Casting groove milling device

Abstract

The invention relates to the field of workpiece groove milling, in particular to a casting groove milling device which comprises a lathe bed, a stand column and a workbench. A y-direction movement assembly is installed at the top of the lathe bed, an x-direction movement assembly is installed on the y-direction movement assembly, a rotating assembly used for driving the workbench to rotate is installed on the x-direction movement assembly, a clamping assembly is installed on the workbench, and a pressing assembly is installed on the clamping assembly. A z-direction movement assembly is installed on the stand column, a main shaft is installed on the z-direction movement assembly, a cutter assembly is detachably connected into the main shaft, and a cutter fixing assembly used for fixing the cutter assembly is installed on the main shaft. An existing milling machine has the problems that when a circular groove or a spiral groove is milled, the machining precision is low, and the machining efficiency is low. When the device is used for milling the circular groove or the spiral groove, the machining precision is high, and the machining efficiency is high.

Description

Technical Field

[0001] The invention relates to the field of groove milling of workpieces, and in particular to a casting groove milling device. Background Art

[0002] Castings are objects with certain shapes, sizes and properties that are obtained by pouring, injecting, sucking or other casting methods into a pre-prepared mold after smelting liquid metal, cooling and subsequent processing such as grinding. They account for a large proportion of mechanical products.

[0003] In order to make castings meet higher engineering requirements, they are usually further refined by milling grooves. Milling machines are currently used for milling grooves of castings. When milling circular grooves or spiral grooves, milling machines mainly simulate circular or spiral groove trajectories through linear linkage interpolation of the worktable in the XY plane. When milling circular grooves, it is necessary to control the XY axis to move synchronously along the arc trajectory, the tool does not move, and the worktable drives the workpiece to move to form a circle; when milling spiral grooves, it is necessary to control the movement of the XY axis and the vertical feed of the worktable (Z axis) at the same time, and realize the spiral trajectory through three-axis linkage; these two groove milling processes rely on the interpolation algorithm of the CNC system, which is prone to small errors, low processing accuracy, and multi-axis linkage is required when processing circular or spiral grooves. The speed is limited by the interpolation speed, and the efficiency is low.

[0004] Therefore, the existing milling machines have the problems of low machining accuracy and low efficiency when milling circular grooves or spiral grooves. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the disadvantages of the above-mentioned prior art and provide a casting groove milling device with high processing accuracy and high processing efficiency when milling circular grooves or spiral grooves.

[0006] In order to solve the above technical problems, the present invention provides a casting milling device including a bed, a column arranged on the rear side of the bed and a workbench capable of rotating around the z-direction; a y-direction motion component with an adjustable distance from the column is installed on the top of the bed, an x-direction motion component with an adjustable position in the x-direction is installed on the y-direction motion component, a rotating component for driving the workbench to rotate is installed on the x-direction motion component, a clamping component with a changeable clamping distance and capable of fixing the workpiece from the x-direction is installed on the workbench, a clamping component with an adjustable distance from the top of the workbench is installed on the clamping component and capable of fixing the workpiece from the z-direction; a z-direction motion component with an adjustable height is installed on the side of the column close to the bed, a spindle with an adjustable height is installed on the z-direction motion component, a tool component with an adjustable milling cutter width is detachably connected to the spindle, and a fixed tool component for fixing the tool component is installed on the spindle.

[0007] As a further improvement of the present invention: the rotating assembly includes a first cylinder with a single-side opening and the opening facing upward, which is fixedly mounted on the x-direction motion assembly; an inner gear ring is rotatably mounted in the first cylinder; a vertical third motor for driving the inner gear ring to rotate is fixedly mounted on the x-direction motion assembly; the output shaft of the third motor is transmission-connected to the inner gear ring through a second gear transmission member; a circular ring is fixedly mounted outside the inner gear ring, and the circular ring is fixedly connected to the workbench.

[0008] As a further improvement of the present invention: the workbench is a hollow shell composed of a top cover and a trough body, the top cover includes a frame and a horizontal plate clamped in the frame; the clamping assembly includes a clamping plate that can slide synchronously toward or away from each other along the x-direction on the top of the horizontal plate, and a horizontal positive and negative ball screw is rotatably installed at the bottom of the horizontal plate, and a right-handed screw nut and a left-handed screw nut are respectively provided at both ends of the positive and negative ball screw, and the left-handed screw nut and the right-handed screw nut are respectively fixedly connected to the two clamping plates through at least one connecting block, and the two clamping plates can be synchronously moved toward or away from each other through the rotation of the positive and negative ball screw, and sliding grooves for at least two connecting blocks to slide along the x-direction are provided on the left and right sides of the horizontal plate; a horizontal fifth motor is fixedly installed in the trough body, and the fifth motor is transmission-connected to the positive and negative ball screw through a third gear transmission member.

[0009] Preferably, the clamping plate includes a vertical plate and a horizontal plate at the bottom of the vertical plate which is vertically mounted on a side of the vertical plate away from the workpiece, the clamping assembly includes a clamping member which is symmetrically arranged on the left and right, the clamping member includes a clamping rod which is hinged on the top of the vertical plate of the clamping plate through a first rotating shaft and can rotate around the y direction, and a clamping cylinder is vertically fixedly mounted on a side of the clamping rod close to the workpiece; a horizontal second rotating shaft is arranged on the front side of the first rotating shaft, and a horizontal third rotating shaft is arranged on the rear side of the first rotating shaft, and the second rotating shaft and the third rotating shaft are parallel to the first rotating shaft; the front end of the first rotating shaft is connected to the first small rotating shaft by a first small rotating shaft. The connecting rod is transmission-connected to the rear end of the second rotating shaft, and the rear end of the first rotating shaft is transmission-connected to the front end of the third rotating shaft through the second small connecting rod; a first shaft parallel to the second rotating shaft is fixedly installed on the front side of the top of the cross plate, and a second shaft parallel to the third rotating shaft is fixedly installed on the front side of the top of the cross plate, the second rotating shaft is connected to the first shaft through a first tension spring, and the third rotating shaft is connected to the second shaft through a second tension spring, and the rotation of the clamping rod can be achieved through the expansion and contraction of the first tension spring and the second tension spring; a control member for controlling the expansion and contraction of the first tension spring and the second tension spring is provided under the top cover.

[0010] Preferably, the control member includes a horizontal telescopic member fixedly mounted on the top of the bottom plate of the trough body, a square shell is fixedly mounted on the top of the telescopic end of the telescopic member, an inclined through slot inclined from left to right and from bottom to top is provided in the middle of the front side and the rear side of the square shell, a horizontally arranged H-shaped frame is slidably installed in the inclined through slot, the two vertical ends of the H-shaped frame are respectively located on the front and rear sides of the inclined through slot, and the left and right ends of the two vertical ends of the H-shaped frame away from the square shell are respectively vertically installed with L-shaped rods, the short section of the L-shaped rod is perpendicular to the vertical end of the H-shaped frame, the front side and the rear side of the trough body are respectively provided with first limiting holes for the short sections of the two L-shaped rods to slide up and down, the front side and the rear side of the frame are respectively provided with second limiting holes for the long sections of the two L-shaped rods to slide up and down, and the top of the long section of the L-shaped rod is provided with a horizontal toggle rod perpendicular to the first rotating shaft.

[0011] As a further improvement of the present invention: a second cylinder with a single-side opening and the opening facing downward is fixedly installed on the z-direction motion component, and the cavity of the second cylinder is divided into a first upper cavity and a first lower cavity by a horizontally arranged first partition plate, and a main shaft capable of sliding up and down is slidably installed in the first lower cavity; at least one vertical rod is vertically fixedly installed on the top of the main shaft, and the top of the vertical rod passes through the first partition plate and extends to the first upper cavity, and a vertical fourth lead screw is rotatably installed in the first upper cavity, and a vertical sixth motor for driving the fourth lead screw to rotate around the z-direction is installed on the top of the second cylinder, and a fourth lead screw nut is arranged on the fourth lead screw, and the fourth lead screw nut is fixedly connected to the vertical rod.

[0012] As a further improvement of the present invention: the main shaft includes a third cylinder with a single-side opening and the opening facing downward, the cavity of the third cylinder is divided into a second upper cavity and a second lower cavity by a horizontally arranged first circular plate, and a tool mounting frame for detachably connecting the tool assembly is rotatably installed in the center hole of the first circular plate, the tool mounting frame includes a small circular plate and a hollow cylinder with double-sided openings vertically installed on the top of the small circular plate, the outer diameter of the small circular plate is smaller than the inner diameter of the third cylinder, an outer fixed sleeve at the bottom of the hollow cylinder is provided with an outer gear ring, a vertical seventh motor for driving the outer gear ring to rotate around the z direction is provided on the top of the first circular plate, the output shaft of the seventh motor passes through the first circular plate and extends to the second lower cavity, and a sixth gear meshing with the outer gear ring is fixedly installed on the top of the output shaft of the seventh motor.

[0013] Preferably, a top cover is fixedly installed on the top of the tool mounting frame, a metal conductive ring is arranged on the top of the top cover, a brush head for contacting the metal conductive ring is arranged next to the metal conductive ring, and a conductive socket for plugging with the vertical eighth motor in the tool assembly is arranged at the bottom of the top cover; the tool assembly includes a tool rod frame fixedly installed on the eighth motor, the tool rod frame has a third upper cavity and a third lower cavity divided by the second partition plate, a slider capable of sliding up and down is installed in the third upper cavity, the output shaft of the eighth motor is fixedly connected to the vertical fifth lead screw, and the slider can be lifted and lowered in the third upper cavity by rotating the output shaft of the eighth motor, the bottom of the slider passes through the second partition plate and extends to the third lower cavity, and an inclined wedge is installed at the bottom of the slider; The tool assembly also includes a first handle and a second handle installed in the third lower cavity. The first handle and the second handle are both semi-cylindrical structures and can be spliced ​​into a complete cylinder. A plurality of mutually parallel first connecting structures are arranged from top to bottom on the planar bottom of the first handle, and a plurality of second connecting structures that match the shapes, sizes and positions of the plurality of mutually parallel first connecting structures are arranged from top to bottom on the planar bottom of the second handle. A driving block that can slide toward each other synchronously on the horizontal plane as the inclined wedge rises and slide away synchronously on the horizontal plane as the inclined wedge descends is installed on the top of the second handle, and a side of the driving block away from the inclined wedge is connected to the inner wall of the tool rod holder through a reset spring; blades are fixedly installed on the lower sides of the planar bottoms of the first handle and the second handle respectively.

[0014] As a further improvement of the present invention: the fixed knife assembly includes a circular groove fixedly installed on the main shaft, the bottom of the circular groove is provided with a tool passing hole for the tool assembly to pass through, and a valve that can be opened and closed is provided in the tool passing hole for fixing the tool assembly; the valve includes a first valve plate and a second valve plate that can slide radially in the tool passing hole in the tool passing hole; a second circular ring plate is fixedly installed on the top of the bottom of the circular groove, and small connecting columns are vertically fixed on the top of the first valve plate and the second valve plate, and the small connecting columns pass through the top of the bottom of the groove and extend into the circular groove, and a sliding strip hole for the small connecting column to slide is provided on the top of the second circular ring plate; two handle screws are rotatably installed in the side walls of the circular groove, and the ends of the two handle screws close to the center of the circular groove are respectively hinged to the second circular ring plate.

[0015] The beneficial effects of the present invention are as follows: A casting groove milling device provided by the present invention has high processing accuracy and high processing efficiency when milling circular grooves or spiral grooves.

[0016] The worktable can realize the movement in the y direction through the y-direction motion component, the movement in the x direction through the x-direction motion component, and the movement in the z direction through the z-direction motion component. The spindle with adjustable height can further improve the feeding accuracy of the tool assembly, thereby improving the processing accuracy and the accuracy of the device. When milling spiral grooves, the worktable does not need to realize the movement of the XY plane through the cooperation of the y-direction motion component and the x-direction motion component. The worktable is driven to rotate 306° in the XY plane by the rotating component and cooperated with the movement in the x direction by the x-direction motion component. This x-direction motion plus the rotation around the z-axis can make the trajectory more accurate, improve the processing accuracy, and the tool assembly can rotate at high speed, which is more efficient. When milling circular grooves, it is only necessary to rotate the component to drive the worktable to rotate, because the center position of the milling cutter and the circular groove is always fixed, which can avoid the situation where the circular groove is elliptical due to the current processing method, and improve the processing accuracy. In addition, the device can meet the needs of factories to undertake different casting manufacturing, and process various workpieces with high precision requirements and frequent switching of complex trajectories.

[0017] At the same time, the width of the milling cutter of the device can be adjusted, so that when changing the workpiece, the milling cutter does not need to be replaced if it is not damaged, and its width can be directly adjusted. The tool assembly is detachably connected to the spindle, which is very convenient to replace, and the fixed tool assembly enables the tool assembly to work stably. Therefore, it is very convenient to replace the tool assembly, which further improves the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention from another angle; Figure 3 It is a front view of the present invention; Figure 4 It is a left side view of the present invention; Figure 5 It is a schematic diagram of the positional relationship of the bed, the column, the y-axis motion component and the z-axis motion component in the present invention; Figure 6 It is a partial structural schematic diagram of the x-direction motion component in the present invention; Figure 7 It is a partial structural schematic diagram of the rotating assembly in the present invention; Figure 8 It is an assembly diagram of a part of the rotating assembly and a part of the x-direction motion assembly in the present invention; Fig. 9 It is a schematic diagram of the overall structure of the workbench and the ring in the present invention; Fig.10 It is a perspective schematic diagram of the overall structure of the workbench in the present invention; Fig.11 It is an assembly diagram of some workbenches, clamping components and pressing components in the present invention; Fig.12 It is a partial structural schematic diagram of the clamping assembly in the present invention; Fig.13 It is an assembly diagram of some clamping components and pressing components in the present invention; Fig.14 It is a partial structural schematic diagram of the clamping assembly in the present invention; Fig.15 This is a schematic diagram of the overall structure of the middle shell of the present invention; Fig.16 It is another structural schematic diagram of the clamping assembly in the present invention; Fig.17 It is a schematic diagram of the positional relationship of the vertical rod, the fourth lead screw, the sixth motor, the main shaft, etc. in the present invention; Fig.18 It is a perspective schematic diagram of the overall structure of the second cylinder in the present invention; Fig.19 It is a perspective schematic diagram of the overall structure of the third cylinder in the present invention; Fig. 20 It is a partial structural schematic diagram of the main shaft in the present invention; Fig.21 It is a schematic diagram of the overall structure of the tool mounting frame in the present invention; Fig. 22 It is a schematic diagram of the structure of the tool assembly etc. in the present invention; Fig.23 It is a partial structural schematic diagram of the tool assembly in the present invention; Fig.24 It is a schematic diagram of the overall structure of the tool bar holder in the present invention; Fig.25 The assembly diagram of the fixed knife assembly and the knife mounting frame in the present invention is Fig.26 It is a perspective schematic diagram of the overall structure of the fixed blade assembly in the present invention; Fig. 27 It is a partial structural schematic diagram of the fixed blade assembly in the present invention; Fig.28 It is another structural schematic diagram of the fixed blade assembly in the present invention; The names of the components corresponding to the marks in the above drawings are: 101, bed; 102, column; 103, workbench; 1031, frame; 1032, horizontal plate; 104, z-direction motion assembly; 1041, third bracket; 1042, second slide rail; 1043, third lead screw; 1044, fourth motor; 105, second cylinder; 1051, vertical rod; 1052, fourth lead screw; 1053, sixth motor; 2. Y-axis motion assembly; 201. first bracket; 202. first lead screw; 203. first motor; 204. first slide rail; 3. X-axis motion assembly; 301. second bracket; 302. guide rail; 303. second lead screw; 304. second motor; 305. first gear; 306. second gear; 307. third gear; 4. Rotating assembly; 401. First cylinder; 402. Internal gear ring; 403. Third motor; 404. Ring; 405. Central gear; 5. Clamping assembly; 501. Clamping plate; 502. Positive and negative tooth ball screw; 503. Fifth motor; 504. Fourth gear; 505. Fifth gear; 6. Clamping assembly; 601. First rotating shaft; 602. Clamping rod; 603. Second rotating shaft; 604. Third rotating shaft; 605. First tension spring; 606. Second tension spring; 607. Telescopic member; 608. Square shell; 609. L-shaped rod; 7. spindle; 701. third cylinder; 702. tool mounting frame; 703. outer gear ring; 704. seventh motor; 8. tool assembly; 801. eighth motor; 802. tool bar holder; 803. first handle; 804. second handle; 805. blade; 9. Fixed knife assembly; 901. Round groove; 902. First valve plate; 903. Second valve plate; 904. Handle screw. DETAILED DESCRIPTION

[0019] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0020] In the present invention, directional words such as "up", "down", "left", "right", "front", "back", "top", and "bottom" are all used as Figure 3 and Figure 4 The direction defined by the cross-shaped orientation mark is used as the reference. All orientation words in the present invention are described based on this definition, and the orientation they represent does not change with the angle of the figure. A vertical motor means that the output shaft of the motor is perpendicular to the ground, a horizontal motor means that the output shaft of the motor is parallel to the ground, and a horizontal telescopic part means that the telescopic end of the telescopic part is parallel to the ground.

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, a casting slot milling device provided by the present invention comprises a bed 101, a column 102 arranged at the rear side of the bed 101, and a workbench 103 capable of rotating about the z direction; a y-direction motion component 2 whose distance with the column 102 is adjustable is installed on the top of the bed 101, an x-direction motion component 3 whose position in the x-direction direction can be adjusted is installed on the y-direction motion component 2, a rotating component 4 for driving the workbench 103 to rotate is installed on the x-direction motion component 3, and a clamping spacing can be changed on the workbench 103 A clamping component 5 capable of fixing the workpiece from the x-direction is installed on the clamping component 5, and a clamping component 6 capable of fixing the workpiece from the z-direction is installed, and the distance between the clamping component 5 and the top of the workbench 103 is adjustable; a z-direction motion component 104 capable of being adjusted in height is installed on the side of the column 102 close to the bed 101, and a spindle 7 capable of being adjusted in height is installed on the z-direction motion component 104, a tool component 8 capable of adjusting the width of the milling cutter is detachably connected to the spindle 7, and a fixed tool component 9 for fixing the tool component 8 is installed on the spindle 7. The y-direction motion component 2 includes a first bracket 201 capable of sliding in the y-direction and a horizontal first lead screw 202 rotatably installed on the top of the bed 101. The first lead screw 202 passes through the column 102 and extends to the outside of the column 102. A horizontal first motor 203 for driving the first lead screw 202 to rotate is installed on the side of the column 102 away from the bed 101; first slide rails 204 for allowing the first bracket 201 to slide along the y-direction are symmetrically arranged on the left and right sides of the first lead screw 202, and the tops of the two first slide rails 204 are slidably installed together; a first lead screw nut fixedly connected to the bottom of the first bracket 201 is installed on the first lead screw 202. The x-direction motion component 3 includes a second bracket 301 capable of sliding in the x-direction and two guide rails 302 fixedly mounted on the first bracket 201 in the y-direction motion component 2 for the second bracket 301 to slide along the x-direction, the cross section of the guide rail 302 is cross-shaped, each vertical end of the cross is chamfered and a protrusion is arranged along the inclined surface left by the chamfer; horizontal second lead screws 303 are respectively arranged below the two guide rails 302, the axes of the guide rails 302 and the second lead screws 303 located on the same side are located on the same vertical plane, the two second lead screws 303 are rotatably mounted on the first bracket 201 in the y-direction motion component 2, a horizontal second motor 304 for driving the two second lead screws 303 to rotate is fixedly mounted on the second bracket 301, and the output shaft of the second motor 304 is transmission-connected to the two second lead screws 303 through a first gear transmission member; second lead screw nuts are arranged on the two second lead screws 303, and the tops of the two second lead screw nuts are fixedly connected to the bottom of the second bracket 301.The first gear transmission member includes a first gear 305 fixedly mounted on the output shaft of the second motor 304, a second gear 306 fixedly mounted on one end of the second lead screw 303 located at the front side close to the second motor 304, a third gear 307 fixedly mounted on one end of the second lead screw 303 located at the rear side close to the second motor 304, and the first gear 305 is respectively connected to the second gear 306 and the third gear 307 through two transmission gears. The first gear 305, the second gear 306, the third gear 307 and the two transmission gears are all located in the second bracket 301. One transmission gear is meshed with the first gear 305 and the second gear 306, and the other transmission gear is meshed with the first gear 305 and the third gear 307. The z-direction motion component 104 includes a third bracket 1041 capable of sliding in the z-direction, a groove is provided on the side of the column 102 close to the bed 101, four second slide rails 1042 are fixedly installed in the groove for the third bracket 1041 to slide along the z-direction, a vertical third lead screw 1043 is rotatably installed in the groove, a third lead screw nut is provided on the third lead screw 1043, and the lead screw nut is fixedly connected to the third bracket 1041; a vertical fourth motor 1044 is provided on the top of the column 102 for driving the third lead screw 1043 to rotate, and the output shaft of the fourth motor 1044 passes through the top of the column 102 and is transmission-connected to the third lead screw 1043.

[0022] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 As shown, the rotating assembly 4 includes a first cylinder 401 with a single-sided opening and an opening facing upward, which is fixedly mounted on the top of the second bracket 301 in the x-axis motion assembly 3; an inner ring gear 402 is rotatably mounted in the first cylinder 401; a vertical third motor 403 for driving the inner ring gear 402 to rotate is fixedly mounted at the bottom of the second bracket 301 in the x-axis motion assembly 3; the output shaft of the third motor 403 passes through the bottom of the second bracket 301 and the bottom of the first cylinder 401 in sequence and extends into the first cylinder 401; the output shaft of the third motor 403 is transmission-connected to the inner ring gear 402 through a second gear transmission member; a circular ring 404 is fixedly mounted outside the inner ring gear 402; the outer diameter of the circular ring 404 is smaller than the inner diameter of the first cylinder 401 and does not contact the inner wall of the first cylinder 401; the top of the circular ring 404 is fixedly connected to the bottom of the workbench 103. The second gear transmission member includes a central gear 405 fixedly mounted on the top of the output shaft of the third motor 403 . The central gear 405 is connected to the inner gear ring 402 through four transmission gears. Each transmission gear is meshed with the central gear 405 and the inner gear ring 402 .

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 , Fig.14 , Fig.15 , Fig.16As shown, the workbench 103 is a hollow shell composed of a top cover and a trough body, the top cover includes a frame 1031 and a horizontal plate 1032 clamped in the frame 1031; the clamping assembly 5 includes a clamping plate 501 that can slide synchronously toward or away from each other along the x direction on the top of the horizontal plate 1032, the cross section of the clamping plate 501 is L-shaped, and a horizontal positive and negative thread ball screw 502 is rotatably installed at the bottom of the horizontal plate 1032, and the two ends of the positive and negative thread ball screw 502 are respectively provided with a right-handed screw nut and a left-handed screw nut. The left-hand screw nut and the right-hand screw nut are respectively fixedly connected to the bottom of the two clamping plates 501 through at least one connecting block, and the two clamping plates 501 can be synchronously moved toward or away from each other through the rotation of the positive and negative thread ball screw 502. The left and right sides of the horizontal plate 1032 are provided with sliding grooves for at least two connecting blocks to slide along the x direction; a horizontal fifth motor 503 is fixedly installed in the groove body, and the fifth motor 503 is connected to the positive and negative thread ball screw 502 through a third gear transmission member. The third gear transmission member includes a fourth gear 504 fixedly installed on the output shaft of the fifth motor 503 and a fifth gear 505 fixedly installed on one end of the positive and negative thread ball screw 502 close to the fifth motor 503 and meshing with the fourth gear 504. The clamping plate 501 includes a vertical plate and a horizontal plate at the bottom vertically installed on a side of the vertical plate away from the workpiece, the clamping assembly 6 includes a clamping member symmetrically arranged on the left and right, the clamping member includes a clamping rod 602 that is hinged on the top of the vertical plate of the clamping plate 501 through a first rotating shaft 601 and can rotate around the y direction, and a clamping cylinder is vertically fixedly installed on the side of the clamping rod 602 close to the workpiece; the first rotating shaft 601 is perpendicular to the x direction, a horizontal second rotating shaft 603 is arranged on the front side of the first rotating shaft 601, and a horizontal third rotating shaft 604 is arranged on the rear side of the first rotating shaft 601, the second rotating shaft 603 and the third rotating shaft 604 are both parallel to the first rotating shaft 601, the axis of the second rotating shaft 603 and the axis of the first rotating shaft 601 are not on the same straight line, but the axes of the second rotating shaft 603 and the third rotating shaft 604 are on the same straight line; the first The front end of the rotating shaft 601 is transmission-connected to the rear end of the second rotating shaft 603 through the first small connecting rod, and the rear end of the first rotating shaft 601 is transmission-connected to the front end of the third rotating shaft 604 through the second small connecting rod; a first axis parallel to the second rotating shaft 603 is fixedly installed on the front side of the top of the horizontal plate, and a second axis parallel to the third rotating shaft 604 is fixedly installed on the front side of the top of the horizontal plate, the second rotating shaft 603 is connected to the first axis through a first tension spring 605, and the third rotating shaft 604 is connected to the second axis through a second tension spring 606, and the rotation of the clamping rod 602 can be realized by the extension and contraction of the first tension spring 605 and the second tension spring 606. When the first tension spring 605 and the second tension spring 606 are in a naturally extended state, the clamping rod 602 is in an open state; a control member for controlling the extension and contraction of the first tension spring 605 and the second tension spring 606 is provided under the top cover.The control member includes a horizontal telescopic member 607 fixedly mounted on the top of the bottom plate of the trough body, a square shell 608 is fixedly mounted on the top of the telescopic end of the telescopic member 607, an inclined through slot inclined from left to right and from bottom to top is opened between the front side and the rear side of the square shell 608, a horizontally arranged H-shaped frame is slidably mounted in the inclined through slot, the cross section of the horizontal end of the H-shaped frame contacting the inclined through slot is circular, the two vertical ends of the H-shaped frame are respectively located at the front and rear sides of the inclined through slot, and the two vertical ends of the H-shaped frame are away from the square shell 608. L-shaped rods 609 are vertically installed at the left and right ends of one side of 08, and the short section of the L-shaped rod 609 is perpendicular to the vertical end of the H-shaped frame. The front side and rear side of the groove body are respectively provided with first limiting holes for the short sections of the two L-shaped rods 609 to slide up and down, and the front side and rear side of the frame 1031 are respectively provided with second limiting holes for the long sections of the two L-shaped rods 609 to slide up and down, and the top of the long section of the L-shaped rod 609 is installed with a horizontal toggle rod perpendicular to the first rotating shaft 601.

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Fig.17 , Fig.18 , Fig.19 , Fig. 20 , Fig.21 , Fig. 22 , Fig.23 , Fig.24As shown, a second cylinder 105 with a single-side opening and an opening downward is fixedly installed on the third bracket 1041 in the z-axis motion component 104, and the second cylinder 105 is installed through the bottom plate of the third bracket 1041. The cavity of the second cylinder 105 is divided into a first upper cavity and a first lower cavity by a horizontally arranged first partition plate, and the first partition plate is fixedly installed in the cavity of the second cylinder 105. The main shaft 7 that can slide up and down is slidably installed in the first lower cavity; at least one vertical rod 1051 is vertically fixedly installed on the top of the main shaft 7, and the vertical rod The top of 1051 passes through the first partition plate and extends to the first upper cavity. A fourth lead screw 1052 is rotatably installed in the first upper cavity. A sixth motor 1053 is installed on the top of the second cylinder 105 to drive the fourth lead screw 1052 to rotate around the z direction. The output shaft of the sixth motor 1053 passes through the top of the second cylinder 105 and extends to the first upper cavity to be transmission-connected with the top of the fourth lead screw 1052. A fourth lead screw nut is provided on the fourth lead screw 1052, and the fourth lead screw nut is fixedly connected to the vertical rod 1051. The rotation of the fourth lead screw 1052 can realize the up and down sliding of the main shaft 7. The spindle 7 includes a third cylinder 701 with a single-side opening and an opening downward. The cavity of the third cylinder 701 is divided into a second upper cavity and a second lower cavity by a horizontally arranged first circular plate. The first circular plate is fixedly installed in the cavity of the third cylinder 701. A tool mounting frame 702 for detachably connecting the tool assembly 8 is rotatably installed in the center hole of the first circular plate. The tool mounting frame 702 includes a small circular plate and a hollow cylinder with double-side openings vertically installed on the top of the small circular plate. The axis of the hollow cylinder and the center of the center hole of the small circular plate are located on the same vertical line. The hollow cylinder is rotatably installed in the third cylinder 701. In the center hole of a circular ring plate, a groove for placing multiple ball bearings is provided on the side where the center hole of the first circular ring plate contacts the hollow cylinder. The outer diameter of the small circular ring plate is smaller than the inner diameter of the third cylinder 701. The bottom of the hollow cylinder located in the second lower cavity is fixed with an outer gear ring 703. A vertical seventh motor 704 for driving the outer gear ring 703 to rotate around the z direction is provided on the top of the first circular ring plate. The output shaft of the seventh motor 704 passes through the first circular ring plate and extends to the second lower cavity. The top of the output shaft of the seventh motor 704 is fixedly installed with a sixth gear meshing with the outer gear ring 703.A top cover is fixedly installed on the top of the hollow cylinder of the tool mounting frame 702, and a metal conductive ring is arranged on the top of the top cover. A brush head for contacting the metal conductive ring is arranged next to the metal conductive ring, and the end of the brush head away from the metal conductive ring is conductively connected to the lead wire, and a conductive socket for plugging with the vertical eighth motor 801 in the tool assembly 8 is arranged at the bottom of the top cover; the tool assembly 8 includes a tool rod frame 802 fixedly mounted on the eighth motor 801, and the tool rod frame 802 has a third upper cavity and a third lower cavity divided by a second partition plate, and a slider capable of sliding up and down is installed in the third upper cavity, and the output shaft of the eighth motor 801 is fixedly connected to the vertical fifth lead screw, and the slider can be lifted and lowered in the third upper cavity by rotating the output shaft of the eighth motor 801, and the bottom of the slider passes through the second partition plate and extends to the third lower cavity, and an inclined wedge is installed at the bottom of the slider; the tool assembly 8 also includes a first handle 803 and a second handle 804 installed in the third lower cavity, and the first handle 803 and the second handle 804 are both semi- The cylindrical structure can be spliced ​​into a complete cylinder. A plurality of mutually parallel first connecting structures are arranged from top to bottom on the plane bottom of the first handle 803. The first connecting structures include protrusions and grooves arranged from top to bottom. A plurality of second connecting structures matching the shapes, sizes and positions of the plurality of mutually parallel first connecting structures are arranged from top to bottom on the plane bottom of the second handle 804. The second connecting structures include grooves and protrusions arranged from top to bottom. The cross-sections of the protrusions and grooves of the first connecting structure and the second connecting structure are both dovetail-shaped structures. A driving block that can slide toward each other synchronously on the horizontal plane as the inclined wedge rises and slides away from each other synchronously on the horizontal plane as the inclined wedge descends is installed on the top of the second handle 804. The side of the driving block away from the inclined wedge is connected to the inner wall of the knife bar holder 802 through a reset spring. When the reset spring is in a naturally extended state, the axes of the first handle 803 and the second handle 804 coincide. Blades 805 are fixedly installed on the lower sides of the plane bottoms of the first handle 803 and the second handle 804 respectively.

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Fig.25 , Fig.26 , Fig. 27 , Fig.28 As shown, the fixed knife assembly 9 includes a circular groove 901 fixedly mounted on the bottom of a small circular ring plate of the main shaft 7, a tool passing hole for the tool assembly 8 to pass through is provided at the bottom of the circular groove 901, and a valve capable of opening and closing for fixing the tool assembly 8 is provided in the tool passing hole; the valve includes a first valve plate 902 and a second valve plate 903 capable of sliding in the tool passing hole along the radial direction of the tool passing hole; A second circular ring plate is fixedly installed on the top of the bottom of the circular groove 901, and small connecting columns are vertically fixedly installed on the top of the first valve plate 902 and the second valve plate 903. The small connecting columns pass through the top of the bottom of the groove and extend into the circular groove 901. A sliding bar hole for the small connecting column to slide is opened on the top of the second circular ring plate; two handle screws 904 are rotatably installed in the side walls of the circular groove 901, and the ends of the two handle screws 904 close to the center of the circular groove 901 are respectively hinged to the second circular ring plate, and the second circular ring plate can be driven to rotate by turning the handle screws 904, thereby driving the first valve plate 902 and the second valve plate 903 to slide.

[0026] The working principle of the present invention is as follows: put the workpiece on the workbench 103. If the workpiece is a casting with a rectangular structure such as a slider, a beam, a base, a bearing seat, etc., it can be clamped directly with the clamping assembly 5. If the workpiece is a casting with a round shape such as a brake disc, a motor base, a fixed disc, a rotor, a grinding disc, etc., a splicing mold (the splicing mold is as shown in FIG. 1 ) is placed on the workbench first. Fig.11 As shown in the figure, the shape is rectangular, with a clamping circular hole in the middle for clamping a circular workpiece), and the splicing mold is clamped by a clamping component 5.

[0027] Initially, the clamping assembly 5 is in an open state. The method of use is to start the fifth motor 503. The fifth motor 503 drives the forward and reverse ball screw 502 to rotate through the third gear transmission member. The right-handed screw nut and the left-handed screw nut move toward each other synchronously, driving the two clamping plates 501 to move toward each other synchronously, thereby clamping the workpiece or splicing mold. If the workpiece is of a shape that is inconvenient to clamp, the clamping assembly 6 is used for clamping. Initially, the clamping assembly 6 is in an open state, and the telescopic member 607 needs to be started. The telescopic end of the telescopic member 607 extends, driving the square shell 608 to slide to the left, thereby causing the L-shaped rod 609 to slide upward, so that the toggle rod drives the second rotating shaft 603 and the third rotating shaft 604 upward. The second rotating shaft 603 and the third rotating shaft 604 will rotate while moving upward, and the first tension spring 605 and the second tension spring 606 will be stretched, driving the first rotating shaft 601 to rotate, thereby causing the clamping rod 602 to rotate, so that the bottom of the clamping cylinder abuts against the top of the workpiece, thereby clamping the workpiece.

[0028] After the workpiece is fixed, the first bracket 201 of the y-direction motion assembly 2 is usually located at the front end of the first slide rail 204, and the first motor 203 is started to drive the first lead screw 202 to rotate, and the first bracket 201 moves backward on the first slide rail 204, and stays at the expected y-direction position after moving to the expected y-direction position. Then the second motor 304 is started to drive the second lead screw 303 to rotate, so that the second bracket 301 slides along the x-direction on the guide rail to reach the expected x-direction position.

[0029] Initially, the width of the milling cutter is the minimum value, that is, when the first handle 803 and the second handle 804 are plugged together, the outer shape is a cylindrical shape, and the eighth motor 801 is started, driving the slider to descend in the third upper cavity, the inclined wedge moves downward, and the driving block moves synchronously backward with the downward movement of the inclined wedge, and the reset springs are compressed, so that the two blades 805 move synchronously backward, and the width of the milling cutter increases. When the expected milling cutter width is reached, it stays at this position. Initially, the third bracket 1041 is at the uppermost end of the second slide rail 1042, and the fourth motor 1044 is started to drive the third lead screw 1043 to rotate, so that the third bracket 1041 slides downward on the second slide rail 1042, and the third bracket 1041 drives the tool assembly 8 to move downward through the second cylinder 105, so that the blade 805 is close to the expected position. At this time, the spindle 7 is at the uppermost end of the first lower cavity, and the sixth motor 1053 is started to drive the fourth lead screw 1052 to rotate, driving the two vertical rods 1051 to move downward, so that the spindle 7 moves downward and reaches the expected z-direction position with extremely high precision.

[0030] At this time, all debugging is completed, and the seventh motor 704 is started to drive the outer gear ring 703 to rotate, thereby driving the tool assembly 8 to rotate through the tool mounting bracket 702, so that the blade 805 starts to work. If the spiral groove is milled, the position of the workbench in the y direction is always fixed, but the x direction needs to move to the left and the workbench 103 needs to be driven by the rotating component 4 to rotate, so that the spiral groove milled out has better accuracy and less wear on the machine tool; if the circular groove is milled, the position in the x direction is also fixed, and the rotating component 4 drives the workbench 103 to rotate to mill the circular groove, so that the position between the tool assembly and the center of the circular groove is always fixed, avoiding the current situation that the circular groove is elliptical. The third motor 403 needs to be started for the rotating component 4 to rotate, and the third motor 403 drives the central gear 405 to rotate, thereby rotating the inner gear ring 402, and finally rotating the workbench 103.

Claims

1. A casting slot milling device, characterized in that: It comprises a bed (101), a column (102) arranged at the rear side of the bed (101), and a workbench (103) capable of rotating about a z-direction; The top of the bed (101) is provided with a y-direction motion component (2) whose distance from the column (102) is adjustable; the y-direction motion component (2) is provided with an x-direction motion component (3) whose position in the x-direction is adjustable; the x-direction motion component (3) is provided with a rotation component (4) for driving the workbench (103) to rotate; the workbench (103) is provided with a clamping component (5) whose clamping distance can be changed and which can fix the workpiece from the x-direction; and the clamping component (5) is provided with a clamping component (6) whose distance from the top of the workbench (103) is adjustable and which can fix the workpiece from the z-direction; A z-direction motion component (104) whose height can be adjusted is installed on a surface of the column (102) close to the bed (101); a spindle (7) whose height can be adjusted is installed on the z-direction motion component (104); a tool component (8) whose milling cutter width can be adjusted is detachably connected to the spindle (7); and a fixed tool component (9) for fixing the tool component (8) is installed on the spindle (7).

2. A casting slot milling device according to claim 1, characterized in that: The rotating assembly (4) comprises a first cylinder (401) fixedly mounted on the x-direction motion assembly (3) and having a single-side opening with the opening facing upwards; an inner gear ring (402) is rotatably mounted in the first cylinder (401); a vertical third motor (403) is fixedly mounted on the x-direction motion assembly (3) for driving the inner gear ring (402) to rotate; an output shaft of the third motor (403) is transmission-connected to the inner gear ring (402) via a second gear transmission member; and a circular ring (404) is fixedly mounted outside the inner gear ring (402); the circular ring (404) is fixedly connected to the workbench (103).

3. A casting slot milling device according to claim 1, characterized in that: The workbench (103) is a hollow shell composed of a top cover and a trough body, wherein the top cover comprises a frame (1031) and a horizontal plate (1032) clamped in the frame (1031); The clamping assembly (5) comprises a clamping plate (501) capable of synchronously sliding toward or away from each other along the x-direction on the top of the horizontal plate (1032); a horizontal positive and negative thread ball screw (502) is rotatably mounted on the bottom of the horizontal plate (1032); a right-hand screw nut and a left-hand screw nut are respectively arranged at both ends of the positive and negative thread ball screw (502); the left-hand screw nut and the right-hand screw nut are respectively fixedly connected to the two clamping plates (501) via at least one connecting block; the two clamping plates (501) can be synchronously moved toward or away from each other by the rotation of the positive and negative thread ball screw (502); and a slide groove for at least two connecting blocks to slide along the x-direction is provided on both left and right sides of the horizontal plate (1032); A horizontal fifth motor (503) is fixedly installed in the tank body, and the fifth motor (503) is transmission-connected to the forward and reverse tooth ball screw (502) via a third gear transmission member.

4. A casting slot milling device according to claim 3, characterized in that: The clamping plate (501) comprises a vertical plate and a horizontal plate at the bottom of the vertical plate which is vertically mounted on a side of the vertical plate away from the workpiece. The clamping assembly (6) comprises a clamping member which is symmetrically arranged on the left and right sides. The clamping member comprises a clamping rod (602) which is hinged to the top of the vertical plate of the clamping plate (501) through a first rotating shaft (601) and can rotate around the y direction. A clamping cylinder is vertically fixedly mounted on a side of the clamping rod (602) close to the workpiece. A horizontal second rotating shaft (603) is arranged on the front side of the first rotating shaft (601), and a horizontal third rotating shaft (604) is arranged on the rear side of the first rotating shaft (601). Both the second rotating shaft (603) and the third rotating shaft (604) are parallel to the first rotating shaft (601). The front end of the first rotating shaft (601) is transmission-connected to the rear end of the second rotating shaft (603) through a first small connecting rod, and the rear end of the first rotating shaft (601) is transmission-connected to the front end of the third rotating shaft (604) through a second small connecting rod. A first axis parallel to the second rotating axis (603) is fixedly installed on the front side of the top of the horizontal plate, and a second axis parallel to the third rotating axis (604) is fixedly installed on the front side of the top of the horizontal plate. The second rotating axis (603) is connected to the first axis via a first tension spring (605), and the third rotating axis (604) is connected to the second axis via a second tension spring (606). The rotation of the clamping rod (602) can be achieved by the extension and retraction of the first tension spring (605) and the second tension spring (606); a control component for controlling the extension and retraction of the first tension spring (605) and the second tension spring (606) is provided below the top cover.

5. A casting slot milling device according to claim 4, characterized in that: The control member comprises a horizontal telescopic member (607) fixedly mounted on the top of the bottom plate of the trough body, a square shell (608) is fixedly mounted on the top of the telescopic end of the telescopic member (607), an inclined through slot inclined from left to right and from bottom to top is provided between the front side and the rear side of the square shell (608), a horizontally arranged H-shaped frame is slidably mounted in the inclined through slot, two vertical ends of the H-shaped frame are respectively located at the front and rear sides of the inclined through slot, and the left and right ends of the two vertical ends of the H-shaped frame away from one side of the square shell (608) are respectively An L-shaped rod (609) is vertically installed, and the short section of the L-shaped rod (609) is perpendicular to the vertical end of the H-shaped frame. The front side and rear side of the trough body are respectively provided with first limit holes for the short sections of the two L-shaped rods (609) to slide up and down, and the front side and rear side of the frame (1031) are respectively provided with second limit holes for the long sections of the two L-shaped rods (609) to slide up and down, and the top of the long section of the L-shaped rod (609) is installed with a horizontal toggle rod perpendicular to the first rotating shaft (601).

6. A casting slot milling device according to any one of claims 1 to 5, characterized in that: A second cylinder (105) with a single-side opening and the opening facing downward is fixedly mounted on the z-direction motion component (104); the cavity of the second cylinder (105) is divided into a first upper cavity and a first lower cavity by a first partition plate arranged horizontally; and a main shaft (7) capable of sliding up and down is slidably mounted in the first lower cavity; At least one vertical rod (1051) is vertically fixedly installed on the top of the main shaft (7); the top of the vertical rod (1051) passes through the first partition plate and extends into the first upper cavity; a fourth vertical lead screw (1052) is rotatably installed in the first upper cavity; a sixth vertical motor (1053) for driving the fourth lead screw (1052) to rotate around the z-direction is installed on the top of the second cylinder (105); a fourth lead screw nut is provided on the fourth lead screw (1052); and the fourth lead screw nut is fixedly connected to the vertical rod (1051).

7. A casting slot milling device according to any one of claims 1 to 5, characterized in that: The spindle (7) comprises a third cylinder (701) with a single-side opening and the opening facing downward. The cavity of the third cylinder (701) is divided into a second upper cavity and a second lower cavity by a first circular plate arranged horizontally. A tool mounting frame (702) for detachably connecting a tool assembly (8) is rotatably mounted in the center hole of the first circular plate. The tool mounting frame (702) comprises a small circular plate and a double-sided open hollow cylinder vertically mounted on the top of the small circular plate. The outer diameter of the small circular plate is smaller than the inner diameter of the third cylinder (701). An outer gear ring (703) is fixedly sleeved on the bottom of the hollow cylinder. A vertical seventh motor (704) for driving the outer gear ring (703) to rotate around the z-direction is arranged on the top of the first circular plate. The output shaft of the seventh motor (704) passes through the first circular plate and extends into the second lower cavity. A sixth gear meshing with the outer gear ring (703) is fixedly mounted on the top of the output shaft of the seventh motor (704).

8. A casting slot milling device according to claim 7, characterized in that: A top cover is fixedly mounted on the top of the tool mounting frame (702), a metal conductive ring is arranged on the top of the top cover, a brush head for contacting the metal conductive ring is arranged next to the metal conductive ring, and a conductive socket for plugging into a vertical eighth motor (801) in the tool assembly (8) is arranged at the bottom of the top cover; The tool assembly (8) comprises a tool rod frame (802) fixedly mounted on an eighth motor (801); the tool rod frame (802) comprises a third upper cavity and a third lower cavity divided into upper and lower cavities by a second partition plate; a slider capable of sliding up and down is mounted in the third upper cavity; the output shaft of the eighth motor (801) is fixedly connected to a vertical fifth lead screw; the slider can be raised and lowered in the third upper cavity by rotating the output shaft of the eighth motor (801); the bottom of the slider passes through the second partition plate and extends into the third lower cavity; an inclined wedge is mounted on the bottom of the slider; The tool assembly (8) further comprises a first handle (803) and a second handle (804) mounted in the third lower cavity, the first handle (803) and the second handle (804) both being semi-cylindrical structures and capable of being spliced ​​into a complete cylinder, a plurality of mutually parallel first connection structures being arranged from top to bottom on the plane bottom of the first handle (803), a plurality of second connection structures matching the shapes, sizes and positions of the plurality of mutually parallel first connection structures being arranged from top to bottom on the plane bottom of the second handle (804), a driving block being capable of synchronously sliding towards each other on a horizontal plane as the inclined wedge rises and synchronously sliding away from each other on the horizontal plane as the inclined wedge descends is mounted on the top of the second handle (804), a side of the driving block away from the inclined wedge being connected to the inner wall of the tool bar holder (802) via a reset spring; blades (805) are respectively fixedly mounted on the lower sides of the plane bottoms of the first handle (803) and the second handle (804).

9. A casting slot milling device according to any one of claims 1 to 5, characterized in that: The fixed knife assembly (9) comprises a circular groove (901) fixedly mounted on the main shaft (7); a tool passage hole for the tool assembly (8) to pass through is provided at the bottom of the circular groove (901); a valve capable of being opened and closed and used to fix the tool assembly (8) is provided in the tool passage hole; the valve comprises a first valve plate (902) and a second valve plate (903) capable of sliding in the tool passage hole along the radial direction of the tool passage hole; A second circular ring plate is fixedly installed on the top of the bottom of the circular groove (901); small connecting columns are vertically fixedly installed on the top of the first valve plate (902) and the second valve plate (903); the small connecting columns penetrate the top of the bottom of the groove and extend into the circular groove (901); a sliding bar hole for the small connecting column to slide is opened on the top of the second circular ring plate; two handle screws (904) are rotatably installed in the side walls of the circular groove (901), and one end of the two handle screws (904) close to the center of the circular groove (901) is hinged to the second circular ring plate.

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