Multifunctional clamp device for finish machining of mechanical pump parts

Abstract

The invention discloses a multifunctional clamp device for finish machining of mechanical pump parts, and relates to the technical field of part machining. The multifunctional clamp device comprises a workbench, a clamping piece is rotatably connected to the center of the upper end face of the workbench, a supporting frame is fixedly connected to the upper end face of the workbench, an air cylinder is fixedly connected to the supporting frame, and a piston rod is fixedly connected to the output end of the air cylinder; a positioning cone is rotationally connected to the end, away from the air cylinder, of the piston rod, the positioning cone is located over the clamping piece, a welding head is fixedly connected to the outer surface of the piston rod, and a sealing ring is placed below the positioning cone. Therefore, the whole production process is simplified, time is saved, the situation that the production efficiency is low due to process splitting is reduced, and new defects such as scratches and deformation caused by improper operation in the carrying and transferring process of parts are avoided, and the welding quality and the sealing performance are affected.

Description

Technical Field

[0001] The present invention relates to the technical field of component processing, and specifically to a multifunctional fixture device for precision machining of mechanical pump components. Background Art

[0002] Mechanical pump components are the basic units that make up a mechanical pump. These components work together through precise fitting and cooperation to achieve the functions of the mechanical pump. However, the processing of mechanical pump components is a complex and delicate process. During the processing, strict control of dimensional accuracy, shape accuracy, and position accuracy is required to ensure the interchangeability and assembly accuracy of the components. Moreover, for the sealing components of the mechanical pump, such as mechanical seal seats or other sealing rings, welding is sometimes required before and after precision machining. In order to firmly fix these sealing components on the pump body or shaft to ensure their sealing performance, fixture devices are usually used to fix the components during the welding process to improve the stability of the mechanical pump components during the welding process;

[0003] During the welding and manufacturing process of mechanical pump components, ensuring the sealing performance of the welded joints is crucial. The existing clamping devices only have a single clamping and positioning function when fixing the components, and cannot detect the sealing performance of the welded joints of the mechanical pump components after welding. The sealing performance detection after welding usually needs to be carried out in another process, which not only results in the separation of the detection process from the welding process, increasing the complexity of the production process, but also introduces new defects due to improper operations during the handling and transfer process. Moreover, when it is detected that the sealing performance of the welded joint is poor, since the clamping device does not record any information during the welding process, it is very difficult to trace the specific source of the defect, which increases the difficulty of problem troubleshooting and repair, resulting in unstable welding quality during the production process.

[0004] Therefore, the present invention proposes a multifunctional fixture device for precision machining of mechanical pump components to solve the above problems. Summary of the Invention

[0005] (1) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the existing technology, the present invention provides a multifunctional fixture device for precision machining of mechanical pump components, which can effectively solve the problems in the existing technology.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the object of the present invention can be realized by the following technical solutions:

[0009] A multifunctional fixture device for precision machining of mechanical pump parts, including a workbench. A clamping piece is rotatably connected to the center of the upper end surface of the workbench. A support frame is fixedly connected to the upper end surface of the workbench. A cylinder is fixedly connected to the support frame. A piston rod is fixedly connected to the output end of the cylinder. A positioning cone is rotatably connected to the end of the piston rod away from the cylinder. The positioning cone is located directly above the clamping piece. A welding head is fixedly connected to the outer surface of the piston rod. A sealing ring is placed below the positioning cone. A pump housing is placed above the clamping piece. It also includes a sealing performance detection mechanism and an appearance detection mechanism. The sealing performance detection mechanism is used to check the sealing performance of the welding joint, and the appearance detection mechanism is used to detect the shape of the weld seam.

[0010] As a further scheme of the present invention: The sealing performance detection mechanism further includes a ring. The ring is sleeved on the outer surface of the piston rod. Symmetrically fixed to the lower end surface of the ring are lifting columns. The lifting columns are all slidably connected through the positioning cone. Fixedly connected between the ends of the two lifting columns away from the ring is a compression plate. The compression plates are all slidably connected inside the positioning cone. The lower end surface of the positioning cone is annularly and equidistantly provided with air outlet holes.

[0011] As a further scheme of the present invention: The ring is rotatably connected to the side of the connecting plate away from the support frame. A counterweight is fixedly connected to the center of the lower end surface of the connecting plate.

[0012] As a further scheme of the present invention: A push plate is rotatably connected to the side of the lower end surface of the connecting plate close to the support frame. A slider is rotatably connected to the end of the push plate away from the connecting plate. The slider is slidably connected in the chute.

[0013] As a further scheme of the present invention: Pointers are fixedly connected to both sides of the slider. Safety scale bars are fixedly connected to both sides of the lifting plate. The pointers and the safety scale bars cooperate with each other.

[0014] As a further scheme of the present invention: A moving block is fixedly connected to the lower end surface of the slider. The moving block is slidably connected in the through groove.

[0015] As a further scheme of the present invention: The appearance detection mechanism includes a hollow column. The hollow column is slidably connected through the support frame. An elastic telescopic plate is fixedly connected to the outer surface of the hollow column. The upper end of the elastic telescopic plate is slidably connected to the lower end surface of the lifting plate. An extension column is slidably connected through the end of the hollow column away from the support frame. A spring is fixedly connected between the extension column and the hollow column.

[0016] As a further solution of the present invention: a fixing block is fixedly connected to the outer surface of the extension column, a supporting block is fixedly connected to the outer surface of the hollow column, a button is fixedly connected to one side of the supporting block close to the fixing block, an alarm lamp is fixedly connected to one side of the supporting block away from the hollow column, and the alarm lamp and the button are electrically connected.

[0017] As a further solution of the present invention: an air inlet hole is opened at one end of the extension column away from the hollow column, an airbag is fixedly connected to the outer surface of the extension column, and the airbag is communicated with the air inlet hole.

[0018] As a further solution of the present invention: a sliding column is slidably connected through one side of the hollow column away from the extension column, a limiting disk is fixedly connected to the lower end of the sliding column, a handle is fixedly connected to the upper end of the sliding column, side plates are arranged on both sides of the sliding column, the side plates are fixedly connected to the side wall of the support frame, positioning holes are symmetrically opened on the upper end surfaces of the side plates, clamping columns are symmetrically fixedly connected to the lower end surface of the handle, and the clamping columns are mutually clamped with the positioning holes.

[0019] (III) Beneficial effects

[0020] Compared with the prior art, the present invention provides a multifunctional fixture device for precision machining of mechanical pump parts, which has the following beneficial effects:

[0021] 1. Through the provided airtightness detection mechanism, after the positioning cone and the clamping member respectively clamp and fix the sealing ring and the pump shell, as the welding of the sealing ring and the pump shell is completed, the air inside the positioning cone can be pushed into the sealing ring, and by observing whether the air can be continuously injected, it can be judged whether there is leakage at the welding joint between the sealing ring and the pump shell. By integrating the clamping and airtightness detection functions, not only is it possible to avoid the step of transferring the parts to another link for detection after welding, thus simplifying the entire production process, saving time, and reducing the low production efficiency caused by process fragmentation, but also it is possible to avoid new defects introduced by improper operations during the handling and transfer of the parts, such as scratches and deformations, which affect the welding quality and airtightness. Moreover, by immediately performing the airtightness detection after welding, the detection result can be obtained immediately, which is convenient for timely discovering and repairing welding defects, helping to improve the quality control level and ensuring that the welding between each part meets the quality requirements.

[0022] 2. Through the provided pointer and safety scale line, during the process of pushing the gas inside the gas positioning column into the sealing ring to detect the airtightness, the pointer can be driven to move synchronously. The staff can observe whether the pointer moves beyond the safety scale line to accurately judge the airtightness of the welding joint between the sealing ring and the pump shell. The setting of the pointer and the safety scale line not only makes the airtightness detection result more intuitive, without the need for complex analysis or calculation, but also this clear judgment standard helps to improve the accuracy of detection and reduce the possibility of misjudgment or missed judgment.

[0023] 3. Through the provided appearance detection mechanism, after the sealing ring and the pump housing are welded, the end of the extension column close to the air inlet hole can be attached to the weld seam. As the clamping member drives the pump housing to rotate, the weld seam can be brought into contact with the extension column. When the shape of the weld seam is abnormal, it will push the extension column to drive the fixed block to press the button, turning on the alarm light to work, promptly informing the staff of the abnormal shape of the weld seam. This not only can detect and repair potential faults before the product is assembled or put into use, avoiding faults or accidents caused by weld seam problems during product use, thereby improving the overall reliability and safety of product welding, but also can promptly detect and repair abnormal weld seam shapes, reducing the rejection rate caused by welding defects, saving raw materials and production costs, and also improving production efficiency and resource utilization rate;

[0024] Among them, through the provided air inlet hole, during the process of the extension column moving and detecting while being attached to the weld seam, when detecting the sealing performance of the welding area, if there is a leak, the leaked gas will enter the airbag through the air inlet hole, causing the airbag to expand. Thus, the staff can quickly and accurately locate the leak point without complex searching or analysis and immediately take measures for investigation and repair, which helps to shorten the time for problem investigation and repair.

[0025] 4. By the mutual clamping of the provided clamping post and the positioning hole, when the hollow column drives the extension column to move to the specified position, it can be limited and fixed, and can remain stable after the hollow column and the extension column move to the specified position, ensuring the positioning accuracy during the movement of the hollow column and the extension column, realizing the precise alignment of the extension column and the welding area, thereby improving the accuracy of detecting the welding area. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] For the convenience of those skilled in the art to understand, the following further describes the present invention with reference to the accompanying drawings.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 For the present invention Figure 1 The enlarged schematic diagram of area A in it;

[0029] Figure 3 For the present invention Figure 1 The enlarged schematic diagram of area B in it;

[0030] Figure 4 It is a schematic diagram of the positioning cone connection structure of the present invention;

[0031] Figure 5 It is a schematic diagram of the clamping member and the positioning cone structure of the present invention;

[0032] Figure 6 Schematic diagram of the connection structure between the lifting plate and the hollow column of the present invention;

[0033] Figure 7 Schematic diagram of the connection structure between the hollow column and the extension column of the present invention;

[0034] Figure 8 Schematic diagram of the connection structure between the hollow column and the handle of the present invention.

[0035] In the figure: 1, workbench; 2, clamping member; 3, support frame; 4, cylinder; 5, piston rod; 6, positioning cone; 7, welding head;

[0036] 801, lifting plate; 802, connecting plate; 803, counterweight; 804, push plate; 805, chute; 806, safety scale bar; 807, slider; 808, pointer; 809, ring; 810, lifting column; 811, compression plate; 812, air outlet; 813, through groove; 814, moving block;

[0037] 901, hollow column; 902, elastic telescopic plate; 903, side plate; 904, handle; 905, extension column; 906, fixed block; 907, support block; 908, button; 909, alarm lamp; 910, air inlet; 911, airbag; 912, spring; 913, positioning hole; 914, clamping post; 915, sliding post; 916, limiting disc;

[0038] 10, sealing ring; 11, pump housing. Specific embodiments

[0039] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0040] A multifunctional fixture device for precision machining of mechanical pump parts in this embodiment, as Figure 1 - Figure 8As shown, it includes a workbench 1. A clamping member 2 is rotatably connected to the center of the upper end surface of the workbench 1. A support frame 3 is fixedly connected to the upper end surface of the workbench 1. A cylinder 4 is fixedly connected to the support frame 3. A piston rod 5 is fixedly connected to the output end of the cylinder 4. A positioning cone 6 is rotatably connected to the end of the piston rod 5 away from the cylinder 4. The positioning cone 6 is located directly above the clamping member 2. A welding head 7 is fixedly connected to the outer surface of the piston rod 5. A sealing ring 10 is placed below the positioning cone 6. A pump housing 11 is placed above the clamping member 2. It also includes a sealing performance detection mechanism and an appearance detection mechanism. The sealing performance detection mechanism includes a lifting plate 801 and a connecting plate 802. Both the lifting plate 801 and the connecting plate 802 are vertically slidably connected to the side wall of the support frame 3. A chute 805 and a through groove 813 are formed in the lifting plate 801. The sealing performance detection mechanism is used to check the sealing performance of the welded joint.

[0041] In this embodiment, as Figure 4 shown, the sealing performance detection mechanism further includes a ring 809. The ring 809 is sleeved on the outer surface of the piston rod 5. Symmetrically fixed to the lower end surface of the ring 809 are lifting columns 810. The lifting columns 810 are all slidably connected through the positioning cone 6. Fixedly connected between the ends of the two lifting columns 810 away from the ring 809 is a compression plate 811. The compression plate 811 is slidably connected inside the positioning cone 6. The lower end surface of the positioning cone 6 is annularly and equidistantly provided with air outlet holes 812. When the ring 809 descends, it can push the lifting columns 810 into the positioning cone 6 and drive the compression plate 811 to slide inside the positioning cone 6, exhausting the air inside the positioning cone 6 from the air outlet holes 812.

[0042] In this embodiment, as Figure 1 and Figure 2 shown, the ring 809 is rotatably connected to the side of the connecting plate 802 away from the support frame 3. A counterweight 803 is fixedly connected to the center of the lower end surface of the connecting plate 802. When the limit of the connecting plate 802 is cancelled, due to the influence of the self - weight of the counterweight 803, it will pull the connecting plate 802 to slide downward synchronously on the side wall of the support frame 3, driving the ring 809 rotatably connected to the side wall of the connecting plate 802 to descend.

[0043] In this embodiment, as Figure 2 shown, a push plate 804 is rotatably connected to the side of the lower end surface of the connecting plate 802 close to the support frame 3. A slider 807 is rotatably connected to the end of the push plate 804 away from the connecting plate 802. The slider 807 is slidably connected in the chute 805. When the connecting plate 802 descends, the connecting plate 802 will drive the slider 807 to move horizontally synchronously through the push plate 804.

[0044] In this embodiment, as Figure 2As shown, pointer 808 is fixedly connected to both sides of slider 807, and safety scale bar 806 is fixedly connected to both sides of lifting plate 801. Pointer 808 and safety scale bar 806 cooperate with each other. When slider 807 drives pointer 808 to move, the staff can observe whether pointer 808 moves past safety scale bar 806.

[0045] In this embodiment, as Figure 6 shown, moving block 814 is fixedly connected to the lower end surface of slider 807. Moving block 814 is slidably connected in through slot 813. When moving block 814 slides in through slot 813, it can drive slider 807 to move synchronously.

[0046] In the prior art, when the clamping device fixes the components, it only has a single clamping and positioning function and cannot detect the sealing performance of the welded joints of the mechanical pump components after welding. The sealing performance detection after welding usually needs to be carried out in another process, which not only results in the separation of the detection process and the welding process, increasing the complexity of the production process, but also introduces new defects due to improper operations during the handling and transfer processes. Moreover, when it is detected that the sealing performance of the welded joint is poor, since the clamping device does not record any information during the welding process, it is very difficult to trace the specific source of the defect, which increases the difficulty of problem troubleshooting and repair, resulting in unstable welding quality during the production process. Compared with the prior art, after the positioning cone 6 and the clamping member 2 clamp and fix the sealing ring 10 and the pump housing 11 respectively, as the welding of the sealing ring 10 and the pump housing 11 is completed, the air inside the positioning cone 6 can be pushed into the sealing ring 10, and by observing whether air can be continuously injected, it can be judged whether there is leakage at the welded joint between the sealing ring 10 and the pump housing 11. By integrating the clamping and sealing performance detection functions, not only is it possible to avoid the step of transferring the components to another process for detection after welding, thus simplifying the entire production process, saving time, and reducing the low production efficiency caused by process fragmentation, but also new defects introduced due to improper operations during the handling and transfer of the components, such as scratches and deformations, which affect the welding quality and sealing performance, are avoided. And by immediately performing the sealing performance detection after welding, the detection results can be obtained immediately, which is convenient for timely discovering and repairing welding defects, helping to improve the quality control level and ensuring that the welding between each component meets the quality requirements.

[0047] On other levels, this embodiment also provides an appearance detection mechanism for detecting the shape of the weld seam, such as Figure 1 、 Figure 3 、 Figure 6 - Figure 8As shown in the figure, the appearance detection mechanism includes a hollow column 901, which is slidably connected through the support frame 3. An elastic telescopic plate 902 is fixedly connected to the outer surface of the hollow column 901, and the upper end of the elastic telescopic plate 902 is slidably connected to the lower end surface of the lifting plate 801. One end of the hollow column 901 away from the support frame 3 is slidably connected through an extension column 905, and a spring 912 is fixedly connected between the extension column 905 and the hollow column 901.

[0048] In this embodiment, as Figure 3 shown, a fixed block 906 is fixedly connected to the outer surface of the extension column 905, a support block 907 is fixedly connected to the outer surface of the hollow column 901, a button 908 is fixedly connected to one side of the support block 907 close to the fixed block 906, an alarm lamp 909 is fixedly connected to the side of the support block 907 away from the hollow column 901, and the alarm lamp 909 is electrically connected to the button 908. When the extension column 905 is resisted and slides into the hollow column 901, it will drive the fixed block 906 to move horizontally synchronously close to the support block 907, press the button 908 connected to the side wall of the support block 907, so as to turn on the alarm lamp 909 to work.

[0049] In this embodiment, as Figure 6 shown, an air inlet hole 910 is opened at one end of the extension column 905 away from the hollow column 901, an airbag 911 is fixedly connected to the outer surface of the extension column 905, and the airbag 911 is communicated with the air inlet hole 910. When gas enters the air inlet hole 910 and is communicated with the airbag 911 through the air inlet hole 910, the airbag 911 can be inflated.

[0050] In this embodiment, as Figure 8 shown, a sliding column 915 is slidably connected through one side of the hollow column 901 away from the extension column 905. A limiting disc 916 is fixedly connected to the lower end of the sliding column 915, a handle 904 is fixedly connected to the upper end of the sliding column 915, side plates 903 are arranged on both sides of the sliding column 915, and the side plates 903 are fixedly connected to the side walls of the support frame 3. Positioning holes 913 are symmetrically opened on the upper end surfaces of the side plates 903. Clamping columns 914 are symmetrically fixedly connected to the lower end surface of the handle 904, and the clamping columns 914 are clamped with the positioning holes 913. When pulling the handle 904 to drive the sliding column 915 to slide vertically upward on the hollow column 901, the clamping columns 914 on both sides can be synchronously driven to slide out of the positioning holes 913 opened on the side plates 903. When the sliding column 915 is affected by the limiting disc 916 and cannot continue to move upward, the clamping columns 914 will completely slide out of the positioning holes 913. When the clamping columns 914 are clamped into the positioning holes 913, the position of the hollow column 901 can be fixed through the handle 904 and the sliding column 915.

[0051] Compared with the prior art, after the sealing ring 10 and the pump housing 11 are welded, one end of the extension column 905 close to the air inlet hole 910 can be attached to the weld. As the clamping member 2 drives the pump housing 11 to rotate, the weld can be brought into contact with the extension column 905. When the shape of the weld is abnormal, it will push the extension column 905 to drive the fixed block 906 to press the button 908, turning on the alarm light 909 to work, and promptly informing the staff of the abnormal shape of the weld. This can not only detect and repair potential faults before the product is assembled or put into use, avoid faults or accidents caused by weld problems during the use of the product, thereby improving the overall reliability and safety of product welding, but also detect and repair the abnormal shape of the weld in a timely manner, reduce the rejection rate caused by welding defects, save raw materials and production costs, and improve production efficiency and resource utilization rate;

[0052] Among them, through the provided air inlet hole 910, during the process of the extension column 905 moving and detecting while fitting the weld, when detecting the sealing performance of the welding part, if there is a leak, the leaked gas will enter the airbag 911 through the air inlet hole 910, causing the airbag 911 to expand. Thus, the staff can quickly and accurately locate the leak point without complex searching or analysis, and immediately take measures for investigation and repair, which helps to shorten the time for problem investigation and repair.

[0053] The working process and principle involved in the overall content of the above embodiment are as follows:

[0054] It should be noted that the clamping member 2 is a prior art, mainly used to center and clamp the workpiece for fixation;

[0055] When the staff needs to weld the parts of the mechanical pump, first place the pump housing 11 above the clamping member 2, drive the clamping member 2 to clamp and fix the pump housing 11 in the center, then place the sealing ring 10 at the center of the pump housing 11, drive the cylinder 4 to push the piston rod 5 to extend, drive the positioning cone 6 connected to the lower end of the piston rod 5 to descend directly above the sealing ring 10 to fix the sealing ring 10. During the process of the piston rod 5 driving the positioning cone 6 to descend, the circular ring 809 sleeved on the outer surface of the piston rod 5 will drive the connecting plate 802 to slide downward synchronously on the side wall of the support frame 3. Since a push plate 804 and a slider 807 are connected between the connecting plate 802 and the lifting plate 801, and the moving block 814 connected to the lower end of the slider 807 is limited by the elastic telescopic plate 902 and cannot move, during the descent of the connecting plate 802, it will drive the lifting plate 801 to descend synchronously on the side wall of the support frame 3 through the push plate 804, the slider 807, the moving block 814 and the elastic telescopic plate 902, and at the same time squeeze the elastic telescopic plate 902 connected between the lifting plate 801 and the hollow column 901. After the positioning cone 6 fixes the sealing ring 10, the staff can turn on the welding head 7 to weld the connection between the sealing ring 10 and the pump housing 11. At the same time, rotate the clamping member 2 to drive the pump housing 11 to rotate, and the pump housing 11 can drive the positioning cone 6 to rotate synchronously at the lower end of the piston rod 5 through the sealing ring 10, changing the contact between the connection between the sealing ring 10 and the pump housing 11 and the welding head 7, so that the welding head 7 can weld the sealing ring 10 on the pump housing 11;

[0056] After the welding head 7 finishes welding the sealing ring 10 and the pump housing 11, the staff can lift the handle 904 upward to drive the sliding column 915 to slide vertically upward on the hollow column 901, and at the same time pull the clamping columns 914 connected to both sides of the lower end surface of the handle 904 to slide out of one of the positioning holes 913 opened on the upper end surface of the side plate 903. When the handle 904 is affected by the limit disc 916 and cannot continue to pull the sliding column 915 to move vertically upward, the clamping column 914 will be completely separated from the positioning hole 913. At this time, the staff can horizontally push the handle 904 close to the support frame 3, drive the hollow column 901 to slide on the support frame 3 through the sliding column 915, and push the extension column 905 connected to the other end of the hollow column 901 to fit to the welding joint between the sealing ring 10 and the pump housing 11. When the hollow column 901 drives the extension column 905 to move to the specified position, the staff can press down the handle 904 to drive the sliding column 915 to slide downward on the outer surface of the hollow column 901, and at the same time drive the clamping column 914 connected to the lower end surface of the handle 904 to be inserted into the positioning hole 913 opened on the side plate 903 again to fix the position of the hollow column 901, so that it can remain stable after the hollow column 901 and the extension column 905 move to the specified position, ensuring the positioning accuracy of the hollow column 901 and the extension column 905 during the movement, realizing the precise alignment of the extension column 905 and the welding joint, thereby improving the accuracy of detecting the welding joint;

[0057] During the sliding process of the hollow column 901, it will drive the elastic telescopic plate 902 connected to its outer surface to move synchronously on the lower end surface of the lifting plate 801, causing the elastic telescopic plate 902 to separate from the moving block 814 and releasing the limit on the moving block 814. After the limit on the moving block 814 is released, the connecting plate 802 will be affected by the counterweight block 803 connected to its lower end surface and automatically slide downward on the side wall of the support frame 3, pulling the ring 809 to descend synchronously on the outer surface of the piston rod 5, causing the ring 809 to push the lifting column 810 into the positioning cone 6 and driving the compression plate 811 inside the positioning cone 6 to push the air inside the positioning cone 6 out through the air outlet 812 and into the sealing ring 10. When the air enters the sealing ring 10 without leakage, the ring 809 will not be able to push the lifting column 810 into the positioning cone 6. On the contrary, when the ring 809 continuously descends to push the lifting column 810 into the positioning cone 6, it indicates that there is a leak at the welded joint between the sealing ring 10 and the pump housing 11. By integrating the clamping and sealing detection functions, not only is the step of transferring components to another link for detection after welding avoided, thus simplifying the entire production process, saving time, and reducing the low production efficiency caused by process fragmentation, but also new defects introduced by improper operations during the handling and transfer of components, such as scratches and deformations, which affect the welding quality and sealing performance, are avoided. Moreover, by immediately performing the sealing detection after welding, the detection results can be obtained immediately, facilitating the timely discovery and repair of welding defects, helping to improve the quality control level, and ensuring that the welding between each component meets the quality requirements. When the staff needs to repeatedly perform the sealing detection on the welded joint, they can manually move the connecting plate 802 up and down to achieve multiple sealing detections on the welded joint;

[0058] During the process of the connecting plate 802 pushing the ring 809 to drive the lifting column 810 into the positioning cone 6, the connecting plate 802 will push the upper end of the push plate 804 to descend synchronously, causing the push plate 804 to move from an inclined state to a horizontal state. As the state of the push plate 804 changes, the push plate 804 can push the slider 807 to slide inside the chute 805 opened on the upper end surface of the lifting plate 801. At this time, the staff can observe the pointer 808 connected to the side wall of the slider 807. During the movement of the pointer 808 following the slider 807, whether it crosses the safety scale bar 806 connected to the side wall of the lifting plate 801 can be used to accurately judge the sealing performance of the welded joint between the sealing ring 10 and the pump housing 11. The setting of the pointer 808 and the safety scale line not only makes the sealing detection results more intuitive, eliminating the need for complex analysis or calculations, but also this clear judgment standard helps to improve the accuracy of the detection and reduce the possibility of misjudgment or missed judgment;

[0059] During the process of detecting the sealing performance of the welded joint between the sealing ring 10 and the pump housing 11, the staff can drive the clamping member 2 to rotate on the surface of the workbench 1 again, driving the pump housing 11 and the sealing ring 10 to rotate, so that the welded joint of the pump housing 11 and the sealing ring 10 fits and moves along the extension column 905. If the shape of the weld seam is abnormal during the welding process, it will push the extension column 905 into the hollow column 901, and at the same time squeeze the spring 912 connected between the extension column 905 and the hollow column 901. And during the process of the extension column 905 sliding into the hollow column 901, it will drive the fixed block 906 connected to its outer surface close to the button 908 connected to the side wall of the support block 907, press the button 908. Since the button 908 is electrically connected to the alarm lamp 909, the alarm lamp 909 is turned on to work, promptly informing the staff of the abnormal situation of the weld seam shape. This can not only detect and repair potential faults before the product is assembled or put into use, avoid faults or accidents caused by weld seam problems during the use of the product, thereby improving the overall reliability and safety of product welding, but also detect and repair the abnormal weld seam shape in time, reduce the scrap rate caused by welding defects, save raw materials and production costs, and also improve production efficiency and resource utilization rate;

[0060] During the process of the extension column 905 moving along the welded joint between the sealing ring 10 and the pump housing 11, when gas leaks from the welded joint, the leaked gas will enter the airbag 911 connected to the outer surface of the extension column 905 through the air inlet hole 910 opened on the extension column 905, causing the airbag 911 to expand, so that the staff can quickly and accurately locate the leakage point without complex searching or analysis, and immediately take measures to conduct inspections and repairs, which helps to shorten the time for problem investigation and repair;

[0061] After the detection of the welded joint between the sealing ring 10 and the pump housing 11 is completed, the staff can slide the clamping column 914 out of the positioning hole 913 again, and then move the handle 904 away from the support frame 3, driving the hollow column 901 to slide reversely on the support frame 3 through the sliding column 915. At this time, the elastic telescopic plate 902 connected to the outer surface of the hollow column 901 will slide reversely on the lower end surface of the lifting plate 801, driving the moving block 814 to drive the slider 807 to slide in the chute 805 opened on the upper end surface of the lifting plate 801. During the movement of the slider 807, the slider 807 will push the connecting plate 802 to rise on the side wall of the support frame 3 through the push plate 804, driving the ring 809 to slide upward on the outer surface of the piston rod 5, and at the same time pulling the lifting column 810 out of the positioning cone 6, so that the compression plate 811 inside the positioning cone 6 rises synchronously, sucking the outside air into the positioning cone 6 through the air outlet hole 812, in order to facilitate the positioning cone 6 to detect the sealing performance of subsequent welds.

[0062] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A multifunctional fixture device for finishing mechanical pump parts, comprising a workbench (1), a clamping member (2) is rotatably connected at the center of the upper end surface of the workbench (1), a support frame (3) is fixedly connected to the upper end surface of the workbench (1), a cylinder (4) is fixedly connected to the support frame (3), a piston rod (5) is fixedly connected to the output end of the cylinder (4), a positioning cone (6) is rotatably connected to the end of the piston rod (5) away from the cylinder (4), the positioning cone (6) is located directly above the clamping member (2), a welding head (7) is fixedly connected to the outer surface of the piston rod (5), a sealing ring (10) is placed below the positioning cone (6), and a pump housing (11) is placed above the clamping member (2), characterized in that: It also includes a sealing inspection agency and an appearance inspection agency; The sealing detection mechanism comprises a lifting plate (801) and a connecting plate (802), wherein the lifting plate (801) and the connecting plate (802) are both vertically slidably connected to the side wall of the support frame (3), and the lifting plate (801) is provided with a sliding groove (805) and a through groove (813), and the sealing detection mechanism is used to check the sealing of the welding point; The appearance detection mechanism is used to detect the shape of the welding seam.

2. A multifunctional fixture device for finishing mechanical pump parts according to claim 1, characterized in that: The sealing detection mechanism also includes a circular ring (809), which is sleeved on the outer surface of the piston rod (5), and the lower end surface of the circular ring (809) is symmetrically fixedly connected with a lifting column (810), and the lifting columns (810) are all slidably connected to the positioning cone (6), and a compression plate (811) is fixedly connected between the ends of the two lifting columns (810) away from the circular ring (809), and the compression plates (811) are all slidably connected to the inside of the positioning cone (6), and the lower end surface of the positioning cone (6) is annularly provided with air outlet holes (812) at equal intervals.

3. A multifunctional fixture device for finishing mechanical pump parts according to claim 2, characterized in that: The circular ring (809) is rotatably connected to a side of the connecting plate (802) away from the supporting frame (3), and a counterweight block (803) is fixedly connected to the center of the lower end surface of the connecting plate (802).

4. A multifunctional fixture device for finishing mechanical pump parts according to claim 3, characterized in that: The lower end surface of the connecting plate (802) is rotatably connected to a push plate (804) at one side close to the support frame (3), and the push plate (804) is rotatably connected to a slider (807) at one end away from the connecting plate (802), and the slider (807) is slidably connected in the slide groove (805).

5. A multifunctional fixture device for finishing mechanical pump parts according to claim 4, characterized in that: Pointers (808) are fixedly connected to both sides of the slider (807), and safety scale bars (806) are fixedly connected to both sides of the lifting plate (801), and the pointers (808) and the safety scale bars (806) cooperate with each other.

6. A multifunctional fixture device for finishing mechanical pump parts according to claim 5, characterized in that: A moving block (814) is fixedly connected to the lower end surface of the sliding block (807), and the moving block (814) is slidably connected in the through groove (813).

7. A multifunctional fixture device for finishing mechanical pump parts according to claim 1, characterized in that: The appearance detection mechanism comprises a hollow column (901), wherein the hollow column (901) is slidably connected to the support frame (3), an elastic telescopic plate (902) is fixedly connected to the outer surface of the hollow column (901), an upper end of the elastic telescopic plate (902) is slidably connected to the lower end surface of the lifting plate (801), an extension column (905) is slidably connected to the end of the hollow column (901) away from the support frame (3), and a spring (912) is fixedly connected between the extension column (905) and the hollow column (901).

8. A multifunctional fixture device for finishing mechanical pump parts according to claim 7, characterized in that: The outer surface of the extension column (905) is fixedly connected to a fixing block (906), the outer surface of the hollow column (901) is fixedly connected to a supporting block (907), a button (908) is fixedly connected to the side of the supporting block (907) close to the fixing block (906), and an alarm light (909) is fixedly connected to the side of the supporting block (907) away from the hollow column (901), and the alarm light (909) and the button (908) are electrically connected.

9. A multifunctional fixture device for finishing mechanical pump parts according to claim 8, characterized in that: An air inlet hole (910) is provided at one end of the extension column (905) away from the hollow column (901), and an air bag (911) is fixedly connected to the outer surface of the extension column (905), and the air bag (911) and the air inlet hole (910) are in communication.

10. A multifunctional fixture device for finishing mechanical pump parts according to claim 9, characterized in that: A sliding column (915) is slidably connected to the side of the hollow column (901) away from the extension column (905), the lower end of the sliding column (915) is fixedly connected to a limit plate (916), the upper end of the sliding column (915) is fixedly connected to a handle (904), side panels (903) are arranged on both sides of the sliding column (915), the side panels (903) are fixedly connected to the side walls of the support frame (3), the upper end surfaces of the side panels (903) are symmetrically provided with positioning holes (913), the lower end surface of the handle (904) is symmetrically fixedly connected to a clamping column (914), and the clamping column (914) and the positioning hole (913) are clamped to each other.

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