Rotary assembly for assembling valve body pressure gauge

Abstract

The utility model discloses a rotary assembly for assembling a valve body pressure gauge. The rotary assembly is composed of a supporting frame, a lifting mechanism and a rotary assembly mechanism. The lifting mechanism comprises a driving motor, a lead screw transmission pair, a linear guide rail pair and the like, the height can be accurately adjusted, the rotary mounting mechanism is driven to be close to or away from the valve body, and it is ensured that operation is conducted at the proper height. The rotary mounting mechanism is provided with an up-down adjusting assembly, a screw-in assembly and a clamping assembly. The up-down adjusting assembly can accurately and finely adjust the height through an air cylinder, a sliding rail, a pushing and pressing wheel and the like. The screw-in assembly stably rotates through the driving motor, the connecting rotating shaft and the mounted bearing; the clamping assembly can stably clamp the pressure gauge by means of a clamping claw, an H-shaped connecting block, a tension spring and an auxiliary wheel. All the assemblies work cooperatively, automatic and high-precision valve body pressure gauge assembling is achieved, the assembling efficiency and quality are greatly improved, and the industrial production requirement is met.

Description

Technical Field

[0001] This utility model relates to the field of valve body assembly technology, specifically a screw-on assembly for assembling a valve body pressure gauge. Background Technology

[0002] In industrial production, the assembly quality of valve bodies and pressure gauges is crucial to the operational stability and safety of the entire system. Traditional manual assembly methods have many drawbacks. On the one hand, manual operation makes it difficult to ensure uniform force and accurate rotation angle for each screw-on, which can easily damage the pressure gauge threads or cause poor sealing, affecting product performance. On the other hand, manual assembly is inefficient and cannot meet the needs of large-scale industrial production. Summary of the Invention

[0003] (a) Technical problems to be solved

[0004] The technical problems to be solved by this utility model are: manual operation makes it difficult to ensure the uniformity of force and the accuracy of rotation angle for each screw-on, which can easily cause damage to the pressure gauge threads or poor sealing, affecting product performance; and manual assembly is inefficient and cannot meet the needs of large-scale industrial production.

[0005] (II) Technical Solution

[0006] To solve the above problems, this utility model provides the following technical solution:

[0007] (iii) A screw-on assembly for assembling a valve body pressure gauge is provided, comprising a support frame, a lifting mechanism disposed on the support frame, and a screw-on mechanism connected to the lifting mechanism.

[0008] The screw-on mechanism includes an up-and-down adjustment component, a screw-in component, and a clamping component. The up-and-down adjustment component is connected to the lifting mechanism and the screw-in component, and the clamping component is connected to the screw-in component.

[0009] The rotary assembly includes a drive motor, a connecting shaft, and a bearing with a mounting bracket. The upper end of the connecting shaft is connected to the shaft of the drive motor via a synchronous belt and a synchronous pulley, and the middle part of the connecting shaft is connected to the bearing with a mounting bracket.

[0010] The up-down adjustment assembly includes a cylinder, a slide rail mounting plate, a linear guide rail pair vertically mounted on the slide rail mounting plate, a slider mounting plate connected to the slider of the linear guide rail pair, a set of extension arms symmetrically arranged on both sides of the slider mounting plate, a roller and a push roller located at the end of the extension arm away from the slider mounting plate. The telescopic rod of the cylinder is inherently connected to the upper end face of the slider mounting plate. The push roller is sleeved on the connecting shaft and can move in the axial direction of the connecting shaft. The push roller has an inverted conical structure and an annular groove is provided on the upper part of the push roller. The roller is located in the annular groove, and its outer wall abuts against the upper and lower surfaces of the annular groove.

[0011] The clamping assembly includes two clamping grips, a shaped connecting block for connecting the two clamping grips, a tension spring, and an auxiliary wheel. The middle part of the shaped connecting block is connected to the lower end face of the connecting shaft, and the middle parts of the two clamping grips are connected to the shaped connecting block through a rotatable pin. Each clamping grip has an auxiliary wheel at its upper end through a rotatable pin, and the auxiliary wheel is configured to cooperate with the side of the lower part of the push wheel.

[0012] Furthermore, the lifting mechanism includes a second drive motor, a lead screw transmission pair, two sets of linear guide rail pairs symmetrically arranged on the inner walls of both sides of the support frame, a vertical connecting plate, an upper connecting plate, a lower connecting plate, and a pressure plate respectively connected to the upper sliders of the two sets of linear guide rail pairs. The pressure plate is disposed on the upper part of the upper connecting plate and is fixedly connected to the upper connecting plate through a connecting rod. The two sides of the upper connecting plate are respectively connected to the upper end faces of the two vertical connecting plates, and the two sides of the lower connecting plate are respectively connected to the lower end faces of the two vertical connecting plates. The rotating shaft of the second drive motor is connected to the lead screw of the lead screw transmission pair through a synchronous belt and a synchronous pulley. The lead screw nut seat of the lead screw transmission pair is connected to the pressure plate. The upper end of the lead screw on the lead screw transmission pair is connected to the support frame through a lead screw connecting seat, and the lower end is connected to the lower connecting plate through a lead screw connecting seat. The upper connecting plate is provided with a clearance hole for avoiding the lead screw on the lead screw transmission pair.

[0013] Furthermore, the upper end of the slide rail mounting plate is fixedly connected to the lower end face of the lower connecting plate.

[0014] Furthermore, the first drive cylinder is disposed on the upper end face of the lower connecting plate.

[0015] Furthermore, the seated bearing is connected to the lower connecting plate.

[0016] Furthermore, the slide rail mounting plate is also equipped with a distance measuring sensor.

[0017] Effect

[0018] The beneficial effects of this utility model are:

[0019] This invention achieves fully automated operation from valve body and pressure gauge alignment to screw-on assembly through the coordinated work of the lifting mechanism and the screw-on mechanism, greatly reducing manual intervention, improving production efficiency, and lowering labor costs.

[0020] The seated bearing in the screw-in assembly ensures smooth rotation of the connecting shaft, while the up-and-down adjustment assembly, combined with the distance sensor, enables precise height control. The clamping assembly stably holds the pressure gauge, effectively avoiding problems such as shaking and misalignment during the screw-in process, ensuring the accuracy and sealing of the pressure gauge installation, and improving product quality. Attached image description:

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 This is a schematic diagram of the lifting mechanism and the mounting mechanism of this utility model. Figure 1 ;

[0023] Figure 3 This is a schematic diagram of the lifting mechanism and the mounting mechanism of this utility model. Figure 2 ;

[0024] Figure 4 This is a schematic diagram of the lifting mechanism and the mounting mechanism of this utility model. Figure 3 .

[0025] The diagram shows the following components: 1-Support frame, 2-Lifting mechanism, 201-Drive motor II, 202-Screw drive pair, 203-Linear guide pair II, 204-Vertical connecting plate, 205-Upper connecting plate, 206-Lower connecting plate, 207-Pressure plate, 3-Spinning mechanism, 301-Up and down adjustment assembly, 301a-Cylinder I, 301b-Slide rail mounting plate, 301c-Linear guide pair I, 301d-Slider mounting plate, 301e-Extension arm, 301f-Roller, 301g-Push roller, 301h-Annular groove, 302-Spinning assembly, 302a-Drive motor I, 302b-Connecting shaft, 302c-Bearing with seat, 303-Clamping assembly, 303a-Clamping gripper, 303b-H-type connecting block, 303c-Tension spring, 303d-Auxiliary wheel. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Please see Figures 1-4 The diagram illustrates a screw-on assembly for assembling a valve body pressure gauge, comprising a support frame 1, a lifting mechanism 2 mounted on the support frame 1, and a screw-on mechanism 3 connected to the lifting mechanism 2. The screw-on mechanism 3 includes an up-and-down adjustment component 301, a screw-in component 302, and a clamping component 303. The up-and-down adjustment component 301 is connected to the lifting mechanism 2 and the screw-in component 302, and the clamping component 303 is connected to the screw-in component 302.

[0029] The up-down adjustment assembly 301 includes a cylinder 301a, a slide rail mounting plate 301b, a linear guide rail pair 301c vertically mounted on the slide rail mounting plate 301b, a slider mounting plate 301d connected to the slider of the linear guide rail pair 301c, a set of extension arms 301e symmetrically arranged on both sides of the slider mounting plate 301d, and a roller 301f and a pusher 301g located at the end of the extension arm 301e away from the slider mounting plate 301d.

[0030] The telescopic rod of cylinder 301a is inherently connected to the upper end face of the slider mounting plate 301d. By controlling the air intake of cylinder 301a, the telescopic rod's extension length is precisely adjusted, thereby driving the slider mounting plate 301d to move smoothly vertically along the linear guide pair 301c. The linear guide pair 301c provides high-precision guidance for the slider mounting plate 301d, ensuring the straightness of its movement path and reducing offset errors.

[0031] The push roller 301g is sleeved on the connecting shaft 302b and can move freely along the axis of the connecting shaft 302b. The push roller 301g has an inverted conical structure with an annular groove 301h on its upper part. The roller 301f is disposed in the annular groove 301h, and the outer wall of the roller 301f abuts tightly against the upper and lower surfaces of the annular groove 301h. When the slider mounting plate 301d moves up and down, the vertical movement is converted into precise fine-tuning of the push roller 301g along the axis of the connecting shaft 302b through the cooperation of the roller 301f and the annular groove 301h. This, in turn, drives the connected structure to achieve height adjustment to adapt to the assembly requirements of valve body pressure gauges of different height specifications.

[0032] The screw-in assembly 302 consists of a drive motor 302a, a connecting shaft 302b, and a bearing 302c. The upper end of the connecting shaft 302b is connected to the shaft of the drive motor 302a via a synchronous belt and pulley. The drive motor 302a, acting as a power source, rotates its shaft upon startup. Through the transmission of the synchronous belt and pulley, power is stably and efficiently transmitted to the connecting shaft 302b, providing it with continuous and uniform rotational power to meet the rotational requirements for screwing in the pressure gauge. The middle part of the connecting shaft 302b is connected to the bearing 302c, which provides stable support for the shaft, ensuring its stability during high-speed rotation, reducing radial runout and axial movement, effectively improving screw-in accuracy, and preventing damage to the pressure gauge threads or improper installation due to shaft wobbling.

[0033] The clamping assembly 303 includes two clamping grips 303a, an H-shaped connecting block 303b for connecting the two clamping grips 303a, a tension spring 303c, and an auxiliary wheel 303d.

[0034] The middle part of the H-shaped connecting block 303b is connected to the lower end face of the connecting shaft 302b, ensuring that the clamping assembly 303 can rotate synchronously with the connecting shaft 302b. The middle parts of the two clamping grips 303a are connected to the H-shaped connecting block 303b through a rotatable pin, allowing the clamping grips 303a to rotate flexibly around the pin.

[0035] Each clamping gripper 303a has an auxiliary wheel 303d at its upper end via a rotatable pin, and the auxiliary wheel 303d is configured to cooperate with the lower side of the pusher wheel 301g. In the initial state, the tension of the tension spring 303c keeps the two clamping grippers 303a in an open state, facilitating the placement of the pressure gauge in the clamping position. When the pusher wheel 301g moves downward, the lower side of the pusher wheel 301g presses against the auxiliary wheel 303d, which drives the clamping grippers 303a to rotate around the rotatable pin. The two clamping grippers 303a gradually close, achieving stable and reliable clamping of the pressure gauge, ensuring that the pressure gauge will not shift or shake during the screw-on process, and ensuring screw-on accuracy.

[0036] The lifting mechanism 2 includes a second drive motor 201, a lead screw transmission pair 202, two sets of linear guide rail pairs 203 symmetrically arranged on the inner walls of both sides of the support frame 1, a vertical connecting plate 204, an upper connecting plate 205, a lower connecting plate 206 and a pressure plate 207 respectively connected to the upper sliders of the two sets of linear guide rail pairs 203.

[0037] The pressure plate 207 is positioned on top of the upper connecting plate 205 and is fixedly connected to it via a connecting rod, forming an integral structure to enhance stability. The two sides of the upper connecting plate 205 are connected to the upper surfaces of the two vertical connecting plates 204, and the two sides of the lower connecting plate 206 are connected to the lower surfaces of the two vertical connecting plates 204. The vertical connecting plates 204 connect the upper connecting plate 205 and the lower connecting plate 206 into a rigid frame structure, ensuring stability during lifting. The drive motor 302a is connected to the lower connecting plate.

[0038] The shaft of drive motor 201 is connected to the lead screw of lead screw transmission pair 202 via a synchronous belt and synchronous pulley. After drive motor 201 starts, it drives the lead screw of lead screw transmission pair 202 to rotate. The lead screw nut seat of lead screw transmission pair 202 is connected to pressure plate 207. As the lead screw rotates, the lead screw nut seat drives pressure plate 207 to move up and down along the lead screw axis. At the same time, linear guide pair 203 provides precise guidance for vertical connecting plate 204 and its connected structure, ensuring the vertical movement accuracy of the entire lifting mechanism 2, enabling it to accurately deliver the mounting mechanism 3 to the appropriate working height to adapt to the assembly requirements of valve bodies of different heights.

[0039] The upper end of the lead screw on the lead screw drive pair 202 is connected to the support frame 1 via a lead screw connecting seat, and the lower end is connected to the lower connecting plate 206 via a lead screw connecting seat, ensuring the stability of the lead screw during rotation. The upper connecting plate 205 is provided with a clearance hole to avoid interference with the lead screw on the lead screw drive pair 202 during lifting and lowering.

[0040] The upper end of the slide rail mounting plate 301b is fixedly connected to the lower end face of the lower connecting plate 206, ensuring that the upper and lower adjustment components 301 can rise and fall synchronously with the lifting mechanism 2. The two work together to achieve precise adjustment of the rotation position.

[0041] The drive cylinder 301a is located on the upper surface of the lower connecting plate 206, making reasonable use of space and facilitating the installation, maintenance, and pipeline layout of the cylinder 301a.

[0042] The mounted bearing 302c is connected to the lower connecting plate 206, providing a stable mounting base for the screw-in assembly 302, ensuring the stability of the connecting shaft 302b during rotation, and further improving the screw-in accuracy.

[0043] The slide rail mounting plate 301b is also equipped with a distance sensor, which can monitor the position information of the slider mounting plate 301d in real time and feed the data back to the control system. The control system precisely controls the action of the cylinder 301a according to the preset parameters, further improving the adjustment accuracy of the up and down adjustment component 301 and ensuring high-precision operation of the entire mounting process.

[0044] Working principle:

[0045] After receiving the start command from the control system, the drive motor 201 immediately begins to rotate. Power is transmitted to one end of the lead screw of the lead screw drive pair 202 via the transmission link of the synchronous belt and synchronous pulley.

[0046] The lead screw rotates continuously under the stable power supply of the drive motor 201. Based on the basic principle of lead screw transmission, the lead screw nut seat, which is rigidly connected to it, is fixedly connected to the pressure plate 207 through a connecting rod, thereby driving the pressure plate 207 to perform vertical displacement along the axis of the lead screw. The pressure plate 207, the upper connecting plate 205, the lower connecting plate 206, and the vertical connecting plates 204 symmetrically distributed on both sides are integrated into a rigid structure. Under the guidance and constraint of the two sets of linear guide rail pairs 203 installed on the inner walls of both sides of the support frame 1, the entire lifting mechanism 2 is ensured to descend or rise smoothly in strict accordance with the predetermined vertical trajectory.

[0047] After the lifting mechanism 2 escorts the mounting mechanism 3 to a height close to the target, cylinder 301a starts sequentially according to the precise instructions or preset program of the control system. The end of the telescopic rod of cylinder 301a is firmly fixed to the upper surface of the slider mounting plate 301d. With the extension and retraction of the telescopic rod, the slider mounting plate 301d is pushed to slide up and down along the linear guide rail pair 301c, which is precisely mounted vertically on the slide rail mounting plate 301b. The upper end of the slide rail mounting plate 301b is firmly welded to the lower surface of the lower connecting plate 206 to ensure that the two are relatively stationary.

[0048] The symmetrically arranged extension arms 301e on both sides of the slider mounting plate 301d will move together with it. The carefully designed rollers 301f at the ends of the extension arms 301e will roll flexibly inside the annular groove 301h of the push roller 301g. The push roller 301g is sleeved on the connecting shaft 302b and can move along the axis of the connecting shaft 302b. Under the cooperative constraint of the rollers 301f, the inverted conical structure accurately converts the vertical movement of the slider mounting plate 301d into a fine adjustment of itself along the axis of the connecting shaft 302b. This drives the connecting shaft 302b and the connected screwing assembly 302 and clamping assembly 303 to achieve a fine adjustment effect in height, ensuring that the clamping assembly 303 can be accurately aligned with the pressure gauge. At the same time, the distance sensor installed on the slide rail mounting plate 301b tracks the real-time position of the slider mounting plate 301d and immediately feeds the accurate data back to the control system. The control system continuously optimizes the operation of the cylinder 301a based on the feedback information.

[0049] The lower side of the push roller 301g fits tightly against the auxiliary roller 303d carefully assembled on the upper end of each clamping gripper 303a in the clamping assembly 303. Due to the lateral squeezing force generated by the downward movement of the push roller 301g, the auxiliary roller 303d causes the clamping gripper 303a to rotate around the rotatable pin shaft connected to the H-shaped connecting block 303b.

[0050] Under the initial tension of the tension spring 303c, the clamping grippers 303a are initially in an open position. However, with the compression of the push roller 301g, the two clamping grippers 303a gradually overcome the tension of the tension spring 303c and tend to close, until the pressure gauge is firmly and stably clamped. The middle part of the H-shaped connecting block 303b is fixed to the lower end face of the connecting shaft 302b by welding or high-strength bolts, ensuring that the entire clamping assembly 303 can seamlessly follow the subsequent rotation of the connecting shaft 302b, and that the clamping force of the clamping grippers 303a on the pressure gauge is uniform and stable.

[0051] Once the pressure gauge is securely fixed by the clamping assembly 303, the drive motor 302a receives the start command, and its shaft begins to rotate rapidly. Thanks to the efficient transmission architecture built with the synchronous belt and pulley, the connecting shaft 302b is driven to rotate at high speed and smoothly.

[0052] Driven by the connecting shaft 302b, the clamping assembly 303, together with the clamped pressure gauge, rotates at a constant speed around the axis of the connecting shaft 302b, and the threaded end of the pressure gauge is gradually screwed into the corresponding threaded interface of the valve body.

[0053] The embodiments are detailed, and the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the present invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0054] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A spin-on assembly for valve body pressure gauge installation, characterized by: It includes a support frame (1), a lifting mechanism (2) disposed on the support frame (1), and a screw-on mechanism (3) connected to the lifting mechanism (2); The screw-on mechanism (3) includes an up-and-down adjustment component (301), a screw-in component (302), and a clamping component (303). The up-and-down adjustment component (301) is connected to the lifting mechanism (2) and the screw-in component (302), and the clamping component (303) is connected to the screw-in component (302). The rotary assembly (302) includes a drive motor (302a), a connecting shaft (302b), and a bearing (302c). The upper end of the connecting shaft (302b) is connected to the shaft of the drive motor (302a) via a synchronous belt and a synchronous pulley, and the middle part of the connecting shaft (302b) is connected to the bearing (302c). The up-and-down adjustment assembly (301) includes a cylinder (301a), a slide rail mounting plate (301b), a linear guide pair (301c) vertically mounted on the slide rail mounting plate (301b), a slider mounting plate (301d) connected to the slider of the linear guide pair (301c), a set of extension arms (301e) symmetrically arranged on both sides of the slider mounting plate (301d), and a roller (301f) and a push roller (301g) located at the end of the extension arm (301e) away from the slider mounting plate (301d). The telescopic rod of cylinder 1 (301a) is inherently connected to the upper end face of the slider mounting plate (301d). The push roller (301g) is sleeved on the connecting shaft (302b) and can move in the axial direction of the connecting shaft (302b). The push roller (301g) has an inverted conical structure and an annular groove (301h) is provided on the upper part of the push roller (301g). The roller (301f) is disposed in the annular groove (301h) and its outer wall abuts against the upper and lower surfaces of the annular groove (301h). The clamping assembly (303) includes two clamping grips (303a), an H-shaped connecting block (303b) for connecting the two clamping grips (303a), a tension spring (303c), and an auxiliary wheel (303d). The middle part of the H-shaped connecting block (303b) is connected to the lower end face of the connecting shaft (302b), and the middle parts of the two clamping grips (303a) are connected to the H-shaped connecting block (303b) through a rotatable pin. Each clamping grip (303a) has an auxiliary wheel (303d) at its upper end through a rotatable pin, and the auxiliary wheel (303d) is configured to cooperate with the side of the lower part of the pusher wheel (301g).

2. A screw-on assembly for valve body pressure gauge installation according to claim 1, characterized in that: The lifting mechanism (2) includes a second drive motor (201), a lead screw transmission pair (202), two sets of linear guide rail pairs (203) symmetrically arranged on the inner walls of both sides of the support frame (1), vertical connecting plates (204) respectively connected to the upper sliders of the two sets of linear guide rail pairs (203), an upper connecting plate (205), a lower connecting plate (206), and a pressure plate (207). The pressure plate (207) is located on the upper part of the upper connecting plate (205) and is fixedly connected to the upper connecting plate (205) through a connecting rod. The two sides of the upper connecting plate (205) are respectively connected to the upper end faces of the two vertical connecting plates (204). The two sides of the lower connecting plate (206) are respectively connected to the lower end faces of the two vertical connecting plates (204), and the shaft of the second drive motor (201) is connected to the lead screw of the lead screw transmission pair (202) through the connection of the synchronous belt and the synchronous pulley. The lead screw nut seat of the lead screw transmission pair (202) is connected to the pressure plate (207), and the upper end of the lead screw on the lead screw transmission pair (202) is connected to the support frame (1) through the lead screw connecting seat, and the lower end is connected to the lower connecting plate (206) through the lead screw connecting seat. The upper connecting plate (205) is provided with a clearance hole for avoiding the lead screw on the lead screw transmission pair (202).

3. A spin-on assembly for valve body pressure gauge installation as defined in claim 2, wherein: The upper end of the slide rail mounting plate (301b) is fixedly connected to the lower end face of the lower connecting plate (206).

4. A pressure gauge assembly for a valve body as defined in claim 2, wherein: The cylinder (301a) is located on the upper end face of the lower connecting plate (206).

5. A pressure gauge assembly for a valve body as defined in claim 2, wherein: The mounted bearing (302c) is connected to the lower connecting plate (206).

6. A pressure gauge assembly for a valve body as defined in claim 3, wherein: The slide rail mounting plate (301b) is also equipped with a distance measuring sensor.

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