CN110936039B - Automatic positioning and clamping tool device for laser processing - Google Patents
Automatic positioning and clamping tool device for laser processing Download PDFInfo
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- CN110936039B CN110936039B CN201911313244.4A CN201911313244A CN110936039B CN 110936039 B CN110936039 B CN 110936039B CN 201911313244 A CN201911313244 A CN 201911313244A CN 110936039 B CN110936039 B CN 110936039B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/40—Removing material taking account of the properties of the material involved
- B23K26/402—Removing material taking account of the properties of the material involved involving non-metallic material, e.g. isolators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses an automatic positioning and clamping tool device for laser processing, which comprises: the device comprises a fixing device, a cylinder moving device and an upper panel; the fixing device comprises a fixing base, two side pressing elastic sheets, a middle push rod and a fixing rod adapter flange; wherein, the fixed base and the cylinder moving device are both arranged on the upper panel; the workpiece is arranged in the material placing area of the fixed base; the fixed rod adapter flange is connected with a push rod of the cylinder movement device; the middle push rod is connected with a first spring of the fixed rod adapter flange; the bottom of the bilateral pressing elastic sheet is arranged in a wedge-shaped guide groove formed in the side wall of the fixed base, and the bottom of the bilateral pressing elastic sheet is connected with a second spring of the fixed rod adapter flange. The invention is not influenced by high-pressure airflow, and simultaneously reduces control nodes, shortens automatic beats and saves the space of a processing position.
Description
Technical Field
The invention belongs to the technical field of laser processing, and particularly relates to an automatic positioning and clamping tool device for laser processing.
Background
The quartz belongs to typical hard and brittle materials, has the characteristic of high reliability, and has wide application in various strategic/tactical weapon navigation, guidance and control systems in the fields of aviation, aerospace, navigation and ground. The quartz flexible accelerometer, the quartz vibrating beam accelerometer and the like adopt a precise quartz structure as a key sensitive unit. Due to quartz to CO2Strong absorption characteristic of laser wavelength, using CO2The cutting of quartz substrates by laser processing equipment has become a new technical means for replacing the traditional processing methods such as grinding wheel or corrosion.
In automatic laser cutting quartz substrate in-process, need the automatic positioning of accurate fixed quartz substrate to press from both sides tight frock, V type draw-in groove combines cylinder push rod structure can be with the accurate location of quartz substrate, nevertheless need utilize high-pressure gas to blow off by the quartz substrate that laser melted at the quartz in-process of laser cutting, for guaranteeing the stability of work piece in high-pressure draught this moment, if increase push rod thrust, then probably crowd rubble quartz substrate, push rod thrust is not enough then probably leads to quartz substrate to remove in high-pressure draught, influence the cutting accuracy. In the prior art, a lifting cylinder matched with a rotary screw rod is added, and a cantilever is driven by the lifting cylinder to compress a quartz substrate after the quartz substrate is clamped by a push rod and a V-shaped clamping groove. However, the structure can add control nodes to the whole system, slow down the automatic beat, occupy the space of a processing position and increase the potential safety hazard.
Disclosure of Invention
The technical problem solved by the invention is as follows: the defects of the prior art are overcome, the automatic positioning and clamping tool device for laser processing is provided, the device is not influenced by high-pressure airflow, and meanwhile, control nodes are reduced, automatic beats are shortened, and the space of a processing position is saved.
The purpose of the invention is realized by the following technical scheme: the utility model provides a laser beam machining automatic positioning presss from both sides tight tool equipment, includes: the device comprises a fixing device, a cylinder moving device and an upper panel; the fixing device comprises a fixing base, two side pressing elastic sheets, a middle push rod and a fixing rod adapter flange; the fixed base and the cylinder moving device are both arranged on the upper panel; the workpiece is arranged in the material placing area of the fixed base; the fixed rod adapter flange is connected with a push rod of the cylinder motion device; the middle push rod is connected with a first spring of the fixed rod adapter flange; the cylinder motion device can push the workpiece to move to a position to be processed through the fixed rod adapter flange and the middle push rod; the bottom ends of the two-side pressing elastic pieces are arranged in wedge-shaped guide grooves formed in the side walls of the fixed base, and the bottom ends of the two-side pressing elastic pieces are connected with a second spring of the fixed rod adapter flange; the cylinder movement device can push the bilateral compression spring plates through the fixed rod adapter flange, so that the bilateral compression spring plates move along the wedge-shaped tracks of the wedge-shaped guide grooves, the upper ends of the bilateral compression spring plates are driven to press downwards, and a workpiece is fixed.
In the automatic positioning and clamping tooling device for laser processing, the fixed base comprises a V-shaped clamping groove, a middle-arranged sliding chute, two-side wedge-shaped guide grooves and a blanking hole; the middle push rod is placed in the middle sliding groove and can move along the middle sliding groove; the bottom ends of the bilateral pressing elastic pieces are arranged in wedge-shaped guide grooves formed in the side walls of the fixed base; the V-shaped clamping groove is combined with the extended middle push rod and the round workpiece to generate three contact points, and the workpiece is accurately fixed at a position to be machined by utilizing three-point positioning; the blanking hole is right below the workpiece; the middle sliding groove is a sliding groove with two open ends.
In the automatic positioning and clamping tooling device for laser processing, the bilateral compression elastic pieces are made of elastic steel sheets, the bottom end of the bilateral compression elastic pieces is thinner than the upper end of the bilateral compression elastic pieces, the bottom end of the bilateral compression elastic pieces is beneficial to bending along with the wedge-shaped guide groove of the fixed base, the rear end of the bilateral compression elastic pieces is thickened and is matched with the square part shape of the wedge-shaped guide groove, and the motion stability of the bilateral compression elastic pieces is ensured; the contact surface part of the two-side compression spring plates for compressing the workpiece is provided with a non-metal material layer, so that the protection on the surface of the workpiece is enhanced.
In the automatic positioning and clamping tooling device for laser processing, the non-metallic material layer is made of nylon or polytetrafluoroethylene.
In the automatic positioning and clamping tool device for laser processing, the diameter of the blanking hole is smaller than that of the workpiece.
Among the above-mentioned laser beam machining automatic positioning presss from both sides tight fixture device, still include: a blanking shell and a waste box; the upper panel is provided with a second blanking hole, the second blanking hole of the upper panel corresponds to the blanking hole of the fixing base, the upper panel is fixed on the blanking shell, the waste material box is arranged in the blanking shell, waste materials generated by the workpiece in the machining process fall into the waste material box through the fixing base and the second blanking hole of the upper panel, and the waste material box is extracted to clean the waste materials.
In the automatic positioning and clamping tooling device for laser processing, the bilateral pressing elastic pieces comprise pressing pieces and fixing pieces; wherein the pressing sheet and the fixing sheet are integrally connected; the length direction of the pressing piece is vertical to that of the fixing piece; the fixing piece is arranged in the wedge-shaped guide groove, and the pressing piece is located on the upper portion of the fixing base.
In the automatic positioning and clamping tooling device for laser processing, the thickness of the pressing sheet is 1mm, and the thickness of the rear part of the fixing sheet is 3 mm.
In the automatic positioning and clamping tooling device for laser processing, the rear part of the fixing piece is provided with the round hole.
In the automatic positioning and clamping device for laser processing, the cylinder pressure of the cylinder movement device is 15 kPa-25 kPa.
Compared with the prior art, the invention has the following beneficial effects:
(1) the springs are arranged at the connecting parts of the pressing elastic sheets at the two sides and the middle push rod, so that the pressing elastic sheets, the push rod and the workpiece are prevented from generating overlarge force due to rigid contact, and the rhythm and the sequence of the pushing action of the workpiece in place and the pressing action can be controlled by adjusting the lengths and the forces of the pressing elastic sheets and the middle push rod springs;
(2) the pressure of the air cylinder is 15 kPa-25 kPa, so that on one hand, the stability of the fixing piece is ensured, and on the other hand, the damage of excessive thrust and pressure to the workpiece is avoided.
(3) The workpiece is fixed by the bilateral pressing elastic pieces and the middle push rod, so that the workpiece is not influenced by high-pressure airflow, and the cutting precision is improved.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic view of an automatic positioning and clamping tooling device for laser processing according to the present invention;
FIG. 2 is an exploded view of the automatic positioning and clamping tooling device for laser processing of the present invention;
FIG. 3 is a structural diagram of deformation tracks of bilateral compression spring plates inside a sliding chute along with the sliding chute;
fig. 4 is a schematic application diagram of the automatic positioning and clamping tooling device for laser processing of the invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
FIG. 1 is a schematic view of an automatic positioning and clamping tooling device for laser processing according to the present invention; fig. 2 is an exploded schematic view of the automatic positioning and clamping tooling device for laser processing of the invention. As shown in fig. 1 and 2, the automatic positioning and clamping tooling device for laser processing comprises a fixing device, a cylinder moving device 5 and an upper panel 8; the fixing device comprises a fixing base 1, two side pressing elastic sheets 2, a middle push rod 3 and a fixing rod adapter flange 4; wherein the content of the first and second substances,
the fixed base 1 and the cylinder movement device 5 are both arranged on the upper panel 8; the workpiece 9 is arranged in the material placing area of the fixed base 1;
the fixed rod adapter flange 4 is connected with a push rod of the cylinder motion device 5;
the middle push rod 3 is connected with a first spring 41 of the fixed rod adapter flange 4; the cylinder motion device 5 can push the workpiece 9 to move to a position to be processed through the fixed rod adapter flange 4 and the middle push rod 3;
the bottom ends of the two-side compression elastic pieces 2 are arranged in wedge-shaped guide grooves formed in the side walls of the fixed base 1, and the bottom ends of the two-side compression elastic pieces 2 are connected with the second spring 42 of the fixed rod adapter flange 4; the cylinder movement device 5 can push the bilateral compression spring pieces 2 through the fixing rod adapter flange 4, so that the bilateral compression spring pieces 2 move along the wedge-shaped tracks of the wedge-shaped guide grooves, the upper ends of the bilateral compression spring pieces 2 are driven to be pressed downwards, and the workpiece 9 is fixed.
As shown in fig. 2, the fixed base 1 includes a V-shaped slot, a middle-set chute, a double-side wedge-shaped guide slot and a blanking hole; wherein the content of the first and second substances,
the middle push rod 3 is placed in the middle sliding groove, and the middle push rod 3 can move along the middle sliding groove; the bottom end of the double-side pressing elastic sheet 2 is arranged in a wedge-shaped guide groove formed in the side wall of the fixed base 1, and the air cylinder movement device 5 can push the double-side pressing elastic sheet 2 through the fixed rod adapter flange 4 to enable the double-side pressing elastic sheet 2 to move along a wedge-shaped track of the wedge-shaped guide groove; the V-shaped clamping groove is combined with the extended middle push rod 3 and the round workpiece 9 to generate three contact points, and the workpiece 9 is accurately fixed at a position to be processed by three-point positioning; the blanking hole is arranged right below the workpiece 9, and the diameter of the blanking hole is smaller than that of the workpiece 9; the middle sliding groove is a sliding groove with two open ends.
The two-side compression elastic pieces 2 are made of elastic steel sheets, the bottom end of each elastic piece is thinner than the upper end of each elastic piece, the bottom end of each elastic piece is beneficial to bending along with the wedge-shaped guide groove of the fixed base 1, the rear end of each elastic piece is thickened and is matched with the square part shape of the wedge-shaped guide groove, and the two-side compression elastic pieces 2 are guaranteed to move stably; the contact surface part of the two-side pressing elastic sheet 2 pressing the workpiece 9 is provided with a non-metal material layer, so that the protection of the surface of the workpiece 9 is enhanced. The non-metallic material layer is made of nylon or polytetrafluoroethylene.
As shown in fig. 1 and 2, the automatic positioning and clamping tooling device for laser processing further comprises: a blanking shell 6 and a waste box 7; wherein, top panel 8 is provided with second blanking hole, the second blanking hole of top panel 8 is corresponding with unable adjustment base 1's blanking hole, and top panel 8 is fixed on blanking shell 6, and waste material box 7 is in blanking shell 6, and the waste material that work piece 9 produced in the course of working falls into waste material box 7 through unable adjustment base 1 and top panel 8's second blanking hole in, and waste material box 7 takes out the clearance waste material.
When the device works, a workpiece 9 is placed in a material placing area of a fixed base 1 by an automatic device such as a mechanical arm or manually, a cylinder 5 extends out, a middle push rod 3 and a double-side pressing elastic sheet 2 are pushed by a fixed rod adapter flange 4, the front end of the middle push rod 3 is firstly contacted with the workpiece 9 to push the workpiece 9 to a position to be processed, the cylinder 5 continuously extends out to compress a spring at the tail of the middle push rod 3, when the spring is compressed by 1-2 mm, the front end of the double-side pressing elastic sheet 2 bends downwards along a wedge-shaped track of guide grooves at two sides of the fixed base 1, as shown in figure 3, a pressing sheet above the double-side pressing elastic sheet 2 is driven to press downwards, so that the workpiece 9 is fixed, at the moment, the spring at the tail end of the push rod 3 is compressed by 6-7 mm to ensure that the workpiece 9 is pushed to the position to be processed, and the workpiece 9 is not damaged due to overlarge pressure, the double-side pressing elastic sheet 2 presses downwards by 2-3 mm to compress the workpiece 9, so as to ensure that the workpiece 9 is not displaced due to the laser effect or high-pressure airflow in the laser processing process, affecting the machining accuracy.
In one embodiment, a polytetrafluoroethylene gasket is additionally arranged on the contact surface part of the double-side pressing elastic sheet 2 and the workpiece 9, so that the surface protection of the workpiece 9 is enhanced.
Examples
The embodiment mainly aims at the laser cutting quartz substrate system to fix the workpiece, ensures that the workpiece is automatically, stably and accurately positioned, does not damage the workpiece, and is suitable for a precise numerical control processing system.
In the embodiment, the laser cutting quartz substrate system is composed of a gantry structure frame 21, a Z-axis displacement table 22, a laser cutting head 23, an automatic positioning and clamping tool device 24 and an XY-axis displacement table 25. A German Roots laser was used to cut quartz substrates, which were wafers 22mm in diameter and 1.5mm thick. During operation, firstly, the automatic positioning and clamping tool device 24 accurately positions the quartz substrate at the position to be processed and stably fixes the quartz substrate, the Z-axis displacement table adjusts the laser cutting head 23 to the cutting height, then the laser cutting head emits light and sprays compressed gas, and meanwhile, the XY-axis displacement table drives the automatic positioning and clamping tool device 24 and the quartz substrate installation cutting path to displace, so that cutting processing is completed. The cutting excess material falls into the waste material box 7 of the automatic positioning and clamping tool device 24, and the waste material box 7 can be taken out periodically to remove the accumulated cutting excess material.
After the automatic positioning and clamping tool device 24 is adopted, the qualification rate and the efficiency of processed products are obviously improved, and the working process beat is saved.
The invention only uses one air cylinder to complete two actions of pushing and pressing the workpiece, thereby saving the pneumatic devices and system control nodes of the equipment.
The springs are arranged at the connecting parts of the pressing elastic sheets at the two sides and the middle push rod, so that excessive force generated by rigid contact between the pressing elastic sheets and the push rod and a workpiece is prevented, and the rhythm and the sequence of the pushing-in-place and pressing actions of the workpiece can be controlled by adjusting the lengths and the forces of the pressing elastic sheets and the middle push rod springs.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make variations and modifications of the present invention without departing from the spirit and scope of the present invention by using the methods and technical contents disclosed above.
Claims (10)
1. The utility model provides a laser beam machining automatic positioning presss from both sides tight tool equipment which characterized in that includes: a fixing device, a cylinder moving device (5) and an upper panel (8); the fixing device comprises a fixing base (1), two-side pressing elastic sheets (2), a middle push rod (3) and a fixing rod adapter flange (4); wherein the content of the first and second substances,
the fixed base (1) and the cylinder movement device (5) are both arranged on the upper panel (8);
the workpiece (9) is arranged in the material placing area of the fixed base (1);
the fixed rod adapter flange (4) is connected with a push rod of the cylinder movement device (5);
the middle push rod (3) is connected with a first spring (41) of the fixed rod adapter flange (4); the cylinder motion device (5) can push a workpiece (9) to move to a position to be processed through the fixed rod adapter flange (4) and the middle push rod (3);
the bottom ends of the two-side pressing elastic pieces (2) are arranged in wedge-shaped guide grooves formed in the side walls of the fixed base (1), and the bottom ends of the two-side pressing elastic pieces (2) are connected with a second spring (42) of the fixed rod adapter flange (4); the cylinder moving device (5) can push the bilateral pressing elastic pieces (2) through the fixing rod adapter flange (4) so that the bilateral pressing elastic pieces (2) move along the wedge-shaped tracks of the wedge-shaped guide grooves to drive the upper ends of the bilateral pressing elastic pieces (2) to be pressed downwards, and therefore a workpiece (9) is fixed.
2. The automatic positioning and clamping tool device for laser processing according to claim 1, characterized in that: the fixed base (1) comprises a V-shaped clamping groove, a middle-arranged sliding groove, two-side wedge-shaped guide grooves and a blanking hole; wherein the content of the first and second substances,
the middle push rod (3) is placed in the middle sliding groove, and the middle push rod (3) can move along the middle sliding groove;
the bottom ends of the bilateral pressing elastic pieces (2) are arranged in wedge-shaped guide grooves formed in the side walls of the fixed base (1);
the V-shaped clamping groove is combined with the extended middle push rod (3) and the round workpiece (9) to generate three contact points, and the workpiece (9) is accurately fixed at a position to be machined by utilizing three-point positioning;
the blanking hole is arranged right below the workpiece (9);
the middle sliding groove is a sliding groove with two open ends.
3. The automatic positioning and clamping tool device for laser processing according to claim 1, characterized in that: the two-side compression elastic sheet (2) is made of an elastic steel sheet, the bottom end of the two-side compression elastic sheet is thinner than the upper end of the two-side compression elastic sheet, the two-side compression elastic sheet is beneficial to bending along with the wedge-shaped guide groove of the fixed base (1), the rear end of the two-side compression elastic sheet is thickened and is matched with the square part shape of the wedge-shaped guide groove, and the motion stability of the two-side compression elastic sheet (2) is ensured; the contact surface part of the two-side pressing elastic sheet (2) pressing workpiece (9) is provided with a non-metal material layer, so that the protection of the surface of the workpiece (9) is enhanced.
4. The automatic positioning and clamping tool device for laser processing according to claim 3, characterized in that: the non-metal material layer is made of nylon or polytetrafluoroethylene.
5. The automatic positioning and clamping tool device for laser processing according to claim 2, characterized in that: the diameter of the blanking hole is smaller than that of the workpiece (9).
6. The automatic positioning and clamping tool device for laser processing according to claim 3, further comprising: a blanking shell (6) and a waste box (7); wherein the content of the first and second substances,
the upper panel (8) is provided with a second blanking hole, the second blanking hole of the upper panel (8) corresponds to the blanking hole of the fixed base (1), the upper panel (8) is fixed on the blanking shell (6), the waste material box (7) is arranged in the blanking shell (6), waste materials generated in the machining process of the workpiece (9) fall into the waste material box (7) through the second blanking holes of the fixed base (1) and the upper panel (8), and the waste material box (7) is extracted to clean the waste materials.
7. The automatic positioning and clamping tool device for laser processing according to claim 3, characterized in that: the double-side compression elastic sheet (2) comprises a compression sheet (211) and a fixing sheet (212); wherein the content of the first and second substances,
the pressing piece (211) and the fixing piece (212) are integrally connected;
the length direction of the pressing piece (211) is vertical to the length direction of the fixing piece (212);
the fixing piece (212) is arranged in the wedge-shaped guide groove, and the pressing piece (211) is positioned at the upper part of the fixed base (1).
8. The automatic positioning and clamping tool device for laser processing according to claim 7, characterized in that: the thickness of compressing tightly piece (211) is 1mm, the thickness of rear portion (2121) of stationary blade (212) is 3 mm.
9. The automatic positioning and clamping tool device for laser processing according to claim 8, characterized in that: the rear part (2121) of the fixing piece (212) is provided with a round hole.
10. The automatic positioning and clamping tool device for laser processing according to claim 1, characterized in that: the cylinder pressure of the cylinder movement device (5) is 15 kPa-25 kPa.
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| CN201911313244.4A CN110936039B (en) | 2019-12-19 | 2019-12-19 | Automatic positioning and clamping tool device for laser processing |
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| CN201911313244.4A CN110936039B (en) | 2019-12-19 | 2019-12-19 | Automatic positioning and clamping tool device for laser processing |
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| CN103753249A (en) * | 2013-11-25 | 2014-04-30 | 重庆天之道科技发展有限公司 | Lever linkage clamping device |
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| CN206316810U (en) * | 2016-12-26 | 2017-07-11 | 宁波勋辉电器有限公司 | A kind of frock side pushes away clamp system |
| CN209175171U (en) * | 2018-10-24 | 2019-07-30 | 南通慧宁机电科技有限公司 | A kind of round tube, angle bar and disk welding Pneumatic clamping device |
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| CN110936039A (en) | 2020-03-31 |
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