A five-axis, five-linkage CNC milling machine

Abstract

This invention discloses a five-axis, five-linkage CNC milling machine, including a machine body. Mounting seats are fixedly connected to the left and right sides of the top of the machine body. A worktable is disposed above the mounting seats, and a support seat is fixedly installed on the rear top of the machine body. Through the coordinated use of a first fixing mechanism, a tool storage mechanism, and a disassembly mechanism, and under the action of the output ends of a second stepper motor and a servo motor, the milling cutter to be replaced is positioned inside an empty placement slot on the storage disk. Then, a magnet abuts against a third sliding seat made of plastic, causing the milling cutter to fall into the placement slot. Similarly, the first fixing mechanism automatically installs the new milling cutter, which is convenient and quick. In addition, this invention also includes a tilting mechanism to facilitate cleaning of the T-slot on the top of the worktable by the operator, and a second fixing mechanism to select a suitable fixture for installation according to the product to be milled, meeting the needs of the operator.

Description

Technical Field

[0001] This invention relates to the field of CNC machining technology, specifically to a five-axis, five-linkage CNC milling machine. Background Technology

[0002] Milling machines are widely used metal cutting machine tools, mainly used for machining workpieces. Milling machines can process various planar parts, such as flat plates and worktables, and remove protruding parts from the surface of blanks by milling. Secondly, they can easily replace the spindle box of machining centers, expanding their vertical machining capabilities and significantly increasing their range.

[0003] Among the currently published technical documents, Chinese Patent Publication No. CN117399689A discloses a multi-station CNC gantry milling machine for machining. This milling machine technology features a motor fixedly mounted on an electric slide, a cutting head fixedly connected to the motor output shaft, drainage holes at the four corners of the base frame, and several grooves in the electric bed. The control panel is electrically connected to the electric slide rails, electric slide, and electric bed. A cleaning mechanism effectively removes metal debris from the surface of the electric bed, reducing operator workload and improving milling efficiency. However, this milling machine has the following drawbacks.

[0004] During milling, different spindle cutters are changed according to milling needs. The cutters need to be placed in a designated position during the connection process, and then a locking force is applied using bolts or other methods. However, during the spindle cutter change process, it is difficult to accurately connect the spindle cutter to the designated position, and it is also difficult to achieve two-stage synchronous and precise locking at the designated position with the specified locking force. As a result, the cutters on the spindle are prone to loosening during use, leading to a decrease in the milling accuracy of the milling machine and making it difficult to meet the needs of the operator. Summary of the Invention

[0005] To solve the above-mentioned technical problems, a five-axis, five-linkage CNC milling machine is provided. This technical solution solves the problems mentioned in the background technology.

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

[0007] A five-axis, five-linkage CNC milling machine includes a machine body. Mounting seats are fixedly connected to the left and right sides of the top of the machine body. A worktable is provided above the mounting seats. A support seat is fixedly installed on the rear side of the top of the machine body. A third sliding seat is provided on the front side of the support seat. A drive motor is installed inside the third sliding seat. A base cylinder is fixedly connected to the output end of the drive motor. A first fixing mechanism is installed inside the base cylinder. The first fixing mechanism is used to fix the milling cutter. A tool storage mechanism and a disassembly mechanism are provided on the inner side of one set of mounting seats. The first fixing mechanism, the tool storage mechanism, and the disassembly mechanism cooperate to automatically change the milling cutter.

[0008] Preferably, a longitudinal slide rail is fixedly installed on the top of each of the two sets of mounting bases. A first sliding seat is slidably connected to the outer wall of the longitudinal slide rail. A transverse slide rail is fixedly connected to the front and rear sides of the top of the first sliding seat. A second sliding seat is slidably connected to the top of the transverse slide rail. The worktable is rotatably connected to the top of the second sliding seat. An tilting mechanism is provided between the worktable and the second sliding seat. Several sets of T-slots are opened on the top of the worktable. A second fixing mechanism is provided on the left and right sides of the worktable. The third sliding seat is slidably connected to the two sets of vertical slide rails. Both sets of vertical slide rails are fixedly installed on the front side of the support base.

[0009] Preferably, the first fixing mechanism includes an iron cylinder and a first spring. A limiting groove is formed on the inner wall of the base cylinder, and a limiting slider is slidably connected in the limiting groove. The limiting slider is fixedly installed on the iron cylinder. Through grooves are uniformly formed on the outer wall of the iron cylinder, and a movable block is slidably installed inside the iron cylinder.

[0010] Preferably, the inner wall of the iron cylinder is fixedly connected to the movable block by a first spring. The iron cylinder is also provided with three sets of ball bearings. A first through hole is opened through the middle position of the outer end of the iron cylinder, a second through hole is opened through the center position of the movable block, and a slot is opened at the top of the milling cutter. The three sets of ball bearings are used to lock the slot.

[0011] Preferably, the tilting mechanism includes a first lead screw and a first guide rod. The top of the second sliding seat is provided with two sets of first mounting slots. The first lead screw is rotatably connected in one set of first mounting slots, and the first guide rod is fixedly connected in the other set of first mounting slots. A first stepper motor is provided on the outer side of the second sliding seat. The output end of the first stepper motor extends into the interior of the first mounting slot and is fixedly connected to the outer end of the first lead screw.

[0012] Preferably, the outer surface of the first lead screw is threaded with a moving block, the outer surface of the first guide rod is slidably connected with a guide block, and the moving block and the guide block are rotatably connected with connecting rods. Furthermore, the bottom sides of the worktable are provided with second mounting slots, and the interiors of the two sets of second mounting slots are slidably connected with sliding blocks. The other end of the connecting rod is rotatably connected to the interior of the sliding block.

[0013] Preferably, the second fixing mechanism includes a first rotating plate and a second rotating plate, which are rotatably connected to the front and rear ends of the worktable, respectively. The interior of the first rotating plate is fixedly connected to a sliding member via a telescopic rod. A locking block is fixedly installed on the side of the sliding member away from the telescopic rod. A locking groove is provided at the outer end of the second rotating plate, which is adapted to the locking block. A second spring is sleeved on the outside of the telescopic rod. One end of the second spring is fixedly connected to the inner wall of the first rotating plate, and the other end of the second spring is fixedly connected to the outer wall of the sliding member.

[0014] Preferably, the tool storage mechanism includes a first fixed frame fixedly connected to the inner side of one of the mounting seats, a second lead screw rotatably connected inside the first fixed frame, a first movable plate threadedly connected to the outer wall of the second lead screw, the first movable plate slidably mounted on the outer wall of the second guide rod, the second guide rod being welded inside the first fixed frame, and the outer end of the second lead screw being fixedly connected to the output end of the second stepper motor, the second stepper motor being disposed outside the first fixed frame.

[0015] Preferably, a servo motor is fixedly installed at the bottom of the first movable plate. The output end of the servo motor passes through the bottom side wall of the first movable plate and is fixedly connected to the storage disk. Several sets of placement slots are evenly opened on the top of the storage disk, and the placement slots are used to place milling cutters.

[0016] Preferably, the disassembly mechanism includes a third lead screw, a third guide rod, and a second movable plate. A second fixed frame is also fixedly installed on the inner side of one set of mounting bases. The third lead screw is rotatably connected to the inside of the second fixed frame, and the third guide rod is fixedly connected to the inside of the second fixed frame. The second movable plate is slidably connected to the outer wall of the third guide rod and threadedly connected to the outer wall of the third lead screw. A third stepper motor is provided on the outer side of the second fixed frame. The outer end of the third lead screw is fixedly installed on the output end of the third stepper motor. An electric push rod is provided on the outer side of the second movable plate, and the output end of the electric push rod is fixedly connected to a magnet.

[0017] Compared with the prior art, the present invention provides a five-axis, five-linkage CNC milling machine, which has the following beneficial effects:

[0018] This invention utilizes a combination of a first fixing mechanism, a tool storage mechanism, and a disassembly mechanism. Under the influence of the outputs of a second stepper motor and a servo motor, the milling cutter to be replaced is positioned inside an empty slot on the storage tray. Then, a magnet engages with a third sliding seat made of plastic, causing the milling cutter to fall into the slot. Similarly, the first fixing mechanism automatically installs the new milling cutter, making the process convenient and quick. Furthermore, this invention includes a tilting mechanism to facilitate cleaning of the T-slot on the top of the worktable, and a second fixing mechanism to select and install a suitable fixture based on the product to be milled, thus meeting the needs of the workers. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the third sliding seat in this invention;

[0021] Figure 3 This is a schematic diagram of the internal structure of the base tube in this invention;

[0022] Figure 4 This is a schematic diagram of the structure of the first fixing mechanism in this invention;

[0023] Figure 5 This is a schematic diagram of the structure of the milling cutter in this invention;

[0024] Figure 6 This is a schematic diagram of the workbench structure in this invention;

[0025] Figure 7 In this invention Figure 6 A schematic diagram of the enlarged structure at point A;

[0026] Figure 8 This is a schematic diagram of the tilting mechanism in this invention;

[0027] Figure 9 This is a schematic diagram of the tilting mechanism in this invention from another perspective;

[0028] Figure 10 This is a schematic diagram of the inner structure of the mounting base in this invention;

[0029] Figure 11 This is a schematic diagram of the blade storage mechanism and the disassembly mechanism in this invention;

[0030] Figure 12 This is a schematic diagram of the structure of the first movable plate in this invention.

[0031] The numbers on the map are:

[0032] 1. Machine body; 101. Mounting base; 102. Longitudinal slide rail; 103. First sliding seat; 104. Transverse slide rail; 105. Second sliding seat; 106. Worktable; 107. Support base; 108. Vertical slide rail; 109. Third sliding seat; 110. Drive motor; 111. Base cylinder; 112. Milling cutter; 113. T-slot; 114. Groove opening;

[0033] 2. First fixing mechanism; 201. Iron cylinder; 202. Ball bearing; 203. Through groove; 204. First through hole; 205. First spring; 206. Movable block; 207. Second through hole;

[0034] 3. Tilting mechanism; 301. First mounting slot; 302. First lead screw; 303. First stepper motor; 304. Moving block; 305. First guide rod; 306. Guide block; 307. Connecting rod; 308. Second mounting slot; 309. Sliding block;

[0035] 4. Second fixing mechanism; 401. First rotating plate; 402. Telescopic rod; 403. Sliding component; 404. Locking block; 405. Second spring; 406. Second rotating plate; 407. Locking groove;

[0036] 5. Tool storage mechanism; 501. First fixed frame; 502. Second lead screw; 503. Second guide rod; 504. Second stepper motor; 505. First moving plate; 506. Servo motor; 507. Storage disk; 508. Placement slot;

[0037] 6. Disassembly mechanism; 601. Second fixed frame; 602. Third lead screw; 603. Third guide rod; 604. Third stepper motor; 605. Second moving plate; 606. Electric push rod; 607. Magnet. Detailed Implementation

[0038] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0039] Example 1

[0040] Please refer to Figures 1-12As shown, a five-axis, five-linkage CNC milling machine includes a machine body 1. Mounting seats 101 are fixedly connected to the left and right sides of the top of the machine body 1. A worktable 106 is provided above the mounting seats 101. A support seat 107 is fixedly installed on the rear side of the top of the machine body 1. A third sliding seat 109 is provided on the front side of the support seat 107. A drive motor 110 is installed inside the third sliding seat 109. A base cylinder 111 is fixedly connected to the output end of the drive motor 110. A first fixing mechanism 2 is installed inside the base cylinder 111. The first fixing mechanism 2 is used to fix the milling cutter 112. A tool storage mechanism 5 and a disassembly mechanism 6 are provided on the inner side of one set of mounting seats 101. The first fixing mechanism 2, the tool storage mechanism 5 and the disassembly mechanism 6 cooperate to automatically change the milling cutter 112.

[0041] Please refer to Figure 1 , Figure 2 and Figure 6 As shown, a longitudinal slide rail 102 is fixedly installed on the top of each of the two sets of mounting bases 101. A first sliding seat 103 is slidably connected to the outer wall of the longitudinal slide rail 102. A transverse slide rail 104 is fixedly connected to the front and rear sides of the top of the first sliding seat 103. A second sliding seat 105 is slidably connected to the top of the transverse slide rail 104. A worktable 106 is rotatably connected to the top of the second sliding seat 105. An inclined mechanism 3 is provided between the worktable 106 and the second sliding seat 105. Several sets of T-slots 113 are opened on the top of the worktable 106. A second fixing mechanism 4 is provided on the left and right sides of the worktable 106. A third sliding seat 109 is slidably connected to two sets of vertical slide rails 108. Both sets of vertical slide rails 108 are fixedly installed on the front side of the support base 107.

[0042] Example 2

[0043] Please refer to Figure 2 , Figure 3 and Figure 4 As shown, the first fixing mechanism 2 includes an iron cylinder 201 and a first spring 205. A limiting groove is provided on the inner wall of the base cylinder 111. A limiting slider is slidably connected in the limiting groove. The limiting slider is fixedly installed on the iron cylinder 201. Through grooves 203 are evenly provided on the outer wall of the iron cylinder 201. A movable block 206 is slidably installed inside the iron cylinder 201.

[0044] Please refer to Figure 3 and Figure 4 As shown, the inner wall of the iron cylinder 201 is fixedly connected to the movable block 206 by the first spring 205. The iron cylinder 201 is also provided with three sets of ball bearings 202. A first through hole 204 is opened through the middle position of the outer end of the iron cylinder 201. A second through hole 207 is opened through the center position of the movable block 206. A slot 114 is opened on the top of the milling cutter 112. The three sets of ball bearings 202 are used to lock the slot 114.

[0045] Those skilled in the art will understand that when installing the milling cutter 112, by inserting the top of the milling cutter 112 into the interior of the first through hole 204, the three sets of ball bearings 202 are pushed outward, and the iron cylinder 201 also moves downward. Meanwhile, the first spring 205 presses the movable block 206 upward, causing the ball bearings 202 to be pressed upward. The ball bearings 202 are also squeezed by the inner wall of the base cylinder 111 and stuck in the slot 114 on the milling cutter 112, thereby locking the milling cutter 112 in place and achieving a fixed installation of the milling cutter 112, which is convenient and quick.

[0046] Example 3

[0047] Please refer to Figure 6 , Figure 8 and Figure 9 As shown, the tilting mechanism 3 includes a first lead screw 302 and a first guide rod 305. The top of the second sliding seat 105 is provided with two sets of first mounting slots 301. The first lead screw 302 is rotatably connected in one set of first mounting slots 301, and the first guide rod 305 is fixedly connected in the other set of first mounting slots 301. A first stepper motor 303 is provided on the outer side of the second sliding seat 105. The output end of the first stepper motor 303 extends into the interior of the first mounting slot 301 and is fixedly connected to the outer end of the first lead screw 302.

[0048] Please refer to Figure 8 and Figure 9 As shown, a moving block 304 is threadedly connected to the outer surface of the first lead screw 302, and a guide block 306 is slidably connected to the outer surface of the first guide rod 305. A connecting rod 307 is rotatably connected inside both the moving block 304 and the guide block 306. A second mounting groove 308 is also provided on both sides of the bottom of the worktable 106. A sliding block 309 is slidably connected inside both sets of second mounting grooves 308. The other end of the connecting rod 307 is rotatably connected inside the sliding block 309.

[0049] Those skilled in the art will understand that the first lead screw 302 is rotated by the output end of the first stepper motor 303, causing the moving block 304 to reciprocate horizontally in the horizontal direction. At the same time, the guide block 306 also reciprocates horizontally in the same direction, causing the two sets of connecting rods 307 to rotate synchronously. Simultaneously, the two sets of sliding blocks 309 also reciprocate horizontally inside the second mounting groove 308, thereby causing the worktable 106 to rotate on top of the second sliding seat 105. This allows the worktable 106 to remain tilted. Since the worktable 106 is provided with a T-slot 113, during milling, the generated debris will splash into the T-slot 113. In addition, in real life, coolant is used during milling to improve the service life of the milling cutter 112, and the coolant will also flow into the T-slot 113, making it inconvenient for workers to clean. Therefore, this tilting mechanism 3 is provided to tilt the worktable 106, making it easier for workers to clean and meeting their needs.

[0050] Example 4

[0051] Please refer to Figure 6 and Figure 7 As shown, the second fixing mechanism 4 includes a first rotating plate 401 and a second rotating plate 406. The first rotating plate 401 and the second rotating plate 406 are rotatably connected to the front and rear ends of the workbench 106, respectively. The interior of the first rotating plate 401 is fixedly connected to the sliding member 403 through a telescopic rod 402. A locking block 404 is fixedly installed on the side of the sliding member 403 away from the telescopic rod 402. A locking groove 407 is opened at the outer end of the second rotating plate 406. The locking groove 407 is adapted to the locking block 404. A second spring 405 is sleeved on the outside of the telescopic rod 402. One end of the second spring 405 is fixedly connected to the inner wall of the first rotating plate 401, and the other end of the second spring 405 is fixedly connected to the outer wall of the sliding member 403.

[0052] Those skilled in the art will understand that, since the worktable 106 is provided with a T-slot 113, during processing, different fixtures are selected for adaptation and installation according to the size and shape of the workpiece to be milled. The bottom of the fixture mounting plate is provided with a T-block. The T-block is inserted into the T-slot 113 and then locked using the second fixing mechanism 4, which facilitates the installation of the fixture, as detailed below:

[0053] Initially, both the first rotating plate 401 and the second rotating plate 406 are in a vertical position when rotated to the unfolded state. The T-shaped block at the bottom of the fixture is inserted into the T-slot 113. First, the first rotating plate 401 is rotated to a horizontal position. Then, the sliding member 403 is pulled, causing the telescopic rod 402 and the second spring 405 to be in a retracted state. Then, the second rotating plate 406 is rotated in the same way, so that the second rotating plate 406 is also in a horizontal position. The locking block 404 fixed on the outside of the sliding member 403 is directly opposite the slot 407 opened at the outer end of the second rotating plate 406. Then, by releasing the sliding member 403, under the action of the second spring 405 restoring its deformation, the sliding member 403 quickly resets, causing the locking block 404 to be locked inside the slot 407. This connects the first rotating plate 401 and the second rotating plate 406 together and blocks the openings on the left and right sides of the T-slot 113, completing the installation of the fixture in a convenient and quick manner.

[0054] Example 5

[0055] Please refer to Figure 10 , Figure 11 and Figure 12 As shown, the tool storage mechanism 5 includes a first fixed frame 501 fixedly connected to the inner side of one of the mounting bases 101. A second lead screw 502 is rotatably connected inside the first fixed frame 501. A first moving plate 505 is threadedly connected to the outer wall of the second lead screw 502. The first moving plate 505 is slidably mounted on the outer wall of the second guide rod 503. The second guide rod 503 is welded inside the first fixed frame 501. The outer end of the second lead screw 502 is fixedly connected to the output end of the second stepper motor 504. The second stepper motor 504 is located outside the first fixed frame 501.

[0056] Please refer to Figure 11 and Figure 12 As shown, a servo motor 506 is fixedly installed at the bottom of the first moving plate 505. The output end of the servo motor 506 passes through the bottom side wall of the first moving plate 505 and is fixedly connected to the storage disk 507. Several sets of placement slots 508 are evenly opened on the top of the storage disk 507. The placement slots 508 are used to place the milling cutter 112.

[0057] Those skilled in the art will understand that the output of the second stepper motor 504 drives the second lead screw 502 to rotate, causing the first moving plate 505 to reciprocate along the outer wall of the second guide rod 503, which in turn drives the storage disk 507 to reciprocate. Furthermore, the output of the servo motor 506 is rotated, causing the storage disk 507 to rotate, thereby causing the milling cutter 112 stored on the storage disk 507 to rotate synchronously.

[0058] Example 6

[0059] Please refer to Figure 11 and Figure 12 As shown, the disassembly mechanism 6 includes a third lead screw 602, a third guide rod 603, and a second movable plate 605. A second fixed frame 601 is also fixedly installed on the inner side of a set of mounting bases 101. The third lead screw 602 is rotatably connected to the inside of the second fixed frame 601, and the third guide rod 603 is fixedly connected to the inside of the second fixed frame 601. The second movable plate 605 is slidably connected to the outer wall of the third guide rod 603 and threadedly connected to the outer wall of the third lead screw 602. A third stepper motor 604 is provided on the outer side of the second fixed frame 601. The outer end of the third lead screw 602 is fixedly installed on the output end of the third stepper motor 604. An electric push rod 606 is provided on the outer side of the second movable plate 605. The output end of the electric push rod 606 is fixedly connected to a magnet 607.

[0060] Those skilled in the art will understand that the output end of the third stepper motor 604 drives the third lead screw 602 to rotate, causing the second moving plate 605 to reciprocate along the outer wall of the third guide rod 603, which in turn drives the magnet 607 to reciprocate. Furthermore, by extending or retracting the output end of the drive electric push rod 606, the magnet 607 can be moved to the right or to the left.

[0061] The working principle of this device is as follows:

[0062] S1. The CNC milling machine of the present invention is provided with a longitudinal slide rail 102. The outer wall of the longitudinal slide rail 102 is slidably connected to a first sliding seat 103, causing the worktable 106 to reciprocate back and forth. A transverse slide rail 104 is provided on the first sliding seat 103. A second sliding seat 105 is slidably connected to the top of the transverse slide rail 104, causing the worktable 106 to reciprocate horizontally. A vertical slide rail 108 is also installed on the front side of the support seat 107, causing the third sliding seat 109 to reciprocate vertically. This enables the milling cutter 112 to reciprocate vertically. In summary, a fixture is installed on the worktable 106. The workpiece to be milled is installed on the fixture, and any surface of the workpiece can be milled, which improves the practicality of milling processing.

[0063] S2. When replacing the milling cutter 112, the longitudinal slide rail 102 drives the first sliding seat 103 to move to the top front of the machine body 1. Under the action of the output end of the second stepper motor 504, the storage disk 507 reciprocates, causing the storage disk 507 to be positioned below the milling cutter 112 to be replaced. Then, in conjunction with the output end of the servo motor 506, the storage disk 507 rotates, causing the empty placement slot 508 of the storage disk 507 to be positioned directly below the milling cutter 112 to be replaced. At this time, the center of the milling cutter 112 to be replaced and the center of the placement slot 508 are on the same vertical line. Then, by driving the vertical slide rail 108, the third sliding seat 109 moves downward, causing the milling cutter 112 to be replaced to be positioned below the machine body 1. The milling cutter 112 moves downward and enters the empty placement slot 508. Then, under the action of the output end of the third stepper motor 604, the magnet 607 is positioned on the left side of the third sliding seat 109. The output end of the drive electric push rod 606 is extended, which moves the magnet 607 closer to the third sliding seat 109. The mounting base 111 of the third sliding seat 109 is made of plastic. At this time, the iron cylinder 201 moves downward under the magnetic force of the magnet 607. The three sets of balls 202 will have enough space to move outward and unlock the slot 114. The vertical slide rail 108 is driven to quickly move the third sliding seat 109 upward, and the milling cutter 112 falls into the placement slot 508.

[0064] Next, with the combined action of the output of the second stepper motor 504 and the output of the servo motor 506, the new milling cutter 112 on the storage disk 507 is positioned directly below the base cylinder 111. This drives the vertical slide rail 108 to quickly move the third sliding seat 109 downward, causing the top of the milling cutter 112 to insert into the interior of the first through hole 204. The three sets of ball bearings 202 are pushed outward, and the iron cylinder 201 also moves downward. Meanwhile, the first spring 205 presses the movable block 206 upward, causing the ball bearings 202 to press upward. The ball bearings 202 are also squeezed by the inner wall of the base cylinder 111 and stuck in the slot 114 on the milling cutter 112, thus locking the milling cutter 112 in place. This achieves the fixed installation of the milling cutter 112, which is convenient and quick. This enables the automated installation and disassembly of the milling cutter 112, which is convenient and quick.

[0065] S3. The top of the body 1 in this invention is provided with an inclined surface, and the bottom of the inner end of the first sliding seat 103 is also inclined. The purpose of this is to facilitate the flow of coolant and its collection. During milling, the generated debris will splash into the T-slot 113. In real life, coolant is used during milling to improve the service life of the milling cutter 112, and the coolant will also flow into the T-slot 113, which is inconvenient for the staff to clean. Therefore, the output end of the first stepper motor 303 drives the first lead screw 302 to rotate, so that the moving block 304 performs horizontal reciprocating motion in the horizontal direction. At the same time, the guide block 306 also performs horizontal reciprocating motion in the horizontal direction, driving the two sets of connecting rods 307 to rotate synchronously. At the same time, the two sets of sliding blocks 309 also slide horizontally in the second mounting groove 308 synchronously, so that the worktable 106 rotates on the top of the second sliding seat 105, so that the worktable 106 can be kept in an inclined state, which makes it easier for the staff to clean.

[0066] S4. The present invention can also select different fixtures for installation according to the size and shape of the workpiece to be milled. The bottom of the mounting plate of the fixture is provided with a T-block. The T-block is inserted into the T-slot 113 and then locked by the second fixing mechanism 4, which facilitates the installation of the fixture, as follows:

[0067] Initially, both the first rotating plate 401 and the second rotating plate 406 are in a vertical position when rotated to the unfolded state. The T-shaped block at the bottom of the fixture is inserted into the T-slot 113. First, the first rotating plate 401 is rotated to a horizontal position. Then, the sliding member 403 is pulled, causing the telescopic rod 402 and the second spring 405 to be in a retracted state. Then, the second rotating plate 406 is rotated in the same way, so that the second rotating plate 406 is also in a horizontal position. The locking block 404 fixed on the outside of the sliding member 403 is directly opposite the slot 407 opened at the outer end of the second rotating plate 406. Then, by releasing the sliding member 403, under the action of the second spring 405 restoring its deformation, the sliding member 403 quickly resets, causing the locking block 404 to be locked inside the slot 407. This connects the first rotating plate 401 and the second rotating plate 406 together and blocks the openings on the left and right sides of the T-slot 113, completing the installation of the fixture in a convenient and quick manner.

[0068] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A five-axis, five-linkage CNC milling machine, comprising a machine body (1), characterized in that, Mounting bases (101) are fixedly connected to the top left and right sides of the machine body (1). A worktable (106) is provided above the mounting bases (101). A support base (107) is fixedly installed on the top rear side of the machine body (1). A third sliding base (109) is provided on the front side of the support base (107). A drive motor (110) is installed inside the third sliding base (109). A base cylinder (111) is fixedly connected to the output end of the drive motor (110). A first fixing mechanism (2) is installed inside the base cylinder (111). The first fixing mechanism (2) is used to fix the milling cutter (112). A tool storage mechanism (5) and a disassembly mechanism (6) are provided on the inner side of one set of mounting bases (101). The first fixing mechanism (2), the tool storage mechanism (5) and the disassembly mechanism (6) are used together to automatically replace the milling cutter (112). The first fixing mechanism (2) includes an iron cylinder (201) and a first spring (205). A limiting groove is provided on the inner wall of the base cylinder (111). A limiting slider is slidably connected in the limiting groove. The limiting slider is fixedly installed on the iron cylinder (201). Through grooves (203) are evenly provided on the outer wall of the iron cylinder (201). A movable block (206) is slidably installed in the iron cylinder (201). The inner wall of the iron cylinder (201) is fixedly connected to the movable block (206) by a first spring (205). The iron cylinder (201) is also provided with three sets of ball bearings (202). A first through hole (204) is opened through the middle position of the outer end of the iron cylinder (201). A second through hole (207) is opened through the center position of the movable block (206). A slot (114) is opened on the top of the milling cutter (112). The three sets of ball bearings (202) are used to lock the slot (114). The disassembly mechanism (6) includes a third lead screw (602), a third guide rod (603), and a second moving plate (605). A second fixed frame (601) is also fixedly installed on the inner side of a set of mounting bases (101). The third lead screw (602) is rotatably connected to the inside of the second fixed frame (601). The third guide rod (603) is fixedly connected to the inside of the second fixed frame (601). The second moving plate (605) is slidably connected to the outer wall of the third guide rod (603). The second moving plate (605) is threadedly connected to the outer wall of the third lead screw (602). A third stepper motor (604) is provided on the outer side of the second fixed frame (601). The outer end of the third lead screw (602) is fixedly installed on the output end of the third stepper motor (604). An electric push rod (606) is provided on the outer side of the second moving plate (605). The output end of the electric push rod (606) is fixedly connected to a magnet (607).

2. A five-axis, five-linkage CNC milling machine according to claim 1, characterized in that, Both sets of mounting bases (101) are fixedly mounted with longitudinal slide rails (102) on their tops. The outer wall of the longitudinal slide rails (102) is slidably connected to a first sliding seat (103). The front and rear sides of the top of the first sliding seat (103) are fixedly connected to transverse slide rails (104). The top of the transverse slide rails (104) is slidably connected to a second sliding seat (105). The worktable (106) is rotatably connected to the top of the second sliding seat (105). An inclined mechanism (3) is provided between the worktable (106) and the second sliding seat (105). Several sets of T-slots (113) are opened on the top of the worktable (106). A second fixing mechanism (4) is provided on the left and right sides of the worktable (106). The third sliding seat (109) is slidably connected to two sets of vertical slide rails (108). Both sets of vertical slide rails (108) are fixedly mounted on the front side of the support base (107).

3. A five-axis, five-linkage CNC milling machine according to claim 2, characterized in that, The tilting mechanism (3) includes a first lead screw (302) and a first guide rod (305). The top of the second sliding seat (105) is provided with two sets of first mounting slots (301). The first lead screw (302) is rotatably connected in one set of first mounting slots (301), and the first guide rod (305) is fixedly connected in the other set of first mounting slots (301). A first stepper motor (303) is provided on the outside of the second sliding seat (105). The output end of the first stepper motor (303) extends into the interior of the first mounting slot (301) and is fixedly connected to the outer end of the first lead screw (302).

4. A five-axis, five-linkage CNC milling machine according to claim 3, characterized in that, The outer surface of the first lead screw (302) is threaded with a moving block (304), and the outer surface of the first guide rod (305) is slidably connected with a guide block (306). The moving block (304) and the guide block (306) are both rotatably connected with a connecting rod (307). The bottom sides of the worktable (106) are also provided with second mounting slots (308). The two sets of second mounting slots (308) are slidably connected with sliding blocks (309). The other end of the connecting rod (307) is rotatably connected to the inside of the sliding block (309).

5. A five-axis, five-linkage CNC milling machine according to claim 2, characterized in that, The second fixing mechanism (4) includes a first rotating plate (401) and a second rotating plate (406). The first rotating plate (401) and the second rotating plate (406) are rotatably connected to the front and rear ends of the workbench (106). The interior of the first rotating plate (401) is fixedly connected to the sliding member (403) through a telescopic rod (402). A locking block (404) is fixedly installed on the side of the sliding member (403) away from the telescopic rod (402). A locking groove (407) is opened at the outer end of the second rotating plate (406). The locking groove (407) is adapted to the locking block (404). A second spring (405) is sleeved on the outside of the telescopic rod (402). One end of the second spring (405) is fixedly connected to the inner wall of the first rotating plate (401), and the other end of the second spring (405) is fixedly connected to the outer wall of the sliding member (403).

6. A five-axis, five-linkage CNC milling machine according to claim 1, characterized in that, The blade storage mechanism (5) includes a first fixed frame (501) fixedly connected to the inner side of one of the mounting bases (101). A second lead screw (502) is rotatably connected inside the first fixed frame (501). A first moving plate (505) is threadedly connected to the outer wall of the second lead screw (502). The first moving plate (505) is slidably mounted on the outer wall of the second guide rod (503). The second guide rod (503) is welded inside the first fixed frame (501). The outer end of the second lead screw (502) is fixedly connected to the output end of the second stepper motor (504). The second stepper motor (504) is located outside the first fixed frame (501).

7. A five-axis, five-linkage CNC milling machine according to claim 6, characterized in that, A servo motor (506) is fixedly installed at the bottom of the first moving plate (505). The output end of the servo motor (506) passes through the bottom side wall of the first moving plate (505) and is fixedly connected to the storage disk (507). Several sets of placement slots (508) are evenly opened on the top of the storage disk (507). The placement slots (508) are used to place milling cutters (112).

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