A valve nut tightening device

Abstract

The utility model belongs to valve machining technical field relates to a valve cap screwing device, including base, the upper end surface of base is equipped with the mounting groove, the middle position is equipped with the batch head in the mounting groove, the batch head is driven through the servo motor of being equipped with the lower end surface of base, the batch head is connected with the float lock detection mechanism. The batch head is driven by servo motor and is screwed into the valve body, avoids the drawbacks of manual assembly in the prior art, greatly improves work efficiency, the float lock detection mechanism can detect whether the cap is float lock, thereby ensuring product quality.

Description

Technical Field

[0001] This utility model relates to the field of valve processing technology, and in particular to a valve nut tightening device. Background Technology

[0002] To facilitate valve assembly, an opening is often provided on the side of the valve body. Some valve components are fed into the valve body through the opening for assembly, and the opening is sealed with a nut after the valve is assembled. In the prior art, valve nuts are mostly installed manually. Manually tightening nuts is labor-intensive and inefficient. Furthermore, manual tightening can easily lead to nut lock-in, resulting in product defects. Therefore, this utility model proposes a valve nut tightening device. Utility Model Content

[0003] The main objective of this invention is to provide a valve nut tightening device to solve the problems of low efficiency and float lock caused by manual tightening of valve nuts as mentioned in the background art.

[0004] This utility model achieves the above-mentioned objective through the following technical solution: a valve nut tightening device, including a base, an installation groove on the upper end surface of the base, a bit in the middle of the installation groove, the bit being driven by a servo motor located on the lower end surface of the base, and the bit being connected to a floating lock detection mechanism.

[0005] Preferably, the base has an inner cavity, in which multiple guide rods are vertically arranged. A movable plate is connected to the guide rod, and a vertical rod is rotatably connected to the movable plate via a bearing. The top end of the vertical rod extends into the mounting groove. The bit is located at the top end of the vertical rod. The shaft of the servo motor passes through the inner cavity and is connected to a sleeve. The circumferential surface of the vertical rod is provided with a spline, and the inner wall of the sleeve is provided with a keyway. The bottom end of the vertical rod is movably connected to the sleeve, and a spring is provided at the bottom of the sleeve.

[0006] Preferably, the top end of the vertical rod is coaxially provided with a connecting section, the diameter of the connecting section is smaller than the diameter of the vertical rod, the bottom of the mounting groove is provided with an opening for the connecting section to extend into, and the bit is located at the top end of the connecting section.

[0007] Preferably, the floating lock detection mechanism includes a touch sensor switch disposed on the top surface of the inner cavity and a sensor block disposed on the movable plate facing the touch sensor switch. The touch sensor switch is used to control an indicator light disposed on the surface of the base.

[0008] The beneficial effects of this utility model are: by using a servo motor to drive the screwdriver bit to screw the nut into the valve body, the drawbacks of manual assembly in the prior art are avoided, greatly improving work efficiency. The floating lock detection mechanism can detect whether the nut is floating, thereby ensuring product quality. Attached Figure Description

[0009] Figure 1 This is a diagram showing the arrangement of the valve nut tightening device during operation, as illustrated in the example.

[0010] Figure 2 This is a schematic diagram of the connecting block structure.

[0011] The numbers in the image represent:

[0012] 1. Base; 2. Mounting slot; 3. Bit; 4. Servo motor; 5. Inner cavity; 6. Guide rod; 7. Movable plate; 8. Vertical rod; 9. Sleeve; 10. Spring; 11. Connecting section; 12. Inductive switch; 13. Inductive block. Detailed Implementation

[0013] The present invention will be further described in detail below with reference to specific embodiments.

[0014] Example:

[0015] like Figure 1 and Figure 2 As shown, a valve nut tightening device of the present invention includes a base 1, an installation groove 2 on the upper end surface of the base 1, a bit 3 in the middle position of the installation groove 2, the bit 3 being driven by a servo motor 4 located on the lower end surface of the base 1, and the bit 3 being connected to a floating lock detection mechanism.

[0016] The base 1 has an inner cavity 5, and multiple guide rods 6 are vertically arranged in the inner cavity 5. A movable plate 7 is connected to the guide rod 6. A vertical rod 8 is rotatably connected to the movable plate 7 via a bearing. The top end of the vertical rod 8 extends into the mounting groove 2. The bit 3 is located at the top end of the vertical rod 8. The shaft of the servo motor 4 passes through the inner cavity 5 and is connected to a sleeve 9. The circumferential surface of the vertical rod 8 is provided with a spline. The inner wall of the sleeve 9 is provided with a keyway. The bottom end of the vertical rod 8 is movably connected to the sleeve 9. A spring 10 is provided at the bottom of the sleeve 9.

[0017] The top end of the vertical rod 8 is coaxially provided with a connecting section 11. The diameter of the connecting section 11 is smaller than the diameter of the vertical rod 8. The bottom of the mounting groove 2 is provided with an opening for the connecting section 11 to extend into. The bit 3 is located at the top end of the connecting section 11.

[0018] The floating lock detection mechanism includes a touch sensor switch 12 disposed on the top surface of the inner cavity 5 and a sensor block 13 disposed on the movable plate 7 facing the touch sensor switch 12. The touch sensor switch 12 is used to control the indicator light disposed on the surface of the base 1.

[0019] In the initial state, the sensing block 13 is in contact with the sensing switch 12, and the indicator light illuminates. The end of the valve requiring tightening of the nut, along with the nut itself, is inserted into the mounting groove 2. The bit 3 is inserted into the pre-set bit 3 groove on the nut. The valve is pressed down, and the vertical rod 8 drives the movable plate 7 downwards. The sensing block 13 separates from the sensing switch 12, and the indicator light goes out. The servo motor drives the vertical rod 8 to rotate, screwing the nut into the valve. As the nut is screwed in, the vertical rod 8 drives the movable plate 7 upwards. When the nut is fully rotated, the sensing block 13 contacts the sensing switch 12, and the indicator light illuminates, indicating that the nut is not floating. When the nut is floating, the sensing block 13 cannot disengage from the sensing switch 12, and the indicator light does not illuminate.

[0020] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A valve nut tightening device, characterized by: The device includes a base, the upper surface of which has a mounting groove, and a bit is located in the middle of the mounting groove. The bit is driven by a servo motor located on the lower surface of the base, and the bit is connected to a floating lock detection mechanism.

2. A valve nut tightening device according to claim 1, wherein: The base has an inner cavity, within which multiple guide rods are vertically arranged. A movable plate is connected to each guide rod, and a vertical rod is rotatably connected to the movable plate via a bearing. The top end of the vertical rod extends into the mounting groove. The bit is located at the top end of the vertical rod. The shaft of the servo motor passes through the inner cavity and is connected to a sleeve. The circumferential surface of the vertical rod has a spline, and the inner wall of the sleeve has a keyway. The bottom end of the vertical rod is movably connected to the sleeve, and a spring is located at the bottom of the sleeve.

3. The valve nut tightening device according to claim 2, characterized in that: The top end of the vertical rod is coaxially provided with a connecting section, the diameter of which is smaller than the diameter of the vertical rod. The bottom of the mounting groove is provided with an opening for the connecting section to extend into, and the bit is located at the top end of the connecting section.

4. A valve nut tightening device according to claim 2, characterized in that: The floating lock detection mechanism includes a touch sensor switch located on the top surface of the inner cavity and a sensor block located on the movable plate facing the touch sensor switch. The touch sensor switch is used to control an indicator light located on the surface of the base.

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