CN105014443B - Efficient clamp special for groove-shaped workpieces - Google Patents

Efficient clamp special for groove-shaped workpieces Download PDF

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Publication number
CN105014443B
CN105014443B CN201510420408.9A CN201510420408A CN105014443B CN 105014443 B CN105014443 B CN 105014443B CN 201510420408 A CN201510420408 A CN 201510420408A CN 105014443 B CN105014443 B CN 105014443B
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China
Prior art keywords
channel
clamping
shaped workpiece
clamping plate
connecting plate
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Active
Application number
CN201510420408.9A
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Chinese (zh)
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CN105014443A (en
Inventor
叶青健
刘世泉
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Foshan Pratic CNC Science and Technology Co Ltd
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Foshan Pratic CNC Science and Technology Co Ltd
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Priority to CN201510420408.9A priority Critical patent/CN105014443B/en
Publication of CN105014443A publication Critical patent/CN105014443A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02Devices 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
    • B23Q3/06Work-clamping means
    • B23Q3/062Work-clamping means adapted for holding workpieces having a special form or being made from a special material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02Devices 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
    • B23Q3/06Work-clamping means
    • B23Q3/08Work-clamping means other than mechanically-actuated
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q2703/00Work clamping
    • B23Q2703/02Work clamping means
    • B23Q2703/10Devices for clamping workpieces of a particular form or made from a particular material

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

An efficient clamp special for groove-shaped workpieces comprises a base and a clamping assembly. The clamping assembly comprises connection boards, fixing shafts, clamping boards, positioning pressure blocks, clamping bolts and pushing cylinders; the two connection boards are arranged on the base in parallel; the two fixing shafts are arranged between the two connection boards in parallel; the fixing shafts and the connection boards are perpendicular; the two ends of the clamping boards are connected to the two fixing shafts in series in a sliding mode respectively; the multiple clamping boards are arranged between the two connection boards. The front lateral faces and the rear lateral faces of the clamping boards limit the movement of the groove-shaped workpieces in the front-and-back direction; the positioning pressure blocks and the clamping bolts limit movement of the groove-shaped workpieces in the vertical direction; finally, the pushing cylinders push the connection boards together tightly, and movement of the groove-shaped workpieces along with the connection boards in the left-and-right direction is limited.

Description

A kind of High efficient clamp for being exclusively used in channel-shaped workpiece
Technical field
The present invention relates to field of fixture equipment, particularly a kind of High efficient clamp for being exclusively used in channel-shaped workpiece.
Background technology
With the development of Numeric Control Technology, the parts machining of many products is all machined by Digit Control Machine Tool, one on lathe As need installs fixture come clamping channel-shaped workpiece or guiding cutter, its effect is to position workpiece so that channel-shaped workpiece acquisition phase For lathe and the correct position of cutter, and channel-shaped workpiece is reliably clamped.In the processing of channel-shaped workpiece, channel-shaped workpiece one As be that clamping is carried out using the double fixed clamp fixture of the right and left cylinder, when channel-shaped workpiece is processed, be only subject to the radial direction of Y-direction Chucking power, channel-shaped workpiece is susceptible to play in the axial direction of Z-direction, affects the precision of processing.Further, since the clamping of channel-shaped workpiece Contact surface is little, if increasing radial direction chucking power, channel-shaped workpiece is by it is possible that crushing problem, makes the processing of channel-shaped workpiece not smart Close, its product qualified rate is not also high.
The content of the invention
For drawbacks described above, it is an object of the invention to propose a kind of High efficient clamp for being exclusively used in channel-shaped workpiece.
It is that, up to this purpose, the present invention is employed the following technical solutions:
A kind of High efficient clamp for being exclusively used in channel-shaped workpiece;Including the base and clamp assemblies;The clamp assemblies include Connecting plate, fixing axle, clamping plate, positioning briquetting, fishbolt and push-tight cylinder;Described in two connecting plates are set in parallel in Base, two fixing axles are set in parallel between two connecting plates, and the position between fixing axle and connecting plate is closed It is to be mutually perpendicular to;The two ends of the clamping plate are slidably serially connected in respectively in two fixing axles, and some clamping plates are arranged Between two connecting plates;
The clamping plate is the tabular with leading flank, trailing flank, left surface, right flank, upper side and downside composition Structure, the leading flank and trailing flank are respectively equipped with groove, and the groove is the end face of the leading flank and trailing flank along vertical In the direction of the end face, the inner recess to the clamping plate is formed, and the groove prolongs along the length direction of the clamping plate Stretch;
The positioning briquetting is the L-shaped structure being made of one piece by lateral blocks and vertical block two parts, the horizontal stroke The upper side and left surface, right flank are installed on to block to cross the corner to be formed, vertical block is fitted in the clamping plate Corresponding left surface or right flank, fishbolt through the vertical block by the positioning briquetting be fixed on corresponding left surface or Right flank;The push-tight cylinder promotes in the direction of some clamping plates connecting plate thereto, by all clamping plates folder Tightly.
Further, be provided with fastening spring, the fastening spring be sleeved on after the fishbolt sequentially pass through again it is described Channel-shaped workpiece is fixed behind the side of positioning briquetting and clamping plate.
Further, the lateral blocks are made up of two side pawls, the side pawl by described vertical plate one end edge Yan Shui Formed square to after extension, the lateral blocks in horizontal direction are U-shape structure.
Further, back-moving spring is provided between the clamping plate and clamping plate, the back-moving spring is serially connected in described solid Dead axle.
Further, located at the outside of the connecting plate, the expansion link of push-tight cylinder passes through the company to the push-tight cylinder The connection through hole of fishplate bar is fixedly connected into after connecting plate inner side with nearest clamping plate.
Further, two connecting plates are connected by connecting bolt, and the connecting bolt is penetrated from the outside of connecting plate, and Fixed by nut from being provided with after the connecting plate of the push-tight cylinder is passed.
Further, the clamp assemblies are fixed on the base by rotary cylinder, when fixed, the rotary cylinder The upper surface of levelling block and the connecting plate is extruded, the length of the base according to can arrange simultaneously two groups or two groups with The specification of upper clamp assemblies is arranged.
Further, the base is provided with through hole, and the through hole is arranged on the lower section of the clamp assemblies.
Beneficial effects of the present invention:The front and back sides of clamping plate limit motion of the channel-shaped workpiece in fore-and-aft direction;Positioning Briquetting and fishbolt limit motion of the channel-shaped workpiece in vertical direction, finally by push-tight cylinder by connecting plate push-tight to Rise, limit connecting plate and carry motion of the channel-shaped workpiece in left and right directions.
Description of the drawings
Fig. 1 is the structural representation of one embodiment of the present of invention;
Fig. 2 is the partial enlarged drawing of part A in Fig. 1;
Fig. 3 is the structural representation of channel-shaped workpiece and clamping plate the first mounting means in the present invention;
Fig. 4 is the structural representation of channel-shaped workpiece and second mounting means of clamping plate in the present invention;
Fig. 5 is the partial enlarged drawing of part B in Fig. 3;
Fig. 6 is the top view of one embodiment of the present of invention.
Wherein:Base 1;
Connecting plate 201, fixing axle 202;Clamping plate 203, leading flank 2031, right flank 2032, upper side 2033, groove 2034;Positioning briquetting 204, lateral blocks 2041, vertical block 2042;Fishbolt 205, push-tight cylinder 206, connecting bolt 207;
Channel-shaped workpiece 3, fastening spring 4, side pawl 5, rotary cylinder 7, bearing block 8, through hole 9.
Specific embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by specific embodiment.
As shown in Figure 1, Figure 2 and shown in Fig. 6, a kind of High efficient clamp for being exclusively used in channel-shaped workpiece;
Including the base 1 and clamp assemblies,
The clamp assemblies include connecting plate 201, fixing axle 202, clamping plate 203, positioning briquetting 204, fishbolt 205 With push-tight cylinder 206;Two connecting plates 201 are set in parallel in the base 1, and two fixing axles 202 be arranged in parallel Between two connecting plates 201, and the position relationship between fixing axle 202 and connecting plate 201 is to be mutually perpendicular to;The dress The two ends of clamping plate 203 are slidably serially connected in respectively in two fixing axles 202, and some clamping plates 203 are arranged on two connections Between plate 201;
The clamping plate 203 be with leading flank 2031, trailing flank, left surface, right flank 2032, upper side 2033 and under The platy structure of side composition, the leading flank 2031 and trailing flank are respectively equipped with groove 2034, and the groove 2034 is described Along perpendicular to the direction of the end face, the inner recess to the clamping plate 203 is formed the end face of leading flank 2031 and trailing flank, and The groove 2034 extends along the length direction of the clamping plate 203;
The positioning briquetting 204 is the L-shaped being made of one piece by lateral blocks 2041 and the two parts of vertical block 2042 Structure, the lateral blocks 2041 are installed on the upper side 2033 and left surface, right flank 2032 and cross the corner to be formed, and erect Straight block 2042 is fitted in the corresponding left surface or right flank 2032 of the clamping plate 203, and fishbolt 205 passes through described vertical The positioning briquetting 204 is fixed on corresponding left surface or right flank 2032 by block 2042;The push-tight cylinder 206 is by some dresses The direction of the connecting plate 201 thereto of clamping plate 203 promotes, and all clamping plates 203 are clamped.
In the technical program, channel-shaped workpiece 3 has two kinds of different installation way on the clamping plate 203:
The first installation way:As shown in Figures 2 and 3, channel-shaped workpiece 3 can simultaneously upper side of the clamping in clamping plate 203 2033 and downside, illustrate in case of clamping is in upper side 2033, channel-shaped workpiece 3 is directly tipped upside down on into clamping plate On 203, the interior concave bottom surface of channel-shaped workpiece 3 is set to contact with the upper side 2033 of clamping plate 203, two vertical inner walls of channel-shaped workpiece 3 Contact with leading flank 2031 and trailing flank respectively and be adjacent to;Again the left and right sides of channel-shaped workpiece 3 is clamped with positioning briquetting 204, it is fixed The lateral blocks 2041 of position briquetting 204 are adjacent to the outer bottom of the channel-shaped workpiece 3 of back-off, vertical block 2042 and corresponding left surface or The contact of right flank 2032 is adjacent to, and the positioning briquetting 204 of L-shaped is installed on the upper side 2033 and hands over left surface or right flank 2032 The corner that remittance is formed, then fishbolt 205 is fixed on the positioning briquetting 204 accordingly through the vertical block 2042 Left surface or right flank 2032;The front and back sides of clamping plate 203 limit motion of the channel-shaped workpiece 3 in fore-and-aft direction;It is fixed Position briquetting 204 and fishbolt 205 limit motion of the channel-shaped workpiece 3 in vertical direction, will even finally by push-tight cylinder 206 The push-tight of fishplate bar 203 carries motion of the channel-shaped workpiece 3 in left and right directions to connecting plate 203 together, is limited.
Second installation way:As shown in Figures 4 and 5, channel-shaped workpiece 3 can simultaneously upper side of the clamping in clamping plate 203 2033 and downside, illustrate second installation way in case of clamping is in upper side 2033 --- two channel-shaped works Part 3 can be while clamping both sides (illustrating in case of clamping is in leading flank 2031) before and after clamping plate 203, first will Channel-shaped workpiece 3 lies down placement so that the interior concave bottom surface of channel-shaped workpiece 3 is right against leading flank 2031, then being in channel-shaped workpiece 3 The trough rim of lower section is inserted in the groove 2034, shape that the trough rim in top is installed on upper side 2033 and leading flank 2031 crosses Into corner, the channel-shaped workpiece 3 on trailing flank is according to same way clamping;Then positioning briquetting 204 is used again by channel-shaped workpiece 3 The left and right sides clamp, the lateral blocks 2041 of positioning briquetting 204 are adjacent to the trough rim in top of channel-shaped workpiece 3, vertical block 2042 are adjacent to corresponding left surface or the contact of right flank 2032, the positioning briquetting 204 of L-shaped be installed on the upper side 2033 with Left surface or right flank 2032 cross the corner to be formed, then will be described fixed through the vertical block 2042 fishbolt 205 Position briquetting 204 is fixed on corresponding left surface or right flank 2032;The front and back sides of clamping plate 203 limit channel-shaped workpiece 3 fore-and-aft direction motion;Positioning briquetting 204 and fishbolt 205 limit motion of the channel-shaped workpiece 3 in vertical direction, most Afterwards the push-tight of connecting plate 203 is carried in left and right directions by channel-shaped workpiece 3 to connecting plate 203 together, is limited by push-tight cylinder 206 Motion;Such installation way is used to be used when processing the trough rim of channel-shaped workpiece, while clamping 4 on a packaged clamping plate 203 Workpiece, substantially increases the efficiency and working (machining) efficiency of clamping.
Fastening spring 4 is provided with, the fastening spring 4 is sleeved on after the fishbolt 205 and sequentially passes through the positioning again Channel-shaped workpiece 3 is fixed behind the side of briquetting 204 and clamping plate 203.Fishbolt 205 passes through positioning briquetting 204, clamping plate Behind 203 side, fastening spring 207 is compressed between the lid of positioning briquetting 204 and fishbolt 205, and spring is compressed Clamping force that the restoring force that backward its two ends produce is enhanced between positioning briquetting 204 and clamping plate 203, it is ensured that clamping is stablized Property.
The lateral blocks 2041 are made up of two side pawls 5, the side pawl 5 by the one end of the vertical plate 2042 edge Yan Shui Formed square to after extension, the lateral blocks 2041 in horizontal direction are U-shape structure.
Replace the structure of entire plate with two side pawls 5, reduce the contact area of lateral blocks 2041 and channel-shaped workpiece 3, In the case that power is suitable, pressure is increased, while avoiding damage of the power to the surface of channel-shaped workpiece 3 during clamping.
Back-moving spring is provided between the clamping plate 203 and clamping plate 203, the back-moving spring is serially connected in the fixing axle 202.When clamping plate 203 is clamped, clamping plate 203 extrudes back-moving spring therebetween with clamping plate 203, and the back-moving spring for being compressed is Recover the restoring force produced by deformation to act on the clamping plate 203 of its both sides, improve stablizing when clamping plate 203 is clamped Property;On the other hand, when channel-shaped workpiece 3 needs unloading after machining, after the expansion link retraction of push-tight cylinder 206, clamping plate 203 Flicked under the restoring force effect of back-moving spring so that have gap to coordinate between each clamping plate 203.
The push-tight cylinder 206 passes through the company located at the outside of the connecting plate 201, the expansion link of push-tight cylinder 206 The connection through hole of fishplate bar 201 is fixedly connected into after the inner side of connecting plate 201 with nearest clamping plate 203.Propulsion cylinder 206 is set Put in the outside of connecting plate 201, be easily installed, and more fully make use of the inner space of connecting plate 201 for arranging clamping plate 203。
Two connecting plates 201 are connected by connecting bolt 207, and the connecting bolt 207 is worn from the outside of connecting plate 201 Enter, and fixed by nut from being provided with after the connecting plate 201 of the push-tight cylinder 206 is passed.
Push-tight cylinder 206 promotes all clamping plates 203 to the connecting plate 201 of offside, and all clamping plates 203 are clamped, This connecting plate 201 is also subject to the motive force from connecting plate 201, in the technical program, by bolt from this end insertion, prevents final Fixed nut loosens or comes off in the presence of above-mentioned motive force, it is ensured that the use of fixture.
The clamp assemblies are fixed on the base 1 by rotary cylinder 7, when fixed, the level pressure of the rotary cylinder 7 The upper surface of block and the connecting plate 201 is extruded, and the length of the base 1 is according to can simultaneously arrange two groups and above clamping The specification of component is arranged.By the fixed clamp component of rotary cylinder 7, motion of the clamp assemblies in vertical direction is limited, clamping is steady It is fixed;Directly base 1 is put on lathe again workpiece is processed, convenient operation.
When the clamp assemblies are arranged on the base 1, the connecting bolt 207 in inner side is arranged on by bearing block 8 The base 1, the rotary cylinder 7 is arranged on the offside of the bearing block 8.
One group of clamp assemblies is arranged on base 1, and channel-shaped workpiece 3 is separately fixed at into the upper and lower side of clamping plate 203, processing When, first will machine in conplane channel-shaped workpiece 3, then rotary cylinder 7 is unclamped, whole clamp assemblies are lifted, So that bearing of the connecting bolt 207 in bearing block 8 is rotated after 180 degree, before in the unprocessed channel-shaped of lower flat The displacement of workpiece 3 can proceed processing to upper plane, and the workpiece for processing is in lower flat.
The base 1 is provided with through hole 9, and the through hole 9 is arranged on the lower section of the clamp assemblies.The useless of processing generation cuts useless Slag is fallen on row's turning device of lathe by through hole 9, easy cleaning.
The know-why of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explain the present invention's Principle, and can not by any way be construed to limiting the scope of the invention.Based on explanation herein, the technology of this area Personnel associate other specific embodiments of the present invention by need not paying performing creative labour, these modes fall within Within protection scope of the present invention.

Claims (9)

1. a kind of High efficient clamp for being exclusively used in channel-shaped workpiece, it is characterised in that:
Including the base and clamp assemblies;
The clamp assemblies include connecting plate, fixing axle, clamping plate, positioning briquetting, fishbolt and push-tight cylinder;Described in two Connecting plate is set in parallel in the base, and two fixing axles are set in parallel between two connecting plates, and fixing axle Position relationship between connecting plate is to be mutually perpendicular to;The two ends of the clamping plate are slidably serially connected in respectively two fixing axles On, some clamping plates are arranged between two connecting plates;
The clamping plate is the platy structure with leading flank, trailing flank, left surface, right flank, upper side and downside composition, The leading flank and trailing flank are respectively equipped with groove, and the groove is the end face of the leading flank and trailing flank along perpendicular to the end The direction in face, the inner recess to the clamping plate is formed, and the groove extends along the length direction of the clamping plate;
The positioning briquetting is the L-shaped structure being made of one piece by lateral blocks and vertical block two parts, the lateral blocks clamp Cross the corner to be formed in the upper side and left surface, right flank, vertical block is fitted in a corresponding left side for the clamping plate The positioning briquetting is fixed on corresponding left surface or right flank by side or right flank, fishbolt through the vertical block; The push-tight cylinder promotes in the direction of some clamping plates connecting plate thereto, by all clamping board clampings.
2. a kind of High efficient clamp for being exclusively used in channel-shaped workpiece according to claim 1, it is characterised in that:It is provided with clamping bullet Spring, the fastening spring is sleeved on groove after the fishbolt behind the side for sequentially passing through the positioning briquetting and clamping plate again Shape workpiece is fixed.
3. a kind of High efficient clamp for being exclusively used in channel-shaped workpiece according to claim 1, it is characterised in that:The lateral blocks by Two side pawls compositions, the side pawl by described vertical plate one end edge it is horizontally extending after formed, in horizontal direction The lateral blocks are U-shape structure.
4. a kind of High efficient clamp for being exclusively used in channel-shaped workpiece according to claim 1, it is characterised in that:The clamping plate with Back-moving spring is provided between clamping plate, the back-moving spring is serially connected in the fixing axle.
5. a kind of High efficient clamp for being exclusively used in channel-shaped workpiece according to claim 1, it is characterised in that:The push-tight cylinder Located at the outside of the connecting plate, the expansion link of push-tight cylinder is entered behind connecting plate inner side through the connection through hole of the connecting plate It is fixedly connected with nearest clamping plate.
6. a kind of High efficient clamp for being exclusively used in channel-shaped workpiece according to claim 5, it is characterised in that:Two connecting plates lead to Connecting bolt connection is crossed, the connecting bolt penetrates from the outside of connecting plate, and from being provided with the connecting plate of the push-tight cylinder Fixed by nut after passing.
7. a kind of High efficient clamp for being exclusively used in channel-shaped workpiece according to claim 6, it is characterised in that:The clamp assemblies The base is fixed on by rotary cylinder, when fixed, the upper surface of the levelling block of the rotary cylinder and the connecting plate Contact squeeze, the length of the base is arranged according to the specification that can simultaneously arrange two groups or more clamp assemblies.
8. a kind of High efficient clamp for being exclusively used in channel-shaped workpiece according to claim 1 or 7, it is characterised in that:The base Through hole is provided with, the through hole is arranged on the lower section of the clamp assemblies.
9. using a kind of lathe of the High efficient clamp for being exclusively used in channel-shaped workpiece as described in claim 1-8 any one.
CN201510420408.9A 2015-07-16 2015-07-16 Efficient clamp special for groove-shaped workpieces Active CN105014443B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510420408.9A CN105014443B (en) 2015-07-16 2015-07-16 Efficient clamp special for groove-shaped workpieces

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CN105014443B true CN105014443B (en) 2017-05-10

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Publication number Priority date Publication date Assignee Title
CN106514372A (en) * 2016-11-28 2017-03-22 桐乡市石门仪表机械厂 Processing fixture for dog bone-shaped wrench
CN108237480B (en) * 2017-12-11 2019-07-05 歌尔股份有限公司 Sandblasting operation chamber
CN111167658A (en) * 2020-02-19 2020-05-19 浙江百岸科技有限公司 Clamping equipment and side coating equipment of nitrogen oxygen sensor chip

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JP2000094346A (en) * 1998-09-18 2000-04-04 Japan Nuclear Fuel Co Ltd<Jnf> Metallic plate material holding device for analyzing sample cut-off device
KR200444640Y1 (en) * 2007-12-14 2009-05-26 서울산업대학교 산학협력단 An automation multi jig vise
KR20090006355U (en) * 2007-12-21 2009-06-25 현대제철 주식회사 Apparatus for Clamping The Works for Machinetool
CN201792228U (en) * 2010-09-09 2011-04-13 莱州市莱索制品有限公司 Special fixture of milling machine
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Address after: Block 1 and block 3, No. 9, Lexin Avenue, Leping Town, Sanshui District, Foshan City, Guangdong Province

Patentee after: Guangdong Pradi Technology Co., Ltd

Address before: 528137 No. 70, C District, Sanshui Central Industrial Park, Guangdong, Foshan

Patentee before: FOSHAN PRATIC CNC SCIENCE & TECHNOLOGY Co.,Ltd.

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