CN217493026U - Double-shaft linkage multi-point-position intelligent numerical control spot welding machine - Google Patents

Abstract

The utility model provides a double-shaft linkage multi-point intelligent numerical control spot welding machine, which comprises a base, a welding frame and a movable platform group, wherein the welding frame and the movable platform group are respectively fixed at two ends of the base; an upper support arm and a lower support arm are transversely arranged on one side, close to the moving platform set, of the welding machine frame, an upper welding electrode and a lower welding electrode which are opposite in position are respectively arranged on the upper support arm and the lower support arm, and a component to be welded is placed on the moving platform set; the moving platform group comprises an X-axis moving platform, a Y-axis moving platform and a lifting platform which are sequentially arranged from bottom to top. The utility model discloses on being fixed in the base with welding frame and moving platform group, make spot welder reach the high integration, through setting up X axle moving platform, Y axle moving platform and lift platform, can drive according to predetermineeing the orbit and treat that the welding member carries out automatic shifting, convenient operation, positioning accuracy is high.

Description

Double-shaft linkage multi-point-position intelligent numerical control spot welding machine

Technical Field

The utility model belongs to the technical field of spot welding equipment, a multiple spot position intelligence numerical control spot welder of biax linkage is related to.

Background

In the assembling process of the fields of household electrical appliances, office stationery, low-voltage electrical appliance products, building industry and the like, spot welding is the most common connecting means, and therefore, in the assembling process of the products, spot welding is the most basic process. In the traditional assembly process, the product is spot-welded manually, and the original manual operation mode needs more assembly personnel, so that the labor efficiency is low, the product is low, the operation is inconsistent, and the product quality cannot be guaranteed.

With the development of society and the progress of science and technology, people utility model have adapted to mass production and mechanized operation's spot welder, adopt two-sided two points overcurrent welding's principle, two electrode pressurization work pieces make two-layer metal form certain contact resistance under the pressure of two electrodes during operation, and welding current forms instantaneous heat welding at two contact resistance points when another electrode flows through from an electrode, and welding current flows to this electrode formation return circuit along two work pieces from another electrode in the twinkling of an eye to can not injure the inner structure of being welded the work piece.

The spot welding machine improves the production efficiency and reduces the labor intensity, thereby playing a positive promoting role. However, with such an automated spot welder, it is still necessary to manually engage the product and place the product under the spot welder and then activate the spot welder to perform the spot welding. From actual operation, this kind of spot welder still need to cooperate with the hand on the one hand, can't realize automatic centre gripping product, consequently, labor efficiency is not high, and on the other hand, the staff directly stretches into spot welder, and the danger coefficient is high.

CN208825817U discloses an automatic numerical control spot welding machine, which comprises a clamp, a jacking cylinder, a control system and a spot welding machine; the spot welding machine comprises a spot welding machine, a clamp, a jacking cylinder, a servo motor, a screw rod slide block, a control system, a hand-operated worm adjusting material, a spot welding machine electric shock surface and a control system, wherein the clamp is positioned on the front side of the spot welding machine, the clamp is fixedly positioned above a workbench, the jacking cylinder is positioned below the clamp and drives the clamp to eject out or descend; the workbench and the jacking cylinder move to position the material workpiece, the spot welding position is accurate, the material workpiece returns to the original position after welding is completed, and the height of the lower spot welding electrode surface can be adjusted through the hand-operated worm.

CN206216104U discloses a numerical control automatic spot welder, including the spot welder body, spot welder body one side is equipped with the support, the top is equipped with the second motor in the support, the second motor output is equipped with the swivel work head that is located the support top, the weldment has been placed on the swivel work head, swivel work head one side support top is equipped with first slide rail and the second slide rail of cross setting, second slide rail sliding connection has revolving cylinder, revolving cylinder one end is equipped with the claw and presss from both sides, be equipped with the propelling movement cylinder that is used for driving the second slide rail and removes in the first slide rail.

CN204524529U discloses an automatic spot welding machine, comprising: the spot welding device comprises a machine base, an automatic clamping mechanism, an upper spot welding mechanism, a lower spot welding mechanism and a material taking mechanism, wherein the automatic clamping mechanism comprises a clamping block, a clamping spring, a guide shaft and a switching cylinder, the upper spot welding mechanism and the lower spot welding mechanism comprise a servo motor, an up-and-down movement module, a spot welding head driving cylinder, a first pressing cylinder and a first spot welding head which are connected, the material taking mechanism comprises a material taking transverse moving cylinder, a material taking up-and-down movement cylinder, a material taking vacuum and a material receiving belt line, and the touch screen, the automatic clamping mechanism, the upper spot welding mechanism, the lower spot welding mechanism and the material taking mechanism are respectively electrically connected with a spot welding system controller.

The existing welding technology generally adopts a spot welding mode, the manual spot welding process is greatly influenced by human factors, and the problems of inaccurate spot welding position and deviation are easy to occur; the existing automatic spot welding machine carries out spot welding through the automatic operation of two shafts or a plurality of shafts, the positioning precision is improved to a certain extent compared with manual spot welding, but the positioning precision cannot be further improved, the reject ratio of products is high, the defective products can cause the product assembly to have deviation, the installation is difficult, and the using effect is influenced. Therefore, there is a need for an automatic spot welding machine that meets the current needs for mechanization, automation, mass production, high positioning accuracy, and industrial safety.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a biax linkage's multiple spot position intelligence numerical control spot welder, the utility model discloses on being fixed in the base with welding frame and moving platform group, make the spot welder reach high integration, improved the whole transportation of spot welder and the convenience that moves the machine on the scene, in addition, through setting up X axle moving platform and Y axle moving platform, can drive according to predetermineeing the orbit and treat that the welding member carries out automatic movement, convenient operation, positioning accuracy is high.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a double-shaft linkage multi-point intelligent numerical control spot welding machine, which comprises a base, a welding frame and a movable platform group, wherein the welding frame and the movable platform group are respectively fixed at two ends of the base;

the welding machine frame is provided with an upper support arm and a lower support arm in the transverse direction on one side close to the moving platform group, the upper support arm and the lower support arm are respectively provided with an upper welding electrode and a lower welding electrode which are opposite in position, a component to be welded is placed on the moving platform group, and the moving platform is used for sending the component to be welded into a position between the upper welding electrode and the lower welding electrode.

The movable platform set comprises an X-axis movable platform, a Y-axis movable platform and a lifting platform which are sequentially arranged from bottom to top, the component to be welded is placed on the lifting platform, the X-axis movable platform is used for driving the Y-axis movable platform to move along the X-axis direction, the Y-axis movable platform is used for driving the lifting platform to move along the Y-axis direction, and the lifting platform is used for driving the component to be welded to move along the vertical direction.

The utility model discloses in, the base is the linkage unit of whole spot welder, even as an organic whole with these two core mechanical unit organic of welding frame and moving platform group, and the dispersion unit that will pass carries out whole combination back and forms integratively, makes the spot welder reach high integration, has improved the convenience that the whole transportation of spot welder moved the machine with the scene, moves the machine and the packaging efficiency promotes 99%, the non-maintaining design of "integral type", also greatly reduced the on-the-spot electrical maintenance volume. Furthermore, the utility model discloses a set up X axle moving platform and Y axle moving platform, can drive according to predetermineeing the orbit and treat that the welding member carries out automatic movement, convenient operation, positioning accuracy is high.

It should be noted that the X axis and the Y axis in the present invention are two directions perpendicular to each other in the horizontal plane.

As an optimized technical scheme, X axle moving platform includes X axle fixed bolster and is fixed in X axle transmission on the X axle fixed bolster.

The X-axis transmission device comprises an X-axis lead screw fixed at the center line of the X-axis fixing bracket and an X-axis lead screw sliding block positioned on the X-axis lead screw, and an X-axis servo motor is arranged at one end of the X-axis lead screw in a transmission mode.

X axle fixed bolster both sides edge is provided with first X axle guide rail and second X axle guide rail respectively, first X axle guide rail, second X axle guide rail and X axle lead screw are parallel to each other, it is provided with first X axle slider and second X axle slider to slide respectively on first X axle guide rail and the second X axle guide rail, Y axle moving platform is fixed in on X axle lead screw slider, first X axle slider and the second X axle slider.

X-axis limit switches are arranged at two ends of the X-axis lead screw and electrically connected with the X-axis servo motor, the X-axis lead screw slide block moves to the position of the X-axis limit switch, and the X-axis limit switches send a shutdown instruction to the X-axis servo motor.

As an optimized technical scheme, Y axle moving platform includes Y axle fixed bolster and is fixed in Y axle transmission on the Y axle fixed bolster.

The Y-axis transmission device comprises a Y-axis lead screw fixed at the center line of the Y-axis fixing bracket and a Y-axis lead screw sliding block positioned on the Y-axis lead screw, and a Y-axis servo motor is arranged at one end of the Y-axis lead screw in a transmission mode.

Y axle fixed bolster both sides edge is provided with first Y axle guide rail and second Y axle guide rail respectively, first Y axle guide rail, second Y axle guide rail and Y axle screw are parallel to each other, it is provided with first Y axle slider and second Y axle slider to slide respectively on first Y axle guide rail and the second Y axle guide rail, lift platform is fixed in on Y axle screw slider, first Y axle slider and the second Y axle slider.

Y axle limit switch all is provided with at the both ends of Y axle lead screw, Y axle limit switch with Y axle servo motor electric connection, Y axle lead screw slider removes to Y axle limit switch position department, Y axle limit switch to Y axle servo motor sends the shut-down instruction.

As an optimal technical scheme, lift platform is including lift mounting bracket, be provided with at least three lift cylinder on the lift mounting bracket, place on the lift cylinder treat the welded component, the lift cylinder is used for driving treat the welded component and remove in vertical direction.

As a preferred technical scheme, it is provided with welding cylinder to go up the cantilever crane bottom, welding cylinder transmission is connected go up welding electrode, welding cylinder is used for driving it removes along vertical direction to go up welding electrode.

The lower welding electrode is fixed to the top of the lower support arm, and the upper welding electrode and the lower welding electrode are aligned in the vertical direction.

As an optimal technical scheme, the multiple spot position intelligence numerical control spot welder of biax linkage still includes power air supply unit, power air supply unit independently inserts respectively the lift cylinder with the welding cylinder, power air supply unit be used for to the lift cylinder with the welding cylinder lets in drive gas.

The power gas source device comprises a gas source, a first gas transmission branch and a second gas transmission branch are respectively led out from the outlet end of the gas source, the outlet end of the first gas transmission branch is connected to the welding cylinder, a first filter and a first electromagnetic valve are sequentially arranged on the first gas transmission branch along the gas flow direction, the gas outlet of the first electromagnetic valve is connected to the gas injection port of the welding cylinder, and the gas exhaust port of the welding cylinder is connected to the gas return port of the first electromagnetic valve.

The power air source further comprises an air storage tank, wherein two auxiliary air conveying pipelines are led out of the air storage tank and are respectively connected into the welding cylinder and the first air conveying branch pipe.

The outlet ends of the second gas transmission branches are respectively and independently connected into the lifting cylinders, a second filter and a second electromagnetic valve are sequentially arranged on the second gas transmission branches along the gas flow direction, the gas outlets of the second electromagnetic valves are respectively and independently connected into the gas injection port of each lifting cylinder, and the gas exhaust ports of the lifting cylinders are combined into one path and then connected into the gas return port of the second electromagnetic valve.

As an optimal technical scheme of the utility model, go up welding electrode with welding electrode electric connection welding transformer's positive output end and negative pole output respectively down.

As an optimal technical scheme, the multiple spot position intelligence numerical control spot welder of biax linkage still includes water cooling plant, water cooling plant independently inserts respectively welding transformer go up welding electrode with welding electrode down, water cooling plant is used for right welding transformer go up welding electrode with welding electrode carries out the water-cooling down.

The water cooling device is used for performing cold cutting cooling on the welding electrode and the welding transformer in the welding process, the water cooling device automatically operates after the spot welding machine is started, if the water cooling device automatically alarms and stops after water shortage, the circulating pump and the water return pipeline are used for realizing the recycling of cooling water, and water resources are saved.

The water cooling device comprises a water tank, a water outlet pipeline and a water return pipeline are respectively led out from the bottom and the top of the water tank, a circulating pump and a water separator are sequentially arranged on the water outlet pipeline along the flow direction of cooling water, three independent water outlet branches are divided from the outlet end of the water separator and are respectively connected to a water inlet of the welding transformer, a water inlet of the upper welding electrode and a water inlet of the lower welding electrode; and a temperature control switch is arranged on a water outlet branch circuit between the water distributor and the welding transformer.

The water outlet of the welding transformer, the water outlet of the upper welding electrode and the water outlet of the lower welding electrode are respectively connected into the water return pipeline, and cooling water in the water tank respectively flows into the welding transformer, the upper welding electrode and the lower welding electrode through the water outlet pipeline, is discharged and then returns to the water tank through the water return pipeline.

And a liquid level sensor is arranged in the water tank.

As an optimal technical scheme of the utility model, welding frame one side still is provided with electrically controlled device, be provided with the controller in the electrically controlled device, the controller is independent electric connection respectively X axle servo motor Y axle servo motor the lift cylinder and the welding cylinder, the controller is used for right treat that the removal of welding member in X axle direction and Y axle direction carries out independent control.

As an optimal technical scheme, be provided with X axle displacement sensor on the X axle fixing bracket, X axle displacement sensor is used for real-time detection the displacement of X axle screw slider.

And a Y-axis displacement sensor is arranged on the Y-axis fixing bracket and is used for detecting the displacement of the Y-axis lead screw slide block in real time.

The X-axis displacement sensor and the Y-axis displacement sensor are respectively and electrically connected with the controller, and the controller automatically controls the X-axis servo motor and the Y-axis servo motor according to the positions of the components to be welded in the X-axis direction and the Y-axis direction.

The box body of the electric control device is provided with a touch screen and an operation panel which are electrically connected, and the operation panel is electrically connected with the controller.

The utility model discloses in, electrically controlled device is the core control unit of whole spot welder, and the controller comprises a complete welding motion control unit by programmable control PLC, touch screen, operating panel, hand wheel and displacement sensor etc.. The utility model provides a spot welder has multiple operating function such as automatic weld, manual welding and hand wheel regulation. In addition, a welding control unit is also arranged in the electric control device, and a welding loop is formed by the welding adjusting controller, the welding transformer, the welding motor copper plate and the welding electrode.

The production line has two operation modes: (1) automatic welding; (2) and manually debugging the equipment. And switching two operation modes by clicking a button on the touch screen, and entering a corresponding functional interface. When the spot welding machine enters one of the operation modes and is in an operation state, the touch screen is automatically locked, and the clicking operation cannot be performed, namely, in the operation process of the spot welding machine, the functional interfaces of the two operation modes cannot be switched, and only when the spot welding machine stops operating, different operation modes can be freely switched. The following is a description of specific methods of operation for the two modes of operation:

(1) automatic welding:

in the operation mode, a worker is allowed to manually click a touch screen for inputting or manually ratchet the input welding track; after the components to be welded are placed, the touch screen or the foot switch is manually clicked to control the welding to be started, all the components to be welded with different specifications need to start from a circular point during automatic welding, the moving platform set drives the components to be welded to move according to the set welding tracks in the X-axis direction and the Y-axis direction and perform automatic spot welding, and after the spot welding is finished, the moving platform set drives the components to be welded to return to the initial position. And a linkage or non-linkage motion control function is realized between the X-axis direction displacement and the Y-axis direction displacement, power-off memory is supported, and the display of motion coordinates, the moving track and the counting of the to-be-welded components cannot be eliminated after power-off.

The functional interface operation process in the automatic welding operation mode specifically comprises the following steps:

(1) clicking an 'automatic welding' key on a touch screen to enter an automatic welding interface, wherein the interface can manually input a welding operation track and data of a component to be welded through the touch screen and a hand wheel;

if the welding process is the first time of welding the component to be welded, if the database does not have the data of the component to be welded, firstly clicking a 'modification' key on the touch screen to enter data input, and manually inputting the length mm of the component to be welded, the width mm of the component to be welded, the welding wire diameter mm, the processing quantity (sheets) and the welding path. After all data are input, pressing a 'save' key, and automatically saving the input data in a database so as to facilitate the direct calling of the next processing;

if processed product data exist in the database, pressing an inventory key, entering an inventory interface, searching for a required finished product name through an upper page key or a lower page key, pressing a call key after finding the required finished product name, and automatically entering the processing interface and displaying and calling current data by the system;

(2) and after entering a welding interface, displaying the called data:

if the welding parameters do not need to be modified, directly clicking a start key or a pedal key on the touch screen to perform automatic spot welding;

if the welding parameters need to be modified, clicking a 'modification' key on the touch screen to modify the welding parameters, clicking a 'save' key after the modification is finished, namely automatically saving data, automatically prompting a duplicate name during saving, covering the original stock data if the duplicate name is not changed, and restoring the finished product data if the duplicate name is not changed;

if most of the called data do not meet the welding requirement, a 'modification' key is clicked first, then a 'zero clearing' key is clicked, all data in the data frame are cleared, manual input is carried out again, after the input is finished, a 'storage' key is clicked, and the data are automatically stored in a database;

the input data column has minimum limit and maximum limit parameter values, if the minimum limit and the maximum limit parameter values exceed the minimum limit, the input is invalid parameters, namely, the input of numerical values cannot be carried out, and all the processing data are input and stored; the processing numerical value of the length of the finished product is not less than the limit value, otherwise, the data cannot be input, and the data is prevented from being input in a mess mode;

the spot welding machine has a memory function after power failure, and when the spot welding machine needs to temporarily stop running during running, a 'pause' key is clicked or a 'stop' switch is stepped, and the spot welding machine are stopped by software. When a spot welder has a special fault during operation, a 'scram' button is clicked as soon as possible, and the scram is software and hardware shutdown.

(2) Manual debugging:

the function interface under the operation mode is divided into an equipment operation area and an alarm indication area. The equipment which can be manually controlled in the equipment operation area comprises a welding cylinder, a lifting cylinder, an X-axis servo motor, a Y-axis servo motor, an electric welding machine and a circulating pump.

The operation process of the functional interface (device operation area) in the manual debugging operation mode specifically comprises the following steps:

the software control method of the lifting cylinder comprises the following steps: pressing the 'power-on lifting' key, powering on the lifting cylinder to lift, and stopping when lifting to a high limit; after the 'power-off landing' is pressed, the power-off automatically returns to the original position.

The software control method of the circulating pump comprises the following steps: pressing a start key, and electrifying the circulating pump to run; after the stop is pressed, the power is cut off and the stop is stopped.

The software control method of the X-axis servo motor comprises the following steps: pressing the 'left moving ↓' key, accelerating the left movement by the X-axis motor, and continuously pressing the X-axis motor immovably;

pressing the key of 'left shift ↓', the X-axis motor is shifted left at the uniform speed, and the speed is reduced and shifted left if the key is continuously pressed;

pressing the key of 'right moving ↓' to accelerate the X-axis motor to move to the right, and continuously pressing the key without moving to accelerate the X-axis motor to move to the right;

pressing the key of 'right shift ↓' causes the X-axis motor to shift to the right at uniform speed, and continuously pressing the key to shift to the right at reduced speed;

after the stop is pressed, the motor is powered off and stopped, and the motor is also automatically stopped when reaching the left limit or the right limit.

The software control method of the Y-axis servo motor comprises the following steps: pressing the key of 'forward movement ↓' to accelerate the Y-axis motor at uniform speed, and pressing continuously without moving to accelerate the Y-axis motor;

pressing the key of 'forward movement ↓', the Y-axis motor moves forward at uniform speed, and continuously pressing the key of 'forward movement ↓' and then moves forward at reduced speed,

pressing the key of 'right moving ↓' to move the Y-axis motor backward at the uniform speed, and continuously pressing the key without moving to move backward at the accelerated speed,

pressing the key of 'right shift ↓' causes the Y-axis motor to shift backwards at uniform speed, and continuously pressing the key to shift backwards at reduced speed,

after the stop is pressed, the motor is powered off and stopped, and the motor is also automatically stopped when the motor reaches the front limit or the rear limit.

The alarm indication area comprises a water shortage alarm and an overtemperature alarm: after the sensor is switched on, the sound-light alarm is automatically sent out to remind people to pay attention.

Exemplarily, the utility model provides a spot welder operation process when automatic weld specifically includes following step:

(1) selecting different physical product frames according to production needs, if the welding data of the frame does not exist in the database, clicking a 'modification' key to input the data through a touch screen or a hand wheel, clicking a 'storage' key after inputting the welding data, automatically storing the data in the database, and directly calling the data next time after storing the data;

(2) clicking a 'welding start' key, enabling the spot welding machine to enter an automatic processing mode, electrifying an electric control device, carrying out conventional detection before welding by an operator, and starting a water cooling device and a power gas source device; and inputting welding data such as length, width, wire diameter, processing quantity, welding tracks and the like on the touch screen.

(3) Clicking a 'back-to-original-point' key, and jointly moving the X-axis moving platform and the Y-axis moving platform to back to the original-point position, namely a welding starting point position;

(4) an operator puts the fed welding frame into the moving platform group, steps on the foot switch, and the X-axis servo motor and the Y-axis servo motor automatically find a welding starting point position;

(5) the welding cylinder drives the upper welding electrode to descend, meanwhile, the lifting platform drives the component to be welded to ascend, and the upper welding electrode and the lower welding electrode perform spot welding on the component to be welded;

(6) after the first welding point is finished, the welding cylinder drives the upper welding electrode to ascend, and meanwhile, the lifting platform drives the component to be welded to descend, so that the component to be welded is far away from the upper welding electrode; the X-axis moving platform and the Y-axis moving platform drive the component to be welded to move to the next point to be welded according to a preset moving track;

(7) the upper welding electrode descends again, meanwhile, the component to be welded ascends, and spot welding is carried out on the component to be welded; and repeating the steps until all the spot welding points to be welded are completely welded.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses in, the base is the linkage unit of whole spot welder, even as an organic whole with these two core mechanical unit organic of welding frame and moving platform group, and the dispersion unit that will pass carries out whole combination back and forms integratively, makes the spot welder reach high integration, has improved the convenience that the whole transportation of spot welder moved the machine with the scene, moves the machine and the packaging efficiency promotes 99%, the non-maintaining design of "integral type", also greatly reduced the on-the-spot electrical maintenance volume. Furthermore, the utility model discloses a set up X axle moving platform, Y axle moving platform and lift platform, can drive according to predetermineeing the orbit and treat that the welding member carries out automatic movement, convenient operation, positioning accuracy is high.

Drawings

Fig. 1 is a schematic structural view of a multi-point intelligent numerical control spot welding machine according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an X-axis moving platform according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a power air source device according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a water cooling device according to an embodiment of the present invention;

fig. 5 is a schematic side view of a multi-point intelligent numerically controlled spot welding machine according to an embodiment of the present invention;

fig. 6 is a schematic side view of a multi-point intelligent numerically controlled spot welding machine according to an embodiment of the present invention;

fig. 7 is a touch screen operation interface of an automatic welding operation mode according to an embodiment of the present invention;

fig. 8 is a touch screen operation interface of a manual debugging operation mode according to an embodiment of the present invention;

wherein, 1-a base; 2-welding the frame; 3-X axis motion stage; 4-Y axis moving platform; 5-lifting the fixed bracket; 6-upper support arm; 7-upper welding electrode; 8-welding a cylinder; 9-lower support arm; 10-a lower welding electrode; 11-a component to be welded; 12-a lifting cylinder; 13-X axis mounting bracket; 14-X axis servo motor; 15-X axis lead screw; 16-X axis lead screw slide block; 17-a first X-axis guide rail; 18-a first X-axis slide; 19-a second X-axis guide; 20-a second X-axis slide; 21-gas source; 22-a first gas transmission branch; 23-a first filter; 24-a first solenoid valve; 25-a second gas transmission branch; 26-a second filter; 27-a second solenoid valve; 28-auxiliary gas pipeline; 29-gas storage tank; 30-a water tank; 31-water outlet pipeline; 32-a circulation pump; 33-a water separator; 34-a temperature control switch; 35-welding a transformer; 36-a water return line; 37-a liquid level sensor; 38-an electronic control device; 39-hand wheel.

Detailed Description

It is to be understood that in the description of the present invention, the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for the purpose of convenience and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

It should be noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected" and "connected" in the description of the present invention are to be construed broadly, and may for example be fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

It should be understood that the present invention includes the necessary pipeline, conventional valve and general pump equipment for realizing the complete process, but the above contents do not belong to the main innovation point of the present invention, and the skilled person can select the type based on the process flow and the equipment structure to add the layout by himself, and the present invention does not have the special requirement and limitation.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

In a specific embodiment, the utility model provides a multiple spot position intelligence numerical control spot welder of biax linkage, as shown in fig. 1, the multiple spot position intelligence numerical control spot welder includes base 1, welding frame 2 and moving platform group are fixed in respectively base 1 both ends;

an upper support arm 6 and a lower support arm 9 are transversely arranged on one side, close to the moving platform group, of the welding machine frame 2, an upper welding electrode 7 and a lower welding electrode 10 are arranged on the upper support arm 6 and the lower support arm 9 respectively and are opposite to each other in position, a component 11 to be welded is placed on the moving platform group, and the moving platform is used for feeding the component 11 to be welded into a position between the upper welding electrode 7 and the lower welding electrode 10.

The moving platform set comprises an X-axis moving platform 3, a Y-axis moving platform 4 and a lifting platform which are sequentially arranged from bottom to top, the component 11 to be welded is placed on the lifting platform, the X-axis moving platform 3 is used for driving the Y-axis moving platform 4 to move along the X-axis direction, the Y-axis moving platform 4 is used for driving the lifting platform to move along the Y-axis direction, and the lifting platform is used for driving the component 11 to be welded to move along the vertical direction.

The utility model discloses in, base 1 is the linkage unit of whole spot welder, even as an organic whole with these two core mechanical unit organics of welding frame 2 and moving platform group, and the dispersion unit that will pass carries out to form integratively after the whole combination, makes the spot welder reach high integration, has improved the convenience that the whole transportation of spot welder moved the machine with the scene, moves the machine and the packaging efficiency promotes 99%, the non-maintaining design of "integral type", also greatly reduced the on-the-spot electrical maintenance volume. Furthermore, the utility model discloses a set up X axle moving platform 3 and Y axle moving platform, can drive according to predetermineeing the orbit and treat that welding member 11 carries out automatic movement, convenient operation, positioning accuracy is high.

It should be noted that the X axis and the Y axis in the present invention are two directions perpendicular to each other in the horizontal plane.

Further, as shown in fig. 2, the X-axis moving platform 3 includes an X-axis fixing bracket 13 and an X-axis transmission device fixed on the X-axis fixing bracket 13.

The X-axis transmission device comprises an X-axis screw rod 15 fixed at the center line of the X-axis fixing bracket 13 and an X-axis screw rod sliding block 16 positioned on the X-axis screw rod 15, and an X-axis servo motor 14 is arranged at one end of the X-axis screw rod 15 in a transmission mode.

X axle fixed bolster 13 both sides edge is provided with first X axle guide rail 17 and second X axle guide rail 19 respectively, first X axle guide rail 17, second X axle guide rail 19 and X axle lead screw 15 are parallel to each other, it is provided with first X axle slider 18 and second X axle slider 20 to slide respectively on first X axle guide rail 17 and the second X axle guide rail 19, Y axle moving platform 4 is fixed in on X axle lead screw slider 16, first X axle slider 18 and the second X axle slider 20.

Both ends of the X-axis screw rod 15 are provided with X-axis limit switches, the X-axis limit switches are electrically connected with the X-axis servo motor 14, the X-axis screw rod sliding block 16 moves to the position of the X-axis limit switches, and the X-axis limit switches send out a shutdown instruction to the X-axis servo motor 14.

Further, the Y-axis moving stage 4 includes a Y-axis fixing bracket and a Y-axis transmission device fixed to the Y-axis fixing bracket.

The Y-axis transmission device comprises a Y-axis lead screw fixed at the center line of the Y-axis fixing bracket and a Y-axis lead screw sliding block positioned on the Y-axis lead screw, and a Y-axis servo motor is arranged at one end of the Y-axis lead screw in a transmission mode.

Y axle fixed bolster both sides edge is provided with first Y axle guide rail and second Y axle guide rail respectively, first Y axle guide rail, second Y axle guide rail and Y axle screw are parallel to each other, it is provided with first Y axle slider and second Y axle slider to slide respectively on first Y axle guide rail and the second Y axle guide rail, lift platform is fixed in on Y axle screw slider, first Y axle slider and the second Y axle slider.

Y axle limit switch all is provided with at the both ends of Y axle lead screw, Y axle limit switch with Y axle servo motor electric connection, Y axle lead screw slider removes to Y axle limit switch position department, Y axle limit switch to Y axle servo motor sends the shut-down instruction.

Further, the lifting platform comprises a lifting fixing bracket 5, at least three lifting cylinders 12 are arranged on the lifting fixing bracket 5, the to-be-welded component 11 is placed on the lifting cylinders 12, and the lifting cylinders 12 are used for driving the to-be-welded component 11 to move in the vertical direction.

Further, a welding cylinder 8 is arranged at the bottom of the upper support arm 6, the welding cylinder 8 is in transmission connection with the upper welding electrode 7, and the welding cylinder 8 is used for driving the upper welding electrode 7 to move along the vertical direction.

The lower welding electrode 10 is fixed to the top of the lower arm 9, and the upper welding electrode 7 and the lower welding electrode 10 are aligned in the vertical direction.

Furthermore, the double-shaft linkage multi-point intelligent numerical control spot welding machine further comprises a power gas source device, the power gas source device is respectively and independently connected into the lifting cylinder 12 and the welding cylinder 8, and the power gas source device is used for introducing driving gas into the lifting cylinder 12 and the welding cylinder 8.

As shown in fig. 3, the power gas source device includes a gas source 21, a first gas transmission branch 22 and a second gas transmission branch 25 are respectively led out from an outlet end of the gas source 21, an outlet end of the first gas transmission branch 22 is connected to the welding cylinder 8, a first filter 23 and a first electromagnetic valve 24 are sequentially arranged on the first gas transmission branch 22 along a gas flow direction, a gas outlet of the first electromagnetic valve 24 is connected to a gas injection port of the welding cylinder 8, and a gas outlet of the welding cylinder 8 is connected to a gas return port of the first electromagnetic valve 24.

As shown in fig. 6, the power air source 21 further includes an air storage tank 29, and two auxiliary air transmission pipelines 28 are led out from the air storage tank 29 and respectively connected to the welding cylinder 8 and the first air transmission branch pipe.

The outlet end of the second gas transmission branch 25 is respectively and independently connected to each lifting cylinder 12, a second filter 26 and a second electromagnetic valve 27 are sequentially arranged on the second gas transmission branch 25 along the gas flow direction, the gas outlet of the second electromagnetic valve 27 is respectively and independently connected to the gas injection port of each lifting cylinder 12, and the gas exhaust ports of the lifting cylinders 12 are combined into one path and then connected to the gas return port of the second electromagnetic valve 27.

Further, the upper welding electrode 7 and the lower welding electrode 10 are electrically connected to the positive output terminal and the negative output terminal of the welding transformer 35, respectively.

Further, the intelligent numerical control spot welder of multiple spot positions of biax linkage still includes water cooling plant, water cooling plant independently inserts respectively welding transformer 35 go up welding electrode 7 with welding electrode 10 down, water cooling plant is used for right welding transformer 35 go up welding electrode 7 with welding electrode 10 carries out the water-cooling down.

The water cooling device is used for performing cold cutting cooling on the welding electrode and the welding transformer 35 in the welding process, the water cooling device automatically runs after the spot welding machine is started, if the water cooling device automatically alarms and stops after water shortage, the circulating pump 32 and the water return pipeline 36 are used for realizing the recycling of cooling water, and water resources are saved.

As shown in fig. 4, 5 and 6, the water cooling device includes a water tank 30, a water outlet pipeline 31 and a water return pipeline 36 are respectively led out from the bottom and the top of the water tank 30, a circulation pump 32 and a water separator 33 are sequentially arranged on the water outlet pipeline 31 along the flow direction of cooling water, and the outlet end of the water separator 33 is divided into three independent water outlet branches which are respectively connected to the water inlet of the welding transformer 35, the water inlet of the upper welding electrode 7 and the water inlet of the lower welding electrode 10; a temperature control switch 34 is arranged on a water outlet branch between the water separator 33 and the welding transformer 35.

The water outlet of the welding transformer 35, the water outlet of the upper welding electrode 7 and the water outlet of the lower welding electrode 10 are respectively connected to the water return pipeline 36, and the cooling water in the water tank 30 respectively flows into the welding transformer 35, the upper welding electrode 7 and the lower welding electrode 10 through the water outlet pipeline 31, and is discharged and then returns to the water tank 30 through the water return pipeline 36.

A liquid level sensor 37 is disposed in the water tank 30.

Further, an electric control device 38 is further arranged on one side of the welding rack 2, a controller is arranged in the electric control device 38, the controller is respectively and independently electrically connected with the X-axis servo motor 14, the Y-axis servo motor, the lifting cylinder 12 and the welding cylinder 8, and the controller is used for independently controlling the movement of the member to be welded 11 in the X-axis direction and the Y-axis direction.

Further, an X-axis displacement sensor is arranged on the X-axis fixing bracket 13, and the X-axis displacement sensor is used for detecting the displacement of the X-axis lead screw slider 16 in real time.

And a Y-axis displacement sensor is arranged on the Y-axis fixing bracket and is used for detecting the displacement of the Y-axis lead screw slide block in real time.

The X-axis displacement sensor and the Y-axis displacement sensor are respectively electrically connected with the controller, and the controller automatically controls the X-axis servo motor 14 and the Y-axis servo motor according to the positions of the components 11 to be welded in the X-axis direction and the Y-axis direction.

The box body of the electric control device 38 is provided with a touch screen and an operation panel which are electrically connected, and the operation panel is electrically connected with the controller.

The utility model discloses in, electrically controlled device 38 is the core control unit of whole spot welder, and the controller comprises a complete welding motion control unit by programmable control PLC, touch screen, operating panel, hand wheel and displacement sensor etc.. The utility model provides a spot welder has multiple operating function such as automatic weld, manual welding and hand wheel regulation. In addition, a welding control unit is arranged in the electric control device 38, and a welding loop is formed by the welding adjusting controller, the welding transformer 35, the welding motor copper plate and the welding electrode.

The production line has two operation modes: (1) automatic welding; (2) the device is manually commissioned. And switching two operation modes by clicking a button on the touch screen, and entering a corresponding functional interface. When the spot welding machine enters one of the operation modes and is in an operation state, the touch screen is automatically locked, and the clicking operation cannot be performed, namely, in the operation process of the spot welding machine, the functional interfaces of the two operation modes cannot be switched, and only when the spot welding machine stops operating, different operation modes can be freely switched. The following is a description of specific methods of operation for the two modes of operation:

(1) automatic welding:

in the operation mode, a worker is allowed to manually click a touch screen for inputting or manually ratchet the welding track; after the components 11 to be welded are placed, the touch screen or the foot switch is manually clicked to control the welding to be started, all the components 11 to be welded with different specifications need to start from a circular point during automatic welding, the moving platform set drives the components 11 to be welded to move according to the set welding tracks in the X-axis direction and the Y-axis direction and perform automatic spot welding, and after spot welding is finished, the moving platform set drives the components 11 to be welded to return to the initial position. And the X-axis displacement and the Y-axis displacement have a linked or non-linked motion control function, and support power-off memory, and the display of motion coordinates, the movement track and the counting of the to-be-welded component 11 cannot be eliminated after power-off.

As shown in fig. 7, the operation process of the functional interface in the automatic welding operation mode specifically includes the following steps:

(1) clicking an 'automatic welding' key on a touch screen to enter an automatic welding interface, wherein the interface can manually input a welding operation track and data of a component 11 to be welded through the touch screen and a hand wheel;

if the welding of the component 11 to be welded is carried out for the first time, if the database does not have the data of the component 11 to be welded, firstly, a 'modification' key on the touch screen is clicked to enter data input, and the length mm of the component 11 to be welded, the width mm of the component 11 to be welded, the welding line diameter mm, the processing number (sheets) and the welding path are manually input. After all data are input, pressing a 'save' key, and automatically saving the input data in a database so as to facilitate the direct calling of the next processing;

if processed product data exist in the database, pressing an inventory key, entering an inventory interface, searching for a required finished product name through an upper page key or a lower page key, pressing a call key after finding the required finished product name, and automatically entering the processing interface and displaying and calling current data by the system;

(2) and after entering a welding interface, displaying the called data:

if the welding parameters do not need to be modified, directly clicking a start key or a pedal key on the touch screen to perform automatic spot welding;

if the welding parameters need to be modified, a 'modification' key on the touch screen is clicked, the welding parameters are modified, after the modification is finished, a 'save' key is clicked, namely, data are automatically saved, the duplicate name is automatically prompted during saving, if the duplicate name is not changed, the original stock data are covered, and if the duplicate name is not changed, the finished product data are restored;

if most of the called data do not meet the welding requirement, a 'modification' key is clicked first, then a 'zero clearing' key is clicked, all data in the data frame are cleared and manually input is repeated, after the input is finished, a 'storage' key is clicked, and the data are automatically stored in a database;

the input data column has minimum limit and maximum limit parameter values, and when the minimum limit and the maximum limit parameter values exceed the minimum limit, the input data is invalid parameters, namely, the input of numerical values cannot be carried out, and all the processing data are input and stored; the processing numerical value of the length of the finished product is not less than the limit value, otherwise, the data cannot be input, and the data is prevented from being input in a mess mode;

the spot welding machine has a memory function after power failure, and when the spot welding machine needs to temporarily stop running during running, a 'pause' key is clicked or a 'stop' switch is stepped, and the spot welding machine are stopped by software. When a spot welder has a special fault during operation, a 'scram' button is clicked as soon as possible, and the scram is software and hardware shutdown.

(2) Manual debugging:

the function interface under the operation mode is divided into an equipment operation area and an alarm indication area. The manually operable equipment in the equipment operating area comprises a welding cylinder 8, a lifting cylinder 12, an X-axis servo motor 14, a Y-axis servo motor, an electric welding machine and a circulating pump 32.

As shown in fig. 8, the operation process of the functional interface (device operating area) in the manual debugging operation mode specifically includes:

the software control method of the lifting cylinder 12 comprises the following steps: pressing the 'power-on lifting' key, the lifting cylinder 12 is powered on to lift, and stops when the lifting cylinder rises to a high limit; after the 'power-off landing' is pressed, the power-off automatically returns to the original position.

Software control method of the circulation pump 32: the 'start' key is pressed, and the circulating pump 32 is electrified to run; after the stop is pressed, the power is cut off and the stop is stopped.

The software control method of the X-axis servo motor 14 comprises the following steps: pressing the 'left moving ↓' key, accelerating the left movement by the X-axis motor, and continuously pressing the X-axis motor immovably;

pressing the key of 'left shift ↓', the X-axis motor is shifted left at the uniform speed, and the speed is reduced and shifted left if the key is continuously pressed;

pressing the key of 'right moving ↓' to accelerate the X-axis motor to move to the right, and continuously pressing the key without moving to accelerate the X-axis motor to move to the right;

pressing the key of 'right shift ↓' causes the X-axis motor to shift to the right at uniform speed, and continuously pressing the key to shift to the right at reduced speed;

after the stop is pressed, the motor is powered off and stopped, and the motor is also automatically stopped when reaching the left limit or the right limit.

The software control method of the Y-axis servo motor comprises the following steps: pressing the key of 'forward movement ↓' to accelerate the Y-axis motor at uniform speed, and pressing continuously without moving to accelerate the Y-axis motor;

pressing the key of 'forward movement ↓', the Y-axis motor moves forward at uniform speed, and continuously pressing the key of 'forward movement ↓' and then moves forward at reduced speed,

pressing the key of 'right moving ↓' to move the Y-axis motor backward at the uniform speed, and continuously pressing the key without moving to move backward at the accelerated speed,

pressing the key of 'right shift ↓' causes the Y-axis motor to shift backwards at uniform speed, and continuously pressing the key to shift backwards at reduced speed,

after the stop is pressed, the motor is powered off and stopped, and the motor is also automatically stopped when the motor reaches the front limit or the rear limit.

The alarm indication area comprises a water shortage alarm and an overtemperature alarm: after the sensor is switched on, the sound-light alarm is automatically sent out to remind people to pay attention.

In another embodiment, the present invention provides a spot welding machine, which comprises:

(1) selecting different physical product frames according to production needs, if the frame welding data does not exist in the database, clicking a 'modification' key to input through a touch screen or a hand wheel, clicking a 'storage' key after inputting the welding data, automatically storing the data in the database, and directly calling the data next time after storing;

(2) clicking a 'welding start' key, enabling the spot welding machine to enter an automatic processing mode, electrifying the electric control device 38, carrying out conventional detection before welding by an operator, and starting the water cooling device and the power air source device; and inputting welding data such as length, width, wire diameter, processing quantity, welding tracks and the like on the touch screen.

(3) Clicking a 'back-to-original-point' key, and jointly moving the X-axis moving platform 3 and the Y-axis moving platform 4 to back to the original-point position, namely a welding starting point position;

(4) an operator puts the fed welding frame into the moving platform group, and steps on the foot switch, so that the X-axis servo motor 14 and the Y-axis servo motor automatically find a welding starting point position;

(5) the welding cylinder 8 drives the upper welding electrode 7 to descend, meanwhile, the lifting platform drives the component 11 to be welded to ascend, and the upper welding electrode 7 and the lower welding electrode 10 perform spot welding on the component 11 to be welded;

(6) after the first welding point is finished, the welding cylinder 8 drives the upper welding electrode 7 to ascend, and meanwhile, the lifting platform drives the component to be welded 11 to descend, so that the component to be welded 11 is far away from the upper welding electrode 7; the X-axis moving platform 3 and the Y-axis moving platform 4 drive the component to be welded 11 to move to the next point to be welded according to a preset moving track;

(7) the upper welding electrode 7 descends again, and simultaneously the component 11 to be welded ascends to perform spot welding on the component 11 to be welded; and repeating the steps until all the spot welding points to be welded are completely welded.

The applicant states that the above description is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present invention are within the protection scope and the disclosure scope of the present invention.

Claims (10)

1. The double-shaft linkage multi-point intelligent numerical control spot welding machine is characterized by comprising a base, a welding rack and a movable platform group, wherein the welding rack and the movable platform group are respectively fixed at two ends of the base;

an upper support arm and a lower support arm are transversely arranged on one side, close to the moving platform group, of the welding rack, an upper welding electrode and a lower welding electrode which are opposite in position are respectively arranged on the upper support arm and the lower support arm, a component to be welded is placed on the moving platform group, and the moving platform is used for sending the component to be welded into a position between the upper welding electrode and the lower welding electrode;

the mobile platform set comprises an X-axis mobile platform, a Y-axis mobile platform and a lifting platform which are sequentially arranged from bottom to top, the component to be welded is placed on the lifting platform, the X-axis mobile platform is used for driving the Y-axis mobile platform to move along the X-axis direction, the Y-axis mobile platform is used for driving the lifting platform to move along the Y-axis direction, and the lifting platform is used for driving the component to be welded to move along the vertical direction.

2. The dual-axis linkage multi-point-position intelligent numerical control spot welding machine according to claim 1, wherein the X-axis moving platform comprises an X-axis fixing bracket and an X-axis transmission device fixed on the X-axis fixing bracket;

the X-axis transmission device comprises an X-axis lead screw fixed at the center line of the X-axis fixing bracket and an X-axis lead screw sliding block positioned on the X-axis lead screw, and an X-axis servo motor is arranged at one end of the X-axis lead screw in a transmission manner;

a first X-axis guide rail and a second X-axis guide rail are respectively arranged at the edges of two sides of the X-axis fixing bracket, the first X-axis guide rail, the second X-axis guide rail and the X-axis screw rod are parallel to each other, a first X-axis sliding block and a second X-axis sliding block are respectively arranged on the first X-axis guide rail and the second X-axis guide rail in a sliding manner, and the Y-axis moving platform is fixed on the X-axis screw rod sliding block, the first X-axis sliding block and the second X-axis sliding block;

x-axis limit switches are arranged at two ends of the X-axis lead screw and electrically connected with the X-axis servo motor, the X-axis lead screw slide block moves to the position of the X-axis limit switch, and the X-axis limit switches send a shutdown instruction to the X-axis servo motor.

3. The dual-axis linkage multi-point-position intelligent numerical control spot welding machine according to claim 2, wherein the Y-axis moving platform comprises a Y-axis fixing bracket and a Y-axis transmission device fixed on the Y-axis fixing bracket;

the Y-axis transmission device comprises a Y-axis lead screw fixed at the center line of the Y-axis fixing bracket and a Y-axis lead screw sliding block positioned on the Y-axis lead screw, and one end of the Y-axis lead screw is provided with a Y-axis servo motor in a transmission manner;

a first Y-axis guide rail and a second Y-axis guide rail are respectively arranged at the edges of two sides of the Y-axis fixing bracket, the first Y-axis guide rail, the second Y-axis guide rail and the Y-axis screw rod are parallel to each other, a first Y-axis sliding block and a second Y-axis sliding block are respectively arranged on the first Y-axis guide rail and the second Y-axis guide rail in a sliding manner, and the lifting platform is fixed on the Y-axis screw rod sliding block, the first Y-axis sliding block and the second Y-axis sliding block;

y axle limit switch all is provided with at the both ends of Y axle lead screw, Y axle limit switch with Y axle servo motor electric connection, Y axle lead screw slider removes to Y axle limit switch position department, Y axle limit switch to Y axle servo motor sends the shut-down instruction.

4. The double-shaft linkage multi-point-position intelligent numerical control spot welding machine according to claim 3, wherein the lifting platform comprises a lifting fixing bracket, at least three lifting cylinders are arranged on the lifting fixing bracket, the to-be-welded components are placed on the lifting cylinders, and the lifting cylinders are used for driving the to-be-welded components to move in the vertical direction.

5. The double-shaft linkage multi-point-position intelligent numerical control spot welding machine according to claim 4, wherein a welding cylinder is arranged at the bottom of the upper support arm, the welding cylinder is in transmission connection with the upper welding electrode, and the welding cylinder is used for driving the upper welding electrode to move in the vertical direction;

the lower welding electrode is fixed to the top of the lower support arm, and the upper welding electrode and the lower welding electrode are aligned in the vertical direction.

6. The dual-shaft linkage multi-point intelligent numerical control spot welding machine according to claim 5, further comprising a power gas source device, wherein the power gas source device is respectively and independently connected to the lifting cylinder and the welding cylinder, and is used for introducing driving gas into the lifting cylinder and the welding cylinder;

the power gas source device comprises a gas source, a first gas transmission branch and a second gas transmission branch are respectively led out from the outlet end of the gas source, the outlet end of the first gas transmission branch is connected to the welding cylinder, a first filter and a first electromagnetic valve are sequentially arranged on the first gas transmission branch along the gas flow direction, the gas outlet of the first electromagnetic valve is connected to the gas injection port of the welding cylinder, and the gas exhaust port of the welding cylinder is connected to the gas return port of the first electromagnetic valve;

the power gas source also comprises a gas storage tank, wherein two auxiliary gas transmission pipelines are led out of the gas storage tank and are respectively connected to the welding cylinder and the first gas transmission branch pipe;

the outlet ends of the second gas transmission branches are respectively and independently connected into the lifting cylinders, a second filter and a second electromagnetic valve are sequentially arranged on the second gas transmission branches along the gas flow direction, the gas outlets of the second electromagnetic valves are respectively and independently connected into the gas injection port of each lifting cylinder, and the gas exhaust ports of the lifting cylinders are combined into one path and then connected into the gas return port of the second electromagnetic valve.

7. The dual-axis linkage multi-point intelligent numerical control spot welder according to claim 1, wherein the upper welding electrode and the lower welding electrode are electrically connected to a positive output end and a negative output end of a welding transformer respectively.

8. The dual-shaft linkage multi-point intelligent numerical control spot welding machine according to claim 7, further comprising a water cooling device, wherein the water cooling device is independently connected to the welding transformer, the upper welding electrode and the lower welding electrode, and is used for performing water cooling on the welding transformer, the upper welding electrode and the lower welding electrode;

the water cooling device comprises a water tank, a water outlet pipeline and a water return pipeline are respectively led out from the bottom and the top of the water tank, a circulating pump and a water separator are sequentially arranged on the water outlet pipeline along the flow direction of cooling water, three independent water outlet branches are divided from the outlet end of the water separator and are respectively connected to a water inlet of the welding transformer, a water inlet of the upper welding electrode and a water inlet of the lower welding electrode; a temperature control switch is arranged on a water outlet branch circuit between the water separator and the welding transformer;

the water outlet of the welding transformer, the water outlet of the upper welding electrode and the water outlet of the lower welding electrode are respectively connected to the water return pipeline, and cooling water in the water tank respectively flows into the welding transformer, the upper welding electrode and the lower welding electrode through the water outlet pipeline, is discharged and then returns to the water tank through the water return pipeline;

and a liquid level sensor is arranged in the water tank.

9. The double-shaft linkage multi-point-position intelligent numerical control spot welding machine according to claim 5, wherein an electric control device is further arranged on one side of the welding rack, a controller is arranged in the electric control device, the controller is respectively and independently electrically connected with the X-axis servo motor, the Y-axis servo motor, the lifting cylinder and the welding cylinder, and the controller is used for independently controlling the movement of the members to be welded in the X-axis direction and the Y-axis direction.

10. The dual-shaft linkage multi-point intelligent numerical control spot welding machine according to claim 9, wherein an X-axis displacement sensor is arranged on the X-axis fixing bracket and used for detecting the displacement of the X-axis lead screw slider in real time;

a Y-axis displacement sensor is arranged on the Y-axis fixing bracket and used for detecting the displacement of the Y-axis lead screw slide block in real time;

the X-axis displacement sensor and the Y-axis displacement sensor are respectively and electrically connected with the controller, and the controller automatically controls the X-axis servo motor and the Y-axis servo motor according to the positions of the components to be welded in the X-axis direction and the Y-axis direction;

the box body of the electric control device is provided with a touch screen and an operation panel which are electrically connected, and the operation panel is electrically connected with the controller.

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