Integrated stator circle closing clamping tool

Through the design of the integrated stator round clamping tool, the matching of the core positioning parts and the limiting parts and the resetting force of the spring seat assembly is used to achieve stable clamping of the core, solving the problems of the core's release and squirting during the round clamping process, and improving positioning accuracy.

CN223251469UActive Publication Date: 2025-08-22盈智热管理科技(嘉兴)有限公司
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Patent Information

Application Number
CN202422632001.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-30
Publication Date
2025-08-22
Estimated Expiration
2034-10-30

AI Technical Summary

Technical Problem

In the prior art, the stator winding of the water pump of a high-power electronic water pump of a automobile adopts thick wires and block winding, resulting in the iron core being easily disengaged from the fixture when the iron core is rounded, and the iron core tiles are scurried up and down when the circle is closed, and cannot be kept on the same plane.

Method used

An integrated stator round clamping tool is designed, including a fixture base, an iron core fixing seat, a push rod guide, a first baffle, a spring seat assembly and a push rod. Through the matching design of the first and second iron core positioning members and the limiting members, combined with the spring return force of the spring seat assembly, stable clamping of the iron core is achieved.

Benefits of technology

It improves the positioning accuracy of the iron core, solves the problem of the movement of the iron core when it is easy to get out of the fixture and the circle-combined, ensures that the iron core remains stable during the circle-combined process, and avoids the defect that the core surface is not on the same plane.

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Abstract

The utility model relates to the technical field of clamping tools, in particular to an integrated stator circle closing clamping tool which is characterized in that push rod guide pieces are arranged on two side walls of an iron core fixing seat; the first baffle is arranged at the end, away from the push rod guiding piece, of the jig base. The spring seat assembly is fixedly connected with the jig base and comprises a spring seat and a cam plate which is arranged above the spring seat and is connected with the spring seat in a relative displacement manner; one end of the push rod is slidably connected with the push rod guide piece, the other end of the push rod is in contact with the rolling bearing on the cam plate, and a second baffle is arranged at the end head of the end, connected with the push rod guide piece, of the push rod. The push rod pushes the second iron core positioning piece on the second baffle to be inserted into the dovetail groove of the iron core, the further positioning and limiting effects are achieved, meanwhile, the second iron core limiting piece is pressed on the end face of the iron core, the pressing and clamping effects are achieved, and the problems that the iron core is prone to disengaging from the jig, and an iron core block moves up and down in the circle closing process are solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of clamping tooling, in particular to an integrated stator circle clamping tooling. Background Art

[0002] With the development of new high-power electronic water pumps for automobiles, the stator winding of water pumps usually adopts the process of block winding with thick wire;

[0003] However, when using the block winding method with thick wire, the wire diameter is too thick, and the iron core will fall out of the jig when the circle is assembled, and the iron core blocks will move up and down when the circle is assembled, resulting in the iron core surfaces not being in the same plane after the circle is assembled. Therefore, a clamping tool that can stably clamp the iron core is needed. Utility Model Content

[0004] The purpose of this utility model is to solve the shortcomings of the prior art and provide an integrated stator circle clamping tool, comprising:

[0005] A fixture base, wherein the upper end surface of the fixture base is provided with an iron core fixing seat, and both side walls of the iron core fixing seat are provided with push rod guides;

[0006] a first baffle, provided on one end of the jig base away from the push rod guide, wherein the first baffle is provided with a first iron core positioning member and a first iron core limiting member;

[0007] a spring seat assembly fixedly connected to the fixture base, the spring seat assembly comprising a spring seat, and a cam plate disposed above the spring seat and connected to the spring seat for relative displacement;

[0008] A push rod, one end of which is slidably connected to the push rod guide, and the other end is in contact with the rolling bearing on the cam plate. A second baffle is provided at the end of the push rod connected to the push rod guide, and a second iron core positioning member and a second iron core limiting member are provided on the second baffle.

[0009] Furthermore, the push rod guide comprises a horizontal guide groove and an arc-shaped positioning groove, and the arc-shaped positioning groove is connected to an end of the horizontal guide groove close to the first baffle.

[0010] Furthermore, the first baffle includes a first bottom plate fixedly connected to the iron core fixing seat, a first prism provided at the midline of the upper end surface of the first bottom plate, and a first vertical plate provided at an end of the first bottom plate away from the push rod guide member, the first prism serving as the first iron core positioning member, and the first vertical plate serving as the first iron core limiting member;

[0011] The upper end surface of the first core limiting member is higher than the upper end surface of the first core positioning member;

[0012] The shape of the first core positioning member matches the shape of the dovetail slot.

[0013] Furthermore, the spring seat assembly includes a spring seat, a guide shaft and a cam plate provided above the spring seat;

[0014] One end of the guide shaft is provided with a limiting nut, and the end of the guide shaft without the limiting nut passes through the spring seat from the lower end surface of the spring seat and is fixedly connected to the cam plate;

[0015] One end of the spring of the spring seat which is not connected to the spring seat is fixedly connected to the cam plate.

[0016] Furthermore, guide pillars are provided on both sides of one end of the push rod connected to the fixture base, and the guide pillars can be slidably arranged in the push rod guide member, and the outer diameter of the guide pillars matches the groove width of the push rod guide member.

[0017] Furthermore, the second baffle includes a second bottom plate slidably connected to the iron core fixing seat, a second prism provided at the midline of the upper end surface of the second bottom plate, and a second vertical plate provided at an end of the second bottom plate away from the first baffle, the second prism serving as the second iron core positioning member, and the second vertical plate serving as the second iron core limiting member;

[0018] The push rod is connected to the second vertical plate;

[0019] The upper end surface of the second core limiting member is higher than the upper end surface of the second core positioning member;

[0020] The shape of the second core positioning member matches the shape of the dovetail slot.

[0021] Furthermore, the sum of the lengths of the first core positioning member and the second core positioning member is not greater than the length of the dovetail slot of the core.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. The first core positioning piece on the first baffle of the integrated stator circle clamping tool of the present invention is inserted into the dovetail groove of the core to roughly position the core, and the first core limiting piece on the first baffle plays an axial positioning role of the core, which can improve the positioning accuracy of the core.

[0024] 2. The push rod of the integrated stator closing and clamping tooling of the utility model pushes the second iron core positioning piece on the second baffle to insert into the dovetail slot of the iron core, which plays a further positioning and limiting role. At the same time, the second iron core limiting piece is pressed against the end face of the iron core, which plays a pressing and clamping role, solving the problem that the iron core is easy to fall out of the fixture and the iron core block moves up and down during closing.

[0025] 3. When the spring of the spring seat assembly of the integrated stator circle clamping tool of the utility model is reset, the cam plate connected to the spring can also maintain pressure on the push rod, thereby preventing the push rod from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 This is a schematic diagram of an integrated stator circle clamping tooling in the utility model in an open state;

[0028] Figure 2 This is a schematic diagram of the iron core structure of the utility model;

[0029] Figure 3 This is a schematic diagram of an integrated stator circle clamping tool with an iron core clamping state according to the present invention;

[0030] Figure 4 Schematic diagram of the forces acting on the iron core during the closing process.

[0031] Reference numerals

[0032] 1: fixture base;

[0033] 2: Iron core fixing seat;

[0034] 3: Push rod guide;

[0035] 31: horizontal guide groove; 32: arc-shaped positioning groove;

[0036] 4: First baffle;

[0037] 41: first bottom plate; 42: first core positioning member; 43: first core limiting member;

[0038] 5: Spring seat assembly;

[0039] 51: Spring seat; 52: Guide shaft; 53: Cam plate;

[0040] 6: Putting;

[0041] 7: Second baffle;

[0042] 71: second bottom plate; 72: second core positioning member; 73: second core limiting member;

[0043] 8: iron core;

[0044] 81: dovetail groove; 82: supporting surface; 83: pressing surface. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0046] See also Figure 1-4 The technical solution of an integrated stator circle clamping tool provided in this embodiment includes the following:

[0047] A fixture base 1, wherein an iron core fixing seat 2 is provided on the upper end surface of the fixture base 1, and push rod guides 3 are provided on both side walls of the iron core fixing seat 2;

[0048] A first baffle 4 is provided on the fixture base 1 at one end away from the push rod guide 3 , and a first iron core positioning member 42 and a first iron core limiting member 43 are provided on the first baffle 4 ;

[0049] A spring seat assembly 5 is fixedly connected to the fixture base 1, and the spring seat assembly 5 includes a spring seat 51, and a cam plate 53 disposed above the spring seat 51 and connected to the spring seat 51 for relative displacement;

[0050] A push rod 6, one end of which is slidably connected to the push rod guide 3, and the other end is in contact with the rolling bearing on the cam plate 53. A second baffle 7 is provided at the end of the push rod 6 connected to the push rod guide 3, and a second iron core positioning member 72 and a second iron core limiting member 73 are provided on the second baffle 7.

[0051] In a specific implementation, the iron core fixing seat 2 includes two limit plates, which are fixedly connected to the upper end surface of the jig base 1 so that the inner cavity forms a clamping space for the iron core 8. The second baffle 7 slides on the upper end surface of the jig base 1, and when the guide column on the push rod 6 slides to the leftmost side of the push rod guide 3, the second baffle 7 will not fall off the upper end surface of the jig base 1.

[0052] In a specific implementation, in order to prevent the push rod 6 from falling off, a limiting extension surface can be formed on the upper end surface of the limiting plate toward the inside to limit the push rod 6 and the upper end surface of the second bottom plate 71.

[0053] Specifically, the push rod guide 3 includes a horizontal guide groove 31 and an arcuate positioning groove 32. The arcuate positioning groove 32 is connected to the end of the horizontal guide groove 31 that is close to the first baffle 4. The end of the arcuate positioning groove 32 that is not connected to the horizontal guide groove 31 is located above the surface of the horizontal guide groove 31, and the center of the arcuate positioning groove 32 is also oriented upward from the horizontal guide groove 31.

[0054] Specifically, the first baffle 4 includes a first bottom plate 41 fixedly connected to the iron core fixing seat 2, a first prism provided at the midline of the upper end surface of the first bottom plate 41, and a first vertical plate provided at an end of the first bottom plate 41 away from the push rod guide 3, the first prism being the first iron core positioning member 42, and the first vertical plate being the first iron core limiting member 43;

[0055] The upper end surface of the first core limiting member 43 is higher than the upper end surface of the first core positioning member 42;

[0056] The shape of the first core positioning member 42 matches the shape of the dovetail slot 81 .

[0057] In the specific implementation, as shown in the attached Figure 2 As shown, the bottom of the iron core 8 of the present invention is provided with a dovetail groove 81 along the axis. The dovetail groove 81 is an inverted trapezoidal structure with a wide top and a narrow bottom. Figure 2 The rear side of the core 8 is the abutting surface 82 that contacts the first core limiting member 43 during installation. Figure 2 The front side surface of the iron core 8 is a pressing surface 83 pressed and squeezed by the second iron core limiting member 73 .

[0058] Specifically, the spring seat assembly 5 includes a spring seat 51, a guide shaft 52 and a cam plate 53 provided above the spring seat 51;

[0059] One end of the guide shaft 52 is provided with a limiting nut, and the end of the guide shaft 52 without the limiting nut passes through the lower end surface of the spring seat 51 and is fixedly connected to the cam plate 53;

[0060] The end of the spring of the spring seat 51 that is not in contact with the spring seat 51 is fixedly connected to the cam plate 53 .

[0061] The cam plate 53 is of the prior art, and mainly includes a plate surface, two fork ears symmetrically arranged above the plate surface, a rolling bearing arranged between the two fork ears, etc., so it is not described in detail here.

[0062] Specifically, guide columns are provided on both sides of one end of the push rod 6 connected to the fixture base 1 , and the guide columns can be slidably arranged in the push rod guide 3 , and the outer diameter of the guide columns matches the groove width of the push rod guide 3 .

[0063] Specifically, the second baffle 7 includes a second bottom plate 71 slidably connected to the iron core fixing seat 2, a second prism provided at the midline of the upper end surface of the second bottom plate 71, and a second vertical plate provided at an end of the second bottom plate 71 away from the first baffle 4. The second prism serves as the second iron core positioning member 72, and the second vertical plate serves as the second iron core limiting member 73.

[0064] The push rod 6 is linked to the second vertical plate;

[0065] The upper end surface of the second core limiting member 73 is higher than the upper end surface of the second core positioning member 72;

[0066] The shape of the second core positioning member 72 matches the shape of the dovetail groove 81 .

[0067] In a specific implementation, when the iron core 8 is in a clamped state, an upward thrust is generated on the push rod 6 under the action of the spring return force, so that the guide column of the limit push rod 6 is always at the top of the arc-shaped positioning groove 32 of the push rod guide 3, so that the force in the F1 direction generated by the iron core 8 during the circle closing process cannot push the push rod 6 to move to the left (only when the push rod 6 is pressed downward can it move from the arc-shaped positioning groove 32 to the horizontal guide groove 31), thereby limiting the ejection force of the iron core 8 in the F2 direction.

[0068] In a specific implementation, based on the inverted trapezoidal structure of the dovetail slot 81, when the first core positioning member 42 and the second core positioning member 72 are inserted into the dovetail slot 81, the core 8 can be limited not to face the dovetail slot 81. Figure 4 The F2 direction falls off.

[0069] Preferably, the width of the second baffle 7 is smaller than the width of the push rod 6 .

[0070] Specifically, the sum of the lengths of the first core positioning member 42 and the second core positioning member 72 is no greater than the length of the dovetail slot 81 of the core 8 .

[0071] The working principle or working process of the integrated stator circle clamping tool provided by the utility model is as follows:

[0072] Attach Figure 1 For example, when the tooling needs to be clamped, the push rod 6 is pressed down and pulled to the left. The push rod 6 moves downward and backward along the push rod guide 3, driving the second baffle 7 to move left along the fixture base 1, aligning the dovetail groove 81 of the iron core 8 with the first iron core positioning member 42, so that the abutting surface 82 of the iron core 8 is in contact with the first iron core limiting member 43, and then the push rod 6 is stopped and pushed to the right so that the guide post of the push rod 6 is placed in the upper right corner of the push rod guide 3. At this time, the second iron core positioning member 72 is inserted into the dovetail groove 81, and the second iron core limiting member 73 is pressed against the pressing surface 83 of the iron core 8 under the restoring force of the spring, completing the clamping.

[0073] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An integrated stator circle clamping tool, characterized in that: include: A fixture base, wherein the upper end surface of the fixture base is provided with an iron core fixing seat, and both side walls of the iron core fixing seat are provided with push rod guides; a first baffle, provided on one end of the jig base away from the push rod guide, wherein the first baffle is provided with a first iron core positioning member and a first iron core limiting member; a spring seat assembly fixedly connected to the fixture base, the spring seat assembly comprising a spring seat, and a cam plate disposed above the spring seat and connected to the spring seat for relative displacement; A push rod, one end of which is slidably connected to the push rod guide, and the other end is in contact with the rolling bearing on the cam plate. A second baffle is provided at the end of the push rod connected to the push rod guide, and a second iron core positioning member and a second iron core limiting member are provided on the second baffle.

2. The integrated stator circle clamping fixture according to claim 1, characterized in that: The push rod guide comprises a horizontal guide groove and an arc-shaped positioning groove, and the arc-shaped positioning groove is connected to an end of the horizontal guide groove close to the first baffle.

3. The integrated stator circle clamping fixture according to claim 1, characterized in that: The first baffle includes a first bottom plate fixedly connected to the iron core fixing seat, a first prism provided at the midline of the upper end surface of the first bottom plate, and a first vertical plate provided at an end of the first bottom plate away from the push rod guide member, the first prism serving as the first iron core positioning member, and the first vertical plate serving as the first iron core limiting member; The upper end surface of the first core limiting member is higher than the upper end surface of the first core positioning member; The shape of the first core positioning member matches the shape of the dovetail slot.

4. The integrated stator circle clamping fixture according to claim 1, characterized in that: The spring seat assembly includes a spring seat, a guide shaft and a cam plate arranged above the spring seat; One end of the guide shaft is provided with a limiting nut, and the end of the guide shaft without the limiting nut passes through the spring seat from the lower end surface of the spring seat and is fixedly connected to the cam plate; One end of the spring of the spring seat which is not connected to the spring seat is fixedly connected to the cam plate.

5. The integrated stator circle clamping fixture according to claim 1, characterized in that: Guide pillars are provided on both sides of one end of the push rod connected to the fixture base. The guide pillars can be slidably arranged in the push rod guide piece, and the outer diameter of the guide pillars matches the groove width of the push rod guide piece.

6. The integrated stator circle clamping fixture according to claim 1, characterized in that: The second baffle includes a second bottom plate slidably connected to the iron core fixing seat, a second prism provided at the midline of the upper end surface of the second bottom plate, and a second vertical plate provided at an end of the second bottom plate away from the first baffle, the second prism serving as the second iron core positioning member, and the second vertical plate serving as the second iron core limiting member; The push rod is connected to the second vertical plate; The upper end surface of the second core limiting member is higher than the upper end surface of the second core positioning member; The shape of the second core positioning member matches the shape of the dovetail slot.

7. The integrated stator circle clamping fixture according to claim 1, characterized in that: The sum of the lengths of the first core positioning member and the second core positioning member is no greater than the length of the dovetail slot of the core.