Adaptive double-end milling machine

Abstract

The application belongs to the technical field of double-head milling machines, and particularly relates to a self-adaptive double-head milling machine, which comprises a milling machine device, an adapter is internally arranged in the milling machine device, a front-rear adapting mechanism is internally arranged in the adapter, the front-rear adapting mechanism is adapted to the length of a workpiece, a left-right adapting mechanism is arranged at the top of the front-rear adapting mechanism, and the left-right adapting mechanism is adapted to the width of the workpiece. The front-rear adapting mechanism can adjust the spacing of the bearing column in the front-rear direction, so that the double-head milling machine can be adapted to the length of the workpiece, and the applicability of the equipment is improved. The left-right adapting mechanism can adjust the spacing of the bearing column in the left-right direction, so that the double-head milling machine can be adapted to the width of the workpiece, and the applicability of the equipment is further improved. With the synergistic effect of the front-rear adapting mechanism and the left-right adapting mechanism, stable clamping of workpieces with different lengths and widths can be realized, the clamping assembly does not need to be replaced, the machining range of the equipment is effectively expanded, the operation complexity is reduced, and the applicability is more optimal.

Description

Technical Field

[0001] This invention relates to the field of double-head milling machine technology, and more particularly to an adaptive double-head milling machine. Background Technology

[0002] A double-head milling machine is a specialized machining equipment with symmetrical milling assemblies on both sides. It typically includes a machine base, a feed slide mounted on top of the machine base, milling assemblies symmetrically arranged on both sides of the machine base, and a fixing mechanism for workpiece clamping. The fixing mechanism generally consists of a support arm, a rotatable support beam, a pressure cylinder fixed to the support beam, and a support column fixed to the feed slide. The workpiece is clamped by the downward pressure of the pressure cylinder and the upward support of the support column. The workpiece is cut synchronously by the two milling cutters on both sides, achieving efficient machining of both sides of the workpiece. It is widely used in industries such as machinery manufacturing, automotive parts processing, aerospace parts production, mold processing, and mass production of hardware accessories.

[0003] In the existing structural design of double-head milling machines, the electric indexing plate is usually fixedly installed on the top surface of the feed slide. The top of the plate has a support plate with multiple insertion holes. The bearing column is vertically installed on the support plate by cooperating with the insertion holes. It works in conjunction with the pressure cylinder on the support beam to clamp and fix the workpiece. However, the position of the bearing column on the support plate is inconvenient to adjust, and the adjustment flexibility is extremely poor. It cannot flexibly adapt to different specifications of workpieces. Moreover, the chips generated by milling are easy to fall into the insertion holes, which is not only difficult to clean thoroughly, but also leads to the bearing column not being installed firmly, affecting the milling quality.

[0004] Therefore, we propose an adaptive double-head milling machine. Summary of the Invention

[0005] To overcome the above-mentioned shortcomings in the prior art, the present invention aims to provide an adaptive double-head milling machine with a support column that can be flexibly adjusted in the front-back and left-right directions to adapt to workpieces of different lengths and widths, effectively preventing chips from accumulating in the insertion hole and reducing the difficulty of equipment maintenance.

[0006] To achieve the above-mentioned objectives, the technical solution adopted by this invention is as follows:

[0007] An adaptive double-head milling machine includes a milling machine device. An adapter is installed inside the milling machine device. The adapter has a front-to-back fitting mechanism that adapts to the length of the workpiece. A left-to-right fitting mechanism is installed on top of the front-to-back fitting mechanism and adapts to the width of the workpiece. A strain mechanism is provided on the front-to-back fitting mechanism, and an isolation mechanism is provided at the bottom of the front-to-back fitting mechanism. The strain mechanism and the isolation mechanism cooperate to reduce the load on the front-to-back fitting mechanism. A separation mechanism is provided above the left-to-right fitting mechanism. The milling machine device and the separation mechanism cooperate to reduce the load on the left-to-right fitting mechanism. A chip removal mechanism is provided on top of the adapter to remove chips.

[0008] Preferably, the milling machine includes a machine base, a feed slide is mounted on the top surface of the machine base, a support vertical arm is fixedly mounted at the rear end of the top surface of the feed slide, a support beam is rotatably mounted on the top surface of the support vertical arm, three pressure cylinders are fixedly mounted at equal intervals on the top surface of the support beam, the bottom ends of the protruding rods inside the three pressure cylinders all penetrate downward through the support beam, the three pressure cylinders are, from front to back, a front pressure cylinder, a middle pressure cylinder, and a rear pressure cylinder, an electric indexing plate is fixedly mounted on the top surface of the feed slide, the electric indexing plate is located directly below the middle pressure cylinder, four bearing columns are mounted on the top of the electric indexing plate, the four bearing columns and the middle pressure cylinder cooperate to clamp and fix the workpiece, two auxiliary worktables are mounted on the top surface of the feed slide, the two auxiliary worktables are symmetrically distributed on the front and rear sides of the electric indexing plate, the two auxiliary worktables are respectively located directly below the front pressure cylinder and the rear pressure cylinder, and milling assemblies are symmetrically mounted on the left and right sides of the machine base.

[0009] Preferably, the adapter includes an adapter box, with the rotating shaft at the top of the electric indexing plate fixedly connected to the middle position of the bottom surface of the adapter box. The bottom surface of the adapter box is square, and the top surface of the adapter box is open. A first rounded chamfer is provided at the corner between two adjacent sides of the adapter box, and a second rounded chamfer is provided at the corner between the side and top surfaces of the adapter box. The front and rear adapter mechanisms, left and right adapter mechanisms, strain mechanism, isolation mechanism, and separation mechanism are all located inside the adapter box, and the slag discharge mechanism is located at the top of the adapter box.

[0010] Preferably, the front and rear adapter mechanism includes a front screw and a rear screw. The front end of the front screw is movably inserted into the middle of the front side of the adapter box, and the rear end of the rear screw is movably inserted into the middle of the rear side of the adapter box. The rear end of the front screw and the front end of the rear screw are coaxially and fixedly connected together. The threads on the front and rear screws are in opposite directions. The distance from the connection point between the front and rear screws to the rear side of the adapter box cavity is equal to the distance from the connection point between the front and rear screws to the front side of the adapter box cavity. The front end of the front screw extends from the front side of the adapter box and is fixedly connected to an adjustment motor. The adjustment motor is connected to the front side of the adapter box. The connection consists of a front screw and a rear screw, both externally threaded with a support platform. Both support platforms are slidably inserted into the interior of the adapter box. The two support platforms are symmetrical about the connection point between the front and rear screws. Two T-slots are symmetrically formed on the bottom surface of each support platform about the axis of the front screw. The T-slots on the two support platforms correspond one-to-one. A single T-shaped track slides through the two aligned T-slots on the two support platforms. The T-shaped track is fixedly connected to the bottom surface of the adapter box's inner cavity. A fixing hole is provided on the front side of the adapter box, and a ranging probe is fixedly inserted into the fixing hole. The rear end of the ranging probe points towards the front side of the support platform outside the front screw.

[0011] Preferably, the T-shaped track can move up and down inside the T-shaped groove, and there is a distance between the bottom surface of the support platform and the bottom surface of the inner cavity of the adapter box.

[0012] Preferably, the left and right adapter mechanism includes four vertical plates, which are fixedly connected to the four ends of the two support platforms. A left screw located in the middle is movably inserted into the left vertical plate of the support platform, and a right screw located in the middle is movably inserted into the right vertical plate of the support platform. A driven bevel gear is coaxially fixedly connected between the right end of the left screw and the left end of the right screw. An installation groove located in the middle is opened on the top surface of the support platform. An adapter motor is fixedly installed inside the installation groove. A drive bevel gear is fixedly connected to the top of the output shaft of the adapter motor. The drive bevel gear meshes with the driven bevel gear. Threaded holes are opened on the four support columns. The two left screws and the two right screws are respectively threaded into the threaded holes on the four support columns. The two support columns above the same support platform are symmetrical about the center plane of the support platform. A monitoring probe located below the right screw is fixedly inserted into the right vertical plate of the support platform. The monitoring probe corresponds to the support column.

[0013] Preferably, the strain mechanism includes a pre-strain hole, guide angle steel, and a post-strain hole. The pre-strain hole is located on the front side of the adapter box and in the middle position. The post-strain hole is located on the rear side of the adapter box and aligned with the pre-strain hole. Both the pre-strain hole and the post-strain hole are elongated holes with arc-shaped upper and lower ends. There are two guide angle steels, which are symmetrically fixed to the front side of the adapter box about the pre-strain hole. The front screw is movably inserted into the pre-strain hole, and the rear screw is movably inserted into the rear screw. Inside the strain relief hole, both the strain relief hole and the strain relief hole are slidably inserted with limit blocks. The two limit blocks are rotatably sleeved on the front end of the front screw and the rear end of the rear screw, respectively. A limit plate is fixedly connected to the rear side of the limit block at the rear end of the rear screw. The limit plate is slidably connected to the rear side of the adapter box. A limit plate is fixedly connected to the front side of the limit block at the front end of the front screw. The limit plate is slidably inserted between two guide angle steels. The adjustment motor bolt is installed on the front side of the limit plate.

[0014] Preferably, the isolation mechanism includes four positioning slots, which are divided into two groups of two. The two groups of positioning slots are respectively opened on the bottom surface of two support platforms. The two positioning slots in the same group are symmetrical about the center plane of the support platform. A piston plate is slidably inserted into the positioning slot. Two fixed sliding holes are symmetrically opened on the piston plate. An adapter slide rod is slidably inserted into the fixed sliding hole. A fixed end cap is fixedly connected to the top of the adapter slide rod. A force spring is sleeved on the outside of the adapter slide rod. The top of the force spring abuts against the bottom surface of the fixed end cap, and the bottom of the force spring abuts against the top surface of the piston plate. Triangular plates are fixedly installed on both sides of the piston plate. A roller is movably installed between the two triangular plates. The roller rolls on the bottom surface of the inner cavity of the adapter box.

[0015] Preferably, the separation mechanism includes four separation grooves, each formed on the bottom surface of one of the four supporting columns. The cross-section of each separation groove is rectangular. Separation grooves are formed on both the front and rear surfaces of the inner cavity of each groove. A separation column groove is formed on the top surface of the inner cavity of each groove, located in the middle. A separation slider is slidably inserted into the inner groove. A threaded hole passes through both the supporting column and the separation slider. A buffer hole is formed at the opening of the threaded hole on the surface of the supporting column. A left screw and a right screw are inserted into the buffer holes on the corresponding supporting columns. Separation guide rails are fixedly connected to both the front and rear surfaces of the separation slider, and these guide rails are slidably inserted into the separation grooves. A separation column located in the middle is fixedly connected to the top surface of the slider. A separation spring is sleeved on the outside of the separation column. The top of the separation column is inserted into the inside of the separation column groove. The bottom end of the separation spring abuts against the top surface of the separation slider. The top end of the separation spring abuts against the top surface of the inner cavity of the separation groove. A sealing cap is threadedly fitted to the bottom end of the bearing column. A displacement insert plate located in the middle is fixedly connected to the bottom surface of the sealing cap. Two displacement slots are opened on the top surface of each bearing platform. The two displacement slots are symmetrically distributed on both sides of the mounting groove. The bottom end of the displacement insert plate slides into the corresponding displacement slot. There is a distance between the bottom surface of the bearing column and the top surface of the bearing platform.

[0016] Preferably, the slag discharge mechanism includes downward-facing right-angle hooks and an elastic frame. The number of downward-facing right-angle hooks is eight, and the eight downward-facing right-angle hooks are divided into four groups of two. The four groups of downward-facing right-angle hooks are fixedly installed on the four sides of the adapter box. The elastic frame is movably sleeved on the outside of the adapter box. Two lower insertion holes are opened on each of the four sides of the elastic frame. The downward-facing right-angle hooks are movably inserted into the lower insertion holes. An elastic pad is fixedly connected to the top of the elastic frame. A central window is provided in the middle of the top surface of the elastic pad. Four supporting columns are inserted into the central window. An upper insertion hole is opened on the elastic pad. An upward-facing right-angle hook is fixedly connected to the surface of the supporting column and is inserted into the upper insertion hole.

[0017] Preferably, the elastic pad is in a stretched state, with the center of the elastic pad bulging upwards.

[0018] The beneficial effects of this invention are as follows:

[0019] 1. This invention allows the front and rear adapter mechanisms to adjust the spacing of the bearing columns in the front-rear direction, enabling the double-head milling machine to adapt to the length of the workpiece and improving the applicability of the equipment. The left and right adapter mechanisms allow the left and right adapter mechanisms to adjust the spacing of the bearing columns in the left-right direction, enabling the double-head milling machine to adapt to the width of the workpiece, further enhancing the applicability of the equipment. With the synergistic effect of the front-rear and left-right adapter mechanisms, stable clamping of workpieces of different lengths and widths can be achieved without replacing the clamping components, effectively expanding the processing range of the equipment, reducing operational complexity, and improving its applicability.

[0020] 2. This invention, through the design of a strain gauge mechanism, enables the front and rear adapter mechanisms to not only adapt to the workpiece length but also move vertically. This ensures that the workpiece weight and clamping force act directly on the support platform, preventing excessive force on the front and rear screws, thus protecting them from bending deformation due to excessive stress. The isolation mechanism applies an upward lifting force to the support platform, keeping it detached from the bottom of the adapter box cavity when there is no workpiece on top of the support column. This allows the front and rear adapter mechanisms to adjust the position of the support platform with minimal power, saving energy. The separation mechanism directly transfers the load borne by the support column to the support platform, significantly reducing the force on the left and right screws, protecting them, and significantly improving clamping stability and milling accuracy, while extending the service life of key components of the equipment.

[0021] 3. In this invention, the elastic pad of the slag discharge mechanism is designed to be connected and engaged with the adapter box and the bearing column through downward right-angle hooks and upward right-angle hooks, and the center of the elastic pad is raised upward. This design can guide the chips generated by milling to slide downward and outward automatically, avoiding the accumulation of chips in the processing area or into the adapter box. It also prevents chips from wearing the screw threads and clogging the mounting holes, ensuring the smooth operation of each adjustment component, greatly reducing the difficulty of chip cleaning, and reducing equipment maintenance costs. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 For the present invention Figure 1 A three-dimensional structural diagram of the adapter;

[0024] Figure 3 For the present invention Figure 2 A schematic diagram of the split structure;

[0025] Figure 4 For the present invention Figure 3 A schematic diagram of the split structure of the adapter;

[0026] Figure 5 For the present invention Figure 4 A three-dimensional structural diagram of the adapter box;

[0027] Figure 6 For the present invention Figure 4 A three-dimensional structural diagram of the front and rear adapter mechanism;

[0028] Figure 7 For the present invention Figure 6 A schematic diagram of the split structure;

[0029] Figure 8 For the present invention Figure 7A three-dimensional structural diagram of the central support platform;

[0030] Figure 9 For the present invention Figure 8 A schematic diagram of the three-dimensional structure from another perspective;

[0031] Figure 10 For the present invention Figure 7 A three-dimensional structural diagram of the central isolation mechanism;

[0032] Figure 11 For the present invention Figure 7 A schematic diagram of the split structure of the separation mechanism;

[0033] Figure 12 For the present invention Figure 11 A schematic diagram of the three-dimensional structure from another perspective;

[0034] Figure 13 For the present invention Figure 12 A three-dimensional structural diagram of the central load-bearing column;

[0035] Figure 14 For the present invention Figure 3 A three-dimensional structural diagram of the slag discharge mechanism.

[0036] In the diagram: 1. Milling machine; 101. Machine base; 102. Feed slide; 103. Support arm; 104. Support beam; 105. Material clamping cylinder; 106. Electric indexing plate; 107. Bearing column; 108. Auxiliary worktable; 109. Milling assembly;

[0037] 2. Adapter; 201. Adapter box; 202. First rounded chamfer; 203. Second rounded chamfer;

[0038] 3. Front and rear adapter mechanism; 301. Front screw; 302. Rear screw; 303. Adjustment motor; 304. Support platform; 305. T-slot; 306. T-track; 307. Fixing hole; 308. Distance measuring probe;

[0039] 4. Left and right adapter mechanism; 401. Vertical plate; 402. Left screw; 403. Right screw; 404. Driven bevel gear; 405. Mounting slot; 406. Adapter motor; 407. Drive bevel gear; 408. Threaded hole; 409. Monitoring probe;

[0040] 5. Strain gauge mechanism; 501. Strain gauge front hole; 502. Guide angle steel; 503. Strain gauge rear hole; 504. Limiting block; 505. Limiting rear plate; 506. Limiting front plate;

[0041] 6. Isolation mechanism; 601. Positioning groove; 602. Piston plate; 603. Fixing slide hole; 604. Adaptive slide rod; 605. Fixing end cap; 606. Force spring; 607. Triangular plate; 608. Roller;

[0042] 7. Separation mechanism; 701. Separation groove; 702. Separation slide; 703. Separation column groove; 704. Buffer hole; 705. Separation slider; 706. Separation guide rail; 707. Separation column; 708. Separation spring; 709. Sealing cover; 710. Displacement insert plate; 711. Displacement slot;

[0043] 8. Slag discharge mechanism; 801. Downward right-angle hook; 802. Elastic frame; 803. Lower insertion hole; 804. Elastic pad; 805. Central window; 806. Upper insertion hole; 807. Upward right-angle hook. Detailed Implementation

[0044] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0045] In this embodiment, refer to Figure 1-14 This solution provides an adaptive double-head milling machine, which includes a milling machine device 1. An adapter 2 is installed inside the milling machine device 1. A front and rear adaptation mechanism 3 is installed inside the adapter 2. The front and rear adaptation mechanism 3 is adapted to the length of the workpiece. A left and right adaptation mechanism 4 is installed on the top of the front and rear adaptation mechanism 3. The left and right adaptation mechanism 4 is adapted to the width of the workpiece. A strain mechanism 5 is provided on the front and rear adaptation mechanism 3. An isolation mechanism 6 is provided at the bottom of the front and rear adaptation mechanism 3. The strain mechanism 5 and the isolation mechanism 6 work together to reduce the load on the front and rear adaptation mechanism 3. A separation mechanism 7 is provided above the left and right adaptation mechanism 4. The milling machine device 1 and the separation mechanism 7 work together to reduce the load on the left and right adaptation mechanism 4. A chip removal mechanism 8 is provided on the top of the adapter 2. The chip removal mechanism 8 removes the chips.

[0046] Please see Figure 1The milling machine 1 includes a machine base 101. A feed slide 102 is mounted on the top surface of the machine base 101. A support vertical arm 103 is fixedly mounted at the rear end of the top surface of the feed slide 102. A support beam 104 is rotatably mounted on the top surface of the support vertical arm 103. Three pressure cylinders 105 are fixedly mounted at equal intervals on the top surface of the support beam 104. The bottom ends of the extension rods inside the three pressure cylinders 105 all penetrate downwards through the support beam 104. The three pressure cylinders 105 are arranged from front to back as a front pressure cylinder 105, a middle pressure cylinder 105, and a rear pressure cylinder 105. A feed slide 102 is fixedly mounted on the top surface of the feed slide 102. An electric indexing plate 106 is located directly below the intermediate pressure cylinder 105. Four bearing columns 107 are installed on the top of the electric indexing plate 106. The four bearing columns 107 and the intermediate pressure cylinder 105 cooperate to clamp and fix the workpiece. Two auxiliary worktables 108 are installed on the top surface of the feed slide 102. The two auxiliary worktables 108 are symmetrically distributed on the front and rear sides of the electric indexing plate 106. The two auxiliary worktables 108 are located directly below the front pressure cylinder 105 and the rear pressure cylinder 105, respectively. Milling assemblies 109 are symmetrically installed on the left and right sides of the machine tool base 101.

[0047] The feed slide 102, milling assembly 109, and pressure cylinder 105 are electrically connected to an external control box, which controls the movement of the feed slide 102, milling assembly 109, and pressure cylinder 105.

[0048] The electric indexing plate 106 can rotate with the adapter 2.

[0049] Adapters 2 can also be installed on the two auxiliary worktables 108. The front pressure cylinder 105, the rear pressure cylinder 105, the two auxiliary worktables 108, the middle pressure cylinder 105, and the electric indexing plate 106 work together to clamp and fix the excessively long workpiece.

[0050] Please see Figure 2 , Figure 3 , Figure 4 and Figure 5 The adapter 2 includes an adapter box 201. The rotating shaft of the top of the electric indexing plate 106 is fixedly connected to the middle position of the bottom surface of the adapter box 201. The bottom surface of the adapter box 201 is square, and the top surface of the adapter box 201 is open. A first rounded chamfer 202 is provided at the corner between two adjacent sides of the adapter box 201, and a second rounded chamfer 203 is provided at the corner between the side and the top surface of the adapter box 201. The front and rear adapter mechanism 3, the left and right adapter mechanism 4, the strain mechanism 5, the isolation mechanism 6, and the separation mechanism 7 are all located inside the adapter box 201. The slag discharge mechanism 8 is located at the top of the adapter box 201.

[0051] The first rounded chamfer 202 and the second rounded chamfer 203 increase the contact surface between the adapter box 201 and the slag discharge mechanism 8, preventing the corners on the adapter box 201 from cutting the slag discharge mechanism 8.

[0052] Please see Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 The front and rear adapter mechanism 3 includes a front screw 301 and a rear screw 302. The front end of the front screw 301 is movably inserted into the middle of the front side of the adapter box 201, and the rear end of the rear screw 302 is movably inserted into the middle of the rear side of the adapter box 201. The rear end of the front screw 301 and the front end of the rear screw 302 are coaxially and fixedly connected together. The threads on the front screw 301 and the rear screw 302 are in opposite directions. The distance from the connection point between the front screw 301 and the rear screw 302 to the rear side of the inner cavity of the adapter box 201 is equal to the distance from the connection point between the front screw 301 and the rear screw 302 to the front side of the inner cavity of the adapter box 201. The front end of the front screw 301 extends from the front side of the adapter box 201 and is fixedly connected to an adjustment motor 303. The adjustment motor 303 is connected to the front side of the adapter box 201. Both the front screw 301 and the rear screw 302 are threadedly fitted with a support platform 304. Both support platforms 304 are slidably inserted into the interior of the adapter box 201. The two support platforms 304 are symmetrical about the connection between the front screw 301 and the rear screw 302. Two T-shaped grooves 305 are symmetrically opened on the bottom surface of both support platforms 304 about the axis of the front screw 301. The T-shaped grooves 305 on the two support platforms 304 correspond one to one. The same T-shaped track 306 is slidably inserted inside the two T-shaped grooves 305 aligned front and rear on the two support platforms 304. The T-shaped track 306 is fixedly connected to the bottom surface of the inner cavity of the adapter box 201. A fixing hole 307 is opened on the front side of the adapter box 201. A ranging probe 308 is fixedly inserted into the fixing hole 307. The rear end of the ranging probe 308 points to the front side of the support platform 304 outside the front screw 301.

[0053] The control box is electrically connected to the ranging probe 308, and the control box monitors the position of the support platform 304 in real time through the ranging probe 308.

[0054] The control box is electrically connected to the test motor 303 and the adapter motor 406, and the control box controls the running direction of the test motor 303 and the adapter motor 406.

[0055] The adjustment motor 303 drives the two support platforms 304 to move closer or further apart through the front screw 301 and the rear screw 302, so that the support column 107 can be adapted to the length of the workpiece, thus improving its applicability.

[0056] The T-shaped track 306 can move up and down inside the T-shaped groove 305, and there is a distance between the bottom surface of the support platform 304 and the bottom surface of the inner cavity of the adapter box 201.

[0057] The device, which can move up and down inside the T-slot 305 via the T-shaped track 306, creates conditions for the bottom surface of the support platform 304 to directly abut against the bottom surface of the inner cavity of the adapter box 201. By setting a distance between the bottom surface of the support platform 304 and the bottom surface of the inner cavity of the adapter box 201, the bottom surface of the support platform 304 and the bottom surface of the inner cavity of the adapter box 201 are separated. On the one hand, this reduces wear on the adapter box 201 and the support platform 304, and on the other hand, it reduces adjustment resistance, making the adjustment work smoother.

[0058] Please see Figure 6 , Figure 7 , Figure 8 and Figure 12 The left and right adapter mechanism 4 includes four vertical plates 401, which are fixedly connected to the four ends of the two support platforms 304. A left screw 402 located in the middle is movably inserted into the left vertical plate 401 of the support platform 304, and a right screw 403 located in the middle is movably inserted into the right vertical plate 401 of the support platform 304. A driven bevel gear 404 is coaxially fixedly connected between the right end of the left screw 402 and the left end of the right screw 403. A mounting groove 405 located in the middle is opened on the top surface of the support platform 304, and an adapter motor 406 is fixedly installed inside the mounting groove 405. A drive bevel gear 407 is fixedly connected to the top of the output shaft on the 406. The drive bevel gear 407 meshes with the driven bevel gear 404. Each of the four support columns 107 has a threaded hole 408. The two left screws 402 and the two right screws 403 are threadedly inserted into the threaded holes 408 on the four support columns 107. The two support columns 107 on the same support platform 304 are symmetrical about the center plane of the support platform 304. A monitoring probe 409 located below the right screw 403 is fixedly inserted into the vertical plate 401 on the right end of the support platform 304. The monitoring probe 409 corresponds to the support column 107.

[0059] The control box is electrically connected to the monitoring probe 409, and the control box monitors the position of the support column 107 in real time through the monitoring probe 409.

[0060] Under the control of the control box, the adapter motor 406 drives the left screw 402 and the right screw 403 to rotate by meshing the drive bevel gear 407 and the driven bevel gear 404. The left screw 402 and the right screw 403 drive the corresponding two bearing columns 107 to move closer or further away from each other so as to adapt to the width of the workpiece and make it more applicable.

[0061] Please see Figure 5 , Figure 6 , Figure 7 and Figure 8 The strain mechanism 5 includes a pre-strain hole 501, guide angle steel 502, and a post-strain hole 503. The pre-strain hole 501 is located on the front side of the adapter box 201 and in the middle position. The post-strain hole 503 is located on the rear side of the adapter box 201 and aligned with the pre-strain hole 501. Both the pre-strain hole 501 and the post-strain hole 503 are elongated holes with rounded ends. There are two guide angle steels 502, which are symmetrically fixed to the front side of the adapter box 201 about the pre-strain hole 501. The front screw 301 is movably inserted into the pre-strain hole 501, and the rear screw 302 is movably inserted into the post-strain hole 503. Limiting blocks 504 are slidably inserted into both the pre-strain hole 501 and the post-strain hole 503. The limiting blocks 504 can be slidably inserted into the pre-strain hole 501 and the post-strain hole 503. The hole 503 slides up and down inside, serving as a guide and constraining the axial position of the front screw 301 and the rear screw 302. Two limiting blocks 504 are rotatably sleeved on the front end of the front screw 301 and the rear end of the rear screw 302, respectively. A limiting rear plate 505 is fixedly connected to the rear side of the limiting block 504 at the rear end of the rear screw 302. The limiting rear plate 505 is slidably connected to the rear side of the adapter box 201. A limiting front plate 506 is fixedly connected to the front side of the limiting block 504 at the front end of the front screw 301. The limiting front plate 506 is slidably inserted between two guide angle steels 502. The guide angle steels 502 restrict the limiting front plate 506, constraining the axial position of the front screw 301 and the rear screw 302. The adjustment motor 303 is bolted to the front side of the limiting front plate 506.

[0062] By setting up the strain mechanism 5, when the bearing platform 304 bears the pressure of the workpiece, the bearing platform 304 moves downward together with the front screw 301 and the rear screw 302 until the bearing platform 304 abuts against the bottom surface of the inner cavity of the adapter box 201. This is used to directly transfer the load on the bearing platform 304 to the adapter box 201, significantly reducing the load directly borne by the front screw 301 and the rear screw 302, avoiding excessive force on the front screw 301 and the rear screw 302 and bending them, thus ensuring the stability of the workpiece clamping and fixing and the milling quality.

[0063] Please see Figure 7 , Figure 9 and Figure 10The isolation mechanism 6 includes four positioning slots 601, which are divided into two groups of two. The two groups of positioning slots 601 are respectively opened on the bottom surface of the two support platforms 304. The two positioning slots 601 in the same group are symmetrical about the center face of the support platform 304. A piston plate 602 is slidably inserted into the positioning slot 601. Two fixed sliding holes 603 are symmetrically opened on the piston plate 602. An adapter slide rod 604 is slidably inserted into the fixed sliding hole 603. A fixed end cap 605 is fixedly connected to the top of the adapter slide rod 604. A force spring 606 is sleeved on the outside of the adapter slide rod 604. The top of the force spring 606 abuts against the bottom surface of the fixed end cap 605, and the bottom of the force spring 606 abuts against the top surface of the piston plate 602. Triangular plates 607 are fixedly installed on both the left and right sides of the piston plate 602. A roller 608 is movably installed between the two triangular plates 607. The roller 608 rolls on the bottom surface of the inner cavity of the adapter box 201.

[0064] When a workpiece is placed on the upper part of the support column 107, the force-applying spring 606 applies an upward lifting force to the support platform 304 through the fixed end cap 605 under the action of the elastic force, causing the support platform 304 to move upward and separate from the bottom surface of the inner cavity of the adapter box 201. The rolling friction of the roller 608 on the bottom surface of the inner cavity of the adapter box 201 replaces the sliding friction between the support platform 304 and the adapter box 201, avoiding wear and reducing adjustment resistance. When a workpiece is placed on the support column 107, the support platform 304 overcomes the elastic force of the force-applying spring 606 and directly abuts against the bottom surface of the inner cavity of the adapter box 201, so that the load borne by the support platform 304 is directly transferred to the adapter box 201, which plays a role in protecting the front screw 301 and the rear screw 302.

[0065] Please see Figure 7 , Figure 11 , Figure 12 and Figure 13The separation mechanism 7 includes four separation grooves 701, which are respectively formed on the bottom surface of four support columns 107. The cross-section of the separation grooves 701 is rectangular. Separation grooves 702 are formed on the front and rear surfaces of the inner cavity of the separation grooves 701. A separation column groove 703 is formed on the top surface of the inner cavity of the separation grooves 701, located in the middle. A separation slider 705 is slidably inserted into the separation grooves 701. A threaded hole 408 passes through the support column 107 and the separation slider 705. A buffer hole 704 is formed at the opening of the threaded hole 408 on the surface of the support column 107. The left screw 402 and the right screw 403 are inserted into the buffer holes 704 on the corresponding support columns 107. Separation guide rails 706 are fixedly connected to the front and rear surfaces of the separation slider 705. The separation guide rails 706 are slidably inserted into the separation grooves 702. A separation column 707 located in the middle is fixedly connected to the top surface of the separation slider 705. A separation spring 708 is sleeved on the outside of the separation column 707. The top end of the separation column 707 is inserted into the separation column groove 703. The bottom end of the separation spring 708 abuts against the top surface of the separation slider 705. The top end of the separation spring 708 abuts against the top surface of the inner cavity of the separation groove 701. A sealing cover 709 is threadedly fitted to the bottom end of the bearing column 107. A displacement insert plate 710 located in the middle is fixedly connected to the bottom surface of the sealing cover 709. Two displacement slots 711 are opened on the top surface of each bearing platform 304. The two displacement slots 711 are symmetrically distributed on both sides of the mounting groove 405. The bottom end of the displacement insert plate 710 is slidably inserted into the corresponding displacement slot 711. There is a distance between the bottom surface of the bearing column 107 and the top surface of the bearing platform 304.

[0066] The insertion between the displacement insert plate 710 and the displacement slot 711 restricts the rotation of the support column 107 and prevents it from tilting in the front-to-back direction. The insertion between the separation slider 705 and the separation groove 701, and the connection between the separation slider 705 and the left screw 402 and right screw 403 via the threaded hole 408, restrict the support column 107 in the left-to-right direction, ensuring it remains vertical. This increases the quality of workpiece clamping and fixation, thereby improving milling quality. The separation spring 708 applies an upward lifting force to the support column 107, ensuring that when there is no workpiece on the support column 107, the support column 107... 07. The sealing cover 709 moves the displacement plate 710 slightly upward, creating a distance between the sealing cover 709 and the top surface of the support platform 304, thus preventing wear on the sealing cover 709. When there is a workpiece on the support column 107, the workpiece exerts downward pressure on the support column 107, causing the support column 107 to move downward with the sealing cover 709 until the sealing cover 709 abuts against the top surface of the support platform 304. This ensures that the load borne by the support column 107 is transferred to the support platform 304 to the maximum extent, minimizing the load borne by the left screw 402 and right screw 403, protecting the left screw 402 and right screw 403, and preventing them from bending under stress.

[0067] Please see Figure 2 , Figure 3 , Figure 5 , Figure 13 and Figure 14 The slag discharge mechanism 8 includes downward-facing right-angle hooks 801 and elastic frames 802. There are eight downward-facing right-angle hooks 801, which are divided into four groups of two. The four groups of downward-facing right-angle hooks 801 are fixedly installed on the four sides of the adapter box 201. The elastic frame 802 is movably sleeved on the outside of the adapter box 201. Two lower insertion holes 803 are opened on each of the four sides of the elastic frame 802. The downward-facing right-angle hooks 801 are movably inserted into the lower insertion holes 803. An elastic pad 804 is fixedly connected to the top of the elastic frame 802. A central window 805 is provided in the middle of the top surface of the elastic pad 804. Four supporting columns 107 are inserted into the central window 805. An upper insertion hole 806 is opened on the elastic pad 804. An upward-facing right-angle hook 807 is fixedly connected to the surface of the supporting column 107 and is inserted into the upper insertion hole 806.

[0068] The elastic pad 804 receives the chips, preventing them from entering the adapter box 201 and hindering the operation of the front and rear adapter mechanism 3, left and right adapter mechanism 4, strain mechanism 5, isolation mechanism 6, and separation mechanism 7.

[0069] The elastic pad 804 is in a stretched state, with the center of the elastic pad 804 bulging upwards.

[0070] By setting the elastic pad 804 in a stretched state, the elastic pad 804 remains taut and will not sink downwards during the process of the bearing column 107 moving towards the edge of the adapter box 201 and towards the center of the adapter box 201. The upward bulge in the center of the elastic pad 804 allows the chips received by the elastic pad 804 to slide downwards and outwards, achieving the purpose of automatically discharging the chips and preventing the chips from accumulating on the top surface of the elastic pad 804 and affecting the milling operation.

[0071] Working principle

[0072] First, the workpiece information, including its length and width, is input into the control box. Then, the control box controls the adjustment motor 303 to run based on the workpiece length information. Next, the adjustment motor 303 rotates the front screw 301 and the rear screw 302. Then, the front screw 301 drives the support platform 304 on it to move backward, and the rear screw 302 drives the support platform 304 on it to move forward. The two support platforms 304 then approach each other. Next, the two support platforms 304, through the left and right adaptation mechanism 4, bring their support columns 107 closer together to adapt to the workpiece length. Afterward, the control box monitors the position of the support platforms 304 in real time through the distance measuring probe 308, until the distance between the support columns 107 on the two support platforms 304 in the front-to-back direction is measured. When the length matches the workpiece, the control box stops the adjustment motor 303, and then controls the adapter motor 406 to run. The adapter motor 406 then drives the left screw 402 and right screw 403 to rotate through the meshing of the driven bevel gear 407 and the driven bevel gear 404. The left screw 402 and right screw 403, through their threaded engagement with the threaded hole 408, move the two separating sliders 705 above the same support platform 304 towards each other in the left-right direction. Then, the separating sliders 705, through their insertion into the separating groove 701, move the two support columns 107 towards each other. The monitoring probe 409 then monitors the position of the support columns 107 in real time. When the two support columns 107 are in the left-right direction... When the distance matches the workpiece width, the control box controls the adapter motor 406 to shut off. Then, the workpiece is placed on the four support columns 107, which lift and fix the workpiece. Simultaneously, the workpiece exerts pressure on the support columns 107 under its own weight. The support columns 107 then move downwards, followed by the displacement plate 710 moving downwards via the sealing cover 709. The displacement plate 710 then moves further into the displacement slot 711. The support columns 107 then move downwards relative to the separating slider 705. Next, the top surface of the inner cavity of the separating groove 701 presses against the separating spring 708, causing the separating spring 708 to compress elastically, increasing its elastic potential energy. Finally, the bottom surface of the sealing cover 709 abuts against the top surface of the support platform 304 and applies pressure. Applying downward pressure, the support platform 304 moves downward relative to the piston plate 602. Then, the top surface of the positioning groove 601 applies downward pressure to the adapter slide rod 604 through the fixed end cap 605. The adapter slide rod 604 then moves downward within the fixed sliding hole 603. Simultaneously, the fixed end cap 605 compresses the force spring 606, causing the force spring 606 to elastically contract and increase its elastic potential energy. Next, the bottom surface of the support platform 304 abuts against the bottom surface of the adapter box 201. Then, the control box controls the extension of the intermediate pressure cylinder 105, which applies pressure from the top surface of the workpiece. The support column 107 cooperates with the pressure cylinder 105 to clamp and fix the workpiece. Finally, the control box controls the feed slide 102 and the milling assembly 109 to perform milling operations.The generated chips fall onto the surface of the elastic pad 804 and slide downwards and outwards, preventing chips from entering the adapter box 201 and causing wear on the front and rear adapter mechanisms 3 and the left and right adapter mechanisms 4, thus extending the service life.

[0073] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An adaptive double-head milling machine, comprising a milling machine device (1), characterized in that, The milling machine (1) is equipped with an adapter (2), and the adapter (2) is equipped with a front and rear fitting mechanism (3). The front and rear fitting mechanism (3) is adapted to the length of the workpiece. The top of the front and rear fitting mechanism (3) is equipped with a left and right fitting mechanism (4). The left and right fitting mechanism (4) is adapted to the width of the workpiece. The front and rear fitting mechanism (3) is equipped with a strain mechanism (5). The bottom of the front and rear fitting mechanism (3) is equipped with an isolation mechanism (6). The strain mechanism (5) and the isolation mechanism (6) work together to reduce the load on the front and rear fitting mechanism (3). The top of the left and right fitting mechanism (4) is equipped with a separation mechanism (7). The milling machine (1) and the separation mechanism (7) work together to reduce the load on the left and right fitting mechanism (4). The top of the adapter (2) is equipped with a slag discharge mechanism (8). The slag discharge mechanism (8) discharges the chips. The milling machine (1) includes a machine base (101), a feed slide (102) is mounted on the top surface of the machine base (101), a support vertical arm (103) is fixedly mounted on the rear end of the top surface of the feed slide (102), a support beam (104) is rotatably mounted on the top surface of the support vertical arm (103), and three pressure cylinders (105) are fixedly mounted at equal intervals on the top surface of the support beam (104). The bottom ends of the extension rods inside the three pressure cylinders (105) all penetrate downward through the support beam (104). The three pressure cylinders (105) are, from front to back, a front pressure cylinder (105), a middle pressure cylinder (105), and a rear pressure cylinder (105). The feed slide (102) is fixedly mounted on the top surface of the feed slide (102). The machine tool base (101) is equipped with an electric indexing plate (106), which is located directly below the intermediate pressure cylinder (105). Four bearing columns (107) are installed on the top of the electric indexing plate (106). The four bearing columns (107) and the intermediate pressure cylinder (105) work together to clamp and fix the workpiece. Two auxiliary worktables (108) are installed on the top surface of the feed slide (102). The two auxiliary worktables (108) are symmetrically distributed on the front and rear sides of the electric indexing plate (106). The two auxiliary worktables (108) are located directly below the front pressure cylinder (105) and the rear pressure cylinder (105) respectively. Milling assemblies (109) are symmetrically installed on the left and right sides of the machine tool base (101). The adapter (2) includes an adapter box (201); The front and rear adapter mechanism (3) includes a front screw (301) and a rear screw (302). The front end of the front screw (301) is movably inserted into the middle of the front side of the adapter box (201), and the rear end of the rear screw (302) is movably inserted into the middle of the rear side of the adapter box (201). The rear end of the front screw (301) and the front end of the rear screw (302) are coaxially and fixedly connected together. The threads on the front screw (301) and the rear screw (302) are in opposite directions. The distance from the connection point between the front screw (301) and the rear screw (302) to the rear side of the inner cavity of the adapter box (201) is equal to the distance from the connection point between the front screw (301) and the rear screw (302) to the front side of the inner cavity of the adapter box (201). The front end of the front screw (301) extends from the front side of the adapter box (201) and is fixedly connected to the adjustment motor (303). The adjustment motor (303) is connected to the front side of the adapter box (201). 1) Both the front screw (302) and the rear screw (302) are threaded together with a support platform (304). Both support platforms (304) are slidably inserted into the inside of the adapter box (201). The two support platforms (304) are symmetrical about the connection between the front screw (301) and the rear screw (302). Two T-slots (305) are symmetrically opened on the bottom surface of both support platforms (304) about the axis of the front screw (301). The T-slots (305) on the two support platforms (304) One-to-one correspondence, the two T-shaped grooves (305) aligned front and back on the two support platforms (304) have the same T-shaped track (306) slidingly inserted inside. The T-shaped track (306) is fixedly connected to the bottom surface of the inner cavity of the adapter box (201). A fixing hole (307) is opened on the front side of the adapter box (201). A ranging probe (308) is fixedly inserted inside the fixing hole (307). The rear end of the ranging probe (308) points to the front side of the support platform (304) outside the front screw (301). The left and right adapter mechanism (4) includes four vertical plates (401), which are fixedly connected to the four ends of the two support platforms (304). A left screw (402) located in the middle is movably inserted into the left vertical plate (401) of the support platform (304), and a right screw (403) located in the middle is movably inserted into the right vertical plate (401) of the support platform (304). A driven bevel gear (404) is fixedly connected coaxially between the right end of the left screw (402) and the left end of the right screw (403). A mounting groove (405) located in the middle is opened on the top surface of the support platform (304), and an adapter motor (406) is fixedly installed inside the mounting groove (405). A drive bevel gear (407) is fixedly connected to the top of the output shaft of 406. The drive bevel gear (407) meshes with the driven bevel gear (404). Threaded holes (408) are opened on the four bearing columns (107). The two left screws (402) and the two right screws (403) are respectively threaded into the threaded holes (408) on the four bearing columns (107). The two bearing columns (107) above the same bearing platform (304) are symmetrical about the center plane of the bearing platform (304). A monitoring probe (409) located below the right screw (403) is fixedly inserted into the vertical plate (401) at the right end of the bearing platform (304). The monitoring probe (409) corresponds to the bearing column (107). The separation mechanism (7) includes four separation grooves (701), which are respectively opened on the bottom surface of four supporting columns (107). The cross-section of the separation groove (701) is rectangular. Separation slide grooves (702) are opened on both the front and rear surfaces of the inner cavity of the separation groove (701). A separation column groove (703) located in the middle is opened on the top surface of the inner cavity of the separation groove (701). A separation slider (705) is slidably inserted into the separation groove (701). A threaded hole (408) passes through the support column (107) and the separating slider (705). A buffer hole (704) is provided at the opening of the threaded hole (408) on the surface of the support column (107). The left screw (402) and the right screw (403) are inserted into the buffer holes (704) on the corresponding support columns (107). Separating guide rails (706) are fixedly connected to both the front and rear surfaces of the separating slider (705). The separating guide rails (706) are slidably inserted into the separating groove (702). Inside, a separation column (707) located in the middle is fixedly connected to the top surface of the separation slider (705). A separation spring (708) is sleeved on the outside of the separation column (707). The top end of the separation column (707) is inserted into the separation column groove (703). The bottom end of the separation spring (708) abuts against the top surface of the separation slider (705). The top end of the separation spring (708) abuts against the top surface of the inner cavity of the separation groove (701). The bottom end of the bearing column (107) is threadedly fitted with a sleeve. The sealing cover (709) has a displacement insert plate (710) fixedly connected to its bottom surface. Each support platform (304) has two displacement slots (711) on its top surface. The two displacement slots (711) are symmetrically distributed on both sides of the mounting groove (405). The bottom end of the displacement insert plate (710) is slidably inserted into the corresponding displacement slot (711). There is a distance between the bottom surface of the support column (107) and the top surface of the support platform (304).

2. The self-adapting double-end milling machine according to claim 1, wherein, The rotating shaft at the top of the electric indexing plate (106) is fixedly connected to the middle position of the bottom surface of the adapter box (201). The bottom surface of the adapter box (201) is square, and the top of the adapter box (201) is open. A first rounded chamfer (202) is provided at the corner between two adjacent sides of the adapter box (201), and a second rounded chamfer (203) is provided at the corner between the side and top surfaces of the adapter box (201). The front and rear adapter mechanism (3), the left and right adapter mechanism (4), the strain mechanism (5), the isolation mechanism (6), and the separation mechanism (7) are all located inside the adapter box (201), and the slag discharge mechanism (8) is located at the top of the adapter box (201).

3. The self-adapting double-end milling machine according to claim 2, wherein, The T-shaped track (306) can move up and down inside the T-shaped groove (305), and there is a distance between the bottom surface of the support platform (304) and the bottom surface of the inner cavity of the adapter box (201).

4. The self-adapting double-end milling machine according to claim 3, wherein, The strain mechanism (5) includes a front strain hole (501), a guide angle steel (502), and a rear strain hole (503). The front strain hole (501) is located on the front side of the adapter box (201) and in the middle position. The rear strain hole (503) is located on the rear side of the adapter box (201) and aligned with the front strain hole (501). Both the front strain hole (501) and the rear strain hole (503) are elongated holes with arc-shaped upper and lower ends. There are two guide angle steels (502), which are symmetrically fixed to the front side of the adapter box (201) about the front strain hole (501). The front screw (301) is movably inserted into the front strain hole (501), and the rear screw (302) is movably inserted into the rear strain hole (503). 03) Inside, both the strain front hole (501) and the strain rear hole (503) are slidably inserted with limit blocks (504). The two limit blocks (504) are rotatably sleeved on the front end of the front screw (301) and the rear end of the rear screw (302). The rear side of the limit block (504) at the rear end of the rear screw (302) is fixedly connected with a limit back plate (505). The limit back plate (505) is slidably connected to the rear side of the adapter box (201). The front side of the limit block (504) at the front end of the front screw (301) is fixedly connected with a limit front plate (506). The limit front plate (506) is slidably inserted between the two guide angle steels (502). The adjustment motor (303) is bolted on the front side of the limit front plate (506).

5. An adaptive double-end-milling machine according to claim 4, wherein, The isolation mechanism (6) includes four positioning slots (601). The four positioning slots (601) are divided into two groups of two. The two groups of positioning slots (601) are respectively opened on the bottom surface of two support platforms (304). The two positioning slots (601) in the same group are symmetrical about the center face of the support platform (304). A piston plate (602) is slidably inserted inside the positioning slot (601). Two fixed sliding holes (603) are symmetrically opened on the piston plate (602). A matching sliding rod (604) is slidably inserted inside the fixed sliding hole (603). A fixed end cap (605) is fixedly connected to the top of the adapter slide rod (604). A force spring (606) is sleeved on the outside of the adapter slide rod (604). The top of the force spring (606) abuts against the bottom surface of the fixed end cap (605), and the bottom of the force spring (606) abuts against the top surface of the piston plate (602). Triangular plates (607) are fixedly installed on both the left and right sides of the piston plate (602). A roller (608) is movably installed between the two triangular plates (607). The roller (608) rolls on the bottom surface of the inner cavity of the adapter box (201).

6. An adaptive double-end-milling machine according to claim 5, wherein, The slag discharge mechanism (8) includes downward-facing right-angle hooks (801) and elastic frames (802). There are eight downward-facing right-angle hooks (801), which are divided into four groups of two. The four groups of downward-facing right-angle hooks (801) are fixedly installed on the four sides of the adapter box (201). The elastic frame (802) is movably fitted onto the outside of the adapter box (201). Each of the four sides of the elastic frame (802) has two downward insertion holes (803). (801) The elastic frame (802) is fixedly connected to the top of the lower insertion hole (803) and the elastic pad (804) is fixedly connected to the top of the elastic frame (802). The center window (805) is provided in the middle of the top surface of the elastic pad (804). The four supporting columns (107) are all inserted into the center window (805). The upper insertion hole (806) is provided on the elastic pad (804). The surface of the supporting column (107) is fixedly connected to the upward right-angle hook (807). The upward right-angle hook (807) is inserted into the upper insertion hole (806). The elastic pad (804) is in a stretched state, with the center of the elastic pad (804) bulging upward.

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