A slag slurry pump shell processing device

Abstract

This utility model discloses a slurry pump casing processing device. The device is mounted on a processing machine workbench and includes two symmetrical clamping mechanisms and a first pre-tightener. The sliding legs of the clamping mechanisms are slidably connected to the T-slots of the workbench. An arc-shaped fixing block is fixed to the top of the sliding leg. Several clamps are detachably connected to the inner side of the fixing block via a sliding groove and mounting holes. Each clamp includes a terminal, a fixed seat, a sliding rod, a slider, and a spring. The slider has a limiting rod that engages with the limiting groove of the sliding groove. The sliding rod is a square rod and has a shaft hinge and ball hinge structure with the fixed seat. The first pre-tightener includes a screw with reverse threads at both ends and a crank handle. The clamping force can be adjusted by adjusting the first pre-tightener. The clamp spring and multi-angle adjustment structure can adapt to irregular pump casing shapes. Multi-point terminal support improves stability, making it widely applicable and meeting processing requirements.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a slurry pump casing machining device. Background Technology

[0002] As a key piece of equipment for conveying slurry containing solid particles, the pump casing, as a core pressure-bearing component, not only needs high strength to resist slurry erosion but also needs to meet the requirements of a complex internal cavity design. Therefore, slurry pump casings are mostly irregular casting structures. During the machining process of the slurry pump casing, high-precision cutting and drilling operations are required on key parts such as its end faces, flange holes, and sealing surfaces. The prerequisite for machining accuracy is to achieve stable and reliable clamping of the pump casing. Currently, the industry primarily uses traditional tooling fixtures for processing and clamping irregular slurry pump casings. This has several drawbacks: First, traditional fixtures are mostly fixed structures with clamping surfaces that are either flat or curved with a fixed curvature, making them unsuitable for slurry pump casings of different specifications and shapes. When processing different models of pump casings, the entire fixture set must be replaced, increasing tooling costs and causing excessive downtime for changeovers, severely impacting processing efficiency. Second, existing clamping devices often use a single bolt tightening method for adjusting clamping force, providing support at only one or a few points. This makes it difficult to apply uniform force to the outer wall of irregular pump casings at multiple points, easily leading to deformation of the casing during processing due to uneven force, resulting in dimensional deviations and reduced product yield.

[0003] With the increasing demands for product precision and production efficiency in the slurry pump industry, traditional clamping devices can no longer meet the high-efficiency and high-precision processing requirements of irregular slurry pump casings. Therefore, developing a processing clamping device that is highly adaptable, stable in clamping, easy to adjust, and can adapt to multiple models of slurry pump casings has become an urgent technical problem to be solved in the industry. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model proposes a slurry pump casing processing device, aiming to solve the problems of poor adaptability of existing devices to irregular slurry pump casings, unstable clamping, and inconvenient adjustment.

[0005] To achieve the above objectives, this utility model provides the following solution: A slurry pump casing processing device is installed on the workbench of a processing machine, including a clamping mechanism and a pre-tightener; two clamping mechanisms are provided, each clamping mechanism including a sliding leg, the sliding leg being slidably connected to the workbench, a mounting block being fixedly connected to the top of the sliding leg, an arc-shaped fixing block being fixedly connected to one side of the mounting block, and several clamps being detachably connected to the inner sidewall of the fixing block, the two fixing blocks being symmetrically arranged about the center of the workbench; both ends of the pre-tightener pass through the sliding leg and are screwed to the sliding leg.

[0006] Preferably, the inner side of the fixing block is provided with a sliding groove, and the inner wall of the sliding groove is provided with a plurality of mounting holes, and the clamp is screwed to the fixing block through the mounting holes.

[0007] Preferably, the clamp includes several terminals for abutment, one end of each terminal is fixedly connected to a fixing seat, a slide rod is hinged to one side of the fixing seat, a slider is inserted into the bottom end of the slide rod, a spring is fixedly connected between one end face of the slider and one side of the fixing seat, a threaded mating hole is opened on the end face of the slider away from the spring, a pre-tightening bolt is screwed into the mating hole, and the fixing block is clamped between the pre-tightening bolt and the mating hole.

[0008] Preferably, the slider has a disc-shaped structure, and the opposite end faces of the slider are respectively adapted to the slide groove; limit rods are fixedly connected at equal intervals along the end face of the slider away from the spring, and a plurality of limit grooves are opened on the inner wall of the slide groove, the limit grooves are correspondingly arranged with the limit rods, and the limit grooves and the limit rods are locked together for limiting.

[0009] Preferably, one end of the slide rod is laterally fixedly connected to a hinge rod, and both ends of the hinge rod are rotatably connected to hinge seats, which are fixedly connected to the fixed seat.

[0010] Preferably, one end of the slide rod is fixedly connected to a semi-circular ball head, and the side of the fixing seat is provided with a ball groove that matches the ball head, and the ball head slides in contact with the ball groove.

[0011] Preferably, the terminals are arranged on the periphery of the end face of the fixing base and are distributed at equal intervals.

[0012] Preferably, the preload includes a screw with reversed threads at both ends. The two ends of the screw are screwed to the bottom ends of two sliding legs respectively, and one end of the screw passes through the sliding leg and is fixedly connected to a crank handle.

[0013] Compared with the prior art, the present invention has the following advantages and technical effects: This invention places an irregularly shaped slurry pump casing between two clamping mechanisms and adjusts the preload of the preload device to regulate the clamping force and fix the slurry pump casing. The clamping device, with its springs, increases its adaptability to irregular shapes of the slurry pump casing. Furthermore, the multiple terminals of the clamping device provide multi-point support for the slurry pump casing, and the clamping position can be fully adapted by adjusting the installation angle of the clamping device, thus expanding the applicability of this invention. Attached Figure Description

[0014] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a side view of the three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the exploded structure of the clamp; Figure 3 This is a side view of the three-dimensional structure of the gripper. Figure 4 This is a side view of the three-dimensional structure of the slider; Figure 5 This is a side view of the three-dimensional structure of the fixed block; Figure 6 This is a side view of the three-dimensional structure of the fixed base.

[0015] The components are as follows: 1. Sliding leg; 2. Worktable; 3. Mounting block; 4. Fixing block; 5. Sliding groove; 6. Mounting hole; 7. Terminal; 8. Fixing seat; 9. Sliding rod; 10. Sliding block; 11. Spring; 12. Connecting hole; 13. Preload bolt; 14. Limiting rod; 15. Limiting groove; 16. Hinge rod; 17. Hinge seat; 18. Ball head; 19. Ball groove; 20. Crank handle; 21. Screw. Detailed Implementation

[0016] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] It should be noted that all components in the technical solution of this application require necessary additional facilities for water supply, oil supply, power supply, and gas supply for driving and / or control. Unless otherwise stated, they are assumed to be used and equipped with existing technology and no special explanation is required.

[0018] It should be noted that, in order to make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Depend on Figure 1-6 The device shown is a slurry pump casing processing device, which is set on the workbench 2 of the processing machine. It includes a clamping mechanism and a pre-tightener. There are two clamping mechanisms. The clamping mechanism includes a sliding leg 1. A T-shaped groove is opened on the top surface of the workbench 2. The sliding leg 1 is slidably connected to the T-shaped groove opened on the workbench 2. An installation block 3 is fixedly connected to the top of the sliding leg 1. An arc-shaped fixing block 4 is fixedly connected to one side of the installation block 3. Several clamps are detachably connected to the inner side wall of the fixing block 4. The two fixing blocks 4 are symmetrically arranged about the center of the workbench 2. The two ends of the pre-tightener pass through the sliding leg 1 and are screwed to the sliding leg 1.

[0020] Furthermore, the mounting block 3 has a clearance groove on its side, which facilitates the operation of the pre-tightening bolt 13 using existing tools and reduces interference.

[0021] In a further optimized design, a groove 5 is provided on the inner side of the fixing block 4, and several mounting holes 6 are provided on the inner wall of the groove 5. The clamp is screwed to the fixing block 4 through the mounting holes 6. The mounting holes 6 are evenly spaced, and the clamp is fixedly installed in the groove 5 by pre-tightening bolts 13.

[0022] Further optimization of the design: The clamp includes several terminals 7 for contact. One end of each terminal 7 is fixedly connected to a fixed base 8. A slide rod 9 is hinged to one side of the fixed base 8. One end face of a slider 10 has an insertion hole that matches and slides into the slide rod 9. A spring 11 is fixedly connected between one end face of the slider 10 and one side of the fixed base 8. The end face of the slider 10 away from the spring 11 has a threaded mating hole 12. A pre-tightening bolt 13 is screwed into the mating hole 12. A fixing block 4 is clamped between the pre-tightening bolt 13 and the mating hole 12. The hinge between the fixed base 8 and the slide rod 9 allows for adaptive adjustment of the relative angle between the fixed base 8 and the outer surface of the slurry pump casing, facilitating contact between the terminal 7 and the slurry pump casing. When the terminal 7 contacts the slurry pump casing, adjusting the pre-tightening device brings all the clamps closer together, causing compression of the terminal 7 and the fixed base 8. The fixed base 8 compresses the spring 11, allowing the slide rod 9 to slide within the insertion hole until the slurry pump casing is securely fixed.

[0023] Further optimization of the design involves a disc-shaped slider 10, with its opposite end faces adapted to the slide groove 5. Limiting rods 14 are fixedly connected at equal intervals along the end face of the slider 10 away from the spring 11. Several limiting grooves 15 are formed on the inner wall of the slide groove 5, corresponding to the limiting rods 14 and engaging with them. By adjusting the engagement of the limiting rods 14 with different limiting grooves 15, the rotation angle of the slider 10 can be adjusted, thereby allowing for angle adjustment of the fixed seat 8 hinged to the slide rod 9, facilitating adaptation to the outer wall of the slurry pump casing.

[0024] Furthermore, the slide bar 9 is a square bar, which can slide in the socket and also resist the torque generated when the fixed seat 8 is adapted to the outer wall of the slurry pump casing through the square cross section, thereby improving the stability of the clamp and reducing the lateral torque on the spring 11.

[0025] In a further optimized design, a hinge rod 16 is horizontally fixedly connected to one end of the slide rod 9. Both ends of the hinge rod 16 are rotatably connected to hinge seats 17, which are fixedly connected to the fixed seat 8. A semi-circular ball head 18 is fixedly connected to one end of the slide rod 9. A ball groove 19, adapted to the ball head 18, is provided on the side of the fixed seat 8, allowing the ball head 18 to slide in contact with the ball groove 19. The hinge rod 16 and the hinge seat 17 form an axial hinge, and the ball head 18 and the ball groove 19 form a spherical hinge. This design facilitates changing the angle of the fixed seat 8 and provides damping through the spherical hinge, improving the stability of the fixed seat 8 after manual angle adjustment.

[0026] The scheme was further optimized so that terminals 7 were arranged on the periphery of the end face of the fixing base 8 and distributed at equal intervals.

[0027] The design is further optimized so that the pre-tightener includes a screw 21 with reversed threads at both ends. Both ends of the screw 21 are screwed to the bottom ends of two sliding legs 1, and one end of the screw 21 passes through the sliding leg 1 and is fixedly connected to a handle 20. The handle 20 drives the screw 21 to move the two sliding legs 1 in opposite directions, thereby causing the two clamps to move in opposite directions, thus enabling the clamps to clamp and release the slurry pump casing.

[0028] The working process of this embodiment is as follows: First, the entire device is installed on the worktable 2 of the processing machine, ensuring that the T-slot on the top surface of the worktable 2 is free of debris to ensure that the sliding leg 1 can slide smoothly along the T-slot. Then, the clamps of the two clamping mechanisms are pre-adjusted according to the outer dimensions and outer wall curvature of the slurry pump casing to be processed.

[0029] Next, adjust the angle of the clamp in three steps.

[0030] First, loosen the pre-tightening bolt 13 so that the slider 10 can move within the groove 5 inside the fixed block 4.

[0031] The second step is to move the slider 10 to the corresponding mounting hole 6 in the slide groove 5 according to the distribution of the points where the pump casing needs to be clamped. At the same time, observe the limiting rod 14 on the end face of the slider 10 away from the spring 11, adjust the rotation angle of the slider 10 so that the limiting rod 14 is engaged in the corresponding limiting groove 15 on the inner wall of the slide groove 5. By limiting the engagement between the limiting rod 14 and the limiting groove 15, the rotation angle of the slider 10 is fixed, thereby driving the fixed seat 8 hinged to the slide rod 9 to be adjusted to the angle that matches the outer wall of the pump casing.

[0032] The third step is to tighten the pre-tightening bolt 13 so that it engages with the mating hole 12, thus fixing the slider 10 in the groove 5 of the fixing block 4, thereby completing the pre-fixation of the position and angle of a single clamp. Since the terminals 7 are evenly spaced on the periphery of the end face of the fixing base 8, this adjustment process ensures that multiple terminals 7 can accurately correspond to the support points on the outer wall of the pump casing. Next, the irregular slurry pump casing to be processed is hoisted between the two clamping mechanisms, so that the outer wall of the pump casing initially fits against the terminals 7 of each clamp. At this time, the fixed seat 8 achieves angle self-adaptation through two hinge structures: on the one hand, the hinge rod 16 at one end of the slide rod 9 forms an axial hinge with the hinge seat 17 on the fixed seat 8, which can realize the rotation of the fixed seat 8 around the hinge rod 16; on the other hand, the semi-spherical head 18 at one end of the slide rod 9 slides into contact with the ball groove 19 on the side of the fixed seat 8 to form a ball hinge, which can not only further expand the angle adjustment range of the fixed seat 8, but also ensure the temporary stability of the fixed seat 8 after angle adjustment through the damping effect of the ball hinge, ensuring that the terminals 7 can tightly abut against the outer wall of the pump casing, and completing the initial positioning of the pump casing. Finally, the crank handle 20 of the pretensioner is rotated, which drives the screw 21 to rotate. Since the threads at both ends of the screw 21 are reversed, and both ends of the screw 21 are screwed to the bottom ends of the two sliding legs 1 respectively, the rotation of the screw 21 drives the two sliding legs 1 to move in opposite directions along the T-slot of the worktable 2, thereby causing the mounting block 3, fixing block 4, and clamp at the top of the two sliding legs 1 to move synchronously towards the pump housing. As the clamp moves closer, the pressure of the terminal 7 on the outer wall of the pump housing gradually increases. When the terminal 7 contacts the outer wall of the pump housing to a certain extent, the fixing seat 8 will be subjected to the reaction force of the pump housing, thereby compressing the spring 11. The compression of spring 11 pushes slide rod 9 along the insertion hole on the end face of slider 10 (slide rod 9 is preferably a square rod, which ensures smooth sliding and resists the torque generated when the fixed seat 8 is fitted to the pump casing, avoiding lateral torque on spring 11), until all the terminals 7 of the clamps form a uniform and stable supporting force on the pump casing. At this point, stop turning the crank handle 20, the pre-tightening device stops operating, and the pump casing is firmly fixed between the two clamping mechanisms, completing the clamping and fixing process. After the slurry pump casing is processed, reverse the operation to release the slurry pump casing and continue to the next processing step. Through the above implementation process, this device can quickly adapt to and stably clamp slurry pump casings of different specifications and shapes, meeting the needs of high-efficiency and high-precision processing. Moreover, the entire operation process is convenient and does not require the replacement of the entire set of fixtures, which greatly improves processing efficiency and applicability.

[0033] The above are merely preferred embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A slurry pump casing processing device, mounted on the workbench (2) of a processing machine, characterized in that, It includes a clamping mechanism and a pre-tightener; the clamping mechanism is provided in two parts, the clamping mechanism includes a sliding leg (1), the sliding leg (1) is slidably connected to the worktable (2), the top of the sliding leg (1) is fixedly connected to an installation block (3), one side of the installation block (3) is fixedly connected to an arc-shaped fixing block (4), the inner side wall of the fixing block (4) is detachably connected to several clamps, and the two fixing blocks (4) are symmetrically arranged about the center of the worktable (2); the two ends of the pre-tightener pass through the sliding leg (1) and are screwed to the sliding leg (1).

2. The slurry pump casing processing device according to claim 1, characterized in that: The inner side of the fixing block (4) is provided with a sliding groove (5), and the inner wall of the sliding groove (5) is provided with a plurality of mounting holes (6). The clamp is screwed to the fixing block (4) through the mounting holes (6).

3. The slurry pump casing processing device according to claim 2, characterized in that: The clamp includes several terminals (7) for abutment. One end of each terminal (7) is fixedly connected to a fixed base (8). A slide rod (9) is hinged to one side of the fixed base (8). A slider (10) is inserted into the bottom end of the slide rod (9). A spring (11) is fixedly connected between one end face of the slider (10) and one side face of the fixed base (8). A threaded mating hole (12) is opened on the end face of the slider (10) away from the spring (11). A pre-tightening bolt (13) is screwed into the mating hole (12). The fixing block (4) is clamped between the pre-tightening bolt (13) and the mating hole (12).

4. The slurry pump casing processing device according to claim 3, characterized in that: The slider (10) has a disc-shaped structure, and the opposite end faces of the slider (10) are respectively adapted to the slide groove (5); a limit rod (14) is fixedly connected at equal intervals along the end face of the slider (10) away from the spring (11), and a number of limit grooves (15) are opened on the inner wall of the slide groove (5). The limit grooves (15) are correspondingly arranged with the limit rods (14), and the limit grooves (15) and the limit rods (14) are limited and engaged.

5. The slurry pump casing processing device according to claim 3, characterized in that: One end of the slide rod (9) is horizontally fixedly connected to a hinge rod (16), and both ends of the hinge rod (16) are rotatably connected to hinge seats (17), and the hinge seats (17) are fixedly connected to the fixed seat (8).

6. The slurry pump casing processing device according to claim 5, characterized in that: One end of the slide rod (9) is fixedly connected to a semi-circular ball head (18), and the side of the fixed seat (8) is provided with a ball groove (19) that is adapted to the ball head (18), and the ball head (18) and the ball groove (19) slide in contact.

7. The slurry pump casing processing device according to claim 3, characterized in that: The terminals (7) are arranged on the periphery of the end face of the fixed base (8) and are distributed at equal intervals.

8. The slurry pump casing processing device according to claim 1, characterized in that: The pretensioner includes a screw (21) with the threads at both ends of the screw (21) arranged in opposite directions. The two ends of the screw (21) are respectively screwed to the bottom ends of two sliding legs (1). One end of the screw (21) passes through the sliding leg (1) and is fixedly connected to a crank (20).

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