Multifunctional workbench

Abstract

The invention relates to the technical field of workpiece fixing, in particular to a multifunctional workbench which comprises a workbench body, and a welding supporting plate is fixedly connected to the upper end face of the workbench body; and the fixing mechanism comprises a plurality of fixing boxes fixedly connected to the upper end face of the workbench in a rectangular array mode, and fixing bases are fixedly connected to the center positions of the opposite faces of the fixing boxes. Through a clamp assembly, a hydraulic metering assembly, a hydraulic release assembly and a liquid exchange assembly in the fixing mechanism, corresponding pressurized liquid is injected into the clamp assembly through the hydraulic metering assembly, so that the clamping force corresponding to the fixing mechanism can be changed for the fixing mechanism according to different welding piece materials; the best contact and fixing effect between the clamp and a workpiece can be achieved, it is guaranteed that the workpiece cannot move in the welding process, and therefore the precision and quality of a welding seam are guaranteed.

Description

[0001] This application is a divisional application of the Chinese invention patent application with the invention name “A multifunctional workbench and its dexterous welding robot” and application number 202411537693.8 filed on October 31, 2024. Technical Field

[0002] The invention relates to the technical field of welding workpiece fixing, and in particular to a multifunctional workbench. Background Art

[0003] In the field of welding, a workbench is usually equipped with a clamp for fixing the welding workpiece to ensure that the workpiece does not move during the welding process, such as a multifunctional workbench and a welding robot disclosed in publication number CN115026467A.

[0004] When the workbench is welding workpieces of different materials, the fixture on the workbench will not be replaced, and its own clamping force will not change. When fixing different materials, the pressure distribution on the contact surface between the fixture and the workpiece is the same, resulting in: when facing materials with lower hardness (such as aluminum alloy workpieces, copper alloy workpieces, etc.), the workpiece surface will be deformed or damaged due to excessive fixture pressure. When facing materials with higher hardness (such as high carbon steel workpieces, cemented carbide workpieces, etc.), they cannot be effectively fixed due to insufficient fixture pressure, which affects the welding quality. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a multifunctional workbench, which can effectively solve the problem that the clamping force of the prior art clamps usually cannot be changed, and when fixing different materials, the pressure distribution on the contact surface between the clamp and the workpiece will be the same, making it impossible to effectively fix them.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a multifunctional workbench, comprising: A workbench, the upper end surface of which is fixedly connected with a welding support plate; A fixing mechanism, the fixing mechanism comprising a plurality of fixing boxes fixedly connected to the upper end surface of the welding support plate in a rectangular array, a fixing seat fixedly connected to the center position of the opposite surface of each fixing box, a plurality of telescopic rods fixedly connected to the fixing seat in a circular array on a side away from the fixing box, a clamp assembly for clamping and fixing the welding workpiece is commonly provided on a side away from the fixing seat, a hydraulic metering assembly for pressurizing the liquid and a hydraulic release assembly for relieving the pressure of the liquid are arranged side by side on the inner wall of the fixing box and along the length direction, and the hydraulic metering assembly and the hydraulic release assembly are both connected to the clamp assembly, a liquid exchange assembly for replacing the liquid in the clamp assembly is provided at the inner bottom of the workbench, and a liquid stirring assembly is provided inside the liquid exchange assembly; The heat absorption mechanism comprises four heat absorption blocks fixedly connected to the edges of the four sides of the opposite surfaces of the fixed box, and a suction component for providing suction to the heat absorption blocks is arranged inside the workbench, and the suction component is connected to the heat absorption blocks.

[0007] Preferably, the clamp assembly includes a pair of clamping plates fixedly connected to one side of the telescopic rod, and the pair of clamping plates have a gap, a connecting ring is fixedly connected at the gap of the pair of clamping plates, the pair of clamping plates and the connecting ring together constitute a cylindrical cavity, the inner walls on both sides of the cylindrical cavity are fixedly connected with a grid frame, each grid of the grid frame is fixedly connected with a fixed cover, the opposite surfaces of two adjacent fixed covers are fixedly connected with an elastic rod, the inner middle part of the cylindrical cavity is fixedly connected with a porous box, the porous box has two air cavities, and the two air cavities are respectively connected with a liquid inlet pipe and a liquid outlet pipe.

[0008] Preferably, the hydraulic metering assembly includes a hydraulic metering box fixedly connected to the inner wall of a fixed box, the inner walls on opposite sides of the hydraulic metering box are fixedly connected with slide rails, the inner walls on opposite sides of the hydraulic metering box are slidably connected with a pair of sliders, and the pair of sliders are slidably connected to the slide rails, the opposite surfaces of the pair of sliders constitute a compression zone, the compression zone is slidably connected with a telescopic box, the telescopic box contacts the opposite surfaces of the pair of sliders, a plurality of stabilizing blocks are fixedly connected to both sides of the telescopic box, the end of the stabilizing block away from the telescopic box is slidably connected with the slide rails, a plurality of electric push rods and a first pressure detector are fixedly connected to the opposite surface of the slider and the hydraulic metering box, a first pressure check valve is fixedly connected to the inner wall of the fixed box and located below the hydraulic metering box, the liquid inlet pipe passes through the fixed seat and the fixed box and is fixedly connected to the input end of the first pressure check valve, the output end of the first pressure check valve passes through the hydraulic metering box and is connected to the telescopic box through a hose, and a connecting pipe is fixedly connected to the top of the telescopic box.

[0009] Preferably, the hydraulic release assembly comprises an outer box fixedly connected to the inner wall of the fixed box, the inner walls on opposite sides of the outer box are fixedly connected with cooling pipes, a plurality of elastic seats and a plurality of second pressure detectors are alternately fixedly connected to the inner bottom of the outer box, and the elastic seats and the second pressure detectors are fixedly connected to the inner box at one end away from the outer box, a plurality of convex balls are fixedly connected to the four sides of the inner box in a rectangular array, and a stirrer is rotatably connected to the inner middle of the inner box; The agitator is composed of a rotating rod and a plurality of stirring blades, and a built-in motor for driving the rotating rod to rotate is arranged in the rotating rod, a plurality of installation grooves are opened on the surface of the stirring blade, and a crushing net is fixedly connected in each installation groove, a second pressure check valve is fixedly connected to the inner wall of the fixed box and located above the outer box, the liquid outlet pipe passes through the fixed seat, the fixed box and is fixedly connected to the input end of the second pressure check valve, a centrifugal pump is fixedly connected to the upper end surface of the outer box, the output end of the second pressure check valve is fixedly connected to the input end of the centrifugal pump through a pipeline, the output end of the centrifugal pump passes through the outer box and is fixedly connected to the inner box, and a release pipe is fixedly connected to the bottom of the inner box.

[0010] Preferably, the liquid exchange component includes a heating box fixedly connected to the inside of the workbench, a plurality of additive releasers are arranged on the top of the heating box, the additive releaser is composed of a controller and a storage rod, the controller is located on the upper end surface of the heating box, and the storage rod is located on the top of the heating box, the storage rod corresponds to the position of the liquid stirring component, the upper end surface of the heating box is respectively fixedly connected to the first water pump and the second water pump, the input end of the first water pump is fixedly connected to the first liquid guide tube, the end of the first liquid guide tube away from the first water pump is fixedly connected to the first three-way joint, the first three-way joint It is fixedly connected to the top of the workbench, and the release pipes of two adjacent hydraulic release components are connected to the first three-way joint, the input end of the second water pump is fixedly connected to the second liquid guide pipe, and the end of the second liquid guide pipe away from the second water pump is fixedly connected to the second three-way joint, the second three-way joint is fixedly connected to the inner top of the workbench, and the connecting pipes of adjacent hydraulic metering components are connected to the second three-way joint, the output ends of the first water pump and the second water pump are connected to the heating box through pipes, and the pipes extend to the inside of the heating box, and the pipes of the first water pump and the second water pump correspond to the positions of the liquid stirring components.

[0011] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects: 1. Through the fixture assembly, hydraulic metering assembly, hydraulic release assembly and liquid exchange assembly in the fixing mechanism, the corresponding pressurized liquid is injected into the fixture assembly through the hydraulic metering assembly, so that the fixing mechanism can change the corresponding clamping force of the fixing mechanism according to the different materials of the welded parts. Among them, the liquid exchange assembly is used to store and transmit liquid, and timely supplement the liquid with additives that are beneficial to its own stability. The hydraulic metering assembly can transmit the corresponding amount of liquid to the hydraulic metering assembly according to the material properties (i.e. material hardness) of the welded part clamped by the current fixture assembly. The hydraulic metering assembly squeezes the transmitted liquid accordingly to achieve the purpose of pressurizing the liquid, and injects the pressurized liquid into the fixture assembly, so that the clamping force of the fixture assembly meets the fixation of the current welded part, and the pressurized liquid in the fixture assembly after use can be released through the hydraulic release assembly, so that the liquid pressure returns to a normal value and is re-transmitted to the liquid exchange assembly. By injecting an appropriate amount of pressurized liquid into the fixture assembly through the hydraulic metering assembly, the best contact and fixing effect between the fixture and the workpiece can be achieved, ensuring that the workpiece will not be displaced during the welding process, thereby ensuring the accuracy and quality of the weld.

[0012] 2. The heat absorbing block and the suction component in the heat absorbing mechanism can realize the re-cooling of the fixture assembly during the welding process, and prevent the debris generated during the welding process of the welded parts from adhering to the fixture assembly, wherein the suction component is used to provide a suction source for the heat absorbing block to absorb the heat in the fixture assembly, and the heat absorbing block can gather the suction provided by the suction component to improve the efficiency of absorbing heat from the fixture assembly. The heat absorbing block and the suction component in the heat absorbing mechanism cooperate with the liquid to adjust the clamping force of the fixture, which can not only stabilize the liquid performance to ensure the accuracy of the clamping force of the fixture and avoid the deviation of the clamping force caused by welding heat, but also protect the fixture and liquid from high temperature damage, prevent the influence of debris, and extend their service life. At the same time, it can also improve welding quality and production efficiency, and reduce welding defects and downtime caused by fixture problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic structural diagram of the overall side of the present invention; Figure 3 It is a schematic diagram of the overall internal structure of the present invention; Figure 4 It is a structural schematic diagram of the fixing mechanism of the present invention; Figure 5 It is a structural schematic diagram of the side surface of the fixing mechanism of the present invention; Figure 6 It is a schematic diagram of the structure inside the clamp assembly of the present invention; Figure 7 It is a schematic diagram of the structure inside the fixed box of the present invention; Figure 8 It is a structural schematic diagram of the hydraulic metering assembly of the present invention; Fig. 9 It is a schematic diagram of the structure inside the hydraulic release assembly of the present invention; Fig.10 It is a schematic diagram of the structure inside the inner box of the present invention; Fig.11 It is a schematic diagram of the structure of the liquid exchange component of the present invention; Fig.12 It is a schematic structural diagram of the additive releaser of the present invention; Fig.13 It is a schematic structural diagram of the liquid stirring assembly of the present invention.

[0015] Figure numerals: 1, workbench; 11, welding support plate; 2, fixing mechanism; 21, fixing box; 22, fixing seat; 23, telescopic rod; 24, clamp assembly; 241, clamping plate; 242, connecting ring; 243, grid frame; 244, fixing cover; 245, elastic rod; 246, porous box; 247, liquid inlet pipe; 248, liquid outlet pipe; 25, hydraulic metering assembly; 251, hydraulic metering box; 252, slide rail; 253, slider; 254, electric push rod; 255, first pressure detector; 256, connecting pipe; 257, telescopic box; 258, stabilizing block; 259, first pressure check valve; 26, hydraulic release assembly; 261, outer box; 262, second pressure check valve; 263, centrifugal pump; 264. Cooling pipe; 265. Inner box; 266. Elastic seat; 267. Second pressure detector; 268. Release pipe; 269. Agitator; 2610. Crushing net; 27. Liquid exchange assembly; 271. Heating box; 272. Additive releaser; 273. First water pump; 274. First liquid guide pipe; 275. First three-way joint; 276. Second water pump; 277. Second liquid guide pipe; 278. Second three-way joint; 28. Temperature regulating rod; 29. ​​Liquid stirring assembly; 291. Stirring box; 292. Heating bowl; 293. Stirring fan; 294. Liquid detector; 3. Heat absorption mechanism; 31. Heat absorption block; 32. Air guide pipe; 33. Two-position three-way solenoid valve; 34. Air supply pipe; 35. Suction assembly. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] The present invention will be further described below in conjunction with the embodiments.

[0018] Example: Refer to Figures 1 to 13 , a multifunctional workbench, comprising: A workbench 1, the upper end surface of the workbench 1 is fixedly connected with a welding support plate 11; A fixing mechanism 2, the fixing mechanism 2 comprises a plurality of fixing boxes 21 fixedly connected in a rectangular array to the upper end surface of the welding support plate 11, a fixing seat 22 is fixedly connected to the center position of the opposite surface of each fixing box 21, a plurality of telescopic rods 23 are fixedly connected in a circular array on the side of the fixing seat 22 away from the fixing box 21, a clamp assembly 24 for clamping and fixing the welding workpiece is commonly provided on the side of the plurality of telescopic rods 23 away from the fixing seat 22, a hydraulic metering assembly 25 for pressurizing the liquid and a hydraulic release assembly 26 for relieving the pressure of the liquid are arranged side by side on the inner wall of the fixing box 21 and along the length direction, and the hydraulic metering assembly 25 and the hydraulic release assembly 26 are both connected to the clamp assembly 24, a liquid exchange assembly 27 for replacing the liquid in the clamp assembly 24 is provided at the inner bottom of the workbench 1, and a liquid stirring assembly 29 is provided inside the liquid exchange assembly 27; The heat absorbing mechanism 3 includes four heat absorbing blocks 31 fixedly connected to the edges of the four sides of the opposite sides of the fixed box 21. A suction component 35 providing suction to the heat absorbing blocks 31 is arranged inside the workbench 1, and the suction component 35 is connected to the heat absorbing blocks 31.

[0019] The liquid exchange component 27 in the fixing mechanism 2 is used to transport the liquid and to add additives to the liquid to maintain its own stability. The hydraulic metering component 25 can compress and calculate the corresponding liquid transported by the liquid exchange component 27 according to the material of the current weldment, so as to obtain the hydraulic pressure that meets the current weldment. The liquid pressurized by the hydraulic metering component 25 will be transmitted to the clamp component 24, so that the clamping force of the clamp component 24 changes to meet the clamping of the current weldment. When the material of the weldment clamped by the clamp component 24 changes, the pressurized liquid in the clamp component 24 will be released through the hydraulic release component 26, so that the liquid returns to the liquid stirring component 29.

[0020] Reference Figure 2 , Figure 4 , Figure 6 The clamp assembly 24 includes a pair of clamping plates 241 fixedly connected to one side of the telescopic rod 23, and the pair of clamping plates 241 have a gap, and a connecting ring 242 is fixedly connected to the gap of the pair of clamping plates 241. The pair of clamping plates 241 and the connecting ring 242 together constitute a cylindrical cavity, and the inner walls on both sides of the cylindrical cavity are fixedly connected with a grid frame 243, and each grid of the grid frame 243 is fixedly connected with a fixed cover 244, and the opposite surfaces of two adjacent fixed covers 244 are fixedly connected with an elastic rod 245, and the inner middle part of the cylindrical cavity is fixedly connected with a porous box 246, and the porous box 246 has two air cavities, and the two air cavities are respectively connected with a liquid inlet pipe 247 and a liquid outlet pipe 248.

[0021] A pair of clamping plates 241 in the clamp assembly 24 are used to fix and clamp the weldment. Since the connecting ring 242 is made of a composite material, it can adaptively expand and contract according to the amount of injected liquid. In order to ensure that the high pressure of the pressurized liquid will not affect the cylindrical cavity when the pressurized liquid is subsequently injected, a grid frame 243, a fixing cover 244 and an elastic rod 245 are arranged in the cylindrical cavity to maintain the stability of the clamp assembly 24 when clamping the weldment.

[0022] Reference Figures 7 and 8 The hydraulic metering assembly 25 includes a hydraulic metering box 251 fixedly connected to the inner wall of the fixed box 21, and the inner walls on opposite sides of the hydraulic metering box 251 are fixedly connected with slide rails 252. The inner walls on opposite sides of the hydraulic metering box 251 are slidably connected with a pair of sliders 253, and the pair of sliders 253 are slidably connected with the slide rails 252. The opposite surfaces of the pair of sliders 253 constitute a compression zone, and the compression zone is slidably connected with a telescopic box 257, and the telescopic box 257 contacts the opposite surfaces of the pair of sliders 253. Both sides of the telescopic box 257 are fixedly connected with a plurality of stabilizing blocks 258, and the stabilizing blocks 258 are away from the telescopic box 25 One end of the hydraulic pressure measuring box 251 is slidably connected to the slide rail 252, and the sliding block 253 is fixedly connected to the opposite surface of the hydraulic pressure measuring box 251 with a plurality of electric push rods 254 and a first pressure detector 255. The inner wall of the fixed box 21 and below the hydraulic pressure measuring box 251 is fixedly connected with a first pressure check valve 259, the liquid inlet pipe 247 passes through the fixed seat 22 and the fixed box 21 and is fixedly connected with the input end of the first pressure check valve 259, the output end of the first pressure check valve 259 passes through the hydraulic pressure measuring box 251 through a hose and is connected with the telescopic box 257, and the top of the telescopic box 257 is fixedly connected with a connecting pipe 256.

[0023] By utilizing the slider 253 and the electric push rod 254 in the hydraulic metering assembly 25, the liquid stored in the telescopic box 257 can be compressed so that the pressure of the liquid stored in the telescopic box 257 meets the hardening requirements of the current weldment, and the pressurization of the liquid can be detected in real time by the first pressure detector 255, thereby avoiding over-pressurization or under-pressurization of the liquid in the telescopic box 257.

[0024] Reference Figures 9 and 10 The hydraulic release assembly 26 includes an outer box 261 fixedly connected to the inner wall of the fixed box 21, the inner walls of the outer box 261 on opposite sides are fixedly connected with cooling pipes 264, a plurality of elastic seats 266 and a plurality of second pressure detectors 267 are alternately fixedly connected to the inner bottom of the outer box 261, and the elastic seats 266 and the second pressure detectors 267 are fixedly connected to the inner box 265 at one end away from the outer box 261, a plurality of convex balls are fixedly connected to the four sides of the inner box 265 in a rectangular array, and a stirrer 269 is rotatably connected to the inner middle of the inner box 265; The agitator 269 is composed of a rotating rod and a plurality of stirring blades, and a built-in motor for driving the rotating rod to rotate is arranged inside the rotating rod, a plurality of mounting grooves are provided on the surface of the stirring blade, and a crushing net 2610 is fixedly connected in each mounting groove, a second pressure check valve 262 is fixedly connected to the inner wall of the fixed box 21 and located above the outer box 261, a liquid outlet pipe 248 passes through the fixed seat 22, the fixed box 21 and is fixedly connected to the input end of the second pressure check valve 262, a centrifugal pump 263 is fixedly connected to the upper end surface of the outer box 261, the output end of the second pressure check valve 262 is fixedly connected to the input end of the centrifugal pump 263 through a pipeline, the output end of the centrifugal pump 263 passes through the outer box 261 and is fixedly connected to the inner box 265, and a release pipe 268 is fixedly connected to the bottom of the inner box 265.

[0025] The cooling pipe 264 in the hydraulic release assembly 26 can be used to cool the liquid stored in the inner box 265, and the liquid stored in the inner box 265 can be stirred by the agitator 269, so as to enhance the cooling effect of the liquid in the cooling pipe 264. At the same time, by setting a crushing net 2610 in the stirring blade of the agitator 269, the solidified liquid particles in the liquid can be crushed.

[0026] Reference Figure 11 to Figure 12The liquid exchange component 27 includes a heating box 271 fixedly connected to the inside of the workbench 1. A plurality of additive releasers 272 are arranged on the top of the heating box 271. The additive releaser 272 consists of a controller and a storage rod. The controller is located on the upper end surface of the heating box 271, and the storage rod is located on the top of the heating box 271. The storage rod corresponds to the position of the liquid stirring component 29. The upper end surface of the heating box 271 is respectively fixedly connected to a first water pump 273 and a second water pump 276. The input end of the first water pump 273 is fixedly connected to a first liquid guide tube 274. The end of the first liquid guide tube 274 away from the first water pump 273 is fixedly connected to a first three-way joint 275. The first three-way joint 275 is fixedly connected to the workbench 1. The inner top, and the release pipes 268 of the two adjacent hydraulic release components 26 are connected to the first three-way joint 275, the input end of the second water pump 276 is fixedly connected to the second liquid guide pipe 277, and the end of the second liquid guide pipe 277 away from the second water pump 276 is fixedly connected to the second three-way joint 278, the second three-way joint 278 is fixedly connected to the inner top of the workbench 1, and the connecting pipe 256 of the adjacent hydraulic metering component 25 is connected to the second three-way joint 278, the output ends of the first water pump 273 and the second water pump 276 are connected to the heating box 271 through pipes, and the pipes extend to the inside of the heating box 271, and the pipes of the first water pump 273 and the second water pump 276 correspond to the positions of the liquid stirring component 29.

[0027] A plurality of temperature regulating rods 28 are symmetrically fixedly connected to the inner wall of the heating box 271. The liquid stirring assembly 29 includes a stirring box 291 fixedly connected to the inner bottom of the heating box 271. A plurality of heated bowls 292 are fixedly connected in rectangular arrays on both sides of the stirring box 291 facing the temperature regulating rods 28. A pair of stirring fans 293 are rotatably connected to the inner bottom of the stirring box 291. A liquid detector 294 is fixedly connected to the inner bottom of the stirring box 291.

[0028] By utilizing the heating box 271 and the temperature regulating rod 28 in the liquid exchange component 27, the temperature of the stored liquid in the liquid stirring component 29 can be maintained at the optimal storage temperature at all times, and the additive releaser 272 can replenish the missing additives in time according to the liquid, and realize the reflux treatment of the liquid in the hydraulic release component 26 through the first water pump 273, the first liquid conduit 274 and the first three-way joint 275, and the second water pump 276, the second liquid conduit 277 and the second three-way joint 278 can realize the transmission of liquid to the hydraulic metering component 25.

[0029] Reference Figures 4 to 5The sides of the heat absorption block 31 are fixedly connected with an air duct 32, and the side of the fixed box 21 away from the fixing mechanism 2 is fixedly connected with a two-position three-way solenoid valve 33. The two-position three-way solenoid valve 33 has two input ends and one output end. The two input ends of the two-position three-way solenoid valve 33 are respectively connected with the air ducts 32 on both sides, and the output end of the two-position three-way solenoid valve 33 is fixedly connected with an air supply pipe 34. The end of the air supply pipe 34 away from the two-position three-way solenoid valve 33 is connected with the suction component 35.

[0030] By using the two-position three-way solenoid valve 33 and the air supply pipe 34, the suction generated by the suction assembly 35 can be transmitted to the heat absorption block 31, so that the heat absorption block 31 fixes the clamp assembly 24 and simultaneously removes welding debris attached to the clamp assembly 24 when the clamp assembly 24 clamps the weldment.

[0031] The operating principle of this embodiment is as follows: First, the weldment is placed on the workbench, and then the controller starts the second water pump 276, so that the liquid containing additives stored in the mixing box 291 is sucked by the second water pump 276 (the liquid stored in the mixing box 291 has good fluidity, low compressibility and chemical stability, such as: mineral oil, phosphate synthetic oil and water glycol mixture, etc., and the additive added to the liquid must have thermal stability, including high temperature oxidation resistance to prevent the mineral oil from oxidizing and deteriorating, and low volatility to avoid loss at high temperature; at the same time, it must have compatibility with the mineral oil, that is, good solubility to be evenly dispersed, and no chemical reaction with the mineral oil, such as: antioxidants, metal passivators and The second water pump 276 is used to transfer the liquid from the second liquid conduit 277 to the second three-way joint 278, and the second three-way joint 278 can divert the liquid transferred by the second liquid conduit 277 to the connecting pipe 256, and the connecting pipe 256 can further transfer the liquid to the telescopic box 257. When the liquid is input into the telescopic box 257, the electric push rod 254 starts to start, thereby driving the slider 253 to slide along the slide rail 252, thereby squeezing the telescopic box 257 (when the slider 253 squeezes the telescopic box 257, the second water pump 276 will not work, and the second water pump 276 will play a sealing role, so the slider 253 squeezes the telescopic box 257 When the second water pump 276 and the first pressure check valve 259 act, the telescopic box 257 will be in a sealed state. As the electric push rod 254 continuously pushes the slider 253 to squeeze the telescopic box 257, the liquid in the telescopic box 257 will be compressed, and the first pressure detector 255 will detect the pressure value of the telescopic box 257 after compression (due to the interaction between liquid molecules, including attraction and repulsion, the degree of compression of the liquid is very small). Therefore, when the pressure value detected by the first pressure detector 255 reaches the target pressure value set according to the material characteristics of the weld (the set target pressure value is determined by the welding material, such as: aluminum alloy workpieces are usually clamped by the clamps to the pressure The force is about 20-50N / cm², and the pressure of the copper alloy workpiece clamp is generally about 30-60N / cm²). The electric push rod 254 stops working. At this time, the liquid in the telescopic box 257 is in a pressure state that meets the pressure required for fixing the current weldment. If it does not meet the requirements, the second water pump 276 will further transmit liquid to the telescopic box 257, thereby increasing the amount of liquid in the telescopic box 257 until the set target pressure is met. Then, the first pressure check valve 259 will open, thereby transmitting the detected liquid in the telescopic box 257 to the clamp assembly 24 through the elastic rod 245, so that the clamping force of the clamp assembly 24 changes, so that the current weldment can be better clamped and fixed.

[0032] When the telescopic box 257 transfers liquid to the clamp assembly 24, the electric push rod 254 will work again, thereby squeezing the telescopic box 257 again, so as to achieve the transfer of all the liquid in the telescopic box 257 to the clamp assembly 24. When all the liquid in the telescopic box 257 is squeezed into the clamp assembly 24 (when all the liquid in the telescopic box 257 is squeezed into the clamp assembly 24, the telescopic box 257 is in a fully compressed state), the first pressure check valve 259 will be closed again; When all the liquid enters the cylindrical cavity formed by the clamping disk 241 and the connecting ring 242 in the clamp assembly 24 (the connecting ring 242 is made of a layered composite material, so that the connecting ring 242 can only be compressed horizontally but cannot be shaken left and right), the connecting ring 242 can adaptively expand and contract according to the amount of liquid injected. Specifically, as the liquid is injected, the connecting ring 242 will gradually expand under the action of the liquid pressure, so that the distance between the pair of clamping disks 241 increases, thereby better adapting to welded parts of different sizes. Conversely, when the amount of liquid decreases, the connecting ring 242 will contract, so that the clamping disk 241 can clamp the welded part more tightly, and the telescopic rod 23 can provide pressure for the clamp assembly 24 to clamp the welded part. At the same time, in order to ensure that when the pressurized liquid is injected into the clamp assembly 24 or the welded parts of the subsequent clamp assembly 24 are clamped, the high pressure of the pressurized liquid will not affect the cylindrical cavity formed by the clamping disk 241 and the connecting ring 242 in the clamp assembly 24, a grid frame 243, a fixed cover 244 and an elastic rod 245 are set in the cylindrical cavity. The grid frame 243 is located on the opposite side of the inner wall of the cylindrical cavity. Its grid structure can evenly disperse the pressure of the pressurized liquid to the inner wall of the entire cylindrical cavity to avoid deformation of the cylindrical cavity caused by excessive local pressure, and the fixed cover 244 is installed at each of the grid frame 243. At the grid, it can not only further disperse the pressure, but also play a role in positioning and supporting the elastic rod 245, and use the elastic rod 245 to connect the adjacent fixed cover 244. Since the elastic rod 245 is elastic, when the pressurized liquid enters the cylindrical cavity, the elastic rod 245 can undergo a certain degree of elastic deformation under the action of pressure, absorb and buffer part of the pressure, and prevent the pressure from directly impacting the grid frame 243 and the fixed cover 244, thereby maintaining the stability of the clamp assembly 24 when clamping the welded part, ensuring that the welded part will not be displaced due to the instability of the clamp assembly 24 during the welding process, thereby ensuring the welding quality.

[0033] Among them, when welding is completed, the controller will start the hydraulic release component 26, and the centrifugal pump 263 in the hydraulic release component 26 will work to extract the pressurized liquid in the clamp component 24 through the liquid outlet pipe 248, and enter the inner box 265 after passing through the second pressure check valve 262 and the centrifugal pump 263. In the inner box 265, the cooling pipe 264 will cool the liquid (the increase in temperature will reduce the fluidity of the liquid, increase the viscosity, and the compressibility may also change. The cooling effect of the cooling pipe 264 helps to maintain the good fluidity and low compressibility of the liquid), the agitator 269 will stir the liquid, and the crushing net 2610 will crush the solidified particles that may exist. Then, the first water pump 273 starts to start, and the liquid is collected in the first three-way joint 275 through the release pipe 268, and through the first liquid guide pipe 274, the liquid is returned to the liquid stirring component 29, thereby completing a working cycle to prepare for the next welding operation.

[0034] Among them, the temperature regulating rod 28 (the temperature regulating rod 28 is the prior art, and has both heating and cooling functions) can maintain the temperature of the liquid stored in the liquid stirring component 29 at the optimal storage temperature of about 20°C, and the heating box 271 is made of thermal insulation material, so the temperature regulating rod 28 can accurately control the temperature in the heating box 271 to ensure that the liquid in the liquid stirring component 29 is always in the temperature environment most suitable for maintaining its performance, and the liquid detector 294 (the liquid detector 294 has the same function as the spectrophotometer detector and the electrochemical detector in the prior art) can detect the lack of additives in the liquid, and the additive releaser 272 can replenish the liquid in time according to the lack of additives. Since the liquid will be damaged during long-term use, Due to various reasons (such as chemical reactions, volatilization, etc.) that cause the content of certain additives to decrease, the additive releaser 272 under the control of the controller wants to be able to determine whether the additives need to be supplemented according to the relevant parameters detected by the liquid detector 294. When supplementation is needed, the storage rod in the corresponding additive releaser 272 will release the stored additives into the liquid in the mixing box 291 (each additive releaser 272 stores different types of additives). These additives are essential to maintaining the performance of the liquid. For example, antioxidants can prevent the liquid from oxidizing and deteriorating, metal passivators can prevent metal parts from corroding in the liquid, and viscosity index improvers can maintain the appropriate viscosity of the liquid, thereby ensuring that the liquid can flow and function normally in the entire system.

[0035] When the liquid in the mixing box 291 is replenished with additives (after the liquid detector 294 detects that the liquid additive is normal, it will feedback information to the controller, and the controller will control the additive releaser 272 to stop releasing the additive), the mixing fan 293 starts to start, so that the additive and the liquid are mixed evenly, thereby completing the replenishment of the additive to the liquid.

[0036] At the same time: the heat absorption block 31 and the suction component 35 in the heat absorption mechanism 3 can realize the cooling of the clamp component 24 during the welding process and prevent the debris generated during the welding process of the welded parts from adhering to the clamp component 24, wherein the suction component 35 is used to provide a suction source for the heat absorption block 31 to absorb the heat in the clamp component 24 (the suction component 35 is composed of a vacuum pump and a debris box), and the heat absorption block 31 can gather the suction provided by the suction component 35, and transmit it to the suction component 35 through the two-position three-way solenoid valve 33 and the air guide pipe 32, so as to enhance the heat absorption efficiency in the clamp component 24, and through By controlling the opening and closing of the two-position three-way solenoid valve 33, the transmission of suction can be precisely controlled to ensure that suction is provided to the heat absorption block 31 when needed. The heat absorption block 31 and the suction component 35 in the heat absorption mechanism 3 cooperate with the liquid to adjust the clamping force of the clamp. This can not only stabilize the liquid performance to ensure the accuracy of the clamping force and avoid the deviation of the clamping force due to welding heat, but also protect the clamp and liquid from high temperature damage and debris, thereby extending their service life. At the same time, it can also improve welding quality and production efficiency, reduce welding defects and downtime caused by clamp problems, thereby completing the cooling of the clamp assembly 24.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multifunctional workbench, characterized in that: include: A workbench (1), wherein the upper end surface of the workbench (1) is fixedly connected to a welding support plate (11); A fixing mechanism (2), the fixing mechanism (2) comprising a plurality of fixing boxes (21) fixedly connected in a rectangular array to the upper end surface of the welding support plate (11), a fixing seat (22) being fixedly connected at the center position of the opposite surface of each fixing box (21), a plurality of telescopic rods (23) being fixedly connected in a circular array on a side of the fixing seat (22) away from the fixing box (21), a clamp assembly (24) for clamping and fixing the welding workpiece being provided on a side of the plurality of telescopic rods (23) away from the fixing seat (22), a hydraulic metering assembly (25) for pressurizing a liquid and a hydraulic release assembly (26) for relieving pressure on the liquid being provided side by side on the inner wall of the fixing box (21) and along the length direction, and the hydraulic metering assembly (25) and the hydraulic release assembly (26) are both connected to the clamp assembly (24), a liquid exchange assembly (27) for replacing liquid in the clamp assembly (24) being provided on the inner bottom of the workbench (1), and a liquid stirring assembly (29) being provided inside the liquid exchange assembly (27); A heat absorbing mechanism (3), the heat absorbing mechanism (3) comprising four heat absorbing blocks (31) fixedly connected to the edges of the four sides of the opposite surfaces of the fixed box (21), a suction component (35) for providing suction to the heat absorbing blocks (31) being arranged inside the workbench (1), and the suction component (35) being in communication with the heat absorbing blocks (31); The clamp assembly (24) comprises a pair of clamping plates (241) fixedly connected to one side of the telescopic rod (23), and the pair of clamping plates (241) have a gap, a connecting ring (242) is fixedly connected at the gap of the pair of clamping plates (241), the pair of clamping plates (241) and the connecting ring (242) together form a cylindrical cavity, the inner walls of both sides of the cylindrical cavity are fixedly connected to a grid frame (243), each grid of the grid frame (243) is fixedly connected to a fixed cover (244), the opposite surfaces of two adjacent fixed covers (244) are fixedly connected to an elastic rod (245), and the inner middle part of the cylindrical cavity is fixedly connected to a porous box (246), the porous box (246) has two air cavities, and the two air cavities are respectively connected to a liquid inlet pipe (247) and a liquid outlet pipe (248); The hydraulic metering assembly (25) comprises a hydraulic metering box (251) fixedly connected to the inner wall of the fixed box (21); the inner walls on opposite sides of the hydraulic metering box (251) are fixedly connected to slide rails (252); the inner walls on opposite sides of the hydraulic metering box (251) are slidably connected to a pair of sliders (253); the pair of sliders (253) are slidably connected to the slide rails (252); the opposite surfaces of the pair of sliders (253) form a compression zone; the compression zone is slidably connected to a telescopic box (257); the telescopic box (257) is in contact with the opposite surfaces of the pair of sliders (253); the two sides of the telescopic box (257) are fixedly connected to a plurality of stabilizing blocks (258); the stabilizing blocks (258) are away from the telescopic box ( One end of the hydraulic pressure measuring box (257) is slidably connected to the slide rail (252), the sliding block (253) is fixedly connected to a plurality of electric push rods (254) and a first pressure detector (255) on the opposite surface of the hydraulic pressure measuring box (251), a first pressure check valve (259) is fixedly connected to the inner wall of the fixed box (21) and below the hydraulic pressure measuring box (251), the liquid inlet pipe (247) passes through the fixed seat (22) and the fixed box (21) and is fixedly connected to the input end of the first pressure check valve (259), the output end of the first pressure check valve (259) passes through the hydraulic pressure measuring box (251) and is connected to the telescopic box (257) through a hose, and the top of the telescopic box (257) is fixedly connected to a connecting pipe (256); The hydraulic release assembly (26) comprises an outer box (261) fixedly connected to the inner wall of the fixed box (21), the inner walls of the outer box (261) on opposite sides are fixedly connected to cooling pipes (264), the inner bottom of the outer box (261) is alternately fixedly connected to a plurality of elastic seats (266) and a plurality of second pressure detectors (267), and the elastic seats (266) and the second pressure detectors (267) are fixedly connected to an inner box (265) at one end away from the outer box (261), the inner box (265) is fixedly connected to a plurality of convex balls in a rectangular array around the periphery, and the inner middle of the inner box (265) is rotatably connected to a stirrer (269); The stirrer (269) is composed of a rotating rod and a plurality of stirring blades, and a built-in motor for driving the rotating rod to rotate is arranged in the rotating rod. A plurality of mounting grooves are provided on the surface of the stirring blade, and a crushing net (2610) is fixedly connected in each mounting groove. A second pressure check valve (262) is fixedly connected to the inner wall of the fixed box (21) and located above the outer box (261). The liquid outlet pipe (248) passes through the fixed seat (22), the fixed box (21) and is fixedly connected to the input end of the second pressure check valve (262). A centrifugal pump (263) is fixedly connected to the upper end surface of the outer box (261). The output end of the second pressure check valve (262) is fixedly connected to the input end of the centrifugal pump (263) through a pipeline. The output end of the centrifugal pump (263) passes through the outer box (261) and is fixedly connected to the inner box (265). A release pipe (268) is fixedly connected to the bottom of the inner box (265). The liquid exchange component (27) comprises a heating box (271) fixedly connected to the inside of the workbench (1); a plurality of additive releasers (272) are arranged on the top of the heating box (271); the additive releasers (272) are composed of a controller and a storage rod; the controller is located on the upper end surface of the heating box (271); the storage rod is located on the top of the heating box (271); the storage rod corresponds to the position of the liquid stirring component (29); the upper end surface of the heating box (271) is respectively fixedly connected to a first water pump (273) and a second water pump (276); the input end of the first water pump (273) is fixedly connected to a first liquid guide tube (274); one end of the first liquid guide tube (274) away from the first water pump (273) is fixedly connected to a first three-way joint (275); the first three-way joint (275) is fixedly connected to the workbench (1) inner top, and the release pipes (268) of two adjacent hydraulic release components (26) are connected to the first three-way joint (275), the input end of the second water pump (276) is fixedly connected to the second liquid guide pipe (277), the end of the second liquid guide pipe (277) away from the second water pump (276) is fixedly connected to the second three-way joint (278), the second three-way joint (278) is fixedly connected to the inner top of the workbench (1), and the connecting pipe (256) of the adjacent hydraulic metering component (25) is connected to the second three-way joint (278), the output ends of the first water pump (273) and the second water pump (276) are both connected to the heating box (271) through pipelines, and the pipelines extend to the inside of the heating box (271), and the pipelines of the first water pump (273) and the second water pump (276) correspond to the positions of the liquid stirring component (29); The inner wall of the heating box (271) is symmetrically and fixedly connected to a plurality of temperature regulating rods (28); the liquid stirring assembly (29) comprises a stirring box (291) fixedly connected to the inner bottom of the heating box (271); a plurality of heated bowls (292) are fixedly connected in a rectangular array on both sides of the stirring box (291) facing the temperature regulating rods (28); a pair of stirring fans (293) are rotatably connected to the inner bottom of the stirring box (291); and a liquid detector (294) is fixedly connected to the inner bottom of the stirring box (291); The side surfaces of the heat absorbing block (31) are fixedly connected to an air guide pipe (32); a side of the fixed box (21) away from the fixing mechanism (2) is fixedly connected to a two-position three-way solenoid valve (33); the two-position three-way solenoid valve (33) has two input ends and one output end; the two input ends of the two-position three-way solenoid valve (33) are respectively connected to the air guide pipes (32) on both sides; the output end of the two-position three-way solenoid valve (33) is fixedly connected to an air supply pipe (34); the end of the air supply pipe (34) away from the two-position three-way solenoid valve (33) is connected to a suction component (35).

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