Unfolding type circle splicing mechanism

Abstract

An unfolded circle splicing mechanism comprises a support, at least two driving assemblies arranged on the support, a plurality of transmission assemblies arranged on the driving assemblies, a plurality of locking assemblies arranged on one sides of the transmission assemblies respectively, and a pressing cylinder arranged on one side of the locking assemblies. The transmission assembly comprises a first connecting rod, a second connecting rod correspondingly arranged on one side of the first connecting rod, a third connecting rod rotationally connected with the first connecting rod, a fourth connecting rod arranged on one side of the third connecting rod and a fifth connecting rod arranged on one side of the fourth connecting rod. The locking assembly comprises a containing block and a clamping strip rotationally connected with the containing block, and the unfolded circle splicing mechanism drives the transmission assembly to swing through the driving assembly and drives the locking assembly to swing. The mechanism is high in splicing precision, capable of saving manpower resources and suitable for flow line production.

Description

Technical Field

[0001] The utility model relates to the technical field of motor coil assembly, in particular to an expanded circle assembly mechanism. Background Art

[0002] The winding is formed by splicing multiple stators. In production operations, multiple stators are usually placed in a prototype mold for splicing. For example, Chinese patent CN202022119468.6 discloses a block-type motor stator integral circular assembly tool, including a center positioning column and multiple arc-shaped positioning blocks; the adjacent arc-shaped positioning blocks are connected together by rotation, and the multiple arc-shaped positioning blocks form a cylinder; the center positioning column is coaxially arranged with the cylinder surrounded by the multiple arc-shaped positioning blocks; a positioning cavity for positioning the stator body is formed between the center positioning column and the inner wall of the cylinder surrounded by the multiple arc-shaped positioning blocks; the number of arc-shaped positioning blocks corresponds to the number of stator blocks forming the stator body; the inner diameter of the arc-shaped positioning block matches the outer diameter of the stator body, and the outer diameter of the center positioning column matches the inner diameter of the stator body. The tool can position the stator body formed by stator splicing, but its positioning effect is not good. In the winding formed by such splicing, there is a gap between the stators, and the two ends of the stator are difficult to be flush, thereby reducing the splicing accuracy. Utility Model Content

[0003] In view of this, the utility model provides an expanded circle-joining mechanism to solve the above-mentioned problem.

[0004] A unfolded circular mechanism is used to splice a plurality of stators into a circular winding, wherein a strip groove is provided on one side of the stator, and a first step portion is provided at each end of the side of the stator having the strip groove. The unfolded circular mechanism comprises a bracket, at least two driving assemblies arranged on the bracket, a plurality of transmission assemblies arranged on the driving assemblies, a plurality of locking assemblies respectively arranged on one side of a plurality of the transmission assemblies, and a pressing cylinder arranged on one side of the locking assemblies. The transmission assembly comprises a first connecting rod, a second connecting rod correspondingly arranged on one side of the first connecting rod, a third connecting rod rotatably connected to the first connecting rod, a fourth connecting rod arranged on one side of the third connecting rod, and a fifth connecting rod arranged on one side of the fourth connecting rod. The locking assembly comprises a placement block, a clamping strip rotatably connected to the placement block, and a spring arranged at one end of the clamping strip. A vertical strip block matching the strip groove is provided on the side of the placement block away from the fifth connecting rod, and the strip groove is clamped on the strip block. A second step portion is respectively provided on both sides of the bar block, a third step portion is provided in the middle section of the clamping strip, and the second and third step portions are respectively abutted against the two first step portions on the stator. A locking groove is provided on the placement block, the bottom of the locking groove is rotatably connected to the clamping strip, one end of the clamping strip away from the locking groove is abutted against one end of the spring, and the other end of the spring is abutted against the fifth connecting rod.

[0005] Furthermore, the bracket has a hollow truncated cone, and a plurality of slots are spaced apart on the circumferential outer side wall of the hollow truncated cone.

[0006] Furthermore, the driving assembly includes at least two driving cylinders arranged on one side of the bracket, at least two long rods respectively arranged at the output ends of the two driving cylinders, and a disc arranged at one end of the long rods.

[0007] Furthermore, a plurality of the connecting blocks are spaced apart on the disc, and the plurality of the connecting blocks correspond to a plurality of the transmission components respectively.

[0008] Further, one end of the first connecting rod is rotatably connected to the driving assembly, and the other end is connected to the middle section of the fifth connecting rod. Two intervals on the middle section of the first connecting rod are rotatably connected to the third and fourth connecting rods respectively, one end of the third and fourth connecting rods is rotatably connected to the slot, and the other end is rotatably connected to the middle section of the second connecting rod and one end close to the driving assembly respectively, one end of the second connecting rod away from the driving assembly is rotatably connected to one end of the fifth connecting rod, and the other end of the fifth connecting rod is fixedly connected to the locking assembly.

[0009] Furthermore, the placement block is fixedly connected to an end of the fifth connecting rod away from the second connecting rod.

[0010] Furthermore, the pressing cylinder is in the shape of a hollow cylinder, and has a conical portion on one end portion of the pressing cylinder, and the circumferential outer side wall of the conical portion corresponds to the clamping strip.

[0011] Compared with the prior art, the unfolded circle-joining mechanism provided by the utility model drives the transmission assembly to swing through the driving assembly, and drives the locking assembly to swing, so that the stator, which has been secondarily positioned by the locking assembly, will be spliced ​​to form a circular winding when the locking assembly swings to the lowest point. The unfolded circle-joining mechanism has high splicing accuracy, saves human resources, and is suitable for assembly line production. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The present invention is a schematic structural diagram of an expanded circle-joining mechanism provided by the present invention.

[0013] Figure 2 Schematic diagram of the stator structure.

[0014] Figure 3 for Figure 1 A schematic diagram of the structure of a hollow truncated cone of an expanded circular mechanism.

[0015] Figure 4 for Figure 1 A schematic structural diagram of the transmission assembly of the unfolded circle-joining mechanism.

[0016] Figure 5 for Figure 1 A schematic structural diagram of a locking assembly of an expandable circle-joining mechanism.

[0017] Figure 6 for Figure 1 A schematic diagram of the structure of a cylinder pressing device of an expanded circle-making mechanism. DETAILED DESCRIPTION

[0018] The following is a further detailed description of the specific embodiments of the present invention. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.

[0019] like Figure 1As shown, it is a schematic diagram of the structure of the expandable circle-joining mechanism provided by the utility model. The expandable circle-joining mechanism includes a bracket 10, at least two driving assemblies 20 arranged on the bracket 10, a plurality of transmission assemblies 30 arranged on the driving assemblies 20, a plurality of locking assemblies 40 respectively arranged on one side of a plurality of the transmission assemblies 30, and a pressing cylinder 50 arranged on one side of the locking assembly 40. It can be imagined that the expandable circle-joining mechanism also includes some other functional modules, such as a power module, a screw module, etc., which are technologies well known to those skilled in the art and will not be described one by one here.

[0020] Please also read Figures 2 to 6 . It should be noted that the unfolded circular splicing mechanism is used to splice a plurality of stators 60 into a circular winding. An arc-shaped groove 61 and a convex strip 62 are respectively provided on both sides of the stator 60. The groove 61 on one stator 60 corresponds to and matches the convex strip 62 on the other stator 60, so that the two stators 60 are assembled together, and thus a plurality of stators 60 are fixedly spliced ​​into a circular winding. A strip groove 63 is provided on one side of the stator 60, and the strip groove 63 cooperates with the locking assembly 40, so that the stator 60 plays a positioning role in the horizontal direction. A first step portion 64 is respectively provided at both ends of the side surface of the stator 60 having the strip groove 63, and the first step portion 64 cooperates with the locking assembly 40, so that the stator 60 plays a secondary positioning function in the vertical direction. The specific cooperation between the stator 60 and the locking assembly 40 will be described below.

[0021] The bracket 10 is used to support various components so that they can be matched with each other, thereby completing the operation of splicing a plurality of stators 60 into a circle.

[0022] The bracket 10 has a hollow cone 11, and a plurality of slots 12 are spaced apart on the circumferential outer wall of the hollow cone 11. The slots 12 are used to cooperate with part of the transmission assembly 30 to complete the transmission assembly 30, and the specific cooperation will be described below.

[0023] The driving assembly 20 includes at least two driving cylinders 21 disposed on one side of the bracket 10 , at least two long rods 22 disposed at the output ends of the two driving cylinders 21 , and a disc 23 disposed at one end of the long rod 22 .

[0024] The long rod 22 is movably arranged through the bracket 10, and the driving cylinder 21 can drive the long rod 22 to move, thereby driving the disc 23 to reciprocate along the length direction of the long rod 22. A plurality of connecting blocks 24 are arranged on the disc 23 at intervals, and a plurality of the connecting blocks 24 correspond to a plurality of the slots 12. A plurality of the connecting blocks 24 are partially rotatably connected to a plurality of the transmission assemblies 30, thereby driving the transmission assemblies 30 to move, thereby driving the locking assembly 40 to complete the circle-making operation.

[0025] The transmission assembly 30 includes a first connecting rod 31 rotatably connected to the connecting block 24, a second connecting rod 32 correspondingly arranged on one side of the first connecting rod 31, a third connecting rod 33 rotatably connected to the first connecting rod 31, a fourth connecting rod 34 arranged on one side of the third connecting rod 33, and a fifth connecting rod 35 arranged on one side of the fourth connecting rod 34.

[0026] One end of the first connecting rod 31 is rotatably connected to the connecting block 24, and the other end is connected to the middle section of the fifth connecting rod 35. Two intervals on the middle section of the first connecting rod 31 are rotatably connected to the third and fourth connecting rods 33 and 34 respectively. One end of the third and fourth connecting rods 33 and 34 is rotatably connected to the slot 12, and the other end is rotatably connected to the middle section of the second connecting rod 32 and one end close to the driving assembly 20 respectively. One end of the second connecting rod 32 away from the driving assembly 20 is rotatably connected to one end of the fifth connecting rod 35, and the other end of the fifth connecting rod 35 is fixedly connected to the locking assembly 40. In this way, the end of the first connecting rod 31 close to the connecting block 24 reciprocates under the drive of the driving assembly 20, and the third and fourth connecting rods 33 and 34 swing around the slot 12 under the drive of the first connecting rod 31. Due to the principle of two points being in one line, the middle sections of the third and fourth connecting rods 33 and 34 are located at the same end, so that the third and fourth connecting rods 33 and 34 always remain in a parallel state. Similarly, the first and second connecting rods 31 and 32 will also remain in a parallel state. Since the middle sections of the third, fourth, and fifth connecting rods 33, 34, and 35 and the ends close to the second connecting rod 32 are respectively rotatably connected to the first and second connecting rods 31 and 32, the fifth connecting rod 35 will always be parallel to the third and fourth connecting rods 33 and 34 when it swings under the drive of the first and second connecting rods 31 and 32. As a result, several of the fifth connecting rods 35 swing around the corresponding slots 12, respectively, so that several of the transmission components 30 arranged at intervals form an open or closed state.

[0027] The locking assembly 40 includes a placement block 41 , a clamping strip 42 rotatably connected to the placement block 41 , and a spring 43 disposed at one end of the clamping strip 42 .

[0028] A vertical bar block 44 is provided on one side of the placement block 41 away from the fifth connecting rod 35 . The bar block 44 matches the bar groove 63 on the stator 60 . The bar groove 63 is clamped on the bar block 44 , thereby positioning the stator 60 in the horizontal direction.

[0029] A second step portion 45 is respectively formed on both sides of the bar block 44 , and the stator 60 is placed on the placement block 41 by abutting one of the first step portions 64 on the stator 60 against the second step portion 45 .

[0030] The placing block 41 is provided with a locking groove 46, the bottom of which is rotatably connected to the clamping strip 42, the end of the clamping strip 42 away from the locking groove 46 abuts against one end of the spring 43, and the other end of the spring 43 abuts against the fifth connecting rod 35. In this way, the clamping strip 42, under the action of the spring 43, has a thrust in a direction away from the fifth connecting rod 35. The middle section of the clamping strip 42 is provided with a third step portion 47, which matches another first step portion 64 on the stator 60, so that under the action of the spring 43, the third step portion 47 is clamped on the first step portion 64. The second and third step portions 45, 47 abut against the two first step portions 64 on the stator 60, respectively, so as to perform secondary positioning of the stator 60 in the vertical direction. The stator 60, which has been positioned twice, has greatly improved the splicing accuracy.

[0031] The placement block 41 is fixedly connected to an end of the fifth connecting rod 35 away from the second connecting rod 32 , so that the placement block 41 can swing along with the fifth connecting rod 35 under the drive of the driving assembly 20 .

[0032] The pressing cylinder 50 is a hollow cylinder, and has a conical portion 51 at one end thereof, and the circumferential outer wall of the conical portion 51 corresponds to the clamping strip 42 on the locking assembly 40. When a plurality of the placing blocks 41 are swung together to the splicing position, a plurality of the stators 60 are spliced ​​into a circular winding. When the pressing cylinder 50 is pressed down, the circumferential outer wall of the conical portion 51 abuts against the clamping strip 42, thereby pushing the clamping strip 42 close to one end of the spring 43, so that the clamping strip 42 swings around the bottom of the locking groove 46, and the third step portion 47 moves away from the stator 60, thereby unlocking and releasing the stator 60.

[0033] Compared with the prior art, the unfolded circle-joining mechanism provided by the utility model drives the transmission assembly 30 to swing through the driving assembly 20, and drives the locking assembly 40 to swing, so that the stator 60, which has been secondarily positioned by the locking assembly 40, will be spliced ​​to form a circular winding when the locking assembly 40 swings to the lowest point. The unfolded circle-joining mechanism has high splicing accuracy, saves human resources, and is suitable for assembly line production.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention are included in the scope of the claims of the present invention.

Claims

1. An expandable circle-joining mechanism, which is used to join a plurality of stators into a circular winding, a strip groove being provided on one side of the stator, and a first step portion being provided at each end of the side of the stator having the strip groove. The expandable circle-joining mechanism is characterized in that: the expandable circle-joining mechanism comprises a bracket, at least two driving assemblies arranged on the bracket, a plurality of transmission assemblies arranged on the driving assemblies, a plurality of locking assemblies respectively arranged on one side of a plurality of the transmission assemblies, and a pressing cylinder arranged on one side of the locking assembly, the transmission assembly comprises a first connecting rod, a second connecting rod correspondingly arranged on one side of the first connecting rod, a third connecting rod rotatably connected to the first connecting rod, and a fourth connecting rod arranged on one side of the third connecting rod. The locking assembly comprises a placing block, a clamping strip rotatably connected to the placing block, and a spring arranged at one end of the clamping strip. A vertical strip block matching the strip groove is arranged on the side of the placing block away from the fifth connecting rod. The strip groove is clamped on the strip block. A second step portion is respectively provided on both sides of the strip block. A third step portion is provided in the middle section of the clamping strip. The second and third step portions are respectively abutted against the two first step portions on the stator. A locking groove is provided on the placing block. The bottom of the locking groove is rotatably connected to the clamping strip. One end of the clamping strip away from the locking groove abuts against one end of the spring, and the other end of the spring abuts against the fifth connecting rod.

2. The unfolded circle-making mechanism according to claim 1, characterized in that: The bracket is provided with a hollow truncated cone, and a plurality of slots are arranged at intervals on the circumferential outer side wall of the hollow truncated cone.

3. The unfolded circle-making mechanism according to claim 1, characterized in that: The driving assembly comprises at least two driving cylinders arranged on one side of the bracket, at least two long rods respectively arranged at the output ends of the two driving cylinders, and a disc arranged at one end of the long rod.

4. The unfolded circle-forming mechanism according to claim 3, characterized in that: A plurality of connection blocks are arranged on the disc at intervals, and the plurality of connection blocks correspond to the plurality of transmission components respectively.

5. The unfolded circle-making mechanism according to claim 2, characterized in that: One end of the first connecting rod is rotatably connected to the driving assembly, and the other end is connected to the middle section of the fifth connecting rod. Two intervals on the middle section of the first connecting rod are rotatably connected to the third and fourth connecting rods respectively. One end of the third and fourth connecting rods is rotatably connected to the slot, and the other end is rotatably connected to the middle section of the second connecting rod and one end close to the driving assembly respectively. One end of the second connecting rod away from the driving assembly is rotatably connected to one end of the fifth connecting rod, and the other end of the fifth connecting rod is fixedly connected to the locking assembly.

6. The unfolded circle-making mechanism according to claim 1, characterized in that: The placement block is fixedly connected to an end of the fifth connecting rod away from the second connecting rod.

7. The expandable circle-making mechanism according to claim 1, characterized in that: The pressing cylinder is in the shape of a hollow cylinder, and has a conical portion on one end portion of the pressing cylinder, and the circumferential outer side wall of the conical portion corresponds to the clamping strip.

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