CN113091579B - Gauge for measuring symmetry and height of combined teeth - Google Patents

Gauge for measuring symmetry and height of combined teeth Download PDF

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Publication number
CN113091579B
CN113091579B CN201911337766.8A CN201911337766A CN113091579B CN 113091579 B CN113091579 B CN 113091579B CN 201911337766 A CN201911337766 A CN 201911337766A CN 113091579 B CN113091579 B CN 113091579B
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China
Prior art keywords
positioning
measuring
tooth
base
vertical
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CN113091579A (en
Inventor
唐大春
刘波浪
扶平
袁国君
张家伟
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Changchun Chunqiu Technology Development Co ltd
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Changchun Chunqiu Technology Development Co ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/24Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
    • G01B5/25Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
    • G01B5/252Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/02Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
    • G01B5/06Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
    • G01B5/061Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness height gauges

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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 symmetry and height of a combination tooth, which comprises a base; the vertical plate component is fixedly connected with the base, and the measuring head component is integrated on the vertical plate component; the measuring head component comprises a measuring head which is axially arranged along the tooth sleeve and is positioned above the tooth sleeve; a sliding member integrated on the riser member; the measuring head drives a vertical measuring rod of the vertical dial indicator to vertically reciprocate and drives a horizontal measuring rod of the horizontal dial indicator to horizontally reciprocate through the sliding part; the fixed part is fixedly connected with the base and is provided with a cylindrical surface sleeved and positioned with the tooth sleeve, and the cylindrical surface is perpendicular to the base. According to the invention, the measurement of the symmetry and the height of the combined tooth is realized by arranging the measuring head, the horizontal dial indicator for measuring the horizontal movement distance of the measuring head and the vertical dial indicator for measuring the vertical movement distance of the measuring head. Has the advantages of simple structure and accurate measurement.

Description

Gauge for measuring symmetry and height of combined teeth
Technical Field
The invention relates to the technical field of synchronizers, in particular to a gauge for measuring the symmetry and the height of a combination tooth.
Background
As shown in FIG. 1, the detection tool for measuring the symmetry degree of the combined teeth is adopted at home and abroad, the symmetry degree of the combined teeth and the internal spline teeth of the tooth sleeve directly affects the gear shifting smoothness performance of the transmission, the symmetry degree of the tooth sleeve of the high-end transmission is required to be 0.07mm, so that the detection of the combined teeth of the tooth sleeve is one of the necessary detection items, and the height from the combined teeth to the other end face is also the item which must be ensured to be of a size, but the traditional detection tool cannot be detected and can only be detected by a gear measuring machine, and the design concept of the traditional detection tool shown in FIG. 1 is as follows: the calibration piece is placed into a positioning mechanism of a checking fixture, the positioning mechanism is provided with a positioning shaft which can position the aperture of a tooth top circle, a positioning measuring head with telescopic involute teeth is used for positioning the involute teeth of an internal spline and the end face of a tooth sleeve, two dial indicators are symmetrically arranged on a turning plate mechanism, a constant frame mechanism is formed by positioning a positioning pin on the turning plate mechanism and the positioning shaft during measurement, the symmetrical two dial indicator measuring heads are positively measured on the tooth surface of a combined tooth, the dial indicators are aligned to zero, the tooth sleeve is placed in the same way, the visual value difference of the two dial indicators is changed, and then the visual value difference of the two dial indicators is changed according to the angle of the combined tooth: the degree of symmetry of the coupling teeth is converted by 120 DEG, 110 DEG, 90 DEG and the like.
As shown in fig. 2, the current gauge for measuring the symmetry of the bonding teeth must consider the problem of different angles of the bonding teeth at home and abroad, taking 90 ° as an example, the calibration piece is put into the gauge dial indicator to be zero, and the two dial indicators are put into the tooth sleeve in the same way to see the difference of apparent value change, and because of more influencing factors, the absolute values of the two indicators are the same in the case of only having an offset state, but one is positive and one is negative, and the actual symmetry of the bonding teeth of the two indicators is 2 delta/0.7071. The combined teeth only have high and low state change, the absolute values of the two tables are the same, the visual values of the two tables are all positive values, the subtracted values are 0, and the symmetry degree of the actual combined teeth is 0. The angle influence state is very complex, the angle cannot be measured by the gauge, and the operator cannot analyze the angle, but the angle influence is basically not considered when the small size of the combined tooth surface is considered, and the symmetry degree of the combined tooth is calculated to be 2 delta/0.5 according to the actual measured value difference of two tables of different combined tooth angles such as 120 degrees. The actual measurement of the two tables at 110 deg. is different, and the symmetry degree of the combined teeth is calculated to be 2 delta/0.574. The traditional gauge needs to see two dial indicator values and calculate, the coefficients to be divided by combining different tooth angles are different, the operator is not intuitive, and the superposition errors of various states need to be converted, so that the analysis is more difficult.
In view of the foregoing, there is a need for a simple and accurate measuring tool for measuring the symmetry of the teeth.
Disclosure of Invention
The invention aims to provide a gauge for measuring the symmetry and the height of a combined tooth 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:
Comprising the following steps: a base;
the vertical plate component is fixedly connected with the base, and a measuring head component and a sliding component are integrated on the vertical plate component;
The measuring head component comprises a measuring head axially arranged along the tooth sleeve and positioned above the tooth sleeve, a horizontally placed horizontal dial indicator for measuring symmetry and a vertically placed vertical dial indicator for measuring height;
A sliding member integrated with the riser member; the measuring head drives a vertical measuring rod of the vertical dial indicator to vertically reciprocate through the sliding part, and drives a horizontal measuring rod of the horizontal dial indicator to horizontally reciprocate;
the bottom of the measuring head is matched with the tooth surface shape of the combined tooth;
The fixing component is fixedly connected with the base and is provided with a cylindrical surface sleeved and positioned with the tooth sleeve, and the cylindrical surface is perpendicular to the base.
In the technical scheme, the detection tool provided by the invention realizes simultaneous measurement of the symmetry degree and the height of the combined teeth by arranging the measuring head, the horizontal dial indicator for measuring the horizontal movement distance of the measuring head and the vertical dial indicator for measuring the vertical movement distance of the measuring head. Two percentage tables are placed horizontally and vertically, no complicated inclination is arranged, and the positioning of the percentage tables is more accurate. The device has the advantages of simple structure, capability of measuring two data by one set, cost reduction and accurate measurement.
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 diagram of a prior art gauge for measuring bond teeth;
FIG. 2 is a schematic view of a structure of a prior art probe contacting with a bonding tooth, wherein FIG. 2a is an ideal state, FIG. 2b is an offset state, FIG. 2c is a bonding tooth height state, and FIG. 2d is an angle influencing state;
FIG. 3 is a schematic view of a tooth cover structure;
FIG. 4 is a schematic view of a partial enlarged construction of a tooth sleeve;
FIG. 5 is a schematic diagram of a three-dimensional structure of the gauge according to the present invention;
FIG. 6 is a schematic cross-sectional view of the gauge according to the present invention; ;
FIG. 7 is a schematic view of a sliding component according to the present invention;
FIG. 8 is a schematic view of a partially enlarged structure of FIG. 6;
FIG. 9 is a schematic side view of a lower positioning base plate according to the present invention;
FIG. 10 is a schematic top view of the inspection tool according to the present invention;
FIG. 11 is a schematic top view of an upper positioning seat plate according to the present invention;
FIG. 12 is a schematic front view of a movable positioning block according to the present invention;
FIG. 13 is a schematic top view of a movable positioning block according to the present invention;
FIG. 14 is a schematic view of a probe structure provided by the present invention;
FIG. 15 is a schematic diagram of an assembly structure of a measuring head and a vertical sliding table provided by the invention;
FIG. 16 is a schematic perspective view of a measuring head according to the present invention;
FIG. 17 is a schematic view of another perspective structure of the gauge according to the present invention;
FIG. 18 is a schematic view of a first position of the present invention;
FIG. 19 is a schematic view of a partially enlarged construction of FIG. 18;
FIG. 20 is a schematic view of an involute tooth profile of a tooth casing;
Fig. 21 is a schematic view of the structure of the coupling teeth of the tooth cover.
Reference numerals illustrate:
A base; 2.a riser part; 4. a sliding member;
21. A slide bar; 22. a vertical plate; 23. a horizontal plate; 24. a first inclined surface; 25. a second inclined surface; 26. a support shaft; 27. a turnover shaft; 29. a handle;
30. Measuring head; 31. a horizontal dial indicator; 32. a vertical dial indicator; 311. a horizontal measuring rod; 321. a vertical measuring rod;
301. an inclined surface; 302. a step surface;
41. a vertical sliding table; 42. a transverse sliding table;
50. A movable positioning block; 51. an upper positioning seat plate; 52. a lower positioning seat plate; 54. a jackscrew seat; 55. a jackscrew; 56. a spring; 57. a spring ejector rod; 501. positioning teeth; 502. a cylindrical surface; 503. a protruding end; 511. a through hole;
60. positioning an inner wall seat; 61. adjusting the screw sleeve; 62. a second spring;
70. A limit screw;
100. An inner face; 101. the top edge of the bonding tooth; 102. an angle surface; 103. and outside.
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 21, a gauge for measuring symmetry and height of a bonding tooth according to a first embodiment of the present invention includes:
A base 1;
The vertical plate component 2 is fixedly connected with the base 1, and is integrated with the measuring head component;
the measuring head part comprises a measuring head 30 which is axially arranged along the tooth sleeve and is positioned above the tooth sleeve, a horizontally placed horizontal dial indicator 31 for measuring symmetry and a vertically placed vertical dial indicator 32 for measuring height;
A sliding member 4 integrated with the riser member 2; the measuring head 30 drives the vertical measuring rod 321 of the vertical dial indicator 32 to vertically reciprocate and drives the horizontal measuring rod 311 of the horizontal dial indicator 31 to horizontally reciprocate through the sliding part 4;
The fixed part is fixedly connected with the base 1 and is provided with a cylindrical surface sleeved and positioned with the tooth sleeve, and the cylindrical surface is perpendicular to the base 1.
As shown in fig. 5-8 and fig. 10, specifically, the height direction of the gauge is Z direction, the parallel direction of the symmetry planes of the two measured bonding teeth is X direction, and the normal direction of the symmetry planes of the two measured bonding teeth is Y direction. The base 1 supports the gauge, and the vertical plate component 2 comprises a 7-shaped frame formed by a horizontal plate 23 and a vertical plate 22, and supports the gauge head component and the sliding component 4.
The free end of the horizontal plate 23 is fixed with the sliding member 4.
As shown in fig. 7, the sliding member 4 is preferably a cross-rail type sliding table, which is a common standard component for machinery, and its model is preferably: the optical fine adjustment sliding table of the XY-axis two-dimensional linear cross guide rail of the model LD-4047-C1 under the brand of a central fine machine is adopted by the LY-40 RXY-axis national standard or the industry standard. The sliding table is generally divided into three plates as a whole, wherein the first layer is a vertical sliding table 41, and the middle sliding table 42 slides along the Z direction relative to the middle sliding table 42, the middle sliding table 42 is fixedly connected with the vertical sliding table 41 along the X direction of the checking fixture, and can slide along the Y direction of the checking fixture relative to the third layer plate, and the middle sliding table 42 is vertically and fixedly connected with the third layer plate. The horizontal sliding table 42 and the vertical sliding table 41 are elastic, and can be restored to the initial positions.
The cross guide type sliding table is provided with a vertical sliding table 41 which can elastically move in the vertical direction and along the Z direction of the height of the gauge. When the height of the bonding teeth of the measuring head 30 is changed and the Z-direction displacement exists, the vertical sliding table 41 tightly presses the measuring head 30 to the bonding teeth due to the elasticity of the vertical sliding table in the Z-direction. The top surface of the vertical sliding table 41 is contacted with a vertical measuring rod 321 of the vertical dial indicator 32; the vertical displacement change of the gauge head 30 can be transmitted to the vertical dial gauge 32 by the movement of the vertical sliding table 41. Similarly, the side of the traverse table 42 in the Y direction abuts the horizontal measuring bar 311. The change in the lateral displacement of the gauge head 30 can be transmitted to the level dial gauge 31 by the movement of the traverse table 42.
The measuring head 30 is fixedly connected with the standard mounting hole site of the sliding table by a screw, and the third layer plate of the sliding table is fixedly connected with the horizontal plate 23 by a screw through the standard mounting hole site of the sliding table.
The connection of the horizontal dial gauge 31, the vertical dial gauge 32 and the riser part 2 is common knowledge of a person skilled in the art and is not described here.
During measurement, the measuring head 30 is manually lifted to position the combining teeth, and the displacement change of the measuring head 30 is transmitted to the corresponding dial indicator.
Embodiment two: the embodiment discloses a measuring head.
A tooth cover as shown in fig. 3-4, the combination tooth comprises an inner face 100, an outer face 103 and a bilaterally symmetrical angle face 102, the formed edges of the two angle faces 102 are the top edge 101 of the combination tooth, and a certain gap is formed between the combination tooth and the tooth cover in the radial direction. The inner face 100 and the outer face 103 are disposed opposite the cylindrical face of the sleeve. Typically, the angle between the two angular surfaces 102 is 90 °, 120 °, etc.
As shown in fig. 14-16, the measuring head 30 of the embodiment is in a long plate shape, and is provided with a step surface 302 extending horizontally for being clamped with the bottom surface of the vertical sliding table 41 in the Z direction, so that when the measuring head 30 moves upwards, the accurate upward movement of the vertical sliding table 41 is ensured to be driven.
The measuring head 30 is placed perpendicular to the end face of the tooth cover, and the measuring head 30 is of a symmetrical structure because of measuring symmetry. The whole measuring part below the measuring part is approximately isosceles symmetrical triangle, and the vertex angle is below.
Since the edge 101 of the top edge of the bonding tooth formed by the two angle surfaces 102 is not on the horizontal line, the phenomenon that one end of the radial direction is higher and the other end is lower occurs, and the measuring points of the tooth sleeve for measuring the symmetry and the height dimension of the bonding tooth are two points with the same width of 1.5mm on the two angle surfaces 102 forming the bonding tooth, wherein the measuring points are defined by the tooth sleeve in most of the measuring points. So a through groove with the width of 1.5mm is arranged in the middle of the measuring head, and the direction of the through groove is along the radial direction of the tooth sleeve. Each through groove side wall extends outwards to form an inclined surface 301, and the two opposite inclined surfaces 301 are in an inverted-V shape and are opposite, but the angle a is larger than the included angle between the two angle surfaces 102. And the sides formed by the two inclined surfaces 301 and the through grooves are in the horizontal direction, so as to realize point-to-point contact with the corresponding angle surfaces 102. Preferably, the angle between two opposing inclined surfaces 301 is 122 ° and the angle between the angled surfaces 102 is 120 °. The drawing of the tooth sleeve product requires the symmetry degree of the center plane of two points of the ideal size of 1.5mm on the two angle planes of the combination tooth and the involute tooth and the height size from the combination tooth to the other end surface of the tooth sleeve. The measuring head and the combining teeth are in point-to-point contact, and the specific principle and structure can participate in the measurement of the measuring tool and the standard of the measuring tool known in the field as a gear measuring machine or three coordinates. In addition, the ball measuring head structure of the equipment can be referred to, so that the point-to-point contact between the measuring head and the combining teeth is realized. It will also be appreciated by those skilled in the art that the length of the probe 30 in the radial direction of the sleeve is not too long, reducing the impact of point-to-point contact and avoiding interference with the sleeve.
Under the action of the spring force of the bidirectional sliding table provided by the sliding part 4, the measuring head can be stabilized only if two measuring points touch two angle surfaces of the combining teeth at the same time, the point corresponding to the calibration piece and the point corresponding to the tooth sleeve are symmetrical in the transverse change of the bidirectional sliding table and high in the longitudinal change of the bidirectional sliding table,
The positioning teeth 501 have a contour that is substantially the same as the contour of the inner wall of the involute teeth in the radial direction, and position the involute teeth to be measured. The positioning method of the involute teeth is common knowledge of an involute tooth testing tool, and will not be described in detail here. The gauge head 30 is positioned on the corresponding mating tooth face of the positioning tooth 501 and is 1.5mm wide and equal in height, with the degree of symmetry being that of the mating tooth relative to the involute tooth.
The distance deviation of the center plane of the two measuring points and the center plane of the tooth sleeve, namely the center plane of the involute tooth of the tooth sleeve corresponding to the combined tooth is doubled to obtain a symmetry value, the distance from the two equal-height points to the other end surface of the tooth sleeve is the height dimension, and the measuring head consists of a body and a measuring point.
Embodiment III: the embodiment adds a specific positioning method for the tooth sleeve on the basis of the two embodiments.
The fixed part includes from the top down: the positioning inner wall seat 60, the movable positioning block 50, the upper positioning base 51 and the lower positioning base 52 fixedly connected with the base 1. As shown in fig. 9 and 11, the upper surface of the lower positioning base 52 is provided with an X-direction chute, which is schematically a square hole. The upper positioning base 51 is provided with a through hole 511 at a corresponding position, and the upper positioning base 51 is illustratively a circular plate and is fixedly connected with the lower positioning base 52 through mechanical common connecting pieces such as screws. The upper part of the positioning inner wall seat 60 is a circular plate, and is exposed on the upper surface of the upper positioning base 51. The upper surface of the upper positioning base 51 is provided with a tooth sleeve, and the tooth sleeve and the cylindrical surface of the positioning inner wall seat 60 are sleeved and positioned by the person skilled in the art. The lower part of the positioning inner wall seat 60 is a square plate, and after passing through the through hole 511, the positioning inner wall seat is mechanically connected with the lower positioning base 52 through common parts such as screws.
As shown in fig. 12 to 13, the lower portion of the movable positioning block 50 is square plate-shaped, that is, a slider which is fitted with a slide groove of the lower positioning base 52. The movable positioning block 50 and the lower positioning base 52 are radially and slidably connected through a structure of a sliding block and a sliding groove, and the sliding direction passes through the center of the tooth sleeve. The middle part of the movable positioning block 50 passes through the through hole 511 and has a gap with the through hole 511 to provide a horizontal sliding space of the movable positioning block 50. The upper part, namely the extension end, of the movable positioning block 50 extends out of the cylindrical side surface of the positioning inner wall seat 60 and is provided with positioning teeth 501 matched with the shape of the inner wall surface of the tooth sleeve; the positioning inner wall seat 60 is used for positioning the cylindrical portion, and a part of the cylindrical surface needs to be cut from below to provide a movable space for the movable positioning block 50. The outer surface of the extending end of the movable positioning block 50 is provided with a partial cylindrical surface 502, and positioning teeth 501 extending radially outwards of the cylindrical surface 502 are arranged above the cylindrical surface 502.
A horizontal through hole is formed in the upper positioning base 51 and corresponds to the lower portion of the movable positioning block 50, and is used for placing a spring 56, one end of the spring 56 is fixedly connected with the lower positioning base 52, and the other end of the spring 56 abuts against the movable positioning block 50. The length change of the spring 56 can drive the movable positioning block 50 to horizontally move so as to drive the positioning teeth 501 to be close to or far away from the inner wall of the tooth sleeve.
Preferably, one end of the lower positioning base 52 away from the movable positioning block 50 is fixedly connected with a jackscrew seat 54, the jackscrew seat 54 is fixedly connected with a jackscrew 55, and a part of the jackscrew 55 is exposed outside the jackscrew seat 54, so that the jackscrew 55 can be adjusted manually. The movable positioning block 50 is fixed with a spring ejector rod 57 at one end close to the jackscrew seat 54, and the spring 56 is abutted between the jackscrew 55 and the spring ejector rod 57.
Preferably, a protruding end 503 is provided at one end of the lower portion of the movable positioning block 50 away from the spring 56, and protrudes out of the through groove of the lower positioning base 52.
Preferably, the lower part of the vertical plate member 2 is provided with a through hole in which the slide rod 21 is sleeved. The slide rod 21 and the through hole are engaged with each other to perform an X-direction slide connection. The driving end of the sliding rod 21 can contact with the corresponding position of the movable positioning block 50 and drive the positioning teeth 501 to be separated from the inner wall of the tooth sleeve. When not measured, the power end of the sliding rod 21 and the end far away from the tooth sleeve are exposed outside the vertical plate 22, so that external force is conveniently applied to drive the sliding rod 21.
When the initial position is not measured, the positioning teeth 501 protrude from the cylindrical surface of the positioning inner wall seat 60; when measurement is needed, the push protruding end 503 or the sliding rod 21 is manually pushed to compress the spring 56, and the positioning teeth 501 extend back into the cylindrical surface of the positioning inner wall seat 60; after the tooth sleeve is sleeved, the positioning teeth 501 extend into the internal teeth of the tooth sleeve under the action of the spring to tightly prop up the tooth sleeve in the horizontal direction under the action of the spring, so that the tooth sleeve can be accurately positioned. The principle of removing the gear sleeve is similar and will not be described in detail here.
Further preferably, as shown in fig. 6 and 18, the horizontal plate 23 and the vertical plate 22 are rotatably connected by a mechanically common connecting member such as a turning shaft 27, and the vertical plate 22 is fixedly connected with the base 1;
The horizontal plate 23 is provided with a first inclined surface 24 at one end rotating with the vertical plate 22, and the first inclined surface 24 can contact with the power end of the sliding rod 21 when the horizontal plate 23 rotates, and push the sliding rod 21 exposed outside the vertical plate 22 to the tooth sleeve along with the continuous rotation of the horizontal plate 23, so that the movable positioning block 50 is pushed.
The vertical plate 22 is provided with a second inclined surface 25 which is matched with the first inclined surface 24 at a corresponding position, the first inclined surface 24 can be contacted with the second inclined surface 25 when the horizontal plate 23 rotates, and the second inclined surface 25 fixedly limits the horizontal plate 23 at a first position. Limiting through a pair of inclined planes matched with each other is a common limiting means in the mechanical field, and is not described in detail here.
The positioning teeth 501 in the first position are disengaged from the inner wall of the sleeve.
Preferably, the corresponding position of the movable positioning block 50 is provided with a hole matched with the driving end of the sliding rod 21, when the horizontal plate 22 is not turned over, the sliding rod 21 extends into the hole, and the hole and the vertical plate 22 jointly play a role in supporting the sliding rod. The bottom plate of the hole and the undriven slide bar 21 are left with a certain length, which facilitates the X-movement of the slide bar 21.
Preferably, the first inclined surface 24 is inclined at 20 ° to the XY plane, and is provided on the lower surface of the horizontal plate 23, and is formed by cutting off one X-direction bottom edge of the horizontal plate 23.
Preferably, a handle 29 is provided on the horizontal plate 23.
The end of the horizontal plate 23 is fixed with a vertically arranged support shaft 26, and the preferred support shaft 26 is connected with the horizontal plate 23 through threads, and the length of the support shaft 26 can be adjusted by screwing the length of the threads.
When the horizontal plate 23 is turned over to drive the free end of the supporting shaft 26 to prop against the upper surface of the positioning inner wall seat 60, that is, when the horizontal plate 23 is not turned over, the horizontal plate 23 is located at the second position. The spring 56, which is compressed in the first position, returns to its original length.
Embodiment four: in this embodiment, the two contact points of the tooth sleeve are positioned based on the third embodiment, and the fixed connection between the positioning inner wall seat 60 and the lower positioning base 52 is changed to sliding connection.
The positioning inner wall seat 60 is in sliding connection with the movable positioning block 50 and the lower positioning base 52 in the X direction;
The upper positioning base 51 is provided with through holes 511 penetrating in the Z direction and distributed in the X direction. For the positioning inner wall seat 60 to pass through and provide a horizontal movement space for the positioning inner wall seat 60. The lower part of the positioning inner wall seat 60 is a sliding block structure matched with the sliding groove of the lower positioning base 52 in size, so that the sliding connection with the lower positioning base 52 is realized.
An adjusting screw sleeve 61 is sleeved on the outer side of the spring ejector rod 57, a certain gap is reserved between the adjusting screw sleeve 61 and the spring ejector rod 57, and the adjusting screw sleeve 61 is fixedly connected with a positioning inner wall seat 60; a second spring 62 is abutted between the adjusting screw sleeve 61 and the movable positioning block 50.
Preferably, the upper positioning base 51, the movable positioning block 50 and the positioning inner wall seat 60 are respectively provided with a limit screw 70 at the corresponding position in the X direction. The limit screws 70 are axially distributed in the X direction, and the screw ends of the screws 70 can be contacted with the movable positioning blocks 50 and the positioning inner wall seats 60 to limit the movement distance of the movable positioning blocks and the positioning inner wall seats.
The working process and principle are as follows: the through groove of the lower positioning base 52 is internally provided with a positioning inner wall seat 60 and a movable positioning block 50, and the bottoms of the positioning inner wall seat 60 and the movable positioning block 50 are provided with sliding blocks matched with the through groove, so that only the X-direction sliding freedom degree is formed. The adjusting screw sleeve 62 is screwed in the thread of the positioning inner wall seat 60, which controls the separating force of the positioning inner wall seat 60 and the movable positioning block 50,
The end of the spring ejector rod 57 is connected to the movable positioning block 50 in a threaded manner, the jackscrew seat 54 is connected to the lower positioning base 52 in a threaded manner, the jackscrew 55 is fixed to the jackscrew seat 54, the spring 56 is extruded by screwing, the other end of the spring 56 is connected with the spring ejector rod 8, spring force is transmitted to the movable positioning block 50, the movable positioning block 50 transmits the spring force to the measured tooth sleeve measuring tooth, and the positioning inner wall seat 60 positions and supports the tooth sleeve under the action of the spring force of the screwing top of the adjusting screw sleeve 61.
The calibration piece and the tooth sleeve are detached in the detection process of the detection tool, the positioning inner wall seat 60 and the movable positioning block 50 are in a separated state under the action of spring force, at the moment, the calibration piece and the tooth sleeve are not placed at detection positions, when the detection tool is detected, the handle 29 is lifted, the horizontal plate 23 rotates around the overturning shaft 27, the rear end inclined surface of the horizontal plate 23 rotates to a specific angle to collide with the sliding rod 21 and start to push the sliding rod to move forward, the other end of the sliding rod moves to a certain distance to collide with the movable positioning block 50 and push the movable positioning block 50 to move, the movable positioning block 50 moves while compressing two springs to enable the distance between the positioning inner wall seat 60 and the movable positioning block 50 to be reduced, at the moment, the calibration piece and the tooth sleeve can be easily placed in or taken out of the detection position of the detection tool, and the detection position of the detection tool is the position where the positioning inner wall seat 60 collides with the corresponding limit screw 70 and can be regulated. The movable positioning block 50 is pushed to a position where the movable positioning block is in collision with the corresponding limit screw 70 by the spring 56 at the rear end of the spring ejector rod 57 after the horizontal plate 23 is turned back, and meanwhile, the other second spring 62 pushes the positioning inner wall seat 60 to position and support the tooth sleeve.
Measuring head structure: the measuring points for measuring the symmetry and the height of the combined tooth are two points with the width of 1.5mm, namely the width of 1.5mm on two inclined surfaces forming the combined tooth, the two-time deviation of the distance between the center surface of the two points and the center surface of the spline tooth is a symmetry value, the distance between the two points with the same height and the other end surface of the tooth sleeve is the height, and the measuring head consists of a body and a measuring point.
The symmetry value is displayed by the change amount of the transverse moving sliding table during measurement, and the height value is displayed by the change amount of the vertical sliding table.
The horizontal plate 23, the upper surface of the positioning inner wall seat 60 and the supporting shaft 20 form a fixed position during each measurement, and the change value of the two tables after the two tables are zeroed or specified by the measuring calibration piece at the fixed position and the tooth sleeve is replaced is the required measured value.
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 (7)

1. A gauge for measuring the symmetry and height of a bond tooth, comprising:
a base (1);
The vertical plate component (2) is fixedly connected with the base (1), and a measuring head component and a sliding component (4) are integrated on the vertical plate component;
The measuring head component comprises measuring heads (30) which are axially arranged along the tooth sleeve and are positioned above the tooth sleeve, and the measuring heads are connected with a vertical dial indicator (32) and a horizontal dial indicator (31) through one measuring head (30) so as to realize measurement of the combined tooth height and symmetry;
the bottom of the measuring head (30) is provided with two measuring points which are in point-to-point contact with the angle surface (102) of the bonding tooth respectively, and the two measuring points are symmetrically arranged relative to the bonding tooth;
the measuring head (30) is provided with a through groove with the width of 1.5mm along the top edge (101) of the bonding tooth, the side wall surface of the through groove extends outwards to form an inclined surface (301), and the included angle a of the two inclined surfaces (301) is larger than the included angle of the two angle surfaces (102);
The measuring head (30) drives a vertical measuring rod (321) of a vertical dial indicator (32) for measuring the height to perform Z-direction reciprocating motion through the sliding part (4), and drives a horizontal measuring rod (311) of a horizontal dial indicator (31) for measuring the symmetry to perform Y-direction reciprocating motion;
the fixed part is fixedly connected with the base (1) and is provided with a cylindrical surface sleeved and positioned with the tooth sleeve, and the cylindrical surface is perpendicular to the base (1);
The fixing part comprises from top to bottom: a positioning inner wall seat (60), a movable positioning block (50), an upper positioning base (51) and a lower positioning base (52) fixedly connected with the base (1);
The upper surface of the upper positioning base (51) is used for supporting the lower end surface of the tooth sleeve, and the upper positioning base (51) is fixedly connected with the lower positioning base (52);
The positioning inner wall seat (60) is provided with a cylindrical surface for sleeving and positioning the tooth sleeve, and the positioning inner wall seat (60) is connected with the lower positioning base (52);
the movable positioning block (50) is connected with the lower positioning base (52) and the upper positioning base (51) in an X-direction sliding manner;
The movable positioning block (50) penetrates through the lower positioning base (52) and the upper positioning base (51) and then extends out of the cylindrical side surface of the positioning inner wall seat (60);
Positioning teeth (501) matched with the inner wall surface of the tooth sleeve in shape are arranged at the extending end of the movable positioning block (50); the positioning teeth (501) correspond to the positions of the measuring heads (30);
The movable positioning block (50) is driven by a spring (56) placed in the X direction, and can drive the positioning teeth (501) to be close to or far away from the inner wall of the tooth sleeve.
2. The gauge according to claim 1, characterized in that the sliding member (4) is a cross-rail type slide;
the sliding part (4) is provided with a vertical sliding table (41) moving in the Z direction, and the measuring head (30) is arranged between the bottom surface of the vertical sliding table (41) and the tooth sleeve;
The top surface of the vertical sliding table (41) is contacted with a vertical measuring rod (321) of the vertical dial indicator (32);
The vertical displacement change of the measuring head (30) can be transmitted to the vertical dial indicator (32) through the movement of the vertical sliding table (41);
The sliding part (4) is provided with a transverse sliding table (42) moving in the Y direction, and the horizontal measuring rod (311) vertically contacts with the side surface of the transverse sliding table (42);
the change in the transverse displacement of the measuring head (30) can be transmitted to the level dial gauge (31) by the movement of the transverse sliding table (42).
3. The gauge according to claim 1, wherein the lower positioning base (52) is fixedly connected with a jackscrew seat (54), and the jackscrew seat (54) and the positioning teeth (501) are oppositely arranged at two ends of the lower positioning base (52);
the jackscrew seat (54) is fixedly connected with jackscrews (55);
the movable positioning block (50) is fixedly connected with a spring ejector rod (57), and the spring (56) is abutted between the jackscrew (55) and the spring ejector rod (57).
4. A gauge according to claim 3, wherein a sliding rod (21) in sliding connection with the X direction is arranged on the lower part of the vertical plate component (2), and the sliding rod (21) can be contacted with the corresponding position of the movable positioning block (50) and drive the positioning teeth (501) to be separated from the inner wall of the tooth sleeve.
5. The gauge according to claim 4, characterized in that the riser part (2) comprises a riser (22) fixedly connected with the base (1) and a horizontal plate (23) supported above the riser (22);
The horizontal plate (23) is rotationally connected with the vertical plate (22);
The horizontal plate (23) is provided with a first inclined surface (24), and the first inclined surface (24) can be in contact with the power end of the sliding rod (21) when the horizontal plate (23) rotates and drives the sliding rod (21) to push the movable positioning block (50);
The vertical plate (22) is provided with a second inclined surface (25) matched with the first inclined surface (24), and the first inclined surface (24) can be contacted with the second inclined surface (25) when the horizontal plate (23) rotates to fixedly limit the horizontal plate (23) at a first position;
The positioning teeth (501) in the first position are separated from the inner wall of the tooth sleeve;
A supporting shaft (26) which is vertically arranged is fixed at the end part of the horizontal plate (23);
When the horizontal plate (23) is turned over to drive the free end of the supporting shaft (26) to prop against the upper surface of the positioning inner wall seat (60), the horizontal plate (23) is located at a second position.
6. The gauge according to claim 5, characterized in that the positioning inner wall seat (60) is horizontally slidingly connected with the lower positioning base (52) in the X-direction with the movable positioning block (50);
the upper positioning base (51) is provided with a Z-direction through hole (511) for the positioning inner wall seat (60) to pass through and provide a horizontal movement space of the positioning inner wall seat (60);
An adjusting screw sleeve (61) which is movably sleeved on the outer side of the spring ejector rod (57) is fixedly connected below the positioning inner wall seat (60);
a second spring (62) is abutted between the adjusting screw sleeve (61) and the movable positioning block (50).
7. The gauge according to claim 6, wherein the upper positioning base (51) is provided with a limit screw (70) at a position corresponding to the X direction of the movable positioning block (50) and the positioning inner wall seat (60).
CN201911337766.8A 2019-12-23 2019-12-23 Gauge for measuring symmetry and height of combined teeth Active CN113091579B (en)

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