Measuring device for helical angle of gear

Abstract

The utility model relates to the technical field of machining, and discloses a device for measuring a helical angle of a gear, which comprises an operating table in which a detector is movably connected, and is characterized in that an adjusting assembly is arranged on one side of the operating table and comprises a mounting shell, a driving shaft, a guide groove, a rack, a driving gear and a driving motor, the installation shell is fixedly connected with the inner wall of the operation table, the driving shaft is in sliding connection with the installation shell, the servo motor is fixedly connected with the installation shell, the driving gear is fixedly connected with an output shaft of the servo motor, the driving gear is in meshed connection with the rack, the rack is in transmission connection with the driving shaft, and the servo motor drives the driving gear to rotate through the output shaft. The driving gear is engaged to push the rack to move, the rack is limited by the limiting groove to move linearly, and the driving shaft drives the gear to rotate through the clamping rod, so that the detection surface is replaced, and the gear does not need to be remounted.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical processing, and in particular relates to a measuring device for a gear helical angle. Background Art

[0002] The involute cylindrical helical gear is a kind of gear commonly used in mechanical devices. When processing the involute cylindrical helical gear, it is necessary to measure the helix angle of the involute cylindrical helical gear so as to inspect the quality of the processed involute cylindrical helical gear.

[0003] A document with a publication number of (CN215338218U) has been retrieved, which discloses a laser precision measuring device for the helical angle of a helical cylindrical gear with good clamping effect, comprising a base, two support plates fixedly connected to the top of the base, a top plate fixedly connected to the top of the support plate, a scale bar engraved on the front of the top plate, and a clamping mechanism with one end penetrating through and extending to the opposite side of the two support plates fixedly connected to the opposite sides of the two support plates.

[0004] The above-mentioned device places an object between the two push plates to cancel the pulling force on the handle, so that the first spring brings the two push plates closer to each other through the reaction force, and the second spring and the telescopic rod cooperate with each other. The second spring reduces the squeezing and fixing of the object through the reaction force. However, after the device fixes the gear, the position of the gear is fixed, resulting in the above-mentioned device being limited in the detection position of the gear, and the gear needs to be removed, replaced and reinstalled for the next detection.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0007] A device for measuring the helix angle of a gear, comprising an operating table, wherein a detector is movably connected inside the operating table, and the device is characterized in that an adjustment component is provided on one side of the operating table, the adjustment component comprises a mounting shell, a drive shaft, a guide groove, a rack, a drive gear and a servo motor, the mounting shell is fixedly connected to the inner wall of the operating table, the drive shaft is slidably connected to the mounting shell, the servo motor is fixedly connected to the mounting shell, the drive gear is fixedly connected to the output shaft of the servo motor, the drive gear is meshingly connected to the rack, the rack is transmission-connected to the drive shaft, a guide groove is provided on the drive shaft, a clamping column is fixedly connected to the mounting shell, the clamping column is slidably connected to the guide groove, the guide groove and the clamping column cooperate to guide the sliding trajectory of the drive shaft, one end of the drive shaft is fixedly connected to a clamping rod, and the clamping rod is movably connected to the other side of the operating table.

[0008] As a preferred embodiment of the present utility model, the adjustment component further includes a limiting groove, the interior of the mounting shell is fixedly connected to the limiting groove, and the rack is slidably connected to the limiting groove.

[0009] As a preferred embodiment of the present utility model, the driving gear is sector-shaped as a whole, and the driving gear is intermittently meshed with the rack through the sector.

[0010] As a preferred embodiment of the present utility model, the adjustment component further includes a slide groove, the other end of the driving shaft is provided with the slide groove, and the rack is slidably connected to the slide groove.

[0011] As a preferred embodiment of the present utility model, the adjustment assembly further comprises an elastic member, which is sleeved on the clamping rod, one end of the elastic member is fixedly connected to the driving shaft, and the other end of the elastic member is fixedly connected to the mounting shell.

[0012] As a preferred embodiment of the utility model, a screw rod is provided on the other side of the operating table, the screw rod is threadedly connected to the operating table, the clamping rod is slidably connected to one end of the screw rod, a torsion spring is fixedly connected between the clamping rod and the screw rod, and a handle is provided at the other end of the screw rod.

[0013] As a preferred embodiment of the utility model, a driving motor is fixedly connected to one side of the operating table, a threaded rod is fixedly connected to the output shaft of the driving motor, and the threaded rod is rotatably connected to the operating table.

[0014] As a preferred embodiment of the utility model, a slider is provided on the threaded rod, the slider is threadedly connected to the threaded rod, and the detector is fixedly connected to the other end of the slider.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. A device for measuring the helix angle of a gear. The servo motor drives the driving gear to rotate through the output shaft. The driving gear meshes and pushes the rack to move. The rack is limited by the limit groove to perform linear motion. The driving shaft moves along the clamping column through the guide groove and rotates at the same time. The driving shaft drives the gear to rotate through the clamping rod, so that the detection surface can be replaced without reinstalling the gear.

[0017] 2. This device for measuring the helix angle of a gear intermittently meshes with the rack through a driving gear fan-shaped structure. At this time, the elastic member pushes the driving shaft back through its own elasticity, and the reset spring pushes the other measuring clamp rod back, and the gear rotates, thereby performing a secondary inspection on the gear and comparing the inspection data, thereby improving the accuracy of the inspection data of the device.

[0018] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In the attached picture:

[0020] Figure 1It is a three-dimensional schematic diagram of the utility model;

[0021] Figure 2 It is a cross-sectional view of the utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the installation shell of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure on the drive shaft of the utility model;

[0024] Figure 5 This is a working schematic diagram of the driving motor of the utility model driving the detector to move.

[0025] In the figure: 1. operating table; 2. driving motor; 21. threaded rod; 22. slider; 23. detector; 3. mounting shell; 31. driving shaft; 32. elastic member; 33. guide groove; 4. screw rod; 5. clamping rod; 6. rack; 61. driving gear; 62. servo motor; 63. limit groove; 64. slide groove. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.

[0027] See also Figure 1-5 A device for measuring a helical angle of a gear comprises an operating table 1, wherein a detector 23 is movably connected inside the operating table 1, and wherein an adjustment component is arranged on one side of the operating table 1, wherein the adjustment component comprises a mounting shell 3, a driving shaft 31, a guide groove 33, a rack 6, a driving gear 61 and a servo motor 62, wherein the mounting shell 3 is fixedly connected to the inner wall of the operating table 1, the driving shaft 31 is slidably connected to the mounting shell 3, the servo motor 62 is fixedly connected to the mounting shell 3, the driving gear 61 is fixedly connected to the output shaft of the servo motor 62, the driving gear 61 is meshedly connected to the rack 6, the rack 6 is transmission-connected to the driving shaft 31, and the driving gear 61 is fixedly connected to the output shaft of the servo motor 62. A guide groove 33 is provided on the shaft 31, and a clamping column is fixedly connected to the mounting shell 3. The clamping column is slidably connected to the guide groove 33, and the guide groove 33 cooperates with the clamping column to guide the sliding trajectory of the driving shaft 31. A clamping rod 5 is fixedly connected to one end of the driving shaft 31, and the clamping rod 5 is movably connected to the other side of the operating table 1. The servo motor 62 drives the driving gear 61 to rotate through the output shaft, and the driving gear 61 engages and pushes the rack 6 to move. The driving shaft 31 moves and rotates along the clamping column through the guide groove 33, and the driving shaft 31 drives the gear to rotate through the clamping rod 5, so that the detection surface can be replaced without reinstalling the gear.

[0028] It is worth mentioning that the detector 23 can measure the helix angle of the gear. An angle measurement structure is installed inside the detector 23, including a measuring instrument and a recorder. The helix angle is measured by contacting the measuring instrument with the gear surface, and the recorder records the measured data. The detector 23 has been disclosed in a measuring device for the helix angle of an involute cylindrical bevel gear in the prior art CN218380824U, and will not be repeated here.

[0029] The adjustment component further includes a limiting groove 63, the interior of the mounting shell 3 is fixedly connected to the limiting groove 63, the rack 6 is slidably connected to the limiting groove 63, and the rack 6 is limited in its range of motion by the limiting groove 63 to perform linear motion.

[0030] The driving gear 61 is fan-shaped as a whole, and the driving gear 61 is intermittently meshed with the rack 6 through the fan shape.

[0031] The adjusting component further includes a slide groove 64 . The other end of the driving shaft 31 is provided with the slide groove 64 . The rack 6 is slidably connected with the slide groove 64 . The slide groove 64 allows the rack 6 to push the driving shaft 31 to move without affecting the rotation of the driving shaft 31 .

[0032] Among them, the adjustment component also includes an elastic member 32, which is sleeved on the clamping rod 5, one end of the elastic member 32 is fixedly connected to the drive shaft 31, and the other end of the elastic member 32 is fixedly connected to the mounting shell 3. At this time, the elastic member 32 pushes the drive shaft 31 back through its own elasticity, and the reset spring pushes the other clamping rod 5 back, and the gear rotates, thereby performing a secondary inspection on the gear and comparing the inspection data, thereby improving the accuracy of the inspection data of the device.

[0033] Among them, a screw rod 4 is provided on the other side of the operating table 1, the screw rod 4 is threadedly connected to the operating table 1, a clamping rod 5 is slidably connected to one end of the screw rod 4, a torsion spring is fixedly connected between the clamping rod 5 and the screw rod 4, and a handle is provided at the other end of the screw rod 4. The gear is placed between the clamping rods 5. At this time, the screw rod 4 is rotated by manpower to drive the clamping rod 5 on one side to move toward the clamping rod 5 on the other side, and the two clamping rods 5 are in close contact with the gear for fixed clamping.

[0034] Among them, a driving motor 2 is fixedly connected to one side of the operating table 1, and the output shaft of the driving motor 2 is fixedly connected to a threaded rod 21, and the threaded rod 21 is rotationally connected to the operating table 1. At this time, the driving motor 2 drives the threaded rod 21 to rotate through the output shaft to drive the slider 22 to move.

[0035] Among them, a slider 22 is provided on the threaded rod 21, the slider 22 is threadedly connected to the threaded rod 21, and the detector 23 is fixedly connected to the other end of the slider 22. The slider 22 moves the detector 23 to a suitable detection position, and the detector 23 is in close contact with the gear surface for detection.

[0036] Working principle: Place the gear between the clamping rods 5. At this time, the screw rod 4 is rotated by manpower to drive the clamping rod 5 on one side to move toward the clamping rod 5 on the other side. The two clamping rods 5 are in close contact with the gear for fixed clamping. At this time, the driving motor 2 drives the threaded rod 21 to rotate through the output shaft, and the thread drives the slider 22 to move. The slider 22 moves the detector 23 to a suitable detection position. The detector 23 is in close contact with the gear surface for detection. When the detection surface needs to be replaced, the servo motor 62 drives the driving gear 61 to rotate through the output shaft, and the driving gear 61 engages and pushes the rack 6 to move. The rack 6 is limited in its range of motion by the limit groove 63 for linear motion, and the drive shaft 31 moves along the clamping column through the guide groove 33 while rotating. The drive shaft 31 drives the gear to rotate through the clamping rod 5, thereby replacing the detection surface without reinstalling the gear. The fan-shaped structure of the driving gear 61 is intermittently engaged with the rack 6. At this time, the elastic member 32 pushes the drive shaft 31 back through its own elasticity, and the reset spring pushes the other clamping rod 5 back, thereby performing a secondary detection of the gear and comparing the detection data, thereby improving the accuracy of the detection data of the device.

[0037] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A device for measuring the helical angle of a gear, comprising an operating table (1), wherein a detector (23) is movably connected inside the operating table (1), characterized in that: An adjustment component is provided on one side of the operating table (1), and the adjustment component comprises a mounting shell (3), a driving shaft (31), a guide groove (33), a rack (6), a driving gear (61) and a servo motor (62); the mounting shell (3) is fixedly connected to the inner wall of the operating table (1); the driving shaft (31) is slidably connected to the mounting shell (3); the servo motor (62) is fixedly connected to the mounting shell (3); the driving gear (61) is fixedly connected to the output shaft of the servo motor (62); the driving gear (61) is meshedly connected to the rack (6); the rack (6) is slidably connected to the driving shaft (31); a guide groove (33) is provided on the driving shaft (31); a clamping column is fixedly connected to the mounting shell (3); the clamping column is slidably connected to the guide groove (33); the guide groove (33) cooperates with the clamping column to guide the sliding trajectory of the driving shaft (31); one end of the driving shaft (31) is fixedly connected to a clamping rod (5); and the other side of the operating table (1) is movably connected to the clamping rod (5).

2. The gear helix angle measuring device according to claim 1, characterized in that: The adjustment assembly further comprises a limiting groove (63), the interior of the mounting shell (3) is fixedly connected to the limiting groove (63), and the rack (6) is slidably connected to the limiting groove (63).

3. The gear helix angle measuring device according to claim 1, characterized in that: The driving gear (61) is sector-shaped as a whole, and the driving gear (61) is intermittently meshed with the rack (6) through the sector.

4. The gear helix angle measuring device according to claim 1, characterized in that: The adjustment assembly further comprises a slide groove (64), the other end of the driving shaft (31) is provided with the slide groove (64), and the rack (6) is slidably connected to the slide groove (64).

5. The gear helix angle measuring device according to claim 1, characterized in that: The adjustment assembly further comprises an elastic member (32), the elastic member (32) being sleeved on the clamping rod (5), one end of the elastic member (32) being fixedly connected to the driving shaft (31), and the other end of the elastic member (32) being fixedly connected to the mounting shell (3), and the elastic member (32) including but not limited to a spring.

6. The gear helix angle measuring device according to claim 1, characterized in that: A screw rod (4) is provided on the other side of the operating table (1), the screw rod (4) is threadedly connected to the operating table (1), a clamping rod (5) is slidably connected to one end of the screw rod (4), a torsion spring is fixedly connected between the clamping rod (5) and the screw rod (4), and a handle is provided at the other end of the screw rod (4).

7. The gear helix angle measuring device according to claim 1, characterized in that: A drive motor (2) is fixedly connected to one side of the operating table (1); an output shaft of the drive motor (2) is fixedly connected to a threaded rod (21); and the threaded rod (21) is rotatably connected to the operating table (1).

8. The gear helix angle measuring device according to claim 7, characterized in that: The threaded rod (21) is provided with a slider (22), the slider (22) is threadedly connected to the threaded rod (21), and the detector (23) is fixedly connected to the other end of the slider (22).

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