Automatic assembly mechanism for antenna tube production

Abstract

The application relates to the technical field of assembling machine tools, in particular to an automatic assembling mechanism for antenna pipe production. The automatic assembling mechanism comprises a feeding device, a conveying device, a hole shrinking device, a waste cutting device, a reed assembling device, a butt joint device, a station moving device and a punching device; the punching device comprises a base, a clamping assembly, a mounting block and a drill rod; the application is characterized in that a slag collecting groove is arranged on the supporting cylinder, so that the metal waste generated in the drilling process falls into the slag collecting groove instead of the inside of the pipe; after the drilling is completed, the friction between the supporting cylinder and the inner wall of the pipe reshapes the punching position, and when the edge of the through hole at the end of the clamping assembly moves relative to the pipe, burrs generated in the drilling process are scraped off from the pipe, the problem that the drilling process lacks an effective discharge channel for the drill chips accumulated in the pipe and needs manual intervention for cleaning is solved, the problem that the metal burrs affect the subsequent assembling precision is solved, and the assembling efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of assembly machine tools, and in particular to an automatic assembly mechanism for producing antenna tubes. Background Art

[0002] The production process of antenna tube materials usually includes tube cutting, positioning and punching, component assembly and surface treatment. Correspondingly, the automatic assembly mechanism of antenna tube materials is composed of a loading device, a visual positioning system, a multi-axis robotic arm, a cutting and transposing device, a punching device, a waste recovery unit, etc.

[0003] For example, Chinese patent publication number CN219293274U discloses an antenna tube assembly machine. The advantages of this assembly machine include: a high degree of automation, the ability to replace manual drilling, shrinking, and assembly processes, reducing labor density, and the structural design of the workstation transfer device, which greatly improves overall production and assembly efficiency. However, the drilling devices described in the aforementioned patents and prior art typically utilize a fixed fixture in conjunction with a high-speed drill bit to achieve the desired effect. This process presents the following problems: First, the spiral drill cuttings accumulated within the tube lack an effective discharge channel, requiring manual intervention and cleaning, which reduces production efficiency. Second, metal burrs form on the inner wall of the drilled tube, affecting the subsequent assembly accuracy and the tube's elasticity. Third, the rigid fixture structure of the prior art cannot adapt to the processing requirements of different tube diameters, requiring machine downtime for adjustments when changing to multiple diameters, which impacts assembly efficiency. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention proposes an automatic assembly mechanism for antenna tube production. The device solves the problems in the existing technology that the metal scraps generated by the antenna tube production assembly machine when drilling the tube cannot be automatically discharged, the burrs on the inner wall of the drilling position damage the tube and affect the subsequent assembly accuracy, and the problem of being unable to adapt to the drilling processing of multi-diameter tubes, resulting in low assembly efficiency.

[0005] The present invention provides an automatic assembly mechanism for antenna tube production, which adopts the following technical solution: comprising a loading device, a conveying device, a shrinking device, a waste cutting device, a spring assembly device, a docking device, a station moving device, and a punching device; wherein the punching device comprises a base, a clamping assembly, a mounting block, and a drill rod;

[0006] The base is set horizontally;

[0007] The clamping assembly is movably mounted on the base along a first direction, and the clamping assembly is used to clamp the pipe material;

[0008] The mounting block is fixedly connected to the base, and an abutment ring is fixedly connected to the mounting block; a mounting frame is provided between the clamping assembly and the mounting block;

[0009] The drill rod extends along the radial direction of the pipe material, one end of the drill rod is rotatably and radially movably mounted to the mounting frame, and the other end of the drill rod points to the pipe material; the drill rod is connected with a driving member, and the driving member is used to drive the drill rod to rotate and move to the axis direction of the pipe material;

[0010] The support cylinder is arranged along the first direction, and the support cylinder is coaxially arranged with the clamping assembly; one end of the support cylinder is connected to the abutting ring, and the other end of the support cylinder points to the clamping assembly; a slag collecting groove is arranged in the support cylinder, a through hole is arranged on the peripheral wall of the support cylinder, and the through hole communicates the outside with the slag collecting groove; during drilling, the drill rod passes through the through hole; the outer diameter of the support cylinder is equal to the inner diameter of the pipe material.

[0011] Optionally, the support cylinder comprises a fixed cylinder and N movable cylinders; the N movable cylinders are coaxially arranged and sequentially nested; in the two adjacent movable cylinders, the outer diameter of the movable cylinder on the inner side is equal to the inner diameter of the movable cylinder on the outer side; the fixed cylinder is fixedly connected to the innermost movable cylinder, and the outer diameter of the fixed cylinder is equal to the inner diameter of the innermost movable cylinder; the outer diameters of the fixed cylinder and the N-1 movable cylinders from the inner side to the outer side correspond to the inner diameters of the N pipe materials to be machined; the outermost movable cylinder is movably arranged along the axis thereof and around the axis thereof to the abutting ring; in the two adjacent movable cylinders, the movable cylinder on the inner side is movably arranged along the axis thereof and rotatably arranged around the axis thereof to the movable cylinder on the outer side; a group of through holes are arranged on the outermost movable cylinder, two groups of through holes are arranged on the next movable cylinder, and one group of through holes is coaxial with the through holes on the movable cylinder on the outer side; by analogy, N+1 groups of through holes are arranged on the fixed cylinder, and N groups of through holes are coaxial with the through holes on the movable cylinder on the outer side; the number of each group of through holes is equal to the number of the drill rods;

[0012] The installation cavities are defined between the two adjacent movable cylinders and between the outermost movable cylinder and the abutting ring, and the limiting assemblies are arranged in the installation cavities; the limiting assemblies have a locking state and an unlocking state; when the limiting assemblies are in the locking state, the two movable cylinders or the movable cylinder and the abutting ring connected thereto are relatively stationary; when the limiting assemblies between the movable cylinder and the abutting ring are in the unlocking state, the movable cylinder moves along the axis thereof to the mounting block under the action of the thrust force; when the limiting assemblies between the two adjacent movable cylinders are in the unlocking state, the movable cylinder on the inner side moves along the axis thereof to the mounting block. When the pipe and the Nth movable cylinder from the outer side to the inner side abut against the end face of the clamping assembly, the plurality of limiting assemblies are sequentially switched to the unlocking state from the outer side to the inner side.

[0013] Optionally, the limit assembly is a limit spring, which is sleeved on one end of the movable cylinder facing the mounting block; the two ends of the limit spring between the movable cylinder and the abutment ring are respectively connected to the outermost movable cylinder and the abutment ring; the two ends of the limit spring between two adjacent movable cylinders are respectively connected to the two movable cylinders; in the initial state, all limit springs are in a stored force state; when the thrust applied to the movable cylinder is less than the pre-tightening force of the limit spring, the limit spring is in a limited state, and when the thrust applied to the movable cylinder is greater than the pre-tightening force of the limit spring, the limit spring is in an unlocked state; the pre-tightening force of multiple limit springs increases successively from the outside to the inside; when the end face of the movable cylinder facing the clamping assembly is flush with the end face of the abutment ring facing the clamping assembly, the limit spring is compressed to the limit state, and at this time the elastic force of the limit spring is less than the pre-tightening force of the inner limit spring in the initial state.

[0014] Optionally, a guide member is also provided in the installation cavity, which is used to rotate the movable cylinder around its own axis while the movable cylinder moves axially toward the installation block; and when the pipe material abuts the abutment ring, the through hole on the movable cylinder whose outer diameter is equal to the inner diameter of the pipe material is coaxial with the drill rod.

[0015] Optionally, the guide member is a guide thread.

[0016] Optionally, two drill rods are provided, and the two drill rods are coaxially arranged. Correspondingly, two through holes are opened on the outermost movable cylinder, and the two through holes are coaxially arranged, and the two through holes form a group; the Nth movable cylinder from the outside to the inside has 2N through holes.

[0017] Optionally, in the initial state, the through hole on the outermost movable cylinder extends vertically, and one end of the slag collecting trough facing the mounting block is flush with the through hole on the outermost movable cylinder.

[0018] Optionally, the slag collecting trough is tapered with its mouth widened toward the clamping assembly.

[0019] Optionally, all guide threads have the same spiral direction, and a material guide thread is provided in the slag collecting trough. The spiral direction of the material guide thread is set so that when the fixed cylinder moves away from the mounting block, the material guide thread pushes the waste in the slag collecting trough toward the mounting block.

[0020] Optionally, the spiral directions of the guide threads in two adjacent installation cavities are opposite.

[0021] The present invention has the following beneficial effects: An automatic assembly mechanism for antenna tube production employs a slag collecting trough, which allows metal scraps generated during drilling to fall into the trough rather than into the interior of the tube. After drilling is completed, friction between the support tube and the inner wall of the tube shapes the hole location. As the edge of the through-hole toward one end of the clamping assembly moves relative to the tube, burrs generated during drilling are scraped off the tube. This solves the existing problem of drill cuttings accumulating inside the tube during drilling, lacking an effective discharge channel and requiring manual cleaning, as well as the problem of metal burrs affecting subsequent assembly accuracy, thereby improving assembly efficiency.

[0022] Furthermore, the present invention divides the support tube into multiple fixed tubes and multiple movable tubes of different diameters that are nested in sequence. This can provide stable support for pipes of different diameters when punching holes in pipes of different diameters. There is no need to replace the support tubes of corresponding sizes according to the sizes of the pipes, thereby reducing the downtime during the processing and improving the processing and assembly efficiency.

[0023] Furthermore, by setting a guide thread, the movable cylinder or fixed cylinder matching the diameter of the pipe can rotate unidirectionally or reciprocatingly around its own axis during the process of restoring the initial state, thereby grinding and shaping the inner wall of the pipe, thereby solving the problem in the prior art of burrs generated during drilling affecting the assembly accuracy and damaging the pipe.

[0024] Furthermore, during the drilling process and the process of restoring the initial state after the drilling is completed, the metal waste entering the slag trough is guided toward the mounting block and falls from the through hole on the outermost movable cylinder under the action of gravity. There is no need for manual cleaning of the waste, thereby improving the assembly efficiency of the antenna tube production. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a schematic diagram of the overall structure of an automatic assembly mechanism for producing antenna tubes according to the present invention;

[0027] Figure 2 This is a schematic diagram of the overall structure of an automatic assembly mechanism for antenna tube production according to the present invention from another angle;

[0028] Figure 3 This is a schematic structural diagram of a punching device in an automatic assembly mechanism for antenna tube production according to the present invention;

[0029] Figure 4 This is a schematic structural diagram of a mounting block, a support tube, and a drill rod in an automatic assembly mechanism for antenna tube production according to the present invention;

[0030] Figure 5 This is a structural schematic diagram of a first embodiment of a support tube in an automatic assembly mechanism for antenna tube production according to the present invention;

[0031] Figure 6 for Figure 5 Schematic diagram of the structure of the middle structure cut along the vertical plane;

[0032] Figure 7 for Figure 5 Schematic diagram of the structure of the fixed cylinder;

[0033] Figure 8 for Figure 6 Enlarged image at the middle X;

[0034] Figure 9 This is a structural schematic diagram of a second embodiment of a support tube in an automatic assembly mechanism for antenna tube production according to the present invention;

[0035] Figure 10 for Figure 9 Schematic diagram of the structure of the middle structure cut along the vertical plane;

[0036] Figure 11 for Figure 10 Enlarged view of point Y in the middle.

[0037] In the picture:

[0038] 100, feeding device; 110, conveying device; 120, shrinking device; 130, waste cutting device; 140, reed assembly device; 150, docking device; 160, workstation moving device;

[0039] 200, punching device; 210, base; 220, clamping assembly; 230, mounting block; 231, abutment ring; 240, drill rod; 250, support cylinder; 251, slag collecting trough; 252, through hole; 253, fixed cylinder; 254, movable cylinder; 255, material guide thread; 260, limit spring; 270, guide thread. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0041] like Figures 1 to 11As shown, an embodiment of the present invention provides an automatic assembly mechanism for antenna tube production, comprising a loading device 100, a conveying device 110, a shrinking device 120, a waste cutting device 130, a spring assembly device 140, a docking device 150, a station moving device 160, and a punching device 200; wherein the punching device 200 comprises a base 210, a clamping assembly 220, a mounting block 230, and a drill rod 240;

[0042] The base 210 is arranged horizontally;

[0043] The clamping assembly 220 is mounted on the base 210 so as to be movable along a first direction. The clamping assembly 220 is used to clamp the pipe material. The clamping assembly 220 includes a moving member, a moving driving member, and a chuck. The moving member is mounted on the base so as to be movable along the first direction. The moving driving member drives the moving member to move along the first direction. The chuck is mounted on the moving member.

[0044] The mounting block 230 is fixedly connected to the base 210, and an abutment ring 231 is fixedly connected to the mounting block 230; a mounting frame is provided between the clamping assembly 220 and the mounting block 230;

[0045] The drill rod 240 extends radially along the pipe, with one end mounted on a mounting bracket for rotation and movement along the pipe's radial direction, and the other end pointing toward the pipe. The drill rod 240 is connected to a drive member for driving the drill rod 240 to rotate and move toward the pipe's axis.

[0046] The support tube 250 is extended along the first direction, and the support tube 250 is coaxially arranged with the clamping assembly 220; one end of the support tube 250 is connected to the abutment ring 231, and the other end points to the clamping assembly 220; a slag collecting groove 251 is opened inside the support tube 250, and a through hole 252 is opened on the peripheral wall thereof, and the through hole 252 connects the outside with the slag collecting groove 251; during the drilling process, the drill rod 240 passes through the through hole 252; the outer diameter of the support tube 250 is equal to the inner diameter of the pipe material.

[0047] After the conveying device 110 transfers the pipe material to the punching device 200, the clamping assembly 220 is used to clamp the pipe material so that the pipe material extends along the first direction. At this time, the pipe material is coaxial with the support tube 250. Thereafter, the clamping assembly 220 drives the pipe material to move toward the mounting block 230. During the movement, the pipe material is sleeved on the outside of the support tube 250. When the pipe material abuts the abutment ring 231, the clamping assembly 220 stops moving and starts the driving member. The driving member drives the drill rod 240 to rotate while moving toward the axis of the pipe material to drill a hole in the pipe material. Since the outer wall of the support tube 250 is equal to the inner diameter of the pipe material, the metal scraps generated during the drilling process fall into the slag trough 251 instead of the inside of the pipe material. After the drilling is completed, the drill rod 240 is moved away from the pipe material in the radial direction of the pipe material, and the clamping assembly 220 is used to drive the pipe material away from the mounting block 230, thereby separating the pipe material from the support tube 250. In the process of the pipe material moving away from the support tube 250, the friction between the support tube 250 and the inner wall of the pipe material reshapes the drilling position, and when the edge of the through hole 252 toward one end of the clamping assembly 220 moves relative to the pipe material, the burrs generated during drilling are scraped off the pipe material, which solves the problem in the prior art that drill cuttings accumulate inside the pipe material during drilling and lack an effective discharge channel, requiring manual intervention for cleaning, and the problem that metal burrs affect the subsequent assembly accuracy, thereby improving assembly efficiency.

[0048] In a further embodiment, the support cylinder 250 includes a fixed cylinder 253 and N movable cylinders 254; the N movable cylinders 254 are coaxially arranged and nested in sequence; of two adjacent movable cylinders 254, the outer diameter of the movable cylinder 254 located on the inner side is equal to the inner diameter of the movable cylinder 254 located on the outer side; the fixed cylinder 253 is fixedly connected to the innermost movable cylinder 254, and the outer diameter of the fixed cylinder 253 is equal to the inner diameter of the innermost movable cylinder 254; the outer diameters of the fixed cylinder 253 and the N-1 movable cylinders 254 from the inside to the outside respectively correspond to the inner diameters of the N sections of pipe material to be processed; the outermost movable cylinder 254 moves along its own axis and is installed around its own axis The abutment ring 231 has two adjacent movable cylinders 254. The inner movable cylinder 254 is mounted on the outer movable cylinder 254 so as to move along its own axis and rotate about the axis. The outermost movable cylinder 254 has a set of through holes 252, and the second outermost movable cylinder 254 has two sets of through holes 252, one of which is coaxial with the through holes 252 on the outer movable cylinder 254. Similarly, the fixed cylinder 253 has N+1 sets of through holes 252, N sets of through holes 252 being coaxial with the through holes 252 on the outer movable cylinder 254. The number of through holes 252 in each set is equal to the number of drill rods 240.

[0049] A mounting cavity is defined between two adjacent movable cylinders 254 and between the outermost movable cylinder 254 and the abutment ring 231. A limit assembly is disposed within the mounting cavity, and the limit assembly has a locked state and an unlocked state. When the limit assembly is in the locked state, the two connected movable cylinders 254 or the movable cylinder 254 and the abutment ring 231 remain relatively stationary. When the limit assembly between the movable cylinder 254 and the abutment ring 231 is in the unlocked state, the movable cylinder 254 moves along its own axis toward the mounting block 230 when it is thrust. When the limit assembly between two adjacent movable cylinders 254 is in the unlocked state, the inner movable cylinder 254 moves along its own axis toward the mounting block 230. When the pipe abuts the end face of the Nth movable cylinder 254 from the outside to the inside facing the clamping assembly 220, the multiple limit assemblies are sequentially switched to the unlocked state from the outside to the inside.

[0050] The limiting assembly is a limiting spring 260, which is sleeved on one end of the movable cylinder 254 facing the mounting block 230; the two ends of the limiting spring 260 between the movable cylinder 254 and the abutment ring 231 are respectively connected to the outermost movable cylinder 254 and the abutment ring 231; the two ends of the limiting spring 260 between two adjacent movable cylinders 254 are respectively connected to the two movable cylinders 254; in the initial state, all the limiting springs 260 are in the storage state; when the movable cylinder 254 is subjected to a thrust less than the preload of the limiting spring 260 When the force is applied, the limit spring 260 is in a limit state. When the thrust applied to the movable cylinder 254 is greater than the pre-tightening force of the limit spring 260, the limit spring 260 is in an unlocked state. The pre-tightening forces of the multiple limit springs 260 increase successively from the outside to the inside. When the end face of the movable cylinder 254 toward the clamping assembly 220 is flush with the end face of the abutment ring 231 toward the clamping assembly 220, the limit spring 260 is compressed to an extreme state. At this time, the elastic force of the limit spring 260 is less than the pre-tightening force of the inner limit spring 260 in the initial state.

[0051] When punching, the material tube is clamped by the clamping assembly 220 and driven to move toward the mounting block 230. During the movement, the material tube is sleeved on the outside of the movable cylinder 254 whose outer diameter is equal to the inner diameter of the material tube, and the material tube abuts against the end of the outer movable cylinder 254 adjacent to the movable cylinder 254. As the material tube continues to move, the thrust exerted by the material tube on the movable cylinder 254 gradually increases. When the thrust is greater than the pre-tightening force of the outermost limit spring 260, the outermost limit spring 260 switches to the unlocked state. Thereafter, as the material tube moves, the outermost limit spring 260 is gradually compressed, and the outermost movable cylinder 254 is pressed against the outermost limit spring 260. 54 moves toward the mounting block 230. When the outermost movable cylinder 254 moves, since the thrust of the pipe material on the movable cylinder 254 is less than the pre-tightening force of the other limit springs 260, the other limits are in a locked state. Therefore, the other movable cylinders 254 and the fixed cylinder 253 move synchronously with the outermost movable cylinder 254 toward the mounting block 230. When the outermost movable cylinder 254 moves a preset distance, its end toward the clamping assembly 220 is flush with the end of the abutment ring 231 toward the clamping assembly 220. At this time, the outermost limit spring 260 is in a limit state. The outermost movable cylinder 254 cannot move further. Thereafter, as the pipe material continues to move, when the thrust given by the pipe material is greater than the preload of the second outer limit spring 260, the second outer limit spring 260 switches to the unlocked state. Thereafter, as the pipe material moves, the second outer movable cylinder 254 moves toward the mounting block 230. When the movable cylinder 254 moves, it drives the movable cylinder 254 and the fixed cylinder 253 inside it to move synchronously; and so on, until the end of the pipe material abuts against the abutment ring 231, at which time the pipe material is clamped and fixed. The driving member is then started to drive the drill rod 240 to punch holes in the pipe fitting. The present invention provides stable support for the pipe diameter when punching pipe materials of different diameters by dividing the support cylinder 250 into multiple movable cylinders 254 of different diameters that are nested in sequence. There is no need to replace the support cylinder 250 of the corresponding size according to the pipe material size, thereby reducing the downtime during the processing and improving the processing and assembly efficiency.

[0052] In a further embodiment, a guide member is further provided within the mounting cavity. The guide member is configured to rotate the movable cylinder 254 about its own axis while the movable cylinder 254 moves axially toward the mounting block 230. Furthermore, when the pipe abuts the abutment ring 231, the through hole 252 in the movable cylinder 254, whose outer diameter is equal to the inner diameter of the pipe, becomes coaxial with the drill rod 240. The guide member is a guide thread 270.

[0053] After drilling is completed, the clamping assembly 220 drives the pipe away from the mounting block 230, at which point the limit spring 260 is released. Since the elastic force of the multiple limit springs 260 decreases from the inside out, the limit spring 260 between the movable cylinder 254 matching the pipe and the movable cylinder 254 outside it is released first; this drives the movable cylinder 254 matching the pipe to rotate about its own axis, trimming the deformation caused by the drilling edge and separating the burrs at its edge from the pipe; thereafter, the limit spring 260 outside it releases its elastic force, driving the movable cylinder 254 next to the outside to move and rotate, and so on, until all movable cylinders 254 return to their initial state. As the pipe continues to move, the pipe is separated from the support cylinder 250. While the support cylinder 250 returns to its initial state, the movable cylinder 254 or the fixed cylinder 253 matching the pipe continues to rotate, grinding the drilling position of the pipe, thereby solving the problem of burrs affecting assembly accuracy and damaging the pipe in the prior art.

[0054] In a further embodiment, two drill rods 240 are provided, and the two drill rods 240 are coaxially arranged. Correspondingly, two through holes 252 are opened on the outermost movable cylinder 254, and the two through holes 252 are coaxially arranged, and the two through holes 252 form a group; the Nth movable cylinder 254 from the outside to the inside is provided with N groups of through holes 252.

[0055] In a further embodiment, in the initial state, the through hole 252 on the outermost movable cylinder 254 extends vertically, and one end of the slag collecting trough 251 facing the mounting block 230 is flush with the through hole 252 on the outermost movable cylinder 254 .

[0056] Define the distance that the movable cylinder 254 moves relative to the movable cylinder 254 or the abutting ring 231 outside it as L, then Figure 5 、 Figure 6 In the illustrated embodiment, the pitch of the guide thread 270 between the outermost movable cylinder 254 and the abutment ring 231 is (4 / 5) L, and the pitch of the guide thread 270 between two adjacent movable cylinders 254 is (2 / 3) L;

[0057] When the inner diameter of the pipe material is consistent with the outer diameter of the fixed cylinder 253, as the pipe material moves toward the mounting block 230, the outermost movable cylinder 254 drives the movable cylinder 254 and the fixed cylinder 253 to rotate synchronously by 450 degrees. At this time, the through hole 252 on the outermost movable cylinder 254 rotates to a horizontal state. Thereafter, the second limit spring 260 from the outside to the inside begins to compress, and the second outermost movable cylinder 254 drives the innermost movable cylinder 254 and the fixed cylinder 253 to rotate synchronously by 540 degrees. When the second outermost movable cylinder 254 faces the clamping assembly 22 When the end surface of the clamping assembly 220 is flush with the abutment ring 231, the second outermost movable cylinder 254 stops moving and rotating. At this time, the inner movable cylinder 254 and the through hole 252 on the fixed cylinder 253 are both in a horizontal state. Thereafter, the innermost movable cylinder 254 drives the fixed cylinder 253 to rotate 540 degrees until the end surface of the movable cylinder 254 facing the clamping assembly 220 is flush with the abutment ring 231. The movable cylinder 254 stops moving and rotating. At this time, the through hole 252 on the fixed cylinder 253 is in a horizontal state and coaxial with the drill rod 240. Then, the drilling operation is carried out.

[0058] Figure 9 、 Figure 10 In the embodiment shown, the pitch of the guide thread 270 between the outermost movable cylinder 254 and the abutment ring 231 and the guide thread 270 between two adjacent movable cylinders 254 are both (4 / 5) L. When the inner diameter of the pipe material is consistent with the outer diameter of the fixed cylinder 253, as the pipe material moves toward the mounting block 230, the outermost movable cylinder 254 drives the movable cylinders 254 and the fixed cylinder 253 therein to rotate synchronously by 540°. At this time, the through hole 252 on the outermost movable cylinder 254 rotates to a vertical state, and the through holes 252 on the other movable cylinders 254 and the fixed cylinder 253 are all in a horizontal state. Thereafter, the second limit spring from the outside to the inside is 260 begins to compress, and the second outermost movable cylinder 254 drives the innermost movable cylinder 254 and the fixed cylinder 253 to rotate synchronously by 540°. When the end surface of the second outermost movable cylinder 254 facing the clamping assembly 220 is flush with the abutment ring 231, the second outermost movable cylinder 254 stops moving and rotating; the innermost movable cylinder 254 drives the fixed cylinder 253 to rotate 540° until the end surface of the movable cylinder 254 facing the clamping assembly 220 is flush with the abutment ring 231, and the movable cylinder 254 stops moving and rotating. At this time, the through hole 252 on the fixed cylinder 253 is in a horizontal state and coaxial with the drill rod 240; then the drilling operation is carried out;

[0059] After drilling is completed, the limit springs 260 return to their original positions. As the limit springs 260 release their elastic force, they cause the movable cylinders 254 to move away from the mounting block 230 and rotate simultaneously. When all movable cylinders 254 return to their initial positions, the through-holes 252 on the outermost movable cylinders 254 are vertical, and waste material in the slag collecting trough 251 is discharged through the through-holes 252 on the outermost movable cylinders 254. The present invention collects drilled waste material during drilling, preventing it from entering the pipe and affecting subsequent assembly accuracy. Furthermore, after drilling is completed, waste material in the slag collecting trough 251 is automatically discharged, eliminating the need for manual waste cleaning and improving assembly efficiency in antenna pipe production.

[0060] In a further embodiment, Figure 9 、 Figure 10 、 Figure 11 As shown; the spiral direction of all guide threads 270 is the same, and a material guide thread 255 is provided in the slag collecting trough 251. The spiral direction of the material guide thread 255 is set so that when the fixed cylinder 253 moves away from the mounting block 230, the material guide thread 255 pushes the waste in the slag collecting trough 251 to move toward the mounting block 230.

[0061] In a further embodiment, Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 As shown, the slag collecting groove 251 is tapered with its mouth wide toward the clamping assembly 220; the guide threads 270 in the two adjacent mounting cavities have opposite spiral directions. During the drilling process, because the diameter of the slag collecting groove 251 facing the mounting block 230 is larger, the waste generated by drilling enters the slag collecting groove 251 and moves toward the mounting block 230. When all the limit springs 260 return to their initial state, the through hole 252 on the outermost movable cylinder 254 is in a vertical state, and the waste in the slag collecting groove 251 falls out of the through hole 252 on the outermost movable cylinder 254. Furthermore, because the spiral directions of the two adjacent guide threads 270 are opposite, after drilling is completed, when all the movable cylinders 254 return to their initial state, the movable cylinder 254 that matches the pipe material rotates back and forth, thereby resolving the problem of the burrs on the edge of the drilled hole only deforming without separating from the pipe material when the movable cylinder 254 rotates in one direction, further ensuring processing quality.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic assembly mechanism for antenna tube production, characterized in that: It includes a feeding device, a conveying device, a shrinking device, a waste cutting device, a reed assembly device, a docking device, a station moving device and a punching device; wherein the punching device includes a base, a clamping assembly, a mounting block and a drill rod; The base is set horizontally; The clamping assembly is movably mounted on the base along a first direction, and the clamping assembly is used to clamp the pipe material; The mounting block is fixedly connected to the base, and an abutment ring is fixedly connected to the mounting block; a mounting frame is provided between the clamping assembly and the mounting block; The drill rod extends radially along the pipe material, with one end mounted on a mounting frame so as to rotate and move radially along the pipe material, and the other end pointing toward the pipe material; the drill rod is connected to a drive member, which is used to drive the drill rod to rotate and move toward the axis of the pipe material; The support tube is extended in a first direction and is coaxially arranged with the clamping assembly; one end of the support tube is connected to the abutment ring, and the other end points to the clamping assembly; a slag collecting groove is provided inside the support tube, and a through hole is provided on the peripheral wall thereof, the through hole connecting the outside with the slag collecting groove; during drilling, the drill rod passes through the through hole; the outer diameter of the support tube is equal to the inner diameter of the pipe; The supporting cylinder includes a fixed cylinder and N movable cylinders; the N movable cylinders are coaxially arranged and nested in sequence; among the two adjacent movable cylinders, the outer diameter of the movable cylinder located on the inner side is equal to the inner diameter of the movable cylinder located on the outer side; the fixed cylinder is fixedly connected to the innermost movable cylinder, and the outer diameter of the fixed cylinder is equal to the inner diameter of the innermost movable cylinder; the outer diameters of the fixed cylinder and the N-1 movable cylinders from the inside to the outside respectively correspond to the inner diameters of the N sections of pipe materials to be processed; the outermost movable cylinder moves along its own axis and is installed on the abutment ring around its own axis, and among the two adjacent movable cylinders, the movable cylinder located on the inner side moves along its own axis and is rotatably installed on the movable cylinder located on the outer side; a group of through holes is provided on the outermost movable cylinder, and two groups of through holes are provided on the second outermost movable cylinder, and one group of through holes is coaxial with the through holes on the outer movable cylinder; and so on, N+1 groups of through holes are provided on the fixed cylinder, wherein the N groups of through holes are coaxial with the through holes on the outer movable cylinder; the number of through holes in each group is equal to the number of drill rods; An installation cavity is defined between two adjacent movable cylinders and between the outermost movable cylinder and the abutment ring, and a limit assembly is provided in the installation cavity, which has a locked state and an unlocked state; when the limit assembly is in the locked state, the two movable cylinders connected thereto or the movable cylinder and the abutment ring are relatively stationary; when the limit assembly between the movable cylinder and the abutment ring is in the unlocked state, the movable cylinder moves toward the installation block along its own axial direction when subjected to thrust; when the limit assembly between two adjacent movable cylinders is in the unlocked state, the movable cylinder located on the inner side moves toward the installation block along its own axial direction; when the pipe fitting abuts against the end face of the Nth movable cylinder from the outside to the inside facing the clamping assembly, multiple limit assemblies are switched to the unlocked state in sequence from the outside to the inside; The limiting component is a limiting spring, which is sleeved on one end of the movable cylinder facing the mounting block; the two ends of the limiting spring between the movable cylinder and the abutment ring are respectively connected to the outermost movable cylinder and the abutment ring; the two ends of the limiting spring between two adjacent movable cylinders are respectively connected to the two movable cylinders.

2. The automatic assembly mechanism for antenna tube production according to claim 1, characterized in that: In the initial state, all limit springs are in a stored force state; when the thrust applied to the movable cylinder is less than the preload force of the limit spring, the limit spring is in a limited state; when the thrust applied to the movable cylinder is greater than the preload force of the limit spring, the limit spring is in an unlocked state; the preload forces of multiple limit springs increase successively from the outside to the inside; when the end face of the movable cylinder facing the clamping assembly is flush with the end face of the abutment ring facing the clamping assembly, the limit spring is compressed to a limit state, at which time the elastic force of the limit spring is less than the preload force of the inner limit spring in the initial state.

3. The automatic assembly mechanism for antenna tube production according to claim 2, characterized in that: A guide is also provided in the installation cavity, which is used to rotate the movable cylinder around its own axis while the movable cylinder moves axially toward the installation block; and when the pipe abuts the abutment ring, the through hole on the movable cylinder whose outer diameter is equal to the inner diameter of the pipe is coaxial with the drill rod.

4. The automatic assembly mechanism for antenna tube production according to claim 3, characterized in that: The guide member is a guide thread.

5. The automatic assembly mechanism for antenna tube production according to claim 4, characterized in that: There are two drill rods, which are coaxially arranged. Correspondingly, two through holes are opened on the outermost movable cylinder, which are coaxially arranged and form a group of two through holes; the Nth movable cylinder from the outside to the inside has 2N through holes.

6. The automatic assembly mechanism for antenna tube production according to claim 5, characterized in that: In the initial state, the through hole on the outermost movable cylinder extends vertically, and one end of the slag collecting groove facing the mounting block is flush with the through hole on the outermost movable cylinder.

7. The automatic assembly mechanism for antenna tube production according to claim 6, characterized in that: The slag collecting trough is tapered with its mouth wide toward the clamping assembly.

8. The automatic assembly mechanism for antenna tube production according to claim 7, characterized in that: The spiral direction of all guide threads is the same. A material guide thread is provided in the slag collecting trough. The spiral direction of the material guide thread is set so that when the fixed cylinder moves away from the mounting block, the material guide thread pushes the waste in the slag collecting trough toward the mounting block.

9. The automatic assembly mechanism for antenna tube production according to claim 7, characterized in that: The spiral directions of the guide threads in two adjacent installation cavities are opposite.

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