Valve handle assembling machine

Abstract

The utility model discloses a valve handle assembling machine, which belongs to the technical field of valves and comprises a base and a valve, an annular slide rail is arranged at an opening right above the base, an L-shaped support extends behind the base, a fixing component capable of limiting the valve is arranged on the annular slide rail, and the valve is arranged on the L-shaped support. A locking mechanism capable of locking a valve handle nut of the valve is arranged below the L-shaped support, and the fixing assembly comprises an electric sliding seat, a positioning protrusion, a positioning die, a positioning recess, a guide rail, a supporting rod and a positioning rod. The valve is firstly placed in the positioning mold, the positioning mold conducts primary limiting on the valve, then the positioning rod is pushed to move, the positioning rod is correspondingly inserted into a flange hole in the valve, then secondary limiting is conducted, and meanwhile by means of the connection relation of the positioning concave part and the positioning convex part, when the device is used, the valve can be accurately positioned. And different positioning molds can be replaced according to different requirements, so that the whole device is wider in application range and more flexible to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, in particular to a valve handle assembly machine. Background Art

[0002] Ball valves are common valves in daily life. The working principle of ball valves is to control and switch the fluid by rotating the ball. When the ball valve needs to be opened, the operator will rotate the ball about 90 degrees to align the channel of the ball with the inner diameter of the pipe, thereby allowing the fluid to pass through. This design makes the resistance of the fluid through the valve very small and almost unrestricted. When the ball valve needs to be closed, the ball is rotated about 90 degrees again to offset all or part of the spherical surface from the inner diameter of the pipe, thereby cutting off the flow. It has a high service life and reliability.

[0003] During the assembly of the valve, first connect the valve core and the valve stem, and then connect the valve handle and the valve stem. There is an anti-fool structure between the valve stem and the valve handle to ensure the stability of the valve handle when it is rotated and stressed. Finally, fix the nut on the top of the valve stem to prevent the valve handle from falling out.

[0004] The most common problem is that during the assembly process of the valve stem nut, it is difficult to control the torque of the nut manually, which can easily cause the nut to be over-tightened or under-tightened. Although a torque wrench can be used, the efficiency is still relatively low. Therefore, a new mechanism needs to be designed to improve the tightening efficiency. At the same time, when operating on the valve body, the existing clamping tooling is universal, which sometimes leads to insufficient clamping. Therefore, separate operations are required according to different valve body models to improve work efficiency and stability. Utility Model Content

[0005] The purpose of the utility model is to provide a valve handle assembly machine in order to solve the above-mentioned problem.

[0006] The technical solution adopted by the utility model is as follows: a valve handle assembly machine, comprising a base and a valve, an annular slide rail is provided at an opening just above the base, an L-shaped bracket extends behind the base, a fixing component capable of limiting the position of the valve is provided on the annular slide rail, and a locking mechanism capable of locking a nut of the valve handle is provided below the L-shaped bracket;

[0007] The fixing assembly includes an electric slide, a positioning protrusion, a positioning mold, a positioning recess, a guide rail, a support rod, and a positioning rod;

[0008] The annular slide rail is movably connected with an electric slide seat, a positioning protrusion is integrally provided above the electric slide seat, a positioning mold is installed above the electric slide seat, and a positioning recess is integrally provided at the bottom of the positioning mold;

[0009] Guide rails are embedded on both sides of the positioning mold, support rods are movably connected above the guide rails, and positioning rods are fixedly installed inside the support rods;

[0010] The locking mechanism includes a screw guide rail, a slider, a linkage rod, an electric torque wrench, an output shaft, a buffer slide groove, a sleeve head, a buffer slide block and a spring;

[0011] A screw guide rail is fixedly installed at the bottom of the L-shaped bracket, a slider is matched with the screw guide rail, a linkage rod is rotatably connected below the slider, and an electric torque wrench is rotatably connected to the other side of the linkage rod;

[0012] The electric torque wrench is equipped with an output shaft, a buffer slide groove is integrated at the end of the output shaft, a sleeve head is movably connected inside the output shaft, a buffer slider is integrated at one end of the sleeve head, and a spring is connected between the buffer slider and the buffer slide groove.

[0013] There are two sliders and two linkage rods, which are symmetrically arranged, and the ends of the linkage rods are rotationally connected to the electric torque wrench. The screw thread on the screw guide rail is divided into two parts in the middle, which are reverse threads to each other.

[0014] Wherein, the positioning concave and the positioning convex are arranged in a fitting manner.

[0015] Wherein, the buffer sliding groove and the buffer sliding block are fitted and slidably connected.

[0016] There are at least two groups of fixing components which are evenly distributed. The positioning mold can just limit the position of the valve. The positioning rod is arranged corresponding to the flange hole on the valve.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0018] 1. In the utility model, the valve is first placed in the positioning mold, the positioning mold performs the first limit on the valve, and then the positioning rod is pushed to move and inserted into the flange hole on the valve, thereby performing the second limit. At the same time, the connection relationship between the positioning concave and the positioning convex is utilized, so that when the device is in use, different positioning molds can be replaced according to different needs, thereby making the entire device more adaptable and more flexible to use.

[0019] 2. In the utility model, the two sliders can be moved in the same or opposite directions by utilizing the screw threads arranged in opposite directions. At this time, the linkage rod is driven to link the electric torque wrench to perform vertical lifting and lowering to lock the valve handle nut. The electric torque wrench can ensure the accuracy of the torque, and the process of locking the nut is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the structure of the utility model;

[0023] Figure 4 It is a schematic diagram of the structure of the utility model;

[0024] Markings in the figure: 1. Base; 101. Annular slide rail; 102. L-shaped bracket; 2. Electric slide seat; 201. Positioning convex; 3. Positioning mold; 301. Positioning concave; 302. Guide rail; 303. Support rod; 304. Positioning rod; 4. Valve; 5. Screw slide rail; 501. Slider; 502. Linkage rod; 6. Electric torque wrench; 601. Output shaft; 602. Buffer slide groove; 7. Socket head; 701. Buffer slider; 702. Spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the utility model:

[0027] Reference Figure 1-4 A valve handle assembly machine includes a base 1 and a valve 4. An annular slide rail 101 is provided at an opening directly above the base 1. An L-shaped bracket 102 extends behind the base 1. A fixing component capable of limiting the position of the valve 4 is provided on the annular slide rail 101. A locking mechanism capable of locking a nut of a valve handle of the valve 4 is provided below the L-shaped bracket 102.

[0028] The fixing assembly includes an electric slide 2, a positioning protrusion 201, a positioning mold 3, a positioning recess 301, a guide rail 302, a support rod 303, and a positioning rod 304;

[0029] An electric slide 2 is movably connected to the annular slide rail 101, and the electric slide 2 can move on the annular slide rail 101. A positioning protrusion 201 is integrally arranged directly above the electric slide 2. A positioning mold 3 is installed above the electric slide 2, and a positioning recess 301 is integrally arranged at the bottom of the positioning mold 3. The positioning recess 301 and the positioning protrusion 201 are matched with each other. By utilizing the connection relationship between the positioning recess 301 and the positioning protrusion, different positioning molds 3 can be replaced according to different needs when the device is in use, thereby making the entire device more adaptable and more flexible to use.

[0030] Guide rails 302 are embedded on both sides of the positioning mold 3, support rods 303 are movably connected above the guide rails 302, and positioning rods 304 are fixedly installed inside the support rods 303;

[0031] The locking mechanism includes a screw guide rail 5, a slider 501, a linkage rod 502, an electric torque wrench 6, an output shaft 601, a buffer slide 602, a sleeve head 7, a buffer slider 701 and a spring 702;

[0032] A screw guide rail 5 is fixedly installed at the bottom of the L-shaped bracket 102. The screw thread on the screw guide rail 5 is divided into two parts in the middle, which are reverse threads to each other. A slider 501 is provided on the screw guide rail 5. A linkage rod 502 is rotatably connected to the bottom of the slider 501, and an electric torque wrench 6 is rotatably connected to the other side of the linkage rod 502. There are two sliders 501 and linkage rods 502, which are symmetrically arranged, and both ends of the linkage rods 502 are rotatably connected to the electric torque wrench 6. By utilizing the reversely arranged screw threads, when the screw is rotating, the two sliders 501 can be moved in the same or reverse direction, which drives the linkage rod 502 to tilt, thereby linking the electric torque wrench 6 to perform vertical lifting and lowering, and then the electric torque wrench 6 is used to tighten the valve handle nut.

[0033] The electric torque wrench 6 is equipped with an output shaft 601, and a buffer groove 602 is integrated at the end of the output shaft 601. A sleeve head 7 is movably connected inside the output shaft 601, and a buffer slider 701 is integrated at one end of the sleeve head 7. A spring 702 is connected between the buffer slider 701 and the buffer groove 602. The groove 602 and the buffer slider 701 are fitted and slidably connected. When the electric torque wrench 6 descends, the sleeve head 7 and the valve handle nut are generally hexagonal in shape, and they cannot fit accurately every time. At this time, when they cannot fit, the sleeve head 7 is pressured and retracted into the output shaft 601. When the output shaft 601 rotates, the sleeve head 7 is pressured by the spring and aligned with the valve handle nut. At this time, the sleeve head 7 descends and bites with the valve handle nut, and the electric torque wrench 6 tightens the valve handle nut.

[0034] Furthermore, there are at least two groups of fixing components, which are evenly distributed, and multiple groups of valve handles can be installed at the same time. The positioning mold 3 can just limit the valve 4. The positioning rod 304 is set corresponding to the flange hole on the valve 4. When the valve handle on the valve 4 needs to be installed, the valve 4 is first placed in the positioning mold 3. The positioning mold 3 performs the first limit on the valve 4, and then the positioning rod 304 is pushed to move and inserted into the corresponding flange hole on the valve 4, and then the second limit is performed.

[0035] Furthermore, the electric torque wrench 6 and the motor provided inside the electric slide 2 are electrically connected to the external power supply through the control panel.

[0036] Working principle: First, place the valve 4 in the positioning mold 3, and the positioning mold 3 performs the first limit on the valve 4, then push the positioning rod 304 to move, and insert it into the flange hole on the valve 4, and then perform the second limit. At this time, the staff will insert the anti-stuck mouth between the valve handle and the valve stem, and then use the thread to bring the valve handle nut into the top of the valve stem. Then, using the reversely set screw thread, when the screw is rotating, the two sliders 501 can move in the same or opposite direction, at this time, the linkage rod 502 is driven to tilt, and then the electric torque wrench 6 is linked to perform vertical lifting. When the electric torque wrench 6 descends, the two sliders 501 can move in the same or opposite direction. When the sleeve head 7 and the valve stem nut are generally hexagonal in shape, they cannot fit accurately every time. When they cannot fit, the sleeve head 7 is retracted into the output shaft 601 by pressure. When the output shaft 601 rotates, the sleeve head 7 is subjected to the pressure of the spring and is aligned with the valve stem nut. At this time, the sleeve head 7 drops and engages with the valve stem nut, and the electric torque wrench 6 tightens the valve stem nut. Finally, by utilizing the connection relationship between the positioning recess 301 and the positioning projection, different positioning molds 3 can be replaced according to different needs when the device is in use, thereby making the entire device more adaptable and more flexible to use.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A valve handle assembly machine, comprising a base (1) and a valve (4), characterized in that: An annular slide rail (101) is provided at the opening directly above the base (1), an L-shaped bracket (102) extends behind the base (1), a fixing component capable of limiting the position of the valve (4) is provided on the annular slide rail (101), and a locking mechanism capable of locking a valve handle nut of the valve (4) is provided below the L-shaped bracket (102); The fixing assembly comprises an electric slide seat (2), a positioning protrusion (201), a positioning mold (3), a positioning recess (301), a guide rail (302), a support rod (303), and a positioning rod (304); The annular slide rail (101) is movably connected to an electric slide seat (2), a positioning protrusion (201) is integrally provided just above the electric slide seat (2), a positioning mold (3) is installed above the electric slide seat (2), and a positioning recess (301) is integrally provided at the bottom of the positioning mold (3); Guide rails (302) are embedded on both sides of the positioning mold (3), a support rod (303) is movably connected above the guide rail (302), and a positioning rod (304) is fixedly installed inside the support rod (303).

2. A valve handle assembly machine according to claim 1, characterized in that: The locking mechanism comprises a screw guide rail (5), a slider (501), a linkage rod (502), an electric torque wrench (6), an output shaft (601), a buffer slide groove (602), a sleeve head (7), a buffer slide block (701) and a spring (702); A screw guide rail (5) is fixedly mounted at the bottom of the L-shaped bracket (102), a slider (501) is matched with the screw guide rail (5), a linkage rod (502) is rotatably connected below the slider (501), and an electric torque wrench (6) is rotatably connected to the other side of the linkage rod (502); The electric torque wrench (6) is equipped with an output shaft (601), the end of the output shaft (601) is integrally provided with a buffer slide groove (602), the output shaft (601) is movably connected with a sleeve head (7) inside, one end of the sleeve head (7) is integrally provided with a buffer slider (701), and a spring (702) is connected between the buffer slider (701) and the buffer slide groove (602).

3. A valve handle assembly machine as claimed in claim 2, characterized in that: The number of the sliders (501) and the linkage rods (502) is two, which are symmetrically arranged, and the ends of the linkage rods (502) are both rotatably connected to the electric torque wrench (6).

4. A valve handle assembly machine as claimed in claim 2, characterized in that: The screw thread on the screw guide rail (5) is divided into two parts in the middle, which are opposite threads to each other.

5. The valve handle assembly machine according to claim 1, characterized in that: The positioning concave (301) and the positioning convex (201) are arranged in a fitting manner.

6. A valve handle assembly machine as claimed in claim 2, characterized in that: The buffer sliding groove (602) and the buffer sliding block (701) are fitted and slidably connected.

7. The valve handle assembly machine according to claim 1, characterized in that: The fixing components are at least two groups, which are evenly distributed, and the positioning mold (3) can just limit the position of the valve (4).

8. The valve handle assembly machine according to claim 1, characterized in that: The positioning rod (304) is arranged corresponding to the flange hole on the valve (4).

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