Valve seat assembly assembly mechanism

Abstract

The utility model discloses a valve seat subassembly assembly mechanism, valve body assembly technical field, including first fixture, second fixture and jaw assembly, first fixture upper end is equipped with first profiling location groove, its shape is with valve seat cover plate appearance adaptation, can make valve seat cover plate accurate place in predetermined position, second fixture upper end is equipped with second profiling location groove, with valve seat body appearance adaptation, is used for accurate placement valve seat body, both are fixed through bolt in work platform, and keep predetermined interval, jaw assembly can move along X -axis and Z -axis, contain positioning member and jaw cylinder, and the jaw cylinder has a pair of jaws, and the jaw moving track is 90 degrees distribution with positioning member, and meets in positioning member center, and the center position positioning ring corresponds valve seat cover plate center, is used for grabbing positioning, and the jaw can grab valve seat cover plate on first fixture and install to valve seat body, realizes quick assembly.

Description

Technical Field

[0001] This utility model belongs to the field of valve body assembly technology and relates to a valve seat assembly mechanism. Background Technology

[0002] like Figure 1 The valve seat assembly shown is applied to the valve body and is a key component for controlling the flow of the medium. It includes a valve seat body 1 and a valve seat cover plate 2 disposed on the upper end face of the valve seat body 1. The valve seat body 1 is the basic load-bearing component, and the valve seat cover plate 2 is fastened to the valve seat body 1 through a snap-fit ​​structure set on the edge, thereby completing the assembly and fixation of the two.

[0003] In the current assembly process of valve seat assemblies, operators need to manually align the clips of the valve seat cover plate 2 with the grooves of the valve seat body 1, and precise axial pressure must be applied when the clips are engaged to ensure proper engagement, which requires a high level of operational skill. With the increasing demands for assembly cycle time in industrial automation production, optimizing existing assembly processes, overcoming the limitations of manual operation, and achieving rapid and accurate installation of the valve seat body and valve seat cover plate are problems that need to be solved. Utility Model Content

[0004] The purpose of this utility model is to provide a valve seat assembly mechanism that enables rapid assembly of the valve seat cover and the valve seat body through effective positioning.

[0005] The objective of this utility model is achieved through the following technical solution: A valve seat assembly assembly mechanism, comprising: The first fixture has a first contour positioning groove at its upper end. The shape of the first contour positioning groove is adapted to the valve seat cover plate, so that the valve seat cover plate placed on it is accurately positioned along a predetermined position. The second fixture has a second contour positioning groove at its upper end. The shape of the second contour positioning groove is adapted to the valve seat body, so that the valve seat body placed on it is accurately positioned at a predetermined position. The first fixture and the second fixture are fixedly connected to the work platform by bolts, and a predetermined distance is maintained between them. A gripper assembly, movable along the X and Z axes, includes a positioning element and a gripper cylinder; the gripper cylinder is equipped with a pair of grippers, the movement trajectory of the grippers is distributed at a 90-degree angle with the positioning element, and the center of the positioning element is the intersection point of the two; the center of the positioning element has a positioning ring corresponding to the center of the valve seat cover plate, the positioning ring is used to position the valve seat cover plate during the gripping process; The gripper assembly's grippers can grasp the valve seat cover plate on the first fixture, move the valve seat cover plate above the second fixture, and then press it down and install it on the valve seat body, thus completing the assembly of the valve seat assembly.

[0006] As a further improvement of one embodiment of the present invention, the gripper cylinder is mounted on the moving mechanism, which consists of an X-axis moving component and a Z-axis moving component. The X-axis moving component drives the Z-axis moving component to move back and forth along the X-axis direction, and the Z-axis moving component drives the gripper cylinder to move back and forth along the Z-axis direction.

[0007] As a further improvement of one embodiment of the present invention, the X-axis moving component includes a column and a horizontal base plate fixed on the column. A lead screw module distributed along the X-axis direction is provided on the horizontal base plate. The lead screw module is driven by a servo motor, and a vertical base plate is provided on the slider of the lead screw module.

[0008] As a further improvement of one embodiment of the present invention, the horizontal base plates on both sides of the lead screw module are provided with linear slide rails distributed along the X-axis direction, and the sliders on the linear slide rails are fixedly connected to the vertical base plate.

[0009] As a further improvement of one embodiment of the present invention, the Z-axis moving assembly includes a vertical cylinder, which is fixed on a vertical base plate by a connecting plate. The telescopic end of the vertical cylinder is provided with a cylinder carrier plate, and the gripper cylinder is fixedly disposed on the cylinder carrier plate.

[0010] As a further improvement of one embodiment of the present invention, the vertical cylinder is provided with an upper limit member and a lower limit member for controlling the extension and retraction distance.

[0011] As a further improvement of one embodiment of this utility model, the working platform is set on a jig carrier plate, and the jig carrier plate is provided with a set of protruding positioning posts, which can be inserted into the positioning holes at the lower end of the working platform; positioning blocks are provided on the jig carrier plates located on both sides of the working platform, and the positioning blocks are provided with first internal threaded holes; the working platform is provided with second internal threaded holes corresponding to the first internal threaded holes on both sides; and the screw on the handrail can be threadedly connected to the first internal threaded holes and the second internal threaded holes.

[0012] As a further improvement of one embodiment of the present utility model, the fixture carrier plate is provided with a proximity switch for monitoring whether the work platform is installed in place, and the fixture carrier plate is provided with a sensor for monitoring whether the valve seat cover plate and the valve seat body are placed on the first fixture and the second fixture respectively.

[0013] The above technical solution has the following beneficial effects: the valve seat cover and valve seat body are oriented by the first fixture and the second fixture, and the valve seat cover is accurately installed on the valve seat body by the positioning and gripping operation of the gripper assembly. Attached Figure Description

[0014] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0015] The structures, proportions, sizes, etc. shown in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0016] Figure 1 This is a schematic diagram of the assembly of the valve seat body and the valve seat cover plate provided by this utility model.

[0017] Figure 2 A three-dimensional structural diagram of this utility model.

[0018] Figure 3 A schematic diagram of the working platform and its surrounding structure provided by this utility model.

[0019] Figure 4 A schematic diagram of the jig carrier plate and its surrounding structure provided by this utility model.

[0020] Figure 5 A schematic diagram of the gripper assembly and its surrounding structure provided by this utility model.

[0021] In the picture: 1. Valve seat body; 2. Valve seat cover; 3. The first fixture; 31. First contour positioning groove; 4. The second fixture; 41. Second contour positioning groove; 5. Gripper assembly; 51. Positioning component; 511. Positioning ring; 52. Gripper cylinder; 53. Gripper; 6. Work platform; 71. Fixture carrier plate; 72. Positioning post; 73. Positioning block; 74. Proximity switch; 75. Sensor; 8. Mounting bracket; 91. Column; 92. Horizontal substrate; 93. Lead screw module; 94. Servo motor; 95. Vertical substrate; 96. Vertical cylinder; 97. Connecting plate; 98. Cylinder carrier plate; 99. Linear guide rail. Detailed Implementation

[0022] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0023] First embodiment, such as Figures 1-5 As shown, a valve seat assembly mechanism is used to achieve precise assembly of valve seat body 1 and valve seat cover 2. Its core structure includes a first fixture 3, a second fixture 4 and a gripper assembly 5. The components work together to ensure assembly accuracy and efficiency.

[0024] The first fixture 3 serves as the positioning carrier for the valve seat cover 2. Its upper surface is machined with a first contour positioning groove 31, the shape of which is adapted to the valve seat cover 2, ensuring the valve seat cover 2 is accurately positioned at a predetermined location. In practical applications, an elastic buffer layer (such as a rubber pad) can be provided on the inner wall of the first contour positioning groove 31 as needed to prevent damage to the valve seat cover 2 due to collisions during placement.

[0025] The second fixture 4 is used to position the valve seat body 1. Its upper second contour positioning groove 41 is adapted to the valve seat body 1, ensuring that the valve seat body 1 placed on it is accurately positioned according to a predetermined location. Both the first fixture 3 and the second fixture 4 are bolted to the work platform 6, ensuring that their positions on the work platform 6 are fixed and that the spacing meets the predetermined assembly requirements. This "predetermined spacing" needs to be determined based on the assembly dimensions of the valve seat body 1 and the valve seat cover plate 2, ensuring that the subsequent gripper assembly 5 can accurately complete the gripping and assembly actions.

[0026] The gripper assembly 5 is a key component for gripping and assembling the valve seat cover 2. It has the ability to move along the X-axis (horizontal direction) and Z-axis (vertical direction). This movement can be achieved through conventional mechanical transmission methods such as motor-driven ball screws or cylinder pushes. The specific transmission structure can be selected according to actual production needs, all within the protection range of this mechanism. The gripper assembly 5 includes a positioning element 51 and a gripper cylinder 52. A pair of grippers 53 on the gripper cylinder 52 are used to grip the valve seat cover 2. The movement trajectory of the grippers 53 is distributed at a 90-degree angle with the positioning element 51, and the two intersect at the center of the positioning element 51. This arrangement ensures that the grippers 53 apply uniform force to the valve seat cover 2 during gripping, avoiding deviation during the gripping process. The positioning ring 511 at the center of the positioning element 51 corresponds to the center of the valve seat cover 2. During gripping, the positioning ring 511 is pre-positioned at the center of the valve seat cover 2, and then clamped by the grippers 53, further improving the gripping accuracy.

[0027] The work platform 6 is mounted on the fixture carrier plate 71, and the two are precisely fixed together through a positioning and locking structure. Specifically, the fixture carrier plate 71 has a set of protruding positioning pins 72, the number of which can be set to 2-4 depending on the size of the work platform 6. The outer diameter of the positioning pins 72 is adapted to the inner diameter of the positioning holes at the lower end of the work platform 6. During assembly, the positioning pins 72 are inserted into the positioning holes to restrict the horizontal movement of the work platform 6. Positioning blocks 73 are provided on the fixture carrier plate 71 on both sides of the work platform 6. The first internal threaded hole on the positioning block 73 corresponds coaxially with the second internal threaded holes on both sides of the work platform 6. By screwing the screws on the handles into the two internal threaded holes in sequence, the work platform 6 can be locked onto the fixture carrier plate 71.

[0028] In addition, a proximity switch 74 is provided on the fixture carrier plate 71. Its installation position corresponds to the bottom of the work platform 6. When the work platform 6 is completely in the positioning position, the proximity switch 74 triggers a signal to provide feedback on the installation position; if it is not in position, a warning is issued.

[0029] Similarly, the fixture carrier plate 71 is equipped with two sensors 75, whose detection ends are respectively aligned with the positioning slots of the first fixture 3 and the second fixture 4. They can monitor whether the valve seat cover plate 2 and the valve seat body 1 are accurately placed through infrared, laser or electromagnetic induction. The number of sensors 75 can correspond one-to-one with the fixtures to ensure that the material state is correct before assembly.

[0030] In use, the fixture carrier plate 71 and its assembled work platform 6, first fixture 3, second fixture 4, and other components are placed as a single module in the preset installation position of the fixing frame 8. To improve installation convenience and positioning accuracy, the back of the fixture carrier plate 71 is provided with a slot that matches the fixing frame 8. The shape and number of the slots can be adjusted according to the structure of the fixing frame 8, such as rectangular slots or dovetail slots, as long as the pre-positioning of the fixture carrier plate 71 and the fixing frame 8 can be achieved. After the pre-positioning is completed, the fixture carrier plate 71 is locked to the fixed frame 8 with bolts. When locking, it is necessary to ensure that the fixture carrier plate 71 and the fixed frame 8 fit tightly to avoid loosening during subsequent assembly and to ensure the stable operation of the entire assembly mechanism.

[0031] The gripper cylinder 52 moves along the X and Z axes via a moving mechanism. Specifically, the moving mechanism consists of an X-axis moving component and a Z-axis moving component. The X-axis moving component drives the Z-axis moving component to move back and forth along the X-axis, and the Z-axis moving component drives the gripper cylinder 52 to move back and forth along the Z-axis. The two work together to achieve precise positioning of the gripper cylinder 52.

[0032] The X-axis moving assembly includes a column 91 and a horizontal base plate 92 fixed to the top of the column 91. A lead screw module 93 extending along the X-axis direction is mounted on the horizontal base plate 92. The lead screw module 93 is driven by a servo motor 94, and a vertical base plate 95 is fixedly connected to its slider. The Z-axis moving assembly includes a vertical cylinder 96, which is fixed to the side of the vertical base plate 95 via a connecting plate 97. A cylinder carrier plate 98 is mounted on its telescopic end, and a gripper cylinder 52 is fixed on the cylinder carrier plate 98.

[0033] Furthermore, linear guide rails 99 extending along the X-axis are provided on the horizontal base plates 92 on both sides of the lead screw module 93, and the sliders of the linear guide rails 99 are fixedly connected to the vertical base plate 95. The linear guide rails 99 cooperate with the lead screw module 93 to enhance the stability of the vertical base plate 95 when it moves along the X-axis and prevent it from deviating or shaking.

[0034] The vertical cylinder 96 is equipped with an upper limit component and a lower limit component to control the extension and retraction distance. By adjusting the position of the two limit components, the maximum extension and retraction of the vertical cylinder 96 can be precisely limited.

[0035] The valve seat assembly mechanism provided by this utility model is a component of the solenoid valve assembly equipment. It is closely integrated with other parts of the solenoid valve assembly equipment and shares the control system, power supply system, gas supply system, vacuum system, etc. of the solenoid valve assembly equipment. The coordinated operation of each link is realized through a unified interface and operation instructions.

[0036] In use, the gripper 53 of the gripper assembly 5 opens under the drive of the gripper cylinder 52 and moves above the first contour positioning groove 31 of the first fixture 3. The positioning ring 511 first completes the pre-positioning with the center of the valve seat cover plate 2, and then the gripper 53 closes to clamp the valve seat cover plate 2.

[0037] Next, the moving mechanism drives the gripper assembly 5 to move along the X and Z axes, moving the valve seat cover 2 to directly above the valve seat body 1 of the second fixture 4, and then moves it down along the Z axis to precisely align and install the valve seat cover 2 on the valve seat body 1.

[0038] The entire process achieves efficient and precise assembly of the valve seat assembly through the cooperation of various positioning structures and moving components. The grasping, conveying and assembly action flow can be preset by the program. To adapt to valve seat assemblies of different specifications, only the positioning parameters need to be adjusted, thus achieving efficient and precise assembly of the valve seat assembly.

[0039] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0040] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0041] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A valve seat assembly assembly mechanism, characterized in that, include: The first fixture has a first contour positioning groove at its upper end. The shape of the first contour positioning groove is adapted to the valve seat cover plate, so that the valve seat cover plate placed on it is accurately positioned along a predetermined position. The second fixture has a second contour positioning groove at its upper end. The shape of the second contour positioning groove is adapted to the valve seat body, so that the valve seat body placed on it is accurately positioned at a predetermined position. The first fixture and the second fixture are fixedly connected to the work platform by bolts, and a predetermined distance is maintained between them. A gripper assembly, movable along the X and Z axes, includes a positioning element and a gripper cylinder; the gripper cylinder is equipped with a pair of grippers, the movement trajectory of the grippers is distributed at a 90-degree angle with the positioning element, and the center of the positioning element is the intersection point of the two; the center of the positioning element has a positioning ring corresponding to the center of the valve seat cover plate, the positioning ring is used to position the valve seat cover plate during the gripping process; The gripper assembly's grippers can grasp the valve seat cover plate on the first fixture, move the valve seat cover plate above the second fixture, and then press it down and install it on the valve seat body, thus completing the assembly of the valve seat assembly.

2. The valve seat assembly mechanism according to claim 1, characterized in that, The gripper cylinder is mounted on the moving mechanism, which consists of an X-axis moving component and a Z-axis moving component. The X-axis moving component drives the Z-axis moving component to move back and forth along the X-axis direction, and the Z-axis moving component drives the gripper cylinder to move back and forth along the Z-axis direction.

3. The valve seat assembly mechanism according to claim 2, characterized in that, The X-axis moving component includes a column and a horizontal base plate fixed on the column. A lead screw module distributed along the X-axis direction is provided on the horizontal base plate. The lead screw module is driven by a servo motor, and a vertical base plate is provided on the slider of the lead screw module.

4. The valve seat assembly mechanism according to claim 3, characterized in that, The lead screw module has linear slide rails distributed along the X-axis on the horizontal base plates on both sides, and the sliders on the linear slide rails are fixedly connected to the vertical base plate.

5. The valve seat assembly mechanism according to claim 3, characterized in that, The Z-axis moving assembly includes a vertical cylinder, which is fixed to a vertical base plate via a connecting plate. The telescopic end of the vertical cylinder is provided with a cylinder carrier plate, and the gripper cylinder is fixedly mounted on the cylinder carrier plate.

6. The valve seat assembly mechanism according to claim 5, characterized in that, The vertical cylinder is equipped with an upper limit device and a lower limit device to control the extension and retraction distance.

7. The valve seat assembly mechanism according to claim 1, characterized in that, The work platform is mounted on a jig carrier plate, which has a set of protruding positioning pins that can be inserted into positioning holes at the lower end of the work platform. Positioning blocks are provided on the jig carrier plates on both sides of the work platform, and the positioning blocks have first internal threaded holes. The work platform has second internal threaded holes on both sides that correspond to the first internal threaded holes. The screws on the handrails can be threadedly connected to the first and second internal threaded holes.

8. The valve seat assembly assembly mechanism according to claim 7, characterized in that, The fixture carrier plate is equipped with a proximity switch for monitoring whether the work platform is installed in place, and the fixture carrier plate is equipped with a sensor for monitoring whether the valve seat cover plate and valve seat body are placed on the first fixture and the second fixture respectively.

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