CN104439584A - Workpiece clamping mechanism - Google Patents
Workpiece clamping mechanism Download PDFInfo
- Publication number
- CN104439584A CN104439584A CN201410639554.6A CN201410639554A CN104439584A CN 104439584 A CN104439584 A CN 104439584A CN 201410639554 A CN201410639554 A CN 201410639554A CN 104439584 A CN104439584 A CN 104439584A
- Authority
- CN
- China
- Prior art keywords
- support tube
- gripper shoe
- barrel
- workpiece
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H11/00—Auxiliary apparatus or details, not otherwise provided for
- B23H11/003—Mounting of workpieces, e.g. working-tables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
Abstract
The invention discloses a workpiece clamping mechanism which comprises a supporting plate, an elastic piece, a supporting barrel and a locating barrel. The upper end of the supporting barrel is open, the lower end of the supporting barrel is closed, the locating barrel and the supporting barrel are arranged coaxially, and the upper end and the lower end of the locating barrel are open. The supporting plate is located above the supporting barrel, a first through opening is formed in the supporting plate, the center line of the first through opening and the axis of the supporting barrel are overlapped, the upper end and the lower end of the elastic piece are fixedly connected with the lower end face of the supporting plate and the bottom of the inner wall of the supporting barrel respectively, the supporting barrel is sleeved with the locating barrel, a plurality of clamping jaws used for locating top points of workpieces are arranged at the upper end of the locating barrel, and the inner side faces of the clamping jaws are gradually inclined towards the axis of the locating barrel from bottom to top. The workpiece clamping mechanism has the advantages that clamping is convenient and firm, relocating precision is high, good universality is achieved, and the structure is simple.
Description
Technical field
The present invention relates to electric spark machining field, especially relate to workpiece grip mechanism.
Background technology
Spark machined carries out materials processing based on the galvano-cautery phenomenon produced during two interpolar pulsed discharges.For ensureing crudy, needing adapted fixture by Workpiece fixing at electrical spark working and fixing man-hour, when being subject to working solution impact or external disturbance to avoid workpiece, occurring the problem that position offsets.This just requires that fixture can not only clamp firmly, accurate positioning, and can also be easy to loading and unloading.And existing fixture can not meet above requirement simultaneously: though clamping of having is firm, need to carry out repeatedly opposite side, alignment operation after each clamping workpiece, so not only working strength is large, also affects working (machining) efficiency; Though what have can be easy to loading and unloading, when workpiece turns round, its centre of gyration easily changes thus affects crudy; Though the energy accurate positioning had, can not be applicable to the blank workpiece of different size, so that can not be fixed it.
Summary of the invention
The object of the invention is to the deficiency overcoming above-mentioned existing work piece holder, workpiece grip mechanism be provided, have convenient mounting and clamping, clamping firmly, relocate that precision is high, versatility good, the simple advantage of structure.
Object of the present invention is achieved through the following technical solutions: workpiece grip mechanism, comprise gripper shoe, elastic component, upper end open lower end closed support tube and coaxially arrange with support tube and the positioning tube of the upper and lower equal opening in two ends; Gripper shoe is positioned at the top of support tube, gripper shoe is provided with the first port, the center line of the first port is overlapping with the axis of support tube, the two ends up and down of elastic component are connected respectively with bottom the lower surface of gripper shoe and the inwall of support tube, positioning tube is sheathed on outside support tube, positioning tube upper end is provided with multiple jaw for positioning workpieces summit, and the medial surface of jaw progressively tilts to the axis of positioning tube from the bottom to top.In the present invention, gripper shoe is for supporting workpiece, and under external force and elastic component effect, gripper shoe can move within the specific limits; The setting of the first port can be convenient to electrode pair workpiece and process, and also can reduce the wearing and tearing of gripper shoe, also can avoid galvanic corrosion Product bulk in gripper shoe, affect the accuracy of location simultaneously; Jaw is used for the summit of positioning workpieces, so both realizes the clamping of workpiece by the mode of the rotational workpieces that misplaces, and also can make to be formed between jaw and workpiece point cantact and non-face contact, thus reduces galvanic corrosion product and enter contact site and affect positioning precision; Elastic component is used for providing upwards active force, and workpiece is tightly clamped by each jaw.
Affect positioning precision for avoiding gripper shoe that position skew occurs when moving up and down, further, described gripper shoe lower surface is connected promising gripper shoe guiding and the position-limiting drum coaxially arranged with described support tube, and position-limiting drum lower end is positioned at support tube.In the present invention, by coordinating of position-limiting drum outer wall and support tube inwall, the straight up and down motion of gripper shoe relative support cylinder can be realized as far as possible.
For improving versatility, further, be threaded engagement between described positioning tube and described support tube.In the present invention, positioning tube is located at outside support tube by thread bush, i.e. the height and position of adjustable positioning tube relative support cylinder, to meet the thickness requirement of different workpieces; The replacing of positioning tube can be convenient to again, to adapt to shape and the dimensional requirement of different workpieces, such as, when workpiece is triangular in shape, 3 jaws need be set on positioning tube, during in quadrangle, 4 jaws need be set on positioning tube.
During revolution, for avoiding the centre of gyration of workpiece to change, further, the center line of described gripper shoe is overlapping with the axis of support tube.
Get rid of from the present invention for ease of galvanic corrosion product, further, the bottom of described support tube is provided with the second port.
Compared with existing work piece holder, the invention has the beneficial effects as follows: in the present invention, by the setting of jaw and elastic component, the mode by the rotational workpieces that misplaces realizes the clamping of workpiece, and under the cooperation of elastic component, workpiece is tightly clamped by each jaw; Even if the gauge of blank workpiece difference to some extent, also realize the fastening of its by arranging of jaw medial surface and do not affect positioning precision; Can make to be formed between jaw and workpiece linear contact lay and non-face contact, thus reduce galvanic corrosion product and enter contact site and affect positioning precision.Arranged by the screw thread between positioning tube and support tube, i.e. the height and position of adjustable positioning tube relative support cylinder, to meet the thickness requirement of different workpieces; The replacing of positioning tube can be convenient to again, to adapt to shape and the dimensional requirement of different workpieces.The present invention have convenient mounting and clamping, clamping firmly, relocate that precision is high, versatility good, the simple advantage of structure.
Accompanying drawing explanation
Fig. 1 is the structural representation of a workpiece grip mechanism of the present invention specific embodiment;
Fig. 2 is the top view of a workpiece grip mechanism of the present invention specific embodiment.
Mark and corresponding parts title in accompanying drawing: 1, support tube, 2, positioning tube, 3, gripper shoe, 4, elastic component, 5, jaw, 6, position-limiting drum, the 7, first port, the 8, second port, 9, blank workpiece.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited only to this.
Embodiment 1:
As shown in Figure 1 to Figure 2, workpiece grip mechanism, comprise gripper shoe 3, elastic component 4, upper end open lower end closed support tube 1 and arrange and the positioning tube 2 of the upper and lower equal opening in two ends with support tube 1 is coaxial; Gripper shoe 3 is positioned at the top of support tube 1, gripper shoe 3 is provided with the first port 7, the center line of the first port 7 is overlapping with the axis of support tube 1, the two ends up and down of elastic component 4 are connected respectively with bottom the lower surface of gripper shoe 3 and the inwall of support tube 1, positioning tube 2 is sheathed on outside support tube 1, positioning tube 2 upper end is provided with multiple jaw 5 for positioning workpieces summit, and the medial surface of jaw 5 progressively tilts to the axis of positioning tube 2 from the bottom to top.
In the present embodiment, for realizing the positioning action of jaw 5 pairs of workpiece, especially when workpiece size is less than normal, jaw 5 still can navigate to the summit of workpiece, then should ensure that the maximum superior displacement of gripper shoe 3 under elastic component 4 supporting role is put should to the upper end of jaw 5.Accomplish that so one is to ensure that elastic component 4 has enough large support force, and two is to avoid gripper shoe 3 to be blocked by the middle part of jaw 5 upper moving past in journey.Meanwhile, gripper shoe 3 also should be avoided under the supporting role of elastic component 4 to depart from jaw 5, so very easily affect the accuracy of location and fragile elastic component 4.The medial surface of jaw 5 can be set to inclined-plane and also can be set to cambered surface, and the quantity of jaw 5 and position should be arranged according to the limit number of workpiece and concrete shape, for the carbide cutter tool of triangle, as shown in Figure 2, then should be provided with 3 jaws 5.Because workpiece has certain thickness and the medial surface of jaw 5 has certain gradient or radian usually, jaw 5 actual location be the summit of workpiece upper surface.
During application, first the drift angle of blank workpiece 9 is placed in gripper shoe 3 with the position of the jaw 5 that staggers, blank workpiece 9 is made to enter the lower end of jaw 5 to pressing down gripper shoe 3 again, rotating blank workpiece 9 makes its summit align with jaw 5, slowly decontrol gripper shoe 3 again, blank workpiece 9 is clamped in each jaw 5 under the effect of elastic component 4, so then completes the clamping of blank workpiece 9.During unloading workpiece, operation is contrary.Workpiece is changed, even if uneven thickness also can not affect positioning precision when workpiece outer profile size uniformity is higher.Thus, one-time positioning is only needed can to complete the processing of a collection of workpiece for this situation.Because workpiece hardness is usually higher, be the rate of wear reducing jaw 5, can through quenching and Carburization Treatment, to improve the case hardness of jaw 5.
Embodiment 2
The present embodiment has been made and have been limited further as follows on the basis of embodiment 1: the described gripper shoe 3 lower surface promising gripper shoe 3 that is connected leads and the position-limiting drum 6 that arrange coaxial with described support tube 1, and position-limiting drum 6 lower end is positioned at support tube 1.In the present embodiment, elastic component 4 upper end can be positioned at position-limiting drum 6.For realizing good and stable guide function, should fit between the outer wall of position-limiting drum 6 and the inwall of support tube 1 as far as possible and also should ensure that position-limiting drum 6 can move up and down by relative support cylinder 1.
Embodiment 3
The present embodiment has made following restriction further on the basis of embodiment 1: be threaded engagement between described positioning tube 2 and described support tube 1.In the present embodiment, the inwall of positioning tube 2 can be provided with internal thread, and the outer wall of support tube 1 can be provided with the external screw thread matched with internal thread, and positioning tube 2 is located on support tube 1 by thread bush.During application, if the gauge of workpiece is comparatively large, then rotatable positioning tube 2 makes its relative support cylinder 1 move up; If when the gauge of workpiece is less, operation is contrary.
Above content is the further description done the present invention in conjunction with concrete preferred embodiment, can not assert that the specific embodiment of the present invention is confined to these explanations.For general technical staff of the technical field of the invention, not departing from other embodiments drawn under technical scheme of the present invention, protection scope of the present invention all should be included in.
Claims (5)
1. workpiece grip mechanism, is characterized in that: comprise gripper shoe (3), elastic component (4), upper end open lower end closed support tube (1) and arrange and the positioning tube (2) of the upper and lower equal opening in two ends with support tube (1) is coaxial; Gripper shoe (3) is positioned at the top of support tube (1), gripper shoe (3) is provided with the first port (7), the center line of the first port (7) is overlapping with the axis of support tube (1), the two ends up and down of elastic component (4) are connected respectively with bottom the lower surface of gripper shoe (3) and the inwall of support tube (1), positioning tube (2) is sheathed on support tube (1) outward, positioning tube (2) upper end is provided with multiple jaw for positioning workpieces summit (5), and the medial surface of jaw (5) progressively tilts to the axis of positioning tube (2) from the bottom to top.
2. workpiece grip mechanism according to claim 1, it is characterized in that: described gripper shoe (3) lower surface be connected promising gripper shoe (3) guiding and the position-limiting drum (6) that arrange coaxial with described support tube (1), position-limiting drum (6) lower end is positioned at support tube (1).
3. workpiece grip mechanism according to claim 1, is characterized in that: be threaded engagement between described positioning tube (2) and described support tube (1).
4. workpiece grip mechanism according to claim 1, is characterized in that: the center line of described gripper shoe (3) is overlapping with the axis of support tube (1).
5. according to the workpiece grip mechanism in claim 1 ~ 5 described in any one, it is characterized in that: the bottom of described support tube (1) is provided with the second port (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410639554.6A CN104439584A (en) | 2014-11-14 | 2014-11-14 | Workpiece clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410639554.6A CN104439584A (en) | 2014-11-14 | 2014-11-14 | Workpiece clamping mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104439584A true CN104439584A (en) | 2015-03-25 |
Family
ID=52886765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410639554.6A Pending CN104439584A (en) | 2014-11-14 | 2014-11-14 | Workpiece clamping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104439584A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106270862A (en) * | 2016-10-19 | 2017-01-04 | 大连大学 | A kind of electrode clamping device |
| CN107552906A (en) * | 2017-09-22 | 2018-01-09 | 成都南红鞋业有限公司 | A kind of workpiece grip mechanism suitable for galvanic corrosion |
| CN108673185A (en) * | 2018-06-07 | 2018-10-19 | 绵竹市凯瑞机械加工有限公司 | Sheet parts tool for processing |
| CN108705466A (en) * | 2018-06-07 | 2018-10-26 | 绵竹市凯瑞机械加工有限公司 | Prevent sheet parts from clamping impaired method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60217022A (en) * | 1984-04-11 | 1985-10-30 | Inoue Japax Res Inc | Current supplying apparatus for electric working |
| EP0897776A2 (en) * | 1997-08-21 | 1999-02-24 | Mecatool AG | Coupling device for a machining equipment |
| CN101585147A (en) * | 2008-05-21 | 2009-11-25 | 王伟 | Novel machine tool chuck |
| CN201505822U (en) * | 2009-06-05 | 2010-06-16 | 上海德奎久保田模具有限公司 | Improved structure of clamping mechanism for square electrode clamper |
| CN202240012U (en) * | 2011-07-06 | 2012-05-30 | 宝钢发展有限公司 | Material-centralizing fixture used for wire cutting bisection of hot simulation compression sample |
| CN202894381U (en) * | 2012-10-07 | 2013-04-24 | 刘君芬 | Novel three claws of instrument |
-
2014
- 2014-11-14 CN CN201410639554.6A patent/CN104439584A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60217022A (en) * | 1984-04-11 | 1985-10-30 | Inoue Japax Res Inc | Current supplying apparatus for electric working |
| EP0897776A2 (en) * | 1997-08-21 | 1999-02-24 | Mecatool AG | Coupling device for a machining equipment |
| CN101585147A (en) * | 2008-05-21 | 2009-11-25 | 王伟 | Novel machine tool chuck |
| CN201505822U (en) * | 2009-06-05 | 2010-06-16 | 上海德奎久保田模具有限公司 | Improved structure of clamping mechanism for square electrode clamper |
| CN202240012U (en) * | 2011-07-06 | 2012-05-30 | 宝钢发展有限公司 | Material-centralizing fixture used for wire cutting bisection of hot simulation compression sample |
| CN202894381U (en) * | 2012-10-07 | 2013-04-24 | 刘君芬 | Novel three claws of instrument |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106270862A (en) * | 2016-10-19 | 2017-01-04 | 大连大学 | A kind of electrode clamping device |
| CN106270862B (en) * | 2016-10-19 | 2018-03-16 | 大连大学 | A kind of electrode clamping device |
| CN107552906A (en) * | 2017-09-22 | 2018-01-09 | 成都南红鞋业有限公司 | A kind of workpiece grip mechanism suitable for galvanic corrosion |
| CN108673185A (en) * | 2018-06-07 | 2018-10-19 | 绵竹市凯瑞机械加工有限公司 | Sheet parts tool for processing |
| CN108705466A (en) * | 2018-06-07 | 2018-10-26 | 绵竹市凯瑞机械加工有限公司 | Prevent sheet parts from clamping impaired method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |