CN114406734A

CN114406734A - Tool and equipment for processing valve body middle opening

Info

Publication number: CN114406734A
Application number: CN202210071301.8A
Authority: CN
Inventors: 陈锦标; 郭宝; 孙占江; 曹二帅; 杨军恒; 池汇泉; 曹铖淏
Original assignee: Beijing Valve General Factory Co ltd
Current assignee: Beijing Valve General Factory Co ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-04-29
Anticipated expiration: 2042-01-21
Also published as: CN114406734B

Abstract

The invention provides a tool and equipment for processing a middle opening of a valve body, relates to the technical field of valve body processing equipment, and aims to solve the technical problem of low clamping efficiency in the existing valve body processing; the tool for processing the middle opening of the valve body comprises a base, a positioning piece, a driving piece and a clamping piece; the positioning piece is arranged on the base and is provided with a gap with the base, and a first positioning part is arranged on one side of the positioning piece, which is far away from the base; the driving piece is arranged between the base and the positioning piece, two connecting blocks are arranged on the driving piece, the two connecting blocks respectively penetrate through the positioning piece, and the driving piece has a moving freedom degree close to or far away from the positioning piece; the two clamping pieces are hinged with the two connecting blocks in a one-to-one correspondence manner; the two clamping pieces are respectively provided with a second positioning part; when the driving piece is far away from the positioning piece, the driving piece drives the two port flanges which correspond to the second positioning parts on the two clamping pieces and clamp the valve body with the first positioning parts. The tool for processing the valve body middle opening has higher clamping efficiency.

Description

Tool and equipment for processing valve body middle opening

Technical Field

The invention relates to the technical field of valve body machining equipment, in particular to a tool and equipment for machining a middle opening of a valve body.

Background

A valve is a device for controlling the direction, pressure, flow rate, and the like of a fluid in a fluid system, and is a device capable of controlling the flow rate by flowing or stopping a medium in a pipe or an apparatus.

Valves generally comprise a valve body, which in turn comprises an inflow, an outflow and a central opening, and a control member. The operating end of the control component is positioned on the outer side of the valve body, the actuating end of the opening and closing component is positioned in the valve body, and the operating end and the actuating end are connected through a transmission piece arranged in the middle opening in a penetrating mode; the operation of the operation end enables the execution end to execute corresponding actions, so that communication, shutoff or partial closing and the like between the inflow port and the outflow port are formed, and the processing of the middle port of the valve body is an important ring in the processing of the valve body, which is related to the sealing performance of the valve.

At present, a middle opening of a valve body is generally clamped by a three-jaw chuck or a four-jaw chuck before turning, and the clamping efficiency is low.

Disclosure of Invention

Therefore, the invention provides a tool and equipment for machining a valve body middle opening, and aims to solve the technical problem that the machining efficiency of the existing valve body middle opening is low.

The technical scheme of the invention is as follows:

first aspect, this valve provides a frock is used in processing of mouth in valve body, and it includes:

a base;

the positioning piece is arranged on the base, a gap is formed between the positioning piece and the base, and a first positioning part is arranged on one side of the positioning piece, which is far away from the base;

the driving piece is arranged between the base and the positioning piece, two connecting blocks are arranged on the driving piece, the two connecting blocks respectively penetrate through the positioning piece, and the driving piece has a moving freedom degree close to or far away from the positioning piece;

the two clamping pieces are hinged with the two connecting blocks in a one-to-one correspondence manner; the two clamping pieces are respectively provided with a second positioning part; when the driving piece is far away from the positioning piece, the driving piece drives two port flanges, corresponding to the second positioning part on the clamping piece and clamping the valve body by the first positioning part, to be positioned.

Furthermore, the first positioning part comprises two first positioning blocks, and the two first positioning blocks are respectively arranged on the side surfaces of the positioning parts, which are far away from the base;

the two first positioning blocks are respectively provided with a first arc-shaped groove, and the bottom surfaces of the first arc-shaped grooves are configured to be capable of being attached to the outer peripheral surfaces of the corresponding port flanges;

and the two clamping pieces are respectively provided with a second arc-shaped groove, and the two second arc-shaped grooves can be opposite to the two first arc-shaped grooves one by one and can be attached to the corresponding peripheral surface of the port flange.

Further, the two clamping pieces respectively comprise a square section and a fan-shaped section; one end of the square section is hinged with the corresponding connecting block, and the small end of the fan-shaped section is connected with the other end of the square section;

an arc-shaped second positioning block is arranged on the inner side face of the fan-shaped section, and the second arc-shaped groove is formed in the second positioning block.

Further, the device also comprises a screw and a guide shaft; the screw rod is rotatably arranged on the positioning piece and comprises a left-handed section and a right-handed section which are connected in series;

one of the two first positioning blocks is provided with a left-handed threaded hole, and the other one of the two first positioning blocks is provided with a right-handed threaded hole; the left-handed threaded hole is in threaded connection with the left-handed section, and the right-handed threaded hole is in threaded connection with the right-handed section;

the guide shaft is fixedly arranged on the positioning piece and is parallel to the screw rod; the two first positioning blocks are respectively provided with a guide hole, and each guide hole is respectively sleeved on the guide shaft in a sliding manner.

Further, a backing plate is arranged in the first arc-shaped groove and supported on the wall surface of the inner side of the first arc-shaped groove through an elastic piece; the base plate is used for being attached to the inner side face of the corresponding port flange;

to being close to the direction of first arc-shaped groove bottom surface, the backing plate be used for with the side of port flange laminating includes oblique direction section and laminating section in proper order.

Furthermore, two guide parts are arranged on one side of the positioning part, which is far away from the base, the two guide parts are correspondingly arranged on the rear sides of the two clamping parts one by one, guide grooves are respectively arranged on the two guide parts, and the two guide grooves extend outwards in an oblique direction respectively in the direction far away from the positioning part;

and guide bodies are fixedly arranged on the two clamping pieces respectively, and each guide body is provided with a guide block extending into the corresponding guide groove respectively.

Furthermore, an installation block is arranged on one side of the positioning piece, which is far away from the base, a threaded hole is formed in the installation block, and a stud is screwed in the threaded hole; the stud is provided with a first end face extending out of the threaded hole, and the first end face is used for being attached to the technical face of the valve body; wherein the technical face is opposite to the middle opening of the valve body.

In a second aspect, the invention provides a valve body middle opening processing device, which comprises a device body and the valve body middle opening processing tool;

the equipment comprises an equipment body and is characterized in that a mounting seat is arranged on the equipment body, the base is fixedly arranged on the mounting seat, a driving rod is arranged on the equipment body, and the driving rod penetrates through the base and is connected with the driving piece.

The working principle and the beneficial effects of the invention are as follows:

according to the tool and the equipment for processing the valve body middle opening, the driving part is arranged between the base and the positioning part, the first positioning part is arranged on the positioning part, the two connecting blocks penetrating through the positioning part are arranged on the driving part, the clamping parts are respectively hinged on the connecting blocks, the second positioning parts are respectively arranged on the clamping parts, and the driving part moves towards the direction far away from the positioning part, so that the two second positioning parts and the first positioning part can clamp the two port flanges of the valve body respectively, and the positioning and clamping of the valve body are also finished, and the valve body can be subjected to subsequent turning processing; compared with the clamping mode of the existing three-jaw chuck or four-jaw chuck, the scheme of the invention can control the driving piece to slide so as to clamp the valve body, manual alignment is not needed, and the working efficiency can be greatly improved.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a cross-sectional view of a tool for machining a valve body middle opening according to a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a positioning element according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a clamping member according to an embodiment of the present invention;

fig. 4 is a schematic view of the tool for processing the middle opening of the valve body in another state according to the first embodiment of the present invention;

fig. 5 is a schematic structural diagram of a positioning element according to a second embodiment of the present invention;

fig. 6 is a schematic structural diagram of a first positioning block according to a third embodiment of the present invention;

FIG. 7 is a cross-sectional view of a spacer block of FIG. 6 at A-A according to a third embodiment of the present invention;

fig. 8 is a sectional view of a tool for machining a valve body middle opening according to a fourth embodiment of the present invention;

FIG. 9 is a view from the B direction;

FIG. 10 is an enlarged view of a portion of FIG. 8 at C;

fig. 11 is a cross-sectional view of a tool for machining a valve body middle opening according to a fifth embodiment of the present invention.

In the figure: 100-valve body, 110-port flange, 120-middle port, 200-base, 300-positioning piece, 310-first positioning block, 311-first arc-shaped groove, 320-through hole, 330-screw hole, 340-sliding groove, 350-guide hole, 400-driving piece, 410-connecting block, 420-clamping piece, 421-square section, 422-sector section, 423-second positioning block, 424-second arc-shaped groove, 425-connecting rod, 426-guide block, 500-fixed length sleeve, 610-screw, 620-guide shaft, 700-backing plate, 710-oblique guide section, 720-attaching section, 730-spring, 740-guide rod, 800-guide part, 810-T-shaped groove, 900-mounting block and 910-stud.

Detailed Description

Referring to fig. 1, a valve body 100 to be processed has a body in which a passage through which a medium flows is formed, and port flanges 110 are respectively provided at the body at both ends of the passage; a central opening 120 is provided in the middle of the body orthogonal to the channel. The tooling of the present embodiment is used to fix the valve body 100 so as to perform turning on the center opening 120.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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 inventive step, are intended to be within the scope of the present invention.

Example one

The present embodiment provides a tool for machining a valve body middle opening, which is shown in fig. 1 to 4 and includes a base 200, a positioning member 300, a driving member 400, and a clamping member 420; the positioning member 300 is disposed on the base 200, a gap is disposed between the positioning member 300 and the base 200, and a first positioning portion is disposed on a side of the positioning member 300 away from the base 200; the driving member 400 is disposed between the base 200 and the positioning member 300, two connection blocks 410 are disposed on the driving member 400, the two connection blocks 410 respectively pass through the positioning member 300, and the driving member 400 has a freedom of movement close to or far from the positioning member 300; the number of the clamping pieces 420 is two, and the two clamping pieces 420 are hinged with the two connecting blocks 410 in a one-to-one correspondence manner; the two clamping pieces 420 are respectively provided with a second positioning part; when the driving member 400 is far away from the positioning member 300, the driving member drives the two port flanges 110 of the valve body 100 to be clamped by the first positioning portions corresponding to the second positioning portions of the two clamping members 420.

That is, in the tooling of the present embodiment, the positioning element 300 is fixed on the base 200, and a certain distance is provided between the positioning element 300 and the base 200, and the driving element 400 is located between the positioning element 300 and the base 200 and can move between the positioning element 300 and the base 200; two through holes 320 are formed in the positioning member 300, two connection blocks 410 are arranged on the driving rod member, the two connection blocks 410 can correspondingly penetrate through the two through holes 320, and the two connection blocks 410 can slide in the corresponding through holes 320 along with the movement of the driving member 400.

When the driving member 400 moves away from the positioning member 300, the two clamping members 420 are driven to move towards the positioning member 300, and the first positioning portions on the positioning member 300 and the second positioning portions on the two clamping members 420 can clamp the two port flanges 110 of the valve body 100; when the driving member 400 moves toward the positioning member 300, the two clamping members 420 are driven to move away from the positioning member 300, that is, the two clamping members 420 and the positioning member 300 are separated from the valve body 100, so that the valve body 100 can be detached.

According to the tool for processing the valve body middle opening, the clamping of the valve body 100 is completed by adopting the structure, on one hand, the clamping or the loosening of the valve body 100 can be completed only by controlling the movement of the driving piece 400; on the other hand, in the embodiment, the two port flanges 110 of the valve body 100 are positioned and clamped, and compared with a mode of adopting a three-jaw or four-jaw chuck, the embodiment can reduce the alignment time of the valve body 100 during clamping, and improve the clamping efficiency.

The base 200 of the present embodiment has a disk shape, and the base 200 is fixed to a connecting plate of a lathe; it should be noted that the base 200 may also be square or have other shapes, and the specific structure of the base fixed on the connecting disc can refer to the prior art, which is not described herein again.

The positioning member 300 of the present embodiment is disc-shaped, and as shown in fig. 1 to 4, a plurality of mounting holes are formed on the positioning member 300, and threaded holes are formed on the base 200, which are opposite to the mounting holes one by one; bolts are inserted through the mounting holes and screwed into the corresponding screw holes, thereby fixing the spacer 300 to the base 200. In this embodiment, the length fixing sleeves 500 are respectively sleeved on the bolts, and two ends of the length fixing sleeves 500 are respectively abutted against the base 200 and the positioning member 300, so that a required distance for the driving member 400 to move is formed between the base 200 and the positioning member 300. It should be noted that the shape of the positioning element 300 is not limited thereto, and may also be other shapes such as a square shape, and is not described herein again.

Referring to fig. 1 and fig. 2, the first positioning portion of the present embodiment includes two first positioning blocks 310, the two first positioning blocks 310 are respectively and fixedly disposed on a side of the positioning member 300 away from the driving member 400, the two first positioning blocks 310 are respectively provided with first arc-shaped grooves 311, and the two port flanges 110 of the valve body 100 can be respectively inserted into the two first arc-shaped grooves 311.

Referring to fig. 1 and 4, the driving member 400 of the present embodiment is disc-shaped, two connecting blocks 410 are fixedly disposed on a side of the driving member 400 facing the positioning member 300, two through holes 320 are disposed on the positioning member 300, and the two connecting blocks 410 are slidably disposed through the corresponding through holes 320; as the driving member 400 moves, the length of the two connecting blocks 410 extending out of the positioning member 300 changes.

Referring to fig. 1 and 3, the two clamping members 420 of the present embodiment are hinged to the two connecting blocks 410 in a one-to-one correspondence manner, and the two clamping members 420 of the present embodiment respectively include a square section 421 and a segment 422; wherein, one end of the square section 421 is hinged with the connecting block 410, and the small end of the fan-shaped section 422 is fixedly connected with the other end of the square section 421; an arc-shaped second positioning block 423 is arranged on the inner side surface of the fan-shaped section 422, a second arc-shaped groove 424 is arranged on the second positioning block 423, and the second arc-shaped groove 424 can be opposite to the first arc-shaped groove 311 and is attached to the corresponding outer peripheral surface of the port flange 110.

In this embodiment, the clamping member 420 is configured to include the square section 421 and the fan-shaped section 422 connected in series, so that the port flange 110 can be clamped well while having a large contact area with the port flange 110; and also occupies a small space, facilitating its arrangement on the spacer 300.

The specific working process of the tool of the embodiment is as follows;

manually clamping the two end port flanges 110 of the valve body 100 in the two first arc-shaped grooves 311 by an operator, lapping two clamping pieces 420 on the two end port flanges 110 to align the center port 120, then controlling a machine tool, driving the driving piece 400 to move in a direction away from the positioning piece 300 by the machine tool, so that the clamping pieces 420 and the positioning piece 300 clamp the valve body 100 as shown in fig. 1, and then starting to process the center port 120 in the valve body 100; after the opening 120 in the valve body 100 is machined, an operator holds the valve body 100 to control the machine tool, and the machine tool drives the driving member 400 to move toward the positioning member 300, as shown in fig. 4, so that the clamping member 420 is far away from the valve body 100, that is, the valve body 100 is loosened, and the valve body 100 can be taken down.

Example two

The present embodiment relates to a tool for machining a valve body middle opening, which has substantially the same structure as the tool provided in the first embodiment, except that, referring to fig. 5, the tool of the present embodiment further includes a screw 610 and a guide shaft 620; wherein, the screw 610 is rotatably arranged on the positioning member 300, and the screw 610 comprises a left-handed section and a right-handed section which are connected in series; one of the two first positioning blocks 310 is provided with a left-handed threaded hole, and the other one is provided with a right-handed threaded hole; the left-handed threaded hole is in threaded connection with the left-handed section, and the right-handed threaded hole is in threaded connection with the right-handed section; the guide shaft 620 is fixedly arranged on the positioning member 300 and is parallel to the screw 610; the two first positioning blocks 310 are respectively provided with a guide hole 350, and each guide hole 350 is slidably sleeved on the guide shaft 620.

That is, the two first positioning blocks 310 of the present embodiment are respectively screwed with the screw 610, and the screwing directions of the screw threads on the two first positioning blocks 310 are different; when the screw 610 is rotated, the two first positioning blocks 310 move in opposite directions, and the two first positioning blocks 310 can be moved closer to or away from each other by rotating the screw 610 in different directions.

In a specific structure, referring to fig. 5, in this embodiment, a screw hole 330 is formed on a side wall of the positioning member 300, the screw 610 is rotatably disposed in the screw hole 330, and a sliding groove 340 communicating with the screw hole 330 is disposed on an end surface of the positioning member 300; the first positioning blocks 310 are respectively and fixedly provided with a driving block extending into the screw hole 330 through the sliding groove 340, wherein a left-handed threaded hole is formed in the driving of one of the first positioning blocks 310, and a right-handed threaded hole is formed in the driving block of the other first positioning block 310.

The side wall of the positioning member 300 is provided with a guide hole 350 parallel to the screw hole 330, a guide shaft 620 is fixedly disposed in the guide hole 350, and the two first positioning blocks 310 are respectively provided with the guide holes 350 slidably fitted over the guide shaft 620 in the same manner as described above.

In this embodiment, by adopting the above structure, the distance between the two first positioning blocks 310 can be adjusted, that is, the tool can be applied to the processing of the valve body 100 with the same diameter of the port flange 110 but with a slightly different distance between the two port flanges 110, thereby improving the general performance of the tool. It should be noted that the distance between the two connection blocks 410 can also be adjusted correspondingly in the same manner as the two first positioning blocks 310; the distance between the two connecting blocks 410 may not be changed, and the width of the second arc-shaped groove 424 needs to be wider to meet the clamping requirements of different valve bodies 100.

In summary, the tool for machining the valve body middle opening of the present embodiment can be applied to valve bodies 100 of different sizes by adjusting the distance between the first positioning block 310 and the second positioning block 423, so that the versatility of the tool is improved.

EXAMPLE III

The embodiment relates to a frock is used in processing of valve body centre opening, its and embodiment one the frock have roughly the same structure, the difference lies in: referring to fig. 6, in the present embodiment, a backing plate 700 is disposed in the first arc-shaped groove 311, and the backing plate 700 is supported on the wall surface inside the first arc-shaped groove 311 via an elastic member; the backing plate 700 is used for being attached to the inner side surface of the corresponding port flange 110; the side of the backing plate 700 for engaging with the port flange 110 includes an inclined guide section 710 and an engaging section 720 in sequence toward the bottom of the first arc-shaped groove 311.

That is, in the tool of the present embodiment, after the port flange 110 of the valve body 100 is inserted into the first arc-shaped groove 311, specifically, the shim plate 700 abuts against the side surface of the port flange 110; and the elastic member pushes the packing 700 to increase the pressure of the packing 700 against the port flange 110 to increase the frictional force between the packing 700 and the port flange 110.

Referring to fig. 6, in the present embodiment, a plurality of spring 730 holes are formed on the wall surface of the first arc-shaped slot 311, the elastic member of the present embodiment is specifically a spring 730 inserted into each spring 730 hole, and one end of the spring 730 extending out of the spring 730 hole is fixedly connected to the back surface of the backing plate 700; and a guide hole 350 is formed on a wall surface of the first arc-shaped groove 311, and a guide rod 740 inserted into the guide hole 350 and slidable in the guide hole 350 is formed on a rear surface of the pad plate 700.

In this embodiment, the side of the backing plate 700 for engaging with the port flange 110 includes an inclined guiding section 710 and an engaging section 720 in sequence towards the direction close to the bottom surface of the first arc-shaped groove 311. The method specifically comprises the following steps: referring to fig. 6 and 7, after the port flange 110 is inserted into the first arc-shaped groove 311, the attaching section 720 is in contact with the side surface of the port flange 110; and the angled guide section 710 extends obliquely away from the port flange 110 in a direction away from the attachment section 720.

In this embodiment, by providing the backing plate 700, after the port flange 110 is inserted into the first arc-shaped groove 311, a friction force can be applied to the port flange 110 by the backing plate 700, so that the position of the port flange 110, that is, the position of the valve body 100 can be maintained without manual support.

Or, compared with the first embodiment, after the port flange 110 is inserted into the first arc-shaped groove 311, the position of the valve body 100 still needs to be manually maintained until the clamping piece 420 clamps the valve body 100; in the solution of this embodiment, after the port flange 110 is inserted into the first arc-shaped groove 311, the cushion plate 700 can apply sufficient friction force to the port flange 110 under the action of the elastic member, so that it is not necessary to manually hold the clamping member 420 to clamp the port flange, which is convenient for the worker to operate.

By arranging the inclined guide section 710 and the attaching section 720, the port flange 110 can be conveniently inserted into the first arc-shaped groove 311.

Compared with the case where the wall surfaces of the two first arc-shaped grooves 311 and the side surfaces of the two port flanges 110 are tightly fitted without providing the backing plate 700 and the elastic member, the tight fitting of the wall surfaces and the port flanges 110 may make the insertion of the port flanges 110 difficult.

Moreover, in the process of manually holding the valve body 100 to wait for the clamping member 420 to clamp the valve body 100, if a lathe button is touched by mistake, serious personal injury can be caused; the scheme of this embodiment owing to need not artifical support, just can avoid this kind of bodily injury too.

Example four

This embodiment relates to a frock is used in processing of valve body centre opening, its and embodiment three the frock have roughly the same structure, the difference lies in: in this embodiment, referring to fig. 8, two guiding portions 800 are disposed on a side of the positioning member 300 away from the base 200, the two guiding portions 800 are located at the rear sides of the two clamping members 420 in a one-to-one correspondence manner, the two guiding portions 800 are respectively provided with guiding slots, and the two guiding slots extend obliquely outward in a direction away from the positioning member 300; the two clamping members 420 are respectively and fixedly provided with a guide body, and each guide body is respectively provided with a guide block 426 extending into the corresponding guide groove.

That is, in the present embodiment, two guide portions 800 are respectively provided on the positioning member 300 corresponding to the two clamping members 420, and the two guide portions 800 can guide the rotation of the clamping members 420 on the connecting block 410. Or, the guide 800 can control the opening angle of the clamp 420 as the driving member 400 moves.

Specifically, referring to fig. 8 to 10, each of the guiding portions 800 is a guiding plate disposed on the positioning member 300, and the two guiding plates extend obliquely outward in a direction away from the positioning member 300. The guide groove is specifically a T-shaped groove 810 arranged on the inner side surface of the guide plate, and the length direction of the T-shaped groove 810 is parallel to the length direction of the guide plate. The guide body includes a connecting rod 425 disposed on the back of the clamping plate and hinged to the clamping plate, and the guide block 426 is disposed at the end of the connecting rod 425 and is slidable within the wide section of the T-shaped groove 810.

When the driving member 400 moves toward the positioning member 300, the clamping member 420 is pulled by the connecting rod 425 to move away from the positioning member 300 and expand outward, thereby releasing the valve body 100 and facilitating the removal of the valve body 100. In contrast, when the driving member 400 moves away from the positioning member 300, the clamping member 420 moves toward the positioning member 300 and contracts inward, thereby clamping the valve body 100.

Compared to the first embodiment, in the first embodiment, since the rotation of the clip 420 is not restricted, when clamping the valve body 100, an operator needs to hold the valve body 100 with one hand and put the two clips 420 on the two port flanges 110 of the valve body 100 with the other hand, which is troublesome.

In the embodiment, since the clamping member 420 can automatically expand or contract with the movement of the driving member 400, the valve body 100 is clamped or released; the operator does not need to apply any operation to the clamp 420, i.e. the solution of the present embodiment operates more conveniently.

EXAMPLE five

The present embodiment relates to a tool for processing a valve body center opening, which is substantially the same as the tool for processing a valve body center opening of the fourth embodiment, except that, referring to fig. 11, in the present embodiment, a mounting block 900 is disposed on a side of a positioning member 300 away from a base 200, a threaded hole is disposed on the mounting block 900, and a stud 910 is threadedly disposed in the threaded hole; the stud 910 has a first end surface extending out of the threaded hole, and the first end surface is used for being attached to the technical surface of the valve body 100; wherein the technical face is opposite to the central opening 120 of the valve body 100.

That is, in the solution of the present embodiment, a height-adjustable stud 910 is disposed on the positioning member 300, and an end surface of the stud 910 can be attached to a technical surface of the valve body 100, wherein the technical surface is opposite to the middle opening 120 of the valve body 100.

In this embodiment, the stud 910 is disposed so that the stud 910 is attached to the process surface of the valve body 100, thereby conveniently positioning the position of the center opening 120. The position of the middle opening 120 is located, that is, the middle opening 120 is perpendicular to the connecting disc of the machine tool.

Compared with the solution of the fourth embodiment, it needs to position the middle opening 120 manually, for example, by using a dial indicator on the machine tool to assist in positioning the middle opening 120. In the solution of this embodiment, since the end surface of the stud 910 is parallel to the surface of the connecting disc, and the process surface is perpendicular to the middle port 120, when the end surface of the stud 910 is attached to the process surface, that is, the surface middle port 120 is perpendicular to the surface of the connecting disc, the positioning of the middle port 120 is completed.

Moreover, in the solution of this embodiment, by providing the stud 910, the middle opening 120 can be automatically positioned, specifically, after the port flange 110 is inserted into the first arc-shaped groove 311, even if the end surface of the stud 910 is not completely attached to the process surface, or has a certain angle error, during the process of clamping the valve body 100 by the clamping member 420, the end surface of the stud 910 drives the process surface and the valve body 100 to rotate, so that the end surface of the stud 910 is attached to the process surface, thereby automatically completing the positioning of the middle opening 120.

In summary, in the solution of this embodiment, the positioning of the middle opening 120 can be automatically completed by arranging the stud 910 to match with the technical surface; by combining the third embodiment and the fourth embodiment, in the present embodiment, the worker only needs to insert the port flange 110 into the first arc-shaped groove 311, and the end surface of the stud 910 is substantially attached to the process surface, so that the valve body 100 can be disengaged, the machine tool is started, the machine tool drives the driving member 400 to move, the clamping and fixing of the valve body 100 can be completed, and the clamping efficiency of the valve body 100 can be greatly improved.

EXAMPLE six

The embodiment provides a device for processing a middle opening 120 of a valve body 100, which comprises a device body and further comprises a tool provided in any one of the first embodiment to the fifth embodiment; the equipment body is provided with a connecting disc, the base 200 is fixedly arranged on the connecting disc, the equipment body is provided with a driving rod, and the driving rod penetrates through the base 200 and is connected with the driving piece 400.

The driving rod may be, for example, a telescopic rod of a hydraulic bar provided on the device, and the telescopic rod can drive the driving member 400 to move away from or close to the positioning member 300 to clamp or release the valve body 100.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a frock is used in processing of valve body centre bore which characterized in that includes:

a base (200);

the positioning piece (300) is arranged on the base (200), a gap is formed between the positioning piece (300) and the base (200), and a first positioning part is arranged on one side, away from the base (200), of the positioning piece (300);

the driving piece (400) is arranged between the base (200) and the positioning piece (300), two connecting blocks (410) are arranged on the driving piece (400), the two connecting blocks (410) respectively penetrate through the positioning piece (300), and the driving piece (400) has a degree of freedom of movement close to or far away from the positioning piece (300);

the number of the clamping pieces (420) is two, and the two clamping pieces (420) are hinged with the two connecting blocks (410) in a one-to-one correspondence manner; the two clamping pieces (420) are respectively provided with a second positioning part; when the driving piece (400) is far away from the positioning piece (300), the driving piece drives two port flanges (110) of the valve body (100) clamped by the first positioning part corresponding to the second positioning part on the two clamping pieces (420).

2. The tool for machining the valve body middle opening according to claim 1, wherein the first positioning portion comprises two first positioning blocks (310), and the two first positioning blocks (310) are respectively arranged on the side face, away from the base (200), of the positioning piece (300);

the two first positioning blocks (310) are respectively provided with a first arc-shaped groove (311), and the bottom surface of each first arc-shaped groove (311) is configured to be attached to the outer peripheral surface of the corresponding port flange (110);

the two clamping pieces (420) are respectively provided with second arc-shaped grooves (424), and the two second arc-shaped grooves (424) can be opposite to the two first arc-shaped grooves (311) one by one and can be attached to the corresponding peripheral surfaces of the port flanges (110).

3. The tooling for machining the middle opening of the valve body according to claim 2, wherein the two clamping pieces (420) respectively comprise a square section (421) and a fan-shaped section (422); one end of the square section (421) is hinged with the corresponding connecting block (410), and the small end of the fan-shaped section (422) is connected with the other end of the square section (421);

an arc-shaped second positioning block (423) is arranged on the inner side face of the fan-shaped section (422), and the second arc-shaped groove (424) is formed in the second positioning block (423).

4. The tool for machining the valve body middle opening according to claim 2, further comprising a screw (610) and a guide shaft (620); the screw (610) is rotatably arranged on the positioning piece (300), and the screw (610) comprises a left-handed section and a right-handed section which are connected in series;

one of the two first positioning blocks (310) is provided with a left-handed threaded hole, and the other one is provided with a right-handed threaded hole; the left-handed threaded hole is in threaded connection with the left-handed section, and the right-handed threaded hole is in threaded connection with the right-handed section;

the guide shaft (620) is fixedly arranged on the positioning piece (300) and is parallel to the screw rod (610); two first locating blocks (310) are respectively provided with a guide hole (350), and each guide hole (350) is respectively sleeved on the guide shaft (620) in a sliding manner.

5. The tool for processing the valve body middle opening according to claim 2, wherein a backing plate (700) is arranged in the first arc-shaped groove (311), and the backing plate (700) is supported on the wall surface of the inner side of the first arc-shaped groove (311) through an elastic piece; the backing plate (700) is used for being attached to the inner side face of the corresponding port flange (110);

and towards the direction close to the bottom surface of the first arc-shaped groove (311), the side surface, which is used for being attached to the port flange (110), of the backing plate (700) sequentially comprises an inclined guide section (710) and an attaching section (720).

6. The tool for processing the valve body middle opening according to claim 1, wherein two guide portions (800) are arranged on one side of the positioning member (300) away from the base (200), the two guide portions (800) are correspondingly arranged on the rear sides of the two clamping members (420), guide grooves are respectively arranged on the two guide portions (800), and the two guide grooves extend outwards in an oblique direction respectively in the direction away from the positioning member (300);

and guide bodies are fixedly arranged on the two clamping pieces (420) respectively, and each guide body is provided with a guide block (426) extending into the corresponding guide groove.

7. The tool for processing the valve body middle opening according to claim 1, wherein a mounting block (900) is arranged on one side of the positioning piece (300) away from the base (200), a threaded hole is formed in the mounting block (900), and a stud (910) is screwed in the threaded hole; the stud (910) is provided with a first end surface extending out of the threaded hole, and the first end surface is used for being attached to a technical surface of the valve body (100); wherein the technical face is opposite to the middle opening (120) of the valve body (100).

8. The equipment for processing the valve body middle opening comprises an equipment body and is characterized by further comprising a tool for processing the valve body middle opening according to any one of claims 1 to 7;

the equipment body is provided with a connecting disc, the base (200) is fixedly arranged on the connecting disc, the equipment body is provided with a driving rod, and the driving rod penetrates through the base (200) and is connected with the driving piece (400).