Motor iron core overall arrangement positioning jig

Abstract

The utility model discloses a motor iron core integral arrangement positioning jig, which comprises a bearing assembly, a lateral positioning assembly and a center positioning assembly, the bearing assembly comprises a base and a plurality of outer limiting pieces, each outer limiting piece is provided with an avoiding through hole, the lateral positioning assembly is sleeved on the bearing assembly in a lifting manner, and the center positioning assembly is sleeved on the base. The lateral positioning assembly comprises a base plate, a plurality of vertical pieces are vertically arranged on the outer edge of the base plate, at least one locking piece is installed on each vertical piece, when the locking pieces are in a locking state, the iron core single bodies at the corresponding positions are limited on the outer side, and the iron core single bodies at the corresponding positions are limited on the inner side through the center positioning assembly. After the bearing assembly, the lateral positioning assembly and the center positioning assembly are matched to achieve overall arrangement and positioning of all the iron core single bodies, the welding equipment conducts welding on the welding parts of every two adjacent iron core single bodies through the corresponding receding through holes. The positioning jig is high in working efficiency and accurate in positioning, and ensures the welding precision of the motor iron core.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor iron core processing, in particular to a motor iron core overall arrangement positioning fixture. Background Art

[0002] See also Figure 1 and Figure 2 As shown, this type of motor core 100 has a relatively small volume and is composed of a plurality of core monomers 101. A groove 102 extending along the height direction is provided on the outer surface of each core monomer 101. During the processing of this type of motor core 100, it is necessary to first arrange and position all the core monomers 101, and then weld and fix two adjacent core monomers 101 to form the motor core 100.

[0003] Therefore, during the processing of this type of motor core 100, a jig is inevitably used to arrange and position all the core monomers 101 as a whole. However, the prior art does not have a jig specifically used for arranging and welding this type of motor core 100 as a whole, so it is impossible to arrange and weld this type of motor core as a whole. Utility Model Content

[0004] The utility model aims to provide a motor core overall arrangement positioning fixture to solve the problem in the prior art that the motor cores of the above type cannot be overall arranged and welded.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A motor core overall arrangement positioning fixture, which includes a bearing component, a lateral positioning component and a central positioning component, wherein:

[0007] The bearing assembly includes a base and a plurality of outer limit members vertically spaced on the same circumference of the base, a vertically extending channel is formed between two adjacent outer limit members, and each outer limit member is provided with an avoidance through hole.

[0008] The lateral positioning assembly can be lifted and mounted on the bearing assembly, and the lateral positioning assembly includes a chassis, and a plurality of vertical members located on the same circumference are vertically arranged on the outer edge of the chassis, and at least one locking member is installed on each vertical member radially close to or away from the center of the chassis, and a limiting boss for supporting the core monomer is arranged on the inner side of the locking member, and all the locking members are located in the area surrounded by a plurality of outer limiting members, and the outer wall of the locking member and the inner wall of the outer limiting member have at least mutually matching locking surfaces to lock the locking member with the corresponding outer limiting member, and the bottom of each vertical member is clamped in a channel, and when the locking member is in a locked state, the locking member moves radially inward to limit the core monomer at the corresponding position on the outside,

[0009] The center positioning assembly includes a pull rod assembly and a tensioning assembly. The pull rod assembly is vertically installed at the center of the chassis. The pull rod assembly is at least configured to keep the tensioning assembly in an open state radially outwardly opened to limit the core monomer at the corresponding position on the inner side.

[0010] When the motor core is arranged and positioned as a whole, all the core monomers are placed one by one in the space between the tensioning assembly and the locking piece, and then all the locking pieces are pressed down at the same time so that all the locking pieces are in a locked state. The core monomers at corresponding positions are positioned through the cooperation of the locking piece and the tensioning assembly, and the welding equipment welds the welding parts of two adjacent core monomers through the avoidance through hole.

[0011] Furthermore, the motor core overall arrangement and positioning fixture also includes a limit ring, which is detachably arranged on the base and located at the periphery of the outer limit member. The limit ring is configured to support the bottom end of some or all vertical members to maintain the lateral positioning assembly at a specified height.

[0012] Furthermore, the pull rod assembly includes a center tube, a pull rod and a first elastic member. The center tube is vertically fixed at the center of the chassis. The pull rod is installed in the center tube in a liftable manner. A tensioning head is provided at the top end of the pull rod. The first elastic member is sleeved on the bottom end of the pull rod. The tensioning assembly is arranged between the tensioning head and the top end of the center tube. The first elastic member is configured to keep the pull rod in a low position so that the tensioning head abuts against the tensioning assembly, and then the tensioning assembly is opened radially outward to limit the core monomer at the corresponding position on the inside.

[0013] Furthermore, the tensioning assembly includes multiple tensioning blocks and a second elastic member, each tensioning block corresponds to a locking member, and each tensioning block is provided with a limiting groove. After all the tensioning blocks are arranged, the second elastic member is sleeved in the limiting grooves of all the tensioning blocks to gather all the tensioning blocks, and there are mutually matching conical surfaces between the inner wall of each tensioning block and the tensioning head.

[0014] Furthermore, the first elastic member adopts a coil spring, the inner hole of the center tube is provided with a step hole, the bottom end of the pull rod is provided with a positioning member, one end of the coil spring abuts against the step surface of the step hole, and the other end is limited by the positioning member so that the coil spring always maintains a downward force on the pull rod.

[0015] Furthermore, a plurality of clamping parts are equidistantly extended outward from the outer edge of the chassis, a vertical piece is vertically arranged at the end of each clamping part, and each clamping part is clamped in a corresponding channel.

[0016] Furthermore, two locking rods are arranged at intervals along the height direction on the vertical member, and both locking rods can reciprocate radially along the vertical member. The ends of the two locking rods close to the center are connected to the locking member, and the ends of the two locking rods away from the center are both equipped with a third elastic member.

[0017] Furthermore, the upper inner wall of the vertical member and the lower outer wall of the locking member are provided with mutually matching conical surfaces, the lower inner wall of the vertical member and the upper outer wall of the locking member are provided with mutually matching cylindrical surfaces, and the vertical member and the locking member are locked through the cylindrical surfaces.

[0018] Furthermore, a positioning boss extending in the height direction is detachably mounted on the inner side wall of the locking member, and when the locking member is in a locked state, the positioning boss is inserted into the groove of the core unit.

[0019] The beneficial effect of the utility model is that, compared with the prior art, the motor core overall arrangement and positioning fixture can not only realize the overall arrangement and positioning of all core monomers to achieve the welding of two adjacent core monomers; but also has high working efficiency and precise positioning, thereby ensuring the processing accuracy of the motor core. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of a motor core in the prior art;

[0021] Figure 2 It is a three-dimensional structural schematic diagram of an iron core monomer of a motor iron core in the prior art;

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the motor core overall arrangement and positioning fixture provided by the embodiment of the utility model;

[0023] Figure 4 yes Figure 3 A partial enlarged view of the middle A;

[0024] Figure 5 It is a three-dimensional structural schematic diagram of the bearing assembly of the motor core overall arrangement and positioning fixture provided by the embodiment of the utility model;

[0025] Figure 6 It is a three-dimensional structural schematic diagram of the chassis of the motor core integral arrangement and positioning fixture provided by the embodiment of the utility model;

[0026] Figure 7 It is a schematic diagram of the three-dimensional state of the motor core overall arrangement and positioning fixture provided by the embodiment of the utility model when a single core monomer is placed;

[0027] Figure 8 It is a schematic diagram of the main view of the motor core overall arrangement and positioning fixture provided by the embodiment of the utility model when a single core monomer is placed;

[0028] Fig. 9 yes Figure 8 Cross-section along the middle BB direction;

[0029] Fig.10 It is a schematic diagram of the three-dimensional state of the motor iron core overall arrangement and positioning fixture provided by the embodiment of the utility model when all the iron core monomers are placed;

[0030] Fig.11 This is a schematic diagram of the main view of the motor core overall arrangement and positioning fixture provided by the embodiment of the utility model when all the core monomers are placed;

[0031] Fig.12 yes Fig.11 Cross-section along the mid-CC direction;

[0032] Fig.13 It is a top view schematic diagram of the motor core overall arrangement and positioning fixture provided by the embodiment of the utility model when all the core monomers are placed;

[0033] Fig.14 It is a three-dimensional schematic diagram of the motor core overall arrangement positioning jig provided by the embodiment of the utility model when pressed together;

[0034] Fig.15 It is a schematic diagram of the three-dimensional state of the motor core overall arrangement positioning fixture after being pressed together provided by the embodiment of the utility model;

[0035] Fig.16 It is a cross-sectional schematic diagram of the motor core overall arrangement positioning fixture after being pressed together provided by the embodiment of the utility model;

[0036] Fig.17 It is a three-dimensional structural schematic diagram of the locking member of the motor core integral arrangement positioning fixture provided by an embodiment of the utility model. DETAILED DESCRIPTION

[0037] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0038] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively with reference to the relevant drawings. The preferred embodiments of the utility model are given in the drawings. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thoroughly understood. It should be noted that when a component is referred to as "fixed to" another component, it can be directly on another component or there can also be a central component. When a component is considered to be "connected" to another component, it can be directly connected to another component or there may be a central component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes and are not intended to be the only implementation method. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by technicians in the technical field of the utility model. The terms used in the specification of the utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the utility model. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0039] See also Figures 1 to 12 as well as Fig.17As shown, in this embodiment, a motor core overall arrangement positioning fixture includes a bearing assembly 20, a lateral positioning assembly 30 and a center positioning assembly 40. The bearing assembly 20 includes a base 21 and a plurality of outer limiting members 22 vertically spaced on the same circumference of the base 21, a vertically extending channel 23 is formed between two adjacent outer limiting members 22, and each outer limiting member 22 is provided with an avoidance through hole 24. The lateral positioning assembly 30 can be lifted and mounted on the bearing assembly 20, and the lateral positioning assembly 30 includes a chassis 31, and a plurality of vertical members 32 located on the same circumference are vertically arranged on the outer edge of the chassis 31, and at least one locking member 33 is installed on each vertical member 32 radially close to or away from the center of the chassis 31, and a limiting boss 330 for supporting the core monomer 101 is provided on the inner side of the locking member 33, and all the locking members 33 are located in the area surrounded by the plurality of outer limiting members 22, and the outer wall of the locking member 33 and the inner wall of the outer limiting member 22 have at least There are locking surfaces that cooperate with each other to lock the locking piece 33 with the corresponding outer limit piece 22. The bottom of each vertical piece 32 is clamped in a channel 23. When the locking piece 33 is in a locked state, the locking piece 33 moves radially inward to limit the core monomer 101 at the corresponding position on the outside. The center positioning assembly 40 includes a pull rod assembly 41 and a tensioning assembly 42. The pull rod assembly 41 is vertically installed at the center of the chassis 31. The pull rod assembly 41 is at least configured to keep the tensioning assembly 42 in an open state that is radially outward, so as to limit the core monomer 101 at the corresponding position on the inside. When the motor core is arranged and positioned as a whole, all the core monomers 101 are placed one by one in the space between the tensioning assembly 42 and the locking piece 33, and then all the locking pieces 33 are pressed down at the same time, so that all the locking pieces 33 are in a locked state, and the core monomers 101 at the corresponding positions are positioned by the cooperation of the locking piece 33 and the tensioning assembly 42.

[0040] It can be seen that through the cooperation of the bearing assembly 20, the lateral positioning assembly 30 and the central positioning assembly 40, the overall synchronous positioning of all the core monomers 101 of the motor core is achieved, the positioning accuracy of the core monomers 101 is improved, and the welding quality of the motor core is ensured; at the same time, after the synchronous positioning of all the core monomers 101 of the motor core is completed, the welding equipment implements welding on two adjacent core monomers 101 through the avoidance through holes 24 opened on each outer limit piece 22, which has a simple structure and is convenient for welding operation.

[0041] See also Figure 3 and Figure 7 As shown, as an embodiment, the motor core overall arrangement and positioning fixture also includes a limit ring 50, which is detachably arranged on the base 21 and located on the periphery of the outer limit member 22. The limit ring 50 is configured to support the bottom end of part or all of the vertical members 32 to maintain the lateral positioning assembly 30 at a specified height.

[0042] Specifically, the limiting ring 50 is a circular ring structure with an opening on the side, and is placed on the base 21 through the opening on the side.

[0043] It can be seen that by providing the limiting ring 50 , the lateral positioning assembly 30 is positioned at a specified height when the core monomer 101 is placed, so that all the locking members 33 are in a non-locking state, which facilitates the placement of the core monomer 101 .

[0044] See also Figures 3 to 17 As shown, as an embodiment, the pull rod assembly 41 includes a center tube 410, a pull rod 411 and a first elastic member 412. The center tube 410 is vertically fixed at the center of the chassis 31, and the pull rod 411 can be installed in the center tube 410 in a liftable manner. A tensioning head 413 is provided at the top end of the pull rod 411, and the first elastic member 412 is sleeved on the bottom end of the pull rod 411. The tensioning assembly 42 is arranged between the tensioning head 413 and the top end of the center tube 410. The first elastic member 412 is configured to keep the pull rod 411 in a low position, so that the tensioning head 413 abuts against the tensioning assembly 42, and then the tensioning assembly 42 is opened radially outward to limit the core monomer 101 at the corresponding position on the inside.

[0045] As an embodiment, the tensioning assembly 42 includes a plurality of tensioning blocks 420 and a second elastic member 421, each tensioning block 420 is arranged corresponding to a locking member 33, and a limiting groove 422 is arranged on each tensioning block 420. After all the tensioning blocks 420 are arranged, the second elastic member 421 is sleeved in the limiting groove 422 of all the tensioning blocks 420 to gather all the tensioning blocks 420, and a conical surface that matches each other is provided between the inner wall of each tensioning block 420 and the tensioning head 413.

[0046] As an embodiment, the first elastic member 412 is a coil spring, the inner hole of the center tube 410 is provided with a step hole 414, and the bottom end of the pull rod 411 is provided with a positioning member 415. One end of the coil spring abuts against the step surface of the step hole 414, and the other end is limited by the positioning member 415 so that the coil spring always maintains a downward force on the pull rod 411.

[0047] As an embodiment, a plurality of clip portions 34 are equidistantly extended outward from the outer edge of the chassis 31, a vertical piece 32 is vertically provided at the end of each clip portion 34, and each clip portion 34 is clipped into a corresponding channel 23; the lateral positioning assembly 30 is positioned on the supporting assembly 20 through the clip portion 34.

[0048] As an embodiment, two locking rods 35 are arranged on the vertical member 32 at intervals along the height direction. The two locking rods 35 can reciprocate radially along the vertical member 32. The ends of the two locking rods 35 close to the center are connected to the locking member 33, and the ends of the two locking rods 35 away from the center are both equipped with a third elastic member 36.

[0049] Through the cooperation of the locking rod 35 , the locking member 33 and the third elastic member 36 , the locking member 33 is assembled on the vertical member 32 in a radially movable manner, so as to lock or release the core monomer.

[0050] As an embodiment, the upper inner wall of the vertical piece 32 and the lower outer wall of the locking piece 33 are provided with mutually matching conical surfaces 70, and the lower inner wall of the vertical piece 32 and the upper outer wall of the locking piece 33 are provided with mutually matching cylindrical surfaces 71, and the vertical piece 32 and the locking piece 33 are locked by the cylindrical surface 71.

[0051] By providing mutually matching conical surfaces on the vertical member 32 and the locking member 33, when all the locking members 33 are pressed down at the same time, the locking members 33 can simultaneously move radially toward the center to fix the core monomer 101; by providing mutually matching cylindrical surfaces on the vertical member 32 and the locking member 33, in the locked state, the positions of the vertical member 32 and the locking member 33 are relatively fixed to keep all the core monomers 101 in a fixed state.

[0052] As an implementation manner, a positioning boss 331 extending in the height direction is detachably mounted on the inner side wall of the locking member 33 . When the locking member 33 is in a locked state, the positioning boss 331 is inserted into the groove 102 of the core unit 101 .

[0053] The positioning accuracy of the core monomer 101 is further ensured by the cooperation between the positioning boss 331 and the groove 102 .

[0054] This embodiment also provides a method for welding the motor core as a whole, which uses the above-mentioned motor core as a whole positioning fixture for positioning. The method for welding the motor core as a whole includes the following steps:

[0055] S1, put the lateral positioning assembly 30 on the bearing assembly 20, and keep the lateral positioning assembly 30 at a specified height,

[0056] S2, placing all the core monomers 101 one by one between the tensioning assembly 42 and each locking member 33,

[0057] S3, all the locking members 33 are pressed down at the same time, so that all the locking members 33 are in a locked state, and the core monomers 101 at the corresponding positions are positioned by the cooperation of the locking members 33 and the tensioning assembly 42, so as to lock and position all the core monomers 101, and at this time, the welding parts of the two adjacent core monomers 101 correspond to the avoidance through holes 24,

[0058] S4, the motor core overall arrangement positioning fixture with all the core monomers 101 positioned is moved to the welding station as a whole, and the welding equipment welds the welding parts of two adjacent core monomers 101 through the avoidance through hole 24,

[0059] S5, after the welding is completed, all locking members 33 are unlocked, and the welded motor core is taken out as a whole.

[0060] Specifically, in step S1 , a limit ring 50 is placed on the base 21 , and the lateral positioning assembly 30 is maintained at a specified height by the support of the limit ring 50 ; before implementing step S3 , the limit ring 50 needs to be removed from the base 21 .

[0061] It should be noted that in step S3, all the locking pieces 33 are pressed down at the same time by the pressing part 60. The pressing part 60 includes a main body 600. A circle of pressing cylinder 601 extends downward from the bottom surface of the main body 600. A plurality of pressing grooves 602 are spaced apart on the outer wall of the pressing cylinder 601. The number of the pressing grooves 602 is the same as the number of the vertical pieces 32. When pressing, each vertical piece 32 is inserted into the corresponding pressing groove 602. When the main body 600 moves downward, all the vertical pieces 32 are driven to move downward as a whole through the pressing groove 602, so as to drive all the locking pieces 33 to descend as a whole, and finally all the locking pieces 33 are in a locked state.

[0062] Specifically, the pressing portion 60 may be pressed down by a dedicated tool or a general press.

[0063] It should be noted that when all locking members 33 are unlocked in step S5, it is only necessary to push the pull rod 411 so that the pull rod 411 overcomes the elastic force of the first elastic member 412 and moves upward, and the tensioning head 413 leaves the tensioning assembly 42. The tensioning assembly 42 shrinks radially inward under the action of the second elastic member 421, thereby completing the unlocking.

[0064] The above embodiments are only to illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and modifications, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A motor core overall arrangement and positioning fixture, characterized in that: The motor core overall arrangement and positioning fixture comprises a bearing assembly, a lateral positioning assembly and a central positioning assembly, wherein: The bearing assembly includes a base and a plurality of outer limit members vertically spaced on the same circumference of the base, a vertically extending channel is formed between two adjacent outer limit members, and each of the outer limit members is provided with an avoidance through hole. The lateral positioning assembly can be lifted and mounted on the bearing assembly, and the lateral positioning assembly includes a chassis, a plurality of vertical members located on the same circumference are vertically arranged on the outer edge of the chassis, and at least one locking member is installed on each of the vertical members in a radial direction close to or away from the center of the chassis, and a limiting boss for supporting the iron core monomer is arranged on the inner side of the locking member, and all the locking members are located in the area surrounded by the plurality of outer limiting members, and the outer wall of the locking member and the inner wall of the outer limiting member have at least mutually matching locking surfaces to lock the locking member with the corresponding outer limiting member, and the bottom of each vertical member is clamped in one of the channels, and when the locking member is in a locked state, the locking member moves radially inward to limit the iron core monomer at the corresponding position on the outside, The center positioning assembly includes a tie rod assembly and a tensioning assembly, wherein the tie rod assembly is vertically mounted at the center of the chassis, and the tie rod assembly is at least configured to keep the tensioning assembly in an open state radially outwardly opened to limit the core monomer at the corresponding position on the inner side. When the motor core is arranged and positioned as a whole, all the core monomers are placed one by one in the space between the tensioning assembly and the locking piece, and then all the locking pieces are pressed down at the same time so that all the locking pieces are in a locked state. The core monomers at the corresponding positions are positioned through the cooperation of the locking pieces and the tensioning assembly.

2. The motor core overall arrangement and positioning jig according to claim 1, characterized in that: The motor core overall arrangement and positioning fixture also includes a limit ring, which is detachably arranged on the base and located at the periphery of the outer limit member. The limit ring is configured to support the bottom end of part or all of the vertical members to maintain the lateral positioning assembly at a specified height.

3. The motor core overall arrangement and positioning jig according to claim 1, characterized in that: The pull rod assembly includes a center tube, a pull rod and a first elastic member. The center tube is vertically fixed at the center of the chassis. The pull rod can be installed in the center tube in a liftable manner. A tensioning head is provided at the top end of the pull rod. The first elastic member is sleeved on the bottom end of the pull rod. The tensioning assembly is arranged between the tensioning head and the top end of the center tube. The first elastic member is configured to keep the pull rod in a low position so that the tensioning head abuts against the tensioning assembly, thereby radially expanding the tensioning assembly outward to limit the core monomer at the corresponding position on the inside.

4. The motor core overall arrangement and positioning jig according to claim 3, characterized in that: The tensioning assembly includes multiple tensioning blocks and a second elastic member, each of the tensioning blocks is arranged corresponding to a locking member, and each of the tensioning blocks is provided with a limiting groove. After all the tensioning blocks are arranged, the second elastic member is sleeved in the limiting grooves of all the tensioning blocks to gather all the tensioning blocks, and the inner wall of each tensioning block and the tensioning head have a mutually matching conical surface.

5. The motor core overall arrangement and positioning jig according to claim 4, characterized in that: The first elastic member is a coil spring, the inner hole of the center tube is provided with a step hole, the bottom end of the pull rod is provided with a positioning member, one end of the coil spring abuts against the step surface of the step hole, and the other end is limited by the positioning member so that the coil spring always maintains a downward force on the pull rod.

6. The motor core overall arrangement and positioning jig according to claim 1, characterized in that: A plurality of clamping parts are extended outward at equal intervals on the outer edge of the chassis, a vertical piece is vertically arranged at the end of each clamping part, and each clamping part is clamped in a corresponding channel.

7. The motor core overall arrangement and positioning jig according to claim 6, characterized in that: Two locking rods are arranged on the vertical member at intervals along the height direction. The two locking rods can reciprocate radially along the vertical member. The ends of the two locking rods close to the center are connected to the locking member, and the ends of the two locking rods away from the center are both covered with a third elastic member.

8. The motor core overall arrangement and positioning jig according to claim 5, characterized in that: The upper inner wall of the vertical member and the lower outer wall of the locking member are provided with mutually matching conical surfaces, the lower inner wall of the vertical member and the upper outer wall of the locking member are provided with mutually matching cylindrical surfaces, and the vertical member and the locking member are locked through the cylindrical surfaces.

9. The motor core integral arrangement and positioning jig according to claim 1, characterized in that: A positioning boss extending in the height direction is detachably mounted on the inner side wall of the locking member. When the locking member is in a locked state, the positioning boss is inserted into the groove of the core monomer.

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