TW201404519A - Bias adjustment structure of positioning measurement device - Google Patents

Abstract

This invention provides a bias adjustment structure of a positioning measurement device, mainly comprising a housing set, an adjustment component, and a measurement component. The adjustment component and the measurement component are disposed in the housing set. The adjustment component comprises at least one spring, a movable seat abutted against the at least one spring, and an adjustment rod disposed in the movable seat. The measurement component comprises a rotary seat and a probe connected with the rotary seat. The measurement component is abutted against the lower portion of the adjustment component through the rotary seat. This invention enables a probe of the measurement component to be abutted against a reference surface of a standard reference member to perform the correction, using the axial movement distance of the adjustment component to calculate the bias of the measurement component and to directly compensating the bias on a processing machine.

Description

Deviation adjustment structure of positioning measuring device

The invention relates to a measuring device, in particular to a deviation adjusting structure of a positioning measuring device.

The conventional positioning measuring device is usually used for measuring the starting point of the machine tool and adjusting the tool or correcting the use. Taking the CNC milling machine as an example, the positioning measuring device is usually mounted on the main shaft and rotates with the machine. Then, the positioning measuring device is moved and respectively contacted against the reference surface of the workpiece, and the processing origin of the workpiece is measured and calculated, and processed according to the program origin; Conventional positioning measuring devices may have gage errors due to temperature, stress or component assembly, but they cannot be zeroed or corrected as in the general gage itself to remove the error, and only zero or correction can be performed on the scale. Therefore, as the gage error gradually increases, there is a possibility that the measurement accuracy is not good, and there is a need for improvement and enhancement.

In order to solve the problem that the conventional positioning measurement device cannot be reset to zero or corrected, the measurement accuracy may be poor. The main object of the present invention is to provide a deviation adjustment structure of the positioning measurement device, aiming at the positioning measurement device. After the gage error has been calculated, the parameter correction is performed on the machine to solve the gage error problem.

The technical means used in the present invention is to provide a deviation adjustment structure of the positioning measurement device, comprising: An outer casing group includes a clamping seat and a ring cover coupled to the bottom of the clamping seat, the opening of the ring cover is defined, and the axial position of the outer casing group is defined as a Z-axis; An assembly, which is correspondingly disposed on the holder and capable of translational movement along the Z axis, the adjustment assembly includes a movable seat disposed inside the holder and axially movable, at least one against the support a compression spring between the inner portion and the movable seat, and a adjusting rod disposed inside the movable seat and being telescopically actuable, the adjusting rod has a slanting abutting surface at the bottom; a measuring component, The utility model is disposed inside the outer casing group and is disposed below the adjusting rod of the adjusting component, the measuring component comprises a rotatable rotating seat and a probe which is fixed to the rotating seat. The probe has an abutting portion on the top portion, and the probe abuts against the abutting surface of the adjusting rod, and the rotating base and the probe are moved to drive the translation of the adjusting component. Actuate.

The offset adjustment structure of the positioning measuring device, wherein the adjusting rod has an abutting post and a set of rods axially disposed on a top surface of the abutting post, the adjusting rod is attached to the set rod The sleeve is combined with a buffer spring to enable the adjustment rod to be stretched and actuated.

In the above-mentioned deviation measuring structure of the positioning measuring device, the adjusting rod is combined with the moving seat in a concave-convex manner, so that the adjusting rod does not rotate.

The offset adjustment structure of the positioning measuring device described above, wherein the moving seat has a class cylindrical shape and has a base and an extending handle axially connected to the top surface of the base.

The offset adjustment structure of the foregoing positioning measuring device, wherein the tuning group The two parts are respectively provided with two compression springs, respectively correspondingly abutting against the top surface of the extending handle of the moving seat and the top surface of the base.

The offset adjustment structure of the positioning measuring device, wherein the rotating seat has a semi-spherical shape, and the flat end is rotatably abutted against the bottom of the moving seat, and the spherical end faces the ring Cover the opening.

The invention utilizes the deviation adjustment structure of the provided positioning measuring device, and the power improvement can be obtained by measuring and correcting the reference surface of the measuring component contacting the standard component, and using the adjusting component to contact with the probe. The displacement caused by the time is known to the overall error of the measuring component, and can be corrected by parameter adjustment on the machine to eliminate the problem of the gage error, which is quite convenient and practical.

In order to be able to understand the technical features and practical functions of the present invention in detail, and in accordance with the contents of the specification, the present invention is further described in the following preferred embodiments. For the deviation adjustment structure, please refer to the preferred embodiment of FIG. 1 to FIG. 3, which includes a housing assembly 10, a calibration assembly 20, and a measurement assembly 30, wherein: as shown in FIG. 1 and FIG. The outer casing group 10 includes a clamping seat 11 and a ring cover 12, and the axial position of the outer casing group 10 is defined as a Z-axis, and the clamping seat 11 is a hollow cylindrical shell of a class cylindrical shape, and the clamping seat 11 A receiving handle 110 is formed on the upper end, and an opening 111 is formed in the bottom portion, and an accommodating space 112 communicating with the opening 111 is formed in the clamping seat 11 to form an outer peripheral surface of the bottom of the clamping seat 11. Threading, the ring cover 12 is coupled to the bottom of the clamping seat 11 and is closed to the opening 111 of the clamping seat 11, the ring The cover 12 defines an opening 121 that communicates with the accommodating space 112 at the central portion. The aligning assembly 20 is disposed corresponding to the accommodating space 112 of the cradle 11 as shown in FIG. 2 and FIG. The adjustment assembly 20 includes a movable seat 21, two compression springs 22, a calibration rod 23 and a buffer spring 24, and the movable seat 21 is a class cylinder. And the movable seat 21 has a base 211 and an extending handle 212 axially connected to the top surface of the base 211. The bottom of the base 211 has a column-like shape. The accommodating groove 213 is recessed in the side wall of the accommodating groove 213, and the two compression springs 22 respectively abut against the top surface of the extending shank 212 and the top surface of the base 211, and The movement seat 21 is axially translatable in the accommodating space 112 by the two compression springs 22; the adjustment rod 23 is correspondingly disposed on the accommodating space 112 of the holder 11 The shank 211 is disposed in the receiving slot 213, and the adjusting rod 23 has an abutting post 231 and is axially disposed on the abutting post 231. a set of rods 232 on the top surface, the abutting post 231 defines a slanting abutting surface 2311 at the bottom, and a peripheral groove 214 corresponding to the base 211 is formed on the outer peripheral surface of the abutting post 231. The clamping block 233, the adjusting rod 23 is sleeved on the sleeve 232 and coupled with the buffer spring 24, and the spring of the buffer spring 24 is actuated in the receiving groove 213, and the card is adjusted by the adjusting rod 23 The block 233 is inserted into the slot 214 of the base 211 so that the adjustment lever 23 does not rotate, and the movable seat 21 performs the same axial translation.

As shown in FIG. 2 and FIG. 3, the measuring assembly 30 is disposed inside the outer casing group 10 and is disposed below the adjusting rod 23 of the adjusting assembly 20, and the measuring assembly 30 includes a rotation. The seat 31 and the piercing are fixed to the rotating seat 31 a probe 32, which is semi-spherical, and has a flat end rotatably abuts against the bottom of the movable seat 21, and has a spherical end toward the opening 121 of the ring cover 12. And a mounting hole 311 is defined in the center, and the probe 32 is disposed and fixed to the mounting hole 311, and protrudes to the opening 121 of the ring cover 12 at one end. The probe 32 is in an upright cylindrical shape. And having two ends, wherein one end of the top portion is an abutting portion 321 and the other end is a probe portion 322, and the probe 32 is fixed by the abutting portion 321 against the adjusting rod 23 The abutting surface 2311 is used for measuring a workpiece, and the pressure of the probe 32 in contact with the workpiece is pressed against the calibration component 20 to generate displacement for measurement and error calculation.

A preferred embodiment of the present invention is shown in FIG. 4, which is capable of clamping and holding the holder 11 of the outer casing group 10 such that the probe 32 of the measuring assembly 30 abuts against a workpiece 40. The reference surface 41, by the contact of the probe 32 with the reference surface 41, causes the measuring component 30 to push the adjustment component 20 backwards, and the movable seat 21 of the calibration component 20 is generated along the Z axis. After a displacement distance, that is, the deviation of the workpiece 40 can be known, this is corrected.

As shown in FIG. 5 and FIG. 6 , it is a method for measuring the gage error of the present invention, and is used for a measuring component 30A which itself causes a gage error due to processing manufacturing, assembly or temperature difference and stress variation, wherein it is assumed The probe 32A generates a gage error in the horizontal direction due to a poor manufacturing process. Therefore, after the measurement of the error is performed, the gage error is corrected, as shown in FIG. 5, when the probe 32A contacts the reference of a workpiece 40A. When the surface 41A is used, the rotation process cannot be aligned with the reference surface 41A due to the error of the probe 32A itself, so the present invention is moved as shown in FIG. 6 until the probe 32A abuts against the reference surface 41A, and the The probe 32A is rotatable against the reference surface 41A, at this time, The rotating base 31A of the measuring assembly 30A will be displaced during rotation due to the error of the probe 32A itself, and because the abutting portion 321A of the probe 32A abuts against the tilting adjustment lever 23 The surface 2311 is contacted to cause the adjustment assembly 20 to generate a displacement in the Z-axis. Thus, the offset of the probe 32A itself can be obtained by converting the total displacement of the calibration assembly 20 in the Z-axis. After the correction needs to be adjusted on the machine, the gage error caused by the probe 32A itself can be compensated without replacing the probe 32A.

In addition to being able to measure the probe 32A having the gage error, the present invention can be measured and corrected in the same way as long as the components of the measuring component 30 have a gage error, which is quite practical. .

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any one of ordinary skill in the art can use the present invention without departing from the technical features of the present invention. Equivalent embodiments of the local changes or modifications made by the disclosed technology are still within the scope of the technical features of the present invention.

10‧‧‧ Shell group

11‧‧‧Clamping seat

110‧‧‧Clamping handle

111‧‧‧ openings

112‧‧‧ accommodating space

12‧‧‧ ring cover

121‧‧‧Opening

20‧‧‧Revising components

21‧‧‧Mobile seat

211‧‧‧Base

212‧‧‧Extension handle

213‧‧‧ accommodating slots

214‧‧‧ card slot

22‧‧‧Compression spring

23‧‧‧ adjustment rod

231‧‧‧Abutment column

2311‧‧‧Abutment

232‧‧‧ sets of rods

233‧‧‧Card block

24‧‧‧buffer spring

30‧‧‧Measurement components

31‧‧‧ rotating seat

311‧‧‧Installation holes

32‧‧‧ probe

321‧‧‧Neighboring

322‧‧‧ Probe Department

40‧‧‧Workpiece

41‧‧‧ datum

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an external view of a preferred embodiment of the present invention.

Figure 2 is an exploded view of a preferred embodiment of the present invention.

Figure 3 is a cross-sectional view of a preferred embodiment of the present invention.

Figure 4 is a schematic illustration of the measurement operation of the preferred embodiment of the present invention.

FIG. 5 is a schematic view showing the operation of the measuring component with the measurement error of the present invention when it is not against the reference surface.

FIG. 6 is a schematic diagram of the action of the measuring component with the measurement error of the invention against the reference surface and driving the calibration component.

10‧‧‧ Shell group

11‧‧‧Clamping seat

110‧‧‧Clamping handle

111‧‧‧ openings

112‧‧‧ accommodating space

12‧‧‧ ring cover

121‧‧‧Opening

20‧‧‧Revising components

21‧‧‧Mobile seat

211‧‧‧Base

212‧‧‧Extension handle

213‧‧‧ accommodating slots

214‧‧‧ card slot

22‧‧‧Compression spring

23‧‧‧ adjustment rod

231‧‧‧Abutment column

232‧‧‧ sets of rods

233‧‧‧fixed keys

24‧‧‧buffer spring

30‧‧‧Measurement components

31‧‧‧ rotating seat

311‧‧‧Installation holes

32‧‧‧ probe

321‧‧‧Neighboring

322‧‧‧ Probe Department

Claims (7)

A deviation adjusting structure of the positioning measuring device comprises: a housing group comprising a clamping seat and a ring cover coupled to the bottom of the clamping seat, the opening of the ring cover, and the outer casing The axial position of the group is defined as a Z-axis; a calibration component is correspondingly disposed on the clamping seat and is capable of translational movement along the Z-axis, the calibration component includes a setting inside the clamping seat and along the An axially actuating movable seat, at least one compression spring abutting between the inner portion of the support base and the movable seat, and a adjusting rod disposed inside the movable seat and being telescopically actuable, the adjusting rod has a a slanting abutment surface; a measuring assembly disposed inside the outer casing group and resting under the aligning rod of the aligning assembly, the measuring assembly including a rotatable rotating seat And a probe fixed to the rotating base, the probe has an abutting portion at the top, and the probe abuts against the abutting surface of the adjusting rod by using the rotating seat And moving the probe to drive the translation of the calibration component. The deviation adjustment structure of the positioning measuring device according to claim 1, wherein the adjustment rod has an abutting column and a set of rods axially disposed on a top surface of the abutting column, the adjustment rod The sleeve is sleeved with a buffer spring to enable the adjustment rod to be stretched and actuated. The offset adjustment structure of the positioning measuring device according to claim 2, wherein the adjusting rod and the moving base are combined and positioned in a concave-convex manner, so that the adjusting rod does not rotate. The deviation adjustment structure of the positioning measuring device according to claim 1, 2 or 3, wherein the moving seat is in a class cylindrical shape and has a base and a shaft An extension handle attached to the top surface of the base. The deviation adjusting structure of the positioning measuring device according to claim 4, wherein the adjusting component is provided with two compression springs respectively corresponding to the top surface of the extending handle of the moving seat and The top surface of the base. The deviation adjusting structure of the positioning measuring device according to claim 5, wherein the rotating seat has a semi-spherical shape, and the flat end is rotatably abutted against the bottom of the moving seat, and is spherical One end faces the opening of the ring cover. The deviation adjustment structure of the positioning measuring device according to claim 1, 2 or 3, wherein the rotating base is semi-spherical, and the flat end is rotatably abutted against the bottom of the moving seat. And the spherical end faces the opening of the ring cover.