Universal positioning press-fitting die for internally-wound stators

Abstract

The universal positioning press-fitting die comprises a bottom plate, a positioning block, a spring, a main core shaft, an auxiliary core shaft, an upper positioning die and a lower positioning die, according to the utility model, a general positioning press-fitting die is adopted to ensure mechanical flexible positioning in the stator press-fitting process, so that the functions of quick positioning, accurate and stable crimping and the like can be realized, and the quick remodeling capability is met; the method is convenient to operate and high in efficiency, human differences are avoided to a great extent, meanwhile, the press fitting quality and consistency of the stator winding iron core and the machine shell can be guaranteed, and therefore the product percent of pass is increased, and personal safety risks are reduced to a certain extent. The universal positioning press-fitting die is flexible in application environment, can be matched with a manual press, a cylinder press, a servo press and other equipment for use, and is suitable for the production mode requirements of multi-variety and small-batch enterprises. The positioning and press-fitting device is mainly suitable for positioning and press-fitting operation of the stator winding iron core and the machine shell, and is not limited to the application range of auxiliary press equipment.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field, concretely relates to a general positioning press -fitting mould of inner winding stator. BACKGROUND

[0002] With the continuous development of motor technology and the increasing requirement of motor performance in various industries, the research and application of inner winding stator gradually become widespread. In the process of industrial automation, the precision, efficiency and reliability of motor are required higher and higher, and the trend of energy saving and environmental protection also promotes people to study more efficient motor structure; mainly embodied in brushless DC motor, stepper motor, AC servo motor and the like. In order to meet that inner winding stator can realize more powerful motor performance in limited space, the slot area is usually increased to improve the slot fill rate, then the press -fitting space is limited, thereby leading to the difficulty of press -fitting process; the conventional press -fitting mode is difficult to guarantee the press -fitting quality and consistency, and is prone to cause the risk of stator scrap.

[0003] At present, a press ring tool is used for the press -fitting process of inner winding stator; the shell is preheated to a certain temperature, vertically upwards, the stator winding core is vertically placed in the shell guide opening (about C2) by manual, then the stator winding core is pressed into the shell interior by the force of pressure equipment. The press ring tool used in the prior art mainly functions is to transmit the equipment pressure to the force -bearing surface of the stator winding core, and it is difficult to realize the positioning function, mainly relying on manual feeling alignment, and the stator winding core and shell are prone to jamming phenomenon in the press -fitting process, leading to stator scrap; secondly, the press -connectable area of the stator winding core is small, usually only 1-2mm wide circular area, so that the press ring tool is usually designed to be thin, and the force -bearing area is small, which is prone to damage under the condition of large force, thereby leading to the failure of normal press -fitting of the stator and the generation of scrap. In summary, the prior art has the disadvantages of large artificial difference, low operation efficiency, poor consistency, high scrap risk and the like, and there are personal safety hazards. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a general positioning press -fitting mould of inner winding stator, which comprises a base plate, a positioning block, a spring, a main shaft, a vice shaft, an upper positioning mould and a lower positioning mould.

[0005] The base plate is provided with a through hole I in the center of the plate surface, and a through slot is arranged on one side of the through hole I.

[0006] The main shaft is provided with a through hole II in the center along the axis, and the diameter of the through hole II is matched with that of the positioning block.

[0007] The bottom of the main shaft is provided with a baffle.

[0008] The baffle is matched with the through hole I of the base plate, and is installed or dismounted through the guiding effect of the through slot.

[0009] The auxiliary mandrel comprises an inner positioning section and an axial positioning section.

[0010] The diameter of the inner positioning section is smaller than the inner diameter of the spring.

[0011] The axial positioning section is adapted to the through hole II of the main mandrel.

[0012] The upper positioning die and the lower positioning die are arranged in a spaced manner, and are respectively provided with a groove I and a groove II on opposite sides.

[0013] The groove I of the upper positioning die is provided with a through hole III at the center, and the diameter of the through hole III is adapted to the axial positioning section of the auxiliary mandrel.

[0014] The side wall of the groove I is provided with a plurality of wire outlet grooves.

[0015] The groove II of the lower positioning die is provided with a through hole IV at the center, and the diameter of the through hole IV is adapted to the outer diameter of the main mandrel.

[0016] The lower positioning die is provided with a positioning groove on the side opposite to the upper positioning die.

[0017] The positioning block is welded in the through hole II of the main mandrel.

[0018] The baffle of the main mandrel is installed in the through hole I of the bottom plate, and the main mandrel passes through the through hole IV of the lower positioning die.

[0019] The lower workpiece is installed on the positioning groove of the lower positioning die.

[0020] One end of the spring is sleeved on the inner positioning section of the auxiliary mandrel, and the other end extends into the through hole II of the main mandrel to abut against the positioning block.

[0021] The upper end of the upper workpiece abuts against the upper positioning die, and the lower end is placed in the lower workpiece.

[0022] After the axial positioning section of the auxiliary mandrel passes through the upper workpiece, it extends out of the through hole III of the upper positioning die.

[0023] The pressure equipment is used to press downward from the top end of the upper positioning die, and the upper workpiece is pressed into the lower workpiece by compressing the spring, so as to complete the press fitting of the workpiece.

[0024] Further, the upper workpiece comprises a stator winding iron core.

[0025] Further, the wire outlet of the stator winding iron core is led out from the wire outlet groove of the upper positioning die.

[0026] Further, the lower workpiece comprises a machine shell.

[0027] Further, a plurality of screw holes I are arranged on the plate surface of the bottom plate.

[0028] The screw hole I of the bottom plate is fixed on the workbench through the mounting screw b.

[0029] Further, the bottom plate is provided with a plurality of screw holes II on the plate surface.

[0030] The positioning press fitting mold further comprises a handle.

[0031] The handle is installed on the screw hole II of the bottom plate through the mounting screw a.

[0032] Further, the upper positioning mold is provided with a stop.

[0033] Further, the upper positioning mold and the lower positioning mold are changed according to the actual press fitting workpiece requirements.

[0034] The technical effect of the utility model is self-evident, the utility model provides a kind of general positioning press fitting mold of inner winding stator to replace traditional manual press fitting and can guarantee press fitting quality, efficiency and consistency method;It is mainly suitable for the positioning press fitting operation of stator winding core and shell, and is not limited to the use range of auxiliary press equipment.

[0035] The utility model adopts a kind of general positioning press fitting mold to guarantee the mechanical flexible positioning of stator press fitting process, can realize quick positioning, pressure connection steady function, and meet quick change ability;The method is easy to operate and high in efficiency, greatly avoids artificial difference, and can guarantee the press fitting quality and consistency of stator winding core and shell, to improve product pass rate, reduce personal safety risk to a certain extent.The general positioning press fitting mold application environment is more flexible, can be used with hand press machine, cylinder press, servo press and other equipment, and is suitable for the production mode needs of multi-variety, small batch enterprises.

[0036] Using the general positioning press fitting mold of inner winding stator of the utility model for press fitting process does not need hand assistance, avoids mechanical pressure injury risk, and is more convenient and simple to operate, accurate positioning, avoids artificial difference;To truly improve the press fitting efficiency of inner winding stator, while guaranteeing press fitting quality and consistency.

[0037] The utility model has novel, simple and beautiful structure, has flexible adjustment to guarantee workpiece accurate positioning;The utility model has good compatibility and interchangeability, can guarantee quick change;The utility model meets the requirements of safe production and multi-variety small batch production, and guarantees the press fitting efficiency, quality and consistency of inner winding stator. ACCURACY

[0038] Figure 1 It is the schematic view of inner winding stator press fitting work;

[0039] Figure 2 It is the bottom plate schematic view.Figure 2 (a) is a bottom plate plan view; Figure 2 (b) is a bottom plate front view;

[0040] Figure 3 is a schematic view of a positioning block; Figure 3 (a) is a positioning block front view; Figure 3 (b) is a positioning block side view;

[0041] Figure 4 is a schematic view of a main mandrel; Figure 4 (a) is a main mandrel side view; Figure 4 (b) is a main mandrel sectional view;

[0042] Figure 5 is a schematic view of a secondary mandrel; Figure 5 (a) is a secondary mandrel side view; Figure 5 (b) is a secondary mandrel front view;

[0043] Figure 6 is a schematic view of an upper positioning mold; Figure 6 (a) is an upper positioning mold front view; Figure 6 (b) is an upper positioning mold sectional view;

[0044] Figure 7 is a schematic view of a lower positioning mold; Figure 7 (a) is a lower positioning mold front view; Figure 7 (b) is a lower positioning mold sectional view;

[0045] Figure 8 is a general positioning and pressing mold assembly front view of an inner-wound stator;

[0046] Figure 9 is a general positioning and pressing mold assembly bottom view of an inner-wound stator;

[0047] In the figure, the bottom plate 101, the through hole I 1011, the through slot 1012, the screw hole I 1013, the screw hole II 1014, the positioning block 102, the spring 103, the main mandrel 104, the through hole II 1041, the baffle 1042, the secondary mandrel 105, the inner positioning section 1051, the axial positioning section 1052, the handle 106, the mounting screw a 107, the mounting screw b 108, the upper positioning mold 109, the recess I 1091, the through hole III 1092, the outgoing line slot 1093, the lower positioning mold 110, the recess II 1101, the through hole IV 1102, the positioning slot 1103, the stator winding core 2, the casing 3, the pressing equipment 4, and the outgoing line 5. DETAILED DESCRIPTION

[0048] The utility model is further described below in combination with the embodiments, but should not be understood as the above-mentioned subject matter of the utility model being limited to the following embodiments. Various substitutions and changes can be made according to the ordinary technical knowledge and conventional means in the art without departing from the above-mentioned technical thought of the utility model, and all should be included in the protection scope of the utility model.

[0049] Embodiment 1:

[0050] Referring to Figures 1 to 9 A general positioning and pressing die for inner winding stator includes a base plate 101, a positioning block 102, a spring 103, a main core shaft 104, a secondary core shaft 105, an upper positioning die 109 and a lower positioning die 110.

[0051] The base plate 101 is provided with a through hole I1011 in the center of the plate surface, and a through slot 1012 is arranged on one side of the through hole I1011.

[0052] The main core shaft 104 is provided with a through hole II1041 in the center along the axis, and the diameter of the through hole II1041 is adapted to that of the positioning block 102.

[0053] The bottom of the main core shaft 104 is provided with a baffle 1042.

[0054] The baffle 1042 is adapted to the through hole I1011 of the base plate 101, and is installed or dismounted through the guiding effect of the through slot 1012.

[0055] The secondary core shaft 105 includes an inner positioning section 1051 and an axial positioning section 1052.

[0056] The diameter of the inner positioning section 1051 is smaller than the inner diameter of the spring 103.

[0057] The axial positioning section 1052 is adapted to the through hole II1041 of the main core shaft 104.

[0058] The upper positioning die 109 and the lower positioning die 110 are arranged at intervals, and are respectively provided with a recess I1091 and a recess II1101 on opposite sides.

[0059] The recess I1091 of the upper positioning die 109 is provided with a through hole III1092 in the center, and the diameter of the through hole III1092 is adapted to that of the axial positioning section 1052 of the secondary core shaft 105.

[0060] The side wall of the recess I1091 is provided with a plurality of wire grooves 1093.

[0061] The recess II1101 of the lower positioning die 110 is provided with a through hole IV1102 in the center, and the diameter of the through hole IV1102 is adapted to the outer diameter of the main core shaft 104.

[0062] The lower positioning die 110 is provided with a positioning groove 1103 on one side relative to the upper positioning die 109.

[0063] The positioning block 102 is welded in the through hole II 1041 of the main shaft 104.

[0064] The baffle 1042 of the main shaft 104 is installed in the through hole I 1011 of the bottom plate 101, and the main shaft 104 passes through the through hole IV 1102 of the lower positioning die 110.

[0065] The lower workpiece is installed on the positioning groove 1103 of the lower positioning die 110.

[0066] One end of the spring 103 is sleeved on the inner positioning section 1051 of the auxiliary shaft 105, and the other end extends into the through hole II 1041 of the main shaft 104 and abuts against the positioning block 102.

[0067] The upper end of the upper workpiece abuts against the upper positioning die 109, and the lower end is placed in the lower workpiece.

[0068] After the axial positioning section 1052 of the auxiliary shaft 105 passes through the upper workpiece, it extends out of the through hole III 1092 of the upper positioning die 109.

[0069] The pressure equipment 4 is used to press downward from the top end of the upper positioning die 109, and the upper workpiece is pressed into the lower workpiece by compressing the spring 103, so that the workpiece is completed.

[0070] Embodiment 2:

[0071] A universal positioning and pressing die for an inner-wound stator mainly includes the technical content of embodiment 1, and further, the upper workpiece includes a stator winding core 2.

[0072] Embodiment 3:

[0073] A universal positioning and pressing die for an inner-wound stator mainly includes the technical content of any one of embodiments 1 to 2, and further, the outgoing line 5 of the stator winding core 2 is led out from the outgoing line groove 1093 of the upper positioning die 109.

[0074] Embodiment 4:

[0075] A universal positioning and pressing die for an inner-wound stator mainly includes the technical content of any one of embodiments 1 to 3, and further, the lower workpiece includes a machine shell 3.

[0076] Embodiment 5:

[0077] A universal positioning and pressing die for an inner-wound stator mainly includes the technical content of any one of embodiments 1 to 4, and further, the bottom plate 101 is provided with a plurality of screw holes I 1013 on the plate surface.

[0078] The threaded hole I1013 of the bottom plate 101 is fixed on the workbench by the mounting screw b108.

[0079] Embodiment 6:

[0080] The universal positioning and pressing die for the inner-wound stator mainly includes the technical content of any one of embodiments 1 to 5, and further, the bottom plate 101 is provided with a plurality of threaded holes II1014 on the plate surface.

[0081] The positioning and pressing die further includes a handle 106.

[0082] The handle 106 is installed at the threaded hole II1014 of the bottom plate 101 by the mounting screw a107.

[0083] Embodiment 7:

[0084] The universal positioning and pressing die for the inner-wound stator mainly includes the technical content of any one of embodiments 1 to 6, and further, the upper positioning die 109 is provided with a stopper.

[0085] Embodiment 8:

[0086] The universal positioning and pressing die for the inner-wound stator mainly includes the technical content of any one of embodiments 1 to 7, and further, the upper positioning die 109 and the lower positioning die 110 are replaced according to the actual pressing workpiece requirements.

[0087] Embodiment 9:

[0088] Referring to Figures 1 to 9 The universal positioning and pressing die for the inner-wound stator includes a bottom plate 101, a positioning block 102, a spring 103, a main core shaft 104, a secondary core shaft 105, an upper positioning die 109, and a lower positioning die 110.

[0089] The center of the plate surface of the bottom plate 101 is provided with a through hole I1011, and one side of the through hole I1011 is provided with a through slot 1012.

[0090] The center of the main core shaft 104 is provided with a through hole II1041 along the axis, and the through hole II1041 is adapted to the diameter of the positioning block 102.

[0091] The bottom of the main core shaft 104 is provided with a baffle 1042.

[0092] The baffle 1042 is adapted to the through hole I1011 of the bottom plate 101, and is installed or disassembled by the guiding action of the through slot 1012.

[0093] The secondary core shaft 105 includes an inner positioning section 1051 and an axial positioning section 1052.

[0094] The diameter of the inner positioning section 1051 is smaller than the inner diameter of the spring 103.

[0095] The axial positioning segment 1052 is adapted to the through hole II 1041 of the main core shaft 104.

[0096] The axial positioning segment 1052 has high roughness and precision requirements.

[0097] The upper positioning die 109 and the lower positioning die 110 are arranged at intervals, and recess I 1091 and recess II 1101 are respectively arranged on the opposite sides.

[0098] The recess I 1091 is used to avoid the vulnerable part of the upper end of the upper workpiece (such as the upper end of the stator winding core).

[0099] The recess II 1101 is used to avoid the vulnerable part of the lower end of the upper workpiece (such as the lower end of the stator winding core).

[0100] The recess I 1091 of the upper positioning die 109 is provided with a through hole III 1092, and the diameter of the through hole III 1092 is adapted to the axial positioning segment 1052 of the auxiliary core shaft 105.

[0101] The side wall of the recess I 1091 is provided with a plurality of wire grooves 1093.

[0102] The recess II 1101 of the lower positioning die 110 is provided with a through hole IV 1102, and the outer diameter of the through hole IV 1102 is adapted to the main core shaft 104.

[0103] The lower positioning die 110 is provided with a positioning groove 1103 on the side opposite to the upper positioning die 109, which is used for positioning the lower workpiece.

[0104] The positioning block 102 is welded in the through hole II 1041 of the main core shaft 104.

[0105] The baffle 1042 of the main core shaft 104 is installed in the through hole I 1011 of the bottom plate 101, and the main core shaft 104 passes through the through hole IV 1102 of the lower positioning die 110.

[0106] The lower workpiece is installed on the positioning groove 1103 of the lower positioning die 110.

[0107] One end of the spring 103 is sleeved on the inner positioning segment 1051 of the auxiliary core shaft 105, and the other end extends into the through hole II 1041 of the main core shaft 104 and abuts against the positioning block 102.

[0108] The upper end of the upper workpiece abuts against the upper positioning die 109, and the lower end is placed in the lower workpiece.

[0109] After the axial positioning segment 1052 of the auxiliary core shaft 105 passes through the upper workpiece, it extends out of the through hole III 1092 of the upper positioning die 109.

[0110] The upper workpiece is pressed into the lower workpiece by compressing the spring 103 through the pressure equipment 4 from the top of the upper positioning die 109 to the bottom, and the workpiece is completed.

[0111] Embodiment 10:

[0112] The main technical content of the inner-wound stator universal positioning and press-fitting die is seen in any one of embodiments 9 to 10, and further, the upper workpiece includes the stator winding core 2.

[0113] Embodiment 11:

[0114] The main technical content of the inner-wound stator universal positioning and press-fitting die is seen in any one of embodiments 9 to 10, and further, the stator winding core 2 includes the outgoing line 5 (such as the three-phase outgoing line of the stator winding core) which is led out from the outgoing line groove 1093 of the upper positioning die 109.

[0115] Embodiment 12:

[0116] The main technical content of the inner-wound stator universal positioning and press-fitting die is seen in any one of embodiments 9 to 11, and further, the lower workpiece includes the machine shell 3.

[0117] Embodiment 13:

[0118] The main technical content of the inner-wound stator universal positioning and press-fitting die is seen in any one of embodiments 9 to 12, and further, the bottom plate 101 is provided with four screw holes I 1013 on the plate surface.

[0119] The screw holes I 1013 of the bottom plate 101 are fixed on the workbench through four mounting screws b 108.

[0120] Embodiment 14:

[0121] The main technical content of the inner-wound stator universal positioning and press-fitting die is seen in any one of embodiments 9 to 13, and further, the bottom plate 101 is provided with four screw holes II 1014 on the plate surface.

[0122] The positioning and press-fitting die further includes two handles 106.

[0123] The handles 106 are installed at the screw holes II 1014 of the bottom plate 101 through four mounting screws a 107.

[0124] Embodiment 15:

[0125] The main technical content of the inner-wound stator universal positioning and press-fitting die is seen in any one of embodiments 9 to 14, and further, the upper positioning die 109 is provided with a stop opening for positioning the upper workpiece.

[0126] Embodiment 16:

[0127] A general positioning and press-fitting mold for an inner-wound stator, the main technical content of which is shown in any one of embodiments 9 to 15, and further, the upper positioning mold 109 and the lower positioning mold 110 are changed according to the actual press-fitting workpiece requirements.

[0128] Embodiment 17

[0129] A method for press-fitting a workpiece using the positioning and press-fitting mold of any one of embodiments 9 to 16, comprising the following steps:

[0130] 1) Fix the base plate on the workbench and install the handle on the base plate.

[0131] 2) Install the positioning block into the bottom of the through hole II of the main mandrel and weld it firmly.

[0132] 3) Install the inner positioning section of the auxiliary mandrel into the spring and downwardly into the through hole II of the main mandrel.

[0133] 4) Place the baffle of the main mandrel into the through slot of the base plate and horizontally into the through hole I of the base plate for fixation.

[0134] 5) Pass the lower positioning mold through the auxiliary mandrel and the main mandrel in sequence and fix it on the base plate.

[0135] 6) Install the lower workpiece so that the bottom of the lower workpiece is installed on the positioning slot of the lower positioning mold.

[0136] 7) Install the upper workpiece so that the bottom of the upper workpiece is connected to the top of the lower workpiece.

[0137] 8) Pass the upper positioning mold through the auxiliary mandrel and assemble it on the upper workpiece, with the lower end of the upper positioning mold abutting the upper workpiece.

[0138] 9) Adjust the parameters of the pressure equipment, start the pressure equipment, and the auxiliary mandrel, the upper positioning mold and the upper workpiece descend synchronously to complete the press-fitting of the workpiece.

[0139] Embodiment 18

[0140] A general positioning and press-fitting method for an inner-wound stator, the main technical content of which is shown in embodiment 17, and further, the parameters of the pressure equipment include the pressing depth and the pressure size.

[0141] Embodiment 19

[0142] Referring to Figures 1 to 9 A general positioning and press-fitting mold for an inner-wound stator, a general positioning and press-fitting mold for an inner-wound stator, the main technical content of which includes:

[0143] A general positioning and pressing die for inner-wound stator, mainly suitable for quick positioning and pressing of stator winding core and shell, and capable of quick model change. The general positioning and pressing die for inner-wound stator comprises a base plate 101, a positioning block 102, a spring 103, a main shaft 104, an auxiliary shaft 105, two handles 106, four mounting screws a 107, four mounting screws b 108, an upper positioning die 109 and a lower positioning die 110.

[0144] 1. The general positioning and pressing die for inner-wound stator is as follows:

[0145] 1) The base plate 101 is placed on a workbench as a mother plate, and serves as positioning support and connection for other components; four through holes (including counterbores) are uniformly drilled on the surface to cooperate with the mounting screws b 108 for fastening with the workbench; four threaded holes are uniformly drilled on the surface to cooperate with the mounting screws a 107 for fastening with the two handles 106; a through slot (circular arc + horn shape) is provided, the circular arc portion cooperates with the circular arc surface of the main shaft 104, and the horn shape provides a guide for horizontal installation or removal of the main shaft 104.

[0146] 2) The positioning block 102 is cylindrical, is fitted into the inner hole of the main shaft 104 for positioning, and is welded to be closed.

[0147] 3) The spring 103 is a common standard component, is fitted into the main shaft 104, and serves as a supporting function for elastic movement of the auxiliary shaft 105.

[0148] 4) The main shaft 104 is in the shape of "T", the outer circle has high precision, is mainly used for lower positioning with the shell; the step is in the shape of a waist, the circular arc surface is mainly used for positioning with the through slot circular arc surface of the base plate 101, the opposite side dimension is slightly smaller than the minimum width of the horn shape of the base plate 101, mainly to facilitate horizontal installation or removal of the main shaft 104; a through hole is drilled inside, with high roughness and precision, and is mainly used for axial elastic positioning with the auxiliary shaft 105.

[0149] 5) The auxiliary shaft 105 is cylindrical, is divided into two sections, the small diameter section is slightly smaller than the inner diameter of the spring 103, mainly to be embedded in the spring 103 for positioning; the large diameter section has high roughness and precision, and is mainly used for axial elastic positioning with the inner hole of the main shaft 104.

[0150] 6) The handle 106 is a common standard component, facilitates end holding, carrying, etc. of the whole pressing die, and is fastened with the base plate 101 by the mounting screws a 107.

[0151] 7) The mounting screws a 107 and the mounting screws b 108 are common standard components, and serve as mounting and fixing functions.

[0152] 8) Upper positioning die 109: mainly "hat-shaped", used for positioning with the upper workpiece (such as the stator winding core). A through hole is drilled in the center for axial positioning with the secondary core shaft 105, a pin groove is turned at the bottom mainly to avoid the vulnerable part of the workpiece (such as the upper end of the stator winding core), and three grooves are milled on the side for the workpiece vulnerable part (such as the three-phase lead of the stator winding core) to lead out, and a pin stop is turned at the bottom end for positioning with the workpiece (such as the force-bearing annular surface of the stator winding core).

[0153] 9) Lower positioning die 110: used for positioning with the lower workpiece (such as the machine shell). A through hole is drilled in the center for axial positioning with the primary core shaft 104, a pin groove is turned at the upper part to avoid the vulnerable part of the workpiece (such as the lower end of the stator winding core), and a pin stop is turned at the top for positioning with the workpiece (such as the force-bearing annular surface of the machine shell).

[0154] 2. The method for using the inner winding stator press during assembly is as follows:

[0155] 1) Place the bottom plate 101 stably on the workbench of a hand press, pneumatic cylinder press or servo press, and fasten it with four installation screws b108;

[0156] 2) Fasten the two handles 106 with the four installation screws a107 to the bottom plate 101;

[0157] 3) Install the positioning block 102 into the bottom hole of the primary core shaft 104 for positioning (leave a suitable welding depth), and then weld it firmly from the bottom end;

[0158] 4) Install the small-diameter end of the secondary core shaft 105 into the spring 103 for positioning, and then install the whole assembly with the spring 103 facing down into the primary core shaft 104;

[0159] 5) Place the assembly of the above steps 3) to 4) (hereinafter referred to as "middle positioning die") on the bottom plate 101 at the nearest suitable position and place it stably;

[0160] 6) Pass the lower positioning die 110 through the secondary core shaft 105 and the primary core shaft 104 from top to bottom for positioning;

[0161] 7) Install the lower workpiece (such as the machine shell) from top to bottom, with the lower part positioned by the lower positioning die 110, and install the upper workpiece (such as the stator winding core) from top to bottom, with the upper part connected to the lower workpiece (such as the machine shell);

[0162] 8) Install the upper positioning die 109 from top to bottom with the secondary core shaft 105 for assembly positioning, with the lower part positioned by the upper workpiece (such as the stator winding core), and at the same time, the vulnerable part of the upper workpiece (such as the three-phase lead of the stator winding core) is led out from the open slot;

[0163] 9) Assemble the above steps 5) ~ 8) as a whole to the waist step of the main shaft 104, and then put it into the horizontal direction of the bottom plate 101, and then rotate the main shaft 104 clockwise by 90°, so that the two circular arc surfaces are matched;

[0164] 10) According to the technical requirements, adjust the parameters of the pressure equipment, and start the pressure equipment under the condition of environmental safety, that is, the pressure head is down, the auxiliary shaft 105 and the upper positioning die 109 are synchronized with the upper workpiece (such as the stator winding core) to the position, that is, the stator is pressed and assembled.

[0165] 3. Other instructions

[0166] The middle positioning die (mentioned in the above 2) and 5) ) is a universal die, and the upper positioning die 109 and the lower positioning die 110 can be quickly changed according to the actual pressing requirement of the workpiece (inner winding stator).

[0167] During the pressing process using the universal positioning and pressing die for the inner winding stator, no manual assistance is required, which avoids the risk of mechanical pressure injury, and the operation is more convenient and simple, the positioning is accurate, and the human difference is avoided; thereby truly improving the pressing efficiency of the inner winding stator, and ensuring the pressing quality and consistency.

Claims

1. A general positioning press fitting mold for an inner wound rotor, characterized by, The utility model relates to a kind of press-fit device for stator winding core, including: Bottom plate (101), positioning block (102), spring (103), main mandrel (104), auxiliary mandrel (105), upper positioning die (109), lower positioning die (110); The center of the bottom plate (101) is provided with a through hole I (1011), and one side of the through hole I (1011) is provided with a through slot (1012); The center of the main mandrel (104) is provided with a through hole II (1041) along the axis, and the through hole II (1041) is matched with the diameter of the positioning block (102); The bottom of the main mandrel (104) is provided with a baffle (1042); The baffle (1042) is matched with the through hole I (1011) of the bottom plate (101), and is installed or disassembled through the guiding action of the through slot (1012); The auxiliary mandrel (105) includes an inner positioning section (1051) and an axial positioning section (1052); The diameter of the inner positioning section (1051) is smaller than the inner diameter of the spring (103); The axial positioning section (1052) is matched with the through hole II (1041) of the main mandrel (104); The upper positioning die (109) and the lower positioning die (110) are arranged at intervals, and the opposite sides are respectively provided with a groove I (1091) and a groove II (1101); The center of the groove I (1091) of the upper positioning die (109) is provided with a through hole III (1092), and the through hole III (1092) is matched with the diameter of the axial positioning section (1052) of the auxiliary mandrel (105); The side wall of the groove I (1091) is provided with a plurality of wire grooves (1093); The center of the groove II (1101) of the lower positioning die (110) is provided with a through hole IV (1102), and the through hole IV (1102) is matched with the outer diameter of the main mandrel (104); The lower positioning die (110) is provided with a positioning groove (1103) opposite the upper positioning die (109); The positioning block (102) is welded in the through hole II (1041) of the main mandrel (104); The baffle (1042) of the main mandrel (104) is installed in the through hole I (1011) of the bottom plate (101), and the main mandrel (104) passes through the through hole IV (1102) of the lower positioning die (110); The lower workpiece is installed on the positioning groove (1103) of the lower positioning die (110); One end of the spring (103) is sleeved on the inner positioning section (1051) of the auxiliary mandrel (105), and the other end extends into the through hole II (1041) of the main mandrel (104) and abuts against the positioning block (102); The upper end of the upper workpiece abuts against the upper positioning die (109), and the lower end is placed in the lower workpiece; After the axial positioning section (1052) of the auxiliary mandrel (105) passes through the upper workpiece, it extends out of the through hole III (1092) of the upper positioning die (109); The upper workpiece is pressed into the lower workpiece by compressing the spring (103) by pressing from the top of the upper positioning die (109) using a pressure device (4), and the press-fitting of the workpiece is completed.

2. A general positioning and press-fitting die for an inner-wound rotor according to claim 1, wherein The upper workpiece includes a stator winding core (2).

3. A general positioning and press-fitting die for an inner-wound rotor according to claim 2, wherein The outgoing line (5) of the stator winding core (2) is led out from the outgoing line groove (1093) of the upper positioning die (109).

4. A general purpose positioning and press fitting die for inner winding of a rotor as defined in claim 1, wherein The lower workpiece comprises a shell (3).

5. A general purpose positioning and press fitting die for inner winding of a rotor as defined in claim 1, wherein A plurality of screw holes I (1013) are arranged on the plate surface of the bottom plate (101). The screw holes I (1013) of the bottom plate (101) are fixed on the workbench through mounting screws b (108).

6. A general purpose positioning and press fitting die for inner winding of a rotor as defined in claim 1, wherein A plurality of screw holes II (1014) are arranged on the plate surface of the bottom plate (101). The positioning press-fitting die further comprises a handle (106). The handle (106) is installed at the screw holes II (1014) of the bottom plate (101) through mounting screws a (107).

7. A general purpose positioning and press fitting die for inner winding of a rotor as defined in claim 1, wherein The upper positioning die (109) is provided with a stop opening.

8. A general purpose positioning and press fitting die for inner winding of a rotor as defined in claim 1, wherein The upper positioning die (109) and the lower positioning die (110) are replaced according to the actual press-fitting workpiece requirements.

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