Gear detection device

Abstract

The present invention is applicable to the field of automatic detection technology, and provides a gear detection device, which includes: a workbench, a clamping device for clamping the gear to be measured, a first mounting frame slidingly provided with a measuring table, the measuring table slides relative to the first mounting frame so that the probe of the measuring table enters or exits the tooth groove of the gear to be measured, the first mounting frame is rotatably provided with a camshaft, and a cam member for driving the measuring table to slide back and forth is fixed on the camshaft; a driving gear is rotatably provided on the driving shaft, and a first elastic member is provided between the driving shaft and the driving gear, and the driving gear is used to mesh with the gear to be measured to drive the gear to be measured to rotate; the camshaft and the driving shaft are linked by a transmission gear set, and when the driving gear drives the gear to be measured to rotate one tooth, the cam member drives the measuring table to complete a reciprocating slide. In this way, the problem of missing tooth grooves will not occur. And by using the driving gear to drive the gear to be measured to rotate, gears to be measured with different numbers of teeth can be measured.

Description

Technical Field

[0001] The invention belongs to the technical field of automatic detection, and in particular relates to a gear detection device. Background Art

[0002] Gear radial runout is the maximum displacement of the probe relative to the gear axis when the probe is in contact with the middle of the tooth height in the tooth groove or on the gear tooth within one rotation of the gear. It mainly reflects the radial error component caused by the geometric eccentricity of the base circle in the gear motion error.

[0003] The detection of gear radial runout requires measuring each tooth groove of the gear to be measured. The traditional method is to clamp the gear to be measured with a tip. After measuring one tooth groove, the probe withdraws from the tooth groove and manually rotates the gear to align the next tooth groove with the probe. However, the manual rotation of the gear to be measured is prone to excessive rotation of the gear to be measured, resulting in the omission of some tooth grooves. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a gear detection device, which aims to solve the problem that when manually rotating the gear to align the tooth groove with the probe, the gear to be measured is easily rotated too much, resulting in missing some tooth grooves.

[0005] The embodiment of the present application is implemented as follows: a gear detection device, the gear detection device comprising:

[0006] Workbench;

[0007] A clamping device, arranged on the workbench, comprising two clamps rotatable relative to the workbench, the two clamps being used to clamp the gear to be measured;

[0008] A measuring assembly is arranged on one side of the clamping device, the measuring assembly comprises a first mounting frame, the first mounting frame is slidably provided with a measuring table, the measuring table slides relative to the first mounting frame so that the probe of the measuring table enters or exits the tooth groove of the gear to be measured, the first mounting frame is rotatably provided with a cam shaft, and the cam shaft is fixed with a cam member for driving the measuring table to slide back and forth;

[0009] A driving assembly is arranged on the other side of the clamping device, the driving assembly includes a second mounting frame, a driving shaft is rotatably provided on the second mounting frame, a driving gear is rotatably provided on the driving shaft, the driving shaft and the driving gear are connected by a first elastic member, and the driving gear is used to mesh with the gear to be measured to drive the gear to be measured to rotate;

[0010] Among them, the camshaft and the drive shaft are linked by a transmission gear set, and the transmission gear set makes the transmission ratio between the camshaft and the drive shaft meet that when the driving gear drives the gear to be measured to rotate one tooth, the cam member drives the measuring table to complete a reciprocating sliding, and the workbench is provided with a power device for driving the gears in the transmission gear set to rotate.

[0011] In a preferred embodiment of the present application, the measuring assembly also includes a slide seat slidably mounted on the first mounting frame, the measuring table is fixedly mounted on the slide seat, the slide seat is connected to a pin for abutting against the outer peripheral surface of the cam member, the outer peripheral surface of the cam member is a cylindrical surface, and a groove is provided on the cylindrical surface, when the pin falls into the groove, the slide seat slides relative to the first mounting frame to drive the probe of the measuring table to be inserted into the tooth groove of the gear to be measured.

[0012] In a preferred embodiment of the present application, the number of the groove is one, and the transmission ratio between the camshaft and the drive shaft is equal to the number of teeth of the drive gear.

[0013] In a preferred embodiment of the present application, a slide groove is provided on the outer periphery of the driving shaft, the driving gear is provided with a sliding portion located in the slide groove, and both ends of the slide groove have end surfaces for abutting against the sliding portion to limit the sliding of the sliding portion.

[0014] In a preferred embodiment of the present application, one of the second mounting frame and the driving gear is provided with a first friction portion, and the other is provided with a second friction portion for frictionally cooperating with the first friction portion, the number of the second friction portions is equal to the number of teeth of the driving gear, and a plurality of the second friction portions are arranged circumferentially around the driving shaft at intervals.

[0015] In a preferred embodiment of the present application, the driving gear includes a first half gear and a second half gear, the teeth of the first half gear and the second half gear are half teeth on a single side tooth surface respectively, the first half gear and the second half gear are coaxially installed to cooperate with each other to form the full-tooth driving gear, the first half gear is connected to the driving shaft through the first elastic member, the second half gear is rotatably arranged on the first half gear, a second elastic member is arranged between the first half gear and the second half gear, and the second elastic member is used to drive the half teeth of the first half gear and the half teeth of the second half gear to respectively abut on both sides of the teeth of the gear to be measured.

[0016] In a preferred embodiment of the present application, a vertical plate is provided on the vertical table surface of the workbench, the clamping device includes a fixed frame fixed to the vertical plate, and a lifting frame provided on the vertical plate for lifting and lowering, the two chucks are rotatably provided on the fixed frame and the lifting frame respectively, a nut member is provided on the lifting frame, a screw cooperating with the nut member is rotatably provided on the vertical plate, and a first motor for driving the screw to rotate is provided on the vertical plate.

[0017] In a preferred embodiment of the present application, the workbench is provided with a first slide rail and a second slide rail perpendicular to each other, the first mounting frame and the second mounting frame are slidably arranged on the first slide rail, the second slide rail is slidably arranged with a third mounting frame, the third mounting frame is rotatably arranged with an adjusting shaft, the transmission gear set includes a first gear and a second gear arranged on the adjusting shaft, the first mounting frame is rotatably provided with a third gear meshing with the first gear, the second mounting frame is rotatably provided with a fourth gear meshing with the second gear, and the third gear and the fourth gear are respectively used to transmit power to the camshaft and the drive shaft.

[0018] In a preferred embodiment of the present application, the third gear is fixedly arranged on the camshaft, and the transmission gear group also includes a worm, a worm wheel, a first bevel gear, and a second bevel gear. The worm is coaxially fixed to the fourth gear, the worm wheel is rotatably arranged on the second mounting frame and meshes with the worm, the first bevel gear is coaxially fixed to the worm wheel, and the second bevel gear is fixed to the drive shaft and meshes with the first bevel gear.

[0019] In a preferred embodiment of the present application, the power device includes a second motor fixedly mounted on the third mounting frame, and the second motor is drivingly connected to the adjusting shaft.

[0020] The embodiment of the present application provides a gear detection device, which drives the gears in the transmission gear set to rotate through a power device, and then drives the driving gear and the cam to rotate and cooperate, so as to realize the rotation of the gear to be tested and the measurement of the tooth groove, so as to complete the automatic detection of the radial runout of the gear to be tested, and liberate manpower. In addition, the camshaft and the driving shaft are linked through the transmission gear set. When the driving gear drives the gear to be tested to rotate one tooth, the cam member will drive the measuring table to complete the measurement of one tooth groove, so that the problem of missing the tooth groove will not occur. In addition, the angles required for the gears to be tested with different numbers of teeth to rotate one tooth are different, and the present application adopts the method of meshing the driving gear with the gear to be tested, and drives the gear to be tested to rotate through the driving gear. In this way, it is only necessary to control the driving gear to rotate one tooth. No matter how many teeth the gear to be tested has, it will only rotate one tooth, so that the device of the present application can be applied to the gears to be tested with different numbers of teeth. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of a gear detection device according to an embodiment of the present application;

[0022] Figure 2 A front view of a gear detection device according to an embodiment of the present application;

[0023] Figure 3 A top view of a gear detection device according to an embodiment of the present application;

[0024] Figure 4 for Figure 1 A schematic structural diagram of a first mounting frame in an embodiment;

[0025] Figure 5 for Figure 1 An exploded view of the drive shaft and the drive gear in the embodiment;

[0026] Figure 6 for Figure 1 A schematic diagram of the structure of the workbench and the clamping device in the embodiment;

[0027] Figure 7 for Figure 2 Partial view at point A in the middle.

[0028] In the figure:

[0029] 10. Gear to be tested;

[0030] 100, workbench; 110, first slide rail; 120, second slide rail; 130, vertical board;

[0031] 200, clamping device; 210, chuck; 220, fixing frame; 230, lifting frame; 231, nut member; 240, lead screw;

[0032] 300, measuring assembly; 310, first mounting frame; 320, measuring table; 321, measuring head; 330, cam shaft; 340, cam member; 341, groove; 350, slide seat; 351, ejector pin; 360, third elastic member; 370, limit screw;

[0033] 400, driving assembly; 410, second mounting frame; 411, second friction part; 420, driving shaft; 421, slide groove; 430, driving gear; 431, first half gear; 432, second half gear; 433, sliding part; 434, first friction part; 440, first elastic member;

[0034] 510, first gear; 520, second gear; 530, third gear; 540, fourth gear; 550, worm; 560, worm wheel; 570, first bevel gear; 580, second bevel gear;

[0035] 610, third mounting frame; 620, second motor; 630, adjusting shaft. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0037] The specific implementation of the present application is described in detail below in conjunction with specific embodiments.

[0038] like Figure 1 , which is a structural diagram of a gear detection device according to an embodiment of the present application, including: a workbench 100, a clamping device 200, a measuring component 300, a driving component 400 and a transmission gear set.

[0039] like Figure 2 As shown, the clamping device 200 is disposed on the workbench 100 , and the clamping device 200 includes two chucks 210 that can rotate relative to the workbench 100 , and the two chucks 210 are used to clamp the gear 10 to be measured.

[0040] like Figure 2 and Figure 3 As shown, the measuring assembly 300 is arranged on one side of the clamping device 200, and the measuring assembly 300 includes a first mounting frame 310, and the first mounting frame 310 is slidably provided with a measuring gauge 320, and the measuring gauge 320 slides relative to the first mounting frame 310 so that the probe 321 of the measuring gauge 320 enters or exits the tooth groove of the gear 10 to be measured, and the first mounting frame 310 is rotatably provided with a cam shaft 330, and the cam shaft 330 is fixed with a cam member 340 for driving the measuring gauge 320 to slide back and forth. It should be noted that the specific structure and working principle of the measuring gauge 320 are prior art and will not be repeated here. When the present embodiment is specifically used, the measuring gauge 320 is slid to a predetermined position relative to the first mounting frame 310, and the probe 321 abuts against the tooth groove to obtain the reading of the measuring gauge 320, and then the measuring gauge 320 is moved to the position where the probe 321 exits the tooth groove, so as to complete a measurement.

[0041] like Figure 2 and Figure 5 As shown, the driving assembly 400 is arranged on the other side of the clamping device 200, and the driving assembly 400 includes a second mounting frame 410, on which a driving shaft 420 is rotatably provided, and on which a driving gear 430 is rotatably provided. The driving shaft 420 and the driving gear 430 are connected by a first elastic member 440, and the driving gear 430 is used to engage with the gear 10 to be measured to drive the gear 10 to be measured to rotate.

[0042] Among them, the camshaft 330 and the drive shaft 420 are linked by a transmission gear set, and the transmission gear set makes the transmission ratio between the camshaft 330 and the drive shaft 420 satisfy that when the drive gear 430 drives the gear 10 to be measured to rotate one tooth, the cam member 340 drives the measuring table 320 to complete a reciprocating sliding, and the workbench 100 is provided with a power device for driving the gears in the transmission gear set to rotate.

[0043] In this embodiment, the power device drives each gear in the transmission gear set to rotate, and then drives the driving gear 430 and the cam member 340 to rotate and cooperate, so as to realize the rotation of the gear 10 to be measured and the measurement of the tooth groove, so as to complete the automatic detection of the radial runout of the gear 10 to be measured, and liberate manpower. In addition, the camshaft 330 and the driving shaft 420 are linked through the transmission gear set. When the driving gear 430 drives the gear 10 to be measured to rotate one tooth, the cam member 340 will drive the measuring table 320 to complete the measurement of one tooth groove, so that the problem of missing the tooth groove will not occur. In addition, the angle required for the gear 10 to be measured with different numbers of teeth to rotate one tooth is different, and the present application adopts the method of meshing the driving gear 430 with the gear 10 to be measured, and drives the gear 10 to be measured to rotate through the driving gear 430. In this way, it is only necessary to control the driving gear 430 to rotate one tooth. No matter how many teeth the gear 10 to be measured has, it will only rotate one tooth, so that the device of the present application can be applied to the gear 10 to be measured with different numbers of teeth.

[0044] like Figure 4 As shown, in some embodiments of the present application, the measuring assembly 300 also includes a slide seat 350 slidably mounted on the first mounting frame 310, the measuring table 320 is fixedly mounted on the slide seat 350, the slide seat 350 is connected with a pin 351 for abutting against the outer peripheral surface of the cam member 340, the outer peripheral surface of the cam member 340 is a cylindrical surface, and a groove 341 is arranged on the cylindrical surface, when the pin 351 falls into the groove 341, the slide seat 350 slides relative to the first mounting frame 310 to drive the probe 321 of the measuring table 320 to be stuck in the tooth groove of the gear 10 to be measured.

[0045] In this embodiment, the ejector pin 351 abuts against the outer peripheral surface of the cam member 340. When the ejector pin 351 falls into the groove 341, the slide 350 drives the measuring scale 320 to slide to a predetermined position. At this time, the probe 321 enters the tooth groove of the gear 10 to be measured and records the reading of the measuring scale 320. Then, the cam member 340 continues to rotate, and the ejector pin 351 slides out of the groove 341 to drive the slide 350 and the measuring scale 320 to slide until the probe 321 exits the tooth groove of the gear 10 to be measured.

[0046] like Figure 4 As shown, in some embodiments, the first mounting frame 310 is provided with a third elastic member 360 for driving the ejector pin 351 to keep contacting the outer peripheral surface of the cam member 340. The third elastic member 360 may be a spring or a gas strut. A limit screw 370 is provided on the first mounting frame 310. When the ejector pin 351 falls into the groove 341, the tail of the limit screw 370 contacts the slide 350. At this time, the probe 321 will be stuck in the tooth groove of the gear 10 to be measured. In this way, when measuring each tooth groove, the reading is taken when the slide 350 contacts the limit screw 370. The limit screw 370 serves as a measurement reference to ensure the accuracy of the measurement.

[0047] like Figure 3 and Figure 4 As shown, in some embodiments of the present application, the number of the groove 341 is one, and the transmission ratio between the camshaft 330 and the drive shaft 420 is equal to the number of teeth of the drive gear 430. In this embodiment, when the camshaft 330 rotates one circle, the ejector pin 351 enters and exits the groove 341 once, and the measuring table 320 completes one measurement. The drive shaft 420 drives the drive gear 430 to rotate one tooth, and then drives the gear 10 to be measured to rotate one tooth.

[0048] like Figure 2 and Figure 5 As shown, in some embodiments of the present application, a slide groove 421 is provided on the outer periphery of the driving shaft 420, and the driving gear 430 is provided with a sliding portion 433 located in the slide groove 421, and both ends of the slide groove 421 have end surfaces for abutting against the sliding portion 433 to limit the sliding of the sliding portion 433, and the first elastic member 440 drives the sliding portion 433 to abut against one end of the slide groove 421.

[0049] In this embodiment, when the driving gear 430 rotates relative to the driving shaft 420, the sliding portion 433 slides in the sliding groove 421 and along the circumference of the driving shaft 420, which can make the driving gear 430 rotate more smoothly relative to the driving shaft 420. Figure 5 As shown, the slide groove 421 is extended along the circumference of the drive shaft 420, and when the drive gear 430 rotates relative to the drive shaft 420, the left and right end surfaces of the slide groove 421 will limit the sliding portion 433. In this way, the rotation angle of the drive gear 430 relative to the drive shaft 420 can be limited.

[0050] Specifically, in some embodiments, Figure 5As shown, the first elastic member 440 is a torsion spring, one end of which is fixed to the driving shaft 420, and the other end is fixed to the driving gear 430. The torsion spring has a preload after installation, so that the sliding portion 433 of the driving gear 430 abuts against one end of the sliding groove 421, so that the driving gear 430 can stably follow the driving shaft 420 to rotate without encountering too much resistance.

[0051] like Figure 2 and Figure 7 As shown, in some embodiments of the present application, one of the second mounting frame 410 and the driving gear 430 is provided with a first friction portion 434, and the other is provided with a second friction portion 411 for frictionally cooperating with the first friction portion 434, the number of the second friction portions 411 is equal to the number of teeth of the driving gear 430, and a plurality of the second friction portions 411 are arranged circumferentially around the driving shaft 420 at intervals.

[0052] In this embodiment, when the first friction part 434 abuts against the second friction part 411, the driving gear 430 is stationary, the driving shaft 420 continues to rotate, and the sliding part 433 slides relative to the slide groove 421 and compresses the first elastic member 440. At this time, the elastic force provided by the first elastic member 440 is smaller than the friction force. When the sliding part 433 slides to the other end face abutting the slide groove 421, the driving shaft 420 drives the driving gear 430 to rotate together, and the first friction part 434 passes over the second friction part 411. The elastic force of the first elastic member 440 is released and drives the driving gear 430 to rotate relative to the driving shaft 420 to the initial position. Figure 2 , Figure 3 and Figure 7 As shown, in some embodiments of the present application, when the first friction portion 434 and the second friction portion 411 abut against each other, the tooth groove of the gear 10 to be measured is aligned with the probe 321 of the measuring gauge 320, and the abutment between the first friction portion 434 and the second friction portion 411 makes the driving gear 430 stationary, thereby making the gear 10 to be measured also stationary. At this time, the probe 321 of the measuring gauge 320 will not be subjected to lateral thrust when it is inserted into the tooth groove of the gear 10 to be measured, thereby effectively protecting the measuring gauge 320.

[0053] In some implementations, such as Figure 7 As shown, a first friction portion 434 is disposed on the lower end surface of the driving gear 430 , and a second friction portion 411 is disposed on the second sliding frame.

[0054] like Figure 2 and Figure 5As shown, in some embodiments of the present application, the driving gear 430 includes a first half gear 431 and a second half gear 432, and the gear teeth of the first half gear 431 and the second half gear 432 are respectively half teeth of a single-sided tooth surface, and the first half gear 431 and the second half gear 432 are coaxially installed to cooperate with each other to form the driving gear 430 with full teeth, the first half gear 431 is connected to the driving shaft 420 through the first elastic member 440, and the second half gear 432 is rotatably arranged on the first half gear 431, and a second elastic member is arranged between the first half gear 431 and the second half gear 432, and the second elastic member is used to drive the half teeth of the first half gear 431 and the half teeth of the second half gear 432 to respectively abut on both sides of the gear teeth of the gear 10 to be measured.

[0055] In this embodiment, when the first friction portion 434 on the driving gear 430 passes over the second friction portion 411, the first elastic member 440 releases elastic force, driving the driving gear 430 to rotate rapidly relative to the driving shaft 420, and the rotation speed of the driving gear 430 increases rapidly. When the driving gear 430 rotates to the end of the sliding portion 433 abutting the slide groove 421, the rotation speed of the driving gear 430 will suddenly drop. If the driving gear 430 adopts a conventional gear, there is a gap between the gear teeth of the two during the meshing transmission with the gear 10 to be measured. The sudden change in the speed of the driving gear 430 will cause the gear teeth of the two to collide, which is easy to cause damage to the gear teeth of the gear 10 to be measured. However, the present application drives the half teeth of the first half gear 431 and the half teeth of the second half gear 432 to abut on both sides of the gear teeth of the gear 10 to be measured through the second elastic member. In this way, the gear teeth of the driving gear 430 and the gear teeth of the gear to be tested 10 are always kept in close contact. Even if the speed of the driving gear 430 changes suddenly, the gear teeth of the two will not collide seriously, which effectively protects the gear teeth of the gear to be tested 10 and the driving gear 430.

[0056] In some embodiments of the present application, when the first friction part 434 and the second friction part 411 are in contact, the gear 10 to be measured has not rotated to the position where the tooth groove and the probe 321 are opposite. When the probe 321 of the measuring table 320 penetrates into the tooth groove of the gear 10 to be measured, the probe 321 will squeeze and drive the gear 10 to be measured to rotate forward to the position where the tooth groove and the probe 321 are opposite to each other for measurement. At the same time, the forward rotation of the gear 10 to be measured will drive the second half gear 432 to rotate relative to the first half gear 431 to compress the second elastic member. When the probe 321 withdraws from the tooth groove of the gear 10 to be measured, the second elastic member releases the elastic force, and the second half gear 432 drives the gear 10 to be measured to reverse back to the original position. In this way, when the first friction part 434 and the second friction part 411 are in contact, it is not necessary for the tooth groove of the gear 10 to be measured to be exactly aligned with the probe 321, which can reduce the precision of manufacturing and assembly of the device and reduce costs. In some embodiments, the second elastic member can be a torsion spring, a spring, etc.

[0057] like Figure 6 As shown, in some embodiments of the present application, a vertical plate 130 is provided on the vertical table surface of the workbench 100, and the clamping device 200 includes a fixed frame 220 fixed to the vertical plate 130, and a lifting frame 230 lifted and lowered on the vertical plate 130, the two chucks 210 are rotatably arranged on the fixed frame 220 and the lifting frame 230 respectively, a nut member 231 is provided on the lifting frame 230, a screw 240 cooperating with the nut member 231 is rotatably arranged on the vertical plate 130, and a first motor for driving the screw 240 to rotate is provided on the vertical plate 130.

[0058] In this embodiment, the first motor drives the lead screw 240 to rotate, and the lead screw 240 cooperates with the nut member 231 to drive the lifting frame 230 and the chuck 210 located on the lifting frame 230 to lift and lower. When in use, the gear 10 to be measured is placed on the chuck 210 of the fixed frame 220, and the chuck 210 on the lifting frame 230 is lowered to abut against the upper end of the gear 10 to be measured to achieve clamping. It should be noted that after the gear 10 to be measured is clamped, the gear 10 to be measured is fixed to the chuck 210, but the chuck 210 can be rotated relative to the fixed frame 220 and the lifting frame 230, so that the gear 10 to be measured can also rotate freely. Specifically, as Figure 7 As shown, in some embodiments, the two chucks 210 are two oppositely disposed vertices.

[0059] like Figure 1 , Figure 2 and Figure 6 As shown, in some embodiments of the present application, the workbench is provided with a first slide rail 110 and a second slide rail 120 that are perpendicular to each other, the first mounting frame 310 and the second mounting frame 410 are slidably arranged on the first slide rail 110, and a third mounting frame 610 is slidably arranged on the second slide rail 120, and an adjusting shaft 630 is rotatably arranged on the third mounting frame 610, and the transmission gear set includes a first gear 510 and a second gear 520 arranged on the adjusting shaft 630, a third gear 530 meshing with the first gear 510 is rotatably arranged on the first mounting frame 310, and a fourth gear 540 meshing with the second gear 520 is rotatably arranged on the second mounting frame 410, and the third gear 530 and the fourth gear 540 are respectively used to transmit power to the camshaft 330 and the drive shaft 420.

[0060] In this embodiment, when the third mounting frame 610 approaches the first mounting frame 310 and the second mounting frame 410 along the second slide rail 120, the first gear 510 and the second gear 520 on the adjustment shaft 630 will squeeze the third slave gear and the fourth gear 540 on both sides, thereby causing the first mounting frame 310 and the second mounting frame 410 to move to both sides, but the gears of the transmission gear set can maintain transmission connection. In this way, the distance between the first mounting frame 310 and the second mounting frame 410 can be adjusted, so that the device is suitable for measuring gears 10 to be tested with different numbers of teeth.

[0061] like Figure 1 , Figure 2 As shown, in some embodiments of the present application, the third gear 530 is fixedly disposed on the camshaft 330, and the transmission gear set also includes a worm 550, a worm wheel 560, a first bevel gear 570, and a second bevel gear 580. The worm 550 is coaxially fixedly connected to the fourth gear 540, the worm wheel 560 is rotatably disposed on the second mounting frame 410 and meshes with the worm 550, the first bevel gear 570 is coaxially fixedly connected to the worm wheel 560, and the second bevel gear 580 is fixedly disposed on the drive shaft 420 and meshes with the first bevel gear 570.

[0062] In this embodiment, a larger transmission ratio can be obtained by using the worm wheel 560 and the worm 550, thereby reducing the use of gears and simplifying the structure.

[0063] like Figure 1 , Figure 2 As shown, in some embodiments of the present application, the power device includes a second motor 620 fixedly mounted on the third mounting frame 610, and the second motor 620 is transmission-connected to the adjustment shaft 630. Specifically, in some embodiments, the second motor 620 and the adjustment shaft 630 are provided with mutually meshing gears, and transmission is performed through the gears.

[0064] In this embodiment, by driving the adjustment shaft 630 to rotate with the second motor 620, the worm gear 560 and worm 550 transmission between the adjustment shaft 630 and the drive shaft 420 can play a role in deceleration and force increase, thereby reducing the torque requirement for the second motor 620.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A gear detection device, characterized in that: include: Workbench; A clamping device, arranged on the workbench, comprising two clamps rotatable relative to the workbench, the two clamps being used to clamp the gear to be measured; A measuring assembly is arranged on one side of the clamping device, the measuring assembly comprises a first mounting frame, the first mounting frame is slidably provided with a measuring table, the measuring table slides relative to the first mounting frame so that the probe of the measuring table enters or exits the tooth groove of the gear to be measured, the first mounting frame is rotatably provided with a cam shaft, and the cam shaft is fixed with a cam member for driving the measuring table to slide back and forth; A driving assembly is arranged on the other side of the clamping device, the driving assembly includes a second mounting frame, a driving shaft is rotatably provided on the second mounting frame, a driving gear is rotatably provided on the driving shaft, the driving shaft and the driving gear are connected by a first elastic member, and the driving gear is used to mesh with the gear to be measured to drive the gear to be measured to rotate; The camshaft and the drive shaft are linked by a transmission gear set, and the transmission gear set makes the transmission ratio between the camshaft and the drive shaft meet the requirement that when the drive gear drives the gear to be measured to rotate one tooth, the cam member drives the measuring table to complete a reciprocating slide, and the workbench is provided with a power device for driving the gears in the transmission gear set to rotate; The measuring assembly further comprises a slide seat slidably arranged on the first mounting frame, the measuring table is fixedly arranged on the slide seat, the slide seat is connected with a pin for abutting against the outer peripheral surface of the cam member, the outer peripheral surface of the cam member is a cylindrical surface, a groove is arranged on the cylindrical surface, when the pin falls into the groove, the slide seat slides relative to the first mounting frame to drive the measuring head of the measuring table to be clamped into the tooth groove of the gear to be measured; The number of the grooves is one, and the transmission ratio between the camshaft and the drive shaft is equal to the number of teeth of the drive gear; The workbench is provided with a first slide rail and a second slide rail that are perpendicular to each other, the first mounting frame and the second mounting frame are slidably arranged on the first slide rail, the second slide rail is slidably arranged with a third mounting frame, the third mounting frame is rotatably arranged with an adjusting shaft, the transmission gear set includes a first gear and a second gear arranged on the adjusting shaft, the first mounting frame is rotatably provided with a third gear meshing with the first gear, the second mounting frame is rotatably provided with a fourth gear meshing with the second gear, the third gear and the fourth gear are respectively used to transmit power to the camshaft and the drive shaft.

2. A gear detection device according to claim 1, characterized in that: The outer periphery of the driving shaft is provided with a slide groove, the driving gear is provided with a sliding part located in the slide groove, and both ends of the slide groove have end surfaces for abutting against the sliding part to limit the sliding of the sliding part.

3. A gear detection device according to claim 2, characterized in that: One of the second mounting frame and the driving gear is provided with a first friction portion, and the other is provided with a second friction portion for frictionally cooperating with the first friction portion. The number of the second friction portions is equal to the number of teeth of the driving gear, and a plurality of the second friction portions are arranged circumferentially around the driving shaft at intervals.

4. A gear detection device according to claim 3, characterized in that: The driving gear includes a first half gear and a second half gear, the gear teeth of the first half gear and the second half gear are half teeth on a single side of the tooth surface respectively, the first half gear and the second half gear are coaxially installed to cooperate with each other to form the driving gear with full teeth, the first half gear is connected to the driving shaft through the first elastic member, the second half gear is rotatably arranged on the first half gear, a second elastic member is arranged between the first half gear and the second half gear, and the second elastic member is used to drive the half teeth of the first half gear and the half teeth of the second half gear to respectively abut on both sides of the gear teeth of the gear to be measured.

5. A gear detection device according to claim 1, characterized in that: A vertical plate is provided on the vertical table surface of the workbench, the clamping device includes a fixed frame fixed on the vertical plate, and a lifting frame provided on the vertical plate for lifting and lowering, the two chucks are rotatably provided on the fixed frame and the lifting frame respectively, a nut member is provided on the lifting frame, a lead screw cooperating with the nut member is rotatably provided on the vertical plate, and a first motor driving the lead screw to rotate is provided on the vertical plate.

6. A gear detection device according to claim 1, characterized in that: The third gear is fixed on the camshaft, and the transmission gear set also includes a worm, a worm wheel, a first bevel gear, and a second bevel gear. The worm is coaxially fixed to the fourth gear, and the worm wheel is rotatably arranged on the second mounting frame and meshes with the worm. The first bevel gear is coaxially fixed to the worm wheel, and the second bevel gear is fixed to the drive shaft and meshes with the first bevel gear.

7. A gear detection device according to claim 1, characterized in that: The power device comprises a second motor fixedly arranged on the third mounting frame, and the second motor is drivingly connected to the adjusting shaft.

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