A reaming device for plastic products and a method of using the same

Abstract

The present invention relates to the technical field of reaming processing, and specifically to a reaming device for plastic products and a method for using the device, comprising a reaming machine base, the outer surface of the reaming machine base is fixedly connected to a crawler mounting frame, the top surface of the crawler mounting frame is fixedly connected to a top mounting plate, the outer surface of the top mounting plate is provided with a switching mechanism, the bottom surface of the switching mechanism is provided with a direct-acting clamping mechanism, the bottom surface of the direct-acting clamping mechanism is provided with an intermittent transmission mechanism, the bottom surface of the switching mechanism is provided with a rotary reaming mechanism, the outer surface of the direct-acting clamping mechanism is fixedly connected to a clamping claw, the direct-acting clamping mechanism and the intermittent transmission mechanism realize clamping and intermittent rotation during downward reaming to realize linear drilling, the rotary reaming mechanism realizes turnover reaming through intermittent rotation, and the switching of different working modes is realized by controlling the opening and closing of the two mechanisms through the switching mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of reaming processing, in particular to a reaming device for plastic products and a use method thereof. Background Art

[0002] Reaming is a commonly used machining process, mainly used to improve the dimensional accuracy and surface roughness of holes. This process uses a reamer to finish the pre-drilled hole, remove burrs and uneven parts on the hole wall, and obtain a smooth and accurate hole shape.

[0003] At present, lathes are usually used to ream holes in plastic products.

[0004] The existing patent (CN109175513A) discloses a reaming device for plastic products, including a bidirectional ball screw, a motor, a nut seat 1, a clamping plate 1, a clamping plate 2, a nut seat 2, a universal joint tube, a micro air pump and a nozzle. The bidirectional ball screw is assembled in the middle position of the groove, the motor is installed in the middle position of the right end surface of the lower support seat, the nut seat 1 and the nut seat 2 are symmetrically arranged on the left and right sides of the bidirectional ball screw, the clamping plate 1 is fixed on the upper end surface of the nut seat 1, and the clamping plate 2 is fixed on the upper end surface of the nut seat 2. In the above-mentioned device, when reaming cylindrical plastic products, it is usually necessary to reame in a straight line or in a circle. The device may be difficult to achieve equidistant reaming of cylindrical plastic products in a straight line or a circle, or the spacing distance is difficult to adjust, which limits the flexibility of processing and increases processing time and labor intensity.

[0005] In view of this, we propose a reaming device for plastic products and a method for using the same. Summary of the invention

[0006] The object of the present invention is to provide a reaming device for plastic products and a method for using the same, so as to solve the problem mentioned in the above background technology that the existing reaming devices are difficult to achieve equidistant reaming of cylindrical plastic products on a straight line or a circle, or the spacing distance is difficult to adjust. To achieve the above object, the present invention provides the following technical solutions: A reaming device for plastic products and a method for using the same, comprising a reaming machine base, the outer surface of the reaming machine base is fixedly connected to a crawler mounting frame, the top surface of the crawler mounting frame is fixedly connected to a top mounting plate, the outer surface of the top mounting plate is provided with a switching mechanism, the bottom surface of the switching mechanism is provided with a direct-acting clamping mechanism, the bottom surface of the direct-acting clamping mechanism is provided with an intermittent transmission mechanism, the bottom surface of the switching mechanism is provided with a rotary reaming mechanism, and the outer surface of the direct-acting clamping mechanism is fixedly connected to a clamping claw.

[0007] Preferably, the top surface of the hinge machine base is fixedly connected with a feeding platform, the top surface of the hinge machine base is fixedly connected with a bottom mounting plate, the top surface of the crawler mounting frame is fixedly connected with a crawler support, and the outer surface of the crawler support is slidably connected with a transport crawler, the top surface of the crawler mounting frame is fixedly connected with a top bracket, the top surface of the top bracket is fixedly connected to the bottom surface of the top mounting plate, the outer surface of the top mounting plate is provided with a hinged groove for a hinged drill, the top surface of the top mounting plate is fixedly connected with a top protective plate, the bottom surface of the top protective plate is fixedly connected with a driving cylinder, the inner surface of the hinged groove for a hinged drill is slidably connected with a working hinged drill, the outer surface of the working hinged drill is fixedly connected with a hinged drill linkage frame, the output end of the driving cylinder is fixedly connected to the hinged drill linkage frame, the number of the clamping claws is two, and the two clamping claws are symmetrically distributed with the central axis of the working hinged drill as the symmetry axis, and the top surface of the clamping claw is provided with a hinged drill entry hole.

[0008] Preferably, the switching mechanism comprises a direct-acting base, the direct-acting base is fixedly connected to the bottom surface of the reamer-drill linkage frame, and a rotating protrusion is rotatably connected to the bottom surface of the direct-acting base.

[0009] Preferably, the number of the direct-acting bases is two, and the two direct-acting bases are symmetrically distributed with the central axis of the working reamer as the axis of symmetry.

[0010] Preferably, the direct-acting clamping mechanism includes a direct-acting control arm, the direct-acting control arm is slidably connected to the outer surface of the rotating protrusion, the outer surface of the direct-acting control arm is provided with a direct-acting control groove, the bottom surface of the direct-acting control arm is fixedly connected with a delay latch, the bottom surface of the direct-acting control arm is slidably connected with a downward pressure beam, and the outer surface of the downward pressure beam is provided with a delay slot, the outer surface of the lower pressure beam is fixedly connected with a four-rod mounting plate on the outer surface of the hinge machine base, the outer surface of the four-rod mounting plate is provided with a four-rod sliding groove, the inner surface of the four-rod sliding groove is fixedly connected to a limited position column, the outer surface of the downward pressure beam is fixedly connected with an active downward pressure rod, two ends of the active downward pressure rod are hingedly connected to a driven connecting rod, the other end of the driven connecting rod is hingedly connected to a rotating connecting rod, the other end of the rotating connecting rod is hingedly connected to a driven push-pull rod, the other end of the driven push-pull rod is hingedly connected to a driven moving block, and the outer surface of the driven moving block is fixedly connected with a clamping connecting arm.

[0011] Preferably, the rotating protrusion is slidably connected to the inner surface of the direct-acting control groove, the delay pin is slidably connected to the inner surface of the delay slot, the limit column passes through the lower pressure beam, and the limit column is slidably connected to the inner surface of the lower pressure beam, the rotating connecting rod is rotatably connected to the outer surface of the four-rod mounting plate, the number of the driven moving blocks is two, and the two driven moving blocks are symmetrically distributed with the central axis of the working reamer as the axis of symmetry, and the clamping connecting arm is fixedly connected to the outer surface of the clamping claw.

[0012] Preferably, the intermittent transmission mechanism includes a crawler control belt, the crawler control belt is fixedly connected to the outer surface of the transport crawler, the outer surface of the crawler control belt is fixedly connected to the crawler pawl, the two ends of the lower pressure beam are rotatably connected to the crawler push-pull arms, the other end of the crawler push-pull arm is hingedly connected to the pull rod mounting arm, the outer surface of the pull rod mounting arm is provided with a pull rod sliding groove, the inner surface of the pull rod sliding groove is slidably connected to the crawler pulling rod, the outer surface of the crawler push-pull arm is fixedly connected to a sliding embedded plate, the outer surface of the pull rod mounting arm is slidably connected to a pull rod limiting fork, the outer surface of the pull rod limiting fork is fixedly connected to the limiting fork screw rod, the outer surface of the limiting fork screw rod is threadedly connected to a control roller, the outer surface of the sliding embedded plate is slidably connected to an embedded slot, the bottom surface of the embedded slot is fixedly connected to a spring mounting column, and the outer surface of the spring mounting column is sleeved with a slot return spring.

[0013] Preferably, the track pawls are equidistantly distributed along the outer surface of the track control, the number of the track pulling rods is one, and both ends of the track pulling rod pass through the inner surface of the pull rod sliding groove and are slidably connected to the inner wall thereof, the track pulling rod is slidably connected to the outer surface of the track pawl, the pull rod limiting fork is slidably connected to the outer surface of the track pulling rod, the limiting fork screw rod passes through the interior of the pull rod mounting arm and is slidably connected to the inner wall thereof, the control roller is rotatably connected to the outer surface of the pull rod mounting arm, and the spring mounting column passes through the bottom mounting plate and is slidably connected to the bottom mounting plate.

[0014] Preferably, the rotary reaming mechanism includes a rotary control arm, the outer surface of the rotary control arm is slidably connected to the outer surface of the rotary protrusion, the outer surface of the rotary control arm is provided with a rotary control groove, the other end of the rotary control arm is fixedly connected to a chain mounting frame, the outer surface of the chain mounting frame is fixedly connected to a driving chain, the inner surface of the top mounting plate is fixedly connected to a rotating shaft mounting frame, the inner surface of the rotating shaft mounting frame is rotatably connected to a one-way rotating shaft, the outer surface of the one-way rotating shaft is rotatably connected to a driven gear, the inner surface of the driven gear is provided with a ratchet groove, the outer surface of the one-way rotating shaft is hingedly connected to a driven ratchet, the other end of the one-way rotating shaft is fixedly connected to a universal coupling, the other end of the universal coupling is fixedly connected to the driving rotating shaft, the outer surface of the driving rotating shaft is sleeved with a connecting belt, the other end of the connecting belt is sleeved with a driven rotating shaft, the outer surface of the driven rotating shaft is sleeved with a rotation control belt, and the outer surface of the rotation control belt is slidably connected with a belt limiting clip.

[0015] Preferably, the number of the rotating control arms is two, and the two rotating control arms are symmetrically distributed with the central axis of the working reamer as the axis of symmetry, the number of the driving chains is two, and the two driving chains are respectively installed on different sides of the driven gears on both sides, the rotating protrusion is slidingly connected to the inner surface of the rotating control groove, the driving chain is meshed with the driven gear, the ratchet groove is meshed with the driven ratchet, the driving rotating shaft and the driven rotating shaft both penetrate to the inner surface of the clamping claw, and the driving rotating shaft and the driven rotating shaft are both rotatably connected to the inner surface of the clamping claw, the number of the driven rotating shaft and the connecting belt on each clamping claw is two, and the belt limit clamp is fixedly connected to the outer surface of the clamping claw.

[0016] A method for using a reaming device for a plastic product comprises the following steps:

[0017] S1. Extend the cylindrical plastic pipe to be drilled from the feeding platform and wrap it with the clamping claws on both sides. At this time, start the driving cylinder to push the reaming drill linkage frame and the working reaming drill downward to realize reaming of the cylindrical plastic product;

[0018] S2. When it is necessary to bore holes equidistantly on a cylindrical plastic product at one end, adjust the rotating protrusion on the switching mechanism so that its protruding part is aligned with the direct control slot of the direct control arm. At this time, the reaming drill linkage frame is pressed down, which will drive the direct control arm to be pressed down through the rotating protrusion. At this time, the rotating control arm is not connected to the rotating protrusion and does not work. During the descent of the direct control arm, the delay pin will first move in the delay slot of the lower pressure beam and then contact the bottom and push the lower pressure beam downward, so that the clamping of the subsequent direct clamping mechanism and the push of the intermittent transmission mechanism are delayed, providing time for the drill bit of the working reamer to enter and exit the round plastic product. When the lower pressure beam is pressed down, it will drive the active lower pressure rod to be pressed down, and the active lower pressure rod pushes the rotating connecting rod through the driven connecting rod to flip it outward, and The driven push-pull rod connected to the other end of the rotating connecting rod will be squeezed inward by the rotating connecting rod, and drive the driven moving block and the clamping connecting arm to be squeezed inward, so as to further clamp the circular plastic product to prevent it from displacement and deformation during the process of the working reamer pressing down to reame the hole. The pressing action is converted into the action of squeezing from both sides through the four-rod. The driven moving block will only move inward, and when the pressing beam is at the bottom limit position, during the reaming process, if the cylindrical plastic product is laterally deformed due to the pressure on the top, it will push the clamping claws on both sides. Since the active pressing rod and the driven connecting rod are in the same line as the dead point at this time, the clamping claws cannot be pushed to achieve a self-locking effect. When the working reamer is recovered, the clamping claws are loosened, so that the bottom intermittent transmission mechanism can drive it to move.

[0019] S3. When the working reamer is pressed down to drill a hole, the driving cylinder drives the downward pressure beam to be pressed down, and the downward pressure beam pushes the track push-pull arm and the pull rod installation arm at the bottom forward. The track pull rod is installed on the pull rod installation arm. At this time, the track pull rod contacts the inclined surface of the track pawl on the track control belt, and the embedded slot connected to the pull rod installation arm can be pressed down by the reset spring of the bottom slot, so that the track pull rod will be pushed down by the track pawl and will not affect the track pawl. When the working reamer is recovered, the driving cylinder drives the downward pressure beam to rise, and the track pull rod is pulled back and stuck in the track The pawl is hooked in the arc groove. At this time, the track pulling rod will pull the track pawl and drive the track control belt to move, thereby driving the top transport track and the round plastic product to move, achieving an intermittent movement effect of not moving when reaming and moving when retracting. Since the time of each push and pull of the track push-pull arm and the pull rod installation arm is fixed, the limit fork screw rod and the pull rod limit fork are driven by the rotation of the control roller through the threaded transmission to achieve lateral movement, and the interval between the pull rod limit fork pushing forward and the pull rod installation arm retreating to pull the track pull rod is controlled, thereby controlling the distance of each intermittent transmission mechanism movement;

[0020] S4. When it is necessary to bore a hole on the circumference of a cylindrical plastic product at one end, adjust the rotating protrusion on the switching mechanism so that its protruding part is aligned with the rotating control groove of the rotating control arm. At this time, the downward pressure and upward movement of the reaming drill linkage frame will drive the rotating control arm to be pressed down and raised through the rotating protrusion. At this time, the direct-acting control arm is not connected to the rotating protrusion and does not work. During the vertical movement, the rotating control arm will drive the chain mounting frame connected to it and its internal active chain to move vertically. A one-way rotating shaft is installed on the top mounting plate through a rotating shaft mounting frame. When the active chain moves downward, it drives the driven gear outside the one-way rotating shaft to rotate. The driven gear is affected by the ratchet groove and the driven ratchet on the one-way rotating shaft. At this time, the driven ratchet will be pressed down and the driven gear cannot drive the one-way rotating shaft to rotate. When the active chain moves upward, the other side of the driven ratchet on the one-way rotating shaft cannot rotate downward, forcibly driving the one-way rotating shaft to follow The driven gear rotates and drives the active shaft on the clamping claw to rotate through the universal coupling. The active shaft drives the driven shaft through the connecting belt, and finally drives the external rotation control belt transmission. Since the active chains on both sides are respectively on different sides of the driven shafts on both sides, the directions of the driven gears on both sides are opposite. In this way, they can rotate in the same direction when transmitted to the rotation control belt on the clamping claw. After the direct-acting clamping mechanism is released, the rotation control belt is still attached to the surface of the cylindrical plastic product, and the cylindrical plastic product is driven to rotate through surface friction, so that the working reamer does not move when pressed down and rotates when rising, so as to realize intermittent rotation reaming of cylindrical plastic products. The rotation reaming mechanism is also provided with a delay part for the drill bit to enter and exit. If one side of the direct-acting control arm and the rotation control arm are opened on both sides of the switching mechanism, the working reamer moves and rotates at the same time when it rises, so as to realize spiral reaming.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] In the present invention, by setting up the direct-acting clamping mechanism and the intermittent transmission mechanism, during use, when the reaming drill bit part is pressed down to ream a hole, the direct-acting clamping mechanism will simultaneously clamp the cylindrical plastic product to prevent its position from shifting and deforming, and use the dead point position to increase the clamping stability during the clamping process. When the reaming drill bit part is recovered, the direct-acting clamping mechanism controls the clamping jaw part to loosen and start the intermittent transmission mechanism, so that the cylindrical plastic product that needs to be reamed is displaced, and the displacement distance is adjustable, so that the cylindrical plastic product can be reamed at the same interval on a straight line.

[0023] In the present invention, by setting up a rotating reaming mechanism, during use, when the reaming drill bit is partially recovered, the rotating reaming mechanism drives the conveyor belt inside the clamp through the transmission action of the gear rack, thereby causing the internal cylindrical product to rotate. When the reaming drill bit is pressed down again to ream a hole, the rotation stops, thereby realizing reaming of the cylindrical product in one circle.

[0024] In the present invention, the switching of the direct-acting clamping mechanism and the rotary reaming mechanism is realized by setting a switching mechanism. When only the direct-acting clamping mechanism is turned on, linear reaming is realized, and when only the rotary reaming mechanism is turned on, rotary reaming is realized. When both are turned on at the same time, reaming along a spiral path is realized, and various drilling methods are provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic side view of the overall structure of the present invention;

[0026] Figure 2 It is a three-dimensional structural schematic diagram of the reaming machine base, crawler support, top mounting plate, working reaming drill, and reaming drill linkage frame of the present invention;

[0027] Figure 3 It is a schematic side view of the internal structure of the present invention;

[0028] Figure 4 It is a schematic diagram of the structure of the mutual cooperation of the components of the direct-acting clamping mechanism of the present invention;

[0029] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0030] Figure 6 It is a three-dimensional structural schematic diagram of the four-rod mounting plate, the active downward pressing rod, the driven connecting rod, the rotating connecting rod, the driven push-pull rod, and the driven moving block of the present invention;

[0031] Figure 7 It is a three-dimensional structural schematic diagram of the transport crawler belt and crawler control belt of the present invention;

[0032] Figure 8 It is a schematic diagram of the three-dimensional structure of the lower pressure beam, the track push-pull arm, and the track pawl of the present invention;

[0033] Fig. 9 It is a three-dimensional structural schematic diagram of the pull rod installation arm, the pull rod sliding groove, and the crawler pull rod of the present invention;

[0034] Fig.10 It is a three-dimensional structural schematic diagram of the sliding embedded plate, the pull rod limit fork, the limit fork screw rod, and the control roller of the present invention;

[0035] Fig.11 It is a three-dimensional structural schematic diagram of the one-way rotating shaft, the universal coupling, and the clamping claw of the present invention;

[0036] Fig.12 It is a three-dimensional structural schematic diagram of the rotating cam, the direct-acting control arm, and the rotating control arm of the present invention;

[0037] Fig.13 It is a schematic diagram of the three-dimensional structure of the top mounting plate, the rotating shaft mounting frame, and the one-way rotating shaft of the present invention;

[0038] Fig.14 For the present invention Fig.13 Enlarged view of point B in the middle;

[0039] Fig.15 It is a three-dimensional structural schematic diagram of the one-way rotating shaft, the driven gear, the pawl groove, and the driven pawl of the present invention;

[0040] Fig.16 It is a three-dimensional structural schematic diagram of the rotating control arm and the chain mounting frame of the present invention.

[0041] In the figure: 1. base of the reamer; 11. feeding platform; 12. bottom mounting plate; 2. track mounting frame; 21. track support; 22. transport track; 23. top bracket; 3. top mounting plate; 31. reamer active slot; 32. top protective plate; 33. driving cylinder; 34. working reamer; 35. reamer linkage frame; 4. switching mechanism; 41. direct-acting base; 42. rotating convex block; 5. direct-acting clamping mechanism; 51. direct-acting control arm; 511. direct-acting control slot; 512. delay latch; 52. pressing beam; 521. delay slot; 53. four-rod mounting plate; 531. four-rod sliding slot; 532. limiting column; 54. active pressing rod; 541. driven connecting rod; 542. rotating connecting rod; 543. driven push-pull rod; 55. driven moving block; 56. clamping connecting arm; 6. intermittent transmission mechanism; 61. Track control belt; 62. Track pawl; 63. Track push-pull arm; 64. Tie rod mounting arm; 641. Tie rod sliding groove; 642. Track pulling rod; 65. Sliding embedded plate; 66. Tie rod limit fork; 661. Limit fork screw rod; 662. Control roller; 67. Embedded slot; 671. Spring mounting column; 672. Slot return spring; 7. Rotating reaming mechanism; 71. Rotating control arm; 7 11. Rotation control groove; 72. Chain mounting frame; 721. Active chain; 73. Rotation shaft mounting frame; 74. One-way rotation shaft; 741. Driven gear; 742. Ratchet groove; 743. Driven pawl; 75. Universal coupling; 76. Active rotation shaft; 761. Connecting belt; 762. Driven rotation shaft; 763. Rotation control belt; 764. Belt limit clamp; 8. Clamping claw; 81. Reamer enters the hole. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0043] See also Figures 1 to 16The present invention provides a technical solution: a reaming device for plastic products, comprising a reaming bed base 1, a crawler mounting frame 2 is fixedly connected to the outer surface of the reaming bed base 1, a top mounting plate 3 is fixedly connected to the top surface of the crawler mounting frame 2, a switching mechanism 4 is arranged on the outer surface of the top mounting plate 3, a direct-acting clamping mechanism 5 is arranged on the bottom surface of the switching mechanism 4, an intermittent transmission mechanism 6 is arranged on the bottom surface of the direct-acting clamping mechanism 5, a rotating reaming mechanism 7 is arranged on the bottom surface of the switching mechanism 4, a clamping claw 8 is fixedly connected to the outer surface of the direct-acting clamping mechanism 5, and the reaming bed base 1 is the bottom of the entire device. The supporting part installs the top crawler part through four symmetrically distributed crawler mounting frames 2 connected externally. The top mounting plate 3 is used to install the reaming and its lifting part on the top. The top mounting plate 3 and the reaming machine base 1 are fixed in a relative position and remain unchanged. The switching mechanism 4 is installed outside the reaming machine base 1 to adjust and control the direct-acting clamping mechanism 5, the intermittent transmission mechanism 6 and the rotating reaming mechanism 7. The direct-acting clamping mechanism 5 and the rotating reaming mechanism 7 are connected to the clamping claw 8. When the clamping claw 8 clamps the internal cylindrical plastic product, clamping and rotation are achieved. The intermittent transmission mechanism 6 realizes the movement of the cylindrical plastic product.

[0044] The top surface of the reamer base 1 is fixedly connected with a feeding platform 11, the top surface of the reamer base 1 is fixedly connected with a bottom mounting plate 12, the top surface of the crawler mounting frame 2 is fixedly connected with a crawler support 21, the outer surface of the crawler support 21 is slidably connected with a transport crawler 22, the top surface of the crawler mounting frame 2 is fixedly connected with a top bracket 23, the top surface of the top bracket 23 is fixedly connected to the bottom surface of the top mounting plate 3, the outer surface of the top mounting plate 3 is provided with a reamer active groove 31, and the top surface of the top mounting plate 3 is fixedly connected with a top bracket 23. The top surface of the top protective plate 32 is fixedly connected, the bottom surface of the top protective plate 32 is fixedly connected to the driving cylinder 33, the inner surface of the reaming drill movable groove 31 is slidably connected to the working reaming drill 34, the outer surface of the working reaming drill 34 is fixedly connected to the reaming drill linkage frame 35, the output end of the driving cylinder 33 is fixedly connected to the reaming drill linkage frame 35, the number of the clamping claws 8 is two, and the two clamping claws 8 are symmetrically distributed with the central axis of the working reaming drill 34 as the symmetry axis, the top surface of the clamping claw 8 is provided with a reaming drill entry hole 81, and the feeding platform 11 is used for The top of the track support 21 is a solid plane, and the transport crawler 22 plays a supporting role when it surrounds its surface, making the top transport crawler 22 flat. The top bracket 23 is used to hinge the bed base 1 and the top mounting plate 3 to fix their relative positions, and the working reamer 34 on the top mounting plate 3 is driven by the driving cylinder 33, and can move vertically in the reamer movable groove 31, and ream holes in the circular plastic product when pressed down, and press down the subsequent direct-acting clamping mechanism 5 and the rotating reaming mechanism 7 through the reamer linkage frame 35 connected to the outside of the working reamer 34, so that the direct-acting clamping mechanism 5 and the rotating reaming mechanism 7 work synchronously with the reaming of the working reamer 34, and the clamping claws 8 on both sides are used to place the circular plastic product inside to clamp it to prevent its displacement from affecting the reaming work, and a working reamer 34 is provided at the top for the working reamer 34 to extend into, and the bottom is open so that the bottom of the circular plastic product contacts the transport crawler 22, thereby driving the circular plastic product to move.

[0045] The switching mechanism 4 includes a direct-acting base 41, which is fixedly connected to the bottom surface of the reaming and drilling linkage frame 35. The bottom surface of the direct-acting base 41 is rotatably connected with a rotating protrusion 42. The reaming and drilling linkage frame 35 is pressed downward under the influence of the driving cylinder 33, driving the bottom rotating protrusion 42 to press the direct-acting control arm 51 on the direct-acting clamping mechanism 5 or the rotating control arm 71 on the rotating reaming mechanism 7. The direct-acting control arm 51 and the rotating control arm 71 are both provided with a semicircular control groove. The rotating protrusion 42 is cylindrical and matches the control groove, but the top and bottom of one side are both protruding. When the protruding surface rotates to the control groove on one side, the control arm on that side can be clamped up and down, thereby driving the control arm on that side to move up and down together.

[0046] There are two direct-acting bases 41, and the two direct-acting bases 41 are symmetrically distributed with the central axis of the working reamer 34 as the axis of symmetry. The symmetrical direct-acting bases 41 are installed with symmetrical rotating protrusions 42, which control the direct-acting control arm 51 and the rotating control arm 71 on both sides respectively. When the rotating protrusions 42 drive the direct-acting control arm 51 to move, the direct-acting clamping mechanism 5 and the intermittent transmission mechanism 6 are started to realize intermittent reaming on a straight line. When the rotating protrusions 42 drive the rotating control arm 71 to move, the rotating reaming mechanism 7 is started to realize intermittent reaming on a circle. When the rotating protrusions 42 on both sides are respectively connected to the direct-acting control arm 51 and the rotating control arm 71, they can intermittently rotate while moving directly to realize reaming holes distributed in a spiral line.

[0047] The direct-acting clamping mechanism 5 includes a direct-acting control arm 51, which is slidably connected to the outer surface of the rotating protrusion 42, and a direct-acting control groove 511 is provided on the outer surface of the direct-acting control arm 51, and a delay latch 512 is fixedly connected to the bottom surface of the direct-acting control arm 51, and a downward pressing beam 52 is slidably connected to the bottom surface of the direct-acting control arm 51, and a delay slot 521 is provided on the outer surface of the downward pressing beam 52, and a four-rod mounting plate 53 is fixedly connected to the outer surface of the hinge base 1, and a four-rod sliding groove 531 is provided on the outer surface of the four-rod sliding groove 531, and a limited position column 532 is fixedly connected to the inner surface of the four-rod sliding groove 531, and the downward pressing beam 52 is fixedly connected to the outer surface of the hinge base 1. The outer surface of the beam 52 is fixedly connected with an active downward pressing rod 54, and the two ends of the active downward pressing rod 54 are hingedly connected with a driven connecting rod 541, and the other end of the driven connecting rod 541 is hingedly connected with a rotating connecting rod 542, and the other end of the rotating connecting rod 542 is hingedly connected with a driven push-pull rod 543, and the other end of the driven push-pull rod 543 is hingedly connected with a driven moving block 55, and the outer surface of the driven moving block 55 is fixedly connected with a clamping connecting arm 56. Through the setting of the direct-acting clamping mechanism 5, during use, the direct-acting control arm 51 is connected to the switching mechanism 4 through the direct-acting control slot 511. When the driving cylinder 33 drives the direct-acting control arm 51 to press down When the pressing beam 52 is pressed down, the delay latch 512 will first move in the delay slot 521 of the pressing beam 52 and then contact the bottom and push the pressing beam 52 downward, so that the subsequent clamping and pushing parts are delayed to provide time for the drill bit of the working reamer 34 to enter and exit the round plastic product. When the pressing beam 52 is pressed down, the active pressing rod 54 will be pressed down, and the active pressing rod 54 will push the rotating connecting rod 542 through the driven connecting rod 541 to turn it outward, and the driven push-pull rod 543 connected to the other end of the rotating connecting rod 542 will be squeezed inward by the rotating connecting rod 542, and drive the driven moving block 55 and the clamping connecting arm 56 to be squeezed inward, so that the working reamer 34 can be pressed down. During the process of pressing down and reaming, the circular plastic product is further clamped to prevent it from displacement and deformation. The pressing action is converted into an action of squeezing from both sides through four rods. The driven moving block 55 will only move inward, and when the pressing beam 52 is at the bottom limit position, during the reaming process, if the cylindrical plastic product is laterally deformed due to the pressure on the top and pushes the clamping claws 8 on both sides, the active pressing rod 54 and the driven connecting rod 541 are in the same line as the dead point position at this time, the clamping claws 8 cannot be pushed to achieve a self-locking effect. When the working reamer 34 is recovered, the entire mechanism is reset to drive the clamping claws 8 to loosen, so that the bottom intermittent transmission mechanism 6 can drive it to move.

[0048] The rotating protrusion 42 is slidably connected to the inner surface of the direct-acting control groove 511, the delay pin 512 is slidably connected to the inner surface of the delay slot 521, the limit column 532 passes through the lower pressure beam 52, and the limit column 532 is slidably connected to the inner surface of the lower pressure beam 52, the rotating connecting rod 542 is rotatably connected to the outer surface of the four-bar mounting plate 53, the number of the driven moving blocks 55 is two, and the two driven moving blocks 55 are symmetrically distributed with the central axis of the working reamer 34 as the symmetry axis, the clamping connecting arm 56 is fixedly connected to the outer surface of the clamping claw 8, the rotating protrusion 42 engages the direct-acting control arm 51 through the upper and lower protruding parts, the middle cylindrical part passes through the direct-acting control groove 511, and the non-protruding side of the rotating protrusion 42 can be moved from the direct-acting control groove 5 11, the delay pin 512 and the delay slot 521 realize the movement of the working reamer 34 and the movement of the clamping part of the direct-acting clamping mechanism 5 with some interval delay, so as to prevent the working reamer 34 from moving before it extends out from the inside of the plastic product. The active pressing rod 54, the driven connecting rod 541, the rotating connecting rod 542 and the driven push-pull rod 543 form a four-bar structure. The active pressing rod 54 is pressed down, and the driven connecting rod 541 is used to connect and generate a lateral force. The rotating connecting rod 542 changes the transmission direction of the lateral force and pushes and pulls the driven moving block 55 from both sides through the driven push-pull rod 543. The driven moving block 55 slides in the four-bar sliding groove 531, and the limiting column 532 limits the moving path of the pressing beam 52 to prevent its position from shifting when it is pressed down.

[0049] The intermittent transmission mechanism 6 includes a crawler control belt 61, which is fixedly connected to the outer surface of the transport crawler 22, and a crawler pawl 62 is fixedly connected to the outer surface of the crawler control belt 61. The two ends of the lower pressure beam 52 are rotatably connected to crawler push-pull arms 63, and the other end of the crawler push-pull arm 63 is hingedly connected to a pull rod mounting arm 64. The outer surface of the pull rod mounting arm 64 is provided with a pull rod sliding groove 641, and the inner surface of the pull rod sliding groove 641 is slidably connected to a crawler pull rod 642. The outer surface of the crawler push-pull arm 63 is connected to the outer surface of the crawler push-pull arm 63. The side surface is fixedly connected with a sliding embedded plate 65, the outer surface of the pull rod mounting arm 64 is slidably connected with a pull rod limit fork 66, the outer surface of the pull rod limit fork 66 is fixedly connected with a limit fork screw rod 661, the outer surface of the limit fork screw rod 661 is threadedly connected with a control roller 662, the outer surface of the sliding embedded plate 65 is slidably connected with an embedded slot 67, the bottom surface of the embedded slot 67 is fixedly connected with a spring mounting column 671, the outer surface of the spring mounting column 671 is sleeved with a slot reset spring 672, and the outer surface of the spring mounting column 671 is intermittently connected with a slot reset spring 672. The transmission mechanism 6 is set up. During use, if the direct-acting clamping mechanism 5 is started, the lower pressure beam 52 will move and drive the pull rod mounting arm 64 to use the track pulling rod 642 to push and pull the track ratchet 62. When pushing, due to contact with the inclined surface and the action of the spring mounting column 671, it will slide to the bottom and have no effect on the track ratchet 62. When pulled back, it will be hooked by the track ratchet 62 and drive the track control belt 61 to move, so that it only moves when the lower pressure beam 52 is recovered, and it is linked with the work of the working reamer 34, and the control roller 662 is changed. By changing the position of the pull rod limit fork 66, the track pulling rod 642 will move only when it is pushed by the pull rod limit fork 66, thereby changing the interval between the track pulling rod 642 pushing and pulling the track ratchet 62, and realizing the control of the moving interval. Since the intermittent movement requires a long moving stroke, and the clamping control part of the top direct-acting clamping mechanism 5 requires a short stroke, and the two movements are controlled by the direct-acting control arm 51 at the same time, the transmission ratio of the four-rod part on the direct-acting clamping mechanism 5 can greatly reduce the displacement distance, so that it is not affected by the large displacement of the intermittent transmission mechanism 6.

[0050] The track pawls 62 are equidistantly distributed along the outer surface of the track control, the number of track pulling rods 642 is one, and both ends of the track pulling rod 642 penetrate into the inner surface of the pull rod sliding groove 641 and are slidably connected to its inner wall, the track pulling rod 642 is slidably connected to the outer surface of the track pawl 62, the pull rod limiting fork 66 is slidably connected to the outer surface of the track pulling rod 642, the limiting fork screw rod 661 penetrates into the interior of the pull rod mounting arm 64 and is slidably connected to its inner wall, the control roller 662 is rotatably connected to the outer surface of the pull rod mounting arm 64, the spring mounting column 671 penetrates the bottom mounting plate 12 and is slidably connected thereto, and multiple track pawls 62 enable the track pulling rod 642 to contact the track pawl 62 at any position, and the track pulling rod 642 will slide a certain distance in the pull rod sliding groove 641 in advance before the track pawl 62 can be pushed and pulled, and the sliding distance is controlled by the pull rod limiting fork 66.

[0051] The rotary reaming mechanism 7 includes a rotary control arm 71, the outer surface of the rotary control arm 71 is slidably connected to the outer surface of the rotary protrusion 42, the outer surface of the rotary control arm 71 is provided with a rotary control groove 711, the other end of the rotary control arm 71 is fixedly connected to a chain mounting frame 72, the outer surface of the chain mounting frame 72 is fixedly connected to a driving chain 721, the inner surface of the top mounting plate 3 is fixedly connected to a shaft mounting frame 73, the inner surface of the shaft mounting frame 73 is rotatably connected to a one-way shaft 74, the outer surface of the one-way shaft 74 is rotatably connected to a driven gear 741, the inner surface of the driven gear 741 is fixedly connected to the outer surface of the one-way shaft 74, and the inner surface of the driven gear 741 is fixedly connected to the outer surface of the one-way shaft 74. A pawl groove 742 is provided on the side surface, a driven pawl 743 is hingedly connected to the outer surface of the one-way rotating shaft 74, a universal coupling 75 is fixedly connected to the other end of the one-way rotating shaft 74, a driving rotating shaft 76 is fixedly connected to the other end of the universal coupling 75, a connecting belt 761 is sleeved on the outer surface of the driving rotating shaft 76, a driven rotating shaft 762 is sleeved on the other end of the connecting belt 761, a rotation control belt 763 is sleeved on the outer surface of the driven rotating shaft 762, a belt limiting clamp 764 is slidably connected to the outer surface of the rotation control belt 763, and the reaming mechanism 7 is set in the process of use. The mechanism 4 is connected with the rotary reaming mechanism 7, and when the working reaming drill 34 is pressed down, the rotary control arm 71 is driven to move vertically. A structure similar to the delay latch 512 and the delay slot 521 is also provided between the rotary control arm 71 and the chain mounting frame 72 to generate a delay. The rotary control arm 71 drives the active chain 721 to move vertically to drive the driven gear 741 to rotate. The driven gear 741 is connected to the one-way shaft 74 through a ratchet structure, so that the driven gear 741 can only drive the one-way shaft 74 to rotate in one direction. When the driven gear 741 is reversed, the one-way shaft 74 does not move, and controls the subsequent universal joint. The rotation control belt 763 on the shaft 75 and the clamping claw 8 rotates to realize the flipping of the cylindrical plastic product. The one-way shaft 74 is installed on the top mounting plate 3 through the shaft mounting frame 73, so that the position of the one-way shaft 74 and the driven gear 741 outside it relative to the top mounting plate 3 always remains unchanged. Only the rotation control arm 71 and the chain mounting frame 72 will move vertically. When the working reamer 34 is pressed down, the one-way shaft 74 is stationary and is used to ream holes in the cylindrical plastic product. When the working reamer 34 rises, the one-way shaft 74 rotates to change the next reaming position, thereby realizing reaming of a cylindrical plastic product in one circle.

[0052] There are two rotating control arms 71, and the two rotating control arms 71 are symmetrically distributed with the central axis of the working reamer 34 as the symmetry axis. There are two driving chains 721, and the two driving chains 721 are respectively installed on different sides of the driven gears 741 on both sides. The rotating protrusion 42 is slidably connected with the inner surface of the rotating control groove 711, the driving chain 721 is meshed with the driven gear 741, the pawl groove 742 is meshed with the driven pawl 743, the driving shaft 76 and the driven shaft 762 are both penetrated to the inner surface of the clamping claw 8, and the driving shaft 76 and the driven shaft 762 are both connected to the inner surface of the clamping claw 8. The surface is rotated and connected, and there are two driven shafts 762 and connecting belts 761 on each clamping claw 8. The belt limit clamp 764 is fixedly connected to the outer surface of the clamping claw 8. The symmetrical rotation control arm 71 distributes and controls the rotation control belts 763 on the two clamping claws 8. Since the driven gears 741 are symmetrically distributed, when the driving shaft 76 is driven to rotate through the universal coupling 75, it will cause the driving shafts 76 on both sides to turn in opposite directions. It is necessary to set driving chains 721 on different sides of the driven gears 741 on both sides so that the driving shafts 76 turn in the same direction, thereby driving the internal cylindrical plastic product to rotate.

[0053] In this embodiment, Figure 1 As shown, the switching mechanism 4, the direct-acting clamping mechanism 5, the intermittent transmission mechanism 6 and the rotary reaming mechanism 7 are installed on the reaming machine base 1, the crawler mounting frame 2 and the top mounting plate 3, and some parts are wrapped inside;

[0054] In this embodiment, Figure 2 As shown, the top bracket 23 is used to reamer the bed base 1 and the top mounting plate 3 so that the relative positions between them are fixed, and the working reamer 34 on the top mounting plate 3 is driven by the driving cylinder 33 and can move vertically in the reamer movable groove 31, and the reamer linkage frame 35 connected to the outside of the working reamer 34 presses down the subsequent direct-acting clamping mechanism 5 and the rotary reaming mechanism 7 to work;

[0055] In this embodiment, Figure 3 As shown, the clamping claw 8 is placed on the transport crawler 22 and is connected to the direct-acting clamping mechanism 5 and the rotary reaming mechanism 7 at the same time. The clamping claw 8 is displaced by the direct-acting clamping mechanism 5 and is connected using a universal coupling 75 to adapt;

[0056] In this embodiment, Figure 4 As shown, the direct-acting control arm 51 is connected to the switching mechanism 4 through the direct-acting control slot 511. When the driving cylinder 33 drives the direct-acting control arm 51 to press down, the subsequent pressing beam 52 and the four-bar part are driven to move;

[0057] In this embodiment, Figure 5As shown, the delay pin 512 first moves in the delay slot 521 of the pressing beam 52 and then contacts the bottom and pushes the pressing beam 52 downward, so that the subsequent clamping and pushing parts are delayed to provide time for the drill bit of the working reamer 34 to enter and exit the round plastic product;

[0058] In this embodiment, Figure 6 As shown, when the pressing beam 52 is at the bottom limit position, since the active pressing rod 54 and the driven connecting rod 541 are in the same line as the dead point position, the driven moving block 55 cannot be pushed to achieve a self-locking effect;

[0059] In this embodiment, Figure 7 As shown, the track control belt 61 is installed on the surface of the transport track 22. When the track pawl 62 drives the track control belt 61 to rotate, the transport track 22 also rotates;

[0060] In this embodiment, Figure 8 As shown, when the lower pressure beam 52 moves, it drives the pull rod mounting arm 64 to push and pull the track pawl 62 using the track pulling rod 642;

[0061] In this embodiment, Fig. 9 As shown, when the track pulling rod 642 is pushed, it will slide to the bottom due to contact with the inclined surface and the action of the spring mounting column 671, and will have no effect on the track pawl 62. When it is pulled back, it will be hooked by the track pawl 62 and drive the track control belt 61 to move, so that it can only move when the lower pressure beam 52 is recovered;

[0062] In this embodiment, Fig.10 As shown, by controlling the rotation of the control roller 662, the limit fork screw rod 661 and the pull rod limit fork 66 are driven through thread transmission to achieve lateral movement;

[0063] In this embodiment, Fig.11 As shown, the one-way rotating shaft 74 is connected to the clamping claw 8 through the universal coupling 75 and drives the internal structure to rotate;

[0064] In this embodiment, Fig.12 As shown, both the linear control arm 51 and the rotating control arm 71 are provided with a semicircular control groove, and the rotating protrusion 42 is cylindrical and matches the control groove, but the top and bottom of one side are both protruding. When the protruding surface rotates to the control groove on one side, the control arm on this side can be clamped up and down, and the other side can pass through the control groove, thereby switching different control arms to move up and down together;

[0065] In this embodiment, Fig.13 As shown, the one-way rotating shaft 74 is mounted on the top mounting plate 3 through the rotating shaft mounting frame 73, so that the positions of the one-way rotating shaft 74 and the driven gear 741 outside thereof relative to the top mounting plate 3 remain unchanged;

[0066] In this embodiment, Fig.14 As shown, the driving shaft 76 drives the driven shaft 762 through the connecting belt 761, and finally drives the external rotation control belt 763 for transmission;

[0067] In this embodiment, Fig.15 As shown, the driven gear 741 is connected to the one-way rotating shaft 74 through a ratchet structure, so that the driven gear 741 can only drive the one-way rotating shaft 74 to rotate in one direction, and the one-way rotating shaft 74 does not move when the driven gear 741 reverses;

[0068] In this embodiment, Fig.16 As shown, a structure similar to the delay pin 512 and the delay slot 521 is also provided between the rotating control arm 71 and the chain mounting frame 72 to generate delay.

[0069] A method for using a reaming device for a plastic product comprises the following steps:

[0070] S1, insert the cylindrical plastic pipe to be drilled from the feeding platform 11, and wrap it with the clamping claws 8 on both sides, then start the driving cylinder 33 to push the reaming drill linkage frame 35 and the working reaming drill 34 downward to realize reaming of the cylindrical plastic product;

[0071] S2. When it is necessary to make equidistant reaming holes on a cylindrical plastic product at one end, adjust the rotating protrusion 42 on the switching mechanism 4 so that its protruding part is aligned with the direct-acting control groove 511 of the direct-acting control arm 51. At this time, the reaming drill linkage frame 35 presses down to drive the direct-acting control arm 51 to press down through the rotating protrusion 42. When the pressing beam 52 is pressed down, it drives the active pressing rod 54 to press down. The active pressing rod 54 pushes the rotating connecting rod 542 through the driven connecting rod 541 to turn it outward. The driven push-pull rod 543 connected to the other end of the rotating connecting rod 542 is squeezed inward by the rotating connecting rod 542, and drives the driven moving block 55 and the clamping connecting arm 56 to be squeezed inward. When the working reaming drill 34 is recovered, the clamping claw 8 is released so that the bottom intermittent transmission mechanism 6 can drive it to move.

[0072] S3, when the working reamer 34 is pressed down to bore a hole, the driving cylinder 33 drives the pressing beam 52 to be pressed down, and the pressing beam 52 pushes the track push-pull arm 63 and the pull rod installation arm 64 at the bottom forward, and the track pulling rod 642 is installed on the pull rod installation arm 64. At this time, the track pulling rod 642 is pushed downward by the track ratchet 62, so that the track ratchet 62 is not affected. When the working reamer 34 is recovered, the driving cylinder 33 drives the pressing beam 52 to rise, and the track pulling rod 642 is pulled back and stuck in the arc groove of the track ratchet 62 and hooked. At this time, the track pulling rod 642 will pull the track ratchet 62 and drive the track control belt 61 to move, thereby driving the top transport crawler 22 and the round plastic product to move;

[0073] S4, the downward pressure and upward movement of the reamer linkage frame 35 will drive the rotating control arm 71 to be pressed down and raised through the rotating protrusion 42. The rotating control arm 71 will drive the chain mounting frame 72 connected thereto and its internal active chain 721 to move vertically during the vertical movement. The one-way rotating shaft 74 is installed on the top mounting plate 3 through the rotating shaft mounting frame 73. When the active chain 721 moves downward, it drives the driven gear 741 outside the one-way rotating shaft 74 to rotate. The one-way rotating shaft 74 can only rotate in one direction, and drives the active rotating shaft 76 on the clamping claw 8 to rotate through the universal coupling 75. The active rotating shaft 76 drives the driven rotating shaft 762 through the connecting belt 761, and finally drives the external rotating control belt 763 for transmission.

[0074] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A reaming device for plastic products, comprising a reaming machine base (1), characterized in that: The outer surface of the reaming machine base (1) is fixedly connected to a crawler mounting frame (2), the top surface of the crawler mounting frame (2) is fixedly connected to a top mounting plate (3), the outer surface of the top mounting plate (3) is provided with a switching mechanism (4), the bottom surface of the switching mechanism (4) is provided with a direct-acting clamping mechanism (5), the bottom surface of the direct-acting clamping mechanism (5) is provided with an intermittent transmission mechanism (6), the bottom surface of the switching mechanism (4) is provided with a rotary reaming mechanism (7), and the outer surface of the direct-acting clamping mechanism (5) is fixedly connected to a clamping claw (8); The top surface of the reamer base (1) is fixedly connected to a feeding platform (11), the top surface of the reamer base (1) is fixedly connected to a bottom mounting plate (12), the top surface of the crawler mounting frame (2) is fixedly connected to a crawler support (21), the outer surface of the crawler support (21) is slidably connected to a transport crawler (22), the top surface of the crawler mounting frame (2) is fixedly connected to a top bracket (23), the top surface of the top bracket (23) is fixedly connected to the bottom surface of the top mounting plate (3), the outer surface of the top mounting plate (3) is provided with a reamer active groove (31), and the top mounting plate The top surface of the reamer (3) is fixedly connected to a top protective plate (32), the bottom surface of the top protective plate (32) is fixedly connected to a driving cylinder (33), the inner surface of the reamer movable groove (31) is slidably connected to a working reamer (34), the outer surface of the working reamer (34) is fixedly connected to a reamer linkage frame (35), the output end of the driving cylinder (33) is fixedly connected to the reamer linkage frame (35), the number of the clamping claws (8) is two, and the two clamping claws (8) are symmetrically distributed with the central axis of the working reamer (34) as the symmetry axis, and the top surface of the clamping claw (8) is provided with a reamer entry hole (81); The direct-acting clamping mechanism (5) comprises a direct-acting control arm (51), the direct-acting control arm (51) is slidably connected to the outer surface of the rotating protrusion (42), the outer surface of the direct-acting control arm (51) is provided with a direct-acting control groove (511), the bottom surface of the direct-acting control arm (51) is fixedly connected with a delay pin (512), the bottom surface of the direct-acting control arm (51) is slidably connected with a downward pressure beam (52), the outer surface of the downward pressure beam (52) is provided with a delay slot (521), the outer surface of the hinge base (1) is fixedly connected with a four-rod mounting plate (53), and the outer surface of the four-rod mounting plate (53) is provided with a four-rod sliding plate. The inner surface of the four-bar sliding slot (531) is fixedly connected to a limit column (532), the outer surface of the down-pressing beam (52) is fixedly connected to an active down-pressing rod (54), both ends of the active down-pressing rod (54) are hingedly connected to a driven connecting rod (541), the other end of the driven connecting rod (541) is hingedly connected to a rotating connecting rod (542), the other end of the rotating connecting rod (542) is hingedly connected to a driven push-pull rod (543), the other end of the driven push-pull rod (543) is hingedly connected to a driven moving block (55), and the outer surface of the driven moving block (55) is fixedly connected to a clamping connecting arm (56); The intermittent transmission mechanism (6) includes a track control belt (61), the track control belt (61) is fixedly connected to the outer surface of the transport track (22), the outer surface of the track control belt (61) is fixedly connected to a track pawl (62), the two ends of the lower pressure beam (52) are rotatably connected to track push-pull arms (63), the other end of the track push-pull arm (63) is hingedly connected to a pull rod mounting arm (64), the outer surface of the pull rod mounting arm (64) is provided with a pull rod sliding groove (641), the inner surface of the pull rod sliding groove (641) is slidably connected to a track pulling rod (642), the track push-pull arm The outer surface of (63) is fixedly connected with a sliding embedded plate (65), the outer surface of the pull rod mounting arm (64) is slidably connected with a pull rod limiting fork (66), the outer surface of the pull rod limiting fork (66) is fixedly connected with a limiting fork screw rod (661), the outer surface of the limiting fork screw rod (661) is threadedly connected with a control roller (662), the outer surface of the sliding embedded plate (65) is slidably connected with an embedded slot (67), the bottom surface of the embedded slot (67) is fixedly connected with a spring mounting column (671), and the outer surface of the spring mounting column (671) is sleeved with a slot return spring (672).

2. A reaming device for plastic products according to claim 1, characterized in that: The switching mechanism (4) comprises a direct-acting base (41), the direct-acting base (41) being fixedly connected to the bottom surface of the reamer-drill linkage frame (35), and a rotating protrusion (42) being rotatably connected to the bottom surface of the direct-acting base (41); The number of the direct-acting bases (41) is two, and the two direct-acting bases (41) are symmetrically distributed with the central axis of the working reamer (34) as the symmetry axis.

3. A reaming device for plastic products according to claim 1, characterized in that: The inner surface of the direct-acting control groove (511) is slidably connected to the rotating protrusion (42), the delay pin (512) is slidably connected to the inner surface of the delay slot (521), the limit column (532) passes through the lower pressure beam (52), and the limit column (532) is slidably connected to the inner surface of the lower pressure beam (52), the rotating connecting rod (542) is rotatably connected to the outer surface of the four-bar mounting plate (53), the number of the driven moving blocks (55) is two, and the two driven moving blocks (55) are symmetrically distributed with the central axis of the working reamer (34) as the symmetry axis, and the clamping connecting arm (56) is fixedly connected to the outer surface of the clamping claw (8).

4. A reaming device for plastic products according to claim 1, characterized in that: The track pawl (62) is evenly distributed along the outer surface of the track control, the number of the track pulling rod (642) is one, and both ends of the track pulling rod (642) pass through the inner surface of the pull rod sliding groove (641) and are slidably connected to its inner wall, the track pulling rod (642) is slidably connected to the outer surface of the track pawl (62), the pull rod limiting fork (66) is slidably connected to the outer surface of the track pulling rod (642), the limiting fork screw (661) passes through the interior of the pull rod mounting arm (64) and is slidably connected to its inner wall, the control roller (662) is rotationally connected to the outer surface of the pull rod mounting arm (64), and the spring mounting column (671) passes through the bottom mounting plate (12) and is slidably connected to it.

5. A reaming device for plastic products according to claim 1, characterized in that: The rotary reaming mechanism (7) comprises a rotary control arm (71), the outer surface of the rotary control arm (71) is slidably connected to the outer surface of the rotary protrusion (42), the outer surface of the rotary control arm (71) is provided with a rotary control groove (711), the other end of the rotary control arm (71) is fixedly connected to a chain mounting frame (72), the outer surface of the chain mounting frame (72) is fixedly connected to a driving chain (721), the inner surface of the top mounting plate (3) is fixedly connected to a rotating shaft mounting frame (73), the inner surface of the rotating shaft mounting frame (73) is rotatably connected to a one-way rotating shaft (74), and the outer surface of the one-way rotating shaft (74) is rotatably connected to a driven gear (74 1), a ratchet groove (742) is provided on the inner surface of the driven gear (741), a driven ratchet (743) is hingedly connected to the outer surface of the one-way rotating shaft (74), the other end of the one-way rotating shaft (74) is fixedly connected to a universal coupling (75), the other end of the universal coupling (75) is fixedly connected to a driving rotating shaft (76), the outer surface of the driving rotating shaft (76) is sleeved with a connecting belt (761), the other end of the connecting belt (761) is sleeved with a driven rotating shaft (762), the outer surface of the driven rotating shaft (762) is sleeved with a rotation control belt (763), and the outer surface of the rotation control belt (763) is slidably connected to a belt limiting clamp (764).

6. A reaming device for plastic products according to claim 5, characterized in that: The number of the rotation control arms (71) is two, and the two rotation control arms (71) are symmetrically distributed with the central axis of the working reamer (34) as the symmetry axis. The number of the active chains (721) is two, and the two active chains (721) are respectively installed on different sides of the driven gears (741) on both sides. The inner surface of the rotation control groove (711) is slidably connected to the rotation protrusion (42), the active chain (721) is meshed with the driven gear (741), and the ratchet The claw groove (742) meshes with the driven ratchet (743); the driving rotating shaft (76) and the driven rotating shaft (762) both penetrate the inner surface of the clamping claw (8); the driving rotating shaft (76) and the driven rotating shaft (762) are both rotatably connected to the inner surface of the clamping claw (8); the number of the driven rotating shaft (762) and the connecting belt (761) on each clamping claw (8) is two; and the belt limiting clamp (764) is fixedly connected to the outer surface of the clamping claw (8).

7. The method for using the reaming device for plastic products according to claim 1, comprising the following steps: S1, inserting a cylindrical plastic pipe to be drilled from the feeding platform (11) and wrapping it with the clamping claws (8) on both sides, then starting the driving cylinder (33) to push the reaming drill linkage frame (35) and the working reaming drill (34) downward to realize reaming of the cylindrical plastic product; S2. When it is necessary to reame holes at equal intervals on a cylindrical plastic product at one end, adjust the rotating protrusion (42) on the switching mechanism (4) so ​​that its protruding portion is aligned with the direct-acting control slot (511) of the direct-acting control arm (51). At this time, the reaming drill linkage frame (35) is pressed down to drive the direct-acting control arm (51) to be pressed down through the rotating protrusion (42). At this time, the rotating control arm (71) is not connected to the rotating protrusion (42) and does not work. During the descent of the direct-acting control arm (51), the delay latch (512) first moves in the delay slot (521) of the pressing beam (52) and then contacts the bottom and pushes the pressing beam (52) downward, so that the clamping of the subsequent direct-acting clamping mechanism (5) and the pushing of the intermittent transmission mechanism (6) are delayed, providing time for the drill bit of the working reaming drill (34) to enter and exit the circular plastic product. When the pressing beam (52) is pressed down, it drives the active pressing rod (54) to be pressed down. The active pressing rod (54) is connected to the driven connecting rod (5 41) pushing the rotating connecting rod (542) to turn it outward, the driven push-pull rod (543) connected to the other end of the rotating connecting rod (542) will be squeezed inward by the rotating connecting rod (542), and drive the driven moving block (55) and the clamping connecting arm (56) to be squeezed inward, so as to further clamp the circular plastic product to prevent displacement and deformation during the process of the working reamer (34) pressing down to reame the hole, and convert the pressing action into a pressing action from both sides through the four rods, and when the pressing beam (52) is at the bottom limit position, during the reaming process, if the cylindrical plastic product is laterally deformed due to the pressure on the top and pushes the clamping claws (8) on both sides, since the active pressing rod (54) and the driven connecting rod (541) are in the same line as the dead point position at this time, the clamping claws (8) cannot be pushed to achieve a self-locking effect, and when the working reamer (34) is recovered, the clamping claws (8) are loosened, so that the bottom intermittent transmission mechanism (6) can drive it to move; S3. When the working reamer (34) is pressed down to drill a hole, the driving cylinder (33) drives the pressing beam (52) to be pressed down, and the pressing beam (52) pushes the track push-pull arm (63) and the pull rod mounting arm (64) at the bottom forward, and the track pulling rod (642) is installed on the pull rod mounting arm (64). At this time, the track pulling rod (642) contacts the inclined surface of the track pawl (62) on the track control belt (61), and the embedded slot (67) connected to the pull rod mounting arm (64) can be pressed down under the influence of the bottom slot reset spring (672), so that the track pulling rod (642) is pushed downward by the track pawl (62) and does not affect the track pawl (62). When the working reamer (34) is recovered, the driving cylinder (33) drives the pressing beam (52) to rise, and the track The pulling rod (642) is pulled back and stuck in the arc groove of the track pawl (62) and hooked. At this time, the track pulling rod (642) pulls the track pawl (62) and drives the track control belt (61) to move, thereby driving the top transport track (22) and the round plastic product to move, thereby achieving an intermittent movement effect in which the track push-pull arm (63) and the pull rod installation arm (64) do not move when reaming and move when retracting. Since the time of each push and pull of the track push-pull arm (63) and the pull rod installation arm (64) is fixed, the limit fork screw rod (661) and the pull rod limit fork (66) are driven by the rotating control roller (662) through the threaded transmission to achieve lateral movement, and the interval between the pull rod limit fork (66) pushing forward and the pull rod installation arm (64) pulling back the track pulling rod (642) is controlled, thereby controlling the distance of each intermittent transmission mechanism (6) moving; S4. When it is necessary to drill a hole on the circumference of a cylindrical plastic product at one end, adjust the rotating protrusion (42) on the switching mechanism (4) so ​​that its protruding portion is aligned with the rotating control groove (711) of the rotating control arm (71). At this time, the reaming and drilling linkage frame (35) is pressed down and raised, which drives the rotating control arm (71) to be pressed down and raised through the rotating protrusion (42). At this time, the direct-acting control arm (51) is not connected to the rotating protrusion (42) and does not work. The rotating control arm (71) drives the chain mounting frame (72) connected thereto and its internal active chain (721) to move vertically during the vertical movement. The one-way rotating shaft (74) is installed on the top mounting plate (3) through the rotating shaft mounting frame (73). When the driving chain (721) moves downward, the driven gear (741) outside the one-way rotating shaft (74) is driven to rotate. The driven gear (741) is affected by the pawl groove (742) and the driven pawl (743) on the one-way rotating shaft (74). At this time, the driven pawl (743) is pressed down and the driven gear (741) cannot drive the one-way rotating shaft (74) to rotate. When the driving chain (721) moves upward, the other side of the driven pawl (743) on the one-way rotating shaft (74) cannot The downward rotation forces the one-way rotating shaft (74) to rotate along with the driven gear (741), and drives the driving rotating shaft (76) on the clamping claw (8) to rotate through the universal coupling (75). The driving rotating shaft (76) drives the driven rotating shaft (762) through the connecting belt (761), and finally drives the external rotation control belt (763) for transmission. Since the driving chains (721) on both sides are respectively located on different sides of the driven rotating shaft (762) on both sides, the rotation directions of the driven gears (741) on both sides are opposite, so that when the rotation direction is transmitted to the rotation control belt (763) on the clamping claw (8), they can be in the same direction. The rotary control belt (763) is still attached to the surface of the cylindrical plastic product after the direct-acting clamping mechanism (5) is released, and the cylindrical plastic product is driven to rotate through surface friction, so that the working reamer (34) does not move when pressed down and rotates when rising, thereby realizing intermittent rotary reaming of the cylindrical plastic product. The rotary reaming mechanism (7) is also provided with a delay portion for the drill bit to enter and exit. If the switching mechanism (4) opens one side of the direct-acting control arm (51) and the rotary control arm (71) respectively, the working reamer (34) moves and rotates simultaneously when rising, thereby realizing spiral reaming.

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