Casting machining table with clamping function
By designing a clamping function casting processing table suitable for different models of centrifugal pump impellers, the problem of insufficient versatility of the clamping mechanism was solved, and efficient clamping and grinding processing was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-04-14
AI Technical Summary
In the existing technology, the clamping mechanism of centrifugal pump impeller is difficult to adapt to the clamping requirements of different models, resulting in frequent clamping changes, increasing the complexity of operation and clamping positioning time, and affecting grinding efficiency.
Design a casting processing table with clamping function, using at least two clamps, each with an adjustment groove and adjustment plate. Through the cooperation of the drive component and the adjustment plate, it can adapt to the clamping requirements of cylindrical and conical hubs, thus achieving the versatility of the clamps.
It enables flexible clamping of impellers of different centrifugal pump models, eliminates the clamping change step, shortens the clamping and positioning time, and improves grinding efficiency.
Smart Images
Figure CN224115936U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of impeller casting processing technology, specifically, it relates to a casting processing table with clamping function. Background Technology
[0002] Centrifugal pump impellers are key components, and their manufacturing process typically employs casting. However, during casting, imperfections such as flash and burrs often remain on the impeller surface. To improve the impeller's surface quality, a clamping mechanism must be used to securely hold the centrifugal pump impeller, followed by meticulous processing of these imperfections using specialized grinding tools on a grinding table.
[0003] It is worth noting that centrifugal pump impellers are designed with different types of hubs to meet the operational requirements of various pumps. Specifically, common hub shapes can be broadly categorized into cylindrical and conical types. Although these different impeller models share similarities in their grinding processes and are often processed in the same batch to optimize the production process and reduce equipment downtime and mold change frequency, they differ significantly in their clamping requirements.
[0004] The clamping mechanism, acting as a bridge connecting the equipment and the workpiece, is often designed to be optimized for specific impeller models. However, in actual production, the versatility of clamps is limited, making them difficult to apply directly to different centrifugal pump impeller models. This means that whenever the impeller model is changed, operators need to spend time finding and installing a matching clamp. This problem is particularly prominent in batch processing, as frequent clamp changes not only increase operational complexity but also significantly prolong the clamping and positioning time of the centrifugal pump impeller, thus adversely affecting grinding efficiency.
[0005] In summary, the clamping and positioning problem is one of the key factors restricting production efficiency during the grinding process of centrifugal pump impellers after casting. To improve overall production efficiency, it is urgent to develop a more flexible and universal clamping mechanism to meet the clamping requirements of different centrifugal pump impeller models. Utility Model Content
[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a casting processing table with clamping function.
[0007] In this invention, the casting processing table with clamping function is used in conjunction with a multi-axis grinding machine commonly used for grinding centrifugal pump impellers. After the casting processing table with clamping function fixes the hub of the centrifugal pump impeller, the multi-axis grinding machine can be used to grind the blades of the centrifugal pump impeller.
[0008] To achieve the aforementioned objectives, the technical solution adopted by this utility model includes:
[0009] At least two clamps are provided, which together hold the hub of the centrifugal pump impeller. Each clamp has a receiving space, and a clamping plate is rotatably connected within the receiving space. An adjustment groove is provided within the clamping plate, and the adjustment groove has an inclined surface. An adjustment plate is vertically slidably disposed within the receiving space, and the adjustment plate overlaps with the inclined surface.
[0010] Preferably, the bottom cross-sectional area of the adjusting groove is larger than the top cross-sectional area of the adjusting groove.
[0011] In this invention, the cross-sectional area of the adjustment groove gradually decreases from the bottom to the top, so that the inclination of the inclined surface is sufficient for the clamp to rotate.
[0012] Preferably, a driving member is provided on one side of the clamp, and the driving member is used to drive at least two clamps to move simultaneously.
[0013] In this invention, at least two clamps are in close contact in the initial state. When clamping a centrifugal pump impeller with a cylindrical hub, the cylindrical hub is placed on the clamp, and then the clamp is driven to move towards the inner wall of the cylindrical hub by the drive component. In this way, the clamp can be adapted to clamp centrifugal pump impellers of different sizes. By adjusting the distance between the clamps, it can adapt to cylindrical hubs of different sizes and clamp them in place, making the clamp versatile.
[0014] In this invention, when clamping a centrifugal pump impeller with a conical hub, the clamp is still driven to move towards the inner wall of the conical hub by the drive component. The difference is that by controlling the vertical upward movement of the adjusting plate, the adjusting plate can push the inclined surface to rotate the clamping plate, thereby adjusting the tilt angle of the clamping plate. This allows the clamping plate to be suitable for clamping and fixing conical hubs of different diameters, so that the clamping plate can fit tightly against the inner wall of the conical hub. Conical hubs of different diameters correspond to centrifugal pump impellers with conical hubs of different sizes, making the casting processing table with clamping function versatile.
[0015] Preferably, it also includes a traction rope, one end of which is connected to an adjustment plate, and the other end of which is connected to a control component.
[0016] Preferably, the control component includes an electric telescopic rod connected within the clamp, the telescopic end of which is fixedly connected to the traction rope.
[0017] Preferably, the control component includes a servo motor connected within the fixture, the drive end of the servo motor being connected to a rope winding roller, and one end of the traction rope being fixedly connected to the rope winding roller.
[0018] Compared with the prior art, the advantages of this utility model include:
[0019] (1) The present invention provides a casting processing table with clamping function, which can be used for the same batch clamping and grinding of centrifugal pump impellers with cylindrical and conical hubs. Compared with the prior art, the step of changing the fixture is eliminated, the time consumed by clamping and positioning the centrifugal pump impeller is reduced, and the efficiency of subsequent grinding of centrifugal pump impeller is improved.
[0020] (2) The present invention provides a casting processing table with clamping function, which can clamp and position centrifugal pump impellers of different sizes, so that the clamping function of the casting processing table with clamping function is universal, making the clamping of centrifugal pump impellers more flexible, and promoting the overall production efficiency of centrifugal pump impellers. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is an overall schematic diagram of a casting processing table with clamping function according to the present invention;
[0023] Figure 2 This is a schematic diagram of the fixture in this utility model;
[0024] Figure 3 This is a schematic diagram of the top connection structure of the clip in this utility model;
[0025] Figure 4 This is a schematic diagram of the bottom connection structure of the clip in this utility model;
[0026] Figure 5 This is a schematic diagram of the connection structure of the rope winding roller in this utility model.
[0027] Figure label:
[0028] 1. Workbench; 2. Column; 3. Base plate; 4. Cylinder; 5. Fixture; 6. Clamping plate; 7. Mounting base; 8. Shorting rod; 9. T-joint end; 10. Slide rail; 11. Adjustment groove; 12. Inclined surface; 13. Guide rod; 14. Directional wheel; 15. Traction rope; 16. Electric telescopic rod; 17. Adjustment plate; 18. Round head; 19. Rope winding roller; 20. Servo motor; 21. Time relay. Detailed Implementation
[0029] In view of the shortcomings of the prior art, the inventor of this utility model has, through long-term research and extensive practice, proposed the technical solution of this utility model. The following will further explain and illustrate the technical solution, its implementation process, and its principles in conjunction with the accompanying drawings and specific implementation examples.
[0030] It should be noted that the embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. The described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, the present invention covers any substitutions, modifications, equivalent methods and solutions made within the spirit, principles and scope of the present invention as defined by the claims. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0031] In the description of this application, the terms "first," "second," "third," and similar words do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "a" or "one," and similar words, do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including," and similar words, mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including," and their equivalents, but do not exclude other elements or objects. The terms "connected" or "linked," and similar words, are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.
[0032] In the description of this application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, when using positional terms such as "both sides," "outer side," and "upper and lower," it should be understood that they are used only for ease of understanding and description, taking into account that the structure may be oriented to other positions.
[0033] In the description of this application, unless otherwise expressly specified and limited, the technical or scientific terms used shall have the ordinary meaning understood by a person with ordinary skills in the art to which this application pertains. Terms such as “installation,” “connection,” and “joining” shall be interpreted broadly, for example, as fixed connection, detachable connection, mating connection, or integral connection. For a person skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0034] This utility model embodiment aims to introduce and explain the structural composition of a casting processing table with clamping function and the cooperation relationship between the various components. Unless otherwise specified, the dimensions, materials, and manufacturing processes of the various components in the casting processing table with clamping function in this utility model embodiment can be selected according to specific circumstances, and no special limitations or explanations are made here.
[0035] Furthermore, to provide the public with a better understanding of this utility model, certain specific details are described in detail in the following description. However, those skilled in the art can fully understand this utility model even without these detailed descriptions.
[0036] Example 1
[0037] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 A casting processing table with clamping function includes a worktable 1, which is used to support the centrifugal pump impeller.
[0038] Specifically, the bottom of the workbench 1 is fixedly connected to four columns 2, and the bottom of the four columns 2 is fixedly connected to a base plate 3. The top of the workbench 1 is provided with three clamps 5. The workbench 1 has three sliding grooves that are adapted to the clamps 5. The clamps 5 are slidably set in the corresponding sliding grooves. The sliding grooves are fixedly connected to the slide rails 10. The clamps 5 have a through groove that is adapted to the slide rails 10. The clamps 5 slide on the slide rails 10 through the groove.
[0039] In this embodiment, after the hub of the centrifugal pump impeller is fitted onto the three clamps 5, the workbench 1 bears the weight of the centrifugal pump impeller, and the three clamps 5 only need to clamp the hub to position the centrifugal pump impeller.
[0040] Specifically, a receiving space is provided on one side of the top of the clamp 5. The receiving space is a mounting groove. A clamping piece 6 is rotatably connected in the mounting groove. One end of the clamping piece 6 is rotatably connected to the mounting groove, while the other end of the clamping piece 6 is left with a sufficient gap for the clamping piece 6 to rotate.
[0041] Specifically, a control groove is provided in the installation groove, an adjustment plate 17 is slidably arranged in the control groove, an adjustment groove 11 is provided in the clamp 6, the adjustment groove 11 has an inclined surface 12, and the adjustment groove 11 contacts the adjustment plate 17 through the inclined surface 12.
[0042] In this embodiment, the clamping plate 6 can be rotated by the pressure of the inclined plane 12 when the adjusting plate 17 moves vertically. This allows the clamping plate 6 to be adjusted according to the slope of the inner wall of the conical hub, so that the clamping plate 6 can fit against the inner wall of the conical hub.
[0043] Specifically, the adjusting plate 17 is plate-shaped, and the end that is used to contact the inclined surface 12 is provided with a round head 18, so that the adjusting plate 17 contacts the inclined surface 12 with the arc surface of the round head 18. Compared with the contact between surfaces, the contact between points and surfaces is more stable, which facilitates the use of the clamping piece 6.
[0044] Specifically, a guide opening is provided through the adjusting plate 17, and a guide rod 13 is inserted into the guide opening. Both ends of the guide rod 13 are fixedly connected to the inner wall of the control groove. By moving the adjusting plate 17 on the guide rod 13, the movement direction of the adjusting plate 17 can be guided so that it can only move vertically.
[0045] Please see Figure 3 and Figure 4 A casting processing table with clamping function, including a traction rope 15.
[0046] Specifically, one end of the traction rope 15 is connected to the adjusting plate 17, and the other end of the traction rope 15 is connected to a control component. Two directional pulleys 14 with the same installation height are rotatably connected inside the clamp 5. The directional pulleys 14 can change the direction of movement of the traction rope 15 and reduce the sliding friction between the traction rope 15 and the clamp 5.
[0047] In this embodiment, the control component includes an electric telescopic rod 16 fixedly connected inside the clamp 5. The clamp 5 has a telescopic space for moving the electric telescopic rod 16, so that when the telescopic end of the electric telescopic rod 16 retracts, it can pull the adjusting plate 17 to move upward through the traction rope 15. When the telescopic end of the electric telescopic rod 16 extends, it will slide back to its original position by the weight of the adjusting plate 17, thereby controlling the rotation of the clamp 6.
[0048] Specifically, the control unit is powered externally, and a time relay 21 is installed on the power line. The time relay 21 can set different power-on intervals according to different models of centrifugal pump impellers, thereby precisely controlling the spacing between the three clamps 5, so that the clamps 5 can fit against the inner wall of the centrifugal pump impeller hub.
[0049] Please see Figure 1 A casting processing table with clamping function includes a drive unit for simultaneously driving three clamps 5 to move.
[0050] Specifically, the driving component includes a cylinder 4 fixedly connected to the bottom of the workbench 1. A telescopic port is provided through the middle of the workbench 1 for the telescopic end of the cylinder 4 to move. The telescopic end of the cylinder 4 extends along the telescopic port to the top of the workbench 1. A three-way connector 9 is fixedly connected to one end of the telescopic end of the cylinder 4 extending to the top of the workbench 1. The three-way connector 9 has three ports, and a shorting rod 8 is rotatably connected to each of the three ports. The other end of the shorting rod 8 is rotatably connected to a mounting base 7. The mounting base 7 is fixedly connected to a clamp 5 for positioning.
[0051] In this embodiment, the movement of the telescopic end of the cylinder 4 drives the clamp 5 to move, so that the clamp 5 can clamp or release the centrifugal pump impeller.
[0052] In this embodiment, the specific implementation steps for clamping the centrifugal pump impeller are as follows:
[0053] S1. In the initial state, the tee end 9 is close to the table surface of the workbench 1, and the three clamps 5 are in the minimum distance state within the range of motion.
[0054] S2. When clamping, the cylindrical hub of the centrifugal pump impeller is placed on the three clamps 5, supported by the workbench 1. Then, the cylinder 4 is activated to extend its telescopic end and push the three-way end 9 to move. At the same time, the short connecting rod 8 will rotate and push the clamps 5 to move towards the inner wall of the hub. When the clamps 5 are in contact with the inner wall of the hub, the clamping and fixing of the centrifugal pump impeller can be completed.
[0055] S3. When it is necessary to clamp the conical hub of the centrifugal pump impeller, based on the movement of the clamp 5 towards the inner wall of the hub in S2, the electric telescopic rod 16 is energized, so that the telescopic end of the electric telescopic rod 16 retracts and pulls the traction rope 15, so that the traction rope 15 can pull the adjusting plate 17 to move vertically upward. Through the compression of the adjusting plate 17 with the inclined plane 12 when it moves vertically, the clamping plate 6 can be rotated. In this way, according to the slope of the inner wall of the conical hub, the tilt angle of the clamping plate 6 is adjusted so that the clamping plate 6 can fit against the inner wall of the conical hub, thereby completing the clamping and fixing of the centrifugal pump impeller.
[0056] S4. After the centrifugal pump impeller is fixed, a multi-axis grinder can be used to grind the centrifugal pump impeller.
[0057] S5. After grinding, energize cylinder 4 again so that its telescopic end drives the three clamps 5 to move and reset, and the ground centrifugal pump impeller can be taken out.
[0058] Example 2
[0059] Please see Figure 5Based on Example 1, the control component is replaced with: a servo motor 20 is fixedly connected inside the clamp 5, and a rope winding roller 19 is fixedly connected to the drive end of the servo motor 20. The servo motor 20 drives the rope winding roller 19 to rotate and wind the traction rope 15, thereby controlling the movement of the adjusting plate 17. Compared with Example 1, the control accuracy of controlling the traction rope 15 by winding the rope winding roller 19 is higher. However, the control component in Example 1 has a simpler structure than the control component in Example 2, and is more convenient to install and operate.
[0060] It should be understood that the above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. It should not be considered that the specific implementation of this utility model is limited to these descriptions. For those skilled in the art to which this utility model pertains, several simple deductions or substitutions can be made without departing from the concept of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.
Claims
1. A casting processing table with clamping function, characterized in that, It includes at least two clamps (5), which together clamp the hub of the centrifugal pump impeller. Each clamp (5) has a receiving space, and a clamping plate (6) is rotatably connected in the receiving space. An adjustment groove (11) is provided in the clamping plate (6), and the adjustment groove (11) has an inclined surface (12). An adjustment plate (17) is vertically slidably arranged in the receiving space, and the adjustment plate (17) overlaps with the inclined surface (12).
2. A casting processing table with clamping function according to claim 1, characterized in that: The bottom cross-sectional area of the regulating groove (11) is larger than the top cross-sectional area of the regulating groove (11).
3. A casting processing table with clamping function according to claim 1, characterized in that: A driving member is provided on one side of the clamp (5), and the driving member is used to drive at least two clamps (5) to move simultaneously.
4. A casting processing table with clamping function according to claim 1, characterized in that: It also includes a traction rope (15), one end of which is connected to an adjusting plate (17), and the other end of which is connected to a control element.
5. A casting processing table with clamping function according to claim 4, characterized in that: The control unit includes an electric telescopic rod (16) connected within the clamp (5), the telescopic end of which is fixedly connected to the traction rope (15).
6. A casting processing table with clamping function according to claim 4, characterized in that: The control unit includes a servo motor (20) connected in the clamp (5), the drive end of the servo motor (20) is connected to a rope winding roller (19), and one end of the traction rope (15) is fixedly connected to the rope winding roller (19).