Assembly tool and assembly method for valve body

Abstract

The present invention provides an assembly tool and method for a valve body. The assembly tool comprises: a support base; multiple clamps, each connected to the support base and spaced apart along a predetermined direction. The clamps have a retractable position suitable for allowing the passage of parts to be assembled; and a drive assembly connected to the support base for driving the clamps to grasp and release parts to be assembled along a predetermined direction. The assembly tool utilizes multiple clamps to simultaneously grasp and release multiple parts to be assembled, shortening assembly time and improving assembly efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of assembly fixtures, and in particular to an assembly tool and an assembly method for a valve body. Background Art

[0002] While automation technology has become widely used in automotive manufacturing processes such as stamping, welding, and painting, it remains a challenge in assembly applications, such as the subassembly of valve assemblies for commercial vehicle trailers. Before assembly, multiple sets of sealing rings, retaining rings, and threaded sleeves must be pre-assembled into corresponding mounting holes on the valve body.

[0003] The valve body needs to be assembled with multiple sets of sealing rings, snap rings and screw sleeves. To assemble a set of sealing rings, snap rings and screw sleeves, the existing fixture needs to be taken and placed three times, which is time-consuming and has low assembly efficiency.

[0004] Currently, no effective solution has been proposed to the problem of low efficiency in valve body assembly using existing fixtures. Summary of the Invention

[0005] The main purpose of the present invention is to provide an assembly tool and an assembly method for a valve body, so as to solve the technical problem of low efficiency of valve body assembly using existing fixtures.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided an assembly tool for a valve body, comprising: a support seat; a clamp, wherein the clamps are multiple, the multiple clamps are respectively connected to the support seat, the multiple clamps are arranged at intervals along a preset direction, and the clamps have an avoidance state suitable for the passage of parts to be assembled; a drive component, the drive component is connected to the support seat, and the drive component is used to drive the clamp to grab and release the parts to be assembled along the preset direction.

[0007] Furthermore, the multiple clamps include: a first clamp, which is connected to the support seat through a connecting rod, and the first clamp is arranged close to the support seat; a second clamp, which is connected to the support seat through a connecting rod, and the second clamp is arranged away from the support seat; a third clamp, which is located between the first clamp and the second clamp, and the third clamp is arranged to form a through cavity, which is arranged along the axial direction of the connecting rod, and the inner diameter of the through cavity is larger than the outer diameter of the first clamp, the outer diameter of the second clamp and the outer diameter of the connecting rod, and a pick-up and placement space suitable for the parts to be assembled to pass through is formed between the third clamp and the connecting rod; wherein, the first clamp, the second clamp and the third clamp are all coaxially arranged with the connecting rod.

[0008] Furthermore, the connecting rod is connected to the support seat, and the first clamp is sleeved on the connecting rod, and the first clamp is an electromagnet.

[0009] Furthermore, the connecting rod is connected to the support seat, and the second clamp is connected to the end of the connecting rod away from the support seat. The second clamp includes a plurality of first jaws, and the plurality of first jaws are arranged around the connecting rod. The plurality of first jaws have a retracted state in which they are retracted inward to separate from the parts to be assembled, and a grasping state in which they are extended outward to support the parts to be assembled.

[0010] Furthermore, the third clamp is movably connected to the support seat, and the third clamp is movably arranged relative to the support seat along the axial direction of the connecting rod.

[0011] Furthermore, the third clamp includes a plurality of second jaws, which are connected to the support seat and are arranged around the connecting rod. The plurality of second jaws have a grasping state in which they are retracted inward to clamp the parts to be assembled, and a releasing state in which they are extended outward to release the parts to be assembled.

[0012] Furthermore, the connecting rod is provided with a limiting portion, which is used to axially block the parts to be assembled clamped by the third clamp.

[0013] Furthermore, the assembly tool also includes a position sensor, which is connected to the support seat and electrically connected to the drive component. The position sensor is used to detect the position of the third clamp and transmit the position signal to the drive component.

[0014] Furthermore, the support seat has an accommodating cavity, and the driving assembly is located in the accommodating cavity.

[0015] According to another aspect of the present invention, a method for assembling a valve body is provided, in which the valve body is assembled using the above-mentioned assembly tool. The assembly method includes: moving the assembly tool to directly above the parts to be assembled, and using corresponding clamps to sequentially clamp multiple parts to be assembled, wherein the multiple parts to be assembled include threaded sleeves, retaining rings, and sealing rings; after completing the parts grabbing, the assembly tool is moved to directly above the assembly hole of the valve body, the corresponding clamp is opened, and the sealing ring, retaining ring, and threaded sleeve are sequentially installed into the assembly hole.

[0016] Using the technical solution of the present invention, multiple fixtures on an assembly tool are spaced apart along a preset direction. A drive assembly drives the multiple fixtures to sequentially grasp multiple parts to be assembled along the preset direction, and the drive assembly drives the multiple fixtures to sequentially release multiple parts to be assembled along the preset direction. This assembly tool uses multiple fixtures to simultaneously grasp and release multiple parts to be assembled, shortening assembly time and improving assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It shows a schematic structural diagram of the assembly tool in the present invention;

[0019] Figure 2 A schematic diagram of the assembly tool in a clamping state according to the present invention is shown;

[0020] Figure 3 A schematic diagram of the assembly tool in the released state according to the present invention is shown;

[0021] Figure 4 A schematic diagram showing the positional relationship between the drive assembly and the support base in the present invention is shown;

[0022] Figure 5 Shows a schematic structural diagram of the connecting rod in the present invention;

[0023] Figure 6 The figure shows the assembly relationship between the valve body and the parts to be assembled in the present invention.

[0024] The above drawings include the following reference numerals:

[0025] 1. Support seat;

[0026] 11. First supporting shell; 12. Second supporting shell; 13. Third supporting shell;

[0027] 2. First fixture;

[0028] 3. Second fixture;

[0029] 31. First clamping jaw;

[0030] 4. The third fixture;

[0031] 41. Second clamping jaw; 42. Through cavity;

[0032] 5. Connecting rod;

[0033] 51. First rod section; 52. Second rod section; 53. Third rod section; 54. Position limiting portion;

[0034] 6. Position sensor;

[0035] 7. Drive components;

[0036] 8. Screw sleeve;

[0037] 9. Snap ring;

[0038] 100, sealing ring;

[0039] 110, valve body;

[0040] 111, assembly hole;

[0041] 120. Guide rod. DETAILED DESCRIPTION

[0042] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0043] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0044] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0045] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in a variety of different forms and should not be interpreted as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of this application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for the sake of clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to represent the same devices, and thus their descriptions will be omitted.

[0046] In the prior art, the valve body has 7 assembly holes, and each assembly hole needs to be assembled with a sealing ring, a retaining ring and a threaded sleeve in sequence. The existing fixture separately grabs, moves and places the above three parts, that is, the three operations of grabbing, moving and placing require 7 cycles, a total of 21 operations, which is time-consuming and has low assembly efficiency.

[0047] For the above-mentioned valve body assembly, the following improvements were made to the assembly tooling to improve assembly efficiency.

[0048] Example 1

[0049] Combine Figures 1 to 6 As shown, according to a specific embodiment of the present application, an assembly tool for a valve body is provided.

[0050] Specifically, the assembly tooling includes a support base 1, a fixture, and a drive assembly 7. Multiple fixtures are connected to the support base 1 and spaced apart along a predetermined direction. Each fixture has a retractable position to allow the parts to pass through. The drive assembly 7 is connected to the support base 1 and is used to drive the fixtures to grasp and release the parts to be assembled along a predetermined direction.

[0051] In an embodiment of the present application, multiple fixtures on an assembly tool are spaced apart along a preset direction. A drive assembly 7 drives the multiple fixtures to sequentially grasp multiple parts to be assembled along the preset direction, and the drive assembly 7 drives the multiple fixtures to sequentially release multiple parts to be assembled along the preset direction. This assembly tool, which utilizes multiple fixtures to simultaneously grasp and release multiple parts to be assembled, shortens assembly time and improves assembly efficiency.

[0052] It should be noted that the specific structure of each clamp is not limited and can be suction-type, external gripping, internal support, etc., as long as it can grasp the part to be assembled. The avoidance state of the clamp refers to the movement of a clamp away from other clamps to allow the passage of the part to be assembled; or a clamp is adjusted to a clamping or releasing state to make way for the part to be assembled, allowing the part to pass.

[0053] In an exemplary embodiment of the present application, the plurality of clamps include a first clamp 2, a second clamp 3 and a third clamp 4. The first clamp 2 is connected to the support seat 1 through a connecting rod 5, and the first clamp 2 is arranged close to the support seat 1. The second clamp 3 is connected to the support seat 1 through a connecting rod 5, and the second clamp 3 is arranged away from the support seat 1. The third clamp 4 is located between the first clamp 2 and the second clamp 3, and the third clamp 4 is arranged to form a through cavity 42, which is arranged to pass through along the axial direction of the connecting rod 5. The inner diameter of the through cavity 42 is larger than the outer diameter of the first clamp 2, the outer diameter of the second clamp 3 and the outer diameter of the connecting rod 5, and a pick-up and placement space suitable for the parts to be assembled to pass through is formed between the third clamp 4 and the connecting rod 5. Among them, the first clamp 2, the second clamp 3 and the third clamp 4 are all coaxially arranged with the connecting rod 5.

[0054] Specifically, combined Figure 1 、 Figure 2 、 Figure 3As shown, the connecting rod 5 is vertically connected to one end face of the support base 1, and the connecting rod 5 is located in the middle of the support base 1. The first clamp 2 is sleeved on the end of the connecting rod 5 close to the support base 1, the second clamp 3 is connected to the end of the connecting rod 5 away from the support base 1, and the third clamp 4 is located between the first clamp 2 and the second clamp 3. The third clamp 4 is directly connected to the end face of the support base 1 and envelops the outside of the connecting rod 5. A pick-and-place space is formed between the third clamp 4 and the connecting rod 5. The first part to be assembled passes through the pick-and-place space and is then grasped by the first clamp 2.

[0055] Among them, the parts to be assembled are divided into three types. The first parts to be assembled are grasped by the first clamp 2 , the second parts to be assembled are grasped by the second clamp 3 , and the third parts to be assembled are grasped by the third clamp 4 .

[0056] Furthermore, the connecting rod 5 is connected to the support seat 1 , and the first clamp 2 is sleeved on the connecting rod 5 , and the first clamp 2 is an electromagnet.

[0057] Specifically, the first part to be assembled is an iron part. The electromagnet, when powered on, absorbs and grabs the first part to be assembled. When powered off, the electromagnet releases and assembles the first part to be assembled.

[0058] Furthermore, the connecting rod 5 is connected to the support base 1, and the second clamp 3 is connected to the end of the connecting rod 5 away from the support base 1. The second clamp 3 includes a plurality of first jaws 31, and the plurality of first jaws 31 are arranged around the connecting rod 5. The plurality of first jaws 31 have a retracted state in which they are retracted inward to separate from the parts to be assembled, and a grasping state in which they are extended outward to support the parts to be assembled.

[0059] Specifically, combined Figure 2 and Figure 3 As shown, the second clamp 3 includes three first jaws 31, which are integrated into a connecting tube. That is, the first end of the connecting tube is connected to the support base 1, and the second end of the connecting tube is evenly distributed with three first jaws 31 in the circumferential direction. A first airbag is provided inside the first jaw 31. The first airbag is connected to the air source via a pipeline. When gas is introduced into the first airbag, the first jaw 31 extends outward to support the second part to be assembled. When the gas in the first airbag is withdrawn, the first jaw 31 retracts inward to release the second part to be assembled. The second part to be assembled is an annular structure, and the first jaw 31 engages with the inner wall of the second part to be assembled.

[0060] When the second clamp 3 is in the avoidance state, the first clamping jaw 31 is retracted inwards, so that the second clamp 3 can be inserted into other parts to be assembled.

[0061] Furthermore, the third clamp 4 is movably connected to the support base 1 , and the third clamp 4 is movably arranged relative to the support base 1 along the axial direction of the connecting rod 5 .

[0062] It should be noted that the third clamp 4 is movably arranged along the axial direction of the connecting rod 5. When grabbing the third part to be assembled, the third clamp 4 moves in the direction away from the support seat 1 to approach the third part to be assembled. That is, there is no need to drive the assembly tooling to move as a whole, only the third clamp 4 needs to be driven to move.

[0063] Furthermore, the third clamp 4 includes a plurality of second jaws 41, which are connected to the support seat 1, and are arranged around the connecting rod 5. The plurality of second jaws 41 have a grasping state of retracting inward to clamp the parts to be assembled, and a releasing state of extending outward to release the parts to be assembled.

[0064] Specifically, combined Figure 2 and Figure 3 As shown, the third clamp 4 includes two second jaws 41, each connected to the support base 1. The two second jaws 41 are symmetrically located on either side of the connecting rod 5. A second airbag is located within the second jaw 41. The second airbag is connected to an air source via a pipeline. When gas is introduced into the second airbag, the second jaw 41 contracts inward, i.e., bends inward to grasp the third part to be assembled. When the gas in the second airbag is withdrawn, the second jaw 41 extends outward, i.e., returns to its initial state, allowing the third part to be assembled to be installed.

[0065] When the third clamp 4 is in the avoidance state, the second clamping jaw 41 extends outwards to allow the first part to be assembled to pass through the third clamp 4 .

[0066] Furthermore, the connecting rod 5 is provided with a limiting portion 54 , which is used to axially block the part to be assembled clamped by the third clamp 4 .

[0067] Specifically, combined Figure 5 As shown, the connecting rod 5 is a stepped rod, comprising a first rod segment 51, a second rod segment 52, and a third rod segment 53. The diameter of the second rod segment 52 is larger than that of the third rod segment 53. A limiting surface is formed between the second and third rod segments 52, 53, which serves as a limiting portion 54 to axially block and limit the third part to be assembled. The connecting rod 5 is connected to the support base 1 via the first rod segment 51. The first clamp 2 is mounted on the first rod segment 51, and the second clamp 3 is connected to the end of the third rod segment 53 away from the second rod segment 52.

[0068] It should be noted that the third part to be assembled is a ring structure, the inner diameter of the third part to be assembled is smaller than the outer diameter of the second rod segment 52, the inner diameter of the third part to be assembled is larger than the outer diameter of the third rod segment 53, and the third part to be assembled abuts against the limit surface after passing through the third rod segment 53.

[0069] The connecting rod 5 is a hollow rod, and the pipeline connected to the first airbag of the first clamping jaw 31 passes through the inside of the connecting rod 5 and extends to the inside of the support base 1 to avoid exposure of the pipeline.

[0070] In an embodiment of the present application, the assembly tool also includes a position sensor 6, which is connected to the support seat 1 and electrically connected to the drive component 7. The position sensor 6 is used to detect the position of the third fixture 4 and transmit the position signal to the drive component 7.

[0071] Specifically, if Figure 4 As shown, the position sensor 6 is encapsulated inside the support base 1. The position sensor 6 is used to detect the position of the third clamp 4. The driving component 7 drives the third clamp 4 to move according to the received position signal so that the third clamp 4 completes the clamping of the third part to be assembled.

[0072] Furthermore, the support base 1 has an accommodating cavity, and the driving assembly 7 is located in the accommodating cavity.

[0073] Specifically, combined Figure 1 、 Figure 4 As shown, the support base 1 includes a first support shell 11, a second support shell 12 and a third support shell 13. The first support shell 11, the second support shell 12 and the third support shell 13 are connected to form an accommodating cavity, and the drive assembly 7 is located in the accommodating cavity.

[0074] The driving assembly 7 includes an electric push rod, a first air pump, a second air pump and a relay.

[0075] The second clamping jaw 41 is fixedly connected to the third supporting shell 13 through the guide rod 120, the guide rod 120 is slidably connected to the first supporting shell 11, and the driving end of the electric push rod is connected to the third supporting shell 13. The electric push rod is used to drive the third supporting shell 13 to move along the axial direction of the connecting rod 5 to realize the axial movement of the second clamping jaw 41 along the connecting rod 5, so that the second clamping jaw 41 approaches and moves away from the third part to be assembled.

[0076] The first air pump is used to introduce gas into or exhaust gas from the first air bag of the first clamping jaw 31 to drive the second clamp 3 to grasp and release the second part to be assembled.

[0077] The second air pump is used to introduce gas into or exhaust gas from the second air bag of the second clamping jaw 41 to drive the third clamp 4 to grasp and release the third part to be assembled.

[0078] The relay is used to control the power supply to energize the first clamp 2 (electromagnet) to achieve the grasping and releasing of the first part to be assembled.

[0079] In an embodiment of the present application, the first part to be assembled is the screw sleeve 8, the second part to be assembled is the sealing ring 100, and the third part to be assembled is the retaining ring 9. The sealing ring 100, the retaining ring 9 and the screw sleeve 8 are all annular structures. The sealing ring 100, the retaining ring 9 and the screw sleeve 8 need to be assembled in sequence. Due to the limited size of the assembly hole 111, the size of each clamp needs to be designed to be as small as possible.

[0080] The first clamp 2 is an electromagnet, which is used to grab the screw sleeve 8. The radial size of the electromagnet is consistent with the radial size of the screw sleeve 8.

[0081] The second clamp 3 is an internal support type clamp. The sealing ring 100 is small in size and easy to deform. The internal support type clamp is used to grasp the sealing ring 100. The radial size of the second clamp 3 is smaller than the outer diameter of the sealing ring 100. It can not only grasp it firmly, but also facilitate the second clamp 3 to be inserted into the assembly hole 111 to release the sealing ring 100.

[0082] The third clamp 4 is an external support type clamp, which can not only grab the clamping ring 9, but also assist in grabbing the screw sleeve 8. That is, after the third clamp 4 grabs the screw sleeve 8 to a preset position, it uses an electromagnet to electromagnetically adsorb and clamp the screw sleeve 8.

[0083] Example 2

[0084] According to another specific embodiment of the present application, a valve body assembly method is provided. The valve body 110 is assembled using the assembly tool in Example 1. The assembly method includes the following steps:

[0085] Step S1: Move the assembly tool to the top of the parts to be assembled, and use the corresponding clamp to clamp the multiple parts to be assembled in sequence. The multiple parts to be assembled include the screw sleeve 8, the retaining ring 9 and the sealing ring 100.

[0086] Step S2: After completing the parts grabbing, the assembly tool is moved to the top of the assembly hole 111 of the valve body 110 , the corresponding clamp is opened, and the sealing ring 100 , the retaining ring 9 and the threaded sleeve 8 are sequentially installed into the assembly hole 111 .

[0087] In the embodiment of the present application, the first part to be assembled is the threaded sleeve 8, the second part to be assembled is the sealing ring 100, and the third part to be assembled is the retaining ring 9. The first clamp 2 is an electromagnet that grasps the threaded sleeve 8. The second clamp 3 is an internally supported jaw that grasps the sealing ring 100. The third clamp 4 is an externally supported jaw that not only grasps the retaining ring 9 but also assists in grasping the threaded sleeve 8.

[0088] Specifically, step S1 includes the following steps:

[0089] Step S11: The assembly tool moves to the top of the screw sleeve 8 to be grasped according to visual guidance, and the third clamp 4 moves to the first grasping height along the axial direction of the connecting rod 5 to grasp the screw sleeve 8. The third clamp 4 carries the screw sleeve 8 and moves in the opposite direction to the top dead center. The first clamp 2 is energized to electromagnetically adsorb the screw sleeve 8. After completing the grasping of the screw sleeve 8, the third clamp 4 releases the screw sleeve 8.

[0090] Among them, the top dead center is the first limit point of the third clamp 4 close to the support seat 1. When the third clamp 4 is at the top dead center, the distance between the screw sleeve 8 and the first clamp 2 is the smallest, and the first grabbing height is the storage height of the screw sleeve 8.

[0091] Step S12: After completing the grabbing of the screw sleeve 8, the assembly tool moves to the top of the retaining ring 9 to be grabbed according to visual guidance, and the third clamp 4 moves along the axial direction of the connecting rod 5 to the second grabbing height to grab the retaining ring 9. The third clamp 4 carries the retaining ring 9 and moves in the opposite direction to the stop point. The third clamp 4 maintains the clamping state to complete the grabbing of the retaining ring 9.

[0092] When the third clamp 4 is located at the stop point, the snap ring 9 is in contact with the limiting portion 54 for limiting position, and the second gripping height is the storage height of the snap ring 9 .

[0093] Step S13: After completing the grabbing of the retaining ring 9, the assembly tool moves according to visual guidance to the top of the sealing ring 100 to be grabbed, and the assembly tool is moved so that the grabbing end of the second clamp 3 and the bottom of the sealing ring 100 are in the same plane. The second clamp 3 is opened to support the sealing ring 100, and the second clamp 3 remains in a clamping state.

[0094] Specifically, step S2 includes the following steps:

[0095] Step S21: The assembly tool together with the captured set of sealing ring 100 , retaining ring 9 , and screw sleeve 8 is moved to the top of the assembly hole 111 according to visual guidance, and then the second fixture 3 and the sealing ring 100 are inserted into the assembly hole 111 .

[0096] Step S22: Open the second clamp 3, the third clamp 4 and the first clamp 2 in sequence, and complete the release and assembly of the sealing ring 100, the retaining ring 9 and the threaded sleeve 8 in sequence.

[0097] Repeat the above steps to complete the assembly of the valve body 110 .

[0098] In order to adapt to the assembly tool, the valve body 110 is turned over by using a positioner so that the assembly hole 111 to be assembled matches the assembly tool.

[0099] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0100] 1. Use multiple fixtures to complete the grasping and releasing of multiple parts to be assembled at one time, shortening the assembly time and improving assembly efficiency.

[0101] 2. Using an electromagnet to grab the screw sleeve 8 helps to reduce the size of the first clamp 2.

[0102] 3. Use the inner supporting jaws to grab the sealing ring, so that the second clamp 3 can carry the sealing ring into the assembly hole.

[0103] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0104] In addition to the above, it should be noted that references to "one embodiment," "another embodiment," "an embodiment," and the like in this specification refer to specific features, structures, or characteristics described in conjunction with that embodiment as included in at least one embodiment generally described in this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in conjunction with any embodiment, it is intended that such feature, structure, or characteristic, when implemented in conjunction with other embodiments, also falls within the scope of the present invention.

[0105] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0106] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. An assembly tool for a valve body, characterized in that: include: Support seat (1); A clamp, wherein the clamp is multiple, the multiple clamps are respectively connected to the support seat (1), the multiple clamps are spaced apart along a preset direction, and the clamps have an avoidance state suitable for the passage of the parts to be assembled; A drive assembly (7), the drive assembly (7) being connected to the support seat (1), and the drive assembly (7) being used to drive the clamp to grasp and release the part to be assembled along the preset direction; The plurality of clamps include: A first clamp (2), the first clamp (2) being connected to the support base (1) via a connecting rod (5), and the first clamp (2) being arranged close to the support base (1); a second clamp (3), the second clamp (3) being connected to the support base (1) via the connecting rod (5), and the second clamp (3) being arranged away from the support base (1); a third clamp (4), the third clamp (4) being located between the first clamp (2) and the second clamp (3), the third clamp (4) being arranged to form a through cavity (42), the through cavity (42) being arranged to penetrate along the axial direction of the connecting rod (5), the inner diameter of the through cavity (42) being larger than the outer diameter of the first clamp (2), the outer diameter of the second clamp (3) and the outer diameter of the connecting rod (5), and a pick-up and placement space suitable for the passage of parts to be assembled is formed between the third clamp (4) and the connecting rod (5); Wherein, the first clamp (2), the second clamp (3) and the third clamp (4) are all coaxially arranged with the connecting rod (5).

2. The assembly tool according to claim 1, characterized in that: The connecting rod (5) is connected to the support seat (1), the first clamp (2) is sleeved on the connecting rod (5), and the first clamp (2) is an electromagnet.

3. The assembly tool according to claim 1, characterized in that: The connecting rod (5) is connected to the support seat (1), the second clamp (3) is connected to an end of the connecting rod (5) away from the support seat (1), and the second clamp (3) includes a plurality of first clamps (31), the plurality of first clamps (31) are arranged around the connecting rod (5), and the plurality of first clamps (31) have a retracted state in which they are retracted inwardly to separate from the part to be assembled, and a grasping state in which they are extended outwardly to support the part to be assembled.

4. The assembly tool according to claim 1, characterized in that: The third clamp (4) is movably connected to the support seat (1), and the third clamp (4) is movably arranged relative to the support seat (1) along the axial direction of the connecting rod (5).

5. The assembly tool according to claim 1 or 4, characterized in that: The third clamp (4) includes a plurality of second clamps (41), the plurality of second clamps (41) are connected to the support seat (1), the plurality of second clamps (41) are arranged around the connecting rod (5), and the plurality of second clamps (41) have a grasping state of being retracted inward to clamp the part to be assembled, and a releasing state of being extended outward to release the part to be assembled.

6. The assembly tool according to claim 5, characterized in that: The connecting rod (5) is provided with a limiting portion (54), and the limiting portion (54) is used to axially block the part to be assembled clamped by the third clamp (4).

7. The assembly tool according to claim 4, characterized in that: The assembly tool further comprises a position sensor (6), the position sensor (6) being connected to the support seat (1), the position sensor (6) being electrically connected to the drive assembly (7), and the position sensor (6) being used to detect the position of the third fixture (4) and transmit a signal of the position to the drive assembly (7).

8. The assembly tool according to claim 1, characterized in that: The support seat (1) has an accommodating cavity, and the driving assembly (7) is located in the accommodating cavity.

9. A method for assembling a valve body, characterized in that: The valve body (110) is assembled using the assembly tool according to any one of claims 1 to 8, the assembly method comprising: Moving the assembly tool to the top of the parts to be assembled, and using corresponding clamps to sequentially clamp the multiple parts to be assembled, wherein the multiple parts to be assembled include a screw sleeve (8), a retaining ring (9) and a sealing ring (100); After completing the parts grabbing, the assembly tool is moved to the position directly above the assembly hole (111) of the valve body (110), the corresponding clamp is opened, and the sealing ring (100), the retaining ring (9) and the screw sleeve (8) are sequentially installed into the assembly hole (111).

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