Thread clamping and pulling device

Abstract

The utility model relates to the technical field of flat wire motor manufacturing provides a kind of wire clamping device and wire drawing device, including installation base, two wire clamping blocks, operating component and at least one set of elastic top pressure component;Installation base has the recessed cavity passing through its top surface and bottom surface;Wire clamping block is used to clamp and loosen flat wire, two wire clamping blocks can be respectively installed in recessed cavity along a clamping direction movably;Operating component includes the main part of being set in the upper of installation base and the two inclined guide portions for driving two wire clamping blocks to move, two inclined guide portions all extend to recessed cavity from main part and with two wire clamping blocks respectively one-to-one correspondence;Elastic top pressure component is used to elastically push the wire clamping block down when operating component drops, and at least one set of elastic top pressure component is connected main part and wire clamping block respectively.Compared with prior art, the gap in the vertical direction with flat wire can be eliminated to ensure that wire clamping block and flat wire are more closely fitted.

Description

Technical Field

[0001] This utility model relates to the technical field of flat wire motor manufacturing, and in particular to a wire clamping device and a wire pulling device. Background Technology

[0002] Flat copper wire motors have significant advantages over traditional round copper wire motors in terms of efficiency, power density, heat dissipation, size, and weight. The flat wire design allows for lighter, smaller motors with higher energy density.

[0003] Currently, corrugated flat wire stators are mainly used in high-efficiency, high-power-density motors, such as high-speed motors, electric vehicle drive motors, and wind turbines. The structure of a corrugated flat wire stator employs a wavy flat wire winding. This winding has a flat cross-section, allowing it to wrap more tightly around the iron core, thus reducing the voids in the stator core and improving the motor's efficiency and power density. In traditional corrugated flat wire stators, the flat copper wire is formed using a clamping mechanism to hold the flat wire and feed it into the forming machine. This clamping mechanism includes two opening and closing jaws for gripping the flat wire. However, a large gap remains between the jaws and the flat wire, preventing a tight fit and resulting in poor clamping stability. Utility Model Content

[0004] One of the objectives of this utility model is to provide a wire clamping device to solve the technical problem in the prior art where there is a large gap between the wire clamping mechanism and the flat wire, making it impossible to fit tightly and resulting in poor clamping stability.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a wire clamping device, comprising: a mounting base having a cavity extending through its top and bottom surfaces; two wire clamping blocks for clamping and releasing flat wires, the two wire clamping blocks being movable in the cavity along a clamping direction; an operating component comprising a main body disposed above the mounting base and two inclined guides for driving the two wire clamping blocks to move, the two inclined guides extending from the main body into the cavity and corresponding to the two wire clamping blocks respectively; and at least one set of elastic pressing components for elastically pushing the wire clamping blocks down when the operating component descends, the at least one set of elastic pressing components being connected to the main body and the wire clamping blocks respectively.

[0006] The technical solution of this utility model has the following advantages: The wire clamping device includes a mounting base, wire clamping blocks, an operating component, and an elastic pressing assembly. The operating component includes a main body and two inclined guides for driving the two wire clamping blocks to move. The elastic pressing assembly is used to elastically push the wire clamping blocks down when the operating component descends. In this way, when the operating component descends, it can drive the two wire clamping blocks to move towards each other and clamp the flat wire located in the two wire clamping blocks. At the same time, under the action of the elastic pressing assembly, the wire clamping blocks are elastically pushed down to realize that the wire clamping blocks move inward and downward. In this way, each wire clamping block can abut against the top surface and side surface of the flat wire respectively, thereby eliminating the gap between the wire clamping block and the flat wire in the vertical direction, so as to ensure that the wire clamping block and the flat wire fit more tightly and improve the clamping stability.

[0007] In some embodiments, at least one set of elastic pressing components includes a guide slider, a connecting shaft, and an elastic element; the guide slider is disposed in the cavity, each clamping block is connected to the guide slider and can move relative to the guide slider in the clamping direction, one end of the connecting shaft is fixed to the guide slider, the other end is connected to the main body and can move relative to the main body along the axial direction of the connecting shaft, and the elastic element is disposed between the main body and the guide slider.

[0008] In some embodiments, the connecting shaft has a first end and a second end opposite to each other, the guide slider is provided with a receiving groove for the first end to be inserted, the first end has a limiting protrusion protruding outward from the side wall of the first end; the main body has a connecting hole for the second end to move, and the outer end of the second end extends beyond the connecting hole.

[0009] In some embodiments, the elastic element is a spring, which is mounted on the connecting shaft.

[0010] In some embodiments, a guide groove is provided on the side wall of the middle portion of the clamping block for the guide slider to slide, and the guide groove extends along the clamping direction.

[0011] In some embodiments, two inclined guides are symmetrically arranged on the centerline of the main body along the clamping direction, and each clamping block has a groove for the corresponding inclined guide to be inserted and slid.

[0012] In some embodiments, each wire clamping block has a wire clamping groove on the side surface facing the other wire clamping block, and the wire clamping grooves of the two wire clamping blocks form a clamping channel for clamping flat wires.

[0013] In some embodiments, a drive assembly is provided on the mounting base. The drive assembly includes a bracket fixed on the mounting base, a connecting rod attached to the bracket via a pivot, and a cylinder that causes the connecting rod to revolve around the pivot. The cylinder is rotatably mounted on the mounting base, and one end of the connecting rod is connected to the cylinder, while the other end is connected to the main body of the operating component.

[0014] Another objective of this invention is to provide a wire-pulling device that solves the technical problem of poor clamping stability in the prior art.

[0015] To achieve this objective, the present invention provides a wire pulling device, comprising a base, two movable platforms movably mounted on the base, and a driving device capable of driving the movable platforms to move, wherein each movable platform is provided with the aforementioned wire clamping device.

[0016] The wire pulling device, using the aforementioned wire clamping device, ensures a tighter fit between the wire clamping block and the flat wire, thus improving clamping stability.

[0017] In some embodiments, the drive device includes a rack fixed to a base, a gear meshing with the rack, and a motor that drives the gear to rotate and is supported on a moving platform. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the wire clamping device provided in an embodiment of the present utility model; Figure 2 for Figure 1 A cross-sectional view of the AA plane; Figure 3 for Figure 1 A cross-sectional view of the BB plane; Figure 4 This is an exploded view of the wire clamping device provided in an embodiment of the present invention; Figure 5 This is a three-dimensional schematic diagram of the wire pulling device and wire feeding bracket provided in the embodiment of this utility model; Figure 6 This is a three-dimensional schematic diagram of the wire clamping device in the initial position of the wire pulling device provided in this embodiment of the utility model; Figure 7 for Figure 6 A sectional view of the C-plane; Figure 8 This is a three-dimensional schematic diagram of the wire clamping device in the wire feeding position in the wire pulling device provided in this embodiment of the utility model.

[0019] Explanation of main component symbols 100-Wire clamping device; 10-Mounting base; 11-Cavity; 12-Limiting baffle; 20-Wire clamping block; 21-Guide groove; 22-Slide groove; 23-Wire clamping groove; 24-Clamping channel; 30-Operating component; 31-Main body; 311-Connecting hole; 312-Connecting ear; 32-Angled guide; 40-Elastic pressing assembly; 41-Guide slider; 411-Accommodating groove; 412-Through hole; 42-Connecting... 421-First end; 422-Second end; 423-Limiting protrusion; 43-Elastic element; 50-Limiting frame; 60-Drive assembly; 61-Bracket; 62-Connecting rod; 63-Cylinder; 200-Wire pulling device; 201-Base; 202-Moving platform; 203-Drive device; 2031-Rack; 2032-Gear; 2033-Motor; 300-Wire carrier; 101-Flat wire. Detailed Implementation

[0020] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the implementation of this utility model will be described in detail below with reference to the specific accompanying drawings.

[0022] For ease of description, the terms "front," "rear," "left," "right," "up," and "down" used below are consistent with the front, rear, left, right, up, and down directions of the accompanying drawings, but do not limit the structure of this utility model.

[0023] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not indicate a limitation of quantity, but rather indicate the presence of at least one.

[0024] like Figures 1 to 4As shown, the wire clamping device 100 provided in this embodiment includes a mounting base 10, two wire clamping blocks 20, an operating component 30, and at least one set of elastic pressing components 40. The mounting base 10 has a cavity 11 extending through its top and bottom surfaces. The wire clamping blocks 20 are used to clamp and release the flat wire 101, and the two wire clamping blocks 20 are respectively movably mounted in the cavity 11 along a clamping direction D1. The operating component 30 includes a main body 31 that is vertically and vertically disposed above the mounting base 10 and two inclined guides 32 for driving the two wire clamping blocks 20 to move. The two inclined guides 32 extend from the main body 31 into the cavity 11 and correspond one-to-one with the two wire clamping blocks 20. The elastic pressing components 40 are used to elastically push the wire clamping blocks 20 down when the operating component 30 descends, and at least one set of elastic pressing components 40 is respectively connected to the main body 31 and the wire clamping blocks 20.

[0025] The aforementioned wire clamping device 100 includes a mounting base 10, wire clamping blocks 20, an operating component 30, and an elastic pressing assembly 40. The operating component 30 includes a main body 31 and two inclined guides 32 for driving the two wire clamping blocks 20 to move. The elastic pressing assembly 40 is used to elastically push the wire clamping blocks 20 down when the operating component 30 descends. In this way, when the operating component 30 descends, it can drive the two wire clamping blocks 20 to move towards each other and clamp the flat wire 101 located in the two wire clamping blocks 20. At the same time, under the action of the elastic pressing assembly 40, the wire clamping blocks 20 are elastically pushed down to realize that the wire clamping blocks 20 move inward and downward. In this way, each wire clamping block 20 can abut against the top surface and side surface of the flat wire 101 respectively, thereby eliminating the gap between the wire clamping block 20 and the flat wire 101 in the vertical direction, so as to ensure that the wire clamping block 20 and the flat wire 101 fit more tightly.

[0026] See Figures 1 to 4 The wire clamping device 100 provided in this embodiment includes a mounting base 10, a wire clamping block 20, an operating component 30, and an elastic pressing component 40. The wire clamping block 20, the operating component 30, and the elastic pressing component 40 are all supported on the mounting base 10.

[0027] The mounting base 10 has a recess 11 that extends through the top and bottom surfaces of the mounting base 10. The wire clamping block 20 and the elastic pressing assembly 40 are both disposed within this recess 11. The wire clamping block 20 is used to clamp and release the flat wire 101 (a wire with a rectangular cross-section, the interior of which is metal wire, hereinafter referred to as flat wire 101). The wire clamping block 20 is movable within the recess 11 along a clamping direction D1 (D1 direction shown in the figure, hereinafter referred to as clamping direction D1). The operating component 30 is vertically mounted on the mounting base 10 (along a direction perpendicular to the bottom surface of the mounting base 10). The operating component 30 includes a main body 31 and an inclined guide 32 connected to the main body 31. The main body 31 is located above the recess 11 of the mounting base 10. The inclined guide 32 extends from the main body 31 into the recess 11 and is connected to the wire clamping block 20. During lifting and lowering, the inclined guide 32 can be driven to move along the clamping direction D1. The elastic pressing assembly 40 is used to elastically push the clamping block 20 downward when the operating component 30 descends. The elastic pressing assembly 40 is connected to the main body 31 and the clamping block 20. In this embodiment, the number of clamping blocks 20 is not limited to two, and the two clamping blocks 20 are arranged in the clamping direction D1. The number of inclined guide portions 32 of the operating component 30 is not limited to two, and both inclined guide portions 32 extend from the main body into the cavity 11 and correspond one-to-one with the two clamping blocks 20. The number of elastic pressing assemblies 40 is not limited to two sets, and the two sets of elastic pressing assemblies 40 correspond one-to-one with the two clamping blocks 20. Each set of elastic pressing assemblies 40 is connected to the corresponding main body 31 and the corresponding clamping block 20. In this way, when the operating component 30 descends, the clamping block 20 descends. When the operating component 30 descends, it can drive the two clamping blocks 20 to move towards each other and clamp the flat wire 101 located in the two clamping blocks 20. At the same time, under the action of the elastic pressing component 40, the clamping blocks 20 are elastically pushed down to achieve the clamping blocks 20 moving inward (i.e. towards the other clamping block 20) ​​and downward (downward in the figure). In this way, each clamping block 20 can abut against the top surface and side surface of the flat wire 101 respectively, thereby eliminating the gap between the clamping blocks 20 and the flat wire 101 in the vertical direction, so as to ensure that the clamping blocks 20 and the flat wire 101 fit more tightly.

[0028] See Figures 2 to 4The elastic pressing assembly 40 provided in this embodiment includes a guide slider 41, a connecting shaft 42, and an elastic element 43. The guide slider 41 is disposed in the cavity 11. Each clamping block 20 is connected to the guide slider 41 and can move relative to the guide slider 41 in the clamping direction D1. One end of the connecting shaft 42 is fixed to the guide slider 41, and the other end is connected to the main body 31 and can move relative to the main body 31 along the axial direction of the connecting shaft 42. The elastic element 43 is disposed between the main body 31 and the guide slider 41. In this embodiment, the guide slider 41 is vertically and elliptically disposed in the cavity 11. Each clamping block 20 is connected to the guide slider 41 and can move relative to the guide slider 41 in the clamping direction D1. The clamping block 20 and the guide slider 41 cannot move relative to each other in the direction perpendicular to the bottom surface of the mounting base 10. One end of the connecting shaft 42 is fixed to the guide slider 41, and the other end is connected to the main body 31 and can move relative to the main body 31 along the axial direction of the connecting shaft 42 when the operating component 30 is lowered. The operating component 30 is provided with an anti-detachment fastener not shown in the figure. The anti-detachment fastener is, but is not limited to, a nut. The elastic element 43 is disposed between the main body 31 and the guide slider 41. The elastic element 43 elastically abuts against the main body 31 and the guide slider 41 of the operating component 30 respectively. After the operating component 30 descends, it presses the elastic element 43 and generates an elastic pushing force that pushes against the main body 31 and the guide slider 41 of the operating component 30 respectively. It can be understood that after the operating component 30 descends (i.e., is pressed down), the upper end of the main body 31 (the upper end in the figure) moves downward (the lower end in the figure) and pushes and compresses the elastic element 43. The elastic element 43 then generates an elastic pushing force to push the guide slider 41 and drive the connecting shaft 42 and the wire clamping block 20 to move downward together. When the operating component 30 rises, its main body 31 will pull the upper end of the connecting shaft 42 to move upward to reset, so that the wire clamping block 20 separates from the flat wire 101.

[0029] In particular, the mounting base 10 has a limiting baffle 12 protruding from the bottom of the side wall of the cavity 11 to limit the downward movement of the guide slider 41. The mounting base 10 is also connected to a limiting frame 50 to limit the upward movement of the clamping block 20, thereby limiting the clamping block 20 and the guide slider 41 in the cavity 11.

[0030] See Figure 3 and Figure 4The connecting shaft 42 provided in this embodiment has a first end 421 and a second end 422 opposite to each other. The guide slider 41 is provided with a receiving groove 411 for the first end 421 to be inserted. The first end 421 has a limiting protrusion 423 protruding outward from the side wall of the first end 421. The main body 31 has a connecting hole 311 for the second end 422 to move. The outer end of the second end 422 extends beyond the connecting hole 311. In this embodiment, the receiving groove 411 is located on the bottom surface of the guide slider 41. The guide slider 41 has a through hole 412 through which the connecting shaft 42 passes and communicates with the receiving groove 411. The first end 421 of the connecting shaft 42 is disposed in the receiving groove 411, and the outer end face of the first end 421 abuts against the clamping block 20. The first end 421 has a limiting protrusion 423 for restricting the movement of the connecting shaft 42 toward the main body 31. The diameter of the limiting protrusion 423 is larger than the diameter of the through hole 412, thereby restricting the first end 421 in the guide slider 41. A connecting lug 312 is formed on the side wall of the main body 31, and a connecting hole 311 is located on the connecting lug 312. A threaded portion is provided on the outer wall of the second end 422, and an anti-loosening nut (not shown) is connected to the threaded portion. The anti-loosening nut is located on the side of the connecting lug 312 away from the guide slider 41.

[0031] See Figures 2 to 4 In this embodiment, the elastic element 43 is, but is not limited to, a spring. The elastic element 43 is mounted on the connecting shaft 42. The two ends of the elastic element 43 abut against the guide slider 41 and the connecting ear 312, respectively. In this way, after the operating component 30 is pressed down, the elastic element 43 is deformed and the guide slider 41 and the clamping block 20 move downward.

[0032] See Figure 4 In this embodiment, a guide groove 21 is provided on the side wall of the middle part of the clamping block 20 for the guide slider 41 to slide. The guide groove 21 extends along the clamping direction D1 and penetrates the two surfaces of the clamping block 20. In this way, under the limitation of the guide groove 21, the clamping block 20 and the guide slider 41 can only move relative to each other in the clamping direction D1.

[0033] See Figure 2 In this embodiment, two inclined guides 32 are symmetrically arranged on the center line of the main body 31 along the clamping direction D1. Each clamping block 20 has a groove 22 for the corresponding inclined guide 32 to be inserted and slid. Each inclined guide 32 extends obliquely from the main body 31 toward the bottom surface of the mounting base 10 and toward the direction away from the other inclined guide 32. In this way, with the cooperation of the inclined guide 32 and the groove 22, the lifting and lowering of the inclined guide 32 can drive the two clamping blocks 20 to close and move away at the same time.

[0034] See Figure 2 and Figure 4In this embodiment, each wire clamping block 20 has a wire clamping groove 23 on the side facing the other wire clamping block 20. The wire clamping groove 23 is located on the bottom surface of the side of the wire clamping block 20 closest to the other wire clamping block 20 and passes through the two end faces of the wire clamping block 20 respectively. The wire clamping grooves 23 of the two wire clamping blocks 20 form a clamping channel 24 for clamping the flat wire 101. Under the control of the operating component 30, the two wire clamping blocks 20 move in the center, so that the clamping channel 24 shrinks and clamps the flat wire 101 in the clamping channel 24.

[0035] See Figures 1 to 4 In this embodiment, a drive assembly 60 is provided on the mounting base 10. The drive assembly 60 includes a bracket 61 fixed on the mounting base 10, a connecting rod 62 pivotally connected to the bracket 61 via a pivot, and a cylinder 63 that causes the connecting rod 62 to revolve around the pivot. The cylinder 63 is rotatably mounted on the mounting base 10. One end of the connecting rod 62 is connected to the cylinder 63, and the other end is connected to the main body 31 of the operating component 30.

[0036] See Figures 5 to 8 The wire pulling device 200 provided in this embodiment includes a base 201, two movable platforms 202 movably mounted on the base 201, and a driving device 203 capable of driving the movable platforms 202 to move. Each movable platform 202 is provided with the aforementioned wire clamping device 100.

[0037] from Figure 5 As can be seen, in this embodiment, the wire pulling device 200 has a wire carrier 300 on one side along the width direction of the base 201. A translation and lifting drive mechanism (not shown) is provided at the bottom of the wire carrier 300, which can drive the wire carrier 300 to move and lift along the width direction of the base 201. Two moving platforms 202 are arranged along the length direction of the base 201 and can move relative to the base 201 along this length direction. One end of the base 201 is the wire inlet end, which connects to the equipment in the previous process. Thus, in the flat... After the wire 101 enters from the inlet end, the wire clamping device 100 on the moving platform 202 that is farther away from the inlet end clamps the wire end of the flat wire 101 and moves it a predetermined distance away from the inlet end. The other wire clamping device 100 on the other moving platform 202 clamps the wire end and places the flat wire 101 on the wire carrier 300. After the wire carrier 300 is filled with a predetermined number of flat wires 101, the flat wire 101 is sent into the forming equipment (not shown) for stamping.

[0038] See Figure 7In this embodiment, the drive device 203 includes a rack 2031 fixed on the base 201, a gear 2032 meshing with the rack 2031, and a motor 2033 that drives the gear 2032 to rotate and is supported on the moving platform 202. Each moving platform 202 is equipped with a motor 2033, and the output shaft of the motor 2033 is equipped with a gear 2032 meshing with the rack 2031. It can be understood that the transmission mechanism using the gear 2032 and rack 2031 has the advantages of high-precision transmission, long transmission distance, and high transmission speed.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wire clamping device, characterized in that, include: The mounting base has a recessed cavity extending through its top and bottom surfaces; Two wire clamping blocks are used to clamp and release the flat wire, and the two wire clamping blocks are respectively movable in the cavity along a clamping direction; The operating components include a main body that is vertically and flexibly disposed above the mounting base and two inclined guides for driving the two clamping blocks to move. The two inclined guides extend from the main body into the cavity and correspond one-to-one with the two clamping blocks respectively. as well as At least one set of elastic pressing components is used to elastically push the clamping block down when the operating component descends, and at least one set of the elastic pressing components are respectively connected to the main body and the clamping block.

2. The wire clamping device according to claim 1, characterized in that, At least one set of the elastic pressing assembly includes a guide slider, a connecting shaft, and an elastic element; the guide slider is disposed in the cavity, each clamping block is connected to the guide slider and can move relative to the guide slider in the clamping direction, one end of the connecting shaft is fixed to the guide slider, the other end is connected to the main body and can move relative to the main body along the axial direction of the connecting shaft, and the elastic element is disposed between the main body and the guide slider.

3. The wire clamping device according to claim 2, characterized in that, The connecting shaft has a first end and a second end opposite to each other. The guide slider is provided with a receiving groove for the first end to be inserted into. The first end has a limiting protrusion that protrudes outward from the side wall of the first end. The main body has a connecting hole for the second end to move, and the outer end of the second end extends beyond the connecting hole.

4. The wire clamping device according to claim 2, characterized in that, The elastic element is a spring, and the elastic element is mounted on the connecting shaft.

5. The wire clamping device according to claim 2, characterized in that, A guide groove is provided on the side wall of the middle part of the clamping block for the guide slider to slide, and the guide groove extends along the clamping direction.

6. The wire clamping device according to any one of claims 1 to 5, characterized in that, The two inclined guides are symmetrically arranged on the center line of the main body along the clamping direction, and each clamping block has a groove for the corresponding inclined guide to be inserted and slide.

7. The wire clamping device according to any one of claims 1 to 5, characterized in that, Each of the wire clamping blocks has a wire clamping groove on the side surface facing the other wire clamping block, and the wire clamping grooves of the two wire clamping blocks form a clamping channel for clamping the flat wire.

8. The wire clamping device according to any one of claims 1 to 5, characterized in that, The mounting base is provided with a drive assembly, which includes a bracket fixed on the mounting base, a connecting rod attached to the bracket via a pivot, and a cylinder that causes the connecting rod to revolve around the pivot. The cylinder is rotatably mounted on the mounting base, and one end of the connecting rod is connected to the cylinder and the other end is connected to the main body of the operating component.

9. A wire pulling device, comprising a base, two movable platforms movably mounted on the base, and a driving device capable of driving the movable platforms to move, characterized in that, Each mobile platform is provided with a clamping device as described in any one of claims 1 to 8.

10. The wire-pulling device according to claim 9, characterized in that, The drive device includes a rack fixed on the base, a gear meshing with the rack, and a motor that drives the gear to rotate and is supported on the moving platform.

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