CN110125703B - Clamp locating pin mechanism capable of automatically adjusting and being repeatedly used - Google Patents
Clamp locating pin mechanism capable of automatically adjusting and being repeatedly used Download PDFInfo
- Publication number
- CN110125703B CN110125703B CN201910446729.4A CN201910446729A CN110125703B CN 110125703 B CN110125703 B CN 110125703B CN 201910446729 A CN201910446729 A CN 201910446729A CN 110125703 B CN110125703 B CN 110125703B
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- pin
- positioning
- control module
- locating
- counting module
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- 230000007246 mechanism Effects 0.000 title claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 238000012423 maintenance Methods 0.000 description 8
- 230000003993 interaction Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
Classifications
-
- 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
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/002—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders
-
- 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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
- G06M1/00—Design features of general application
- G06M1/27—Design features of general application for representing the result of count in the form of electric signals, e.g. by sensing markings on the counter drum
- G06M1/272—Design features of general application for representing the result of count in the form of electric signals, e.g. by sensing markings on the counter drum using photoelectric means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Automatic Assembly (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
The invention provides an automatic-adjustment reusable fixture locating pin mechanism, which is used for solving the technical problems of high production cost caused by large stock quantity of locating pins in the prior art; the positioning pin comprises a fixed end and a positioning end, wherein the outer side surface of the positioning end is an acting surface, and the acting surface comprises at least two continuously arranged positioning surfaces; the pin feeding device is fixedly connected with the fixed end and used for driving the positioning pin to move towards one side close to the positioning end along the length direction of the positioning pin; the control system comprises a control module and a first counting module, wherein the first counting module is electrically connected with the control module, when the locating pin positions a workpiece once, the first counting module counts once and sends the count to the control module, when the count of the first counting module reaches a preset use frequency threshold value in the control module, the control module sends a working instruction to the pin feeding device, the pin feeding device drives the locating pin to move to replace a locating surface, and the first counting module resets the count value.
Description
Technical Field
The invention relates to the technical field of workpiece positioning, in particular to an automatic-adjustment reusable fixture positioning pin mechanism.
Background
The locating pin on the fixture is used as a locating part and has a great effect in workpiece manufacture, at present, the locating pin is basically manufactured in a non-standard mode according to the manufacturing state of the workpiece and belongs to a vulnerable part on the fixture, after a period of use, the locating surface on the side face of the locating pin is worn, the locating is out of alignment and can only be replaced, so that in the actual production process, the locating pin replacement part is often needed to be prepared, the stock of the locating pin of the fixture is increased, the product cost is also increased, and the labor cost and time for maintenance are definitely increased and the production efficiency is reduced due to the fact that the locating surface of the locating pin is needed to be maintained regularly.
Disclosure of Invention
The invention provides an automatic-adjustment reusable fixture locating pin mechanism, which is used for solving the technical problems of high locating pin stock quantity and high production cost in the prior art.
The scheme for solving the technical problems is as follows: an automatically adjusting reusable clamp dowel mechanism, comprising:
the positioning pin comprises a fixed end and a positioning end, the outer side surface of the positioning end is an acting surface, and the acting surface comprises at least two positioning surfaces which are continuously arranged along the length direction of the positioning pin;
the pin feeding device is fixedly connected with the fixed end and used for driving the positioning pin to move towards one side close to the positioning end along the length direction of the positioning pin;
the control system comprises a control module and a first counting module, wherein the first counting module is electrically connected with the control module, when the locating pin positions a workpiece once, the first counting module counts once and sends the count to the control module, when the count of the first counting module reaches a preset use frequency threshold value in the control module, the control module sends a working instruction to the pin feeding device, the pin feeding device drives the locating pin to move to replace a locating surface, and the first counting module resets the count value.
The invention provides an automatic adjusting reusable fixture locating pin mechanism, wherein the acting surface of a locating pin comprises at least two locating surfaces which are continuously arranged, when a new locating pin starts to work, the locating surface closest to the end part of a locating end is used, meanwhile, the locating surface starts to wear, a first counting module counts the locating times of the locating surface and sends the counting to a control module, when the counting reaches a preset using times threshold value in the control module, the control module sends a working instruction to a pin feeding device, the pin feeding device drives the locating pin to move to the locating end side so as to be replaced to the next locating surface, after the locating surface is replaced, the first counting module resets the counting value, the locating surfaces are sequentially circulated, the operation process is automatically replaced, the automatic adjustment of the locating surface is realized without manual operation of maintenance personnel under the condition that the production time is not delayed completely, the cost and time of manual maintenance are reduced, the pin is repeatedly used for a plurality of times due to the fact that the locating pin is provided with a plurality of locating surfaces, the production efficiency is reduced, and the production cost is improved.
The foregoing description is only an overview of the present invention, and is intended to provide a better understanding of the present invention, as it is embodied in the following description, with reference to the preferred embodiments of the present invention and the accompanying drawings. Specific embodiments of the present invention are given in detail by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a schematic diagram of the cooperation of a locating pin and a workpiece in an embodiment of the invention;
fig. 3 is a schematic block diagram of an electrical connection in an embodiment of the present invention.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention. The invention is more particularly described by way of example in the following paragraphs with reference to the drawings. Advantages and features of the invention will become more apparent from the following description and from the claims. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the invention.
As shown in fig. 1, the invention provides an automatically adjusting reusable fixture locating pin mechanism, which comprises a locating pin 1, a pin feeding device 2 and a control system 3.
Specifically, the positioning pin 1 includes a fixed end 11 and a positioning end 12, and the outer side surface of the positioning end 12 is an acting surface thereof, where the acting surface includes at least two positioning surfaces 121 continuously disposed along the length direction of the positioning pin 1.
Since the pin holes are made as through holes as possible for convenience in machining the pin holes and the positioning pins, in the embodiment, the positioning ends 12 of the positioning pins 1 need to pass through the workpiece 4 during positioning, it is preferable that the height of each positioning surface 121 is not less than the thickness of the workpiece 4 to be positioned.
Specifically, the pin feeding device 2 is fixedly connected with the fixed end 11, and is used for driving the positioning pin 1 to move along the length direction thereof to the side close to the positioning end 12.
Wherein the control system 3 comprises a control module 31 and a first counting module 32, the first counting module 32 is electrically connected with the control module 31, when the positioning pin 1 positions the workpiece 4 once, the first counting module 32 counts once and sends the count to the control module 31, when the count of the first counting module 32 reaches the preset usage frequency threshold in the control module 31, the control module 31 sends a working instruction to the pin feeding device 2, the pin feeding device 2 drives the positioning pin 1 to move so as to replace the positioning surface 121, and the first counting module 32 resets the count value.
In actual use, the counting mode of the first counting module can be properly adjusted according to different actual use scenes, and in this embodiment, the first counting module counts as follows: when the workpiece is positioned and corresponding operation (such as welding, riveting and stamping) is performed on the workpiece, after the corresponding operation tool (such as a welding device, a riveting device or a stamping device) completes a complete operation flow, a counting signal is sent to the first counting module once, and the first counting module counts once.
In other embodiments, the counting manner of the first technical module may be: a distance sensor or a light sensor is arranged near the workpiece positioning position, when the workpiece is positioned on the positioning pin, the corresponding sensor senses the change of the distance or the light, and then sends a primary counting signal to the first counting module, and the first counting module counts once.
It can be understood that the threshold value of the number of times of use of each positioning surface is determined according to the material, the size and the specification of the positioning pin, and the positioning pins corresponding to different materials, sizes or specifications are necessarily different; the control module is a PLC program with a comparator inside.
Specifically, the pin feeding device 2 includes a fixed plate 21, guide rails 22, a slider 23, and a driving assembly 24, the guide rails 22 are disposed on the fixed plate 21 along the length direction of the positioning pin 1, the slider 23 is mounted on the guide rails 22 in a matching manner, in this embodiment, two guide rails 22 are disposed on the fixed plate 21 at intervals in parallel, sliding grooves 231 are formed at positions of two sides of the slider 23 corresponding to the guide rails 22, and the slider 23 is mounted on the fixed plate 21 in a sliding manner through the matching of the sliding grooves 231 and the guide rails 22; the driving assembly 24 is used for driving the sliding block 23 to move along the guide rail 22, and the fixed end 11 of the positioning pin 1 is fixedly connected with the sliding block 23.
It is understood that the fixed end and the sliding block are fixedly connected, and the fixed end can be locked in the screw hole on the sliding block by forming a screw thread on one side of the fixed end and locking the screw thread of the fixed end in a welding mode.
More specifically, the driving assembly 24 includes a stepper motor 241 and a screw rod 242, the stepper motor 241 is electrically connected to the control module 31, one end of the screw rod 242 is drivingly connected to the output shaft of the stepper motor 241, the other end is threaded and movably connected to the slider 23, and the screw rod 242 rotates to drive the slider 23 to move along the guide rail 22.
In order to facilitate replacement of the positioning pins when all positioning surfaces on the positioning pins are used, the embodiment further comprises an alarm device 5 electrically connected with the control module 31, the control system 3 is internally provided with a second counting module 33 electrically connected with the control module 31, the second counting module 33 is used for counting the total number of times that each positioning pin 1 positions a workpiece 4 and sending the count of the total number of times to the control module, and when the count of the second counting module 33 reaches the limit use number times preset in the control module 31, the control module 31 sends an alarm instruction to the alarm device 5, wherein the limit use number times is the product of the number of positioning surfaces 121 on a single positioning pin 1 and the use number times threshold; when the locating pin 1 is replaced, the second counting module 33 resets the count.
Specifically, the alarm device 5 includes a buzzer 51 and a man-machine interaction interface 52, where the buzzer 51 and the man-machine interaction interface 52 are electrically connected to the control module 31.
The following specifically states the procedure of use of the present embodiment:
assuming that the number of locating surfaces on each locating pin is a, the threshold of the number of times of use of each locating surface is M, and the limit number of times of use of each locating pin is X, then x=a×m.
When a new locating pin is installed on the sliding block to start to be used, the first counting module counts the number of times of participation in locating of a locating surface nearest to the locating end as M and sends the M to the control module, the control module compares the count M with M, when the count M is equal to M, the control module sends a working signal to the stepping motor, the stepping motor rotates to push the sliding block to slide, the locating pin advances to one side close to the locating end, the locating surface is replaced, and meanwhile the first counting module counts and resets; the second counting module counts the total positioning times of the positioning pin as X and sends the X to the control module, the control module compares the count X with the X, when the count X is equal to the X, the control module sends an alarm signal to the alarm device, the buzzer sounds, a preset indication similar to 'please replace the positioning pin' appears on the man-machine interaction interface, and when an operator replaces a new positioning pin, the second counting module counts and resets and circulates in sequence.
The positioning surface is automatically replaced in the operation process, so that the positioning surface is automatically adjusted without delaying the production time, the manual operation of maintenance personnel is not needed, the cost and time of manual maintenance are reduced, and as one positioning pin is provided with a plurality of positioning surfaces, the repeated use of the positioning pin is realized, the inventory of the positioning pin is reduced, the production efficiency is improved, and the product cost is reduced; when the use limit of the locating pin is reached, an alarm can be sent out through the control system, so that on-site production maintenance personnel can arrange maintenance operation, maintenance planning is convenient to make, and production efficiency is improved.
In this embodiment, the control module adopts a PLC with model FX1N-60MT, and the human-computer interaction interface adopts a touch screen with model GOT 1000.
The above description is only of the preferred embodiments of the present invention, and is not intended to limit the present invention in any way; those skilled in the art will readily appreciate that the present invention may be implemented as shown in the drawings and described above; however, those skilled in the art will appreciate that many modifications, adaptations, and variations of the present invention are possible in light of the above teachings without departing from the scope of the invention; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present invention still fall within the scope of the present invention.
Claims (2)
1. An automatically adjusting reusable clamp dowel mechanism, comprising:
the positioning pin comprises a fixed end and a positioning end, the outer side surface of the positioning end is an acting surface, and the acting surface comprises at least two positioning surfaces which are continuously arranged along the length direction of the positioning pin;
the pin feeding device is fixedly connected with the fixed end and used for driving the positioning pin to move towards one side close to the positioning end along the length direction of the positioning pin;
the control system comprises a control module and a first counting module, wherein the first counting module is electrically connected with the control module, when the locating pin positions a workpiece once, the first counting module counts once and sends the count to the control module, when the count of the first counting module reaches a preset use frequency threshold value in the control module, the control module sends a working instruction to the pin feeding device, the pin feeding device drives the locating pin to move to replace a locating surface, and the first counting module resets the count value;
the pin feeding device comprises a fixed plate, a guide rail, a sliding block and a driving assembly, wherein the guide rail is arranged on the fixed plate along the length direction of the positioning pin, the sliding block is mounted on the guide rail in a matched manner, the driving assembly is used for driving the sliding block to move along the guide rail, and the fixed end of the positioning pin is fixedly connected with the sliding block;
the driving assembly comprises a stepping motor and a screw rod, the stepping motor is electrically connected with the control module, one end of the screw rod is in driving connection with an output shaft of the stepping motor, threads are formed at the other end of the screw rod and are movably connected with the sliding block through threads, and the screw rod rotates to drive the sliding block to move along the guide rail;
the control system is internally provided with a second counting module electrically connected with the control module, the second counting module is used for counting the total number of times of positioning workpieces by each positioning pin and sending the count of the total number of times to the control module, and when the count of the second counting module reaches the limit use number of times preset in the control module, the control module sends an alarm instruction to the alarm device, wherein the limit use number of times is the product of the number of the upper positioning pins and the use number threshold value; when the locating pin is replaced, the second counting module resets the count.
2. The automatically adjusting reusable fixture locating pin mechanism of claim 1, wherein the alarm device comprises a buzzer and a human-machine interface, both of which are electrically connected to the control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910446729.4A CN110125703B (en) | 2019-05-27 | 2019-05-27 | Clamp locating pin mechanism capable of automatically adjusting and being repeatedly used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910446729.4A CN110125703B (en) | 2019-05-27 | 2019-05-27 | Clamp locating pin mechanism capable of automatically adjusting and being repeatedly used |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110125703A CN110125703A (en) | 2019-08-16 |
| CN110125703B true CN110125703B (en) | 2024-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910446729.4A Active CN110125703B (en) | 2019-05-27 | 2019-05-27 | Clamp locating pin mechanism capable of automatically adjusting and being repeatedly used |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES315629A1 (en) * | 1964-07-22 | 1966-06-01 | Ass Eng Ltd | Method and apparatus for locating a casting preparatory to machining thereof |
| CN101537937A (en) * | 2009-04-17 | 2009-09-23 | 天津长荣印刷设备股份有限公司 | Gripper with location adjusting device and working method thereof |
| CN201416590Y (en) * | 2009-06-24 | 2010-03-03 | 重庆理工大学 | Positioning pin capable of being reused for times |
| CN102059496A (en) * | 2010-12-03 | 2011-05-18 | 天津天汽模车身装备技术有限公司 | Pneumatic propulsion device of welding fixture positioning pin for automobile body and work method thereof |
| CN203649725U (en) * | 2013-11-27 | 2014-06-18 | 塔奥（芜湖）汽车制品有限公司 | Workpiece locating and clamping device on clamp |
| CN108723281A (en) * | 2018-06-19 | 2018-11-02 | 卡斯马星乔汽车***（重庆）有限公司 | A kind of counting device and method for hand riveter |
-
2019
- 2019-05-27 CN CN201910446729.4A patent/CN110125703B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES315629A1 (en) * | 1964-07-22 | 1966-06-01 | Ass Eng Ltd | Method and apparatus for locating a casting preparatory to machining thereof |
| CN101537937A (en) * | 2009-04-17 | 2009-09-23 | 天津长荣印刷设备股份有限公司 | Gripper with location adjusting device and working method thereof |
| CN201416590Y (en) * | 2009-06-24 | 2010-03-03 | 重庆理工大学 | Positioning pin capable of being reused for times |
| CN102059496A (en) * | 2010-12-03 | 2011-05-18 | 天津天汽模车身装备技术有限公司 | Pneumatic propulsion device of welding fixture positioning pin for automobile body and work method thereof |
| CN203649725U (en) * | 2013-11-27 | 2014-06-18 | 塔奥（芜湖）汽车制品有限公司 | Workpiece locating and clamping device on clamp |
| CN108723281A (en) * | 2018-06-19 | 2018-11-02 | 卡斯马星乔汽车***（重庆）有限公司 | A kind of counting device and method for hand riveter |
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| Publication number | Publication date |
|---|---|
| CN110125703A (en) | 2019-08-16 |
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Address after: 430040 No. 9 Jin Bei Yi Road, Dongxihu District, Wuhan, Hubei Applicant after: Dongshi (Wuhan) Industrial Co.,Ltd. Address before: 430040 No. 9 Jin Bei Yi Road, Dongxihu District, Wuhan, Hubei Applicant before: DONGFENG (WUHAN) INDUSTRIAL Co.,Ltd. |
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