Clamping and fixing device for valve machining

Abstract

The utility model relates to the technical field of valve machining, and discloses a clamping and fixing device for valve machining, which comprises a support plate and a concave seat, the upper surface and the lower surface of the concave seat are both provided with threaded holes, the inner wall of each threaded hole is in threaded connection with a threaded rod, and the end face of each threaded rod is rotatably connected with a moving plate. The side faces of the moving plates are in lap joint with the inner side wall of the concave base, and the opposite faces of the upper moving plate and the lower moving plate are rotationally connected with mounting plates. According to the clamping and fixing device for valve machining, a valve is placed between two concave boxes, a threaded rod is rotated, the threaded rod drives a movable plate to move, at the moment, a mounting plate drives the concave boxes to approach the valve, a T-shaped rod is in lap joint with the valve, the T-shaped rod is stored in a sleeve, a first spring is extruded, and rotation of the threaded rod is stopped when the sleeve is in lap joint with the surface of the valve; and as the surface of the valve is a curved surface, the extending lengths of the T-shaped rods are different, so that the device can adapt to different types of valves and is convenient to fix.

Description

Technical Field

[0001] The utility model relates to the technical field of valve processing, and more specifically to a clamping and fixing device for valve processing. Background Art

[0002] After the valve processing is completed, the connection needs to be milled and polished. The connection is generally disc-shaped, which is convenient for connection with the flange. Announcement No. CN215617600U A clamping device used for valve processing proposes that the valve needs to be polished or milled during the production process. During this processing process, a valve clamping device is needed to fix it. However, the existing valve processing clamping device has excessive holding force during the initial clamping, which causes deformation. If the holding force is too small, it is very easy to shift the position, which seriously affects the processing quality and cannot meet the actual production and processing needs. The bidirectional screw is rotated by a bidirectional drive motor so that the clamping plates of the left fixed rod and the right fixed rod are close to each other, which can achieve clamping and loosening of the workpiece, which is simple and quick. Secondly, the toggle head at the telescopic end of the hydraulic telescopic rod is used to toggle the rotating balls of the first clamping rod and the second clamping rod, so that the abutment ball abuts against the workpiece, thereby achieving further clamping of the workpiece.

[0003] However, there are many types of existing valves. In addition to ordinary valves, there are also three-way valves and four-way valves on the market. The fixing part of the above device cannot adapt to the clamping and fixing of different types of valves, and the scope of use is relatively small. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a clamping and fixing device for valve processing to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solutions: a clamping and fixing device for valve processing, comprising a supporting plate and a concave seat, wherein the upper surface and the lower surface of the concave seat are both provided with threaded holes, the inner wall of the threaded hole is threadedly connected with a threaded rod, the end face of the threaded rod is rotatably connected with a movable plate, the side surface of the movable plate overlaps the inner side wall of the concave seat, the opposite surfaces of the upper and lower movable plates are rotatably connected with mounting plates, the lower surface of the mounting plate is fixedly connected with a concave box, the inner top wall of the concave box is fixedly connected with a sleeve, the inner wall of the sleeve is slidably connected with a T-shaped rod, the opposite surface of the T-shaped rod and the sleeve is fixedly connected with a first spring, the number of sleeves is several, and the several sleeves are arranged on the inner top wall of the concave box in a rectangular array;

[0006] A sliding hole is provided on the upper surface of the movable plate, and a T-shaped plug rod is slidably connected to the inner wall of the sliding hole. A tension spring is fixedly connected to the opposite surface of the T-shaped plug rod and the movable plate. A countersunk hole matching the T-shaped plug rod is provided on the surface of the mounting plate, and the surface of the T-shaped plug rod overlaps with the inner wall of the countersunk hole. There are four countersunk holes on a single mounting plate, and the four countersunk holes are arranged in a circular array on the surface of the mounting plate.

[0007] A further solution is that a driving motor is fixedly connected to the side of the support plate, and the side of the concave seat is rotatably connected to the side of the support plate through a slewing bearing, and the output end of the driving motor passes through the support plate and is fixedly connected to the side of the concave seat, and a positioning column is detachably installed on the inner wall of the concave seat, and a cavity is opened inside the positioning column, and a bidirectional screw is rotatably connected to the inner wall of the cavity, and the surface of the bidirectional screw is threadedly connected to two moving blocks, the surface of the moving block overlaps the inner wall of the cavity, and the opposite back surfaces of the two moving blocks are fixedly connected with arc-surface push blocks, and the surface of the positioning column is opened with a through opening adapted to the arc-surface push block, the surface of the arc-surface push block overlaps the inner wall of the through opening, and a rotating groove is opened on the inner wall of the cavity, and the inner wall of the rotating groove is rotatably connected to a driving rod, and the end face of the driving rod and the surface of the bidirectional screw are fixedly connected with bevel gears, and the surfaces of the two bevel gears mesh with each other.

[0008] A further solution is that a groove is provided at one end of the positioning column facing the concave seat, a connecting block is fixedly connected to the inner side wall of the concave seat, the surface of the connecting block overlaps the inner wall of the groove, T-slots are provided on the front and back sides of the connecting block, a T-shaped plug-in block is slidably connected to the inner wall of the T-slot, a second spring is fixedly connected to the opposite surface of the T-shaped plug-in block and the T-slot, a positioning groove is provided on the inner wall of the groove, the surface of the T-shaped plug-in block overlaps the inner wall of the positioning groove, and both sides of the T-shaped plug-in block are arc-shaped.

[0009] Technical effects and advantages of the utility model:

[0010] 1. The clamping and fixing device for processing the valve places the valve between two concave boxes, rotates the threaded rod, and the threaded rod drives the moving plate to move. At this time, the mounting plate drives the concave box close to the valve, and the T-shaped rod overlaps the valve. The T-shaped rod is stored in the sleeve, and the first spring is squeezed. When the sleeve overlaps the valve surface, the threaded rod stops rotating. Since the surface of the valve is a curved surface, the lengths of each T-shaped rod extending out are different at this time, so that the device can adapt to different types of valves and is convenient for fixing. Pull the T-shaped plug rod out of the countersunk hole. At this time, the mounting plate can be rotated. Rotating the mounting plate drives the valve to rotate to adjust the position of the valve connection. Loosen the T-shaped plug rod. Under the tension of the tension spring, the T-shaped plug rod is inserted into the countersunk hole to fix the position of the mounting plate, thereby facilitating the milling of each connection of the valve.

[0011] 2. The clamping and fixing device for processing the valve is used to align the positioning column with the connecting block and insert it. The arc surface of the T-shaped plug on the connecting block is forced to be accommodated in the T-shaped groove, and the second spring is squeezed. The positioning column is rotated. When the positioning groove moves to the T-shaped plug, the T-shaped plug is pushed into the positioning groove by the elastic force of the second spring to complete the fixation of the positioning column. At this time, the valve is put on the positioning column and the driving rod is rotated. The driving rod drives the two-way screw to rotate through the bevel gear. The moving block drives the arc push block to move against the inner ring surface of the valve to position the valve, which is convenient for placement, and can ensure that the central axis of the valve and the central axis of the driving shaft of the driving motor are in the same straight line, which is convenient for the milling operation of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0013] Figure 2 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0014] Figure 3 It is a schematic diagram of the internal structure of the sleeve of the utility model.

[0015] Figure 4 It is a schematic diagram of the front section structure of the positioning column of the utility model.

[0016] The accompanying drawings are marked as follows: 1 support plate, 2 concave seat, 3 threaded rod, 4 movable plate, 5 mounting plate, 6 concave box, 7 sleeve, 8 T-shaped rod, 9 first spring, 10 tension spring, 11 drive motor, 12 positioning column, 13 bidirectional screw, 14 movable block, 15 arc surface push block, 16 drive rod, 17 bevel gear, 18 connecting block, 19 T-shaped plug block, 20 second spring, 21 T-shaped plug rod. DETAILED DESCRIPTION

[0017] A clamping device for valve processing, referring to Figure 1-4 , including a support plate 1 and a concave seat 2, the upper and lower surfaces of the concave seat 2 are provided with threaded holes, the inner walls of the threaded holes are threadedly connected with threaded rods 3, the end faces of the threaded rods 3 are rotatably connected with a movable plate 4, the upper surface of the movable plate 4 is fixedly connected with a limited light rod, the limited light rod passes through the concave seat 2, the side faces of the movable plate 4 overlap with the inner side walls of the concave seat 2, the opposite surfaces of the upper and lower movable plates 4 are rotatably connected with mounting plates 5, the lower surface of the mounting plate 5 is fixedly connected with a concave box 6, the inner top wall of the concave box 6 is fixedly connected with a sleeve 7, the inner wall of the sleeve 7 is slidably connected with a T-shaped rod 8, and the opposite surfaces of the T-shaped rod 8 and the sleeve 7 are fixedly connected with a first spring 9.

[0018] There are several sleeves 7, which are arranged in a rectangular array on the inner top wall of the concave box 6. A sliding hole is provided on the upper surface of the movable plate 4. A T-shaped plug rod 21 is slidably connected to the inner wall of the sliding hole. The T-shaped plug rod 21 and the opposite surface of the movable plate 4 are fixedly connected with a tension spring 10. A countersunk hole matching the T-shaped plug rod 21 is provided on the surface of the mounting plate 5. The surface of the T-shaped plug rod 21 overlaps the inner wall of the countersunk hole. There are four countersunk holes on a single mounting plate 5, and the four countersunk holes are arranged in a circular array on the surface of the mounting plate 5.

[0019] Place the valve between the two concave boxes 6, rotate the threaded rod 3, the threaded rod 3 drives the moving plate 4 to move, at this time the mounting plate 5 drives the concave box 6 close to the valve, the T-shaped rod 8 overlaps the valve, the T-shaped rod 8 is received in the sleeve 7, the first spring 9 is squeezed, and the threaded rod 3 is stopped from rotating when the sleeve 7 overlaps the valve surface. Since the surface of the valve is a curved surface, the extended lengths of each T-shaped rod 8 are different at this time, so that the device can adapt to different types of valves and is convenient for fixing. Pull the T-shaped plug rod 21 out of the countersunk hole, at this time the mounting plate 5 can be rotated, rotating the mounting plate 5 to drive the valve to rotate and adjust the position of the valve connection, loosen the T-shaped plug rod 21, and under the tension of the tension spring 10, the T-shaped plug rod 21 is inserted into the countersunk hole to fix the position of the mounting plate 5, thereby facilitating the milling of each connection of the valve.

[0020] A driving motor 11 is fixedly connected to the side of the support plate 1, and the side of the concave seat 2 is rotatably connected to the side of the support plate 1 through a turntable bearing. The output end of the driving motor 11 passes through the support plate 1 and is fixedly connected to the side of the concave seat 2. A positioning column 12 is detachably installed on the inner wall of the concave seat 2. A cavity is opened inside the positioning column 12, and a bidirectional screw 13 is rotatably connected to the inner wall of the cavity. The surface of the bidirectional screw 13 is threadedly connected to two moving blocks 14. The surface of the moving block 14 overlaps the inner wall of the cavity, and the opposite back surfaces of the two moving blocks 14 are fixedly connected to arc push blocks 15.

[0021] A through opening matched with the arc push block 15 is opened on the surface of the positioning column 12, and the surface of the arc push block 15 overlaps the inner wall of the through opening. A rotating groove is opened on the inner wall of the cavity, and a driving rod 16 is rotatably connected to the inner wall of the rotating groove. The end face of the driving rod 16 and the surface of the bidirectional screw 13 are fixedly connected with a bevel gear 17, and the surfaces of the two bevel gears 17 are meshed with each other. A groove is opened at one end of the positioning column 12 facing the concave seat 2, and a connecting block 18 is fixedly connected to the inner side wall of the concave seat 2. The surface of the connecting block 18 overlaps the inner wall of the groove, and a T-shaped groove is opened on the front and back sides of the connecting block 18. A T-shaped plug block 19 is slidably connected to the inner wall of the T-shaped groove. The T-shaped plug block 19 is fixedly connected to the opposite surface of the T-shaped groove with a second spring 20, and a positioning groove is opened on the inner wall of the groove. The surface of the T-shaped plug block 19 overlaps the inner wall of the positioning groove, and both sides of the T-shaped plug block 19 are arc-shaped.

[0022] The positioning column 12 is aligned with the connecting block 18 and inserted. The arc surface of the T-shaped plug 19 on the connecting block 18 is forcefully received in the T-shaped groove, the second spring 20 is squeezed, and the positioning column 12 is rotated. When the positioning groove moves to the T-shaped plug 19, the T-shaped plug 19 is pushed into the positioning groove by the elastic force of the second spring 20 to complete the fixation of the positioning column 12. At this time, the valve is sleeved on the positioning column 12, and the driving rod 16 is rotated. The driving rod 16 drives the two-way screw 13 to rotate through the bevel gear 17, and the moving block 14 drives the arc surface push block 15 to move against the inner ring surface of the valve to position the valve. The positioning column 12 is pulled. At this time, the arc surface of the T-shaped plug 19 is also forcefully received, which is convenient for the removal and placement of the positioning column 12, and can ensure that the center axis of the valve is in the same straight line as the center axis of the driving shaft of the driving motor 11, which is convenient for the milling operation of the valve. It should be noted that the positioning column 12 needs to be taken out after the valve is fixed.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A clamping and fixing device for valve processing, comprising a support plate (1) and a concave seat (2), characterized in that: The upper and lower surfaces of the concave seat (2) are both provided with threaded holes, the inner wall of the threaded hole is threadedly connected with a threaded rod (3), the end surface of the threaded rod (3) is rotatably connected with a movable plate (4), the side surface of the movable plate (4) overlaps the inner wall of the concave seat (2), the opposite surfaces of the upper and lower movable plates (4) are rotatably connected with mounting plates (5), the lower surface of the mounting plate (5) is fixedly connected with a concave box (6), the inner top wall of the concave box (6) is fixedly connected with a sleeve (7), the inner wall of the sleeve (7) is slidably connected with a T-shaped rod (8), the opposite surface of the T-shaped rod (8) and the sleeve (7) is fixedly connected with a first spring (9), the number of the sleeves (7) is a plurality, and the plurality of sleeves (7) are arranged in a rectangular array on the inner top wall of the concave box (6); The upper surface of the movable plate (4) is provided with a sliding hole, the inner wall of the sliding hole is slidably connected to a T-shaped plug rod (21), the opposite surface of the T-shaped plug rod (21) and the movable plate (4) is fixedly connected to a tension spring (10), the surface of the mounting plate (5) is provided with a countersunk hole adapted to the T-shaped plug rod (21), the surface of the T-shaped plug rod (21) overlaps the inner wall of the countersunk hole, the number of the countersunk holes on a single mounting plate (5) is four, and the four countersunk holes are arranged in a circular array on the surface of the mounting plate (5).

2. A clamping and fixing device for valve processing according to claim 1, characterized in that: The side of the support plate (1) is fixedly connected to a driving motor (11); the side of the concave seat (2) is rotatably connected to the side of the support plate (1) via a turntable bearing; and the output end of the driving motor (11) passes through the support plate (1) and is fixedly connected to the side of the concave seat (2).

3. A clamping and fixing device for valve processing according to claim 2, characterized in that: A positioning column (12) is detachably mounted on the inner wall of the concave seat (2), a cavity is provided inside the positioning column (12), and a bidirectional screw (13) is rotatably connected to the inner wall of the cavity.

4. A clamping and fixing device for valve processing according to claim 3, characterized in that: The surface of the bidirectional screw (13) is threadedly connected to two moving blocks (14), the surface of the moving blocks (14) overlaps the inner wall of the cavity, and the opposite back surfaces of the two moving blocks (14) are fixedly connected to arc-surface push blocks (15).

5. A clamping and fixing device for valve processing according to claim 4, characterized in that: The surface of the positioning column (12) is provided with a through opening matched with the arc surface push block (15), the surface of the arc surface push block (15) overlaps with the inner wall of the through opening, the inner wall of the cavity is provided with a rotating groove, the inner wall of the rotating groove is rotatably connected with a driving rod (16), the end surface of the driving rod (16) and the surface of the bidirectional screw (13) are fixedly connected with a bevel gear (17), and the surfaces of the two bevel gears (17) are meshed with each other.

6. A clamping and fixing device for valve processing according to claim 5, characterized in that: A groove is formed at one end of the positioning column (12) facing the concave seat (2); a connecting block (18) is fixedly connected to the inner wall of the concave seat (2); and a surface of the connecting block (18) overlaps the inner wall of the groove.

7. A clamping and fixing device for valve processing according to claim 6, characterized in that: The front and back sides of the connecting block (18) are both provided with T-shaped grooves, the inner wall of the T-shaped groove is slidably connected with a T-shaped plug-in block (19), and the T-shaped plug-in block (19) and the opposite surface of the T-shaped groove are fixedly connected with a second spring (20).

8. The clamping and fixing device for valve processing according to claim 7, characterized in that: The inner wall of the groove is provided with a positioning groove, the surface of the T-shaped plug block (19) overlaps with the inner wall of the positioning groove, and both sides of the T-shaped plug block (19) are arc-shaped.

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