A kind of riveting welding tool for mud pump main bearing end cover
By combining the top fixing mechanism and the side fixing mechanism, the precise positioning and fixing of the end cover of the mud pump main bearing is achieved, which solves the problems of inaccurate positioning and low efficiency in traditional processes, and improves production efficiency and applicability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAOJI YUXING NONFERROUS METALS CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-03
AI Technical Summary
The traditional riveting and welding process for the main bearing end cover of mud pumps lacks precise positioning tooling, resulting in positional deviations and low production efficiency. Furthermore, it lacks versatility, increasing production costs and time.
The top and side fixing mechanisms are used to precisely position and fix the top and inner sidewalls of the inner cavity of the mud pump main bearing end cover, respectively. Components such as electric push rods, electromagnets, buffers and pressure sensors are used to achieve precise positioning and firm fixation, which can adapt to end covers of different specifications.
It improves the precision and quality of riveting and welding, reduces the product defect rate, increases production efficiency, and is applicable to end caps of various specifications, thus reducing production costs.
Smart Images
Figure CN224445080U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mud pump manufacturing technology, and in particular to a tooling for facilitating the riveting and welding of the end cover of the main bearing of a mud pump. Background Technology
[0002] Mud pumps are a crucial component of drilling equipment, and the quality of their main bearing end caps directly affects the pump's performance and lifespan. Main bearing end caps are typically assembled and welded from multiple parts, and traditional riveting and welding processes present numerous challenges.
[0003] On the one hand, due to the lack of precise positioning fixtures, positional deviations can easily occur during the assembly of various components, making it difficult to guarantee the dimensional accuracy of the welded rear end cover. This affects the assembly accuracy with the main bearing, and consequently, the overall operational stability of the mud pump. On the other hand, traditional fixtures are not convenient to operate, requiring workers to spend a significant amount of time adjusting and securing components, resulting in low production efficiency. Moreover, different fixtures are often required for mud pump main bearing end covers of different specifications, increasing production costs and manufacturing cycles.
[0004] Therefore, there is an urgent need for a riveting and welding fixture that can achieve precise positioning, is easy to operate, and has a certain degree of versatility to solve the above problems. Utility Model Content
[0005] The purpose of this application is to provide a tooling for facilitating the riveting and welding of the end cover of the main bearing of a mud pump, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this application provides the following technical solution: a tooling for facilitating the riveting and welding of the end cover of the main bearing of a mud pump, including a positioning table;
[0007] A top fixing mechanism is used to pre-fix the top of the inner cavity of the main bearing end cover of the mud pump. The top fixing mechanism includes a first electric push rod, a slider and an electromagnet. The electromagnet is fixed to the top of the slider, and the first electric push rod drives the slider to slide up and down.
[0008] A side fixing mechanism is used to support and fix the inner wall of the main bearing end cover of the mud pump. The side fixing mechanism includes a second electric push rod, a buffer, a pressure sensor and a squeezing plate. The output end of the second electric push rod is fixedly installed with a buffer, and the outer end of the buffer is fixedly connected to the squeezing plate through the pressure sensor.
[0009] Preferably, the side fixing mechanism is provided in a plurality of units and is evenly spaced along the outer periphery of the positioning platform, and the second electric push rod is fixedly connected to the positioning platform.
[0010] Preferably, a controller is fixedly installed on the positioning platform, and the controller is electrically connected to the second electric push rod and the pressure sensor.
[0011] Preferably, a sliding groove is provided at the top center of the positioning platform, the bottom end of the first electric push rod is fixedly connected to the bottom end of the sliding groove, the output end of the first electric push rod is fixedly connected to the slider, and the slider and the sliding groove are slidably connected in the vertical direction.
[0012] Preferably, the extrusion plate is an arc-shaped steel plate structure.
[0013] Preferably, the outer surface of the electromagnet is insulated.
[0014] Preferably, the first electric actuator, the second electric actuator, the controller, and the pressure sensor are electrically connected to an external power source.
[0015] In summary, the technical effects and advantages of this utility model are as follows:
[0016] This fixture uses a top fixing mechanism and a side fixing mechanism to position and fix the top and inner wall of the inner cavity of the mud pump main bearing end cover, respectively. The top fixing mechanism uses a first electric push rod to drive an electromagnet to precisely adjust the position and fix it in place. The side fixing mechanism uses a second electric push rod to push an extrusion plate to support the inner wall of the end cover. A pressure sensor, in conjunction with a controller, ensures appropriate pressure, thereby achieving precise positioning and firm fixation of the mud pump main bearing end cover, effectively improving the accuracy and quality of riveting and welding.
[0017] The buffer in the side fixing mechanism can buffer the impact when the extrusion plate contacts the inner wall of the mud pump main bearing end cover, thus preventing damage to the end cover due to excessive impact force and reducing the product defect rate.
[0018] The first electric actuator can adjust the height of the electromagnet to accommodate mud pump main bearing end covers of different heights; the side fixing mechanism is evenly spaced along the outer periphery of the positioning platform, and can be reasonably arranged according to the size and shape of the end cover, so that the tooling can be applied to mud pump main bearing end covers of various specifications. Attached Figure Description
[0019] 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 of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of a riveting and welding fixture for facilitating the assembly of the main bearing end cover of a mud pump, as described in an embodiment of this application.
[0021] Figure 2 This application provides a tooling for facilitating the riveting and welding of the end cover of the main bearing of a mud pump. Figure 1 Enlarged structural diagram at point A;
[0022] Figure 3 This is a partial structural schematic diagram of a tooling for facilitating the riveting and welding of the end cover of the main bearing of a mud pump, as described in an embodiment of this application.
[0023] Figure 4 This is a schematic diagram of the structure of a tooling for facilitating the riveting and welding of the end cover of the main bearing of a mud pump, as described in an embodiment of this application.
[0024] In the figure: 1. Positioning platform; 2. Side fixing mechanism; 3. Top fixing mechanism; 4. First electric push rod; 5. Slider; 6. Electromagnet; 7. Slide groove; 8. Second electric push rod; 9. Buffer; 10. Pressure sensor; 11. Extrusion plate; 12. Controller; 13. Mud pump main bearing end cover. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] In the description of this disclosure, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, 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, and therefore should not be construed as a limitation of this disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0027] It should also be noted that all standard parts used in this application are commercially available, and can be custom-made according to the description and drawings. Unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances, and unless explicitly limited, machinery, parts, and equipment can all adopt conventional models in the prior art.
[0028] In this document, the term "comprising" is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0029] Example: Reference Figure 1-4 The following describes in detail the specific implementation process of the riveting and welding fixture for the end cover of the main bearing of a mud pump:
[0030] Positioning table: Positioning table 1 is the basic support component of the entire tooling, providing a platform for the installation and operation of other mechanisms. Positioning table 1 must be placed on a stable working surface to ensure the stability of the entire tooling during operation.
[0031] Side fixing mechanism: Several side fixing mechanisms 2 are evenly spaced along the outer periphery of the positioning platform 1. The second electric push rod 8 is fixedly connected to the positioning platform 1. During the riveting and welding of the mud pump main bearing end cover 13, the mud pump main bearing end cover 13 is placed on the positioning platform 1, and the side fixing mechanism 2 is activated. The second electric push rod 8 starts working, and its output end extends forward, pushing the buffer 9 forward. The buffer 9 acts as a buffer to avoid excessive impact on the inner wall of the mud pump main bearing end cover 13 and damage to the end cover. The outer end of the buffer 9 is fixedly connected to the extrusion plate 11 through the pressure sensor 10. The extrusion plate 11 is an arc-shaped steel plate structure, which can better fit the inner wall of the mud pump main bearing end cover 13. As the second electric push rod 8 pushes, the extrusion plate 11 gradually contacts the inner wall of the mud pump main bearing end cover 13 and applies pressure. The pressure sensor 10 monitors the pressure in real time and transmits the data to the controller 12.
[0032] Top Fixing Mechanism: The top fixing mechanism 3 is used to pre-fix the top of the inner cavity of the mud pump main bearing end cover 13. A groove 7 is provided at the center of the top of the positioning platform 1. The bottom end of the first electric push rod 4 is fixedly connected to the bottom end of the groove 7, and the output end of the first electric push rod 4 is fixedly connected to the slider 5. The slider 5 and the groove 7 are slidably connected in the vertical direction. After the mud pump main bearing end cover 13 is placed on the positioning platform 1, the first electric push rod 4 is activated, driving the slider 5 to slide up and down within the groove 7. An electromagnet 6 is fixed to the top of the slider 5. The outer surface of the electromagnet 6 is insulated to ensure safe use. When the slider 5 lowers the electromagnet 6 to a suitable position, the electromagnet 6 is energized, generating magnetic force that attracts the top of the inner cavity of the mud pump main bearing end cover 13, achieving pre-fixation.
[0033] First electric actuator: The first electric actuator 4 is the power source of the top fixing mechanism 3. It precisely controls the up and down movement of the slider 5 according to actual needs, thereby adjusting the position of the electromagnet 6 to adapt to the mud pump main bearing end cover 13 at different heights.
[0034] Slider: Driven by the first electric push rod 4, slider 5 slides vertically along the slide groove 7, providing stable moving support for electromagnet 6 and ensuring that electromagnet 6 can accurately reach the predetermined position at the top of the inner cavity of the mud pump main bearing end cover 13.
[0035] Electromagnet: Electromagnet 6 generates magnetic force when energized, attracting and fixing the top of the inner cavity of the mud pump main bearing end cover 13. Its outer surface is insulated to prevent safety accidents such as leakage during operation.
[0036] Slide groove: Slide groove 7 provides a sliding track for slider 5, ensuring that slider 5 can move smoothly in the vertical direction, thereby ensuring that electromagnet 6 accurately fixes the end cover 13 of the mud pump main bearing.
[0037] Second electric actuator: The second electric actuator 8 is the power source of the side fixing mechanism 2. It pushes the buffer 9, pressure sensor 10 and extrusion plate 11 to move towards the inner wall of the mud pump main bearing end cover 13, thereby supporting and fixing the inner wall of the end cover.
[0038] Buffer: The buffer 9 acts as a buffer when the second electric push rod 8 pushes the extrusion plate 11 to contact the inner wall of the mud pump main bearing end cover 13, reducing the impact force and protecting the end cover from damage.
[0039] Pressure sensor: Pressure sensor 10 monitors the pressure applied by the extrusion plate 11 to the inner wall of the mud pump main bearing end cover 13 in real time, and transmits the pressure data to the controller 12 so that the controller 12 can control the second electric push rod 8 according to the pressure.
[0040] Extrusion plate: The extrusion plate 11 is an arc-shaped steel plate structure that matches the shape of the inner wall of the mud pump main bearing end cover 13. It can apply pressure evenly to the inner wall of the end cover to achieve stable support and fixation.
[0041] Controller: A controller 12 is fixedly installed on the positioning platform 1. The controller 12 is electrically connected to the second electric push rod 8 and the pressure sensor 10. Based on the pressure data fed back by the pressure sensor 10, the controller 12 determines whether the pressure of the extrusion plate 11 on the inner wall of the mud pump main bearing end cover 13 is appropriate. If the pressure is too high or too low, the controller 12 will adjust the working state of the second electric push rod 8 to keep the pressure within a suitable range and ensure the fixing effect of the end cover.
[0042] Mud pump main bearing end cover: The mud pump main bearing end cover 13 is the object to be riveted and welded. Through the coordinated action of the top fixing mechanism 3 and the side fixing mechanism 2, it is stably fixed on the positioning table 1 so as to carry out subsequent riveting and welding operations.
[0043] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A rivet welding tool for facilitating the assembly of a mud pump main bearing end cap, characterized by: include; Positioning station; A top fixing mechanism is used to pre-fix the top of the inner cavity of the main bearing end cover of the mud pump. The top fixing mechanism includes a first electric push rod, a slider and an electromagnet. The electromagnet is fixed to the top of the slider, and the first electric push rod drives the slider to slide up and down. A side fixing mechanism is used to support and fix the inner wall of the main bearing end cover of the mud pump. The side fixing mechanism includes a second electric push rod, a buffer, a pressure sensor and a squeezing plate. The output end of the second electric push rod is fixedly installed with a buffer, and the outer end of the buffer is fixedly connected to the squeezing plate through the pressure sensor.
2. The rivet welding tool for the bearing end cover of the main shaft of the slurry pump according to claim 1, characterized in that: The side fixing mechanism is provided in a plurality of units and is evenly spaced along the outer periphery of the positioning platform, and the second electric push rod is fixedly connected to the positioning platform.
3. The rivet welding tool for the bearing end cover of the main shaft of the slurry pump according to claim 1, characterized in that: A controller is fixedly installed on the positioning platform, and the controller is electrically connected to the second electric push rod and the pressure sensor.
4. The rivet welding tool for the bearing end cover of the main shaft of the slurry pump according to claim 1, characterized in that: The positioning platform has a sliding groove at the top center. The bottom end of the first electric push rod is fixedly connected to the bottom end of the sliding groove. The output end of the first electric push rod is fixedly connected to the slider. The slider and the sliding groove are slidably connected in the vertical direction.
5. The rivet welding tool for the bearing end cover of the main shaft of the slurry pump according to claim 1, characterized in that: The extrusion plate is an arc-shaped steel plate structure.
6. The rivet welding tool for the bearing end cover of the main shaft of the slurry pump according to claim 1, characterized in that: The outer surface of the electromagnet is insulated.
7. The rivet welding tool for the bearing end cover of the main shaft of the slurry pump according to claim 1, characterized in that: The first electric actuator, the second electric actuator, the controller, and the pressure sensor are electrically connected to an external power source.