CN114888595A

CN114888595A - Fixing device is used in cutting of stainless steel sieve pipe

Info

Publication number: CN114888595A
Application number: CN202210507186.4A
Authority: CN
Inventors: 蒋红兵
Original assignee: Jiangsu Yasheng Metal Products Co ltd
Current assignee: Jiangsu Yasheng Metal Products Co ltd
Priority date: 2022-05-11
Filing date: 2022-05-11
Publication date: 2022-08-12
Anticipated expiration: 2042-05-11
Also published as: CN114888595B

Abstract

The invention relates to the technical field of cutting and fixing equipment of sieve tubes, and discloses a fixing device for cutting a stainless steel sieve tube, which comprises an adjusting mechanism and a sieve tube structure, wherein the adjusting mechanism comprises a fixed shaft sleeve, a locking nut is fixedly installed at the left end of the fixed shaft sleeve, a locking nut with one end extending into an inner cavity of the adjusting mechanism is sleeved on the inner wall of the locking nut in a threaded manner, a movable pressing block is movably sleeved at the other end of the inner cavity of the adjusting mechanism, and a threaded shaft sleeve is connected to the right end of the adjusting mechanism in a threaded manner. This fixing device is used in cutting of stainless steel screen pipe utilizes its comb-tooth-shaped structure setting through the setting of centre gripping comb piece on the clamping component, can follow the inner wall of screen pipe structure and carry out the fixed centre gripping action to the filtration slotted hole above that for this fixing device can produce great clamping-force to this stainless steel screen pipe with less pressure, with effectively improving its steadiness in the cutting process, makes its difficult phenomenon that takes place the rotation and rock in the in-process of cutting and polishing.

Description

Fixing device is used in cutting of stainless steel sieve pipe

Technical Field

The invention relates to the technical field of cutting and fixing equipment of sieve tubes, in particular to a fixing device for cutting a stainless steel sieve tube.

Background

The stainless steel sieve tube is a filtering layer structure widely applied to oil, gas and water well sand control systems, can carry out coarse filtration on fluid substances so as to effectively prevent large granular impurities carried on the stainless steel sieve tube from entering the next flow, is influenced by errors of the processing sizes of parts in the assembling process, needs to carry out a series of cutting and polishing operations on the end surface of the stainless steel sieve tube in order to ensure good assembling precision, but is difficult to control the clamping and fixing pressure when the stainless steel sieve tube is clamped, fixed and cut and polished due to the relationship of the thin-wall structural characteristics of the stainless steel sieve tube, and can cause the rotation of the stainless steel sieve tube in the cutting and polishing process if the pressure is too low, so that the end surface of the stainless steel sieve tube has a groove-shaped structure and the cutting and polishing forming precision is poor; and too big then can cause this stainless steel screen pipe excessive extrusion and lead to its phenomenon of taking place the deformation, and then influenced its filtration precision to this fluid material, stability and reliability are relatively poor.

Therefore, a fixing device for cutting a stainless steel screen pipe is needed to solve the above-mentioned defects of the prior art when cutting and fixing the stainless steel screen pipe.

Disclosure of Invention

Technical problem to be solved

The invention provides a fixing device for cutting a stainless steel sieve tube, which has the advantages of effectively clamping and fixing the stainless steel sieve tube, preventing the fixing pressure of the stainless steel sieve tube from being too large or too small, effectively improving the cutting and polishing precision of the end surface of the stainless steel sieve tube, and having higher stability and reliability, and solving the problem that the cutting and polishing forming precision is poorer because the end surface of the stainless steel sieve tube is in a groove-shaped structure because the stainless steel sieve tube has the thin-wall structural characteristics, the clamping and fixing pressure is difficult to control when the stainless steel sieve tube is clamped, fixed, cut and polished, and the stainless steel sieve tube rotates when the pressure is too small; and too big then will cause the phenomenon of extrusion deformation to this stainless steel screen pipe, and then influenced its filtration precision to fluid material, stability and the relatively poor problem of reliability.

(II) technical scheme

The invention provides the following technical scheme: the utility model provides a fixing device is used in cutting of stainless steel screen pipe, includes guiding mechanism and screen pipe structure, one side fixed mounting of guiding mechanism surface has the centre gripping axle sleeve to through the centre gripping axle sleeve with this fixing device fixed mounting for cutting of stainless steel screen pipe on cutting jig, guiding mechanism includes fixed axle sleeve, the left end fixed mounting of fixed axle sleeve has lock nut, and lock nut's inner wall screw has cup jointed the lock nut that one end extends to in the guiding mechanism inner chamber, the other end activity of guiding mechanism inner chamber has cup jointed movable briquetting, guiding mechanism's right-hand member threaded connection has the screw thread axle sleeve, and forms the transmission through compression spring between movable briquetting and the screw thread axle sleeve and be connected, the slotted hole that extends to in its inner chamber is seted up at the middle part of guiding mechanism surface, and has clamping member through slotted hole swing joint above that, clamping member's one end and screw thread cup joint form between the locking structure in lock nut on guiding mechanism The movable pressing block is in transmission connection with the clamping component, and a plurality of groups of balls are arranged between the movable pressing block and the clamping component to force the clamping component to be outwards expanded and clamped in the filtering slotted hole of the sieve tube structure.

Preferably, the locking structure comprises a locking screw sleeved in a locking nut on the adjusting mechanism in a threaded manner, one end of the locking screw is fixedly provided with the locking screw and extends to the middle of the inner cavity of the adjusting mechanism, and the middle of the outer surface of the locking screw is respectively and fixedly sleeved with three groups of wedge-shaped pressing plates and fixing clamping jaws.

Preferably, the centre gripping component includes fixed grillage, the slotted hole on the guiding mechanism is passed and its inner chamber middle part is extended to fixed grillage's bottom, and the terminal surface of wedge draw-in groove both sides has all been seted up a set of connection spout to with form swing joint between the fixed jack catch on the locking screw, the wedge draw-in groove has been seted up to fixed grillage's bottom, and the wedge clamp plate extends to the inside of wedge draw-in groove on the locking screw, fixed grillage's top fixed mounting has centre gripping comb piece to with the structural filtration slotted hole of screen pipe between form the joint.

Preferably, the clamping comb block is made of rubber, the thickness of each group of comb teeth on the clamping comb block is equal to the width of a filtering slotted hole on the sieve tube structure, and two sides of the clamping comb block are of downward-opening structures.

Preferably, the cross sections of the wedge-shaped pressing plate and the wedge-shaped clamping groove are both designed to be right-angled triangle structures, the inclined angle of the inclined edge of the wedge-shaped clamping groove is smaller than the inclined angle of the inclined edge of the wedge-shaped pressing plate, and meanwhile, the thickness of the wedge-shaped pressing plate is equal to the outer diameter of the ball on the adjusting mechanism.

(III) advantageous effects

The invention has the following beneficial effects:

1. this fixing device is used in cutting of stainless steel sieve pipe, to guiding mechanism, locking structure and clamping member's setting, and the effect of centre gripping comb piece on clamping member is down and is fixed the centre gripping action to the sieve pipe structure, compare with current cutting fixed technology to the stainless steel sieve pipe, it is higher to its centre gripping fixed pressure's controllability, make it can not lead to this sieve pipe to take place the phenomenon that the rotation rocked thereupon at the in-process of cutting because of the pressure undersize, also can not lead to its phenomenon that takes place extrusion deformation because of pressure is too big, and then effectively improved its cutting precision of polishing to this stainless steel sieve pipe, stability and reliability are higher.

2. This fixing device is used in cutting of stainless steel screen pipe sets up through the linkage of its upper structure between guiding mechanism and the locking structure for this fixing device can utilize guiding mechanism and the orbit radius of centre gripping comb piece surface on the adjustment clamping member earlier when centre gripping stainless steel screen pipe, so that this fixing device is applicable in the stainless steel screen pipe of different specifications, and then utilize the locking structure to fix the centre gripping action to this stainless steel screen pipe again, and then effectively improved this fixing device for cutting of stainless steel screen pipe's application scope.

3. This fixing device is used in cutting of stainless steel screen pipe utilizes its comb-tooth-shaped structure setting through the setting of centre gripping comb piece on the clamping component, can follow the inner wall of screen pipe structure and carry out the fixed centre gripping action to the filtration slotted hole above that for this fixing device can produce great clamping-force to this stainless steel screen pipe with less pressure, with effectively improving its steadiness in the cutting process, makes its difficult phenomenon that takes place the rotation and rock in the in-process of cutting and polishing.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of an adjusting mechanism according to the present invention;

FIG. 3 is a schematic view of the latch structure of the present invention;

FIG. 4 is a schematic view of a clamping member according to the present invention;

fig. 5 is a partial front view of the inventive structure.

In the figure: 1. an adjustment mechanism; 2. a locking structure; 3. a clamping member; 4. a screen pipe structure; 5. fixing the shaft sleeve; 6. locking the nut; 7. a movable pressing block; 8. a pressure spring; 9. a threaded shaft sleeve; 10. locking the screw rod; 11. a conical ram; 12. a wedge-shaped pressing plate; 13. fixing the clamping jaw; 14. fixing the plate frame; 15. connecting the sliding chute; 16. a wedge-shaped clamping groove; 17. clamping the comb block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a fixing device for cutting a stainless steel sieve tube comprises an adjusting mechanism 1 and a sieve tube structure 4, wherein a clamping shaft sleeve is fixedly installed on one side of the outer surface of the adjusting mechanism 1, and the fixing device for cutting the stainless steel sieve tube is fixedly installed on a cutting clamp through the clamping shaft sleeve, as shown in fig. 2, the adjusting mechanism 1 comprises a fixed shaft sleeve 5, a locking nut 6 is fixedly installed on the left end of the fixed shaft sleeve 5, a locking nut 6 with one end extending into the inner cavity of the adjusting mechanism 1 is sleeved on the inner wall thread of the locking nut 6, a movable pressing block 7 is movably sleeved on the other end of the inner cavity of the adjusting mechanism 1, a thread shaft sleeve 9 is connected on the right end of the adjusting mechanism 1 through the thread, the movable pressing block 7 and the thread shaft sleeve 9 form transmission connection through a pressure spring 8, three groups of slotted holes which extend into the inner cavity and are arranged in an annular array are formed in the middle part of the outer surface of the adjusting mechanism 1, and is movably connected with a clamping member 3 through a slotted hole on the adjusting mechanism, and the linkage arrangement between the adjusting mechanism 1 and the clamping member 3 is used for adjusting the track circle external diameter of the outer surface of the clamping member 3, so that the fixing device can be used for stainless steel with different specifications, one end of the clamping component 3 is in transmission connection with the locking structure 2 which is sleeved in the locking nut 6 on the adjusting mechanism 1 in a threaded manner, and a plurality of groups of balls are arranged between the movable pressing block 7 and the clamping component 3 to force the clamping component 3 to expand outwards and be clamped in the filtering slot hole of the sieve tube structure 4, the linkage arrangement between the adjusting mechanism 1 and the locking structure 2 is used for locking the balls thereon and driving the clamping member 3 to perform a short-distance opening action, so that the clamping member 3 can be firmly clamped in the filtering slot of the sieve tube structure 4 to clamp and fix the stainless steel sieve tube.

As shown in fig. 3, in this technical scheme, locking structure 2 includes that the screw thread cup joints the locking screw 10 in locking nut 6 on guiding mechanism 1, and the one end fixed mounting of locking screw 10 has locking screw 10 and extends to the middle part of guiding mechanism 1 inner chamber, and the middle part of locking screw 10 surface is fixed respectively to be cup jointed three groups and is wedge clamp plate 12 and the fixed jack catch 13 of annular array, and three groups of wedge clamp plates 12 and three groups of fixed jack catch 13 supports staggered arrangement in proper order.

As shown in fig. 4, in the present technical solution, the clamping member 3 includes a fixing plate frame 14, the bottom end of the fixing plate frame 14 passes through the slotted hole on the adjusting mechanism 1 and extends to the middle of the inner cavity thereof, and a set of connecting sliding grooves 15 have been all seted up on the end surfaces of both sides of the wedge-shaped clamping groove 16, and form a movable connection with the fixing jaw 13 on the locking screw 10, the wedge-shaped clamping groove 16 has been seted up at the bottom end of the fixing plate frame 14, and the wedge-shaped pressing plate 12 on the locking screw 10 extends to the inside of the wedge-shaped clamping groove 16, the top end of the fixing plate frame 14 is fixedly mounted with a clamping comb block 17, and forms a clamping connection with the filtering slotted hole on the sieve tube structure 4.

In this technical scheme, what centre gripping comb piece 17 adopted is that the rubber material is made and is formed, and simultaneously, the thickness of every group broach on it equals the width that filters the slotted hole on the screen pipe structure 4, and its both sides establish the structure that opens downwards to make the centre gripping comb piece 17 on the screen pipe structure 4 can be inseparable in the joint filters the slotted hole on screen pipe structure 4, and can not cause the problem of extrusion damage to the filtration slotted hole on it.

As shown in fig. 5, in the present technical solution, the cross sections of the wedge-shaped pressing plate 12 and the wedge-shaped clamping groove 16 are both set to be a right triangle structure, and the inclined angle of the inclined edge of the wedge-shaped clamping groove 16 is smaller than the inclined angle of the inclined edge of the wedge-shaped pressing plate 12, and meanwhile, the thickness of the wedge-shaped pressing plate 12 is equal to the outer diameter of the balls on the adjusting mechanism 1, so that the clamping member 3 can be driven to expand outward in the process of extruding the balls, so as to implement a fixed clamping action on the sieve tube structure 4.

The use method and the working principle of the embodiment are as follows:

firstly, a threaded shaft sleeve 9 on an adjusting mechanism 1 is rotated to compress a pressure spring 8 between the threaded shaft sleeve and a movable pressing block 7, balls on the adjusting mechanism 1 are extruded to move inwards to move into a gap formed between a wedge-shaped pressing plate 12 and a wedge-shaped clamping groove 16, and the clamping member 3 is driven to expand outwards under the action of a connecting sliding groove 15 on the clamping member 3, so that the radius of a track circle formed on the outer surface of a clamping comb block 17 on the clamping member 3 is equal to the inner diameter of a sieve tube structure 4;

then, the device is fixedly installed on a clamp of a cutting device according to the above content, the sieve tube structure 4 is sleeved on the outer surface of the clamping member 3, then the locking structure 2 is rotated and drives the locking screw 10 thereon to move inwards under the screw transmission action of the locking nut 6, so that the conical pressure head 11 thereon extrudes balls between the wedge-shaped pressure plate 12 and the wedge-shaped clamping groove 16, and further the clamping comb block 17 on the clamping member 3 is forced to open outwards again along the track of the connecting sliding groove 15 and is clamped in the filtering groove hole on the sieve tube structure 4 to realize the cutting and fixing action thereof.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a fixing device is used in cutting of stainless steel screen pipe, includes guiding mechanism (1) and sieve tube structure (4), one side fixed mounting of guiding mechanism (1) surface has the centre gripping axle sleeve to through the centre gripping axle sleeve and with this fixing device fixed mounting is used in cutting of stainless steel screen pipe on cutting jig, its characterized in that: the adjusting mechanism (1) comprises a fixed shaft sleeve (5), a locking nut (6) is fixedly installed at the left end of the fixed shaft sleeve (5), a locking nut (6) with one end extending into the inner cavity of the adjusting mechanism (1) is sleeved on the inner wall thread of the locking nut (6), a movable pressing block (7) is movably sleeved on the other end of the inner cavity of the adjusting mechanism (1), a thread shaft sleeve (9) is connected with the right end thread of the adjusting mechanism (1), the movable pressing block (7) and the thread shaft sleeve (9) form transmission connection through a pressure spring (8), a slotted hole extending into the inner cavity of the adjusting mechanism (1) is formed in the middle of the outer surface of the adjusting mechanism (1), a clamping member (3) is movably connected through the slotted hole in the middle of the outer surface of the adjusting mechanism, one end of the clamping member (3) is in transmission connection with a locking structure (2) sleeved on the adjusting mechanism (1) through threads in the locking nut (6), and a plurality of groups of balls are arranged between the movable pressing block (7) and the clamping member (3) to force the clamping member (3) to be outwards expanded and clamped in the filtering slot of the sieve tube structure (4).

2. The fixing device for cutting the stainless steel sieve tube of claim 1, wherein: locking structure (2) including the locking screw rod (10) that the screw thread cup jointed in locking nut (6) on guiding mechanism (1), the one end fixed mounting of locking screw rod (10) has locking screw rod (10) and extends to the middle part of guiding mechanism (1) inner chamber, the middle part of locking screw rod (10) surface is fixed respectively to cup joint three wedge clamp plates of group (12) and fixed jack catch (13).

3. The fixing device for cutting the stainless steel sieve tube of claim 2, wherein: clamping member (3) are including fixed grillage (14), the bottom of fixed grillage (14) passes the slotted hole on guiding mechanism (1) and extends to its inner chamber middle part, and a set of connection spout (15) have all been seted up to the terminal surface of wedge draw-in groove (16) both sides to with form swing joint between fixed jack catch (13) on locking screw (10), wedge draw-in groove (16) have been seted up to the bottom of fixed grillage (14), and locking screw (10) go up wedge clamp plate (12) and extend to the inside of wedge draw-in groove (16), the top fixed mounting of fixed grillage (14) has centre gripping comb piece (17) to with form the joint between the filtration slotted hole on sieve tube structure (4).

4. The fixing device for cutting the stainless steel sieve tube of claim 3, wherein: the clamping comb block (17) is made of rubber, the thickness of each group of comb teeth on the clamping comb block is equal to the width of a filtering slotted hole on the sieve tube structure (4), and two sides of the clamping comb block are provided with structures which are opened downwards.

5. The fixing device for cutting the stainless steel sieve tube of claim 4, wherein: the cross sections of the wedge-shaped pressing plate (12) and the wedge-shaped clamping groove (16) are both designed to be right-angled triangle structures, the inclined angle of the inclined edge of the wedge-shaped clamping groove (16) is smaller than the inclined angle of the inclined edge of the wedge-shaped pressing plate (12), and meanwhile the thickness of the wedge-shaped pressing plate (12) is equal to the outer diameter of the ball on the adjusting mechanism (1).