Shaft extension measuring tool

Abstract

The utility model relates to the field of machining, in particular to a shaft extension measuring tool which comprises a tool bottom plate, a pressing assembly and a measuring assembly, the pressing assembly is arranged on the tool bottom plate, and a workpiece to be measured is placed on one side of the pressing assembly; the pressing assembly is opposite to the end face of the to-be-measured workpiece and can move in the height direction of the tool bottom plate. The measuring assembly comprises a sleeving member and a measuring scale. The sleeving member sleeves a transmission shaft of a to-be-measured workpiece and abuts against a shaft shoulder of the to-be-measured workpiece. The first measuring end of the measuring scale abuts against one end of the sleeving member away from the shaft shoulder of the transmission shaft of the to-be-measured workpiece, and the second measuring end abuts against the end face of the to-be-measured workpiece. The to-be-measured workpiece is pressed through the pressing assembly, so that the to-be-measured workpiece is fixed on the to-be-measured workpiece, and the influence of an elastic gasket in the to-be-measured workpiece on the measurement precision is avoided; by means of the indirect measurement mode, the situation that operation is inconvenient due to the fact that the shaft shoulder of the transmission shaft is located on the inner side of the workpiece in the direct measurement process is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of machining especially relates to a measure shaft extension frock. BACKGROUND

[0002] In the size detection of workpiece with transmission shaft, taking the motor of bean grinder as an example, the customer installs blade at the transmission shaft extension end, controls the fineness of ground bean particles by adjusting the position change of motor rotor front and back, so there is certain requirement to the height from the shaft shoulder of transmission shaft extension to the motor end face. Because the spring wave gasket etc. are arranged in the motor, the conventional manual pressing fixation and measurement exist certain measurement error because the spring wave gasket cannot be uniformly pressed, need to repeatedly measure, and the measurement efficiency is low. For the structure that the transmission shaft shoulder is located in the motor, the conventional measurement operation is also relatively complex. SUMMARY

[0003] The utility model wants to solve the technical problem that provide a kind of measure shaft extension frock that can quickly press workpiece and facilitate measurement.

[0004] In order to solve the above technical problem, the technical scheme that the utility model adopts is as follows: a kind of measure shaft extension frock, it is used for the measurement of the distance between the end face of workpiece and the transmission shaft shoulder arranged on its end face, including frock bottom plate, pressing assembly and measurement assembly, the pressing assembly is located on frock bottom plate, the pressing assembly side places the workpiece to be measured;The pressing assembly is opposite to the end face of workpiece to be measured and can be moved along the height direction of frock bottom plate;The measurement assembly includes sleeve setting piece and measuring scale, the sleeve setting piece is sleeved on the transmission shaft of workpiece to be measured and is opposite to its shaft shoulder;The measuring scale includes first measuring end and second measuring end, the first measuring end is opposite to the end of sleeve setting piece away from the shaft shoulder of transmission shaft of workpiece to be measured, and the second measuring end is opposite to the end face of workpiece to be measured.

[0005] Further, the sleeve setting piece is T-shaped structure, including measuring part and fixed part, the measuring part is located on the upper side of fixed part, the fixed part is sleeved with the transmission shaft of workpiece to be measured, and the measuring part is protrudingly arranged on the side surface of fixed part;The first measuring end is opposite to the measuring part.

[0006] Further, the pressing assembly includes pressing rod and drive cylinder, the drive cylinder is arranged on frock bottom plate, and the pressing rod is connected with the driving end of drive cylinder and is opposite to the end face of workpiece to be measured.

[0007] Further, the pressing rod is nylon pressing rod.

[0008] Further, the pressing assembly is rotatably arranged on frock bottom plate.

[0009] Further, the drive cylinder is corner cylinder.

[0010] Further, the jig base plate is provided with a reference plate, and the reference plate is provided with a fixing groove matched with the workpiece to be measured.

[0011] Further, the reference plate is detachably arranged on the jig base plate.

[0012] Further, the measuring part and the fixing part are threadedly connected.

[0013] Further, the jig base plate is provided with a pressing assembly on both sides of the workpiece to be measured.

[0014] The beneficial effects of the utility model lie in that: when in use, the workpiece to be measured is pressed by the pressing assembly and fixed on the workpiece to be measured, so that the influence of the elastic gasket in the workpiece to be measured on the measuring accuracy is avoided; then the sleeve setting piece is sleeved at the transmission shaft of the workpiece end face, the distance between the end part of the sleeve setting piece and the workpiece end face is measured by the two measuring ends of the measuring scale in the form of indirect measurement, and then the distance between the transmission shaft shoulder and the workpiece end face is obtained by subtracting the height of the sleeve setting piece, so that the situation that the transmission shaft shoulder is inconvenient to operate because it is inside the workpiece when directly measured is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the measuring shaft extension jig of the utility model.

[0016] Label explanation:

[0017] Jig base plate; 2, pressing assembly; 21, pressing rod; 22, driving cylinder; 3, sleeve setting piece; 31, measuring part; 32, fixing part; 4, reference plate. DETAILED DESCRIPTION

[0018] In order to explain the technical content, the purposes and effects of the utility model in detail, the following will be explained in combination with the embodiments and the drawings.

[0019] Please refer to Figure 1 A kind of measuring shaft extension jig, it is used for the measurement between workpiece end face and transmission shaft shoulder distance arranged on its end face, including jig base plate 1, pressing assembly 2 and measuring assembly, the pressing assembly 2 is arranged on jig base plate 1, the pressing assembly 2 side places workpiece to be measured;The pressing assembly 2 is opposite to the end face of workpiece to be measured and can be moved along the height direction of jig base plate 1;The measuring assembly includes sleeve setting piece 3 and measuring scale, the sleeve setting piece 3 is sleeved on the transmission shaft of workpiece to be measured and is opposite to its shaft shoulder;The measuring scale includes first measuring end and second measuring end, the first measuring end is opposite to the end of sleeve setting piece 3 away from the transmission shaft shoulder of workpiece to be measured, and the second measuring end is opposite to the end face of workpiece to be measured.

[0020] The utility model discloses have the beneficial effect in the above description, when using, through the compression assembly 2 to the workpiece of measuring to resist pressure, make it fixed on the workpiece of measuring, avoid the influence of elastic washer in the workpiece of measuring to the measuring accuracy, then the transmission shaft at the workpiece end surface is sleeved into the sleeve setting piece 3, through the form of indirect measurement, the distance of sleeve setting piece 3 end and workpiece end surface is measured by the two measuring ends of measuring scale, then subtracts the sleeve setting piece 3 height and obtains the distance of transmission shaft shoulder and workpiece end surface, avoids the situation of not convenient operation when direct measurement due to transmission shaft shoulder being in the inside of workpiece.

[0021] Further, the sleeve setting piece 3 is T-shaped structure, including measuring part 31 and fixed part 32, the measuring part 31 is located on the upper side of fixed part 32, the fixed part 32 is sleeved with the transmission shaft of workpiece of measuring, and the measuring part 31 is protrudingly arranged on the side surface of fixed part 32.

[0022] From the above description, the protruding arrangement of the measuring part 31 makes the first measuring end of the measuring scale conveniently abut against the workpiece of measuring during measurement.

[0023] Further, the compression assembly 2 includes a pressing rod 21 and a drive cylinder 22, the drive cylinder 22 is arranged on the tooling base plate 1, and the pressing rod 21 is connected with the driving end of the drive cylinder 22 and opposite to the end surface of the workpiece of measuring.

[0024] From the above description, the drive cylinder 22 drives the pressing rod 21 to press against the end surface of the workpiece of measuring to fix the workpiece of measuring.

[0025] Further, the pressing rod 21 is a nylon pressing rod 21.

[0026] From the above description, the use of the nylon pressing rod 21 can avoid the abrasion of the workpiece of measuring during pressing.

[0027] Further, the compression assembly 2 is rotatably arranged on the tooling base plate 1.

[0028] From the above description, the rotatable arrangement of the compression assembly 2 can facilitate the arrangement of the workpiece of measuring before and after measurement, and the rotated compression assembly 2 will not interfere with the arrangement of the workpiece of measuring on the tooling base plate 1.

[0029] Further, the drive cylinder 22 is a corner cylinder.

[0030] From the above description, the use of the corner cylinder can simultaneously realize the pressing of the pressing rod 21 and the avoidance of rotation.

[0031] Further, the tooling base plate 1 is provided with a reference plate 4, and the reference plate 4 is provided with a fixing groove matched with the workpiece of measuring.

[0032] From the above description, the measuring reference during measurement is calibrated by the reference plate 4, and the fixed groove on the reference plate 4 is used to ensure that the workpiece to be measured is placed flat on the tooling base plate 1.

[0033] Further, the reference plate 4 is detachably arranged on the tooling base plate 1.

[0034] From the above description, the reference plate 4 is detachably arranged, and can be quickly replaced according to different workpieces to be measured.

[0035] Further, the measuring part 31 and the fixing part 32 are threadedly connected.

[0036] From the above description, the measuring part 31 of the sleeve piece 3 needs to ensure that the end face is flat to ensure measurement accuracy, and can be replaced through the threaded connection after long-term use; at the same time, the fixing part 32 can also be replaced according to the shaft shoulder position of the transmission shaft of different workpieces to be measured.

[0037] Further, the tooling base plate 1 is provided with a pressing assembly 2 on both sides of the workpiece to be measured.

[0038] From the above description, the arrangement of the pressing assembly 2 on both sides of the workpiece to be measured can ensure that the workpiece to be measured is stably arranged on the tooling base plate 1.

[0039] Please refer to Figure 1 , the embodiment one of the utility model discloses:

[0040] A kind of measuring shaft extension tool, which is used for the measurement of the distance between workpiece end face and transmission shaft shoulder arranged on its end face, comprising tooling base plate 1, pressing assembly 2 and measuring assembly, the pressing assembly 2 is arranged on tooling base plate 1, the pressing assembly 2 side places workpiece to be measured;The pressing assembly 2 is opposite to the end face of workpiece to be measured and can be moved along the height direction of tooling base plate 1;The measuring assembly includes sleeve piece 3 and measuring scale, the sleeve piece 3 is sleeved on the transmission shaft of workpiece to be measured and is abutted with its shaft shoulder;The measuring scale includes first measuring end and second measuring end, the first measuring end is abutbed with the end of sleeve piece 3 away from the shaft shoulder of transmission shaft of workpiece to be measured, and the second measuring end is abutted with the end face of workpiece to be measured.

[0041] The sleeve piece 3 is T-shaped structure, which includes measuring part 31 and fixing part 32, the measuring part 31 is arranged on the upper side of fixing part 32, the fixing part 32 is sleeved with the transmission shaft of workpiece to be measured, and the measuring part 31 is protrudingly arranged on the side surface of fixing part 32;The first measuring end is abutted with the measuring part 31.

[0042] The pressing assembly 2 includes pressing rod 21 and drive cylinder 22, the drive cylinder 22 is arranged on tooling base plate 1, and the pressing rod 21 is connected with the driving end of drive cylinder 22 and is opposite to the end face of workpiece to be measured.

[0043] The pressing rod 21 is a nylon pressing rod 21.

[0044] The pressing assembly 2 is rotatably arranged on the tool base plate 1.

[0045] The driving cylinder 22 is a rotation angle cylinder.

[0046] The tool base plate 1 is provided with a reference plate 4, and the reference plate 4 is provided with a fixing groove matched with the workpiece to be measured.

[0047] The reference plate 4 is detachably arranged on the tool base plate 1.

[0048] The measuring part 31 and the fixing part 32 are screw-connected.

[0049] The tool base plate 1 is provided with the pressing assembly 2 on both sides of the workpiece to be measured.

[0050] In summary, the measuring shaft extension tool provided by the utility model, when in use, the workpiece to be measured is pressed by the pressing assembly, so that it is fixed on the workpiece to be measured, and the influence of the elastic gasket in the workpiece to be measured on the measuring precision is avoided; then the sleeve assembly is sleeved at the transmission shaft of the workpiece end face, the distance between the end part of the sleeve assembly and the workpiece end face is measured by the two measuring ends of the measuring ruler through the indirect measuring mode, and then the height of the sleeve assembly is subtracted to obtain the distance between the transmission shaft shoulder and the workpiece end face, so that the situation that the transmission shaft shoulder is inconvenient to operate when directly measured because it is on the inside of the workpiece is avoided.

[0051] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent transformation or direct or indirect application in the related technical field according to the content of the utility model specification and drawings is also included in the patent protection range of the utility model.

Claims

1. A fixture for measuring shaft extension, used for measuring the distance between the end face of a workpiece and the shoulder of a transmission shaft disposed on the end face, characterized in that, The device includes a base plate, a clamping assembly, and a measuring assembly. The clamping assembly is mounted on the base plate, and a workpiece to be measured is placed on one side of the clamping assembly. The clamping assembly is opposite to the end face of the workpiece and is movable along the height direction of the base plate. The measuring assembly includes a sleeve and a measuring scale. The sleeve is fitted onto the drive shaft of the workpiece and abuts against its shoulder. The measuring scale includes a first measuring end and a second measuring end. The first measuring end abuts against the end of the sleeve away from the drive shaft shoulder of the workpiece, and the second measuring end abuts against the end face of the workpiece.

2. The measuring shaft extension fixture according to claim 1, characterized in that, The sleeve has a T-shaped structure and includes a measuring part and a fixing part. The measuring part is located on the upper side of the fixing part. The fixing part is sleeved with the transmission shaft of the workpiece to be measured. The measuring part protrudes from the side of the fixing part. The first measuring end abuts against the measuring part.

3. The measuring fixture for shaft extension according to claim 1, characterized in that, The clamping assembly includes a pressure rod and a drive cylinder. The drive cylinder is mounted on the tooling base plate. The pressure rod is connected to the drive end of the drive cylinder and is opposite to the end face of the workpiece to be tested.

4. The measuring shaft extension fixture according to claim 3, characterized in that, The pressure bar is a nylon pressure bar.

5. The measuring fixture for shaft extension according to claim 1, characterized in that, The clamping assembly is rotatably mounted on the tooling base plate.

6. The measuring shaft extension fixture according to claim 3, characterized in that, The driving cylinder is a rotary cylinder.

7. The measuring fixture for shaft extension according to claim 1, characterized in that, The tooling base plate is provided with a reference plate, and the reference plate is provided with a fixing groove adapted to the workpiece to be measured.

8. The measuring shaft extension fixture according to claim 7, characterized in that, The reference plate is detachably mounted on the tooling base plate.

9. The measuring fixture for shaft extension according to claim 2, characterized in that, The measuring part and the fixing part are threaded together.

10. The measuring shaft extension fixture according to claim 1, characterized in that, The tooling base plate is equipped with clamping components on both sides of the workpiece to be tested.

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