A smart dimension measurement device and method based on gear machining

Abstract

This invention relates to the field of dimensional measurement technology, specifically disclosing an intelligent dimensional measurement device and method based on gear machining. The device includes a machining center, with a measuring seat disposed on the right side of the machining center's interior. A gear to be measured is disposed at the top center of the measuring seat, and a clamping assembly for holding the gear to be measured is disposed inside the measuring seat. The measuring device also includes a detection assembly disposed inside the gear to be measured. The detection assembly includes a first motor rotating in the center of the measuring seat. Through the function of the above structure, the measurement position can be adjusted according to the size of the gear tooth groove. For internal gears of different sizes, this avoids the problem of the measurement position contacting the root region of the gear tooth groove due to a small measurement area, thus ensuring the accuracy of the cross-bar distance measurement. It also avoids the problem of the measurement position being unable to enter the tooth groove due to a large measurement area, thus preventing the detection accuracy from being affected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of size measurement, in particular to a size intelligent measurement device and method based on gear machining. BACKGROUND

[0002] Gear refers to a mechanical element with gear continuous meshing transmission of motion and power on the rim, and industrial mother machine includes metal cutting machine tool, which usually adopts metal cutting machine tool to process gears. After processing gears, in order to ensure the quality of the produced gears, the size of the gears needs to be measured to ensure that the quality of the produced gears is good. When measuring the size of the gear, not only the diameters of the addendum circle and the dedendum circle need to be measured, but also the thickness of the gear needs to be measured. The precision detection of the thickness of the gear is an important factor to ensure the smooth meshing of the gear.

[0003] Large-size internal gear is one of the common gears. The thickness measurement of the internal gear faces unique challenges due to its special structure, and cross-bar distance measurement is the most practical and reliable solution. For example, the "internal tooth cross distance measuring device" with the publication number "CN119289830A" aligns the probe with the tooth groove of the inner ring of the internal gear ring. The slider on the linear slide rail on this side drives the support column and the probe to approach the internal gear ring, so that the end of the probe contacts the middle part of the tooth groove of the internal gear ring, thereby measuring the internal tooth cross distance of the internal gear ring.

[0004] However, in the actual cross-bar distance measurement process, it is necessary to ensure that the measuring rod can smoothly enter the tooth groove of the gear, and it is necessary to ensure that the measuring rod cannot touch the area of the tooth groove root of the internal gear. Therefore, when measuring the cross-bar distance of gears with different thicknesses, measuring rods with different diameters need to be used to ensure the accuracy of the measurement. The existing measuring rod cannot be adaptively adjusted according to the thickness, and if a disassembly and replacement method is used, it will greatly affect the efficiency of the measurement. The measuring rod cannot be adaptively adjusted according to the thickness, which will result in the inability to cope with gears of different sizes, thereby affecting the measurement accuracy of the gear. SUMMARY

[0005] The purpose of the present application is to provide a size intelligent measurement device based on gear machining, which can adjust the measurement position according to the size of the tooth groove. For internal gears of different sizes, it can avoid the situation that the measurement position will touch the area of the tooth groove root of the internal gear due to the small size of the part used for measurement, thereby avoiding affecting the accuracy of the cross-bar distance measurement. It can also avoid the situation that the measurement position cannot enter the inside of the tooth groove due to the large size of the part used for measurement, thereby avoiding affecting the detection accuracy, so as to solve the problems raised in the background technology.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a size intelligent measuring device based on gear machining, comprising a machining center, a measuring seat is arranged at the right side of the inside of the machining center, a to-be-measured gear is arranged at the middle top of the measuring seat, a clamping assembly for clamping the to-be-measured gear is arranged in the inside of the measuring seat, and the measuring device further comprises:

[0007] A detection assembly is arranged in the inside of the to-be-measured gear, the detection assembly comprises a first motor rotating in the middle of the inside of the measuring seat, the output shaft of the first motor is fixed with a rotating seat, the two sides of the rotating seat are both arranged with a measuring tube, the inside of the measuring tube is slidably provided with a secondary tube, the front end and the rear end of the secondary tube are both slidably provided with a sliding frame, the outer wall of the sliding frame is fixedly connected with a close ball, and the end of the secondary tube is arranged with a distance sensor;

[0008] The detection assembly is arranged in the inside of the to-be-measured gear, the extrusion assembly is used for controlling the sliding frame to move in the front-rear direction, the extrusion assembly comprises a sliding rod slidably arranged in the inside of the secondary tube, the end of the sliding rod extends out of the secondary tube, the inside of the sliding rod is slidably provided with an extrusion frame, and the front end and the rear end side of the extrusion frame close to the extrusion frame are both arranged to be inclined.

[0009] Preferably, the outer wall of the sliding rod is fixedly connected with a first rack, the extrusion assembly further comprises a vertical rod fixedly arranged in the inside of the secondary tube, the outer wall of the vertical rod is rotatably connected with a first gear, the first rack is engaged with the first gear, the top of the vertical rod is rotatably connected with a second gear, the front side of the extrusion frame is fixedly connected with a second rack, the second rack is engaged with the second gear, a bracket is fixedly arranged in the inside of the secondary tube, the outer wall of the sliding rod is slidably connected with the bracket, the outer side of the bracket is fixedly connected with the inner wall of the secondary tube, a spring is fixedly connected between the bracket and the sliding rod, a third motor is fixedly arranged in the inside of the measuring tube, the output shaft of the third motor is fixed with a lead screw, and the output shaft of the lead screw is threadedly connected with the secondary tube.

[0010] Preferably, the size of the second gear is greater than the size of the first rack.

[0011] Preferably, the top of the vertical rod is located in the inside of the second gear, the top of the vertical rod is fixedly connected with a limiting block, the inside of the second gear is fixedly connected with a ratchet, a clamping rod is rotatably arranged at the ring side of the limiting block, a spring sheet is fixedly connected between the clamping rod and the limiting block, and a connecting rod is fixedly connected between the second gear and the first gear.

[0012] Preferably, the inside of the limiting block is fixedly connected with a first electromagnetic block, and the clamping rod is made of iron material.

[0013] Preferably, the clamping assembly comprises a second motor fixedly connected at the middle position of the bottom of the measuring seat, the output shaft of the second motor is fixed with a main bevel gear, the periphery of the main bevel gear is engaged with a secondary bevel gear, the outer wall of the secondary bevel gear is fixed with a screw rod, the screw rod is rotatably connected with the measuring seat, the outer wall of the screw rod is threadedly connected with a clamping frame, and the outer wall of the clamping frame is slidably connected with the measuring seat.

[0014] Preferably, the inner side of the gear to be measured is provided with a cleaning assembly, the cleaning assembly comprises a square tube fixed inside the rotating seat, the front and rear ends of the square tube are slidably provided with a round tube, the end of the round tube away from the square tube is fixedly connected with a frame, the side of the frame close to the gear to be measured is fixedly provided with soft brush, and the cleaning assembly further comprises an electric telescopic rod fixedly connected between the rotating seat and the frame.

[0015] Preferably, a rotary joint is mounted on the top of the rotating seat, an air inlet pipe is fixed on the side of the rotary joint, and a small pipe is fixedly connected between the square tube and the rotary joint.

[0016] Preferably, an iron plate is movably arranged in the frame, a bent frame is fixed on the top of the iron plate, a limiting plate is fixed on the end of the bent frame away from the iron plate, and a second electromagnet is fixed on the top of the frame.

[0017] A size intelligent measurement method for gear machining comprises the following steps:

[0018] S1, clamping, the gear to be measured is placed in the middle position of the top of the measuring seat, and is clamped by the clamping assembly;

[0019] S2, measurement, the gear to be measured is measured by the detection assembly.

[0020] Compared with the prior art, the beneficial effects of the present application are:

[0021] 1. By the cooperation of the detection assembly and the extrusion assembly, the position of measurement can be adjusted according to the size of the gear slot, the problem that the measurement position contacts the root area of the gear slot due to the small size of the part used for measurement can be avoided for different sizes of the internal gear, thereby ensuring the accuracy of the cross-bar distance measurement, and the problem that the measurement position cannot enter the inside of the gear slot due to the large size of the part used for measurement can also be avoided, thereby avoiding the influence on the detection accuracy;

[0022] 2. By the action of the ratchet on the clamping rod, the distance between the two abutting balls can be kept at a fixed value when a single gear to be measured is detected, thereby preventing the sliding rod from moving when each gear slot is detected, preventing the spring from being stretched and contracted at a high frequency to cause spring fatigue and affect the spring force, affecting the service life of the device, and affecting the radius of the dedendum circle in the initial state of the spring not being compressed, the length formed by the auxiliary pipe and the sliding rod, thereby affecting the accuracy of the detection of the addendum circle and the dedendum circle diameters;

[0023] 3. The soft brush is used to clean the gear to be measured, and air is introduced into the inside of the air inlet pipe from the outside during the cleaning process, so that the air enters the inside of the rotary joint and the small pipe, then enters the inside of the square tube, and then enters the inside of the frame from the round tube, and then is sprayed out from the air injection hole of the frame, so that the air is blown and the soft brush is cleaned at the same time, the cleaning effect of the debris and dust is improved, and the detection accuracy is not affected by the iron filings.

[0024] 4. The iron plate can separate the interior of the frame, the bottom of the iron plate corresponds to the height of the gear to be measured, and the air is blocked to be sprayed from the air jet hole below the iron plate, so that the air is concentrated and sprayed to the gear to be measured, improving the cleaning effect of the gear to be measured, and further avoiding the influence of impurities on the detection accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the specific embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0026] Figure 1 It is a schematic view of the overall structure of the present application;

[0027] Figure 2 It is a schematic view of the partial structure of the measuring seat of the present application;

[0028] Figure 3 It is a schematic view of the top structure of the measuring seat of the present application;

[0029] Figure 4 It is a schematic view of the half-section structure of the measuring seat of the present application;

[0030] Figure 5 It is an enlarged view of A of the present application; Figure 4

[0031] Figure 6 It is a schematic view of the half-section structure of the measuring seat of the present application;

[0032] Figure 7 It is a schematic view of the partial structure of the auxiliary pipe of the present application;

[0033] Figure 8 It is a schematic view of the partial top section structure of the auxiliary pipe of the present application;

[0034] Figure 9 It is a schematic view of the partial structure of the slide of the present application;

[0035] Figure 10 It is a schematic view of the partial structure of the vertical rod of the present application;

[0036] Figure 11 It is a schematic view of the partial structure of the limiting block of the present application;

[0037] Figure 12 It is a schematic view of the side section structure of the rotating seat of the present application;

[0038] ​Figure 13 A schematic view of a cross-sectional structure of the framework of the present application.

[0039] Explanation of reference signs:

[0040] 1, machining center; 2, measuring seat; 3, gear to be measured; 4, detection assembly; 41, first motor; 42, rotating seat; 43, measuring tube; 44, auxiliary tube; 45, sliding frame; 46, fitting ball; 47, third motor; 48, lead screw; 49, distance sensor; 5, extrusion assembly; 51, sliding rod; 52, extrusion frame; 53, first rack; 54, first gear; 55, second gear; 56, second rack; 57, bracket; 58, spring; 59, limiting block; 510, ratchet; 511, clamping rod; 512, elastic sheet; 513, first electromagnetic block; 514, connecting rod; 515, vertical rod; 6, clamping assembly; 61, second motor; 62, main bevel gear; 63, auxiliary bevel gear; 64, clamping frame; 65, screw rod; 7, cleaning assembly; 71, square tube; 72, round tube; 73, frame; 74, soft brush; 75, electric telescopic rod; 76, rotary joint; 77, air inlet pipe; 78, iron plate; 79, bending frame; 710, limiting plate; 711, second electromagnet; 712, small tube. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0042] Embodiment one: please refer to Figures 1 to 11 The present application provides a technical solution: a size intelligent measuring device based on gear machining, comprising a machining center 1, a measuring seat 2 is arranged at the right side of the inside of the machining center 1, a gear to be measured 3 is arranged at the middle top of the measuring seat 2, a clamping assembly 6 is arranged in the inside of the measuring seat 2 for clamping the gear to be measured 3, a cutting assembly for gear machining production is arranged at the left part of the machining center 1, gear cutting machining is a mature prior art, and will not be described in detail, the gear to be measured 3 after machining is placed on the top middle position of the measuring seat 2 through the clamping arm arranged in the inside of the machining center 1, and the clamping and transportation technology of the clamping arm is a mature prior art, and will not be described in detail.

[0043] The clamping assembly 6 comprises a second motor 61 fixedly connected to the middle of the bottom of the measuring seat 2, the output shaft of the second motor 61 is fixed with a main bevel gear 62, the periphery of the main bevel gear 62 is engaged with a plurality of secondary bevel gears 63, the outer wall of the secondary bevel gear 63 is fixed with a screw rod 65, the screw rod 65 is rotatably connected with the measuring seat 2, the outer wall of the screw rod 65 is threadedly connected with a clamping frame 64, and the outer wall of the clamping frame 64 is slidably connected with the measuring seat 2.

[0044] When the measured gear 3 needs to be clamped, the output shaft of the second motor 61 is rotated to rotate the main bevel gear 62, thereby synchronously rotating the plurality of secondary bevel gears 63, and synchronously rotating the plurality of screw rods 65, so that the plurality of clamping frames 64 synchronously move to clamp the measured gear 3. Since the plurality of clamping frames 64 synchronously move, the measured gear 3 can be kept at the center of the measuring seat 2 after being clamped, so that the axis of the measured gear 3 is consistent with the axis of the second motor 61.

[0045] The measuring device further comprises a detection assembly 4 arranged on the inner side of the measured gear 3, the detection assembly 4 comprises a first motor 41 rotatably arranged in the middle of the measuring seat 2, the first motor 41 is a servo motor, the output shaft of the first motor 41 is fixed with a rotating seat 42, the two sides of the rotating seat 42 are both provided with a measuring tube 43, the inside of the measuring tube 43 slidably has a secondary tube 44, the front and rear ends of the secondary tube 44 slidably have a sliding frame 45, the outer wall of the sliding frame 45 is fixedly connected with a close ball 46, the end of the secondary tube 44 is provided with a distance sensor 49, the measuring device further comprises a pressing assembly 5 arranged in the inside of the secondary tube 44, the pressing assembly 5 is used for controlling the sliding frame 45 to move in the front and rear directions, the pressing assembly 5 comprises a sliding rod 51 slidably arranged in the inside of the secondary tube 44, the end of the sliding rod 51 extends out of the secondary tube 44, the inside of the sliding rod 51 slidably has a pressing frame 52, the front and rear end sides of the pressing frame 52 close to the pressing frame 52 are both obliquely arranged, the outer wall of the sliding rod 51 is fixedly connected with a first rack 53, the pressing assembly 5 further comprises a vertical rod 515 fixedly arranged in the inside of the secondary tube 44, the outer wall of the vertical rod 515 is rotatably connected with a first gear 54, the first rack 53 is engaged with the first gear 54, the top of the vertical rod 515 is rotatably connected with a second gear 55, the front side of the pressing frame 52 is fixedly connected with a second rack 56, the second rack 56 is engaged with the second gear 55, a bracket 57 is fixedly arranged in the inside of the secondary tube 44, the outer wall of the sliding rod 51 is slidably connected with the bracket 57, the outer side of the bracket 57 is fixedly connected with the inner wall of the secondary tube 44, a spring 58 is fixedly connected between the bracket 57 and the sliding rod 51, a third motor 47 is fixedly arranged in the inside of the measuring tube 43, the output shaft of the third motor 47 is fixed with a lead screw 48, the output shaft of the lead screw 48 is threadedly connected with the secondary tube 44, and a connecting rod 514 is fixedly connected between the second gear 55 and the first gear 54.

[0046] By adopting the above technical scheme, when detection is needed, the output shaft of the first motor 41 is rotated, the rotating seat 42 is rotated with the measuring tube 43, and the auxiliary tube 44 is aligned with the inside of one of the tooth grooves.

[0047] Then, the output shaft of the third motor 47 is rotated with the screw rod 48, the auxiliary tube 44 is moved to the direction close to the tooth groove of the gear to be detected 3, at this time, the slide rod 51 is moved to the inside of the tooth groove, the end of the slide rod 51 is limited by the root of the inside of the tooth groove, the relative movement between the slide rod 51 and the auxiliary tube 44 is generated, the relative movement between the first rack 53 and the first gear 54 is generated, at this time, under the meshing of the first rack 53 and the first gear 54, the first gear 54 is rotated, under the action of the connecting rod 514, the second gear 55 is rotated, and at this time, the angular velocity of the rotation between the second gear 55 and the first gear 54 is the same.

[0048] It should be noted that under the elastic force of the spring 58 itself, the slide rod 51 is extended from the auxiliary tube 44 in the initial state, and the length of the extension is less than the depth of the tooth groove, so that when the end of the slide rod 51 contacts the root of the inside of the tooth groove, it is ensured that the fitting ball 46 can smoothly enter the inside of the tooth groove.

[0049] When the second gear 55 is rotated, under the meshing of the second rack 56 and the second gear 55, the second rack 56 is moved to the direction of the pressing frame 52, the pressing frame 52 is moved to the direction close to the slide frame 45, under the action that the front and rear end sides of the pressing frame 52 are inclinedly arranged close to the pressing frame 52, the slide frame 45 is moved to the front and rear directions with the fitting ball 46, so that the two fitting balls 46 are cooperated to tightly fit the inside of the tooth groove, and the two fitting balls 46 are cooperated to simulate a single measuring rod to detect the span distance.

[0050] It should be noted that when the width of the tooth groove is large, the relative distance between the slide rod 51 and the auxiliary tube 44 is large, so that the fitting ball 46 can move a larger distance, and the distance between the two fitting balls 46 is large when the width of the tooth groove is small, the relative distance between the slide rod 51 and the auxiliary tube 44 is small, and the distance between the two is small.

[0051] In this way, the position of measurement can be adjusted according to the size of the tooth groove, and for different sizes of the inner gear, the problem that the measurement position contacts the root area of the inner gear tooth groove due to the small size of the part used for measurement can be avoided, so that the accuracy of the span distance measurement is ensured, and the problem that the measurement position cannot enter the inside of the tooth groove due to the large size of the part used for measurement can be avoided, and the detection accuracy is not affected.

[0052] The axis of the gear to be measured 3 is consistent with the axis of the first motor 41, the axis of the first motor 41 is consistent with the axis of the rotating seat 42, and the distance sensor 49 can adopt an infrared distance measuring mode, which is a mature prior art and will not be described in detail. When the two fitting balls 46 are tightly fitted with the inside of the tooth groove, the distance between the end of the sub-tube 44 and the inside of the end of the measuring tube 43 is measured by the distance sensor 49. Half of the span value is the distance between the end of the sub-tube 44 and the inside of the end of the measuring tube 43, the distance between the end of the sub-tube 44 and the fitting ball 46, and the sum of the distance between the inside of the end of the measuring tube 43 and the axis of the rotating seat 42.

[0053] By rotating the output shaft of the first motor 41, different tooth grooves can be measured.

[0054] The device can also measure the diameters of the addendum circle and the dedendum circle. When measuring the dedendum circle, the output shaft of the third motor 47 is rotated, so that the end of the sliding rod 51 can just contact the root of the tooth groove, and the radius of the dedendum circle can be calculated. The radius of the dedendum circle is the sum of the length formed by the sub-tube 44 and the sliding rod 51 in the initial state when the spring 58 is not compressed, the distance between the end of the sub-tube 44 and the inside of the end of the measuring tube 43, and the distance between the inside of the end of the measuring tube 43 and the axis of the rotating seat 42. The diameter of the dedendum circle is twice the radius of the dedendum circle.

[0055] Similarly, when measuring the diameter of the addendum circle, the output shaft of the first motor 41 is rotated to align the sliding rod 51 with the position of the addendum, and the end of the sliding rod 51 is fitted with the position of the addendum, so that the size of the addendum circle can be calculated. In this way, the dimensions of the gear to be measured 3 can be measured comprehensively to determine whether the gear to be measured 3 is qualified.

[0056] It should be noted that the end of the sliding rod 51 is provided with a contact sensor. When measuring the diameters of the addendum circle and the dedendum circle, the contact sensor transmits a signal to the external controller when the sliding rod 51 contacts the addendum or the root of the tooth groove, so that the measurement is performed.

[0057] One of the measuring tubes 43 is fixed with the rotating seat 42, and the other measuring tube 43 is rotated with the rotating seat 42. A motor is fixed inside the rotating seat 42. When the output shaft of the motor rotates, the rotating tube 43 can be controlled to rotate. When the side span of the odd-tooth gear needs to be measured, the output shaft of the motor can be rotated to control the slight rotation of the measuring tube 43, the sub-tube 44, the sliding carriage 45, and the fitting ball 46. The fitting ball 46 can enter the tooth groove beside the symmetrical position on the other side, so that not only the even-tooth gear can be detected, but also the odd-tooth gear can be detected.

[0058] The size of the second gear 55 is greater than the size of the first rack 53.

[0059] By adopting the technical scheme, the design ensures that when the slide rod 51 is limited and moves, the second rack 56 can move the extrusion frame 52 by a larger distance, so that the two balls 46 can move by a larger distance when the slide rod 51 moves by a smaller distance.

[0060] The top of the vertical rod 515 is located inside the second gear 55, the top of the vertical rod 515 is fixed with a limiting block 59, the inner side of the second gear 55 is fixedly connected with a ratchet 510, the limiting block 59 is rotatably provided with a clamping rod 511 on the ring side, the clamping rod 511 is fixedly connected with an elastic sheet 512 between the limiting block 59, the elastic sheet 512 has an elastic force, so as to ensure that the clamping rod 511 is close to the ratchet 510, the inner side of the limiting block 59 is fixedly connected with a first electromagnetic block 513, and the clamping rod 511 is made of iron material.

[0061] By adopting the technical scheme, when the slide rod 51 is limited by the first tooth groove and moves with the first rack 53, the first gear 54 and the second gear 55 move in the counterclockwise direction, at this time, the clamping rod 511 can rotate along the inclined surface of the ratchet 510, so as to ensure that the first gear 54 and the second gear 55 can rotate smoothly, when the slide rod 51 is away from the tooth groove at this time, the first gear 54 and the second gear 55 want to rotate to the clockwise direction to reset, at this time, the clamping rod 511 is limited by the non-inclined position of the ratchet 510, so as to ensure that the first gear 54 and the second gear 55 cannot rotate to reset, at this time, the second rack 56 and the extrusion frame 52 keep extruding the slide frame 45, so as to ensure that the distance between the two balls 46 keeps a fixed value.

[0062] The design can keep the distance between the two balls 46 fixed when a single to-be-detected gear 3 is detected, so as to prevent the slide rod 51 from moving when each tooth groove is detected, so as to prevent the spring 58 from being stretched and contracted frequently, causing the spring 58 to be fatigued and affecting the elastic force, affecting the service life of the device, and affecting the radius of the dedendum circle, that is, the length of the combination of the auxiliary pipe 44 and the slide rod 51 in the initial state when the spring 58 is not compressed, thereby affecting the detection accuracy of the dedendum circle and the addendum circle.

[0063] When another to-be-detected gear 3 needs to be measured, the first electromagnetic block 513 is powered on, the first electromagnetic block 513 adsorbs the clamping rod 511, so that the clamping rod 511 is away from the ratchet 510, and the second rack 56 and the extrusion frame 52 are reset. It should be noted that the two slide frames 45 are fixedly connected with magnetic blocks close to each other, at this time, under the magnetic force of the magnetic blocks, the two slide frames 45 are close to each other, so that the two balls 46 are reset.

[0064] Embodiment two: The technical scheme of the embodiment is different from that of embodiment one, in which Figures 1 to 5 and Figures 12 to 13The inner side of the gear to be measured 3 is provided with a cleaning assembly 7, the cleaning assembly 7 comprises a square tube 71 fixed inside a rotating seat 42, the front and rear ends of the square tube 71 are slidably provided with a circular tube 72, the end of the circular tube 72 away from the square tube 71 is fixedly connected with a frame 73, the circular tube 72 is connected with the frame 73 at a position close to the bottom of the frame 73, the frame 73 is fixedly connected with soft brush 74 on the side close to the gear to be measured 3, the cleaning assembly 7 further comprises an electric telescopic rod 75 fixedly connected between the rotating seat 42 and the frame 73, the top of the rotating seat 42 is provided with a rotary joint 76, the principle and installation mode of the rotary joint 76 are mature prior art, and will not be described in detail, the side of the rotary joint 76 is fixedly connected with an air inlet pipe 77, and the square tube 71 and the rotary joint 76 are fixedly connected with a small pipe 712.

[0065] By adopting the above technical scheme, during cutting machining, there may be iron filings on the surface of the produced gear to be measured 3, in order to avoid the influence of the iron filings on the detection precision, the cleaning assembly 7 is designed.

[0066] The square tube 71 is vertically arranged with the measuring tube 43, before detection, the output shaft of the electric telescopic rod 75 is extended, so that the frame 73 can move with the soft brush 74, at this time, the circular tube 72 slides in the square tube 71, so that the end of the soft brush 74 can reach the root of the gear slot, then the rotating seat 42 is rotated by the first motor 41, so that the soft brush 74 can clean the gear to be measured 3, and in the cleaning process, air is introduced into the inside of the air inlet pipe 77 from the outside, so that the air enters the inside of the rotary joint 76 and the small pipe 712, then enters the inside of the square tube 71, and then enters the inside of the frame 73 from the circular tube 72, and then is sprayed from the air injection hole of the frame 73, so that the soft brush 74 is cleaned while blowing, the cleaning effect of the debris and dust is improved, and the influence of the iron filings on the detection precision is avoided.

[0067] When the rotating seat 42 is rotated by more than ninety degrees by the first motor 41, the cleaning and measurement can be performed at the same time, and the measurement efficiency is improved.

[0068] It should be noted that the top of the measuring seat 2 is annularly arranged with ribs, so as to elevate the gear to be measured 3, so that the falling debris can enter the gap between the ribs and the gear.

[0069] The inside of the frame 73 movably has an iron plate 78, the top of the iron plate 78 is fixedly connected with a bent frame 79, the end of the bent frame 79 away from the iron plate 78 is fixedly connected with a limiting plate 710, the inside of the frame 73 is fixedly connected with a second electromagnet 711 at the top, and the bottom of the iron plate 78 is flush with the bottom of the limiting plate 710.

[0070] By adopting the above technical scheme, when the output shaft of the electric telescopic rod 75 is extended and the end of the soft brush 74 can reach the root of the gear slot, the second electromagnet 711 is powered off, so that the iron plate 78, the bent frame 79 and the limiting plate 710 move downward under the action of gravity of the iron plate 78 until the bottom of the limiting plate 710 is limited by the top of the gear 3 to be measured. At this time, the iron plate 78 separates the inside of the frame 73, the bottom of the iron plate 78 corresponds to the height of the gear 3 to be measured, blocks the air, and makes the air sprayed from the air jet hole below the iron plate 78, so that the air is concentrated and sprayed to the gear 3 to be measured, improves the cleaning effect of the gear 3 to be measured, and further avoids the influence of impurities on the detection accuracy.

[0071] It should be noted that the sprayed air can also clean the impurities on the soft brush 74, so as to avoid the accumulation of too many impurities on the soft brush 74 and affect the cleaning effect.

[0072] A size intelligent measurement method for gear machining, comprising the following steps:

[0073] S1, clamping, when it is needed to clamp the gear to be measured 3, the output shaft of the second motor 61 is rotated to make the main bevel gear 62 rotate, so that the plurality of sub-bevel gears 63 rotate synchronously, and the plurality of screw rods 65 rotate synchronously, so that the plurality of clamping frames 64 move synchronously to clamp the gear to be measured 3. Since the plurality of clamping frames 64 move synchronously, the gear to be measured 3 can be kept at the center position of the measuring seat 2 after being clamped, so that the axis of the gear to be measured 3 is consistent with the axis of the second motor 61;

[0074] S2, measurement, through the output shaft of the first motor 41 rotation, facilitate the rotation of the seat 42 with the burette 43 rotation, so that the sub-pipe 44 aligns the inside of one of the tooth groove, then through the output shaft of the third motor 47 with the lead screw 48 rotation, can make the sub-pipe 44 with the slide rod 51 to the direction of the measured gear 3 tooth groove movement, at this time the slide rod 51 to the tooth groove inside the direction of movement, the end of the slide rod 51 and the limit of the tooth groove inside the root, so that the slide rod 51 and the sub-pipe 44 will produce relative movement, so that the first rack 53 and the first gear 54 between the relative movement, at this time in the first rack 53 and the first gear 54 meshing effect, can make the first gear 54 rotation, in the connecting rod 514 effect, can make the second gear 55 rotation, when the second gear 55 rotation, in the second rack 56 and the second gear 55 meshing effect, can make the second rack 56 to the direction of the extrusion frame 52 movement, can make the extrusion frame 52 to the direction of the slide 45 close to the extrusion frame 52, in the front and rear end side of the extrusion frame 52 and the slide 45 close to the extrusion frame 52 are inclined to set the effect, can make the slide 45 with the fit ball 46 to the front and rear direction of movement, so as to realize two fit ball 46 cooperation close to the inside of the tooth groove, two fit ball 46 cooperation simulation single measuring rod on the span rod distance detection.

[0075] Working principle: when the width of the tooth groove is larger, the relative distance between the slide rod 51 and the sub-pipe 44 is larger, so that the fit ball 46 can move more distance, facilitate the measurement of the distance between the two fit ball 46 is larger, when the width of the tooth groove is smaller, the relative distance between the slide rod 51 and the sub-pipe 44 is smaller, so that the distance between the two is smaller, so as to adjust the position of measurement according to the size of the tooth groove, for different size of the inner gear, can avoid the size of the part used for measurement is smaller, resulting in the position of measurement will contact the tooth groove root area of the inner gear, so as to avoid the influence of span rod distance measurement accuracy, also can avoid the size of the part used for measurement is larger, resulting in the position of measurement can not enter the inside of the tooth groove, avoid the influence of detection accuracy.

[0076] When the slide rod 51 is limited by the first tooth groove and moves with the first rack 53, the first gear 54 and the second gear 55 move in the counterclockwise direction, at this time, the clamping rod 511 can rotate along the inclined surface of the ratchet 510, so as to ensure that the first gear 54 and the second gear 55 can rotate smoothly, when the slide rod 51 moves away from the tooth groove, the first gear 54 and the second gear 55 want to rotate clockwise to reset, at this time, the clamping rod 511 is limited by the non-inclined position of the ratchet 510, so as to ensure that the first gear 54 and the second gear 55 cannot rotate to reset, at this time, the second rack 56 and the extrusion frame 52 keep extruding the slide frame 45, so as to ensure that the distance between the two abutting balls 46 keeps a fixed value, such design can keep the distance between the two abutting balls 46 fixed when detecting the single gear 3, so as to prevent the slide rod 51 from moving when detecting each tooth groove, so as to prevent the spring 58 from being stretched frequently and causing the spring 58 to fatigue and affect the spring force, affect the service life of the device, and affect the radius of the dedendum circle, which is in the initial state of the spring 58 not being compressed, the length of the sub-pipe 44 and the slide rod 51 together, so as to affect the accuracy of the detection of the dedendum circle and the addendum circle.

[0077] By extending the output shaft of the electric telescopic rod 75, the frame 73 can move with the soft brush 74, at this time, the circular pipe 72 slides in the square pipe 71, so that the end of the soft brush 74 can reach the root of the tooth groove, then the first motor 41 rotates with the rotating seat 42, so that the soft brush 74 can clean the measured gear 3, and in the cleaning process, air is introduced into the inside of the air inlet pipe 77 from the outside, so that the air enters the inside of the rotating joint 76 and the small pipe 712, then enters the inside of the square pipe 71, and then enters the inside of the frame 73 from the circular pipe 72, and then is sprayed from the air outlet hole of the frame 73, so that the soft brush 74 can clean while blowing, improving the cleaning effect of the debris and dust.

[0078] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A size intelligent measuring device based on gear machining, comprising a machining center (1), a measuring seat (2) is arranged on the right side of the inside of the machining center (1), a gear to be measured (3) is arranged on the middle top of the measuring seat (2), a clamping assembly (6) for clamping the gear to be measured (3) is arranged in the inside of the measuring seat (2), characterized in that, The measuring device further comprises: The detection assembly (4) is arranged on the inner side of the gear (3) to be measured, and comprises a first motor (41) rotating in the middle of the measuring seat (2) internally, the output shaft of the first motor (41) is fixed with a rotating seat (42), the two sides of the rotating seat (42) are both arranged with a measuring tube (43), the inside of the measuring tube (43) is slidably provided with a secondary pipe (44), the front and rear ends of the secondary pipe (44) are both slidably provided with a sliding frame (45), the outer wall of the sliding frame (45) is fixedly connected with a ball (46), and the end of the secondary pipe (44) is arranged with a distance sensor (49); The extrusion assembly (5) for controlling the forward and backward movement of the sliding frame (45) is arranged in the secondary pipe (44), the extrusion assembly (5) comprises a sliding rod (51) slidably arranged in the secondary pipe (44), the end of the sliding rod (51) extends out of the secondary pipe (44), the inside of the sliding rod (51) is slidably provided with an extrusion frame (52), the front and rear end sides of the extrusion frame (52) are both arranged to be inclined at the position close to the extrusion frame (52), the extrusion assembly (5) further comprises a vertical rod (515) fixed in the secondary pipe (44), the outer wall of the sliding rod (51) is fixedly connected with a first rack (53), the outer wall of the vertical rod (515) is rotatably connected with a first gear (54), the first rack (53) is engaged with the first gear (54), the top of the vertical rod (515) is rotatably connected with a second gear (55), the front side of the extrusion frame (52) is fixedly connected with a second rack (56), the second rack (56) is engaged with the second gear (55), a bracket (57) is fixed in the secondary pipe (44), the outer wall of the sliding rod (51) is slidably connected with the bracket (57), the outer side of the bracket (57) is fixedly connected with the inner wall of the secondary pipe (44), the bracket (57) and the sliding rod (51) are fixedly connected with a spring (58), a third motor (47) is fixed in the inside of the measuring tube (43), the output shaft of the third motor (47) is fixed with a lead screw (48), and the output shaft of the lead screw (48) is threadedly connected with the secondary pipe (44).

2. A size intelligence measuring device based on gear machining according to claim 1, characterized in that: The size of the second gear (55) is greater than that of the first rack (53).

3. A size intelligence measuring device based on gear machining according to claim 2, characterized in that: The top of the vertical rod (515) is located in the inside of the second gear (55), the top of the vertical rod (515) is fixed with a limiting block (59), the inner side of the second gear (55) is fixedly connected with a ratchet (510), the limiting block (59) is rotatably provided with a clamping rod (511) at the ring side, the clamping rod (511) and the limiting block (59) are fixedly connected with a spring sheet (512), and the second gear (55) and the first gear (54) are fixedly connected with a connecting rod (514).

4. A size intelligence measuring device based on gear machining according to claim 3, characterized in that: The inside of the limiting block (59) is fixedly connected with a first electromagnetic block (513), and the clamping rod (511) is made of iron material.

5. The size intelligence measuring device based on gear machining according to claim 1, characterized in that: The clamping assembly (6) comprises a second motor (61) fixedly connected to the middle position of the bottom of the measuring seat (2), the output shaft of the second motor (61) is fixedly connected with a main bevel gear (62), the periphery of the main bevel gear (62) is engaged with a secondary bevel gear (63), the outer wall of the secondary bevel gear (63) is fixedly connected with a screw rod (65), the screw rod (65) is rotatably connected with the measuring seat (2), the outer wall of the screw rod (65) is threadedly connected with a clamping frame (64), and the outer wall of the clamping frame (64) is slidably connected with the measuring seat (2).

6. The size intelligence measuring device based on gear machining according to claim 1, characterized in that: The inner side of the gear to be measured (3) is provided with a cleaning assembly (7), the cleaning assembly (7) comprises a square tube (71) fixedly arranged in the rotating seat (42), square tubes (71) are slidably arranged at the front and rear ends of the square tube (71), the end of the circular tube (72) away from the square tube (71) is fixedly inserted with a frame (73), the side of the frame (73) close to the gear to be measured (3) is fixedly connected with a soft brush (74), and the cleaning assembly (7) further comprises an electric telescopic rod (75) fixedly connected between the rotating seat (42) and the frame (73).

7. A size intelligence measuring device based on gear machining according to claim 6, characterized in that: The top of the rotating seat (42) is provided with a rotary joint (76), the side of the rotary joint (76) is fixedly connected with an air inlet pipe (77), and the square tube (71) and the rotary joint (76) are fixedly connected with a small pipe (712).

8. A size intelligence measuring device based on gear machining according to claim 7, characterized in that: The inside of the frame (73) is movably provided with an iron plate (78), the top of the iron plate (78) is fixedly connected with a bent frame (79), the end of the bent frame (79) away from the iron plate (78) is fixedly connected with a limiting plate (710), and the inside of the frame (73) is fixedly connected with a second electromagnet (711).

9. A size intelligent method of gear machining, characterized by: The method is suitable for the gear machining size intelligent measuring device of any one of claims 1-8, comprising the following steps: S1, clamping, placing the gear to be measured (3) on the top of the measuring seat (2), and clamping by the clamping assembly (6); S2, measuring, measuring the gear to be measured (3) by the detection assembly (4).

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