阅读说明：本技术 一种手动变速器总成选档行程测量检具 (Manual transmission assembly gear selection stroke measurement gauge ) 是由 邵玉鹏 熊艳 张靓 于 2021-08-17 设计创作，主要内容包括：本发明公开了一种手动变速器总成选档行程测量检具,拉锁前端穿过拉锁固定块内通孔,与拉锁固定块移动连接,拉锁固定块上设置有卡槽,拉锁后端与选档摇臂连接头相连接,选档摇臂连接头上设置有安装孔；拉锁固定块卡接在检具固定座后端的沉头孔内,拉锁前端插入检具固定座的通孔内,位移传感器固定在检具固定座前端的通孔内,拉锁前端与位移传感器的测量顶针相接触。本发明取代了原先采用深度尺测量选档行程的测量方法,通过数显千分表可以直接读出选档行程,使得变速箱总成的选档行程测量变得简便快捷,从而保证变速箱总成的选档行程符合工艺要求。(The invention discloses a manual transmission assembly gear selection stroke measuring gauge, wherein the front end of a zipper penetrates through a through hole in a zipper fixing block and is movably connected with the zipper fixing block, a clamping groove is formed in the zipper fixing block, the rear end of the zipper is connected with a gear selection rocker arm connector, and a mounting hole is formed in the gear selection rocker arm connector; the zipper fixing block is clamped in a countersunk hole at the rear end of the checking fixture fixing seat, the front end of the zipper is inserted into a through hole of the checking fixture fixing seat, the displacement sensor is fixed in the through hole at the front end of the checking fixture fixing seat, and the front end of the zipper is in contact with a measuring thimble of the displacement sensor. The invention replaces the original measuring method of measuring the gear selecting stroke by adopting a depth gauge, and the gear selecting stroke can be directly read by a digital display dial indicator, so that the gear selecting stroke of the gearbox assembly is simply, conveniently and quickly measured, and the gear selecting stroke of the gearbox assembly is ensured to meet the process requirements.)

1. The utility model provides a manual transmission assembly gear selection stroke measurement examines utensil which characterized in that: the method comprises the following steps: displacement sensor, examine a fixing base, select shelves zip assembly includes: the zipper fixing block is provided with a clamping groove, the rear end of the zipper is connected with the gear selecting rocker arm connector, and the gear selecting rocker arm connector is provided with a mounting hole; the zipper fixing block is clamped in a countersunk hole at the rear end of the checking fixture fixing seat, the front end of the zipper is inserted into a through hole of the checking fixture fixing seat, the displacement sensor is fixed in the through hole at the front end of the checking fixture fixing seat, and the front end of the zipper is in contact with a measuring thimble of the displacement sensor.

2. The manual transmission assembly gear selection stroke measuring gauge according to claim 1, characterized in that: still include the rubber dust cover, the rubber dust cover cup joints on the zip.

3. The manual transmission assembly gear selection stroke measuring gauge according to claim 2, characterized in that: the rubber dust cover adopts a corrugated pipe structure.

4. The manual transmission assembly gear-selecting travel measuring tool according to any one of claims 1, wherein: and a support head screw on the side surface of the detection tool fixing seat is fixed with the displacement sensor thimble sleeve.

5. The manual transmission assembly gear selection stroke measuring gauge according to claim 1, characterized in that: the gauge fixing seat is of a cylindrical stepped shaft structure.

6. The manual transmission assembly gear selection stroke measuring gauge according to claim 1, characterized in that: the zipper fixing block is in interference fit with the counter bore of the checking fixture fixing seat, the checking fixture fixing seat is pressed in by adopting press fitting, and the step through the counter bore of the checking fixture fixing seat is limited.

7. The manual transmission assembly gear selection stroke measuring tool according to any one of claims 1 to 6, characterized in that: the displacement sensor adopts a digital display dial indicator.

Technical Field

The invention relates to a manual transmission assembly gear selection stroke measurement gauge, and belongs to the technical field of automobile accessory machining.

Background

At present, a transmission assembly is arranged in a whole vehicle, and the gear selection stroke of the transmission is too large or too small, so that the gear selection of a gear shifting seat connected with a gearbox is not in place, and further the gear shifting is blocked or the gear cannot be engaged. And if the whole vehicle has the phenomenon of gear shifting jamming or gear engaging failure in the road running process, potential safety hazards are likely to occur.

In order to control the gear selection stroke value of the transmission assembly when the transmission assembly leaves a factory, in the prior art, a depth gauge is used for measuring and calculating the gear selection stroke of the transmission assembly, wherein the gear selection stroke is the distance between a gear selection rocker arm pin at a third-fourth gear position and a gear selection rocker arm pin at a second-fourth gear position. The depth gauge needs to measure the distance from a gear selecting rocker arm pin to the reference when three or four gears and the distance from the gear selecting rocker arm pin to the reference when two gears are used as the reference, and the difference between the two measured distance values is the gear selecting stroke of one gear and two gears.

However, the depth gauge is a standard measuring tool, and it is necessary to read the scale lines by visual observation while applying a close force during measurement, and the manual engineering is poor during batch operation, the beat length is long, and errors are easily generated in the measured value.

Disclosure of Invention

The purpose is as follows: in order to overcome the defect of gear selecting stroke measurement of a gearbox in the prior art, the invention provides a gear selecting stroke measurement gauge of a manual transmission assembly.

The technical scheme is as follows: in order to solve the technical problems, the technical scheme adopted by the invention is as follows:

a manual transmission assembly gear selection stroke measurement gauge comprises: displacement sensor, examine a fixing base, select shelves zip assembly includes: the zipper fixing block is provided with a clamping groove, the rear end of the zipper is connected with the gear selecting rocker arm connector, and the gear selecting rocker arm connector is provided with a mounting hole; the zipper fixing block is clamped in a countersunk hole at the rear end of the checking fixture fixing seat, the front end of the zipper is inserted into a through hole of the checking fixture fixing seat, the displacement sensor is fixed in the through hole at the front end of the checking fixture fixing seat, and the front end of the zipper is in contact with a measuring thimble of the displacement sensor.

Preferably, the zipper further comprises a rubber dust cover which is sleeved on the zipper.

Preferably, the rubber dust cover adopts a bellows structure.

Preferably, the displacement sensor is a digital dial indicator.

As an optimal scheme, the detection tool fixing seat is of a cylindrical stepped shaft structure.

According to the preferable scheme, the zipper fixing block is in interference fit with the counter bore of the detection tool fixing seat, the detection tool fixing seat is pressed in by adopting press fitting, and the step of the counter bore of the detection tool fixing seat is used for limiting.

As the preferred scheme, a support screw on the side surface of the detection tool fixing seat is fixed with the displacement sensor thimble sleeve.

Has the advantages that: the manual transmission assembly gear selection stroke measuring gauge provided by the invention replaces the original measuring method for measuring the gear selection stroke by adopting a depth gauge, and the gear selection stroke can be directly read by a digital display dial indicator, so that the gear selection stroke of the transmission assembly is simply, conveniently and quickly measured, and the gear selection stroke of the transmission assembly is ensured to meet the technological requirements. The gear selecting stroke measuring device is simple in structure, convenient to install and capable of measuring the gear selecting stroke of the transmission assembly quickly and accurately.

Drawings

FIG. 1 is a schematic sectional view of a measurement tool.

Fig. 2 is a schematic front view of a measurement gauge.

FIG. 3 is a top view of the mounting structure of the measuring tool during measurement.

FIG. 4 is a front view of the mounting structure of the measuring tool during measurement.

Detailed Description

The present invention will be further described with reference to the following examples.

The invention aims to design a measuring gauge for measuring the gear selection stroke of a manual transmission, aiming at the inaccurate gear shifting stroke phenomena of the manual transmission assembly such as gear blocking or gear engaging failure. After the measuring gauge passes the gear selection, the gear selection zipper pushes the digital display dial indicator, the swinging displacement of the gear selection zipper is converted into the numerical value of the digital display dial indicator, and whether the gear selection stroke of the gearbox assembly meets the process requirement or not is judged through the numerical value.

Referring to fig. 1-2, a manual transmission assembly gear selection travel measurement gauge includes: digital display amesdial 1, examine utensil fixing base 2, select shelves zip assembly 3. The digital display dial indicator 1 is a standard purchasing part and comprises a digital display panel 101 and a measuring thimble 102; the gear selection zipper assembly 3 includes: the gear selecting rocker arm connecting head is characterized by comprising a zipper fixing block 301, a zipper 302, a rubber dust cover 303 and a gear selecting rocker arm connecting head 304, wherein the zipper fixing block 301 is arranged as a cylindrical part, the outer side of the zipper fixing block is provided with a cylindrical clamping groove 305, and the center of the zipper fixing block is provided with a through hole 306; the zipper 302 penetrates through a through hole 306 in the center of the zipper fixing block 301, one end of the zipper 302 is connected with the gear selection rocker arm connector 304, the zipper fixing block 301 and the gear selection rocker arm connector are integrally movably connected, a mounting hole 307 is formed in the center of the gear selection rocker arm connector 304, the rubber dust cover 303 is sleeved on the zipper 302, the rubber dust cover 303 adopts a corrugated pipe structure, the rubber dust cover 303 is compressed when the zipper 302 moves, and the rubber dust cover can be automatically recovered after force is removed; the checking fixture fixing seat 2 is of a cylindrical stepped shaft structure, the stepped small diameter is used for reducing weight, a counter bore 201 and a through hole 202 are formed in the center, the counter bore 201 is connected with a zipper fixing block 301, the aperture of the counter bore 201 is consistent with the cylindrical diameter of the zipper fixing block 301, the free end of the zipper 302 penetrates through the zipper fixing block 301 to be inserted into the through hole 202 of the checking fixture fixing seat 2 and is in contact with a measuring thimble 101 of a digital display dial indicator 1 in the through hole 202, the aperture of the through hole 202 is consistent with the outer diameter of the measuring thimble 101 of the digital display dial indicator 1, two cylindrical ends of the checking fixture fixing seat 2 need to be communicated, and the through hole needs to allow the zipper fixing block 301, the zipper 302 and the measuring thimble 101 of the digital display dial indicator 1 to be separated; the measuring thimble of the digital display dial indicator 1 is in clearance fit with a hole at one end of the checking fixture fixing seat 2, and is fixed with a thimble sleeve 103 which is movably sleeved at the tail end of the measuring thimble 101 through a side face head supporting screw 203, so that the position of the digital display dial indicator 1 relative to the checking fixture fixing seat 2 can be conveniently adjusted; the zipper fixing block 301 is in interference fit with a counter bore of the checking fixture fixing seat 2, is pressed into the checking fixture fixing seat 2 by press fitting, and is limited by the step 204 of the counter bore 201 of the checking fixture fixing seat 2.

The displacement numerical value that the zip removed can be shown in real time after the measurement thimble of digital display micrometer removed, replaces original depth gauge reading. And any position within the measurement range of 0-25.4mm can be set as an initial digital display 0 position so as to meet the initial positions of the neutral positions of the transmissions with different sizes.

The gauge fixing seat 2 connects the digital display dial indicator 1 and the gear selecting zipper assembly 3 into a whole.

Example 1:

referring to fig. 3-4, when the measuring tool is used, the measuring tool is fixed on the gear-selecting zipper support 4 through the clamping groove by the zipper fixing block, the gear-selecting zipper support 4 is a reference of the measuring tool, the gear-selecting rocker arm connector is sleeved on a pin shaft of the gear-selecting rocker arm 5 through a central mounting hole, the measuring tool is installed in place, the zipper is in contact with a measuring thimble of the digital display dial indicator after the measuring thimble is in place, and the measuring thimble is compressed by about 3mm, so that a gap is avoided between the zipper and the measuring thimble; meanwhile, the displacement of the gear selecting rocker arm 5 during gear selecting swing can be transmitted to the digital display dial indicator in real time through the zipper.

The gear selection zipper assembly and the digital display dial indicator are combined through a cylindrical checking fixture fixing seat, and then the checking fixture is fixed on a gear selection zipper support through a zipper fixing block and a reference is found; secondly, the displacement of the gear selection swing of the gear selection rocker arm is transmitted by utilizing the zipper and the gear selection rocker arm connector; and thirdly, directly displaying the stroke numerical value of the gear selecting rocker arm after gear selecting swing by using a digital display dial indicator.

The invention has the advantages that the measuring process of the gear selecting stroke of the manual transmission assembly is simplified with low cost, the man-machine engineering for measuring the gear selecting stroke is optimized, and the reliability of the measured value of the gear selecting stroke is improved, thereby ensuring that the gear selecting stroke of the transmission assembly meets the process requirement.

The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.