Metal turning device

Abstract

The present application aims to provide a metal plug cutting device, which comprises a tool holder and an adjusting assembly, the adjusting assembly comprises an adjusting driving part, an adjusting shaft, a main sliding block, two side sliding blocks and two plug cutting tools, the two side sliding blocks are arranged in the tool holder at intervals, the two plug cutting tools are arranged on the two side sliding blocks respectively, the cutting edges of the two plug cutting tools extend from the bottom of the tool holder, the main sliding block is arranged in the tool holder and slides along the vertical direction, the two side sliding blocks are both in sliding connection with the main sliding block, the adjusting shaft is arranged in the tool holder and rotates, the adjusting shaft is in screw connection with the main sliding block, the adjusting driving part is arranged in the tool holder and the output shaft of the adjusting driving part is connected with the adjusting shaft, the adjusting driving part is used to drive the adjusting shaft to rotate, so as to drive the main sliding block to drive the two side sliding blocks to move close to or away from each other, thereby the distance between the cutting edges of the two plug cutting tools is adjustable. In this way, the plug cutting machining of two round corner structures can be carried out at the same time, the plug cutting machining efficiency is effectively improved, and the plug cutting machining cost is reduced.

Description

Technical Field

[0001] This invention relates to the technical field of metal processing, and in particular to a metal planing apparatus. Background Technology

[0002] Currently, metal processing mainly includes turning, milling, and planing. Turning involves driving the workpiece to rotate continuously while the cutting tool feeds to the surface or interior of the workpiece, thereby forming rotary structures such as shafts, sleeves, discs, and threaded structures. Milling, on the other hand, involves driving a multi-edged cutting tool to rotate continuously while the tool feeds along the X, Y, and Z axes, thereby forming non-rotational structures such as planes, stepped surfaces, grooves, and cavities on the workpiece. Planing refers to the cutting tool making horizontal linear reciprocating motions through intermittent feed movements to form planes, straight grooves, dovetail grooves, and other structures on the workpiece. Sliding is a variation of planing. Unlike planing, where the cutting tool moves horizontally, in sliding, the cutting tool makes intermittent feed movements along the vertical direction. Therefore, sliding is also called vertical planing. Sliding is mostly used to process keyways, splines, or vertical planes of workpieces, and is especially suitable for processing groove structures in deep holes.

[0003] like Figure 1 The diagram shows the structural changes of a metal workpiece 20 before and after machining. A polygonal through-hole 21 with a right-angle structure 21a needs to be machined on the metal workpiece 20. Specifically, the included angle between any two adjacent inner walls of the through-hole 21 is a right-angle structure 21a. According to the current machining method, a pre-through hole 22 with a rounded corner structure 22b needs to be machined first using a milling cutter. This is because during the continuous rotation of the milling cutter, the connection point between two adjacent inner walls of the pre-through hole 22 is always a fitting structure of the outer peripheral wall of the milling cutter, thus forming a rounded corner structure 22b. Finally, a planer tool is used to machine each rounded corner structure 22b into a right-angle structure 21a through multiple linear feed movements.

[0004] However, the right angles between any two holes on the inner wall indicate that the pre-perforated holes 22 are at least quadrilateral structures, meaning there are at least four rounded corner structures 22b. It can be foreseen that when the through holes 21 are formed by splicing multiple quadrilateral holes to create a connected through-hole structure, the number of rounded corner structures 22b will increase accordingly, as... Figure 1 Taking the metal workpiece 20 shown as an example, the pre-pierced hole 22 is formed by splicing two quadrilateral holes, thus having six rounded corner structures 22b. However, existing planing tools can only perform planing operations on a single rounded corner structure 22b at a time, resulting in excessively low processing efficiency. It is foreseeable that as the number of rounded corner structures 22b further increases, the excessively low planing efficiency will become even more pronounced. Therefore, in order to solve the problem of low processing efficiency in existing planing tools, the metal planing apparatus of this application is proposed. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a metal planing device that can simultaneously perform planing processing on two rounded corner structures to effectively improve the planing processing efficiency.

[0006] The objective of this invention is achieved through the following technical solution:

[0007] A metal planing device, comprising: Knife holder; and An adjustment assembly includes an adjustment drive, an adjustment shaft, a main slider, two side sliders, and two planer cutters. The two side sliders are slidably disposed within the tool holder at intervals. The two planer cutters are respectively disposed on the two side sliders, with their cutting edges extending from the bottom of the tool holder. The main slider is slidably disposed within the tool holder in a vertical direction, and both side sliders are slidably connected to the main slider. The adjustment shaft is rotatably disposed within the tool holder and screwed to the main slider. The adjustment drive is disposed within the tool holder, and its output shaft is connected to the adjustment shaft. The adjustment drive drives the adjustment shaft to rotate, thereby driving the main slider to move the two side sliders closer together or further apart, thus making the distance between the cutting edges of the two planer cutters adjustable.

[0008] Optionally, the tool holder includes a base, a replacement head, and a locking cover. The adjustment drive is disposed within the base. The main slider and the two side sliders are slidably disposed within the replacement head. The adjustment shaft includes a first shaft portion and a second shaft portion. The first shaft portion is rotatably disposed within the base and is connected to the output shaft of the adjustment drive. The second shaft portion is rotatably disposed within the replacement head and is screwed to the main slider. The locking cover is rotatably disposed at the bottom of the base and is screwed to the replacement head to fix the replacement head to the bottom of the base and to connect the second shaft portion with the first shaft portion.

[0009] Optionally, the base is provided with a positioning protrusion, and the replacement head is provided with a positioning recess, the positioning protrusion being adapted to be inserted into the positioning recess.

[0010] Optionally, the second shaft includes a docking shaft and a screw connected to each other. The docking shaft is rotatably disposed in the replacement head, and one end of the docking shaft extends into the positioning recess. The screw is screwed to the main slider.

[0011] Optionally, the adjustment assembly further includes a limiting stud and a limiting block. The second shaft portion is coaxially provided with a limiting screw hole that passes through the docking shaft and extends into the screw rod. The limiting stud is screwed into the limiting screw hole. The limiting block is slidably disposed on the screw rod along the axial direction, and the limiting block is rotatably connected to the limiting stud. The limiting block is used to abut against the main slider.

[0012] Optionally, the first shaft includes a sleeve shaft, a telescopic shaft, and a spring. The sleeve shaft is rotatably disposed within the base, and the telescopic shaft is slidably disposed within the sleeve shaft along the axial direction. The spring abuts against the sleeve shaft and the telescopic shaft respectively, and the spring is used to push the telescopic shaft so that one end of the telescopic shaft extends out from the positioning protrusion to engage with the docking shaft.

[0013] Optionally, a slot is provided on the end face of the docking shaft, and the telescopic shaft is adapted to be inserted into the slot.

[0014] Optionally, the first shaft portion further includes a gear shaft and a torque sensor. The gear shaft is rotatably disposed within the base, and the torque sensor is disposed on one end of the gear shaft, with the detection end of the torque sensor connected to one end of the sleeve shaft.

[0015] Optionally, the first shaft portion further includes a screw shaft, which is rotatably disposed within the base. The outer side wall of the screw shaft is provided with a thread, and the outer side wall of the gear shaft is provided with a plurality of gear teeth. The thread meshes with the gear teeth, and the output shaft of the adjusting drive component is connected to the screw shaft.

[0016] Optionally, a conductive slip ring is also provided in the base. The output end of the conductive slip ring is connected to the end of the gear shaft away from the torque sensor. A shaft hole is opened in the gear shaft, and the output end of the conductive slip ring is used to electrically connect to the torque sensor through the shaft hole.

[0017] Compared with the prior art, the present invention has at least the following advantages: The metal planing apparatus of the present invention includes a tool holder and an adjustment assembly. The adjustment assembly includes an adjustment drive, an adjustment shaft, a main slide, two side slides, and two planing cutters. The two side slides are slidably disposed within the tool holder at intervals, and the two planing cutters are respectively disposed on the two side slides, with the cutting edges of the two planing cutters extending from the bottom of the tool holder. The main slide is slidably disposed within the tool holder in a vertical direction, and both side slides are slidably connected to the main slide. The adjustment shaft is rotatably disposed within the tool holder and screwed to the main slide. The adjustment drive is disposed within the tool holder, and the output shaft of the adjustment drive is connected to the adjustment shaft. The adjustment drive is used to drive the adjustment shaft to rotate, thereby driving the main slide to move the two side slides closer or further apart, thus making the distance between the cutting edges of the two planing cutters adjustable. Thus, by controlling the rotation of the output shaft of the adjustment drive, the distance between the two planing cutters is controlled, enabling simultaneous planing of two rounded corner structures. Compared to the prior art method of planing a single rounded corner structure, this improves processing efficiency by at least 50%, effectively reducing planing processing costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram showing the structural changes of a metal workpiece before and after planing machining, according to an embodiment of the present invention. Figure 2 This is a schematic diagram of the structure of a metal sawing apparatus according to an embodiment of the present invention; Figure 3 for Figure 2 A cross-sectional schematic diagram of the metal sawing device shown; Figure 4 This is a schematic diagram of the base and locking cover according to one embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of a replacement head according to one embodiment of the present invention; Figure 6 for Figure 5 The diagram shows the internal structure of the replacement head; Figure 7 for Figure 4 The diagram shows the internal structure of the base. Figure 8 This is a schematic diagram of the structure of a metal sawing device according to another embodiment of the present invention.

[0020] Explanation of reference numerals in the attached figures: 10. Metal planing device; 100. Tool holder; 200. Adjustment assembly; 210. Adjustment drive; 220. Adjustment shaft; 230. Main slide block; 240. Side slide block; 250. Planing cutter; 110. Base; 120. Replacement head; 130. Locking cover; 140. Positioning protrusion; 121. Positioning recess; 221. Connecting shaft; 222. Screw; 231. Angled ejector block; 241. Angled ejector groove; 260. Support column; 271. Limiting stud; 272. Limiting... Position block; 2201, limiting screw hole; 2221, slide groove; 223, sleeve shaft; 224, telescopic shaft; 225, spring; 2211, slot; 226, gear shaft; 227, torque sensor; 228, screw shaft; 229, conductive slip ring; 2261, shaft hole; 310, machine base; 320, material carrying drive unit; 330, material carrying plate; 340, cutting drive unit; 350, lifting plate; 360, rotary motor; 370, support plate; 380, rotating plate; 20. Metal workpiece; 21a. Right-angle structure; 21. Through hole; 22b. Rounded corner structure; 22. Pre-drilled hole. Detailed Implementation

[0021] To facilitate understanding of the present invention, a more comprehensive description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the invention.

[0022] like Figure 2 , Figure 3 As shown, a metal planing device 10 includes a tool holder 100 and an adjustment assembly 200. The adjustment assembly 200 includes an adjustment drive 210, an adjustment shaft 220, a main slide block 230, two side slide blocks 240, and two planing cutters 250. The two side slide blocks 240 are slidably disposed within the tool holder 100 at intervals. The two planing cutters 250 are respectively disposed on the two side slide blocks 240, and the cutting edges of the two planing cutters 250 extend from the bottom of the tool holder 100. The main slide block 230 is slidably disposed vertically on the tool holder 100. Inside, both side sliders 240 are slidably connected to the main slider 230. The adjusting shaft 220 is rotatably disposed inside the tool holder 100 and is screwed to the main slider 230. The adjusting drive 210 is disposed inside the tool holder 100 and the output shaft of the adjusting drive 210 is connected to the adjusting shaft 220. The adjusting drive 210 is used to drive the adjusting shaft 220 to rotate, thereby driving the main slider 230 to move the two side sliders 240 closer or further apart, so that the distance between the cutting edges of the two planing cutters 250 is adjustable.

[0023] It should be noted that the main slider 230 is slidably mounted vertically within the tool holder 100, and the side slider 240 is slidably mounted transversely within the tool holder 100, wherein the sliding direction of the main slider 230 is perpendicular to the sliding direction of the side slider 240. Further, the two side sliders 240 are located on opposite sides of the main slider 230. Two planing cutters 250 are fixedly mounted on the two side sliders 240, and both planing cutters 250 extend from the bottom side of the tool holder 100. Further, the adjusting shaft 220 is rotatably mounted within the tool holder 100, and the axis of the adjusting shaft 220 is vertically oriented. The adjusting shaft 220 is screwed to the main slider 230. Further, the adjusting drive 210 is mounted within the tool holder 100, and the output shaft of the adjusting drive 210 is connected to the adjusting shaft 220. For example, the adjusting drive 210 is a motor. Thus, the adjusting drive 210 drives the adjusting shaft 220 to rotate, thereby causing the main slider 230 to slide vertically within the tool holder 100. When the main slider 230 rises, it causes the two side sliders 240 to move closer together, which in turn causes the two planing cutters 250 to move closer together. When the main slider 230 falls, it causes the two side sliders 240 to move away from each other, which in turn causes the two planing cutters 250 to move away from each other. In this way, a single planing cutter 250 can perform planing on a single rounded corner structure 22b of the pre-pierced hole 22, and two planing cutters 250 can perform planing on two rounded corner structures 22b simultaneously. It should be noted that since the two adjacent inner sidewalls of each rounded corner structure 22b are at right angles, the number of rounded corner structures 22b in any pre-pierced hole 22 is a multiple of two, and at least four, for example, six or eight, etc. Therefore, the distance between the two planing cutters 250 is adjustable, which allows for planing operations on fillet structures 22b with different distances. Thus, compared to the prior art method that can only plane individual fillet structures 22b one by one, the metal planing apparatus 10 provided in this application can improve processing efficiency by 50% during the planing process.

[0024] like Figures 2 to 5 As shown, in one embodiment, the tool holder 100 includes a base 110, a replacement head 120, and a locking cover 130. An adjustment drive 210 is disposed within the base 110. The main slider 230 and two side sliders 240 are slidably disposed within the replacement head 120. The adjustment shaft 220 includes a first shaft portion and a second shaft portion. The first shaft portion is rotatably disposed within the base 110 and is connected to the output shaft of the adjustment drive 210. The second shaft portion is rotatably disposed within the replacement head 120 and is screwed to the main slider 230. The locking cover 130 is rotatably disposed at the bottom of the base 110 and is screwed to the replacement head 120 to fix the replacement head 120 to the bottom of the base 110 and to connect the second shaft portion with the first shaft portion.

[0025] It should be noted that since the planer 250 is used to perform planing operations on the metal workpiece 20, the planer 250 will experience wear and needs to be disassembled and sharpened at certain intervals. Alternatively, when the shape of the metal workpiece 20 is different, such as machining different styles of metal workpiece 20, the size of the pre-drilled hole 22 will be inconsistent, thus requiring the use of different models of planer 250. Therefore, the planer 250 and the side slide 240 need to be detachably mounted. Specifically, the base 110 is a fixed structure fixedly mounted on the lathe, and the replacement head 120 is detachably mounted relative to the base 110. For example, the locking cover 130 is rotatably mounted on the bottom of the base 110 and can rotate freely relative to the base 110. After the replacement head 120 is mated to the bottom of the base 110, the locking cover 130 is screwed onto the replacement head 120, and the locking cover 130 locks the replacement head 120 securely to the base 110. The adjusting drive component 210 is located within the base 110, while the main slider 230 and the two side sliders 240 are located within the replacement head 120. Furthermore, the adjusting shaft 220 consists of a first shaft portion and a second shaft portion, with the first shaft portion located within the base 110 and the second shaft portion located within the replacement head 120. Thus, when the replacement head 120 is fixed to the bottom of the base 110, the second shaft portion is connected to the first shaft portion. Therefore, when the planer cutter 250 needs to be disassembled, only the replacement head 120 needs to be removed from the base 110, facilitating the replacement of the two planer cutters 250 and adjustment of their position and distance.

[0026] like Figure 3 , Figure 4 As shown, in one embodiment, a positioning protrusion 140 is provided on the base 110, and a positioning recess 121 is provided on the replacement head 120. The positioning protrusion 140 is used to fit into the positioning recess 121.

[0027] It should be noted that, in order to improve the assembly accuracy between the replacement head 120 and the base 110 and ensure that the first shaft and the second shaft can be assembled coaxially, a positioning protrusion 140 is provided at the bottom of the base 110 and a positioning recess 121 is provided on the replacement head 120, so that the positioning protrusion 140 and the positioning recess 121 can be fitted and inserted, which facilitates the quick installation of the replacement head 120 onto the base 110.

[0028] like Figure 3 , Figure 5 , Figure 6 As shown, in one embodiment, the second shaft includes a docking shaft 221 and a screw 222 connected to each other. The docking shaft 221 is rotatably disposed in the replacement head 120, and one end of the docking shaft 221 extends into the positioning recess 121. The screw 222 is screwed to the main slider 230.

[0029] It should be noted that the docking shaft 221 is rotatably mounted inside the replacement head 120, with one end of the docking shaft 221 extending to the inner wall of the positioning recess 121 to facilitate connection between the first shaft and the docking shaft 221. For example, to improve the rotational stability of the docking shaft 221, components such as linear bearings and ball bearings can be installed inside the replacement head 120, and the docking shaft 221 can be fitted into the linear bearings or ball bearings. The screw 222 is coaxially and integrally formed at the bottom end of the docking shaft 221. The screw 222 is screwed to the main slider 230. Thus, when the first shaft drives the docking shaft 221 to rotate, it drives the screw 222 to rotate, thereby causing the main slider 230 to slide vertically within the replacement head 120.

[0030] like Figure 3 , Figure 6 As shown, in one embodiment, a slanted top block 231 is provided on each of the two sides of the main slider 230 that are facing each other, and a slanted top groove 241 is provided on the side of the two side sliders 240 that are close to each other. The two slanted top blocks 231 are slidably disposed in the two slanted top grooves 241 in a one-to-one correspondence.

[0031] It should be noted that the inclined ejector block 231 has a T-shaped cross-section, and correspondingly, the inclined ejector groove 241 also has a T-shaped cross-section. The inclined ejector block 231 is slidably installed within the inclined ejector groove 241. Furthermore, the angle between the extension direction of the inclined ejector block 231 and the axial direction of the screw 222 is less than 90°. Thus, when the main slider 230 slides down within the replacement head 120, the inclined ejector block 231 pushes against the inclined ejector groove 241, causing the two side sliders 240 to move away from each other. When the main slider 230 slides up within the replacement head 120, the inclined ejector block 231 pushes against the inclined ejector groove 241, causing the two side sliders 240 to move closer to each other. Ultimately, this causes the two planing cutters 250 mounted on the side sliders 240 to move closer or further apart, making them suitable for planing the fillet structure 22b of pre-pierced holes 22 of different sizes.

[0032] like Figure 2 , Figure 3 , Figure 6 As shown, in one embodiment, a support column 260 is provided at the bottom of the side slider 240, the support column 260 extends from the bottom of the replacement head 120, and the cutting tool 250 is disposed on the support column 260.

[0033] It should be noted that the support column 260 and the side slide block 240 are integrally formed. To facilitate the fixing of the planer cutter 250 to the side slide block 240, the support column 260 is provided at the bottom of the side slide block 240. The support column 260 has several screw holes, and the planer cutter 250 is fixedly mounted on the support column 260 by screws passing through these screw holes.

[0034] like Figure 3 , Figure 6As shown, in one embodiment, the adjustment assembly 200 further includes a limiting stud 271 and a limiting block 272. The second shaft portion is coaxially provided with a limiting screw hole 2201 that passes through the docking shaft 221 and extends into the screw 222. The limiting stud 271 is screwed into the limiting screw hole 2201. The limiting block 272 is slidably disposed on the screw 222 along the axial direction, and the limiting block 272 is rotatably connected to the limiting stud 271. The limiting block 272 is used to abut against the main slider 230.

[0035] It should be noted that when the main slider 230 slides upward within the replacement head 120, the two side sliders 240 move closer to each other, that is, the two planing cutters 250 move closer to each other. To avoid collision between the two planing cutters 250, the solution of this embodiment is provided. Specifically, a limiting screw hole 2201 is provided in the second shaft portion, wherein the limiting screw hole 2201 is located at the axial center of the second shaft portion. Further, the limiting screw hole 2201 extends from the end of the docking shaft 221 into the screw rod 222, so the docking shaft 221 is penetrated by the limiting screw hole 2201. The limiting stud 271 is screwed into the limiting screw hole 2201. Further, the limiting block 272 is slidably mounted on the screw rod 222, and the limiting block 272 is rotatably connected to the limiting stud 271. For example, a groove 2221 is formed along the axial direction on the screw 222, and a limiting block 272 is slidably disposed within the groove 2221, allowing the limiting block 272 to reciprocate along the axial direction of the screw 222. Furthermore, the bottom end of the limiting stud 271 passes through the limiting block 272, allowing the limiting block 272 to rotate relative to the limiting stud 271. Thus, by inserting a screwdriver through the limiting screw hole 2201 to apply torque to the limiting stud 271, the limiting stud 271 rotates and slides up and down along the axial direction relative to the limiting screw hole 2201, thereby causing the limiting block 272 to follow suit. A portion of the limiting block 272 extends out of the screw 222 to limit the movement of the main slider 230. When the main slide block 230 rises, it drives the two side slide blocks 240 to move closer together. By adjusting the position of the limiting stud 271 within the limiting screw hole 2201, the position of the limiting block 272 can be adjusted, thereby adjusting the maximum rising position of the main slide block 230, which is also the maximum position where the side slide blocks 240 move closer together. This prevents the planer cutters 250 mounted on the two side slide blocks 240 from colliding. It is particularly important to note that the replacement head 120 is a detachable structure. During the replacement and installation of the planer cutters 250, the minimum distance between the two planer cutters 250 can be adjusted, thus facilitating adjustment.

[0036] like Figure 3 , Figure 4 , Figure 7As shown, in one embodiment, the first shaft includes a sleeve shaft 223, a telescopic shaft 224, and a spring 225. The sleeve shaft 223 is rotatably disposed within the base 110, and the telescopic shaft 224 is slidably disposed within the sleeve shaft 223 along the axial direction. The spring 225 abuts against the sleeve shaft 223 and the telescopic shaft 224 respectively. The spring 225 is used to push the telescopic shaft 224, so that one end of the telescopic shaft 224 extends out from the positioning protrusion 140 to engage with the docking shaft 221.

[0037] It should be noted that when the replacement head 120 is fixed to the bottom of the base 110 by the locking cover 130, the first shaft is configured as shown in this embodiment to ensure a reliable connection between the docking shaft 221 and the first shaft portion. Specifically, the sleeve shaft 223 is rotatably mounted in the base 110 via ball bearings. The sleeve shaft 223 has six holes in its axial direction, and the telescopic shaft 224 is a six-sided prism structure that fits through the six holes. A spring 225 is installed inside the telescopic shaft 224, and the spring 225 abuts against both the telescopic shaft 224 and the sleeve shaft 223. Thus, the spring 225 pushes against the telescopic shaft 224, causing the telescopic shaft 224 to tend to extend from the bottom end face of the positioning protrusion 140. When the replacement head 120 is fixed by the locking cover 130, a portion of the telescopic shaft 224 is inserted into the docking shaft 221 for clamping and fixing.

[0038] like Figure 3 , Figure 5 , Figure 6 As shown, in one embodiment, a slot 2211 is provided on the end face of the docking shaft 221, and the telescopic shaft 224 is adapted to be inserted into the slot 2211.

[0039] It should be noted that the telescopic shaft 224 has a hexagonal cross-section, and correspondingly, the slot 2211 has a hexagonal hole structure. Thus, the telescopic shaft 224 fits snugly into the slot 2211, securing it firmly to the mating shaft 221, thereby allowing the sleeve shaft 223 to stably drive the mating shaft 221 to rotate. Finally, the distance between the two planer cutters 250 is adjusted.

[0040] like Figure 3 As shown, in one embodiment, the first shaft portion further includes a gear shaft 226 and a torque sensor 227. The gear shaft 226 is rotatably disposed within the base 110, and the torque sensor 227 is disposed on one end of the gear shaft 226, with the detection end of the torque sensor 227 connected to one end of the sleeve shaft 223.

[0041] It should be noted that the gear shaft 226 is rotatably mounted within the base 110 via ball bearings. Thus, when the adjusting drive 210 drives the gear shaft 226 to rotate, the gear shaft 226 drives the sleeve shaft 223 to rotate via the torque sensor 227, ultimately allowing the distance between the two planer cutters 250 to be adjusted, increasing or decreasing. It is important to note that the purpose of the torque sensor 227 is to ensure that the controller uses the minimum distance between the two planer cutters 250 as its origin. Specifically, when the gear shaft 226 drives the sleeve shaft 223 to rotate via the torque sensor 227, causing the two planer cutters 250 to approach each other, before the two planer cutters reach their minimum distance, the torque fed back by the torque sensor 227 will remain within a relatively constant range because the sleeve shaft 223 can still rotate. When the two planer cutters 250 are at their minimum distance, the main slide block 230 is held in place by the limit block 272 and cannot rise further. Therefore, the mating shaft 221 and the screw 222 cannot continue to rotate, meaning the sleeve shaft 223 cannot continue to rotate. At this time, the gear shaft 226 continues to rotate, causing the torque sensor 227 to increase sharply. Thus, the controller can determine that the two planer cutters 250 are at their minimum distance, i.e., at the starting position, based on the sharply increased torque value of the torque sensor 227. Next, the two planer cutters 250 can be driven to separate by the corresponding distance according to the actual distance between the two rounded corner structures 22b in the pre-pierced hole 22. Furthermore, it should be noted that the premise for the torque sensor 227 to provide feedback to the controller on the starting position of the two planer cutters 250 is to use the limit block 272 to set the minimum limit position of the two planer cutters 250. Therefore, when changing the planer cutter 250, it is particularly important to adjust the position of the limit stud 271 according to the distance between the rounded corner structures 22b in the pre-drilled hole 22, and then adjust the position of the limit block 272, so as to ensure that the controller can accurately determine the starting distance (i.e., the minimum distance) of the two planer cutters 250.

[0042] like Figure 3 , Figure 7 As shown, in one embodiment, the first shaft portion further includes a screw shaft 228, which is rotatably disposed within the base 110. The outer side wall of the screw shaft 228 is provided with a thread, and the outer side wall of the gear shaft 226 is provided with a plurality of gear teeth. The thread meshes with the gear teeth, and the output shaft of the adjusting drive member 210 is connected to the screw shaft 228.

[0043] It should be noted that the screw shaft 228 is rotatably mounted in the base 110 via ball bearings, such that the thread of the screw shaft 228 meshes with the teeth of the gear shaft 226. The axial direction of the screw shaft 228 is perpendicular to the axial direction of the gear shaft 226, forming a worm gear structure between them. Furthermore, the output shaft of the adjusting drive 210 is connected to the screw shaft 228. Thus, the adjusting drive 210 drives the screw shaft 228 to rotate, which in turn drives the gear shaft 226 to rotate, ultimately adjusting the distance between the two planer cutters 250. By setting the screw shaft 228 and gear shaft 226 as a worm gear structure, it is ensured that only the screw shaft 228 can drive the gear shaft 226, achieving unidirectional drive. Since the two planer cutters 250 need to simultaneously plane two rounded corner structures 22b, they will be subjected to a certain compressive force. By setting up a worm gear structure, the stability of the two planer cutters 250 can be effectively improved, and the reverse drive of the gear shaft 226 to the screw shaft 228 can be avoided.

[0044] like Figure 3 , Figure 7 As shown, in one embodiment, a conductive slip ring 229 is also provided in the base 110. The output end of the conductive slip ring 229 is connected to the end of the gear shaft 226 away from the torque sensor 227. The gear shaft 226 has a shaft hole 2261. The output end of the conductive slip ring 229 is used to be electrically connected to the torque sensor 227 through the shaft hole 2261.

[0045] It should be noted that, since the torque sensor 227 needs to rotate synchronously with the gear shaft 226, a conductive slip ring 229 is installed on the end of the gear shaft 226 away from the torque sensor 227 to ensure stable rotation of the torque sensor 227 without obstruction by the wires. The output wire of the conductive slip ring 229 is connected to the torque sensor 227. In this way, the output shaft of the conductive slip ring 229 rotates synchronously with the gear shaft 226, ensuring that the electrical signal from the torque sensor 227 is led out through the conductive slip ring 229.

[0046] like Figure 8 As shown, in one embodiment, the metal cutting device 10 further includes a machine base 310, a material carrying drive unit 320, a material carrying plate 330, a cutting drive unit 340, and a lifting plate 350. The material carrying drive unit 320 and the cutting drive unit 340 are both disposed on the machine base 310. The material carrying plate 330 is disposed on the material carrying drive unit 320 and is used to support the metal workpiece 20. The lifting plate 350 is disposed on the cutting drive unit 340, and the base 110 is disposed on the lifting plate 350.

[0047] It should be noted that, for example, the material-carrying drive unit 320 is a combination structure of two motor-driven lead screw modules. Specifically, the first lead screw module is mounted on the machine base 310, and the second lead screw module is mounted on the first lead screw module. The driving directions of the two lead screw modules are perpendicular to each other relative to the horizontal plane. Furthermore, the planing drive unit 340 is also a motor-driven lead screw module, used to drive the base 110 to move vertically. Thus, after the metal workpiece 20 is placed on the material-carrying plate 330, the material-carrying drive unit 320 and the planing drive unit 340 work together to drive the planing cutter 250 to plan the fillet structures 22b of the pre-pierced hole 22. Furthermore, the distance between the two planing cutters 250 can be gradually increased from the minimum limit distance, thus making it suitable for planing the fillet structures 22b of pre-pierced holes 22 of different sizes. It should be noted that the planer 250 will be machined into a smaller structure according to the size of the pre-drilled hole 22 to ensure that the two planers 250 can pass through the pre-drilled hole 22 to achieve the planing operation when the minimum limit distance is between them.

[0048] like Figure 8 As shown, in one embodiment, the metal sawing device 10 further includes a rotary motor 360, a support plate 370, and a rotating plate 380. The support plate 370 is disposed on the lifting plate 350, the rotary motor 360 is disposed on the support plate 370, the rotating plate 380 is rotatably disposed on the support plate 370, and the rotating plate 380 is connected to the output shaft of the rotary motor 360. The base 110 is disposed at the bottom of the rotating plate 380.

[0049] It should be noted that, in order to further utilize the fillet structure 22b of the pre-pierced hole 22 of the metal workpiece 20 for planing machining, for example, when the inner wall of the pre-pierced hole 22 is not aligned with the driving direction of the material drive unit 320, in order to ensure that the planing cutter 250 can accurately fit against the inner wall of the pre-pierced hole 22 for planing machining of the fillet structure 22b, a rotary motor 360 is provided to drive the rotating plate 380 to rotate, thereby driving the base 110 to rotate, ultimately allowing the planing cutter 250 to rotate relative to the vertical direction to adjust the angular position of the planing cutter 250. More specifically, in this application, the material drive unit 320 is used to drive the material plate 330 to move along the X-axis and Y-axis, and the planing drive unit 340 is used to drive the lifting plate 350 to move along the Z-axis, wherein the X-axis, Y-axis, and Z-axis are perpendicular to each other. Furthermore, the rotary motor 360 is used to drive the rotating plate 380 to rotate, wherein the rotation axis of the rotating plate 380 is parallel to the Z-axis direction.

[0050] The above-described embodiments are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention patent. Unless otherwise specifically defined, the installation / fixing / setting mentioned in this invention can be understood as including, but not limited to, locking and fixing with screws / bolts, welding, or bonding with adhesives, wherein the adhesives used can be commercially available finished products. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A metal planing device, characterized in that, include: Knife holder; and An adjustment assembly includes an adjustment drive, an adjustment shaft, a main slider, two side sliders, and two planer cutters. The two side sliders are slidably disposed within the tool holder at intervals. The two planer cutters are respectively disposed on the two side sliders, with their cutting edges extending from the bottom of the tool holder. The main slider is slidably disposed within the tool holder in a vertical direction, and both side sliders are slidably connected to the main slider. The adjustment shaft is rotatably disposed within the tool holder and screwed to the main slider. The adjustment drive is disposed within the tool holder, and its output shaft is connected to the adjustment shaft. The adjustment drive drives the adjustment shaft to rotate, thereby driving the main slider to move the two side sliders closer together or further apart, thus making the distance between the cutting edges of the two planer cutters adjustable.

2. The metal planing apparatus according to claim 1, characterized in that, The tool holder includes a base, a replacement head, and a locking cover. The adjustment drive is disposed within the base. The main slider and the two side sliders are slidably disposed within the replacement head. The adjustment shaft includes a first shaft portion and a second shaft portion. The first shaft portion is rotatably disposed within the base and is connected to the output shaft of the adjustment drive. The second shaft portion is rotatably disposed within the replacement head and is screwed to the main slider. The locking cover is rotatably disposed at the bottom of the base and is screwed to the replacement head to fix the replacement head to the bottom of the base and to connect the second shaft portion with the first shaft portion.

3. The metal planing apparatus according to claim 2, characterized in that, The base is provided with a positioning protrusion, and the replacement head is provided with a positioning recess. The positioning protrusion is used to fit into the positioning recess.

4. The metal planing apparatus according to claim 3, characterized in that, The second shaft includes a docking shaft and a screw connected to each other. The docking shaft is rotatably disposed inside the replacement head, and one end of the docking shaft extends into the positioning recess. The screw is screwed to the main slider.

5. The metal planing apparatus according to claim 4, characterized in that, The adjustment assembly further includes a limiting stud and a limiting block. The second shaft portion is coaxially provided with a limiting screw hole that passes through the docking shaft and extends into the screw. The limiting stud is screwed into the limiting screw hole. The limiting block is slidably disposed on the screw along the axial direction and is rotatably connected to the limiting stud. The limiting block is used to abut against the main slider.

6. The metal planing apparatus according to claim 4, characterized in that, The first shaft includes a sleeve shaft, a telescopic shaft, and a spring. The sleeve shaft is rotatably disposed within the base, and the telescopic shaft is slidably disposed within the sleeve shaft along the axial direction. The spring abuts against the sleeve shaft and the telescopic shaft respectively, and the spring is used to push the telescopic shaft so that one end of the telescopic shaft extends out from the positioning protrusion to engage with the docking shaft.

7. The metal planing apparatus according to claim 6, characterized in that, A slot is provided on the end face of the docking shaft, and the telescopic shaft is used to fit into the slot.

8. The metal planing apparatus according to claim 6, characterized in that, The first shaft also includes a gear shaft and a torque sensor. The gear shaft is rotatably disposed within the base, and the torque sensor is disposed on one end of the gear shaft, with the detection end of the torque sensor connected to one end of the sleeve shaft.

9. The metal planing apparatus according to claim 8, characterized in that, The first shaft also includes a screw shaft, which is rotatably disposed within the base. The outer side wall of the screw shaft is provided with a thread, and the outer side wall of the gear shaft is provided with a plurality of gear teeth. The thread meshes with the gear teeth, and the output shaft of the adjusting drive is connected to the screw shaft.

10. The metal planing apparatus according to claim 8, characterized in that, The base is also provided with a conductive slip ring. The output end of the conductive slip ring is connected to the end of the gear shaft away from the torque sensor. The gear shaft has a shaft hole, and the output end of the conductive slip ring is used to electrically connect to the torque sensor through the shaft hole.

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