Tool clamp for centrifugal water pump shell

Abstract

The utility model relates to the technical field of water pump shell clamps, in particular to a tool clamp for a centrifugal water pump shell, which comprises a mounting plate, a first limiting component, a second limiting component and a third limiting component. A groove used for installing a telescopic rod is formed in the side, away from the installing plate, of the sliding plate, the end, located in the groove, of the telescopic rod is fixedly sleeved with a positioning plate, the end, away from the positioning plate, of the telescopic rod sequentially penetrates through a centrifugal pump shell workpiece and a pressing plate to be in threaded connection with a locking nut, and a connecting arm is installed in the middle of the side, away from the sliding groove, of the installing plate. The first limiting assembly, the second limiting assembly and the third limiting assembly jointly define a limiting cavity used for containing the centrifugal pump shell workpieces on one side of the mounting plate, so that the clamp can limit the positions of the centrifugal pump shell workpieces of different models and different sizes, and then the practicability of the tool clamp can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water pump housing jigs, and particularly relates to a tooling jig for a centrifugal water pump housing. Background Technique

[0002] A centrifugal pump refers to a pump that conveys liquid by the centrifugal force generated when the impeller rotates. A centrifugal pump mainly consists of an impeller, a pump body, a pump shaft, bearings, a sealing ring, a stuffing box, etc. It is widely used in chemical industries such as petrochemical industry and coal chemical industry. The types of centrifugal pumps can be divided into acid pumps, alkali pumps, water pumps, slurry pumps, etc. The main characteristics include a compact structure, a wide range of flow and head, uniform flow, stable operation, small vibration, and relatively low maintenance and repair costs.

[0003] When processing the centrifugal pump housing, it is necessary to drill holes in the surface of the centrifugal pump housing and the flange. Since the centrifugal pump housing has an arc shape, a jig with an arc structure needs to be used. The existing tooling jigs have limitations in use and cannot be adjusted accordingly according to the position and size of the centrifugal pump housing, thus reducing their practicability.

[0004] Therefore, we propose a tooling jig for a centrifugal water pump housing. Content of the Utility Model

[0005] The main purpose of the utility model is to provide a tooling jig for a centrifugal water pump housing. The first limiting component, the second limiting component, and the third limiting component jointly enclose a limiting cavity for placing the centrifugal pump housing workpiece on one side of the mounting plate, so that the jig can limit the positions of centrifugal pump housing workpieces of different models and different sizes, thereby improving the practicability of the tooling jig and effectively solving the problems in the background technique.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A tooling jig for a centrifugal water pump housing, comprising a mounting plate, a first limiting component, a second limiting component, and a third limiting component. A chute for installing a threaded rod and a sliding plate is provided on one side of the mounting plate. A motor connected to the threaded rod is fixedly installed at one end of the mounting plate. A groove for installing a telescopic rod is provided on the side of the sliding plate away from the mounting plate. A positioning plate is fixedly sleeved at one end of the telescopic rod located in the groove. One end of the telescopic rod away from the positioning plate sequentially passes through the centrifugal pump housing workpiece, a pressing plate, and is threadedly connected with a locking nut;

[0008] On one side of the mounting plate close to the sliding groove and away from one end of the motor, a first limiting component is provided. On one side of the mounting plate close to the sliding groove and away from one end of the first limiting component, a second limiting component and a third limiting component are respectively provided. The third limiting component is rotatably connected to one side of the mounting plate. The first limiting component, the second limiting component and the third limiting component are all arranged oppositely. The first limiting component, the second limiting component and the third limiting component jointly enclose a limiting cavity for placing the centrifugal pump casing workpiece on one side of the mounting plate;

[0009] At the center of the side of the mounting plate away from the sliding groove, a connecting arm is installed.

[0010] Specifically, the sliding groove is located between the second limiting component and the third limiting component. One end of the threaded rod passes through the inner wall of one end of the sliding groove and is connected to the output shaft of one end of the motor. The sliding plate is sleeved on the threaded rod and is in threaded cooperation with the threaded rod.

[0011] Specifically, the first limiting component includes a first push plate, a first rubber pad, a first fixing plate and a first screw rod. The first fixing plate is perpendicularly welded to one end of the mounting plate. The first push plate is slidably connected to one side of the mounting plate.

[0012] Specifically, one end of the first screw rod passes through the first fixing plate and is rotatably connected to the first push plate. On the side of the first push plate away from the first screw rod, a first arc-shaped groove adapted to the centrifugal pump casing workpiece is provided. On the side of the first push plate close to the first arc-shaped groove, a first rubber pad is fixedly adhered.

[0013] Specifically, the second limiting component includes a second screw rod, a second fixing plate and a second push plate. The second fixing plate is fixedly connected to one side of the mounting plate. The second fixing plate is arranged parallel to and opposite the first fixing plate.

[0014] Specifically, the third limiting component includes a box body, an electric cylinder, a mounting ear, a third push plate and a first bolt. A rotating shaft is installed on one side of the box body. The box body is rotatably connected to the mounting plate through the rotating shaft. An electric cylinder is fixedly installed in the box body. The electric cylinder is connected to the third push plate through a piston rod.

[0015] The beneficial effects of the present utility model:

[0016] (1) For the fixture for the centrifugal pump casing of the present utility model, the first limiting component, the second limiting component and the third limiting component jointly enclose a limiting cavity for placing the centrifugal pump casing workpiece on one side of the mounting plate, so that the fixture can limit the positions of centrifugal pump casing workpieces of different models and different sizes, and thus can improve the practicability of the fixture;

[0017] (2) A tooling fixture for a centrifugal pump housing according to the present utility model. The positioning plate is slidably connected to the inner wall of the groove, enabling the telescopic rod to adjust its position back and forth. After determining the position of the telescopic rod, the positioning plate is fixedly connected to the sliding plate through the second bolt. The motor drives the threaded rod to rotate, and through the threaded fit between the threaded rod and the sliding plate, the sliding plate can drive the positioning plate and the telescopic rod to adjust their positions left and right until they are adjusted to correspond to the position of the centrifugal pump housing workpiece to be processed. One end of the telescopic rod away from the positioning plate sequentially passes through the centrifugal pump housing workpiece, the pressing plate and is threadedly connected to the locking nut. Rotate the box body so that the third pushing plate is aligned with the centrifugal pump housing workpiece. Through the cooperation of the above structures, the tooling fixture can be used flexibly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0019] Figure 1 is a schematic structural diagram of the present utility model;

[0020] Figure 2 is a top view of the mounting plate of the present utility model;

[0021] Figure 3 is a three-dimensional view of the mounting plate of the present utility model;

[0022] In the figure: 1, mounting plate; 2, first limiting component; 3, second limiting component; 4, third limiting component; 5, centrifugal pump housing workpiece; 6, telescopic rod; 7, pressing plate; 8, locking nut; 9, first bolt; 10, chute; 11, motor; 12, threaded rod; 13, sliding plate; 14, groove; 15, positioning plate; 16, connecting arm; 201, first pushing plate; 202, first rubber pad; 203, first fixing plate; 204, first lead screw; 205, first arc-shaped groove; 301, second lead screw; 302, second fixing plate; 303, second pushing plate; 401, box body; 402, electric cylinder; 403, mounting ear; 404, third pushing plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] As an embodiment of the present utility model, as Figures 1 - 3As shown in the figure, a fixture for a centrifugal pump housing according to the present utility model includes a mounting plate 1, a first limiting component 2, a second limiting component 3, and a third limiting component 4. A chute 10 for mounting a threaded rod 12 and a slide plate 13 is provided on one side of the mounting plate 1. A motor 11 connected to the threaded rod 12 is fixedly installed at one end of the mounting plate 1. A groove 14 for mounting a telescopic rod 6 is provided on the side of the slide plate 13 away from the mounting plate 1. A positioning plate 15 is fixedly sleeved at one end of the telescopic rod 6 located in the groove 14. One end of the telescopic rod 6 away from the positioning plate 15 sequentially passes through a centrifugal pump housing workpiece 5, a pressing plate 7, and is threadedly connected to a locking nut 8.

[0025] A first limiting component 2 is provided on one side of the mounting plate 1 close to the chute 10 and away from the motor 11. A second limiting component 3 and a third limiting component 4 are respectively provided on one side of the mounting plate 1 close to the chute 10 and away from the first limiting component 2. The third limiting component 4 is rotatably connected to one side of the mounting plate 1. The first limiting component 2, the second limiting component 3, and the third limiting component 4 are all arranged oppositely. The first limiting component 2, the second limiting component 3, and the third limiting component 4 jointly enclose a limiting cavity for placing the centrifugal pump housing workpiece 5 on one side of the mounting plate 1.

[0026] A connecting arm 16 is installed at the center of the side of the mounting plate 1 away from the chute 10.

[0027] During use, the positioning plate 15 is located in the groove 14, and the positioning plate 15 is slidably connected to the inner wall of the groove 14, enabling the telescopic rod 6 to adjust its position back and forth. The positioning plate 15 is fixedly connected to the slide plate 13 by a second bolt. The motor 11 drives the threaded rod 12 to rotate, and through the threaded cooperation between the threaded rod 12 and the slide plate 13, the slide plate 13 can drive the positioning plate 15 and the telescopic rod 6 to adjust their positions left and right.

[0028] The present utility model further includes that the chute 10 is located between the second limiting component 3 and the third limiting component 4. One end of the threaded rod 12 passes through the inner wall of one end of the chute 10 and is connected to the output shaft of one end of the motor 11. The slide plate 13 is sleeved on the threaded rod 12 and is in threaded cooperation with the threaded rod 12.

[0029] The present utility model further includes that the first limiting component 2 includes a first push plate 201, a first rubber pad 202, a first fixing plate 203, and a first screw rod 204. The first fixing plate 203 is perpendicularly welded to one end of the mounting plate 1. The first push plate 201 is slidably connected to one side of the mounting plate 1.

[0030] The utility model further includes that one end of the first lead screw 204 passes through the first fixing plate 203 and is rotatably connected to the first push plate 201. A first arc-shaped groove 205 adapted to the centrifugal pump housing workpiece 5 is provided on the side of the first push plate 201 away from the first lead screw 204. A first rubber pad 202 is fixedly adhered to the side of the first push plate 201 close to the first arc-shaped groove 205.

[0031] The utility model further includes that the second limiting component 3 includes a second lead screw 301, a second fixing plate 302 and a second push plate 303. The second fixing plate 302 is fixedly connected to one side of the mounting plate 1, and the second fixing plate 302 is arranged parallel to the first fixing plate 203;

[0032] The second push plate 303 is slidably connected to one side of the mounting plate 1. One end of the second lead screw 301 passes through the second fixing plate 302 and is rotatably connected to the second push plate 303. A second rubber pad is fixedly adhered to the side of the second push plate 303 close to the centrifugal pump housing workpiece 5.

[0033] The utility model further includes that the third limiting component 4 includes a box body 401, an electric cylinder 402, mounting ears 403, a third push plate 404 and a first bolt 9. A rotating shaft is installed on one side of the box body 401, and the box body 401 is rotatably connected to the mounting plate 1 through the rotating shaft. The electric cylinder 402 is fixedly installed in the box body 401, and the electric cylinder 402 is connected to the third push plate 404 through a piston rod;

[0034] A second arc-shaped groove adapted to one side of the centrifugal pump housing workpiece 5 is provided on the side of the third push plate 404 away from the piston rod. A protective pad is fixedly adhered to the side of the third push plate 404 close to the centrifugal pump housing workpiece 5. Mounting ears 403 are fixedly connected to both sides of the box body 401, and the mounting ears 403 are fixedly connected to one side of the mounting plate 1 through the first bolt 9.

[0035] When the utility model is in use, the positioning plate 15 is slidably connected to the inner wall of the groove 14, so that the telescopic rod 6 can adjust its position back and forth. After determining the position of the telescopic rod 6, the positioning plate 15 is fixedly connected to the sliding plate 13 through the second bolt. The motor 11 drives the threaded rod 12 to rotate, and through the threaded cooperation between the threaded rod 12 and the sliding plate 13, the sliding plate 13 can drive the positioning plate 15 and the telescopic rod 6 to adjust their positions left and right until they are adjusted to correspond to the position of the centrifugal pump housing workpiece 5 to be processed;

[0036] Then, place the centrifugal pump housing workpiece 5 on the telescopic rod 6. One end of the telescopic rod 6 away from the positioning plate 15 passes through the centrifugal pump housing workpiece 5, the pressing plate 7, and is threadedly connected to the locking nut 8. Then, rotate the box body 401 to align the third push plate 404 with the centrifugal pump housing workpiece 5. Then, pass one end of the first bolt 9 through the mounting ear 403 and threadedly connect it to the mounting plate 1. The position of the centrifugal pump housing workpiece 5 can be limited by the first limiting component 2, the second limiting component 3, and the third limiting component 4.

[0037] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A fixture for a centrifugal water pump housing, characterized in that: The invention comprises a mounting plate (1), a first limiting assembly (2), a second limiting assembly (3) and a third limiting assembly (4); one side of the mounting plate (1) is provided with a slide groove (10) for installing a threaded rod (12) and a slide plate (13); one end of the mounting plate (1) is fixedly provided with a motor (11) connected to the threaded rod (12); a side of the slide plate (13) away from the mounting plate (1) is provided with a groove (14) for installing a telescopic rod (6); one end of the telescopic rod (6) located in the groove (14) is fixedly sleeved with a positioning plate (15); the end of the telescopic rod (6) away from the positioning plate (15) passes through a centrifugal pump housing workpiece (5), a pressure plate (7) and a locking nut (8) in sequence for threaded connection; The mounting plate (1) is provided with a first limiting assembly (2) on one side close to the slide groove (10) and away from the motor (11); the mounting plate (1) is provided with a second limiting assembly (3) and a third limiting assembly (4) on one side close to the slide groove (10) and away from the first limiting assembly (2); the third limiting assembly (4) is rotatably connected to one side of the mounting plate (1); the first limiting assembly (2), the second limiting assembly (3) and the third limiting assembly (4) are arranged relative to each other; the first limiting assembly (2), the second limiting assembly (3) and the third limiting assembly (4) together enclose a limiting cavity on one side of the mounting plate (1) for placing a centrifugal pump casing workpiece (5); A connecting arm (16) is installed at the center of the side of the mounting plate (1) away from the slide groove (10).

2. A fixture for a centrifugal water pump housing according to claim 1, characterized in that: The slide groove (10) is located between the second limit assembly (3) and the third limit assembly (4); one end of the threaded rod (12) passes through the inner wall of one end of the slide groove (10) and is connected to the output shaft of one end of the motor (11); the slide plate (13) is sleeved on the threaded rod (12) and threadably matched with the threaded rod (12).

3. A fixture for a centrifugal water pump housing according to claim 1, characterized in that: The first limiting assembly (2) comprises a first push plate (201), a first rubber pad (202), a first fixing plate (203) and a first screw rod (204); the first fixing plate (203) is vertically welded to one end of the mounting plate (1); and the first push plate (201) is slidably connected to one side of the mounting plate (1).

4. A fixture for a centrifugal water pump housing according to claim 3, characterized in that: One end of the first screw rod (204) passes through the first fixed plate (203) and is rotatably connected to the first push plate (201); a first arc-shaped groove (205) adapted to the centrifugal pump housing workpiece (5) is provided on the side of the first push plate (201) away from the first screw rod (204); a first rubber pad (202) is fixedly glued to the side of the first push plate (201) close to the first arc-shaped groove (205).

5. The fixture for a centrifugal water pump housing according to claim 1, characterized in that: The second limiting assembly (3) comprises a second screw rod (301), a second fixing plate (302) and a second push plate (303); the second fixing plate (302) is fixedly connected to one side of the mounting plate (1); the second fixing plate (302) and the first fixing plate (203) are arranged relatively parallel.

6. A fixture for a centrifugal water pump housing according to claim 1, characterized in that: The third limiting assembly (4) comprises a box body (401), an electric cylinder (402), a mounting ear (403), a third push plate (404) and a first bolt (9); a rotating shaft is installed on one side of the box body (401); the box body (401) is rotatably connected to the mounting plate (1) via the rotating shaft; an electric cylinder (402) is fixedly installed in the box body (401); and the electric cylinder (402) is connected to the third push plate (404) via a piston rod.

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