CN107336051B - Quick accurate centering positioning fixture of machining center - Google Patents
Quick accurate centering positioning fixture of machining center Download PDFInfo
- Publication number
- CN107336051B CN107336051B CN201710794989.1A CN201710794989A CN107336051B CN 107336051 B CN107336051 B CN 107336051B CN 201710794989 A CN201710794989 A CN 201710794989A CN 107336051 B CN107336051 B CN 107336051B
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- seat
- clamping
- guide groove
- connecting rod
- center
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- 239000011159 matrix material Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000003754 machining Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 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
- 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
Abstract
The invention discloses a quick and accurate centering and positioning clamp for a machining center, which comprises a fixed seat, a first guide groove, a rotating head, a screw, a fixed piece, a nut seat, a first clamping seat, a first connecting rod, a first clamping component, a second guide groove, a second connecting seat, a second connecting rod, a connecting piece, a third connecting seat, a second clamping seat, a third guide groove, a third connecting rod, a fourth connecting seat, a second clamping component, a second connecting piece, a fourth connecting rod and a fourth guide groove; the invention has the advantages of reasonable and simple structure, low production cost, convenient installation and complete functions, and the four connecting rods and the two connecting pieces arranged in the invention can drive the clamping seat I, the clamping seat II, the clamping assembly I and the clamping assembly II to move inwards or outwards simultaneously, the workpiece is centered and clamped when moving inwards, and the workpiece is loosened when moving outwards, thus the requirements of rapidly centering and clamping the workpiece can be met, and the processing efficiency and quality are improved.
Description
Technical field:
the invention relates to the field of machining auxiliary tools, in particular to a rapid and accurate centering positioning fixture for a machining center.
The background technology is as follows:
the fixture is an important component part of a machining center, and is used for fixing a workpiece at the accurate position of a machine tool to finish various machining of the workpiece, and the fixture is accurate in positioning and reliable in clamping, so that the structure of the fixture has important influence on machining precision and machining efficiency, the existing fixture is troublesome in clamping, and the workpiece is difficult to quickly perform centering positioning and clamping, so that machining efficiency and machining quality are seriously influenced.
The invention comprises the following steps:
the invention aims to solve the problems that the existing clamp is troublesome in clamping, and the workpiece is difficult to be rapidly centered and clamped, so that the processing efficiency and quality are seriously affected.
In order to solve the problems, the invention provides a technical scheme that: a quick accurate centering positioning fixture of machining center, its innovation point lies in: the clamping device comprises a fixing seat, a first guide groove, a rotating head, a screw rod, a fixing piece, a nut seat, a clamping seat, a first connecting rod, a clamping component, a second guide groove, a second connecting seat, a second connecting rod, a connecting piece, a third connecting seat, a second clamping seat, a third guide groove, a third connecting rod, a fourth connecting seat, a second clamping component, a second connecting piece, a fourth connecting rod and a fourth guide groove; the first guide groove is arranged in the center of the lower side of the fixed seat; the screw is movably connected in the first guide groove through a fixing piece, the end part of the screw is fixedly connected with a rotating head, and the upper surface of the screw is movably connected with a nut seat; the nut seat is fixedly connected to the lower side of the clamping seat; the clamping seat I is vertically movably connected in the guide groove I, and the upper side of the clamping seat I is fixedly connected with the connecting seat I; the center of the bottom of the first connecting seat is hinged with the lower sides of the first connecting rod and the fourth connecting rod respectively; the second guide groove is arranged in the center of the left side of the fixing seat; the clamping assembly I is movably connected in the guide groove II in a left-right mode; the second connecting seat is positioned on the right side of the clamping assembly I, the second connecting seat is movably connected on the right side in the guide groove II in a left-right mode, and the center of the bottom of the second connecting seat is hinged with the left sides of the first connecting rod and the second connecting rod respectively; the guide groove III is arranged in the center of the upper side of the fixing seat; the second clamping seat is movably connected in the guide groove III up and down, and the lower side of the second clamping seat is fixedly connected with the connecting seat III; the center of the bottom of the connecting seat III is hinged with the upper sides of the connecting rod II and the connecting rod III respectively; the guide groove IV is arranged in the center of the right side of the fixing seat; the clamping assembly II is movably connected in the guide groove IV in the left-right mode, and the left lower side of the clamping assembly II is fixedly connected with the right lower side of the connecting seat II through the connecting piece II; the connecting seat is positioned on the left side of the clamping assembly II, the left side and the right side of the connecting seat are movably connected in the guide groove IV, the center of the bottom of the connecting seat is hinged with the right sides of the connecting rod III and the connecting rod IV, and the left upper side of the connecting seat is fixedly connected with the right upper side of the clamping assembly I through a connecting piece.
Preferably, the surface of the fixing seat is provided with one or more fixing holes.
Preferably, the plurality of fixing holes are distributed on the surface of the fixing seat in a matrix.
Preferably, the fixing holes are circular holes or matrix holes.
Preferably, the first, second, third and fourth links have the same length.
Preferably, the first clamping assembly and the second clamping assembly have the same structure.
Preferably, the specific structure of the clamping assembly II comprises a movable block, a T-shaped groove, a movable clamping block and a spring; a T-shaped groove is formed in the upper left side of the movable block; the T-shaped groove is movably connected with a movable clamping block.
Preferably, the movable clamping block is elastically connected with the side wall of the T-shaped groove through a spring.
Preferably, two ends of the spring are provided with buckling ends, and the side walls of the movable clamping block (203) and the T-shaped groove are provided with clamping grooves matched with the buckling ends.
Preferably, the snap end has a double-layer structure, which includes: each layer of structure comprises a plurality of horizontal outwards extending arc clamping parts, the arc clamping parts of the positioning layers are fixedly connected with the end rod, the arc clamping parts of the clamping layers are rotationally connected with the end rod, and a plurality of protrusions are arranged on the surfaces of the arc clamping parts of the positioning layers.
The invention has the beneficial effects that: the invention has the advantages of reasonable and simple structure, low production cost and convenient installation and complete functions, firstly square workpieces are placed on the fixed seat, then the screw is driven to rotate through the rotating head, the clamping seat I and the connecting seat II are driven to move inwards through the nut seat by the rotation of the screw, meanwhile, under the combined action of the connecting rod I, the connecting rod II, the connecting rod III and the connecting rod IV, the connecting seat III and the connecting seat I are driven to move inwards, so that one side of the workpieces is centered and clamped through the clamping seat I and the clamping seat II, the connecting seat II and the connecting seat IV are driven to move outwards, and meanwhile, the clamping assembly I and the clamping assembly II are driven to move inwards or outwards through the connecting piece and the connecting piece II, and the workpieces are centered and clamped through the clamping seat I, the clamping assembly II and the clamping assembly II are driven to move inwards or outwards simultaneously, so that the requirements of centering and clamping of the workpieces are rapidly carried out are met, and the processing efficiency and quality are improved.
Description of the drawings:
for ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural diagram of a second clamping assembly.
Fig. 3 is a schematic structural view of the snap end.
1-a fixed seat; 2-a first guide groove; 3-a rotating head; 4-a screw; 5-fixing pieces; 6-a nut seat; 7-clamping seat I; 8-a first connecting seat; 9-a first connecting rod; 10-clamping assembly I; 11-a second guide groove; 12-a second connecting seat; 13-a second connecting rod; 14-connecting piece; 15-a connecting seat III; 16-a clamping seat II; 17-a guide groove III; 18-connecting rod III; 19-a connecting seat IV; 20-clamping assembly II; 21-second connector; 22-a connecting rod IV; 23-a guide groove IV; 201-a movable block; 202-T-shaped slots; 203-a movable clamp block; 204-a spring; 205-snap end; 206-end bar; 207-arc clamping part; 208-bump.
The specific embodiment is as follows:
as shown in fig. 1, the present embodiment adopts the following technical scheme: a quick and accurate centering and positioning clamp for a machining center comprises a fixed seat 1, a first guide groove 2, a rotating head 3, a screw 4, a fixing piece 5, a nut seat 6, a first clamping seat 7, a first connecting seat 8, a first connecting rod 9, a first clamping component 10, a second guide groove 11, a second connecting seat 12, a second connecting rod 13, a connecting piece 14, a third connecting seat 15, a second clamping seat 16, a third guide groove 17, a third connecting rod 18, a fourth connecting seat 19, a second clamping component 20, a second connecting piece 21, a fourth connecting rod 22 and a fourth guide groove 23; the first guide groove 2 is arranged in the center of the lower side of the fixed seat 1; the screw 4 is movably connected in the first guide groove 2 through a fixing piece 5, the end part of the screw 4 is fixedly connected with a rotating head 3, and a nut seat 6 is movably connected on the screw 4; the nut seat 6 is fixedly connected to the lower side of the clamping seat I7; the clamping seat I7 is movably connected in the guide groove I2 up and down, and the upper side of the clamping seat I7 is fixedly connected with the connecting seat I8; the center of the bottom of the first connecting seat 8 is hinged with the lower sides of the first connecting rod 9 and the fourth connecting rod 22 respectively; the second guide groove 11 is arranged in the center of the left side of the fixed seat 1; the clamping assembly I10 is movably connected in the guide groove II 11 from left to right; the second connecting seat 12 is positioned on the right side of the first clamping component 10, the second connecting seat 12 is movably connected on the right side in the second guide groove 11 in the left-right direction, and the center of the bottom of the second connecting seat 12 is hinged with the left sides of the first connecting rod 9 and the second connecting rod 13 respectively; the guide groove III 17 is arranged in the center of the upper side of the fixed seat 1; the second clamping seat 16 is vertically movably connected in the third guide groove 17, and the lower side of the second clamping seat 16 is fixedly connected with the third connecting seat 15; the center of the bottom of the third connecting seat 15 is hinged with the upper sides of the second connecting rod 13 and the third connecting rod 18 respectively; the guide groove IV 23 is arranged in the center of the right side of the fixed seat 1; the left and right sides of the second clamping component 20 are movably connected in the guide groove IV 23, and the left lower side of the second clamping component 20 is fixedly connected with the right lower side of the second connecting seat 12 through the second connecting piece 21; the fourth connecting seat 19 is positioned on the left side of the second clamping component 20, the left and right sides of the fourth connecting seat 19 are movably connected on the left side in the fourth guide groove 23, the center of the bottom of the fourth connecting seat 19 is hinged with the right sides of the third connecting rod 18 and the fourth connecting rod 22, and the left upper side of the fourth connecting seat 19 is fixedly connected with the right upper side of the first clamping component 10 through the connecting piece 14.
Wherein fixing holes are formed in four corners of the fixing seat 1; the length of the first connecting rod 9, the second connecting rod 13, the third connecting rod 18 and the fourth connecting rod 22 is the same; the first clamping assembly 10 and the second clamping assembly 20 have the same structure.
As shown in fig. 2, the specific structure of the second clamping assembly 20 includes a movable block 201, a T-shaped slot 202, a movable clamping block 203 and a spring 204; a T-shaped groove 202 is formed in the upper left side of the movable block 201; a movable clamping block 203 is movably connected left and right in the T-shaped groove 202; a spring 204 is arranged between the right lower side surface of the movable clamping block 203 and the right side surface inside the T-shaped groove 202.
The use state of the invention is as follows: the invention has the advantages of reasonable and simple structure, low production cost and convenient installation and complete functions, when in use, firstly square workpieces are placed on the fixed seat 1, then the screw 4 is driven to rotate through the rotating head 3, the clamping seat I7 and the connecting seat I8 are moved inwards through the nut seat 6 by the rotation of the screw 4, meanwhile, under the combined action of the connecting rod I9, the connecting rod II 13, the connecting rod III 18 and the connecting rod IV 22, the connecting seat III 15 and the connecting seat I8 are moved inwards together, so that one side of the workpieces is centered and clamped through the clamping seat I7 and the clamping seat II 16, and the connecting seat II 12 and the connecting seat IV 19 are moved outwards together, meanwhile, the clamping assembly I10 and the clamping assembly II 20 are moved inwards together through the connecting piece 14 and the connecting piece II 21 to center the other side of the workpieces, and the four connecting rods and the two connecting pieces arranged in the process the clamping seat I7, the clamping seat II 16, the clamping assembly I10 and the clamping assembly II 20 are moved inwards or outwards simultaneously, the workpieces are centered and clamped by the inward movement simultaneously, and the workpieces are loosened by the outward movement, so that the centering and quick positioning and machining quality can be realized.
In order to further optimize the implementation of the present invention, in other embodiments, the remaining features are the same, except that the two ends of the spring 204 are provided with snap ends 205, and the side walls of the movable clamp block 203 and the T-shaped slot 202 are provided with snap grooves matching the snap ends 205.
With the above embodiment, the installation is more convenient, the assembly is faster, and the replacement of the spring 204 is facilitated.
Further, the snap end 205 has a double-layer structure, which includes: each layer of structure comprises a plurality of circular arc clamping parts 207 extending horizontally outwards, the circular arc clamping parts 207 of the positioning layers are fixedly connected with the end rods 206, the circular arc clamping parts 207 of the clamping layers are rotationally connected with the end rods 206, and a plurality of protrusions 208 are arranged on the surfaces of the circular arc clamping parts 207 of the positioning layers.
By adopting the above embodiment, the assembly is firmer, the plurality of protrusions 208 on the surface of the circular arc clamping part 207 of the positioning layer are mainly matched with the positioning grooves in the clamping grooves, and after the matching, the circular arc clamping part 207 of the clamping layer is rotated, so that the circular arc clamping part 207 and the clamping grooves are firmly clamped, and the quick installation is realized.
While the basic principles and main features of the present invention and advantages of the present invention have been shown and described, it will be understood by those skilled in the art that the present invention is not limited by the foregoing embodiments, which are described in the foregoing specification merely illustrate the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined in the appended claims and their equivalents.
Claims (5)
1. Quick accurate centering positioning fixture in machining center, its characterized in that: the device comprises a fixing seat (1), a first guide groove (2), a rotating head (3), a screw (4), a fixing piece (5), a nut seat (6), a first clamping seat (7), a first connecting seat (8), a first connecting rod (9), a first clamping component (10), a second guide groove (11), a second connecting seat (12), a second connecting rod (13), a connecting piece (14), a third connecting seat (15), a second clamping seat (16), a third guide groove (17), a third connecting rod (18), a fourth connecting seat (19), a second clamping component (20), a second connecting piece (21), a fourth connecting rod (22) and a fourth guide groove (23);
the first guide groove (2) is arranged in the center of the lower side of the fixed seat (1);
the screw (4) is movably connected in the first guide groove (2) through a fixing piece (5), the end part of the screw (4) is fixedly connected with the rotating head (3), and the upper surface of the screw (4) is movably connected with the nut seat (6);
the nut seat (6) is fixedly connected to the lower side of the clamping seat I (7);
the clamping seat I (7) is vertically movably connected in the guide groove I (2), and the upper side of the clamping seat I (7) is fixedly connected with the connecting seat I (8);
the center of the bottom of the first connecting seat (8) is hinged with the lower sides of the first connecting rod (9) and the fourth connecting rod (22) respectively;
the guide groove II (11) is arranged in the center of the left side of the fixed seat (1);
the clamping assembly I (10) is movably connected in the guide groove II (11) left and right;
the second connecting seat (12) is positioned on the right side of the first clamping assembly (10), the second connecting seat (12) is movably connected on the right side in the second guide groove (11) left and right, and the center of the bottom of the second connecting seat (12) is hinged with the left sides of the first connecting rod (9) and the second connecting rod (13) respectively;
the guide groove III (17) is arranged in the center of the upper side of the fixed seat (1);
the second clamping seat (16) is vertically movably connected in the third guide groove (17), and the lower side of the second clamping seat (16) is fixedly connected with the third connecting seat (15);
the bottom center of the connecting seat III (15) is hinged with the upper sides of the connecting rod II (13) and the connecting rod III (18) respectively;
the guide groove IV (23) is arranged in the center of the right side of the fixed seat (1);
the left and right sides of the second clamping component (20) are movably connected in the guide groove IV (23), and the left lower side of the second clamping component (20) is fixedly connected with the right lower side of the second connecting seat (12) through the second connecting piece (21);
the fourth connecting seat (19) is positioned on the left side of the second clamping component (20), the fourth connecting seat (19) is movably connected on the left side in the fourth guide groove (23), the center of the bottom of the fourth connecting seat (19) is hinged with the right sides of the third connecting rod (18) and the fourth connecting rod (22), and the left upper side of the fourth connecting seat (19) is fixedly connected with the right upper side of the first clamping component (10) through the connecting piece (14);
the specific structure of the clamping assembly II (20) comprises a movable block (201), a T-shaped groove (202), a movable clamping block (203) and a spring (204);
a T-shaped groove (202) is formed in the upper left side of the movable block (201);
the T-shaped groove (202) is movably connected with a movable clamping block (203);
the movable clamping block (203) is elastically connected with the side wall of the T-shaped groove (202) through a spring (204);
both ends of the spring (204) are provided with clamping ends (205), and clamping grooves matched with the clamping ends (205) are formed in the side walls of the movable clamping block (203) and the T-shaped groove (202);
the buckle end (205) is of a double-layer structure, and comprises: each layer of structure comprises a plurality of circular arc clamping parts (207) extending horizontally outwards, the circular arc clamping parts (207) of the positioning layers are fixedly connected with the end rod (206), the circular arc clamping parts (207) of the clamping layers are rotationally connected with the end rod (206), and a plurality of bulges (208) are arranged on the surface of the circular arc clamping parts (207) of the positioning layers;
the lengths of the first connecting rod (9), the second connecting rod (13), the third connecting rod (18) and the fourth connecting rod (22) are the same.
2. The quick and accurate centering and positioning fixture for a machining center according to claim 1, wherein: one or more fixing holes are formed in the surface of the fixing seat (1).
3. The quick and accurate centering and positioning fixture for a machining center according to claim 2, wherein: the fixing holes are distributed on the surface of the fixing seat (1) in a matrix.
4. A machining center quick and accurate centering positioning fixture according to claim 3, wherein: the fixing holes are round holes or matrix holes.
5. The quick and accurate centering and positioning fixture for a machining center according to claim 1, wherein: the first clamping component (10) and the second clamping component (20) have the same structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710794989.1A CN107336051B (en) | 2017-09-05 | 2017-09-05 | Quick accurate centering positioning fixture of machining center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710794989.1A CN107336051B (en) | 2017-09-05 | 2017-09-05 | Quick accurate centering positioning fixture of machining center |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107336051A CN107336051A (en) | 2017-11-10 |
| CN107336051B true CN107336051B (en) | 2023-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710794989.1A Active CN107336051B (en) | 2017-09-05 | 2017-09-05 | Quick accurate centering positioning fixture of machining center |
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| CN (1) | CN107336051B (en) |
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| CN108772367A (en) * | 2018-03-27 | 2018-11-09 | 苏州林信源自动化科技有限公司 | Rack in a kind of ultrasonic cleaning pond |
| CN109176337A (en) * | 2018-07-28 | 2019-01-11 | 安徽京冠派克流体科技有限公司 | A kind of processing of cleaning pipette tips is used for rapid fixing |
| CN108788829A (en) * | 2018-08-09 | 2018-11-13 | 柳州通亿汽车配件制造有限公司 | A kind of frock clamp convenient for adjusting |
| CN109397137B (en) * | 2018-11-09 | 2021-07-23 | 广东天机工业智能系统有限公司 | Centering device |
| CN111702512B (en) * | 2020-06-24 | 2021-06-25 | 广州南档科技有限公司 | Positioning fixture of metal parts for numerical control machine tool |
| CN112045561B (en) * | 2020-09-04 | 2021-10-22 | 台州浙盛轴承科技有限公司 | Clamping device for bearing machining |
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| CN107336051A (en) | 2017-11-10 |
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