A tooling fixture for improving valve welding precision and welding efficiency

Abstract

The application provides a tool clamp for improving valve welding precision and welding efficiency; comprising a tool table and a clamping mechanism arranged on the tool table, the clamping mechanism comprises one or more of a seat for placing a valve body or a clamping part for fixing the valve body; further comprising a feeding assembly arranged on the tool table for driving the seat or the clamping part to adjust the position and posture thereof; the application only needs to move the lead screw mechanism of the feeding assembly outside the seat to leave enough space for dismounting the valve after the valve is welded, and when clamping multiple valve bodies for clamping the next valve, the lead screw mechanism of the feeding assembly that is moved away only needs to be reset for the clamping part, so that the clamping and positioning of the valve body can be completed again, the operation of positioning and clamping the chuck during the welding of the valve is reduced, the welding efficiency is improved, the welding precision is increased, and the problems of insufficient machining efficiency and machining precision during the welding of specific valves are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of valve welding, in particular to a tooling fixture for improving valve welding precision and welding efficiency. BACKGROUND

[0002] Valves are widely used fluid control devices, as an important part of the piping system, the specifications and types of valves are various, and the functions are different, and the manufacturing process of the valve will directly affect the safe operation of the piping equipment, the valve welding is one of the key processes in the whole manufacturing process, different valve bodies are welded to produce different valve structures, so that the use effect of the tooling fixture in the welding process is related to the welding quality of the valve.

[0003] Chinese patent application No. 201911324294.2 discloses a valve body machining tooling fixture for butt welding connection of high pressure valve, which comprises a clamping turntable of a machine tool and a base for placing the valve body, a plurality of positioning holes are formed on the base along the rotation direction of the base, and a positioning mechanism is arranged on the base for being arranged in one of the positioning holes and positioning the base.

[0004] However, in the technical scheme, although the clamping does not need to be recalibrated when switching the valve body machining end face, the clamping turntable of the machine tool is used to drive the valve body to rotate, which introduces the error of the positioning accuracy of the machine tool and increases the use of the machine tool equipment, and when a plurality of valve bodies are manufactured into a multi-way valve structure, the valve welding effect is affected. SUMMARY

[0005] The purpose of the present application is to solve the problems of the prior art, provide a tooling fixture for improving valve welding precision and welding efficiency, after the valve welding is completed, only the lead screw mechanism of the feeding assembly on the outside of the base needs to be moved away, leaving enough space for the valve to be removed, when the plurality of valve bodies of the next valve are clamped, the operation of positioning the chuck of the clamping part is reduced, the welding efficiency is improved, the welding precision is increased, the welding process of the valve is optimized, the welding quality of the valve is improved, and the problems of insufficient machining efficiency and machining precision when welding a specific valve are solved.

[0006] To achieve the above purpose, the present application provides the following technical scheme:

[0007] A tooling fixture for improving valve welding precision and welding efficiency, comprising a tooling table, further comprising:

[0008] A clamping mechanism arranged on the tooling table, the clamping mechanism comprising one or more of a base for placing the valve body or a clamping part for fixing the valve body; and

[0009] The feeding assembly is arranged on the tooling table and used to drive the seat or the clamping part to adjust its position and posture;

[0010] The flanges of the valve bodies are respectively arranged on the seat or the clamping part, the position relationship between the valve bodies is adjusted by the feeding assembly, the plurality of valve bodies after positioning form the required valve shape, and welding operation is performed between the adjacent valve bodies.

[0011] Further, the feeding assembly is used to fix the clamping part and arranged in the circumferential direction of the seat;

[0012] The feeding assembly comprises a first feeding part moving in the direction parallel to the end surface of the seat and a second feeding part moving in the direction perpendicular to the end surface of the seat.

[0013] As a preferred, it further comprises a point position part fixed in the clamping mechanism and used to position the valve body;

[0014] The point position part comprises a point position hole opened around the center of the seat; and

[0015] A point position rod arranged in the point position hole and protruding from the surface of the seat.

[0016] Further, the point position rod comprises a connecting section used to be fixed in the point position hole and a limiting section protruding from the surface of the point position hole, the limiting section is positioned by penetrating the flange hole of the valve body, and the connecting section and the limiting section are detachably arranged together.

[0017] Further, the clamping part comprises:

[0018] A clamping plate arranged at one end of the feeding assembly facing the seat;

[0019] A positioning groove opened on the surface of the clamping plate and penetrating through both sides of the clamping plate; and

[0020] A clamping part movably arranged in the positioning groove and symmetrically arranged about the center of the positioning groove;

[0021] The clamping part comprises a positioning area parallel to the surface of the clamping part and a locking area protruding from the surface of the clamping part; the same point position part as that on the seat is arranged in the positioning area, and a pressing rod assembly performing clamping action is fixed in the locking area.

[0022] As a preferred, it further comprises an ejection part used to lock the valve body, the ejection part is arranged in the locking area of the clamping part, and the ejection part comprises:

[0023] A top block movably arranged at one side of the locking area facing the center of the clamping part; and

[0024] An adjusting bolt used to drive the top block to move in and out and protruding from the surface of the locking area.

[0025] As a preferred, the clamping plate is installed on the feeding assembly by positioning bolts at the middle part thereof, the length direction of the clamping plate is inclined to the surface of the pedestal, and the clamping plates arranged at different inclined angles in the circumferential direction of the pedestal.

[0026] Further, the pressing rod assembly comprises:

[0027] The lever part is hinged at the fulcrum to the support of the locking area convex, and a handle is arranged at one end of the lever part;

[0028] The driven part is a U-shaped plate structure, and two hinged points are arranged at the opening end of the U-shaped plate structure of the driven part, and the driven part is connected to the support and the other end of the lever part through the two hinged points respectively; and

[0029] The pressing rod column arranged in the U-shaped plate structure of the driven part and the bolt set for fixing the pressing rod column.

[0030] Further, a rotating part arranged on the tooling table is further included, the rotating part is used for adjusting the distribution position of the clamping part in the circumferential direction of the pedestal, and the rotating part comprises:

[0031] The rotating channel is arranged on the surface of the tooling table, and the center of the rotating channel coincides with the axial direction of the valve body on the pedestal;

[0032] The load part is movably connected to the bottom of the feeding assembly along the rotating channel; and

[0033] The displacement part arranged at the bottom of the feeding assembly is used for pulling the load part to move in the direction perpendicular to the surface of the tooling table.

[0034] Further, the displacement part comprises:

[0035] The displacement slot is arranged on the bottom surface of the feeding assembly and covers the rotating channel;

[0036] The displacement plate movably arranged in the displacement slot is rotatably connected to the load part corresponding to the position of the rotating channel; and

[0037] The displacement rod is connected to the displacement plate at one end and extends out of the feeding assembly at the other end.

[0038] The beneficial effects of the present application are:

[0039] (1) The present application only needs to move the screw mechanism of the feeding assembly outside the base to leave enough space for the valve to be removed after the valve is welded, and when clamping the next valve body, the valve body is first fixed on the clamping part that is not moved after positioning, and then the valve body on the base is moved to match the welding position of the valve body in the chuck of the clamping part that has been positioned, so that the clamping and positioning of the valve body can be completed, reducing the operation of the chuck of the positioning and clamping part during the welding of the valve, improving the welding efficiency and increasing the welding precision.

[0040] (2) After the valve is welded, the valve fixedly installed on the clamping part is removed, and the first feeding part is operated to move the clamping part away from the base, at which time the completed welded valve is removed, and then the valve body required for welding the next valve is clamped, and the clamping part moved away from the base only needs to be operated to restore the positioning state required for the valve body welding, reducing the clamping and positioning steps and reducing the repeated positioning error.

[0041] (3) The present application is provided with an ejection part in the locking area of the clamping part, so that the top block installed slidingly moves along the side surface of the locking area of the clamping part under the action of the adjusting bolt, and then contacts the flange side surface of the valve body to limit the position, avoiding the gap fit state between the flange hole of the valve body and the point rod, and preventing the valve body from shaking on the surface of the clamping plate, so as to ensure that the valve body fixed on the clamping part is in a stable state, thereby maintaining the welding precision of the valve body.

[0042] (4) The present application installs the pressure rod column in the U-shaped plate structure of the driven part, and cooperates with the bolt group on the pressure rod column, so that the pair of bolts are arranged on the pressure rod pieces at both ends of the U-shaped plate, on the one hand, by rotating to increase the distance between the pair of bolts, the position of the pressure rod piece in the length direction of the driven part of the U-shaped plate structure is changed, and the position of the pressure rod column fixed on the flange surface of the valve body is controlled; the pair of bolts in the bolt group can also be adjusted synchronously, the extension length of the pressure rod column in the U-shaped structure plate of the driven part is changed, and the flange surface of the valve body with different thicknesses is adapted.

[0043] (5) The present application controls the height position of the variable position plate and the load piece thereon in the variable position groove by rotating the inner hexagonal screw rod of the variable position rod, realizes the control of the feeding assembly and the rotary path of the feeding assembly contacting the worktable surface or the feeding assembly contacting the worktable through the load piece by the variable position part, and then adjusts the fixation of the feeding assembly and the clamping part in the circumferential position of the base according to the clamping requirement, thereby expanding the applicability of welding multiple valve bodies into valves with different structures.

[0044] In summary, the present application has the advantages of improving the welding efficiency and welding precision of valves with specific structures. BRIEF DESCRIPTION OF DRAWINGS

[0045] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0046] Figure 2 Figure 1 is a schematic view of the clamping mechanism of the present application;

[0047] Figure 3 Figure 2 is a schematic view of the clamping mechanism components of the present application;

[0048] Figure 4 Figure 3 is a schematic view of the clamping mechanism of the present application;

[0049] Figure 5 Figure 4 is a schematic view of the clamping mechanism of the present application;

[0050] Figure 6 Figure 5 is a schematic view of the clamping mechanism of the present application; Figure 5 Figure 6 is a partial enlarged view of A in Figure 5;

[0051] Figure 7 Figure 7 is an exploded schematic view of the clamping mechanism of the present application;

[0052] Figure 8 Figure 8 is a schematic view of the clamping mechanism of the present application; Figure 7 Figure 9 is a partial enlarged view of B in Figure 8;

[0053] Figure 9 Figure 10 is a schematic view of the clamping mechanism of the present application;

[0054] Figure 10 Figure 11 is an exploded schematic view of the clamping mechanism of the present application;

[0055] Figure 1 is a schematic view of the clamping mechanism of the present application; DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0057] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0058] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0059] Example 1

[0060] like Figures 1-2 As shown, this embodiment provides a tooling fixture for improving valve welding accuracy and efficiency, including a tooling table 1, and further comprising:

[0061] Clamping mechanism 2, arranged on tooling table 1, includes one or more of a base 3 for placing valve body 100 or a clamping part 4 for fixing valve body 100; and

[0062] The feed assembly 5, arranged on the tooling table 1, is used to drive the table 3 or the clamping part 4 to adjust their position and posture.

[0063] The flanges of several valve bodies 100 are respectively installed on the base 3 or the clamping part 4. The positional relationship between each valve body 100 is adjusted by the feed assembly 5 so that the multiple valve bodies 100 after positioning form the required valve shape, and welding operations are performed between adjacent valve bodies 100.

[0064] When welding valves, especially some valves with irregular structures, it is necessary to install several different valve bodies 100 onto the clamping mechanism 2 for positioning before welding. In this process, each clamped valve body 100 needs to be operated one by one. On the one hand, it is easy to cause repeated positioning errors between valve bodies 100, and on the other hand, it increases the number of operation steps for clamping and positioning valve bodies 100.

[0065] In the embodiment, the valve body 100 is placed in the center of the pedestal 3, and then the other valve bodies 100 to be welded are fixed on the clamping portions 4 outside the pedestal 3. The valve body 100 placed on the pedestal 3 is used as the reference for welding the valve, and the position relationship between the clamping portions 4 and the pedestal 3 is adjusted by the feeding assembly 5 installed on the tooling table 1, so that the valve body 100 fixed on the clamping portions 4 matches the welding position of the valve body 100 on the pedestal 3, thereby reducing the workload of repeatedly adjusting the position of each valve body 100 during the welding of the valve and improving the positioning accuracy of the valve bodies 100.

[0066] It is worth mentioning that after the welding of the valve is completed, the clamping portions 4 are opened, and only the screw rod mechanism of the feeding assembly 5 outside the pedestal 3 needs to be moved to leave enough space for the valve to be removed. When the valve bodies 100 of the next valve are clamped, the valve bodies 100 are first fixed on the clamping portions 4 that are not moved after positioning, and then the valve body 100 on the pedestal 3 is moved to match the welding position of the valve body 100 on the clamping portions 4. Then, only the part of the clamping portions 4 that is moved away when the valve is removed needs to be moved to complete the positioning, thereby reducing the operation of repositioning the clamping portions 4 during the welding of multiple valves, improving the welding efficiency and increasing the welding accuracy, optimizing the welding process of the special-shaped valve, and improving the welding quality of the valve.

[0067] As shown in FIG. 1, Figure 3 The feeding assembly 5 is used to fix the clamping portions 4 and is arranged in the circumferential direction of the pedestal 3.

[0068] The feeding assembly 5 includes a first feeding portion 51 moving in the direction parallel to the end face of the pedestal 3 and a second feeding portion 52 moving in the direction perpendicular to the end face of the pedestal 3.

[0069] In the embodiment, when the valve is welded for the first time, the valve body 100 is first placed in the center of the pedestal 3, and then the other valve bodies 100 are fixed on the clamping portions 4. Then, the first feeding portion 51 and the second feeding portion 52 of the feeding assembly 5 are adjusted, for example, the screw rod mechanisms of the first feeding portion 51 and the second feeding portion 52 adopt different installation postures, so that the valve body 100 on the clamping portions 4 matches the welding position of the valve body 100 on the pedestal 3. After the welding of the valve is completed, the valve fixed on the clamping portions 4 is removed, and the clamping portions 4 are moved away from the pedestal 3 by operating the first feeding portion 51. At this time, the welded valve is removed, and then the valve bodies 100 required for welding the next valve are clamped. For the clamping portions 4 moved away from the pedestal 3, only the first feeding portion 51 needs to be operated to restore the positioning state required for welding the valve body 100.

[0070] Need to explain, in the repeated welding operation of multiple valves, the clamping part 4 is arranged around the periphery of the seat 3, the first feeding part 51 is matched with the driving clamping part 4 to move along the parallel end face of the seat 3, and the position of the valve body 100 placed on the seat 3 is adjusted, so as to complete the positioning of the welding position of each valve body 100, thereby reducing the clamping positioning steps and reducing the repeated positioning error.

[0071] As shown in Figure 3 , it also includes a point part 21 fixed in the clamping mechanism 2 for positioning the valve body 100;

[0072] The point part 21 includes a point hole 211 arranged around the center of the seat 3; and

[0073] The point rod 212 is installed in the point hole 211 and protrudes from the surface of the seat 3.

[0074] When the valve body 100 is placed on the seat 3, according to the size of the flange of the valve body 100, the valve body 100 is moved to match the flange hole with the point hole 211 on the seat 3, and then the point rod 212 is inserted into the point hole 211 from the flange hole of the valve body 100, thereby completing the positioning of the flange on the seat 3; by arranging a plurality of point holes 211 on the seat 3 and inserting the point rod 212, the valve body 100 is conveniently positioned on the seat 3, and the clamping efficiency of the valve welding process is improved.

[0075] As shown in Figure 7 , the point rod 212 includes a connecting section 2121 for fixing in the point hole 211 and a limiting section 2122 protruding from the surface of the point hole 211, the limiting section 2122 is positioned by penetrating the flange hole of the valve body 100, and the connecting section 2121 and the limiting section 2122 are detachably installed together.

[0076] When the flange hole of the valve body 100 is clamped and fixed, the size of the connecting section 2121 is matched with the size of the point hole 211, different sizes of the limiting section 2122 are installed to match the positioning rod with the flange hole of the valve body 100 of different diameters; similarly, a protruding stepped shaft section can be provided on the limiting section 2122, and a screw is provided on the point hole 211 and the connecting section 2121, so that the point rod 212 is clamped into the point hole 211 by screw engagement, and the stepped shaft section is pressed on the surface of the flange hole of the valve body 100, further enhancing the firmness of the positioning of the valve body 100 placed on the seat 3, and ensuring the welding precision of the valve.

[0077] As shown in Figures 3-5 , the clamping part 4 includes:

[0078] The clamping plate 41 is arranged at one end of the feeding assembly 5 facing the seat 3;

[0079] Positioning grooves 410, which are arranged on the surface of the clamping plate 41 and extend through both sides of the clamping plate 41; and

[0080] Clamping portions 42, which are movably arranged in the positioning grooves 410 and are symmetrically arranged about the center of the positioning grooves 410;

[0081] The clamping portions 42 include positioning areas 421 parallel to the surface of the clamping portions 4 and locking areas 422 protruding from the surface of the clamping portions 4; the positioning areas 421 are provided with the same point position portions 21 as those on the pedestal 3, and the locking areas 422 are fixedly provided with a press rod assembly 423 for performing clamping actions.

[0082] In this embodiment, according to the size of the valve body 100 to be clamped, the clamping portions 42 symmetrically arranged in the positioning grooves 410 are moved so that the point position portions 21 in the positioning areas 421 of the clamping portions 42 match the flange hole positions of the valve body 100; after the valve body 100 is clamped into the point position portions 21 in the positioning areas 421 of the clamping portions 42, the multi-link rod of the press rod assembly 423 is operated to abut against the flange of the valve body 100, thereby fixing the valve body 100 on the clamping portions 4; similarly, the point position portions 21 in the positioning areas 421 are matched with the valve body 100 flange hole through the arrangement of the connecting segment 2121 and the limiting segment 2122, so as to enhance the stability of the clamping portions 42 clamping the valve body 100.

[0083] As shown in Figures 6-8 , it further includes an ejection portion 424 for locking the valve body 100, which is arranged in the locking area 422 of the clamping portion 42; the ejection portion 424 includes:

[0084] A top block 4241 movably arranged on one side of the locking area 422 towards the center of the clamping portion 42; and

[0085] An adjusting bolt 4242 for driving the telescopic movement of the top block 4241, which protrudes from the surface of the locking area 422.

[0086] When the valve body 100 is fixed to the point position part 21 of the clamping plate 41, the flange hole of the valve body 100 is in a clearance fit state with the point position rod 212, causing the valve body 100 to shake on the surface of the clamping plate 41. The ejection part 424 provided in the locking area 422 of the clamping part 42 is used to make the slidingly installed top block 4241 extend and abut against the flange side surface of the valve body 100 under the action of the adjusting bolt 4242. For example, a containing space 4220 is provided in the locking area 422 of the clamping part 42, the top block 4241 is slidingly installed in the containing opening in the side surface of the locking area 422, a reset spring 4221 is fixedly connected between the tail end of the top block 4241 and the inner wall of the containing space 4220, and a chamfer is provided on the side of the tail end of the top block 4241 facing the adjusting bolt 4242. The adjusting bolt 4242 is lifted and lowered in the containing space 4220 and contacts the chamfered surface of the top block 4241, which drives the top block 4241 to extend and retract from the side surface of the locking area 422 of the clamping part 42 and then contact the flange side surface of the valve body 100 to limit the position, so that the valve body 100 fixed on the clamping part 4 is in a stable state, thereby maintaining the welding precision of the valve body 100.

[0087] As shown in Figures 1-4 , the clamping plate 41 is installed on the feeding assembly 5 through the positioning bolt 411 in the middle part thereof, the length direction of the clamping plate 41 is inclined to the surface of the pedestal 3, and the plurality of clamping plates 41 arranged circumferentially on the pedestal 3 are at different inclination angles.

[0088] During the welding of the valve body 100 fixed on the clamping plate 41 to the valve body 100 on the pedestal 3, the two ends of the clamping plate 41 extending in the length direction occupy the operation space for welding the valve body 100. During the installation and fixation of the clamping plate 41 through the positioning bolt 411, the clamping plate 41 is in an inclined posture and is locked by the positioning bolt 411, so that the two ends of the clamping plate 41 are at different height positions from the valve body 100 fixed at the central part thereof, thereby leaving space for welding on both sides of the horizontal position of the valve body 100, avoiding the interference of the clamping plate 41 and the clamping part 42 thereon with the operation space for welding the valve body 100, and facilitating the work of the welder at a comfortable angle, thereby improving the welding efficiency and welding quality.

[0089] It is worth noting that the clamping plate 41 is installed on the feeding assembly 5 through the positioning bolt 411 in the central area thereof, so that the clamping plate 41 can be rotated by the positioning bolt 411, thereby changing the inclination angle between the clamping parts 42, making the valve body 100 on the clamping part 4 be able to select the distribution state of the flange hole at the welding time, realizing the control of the position of the flange hole on each valve body 100 of the welded valve, and improving the welding effect of the valve.

[0090] As shown in Figures 6-7 , the pressing rod assembly 423 comprises:

[0091] The lever part 4231 is hinged at its fulcrum to the support member 4230 protruding from the locking area 422, and one end of the lever part 4231 is provided as a handle.

[0092] The driven part 4232 has a U-shaped plate structure, and two hinge points are provided at the open end of the U-shaped plate structure. The driven part 4232 is connected to the other end of the support member 4230 and the lever part 4231 through the two hinge points respectively; and

[0093] A pressure bar column 4233 and a bolt group 4234 for fixing the pressure bar column 4233 are arranged in the U-shaped plate structure of the driven part 4232.

[0094] In this embodiment, the operating handle causes the lever part 4231 to be pressed down from the state of protruding from the locking area 422, and drives the driven part 4232 to deflect, further reducing the space occupied by the clamping part 42 when fixing the valve body 100. At the same time, the pressure rod 4233 moves with the driven part 4232 and presses against the valve body 100 flange of the clamping plate 41, thus completing the fixing of the valve body 100 on the clamping part 4.

[0095] The pressure rod 4233 is installed inside the U-shaped plate structure of the driven part 4232, and cooperates with the bolt group 4234 on the pressure rod 4233 so that the paired bolts are arranged on the pressure rod members at both ends of the U-shaped plate. On the one hand, by rotating, the distance between the paired bolts is increased, so that the pressure rod members are loosened from the U-shaped plate, thereby changing the position of the pressure rod members in the length direction of the driven part 4232 of the U-shaped plate structure, and controlling the position of the pressure rod 4233 fixed on the flange face of the valve body 100. On the other hand, the paired bolts in the bolt group 4242 4234 can be adjusted simultaneously, thereby changing the extension length of the pressure rod 4233 in the U-shaped structure plate of the driven part 4232, adapting to the flange surface of the valve body 100 with different thicknesses.

[0096] Example 2

[0097] like Figures 1-2 As shown in Figures 9-10, components that are the same as or corresponding to those in Embodiment 1 are referred to using the same reference numerals as in Embodiment 1. For simplicity, only the differences from Embodiment 1 are described below. The difference between Embodiment 2 and Embodiment 1 is as follows:

[0098] It also includes a rotating part 11 arranged on the tooling table 1, the rotating part 11 being used to adjust the distribution position of the clamping part 4 in the circumferential direction of the base 3, the rotating part 11 comprising:

[0099] Rotary track 111, the center of which is opened on the surface of tooling table 1 coincides with the axial direction of valve body 100 on base 3;

[0100] The load 112 is movably connected to the bottom of the feeding assembly 5 along the rotation path 111.

[0101] The displacement part 50 is arranged at the bottom of the feeding assembly 5 and used to pull the load 112 to move along a direction perpendicular to the surface of the tooling table 1.

[0102] In the embodiment, a surrounding rotation path 111 is formed on the surface of the tooling table 1, the center of the pedestal 3 matches the center of the rotation path 111 on the surface of the tooling table 1, and the load 112, for example, a ball seat and a rolling ball installed at the bottom of the feeding assembly 5, is matched with the installed displacement part 50, so that the rolling ball of the load 112 moves out of the bottom surface of the feeding assembly 5 and supports the feeding assembly 5 to move in the rotation path 111. After the feeding assembly 5 is adjusted to the appropriate position of the pedestal 3, the load 112 is retracted through the displacement part 50, the rotation part 11 is used to generate relative rotation between the pedestal 3 and the clamping part 4, and then the valve body 100 on the clamping part 4 is positioned to different positions of the valve body 100 on the pedestal 3, so as to realize welding of valve bodies 100 with different structures.

[0103] As shown in Figure 10 , the displacement part 50 comprises:

[0104] The displacement groove 501 is formed on the bottom surface of the feeding assembly 5 and covers the rotation path 111;

[0105] The displacement plate 502 is movably arranged in the displacement groove 501, and the load 112 movably connected to the displacement plate 502 corresponds to the position of the rotation path 111; and

[0106] The displacement rod 503 is connected to the displacement plate 502 at one end and extends out of the feeding assembly 5 at the other end.

[0107] In the process of the displacement part 50 pulling the load 112, the displacement rod 503 is engaged in the feed assembly 5, for example, a hexagonal screw, and the bottom of the hexagonal screw is rotationally connected with the displacement plate 502, and then the height position of the displacement plate 502 and the load 112 on it in the displacement groove 501 is controlled by rotating the hexagonal screw of the displacement rod 503, so as to control the feed assembly 5 to contact the surface of the tooling table 1 or the rotation path 111 of the tooling table 1 through the load 112; then when the clamping part 4 needs to be moved to the circumferential position of the pedestal 3, the displacement rod 503 is rotated to make the displacement plate 502 and the load 112 on it descend and protrude from the bottom surface of the feed assembly 5 to contact the rotation path 111 of the tooling table 1, and the feed assembly 5 and the clamping part 4 on it are moved along the rotation path 111 of the tooling table 1 by the rolling ball of the load 112, and when moved to the corresponding position, the displacement rod 503 is reversely rotated to make the displacement plate 502 and the load 112 on it rise along the displacement groove 501, so that the gravity of the feed assembly 5 and the clamping part 4 is directly loaded by the surface of the tooling table 1, and the fixing of the feed assembly 5 and the clamping part 4 on the circumferential position of the pedestal 3 is completed, thereby expanding the applicability of welding multiple valve bodies 100 into different configurations of valves.

[0108] Working steps

[0109] Step one, after placing a valve body 100 in the center area of the pedestal 3, other valve bodies 100 to be welded are fixed on the clamping part 4, such as a chuck, outside the pedestal 3, taking the valve body 100 placed on the pedestal 3 as the reference of the welded valve, adjusting the positional relationship of the clamping part 4 relative to the pedestal 3 through the feed assembly 5, such as a lead screw mechanism, installed on the tooling table 1, so that the valve body 100 fixed on the chuck of the clamping part 4 matches the welding position of the valve body 100 on the pedestal 3;

[0110] Step two, first, place the valve body 100 in the center area of the pedestal 3, then install and fix the other valve bodies 100 on the chuck of the clamping part 4, and then adjust the first feed part 51 and the second feed part 52 in the feed assembly 5, for example, make the first feed part 51 and the second feed part 52 adopt lead screw mechanisms with different installation postures, so that the valve body 100 on the chuck of the clamping part 4 matches the welding position of the valve body 100 on the pedestal 3;

[0111] Step three, after the valve is welded, the valve fixed and installed on the clamping part 4 is removed, and the first feed part 51 is operated to move the clamping part 4 away from the pedestal 3, at this time the completed valve is removed, and then the valve body 100 required for the next valve welding is clamped and welded, and for the clamping part 4 moved away from the pedestal 3, only the first feed part 51 needs to be operated to restore the positioning state required for fixing the valve body 100 for welding;

[0112] Step four, according to the flange size of the valve body 100, move the valve body 100 to match the flange hole with the point hole 211 on the pedestal 3, then insert the point rod 212 into the point hole 211 from the flange hole of the valve body 100, and then complete the positioning of the flange on the pedestal 3; use the point holes 211 on the pedestal 3 to cooperate with the operation of inserting and pulling the point rod 212 to position the valve body 100 on the pedestal 3;

[0113] Step five, a containing space 4220 is formed in the locking area 422 of the clamping part 42, the top block 4241 is slidingly installed in the containing opening on the side of the locking area 422, the lifting process of the rotary adjusting bolt 4242 in the containing space 4220 is in contact with the chamfer surface of the top block 4241, the top block 4241 is driven to move in and out from the side of the locking area 422 of the clamping part 42, and then contacts the flange side of the valve body 100 for limiting;

[0114] Step six, during the process of fixing the clamping plate 41 by the positioning bolt 411, the clamping plate 41 is in an inclined posture on the locking positioning bolt 411, so that the two ends of the clamping plate 41 and the central part of the valve body 100 are at different height positions, and then spaces for welding are left on both sides of the horizontal position of the valve body 100 height;

[0115] Step seven, operate the handle to press down the lever part 4231 from the protruding state of the locking area 422, drive the driven part 4232 to deflect, further reduce the occupied space of the clamping part 42 when fixing the valve body 100, and the pressing rod column 4233 moves with the driven part 4232 and presses the valve body 100 flange of the clamping plate 41, the fixing of the valve body 100 on the clamping part 4 is completed, and the multiple valve bodies 100 that are positioned are welded into the valve door with the required shape.

[0116] The above only describes the preferred embodiments of the present application and is not used to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A tooling fixture for improving valve welding accuracy and welding efficiency, characterized in that, The utility model relates to a kind of tooling fixtures for improving valve welding precision and welding efficiency, including: Tooling table, further including: Clamping mechanism, the clamping mechanism is arranged on tooling table, clamping mechanism includes pedestal for placing valve body and clamping part for fixing valve body;And Feed assembly, the feed assembly for driving clamping part to adjust its position posture is arranged on tooling table; The flange of several valve bodies is respectively installed on pedestal or clamping part, the positional relationship between each valve body is adjusted by feed assembly, and the multiple valve bodies after positioning form the required valve shape, and welding operation is carried out between adjacent valve bodies; Further including the point position part for positioning valve body in clamping mechanism; The point position part includes the point position hole opened around the center of pedestal;And Point position rod is installed in point position hole and protrudes from the surface of pedestal; The clamping part includes: Clamping plate, the clamping plate is arranged at the end of feed assembly towards pedestal; Positioning groove, the positioning groove opened in the surface of clamping plate penetrates the two sides of clamping plate;And Clamping part, the clamping part movably arranged in positioning groove is symmetrically arranged about the center of positioning groove; The clamping part includes the positioning area parallel to the surface of clamping part and the locking area protruding from the surface of clamping part;The same point position part as on pedestal is arranged in positioning area, and the pressing rod assembly for executing clamping action is fixed in locking area; Further including the ejection part for locking valve, and the ejection part is arranged in the locking area of clamping part, and the ejection part includes: Top block, the top block movably arranged at the side of locking area towards the center of clamping part;And Adjusting bolt, the adjusting bolt for driving the telescopic movement of top block protrudes from the surface of locking area; The pressing rod assembly includes: Lever part, the fulcrum of lever part is hinged on the support protruding from locking area; Driven part, the driven part is provided with two hinge points at one end, and the driven part is connected with support and the other end of lever part respectively through two hinge points;And The bolt group for fixing the pressing rod column arranged in driven part.

2. The tooling fixture for improving valve welding precision and welding efficiency according to claim 1, wherein, The feed assembly is used for fixing clamping part and is arranged on the circumference of pedestal; The feed assembly includes the first feed part moving along the direction parallel to the end face of pedestal and the second feed part moving along the direction perpendicular to the end face of pedestal.

3. The tooling fixture for improving valve welding precision and welding efficiency according to claim 1, wherein, The point position rod includes the connecting segment for fixing in point position hole and the limiting segment protruding from the surface of point position hole, the limiting segment is positioned through the flange hole penetrating valve body, and the connecting segment and limiting segment are detachably installed together.

4. The tooling fixture for improving valve welding precision and welding efficiency according to claim 1, wherein, The clamping plate is installed on feed assembly through the positioning bolt at the middle position, the length direction of clamping plate is inclined to the surface of pedestal, and the plurality of clamping plates arranged on the circumference of pedestal are at different inclination angles.

5. The tooling fixture for improving valve welding precision and welding efficiency according to claim 1, wherein, Further comprising a rotating part arranged on the tooling table, the rotating part is used to adjust the distribution position of the clamping part in the circumferential direction of the pedestal, and the rotating part comprises: a rotating channel, the center of the rotating channel is coincident with the axial direction of the valve body on the pedestal; a load, the load moving along the rotating channel is movably connected to the bottom of the feeding assembly; and a displacement part, the displacement part arranged on the bottom of the feeding assembly is used to pull the load to move in the direction perpendicular to the surface of the tooling table.

6. The tooling clamp for improving the welding precision and efficiency of the valve according to claim 5, characterized in that, the displacement part comprises: a displacement groove, the displacement groove arranged on the bottom surface of the feeding assembly covers the rotating channel; a displacement plate, the load movably connected on the displacement plate corresponds to the position of the rotating channel; and a displacement rod, one end of the displacement rod is connected to the displacement plate, and the other end of the displacement rod penetrates and extends along the feeding assembly.

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