Grounding terminal pressing machine

Abstract

The invention relates to the technical field of automatic motor assembling equipment, and discloses a grounding terminal pressing machine. The grounding terminal press-fitting machine comprises a machine table, a punching device, a clamping and rotating device, a clamping device and a press-fitting device, the machine table is provided with a press-fitting station, and an iron core is located at the press-fitting station; the punching device is arranged on the machine table and located on one side of the press-fitting station. The clamping and rotating device is movably arranged on the machine table, located on one side of the discharging port of the punching device and used for clamping the grounding terminal located on the discharging port of the punching device and rotating the grounding terminal to be in a vertical state. The clamping device is movably arranged on the machine table, and the clamping device and the clamping rotating device are vertically arranged; the press-fitting device is arranged on the machine table in a lifting mode and located within the range of the press-fitting station, the press-fitting device, the grounding terminal and a terminal groove of the iron core are all located on the same center line, and the grounding terminal is located between the press-fitting device and the terminal groove of the iron core; the grounding terminal press-fitting machine is compact in structural design and small in size, working procedures are saved, and press-fitting efficiency and press-fitting accuracy are improved.

Description

Technical Field

[0001] The invention relates to the technical field of motor automatic assembly equipment, and in particular to a ground terminal press-fitting machine. Background Art

[0002] Press-fitting refers to the assembly process of pressing two parts with an interference fit into a mating position. During the motor assembly process, the stator needs to be assembled. When assembling the stator, the grounding terminal is first pressed onto the iron core, which is provided with a number of terminal slots for inserting the grounding terminal.

[0003] The prior art generally uses two pressing mechanisms for pre-pressing and tightening the grounding terminal, which not only makes the structural design of the pressing machine complex and large in size, but also requires positioning before each press-fitting, which increases the processing steps, resulting in low press-fitting efficiency. In addition, the grounding terminal is not guided during pre-pressing, which makes it easy for the grounding terminal to tilt during pre-pressing, resulting in inaccurate press-fitting and an increase in the defective rate. Summary of the invention

[0004] The main purpose of the present invention is to provide a ground terminal press-fitting machine, aiming to solve the technical problems of the press-fitting machines in the prior art, such as complex structure, large size, multiple processing steps, low press-fitting efficiency and inaccurate press-fitting.

[0005] To achieve the above-mentioned object, the present invention provides a ground terminal press-fitting machine, the ground terminal press-fitting machine comprising a machine platform, the machine platform is provided with a press-fitting station, the iron core is located on the press-fitting station;

[0006] A punching device, which is arranged on the machine platform and located at one side of the press-fitting station, and is used for punching the grounding terminal;

[0007] A clamping and rotating device, which is movably arranged on the machine platform and is located at one side of the discharge port of the punching and cutting device, and is used to clamp the grounding terminal located on the discharge port of the punching and cutting device and rotate the grounding terminal to a vertical state;

[0008] A clamping device, the clamping device is movably arranged on the machine platform, the clamping device and the clamping rotating device are arranged vertically, and is used to clamp the grounding terminal clamped by the clamping rotating device;

[0009] A press-fitting device, which can be raised and lowered on the machine platform and is located within the range of the press-fitting station, wherein the press-fitting device, the grounding terminal and the terminal slot of the iron core are all located on the same center line, and the grounding terminal is located between the press-fitting device and the terminal slot of the iron core;

[0010] When in working state, the clamping and rotating device transports the grounding terminal in the vertical state to the initial position of the clamping and rotating device, the clamping device clamps the grounding terminal and transports it to above the terminal slot of the iron core, the pressing device descends and presses against the grounding terminal to a first preset distance for pre-pressing, and the pressing device remains pressed against the grounding terminal, the clamping device releases the grounding terminal and resets, and the pressing device presses against the grounding terminal and descends to a second preset distance for tightening.

[0011] Optionally, in one embodiment, the clamping and rotating device includes a first sliding structure, a rotating driving member, a first slide and a first clamping assembly, the first sliding structure is horizontally arranged on the machine table, the rotating driving member can be slidably arranged on the first sliding structure, the first slide can be rotatably arranged on the rotating driving member, the first clamping assembly can be slidably arranged on the first slide, and the clamping port of the first clamping assembly is arranged toward the discharge port of the punching device.

[0012] Optionally, in one embodiment, the first sliding structure includes a first fixed frame, a first slide rail and a fixed plate, the first fixed frame is horizontally arranged on the machine platform, the first slide rail is arranged on the first fixed frame, the fixed plate can be slidably arranged on the first slide rail, and the rotating driving member is arranged on the fixed plate.

[0013] Optionally, in one embodiment, the clamping device includes a second slide rail arranged along the longitudinal direction of the machine platform, a second slide table slidably arranged on the second slide rail, and a second clamping assembly arranged on the second slide table.

[0014] Optionally, in one embodiment, the press-fitting device includes a second fixed frame, a lifting drive member, a sliding plate and a pressing head, the second fixed frame is arranged on the machine platform and is located directly above the pressing station, the lifting drive member is arranged on the second fixed frame, the sliding plate can be slidably arranged on the second fixed frame, and the output end of the lifting drive member is connected to the sliding plate, the pressing head is arranged on the side of the sliding plate away from the lifting drive member, and the pressing head is arranged toward the iron core.

[0015] Optionally, in one embodiment, the grounding terminal includes a horizontal arm and a vertical arm, the horizontal arm and the vertical arm are connected in a "cross" shape, and a through hole is provided on the end surface of the pressure head facing the iron core, and the aperture of the through hole is larger than the length of the vertical arm and smaller than the length of the horizontal arm.

[0016] Optionally, in one embodiment, a pressure sensor for detecting pressure is provided in the pressure head; and / or a grating ruler for measuring the press-fit displacement distance is provided on one side of the second fixing bracket.

[0017] Optionally, in one embodiment, the ground terminal press-fitting machine further includes a detection device for measuring the conduction between the ground terminal and the iron core, the detection device is arranged on the machine platform and located on one side of the press-fitting device, the detection device includes a first test probe and a second test probe, the first test probe is electrically connected to the ground terminal, and the second test probe is tested with the iron core; and / or,

[0018] The ground terminal press-fitting machine further comprises a height detection device for detecting the height of the upper end surface of the ground terminal, wherein the height detection device is arranged on the machine platform and located on one side of the press-fitting device; and / or,

[0019] At least one warning light is disposed on the platform, and the warning light is located on the other side of the platform away from the punching device.

[0020] Optionally, in one embodiment, the grounding terminal press machine further includes a conveying device for transporting the iron core, the conveying device includes a third slide rail arranged along the longitudinal direction of the machine and a mounting seat slidably arranged on the third slide rail, and the iron core is fixed on the mounting seat.

[0021] Optionally, in one embodiment, the grounding terminal further includes a machine cover and a feeding device, wherein the machine cover is disposed on the machine platform, and the feeding device is disposed on the machine cover and is located on one side of the feed port of the punching device for feeding the grounding terminal.

[0022] In the technical solution provided by the present invention, a press-fitting station is provided on the machine platform, and the iron core is located on the press-fitting station, so that the press-fitting device arranged on the machine platform presses the grounding terminal on the iron core. The punching device is arranged on the machine platform and is located on one side of the press-fitting station to punch out rows of grounding terminals into single grounding terminals, so that the clamping and rotating device can clamp the single grounding terminal. The clamping and rotating device can be movably arranged on the machine platform and is located on one side of the discharge port of the punching and cutting device, so that the clamping and rotating device can clamp the grounding terminal located on the discharge port of the punching and cutting device, and rotate the grounding terminal to a vertical state, and then transport the single grounding terminal to the initial position of the clamping device arranged on the machine platform, so that the clamping and rotating device can clamp the grounding terminal located on the discharge port of the punching and cutting device. The device can clamp the grounding terminal in a vertical state and transport it to the top of the iron core, and make the pressing device, the grounding terminal and the terminal slot of the iron core all on the same center line, and the grounding terminal is located between the pressing device and the terminal slot of the iron core, so that the pre-pressing and tightening pressing of the grounding terminal can be completed by one pressing device, avoiding the two pressing devices to perform pre-pressing and tightening pressing separately, resulting in a large size of the grounding terminal pressing machine, a non-compact structural design, increased process and cost, and low production efficiency. In the process of pre-pressing, the clamping device maintains the state of clamping the grounding terminal, avoiding the grounding terminal from tilting during the pre-pressing process, resulting in inaccurate pressing and increasing the defective rate. The grounding terminal pressing machine of the present application realizes a compact structural design, a small size, saves processes, improves production efficiency and improves the accuracy of pressing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] One or more embodiments are exemplarily described by corresponding drawings, which do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and the figures in the drawings do not constitute proportional limitations unless otherwise stated.

[0024] Figure 1 A schematic structural diagram of a ground terminal press-fitting machine according to an embodiment of the present invention;

[0025] Figure 2 It is a structural schematic diagram of a ground terminal press-fitting machine according to an embodiment of the present invention, with the machine cover and the feeding device removed from a first perspective;

[0026] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0027] Figure 4 It is a schematic structural diagram of a punching device, a clamping and rotating device, a clamping device and a conveying device according to an embodiment of the present invention;

[0028] Figure 5 for Figure 4 A partial enlarged view of point B in the middle;

[0029] Figure 6 for Figure 4 A partial enlarged view of point C in the middle;

[0030] Figure 7 A schematic structural diagram of a clamping and rotating device according to an embodiment of the present invention rotating to a vertical state;

[0031] Figure 8 for Figure 7 A partial enlarged view of point D in the middle;

[0032] Fig. 9 It is a structural schematic diagram of a press-fitting device according to an embodiment of the present invention;

[0033] Fig.10 A schematic diagram of the structure of a pressing head pre-pressing a grounding terminal according to an embodiment;

[0034] Fig.11 for Fig.10 A partial enlarged view of point E in the middle.

[0035] Among them, 100, ground terminal press machine; 10, machine platform; 20, punching device; 201, feed port; 202, discharge port; 30, clamping and rotating device; 301, first sliding structure; 302, rotating drive member; 303, first slide; 304, first clamping assembly; 305, first fixed frame; 306, first slide rail; 307, fixed plate; 40, clamping device; 401, second slide rail; 402, second slide; 403, second clamping assembly; 50, press device; 501, second fixed frame; 502, lifting Driving member; 503, sliding plate; 504, pressure head; 505, through hole; 506, grating ruler; 60, conveying device; 601, third slide rail; 602, mounting seat; 70, detection device; 701, first probe; 702, second probe; 71, height detection device; 72, prompt light; 80, machine cover; 801, mounting frame; 90, feeding device; 901, feeding shaft; 902, waste paper collection shaft; 903, feeding channel; 200, iron core; 300, grounding terminal; 310, horizontal arm; 311, vertical arm. DETAILED DESCRIPTION

[0036] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on another element, or there can be one or more centered elements therebetween. When an element is described as "connected" to another element, it can be directly connected to another element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right", "inside", "outside" and similar expressions used in this specification are only for illustrative purposes. In the description of the present invention, the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, unless otherwise specified, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; the meaning of "multiple" is two or more. The term "include" and any variation thereof means non-exclusive inclusion, and one or more other features, integers, steps, operations, units, components and / or combinations thereof may be present or added.

[0037] In addition, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or a connection between two components. All technical and scientific terms used in this specification have the same meaning as those generally understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0038] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0039] Please refer to Figures 1 to 11 , an embodiment of the present invention discloses a ground terminal press-fitting machine 100 .

[0040] In one embodiment, if Figure 1-Figure 3 As shown, the grounding terminal press-fitting machine 100 includes a machine cover 80, a machine platform 10, a loading device 90, a conveying device 60, a punching device 20, a clamping and rotating device 30, a clamping device 40 and a pressing device 50. The grounding terminal press-fitting machine 100 is used to press-fit a single grounding terminal 300 onto a terminal slot of an iron core 200, and the terminal slot is arranged on the iron core 200.

[0041] The machine 10 provides support and bearing for the grounding terminal press machine 100. The conveying device 60 is used to convey the iron core 200. The conveying device 60 includes a third slide rail 601 arranged along the longitudinal direction of the machine 10 and a mounting seat 602 slidably arranged on the third slide rail 601. The iron core 200 is fixed on the mounting seat 602. Specifically, a slider that cooperates with the third slide rail 601 is provided on the mounting seat 602. The mounting seat 602 slides on the third slide rail 601 through the slider, and the third slide rail 601 is arranged along the longitudinal direction of the machine 10, so that the mounting seat 602 can move along the longitudinal direction of the machine 10 to complete the conveying of the iron core 200 through multiple processes. First, the iron core 200 is installed on the mounting seat 602 by a robot, and then the iron core 200 is inspected by a detection device. , detect whether the terminal slot of the iron core 200 is placed upside down. If there is no problem, the conveying device 60 drives the mounting seat 602 to move toward the pressing station of the machine table 10 until it moves to the pressing station. The mounting seat 602 can also be set to have multiple mounting positions, and each mounting position corresponds to a fixed iron core 200, so that after pressing and installing one iron core 200, the mounting seat 602 is moved by the conveying device 60, so that the iron core 200 on the next mounting position can be located under the pressing device 50, avoiding the need to press and install one iron core 200 from the starting position of the mounting seat 602, which increases time and leads to high costs. There can be 2, 3, 4, 5, 6 mounting positions, etc. on a mounting seat 602, and the present embodiment does not limit the specific number of mounting positions.

[0042] The material of the machine cover 80 can be transparent material, which is convenient for real-time observation during processing, and the machine cover 80 is provided with a movable door, so that abnormal situations can be handled in time during processing. The machine cover 80 is set on the machine table 10, and a mounting frame 801 is provided on the outer side of the machine cover 80. The feeding device 90 is set on the mounting frame 801. Since the grounding terminal 300 is a coil formed by connecting a plurality of single grounding terminals 300 when it is incoming, the grounding terminals 300 of two adjacent circles are separated by separating waste paper, so when feeding, it is necessary to recycle the separating waste paper and punch the grounding terminal 300 of the coil into a single grounding terminal 300. The feeding device 90 includes a feeding shaft 901, a waste collecting shaft 902, and a waste collecting shaft 904. The paper rotating shaft 902 and the feeding channel 903, the loading rotating shaft 901, the waste paper collecting rotating shaft 902 and the feeding channel 903 are all arranged on the mounting frame 801, the loading rotating shaft 901 is located between the waste paper collecting rotating shaft 902 and the feeding channel 903, and the discharging end of the feeding channel 903 is arranged opposite to the opening of the machine cover 80, so that the coil is installed on the loading rotating shaft 901, and the single-row grounding terminal 300 enters the machine cover 80 from the feeding channel 903 and the opening of the machine cover 80, and the separation paper is pre-rolled on the waste paper collecting rotating shaft 902 by manual means. When working, the loading rotating shaft 901 and the waste paper collecting rotating shaft 902 rotate synchronously, so that the separation paper can be separated and recycled, and the loading can be realized at the same time.

[0043] The punching device 20 is arranged on the machine table 10 and is located in the machine cover 80. The feed port 201 of the punching device 20 is opposite to the opening of the machine cover 80, so that the single-row grounding terminal 300 enters the punching device 20 from the feed channel 903 through the opening of the machine cover 80. The punching device 20 is provided with a punching knife and a push plate to punch the single-row grounding terminal 300 into a single grounding terminal 300. After punching, the push plate pushes the single grounding terminal 300 to the discharge port 202 of the punching device 20, and the single grounding terminal 300 is located at the discharge port 202 of the punching device 20 in a horizontal state. The punching device 20 can be an externally purchased equipment.

[0044] Since the single grounding terminal 300 is in a horizontal state when located at the discharge port 202 of the punching device 20, the clamping and rotating device 30 needs to rotate the single grounding terminal 300 to a vertical state after clamping the single grounding terminal 300 located at the discharge port 202 of the punching device 20 to facilitate the subsequent pressing of the grounding terminal 300. The clamping and rotating device 30 is movably arranged on the machine table 10, and the clamping and rotating device 30 is arranged along the transverse direction of the machine table 10, so that the clamping and rotating device 30 can move along the transverse direction of the machine table 10 to transport the clamped grounding terminal 300 from the punching and cutting discharge port 202 to the initial position of the clamping device 40, so as to facilitate the clamping device 40 to clamp the grounding terminal 300 in the vertical state.

[0045] The clamping device 40 is movably arranged on the machine table 10, and the clamping device 40 is arranged along the longitudinal direction of the machine table 10. The clamping device 40 and the punching device 20 are respectively located on opposite sides of the conveying device 60, so that the clamping device 40 can move along the longitudinal direction of the machine table 10, so that the clamping device 40 can transport the clamped grounding terminal 300 from the clamping rotating device 30 to the installation station. The grounding terminal 300 can be aligned with the terminal groove of the iron core 200 by controlling the sliding speed of the clamping device 40, so that the pressing device 50 can accurately press the grounding terminal 300 into the terminal groove of the iron core 200. During pre-pressing, the clamping device 40 maintains the state of clamping the grounding terminal 300 and moves downward with the grounding terminal 300.

[0046] The press-fitting device 50 can be raised and lowered on the machine table 10, and the press-fitting device 50, the grounding terminal 300 and the terminal slot of the iron core 200 are all on the same center line, and the grounding terminal 300 is located between the press-fitting device 50 and the terminal slot of the iron core 200, so that the press-fitting device 50 can accurately press the grounding terminal 300 into the terminal slot of the iron core 200.

[0047] When in working state, the clamping and rotating device 30 clamps the grounding terminal 300 in a horizontal state from the discharge port 202 of the punching and cutting device 20, then rotates the grounding terminal 300 in a horizontal state into a vertical state, and transports the rotated grounding terminal 300 to the initial position of the clamping device 40. The clamping device 40 clamps the grounding terminal 300 from the clamping and rotating device 30, then transports the grounding terminal 300 to the top of the iron core 200, and aligns the grounding terminal 300 with the terminal slot of the iron core 200 by controlling the movement speed of the clamping device 40. After alignment, the pressing device 50 descends and presses against the grounding terminal 300 to a first preset distance to pre-press the grounding terminal 300. After pre-pressing, the pressing device 50 maintains a state of contacting the grounding terminal 300, the clamping device 40 releases the grounding terminal 300 and returns to the initial position, and the pressing device 50 continues to press against the grounding terminal 300 to descend to a second preset distance for tightening and pressing.

[0048] The ground terminal press-fitting machine 100 of the present application can complete the pre-pressing and tightening press-fitting of the ground terminal 300 twice through a press-fitting device 50, avoiding the need for two press-fitting devices 50 to perform pre-pressing and tightening press-fitting respectively, which results in the ground terminal press-fitting machine 100 being large in size, having a non-compact structural design, increasing costs due to additional processes, and having low production efficiency. In addition, during the pre-pressing process, the clamping device 40 maintains the state of clamping the ground terminal 300, avoiding the ground terminal 300 from tilting during the pre-pressing process, resulting in inaccurate press-fitting and an increase in the defective rate. The ground terminal press-fitting machine 100 of the present application achieves a compact structural design, small size, saves processes, improves production efficiency, and improves the accuracy of press-fitting.

[0049] In one embodiment, Figure 2-Figure 5As shown, the clamping and rotating device 30 includes a first sliding structure 301, a rotating driving member 302, a first slide 303 and a first clamping assembly 304. The first sliding structure 301 is horizontally arranged on the machine 10, that is, the first sliding structure 301 is arranged along the lateral direction of the machine 10, so that the first sliding structure 301 can move along the lateral direction of the machine 10. The rotating driving member 302 can be a pneumatic swing table swing cylinder. The pneumatic swing table swing cylinder is a pneumatic actuator that uses compressed air to drive the output shaft to perform reciprocating rotational motion within a certain angle range. The rotary drive member 302 can be slidably arranged on the first sliding structure 301, and the first slide 303 can be rotatably arranged on the output end of the rotary drive member 302, so that the rotary drive member 302 can drive the first slide 303 to rotate, and the first clamping assembly 304 is slidably arranged through the slider and the guide rail of the first slide 303. The sliding structure is simple and the movement accuracy is high, so that the first slide 303 can drive the first clamping assembly 304 to move along the longitudinal direction of the machine 10, thereby realizing that the first clamping assembly 304 can move toward the punching device 20 or move away from the punching device 20, and the first The clamping assembly 304 is a pneumatic clamp, which drives the two oppositely arranged clamping jaws of the first clamping assembly 304 to open or close by inputting gas into the air pipe. When the clamping rotating device 30 moves to one side of the punching device 20, the clamping port of the first clamping assembly 304 is set toward the discharge port 202 of the punching device 20, so that the first clamping group will be able to clamp the grounding terminal 300 from the discharge port 202 of the punching device 20. The clamping rotating device 30 can not only move along the longitudinal direction of the machine table 10 but also move along the lateral direction of the machine table 10. The clamping rotating device 30 has a simple structure and high conveying efficiency.

[0050] When the clamping and rotating device 30 is in working state, Figure 5 As shown, the first clamping assembly 304 clamps the grounding terminal 300 in a horizontal state, and then the first slide 303 drives the first clamping assembly 304 to move away from the punching device 20, and the rotary drive member 302 drives the slide to rotate and then drives the first clamping assembly 304 to rotate, thereby driving the grounding terminal 300 to rotate, as shown in FIG. Figure 8 As shown, the grounding terminal 300 is rotated from a horizontal state to a vertical state, and then the first sliding structure 301 moves along the lateral direction of the machine platform 10 to the initial position of the clamping device 40, so that the clamping device 40 can clamp the grounding terminal 300 in a vertical state.

[0051] Furthermore, Figure 4 and Figure 5As shown, the first sliding structure 301 includes a first fixing frame 305, a first slide rail 306 and a fixing plate 307. The first fixing frame 305 is horizontally arranged on the machine 10, that is, the first fixing frame 305 is arranged along the transverse direction of the machine 10, the first slide rail 306 is fixed on the first fixing frame 305, the fixing plate 307 is slidably arranged with the first slide rail 306 through a slider, and the rotary driving member 302 is fixed on the fixing plate 307, so that the rotary clamping device 40 can transport the grounding terminal 300 from the discharge port 202 of the punching device 20 to the initial position of the clamping assembly along the transverse direction of the machine 10. The structure is simple and the design is compact.

[0052] In one embodiment, Figure 4-Figure 8 As shown, the clamping device 40 includes a second slide rail 401, a second slide table 402 and a second clamping assembly 403. The second slide rail 401 is arranged on the machine table 10 and is arranged along the longitudinal direction of the machine table 10. The second slide table 402 is slidably connected to the second slide rail 401 through a slider. The second clamping assembly 403 is slidably connected to the second slide table 402 through a slider, and the sliding direction of the slider and the second slide table 402 is a vertical direction. When the second clamping assembly 403 clamps the grounding terminal 300, the slider does not move to the limit position. Therefore, during pre-pressing, when the grounding terminal 300 is pressed down by the press-fitting device 50, the second clamping assembly 403 keeps clamping the grounding terminal 300, so that the grounding terminal 300 is also pressed down to the second clamping assembly 403 during the pressing process. The clamping assembly 403 has a downward pressure, under which the slider moves downward, so that the second clamping assembly 403 can follow the grounding terminal 300 to be pressed downward; when the specifications of the iron core 200 are different, the specifications of the grounding terminal 300 are also different, and the vertical distance between the iron core 200 and the grounding terminal 300 may be too far or too close. Therefore, the sliding direction of the slider and the second slide 402 is the vertical direction, so that the clamping device 40 can adjust the distance between the iron core 200 and the grounding terminal 300 up and down, so that the pressing device 50 can better press the grounding terminal 300 into the terminal groove of the iron core 200. The first clamping assembly 304 is a pneumatic clamp, which drives the two oppositely arranged clamps of the second clamping assembly 403 to open or close by inputting gas into the air pipe.

[0053] When the clamping device 40 is in the working state, the clamping device 40 is in the initial state. After the second clamping component 403 clamps the grounding terminal 300 located on the first clamping component 304, the first clamping component 304 releases the clamping claw, and then the second slide 402 moves along the length direction of the second slide rail 401 to transport the grounding terminal 300 to the top of the iron core 200, and then the grounding terminal 300 is aligned with the terminal slot of the iron core 200 by reducing the movement speed of the second slide 402 for subsequent press-fitting.

[0054] In one embodiment, if Fig. 9As shown, the press-fitting device 50 includes a second fixed frame 501, a lifting drive member 502, a sliding plate 503 and a pressing head 504. The second fixed frame 501 is fixed on the machine platform 10 and is located directly above the press-fitting tooling. The lifting drive member 502 is fixed on the second fixed frame 501. The lifting drive member 502 can be a motor. The sliding plate 503 can be slidably set on the second fixed frame 501, and the output end of the lifting drive member 502 is connected to the sliding plate 503, so that the lifting drive member 502 can drive the sliding plate 503 to rise and fall along the vertical direction of the first fixed frame 305. The pressing head 504 is fixed on the side of the sliding plate 503 away from the lifting drive member 502, and the pressing head 504 is set toward the iron core 200. The press-fitting device 50 has a simple structure and high efficiency.

[0055] When the pressing device 50 is in working state, the lifting drive member 502 drives the sliding plate 503 to move downward along the second fixed frame 501, and at the same time pushes the pressing head 504 fixed on the sliding plate 503 to move toward the grounding terminal 300, so that the pressing head 504 can press the grounding terminal 300 into the terminal groove of the iron core 200.

[0056] Further, such as Fig.10 and Fig.11 As shown, the grounding terminal 300 includes a horizontal arm 310 and a vertical arm 311, and the horizontal arm 310 and the vertical arm 311 are connected in a "cross" shape. A through hole 505 is provided on the end face of the pressing head 504 facing the iron core 200, and the aperture of the through hole 505 is larger than the length of the vertical arm 311 and smaller than the length of the horizontal arm 310, so that the vertical arm 311 of the grounding terminal 300 can be inserted into the through hole 505, and the end face of the pressing head 504 is against the horizontal arm 310, so that the pressing head 504 can be pressed against the grounding terminal 300 for press-fitting.

[0057] Furthermore, a pressure sensor (not shown) is provided in the pressure head 504, and the pressure sensor is used to detect the pressure of the press fitting. During pre-pressing, the lifting drive member 502 drives the sliding plate 503 to descend, thereby driving the pressure head 504 to descend. The pressure head 504 descends until it contacts the ground terminal 300 and continues to press down to a first preset distance. At the same time, the second clamping assembly 403 also follows the ground terminal 300 and presses down to complete the pre-pressing of the ground terminal 300. At this time, the pressure sensor detects that the press fitting pressure reaches the set value, and feeds back the set value to the host computer. The host computer analyzes and processes the received set value, and then controls the second clamping assembly 403 to release the ground terminal 300, and controls the clamping assembly to return to the initial position. The ground terminal 300 is positioned to wait for the next clamping, and then the pressing head 504 continues to press the ground terminal 300 down to a second preset distance to complete the tightening pre-pressing. During the pre-pressing, the second clamping assembly 403 maintains the state of clamping the ground terminal 300 and follows the ground terminal 300 to descend, so that the ground terminal 300 remains in a vertical state, avoiding the ground terminal 300 from tilting during the pressing process, thereby improving the accuracy of the press-fitting, and using a press-fitting device 50 to complete the two press-fittings of pre-pressing and tightening press-fitting, which not only has high press-fitting efficiency, but also makes the structural design of the ground terminal press-fitting machine 100 compact and small in size, and only one alignment is required to complete two press-fittings, avoiding multiple alignments, saving processes, improving efficiency, and reducing costs.

[0058] Furthermore, a grating ruler 506 is provided on one side of the second fixing frame 501 , and the grating ruler 506 is used to measure the press-fit displacement distance, so that the host computer can control the start or stop of the lifting drive 502 through the displacement distance detected by the grating ruler 506 .

[0059] In one embodiment, a plurality of different workstations may be arranged along the conveying path of the conveying device 60 so as to realize multiple functions of the ground terminal press-fitting machine 100 and improve the versatility of the ground terminal press-fitting machine 100. Specifically, the ground terminal press-fitting machine 100 further includes a detection device 70, which is used to measure the conduction between the ground terminal 300 and the iron core 200. The detection device 70 includes a third fixing frame, a first probe 701 and a second probe 702. The third fixing frame is arranged on the machine table 10 and is located on a side of the press-fitting device 50 away from the punching device 20. The first probe 701 and the second probe 702 are both arranged on the third fixing frame. When the conveying device 60 conveys the iron core 200 press-fitted with the ground terminal 300 to the position corresponding to the first probe 701 and the second probe 702, the first probe 701 and the second probe 702 respectively contact the ground terminal 300 and the iron core 200 to realize electrical connection and conduction detection.

[0060] Furthermore, a height detection device 71 can be provided to detect the height of the upper end surface of the grounding terminal 300, and the height of the upper end surface of the grounding terminal 300 is used to determine whether the grounding terminal 300 is pressed into place. The height detection device 71 is provided on the third fixing frame and is located on the side of the second probe 702 away from the pressing device 50, so that the height detection can be performed after the conduction detection is completed. The third fixing frame is fixed to the output end of the cylinder or the motor, so that the cylinder or the motor can drive the third fixing frame to move up and down. When the detection is to be performed, the third fixing frame moves downward, and when the detection is completed, the third fixing frame moves upward. At the same time, a plurality of prompt lights 72 can be provided on the machine 10. The prompt lights 72 are located on the other side of the machine 10 away from the punching device 20. When the height detection is completed, the conveying device 60 conveys the detected iron core 200 to the corresponding prompt light 72, and the prompt light 72 lights up to indicate that the iron core 200 has been pressed and inspected and can be taken away.

[0061] The grounding terminal press-fitting machine 100 of the present application completes two press-fittings of pre-pressing and tightening press-fitting through a press-fitting device 50 and one alignment. It not only has high press-fitting efficiency, saves processes and reduces costs, but also makes the structural design of the grounding terminal press-fitting machine 100 compact and small in size. During pre-pressing, the second clamping assembly 403 keeps clamping the grounding terminal 300 and follows the grounding terminal 300 to descend, so that the grounding terminal 300 always maintains a vertical state during the pre-pressing process, avoiding the grounding terminal 300 from tilting, resulting in inaccurate press-fitting, and improving the press-fitting accuracy. In addition, only one alignment is required to complete two press-fittings, avoiding multiple alignments that result in low press-fitting accuracy.

[0062] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may also be combined, the steps may be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Although the present invention has been described in detail with reference to the above embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the above embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A ground terminal press-fitting machine, used for press-fitting a ground terminal onto an iron core, characterized in that: Ground terminal press machine includes: A machine platform, wherein the machine platform is provided with a press-fitting station, and the iron core is located on the press-fitting station; A punching device, which is arranged on the machine platform and located at one side of the press-fitting station, and is used for punching the grounding terminal; A clamping and rotating device, which is movably arranged on the machine platform and is located at one side of the discharge port of the punching and cutting device, and is used to clamp the grounding terminal located on the discharge port of the punching and cutting device and rotate the grounding terminal to a vertical state; A clamping device, the clamping device is movably arranged on the machine platform, the clamping device and the clamping rotating device are arranged vertically, and is used to clamp the grounding terminal clamped by the clamping rotating device; A press-fitting device, which can be raised and lowered on the machine platform and is located within the range of the press-fitting station, wherein the press-fitting device, the grounding terminal and the terminal slot of the iron core are all located on the same center line, and the grounding terminal is located between the press-fitting device and the terminal slot of the iron core; When in working state, the clamping and rotating device transports the grounding terminal in the vertical state to the initial position of the clamping and rotating device, the clamping device clamps the grounding terminal and transports it to above the terminal slot of the iron core, the pressing device descends and presses against the grounding terminal to a first preset distance for pre-pressing, and the pressing device remains pressed against the grounding terminal, the clamping device releases the grounding terminal and resets, and the pressing device presses against the grounding terminal and descends to a second preset distance for tightening.

2. The ground terminal press-fitting machine according to claim 1, characterized in that: The clamping and rotating device includes a first sliding structure, a rotating driving member, a first slide and a first clamping assembly. The first sliding structure is horizontally arranged on the machine platform, the rotating driving member can be slidably arranged on the first sliding structure, the first slide can be rotatably arranged on the rotating driving member, the first clamping assembly can be slidably arranged on the first slide, and the clamping port of the first clamping assembly is arranged toward the discharge port of the punching device.

3. The ground terminal press-fitting machine according to claim 2, characterized in that: The first sliding structure includes a first fixed frame, a first slide rail and a fixed plate. The first fixed frame is horizontally arranged on the machine platform. The first slide rail is arranged on the first fixed frame. The fixed plate can be slidably arranged on the first slide rail. The rotating driving component is arranged on the fixed plate.

4. The ground terminal press-fitting machine according to claim 1, characterized in that: The clamping device comprises a second slide rail arranged along the longitudinal direction of the machine platform, a second slide table slidably arranged on the second slide rail, and a second clamping assembly arranged on the second slide table.

5. The ground terminal press-fitting machine according to claim 1, characterized in that: The press-fitting device includes a second fixed frame, a lifting drive member, a sliding plate and a pressing head. The second fixed frame is arranged on the machine platform and is located directly above the press-fitting station. The lifting drive member is arranged on the second fixed frame. The sliding plate can be slidably arranged on the second fixed frame, and the output end of the lifting drive member is connected to the sliding plate. The pressing head is arranged on a side of the sliding plate away from the lifting drive member, and the pressing head is arranged toward the iron core.

6. The ground terminal press-fitting machine according to claim 5, characterized in that: The grounding terminal includes a horizontal arm and a vertical arm, the horizontal arm and the vertical arm are connected in a "cross" shape, and a through hole is provided on the end surface of the pressure head facing the iron core, and the aperture of the through hole is larger than the length of the vertical arm and smaller than the length of the horizontal arm.

7. The ground terminal press-fitting machine according to claim 5, characterized in that: A pressure sensor for detecting pressure is provided in the pressure head; and / or a grating ruler for measuring the press-fitting displacement distance is provided on one side of the second fixing frame.

8. The ground terminal press-fitting machine according to claim 1, characterized in that: The ground terminal press-fitting machine further comprises a detection device for measuring the conduction between the ground terminal and the iron core, the detection device is arranged on the machine platform and located on one side of the press-fitting device, the detection device comprises a first test probe and a second test probe, the first test probe is electrically connected to the ground terminal, and the second test probe is tested with the iron core; and / or, The ground terminal press-fitting machine further comprises a height detection device for detecting the height of the upper end surface of the ground terminal, wherein the height detection device is arranged on the machine platform and located on one side of the press-fitting device; and / or, At least one warning light is disposed on the platform, and the warning light is located on the other side of the platform away from the punching device.

9. The ground terminal press-fitting machine according to claim 1, characterized in that: The ground terminal press machine also includes a conveying device for conveying the iron core. The conveying device includes a third slide rail arranged along the longitudinal direction of the machine platform and a mounting seat slidably arranged on the third slide rail. The iron core is fixed on the mounting seat.

10. The ground terminal press-fitting machine according to claim 1, characterized in that: The grounding terminal also includes a machine cover and a feeding device. The machine cover is arranged on the machine platform. The feeding device is arranged on the machine cover and is located at one side of the feed port of the punching device for feeding the grounding terminal.

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