Gear gear ring M value measuring instrument

Abstract

The invention discloses a gear ring M value measuring instrument. The gear ring M value measuring instrument comprises a measuring table, a mounting cavity and an elastic device, wherein the mounting cavity and the elastic device are arranged in the measuring table; a movable measuring head seat and a fixed measuring head seat are arranged in the mounting cavity; and the elastic device is used for driving the movable measuring head seat to move towards or back to the fixed measuring head seat. According to the gear and gear ring M value measuring instrument, the movable measuring head can be driven to move only by rotating the wrench disc, measurement is convenient, and the measurement is not influenced by manpower. According to the gear ring M value measuring instrument, the measurement size can be adjusted, the measurement direction can be adjusted, and the same measuring instrument can measure an inner gear and an outer gear.

Description

Technical Field

[0001] The invention belongs to the field of measurement technology, and in particular relates to a gear ring M value measuring instrument. Background Art

[0002] The gear and gear ring M value measuring instruments commonly used in the market today have certain limitations. For example, the adjustable range of the M value measured by the instrument is small, gears with various parameters are not universal, the high and low sections of the M value measurement cannot be adjusted, and internal gears and external gears cannot be measured on the same set of instruments, etc. Summary of the invention

[0003] The object of the present invention is to provide a gear ring M value measuring instrument, which can solve the limitations of the above-mentioned background technology, increase measurement efficiency and reduce use costs.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A gear ring M value measuring instrument, comprising:

[0006] A measuring platform, wherein a mounting cavity is provided inside the measuring platform, a connecting hole connected to the mounting cavity is provided on a side wall of the measuring platform, a micrometer is installed on the connecting hole, and a dial gauge head is located in the mounting cavity;

[0007] A top plate, the top plate is fixed to the upper side of the installation cavity, and a sliding groove is provided on the top plate;

[0008] Two fixed shafts, the two fixed shafts are parallel and both fixed in the installation cavity;

[0009] A movable probe seat, wherein the movable probe seat is provided with two sliding holes, the two fixed shafts respectively pass through the two sliding holes, a movable measuring rod passing through the sliding groove is fixed on the probe seat, a movable probe is fixed on the movable measuring rod, a dial joint is provided on the movable probe seat, and the dial joint is in contact with the dial head of the micrometer (the elastic force of the micrometer itself can make its tip always in contact with the dial joint); the movable measuring rod and the movable probe seat are connected by a sliding fit;

[0010] A fixed probe seat, the fixed probe seat is fixed to the top plate, a fixed measuring rod is fixed to the fixed probe seat, and a fixed probe is fixed to the fixed measuring rod; the fixed probe seat is fixed to the top plate by bolts, and the position of the fixed probe seat is adjustable; the fixed measuring rod and the fixed probe seat are connected by a sliding fit;

[0011] A wrench disc, a rotating sliding groove is provided on the side wall of the measuring platform, the wrench disc is in driving connection with the rotating sliding groove, and the wrench disc performs circular rotation along its own axis in the rotating sliding groove; a driving groove is provided on the wrench disc; a rotating shaft is provided at the axis of the wrench disc, and the rotating shaft is fixed in the rotating sliding groove, and the tip position of the rotating sliding groove on the side close to the driving groove is smoothed, thereby expanding the movement displacement of the mobile probe seat;

[0012] An adjusting block, wherein the adjusting block is provided with an adjusting hole, a fixed shaft close to the wrench disc passes through the adjusting hole, the adjusting block is arranged on a side of the movable probe seat facing away from the micrometer, an adjusting column is fixed on the adjusting block, and the adjusting column is plugged into the driving groove;

[0013] The elastic device has the tendency to drive the movable probe seat to move toward or away from the fixed probe seat.

[0014] In the above technical solution, further, a wrench rod is fixed on the wrench disc, and the wrench rod is located outside the measuring platform.

[0015] Furthermore, the elastic device includes an elastic torsion spring, a spring clamp and a fixed wheel, the elastic torsion spring includes a first connecting end and a second connecting end, the fixed wheel is fixed on the measuring platform, the fixed wheel is provided with a connecting shaft, the spring clamp is fixed on the movable probe seat, the elastic torsion spring is sleeved on the connecting shaft, the fixed wheel is provided with a first through hole, the spring clamp is provided with a second through hole, the first connecting end is plugged into the first through hole, and the second connecting end is plugged into the second through hole.

[0016] Furthermore, by rotating the fixed wheel, the fixed wheel drives the first connecting end to move, so that the elastic torsion spring has a tendency to drive the mobile probe seat to move toward or away from the fixed probe seat, and fixes the fixed wheel on the measuring platform.

[0017] Furthermore, the size of the driving groove is larger than that of the adjusting column, so that the adjusting column can move freely in the driving groove when the measuring head seat moves.

[0018] Furthermore, the gear ring M value measuring instrument of the present invention can be used to measure internal gears or external gears; the specific method of using the gear ring M value measuring instrument to measure internal gears is as follows: first, the ball heads of the mobile probe and the fixed probe are set in opposite directions, and the elastic device is adjusted so that it has a tendency to drive the mobile probe to move away from the fixed probe; then, the wrench rod is toggled to move the mobile probe in the direction of the fixed probe, the part to be measured is placed, and then the wrench rod is released, and the elastic device drives the mobile probe to move in the opposite direction of the fixed probe to complete the measurement;

[0019] The gear ring M value measuring instrument is used to measure the external gear. The specific method is as follows: first, the directions of the ball heads of the mobile probe and the fixed probe are set to point to the center, and the elastic device is adjusted so that it has a tendency to drive the mobile probe to move in the direction close to the fixed probe; then, the wrench rod is turned to move the mobile probe in the opposite direction of the fixed probe, the part to be measured is placed, and then the wrench rod is released, and the elastic device drives the mobile probe to move in the direction of the fixed probe to complete the measurement.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] (1) The mobile probe can be driven by simply turning the wrench disc, which makes measurement convenient and will not be affected by human power;

[0022] (2) When the movable probe seat is moved by force, the second connection end will bend by force; when the force on the movable probe seat disappears, the second connection end is reset, thereby driving the movable probe seat back to its original position, and the elastic device can ensure that the movable probe is in close contact with the workpiece during measurement;

[0023] (3) The height of the mobile probe and the fixed probe from the ground can be adjusted by sliding the respective probe rods and the probe base;

[0024] (4) The elastic torsion spring can not only adjust the measurement size but also the measurement direction, so that the same measuring instrument can measure both internal and external gears;

[0025] (5) By adjusting the position of the fixed probe seat, the fixed measuring rod can be slid and adjusted in the sliding groove of the top plate, so that the measuring instrument can have a large stroke adjustment range. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the gear ring M value measuring instrument of the present invention;

[0027] Figure 2 for Figure 1 The top view of

[0028] Figure 3 for Figure 2 Cross-sectional view at AA in the middle;

[0029] Figure 4 This is a schematic diagram of the internal structure of the gear ring M value measuring instrument;

[0030] Figure 5 for Figure 4 Schematic diagram of the structure from another angle;

[0031] Figure 6 for Figure 5 A partial enlarged view of point I in the middle;

[0032] Figure 7 It is a schematic diagram of the structure of an elastic torsion spring.

[0033] In the figure: 1. measuring table; 2. mounting cavity; 3. connecting hole; 4. micrometer; 5. top plate; 6. sliding groove; 7. fixed shaft; 8. movable probe seat; 9. movable measuring rod; 10. movable measuring head; 11. gauge joint; 12. fixed probe seat; 13. fixed measuring rod; 14. fixed measuring head; 15. wrench disk; 16. rotating sliding groove; 17. driving groove; 18. adjusting block; 19. adjusting column; 20. wrench rod; 21. elastic torsion spring; 22. spring clamp; 23. fixed wheel; 24. first connecting end; 25. second connecting end; 26. connecting shaft; 27. first through hole; 28. second through hole; 29. ​​fixing groove. DETAILED DESCRIPTION

[0034] like Figure 1-3 A gear ring M value measuring instrument is provided in an embodiment of the present invention. The gear ring M value measuring instrument comprises:

[0035] A measuring platform 1, wherein a mounting cavity 2 is provided inside the measuring platform 1, a connecting hole 3 communicating with the mounting cavity 2 is provided on a side wall of the measuring platform 1, a micrometer 4 is installed on the connecting hole 3, and a dial head of the micrometer 4 is located in the mounting cavity 2;

[0036] A top plate 5, the top plate 5 is fixed to the upper side of the installation cavity 2, and a sliding groove 6 is provided on the top plate 5;

[0037] Two fixed shafts 7, the two fixed shafts 7 are parallel to each other, and both are fixed in the installation cavity 2;

[0038] A movable probe seat 8 is provided with two sliding holes, two fixed shafts 7 respectively pass through the two sliding holes, a movable measuring rod 9 passing through the sliding groove 6 is fixed on the movable probe seat 8, a movable probe 10 is fixed on the movable measuring rod 9, a meter joint 11 is provided on the movable probe seat 8, and the meter joint 11 contacts the meter head of the micrometer 4 (the elastic force of the micrometer 4 can keep its tip in contact with the meter joint 11); the movable measuring rod 9 and the movable probe seat 8 are connected by a sliding fit;

[0039] A fixed probe seat 12 is fixed on the top plate 5, a fixed measuring rod 13 is fixed on the fixed probe seat 12, and a fixed probe 14 is fixed on the fixed measuring rod 13; the fixed probe seat 12 is fixed to the top plate 5 by bolts, and the position of the fixed probe seat 12 is adjustable; the fixed measuring rod 13 and the fixed probe seat 12 are connected by a sliding fit;

[0040] The wrench disc 15 is provided with a rotating sliding groove 16 on the side wall of the measuring platform 1, the wrench disc 15 is transmission-connected with the rotating sliding groove 16, and the wrench disc 15 is provided with a driving groove 17; a rotating shaft is provided at the axis of the wrench disc 15, and the rotating shaft is fixed in the rotating sliding groove 16, and the tip position of the rotating sliding groove 16 on the side close to the driving groove 17 is smoothed, thereby expanding the movement displacement of the mobile probe seat 8;

[0041] An adjusting block 18 is provided with an adjusting hole, through which the fixed shaft 7 close to the wrench disc 15 passes. The adjusting block 18 is arranged on the side of the mobile probe base 8 facing away from the micrometer 4. An adjusting column 19 is fixed on the adjusting block 18, and the adjusting column 19 is plugged into the driving groove 17. The size of the driving groove 17 is larger than the adjusting column 19, so that the adjusting column 19 can move freely in the driving groove 17 when the mobile probe base 8 moves.

[0042] The elastic device has a tendency to drive the movable probe base 8 to move toward the fixed probe base 12.

[0043] When measurement is needed, one hand rotates the wrench disc 15. During the rotation of the wrench disc 15, the driving groove 17 can move relative to the adjustment column 19, thereby driving the adjustment block 18 to move toward the micrometer 4. The adjustment block 18 drives the mobile probe seat 8 to move toward the micrometer 4. The gauge joint 11 on the mobile probe seat 8 compresses the gauge head of the micrometer 4. At this time, the other hand places the workpiece between the fixed probe 14 and the mobile probe 10, and then releases the wrench disc 15. The elastic device drives the mobile probe seat 8 to move toward the fixed probe seat 12, so that the mobile probe 10 contacts the workpiece to complete the measurement. During the measurement process, you only need to rotate the wrench disc 15 to drive the mobile probe 10 to move. You can take the workpiece with one hand and control the movement of the mobile probe 10 with the other hand, which is convenient for measurement.

[0044] like Figure 1 As shown, a wrench rod 20 is fixed on the wrench disc 15, and the wrench rod 20 is located outside the measuring platform 1. The rotation of the wrench disc 15 can be controlled by the wrench rod 20, and the rotation is more convenient.

[0045] like Figure 4-Figure 6 As shown, the elastic device includes an elastic torsion spring 21, a spring clamp 22 and a fixing wheel 23, and the elastic torsion spring 21 includes a first connecting end 24 and a second connecting end 25 (as shown in FIG. Figure 7As shown), the first connecting end 24 is arranged parallel to the axis of the elastic torsion spring 21, the second connecting end 25 is arranged perpendicular to the axis of the elastic torsion spring 21, the fixed wheel 23 is fixed on the fixing groove 29 of the measuring platform 1, the fixed wheel 23 is provided with a connecting shaft 26, the spring clamp 22 is fixed on the mobile probe seat 8, the elastic torsion spring 21 is sleeved on the connecting shaft 26, the fixed wheel 23 is provided with a first through hole 27, the spring clamp 22 is provided with a second through hole 28, the first connecting end 24 is plugged into the first through hole 27, and the second connecting end 25 is plugged into the second through hole 28.

[0046] Since the fixed wheel 23 is fixed on the fixed groove 29, the first connection end 24 is plugged into the first through hole 27, which can limit the first connection end 24, and the second connection end 25 is plugged into the second through hole 28, which can limit the second connection end 25. The fixed wheel 23 is rotated, and the fixed wheel 23 drives the first connection end 24 to move, so that the elastic torsion spring 21 has a tendency to drive the mobile probe seat to move toward the fixed probe seat, and fix the fixed wheel 23 on the fixed groove 29. When the mobile probe seat 8 is moved by force, the second connection end 25 will be bent by force; when the force on the mobile probe seat 8 disappears, the second connection end 25 is reset, thereby driving the mobile probe seat 8 back to its original position. The elastic device can ensure that the mobile probe is in close contact with the workpiece during measurement.

[0047] When using the gear ring M value measuring instrument of the present invention to measure internal gears, the directions of the ball heads of the mobile probe 10 and the fixed probe 14 are set opposite, and the fixed wheel 23 is adjusted so that the elastic force of the elastic torsion spring 21 drives the mobile probe 10 to move away from the fixed probe 14. At this time, the wrench rod 20 is turned to move the mobile probe 10 in the direction of the fixed probe 14, and the part to be measured is placed. Then, the wrench rod 20 is released, and the elastic force of the elastic torsion spring 21 will drive the mobile probe 10 to move in the opposite direction of the fixed probe 14 to complete the measurement.

[0048] When the gear ring M value measuring instrument of the present invention is used to measure the external gear, the direction of the ball head of the movable probe 10 and the fixed probe 14 is set to point to the center (such as Figure 1 ), adjust the fixed wheel 23 so that the elastic force of the elastic torsion spring 21 drives the mobile probe 10 to move in the direction close to the fixed probe 14. At this time, turn the wrench rod 20 to make the mobile probe 10 move in the opposite direction of the fixed probe 14, put the part to be measured, and then release the wrench rod 20. The elastic force of the elastic torsion spring 21 will drive the mobile probe 10 to move in the direction of the fixed probe 14 to complete the measurement.

Claims

1. A gear ring M value measuring instrument, characterized in that: It includes a measuring platform, a mounting cavity and an elastic device arranged inside the measuring platform; A movable probe seat and a fixed probe seat are provided in the installation cavity; a connecting hole connected to the installation cavity is provided on the side wall of the measuring platform, a micrometer is installed on the connecting hole, and the head of the micrometer is located in the installation cavity; a top plate is provided on the upper side of the installation cavity, and a sliding groove is provided on the top plate; two fixed shafts parallel to each other are also fixed in the installation cavity; two sliding holes are provided on the movable probe seat, and the two fixed shafts pass through the two sliding holes; a movable measuring rod passing through the sliding groove is fixed on the movable probe seat, a movable probe is fixed on the movable measuring rod, and the movable side head is located on the measuring platform; a meter joint is also provided on the movable probe seat, and the meter joint contacts the head of the micrometer ; The fixed probe seat is fixed to the top plate, and a fixed measuring rod passing through the sliding groove is fixed on the fixed probe seat, and a fixed probe is fixed on the fixed measuring rod; a rotating sliding groove is also provided on the side wall of the measuring platform, and a wrench disc is provided in the rotating sliding groove, and the wrench disc rotates in a circle along its own axis in the rotating sliding groove; a wrench rod is fixed on the wrench disc, and the rotation of the wrench disc is controlled by the wrench rod; a driving groove is also provided on the wrench disc; an adjusting block is provided on the side of the mobile probe seat facing away from the micrometer, and an adjusting hole and an adjusting column are fixed on the adjusting block, a fixed shaft close to the wrench disc passes through the adjusting hole, and the adjusting column is plugged into the driving groove; The elastic device is used to drive the movable probe base to move toward or away from the fixed probe base.

2. The gear ring M value measuring instrument according to claim 1, characterized in that: The elastic device includes an elastic torsion spring, a spring clamp and a fixed wheel; the elastic torsion spring includes a first connecting end and a second connecting end, the first connecting end is arranged parallel to the axis of the elastic torsion spring, and the second connecting end is arranged perpendicular to the axis of the elastic torsion spring; the fixed wheel is fixed on the measuring platform, the fixed wheel is provided with a connecting shaft, and the elastic torsion spring is sleeved on the connecting shaft; the spring clamp is fixed on the mobile probe seat; the fixed wheel is provided with a first through hole, the spring clamp is provided with a second through hole, the first connecting end is plugged into the first through hole, and the second connecting end is plugged into the second through hole.

3. The gear ring M value measuring instrument according to claim 2, characterized in that: The elastic device is used to drive the mobile probe seat to move toward or away from the fixed probe seat, specifically: rotate the fixed wheel, the fixed wheel drives the first connecting end to move, so that the elastic torsion spring has a tendency to drive the mobile probe seat to move toward or away from the fixed probe seat, and fix the fixed wheel on the measuring table.

4. The gear ring M value measuring instrument according to claim 1, characterized in that: The fixed probe seat is fixed to the top plate by bolts, and the position of the fixed probe seat is adjustable.

5. The gear ring M value measuring instrument according to claim 1, characterized in that: The fixed measuring rod and the fixed measuring head seat, as well as the movable measuring rod and the movable measuring head seat are connected by sliding fit.

6. The gear ring M value measuring instrument according to claim 1, characterized in that: A rotating shaft is provided at the axis of the wrench disc, and the rotating shaft is fixed in the rotating sliding groove to smooth the tip position of the rotating sliding groove on the side close to the driving groove, thereby expanding the movement displacement of the mobile probe seat.

7. The gear ring M value measuring instrument according to claim 1, characterized in that: The driving groove is larger than the adjusting column, so that the adjusting column can move freely in the driving groove when the measuring head seat moves.

8. The gear ring M value measuring instrument according to any one of claims 1 to 7, characterized in that: It can be used to measure internal gears or external gears. The gear ring M value measuring instrument is used to measure internal gears. The specific method is as follows: first, the ball heads of the mobile probe and the fixed probe are set in opposite directions, and the elastic device is adjusted to have a tendency to drive the mobile probe to move away from the fixed probe; then, the wrench rod is toggled to move the mobile probe in the direction of the fixed probe, the part to be measured is placed, and then the wrench rod is released, and the elastic device drives the mobile probe to move in the opposite direction of the fixed probe to complete the measurement; The gear ring M value measuring instrument is used to measure the external gear. The specific method is as follows: first, the directions of the ball heads of the mobile probe and the fixed probe are set to point to the center, and the elastic device is adjusted so that it has a tendency to drive the mobile probe to move in the direction close to the fixed probe; then, the wrench rod is turned to move the mobile probe in the opposite direction of the fixed probe, the part to be measured is placed, and then the wrench rod is released, and the elastic device drives the mobile probe to move in the direction of the fixed probe to complete the measurement.

Images