Pipe end nut assembly device

Abstract

The application discloses a pipe end nut assembling device, which comprises a rack, a nut press-fitting die, a nut press-fitting driving mechanism and a nut supply device arranged on the rack. The structure of the nut supply device comprises a vibrating disc, a pushing channel, a slide, pneumatic fingers and a finger driving mechanism. Two clamping blocks are respectively fixed on two clamping jaws of the pneumatic fingers. Each clamping block is provided with a clamping groove. The two clamping grooves are located opposite to the outlet of the pushing channel and can receive the nut pushed out of the pushing channel. The outlet of the vibrating disc is connected with the inlet of the slide. A falling opening is arranged on the top of the pushing channel. The outlet of the slide is connected with the falling opening. A pushing rod and a pushing driving mechanism are arranged on the pushing channel, and the pushing rod is arranged in the pushing channel. The pipe end nut assembling device can realize automatic nut supply, quickly and accurately press-fits the nut on the end of the pipe and processes the necking of the pipe, thereby greatly improving the processing efficiency and reducing the labor cost.

Description

Pipe end nut assembly device Technical Field

[0001] This invention relates to the field of pipe processing equipment, and more specifically to a pipe end nut assembly device. Background Technology

[0002] There is a type of functional pipe where both ends require sequential nut press-fitting and end-reduction processing. Nut press-fitting refers to the process of pressing the nut coaxially with the pipe end into the pipe end. End-reduction processing refers to the process of reducing the size of the pipe end, after which the nut pressed into the pipe end cannot be removed. Currently, in the production of functional pipes, workers typically place the nuts into a press-fitting machine, then place the pipe into the press-fitting machine for nut press-fitting, and then place the pipe into an end-reduction machine for end-reduction processing. This method of nut assembly at the pipe ends of functional pipes has the disadvantages of low processing efficiency and high labor costs. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a pipe end nut assembly device that can realize automatic nut supply and can quickly and accurately perform nut pressing and necking processing on the pipe end.

[0004] To solve the above problems, the technical solution adopted by the present invention is as follows: a pipe end nut assembly device, comprising: a frame, characterized in that: a nut pressing mold that can slide left and right is provided on the frame, a nut pressing drive mechanism that can drive the nut pressing mold to move left and right, and a nut supply device for providing nuts to the nut pressing mold. After the nut pressing mold moves towards the pipe end under the drive of the nut pressing drive mechanism, the nut pressing mold can press the nut into the pipe end, and after pressing the nut, it can also perform a necking process on the pipe end so that the nut in the pipe end cannot leave the pipe; the nut supply device includes: a vibratory plate, a horizontally arranged pushing channel, a slide, parallel opening and closing pneumatic fingers, and a finger drive mechanism for driving the pneumatic fingers to move. A clamping block is fixed on each of the two grippers of the pneumatic fingers, and each clamping block is provided with a clamping device. The device includes two clamping slots located opposite the outlet of the push channel. These slots receive nuts pushed out of the push channel. The outlet of the vibratory feeder is connected to the inlet of the slide, allowing the nuts output by the vibratory feeder to roll and arrange themselves in the slide. A drop opening is located at the top of the push channel, and the outlet of the slide is connected to the drop opening, allowing the nuts in the slide to fall one by one into the push channel. A push rod and a push drive mechanism are installed on the push channel. The push rod passes through the push channel and, driven by the push drive mechanism, pushes one nut that has fallen into the push channel out of the push channel and into the space between the two clamping slots until the nut abuts against the bottom of the two clamping slots. At this point, the two clamping slots clamp the nut under the drive of the pneumatic fingers. The pneumatic fingers, driven by the finger drive mechanism, transfer the clamped nut to the nut pressing mold.

[0005] Furthermore, in the aforementioned pipe end nut assembly device, the push channel is arranged in a left-right direction, and both the pneumatic finger and the push channel are located above the nut pressing mold. The structure of the finger driving mechanism is as follows: a horizontal pneumatic slide is provided on the frame, a vertical pneumatic slide is installed on the slide of the horizontal pneumatic slide, and the pneumatic finger is installed on the slide of the vertical pneumatic slide. The horizontal pneumatic slide can drive the vertical pneumatic slide and the pneumatic finger to move left and right, and the vertical pneumatic slide can drive the pneumatic finger to move up and down.

[0006] Furthermore, in the aforementioned tube end nut assembly device, a detection through hole and a photoelectric sensor are provided in the middle of the slide, which penetrate the slide from the side. The transmitting end and receiving end of the photoelectric sensor are located on both sides of the detection through hole, respectively. The signal emitted by the transmitting end can pass through the detection through hole and be received by the receiving end. The nut in the slide can trigger the photoelectric sensor by blocking the signal transmission.

[0007] Furthermore, in the aforementioned pipe end nut assembly device, the nut supply device is also equipped with a linear vibrator, which is fixed to the slide rail.

[0008] Furthermore, in the aforementioned pipe end nut assembly device, the slide consists of a straight section and an inclined section, the outlet of the straight section is connected to the inlet of the inclined section, the inlet of the straight section is connected to the outlet of the vibrating plate, and the outlet of the inclined section is connected to the drop port.

[0009] The advantages of this invention are: the pipe end nut assembly device can realize automatic nut supply and can quickly and accurately perform nut pressing and necking processing on the pipe end, thereby greatly improving processing efficiency and reducing labor costs. Attached Figure Description

[0010] Figure 1 is a schematic diagram of the pipe end nut assembly device of the present invention.

[0011] Figure 2 is a schematic diagram of the arrangement of the push rod, push channel, slide, and pneumatic finger.

[0012] Figure 3 is a schematic diagram of the pneumatic finger. Detailed Implementation

[0013] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0014] As shown in Figures 1, 2, and 3, the pipe end nut assembly device includes: a frame 1, on which a nut pressing mold 15 that can slide left and right is mounted; a nut pressing drive mechanism that can drive the nut pressing mold 15 to move left and right; and a nut supply device for supplying nuts to the nut pressing mold 15. In this embodiment, the nut pressing mold 15 is mounted on a slide block, which is mounted on the frame 1 via a linear guide rail. The nut pressing drive mechanism is a hydraulic cylinder. Under the drive of the nut pressing drive mechanism, the nut pressing mold 15 moves towards the pipe end. After the part moves, the nut pressing die 15 can press the nut into the end of the pipe, and after pressing the nut, it can also perform a necking process on the end of the pipe, so that the nut in the end of the pipe cannot leave the pipe; the structure of the nut supply device includes: a vibratory plate 16, a horizontally arranged pushing channel 18, a slide 19, parallel opening and closing pneumatic fingers 20, and a finger driving mechanism for driving the movement of the pneumatic fingers 20. A clamping block 21 is fixed on each of the two grippers of the pneumatic fingers 20, and each clamping block 21 is provided with a clamping groove 22. Two clamping grooves 22 are located opposite the outlet of the push channel 18. These grooves receive the nuts pushed out of the push channel 18. The outlet of the vibratory feeder 16 is connected to the inlet of the slide rail 19, allowing the nuts output from the vibratory feeder 16 to roll and arrange themselves in the slide rail 19. A drop outlet 23 is provided at the top of the push channel 18, and the outlet of the slide rail 19 is connected to the drop outlet 23, allowing the nuts in the slide rail 19 to fall one by one into the push channel 18 through the drop outlet 23. A push rod 2 is provided on the push channel 18. 5. Pushing drive mechanism. In this embodiment, the pushing drive mechanism is a cylinder. The pushing rod 25 passes through the pushing channel 18. Under the drive of the pushing drive mechanism, the pushing rod 25 can push out one of the nuts that has fallen into the pushing channel 18 and push it into the space between the two clamping slots 22 until the nut abuts against the bottom of the two clamping slots 22. At this time, the two clamping slots 22 can clamp the nut under the drive of the pneumatic finger 20. Under the drive of the finger driving mechanism, the pneumatic finger 20 can transfer the clamped nut to the nut pressing mold 15.

[0015] In this embodiment, in order to make the layout of the pipe end nut assembly device more reasonable, the push channel 18 is arranged in a left-right direction. The pneumatic finger 20 and the push channel 18 are both located above the nut pressing mold 15. The structure of the finger driving mechanism is as follows: a horizontal pneumatic slide 26 is provided on the frame 1, a vertical pneumatic slide 27 is installed on the slide of the horizontal pneumatic slide 26, and the pneumatic finger 20 is installed on the slide of the vertical pneumatic slide 27. The horizontal pneumatic slide 26 can drive the vertical pneumatic slide 27 and the pneumatic finger 20 to move left and right, and the vertical pneumatic slide 27 can drive the pneumatic finger 20 to move up and down.

[0016] A detection through hole and a photoelectric sensor 28 are provided in the middle of the slide 19, which pass through the slide from the side. The transmitting end and the receiving end of the photoelectric sensor 28 are located on both sides of the detection through hole. The signal emitted by the transmitting end can pass through the detection through hole and be received by the receiving end. The nut in the slide 19 can trigger the photoelectric sensor 28 by blocking the signal transmission.

[0017] The nut supply device is also equipped with a linear vibrator 17, which is fixed to the slide rail 19 so that the linear vibrator 17 can drive the slide rail 19 to vibrate, thereby allowing the nut 24 to roll smoothly in the slide rail 19.

[0018] To slow down the rolling speed of the nut in the slide 19 and prevent the nut from being pushed out of the slide 19, the slide 19 is composed of a straight section 191 and an inclined section 192. The outlet of the straight section 191 is connected to the inlet of the inclined section 192. The inlet of the straight section 191 is connected to the outlet of the vibrating plate 16. The outlet of the inclined section 192 is connected to the drop port 23. The linear vibrator 17 is fixed to the straight section 191.

[0019] The nut pressing mold 15 in this embodiment has the same structure as the pressing mold disclosed in the invention patent with patent number 201710650603.X and title "Fixing Method of Pipe End Embedded Nut". Before pressing, the nut 24 needs to be mounted on the positioning roller of the nut pressing mold 15 under the drive of the finger driving mechanism.

[0020] The working process of the nut supply device is as follows: Initially, the vibratory plate 16 vibrates and transports the nuts on it to the slide 19. The linear vibrator 17 vibrates continuously, allowing the nuts to roll smoothly along the slide 19. After the first nut in the slide 19 falls from the drop port 23 into the push channel 18, the other nuts in the slide 19 will sequentially abut against each other and arrange themselves in the slide 19. When a certain number of nuts are arranged in the slide 19, the nuts will continuously block the signal and continuously trigger the photoelectric sensor 28. After the photoelectric sensor 28 is continuously triggered for a certain period of time, the vibratory plate 16 will stop vibrating. The push rod 25, driven by the push drive mechanism, will push the nuts 24 that have fallen into the push channel 18 to the space between the two clamping slots 22. Then, the two clamping slots 22, driven by the pneumatic fingers 20, can clamp the nuts 24. Then, the pneumatic fingers 20, driven by the horizontal pneumatic slide 26, will move inward. The pneumatic finger 20 moves downward under the drive of the vertical pneumatic slide 27 until the nut is coaxial with the positioning roller on the nut pressing mold 15. Then, the pneumatic finger 20 moves towards the nut pressing mold 15 under the drive of the horizontal pneumatic slide 26, so that the nut can be fitted onto the positioning roller on the nut pressing mold 15. Then, the pneumatic finger 20 releases the nut. Then, the pneumatic finger 20 resets under the drive of the horizontal pneumatic slide 26 and the vertical pneumatic slide 27. After the push rod 25 pushes a nut and resets, one nut in the slide 19 will fall into the push channel 18. As processing continues, the number of nuts in the slide 19 will gradually decrease. When the photoelectric sensor 28 is not triggered, the vibratory plate 16 will start vibrating again, so that the nuts arranged in the slide 19 can be replenished, until the photoelectric sensor 28 is continuously triggered again for a certain period of time and then the vibratory plate 16 stops vibrating.

Claims

1. Pipe end nut assembly device, including: The frame is characterized by: a slidable nut pressing die, a nut pressing drive mechanism that drives the nut pressing die to move left and right, and a nut supply device for supplying nuts to the nut pressing die. Driven by the nut pressing drive mechanism, the nut pressing die moves towards the end of the pipe, pressing the nut into the end of the pipe. After pressing the nut, the end of the pipe is also narrowed, preventing the nut from leaving the pipe. The nut supply device includes: a vibratory feeder, a horizontally arranged push channel, a slide, parallel opening and closing pneumatic fingers, and a finger drive mechanism for driving the pneumatic fingers. A clamping block is fixed to each of the two grippers of the pneumatic fingers, and each clamping block has a clamping groove located at the outlet of the push channel. On the opposite side, two clamping slots can receive the nuts pushed out from the push channel. The outlet of the vibratory feeder is connected to the inlet of the slide, so that the nuts output by the vibratory feeder can roll down and arrange in the slide. A drop port is set at the top of the push channel, and the outlet of the slide is connected to the drop port, so that the nuts in the slide can fall into the push channel one by one through the drop port. A push rod and a push drive mechanism are set on the push channel. The push rod passes through the push channel. Driven by the push drive mechanism, the push rod pushes one of the nuts that has fallen into the push channel out of the push channel and pushes it into the space between the two clamping slots until the nut abuts against the bottom of the two clamping slots. At this time, the two clamping slots can clamp the nut under the drive of the pneumatic fingers. Driven by the finger drive mechanism, the pneumatic fingers can transfer the clamped nut to the nut pressing mold.

2. The pipe end nut assembly device according to claim 1, characterized in that: The push channel is arranged in a left-right direction. Both the pneumatic finger and the push channel are located above the nut pressing mold. The structure of the finger drive mechanism is as follows: a horizontal pneumatic slide is set on the frame, and a vertical pneumatic slide is installed on the slide of the horizontal pneumatic slide. The pneumatic finger is installed on the slide of the vertical pneumatic slide. The horizontal pneumatic slide can drive the vertical pneumatic slide and the pneumatic finger to move left and right, and the vertical pneumatic slide can drive the pneumatic finger to move up and down.

3. The pipe end nut assembly device according to claim 1 or 2, characterized in that: A detection through-hole and a photoelectric sensor are installed in the middle of the slide, which penetrate the slide from the side. The transmitting end and the receiving end of the photoelectric sensor are located on both sides of the detection through-hole. The signal emitted by the transmitting end can pass through the detection through-hole and be received by the receiving end. The nut in the slide can trigger the photoelectric sensor by blocking the signal transmission.

4. The pipe end nut assembly device according to claim 1 or 2, characterized in that: The nut supply device is also equipped with a linear vibrator, which is fixed to the slide rail.

5. The pipe end nut assembly device according to claim 1 or 2, characterized in that: The slide consists of a straight section and an inclined section. The outlet of the straight section is connected to the inlet of the inclined section. The inlet of the straight section is connected to the outlet of the vibrating plate, and the outlet of the inclined section is connected to the drop outlet.

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