A milling machine

Abstract

The present invention discloses a processing milling machine, which belongs to the technical field of milling machines, and includes a sleeve block, a rotating motor and a rotating drum. The rotating motor is fixedly installed inside the sleeve block, and the rotating drum is coaxially connected to the output end of the rotating motor. An electric cylinder is fixedly connected to the inner wall of the sleeve block and located at one side of the rotating motor. A first-level synchronous precise locking mechanism is installed at the output end of the electric cylinder; the first-level synchronous precise locking mechanism includes a pressure sensor fixedly installed at the output end of the electric cylinder. The present invention uses a first-level synchronous precise locking mechanism, in which the pressure sensor carries the pressure block downward, two support shafts carry two sleeve pressure rods downward respectively, two pressure columns approach each other, the sleeve slider carries the locking pressure block to move leftward, the pressure value sensed by the pressure sensor is the same as the pressure value set by the controller, and the distance sensed by the calibration distance sensor is the same as the distance set by the controller, so that the milling cutter can be accurately docked to the specified position.

Description

Technical Field

[0001] The invention relates to the technical field of milling machines, in particular to a processing milling machine. Background Art

[0002] The milling machine is a widely used metal cutting machine tool, which is mainly used for machining workpieces. The milling machine can process various flat parts, such as flat plates and workbenches, and remove the raised parts on the surface of the blank by milling. Secondly, it can easily replace the spindle box part of the machining center, and expand it to a vertical type, with significantly expanded processing functions and scope.

[0003] Among the existing published technical documents, the Chinese patent publication number CN117399689A discloses a multi-station CNC gantry milling machine for mechanical processing. The milling machine technology has a motor fixedly mounted on an electric slide, a cutter head fixedly connected to the motor output shaft, drainage holes at the four corners of the base frame, a number of grooves on the electric bed, and a control panel electrically connected to the electric slide rail, the electric slide and the electric bed. The cleaning mechanism can achieve the effect of cleaning metal debris on the surface of the electric bed, reduce the labor intensity of the operator, and improve the milling efficiency. However, the milling machine has the following defects.

[0004] During the processing of the milling machine, different spindle milling cutters are replaced according to the milling needs. During the docking process, the milling cutter needs to be placed at a specified position, and then a locking force is applied using bolts or other methods. However, during the replacement of the spindle milling cutter, it is difficult to accurately dock the spindle milling cutter to the specified position, and it is difficult to achieve secondary synchronous and precise locking at the specified position according to the specified locking force. In this way, the milling cutter on the spindle is prone to loosening during use, resulting in a decrease in the milling accuracy of the milling machine. A milling machine is provided for this purpose. Summary of the invention

[0005] To this end, the present invention provides a milling machine to solve the technical problems existing in the prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a processing milling machine, comprising a sleeve block, a rotary motor and a rotary drum, wherein the rotary motor is fixedly installed inside the sleeve block, the rotary drum is coaxially connected to the output end of the rotary motor, an electric cylinder is fixedly connected to the inner wall of the sleeve block and located at a position on one side of the rotary motor, and a first-level synchronous and precise locking mechanism is installed at the output end of the electric cylinder; the first-level synchronous and precise locking mechanism comprises a pressure sensor fixedly installed at the output end of the electric cylinder, and a pressure block is fixedly connected to the bottom end of the pressure sensor, and a bearing ring is welded on one side of the pressure block; an articulated sleeve ring is installed on the outside of the bearing ring, and two support shafts are embedded and fixedly connected at the bottom end of the articulated sleeve ring, and the outer wall of each support shaft is rotatably connected to a sleeve pressure rod, and a pressure column is fixedly connected to the inner wall of the sleeve pressure rod and away from the support shaft; a sleeve slider is fixedly installed on one end of the pressure column, and a locking pressure block is fixedly connected to one side of the sleeve slider; a second-level synchronous and precise locking mechanism is provided at the bottom end of the sleeve slider; a multi-directional calibration component is provided on one side of the outer wall of the bearing ring.

[0007] Preferably, the bearing ring is rotatably connected to the hinge ring, and the cross-sectional shape of the bearing ring is set to a circular ring; the outer wall of the bearing ring and the inner wall of the hinge ring are both set to smooth surfaces, the sleeve slider and the hinge ring are both rotatably connected to the sleeve pressure rod, the two support shafts are arranged equidistantly in a circular ring, the inner wall of the sleeve slider is slidably connected with a sliding shaft, a sliding frame is fixedly installed at one end of the sliding shaft, and the sliding frame is fixedly connected to the rotating drum; a milling cutter is inserted into the inner wall of the rotating drum, and two upper pressure grooves are provided on the outer wall of the milling cutter, and a lower pressure groove is provided on the outer wall of the milling cutter and below the upper pressure groove, and a plurality of balls are rollingly connected to the top and bottom surfaces of the bearing ring, and the plurality of balls are arranged equidistantly in a circular ring; the plurality of balls are rollingly connected to the hinge ring.

[0008] A threaded sleeve block is fixedly installed on one side of the sleeve block, a milling machine column is slidably connected to one side of the threaded sleeve block, and the sleeve block and the milling machine column are slidably connected; a screw is threadedly connected to the inner wall of the threaded sleeve block, a driving motor for driving the screw to rotate is fixedly installed on the top of the milling machine column, a controller is fixedly installed on one side of the milling machine column, and a milling machine platform is installed at the bottom end of the inner wall of the milling machine column.

[0009] When this technology is used for milling, the electric cylinder pushes the pressure sensor downward, the pressure block carries the bearing ring downward, the sleeve block slides down along the outer wall of the sliding column, the ball drives the hinged sleeve ring downward, and the two support shafts carry two sleeve pressure rods downward respectively. The sleeve pressure rod carries the pressure column to move to the left, and the other pressure column moves to the right. The pressure column carries the sleeve slider to move to the left along the outer wall of the sliding shaft, the sleeve slider carries the locking pressure block to move to the left, and the other locking pressure block moves to the right. The locking pressure block docks with the upper pressure groove, and the other locking pressure block docks with the other upper pressure groove at the same time for extrusion. If the pressure value sensed by the pressure sensor is the same as the pressure value set by the controller, the two locking pressure blocks can achieve synchronous and precise locking of the milling cutter according to the specified locking force.

[0010] Preferably, the secondary synchronous precise locking mechanism includes a linkage block fixedly arranged at the bottom end of the sleeve slider; the inner wall of the linkage block is slidably connected with a guide column, and one end of the guide column is fixedly connected with a limiting block, and the guide column is welded to the outer wall of the rotating drum; an extrusion block is fixedly connected to one side of the linkage block and located below the guide column, and a locking strip is welded to one side of the extrusion block, one side of the locking strip and one side of the locking pressure block are in the same vertical plane, the locking strip and the extrusion block are both made of stainless steel, and the vertical cross-section of the extrusion block is set to a rectangular shape.

[0011] When this technology is used for milling, when the sleeve slider moves to the left, the sleeve slider carries the linkage block to move to the left. The linkage block moves to the left along the outer wall of the guide column, and the linkage block drives the extrusion block to move to the left. The locking strip is inserted into the lower pressure groove at the same time, and the other locking strip can be inserted into the other lower pressure groove at the same time. The reinforcement strip supports the calibration distance sensor. When the distance sensed by the calibration distance sensor is the same as the distance set by the controller, the pressure value sensed by the pressure sensor is the same as the pressure value set by the controller, ensuring that the two locking blocks are squeezed into the two upper pressure grooves according to the specified extrusion force, ensuring that the two locking strips can be squeezed into the two lower pressure grooves according to the specified extrusion force.

[0012] Preferably, the multi-directional calibration assembly includes a sleeve block fixedly connected to one side of the outer wall of the bearing ring; a sliding column is slidably connected to the inner wall of the sleeve block, and the top end of the sliding column is fixedly connected to the sleeve block, a support bar is provided under the sleeve block, and the support bar and the sliding column are welded; a lateral distance sensor is fixedly installed on one end of the support bar, a support block is fixedly connected to the top end of the support bar, a vertical distance sensor is fixedly installed on one side of the support block, and a reinforcement bar is fixedly provided on the other side of the support block, a calibration distance sensor is fixedly connected to the top end of the reinforcement bar, the vertical cross-section of the support block is set to be L-shaped, and the top end surface of the support bar is set parallel to the bottom end surface of the vertical distance sensor.

[0013] When this technology is used for milling, the milling cutter is inserted into the drum, and the slide column supports the support bar. The lateral distance sensor senses the distance of the right side of the milling cutter, while the support bar supports the support block, and the vertical distance sensor senses the vertical distance of the milling cutter convex disc. When the value sensed by the vertical distance sensor is the same as the value set by the controller, and the value sensed by the lateral distance sensor is the same as the value set by the controller, the electric cylinder is started by the controller.

[0014] The present invention has the following advantages:

[0015] 1. The present invention uses a first-level synchronous precise locking mechanism. The electric cylinder pushes the pressure sensor downward, and the pressure sensor carries the pressure block downward. The bearing ring can carry the sleeve block downward, and the two support shafts carry the two sleeve pressure rods downward respectively. The two pressure columns approach each other, and the sleeve slide block moves left along the outer wall of the slide frame. The sleeve slide block carries the locking pressure block to move left, and the locking pressure block docks with the upper pressure groove. Another locking pressure block docks and squeezes with another upper pressure groove at the same time. When the pressure value sensed by the pressure sensor is the same as the pressure value set by the controller, and the distance sensed by the calibration distance sensor is the same as the distance set by the controller, the electric cylinder is closed. In this way, the milling cutter can be accurately docked to the specified position. At the specified position, the first-level synchronous precise locking of the milling cutter can be achieved according to the specified locking force. In the later stage, the milling cutter continues to maintain the specified locking force during use, so as to avoid the problem of loosening of the milling cutter during milling, and greatly improve the milling accuracy of the milling machine.

[0016] 2. The present invention adopts a two-level synchronous precise locking mechanism. When the sleeve slider moves to the left, the sleeve slider carries the linkage sleeve block to move to the left, and the linkage sleeve block drives the extrusion block to move to the left. The locking strip is inserted into the lower pressure groove at the same time, and the other locking strip can be synchronously inserted into the other lower pressure groove. The two locking strips can be synchronously plugged into the two lower pressure grooves. The calibration distance sensor senses the leftward movement distance of the linkage sleeve block, which can accurately make the milling cutter dock to the specified position. At the specified position, two-level synchronous precise locking can be achieved according to the specified locking force. During use, the milling cutter continues to maintain the specified position and mills according to the specified locking force to avoid loosening, thereby greatly improving the milling accuracy of the milling machine.

[0017] 3. The present invention adopts a multi-directional proofreading component, through which the milling cutter is inserted into the inside of the rotating drum, the sleeve block supports the sliding column, and the support bar supports the lateral distance sensor. The lateral distance sensor realizes distance sensing of the right side of the milling cutter, and the vertical distance sensor realizes vertical distance sensing of the milling cutter convex disc. When the value sensed by the vertical distance sensor is the same as the value set by the controller, and the value sensed by the lateral distance sensor is the same as the value set by the controller, the first and second levels are synchronized to lock the milling cutter according to the specified position, so as to avoid shaking of the milling cutter during milling and greatly improve the milling accuracy of the milling machine.

[0018] According to the mutual influence of the above-mentioned multiple functions, the horizontal distance sensor is first used to sense the distance of the right side of the milling cutter, and the vertical distance sensor is used to sense the vertical distance of the milling cutter convex disc. At the same time, the milling cutter is accurately docked to the specified position. The two locking blocks can be docked on the milling cutter at the specified position according to the specified locking force. At the same time, the two locking strips can be synchronously plugged into the two lower pressure grooves according to the specified position and the specified locking force. In summary, the milling cutter can be accurately docked to the specified position, and the first and second levels of synchronous and precise locking of the milling cutter can be achieved at the specified position according to the specified locking force. In the later stage, the milling cutter continues to maintain the specified locking force and the specified position for milling during use, avoiding the problem of loosening of the milling cutter during the milling process, and greatly improving the milling accuracy of the milling machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0020] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0021] Figure 1 It is a schematic diagram of the main structure of the milling machine of the present invention;

[0022] Figure 2 It is a bottom view structural schematic diagram of the processing milling machine of the present invention;

[0023] Figure 3 It is a schematic diagram of a partial structure of the connection between the sleeve block and the rotating motor of the present invention;

[0024] Figure 4 It is a schematic diagram of the vertical cross-section structure of the milling machine of the present invention;

[0025] Figure 5 It is a schematic diagram of a partial structure of a vertical section of the connection between the pressing block and the bearing ring of the present invention;

[0026] Figure 6 For the present invention Figure 5 The enlarged structural diagram at A in the middle;

[0027] Figure 7 It is a schematic diagram of the partial structure of the connection between the milling machine column and the driving motor of the present invention;

[0028] Figure 8 It is a schematic diagram of a partial structure of a vertical section of the connection between the sleeve sliding block and the linkage sleeve block of the present invention;

[0029] Fig. 9 It is a schematic diagram of the main structure of the multi-directional proofreading component of the present invention;

[0030] Fig.10 It is a schematic diagram of a partial structure of the connection between the support bar and the lateral distance sensor of the present invention;

[0031] In the figure: 1, sleeve block; 2, rotating motor; 3, rotating drum; 4, electric cylinder; 5, pressure sensor; 6, pressure block; 7, bearing ring; 8, hinge sleeve ring; 9, support shaft; 10, sleeve pressure rod; 11, pressure column; 12, sleeve slide; 13, locking pressure block; 14, sliding shaft; 15, sliding frame; 16, milling cutter; 17, upper pressure groove; 18, lower pressure groove; 19, ball bearing; 20, threaded sleeve block; 21, milling machine column; 22, screw; 23, controller; 24, milling machine platform; 25, linkage sleeve block; 26, guide column; 27, limit block; 28, extrusion block; 29, locking strip; 30, sleeve block; 31, slide column; 32, support bar; 33, lateral distance sensor; 34, support block; 35, vertical distance sensor; 36, reinforcement strip; 37, calibration distance sensor; 38, driving motor. DETAILED DESCRIPTION

[0032] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] As attached Figure 1 - Fig.10 The processing milling machine shown in the figure is provided with a primary synchronous precise locking mechanism, a secondary synchronous precise locking mechanism, and a multi-directional proofreading component. The settings of each mechanism and component can accurately connect the milling cutter 16 to the specified position, and the primary and secondary synchronous precise locking of the milling cutter 16 can be achieved at the specified position according to the specified locking force. The milling cutter 16 will continue to maintain the specified locking force and the specified position for milling during use, thereby avoiding the loosening problem of the milling cutter 16 during the milling process, and greatly improving the milling accuracy of the milling machine. The specific structural settings of each mechanism and component are as follows.

[0034] In this technical solution, as shown in the attached Figure 1 - Figure 5 As shown, the rotating motor 2 is fixedly installed inside the sleeve block 1, the rotating drum 3 is coaxially connected to the output end of the rotating motor 2, the inner wall of the sleeve block 1 and is fixedly connected to an electric cylinder 4 at a position on one side of the rotating motor 2, and a first-level synchronous precise locking mechanism is installed at the output end of the electric cylinder 4; the first-level synchronous precise locking mechanism includes a pressure sensor 5 fixedly installed at the output end of the electric cylinder 4, and a pressure block 6 is fixedly connected to the bottom end of the pressure sensor 5, and a bearing ring 7 is welded to one side of the pressure block 6; an articulated collar 8 is installed on the outside of the bearing ring 7, and two support shafts 9 are embedded and fixedly connected at the bottom end of the articulated collar 8, and the outer wall of each support shaft 9 is rotatably connected to a sleeve pressure rod 10, and a pressure column 11 is fixedly connected to the inner wall of the sleeve pressure rod 10 and away from the support shaft 9.

[0035] A sleeve slider 12 is fixedly mounted on one end of the pressure column 11, and a locking pressure block 13 is fixedly connected to one side of the sleeve slider 12; a two-level synchronous precision locking mechanism is provided at the bottom end of the sleeve slider 12; a multi-directional calibration component is provided on one side of the outer wall of the bearing ring 7.

[0036] In this technical solution, as shown in the attached Figure 6 - Figure 8 As shown, the inner wall of the sleeve slider 12 is slidably connected with a sliding shaft 14, and a sliding frame 15 is fixedly installed at one end of the sliding shaft 14, and the sliding frame 15 is fixedly connected to the rotating drum 3; a milling cutter 16 is inserted into the inner wall of the rotating drum 3, and the outer wall of the milling cutter 16 is provided with two upper pressure grooves 17, and the outer wall of the milling cutter 16 is provided with a lower pressure groove 18 below the upper pressure groove 17, so that the pressure column 11 carries the sleeve slider 12 to move left along the outer wall of the sliding shaft 14, the sleeve slider 12 moves left along the outer wall of the sliding frame 15, the sleeve slider 12 carries the locking pressure block 13 to move left, and the other locking pressure block 13 moves right, the locking pressure block 13 is inserted from the inside of the rotating drum 3 into the inside of the milling cutter 16, the locking pressure block 13 is docked with the upper pressure groove 17, and the other locking pressure block 13 is docked and squeezed with the other upper pressure groove 17 at the same time. And the locking strip 29 is inserted into the lower pressing groove 18 at the same time, and another locking strip 29 can be inserted into another lower pressing groove 18 synchronously.

[0037] The top and bottom surfaces of the bearing ring 7 are both rollingly connected with a plurality of balls 19, and the plurality of balls 19 are arranged in a circular ring with equal spacing; the plurality of balls 19 are rollingly connected with the hinged collar 8, so that the bearing ring 7 carries the plurality of balls 19 to move downward, the balls 19 drive the hinged collar 8 to move downward, and the hinged collar 8 carries the two support shafts 9 to achieve synchronous downward movement. Later, the hinged collar 8 rotates on the plurality of balls 19, and the balls 19 can roll inside the bearing ring 7 to achieve rolling operation.

[0038] In this technical solution, as shown in the attached Figure 1 - Figure 7As shown, a threaded sleeve block 20 is fixedly installed on one side of the sleeve block 1, and a milling machine column 21 is slidably connected to one side of the threaded sleeve block 20, and the sleeve block 1 and the milling machine column 21 are slidably connected; the inner wall of the threaded sleeve block 20 is threadedly connected with a screw rod 22, and a driving motor 38 for driving the screw rod 22 to rotate is fixedly installed on the top of the milling machine column 21, and a controller 23 is fixedly installed on one side of the milling machine column 21. A milling machine platform 24 is installed at the bottom end of the inner wall of the milling machine column 21, so that the milling workpiece can be placed on the milling machine platform 24, and the driving motor 38 is started to drive the screw rod 22 to rotate, and the milling machine column 21 supports the driving motor 38 to increase the stability of the driving motor 38, and the screw rod 22 carries the threaded sleeve block 20 to move downward under the action of the thread transmission force, and the threaded sleeve block 20 carries the sleeve block 1 to move downward, and the milling cutter 16 moves downward and rotates for milling.

[0039] In this technical solution, as shown in the attached Figure 6 - Figure 8 As shown, the two-stage synchronous precise locking mechanism includes a linkage block 25 fixedly arranged at the bottom end of the sleeve slider 12; the inner wall of the linkage block 25 is slidably connected with a guide column 26, and one end of the guide column 26 is fixedly connected to a limit block 27, and the guide column 26 is welded to the outer wall of the rotating drum 3; an extrusion block 28 is fixedly connected to one side of the linkage block 25 and located below the guide column 26, and a locking strip 29 is welded to one side of the extrusion block 28, and one side of the locking strip 29 is in the same vertical plane as one side of the locking pressure block 13, the locking strip 29 and the extrusion block 28 are both made of stainless steel, and the vertical cross-section shape of the extrusion block 28 is set to be rectangular.

[0040] In this technical solution, as shown in the attached Figure 5 - Fig.10 As shown, the multi-directional calibration assembly includes a sleeve block 30 fixedly connected to one side of the outer wall of the bearing ring 7; a sliding column 31 is slidably connected to the inner wall of the sleeve block 30, and the top of the sliding column 31 is fixedly connected to the sleeve block 1, a support bar 32 is provided below the sleeve block 30, and the support bar 32 and the sliding column 31 are welded; a lateral distance sensor 33 is fixedly installed on one end of the support bar 32, a support block 34 is fixedly connected to the top of the support bar 32, a vertical distance sensor 35 is fixedly installed on one side of the support block 34, and a reinforcement bar 36 is fixedly provided on the other side of the support block 34, and a calibration distance sensor 37 is fixedly connected to the top of the reinforcement bar 36, the vertical cross-section shape of the support block 34 is set to be L-shaped, and the top surface of the support bar 32 is arranged parallel to the bottom end surface of the vertical distance sensor 35.

[0041] The use process of the milling machine of the present invention is as follows:

[0042] First, during the multi-directional calibration of the present invention, when the milling cutter 16 is inserted into the drum 3, the sleeve block 1 supports the slide column 31, and the slide column 31 supports the support bar 32. The support bar 32 supports the lateral distance sensor 33, and the lateral distance sensor 33 realizes distance sensing for the right side of the milling cutter 16. At the same time, the support bar 32 supports the support block 34, and the support block 34 supports the vertical distance sensor 35, and the vertical distance sensor 35 realizes vertical distance sensing for the convex part of the milling cutter 16. When the value sensed by the vertical distance sensor 35 is the same as the value set by the controller 23, and the value sensed by the lateral distance sensor 33 is the same as the value set by the controller 23, the electric cylinder 4 is started by the controller 23.

[0043] At the same time, when the present invention performs the first-level synchronous precise locking, the electric cylinder 4 pushes the pressure sensor 5 downward, the pressure sensor 5 carries the pressure block 6 downward, the pressure block 6 carries the bearing ring 7 downward, and the bearing ring 7 can carry the sleeve block 30 downward. The sleeve block 30 slides down along the outer wall of the sliding column 31, and at the same time, the bearing ring 7 carries a plurality of balls 19 downward, the balls 19 drive the hinged sleeve ring 8 downward, and the hinged sleeve ring 8 carries two support shafts 9 to achieve synchronous downward movement. The two support shafts 9 respectively carry two sleeve pressure rods 10 downward.

[0044] The sleeve pressure rod 10 carries the pressure column 11 to move to the left, and the other pressure column 11 moves to the right, and the two pressure columns 11 approach each other, and the pressure column 11 carries the sleeve slider 12 to move to the left along the outer wall of the sliding shaft 14, and the sleeve slider 12 moves to the left along the outer wall of the sliding frame 15, and the sleeve slider 12 carries the locking pressure block 13 to move to the left, and the other locking pressure block 13 moves to the right, and the locking pressure block 13 is inserted from the inside of the rotating drum 3 into the inside of the milling cutter 16, and the locking pressure block 13 is docked with the upper pressure groove 17, and the other locking pressure block 13 is docked with the other upper pressure groove 17 at the same time for extrusion, when the pressure value sensed by the pressure sensor 5 is the same as the pressure value set by the controller 23, the two locking pressure blocks 13 can achieve synchronous and precise locking of the milling cutter 16 according to the specified locking force.

[0045] At the same time, when the present invention performs secondary synchronous precise locking, when the sleeve slider 12 moves to the left, the sleeve slider 12 carries the linkage block 25 to move to the left. The linkage block 25 moves to the left along the outer wall of the guide column 26, and the limit block 27 can realize the side limit of the linkage block 25. The linkage block 25 drives the extrusion block 28 to move to the left, and the extrusion block 28 carries the locking strip 29 to move to the left. The locking strip 29 is inserted into the lower pressing groove 18 at the same time, and another locking strip 29 can be synchronously inserted into another lower pressing groove 18. The two locking strips 29 can be synchronously plugged into the two lower pressing grooves 18. In addition, the reinforcement strip 36 supports the calibration distance sensor 37, and the calibration distance sensor 37 senses the leftward displacement distance of the linkage block 25. When the distance sensed by the calibration distance sensor 37 is the same as the distance set by the controller 23, and the pressure value sensed by the pressure sensor 5 is the same as the pressure value set by the controller 23, it is ensured that the two locking blocks 13 are squeezed in the two upper pressing grooves 17 according to the specified squeezing force, and that the two locking strips 29 can be squeezed in the two lower pressing grooves 18 according to the specified squeezing force. At the same time, the two locking blocks 13 and the two locking strips 29 can be accurately squeezed at the specified distance position.

[0046] Then, when the present invention performs milling processing, the workpiece to be milled is placed on the milling machine platform 24, and the rotary drum 3 is driven to rotate by the rotary motor 2. The rotary drum 3 carries the milling cutter 16 to rotate, and the milling cutter 16 carries two locking pressure blocks 13 to rotate at the same time. At the same time, the milling cutter 16 can also drive the two locking strips 29 to rotate, and the locking pressure block 13 carries the rotation, and the sleeve slider 12 carries the pressure column 11 to rotate, and the pressure column 11 carries the sleeve pressure rod 10 to rotate, and the sleeve pressure rod 10 carries the support shaft 9 to rotate. The support shaft 9 carries the articulated collar 8 to rotate, and the articulated collar 8 rotates along the inner wall of the bearing ring 7. At the same time, the articulated collar 8 rotates on multiple balls 19, and the balls 19 can roll inside the bearing ring 7, ensuring that the two locking pressure blocks 13 and the two locking strips 29 are synchronously locked and milled according to the specified pressure to avoid loosening of the locking pressure block 13.

[0047] The driving motor 38 is started through the controller 23, and the driving motor 38 drives the screw 22 to rotate, and the milling machine column 21 supports the driving motor 38 to increase the stability of the driving motor 38. The screw 22 carries the threaded sleeve 20 to move downward under the action of the thread transmission force, the threaded sleeve 20 carries the sleeve 1 to move downward, the sleeve 1 carries the rotating motor 2 to move downward, the rotating motor 2 drives the rotating drum 3 to move the milling cutter 16 downward, and the milling cutter 16 contacts the workpiece to realize the milling operation.

[0048] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0049] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0050] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A milling machine, comprising a sleeve (1), a rotary motor (2) and a rotary drum (3), wherein the rotary motor (2) is fixedly mounted inside the sleeve (1), the rotary drum (3) is coaxially connected to the output end of the rotary motor (2), and an electric cylinder (4) is fixedly connected to the inner wall of the sleeve (1) at a position on one side of the rotary motor (2), characterized in that: The output end of the electric cylinder (4) is equipped with a first-level synchronous precision locking mechanism; The first-level synchronous precise locking mechanism comprises a pressure sensor (5) fixedly mounted on the output end of the electric cylinder (4), and a pressure block (6) is fixedly connected to the bottom end of the pressure sensor (5), and a bearing ring (7) is welded to one side of the pressure block (6); The bearing ring (7) is provided with an articulated collar (8) mounted on the outside, and the bottom end of the articulated collar (8) is embedded and fixedly connected with two support shafts (9), and the outer wall of each support shaft (9) is rotatably connected with a sleeve pressure rod (10), and the inner wall of the sleeve pressure rod (10) is fixedly connected with a pressure column (11) at a position away from the support shaft (9); A sleeve sliding block (12) is fixedly mounted on one end of the pressure column (11), and a locking pressure block (13) is fixedly connected to one side of the sleeve sliding block (12); The bottom end of the sleeve sliding block (12) is provided with a two-level synchronous precision locking mechanism; A multi-directional calibration component is provided on one side of the outer wall of the bearing ring (7), and the multi-directional calibration component comprises a sleeve block (30) fixedly connected to one side of the outer wall of the bearing ring (7); The inner wall of the sleeve block (30) is slidably connected to a sliding column (31), and the top end of the sliding column (31) is fixedly connected to the sleeve block (1). A support bar (32) is provided below the sleeve block (30), and the support bar (32) and the sliding column (31) are welded; A lateral distance sensor (33) is fixedly mounted on one end of the support bar (32), a support block (34) is fixedly connected to the top end of the support bar (32), a vertical distance sensor (35) is fixedly mounted on one side of the support block (34), and a reinforcement bar (36) is fixedly arranged on the other side of the support block (34), and a calibration distance sensor (37) is fixedly connected to the top end of the reinforcement bar (36).

2. The milling machine according to claim 1, characterized in that: The bearing ring (7) is rotatably connected to the hinged collar (8), and the cross-sectional shape of the bearing ring (7) is set to be annular; The outer wall of the bearing ring (7) and the inner wall of the hinged collar (8) are both configured as smooth surfaces.

3. The milling machine according to claim 1, characterized in that: The sleeve sliding block (12) and the hinged sleeve ring (8) are both rotatably connected to the sleeve pressure rod (10), and the two support shafts (9) are arranged in a circular ring with equal spacing.

4. The milling machine according to claim 1, characterized in that: The inner wall of the sleeve sliding block (12) is slidably connected to a sliding shaft (14), a sliding frame (15) is fixedly mounted on one end of the sliding shaft (14), and the sliding frame (15) is fixedly connected to the rotating drum (3); A milling cutter (16) is inserted into the inner wall of the rotating drum (3), two upper pressing grooves (17) are provided on the outer wall of the milling cutter (16), and a lower pressing groove (18) is provided on the outer wall of the milling cutter (16) below the upper pressing groove (17).

5. The milling machine according to claim 1, characterized in that: The top surface and the bottom surface of the bearing ring (7) are both rollingly connected with a plurality of balls (19), and the plurality of balls (19) are arranged in a circular ring at equal intervals; The plurality of balls (19) are all rollingly connected to the hinged collar (8).

6. The milling machine according to claim 1, characterized in that: A threaded sleeve block (20) is fixedly mounted on one side of the sleeve block (1), a milling machine column (21) is slidably connected to one side of the threaded sleeve block (20), and the sleeve block (1) and the milling machine column (21) are slidably connected; The inner wall of the threaded sleeve block (20) is threadedly connected to a screw rod (22); a driving motor (38) for driving the screw rod (22) to rotate is fixedly mounted on the top of the milling machine column (21); a controller (23) is fixedly mounted on one side of the milling machine column (21); and a milling machine platform (24) is mounted on the bottom end of the inner wall of the milling machine column (21).

7. The milling machine according to claim 1, characterized in that: The secondary synchronous precise locking mechanism comprises a linkage sleeve block (25) fixedly arranged at the bottom end of the sleeve sliding block (12); The inner wall of the linkage sleeve (25) is slidably connected to a guide column (26), and one end of the guide column (26) is fixedly connected to a limit block (27), and the guide column (26) is welded to the outer wall of the rotating drum (3); An extrusion block (28) is fixedly connected to one side of the linkage sleeve block (25) and located below the guide column (26), and a locking strip (29) is welded to one side of the extrusion block (28), and one side surface of the locking strip (29) and one side surface of the locking pressure block (13) are located in the same vertical plane.

8. The milling machine according to claim 7, characterized in that: The locking strip (29) and the extrusion block (28) are both made of stainless steel, and the vertical cross-section of the extrusion block (28) is set to be rectangular.

9. The milling machine according to claim 1, characterized in that: The vertical cross-section of the support block (34) is set to be L-shaped, and the top end surface of the support bar (32) is arranged parallel to the bottom end surface of the vertical distance sensor (35).

Images