A pipe continuous feeding and clamping mechanism for a nut pressing machine

Abstract

The invention discloses a continuous feeding and clamping mechanism for pipe fittings used in a nut pressing machine, comprising: a support plate, wherein the inner side surface of the support plate is provided with a stacking mechanism for facilitating stacking of pipe fittings, and the pipe fittings are placed on the stacking mechanism; a positioning block, used for positioning the pipe fittings; a pipe clamp component, located on the inner side of the support plate and corresponding to the support plate, and used for continuously pushing the pipe fittings on the stacking mechanism onto the positioning block; a pusher component, corresponding to the pipe clamp component, and when the pipe clamp component pushes the pipe fittings, the pipe clamp component and the pusher component respectively clamp two sides of the pipe fittings; first, the pipe fittings in the stacking mechanism are pushed onto the positioning block by the pipe clamp component, and the pipe clamp component and the pusher component respectively clamp two sides of the pipe fittings, and then nuts are pressed into the pipe fitting ports. The invention provides a continuous feeding and clamping mechanism for pipe fittings used in a nut pressing machine with high efficiency and low cost.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical equipment, and in particular to a pipe continuous feeding and clamping mechanism for a nut pressing machine. Background Art

[0002] A nut is a part that can tightly connect mechanical equipment. It is usually used in conjunction with bolts to achieve the purpose of fastening parts. The pipes in the rack are mainly connected by bolts. Specifically, a nut is pressed into the port of the pipe, and the bolts are respectively inserted into the two nuts to achieve the connection of the two pipes. A nut press is required. According to the prior art, there is an automatic nut press that requires manual loading and unloading of pipes one by one, which is inefficient and costly. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the defects of the above prior art and provide a pipe continuous feeding and clamping mechanism for a nut pressing machine with high efficiency and low cost.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the present invention is: a pipe continuous feeding and clamping mechanism for a nut pressing machine, which comprises:

[0005] A support plate, wherein the inner side of the support plate is provided with a stacking mechanism for facilitating stacking of pipe fittings, and the pipe fittings are placed on the stacking mechanism;

[0006] Positioning block, used to position the pipe fitting;

[0007] The pipe clamp component is located on the inner side of the support plate, corresponding to the support plate, and is used to continuously push the pipes on the stacking mechanism onto the positioning block;

[0008] The push handle component corresponds to the pipe clamp component. When the pipe clamp component pushes the pipe fitting, the pipe clamp component and the push handle component clamp two sides of the pipe fitting respectively.

[0009] First, use the pipe clamp component to push the pipe fittings in the stacking mechanism onto the positioning block, and the pipe clamp component and the push handle component clamp both sides of the pipe fitting respectively, and then press the nut into the pipe fitting port.

[0010] After adopting the above structure, the present invention has the following advantages compared with the prior art: the entire mechanism includes a stacking mechanism for stacking pipe fittings, a positioning block for positioning the pipe fittings to be pressed with nuts, a pipe clamp component for pushing the pipe fittings in the stacking mechanism to the positioning block, and a pusher component for holding the pipe fittings during the pipe pushing process and the nut pressing process. The pipe clamp component is mainly used to continuously feed the pipe fittings, and the pipe clamp component and the pusher component are used to connect and clamp the pipe fittings, replacing manual labor, with high efficiency and low cost.

[0011] Preferably, the stacking mechanism comprises a front baffle, a rear baffle, a baffle block and a pipe clamping block;

[0012] The front baffle plate and the rear baffle plate are both arranged on the support plate, and the pipe fittings to be pressed with nuts are stacked up and down between the front baffle plate and the rear baffle plate;

[0013] The rear end of the stopper is arranged on the rear baffle, the front end of the stopper extends below the front baffle, the lowest pipe is located on the stopper, and the pipe clamp component pushes the pipe on the stopper through the gap between the stopper and the front baffle into the positioning block;

[0014] The upper end of the pipe clamping block is hinged on the front baffle, and the lower end of the pipe clamping block extends toward the block. In a free state, the pipe fittings located on the block are blocked by the pipe clamping port block. The pipe fittings are placed on the front baffle and the rear baffle support plate so that the pipe fittings are stacked from top to bottom. The block is provided to prevent the pipe fittings from falling down, and the pipe clamping block is used to prevent the pipe fittings from rolling out of the gap between the block and the front baffle, and the reliability is high.

[0015] Preferably, the block is L-shaped, the pipe fitting is located on the high surface of the block, and the lower end of the pipe clamping block extends to the low surface of the block, so that the contact area between the block and the pipe fitting is larger and the blocking effect is better.

[0016] Preferably, it also includes a counterweight block and a connecting rod, and the connecting rod, counterweight block and pipe clamping block are arranged in sequence from top to bottom, the upper end of the connecting rod is hinged to the front baffle, the upper end of the counterweight block is hinged to the lower end of the connecting rod, and the lower end of the counterweight block is hinged to the pipe clamping block. The counterweight block and the connecting rod are arranged so that a connecting rod mechanism is formed between the counterweight block, the connecting rod and the block, so that when the pipe fitting is pushed out, the block is always pressed on the pipe fitting to prevent the pipe fitting from running out, with high reliability, and at the same time, it can ensure that the block can be reset.

[0017] Preferably, a guide rod is further provided on the side of the support plate, and the guide rod is tilted so that the pipe can roll down from the guide rod to between the front baffle and the rear baffle, thereby facilitating the pipe to roll down to the front baffle and the rear baffle support plates.

[0018] Preferably, it also includes a top block and a support rod;

[0019] The top block is vertically arranged near the rear baffle;

[0020] One end of the support rod is hinged in the pipe clamp component, and the other end of the support rod is hinged to the top block. When the pipe clamp component approaches and moves away from the positioning block, the support rod drives the top block to move up and down, thereby lifting the pipe fittings in the guide rod. The support rod drives the top block to move up and down, thereby lifting the pipe fittings on the guide rod, making it easier for the pipe fittings on the guide rod to roll between the front baffle and the rear baffle.

[0021] Preferably, a first arc groove is provided on the side surface of the positioning block near one end of the pipe clamp component, and the pipe fitting is pressed tightly in the first arc groove when the nut is pressed, so as to facilitate the pressing of the pipe fitting.

[0022] Preferably, the pushing hand component includes a first driving member and a pushing hand piston rod for holding the pipe fitting, one end of the pushing hand piston rod is connected to the first driving member, and the other end of the pushing hand piston rod passes through the positioning block and extends into the first arc groove. When resetting, the pushing hand piston rod is flush with the bottom of the first arc groove. The structure is simple and does not take up space. The pushing hand component is arranged on the positioning block to play a guiding role and at the same time the force is evenly distributed.

[0023] Preferably, the pipe clamp component includes a second driving member and a slide. The second driving member drives the slide to approach and move away from the positioning block. The side of the slide near the positioning block is provided with a second arc groove for holding the pipe. The slide pushes the pipe at the bottom of the stacking mechanism onto the positioning block, which has high reliability.

[0024] Preferably, it also includes a guide rail group, which is arranged horizontally, the positioning block is slidably fitted on the front end of the guide rail group, the pipe clamp component is slidably fitted on the rear end of the guide rail group, and the support plate is slidably fitted on the guide rail group. The positions of the support plate, the pipe clamp component and the positioning block can be adjusted to suit pipe nuts of different lengths.

[0025] Preferably, the number of the support plates is two, and an anti-bending mechanism for preventing the pipe from bending is provided between the support plates. The anti-bending mechanism is used to clamp the pipe located at the positioning block and is suitable for the compression nuts at both ends of the long pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The present invention is a stereoscopic diagram of a pipe continuous feeding and clamping mechanism for a nut pressing machine.

[0027] Figure 2 It is a stereoscopic diagram of a pipe continuous feeding, clamping and stacking mechanism for a nut pressing machine according to the present invention.

[0028] Figure 3 The present invention is a stereoscopic diagram of a positioning block and a pusher component of a pipe continuous feeding and clamping mechanism for a nut pressing machine.

[0029] Figure 4 The present invention is a stereoscopic diagram of a pipe clamping component of a pipe continuous feeding and clamping mechanism for a nut pressing machine.

[0030] Figure 5 It is a stereoscopic diagram of an anti-bending mechanism of a pipe continuous feeding and clamping mechanism for a nut pressing machine according to the present invention.

[0031] Figure 6 The present invention is a stereoscopic diagram of a pipe continuous feeding and clamping mechanism for a nut pressing machine used for a long pipe.

[0032] Figure 7The present invention is a stereoscopic diagram of a pipe continuous feeding and clamping mechanism for a nut pressing machine installed on the nut pressing machine.

[0033] Among them, 1. support plate, 2. pipe fittings, 3. stacking mechanism, 310. front baffle, 320. rear baffle, 330. block, 340. pipe clamping block, 350. counterweight, 360. connecting rod, 370. guide rod, 380. top block, 390. support rod, 4. positioning block, 5. pipe clamp component, 510. second driving component, 520. slide, 530. base, 6. push handle component, 610. first driving component, 620. push handle piston rod, 7. first arc groove, 8. second arc groove, 9. guide rail group, 10. anti-bending mechanism, 11. first opening groove, 12. second opening groove, 13. slide groove, 14. support column, 15. guide block, 16. groove, 17. fixed seat, 18. clamping block, 19. third driving component, 20. adjustment plate, 21. slide rail, 22. auxiliary rod. DETAILED DESCRIPTION

[0034] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0035] like Figure 1 As shown, the present invention provides a continuous feeding and clamping mechanism for pipe fittings for a nut pressing machine, comprising a support plate 1, a stacking mechanism 3, a positioning block 4, a pipe clamp component 5 and a pusher component 6. The stacking mechanism 3 is arranged on the inner side of the support plate 1, the pipe clamp component 5 is located below the stacking mechanism 3, the positioning block 4 and the pusher component 6 are both located in front of the pipe clamp component 5, the pipe clamp component 5 pushes the pipe fitting 2 in the stacking mechanism 3 toward the positioning block 4, and the pusher component 6 moves in the direction of the pipe clamp component 5 during the pushing process, and the pusher component 6 always abuts against the front side of the pipe fitting 2. When the pipe clamp component 5 abuts the pipe fitting 2 against the positioning block 4, the nut pressing machine is used to press the pipe fitting 2, and after the nut pressing action is completed, the pipe clamp component 5 is reset, the pusher component 6 is reset, and then the action is repeated to achieve continuous feeding and clamping.

[0036] As an example, Figure 1 and 2The stacking mechanism 3 includes a front baffle 310, a rear baffle 320, a stopper 330 and a pipe clamping block 340. The front baffle 310 and the rear baffle 320 are both vertically arranged on the inner side of the support plate 1, and the pipe fittings 2 are stacked up and down between the front baffle 310 and the rear baffle 320. Specifically, in order to facilitate feeding one by one, the spacing between the front baffle 310 and the rear baffle 320 is the diameter of the pipe fitting 2. The bottom surface of the front baffle 310 is located above the bottom surface of the rear baffle 320, the rear end of the stopper 330 is arranged on the rear baffle 320, the front end of the stopper 330 is a free end and extends below the front baffle 310, and the pipe fitting 2 located at the bottom is located on the stopper 330, so that there is a gap between the front baffle 310 and the stopper 330. When the pipe clamp component 5 pushes the pipe fitting 2 located at the bottom forward onto the positioning block 4, the pipe fitting 2 is separated from the stacking mechanism 3 from the gap between the front baffle 310 and the stopper 330. At the same time, in order to ensure that the pipe fitting 2 does not run out of the gap between the front baffle 310 and the block 330 when the pipe clamp component 5 is not pushed, the pipe clamping block 340 is set in the gap between the front baffle 310 and the block 330 to block it. Specifically, in order to ensure reliability, the pipe clamping block 340 is hinged with the front baffle 310. When the pipe clamp component 5 pushes the pipe fitting 2, the pipe fitting 2 will push the pipe clamping block 340, and the pipe clamping block 340 will rotate, so that the pipe clamp component 5 can smoothly push the pipe fitting 2 out of the block 330. When the pipe fitting 2 is completely out of the block 330, the pipe clamping block 340 returns to its original position and continues to block the pipe fitting 2 between the front baffle 310 and the rear baffle 320.

[0037] As an embodiment, the shape of the stopper 330 is L-shaped, and the opening of the stopper 330 is respectively toward the support plate 1 and upward, the pipe fitting 2 located at the bottom is located at the high position of the stopper 330, and the lower end of the pipe clamping block 340 extends to the low position of the baffle 330, so that the upper end of the pipe clamping block 340 is in contact with the pipe fitting 2, and the upper end of the pipe clamping block 340 can be used to block the pipe fitting 2, so that the pipe fitting 2 needs a large thrust to push the pipe clamping block 340 to break away from the stopper 330, ensuring that when the pipe clamp component 5 does not apply force to the pipe fitting 2, the pipe fitting 2 will not break away from the stopper 330 due to the gravity between the pipe fittings 2. Specifically, in order to ensure that the pipe clamping block 340 has sufficient blocking force and reset force, a counterweight block 350 and a connecting rod 360 are provided, and a connecting rod mechanism is formed between the counterweight block 350, the connecting rod 360 and the pipe clamping block 340. The connecting rod 360, the counterweight block 350 and the pipe clamping block 340 are arranged in sequence from top to bottom. The upper end of the pipe clamping block 340 is hinged to the bottom of the front baffle 310, the upper end of the connecting rod 360 is hinged to the upper end of the front baffle 310, and the two ends of the counterweight block 350 are respectively hinged to the connecting rod 360 and the pipe clamping block 340. Specifically, in order to facilitate the rotation of the connecting rod 360 and the pipe clamping block 340, a first opening groove 11 with an opening downward is provided at the bottom of the front baffle 310, and the pipe clamping block 340 is hinged in the first opening groove 11. The first opening groove 11 runs through the front and rear sides of the front baffle 310 from front to back, and a second opening groove 12 is provided on the front side of the front baffle 310, and the connecting rod 360 is hinged to the second opening groove 12.

[0038] As an example, Figure 2 , which is convenient for placing pipes 2 of different diameters between the front baffle 310 and the rear baffle 320, and the position of the front baffle 310 can be adjusted to adjust the distance between the front baffle 310 and the rear baffle 320. Specifically, at least two mutually parallel slide grooves 13 are provided on the side of the support plate 1, and the bolts pass through the slide grooves 13 from the outer side of the support plate 1 and are screwed on the front baffle 310, and the position of the front baffle 310 is achieved by adjusting the position of the bolts in the slide grooves 13. Specifically, the slide grooves 13 are arranged obliquely, and when the distance between the front baffle 310 and the rear baffle 320 is increased, the gap between the front baffle 310 and the block 330 increases accordingly, which is convenient for the pipes 2 of large diameter to pass through, and the reliability is high. Specifically, the number of the slide grooves 13 is two.

[0039] As an example, Figure 2 A guide rod 370 is also provided on the support plate 1, and the guide rod 370 is used to guide the pipe fitting 2 between the front baffle 310 and the rear baffle 320. Specifically, the guide rod 370 is arranged obliquely. Specifically, the guide rod 370 can be provided on the front baffle 310, so that the pipe fitting 2 can be added to the guide rod 370 on the front side; it can also be provided on the rear baffle 320, so that the pipe fitting 2 can be added to the guide rod 370 on the rear side, or it can be provided on the front baffle 310 and the rear baffle 320 respectively, so that the pipe fitting 2 can be added to the guide rod 370 on the front side or the rear side at will. Specifically, the ends of the guide rod 370 away from the rear baffle 320 are bent upward to block the pipe fitting 2, so as to prevent the pipe fitting 2 from falling on the ground instead of rolling between the front baffle 310 and the rear baffle 320, and the reliability is high. When in use, you only need to put the pipe 2 on the guide rod 370, and the pipe 2 will roll down between the front baffle 310 and the rear baffle 320 due to its own weight. Specifically, a plurality of support columns 14 are arranged on the side of the support plate 1, and the support columns 14 are parallel to each other, and the guide rod 370 is welded to the support columns 14.

[0040] As an example, Figure 1 and 4In order to make it easier for the pipe fitting 2 of the guide rod 370 to roll between the front baffle 310 and the rear baffle 320, a top block 380 and a support rod 390 are provided. One end of the support rod 390 is hinged to the pipe clamp component 5, and the other end of the support rod 390 is hinged to the top block 380. When the pipe clamp component 5 moves toward the direction close to the positioning block 4, the support rod 390 swings upward to drive the top block 380 to move downward, thereby lifting the pipe fitting 2 on the guide rod 370. When the guide rod 370 is reset downward, the pipe fitting 2 is easier to roll between the front baffle 310 and the rear baffle 320, which is convenient for the pipe clamp component 5 to continuously feed. When the pipe clamp component 5 is reset, the top block 380 is also reset. Specifically, in order to ensure that the top block 380 can only move up and down, a guide block 15 is also provided, and the top block 380 is slidably matched on the guide block 15. Specifically, in order to facilitate the separation of the pipe fitting 2 between the front baffle 310 and the rear baffle 320 from the pipe fitting 2 on the guide rod 370, the front side surface of the top block 380 and the inner side surface of the rear baffle 320 are located in the same vertical plane. Specifically, the upper surface of the top block 380 is an inclined surface, that is, the height of the end of the top block 380 close to the positioning block 4 is greater than the height of the end of the top block 380 away from the positioning block 4, which has a good effect.

[0041] As an example, Figure 3 A first arc groove 7 is provided on the rear side of the positioning block 4, and the pipe fitting 2 is clamped in the first arc groove 7 when the nut is pressed, so the reliability is high.

[0042] As an example, Figure 4 The pipe clamp component 5 includes a second driving member 510, a ram 520 and a base 530. The second driving member 510 and the ram 520 are both arranged on the base 530. The second driving member 510 drives the ram 520 to slide and fit on the base 530, so that the ram 520 can approach and move away from the positioning block 4. In order to facilitate the ram 520 to hold the pipe 2 when pushing the pipe 2, a second arc groove 8 is arranged on the front side of the ram 520. When the ram 520 pushes the pipe 2, the rear side of the pipe 2 abuts against the second arc groove 8. Specifically, in order to realize the feeding of the pipes 2 one by one, the upper surface of the ram 520 is an inclined surface. When the ram 520 pushes the bottom pipe 2, the inclined surface on the upper surface of the ram 520 separates the bottom pipe 2 from the other pipes 2 located between the front baffle 310 and the rear baffle 320. Specifically, in order to push the pipe 2 more stably, a groove 16 is provided on the front side of the ram 520, and the groove 16 passes through the ram 520 from top to bottom, so that two open clamping claws are formed on the front side of the ram 520, and the second arc groove 8 is respectively provided on the two clamping claws, and the two clamping claws are used to hold the pipe 2. Specifically, the support rod 390 is hinged in the groove 16, and the top block 380 is fixed on the base 530.

[0043] As an example, Figure 3The push handle component 6 includes a first driving member 610 and a push handle piston rod 620. The first driving member 610 drives the push handle piston rod 620 to approach the pipe fitting 2 to hold the front side of the pipe fitting 2. Specifically, the push handle piston rod 620 is mainly pushed by inflating the first driving member 610. When the tube clamp component 5 pushes the pipe fitting 2 to move in the direction close to the positioning block 4, the air release valve of the first driving member 610 is opened to allow air to be released, and the push handle piston rod 620 moves back and the push handle piston rod 620 is always against the pipe fitting 2, and the push handle piston rod 620 and the ram 520 are used to hold the pipe fitting 2. Specifically, the push handle piston rod 620 passes through the positioning block 4 on the front side of the positioning block 4 and extends into the first arc groove 7, so that the positioning block 4 plays a guiding role, does not occupy space, and improves reliability. When the push handle piston rod 620 pushes the pipe 2 into the first arc groove 7 on the positioning block 4, the push handle piston rod 620 is just reset, the surface of the push handle piston rod 620 is flush with the bottom surface of the first arc groove 7, and the ram 520 clamps the pipe 2 in the first arc groove 7, so that the nut can be pressed toward the end of the pipe 2. The ram 520 is reset after the nut is pressed.

[0044] As an example, Figure 5 In order to ensure that the long pipe will not bend or fold under the clamping force, an anti-bending mechanism 10 is provided. The anti-bending mechanism 10 includes a fixed seat 17, a clamping block 18 and a third driving member 19. The third driving member 19 is arranged on the fixed seat 17. A first arc groove 7 is also provided behind the fixed seat 17. When the pipe 2 is clamped in the first arc groove 7 of the positioning block 4, the pipe 2 is simultaneously located in the first arc groove 7 on the fixed seat 17. The third driving member 17 drives the clamping block 18 to rotate downward and squeeze on the rear side of the pipe 2. Correspondingly, a second arc groove 8 is also provided on the clamping block 18. The clamping block 18 is used to press the pipe 2 onto the fixed seat 17 to achieve anti-bending. Specifically, the clamping block 18 is hinged to the piston rod of the third driving member 19 and an auxiliary rod 22 is also provided. The lower end of the auxiliary rod 22 is hinged to the fixed seat 17, and the upper end of the auxiliary rod 22 is clamped with the clamping block 18. In this way, the piston rod of the third driving member 19 drives the clamping block 18 to swing downward to clamp the pipe fitting 2.

[0045] As an example, Figure 6 and 7, it also includes a guide rail group 9 and a slide rail 21. The guide rail group 9 is arranged on the workbench of the nut pressing machine. The guide rail group 9 includes a plurality of guide rails parallel to each other, and the guide rails are arranged along the length direction of the workbench. The positioning block 4 is arranged on the guide rail at the front end, the base 530 of the pipe component 5 is arranged on the guide rail at the rear end, and the support plate 1 is arranged on the slide rail 21. The positioning block 4 and the base 530 can both be slidably matched on the guide rail to adjust the position, and the support plate 1 can be slidably matched on the slide rail 21 to adjust the position to adapt to the nuts of different lengths of pipes 2. Specifically, it also includes an adjustment plate 20. The positioning block 4, the base 530 and the fixed seat 17 all correspond to the adjustment plate 20. The adjustment plate 20 is detachably connected to the bottom of the positioning block 4 by bolts. The bottom of the adjustment plate 20 cooperates with the bottom of the guide rail. The base 530 and the fixed seat 17 are also connected in the same way. The support plate 1 is fixed with the entire nut pressing mechanism. There is a hole on the support plate 1 for the nut pressing mechanism to pass through to press the nut on the end of the pipe fitting 2. After adjusting the position of the support plate 1 on the slide rail, it is fixed with bolts.

[0046] Specifically, when pressing nuts on short pipes, for example, when the length of the pipe 2 is less than 80 mm, only one support plate 1, one pipe clamp component 5 and one positioning block 4 are required. Figure 6 and 7 When pressing nuts on long pipes, for example, when the length 2 of the pipe is greater than 80 mm, two support plates 1, two pipe clamp components 5, two positioning blocks 4 and a plurality of anti-bending mechanisms 10 are required. The two positioning blocks 4 are located between the two support plates 1, and the anti-bending mechanism 10 is located between the two positioning blocks 4. The two ends of the pipe 2 are respectively placed on the stacking mechanism 3, and nuts can be pressed on the two ends of the pipe 2 at the same time. Specifically, two support plates 1 can also be set for short pipes, and only the anti-bending mechanism 10 needs to be removed.

[0047] Specifically, the first driving member 610 and the third driving member 19 are air cylinders, and the second driving member 510 is an oil cylinder.

[0048] Specifically, the principle of the present invention is that the entire mechanism includes a stacking mechanism 3 for stacking pipe fittings 2, a positioning block 4 for positioning the pipe fittings 2 to be pressed with nuts, a pipe clamp component 5 for pushing the pipe fittings 2 in the stacking mechanism 3 to the positioning block 4, and a pusher component 6 for holding the pipe fittings 2 during the pushing process of the pipe fittings 2 and the pressing process of the nuts. The pipe clamp component 5 is mainly used to continuously feed the pipe fittings 2, and the pipe clamp component 5 and the pusher component 6 are used to connect and clamp the pipe fittings 2, which replaces manual labor and has high efficiency and low cost.

[0049] Working process: 1. Place the pipe 2 on the guide rod 370. The pipe 2 is placed along the length direction of the workbench. The pipe 2 rolls down between the front baffle 310 and the rear baffle 320 by its own weight. The pipes 2 are stacked from bottom to top, and the bottom pipe 2 is located on the stop block 330. 2. The first driving member 610 drives the pusher piston rod 620, and the pusher piston rod 620 abuts against the front side of the bottom pipe 2. 3. The second driving member 510 drives the ram 520 to move forward, and the second arc groove 8 on the ram 520 abuts against the rear side of the bottom pipe 2. At the same time, the support rod 390 moves forward. The upward swing drives the top block 380 to move upward, and at this time, the inclined surface of the slide ram 520 separates the lowest pipe 2 from the upper pipe 2; fourth, the second driving member 510 continues to drive the slide ram 520 to move forward, and the slide ram 520 moves the pipe 2 through the gap between the front baffle 310 and the block 330. At this time, the clamping pipe 340 swings upward, and the counterweight block 350 and the connecting rod 360 are linked together, and the pipe 2 between the front baffle 310 and the rear baffle 320 falls on the block 330 again; fifth, when the slide ram 520 pushes the pipe 2 away from the block 330, the pusher piston rod 620 moves upward. The pusher piston rod 620 is retracted and always abuts against the front side of the pipe fitting 2 (achieved by the air release valve). Due to the deadweight of the counterweight block 350, the counterweight block 350 swings downward, and the pipe clamping block 340 also swings downward to reset. The pipe clamping block 340 is blocked between the front baffle 310 and the baffle 330 again to prevent the pipe fitting 2 from escaping from the baffle 330 by itself; Sixth, when the ram 520 abuts the pipe fitting 2 against the first arc groove 7 on the positioning block 4, it stops moving, and the ejector block 380 ejects the pipe fitting 2 on the guide rod 370 corresponding to the rear baffle 320, and uses the inclined surface of the ejector block 380 to The pipe fitting 2 of the guide rod 370 is pushed away from the rear baffle 320, and the pusher piston rod 320 is reset (if it is a long pipe fitting, the third driving member 19 drives the clamping block 18 to press on the fixing seat 17 to achieve the bending resistance of the long pipe fitting); Seventh, the nut pressing mechanism on the outside of the support plate 1 is used to press the nut on the end of the pipe fitting 2 through the support plate 1; Eighth, the second driving member 510 drives the ram 520 to reset, the support rod 390 with the top block 380 to reset, the pipe fitting 2 of the guide rod 370 rolls down between the front baffle 310 and the rear baffle 320, and the pipe fitting 2 with the nut pressed falls for collection. Repeating steps 2 to 8 can achieve continuous feeding and clamping.

[0050] Based on the above scheme, if various changes or modifications to the present invention do not depart from the spirit and scope of the present invention, and if these changes and modifications fall within the scope of the claims and equivalent technologies of the present invention, the present invention is also intended to include these changes and modifications.

Claims

1. A continuous feeding and clamping mechanism for pipe fittings used in a nut pressing machine, characterized in that: It includes; A support plate (1), wherein the inner side of the support plate (1) is provided with a stacking mechanism (3) for facilitating stacking of the pipe fittings (2), and the pipe fittings (2) are placed on the stacking mechanism (3); A positioning block (4) for positioning the pipe fitting (2); A pipe clamp component (5) is located on the inner side of the support plate (1) and corresponds to the support plate (1), and is used to continuously push the pipe fittings (2) on the stacking mechanism (3) onto the positioning block (4); A push handle component (6) corresponds to the pipe clamp component (5), and when the pipe clamp component (5) pushes the pipe fitting (2), the pipe clamp component (5) and the push handle component (6) respectively clamp two sides of the pipe fitting (2); First, the pipe fitting (2) in the stacking mechanism (3) is pushed onto the positioning block (4) using the pipe clamp component (5), and the pipe clamp component (5) and the push handle component (6) respectively clamp the two sides of the pipe fitting (2), and then a nut is pressed into the end of the pipe fitting (2); The stacking mechanism (3) comprises a front baffle (310), a rear baffle (320), a baffle (330) and a pipe clamping block (340); The front baffle plate (310) and the rear baffle plate (320) are both arranged on the support plate (1), and the pipe fittings (2) to be pressed with nuts are stacked up and down between the front baffle plate (310) and the rear baffle plate (320); The rear end of the stopper (330) is arranged on the rear baffle (320), the front end of the stopper (330) extends below the front baffle (310), the lowest pipe fitting (2) is located on the stopper (330), and the pipe clamp component (5) pushes the pipe fitting (2) on the stopper (330) through the gap between the stopper (330) and the front baffle (310) onto the positioning block (4); The upper end of the pipe clamping block (340) is hinged on the front baffle (310), and the lower end of the pipe clamping block (340) extends toward the baffle (330), so that the pipe fitting (2) located on the baffle (330) in a free state is blocked by the pipe clamping block (340); It also includes a counterweight (350) and a connecting rod (360), wherein the connecting rod (360), the counterweight (350) and the pipe clamping block (340) are arranged in sequence from top to bottom, the upper end of the connecting rod (360) is hinged to the front baffle (310), the upper end of the counterweight (350) is hinged to the lower end of the connecting rod (360), and the lower end of the counterweight (350) is hinged to the pipe clamping block (340); A first arc-shaped groove (7) is provided on the side surface of the positioning block (4) near one end of the pipe clamp component (5), and the pipe component (2) is pressed tightly in the first arc-shaped groove (7) when the nut is pressed.

2. The continuous feeding and clamping mechanism for pipe fittings used in a nut pressing machine according to claim 1, characterized in that: A guide rod (370) is also provided on the side of the support plate (1); the guide rod (370) is arranged at an angle, and the pipe (2) rolls down from the guide rod (370) to between the front baffle plate (310) and the rear baffle plate (320).

3. The continuous feeding and clamping mechanism for pipe fittings used in a nut pressing machine according to claim 2, characterized in that: It also includes a top block (380) and a support rod (390); The top block (380) is vertically arranged near the rear baffle (320); One end of the support rod (390) is hinged in the pipe clamp component (5), and the other end of the support rod (390) is hinged to the top block (380). When the pipe clamp component (5) approaches or moves away from the positioning block (4), the support rod (390) drives the top block (380) to move up and down, thereby lifting the pipe fitting (2) on the guide rod (370).

4. The continuous feeding and clamping mechanism for pipe fittings used in a nut pressing machine according to claim 1, characterized in that: The push handle component (6) comprises a first driving member (610) and a push handle piston rod (620) for holding the pipe (2); one end of the push handle piston rod (620) is connected to the first driving member (610), and the other end of the push handle piston rod (620) passes through the positioning block (4) and extends into the first arc groove (7).

5. The pipe continuous feeding and clamping mechanism for a nut pressing machine according to claim 1, characterized in that: The pipe clamp component (5) comprises a second driving member (510) and a slide (520). The second driving member (510) drives the slide (520) to move closer to and farther from the positioning block (4). The side of the slide (520) near the positioning block (4) is provided with a second arc groove (8) for holding the pipe (2). The slide (520) pushes the pipe (2) at the bottom of the stacking mechanism (3) onto the positioning block (4).

6. The pipe continuous feeding and clamping mechanism for a nut pressing machine according to claim 1, characterized in that: It also includes a guide rail group (9) and a slide rail (21), wherein the guide rail group (9) is arranged transversely, the positioning block (4) is slidably fitted on the front end of the guide rail group (9), the pipe clamp component (5) is slidably fitted on the rear end of the guide rail group (9), and the support plate (1) is slidably fitted on the slide rail (21).

7. The pipe continuous feeding and clamping mechanism for a nut pressing machine according to claim 1, characterized in that: The number of the support plates (1) is two, and an anti-bending mechanism (10) for preventing the pipe (2) from bending is provided between the support plates (1), and the anti-bending mechanism (10) is used to clamp the pipe located on the positioning block (4).

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