Three-phase terminal positioning tool

Abstract

The invention discloses a three-phase terminal positioning tool which comprises a base ring used for clamping and fixing a stator end copper wire, a side clamping assembly used for clamping and fixing a connecting terminal and a terminal clamping assembly used for clamping and fixing a three-phase terminal. The three welding parts of the three-phase terminal, the connecting terminal and the end part of the stator copper wire of the electronic coil can be clamped and positioned almost simultaneously, and the situation that after the three-phase terminal is clamped, deviation is generated when the connecting terminal (or the end part of the stator copper wire) is clamped, and positioning and clamping need to be carried out again after dismounting is avoided. And the subsequent welding efficiency is greatly improved.

Description

Technical Field

[0001] The invention belongs to the field of stator processing equipment, and in particular relates to a three-phase terminal positioning tool. Background Art

[0002] In the manufacturing process of the motor, the connection between the three-phase terminals and the connecting terminals of the electronic coil and the ends of the stator copper wire is a key step. The stator copper wire is wound in the core slot of the stator by a winding machine. Usually, after the winding is completed, the ends of the stator copper wire will leave enough length for subsequent connections. The three-phase terminals are used to connect the power supply and the three-phase winding of the motor. Each terminal corresponds to a phase (U, V, W) of the motor winding. The connecting terminals are used to establish electrical connections between the windings to ensure the correct flow of current inside the motor. When welding, align the ends of the stator copper wire with the corresponding three-phase terminals and connecting terminals, and then use welding tools (such as spot welding machines, soldering) to ensure that the connection is firm and reliable.

[0003] During this process, the three-phase terminals, connecting terminals and stator copper wire ends of the electronic coil need to be clamped by external equipment to ensure accuracy and stability during welding.

[0004] In the prior art, the invention patent with publication number CN111725954A and titled "Stator Winding and Three-Phase Motor" discloses a lead fixing tool, comprising an annular body and a clamping component, wherein the annular body is provided with a positioning cavity for accommodating the stator, the clamping component is arranged on the annular body, and the clamping component clamps the stator in the positioning cavity; and further comprises a lead fixing component, wherein the lead fixing component is arranged on the annular body, and the lead fixing component positions the stator lead and the welding part on the lead;

[0005] The stator is clamped synchronously by multiple clamping components, which effectively avoids deformation of the clamped stator, improves stability, and reduces positioning errors. The leads of the stator and the welding parts on the leads can be quickly positioned by the lead fixing components, which can not only accurately ensure the position and length of the lead wires, but also improve the assembly efficiency of the stator.

[0006] However, in the above technical solution, it is necessary to distribute and reinforce the positions of the leads, etc., which makes the positioning work more complicated. Summary of the invention

[0007] In view of the above defects, the present invention provides a three-phase terminal positioning tool, comprising a base ring for clamping and fixing the copper wire at the end of the stator, a side clamp assembly for clamping and fixing the connecting terminal, and a terminal clamp assembly for clamping and fixing the three-phase terminal;

[0008] The outer ring of the base ring is equipped with rollers distributed at equal distances for clamping the outer ring of the stator copper wire end. The base ring is fixed with a sliding component II through supports on both sides. The sliding component II is used for movably connecting the terminal clamping component;

[0009] The terminal clamping assembly includes a terminal positioning ring connected to the sliding assembly II, the upper surface of the terminal positioning ring is provided with grooves for placing the U, V, and W terminals of the three-phase terminal and is covered by a terminal gland and then fixed by a knob buckle, and the top of the terminal positioning ring is also equipped with two pressing parts for pressing and tightening the two ends of the terminal gland, and the pressing part includes a sliding assembly I and a toggle clamp located at the sliding assembly I for fixing after moving;

[0010] There are two side clamp assemblies installed at symmetrical ends of the base ring. The side clamp assemblies clamp and fix the two ends of the connection terminal after the side clamp push rods at the ends close to each other are extended and retracted.

[0011] Furthermore, the sliding assembly II also includes two second slide rails, and the two ends of the terminal positioning ring are respectively clamped on the two second slide rails to realize the sliding function, and the two ends of the second slide rails are also equipped with side plates for limiting position;

[0012] A positioning block is fixed on the outward end of the second slide rail, a positioning groove is provided on the positioning block, a plug hole corresponding to the positioning groove is provided on the outward end of the terminal positioning ring, and the terminal positioning ring is fixed to the second slide rail through a window-type plunger.

[0013] Furthermore, the groove is engaged with the terminal cover, and three circular holes are provided at the groove, which are respectively compatible with the U, V, and W terminals of the three-phase terminals. A terminal locating pin is installed at each circular hole, and the terminal locating pin is fixedly installed at the bottom of the terminal cover. The three knob buckles respectively pass through the reserved holes at the terminal cover and are inserted into the three circular holes. When the terminal cover is fixed on the groove, the terminal locating pin pre-positions the three-phase terminal. After the terminal cover is fixed, the knob buckle further limits and fixes the three-phase terminal through the circular hole.

[0014] Furthermore, the knob pull buckle includes a knob plunger, a conical column, a plunger fixing block and a spring cover, the plunger fixing block is fixedly mounted on the terminal cover, the knob plunger is fixedly mounted on the plunger fixing block, the end of the knob plunger is integrally formed with the conical column, the spring cover is fixedly mounted on the bottom of the plunger fixing block, and the conical column is placed inside the spring cover.

[0015] Furthermore, the sliding assembly I includes a first sliding rail and an I-shaped slider that is clamped together. The first sliding rail and the I-shaped slider are both provided with corresponding upper and lower plunger grooves, and the two are limited by a ball head plunger.

[0016] Further, the side clamp assembly comprises a side clamp fixing block mounted on the base ring, an L-shaped fixing plate is fixed to the side wall of the side clamp fixing block, and a knob plunger penetrating the inner wall of the fixing plate is installed between the side clamp fixing block and the fixing plate;

[0017] A side clamp sleeve integrally formed with the side clamp fixing block is fixed on the top, and an inner groove of the side clamp sleeve near one end of the knob plunger is hinged with a side clamp push handle through a first hinge pin, and a side clamp push rod is clamped with the inner groove of the side clamp sleeve, and the side clamp push rod is linked to the side clamp push handle through a side clamp connecting rod, and both ends of the side clamp connecting rod are respectively hinged to the side clamp push rod and the side clamp push handle through a second hinge pin, and an opening is provided on the side of the side clamp push rod for the side clamp connecting rod to swing.

[0018] Furthermore, two symmetrical handles are fixed to the outer ring of the base ring.

[0019] Furthermore, one end of the side clamp push rod away from the side clamp connecting rod clamps the connecting terminal through the provided side clamp groove, and the entrance of the side clamp groove is a gradually converging inclined surface.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The three welding parts of the electronic coil, namely the three-phase terminal, the connecting terminal and the stator copper wire end, can be clamped and positioned almost simultaneously. After the three-phase terminal is clamped, there will be no deviation when the connecting terminal (or the stator copper wire end) is clamped, and the need for dismantling and repositioning and clamping will not occur, which greatly improves the efficiency of subsequent welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the present invention after being installed on the stator coil.

[0023] Figure 2 This is a structural schematic diagram of angle 1 in the present invention.

[0024] Figure 3 This is a schematic diagram of the structure of Angle 2 in the present invention.

[0025] Figure 4 It is a schematic structural diagram of the terminal clamping assembly in the present invention.

[0026] Figure 5 It is a schematic diagram of the installation position of the three-phase terminal in the present invention.

[0027] Figure 6 It is a schematic diagram of the explosion structure of the pressing part in the present invention.

[0028] Figure 7 It is a schematic structural diagram of the side clamp assembly in the present invention.

[0029] Figure 8It is an exploded schematic diagram of the side clamp assembly in the present invention.

[0030] Fig. 9 This is a schematic diagram of the stator coil after welding.

[0031] Fig.10 It is a schematic diagram of the structure of the knob and buckle in the present invention.

[0032] Fig.11 This is an exploded schematic diagram of the side clamp assembly of the present invention from another perspective.

[0033] Fig.12 It is a schematic diagram of the installation of the knob buckle and the terminal gland in the present invention.

[0034] In the figure: 1. base ring; 101. roller; 102. support; 103. sliding assembly II; 1031. second slide rail; 1032. positioning block; 1033. positioning groove; 1034. window plunger; 104. handle; 2. side clamp assembly; 202. side clamp fixing block; 203. fixing plate; 204. knob plunger; 205. side clamp sleeve; 206. first hinge pin; 207. side clamp push handle; 208. side clamp push rod; 209. side clamp connecting rod; 210. second hinge pin; 211 , side clamp groove; 3, terminal clamping assembly; 304, terminal positioning ring; 3041, groove; 3042, knob pull buckle; 3042a, knob plunger; 3042b, cone column; 3042c, plunger fixing block; 3042d, spring cover; 3043, terminal pressure cover; 3044, round hole; 3045, terminal positioning pin; 305, sliding assembly I; 3051, first slide rail; 3052, elbow clamp; 3053, I-shaped slider; 3054, plunger groove; 3055, ball head plunger. DETAILED DESCRIPTION

[0035] In order to facilitate the understanding of the present invention, the device of the present invention will be described more fully below with reference to the relevant drawings. Embodiments of the device are given in the drawings. However, the device 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 present invention more thorough and comprehensive.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Example

[0038] like Figure 1-3As shown, this embodiment provides a three-phase terminal positioning tool, including a base ring 1 for clamping and fixing the stator end copper wire, a side clamp assembly 2 for clamping and fixing the connection terminal, and a terminal clamp assembly 3 for clamping and fixing the three-phase terminal;

[0039] In detail, in this embodiment, the base ring 1 is used to clamp the outer ring of the stator copper wire end by installing 5 equally spaced rollers 101 on the outer ring. The outer ring of the base ring 1 is also fixed with two symmetrical handles 104 for subsequent manual holding. The base ring 1 is fixed with a sliding component II103 through the supports 102 on both sides. The sliding component II103 is used to movably connect the terminal clamping component 3. The terminal clamping component 3 includes a terminal positioning ring 304 connected to the sliding component II103;

[0040] like Figures 4 to 5 As shown, the upper surface of the terminal positioning ring 304 is provided with a groove 3041 for placing the U, V, and W terminals of the three-phase terminal, and the top of the groove 3041 is covered by a matching terminal cover 3043. The groove 3041 is provided with three round holes 3044 respectively matching the U, V, and W terminals of the three-phase terminal. The terminal cover 3043 is equipped with a terminal positioning pin 3045 for pre-positioning near each round hole 3044, and three knob buckles 3042 are also provided. The three knob buckles 3042 respectively penetrate the reserved holes at the terminal cover 3043 and are inserted into the three round holes 3044. When the terminal cover 3043 is fixed on the groove 3041, the terminal positioning pin 3045 pre-positions the three-phase terminal. After the terminal cover 3043 is fixed, the knob buckle 30424 further limits and fixes the three-phase terminal through the round hole 3044.

[0041] Specifically, Fig.10 As shown, the knob pull buckle 3042 includes a knob plunger 3042a, a cone column 3042b, a plunger fixing block 3042c and a spring cover 3042d, the plunger fixing block 3042c is fixedly mounted on the terminal gland 3043, the knob plunger 3042a is fixedly mounted on the plunger fixing block 3042c, the end of the knob plunger 3042a is integrally formed with the cone column 3042b, and the spring cover 3042d is fixedly mounted on the plunger fixing block 304 2c bottom, the cone column 3042b is placed inside the spring cover 3042d. When fixing the three-phase terminal, the head of the cone column 3042b is first placed in the round hole 3044. When the head of the cone column 3042b passes through the three-phase terminal and extends into the round hole 3044, the spring cover 3042d also extends into the three-phase terminal hole. The knob plunger 3042a is rotated to move the cone column 3042b downward to prop up the spring cover 3042d, thereby fixing the three-phase terminal.

[0042] The top of the terminal positioning ring 304 is also equipped with two pressing parts for pressing and tightening the two ends of the terminal cover 3043. Specifically, the pressing part includes a sliding component 1305 and a toggle clamp 3052 located at the sliding component 1305 for fixing after moving. Figure 6 As shown, the sliding assembly 1305 includes a first slide rail 3051 and an I-shaped slider 3053 connected thereto. The first slide rail 3051 and the I-shaped slider 3053 are both provided with corresponding plunger grooves 3054, and a ball plunger 3055 is inserted between the two to achieve position limiting.

[0043] like Figure 4 As shown, the sliding assembly II103 also includes two second slide rails 1031, and the two ends of the terminal positioning ring 304 are respectively clamped on the two second slide rails 1031 to realize the sliding function, and the two ends of the second slide rails 1031 are also equipped with side plates for preventing slipping, and the outward end of the second slide rail 1031 is fixed with a positioning block 1032, and the positioning block 1032 is provided with a positioning groove 1033, and the outward end of the terminal positioning ring 304 is provided with a jack corresponding to the positioning groove 1033, and the terminal positioning ring 304 is fixed to the second slide rail 1031 by a window-type plunger 1034;

[0044] like Figure 7-8 As shown, there are two side clamp assemblies 2, which are installed at the symmetrical ends of the base ring 1. In detail, the side clamp assembly 2 includes a Z-shaped side clamp fixing block 202 installed on the base ring 1, and an L-shaped fixing plate 203 is fixed to the side wall of the side clamp fixing block 202. A knob plunger 204 penetrating the inner wall of the fixing plate 203 is installed between the side clamp fixing block 202 and the fixing plate 203, and the rear plunger is extended out of the top of the fixing plate 203 by rotating to limit the side clamp push handle 207;

[0045] like Fig.11As shown, a side clamp sleeve 205 integrally formed therewith is fixed on the top of the side clamp fixing block 202, and an inner groove of the side clamp sleeve 205 close to one end of the knob plunger 204 is hinged with a side clamp handle 207 through a first hinge pin 206. The hinged manner is used to realize the subsequent bending and rotating function, and a slidably connected side clamp push rod 208 is clamped in the inner groove of the side clamp sleeve 205, and the side clamp push rod 208 is linked with the side clamp push handle 207 through a side clamp connecting rod 209. The two ends of the side clamp connecting rod 209 are respectively hinged with the side clamp push rod 208 and the side clamp push handle 207 through a second hinge pin 210. The side of the side clamp link 209 is provided with an opening for the side clamp link 209 to swing, that is, after the side clamp push handle 207 is pried open, the side clamp push handle 207 pushes the side clamp link 209 to rotate, and then extends out of the opening from a state parallel to the side clamp push rod 208 to a state forming an angle, that is, the side clamp push rod 208 is driven and pulled to move synchronously. It should be noted that the end of the side clamp push rod 208 away from the side clamp link 209 clamps the connecting terminal through the opened side clamp groove 211, and the entrance of the side clamp groove 211 is a gradually converging inclined surface, which is convenient for the insertion of the docking terminal.

[0046] The three-phase terminal positioning tool described in this embodiment, when performing welding work, first, before the positioning tool is sleeved on the stator end, the terminal positioning ring 304 is first slid along the second slide rail 1031 so that the window-type plunger 1034 cooperates with the positioning groove 1033 to fix the terminal positioning ring 304 in a suitable position, and then the three-phase terminals are fixed one by one between the terminal pressure cover 3043 and the terminal positioning ring 304. In this positioning process, the three-phase terminals are aligned with the circular holes 3044 in the groove 3041 one by one, and the terminal pressure cover 3043 is pressed on the three-wire terminal. At this time, the terminal positioning pin 3045 performs preliminary positioning on the three-phase terminal, and the pressing part presses and fixes the terminal pressure cover 3043, and then the knob buckle 3042 is extended through the terminal pressure cover 3043 into the circular hole 3044 in the groove 3041 to complete the fixation of the three-phase terminal;

[0047] Secondly, place the connection terminal between the two side clamp assemblies 2, manually move the side clamp push handle 207 so that the two side clamp push rods 208 can clamp the connection terminal, and the knob plunger 204 limits the position of the side clamp push handle 207 to ensure that the two side clamp push rods 208 can stably clamp the connection terminal;

[0048] After the three-phase terminal and the connecting terminal are fixed, the base ring 1 is put on the end of the stator so that the three-phase terminal and the connecting terminal are embedded between the end copper wires, thereby completing the welding work;

[0049] After the welding work is completed, the clamping part cancels the limit on the terminal cover 3043, removes the window-type plunger 1034, and moves the terminal positioning ring 304 away from the center of the stator. Then, the knob plunger 204 cancels the limit on the side clamp push handle 207, and pushes the side clamp push handle 207 back, so that the side clamp push rod 208 retracts into the side clamp sleeve 205, thereby releasing the limit on the connecting terminal, and finally the entire positioning tool is removed from the end of the stator.

[0050] It should be noted that the reference numeral A in the accompanying drawings represents a three-phase terminal, and B represents a connecting terminal.

[0051] It should be noted that the structure described in the present invention can be implemented in a variety of different forms and is not limited to the described embodiments. Any equivalent transformations made by ordinary technicians in this field using the contents of the present invention description and drawings, or directly or indirectly applied to other related technical fields, such as the loading and unloading of other items, are included in the protection scope of the present invention.

Claims

1. A three-phase terminal positioning tool, characterized in that: It includes a base ring for clamping and fixing the copper wire at the end of the stator, a side clamp assembly for clamping and fixing the connecting terminal, and a terminal clamp assembly for clamping and fixing the three-phase terminal; The outer ring of the base ring is equipped with rollers distributed at equal distances for clamping the outer ring of the stator copper wire end. The base ring is fixed with a sliding component II through supports on both sides. The sliding component II is used for movably connecting the terminal clamping component; The terminal clamping assembly includes a terminal positioning ring connected to the sliding assembly II, the upper surface of the terminal positioning ring is provided with grooves for placing the U, V, and W terminals of the three-phase terminal and is covered by a terminal gland and then fixed by a knob buckle, and the top of the terminal positioning ring is also equipped with two pressing parts for pressing and tightening the two ends of the terminal gland, and the pressing part includes a sliding assembly I and a toggle clamp located at the sliding assembly I for fixing after moving; There are two side clamp assemblies installed at symmetrical ends of the base ring. The side clamp assemblies clamp and fix the two ends of the connection terminal after the side clamp push rods at the ends close to each other are extended and retracted.

2. A three-phase terminal positioning tool as claimed in claim 1, characterized in that: The sliding assembly II also includes two second slide rails, and the two ends of the terminal positioning ring are respectively clamped on the two second slide rails to realize the sliding function, and the two ends of the second slide rails are also equipped with side plates for limiting position; A positioning block is fixed on the outward end of the second slide rail, a positioning groove is provided on the positioning block, a plug hole corresponding to the positioning groove is provided on the outward end of the terminal positioning ring, and the terminal positioning ring is fixed to the second slide rail through a window-type plunger.

3. A three-phase terminal positioning tool as claimed in claim 1, characterized in that: The groove is engaged with the terminal cover, and three circular holes are provided at the groove, which are respectively matched with the U, V, and W terminals of the three-phase terminals. A terminal locating pin is installed at each circular hole, and the terminal locating pin is fixedly installed at the bottom of the terminal cover. The three knob buckles respectively pass through the reserved holes at the terminal cover and are inserted into the three circular holes. When the terminal cover is fixed on the groove, the terminal locating pin pre-positions the three-phase terminal. After the terminal cover is fixed, the knob buckle further limits and fixes the three-phase terminal through the circular hole.

4. A three-phase terminal positioning tool as claimed in claim 3, characterized in that: The knob pull buckle includes a knob plunger, a conical column, a plunger fixing block and a spring cover. The plunger fixing block is fixedly installed on the terminal cover, the knob plunger is fixedly installed on the plunger fixing block, the end of the knob plunger is integrally formed with the conical column, the spring cover is fixedly installed on the bottom of the plunger fixing block, and the conical column is placed inside the spring cover.

5. A three-phase terminal positioning tool as claimed in claim 1, characterized in that: The sliding assembly I includes a first sliding rail and an I-shaped sliding block that is clamped together. The first sliding rail and the I-shaped sliding block are both provided with corresponding upper and lower plunger grooves, and the two are limited by a ball head plunger.

6. A three-phase terminal positioning tool as claimed in claim 1, characterized in that: The side clamp assembly comprises a side clamp fixing block mounted on the base ring, an L-shaped fixing plate is fixed to the side wall of the side clamp fixing block, and a knob plunger penetrating the inner wall of the fixing plate is installed between the side clamp fixing block and the fixing plate; A side clamp sleeve integrally formed with the side clamp fixing block is fixed on the top, and an inner groove of the side clamp sleeve near one end of the knob plunger is hinged with a side clamp push handle through a first hinge pin, and a side clamp push rod is clamped with the inner groove of the side clamp sleeve, and the side clamp push rod is linked to the side clamp push handle through a side clamp connecting rod, and both ends of the side clamp connecting rod are respectively hinged to the side clamp push rod and the side clamp push handle through a second hinge pin, and an opening is provided on the side of the side clamp push rod for the side clamp connecting rod to swing.

7. A three-phase terminal positioning tool as claimed in claim 1, characterized in that: Two symmetrical handles are also fixed on the outer ring of the base ring.

8. A three-phase terminal positioning tool as claimed in claim 6, characterized in that: The end of the side clamp push rod away from the side clamp connecting rod clamps the connecting terminal through the side clamp groove, and the entrance of the side clamp groove is a gradually converging inclined surface.

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