CN210603140U

CN210603140U - Calliper gauge device for detecting key slot symmetry

Info

Publication number: CN210603140U
Application number: CN201921591795.2U
Authority: CN
Inventors: 沃林; 尉志超
Original assignee: Suzhou Yingshi Measurement Technology Co Ltd
Current assignee: Suzhou Yingshi Measurement Technology Co Ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-05-22
Anticipated expiration: 2029-09-24

Abstract

The utility model provides a pair of detect calliper rule device of keyway symmetry, including the calliper rule body, be equipped with the gauge rod on the calliper rule body, be used for clamping the mount pad of the fixed block of keyway and fixed block, the mount pad fixed mounting is in on the calliper rule body and lie in one side of gauge rod, the gauge rod can the calliper rule body towards the mount pad removes, fixed block detachably installs on the mount pad, the fixed block has the installation connecting portion on the mount pad and the chucking part of card in the keyway are established, the chucking part has the open slot, be equipped with in the open slot of chucking part and can make the expanded regulating block gradually of chucking part, connecting portion along the central axis of fixed block is symmetrical structure. The utility model discloses the device, easy operation, it is convenient, swift, it is high to detect the precision.

Description

Calliper gauge device for detecting key slot symmetry

Technical Field

The utility model relates to an instrument field of measurationing, concretely relates to detect caliper device of keyway symmetry.

Background

At present, often can need to process the keyway on the spare part body in accurate spare part course of working, in order to ensure the precision of spare part, need carry out the symmetry to the keyway of processing completion in the course of working and detect, but when carrying out the symmetry to the keyway on spheroid or cylinder and detecting, because the keyway sets up on the arcwall face, when detecting the symmetry of keyway, detect the difficulty, the symmetry inaccuracy that detects.

In prior art, when examining the keyway that sets up on the arc curved surfaces such as spheroid or cylinder, often measure through the measuring jaw slide caliper rule and calculate or detect through the imager, the measurement process is loaded down with trivial details, calculates inconveniently, produces the error easily in the testing process moreover, and the detection precision is difficult to guarantee.

Disclosure of Invention

In order to overcome the defect among the prior art, the embodiment of the utility model provides a callipers rule device can carry out the symmetry to the keyway of seting up on arc curved surfaces such as spheroid or cylinder and detect.

The embodiment of the application discloses: the utility model provides a detect calliper rule device of keyway symmetry, includes the calliper rule body, be equipped with the gauge rod on the calliper rule body, be used for clamping the mount pad of the fixed block and the fixed block in the keyway, mount pad fixed mounting is in on the calliper rule body and lie in one side of gauge rod, the gauge rod can the calliper rule body towards the mount pad removes, fixed block detachably installs on the mount pad, the fixed block has the installation connecting portion and the card chucking part of establishing in the keyway on the mount pad, the chucking part has the open slot, be equipped with in the open slot of chucking part and make the regulating block that the chucking part expands gradually, connecting portion along the central axis of fixed block is symmetrical structure.

Preferably, an elastic plate is connected between the clamping part and the connecting part on the fixing block, and the connecting part, the elastic plate and the clamping part are of an integrated structure.

Preferably, the cross-sectional area of the notch of the open groove is smaller than the cross-sectional area of the bottom of the open groove.

Preferably, the fixed block is further provided with an adjusting device connected with the adjusting block, and the adjusting block moves towards the direction of the opening of the open slot in the open slot through the adjusting device.

Preferably, the adjusting block is a sphere or a boss, and the adjusting block is tightly attached to the groove wall of the open groove.

Preferably, the measuring rod is parallel to the central axis of the fixed block.

Preferably, the mounting seat is provided with a mounting groove for inserting and pulling the fixing block, and the mounting groove is a contour groove matched with the connecting part.

The utility model has the advantages as follows:

the utility model discloses a detect callipers rule device of keyway symmetry, including measuring rod, be used for clamping fixed block and mount pad in the keyway, the connecting portion of the one end of fixed block are installed on the mount pad, and the chucking part card of the other end is established in the keyway, the chucking part has the open slot, sets up the regulating block in the open slot and props greatly gradually through the regulating block the cross section of open slot and then make the chucking part can hug closely and inlay card in the keyway.

When measuring, place the fixed block in the inspection and make the fixed block inlay card in the keyway of work piece through the regulating block, install the fixed block on the mount pad again, the measuring staff of adjustment mount pad one side moves to the fixed block, when the equivalent measuring staff moved extreme position, the measuring staff is tangent with the arc surface of work piece body, record numerical value and zero, extract the mount pad from the fixed block again, after the calliper rule device that will not have the fixed block is rotatory 180, rethread mount pad is connected on the fixed block, install the fixed block in the mounting groove of mount pad, adjust the position of measuring staff, carry out the secondary and measure, make the measuring staff tangent with the arc surface of work piece body once more, record the numerical value on the calliper rule device, thereby can obtain accurate detection out the keyway symmetry, it is convenient to measure, and easy operation is high measurement accuracy.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic structural view of a fixing block in the embodiment of the present invention;

fig. 3 is a schematic structural view of a first measurement of a caliper device according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a second measurement of the caliper device in the embodiment of the present invention.

In the figure: 100. a workpiece;

1. a caliper body; 2. a measuring rod; 3. a fixed block; 31. a connecting portion; 32. a clamping part; 320. an open slot; 33. an elastic plate; 4. a mounting seat; 40. mounting grooves; 5. an adjusting block; 6. and (4) an adjusting device.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the ordinary skilled person in the art without creative work all belong to the protection scope of the present invention:

as shown in fig. 1 and 2, the utility model provides a caliper device for detecting the symmetry degree of a key groove, which comprises a caliper body 1, the caliper gauge body 1 is provided with a measuring rod 2, a fixed block 3 used for being clamped in a key groove of a workpiece 100 and a mounting seat 4 of the fixed block 3, the mounting seat 4 is fixedly mounted on the caliper body 1 and is positioned at one side of the measuring rod 2, the measuring rod 2 can move on the caliper body 1 towards the mounting seat 4, the fixed block 3 is detachably mounted on the mounting seat 4, the fixing block 3 is provided with a connecting part 31 arranged on the mounting seat 4 and a clamping part 32 clamped in the key slot, the clamping part 32 is provided with an open groove 320, an adjusting block 5 capable of enabling the clamping part 32 to expand gradually is arranged in the open groove 320 of the clamping part 32, and the connecting part 31 is of a symmetrical structure along the central axis of the fixing block 3.

The fixing block 3 is inserted into a key groove of the workpiece 100 through the fixing block 3 which can be detachably connected with the mounting seat 4, the clamping part 32 of the fixing block 3 can gradually expand in the key groove along with the adjustment of the adjusting block 5 until the fixing block is fixed in the key groove, then the key groove is detected and measured, after the fixing block 3 is installed on the mounting seat 4, the caliper device is used for measuring, as the mounting seat 4 on the caliper body is detachably connected with the fixing block 3, the mounting seat 4 and the fixing block 3 can be detached, the workpiece 100 is measured after the position of the caliper device is conveniently adjusted, in the process, the fixing block 3 is always fixed on the key groove, as the connecting part 31 on the fixing block 3, which is used for being installed on the mounting seat 4, is of a symmetrical structure along the central axis of the fixing block 3, the fixing block 3 is installed on the mounting seat 4 after the position of the, the distance from the measuring rod 2 to the central axis of the fixed block 3 is equal, so that the symmetry degree of the key groove can be accurately detected, the detection is simple, convenient and quick, and the detection precision is high.

As shown in fig. 2, in the present embodiment, an elastic plate 33 is connected between the fastening portion 32 and the connecting portion 31 on the fixing block 3, the connecting portion 31, the elastic plate 33 and the fastening portion 32 are integrally configured, and the fastening portion 32 is expanded in the key groove by flexibility of the elastic plate 33 under adjustment of the adjusting block 5.

As shown in fig. 2 again, in this embodiment, the fixing block 3 is further provided with an adjusting device 6 connected to the adjusting block 5, the adjusting block 5 is a sphere, the adjusting block 5 moves in the opening groove 320 toward the notch of the opening groove 320 through the adjusting device 6, the adjusting block 5 is tightly attached to the wall of the opening groove 320, the cross-sectional area of the notch of the opening groove 320 is smaller than the cross-sectional area of the bottom of the opening groove 320, the adjusting block 5 gradually moves toward the notch of the opening groove 320 in the moving process, the notch of the opening groove 320 is gradually opened, and the clamping portion 32 is gradually expanded, so as to be clamped in the key slot of the workpiece 100.

In another embodiment, the adjusting block 5 is a boss.

As shown in fig. 1 and 2, the measuring rod 2 is parallel to the central axis of the fixed block 3, and the measuring rod 2 is always parallel to the central axis of the fixed block 3 in the measuring process, so that the detection precision is ensured; be equipped with on mount pad 4 and be used for the plug the mounting groove 40 of fixed block 3, mounting groove 40 for cooperate in the profile modeling groove of connecting portion 31, fixed block 3 can convenient and fast install in the mounting groove 40 of fixed block 3.

During detection, the fixing block 3 is placed in the key groove through the clamping part 32, the adjusting block 5 is adjusted through the adjusting device 6, the clamping part 32 is clamped in the key groove after expansion, the caliper device moves the measuring rod 2 to a safe distance on one side of the mounting seat 4 in an initial state, the fixing block 3 is mounted on the mounting seat 4 on the caliper device through the connecting part 31 and clamped in the mounting groove 40, the moving measuring rod 2 moves towards the workpiece 100 on the caliper body 1 to perform first measurement until one side of the measuring rod 2 abuts against the workpiece 100, the measuring rod 2 is tangent to the arc surface of the workpiece 100 at the moment, the measuring rod 2 is always parallel to the central axis of the fixing block 3 in the measurement process (as shown in fig. 3), and the reading of a display table on the caliper body 1 is recorded and returns to zero;

extract mount pad 4 from fixed block 3 again, fixed block 3 still blocks in the keyway, after 180 degrees of rotation with the calliper rule device, install fixed block 3 on the mounting groove 40 of mount pad 4 again, the measuring bar 2 of moving, carry out the second measurement, support work piece 100 until measuring bar 2, and tangent (as shown in figure 4) with the arc surface of work piece 100, look over the detection numerical value that shows on calliper rule body 1, compare with the reading of first measurement, thereby can detect the symmetry of keyway, because mounting groove 40 is the profile groove of connecting portion 31 on fixed block 3, connecting portion 31 can be along under the condition that the central axis of fixed block 3 is symmetrical structure, the mount pad is after 180 degrees of rotation, the distance of measuring bar 2 to fixed block 3 central axis equals, thereby can the accurate detection go out the symmetry of keyway, convenient and fast.

The present invention has been explained by using specific embodiments, and the explanation of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims

1. A caliper device for detecting the symmetry degree of a key groove is characterized by comprising a caliper body, wherein a measuring rod, a fixed block and a mounting seat of the fixed block are arranged on the caliper body, the fixed block is clamped in the key groove, the mounting seat is fixedly mounted on the caliper body and is positioned on one side of the measuring rod, the measuring rod can move towards the mounting seat on the caliper body, the fixed block is detachably mounted on the mounting seat, the fixed block is provided with a connecting part mounted on the mounting seat and a clamping part clamped in the key groove, the clamping part is provided with an open slot, and an adjusting block capable of enabling the clamping part to gradually expand is arranged in the open slot of the clamping part; the connecting parts are of symmetrical structures along the central axis of the fixed block.

2. The caliper device of claim 1, wherein an elastic plate is connected between the clamping portion of the fixed block and the connecting portion, the elastic plate, and the clamping portion are of an integral construction.

3. The caliper apparatus of claim 1 wherein the open slot notch has a cross-sectional area less than a cross-sectional area of the open slot floor.

4. The caliper device according to claim 3, wherein the fixing block is further provided with an adjusting device connected with the adjusting block, and the adjusting block is moved in the opening groove towards the notch of the opening groove by the adjusting device.

5. The caliper device of claim 4, wherein the adjusting block is a sphere or a boss, and the adjusting block is tightly attached to the wall of the open slot.

6. The caliper device of claim 1 wherein said measuring bar is parallel to a central axis of said fixed block.

7. The caliper device according to claim 1, wherein the mounting seat is provided with a mounting groove for inserting and pulling the fixing block, and the mounting groove is a contour groove fitted to the connecting portion.