CN113091573B - Gauge for measuring groove depth of tooth sleeve locking block - Google Patents
Gauge for measuring groove depth of tooth sleeve locking block Download PDFInfo
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- CN113091573B CN113091573B CN201911337428.4A CN201911337428A CN113091573B CN 113091573 B CN113091573 B CN 113091573B CN 201911337428 A CN201911337428 A CN 201911337428A CN 113091573 B CN113091573 B CN 113091573B
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- 238000001514 detection method Methods 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 210000003781 tooth socket Anatomy 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 14
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 description 26
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 238000013178 mathematical model Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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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
- G01B5/18—Measuring arrangements characterised by the use of mechanical techniques for measuring depth
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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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- 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
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a gauge for measuring the depth of a tooth sleeve locking block groove, which comprises a base and a gauge main body; the positioning mandrel is fixedly connected with the gauge main body and sleeved with the positioning tooth sleeve; the first lever is positioned at the lower part of the positioning mandrel and is axially arranged along the positioning mandrel as a whole, a measuring end of the first lever is provided with a first measuring head adjacent to the inner wall surface of the tooth sleeve, and the other end of the first lever is hinged with the detecting tool main body at the hinge part; the middle position of the first lever is provided with a first hinge part. The measuring end of the second lever is provided with a second measuring head clamped into the corresponding tooth sleeve sliding block groove, the second lever is movably lapped on the upper surface of the first lever, and the other end of the second lever is provided with a measuring surface which is adjacent to the dial indicator measuring head of the dial indicator; the middle end of the second lever is hinged with the first lever at the first hinge part, and the dial indicator is connected above the gauge main body. The invention uses a double-lever structure, one lever measures the center change of the tooth sleeve, the other lever measures the radius change of the sliding block groove, and the dial indicator directly displays the radius value on the lever differential change, thereby having the advantage of high precision.
Description
Technical Field
The invention relates to the technical field of synchronizers, in particular to a gauge for measuring the groove depth of a tooth sleeve locking block.
Background
The synchronizer is an inevitable product of the development to the popularization stage of the automobile, the operation and driving of the automobile which is an important product of modern industry is changed from personnel rights accumulated by working experience of complex and long-term operation technology into the operation method which is easy to grasp by each ordinary person, the tooth sleeve is an important part of the synchronizer of the automobile driver, the quality of the synchronizer is good and bad, the operation and the control performance of the automobile are directly influenced, the gear sleeve ensures smooth gear when shifting due to the action of the tooth sleeve on the synchronizer in the driver, and the gear sleeve can be locked after shifting, so the size of the tooth sleeve part is small, but the structure is complex, the operation can be completed only by generally going through more than ten working procedures in the process of processing the tooth sleeve product, and good processing equipment is required to be accurately detected to ensure the quality, so that the problem can be discovered at any time, and the parameters of the processing equipment are timely adjusted to solve the problem.
The connection between the synchronizer gear sleeve and the gear hub is completed by locking blocks, and three locking block grooves which are uniformly distributed on the gear sleeve and the gear hub are commonly also called as sliding block grooves. The radius size and the halving precision of the sliding block groove directly influence the cooperation and connection of the synchronizer gear sleeve and the gear hub, influence the operability in the production and processing of the synchronizer gear sleeve, and in order to meet the fine process quality, the yield of products is improved, the position of the sliding block groove of the processed gear sleeve is required to be detected, so that the accurate position of the sliding block groove on the gear sleeve is ensured, and the follow-up high-quality use is met.
The component of the reverse gear synchronizer comprises a tooth sleeve which is annular, and teeth are arranged on the inner wall. A plurality of locking piece grooves 100 are provided at the middle position in the width direction of the tooth cover and radially inside for assembling with the tooth hub. As shown in fig. 1 and 2, three slide block grooves 100 are uniformly distributed in the circumferential direction of the tooth sleeve, and the steel ball part of the slide block groove is a partial spherical surface with the diameter r of 5mm. In the prior art, the detection of the position of the sliding block is mostly realized by adopting a manual hand-held detection tool, so that the use is very complicated, and the whole efficiency is low.
In addition, the traditional checking fixture has the problem of structure, and some tooth sleeves directly measure the diameters of locking block grooves by adopting a three-point method, for example, the authorized bulletin number is CN208795103U, the application date is China patent number of 2018, 10 month and 12, and the name is a synchronizer tooth sleeve sliding block groove position degree checking fixture; and then sleeving the tooth sleeve to be detected on a detection boss, wherein the detection boss is provided with three arc surfaces for sleeving and positioning with the tooth sleeve, reading out the data and comparing the data with the standard data obtained before, and the larger the difference value is, the larger the deviation is. The diameter of the lock block groove on the tooth sleeve is measured, and if the diameters of circular arcs formed by the three lock block grooves are different from those of the tooth sleeve, the tooth sleeve and the tooth hub cannot work normally, so that the measurement of the radius of the lock block groove of the tooth sleeve is based on the tooth top circle, and the measurement directly influences the quality of the synchronizer.
For another lever structure of the gauge, the measurement inaccuracy problem also exists, and the structure is shown in fig. 3. The measuring end adopts a lever structure, a lever provided with a measuring head which is the same as a steel ball with the lock block required to be in a size is assembled, and the depth of a sliding block groove is positioned by the tooth top circle of the tooth sleeve. In order to ensure that each tooth sleeve can be smoothly taken down after being sleeved on the positioning mandrel. A plurality of gaps are reserved between the positioning mandrel and the tooth sleeve, such as the tooth sleeve in fig. 1 and 2, the diameter E of the tooth top circle isThe maximum physical dimension of the tooth sleeve, i.e. the smallest dimension of the addendum circle, is 73.65, while the diameter of the positioning mandrel is 0.02mm smaller than the smallest dimension of the addendum circle. The problem of the different axes between the positioning mandrel and the calibration piece, between the positioning mandrel and the actually measured tooth sleeve can be caused.
In addition, in order to reduce measurement errors in the prior art, the size of the calibration piece is the median size of a product, the diameter of the tooth sleeve tip circle changes along with repeated sharpening and heat treatment influences of a broach in the tooth sleeve machining process, so that errors caused by the change of the diameter of the tooth sleeve tip circle in measurement cannot be overcome, if the diameter of the tooth sleeve is maximum, the size of the calibration piece is the median value of the product and is positioned on the same positioning shaft, the radius influence error of the upper part of the tooth sleeve is 0.05mm, the measurement result is 'actual size+0.05mm', and when the size of the tooth sleeve tip circle is minimum, the measurement result is 'actual size-0.05mm', and the problem of non-axiality exists between the calibration piece and the actually measured tooth sleeve.
In summary, in the prior art, the problems of reduced measurement accuracy and large error caused by the problem of different axes among the positioning mandrel, the calibration piece and the actually measured tooth sleeve exist.
Disclosure of Invention
The invention aims to provide a gauge for measuring the depth of a tooth sleeve sliding block groove with high precision, so as to solve the defects in the technology.
In order to achieve the above object, the present invention provides the following technical solutions:
the base is used for supporting the gauge;
The gauge body is fixedly connected with the base, and the bottom of the gauge body is provided with a hinge part;
The positioning mandrel is fixedly connected with the gauge main body and is provided with a positioning surface sleeved with the tooth sleeve and used for sleeved positioning of the measured tooth sleeve;
The first lever is positioned at the lower part of the positioning mandrel and is axially arranged along the positioning mandrel as a whole, a first measuring head adjacent to the inner wall surface of the tooth sleeve is arranged at the measuring end of the first lever, and the other end of the first lever and the detecting tool main body are hinged to the hinging part;
the measuring end of the second lever is provided with a second measuring head clamped into the corresponding tooth sleeve sliding block groove, and the other end of the second lever is provided with a measuring surface which is adjacent to the dial indicator measuring head of the dial indicator;
the second measuring head can move along the radial direction of the tooth sleeve through the mandrel spring;
the second lever is positioned above the first lever, the middle end of the second lever and the first lever are hinged to the first hinge part, and the upper surface of the first lever can drive the second lever to rotate on the first hinge part;
the dial indicator is connected to the upper portion of the gauge main body, and the gauge rod penetrates through the gauge main body.
In the technical scheme, the gauge provided by the invention aims at the structural problem existing in the gauge detection of the radius or depth of the traditional tooth sleeve locking block groove, and the gauge utilizes a double-lever structure, one lever measures the center change of the tooth sleeve, the other lever measures the radius change of the locking block groove, and the dial indicator directly displays the radius value on the lever differential change. Has the advantage of high precision.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic elevational view of a gear sleeve;
FIG. 2 is a schematic side sectional view of a tooth sleeve;
FIG. 3 is a schematic view of a prior art clamp;
FIG. 4 is a schematic structural diagram of the gauge provided by the present invention;
FIG. 5 is a mathematical model of a first measurement scenario of the gauge provided by the present invention;
FIG. 6 is a mathematical model of a second measurement scenario of the gauge provided by the present invention;
FIG. 7 is a mathematical model of a third measurement scenario of the gauge provided by the present invention;
FIG. 8 is a schematic side view of the gauge body according to the present invention;
FIG. 9 is a schematic top view of a first lever according to the present invention;
FIG. 10 is a schematic elevational view of a first lever according to the present invention;
FIG. 11 is a schematic view of a second lever according to the present invention;
FIG. 12 is a schematic view of a partial structure of a first measurement scenario according to the present invention;
FIG. 13 is a schematic view of a partial structure of a second measurement scenario according to the present invention;
FIG. 14 is a schematic view of a positioning mandrel according to the present invention;
FIG. 15 is a schematic view of the cross-sectional structure at A-A of FIG. 15 provided by the present invention.
Reference numerals illustrate:
1. A gauge body; 2. positioning a mandrel; 3. a first lever; 4. a lever rotation shaft; 5. a body rotating shaft; 6. a second lever; 7. a dial indicator;
11. A hinge part; 12. a screw plug; 13. a body spring; 14. a push rod;
21. a spindle spring; 22. a mandrel screw; 23. positioning teeth;
30. A first gauge head; 31. a first hinge part; 32. a tooth sleeve contact surface; 33. square holes;
60. a second gauge head; 62. a measurement surface; 63. a horizontal bar; 64. a first vertical plate; 65. a second vertical plate;
71. A dial gauge head;
100. A locking piece groove.
Detailed Description
In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 15, a gauge for measuring a tooth sleeve slider groove depth provided by an embodiment of the present invention includes: the base and the gauge body 1, wherein the bottom of the gauge body 1 is provided with a hinge part 11;
The positioning mandrel 2 is fixedly connected with the gauge main body 1 and is provided with a positioning surface sleeved with the tooth sleeve and used for sleeved positioning of the measured tooth sleeve;
the first lever 3 is positioned at the lower part of the positioning mandrel 2, the whole positioning mandrel 2 is axially arranged, a first measuring head 30 adjacent to the inner wall surface of the tooth sleeve is arranged at the measuring end of the first lever 3, and the other end of the first lever 3 is hinged with the gauge body 1 at the hinge part 11;
the middle position of the first lever 3 is provided with a first hinge part 31, and the ratio of the distance A between the first side head 30 and the first hinge part 31 to the distance B between the first hinge part 31 and the hinge part 11 is 4:1 along the axial direction of the tooth sleeve to be measured;
The second lever 6, the measuring end of the second lever 6 is provided with a second measuring head 60 clamped into the corresponding tooth sleeve locking block groove, and the second measuring head 60 can move along the radial direction of the tooth sleeve through the mandrel spring 21;
The second lever 6 is positioned above the first lever 3, and the other end of the second lever is provided with a measuring surface 62 which is adjacent to a dial indicator measuring head 71 of the dial indicator 7;
The middle end of the second lever 6 is hinged with the first lever 3 at a first hinging part 31, and the distance ratio between the measuring end of the measured tooth sleeve and the first hinging part 31 along the axial direction of the measured tooth sleeve and the distance between the first hinging part 31 and the dial indicator measuring head 71, namely D is 1:1;
the dial indicator 7 is connected above the gauge main body 1, and the gauge rod penetrates through the gauge main body 1.
Specifically, examine a main part 1 and be rectangular plate structure, through mechanical connection spare fixed connection such as screw, pin on the base, examine the front end of a main part 1 and seted up the hole that matches with positioning mandrel 2, positioning mandrel 2 and examine a main part and carry out fixed connection through mechanical common connecting piece screw, pin etc.. The tooth sleeve is sleeved outside the positioning mandrel 2.
The first lever 3 and the second lever 6 are assembled at the lower parts of the gauge body 1 and the positioning mandrel 2, are integrally formed into a long rod shape, and are arranged along the axial direction of the tooth sleeve in the length direction.
Through grooves corresponding to the positions are formed in the lower part of the gauge main body 1 and the lower part of the positioning mandrel 2 along the axial direction of the tooth sleeve; the first lever 3 is arranged in the through groove; the through groove and one end of the first lever 3, which is far away from the measuring end, are provided with a body rotating shaft 5 in a penetrating way; the axis position of the body rotation shaft 5 forms a hinge 11.
Preferably, the positioning mandrel 2 is vertically provided with a threaded hole through the axis thereof, and is connected with the mandrel screw 22 in a threaded connection manner, and the mandrel spring 21 is abutted between the bottom surface of the mandrel screw 22 and the top surface of the measuring end of the second lever 6. Therefore, the second measuring head 60 can be ensured to be always pressed with the tooth sleeve sliding block groove under the action of the spring, and when the sliding block groove moves vertically, the second measuring head 60 can sensitively move along with the locking block groove, so that the measurement is more accurate.
Preferably, the gauge main body 1 is vertically provided with a threaded through hole, a matched screw plug 12 is penetrated in the threaded through hole, the lower bottom surface of the screw plug 12 is connected with a body spring 13, and the measuring end of the first lever 3 is pressed on the inner wall surface of the tooth sleeve under the drive of the body spring 13; the driving positions of the body spring 13 and the first lever 3 are located between the measuring end of the first lever 3 and the lever rotation shaft 5. Like this the lower surface of first lever 3 has the support of tooth cover internal face and body pivot 4, and there is the effect of body spring 13 on its upper surface, and when the tooth cover vertically had the removal, first gauge head 30 can be sensitive follow the tooth cover motion, and the measurement is more accurate.
Preferably, the gauge main body 1 is sequentially provided with a screw plug 12, a body spring 13 and a push rod 14 from top to bottom in a penetrating way; the body spring 13 is abutted between the bottom surface of the screw plug 12 and the top surface of the push rod 14; the extending end of the push rod 14 passes through the second lever 6 and then contacts with the upper surface of the first lever 3. When the body spring 13 is to press the first lever 13, the second lever 6 needs to be penetrated, which may result in the longer length of the body spring 13 and affect the compression effect of the spring. A push rod 14 is placed between the spring body 13 and the first lever 13, part of the push rod 14 extends into the threaded through hole, and the other part of the push rod penetrates through the through hole of the second lever 6 and then contacts the first lever 3.
Preferably, the tooth socket contact surface 32 of the first gauge head 30 is in point contact with the tooth where the slider groove is located. In particular, the sleeve contact surface 32 is preferably a semi-spherical surface having a radius R1, and those skilled in the art will appreciate that the smaller the radius, the more accurately the sleeve contact surface 32 contacts the tooth. The two levers are lapped on the teeth with the slider grooves during measurement. It is conceivable to those skilled in the art that the measuring end of the first lever 3 is in point contact or line contact with the tooth cover, and the measuring accuracy is higher.
Preferably, the second lever 6 is flat and has a downward opening in an 'F' shape, and comprises a horizontal rod 63, a first vertical plate 64 extends downward at the end of the horizontal rod 63, the bottom surface of the first vertical plate 64 is fixedly connected with a second measuring head 60, and the second measuring head 60 is a sphere with the same diameter as the steel ball part of the locking block groove.
A second vertical plate 65 extends downwards in the middle of the horizontal rod 63, and the second vertical plate 65 extends into a square hole 33 formed in the upper surface of the first lever 3;
the second vertical plate 65 and the first lever 3 are provided with lever rotating shafts 4 in corresponding positions in a penetrating way;
The first and second risers 64, 65 form a space for accommodating the first lever 3. The measuring end of the first lever 3 is surrounded by a first riser 64, the second probe 60 being forward, the first probe 30 being further away from the lock groove behind the first riser 64. The design structure is compact, and the space is saved.
Preferably, as seen in fig. 14-15, the circumferential positioning is performed by providing at least one positioning tooth 23 on the positioning spindle 2 during the measurement of the tooth sleeve. The positioning teeth 23 are vertically embedded into the cylindrical surface of the positioning mandrel 2, and the surface of the protruding cylindrical surface is provided with teeth, which are positioned in tooth grooves, so that the sliding block groove is not influenced by the circumferential direction during measurement. The axial direction of the positioning spindle 2 can fixedly connect the positioning teeth 23 and the positioning spindle 2 by arranging screws. The circumferential and axial positioning means of the tooth sleeve and the positioning mandrel belong to common knowledge in the field of tooth sleeve detection tools, and are not described in detail here.
The measurement process and principle are explained in three cases: taking the product size in fig. 2 as an example, the calibration piece size is the median value of the product, the tolerance is 1/10 of the product tolerance, the tooth top circle diameter E is ∅ 73.65.65±0.1mm, the lock groove depth, that is, the lock groove radius R is 33.375 ±0.1mm, and the lock groove steel ball portion diameter R is 5mm.
First kind: only when the radius of the locking block groove changes:
When in measurement, the calibration piece is put on the positioning mandrel 2 of the gauge, the dial indicator is zeroed, and the tooth sleeve product is measured in the same way. When the tooth sleeve tip circle is the same as the diameter of the calibration piece, and the lock groove radius is changed from 33.375 to a, as shown in fig. 12, there are two lock grooves, the lock groove below is shown as an ideal position by a dotted line, and the lock groove above is the actual position to be measured. In practice, the position of the ball part of the channel steel of the locking block is usually shifted upwards or downwards relative to the ideal position. The first lever 3 does not change relative to the calibration piece, and does not rotate around the pin 5 of the connecting body, while the second lever 6 rotates around the pin 4 of the lever due to the change of the radius of the locking piece groove, the distance D from the measuring point of the second measuring head 60 to the pin 4 of the lever is the same as the distance C from the pin 4 of the lever to the measuring head 71 of the dial indicator, and therefore the change of the radius of the locking piece groove is transmitted to the dial indicator for display in a ratio of 1:1.
Second kind: only when the tooth sleeve addendum circle radius changes:
As shown in fig. 13, when the sleeve tip circle diameter is not median but is changed by Δ, and the lock groove position of the lock groove relative to the calibration piece is not changed: at this time, the tooth sleeve addendum circle is hung on the positioning mandrel 2 in theory, at this time, the tooth sleeve center is changed by delta/2 relative to the center of the positioning mandrel 2, and the locking piece groove steel ball part is not changed relative to the center of the positioning mandrel 2, and is the same as the position of the calibration piece. The steel ball part of the locking piece groove is upward changed by delta/2 relative to the center of the tooth sleeve, namely, the steel ball part is equal to R (radius of the locking piece groove of the calibration piece) -delta/2.
In actual measurement, the first gauge head 30 moves downward by a delta due to the fact that the tooth sleeve is not coaxial with the positioning mandrel 2, the first lever 3 rotates around the body pin 5, the lever pin 4 is a part of the first lever 3, and the distance A from the lever pin 4 to the body pin 5 is 1/4 of the distance B from the first lever 3 to the body pin 5, so that the lever pin 4 also moves downward by a delta/4. Because the measuring point of the second measuring head 60 at the locking piece groove is not displaced relative to the center of the positioning mandrel 2, the second lever 6 rotates by taking the second measuring head 60 as a fulcrum, and the distance from the measuring point of the second measuring head 60 to the lever rotating shaft 4 is equal to the distance from the lever rotating shaft 4 to the measuring point of the dial indicator measuring head 71 according to the downward displacement delta/4 of the lever pin shaft 4, the percentage representation value displays downward delta/2, namely R-delta/2 value, and the theoretical value analyzed is kept consistent.
Third kind: when the radius of the tooth sleeve top circle changes and the radius of the locking piece groove also changes:
this case belongs to the superposition of the first and second. The principle is similar and will not be described in detail.
Fig. 5 is a mathematical model of the first measurement condition, fig. 6 is a mathematical model of the second measurement condition, fig. 7 is a mathematical model of the third measurement condition, and in summary, the first lever 3 measures the center of the tooth sleeve, the second lever 6 measures the radius of the lock groove of the tooth sleeve based on the center of the tooth sleeve, and the variation of the first measuring head 60 is 1:1 affects the change in the dial indicator. Variation 1 of lever pin 4: 2, the tooth sleeve locking piece groove radius is measured by a differential measurement principle and a mathematical addition and subtraction principle, and the mathematical formula is as follows: the value of the dial indicator l=Δ1-2Δ2.Δ1 is the change amount of the radius of the groove of the sliding block, Δ2 is the change amount of the addendum circle, and the lever pin 4 follows the first lever 3. The change of the size of the addendum circle measured by the first lever 3 is expressed or reflected on the lever pin 4, and the lever pin 4 is the differential common point of the first lever 3 and the second lever 6.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.
Claims (8)
1. Gauge for measuring tooth set lock block groove depth, characterized by comprising:
the base is used for supporting the gauge;
the detection tool comprises a detection tool main body (1), wherein the detection tool main body (1) is fixedly connected with the base, and a hinge part (11) is arranged at the bottom of the detection tool main body (1);
The positioning mandrel (2) is fixedly connected with the gauge main body (1) and is provided with a positioning surface sleeved with the tooth sleeve, so that the measured tooth sleeve is sleeved and positioned in the horizontal direction;
the first lever (3) is positioned at the lower part of the positioning mandrel (2), and is axially arranged along the positioning mandrel (2) as a whole;
the measuring end of the first lever (3) is provided with a first measuring head (30) adjacent to the inner wall surface of the tooth sleeve, and the other end of the first lever (3) and the gauge main body (1) are hinged to the hinge part (11);
The first lever (3) is provided with a first hinge part (31) between the first measuring head (30) and the hinge part (11);
The measuring end of the second lever (6) is provided with a second measuring head (60) clamped into a corresponding tooth sleeve sliding block groove, and the other end of the second lever (6) is provided with a measuring surface (62) which is adjacent to a dial indicator measuring head (71) of the dial indicator (7); wherein,
The ratio of the distance between the first measuring head (30) and the first hinging part (31) to the distance between the first hinging part (31) and the hinging part (11) is 4:1, and the ratio of the distance between the second lever (6) measuring end and the first hinging part (31) to the distance between the first hinging part (31) and the dial indicator measuring head (71) is 1:1;
The second measuring head (60) can move along the radial direction of the tooth sleeve through a mandrel spring (21), a mandrel screw (22) is vertically arranged on the positioning mandrel (2), and the mandrel spring (21) is abutted between the bottom surface of the mandrel screw (22) and the top surface of the measuring end of the second lever (6);
The second lever (6) is positioned above the first lever (3), the middle end of the second lever (6) and the first lever (3) are hinged to the first hinge part (31), and the upper surface of the first lever (3) can drive the second lever (6) to rotate on the first hinge part (31);
The dial indicator (7) is connected to the upper portion of the gauge main body (1), and the measuring rod of the dial indicator penetrates through the gauge main body (1).
2. The gauge according to claim 1, characterized in that the gauge body (1) is provided with a vertically arranged screw plug (12) in a penetrating way, the lower bottom surface of the screw plug (12) is connected with a body spring (13), and the measuring end of the first lever (3) is pressed on the inner wall surface of the tooth sleeve under the drive of the body spring (13);
The pressing position of the body spring (13) and the first lever (3) is located between the measuring end of the first lever (3) and the first hinge part (31).
3. The gauge according to claim 2, wherein the gauge body (1) is provided with the screw plug (12), the body spring (13) and the push rod (14) in sequence from top to bottom;
The body spring (13) is abutted between the bottom surface of the screw plug (12) and the top surface of the push rod (14);
the extending end of the push rod (14) is penetrated through the second lever (6) and then is contacted with the upper surface of the first lever (3).
4. The gauge according to claim 1, wherein a through groove is formed below the gauge body (1) along the axial direction of the tooth sleeve;
The first lever (3) is arranged in the through groove;
a body rotating shaft (5) is arranged at a position corresponding to one end, far away from the measuring end, of the first lever (3) in a penetrating way;
the axis position of the body rotating shaft (5) forms the hinge part (11).
5. Gauge according to claim 1, characterized in that the mantle contact surface (32) of the first gauge head (30) is in point contact with the inner teeth of the mantle in the radial direction.
6. The gauge according to claim 5, wherein the tooth sleeve contact surface (32) is hemispherical.
7. The gauge according to claim 1, wherein the second lever (6) comprises a horizontal rod (63), a first vertical plate (64) extends downwards at the end part of the horizontal rod (63), and a second measuring head (60) with the same size as the tooth sleeve sliding block groove is fixedly connected to the bottom surface of the first vertical plate (64);
A second vertical plate (65) extends downwards in the middle of the horizontal rod (63), and the second vertical plate (65) extends into a square hole (33) formed in the upper surface of the first lever (3);
the second vertical plate (65) and the first lever (3) are provided with lever rotating shafts (4) in a penetrating manner at corresponding positions so as to form the first hinge part (31);
The first vertical plate (64) and the horizontal rod (63) form a space for accommodating the first lever (3).
8. Gauge according to claim 1, characterized in that the positioning spindle (2) is provided with positioning teeth (23) matching the tooth socket shape of the tooth socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911337428.4A CN113091573B (en) | 2019-12-23 | 2019-12-23 | Gauge for measuring groove depth of tooth sleeve locking block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911337428.4A CN113091573B (en) | 2019-12-23 | 2019-12-23 | Gauge for measuring groove depth of tooth sleeve locking block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113091573A CN113091573A (en) | 2021-07-09 |
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| CN211147543U (en) * | 2019-12-23 | 2020-07-31 | 长春市春求科技开发有限公司 | Gauge for measuring groove depth of gear sleeve locking block |
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| DE8502959U1 (en) * | 1985-02-04 | 1985-07-11 | Harbott, Wolfgang, 4630 Bochum | Prism measuring device for measuring outside diameters, keyway depths and for measuring the cylindricity of round workpieces |
| CN1299955A (en) * | 1999-12-12 | 2001-06-20 | 陈其良 | Capacitive grid type digital display lever meter |
| CN102384713B (en) * | 2011-11-10 | 2013-09-25 | 赵忠兴 | Symmetry degree error testing jig |
| CN203657685U (en) * | 2013-12-31 | 2014-06-18 | 香河凯华齿轮有限公司 | Adjustable detection device for shifting fork groove of synchronizer gear sleeve |
| CN104439985B (en) * | 2014-12-16 | 2017-01-11 | 重庆第二机床厂有限责任公司 | Machining method of tension bush clamp for shifting fork groove of automobile gear sleeve |
| JP2016164526A (en) * | 2015-03-06 | 2016-09-08 | 旭産業株式会社 | Groove depth measurement device |
| CN204788195U (en) * | 2015-07-15 | 2015-11-18 | 中国重汽集团杭州发动机有限公司 | Utensil is examined to gash depth |
| CN205580426U (en) * | 2015-11-23 | 2016-09-14 | 无锡巨通矿山机械有限公司 | Deep hole groove measuring tool |
| CN205482751U (en) * | 2016-02-04 | 2016-08-17 | 江门市力泰科技有限公司 | Utensil is examined to major axis deep hole axiality |
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| CN211147543U (en) * | 2019-12-23 | 2020-07-31 | 长春市春求科技开发有限公司 | Gauge for measuring groove depth of gear sleeve locking block |
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