CN211877318U - Leak detector leak detection clamp - Google Patents

Leak detector leak detection clamp Download PDF

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Publication number
CN211877318U
CN211877318U CN201922476259.4U CN201922476259U CN211877318U CN 211877318 U CN211877318 U CN 211877318U CN 201922476259 U CN201922476259 U CN 201922476259U CN 211877318 U CN211877318 U CN 211877318U
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China
Prior art keywords
butt joint
leak detection
die
leak
workpiece
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CN201922476259.4U
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Chinese (zh)
Inventor
左泽凡
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Anhui Gebo Technology Co ltd
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Anhui Gebo Technology Co ltd
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Priority to CN201922476259.4U priority Critical patent/CN211877318U/en
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Abstract

The utility model discloses a leak detector leak detection clamp, which belongs to the technical field of helium leak detection of vacuum boxes, and comprises a clamp pressing table, an upper die and a lower die which are arranged on the clamp pressing table, wherein the upper die is driven by a cylinder to lift, the upper die comprises a mounting seat, the bottom of the mounting seat is provided with a plurality of butt joint pipes, the lower die comprises a die seat, the die seat is provided with a plurality of workpiece grooves, and a sealed leak detection cavity is formed by butt joint of the butt joint pipes and the workpiece grooves in one-to-one correspondence; the outer side of the butt joint pipe is provided with a plurality of alignment shaft pins, the outer side of the workpiece groove is provided with a plurality of shaft pin holes, and the alignment shaft pins correspond to and are matched with the shaft pin holes. The butt joint of the upper die and the lower die is controlled through the air cylinder, so that a leakage detection cavity is formed inside the butt joint pipe and the workpiece groove, workpieces are conveniently taken and placed, the leakage detection efficiency is improved, and the upper die and the lower die can be prevented from being transversely dislocated by inserting the alignment shaft pin and the shaft pin hole.

Description

Leak detector leak detection clamp
Technical Field
The utility model relates to a vacuum chamber helium leak hunting technical field, in particular to leak detector leak hunting anchor clamps.
Background
The helium leakage detection of the vacuum box is realized by using helium as tracer gas according to the basic leakage detection principle of helium leakage detection, filling helium into a workpiece in the vacuum box, and then rapidly and accurately judging the leakage condition of the workpiece through a helium leakage detector.
The helium leakage detection method for the vacuum box comprises the steps of placing a workpiece to be detected in a lower die, filling helium into the upper die after the upper die and the lower die are closed to detect leakage, wherein the helium is filled into the lower die to detect leakage, but only a single workpiece can be placed in the leakage detection operation at each time, the efficiency is low in batch leakage detection, the use cost of the helium is also improved, in the process of closing the upper die and the lower die, the upper die and the lower die are easily subjected to transverse dislocation due to the fact that the upper die applies pressure, the workpiece is easily damaged, and if the butt joint surfaces cannot be completely attached during closing the upper die and the lower die, gaps are easily formed in the butt joint positions to influence the sealing performance of the upper die and.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an aim at just can only leak hunting single work piece at every turn in order to solve above-mentioned vacuum chamber helium leak hunting, dislocation easily or produce the problem that the gap influences the gas tightness of leak hunting cavity and fragile work piece when low efficiency and improved helium use cost and go up the lower mould compound die provides a leak hunting appearance leak hunting anchor clamps, has and makes things convenient for the work piece to get and puts, can once measure a plurality of work pieces and improve work efficiency, lower mould dislocation in the reduction, the protection work piece is not damaged, the advantage of the leakproofness after the improvement compound die.
The utility model discloses a following technical scheme realizes above-mentioned purpose, a leak detector leak hunting anchor clamps, press the platform and install last mould and lower mould on the platform including the anchor clamps, go up the mould by cylinder drive lift, go up the mould and include the mount pad, the bottom of mount pad sets up a plurality of butt joint pipes, the lower mould includes the die holder, set up a plurality of work piece grooves on the die holder, through one-to-one butt joint pipe with the butt joint pipe of work piece groove butt joint forms sealed leak hunting cavity, through filling the gas tightness of helium detection internal work piece to sealed leak hunting cavity;
the outer side of the butt joint pipe is provided with a plurality of alignment shaft pins, the outer side of the workpiece groove is provided with a plurality of shaft pin holes, and the alignment shaft pins correspond to and are matched with the shaft pin holes.
Preferably, the top of the workpiece groove is provided with a groove, a sealing gasket is arranged in the groove, and the butt joint pipe is in butt joint with the workpiece groove through extrusion of the sealing gasket.
Preferably, the outer wall of the mounting seat is provided with an inflation inlet, and a gas passage is formed between the inflation inlet and each butt joint pipe.
Preferably, the bottom of the die holder is provided with a leak detection interface, the bottom of the workpiece groove is provided with vent holes, and a gas passage is formed between the leak detection interface and each vent hole.
Preferably, the clamp pressing table comprises a top plate, a movable plate and a bottom plate, the top plate and the bottom plate are connected through a plurality of guide rods, the movable plate ascends and descends on the guide rods, and the movable plate is installed on a connecting rod at the output end of the cylinder.
Preferably, the mounting seat is fixed at the bottom of the movable plate, and the die holder is fixed on the upper surface of the bottom plate.
Compared with the prior art, the beneficial effects of the utility model are that:
1. mould and lower mould butt joint through cylinder control for butt joint pipe and work piece inslot portion form the leak hunting cavity, make things convenient for getting of work piece to put, the motive force of cylinder, can prevent to leak the inside helium that fills of cavity, the leakproofness of this cavity is influenced in helium backstep, and butt joint pipe and work piece groove are equipped with the multiunit and correspond each other, can once only test the gas tightness of a plurality of work piece, the work efficiency is greatly improved, and counterpoint pivot and axle pin hole are pegged graft and can be prevented to go up the in-process that the mould applyed pressure to the lower mould and take place horizontal dislocation, the inside work piece of leak hunting cavity has been protected effectively.
2. The top through the work piece groove sets up the recess, and the inside sealing gasket that sets up of recess plays, when butt joint pipe and work piece groove butt joint, the butt joint pipe is through the inseparable contact in indirect and work piece groove of the inside seal ring of extrusion recess to the leakproofness of sealed leak hunting cavity has been improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the lower mold structure of the present invention.
Fig. 3 is a schematic view of the upper mold structure of the present invention.
Fig. 4 is the schematic view of the butt joint structure of the butt joint pipe and the workpiece groove of the present invention.
In the figure: 1. the fixture comprises a fixture pressing table, 2, an upper die, 3, a lower die, 4, a cylinder, 5, a connecting rod, 6, a leak detection interface, 7, a top plate, 8, a moving plate, 9, a guide rod, 10, a bottom plate, 11, a die holder, 12, a workpiece groove, 13, an air vent, 14, a shaft pin hole, 15, a mounting seat, 16, an inflation inlet, 17, a butt joint pipe, 18, an alignment shaft pin, 19, a sealing washer, 20 and a groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, a leak detection fixture of a leak detector comprises a fixture pressing table 1, and an upper die 2 and a lower die 3 which are mounted on the fixture pressing table 1, wherein the upper die 2 is driven by a cylinder 4 to lift, the upper die 2 comprises a mounting seat 15, the bottom of the mounting seat 15 is provided with a plurality of butt pipes 17, the lower die 3 comprises a die holder 11, the die holder 11 is provided with a plurality of workpiece grooves 12, the butt pipes 17 corresponding to one another are in butt joint with the workpiece grooves 12 to form a sealed leak detection cavity, and the sealed leak detection cavity is filled with helium gas to detect the air tightness of internal workpieces; be provided with a plurality of counterpoint pivot 18 around the outside of a plurality of butt joint pipe 17, be provided with a plurality of axle pin holes 14 around the outside of a plurality of work piece groove 12, counterpoint pivot 18 corresponds and the adaptation with axle pin hole 14, mode through last mould 2 and 3 compound dies of lower mould, make and form the leak hunting cavity between butt joint pipe 17 and the work piece groove 12, the work piece is placed in work piece groove 12, conveniently get and put, and when last lower mould compound die, go up inside the axle pin hole 14 on the mould 2 can insert the lower mould 3 of counterpoint pivot 18 on the mould 2, thereby with lower mould 3 and the restriction of last mould 2 lateral shifting, it exerts pressure the in-process to lower mould 3 to place last mould 2, two moulds produce the dislocation, damage inside work.
The top of the workpiece groove 12 is provided with a groove 20, a sealing gasket 19 is arranged in the groove 20, the butt joint pipe 17 is butted with the workpiece groove 12 by extruding the sealing gasket 19, the groove 20 is convenient for the butt joint pipe 17 to be jointed with the workpiece groove 12, because the jointing surface can not ensure hundred percent jointing, a gap which can be sealed and butted by the sealing gasket 19 is arranged between the butt joint pipe 17 and the workpiece groove 12, thereby improving the sealing performance of a leak detection cavity, the outer wall of the mounting seat 15 is provided with an inflation opening 16, a gas passage is formed between the inflation opening 16 and each butt joint pipe 17, helium is filled into the leak detection cavity through the inflation opening 16, the inflation opening 16 is communicated with each butt joint pipe 17, therefore, the helium can enter each workpiece groove 12 through the butt joint pipe 17, the bottom of the die holder 11 is provided with a leak detection interface 6, the bottom of the workpiece groove 12 is provided with a vent hole 13, and a, leak hunting interface 6 and leak hunting instrument pipeline, if the gas leakage condition appears in the work piece, then the helium can get into leak hunting interface 6 along the air vent 13 of bottom, thereby it detects to be detected the instrument of leaking, anchor clamps press platform 1 to include roof 7, movable plate 8 and bottom plate 10, connect by a plurality of guide bar 9 between roof 7 and the bottom plate 10, movable plate 8 goes up the lift at guide bar 9, and movable plate 8 installs on the connecting rod 5 of 4 outputs of cylinder, press platform through three-plate four-axis and can improve the stability that anchor clamps pressed platform 1, mount pad 15 is fixed in 8 bottoms of movable plate, die holder 11 is fixed at bottom plate 10 upper surface, go up mould 2 and install on movable plate 8, promote moving plate 8 according to cylinder 4 and realize going up the.
The utility model discloses a theory of operation: when the clamp is used, the upper die 2 and the lower die 3 are in an initial state and are in a separated state, after workpieces are sequentially placed into the workpiece groove 12, the cylinder 4 is opened, the connecting rod 5 pushes the moving plate 8 to descend, the alignment shaft pin 18 of the upper die 2 is inserted into the shaft pin hole 14 of the lower die 3, the butt joint pipe 17 of the upper die 2 is in butt joint with the workpiece groove 12 of the lower die 3, helium is filled into the workpiece groove through the air inflation port 16, and then whether helium passes through the leak detection interface 6 is detected, so that the problem of insufficient air tightness of the workpieces in the batch is tested.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. The leak detection clamp for the leak detector is characterized by comprising a clamp pressing table (1), an upper die (2) and a lower die (3), wherein the upper die (2) and the lower die are mounted on the clamp pressing table (1), the upper die (2) is driven by a cylinder (4) to lift, the upper die (2) comprises a mounting seat (15), a plurality of butt joint pipes (17) are arranged at the bottom of the mounting seat (15), the lower die (3) comprises a die holder (11), a plurality of workpiece grooves (12) are formed in the die holder (11), a sealed leak detection cavity is formed by butt joint of the butt joint pipes (17) and the workpiece grooves (12) in one-to-one correspondence, and the helium gas in the sealed leak detection cavity is filled into the sealed leak detection cavity to detect the gas tightness;
a plurality of alignment shaft pins (18) are arranged around the outer sides of the butt joint pipes (17), a plurality of shaft pin holes (14) are arranged around the outer sides of the workpiece grooves (12), and the alignment shaft pins (18) correspond to and are matched with the shaft pin holes (14).
2. Leak detector leak detection jig according to claim 1, characterized in that a groove (20) is provided at the top of the workpiece groove (12), a sealing gasket (19) is provided inside the groove (20), and the butt pipe (17) is butted against the workpiece groove (12) by pressing the sealing gasket (19).
3. Leak detector leak detection jig according to claim 1, characterized in that the outer wall of the mounting base (15) is provided with a gas filling opening (16), a gas passage being formed between the gas filling opening (16) and each of the abutting pipes (17).
4. Leak detector leak detection jig according to claim 1, characterized in that the bottom of the die holder (11) is provided with a leak detection port (6), the bottom of the workpiece groove (12) is provided with vent holes (13), and a gas passage is formed between the leak detection port (6) and each vent hole (13).
5. Leak detector leak detection jig according to claim 1, characterized in that the jig pressing table (1) comprises a top plate (7), a moving plate (8) and a bottom plate (10), the top plate (7) and the bottom plate (10) are connected by a plurality of guide rods (9), the moving plate (8) ascends and descends on the guide rods (9), and the moving plate (8) is mounted on the connecting rod (5) at the output end of the cylinder (4).
6. Leak detector leak detection jig according to claim 5, characterized in that the mounting base (15) is fixed to the bottom of the moving plate (8) and the die base (11) is fixed to the upper surface of the bottom plate (10).
CN201922476259.4U 2019-12-31 2019-12-31 Leak detector leak detection clamp Active CN211877318U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922476259.4U CN211877318U (en) 2019-12-31 2019-12-31 Leak detector leak detection clamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922476259.4U CN211877318U (en) 2019-12-31 2019-12-31 Leak detector leak detection clamp

Publications (1)

Publication Number Publication Date
CN211877318U true CN211877318U (en) 2020-11-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922476259.4U Active CN211877318U (en) 2019-12-31 2019-12-31 Leak detector leak detection clamp

Country Status (1)

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CN (1) CN211877318U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112729711A (en) * 2020-12-28 2021-04-30 南京三乐集团有限公司 Device and method for detecting air tightness of vacuum electronic device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112729711A (en) * 2020-12-28 2021-04-30 南京三乐集团有限公司 Device and method for detecting air tightness of vacuum electronic device

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