Valve body assembly tool

Abstract

The application discloses a valve body assembling tool, which comprises a supporting mechanism, a plunger positioning floating mechanism and a locking mechanism, the supporting mechanism is used for supporting the valve body and positioning the valve body together with the plunger positioning floating mechanism, the plunger positioning floating mechanism is used for positioning the position of the valve body on the supporting mechanism, and the locking mechanism is used for locking the plunger positioning floating mechanism. The valve body assembling tool has the beneficial effects that the valve body is supported by the supporting mechanism, the valve body is precisely positioned by the plunger positioning floating mechanism, and the automatic assembly of the valve rod is completed. Since the surface of the valve rod is precisely processed, the valve rod can be precisely positioned by the supporting mechanism and the plunger positioning floating mechanism after the valve rod is assembled, which is equivalent to precisely positioning the valve body, so that the subsequent automatic assembly of other components into the valve body is not affected, the precise positioning of the valve body ensures the high precision of the automatic assembly, and therefore, the valve body assembling is fully automated, manual participation is not needed, and the assembling efficiency is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of valve body manufacturing, in particular to a valve body assembly tool. BACKGROUND

[0002] Valve is a kind of pressure pipeline components, it is a kind of to change the pipeline section and medium flow direction, control the pressure, flow, temperature of conveying medium device. With flow, cut-off, regulation, prevent backflow, shunt or overflow pressure relief function, widely used in various major fields of the national economy, is the important equipment of energy, petrochemical, metallurgy, electric power and other industries, is one of the key equipment of machinery and pipeline and other fixed assets, so far, with the development of industry and technology, valve has penetrated into all walks of life. From the construction industry to the electronics industry, from petroleum and chemical industry to aerospace industry, valve plays an important role.

[0003] So far, the production process of valve is mainly semi-automatic assembly with manual cooperation, because the medium and large plug valve body is mainly a casting part, its outer surface generally will not be finished machining, resulting in difficult to realize accurate positioning in automatic assembly, and the plug valve needs to ensure tightness in internal assembly to meet the sealing requirements of the valve body, and accurate positioning is needed in the automatic assembly process to realize tight assembly, which leads to the difficulty of valve production to get rid of manual work and realize fully automatic assembly, so the production efficiency of valve is difficult to improve, and a large amount of manual assistance is needed, which has high labor cost. SUMMARY

[0004] The main purpose of the present application is to provide a valve body assembly tool, which aims to solve the problem of heavy manual participation in the current valve body assembly, low assembly efficiency and high labor cost.

[0005] To solve the above problems, the present application provides a valve body assembly tool, which comprises a supporting mechanism, a plunger positioning floating mechanism and a locking mechanism, the supporting mechanism is used for supporting the valve body and cooperating with the plunger positioning floating mechanism to position the valve body, the plunger positioning floating mechanism is used for positioning the position of the valve body on the supporting mechanism, and the locking mechanism is used for locking the plunger positioning floating mechanism to prevent the plunger positioning floating mechanism from moving during the process of placing the valve body on the supporting mechanism, so that the positioning of the valve body is lost.

[0006] During the process of assembling the valve stem on the valve body, the valve stem pushes the plunger positioning floating mechanism to separate from the valve body, and at the same time, the supporting mechanism positions the valve stem, after removing the valve stem, the plunger positioning floating mechanism restores the positioning of the valve body.

[0007] In an embodiment, the supporting mechanism comprises:

[0008] A bottom plate, a plurality of supporting columns are fixedly arranged on the bottom plate;

[0009] A placing table is arranged above the bottom plate and fixedly connected with the supporting column, and a positioning hole for positioning the valve rod is arranged on the placing table;

[0010] A positioning frame is arranged on one side of the placing table and fixedly connected with the bottom plate, and a positioning groove for positioning the valve body is arranged on the positioning frame.

[0011] In an embodiment, the plunger positioning floating mechanism comprises:

[0012] A first mounting cylinder is vertically fixedly arranged on the bottom plate and located below the placing table, a first spring is arranged in the first mounting cylinder, the first spring is connected with a connecting plate, the connecting plate is vertically slidably arranged on the first mounting cylinder, and the connecting plate vertically slides downward to compress the first spring;

[0013] A first mounting frame is fixedly arranged on the bottom plate and located below the placing table, a first sliding plate is vertically slidably arranged on the first mounting frame, and the first sliding plate is fixedly connected with the connecting plate;

[0014] A first sliding rod is arranged on the first sliding plate;

[0015] A positioning block is fixedly connected with the first sliding rod, the positioning block vertically slides through the positioning hole, the upper end of the positioning block is higher than the upper surface of the placing table, after the valve body is placed on the upper surface of the placing table, the upper end of the positioning block extends into a mounting hole at the bottom of the valve body, and the positioning block and the positioning groove cooperate to position the valve body, and a second sliding rod and a plug hole are arranged on the positioning block;

[0016] A mounting plate is fixedly connected with the first mounting frame or the bottom plate and located below the placing table, a guide groove is arranged on the mounting plate, the upper end of the guide groove is vertical, and the lower end of the guide groove is inclined, the second sliding rod extends into the guide groove and slides up and down along the guide groove.

[0017] In an embodiment, the second sliding rod vertically slides up and down at the upper end of the guide groove, and the second sliding rod obliquely slides up and down at the lower end of the guide groove to drive the positioning block to approach or move away from the first mounting frame.

[0018] In an embodiment, the plunger positioning floating mechanism comprises a pair of center-symmetrically distributed center axes of the positioning holes, in the process of assembling the valve rod on the valve body, the valve rod moves downward to pass through the mounting hole and the positioning hole to push the two positioning blocks to move downward along the respective guide grooves, and the two positioning blocks are away from each other to clamp and position the valve rod.

[0019] In an embodiment, the locking mechanism comprises:

[0020] A second mounting frame is fixedly connected with the bottom plate;

[0021] A force bar is vertically slidably installed on the mounting frame two, the upper end of the force bar penetrates the placement table and is higher than the upper surface of the placement table and lower than the upper surface of the positioning block, the lower end of the force bar is rotatably installed with a roller;

[0022] A second sliding block is horizontally slidably installed on the bottom plate, the second sliding block is provided with an inclined surface, the roller is in line contact with the inclined surface, and the force bar drives the roller to push the second sliding block to horizontally slide;

[0023] A positioning block is fixedly connected with the second sliding block, one end of the positioning block is horizontally slidably inserted into the insertion hole, and the roller drives the second sliding block to horizontally slide to drive one end of the positioning block to slide out of the insertion hole.

[0024] In an embodiment, the second sliding block is slidably inserted with a second installation cylinder, the second installation cylinder is fixedly connected with the bottom plate, the second installation cylinder is installed with a second spring, and the roller drives the second sliding block to horizontally slide to compress the second spring.

[0025] Beneficial effects: the valve body assembly tool supports the valve body through the supporting mechanism, and the valve body is precisely positioned by the plunger positioning floating mechanism, so that the automatic assembly of the valve rod is completed. Since the surface of the valve rod is precisely machined, the valve rod can be precisely positioned after the valve rod is assembled, which is equivalent to precisely positioning the valve body. Therefore, the subsequent automatic assembly of other components into the valve body is not affected, the precise positioning of the valve body ensures the automatic assembly with high precision, and therefore the valve body assembly is fully automated, manual participation is not required, the assembly efficiency is high, and the labor cost is low. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0027] Figure 1 is a working schematic view of a valve body assembly tool of the present application;

[0028] Figure 2 is Figure 1 a structural schematic view of the valve body in

[0029] Figure 3 is a schematic view of a valve rod assembled to the valve body in Figure 2

[0030] Figure 4 is a structural schematic view of a valve body assembly tool of the present application;

[0031] Figure 5 ​is Figure 4 schematic diagram without the placement table Figure 1 ;

[0032] Figure 6 is Figure 4 schematic diagram without the placement table Figure 2 ;

[0033] Figure 7 is Figure 4 schematic diagram without the placement table Figure 3 .

[0034] The reference signs are explained as follows:

[0035] 1, bottom plate; 2, support column; 3, placement table; 4, mounting cylinder one; 5, spring one; 6, connecting plate; 7, mounting frame one; 8, sliding rail one; 9, sliding plate one; 10, sliding rod one; 11, positioning block; 12, mounting plate; 13, guide groove; 14, mounting frame two; 15, sliding block one; 16, force receiving rod; 17, roller; 18, sliding block two; 19, sliding plate two; 20, limiting block; 21, insertion hole; 22, sliding rail two; 23, valve body; 24, mounting hole; 25, sliding rod two; 26, positioning frame; 27, positioning groove; 28, positioning hole; 29, valve stem; 30, mounting column; 31, mounting cylinder two; 32, spring two; 33, inclined surface. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described 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 skilled in the art without creative labor fall within the scope of protection of the present application.

[0037] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0038] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be internal connection of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. For example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art. When the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0040] The valve body assembly tool supports the valve body 23 through the support mechanism, and the valve body 23 is precisely positioned by means of the plunger positioning floating mechanism, so as to complete the automatic assembly of the valve rod 29. Since the surface of the valve rod 29 is precisely machined, the valve rod 29 can be precisely positioned after the valve rod 29 is assembled, which is equivalent to precisely positioning the valve body 23. Therefore, the subsequent automatic assembly of other components into the valve body 23 is not affected, and the precise positioning of the valve body 23 ensures the high precision of the automatic assembly. Therefore, the valve body 23 assembly realizes full automation, does not need manual participation, has high assembly efficiency, and has low labor cost.

[0041] Specifically, in an embodiment of the application, as shown in Figure 1 The valve body assembly tool comprises a support mechanism, a plunger positioning floating mechanism and a locking mechanism. The support mechanism is used for supporting the valve body 23 and cooperating with the plunger positioning floating mechanism to precisely position the valve body 23. Figures 4-7 As shown in Figure 4 The placing table 3 is provided with a positioning hole 28 for positioning the valve rod 29. The structure of the valve rod 29 is as shown in Figure 3 The structure of the valve body 23 is as shown in Figure 2 The bottom of the valve body 23 is provided with a mounting hole 24. As shown in Figure 1As shown, after the valve body 23 is placed on the placement table 3, the valve stem 29 is assembled into the valve body 23 from top to bottom, and the valve stem 29 is lowered through the installation hole 24 and the positioning hole 28, so that the valve stem 29 can be positioned through the positioning hole 28, and the valve body 23 cannot move horizontally on the placement table 3.

[0042] In addition, the support mechanism further comprises a positioning frame 26, such as Figures 4-7 As shown, the positioning frame 26 is located on one side of the placement table 3 and is fixedly connected with the bottom plate 1, and the positioning frame 26 is provided with a positioning groove 27 for positioning the valve body 23. The valve body 23 of the embodiment is preferably a medium or large valve body 23, such as a plug valve, which is heavy and difficult to move up and down after being placed on the placement table 3. Therefore, it only needs to limit its horizontal movement on the placement table 3 to precisely position it, such as Figures 4-7 As shown, the positioning block 11 of the plunger positioning floating mechanism penetrates the positioning hole 28 from bottom to top, and the upper surface of the positioning block 11 is higher than the upper surface of the placement table 3. When the valve body 23 is placed on the placement table 3, the positioning block 11 is inserted into the installation hole 24, so that the valve body 23 cannot move horizontally on the placement table 3, and the positioning of the valve body 23 by the positioning groove 27 makes the valve body 23 unable to rotate around the positioning block 11, thereby realizing the precise positioning of the valve body 23 by the cooperation of the positioning block 11 and the positioning groove 27. That is, the support mechanism is used to support the valve body 23 and cooperate with the plunger positioning floating mechanism to precisely position the valve body 23.

[0043] In the subsequent process of installing the valve stem 29 on the valve body 23, the valve stem 29 pushes the positioning block 11 downward to separate from the positioning hole 28, and the positioning block 11 no longer positions the valve body 23, but the valve stem 29 is lowered through the installation hole 24 and the positioning hole 28. The surface of the valve stem 29 is finished, so that the valve stem 29 can be positioned through the positioning hole 28, which is equivalent to positioning the valve body 23, and then cooperating with the positioning groove 27 to precisely position the valve body 23, so that the valve body 23 with the valve stem 29 still cannot move horizontally on the placement table 3, ensuring that other components are automatically and accurately assembled into the valve body 23 in the subsequent process. Therefore, the valve body 23 assembly realizes full automation, the precise positioning of the valve body 23 ensures the automation assembly with high precision, and manual intervention is not required, which is high in assembly efficiency and low in labor cost.

[0044] When the valve body 23 is a plug valve, the valve stem 29 is a plug stem.

[0045] In the embodiment, the plunger positioning floating mechanism is used to precisely position the valve body 23 on the support mechanism, such as Figures 4-7As shown, the plunger positioning floating mechanism comprises mounting cylinder 4, mounting frame 7, slide rod 10, positioning block 11, mounting plate 12, the mounting cylinder 4 is vertically fixed on the bottom plate 1 and is located below the placement table 3, spring 5 is arranged in the mounting cylinder 4, the spring 5 is connected with the connecting plate 6, the connecting plate 6 is vertically and slidingly installed on the mounting cylinder 4, the connecting plate 6 vertically slides downward to compress the spring 5, the mounting frame 7 is fixed on the bottom plate 1 and is located below the placement table 3, slide rail 8 is fixed on the mounting frame 7, slide plate 9 is vertically and slidingly installed on the slide rail 8, the slide plate 9 is fixedly connected with the connecting plate 6, the slide plate 9 moves downward to press the spring 5, the slide rod 10 is installed on the slide plate 9, the positioning block 11 is fixedly connected with the slide rod 10, the positioning block 11 vertically slides through the positioning hole 28, the upper end of the positioning block 11 is higher than the upper surface of the placement table 3, in this way, after the valve body 23 is placed on the upper surface of the placement table 3, the upper end of the positioning block 11 extends into the mounting hole 24 at the bottom of the valve body 23, and the positioning groove 27 cooperates to finely position the valve body 23, so as to realize automatic assembly of the valve rod 29.

[0046] In the embodiment, as shown in Figures 5-7 The positioning block 11 is provided with slide rod 25 and insertion hole 21, the mounting plate 12 is fixedly connected with the mounting frame 7 or the bottom plate 1 and is located below the placement table 3, the mounting plate 12 is provided with guide groove 13, the upper end of the guide groove 13 is vertical and the lower end is inclined, the slide rod 25 extends into the guide groove 13 and slides up and down along the guide groove 13, specifically, the slide rod 25 vertically slides up and down at the upper end of the guide groove 13 to drive the positioning block 11 to vertically move up and down, the positioning block 11 vertically moves up and down to drive the slide plate 9 to synchronously move up and down, in the process of installing the valve rod 29 on the valve body 23, the valve rod 29 pushes the positioning block 11 to move downward to press the spring 5, after the valve body 23 is removed from the placement table 3 after being assembled, the compressed spring 5 pushes the positioning block 11 to move upward to reset to Figure 4 The position shown.

[0047] In the embodiment, as shown in Figures 5-7As shown, the slide rod two 25 is inclined to slide up and down at the lower end of the guide groove 13 to drive the positioning block 11 to move obliquely downward / upward to approach or move away from the mounting frame 7. When the plunger positioning floating mechanism has a pair and is centrally symmetrically distributed with the center axis of the positioning hole 28 as the center, in the process of assembling the valve stem 29 to the valve body 23, after the valve stem 29 moves downward to pass through the mounting hole 24 and the positioning hole 28 to push the two positioning blocks 11 to move obliquely downward along the respective guide grooves 13, the two positioning blocks 11 are away from each other to clamp and position the valve stem 29, the two positioning blocks 11 clamp and position the lower end of the valve stem 29 to cooperate with the positioning hole 28 to realize double positioning of the valve stem 29, which ensures accurate positioning of the valve stem 29, that is, ensures accurate positioning of the valve body 23, which does not affect subsequent automatic assembly of other components to the valve body 23, and accurate positioning of the valve body 23 ensures automatic assembly with high precision. Therefore, the valve body 23 is assembled to realize full automation, without manual participation, high assembly efficiency and low labor cost.

[0048] In the embodiment, as shown in the figure, Figures 4-7 The plunger positioning floating mechanism has a pair and is centrally symmetrically distributed with the center axis of the positioning hole 28 as the center, the upper ends of the positioning blocks 11 of the two plunger positioning floating mechanisms are combined to form a cylindrical through positioning hole 28 inserted into the mounting hole 24, after the two positioning blocks 11 move obliquely downward along the respective guide grooves 13, the spacing between the two positioning blocks 11 gradually increases, when the spacing between the two positioning blocks 11 increases to be greater than the diameter of the valve stem 29, the lower end of the valve stem 29 is inserted between the two positioning blocks 11, at this time, the valve stem 29 no longer pushes the positioning block 11 downward, the compressed spring one 5 pushes the two positioning blocks 11 to clamp and fix the valve stem 29 through the guide groove 13, to realize positioning of the valve stem 29.

[0049] Preferably, as shown in the figure, Figure 7 One of the plunger positioning floating mechanisms includes two mounting plates 12, which are designed to fix two slide rods two 25 to each positioning block 11, each slide rod two 25 is slidably inserted into the guide groove 13 of one mounting plate 12, and the two slide rods two 25 are arranged on the left and right sides of the positioning block 11, which helps the positioning block 11 to move stably.

[0050] In the embodiment, as shown in the figure, Figure 1As shown, during the process of assembling the valve stem 29 to the valve body 23, the valve stem 29 pushes the positioning block 11 of the plunger positioning floating mechanism to separate from the valve body 23, while the support mechanism positions the valve stem 29 by means of the positioning hole 28, the valve body 23 is assembled, and after the valve stem 29 is removed, the plunger positioning floating mechanism resets the positioning block 11 to restore the accurate positioning of the next valve body 23. In this design, the plunger positioning floating mechanism does not affect the assembly of the valve stem 29 to the valve body 23, and after the assembly of one valve body 23 is completed and removed from the support mechanism, the plunger positioning floating mechanism can reset itself to position the next valve body 23. In this design, combined with the automatic valve body 23 clamping mechanism, automatic placement of the valve body 23 on the support mechanism is realized, the valve body assembly tool automatically accurately positions the valve body 23 to complete the fully automatic assembly. During the assembly process, the valve stem 29 is assembled first, and then other components are assembled. After the assembly is completed, the valve body 23 clamping mechanism takes away the valve body 23. The entire valve body 23 assembly process is fully automated and does not require manual intervention, significantly improving the valve body 23 assembly efficiency and reducing labor costs.

[0051] In this embodiment, the locking mechanism is used to lock the plunger positioning floating mechanism to prevent the valve body 23 from being placed on the placement table 3 when the valve body 23 is not stable. The valve body 23 is lowered to press the positioning block 11 below the upper surface of the placement table 3, and loses the positioning effect on the valve body 23. Specifically, as shown, Figures 4-7 The locking mechanism includes a mounting frame two 14, a force rod 16, a sliding block two 18, and a limiting block 20. The mounting frame two 14 is fixedly connected with the bottom plate 1. The sliding block one 15 is vertically slidably installed on the mounting frame two 14. The sliding block one 15 is fixedly connected with the force rod 16. The force rod 16 is L-shaped. The upper end of the force rod 16 penetrates the placement table 3 and is higher than the upper surface of the placement table 3 and lower than the upper surface of the positioning block 11, as shown in Figure 4In this way, during the process of placing the valve body 23 on the placement table 3, the valve body 23 first presses down the force receiving rod 16, and then contacts the upper surface of the placement table 3. The valve body 23 pressing down the force receiving rod 16 can cause the locking mechanism to lose the locking of the plunger positioning floating mechanism, and prepare for the subsequent assembly of the valve rod 29. At the same time, before the valve body 23 contacts the force receiving rod 16, the positioning block 11 has been inserted into the mounting hole 24 to position the valve body 23 placed on the placement plate. Moreover, at this time, because the force receiving rod 16 is not pressed, the locking mechanism still locks the plunger positioning floating mechanism. Even if the positioning block 11 is not aligned with the mounting hole 24, the valve body 23 will not press down the positioning block 11 to move below the upper surface of the placement table 3, so as to ensure that the positioning block 11 will not lose the positioning effect on the valve body 23. The automatic tooling clamp clamps the valve body 23 and moves it vertically downward to place the valve body 23 on the placement table 3. In this process, the valve body 23 first contacts the positioning block 11. After the positioning block 11 is inserted into the mounting hole 24 to position the valve body 23, the valve body 23 can continue to descend and press down the force receiving rod 16 to unlock the locking of the locking mechanism on the plunger positioning floating mechanism. Finally, the valve body 23 contacts the upper surface of the placement table 3 to realize the stable placement of the valve body 23 on the upper surface of the placement plate.

[0052] In this embodiment, as shown in Figure 5 the lower end of the force receiving rod 16 is rotatably installed with a roller 17. A slide rail two 22 is horizontally fixed on the bottom plate 1. A slide plate two 19 is slidably installed on the slide rail two 22. The slide plate two 19 is fixed with the slide block two 18 and a limiting block 20. An inclined surface 33 is arranged on the slide block two 18. The roller 17 is in line contact with the inclined surface 33. The force receiving rod 16 descends to drive the roller 17 to push the slide block two 18, the slide plate two 19, and the limiting block 20 to slide horizontally along the slide rail two 22. The limiting block 20 is L-shaped, and its upper end is horizontally inserted into a insertion hole 21 to prevent the positioning block 11 from moving up and down, thereby achieving the locking of the plunger positioning floating mechanism. The roller 17 pushes the slide block two 18, the slide plate two 19, and the limiting block 20 to slide horizontally along the slide rail two 22, thereby driving the upper end of the limiting block 20 to slide out of the insertion hole 21, and losing the locking of the plunger positioning floating mechanism, thereby preparing for the subsequent assembly of the valve rod 29.

[0053] In this embodiment, further, as shown in Figure 5 the slide block two 18 is slidably inserted with a mounting cylinder two 31. The mounting cylinder two 31 is fixedly installed on a mounting column 30. The mounting column 30 is fixedly connected with the bottom plate 1. A spring two 32 is installed in the mounting cylinder two 31. One end of the spring two 32 extends into the slide block two 18 and is connected with the slide block two 18. The roller 17 pushes the slide block two 18 to slide horizontally to compress the spring two 32. After the valve body 23 is assembled and removed from the placement table 3, the compressed spring two 32 pushes the slide block two 18 to move reversely to reset, thereby resetting the force receiving rod 16 and the limiting block 20 to Figure 5When the valve body 23 is moved upward by the automated fixture clamp, the valve stem 29 still penetrates the positioning hole 28, and the upper end of the limiting block 20 abuts against the valve stem 29. After the limiting block 11 is moved upward and reset, the upper end of the limiting block 20 can be inserted into the insertion hole 21, and the reset is completed.

[0054] The above description is only preferred embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation, direct / indirect application in other related technical fields, or the like, which is made under the inventive concept of the present application, and based on the content of the present application and the drawings, is included in the patent protection scope of the present application.

Claims

1. A valve body assembly tool characterized by, The support mechanism is used for supporting the valve body and cooperating with the plunger positioning floating mechanism to jointly position the valve body, the plunger positioning floating mechanism is used for positioning the position of the valve body on the support mechanism, and the locking mechanism is used for locking the plunger positioning floating mechanism to prevent the plunger positioning floating mechanism from being displaced and losing the positioning of the valve body in the process of placing the valve body on the support mechanism; In the process of assembling the valve rod to the valve body, the valve rod pushes the plunger positioning floating mechanism to separate from the valve body, meanwhile the support mechanism positions the valve rod, after the valve rod is removed, the plunger positioning floating mechanism restores the positioning of the valve body; The support mechanism comprises: a bottom plate, a plurality of support columns are fixedly arranged on the bottom plate; a placing table is arranged above the bottom plate and is fixedly connected with the support columns, the placing table is provided with a positioning hole for positioning the valve rod; a positioning frame is arranged on one side of the placing table and is fixedly connected with the bottom plate, the positioning frame is provided with a positioning groove for positioning the valve body; The plunger positioning floating mechanism comprises: a mounting cylinder one is vertically fixedly arranged on the bottom plate and is located below the placing table, a spring one is arranged in the mounting cylinder one, the spring one is connected with a connecting plate, the connecting plate is vertically and slidingly arranged on the mounting cylinder one, and the connecting plate vertically and downwardly slidingly compresses the spring one; a mounting frame one is fixedly arranged on the bottom plate and is located below the placing table, a sliding plate one is vertically and slidingly arranged on the mounting frame one, and the sliding plate one is fixedly connected with the connecting plate; a sliding rod one is arranged on the sliding plate one; a positioning block is fixedly connected with the sliding rod one, the positioning block vertically and slidingly penetrates through the positioning hole, the upper end of the positioning block is higher than the upper surface of the placing table, after the valve body is placed on the upper surface of the placing table, the upper end of the positioning block extends into a mounting hole in the bottom of the valve body, and the positioning block and the positioning groove jointly position the valve body, the positioning block is provided with a sliding rod two and a insertion hole; a mounting plate is fixedly connected with the mounting frame one or the bottom plate and is located below the placing table, the mounting plate is provided with a guide groove, the upper end of the guide groove is vertical, and the lower end of the guide groove is inclined, the sliding rod two extends into the guide groove and slides up and down along the guide groove; the sliding rod two vertically and upwardly or downwardly slides at the upper end of the guide groove, the sliding rod two is inclined and upwardly or downwardly slides at the lower end of the guide groove and drives the positioning block to be close to or away from the mounting frame one; the plunger positioning floating mechanism is a pair of and is centrally symmetrically distributed with the center axis of the positioning hole as the center, in the process of assembling the valve rod to the valve body, the valve rod downwardly penetrates through the mounting hole and the positioning hole, pushes the two positioning blocks to move downwardly along the respective guide grooves, and the two positioning blocks are away from each other to clamp and position the valve rod.

2. A valve body assembly tool as claimed in claim 1, wherein The locking mechanism comprises: a mounting frame two is fixedly connected with the bottom plate; a force receiving rod is vertically and slidingly arranged on the mounting frame two, the upper end of the force receiving rod penetrates through the placing table and is higher than the upper surface of the placing table and lower than the upper surface of the positioning block, and a roller is rotationally arranged at the lower end of the force receiving rod; a sliding block two is horizontally and slidingly arranged on the bottom plate, the sliding block two is provided with an inclined surface, the roller is in line contact with the inclined surface, and the force receiving rod downwardly drives the roller to push the sliding block two to horizontally slide. The limiting block is fixedly connected with the second sliding block, one end of the limiting block is horizontally inserted into the insertion hole, and the roller pushes the second sliding block to horizontally slide and drive one end of the limiting block to slide out of the insertion hole.

3. A valve body assembly tool as claimed in claim 2, wherein The installation cylinder two is slidably inserted on the second sliding block, the installation cylinder two is fixedly connected with the bottom plate, the spring two is installed in the installation cylinder two, and the roller pushes the second sliding block to horizontally slide and compress the spring two.

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