CN111687687A - Tool setting device and method for rotary tool rest of numerical control lathe - Google Patents
Tool setting device and method for rotary tool rest of numerical control lathe Download PDFInfo
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- CN111687687A CN111687687A CN202010576320.7A CN202010576320A CN111687687A CN 111687687 A CN111687687 A CN 111687687A CN 202010576320 A CN202010576320 A CN 202010576320A CN 111687687 A CN111687687 A CN 111687687A
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- tool
- numerical control
- control lathe
- depth micrometer
- tool rest
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/20—Automatic control or regulation of feed movement, cutting velocity or position of tool or work before or after the tool acts upon the workpiece
- B23Q15/22—Control or regulation of position of tool or workpiece
Abstract
The invention relates to a tool setting device of a rotating tool rest of a numerical control lathe, which is used for carrying out tool setting on the rotating tool rest on the numerical control lathe, and comprises a bracket and a depth micrometer, wherein the bracket is arranged on the numerical control lathe, and a detection end of the depth micrometer is fixed and supported by the bracket, is opposite to the center of the rotating tool rest and is used for measuring the height of each tool of the rotating tool rest; the support comprises a base and a supporting rod, the base is fixedly connected with the numerically controlled lathe, the supporting rod is provided with a connecting hole, a locking piece is arranged on the wall of the connecting hole of the supporting rod, the connecting hole is used for allowing the detection end of the depth micrometer to extend into, and the locking piece is used for fixing the detection end of the depth micrometer; after a depth micrometer is installed and locked on the support, the height of each cutter of the rotary cutter frame is measured through the depth micrometer, cutter compensation parameters are calculated according to the difference, and the cutter compensation parameters are input into the numerical control machine tool to carry out cutter setting on the rotary cutter frame. Compared with the prior art, the invention has the advantages of high tool setting precision, stability, reliability, convenient manufacture, low cost and the like.
Description
Technical Field
The invention relates to the field of a rotating tool rest of a numerical control lathe, in particular to a tool setting device and method of the rotating tool rest of the numerical control lathe.
Background
The tool setting method for a plurality of cutters on a rotary tool rest of a numerical control lathe mainly comprises the following two methods.
1. Trial cutting method tool setting
Trial cutting tool setting is the most practical tool setting method. The process of cutter setting by the trial cutting method comprises the following steps:
after the workpiece and the cutter are clamped, the main shaft is driven to rotate, and the cutter rest is moved until the workpiece tries to cut a section of excircle. And then keeping the X coordinate unchanged, moving the cutter away from the workpiece, and measuring the diameter of the section of excircle. The position of the X origin of the workpiece coordinate system is obtained by automatically subtracting the diameter of the section of the excircle to be cut out in a trial mode from the current X coordinate of the cutter by the system when the position is input into the cutter length in the corresponding cutter parameter. And moving the cutter to trial cut one end face of the workpiece, inputting Z0 in the cutter width in the corresponding cutter parameter, and automatically subtracting the value input at the moment from the Z coordinate of the cutter by the system to obtain the position of the Z origin of the workpiece coordinate system.
In fact, finding the position of the origin of the workpiece in the machine coordinate system does not require the actual position of the point, but rather the position of the tool holder when the cutting edge point reaches (0, 0). The tool is set by the method without using a standard tool, and the tools to be used need to be well aligned before machining.
2. Automatic tool setting of tool setting gauge
The tool setting gauge is equipped on a plurality of lathes at present, and the error generated during measurement can be removed by using the tool setting gauge to set the tool, so that the tool setting precision is greatly improved. Because the tool setting gauge can automatically calculate the difference value between the tool length and the tool width of each tool and store the difference value into the system, only the standard tool is needed when other parts are machined, and thus, the time is greatly saved. It should be noted that the tool setting gauge is generally provided with a standard tool, and the standard tool is calibrated when the tool is set.
The automatic tool setting is realized by a tool tip detection system, the tool tip approaches to a contact type sensor at a set speed, when the tool tip contacts with the sensor and sends a signal, a numerical control system immediately records the coordinate value at the moment and automatically corrects a tool compensation value. The automatic tool setting process is shown in fig. 1.
The two tool setting methods respectively have the following defects:
1) the rotary tool post on a lathe is usually multi-station and can be provided with 6 or more turning tools. The tool setting efficiency of the trial cutting method is very low.
2) The automatic tool setting gauge has high automation degree, can realize the function of full-automatic tool setting, but cannot meet the requirement of high-precision machining. If the cost of the automatic Mabos tool setting gauge is high, the precision error of a processed product after tool setting is 0.03 mm; the requirement of the product for the machining precision of 0.02 mm cannot be met.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a tool setting device and a tool setting method for a rotary tool rest of a numerically controlled lathe, which have high tool setting efficiency and high precision.
The purpose of the invention can be realized by the following technical scheme:
a tool setting device of a rotary tool rest of a numerical control lathe is used for carrying out tool setting on the rotary tool rest on the numerical control lathe and comprises a support and a depth micrometer, wherein the support is installed on the numerical control lathe, and a detection end of the depth micrometer is fixed and supported by the support, is opposite to the center of the rotary tool rest and is used for measuring the height of each tool of the rotary tool rest;
the support comprises a base and a supporting rod, the base is fixedly connected with the numerical control lathe, the supporting rod is provided with a connecting hole, a locking piece is arranged on the wall of the connecting hole of the supporting rod, the connecting hole is used for allowing the detection end of the depth micrometer to extend into, and the locking piece is used for fixing the detection end of the depth micrometer;
and after the support is provided with a depth micrometer and locked by a locking part, the height of each cutter of the rotary cutter frame is measured by the depth micrometer, cutter compensation parameters are calculated according to the difference of the heights of the cutters, and the cutter compensation parameters are input into the numerical control machine tool to carry out cutter setting on the rotary cutter frame.
Further, the digital display precision of the depth micrometer is 1 micrometer.
Further, the micrometer for depth has a digital display function.
Further, the connecting hole is circular, the quantity of retaining member is a plurality of, retaining member evenly distributed be in on the connecting hole wall of bracing piece.
Further, the locking member is a latch.
Further, the locking member is a set screw.
Further, the base is fixedly connected with the numerically controlled lathe through a bolt.
Furthermore, the support is provided with a protrusion, the connecting hole is located in the center of the protrusion, the protrusion is located on one side, connected with the depth micrometer, of the support, and the bolt is located in the protrusion.
The invention also provides a tool setting method of the rotary tool rest of the numerical control lathe, which is used for carrying out tool setting on the rotary tool rest on the numerical control lathe, and the tool setting method comprises the following steps:
s1: installing a bracket on the numerical control lathe;
s2: acquiring a depth micrometer, and fixing the depth micrometer on a bracket, so that the detection end of the depth micrometer is aligned with the center of a rotating tool rest;
s3: controlling the rotation of the rotary tool rest through the numerical control lathe, enabling one tool position of the rotary tool rest to be over against the detection end of the depth micrometer, and detecting and recording the height of the tool position by the depth micrometer;
s4: repeatedly executing the step S3 until the depth micrometer detects and records the heights of all the cutter positions in the rotary cutter frame;
s5: calculating the difference value between each cutter position and a preset standard cutter position according to the heights of all cutter positions, thereby obtaining cutter compensation parameters;
s6: and inputting the tool compensation parameters into the numerical control lathe, and carrying out tool setting on the rotary tool rest.
Further, the step S3 is specifically: the rotating tool rest is controlled to rotate through the numerical control lathe, so that the tool tip of one tool position of the rotating tool rest is opposite to the detection end of the depth micrometer, the depth micrometer detects and records the height of the tool tip, and the height of the tool tip is used as the height of the tool position.
Compared with the prior art, the invention has the following advantages:
(1) the tool setting device of the numerical control lathe rotary tool rest can realize that 8 tools on the numerical control lathe rotary tool rest of an automatic line can be subjected to tool setting at one time, the digital display precision of a depth micrometer is 1 micrometer, and in actual use, the tool setting error can be guaranteed to be within 3 micrometers, and the tool setting precision is high;
the tool setting device has low modification cost on the numerical control lathe, and only needs to design and manufacture a bracket and purchase a high-precision digital display micrometer; the tool setting function can be realized by fixedly installing the bracket without a movable adjusting function, the structure is simple, the manufacture is convenient, and the cost is reduced;
(2) according to the invention, the detection end of the depth micrometer is fixed by the bracket, so that the detection stability of the detection end is ensured, and the reliability of subsequent tool setting is improved.
(3) The support fixes the detection end of the depth micrometer through the locking pieces, and the locking pieces are distributed on the connecting hole walls of the supporting rods uniformly, so that the stability of fixing the detection end of the depth micrometer is ensured.
(4) According to the invention, the bulge is arranged on the bracket, the size of the section of the bulge is matched with the size of the shell at the detection end of the depth micrometer, the contact area between the bracket and the depth micrometer is increased, the vertical support is provided, and the stability of the bracket for fixing the depth micrometer is improved.
(5) According to the tool setting method of the rotary tool rest of the numerical control lathe, the height of each tool position of the rotary tool rest of the numerical control lathe is detected through the depth micrometer, so that tool compensation parameters of each tool position are calculated, and tool setting is performed.
Drawings
FIG. 1 is a schematic structural diagram of a tool setting device of a rotary tool rest of a numerically controlled lathe according to the invention;
FIG. 2 is a schematic flow chart of a tool setting method of a rotary tool rest of a numerically controlled lathe according to the invention;
in the figure, 1, a rotary tool rest, 2, a tool, 3, a bracket, 31, a base, 32, a support rod, 33, a protrusion, 4 and a depth micrometer.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Example 1
As shown in fig. 1, the present embodiment provides a tool setting device for a rotary tool post of a numerically controlled lathe, which is used for performing tool setting on the rotary tool post 1 on the numerically controlled lathe, the tool setting device includes a bracket 3 and a depth micrometer, the bracket 3 is installed on the numerically controlled lathe, and a detection end of the depth micrometer is fixed and supported by the bracket 3, and is opposite to the center of the rotary tool post, so as to measure the height of each tool 2 of the rotary tool post;
the support 3 comprises a base 31 and a support rod 32, the base 31 is fixedly connected with the numerically controlled lathe, the support rod 32 is provided with a connecting hole, a locking piece is arranged on the wall of the connecting hole of the support rod 32, the connecting hole is used for allowing the detection end of the depth micrometer to extend into, and the locking piece is used for fixing the detection end of the depth micrometer;
a depth micrometer is installed on the support 3 and locked by a locking piece, the height of each knife 2 of the rotary knife rest 1 is measured through the depth micrometer, knife compensation parameters are calculated according to the difference value of the height of each knife 2, and the knife compensation parameters are input into the numerical control machine tool to carry out knife setting on the rotary knife rest 1.
The depth micrometer and the holder 3 will be described in detail below.
1. Depth micrometer
The depth micrometer has digital display precision of 1 micrometer and digital display function.
2. Support 3
The connecting holes are circular, the number of the locking pieces is multiple, and the locking pieces are uniformly distributed on the connecting hole walls of the supporting rods 32. The locking piece is a bolt or a set screw.
The base 31 is fixedly connected with the numerically controlled lathe through bolts.
The bracket 3 is provided with a bulge 33, the connecting hole is positioned in the center of the bulge 33, the bulge 33 is positioned on one side of the bracket 3 connected with the depth micrometer, and the bolt is positioned in the bulge 33.
Specifically, the depth micrometer 4 includes a main body and a probe end connected to each other, the main body is disc-shaped at a connection portion to which the probe end is connected, and the shape and size of the protrusion 33 correspond to those of the disc-shaped connection portion of the probe end.
In the embodiment, four bolts are used as locking parts and are uniformly distributed on the convex connecting hole wall. After the detection end of the depth micrometer is inserted into the connecting hole, the depth micrometer is fixed by locking the four bolts.
As shown in fig. 2, the embodiment further provides a tool setting method of the tool setting device using the above-mentioned rotary tool rest of the numerically controlled lathe, which includes the following steps:
s1: installing a bracket 3 on the numerical control lathe;
s2: acquiring a depth micrometer, and fixing the depth micrometer on the bracket 3, so that the detection end of the depth micrometer is aligned with the center of the rotating tool rest;
s3: controlling the rotation of the rotary tool rest through the numerical control lathe, enabling one tool position of the rotary tool rest to be over against the detection end of the depth micrometer, and detecting and recording the height of the tool position by the depth micrometer;
in this embodiment, the rotation of the rotary tool post is controlled by the numerically controlled lathe, so that the tool tip of one tool position of the rotary tool post faces the detection end of the depth micrometer, the depth micrometer detects and records the height of the tool tip, and the height of the tool tip is used as the height of the tool position.
S4: repeatedly executing the step S3 until the depth micrometer detects and records the heights of all the cutter positions in the rotary cutter frame;
s5: calculating the difference value between each cutter position and a preset standard cutter position according to the heights of all cutter positions, thereby obtaining cutter compensation parameters;
s6: and inputting the tool compensation parameters into a numerical control lathe, and carrying out tool setting on the rotary tool rest.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. A tool setting device of a rotary tool rest of a numerical control lathe is used for carrying out tool setting on the rotary tool rest (1) on the numerical control lathe and is characterized by comprising a support (3) and a depth micrometer (4), wherein the support (3) is installed on the numerical control lathe, and a detection end of the depth micrometer (4) is fixed and supported by the support (3), is just opposite to the center of the rotary tool rest and is used for measuring the height of each tool (2) of the rotary tool rest;
the support (3) comprises a base (31) and a support rod (32), the base (31) is fixedly connected with the numerical control lathe, the support rod (32) is provided with a connecting hole, a locking piece is arranged on the wall of the connecting hole of the support rod (32), the connecting hole is used for allowing the detection end of the depth micrometer to extend into, and the locking piece is used for fixing the detection end of the depth micrometer;
during use, a depth micrometer is installed on the support (3) and locked by the locking piece, the height of each cutter of the rotary cutter frame is measured through the depth micrometer, cutter compensation parameters are calculated according to the difference value of the heights of the cutters, and the cutter compensation parameters are input into the numerical control machine tool to carry out cutter setting on the rotary cutter frame.
2. The tool setting device for the rotary tool rest of the numerical control lathe according to claim 1, wherein the digital display precision of the depth micrometer is 1 micrometer.
3. The tool setting device for the rotary tool rest of the numerical control lathe according to claim 1, wherein the depth micrometer has a digital display function.
4. The tool setting device for the rotary tool rest of the numerical control lathe according to claim 1, characterized in that the connecting holes are circular, the number of the locking pieces is multiple, and the locking pieces are uniformly distributed on the wall of the connecting hole of the supporting rod (32).
5. The tool setting device for the rotary tool rest of the numerical control lathe according to claim 1, wherein the locking member is a latch.
6. The tool setting device for the rotary tool rest of the numerical control lathe according to claim 1, wherein the locking member is a set screw.
7. The tool setting device for the rotary tool rest of the numerical control lathe according to claim 1, characterized in that the base (31) is fixedly connected with the numerical control lathe through bolts.
8. The tool setting device for the rotary tool rest of the numerical control lathe according to claim 1, characterized in that the bracket (3) is provided with a protrusion (33), the connecting hole is positioned in the center of the protrusion (33), the protrusion (33) is positioned on the side where the bracket (3) is connected with the depth micrometer, and the locking piece is positioned in the protrusion (33).
9. A tool setting method of a rotary tool rest of a numerical control lathe is used for carrying out tool setting on the rotary tool rest on the numerical control lathe, and is characterized by comprising the following steps:
s1: a bracket (3) is arranged on the numerical control lathe;
s2: acquiring a depth micrometer, and fixing the depth micrometer on a bracket (3) so that the detection end of the depth micrometer is aligned with the center of a rotating tool rest;
s3: controlling the rotation of the rotary tool rest through the numerical control lathe, enabling one tool position of the rotary tool rest to be over against the detection end of the depth micrometer, and detecting and recording the height of the tool position by the depth micrometer;
s4: repeatedly executing the step S3 until the depth micrometer detects and records the heights of all the cutter positions in the rotary cutter frame;
s5: calculating the difference value between each cutter position and a preset standard cutter position according to the heights of all cutter positions, thereby obtaining cutter compensation parameters;
s6: and inputting the tool compensation parameters into the numerical control lathe, and carrying out tool setting on the rotary tool rest.
10. The method according to claim 9, wherein the step S3 is specifically: the rotating tool rest is controlled to rotate through the numerical control lathe, so that the tool tip of one tool position of the rotating tool rest is opposite to the detection end of the depth micrometer, the depth micrometer detects and records the height of the tool tip, and the height of the tool tip is used as the height of the tool position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010576320.7A CN111687687A (en) | 2020-06-22 | 2020-06-22 | Tool setting device and method for rotary tool rest of numerical control lathe |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010576320.7A CN111687687A (en) | 2020-06-22 | 2020-06-22 | Tool setting device and method for rotary tool rest of numerical control lathe |
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| CN111687687A true CN111687687A (en) | 2020-09-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115070479A (en) * | 2022-06-15 | 2022-09-20 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Lathe workpiece positioning device and method |
-
2020
- 2020-06-22 CN CN202010576320.7A patent/CN111687687A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115070479A (en) * | 2022-06-15 | 2022-09-20 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Lathe workpiece positioning device and method |
| CN115070479B (en) * | 2022-06-15 | 2023-12-08 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Lathe workpiece positioning device and method |
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Effective date of registration: 20220829 Address after: Middle section of Yellow River Avenue, Yanhu District, Yuncheng City, Shanxi Province, 044099 Applicant after: YUNCHENG PLATE-MARKING Co.,Ltd. Address before: No.398 Yuanguo Road, Shanghai International Auto City parts supporting industrial park, Anting Town, Jiading District, Shanghai, 201814 Applicant before: SHANGHAI YUNCHENG PLATE-MAKING Co.,Ltd. |