CN210297493U

CN210297493U - Buckling strip bending and welding tool

Info

Publication number: CN210297493U
Application number: CN201921185113.8U
Authority: CN
Inventors: 刘腾腾; 孙红军; 刘行行
Original assignee: Suzhou Alto Electromechanical Co Ltd
Current assignee: Suzhou Alto Electromechanical Co Ltd
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2020-04-10
Anticipated expiration: 2029-07-25

Abstract

The utility model discloses a profile buckling welding frock of bending relates to motor production facility technical field, aims at solving the lower problem of production efficiency among the prior art. The key point of the technical scheme is that a limiting groove is arranged on the side wall of the abdicating groove close to the chip positioning shaft, and the limiting groove is positioned below the stator core and extends to the top end of the workbench; the outer side of the stator core is vertically provided with a buckling strip, the top end of the buckling strip is bent and abutted against the top end of the stator core, and the bottom end of the buckling strip extends into the abdicating groove; the outer side wall of the workbench is provided with a mounting hole communicated with the abdicating groove, and an ejector rod used for driving the buckling strip to bend is arranged in the mounting hole in a sliding manner. At first establish the stator core cover on chip location is epaxial, makes the profile be the one end of buckling and stator core's top offset, and at this moment, the bottom of profile is located the groove of stepping down, stretches into the ejector pin in the mounting hole and promotes the ejector pin and make the profile crooked to the spacing groove direction, can make the bottom of profile and stator core offset to the efficiency of production has been improved.

Description

Buckling strip bending and welding tool

Technical Field

The utility model belongs to the technical field of the technique of motor production facility and specifically relates to a profile bending welding frock is related to.

Background

The stator core is an important part of the stator and is also a main component of a magnetic circuit of the motor. The stator punching sheet is composed of stator punching sheets, ventilation groove sheets, positioning ribs, an upper pressing plate, a lower pressing plate, tensioning bolts, a supporting plate and the like. The stator core is formed by stacking stator punching sheets on positioning ribs according to a certain rule, welding the positioning ribs on a base ring plate through a supporting plate, and pressing the core into a whole through upper and lower pressing plates by using tensioning bolts.

Stator core among the prior art piles up according to certain law by the stator punching and is touching, puts the profile into the profile groove, then strikes the iron plate by hand and fixes the profile in the profile groove, strikes the both ends of profile again by hand and makes the both ends of profile buckle for the crooked part in profile both ends is laminated with stator core's upper and lower terminal surface respectively, thereby makes the profile fix on stator core.

However, the above prior art solutions have the following drawbacks: the two ends of the buckling strip are knocked manually to be bent, so that time and labor are wasted, and the production efficiency is lower.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a profile buckle welding frock of bending, it has the effect that can improve production efficiency.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: a buckling strip bending and welding tool comprises a workbench and a chip positioning shaft, wherein the chip positioning shaft is installed in the center of the workbench, a stator core is sleeved on the chip positioning shaft and above the workbench, a abdicating groove is formed in the top end of the workbench, a limiting groove is formed in the side wall, close to the chip positioning shaft, of the abdicating groove, and the limiting groove is located below the stator core and extends to the top end of the workbench; stator slots are vertically arranged on the outer side of the stator core, buckling strips are arranged in the stator slots, the top ends of the buckling strips are bent and abut against the top ends of the stator core, and the bottom ends of the buckling strips extend into the abdicating slots; the outer side wall of the workbench is provided with a mounting hole communicated with the abdicating groove, and an ejector rod used for driving the buckling strip to bend is arranged in the mounting hole in a sliding manner.

Through adopting above-mentioned technical scheme, at first establish the stator core cover on chip location is epaxial, then will detain the strip and put into the stator slot, make the knot strip be the one end of buckling and stator core's top offset, at this moment, the bottom of knot strip stretches into the inslot of stepping down, stretch into the mounting hole with the ejector pin and promote the ejector pin and make ejector pin and knot strip offset to make the knot strip crooked to the spacing groove direction under the impetus of ejector pin, can make the bottom of knot strip and stator core offset, thereby improved the efficiency of production.

The utility model discloses further set up to: the ejector rod is in a trapezoid shape, and the area of one end, close to the chip positioning shaft, of the ejector rod is smaller than the area of one end, far away from the chip positioning shaft, of the ejector rod.

Through adopting above-mentioned technical scheme, the ejector pin is trapezoidal setting, is convenient for stretch into the mounting hole with the ejector pin, has reached the effect of being convenient for operate.

The utility model discloses further set up to: the top of workstation is provided with the flange along the circumference of chip location axle, the flange is located between chip location axle and the stator core.

Through adopting above-mentioned technical scheme, at the in-process that the pneumatic cylinder upwards pushed out stator core, the flange offsets in the holding down plate of stator core all the time, avoids holding down plate and chip location axle contact and causes the damage to the holding down plate, has played the guard action to the holding down plate.

The utility model discloses further set up to: and a positioning rod matched with the stator core is arranged on the outer side wall of the chip positioning shaft.

Through adopting above-mentioned technical scheme, at the in-process of installation stator core, make stator core move down according to the length direction of registration lever for the location that the position of two adjacent stator pieces can be accurate makes things convenient for stator core's installation, has reached the effect of the operation of being convenient for.

The utility model discloses further set up to: the outer side wall of the chip positioning shaft is vertically provided with a groove, the groove is V-shaped, a filling block is vertically inserted in the groove and is V-shaped matched with the groove, and the positioning rod is positioned on the filling block.

Through adopting above-mentioned technical scheme, at the in-process of taking out stator core, the locating lever is along with stator core rebound easily to drive the filler block rebound, can avoid stator core to take place the friction with the filler block when rebound and cause the damage to stator core. On the other hand, when the positioning rod is damaged after long-term use, the filling block can be taken out of the groove for replacement.

The utility model discloses further set up to: the both sides of recess all are provided with the constant head tank, the constant head tank extends to the top of chip location axle, the both ends of filling up piece along chip location axle circumference are provided with the locating piece with constant head tank matched with.

Through adopting above-mentioned technical scheme, constant head tank and locating piece inlay card cooperation can guarantee that the filling block can only reciprocate in the recess, can not follow the radial outside removal of chip location axle, can avoid filling block and stator core contact to take place the friction and cause the damage to stator core's quality has been guaranteed.

The utility model discloses further set up to: be provided with the ring channel on the workstation, the inside wall of ring channel and the laminating of the outside wall of chip location axle mutually, be provided with the clamping ring along the circumference of chip location axle in the ring channel, stator core is located the ring channel and offsets with the top of clamping ring, the flange upwards extends the formation by the inside wall of clamping ring.

Through adopting above-mentioned technical scheme, the flange setting is on the clamping ring, and after the flange used for a long time and caused the damage, it can to change to take out the clamping ring.

The utility model discloses further set up to: the vertical breach that is provided with on the inside wall of clamping ring, the locating lever stretches into in the breach.

Through adopting above-mentioned technical scheme, in the locating lever stretched into the breach, and the width of breach was greater than the thickness of locating lever, before stator core rebound, can rotate the clamping ring, made the inboard spread groove of stator core and locating lever contactless, the locating lever led to the fact the damage to stator core when can avoiding stator core rebound to stator core's quality has been guaranteed.

To sum up, the utility model discloses a beneficial technological effect does:

1. through the arrangement of the limiting groove, the abdicating groove, the mounting hole and the ejector rod, the production efficiency is improved;

2. the flange and the pressing ring are arranged, so that the lower pressing plate can be protected, and the flange is convenient to replace;

3. through the setting of locating lever, recess, filler block, can avoid stator core to take place the friction with the filler block when rebound and cause the damage to stator core, on the other hand has reached the effect of the operation of being convenient for.

Drawings

Fig. 1 is a schematic view of an overall structure of a fastening strip bending and welding tool shown in the embodiment of the present invention;

fig. 2 is a schematic structural view of another fastening strip bending and welding tool shown in the embodiment of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a schematic structural diagram for showing the connection relationship between the ejector rod and the abdicating groove in the embodiment of the present invention;

fig. 5 is an enlarged view of a portion B in fig. 4.

In the figure, 1, a workbench; 11. a chip positioning shaft; 12. a stator core; 13. buckling strips; 14. a stator slot; 15. a lower pressing plate; 2. a groove; 21. filling blocks; 22. positioning a rod; 23. positioning blocks; 24. positioning a groove; 3. an annular groove; 31. pressing a ring; 32. a flange; 33. a limiting block; 34. a notch; 35. a yielding groove; 36. a limiting groove; 37. mounting holes; 38. and a push rod.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a profile bending welding frock, including workstation 1 and chip location axle 11, chip location axle 11 is installed at workstation 1 central authorities, and is concrete, and workstation 1 is the ring form and overlaps and establish on chip location axle 11, and workstation 1 can follow the axial relative slip of chip location axle 11. The upper portion of the working table 1 on the chip positioning shaft 11 is sleeved with a stator core 12, the outer side of the stator core 12 is vertically provided with a stator slot 14, a buckling strip 13 is vertically arranged in the stator slot 14, and the top end of the buckling strip 13 is bent and abuts against the top end of the stator core 12.

Referring to fig. 2 and 3, a groove 2 is vertically formed on the outer side wall of the chip positioning shaft 11, the groove 2 is V-shaped, a filling block 21 is vertically inserted into the groove 2, and in this embodiment, the outer side wall of the filling block 21 is arc-shaped and completely located in the groove 2. The filling block 21 is V-shaped and matched with the groove 2, the two side walls of the groove 2 are provided with positioning grooves 24 and the positioning grooves 24 extend to the top end of the chip positioning shaft 11, and the two ends of the filling block 21 along the circumferential direction of the chip positioning shaft 11 are provided with positioning blocks 23 which are in clamping fit with the positioning grooves 24. In the present embodiment, the positioning groove 24 has a triangular shape, and the positioning block 23 has a triangular shape matching the positioning groove 24. The outer side wall of the filler block 21 is vertically provided with a positioning rod 22, the stator core 12 (refer to fig. 1) is formed by stacking a plurality of stator sheets, the inner side of the stator core 12 is vertically provided with connecting grooves (not shown in the figure), and the connecting grooves are uniformly distributed along the circumferential direction of the stator core 12, so that the stator core 12 can move downwards along the length direction of the positioning rod 22, and the positions of two adjacent stator sheets are accurate.

Referring to fig. 4 and 5, the working table 1 is provided with an annular groove 3, the inner side wall of the annular groove 3 is attached to the outer side wall of the chip positioning shaft 11, a pressing ring 31 is arranged in the annular groove 3 along the circumferential direction of the chip positioning shaft 11, the stator core 12 (see fig. 1) is located in the annular groove 3 and abuts against the top end of the pressing ring 31, a notch 34 is vertically arranged on the inner side wall of the pressing ring 31, and the positioning rod 22 extends into the notch 34. The inner side wall of the pressing ring 31 extends upwards to form a flange 32, the flange 32 is located between the chip positioning shaft 11 and the stator core 12, and the inner side wall of the lower pressing plate 15 of the stator core 12 abuts against the flange 32. Offer the groove 35 in the ring channel 3, offer the groove 35 and be provided with spacing groove 36 on being close to the lateral wall of chip location axle 11, spacing groove 36 is located stator core 12 below and extends to the diapire of ring channel 3. The bottom end of the fastening strip 13 (refer to fig. 1) extends into the abdicating groove 35, the outer side wall of the workbench 1 is provided with a mounting hole 37 communicated with the abdicating groove 35, and the mounting hole 37 is internally provided with a push rod 38 for driving the fastening strip 13 to bend in a sliding manner. In the present embodiment, the lift pins 38 are disposed in a trapezoid shape, and the area of the end of the lift pin 38 close to the chip positioning shaft 11 is smaller than the area of the end of the lift pin 38 far from the chip positioning shaft 11.

The implementation principle of the embodiment is as follows:

when the fastening strips 13 need to be installed, firstly, the stator core 12 is sleeved on the chip positioning shaft 11 along the length direction of the positioning rod 22, then the fastening strips 13 are placed in the stator slots 14, so that the bent ends of the fastening strips 13 are abutted against the top ends of the stator core 12, at this time, the bottom ends of the fastening strips 13 are located in the abdicating slots 35, the ejector rods 38 are extended into the installation holes 37 and push the ejector rods 38 to abut against the ejector rods 38 and the fastening strips 13, and the fastening strips 13 are bent towards the limiting slots 36 under the pushing action of the ejector rods 38, so that the bent parts of the bottom ends of the fastening strips 13 are abutted against the bottom ends of the lower pressing plates 15. After the bottom ends of the buckling strips and the lower pressing plate are abutted, the buckling strips 13 and the lower pressing plate 15 are welded together.

When stator core 12 needs to be taken out, work platform 1 is pushed to move upwards through the hydraulic cylinder, and because locating lever 22 stretches into breach 34, stator core 12 makes stator core 12 at the in-process of rebound, and locating lever 22 can not follow stator core 12 rebound, has avoided stator core 12 to take place the friction and cause the damage to stator core 12 at rebound in-process and locating lever 22 to the quality of stator core 12 has been guaranteed. When the stator core 12 is separated from the core positioning shaft 11, the stator core 12 can be taken out from the table 1 by the holding device.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a profile buckle welding frock of bending, includes workstation (1) and chip location axle (11), install at workstation (1) central authorities chip location axle (11), it is equipped with stator core (12), its characterized in that just to be located workstation (1) top cover on chip location axle (11): the top end of the workbench (1) is provided with a yielding groove (35), the side wall of the yielding groove (35) close to the chip positioning shaft (11) is provided with a limiting groove (36), and the limiting groove (36) is located below the stator core (12) and extends to the top end of the workbench (1); the outer side of the stator core (12) is vertically provided with a buckling strip (13), the top end of the buckling strip (13) is bent and abutted against the top end of the stator core (12), and the bottom end of the buckling strip (13) extends into the abdicating groove (35); the outer side wall of the workbench (1) is provided with a mounting hole (37) communicated with the abdicating groove (35), and an ejector rod (38) used for driving the buckling strip (13) to bend is arranged in the mounting hole (37) in a sliding mode.

2. The buckling strip bending and welding tool according to claim 1, characterized in that: the ejector rod (38) is arranged in a trapezoid shape, and the area of one end, close to the chip positioning shaft (11), of the ejector rod (38) is smaller than the area of one end, far away from the chip positioning shaft (11), of the ejector rod (38).

3. The buckling strip bending and welding tool according to claim 1, characterized in that: the top of workstation (1) is provided with flange (32) along the circumference of chip location axle (11), flange (32) are located between chip location axle (11) and stator core (12).

4. The buckling strip bending and welding tool according to claim 3, characterized in that: be provided with holding down plate (15) between stator core (12) and workstation (1), be provided with on the lateral wall of chip location axle (11) and be used for making stator core (12) correspond accurate locating lever (22) with holding down plate (15).

5. The buckling strip bending and welding tool according to claim 4, characterized in that: a groove (2) is vertically arranged on the outer side wall of the chip positioning shaft (11), and the groove (2) extends to the top end of the chip positioning shaft (11); the groove (2) is V-shaped, a filling block (21) is vertically inserted into the groove (2), the filling block (21) is V-shaped matched with the groove (2), and the positioning rod (22) is located on the filling block (21).

6. The buckling strip bending and welding tool according to claim 5, characterized in that: all be provided with constant head tank (24) on two lateral walls of recess (2), constant head tank (24) extend to the top of chip location axle (11), fill out piece (21) and be provided with along the both ends of chip location axle (11) circumference and inlay complex locating piece (23) with constant head tank (24).

7. The buckling strip bending and welding tool according to claim 4, characterized in that: be provided with ring channel (3) on workstation (1), the inside wall of ring channel (3) and the outside wall of chip location axle (11) are laminated mutually, be provided with clamping ring (31) along the circumference of chip location axle (11) in ring channel (3), stator core (12) are located ring channel (3) and offset with the top of clamping ring (31), flange (32) are upwards extended by the inside wall of clamping ring (31) and are formed.

8. The buckling strip bending and welding tool according to claim 7, characterized in that: a notch (34) is vertically formed in the inner side wall of the pressing ring (31), and the positioning rod (22) extends into the notch (34).