CN219810431U - Gauge for measuring included angle between upper plane of shift fork shaft of gearbox and pin hole on shaft - Google Patents

Abstract

The utility model relates to a gauge for measuring an included angle between a plane on a shifting fork shaft of a gearbox and a pin hole on the shaft, and belongs to the technical field of detection of automobile parts. The device comprises a bearing platform, a positioning device, at least two groups of clamping devices and a measuring device, wherein the devices are distributed on the bearing platform at intervals, the bearing platform is provided with a horizontal working surface, the clamping devices are respectively clamped on the left side and the right side of a shaft lever body of a shifting fork, the positioning of the shifting fork shaft by an angle formed by the axes of pin holes on the shaft and the horizontal working surface of the bearing platform is realized through the cooperation of the positioning device and the clamping devices, the shifting fork shaft is clamped by the clamping devices when positioned, the measuring device is used for measuring the angle value formed by the plane on the shaft and the horizontal working surface of the bearing platform when the measuring device is kept concentric with the plane on the shaft, and the positioning angle of the shifting fork shaft is added to be the angle value between the plane on the shaft and the pin holes on the shaft. The gauge has the advantages of low assembly requirement, simplicity and convenience, simple measurement steps, small error, lower cost and obvious convenience and universality.

Description

Gauge for measuring included angle between upper plane of shift fork shaft of gearbox and pin hole on shaft

Technical Field

The utility model relates to a gauge, in particular to a gauge for measuring an included angle between a plane on a shaft of a shifting fork of a gearbox and a pin hole on the shaft, and belongs to the technical field of automobile part detection.

Background

In the automobile industry, because the requirements of customers on the hand feeling of automobile gear selection and shifting are higher and higher, the precision requirements on gear selection and shifting control parts of a gearbox are also continuously improved. The shifting fork shaft of the automobile gearbox is a key part for selecting and shifting gears, and generally has some angle control requirements, however, the accuracy of the control part of the automobile gearbox is directly influenced by some angle control requirements on the shifting fork shaft, so that for example, the included angles between the plane on the shifting fork shaft and the pin holes on the shaft are not easy to accurately measure and grasp due to the space size. To the best of applicant's knowledge: the traditional shifting fork shaft checking fixture generally relies on a bolt and a plug block to carry out through detection, and can only carry out qualitative detection but can not quantitatively measure specific tolerance data. As the design precision of the shifting fork shaft is higher, the measurement requirement of the included angle between the pin hole axis and the shaft upper plane of some high-precision shifting fork shafts cannot be met through the existing detection; therefore, an inspection tool which can accurately and reliably measure the included angle between the upper plane of the shifting fork shaft and the pin hole on the shaft, accurately detect the tolerance value of a specific included angle and is convenient to operate is needed. The utility model determines the positioning angle value of the pin hole on the shifting fork shaft and the working surface of the measuring device in advance through the positioning device, and then the angle value of the plane on the shifting fork shaft and the pin hole on the shaft can be accurately obtained by adding the angle value of the plane on the shifting fork shaft and the angle value formed by the plane on the shaft and the working surface of the gauge. Compared with the prior art, the method has fewer measurement steps, so that the error probability of the measured value is naturally small, and the accuracy is naturally improved.

Disclosure of Invention

The utility model aims at: aiming at the problems in the prior art, the utility model provides the tool for detecting the included angle between the upper plane of the shaft of the shifting fork shaft of the gearbox and the pin hole on the shaft, which is simple and convenient to assemble, low in cost and few in measuring steps, and can finally improve the precision of the shifting fork shaft.

In order to achieve the purpose, the utility model relates to a gauge for measuring an included angle between an upper plane of a shifting fork shaft of a gearbox and a pin hole on the shaft, which comprises a shifting fork shaft, wherein the end part and the middle part of the shifting fork shaft are correspondingly provided with the upper plane and the pin hole on the shaft; the method is characterized in that: the device comprises a bearing platform, a positioning device, at least two groups of clamping devices and a measuring device, wherein the devices are distributed on the bearing platform at intervals, the bearing platform is provided with a horizontal working surface, the clamping devices are respectively clamped on the left side and the right side of a shaft lever body of a shifting fork, the positioning of the shifting fork shaft at an angle with the horizontal working surface of the bearing platform is realized through the cooperation of the positioning device and the clamping devices of the groups before measurement, the clamping devices of the groups are used for clamping when the shifting fork shaft is positioned, and the measuring device is used for measuring the angle value formed by the horizontal working surface of the bearing platform and the upper plane of the shaft when the measuring device is kept concentric with the upper plane of the shaft.

Furthermore, the shifting fork shaft is positioned at an angle of 50 degrees with the horizontal working surface of the bearing platform by the pin hole axis on the shaft through the positioning device, and the clamping device promotes the positioning of the shifting fork shaft to be stable; after the measuring device measures the angle value formed by the plane on the shaft and the horizontal working surface of the bearing platform, the positioning angle of the shifting fork shaft is increased by 50 degrees, and the sum becomes the included angle value of the plane on the shaft and the pin hole on the shaft.

Further, the positioning device comprises a positioning pin, a positioning pin sleeve and a positioning pin seat, wherein the positioning pin seat is formed by integrally connecting an upper supporting table and a lower supporting column, the supporting table forms 50 degrees with the horizontal working surface of the bearing platform, and the supporting column is vertically and fixedly connected to the horizontal working surface of the bearing platform; the cross section of the positioning pin sleeve is T-shaped, a longitudinal central through hole is formed in the positive T-shaped direction, the longitudinal section of the positive T-shaped positioning pin sleeve is inserted into the central hole of the positioning pin seat supporting table, and meanwhile, the bottom of the transverse section of the positive T-shaped positioning pin sleeve is attached to the positioning pin seat supporting table surface; the locating pin is characterized in that one end of the locating pin is a handheld part, the other end of the locating pin is a locating part, the diameter of the handheld part of the locating pin is larger than that of the through hole of the locating pin sleeve, the handheld part of the locating pin is enabled to be hollowed out of the central through hole of the locating pin sleeve, the middle section of the locating pin is matched with the central through hole of the locating pin sleeve and can freely slide along the axis of the central through hole of the locating pin sleeve, the locating part of the locating pin is spliced with a pin hole on a shaft and forms clearance fit, and the locating of a shifting fork shaft with the axis of the pin hole on the shaft and a horizontal working surface of a bearing platform forming 50 degrees is achieved.

Further, each group of clamping devices comprises a T-shaped base, a quick clamp and a clamp supporting seat, wherein the T-shaped base and the clamp supporting seat in each group of clamping devices are in central opposite positions and are respectively fixedly connected to the bearing platform; the bottom of the T-shaped base is a plane and is fixedly connected to the horizontal working surface of the bearing platform, and the top of the T-shaped base is provided with a V-shaped groove which bears a shifting fork shaft; the clamp supporting seat is a straight quadrangular prism, the quick clamp is fixedly connected to the clamp supporting seat, and the head of the quick clamp presses the shifting fork shaft, so that the shifting fork shaft is pressed in the V-shaped groove of the T-shaped base.

Further, measuring device includes inclinometer, measures seat, calibration platform, and the calibration platform makes its bottom and loading platform horizontal working face laminating link firmly through the bolt, and the last measurement seat of placing of calibration platform is measured and is placed the inclinometer on the seat, and the inclinometer passes through the zero calibration of calibration platform, and zero calibration back inclinometer passes through the measurement seat and rides and carry out the measurement on the epaxial plane.

Furthermore, the measuring seat is of a tenon structure and comprises a platform at one side and two square tenons at the other side, and a peripheral planar rectangular groove is formed between the two square tenons; the cross section of the calibration platform is T-shaped, one side transverse section of the T-shaped calibration platform forms a platform seat and is fixedly connected with the bearing platform, the other side longitudinal section of the T-shaped calibration platform forms a longitudinal rectangular plate, a rectangular groove of the measurement seat is spliced by the longitudinal rectangular plate and forms gapless fit, an inclinometer is placed on the platform of the measurement seat, the inclinometer is attracted with the platform of the measurement seat, zero-angle calibration of the inclinometer is completed through the calibration platform, the zero-angle inclinometer is carried with the measurement seat to be moved on an on-axis plane for measurement, and the inclinometer displays an included angle value formed by the on-axis plane and the horizontal working surface of the bearing platform.

Still further, the inclinometer adopts high accuracy digital display inclinometer, and its bottom surface has magnetism, adsorbs integrative completion measurement work through magnetism and the platform of measuring the seat.

The utility model has the advantages that: the accurate measurement function of the gauge for the included angle between the upper plane of the shaft of the shifting fork of the gearbox and the pin hole on the shaft can be realized by using a gauge with very low manufacturing cost. The detection tool has the advantages of higher measurement precision, small error, rapidness, reliability and simple and convenient operation, can effectively control the quality of the shifting fork shaft part, and utilizes detection data statistics to carry out assembly quality analysis and part quality early warning. Thus, compared with the prior art, it can be seen that: the mechanism on the gauge has low assembly requirement, simplicity, simple measurement steps, small error and lower cost.

Drawings

The utility model is further described below with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of a fork shaft structure of the present utility model.

FIG. 2 is a schematic diagram of the whole structure of the gauge when the utility model is not measuring.

FIG. 3 is a schematic view of the locating pin of the present utility model.

Fig. 4 is a schematic view of the positioning pin sleeve of the present utility model.

FIG. 5 is a schematic view of the dowel seat of the present utility model.

FIG. 6 is a schematic view of a positioning device according to the present utility model.

FIG. 7 is a schematic view of a T-shaped base of the present utility model.

Fig. 8 is a schematic view of the quick clamp of the utility model.

Fig. 9 is a schematic view of the clamp support of the utility model.

Fig. 10 is a schematic view of the structure of the clamping device of the present utility model.

FIG. 11 is a schematic diagram of the inclinometer of the present utility model.

FIG. 12 is a schematic view of the measuring seat of the present utility model.

FIG. 13 is a schematic diagram of a calibration platform of the present utility model.

FIG. 14 is an exploded view of the measuring device of the present utility model during assembly.

FIG. 15 is a schematic view of the structure of the measuring device of the present utility model.

Fig. 16 is a schematic view of the measuring state of the measuring device of the present utility model.

Wherein: the device comprises an A-shifting fork shaft, a p-shaft upper plane, a k-shaft upper pin hole, a 1-bearing platform, a 2-positioning device, a 21-positioning pin, a 22-positioning pin sleeve, a 23-positioning pin seat, a 3-clamping device, a 31-T-shaped base, a 310-V-shaped groove, a 32-quick clamp, a 33-clamp supporting seat, a 4-measuring device, a 41-inclinometer, a 42-measuring seat, a 420-rectangular groove, a 43-calibration platform, a 430-platform seat and a 431-longitudinal rectangular plate.

Detailed Description

Example 1

An included angle gauge for measuring an included angle between a plane on a shaft of a shifting fork of a gearbox and a pin hole on the shaft is shown in fig. 1-16; the shifting fork comprises a shifting fork shaft A, wherein the end part and the middle part of the shifting fork shaft A are correspondingly provided with an on-shaft plane p and an on-shaft pin hole k, as shown in figure 1; the device comprises a bearing platform 1, a positioning device 2, two groups of clamping devices 3 and a measuring device 4, wherein the devices are distributed on the bearing platform 1 at intervals, the bearing platform 1 is provided with a horizontal working surface, the clamping devices 3 are respectively clamped on the left side and the right side of a shifting fork shaft lever body, the pin hole axis on the shifting fork shaft is positioned at 50 degrees with the horizontal working surface of the bearing platform by matching the positioning device 2 with the clamping devices 3 before measurement, the shifting fork shaft A is clamped by the clamping devices 3 in each group during positioning, the clamping devices 3 promote the positioning stability of the shifting fork shaft A, when the measuring device 4 and the upper shaft plane p keep concentric, the measuring device 4 is used for measuring a value between-15 'and +15', and then the positioning angle of the shifting fork shaft is increased by 50 degrees, and the sum of the included angles of the upper shaft plane p and the pin hole k on the shaft are 50-15 'and 50 degrees +15', as shown in fig. 2.

According to an embodiment in combination with fig. 3-6: the positioning device 2 comprises a positioning pin 21, a positioning pin sleeve 22 and a positioning pin seat 23, wherein the positioning pin seat 23 is formed by integrally connecting an upper supporting table and a lower supporting column, the supporting table forms 50 degrees with the horizontal working surface of the bearing platform, and the supporting column is vertically and fixedly connected to the horizontal working surface of the bearing platform 1; the cross section of the positioning pin sleeve 22 is T-shaped, a longitudinal central through hole is formed in the positive T-shaped direction, the longitudinal section of the positive T-shaped positioning pin sleeve 22 is inserted into the central hole of the supporting table of the positioning pin seat 23, and meanwhile, the bottom of the transverse section of the positive T-shaped positioning pin sleeve 22 is attached to the supporting table of the positioning pin seat 23; one end of the positioning pin 21 is a handheld part, the other end of the positioning pin 21 is a positioning part, the diameter of the handheld part of the positioning pin 21 is larger than that of the through hole of the positioning pin sleeve 22, the handheld part of the positioning pin 21 is enabled to be hollowed out of the central through hole of the positioning pin sleeve 22, the middle section of the positioning pin 21 is matched with the central through hole of the positioning pin sleeve 22 and can freely slide along the axis of the central through hole of the positioning pin sleeve 22, the positioning part of the positioning pin 21 is inserted into the pin hole k on the shaft and forms gapless matching, and the positioning of the shifting fork shaft A with the axis of the pin hole k on the shaft forming 50 degrees with the horizontal working surface of the bearing platform 1 is realized.

In further combination with fig. 7-10: each group of clamping devices 3 comprises a T-shaped base 31, a quick clamp 32 and a clamp supporting seat 33, wherein the T-shaped base 31 and the clamp supporting seat 33 in each group of clamping devices are in central opposite positions and are respectively fixedly connected to the bearing platform 1; the bottom of the T-shaped base 31 is a plane and is fixedly connected to the horizontal working surface of the bearing platform 1, the top of the T-shaped base 31 is provided with a V-shaped groove 310, and the V-shaped groove 310 bears a shifting fork shaft A; the clamp support seat 33 is a straight quadrangular prism, the quick clamp 32 is fixedly connected to the clamp support seat 33, and the head of the quick clamp 32 presses the shifting fork shaft A, so that the shifting fork shaft A is pressed in the V-shaped groove 310 of the T-shaped base 31.

In combination with fig. 11-15: the measuring device comprises an inclinometer 41, a measuring seat 42 and a calibration platform 43, wherein the measuring seat 42 is in a tenon structure, and the measuring seat 42 comprises a platform on one side and two square tenons on the other side, and a space between the two square tenonsShape of a Chinese characterForming a rectangular groove 420 with a planar periphery; the cross section of the calibration platform 43 is T-shaped, one lateral section of the T-shaped calibration platform 43 forms a platform seat 430 and is fixedly connected with the bearing platform 1, the other longitudinal section of the T-shaped calibration platform 43 forms a longitudinal rectangular plate 431, and the longitudinal rectangular plate 431 is inserted into the rectangular groove 420 of the measuring seat 42 to form gapless fit; the measuring seat 42 is placed on the calibrating platform 43, the inclinometer 41 is placed on the platform of the measuring seat 42, the inclinometer 41 is attracted with the platform of the measuring seat 42, and the zero-angle calibration of the inclinometer 41 is completed through the calibrating platform 43, and the zero-angle inclinometer 41 and the measuring seat 42 are moved to the on-axis plane p for measurement.

In the above embodiment, the inclinometer 41 adopts a high-precision digital display inclinometer, the bottom surface of which has magnetism, and the measurement work is integrally completed by the magnetism and the platform adsorption of the measurement seat 42; and the inclinometer 41 adopts a high-precision digital display inclinometer, so that the zero angle calibration and the measurement value of the inclinometer 41 are more accurate.

In carrying out the measuring steps and processes: before measurement, the positioning device 2 is matched with each group of clamping devices 3 to realize that the shifting fork shaft A forms a 50-degree angle with the horizontal working surface of the bearing platform 1 by the axis of the pin hole k on the shaft, when the measuring device 4 keeps concentric with the plane p on the shaft, the value between-15 'and +15' formed by the plane p on the shaft and the horizontal working surface of the bearing platform 1 is measured by the measuring device 4, and the positioning angle of the shifting fork shaft is increased by 50 degrees, so that the sum of the angles between the plane p on the shaft and the pin hole k on the shaft is 50-15 'and 50 +15'; the value of the included angle between the plane p on the shaft and the pin hole k on the shaft is actually the value for checking whether the plane p on the shaft is horizontal or not, or the deviation value between the plane p on the shaft and the horizontal working surface of the bearing platform 1 is closer to 0, which means that the accuracy of the measured shifting fork shaft A is high, and the best purpose of the checking tool for checking is achieved, as shown in fig. 16; then the included angle between the axis of the pin hole k on the shaft and the plane p on the shaft is measured to be a value in the range of 50 degrees to 15 degrees and 50 degrees to 15 degrees, and meanwhile, the shifting fork shaft of the gearbox meets the standard.

When the device finishes one-time measurement or is not used, the inclinometer 41 and the measuring seat 42 are put back on the calibration platform 43 for standby.

In the embodiment of the device, the following steps are provided: an example of measuring a value in the range of 50 ° -15 'and 50 ° +15' for the angle between the pin bore k axis on the shaft and the plane p on the shaft is illustrated in the sense: if the included angle value between the upper plane p of the shaft of the tested shifting fork and the axis of the pin hole k on the shaft is in the range of 50-15 'and 50-15', the horizontal working surface of the checking fixture supporting table and the bearing platform is designed to be 50 degrees, so that the axis of the pin hole k on the shaft and the horizontal working surface of the bearing platform form 50 degrees, and the measurement is convenient; at this time, after the measuring device measures the value between the upper plane p of the shaft and the horizontal working surface of the bearing platform to form a value between-15 'and +15', the positioning angle of the shifting fork shaft is increased by 50 degrees, the sum becomes the included angle value between the upper plane p of the shaft and the pin hole k of the shaft, and when the included angle value between the upper plane p of the shaft and the pin hole k of the shaft is within the range of 50-15 'and 50 +15', the shifting fork shaft is qualified. If the included angle between the upper plane p of the shifting fork shaft workpiece shaft and the axis of the pin hole k on the shaft is measured to be other angle values, for example, 40 degrees, the horizontal working surfaces of the locating pin seat supporting table and the bearing platform of the locating device in the checking fixture are correspondingly designed to be 40 degrees, so that the accurate measurement of the checking fixture is carried out according to 40 degrees, and the like.

In summary, the measuring device is simple in assembly, short in installation time, low in cost, few in steps and procedures, simple in implementation, few in matched parts and free from site limitation.

Therefore, compared with the prior art, the gauge really simplifies assembly, has accurate detection and small error, and obviously reflects convenience and universality.

In addition to the embodiments described above, other embodiments of the utility model are possible. All technical schemes formed by equivalent substitution or equivalent transformation fall within the protection scope of the utility model.

Claims (7)

1. The gauge for measuring the included angle between the upper plane of the shifting fork shaft of the gearbox and the pin hole on the shaft comprises a shifting fork shaft, wherein the end part and the middle part of the shifting fork shaft are correspondingly provided with the upper plane of the shaft and the pin hole on the shaft; the method is characterized in that: the device comprises a bearing platform, a positioning device, at least two groups of clamping devices and a measuring device, wherein the devices are distributed on the bearing platform at intervals, the bearing platform is provided with a horizontal working surface, the clamping devices are respectively clamped on the left side and the right side of a shaft lever body of a shifting fork, the positioning of the shifting fork shaft at an angle with the horizontal working surface of the bearing platform is realized through the cooperation of the positioning device and the clamping devices of the groups before measurement, the clamping devices of the groups are used for clamping when the shifting fork shaft is positioned, and the measuring device is used for measuring the angle value formed by the horizontal working surface of the bearing platform and the upper plane of the shaft when the measuring device is kept concentric with the upper plane of the shaft.

2. The tool for measuring an included angle between a plane on a shaft of a shift fork of a gearbox and a pin hole on the shaft according to claim 1, wherein the tool is characterized in that: the shifting fork shaft is positioned at an angle of 50 degrees with the horizontal working surface of the bearing platform by the pin hole axis on the shaft through the positioning device, and the clamping device promotes the positioning of the shifting fork shaft to be stable; after the measuring device measures the angle value formed by the plane on the shaft and the horizontal working surface of the bearing platform, the positioning angle of the shifting fork shaft is increased by 50 degrees, and the sum becomes the included angle value of the plane on the shaft and the pin hole on the shaft.

3. The tool for measuring an included angle between a plane on a shaft of a shift fork of a gearbox and a pin hole on the shaft according to claim 2, wherein: the positioning device comprises a positioning pin, a positioning pin sleeve and a positioning pin seat, wherein the positioning pin seat is formed by integrally connecting an upper supporting table and a lower supporting column, the supporting table forms 50 degrees with the horizontal working surface of the bearing platform, and the supporting column is vertically and fixedly connected to the horizontal working surface of the bearing platform; the cross section of the positioning pin sleeve is T-shaped, a longitudinal central through hole is formed in the positive T-shaped direction, the longitudinal section of the positive T-shaped positioning pin sleeve is inserted into the central hole of the positioning pin seat supporting table, and meanwhile, the bottom of the transverse section of the positive T-shaped positioning pin sleeve is attached to the positioning pin seat supporting table surface; the locating pin is characterized in that one end of the locating pin is a handheld part, the other end of the locating pin is a locating part, the diameter of the handheld part of the locating pin is larger than that of the through hole of the locating pin sleeve, the handheld part of the locating pin is enabled to be hollowed out of the central through hole of the locating pin sleeve, the middle section of the locating pin is matched with the central through hole of the locating pin sleeve and can freely slide along the axis of the central through hole of the locating pin sleeve, the locating part of the locating pin is spliced with a pin hole on a shaft and forms clearance fit, and the locating of a shifting fork shaft with the axis of the pin hole on the shaft and a horizontal working surface of a bearing platform forming 50 degrees is achieved.

4. The tool for measuring an included angle between a plane on a shaft of a shift fork of a gearbox and a pin hole on the shaft according to claim 2, wherein: each group of clamping devices comprises a T-shaped base, a quick clamp and a clamp supporting seat, wherein the T-shaped base and the clamp supporting seat in each group of clamping devices are in central opposite positions and are respectively fixedly connected to the bearing platform; the bottom of the T-shaped base is a plane and is fixedly connected to the horizontal working surface of the bearing platform, and the top of the T-shaped base is provided with a V-shaped groove which bears a shifting fork shaft; the clamp supporting seat is a straight quadrangular prism, the quick clamp is fixedly connected to the clamp supporting seat, and the head of the quick clamp presses the shifting fork shaft, so that the shifting fork shaft is pressed in the V-shaped groove of the T-shaped base.

5. The tool for measuring an included angle between a plane on a shaft of a shift fork of a gearbox and a pin hole on the shaft according to claim 2, wherein: the measuring device comprises an inclinometer, a measuring seat and a calibration platform, wherein the bottom of the calibration platform is attached and fixedly connected with the horizontal working surface of the bearing platform through bolts, the measuring seat is placed on the calibration platform, the inclinometer is placed on the measuring seat, the inclinometer is subjected to zero calibration through the calibration platform, and the zero calibration inclinometer is subjected to measurement by riding on an on-axis plane through the measuring seat.

6. The tool for measuring the included angle between the upper plane of the shaft and the pin hole of the shaft of a shifting fork of a gearbox according to claim 5, wherein: the measuring seat is of a tenon structure and comprises a platform at one side and two square tenons at the other side, and a peripheral planar rectangular groove is formed between the two square tenons; the cross section of the calibration platform is T-shaped, one side transverse section of the T-shaped calibration platform forms a platform seat and is fixedly connected with the bearing platform, the other side longitudinal section of the T-shaped calibration platform forms a longitudinal rectangular plate, a rectangular groove of the measurement seat is spliced by the longitudinal rectangular plate and forms gapless fit, an inclinometer is placed on the platform of the measurement seat, the inclinometer is attracted with the platform of the measurement seat, zero-angle calibration of the inclinometer is completed through the calibration platform, the zero-angle inclinometer is carried with the measurement seat to be moved on an on-axis plane for measurement, and the inclinometer displays an included angle value formed by the on-axis plane and the horizontal working surface of the bearing platform.

7. The tool for measuring the angle between the upper plane of the shaft and the pin hole of the shaft of a shifting fork of a gearbox according to claim 6, wherein: the inclinometer adopts a high-precision digital display inclinometer, the bottom surface of the inclinometer has magnetism, and the measurement work is integrally completed through the magnetism and the platform adsorption of the measurement seat.