Adjustable transformer primary terminal automatic crimping equipment

Abstract

The invention discloses an adjustable automatic crimping device for primary terminals of a transformer, which relates to the technical field of transformer terminal crimping, and comprises a workbench, a driving structure arranged on the workbench, a crimping seat arranged on the workbench and a crimping structure arranged on the workbench, wherein the driving structure drives the crimping structure to reciprocate toward the crimping seat, the crimping structure connecting the seat, a first crimping column and a second crimping column arranged at the lower end of the connecting seat, wherein the first crimping column and the second crimping column respectively correspond to different positions of the primary terminal on the crimping seat, and the upper end of the connecting seat is fixed to the telescopic end of the driving structure. The structure adopts an automated machine to crimp the primary terminal, which can be precisely controlled and is suitable for crimping primary terminals of various types of transformers, and the crimping efficiency and yield rate are significantly improved.

Description

Technical Field

[0001] The invention relates to the technical field of transformer terminal crimping, and in particular to an adjustable transformer primary terminal automatic crimping device. Background Art

[0002] The mutual inductor used in the power system is a special transformer that transmits the high voltage and high current information of the power grid to the metering, measuring instruments, relay protection and automatic devices on the low voltage and low current secondary side. It is a connecting element between the primary system and the secondary system. Its primary winding is connected to the power grid, and the secondary winding is connected to the measuring instruments, protection devices, etc. The mutual inductor cooperates with the measuring instruments and metering devices to measure the voltage, current and electric energy of the primary system; cooperates with the relay protection and automatic devices to form electrical protection and automatic control of various faults in the power grid. The performance of the mutual inductor directly affects the accuracy of measurement and metering of the power system and the reliability of the operation of the relay protection device.

[0003] During the assembly and production of the primary terminal of the transformer, the primary terminal is generally pressed into the transformer housing by hand or with simple tools. During crimping, uniform force cannot be guaranteed, which often causes deformation or even damage of the primary terminal, resulting in low assembly efficiency and high production costs. In addition, the crimping force cannot be accurately controlled and the primary terminal cannot be guaranteed to be crimped in place, resulting in the inability to improve the yield rate. Summary of the invention

[0004] In order to solve the above problems, the present invention provides an adjustable automatic crimping device for primary terminals of a transformer, which adopts automated machinery to crimp the primary terminals, can be precisely controlled, is suitable for crimping primary terminals of transformers of various models, and significantly improves the crimping efficiency and yield rate.

[0005] The technical solution adopted by the present invention is to provide an adjustable automatic crimping device for the primary terminal of a transformer, including a workbench, a driving structure arranged on the workbench, a crimping seat arranged on the workbench and a crimping structure arranged on the workbench, wherein the driving structure drives the crimping structure to reciprocate toward the crimping seat, and the crimping structure includes a connecting seat, a first crimping column and a second crimping column arranged at the lower end of the connecting seat, wherein the first crimping column and the second crimping column respectively correspond to different positions of the primary terminal on the crimping seat, and the upper end of the connecting seat is fixed to the telescopic end of the driving structure.

[0006] The crimping structure also includes a clamping seat arranged on one side of the connecting seat and a third crimping column arranged on the clamping seat. The clamping seat is a C-shaped structure, and the clamping seat is fixed to one side of the connecting seat by means of its opening. The first crimping column, the second crimping column and the third crimping column all correspond to different positions of the primary terminal on the crimping seat.

[0007] The driving structure includes a crimping cylinder and a fixing plate, wherein the fixing plate is an inverted T-shaped structure and a triangular reinforcing plate is arranged on the outside of the fixing plate, and the crimping cylinder is fixed on the inside of the fixing plate with the telescopic end facing downward and fixed to the crimping structure.

[0008] The crimping seat includes a seat body, a first limit plate and a second limit plate arranged at the upper end of the seat body, the upper end of the seat body is provided with a mounting groove adapted to the transformer housing and a limit groove adapted to the primary terminal, one side of the limit groove is tangent to the mounting groove, the first limit plate is arranged on the seat body and is adjacent to the mounting groove and the limit groove at the same time, the second limit plate is arranged in the limit groove and fits on the inner wall of the tangent side of the limit groove and the mounting groove.

[0009] The crimping seat also includes a turntable and a driving motor. The turntable is arranged on a workbench and has a plurality of seat bodies arranged in an annular manner on its upper end surface. The lower end of the crimping structure corresponds to the seat body. The turntable has the freedom of rotation by means of the driving motor.

[0010] It also includes a material unloading structure, which includes a bracket arranged on a workbench, a vertical moving unit arranged on the bracket, a lateral moving unit arranged on the vertical moving unit, and a manipulator arranged on the lateral moving unit. The bracket is arranged on one side of the crimping seat, the vertical moving unit drives the lateral moving unit to reciprocate up and down, the lateral moving unit drives the manipulator to reciprocate horizontally, and the manipulator is arranged toward the seat body.

[0011] The vertical moving unit includes a vertical frame in a C-shaped structure vertically fixed on the upper end of the bracket and a vertical telescopic cylinder fixed on the upper end of the vertical frame. The output end of the vertical telescopic cylinder passes through the outer wall of the vertical frame and extends into the opening of the vertical frame and is connected to the horizontal moving unit.

[0012] The transverse moving unit includes a transverse frame arranged horizontally and in a C-shaped structure, a transverse telescopic cylinder arranged on the outside of the transverse frame, a vertical slider and a vertical slide rail arranged on the back of the transverse frame in a C-shaped structure. The transverse telescopic cylinder is arranged outside the transverse frame and the telescopic end passes through the outer wall of the transverse frame and extends into the transverse frame. The vertical slide rail is fixed on the vertical moving unit, and the back of the transverse frame is slidably connected to the vertical slide rail with the help of the vertical slider. The transverse frame reciprocates along the vertical slide rail with the help of the vertical moving unit.

[0013] A fixed seat, a transverse slider with a C-shaped structure and a transverse slide rail are arranged on the inner side of the manipulator in sequence. The manipulator is fixed on the outer side of the fixed seat and one end of the fixed seat is connected to the telescopic end of the transverse moving unit. The transverse slider is slidably engaged with the transverse slide rail fixed on the transverse moving unit. The manipulator is driven by the transverse moving unit to perform horizontal reciprocating motion along the transverse slide rail.

[0014] It also includes a material unloading unit, which includes a support plate arranged on the workbench and a material channel fixed to the upper end of the support plate. The cross-section of the material channel is a U-shaped structure and the outer side is tilted downward. The upper end of the material channel corresponds to the robot.

[0015] The beneficial effects of the present invention are:

[0016] 1. The automated crimping equipment of the present invention can accurately control the crimping distance, and crimp the primary terminal at three points through the first crimping column, the second crimping column, and the third crimping column, so that the primary terminal is evenly stressed, avoiding deformation and damage.

[0017] 2. The turntable type crimping seat can hold multiple primary terminals to be crimped at the same time. When in use, you only need to manually put the primary terminal into the correct position on the transformer housing, and then put it into the seat body. The crimping structure can automatically crimp the primary terminal and the turntable can rotate automatically to realize automatic crimping. The crimping efficiency and crimping success rate are significantly improved, which greatly reduces the labor intensity.

[0018] 3. The mounting groove and the limit groove on the seat body are used to place and limit the transformer housing. The first limit plate and the second limit plate are used to limit the primary terminal and guide the primary terminal during crimping, further avoiding the problem of deformation or even damage of the primary terminal during crimping.

[0019] 4. Through the cooperation of the horizontal moving unit, the vertical moving unit and the manipulator, the transformer that has been crimped on the seat body is unloaded. It is only necessary to manually put the transformer and the primary terminal into the seat body. The crimping, conversion and unloading can all be automatically completed by the present invention, which effectively greatly improves the crimping efficiency of the transformer primary terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the crimping structure;

[0022] Figure 3 It is a schematic diagram of the seat structure;

[0023] Figure 4 It is a schematic diagram of the structure of the vertical moving unit;

[0024] Figure 5 It is a schematic diagram of the structure of the lateral movement unit.

[0025] In the accompanying drawings, 1, workbench, 2, connecting seat, 3, first crimping column, 4, second crimping column, 5, clamping seat, 6, third crimping column, 7, crimping cylinder, 8, fixed plate, 9, triangular reinforcement plate, 10, seat body, 11, first limit plate, 12, second limit plate, 13, mounting groove, 14, limit groove, 15 turntable, 16, drive motor, 17, bracket, 18, manipulator, 19, vertical frame, 20, vertical telescopic cylinder, 21, horizontal frame, 22, horizontal telescopic cylinder, 23, vertical slider, 24, vertical slide rail, 25, fixed seat, 26, horizontal slider, 27, horizontal slide rail, 28, support plate, 29, material channel, 30, terminal plug, 31, terminal bracket. DETAILED DESCRIPTION

[0026] like Figure 1-5 As shown, the present invention provides an adjustable automatic crimping device for primary terminals of a transformer, comprising a workbench 1, a driving structure arranged on the workbench 1, a crimping seat arranged on the workbench 1 and a crimping structure arranged on the workbench 1, wherein the driving structure drives the crimping structure to reciprocate toward the crimping seat, the crimping structure comprises a connecting seat 2, a first crimping column 3 and a second crimping column 4 arranged at the lower end of the connecting seat 2, the first crimping column 3 and the second crimping column 4 respectively correspond to different positions of the primary terminal on the crimping seat, and the upper end of the connecting seat 2 is fixed to the telescopic end of the driving structure.

[0027] The primary terminal includes a plug and an L-shaped or Z-shaped terminal bracket 31 arranged in the middle and upper part of the side of the terminal plug 30. When crimping, the lower end of the terminal plug 30 needs to be inserted into the slot at the center position inside the transformer housing. The slot is deep, and it is difficult to quickly and accurately insert it into place manually or with the help of small tools. In this structure, the crimping seat is used to place and limit the transformer housing and the primary terminal to be crimped. The driving structure drives the crimping structure to move up and down. When the crimping structure moves downward, the first crimping column 3 and the second crimping column 4 simultaneously crimp the terminal plug 30 and the terminal bracket 31, and press the terminal plug 30 accurately and quickly into the slot to complete the crimping, which greatly improves the crimping efficiency and accuracy. At the same time, the primary terminal is crimped at multiple points at the same time, avoiding the problem of damage caused by uneven force during crimping of the primary terminal.

[0028] like Figure 1-2 As shown, the crimping structure also includes a socket 5 arranged on one side of the connecting socket 2 and a third crimping column 6 arranged on the socket 5. The socket 5 is a C-shaped structure, and the socket 5 is fixed to one side of the connecting socket 2 by means of its opening. The first crimping column 3, the second crimping column 4 and the third crimping column 6 all correspond to different positions of the primary terminal on the crimping socket.

[0029] During crimping, a third crimping column 6 is added, and force is applied to the primary terminal at the same time, so that the primary terminal can be evenly stressed, further avoiding deformation and damage of the primary terminal. Since the terminal bracket 31 of the primary terminal is extended longer, a clamping seat 5 is added to fix the third crimping column 6, and the position of the third crimping column 6 can be adjusted through the clamping seat 5. Without significantly increasing the volume of the crimping structure, all-round crimping of the primary terminal can be achieved.

[0030] like Figure 1 As shown, the driving structure includes a crimping cylinder 7 and a fixed plate 8. The fixed plate 8 is an inverted T-shaped structure and a triangular reinforcing plate 9 is arranged on the outside of the fixed plate 8. The crimping cylinder 7 is fixed on the inside of the fixed plate 8 with the telescopic end facing downward and fixed to the crimping structure.

[0031] The crimping cylinder 7 is vertically fixed on the workbench 1 by means of a fixing plate 8, with its telescopic end facing downward, and the fixing plate 8 is increased in strength and force bearing capacity by means of a triangular reinforcing plate 9.

[0032] like Figure 3 As shown, the crimping seat includes a seat body 10, a first limiting plate 11 and a second limiting plate 12 arranged at the upper end of the seat body 10, and the upper end of the seat body 10 is provided with a mounting groove 13 adapted to the transformer housing and a limiting groove 14 adapted to the primary terminal, one side of the limiting groove 14 is tangent to the mounting groove 13, the first limiting plate 11 is arranged on the seat body 10 and is adjacent to the mounting groove 13 and the limiting groove 14 at the same time, and the second limiting plate 12 is arranged in the limiting groove 14 and fits on the inner wall of the tangent side of the limiting groove 14 and the mounting groove 13.

[0033] The mounting groove 13 and the limiting groove 14 hold and limit the transformer housing to ensure that the transformer housing will not shake after being subjected to force. The first limiting plate 11 and the second limiting plate 12 form an L-shaped structure and are arranged at intervals. The first limiting plate 11 and the second limiting plate 12 are both provided with chamfers at the upper ends. After being placed in the transformer housing, the terminal bracket 31 is limited between the first limiting plate 11, the second limiting plate 12 and the transformer housing to guide and limit the primary terminal during crimping, and the chamfer can facilitate insertion, further avoiding the problem of deformation and damage of the primary terminal after being subjected to force. At the same time, the inner sides of the first limiting plate 11 and the second limiting plate 12 fit with the side of the inserted transformer housing, further avoiding the problem of tilting and shaking of the transformer housing after being subjected to force.

[0034] like Figure 1 As shown, the crimping seat also includes a turntable 15 and a driving motor 16. The turntable 15 is arranged on the workbench 1 and has a plurality of seat bodies 10 arranged in a ring shape on its upper end surface. The lower end of the crimping structure corresponds to the seat body 10. The turntable 15 is driven by the driving motor 16 and has the freedom of rotation.

[0035] A plurality of seat bodies 10 are arranged in a ring shape on the turntable 15, which can simultaneously prevent a plurality of transformer housings and primary terminals to be crimped. As the turntable 15 rotates, each seat body 10 circulates through the lower end of the crimping structure. Whenever passing through, the crimping structure reciprocates up and down with the help of the driving structure to crimp the primary terminal on the seat body. The degree of automation is high, the crimping efficiency is greatly improved, and the labor intensity of manual labor is greatly reduced.

[0036] like Figure 1 As shown, it also includes a material unloading structure, which includes a bracket 17 arranged on the workbench 1, a vertical moving unit arranged on the bracket 17, a lateral moving unit arranged on the vertical moving unit, and a manipulator 18 arranged on the lateral moving unit. The bracket 17 is arranged on one side of the crimping seat, the vertical moving unit drives the lateral moving unit to reciprocate up and down, the lateral moving unit drives the manipulator 18 to reciprocate horizontally, and the manipulator 18 is arranged toward the seat body 10.

[0037] When the manipulator 18 is at the upper end of the base body 10, the manipulator 18 moves downward with the help of the vertical moving unit. When the manipulator 18 clamps the transformer housing, it moves upward again with the help of the vertical moving unit, and then moves outward with the help of the lateral moving unit. After moving to the preset position, the transformer housing is released and lowered. The transformer housing after crimping can be automatically clamped from the base body 10 and sent to the outside of the workbench, realizing automatic unloading.

[0038] like Figure 4 As shown, the vertical moving unit includes a vertical frame 19 in a C-shaped structure uprightly fixed on the upper end of the bracket 17 and a vertical telescopic cylinder 20 fixed on the upper end of the vertical frame 19. The output end of the vertical telescopic cylinder 20 passes through the outer wall of the vertical frame 19 and extends into the opening of the vertical frame 19 and is connected to the horizontal moving unit.

[0039] The lateral moving unit is moved up and down by means of the vertical telescopic cylinder 20, and the manipulator 18 is arranged on the lateral moving unit, so that the manipulator 18 is moved up and down.

[0040] like Figure 5 As shown, the transverse moving unit includes a transverse frame 21 arranged horizontally and in a C-shaped structure, a transverse telescopic cylinder 22 arranged on the outside of the transverse frame 21, a vertical slider 23 and a vertical slide rail 24 arranged on the back of the transverse frame 21 in a C-shaped structure, the transverse telescopic cylinder 22 is arranged outside the transverse frame 21 and the telescopic end passes through the outer wall of the transverse frame 21 and extends into the transverse frame 21, the vertical slide rail 24 is fixed on the vertical moving unit, and the back of the transverse frame 21 is slidably connected to the vertical slide rail 24 by means of the vertical slider 23, and the transverse frame 21 reciprocates along the vertical slide rail 24 by means of the vertical moving unit.

[0041] The transverse frame 21 is guided and limited by means of a vertical slider 23 and a vertical slide rail 24 , and the manipulator 18 is arranged in the transverse frame 21 and moves laterally by means of a transverse telescopic cylinder 22 .

[0042] like Figure 5 As shown, a fixed seat 25, a transverse slider 26 with a C-shaped structure and a transverse slide rail 27 are sequentially arranged on the inner side of the manipulator 18. The manipulator 18 is fixed on the outer side of the fixed seat 25 and one end of the fixed seat 25 is connected to the telescopic end of the transverse moving unit. The transverse slider 26 is slidably engaged with the transverse slide rail 27 fixed on the transverse moving unit. The manipulator 18 is driven by the transverse moving unit to perform horizontal reciprocating motion along the transverse slide rail 27.

[0043] The manipulator 18 is guided and limited by means of a transverse slider 26 and a transverse rail 27 .

[0044] like Figure 1 As shown, it also includes a material unloading unit, which includes a support plate 28 set on the workbench 1 and a material channel 29 fixed to the upper end of the support plate 28. The cross-section of the material channel 29 is a U-shaped structure and the outer side is tilted downward. The upper end of the material channel 29 corresponds to the robot 18.

[0045] After gripping the transformer housing, the robot 18 moves to the upper end of the material channel 29 and then releases, or moves downward again and then releases, and the transformer housing falls into the material channel 29. Since the material channel 29 is inclined, the transformer housing slides to the predetermined position along the guide of the material channel 29 to complete precise unloading.

Claims

1. An adjustable transformer primary terminal automatic crimping device, comprising a workbench (1), a driving structure arranged on the workbench (1), a crimping seat arranged on the workbench (1), and a crimping structure arranged on the workbench (1), wherein the driving structure drives the crimping structure to reciprocate toward the crimping seat, and is characterized in that: The crimping structure comprises a connection seat (2), a first crimping column (3) and a second crimping column (4) arranged at the lower end of the connection seat (2), the first crimping column (3) and the second crimping column (4) respectively corresponding to different positions of the primary terminal on the crimping seat, and the upper end of the connection seat (2) is fixed to the telescopic end of the driving structure; The crimping structure further comprises a clamping seat (5) arranged on one side of the connection seat (2) and a third crimping post (6) arranged on the clamping seat (5); the clamping seat (5) is a C-shaped structure; the clamping seat (5) is fixed to one side of the connection seat (2) by means of its opening; the first crimping post (3), the second crimping post (4) and the third crimping post (6) all correspond to different positions of the primary terminal on the crimping seat; The crimping seat comprises a seat body (10), a first limiting plate (11) and a second limiting plate (12) arranged at the upper end of the seat body (10); the upper end of the seat body (10) is provided with a mounting groove (13) adapted to the transformer housing and a limiting groove (14) adapted to the primary terminal; one side of the limiting groove (14) is tangent to the mounting groove (13); the first limiting plate (11) is arranged on the seat body (10) and is adjacent to the mounting groove (13) and the limiting groove (14); the second limiting plate (12) is arranged in the limiting groove (14) and is attached to the inner wall of the limiting groove (14) on the tangent side to the mounting groove (13).

2. The adjustable transformer primary terminal automatic crimping device according to claim 1 is characterized in that: The driving structure comprises a crimping cylinder (7) and a fixing plate (8); the fixing plate (8) is in an inverted T-shaped structure and a triangular reinforcing plate (9) is arranged outside the fixing plate (8); the crimping cylinder (7) is fixed inside the fixing plate (8) with its telescopic end facing downward and fixed to the crimping structure.

3. The adjustable transformer primary terminal automatic crimping device according to claim 1 is characterized in that: The crimping seat further comprises a rotating disk (15) and a driving motor (16); the rotating disk (15) is arranged on the workbench (1) and has a plurality of seat bodies (10) arranged in an annular shape on its upper end surface; the lower end of the crimping structure corresponds to the seat body (10); the rotating disk (15) is driven by the driving motor (16) and has the freedom to rotate.

4. The adjustable transformer primary terminal automatic crimping device according to claim 1 is characterized in that: The present invention also comprises a material unloading structure, the material unloading structure comprising a bracket (17) arranged on the workbench (1), a vertical moving unit arranged on the bracket (17), a horizontal moving unit arranged on the vertical moving unit, and a manipulator (18) arranged on the horizontal moving unit, the bracket (17) being arranged on one side of the crimping seat, the vertical moving unit driving the horizontal moving unit to perform up and down reciprocating motion, the horizontal moving unit driving the manipulator (18) to perform horizontal reciprocating motion, and the manipulator (18) being arranged toward the seat body (10).

5. The adjustable transformer primary terminal automatic crimping device according to claim 4 is characterized in that: The vertical moving unit comprises a vertical frame (19) in a C-shaped structure vertically fixed to the upper end of the bracket (17) and a vertical telescopic cylinder (20) fixed to the upper end of the vertical frame (19), wherein the output end of the vertical telescopic cylinder (20) passes through the outer wall of the vertical frame (19), extends into the opening of the vertical frame (19) and is connected to the horizontal moving unit.

6. The adjustable transformer primary terminal automatic crimping device according to claim 4 is characterized in that: The transverse moving unit comprises a transverse frame (21) arranged transversely and in a C-shaped structure, a transverse telescopic cylinder (22) arranged outside the transverse frame (21), a vertical slider (23) and a vertical slide rail (24) arranged on the back of the transverse frame (21) in a C-shaped structure, wherein the transverse telescopic cylinder (22) is arranged outside the transverse frame (21) and the telescopic end thereof passes through the outer wall of the transverse frame (21) and extends into the transverse frame (21); the vertical slide rail (24) is fixed to the vertical moving unit; the back of the transverse frame (21) is slidably engaged with the vertical slide rail (24) by means of the vertical slider (23); and the transverse frame (21) reciprocates along the vertical slide rail (24) by means of the vertical moving unit.

7. The adjustable transformer primary terminal automatic crimping device according to claim 4 is characterized in that: A fixed seat (25), a C-shaped transverse slider (26) and a transverse slide rail (27) are sequentially arranged on the inner side of the manipulator (18); the manipulator (18) is fixed on the outer side of the fixed seat (25) and one end of the fixed seat (25) is connected to the telescopic end of the transverse moving unit; the transverse slider (26) is slidably engaged with the transverse slide rail (27) fixed on the transverse moving unit; and the manipulator (18) is driven by the transverse moving unit to perform horizontal reciprocating motion along the transverse slide rail (27).

8. The adjustable transformer primary terminal automatic crimping device according to claim 4 is characterized in that: It also includes a material unloading unit, which includes a support plate (28) arranged on the workbench (1) and a material channel (29) fixed to the upper end of the support plate (28), the material channel (29) having a U-shaped cross-section and an outer side inclined downward, and the upper end of the material channel (29) corresponds to the robot (18).

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