CN113635151A

CN113635151A - Fixed-angle limit mechanism and limit method for grinding machine

Info

Publication number: CN113635151A
Application number: CN202111019564.6A
Authority: CN
Inventors: 赵小健; 刘仲杰; 庞全禄; 寇玥; 张宝华; 赵红连; 郭津维
Original assignee: CNNC Tianjin Technology Development Co Ltd
Current assignee: CNNC Tianjin Technology Development Co Ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2021-11-12

Abstract

The invention discloses a fixed-angle limiting mechanism for a grinding machine and a limiting method. The limiting method is that the indication value of the spindle of the rotary grinding machine to the scale disc is close to a target angle, then a dial indicator fixed on a guide rail of the grinding machine is used for performing round-trip meter reading detection on two ends of the bevel edge of the calibration bulge with the same vertex angle as the target angle, and the spindle of the fine tuning grinding machine rotates to the position where the bevel edge of the calibration bulge of the limiting mechanism is fully parallel to a slide rail of the grinding machine according to the detection result. The device has simple structure, easy operation and high repeated positioning precision, and can ensure the consistent angle and height of the conical surface of the ground workpiece.

Description

Fixed-angle limiting mechanism and limiting method for grinding machine

Technical Field

The invention belongs to a positioning device and a positioning method for a grinding machine, and particularly relates to a fixed-angle limiting mechanism and a limiting method for the grinding machine.

Background

In the daily production of the mechanical industry, a spindle of a universal cylindrical grinding machine needs to be rotated by a certain angle by an unscheduled method of calibrating scale alignment by human eyes to process a workpiece with a conical surface of a certain angle, and the conical surface angle is required to have higher consistency. However, the repeatability of the human eye calibration is poor, and the consistency of the angle accuracy of the processed conical surface after the repeated calibration is poor. Therefore, a fixed-angle limiting method and mechanism are needed to be developed to improve the consistency of the angle of the machined conical surface after repeated positioning.

Disclosure of Invention

The invention aims to overcome the defect that the precision of the irregular human eye calibration is low in the prior art, and aims to provide a fixed angle limiting mechanism and a limiting method for a grinding machine, so that the spindle head is repeatedly rotated to a certain position to obtain higher repeated positioning precision, and the machined conical surface angle is ensured to have higher consistency.

The invention is realized by the following technical scheme:

the utility model provides a fixed angle stop gear for grinding machine, includes the base member, and preceding terminal surface top-down of base member forms I ~ III numbers calibration arch in proper order, and its rear end face forms and connects the arch, the protruding cross section of I numbers calibration arch and III numbers calibration is triangle-shaped, the protruding transversal rectangle of personally submitting of II numbers calibration, connect protruding and scale disc connection.

In the above technical scheme, the end face of the connecting bulge close to the scale disc is an arc surface, and the radian of the arc surface is attached to the outer circumference of the scale disc.

In the above technical solution, at least two through holes arranged in the transverse direction are formed on the connecting protrusion.

In the above technical scheme, the connecting projection is connected with the scale disc through a bolt passing through the through hole.

In the technical scheme, the cross sections of the No. I calibration bulge and the No. III calibration bulge are right-angled triangles.

In the technical scheme, the included angle between the front end face of the No. II calibration protrusion and the inclined plane of the No. I calibration protrusion is 3 degrees.

In the technical scheme, the included angle between the front end surface of the No. II calibration protrusion and the inclined surface of the No. III calibration protrusion is 30 degrees.

In above-mentioned technical scheme, bellied 3 apex angles of No. I calibration and the bellied 30 apex angles of No. III calibration are located different both sides.

In the technical scheme, the front end face of the No. II calibration protrusion is parallel to the sliding rail of the grinding machine.

A fixed angle limiting method for a grinding machine comprises the following steps: the indication value of a main shaft of the rotary grinding machine to a scale disc is close to a target angle, then a dial indicator fixed on a guide rail of the grinding machine is used for carrying out back and forth meter-making detection on two ends of the bevel edge of the calibration bulge with the same vertex angle as the target angle, and the main shaft of the fine-tuning grinding machine rotates to the position where the bevel edge of the calibration bulge of the limiting mechanism is fully parallel to a slide rail of the grinding machine according to the detection result.

The invention has the beneficial effects that:

the invention provides a fixed angle limiting mechanism for a grinding machine and a limiting method, which utilize a limiting block which is arranged on a main shaft head of the grinding machine and synchronously swings with the main shaft head and is provided with a bevel edge with a certain angle to slide back and forth along a sliding seat of a machine body, and simultaneously utilize a dial indicator arranged on the machine body to carry out high-precision detection on two ends of the bevel edge until the detection values are consistent, thereby realizing the fixed angle high-precision positioning of the main shaft head. The device has simple structure, easy operation and high repeated positioning precision, and can ensure the consistent angle and height of the conical surface of the ground workpiece.

Drawings

FIG. 1 is a perspective view of a fixed angle spacing mechanism for a grinding machine of the present invention;

FIG. 2 is a front view of a fixed angle spacing mechanism for a grinding machine of the present invention;

FIG. 3 is a top view of the fixed angle spacing mechanism for the grinding machine of the present invention;

FIG. 4 is a schematic view (front view) of the mounting position of the fixed angle spacing mechanism for the grinding machine of the present invention;

FIG. 5 is a schematic view (in plan view) of the mounting position of the fixed angle spacing mechanism for the grinding machine of the present invention;

FIG. 6 is a schematic view showing a state of use (-3 °) of the fixed angle limiting mechanism for the grinding machine of the present invention;

fig. 7 is a schematic view (30 °) showing a state of use of the fixed angle position limiting mechanism for a grinding machine according to the present invention.

Wherein:

1 base body 2I number calibration projection

No. 3 No. II calibration projection and No. 4 No. III calibration projection

5 connecting bulge 6 through hole

7 bolt 8 main shaft slide

9 grinding machine slide rail 10 scale disc

11 main shaft 12 percentage table.

For a person skilled in the art, other relevant figures can be obtained from the above figures without inventive effort.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the drawings of the specification.

Example 1

As shown in fig. 1 to 7, the fixed-angle limiting mechanism for the grinding machine comprises a base body 1, wherein a first calibration protrusion 2, a second calibration protrusion 3 and a third calibration protrusion 4 are sequentially formed on the front end surface of the base body 1 from top to bottom, a connecting protrusion 5 is formed on the rear end surface of the base body 1, the cross sections of the first calibration protrusion 2 and the third calibration protrusion 4 are right triangles, the cross section of the second calibration protrusion 3 is rectangular, and the front end surface of the second calibration protrusion 3 is parallel to a grinding machine slide rail 9;

the included angle between the front end face of the No. II calibrating bulge 3 and the inclined plane of the No. I calibrating bulge 2 is 3 degrees; the included angle between the front end face of the No. II calibration bulge 3 and the inclined plane of the No. III calibration bulge 4 is 30 degrees, and the 3-degree vertex angle of the No. I calibration bulge 2 and the 30-degree vertex angle of the No. III calibration bulge 4 are positioned on two different sides;

the connecting protrusion 5 is connected with the scale disc 10, the end face of the connecting protrusion 5 close to the scale disc 10 is an arc surface, the radian of the arc surface is attached to the periphery of the scale disc 10, at least two through holes 6 transversely arranged are formed in the connecting protrusion 5, and the bolt 7 penetrates through the through holes 6 to realize that the connecting protrusion 5 is connected with the scale disc 10.

Example 2

Based on the device of the embodiment 1, the fixed-angle limiting method for the grinding machine comprises the following steps:

as shown in fig. 6 or 7, the indication values from the main shaft 11 of the rotary grinding machine to the scale disc 10 are close to +3 degrees or-30 degrees, then the dial indicator 12 fixed on the guide rail 9 of the grinding machine is used for carrying out round-trip dial-up detection on two ends of the inclined edges of the No. I calibration bulge 2 (+ 3 degrees) or the No. III calibration bulge 4 (-30 degrees), and the main shaft 11 of the fine-tuning grinding machine rotates until the inclined edges of the calibration bulges of the limiting mechanism are fully parallel to the slide rail 9 of the grinding machine according to the detection result.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The applicant declares that the above description is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and it should be understood by those skilled in the art that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are within the scope and disclosure of the present invention.

Claims

1. The utility model provides a fixed angle stop gear for grinding machine which characterized in that: including base member (1), the preceding terminal surface of base member (1) forms I ~ III calibration arch (2 ~ 4), and its rear end face forms and connects arch (5), protruding (2) of I calibration and III calibration arch (4) cross section are triangle-shaped, II calibrations arch (3) are transversal to personally submit the rectangle, connect protruding (5) and scale disc (10) and be connected.

2. The fixed angle limiting mechanism for the grinding machine as claimed in claim 1, wherein: the end face of the connecting bulge (5) close to the scale disc (10) is an arc surface, and the radian of the arc surface is attached to the periphery of the scale disc (10).

3. The fixed angle limiting mechanism for the grinding machine as claimed in claim 2, wherein: at least two through holes (6) which are transversely arranged are formed on the connecting bulge (5).

4. The fixed angle limiting mechanism for the grinding machine as claimed in claim 3, wherein: the connecting bulge (5) is connected with the scale disc (10) through a bolt (7) penetrating through the through hole (6).

5. The fixed angle limiting mechanism for the grinding machine as claimed in claim 1, wherein: no. I calibration arch (2) and No. III calibration arch (4) cross section are right triangle.

6. The fixed angle limiting mechanism for the grinding machine as claimed in claim 5, wherein: the included angle between the front end face of the No. II calibration protrusion and the inclined plane of the No. I calibration protrusion (2) is 3 degrees.

7. The fixed angle limiting mechanism for the grinding machine as claimed in claim 6, wherein: the included angle between the front end face of the No. II calibration protrusion and the inclined plane of the No. III calibration protrusion (4) is 30 degrees.

8. The fixed angle limiting mechanism for the grinding machine as claimed in claim 7, wherein: no. 3 apex angles of the No. I calibration bulge (2) and No. 30 apex angles of the No. III calibration bulge (4) are located on two different sides.

9. The fixed angle limiting mechanism for the grinding machine as claimed in claim 1, wherein: the front end face of the No. II calibration bulge (3) is parallel to the grinding machine slide rail (9).

10. The limiting method applied to the fixed-angle limiting mechanism for the grinding machine of any one of claims 1 to 9 is characterized in that: the method comprises the following steps: the indication value from a main shaft (11) of the rotary grinding machine to a scale disc (10) is close to a target angle, then the dial indicator (12) fixed on a guide rail (9) of the grinding machine is used for carrying out round-trip meter reading detection on two ends of the bevel edge of the calibration bulge with the same vertex angle as the target angle, and the bevel edge of the calibration bulge, which rotates to a limiting mechanism, of the main shaft (11) of the fine adjustment grinding machine is fully parallel to a slide rail (9) of the grinding machine according to the detection result.