CN108971780B - Positioning and fixing device of chip fixture - Google Patents

Positioning and fixing device of chip fixture Download PDF

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Publication number
CN108971780B
CN108971780B CN201811040012.1A CN201811040012A CN108971780B CN 108971780 B CN108971780 B CN 108971780B CN 201811040012 A CN201811040012 A CN 201811040012A CN 108971780 B CN108971780 B CN 108971780B
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China
Prior art keywords
movable
pressing sheet
movable shaft
connector
fixed
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CN201811040012.1A
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CN108971780A (en
Inventor
廖晓玲
徐文峰
张园园
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Chongqing University of Science and Technology
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Chongqing University of Science and Technology
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70Auxiliary operations or equipment
    • B23K26/702Auxiliary equipment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0426Fixtures for other work

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Supports Or Holders For Household Use (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

The invention provides a positioning and fixing device of a chip clamp, which mainly comprises a movable pressing sheet, a fixed pressing sheet and a connector for connecting the movable pressing sheet and the fixed pressing sheet. The method is characterized in that: the movable pressing sheet is a thin cuboid which is horizontally arranged and has a rectangular horizontal surface, a convex edge is processed, and one end of the convex edge extends out and is connected with a movable thread or a movable ring; the fixed pressing sheet is a cuboid which is vertically rectangular and is vertically arranged, and one end of the fixed pressing sheet is provided with a connector which is connected with the movable pressing sheet. A vertical columnar cavity which is communicated up and down is processed in the middle of the connector, and a movable thread or a movable ring can be horizontally placed in the columnar cavity. The movable pressing sheet and the fixed pressing sheet of the fixing device are connected in a right angle way through the connectors, wherein the right angle way is vertical to the horizontal direction. The pointer positioning rod chip clamp has the advantages that the pointer positioning rod chip clamp is matched with a pointer positioning rod chip clamp for use, and the positions of two pointer positioning rods can be fixed after the chips are fixed by the two positioning rods; the fixing device is fast, convenient and easy to operate in fixing and unlocking.

Description

Positioning and fixing device of chip fixture
Technical Field
The invention relates to a fixing device for positioning, in particular to a positioning and fixing device matched with a rod-shaped fixture for determining the position of a machined workpiece.
Technical Field
The current and future of laser engraving machines need to rely on high precision and high stability of equipment hardware to more accurately measure the range of a process machining line and control and adjust the machining process. Therefore, for a laser engraving machine without a clamp, a chip is simply and manually placed, although the operation method is simple and convenient, the requirement of engraving the chip with high precision cannot be met, and a pointer type chip positioning clamp is specially developed for the operation method. The pointer type chip positioning fixture has the technical characteristics that the designed pointer type sample platform is used as an object stage for fixing a chip, and the positioning rods of the transverse pointer and the longitudinal pointer clamp the chip by moving the position of the pointer seat, so that the pointer type chip positioning fixture can be suitable for chips with different shapes, and the fixing position of the chip to be processed is more accurate. The whole clamp is simple and feasible in operation process, can fix the chip and position the chip, and improves the processing efficiency and quality. The fixing device is matched with a pointer type positioning rod chip clamp, and is used for fixing two positioning rods after the positioning rods clamp the chips. The fixing device is required to be fast, convenient and easy to fix, unlock and fix. However, there are currently no suitable such fixtures available.
Therefore, a fixing device for positioning and fixing two pointer positioning rods of a pointer type chip positioning fixture is needed, wherein the fixing device is simple and convenient to operate and can meet the requirement of positioning and fixing the two pointer positioning rods of the pointer type chip positioning fixture.
Disclosure of Invention
The invention mainly aims to provide a fixing device which is simple and convenient to operate and can meet the fixing requirements of two pointer positioning rods of a pointer type chip positioning fixture, and the fixing device solves the problem that the fixing device which meets the processing requirements of the fixture process is lacked in the prior art. In order to achieve the purpose, the invention provides a positioning and fixing device of a chip clamp.
The technical scheme provided by the invention is as follows: a positioning and fixing device of a chip clamp mainly comprises a movable pressing sheet, a fixed pressing sheet and a connector for connecting the movable pressing sheet and the fixed pressing sheet. The method is characterized in that: the movable pressing piece is a thin cuboid, the horizontal surface of the movable pressing piece is rectangular and horizontally arranged, a convex edge penetrating through the middle line of the long edge of the rectangle is machined on the horizontal surface of the movable pressing piece, and one end of the convex edge extends out to be connected with a movable thread or a movable ring vertical to the horizontal movable pressing piece. The effect of bead firstly plays the effect that the activity screw thread or activity ring are connected to the reduction cross-section, secondly can reduce the area of contact with the locating lever, increase contact pressure. The fixing pressing sheet of the fixing device is a cuboid which is vertically rectangular and vertically placed, one end of the fixing pressing sheet is a connector connected with the movable pressing sheet, and the fixing pressing sheet and the connector are integrally processed together. The fastening device of the present invention is a small part, so that fewer parts are easier to process, and the integrity also increases the robustness of the device. The vertical cuboid of the fixed pressing sheet is provided with a connector positioning rod through hole which horizontally penetrates through the fixed pressing sheet. The fixing principle of the invention is that the horizontal cross-shaped longitudinal positioning rod and the horizontal positioning rod on the object stage are not on the same horizontal plane but staggered up and down because of convenient movement. Therefore, a positioning rod is firstly fixed by punching a positioning rod hole, 1 positioning rod is jacked upwards by the convex edge of the movable pressing sheet to be in close contact with the other 1 positioning rods, and the positioning rods are fixed by the self friction force of the 2 positioning rods. A vertical column-shaped cavity which is communicated up and down is processed in the middle of the connector of the fixing device. The radius size of the columnar cavity is matched with the radius size of a movable thread or a movable ring of the movable pressing sheet, and the movable thread or the movable ring can be horizontally placed into the columnar cavity. The movable pressing sheet and the fixed pressing sheet of the fixing device are connected in a right angle mode, wherein the horizontal direction of the right angle is perpendicular to the horizontal direction of the right angle. The design is suitable for fixing the vertical positioning rod and the horizontal positioning rod which are horizontally and vertically crossed. On the outer wall of one side of the connector of the fixing device, which faces the movable pressing sheet, a lifting hole groove penetrating through the outer wall of the connector is processed from the bottom of the columnar cavity. The size of the lifting hole groove is matched with the size of the convex edge of the movable pressing sheet, and the lifting hole groove can enable the convex edge to vertically move up and down in the groove hole. The lifting hole groove is opened from the bottom of the columnar cavity, so that the movable thread or the movable ring can be conveniently installed. The internally mounted of column cavity has the loose axle of cooperation processing, and the bottom of loose axle is connected on the bottom closing cap of the column cavity of connector, can follow the vertical axis horizontal rotation of self. The top end of the movable shaft is connected to the inside of a movable shaft cap of the fixing device, the movable shaft and the movable shaft cap are fixedly connected together through a movable shaft sealing cover, and meanwhile the movable shaft and the movable shaft cap can be detached through the movable shaft sealing cover. The invention is convenient for the interchange installation and the disassembly of 2 movable pressure plates, namely a movable ring or a movable thread. An elastic device installed on the bottom sealing cover is further installed inside the columnar cavity, and a supporting gasket which is sleeved on the movable shaft and can freely move up and down is installed at the top end of the elastic device. The support pad supports the movable ring or the movable screw thread of the movable pressing sheet. The elastic device is used for increasing the pressure of the jacking and simultaneously playing a role in stabilizing the movable pressing sheet. A hollow columnar threaded rod which is sleeved on the movable shaft and fixed is also arranged above the movable threaded support gasket. The connector is at the upper port department of column cavity, and the processing is installed the activity axle of fixed loose axle and restriction loose axle activity from top to bottom and the activity of rocking by the mounting plate. The movable shaft is a shaft which can rotate but can not be pulled out during work. The movable shaft can drive the threaded rod to rotate, and the rotation of the threaded rod drives the engaged movable threads to move up and down. Or the movable shaft controls the movable supporting gasket along with the elastic device through the stop hook at the lower part of the movable shaft so as to control the movable ring to move up and down.
The technical scheme is further that the height dimension of the movable thread or the movable ring of the movable pressing sheet is consistent with that of the lifting hole groove, and the height dimension is larger than the vertical height dimension between the transverse positioning rod and the longitudinal positioning rod. The height dimension is limited, the lifting distance of the movable pressing sheet is ensured to be larger than the height distance between the transverse positioning rod and the longitudinal positioning rod, and the 2 positioning rods can be pressed together. The movable thread of the movable pressing sheet is a hollow cylinder with 2/3 cut off along the vertical axis, and the movable thread is engaged with the threaded rod on the movable shaft. The movable ring of the movable pressing sheet is in a hollow cylindrical shape, a transverse stop hook is processed at the lower part of the movable shaft matched with the movable ring, the stop support gasket moves along with the elastic device, and the stop hook can be bounced upwards by the elastic device at the closing position. The height position of the stop hook can enable the bottom of the stopped movable pressing piece to be flush with the bottom of the connector, so that the movable pressing piece is located at the lowest position, and the convex edge is located at the lowest point. The lower part of the movable ring is provided with a bottom opening which is larger than 90 degrees horizontally and is matched with the movable range of the stop hook at the position corresponding to the stop hook. The supporting pad matched with the stop hook is provided with a stop hook opening with the size larger than that of the stop hook. The movable pressing sheet with movable screw thread is driven by the rotating shaft to rotate the screw rod and to move the movable screw thread meshed with the screw rod upwards or downwards, so that the movable pressing sheet is lifted. The movable pressing sheet with the movable ring is directly driven by the elastic device to bounce the movable ring, the movable pressing sheet is manually pressed to the bottom of the lifting hole groove when the movable pressing sheet descends, and then the movable shaft rotates to stop the direction of the hook, so that the elastic device bounces upwards.
The technical scheme is further that a position mark in a closing state of the stop hook is machined on the upper surface of a movable shaft cap of the fixing device, and an opening mark in the closing state of the stop hook is machined on the upper surface of the fixed pressing piece, so that the fixing device is convenient to use.
Compared with the prior art, the invention has the following effects that the pointer positioning rod chip clamp is matched with a pointer positioning rod chip clamp for use, and the positions of two pointer positioning rods can be fixed after the chips are clamped by the positioning rods. The fixing device is fast, convenient and easy to operate in fixing and unlocking.
Drawings
FIG. 1 is a schematic top view of the stage of the present invention.
FIG. 2 is a schematic top view of the present invention showing the use of the fixed vertical and horizontal positioning rods.
Fig. 3 is a schematic top view of the present invention.
Fig. 4 is a schematic top view and a schematic left view of a rotary movable pressing sheet according to the present invention.
Fig. 5 is a schematic front view of the working principle of the connector of the present invention with a fixing press sheet partially cut away.
Fig. 6 is a front view of a threaded rod of the present invention engaged with a movable thread of a movable press plate.
Fig. 7 is a schematic top and left view of a connector and a fixing pressing plate according to the present invention.
Fig. 8 is a schematic top view, partially broken away, of a movable pressing sheet of the present invention engaged with a connecting head.
Fig. 9 is a schematic front view of a partially broken-away general structure of a connecting head of the present invention with a movable pressing sheet removed.
FIG. 10 is a schematic front view of a partially sectioned cylindrical cavity internal component structure of a movable shaft cap of the present invention.
FIG. 11 is a front view of the general structure of the present invention with the fixing tab cut away.
Fig. 12 is a left side schematic view of the general structure of fig. 11 with the movable blade removed.
Fig. 13 is a left side view of the internal components of fig. 11 of the present invention with the cylindrical cavity removed.
Fig. 14 is a schematic structural diagram of a front view, a top view and a left view of a straight spring type movable pressing sheet according to the present invention.
Fig. 15 is a front view of the general structure of the present invention using the fixing tab of fig. 14.
Fig. 16 is a top view of the general structure of fig. 15 in accordance with the present invention.
In the figure: 1. an object stage; 2. a transverse positioning rod; 3. a fixing device; 4. a longitudinal positioning rod; 5. movably tabletting; 6. a movable shaft cap; 7. fixing the pressing sheet; 8. a movable shaft sealing cover; 9. a rib; 10. a movable thread; 11. a columnar cavity; 12. punching a hole by the positioning rod; 13. a lifting hole groove; 14. a bottom cover; 15. a threaded rod; 16. a connector; 17. a movable shaft; 18. an elastic device; 19. a movable ring; 20. a stopping hook; 21. a support pad; 22. opening the stop hook; 23. cutting off the sealing sheet; 24. a cutoff location identification; 25. opening the identifier; 26. the bottom end is provided with a gap.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
Refer to the shape structure in fig. 1 to 16. A positioning and fixing device of a chip clamp mainly comprises a movable pressing sheet 5, a fixed pressing sheet 7 and a connector 16 for connecting the movable pressing sheet and the fixed pressing sheet. The fixing principle of the invention is as follows: the level on the objective table 1 is vertical cross-shaped longitudinal positioning rod 4 and transverse positioning rod 2, and because of convenient movement, the two are not on the same horizontal plane, but staggered up and down. Therefore, 1 positioning rod is fixed by the positioning rod through hole 12, and the other 1 positioning rod is jacked upwards by the convex edge 9 of the movable pressing sheet 5, so that the 2 positioning rods are in close contact and are fixed by the self friction force of the 2 positioning rods.
The method is characterized in that: the movable pressing piece 5 is a thin cuboid which is horizontally arranged and has a rectangular horizontal surface, a convex edge 9 penetrating through the middle line of the long side of the rectangle is processed on the horizontal surface of the movable pressing piece 5, and one end of the convex edge 9 extends out to be connected with a movable thread 10 or a movable ring 19 which is vertically vertical to the horizontal movable pressing piece 5. The convex rib 9 has the functions of reducing the cross section and connecting the movable thread 10 or the movable ring 19, and can reduce the contact area with the transverse positioning rod 2 or the longitudinal positioning rod 4 and increase the contact pressure. The fixed pressing sheet 7 of the fixing device 3 is a cuboid which is vertically rectangular and is vertically arranged, one end of the cuboid is provided with a connector 16 connected with the movable pressing sheet 5, and the fixed pressing sheet 7 and the connector 16 are integrally processed together. A positioning rod through hole 12 which horizontally penetrates through the fixed pressing sheet 7 is processed on a vertical cuboid of the fixed pressing sheet 7. The middle part of the connector 16 is provided with a vertical through-going cylindrical cavity 11. The radius size of the columnar cavity 11 is matched with the radius size of the movable thread 10 or the movable ring 19 of the movable pressing sheet 5, and the movable thread 10 or the movable ring 19 can be horizontally placed in the columnar cavity 11. The movable pressing sheet 5 and the fixed pressing sheet 7 of the fixing device 3 are connected in a right angle mode, wherein the right angle mode is vertical to the horizontal direction, and the right angle mode is vertical to the horizontal direction through a connector 16. On the outer wall of one side of the connector 16 of the fixing device 3 facing the movable pressing sheet 5, a lifting hole groove 13 which is matched with the convex rib 9 of the movable pressing sheet 5 in size and penetrates through the outer wall of the connector 16 is processed from the bottom of the columnar cavity 11. The lifting hole groove 13 is opened from the bottom of the cylindrical cavity 11 to facilitate the installation of the movable screw thread 10 or the movable ring 19. The rib 9 can move up and down along the elevation hole groove 13. The movable shaft 17 is installed in the columnar cavity 11 and is matched with the columnar cavity, and the bottom end of the movable shaft 17 is connected to the bottom sealing cover 14 of the columnar cavity 11 of the connector 16 and can horizontally rotate along the vertical axis of the movable shaft. The top end of the movable shaft 17 is connected with the inner part of the movable shaft cap 6 of the fixing device 3, the movable shaft 17 and the movable shaft cap 6 are fixedly connected together by the movable shaft sealing cover 8, and the movable shaft 17 and the movable shaft cap 6 can be detached through the movable shaft sealing cover 8. The invention is convenient for the interchange installation and the disassembly of 2 movable pressure plates 5, namely a movable ring 19 or a movable thread 10. An elastic device 18 arranged on the bottom cover 14 is also arranged in the cylindrical cavity 11, and a support gasket 21 which is sleeved on the movable shaft 17 and can freely move up and down and is used for a movable ring 19 of the movable pressing sheet 5 or the movable screw thread 10 is arranged at the top end of the elastic device 18. The elastic device 18 is used for increasing the pressing pressure and also for stabilizing the movable pressing sheet 5. A hollow cylindrical threaded rod 15 which is sleeved on the movable shaft 17 and fixed is also arranged above the supporting gasket 21 of the movable thread 10. The connector 16 is provided with a fixed movable shaft 17 and a stop sealing sheet 23 of the movable shaft 17 for limiting the up-and-down movement or swing of the movable shaft 17 at the upper opening of the columnar cavity 11. The movable shaft 17 is capable of rotating but cannot be pulled out during operation, and the sealing piece 23 needs to be cut off. The movable shaft 17 can drive the threaded rod 15 to rotate, and the rotation of the threaded rod 15 drives the engaged movable thread 10 to move up and down. Or the movable shaft 17 controls the supporting pad 21 moving along with the elastic device 18 through the stop hook 20 at the lower part thereof to control the up-and-down movement of the movable ring 19, thereby driving the movable pressing sheet 5.
In the technical scheme, the height of the movable thread 10 or the movable ring 19 of the movable pressing sheet 5 is consistent with that of the lifting hole groove 13, and the height is larger than the vertical height between the transverse positioning rod 2 and the longitudinal positioning rod 4. The height dimension is limited, the lifting distance of the movable pressing sheet 5 is ensured to be larger than the height distance between the transverse positioning rod 2 and the longitudinal positioning rod 4, and the 2 positioning rods can be pressed together. The movable thread 10 of the movable pressing sheet 5 is a hollow cylinder with 2/3 cut along the vertical axis, and the movable thread 10 is engaged with the threaded rod 15 on the movable shaft 17. The movable ring 19 of the movable pressing sheet 5 is hollow cylinder, and a transverse stopping hook 20 which is movable along with the elastic device 18 is processed on the lower part of the movable shaft 17 matched with the movable ring 19. The height position of the stop hook 20 can enable the bottom of the stopped movable pressing sheet 5 to be flush with the bottom of the connector 16, so that the movable pressing sheet 5 is ensured to be at the lowest position, and the convex rib 9 is at the lowest point. A bottom end opening 26 which is larger than 90 degrees horizontally and is matched with the moving range of the stop hook 20 is processed at the position of the lower part of the movable ring 19 corresponding to the stop hook 20. The supporting pad 21 used in cooperation with the stop hook 20 is provided with a stop hook opening 22 having a size larger than that of the stop hook 20.
The movable pressing sheet 5 with the movable threads 10 drives the threaded rod 15 to rotate by the rotating shaft 17, and the threaded rod 15 drives the movable threads 10 which are meshed with the threaded rod and only have 1/3 hollow cylindrical walls to move upwards or downwards, so that the movable pressing sheet 5 is lifted in a linkage manner.
The movable pressure plate 5 with the movable ring 19 is directly driven by the elastic device 18 to bounce the movable ring 19 to drive the movable pressure plate 5. When the device is used, the movable pressing piece 5 needs to be manually pressed to the bottom of the lifting hole groove 13, then the stop hook 20 of the movable shaft 17 is rotated to the closing position of the stop position mark 24, then the movable pressing piece 5 is released, and the elastic device 18 bounces the support gasket 21. The stop hook 20 stops the elastic device 18 from bouncing upwards, and the support gasket 21 is stopped below the stop hook 20 and stops. After the fixing device 3 moves to the position of fixing the longitudinal positioning rod 4 and the transverse positioning rod 2, the direction of the stop hook 20 of the movable shaft 17 is rotated to the opening position of the opening mark 25, and at this time, the stop hook 20 can pass through the stop hook opening 22 without blocking the bounce of the support gasket 21. Thereby the elastic device 18 is bounced upwards to jack the linked movable pressing sheet 5, so that the longitudinal positioning rod 4 and the transverse positioning rod 2 are crossed, tightly attached and fixed.
In the above technical solution, the upper surface of the movable shaft cap 6 of the fixing device 3 is provided with a stop position mark 24 of the stop hook 20 in a closed state, and the upper surface of the fixed pressing plate 7 is provided with an opening mark 25 of the stop hook 20.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims (3)

1. The utility model provides a positioning and fixing device of chip fixture, its mainly comprises activity preforming, fixed preforming and the connector of connecting them, its characterized in that: the movable pressing piece is a thin cuboid which is horizontally arranged and has a rectangular horizontal surface, a convex edge penetrating through the middle line of the long side of the rectangle is processed on the horizontal surface of the movable pressing piece, and one end of the convex edge extends out and is connected with a movable thread or a movable ring which is vertically vertical to the horizontal movable pressing piece; the fixed pressing sheet is a cuboid which is vertically rectangular and is vertically arranged, one end of the fixed pressing sheet is provided with a connector connected with the movable pressing sheet, and the fixed pressing sheet and the connector are integrally processed; a positioning rod through hole which horizontally penetrates through the fixed pressing sheet is processed on a vertical cuboid of the fixed pressing sheet; a columnar cavity which is vertically communicated up and down is processed in the middle of the connector; the radius size of the columnar cavity is matched with the radius size of a movable thread or a movable ring of the movable pressing sheet, and the movable thread or the movable ring can be horizontally placed in the columnar cavity; the movable pressing sheet and the fixed pressing sheet of the fixing device are connected in a right angle way by the connector, wherein the right angle way is vertical to the horizontal direction; a lifting hole groove which penetrates through the outer wall of the connector is processed on the outer wall of one side, facing the movable pressing sheet, of the connector of the fixing device from the bottom opening of the columnar cavity, and the size of the lifting hole groove is matched with that of a convex edge of the movable pressing sheet; a movable shaft which is processed in a matching way is arranged in the columnar cavity, the bottom end of the movable shaft is connected to a bottom sealing cover of the columnar cavity, and the movable shaft can horizontally rotate along the vertical axis of the movable shaft; the top end of the movable shaft is connected to the inside of the movable shaft cap, the movable shaft and the movable shaft cap are fixedly connected together through the movable shaft sealing cover, and the movable shaft cap can be detached through the movable shaft sealing cover; an elastic device arranged on the bottom sealing cover is also arranged in the columnar cavity, and a movable ring or a support gasket of movable threads of a movable pressing sheet, which is sleeved on a movable shaft and can freely move up and down, is arranged at the top end of the elastic device; a hollow columnar threaded rod sleeved and fixed on the movable shaft is also arranged above the movable thread support gasket; the connector is provided with a fixed movable shaft and a stop sealing sheet for limiting the movable shaft to move up and down or swing at the upper opening of the columnar cavity.
2. The positioning and fixing device of a chip holder according to claim 1, wherein: the height dimension of the movable thread or the movable ring of the movable pressing sheet is consistent with that of the lifting hole groove, and the height dimension is larger than the vertical height dimension between the transverse positioning rod and the longitudinal positioning rod; the movable thread of the movable pressing sheet is a hollow cylinder with 2/3 cut off along the vertical axis, and the movable thread is engaged with the threaded rod on the movable shaft in a matching way; the movable ring of the movable pressing sheet is in a hollow cylindrical shape, and a transverse stop hook of which the stop support gasket moves along with the elastic device is processed at the lower part of the movable shaft matched with the movable ring; the stopping hook can stop the upward bouncing of the elastic device at the closing position; the height position of the stop hook can enable the bottom of the stopped movable pressing sheet to be flush with the bottom of the connector; a bottom end opening which is larger than 90 degrees horizontally and is matched with the movement range of the stop hook is processed at the position of the lower part of the movable ring corresponding to the stop hook; the supporting pad matched with the stop hook is provided with a stop hook opening with the size larger than that of the stop hook.
3. The positioning and fixing device of a chip holder according to claim 2, wherein: the upper surface of the movable shaft cap of the fixing device is provided with a position mark in a stop hook closing state, and the upper surface of the fixed pressing piece is provided with an opening mark of the stop hook.
CN201811040012.1A 2018-09-06 2018-09-06 Positioning and fixing device of chip fixture Active CN108971780B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811040012.1A CN108971780B (en) 2018-09-06 2018-09-06 Positioning and fixing device of chip fixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811040012.1A CN108971780B (en) 2018-09-06 2018-09-06 Positioning and fixing device of chip fixture

Publications (2)

Publication Number Publication Date
CN108971780A CN108971780A (en) 2018-12-11
CN108971780B true CN108971780B (en) 2020-03-31

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Publication number Priority date Publication date Assignee Title
CN111187703B (en) * 2020-02-21 2020-09-29 厦门大学 Chip clamping device and nucleic acid detection system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200995372Y (en) * 2007-01-17 2007-12-26 天津市汉沽区茶西制桶厂 Clamp
CN201513851U (en) * 2009-09-29 2010-06-23 东莞市三立灯饰有限公司 Rotary fixing device
US9903716B1 (en) * 2014-12-20 2018-02-27 Gregory Eugene Laird Construction site offset adapter assembly
CN106425069B (en) * 2016-10-27 2018-12-14 江苏凌云恒晋汽车零部件有限公司 A kind of spot welding fixture (SWFX)
CN206300575U (en) * 2016-12-07 2017-07-04 珠海顺美医疗器械有限公司 For the fixture of test adaptor pointer
CN107297706A (en) * 2017-08-25 2017-10-27 十堰车仪电子科技有限公司 A kind of automobile meter pointer assembling jig
CN107470830A (en) * 2017-09-15 2017-12-15 深圳传音制造有限公司 A kind of weld jig for intelligent terminal mainboard

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