A universal tool for machining eccentric valves

Abstract

A universal tooling for processing an eccentric valve includes a base, which is a structure of a bottom plate plus two vertical plates, a support plate is provided between the two vertical plates through a positioning shaft, the positioning shaft is fixed to the base through a fastener, the support plate can rotate around the positioning shaft, and a transmission device I and a transmission device II are installed at the bottom of the support plate, the transmission device I drives the support plate to move linearly relative to the support plate, and the transmission device II drives the support plate to make a rotary motion, and the center of the positioning shaft is the intersection of the rotation center of the base and the contact surface between the support plate and the support plate. The beneficial effect of the present invention is that for different calibers, only the positioning ring needs to be replaced to achieve positioning of different calibers, avoiding the continuous production of tooling due to different calibers or changes in design dimensions, and frequently borrowing, returning and replacing tooling, thereby solving the problems of waste of tooling material resources, efficiency affected by borrowing, returning and replacing tooling, and inconvenience in tooling management.

Description

Technical Field

[0001] The invention relates to a universal tooling for processing eccentric valves, in particular to butterfly valves of different specifications, and different eccentricities can be freely adjusted to realize universal processing of multiple calibers and multiple specifications. Background Art

[0002] At present, the tooling for processing eccentric valves is such that the angle eccentricity α of the valve is directly made on the inclined base, and the size eccentricity Eg of the valve is directly made on the support plate. When processing the valve, the inclined base and support plate with corresponding eccentricity must be selected for combination and processing. If the eccentricity of valves with the same specifications is changed, the tooling must be redesigned and produced. Valves of different specifications need to be reselected for tooling. In particular, for the processing of single-piece and small-batch products, the tooling needs to be replaced frequently. The tooling has poor versatility and a large number of tooling needs to be produced to meet the ever-expanding design requirements, which not only affects production efficiency but also brings trouble and inconvenience to the subsequent borrowing and management of tooling, and occupies limited production area resources. Summary of the invention

[0003] In order to solve the deficiencies in the prior art, the present invention provides a universal tooling for machining an eccentric valve.

[0004] The technical solution of the present invention is a universal tooling for processing an eccentric valve, comprising a base, wherein the base is a structure of a bottom plate plus two vertical plates, a support plate is provided between the two vertical plates through a positioning shaft, the positioning shaft is fixed to the base through a fastener, the support plate can rotate around the positioning shaft, an arc groove is opened on the two vertical plates with the positioning shaft as the center, a limited position shaft is matched in the arc groove, one end of the limited position shaft is fixed on the support plate, and the other end is connected to the fastener, the support plate is fixed to the base through the fastener, a pointer I is provided on the limited position shaft, a scale I is provided on the edge of the arc groove, the relative offset of the pointer I and the scale I is an angle eccentricity α, a guide rail is provided on the support plate, the guide rail is matched with a support plate, and the support plate It can move freely along the guide rail, the pallet and the support plate are fixed by fasteners, a positioning boss is provided on the upper end of the pallet, a positioning boss is matched with a positioning ring, the workpiece is fixed on the pallet by the positioning ring, fasteners and pressure plate, and a transmission device I and a transmission device II are installed at the bottom of the support plate. The transmission device I drives the pallet to move linearly relative to the support plate, and the transmission device II drives the support plate to rotate. A pointer II is provided at the center of the support plate, a groove is provided at the position where the pallet moves linearly relative to the pointer II, and a scale II is provided on the edge of the groove. The relative offset of the pointer II and the scale II is the dimensional eccentricity Eg, and the center of the positioning axis is the intersection of the rotation center of the base and the contact surface of the support plate and the pallet.

[0005] Preferably, the transmission device I is a screw transmission mechanism, including a screw and a screw seat. The bottom end of the screw cooperates with the axial hole on the support plate, and the head end is limited in another axial hole of the support plate by a pressure cover. The head end of the screw is connected to the handwheel I, and the screw seat passes through a through hole provided on the support plate and is fixed to the bottom of the support plate by fasteners.

[0006] Preferably, the transmission device II includes a universal joint and a gear box. The universal joint is connected to the bottom of the support plate, the gear box is fixed on the base, the threaded end of the universal joint cooperates with the internal threaded end of the gear box, the transmission shaft of the gear box is connected to the handwheel II, and the transmission shaft of the gear box is perpendicular to the moving direction of the universal joint.

[0007] Preferably, the transmission device II is located on the center line of the base.

[0008] The beneficial effects of the present invention are that the tooling has a compact structure, flexible and simple operation, and good versatility. According to different design requirements, after the dimensional eccentricity and angular eccentricity are determined, it is only necessary to operate the corresponding mechanism through the scale reading to pre-adjust the dimensional eccentricity and angular eccentricity to the design parameters immediately. For different calibers, it is only necessary to replace the positioning ring to achieve the positioning of different calibers, thereby avoiding the continuous production of tooling due to different calibers or changes in design dimensions, and frequently borrowing and returning and replacing tooling, thereby solving the problems of waste of tooling material resources, efficiency affected by tooling borrowing and returning, and replacement, and inconvenience in tooling management. Through the use of this tooling, the factory has improved efficiency, saved tooling resources, saved tooling costs and management costs in the processing of eccentric valves, improved the versatility of tooling, and brought considerable benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural side view of the present invention;

[0010] Figure 2 yes Figure 1 Cross-sectional view of the middle AA part;

[0011] Figure 3 It is a top view of the structure of the present invention.

[0012] In the figure: 1. Base; 2. Support plate; 3. Positioning shaft; 4. Limiting shaft; 5. Pointer I; 6. Scale I; 7. Support plate; 8. Positioning ring; 9. Pressure plate; 10. Workpiece; 11. Pointer II; 12. Scale II; 13. Screw; 14. Screw seat; 15. Pressure cover; 16. Handwheel I; 17. Universal joint; 18. Gear box; 19. Handwheel II. DETAILED DESCRIPTION

[0013] As shown in the figure, a universal tooling for processing an eccentric valve includes a base 1, which is a structure of a bottom plate plus two vertical plates. A support plate 2 is provided between the two vertical plates through a positioning shaft 3. The positioning shaft 3 is fixed to the base 1 through a fastener. The support plate 2 can rotate around the positioning shaft 3. The two vertical plates have an arc groove centered on the positioning shaft 3. A limit shaft 4 is matched in the arc groove. One end of the limit shaft 4 is fixed on the support plate 2, and the other end is connected to the fastener. The support plate 2 is fixed to the base 2 through the fastener. A pointer Ⅰ5 is provided on the limit shaft 4, and a scale Ⅰ6 is provided on the edge of the arc groove. The relative offset of the pointer Ⅰ5 and the scale Ⅰ6 is an angle eccentricity α. A guide rail is provided on the support plate 2, and a support plate 7 is matched on the guide rail. The support plate 7 can be rotated along The guide rail moves freely, and the support plate 7 is fixed to the support plate 2 by fasteners. A positioning boss is provided at the upper end of the support plate 7, and a positioning ring 8 is matched on the positioning boss. The workpiece 40 is fixed to the support plate 7 by the positioning ring 8, fasteners, and a pressure plate 9. A transmission device I and a transmission device II are installed at the bottom of the support plate 2. The transmission device I drives the support plate 7 to move linearly relative to the support plate 2. The transmission device I is a screw transmission mechanism, including a screw 13 and a screw seat 14. The bottom end of the screw 13 cooperates with the axial hole on the support plate 2, and the head end is limited in the other axial hole of the support plate 2 by a pressure cover 15. The head end of the screw 13 is connected to the handwheel I16, and the screw seat 14 passes through the through hole provided on the support plate 2 and is fixed to the bottom of the support plate 9 by fasteners. Transmission device II drives support plate 2 to rotate. Transmission device II includes universal joint 17 and gear box 18. Universal joint 17 is connected to the bottom of support plate 2. Gear box 18 is fixed on base 1. The threaded end of universal joint 17 cooperates with the internal threaded end of gear box 18. The transmission shaft of gear box 18 is connected to hand wheel II 19. The transmission shaft of gear box 18 is perpendicular to the moving direction of universal joint 17. Transmission device II is located on the center line of base 1. Pointer II 11 is provided at the center of support plate 2. A groove is provided at the position where support plate 7 moves linearly relative to pointer II 11. A scale II 12 is provided on the edge of the groove. The relative offset between pointer II 11 and scale II 12 is the dimensional eccentricity Eg. The center of positioning shaft 3 is the intersection of the rotation center of base 1 and the contact surface between support plate 2 and support plate 7.

[0014] According to different design requirements, after determining the dimensional eccentricity and angular eccentricity, it is only necessary to operate the corresponding mechanism to read the scale and adjust the dimensional eccentricity and angular eccentricity to the design parameters in advance. For different calibers, it is only necessary to replace the positioning ring to achieve the positioning of different calibers, avoiding the continuous production of tooling due to different calibers or changes in design dimensions, and frequently borrowing, returning and replacing tooling, solving the problems of waste of tooling material resources, efficiency affected by tooling borrowing, returning and replacing, and inconvenience in tooling management.

[0015] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A universal tool for processing an eccentric valve, comprising a base, It is characterized in that The base is a structure of a bottom plate plus two vertical plates, a support plate is provided between the two vertical plates through a positioning shaft, the positioning shaft is fixed to the base through a fastener, the support plate can rotate around the positioning shaft, the two vertical plates are provided with an arc groove with the positioning shaft as the center, a limiting shaft is matched in the arc groove, one end of the limiting shaft is fixed on the support plate, and the other end is connected to the fastener, the support plate is fixed to the base through the fastener, a pointer I is provided on the limiting shaft, a scale I is provided on the edge of the arc groove, the relative offset of the pointer I and the scale I is an angular eccentricity α, a guide rail is provided on the support plate, the guide rail is matched with a support plate, the support plate can move freely along the guide rail, and the support plate and The support plate is fixed by fasteners, and a positioning boss is provided at the upper end of the support plate, and a positioning ring is matched on the positioning boss. The workpiece is fixed to the support plate by the positioning ring, fasteners and pressure plate. Transmission device I and transmission device II are installed at the bottom of the support plate. The transmission device I drives the support plate to move linearly relative to the support plate, and the transmission device II drives the support plate to rotate. A pointer II is provided at the center of the support plate, and a groove is provided at the position where the support plate moves linearly relative to the pointer II. A scale II is provided on the edge of the groove. The relative offset of the pointer II and the scale II is the dimensional eccentricity Eg, and the center of the positioning axis is the intersection of the rotation center of the base and the contact surface of the support plate and the support plate.

2. A universal tool for processing an eccentric valve as claimed in claim 1, It is characterized in that The transmission device I is a screw transmission mechanism, including a screw and a screw seat. The bottom end of the screw cooperates with the axial hole on the support plate, and the head end is limited in the other axial hole of the support plate by a pressure cover. The head end of the screw is connected to the handwheel I, and the screw seat passes through the through hole provided on the support plate and is fixed to the bottom of the support plate by fasteners.

3. A universal tool for processing an eccentric valve as claimed in claim 2, It is characterized in that The transmission device II includes a universal joint and a gear box. The universal joint is connected to the bottom of the support plate, and the gear box is fixed on the base. The threaded end of the universal joint cooperates with the internal threaded end of the gear box. The transmission shaft of the gear box is connected to the handwheel II, and the transmission shaft of the gear box is perpendicular to the moving direction of the universal joint.

4. A universal tool for processing an eccentric valve as claimed in claim 3, It is characterized in that The transmission device II is located on the center line of the base.

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