Automatic assembling device special for ball valve

Abstract

The invention relates to an automatic assembling device special for ball valves. The automatic assembling device comprises a circulating conveying table used for conveying valve bodies. The supporting frame is provided with a sliding way in the conveying direction of the circulating conveying table. The clamp displacement mechanisms are installed in the sliding ways, and the multiple clamp displacement mechanisms are arranged and used for installing a valve seat clamp, a ball clamp, a valve rod clamp and a valve deck clamp correspondingly. The valve seat clamp is used for clamping the valve seat to move to the position where the valve body is located along the sliding way and installing the valve seat on the valve body. The ball clamp is used for clamping a ball to move to the position where the valve seat is located along the sliding way and installing the ball in the center of the valve seat. The valve rod clamp is used for clamping the valve rod to move to the position where the ball body is located along the slide way and installing the valve rod on the ball body; the valve cover clamp is used for clamping the valve cover to move to the position of the valve body along the slide way and mounting the valve cover on the valve body; efficient, accurate and automatic assembling of the ball valve is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of ball valve assembly, and in particular relates to an automatic assembly device dedicated to ball valves. Background Art

[0002] The sealing performance requirements of ball valves are very high. During assembly, it is necessary to ensure that the sealing surfaces between the valve body, ball and valve seat are completely in contact. Any slight deviation or contamination may cause water or gas leakage. Secondly, the ball and stem connection parts of the ball valve require high matching accuracy. Any improper installation may affect the smoothness of the valve opening and closing, and even cause the valve to fail to operate normally. In addition, the assembly process needs to strictly follow technical requirements and standards to ensure that the size, material and assembly process of each component meet the requirements. This is crucial to ensure the long-term reliability and safety of the valve. Therefore, ball valve assembly requires experienced operators, precise tools and equipment, and strict quality control to ensure the best assembly effect.

[0003] The existing ball valve assembly has the following defects: 1. Most of them are assembled manually, which is not only slow, but also after long-term operation, the fatigue of workers leads to a further decrease in work efficiency, increasing the production cycle and cost; 2. The existing ball valve assembly line is difficult to fix on one production line for the assembly of ball valves of various specifications. At the same time, the existing production line disperses the assembly stations, and the production line occupies a large area and requires a large investment; 3. The ball valve needs to be installed with left and right valve seats. The existing production line needs to be equipped with two sets of ball valve assembly fixtures, which is inconvenient to assemble; technical personnel in this field urgently need to solve the above technical problems. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides an automatic assembly device dedicated to a ball valve, so as to realize efficient and accurate automatic assembly of the ball valve.

[0005] The present invention adopts the following technical solution:

[0006] An automatic assembly device dedicated to ball valves, comprising a circulating conveying platform for conveying valve bodies;

[0007] A support frame, in which the circulating conveyor platform is arranged, and a slideway is provided on the support frame and along the transport direction of the circulating conveyor platform;

[0008] A fixture displacement mechanism, which is installed in the slideway and can move horizontally along the slideway, wherein a plurality of fixture displacement mechanisms are arranged and are used to install a valve seat fixture, a ball fixture, a valve stem fixture and a valve cover fixture respectively;

[0009] A valve seat clamp, which is used to clamp the valve seat and move it along the slideway to the position of the valve body, and install the valve seat on the valve body;

[0010] A ball clamp, used to clamp the ball and move it along the slideway to the position of the valve seat, and install the ball at the center of the valve seat;

[0011] A valve stem clamp, which is used to clamp the valve stem and move it along the slideway to the position of the ball, and install the valve stem on the ball;

[0012] The valve cover clamp is used to clamp the valve cover and move it along the slideway to the position of the valve body, and then install the valve cover on the valve body.

[0013] In a preferred embodiment of the present invention, the circulating conveying platform comprises a hollow assembly platform, and a circulating conveying mechanism installed in the assembly platform;

[0014] The circulating conveying mechanism includes a transfer platform, a first lifting platform and a second lifting platform installed on both sides of the transfer platform, the first lifting platform and the second lifting platform are arranged on both sides of the assembly table, and cargo conveying components are installed on the transfer platform, the first lifting platform and the second lifting platform.

[0015] In a preferred embodiment of the present invention, the object conveying assembly includes a loading plate slidably mounted on the transfer platform, the first lifting platform or the second lifting platform, a second rack is mounted on the transfer platform, the first lifting platform or the second lifting platform, a second motor is mounted on the loading plate, and a second gear is mounted on the output end of the second motor and meshed with the second rack;

[0016] A third rack that is butted against the second rack is installed on the assembly platform.

[0017] In a preferred embodiment of the present invention, the fixture displacement mechanism includes a displacement seat, a first motor mounted on the displacement seat, a first gear mounted on an output end of the first motor, and a first rack meshing with the first gear;

[0018] The displacement seat is slidably engaged in the slideway, and the first rack is installed in the slideway;

[0019] A driving component, a slider installed at the output end of the driving component, and a first telescopic rod vertically installed at the lower end of the slider are installed at the lower end of the displacement seat. The slider is driven by the driving component to move horizontally along the displacement seat.

[0020] In a preferred embodiment of the present invention, the valve seat clamp includes a first positioning jaw installed at the end of the first telescopic rod, the clamping surface of the first positioning jaw faces one side, the valve seat is sleeved on the first positioning jaw, and a first visual component is installed at the center of the first positioning jaw.

[0021] In a preferred embodiment of the present invention, it further comprises a valve seat transfer mechanism, which is mounted on the assembly platform;

[0022] It comprises a carrier frame symmetrically mounted on both sides of the assembly platform, a second telescopic rod horizontally mounted on the carrier frame, and a second positioning clamping claw mounted on the telescopic end of the second telescopic rod, wherein the two second positioning clamping claws are mounted opposite to each other;

[0023] When the valve seat is installed, the second positioning jaw is coaxial with the first positioning jaw, and the jaws of the second positioning jaw and the jaws of the first positioning jaw are arranged at an angle to each other.

[0024] In a preferred embodiment of the present invention, the sphere clamp includes a guide plate vertically installed at the end of the first telescopic rod, and a third positioning jaw installed on the side of the guide plate away from the first telescopic rod, the third positioning jaw is used for clamping the sphere, and a second visual component is installed on the guide plate in the center of the third positioning jaw.

[0025] In a preferred embodiment of the present invention, the valve stem clamp includes a fourth positioning jaw vertically installed at the end of the first telescopic rod, and a third visual component installed at the center of the fourth positioning jaw.

[0026] In a preferred embodiment of the present invention, the valve cover clamp includes a fifth positioning jaw vertically installed at the end of the first telescopic rod, a guide rod is installed at the center of the fifth positioning jaw, and a fourth visual component is installed at the end of the guide rod.

[0027] Beneficial effects:

[0028] The invention discloses an automatic assembly device for ball valves, wherein the circulating conveying platform is designed to adopt multiple platforms to work in coordination, thereby realizing the circulating conveying of the valve body, and facilitating loading and unloading and assembly operations.

[0029] The clamp displacement mechanism designed in the present invention realizes the precise movement of each clamp in three-dimensional space through the lateral, longitudinal and axial displacement functions, adapts to complex assembly requirements, and can significantly improve assembly efficiency and accuracy;

[0030] Each assembly fixture of the present invention adopts visual coordination for positioning, clamping and assembly to complete the sequential assembly between the units of the ball valve, with high positioning and assembly accuracy, and corresponding positioning jaws are designed for each assembly unit to ensure the clamping force while ensuring the assembly effect;

[0031] The present invention designs a valve seat fixture and a valve seat transfer mechanism for the assembly of the valve seat, forming a three-rod linkage structure, so that the installation of the left and right valve seats can be realized without replacing the fixture, which is simple and efficient.

[0032] The present invention discloses an automatic assembly device specially designed for ball valves, which realizes efficient and precise automatic assembly of ball valves through the coordinated work of a circulating conveying platform, a fixture displacement mechanism and various assembly fixtures. It occupies a small area and requires little investment. At the same time, the design also fully considers the positioning accuracy, clamping stability and adaptability to multiple specifications during the assembly process, is particularly suitable for large-scale production environments, and can significantly improve production efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a structural schematic diagram of an automatic assembly device dedicated to a ball valve according to the present invention;

[0034] Figure 2 The structure of the circulating conveyor platform of the present invention is shown in FIG. Figure 1 ;

[0035] Figure 3 The structure of the circulating conveyor platform of the present invention is shown in FIG. Figure 2 ;

[0036] Figure 4 It is a structural schematic diagram of the clamp displacement mechanism of the present invention;

[0037] Figure 5 It is a schematic diagram of the installation structure of the valve seat clamp and the first telescopic rod of the present invention;

[0038] Figure 6 This is a schematic diagram of the structure of the valve seat adapter mechanism in the valve body of the present invention;

[0039] Figure 7 It is a partial structural schematic diagram of the valve seat adapter mechanism and the valve seat fixture of the present invention;

[0040] Figure 8 The schematic diagram of the structure of the ball clamp of the present invention is

[0041] Fig. 9 It is a schematic diagram of the installation structure of the valve stem clamp and the first telescopic rod of the present invention;

[0042] Fig.10 Schematic diagram of the installation structure of the valve cover clamp and the clamp displacement mechanism of the present invention Figure 1 ;

[0043] Fig.11 Schematic diagram of the installation structure of the valve cover clamp and the clamp displacement mechanism of the present invention Figure 2 ;

[0044] Fig.12 The structure of the circulating conveyor platform of the present invention is shown in FIG. Figure 3 .

[0045] In the figure: 1 circulating conveying platform, 11 assembly platform, 12 transfer platform, 13 first lifting platform, 14 second lifting platform, 15 object conveying assembly, 151 object carrying plate, 152 second rack, 153 second motor, 154 limiting component;

[0046] 2 support frame;

[0047] 3 clamp displacement mechanism, 31 displacement seat, 32 first motor, 33 slider, 34 first rack, 35 driving component, 36 first telescopic rod;

[0048] 4 valve seat fixture, 41 first positioning jaw, 42 first visual component;

[0049] 5 spherical fixture, 51 guide plate, 52 third positioning jaw, 53 second visual component;

[0050] 6 valve stem clamp, 61 fourth positioning jaw, 62 third visual component;

[0051] 7 valve cover clamp, 71 fifth positioning jaw, 72 guide rod, 73 fourth visual component;

[0052] 8 valve seat adapter mechanism, 81 bearing frame, 82 second telescopic rod, 83 second positioning clamping claw. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] like Figure 1 As shown, an automatic assembly device dedicated to ball valves includes a circulating conveying platform 1 for conveying valve bodies;

[0055] A support frame 2, in which the above-mentioned circulating conveying platform 1 is arranged, and a slideway is provided on the support frame 2 and along the transportation direction of the circulating conveying platform 1;

[0056] A fixture displacement mechanism 3, which is installed in the above-mentioned slideway and can move horizontally along the above-mentioned slideway. The above-mentioned fixture displacement mechanism 3 is arranged in plurality and is used to install the valve seat fixture 4, the ball fixture 5, the valve stem fixture 6 and the valve cover fixture 7 respectively;

[0057] A valve seat clamp 4 is used to clamp the valve seat and move it along the slideway to the position of the valve body, and install the valve seat on the valve body;

[0058] The ball clamp 5 is used to clamp the ball and move it along the slideway to the position of the valve seat, and install the ball at the center of the valve seat;

[0059] A valve stem clamp 6, which is used to clamp the valve stem and move it along the slideway to the position of the ball, and install the valve stem on the ball;

[0060] A valve cover clamp 7, which is used to clamp the valve cover and move it along the slideway to the position of the valve body, and then install the valve cover on the valve body;

[0061] The working principle and beneficial effects of the above embodiments are as follows:

[0062] The present invention is aimed at the automatic assembly of ball valves, and designs a circulating conveying platform 1 for conveying unassembled valve bodies and cooperating with conveying unloading materials after the assembly is completed;

[0063] A support frame 2 is installed on the circulating conveying table 1, which serves as the frame structure of the entire device. A slideway is arranged on the support frame 2 to provide a moving track for the fixture displacement mechanism 3. At the same time, the fixture displacement mechanism 3 carries different fixtures to the designated position for assembly operation;

[0064] in,

[0065] The valve seat clamp 4, the ball clamp 5, the valve stem clamp 6 and the valve cover clamp 7 are used to clamp and sequentially install different components of the ball valve into the valve body;

[0066] The entire assembly process of the present invention is automated, manual operations are reduced, assembly consistency is good, and assembly efficiency and precision are improved. Through the design of the rotating conveyor table and the slideway, the overall structure of the device is compact and occupies a small space. The fixture displacement mechanism moves along the slideway and can adapt to the assembly process of ball valves of various specifications.

[0067] In one embodiment,

[0068] like Figure 2-3 As shown in 12, the above-mentioned circulating conveying platform 1 includes a hollow assembly platform 11 and a circulating conveying mechanism installed in the assembly platform 11;

[0069] The circulation conveying mechanism includes a transfer platform 12, a first lifting platform 13 and a second lifting platform 14 installed on both sides of the transfer platform 12, the first lifting platform 13 and the second lifting platform 14 are arranged on both sides of the assembly platform 11, and a load conveying assembly 15 is installed on the transfer platform 12, the first lifting platform 13 and the second lifting platform 14;

[0070] The above-mentioned object conveying assembly 15 includes an object carrier 151 slidably mounted on the transfer platform 12, the first lifting platform 13 or the second lifting platform 14, a second rack 152 is mounted on the transfer platform 12, the first lifting platform 13 or the second lifting platform 14, a second motor 153 mounted on the object carrier 151, and a second gear mounted on the output end of the second motor 153 and meshing with the second rack 152;

[0071] A third rack that is docked with the second rack 152 is installed on the assembly platform 11;

[0072] The assembly platform 11 of the present invention is the core frame of the entire cyclic conveying platform 1, and is designed with a hollow structure. The transfer platform 12 is located inside the assembly platform 11, and a first lifting platform 13 and a second lifting platform 14 are designed on both sides thereof. The transfer platform 12, the first lifting platform 13 and the second lifting platform 14 are all equipped with a load conveying assembly 15 to realize the cyclic movement of multiple load conveying assemblies 15;

[0073] First, the unassembled valve body is placed on the loading plate 151 of the first lifting platform 13, and is driven by the second motor 153 to move to the assembly platform 11 for assembly operations of various processes. After the assembly is completed, the second motor 153 drives it to move to the second lifting platform 14, unloads the material on the second lifting platform 14, and then its empty loading plate 151 moves downward from the second lifting platform 14 to the position of the transfer platform 12, and the above steps are repeated;

[0074] It should be noted that

[0075] The first lifting platform 13 and the second lifting platform 14 are both provided with lifting rods, which can be lifted and lowered by hydraulic or pneumatic means, which is a prior art and will not be described in detail here;

[0076] Limiting components 154 are installed on both sides of the carrier plate 151. When the valve body is placed on the carrier plate 151, the valve body is clamped and limited by the limiting components 154. The limiting components 154 can be configured as limiting clamping claws.

[0077] The present invention realizes a cyclic and uninterrupted feeding action by designing the first lifting platform 13 and the second lifting platform 14, so as to facilitate simultaneous assembly and transportation of the ball valve.

[0078] In one embodiment,

[0079] like Figure 4 As shown, the fixture displacement mechanism 3 includes a displacement seat 31, a first motor 32 mounted on the displacement seat 31, a first gear mounted on the output end of the first motor 32, and a first rack 34 meshing with the first gear;

[0080] The displacement seat 31 is slidably engaged in the slideway, and the first rack 34 is installed in the slideway;

[0081] A driving component 35, a slider 33 installed at the output end of the driving component 35, and a first telescopic rod 36 installed vertically at the lower end of the slider 33 are installed at the lower end of the displacement seat 31. The slider 33 is driven by the driving component 35 to move horizontally along the displacement seat 31.

[0082] The displacement seat 31 of the present invention and the slide adopt an "I"-shaped assembly structure, the displacement seat 31 is slidably embedded in the above-mentioned slide, and is driven by the first motor 32 to move horizontally along the slide to achieve forward and backward displacement;

[0083] A slider 33 is installed at the lower end of the displacement seat 31, and is driven by a driving component 35 to move laterally along the displacement seat 31 to achieve left-right displacement; at the same time, a first telescopic rod 36 is installed at the lower end of the slider 33 to achieve up-and-down displacement;

[0084] The fixture displacement mechanism 3 of the present invention realizes the precise movement of each fixture in three-dimensional space through the lateral, longitudinal and axial displacement functions, adapts to complex assembly requirements, and can significantly improve assembly efficiency and accuracy.

[0085] In one embodiment,

[0086] like Figure 5 As shown, the valve seat fixture 4 comprises a first positioning jaw 41 mounted at the end of the first telescopic rod 36, the clamping surface of the first positioning jaw 41 faces one side, the valve seat is sleeved on the first positioning jaw 41, and a first visual component 42 is mounted at the center of the first positioning jaw 41;

[0087] During operation, the unassembled valve body is transported to the assembly platform 11 by the carrier conveying assembly 15. The valve seat is divided into two parts, one is the left valve seat and the other is the right valve seat. The valve seat clamp 4 is driven by the clamp displacement mechanism 3 to clamp any valve seat and transport it to the inside of the valve body along with the clamp displacement mechanism 3.

[0088] In the actual production process, two sets of valve seat clamps 4 can be configured to clamp a left valve seat and a right valve seat respectively. Figure 1 Not shown in the figure, the valve seats are transported into the valve body in sequence for installation to improve assembly efficiency.

[0089] It should be noted that

[0090] The first positioning clamp 41 comprises a first clamp seat mounted at the end of the first telescopic rod 36, a plurality of telescopic first support plates are evenly distributed along the circumference of the first clamp seat, a first limit block is provided on one end of the first support plate close to the first telescopic rod 36, the valve seat is sleeved on the first support plate and is limited by the first limit block;

[0091] The first visual component 42 is installed at the center of the first clamping seat, which can be used to accurately dock with the center position of the side flow channel of the valve body.

[0092] In one embodiment,

[0093] like Figure 6-7 As shown, it also includes a valve seat transfer mechanism 8, which is installed on the above-mentioned assembly platform 11;

[0094] It includes a carrier frame 81 symmetrically mounted on both sides of the assembly platform 11, a second telescopic rod 82 horizontally mounted on the carrier frame 81, and a second positioning clamp 83 mounted on the telescopic end of the second telescopic rod 82, and the two second positioning clamps 83 are mounted opposite to each other;

[0095] When the valve seat is installed, the second positioning jaw 83 is coaxial with the first positioning jaw 41, and the jaws of the second positioning jaw 83 and the jaws of the first positioning jaw 41 are arranged at an angle to each other;

[0096] The valve seat transfer mechanism 8 cooperates with the first positioning jaw 41 to realize the installation of the left and right valve seats. First, the second telescopic rod 82 drives the second positioning jaw 83 to move horizontally to the inside of the valve body, and the first positioning jaw 83 contracts and extends into the valve seat fixed by the first positioning jaw 41. At this time, the second positioning jaw 83 extends outward to support the valve seat, and the first positioning jaw 41 contracts to transfer the valve seat from the first positioning jaw 41 to the second positioning jaw 83, and the second telescopic rod 82 retracts to press the valve seat on the second positioning jaw 83 to one side into the valve body, completing the installation of the valve seat and the valve body.

[0097] It should be noted that

[0098] The above-mentioned second positioning clamp 83 includes a second clamp seat installed at the end of the second telescopic rod 82, and a plurality of telescopic second supporting plates are evenly distributed along the circumference of the second clamp seat. A second limit block is provided on the end of the second supporting plate away from the second telescopic rod 82, and the valve seat is sleeved on the second supporting plate and limited by the second limit block; and the clamping jaws of the second positioning clamp 83 and the clamping jaws of the first positioning clamp 41 are arranged at an angle to each other, so as not to affect the interference between the two during the switching process of the valve seat, thereby improving the reliability and efficiency of the switching.

[0099] The valve seat fixture 4 and the valve seat adapter mechanism 8 form a three-rod linkage structure, which enables the installation of the left and right valve seats without replacing the fixture.

[0100] In one embodiment,

[0101] like Figure 8 As shown, the ball clamp 5 comprises a guide plate 51 vertically mounted at the end of the first telescopic rod 36, and a third positioning jaw 52 mounted on the side of the guide plate 51 away from the first telescopic rod 36, the third positioning jaw 52 is used to clamp the ball, and a second visual component 53 is mounted on the guide plate 52 at the center of the third positioning jaw 52;

[0102] The third positioning clamp 52 clamps the ball to the assembly table 11 through the second visual component 53. The second visual component 53 detects the installation position of the ball again and adjusts the position of the third positioning clamp 52 so that the ball is accurately installed in the valve body.

[0103] It should be noted that

[0104] The third positioning clamp 52 is configured as a double-headed clamp, which, with the assistance of the second visual component 53 , accurately clamps the top of the sphere and is driven to move by the clamp displacement mechanism 3 .

[0105] In one embodiment,

[0106] like Fig. 9 As shown, the valve stem clamp 6 comprises a fourth positioning jaw 61 vertically mounted at the end of the first telescopic rod 36, and a third visual component 62 mounted at the center of the fourth positioning jaw 61;

[0107] The fixture displacement mechanism 3 drives the fourth positioning jaw 61 to transport the valve stem to the assembly position of the ball, and the third visual component 62 is started again to identify the assembly position of the ball and adjust the position of the fourth positioning jaw 61 to ensure that the valve stem can be accurately installed on the ball;

[0108] It should be noted that

[0109] An upper and lower layer of clamping heads are installed in the fourth positioning clamping jaw 61, which has a strong clamping force. The valve stem is hollow, which does not affect the positioning function of the third visual component 62 when the valve stem enters the valve body.

[0110] In one embodiment,

[0111] like Figure 10-11 As shown, the valve cover clamp 7 comprises a fifth positioning jaw 71 vertically mounted at the end of the first telescopic rod 36, a guide rod 72 is mounted at the center of the fifth positioning jaw 71, and a fourth visual component 73 is mounted at the end of the guide rod 72;

[0112] The fourth visual component 73 is used to identify and assist the fifth positioning clamp 71 to clamp the valve cover, and the clamp displacement mechanism 3 drives the valve cover to be transported to the assembly position of the valve body. The fourth visual component 73 is installed on the guide rod 72 and extends into the center hole of the valve cover to align it with the installation position of the valve body.

[0113] It should be noted that

[0114] A clamping head is installed circumferentially inside the fifth positioning clamp 71, and a supporting platform is installed below the clamping head. Since the valve cover is heavy, the valve cover is placed on the supporting platform and clamped to prevent the valve cover from slipping during transportation and assembly, thereby ensuring the assembly effect.

[0115] In summary:

[0116] The invention discloses an automatic assembly device for ball valves, wherein the circulating conveying platform is designed to adopt multiple platforms to work in coordination, thereby realizing the circulating conveying of the valve body, and facilitating loading and unloading and assembly operations.

[0117] The clamp displacement mechanism designed in the present invention realizes the precise movement of each clamp in three-dimensional space through the lateral, longitudinal and axial displacement functions, adapts to complex assembly requirements, and can significantly improve assembly efficiency and accuracy;

[0118] Each assembly fixture of the present invention adopts visual coordination for positioning, clamping and assembly to complete the sequential assembly between the units of the ball valve, with high positioning and assembly accuracy, and corresponding positioning jaws are designed for each assembly unit to ensure the clamping force while ensuring the assembly effect;

[0119] The present invention designs a valve seat fixture and a valve seat transfer mechanism for the assembly of the valve seat, forming a three-rod linkage structure, so that the installation of the left and right valve seats can be realized without replacing the fixture, which is simple and efficient.

[0120] The present invention discloses an automatic assembly device specially designed for ball valves, which realizes efficient and precise automatic assembly of ball valves through the coordinated work of a circulating conveying platform, a fixture displacement mechanism and various assembly fixtures. The design fully considers the positioning accuracy, clamping stability and adaptability to multiple specifications during the assembly process, is particularly suitable for large-scale production environments, and can significantly improve production efficiency and product quality.

[0121] The above shows and describes the basic principles, main features and advantages of the present invention. The front, back, left and right used in the text are not specific, and are mainly used to more intuitively illustrate the technical solution, and do not play a limiting role. Technical personnel in this industry should understand that the above implementation methods are only for illustrating the technical concept and characteristics of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it, and cannot be used to limit the scope of protection of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An automatic assembly device for ball valves, characterized in that: It comprises a circulating conveying platform (1) for conveying the valve body; A support frame (2) in which the circulating conveying platform (1) is arranged, and a slideway is provided on the support frame (2) along the transport direction of the circulating conveying platform (1); A fixture displacement mechanism (3) is installed in the slideway and can move horizontally along the slideway. A plurality of fixture displacement mechanisms (3) are arranged and are used to install a valve seat fixture (4), a ball fixture (5), a valve stem fixture (6) and a valve cover fixture (7) respectively. A valve seat clamp (4) is used to clamp the valve seat and move it along the slideway to the position of the valve body, and to install the valve seat on the valve body; A ball clamp (5) is used to clamp the ball and move it along the slideway to the position of the valve seat, and install the ball at the center of the valve seat; A valve stem clamp (6) is used to clamp the valve stem and move it along the slideway to the position of the ball, and to install the valve stem on the ball; The valve cover clamp (7) is used to clamp the valve cover and move it along the slideway to the position of the valve body, and then install the valve cover on the valve body.

2. The automatic assembly device for ball valves according to claim 1, characterized in that: The circulating conveying platform (1) comprises a hollow assembly platform (11) and a circulating conveying mechanism installed in the assembly platform (11); The circulating conveying mechanism comprises a transfer platform (12), a first lifting platform (13) and a second lifting platform (14) installed on both sides of the transfer platform (12), the first lifting platform (13) and the second lifting platform (14) are arranged on both sides of an assembly platform (11), and a load conveying assembly (15) is installed on the transfer platform (12), the first lifting platform (13) and the second lifting platform (14).

3. The automatic assembly device for ball valves according to claim 2, characterized in that: The object conveying assembly (15) comprises a loading plate (151) slidably mounted on a transfer platform (12), a first lifting platform (13) or a second lifting platform (14); a second rack (152) is mounted on the transfer platform (12), the first lifting platform (13) or the second lifting platform (14); a second motor (153) is mounted on the loading plate (151); and a second gear is mounted on the output end of the second motor (153) and meshed with the second rack (152); A third rack that is docked with the second rack (152) is installed on the assembly platform (11).

4. The automatic assembly device for ball valves according to claim 1, characterized in that: The clamp displacement mechanism (3) comprises a displacement seat (31), a first motor (32) mounted on the displacement seat (31), a first gear mounted on the output end of the first motor (32), and a first rack (34) meshing with the first gear; The displacement seat (31) is slidably engaged in the slideway, and the first rack (34) is installed in the slideway; A driving component (35) is installed at the lower end of the displacement seat (31), a slider (33) is installed at the output end of the driving component (35), and a first telescopic rod (36) is vertically installed at the lower end of the slider (33). The slider (33) is driven by the driving component (35) to move laterally along the displacement seat (31).

5. The automatic assembly device for ball valves according to claim 4, characterized in that: The valve seat clamp (4) comprises a first positioning jaw (41) installed at the end of the first telescopic rod (36), the clamping surface of the first positioning jaw (41) faces one side, the valve seat is sleeved on the first positioning jaw (41), and a first visual component (42) is installed at the center of the first positioning jaw (41).

6. The automatic assembly device for ball valves according to claim 5, characterized in that: It also includes a valve seat transfer mechanism (8), which is installed on the assembly platform (11); It comprises a carrier frame (81) symmetrically mounted on both sides of an assembly platform (11), a second telescopic rod (82) horizontally mounted on the carrier frame (81), and a second positioning clamp (83) mounted on the telescopic end of the second telescopic rod (82), wherein the two second positioning clamps (83) are mounted opposite to each other; When the valve seat is installed, the second positioning clamping jaw (83) is coaxial with the first positioning clamping jaw (41), and the clamping jaws of the second positioning clamping jaw (83) and the clamping jaws of the first positioning clamping jaw (41) are arranged at an angle to each other.

7. The automatic assembly device for ball valves according to claim 4, characterized in that: The ball clamp (5) comprises a guide plate (51) vertically mounted at the end of the first telescopic rod (36), and a third positioning jaw (52) mounted on the side of the guide plate (51) away from the first telescopic rod (36), wherein the third positioning jaw (52) is used for clamping the ball, and a second visual component (53) is mounted on the guide plate (51) at the center of the third positioning jaw (52).

8. The automatic assembly device for ball valves according to claim 4, characterized in that: The valve stem clamp (6) comprises a fourth positioning jaw (61) vertically mounted at the end of the first telescopic rod (36), and a third visual component (62) mounted at the center of the fourth positioning jaw (61).

9. The automatic assembly device for ball valves according to claim 4, characterized in that: The valve cover clamp (7) comprises a fifth positioning jaw (71) vertically mounted at the end of the first telescopic rod (36), a guide rod (72) mounted at the center of the fifth positioning jaw (71), and a fourth visual component (73) mounted at the end of the guide rod (72).

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