Turbine spot welding device for hydraulic torque converter

Abstract

The utility model relates to a turbine spot welding device for a hydraulic torque converter, which comprises a turbine shell, a blade core ring component, a lower electrode, a positioning shaft, a connecting bolt, an avoiding pressing plate, a locking block and a locking bolt, the positioning shaft is arranged in the center of the lower electrode, the positioning shaft is fixedly connected with the lower electrode through the connecting bolt, and the lower electrode is fixedly connected with the blade core ring component. A receding pressing plate is arranged above the positioning shaft, a locking block is arranged on the receding pressing plate, the locking block and the receding pressing plate are connected to the positioning shaft through a locking bolt, and the locking bolt sequentially penetrates through a connecting through hole of the locking block and a middle square groove of the receding pressing plate to be connected with a connecting screw hole of the positioning shaft. The turbine shell and the blade core ring assembly are installed between the receding pressing plate and the lower electrode through the positioning shaft. The hydraulic torque converter turbine welding device has the advantages of being convenient and fast to install and use, saving time and labor in operation, improving working efficiency and guaranteeing dimensional accuracy of hydraulic torque converter turbine welding.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic torque converter manufacturing, and in particular relates to a turbine spot welding device for a hydraulic torque converter. Background Art

[0002] like Figure 1 , Figure 2 As shown, the welding of the torque converter turbine mainly refers to the welding between the turbine shell 1 and the blade core ring assembly 2. At present, manual welding is generally used. The whole set of welding needs to be completed in two weldings: outer ring welding and inner ring welding. Each time welding, there are 28 welding points for the inner and outer rings respectively. The single-point welding has poor positioning accuracy, many processes, low work efficiency and high labor intensity. The turbine is mainly used for the power output of the torque converter, and its welding accuracy and form and position tolerance cannot be guaranteed in the manual method. Therefore, a convenient device that can ensure the welding size accuracy is needed. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a turbine spot welding device for a torque converter, so as to ensure the dimensional accuracy of the turbine welding of the torque converter and improve the work efficiency.

[0004] To achieve the above-mentioned purpose, the utility model provides a turbine spot welding device for a torque converter, including a lower electrode, a positioning shaft, a connecting bolt, a avoidance pressure plate, a locking block and a locking bolt, a positioning shaft is provided at the center of the lower electrode, a avoidance pressure plate is provided above the positioning shaft, a locking block is provided on the avoidance pressure plate, and the locking block and the avoidance pressure plate are connected to the positioning shaft by the locking bolt.

[0005] The lower electrode is cylindrical, a positioning shaft positioning hole is provided at the center of the upper surface of the lower electrode, a plurality of positioning shaft mounting screw holes are provided on the plane of the positioning hole, and an arc surface is provided around the upper surface of the lower electrode to match the arc surface of the turbine shell.

[0006] The positioning shaft is a two-section type, the lower section is a cylinder, the upper section is a convex key, a connecting screw hole is provided in the center of the positioning shaft, the lower end of the cylinder cooperates with the positioning shaft positioning hole of the lower electrode for positioning, the outer surface of the cylinder cooperates with the central circular hole of the turbine shell for positioning, and an installation through hole is provided on the upper surface of the cylinder, and the positioning shaft is fixedly connected to the lower electrode by connecting bolts.

[0007] The avoidance pressure plate is disc-shaped, with a middle square groove at the center of the avoidance pressure plate, which cooperates with the convex key of the upper section of the positioning shaft for positioning, and a plurality of avoidance through holes are arranged on the avoidance pressure plate, which are arranged corresponding to the welding points of the inner ring of the turbine shell.

[0008] The locking block is rectangular, and a connecting through hole is arranged at the center of the locking block.

[0009] The locking bolt passes through the connecting through hole of the locking block, the middle square groove of the avoidance pressure plate and the connecting screw hole of the positioning shaft in sequence, and the turbine shell and blade core ring assembly are installed between the avoidance pressure plate and the lower electrode through the positioning shaft.

[0010] By adopting the above technical scheme, the beneficial effects of the utility model are as follows: the turbine shell and the blade core ring assembly are positioned and pressed on the lower electrode through the positioning shaft, the avoidance pressure plate, the locking block and the locking bolt, and the lower electrode is installed on the work table of the automatic spot welding machine to complete the spot welding of the torque converter turbine; the device is easy and quick to install and use, saves time and effort in operation, improves work efficiency, and ensures the dimensional accuracy of the torque converter turbine welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the turbine housing and blade core ring assembly of the torque converter.

[0012] Figure 2 yes Figure 1 sectional view of .

[0013] Figure 3 It is a structural schematic diagram of an embodiment of the utility model.

[0014] Figure 4 yes Figure 3 sectional view of .

[0015] Figure 5 It is a structural schematic diagram of the lower electrode in the utility model.

[0016] Figure 6 yes Figure 5 sectional view of .

[0017] Figure 7 It is a structural schematic diagram of the positioning shaft in the utility model.

[0018] Figure 8 yes Figure 7 sectional view of .

[0019] Fig. 9 It is a structural schematic diagram of the avoidance pressure plate in the utility model.

[0020] Fig.10 yes Fig. 9 sectional view of .

[0021] Fig.11 It is a structural schematic diagram of the locking block in the utility model.

[0022] Fig.12 yes Fig.11 sectional view of .

[0023] In the figure: 1-turbine shell, 101-center circular hole, 2-blade core ring assembly, 3-lower electrode, 301-positioning hole, 302-mounting screw hole, 4-positioning shaft, 401-cylinder, 402-convex key, 403-connecting screw hole, 404-mounting through hole, 5-connecting bolt, 6-avoidance pressure plate, 601-middle square groove, 602-avoidance through hole, 7-locking block, 701-connecting through hole, 8-locking bolt. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0025] See also Figure 3 , Figure 4 A turbine spot welding device for a torque converter is composed of a lower electrode 3, a positioning shaft 4, a connecting bolt 5, a avoidance pressure plate 6, a locking block 7 and a locking bolt 8. A positioning shaft 4 is provided at the center of the lower electrode 3, and the positioning shaft 4 is fixedly connected to the lower electrode 3 by the connecting bolt 5. An avoidance pressure plate 6 is provided above the positioning shaft 4, and a locking block 7 is provided on the avoidance pressure plate 6. The locking block 7 and the avoidance pressure plate 6 are connected to the positioning shaft 4 by the locking bolt 8.

[0026] like Figure 5 , Figure 6 As shown, the lower electrode 3 is cylindrical, a positioning shaft positioning hole 301 is provided at the center of the upper surface of the lower electrode 3, a plurality of positioning shaft mounting screw holes 302 are provided on the plane of the positioning hole 301, and an arc surface is provided around the upper surface of the lower electrode 3 to match the arc surface of the outer shape of the turbine shell 1;

[0027] like Figure 7 , Figure 8 As shown, the positioning shaft 4 is a two-section type, the lower section is a cylinder 401, the upper section is a convex key 402, a connecting screw hole 403 is provided in the center of the positioning shaft 4, the lower end of the cylinder 401 cooperates with the positioning shaft positioning hole 301 of the lower electrode 3 for positioning, the outer surface of the cylinder 401 cooperates with the central circular hole 101 of the turbine shell 1 for positioning, and a mounting through hole 404 is provided on the upper surface of the cylinder 401, and the positioning shaft 4 is fixedly connected to the lower electrode 3 by a connecting bolt 5;

[0028] like Fig. 9 , Fig.10 As shown, the avoidance pressure plate 6 is disc-shaped, and a middle square groove 601 is provided at the center of the avoidance pressure plate 6. The middle square groove 601 cooperates with the convex key 402 of the upper section of the positioning shaft 4 for positioning. The avoidance pressure plate 6 is provided with a plurality of avoidance through holes 602, and the avoidance through holes 602 are arranged corresponding to the welding points of the inner ring of the turbine shell 1;

[0029] like Fig.11 , Fig.12As shown, the locking block 7 is rectangular, and a connecting through hole 701 is provided at the center of the locking block 7;

[0030] like Figure 4 As shown, the locking bolt 8 passes through the connecting through hole 701 of the locking block 7, the middle square groove 601 of the avoidance pressure plate 6 and the connecting screw hole 403 of the positioning shaft 4 in sequence, and the turbine shell 1 and the blade core ring assembly 2 are installed between the avoidance pressure plate 6 and the lower electrode 3 through the positioning shaft 4.

[0031] Working principle:

[0032] 1. Assemble the lower electrode 3 and the positioning shaft 4 through the connecting bolts 5 and install them on the workbench of the automatic spot welding machine;

[0033] 2. Place the turbine shell 1 and the blade core ring assembly 2 on the lower electrode 3 in sequence, and the central circular hole 101 of the turbine shell 1 is matched with the outer surface of the cylindrical body 401 of the positioning shaft 4 for positioning;

[0034] 3. Place the avoidance pressure plate 6 on the top of the blade core ring assembly 2, and the avoidance pressure plate 6 cooperates with the convex key 402 on the upper section of the positioning shaft 4 through the middle square groove 601 to position;

[0035] 4. Place the locking block 7 above the avoidance pressure plate 6, and connect the locking bolt 8 through the connecting through hole 701 of the locking block 7, the middle square groove 601 of the avoidance pressure plate 6 and the connecting screw hole 403 of the positioning shaft 4 in sequence, and fix the turbine shell 1 and the blade core ring assembly 2 between the avoidance pressure plate 6 and the lower electrode 3;

[0036] 5. Start the automatic spot welding machine to perform welding operations on the outer ring welding points and the inner welding points at the avoidance through hole 602 respectively;

[0037] 6. After welding is completed, loosen the locking bolt 8, remove the locking block 7 and the avoidance pressure plate 6, and take out the welded turbine shell 1 and the blade core ring assembly 2;

[0038] 7. Repeat steps 2-6 to weld the next set of turbine casing 1 and blade core ring assembly 2.

[0039] The above is only one embodiment of the present invention. It should be noted that, for those skilled in the art, obvious modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered to fall within the protection scope of the present invention.

Claims

1. A turbine spot welding device for a torque converter, comprising a turbine shell, a blade core ring assembly, a lower electrode, a positioning shaft, a connecting bolt, a position-avoiding pressure plate, a locking block and a locking bolt, characterized in that: A positioning shaft is provided at the center of the lower electrode, a avoidance pressure plate is provided above the positioning shaft, a locking block is provided on the avoidance pressure plate, the locking block and the avoidance pressure plate are connected to the positioning shaft by locking bolts, and the turbine shell and blade core ring assembly are installed between the avoidance pressure plate and the lower electrode through the positioning shaft.

2. A turbine spot welding device for a torque converter according to claim 1, characterized in that: The lower electrode is cylindrical, a positioning shaft positioning hole is provided at the center of the upper surface of the lower electrode, a plurality of positioning shaft mounting screw holes are provided on the plane of the positioning hole, and an arc surface is provided around the upper surface of the lower electrode to match the arc surface of the turbine shell.

3. The turbine spot welding device for a torque converter according to claim 1, characterized in that: The positioning shaft is a two-section type, the lower section is a cylinder, the upper section is a convex key, a connecting screw hole is provided in the center of the positioning shaft, the lower end of the cylinder cooperates with the positioning shaft positioning hole of the lower electrode for positioning, the outer surface of the cylinder cooperates with the central circular hole of the turbine shell for positioning, and an installation through hole is provided on the upper surface of the cylinder, and the positioning shaft is fixedly connected to the lower electrode by connecting bolts.

4. A turbine spot welding device for a torque converter according to claim 1, characterized in that: The avoidance pressure plate is disc-shaped, with a middle square groove at the center of the avoidance pressure plate, which cooperates with the convex key of the upper section of the positioning shaft for positioning, and a plurality of avoidance through holes are arranged on the avoidance pressure plate, which are arranged corresponding to the welding points of the inner ring of the turbine shell.

5. The turbine spot welding device for a torque converter according to claim 1, characterized in that: The locking block is rectangular, and a connecting through hole is arranged at the center of the locking block.

6. A turbine spot welding device for a torque converter according to any one of claims 1 to 5, characterized in that: The locking bolt passes through the connecting through hole of the locking block, the middle square groove of the avoidance pressure plate and the connecting screw hole of the positioning shaft in sequence to be connected.

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