CN107378638B - Contact tool setting appearance structure - Google Patents
Contact tool setting appearance structure Download PDFInfo
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- CN107378638B CN107378638B CN201710763088.6A CN201710763088A CN107378638B CN 107378638 B CN107378638 B CN 107378638B CN 201710763088 A CN201710763088 A CN 201710763088A CN 107378638 B CN107378638 B CN 107378638B
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- tool setting
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machine Tool Sensing Apparatuses (AREA)
Abstract
The utility model provides a contact tool setting appearance structure, solves the lathe main shaft of centre gripping cutter when the tool setting, because tool setting appearance insurance part is malfunctioning, causes the damage of tool setting appearance and lathe main shaft, and tool setting appearance part includes: a low precision tool setting gauge portion and a high precision tool setting gauge portion; the low precision tool setting gauge section includes: the touch switch comprises a touch rod, a group of touch switches and a shell, wherein the touch rod is slidably arranged in a touch rod mounting hole on the shell, a touch rod reset spring is arranged at the bottom of the touch rod mounting hole, the group of touch switches are arranged on the shell in parallel along the axis direction of the touch rod, a contact of the touch switch is contacted with the touch rod in the touch rod mounting hole, the group of touch switches are electrically connected with a control part, and a low-precision tool setting instrument part and a high-precision tool setting instrument part are arranged in the same direction. The beneficial effects are that: the low-precision tool setting gauge part is simple in structure and low in cost, and the protection of the high-precision tool setting gauge part, the machine tool spindle and the cutter is better realized.
Description
Technical Field
The invention relates to a machine tool measuring assembly, in particular to a contact tool setting gauge structure.
Background
The tool setting gauge is equipment for numerical control machine tool setting, and compared with manual tool setting, the tool setting gauge has high tool setting precision and high speed, and the workpiece does not need to be subjected to trial cutting during tool setting. In the prior art, the contact tool setting gauge needs a cutter to touch the tool setting gauge to finish accurate measurement of the position of the cutter, and after finishing tool setting in a certain direction, a cutter spindle receives a signal for stopping movement in the direction and the time for stopping movement actually is needed, so the tool setting gauge has a certain design (safety) distance. When tool setting is performed in the axial direction of the machine tool spindle, a safety device in the tool setting gauge is faulty or the sensitivity of stopping movement of the machine tool spindle is insufficient, the tool setting gauge can be damaged by the machine tool spindle and the cutter, and even the machine tool spindle and the cutter are damaged. The tool setting process of the contact tool setting gauge in the prior art is that the tool is firstly set, then the main shaft of the machine tool is stopped moving under the action of the safety device, and the tool setting gauge is inevitably damaged as long as the safety device fails or the communication between the safety device and the numerical control system of the machine tool fails. In order to avoid the risk of collision damage of the tool setting gauge, the tool and the machine tool, which are expensive, it is necessary to protect the tool when the tool is set in a direction perpendicular to the mounting base surface of the tool setting gauge.
Disclosure of Invention
The invention aims to solve the technical problem that the tool setting gauge is absolutely safe, and the phenomenon that the tool setting gauge is damaged by a main shaft of a machine tool and a cutter is very serious in the prior art. The method for solving the problem that the tool setting gauge is damaged by the main shaft of the machine tool and the cutter is contrary to the thought of the prior art, the cutter firstly contacts the safety device and then contacts the tool setting gauge, so that the absolute safety of the tool setting gauge is realized. The height positions of the main shaft and the cutter are roughly determined, the cutter passes through the safety device, the safety coefficient is improved by three times compared with that of a three-way safety device, and in case of failure, the cutter is a plastic device, the safety device is damaged, the damage to the main shaft can be reduced, and the absolute safety of the tool setting gauge is realized. The moving distance of the cutter after touching the tool setting gauge when the cutter is set in the direction of the axis of the main shaft of the machine tool is within the safe measuring range of the tool setting gauge, so that the main shaft of the machine tool, the tool setting gauge and the cutter are protected from being damaged.
The technical scheme adopted for solving the technical problems is as follows: a contact tool setting gauge structure comprising: casing part, tool setting appearance part and control portion, tool setting appearance part and frame fixed connection, tool setting appearance part include: a low precision tool setting gauge portion and a high precision tool setting gauge portion;
the low precision tool setting gauge part includes: the touch device comprises a touch rod, a group of touch switches and a shell, wherein the touch rod is slidably arranged in a touch rod mounting hole on the shell, a touch rod reset spring is arranged at the bottom of the touch rod mounting hole, and the touch rod is of a stepped shaft structure;
the touch switch is arranged on the shell in parallel along the axis direction of the touch rod, the contact of the touch switch is contacted with the touch rod in the touch rod mounting hole, and the touch switch is electrically connected with the control part;
the low-precision tool setting gauge part and the high-precision tool setting gauge part are arranged in the same direction.
The low precision of the low precision tool setting gauge means that the measurement precision cannot reach the tool setting precision required by the machine tool, but the precision is within the safety measurement range of the tool setting gauge. For convenience of writing and understanding, the "z axis" in this application refers to the direction in which the axis of the machine tool spindle is located.
The beneficial effects of the invention are as follows: due to the arrangement of the low-precision tool setting gauge part, the low-precision tool setting gauge part can finish rough tool setting and detect whether the safety device can work normally, namely, whether the main shaft of the machine tool stops moving or not. When the tool is set in the z-axis direction, the tool is preferentially set roughly by the low-precision tool setting instrument part, the tool length and the tool bit position of the tool are obtained at the moment, and the height difference between the low-precision tool setting instrument part and the high-precision tool setting instrument part is determined, so that the distance of movement of the tool in the z-axis direction when the tool is set in the high-precision tool setting instrument part is limited, the distance of movement of the tool in the z-axis direction is within the safety measurement range of the high-precision tool setting instrument part, and the protection of a main shaft of the tool, the high-precision tool setting instrument part and the tool is realized. Compared with the prior art, the invention detects whether the safety device can work normally in the low-precision tool setting instrument part, if not, only the low-precision tool setting instrument part is damaged, the main body of the low-precision tool setting instrument part is generally made of plastic, the cost is low, the damage to the main shaft and the cutter of the machine tool can be reduced, and the high-precision tool setting instrument part can not be damaged.
The low-precision tool setting gauge part provided by the invention has the advantages of simple structure and low cost, wherein two groups of anti-collision shutdown insurance are arranged, the low-precision tool setting gauge part is contacted firstly, and then the protection of the high-precision tool setting gauge part, the machine tool spindle and the cutter is better realized in precision tool setting.
The invention is further described below with reference to the drawings and detailed description.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional view of a low precision tool setting gauge portion;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
in the drawing, a high-precision tool setting gauge part 1-1 precision contact, a low-precision tool setting gauge part 2-1 contact rod, a 2-2 shell, a 2-3 contact rod mounting hole, a 2-4 touch switch, a 2-4-1 contact, a 2-4-2 push rod, a 2-4-3 push rod reset spring, a 2-4-4 conductive contact, a 2-5 contact rod reset spring, a 2-6 thick contact and a 3 base.
Description of the embodiments
Referring to fig. 1, 2 and 3, a contact tool setting gauge structure comprises: casing part, tool setting appearance part and control portion, tool setting appearance part and frame 3 fixed connection, tool setting appearance part include: a low precision tool setting gauge part 2 and a high precision tool setting gauge part 1;
the low precision tool setting gauge part 2 includes: the touch switch comprises a touch rod 2-1, a group of touch switches 2-4 and a shell 2-2, wherein the touch rod 2-1 is slidably arranged in a touch rod mounting hole 2-3 on the shell 2-2, a touch rod reset spring 2-5 is arranged at the bottom of the touch rod mounting hole 2-3, and the touch rod 2-1 is of a stepped shaft structure;
the group of touch switches 2-4 are arranged on the shell 2-2 in parallel along the axis direction of the touch rod 2-1, the contacts of the touch switches 2-4 are in contact with the touch rod 2-1 in the touch rod mounting holes 2-3, and the group of touch switches 2-4 are electrically connected with the control part;
the low-precision tool setting gauge part 1 and the high-precision tool setting gauge part 2 are arranged in the same direction.
When the tool setting operation in the z-axis direction is actually performed, the tool is firstly roughly set at the position of the low-precision tool setting instrument part 2, the tool of the numerical control machine tool contacts the touch rod 2-1, the touch rod 2-1 moves downwards, the touch rod 2-1 is a stepped shaft, the shaft shoulder part of the touch rod 2-1 enables the touch switch to act, and the control part receives the z-axis height information of the tool and transmits the z-axis height information to the numerical control system of the machine tool. Since the precision of the low precision tool setting portion 2 is not high, a tool is also required to accurately set the tool at the high precision tool setting portion 1. The numerical control system processes the received z-axis height information of the tool and limits the distance that the tool moves from the position received in the low-precision tool setting part 2 to at most the z-axis base 3 direction, wherein the distance is the height difference between the low-precision tool setting part 2 and the high-precision tool setting part 1 plus the safety measurement distance of the high-precision tool setting part 1, so that the tool can be ensured not to damage the high-precision tool setting part 1, the machine tool spindle and the tool during tool setting in the z-axis direction. Considering the above limitation of the movement of the tool, the premise is that the movement stopping function of the machine tool spindle is required to be free from faults, when the touch switch is operated by the feeler lever 2-1, not only the height information of the tool clamped by the machine tool spindle is roughly measured, but also whether the machine tool spindle can receive the instruction of stopping movement is detected, whether the movement stopping is sensitive or not, and the condition that the machine tool spindle can smoothly stop movement is confirmed.
In the embodiment, a group of touch switches 2-4 are electrically connected with the control system, and the touch switches are used for a plurality of setting modes, namely single touch switch action, and meanwhile, the height information of a cutter clamped by a machine tool spindle is roughly measured, whether the stopping and moving functions of the machine tool spindle are faulty or not is detected, and a plurality of touch switches are arranged to increase the safety coefficient; the single touch switch can be operated, and only one of the functions of roughly measuring the height information of the cutter clamped by the machine tool spindle and detecting whether the movement stopping function of the machine tool spindle has faults or not is finished.
In order to facilitate the touch rod 2-1 to enable the touch switch 2-4 to act, the touch rod 2-1 is of a stepped shaft structure with a shoulder which is excessive in a round table.
In this embodiment, it is preferable that the height of the initial measurement state of the coarse contact 2-6 is greater than or equal to the height of the initial measurement state of the fine contact 1-1. Compared with the low-precision tool setting part 2, the height of the low-precision tool setting part 2 is lower than that of the high-precision tool setting part 1, the low-precision tool setting part 2 is higher than or as high as that of the high-precision tool setting part 1, so that a cutter is roughly set at the position of the low-precision tool setting part 2 and then is set at the high-precision tool setting part 1, a moving line is shorter, and tool setting time cost is reduced.
In this embodiment, further, the tact switch 2-4 includes: the contact 2-4-1, the push rod 2-4-2, the push rod reset spring 2-4-3, the two conductive contacts 2-4-4 and the switch shell 2-4-6; the push rod 2-4-2 and the switch shell 2-4-6 form movable connection along the axis of the push rod 2-4-2, the push rod return spring 2-4-3 is arranged between one end of the push rod 2-4-2 in the switch shell 2-4-6 and the switch shell 2-4-6, the other end of the push rod 2-4-2 is fixedly connected with the contact 2-4-1, and a touch switch structure for connecting or disconnecting the two conductive contacts 2-4-4 is formed by moving the push rod 2-4-2.
The contact rod 2-1 moves back and forth in the contact rod mounting hole 2-3 under the action of the cutter and the contact rod return spring 2-5, and because the contact rod 2-1 is a stepped shaft, the reciprocating motion of the shaft shoulder drives the push rod 2-4-2 of the touch switch 2-4 to also move back and forth along the axial direction of the push rod 2-4-2, and the back and forth motion of the push rod 2-4-2 is used for controlling the connection or disconnection of the two conductive contacts 2-4, and in the embodiment, the mode of realizing the back and forth motion of the push rod 2-4-2 to control the connection or disconnection of the two conductive contacts 2-4-4 in the attached figure 3 is as follows: the push rod 2-4-2 is a metal rod, and the movement of the push rod 2-4-4 causes the two conductive contacts 2-4-4 to be connected or disconnected.
The embodiment of the invention can also be adopted as follows: the two conductive contacts 2-4-4 are connected to the touch switch, and the back and forth movement of the push rod 2-4-2 is directly utilized to touch the touch switch, so that the back and forth movement of the push rod (2-4-2) is realized to control the connection or disconnection of the two conductive contacts 2-4-4.
The embodiment of the invention can also be adopted as follows: the two conductive contacts 2-4-4 are connected to the photosensitive switch, and the photosensitive part of the photosensitive switch is shielded by the back and forth movement of the push rod 2-4-2 to realize the control of the connection or disconnection of the two conductive contacts 2-4-4.
Claims (4)
1. A contact tool setting gauge structure comprising: the shell part, the tool setting gauge part and the control part are fixed with the machine base
Fixedly connected, its characterized in that:
the tool setting appearance part include: a low precision tool setting part (2) and a high precision tool setting part (1);
the low-precision tool setting gauge part (2) comprises: the touch switch comprises a touch rod (2-1), a group of touch switches (2-4) and a shell (2-2), wherein the touch rod (2-1) is slidably arranged in a touch rod mounting hole (2-3) on the shell (2-2), a touch rod reset spring (2-5) is arranged at the bottom of the touch rod mounting hole (2-3), and the touch rod (2-1) is of a stepped shaft structure;
the group of touch switches (2-4) are arranged on the shell (2-2) in parallel along the axis direction of the touch rod (2-1), the contacts of the touch switches (2-4) are in contact with the touch rod (2-1) in the touch rod mounting holes (2-3), and the group of touch switches (2-4) are electrically connected with the control part;
the low-precision tool setting gauge part (2) and the high-precision tool setting gauge part (1) are arranged in the same direction.
2. The contact tool setting gauge structure of claim 1, wherein: the contact rod (2-1) is of a stepped shaft structure with a circular shoulder.
3. The contact tool setting gauge structure of claim 1, wherein: the height of the initial measurement state of the coarse contact (2-6) is greater than or equal to the height of the initial measurement state of the fine contact (1-1).
4. The contact gauge structure of claim 1, wherein said tactile switch (2-4) comprises: the contact (2-4-1), the push rod (2-4-2), the push rod reset spring (2-4-3), the two conductive contacts (2-4-4) and the switch shell (2-4-6); the push rod (2-4-2) and the switch shell (2-4-6) form movable connection along the axis of the push rod (2-4-2), the push rod reset spring (2-4-3) is arranged between one end of the push rod (2-4-2) in the switch shell (2-4-6) and the switch shell (2-4-6), the other end of the push rod (2-4-2) is fixedly connected with the contact (2-4-1), and a touch switch structure for connecting or disconnecting the two conductive contacts (2-4-4) is formed by moving the push rod (2-4-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710763088.6A CN107378638B (en) | 2017-08-30 | 2017-08-30 | Contact tool setting appearance structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710763088.6A CN107378638B (en) | 2017-08-30 | 2017-08-30 | Contact tool setting appearance structure |
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| Publication Number | Publication Date |
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| CN107378638A CN107378638A (en) | 2017-11-24 |
| CN107378638B true CN107378638B (en) | 2023-05-05 |
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| CN201710763088.6A Active CN107378638B (en) | 2017-08-30 | 2017-08-30 | Contact tool setting appearance structure |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108500734B (en) * | 2018-05-28 | 2024-02-13 | 深圳市牧野精控机电有限公司 | Precise numerical control machine tool setting gauge |
| CN110722455B (en) * | 2018-07-16 | 2022-04-22 | 鸿准精密模具（昆山）有限公司 | Tool setting device and tool setting method thereof |
| CN113478297A (en) * | 2021-06-05 | 2021-10-08 | 深圳市正源翔工业智能有限公司 | Contact type Z-axis tool setting gauge |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3007343B1 (en) * | 1998-12-16 | 2000-02-07 | 鉄治 溝口 | Tool setting gauge |
| CN101623836B (en) * | 2009-07-28 | 2011-07-27 | 上海奈凯电子科技有限公司 | Ultra-thin tool checking instrument |
| CN102513621A (en) * | 2011-11-14 | 2012-06-27 | 中国石油大学(华东) | Z-axis tool setting gauge for digital control electric spark milling machine tool |
| CN203746717U (en) * | 2014-01-28 | 2014-07-30 | 苏州大学 | A two-stage signal generator for tool setting equipment of CNC machine tools |
| DE202016102144U1 (en) * | 2015-09-09 | 2016-06-24 | Construcciones Electromecanicas Del Ter , S.A. Coemter | Alignment mechanism for the counterblade of a beater knife machine |
| CN106553082B (en) * | 2015-09-24 | 2019-07-05 | 富鼎电子科技(嘉善)有限公司 | Automatic tool setting device |
| CN205523288U (en) * | 2016-03-13 | 2016-08-31 | 东莞市秦锐数控设备科技有限公司 | Two two main shafts of main shaft cnc engraving and milling machine are tool setting device simultaneously |
| CN205888728U (en) * | 2016-08-23 | 2017-01-18 | 中冶华天工程技术有限公司 | Novel simple and easy milling cutter tool setting device |
| CN106425688B (en) * | 2016-09-06 | 2018-05-11 | 柳州职业技术学院 | Combined mechanical tool setting gauge |
| CN106217134B (en) * | 2016-09-06 | 2018-03-09 | 柳州职业技术学院 | Interior circulation photoelectric type Z-axis tool setting instrument |
| CN207104510U (en) * | 2017-08-30 | 2018-03-16 | 孟庆周 | A kind of contact tool setting gauge structure |
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