Special machine for machining upper flange end of fluorine-lined ball valve

Abstract

The utility model relates to a special machine for processing an upper flange end of a fluorine-lined ball valve, which comprises a station switching turntable, a feeding station, a turning station, a boring station and a tapping station, the feeding station, the turning station, the boring station and the tapping station are circumferentially and uniformly distributed on the peripheral side of the station switching turntable, the turning station is provided with turning equipment, the boring station is provided with boring equipment, and the tapping station is provided with tapping equipment. Four ball valve clamps which are evenly distributed in the circumferential direction are arranged on the top of the station switching rotary disc, each ball valve clamp comprises a positioning supporting block which is fixed to the top of the station switching rotary disc and makes contact with the end face of the liquid outlet end of the valve body, and a pressing plate is arranged over the positioning supporting blocks. The pressing plate is driven by a pressing oil cylinder right above the pressing plate to press the end face of the liquid inlet end of the valve body downwards. A valve body of a ball valve is clamped and positioned at a time through the ball valve clamp, then the valve body is driven by the station switching rotary disc to sequentially move to the turning station, the boring station and the tapping station to be machined, repeated clamping and positioning in each machining procedure are not needed, operation is easy and convenient, and the working efficiency and the machining precision are effectively improved.

Description

Technical Field

[0001] The utility model relates to a special machine for processing the upper flange end of a fluorine-lined ball valve. Background Art

[0002] A ball valve is a valve whose ball is driven by the valve stem and rotates around the axis of the ball valve. Ball valves are mainly used to cut off, distribute and change the flow direction of the medium in the pipeline. It can be closed tightly by simply rotating 90 degrees and applying a very small torque.

[0003] like Figure 6 As shown in the figure, the ball valve body typically has a liquid inlet end A, a liquid outlet end B, and a flange end C to facilitate the passage of the valve stem. After the ball valve body is cast, the end face D of the flange end needs to be turned, and then the flange hole E on the flange end face needs to be bored and tapped. However, because the processing equipment for each process is different, the valve body needs to be disassembled and re-clamped and positioned after each process is completed. This multiple clamping and positioning not only increases the workload and reduces processing efficiency, but also affects the processing accuracy. Utility Model Content

[0004] The utility model aims to improve the problems existing in the prior art, that is, the technical problem to be solved by the utility model is to provide a special machine for processing the flange end of a fluorine-lined ball valve.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a special machine for processing the flange end of a fluorine-lined ball valve, including a workstation switching turntable, a loading station, a turning station, a boring station and a tapping station evenly distributed on the outer peripheral side of the workstation switching turntable in a counterclockwise direction. The turning station is provided with a turning device, the boring station is provided with a boring device, and the tapping station is provided with a tapping device. Four ball valve fixtures evenly distributed on the circumference are provided on the top of the workstation switching turntable, and each ball valve fixture includes a positioning support block fixed on the top of the workstation switching turntable and in contact with the liquid outlet end face of the valve body. A pressure plate is provided directly above the positioning support block, and the pressure plate is driven by the downward pressure cylinder directly above it to press down the liquid inlet end face of the valve body.

[0006] Furthermore, the positioning support block is provided with an inner three-jaw chuck for extending into the interior of the liquid outlet end of the valve body.

[0007] Furthermore, an L-shaped block fixed to the top of the workstation switching turntable is provided on the side of the positioning support block, and the vertical edge of the L-shaped block is screwed with a horizontally set top screw, which is used to press against the outer peripheral side of the flange end of the valve body.

[0008] Furthermore, the piston rod of the downward pressure cylinder extends downward and a horizontal connecting rod is fixed to the end. The horizontal connecting rod extends radially along the workstation switching turntable, and the end of the horizontal connecting rod away from the axis of the workstation switching turntable is connected to the top of the pressure plate.

[0009] Furthermore, a vertically arranged downward pressure limit rod is fixed to one end of the horizontal connecting rod close to the axis of the work station switching turntable, and a vertically arranged limit adjustment bolt is screwed to the lower end of the downward pressure limit rod. The bolt head of the limit adjustment bolt faces downward and is used to contact the top of the work station switching turntable to achieve downward pressure limit.

[0010] Furthermore, a square frame is provided directly above the work station switching turntable, and the middle parts of the four sides of the square frame correspond to the positions of the loading station, turning station, boring station and tapping station respectively. The bottom of the square frame is connected to the work station switching turntable through vertical support rods; the downward pressure cylinder is vertically installed in the middle part of the side of the square frame.

[0011] Furthermore, a vertically arranged driving shaft is connected to the middle of the workstation switching turntable, and the driving shaft is driven to rotate by a motor assembly.

[0012] Compared with the existing technology, the utility model has the following effects: the utility model has a reasonable structural design, and the valve body of the ball valve is clamped and positioned once by the ball valve clamp, and then the valve body is driven to move to the turning station, boring station and tapping station in sequence for processing by relying on the station switching turntable. There is no need for repeated clamping and positioning for each processing step. The operation is simple and convenient, and the work efficiency and processing accuracy are effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic top view of the structure of an embodiment of the utility model;

[0014] Figure 2 This is a schematic diagram of a partial top view of the structure in the embodiment of the utility model Figure 1 ;

[0015] Figure 3 This is a schematic diagram of a partial top view of the structure in the embodiment of the utility model Figure 2 ;

[0016] Figure 4 yes Figure 1 AA section structure diagram in;

[0017] Figure 5 yes Figure 1 Schematic diagram of BB cross-section structure in;

[0018] Figure 6 It is a schematic diagram of the three-dimensional structure of the ball valve body. DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0020] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0021] like Figures 1 to 5 As shown, the utility model is a special machine for processing the flange end of a fluorine-lined ball valve, comprising a horizontally arranged station switching turntable 1, a loading station 2, a turning station 3, a boring station 4 and a tapping station 5 uniformly distributed on the outer circumference of the station switching turntable 1 in a counterclockwise direction. The loading station is convenient for manually loading the valve body of the ball valve, the turning station 3 is provided with a turning device 6, the turning device is used to turn the flange end face of the valve body, the boring station 4 is provided with a boring device 7, the boring device is used to bore the flange end face of the valve body The flange hole on the end face is bored, and the tapping station 5 is provided with a tapping device 8, which is used to tap the flange hole on the end face of the valve body flange. The turning device, boring device and tapping device can move along the radial direction of the station switching turntable, for example, under the drive of the linear module; four ball valve clamps evenly distributed on the circumference are provided on the top of the station switching turntable 1, and the ball valve clamp is used to clamp the valve body of the ball valve. The station switching turntable rotates 90 degrees counterclockwise each time, so as to realize the station switching with a single rotation.

[0022] In this embodiment, each ball valve fixture includes a positioning support block 10 fixed to the top of the station switching dial 1 and in contact with the liquid outlet end face of the valve body 9. A pressure plate 11 is positioned parallel to and directly above the positioning support block 10. This pressure plate 11 is driven downward by a downward pressure cylinder 12 directly above it to press down on the liquid inlet end face of the valve body 9. During operation, the ball valve body is placed between the pressure plate and the positioning support block, with the liquid outlet end face of the valve body contacting the positioning support block. The downward pressure cylinder then drives the pressure plate downward to press against the liquid inlet end face of the valve body. At this time, the flange end of the ball valve is located on the side away from the axis of the station switching dial. When a station switch is required, the pressure plate moves upward and separates from the valve body. The station switching dial then drives the valve body to rotate synchronously via the positioning support block. After the station switch is completed, the downward pressure cylinder drives the pressure plate downward again to press against the liquid inlet end face of the valve body.

[0023] In this embodiment, to improve the clamping effect of the valve body, the positioning support block 10 is provided with an internal three-jaw chuck 13. When the valve body is placed on the positioning support block, the internal three-jaw chuck 13 extends into the interior of the liquid outlet end of the valve body, further securing the valve body. Preferably, the internal three-jaw chuck can be manually loosened or clamped.

[0024] In this embodiment, an L-shaped block 14 is provided next to the positioning support block 10 and is fixed to the top of the station switching turntable 1. A horizontally arranged jackscrew 15 is screwed onto the vertical side of the L-shaped block 14. The jackscrew 15 is used to press against the outer peripheral side of the flange end of the valve body 9. The jackscrew, the pressure plate, and the internal three-jaw chuck provide three-point positioning for the valve body, effectively improving the clamping effect of the valve body.

[0025] In this embodiment, the piston rod of the downward-pressing oil cylinder 12 extends downward and is fixed with a horizontal connecting rod 16 at the end. The horizontal connecting rod 16 extends radially along the workstation switching turntable 1. The end of the horizontal connecting rod 16 away from the axis of the workstation switching turntable 1 is connected to the top of the pressure plate 11. The downward-pressing oil cylinder drives the pressure plate to move up and down through the horizontal connecting rod.

[0026] In this embodiment, a vertically arranged downward pressure limit rod 17 is fixed to one end of the horizontal connecting rod 16 close to the axis of the work station switching turntable 1. A vertical screw hole is provided at the lower end of the downward pressure limit rod. A vertically arranged limit adjustment bolt 18 is screwed into the vertical screw hole at the lower end of the downward pressure limit rod 17. The limit adjustment bolt extends downward to the bottom of the downward pressure limit rod. The bolt head of the limit adjustment bolt 18 faces downward and is used to contact the top of the work station switching turntable 1 to achieve downward pressure limiting. By providing a downward pressure limit rod and a limit adjustment bolt, downward pressure limiting is facilitated to avoid damage to the valve body caused by excessive downward pressure. By rotating the limit adjustment bolt, the extent to which the limit adjustment bolt extends out of the downward pressure limit rod can be adjusted, and then the distance between the bolt head of the limit adjustment bolt and the work station switching turntable can be adjusted, thereby achieving different downward pressure limit strokes.

[0027] In this embodiment, a square frame 19 is further provided directly above the work station switching turntable 1. The middle parts of the four sides of the square frame 19 correspond to the positions of the loading station 2, the turning station 3, the boring station 4 and the tapping station 5 respectively. The bottom of the square frame 19 is connected to the work station switching turntable 1 through vertical support rods 20 on all four sides; the downward pressure cylinder 12 is vertically installed in the middle part of the side of the square frame 19; and the direction frame is used to support the four downward pressure cylinders.

[0028] In this embodiment, a vertically arranged driving shaft 21 is connected to the middle of the workstation switching turntable 1. The driving shaft 21 is driven to rotate by a motor assembly, and the driving shaft drives the workstation switching turntable to rotate.

[0029] It should be noted that the turning equipment, boring equipment and tapping equipment are all existing technologies, and their structures and working principles will not be repeated here.

[0030] If the present invention discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by integral molding using a casting process) (except where it is obviously impossible to use an integrated molding process).

[0031] In addition, unless otherwise stated, the terms used in any technical solution disclosed in the above-mentioned utility model to express positional relationships or shapes include states or shapes that are approximate, similar or close thereto.

[0032] Any component provided by the present invention can be assembled from multiple separate components, or can be a separate component manufactured by an integral forming process.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and not to limit it; although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents; without departing from the spirit of the technical solution of the utility model, they should all be included in the scope of the technical solution for protection of the utility model.

Claims

1. A special machine for processing the flange end of a fluorine-lined ball valve, comprising a station switching turntable, a loading station, a turning station, a boring station, and a tapping station uniformly distributed on the outer circumference of the station switching turntable in a counterclockwise direction, wherein the turning station is provided with a turning device, the boring station is provided with a boring device, and the tapping station is provided with a tapping device, and is characterized in that: Four ball valve clamps evenly distributed around the circumference are provided on the top of the workstation switching turntable. Each ball valve clamp includes a positioning support block fixed on the top of the workstation switching turntable and in contact with the liquid outlet end face of the valve body. A pressure plate is provided directly above the positioning support block. The pressure plate is driven by a downward pressure cylinder directly above it to press downward on the liquid inlet end face of the valve body.

2. The special machine for processing the upper flange end of a fluorine-lined ball valve according to claim 1, characterized in that: The positioning support block is provided with an inner three-jaw chuck for extending into the interior of the liquid outlet end of the valve body.

3. The special machine for processing the upper flange end of a fluorine-lined ball valve according to claim 1, characterized in that: An L-shaped block fixed to the top of the station switching turntable is provided beside the positioning support block. The vertical edge of the L-shaped block is screwed with a horizontally set top screw, and the top screw is used to press against the outer peripheral side of the flange end of the valve body.

4. The special machine for processing the upper flange end of a fluorine-lined ball valve according to claim 1, characterized in that: The piston rod of the downward pressure cylinder extends downward and a horizontal connecting rod is fixed to the end. The horizontal connecting rod extends radially along the workstation switching turntable, and one end of the horizontal connecting rod away from the axis of the workstation switching turntable is connected to the top of the pressure plate.

5. The special machine for processing the upper flange end of a fluorine-lined ball valve according to claim 4, characterized in that: A vertically arranged downward pressure limit rod is fixed to one end of the horizontal connecting rod close to the axis of the work station switching turntable, and a vertically arranged limit adjustment bolt is screwed to the lower end of the downward pressure limit rod. The bolt head of the limit adjustment bolt faces downward and is used to contact the top of the work station switching turntable to achieve downward pressure limit.

6. The special machine for processing the upper flange end of a fluorine-lined ball valve according to claim 1, characterized in that: A square frame is also provided directly above the work station switching turntable. The middle parts of the four sides of the square frame correspond to the positions of the loading station, turning station, boring station and tapping station respectively. The bottom of the square frame is connected to the work station switching turntable through vertical support rods. The downward pressure cylinder is vertically installed in the middle part of the side of the square frame.

7. The special machine for processing the upper flange end of a fluorine-lined ball valve according to claim 1, characterized in that: A vertically arranged driving shaft is connected to the middle of the station switching turntable, and the driving shaft is driven to rotate by a motor assembly.

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