Aluminum substrate producing and processing device

Abstract

The utility model relates to the technical field of circuit board processing, and provides an aluminum substrate producing and processing device which comprises a numerical control cutter changing and milling mechanism, a diamond coating milling cutter and an aluminum substrate, the numerical control tool changing and milling mechanism comprises a rack, a three-coordinate moving assembly, a supporting base, a servo motor, a main shaft, a milling cutter automatic clamp, a workpiece positioning assembly, an MCU and a timer. The diamond coating milling cutter is fixedly arranged on the milling cutter automatic clamp; the aluminum substrate is fixedly arranged on the workpiece positioning assembly. The diamond coating milling cutter has the advantages that the diamond coating milling cutter has the characteristic of low friction coefficient, the milling heat is effectively reduced when the diamond coating milling cutter is used for milling an aluminum substrate, alcohol does not need to be sprayed to cool the milling cutter in the production process, the single milling working time of the milling cutter is prolonged, and the production efficiency is improved. The numerical control tool changing milling mechanism regularly changes the diamond coating milling cutter, prevents the diamond coating milling cutter from accumulating excessive heat, prolongs the service life of the milling cutter, reduces the labor amount of workers, and improves the production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board processing, in particular to an aluminum substrate production and processing device. Background Art

[0002] Aluminum-based circuit boards are printed circuit boards composed of aluminum substrates, insulating layer boards, and circuit layer boards; they have good thermal conductivity, electrical insulation, and mechanical processing properties.

[0003] Milling is usually used for the shape processing of aluminum substrates. Since ordinary milling cutters generate a lot of heat when milling aluminum substrates, alcohol is usually used in the production process. The alcohol is sprayed on the surface of the aluminum substrate through a spraying device to cool the milling cutter. This requires manual observation of the alcohol residue and timely replenishment of alcohol. However, manual replenishment of alcohol is inefficient and requires a high amount of labor.

[0004] Therefore, how to cool the milling cutter without spraying alcohol during the production process is a technical problem that needs to be solved urgently in this field. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an aluminum substrate production and processing device, which does not need to spray alcohol to cool the milling cutter during the production process.

[0006] The utility model is implemented as follows: an aluminum substrate production and processing device, comprising:

[0007] CNC tool change milling mechanism, diamond coated milling cutter and aluminum base plate;

[0008] The CNC tool-changing milling mechanism includes a frame, a three-coordinate moving assembly, a support seat, a servo motor, a spindle, an automatic milling cutter fixture, a workpiece positioning assembly, an MCU and a timer;

[0009] The support base is connected to the frame through the three-coordinate moving assembly, the spindle is rotationally connected to the support base, the servo motor is transmission-connected to the upper end of the spindle, the milling cutter automatic fixture is installed at the lower end of the spindle, the workpiece positioning assembly is installed on the frame and is also located below the milling cutter automatic fixture, the timer is electrically connected to the MCU, and the MCU is electrically connected to the servo motor and the three-coordinate moving assembly;

[0010] The diamond coated milling cutter is fixedly arranged on the milling cutter automatic fixture;

[0011] The aluminum substrate is fixedly arranged on the workpiece positioning assembly.

[0012] Furthermore, the diamond coated milling cutter has a diamond coating on the cutting edge, and the shank of the diamond coated milling cutter is a tungsten steel shank.

[0013] Further, the workpiece positioning assembly comprises a base plate, a positioning pin and a vacuum suction cup, the base plate is fixedly connected to the frame, and the positioning pin and the vacuum suction cup are both fixedly connected to the base plate;

[0014] The aluminum substrate is provided with a positioning hole, the positioning hole is sleeved on the positioning pin, and the lower surface of the aluminum substrate is in contact with the vacuum suction cup.

[0015] Furthermore, the upper surface of the aluminum substrate is covered with a wooden backing plate.

[0016] Furthermore, the CNC tool-changing milling mechanism also includes a cutter disc, which is rotatably connected to the frame in a step-by-step manner, and the cutter disc has a tool groove for placing a milling cutter, and a plurality of the tool grooves are evenly spaced and arranged in a circle.

[0017] Compared with the background technology, the advantages of the utility model are: the diamond coated milling cutter has the characteristics of low friction coefficient. The use of diamond coated milling cutter to mill aluminum substrates effectively reduces the milling heat. There is no need to spray alcohol to cool the milling cutter during the production process, which increases the single milling working time of the milling cutter. The CNC tool changing milling mechanism regularly replaces the diamond coated milling cutter to avoid excessive heat accumulation of the diamond coated milling cutter, extend the service life of the milling cutter, reduce manual labor, and improve production efficiency. The diamond coated milling cutter also has the characteristics of high hardness, high wear resistance, and low surface roughness. When processing aluminum substrates, the processing accuracy is high, sticking of the cutter is avoided, less burrs are generated, and the milling quality is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

[0019] Figure 1 It is a structural schematic diagram of the aluminum substrate production and processing device of the utility model.

[0020] Figure 2 It is a schematic diagram of an aluminum substrate installed in a workpiece positioning assembly in an embodiment of the utility model.

[0021] Figure 3 It is a schematic diagram of the connection between the automatic clamp of the milling cutter and the main shaft in the embodiment of the utility model.

[0022] Figure 4 It is a schematic diagram of the automatic clamp for the milling cutter releasing the milling cutter in the embodiment of the utility model.

[0023] Figure 5 It is a schematic diagram of the telescopic rod of the telescopic cylinder in the embodiment of the utility model being disengaged downward from the sliding sleeve.

[0024] Figure 6 It is a schematic structural diagram of a diamond coated milling cutter in an embodiment of the utility model.

[0025] Figure 7 It is a schematic diagram of a diamond coated milling cutter placed in a cutter groove in an embodiment of the utility model.

[0026] Figure 8 It is a schematic diagram of the positions of the aluminum substrate and the knife disc in the embodiment of the utility model.

[0027] Fig. 9 It is a connection diagram of the MCU in the embodiment of the utility model.

[0028] Figure 1: CNC tool-changing milling mechanism 1; frame 11; three-coordinate moving assembly 12; support seat 13; servo motor 14; spindle 15; workpiece positioning assembly 16; base plate 161; positioning pin 162; vacuum suction cup 163; milling cutter automatic clamp 17; housing 171; telescopic cylinder 172; tool seat 173; mounting hole 1731; limiting ring 174; sleeve 175; connecting rod 176; clamping block 177; limiting block 178; MCU 18; timer 19; tool disc 110; tool groove 111; diamond-coated milling cutter 2; tool handle 21; strip guide protrusion 211; limiting plate 212; blade 22; tool rod 23; aluminum substrate 3; wooden pad 4. DETAILED DESCRIPTION

[0029] The embodiment of the utility model provides an aluminum substrate production and processing device, which overcomes the shortcomings of the background technology that an ordinary milling cutter generates a lot of heat when milling an aluminum substrate, alcohol is used in the production process, and the alcohol is replenished manually; the milling heat is effectively reduced by using a diamond-coated milling cutter to mill an aluminum substrate without alcohol, the cutter is changed regularly, the service life of the milling cutter is extended, the manual labor is reduced, the production efficiency is improved, the processing accuracy is high, the sticking of the cutter is avoided, the burrs are reduced, and the milling quality is improved. Technical effects.

[0030] The overall idea of ​​the technical solution of the embodiment of the utility model is as follows:

[0031] The diamond coated milling cutter is installed on the automatic milling cutter fixture of the CNC tool changing milling mechanism. Driven by the three-coordinate moving component and the servo motor, the diamond coated milling cutter mills the aluminum substrate. The diamond coating position of the milling cutter contacts the aluminum material, which effectively reduces the milling heat. After the milling time of a single diamond coated milling cutter reaches the set time, the diamond coated milling cutter stops milling and is then moved to the cutter disc located in the tool changing area. The automatic milling cutter fixture replaces the diamond coated milling cutter; this ensures the milling efficiency of the aluminum substrate, the service life of the diamond coated milling cutter, and the milling quality of the aluminum substrate, which is particularly suitable for processing orders with high product quality requirements and short product delivery time.

[0032] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] See also Figures 1 to 9 , a preferred embodiment of the utility model.

[0034] An aluminum substrate production and processing device, comprising:

[0035] CNC tool-changing milling mechanism 1, diamond-coated milling cutter 2 and aluminum substrate 3;

[0036] The CNC tool-changing milling mechanism 1 includes a frame 11, a three-coordinate moving assembly 12, a support seat 13, a servo motor 14, a spindle 15, a workpiece positioning assembly 16, a milling cutter automatic fixture 17, an MCU 18 and a timer 19;

[0037] The support seat 13 is connected to the frame 11 through the three-coordinate moving assembly 12, the spindle 15 is rotationally connected to the support seat 13, the servo motor 14 is transmission-connected to the upper end of the spindle 15, the milling cutter automatic fixture 17 is installed at the lower end of the spindle 15, the workpiece positioning assembly 16 is installed on the frame 11, and is also located below the milling cutter automatic fixture 17, the timer 19 is electrically connected to the MCU 18, and the MCU 18 is electrically connected to the servo motor 14 and the three-coordinate moving assembly 12;

[0038] The diamond coated milling cutter 2 is fixedly arranged on the milling cutter automatic fixture 17;

[0039] The aluminum substrate 3 is fixedly disposed on the workpiece positioning assembly 16 .

[0040] The diamond coated milling cutter 2 has the characteristic of low friction coefficient. The use of the diamond coated milling cutter 2 to mill the aluminum substrate 3 effectively reduces the milling heat. During the production process, there is no need to spray alcohol to cool the milling cutter, which increases the single milling working time of the milling cutter. The CNC tool changing milling mechanism 1 regularly replaces the diamond coated milling cutter 2 to avoid the diamond coated milling cutter 2 accumulating too much heat, extend the service life of the milling cutter, reduce manual labor, and improve production efficiency. The diamond coated milling cutter 2 also has the characteristics of high hardness, high wear resistance, and low surface roughness. When processing the aluminum substrate 3, the processing accuracy is high, sticking of the cutter is avoided, less burrs are generated, and the milling quality is improved.

[0041] The three-coordinate moving assembly 12 moves the support seat 13 in the horizontal, longitudinal and vertical directions, changes the position of the support seat 13 in space, and thus changes the milling trajectory of the diamond coated milling cutter 2. The working principle of the three-coordinate moving assembly 12 is the prior art. The servo motor 14 controls the rotation state of the spindle 15, including the forward rotation, reverse rotation and speed of the spindle 15. The spindle 15 rotates the diamond coated milling cutter 2 with the aid of the milling cutter automatic clamp 17.

[0042] The timer 19 is used to set the tool change time; for example, it is set to three hours. The tool change time is set manually according to the actual size of the diamond coated milling cutter 2, the milling speed, the hardness of the milling material and other factors. After reaching the set time, the timer 19 sends a signal to the MCU18, and the MCU18 sends a tool change preparation signal to the servo motor 14 and the three-coordinate moving assembly 12. The servo motor 14 stops the diamond coated milling cutter 2 from milling, and the three-coordinate moving assembly 12 moves the diamond coated milling cutter 2 to the cutter disc 110 located in the tool change area. After receiving the tool change command from the prior art control system of the CNC tool change milling mechanism 1, the automatic milling cutter clamp 17 automatically releases the diamond coated milling cutter 2, and after inserting the spare diamond coated milling cutter, it automatically clamps the spare diamond coated milling cutter.

[0043] The automatic milling cutter clamp 17 includes a shell 171, a telescopic cylinder 172, a tool seat 173, a limiting ring 174, a sleeve 175, a connecting rod 176, a clamping block 177, a limiting block 178 and a torsion spring. The shell 171 is fixedly connected to the slide seat 15, and the shell 171 is provided with a rotating hole. The tool seat 173 is located in the inner cavity of the shell 171. The lower end of the spindle 1516 passes through the rotating hole and is also fixedly connected to the tool seat 173. A through hole is provided on the side wall of the tool seat 173, and a mounting hole 1731 is provided at the lower end of the tool seat 173. The top of the mounting hole 1731 has a strip guide groove, and the limiting block 178 is hinged to the through hole. One end of the connecting rod 176 is hinged to the limiting block 178, and the other end of the connecting rod 176 It is hinged with the clamping block 177, and the clamping block 177 is horizontally slidably connected to the through hole and can also enter and exit the mounting hole 1731. The torsion spring is installed between the limit block 178 and the through hole. The limit ring 174 is fixedly arranged on the outer surface of the tool holder 173 and is also located below the limit block 178. A plurality of the limit blocks 178, connecting rods 176, clamping blocks 177, and through holes are evenly spaced around the axis of the tool holder 173. The sliding sleeve 175 is slidably connected to the tool holder 173 and is also located between the limit ring 174 and the limit block 178. The telescopic cylinder 172 is fixedly arranged on the housing 171, and the telescopic rod of the telescopic cylinder 172 is used to push the sliding sleeve 175 upward and disengage from the sliding sleeve 175 downward.

[0044] The handle 21 of the diamond-coated milling cutter 2 has a strip guide protrusion 211 and a limit plate 212. When the milling cutter automatic clamp 17 is required to clamp the milling cutter 2, the telescopic rod of the telescopic cylinder 172 pushes the sliding sleeve 175 upward, and the sliding sleeve 175 rises to push the limit block 178. The limit block 178 moves the clamping block 177 outward through the connecting rod 176, and the torsion spring is in a torsion state. Then the handle 21 of the milling cutter 2 extends into the mounting hole 1731 of the cutter seat 173, and the strip guide protrusion 211 of the handle 21 is engaged with the strip guide groove of the mounting hole 1731. , thus limiting the circumferential rotation of the milling cutter 4; during the engagement process, the spindle 15 allows the cutter seat 173 to make a slight rotation, which helps to engage the cutter in place; the telescopic rod of the telescopic cylinder 172 disengages downward from the sliding sleeve 175, the torsion spring is reset, the limit block 178 pushes the sliding sleeve 175 downward, the connecting rod 176 moves the clamping block 177 inward, and the clamping block 177 contacts the bottom surface of the limit plate 212 of the handle 21 to prevent the handle 21 from being separated from the mounting hole 1731. When the automatic milling cutter clamp 17 needs to release the diamond-coated milling cutter 2, the telescopic rod of the telescopic cylinder 172 pushes the sliding sleeve 175 upward, the sliding sleeve 175 pushes the limit block 178 upward, and the clamping block 177 moves outward through the connecting rod 176, releasing the restriction on the handle 21, and the diamond-coated milling cutter 2 is separated from the mounting hole 1731 under the action of its own gravity.

[0045] MCU18 not only sends the tool change signal to the servo motor 14, but also sends it to the control system of the CNC tool change milling mechanism 1; the control system of the CNC tool change milling mechanism 1 coordinates the three-coordinate moving assembly 12, the servo motor 14 and the automatic milling cutter fixture 17 to perform the tool change action. When the tool is changed, the servo motor 14 stops the milling action, and the three-coordinate moving assembly 12 moves with the automatic milling cutter fixture 17 to the tool slot 111 in the tool change area, and the automatic milling cutter fixture 17 releases the diamond-coated milling cutter 2, and the diamond-coated milling cutter 2 falls into the tool slot 111; the automatic milling cutter fixture 17 then moves to the position of the new diamond-coated milling cutter 2 on the cutter disc, automatically clamps the new milling cutter, and continues the milling operation.

[0046] The diamond coating milling cutter 2 is provided with a diamond coating on a cutting edge 22, and a tool bar 23 of the diamond coating milling cutter 2 is a tungsten steel tool bar 23. The diamond coating is provided on the cutting edge 22 of the milling cutter by chemical vapor deposition technology.

[0047] The workpiece positioning assembly 16 includes a bottom plate 161, a positioning pin 162 and a vacuum suction cup 163. The bottom plate 161 is fixedly connected to the frame 11, and the positioning pin 162 and the vacuum suction cup 163 are both fixedly connected to the bottom plate 161.

[0048] The aluminum substrate 3 is provided with a positioning hole, which is sleeved by the positioning pin 162, and the lower surface of the aluminum substrate 3 is in contact with the vacuum suction cup 163. The beneficial effect of this technical solution is that the aluminum substrate 3 is conveniently positioned, the positioning pin 162 limits the horizontal movement of the aluminum substrate 3, and the vacuum suction cup 163 is used to suck the aluminum substrate 3. After the milling is completed, the vacuum suction cup 163 releases the vacuum, and the staff takes away the aluminum substrate 3.

[0049] The upper surface of the aluminum substrate 3 is covered with a wooden backing plate 4. The beneficial effect of this technical solution is to prevent the diamond-coated milling cutter 2 from scratching the non-milled aluminum surface of the aluminum substrate 3 during the milling process. The lower surface of the wooden backing plate 4 has a groove, and the groove cooperates with the positioning pin 162.

[0050] The CNC tool-changing milling mechanism 1 also includes a cutter disc 110, which is connected to the frame 11 in a step-by-step rotation manner. The cutter disc 110 has a tool slot 111 for placing a milling cutter, and a plurality of the tool slots 111 are evenly spaced and arranged in a circle. The beneficial effect of this technical solution is that a spare diamond-coated milling cutter 2 is placed in the cutter disc 110, and the tool slot 111 of the cutter disc 110 at the tool-changing position is an empty tool slot; when replacing the milling cutter, the automatic milling cutter fixture 17 moves to the upper part of the tool-changing position of the cutter disc 110, and the used diamond-coated milling cutter 2 is placed in the empty tool slot of the cutter disc 110, and then the turntable rotates to a set angle, and the new diamond-coated milling cutter 2 comes to the tool-changing position, and the automatic milling cutter fixture 17 takes away the new diamond-coated milling cutter 2, and at this time, the tool slot 111 of the cutter disc 110 at the tool-changing position becomes an empty tool slot. The stepping motor is connected to the cutter disc to realize the stepping rotation of the cutter disc.

[0051] The working method of the utility model is as follows: the aluminum substrate 3 is mounted on the workpiece positioning assembly 16; the tool change time is set in the timer 19. The CNC tool change milling mechanism 1 is started, and the milling cutter automatic fixture 17 moves the diamond coated milling cutter 2 to the top of the aluminum substrate 3 through the three-coordinate moving assembly 12; the servo motor 14 rotates the tool holder 173 of the milling cutter automatic fixture 17 through the spindle 15, and the three-coordinate moving assembly 12 makes the diamond coated milling cutter 2 move downward and then mill the aluminum substrate 3 along the preset milling trajectory. The diamond coated milling cutter 2 has the characteristics of low friction coefficient, and the diamond coating position of the milling cutter contacts the aluminum material. The use of the diamond coated milling cutter 2 to mill the aluminum substrate 3 effectively reduces the milling heat, and there is no need to spray alcohol to cool the milling cutter during the production process. After the tool change time is reached, the milling cutter automatic fixture 17 moves the diamond coated milling cutter 2 to the position of the cutter disc 110 to perform the tool change action, and the milling cutter automatic fixture 17 continues the milling operation with the new diamond coated milling cutter; avoid the diamond coated milling cutter from accumulating too much heat and extend the service life of the milling cutter. It not only ensures the milling efficiency of the aluminum substrate, but also guarantees the service life of the diamond-coated milling cutter, and improves the milling quality of the aluminum substrate. It is particularly suitable for processing orders with high requirements on product quality and short product delivery time.

[0052] Although the specific implementation methods of the present invention are described above, those skilled in the art should understand that the specific embodiments described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. An aluminum substrate production and processing device, characterized in that: include: CNC tool change milling mechanism, diamond coated milling cutter and aluminum base plate; The CNC tool-changing milling mechanism includes a frame, a three-coordinate moving assembly, a support seat, a servo motor, a spindle, an automatic milling cutter fixture, a workpiece positioning assembly, an MCU and a timer; The support base is connected to the frame through the three-coordinate moving assembly, the spindle is rotationally connected to the support base, the servo motor is transmission-connected to the upper end of the spindle, the milling cutter automatic fixture is installed at the lower end of the spindle, the workpiece positioning assembly is installed on the frame and is also located below the milling cutter automatic fixture, the timer is electrically connected to the MCU, and the MCU is electrically connected to the servo motor and the three-coordinate moving assembly; The diamond coated milling cutter is fixedly arranged on the milling cutter automatic fixture; The aluminum substrate is fixedly arranged on the workpiece positioning assembly.

2. The aluminum substrate production and processing device according to claim 1, characterized in that: The diamond coated milling cutter has a diamond coating on its cutting edge, and the shank of the diamond coated milling cutter is made of tungsten steel.

3. The aluminum substrate production and processing device according to claim 1, characterized in that: The workpiece positioning assembly comprises a base plate, a positioning pin and a vacuum suction cup, wherein the base plate is fixedly connected to the frame, and the positioning pin and the vacuum suction cup are both fixedly connected to the base plate; The aluminum substrate is provided with a positioning hole, the positioning hole is sleeved on the positioning pin, and the lower surface of the aluminum substrate is in contact with the vacuum suction cup.

4. The aluminum substrate production and processing device according to claim 2, characterized in that: The upper surface of the aluminum substrate is covered with a wooden backing plate.

5. The aluminum substrate production and processing device according to claim 1, characterized in that: The CNC tool-changing milling mechanism also includes a cutter disc, which is connected to the frame in a step-by-step rotation manner. The cutter disc has a tool groove for placing a milling cutter, and a plurality of the tool grooves are evenly spaced and arranged in a circle.

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