CN113091579A - Gauge for measuring symmetry and height of combined teeth - Google Patents
Gauge for measuring symmetry and height of combined teeth Download PDFInfo
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- CN113091579A CN113091579A CN201911337766.8A CN201911337766A CN113091579A CN 113091579 A CN113091579 A CN 113091579A CN 201911337766 A CN201911337766 A CN 201911337766A CN 113091579 A CN113091579 A CN 113091579A
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- positioning
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- measuring head
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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
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/25—Measuring 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
- G01B5/252—Measuring 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
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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
- G01B5/06—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
- G01B5/061—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness height gauges
Abstract
The invention discloses a gauge for measuring the symmetry and height of a combined tooth, which comprises a base; the vertical plate component is fixedly connected with the base and is integrated with a measuring head component; the measuring head part comprises a measuring head which is arranged along the axial direction of the gear sleeve and is positioned above the gear sleeve; a sliding member integrated with the vertical plate member; the measuring head drives a vertical measuring rod of the vertical dial indicator to perform vertical reciprocating motion and drives a horizontal measuring rod of the horizontal dial indicator to perform horizontal reciprocating motion through the sliding component; and the fixed part is fixedly connected with the base and is provided with a cylindrical surface which is sleeved and positioned with the gear sleeve, and the cylindrical surface is vertical to the base. The invention realizes the measurement of the combination of tooth symmetry and height by arranging the measuring head, the horizontal dial indicator for measuring the horizontal moving distance of the measuring head and the vertical dial indicator for measuring the vertical moving distance of the measuring head. Has the advantages of simple structure and accurate measurement.
Description
Technical Field
The invention relates to the technical field of synchronizers, in particular to a gauge for measuring the symmetry and height of a combined tooth.
Background
As shown in figure 1, this is a home and abroad and now adopts the utensil of examining of measuring combination tooth symmetry, it is the smooth-going performance of derailleur gear shift that the good and bad direct influence of the symmetry of combination tooth and the tooth cover internal spline tooth, high-end derailleur tooth cover symmetry requires at 0.07mm, so the tooth cover combines tooth to detect to be one of the indispensable project of examining, combine tooth to another terminal surface height also must guarantee the project of size in addition, but traditional utensil of examining that detects is unable to detect, can only detect with the gear measuring machine, the traditional design theory of examining that figure 1 shows is: "it is put into a calibration piece and examines a positioning mechanism, this positioning mechanism has the locating shaft can fix a position the aperture of addendum circle, the location gauge head that has the involute tooth that can stretch out and draw back fixes a position internal spline involute tooth and tooth cover terminal surface, adorn two percentage table symmetries on panel turnover mechanism, locating pin and locating shaft location in the panel turnover mechanism constitute unchangeable frame mechanism during the measurement, two percentage table gauge heads of symmetry are just surveying on combining the tooth flank of tooth under this kind of state, zero the percentage table, put into the tooth cover in the same principle, see two percentage table look the value difference and change, then according to combining the tooth angle as: and converting the changes of 120 degrees, 110 degrees, 90 degrees and the like into the symmetry degree of the combined teeth.
As shown in figure 2, the problem that the angle of the combined tooth is different needs to be considered in the current check tool for measuring the symmetry of the combined tooth at home and abroad, for example, 90 degrees is taken as an example, a calibration piece is placed into a check tool dial indicator for zero alignment, a tooth sleeve is placed into the check tool in the same way, and the change of the visual value of the two dial indicators is poor, because the influence factors are many, the absolute values of the two gauges are the same under the condition of only having an offset state, but one gauge is positive and the other gauge is negative, and the actual symmetry of the combined tooth of the two gauges is 2 delta/0.7071. The combination tooth only has high and low state changes, the absolute values of the two tables are the same, the two tables are subtracted, the visual value is a positive value, the subtracted value is 0, and the symmetry degree of the actual combination tooth is 0. The angle influence state is very complicated, the angle can not be measured by the gauge, a common operator can not 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 aiming at the actual measurement value difference of two tables with different combined tooth angles such as 120 degrees. The actual measurement value difference of the two tables at 110 degrees is calculated, and the symmetry degree of the combined tooth is 2 delta/0.574. The traditional checking fixture needs to look at the numerical values of two dial indicators and calculate, and the numerical values are different in the process of dividing according to different tooth angles, so that an operator is not intuitive, and superposition errors in various states are difficult to analyze.
In summary, there is a need for a gauge for measuring symmetry of a combined tooth, which is simple in operation and accurate in measurement.
Disclosure of Invention
The invention aims to provide a gauge with high precision for measuring the symmetry and height of a combined tooth so as to overcome the defects in the technology.
In order to achieve the above purpose, the invention provides the following technical scheme:
the method comprises the following steps: a base;
the vertical plate component is fixedly connected with the base and is integrated with a measuring head component and a sliding component;
the measuring head part comprises a measuring head, a horizontal dial indicator and a vertical dial indicator, wherein the measuring head is arranged along the axial direction of the gear sleeve and is positioned above the gear sleeve;
a sliding member integrated with the riser member; the measuring head drives a vertical measuring rod of the vertical dial indicator to perform vertical reciprocating motion and drives a horizontal measuring rod of the horizontal dial indicator to perform horizontal reciprocating motion through the sliding component;
the bottom of the measuring head is matched with the tooth surface shape of the combined tooth;
and the fixing part is fixedly connected with the base and is provided with a cylindrical surface which is sleeved and positioned with the gear sleeve, and the cylindrical surface is vertical to the base.
In the technical scheme, the gauge provided by the invention realizes simultaneous measurement of tooth symmetry and height by arranging the measuring head, the horizontal dial indicator for measuring the horizontal moving distance of the measuring head and the vertical dial indicator for measuring the vertical moving distance of the measuring head. Two percentage tables are placed horizontally and vertically, no complex inclined arrangement exists, and the positioning of the percentage tables is more accurate. The device has the advantages of simple structure, one set of device for measuring two data, cost reduction and accurate measurement.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a schematic structural view of a prior art gauge for measuring a bonded tooth;
fig. 2 is a schematic structural diagram of a contact structure between a probe and a bonding tooth in the prior art, 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 influence state;
FIG. 3 is a schematic view of a gear sleeve structure;
FIG. 4 is a partially enlarged view of the gear sleeve;
FIG. 5 is a schematic perspective view of a gauge provided in the present invention;
FIG. 6 is a schematic cross-sectional structure view of a gauge provided in the present invention; (ii) a
FIG. 7 is a schematic view of a sliding member according to the present invention;
FIG. 8 is a partially enlarged schematic view 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 a gauge provided in the present invention;
FIG. 11 is a schematic top view of the 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 structural diagram of a probe according to the present invention;
FIG. 15 is a schematic view of an assembly structure of a measuring head and a vertical sliding table according to the present invention;
fig. 16 is a schematic perspective view of a probe according to the present invention;
FIG. 17 is a schematic perspective view of a fixture provided in the present invention;
FIG. 18 is a schematic view of a fixture in a first position according to the present invention;
FIG. 19 is an enlarged partial schematic view of FIG. 18;
FIG. 20 is a schematic view of an involute tooth construction of a gear sleeve;
fig. 21 is a structural diagram of a combined tooth of the gear sleeve.
Description of reference numerals:
1. 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 plane; 25. a second inclined plane; 26. a support shaft; 27. a turning shaft; 29. a handle;
30. a measuring head; 31. a horizontal dial indicator; 32. a vertical dial indicator; 311. a horizontal measuring bar; 321. a vertical measuring bar;
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. carrying out top thread; 56. a spring; 57. a spring ejector rod; 501. positioning teeth; 502. a cylindrical surface; 503. an overhang; 511. a through hole;
60. positioning the inner wall seat; 61. adjusting the threaded sleeve; 62. a second spring;
70. a limit screw;
100. an inner face; 101. combining the top edges of the teeth; 102. an angular surface; 103. and (5) outside.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 21, a first testing fixture for measuring the symmetry and height of a combined tooth provided by the 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 a measuring head component;
the measuring head part comprises a measuring head 30 which is arranged along the axial direction of the gear sleeve and is positioned above the gear sleeve, a horizontally placed horizontal dial indicator 31 for measuring the symmetry degree, and a vertically placed vertical dial indicator 32 for measuring the height;
a slide member 4 integrated with the vertical plate member 2; the measuring head 30 drives the vertical measuring rod 321 of the vertical dial indicator 32 to perform vertical reciprocating motion and drives the horizontal measuring rod 311 of the horizontal dial indicator 31 to perform horizontal reciprocating motion through the sliding part 4;
and the fixed part is fixedly connected with the base 1 and is provided with a cylindrical surface which is sleeved and positioned with the gear sleeve, and the cylindrical surface is vertical to the base 1.
As shown in fig. 5-8 and 10, specifically, the height direction of the checking fixture is the Z direction, the parallel direction of the symmetry planes of the two measured coupling teeth is the X direction, and the normal direction of the symmetry planes of the two measured coupling teeth is the Y direction. The base 1 supports the checking fixture, and the vertical plate part 2 comprises a 7-shaped frame which is formed by a horizontal plate 23 and a vertical plate 22 and supports the measuring head part and the sliding part 4.
The free end of the horizontal plate 23 is fixed with a slide member 4.
As shown in fig. 7, the sliding member 4 is preferably a cross-track type sliding table, which is a standard part commonly used in machinery, and the type of the sliding member is preferably: the adopted optical fine adjustment sliding table is an XY-axis two-dimensional linear cross guide rail optical fine adjustment sliding table of an LD-4047-C1 model under the brand of a central finishing machine or the national standard or the industrial standard of an LY-40RXY axis. The sliding table is generally divided into three plates on the whole, the first layer is a vertical sliding table 41, the middle transverse sliding table 42 slides in the Z direction, the middle transverse sliding table 42 and the middle vertical transverse table 41 are fixedly connected in the X direction of the checking fixture and can slide in the Y direction of the checking fixture relative to the third layer plate, and the middle transverse sliding table 42 and the third layer plate are fixedly connected in the vertical direction. The horizontal sliding table 42 and the vertical horizontal table 41 are both elastic and can be restored to the initial positions.
The cross guide rail 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 checking fixture. When the probe 30 moves in the Z direction due to the change of the height of the coupling teeth, the vertical sliding table 41 tightly presses the probe 30 against the coupling teeth due to the elasticity of the vertical sliding table in the Z direction. The top surface of the vertical sliding table 41 is in contact with the 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 indicator 32 by the movement of the vertical slide table 41. Similarly, the side surface of the lateral sliding table 42 in the Y direction abuts the horizontal measuring bar 311. The lateral displacement change of the gauge head 30 can be transmitted to the horizontal dial indicator 31 by the movement of the lateral slide table 42.
The measuring head 30 is fixedly connected with the standard mounting hole of the sliding table through a screw, and the third layer plate of the sliding table is also fixedly connected with the horizontal plate 23 through a screw at the standard mounting hole of the sliding table.
The connection of the horizontal dial indicator 31 and the vertical dial indicator 32 with the riser part 2 is common knowledge of the person skilled in the art and will not be described here.
During measurement, the measuring head 30 is manually lifted, the combined teeth are positioned, and the displacement change of the measuring head 30 is transmitted to the corresponding dial indicator.
Example two: the present embodiment discloses a probe.
3-4, the coupling tooth of the gear sleeve comprises an inner face 100, an outer face 103 and angle faces 102 which are symmetrical left and right, the edge formed by the two angle faces 102 is a coupling tooth top edge 101, and a certain gap is formed between the coupling tooth and the gear sleeve in the radial direction. The inner face 100 and the outer face 103 are disposed opposite the cylindrical surface of the gear sleeve. Typically, the angle between the two angled surfaces 102 is 90 °, 120 °, etc.
As shown in fig. 14-16, the measuring head 30 of the present embodiment has a long plate shape, and a step surface 302 extending horizontally is provided thereon for engaging with the bottom surface of the vertical sliding table 41 in the Z direction, so that when the measuring head 30 moves upward, the vertical sliding table 41 is driven to move upward accurately.
The measuring head 30 is arranged perpendicular to the end face of the gear sleeve, and the measuring head 30 is of a symmetrical structure due to the fact that the symmetry degree needs to be measured. The whole measuring part below the measuring part is roughly in an isosceles symmetrical triangle, and the vertex angle of the measuring part is below the measuring part.
The edges of the top edge 101 of the coupling tooth formed by the two angular surfaces 102 are not on a horizontal line, so that the phenomenon that one end is higher and the other end is lower in the radial direction occurs, and the two points of the tooth sleeve, which are used for measuring the symmetry and height dimension of the coupling tooth, are two points with the same height, namely the width L is 1.5mm, namely the width is 1.5mm on the two angular surfaces 102 forming the coupling tooth. Therefore, 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 arranged along the radial direction of the gear sleeve. Each through groove side wall extends outwards to form an inclined surface 301, and two opposite inclined surfaces 301 are opposite in a splay shape, but the angle a is larger than the included angle between the two angle surfaces 102. And the two inclined surfaces 301 are horizontally oriented with the sides formed by the through slots for point-to-point contact with the corresponding angled surfaces 102. Preferably, the angle between the two opposing inclined surfaces 301 is 122 °, while the angle between the angled surfaces 102 is 120 °. The drawing requirements of the gear sleeve product are the symmetry of two point center planes with ideal sizes of 1.5mm on two angle planes of the combined gear and the involute gear and the height size from the combined gear to the other end face of the gear sleeve. The measuring head and the combined teeth are in point-to-point contact, and the specific principle and structure can be used for measuring the gear measuring machine as a measuring target or a three-coordinate measuring machine by using a gauge known in the field. In addition, the point-to-point contact of the measuring head and the combined teeth can be realized by referring to the ball measuring head structure of the equipment. It should also be appreciated by those skilled in the art that the length of the probe 30 in the radial direction of the gear sleeve should not be too long, so as to reduce the influence on the point-to-point contact and avoid interference with the gear sleeve.
The measuring head can be stabilized only by two measuring points simultaneously touching two angle surface measuring heads of the combined tooth under the action of the bidirectional sliding table spring force provided by the sliding part 4, the point of the corresponding calibrating part and the point of the tooth sleeve are symmetrical in the case of the variation of the bidirectional sliding table, and the longitudinal variation is the height,
the profile of the positioning teeth 501 is substantially the same as the profile of the inner wall surface of the involute teeth in the radial direction, and the involute teeth to be measured are positioned. The positioning method of the involute teeth is common knowledge of involute tooth checking tools, and is not described in detail herein. The gauge head 30 is positioned on the engaging tooth surface corresponding to the positioning tooth 501 and is two points of 1.5mm width and height, and the symmetry is with respect to the involute tooth.
The distance deviation of two measuring point central planes and the gear sleeve central plane, namely the gear sleeve involute gear central plane corresponding to the combined gear is doubled to be a symmetry value, the distance from two points with equal height to the other end face of the gear sleeve is a height dimension, and the measuring head consists of a body and a measuring point.
Example three: the embodiment adds a specific positioning method for the gear sleeve on the basis of the two embodiments.
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. As shown in fig. 9 and 11, an X-direction sliding groove, which is a square hole schematically, is formed on the upper surface of the lower positioning base 52. The upper positioning base 51 is provided with a through hole 511 at a corresponding position, and the upper positioning base 51 is a circular plate schematically and fixedly connected with the lower positioning base 52 through a common mechanical connector such as a screw. The upper part of the positioning inner wall base 60 is a circular plate exposed on the upper surface of the upper positioning base 51. The upper surface of the upper positioning base 51 is provided with a gear sleeve, and the gear sleeve and the cylindrical surface of the positioning inner wall seat 60 are positioned by using a sleeve joint known by the person skilled in the art. The lower part of the positioning inner wall base 60 is a square plate, and after penetrating through the through hole 511, the positioning inner wall base is mechanically connected with the lower positioning base 52 through common parts such as screws and the like.
As shown in fig. 12-13, the lower portion of the movable positioning block 50 is a square plate, i.e. a sliding block that is engaged with the sliding slot of the lower positioning base 52. The movable positioning block 50 and the lower positioning base 52 are in radial sliding connection through a structure of a sliding block and a sliding groove, and the sliding direction passes through the center of the gear sleeve. The middle portion of the movable positioning block 50 passes through the through hole 511, and has a gap with the through hole 511, providing a horizontal sliding space for the movable positioning block 50. The upper part, namely the extending end, of the movable positioning block 50 extends out from 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 gear sleeve; the cylindrical portion of the inner wall 60 that is used to position the inner wall needs to be cut away from the bottom to provide space for the movable positioning block 50. The outer surface of the protruding end of the movable positioning block 50 is provided with a partial cylindrical surface 502, and a positioning tooth 501 extending to the radial outer side of the cylindrical surface 502 is arranged above the cylindrical surface 502.
A horizontal through hole is formed in the position, corresponding to the lower portion of the movable positioning block 50, of the upper positioning base 51 and 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 is abutted to the movable positioning block 50. The length change of the spring 56 can drive the movable positioning block 50 to move horizontally so as to drive the positioning teeth 501 to approach or depart from the inner wall of the gear sleeve.
Preferably, one end of the lower positioning base 52, which is far 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 out of the jackscrew seat 54, so that the jackscrew 55 can be conveniently adjusted manually. A spring push rod 57 is fixed to the movable positioning block 50 at one end close to the jack screw seat 54, and a spring 56 abuts between the jack screw 55 and the spring push rod 57.
Preferably, a protruding end 503 is disposed at an end of the lower portion of the movable positioning block 50 away from the spring 56, and extends out of the through slot of the lower positioning base 52.
Preferably, the lower part of the vertical plate part 2 is provided with a through hole, and a sliding rod 21 is sleeved in the through hole. The sliding rod 21 and the through hole are matched with each other to perform X-direction sliding 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 gear sleeve. When not measuring, the power end of the sliding rod 21 and the end far away from the gear sleeve are exposed outside the vertical plate 22, so that external force can be applied to drive the sliding rod 21.
When the initial position is not measured, the positioning teeth 501 protrude out of the cylindrical surface of the positioning inner wall seat 60; when measurement is needed, the protruding end 503 or the sliding rod 21 is pushed manually 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 gear sleeve is sleeved, the positioning teeth 501 extend into the inner teeth of the gear sleeve under the action of the spring to tightly push the gear sleeve in the horizontal direction under the action of the spring, so that the gear sleeve is accurately positioned. The principle of removing the tooth socket 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 common mechanical connector 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 be contacted with the power end of the sliding rod 21 when the horizontal plate 23 rotates, and pushes the sliding rod 21 exposed outside the vertical plate 22 to the gear sleeve along with the continuous rotation of the horizontal plate 23, so as 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 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 horizontal plate 23 is fixed and limited at the first position by the second inclined surface 25. The limit by a pair of matching inclined surfaces is a common limit 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 gear sleeve.
Preferably, a hole matched with the driving end of the sliding rod 21 is formed in the corresponding position of the movable positioning block 50, 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 to facilitate the X-direction movement of the slide bar 21.
Preferably, the first inclined surface 24 is inclined at 20 ° to the XY plane, 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.
A support shaft 26 is fixed to the end of the horizontal plate 23, and the support shaft 26 is preferably connected to the horizontal plate 23 by a screw, and the length of the support shaft 26 can be adjusted by tightening the length of the screw.
When the horizontal plate 23 is turned over to drive the free end of the supporting shaft 26 to abut 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 compressed in the first position returns to the original length.
Example four: in the embodiment, two contact points of the gear sleeve are positioned on the basis of the third embodiment, and the fixed connection between the positioning inner wall seat 60 and the lower positioning base 52 is changed into sliding connection.
The positioning inner wall seat 60 and the movable positioning block 50 are connected with the lower positioning base 52 in the X direction in a sliding manner;
the upper positioning base 51 is provided with through holes 511 penetrating in the Z direction and distributed along the X direction. For the positioning of the inner wall mount 60 therethrough and for the horizontal movement of the positioning of the inner wall mount 60. The lower part of the positioning inner wall seat 60 is a sliding block structure which is 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 threaded sleeve 61 is sleeved on the outer side of the spring ejector rod 57, a certain gap is formed between the adjusting threaded sleeve 61 and the spring ejector rod 57, and the adjusting threaded sleeve 61 is fixedly connected with the positioning inner wall seat 60; a second spring 62 is connected between the adjusting screw sleeve 61 and the movable positioning block 50 in an abutting manner.
Preferably, the upper positioning base 51, the movable positioning block 50 and the positioning inner wall base 60 are respectively provided with a limiting screw 70 at the corresponding position in the X direction. The limiting screws 70 are axially distributed in the X direction, and the screw rod ends of the screws 70 can be in contact with the movable positioning block 50 and the positioning inner wall seat 60 to limit the movement distance of the movable positioning block 50 and the positioning inner wall seat.
The working process and principle of the device are as follows: the lower positioning base 52 is provided with a positioning inner wall seat 60 and a movable positioning block 50 in the through groove, 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 to form only X-direction sliding freedom. The adjusting screw sleeve 62 is screwed in the thread of the positioning inner wall base 60 and controls the separating force of the positioning inner wall base 60 and the movable positioning block 50,
the end part of the spring ejector rod 57 is in threaded connection with the movable positioning block 50, the jackscrew seat 54 is in threaded fastening connection with the lower positioning base 52, the jackscrew 55 is fixed on 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, the spring force is transmitted to the movable positioning block 50, the movable positioning block 50 transmits the spring force to the measured gear sleeve measuring tooth, and the positioning inner wall seat 60 positions and supports the gear sleeve under the spring force action of the screwing top of the adjusting screw sleeve 61.
When the checking tool is detected, the handle 29 is lifted, the horizontal plate 23 rotates around the turnover shaft 27, the inclined plane at the rear end of the horizontal plate 23 rotates to a specific angle, the inclined plane collides with the sliding rod 21 and starts to push the sliding rod to move forwards, 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 to move, the movable positioning block 50 moves and compresses two springs to reduce the distance between the positioning inner wall seat 60 and the movable positioning block 50, the calibrating element and the toothed sleeve can be easily put into or taken out of the checking tool detection position, and the checking tool detection position is the position where the positioning inner wall seat 60 collides with the corresponding limiting screw 70 and can be regulated and controlled. The horizontal plate 23 is turned back, the spring 56 at the rear end of the spring top rod 57 pushes the movable positioning block 50 to the position where the movable positioning block collides with the corresponding limiting screw 70, and meanwhile, the other second spring 62 pushes the positioning inner wall seat 60 to position and support the gear sleeve.
The structure of the measuring head: the most specified measuring points for measuring the symmetry and height of the combined tooth are two points with the width of 1.5mm, namely the height of the two points with the width of 1.5mm on the two inclined planes forming the combined tooth, the deviation of the distance between the central plane of the two points and the central plane of the spline tooth is doubled to be a symmetry value, the distance between the two points with the height and the other end surface of the tooth sleeve is a height dimension, and the measuring head consists of a body and a measuring point.
When measuring, the variable quantity of the transverse moving sliding table is displayed as a symmetry value, and the variable quantity of the vertical sliding table is displayed as a height value.
In each measurement, the horizontal plate 23, the upper surface of the positioning inner wall seat 60 and the supporting shaft 20 form a fixed position, the measuring calibration piece returns the two tables to zero or a specified value in the fixed position, and the change value of the two tables after the gear 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 the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (10)
1. The utility model provides a measure utensil of examining that combines tooth symmetry and height which characterized in that includes:
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 part comprises a measuring head (30) which is arranged along the axial direction of the gear sleeve and is positioned above the gear sleeve;
the bottom of the measuring head (30) is provided with two measuring points which are respectively in point-to-point contact with the angle surface (102) of the combination tooth, and the two measuring points are symmetrically arranged relative to the combination tooth;
the measuring head (30) drives a vertical measuring rod (321) of a vertical dial indicator (32) for measuring height to reciprocate in the Z direction through the sliding component (4), and drives a horizontal measuring rod (311) of a horizontal dial indicator (31) for measuring symmetry to reciprocate in the Y direction;
the fixing component is fixedly connected with the base (1) and is provided with a cylindrical surface which is sleeved and positioned with the gear sleeve, and the cylindrical surface is perpendicular to the base (1).
2. A gauge according to claim 1, characterized in that the sliding part (4) is a cross-track type slide;
the sliding component (4) is provided with a vertical sliding table (41) which moves in the Z direction, and the measuring head (30) is arranged between the bottom surface of the vertical sliding table (41) and the gear sleeve;
the top surface of the vertical sliding table (41) is in contact 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 motion 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) is vertically contacted with the side surface of the transverse sliding table (42);
the transverse displacement change of the measuring head (30) can be transmitted to the horizontal dial indicator (31) through the movement of the transverse sliding table (42).
3. The testing fixture according to claim 1, characterized in that the measuring head (30) is provided with a through groove with a width of 1.5mm along the direction of the top edge (101) of the combined tooth, the side wall of the through groove extends outwards to form an inclined surface (301), and the included angle a between the two inclined surfaces (301) is larger than the included angle between the two angle surfaces (102).
4. The fixture of claim 1, wherein the fixture member 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 face of the gear 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 gear 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 face of the positioning inner wall seat (60);
the extending end of the movable positioning block (50) is provided with a positioning tooth (501) matched with the shape of the inner wall surface of the tooth sleeve; the positioning teeth (501) correspond to the measuring head (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 gear sleeve.
5. The testing fixture of claim 4, characterized in that 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 a jackscrew (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).
6. The detection tool according to claim 5, wherein a sliding rod (21) in sliding connection in the X direction is arranged at the lower part of the vertical plate part (2) in a penetrating manner, and the sliding rod (21) can be in contact with the corresponding position of the movable positioning block (50) and drives the positioning teeth (501) to be separated from the inner wall of the gear sleeve.
7. The detection tool according to claim 6, wherein the vertical plate part (2) comprises a vertical plate (22) fixedly connected with the base (1) and a horizontal plate (23) supported above the vertical plate (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 contacted 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 in contact with the second inclined surface (25) when the horizontal plate (23) rotates so as to fix and 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 gear 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) overturns 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.
8. The testing fixture of claim 7, wherein the positioning inner wall seat (60) and the movable positioning block (50) are horizontally slidably connected with the lower positioning base (52) in the X direction;
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 providing a horizontal movement space for the positioning inner wall seat (60);
an adjusting threaded sleeve (61) 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 connected between the adjusting threaded sleeve (61) and the movable positioning block (50) in a propping manner.
9. The testing fixture of claim 8, wherein the upper positioning base (51) is provided with a limiting screw (70) at a position corresponding to the movable positioning block (50) and the positioning inner wall seat (60) in the X direction.
10. The checking fixture according to claim 1, characterized in that the checking fixture is connected with a vertical dial indicator (32) and a horizontal dial indicator (31) through one measuring head (30) for measuring the height and symmetry of the combined tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911337766.8A CN113091579A (en) | 2019-12-23 | 2019-12-23 | Gauge for measuring symmetry and height of combined teeth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911337766.8A CN113091579A (en) | 2019-12-23 | 2019-12-23 | Gauge for measuring symmetry and height of combined teeth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113091579A true CN113091579A (en) | 2021-07-09 |
Family
ID=76662840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911337766.8A Pending CN113091579A (en) | 2019-12-23 | 2019-12-23 | Gauge for measuring symmetry and height of combined teeth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113091579A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116734706A (en) * | 2023-08-08 | 2023-09-12 | 长春汽车工业高等专科学校 | Gauge for measuring angle of combined teeth of synchronizer |
-
2019
- 2019-12-23 CN CN201911337766.8A patent/CN113091579A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116734706A (en) * | 2023-08-08 | 2023-09-12 | 长春汽车工业高等专科学校 | Gauge for measuring angle of combined teeth of synchronizer |
| CN116734706B (en) * | 2023-08-08 | 2023-10-27 | 长春汽车工业高等专科学校 | Gauge for measuring angle of combined teeth of synchronizer |
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