A light curtain measurement expansion and improvement device

Abstract

The utility model relates to a light curtain measurement expansion and improvement device, including a light curtain display panel, a displacement grating display, a light curtain, an X-axis moving fine-tuning mechanism, a clamping mechanism, a crossbeam and a column, the column is vertically arranged, the crossbeam is horizontally arranged and one end is fixed to the upper part of the column, the light curtain display panel and the displacement grating display are respectively arranged on both sides of the crossbeam, the light curtain is fixed under the crossbeam, the fixing mechanism is arranged under the light curtain, the workpiece whose taper is to be measured is fixed in position by the fixing mechanism, and the X-axis moving fine-tuning mechanism is transmission-connected with the clamping mechanism. The light curtain measurement expansion and improvement device of the utility model combines the light curtain with the X-axis moving fine-tuning mechanism, and improves the measurement accuracy of short cone parts by using the high resolution of the light curtain measurement, and improves the stability and consistency of the accuracy from the original accuracy beyond 60 arc seconds to the stability and consistency within 10 arc seconds, which is beneficial to the evaluation, debugging and detection of the processing quality, thereby further improving the matching accuracy of the tool cone surface.

Description

Technical Field

[0001] The utility model relates to the field of measuring devices, in particular to a light curtain measurement expansion and improvement device. Background Art

[0002] At present, the measurement accuracy of short tapers of tool holders such as reamers is greater than 60 arc seconds, which is relatively poor. Generally, three-coordinate measuring machines and projectors cannot obtain relatively stable measurement results. The accuracy of light curtain measurement is very high, reaching 0.2um, but it can only measure a single diameter of the product and cannot measure the taper. Utility Model Content

[0003] In order to solve the technical problems existing in the prior art, the utility model provides a light curtain measurement expansion and improvement device to improve the measurement accuracy of a tool cone.

[0004] To achieve the above purpose, the technical solution of the utility model is as follows:

[0005] A light curtain measurement expansion and improvement device comprises a light curtain display panel, a displacement grating display, a light curtain, an X-axis movement fine-tuning mechanism, a clamping mechanism, a crossbeam and a column, wherein the column is arranged vertically, the crossbeam is arranged horizontally and one end is fixed to the upper part of the column, the light curtain display panel and the displacement grating display are arranged on both sides of the crossbeam respectively, the light curtain is fixed under the crossbeam, the fixing mechanism is arranged under the light curtain, the workpiece whose taper is to be measured is fixed in position by the fixing mechanism, and the X-axis movement fine-tuning mechanism is transmission-connected to the clamping mechanism.

[0006] As a preferred technical solution, the clamping mechanism includes a left ejector, a right ejector, a left ejector seat and a right ejector seat. The workpiece to be measured for taper is clamped between the left ejector and the right ejector. The left ejector is installed on the left ejector seat, and the right ejector is installed on the right ejector seat.

[0007] As a preferred technical solution, a slide groove in the X-axis direction is provided below the clamping mechanism, and the clamping mechanism is slidably connected to the slide groove.

[0008] As a preferred technical solution, the X-axis movement fine-tuning mechanism includes an X-axis movement fine-tuning knob and an X-axis transmission unit, and the X-axis movement fine-tuning knob drives the clamping mechanism to slide on the slide groove through the X-axis transmission unit.

[0009] As a preferred technical solution, the device also includes a Y-axis movement fine-tuning mechanism, which is transmission-connected to the light curtain via a column and a beam.

[0010] As a preferred technical solution, the Y-axis movement fine-tuning mechanism includes a Y-axis movement fine-tuning knob and a Y-axis transmission unit, and the Y-axis movement fine-tuning knob is transmission-connected to the column via the Y-axis transmission unit.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The light curtain measurement expansion and improvement device of the utility model combines the light curtain with the X-axis moving fine-tuning mechanism, thereby realizing the expansion of the single diameter measurement of the workpiece to the measurement of the taper. The high resolution of the light curtain measurement is used to improve the measurement accuracy of the previous short cone parts, and the accuracy stability and consistency of the prior art is improved from more than 60 arc seconds to a stable consistency within 10 arc seconds, which is beneficial to the evaluation, debugging and detection of the processing quality, thereby further improving the matching accuracy of the tool taper surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the light curtain measurement expansion and improvement device of the utility model;

[0014] Figure 2 It is a schematic diagram of left and right ejector pins clamping a workpiece in the light curtain measurement expansion and improvement device of the utility model.

[0015] In the figure: 1. light curtain display panel; 2. displacement grating display; 3. light curtain; 4. X-axis movement fine-tuning knob; 5. Y-axis movement fine-tuning knob; 6. left ejector; 7. right ejector; 8. left ejector seat; 9. right ejector seat; 10. workpiece; 11. beam; 12. column. DETAILED DESCRIPTION

[0016] The technical solution of the utility model is further described below in conjunction with specific implementation methods:

[0017] like Figure 1 As shown, a light curtain 3 measurement expansion and improvement device includes a light curtain display panel 1, a displacement grating display 2, a light curtain 3, an X-axis movement fine-tuning mechanism, a clamping mechanism, a beam 11 and a column 12, the column 12 is vertically arranged, the beam 11 is horizontally arranged and one end is fixed to the upper part of the column 12, the light curtain display panel 1 and the displacement grating display 2 are respectively arranged on both sides of the beam 11, the light curtain 3 is fixed under the beam 11, the fixing mechanism is arranged under the light curtain 3, the workpiece 10 whose taper is to be measured is fixed within the measurement range of the light curtain 3 by the fixing mechanism, and the X-axis movement fine-tuning mechanism is transmission-connected with the clamping mechanism to control the movement of the workpiece 10 along the X-axis direction.

[0018] The clamping mechanism comprises a left ejector pin 6 , a right ejector pin 7 , a left ejector pin seat 8 and a right ejector pin seat 9 . The workpiece 10 whose taper is to be measured is clamped between the left ejector pin 6 and the right ejector pin 7 . The left ejector pin 6 is mounted on the left ejector pin seat 8 , and the right ejector pin 7 is mounted on the right ejector pin seat 9 .

[0019] A slide groove in the X-axis direction is provided below the clamping mechanism. The X-axis movement fine-tuning mechanism includes an X-axis movement fine-tuning knob 4 and an X-axis transmission unit. The X-axis movement fine-tuning knob 4 drives the clamping mechanism to slide on the slide groove through the X-axis transmission unit. By turning the X-axis movement fine-tuning knob 4, the X-axis transmission unit drives the clamping mechanism to slide along the slide groove, driving the workpiece 10 to move in the X-axis direction.

[0020] The device further includes a Y-axis movement fine adjustment mechanism, which is transmission-connected to the light curtain 3 through the column 12 and the crossbeam 11. Specifically, the Y-axis movement fine adjustment mechanism includes a Y-axis movement fine adjustment knob 5 and a Y-axis transmission unit, and the Y-axis movement fine adjustment knob 5 is transmission-connected to the column 12 through the Y-axis transmission unit. The Y-axis movement fine adjustment mechanism is used to adjust the relative position of the workpiece 10 and the light curtain 3 so that the workpiece 10 is located within the measurement range of the light curtain 3.

[0021] The operation method of the light curtain 3 measurement expansion and improvement device includes the following steps:

[0022] Step 1: The left ejector pin 6 and the right ejector pin 7 of the clamping mechanism are respectively pressed against the two ends of the workpiece 10, so that the workpiece 10 is clamped and fixed, and the position of the workpiece 10 is adjusted to within the measuring range of the light curtain 3 by the X-axis moving fine adjustment mechanism and the Y-axis moving fine adjustment mechanism, and a minimum indication response of 0.2 microns is obtained;

[0023] Step 2: Measure the diameter d1 of the large end of the taper of the workpiece 10, turn the X-axis moving fine adjustment knob 4, drive the clamping mechanism to slide along the slide slot through the X-axis transmission unit, so that the small end of the taper of the workpiece 10 is within the measuring range of the light curtain 3, and obtain the diameter d2 of the small end of the taper of the workpiece 10;

[0024] Step 3: Get the X-axis measurement value L from the displacement grating display 2; (the displacement distance is equal to the length of the workpiece 10 tapers)

[0025] Step 4: Calculate the taper of the workpiece 10 through a function. The calculation formula of the taper is: 2×ATAN[(d1-d2) / 2 / L].

[0026] The device is used to measure the 10-degree taper of a workpiece, and a consistent taper measurement accuracy of less than 10 arc seconds can be achieved.

[0027] This embodiment is only a further explanation of the present invention, not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed, but as long as it is within the scope of the claims of the present invention, it will be protected by the patent law.

Claims

1. A light curtain measurement expansion and improvement device, characterized in that: It includes a light curtain display panel, a displacement grating display, a light curtain, an X-axis movement fine-tuning mechanism, a clamping mechanism, a crossbeam and a column. The column is vertically arranged, the crossbeam is horizontally arranged and one end is fixed to the upper part of the column, the light curtain display panel and the displacement grating display are respectively arranged on both sides of the crossbeam, the light curtain is fixed under the crossbeam, the clamping mechanism is arranged under the light curtain, the workpiece whose taper is to be measured is fixed in position by the clamping mechanism, and the X-axis movement fine-tuning mechanism is transmission-connected to the clamping mechanism.

2. The light curtain measurement expansion and improvement device according to claim 1 is characterized in that: The clamping mechanism comprises a left ejector, a right ejector, a left ejector seat and a right ejector seat. The workpiece whose taper is to be measured is clamped between the left ejector and the right ejector. The left ejector is mounted on the left ejector seat, and the right ejector is mounted on the right ejector seat.

3. The light curtain measurement expansion and improvement device according to claim 1 is characterized in that: A slide groove in the X-axis direction is provided below the clamping mechanism, and the clamping mechanism is slidably connected to the slide groove.

4. The light curtain measurement expansion and improvement device according to claim 3 is characterized in that: The X-axis movement fine-tuning mechanism comprises an X-axis movement fine-tuning knob and an X-axis transmission unit, and the X-axis movement fine-tuning knob drives the clamping mechanism to slide on the slide slot through the X-axis transmission unit.

5. The light curtain measurement expansion and improvement device according to claim 1 is characterized in that: The device also includes a Y-axis movement fine-tuning mechanism, and the Y-axis movement fine-tuning mechanism is transmission-connected to the light curtain through a column and a crossbeam.

6. The light curtain measurement expansion and improvement device according to claim 5, characterized in that: The Y-axis movement fine-tuning mechanism comprises a Y-axis movement fine-tuning knob and a Y-axis transmission unit, and the Y-axis movement fine-tuning knob is transmission-connected to the column via the Y-axis transmission unit.

Images