CN108672964B - Automatic control device and automatic control method for electric spark deposition surfacing contact force - Google Patents
Automatic control device and automatic control method for electric spark deposition surfacing contact force Download PDFInfo
- Publication number
- CN108672964B CN108672964B CN201810753442.1A CN201810753442A CN108672964B CN 108672964 B CN108672964 B CN 108672964B CN 201810753442 A CN201810753442 A CN 201810753442A CN 108672964 B CN108672964 B CN 108672964B
- Authority
- CN
- China
- Prior art keywords
- automatic control
- sliding table
- contact force
- adjusting unit
- electrode head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000008021 deposition Effects 0.000 title claims abstract description 41
- 238000010892 electric spark Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims description 35
- 239000000758 substrate Substances 0.000 claims abstract description 46
- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 238000004891 communication Methods 0.000 claims abstract description 10
- 230000006698 induction Effects 0.000 claims abstract description 10
- 238000003466 welding Methods 0.000 claims description 15
- 230000003750 conditioning effect Effects 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims description 3
- 238000000151 deposition Methods 0.000 description 31
- 230000008569 process Effects 0.000 description 14
- 239000011159 matrix material Substances 0.000 description 13
- 230000001276 controlling effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 101100156949 Arabidopsis thaliana XRN4 gene Proteins 0.000 description 1
- 101100215777 Schizosaccharomyces pombe (strain 972 / ATCC 24843) ain1 gene Proteins 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Resistance Welding (AREA)
Abstract
An automatic control device for the contact force of an electric spark deposition surfacing comprises an actuating mechanism for driving an electrode head to be in contact with a substrate, an induction mechanism arranged between the actuating mechanism and the electrode head, and a control mechanism electrically connected with the induction mechanism and in control connection with the actuating mechanism; the actuating mechanism comprises a cross sliding table, the plane of the cross sliding table is vertical to the substrate, and the cross sliding table is in driving connection with an angle adjusting unit for clamping the electrode head; the induction mechanism comprises a pulling pressure sensor fixedly arranged between the cross sliding table and the angle adjusting unit; the control mechanism comprises a single chip microcomputer, the single chip microcomputer is electrically connected with the tension pressure sensor, the single chip microcomputer is in control connection with the cross sliding table through an output driving interface, and the single chip microcomputer is in communication connection with an upper computer through a communication interface. The invention can automatically control the contact force between the moving electrode head and the fixed substrate in real time, and can also automatically compensate the deviation of the deposition position caused by the consumption of the electrode head.
Description
Technical Field
The invention relates to the technical field of electric spark deposition surfacing, in particular to an automatic control device and an automatic control method for electric spark deposition surfacing contact force.
Background
The working principle of the electric spark deposition surfacing technology is as follows: when the electrode contacts with the matrix, the circuit is in a short circuit state, the power supply outputs discharge pulse, and extremely large current density is generated in a small area range of the contact point of the electrode and the matrix, so that the electrode and the matrix material at the contact point are instantaneously melted and gasified, spark discharge is initiated, the melted material part of the electrode is transited to the surface of the matrix, if the electrode is continuously close to the matrix, the matrix is extruded along with mechanical force, so that the melted material of the electrode is firmly adhered to the surface of the matrix material, and the compactness of the alloy layer is improved. The discharge process of the electric spark deposition surfacing welding is finished instantaneously, so that the matrix can not generate heat diffusion and thermal deformation, has the advantages of small heat input quantity, no heating of the matrix and the like, and can be widely applied to precise repair of defects and small-area damage of equipment such as a die, a motor spindle and the like, and also can be applied to surface strengthening and modification treatment of parts. The repair and reuse of worn parts and the like belongs to regeneration manufacture, and a large amount of equipment maintenance cost is saved.
The discharge voltage of the electric spark deposition build-up welding is low, and the electric spark is mainly generated by contact discharge. Whether rotating electrode or vibrating electrode spark deposition, the electrode needs to be in contact with the substrate to generate spark discharge. In the process of electric spark deposition surfacing, the electrode and the substrate need to be in continuous contact, when the contact force is large, the contact area of the electrode and the substrate contact point is increased, the current density is reduced, micro-arc cannot be formed by breakdown, and the generated electric spark is less; when the contact force is smaller, the contact area of the electrode and the contact point of the substrate is smaller, the current density is larger, larger electric spark is easy to generate, larger arc pits are formed, and larger splashing is caused; therefore, the magnitude of the contact force between the electrode and the substrate directly affects the form of the spark discharge and the efficiency of the mass transition, and thus the quality of the deposited weld overlay.
When the electrode is manually operated to perform electric spark deposition surfacing, the contact force between the electrode and the substrate cannot be ensured, so that the spark discharge is unstable, the quality of a deposition surfacing layer cannot be ensured, the electric spark deposition efficiency is low, the speed is low, the operation time is long, and the manual operation is easy to fatigue, so that an automatic electric spark deposition surfacing system is a necessary development direction. In the automated operation of the electro-discharge deposition build-up welding, the electrodes are operated by a robot or other mechanical mechanism, but the contact force between the electrodes and the substrate needs to be controlled independently and automatically, and no such technology and equipment is currently available. In general, when performing electro-discharge deposition build-up welding, the electrode axis is at an angle to the plane of the substrate, not perpendicular, so that when the electrode becomes shorter due to consumption, the position of the contact point between the electrode and the substrate also changes, and compensation for this position change is also required.
There is no device capable of automatically adjusting the magnitude and position of the contact force in the prior art.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides an automatic control device and an automatic control method for the electric spark deposition surfacing welding contact force, which can automatically control the contact force between a moving electrode head and a fixed substrate in real time and automatically compensate the deviation of a deposition position caused by the consumption of the electrode head.
In order to achieve the above purpose, the invention adopts the following specific scheme: an automatic control device for the contact force of an electric spark deposition surfacing comprises an actuating mechanism for driving an electrode head to be in contact with a substrate, an induction mechanism arranged between the actuating mechanism and the electrode head, and a control mechanism electrically connected with the induction mechanism and in control connection with the actuating mechanism; the actuating mechanism comprises a cross sliding table, the plane of the cross sliding table is vertical to the base body, and the cross sliding table is in driving connection with an angle adjusting unit for clamping the electrode head; the induction mechanism comprises a tension pressure sensor fixedly arranged between the cross sliding table and the angle adjusting unit; the control mechanism comprises a single chip microcomputer, the single chip microcomputer is electrically connected with the tension pressure sensor, the single chip microcomputer is in control connection with the cross sliding table through an output driving interface, and the single chip microcomputer is in communication connection with an upper computer through a communication interface.
The cross sliding table comprises a horizontal adjusting unit and a vertical adjusting unit, wherein the horizontal adjusting unit and the vertical adjusting unit are respectively provided with a fixed bottom plate, a stepping motor and two parallel smooth guide rails are fixedly arranged on the fixed bottom plates, the output shaft of the stepping motor is coaxially and fixedly connected with a ball screw, the ball screw is positioned between the two smooth guide rails and is parallel to the smooth guide rails, a sliding table is sleeved on the ball screw in a matched manner, the sliding table is in sliding connection with the smooth guide rails, the fixed bottom plate of the vertical adjusting unit is fixedly connected with the sliding table of the horizontal adjusting unit, and the tension pressure sensor is fixedly connected with the sliding table of the vertical adjusting unit; the two stepping motors are electrically connected with the output driving interface through a driver respectively.
The utility model discloses a pull pressure sensor, including perpendicular adjusting unit, perpendicular adjusting unit's slip table is last fixedly connected with L template, and L template includes perpendicular part and the horizontal part of an organic whole connection, still is provided with the strengthening rib between perpendicular part and the horizontal part, perpendicular part and perpendicular adjusting unit's slip table fixed connection, horizontal part fixedly connected with connecting plate, pull pressure sensor and connecting plate fixed connection.
The angle adjusting unit comprises a U-shaped plate and a T-shaped connecting cylinder, wherein the U-shaped plate is fixedly connected with the tension pressure sensor, the T-shaped connecting cylinder is composed of an integrally connected mounting cylinder and a connecting cylinder, the connecting cylinder is rotatably arranged between two side walls of the U-shaped plate, and the electrode tip is fixedly arranged on the mounting cylinder.
The welding gun is fixedly arranged in the mounting cylinder in a penetrating mode, and the electrode tip is fixedly arranged on the welding gun.
The ball screw penetrates through the two end plates in sequence, and a limit switch is fixedly arranged on each of the two end plates and is oppositely arranged.
The singlechip is also electrically connected with a keyboard and a display screen.
The singlechip is electrically connected with the pulling pressure sensor sequentially through the signal conditioning circuit and the transmitter.
The automatic control method of the automatic control device for the electric spark deposition surfacing contact force comprises the following steps:
Step 1, the cross sliding table pushes the electrode head to move downwards to be in contact with the substrate;
Step 2, the tension pressure sensor detects the contact force between the substrate and the electrode tip, and transmits contact force data to the singlechip;
Step 3, the singlechip compares the contact force data with a set value, if the contact force data is larger than the set value, the step 4 is executed, if the contact force data is smaller than the set value, the step 5 is executed, and if the contact force data is equal to the set value, the step 3 is executed again without action;
Step 4, the singlechip controls the cross sliding table to push the electrode head to move upwards, and then step 6 is carried out;
Step5, the singlechip controls the cross sliding table to push the electrode tip to move downwards, and then step 7 is carried out;
Step 6, calculating a compensation distance in the horizontal direction by the singlechip through the upward moving distance of the electrode head, controlling the cross sliding table to push the electrode head to move horizontally, and re-executing the step 3;
And 7, calculating the compensation distance in the horizontal direction by the singlechip through the downward moving distance of the electrode head, controlling the cross sliding table to push the electrode head to move horizontally, and re-executing the step 3.
The beneficial effects are that: the invention can automatically control the contact force between the moving electrode head and the fixed matrix in real time, and can automatically compensate the deviation of the deposition position caused by the consumption of the electrode head, thereby ensuring the accuracy of the contact position between the electrode head and the matrix, and further ensuring the stable output of electric spark, the stable quality of the deposition surface and the uniform thickness of the deposition layer in the automatic process of electric spark deposition overlaying.
Drawings
FIG. 1 is a schematic view of the overall structure of an automatic control device of the present invention;
FIG. 2 is a schematic diagram of the structure of the actuator and sensing structure of the present invention;
FIG. 3 is a block diagram of the control mechanism of the present invention;
Fig. 4 is a schematic diagram of the contact position compensation process of the present invention.
Reference numerals: the welding machine comprises a 1-stepper motor, a 2-coupler, a 3-limit switch, a 4-smooth guide rail, a 5-ball screw, a 6-sliding table, 7-reinforcing ribs, an 8-L-shaped plate, a 9-connecting plate, a 10-fixed bottom plate, an 11-tension pressure sensor, a 12-U-shaped plate, a 13-T-shaped connecting cylinder, a 14-welding gun, a 15-electrode head, a 16-substrate and a 17-end plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 3, fig. 1 is a schematic diagram of the overall structure of the automatic control device of the present invention, fig. 2 is a schematic diagram of the structure of the actuator and the sensing structure of the present invention, and fig. 3 is a block diagram of the structure of the control mechanism of the present invention.
An automatic control device for the contact force of an electric spark deposition surfacing comprises an actuating mechanism for driving an electrode head 15 to be in contact with a substrate 16, a sensing mechanism arranged between the actuating mechanism and the electrode head 15, and a control mechanism electrically connected with the sensing mechanism and in control connection with the actuating mechanism. Wherein the sensing means is used for sensing the contact force between the electrode head 15 and the substrate 16, the control means is used for acquiring the contact force from the sensing means and controlling the movement of the actuator according to the contact force, and the actuator is used for moving under the control of the control means to change the contact force and the contact position between the electrode head 15 and the substrate 16.
The actuating mechanism comprises a cross sliding table, the plane of the cross sliding table is perpendicular to the substrate 16, the cross sliding table is in driving connection with an angle adjusting unit for clamping the electrode head 15, and the angle adjusting unit is used for adjusting the included angle between the electrode head 15 and the substrate 16.
The induction mechanism comprises a pulling pressure sensor 11 fixedly arranged between the cross sliding table and the angle adjusting unit, the pulling pressure sensor 11 is a pulling pressure sensor with the model number of AT8202, and the measuring range is 20N.
The control mechanism comprises a single chip microcomputer, the single chip microcomputer selects an ADuC824 single chip microcomputer, the single chip microcomputer is electrically connected with the tension pressure sensor 11, the single chip microcomputer is in control connection with the cross sliding table through an output driving interface, the single chip microcomputer is in communication connection with an upper computer through a communication interface, and the communication interface selects a MAX232 chip set.
In the process of electric spark deposition surfacing, the contact force can be generated by the mutual contact of the electrode head 15 driven by the cross sliding table and the matrix 16, the contact force can be collected by the tension pressure sensor 11, and after the contact force is transmitted to the singlechip, the singlechip can analyze the contact force. If the current contact force is too large, the singlechip can drive the electrode head 15 to move in a direction away from the substrate 16 by controlling the cross sliding table, so that the contact force is reduced; if the current contact force is too small, the singlechip can drive the electrode head 15 to move towards the substrate 16 by controlling the cross sliding table, so that the contact force is increased; if the current contact force is appropriate, the electro-discharge deposition build-up welding can be performed normally. The singlechip can also transmit the contact force and control data for the cross sliding table to the upper computer through the communication interface for relevant personnel to check, and the relevant personnel can also transmit control instructions to the singlechip through the upper computer, so that manual adjustment for the cross sliding table is realized.
Referring to fig. 4, fig. 4 is a schematic diagram of the contact position compensation process according to the present invention. In the process of depositing and overlaying by electric spark, the electrode tip 15 is worn, so that the contact force between the electrode tip 15 and the substrate 16 is continuously reduced, the electrode tip 15 is required to be continuously moved towards the substrate 16, and the contact position between the electrode tip 15 and the substrate 16 is changed due to the fact that an included angle is formed between the electrode tip 15 and the substrate 16, when the electrode is displaced in the vertical direction, the contact point between the electrode and the substrate is offset by deltax in the horizontal direction, the deltax can be calculated by the singlechip according to the included angle between the electrode tip 15 and the substrate 16 and deltaz, and further, the movement of the electrode tip 15 can be controlled by controlling the cross sliding table, so that the compensation of the change of the contact position is realized, and the stability of the contact position between the electrode tip 15 and the substrate 16 is ensured, and the stability of the whole overlaying process is ensured.
In summary, the invention can automatically control the contact force between the moving electrode head 15 and the fixed substrate 16 in real time, and can automatically compensate the deviation of the deposition position generated by the consumption of the electrode head 15, thereby ensuring the accuracy of the contact position between the electrode head 15 and the substrate 16, and further ensuring the stable output of electric spark, the stable quality of the deposition surface and the uniform thickness of the deposition layer in the automatic process of electric spark deposition surfacing.
In the case that the substrate 16 is horizontally arranged, the contact force is compensated by moving the electrode head 15 to enable the electrode head 15 to approach or separate from the substrate 16, and the contact position is compensated by moving the electrode head 15 to enable the electrode head 15 to move along the substrate 16, so that the cross sliding table only needs to control the electrode head 15 to move in the vertical direction and the horizontal direction, the cross sliding table is arranged to comprise a horizontal adjusting unit and a vertical adjusting unit, the horizontal adjusting unit and the vertical adjusting unit are respectively provided with a fixed bottom plate 10, the fixed bottom plate 10 is fixedly provided with a stepping motor 1 and two parallel beam guide rails 4, an output shaft of the stepping motor 1 is coaxially and fixedly connected with a ball screw 5 through a coupler 2, the ball screw 5 is positioned between the two beam guide rails 4 and is parallel to the beam guide rails 4, a sliding table 6 is sleeved on the ball screw 5 in a matched mode, the sliding table 6 is in sliding connection with the beam guide rails 4, the fixed bottom plate 10 of the vertical adjusting unit is fixedly connected with the sliding table 6 of the horizontal adjusting unit, and the tension pressure sensor 11 is fixedly connected with the sliding table 6 of the vertical adjusting unit; the two stepping motors 1 are respectively and electrically connected with an output driving interface through a driver, and the output driving interface is selected as an optical coupling isolation driving circuit. When the contact force between the electrode head 15 and the substrate 16 is regulated, the single chip microcomputer drives the stepping motor 1 of the vertical regulating unit to operate, the stepping motor 1 drives the ball screw 5 of the vertical regulating unit to rotate, so that the sliding table 6 of the vertical regulating unit is driven to move in the vertical direction, the smooth guide rail 4 is used for limiting the direction of the sliding table 6, and finally the electrode head 15 is driven to be close to or far away from the substrate 16 sequentially through the pull pressure sensor 11 and the angle regulating unit; when the contact position between the electrode head 15 and the substrate 16 is adjusted, the stepping motor 1 of the horizontal adjusting unit operates, so that the ball screw 5 of the horizontal adjusting unit is driven to rotate, the sliding table 6 of the horizontal adjusting unit is further pushed to move, the vertical adjusting unit is driven to integrally move, and finally the electrode head 15 is driven to move along the substrate 16 through the vertical adjusting unit. The present invention decomposes the adjustment process of the electrode head 15 into the position adjustment process in the vertical direction and the horizontal direction, thereby reducing the complexity of the automatic control device and the automatic control process. In other embodiments of the invention, the combination of the stepper motor 1 and the ball screw 5 may be replaced by other linear output devices, such as a pneumatic or hydraulic cylinder.
The specific connection mode of the pull pressure sensor 11 and the vertical adjusting unit is as follows: fixedly connected with L template 8 on perpendicular adjusting unit's the slip table 6, for the connection of convenient L template 8 and slip table 6, the linear module of KKM60 can directly be selected for use to smooth guide rail 4, ball 5 and slip table 6 three parts. The L-shaped plate 8 comprises a vertical part and a horizontal part which are integrally connected, and a reinforcing rib 7 is further arranged between the vertical part and the horizontal part, and the reinforcing rib 7 enables the L-shaped plate 8 to increase supporting rigidity and strength, so that stable operation is ensured. The vertical part is fixedly connected with the sliding table 6 of the vertical adjusting unit, the horizontal part is fixedly connected with the connecting plate 9, and the tension and pressure sensor 11 is fixedly connected with the connecting plate 9.
The angle adjusting unit comprises a U-shaped plate 12 and a T-shaped connecting cylinder 13, wherein the U-shaped plate 12 is fixedly connected with the tension and pressure sensor 11, the T-shaped connecting cylinder 13 is composed of an integrally connected mounting cylinder and a connecting cylinder, the connecting cylinder is rotatably arranged between two side walls of the U-shaped plate 12, a welding gun 14 is fixedly arranged in the mounting cylinder in a penetrating manner, and an electrode tip 15 is fixedly arranged on the welding gun 14. Before the surfacing operation, the welding gun 14 can be rotated to drive the electrode tip 16 to rotate to adjust the angle between the electrode tip 15 and the substrate 16, so as to meet the requirements of different surfacing conditions.
The fixed bottom plate 10 is further fixedly provided with two end plates 17, the two end plates 17 are parallel to each other and are perpendicular to the fixed bottom plate 10, the two smooth guide rails 4 are fixedly arranged between the two end plates 17, the ball screw 5 sequentially penetrates through the two end plates 17, the two end plates 17 are fixedly provided with a limit switch 3 respectively, the two limit switches 3 are oppositely arranged, when the distance between the sliding table 6 and the limit switch 3 is reduced to a certain degree, the limit switch 3 triggers and the stepping motor 1 automatically stops running, so that the situation that the horizontal adjusting unit and the vertical adjusting unit are damaged due to excessive adjustment in the adjusting process is avoided.
The singlechip is also electrically connected with a keyboard and a display screen. The keyboard is used for inputting a set value of the contact force into the singlechip, the singlechip can be compared with the set value when judging the current contact force, the keyboard can also be used for manually controlling starting and stopping, and the keyboard can be a matrix keyboard and is connected with the ADuC824 singlechip through a P2 port; the display screen is used for displaying state parameters in the surfacing process of current contact force data and the like, the display screen can adopt an integrally packaged 8-bit 8-section liquid crystal display module LCM0825, and the display screen is connected with an ADuC824 singlechip through a P3 port for operators to check.
The singlechip is electrically connected with the tension and pressure sensor through the signal conditioning circuit and the transmitter in sequence. The transducer converts the physical quantity measured by the tension and pressure sensor 11 into an electric signal of 4-20mA and outputs the electric signal to the signal conditioning circuit; the signal conditioning circuit converts the received electric signal into a voltage signal of 1-5V, the voltage signal is connected to the AIN1 end of the analog input interface of the ADuC824 singlechip after being filtered, and the ADuC824 singlechip performs AD sampling to finally obtain the digital quantity of the contact force.
Based on the automatic control device, the invention also provides an automatic control method of the automatic control device for the electric spark deposition surfacing contact force, which comprises the steps 1 to 7.
Step 1, the electrode tip 15 is pushed by the cross sliding table to move downwards to be in contact with the substrate 16.
And 2, the tension and pressure sensor 11 detects the contact force between the substrate 16 and the electrode head 15 and transmits the contact force data to the singlechip.
And step 3, the singlechip compares the contact force data with a set value, if the contact force data is larger than the set value, the step 4 is executed, if the contact force data is smaller than the set value, the step 5 is executed, and if the contact force data is equal to the set value, the step 3 is executed again without action.
And step 4, the singlechip controls the cross sliding table to push the electrode head 15 to move upwards, and then step 6 is carried out.
And step 5, the singlechip controls the cross sliding table to push the electrode head 15 to move downwards, and then step 7 is carried out.
And 6, calculating the compensation distance in the horizontal direction by the singlechip through the upward moving distance of the electrode head 15, controlling the cross sliding table to push the electrode head 15 to move horizontally, and re-executing the step 3.
And 7, calculating the compensation distance in the horizontal direction by the singlechip through the downward moving distance of the electrode head 15, controlling the cross sliding table to push the electrode head 15 to move horizontally, and re-executing the step 3.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. An automatic control method of an automatic control device for the electric spark deposition surfacing contact force, wherein the automatic control device for the electric spark deposition surfacing contact force comprises an actuating mechanism for driving an electrode head (15) to be in contact with a substrate (16), an induction mechanism arranged between the actuating mechanism and the electrode head (15), and a control mechanism electrically connected with the induction mechanism and in control connection with the actuating mechanism;
the actuating mechanism comprises a cross sliding table, the plane of the cross sliding table is perpendicular to the base body (16), and the cross sliding table is in driving connection with an angle adjusting unit for clamping the electrode head (15);
The induction mechanism comprises a pulling pressure sensor (11) fixedly arranged between the cross sliding table and the angle adjusting unit; the control mechanism comprises a single chip microcomputer, the single chip microcomputer is electrically connected with the tension pressure sensor (11), the single chip microcomputer is in control connection with the cross sliding table through an output driving interface, and the single chip microcomputer is in communication connection with an upper computer through a communication interface; the singlechip can compare the contact force data detected by the tension pressure sensor with a set value, and judge whether the sliding table is controlled to push the electrode tip to move according to a comparison result;
The cross sliding table comprises a horizontal adjusting unit and a vertical adjusting unit, wherein the horizontal adjusting unit and the vertical adjusting unit are respectively provided with a fixed bottom plate (10), a stepping motor (1) and two parallel smooth guide rails (4) are fixedly arranged on the fixed bottom plate (10), a ball screw (5) is coaxially and fixedly connected with an output shaft of the stepping motor (1), the ball screw (5) is positioned between the two smooth guide rails (4) and is parallel to the smooth guide rails (4), a sliding table (6) is sleeved on the ball screw (5) in a matched mode, the sliding table (6) is in sliding connection with the smooth guide rails (4), the fixed bottom plate (10) of the vertical adjusting unit is fixedly connected with the sliding table (6) of the horizontal adjusting unit, and the tension pressure sensor (11) is fixedly connected with the sliding table (6) of the vertical adjusting unit;
The two stepping motors (1) are respectively and electrically connected with the output driving interface through a driver;
The method is characterized in that: the automatic control method comprises the following steps:
step 1, the cross sliding table pushes the electrode tip (15) to move downwards to be in contact with the substrate (16);
Step 2, the tension pressure sensor (11) detects the contact force between the substrate (16) and the electrode head (15), and transmits the contact force data to the singlechip;
Step 3, the singlechip compares the contact force data with a set value, if the contact force data is larger than the set value, the step 4 is executed, if the contact force data is smaller than the set value, the step 5 is executed, and if the contact force data is equal to the set value, the step 3 is executed again without action;
Step 4, the singlechip controls the cross sliding table to push the electrode head (15) to move upwards, and then step 6 is carried out;
step 5, the singlechip controls the cross sliding table to push the electrode head (15) to move downwards, and then step 7 is carried out;
Step 6, calculating a compensation distance in the horizontal direction by the singlechip through the upward moving distance of the electrode head (15), controlling the cross sliding table to push the electrode head (15) to move horizontally, and re-executing the step 3;
and 7, calculating the compensation distance in the horizontal direction by the singlechip through the downward moving distance of the electrode head (15), controlling the cross sliding table to push the electrode head (15) to move horizontally, and re-executing the step 3.
2. The automatic control method of the automatic control device for the electric spark deposition surfacing contact force according to claim 1, wherein the automatic control method comprises the following steps: the utility model discloses a vertical pressure sensor, including perpendicular adjusting unit, slip table (6) of perpendicular adjusting unit is last fixedly connected with L template (8), and L template (8) are including perpendicular part and the horizontal part of an organic whole connection, still are provided with strengthening rib (7) between perpendicular part and the horizontal part, perpendicular part and slip table (6) fixed connection of perpendicular adjusting unit, horizontal part fixedly connected with connecting plate (9), draw pressure sensor (11) and connecting plate (9) fixed connection.
3. The automatic control method of the automatic control device for the electric spark deposition surfacing contact force according to claim 2, wherein the automatic control method comprises the following steps: the angle adjusting unit comprises a U-shaped plate (12) and a T-shaped connecting cylinder (13), wherein the U-shaped plate (12) is fixedly connected with the tension pressure sensor (11), the T-shaped connecting cylinder (13) is composed of an integrally connected mounting cylinder and a connecting cylinder, the connecting cylinder is rotatably arranged between two side walls of the U-shaped plate (12), and the electrode tip (15) is fixedly arranged on the mounting cylinder.
4. The automatic control method of the automatic control device for the electric spark deposition surfacing contact force according to claim 3, wherein the automatic control method comprises the following steps: the welding gun (14) is fixedly arranged in the mounting cylinder in a penetrating mode, and the electrode tip (15) is fixedly arranged on the welding gun (14).
5. The automatic control method of the automatic control device for the electric spark deposition surfacing contact force according to claim 1, wherein the automatic control method comprises the following steps: the fixed bottom plate (10) is further fixedly provided with two end plates (17), the two end plates (17) are parallel to each other and are perpendicular to the fixed bottom plate (10), the two light bar guide rails (4) are fixedly arranged between the two end plates (17), the ball screw (5) sequentially penetrates through the two end plates (17), and the two end plates (17) are fixedly provided with a limit switch (3) respectively, and the two limit switches (3) are oppositely arranged.
6. The automatic control method of the automatic control device for the electric spark deposition surfacing contact force according to claim 1, wherein the automatic control method comprises the following steps: the singlechip is also electrically connected with a keyboard and a display screen.
7. The automatic control method of the automatic control device for the electric spark deposition surfacing contact force according to claim 1, wherein the automatic control method comprises the following steps: the singlechip is electrically connected with the pulling pressure sensor sequentially through the signal conditioning circuit and the transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810753442.1A CN108672964B (en) | 2018-07-10 | 2018-07-10 | Automatic control device and automatic control method for electric spark deposition surfacing contact force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810753442.1A CN108672964B (en) | 2018-07-10 | 2018-07-10 | Automatic control device and automatic control method for electric spark deposition surfacing contact force |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108672964A CN108672964A (en) | 2018-10-19 |
| CN108672964B true CN108672964B (en) | 2024-05-24 |
Family
ID=63813759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810753442.1A Active CN108672964B (en) | 2018-07-10 | 2018-07-10 | Automatic control device and automatic control method for electric spark deposition surfacing contact force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108672964B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110170783A (en) * | 2018-11-13 | 2019-08-27 | 重庆市雄图机械有限公司 | A kind of automotive door hinge is without splashing special automatic welding machine |
| CN109664280A (en) * | 2018-12-27 | 2019-04-23 | 贵州大学 | A kind of control device and method of Rosa roxburghii Tratt detection system |
| CN109458932A (en) * | 2018-12-27 | 2019-03-12 | 贵州大学 | One kind is around multi-faceted Rosa roxburghii Tratt detection system |
| CN110814447B (en) * | 2019-10-24 | 2020-11-06 | 北京科技大学 | Automatic electric spark deposition device and method based on discharge signal feedback control |
| CN111168268B (en) * | 2020-02-13 | 2021-06-22 | 河南科技大学 | Electric spark deposition contact force control device with damping function |
| CN114654164A (en) * | 2022-03-28 | 2022-06-24 | 航天材料及工艺研究所 | Electric spark deposition-cold pressure welding composite repairing method |
| CN114571035B (en) * | 2022-05-06 | 2022-07-08 | 苏州思萃熔接技术研究所有限公司 | Automatic surfacing device for battery terminal |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4226697A (en) * | 1977-11-29 | 1980-10-07 | Brv "Electronna Obrabotka Na Materialite" | Apparatus for the spark deposition of metals |
| US4556775A (en) * | 1983-10-26 | 1985-12-03 | Inoue-Japax Research Incorporated | Automatic spark-depositing apparatus |
| US5302805A (en) * | 1993-05-27 | 1994-04-12 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Welding wire pressure sensor assembly |
| CN2437447Y (en) * | 2000-05-25 | 2001-07-04 | 曾维尔 | Non-contact automatic tracking adjusting device for welding |
| CN102226280A (en) * | 2011-06-13 | 2011-10-26 | 天津职业技术师范大学 | Automatic electro-spark deposition system |
| CN102660739A (en) * | 2012-05-08 | 2012-09-12 | 常州大学 | Device and method for controlling electric spark deposition energy according to pressure |
| CN103008807A (en) * | 2012-11-27 | 2013-04-03 | 上海交通大学 | Electrochemical discharge machining device and method based on force feedback control feeding system |
| CN103093033A (en) * | 2012-12-27 | 2013-05-08 | 浙江大学 | Electrical discharge machining electrode loss compensation method based on opposite-forming principle |
| CN103243288A (en) * | 2013-05-07 | 2013-08-14 | 常州大学 | Automatic double-Z-axis electric spark deposition device and method |
| CN104039502A (en) * | 2011-09-22 | 2014-09-10 | Skf公司 | In-process compensation of machining operation and machine arrangement |
| CN204893205U (en) * | 2015-08-03 | 2015-12-23 | 南昌航空大学 | High -accuracy miniature friction stir welding machine |
| CN208513883U (en) * | 2018-07-10 | 2019-02-19 | 河南科技大学 | A kind of electric spark deposition built-up welding contact force automatic control device |
-
2018
- 2018-07-10 CN CN201810753442.1A patent/CN108672964B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4226697A (en) * | 1977-11-29 | 1980-10-07 | Brv "Electronna Obrabotka Na Materialite" | Apparatus for the spark deposition of metals |
| US4556775A (en) * | 1983-10-26 | 1985-12-03 | Inoue-Japax Research Incorporated | Automatic spark-depositing apparatus |
| US5302805A (en) * | 1993-05-27 | 1994-04-12 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Welding wire pressure sensor assembly |
| CN2437447Y (en) * | 2000-05-25 | 2001-07-04 | 曾维尔 | Non-contact automatic tracking adjusting device for welding |
| CN102226280A (en) * | 2011-06-13 | 2011-10-26 | 天津职业技术师范大学 | Automatic electro-spark deposition system |
| CN104039502A (en) * | 2011-09-22 | 2014-09-10 | Skf公司 | In-process compensation of machining operation and machine arrangement |
| CN102660739A (en) * | 2012-05-08 | 2012-09-12 | 常州大学 | Device and method for controlling electric spark deposition energy according to pressure |
| CN103008807A (en) * | 2012-11-27 | 2013-04-03 | 上海交通大学 | Electrochemical discharge machining device and method based on force feedback control feeding system |
| CN103093033A (en) * | 2012-12-27 | 2013-05-08 | 浙江大学 | Electrical discharge machining electrode loss compensation method based on opposite-forming principle |
| CN103243288A (en) * | 2013-05-07 | 2013-08-14 | 常州大学 | Automatic double-Z-axis electric spark deposition device and method |
| CN204893205U (en) * | 2015-08-03 | 2015-12-23 | 南昌航空大学 | High -accuracy miniature friction stir welding machine |
| CN208513883U (en) * | 2018-07-10 | 2019-02-19 | 河南科技大学 | A kind of electric spark deposition built-up welding contact force automatic control device |
Non-Patent Citations (1)
| Title |
|---|
| 电火花铣削加工电极损耗在线补偿的实现;刘光壮等;《桂林电子工业学院学报》;第18卷(第4期);第47-49页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108672964A (en) | 2018-10-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108672964B (en) | Automatic control device and automatic control method for electric spark deposition surfacing contact force | |
| CN106112206A (en) | A kind of multi-shaft interlocked formula metal 3D printer based on arc-welding method and Method of printing | |
| CN105081544A (en) | Dual-spot welding machine | |
| CN207105641U (en) | A kind of 3D printing platform | |
| CN104625545B (en) | A kind of double robot welding positioner | |
| CN202291805U (en) | Chain flash butt welding machine | |
| CN210633099U (en) | Ultrasonic welding machine | |
| CN202240072U (en) | Special automatic welding and repairing machine for coupler knuckle of train | |
| CN210233992U (en) | Automatic flat pressing aseptic tube sealing machine | |
| CN201988841U (en) | Laser device | |
| CN206952347U (en) | A kind of bull door-plate reinforcement bonding machine | |
| CN116197544A (en) | Laser processing equipment capable of switching marking range and focusing method thereof | |
| CN212070768U (en) | Four-welding-spot welding head mechanism of junction box welding machine | |
| CN107414275A (en) | A kind of precision resistance mash welder and its resistance spot-welding servo system | |
| CN205736358U (en) | A kind of solar battery sheet scraper for silk-screen printing device | |
| CN202097485U (en) | Radiator assembling machine based on PLC (programmable logic controller) | |
| CN102085594B (en) | Automatic netting four-taper-sleeve welding machine and automatic welding method thereof | |
| CN209420045U (en) | A kind of liquid crystal module and backlight FPC welder | |
| CN114131144A (en) | Welding real-time arc voltage control system and control method thereof | |
| CN106825888A (en) | A kind of semi-automatic flash butt welding temperature measurement on-line variable frequency drive control system | |
| CN108620709A (en) | A kind of mash welder | |
| CN219240165U (en) | Electronic pendulum level adjustment device | |
| JP3821548B2 (en) | Servo press slide position setting method | |
| CN207447588U (en) | A kind of semi-automatic welding machine | |
| CN220679257U (en) | Automatic riveter of blade |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |