A generator frame welding positioning device and method

Abstract

The present application relates to the rack welding technical field, specifically to a kind of generator rack welding positioning device and method, square tube, shock-absorbing connecting rod positioning mechanism, quick fixture, rotary vertical plate and reset latch, square tube has square tube slot, the device uses the square tube of adaptive size as positioning main body, positioning hole, let hole, connecting rod positioning hole and other structures on square tube, can be cut into shape synchronously when laser pipe cutting machine blanking, save a lot of machining process, material utilization and processing efficiency greatly improve, using square tube slot carries out line contact positioning to rack main pipe, compared with traditional steel plate slot surface contact mode, positioning is more reliable, clamping is more stable, not easy to accumulate slag, cleaning is more convenient, effectively improve welding quality and continuous production efficiency, tooling bottom plate, rotary vertical plate and other plate parts are directly blanked using laser plate cutting machine.

Description

Technical Field

[0001] This invention relates to the field of frame welding technology, and in particular to a generator frame welding positioning device and method. Background Technology

[0002] Existing general-purpose generator frames are mostly formed by CNC bending of Q195 welded pipes and then welding them together with multiple sheet metal parts. They are characterized by a wide variety of models, small batch production, short development cycle, and fierce market competition.

[0003] However, in the traditional production model, each frame requires a dedicated welding fixture, which has problems such as long development cycle, high manufacturing cost, complicated processing procedures, low clamping and positioning efficiency, easy accumulation of welding slag, and difficulty in cleaning. It is difficult to meet the production needs of multiple varieties, small batches, and rapid model changeover, thus restricting the improvement of production efficiency and product consistency.

[0004] Therefore, there is an urgent need for a welding positioning device and method for generator frames to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a generator frame welding positioning device and method, which aims to improve tooling manufacturing efficiency and reduce manufacturing costs.

[0006] To achieve the above objectives, in a first aspect, the present invention provides a generator frame welding positioning device, comprising a square tube, a shock-absorbing linkage positioning mechanism, a quick clamp, a rotating upright plate, a tooling base plate, a reset pin, and a square tube groove; the square tube is disposed on the tooling base plate, the shock-absorbing linkage positioning mechanism is fixedly assembled above the tooling base plate, the square tube groove is fixedly connected to the tooling base plate and located at the top of the tooling base plate, the rotating upright plate is disposed on the side of the tooling base plate away from the square tube groove, the reset pin is disposed on one side of the rotating upright plate, and the quick clamp is assembled on the rotating upright plate.

[0007] In a second aspect, the present invention also provides a generator frame welding positioning method, applied to the generator frame welding positioning device as described in the first aspect above, comprising the following steps: Assemble the main frame components and spot weld the main frame components; Fifteen support ears are installed on the left side of the main frame body and spot-welded to the support ears; Nine support ears are installed on the right side of the main frame body, and the support ears are spot welded. The entire frame is reinforced by full welding and then ground for further processing to obtain the generator frame.

[0008] The specific method for assembling the main frame components and spot welding the main frame is as follows: Install the two frame tooling base plates into the corresponding positions on the tooling base plate, then pull out the reset pins of the left and right rotating upright plates respectively, and rotate the rotating upright plates outward to open them. Install the left main pipe, right main pipe and large main pipe into the square tube groove of the tooling base plate in sequence, then rotate the left and right rotating plates inward to clamp the left main pipe, right main pipe and large main pipe respectively, insert the reset pin to complete the reset and fixation, and then press the quick clamp to fix. Install the four shock absorber brackets onto the corresponding frame base plate, press the shock absorber linkage positioning mechanism in sequence, align the corresponding positioning pin positions, and press the linkage mechanism handle to achieve the pressing and fixing of the main frame and the four shock absorber brackets. After the main components of the frame are installed, spot welding is performed at the joints of the components to complete the assembly and spot welding of the main frame.

[0009] The specific method for installing 15 support ears on the left side of the main frame and spot welding the support ears is as follows: Place the main frame body onto the square tube groove of the second tooling, install 14 lugs and one long lug onto their respective positioning pins, and press the corresponding quick clamps. The 14 mounting lugs and 1 long lug were spot welded together in sequence.

[0010] The specific method for obtaining the generator frame by fully welding and reinforcing the entire frame, followed by grinding and subsequent processing, is as follows: The entire frame is fully reinforced by welding, and the entire frame is thoroughly ground to remove welding slag and burrs; The entire frame after grinding is powder coated to obtain the generator frame.

[0011] This invention discloses a generator frame welding positioning device. The shock-absorbing linkage positioning mechanism, the quick clamp, the rotating upright plate, the reset pin, and the square tube groove utilize a square tube of suitable size as the positioning body. The positioning holes, clearance holes, and linkage positioning holes on the square tube can be simultaneously cut and formed during laser tube cutting, eliminating numerous machining processes and significantly improving material utilization and processing efficiency. The positioning accuracy and consistency fully meet the frame dimensional tolerance requirements. The square tube groove provides line contact positioning of the main frame tube, which, compared to traditional steel plate groove surface contact, offers more reliable positioning, more stable clamping, less weld slag accumulation, and easier cleaning, effectively improving welding quality and continuous production efficiency. Tooling base plates, upright plates, and other plate-type parts are directly cut using a laser plate cutter, eliminating the need for high-precision pre-machining of round holes and shaped holes. Only areas with high shape and position accuracy requirements are pre-drilled with wire cutting holes, allowing for subsequent precision wire cutting as needed. This significantly shortens the processing cycle and reduces processing costs while ensuring accuracy. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a top view of a generator frame welding first-order positioning device provided by the present invention.

[0014] Figure 2 This is a top view of a second-order positioning device for welding a generator frame provided by the present invention.

[0015] Figure 3 This is a top view of a third-order positioning device for welding a generator frame provided by the present invention.

[0016] Figure 4 This is a schematic diagram of the welded motor frame.

[0017] Figure 5 This is a flowchart of a generator frame welding and positioning method provided by the present invention.

[0018] Figure 6 This is a schematic diagram of the assembly structure of a generator frame for a generator frame welding positioning device provided by the present invention.

[0019] In the figure: 1-square tube, 2-shock-absorbing linkage positioning mechanism, 3-quick clamp, 4-rotating vertical plate, 5-reset pin, 6-square tube groove, 7-tool base plate. Detailed Implementation

[0020] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0021] Please see Figures 1 to 6 In a first aspect, the present invention provides a generator frame welding positioning device, comprising a square tube 1, a shock-absorbing linkage positioning mechanism 2, a quick clamp 3, a rotating upright plate 4, a tooling base plate 7, a reset pin 5, and a square tube groove 6. The square tube 1 is disposed on the tooling base plate 7, the shock-absorbing linkage positioning mechanism 2 is fixedly assembled above the tooling base plate 7, the square tube groove 6 is fixedly connected to the tooling base plate 7 and is located at the top of the tooling base plate 7, the rotating upright plate 4 is disposed on the side of the tooling base plate 7 away from the square tube groove 6, the reset pin 5 is disposed on one side of the rotating upright plate 4, and the quick clamp 3 is assembled on the rotating upright plate 4.

[0022] In this embodiment, the shock-absorbing linkage positioning mechanism 2, the quick clamp 3, the rotating upright plate 4, the reset pin 5, and the square tube groove 6 all use the square tube 1 of suitable size as the positioning body. The positioning holes, clearance holes, linkage positioning holes, and other structures on the square tube 1 can be cut and formed simultaneously in one go during the laser tube cutting machine, saving a lot of machining processes, greatly improving material utilization and processing efficiency. The positioning accuracy and consistency fully meet the frame size tolerance requirements. The square tube groove 6 is used for line contact positioning of the main frame tube. Compared with the traditional steel plate groove surface contact method, the positioning is more reliable, the clamping is more stable, it is less likely to accumulate welding slag, and it is easier to clean. This effectively improves welding quality and continuous production efficiency. The tooling base plate, upright plate, and other plate parts are directly cut by the laser plate cutting machine without the need for high-precision pre-processing of round holes and shaped holes. Only the parts with high shape and position accuracy requirements are reserved for wire cutting wire holes. Precision wire cutting is performed as needed in the future. This can greatly shorten the processing cycle and reduce processing costs while ensuring accuracy.

[0023] In a second aspect, the present invention also provides a generator frame welding positioning method, applied to the generator frame welding positioning device as described in the first aspect above, comprising the following steps: S1 assembles the main frame components and spot welds the main frame components; Specific methods: S11 Install the two frame tooling base plates into the corresponding positions of the tooling base plate 7, and then pull out the reset pins 5 of the left and right rotating upright plates 4 respectively, and rotate the rotating upright plates 4 outward to open them. In this embodiment of the invention, the four sets of shock-absorbing linkage positioning mechanisms 2 are opened respectively. Then, the two frame tooling base plates are installed at the corresponding positions of the tooling base plate 7. Then, the reset pins 5 of the left and right rotating upright plates 4 are pulled out respectively, and the rotating upright plates 4 are rotated outward to open.

[0024] S12 Install the left main pipe, right main pipe and large main pipe into the square tube groove 6 of the tooling base plate 7 in sequence, then rotate the left and right rotating upright plates 4 inward to clamp the left main pipe, right main pipe and large main pipe respectively, insert the reset pin 5 to complete the reset and fixation, and then press the quick clamp 3 to fix. S13 installs the four shock-absorbing brackets onto the corresponding frame base plate, presses down the shock-absorbing linkage positioning mechanism 2 in sequence, aligns with the corresponding positioning pin positions, and presses the linkage mechanism handle to achieve the pressing and fixing of the main frame and the four shock-absorbing brackets. After the main components of the S14 rack are installed, spot welding is performed at the joints of each component to complete the assembly and spot welding of the main rack body.

[0025] In this embodiment of the invention, the 25U-shaped square tube is placed on the square tube positioning slot 6. After the first main body parts are installed, the welder uses a CO2 welding machine and the spot welding station personnel spot weld the joints of the parts to complete the assembly spot welding connection of the first frame body.

[0026] S2 installs 15 lugs on the left side of the main frame body and spot welds the lugs; Specific methods: S21 Place the main body of the frame onto the square tube groove 6 of the second tooling, install 14 lugs and one long lug onto their respective positioning pins, and press the corresponding quick clamps. S22 sequentially spot welds together 14 mounting lugs and 1 long lug.

[0027] S3 installs nine support ears on the right side of the main frame body and spot welds the support ears; In this embodiment of the invention, the frame assembly completed by the second-sequence spot welding is placed onto the positioning square tube groove of the third-sequence welding fixture. Nine mounting lug parts are then sequentially installed onto their respective lug positioning pins, and the corresponding quick clamps are tightened to ensure the lug parts are fixed in place. After all accessories are installed, the welder performs spot welding on each mounting lug, completing the third-sequence spot welding process. Afterwards, all quick clamps are released, the spot-welded assembly of the overall frame is removed, and finally, the welder performs full-scale welding reinforcement on the entire frame, completing the welding process of the entire 12KW frame.

[0028] S4 performs full welding reinforcement on the entire frame and then grinds it for further processing to obtain the generator frame.

[0029] Specific methods: The S41 frame is fully reinforced by welding and then thoroughly ground to remove weld slag and burrs. In this embodiment of the invention, a grinding worker thoroughly grinds the weld scars on the surface of the frame to remove weld slag and burrs, making the surface of the frame smooth.

[0030] S42 performs powder coating on the entire polished frame to obtain the generator frame.

[0031] The above-disclosed embodiments are merely preferred embodiments of a generator frame welding positioning device and method of this application, and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes of the above embodiments can be implemented, and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A welding and positioning device for a motor frame, characterized in that, Includes square tubes, shock-absorbing linkage positioning mechanisms, quick clamps, rotating uprights, tooling base plates, reset pins, and square tube slots; The square tube is disposed on the tooling base plate, the shock-absorbing linkage positioning mechanism is fixedly assembled above the tooling base plate, the square tube groove is fixedly connected to the tooling base plate and located at the top of the tooling base plate, the rotating upright plate is disposed on the side of the tooling base plate away from the square tube groove, the reset pin is disposed on one side of the rotating upright plate, and the quick clamp is assembled on the rotating upright plate.

2. A generator frame welding positioning method, applied to the generator frame welding positioning device as described in claim 1, characterized in that, Includes the following steps: Assemble the main frame components and spot weld the main frame components; Fifteen support ears are installed on the left side of the main frame body and spot-welded to the support ears; Nine support ears are installed on the right side of the main frame body, and the support ears are spot welded. The entire frame is reinforced by full welding and then ground for further processing to obtain the generator frame.

3. The generator frame welding and positioning method as described in claim 1, characterized in that, The specific method for assembling the main frame components and spot welding the main frame is as follows: Install the two frame tooling base plates into the corresponding positions on the tooling base plate, then pull out the reset pins of the left and right rotating upright plates respectively, and rotate the rotating upright plates outward to open them. Install the left main pipe, right main pipe and large main pipe into the square tube groove of the tooling base plate in sequence, then rotate the left and right rotating plates inward to clamp the left main pipe, right main pipe and large main pipe respectively, insert the reset pin to complete the reset and fixation, and then press the quick clamp to fix. Install the four shock absorber brackets onto the corresponding frame base plate, press the shock absorber linkage positioning mechanism in sequence, align the corresponding positioning pin positions, and press the linkage mechanism handle to achieve the pressing and fixing of the main frame and the four shock absorber brackets. After the main components of the frame are installed, spot welding is performed at the joints of the components to complete the assembly and spot welding of the main frame.

4. The generator frame welding and positioning method as described in claim 1, characterized in that, The specific method for installing 15 support ears on the left side of the main frame body and spot welding the support ears is as follows: Place the main frame body onto the square tube groove of the second tooling, install 14 lugs and one long lug onto their respective positioning pins, and press the corresponding quick clamps. The 14 mounting lugs and 1 long lug were spot welded together in sequence.

5. The generator frame welding and positioning method as described in claim 1, characterized in that, The specific method for fully welding and reinforcing the entire frame, followed by grinding and subsequent processing, to obtain the generator frame is as follows: The entire frame is fully reinforced by welding, and the entire frame is thoroughly ground to remove welding slag and burrs; The entire frame after grinding is powder coated to obtain the generator frame.

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