CN103481078A - Device for eliminating positioning gap between workpiece and clamp - Google Patents
Device for eliminating positioning gap between workpiece and clamp Download PDFInfo
- Publication number
- CN103481078A CN103481078A CN201310461635.7A CN201310461635A CN103481078A CN 103481078 A CN103481078 A CN 103481078A CN 201310461635 A CN201310461635 A CN 201310461635A CN 103481078 A CN103481078 A CN 103481078A
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- China
- Prior art keywords
- workpiece
- base
- fixture
- push rod
- hole
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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
- 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
- B23Q3/10—Auxiliary devices, e.g. bolsters, extension members
- B23Q3/106—Auxiliary devices, e.g. bolsters, extension members extendable members, e.g. extension members
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a device for eliminating the positioning gap between a workpiece and a clamp. The device comprises a base, a threaded hole for pressing the base is formed in the plane, in contact with the clamp, of the base, and an installation hole is formed in the upper end, close to the top, of the base. The end, away from the workpiece, of the installation hole is provided with the threaded hole in a machined mode, and the rest holes are through holes. The device further comprises an ejector rod in contact with the clamped workpiece and exerting force, a spring providing pressure for the ejector rod, a screw rod adjusting elasticity of the spring, and a nut arranged outside the base and fixing the position of the screw rod. The screw rod, the spring and the ejector rod are sequentially installed in the installation hole of the base from left to right. With the adoption of the device, the positioning gap between the workpiece and the clamp can be fast eliminated, consistency of positioning is ensured when the workpiece is repeatedly clamped for multiple times, the machining precision of the workpiece can be effectively improved, the hands of an operator are replaced by the device to push the workpiece, the positioning accuracy of the workpiece is improved, and potential safety hazards in the operation process of the operator are effectively reduced.
Description
Technical field
The present invention relates to technical field of tooling clamps, be specifically related to eliminate the technical field of tooling clamps of workpiece and fixture positioning gap.
Background technology
In machine-building, for completing manufacturing procedure, assembly process and the inspection process etc. that need, can use a large amount of fixtures, utilize fixture, can improve work and produce Lu, improve processing precision of products, reduce the generation of waste product, can enlarge the processing range of lathe, improve the working condition of operation, therefore, fixture is requisite process equipment in machine-building.
During Hyundai Motor, motorcycle are manufactured, the crudy of parts has been proposed to the degree of precision requirement, machining coordinate requires substantially in ± 0.03.The assurance of part processing precision, except to process equipment, outside the process systems such as cutter have higher requirements, the reliability of clamp for machining, stability, uniformity also has considerable influence to processing precision of products, and because part dowel hole and clamp locating pin exist gap can produce considerable influence to part processing precision, part is the clamping location on fixture, because there is certain difference in dowel hole coordinate and the clamp locating pin coordinate position of part, when the alignment pin of design fixture, size can be less than pin-and-hole diameter lower limit 0.005-0.013mm, the pin-and-hole aperture is controlled as pressed limit in product requirement, will there is the gap of 1.5-2.5mm between alignment pin and pin-and-hole, part to be processed just there will be 1.5-2.5mm scope bias internal while locating on fixture, cause the fluctuation in this is interval of product machining coordinate.In the inspection to the product machining coordinate, because measured part fails accurately to reflect the actual state of machining coordinate, also easily cause the alignment error of coordinate, make the machining accuracy of product be affected, and the uniformity of processing work also can not get Reliable guarantee, in prior art, for eliminating this skew, the alignment pin that usually by the operator, with hand, the dowel hole of workpiece is relied on to fixture when the clamping workpiece on one side, in workpiece process, can there is larger potential safety hazard.
Summary of the invention
Technical problem to be solved by this invention is, provide a kind of simple in structure, can eliminate fast the device of positioning gap between workpiece and fixture, guarantee the uniformity that workpiece is repeatedly located during repeated clamping, can effectively improve the machining accuracy of workpiece, utilize this device to replace the operator to move workpiece with hand push, improve the accuracy of workpiece location, reduce the potential safety hazard in operator's operating process.
For solving above-mentioned technical problem, the present invention has taked following technical scheme:
A kind of device of eliminating workpiece and fixture positioning gap, comprise base, be provided with on the plane that described base contacts with fixture for compressing the screwed hole of base, the base upper end offers installing hole near the place, top, described installing hole is processed into screwed hole away from workpiece one end, and all the other are through hole; Also comprise and contact the also push rod of the application of force with clamping workpiece, the spring of pressure is provided to push rod, adjust the screw rod and the nut that is placed in base exterior standing screw position of spring force, described screw rod, spring, push rod are arranged in the installing hole of base successively from left to right.
On the plane that described base contacts with fixture, also be provided with for being fixedly connected with one or more dowel holes of base and fixture.
The through hole of described base installing hole can adopt shoulder hole.
Described push rod is made of nylon.
Described push rod contacts with workpiece and an end of the application of force is circular arc.
The end that described push rod stretches in base installing hole is circular shaft shape.
The end that described push rod stretches in base installing hole is stairstepping.
The beneficial effect that the present invention can reach is:
By increase a device of eliminating workpiece and fixture positioning gap on fixture, make workpiece to be processed according to the position clamping of the alignment pin on fixture and restriction to after on fixture, push rod on device is under the thrust of adjusting screw(rod) and spring, workpiece is applied to a horizontal sliding power, make the dowel hole of workpiece can be close to the alignment pin of fixture, push rod one end is provided with the spring that pressure is provided to push rod, adjusting screw(rod) contacts with surface of the work all the time and can stretch while making push rod work by spring is exerted pressure, guarantee the uniformity that workpiece is repeatedly located during repeated clamping, can effectively improve the machining accuracy of workpiece, utilize this device to replace the operator to move workpiece with hand push, improved the accuracy of workpiece location, reduced the potential safety hazard in operator's operating process.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is that the present invention installs and uses view
Reference numeral
1-base 2-adjusting screw(rod) 3-spring 4-push rod 5-nut in figure
6-sunk screw 7-alignment pin 8-workpiece 9-fixture
11-installing hole 12-screwed hole 13-dowel hole
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in further details.
As shown in Figure 1, a kind of device of eliminating workpiece and fixture positioning gap, comprise base 1, be provided with the screwed hole 12 for compressing base 1 on the plane that base 1 contacts with fixture 9, for preventing that base 1 is long-term, use the position between rear base 1 and fixture 9 to be offset, also be provided with one or more dowel holes 13 corresponding with fixture 9 on the plane contacted with fixture 9 at base 1, base 1 is fixedly connected with fixture 9 with alignment pin 7 by sunk screw 6.Base 1 upper end offers installing hole 11 near top place, and described installing hole 11 is processed into screwed hole away from workpiece 8 part that matches with adjusting screw(rod) 2, and all the other are through hole or shoulder hole.This device also comprises and contacting with clamping workpiece 8 and the push rod 4 of the application of force, the spring 3 of pressure is provided to push rod 4, adjust the adjusting screw(rod) 2 of spring 3 elastic force and be placed in the outside also nut 5 of secured adjusted screw rod 2 positions of base 1, adjusting screw(rod) 2, spring 3, push rod 4 are arranged in the installing hole 11 of base 1 successively from left to right.For preventing from push rod 4 and workpiece 8 contact processes scratching workpiece 8 surfaces, workpiece 8 surface quality are impacted, push rod 4 contacts with workpiece 8 and an end of the application of force is designed to circular arc, push rod 4 stretches into the stairstepping that ends in base installing hole 11 can be designed to circular shaft shape or match with shoulder hole in installing hole 11, can more effectively prevent that push rod 4 from skidding off in installing hole 11, push rod 4 selects nylon material to be made.
The operating process of the present invention when concrete the use is as follows:
I, according to the profile of institute's clamping workpiece 8 on fixture 9 with apply the position of power, base 1 use sunk screw 6 and alignment pin 7 are arranged on to the appropriate location on fixture 9.
II, push rod 4, spring 3 are put into successively to the installing hole 11 of base 1, adjusting screw(rod) 2 screws in installing hole 11 and makes spring 3 in pressured state, size according to spring 3 and push rod 4 and workpiece 8 contact site virials, suitably adjust the position of adjusting screw(rod) 2, guarantee that power that push rod 4 applies to workpiece 8 is convenient to the installation and removal of workpiece 8.
When III, clamping workpiece 8, workpiece 8 and the circular arc contact-making surface of push rod 4 are touched on the alignment pin of the fixture 9 of packing into, further adjust the position of adjusting screw(rod) 2, make the alignment pin of the monolateral abut against clip 9 of locating hole of workpiece 8, then with nut 5, adjusting screw(rod) 2 is locked.
IV, shut the fixture briquetting, workpiece 8 is processed.
After adopting this device, by push rod, workpiece is applied to certain horizontal sliding power, make the dowel hole of workpiece can be close to the alignment pin of fixture, can eliminate fast the positioning gap between workpiece and fixture, guarantee the uniformity that workpiece is repeatedly located during repeated clamping, can effectively improve the machining accuracy of workpiece, utilize this device to replace the operator to move workpiece with hand push, improve the accuracy of workpiece location, effectively reduce the potential safety hazard existed in operator's operating process.
Claims (7)
1. a device of eliminating workpiece and fixture positioning gap, it is characterized in that: comprise base, on the plane that described base contacts with fixture, be provided with for compressing the screwed hole of base, the base upper end offers installing hole near the place, top, described installing hole is processed into screwed hole away from workpiece one end, and all the other are through hole; Also comprise and contact the also push rod of the application of force with clamping workpiece, the spring of pressure is provided to push rod, adjust the screw rod and the nut that is placed in base exterior standing screw position of spring force, described screw rod, spring, push rod are arranged in the installing hole of base successively from left to right.
2. a kind of device of eliminating workpiece and fixture positioning gap according to claim 1, is characterized in that: on the plane that described base contacts with fixture, also be provided with for being fixedly connected with one or more dowel holes of base and fixture.
3. a kind of device of eliminating workpiece and fixture positioning gap according to claim 1, it is characterized in that: the through hole of described base installing hole can adopt shoulder hole.
4. a kind of device of eliminating workpiece and fixture positioning gap according to claim 1, it is characterized in that: described push rod is made of nylon.
5. according to the described a kind of device of eliminating workpiece and fixture positioning gap of claim 1 or 4, it is characterized in that: described push rod contacts with workpiece and an end of the application of force is circular arc.
6. a kind of device of eliminating workpiece and fixture positioning gap according to claim 5 is characterized in that: the end that described push rod stretches in base installing hole is circular shaft shape.
7. a kind of device of eliminating workpiece and fixture positioning gap according to claim 5 is characterized in that: the end that described push rod stretches in base installing hole is stairstepping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310461635.7A CN103481078A (en) | 2013-09-30 | 2013-09-30 | Device for eliminating positioning gap between workpiece and clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310461635.7A CN103481078A (en) | 2013-09-30 | 2013-09-30 | Device for eliminating positioning gap between workpiece and clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103481078A true CN103481078A (en) | 2014-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310461635.7A Pending CN103481078A (en) | 2013-09-30 | 2013-09-30 | Device for eliminating positioning gap between workpiece and clamp |
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| Country | Link |
|---|---|
| CN (1) | CN103481078A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108909540A (en) * | 2018-06-22 | 2018-11-30 | 苏州大成电子科技有限公司 | A kind of adjustable conductor rail bracket |
| CN110000277A (en) * | 2019-04-12 | 2019-07-12 | 苏州祥龙嘉业电子科技股份有限公司 | A kind of stamping die convenient for being positioned to flitch |
| CN110238449A (en) * | 2019-07-05 | 2019-09-17 | 上海永茂泰汽车零部件有限公司 | A kind of highly reliable multi-angle cutting band sawing machine |
| CN113172098A (en) * | 2021-05-11 | 2021-07-27 | 日照钢铁控股集团有限公司 | Vertical roll device of universal mill |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD250882A1 (en) * | 1986-07-09 | 1987-10-28 | Wtz Getriebe & Kupplungen Veb | AUTOMATIC TOOL CHANGE SYSTEM IN MODULE VERSION WITH VARIABLE STORAGE CAPACITY |
| US4793603A (en) * | 1984-04-09 | 1988-12-27 | Woeber Ralf | Lateral pressure pad for positioning workpieces |
| CN201455721U (en) * | 2009-06-10 | 2010-05-12 | 浙江亚太机电股份有限公司 | Auxiliary positioning device for machining |
| CN102398172A (en) * | 2010-09-17 | 2012-04-04 | 南通御丰塑钢包装有限公司 | Milling clamp of base of plastic belt welding machine |
-
2013
- 2013-09-30 CN CN201310461635.7A patent/CN103481078A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4793603A (en) * | 1984-04-09 | 1988-12-27 | Woeber Ralf | Lateral pressure pad for positioning workpieces |
| DD250882A1 (en) * | 1986-07-09 | 1987-10-28 | Wtz Getriebe & Kupplungen Veb | AUTOMATIC TOOL CHANGE SYSTEM IN MODULE VERSION WITH VARIABLE STORAGE CAPACITY |
| CN201455721U (en) * | 2009-06-10 | 2010-05-12 | 浙江亚太机电股份有限公司 | Auxiliary positioning device for machining |
| CN102398172A (en) * | 2010-09-17 | 2012-04-04 | 南通御丰塑钢包装有限公司 | Milling clamp of base of plastic belt welding machine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108909540A (en) * | 2018-06-22 | 2018-11-30 | 苏州大成电子科技有限公司 | A kind of adjustable conductor rail bracket |
| CN110000277A (en) * | 2019-04-12 | 2019-07-12 | 苏州祥龙嘉业电子科技股份有限公司 | A kind of stamping die convenient for being positioned to flitch |
| CN110238449A (en) * | 2019-07-05 | 2019-09-17 | 上海永茂泰汽车零部件有限公司 | A kind of highly reliable multi-angle cutting band sawing machine |
| CN113172098A (en) * | 2021-05-11 | 2021-07-27 | 日照钢铁控股集团有限公司 | Vertical roll device of universal mill |
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Application publication date: 20140101 |