CN107314731B - Detection tool for detecting center difference of outer star wheel of ball cage and detection method using detection tool - Google Patents
Detection tool for detecting center difference of outer star wheel of ball cage and detection method using detection tool Download PDFInfo
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- CN107314731B CN107314731B CN201710765743.1A CN201710765743A CN107314731B CN 107314731 B CN107314731 B CN 107314731B CN 201710765743 A CN201710765743 A CN 201710765743A CN 107314731 B CN107314731 B CN 107314731B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0025—Measuring of vehicle parts
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- A Measuring Device Byusing Mechanical Method (AREA)
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Abstract
the invention discloses a detection tool for detecting a center difference of an outer star wheel of a ball cage and a detection method using the detection tool, and relates to the field of detection tools; the device comprises a clamping seat and a three-jaw chuck for clamping the external star wheel to be detected; the detection mechanism comprises a detection seat, a detection lever and a dial indicator, wherein the detection lever is rotationally connected to the detection seat, one end of the detection lever is abutted against the inner wall of the outer star wheel, and the dial indicator is abutted against the other end of the detection lever and is fixed on the detection seat; the rotary seat comprises a base and an installation frame rotating around the vertical center of the base; the clamping seat is connected to the mounting frame in a sliding mode along the axial direction of the outer star wheel; the method comprises the following steps: fixing the workpiece; adjusting the workpiece to search for a sphere center; and measuring the center difference between different workpieces and a standard workpiece. The invention provides a detection tool for detecting the center difference of a ball cage outer star wheel and a detection method using the detection tool, which can quickly detect the center difference of the outer star wheel.
Description
Technical Field
the invention relates to a ball cage type universal joint detection device, in particular to a detection tool for detecting a center difference of a ball cage outer star wheel and a detection method using the detection tool.
background
the cage, also known as a constant velocity joint, is an important component in a car driveline.
chinese patent publication No. CN106555824A discloses a rzeppa universal joint, including the outer star wheel of a plurality of outer raceways that have circumference evenly distributed, the inner star wheel of a plurality of inner raceways that have circumference evenly distributed, a plurality of steel balls of transmission power and make a plurality of the centre of sphere of steel ball keeps the holder in a plane, outer star wheel and driven shaft fixed connection.
above-mentioned technical scheme ball cage universal joint has included interior star gear, outer star gear, holder and steel ball, and outer star gear and interior star gear all have a plurality of outer raceways of circumference evenly distributed and are used for cooperating the steel ball. When the ball cage universal joint is assembled, the outer star wheel and the inner star wheel need to be matched, and the inner star wheel and the outer star wheel are depended on to transmit torque, so that the center difference of the inner star wheel and the outer star wheel needs to be ensured in a smaller tolerance range, and the detection of the center difference between the outer star wheels is indispensable. The central difference of the outer star wheel can be divided into a radial central difference and an axial central difference, and when the outer star wheel is machined, the upper die stretches the forming die into a workpiece for machining, so that the radial central deviation of different outer star wheels is eliminated in the machining process, but the depth of the forming die stretching into the workpiece has errors, and the axial central difference of the outer star wheel needs to be detected in the detection process. Therefore, the center difference of the outer star wheel needs to be detected by the detection tool.
Disclosure of Invention
The invention aims to provide a checking fixture for detecting the center difference of an outer star wheel of a ball cage, which can quickly detect the center difference of the outer star wheel.
The technical purpose of the invention is realized by the following technical scheme: the utility model provides a detect poor utensil of examining in ball cage besides-star wheel center, includes: the clamping seat comprises a three-jaw chuck for clamping the external star wheel to be detected;
The detection mechanism comprises a detection seat, a detection lever and a dial indicator, wherein the detection lever is rotationally connected to the detection seat, one end of the detection lever is abutted against the inner wall of the outer star wheel, and the dial indicator is abutted against the other end of the detection lever and is fixed on the detection seat;
the rotary seat comprises a base and an installation frame rotating around the vertical center of the base; the clamping seat is connected to the mounting frame in a sliding mode along the axial direction of the outer star wheel.
By adopting the technical scheme, the outer star wheel of the standard reference workpiece is fixed in the three-jaw chuck on the clamping seat, one end of the detection lever is abutted against the inner wall of the reference workpiece, the mounting frame drives the reference workpiece to axially rotate around the vertical center of the base, and the numerical value of the dial indicator is finally unchanged or slightly changed by changing the position of the clamping seat on the mounting frame in the process, so that the position of the spherical center of the reference workpiece is determined, and the position is set to be a zero value; and fixing the next detected workpiece on the three-jaw chuck, repeating the actions, reading the position of the clamping seat on the mounting frame when the value of the dial indicator is unchanged or slightly changed, and taking the difference value between the position and the position recorded by the reference workpiece as the center difference of the sphere center of the detected workpiece.
the invention is further configured to: the detection mechanism further comprises an axial sliding table and a radial sliding table which are perpendicular to each other, and the detection seat is fixedly connected to the axial sliding table or the radial sliding table.
Through adopting above-mentioned technical scheme, utilize axial slip table and radial slip table, can take and detect the seat and remove along two vertically directions in the horizontal plane, and then can utilize two slip tables to take and detect the lever and stretch out or stretch into the outer star wheel when the change waits to detect the outer star wheel inside to adjust the tip that detects the lever, make it contradict in the inner wall of outer star wheel, thereby when changing, only remove and detect the seat, avoid removing the holder, and then promote the degree of accuracy of test.
The invention is further configured to: the mounting bracket is equipped with central adjustment mechanism, central adjustment mechanism is including rotating the slider that connects in the mounting bracket and be parallel regulation lead screw, wear to establish and threaded connection in the regulation lead screw with outer star gear central axis, the slider slides along outer star gear central axis and connects in the mounting bracket, the holder is fixed in the slider.
through adopting above-mentioned technical scheme, the outer star gear that will wait to detect is fixed to the three-jaw chuck on the back, adjust the lead screw through rotating, just can drive slider and holder and slide along the central axial of outer star gear, the numerical value of amesdial does not change or the micro-change when until through rotating the mounting bracket, thereby just can confirm to wait to detect the deviation along outer star gear central axial direction between the center of outer star gear center and reference work piece, utilize the effect of lead screw, can promote the precision that the holder removed, and make the holder can not take place random removal after lieing in certain position.
the invention is further configured to: the clamping seat further comprises a fine adjustment mechanism which is fixed on the sliding block and connected to the three-jaw chuck, and the fine adjustment mechanism drives the three-jaw chuck to move along the direction perpendicular to the adjusting screw rod.
Through adopting above-mentioned technical scheme, rely on fine-tuning to drive the holder and follow the direction motion that the lead screw was adjusted to the perpendicular to, before the detection, utilize fine-tuning to adjust the centre of sphere of reference work piece to one through the base center and with on the reference work piece central axis is parallel straight line to in the testing process afterwards, only need just can confirm the centre of sphere position of outer star gear through removing the position of holder on the mounting bracket.
The invention is further configured to: the mounting bracket is equipped with the range finding subassembly, the range finding subassembly includes and is parallel scale grating, connects in the grating reading head of slider with outer star gear central axis, grating reading head and the relative setting that slides of scale grating.
By adopting the technical scheme, the position of the slide block on the mounting frame can be detected by utilizing the scale grating and the grating reading head, the position of the reference workpiece is determined as a zero point, the position of the subsequent workpiece to be detected on the mounting frame is the center difference of the workpiece, and the detection precision can be improved by utilizing the grating ruler.
the invention is further configured to: and a tension spring is connected between the detection seat and one end of the detection lever, which is far away from the outer star wheel.
Through adopting above-mentioned technical scheme, utilize the extension spring to play the pulling force effect to the one end that the outer star gear was kept away from to the detection lever, rely on leverage, and the one end that makes the detection lever be close to the outer star gear can keep conflicting in the inner wall of outer star gear, and then plays stable detection effect.
The invention is further configured to: one end of the detection lever, which is far away from the dial indicator, is rotatably connected with a wear-resistant steel ball.
Through adopting above-mentioned technical scheme, rotate the mounting bracket and drive waiting on the holder and wait that the star gear rotates together, can keep the conflict effect with wear-resisting steel ball, avoid rotating the in-process and wait to detect the work piece with the pivoted and produce the interference because of the exterior structure of detecting the lever and influence the detection effect to utilize wear-resisting steel ball to promote the life who detects the lever.
The invention is further configured to: the dial indicator comprises a gauge body fixed on the detection seat, a gauge head connected to the gauge body in a sliding mode, and a pressing spring connected between the gauge head and the gauge body.
Through adopting above-mentioned technical scheme, rely on to support tight spring, can keep gauge outfit and detection lever's conflict effect to when rotating the work piece that waits to detect, can detect the swing of detecting the lever at any time, and then promote the precision that detects.
The invention is further configured to: the base is provided with a dial, and the mounting bracket is provided with a pointer aligned with the dial.
through adopting above-mentioned technical scheme, utilize the effect of pointer and calibrated scale on the mounting bracket, when rotating whole mounting bracket, can observe the pivoted angle, avoid misoperation and lead to rotating too big angle and cause the damage to detection lever or work piece.
The invention also aims to provide a detection method of the detection tool for detecting the center difference of the outer star wheel of the ball cage, which can quickly detect the center difference of the outer star wheel.
the technical purpose of the invention is realized by the following technical scheme: the method comprises the following steps:
Step A: a three-jaw chuck for fixing the standard reference workpiece on the clamping seat;
And B: adjusting the axial sliding table and the radial sliding table, extending the detection lever into the standard reference workpiece, enabling the wear-resistant steel ball to abut against the inner spherical surface of the standard reference workpiece, and simultaneously keeping the head of the dial gauge and one end of the detection lever, which is far away from the wear-resistant steel ball, to abut against each other;
And C: the mounting frame drives the clamping seat to rotate around the vertical center of the base by a certain angle, meanwhile, the numerical value of the dial indicator is observed, if the numerical value is changed greatly, the position of the clamping seat on the mounting frame is changed by rotating the adjusting screw rod, then the mounting frame is continuously rotated, if the numerical value of the dial indicator is unchanged or slightly changed, the swinging is stopped, and the data obtained by the grating reading head is returned to zero as a standard value;
Step D: and C, fixing the next detected workpiece on the three-jaw chuck, and repeating the steps B and C, wherein the value displayed by the final grating reading head is the central difference value of the workpiece and the standard workpiece.
Through adopting above-mentioned technical scheme, the centre of sphere position of each work piece is found to the numerical value that removes the position of holder on the mounting bracket repeatedly and utilize the detection lever to show from the amesdial, when the numerical value of the in-process amesdial of rotation mounting bracket does not have the change or the micro-change, then show that the centre of sphere of work piece is located the central vertical line of base, and because when processing the external star wheel, the position that forming die stretched into in the external star wheel at every turn can have the error, then the centre of sphere of each work piece can have the deviation in the central axis of external star wheel upwards, then utilize the different positions of holder on the mounting bracket to embody this moment, rely on grating reading head then can directly read out this deviation value simultaneously, make whole testing process more convenient, and fast, and can also improve the precision that detects.
In conclusion, the invention has the following beneficial effects: utilize the holder to slide on the mounting bracket, and wait to detect the work piece rotation on the holder by the mounting bracket drive, thereby rely on the detection effect that detects lever and amesdial, can beat according to the numerical value of amesdial and confirm the centre of sphere position of every work piece, and compare every work piece position on the mounting bracket when finding the centre of sphere position, this numerical value is poor then for being detected the center of work piece poor this moment, if the center is poor at the within range that allows, then show that this work piece then is qualified product, otherwise, the product is then unqualified.
Drawings
FIG. 1 is a schematic structural diagram of a workpiece to be inspected according to the present embodiment;
FIG. 2 is a schematic structural view of the present embodiment;
FIG. 3 is a schematic structural diagram of the present embodiment, which is mainly used for embodying the clamping seat and the rotating seat;
FIG. 4 is a schematic cross-sectional view of the present embodiment, mainly used for embodying the base;
FIG. 5 is a schematic structural diagram of the detecting mechanism of the present embodiment;
Fig. 6 is a schematic structural diagram of the distance measuring assembly according to the present embodiment.
Reference numerals: 1. a holder; 11. a three-jaw chuck; 12. a fine adjustment mechanism; 121. a base plate; 122. fixing the bolt; 123. a waist-shaped groove; 2. a detection mechanism; 21. a detection seat; 22. a detection lever; 23. a dial indicator; 231. a watch body; 232. a gauge head; 233. the spring is tightly propped; 3. a rotating base; 31. a base; 32. a mounting frame; 321. rotating the sleeve; 322. installing a panel; 4. an axial sliding table; 5. a radial sliding table; 6. a center adjusting mechanism; 61. adjusting the lead screw; 62. a slider; 63. a lead screw seat; 7. a ranging assembly; 71. a scale grating; 72. a grating reading head; 73. a raster display screen; 8. a tension spring; 9. wear-resistant steel balls; 10. a dial scale; 13. a pointer; 14. an outer star wheel; 15. a spherical raceway; 16. a reference axis; 17. a fixed seat; 18. a slide rail; 19. a rolling bearing; 20. installing a sleeve; 24. mounting blocks; 25. the handle is rotated.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The ball cage outer star wheel is used for forming a ball cage universal joint with the inner star wheel, a retainer and steel balls, a spherical raceway 15 needs to be machined and formed inside the outer star wheel 14 for assembly with the inner star wheel and the steel balls, and a forming die extends into a workpiece for machining by an upper die each time during machining, so that the center deviation of different outer star wheels 14 along the radial direction is eliminated during machining, but the depth of the forming die extending into the workpiece each time is wrong, and the center difference of the outer star wheels 14 along the axial direction needs to be detected during detection. Therefore, the embodiment provides a checking fixture for quickly detecting the center difference of the planetary wheel 14.
The first embodiment is as follows:
A checking fixture for detecting the center difference of a planetary gear of a ball cage is disclosed, and shown in figure 2, comprises a clamping seat 1 for clamping a workpiece to be detected, a rotating seat 3 for driving the clamping seat 1 and the workpiece to be detected to rotate around a reference shaft 16, and a detection mechanism 2 for judging whether the center of a spherical surface inside the workpiece is positioned on the reference shaft 16 line in the rotating process; through the information fed back by the detection mechanism 2, if the workpiece is on the reference axis 16 line of the rotating seat 3, the center of the workpiece is found, and at the moment, whether the center difference of the workpiece meets the qualified standard is determined by comparing the distance between the clamping seat 1 and the reference axis 16 of the rotating seat 3.
Referring to fig. 3, the holder 1 includes a three-jaw chuck 11 for holding a workpiece and having a horizontal center in an axial direction, and a fixing seat 17 for fixing the three-jaw chuck 11; the fixed seat 17 is convex; a fine adjustment mechanism 12 is arranged on the lower surface of the fixed seat 17, and the fine adjustment mechanism 12 comprises a bottom plate 121, the length direction of which is vertical to the central axial direction of the three-jaw chuck 11; two fixing bolts 122 are in threaded connection at the positions of the bottom plate 121 close to the two ends; the fixed seat 17 is connected to the bottom plate 121 in a sliding manner along the length direction of the bottom plate 121; shoulder positions at two ends of the bottom of the fixing seat 17 are provided with waist-shaped grooves 123, and the fixing bolts 122 penetrate through the waist-shaped grooves 123 and fix the fixing seat 17 on the bottom plate 121. Before the center of the sphere of the workpiece is detected, the position of the fixed seat 17 on the base plate 121 is adjusted so that a line connecting the center of the three-jaw chuck 11 and the reference axis 16 of the rotary seat 3 is parallel to the center axis of the three-jaw chuck 11, and the positions of the centers of the different workpieces in the radial direction thereof are determined.
Referring to fig. 3 and 4, the rotary seat 3 includes a boss-shaped base 31, a central vertical axis of the base 31 is a reference axis 16, two rolling bearings 19 vertically arranged are sleeved on the base 31, and an installation frame 32 is sleeved outside the rolling bearings 19; the mounting frame 32 includes a rotating sleeve 321 which is a cylinder and is sleeved outside the rolling bearing 19, and a horizontal mounting panel 322 fixedly connected to an upper end surface of the rotating sleeve 321, wherein a length direction of the mounting panel 322 is parallel to a central axis of the three-jaw chuck 11.
referring to fig. 3, in order to adjust the center of the workpiece sphere to be overlapped on the reference axis 16 in the axial direction, a center adjusting mechanism 6 is provided on the upper surface of the mounting panel 322, and the center adjusting mechanism 6 includes a screw base 63 fixed to both ends of the mounting panel 322 by bolts; the two screw rod seats 63 are penetrated and rotatably connected with an adjusting screw rod 61; a rotating handle 25 is arranged at one end of the adjusting screw 61, which is arranged at one end of the screw seat 63 far away from the base 31 in a penetrating way; a slide rail 18 parallel to the length direction of the mounting panel 322 is fixed on both sides of the mounting panel 322 in the width direction through bolts; the two slide rails 18 are erected and connected with a slide block 62 in a sliding manner; the adjusting screw rod 61 penetrates through and is in threaded connection with the sliding block 62; the upper end surface of the sliding block 62 is fixedly connected with the bottom plate 121 through a bolt; when the adjusting screw 61 is rotated, the collet 1 and the workpiece can be moved in the radial direction of the base 31, so that the center of the sphere of the workpiece is moved and overlapped on the reference axis 16.
In order to feed back whether the center of the sphere of the workpiece is located on the reference shaft 16, referring to fig. 5, the detecting mechanism 2 includes a detecting seat 21 vertically arranged, and a mounting sleeve 20 is fixedly sleeved at a position of the detecting seat 21 close to the upper end; a bearing is embedded in the outer wall of the mounting sleeve 20; a horizontal detection lever 22 is sleeved outside the bearing, and two ends of the detection lever 22 extend towards the center deviating from the detection seat 21 respectively; the height of the detection lever 22 is consistent with the central height of the three-jaw chuck 11 (marked in fig. 3); one end of the detection lever 22 facing the three-jaw chuck 11 is rotatably connected with a wear-resistant steel ball 9, and the steel ball is made of tungsten steel; when in detection, the wear-resistant steel ball 9 is abutted against the spherical surface inside the workpiece. A mounting block 24 is fixed at the position of the detection seat 21 close to the upper end through thread matching; the dial indicator 23 is fixedly installed at one end, close to the detection lever 22, of the installation block 24 and far away from the three-jaw chuck 11, the dial indicator 23 comprises a meter body 231 fixed to the installation block 24 and a meter head 232 connected to the meter body 231 in a sliding mode, a resisting spring 233 is connected between the meter head 232 and the meter body 231, under the action of the resisting spring 233, the meter head 232 can keep resisting against one end, far away from the three-jaw chuck 11, of the detection lever 22, the meter head 232 can change the numerical value indicated by the meter body 231 in the stretching process, and therefore once the detection lever 22 swings, the numerical value of the meter body 231 can play a feedback role. In order to keep the abrasion-resistant steel ball 9 in contact with the inner wall of the workpiece during detection, a tension spring 8 is fixed on the detection seat 21, and the other end of the tension spring 8 is fixedly connected to one end, away from the three-jaw chuck 11, of the detection lever 22.
Referring to fig. 5, in order to facilitate replacement of a workpiece during a detection process, the detection mechanism 2 further includes an axial sliding table 4 and a radial sliding table 5, which are perpendicular to each other in the moving direction, and the structures of the axial sliding table 4 and the radial sliding table 5 are the same as the structure of a central adjustment mechanism 6 (shown in fig. 3); the radial sliding table 5 is fixed on the sliding block 62 of the axial sliding table 4, and the detection seat 21 is fixed on the sliding block 62 of the radial sliding table 5.
Referring to fig. 6, in order to facilitate the detection of the center difference between different workpieces, a distance measuring assembly 7 is disposed on one side of the mounting frame 32 in the width direction, and the distance measuring assembly 7 is a grating ruler; the grating ruler comprises a scale grating 71 and a grating reading head 72, wherein the scale grating 71 is fixed on one side of the width direction of the mounting frame 32 and is parallel to the length direction of a mounting panel 322 (shown in fig. 3), the grating reading head 72 is fixedly connected to the sliding block 62, the grating reading head 72 is connected in the scale grating 71 in a sliding manner, the grating reading head 72 is further electrically connected to a grating display screen 73, and the grating display screen 73 can feed back the position of the grating reading head 72 in the scale grating 71 in a numerical form; meanwhile, in order to be able to grasp the angle of rotation of the workpiece about the reference shaft 16 each time, as shown in fig. 3, a dial 10 is provided at the outer edge of the base 31, and a pointer 13 indicating the dial 10 is fixed to the mounting panel 322, so that the workpiece can be rotated within a certain angle when the mounting panel 322 is rotated, and interference with the detection lever 22 caused by the rotation of the workpiece by an excessively large angle is avoided.
Example two:
A detection method of a detection tool for detecting a center difference of a ball cage besides-star wheel comprises the following steps:
Step A: fixing a standard reference workpiece in a three-jaw chuck 11 on a clamping seat 1, and adjusting the position of the clamping seat 1 on a sliding block 62 along the radial direction of the three-jaw chuck 11 by using a fine adjustment mechanism 12 in advance to enable a horizontal connecting line between the center of the workpiece and a reference shaft 16 to be parallel to the central axial direction of an adjusting screw 61;
And B: adjusting the axial sliding table 4 and the radial sliding table 5, extending the detection lever 22 into the standard reference workpiece, enabling the wear-resistant steel ball 9 to abut against the inner spherical surface of the standard reference workpiece, and simultaneously keeping the gauge head 232 of the dial indicator 23 to abut against one end of the detection lever 22 far away from the wear-resistant steel ball 9;
And C: the mounting frame 32 with the clamp holder 1 and the standard workpiece rotates around the central reference shaft 16 of the base 31 by a certain angle, meanwhile, the numerical value of the dial indicator 23 is observed, if the numerical value changes greatly, the position of the clamp holder 1 on the mounting frame 32 is changed by rotating the adjusting screw 61, then the mounting frame 32 continues to rotate, if the numerical value of the dial indicator 23 is unchanged or slightly changed, the sphere center of the workpiece is adjusted to be coincident with the reference shaft 16, the swinging is stopped, and the data obtained by the grating reading head 72 is returned to zero as the standard value;
step D: and (4) fixing the next workpiece to be detected on the three-jaw chuck 11, repeating the steps B and C, and enabling the spherical center of the workpiece to be detected to coincide with the reference axis 16, wherein the value displayed by the final grating reading head 72 is the central difference value of the workpiece and the standard workpiece.
the present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (9)
1. The utility model provides a detect poor utensil of examining in detection ball cage besides-star wheel center which characterized by: the method comprises the following steps:
the clamping seat (1) comprises a three-jaw chuck (11) for clamping an outer star wheel (14) to be detected;
The detection mechanism (2) comprises a detection seat (21), a detection lever (22) which is rotatably connected to the detection seat (21) and one end of which is abutted against the inner wall of the outer star wheel (14), and a dial indicator (23) which is abutted against the other end of the detection lever (22) and is fixed on the detection seat (21);
The rotary seat (3) comprises a base (31) and a mounting rack (32) rotating around the vertical center of the base (31); the clamping seat (1) is connected to the mounting frame (32) in a sliding manner along the axial direction of the outer star wheel (14); mounting bracket (32) are equipped with central adjustment mechanism (6), central adjustment mechanism (6) including rotate connect in mounting bracket (32) and with outer star gear (14) central axial be parallel regulation lead screw (61), wear to establish and threaded connection in slider (62) of adjusting lead screw (61), slider (62) are followed outer star gear (14) central axial and are slided and connect in mounting bracket (32), holder (1) is fixed in slider (62).
2. The inspection tool for detecting the center difference of the outer star wheel of the ball cage according to claim 1, is characterized in that: the detection mechanism (2) further comprises an axial sliding table (4) and a radial sliding table (5) which are perpendicular to each other, and the detection seat (21) is fixedly connected to the axial sliding table (4) or the radial sliding table (5).
3. the inspection tool for detecting the center difference of the outer star wheel of the ball cage according to claim 1, is characterized in that: the clamping seat (1) further comprises a fine adjustment mechanism (12) which is fixed on the sliding block (62) and connected to the three-jaw chuck (11), and the fine adjustment mechanism (12) drives the three-jaw chuck (11) to move along the direction perpendicular to the adjusting screw rod (61).
4. The inspection tool for detecting the center difference of the outer star wheel of the ball cage according to claim 2, is characterized in that: mounting bracket (32) are equipped with range finding subassembly (7), range finding subassembly (7) include scale grating (71) that are parallel with outer star gear (14) central axis, connect in grating reading head (72) of slider (62), grating reading head (72) and scale grating (71) relative setting of sliding.
5. The inspection tool for detecting the difference between centers of the outer star wheels of the ball cage according to claim 4, is characterized in that: and a tension spring (8) is connected between one end of the detection seat (21) and one end of the detection lever (22) far away from the outer star wheel (14).
6. the inspection tool for detecting the difference between the centers of the ball cage and the besides-star wheels as claimed in claim 5, wherein: one end of the detection lever (22) far away from the dial indicator (23) is rotatably connected with a wear-resistant steel ball (9).
7. The inspection tool for detecting the difference between the centers of the ball cage and the besides-star wheels as claimed in claim 6, wherein: the dial indicator (23) comprises a gauge body (231) fixed on the detection seat (21), a gauge head (232) connected to the gauge body (231) in a sliding manner, and a holding spring (233) connected between the gauge head (232) and the gauge body (231).
8. The inspection tool for detecting the center difference of the outer star wheel of the ball cage according to claim 1, is characterized in that: the base (31) is provided with a dial (10), and the mounting frame (32) is provided with a pointer (13) aligned with the dial (10).
9. A detection method using the detection tool for detecting the center difference of the outer star wheel of the ball cage in the claim 7 is characterized in that: the method comprises the following steps:
Step A: a three-jaw chuck (11) for fixing the standard reference workpiece on the clamping seat (1);
and B: adjusting the axial sliding table (4) and the radial sliding table (5), extending the detection lever (22) into the standard reference workpiece, enabling the wear-resistant steel ball (9) to abut against the inner spherical surface of the standard reference workpiece, and simultaneously keeping the gauge head (232) of the dial gauge (23) and one end of the detection lever (22) far away from the wear-resistant steel ball (9) to abut against each other;
and C: the mounting frame (32) rotates around the vertical center of the base (31) with the clamp holder (1) at a certain angle, meanwhile, the numerical value of the dial indicator (23) is observed, if the numerical value is changed greatly, the position of the clamp holder (1) on the mounting frame (32) is changed by rotating the adjusting screw rod (61), then the mounting frame (32) continues to rotate, if the numerical value of the dial indicator (23) is unchanged or slightly changed, the swinging is stopped, and the data obtained by the grating reading head (72) is returned to zero as a standard value;
Step D: and (4) fixing the next detected workpiece on the three-jaw chuck (11), and repeating the steps B and C, wherein the value displayed by the final grating reading head (72) is the central difference value of the workpiece and the standard workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710765743.1A CN107314731B (en) | 2017-08-30 | 2017-08-30 | Detection tool for detecting center difference of outer star wheel of ball cage and detection method using detection tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710765743.1A CN107314731B (en) | 2017-08-30 | 2017-08-30 | Detection tool for detecting center difference of outer star wheel of ball cage and detection method using detection tool |
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| Publication Number | Publication Date |
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| CN107314731A CN107314731A (en) | 2017-11-03 |
| CN107314731B true CN107314731B (en) | 2019-12-06 |
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| CN201710765743.1A Active CN107314731B (en) | 2017-08-30 | 2017-08-30 | Detection tool for detecting center difference of outer star wheel of ball cage and detection method using detection tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108613616A (en) * | 2018-06-14 | 2018-10-02 | 南京冠盛汽配有限公司 | Inner race spherical curvature cubing |
| CN111043935B (en) * | 2019-12-30 | 2021-08-17 | 武汉市恒通诚汽车零部件有限公司 | Device and method for automatically detecting position difference value of central hole of outer star wheel |
| CN113483621A (en) * | 2021-06-06 | 2021-10-08 | 中国长江电力股份有限公司 | Device and method for accurately adjusting mechanical over-speed flying motion value of hydroelectric generating set |
| CN114526704B (en) * | 2022-01-30 | 2024-02-23 | 安徽英克尔汽车零部件有限公司 | Circumferential gap detection method for ball cage type constant-speed transmission shaft assembly |
| CN117128832B (en) * | 2023-10-27 | 2024-01-26 | 万向钱潮股份公司 | Checking fixture for star cover |
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| CN107314731A (en) | 2017-11-03 |
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Denomination of invention: Inspection tool for detecting center difference of outer star wheel of spherical cage and detection method using the same Effective date of registration: 20220912 Granted publication date: 20191206 Pledgee: Zhejiang Pinghu ICBC Rural Bank Co.,Ltd. Pledgor: PINGHU YUDA PRECISION MACHINERY CO.,LTD. Registration number: Y2022330002161 |