WO2023109146A1 - Outil de serrage - Google Patents

Outil de serrage Download PDF

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Publication number
WO2023109146A1
WO2023109146A1 PCT/CN2022/109383 CN2022109383W WO2023109146A1 WO 2023109146 A1 WO2023109146 A1 WO 2023109146A1 CN 2022109383 W CN2022109383 W CN 2022109383W WO 2023109146 A1 WO2023109146 A1 WO 2023109146A1
Authority
WO
WIPO (PCT)
Prior art keywords
clamping
movable
handle
ratchet
clamping tool
Prior art date
Application number
PCT/CN2022/109383
Other languages
English (en)
Chinese (zh)
Inventor
刘少江
闵航
肖兆孟
Original Assignee
上海西美工具进出口有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 上海西美工具进出口有限公司 filed Critical 上海西美工具进出口有限公司
Publication of WO2023109146A1 publication Critical patent/WO2023109146A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/02—Clamps with sliding jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/16—Details, e.g. jaws, jaw attachments
    • B25B5/163—Jaws or jaw attachments

Definitions

  • the invention relates to a clamping fixture, in particular to a clamping tool type clamp.
  • F-shaped clamp is a commonly used manual clamping tool.
  • the clamping tool of this structure wants to clamp an object, the fixed clamp body and the movable clamp head are moved closer to the object and contacted by sliding the movable clamp body. On the object, and then maintain a suitable clamping position to realize the clamping function of the object.
  • the clamping handle is provided with a cam portion, and the operation of the clamping handle causes the cam portion to squeeze the movable collet to achieve clamping or the cam portion to leave the The movable collet can be loosened.
  • the cam part When the cam is held against the movable collet, the cam part will have a horizontal displacement due to the shape of the cam part and its movement track.
  • the shaking of the chuck in the left and right directions, and the horizontal displacement of the movable chuck on the other hand are not conducive to protecting the surface integrity of the clamped object.
  • the cam portion of the clamping handle is an irregular cam line, which has low molding precision and precision in the die-casting process.
  • the purpose of the present invention is to provide a clamping tool to solve the problem that the clamping handle shakes left and right during the operation of the movable chuck, and to improve the stability of the clamping tool during the process of clamping objects.
  • a clamping tool including a slide bar, a fixed clip body fixed to the slide bar, a movable clip body slidingly sleeved on the slide bar, and the clamping tool also It includes a movable chuck that is slidably arranged on the movable chuck body and a clamping handle that is rotated and fixedly arranged on the movable chuck body.
  • One side of the movable chuck is provided with a rack with a plurality of teeth distributed along a straight line
  • the side of the clamping handle facing the slide bar is provided with a gear portion having a number of teeth distributed along a circular trajectory and intermeshing with the rack, and the clamping handle is operated to make it relatively to the movable clamping body Rotate and drive the gear part to mesh with the rack, so that the movable chuck moves linearly in the direction of approaching or away from the fixed clamp body relative to the movable clamp body along the linear direction.
  • the movable chuck is provided with a pair of side ears respectively located on both sides of the movable clamp body, each of the side ears is provided with the rack, and the clamping handle includes A pair of side plate parts on the side, the gear part is positioned and fixed on each side plate part, and a pair of the gear parts are arranged symmetrically on both sides of the movable clip body, and the gear part and the corresponding The rack meshes.
  • each of the side ears is provided with a movable hole
  • the movable clip body is also provided with a guide pin corresponding to the movable hole, and the guide pin is sleeved in the movable hole and the two are mutually aligned along the linear direction Slip fit.
  • the movable hole is arranged in an elliptical shape along the straight line direction, and there is one set, and the guide pins are set as a pair or one in the straight line direction.
  • the clamping handle also includes a reinforcing member that passes through the side plate portion and the movable clamping body to rotate and fix the clamping handle to the movable clamping body, and the gear portion is fixedly arranged on the movable clamping body. Both sides of the pair of side plate parts of the handle are clamped, and the outer end of the reinforcing member is rotatably fixed to the gear part.
  • the reinforcing member is a pin
  • the movable clip body, the side plate part and the gear part are provided with fixing holes corresponding to the reinforcing member.
  • the side plate portion of the clamping handle is provided with a buckle hole
  • the gear portion extends toward the side plate portion to form a clamping block
  • the clamping block is clamped in the buckle hole
  • a ratchet is provided on the movable folder, a pawl engaged with the ratchet is provided on the clamping handle, and a release handle is provided on one side of the pawl, and the clamping handle is rotated to operate,
  • the clamping handle drives the pawl to rotate in one direction and is locked with the ratchet in one direction, and the release handle is operated to release the pawl and the ratchet to lock in one direction.
  • the ratchet is rotatably fixed between a pair of side plates, the ratchet has ratchet teeth distributed in arc-shaped tracks, and the clamping handle is rotated to drive the ratchet to rotate relative to the ratchet, Furthermore, the pawl engages with the ratchet teeth distributed in an arc-shaped trajectory and is locked in one direction.
  • the clamping handle is provided with a main body for manual operation, the side plate extending from the side of the main body to one side, and a bottom support plate, and the bottom support plate is connected to the two side plates
  • the pawl is accommodated in the accommodating space, and the pawl includes a fixed connection with
  • the movable chuck and the teeth of the gear part are both circular teeth.
  • collet and the gear part are formed by stamping, and the teeth of the rack and the gear part are formed by stamping into a circle.
  • the clamping tool in the present invention through the gear that is arranged on the clamping handle and moves along the circular track and the tooth rack that is arranged on the movable chuck along a straight line, the two mesh to make the movable chuck Linear motion in the above linear direction, so as to realize the function of the movable chuck and the fixed chuck to clamp the object, and the two do not shake in the left and right directions during the clamping process.
  • Fig. 1 is a schematic perspective view of a clamping tool in the state of clamping an object in the first embodiment of the present invention.
  • Fig. 2 is a view of Fig. 1 viewed from another direction.
  • Fig. 3 is an exploded perspective view of the clamping tool in the state of clamping an object in the first embodiment of the present invention.
  • Fig. 4 is a view of Fig. 3 viewed from another direction.
  • Fig. 5 is an exploded perspective view of a relaxed object in the first embodiment of the present invention.
  • Fig. 6 is a schematic perspective view of the clamping tool in the state of clamping an object in the second embodiment of the present invention.
  • Fig. 7 is an exploded perspective view of the clamping tool in the state of clamping an object in the second embodiment of the present invention. Explanation of main component symbols
  • clamping tool 100/100' slide bar 1, fixed clamp body 2, spacer 20, fixed pin 21, movable clamp body 3, movable chuck 31/31', side ear 32, movable Hole 321/321', Rack 322, Collet Positioning Hole 30, Guide Pin 33/33', Center Fixing Hole 34, Ratchet Positioning Hole 35, Clamping Handle 4, Main Body 41, Side Plate 42, First Positioning Hole 421, second positioning hole 422, buckle hole 423, bottom support plate 43, accommodation space 40, reinforcement 44, ratchet 5, alignment hole 51, pawl 6, through hole 61, fixed shaft 62, release handle 7 , spring hole 71, gear part 8, tooth 81, holding hole 82, clamping block 83
  • the clamping handle is provided with a cam portion, and the clamping handle is operated to make the cam portion squeeze the movable collet to achieve clamping or make the cam portion leave the
  • the movable chuck can be loosened. Due to the shape of the cam and its movement track, the cam will have a horizontal displacement, and it will be pressed against the movable chuck. On the one hand, it will cause the cam to shake in the left and right directions, and on the other hand, It is beneficial to protect the surface integrity of the clamped object.
  • the cam part of the clamping handle is an irregular cam line, and the molding precision is low in terms of die-casting technology.
  • FIG. 1 to FIG. 4 are schematic diagrams when the clamping tool 100 is clamping an object
  • FIG. 5 is a diagram when the clamping tool is loosening an object.
  • the clamping tool 100 includes a slide bar 1 , a fixed clip body 2 fixed on the slide bar 1 , and a movable clip body 3 slidably sleeved on the slide bar 1 .
  • the fixed clamp body 2 and the movable clamp body 3 extend to the same side of the slide bar 1 so that the entire clamping tool 100 is in the shape of the letter "F", so it is called an F-shaped clamp.
  • the fixed clamp body 2 and the movable chuck 31 are moved closer to the object and contacted on the object by sliding the movable clamp body 3, and then the clamping handle 4 is operated to make the movable chuck 31 continue
  • the clamping function of the object can be realized by clamping the object toward the fixed clamp body 2.
  • the movable clamp body 3 is provided with a movable clamp head 31 and a clamping handle 4 arranged on the movable clamp body 3.
  • One side of the movable chuck 31 is provided with a rack 322 with several teeth distributed along a straight line, and the side of the clamping handle 4 facing the slide bar 1 is provided with a gear meshing with the rack 322 along an arc track Part 8, the gear part 8 is provided with a tooth 81 meshing with the rack 322, and the tooth profile of the tooth 81 is an arc-shaped track.
  • the teeth 81 of the gear part 8 mesh with the rack 322 along a circular track so that the movable chuck 31 moves linearly in a straight line to make the movable chuck 31 approach the fixed chuck body 2, and then Realize object clamping.
  • the fixed clip body 2 and the slide bar 1 are connected and fixed by a fixed pin 21, and the side of the fixed clip body 2 facing the movable chuck 31 is provided with a pad 20, and the pad 20 is used for To protect the surface of the object to be clamped and prevent the surface of the object from being scratched.
  • pads may also be provided on the movable chuck 31 described below to protect the surface of the clamped object, which is not limited here.
  • the movable chuck 31 is provided with a pair of side ears 32 located on radially two sides of the movable chuck body 3 , and each of the pair of side ears 32 is provided with a movable hole 321 and the rack 322 .
  • the movable hole 321 is arranged in an ellipse along the straight line.
  • the movable chuck 31 is also provided with a central fixing hole 34 .
  • the rack 322 is disposed on a side of the side ear 32 close to the gear portion 8 .
  • the movable clamp body 3 also includes a clamp positioning hole 30, a guide pin 33 fixed to the clamp positioning hole 30, a central fixing hole 34 located outside the clamp positioning hole 30 and close to the clamping handle 4 And a pair of ratchet positioning holes 35 separately arranged below the central fixing hole 34 .
  • the movable hole 321 is sleeved on the guide pin 33 and the guide pin 33 can slide relative to the movable hole 321 in a straight line.
  • the linear guide of the movable chuck 31 relative to the movable chuck body 3 can also adopt other sliding methods, such as a rectangular slider and a rectangular chute, a hook and a slot or a ball and a Sliding fit methods such as ball guide rails.
  • the movable chuck 31 realizes the floating in the vertical direction through the mutual guiding effect of the movable hole 321 and the positioning pin 33 .
  • one movable hole 321 is provided, and a pair of guide pins 33 are provided in the linear direction, but the present invention is not limited thereto.
  • the collet positioning hole 30 is set as a pair arranged in the linear direction, and a pair of guide pins 33 can ensure that the movable hole 321 will not rotate relative to the guide pins 33, and then the movable collet 31 can slide in the linear direction without causing left and right Shake in direction.
  • the guide pins 33 are arranged as a pair along the straight line
  • the guide pins of the clamping tool 100' 33' is arranged as one along the straight line direction, and the diameter of the two ends of the guide pin 33' is larger than the diameter of the middle part, so as to avoid the fall of the movable chuck 31', and the parts at both ends of the guide pin 33'
  • the outer buckle is on the outside of the movable hole 321 ′, so that the fixing effect of the two is strengthened.
  • the clamping handle 4 includes a main body portion 41 for manual operation, a pair of side plate portions 42 and a bottom support plate side plate portion 43 extending from the side of the main body portion 41 to one side at intervals.
  • the main body portion 41 , the side plate portion 42 and the bottom support plate 43 enclose the receiving space 40 .
  • the pair of side plate portions 42 are clamped on both sides of the movable clamp body 3, and the side plate portion 42 has a thickness reinforcement area (not labeled) located on both sides of the movable clamp body, which can strengthen the side plate portion 42. strength.
  • the reinforcing member 44 is a pin, and the movable clamp body 31 , the side plate portion 42 and the gear portion 81 define fixing holes corresponding to the reinforcing member 44 , and the three are pivotally and fixedly connected relative to the reinforcing member 44 .
  • Each of the side plate parts 42 also includes a first positioning hole 421 on the side close to the movable chuck 31 , and a second positioning hole located outside the first positioning hole 421 on the side away from the movable chuck 31 422 and the fastening hole 423 located between the first positioning hole 421 and the second positioning hole 422 .
  • the clamping handle 4 also includes the first positioning hole 421 passing through the pair of side plate parts 42 and the central fixing hole 34 of the movable clamping body 3 to fix the clamping handle 4 and the The reinforcement 44 of the movable clip body 3 is described.
  • the fixing hole on the movable chuck 31 is the central fixing hole 34
  • the fixing hole on the side plate part 42 is the first positioning hole 421
  • the fixing hole on the gear part 81 is the first positioning hole 421.
  • the hole is the holding hole 82 described below.
  • the movable clip body 3 is provided with a ratchet 5 with arc-shaped distribution of ratchet teeth
  • the clamping handle 4 is provided with a pawl 6 which engages with the ratchet 5, and one side of the pawl 6 is also provided with Release handle 7, operate the release handle 7, make the pawl 6 disengage from the ratchet 5, and then allow the user to rotate the clamping handle 4, so that the tooth 81 aligns with the rack along a circular track 322 is engaged and reversely rotated at the same time, so that the movable clamp 31 is far away from the fixed clamp body 2 .
  • the ratchet positioning hole 35 is also provided on the movable clamp body 3, and the ratchet wheel 5 has an alignment hole 51 opposite to the ratchet positioning hole 35.
  • the ratchet wheel 5 is positioned on the movable clamp body 3 and
  • the ratchet 6 is rotatably connected between the pair of side plate portions 42 through a pin (not shown) passing through and fixed in the ratchet positioning hole 35 and the alignment hole 51 .
  • the pawl 6 is located in the accommodating space 40, and the pawl 6 includes the release handle 7 fixedly connected to the outside of the pawl 6, a through hole 61 located inside the pawl 6, and a hole 61 passing through the pawl 6.
  • the through hole 61 and the second positioning hole 422 are used to fix the clamping handle 4 and the fixed shaft 62 of the ratchet 6, and the ratchet 6 can rotate relative to the fixed shaft 62, and then can be connected to the fixed shaft 62 with an arc.
  • the ratchet 5 unidirectional locking of shape distribution ratchet.
  • the release handle 7 is elastically pressed by a spring member under normal conditions, and then can be stably pressed against the accommodating space 40 at a fixed position and exposed outside the clamping handle 4 for manual operation.
  • the release handle 7 is provided with a spring hole 71, the spring hole 71 accommodates an external spring (not shown) and fixes one end of the spring, and the other end of the spring (not shown) is held against the
  • the bottom supporting plate 43 is installed so that the release handle 7 is exposed to the receiving space 40 under normal conditions.
  • pressing the release handle 7 can release the one-way locking of the pawl 6 and the ratchet 5, and then the locking of the rotational position of the clamping handle 4 can be released, which is convenient
  • the clamping handle 4 can be reversely rotated, and the release handle 7 is released, and the ratchet 6 and the ratchet 5 resume the one-way locking function.
  • the side of the main body 41 of the clamping handle 4 that is operated by human hands is arranged in a wavy sawtooth shape, which is convenient for human hands to grasp.
  • the gear part 8 is fixedly arranged on both sides of the pair of side plate parts 42 of the clamping handle 4, and the clamping tool 100 includes a pair of the gear parts 8, a pair of the gear parts 8 It is arranged symmetrically on both sides of the movable clip body 3 .
  • the gear part 8 has the tooth 81 meshing with the rack 322, the holding hole 82 communicating with the central fixing hole 34 and the first positioning hole 421, and the reinforcing member 44 passes through the center
  • the fixing hole 34, the first positioning hole 421 and the holding hole 82 are used to position the movable clip body 3, the clamping handle 4 and the gear part 8, that is, in this embodiment, specifically, the reinforcement
  • the outer end of the member 44 is rotatably fixed to the gear part 8 .
  • the gear part 8 also includes a clamping block 83 protruding radially outside the holding hole 82.
  • the gear part 8 is provided as a pair, that is, a pair of the clamping blocks 83 Located opposite to each other, the locking block 83 is locked in the locking hole 423 for fixing the gear part 8 and the clamping handle 4 .
  • FIG. 5 When the clamping tool 100 has not clamped an object, its state is shown in FIG. 5 .
  • FIGS. 1 to 4 When the clamping tool 100 has clamped an object, its state is shown in FIGS. 1 to 4 .
  • the clamping tool 100 clamps an object the main body 41 of the clamping handle 4 is operated, and the pawl 6 fixed to the clamping handle 4 through the fixed shaft 62 starts to engage with The ratchet 5 is engaged, and at the same time, through the reinforcing member 44, the fixing hole 82 and the first positioning hole 421 and the clamping block 83 are clamped in the buckling hole 423 and fixed on the clamping handle 4
  • the gear part 8 starts to mesh with the rack 322.
  • the process of engagement is such that since the clamping handle 4 is rotated toward the slide bar 1, the pawl 6 engages from top to bottom along the outer side of the ratchet 5 and reaches the inner end of the ratchet 5, while The teeth 81 of the gear part 8 mesh with the rack 322 along a circular trajectory, and then drive the movable chuck 31 with the rack 322 to move from bottom to top in the vertical direction to approach the rack 322 . Fix the clip body 2 so as to keep it in a proper position to hold the object.
  • the clamping handle 4 When the object needs to be released, by operating the release handle 7, the clamping handle 4 is dialed back from bottom to top, so that the pawl 6 returns to the outer end of the ratchet 5, and at the same time, the clamping handle 4 is operated away from
  • the slide bar 1 rotates in one direction and drives the teeth 81 of the gear part 8 to mesh with the rack 322 along a circular track from bottom to top.
  • the movable clamp 31 moves from top to bottom to keep away from the fixed clamp body 2, so as to release the object.
  • the tooth 81 meshes with the rack 322 along a circular track, thereby driving the movable clamp 31 to move linearly in the vertical direction
  • the movable clamp Both sides of the body 3 have the above-mentioned tooth 81 and the rack 322 structure, the meshing structure is stable, and the movable chuck 31 moves linearly in the vertical direction, and there is no clamping and shaking in the left and right directions.
  • the clamping track is straight and the clamping position is stable, which is beneficial to maintaining the integrity of the clamping surface of the clamped object.
  • described tooth bar 322 and described tooth 81 are the circular teeth of customization, it is circular arc track meshing, meshing rotation is smooth, and simultaneously described collet 31 and the circular tooth of described gear part 8 are convenient Formed by stamping, the tooth shape is large, so the forming accuracy is relatively high, and the cost is relatively low.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)

Abstract

Outil de serrage (100) comprenant une barre coulissante (1), un corps de serrage fixe (2) fixé à la barre coulissante, un dispositif de serrage mobile (3) emmanché de manière coulissante sur la barre coulissante, une mâchoire mobile (31) disposée de façon coulissante sur le corps de serrage mobile et une poignée de serrage (4) disposée de manière fixe sur le corps de serrage mobile. Un râtelier (322) est disposé sur le côté de la mâchoire mobile faisant face à la poignée de serrage ; une partie d'engrenage (8) en prise avec la crémaillère le long d'une piste circulaire est disposée sur le côté de la poignée de serrage faisant face à la barre coulissante ; la poignée de serrage est actionnée pour amener la partie d'engrenage à venir en prise avec la crémaillère le long de la piste circulaire de sorte que la mâchoire mobile se déplace linéairement, par rapport au corps de serrage mobile dans une direction linéaire, à proximité ou à l'opposé du corps de serrage fixe. Selon l'outil de serrage, l'engrenage qui est disposé sur la poignée de serrage et se déplace le long de la piste circulaire et la crémaillère disposée sur la mâchoire mobile sont mis en prise pour amener la mâchoire mobile à se déplacer linéairement dans une direction verticale, ce qui permet de mettre en œuvre une fonction de serrage d'objet de la mâchoire mobile et du corps de serrage fixe ; de plus, pendant un processus de serrage, la mâchoire mobile et le corps de serrage fixe ne bougent pas dans une direction gauche-droite.
PCT/CN2022/109383 2021-12-14 2022-08-01 Outil de serrage WO2023109146A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202111532179.1A CN114179000A (zh) 2021-12-14 2021-12-14 夹紧工具
CN202111532179.1 2021-12-14

Publications (1)

Publication Number Publication Date
WO2023109146A1 true WO2023109146A1 (fr) 2023-06-22

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Application Number Title Priority Date Filing Date
PCT/CN2022/109383 WO2023109146A1 (fr) 2021-12-14 2022-08-01 Outil de serrage

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CN (1) CN114179000A (fr)
WO (1) WO2023109146A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114179000A (zh) * 2021-12-14 2022-03-15 上海西美工具进出口有限公司 夹紧工具

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2850824Y (zh) * 2005-10-21 2006-12-27 林千铃 夹具结构改良
CN201030521Y (zh) * 2007-03-31 2008-03-05 任生民 快速固紧的f形工具夹
US20080136077A1 (en) * 2006-12-06 2008-06-12 Ching-Chen Yang Bar clamp with ratchet mechanism and linkage
US7530556B1 (en) * 2008-06-09 2009-05-12 Bo Ren Zheng Bar clamp with arrangement for displacing a clamping jaw a large distance to securely clamp a workpiece
CN103659633A (zh) * 2013-11-29 2014-03-26 成都斯锐特钨钢刀具有限公司 一种夹钳
US20150174737A1 (en) * 2013-12-20 2015-06-25 Chung Li Chen Bar clamp having a ratchet mechanism for fastening a clamped work piece
CN209566035U (zh) * 2019-02-01 2019-11-01 杭州巨星科技股份有限公司 棘轮f夹
CN114179000A (zh) * 2021-12-14 2022-03-15 上海西美工具进出口有限公司 夹紧工具

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2850824Y (zh) * 2005-10-21 2006-12-27 林千铃 夹具结构改良
US20080136077A1 (en) * 2006-12-06 2008-06-12 Ching-Chen Yang Bar clamp with ratchet mechanism and linkage
CN201030521Y (zh) * 2007-03-31 2008-03-05 任生民 快速固紧的f形工具夹
US7530556B1 (en) * 2008-06-09 2009-05-12 Bo Ren Zheng Bar clamp with arrangement for displacing a clamping jaw a large distance to securely clamp a workpiece
CN103659633A (zh) * 2013-11-29 2014-03-26 成都斯锐特钨钢刀具有限公司 一种夹钳
US20150174737A1 (en) * 2013-12-20 2015-06-25 Chung Li Chen Bar clamp having a ratchet mechanism for fastening a clamped work piece
CN209566035U (zh) * 2019-02-01 2019-11-01 杭州巨星科技股份有限公司 棘轮f夹
CN114179000A (zh) * 2021-12-14 2022-03-15 上海西美工具进出口有限公司 夹紧工具

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