Air conditioner sheet metal part welding positioning device

Abstract

The invention belongs to the technical field of sheet metal machining, and relates to an air conditioner sheet metal part welding and positioning device which comprises a positioning base provided with a positioning table used for placing a to-be-welded sheet metal part; the clamp assembly is arranged on the positioning base and can ascend and descend above the positioning table so as to compress or loosen the to-be-welded sheet metal part; the clamp assembly comprises a plurality of movable pressing induction pieces, and the multiple pressing induction pieces are used for pressing multiple different positions of the to-be-welded sheet metal part when the clamp assembly descends. A to-be-welded sheet metal part is preliminarily positioned to a positioning table; the clamp assembly is operated to descend so that the multiple pressing induction pieces can press the multiple different positions of the to-be-welded sheet metal part, the pressure value of each pressing position is monitored, and once it is found that the pressure is unbalanced, the positions of the pressing induction pieces can be adjusted so that the pressure of the pressing positions can be balanced, and accurate positioning in the sheet metal part welding process can be achieved. The method has the advantages of high welding quality, high detection efficiency, low welding cost and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of sheet metal processing, and particularly to a welding positioning device for air conditioner sheet metal parts. Background Art

[0002] During the manufacturing process of air conditioners, sheet metal parts are important components that make up key structures such as the air conditioner housing. Traditional welding methods usually rely on manual simple alignment and fixation, which have problems such as inaccurate positioning and low efficiency. When placing sheet metal parts by experience, small deviations are likely to occur, and these deviations will cause problems such as unevenness of the overall structure of the air conditioner, decreased sealing performance, and difficulty in assembling components after welding. In order to improve the quality requirements of sheet metal part welding, it is urgent to develop an efficient and precise welding positioning device to meet the needs of automated production and ensure the stability of product quality. Summary of the Invention

[0003] The purpose of the present invention is to provide a welding positioning device for air conditioner sheet metal parts, aiming to solve the problems of inaccurate positioning and low efficiency existing in the traditional welding of sheet metal parts that rely on manual simple alignment and fixation.

[0004] To solve the above technical problems, the purpose of the present invention is achieved through the following technical solutions: providing a welding positioning device for air conditioner sheet metal parts, including:

[0005] A positioning base provided with a positioning table for placing the sheet metal parts to be welded;

[0006] A fixture assembly arranged on the positioning base and capable of lifting movement above the positioning table to press or release the sheet metal parts to be welded;

[0007] Wherein, the fixture assembly includes a plurality of movable pressing sensors, and the plurality of pressing sensors are used to press different positions of the sheet metal parts to be welded when the fixture assembly descends and detect the pressure value of each pressing position; the plurality of pressing sensors are also used to move so that the pressure values of each pressing position reach equilibrium.

[0008] Further, the welding positioning device for air conditioner sheet metal parts further includes:

[0009] A sensing control module arranged on the positioning base and electrically connected to the pressing sensors; the sensing control module is used to monitor the pressure values of the plurality of pressing sensors.

[0010] Further, a plurality of positioning parts are provided on the positioning table, and the plurality of positioning parts are used to cooperate with the notches or positioning holes provided on the sheet metal parts to be welded for positioning when the sheet metal parts to be welded are placed on the positioning table.

[0011] Further, one end of the fixture assembly is rotatably connected to one side of the positioning table, and the other end of the fixture assembly extends to the other side of the positioning table. The fixture assembly can perform rotational lifting movement with one end as the rotation point.

[0012] Further, an installation rod is provided on one side of the positioning table. One end of the fixture assembly is installed on the installation rod, and a plurality of the fixture assemblies are arranged side by side along the axial direction of the installation rod.

[0013] Further, the fixture assembly further includes:

[0014] A lifting pressure rod, one end of which is rotatably connected to the installation rod, and the other end extends to the other side of the positioning table. The plurality of pressing sensors are arranged side by side on the lifting pressure rod;

[0015] A lifting driving member, fixedly installed on one side of the positioning table or on the installation rod. The lifting driving member is connected to the lifting pressure rod and is used to drive the lifting pressure rod to perform rotational lifting.

[0016] Further, the lifting driving member includes:

[0017] A fixed block, fixedly installed on one side of the positioning table or on the installation rod;

[0018] A telescopic rod, one end of which is fixedly connected to the fixed block;

[0019] A sliding block, installed at the other end of the telescopic rod, and the sliding block is slidably sleeved on the lifting pressure rod;

[0020] Wherein, when the telescopic rod drives the sliding block to move back and forth on the lifting pressure rod, the telescopic rod is used to drive the lifting pressure rod to perform rotational lifting movement.

[0021] Further, the pressing sensor includes:

[0022] A clamping piece, clamped on the lifting pressure rod;

[0023] A lead screw nut, passing through the clamping piece and capable of rotatably adjusting the clamping force of the clamping piece clamped on the lifting pressure rod;

[0024] A pressure sensor, arranged at the bottom of the lead screw nut and used to press the sheet metal part to be welded when the fixture assembly descends.

[0025] Further, both ends of the clamping piece symmetrically extend outward relative to both sides of the lifting pressure rod. Two lead screw nuts are respectively arranged at both ends of the clamping piece, and two pressure sensors are respectively arranged at the bottoms of the two lead screw nuts;

[0026] Wherein, the pressure sensor is elastically installed at the bottom of the lead screw nut.

[0027] Further, a barb is provided on the other side of the positioning table, and the barb is used to hook and tighten the other end of the fixture assembly after the other end of the fixture assembly descends.

[0028] Compared with the prior art, the air-conditioning sheet metal part welding positioning device of the present invention has at least the following beneficial effects:

[0029] The sheet metal part to be welded is preliminarily positioned by the positioning table; then the fixture assembly is operated to descend so that a plurality of pressing and sensing parts press down on a plurality of different positions of the sheet metal part to be welded, and the pressure value at each pressing position is monitored. Once it is found that the pressure is uneven, the position of the pressing and sensing parts can be adjusted to make the pressure at each pressing position reach an equilibrium state, so as to stably provide precise positioning for sheet metal part welding. It has the advantages of high welding quality, high detection efficiency and low welding cost.

[0030] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly and implement it according to the content of the specification, the following takes the preferred embodiment of the present invention and combines the accompanying drawings to describe in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other accompanying drawings can be obtained based on these drawings without creative efforts.

[0032] Figure 1 It is a schematic three-dimensional structure diagram of the air-conditioning sheet metal part welding positioning device provided by the embodiment of the present invention.

[0033] Figure 2 It is a schematic side view structure diagram of the air-conditioning sheet metal part welding positioning device provided by the embodiment of the present invention.

[0034] Figure 3 It is another schematic side view structure diagram of the air-conditioning sheet metal part welding positioning device provided by the embodiment of the present invention.

[0035] Figure 4 It is a schematic top view structure diagram of the air-conditioning sheet metal part welding positioning device provided by the embodiment of the present invention.

[0036] Figure 5 For the embodiment of the present invention Figure 1 The enlarged structure schematic diagram of the partial A.

[0037] Figure 6Provided by an embodiment of the present invention Figure 1 Schematic diagram of the enlarged structure of local B in

[0038] Figure 7 Provided by an embodiment of the present invention Figure 2 Schematic diagram of the enlarged structure of local C in

[0039] Explanation of the markings in the figure:

[0040] 1. Positioning base; 11. Positioning table; 12. Mounting rod; 13. Barbs

[0041] 2. Fixture assembly; 21. Pressing sensor; 211. Clamping piece; 212. Lead screw nut; 213. Pressure sensor; 22. Lifting pressure rod; 221. Rotating block; 23. Lifting driving part; 231. Fixed block; 232. Expansion link; 233. Sliding block

[0042] 3. Sensing control module

[0043] 100. Sheet metal part Specific implementation manners

[0044] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following, in combination with the attached drawings and preferred embodiments, details the specific implementation manners, structures, features, and their effects of the application according to the present invention. In the following description, different "one embodiment" or "embodiment" do not necessarily refer to the same embodiment. In addition, the specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form

[0045] In the description of the present invention, it should be clear that the terms "first", "second", etc. in the specification and claims of the present invention and the above drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence; the terms "vertical", "horizontal", "longitudinal", "front", "rear", "left", "right", "up", "down", "horizontal", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention, rather than meaning that the indicated device or element must have a specific orientation or position, so it cannot be understood as a limitation of the present invention

[0046] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "mounting", "connecting", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations

[0047] See also Figures 1 to 4 , Figures 1 to 4 A schematic diagram of the structure of the air conditioner sheet metal welding positioning device from different perspectives provided by an embodiment of the present invention.

[0048] An embodiment of the present invention provides a welding positioning device for air conditioner sheet metal parts, comprising:

[0049] The positioning base 1 is provided with a positioning platform 11 for placing the sheet metal part 100 to be welded;

[0050] The clamp assembly 2 is disposed on the positioning base 1 and can be lifted and lowered above the positioning platform 11 to achieve the pressing or loosening of the sheet metal part 100 to be welded;

[0051] Among them, the clamp assembly 2 includes multiple movable clamping sensors 21, which are used to press down multiple different positions of the sheet metal part 100 to be welded when the clamp assembly 2 descends, and detect the pressure value of each pressing position; the multiple clamping sensors 21 are also used to move so that the pressure value of each pressing position is balanced.

[0052] In this embodiment, the positioning base 1 can be a stable support structure, and its material is preferably high-strength steel, so as to ensure that it can bear the weight of the fixture assembly 2 and the sheet metal 100 to be welded during the welding process, while maintaining the overall stability and accuracy. The positioning platform 11 is a plane on the positioning base 1, which is used to place the sheet metal 100 to be welded. The fixture assembly 2 can effectively fix and press the sheet metal 100 to be welded. The lifting and lowering movement of the fixture assembly 2 can be achieved by a transmission mechanism to ensure the stability and accuracy of the lifting and lowering. During the descent of the fixture assembly 2, multiple pressing sensors 21 can be pressed down together to ensure that the sheet metal 100 to be welded is evenly stressed, avoiding deformation problems caused by uneven stress. At the same time, the multiple pressing sensors 21 of the fixture assembly 2 also have the function of detecting pressure values, and can monitor the pressure value of each pressing position in real time. Once the pressure is found to be uneven, the position of the pressing sensor 21 can be adjusted to make the pressure of each pressing position reach a balanced state, thereby stably providing accurate positioning for the welding of the sheet metal 100.

[0053] In one embodiment, the air conditioner sheet metal welding positioning device further includes:

[0054] The sensor control module 3 is disposed on the positioning base 1 and is electrically connected to the pressing sensing element 21 ; the sensor control module 3 is used to monitor the pressure values ​​of the plurality of pressing sensing elements 21 .

[0055] In this embodiment, the sensing and control module 3 is configured to receive multiple pressure values generated when multiple pressing sensors 21 press down on the sheet metal parts 100 to be welded, and compare these pressure values with a preset pressure threshold. If any of the pressure values exceeds or is lower than the preset threshold range, the sensing and control module 3 can immediately trigger an alarm signal to prompt the operator to adjust the position of the corresponding pressing sensor 21 to ensure that the multiple pressure values can reach equilibrium, that is, to ensure that the sheet metal parts 100 to be welded are subjected to uniform and appropriate pressure during the welding process. Such a design not only improves the welding accuracy but also effectively avoids welding defects caused by uneven pressure, enhancing the overall production efficiency and product quality.

[0056] In this embodiment, a display screen is provided on the sensing and control module 3 for real-time display of the pressure values of each pressing sensor 21 and the preset pressure threshold range. The operator can intuitively understand the pressure state during the current welding process by observing the data on the display screen, so as to make adjustments more quickly and accurately. In addition, the display screen also has a historical data recording function, which can store the pressure data of each welding, facilitating subsequent data analysis and quality traceability. Such a design further enhances the operability and intelligent level of the system.

[0057] In one embodiment, a plurality of positioning parts (not shown in the figure) are provided on the positioning table 11, and the plurality of positioning parts are used to cooperate with the notches or positioning holes (not shown in the figure) provided on the sheet metal parts 100 to be welded when the sheet metal parts 100 to be welded are placed on the positioning table 11 for positioning.

[0058] In this embodiment, the positioning part can be provided in a convex shape (such as a positioning post), which is adapted to the preset notches or positioning holes on the sheet metal parts 100 to be welded, so as to realize the preliminary positioning of the sheet metal parts 100 to be welded on the positioning table 11 and provide a basis for the precise fixation of the subsequent fixture assembly 2. In addition, the cooperation mode between the positioning part and the sheet metal parts 100 to be welded can be plug-in, threaded connection, magnetic adsorption, etc. The specific selection depends on the material, size of the sheet metal parts 100 to be welded and the requirements of the welding process, so as to improve the flexibility and convenience of positioning while ensuring the positioning accuracy.

[0059] In one embodiment, one end of the fixture assembly 2 is rotatably connected to one side of the positioning table 11, and the other end of the fixture assembly 2 extends to the other side of the positioning table 11. The fixture assembly 2 can perform rotational lifting movement with one end as the rotation point.

[0060] In this embodiment, the lifting movement design of the fixture assembly 2 adopts a rotary mechanism. Through the rotary action, the lifting movement of the fixture assembly 2 in the vertical direction is realized, so as to achieve the purpose of pressing or loosening the sheet metal parts 100 to be welded.

[0061] It should be understood that the rotational power of the fixture assembly 2 can be provided in various ways such as electrically, pneumatically, or manually. The electric method is driven by a motor and can precisely control the rotational angle and speed of the fixture assembly 2, which is particularly suitable for application scenarios with high precision requirements. The pneumatic method uses air pressure to drive the rotation of the fixture assembly 2, featuring a simple structure and rapid operation. The manual method relies on manual operation. Although the control precision is relatively low, it does not require an external power source and is more flexible in operation. According to different application scenarios and specific requirements, the most suitable rotational power method can be selected to meet the lifting requirements of the fixture assembly 2 in the vertical direction.

[0062] Such as Figure 1 and Figure 5 , in an embodiment, a mounting rod 12 is provided on one side of the positioning table 11, and one end of the fixture assembly 2 is mounted on the mounting rod 12. A plurality of fixture assemblies 2 are provided and arranged side by side along the axial direction of the mounting rod 12.

[0063] In this embodiment, usually, at least two or more sheet metal parts 100 to be welded need to be welded on the positioning table 11. Therefore, providing a plurality of fixture assemblies 2 can ensure that each sheet metal part 100 to be welded can be stably clamped. To achieve the orderly installation of the plurality of fixture assemblies 2, a mounting rod 12 is specifically provided on one side of the positioning table 11, enabling these fixture assemblies 2 to be arranged along the axial direction (i.e., the length direction) of the mounting rod 12. This design not only effectively saves space but also greatly facilitates the management and adjustment work of the operator.

[0064] It should also be understood that to ensure that the fixture assembly 2 can more stably clamp the sheet metal part 100 to be welded, during the design of the installation direction of the fixture assembly 2, with reference to the direction of the welding edge of each sheet metal part 100 to be welded after being placed on the positioning table 11, the arrangement direction of the plurality of pressing sensors 21 on the fixture assembly 2 can be aligned with the direction of the welding edge. In this way, the fixture assembly 2 can effectively clamp the welding edge of the sheet metal part 100 to be welded, thereby ensuring the stability and reliability of the welding effect.

[0065] Please refer to Figure 5 , Figure 5 For Figure 1 the enlarged structural schematic diagram of the partial area A in

[0066] In an embodiment, the fixture assembly 2 further includes:

[0067] a lifting pressure rod 22, with one end rotatably connected to the mounting rod 12 and the other end extending to the other side of the positioning table 11, and a plurality of pressing sensors 21 are arranged side by side on the lifting pressure rod 22;

[0068] The lifting driving member 23 is fixedly installed on one side of the positioning table 11 or on the mounting rod 12. The lifting driving member 23 is connected to the lifting pressure rod 22 and is used to drive the lifting pressure rod 22 to rotate and lift.

[0069] In this embodiment, one end of the lifting pressure rod 22 can be rotatably connected to the mounting rod 12 through a rotating block 221, that is, the mounting rod 12 is a round rod, and the rotating block 221 is rotatably sleeved on the mounting rod 12. One end of the lifting pressure rod 22 is fixedly inserted into the rotating block 221, so as to realize the rotational connection of one end of the lifting pressure rod 22 relative to the mounting rod 12. The other end of the lifting pressure rod 22 extends to the other side of the positioning table 11. The operator can directly operate the other end of the lifting pressure rod 22 to perform the lifting movement of the lifting pressure rod 22, and a handle portion can be provided at the other end of the lifting pressure rod 22 for the convenience of the operator to operate.

[0070] In this embodiment, a plurality of pressing sensors 21 are arranged side by side on the lifting pressure rod 22. By controlling the lifting movement of the lifting pressure rod 22 through the lifting driving member 23, the plurality of pressing sensors 21 can press or release the sheet metal parts 100 to be welded. When the pressing sensors 21 press the sheet metal parts 100 to be welded, the pressure sensor can detect the magnitude of the pressing force in real time and transmit the detected pressing force data to the sensing control module 3.

[0071] In one implementation solution of the lifting driving member 23, the lifting driving member 23 may include a fixed block 231, a telescopic rod 232, and a sliding block 233; the fixed block 231 is fixedly installed on one side of the positioning table 11 or on the mounting rod 12; one end of the telescopic rod 232 is fixedly connected to the fixed block 231; the sliding block 233 is installed at the other end of the telescopic rod 232, and the sliding block 233 is slidably sleeved on the lifting pressure rod 22; wherein, the telescopic rod 232 is used to drive the sliding block 233 to move back and forth on the lifting pressure rod 22, and to drive the lifting pressure rod 22 to rotate and lift.

[0072] In this implementation solution, the telescopic rod 232 is inclined, and the telescopic rod 232 can extend obliquely upward in the direction of the other end of the lifting pressure rod 22. The telescopic rod 232 is preferably an electric telescopic rod 232 or a pneumatic telescopic rod 232. By controlling its telescopic action, the position of the sliding block 233 on the lifting pressure rod 22 can be accurately controlled, and thus the accurate control of the rotational lifting movement of the lifting pressure rod 22 can be realized.

[0073] In this implementation solution, the telescopic trigger mode of the telescopic rod 232 can adopt manual trigger. That is, when the operator operates the other end of the lifting and lowering pressure rod 22 to lift upwards, after the telescopic rod 232 receives the signal of the upward lifting force, it automatically extends and drives the sliding block 233 to slide obliquely upwards towards the direction of the other end of the lifting and lowering pressure rod 22, thereby driving the other end of the telescopic rod 232 to rise upwards so that the pressing and sensing member 21 releases the sheet metal part 100 to be welded. On the contrary, when the operator operates the other end of the lifting and lowering pressure rod 22 to press downwards, after the telescopic rod 232 receives the signal of the downward pressure, it automatically contracts and drives the sliding block 233 to slide obliquely downwards towards the direction of one end of the lifting and lowering pressure rod 22, thereby driving the other end of the telescopic rod 232 to descend so that the pressing and sensing member 21 presses the sheet metal part 100 to be welded. This manual trigger mode is simple and intuitive. The operator only needs to simply operate the lifting and lowering pressure rod 22 up and down to control the extension and contraction of the telescopic rod 232, and then complete the pressing and releasing of the sheet metal part 100 to be welded, improving the convenience and efficiency of the welding operation.

[0074] In this implementation solution, the sliding fit part between the sliding block 233 and the lifting and lowering pressure rod 22 can be made of wear-resistant materials to reduce friction loss and extend the service life. At the same time, in order to ensure the stable sliding of the sliding block 233 on the lifting and lowering pressure rod 22, a guiding structure, such as a guiding groove and a guiding block, can also be set in this fit part to further improve the sliding accuracy and smoothness. In addition, the surface of the sliding block 233 can also be lubricated, such as applying an appropriate amount of lubricant, to further reduce the friction coefficient and make the operation smoother.

[0075] Please combine Figure 6 , Figure 6 For Figure 1 the enlarged structural schematic diagram of the partial B in

[0076] In one embodiment, the pressing and sensing member 21 includes:

[0077] a clamping piece 211, clamped on the lifting and lowering pressure rod 22;

[0078] a lead screw nut 212, passing through the clamping piece 211 and capable of rotating to adjust the clamping force of the clamping piece 211 clamped on the lifting and lowering pressure rod 22;

[0079] a pressure sensor 213, arranged at the bottom of the lead screw nut 212 and used for pressing down the sheet metal part 100 to be welded when the fixture assembly 2 descends.

[0080] In this embodiment, the clamping piece 211 can include an upper clamping piece and a lower clamping piece. The upper clamping piece and the lower clamping piece clamp the lifting and lowering pressure rod 22 in the up and down direction. The lead screw nut 212 passes through the upper clamping piece and the lower clamping piece, and the clamping tightness of the upper clamping piece and the lower clamping piece on the lifting and lowering pressure rod 22 can be adjusted by rotating the lead screw nut 212.

[0081] It can be understood that when the pressure value monitored by the pressure sensor 213 installed at the bottom of the lead screw nut 212 exceeds or is lower than the preset threshold range, it is necessary to adjust the position of the pressing and sensing member 21 on the lifting and pressing rod 22. The lead screw nut 212 can be rotated to loosen the upper clamping piece and the lower clamping piece. At this time, the pressing and sensing member 21 can be slid axially along the lifting and pressing rod 22 to the corresponding target position, and then the lead screw nut 212 is rotated again to clamp the lifting and pressing rod 22 by the upper clamping piece and the lower clamping piece, so as to realize the position adjustment of the pressing and sensing member 21 on the lifting and pressing rod 22 until the pressure value monitored by the pressing and sensing member 21 is within the preset threshold range.

[0082] It can be understood that the pressure sensor 213 can adopt an elastic design. When multiple pressing and sensing members 21 press down on the sheet metal part 100 to be welded, elastic pressing forces are applied to different positions of the sheet metal part 100 to be welded through the multiple pressure sensors 213. The way of elastically applying the pressing force can avoid excessive pressure damage to the surface of the sheet metal part 100 to be welded. At the same time, the pressure sensor 213 can also more accurately monitor the magnitude of the pressing force to feedback the accurate pressure value to the sensing control module 3.

[0083] In an embodiment, both ends of the clamping piece 211 extend symmetrically outward relative to both sides of the lifting and pressing rod 22. Two lead screw nuts 212 are respectively arranged at both ends of the clamping piece 211, and two pressure sensors 213 are respectively arranged at the bottoms of the two lead screw nuts 212.

[0084] In this embodiment, in order to improve the stability of pressing down the sheet metal part 100 to be welded, both ends of the clamping piece 211 are extended symmetrically outward, so as to realize the installation of the two lead screw nuts 212 and the two pressure sensors 213, and the two symmetrically arranged pressure sensors 213 can better monitor the pressure values at different positions on the sheet metal part 100 to be welded.

[0085] Please refer to Figure 7 , Figure 7 for Figure 2 the enlarged structural schematic diagram of the partial C in

[0086] In an embodiment, a barb 13 is provided on the other side of the positioning table 11. The barb 13 is used to hook and tighten the other end of the fixture assembly 2 after the other end of the fixture assembly 2 descends.

[0087] In this embodiment, the barb 13 is rotatably mounted on the other edge of the positioning table 11. When the lifting drive member 23 of the fixture assembly 2 fails and the fixture assembly 2 cannot stably press down the sheet metal part 100 to be welded, the barb 13 can be rotated first to avoid the space after the fixture assembly 2 is pressed down to the target position. Then, after operating the fixture assembly 2 to press down as a whole, the barb 13 is rotated again so that the barb 13 hooks the other end of the fixture assembly 2 (i.e., the barb 13 hooks the other end of the lifting and pressing rod 22), thereby ensuring that the fixture assembly 2 stably presses the sheet metal to be welded.

[0088] In this embodiment, the material of the barb 13 is selected as high-strength alloy steel to ensure that it can withstand great pressure without deformation when hooking the fixture assembly 2, further enhancing the stability and reliability of the welding equipment. In addition, the rotation angle and force of the barb 13 can be adjusted according to actual needs to adapt to sheet metal parts 100 to be welded with different specifications and thicknesses, improving the versatility and flexibility of the device.

[0089] In summary, it is easy for those skilled in the art to understand that, on the premise of no conflict, the above-mentioned advantageous technical features can be freely combined and superimposed.

[0090] The above is only a preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A welding positioning device for air conditioner sheet metal parts, characterized in that, Comprising: A positioning base provided with a positioning table for placing the sheet metal parts to be welded; A fixture assembly arranged on the positioning base and capable of lifting movement above the positioning table to press or release the sheet metal parts to be welded; Wherein, the fixture assembly includes a plurality of movable pressing sensors, and the plurality of pressing sensors are used to press different positions of the sheet metal parts to be welded when the fixture assembly descends, and detect the pressure value of each pressing position; the plurality of pressing sensors are also used to move so that the pressure values of each pressing position reach equilibrium.

2. The air-conditioning sheet metal part welding positioning device according to claim 1, characterized in that It further includes: A sensing control module arranged on the positioning base and electrically connected to the pressing sensors; the sensing control module is used to monitor the pressure values of the plurality of pressing sensors.

3. The air conditioner sheet metal part welding positioning device according to claim 1, characterized in that, A plurality of positioning parts are provided on the positioning table, and the plurality of positioning parts are used to cooperate with the notches or positioning holes provided on the sheet metal parts to be welded for positioning when the sheet metal parts to be welded are placed on the positioning table.

4. The air-conditioning sheet metal part welding positioning device according to claim 1, characterized in that One end of the fixture assembly is rotatably connected to one side of the positioning table, and the other end of the fixture assembly extends to the other side of the positioning table, and the fixture assembly can perform rotary lifting movement with one end as the rotation point.

5. The air conditioner sheet metal part welding positioning device according to claim 4, characterized in that, An installation rod is provided on one side of the positioning table, one end of the fixture assembly is installed on the installation rod, and a plurality of the fixture assemblies are provided and arranged side by side along the axial direction of the installation rod.

6. The air-conditioning sheet metal part welding positioning device according to claim 5, characterized in that, The fixture assembly further includes: A lifting pressure rod, one end of which is rotatably connected to the installation rod, and the other end extends to the other side of the positioning table, and the plurality of pressing sensors are arranged side by side on the lifting pressure rod; A lifting driving member fixedly installed on one side of the positioning table or the installation rod, the lifting driving member is connected to the lifting pressure rod and used to drive the lifting pressure rod to perform rotary lifting.

7. The air conditioner sheet metal part welding positioning device according to claim 6, characterized in that, The lifting driving member includes: A fixed block fixedly installed on one side of the positioning table or the installation rod; A telescopic rod, one end of which is fixedly connected to the fixed block; A sliding block installed at the other end of the telescopic rod, and the sliding block is slidably sleeved on the lifting pressure rod; Wherein, the telescopic rod is used to drive the sliding block to move back and forth on the lifting pressure rod, and link the lifting pressure rod to perform rotary lifting movement.

8. The air conditioner sheet metal part welding positioning device according to claim 6, characterized in that, The pressing sensor includes: A clamping piece clamped on the lifting pressure rod; A lead screw nut passing through the clamping piece and capable of rotatably adjusting the clamping force of the clamping piece clamped on the lifting pressure rod; A pressure sensor arranged at the bottom of the lead screw nut and used to press the sheet metal parts to be welded when the fixture assembly descends.

9. The air conditioner sheet metal part welding positioning device according to claim 8, characterized in that Both ends of the clamping piece symmetrically extend outward relative to both sides of the lifting pressure rod, two lead screw nuts are respectively arranged at both ends of the clamping piece, and two pressure sensors are respectively arranged at the bottoms of the two lead screw nuts; Wherein, the pressure sensor is elastically installed at the bottom of the lead screw nut.

10. The air-conditioning sheet metal part welding positioning device according to claim 1, wherein, A barb is provided on the other side of the positioning table, and the barb is used to hook the other end of the fixture assembly tightly after the other end of the fixture assembly descends.

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