CN204168079U - A kind of motor stator welding bench - Google Patents

Abstract

The utility model relates to a motor stator welding table, which comprises a base, a positioning column perpendicular to the base is arranged on the base, a base through hole is arranged in the middle of the base, an elastic mandrel with a central through hole is arranged in the base through hole, the base A top plate is placed on the top plate, the elastic mandrel passes through the middle through hole of the top plate, and the positioning column passes through the side through hole of the top plate. There is an expansion block in the central through hole of the elastic mandrel, and the top of the elastic mandrel is crimped with an upper platen parallel to the base with a through hole for the upper platen in the middle, and the bottom surface of the upper platen is provided with a groove corresponding to the positioning column , the top of the positioning column is inserted into the groove, a bolt is arranged above the upper pressing plate, and the tail of the bolt passes through the through hole of the upper pressing plate and extends into the central through hole of the elastic mandrel. When the bolt is tightened, the tail of the bolt touches the expansion block. Using the utility model saves time and labor for fixing and removing the motor stator, greatly reduces labor intensity and improves production efficiency.

Description

A motor stator welding station

technical field

The utility model relates to the field of motor manufacturing, in particular to a motor stator welding table which is convenient to fix and disassemble, reduces labor intensity and improves production efficiency.

Background technique

In the field of motor manufacturing, when welding the motor stator, the motor stator argon arc welding station used generally adopts a fixed mandrel, uses the slot of the stator core for positioning, and then welds the stator core. With this kind of welding station, after the stator core is welded, it is very troublesome to remove the stator from the welding station due to the thermal expansion of the stator core. Processing accuracy, quality is not stable. Using this welding station to weld the stator core not only increases the labor intensity of the workers, greatly reduces the production efficiency, but also may cause potential safety hazards.

Contents of the invention

The utility model mainly solves the problem that the fixed mandrel is adopted in the stator welding table of the original motor, and the notch of the stator iron core is used for positioning. After the stator iron core is welded, it is very time-consuming and laborious to remove the stator from the welding table due to the thermal expansion of the stator iron core. , high labor intensity, low production efficiency, and technical problems that also affect the machining accuracy; provide a motor stator welding table, which can easily remove the heat-expanded stator core from the welding table through structural improvement, saving time and effort. Reduce labor intensity, improve production efficiency, eliminate potential safety hazards, and ensure processing accuracy.

The above-mentioned technical problems of the utility model are mainly solved by the following technical solutions: the utility model includes a base, the base is provided with a positioning column perpendicular to the base, a base through hole is provided in the middle of the base, and the base through hole An elastic mandrel with a central through hole is provided, and a swelling block is arranged in the central through hole of the elastic mandrel. The top of the elastic mandrel is crimped with an upper plate parallel to the base and provided with a through hole of the upper pressure plate in the middle. Pressing plate, the bottom surface of the upper pressing plate is provided with a groove corresponding to the positioning column, the top of the positioning column is inserted into the groove, and a bolt is provided above the upper pressing plate, and the tail of the bolt passes through the through hole of the upper pressing plate and extends into the central through hole of the elastic mandrel. When using, first put the elastic mandrel on the base, put the expansion block in the elastic mandrel, then put the motor stator to be welded on the elastic mandrel, the positioning column is stuck in the positioning groove of the motor stator, and then put the The upper pressing plate is pressed onto the elastic mandrel, the groove on the upper pressing plate buckles the positioning column, and finally the bolt is screwed into the upper pressing plate. When the bolt is tightened, the tail of the bolt and the expansion block are pressed more and more tightly, and the expansion block is pressed When the force expands outward, the elastic mandrel is radially pressed outward by the expansion block, and the outer surface of the elastic mandrel is close to the inner wall of the motor stator, and the stator is reliably fixed. After the motor stator is welded, unscrew the bolts, and use other tools such as rods, columns or handles to push out the expansion block, then the elastic mandrel will be separated from the inner wall of the motor stator, and the motor stator can be easily taken out after removing the upper pressing plate . After testing, compared with the welding table with fixed mandrel, the utility model can increase the efficiency of welding the motor stator by more than 3 times, greatly reduce the labor intensity, avoid possible safety hazards, and greatly improve the production efficiency. Since the fixed motor stator is very stable and the disassembly of the motor stator is very convenient, the precision and quality of the motor stator are also guaranteed. the

Preferably, a top plate is provided above the base, and middle through holes and side through holes corresponding to the through holes of the base and the positioning columns are respectively arranged on the top plate, and the elastic mandrel passes through the middle through hole of the top plate, The positioning column passes through the side through hole of the top plate. The top plate is set on the elastic mandrel and the positioning column, and the top plate and the upper plane of the base are close to each other. The motor stator to be welded is placed on the top plate. After welding, unscrew the bolts and take out the expansion block. Just lift the top plate to Remove the motor stator. The use of the top plate makes it easier and more convenient to remove the motor stator.

Preferably, the through hole of the upper platen is formed by connecting a small circular hole and a large circular hole, the small circular hole is located above the large circular hole, the large circular hole and the small circular hole are connected to form a limiting groove, and the limiting groove is crimped at the top of the elastic mandrel. Ensure that the upper platen will not shift, and the motor stator will be more stable after it is installed on the welding table.

Preferably, the outer surface of the elastic mandrel has a taper, and the top end of the elastic mandrel is small and the bottom end is large. Since the motor stator is placed on the elastic mandrel from top to bottom, and the motor stator is taken out from the elastic mandrel from bottom to top, the taper design of the elastic mandrel with a small top and a large bottom ensures that the expansion block can be taken out Finally, the inner wall of the elastic mandrel and the motor stator is completely separated, so that the motor stator is placed on the elastic mandrel and taken off from the elastic mandrel becomes more smooth and convenient.

Preferably, a shoulder is provided at the lower part of the through hole of the base, and a ring of bosses are provided at the bottom end of the elastic mandrel, and the boss is engaged with the shoulder. Make sure that when removing the motor stator, the elastic mandrel will not be brought out to ensure a firm connection between the elastic mandrel and the base.

The beneficial effects of the utility model are: by changing the original fixed mandrel into an elastic mandrel and an expansion block, the motor stator can be fixed as long as the bolts are tightened, and as long as the bolts are unscrewed, the expansion blocks are taken out, and the top plate is lifted, the Quickly removing the motor stator saves time and effort, greatly reduces labor intensity, avoids potential safety hazards, greatly improves production efficiency, and ensures the accuracy and quality of the motor stator.

Description of drawings

Fig. 1 is a schematic diagram of an axial sectional structure of the utility model.

In the figure 1. base, 2. positioning column, 3. elastic mandrel, 4. expansion block, 5. upper pressure plate, 6. bolt, 7. top plate, 8. boss.

Detailed ways

The technical solutions of the present utility model will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.

Embodiment 1: A motor stator welding station of this embodiment, as shown in Figure 1, includes a base 1, two positioning columns 2 perpendicular to the base 1 are connected to the base 1, there is a base through hole in the middle of the base 1, and the base 1 There is a shoulder at the bottom of the through hole, and the elastic mandrel 3 with the central through hole is installed in the through hole of the base, and the bottom end of the elastic mandrel 3 has a circle of bosses 8, and the bosses 8 are engaged with the shoulders, and the elastic core The outer surface of the shaft 3 has a taper, the top of the elastic mandrel 3 is small, and the bottom is large, and the central through hole of the elastic mandrel 3 is equipped with a swelling block 4 . A top plate 7 is placed on the upper plane of the base 1, and the middle through hole and the side through hole corresponding to the base through hole and the positioning column 2 are arranged on the top plate 7, and the elastic mandrel 3 passes through the middle through hole of the top plate 7 for positioning. The column 2 passes through the side through hole of the top plate 7 . The top of the elastic mandrel 3 is crimped with an upper platen 5 which is parallel to the base 1 and has an upper platen through hole in the middle. The upper platen through hole is connected by a small round hole and a large round hole, and the small round hole is located above the large round hole. The big round hole and the small round hole are connected to form a limiting groove, and the limiting groove is crimped on the top of the elastic mandrel 3 . The bottom surface of the upper platen 5 has a groove corresponding to the positioning column 2, and the top of the positioning column 2 is inserted into the groove. Bolts 6 are installed on the upper plane of the upper pressing plate 5 , and the afterbody of the bolts 6 passes through the through holes of the upper pressing plate and extends into the central through hole of the elastic mandrel 3 . When the bolt is tightened, the tail of the bolt touches against the expansion block in the elastic mandrel.

Working process: When welding, first place the elastic mandrel on the base, place the expansion block in the elastic mandrel, then put the motor stator to be welded on the elastic mandrel, and the positioning column is stuck in the positioning groove of the motor stator , and then press the upper platen onto the elastic mandrel, the groove on the upper platen buckles the positioning column, and finally screw the bolts on the upper platen, when the bolts are tightened, the tails of the bolts and the expansion blocks are pushed tighter and tighter, The expansion block expands outward under force, and the elastic mandrel is radially pressed outward by the expansion block, and the outer surface of the elastic mandrel is close to the inner wall of the motor stator, and the stator is reliably fixed. After the motor stator is welded, unscrew the bolts and push out the expansion block with the help of other tools such as rods, columns or handles, then the elastic mandrel is separated from the inner wall of the motor stator, and the motor stator can be easily taken out by lifting the top plate.

After testing, compared with the welding table with fixed core shaft, the utility model can increase the efficiency of welding the motor stator by more than 3 times, greatly reduce the labor intensity, avoid possible safety hazards, and greatly improve the production efficiency. Since the fixed motor stator is very stable and the disassembly of the motor stator is very convenient, the precision and quality of the motor stator are also guaranteed.

Claims (7)

1. a motor stator welding bench, comprise base (1), it is characterized in that described base (1) is provided with the reference column (2) vertical with base (1), base plate through holes is provided with in the middle of base (1), the elastic central spindle (3) with central through hole is provided with in base plate through holes, expansion block (4) is provided with in the central through hole of elastic central spindle (3), the top of elastic central spindle (3) is crimped with parallel with described base (1), centre is provided with the top board (5) of top board through hole, the bottom surface of top board (5) is provided with the groove corresponding with reference column (2), in the groove described in the insertion of top of described reference column (2), the top of top board (5) is provided with bolt (6), the afterbody of bolt (6) passes top board through hole and stretches in the central through hole of elastic central spindle (3).

2. a kind of motor stator welding bench according to claim 1, it is characterized in that described base (1) top is provided with top board (7), top board (7) is provided with intermediate throughholes corresponding with base plate through holes, reference column (2) respectively and avris through hole, described elastic central spindle (3) is through the intermediate throughholes of top board (7), and described reference column (2) is through the avris through hole of top board (7).

3. a kind of motor stator welding bench according to claim 1 and 2, it is characterized in that described top board through hole is formed by connecting by small sircle hole and big hole, small sircle hole is positioned at the top of big hole, form limited impression after big hole is connected with small sircle hole, limited impression is crimped on the top of described elastic central spindle (3).

4. a kind of motor stator welding bench according to claim 1 and 2, it is characterized in that the lateral surface of described elastic central spindle (3) has tapering, the top of elastic central spindle (3) is little, bottom is large.

5. a kind of motor stator welding bench according to claim 3, it is characterized in that the lateral surface of described elastic central spindle (3) has tapering, the top of elastic central spindle (3) is little, bottom is large.

6. a kind of motor stator welding bench according to claim 1 and 2, it is characterized in that the bottom of described base plate through holes is provided with a shoulder, the bottom of described elastic central spindle (3) is provided with a circle boss (8), described boss (8) and described shoulder clamping.

7. a kind of motor stator welding bench according to claim 5, is characterized in that the bottom of described base plate through holes is provided with a shoulder, and the bottom of described elastic central spindle (3) is provided with a circle boss (8), described boss (8) and described shoulder clamping.