A welding fixture for assembling a seat plate assembly, a transmission connecting flange and a pipe beam assembly

Abstract

The present invention relates to a welding fixture for assembling a connecting seat plate assembly, a transmission connecting flange and a pipe beam assembly, which comprises a bed, a first final transmission connecting flange positioning device, a connecting seat plate assembly positioning base plate, a U-shaped positioning block, and a second final transmission connecting flange positioning device. The first final transmission connecting flange positioning device, the connecting seat plate assembly positioning base plate, and the U-shaped positioning block are connected to a working base plate through bolts and a flat key, and the second final transmission connecting flange positioning device is connected to a slider of a high assembly equipped with a flange linear guide through bolts. The first final transmission connecting flange positioning device, the connecting seat plate assembly positioning base plate, the U-shaped positioning block, and the second final transmission connecting flange positioning device are coaxial. The present invention is simple to operate and has a stable effect. It ensures the dimensional accuracy and stability of the assembly welding of the connecting seat plate assembly, the transmission connecting flange and the pipe beam assembly, ensures product quality, greatly improves processing efficiency, and reduces the labor intensity of workers.

Description

Technical Field

[0001] The invention relates to the technical field of harvester welding fixtures, and in particular to an assembling welding fixture for a front axle connection seat plate assembly, a transmission connection flange and a pipe beam assembly of a corn harvester. Background Art

[0002] The connecting seat plate assembly and transmission connecting flange on the front axle of the corn harvester are important connecting components between the front axle and the frame for load-bearing or balancing the stability and safety of the frame. Their assembly size directly affects the various performances of the harvester.

[0003] The front axle of the corn harvester mainly consists of the connecting seat plate assembly, transmission connecting flange, pipe beam, front traction frame, box bracket, elevator arm, reinforcement ribs, header cylinder support, etc. The installation size of related parts directly affects the overall performance of the harvester. Therefore, by fixture assembly and spot welding, the relevant size can be guaranteed and production efficiency can be quickly improved.

[0004] Since the connecting seat plate assembly, the transmission connecting flange and the pipe beam assembly are three irregular component structures, a specific fixture structure is required to clamp and fix the connecting seat plate assembly, the transmission connecting flange and the pipe beam assembly. At present, there is no welding fixture specifically for the connecting seat plate assembly, the transmission connecting flange and the pipe beam assembly when welding the components of the front axle of the corn harvester. Summary of the invention

[0005] The purpose of the present invention is to solve the defects of the prior art and provide a welding fixture for assembling a connecting seat plate assembly, a transmission connecting flange and a pipe beam assembly.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] A welding fixture for assembling a connecting seat plate assembly, a transmission connecting flange and a pipe beam assembly, comprising a bed, a first final transmission connecting flange positioning device, a connecting seat plate assembly positioning bottom plate, a U-shaped positioning block, and a second final transmission connecting flange positioning device;

[0008] The bed includes a base frame, a working base plate, a high assembly with flange linear guide rails, a gas valve switch mounting plate, and a manual valve;

[0009] The first final transmission connecting flange positioning device includes a first positioning base, a first support plate, a first lower block, a first side block, a first adjustment plate, a first quick clamp, a second side block, a first flat key, a first connecting pin, and a first spring;

[0010] The connecting seat plate assembly positioning base plate includes a second flat key, a third side block, a positioning base plate, a fourth side block, a second spring, and a second connecting pin;

[0011] The U-shaped positioning block includes a U-shaped block, a spacer block, and a third flat key;

[0012] The second final transmission connecting flange positioning device includes a second positioning base, a second supporting plate, a second adjusting plate, a second quick clamp, a fifth side block, a second lower block, a third connecting pin, a third spring, a cylinder joint, a cylinder mounting seat, a cylinder, a fourth flat key, and a sixth side block.

[0013] The first final drive connecting flange positioning device, the connecting seat plate assembly positioning base plate, and the U-shaped positioning block are connected to the working base plate by bolts and keys, the second final drive connecting flange positioning device is connected to the slider of the high assembly with a flange linear guide by bolts, and the cylinder mounting seat is fixedly connected to the working base plate by screws and keys, so that the first final drive connecting flange positioning device, the connecting seat plate assembly positioning base plate, the U-shaped positioning block, and the second final drive connecting flange positioning device are coaxial.

[0014] Furthermore, the base frame is welded with horn steel, the working base plate is welded on the base frame, the high assembly is equipped with a flange linear guide rail fixedly connected to the working base plate by screws and mounting grooves, the air valve switch mounting plate is welded on the working base plate, and the manual valve is fixedly connected to the air valve switch mounting plate by screws.

[0015] Furthermore, the first supporting plate, the first lower stopper, the second side stopper, and the first flat key are fixedly connected to the first positioning base by screws, the first side stopper and the first spring are fixedly connected to the first positioning base by screws and the first connecting pin, the first adjustment plate is fixedly connected to the first supporting plate by screws, and the first quick clamp is fixedly connected to the first adjustment plate by screws.

[0016] Furthermore, the second flat key, the third side block and the fourth side block are fixedly connected to the positioning base plate by screws, and the second spring is fixedly connected to the positioning base plate by screws and the first connecting pin.

[0017] Furthermore, the cushion block and the third flat key are fixedly connected to the U-shaped block by screws.

[0018] Further, the second support plate, the fifth side stopper, the second lower stopper, and the cylinder joint are fixedly connected to the second positioning base by screws;

[0019] The sixth side stopper and the third spring are fixedly connected to the second positioning base by screws and the third connecting pin, the second adjustment plate is fixedly connected to the second supporting plate by screws, the second quick clamp is fixedly connected to the second adjustment plate by screws, the cylinder and the fourth flat key are fixedly connected to the cylinder mounting seat by screws, and the cylinder is fixedly connected to the cylinder joint by threads.

[0020] The beneficial effects of the present invention are as follows: the present invention is simple to operate, has stable effects, ensures the dimensional accuracy and stability of the assembly and welding of the connecting seat plate assembly, the transmission connecting flange and the pipe beam assembly, ensures product quality, greatly improves processing efficiency, and reduces the labor intensity of workers. The present invention is applicable to a wide range of products, and the assembly and welding of the connecting seat plate assembly, the transmission connecting flange and the pipe beam assembly by the clamp has stable quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a general schematic diagram in an embodiment of the present invention;

[0022] Figure 1a for Figure 1 Schematic diagram of the cross section along line AA;

[0023] Figure 2 A schematic diagram of the structure of the first final drive connecting flange positioning device in an embodiment of the present invention;

[0024] Figure 2a It is a side view schematic diagram of the first final drive connecting flange positioning device;

[0025] Figure 2b is a top view schematic diagram of the first final transmission connecting flange positioning device;

[0026] Figure 3 A schematic diagram of the structure of the base plate connected to the seat plate positioning embodiment of the present invention;

[0027] Figure 3a A top view schematic diagram of the connection seat plate and the positioning base plate;

[0028] Figure 4 A schematic diagram of the structure of a U-shaped positioning block in an embodiment of the present invention;

[0029] Figure 4a It is a side view of a U-shaped positioning block;

[0030] Figure 5 It is a structural schematic diagram of the second final transmission connecting flange positioning device in an embodiment of the present invention;

[0031] Figure 5a is a top view schematic diagram of the second final transmission connecting flange positioning device;

[0032] Figure 6 Schematic diagram of the workpiece structure in an embodiment of the present invention.

[0033] In the figure: chassis 1, working base plate 2, first final drive connecting flange positioning device 3, connecting seat plate assembly positioning base plate 4, U-shaped positioning block 5, second final drive connecting flange positioning device 6, high assembly flange linear guide 7, air valve switch mounting plate 8, manual valve 9, first positioning base 10, first supporting plate 11, first lower block 12, first side block 13, first adjustment plate 14, first quick clamp 15, second side block 16, first flat key 17, first connecting pin 18, first spring 19, second flat key 20, third side Block 21, positioning base plate 22, fourth side block 23, second spring 24, second connecting pin 25, U-shaped block 26, cushion block 27, third flat key 28, second positioning base 29, second support plate 30, second adjustment plate 31, second quick clamp 32, fifth side block 33, second lower block 34, third connecting pin 35, third spring 36, cylinder joint 37, cylinder mounting seat 38, cylinder 39, fourth flat key 40, sixth side block 41, pipe beam assembly 42, connecting seat plate assembly 43, final drive connecting flange 44. DETAILED DESCRIPTION

[0034] The present invention can be specifically implemented through the techniques described in the content of the invention. The present invention can be further described through the following embodiments. The scope of the present invention is not limited to the following embodiments.

[0035] like Figures 1 to 6 As shown, a welding fixture for assembling a connecting seat plate assembly, a transmission connecting flange and a pipe beam assembly includes a bed, a first final transmission connecting flange positioning device 3, a connecting seat plate assembly positioning bottom plate 4, a U-shaped positioning block 5, and a second final transmission connecting flange positioning device 6;

[0036] The bed includes a chassis 1, a working base plate 2, a high assembly with a flange linear guide 7, a valve switch mounting plate 8, a manual valve 9;

[0037] The first final drive connecting flange positioning device 3 includes a first positioning base 10, a first support plate 11, a first lower block 12, a first side block 13, a first adjustment plate 14, a first quick clamp 15, a second side block 16, a first flat key 17, a first connecting pin 18, a first spring 19;

[0038] Connecting the seat plate assembly positioning base plate 4 includes a second flat key 20, a third side block 21, a positioning base plate 22, a fourth side block 23, a second spring 24, a second connecting pin 25;

[0039] U-shaped positioning block 5 includes a U-shaped block 26, a spacer 27, a third flat key 28;

[0040] The second final transmission connecting flange positioning device 6 includes a second positioning base 29, a second supporting plate 30, a second adjusting plate 31, a second quick clamp 32, a fifth side block 33, a second lower block 34, a third connecting pin 35, a third spring 36, a cylinder joint 37, a cylinder mounting seat 38, a cylinder 39, a fourth flat key 40, and a sixth side block 41.

[0041] The first final drive connecting flange positioning device 3, the connecting seat plate assembly positioning base plate 4, and the U-shaped positioning block 5 are connected to the working base plate 2 by bolts and keys, the second final drive connecting flange positioning device 6 is connected to the slider of the high assembly with a flange linear guide 7 by bolts, and the cylinder mounting seat 38 is fixedly connected to the working base plate 2 by screws and keys, so that the first final drive connecting flange positioning device 3, the connecting seat plate assembly positioning base plate 4, the U-shaped positioning block 5, and the second final drive connecting flange positioning device 6 are coaxial.

[0042] The base frame 1 is welded with angle steel, the working base plate 2 is welded on the base frame 1, the high assembly is equipped with a flange linear guide rail 7 fixedly connected to the working base plate 2 by screws and mounting grooves, the air valve switch mounting plate 8 is welded on the working base plate 2, and the manual valve 9 is fixedly connected to the air valve switch mounting plate 8 by screws.

[0043] The first supporting plate 11, the first lower stopper 12, the second side stopper 16, and the first flat key 17 are fixedly connected to the first positioning base 10 by screws, the first side stopper 13 and the first spring 19 are fixedly connected to the first positioning base 10 by screws and the first connecting pin 18, the first adjustment plate 14 is fixedly connected to the first supporting plate 11 by screws, and the first quick clamp 15 is fixedly connected to the first adjustment plate 14 by screws.

[0044] The second flat key 20 , the third side block 21 , and the fourth side block 23 are fixedly connected to the positioning base plate 22 via screws, and the second spring 24 is fixedly connected to the positioning base plate 22 via screws and the first connecting pin 18 .

[0045] The spacer block 27 and the third flat key 28 are fixedly connected to the U-shaped block 26 by screws, and the second support plate 30, the fifth side block 33, the second lower block 34, and the cylinder joint 37 are fixedly connected to the second positioning base 29 by screws;

[0046] The sixth side stopper 41 and the third spring 36 are fixedly connected to the second positioning base 29 by screws and the third connecting pin 35, the second adjustment plate 31 is fixedly connected to the second support plate 30 by screws, the second quick clamp 32 is fixedly connected to the second adjustment plate 31 by screws, the cylinder 39 and the fourth flat key 40 are fixedly connected to the cylinder mounting seat 38 by screws, and the cylinder 39 is fixedly connected to the cylinder joint 37 by threads.

[0047] The specific welding process is as follows:

[0048] Step 1: First, install the workpiece final drive connecting flange 44 between the first lower block 12, the first side block 13, and the second side block 16 on the first positioning base 10 of the first final drive connecting flange positioning device 3, and drive the first side block 13 to drive the final drive connecting flange 44 to contact the second side block 16 under the pressure of the first spring 19, and pull the first quick clamp 15 to press the final drive connecting flange 44 to ensure that the end face of the final drive connecting flange 44 is close to the end face of the first positioning base 10.

[0049] Step 2: Install the workpiece final drive connecting flange 44 between the second lower block 34, the fifth side block 33 and the sixth side block 41 on the second positioning base 29 of the second final drive connecting flange positioning device 6, and drive the sixth side block 41 to drive the final drive connecting flange 44 to contact the fifth side block 33 under the pressure of the third spring 36, and pull the second quick clamp 32 to press the final drive connecting flange 44 to ensure that the end face of the final drive connecting flange 44 is close to the end face of the second positioning base 29.

[0050] Step 3: Install the workpiece connecting seat plate assembly 41 between the third side block 21 and the fourth side block 23 on the positioning base plate 22 of the connecting seat plate assembly positioning base plate 4, with one end surface of the connecting seat plate assembly 43 pressed against the fourth side block 23, and under the pressure of the second spring 24, the third side block 21 drives the connecting seat plate assembly 43 to contact the third block 21 on the other side.

[0051] Step 4: Install the pipe beam assembly 42 in the U-shaped groove of the U-shaped block 26 on the two U-shaped positioning blocks 5. Under the deadweight of the pipe beam assembly 42, the pipe beam assembly 42 is in contact with the pad 27 on the U-shaped positioning block 5, and one end of the pipe beam assembly 42 is close to the end face of the final drive connecting flange 44 equipped with the first final drive connecting flange positioning device 3.

[0052] Step 5: Pull the manual valve 9 to allow the cylinder 39 to push the final transmission connection flange 44 on the second positioning base 29 to contact the pipe beam assembly 42.

[0053] Step 5: Welding point fixation, welding parameters are current 220-280A, voltage 24-28V, gas flow 15-20L / Min, and welding point fixation is performed according to process requirements. Through welding point fixation, the relevant dimensions of the connecting seat plate assembly 43 and the transmission connecting flange 44 are consistent with the relevant dimensions of the drawing.

[0054] Step 6: After the welding point is fixed, loosen the first quick clamp 15 and the second quick clamp 32, pull the manual valve 9, so that the cylinder 39 drives the second positioning base 29 back to the original position, and then take out the pipe beam assembly 42 with the welding point fixed by the lifting device.

[0055] The invention is simple to operate and has stable effects. It ensures the dimensional accuracy and stability of the assembly and welding of the connecting seat plate assembly, the transmission connecting flange and the pipe beam assembly, ensures product quality, greatly improves processing efficiency, and reduces the labor intensity of workers. The invention is suitable for a wide range of products. The seat plate assembly, the transmission connecting flange and the pipe beam assembly are assembled and welded by the clamp, and the quality is stable.

[0056] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A welding fixture for assembling a connecting plate assembly, a transmission connecting flange and a pipe beam assembly, comprising a bed, a first final transmission connecting flange positioning device (3), a connecting plate assembly positioning base plate (4), a U-shaped positioning block (5), and a second final transmission connecting flange positioning device (6); It is characterized in that The bed comprises a base frame (1), a working base plate (2), a high assembly with a flange linear guide (7), a valve switch mounting plate (8), and a manual valve (9); The first final drive connecting flange positioning device (3) comprises a first positioning base (10), a first supporting plate (11), a first lower block (12), a first side block (13), a first adjustment plate (14), a first quick clamp (15), a second side block (16), a first flat key (17), a first connecting pin (18), and a first spring (19); The connecting seat plate assembly positioning base plate (4) includes a second flat key (20), a third side block (21), a positioning base plate (22), a fourth side block (23), a second spring (24), and a second connecting pin (25); The U-shaped positioning block (5) includes a U-shaped block (26), a spacer block (27), and a third flat key (28); The second final transmission connecting flange positioning device (6) comprises a second positioning base (29), a second supporting plate (30), a second adjusting plate (31), a second quick clamp (32), a fifth side block (33), a second lower block (34), a third connecting pin (35), a third spring (36), a cylinder joint (37), a cylinder mounting seat (38), a cylinder (39), a fourth flat key (40), and a sixth side block (41); The first final drive connecting flange positioning device (3), the connecting seat plate assembly positioning base plate (4), and the U-shaped positioning block (5) are connected to the working base plate (2) by means of bolts and keys, the second final drive connecting flange positioning device (6) is connected to a slider of a high assembly equipped with a flange linear guide rail (7) by means of bolts, and the cylinder mounting seat (38) is fixedly connected to the working base plate (2) by means of screws and keys, so that the first final drive connecting flange positioning device (3), the connecting seat plate assembly positioning base plate (4), the U-shaped positioning block (5), and the second final drive connecting flange positioning device (6) are coaxial.

2. The assembly welding fixture for connecting the seat plate assembly, the transmission connecting flange and the pipe beam assembly according to claim 1 is characterized in that: The base frame (1) is welded with horn steel, the working base plate (2) is welded on the base frame (1), the high assembly is provided with a flange linear guide rail (7) fixedly connected to the working base plate (2) by screws and mounting grooves, the gas valve switch mounting plate (8) is welded on the working base plate (2), and the manual valve (9) is fixedly connected to the gas valve switch mounting plate (8) by screws.

3. A welding fixture for assembling a connecting seat plate assembly, a transmission connecting flange and a pipe beam assembly according to claim 1 or 2, characterized in that: The first support plate (11), the first lower stopper (12), the second side stopper (16), and the first flat key (17) are fixedly connected to the first positioning base (10) by means of screws; the first side stopper (13) and the first spring (19) are fixedly connected to the first positioning base (10) by means of screws and a first connecting pin (18); the first adjustment plate (14) is fixedly connected to the first support plate (11) by means of screws; and the first quick clamp (15) is fixedly connected to the first adjustment plate (14) by means of screws.

4. The assembly welding fixture for connecting the seat plate assembly, the transmission connecting flange and the pipe beam assembly according to claim 3 is characterized in that: The second flat key (20), the third side block (21), and the fourth side block (23) are fixedly connected to the positioning base plate (22) by means of screws, and the second spring (24) is fixedly connected to the positioning base plate (22) by means of screws and a first connecting pin (18).

5. The assembly welding fixture for connecting the seat plate assembly, the transmission connecting flange and the pipe beam assembly according to claim 3 is characterized in that: The cushion block (27) and the third flat key (28) are fixedly connected to the U-shaped block (26) by means of screws.

6. The assembly welding fixture for connecting the seat plate assembly, the transmission connecting flange and the pipe beam assembly according to claim 3 is characterized in that: The second support plate (30), the fifth side stopper (33), the second lower stopper (34), and the cylinder joint (37) are fixedly connected to the second positioning base (29) by means of screws; The sixth side stopper (41) and the third spring (36) are fixedly connected to the second positioning base (29) by means of screws and a third connecting pin (35); the second adjustment plate (31) is fixedly connected to the second support plate (30) by means of screws; the second quick clamp (32) is fixedly connected to the second adjustment plate (31) by means of screws; the cylinder (39) and the fourth flat key (40) are fixedly connected to the cylinder mounting seat (38) by means of screws; and the cylinder (39) is fixedly connected to the cylinder joint (37) by means of threads.

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