CN201805322U

CN201805322U - Rotor shaft process equipment

Info

Publication number: CN201805322U
Application number: CN2010202655378U
Authority: CN
Inventors: 糜震东; 屠欣栋; 胡坤全
Original assignee: Shanghai Brose Electric Motors Co Ltd
Current assignee: Shanghai Brose Electric Motors Co Ltd
Priority date: 2010-07-20
Filing date: 2010-07-20
Publication date: 2011-04-20
Anticipated expiration: 2020-07-20

Abstract

The utility model relates to rotor shaft process equipment, in particular to a method for extruding a rotor shaft in a motor provided with worm drive output. The process equipment comprises a tooling unit, a driving unit, two slide blocks, and a fixing seat, wherein the tooling unit comprises a base, a hollow support is arranged on the base, a baffle is fixed on the upper edge of the inner wall of the support, a rotating cylinder is connected to the center of the base in a flexible and loose manner, and a clamping air claw is further connected to the upper end of the rotating cylinder; the driving unit comprises a propel disc, and a slope is formed on the inner wall of the propel disc near the upper end; the two slide blocks are arranged on two sides of the inner wall of the propel disc, and the contact surface between the slide blocks and the inner wall of the propel disc is a slope; and the fixing seat is fixed on the slide blocks, a cutter is arranged on the fixing seat on the side near the rotor shaft, and a spring is arranged between the slide blocks and the baffle. By adopting the rotor shaft process equipment provided by the utility model, the risk of larger shaft vibration caused by direct pressing of a worm is avoided, at the same time, ribs processed on the rotor shaft have better accuracy, and stress on all the ribs is uniform after the rotor shaft is assembled with the worm, thereby ensuring that the worm and the shaft have favorable concentricity after assembly, and further improving the stability of the rotor shaft.

Description

The armature spindle process equipment

Technical field

The utility model relates to a kind of processing method, refers to the equipment of the armature spindle in the motor of a kind of processing belt worm-drive output especially.

Background technology

In the application of some low-power machines, can use Worm and Worm Gear Driving (as the automotive sheet motor and shake the window motor).As shown in Figure 1, worm screw 950 is press-fited on armature spindle 932, the link 9321 of armature spindle 932 is the component parts of motor body 931, worm screw 950 is fixedly arranged on the driving end 9322 of armature spindle 932, rotate by driven by motor armature spindle 932, the while can outwards transmit power by worm gear via the mating reaction of worm gear (not shown) and worm screw 950 again.

In the prior art, the course of processing of armature spindle 932 is to adopt the annular knurl processes to go out some ribs 940 on driving end 9322, and in worm screw 950, be formed with axially extending bore 951, by the interference fit between this axially extending bore 951 and the rib 940 worm screw 950 is connected on the armature spindle 932 then; But because the rib number that processes is too much, its precision often is difficult to control when adopting annular knurl processes armature spindle 932, will cause the unbalance stress of each rib when assemble with worm screw like this, makes the stability reduction of whole drive of motor.

Summary of the invention

Therefore the technical problems to be solved in the utility model processes the higher rib of precision for a kind of new armature spindle process equipment is provided, and realizes the high accuracy assembling of worm screw.

For solving the problems of the technologies described above, the utility model provides a kind of armature spindle process equipment, is used for the armature spindle of the motor of processing belt worm-drive output, and wherein, this device mainly comprises:

One base, a rotary cylinder is set up in the loosening mode of elasticity in described base center, the upper end of described rotary cylinder further is connected with one and clamps the gas pawl, also be connected with the bearing of a hollow on the described base, described bearing is coated on described rotary cylinder and clamps gas pawl outside, both sides on described bearing top are set up a slide block respectively, one pushing disc is set up on the described base in the liftable mode and is sheathed on the described bearing outside, one end of described slide block is resisted against described pushing disc inboard respectively, and described slide block and bearing inboard mutually against contact-making surface between be the inclined-plane and cooperate, described slide block is installed with a holder away from the other end of described pushing disc, described holder is provided with cutter near an end of armature spindle, inboard relative two slide positions of described bearing are respectively arranged with a baffle plate, press to be provided with a spring between described baffle plate and slide block.

Further improvement of the utility model is, described base center is recessed to form a concave surface downwards, offer a main aperture at the concave surface middle part, offer several secondary holes around one week of main aperture, the bottom of rotary cylinder is combined with a base plate, be respectively arranged with leading post and some secondary guide pillars at corresponding main aperture in the bottom surface of base plate and secondary hole site, leading post passes corresponding main aperture and secondary hole respectively with some secondary guide pillars during connection, and be arranged on the base by the annular card division of secondary guide pillar bottom, on leading post, be arranged with spring, spring one end is resisted against the bottom surface of base plate, and the other end is resisted against base, realizes that thus elasticity connects.

Further improvement of the utility model is, is formed with matched in clearance between described leading post, secondary guide pillar and main aperture, the secondary hole.

Further improvement of the utility model is, is provided with one directly over the described clamping gas pawl and axially sets upright the unit.

Further improvement of the utility model is, is provided with one over against a side of described cutter on the described holder and radially sets upright the unit.

Further improvement of the utility model is, also is provided with a pressure sensor and controller on the described slide block.

Further improvement of the utility model is that the cutter head angle of described cutter is 92 °～94 °.

By armature spindle process equipment of the present utility model, can avoid because of directly pressing the axle that worm screw caused to jump the risk that strengthens, make the rib precision that processes on the armature spindle better simultaneously, assemble the stressed even of each rib of back with worm screw, keep a good concentricity with worm screw after the assurance assembling and axle, thereby improved the stability of armature spindle.。

Description of drawings

Fig. 1 is a worm screw syndeton schematic diagram of the prior art;

Fig. 2 is the process equipment schematic perspective view of a preferred embodiment of the present utility model;

Fig. 3 is a process equipment volume rendering schematic diagram shown in Figure 2;

Fig. 4 is the cutter schematic diagram of a preferred embodiment of the present utility model;

Fig. 5 is the machining state schematic diagram of a preferred embodiment of the present utility model;

Fig. 6 is the local enlarged diagram of Fig. 5;

Fig. 7 is the local enlarged diagram of a preferred embodiment of the present utility model; And

Fig. 8 is the worm shaft assembly method schematic diagram of a preferred embodiment of the present utility model.

Embodiment

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

See also Fig. 2 and shown in Figure 3, be the process equipment schematic perspective view of a preferred embodiment of the present utility model, as can be seen from the figure the used process equipment of the utility model mainly comprises with the lower part:

One frock unit 10, comprise a base 11, the top of base 11 is provided with the bearing 12 of a hollow, the upper limb place of bearing 12 inwalls is fixed with baffle plate 13, one rotary cylinder 14 is connected in base 11 centers in the loosening mode of elasticity, further be connected with one in the upper end of rotary cylinder 14 and clamp gas pawl 15, wherein the loosening connected mode of this elasticity realizes by following structure: base 11 centers are recessed to form a concave surface 111 downwards, offer a main aperture 1111 at concave surface 111 middle parts, offer several secondary holes 1112 around 1,111 one weeks of main aperture, the bottom of rotary cylinder 14 is combined with a base plate 141, be respectively arranged with a leading post 1411 and some secondary guide pillars 1412 in corresponding main aperture 1111 in the bottom surface of base plate 141 and 1112 positions, secondary hole, leading post 1411 passes corresponding main aperture 1111 and secondary hole 1112 respectively with some secondary guide pillars 1412 during connection, and be arranged on the base 11 by the annular card division 1413 of secondary guide pillar 1412 bottoms, on leading post 1411, be arranged with spring 1414, spring 1,414 one ends are resisted against the bottom surface of base plate 141, the other end is resisted against base 11, realizes that thus elasticity connects; Be formed with the matched in clearance of 0.05mm between leading post 1411, secondary guide pillar 1412 and main aperture 1111, the secondary hole 111, realize loosening the connection thus;

One driver element 20 comprises a pushing disc 21, and pushing disc 21 is set up on the base 11 in the liftable mode by push rod, and the place near to the upper end of pushing disc 21 inwalls forms an inclined-plane 211; Be provided with two slide blocks 22 in the both sides of pushing disc 21 inwalls, contact-making surface one inclined-plane 221 of slide block 22 and pushing disc 21 inwalls, by cooperatively interacting of pushing disc 21 ramps 211 and slide block 22 ramps 221, but make slide block 22 move left and right under the effect of pushing disc 21; One holder 23 is fixed on the slide block 22, and holder 23 is provided with cutter 24 near a side of armature spindle 32, and a spring 25 is set between described slide block 22 and the above-mentioned baffle plate 13; Slide block 22 is after processing, and the effect by spring 25 makes it follow pushing disc 21 backhauls;

One axially sets upright unit 41, be arranged at above-mentioned clamping gas pawl 13 directly over, can under the driving of motor, do axial reciprocating motion, be formed with a groove 411 in its bottom;

One radially sets upright unit 42, comprise two wiper blocks 421,422, cooperate shown in Figure 6, wiper block 421 is arranged on the holder 23 side over against described cutter 24, and be synchronized with the movement with cutter 24, the bottom of wiper block 421 is provided with spring, and (spring is located in the slide block, do not draw among the figure), provide radially a resiliency supported by spring to wiper block 421, and the head of wiper block 421 is set to than cutter 24 heads more near armature spindle 32, its end near armature spindle 32 vertically is formed with a cone tank 421, and the structure of another wiper block 424 is identical with wiper block 421 with connection, so no longer repeat specification; Cooperatively interacting of the radially wiper block 421,424 that is provided with by both sides can radially be set upright armature spindle 32 before cutter 24 extruding armature spindles 32;

Also be provided with a pressure sensor 80 and a controller on the described slide block 22, in order to detect the extruding force (pressure sensor and controller are prior art, seldom are described herein at this) of 24 pairs of armature spindles 32 of cutter.

Show in conjunction with Fig. 2 Fig. 8, when processing rotor axle 32, with reference to following steps:

The first step: motor 30 is installed on the frock unit 10;

At first by clamping gas pawl 15 clamping motor bodies 31, utilize the gap between leading post 1411, secondary guide pillar 1412 and main aperture 1111, the secondary hole 1112 to radially wobble described motor 30, realize armature spindle 32 and the radial alignment of axially setting upright unit 41, and the head of described armature spindle 32 is inserted in the described groove 411 of axially setting upright 41 bottoms, unit;

Oppress described armature spindle 32 vertically by the described unit 41 of axially setting upright, and then make the spring 25 of described motor 30 bottoms that elastic deformation take place, thereby regulate the axial height of described armature spindle 32;

After installing is finished, drive promotion dish 21 and boost, the direction that drives slide block 22 past armature spindles 32 moves, and radially sets upright at first contact shoe axle 32 of unit 42, utilizes two cone tanks 421 to clamp armature spindles 32, radially sets upright; And then the described armature spindle 32 of promotion cutter 24 extruding; As better embodiment of the present utility model, when extruding, pass through the pressure sensor monitoring extruding force, when extruding force reaches 200 Ns, begin to calculate and be pressed into displacement, when extruding force reaches 200 Ns, can be considered as cutter 24 contacts fully with armature spindle 32, stop extruding when displacement reaches set point until being pressed into, can more accurate calculating push the degree of depth; And pressing method of the prior art is pressed into displacement for beginning to calculate when cutter 24 is pressed close to armature spindle 32, owing to have certain error between cutter 241 and the cutter 242, the surfaces to be machined of adding armature spindle 32 itself also exist certain asymmetric, have further reduced the precision that processes rib 50.

Second step: squeeze out one group of first group of rib 50 that extends vertically at driving end 321 places that described armature spindle 32 extends motor 30 bodies by cutter 24, be respectively rib 51, rib 52, rib 53, rib 54, described four ribs bar 50 radial equipartitions are on armature spindle 32;

The 3rd step: pushing disc 21 is advanced downwards, effect by spring 25 makes slide block 22 follow pushing disc 21 backhauls, then armature spindle 32 is rotated vertically 135 ° (or 225 °), by the described axial height of axially setting upright unit 41 adjusting armature spindles 32, one section axial distance staggers once more, repeat above-mentioned steps and process another group four ribs bar 50, be respectively rib 55, rib 56, rib 57, rib 58, described eight ribs 50 radially are distributed on the armature spindle 32; Because the surface to be machined of armature spindle 32 exists asymmetric, and there is certain error between cutter 241 and the cutter 242, when armature spindle 32 rotates other angles (for example 45 °), further strengthen the error that produces easily, and being rotated the rib 50 that 135 ° (or 225 °) can make cutter 241 and cutter 242 process vertically, armature spindle 32 is evenly distributed on two semiaxis of armature spindle 32, the rib 50 of having avoided each cutter 24 to process is distributed on the same semiaxis, thereby improves the precision that processes rib;

Be pressed into the force value in final position by described pressure sensor 80 monitorings, during cutter 24 extruding armature spindles 32, cutter 24 is under normal condition, its force value is in the stable scope, and when cutter 24 wearing and tearing, it is big that force value can become gradually, so be pressed into the force value in final position by described pressure sensor 80 monitorings, and when the force value in described final position exceeds set point, change described cutter 24, to guarantee working (machining) efficiency;

Consulting Fig. 4 once more shows, cutter schematic diagram for a preferred embodiment of the present utility model, cutter 24 as can be seen from the figure described in the utility model has two cutter heads, is respectively cutter head 241 and cutter head 242, and the angle of described cutter head 241,242 is set to 92 °～94 °; Cooperate shown in Figure 6, with rib 52 is that example describes, when cutter head of the present utility model pushes armature spindle 32, the cutter head extrusion position sink and will expect to push toward both sides two ribs 521,522 of formation, and thereby this two ribs 521,522 can apply a compressing power to cutter head and clamp cutter head, be set to 92 °～94 ° through the utility model angle after a large amount of experiments, cutter head is subjected to compressing power minimum, the easiest withdrawing under this angle.Described cutter 24 is 100～300mm/min from initial position to the closing speed that is pressed into original position, and described cutter 24 is 45～150mm/min from being pressed into original position to the work speed that is pressed into the final position.

Claims

1. armature spindle process equipment is used for the armature spindle of the motor of processing belt worm-drive output, it is characterized in that this equipment comprises:

2. armature spindle process equipment as claimed in claim 1 is characterized in that:

Described base center is recessed to form a concave surface downwards, offer a main aperture at the concave surface middle part, offer several secondary holes around one week of main aperture, the bottom of rotary cylinder is combined with a base plate, be respectively arranged with leading post and some secondary guide pillars at corresponding main aperture in the bottom surface of base plate and secondary hole site, leading post passes corresponding main aperture and secondary hole respectively with some secondary guide pillars during connection, and be arranged on the base by the annular card division of secondary guide pillar bottom, on leading post, be arranged with spring, spring one end is resisted against the bottom surface of base plate, the other end is resisted against base, realizes that thus elasticity connects.

3. armature spindle process equipment as claimed in claim 2 is characterized in that: be formed with matched in clearance between described leading post, secondary guide pillar and main aperture, the secondary hole.

4. armature spindle process equipment as claimed in claim 1 is characterized in that: be provided with one directly over the described clamping gas pawl and axially set upright the unit.

5. armature spindle process equipment as claimed in claim 1 is characterized in that: be provided with one over against a side of described cutter on the described holder and radially set upright the unit.

6. armature spindle process equipment as claimed in claim 1 is characterized in that: also be provided with a pressure sensor and controller on the described slide block.

7. armature spindle process equipment as claimed in claim 1 is characterized in that: the cutter head angle of described cutter is 92 °～94 °.