CN110549143B - A fixture for plane machining of workpiece - Google Patents
A fixture for plane machining of workpiece Download PDFInfo
- Publication number
- CN110549143B CN110549143B CN201910840082.3A CN201910840082A CN110549143B CN 110549143 B CN110549143 B CN 110549143B CN 201910840082 A CN201910840082 A CN 201910840082A CN 110549143 B CN110549143 B CN 110549143B
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- boss
- hole
- pressing plate
- adjusting
- workpiece
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Classifications
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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
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a clamp for workpiece plane machining, which comprises a clamp body, clamping blocks and a pressing plate; the fixture body comprises a bottom plate, a first boss and a second boss at the top of two ends of the bottom plate, a threaded hole a and a threaded hole B which are communicated are formed in the top ends of the first boss and the second boss, and a fastener A and a fastener B are respectively installed in the two threaded holes; one end of the pressing plate is a slope, the other end of the pressing plate is connected to the second boss in an up-down sliding manner, a countersunk through hole and a threaded hole C are respectively formed in the pressing plate and the bottom plate, and the fastening piece C is arranged in the countersunk through hole and the threaded hole C; the end face of the clamping block, which is close to the second boss, is in a slope shape, the slope end face of the slope is matched with the slope face of the pressing plate, countersunk blind holes are formed in the end faces, opposite to the first boss, of the clamping block, and elastic components are placed between the countersunk blind holes. The invention has simple structure and convenient use; the surface of the workpiece is not protruded, so that the integrity of the plane processing of the workpiece is ensured; in addition, the workpiece is clamped stably, and the precision of workpiece plane machining is guaranteed.
Description
Technical Field
The invention relates to the technical field of machine tool fixture tools, in particular to a fixture for workpiece plane machining.
Background
The fixture is used to fix the machining object in the correct position during the machining process to accept the construction or detection. In a broad sense, any device used to quickly, conveniently and safely mount a workpiece at any stage in the process may be referred to as a fixture.
In the machining process, the plane of the workpiece is processed by a planer or a milling machine, the clamp is generally a flat tongs or a pressing plate, but for a large-plane or smaller thin plate workpiece (3-6 mm thick), the flat tongs cannot be used for clamping, so that the pressing plate is used for clamping, and as the pressing plate protrudes out of the surface of the workpiece, the whole surface of the workpiece cannot be covered by a cutter, so that the integrity of plane machining can be influenced; in addition, the machining precision of the workpiece plane is ensured, and the most critical is the stable clamping of the workpiece, so that the loosening phenomenon cannot occur during the machining.
Accordingly, it is necessary to invent a jig for workpiece plane processing to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to provide a clamp for processing a workpiece plane, which has a simple structure and is convenient to use, and is suitable for processing a large plane or a smaller thin plate workpiece plane so as to solve the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
A clamp for workpiece plane machining comprises a clamp body, a clamp block and a pressing plate; the fixture body comprises a bottom plate, a first boss and a second boss at the top of two ends of the bottom plate, a threaded hole a and a threaded hole B which are communicated are formed in the top ends of the first boss and the second boss, and a fastener A and a fastener B are respectively installed in the two threaded holes; one end of the pressing plate is a slope, the other end of the pressing plate is connected to the second boss in an up-down sliding manner, a countersunk through hole and a threaded hole C are respectively formed in the pressing plate and the bottom plate, and the fastening piece C is arranged in the countersunk through hole and the threaded hole C; the end face, close to the second boss, of the clamping block is in a slope shape, the slope end face is matched with the slope face of the pressing plate, countersunk blind holes are formed in the end faces, opposite to the first boss, of the clamping block, and an elastic part is placed between the countersunk blind holes; the bottom plate on the inner side of the first boss is provided with an adjusting hole along the length direction, the bottom surface of the clamping block is contacted with the upper surface of the clamp body, the adjusting block at the bottom of the clamping block is positioned in the adjusting hole, the adjusting block moves left and right in the adjusting hole, and the top end of the clamping block is higher than the first boss.
According to a further improvement scheme, a vertical sliding groove is formed in the inner side face of the second boss, a sliding block is arranged at one end of the pressing plate, and the pressing plate slides up and down in the sliding groove through the sliding block.
According to a further improvement scheme, the adjusting holes are long-waist-shaped holes, the adjusting blocks are long-waist-shaped blocks, and the sizes of the adjusting blocks are smaller than the sizes of the adjusting holes.
According to a further improvement scheme of the invention, when the adjusting block is positioned at the end of the adjusting hole close to the first boss, a compression gap is reserved between the clamping block and the first boss.
According to a further improvement scheme of the invention, the fastening piece A and the fastening piece B are socket head cap screws or socket head cap screws.
According to a further improvement of the invention, the fastening piece C is a socket head cap screw.
According to a further improvement scheme of the invention, the countersunk through holes and the threaded holes c are arranged concentrically up and down.
According to a further improvement scheme of the invention, a flat gasket is arranged between the fastener C and the countersunk through hole.
According to a further development of the invention, the elastic element is a spring or a spring stack.
According to a further improvement scheme of the invention, two end faces of the clamp body are T-shaped.
The invention has the beneficial effects that:
1. When the clamp is used for clamping a workpiece, more than two clamps are arranged in the T-shaped groove of the machine tool workbench, and the clamp blocks are extruded by the pressing plate to move so as to realize the clamping function of the workpiece; the clamp is simple in structure and convenient to use; the surface of the workpiece is not protruded, so that the integrity of the plane processing of the workpiece is ensured; in addition, the workpiece is clamped stably, and the precision of workpiece plane machining is guaranteed.
2. The clamp for workpiece plane machining can loosen the fastener A and the fastener B when not in use, and can be fully contracted into the T-shaped groove of the machine tool, so that the work table of the machine tool is free from barriers.
3. The clamp for workpiece plane machining disclosed by the invention is characterized in that the fastener A and the fastener B are replaced by socket head cap screws, and the clamp can be used as a common T-shaped nut.
4. According to the clamp for processing the workpiece plane, the pressing plate and the second boss are matched with the sliding groove through the sliding block, so that the stability of up-and-down movement of the pressing plate is ensured.
5. According to the clamp for workpiece plane machining, when the adjusting block is positioned at the end of the adjusting hole close to the first boss, a compression gap is reserved between the clamping block and the first boss, so that the clamping block and the first boss are prevented from interfering.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
Fig. 3 is a schematic structural view of a fixture body according to the present invention.
Fig. 4 is a schematic view of a platen structure according to the present invention.
Fig. 5 is a schematic view of the structure of the clamping block of the present invention.
Fig. 6 is a diagram showing the positional relationship between the machine tool table and the present invention when the present invention is installed.
Fig. 7-9 are schematic diagrams of a method for clamping a workpiece according to the invention.
In the figure: 1-clamp body, 2-clamp block, 3-clamp plate, 4-bottom plate, 5-first boss, 6-second boss, 7-screw hole a, 8-screw hole B, 9-countersunk through hole, 10-screw hole C, 11-fastener A, 12-fastener B, 13-fastener C, 14-countersunk blind hole, 15-elastic component, 16-regulation hole, 17-regulating block, 18-spout, 19-slider, 20-machine tool workbench, 21-T-shaped groove, 22-work piece, 23-plain washer.
Detailed Description
The application will be further illustrated with reference to the accompanying drawings, it being understood that the following specific examples are given by way of illustration only and not by way of limitation, and that various equivalents of the application may be resorted to by those skilled in the art, after reading the application, falling within the scope of the application as defined by the appended claims.
As shown in fig. 1 to 5, a clamp for workpiece plane machining comprises a clamp body 1, a clamp block 2 and a pressing plate 3; the clamp body 1 comprises a bottom plate 4, a first boss 5 and a second boss 6 at the tops of two ends of the bottom plate 4, and the first boss 5, the second boss 6 and the bottom plate 4 are integrally formed by machining; the top ends of the first boss 5 and the second boss 6 are provided with a through threaded hole a7 and a through threaded hole B8, and a fastener A11 and a fastener B12 are respectively arranged in the two threaded holes; one end of the pressing plate 3 is a slope, the other end of the pressing plate is connected to the second boss 6 in an up-down sliding way, a countersunk through hole 9 and a threaded hole C10 are respectively formed in the pressing plate 3 and the bottom plate 4, and a fastening piece C13 is arranged in the countersunk through hole 9 and the threaded hole C10; the end face, close to the second boss 6, of the clamping block 2 is in a slope shape, the slope end face is matched with the slope face of the pressing plate 3, countersunk blind holes 14 are formed in the end face, opposite to the first boss 5, of the clamping block 2, and an elastic part 15 is placed between the countersunk blind holes 14; an adjusting hole 16 is formed in the bottom plate 4 on the inner side of the first boss 5 along the length direction, the bottom surface of the clamping block 2 is in contact with the upper surface of the clamp body 1, an adjusting block 17 at the bottom of the clamping block 2 is located in the adjusting hole 16, the adjusting block 17 moves left and right in the adjusting hole 16, and the top end of the clamping block 2 is higher than the first boss 5.
The inner side surface of the second boss 6 is machined with a vertical sliding groove 18, one end of the pressing plate 3 is provided with an integrally formed sliding block 19, and the pressing plate 3 slides up and down in the sliding groove 18 through the sliding block 19.
The adjusting hole 16 is a long-waist-shaped hole, the adjusting block 17 is a long-waist-shaped block, and the size of the adjusting block 17 is smaller than that of the adjusting hole 16, so that the adjusting block 17 can freely move left and right in the adjusting hole 16 and does not shake.
When the adjusting block 17 is positioned at the end of the adjusting hole 16 close to the first boss 5, a compression gap is reserved between the clamping block 2 and the first boss 5.
The fastening piece A11 and the fastening piece B12 are socket head cap screws or socket head cap screws.
The fastener C13 is a socket head cap screw.
The countersunk through hole 9 and the threaded hole c10 are arranged concentrically up and down.
A flat gasket 23 is arranged between the fastener C13 and the countersunk through hole 9.
The elastic member 15 is a spring or a spring group.
The two end faces of the clamp body 1 are T-shaped.
The specific working principle is as follows: as shown in fig. 6, when in use, firstly, according to the size of the workpiece 22, more than two clamps are installed at the proper positions of the T-shaped groove 21 on the machine tool workbench 20, and it is worth noting that the thickness dimension of the bottom plate 4 of the clamp body 1 is smaller than the height dimension of the transverse groove cavity below the T-shaped groove 21, so that when the fastener a11 and the fastener B12 are screwed (when the workpiece 22 is clamped, the fastener a11 and the fastener B12 adopt headless socket head cap screws), the clamp body 1 moves upwards, when the fastener a11 and the fastener B12 are screwed, the upper surface of the bottom plate 4 is tightly attached to the top surface of the transverse groove cavity of the T-shaped groove 21, thereby fixing the clamps in the T-shaped groove 21 of the machine tool workbench 20, and after clamping of the clamps, the upper surfaces of the first boss 5 and the second boss 6 are flush with the machine tool workbench 20; placing the workpiece 22 between the clamps, then screwing the tightening piece C, moving the pressing plate 3 downwards, and pressing the clamping block 2 downwards by means of the slope of the end part of the pressing plate, so as to drive the clamping block 2 to move to clamp the workpiece 22; when the workpiece 22 is dismounted, only the fixing piece C13 is needed to be loosened, the clamping block 2 moves reversely under the action of the spring, and the pressing plate 3 is driven to move upwards through the matching of the slope surface of the clamping block 2 and the slope of the pressing plate 3, so that the workpiece 22 is loosened; if the fastening piece A11 and the fastening piece B12 are loosened, the whole clamp is sunk into the T-shaped groove 21 of the machine tool workbench 20, so that the machine tool workbench is kept free from barriers; if the fastener A11 and the fastener B12 are replaced by cylindrical hexagon bolts, the clamp can be used as a common T-shaped nut.
The number and positions of the clamps can be adjusted according to the actual situation when clamping the workpiece 22. As shown in fig. 7, two clamps may be used to clamp both ends of the workpiece 22; as shown in fig. 8, four clamps may also be used to clamp four corners of the workpiece 22; as shown in fig. 9, when the machine tool table 20 uses the crisscrossed T-shaped groove 21, four jigs may be used to clamp the four end surfaces of the workpiece 22.
Claims (4)
1. A fixture for workpiece plane machining, characterized in that: comprises a clamp body (1), a clamp block (2) and a pressing plate (3); the fixture body (1) comprises a bottom plate (4) and a first boss (5) and a second boss (6) at the tops of two ends of the bottom plate (4), threaded holes a (7) and threaded holes B (8) which are communicated are formed in the tops of the first boss (5) and the second boss (6), and a fastener A (11) and a fastener B (12) are respectively arranged in the two threaded holes; one end of the pressing plate (3) is a slope, the other end of the pressing plate is connected to the second boss (6) in an up-down sliding mode, a countersunk through hole (9) and a threaded hole C (10) are respectively formed in the pressing plate (3) and the bottom plate (4), and the fastening piece C (13) is installed in the countersunk through hole (9) and the threaded hole C (10); the end face, close to the second boss (6), of the clamping block (2) is in a slope shape, the slope end face is matched with the slope surface of the pressing plate (3), countersunk blind holes (14) are formed in the opposite end faces of the clamping block (2) and the first boss (5), and an elastic part (15) is placed between the countersunk blind holes (14); an adjusting hole (16) is formed in the bottom plate (4) at the inner side of the first boss (5) along the length direction, the bottom surface of the clamping block (2) is in contact with the upper surface of the clamp body (1), an adjusting block (17) at the bottom of the clamping block (2) is positioned in the adjusting hole (16), the adjusting block (17) moves left and right in the adjusting hole (16), and the top end of the clamping block (2) is higher than the first boss (5);
A vertical sliding groove (18) is formed in the inner side surface of the second boss (6), a sliding block (19) is arranged at one end of the pressing plate (3), and the pressing plate (3) slides up and down in the sliding groove (18) through the sliding block (19);
the adjusting holes (16) are long-waist-shaped holes, the adjusting blocks (17) are long-waist-shaped blocks, and the size of the adjusting blocks (17) is smaller than that of the adjusting holes (16);
When the adjusting block (17) is positioned at the end of the adjusting hole (16) close to the first boss (5), a compression gap is reserved between the clamping block (2) and the first boss (5);
the countersunk through hole (9) and the threaded hole c (10) are arranged concentrically up and down;
The elastic component (15) is a spring or a spring group;
two end faces of the clamp body (1) are T-shaped.
2. A fixture for workpiece planarization as recited in claim 1, wherein: the fastener A (11) and the fastener B (12) are socket head cap screws or socket head cap screws.
3. A fixture for workpiece planarization as recited in claim 1, wherein: the fastener C (13) is a socket head cap screw.
4. A fixture for workpiece planarization as recited in claim 1, wherein: a flat gasket (23) is arranged between the fastener C (13) and the countersunk through hole (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910840082.3A CN110549143B (en) | 2019-09-06 | 2019-09-06 | A fixture for plane machining of workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910840082.3A CN110549143B (en) | 2019-09-06 | 2019-09-06 | A fixture for plane machining of workpiece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110549143A CN110549143A (en) | 2019-12-10 |
| CN110549143B true CN110549143B (en) | 2024-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910840082.3A Active CN110549143B (en) | 2019-09-06 | 2019-09-06 | A fixture for plane machining of workpiece |
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| CN (1) | CN110549143B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112008126A (en) * | 2020-08-11 | 2020-12-01 | 浙江邦烨自动化科技有限公司 | Milling machine special for rear cover of cylinder of agricultural machine |
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| WO2014171271A1 (en) * | 2013-04-15 | 2014-10-23 | 津田駒工業株式会社 | Workpiece gripping device |
| CN105215713A (en) * | 2015-09-25 | 2016-01-06 | 重庆瀚方钢结构有限公司 | Portable platen clamp rig |
| CN211072659U (en) * | 2019-09-06 | 2020-07-24 | 淮阴工学院 | Plane machining clamp for sheet workpiece |
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| CN2635274Y (en) * | 2003-06-26 | 2004-08-25 | 步新院 | High speed steel cutter clamping device |
| JP4401799B2 (en) * | 2004-01-30 | 2010-01-20 | 日本オートマチックマシン株式会社 | Work holding vise |
| JP2008087134A (en) * | 2006-10-04 | 2008-04-17 | Tec Yasuda:Kk | Work clamp tool and work clamp stand |
| JP5418997B2 (en) * | 2008-01-22 | 2014-02-19 | Ｓｍｃ株式会社 | Clamping device |
| CN101879683A (en) * | 2010-08-04 | 2010-11-10 | 永济新时速电机电器有限责任公司 | Quick clamping mechanism for machine tool |
| CN204221418U (en) * | 2014-10-29 | 2015-03-25 | 上海沃迪自动化装备股份有限公司 | A kind of side-pressing device compressed for side surface of workpiece |
| CN204430850U (en) * | 2014-12-12 | 2015-07-01 | 东台市凯润精密机械股份有限公司 | A kind of milling machine floats positioning and clamping device |
| CN204585022U (en) * | 2015-02-06 | 2015-08-26 | 郑金村 | Small fixture structure |
| US9895792B2 (en) * | 2016-06-21 | 2018-02-20 | Ju-Tan Chen | Workpiece clamp device capable for changing clamp angle |
| DE202016103435U1 (en) * | 2016-06-28 | 2016-07-07 | Po-Shen Chen | Clamping device for workpieces with single side |
| CN208117291U (en) * | 2018-04-03 | 2018-11-20 | 上海佐锦精密机械有限公司 | A kind of precision workpiece clamp for machining |
| CN208304867U (en) * | 2018-06-07 | 2019-01-01 | 昆山科友机械有限公司 | A kind of frock clamp |
| CN208451149U (en) * | 2018-07-06 | 2019-02-01 | 南京全丰汽车部件有限公司 | A kind of small space clamping device of force booster type |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014171271A1 (en) * | 2013-04-15 | 2014-10-23 | 津田駒工業株式会社 | Workpiece gripping device |
| CN105215713A (en) * | 2015-09-25 | 2016-01-06 | 重庆瀚方钢结构有限公司 | Portable platen clamp rig |
| CN211072659U (en) * | 2019-09-06 | 2020-07-24 | 淮阴工学院 | Plane machining clamp for sheet workpiece |
Also Published As
| Publication number | Publication date |
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| CN110549143A (en) | 2019-12-10 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20191210 Assignee: WUXI VIRGIL MACHINERY Co.,Ltd. Assignor: HUAIYIN INSTITUTE OF TECHNOLOGY Contract record no.: X2025980034208 Denomination of invention: A fixture for workpiece plane processing Granted publication date: 20240716 License type: Common License Record date: 20251114 |
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