Figures 3-5 shown, the adjustable assembly includes a chute 208 opened on the lower surface of the inspection tool main body 102. A number of round holes are arranged at equal intervals on the top wall of the chute 208. A fixed arm 209 is slidably arranged inside the chute 208. The lower end of the fixed arm 209 is connected with a fixed probe 210. The fixed arm 209 is threadedly connected with a threaded column that is threadedly matched with the round hole. The fixed arm 209 is fixedly connected to the inspection tool main body 102 through the threaded column. By setting the threaded column, it is convenient to replace and move the fixed arm 209, which is suitable for workpieces to be detected with different size specifications;

[0032] Among them, as Figures 1-5 shown, an indicating gauge 106 is arranged on one side of the inspection tool main body 102. The measuring column of the indicating gauge 106 extends into the inspection tool main body 102 and contacts the surface of the movable arm 203. The indicating gauge 106 is fixedly connected to the inspection tool main body 102 through a number of screws, so that during the contact process between the measuring column and the movable arm 203, the value can be accurately displayed, which is convenient to obtain an accurate value of the wire diameter;

[0033] Among them, as Figure 5 shown, a moving groove is arranged on one side of the handle 105, which is convenient for the movable handle 212 to move inside the moving groove;

[0034] Among them, as Figure 5 and Figure 6 shown, a connecting column 211 is arranged at the upper end of the movable arm 203. An activity handle 212 is arranged above the connecting column 211. One end of the activity handle 212 extends to the outside of the through hole and is hinged to the inner wall of the groove. By pressing the activity handle 212 by the user, the movable arm 203 and the V-block 202 can be driven to move through the connecting column 211;

[0035] Among them, as Figure 5and Figure 6 As shown in Figure 6 , a protrusion 213 is provided on one side of the movable handle 212 close to the connecting column 211. The protrusion 213 is in contact with the connecting column 211 to ensure the normal use of the inspection tool and improve the overall use effect.

[0036] Embodiment 2

[0037] Differing from Embodiment 1, as shown in Figures 2-5 Figures 2-5 , the movable probe 204 and the movable arm 203 are detachably connected, and the fixed probe 210 and the fixed arm 209 are detachably connected, which is convenient for replacing components.

[0038] Working principle: Before the measurement starts, use the dial indicator calibrator 101 to zero the inspection tool so that it is in a zero-adjusted state before measurement. Fix the two measurement balls on the surfaces of the fixed probe 210 and the movable probe 204 respectively. During measurement, move the movable arm 203, which in turn drives the movable probe 204 to move, thereby achieving the effect of measuring the product. The displacement of the movable probe 204 transmits the value to the dial indicator 106 through the measuring column, and the value is displayed on the dial indicator 106, so as to read the chordal distance of the measured product. The structure is simple and the practicability is good.

[0039] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A profile tooth span gauge, comprising a gauge body (102) adapted to a calibration piece (101), both sides of the gauge body (102) being connected to a mounting plate (103) via a plurality of bolts, a groove (104) being provided inside the gauge body (102), and a handle (105) being fixedly mounted on the upper end of the gauge body (102); It is characterized in that It also includes a detection mechanism (200), which is arranged inside the groove (104) and is used to perform detection operations on span distances of different specifications; The detection mechanism (200) comprises symmetrically arranged cross roller guide rails (201), a V-shaped block (202) is slidably arranged between the cross roller guide rails (201), a movable arm (203) is fixedly mounted on one end of the V-shaped block (202) by means of bolts, through holes are provided at both upper and lower ends of a side of the gauge body (102) close to the movable arm (203), the lower end of the movable arm (203) extends to the outside of the through hole and is connected to a movable measuring element (204), a guide rod is provided on a side of the V-shaped block (202) away from the movable arm (203), a spring assembly is provided on one side of the guide rod, and an adjustable assembly is provided at the bottom of the gauge body (102).

2. The profile tooth span gauge according to claim 1, characterized in that: The spring assembly comprises a guide block (205) fixedly connected to the inner wall of the groove (104); the guide block (205) is slidably connected to a guide rod; a fixing nut (206) is threadedly provided at one end of the guide rod; a compression spring (207) is provided between the fixing nut (206) and the guide block (205); and the compression spring (207) is sleeved on the outer side of the guide rod.

3. The profile tooth span gauge according to claim 2, characterized in that: The adjustable component comprises a slide groove (208) provided on the lower surface of the gauge body (102); a plurality of circular holes are arranged at equal intervals on the top wall of the slide groove (208); a fixed arm (209) is slidably arranged inside the slide groove (208); a fixed measuring element (210) is connected to the lower end of the fixed arm (209); a threaded column that matches the thread of the circular hole is threadedly connected to the fixed arm (209); and the fixed arm (209) is fixedly connected to the gauge body (102) via the threaded column.

4. The profile tooth span gauge according to claim 1, characterized in that: An indicator gauge (106) is provided on one side of the gauge body (102); a measuring column of the indicator gauge (106) extends into the interior of the gauge body (102) and contacts the surface of the movable arm (203); and the indicator gauge (106) is fixedly connected to the gauge body (102) by a plurality of screws.

5. The profile tooth span gauge according to claim 1, characterized in that: A moving groove is provided on one side of the handle (105).

6. The profile tooth span gauge according to claim 1, characterized in that: A connecting column (211) is provided at the upper end of the movable arm (203), and a movable handle (212) is provided above the connecting column (211), one end of the movable handle (212) extends to the outside of the through hole and is hinged to the inner wall of the groove.

7. The profile tooth span gauge according to claim 3, characterized in that: The movable measuring element (204) and the movable arm (203) are detachably connected, and the fixed measuring element (210) and the fixed arm (209) are detachably connected.

8. The profile tooth span gauge according to claim 6, characterized in that: A protrusion (213) is provided on one side of the movable handle (212) close to the connecting column (211), and the protrusion (213) is in contact with the connecting column (211).

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