A special CNC cutting machine for aluminum billet pouring and riser in electric baking pan

Abstract

The invention discloses a special CNC cutting machine tool for pouring and rising mouths of aluminum billets in an electric baking pan, comprising a metal fine-tuning bracket, a welding bracket arranged on the metal fine-tuning bracket, a positioning and clamping assembly arranged on the welding bracket, and a three-axis cutting device arranged on the welding bracket; the special CNC cutting machine tool for pouring and rising mouths of aluminum billets in an electric baking pan of the invention is a brand-new design, with a compact structure and high operating precision; a pneumatic foot switch can clamp the workpiece, visually and manually complete the zero-point tool alignment of the workpiece quickly, and one-button start completes the pouring and rising mouth cutting, the operation is simple and convenient, the skill requirements for the operator are low, and the labor intensity is greatly reduced. The processing of a single aluminum billet takes 3 minutes, and the efficiency is extremely high. The special control program optimizes the cutting parameters and paths to the maximum extent, the performance is stable, the pouring and rising mouths cut are complete, and are convenient to collect and recycle for recasting, thus reducing the product cost and having good economic and social benefits.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical processing equipment, and in particular relates to a special CNC cutting machine tool for pouring risers of aluminum billets in electric baking pans, the working content of which is to cut off the risers of electric baking pan blanks. Background Art

[0002] Under the existing technical conditions, the processing of casting risers includes high-frequency impact, laser cutting, turning, band saw cutting and circular saw cutting, etc. However, these methods are only suitable for casting blanks with protruding risers and large processing space.

[0003] The aluminum blank of the electric baking pan is a disc-shaped rotating body structure with a small thickness and difficult to clamp; there are flanges around it, and the pouring riser is located in the center of the rotating body and is relatively concave. The removal of the pouring riser requires the operation to be carried out along the working surface of the pan as much as possible, and the maximum height difference is not greater than 1mm. Under this standard, impact cutting, laser cutting, band saw cutting and other methods cannot be achieved, and conventional circular saws are also unable to achieve it due to the limitations of their tool installation form. Turning is the only feasible processing method at present, but the current turning processing has the following problems. First, due to the small thickness of the aluminum blank of the electric baking pan, the position for the chuck clamping on the lathe has a casting chamfer (step), so clamping is very difficult, and it is easy for the workpiece to fly out during processing, causing danger; secondly, the lathe has limited cutting, and a pouring riser requires 3-5 cuts for processing, which is inefficient. Thirdly, the pouring riser after turning is completely turned into aluminum chips, mixed with cutting fluid, and attached to the machine tool, which is difficult to clean and recycle, and the quality of recasting is greatly reduced, resulting in waste of resources and increased manufacturing costs. Summary of the invention

[0004] The object of the present invention is to provide a special CNC cutting machine for aluminum billet pouring and riser of electric baking pan to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: The present invention discloses a special CNC cutting machine tool for pouring and rising heads of aluminum billets in an electric baking pan, comprising a metal fine-tuning bracket, a welding bracket arranged on the metal fine-tuning bracket, a positioning and clamping assembly arranged on the welding bracket, and a three-axis cutting device arranged on the welding bracket; the positioning and clamping assembly comprises a three-dimensional triangular bracket, an upper reference support plate arranged at the upper end of the three-dimensional triangular bracket, an upper clamping cylinder arranged at the upper end of the three-dimensional triangular bracket through an upper clamping cylinder mounting plate, an upper clamping block arranged on the upper clamping cylinder, a lower pressing plate and a lower positioning support plate arranged at the lower end of the three-dimensional triangular bracket, a lower cylinder pull plate is provided at the lower end of the three-dimensional triangular bracket, a lower pressing cylinder pull plate is provided on the lower cylinder pull plate, and the lower pressing cylinder is connected to the lower positioning support plate through a lower pressing cylinder seat, the lower end of the electric baking pan blank is placed between the lower pressing plate and the lower positioning support plate, and the upper end of the electric baking pan blank is restricted between the upper reference support plate and the upper clamping block.

[0006] Furthermore, the three-axis cutting device includes an X-axis slide rail, an X-axis slider matched with the X-axis slide rail, an X-axis slider arranged on the X-axis slider, a Y-axis slider arranged on the X-axis slider, a Y-axis slide rail matched with the Y-axis slider, a Z-axis slide rail, and a Z-axis slider matched with the Z-axis slide rail. The lower end of the Y-axis frame is connected to the Y-axis slide rail, and one side is connected to the Z-axis slider. A Z-axis slide rail is provided on one side of the Z-axis slide rail. A cutting motor is provided on the Z-axis slide rail. A cutting disc is provided on the cutting motor. A cutting disc is provided on the main shaft of the cutting motor through a shaft sleeve. The cutting disc is connected to the shaft sleeve of the cutting motor through a countersunk bolt or a countersunk screw. A positioning cutting disc is provided on the shaft sleeve. The shoulder of the cutting disc is in close contact with the aluminum billet surface of the electric baking pan when working. There is a thread in the middle of the shoulder, and a tool cup is installed externally through bolts or screws. The tool cup is truncated cone-shaped with a hole at the bottom. The tool cup can be fixed to the shoulder by bolts or screws. The plane of the cutting disc is in close contact with the aluminum billet surface of the electric baking pan when working, which ensures the flushness of the cut plane and the original aluminum billet surface of the electric baking pan to the greatest extent, providing convenience for subsequent processing. There is a thread in the middle of the shoulder, and a tool cup is installed externally through bolts or screws. When aligning the tool, manually move the cutter disc to put the tool cup on the riser. At this time, the center of the riser is coaxial with the center of the tool cup.

[0007] Furthermore, the reciprocating linear motion is realized between the X-axis slide rail and the X-axis slider, which can be realized by but not limited to the following methods: servo motor drives the lead screw, gear rack transmission, sprocket chain transmission, cylinder transmission, and oil cylinder transmission.

[0008] Furthermore, a plurality of steps are provided on the back of the electric baking pan blank, and a riser to be cut is provided in the front disk body, the upper reference plate is fitted with the vertical surface of the steps, and the lower positioning plate is provided with a shape matching the steps. The cooperation between the lower positioning plate and the lower end of the electric baking pan blank is similar to the cooperation between the mold and the workpiece, thereby realizing precise positioning of the electric baking pan blank.

[0009] Furthermore, the contact point between the upper clamping block and the electric baking pan blank is an arc-shaped inclined plane, which effectively achieves a close fit on the electric baking pan blank, and applies forces in the X and Z directions to the electric baking pan blank under the action of the upper clamping cylinder.

[0010] Furthermore, a plurality of guide shafts are provided between the lower cylinder pull plate and the lower positioning support plate to play a supporting and guiding role, thereby achieving uniform and stable movement of the lower pressure plate.

[0011] Furthermore, a push-pull shield is provided on the outer side of the three-dimensional triangular bracket through a cylinder, which isolates the operator and the cutting saw blade during cutting, blocks chips and coolant, and plays a safety protection role.

[0012] Working principle description of positioning principle and method: The equipment of the present invention relies on the upper reference plate, upper clamping block, lower pressure plate and lower positioning plate to achieve precise positioning of the electric baking pan blank. The upper reference plate and the lower positioning plate achieve precise limitation of the left and right directions of the electric baking pan blank. The lower pressure plate is provided with a shape matching the outer side of the electric baking pan blank, that is, a multi-step structure, which plays a role in lifting and limiting the front and rear directions of the electric baking pan blank. Under the action of the lower clamping cylinder, the electric baking pan blank is subjected to the rightward force of the lower clamping cylinder, and the force applied to the electric baking pan blank by the arc-shaped inclined plane of the upper clamping block echoes the rightward force of the lower clamping cylinder and the multi-step structure. The lifting force of the electric baking pan blank, first of all, the curved surface is to echo the curved outer edge of the electric baking pan blank, and the inclined surface is to convert and transmit the downward pressure force, decomposing it into downward pressure and extrusion force to the left. The extrusion force to the left and the force to the right of the lower clamping cylinder work together to achieve precise positioning of the electric baking pan blank in the X-axis. The downward pressure and the multi-step structure work together to lift the electric baking pan blank to achieve precise positioning of the electric baking pan blank in the Z-axis direction; in addition, the curved surface and the multi-step structure can achieve precise positioning of the electric baking pan blank in the Y-axis direction. This is the principle of precise positioning of the electric baking pan blank by the positioning clamping assembly.

[0013] The working principle of the three-axis cutting device is as follows: the X-axis slide plate is driven by the ball screw to realize controllable movement in the X-axis direction along the X-axis slide rail; the Y-axis frame is integrated into the X-axis slide plate through the Y-axis slider and the Y-axis slide rail; similarly, driven by the ball screw, controllable movement in the Y-axis direction along the Y-axis slide rail is realized; the superposition of the above two realizes controllable movement in the plane formed by the X and Y axes; the Z-axis slide plate is similarly integrated into the Y-axis frame through the Z-axis slide rail and the Z-axis slider; therefore, the cutting disc connected to the cutting motor realizes controllable and precise positioning movement in the X, Y, and Z spaces, and completes the cutting movement according to the set motion trajectory.

[0014] Explanation of tool setting principle: When setting the tool, manually move the tool disc to put the tool setting cup on the riser. At this time, the center of the riser is coaxial with the center of the tool setting cup. The horizontal U-shaped walking path is programmed in advance. The center position of the U-shaped semicircular arc is the center of the riser and is set as the reference point. Therefore, you only need to buckle the tool setting cup on the riser, find the reference point, and complete the processing with one click according to the programmed path, which greatly improves the tool setting efficiency and processing efficiency. The tool setting device is simple and can be completed visually; the card slot positioning device does not need to be aligned; one-button start and stop, the operator does not need to touch the program level, and can be used by anyone with experience in multi-control operation.

[0015] The three-dimensional precise positioning and clamping of the positioning and clamping components plus the three-dimensional controllable precise positioning and movement of the cutting disc realize the precise cutting of the riser of the electric baking pan blank.

[0016] Compared with the prior art, the advantages and positive effects of the present invention are as follows: first, the spindle motor is installed on the Z-axis slide of the CNC machine head, the cutting disc is installed on the cutting motor, the XYZ three-axis CNC machine head is driven by a servo motor and a ball screw, and the operating parameters are set by a dedicated control system, so that the cutting disc can be accurately moved along the programmed path; second, the base of the lower pressure plate is a special mold customized according to the shape of the aluminum billet of the electric baking pan, which is installed on one side of the CNC machine head; the clamping assembly adopts a pneumatic clamping method, which consists of a side clamping part and an upper clamping part, and is installed on the positioning assembly, so that accurate positioning and stable clamping are achieved; third, the cooling and lubrication system adopts pneumatic kerosene cooling, the flow regulator is installed next to the spindle motor, and the cooling nozzle is installed at the cutting saw blade. The cooling takes away the residual heat from the processing, and the equipment is safer and more reliable; Fourth, the machine tool protection is divided into two parts: the machine head protection cover and the operating protection cover. The machine head protection cover is installed on the XYZ three-axis CNC machine head to protect the servo motor, ball screw and other transmission components. The operating protection cover is installed on the front side of the machine head. It is a push-pull structure. It isolates the operator and the cutting saw blade during cutting, blocks chips and coolant, and plays a safety protection role; Fifth, the special control system is customized for the processing of electric baking pan aluminum billets, compatible with the general G code program of CNC machine tools, and at the same time expands the specific tool trajectory and tool lifting restrictions; In summary, the electric baking pan aluminum billet pouring riser special CNC cutting machine tool of the present invention is a brand-new design with compact structure and high operating precision. A pneumatic foot switch can be used to clamp the workpiece, and the workpiece zero-point tool setting can be completed quickly and visually manually. The pouring and riser cutting can be completed with one-button start. The operation is simple and convenient, and the operator's skill requirements are low. At the same time, the labor intensity is greatly reduced. The processing of a single aluminum billet takes 3 minutes, and the efficiency is extremely high. The dedicated control program optimizes the cutting parameters and paths to the maximum extent, and the performance is stable. The pouring and riser cut off is complete, which is convenient for collection and recycling for recasting, reducing product costs and having good economic and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a schematic diagram of the overall structure of a special CNC cutting machine tool for pouring and rising heads of aluminum billets in an electric baking pan.

[0018] Figure 2 This is a first-view structural schematic diagram of a special CNC cutting machine tool for pouring and rising heads of aluminum billets in an electric baking pan according to the present invention.

[0019] Figure 3 It is a structural schematic diagram of the three-axis cutting device of the present invention.

[0020] Figure 4 This is a schematic structural diagram of a positioning and clamping assembly of a special CNC cutting machine for pouring and rising heads of aluminum billets in an electric baking pan according to the present invention.

[0021] Figure 5 This is a second-view structural schematic diagram of a special CNC cutting machine tool for pouring and rising heads of aluminum billets in an electric baking pan according to the present invention.

[0022] Figure 6 This is a third-view structural schematic diagram of a special CNC cutting machine tool for pouring and rising heads of aluminum billets in an electric baking pan according to the present invention.

[0023] Figure 7 This is a schematic structural diagram of the electric baking pan blank from the first perspective of the present invention.

[0024] Figure 8 This is a schematic structural diagram of the electric baking pan blank from the second viewing angle of the present invention.

[0025] Fig. 9 This is an enlarged structural diagram of the cutting disc.

[0026] In the figure: 1. Metal fine-tuning bracket, 2. Welding bracket, 3. Positioning clamping assembly, 31. Three-dimensional triangular bracket, 32. Upper reference support plate, 33. Upper clamping cylinder mounting plate, 34. Upper clamping cylinder, 35. Upper clamping block, 35A. Arc-shaped inclined plane, 36. Lower pressure plate, 37. Lower positioning support plate, 38. Lower cylinder pull plate, 39. Lower clamping cylinder, 310. Lower clamping cylinder seat, 4. Three-axis cutting device, 41. X-axis slide rail, 42. X-axis slider, 43. X-axis slide plate, 44. Y-axis slider, 45. Y-axis slide rail, 46. Z-axis slide rail, 47. Z-axis slider, 48, Z-axis slide plate, 49, cutting motor, 410. Cutting knife disc, 5. Electric baking pan blank, 51. Step, 52. Riser, 6. Guide shaft, 7. Push-pull guard, 8. Y-axis frame, 9. Tool setting cup. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0028] See also Figures 1 to 9The present invention provides a technical solution: a CNC cutting machine tool for aluminum billet pouring and riser of an electric baking pan, a metal fine-tuning bracket 1, a welding bracket 2 arranged on the metal fine-tuning bracket 1, a positioning clamping assembly 3 arranged on the welding bracket 2, and a three-axis cutting device 4 arranged on the welding bracket 2; the positioning clamping assembly 3 includes a three-dimensional triangular bracket 31, an upper reference support plate 32 arranged at the upper end of the three-dimensional triangular bracket 31, an upper pressing cylinder 34 arranged at the upper end of the three-dimensional triangular bracket 31 through an upper pressing cylinder mounting plate 33, an upper pressing block 35 arranged on the upper pressing cylinder 34, a lower pressing plate 36 arranged at the lower end of the three-dimensional triangular bracket 31, and a lower positioning support plate 32 arranged at the upper end of the three-dimensional triangular bracket 31. Plate 37, a lower cylinder pull plate 38 is provided at the lower end of the three-dimensional triangular bracket 31, a lower clamping cylinder 39 is provided on the lower cylinder pull plate 38, and the lower clamping cylinder 39 is connected to the lower positioning plate 37 through the lower clamping cylinder seat 310. The lower end of the electric baking pan blank 5 is placed between the lower pressing plate 36 and the lower positioning plate 37, and the upper end of the electric baking pan blank 5 is restricted between the upper reference plate 32 and the upper clamping block 35; the three-axis cutting device 4 includes an X-axis slide rail 41, an X-axis slider 42 matched with the X-axis slide rail 41, an X-axis slider 43 arranged on the X-axis slider 42, a Y-axis slider 44 arranged on the X-axis slider 43, and a Y-axis slide rail matched with the Y-axis slider 44 45, Z-axis slide rail 46, Z-axis slider 47 matched with Z-axis slide rail 46, the lower end of Y-axis frame 8 is connected to Y-axis slide rail 45, one side is connected to Z-axis slider 47, one side of Z-axis slide rail 46 is provided with Z-axis slide plate 48, Z-axis slide plate 48 is provided with cutting motor 49, cutting motor 49 is provided with cutting disc 410, cutting motor 49 is provided with cutting disc 410 on main shaft of cutting motor 49 through shaft sleeve, cutting disc 410 is connected with shaft sleeve of cutting motor 49 through countersunk bolt or countersunk screw, shaft sleeve is provided with shaft shoulder for positioning cutting disc 410, when working, plane of cutting disc 410 can be in close contact with aluminum billet surface of electric baking pan, middle part of shaft shoulder is provided with thread, An external tool setting cup 9 is provided by bolts or screws; the X-axis slide rail 41 and the X-axis slider 42 cooperate for movement through a servo motor and a lead screw transmission assembly; a plurality of steps 51 are provided on the back of the electric baking pan blank 5, and a riser 52 to be cut is provided in the front disk body, the upper reference support plate 32 is in contact with the vertical surface of the step 51, and the lower positioning support plate 37 is provided with a shape matching the step 51; the contact point between the upper clamping block 35 and the electric baking pan blank 5 is an arc-shaped inclined plane 35A; a plurality of guide shafts 6 are provided between the lower cylinder pull plate 38 and the lower positioning support plate 37; a push-pull shield 7 is provided on the outside of the three-dimensional triangular bracket 31 through a cylinder.

[0029] Working principle description of positioning principle and method: the equipment of the present invention relies on the upper reference plate 32, the upper clamping block, the lower pressure plate 36, and the lower positioning plate 37 to achieve accurate positioning of the electric baking pan blank 5. The upper reference plate 32 and the lower positioning plate 37 achieve accurate limitation of the left and right directions of the electric baking pan blank 5. The lower pressure plate 36 is provided with a shape matching the outer side of the electric baking pan blank 5, that is, a multi-step structure, which plays a role in lifting and limiting the front and rear directions of the electric baking pan blank 5. Under the action of the lower clamping cylinder 39, the electric baking pan blank 5 is subjected to the rightward force of the lower clamping cylinder 39, and the arc-shaped inclined plane 35A of the upper clamping block 35 applies a force to the electric baking pan blank 5 in response to the rightward action of the lower clamping cylinder 39. Use force and multi-step structure to lift the electric baking pan blank 5. First, the arc surface is to echo the arc outer edge of the electric baking pan blank 5. The inclined surface is to convert and transmit the downward pressure force, decomposing it into downward pressure and left extrusion force. The left extrusion force and the right force of the lower clamping cylinder 39 work together to achieve precise X-axis positioning of the electric baking pan blank 5. The downward pressure and the multi-step structure work together to lift the electric baking pan blank 5, and achieve precise positioning of the electric baking pan blank 5 in the Z-axis direction. In addition, the arc surface and the multi-step structure can achieve precise positioning of the electric baking pan blank 5 in the Y-axis direction. This is the principle of precise positioning of the electric baking pan blank 5 by the positioning and clamping assembly 3.

[0030] The working principle of the three-axis cutting device 4 is explained as follows: the X-axis skateboard 43 is driven by the ball screw to achieve controllable movement along the X-axis slide rail in the X-axis direction; the Y-axis frame 8 is integrated into the X-axis skateboard 43 through the Y-axis slider 44 and the Y-axis slide rail 45; similarly, driven by the ball screw, controllable movement along the Y-axis slide rail in the Y-axis direction is achieved; the superposition of the above two realizes controllable movement within the plane formed by the X and Y axes; the Z-axis skateboard is similarly integrated into the Y-axis frame 8 through the Z-axis slide rail 46 and the Z-axis slider 47; therefore, the cutting disc 410 connected to the cutting motor 49 realizes controllable and precise positioning movement in the X, Y, and Z spaces, and completes the cutting movement according to the set motion trajectory.

[0031] The three-dimensional precise positioning and clamping of the positioning and clamping assembly 3 and the three-dimensional controllable precise positioning and movement of the cutting blade 410 achieve precise and high-precision cutting of the riser 52 of the electric baking pan blank 5.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A special CNC cutting machine for aluminum billet pouring and riser of electric baking pan, characterized in that include: A metal fine-tuning bracket (1), a welding bracket (2) arranged on the metal fine-tuning bracket (1), a positioning clamping assembly (3) arranged on the welding bracket (2), and a three-axis cutting device (4) arranged on the welding bracket (2); The positioning clamping assembly (3) comprises a three-dimensional triangular bracket (31), an upper reference support plate (32) arranged at the upper end of the three-dimensional triangular bracket (31), an upper pressing cylinder (34) arranged at the upper end of the three-dimensional triangular bracket (31) via an upper pressing cylinder mounting plate (33), an upper pressing block (35) arranged on the upper pressing cylinder (34), a lower pressing plate (36) and a lower positioning support plate (37) arranged at the lower end of the three-dimensional triangular bracket (31), wherein the three-dimensional triangular bracket (31) is provided with a three-dimensional triangular bracket (31); A lower cylinder pull plate (38) is provided at the lower end of the triangular support (31), a lower pressing cylinder (39) is provided on the lower cylinder pull plate (38), and the lower pressing cylinder (39) is connected to the lower positioning support plate (37) via a lower pressing cylinder seat (310). The lower end of the electric baking pan blank (5) is placed between the lower pressing plate (36) and the lower positioning support plate (37), and the upper end of the electric baking pan blank (5) is restricted between the upper reference support plate (32) and the upper pressing block (35); The three-axis cutting device (4) comprises an X-axis slide rail (41), an X-axis slider (42) matched with the X-axis slide rail (41), an X-axis slider (43) arranged on the X-axis slider (42), a Y-axis slider (44) arranged on the X-axis slider (43), a Y-axis slide rail (45) matched with the Y-axis slider (44), a Z-axis slide rail (46), and a Z-axis slider (47) matched with the Z-axis slide rail (46); the lower end of the Y-axis frame (8) is connected to the Y-axis slide rail (45), one side of the Y-axis frame (8) is connected to the Z-axis slider (47), and one side of the Z-axis slide rail (46) is provided with a Z-axis A slide plate (48), a cutting motor (49) is provided on the Z-axis slide plate (48), a cutting disc (410) is provided on the cutting motor (49), a cutting disc (410) is provided on the main shaft of the cutting motor (49) through a shaft sleeve, the cutting disc (410) is connected to the shaft sleeve of the cutting motor (49) through a countersunk bolt or a countersunk screw, a shaft shoulder for positioning the cutting disc (410) is provided on the shaft sleeve, the plane of the cutting disc (410) can be in close contact with the aluminum billet surface of the electric baking pan during operation, a thread is provided in the middle of the shaft shoulder, and a tool cup (9) is externally provided through a bolt or a screw; The X-axis slide rail (41) and the X-axis slider (42) realize reciprocating linear motion; The electric baking pan blank (5) is provided with a plurality of steps (51) on the back, and a riser (52) to be cut is provided in the front plate body, the upper reference support plate (32) is fitted with the vertical surface of the steps (51), and the lower pressing plate (36) is provided with a shape matching the steps (51); The contact point between the upper pressing block (35) and the electric baking pan blank (5) forms an arc-shaped inclined plane (35A).

2. The CNC cutting machine tool for aluminum billet pouring and riser of electric baking pan according to claim 1, characterized in that: A plurality of guide shafts (6) are provided between the lower cylinder pull plate (38) and the lower pressure plate (36).

3. The CNC cutting machine tool for aluminum billet pouring and riser of electric baking pan according to claim 1, characterized in that: A push-pull shield (7) is provided on the outside of the three-dimensional triangular bracket (31) via a cylinder.

Images