CN211661744U

CN211661744U - Three eccentric butterfly valve clamping platform

Info

Publication number: CN211661744U
Application number: CN201922471734.9U
Authority: CN
Inventors: 杨剑波; 董万兵; 朱骁骐
Original assignee: Wuxi Hejia Instrumentation Co ltd
Current assignee: Wuxi Hejia Instrumentation Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-13
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a three eccentric butterfly valve press from both sides dress platform, including the wedge base that sets gradually from bottom to top, electronic turning round, wedge footstock and clamping dish, the bottom detachable of electronic turning round installs to the last inclined plane of wedge base on, and the bottom detachable of wedge footstock installs to the upper surface of electronic turning round, and electronic turning round drive wedge footstock rotates around the axis, and clamping dish detachable is fixed to the last inclined plane of wedge footstock, and wherein, the cross-section contained angle of wedge base and wedge footstock is the same. Through this press from both sides dress platform, can guarantee that the cutter keeps vertical, can realize treating the continuous abrasive machining of machined part through the coordinated design of electronic turning round and cutter for the processing step programming is simplified, realizes treating the continuous high accuracy high-efficient processing of machined part, satisfies sealed demand, reaches six grades of sealed levels.

Description

Three eccentric butterfly valve clamping platform

Technical Field

The utility model relates to a machine tooling field especially relates to three eccentric butterfly valve's sealed processing technique firmly.

Background

The triple eccentric butterfly valve is widely applied to the industrial fields with extremely high requirements on flow control and sealing property, such as chemical industry, steel, power generation and the like.

The existing three-eccentric hard sealing processing basically has two processing modes. One is to use a numerically controlled milling machine to perform point tracing type machining. Another is to use a bevel plate for grinding as shown in fig. 1. However, the above method has the following problems: 1. machining discontinuous tool connecting marks; 2. the surface quality of the processed finished product does not reach the standard, the roughness is high, burrs exist, and six-level leakage cannot be met; 3. the original grinding process is limited by the rotation speed of the workpiece, and the milling process is slow in cutting speed due to the copying stepping process. Results in long processing times; 4. the original clamp is difficult to position, needs relatively rich experience, consumes time and labor and is difficult to achieve accurate clamping and positioning.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a three eccentric butterfly valve clamping platform which can solve the above-mentioned related problems.

The purpose of the utility model is realized by adopting the following technical scheme:

the utility model provides a three eccentric butterfly valve press from both sides dress platform, it includes wedge base, electronic turn round, wedge footstock and clamping dish that sets gradually from bottom to top to press from both sides dress platform, the bottom detachable of electronic turn round install extremely on the last inclined plane of wedge base, the bottom detachable of wedge footstock install extremely the upper surface of electronic turn round, the drive of electronic turn round the wedge footstock rotates around the axis, clamping dish detachable is fixed extremely the last inclined plane of wedge footstock, wherein, the wedge base with the cross-section contained angle of wedge footstock is the same.

Preferably, the electric rotary head comprises a rotary shaft box, a transfer disc, a motor box and a side plate; the motor box is arranged on the side face of the rotating shaft box and drives a transmission system in the rotating shaft box, the side plate is arranged on the back face of the rotating shaft box, and the adapter plate is arranged above the rotating shaft box in a rotationally driven mode.

Preferably, the rotating shaft box comprises a rectangular base and a cylindrical table which are integrally formed, the cylindrical table is arranged in a protruding mode upwards from the middle of the rectangular base, a transmission cavity is formed in the rectangular base, and a rotating shaft cavity is formed in the middle of the cylindrical table in a downward penetrating mode; the adapter plate is a circular adapter plate body with an adapter plate hole, a plurality of adapter plate connecting holes are uniformly distributed near the adapter plate hole, a plurality of T-shaped adapter grooves are uniformly distributed on the upper surface of the circular adapter plate body, and the T-shaped adapter grooves and the adapter plate connecting holes are arranged at intervals; the switching disc is connected with the rotating shaft in the rotating shaft cavity through the rotating disc connecting hole.

Preferably, the wedge-shaped top seat is integrally a circular wedge-shaped block with a circular upper inclined plane, the diameter of the bottom surface of the wedge-shaped top seat is matched with the diameter of the circular turntable body, a top seat lower positioning hole and a top seat lower bolt hole are formed in the bottom surface of the wedge-shaped top seat, and a top seat upper positioning hole and a top seat upper bolt hole are formed in the circular upper inclined plane; the wedge-shaped top seat is connected to the circular turntable body in an adjustable mode through a T-shaped head bolt.

Preferably, the chuck body of the clamping chuck is radially provided with clamping bolt holes, and the clamping chuck is provided with a plurality of clamping positioning pin holes and chuck connecting holes.

Compared with the prior art, the beneficial effects of the utility model reside in that: through this press from both sides dress platform, can guarantee that the cutter keeps vertical, can realize treating the continuous abrasive machining of machined part through the coordinated design of electronic turning round and cutter for the processing step programming is simplified, realizes treating the continuous high accuracy high-efficient processing of machined part, satisfies sealed demand, reaches six grades of sealed levels.

Drawings

FIG. 1 is a schematic view of a prior art bevel plate grinding machine;

FIG. 2 is a schematic structural view of a triple offset butterfly valve clamping platform according to the present application;

FIG. 3 is a side view of the clamping platform;

FIG. 4 is an exploded view of a triple offset butterfly valve clamping platform;

FIG. 5 is a schematic view of the installation of a triple offset butterfly valve on a clamping platform;

FIG. 6 is an initial schematic view of the installation of a workpiece to be machined on the clamping platform;

fig. 7 is a schematic view of a state after the workpiece to be machined rotates by 180 degrees on the clamping platform.

In the figure:

10. a wedge-shaped base; 11. a rectangular wedge block; 12. a rectangular upper inclined plane;

20. electrically rotating the head; 21. a pivot housing; 211. a rectangular base; 212. a cylinder table; 213. a transmission cavity; 214. a rotating shaft cavity; 22. a switching disk; 221. a circular turntable body; 222. a turntable hole; 223. a turntable connecting hole; 224. a T-shaped transfer slot; 23. a motor case; 24. a side plate;

30. a wedge-shaped top seat; 31. a circular wedge block; 32. a circular upper bevel;

40. a clamping disc is arranged; 41. clamping bolt holes; 42. clamping the positioning pin hole; 43. a chuck connecting hole;

50. an auxiliary carrying disc.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 2-5, the clamping platform for the triple eccentric butterfly valve comprises a wedge-shaped base 10, an electric rotary head 20, a wedge-shaped top seat 30 and a clamping disc 40 which are arranged from bottom to top in sequence, wherein a workpiece to be processed is clamped on the clamping disc 40 and rotates along with the wedge-shaped top seat 30 under the driving of the electric rotary head 20. In order to meet the requirements of different workpieces, the clamping platform can further comprise auxiliary loading discs 50, and auxiliary connecting holes are uniformly distributed in the auxiliary loading discs 50.

Arrangement relation: the bottom of electronic bull stick 20 detachable install to on the last inclined plane of wedge base 10, the bottom detachable of wedge footstock 30 install extremely the upper surface of electronic bull stick 20, electronic bull stick 20 drive wedge footstock 30 rotates around the axis, dress chuck 40 detachable is fixed to the last inclined plane of wedge footstock 30, wherein, wedge base 10 with the cross-sectional contained angle of wedge footstock 30 is the same.

Wedge-shaped base

The wedge-shaped base 10 is integrally a rectangular wedge-shaped block 11 with a rectangular upper inclined surface 12, and the rectangular upper inclined surface 12 is provided with a lower positioning pin hole and a lower bolt hole for positioning and bolt connection of the electric rotary head 20 and the positioning pin of the wedge-shaped base 10.

Electric rotary head

The electric rotor 20 includes a rotor case 21, a rotor disc 22, a motor case 23, and a side plate 24. Arrangement relation: the motor housing 23 is disposed at a side of the pivot housing 21 and drives a transmission system in the pivot housing 21, the side plate 24 is disposed at a rear surface of the pivot housing 21, and the adapter 22 is rotatably driven above the pivot housing 21.

The rotating shaft box 21 includes a rectangular base 211 and a cylindrical table 212 which are integrally formed, the cylindrical table 212 is arranged to protrude upwards from the middle of the rectangular base 211, a transmission cavity 213 is formed in the rectangular base 211, and a rotating shaft cavity 214 is formed in the middle of the cylindrical table 212 to penetrate downwards.

The adapter plate 22 is a circular adapter plate body 221 with an adapter plate hole 222, a plurality of adapter plate connecting holes 223 are uniformly distributed near the adapter plate hole 222, a plurality of T-shaped adapter grooves 224 are uniformly distributed on the upper surface of the circular adapter plate body 221, and the T-shaped adapter grooves 224 and the adapter plate connecting holes 223 are arranged at intervals; the adapter plate 22 is connected with the rotating shaft in the rotating shaft cavity 214 through the rotating plate connecting hole 223.

The installation of the pivot box 21 of the electric swivel 20, the motor driving component in the motor box 23 and the transmission component can be realized by adopting the existing installation mode, the stepping motor is preferably driven, and the corner monitoring control is adopted to improve the accurate supply angle.

Wedge-shaped top seat

The wedge-shaped top seat 30 is integrally a circular wedge block 31 with a circular upper inclined plane 32, the diameter of the bottom surface of the wedge-shaped top seat 30 is matched with that of the circular turntable body 221, and a top seat lower positioning hole and a top seat lower bolt hole are formed in the bottom surface of the wedge-shaped top seat 30 and used for positioning and bolt connection of the wedge-shaped top seat 30 and the electric rotary head 20 through a positioning pin. A top seat upper positioning hole and a top seat upper bolt hole are formed in the circular upper inclined plane 32; the wedge-shaped top seat 30 is adjustably connected to the circular turntable body 221 through a T-head bolt.

Clamping plate

The chuck body of the chuck 40 is radially provided with clamping bolt holes 41, and the chuck 40 is provided with a plurality of clamping positioning pin holes 42 and chuck connecting holes 43. Thus, the workpiece to be machined can be positioned and connected to the clamping plate 40 through its own positioning hole and connecting hole.

Furthermore, a scale or a scale is arranged on one side of the clamping bolt hole 41, the clamping positioning pin hole 42 and/or the chuck connecting hole 43 and is used for accurately positioning and clamping a workpiece to be machined, so that a sealing pair component of a triple offset butterfly valve with fixed eccentricity can be obtained, the positioning is accurate, the tool setting is not needed, and a part meeting the design requirement can be obtained by rotating the workbench.

Or may be re-mounted to the upper surface of the chucking plate 40 by the auxiliary carrier plate 50. Wherein, the auxiliary boat 50 can adopt a simple clamping device.

Aiming at the processing of the triple eccentric butterfly valve, the included angle alpha of the wedge-shaped base 10 is equal to the included angle beta of the wedge-shaped footstock 30, and the two included angles are equal to half of the eccentric angle of the triple eccentric butterfly valve.

Processing method

Referring to fig. 6 and 7, taking the machining of the disc-shaped or plate-shaped member as an example, referring to fig. 6 in an initial state, the electric rotary head 20 is adjusted to make the wedge-shaped base 10 and the wedge-shaped top seat 30 oppositely arranged at an included angle, so that the clamping disc 40 is in a horizontal state, in this example, the auxiliary carrying disc 50 is not adopted, and the disc-shaped or plate-shaped member is directly clamped and fixed on the upper surface of the clamping disc 40 in a horizontal manner.

The tool, for example a grinding head, is vertically arranged on the side of the disc-shaped or plate-shaped member, and the workpiece to be machined horizontally rotates through 180 degrees by the stepping continuous rotation of the electric rotary head 20, so that the workpiece to be machined is inclined to the sum of the included angle between the wedge-shaped base 10 and the included angle between the wedge-shaped footstock 30. Through the rotation adjustment of the electric rotary head 20 and the coordinated rotation of the cutter, but the cutter keeps a vertical state, the continuous and stable processing of the workpiece to be processed is realized, and the preset grinding effect is achieved.

To sum up, the technical characteristics and the effect of this application are: the special tool clamp is used, the development is strictly carried out according to the design principle of the triple eccentric butterfly valve, a machined surface is always perpendicular to a horizontal plane, the clamping is simple and convenient, and the positioning is accurate. The shapes of the processed valve plate and the sealing ring are completely consistent, the matching is good, and the assembly relation is simplified. Secondly, a four-axis linkage numerical control milling machine is used, a milling cutter is changed into a grinding head, the grinding head rotates at a high speed, a workpiece to be machined slowly rotates on a clamp along with a rotating electric head, and continuous machining is carried out without interruption. And thirdly, the calculation of the height of the sealing plane is added in the numerical control program, and the grinding head moves relative to the initial plane according to the length of the processed surface during processing, so that the bottom edge of the grinding head is flush with the bottom edge of the processed workpiece, and the processing precision and the surface quality are ensured. The functions of feeding and retracting are optimized in the numerical control program, no tool mark is connected and no tool end is broken, the quality of a sealing surface is ensured, and the requirement of six-level leakage is met. The grinding head rotates at high speed, and the grinding plane is always perpendicular to the horizontal plane, so that the grinding head can be formed once, and the efficiency is high.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a three eccentric butterfly valve presss from both sides dress platform which characterized in that: press from both sides dress platform and include wedge base (10), electronic turn round (20), wedge footstock (30) and clamping dish (40) that set gradually from bottom to top, the bottom detachable of electronic turn round (20) install extremely on the last inclined plane of wedge base (10), the bottom detachable of wedge footstock (30) install extremely the upper surface of electronic turn round (20), electronic turn round (20) drive wedge footstock (30) rotate around the axis, clamping dish (40) detachable is fixed extremely the last inclined plane of wedge footstock (30), wherein, wedge base (10) with the cross-section contained angle of wedge footstock (30) is the same.

2. The clamping platform of claim 1, wherein: the wedge-shaped base (10) is integrally a rectangular wedge-shaped block (11) with a rectangular upper inclined surface (12), and a lower positioning pin hole and a lower bolt hole are formed in the rectangular upper inclined surface (12).

3. The clamping platform of claim 1, wherein: the electric rotary head (20) comprises a rotary shaft box (21), a transfer disc (22), a motor box (23) and a side plate (24); the motor box (23) is arranged on the side face of the rotating shaft box (21) and drives a transmission system in the rotating shaft box (21), the side plate (24) is arranged on the back face of the rotating shaft box (21), and the adapter disc (22) is arranged above the rotating shaft box (21) in a rotationally driven mode.

4. The clamping platform of claim 3, wherein: the rotating shaft box (21) comprises a rectangular base (211) and a cylindrical table (212) which are integrally formed, the cylindrical table (212) is arranged in a protruding mode upwards from the middle of the rectangular base (211), a transmission cavity (213) is formed in the rectangular base (211), and a rotating shaft cavity (214) penetrates through the middle of the cylindrical table (212) downwards; the adapter plate (22) is a circular adapter plate body (221) with an adapter plate hole (222), a plurality of adapter plate connecting holes (223) are uniformly formed in the position close to the adapter plate hole (222), a plurality of T-shaped adapter grooves (224) are uniformly formed in the upper surface of the circular adapter plate body (221), and the T-shaped adapter grooves (224) and the adapter plate connecting holes (223) are arranged at intervals; the adapter plate (22) is connected with a rotating shaft in the rotating shaft cavity (214) through the rotating plate connecting hole (223).

5. The clamping platform of claim 4, wherein: the wedge-shaped top seat (30) is integrally a circular wedge-shaped block (31) with a circular upper inclined plane (32), the diameter of the bottom surface of the wedge-shaped top seat (30) is matched with that of the circular turntable body (221), a top seat lower positioning hole and a top seat lower bolt hole are formed in the bottom surface of the wedge-shaped top seat (30), and a top seat upper positioning hole and a top seat upper bolt hole are formed in the circular upper inclined plane (32); the wedge-shaped footstock (30) is adjustably connected to the circular turntable body (221) through a T-shaped head bolt.

6. The clamping platform of claim 1, wherein: the clamping device is characterized in that clamping bolt holes (41) are radially formed in a disc body of the clamping disc (40), and a plurality of clamping positioning pin holes (42) and clamping disc connecting holes (43) are formed in the clamping disc (40).

7. The clamping platform of claim 1, wherein: the clamping platform further comprises auxiliary carrying discs (50), wherein auxiliary connecting holes are uniformly distributed in the auxiliary carrying discs (50) and used for being connected with workpieces to be machined.