Multi-station horizontal numerical control milling machine

Abstract

The invention discloses a multi-station horizontal numerical control milling machine in the technical field of numerical control milling machines. The multi-station horizontal numerical control milling machine comprises a base, and a supporting block is fixedly connected to the surface of the base; in the process of machining the cylindrical workpiece through the multi-station horizontal numerical control milling machine, the cylindrical workpiece is clamped and fixed through the protruding blocks, the limiting holes and the fastening plates, so that the cylindrical workpiece can be kept in a butt joint state with the mounting column in the process of rotating the cylindrical workpiece with the follow-up mounting column when the cylindrical workpiece is machined; the problems that when the cylindrical workpiece is machined, the cylindrical workpiece moves in the follow-up mounting column rotating process, so that the protruding blocks move out of the limiting holes, the cylindrical workpiece cannot move by the same angle along with the mounting column, the angle between the machining holes in the surface of the cylindrical workpiece is affected, and the product percent of pass is reduced are solved. And a mounting column, a rotating rod and a butt joint wheel are utilized, so that the multiple cylindrical workpieces can rotate by an angle in the process that the drill bit moves downwards, the cylindrical workpieces do not need to be manually disassembled and adjusted one by one, and the workload of workers is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of numerically controlled milling machines, in particular to a multi-station horizontal numerically controlled milling machine. Background Art

[0002] According to the layout of the spindle, CNC milling machines can be divided into vertical CNC milling machines and horizontal CNC milling machines; vertical CNC milling machines are the most numerous type of CNC milling machines, and their spindle axis is perpendicular to the horizontal plane; small CNC milling machines generally adopt a worktable lifting method; medium-sized CNC milling machines generally adopt a spindle lifting method; gantry milling machines adopt a gantry movement method, that is, the spindle can move on the horizontal and vertical guide rails of the gantry; the spindle axis of the horizontal CNC milling machine is parallel to the horizontal plane. In order to expand the processing range and expand the function, horizontal CNC milling machines usually realize four-axis or five-axis processing by adding a CNC rotary table. Horizontal CNC milling machines are suitable for rough and fine boring, milling and other processes of large and medium-sized parts and box-shaped parts. Horizontal CNC milling machines are suitable for box-shaped parts with more processes. Hole and plane processing, turning of outer cylindrical surfaces, cutting of annular grooves in holes, and tapping of metric and imperial threads with taps, etc.

[0003] In the prior art, when using a horizontal CNC milling machine to perform milling processing on a cylindrical workpiece, it is usually necessary to clamp the workpiece and then perform the milling processing. The workpiece needs to be frequently disassembled and replaced, which is cumbersome and time-consuming. In addition, only one workpiece can be processed at a time, and the work efficiency is low. Moreover, when it is necessary to mill holes at multiple positions on the circumferential surface of the workpiece, the workpiece needs to be rotated a certain angle after one milling process and then processed again. It is difficult to accurately rotate the workpiece to the required angle when manually rotating the workpiece, which affects the position accuracy of the milling hole and reduces the qualified rate of the product. Summary of the invention

[0004] The object of the present invention is to provide a multi-station horizontal CNC milling machine to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A multi-station horizontal CNC milling machine comprises a base, a support block is fixedly connected to the surface of the base, a driving block is slidably mounted on the surface of the support block, a mounting seat is fixedly mounted on the surface of the driving block, a plurality of drill bits arranged equidistantly are mounted on the surface of the mounting seat, a workbench is fixedly mounted on the surface of the base, a plurality of cylindrical workpieces are arranged on the surface of the workbench, a mounting mechanism is provided on the surface of the workbench, the mounting mechanism is used to mount the cylindrical workpiece, a limiting mechanism is provided on the surface of the mounting mechanism, the limiting mechanism is used to limit the cylindrical workpiece, a fastening mechanism is provided on the surface of the mounting mechanism, the fastening mechanism is used to keep the cylindrical workpiece fixed during processing, a rotating mechanism is provided in the mounting mechanism, the rotating mechanism is used to rotate the cylindrical workpiece when multiple milling holes need to be performed on the surface of the cylindrical workpiece, an adjusting mechanism is provided on the surface of the mounting mechanism, the adjusting mechanism is used to adjust the rotation angle of the rotating mechanism when the cylindrical workpiece is rotated, and a limiting mechanism is provided on the surface of the rotating mechanism, the limiting mechanism is used to limit the rotating mechanism when the cylindrical workpiece is processed.

[0006] As a further solution of the present invention, the mounting mechanism includes a mounting box, which is fixedly mounted on the surface of the workbench, and a plurality of equidistantly arranged mounting columns are arranged inside the mounting box, and the mounting columns pass through the mounting box near one end of the drill bit, and a plurality of the cylindrical workpieces are sleeved on the surface of the mounting columns.

[0007] As a further solution of the present invention, the limiting mechanism includes multiple fixing rings, which are respectively fixedly connected to the surfaces of the multiple mounting columns, and limiting holes are opened on the surfaces of the fixing rings. A protruding block is provided at the end of the cylindrical workpiece, and the protruding block is located in the limiting hole.

[0008] As a further solution of the present invention, the fastening mechanism includes two sliding plates, and the two sliding plates elastically slide on the left and right sides of the installation box. The ends of the two sliding plates are slidably connected with a fastening plate together. The fastening plate is rotatably connected with a plurality of pushing columns on the surface of one side close to the cylindrical workpiece, and the end of the pushing column is conical, and the ends of the plurality of pushing columns are in contact with the ends of the plurality of cylindrical workpieces.

[0009] As a further solution of the present invention, the rotating mechanism includes a synchronous belt, which is driven and connected to the surfaces of the plurality of mounting columns. A rotating rod is rotatably connected inside the mounting box, and the rotating rod is used to cause the mounting column to rotate. A retractable stabilizing block is fixedly connected inside the mounting box, and the end of the stabilizing block is in contact with the surface of the rotating rod. A driving gear is fixedly connected to the surface of the rotating rod, and the driving gear is a unidirectional rotating gear. A driving rack is elastically and slidably connected inside the mounting box, and the upper end of the driving rack passes through the mounting box, and the driving rack is meshed with the driving gear. An L-shaped pressure plate is elastically and slidably connected to the surface of the mounting seat, and the pressure plate is located above the driving rack, and the elastic force applied to the pressure plate is relatively large.

[0010] As a further solution of the present invention, the adjustment mechanism includes a plurality of U-shaped sliding rods, and the plurality of sliding rods are all arranged in the installation box. The sliding rods penetrate the installation box and are elastically slidably connected to the installation box. The inner sides of the plurality of sliding rods are rotatably connected to docking wheels. The plurality of docking wheels have different sizes. The docking wheels are located between the installation column and the rotating rod, and the docking wheels are in contact with the installation column and the rotating rod. The plurality of different docking wheels are used to cause the installation column to rotate to different angles when the rotating rod rotates by the same angle.

[0011] As a further solution of the present invention, the limiting mechanism includes a slide groove, which is opened on the surface of the installation box, and the slide groove passes through the installation box. An L-shaped limiting rod is elastically slidably connected in the slide groove, and the upper end of the limiting rod extends to the outside of the installation box. The upper end of the limiting rod is an inclined surface, and the bottom of the limiting rod is in contact with the surface of the driving rack. The upper part of the driving rack has no teeth, and the limiting rod is located below the pressure plate. A limiting opening is opened on the surface of the driving rack, and a first through hole is opened on the surface of the pressure plate, and one side of the first through hole is an inclined surface, and the first through hole is located above the limiting rod.

[0012] As a further solution of the present invention, a second through hole is provided on the surface of the pressure plate, and the second through hole is located above the driving rack. A blocking plate is elastically and slidably connected to the surface of the pressure plate, and the blocking plate is located above the first through hole and the second through hole. The end of the blocking plate close to the first through hole is an inclined surface, and a third through hole is provided on the surface of the blocking plate. A pushing rod is fixedly connected to the surface of the blocking plate, and the surface of the mounting seat is elastically and slidably connected to a limiting plate, which is located above the pressure plate to limit the pressure plate, and the end of the limiting plate is an inclined surface, and the pushing rod extends to the position of the limiting plate.

[0013] As a further solution of the present invention, a fixed block is fixedly connected to the inner side of the sliding rod, and a certain distance is left between the fixed block and the inner upper end of the sliding rod. A blocking block is elastically slidably connected to the surface of the installation box, and the blocking block is located on one side of the sliding rod.

[0014] As a further solution of the present invention, a retractable extrusion block is fixedly connected to the position of the fixed block inside the installation box, and the two sides of the retractable end of the extrusion block are inclined surfaces. The retractable end of the extrusion block is fixedly connected to the fixed block. A plurality of blocking rods are elastically and slidably connected to the inner wall surface of the installation box. The plurality of blocking rods are located between the plurality of extrusion blocks, and both ends of the blocking rods are inclined surfaces. The end of the blocking rod extends to the bottom of the extrusion block.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the process of machining a cylindrical workpiece by a multi-station horizontal CNC milling machine, the present invention uses a protruding block, a limiting hole and a fastening plate to clamp and fix the cylindrical workpiece, so that the cylindrical workpiece can maintain a docking state with the mounting column during the machining and subsequent rotation of the mounting column, thereby preventing the cylindrical workpiece from moving during the machining and subsequent rotation of the mounting column, thereby causing the protruding block to move out of the limiting hole, resulting in the cylindrical workpiece being unable to move at the same angle as the mounting column, affecting the angle between the machined holes on the surface of the cylindrical workpiece and reducing the product qualification rate; and using the mounting column, the rotating rod and the docking wheel, multiple cylindrical workpieces can rotate at an angle during the downward movement of the drill bit, without the need to manually disassemble and adjust the cylindrical workpieces one by one, thereby reducing the workload of workers and improving machining efficiency.

[0017] 2. In the process of processing the cylindrical workpiece of the present invention, the pressure plate will be limited by the limit plate, and the pressure plate can move downward stably. The upper end of the driving rack will first move into the second through hole, and the second through hole will be blocked by the blocking plate. The blocking plate will drive the driving rack to move downward under the action of the pressure plate. Subsequently, when the limit rod moves to the position of the first through hole, the bottom of the limit rod will move to the position of the limit opening. Subsequently, when the limit rod passes through the first through hole, the bottom of the limit rod will move into the limit opening to limit the driving rack. The upper end of the limit rod will act on the side inclined surface of the blocking plate to move the blocking plate to one side. The blocking plate will drive the push rod to move together, and the third through hole will move to the position of the driving rack. The driving rack can The limit rod can pass through the third through hole, and the second through hole and the third through hole can make the limit rod be in the limit mouth, and the limit rod can stably limit the driving rack. The movement of the push rod will push the limit plate to one side so that the limit plate can release the limit on the pressure plate, so that the pressure plate can move upward after the limit rod limits the driving rack, and will not affect the movement of the mounting seat and the drill bit. Then the mounting seat and the drill bit continue to move downward to process the cylindrical workpiece, and the pressure plate can move upward along the mounting seat, which is beneficial for the pressure plate to remain fixed in the process of acting on the driving rack, and then the limit can be released after the driving rack is limited, and will not affect the movement of the mounting seat, thereby ensuring that the drill bit can process the cylindrical workpiece.

[0018] 3. In the process of processing the cylindrical workpiece of the present invention, after selecting the corresponding docking wheel according to the processing needs, the corresponding sliding rod is used to push the docking wheel downward, and then after the docking wheel is in contact with the surface of the mounting column and the rotating rod, the blocking block will move to the top of the fixed block on the inner side of the sliding rod to limit the sliding rod, ensuring that the docking wheel can be tightly fitted with the mounting column and the rotating rod in the subsequent processing process, thereby ensuring that the cylindrical workpiece can be rotated at an accurate angle, thereby improving the processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 It is a structural schematic diagram of the mounting seat and the pressing plate in the present invention;

[0021] Figure 3 for Figure 2 Schematic diagram of the structure at A in the middle;

[0022] Figure 4 It is a structural schematic diagram of the connection relationship between the installation box and the fastening mechanism in the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the installation box after being cut open in the present invention;

[0024] Figure 6 for Figure 5 Schematic diagram of the structure at B in the middle;

[0025] Figure 7 It is a structural schematic diagram of the connection relationship between the sliding plate, the fastening plate and the jacking column in the present invention;

[0026] Figure 8 It is a schematic diagram of the explosion structure of the mounting column and the cylindrical workpiece in the present invention;

[0027] Fig. 9 It is a structural schematic diagram of the connection relationship between the installation box, the installation column, the rotating rod and the driving rack in the present invention (the installation box is cut open);

[0028] Fig.10 for Fig. 9 Schematic diagram of the structure at C in the middle;

[0029] Fig.11 It is a structural schematic diagram of the adjustment mechanism in the present invention (the installation box is cut open);

[0030] Fig.12 It is a schematic diagram of the structure inside the installation box of the present invention (the installation box is cut open);

[0031] Fig.13 for Fig.12 Schematic diagram of the structure at point D in the middle.

[0032] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0033] 1-base, 2-support block, 3-drive block, 4-mounting seat, 5-drill bit, 6-workbench, 7-cylindrical workpiece, 8-mounting box, 9-mounting column, 10-fixing ring, 11-limiting hole, 12-protruding block, 13-sliding plate, 14-fastening plate, 15-pushing column, 16-synchronous belt, 17-rotating rod, 18-stabilizing block, 19-driving gear, 20-driving rack, 21-pressing plate, 22-sliding rod, 23-docking wheel, 24-slide groove, 25-limiting rod, 26-limiting mouth, 27-first through hole, 28-second through hole, 29-blocking plate, 30-third through hole, 31-pushing rod, 32-limiting plate, 33-fixed block, 34-blocking block, 35-extrusion block, 36-blocking rod. DETAILED DESCRIPTION

[0034] See also Figure 1-Figure 13 The present invention provides a technical solution: a multi-station horizontal CNC milling machine, comprising a base 1, a support block 2 is fixedly connected to the surface of the base 1, a driving block 3 is slidably installed on the surface of the support block 2, a mounting seat 4 is fixedly installed on the surface of the driving block 3, a plurality of drill bits 5 arranged equidistantly are installed on the surface of the mounting seat 4, a workbench 6 is fixedly installed on the surface of the base 1, a plurality of cylindrical workpieces 7 are arranged on the surface of the workbench 6, a mounting mechanism is arranged on the surface of the workbench 6, the mounting mechanism is used to mount the cylindrical workpiece 7, a limiting mechanism is arranged on the surface of the mounting mechanism, the limiting mechanism is used to limit the cylindrical workpiece 7, a fastening mechanism is arranged on the surface of the mounting mechanism, the fastening mechanism is used to keep the cylindrical workpiece 7 fixed during processing, a rotating mechanism is arranged inside the mounting mechanism, the rotating mechanism is used to rotate the cylindrical workpiece 7 when multiple milling holes need to be performed on the surface of the cylindrical workpiece 7, an adjusting mechanism is arranged on the surface of the mounting mechanism, the adjusting mechanism is used to adjust the rotation angle of the rotating mechanism when the cylindrical workpiece 7 is rotated, a limiting mechanism is arranged on the surface of the rotating mechanism, the limiting mechanism is used to limit the rotating mechanism when the cylindrical workpiece 7 is processed;

[0035] The mounting mechanism includes a mounting box 8, which is fixedly mounted on the surface of the workbench 6. A plurality of mounting columns 9 are arranged equidistantly inside the mounting box 8. One end of the mounting column 9 near the drill bit 5 penetrates the mounting box 8, and a plurality of cylindrical workpieces 7 are sleeved on the surface of the mounting column 9.

[0036] The limiting mechanism includes a plurality of fixing rings 10, which are respectively fixedly connected to the surfaces of the plurality of mounting columns 9, and a limiting hole 11 is provided on the surface of the fixing ring 10, and a protruding block 12 is provided at the end of the cylindrical workpiece 7, and the protruding block 12 is located in the limiting hole 11;

[0037] The fastening mechanism includes two sliding plates 13, which elastically slide on the left and right sides of the installation box 8, and the ends of the two sliding plates 13 are slidably connected with a fastening plate 14, and the fastening plate 14 is rotatably connected with a plurality of push columns 15 on the surface of one side of the cylindrical workpiece 7, and the ends of the push columns 15 are conical, and the ends of the plurality of push columns 15 are in contact with the ends of the plurality of cylindrical workpieces 7;

[0038] The rotating mechanism includes a synchronous belt 16, which is transmission-connected to the surfaces of multiple mounting columns 9. A rotating rod 17 is rotationally connected inside the mounting box 8. The rotating rod 17 is used to rotate the mounting column 9. A retractable stabilizing block 18 is fixedly connected inside the mounting box 8. The end of the stabilizing block 18 is in contact with the surface of the rotating rod 17. A driving gear 19 is fixedly connected to the surface of the rotating rod 17. The driving gear 19 is a unidirectional rotating gear. A driving rack 20 is elastically slidably connected inside the mounting box 8. The upper end of the driving rack 20 passes through the mounting box 8. The driving rack 20 is meshed with the driving gear 19. An L-shaped pressing plate 21 is elastically slidably connected to the surface of the mounting seat 4. The pressing plate 21 is located above the driving rack 20, and the elastic force on the pressing plate 21 is relatively large.

[0039] The adjustment mechanism includes a plurality of U-shaped sliding rods 22, which are all arranged in the installation box 8, and the sliding rods 22 penetrate the installation box 8 and are elastically slidably connected to the installation box 8. The inner sides of the plurality of sliding rods 22 are all rotatably connected with docking wheels 23, and the plurality of docking wheels 23 have different sizes. The docking wheels 23 are located between the installation column 9 and the rotating rod 17, and the docking wheels 23 are in contact with the installation column 9 and the rotating rod 17. The plurality of different docking wheels 23 are used to cause the installation column 9 to rotate to different angles when the rotating rod 17 rotates to the same angle.

[0040] The limiting mechanism includes a slide groove 24, which is provided on the surface of the installation box 8 and penetrates the installation box 8. An L-shaped limiting rod 25 is elastically slidably connected in the slide groove 24. The upper end of the limiting rod 25 extends to the outside of the installation box 8. The upper end of the limiting rod 25 is an inclined surface. The bottom of the limiting rod 25 is in contact with the surface of the driving rack 20. The upper part of the driving rack 20 has no teeth. The limiting rod 25 is located below the pressure plate 21. A limiting opening 26 is provided on the surface of the driving rack 20. A first through hole 27 is provided on the surface of the pressure plate 21. One side of the first through hole 27 is an inclined surface. The first through hole 27 is located above the limiting rod 25.

[0041] In the process of machining the cylindrical workpiece 7 using a multi-station horizontal CNC milling machine, it is necessary to first install the mounting box 8 on the surface of the workbench 6 and calibrate the position of the mounting box 8. Then, after the calibration and installation of the mounting box 8 is completed, the cylindrical workpiece 7 is sleeved on the surface of the mounting column 9 and the protruding block 12 is moved into the limiting hole 11. The cylindrical workpiece 7 can remain stable between the mounting column 9 under the action of the protruding block 12 and the limiting hole 11. Then, the fastening plate 14 is moved to make the end of the push column 15 move to the end of the cylindrical workpiece 7. The push column 15 will clamp and fix the cylindrical workpiece 7 under the action of the fastening plate 14 and the sliding plate 13, so that the cylindrical workpiece 7 can remain docked with the mounting column 9 during processing and the subsequent rotation of the mounting column 9, avoiding When the workpiece 7 is being processed and the subsequent mounting column 9 is rotating, the cylindrical workpiece 7 will move, so that the protruding block 12 will move out of the limiting hole 11, resulting in the cylindrical workpiece 7 not being able to move at the same angle as the mounting column 9, affecting the angle between the holes processed on the surface of the cylindrical workpiece 7, and reducing the product qualification rate. Subsequently, after the cylindrical workpiece 7 is installed, it is necessary to select the docking wheel 23 according to the number of holes that need to be processed in a single cylindrical workpiece 7, and then press the selected docking wheel 23 downward through the sliding rod 22 so that the docking wheel 23 fits tightly with the mounting column 9 and the rotating rod 17. Subsequently, the driving block 3 will drive the mounting seat 4 and the drill bit 5 to move downward together. The movement of the mounting seat 4 will drive the pressure plate 21 to move together. The pressure plate 21 will first move to the position of the driving rack 20, and then the pressure plate 21 will The driving rack 20 is pushed downward under the action of elastic force. The driving rack 20 moves downward to drive the driving gear 19 to rotate together with the rotating rod 17. The rotating rod 17 will drive the docking wheel 23 to rotate together with the mounting column 9. The stabilizing block 18 can slow down the rotation speed of the rotating rod 17 to ensure that the cylindrical workpiece 7 can rotate stably. Moving different docking wheels 23 to dock the rotating rod 17 with the mounting column 9 can cause the mounting column 9 to rotate different angles when the rotating rod 17 rotates the same angle, which is conducive to the processing switching angle of multiple cylindrical workpieces 7. There is no need to manually disassemble and adjust the cylindrical workpieces 7 one by one, which reduces the workload of workers and improves processing efficiency. Multiple mounting columns 9 will rotate a certain angle at the same time under the action of the synchronous belt 16. The limit rod The end of 25 will slide on the surface of the side of the driving rack 20 away from the teeth, and then when the limiting rod 25 moves to the position of the limiting opening 26, the upper end of the limiting rod 25 will move to the position of the first through hole 27, and the inclined surface on one side of the first through hole 27 will act on the limiting rod 25 to move into the limiting opening 26, and the limiting rod 25 will limit the driving rack 20 through the limiting opening 26, and the upper end of the limiting rod 25 will move into the first through hole 27 and be limited by the first through hole 27, so as to keep the limiting of the driving rack 20, which is conducive to automatically limiting the driving rack 20 after the cylindrical workpiece 7 is rotated by a certain angle, so that the cylindrical workpiece 7 can be kept fixed after the rotation, so as to avoid the cylindrical workpiece 7 being unable to be fixed after the rotation, and the cylindrical workpiece 7 will rotate when the drill bit 5 processes the cylindrical workpiece 7 subsequently.Thereby affecting the processing effect of the cylindrical workpiece 7, when the mounting seat 4 continues to move downward, the pressure plate 21 will slide along the surface of the mounting seat 4, the drill bit 5 will move to the position of the cylindrical workpiece 7 and process the cylindrical workpiece 7, and then after the processing of the cylindrical workpiece 7 is completed, the driving block 3 drives the mounting seat 4 and the drill bit 5 to move upward, and the limit rod 25 will move out of the first through hole 27, and then the limit rod 25 will move out of the limit opening 26 under the action of the spring elastic force to release the limit on the driving rack 20, and the driving rack 20 will move upward under the action of the spring, and the driving gear 19 will rotate in the opposite direction without driving the rotating rod 17 to rotate, and the stabilizing block 18 can keep the rotating rod 17 stable and will not rotate in the opposite direction with the driving gear 19, and then when the cylindrical workpiece 7 is processed again, the cylindrical workpiece 7 will automatically rotate to the same angle again, so as to facilitate equal-angle processing of the surface of the cylindrical workpiece 7.

[0042] When the cylindrical workpiece 7 is processed, the pressing plate 21 moves downward to drive the rack. In the process, the pressing plate 21 may move upward under the action of the driving rack 20, resulting in a different distance of movement of the driving rack 20 each time. As a further solution of the present invention, a second through hole 28 is provided on the surface of the pressing plate 21, and the second through hole 28 is located above the driving rack 20. A blocking plate 29 is elastically and slidably connected to the surface of the pressing plate 21. The blocking plate 29 is located above the first through hole 27 and the second through hole 28. The end of the blocking plate 29 close to the first through hole 27 is an inclined surface. A third through hole 30 is provided on the surface of the blocking plate 29. A pushing rod 31 is fixedly connected to the surface of the blocking plate 29. The surface of the mounting seat 4 is elastically and slidably connected to a limiting plate 32. The limiting plate 32 is located above the pressing plate 21 to limit the pressing plate 21. The end of the limiting plate 32 is an inclined surface, and the pushing rod 31 extends to the position of the limiting plate 32.

[0043] During the processing of the cylindrical workpiece 7, the pressing plate 21 will be limited by the limiting plate 32, and the pressing plate 21 can move downward stably. The upper end of the driving rack 20 will first move into the second through hole 28, and the second through hole 28 will be blocked by the blocking plate 29. The blocking plate 29 will drive the driving rack 20 to move downward under the action of the pressing plate 21. Then, when the limiting rod 25 moves to the position of the first through hole 27, the bottom of the limiting rod 25 will move to the position of the limiting opening 26. Then, when the limiting rod 25 passes through the first through hole 27, the bottom of the limiting rod 25 will move downward. The limiting rod 25 moves to the limiting opening 26 to limit the driving rack 20. The upper end of the limiting rod 25 acts on the side slope of the blocking plate 29 to move the blocking plate 29 to one side. The blocking plate 29 drives the pushing rod 31 to move together. The third through hole 30 moves to the position of the driving rack 20. The driving rack 20 can pass through the third through hole 30. The second through hole 28 and the third through hole 30 can make the limiting rod 25 in the limiting opening 26. The limiting rod 25 can stably limit the driving rack 20. The movement of the pushing rod 31 will push the limiting plate 32 to move to one side. The limiting plate 32 releases the limit on the pressing plate 21, so that the pressing plate 21 can move upward after the limiting rod 25 limits the driving rack 20, without affecting the movement of the mounting seat 4 and the drill bit 5. Then the mounting seat 4 and the drill bit 5 continue to move downward to process the cylindrical workpiece 7. The pressing plate 21 can move upward along the mounting seat 4, which is conducive to keeping the pressing plate 21 fixed in the process of acting on the driving rack 20. Then, after the driving rack 20 is limited, the limit can be released, which will not affect the movement of the mounting seat 4, ensuring that the drill bit 5 can process the cylindrical workpiece 7. The workpiece 7 is processed, and then after the processing is completed, the mounting seat 4 moves upward, and the pressure plate 21 will gradually move downward along the mounting seat 4 under the action of the spring force, and then when the bottom of the pressure plate 21 moves to above the driving rack 20 and the limiting rod 25, the limiting rod 25 will move out of the limiting mouth 26 under the action of the spring to release the limit on the driving rack 20, and the driving rack 20 will move upward to return to its original position, and then when the upper end of the pressure plate 21 moves to the position of the limiting plate 32, the limiting plate 32 will move back to the surface of the pressure plate 21 to limit the pressure plate 21.

[0044] During the processing of the cylindrical workpiece 7, after the sliding rod 22 and the docking wheel 23 are moved downward, the docking wheel 23 cannot maintain a close fit with the mounting column 9 and the rotating rod 17. As a further solution of the present invention, a fixing block 33 is fixedly connected to the inner side of the sliding rod 22, and a certain distance is left between the fixing block 33 and the inner upper end of the sliding rod 22. A blocking block 34 is elastically slidably connected to the surface of the mounting box 8, and the blocking block 34 is located on one side of the sliding rod 22.

[0045] During the processing of the cylindrical workpiece 7, after selecting the corresponding docking wheel 23 according to the processing needs, the corresponding sliding rod 22 is used to push the docking wheel 23 downward, and then after the docking wheel 23 is in contact with the surface of the mounting column 9 and the rotating rod 17, the blocking block 34 will move to the top of the fixed block 33 on the inner side of the sliding rod 22 to limit the sliding rod 22, ensuring that the docking wheel 23 can be tightly fitted with the mounting column 9 and the rotating rod 17 during subsequent processing, thereby ensuring that the cylindrical workpiece 7 can be rotated at an accurate angle, thereby improving the processing accuracy.

[0046] During the processing of the cylindrical workpiece 7, after the sliding rod 22 is used to make the docking wheel 23 fit with the mounting column 9 and the rotating rod 17, the other sliding rods 22 and the docking wheels 23 are easy to move or affect the normal transmission of the mounting column 9 and the rotating rod 17 due to misoperation. As a further solution of the present invention, a retractable extrusion block 35 is fixedly connected to the position corresponding to the fixed block 33 inside the installation box 8, and both sides of the telescopic end of the extrusion block 35 are inclined surfaces, and the telescopic end of the extrusion block 35 is fixedly connected to the fixed block 33. A plurality of blocking rods 36 are elastically slidably connected to the inner wall surface of the installation box 8, and the plurality of blocking rods 36 are located between the plurality of extrusion blocks 35. Both ends of the blocking rod 36 are inclined surfaces, and the end of the blocking rod 36 extends to the bottom of the extrusion block 35.

[0047] During the processing of the cylindrical workpiece 7, the selected sliding rod 22 is pushed downward, and the sliding rod 22 will drive the fixed block 33 and the telescopic end of the extrusion block 35 to move downward together. The extrusion block 35 will act on the blocking rod 36 to move away from the extrusion block 35, and the blocking rod 36 will move to the bottom of the adjacent fixed block 33. The blocking rod 36 will block the other fixed blocks 33, so that the remaining docking wheels 23 can be blocked and restricted during the processing, avoiding that during the processing of the cylindrical workpiece 7, the remaining docking wheels 23 will move between the mounting column 9 and the rotating rod 17, affecting the normal transmission work of the docking wheels 23.

Claims

1. A multi-station horizontal CNC milling machine, comprising a base (1), a support block (2) fixedly connected to the surface of the base (1), a driving block (3) slidably mounted on the surface of the support block (2), and a mounting seat (4) fixedly mounted on the surface of the driving block (3), characterized in that: A plurality of drill bits (5) arranged at equal intervals are mounted on the surface of the mounting seat (4); a workbench (6) is fixedly mounted on the surface of the base (1); a plurality of cylindrical workpieces (7) are arranged on the surface of the workbench (6); a mounting mechanism is arranged on the surface of the workbench (6); the mounting mechanism is used to mount the cylindrical workpiece (7); a limiting mechanism is arranged on the surface of the mounting mechanism; the limiting mechanism is used to limit the position of the cylindrical workpiece (7); a fastening mechanism is arranged on the surface of the mounting mechanism; the fastening mechanism is used to keep the cylindrical workpiece (7) fixed during processing; a rotating mechanism is arranged inside the mounting mechanism; the rotating mechanism is used to rotate the cylindrical workpiece (7) when multiple milling operations are required on the surface of the cylindrical workpiece (7); an adjusting mechanism is arranged on the surface of the mounting mechanism; the adjusting mechanism is used to adjust the rotation angle of the rotating mechanism when the cylindrical workpiece (7) is rotated; a limiting mechanism is arranged on the surface of the rotating mechanism; the limiting mechanism is used to limit the rotating mechanism when the cylindrical workpiece (7) is processed.

2. A multi-station horizontal CNC milling machine according to claim 1, characterized in that: The mounting mechanism comprises a mounting box (8), the mounting box (8) being fixedly mounted on the surface of the workbench (6), a plurality of mounting columns (9) being arranged at equal distances inside the mounting box (8), the mounting columns (9) passing through the mounting box (8) at one end close to the drill bit (5), and the plurality of cylindrical workpieces (7) being sleeved on the surface of the mounting columns (9).

3. A multi-station horizontal CNC milling machine according to claim 2, characterized in that: The limiting mechanism comprises a plurality of fixing rings (10), the plurality of fixing rings (10) being fixedly connected to the surfaces of the plurality of mounting columns (9) respectively, a limiting hole (11) being provided on the surface of the fixing ring (10), a protruding block (12) being provided at the end of the cylindrical workpiece (7), and the protruding block (12) being located in the limiting hole (11).

4. The multi-station horizontal CNC milling machine according to claim 2, characterized in that: The fastening mechanism comprises two sliding plates (13), the two sliding plates (13) elastically slide on the left and right sides of the installation box (8), the ends of the two sliding plates (13) are slidably connected with a fastening plate (14), and the surface of the fastening plate (14) close to the cylindrical workpiece (7) is rotatably connected with a plurality of push columns (15), the ends of the push columns (15) are conical, and the ends of the plurality of push columns (15) are in contact with the ends of the plurality of cylindrical workpieces (7).

5. The multi-station horizontal CNC milling machine according to claim 2, characterized in that: The rotating mechanism comprises a synchronous belt (16), wherein the synchronous belt (16) is transmission-connected to the surfaces of the plurality of mounting posts (9); a rotating rod (17) is rotationally connected inside the mounting box (8); the rotating rod (17) is used to cause the mounting post (9) to rotate; a retractable stabilizing block (18) is fixedly connected inside the mounting box (8); an end of the stabilizing block (18) is in contact with the surface of the rotating rod (17); a driving gear (19) is fixedly connected to the surface of the rotating rod (17); the driving gear (19) is a unidirectionally rotating gear; a driving rack (20) is elastically slidably connected inside the mounting box (8); an upper end of the driving rack (20) passes through the mounting box (8); the driving rack (20) is meshed with the driving gear (19); an L-shaped pressing plate (21) is elastically slidably connected to the surface of the mounting seat (4); the pressing plate (21) is located above the driving rack (20); and the elastic force exerted on the pressing plate (21) is relatively large.

6. The multi-station horizontal CNC milling machine according to claim 5, characterized in that: The adjustment mechanism comprises a plurality of U-shaped sliding rods (22), the plurality of sliding rods (22) are all arranged in the installation box (8), the sliding rods (22) penetrate the installation box (8) and are elastically slidably connected to the installation box (8), the inner sides of the plurality of sliding rods (22) are rotatably connected with docking wheels (23), the plurality of docking wheels (23) are of different sizes, the docking wheels (23) are located between the installation column (9) and the rotating rod (17), and the docking wheels (23) are in contact with the installation column (9) and the rotating rod (17), and the plurality of different docking wheels (23) are used to cause the installation column (9) to rotate at different angles when the rotating rod (17) rotates at the same angle.

7. The multi-station horizontal CNC milling machine according to claim 5, characterized in that: The limiting mechanism comprises a slide groove (24), wherein the slide groove (24) is provided on the surface of the installation box (8), the slide groove (24) penetrates the installation box (8), an L-shaped limiting rod (25) is elastically slidably connected in the slide groove (24), the upper end of the limiting rod (25) extends to the outside of the installation box (8), the upper end of the limiting rod (25) is an inclined surface, the bottom of the limiting rod (25) is in contact with the surface of the driving rack (20), the upper part of the driving rack (20) has no teeth, the limiting rod (25) is located below the pressure plate (21), the surface of the driving rack (20) is provided with a limiting opening (26), the surface of the pressure plate (21) is provided with a first through hole (27), one side of the first through hole (27) is an inclined surface, and the first through hole (27) is located above the limiting rod (25).

8. The multi-station horizontal CNC milling machine according to claim 7, characterized in that: A second through hole (28) is provided on the surface of the pressure plate (21), and the second through hole (28) is located above the driving rack (20). A blocking plate (29) is elastically slidably connected to the surface of the pressure plate (21), and the blocking plate (29) is located above the first through hole (27) and the second through hole (28). The end of the blocking plate (29) close to the first through hole (27) is an inclined surface. A third through hole (30) is provided on the surface of the blocking plate (29), and a pushing rod (31) is fixedly connected to the surface of the blocking plate (29). A limiting plate (32) is elastically slidably connected to the surface of the mounting seat (4), and the limiting plate (32) is located above the pressure plate (21) to limit the pressure plate (21). The end of the limiting plate (32) is an inclined surface, and the pushing rod (31) extends to the position of the limiting plate (32).

9. The multi-station horizontal CNC milling machine according to claim 6, characterized in that: A fixing block (33) is fixedly connected to the inner side of the sliding rod (22), and a certain distance is left between the fixing block (33) and the inner upper end of the sliding rod (22). A blocking block (34) is elastically slidably connected to the surface of the installation box (8), and the blocking block (34) is located on one side of the sliding rod (22).

10. The multi-station horizontal CNC milling machine according to claim 9, characterized in that: A retractable extrusion block (35) is fixedly connected to the position of the fixed block (33) inside the installation box (8); both sides of the retractable end of the extrusion block (35) are inclined surfaces; the retractable end of the extrusion block (35) is fixedly connected to the fixed block (33); a plurality of blocking rods (36) are elastically slidably connected to the inner wall surface of the installation box (8); the plurality of blocking rods (36) are located between the plurality of extrusion blocks (35); both ends of the blocking rods (36) are inclined surfaces; and the end of the blocking rod (36) extends below the extrusion block (35).

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