CN206180797U - Motor shell presses circle to equip - Google Patents

Abstract

The utility model provides a motor shell presses circle to equip, including the order set up be used for the blanking go out the rectangle blank the blanking mould, be used for pressing the rectangle blank become in the middle of the bellied wave preflex piece in recessed both sides the preflex mould, be used for pressing into wave preflex piece the pressure circle mould of a cylinder casing and being used for carrying on the integer mould of integer to the interior external diameter of cylinder casing. The utility model discloses a motor shell presses circle equipment can press the motor casing that help sb. To attain his aim the high accuracy with panel, has saved raw and other materials moreover greatly, and showed manufacturing cost and the rejection rate has greatly reduced, has improved production efficiency and economic benefits's advantage in motor mass production.

Description

A kind of motor case pressure circle equipment

Technical field

The utility model is related to press round equipment Design technical field, and in particular to a kind of motor case pressure circle equipment.

Background technology

Stator is the matrix of motor, and columnar motor case is to carry motor both sides end cap and ensure stator and rotor The most important part of clearance evenness degree, thus optimization casing structure just seems particularly necessary with manufacturing process.

Existing cylindrical motor casing is mostly supported by following two modes：

1st, direct car goes out a columnar casing on seamless steel pipe base material, this preparation method exist waste raw material, The problems such as high cost, low production efficiency, and this method is not suitable for the large-scale motor case of making；

2nd, a Single Size Rectangular Blanks are directly disposably pressed into a columnar casing by round as a ball instrument, are eliminated with welding method There is low precision in seam, the cylindrical casing that this method is made, the problems such as stitching portion does not line up.

Utility model content

For the problem in background technology, the utility model provides a kind of motor case pressure circle equipment, including order sets The blanking die for being punched out Single Size Rectangular Blanks part put, the waveform for Single Size Rectangular Blanks to be pressed into middle recessed both sides projection The pre-bend mould of pre- comer pieces, for the pre- comer pieces of waveform is pressed into a cylindrical casing circular bending die have and for cylindrical shape machine The internal-and external diameter of shell carries out the shaping mold of integer；The blanking die, pre-bend mould, circular bending die tool and shaping mold are arranged in order It is arranged on a workbench.

It is preferred that the pre-bend mould is included：

First lower template, its upper end is fixed with first time raised mould of recessed both sides in the middle of；

First upper die plate, its lower end is fixed with mould, mould and institute on described first on first of convex both sides fovea superior under a centre First time mould is stated to match；

The Single Size Rectangular Blanks part is placed on first time mould, and first upper die plate to drive and be embossed in institute on described first State on the Single Size Rectangular Blanks part on first time mould.

It is preferred that the surrounding of first time mould is additionally provided with the first location-plate, first location-plate is used for placing The surrounding of the Single Size Rectangular Blanks part on first time mould is positioned.

It is preferred that the pre-bend mould also includes hold-down column and elastic construction, the elastic construction is arranged on described The lower section of one lower template, the lower end of the hold-down column is arranged on elastic construction, and the upper end of the hold-down column passes through described first Lower template and first time mould stretch out and withstand on the Single Size Rectangular Blanks part；Mould is descending on described first and pushes the Single Size Rectangular Blanks Part, it is descending that the hold-down column press against the elastic construction therewith.

It is preferred that the elastic construction is by upper rubber backing plate, lower rubber backing plate, and be arranged on the upper rubber backing plate and Compress rubber composition between lower rubber backing plate, the lower end of the hold-down column is fixedly connected with upper rubber backing plate.

It is preferred that being provided with the first guider, described first between first upper die plate and first lower template Guider includes the first guide pin bushing being arranged on first upper die plate and be arranged in first lower template first Guide pillar, the upper end of first guide pillar puts in first guide pin bushing and can be moved axially along first guide pin bushing.

It is preferred that the circular bending die tool is included：

Drag chamber fixed plate, its upper end is provided with model cavity, and drag chamber middle setting has deeper big Circular arc lower concave part, the both sides of the circular arc lower concave part are provided with shallower small arc lower concave part；

Upper mould fixed plate, its lower end is provided with a pressure cylinder, and the pressure cylinder matches with the orthodrome lower concave part, and The external diameter of the pressure cylinder is in the same size with the internal diameter of motor case；

The pre- comer pieces of waveform is placed on the drag chamber, and boss in the middle of the pre- comer pieces of the waveform in The top of the orthodrome lower concave part, the concave part of the pre- comer pieces both sides of waveform is in the small arc-shaped lower concave part；Institute Stating upper mould fixed plate drives the pressure cylinder to push, and the pressure cylinder heads on the pre- comer pieces of waveform and is pressed into the orthodrome lower concave part It is interior, the lower concave part of the pre- comer pieces both sides of waveform along symmetrical centre gradually on turn over and wrap pressure cylinder.

It is preferred that drag chamber front and back end is provided with the second location-plate, the location-plate be used to being opposite to it is described under The front and back end of the pre- comer pieces of waveform on model cavity is positioned.

It is preferred that one end of the pressure cylinder is fixed on the upper mould fixed plate by a cantilever；The pressure cylinder A supporting pin is coaxially arranged with other end end face, swinging mounting, the swinging mounting are additionally provided with the upper mould fixed plate One end may be rotatably mounted on the upper mould fixed plate, the other end is provided with a hook formation, and the swinging mounting is put down vertically Swung in face, the hook formation of its end is caught on the supporting pin.

It is preferred that being provided with the second guider, described second between the upper mould fixed plate and drag chamber fixed plate Guider includes the second guide pin bushing for being arranged on the upper mould fixed plate and is arranged in the fixed plate of the drag chamber Second guide pillar, the upper end of second guide pillar puts in second guide pin bushing and can be moved axially along second guide pin bushing.

It is preferred that the shaping mold is included：

Second lower template, is fixed with second time mould thereon, one is provided with the upper surface of the upper mould semicircle recessed Portion；

Second upper die plate, is fixed with mould on one second thereon, and a semicircle fovea superior is provided with the lower surface of the lower mould Portion；The semi-circular dips and the semicircle upper recess constitute a cylindrical structural consistent with motor case external diameter；

Plug, the cylindrical casing obtained by circular bending die tool is set on the plug, is cased with cylindrical shape machine The plug of shell is placed in the semicircle lower concave part, and second upper die plate drives mould on described second to push, under the semicircle Recess and the semicircle upper recess are pressed on the lateral wall of the cylindrical casing together.

It is preferred that after being embossed on described second on the cylindrical casing, mould lower surface and described on described second Gap is left between two times mould upper surfaces.

It is preferred that being provided with the 3rd guider, the described 3rd between second upper die plate and second lower template Guider includes the 3rd guide pin bushing being arranged on second upper die plate and the be arranged in second lower template the 3rd Guide pillar, the upper end of the 3rd guide pillar puts in the 3rd guide pin bushing and can be moved axially along the 3rd guide pin bushing.

The utility model is allowed to compared with prior art, have the following advantages that and accumulate due to using above technical scheme Pole effect：

The motor case pressure circle equipment that the utility model is provided, on the one hand relative in the prior art using seamless steel pipe car The cylinder casing being made, the utility model greatlys save raw material, reduces cost, and process simple, efficiency high；Other one Aspect, the utility model can be pressed sheet material by pre-bending, pressure circle, three steps of integer justifies into high-precision motor casing, Its pressure circle precision is higher, and stitching portion is alignd, and is less prone to deviation.Meanwhile, the utility model shows in motor production in enormous quantities Having revealed production cost and percent defective greatly reduces, improves the advantage of production efficiency and economic benefit.

Brief description of the drawings

With reference to accompanying drawing, by hereafter state detailed description, above-mentioned and other spy of the present utility model can be more clearly understood that Seek peace advantage, wherein：

Fig. 1 is the structural representation of Single Size Rectangular Blanks part in the utility model；

Fig. 2 is the dimensional structure diagram of the utility model medium wave shape wave pre-bending part；

Fig. 3 is the front view of the utility model medium wave shape wave pre-bending part；

Fig. 4 is the structural representation of cylindrical casing in the utility model；

Fig. 5 is the structural representation of pre-bend mould in the utility model；

Fig. 6 is the front view of circular bending die tool in the utility model；

Fig. 7 is the side view of circular bending die tool in the utility model；

Fig. 8 is the front view of shaping mold in the utility model；

Fig. 9 is the schematic diagram of casing depoling in the utility model.

Specific embodiment

Referring to the accompanying drawing for showing the utility model embodiment, the utility model is described in more detail.However, this reality Can in many different forms be realized with new, and should not be construed as and limited by the embodiment for herein proposing.Conversely, proposing These embodiments be in order to reach fully and complete disclosure, and make those skilled in the art understand completely this practicality newly The scope of type.In these accompanying drawings, for clarity, the size and relative size in layer and region are may be exaggerated.

The utility model provides a kind of motor case pressure circle equipment, including is set in sequence in the blanking die on a workbench Tool, pre-bend mould, circular bending die tool and shaping mold；Blanking die is used to be punched out Single Size Rectangular Blanks part；Pre-bend mould is used for square Shape blank is pressed into the raised pre- comer pieces of waveform in middle recessed both sides；Circular bending die has for the pre- comer pieces of waveform to be pressed into a cylinder Shape casing；Shaping mold is used to carry out integer to the internal-and external diameter of cylindrical casing, reaches inner hole precision requirement.

The utility model presses circle equipment to make columnar motor case by above-mentioned motor case, on the one hand relative to Cylinder casing is lathed using seamless steel pipe in the prior art, the utility model greatlys save raw material, reduces cost, and Processing is simple, efficiency high；Still further aspect, the utility model is pressed into a cylindrical shape by pre-bending, pressure circle, three steps of integer Motor case, its pressure circle precision is higher, and stitching portion is alignd, and is less prone to deviation.Meanwhile, the utility model in motor in high volume Production cost and percent defective have been shown in production greatly reduces, improves the advantage of production efficiency and economic benefit.

In the present embodiment, blanking die uses existing conventional blanking die, and it is a single die, and concrete structure is herein It is not limited, as long as place's Single Size Rectangular Blanks part casing can be punched；The Single Size Rectangular Blanks part 1 being directly punched out on blanking die, with electricity The length and width of the expansion part of machine casing are consistent；Further, at the two ends of Single Size Rectangular Blanks part 1 respectively punching convex hasp 101, recessed take Button 102, convex hasp 101 and recessed hasp 102 match, and after Single Size Rectangular Blanks part 1 is pressed into cylindrical shape, convex hasp 101 just falls Enter in recessed hasp 102, so that the two ends direct splicing of Single Size Rectangular Blanks part 1 is together, while ensure that the essence of stitching portion Degree, prevents the skew on the axial direction of stitching portion；Wherein, the convex hasp 101 in the two ends of Single Size Rectangular Blanks part 1, recessed hasp 102 set number can root It is adjusted according to concrete condition, it is not limited to shown in Fig. 1.

Certainly, in other embodiments, the two ends of Single Size Rectangular Blanks part 1 can not also be punched out convex hasp 101, recessed hasp 102, After the pressure circle of Single Size Rectangular Blanks part 1, stitching portion is welded directly together, and this implementation method is also in protection domain of the present utility model It is interior.

The pre-bend mould in motor case pressure circle equipment, circular bending die tool, shaping mold are explained below：

First, pre-bend mould

In the present embodiment, Single Size Rectangular Blanks part 1 is pressed into the pre- comer pieces of waveform as shown in figures 2-3 in pre-bend mould 2, the pre- comer pieces 2 of the waveform includes intermediate projections portion 201 and is symmetricly set on the lower concave part 202 of the both sides of lug boss 201, lug boss 201st, lower concave part 202 is axially disposed circular groove structure, wherein ensureing the close electricity of arc radius of lower concave part 202 The radius of machine casing.

In the present embodiment, with reference to shown in 5, pre-bend mould includes the first lower template 404, first time mould 409, first Mould 408 on upper die plate 413, first.Specifically, the lower end of the first lower template 404 is provided with fixed feet 401, it is pre- for supporting Bending mould；First time mould 409 is fixed on the upper surface of the first lower template 404 by structures such as screws, first time mould 409 it is upper End face is in the raised shape in the recessed both sides in centre with the pre- shape of comer pieces 2 of waveform always；First upper die plate 413 is located under first The surface of template 404, mould 408 is fixed on the lower surface of the first upper die plate 413 by structures such as screws 410 on first, the Mould 408 is relative with first time mould 409 on one, and on first mould 408 towards on first time lower surface of mould 409 under centre convex two The shape of side fovea superior, mould 408 matches with first time mould 409 on first.

Single Size Rectangular Blanks part 1 is placed on first time mould 409, the first upper die plate 413 drives that mould 408 on first is descending to be pressed in the Once on the Single Size Rectangular Blanks part 1 on mould 409, Single Size Rectangular Blanks part 1 is pressed into institute in Fig. 2-3 by mould 408 and first time mould 409 on first The pre- comer pieces 2 of waveform shown.

Wherein, the first guider is provided between the first upper die plate 413 and the first lower template 404, for ensureing first Upper die plate 413 is descending vertically relative to the first lower template 404；First guider is included and is arranged on the first upper die plate 413 The first guide pin bushing 412 and the first guide pillar 411 being arranged in the first lower template 404, the upper end of the first guide pillar 411 puts in first and leads Set 412 is interior and can be moved axially along the first guide pin bushing 412.

Wherein, the surrounding of first time mould 409 is additionally provided with the first location-plate, and the first location-plate is used for being placed under first The surrounding of the Single Size Rectangular Blanks part 1 on mould 409 is positioned, and prevents the Single Size Rectangular Blanks part 1 during pushing from shifting, so as to protect Lug boss, the lower concave part in the pre- comer pieces of waveform that card is pressed into are on the width along Single Size Rectangular Blanks part 1, i.e., to be all Along this its axial direction, so as to advantageously ensure that the high accuracy of the motor case obtained by follow-up pressure circle.Specifically, Single Size Rectangular Blanks part 1 Left and right sides be respectively arranged with the first location-plate 405, front and back end is respectively arranged with the first location-plate 407；Wherein, Single Size Rectangular Blanks part Between 1 and the first location-plate 407 of front and back end all the time in gap coordinate, so as to effectively prevent blank in pre-bending process In the dislocation and distortion that are likely to occur.

Wherein, pre-bend mould also includes hold-down column 406 and elastic construction, and elastic construction is arranged on the first lower template 404 Lower section, the lower end of hold-down column 406 is arranged on elastic construction, and the upper end of hold-down column 406 passes through the first lower template 404 and first Lower mould 409 stretches out and withstands on Single Size Rectangular Blanks part 1；Mould 408 is descending on first and when pushing Single Size Rectangular Blanks part 1, hold-down column 406 is therewith Press against elastic construction descending.Because, Single Size Rectangular Blanks part is during being pressed, the work of the first location-plate 405 of its left and right sides With fading away, now by hold-down column 406 in the presence of elastic construction screen resilience so that Single Size Rectangular Blanks part is in quilt all the time Impaction state, ensures that Single Size Rectangular Blanks part 1 will not be shifted over phenomenon during pre-bending.

Further, elastic construction is by upper rubber backing plate, lower rubber backing plate 402, and be arranged on rubber backing plate and under Compress rubber 403 between rubber backing plate is constituted, and the lower end of hold-down column 406 is fixedly connected with upper rubber backing plate.Certainly, at other The form of elastic construction is not limited to the above in embodiment, also can be using structures such as springs；The utility model uses face The larger rubber of product non-usage spring as elastic construction, can to greatest extent save axial space and (reduce fixed feet 401 height).

2nd, circular bending die tool

In the present embodiment, by the pre- comer pieces of the waveform that pre-bend mould is pressed again by obtaining such as Fig. 4 after circular bending die tool Shown in cylindrical casing 3, the size of the cylindrical casing 3 is consistent with the size of target motor casing.

In the present embodiment, with reference to 6-7, circular bending die tool includes drag chamber fixed plate 508, drag chamber 510, upper mould Fixed plate 513, pressure cylinder 504.Specifically, the lower end of drag chamber fixed plate 508 is provided with fixed feet 507, for supporting Circular bending die has.Drag chamber 510 is fixed on the upper surface of drag chamber fixed plate 508 by structures such as screws, drag chamber The both sides that 510 middle settings have deeper orthodrome lower concave part, circular arc lower concave part are provided with shallower small arc lower concave part；Upper mould Fixed plate 513 is located at the surface of drag chamber fixed plate 508, and pressure cylinder 504 is fixed on the lower surface of upper mould fixed plate 513 On, pressure cylinder 504 is relative with the orthodrome lower concave part in the middle of drag chamber 510, presses cylinder 504 and orthodrome lower concave part phase Match somebody with somebody, and the external diameter of pressure cylinder is in the same size with the internal diameter of the motor case for needing to be made.

The pre- comer pieces 2 of waveform is placed on drag chamber 510, and the lug boss 201 of the pre- centre of comer pieces 2 of waveform is located at great circle The top of arc lower concave part, the lower concave part 202 of the pre- both sides of comer pieces 2 of waveform is located in small arc-shaped lower concave part；The band of upper mould fixed plate 513 Dynamic pressure cylinder 504 is pushed, and pressure cylinder 504 heads on the pre- comer pieces 2 of waveform and is pressed into orthodrome lower concave part, the pre- comer pieces both sides of waveform Lower concave part along the symmetrical centre central shaft of cylinder (press) gradually on turn over and wrap pressure cylinder 504；When pressure cylinder 504 is pressed During to bottom, convex hasp is accurately fallen into corresponding recessed hasp.

Wherein, the second guider is provided between upper mould fixed plate 513 and drag chamber fixed plate 508, for ensureing Upper mould fixed plate 513 is descending vertically relative to drag chamber fixed plate 508；Second guider includes and is arranged on mould and fixes The second guide pin bushing 514 and the second guide pillar 512 being arranged in drag chamber fixed plate 508 on plate 513, the second guide pillar 512 it is upper End puts in the second guide pin bushing 514 and can be moved axially along the second guide pin bushing 514.

Wherein, the front and back end of drag chamber 510 is provided with the second location-plate, and location-plate is used to be opposite to drag chamber 510 The front and back end of the pre- comer pieces of waveform positioned.Specifically, being provided with one second positioning on the left of the front end of drag chamber 510 Plate, the rear end centre in drag chamber 510 and right side are provided with one second location-plate 511,509.In the rear end in drag chamber 510 Between the second location-plate 511 upper end arc profile less than cylindrical casing internal bore profile line, from without influence pressure cylinder 504 Bottom can normally be pressed to.

Wherein, one end of pressure cylinder 504 is fixed on upper mould fixed plate 513 by a cantilever 505；The one of pressure cylinder 504 End (i.e. the left end of cylinder 504 is pressed in Fig. 7) stepped transverse direction is vertically fixed on cantilever 505, and cantilever 505 passes through screw 506 It is fixed on the lower surface of upper mould fixed plate 513；The left side of pressure cylinder 504 is set into a ladder, enhances its rigidity.Pressure cylinder A supporting pin 502 is coaxially arranged with 504 other end end face, swinging mounting 503 is additionally provided with upper mould fixed plate 513, put One end of dynamic support 503 may be rotatably mounted on upper mould fixed plate 513 by stop screw 501, and it is hook-shaped that the other end is provided with one Swung in structure, the perpendicular of swinging mounting 503, the hook formation of its end is caught on supporting pin 502.Pressure cylinder 504 is pushed During, by the common support of cantilever 505 and swinging mounting 503, stress during work is converted into freely-supported by cantilever beam Beam, fundamentally ensure that pressure cylinder 504 still ensures that depth of parallelism index in working order with drag chamber 510；Pressure circle is completed, Upper mould fixed plate upper body, rotates the family 503 of swing, and cylindrical casing is removed from pressure cylinder 504.

3rd, shaping mold

By the cylindrical casing that pre-bend mould and circular bending die tool are obtained, axial dimension is preferable, but inside and outside round size remains unchanged Can there is oval error (0.1mm), thus the utility model by shaping mold as last one of finishing procedure, so as to obtain Obtain high-precision motor case.

Reference picture 8, shaping mold is included on the second lower template 601, second time mould 603, the second upper die plate 610, second Mould 605, plug 604.Specifically, the lower end of the second lower template 601 is provided with fixed feet 608, for supporting shaping mold；The Two times moulds 603 are fixed on the upper surface of the second lower template 601 by structures such as screws, are set on second time upper surface of mould 603 It is equipped with a semi-circular dips；Second upper die plate 610 is located at the surface of the second lower template 601, and mould 605 passes through screw on second The structures such as 606 are fixed on the lower surface of the second upper die plate 610, and mould 605 is relative with second time mould 603 on second, and on second Mould 605 is towards being provided with a semicircle upper recess on second time lower surface of mould 603；Semi-circular dips and semicircle upper recess The radius and motor of composition one cylindrical structural consistent with motor case external diameter, i.e. semi-circular dips and semicircle upper recess The external diameter of casing is consistent；Meanwhile, the external diameter of plug 604 is consistent with the internal diameter of motor case.

The cylindrical casing obtained by circular bending die tool is set on plug 604, the plug 604 of cylindrical casing is cased with It is placed in semicircle lower concave part, the second upper die plate 610 drives mould 605 on second to push, semi-circular dips and semicircle upper recess It is pressed in together on the lateral wall of cylindrical casing 3.Because casing causes inside and outside footpath by being remained after circular bending die tool in a small amount of resilience Size fail it is up to standard, by the utility model provide shaping mold just can be easily up to standard.Meanwhile, after extruding shaping mold pressure Casing obtain the effect of flow harden, so both increased the case hardness of casing, make casing inside/outside diameter size up to standard again After obtain stabilization.

After the completion of integer, the casing product for being enclosed with plug 604 is removed, and unload its vertical display is shown in fig .9 On barrel 611, ejected on aerostatic press.

Wherein, the 3rd guider is provided between the second upper die plate 610 and the second lower template 601, for ensureing second Upper die plate 610 is descending vertically relative to the second lower template 601；3rd guider is included and is arranged on the second upper die plate 610 The 3rd guide pin bushing 602 and the 3rd guide pillar 609 being arranged in the second lower template 601, the upper end of the 3rd guide pillar 609 puts in the 3rd and leads Set 602 is interior and can be moved axially along the 3rd guide pin bushing 602.

Wherein, after mould 605 is pressed on cylindrical casing 3 on second, on second on the lower surface of mould 605 and second time mould 603 Gap is left between end face.Specifically, 0.125mm is respectively ground off at mould 605 and second time composition surface of mould 603 on second, so Just the spacing amount of finishing of 0.25mm is obtained, so that it is guaranteed that casing dimension overproof and excessive plasticity will not occur because stress is excessive Deformation.

Wherein, through hole is offered on the axis of plug 604, being disposed to of through hole reduces labor intensity.

Those skilled in the art should be understood that the utility model can be realized without de- with many other concrete forms From the spirit or scope of itself.Although having been described for case study on implementation of the present utility model, it should be understood that the utility model should not be limited Be made as these embodiments, spirit of the present utility model that those skilled in the art can define such as appended claims and Within the scope of make and changing and modifications.

Claims (13)

1. a kind of motor case pressure circle is equipped, it is characterised in that including order setting for being punched out falling for Single Size Rectangular Blanks part Material mould, the pre-bend mould for Single Size Rectangular Blanks to be pressed into the raised pre- comer pieces of waveform in middle recessed both sides, for by wave The pre- comer pieces of shape is pressed into the circular bending die tool of a cylindrical casing and the integer mould of integer is carried out for the internal-and external diameter to cylindrical casing Tool；The blanking die, pre-bend mould, circular bending die tool and shaping mold are arranged in order and are arranged on a workbench.

2. motor case pressure circle according to claim 1 is equipped, it is characterised in that the pre-bend mould is included：

First lower template, its upper end is fixed with first time raised mould of recessed both sides in the middle of；

First upper die plate, its lower end is fixed with mould, mould and described on described first on first of convex both sides fovea superior under a centre Once mould matches；

The Single Size Rectangular Blanks part is placed on first time mould, and first upper die plate drives and be embossed on described first described the Once on the Single Size Rectangular Blanks part on mould.

3. motor case pressure circle according to claim 2 is equipped, it is characterised in that the surrounding of first time mould also sets up There is the first location-plate, the surrounding that first location-plate is used for the Single Size Rectangular Blanks part to being placed on first time mould is determined Position.

4. motor case pressure circle according to claim 2 is equipped, it is characterised in that the pre-bend mould also includes compression Post and elastic construction, the elastic construction are arranged on the lower section of first lower template, and the lower end of the hold-down column is arranged on bullet Property structure on, the upper end of the hold-down column is stretched out and withstands on the Single Size Rectangular Blanks part through first lower template and first time mould On；Mould is descending on described first and pushes the Single Size Rectangular Blanks part, and it is descending that the hold-down column press against the elastic construction therewith.

5. motor case pressure circle according to claim 4 is equipped, it is characterised in that the elastic construction is by upper valve rubber Plate, lower rubber backing plate, and it is arranged on the compress rubber composition between the upper rubber backing plate and lower rubber backing plate, the compression The lower end of post is fixedly connected with upper rubber backing plate.

6. motor case pressure circle according to claim 2 is equipped, it is characterised in that first upper die plate and described first The first guider is provided between lower template, first guider includes be arranged on first upper die plate One guide pin bushing and the first guide pillar being arranged in first lower template, the upper end of first guide pillar is put in first guide pin bushing And can be moved axially along first guide pin bushing.

7. motor case pressure circle according to claim 1 is equipped, it is characterised in that the circular bending die tool is included：

Drag chamber fixed plate, its upper end is provided with model cavity, and drag chamber middle setting has deeper orthodrome Lower concave part, the both sides of the circular arc lower concave part are provided with shallower small arc lower concave part；

Upper mould fixed plate, its lower end is provided with a pressure cylinder, and the pressure cylinder matches with the orthodrome lower concave part, and described Press the external diameter of cylinder in the same size with the internal diameter of motor case；

The pre- comer pieces of waveform is placed on the drag chamber, and boss in the middle of the pre- comer pieces of the waveform is in described The top of orthodrome lower concave part, the concave part of the pre- comer pieces both sides of waveform is in the small arc-shaped lower concave part；On described Mould fixed plate drives the pressure cylinder to push, and the pressure cylinder heads on the pre- comer pieces of waveform and is pressed into the orthodrome lower concave part, The lower concave part of the pre- comer pieces both sides of waveform along symmetrical centre gradually on turn over and wrap pressure cylinder.

8. motor case pressure circle according to claim 7 is equipped, it is characterised in that drag chamber front and back end is provided with Second location-plate, the front and back end that the location-plate is used for the pre- comer pieces of waveform being opposite on the drag chamber is positioned.

9. motor case pressure circle according to claim 7 is equipped, it is characterised in that one end of the pressure cylinder hangs by one Arm is fixed on the upper mould fixed plate；A supporting pin, the upper mould are coaxially arranged with the other end end face of the pressure cylinder Swinging mounting is additionally provided with fixed plate, one end of the swinging mounting may be rotatably mounted on the upper mould fixed plate, another End is provided with a hook formation, the swinging mounting perpendicular and swings, and the hook formation of its end is caught on the support Pin.

10. motor case pressure circle according to claim 7 is equipped, it is characterised in that the upper mould fixed plate and drag The second guider is provided between the fixed plate of chamber, second guider is included and is arranged on the upper mould fixed plate Second guide pin bushing and the second guide pillar being arranged in the fixed plate of the drag chamber, the upper end of second guide pillar puts in described second Guide pin bushing is interior and can be moved axially along second guide pin bushing.

11. motor case pressure circle equipments according to claim 1, it is characterised in that the shaping mold is included：

Second lower template, is fixed with second time mould thereon, and a semi-circular dips are provided with the upper surface of the upper mould；

Second upper die plate, is fixed with mould on one second thereon, and a semicircle upper recess is provided with the lower surface of the lower mould；Institute State semi-circular dips and the semicircle upper recess constitutes a cylindrical structural consistent with motor case external diameter；

Plug, the cylindrical casing obtained by circular bending die tool is set on the plug, is cased with cylindrical casing Plug is placed in the semicircle lower concave part, and second upper die plate drives mould on described second to push, the semi-circular dips It is pressed in together on the lateral wall of the cylindrical casing with the semicircle upper recess.

12. motor case pressure circle equipments according to claim 11, it is characterised in that the circle is embossed on described second After on cylindrical chassis, gap is left between mould lower surface and second time mould upper surface on described second.

13. motor cases according to claim 11 pressure circle equipments, it is characterised in that second upper die plate and described the The 3rd guider is provided between two lower templates, the 3rd guider is included and is arranged on second upper die plate 3rd guide pin bushing and the 3rd guide pillar being arranged in second lower template, the upper end of the 3rd guide pillar puts in the 3rd guide pin bushing It is interior and can be moved axially along the 3rd guide pin bushing.