Integrated integrated inspection fixture for gear forging blanks

Abstract

An integrated integrated inspection tool for a combined tooth forging blank includes: a base and a positioning mechanism arranged on the base, three distance measuring mechanisms, a diameter detection mechanism and a combined tooth runout measurement mechanism, wherein: the distance measuring mechanism, the diameter detection mechanism and the combined tooth runout measurement mechanism are arranged around the positioning mechanism and are in contact with the forging blank to be measured respectively. The device integrates a height inspection tool, an outer diameter inspection tool and a combined tooth runout inspection tool into one, and can detect multiple indicators at one time without moving the forging blank, and the operation is simple and fast, with high accuracy, and is suitable for on-site measurement.

Description

Technical Field

[0001] The invention relates to a technology in the field of automobile manufacturing, in particular to an integrated comprehensive inspection tool for the height, diameter and runout of a combined tooth forging blank. Background Art

[0002] The one-piece combined gear is a key component in the transmission. The one-piece combined gear is usually processed by forging, and then a qualified finished product is made through machining and other processes. In order to ensure that the size of the forging is qualified and avoid the phenomenon of insufficient margin during machining, the key parameters of the forging need to be measured and screened after forging. The traditional measurement method uses a vernier caliper to measure different sizes one by one. The combined gear runout requires a separate gauge to measure, there are many detection tools, the measurement process is cumbersome and the measurement time is long, which reduces the efficiency of on-site measurement. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the present invention proposes an integrated comprehensive gauge for combined tooth forging blanks, which integrates a height gauge, an outer diameter gauge, and a combined tooth runout gauge into one. It can detect multiple indicators at one time without moving the forging blank, and the operation is simple, fast, and accurate, and is suitable for on-site measurement.

[0004] The present invention is achieved through the following technical solutions:

[0005] The invention comprises: a base and a positioning mechanism arranged on the base, three distance measuring mechanisms, a diameter detection mechanism and a combined tooth runout measuring mechanism, wherein: the distance measuring mechanism, the diameter detection mechanism and the combined tooth runout measuring mechanism are arranged around the positioning mechanism and are respectively in contact with the forging blank to be measured.

[0006] The positioning mechanism comprises: a positioning seat of annular structure fixedly arranged on the base and a positioning block of V-shaped structure, wherein: the combined tooth forging blank to be tested is arranged parallel to the positioning seat and is pressed against the positioning block by its own gravity.

[0007] The distance measuring mechanism comprises: a measuring arm arranged on a base, and a probe and a measuring table respectively connected to the two ends of the measuring arm, wherein: the probe is vertically slidably arranged on the measuring arm and parallel to the central axis direction of the positioning seat. After positioning is completed, the probe drives the measuring table at the other end to move for measurement through the measuring arm.

[0008] The distance measuring mechanism is preferably provided with a horizontal slide rail at the bottom, and can move forward and backward via the horizontal slide rail.

[0009] A rotary switch is arranged on the rear side of the horizontal slide rail for controlling the moving distance of the horizontal slide rail.

[0010] The diameter detection mechanism comprises: two measuring arms movably arranged on the transmission rod, wherein: the first diameter measuring arm and the second diameter measuring arm are respectively arranged on both sides of the positioning mechanism, and the two measuring arms are respectively provided with a probe and a measuring table in contact with the combined gear forging blank to be measured, and the measuring table and the transmission rod move horizontally on the same axis.

[0011] The combined tooth runout measuring mechanism comprises: a measuring arm movably arranged on a base through a horizontal guide rail and a rotating arm connected to the horizontal guide rail, wherein: the horizontal guide rail adjusts the horizontal moving distance through the rotating arm, a probe is provided at one end of the measuring arm, and a measuring table is provided at the other end.

[0012] Technical Effects

[0013] Compared with the prior art, the present invention can measure three dimensions, namely height, diameter and run-out, at the same time; the wear of parts of the nose bridge height probe when measuring run-out is avoided by means of structures such as horizontal slide rails; the device is easy to operate, highly efficient, and has high dimensional measurement accuracy and small measurement error. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1a and Figure 1b It is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the nose bridge height measurement structure;

[0016] Figure 3 a and Figure 3 b is a schematic diagram of the outer diameter measurement structure;

[0017] Figure 4 This is a schematic diagram of the step height measurement structure;

[0018] Figure 5 It is a schematic diagram of the combined tooth runout measurement structure;

[0019] Figure 6 This is a schematic diagram of the flange thickness measurement structure;

[0020] In the figure: 1 base, 2 cushion block, 3 first positioning block, 4 positioning seat, 5 first machine foot, 6 second machine foot, 7 fixing bar, 101 horizontal slide rail, 102 positioning bar, 103 measuring table fixing block, 104 second positioning block, 105 measuring seat, 106 nose bridge height measuring arm, 107 nose bridge height probe, 108 rotary switch, 109 nose bridge height measuring table, 110 horizontal slide rail top, 120 vertical guide column, 121 spring, 201 positioning plate, 202 third positioning block, 203 measuring seat, 204 horizontal guide column, 205 spring, 206 diameter second measuring arm, 207 outer diameter probe, 208 transmission rod, 209 first fixing block , 210 outer diameter measuring scale, 211 first diameter measuring arm, 301 positioning bar, 302 step height measuring arm, 303 step height measuring probe, 304 step height measuring scale, 401 second fixed block, 402 horizontal guide rail, 403 fourth positioning block, 404 third fixed block, 405 limit plate, 406 combined tooth runout measuring scale, 407 fourth measuring arm, 408 probe, 409 rotating seat, 410 rotating arm, 411 connecting rod, 412 transmission arm, 501 fifth positioning block, 502 thickness measuring arm, 503 first limit bar, 504 second limit bar, 505 control lever, 506 flange thickness measuring scale, 507 limit plate. DETAILED DESCRIPTION

[0021] like Figure 1a and Figure 1b As shown, this embodiment includes: a base 1 and a positioning mechanism a arranged on the base 1, three distance measuring mechanisms b, c, d, a diameter detection mechanism e and a combined tooth runout measurement mechanism f.

[0022] The positioning mechanism a comprises: a cushion block 2, a first positioning block 3 and a positioning seat 4.

[0023] like Figure 2 As shown, the first distance measuring mechanism b includes: a positioning bar 102, a measuring table fixing block 103, a second positioning block 104, a measuring seat 105, a nose bridge height measuring arm 106, a nose bridge height measuring head 107, a nose bridge height measuring table 109, a vertical guide column 120, and a spring 121.

[0024] The first distance measuring mechanism is further provided with a horizontal slide rail 101 and a rotary switch 108. The rotation of the rotary switch 108 can drive the nose bridge height measuring mechanism to slide radially.

[0025] like Figure 2 , Figure 3 a and Figure 3As shown in b, the diameter detection mechanism e includes: a positioning plate 201, a third positioning block 202, a measuring seat 203, a horizontal guide column 204, a spring 205, a second diameter measuring arm 206, an outer diameter probe 207, a transfer rod 208, a first fixed block 209, an outer diameter measuring gauge 210, and a first diameter measuring arm 211.

[0026] like Figure 4 As shown, the second distance measuring mechanism c comprises: a positioning bar 301 , a step height measuring arm 302 , a step height measuring head 303 and a step height measuring table 304 .

[0027] like Figure 5 As shown, the combined tooth runout measuring mechanism f includes: a second fixed block 401, a horizontal guide rail 402, a fourth positioning block 403, a third fixed block 404, a limit plate 405, a combined tooth runout measuring table 406, a fourth measuring arm 407, a probe 408, a rotating seat 409, a rotating arm 410, a connecting rod 411, and a transmission arm 412.

[0028] like Figure 6 As shown, the third distance measuring mechanism d comprises: a fifth positioning block 501 , a thickness measuring arm 502 , a first limiting strip 503 , a second limiting strip 504 , a control rod 505 , a flange thickness measuring gauge 506 , and a limiting plate 507 .

[0029] As shown in Figure 1~ Figure 6 As shown, the device works in the following ways:

[0030] Zeroing operation: place the standard part on the positioning seat 4, and make the outer diameter of the standard part close to the V-shaped first positioning block 3. At this time, the standard part will contact the nose bridge height probe 107, the step height probe 303, and the outer diameter probe 207; by rotating the control lever 505, the first limit bar 503 is rotated clockwise to the position in contact with the second limit bar 504. At this time, the flange thickness measuring gauge 506 contacts the standard part and rotates. Rotate the dials of each measuring gauge to make the pointers of the nose bridge height measuring gauge 109, the step height measuring gauge 304, the outer diameter measuring gauge 210, and the flange thickness measuring gauge 506 point to zero.

[0031] Step 1. After placing the combined tooth forging blank to be tested on the positioning seat 4, the combined tooth forging blank to be tested contacts the nose bridge height probe 107, and the measuring seat 105, the nose bridge height measuring arm 106, and the nose bridge height probe 107 move downward along the vertical guide column 120 as a whole. The rotary switch 108 is rotated to make the top of the horizontal slide rail 110 and the first distance measuring mechanism b move horizontally as a whole, so that the nose bridge height probe 107 is located at the measured position of the combined tooth forging blank to be tested. Due to the change in the height of the measuring seat 105, the pointer of the nose bridge height measuring meter 109 rotates, and the value in the table is recorded. Whether the pointer exceeds the required range is used to draw a conclusion on whether the combined tooth forging blank to be tested is qualified.

[0032] Step 2, bend the second fixed block 401 clockwise, and drive the probe 408 to move to the measurement origin through the connecting rod 411, the transmission arm 412, the fourth positioning block 403, and the fourth measuring arm 407; then rotate the rotating arm 410 counterclockwise, and drive the probe 408 to move to the left as a whole and be located between the two combining teeth through the transmission arm 412, the fourth positioning block 403, the third fixed block 404, the combined tooth runout measurement meter 406, and the fourth measuring arm 407. At this time, the probe of the combined tooth runout measurement meter 406 is against the first limit plate 405, and the data pointed by the pointer is the basic position data; after adjusting the dial to zero, withdraw the probe 408, change the combined tooth position and repeat the measurement, calculate the maximum and minimum ranges indicated by the pointer between different combined teeth, and then draw a conclusion on whether the combined tooth runout of the combined tooth forging blank to be tested is qualified.

[0033] Step three, use the operating lever 505 to rotate the thickness measuring arm 502 counterclockwise to the position in contact with the second limit plate 507; then use the operating lever 505 to rotate the thickness measuring arm 502 clockwise until the first limit bar 503 contacts the second limit bar 504. At this time, the probe of the flange thickness measuring gauge 506 contacts the combined gear forging blank to be measured, and the value in the table is recorded. By checking whether the pointer exceeds the required range, it is concluded whether the flange thickness of the combined gear forging blank to be measured is qualified.

[0034] The above-mentioned specific implementation can be partially adjusted in different ways by those skilled in the art without departing from the principle and purpose of the present invention. The protection scope of the present invention shall be based on the claims and shall not be limited by the above-mentioned specific implementation. Each implementation scheme within its scope shall be subject to the constraints of the present invention.

Claims

1. A comprehensive inspection tool for an integrated gear forging blank, characterized in that: include: A base and a positioning mechanism arranged on the base, three distance measuring mechanisms, a diameter detection mechanism and a combined tooth runout measuring mechanism respectively used to measure the nose bridge height, the step height and the flange thickness, wherein: the distance measuring mechanism, the diameter detection mechanism and the combined tooth runout measuring mechanism are arranged around the positioning mechanism and are respectively in contact with the forging blank to be measured; The positioning mechanism comprises: a positioning seat of an annular structure fixedly arranged on the base and a positioning block of a V-shaped structure, wherein: the combined tooth forging blank to be tested is arranged parallel to the positioning seat and is pressed against the positioning block by its own gravity; The first distance measuring mechanism in the distance measuring mechanism comprises: a positioning bar, a measuring table fixing block, a second positioning block, a measuring seat, a nose bridge height measuring arm, a nose bridge height measuring head, a nose bridge height measuring table, a vertical guide column, a spring, a horizontal slide rail and a rotary switch, and the nose bridge height measuring mechanism is driven to slide radially by the rotation of the rotary switch; The second distance measuring mechanism in the distance measuring mechanism comprises: a positioning bar, a step height measuring arm, a step height measuring head and a step height measuring table; The third distance measuring mechanism in the distance measuring mechanism includes: a fifth positioning block, a thickness measuring arm, a first limit strip, a second limit strip, a control rod, a flange thickness measuring gauge, and a limit plate; The diameter detection mechanism comprises: two measuring arms movably arranged on the transmission rod, wherein: the first diameter measuring arm and the second diameter measuring arm are respectively arranged on the two sides of the positioning mechanism, and the two measuring arms are respectively provided with a probe and a measuring table in contact with the combined gear forging blank to be measured, and the measuring table and the transmission rod move horizontally on the same axis; The combined tooth runout measuring mechanism comprises: a measuring arm movably arranged on a base through a horizontal guide rail and a rotating arm connected to the horizontal guide rail, wherein: the horizontal guide rail adjusts the horizontal moving distance through the rotating arm, a probe is provided at one end of the measuring arm, and a measuring meter is provided at the other end; A rotary switch is provided on the rear side of the horizontal slide rail to control the moving distance of the horizontal slide rail; The comprehensive inspection tool described works in the following ways: Zero adjustment operation: Place the standard part on the positioning seat, and make the outer diameter of the standard part close to the positioning block of the V-shaped structure. At this time, the standard part will contact the nose bridge height probe, step height probe, and outer diameter probe; by turning the control lever, the first limit bar will rotate clockwise to the position in contact with the second limit bar. At this time, the flange thickness measuring gauge will rotate in contact with the standard part, and the dials of each measuring gauge will be turned to make the pointers of the nose bridge height measuring gauge, step height measuring gauge, outer diameter measuring gauge, and flange thickness measuring gauge point to zero position; Step 1: After placing the combined gear forging blank to be tested on the positioning seat, the combined gear forging blank to be tested is in contact with the nose bridge height probe, the measuring seat, the nose bridge height measuring arm, and the nose bridge height probe are moved downward along the vertical guide column as a whole, and the rotary switch is rotated to make the top of the horizontal slide rail and the first distance measuring mechanism move horizontally as a whole, so that the nose bridge height probe is located at the measured position of the combined gear forging blank to be tested. Due to the change in the height of the measuring seat, the pointer of the nose bridge height measuring table rotates, and the value in the table is recorded. Whether the pointer exceeds the required range is used to draw a conclusion on whether the combined gear forging blank to be tested is qualified; Step 2, bend the second fixed block clockwise, and drive the probe to move to the measurement origin through the connecting rod, the transmission arm, the fourth positioning block, and the fourth measuring arm; then rotate the rotating arm counterclockwise, and drive the probe to move to the left as a whole and be located between the two combining teeth through the transmission arm, the fourth positioning block, the third fixed block, the combined tooth runout measurement table, and the fourth measuring arm. At this time, the probe of the combined tooth runout measurement table is against the first limit plate, and the data pointed by the pointer is the basic position data; after adjusting the dial to zero, withdraw the probe, change the combined tooth position and repeat the measurement, calculate the maximum and minimum ranges indicated by the pointer between different combined teeth, and then draw a conclusion on whether the combined tooth runout of the combined tooth forging blank to be tested is qualified; Step 3: Use the operating lever to rotate the thickness measuring arm counterclockwise to the position in contact with the second limit plate; then use the operating lever to rotate the thickness measuring arm clockwise until the first limit bar contacts the second limit bar. At this time, the flange thickness measuring gauge probe contacts the combined gear forging blank to be measured, and the values ​​in the table are recorded. Whether the pointer exceeds the required range can be used to draw a conclusion on whether the flange thickness of the combined gear forging blank to be measured is qualified.

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