CN212620670U

CN212620670U - Electric measuring instrument

Info

Publication number: CN212620670U
Application number: CN202021473265.0U
Authority: CN
Inventors: 李旭杰
Original assignee: Source Of United States And Sanmenxia Testing Instrument Co ltd
Current assignee: Source Of United States And Sanmenxia Testing Instrument Co ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-02-26
Anticipated expiration: 2030-07-23

Abstract

The utility model relates to an electronic volume appearance, the on-line screen storage device comprises a base, the vertical stand that is equipped with of its upper surface one end, one side that the stand top is close to the base is equipped with the crossbeam, vertical and rotation is equipped with the pivot on the crossbeam, the pivot bottom extends to crossbeam below and this end links firmly has horizontal electric putter, horizontal electric putter free end links firmly has vertical electric putter, one side that vertical electric putter free end is close to the pivot has set firmly the measuring head, it is equipped with the carousel to rotate on the base of pivot below, carousel and the coaxial setting of pivot, it has four group's anchor clamps to be circumference interval equipartition on the carousel upper surface week, anchor clamps include that backup pad and level of vertical setting set firmly the hydro-cylinder in the backup pad, the piston rod. The utility model discloses can firmly the clamping work piece, can adjust the measuring head position in a flexible way, can realize two kinds of measurement modes of measuring head gyration and work piece gyration, improve its use convenience and measurement accuracy.

Description

Electric measuring instrument

Technical Field

The utility model belongs to the technical field of detecting instrument, concretely relates to electronic appearance that measures.

Background

The electric measuring instrument works by converting the measured change (linear displacement or angular displacement) into an electric signal, amplifying and calculating the electric signal by a circuit, and displaying the electric signal or controlling a certain actuating mechanism to act so as to finish the preset measuring purpose. The electric measuring instrument mainly comprises an electric micrometer, a static photoelectric microscope, a dynamic photoelectric microscope, a photoelectric collimator, an inductive comparator, a capacitive comparator, a contourgraph, a roundness meter and the like. The roundness measuring instrument is a measuring tool for measuring roundness errors of workpieces by using a rotating shaft method and is divided into a sensor rotating type and a workbench rotating type.

When the existing roundness measuring instrument is used for measuring a cylindrical workpiece, the following problems still exist: 1. the clamping of the workpiece is not stable enough, and the coaxial precision of the workpiece and the measuring head is low, so that the measuring error is large; 2. the measuring head is fixed in position, so that workpieces with different sizes are not convenient to measure, and the measuring head is not flexible and convenient to use and needs to be improved.

SUMMERY OF THE UTILITY MODEL

In view of this, an object of the present invention is to provide an electric measuring instrument, which can firmly clamp a workpiece, ensure the coaxiality of the workpiece and a measuring head, flexibly adjust the horizontal position and the vertical position of the measuring head, and realize two measuring modes of the rotation of the measuring head and the rotation of the workpiece, so as to solve the above problems.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides an electric measuring instrument, includes the base, the vertical stand that is equipped with of base upper surface one end, the one side level that the base is close to on the stand top has set firmly the crossbeam, vertical and rotation is equipped with the pivot on the crossbeam, the pivot bottom extends to crossbeam below and the horizontal electric putter of this end level fixedly connected with, the vertical electric putter of the vertical fixedly connected with of free end of horizontal electric putter, one side that vertical electric putter free end is close to the pivot has set firmly the measuring head, it is equipped with the carousel to rotate on the base of pivot below, carousel and the coaxial setting of pivot, it has four anchor clamps to be circumference interval equipartition on the carousel upper surface week, anchor clamps include the backup pad and the level of vertical setting and set firmly the hydro-cylinder in the backup pad, the piston rod of hydro-cylinder is towards carousel center place direction and.

Preferably, the top end of the rotating shaft extends to the upper part of the cross beam and is in transmission connection with a first motor.

Preferably, a connecting shaft is vertically and fixedly arranged at the center of the lower surface of the turntable, and the bottom end of the connecting shaft extends to the lower part of the base and is connected with a second motor in a transmission manner.

Preferably, the first motor and the second motor are both stepping motors, and the outside of the first motor and the outside of the second motor are both covered with a protective box.

Preferably, piston rods of the oil cylinders of the four groups of clamps stretch synchronously.

Preferably, a serrated rubber pad is arranged on one side of the clamping plate close to the center of the turntable.

Preferably, the four corners of the lower surface of the base are provided with support legs.

The utility model has the advantages that: the utility model relates to a rationally, simple structure: the arrangement of the four groups of clamps and the synchronous extension of the piston rods of the corresponding oil cylinders in the clamps can push the clamping plates to firmly clamp the workpiece, so that the clamping firmness and reliability of the clamps are greatly improved, the coaxiality of the workpiece and the rotating shaft is ensured, the measurement quality of the surface roundness of the workpiece is improved, and the measurement error is reduced. Meanwhile, the four groups of clamps can clamp workpieces with different sizes by matching, the clamping requirements of the workpieces with different sizes are met, the workpieces with different sizes are measured by matching, the application range is expanded, and the use flexibility and convenience of the device are greatly improved.

The vertical electric push rod is arranged, so that the position adjustment of the measuring head in the vertical direction can be realized, and the roundness measurement of the measuring positions with different heights on the workpiece can be conveniently carried out in a matched manner; the horizontal electric push rod is arranged, so that the position adjustment of the measuring head in the horizontal direction can be realized, the circular degree measurement can be conveniently carried out on workpieces with different diameters in a matched mode, the workpieces with different sizes can be conveniently measured, and the use flexibility and convenience of the device are further improved.

The rotation of pivot can drive the gyration of measuring head, can realize that the work piece is motionless and the measurement mode of measuring head gyration, and the rotation of carousel can drive the gyration of work piece, can realize the measurement mode that the measuring head is motionless and the work piece gyration, and two kinds of measurement modes can be realized to an equipment promptly, more make things convenient for the roundness measurement operation to the work piece, improve the use flexibility and the convenience of device greatly.

Drawings

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

fig. 2 is a schematic top view of the turntable of the present invention.

Reference numbers in the figures: 1 is the base, 2 is the landing leg, 3 is the stand, 4 is the crossbeam, 5 is the protective housing, 6 is first motor, 7 is the pivot, 8 is horizontal electric putter, 9 is vertical electric putter, 10 is the measuring head, 11 is the carousel, 12 is anchor clamps, 13 is the backup pad, 14 is the hydro-cylinder, 15 is the splint, 16 is the connecting axle, 17 is the second motor, 18 is the rubber pad.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments:

as shown in fig. 1 and 2, an electric measuring instrument includes a base 1, a vertical column 3 is vertically disposed at one end of the upper surface of the base 1, and a beam 4 is horizontally and fixedly disposed at one side of the top end of the vertical column 3, which is close to the base 1. The beam 4 is vertically and rotatably provided with a rotating shaft 7, so that the measuring head 10 can be driven to rotate, and the measuring mode that the workpiece is fixed and the measuring head 10 rotates can be realized. The bottom of pivot 7 extends to the below of crossbeam 4 and the horizontal electric putter 8 of this end horizontal fixedly connected with, the vertical electric putter 9 of the vertical fixedly connected with of the free end of horizontal electric putter 8, and one side that the free end of vertical electric putter 9 is close to pivot 7 has set firmly measuring head 10. Utilize the flexible of vertical electric putter 9, can realize the position control of the vertical direction of measuring head 10, be convenient for cooperate and carry out roundness measurement to the measuring position of co-altitude not on the work piece, and utilize the flexible of horizontal electric putter 8, can realize the position control of measuring head 10 horizontal direction, be convenient for cooperate and carry out roundness measurement to the work piece of diameter variation to the convenience is measured the work piece of equidimension not, improves the use flexibility and the convenience of device greatly. The base 1 below the rotating shaft 6 is provided with the rotating disc 11 in a rotating mode, so that the rotation of a workpiece can be driven, the measurement mode that the measuring head 10 does not move and the workpiece rotates can be realized, and the measurement mode that the measuring head rotates while the workpiece does not move can be realized. The turntable 11 and the rotating shaft 7 are coaxially arranged, and four groups of clamps 12 are uniformly distributed on the circumference of the upper surface of the turntable 11 at intervals. The clamp 12 comprises a vertically arranged support plate 13 and an oil cylinder 14 horizontally and fixedly arranged on the support plate 13, and a piston rod of the oil cylinder 14 faces the direction of the center of the rotary table 11 and is fixedly connected with an arc-shaped clamping plate 15. During the use, the piston rod of the hydro-cylinder 14 of four group anchor clamps 12 is synchronous flexible to promote each splint 15 synchronous motion, the cooperation realizes pressing from both sides firmly to the work piece tightly, can improve the clamping fastness and the reliability of anchor clamps 12 greatly, guarantees the axiality of work piece and pivot 7, improves the measurement quality to work piece surface circularity, reduces measuring error. Meanwhile, the four groups of clamps 12 can clamp workpieces with different sizes in cooperation, clamping requirements of the workpieces with different sizes are met, the workpieces with different sizes are measured in cooperation, the use range is expanded, and the use flexibility and convenience of the device are greatly improved. The synchronous extension and retraction of the piston rods of the cylinders 14 can be realized by adopting the existing synchronous circuit with a hydraulic synchronous motor, which belongs to the prior art and is not described in detail.

In this embodiment, the top end of the rotating shaft 7 extends to the upper side of the cross beam 4 and is connected with the first motor 6 in a transmission manner, the first motor 6 is used for providing power to drive the rotating shaft 7 to rotate, and then the rotation of the measuring head 10 is realized. The center of the lower surface of the rotary table 11 is vertically and fixedly provided with a connecting shaft 16, the bottom end of the connecting shaft 16 extends to the lower part of the base 1 and is connected with a second motor 17 in a transmission manner, and the second motor 17 is used for providing power to drive the rotary table 11 to rotate so as to realize the rotation of a workpiece. First motor 6 and second motor 17 all adopt current step motor, and the measuring head 10 of being convenient for and carousel 11 gyration back a week automatic shutdown, also be convenient for utilize step motor's auto-lock, guarantee when not needing measuring head 10 or carousel 11 to rotate, measuring head 10 or carousel 11 can be stable motionless, do not influence the independence of two kinds of measuring modes and go on smoothly. The outside of first motor 6 and second motor 17 all covers and is equipped with guard box 5 for protect corresponding motor, improve its life.

In this embodiment, the side of the clamping plate 15 close to the center of the turntable 11 is provided with the serrated rubber pad 18, which can play a role in buffering, avoid the damage to the surface of the workpiece due to the excessive clamping force, increase the friction force, further improve the stability of the clamping effect on the workpiece, and ensure the measurement quality. The four corners of the lower surface of the base 1 are provided with support legs 2 for supporting the whole device.

The utility model discloses a theory of operation: the utility model discloses when using, measuring head 10 is connected with the information reception of current roundness measuring equipment electricity with handling the display device electricity, place the work piece on carousel 11 earlier, then hydro-cylinder 14 on four anchor clamps 12 of synchronous operation, make the synchronous extension of the piston rod of each hydro-cylinder 14, promote corresponding splint 15 and remove towards the work piece, through the cooperation of the corresponding splint 15 of four anchor clamps 12 of group, alright with the work piece firm clamp tight at the center of carousel 11, guarantee the axiality of work piece and pivot 7, improve measuring quality, reduce measuring error. Then, the horizontal electric push rod 8 and the vertical electric push rod 9 are operated, the horizontal position and the height of the measuring head 10 are adjusted through the matching of the horizontal electric push rod 8 and the vertical electric push rod 9, and finally the measuring head 10 is abutted to the position to be measured of the workpiece. Then, one of two measurement modes can be used for measurement as required, taking the example of the workpiece being stationary and the measuring head 10 being rotated back: the first motor 6 is operated to drive the rotating shaft 7 to rotate for a circle, so that the measuring head 10 rotates for a circle on the workpiece, measured data are transmitted to the information receiving and processing display equipment to be processed and finally displayed, and measurement is completed.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. An electric measuring instrument comprises a base, and is characterized in that one end of the upper surface of the base is vertically provided with a stand column, a cross beam is horizontally and fixedly arranged on one side of the top end of the upright post close to the base, a rotating shaft is vertically and rotatably arranged on the cross beam, the bottom end of the rotating shaft extends to the lower part of the cross beam, the end is horizontally and fixedly connected with a transverse electric push rod, the free end of the transverse electric push rod is vertically and fixedly connected with a vertical electric push rod, a measuring head is fixedly arranged on one side of the free end of the vertical electric push rod close to the rotating shaft, a rotating disc is rotatably arranged on the base below the rotating shaft, the rotary table is coaxial with the rotating shaft, four groups of clamps are evenly distributed on the circumference of the upper surface of the rotary table at intervals, the clamp comprises a vertically arranged support plate and an oil cylinder which is horizontally and fixedly arranged on the support plate, and a piston rod of the oil cylinder faces the direction of the center of the rotary table and is fixedly connected with an arc-shaped clamping plate.

2. The electric meter according to claim 1, wherein the top end of the spindle extends above the cross member and is drivingly connected to a first motor.

3. The electric measuring instrument according to claim 2, wherein a connecting shaft is vertically and fixedly arranged at the center of the lower surface of the rotary table, and the bottom end of the connecting shaft extends to the lower part of the base and is in transmission connection with a second motor.

4. The electric traffic instrument according to claim 3, wherein the first motor and the second motor are both step motors, and a shielding box is provided outside each of the first motor and the second motor.

5. The electric measuring instrument according to claim 1, wherein the piston rods of the cylinders of the four sets of clamps are synchronously extended and retracted.

6. The electric traffic instrument according to claim 1, wherein a serrated rubber pad is provided on a side of the chucking plate near the center of the turn table.

7. The electric traffic instrument according to claim 1, wherein the base lower surface is provided with legs at four corners.