CN109940232B - ox horn insert processing device - Google Patents
ox horn insert processing device Download PDFInfo
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- CN109940232B CN109940232B CN201910341000.0A CN201910341000A CN109940232B CN 109940232 B CN109940232 B CN 109940232B CN 201910341000 A CN201910341000 A CN 201910341000A CN 109940232 B CN109940232 B CN 109940232B
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Abstract
the invention relates to the technical field of spark machining equipment, in particular to a horn insert machining device which comprises a base, a base and a machining device body, wherein the base is used for supporting and fixing the horn insert machining device; a first fixed block and a second fixed block are respectively embedded above the base; the discharge copper plug is used for machining parts and is positioned between the first fixing block and the second fixing block; the rotating shaft is used for connecting and fixing the discharging copper bus, penetrates through the first fixing block and the second fixing block, and is fixedly connected with the rotating shaft between the first fixing block and the second fixing block so as to realize the rotating motion of the discharging copper bus; and the transmission gear is used for driving the rotating shaft to rotate, is positioned on the outer side of the first fixed block and is connected with the rotating shaft. The invention can reduce the pressure loss of the device and realize automatic production.
Description
Technical Field
the invention relates to the technical field of spark machining equipment, in particular to a machining device for an ox-horn insert.
Background
spark machine (EDM for short, called electric Discharge Machining) is a mechanical processing equipment, mainly used for electric spark Machining various workpieces with complex shapes and fine shapes, such as a punch, a die, a punch-die, a fixed plate, a stripper plate and the like of a blanking die, a forming cutter, a sample plate, a metal electrode for electric spark forming processing, various fine hole grooves, narrow slits, arbitrary curves and the like, has the outstanding advantages of small Machining allowance, high Machining precision, short production period, low manufacturing cost and the like, and has been widely applied in production.
the electric spark machining is based on the principle that the material on the surface of a workpiece is removed by layer erosion by using instantaneous high temperature generated when sparks between an electrode and the workpiece are electrified. During electric spark machining, one pole of a pulse power supply is connected with a tool electrode, the other pole of the pulse power supply is connected with a workpiece electrode, and the two poles of the pulse power supply are immersed in a liquid medium (common kerosene, mineral oil or deionized water) with certain insulation degree. The tool electrode is controlled by the automatic feeding adjusting device to ensure that a small discharge gap (0.01-0.05 mm) is maintained between the tool and the workpiece during normal processing. When pulse voltage is applied between the electrodes, the liquid medium at the closest point between the electrodes under the current condition is broken down to form a discharge channel. Due to the fact that the cross section of the channel is small, the discharge time is extremely short, energy is concentrated to a high degree (10-107W/mm), instantaneous high temperature generated in a discharge area is enough to enable materials to be molten and even evaporated, and therefore a small pit is formed. After the first pulse discharge is finished, a short interval time is passed, and the second pulse is in turn discharged at the closest point between the two electrodes. The high frequency of such cycles continues as the tool electrode is fed continuously toward the workpiece, and its shape is eventually replicated on the workpiece to form the desired machined surface. The traditional spark machine does not have a C shaft, and is linear motion, and the processing to dysmorphism piece often has the dead angle, has introduced a horn shape into runner spark machine processingequipment in chinese patent publication No. 206527402U, and it is installed on the C shaft of spark machine, directly drives the C shaft by the motor and rotates.
It can be seen that the prior art spark machine also has the following problems:
(1) The traditional motor drives the shaft C to rotate, so that the pressure loss of the machine is increased;
(2) the traditional spark machine often has wire clamping after processing products, which affects the appearance;
(3) Automatic production cannot be realized.
disclosure of Invention
the invention aims to provide a machining device for a horn insert, so that machining of the horn insert is better realized, and automatic production is realized.
in order to achieve the above object, the present invention provides a bullhorn insert processing apparatus, comprising,
The base is used for supporting and fixing the ox horn insert processing device;
A first fixed block and a second fixed block are respectively embedded above the base;
the device comprises a first fixing block, a second fixing block, a discharging copper male and a pulse sensor, wherein the first fixing block is used for fixing the first fixing block and the second fixing block; the rotating shaft penetrates through the first fixing block and the second fixing block, the discharging copper bus is fixedly connected with the rotating shaft between the first fixing block and the second fixing block and used for realizing the rotating motion of the discharging copper bus, and a second temperature sensor is arranged on the surface of the rotating shaft and used for monitoring the temperature of the surface of the rotating shaft in real time;
the cooling device is sleeved on the rotating shaft between the first fixing block and the second fixing block and is respectively connected with the first temperature sensor, the second temperature sensor and the pulse sensor so as to cool the discharging copper bus and the rotating shaft according to the temperature and pulse width information of the discharging copper bus and the rotating shaft;
The cooling device includes: a stainless steel shell is arranged on the outer side of the shell,
a refrigeration semiconductor is arranged in the stainless steel shell, is of an annular structure, is sleeved on the outer surface of the rotating shaft and is used for cooling the discharge copper bus and the rotating shaft;
The refrigeration semiconductor is connected with a single chip microcomputer, and the single chip microcomputer is connected with the first temperature sensor and the second temperature sensor and used for acquiring temperature information of the discharge copper bus and the rotating shaft and pulse width information of the discharge copper bus;
the single chip microcomputer is also connected with a temperature switch, the temperature switch can be automatically switched on or switched off according to temperature change and is used for automatically controlling the cooling device, and the cooling device also comprises a power supply which is connected with the single chip microcomputer and is used for supplying power to the whole cooling device;
When the temperature switch senses that the temperature is higher than 40 ℃, the temperature switch is automatically closed, the cooling device starts to operate, the first temperature sensor and the second temperature sensor respectively detect the surface temperatures of the discharging copper bus and the rotating shaft in real time, the pulse sensor detects the pulse width of the discharging copper bus in real time and transmits the pulse width to the single chip microcomputer, and the single chip microcomputer controls the refrigerating temperature of the refrigerating semiconductor according to the following formula (1):
Wherein T represents the refrigeration temperature of the refrigeration semiconductor, T1Indicating the surface temperature, t, of the discharge copper electrode measured by the first temperature sensor2indicating that a second temperature sensor measures the surface temperature, t, of the rotating shaft0Indicating a preset temperature, t0s represents the pulse width of the discharge copper capacitor 4 measured by the pulse sensor;
The processing device further comprises a transmission gear for driving the rotating shaft to rotate, and the transmission gear is located on the outer side of the first fixing block and connected with the rotating shaft;
The rack is used for driving the transmission gear to rotate, the rack is meshed with the transmission gear, the upper end of the rack is connected with a motor, and the motor is used for providing power;
A pressing sheet is arranged between the rack and the motor and used for ensuring the precision of the processed part;
And a mounting groove is formed at the joint of the base and the vertical groove of the first fixing block and used for mounting the rack.
The outer side of the first fixing block is provided with a vertical groove, and the rack is arranged in the vertical groove.
When the ox horn insert processing device is used for processing parts, the method comprises the following steps:
Step 1, connecting a pressing sheet with a rack and a motor;
Step 2, fixing the discharge copper pin on a rotating shaft between a first fixed block and a second fixed block;
Step 3, starting a motor, driving a rack to move up and down by the motor, meshing the rack with a transmission gear, converting linear motion into rotary motion, and driving a discharging copper male to rotate;
And 4, the discharge copper is contacted with the part to be processed when rotating, and the process current is generated to process the part so as to achieve the required processing effect.
further, the base is made of solid steel.
Furthermore, the first fixing block and the second fixing block are respectively a rectangular thick plate and are vertically embedded into the base.
Further, the first fixing block and the second fixing block are made of phenolic plastics.
further, the discharge copper is used for processing a cavity of a mold and is shaped like a horn.
Furthermore, the transmission gear is sleeved on the rotating shaft and used for driving the rotating shaft to rotate.
Further, the tooth profile of the transmission gear is defined according to the following formula:
since each tooth shape of the transmission gear is the same, and the shape of a single tooth is an axisymmetric pattern, the tooth shape of only one side of the symmetry axis is defined herein.
The tooth-shaped curve of the transmission gear consists of a first arc ab, a second arc bc, a third arc cd, a fourth arc de and a fifth arc ef;
the shape of a first arc between the first end point a and the second end point b of the transmission gear is determined according to the following formula (2):
Where α represents the shape curve of the first arc ab, R represents the radius of the drive gear, and θ1Represents the included angle between the straight line from the first end point a to the center of the transmission gear and the straight line from the end point f to the center of the transmission gear, L1The distance from the second end point b to the center of the transmission gear is shown;
the shape of the second arc between the second end point b and the third end point c is determined according to the following equation (3):
Where β represents the shape curve of the second arc bc, R represents the radius of the drive gear, and θ2Denotes the angle L between the tangent at said second end point b and the tangent at said first end point a in the first arc1to representdistance from second end b to center of drive gear, L2The distance from the third end point c to the center of the transmission gear is shown;
The shape of the third arc between the third end point c and the fourth end point d is determined according to the following equation (4):
where γ denotes a shape curve of the third arc cd, R denotes a radius of the transmission gear, and θ3Represents the angle between the tangent at said third end point c and the tangent at said second end point b in the second arc, L3Denotes the distance, L, from the third end point c to the center of the drive gear4The distance from the fourth end point d to the center of the transmission gear is shown;
The shape of the fourth arc between the fourth end point d and the fifth end point e is determined according to the following equation (5):
wherein the content of the first and second substances,Curve showing the shape of the fourth arc de, R the radius of the transmission gear, L5denotes the distance, theta, from the fifth end e to the center of the drive gear4Representing the included angle between the tangent at the fourth end point d and the tangent at the third end point c in the third arc line;
The shape of the fourth arc between the fifth end point e and the sixth end point f is determined according to the following equation (6):
Where ζ represents the shape curve of the fifth arc ef, R represents the radius of the transmission gear, L5Denotes the distance, theta, from the fifth end e to the center of the drive gear1a straight line from the first end point a to the center of the transmission gear and a straight line from the end point f to the center of the transmission gear are shownD represents the circumference of the transmission gear, and pi is the circumference ratio and has a value of 3.14. Further, the rack is meshed with the transmission gear, and the shape of the teeth of the rack is consistent with that of the transmission gear.
Furthermore, the upper end of the rack is connected with a motor, the motor is used for providing power to drive the rack to move up and down, and meanwhile, the transmission gear is driven to rotate, so that the discharge copper is driven to rotate.
Further, the pressing sheet is arranged between the rack and the motor, and the pressing sheet is made of rubber, steel and plastics.
Furthermore, the rotating shaft is made of S50C steel.
Further, the mounting groove is located the base and the junction of the vertical recess of first fixed block for the installation the rack.
Compared with the prior art, the ox horn insert machining device has the advantages that linear motion is converted into rotary motion through the transmission gear, the linear motion is directly driven by the motor without being connected with the C shaft, pressure loss is effectively reduced, the discharge copper is in an integral ox horn shape, the discharge copper can be directly used for machining the ox horn insert, machining precision can be effectively improved, and meanwhile machining speed can be improved.
Furthermore, the cooling device is additionally arranged to cool the discharge copper male and the rotating shaft in the working process, the temperature control is more reasonable by combining the pulse width in the working process, the carbon precipitation is obviously reduced, the carbon deposition condition is avoided, the discharge copper male is more stable in discharge, the processing speed is improved, and the service lives of the discharge copper male and the rotating shaft are prolonged. Meanwhile, the cooling device is automatically controlled by the temperature switch, when the temperature rises to 40 ℃, the temperature switch is automatically closed, the cooling device is started, and when the temperature drops to 28 ℃, the temperature switch is automatically opened, so that the electric quantity is saved. The cooling device does not need to be manually controlled in the cooling process, so that the working efficiency of the ox horn insert processing device is improved, and the labor cost is not increased.
Furthermore, the ox horn insert processing device can directly throw out redundant working liquid by the rotary motion in the processing process, a water gap does not need to be cut, the working efficiency is improved, and automatic processing can be realized.
furthermore, the ox horn insert processing device provided by the invention can enable the processed product to have no clamping line and pouring mark due to the rotation motion in the processing process, and the product is more attractive.
furthermore, the ox horn insert processing device is simple in structure and convenient to install and replace elements.
furthermore, in the process of using the ox horn insert processing device, the transmission gear and the rack are in continuous back-and-forth contact, so that abrasion or other faults are easily caused.
furthermore, the first fixed block and the second fixed block are made of phenolic plastics, so that the high-strength high-insulation high-temperature-resistant high-pressure-resistant high-temperature-.
Furthermore, the pressing sheet is synthesized by rubber, steel and plastics, so that the damping effect can be effectively achieved, and the whole processing device is more stable.
further, the rotating shaft is made of S50C steel, and has excellent wear resistance and low ductility.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural view of a oxhorn insert processing apparatus according to an embodiment of the present invention;
FIG. 2 is a functional block diagram of a cooling apparatus according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a transmission gear according to an embodiment of the present invention.
Detailed Description
Please refer to fig. 1 and 2, which are schematic structural views of an ox horn insert processing device according to the present invention, including a base 1, a first fixing block 2, a second fixing block 3, a discharging copper rod 4, a transmission gear 5, a rack 6, a pressing sheet 7, a rotating shaft 8, a mounting groove 9 and a cooling device 10; wherein, the first fixed block 2 and the second fixed block 3 are respectively embedded in the base 1, the discharging copper anode 4 is positioned between the first fixed block 2 and the second fixed block 3, the discharging copper anode 4 is connected with the first fixed block 2 and the second fixed block 3 through the rotating shaft 8, and is used for realizing the rotary motion of the discharging copper anode 4, the surface of the discharging copper anode 4 is provided with a first temperature sensor 104 for monitoring the surface temperature of the discharging copper anode 4 in real time, and a pulse sensor 107 for monitoring the pulse width of the discharging copper anode 4 in real time, the first temperature sensor 104 and the pulse sensor 107 are respectively connected with the cooling device 10, the rotating shaft 8 passes through the first fixed block 2 and the second fixed block 3, the surface of the rotating shaft 8 is provided with a second temperature sensor 105, and the second temperature sensor 105 is connected with the cooling device 10, for monitoring the temperature of the surface of the rotating shaft 8 in real time.
The cooling device 10 is sleeved on the rotating shaft 8 between the first fixing block 2 and the second fixing block 3 and used for cooling the rotating shaft 8 and the discharging copper rod 4 in the working process.
the utility model discloses a discharge copper bus bar, including base 1, rotation axis 8, drive gear 5, rack 6, preforming 7, the motor is used for providing power, the preforming is 7 set up rack 6 with between the motor, play the cushioning effect, base 1 with the junction of the vertical recess of first fixed block 2 has a mounting groove 9, is used for the installation rack 6, the outside of first fixed block 2 has a vertical recess, be equipped with rack 6 in the vertical recess, rack 6 with drive gear 5 meshes, is used for driving discharge copper is public 4 rotates, the upper end of rack 6 is connected with a motor, the motor is used for providing power, preforming 7 sets up between rack 6 and the motor, the base 1 with the junction of the vertical recess of.
Specifically, as shown in fig. 2, the cooling device 10 includes a stainless steel housing (not shown), a refrigeration semiconductor 102 is disposed inside the stainless steel housing, the refrigeration semiconductor is of a circular structure and is sleeved on an outer surface of the rotating shaft 8 for cooling the discharging copper bus 4 and the rotating shaft 8, the refrigeration semiconductor is connected to a single chip microcomputer 101, the single chip microcomputer 101 is further connected to a first temperature sensor 104 and a second temperature sensor 105 for obtaining temperatures of the discharging copper bus 4 and the rotating shaft 8, the single chip microcomputer 101 is further connected to a pulse sensor 107 for obtaining pulse width information of the discharging copper bus 4, the single chip microcomputer 101 is further connected to a temperature switch 103, and the temperature switch 103 can be automatically turned on or off according to a temperature change for automatically controlling the cooling device 10, the cooling device 10 further comprises a power supply 106 connected to the single chip for supplying power to the whole cooling device 10. Specifically, when the device works, when the temperature switch senses that the temperature is higher than 40 ℃, the temperature switch 103 is automatically closed, the cooling device 10 starts to operate, the first temperature sensor 104 and the second temperature sensor 105 respectively detect the surface temperatures of the discharge copper bus 4 and the rotating shaft 8 in real time, the pulse sensor 107 detects the pulse width of the discharge copper bus 4 in real time and transmits the pulse width to the single chip microcomputer 101, and the single chip microcomputer 101 controls the refrigerating temperature of the refrigerating semiconductor 102 according to the following formula (1):
Wherein T represents the cooling temperature of the cooling semiconductor 102, T1Represents that the first temperature sensor 104 measures the surface temperature, t, of the discharge copper 42Indicating that the second temperature sensor 105 measures the surface temperature, t, of the rotating shaft 80indicating a preset temperaturedegree, t0is 25, s represents the pulse width of the discharge copper 4 measured by the pulse sensor 107.
Specifically, the single chip microcomputer 101 controls the temperature of the refrigeration semiconductor 102 according to the formula, reduces the temperatures of the discharge copper capacitor 4 and the rotating shaft 8 through heat transfer, enables the machining device to work in a reasonable temperature range under different pulse width conditions, is stable in discharge, is not prone to carbon deposition, improves machining rate, prolongs the service lives of the discharge copper capacitor and the rotating shaft, and automatically switches off the temperature switch when the temperature is reduced to 28 ℃, so that electric quantity is saved.
In the embodiment, the cooling device 10 does not need to be manually controlled in the cooling process, so that the working efficiency of the ox horn insert processing device is improved, and the labor cost is not increased.
when the ox horn insert processing device is used for processing parts, the method comprises the following steps:
Step 1, connecting a pressing sheet 7 and a rack 6 with a motor;
Step 2, fixing the discharge copper bush 4 on a rotating shaft 8 between the first fixing block 2 and the second fixing block 3;
step 3, starting a motor, driving a rack 6 to move up and down by the motor, meshing the rack 6 with a transmission gear 5, converting the linear motion into rotary motion, and driving a discharging copper pin 4 to rotate;
And 4, the discharge copper bush 4 is contacted with the part to be processed when rotating, and the process current is generated to process the part so as to achieve the required processing effect.
As shown in fig. 1, the base 1 is made of solid steel material and is used for supporting and fixing the ox horn insert machining device, and the shape of the base 1 may be a cube, a cylinder, a circular truncated cone, or other shapes as long as the requirement for supporting and fixing the whole ox horn insert machining device is met.
As shown in fig. 1, the first fixing block 2 and the second fixing block 3 are respectively rectangular thick plates vertically embedded in the base 1, and the first fixing block 2 and the second fixing block 3 are made of phenolic plastics, which have the characteristics of high mechanical strength, good insulation, heat resistance and corrosion resistance, and also have the advantages of abundant raw material sources, simple synthesis process and low price.
As shown in fig. 1, the discharge copper core 4 is used for processing a cavity of a mold, is shaped like a horn, and can be directly used for processing a horn insert, thereby effectively improving the processing accuracy.
as shown in fig. 1, the transmission gear 5 is sleeved on the rotating shaft 8 to drive the rotating shaft 8 to rotate.
Specifically, referring to fig. 3, the tooth profile of the transmission gear 5 is defined according to the following formula:
Since each tooth shape of the transmission gear 5 is the same and the shape of the individual tooth is an axisymmetric pattern, the tooth shape of only one side of the symmetry axis is defined herein.
the tooth-shaped curve of the transmission gear 5 consists of a first arc ab, a second arc bc, a third arc cd, a fourth arc de and a fifth arc ef;
the shape of a first arc between the first end point a and the second end point b of the transmission gear 5 is determined according to the following formula (2):
where α represents the shape curve of the first arc ab, R represents the radius of the drive gear, i.e. the distance of the end point f from the center of the drive gear, and θ1represents the included angle between the straight line from the first end point a to the center of the transmission gear and the straight line from the sixth end point f to the center of the transmission gear, L1The distance from the second end point b to the center of the transmission gear is shown;
The shape of the second arc between the second end point b and the third end point c is determined according to the following equation (3):
Wherein β represents a second arc linebc, R represents the radius of the drive gear, theta2denotes the angle L between the tangent at said second end point b and the tangent at said first end point a in the first arc1denotes the distance, L, from the second end b to the center of the drive gear2The distance from the third end point c to the center of the transmission gear is shown;
The shape of the third arc between the third end point c and the fourth end point d is determined according to the following equation (4):
Where γ denotes a shape curve of the third arc cd, R denotes a radius of the transmission gear, and θ3Represents the angle between the tangent at said third end point c and the tangent at said second end point b in the second arc, L3denotes the distance, L, from the third end point c to the center of the drive gear4The distance from the fourth end point d to the center of the transmission gear is shown;
The shape of the fourth arc between the fourth end point d and the fifth end point e is determined according to the following equation (5):
Wherein the content of the first and second substances,curve showing the shape of the fourth arc de, R the radius of the transmission gear, L5Denotes the distance, theta, from the fifth end e to the center of the drive gear4representing the included angle between the tangent at the fourth end point d and the tangent at the third end point c in the third arc line;
The shape of the fourth arc between the fifth end point e and the sixth end point f is determined according to the following equation (6):
Where ζ represents the shape curve of the fifth arc ef and R represents the transmission gearradius, L5Denotes the distance, theta, from the fifth end e to the center of the drive gear1and D represents the perimeter of the transmission gear, and pi is the circumferential rate and has a value of 3.14.
In the use process of the ox horn insert processing device, the transmission gear 5 and the rack are in continuous back-and-forth contact, so that abrasion or other faults are easily caused.
The rack 6 is meshed with the transmission gear 5, the shape of the teeth of the rack 6 is consistent with that of the transmission gear 5, the upper end of the rack 6 is connected with a motor, the motor is used for providing power, driving the rack 6 to move up and down, and driving the transmission gear 5 to rotate at the same time, so that the discharge copper bus 4 is driven to rotate.
The pressing sheet 7 is arranged between the rack 6 and the motor, and the pressing sheet 7 is synthesized by rubber, steel and plastics, so that the damping effect can be effectively achieved, and the whole processing device is more stable.
The rotating shaft 8 is made of S50C steel, and has excellent wear resistance and low ductility.
the mounting groove 9 is located at the joint of the base 1 and the vertical groove of the first fixing block 2, and is used for mounting the rack 6, and it is understood that the shape of the mounting groove 9 is not limited as long as the mounting of the rack 6 can be satisfied.
according to the ox horn insert machining device, the transmission gear 5 converts linear motion of the rack driven by the motor into rotary motion, the ox horn-shaped discharge copper rod 4 is indirectly driven, so that pressure loss can be effectively reduced, the tooth form of the transmission gear is limited, and the service lives of the transmission gear 5 and the rack 6 can be effectively prolonged.
so far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A processing device for a bullhorn insert is characterized by comprising,
the base is used for supporting and fixing the ox horn insert processing device;
A first fixed block and a second fixed block are respectively embedded above the base;
the device comprises a first fixing block, a second fixing block, a discharging copper male and a pulse sensor, wherein the first fixing block is used for fixing the first fixing block and the second fixing block, the second fixing block is used for fixing the second fixing block, the discharging copper male is used for machining parts, and the surface of the discharging copper male is provided with the first temperature sensor used for monitoring the surface temperature of the discharging copper male in real time and the pulse sensor used for monitoring the pulse width of the discharging copper male in real time;
The rotating shaft penetrates through the first fixing block and the second fixing block, the discharging copper is fixedly connected with the rotating shaft between the first fixing block and the second fixing block and used for realizing the rotating motion of the discharging copper, and a second temperature sensor is arranged on the surface of the rotating shaft and used for monitoring the temperature of the surface of the rotating shaft in real time;
the rack is meshed with the transmission gear, the upper end of the rack is connected with a motor, and the motor is used for providing power;
a pressing sheet is arranged between the rack and the motor and used for ensuring the precision of the processed part;
The joint of the base and the vertical groove of the first fixed block is provided with a mounting groove for mounting the rack
The cooling device is sleeved on the rotating shaft between the first fixing block and the second fixing block and is respectively connected with the first temperature sensor, the second temperature sensor and the pulse sensor so as to cool the discharging copper bus and the rotating shaft according to the temperature and pulse information of the discharging copper bus and the rotating shaft;
The cooling device includes: the refrigeration semiconductor is arranged in the stainless steel shell, is of an annular structure, is sleeved on the outer surface of the rotating shaft and is used for cooling the discharge copper bus and the rotating shaft;
The refrigeration semiconductor is connected with a single chip microcomputer, and the single chip microcomputer is connected with the first temperature sensor and the second temperature sensor and used for acquiring temperature information of the discharge copper bus and the rotating shaft;
The single chip microcomputer is also connected with a temperature switch, the temperature switch can be automatically switched on or off according to temperature change and is used for automatically controlling the cooling device, and the cooling device also comprises a power supply which is connected with the single chip microcomputer and is used for supplying power to the whole cooling device;
When the temperature switch senses that the temperature of the discharging copper collector is higher than 40 ℃, the temperature switch is automatically closed, the cooling device starts to operate, the first temperature sensor and the second temperature sensor respectively detect the surface temperatures of the discharging copper collector and the rotating shaft in real time, the pulse sensor detects the pulse width of the discharging copper collector in real time and transmits a value to the single chip microcomputer.
2. the ox horn insert processing device according to claim 1, wherein the single chip microcomputer controls the refrigerating temperature of the refrigerating semiconductor according to the following formula (1):
Wherein T represents the refrigeration temperature of the refrigeration semiconductor, T1indicating the surface temperature, t, of the discharge copper electrode measured by the first temperature sensor2indicating that a second temperature sensor measures the surface temperature, t, of the rotating shaft0indicating a preset temperature, t0the value of (1) is 25, and s represents the pulse width of the discharge copper electrode measured by the pulse sensor.
3. The bovine horn insert machining apparatus according to claim 1 or 2, wherein the tooth shape of the transmission gear is defined according to the following formula:
the tooth-shaped curve of the transmission gear consists of a first arc ab, a second arc bc, a third arc cd, a fourth arc de and a fifth arc ef;
The shape of a first arc between the first end point a and the second end point b of the transmission gear is determined according to the following formula (2):
Where α represents the shape curve of the first arc ab, R represents the radius of the drive gear, and θ1represents the included angle between the straight line from the end point a to the center of the transmission gear and the straight line from the end point e to the center of the transmission gear, L1the distance from the end point b to the center of the transmission gear is shown;
The shape of the second arc between the second end point b and the third end point c is determined according to the following equation (3):
where β represents the shape curve of the second arc bc, R represents the radius of the drive gear, and θ2Representing a tangent at said second end point b in the first arc with said first end pointangle of tangent line at a, L1denotes the distance, L, from the second end b to the center of the drive gear2The distance from the third end point c to the center of the transmission gear is shown;
The shape of the third arc between the third end point c and the fourth end point d is determined according to the following equation (4):
Where γ denotes a shape curve of the third arc cd, R denotes a radius of the transmission gear, and θ3Represents the angle between the tangent at said third end point c and the tangent at said second end point b in the second arc, L3denotes the distance, L, from the third end point c to the center of the drive gear4the distance from the fourth end point d to the center of the transmission gear is shown;
the shape of the fourth arc between the fourth end point d and the fifth end point e is determined according to the following equation (5):
Wherein the content of the first and second substances,Curve showing the shape of the fourth arc de, R the radius of the transmission gear, L5Denotes the distance, theta, from the fifth end e to the center of the drive gear4Representing the included angle between the tangent at the fourth end point d and the tangent at the third end point c in the third arc line;
the shape of the fourth arc between the fifth end point e and the sixth end point f is determined according to the following equation (6):
where ζ represents the shape curve of the fifth arc ef, R represents the radius of the transmission gear, L5Denotes the distance, theta, from the fifth end e to the center of the drive gear1represents the endpoints a toand an included angle between a straight line at the center of the transmission gear and a straight line from the end point f to the center of the transmission gear, D represents the perimeter of the transmission gear, and pi is the circumferential rate and takes the value of 3.14.
4. The ox horn insert processing apparatus according to claim 3, wherein the material of the first fixing block and the second fixing block is phenolic plastic.
5. the bovine horn insert processing apparatus according to claim 1, wherein the discharge copper is used for cavity processing of a mold and has a shape of a bovine horn; the first fixing block and the second fixing block are respectively a rectangular thick plate and are vertically embedded into the base.
6. The ox horn insert processing apparatus according to claim 1, wherein the transmission gear is sleeved on the rotating shaft to drive the rotating shaft to rotate.
7. The bovine horn insert processing apparatus according to claim 1, wherein the rack is engaged with the transmission gear, and a tooth shape of the rack is identical to a shape of the transmission gear.
8. The bovine horn insert processing apparatus according to claim 1, wherein the pressing plate is disposed between the rack and the motor, and the pressing plate is composed of rubber, steel and plastic.
9. the bovine horn insert machining apparatus according to claim 1, wherein the rotating shaft is made of S50C steel.
10. A method of machining a part using the bovine horn insert machining apparatus according to any one of claims 1 to 9, comprising the steps of, when machining a part using the bovine horn insert machining apparatus:
Step 1, connecting a pressing sheet with a rack and a motor;
Step 2, fixing the discharge copper pin on a rotating shaft between a first fixed block and a second fixed block;
Step 3, starting a motor, driving a rack to move up and down by the motor, meshing the rack with a transmission gear, converting linear motion into rotary motion, and driving a discharging copper male to rotate;
And 4, the discharge copper is contacted with the part to be processed when rotating, and the process current is generated to process the part so as to achieve the required processing effect.
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| CN201910341000.0A CN109940232B (en) | 2019-04-25 | 2019-04-25 | ox horn insert processing device |
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| CN201910341000.0A CN109940232B (en) | 2019-04-25 | 2019-04-25 | ox horn insert processing device |
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| CN109940232B true CN109940232B (en) | 2019-12-10 |
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| CN110253230A (en) * | 2019-07-16 | 2019-09-20 | 深圳市隆利科技股份有限公司 | A kind of processing method of light guide plate sawtooth mold insert |
Citations (4)
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|---|---|---|---|---|
| CN203543009U (en) * | 2013-10-22 | 2014-04-16 | 苏州华纳精密模具有限公司 | Non-line-mark type horn gate injection mould |
| CN104128679A (en) * | 2014-07-17 | 2014-11-05 | 上海工程技术大学 | Tooth surface forming machining technique for open spiral structure |
| CN207372460U (en) * | 2017-08-07 | 2018-05-18 | 华讯方舟科技（湖北）有限公司 | Mold processing is public with copper |
| WO2019050110A1 (en) * | 2017-09-05 | 2019-03-14 | 한화에어로스페이스(주) | Component hole machining method |
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2019
- 2019-04-25 CN CN201910341000.0A patent/CN109940232B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203543009U (en) * | 2013-10-22 | 2014-04-16 | 苏州华纳精密模具有限公司 | Non-line-mark type horn gate injection mould |
| CN104128679A (en) * | 2014-07-17 | 2014-11-05 | 上海工程技术大学 | Tooth surface forming machining technique for open spiral structure |
| CN207372460U (en) * | 2017-08-07 | 2018-05-18 | 华讯方舟科技（湖北）有限公司 | Mold processing is public with copper |
| WO2019050110A1 (en) * | 2017-09-05 | 2019-03-14 | 한화에어로스페이스(주) | Component hole machining method |
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