CN215546500U

CN215546500U - Press fit jig

Info

Publication number: CN215546500U
Application number: CN202121565066.7U
Authority: CN
Inventors: 聂鹏举; 凌豪杰; 王伟; 殷鹏冬; 蒙亚倪
Original assignee: Shenzhen Kelier Industrial Automation Control Technology Co ltd
Current assignee: Shenzhen Kelier Industrial Automation Control Technology Co ltd
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2022-01-18
Anticipated expiration: 2031-07-08

Abstract

The utility model provides a pressing jig which is used for pressing an inner iron core into an outer iron core and is characterized by comprising a base, a supporting plate vertically arranged on the base, a clamping assembly fixed on the base and used for fixing the outer iron core, a pressure head assembly arranged on the supporting plate and used for pressing the inner iron core into the outer iron core, and a driving assembly arranged in the base and used for driving the pressure head assembly. The press fitting jig provided by the utility model can be used for press fitting of the inner and outer iron cores of the stators and rotors of various types of motors, can ensure the assembly precision, has a simple and compact structure, is convenient to maintain, improves the traditional inner and outer iron core mounting process, saves the assembly time, improves the working efficiency, reduces the assembly cost, and ensures the safety during manual operation.

Description

Press fit jig

Technical Field

The utility model belongs to the technical field of motor processing, and particularly relates to a pressing jig.

Background

The iron cores of the rotor and the stator of the motor are divided into an outer iron core and an inner iron core. At present the assembly of the outer iron core and interior iron core of rotor and stator to the motor is the outer iron core after the interior iron core directly is put into the manual work usually, then assemble with the manual press, but artifical pressure equipment is consuming time longer, the assembly efficiency is low, the pressure equipment is hard to be operated by skilled hands usually, and to being equipped with certain required precision, and be difficult to keep the precision, manual work damages the part easily or causes personnel to be injured, and the ubiquitous in the installation because the inaccurate and impaired condition of part that leads to the fact in inside and outside iron core location, by operation workman's assembly technique and experience, can't guarantee the coincidence problem of interior iron core and outer iron core axis at all.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects that in the existing assembly process of the inner and outer iron cores of the stator and the rotor of the motor, the assembly efficiency is low through manual operation, the precision is difficult to maintain, and the potential safety hazard is great in the actual operation process, and provides a pressing jig.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a press fit jig, includes the base be the backup pad of vertical setting on the base, be fixed in be used for fixing on the base the clamping subassembly of outer iron core, set up in be used for in the backup pad with interior iron core is impressed outside inside pressure head subassembly of iron core and set up in be used for the drive in the base the drive assembly of pressure head subassembly.

Furthermore, the clamping assembly comprises a first support frame fixed on the base and a guide block arranged on the first support frame and used for fixing the outer iron core.

Furthermore, the clamping assembly further comprises a pair of clamping parts which are arranged on the first support frame and located on two sides of the guide block and used for clamping the outer iron core.

Specifically, the clamping part comprises a second support frame fixed on the first support frame, a clamping jaw arranged on the second support frame and a driving cylinder driving the clamping jaw to move towards the outer iron core.

Specifically, the clamping part further comprises a positioning column arranged on the clamping jaw.

Furthermore, the clamping assembly further comprises a guide post arranged between the first support frame and the second support frame, and a spring is sleeved on the guide post.

Further, the driving assembly comprises a screw rod guide rail assembly arranged on the supporting plate and a driving motor for driving the screw rod guide rail assembly.

Specifically, the screw rod guide rail assembly comprises a screw rod, two guide rails and a sliding block, wherein the screw rod is arranged on the supporting plate and driven by the driving motor to rotate, the two guide rails are fixed on the supporting plate and are respectively positioned on two sides of the screw rod, and the sliding block is arranged between the screw rod and the guide rails.

Further, the pressure head assembly comprises a connecting assembly fixed on the sliding block and a pressure head fixed on the connecting assembly and positioned above the guide block.

Specifically, the connecting assembly comprises a connecting plate fixed on the sliding block, a third supporting frame vertically arranged on the connecting plate and a pressure head plate fixed below the third supporting frame, and the pressure head is fixed below the pressure head plate.

The press-fit jig provided by the utility model has the beneficial effects that: the assembling machine can be used for assembling the inner and outer iron cores of various types of motor stators and rotors, is safe in assembling operation process, can guarantee assembling precision, is simple and compact in structure, simplifies the mounting process of the inner and outer iron cores of the motor stators and rotors, saves assembling time, improves working efficiency, reduces assembling cost, and guarantees safety during manual operation.

Drawings

Fig. 1 is a front view of a three-dimensional structure of a pressing jig provided by the present invention;

fig. 2 is a side view of a three-dimensional structure of a pressing jig according to the present invention;

in the figure: 100-pressing jig,

10-base, 20-supporting plate, 30-clamping component, 31-first supporting frame, 32-guide block,

33-clamping part, 331-second support frame, 332-driving cylinder, 333-clamping jaw,

334-positioning column, 34-guiding column, 341-spring, 40-pressure head component, 41-connecting plate,

40-pressure head component, 41-pressure head, 42-connecting component, 421-third supporting frame,

422-connecting plate, 423-pressure head plate, 43-supporting column, 50-driving component,

51-driving motor, 52-screw rod guide rail component, 521-guide rail, 522-slide block,

523-lead screw.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1-2, a pressing fixture 100 according to the present invention is shown. The pressing fixture 100 can be used for pressing inner and outer iron cores of various types of motor stators and rotors. As shown in fig. 1, the pressing fixture 100 includes a base 10, a support plate 20 vertically disposed on the base 10, a clamping assembly 30 fixed on the base 10 for fixing the outer core, a pressing head assembly 40 disposed on the support plate 20 for pressing the inner core into the outer core, and a driving assembly 50 disposed in the base 10 for driving the pressing head assembly 40. The iron core of the motor stator and rotor comprises an inner iron core and an outer iron core, when the outer iron core and the inner iron core of the motor stator and rotor need to be pressed, the outer iron core is firstly fixed in the clamping assembly 30, and then the inner iron core is placed above the outer iron core fixed in the clamping assembly 30. Then, the ram assembly 40 is driven by the driving assembly 50 to be vertically lowered on the support plate 20 to the chuck assembly 30, so that the ram assembly 40 abuts against the upper end surface of the inner core placed above the outer core in the chuck assembly 30. The drive assembly 50 then continues to drive the chuck assembly 40 until the inner core is fully pressed into the outer core secured in the clamping assembly 30. Then, the driving assembly 50 drives the ram assembly 40 to vertically ascend on the support plate 20 so that the ram assembly 40 is separated from the upper end surface of the inner core, and continuously drives the ram assembly 40 to vertically ascend to an initial position, and then releases the fixing state of the chucking assembly 30 with the assembled core. Finally, the assembled iron core is disassembled from the clamping assembly 30, and the press mounting work of the inner iron core and the outer iron core of the stator and the rotor of the motor is completed. The press fitting jig 100 can press fit inner and outer iron cores of stators and rotors of various motors including but not limited to servo motors, three-phase motors and the like.

Further, as shown in fig. 1, the clamping assembly 30 of the jig 100 provided by the present invention includes a first supporting frame 31 fixed on the base 10 and a guiding block 32 disposed on the first supporting frame 31 for fixing the outer core. Before the inner and outer iron cores of the stator and the rotor are pressed, the outer iron core is firstly put into a guide block 32 arranged on a first support frame 31, and an annular limiting boss is arranged on the inner surface of the guide block 32 and can form guiding fit with an annular groove on the outer surface of the outer iron core. Through the guide fit between the annular limiting boss on the inner surface of the guide block 32 and the annular groove on the outer surface of the outer iron core, the positioning precision of the outer iron core is improved, and meanwhile, the outer iron core is limited, so that the relative displacement of the outer iron core in the process of pressing the inner iron core into the outer iron core is prevented from affecting the press-fitting precision. The first support frame 31 includes a vertical support plate vertically disposed on the base 10 and a horizontal support plate disposed on the vertical support plate, and the guide block 32 is fixed on the horizontal support plate. The vertical support plate enables a certain space to be formed between the guide block 32 fixed on the horizontal support plate and the base 10, and avoids the instant impact force generated when the bottom end of the iron core pressed in the guide block 32 is in direct contact with the base 10 after the inner iron core is pressed in the outer iron core from influencing the pressing precision and causing the damage of components of the pressing jig 100.

Further, as shown in fig. 1, the clamping assembly 30 further includes a pair of clamping portions 33 disposed on the first support frame 31 and located at two sides of the guide block 32 for clamping the outer core. The outer iron core is placed in the guide block 32 on the first support frame 31, then the inner iron core is placed above the outer iron core, and at the moment, the pair of clamping portions 33 located on two sides of the guide block 32 respectively move towards the outer iron core on the base 10 in a relatively horizontal mode, so that the clamping portions 33 clamp the joint portion of the outer iron core and the inner iron core, and therefore double repositioning of the outer iron core and positioning and installation operation of the inner iron core are achieved. The driving assembly 50 drives the press head assembly 40 to vertically descend on the support plate 20 to press the inner core into the outer core, and when the annular boss of the upper end of the inner core abuts against the upper surface of the clamping portion 33, the pair of clamping portions 33 located at both sides of the guide block 32 relatively horizontally move on the base 10 toward the initial position, respectively, so that the clamping portions 33 loosen the inner core and the outer core and restore to the initial positions. The driving assembly 50 drives the press head assembly 40 to continuously and vertically descend to completely press the inner iron core into the outer iron core, so that interference of the clamping part 33 in the process of pressing the inner iron core into the outer iron core by the press head assembly 40 is effectively prevented, and press fitting precision is influenced.

Specifically, as shown in fig. 1, the clamping portion 33 includes a second support frame 331 fixed to the first support frame 31, a clamping jaw 333 provided on the second support frame 331, and a driving cylinder 332 driving the clamping jaw 333 to move toward the outer core. The outer iron core is placed in the guide block 32 on the first support frame 31, then the inner iron core is placed above the outer iron core, the driving air cylinders 332 on the second support frames 331 located on two sides of the guide block 32 drive the clamping jaws 333 towards the direction of the outer iron core at the moment, so that the clamping jaws 333 clamp the joint part of the outer iron core and the inner iron core, double positioning of the outer iron core is realized through clamping of the guide block 32 and the driving clamping jaws, and a circular ring part formed by clamping of the pair of clamping jaws 333 can be used as a positioning reference of the inner iron core. The driving assembly 50 drives the press head assembly 40 to vertically descend on the support plate 20 to press the inner iron core into the outer iron core, and when the annular boss at the upper end of the inner iron core abuts against the upper surfaces of the clamping jaws 333, the driving cylinders 332 on the second support frames 331 at both sides of the guide block 32 drive the clamping jaws 333 to horizontally move rightwards on the base 10, so that the clamping jaws 333 loosen the inner iron core and the outer iron core and restore to the original positions. The driving assembly 50 drives the press head assembly 40 to continuously and vertically descend to completely press the inner iron core into the outer iron core, so that the clamping jaws 333 are effectively prevented from interfering in the process of pressing the inner iron core into the outer iron core by the press head assembly 40 to influence the press-fitting precision.

Specifically, as shown in fig. 1, the clamping portion 33 further includes a positioning post 334 disposed on the clamping jaw 333. The positioning posts 334 are disposed in the clamping jaws 333 in a horizontal state, and when the driving cylinders 332 disposed on the second supporting frames 331 at two sides of the guiding block 32 drive the clamping jaws 333 to move toward the outer core and drive the clamping jaws 333 to move horizontally to the original position, the positioning posts 334 disposed in the clamping jaws 333 can form a good guiding function, so as to prevent the action trajectory of the driving cylinders 332 driving the clamping jaws 333 to move horizontally on the base 10 from deviating to affect the positioning accuracy of the clamping jaws 333 when clamping the outer core. Moreover, the positioning posts 334 of the clamping jaws 333 on both sides of the guide block 32 are coaxially arranged, so that the concentricity between the positioning posts 334 is ensured. Because the driving cylinder 332 drives the clamping jaw 333 to move horizontally on the base 10, the concentricity of the clamping jaw 333 during horizontal movement on the base 10 can be well ensured by coaxially arranging the positioning columns 334 in the clamping jaw 333 on the two sides of the guide block 32, and the concentricity and the positioning accuracy of the clamping jaw 333 during clamping an outer iron core are further ensured.

Further, as shown in fig. 1, the clamping assembly 30 further includes a guide post 34 disposed between the first support frame 31 and the second support frame 331, and a spring 341 is sleeved on the guide post 34. The upper end of the guide post 34 is movably connected with the second support frame 331 and the guide post 34 through a connection mode of a linear bearing, the linear bearing is assembled on the second support frame 331 through the guide post 34 in a guiding mode, and the linear bearing is matched with the guide post 34 in a guiding mode, so that the positioning accuracy of the second support frame 331 is guaranteed. Two sides of the guide block 32 are symmetrically distributed with two guide posts 34, and the heights of the second support frames 331 fixed on the guide posts 34 are the same, so that the heights of the driving cylinder 332 arranged on the second support frames 331 and the clamping jaws 333 driven by the driving cylinder 332 are the same, and the positioning accuracy of the driving cylinder 332 for driving the clamping jaws 333 to horizontally move on the base 10 for clamping the outer iron core is further improved. The spring 341 sleeved on the guiding column 34 makes the second supporting frame 331 and the horizontal supporting plate 312 in the first supporting frame 31 elastically connected and form a certain buffering space. When the driving assembly 50 drives the press head assembly 40 to vertically descend on the support plate 20 to press the inner iron core into the outer iron core, the spring 341 sleeved on the guide post 34 can effectively counteract the instant impact force generated when the annular boss at the upper end of the inner iron core is abutted against the upper end surface of the clamping jaw 333, so as to avoid the damage of components caused by the instant impact force when the rigid connection between the second support frame 331 and the horizontal support plate in the first support frame 31 is subjected to.

Further, as shown in fig. 2, the driving assembly 50 includes a lead screw rail assembly 52 provided on the support plate 20 and a driving motor 51 driving the lead screw rail assembly 52. After the fixing, positioning and mounting operations of the outer core and the inner core are completed, the driving motor 51 in the driving assembly 50 continuously drives the ram assembly 40 to vertically descend on the support plate 20 along the direction in which the lead screw guide rail assembly 52 is arranged, so as to completely press the inner core into the outer core in the clamping assembly 30. After the press-fitting operation of the outer core and the inner core is completed, the ram assembly 40 is continuously driven by the driving motor 51 of the driving assembly 50 to vertically ascend on the support plate 20 in a direction in which the lead screw rail assembly 52 is disposed to an original position. In the process that driving motor 51 continuously drives pressure head assembly 40 and goes up and down vertically on support plate 20, the vertical lift direction of injecing pressure head assembly 40 that lead screw guide rail assembly 52 can be fine ensures that the in-process that pressure head assembly 40 goes up and down on support plate 20 moves along the direction that lead screw guide rail assembly 52 set up all the time to form good guide effect, thereby avoid pressure head assembly 40 to go up and down the in-process action orbit in support plate 20 and take place the pressure equipment precision when squinting thereby influence pressure head assembly 40 and impressing interior iron core into outer iron core.

Specifically, as shown in fig. 2, the lead screw rail assembly 52 includes a lead screw 523 disposed on the support plate 20 and driven by the driving motor 51 to rotate, two rails 521 fixed on the support plate 20 and respectively located at two sides of the lead screw, and a slider 522 disposed between the lead screw 523 and the rails 521. The sliding block 522 is fixedly connected with a screw 523 in the screw guide rail assembly 52 through a nut seat and is fastened on the screw 523 through a nut, and rollers matched with guide rails 521 arranged on two sides of the screw 523 are respectively arranged at two ends of the bottom of the sliding block 522. The screw 412 also includes the bearing frame that sets up in backup pad 20 both ends, when connecting the driving motor drive screw 523 on screw 523 and rotating, the slider 522 that is fixed in on the screw 523 is at the vertical lift of backup pad 20 to set up in slider 522 bottom both sides and imbed the gyro wheel in the guide rail 522 in the lead screw guide rail subassembly 52 butt guide rail 522 inner wall all the time, make slider 522 along the vertical lift on backup pad 20 of the direction that lead screw guide rail subassembly 522 set up all the time, in order to form good guide effect, improve the assembly precision.

Further, as shown in fig. 2, the ram assembly 40 includes a connecting assembly 42 fixed to the sliding block 522 and a ram 41 fixed to the connecting assembly 42 and positioned above the guide block 32. The connecting assembly 42 is fixedly connected with the slider 522, the driving motor 51 drives the screw rod 523 to drive the slider 522 to vertically descend on the support plate 20 along the direction of the screw rod guide rail assembly 52, the connecting assembly 42 fixed on the slider 522 drives the pressing head 41 fixed below the connecting assembly 42 to vertically descend on the support plate 20, when the lower end part of the pressing head 41 is abutted to the upper end of the inner iron core fixed above the outer iron core, the driving motor 51 continuously drives the screw rod 523, so that the connecting assembly 42 fixed on the slider 522 drives the pressing head 41 fixed below the connecting assembly 42 to press the inner iron core into the outer iron core. When the annular boss of the upper end portion of the inner core abuts against the upper end portion of the outer core, the pressing head 41 stops pressing down. Subsequently, the driving motor 51 drives the screw 523 to drive the slider 522 to vertically ascend on the support plate 20 along the direction in which the screw guide rail assembly 52 is disposed, and the connecting assembly 42 fixed on the slider 522 drives the pressing head 41 fixed below the connecting assembly 42 to return to the original position. The ram 41 is arranged coaxially with the guide block 32, ensuring concentricity therebetween. Because driving motor 51 drives coupling assembling 42 and drives pressure head 41 and go up and down on support frame 20 vertically, through the concentricity when pressure head 41 goes up and down on backup pad 20 vertical assurance pressure head 41 that coaxial setting between guide block 32 and pressure head 41 can be fine, and then the concentricity and the pressure equipment precision when having guaranteed that pressure head 41 impresses the outer iron core that is fixed in guide block 32 in with the interior iron core.

Specifically, as shown in fig. 2, the connection assembly 42 includes a connection plate 422 fixed to the slider 522, a third support 421 vertically disposed on the connection plate 422, and a head plate 423 fixed below the third support 421, and the pressure head 41 is fixed below the head plate 423. The connecting plate 422 and the supporting plate 20 are horizontally disposed, the third supporting frame 421 is fixedly connected to the sliding block 522 through the connecting plate 422, and the third supporting frame 421 is vertically disposed at the upper end of the connecting plate 422. The connecting plate 422 can drive the third supporting frame 421 and the pressing head 41 in the pressing head plate 423 fixed below the third supporting frame 421 to vertically lift on the supporting plate 20 through the sliding block 522 along the direction in which the lead screw guide rail assembly 52 is arranged. Four corner positions between the third support frame and the head plate 423 are respectively provided with four support columns 43, and the four support columns 43 enable the third support frame 421 and the head plate 423 to form a certain space, so that the pressing head fixed below the head plate 423 is prevented from being abutted to the upper surface of the inner iron core and from influencing the pressing precision and damaging components of the pressing jig 100 due to the instant impact force generated after the inner iron core is completely pressed into the outer iron core.

The press fitting jig 100 provided by the utility model is used for assembling the inner and outer iron cores of the stator and the rotor of various types of motors, and before press fitting of the inner and outer iron cores, the inner iron core and the outer iron core are required to be respectively fixed, positioned and installed. Firstly, the outer iron core is positioned and installed, the outer iron core is placed into the guide block 32 arranged on the first support frame 31, the annular limiting boss on the inner surface of the guide block 32 and the annular groove on the outer surface of the outer iron core form guiding fit, the inner iron core is placed above the outer iron core, the driving air cylinders 332 on the second support frames 331 located on two sides of the guide block 32 drive the clamping jaws 333 towards the direction of the outer iron core, the clamping jaws 333 clamp the joint part of the outer iron core and the inner iron core, and therefore double repositioning of the outer iron core and positioning and installing operation of the inner iron core are achieved. The driving motor 51 drives the screw 523 to drive the slider 522 to vertically descend on the support plate 20 along the direction of the screw guide assembly 52, the connecting assembly 42 fixed on the slider 522 drives the pressing head 41 fixed below the connecting assembly 42 to vertically descend on the support plate 20, when the lower end of the pressing head 41 abuts against the upper end of the inner iron core fixed above the outer iron core, the driving motor 51 continuously drives the screw 523, so that the connecting assembly 42 fixed on the slider 522 drives the pressing head 41 fixed below the connecting assembly 42 to press the inner iron core into the outer iron core, when the annular boss at the upper end of the inner iron core abuts against the upper surface of the clamping jaw 333, the driving cylinders 332 on the second support frames 331 at the two sides of the guide block 32 drive the clamping jaw 333 to horizontally move rightwards on the base 10, so that the clamping jaw 333 loosens the inner iron core and the outer iron core and restores to the original position, and the driving motor 51 continuously drives the screw 523, so that the connecting member 42 fixed to the sliding block 522 brings the pressing head 41 fixed below the connecting member 42 to press the inner core completely into the outer core. Subsequently, the driving motor 51 drives the screw 523 to drive the slider 522 to vertically ascend on the support plate 20 along the direction of the screw guide assembly 52, the connecting assembly 42 fixed on the slider 522 drives the pressing head 41 fixed below the connecting assembly 42 to return to the original position, and finally, the pressed iron core is detached from the guide block 32.

The pressing jig 100 provided by the utility model can be used for assembling the inner and outer iron cores of the stators and rotors of various types of motors, the whole process is safe in operation, the assembling precision can be ensured, the structure of the whole machine is simple and compact, the maintenance of the whole machine is convenient, the mounting process of the motors is simplified, the assembling time is saved, the working efficiency is improved, the assembling cost is reduced, and the safety during manual operation is ensured.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a pressfitting tool for with interior iron core pressfitting inside outer iron core, its characterized in that, including the base be the backup pad of vertical setting on the base, be fixed in be used for fixing on the base the clamping subassembly of outer iron core, set up in be used for in the backup pad with interior iron core is impressed inside the pressure head subassembly of outer iron core and set up in be used for the drive in the base the drive assembly of the vertical lift of pressure head subassembly.

2. The press-fit jig according to claim 1, wherein the clamping assembly includes a first support frame fixed to the base and a guide block disposed on the first support frame for fixing the outer core.

3. The press-fit jig according to claim 2, wherein the clamping assembly further includes a pair of clamping portions disposed on the first support frame and located at two sides of the guide block for clamping the outer core.

4. A press-fit jig according to claim 3 wherein the holding portion comprises a second support frame fixed to the first support frame, a clamping jaw provided on the second support frame, and a driving cylinder for driving the clamping jaw to move toward the outer core.

5. The pressing fixture of claim 4, wherein the clamping portion further comprises a positioning post disposed on the clamping jaw.

6. The jig of claim 4, wherein the fixture further comprises a guide post disposed between the first support frame and the second support frame, the guide post being sleeved with a spring.

7. The bonding jig of claim 2, wherein the driving assembly comprises a lead screw guide assembly disposed on the supporting plate and a driving motor for driving the lead screw guide assembly.

8. The jig of claim 7, wherein the lead screw guide assembly comprises a lead screw disposed on the support plate and driven by the driving motor to rotate, two guide rails fixed on the support plate and respectively disposed at two sides of the lead screw, and a slider disposed between the lead screw and the guide rails.

9. The press fit jig of claim 8, wherein the pressing head assembly comprises a connecting assembly fixed to the slide block and a pressing head fixed to the connecting assembly and located above the guide block.

10. The jig of claim 9, wherein the connecting assembly comprises a connecting plate fixed to the sliding block, a third supporting frame vertically disposed on the connecting plate, and a head plate fixed below the third supporting frame, and the press head is fixed below the head plate.