A variable-frequency reactor claw terminal crimping device

Abstract

The present invention relates to the technical field of terminal crimping fixtures, and particularly to a variable-frequency reactor claw terminal crimping device, which includes a mounting frame, a reactor fixing seat, and a terminal claw positioning base. The reactor fixing seat is fixed on the bottom plate of the mounting frame, and the terminal claw positioning base is installed on the reactor fixing seat. A flattening structure for flattening the claws and a wire fixing structure for holding the wire are respectively installed on the reactor fixing seats at both ends of the terminal claw positioning base. A flattening structure is installed on the top plate of the mounting frame for flattening the claws after the flattening structure flattens the claws. The present invention greatly improves the working efficiency and reduces the labor intensity of operators; the appearance consistency of the variable-frequency reactor claw wire-wrapping products produced is high, and the disconnection of the connecting wires is almost eliminated, improving the product quality; the qualified rates of high voltage and impedance are high, and the electrical performance is very stable.

Description

Technical Field

[0001] The present invention relates to the technical field of terminal crimping fixtures, and particularly to a variable-frequency reactor claw terminal crimping device. Background Art

[0002] Currently, in the field of reactor manufacturing, variable-frequency reactors (mainly in the air-conditioning industry) generally have complex and diverse terminal shapes. Among them, the claw-type terminal is one of the most common types. For example, Figure 1 As shown, during the manufacturing process, first use pliers to flatten the claw 7. After wrapping the aluminum wire 9 inside the claw 7, then use a hammer to flatten the claw 7. During the hammering process, continuously observe whether the cross-section of the terminal of the claw 7 wrapping the aluminum wire 9 can reach the effect shown in Figure 2 After confirmation, use a caliper to measure whether the height dimension is qualified.

[0003] The current drawbacks of this manufacturing method are that due to its special shape, high requirements for dimensions, appearance, electrical performance, etc. after crimping, the manufacturing process is difficult, time-consuming, and it is difficult to ensure the consistency of electrical performance and appearance. Summary of the Invention

[0004] The purpose of the present invention is to provide a variable-frequency reactor claw terminal crimping device to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A variable-frequency reactor claw terminal crimping device includes a mounting frame, a reactor fixing base, and a terminal claw positioning base. The reactor fixing base is fixed on the bottom plate of the mounting frame, and the terminal claw positioning base is installed on the reactor fixing base. On the reactor fixing base at both ends of the terminal claw positioning base, a flattening structure for flattening the claw and a wire fixing structure for pulling the wire are respectively installed. On the top plate of the mounting frame, a flattening structure is installed for flattening the claw after the flattening structure flattens the claw.

[0007] Preferably, the flattening structure includes a first driving component, a slide rail guide plate, and a slide rail. The first driving component is fixed at one end of the reactor fixing base, and a slide rail connecting piece is installed at the end of the driving component push rod. The slide rail connecting piece is installed with a slide rail. There are two groups of slide rail guide plates, which are installed on the terminal claw positioning base, and the slide rail slides along the two slide rail guide plates.

[0008] Preferably, the wire fixing structure includes a second driving component and a wire hanging plate. The second driving component is fixed at the other end of the reactor fixing base, and a connecting piece is installed at the end of the driving component push rod. The wire hanging plate is installed at the bottom of the connecting piece and slides along the surface of the terminal claw positioning base.

[0009] Preferably, the flattening structure includes a third driving component, which is installed on the top plate of the mounting frame, and an arc-shaped pressing head is installed at the end of the push rod of the driving component.

[0010] Preferably, the upper surface of the terminal claw positioning base has a wire clamping groove, and the lower surface of the wire hanging plate has a wire hanging groove.

[0011] Preferably, a limiting plate for limiting the movement of the connecting piece is installed on the terminal claw positioning base.

[0012] Preferably, the first driving component and the second driving component are arranged staggeredly. When the second driving component drives the connecting piece to move, one side of the wire hanging plate can slide close to one of the slide rail guide plates.

[0013] Preferably, the first driving component and the second driving component adopt air cylinders.

[0014] Preferably, the third driving component adopts an air cylinder.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] The crimping device of the present invention has greater force than manual work. The force size can be controlled by adjusting the air pressure to ensure the crimping height of the terminal, replacing the original manual knocking, reducing the manual operation intensity, and saving the operation time; further reducing the operation process, combining the original processes of pinching the claw with a pair of pliers, flattening the aluminum wire in the claw with a rubber hammer, and manual appearance observation and dimension measurement, reducing the labor time and personnel input; further mechanical operation makes the production process of the variable frequency reactor consistent, facilitating quality control, greatly improving the first-pass qualification rate, and reducing the waste of time and cost caused by rework; further reducing the dependence on skilled workers and realizing automated production.

[0017] In the present invention, the work efficiency is greatly improved, and the labor intensity of the operator is reduced; the appearance consistency of the variable frequency reactor claw-wrapped wire products produced is high, and the disconnection of the connecting wire is almost eliminated, improving the product quality; the pass rate of high voltage and impedance is high, and the electrical performance is very stable. Description of the Drawings

[0018] Figure 1 Schematic diagram of the production line and claw flattening and wrapping of the reactor in the prior art;

[0019] Figure 2 For Figure 1 Production effect diagram;

[0020] Figure 3 Schematic diagram of the structure of the present invention;

[0021] Figure 4 For the present invention Figure 3Rear schematic diagram;

[0022] Figure 5 Is the upward view schematic diagram of the present invention;

[0023] Figure 6 Is the front view schematic diagram of the present invention;

[0024] Figure 7 Is the present invention Figure 3 The enlarged schematic diagram at position A in;

[0025] Figure 8 Is the schematic diagram of the terminal claw positioning base of the present invention;

[0026] Figure 9 Is the schematic diagram of the assembly of the second drive component and the terminal claw positioning base of the present invention;

[0027] Figure 10 Is the schematic diagram of the first drive component of the present invention;

[0028] Figure 11 Is the present invention Figure 9 The schematic diagram after removing the terminal claw positioning base.

[0029] In the figure: 1 mounting frame, 2 reactor fixing seat, 3 terminal claw positioning base, 30 wire slot, 4 first drive component, 41 slide rail guide plate, 42 slide rail, 5 second drive component, 50 wire hanging plate, 51 connecting piece, 52 limiting plate, 53 wire hanging groove, 6 third drive component, 60 arc-shaped pressing head, 7 claw, 8 variable frequency reactor, 9 aluminum wire. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figures 1 to 11 , the present invention provides a technical solution:

[0032] A variable frequency reactor claw terminal crimping device, including a mounting frame 1, a reactor fixing seat 2 and a terminal claw positioning base 3. The reactor fixing seat 2 is fixed on the bottom plate of the mounting frame 1, and the terminal claw positioning base 3 is installed on the reactor fixing seat 2. A flattening structure for flattening the claw 7 and a wire fixing structure for pulling the wire 9 are respectively installed on the reactor fixing seats 2 at both ends of the terminal claw positioning base 3. A flattening structure is installed on the top plate of the mounting frame 1 for flattening the claw 7 after the flattening structure flattens the claw 7.

[0033] Specifically, the leveling structure includes a first driving component 4, a slide rail guide plate 41 and a slide rail 42. The first driving component 4 is fixed to one end of the reactor fixing seat 2, and a slide rail connecting piece 40 is installed at the end of the driving component push rod. The slide rail connecting piece 40 is installed with the slide rail 42. There are two groups of slide rail guide plates 41, which are installed on the terminal claw positioning base 3, and the slide rail 42 slides along the two slide rail guide plates 41.

[0034] Specifically, the wire fixing structure includes a second driving component 5 and a wire hanging plate 50. The second driving component 5 is fixed to the other end of the reactor fixing seat 2, and a connecting piece 51 is installed at the end of the driving component push rod. The wire hanging plate 50 is installed at the bottom of the connecting piece 51 and slides along the surface of the terminal claw positioning base 3.

[0035] Specifically, the flattening structure includes a third driving component 6. The third driving component 6 is installed on the top plate of the mounting frame 1, and an arc-shaped pressing head 60 is installed at the end of the driving component push rod.

[0036] Specifically, the upper surface of the terminal claw positioning base 3 has a wire clamping groove 30, and the lower surface of the wire hanging plate 50 has a wire hanging groove 53.

[0037] Specifically, a limiting plate 52 for limiting the movement of the connecting piece 51 is installed on the terminal claw positioning base 3. In this embodiment, each component such as the slide rail 42, the wire hanging plate 50, and the arc-shaped pressing head 60 is installed at a reasonable designed position to avoid mutual interference during operation.

[0038] Specifically, the first driving component 4 and the second driving component 5 are arranged staggeredly. When the second driving component 5 drives the connecting piece 51 to move, one side of the wire hanging plate 50 can slide close to one of the slide rail guide plates 41.

[0039] Specifically, in this embodiment, the first driving component 4, the second driving component 5 and the third driving component 6 all adopt air cylinders.

[0040] In the present invention:

[0041] 1. Now, as long as the variable-frequency reactor 8 is placed into the crimping device according to the requirements, so that a part of it is installed in Figure 6 B, start the crimping device, stop the crimping device, and manually take it out to obtain a product with a satisfactory crimping height and crimping shape, and almost all the electrical performance tests are qualified;

[0042] Combined the original multiple operation steps (the original process flow was that workers inserted the aluminum wire 9 into the jaw 7 → used a pair of needle-nose pliers to squeeze the jaw 7 tightly (the aluminum wire 9 was in close contact with the jaw 7 on three sides) → used a rubber hammer to knock and flatten the aluminum wire 9 in the jaw 7 → visually inspected and measured the dimensions manually → conducted electrical performance tests. The new process flow is that workers insert the aluminum wire 9 into the jaw 7 → the terminal crimping device crimps → electrical performance tests. Through fixed process machinery operations, the human risk is reduced, the first-pass yield is extremely high, the efficiency is improved, the interference of human factors is reduced, rework is reduced, and the labor intensity is lowered).

[0043] 2. The crimping fixture is divided into a mechanical part and an electrical control part

[0044] The mechanical part mainly consists of an arc-shaped pressing head 60, a first driving component 4, a second driving component 5, and a terminal jaw positioning base 3. Among them, the terminal jaw positioning base 3 is customized according to the size of the jaw 7, and the arc-shaped pressing head 60 is the final size obtained through multiple verifications of the final shape of the jaw and the deformation of the jaw 7 during the downward pressing of the pressing head

[0045] The process of the electrical control part is that the program set in the PLC controls the movement of different cylinders at different times through solenoid valves, and judges the position of the cylinders through the magnetic induction switches on the cylinders and feeds back to the PLC, so as to realize the closed-loop operation of the entire fixture movement (this is a common technology controlled by PLC in the electrical field and will not be elaborated here);

[0046] The wire fixing structure is responsible for holding the aluminum wire 9 to ensure that the aluminum wire 9 is in close contact with the jaw 7 on three sides during the entire crimping process, and the aluminum wire 9 will not move due to any crimping action, thus affecting the crimping consistency. The flattening structure provides a flat pushing action to flatten the terminal of the jaw 7, providing a bedding for the vertical crimping of the arc-shaped pressing head 60 (if the terminal of the jaw 7 is not flattened in advance, it is difficult for the arc-shaped pressing head 60 to directly crimp the jaw 7 to the state shown in the cross-sectional schematic diagram of the jaw terminal wrapping the aluminum wire 9, that is Figure 2 the state shown).

[0047] Before the arc-shaped pressing head 60 presses down, the aluminum wire 9 has been held by the wire fixing structure to ensure that the aluminum wire 9 does not move during the crimping process. After the wire fixing structure holds the aluminum wire 9, the flattening structure flattens the jaw 7, accurately fixing the contact position between the aluminum wire 9 and the jaw 7, and avoiding the situation that the aluminum wire 9 moves relative to the jaw 7 during the crimping process, resulting in too small a pulling force of the final product's jaw 7 wrapping the aluminum wire 9 and unstable electrical performance of the product.

[0048] As Figures 3 to 7As shown, first fix the variable-frequency reactor 8 to the reactor fixing base 2. At this time, 7 is located at the edge of 30. Then manually pass the aluminum wire 9 through the wire hanging groove 53, control the second driving component 5, that is, the second cylinder drives 51 to move, thereby driving the wire hanging plate 50 to move, and pushing (or pulling) the aluminum wire 9 to the wire clamping groove 30. At this time, the wire hanging groove 53 is flush with the wire clamping groove 30, and the aluminum wire 9 is in close contact with the clamping jaw 7. The second cylinder pauses. Then control the first driving component 4, that is, the first cylinder drives 40 to move, so that the slide rail 42 moves, pushing the clamping jaw 7 flat, so that the aluminum wire 9 is wrapped inside the clamping jaw 7. Then the first cylinder returns to its original position. Then control the third driving component 6, that is, the third cylinder drives 60 to press down, so as to wrap the terminal part of the clamping jaw 7 around the cross-section of the aluminum wire 9, that is Figure 2 the state shown, take it out, and then control the second and third cylinders to return to their original positions, and make it in such a cycle.

[0049] The crimping device of the present invention has greater force than manual work. The force size can be controlled by adjusting the air pressure to ensure the crimping height of the terminal, replacing the original manual knocking, reducing the manual operation intensity and saving the operation time; further reducing the operation process, combining the original processes of squeezing the clamping jaw 7 with a pair of long-nose pliers, flattening the aluminum wire 9 inside the clamping jaw 7 with a rubber hammer, and manual appearance observation and dimension measurement, etc., reducing the labor time and personnel input; further mechanical operation makes the production process of the variable-frequency reactor 8 consistent, facilitating quality control, greatly improving the first-pass rate, and reducing the waste of time and cost caused by rework; further reducing the dependence on skilled workers, creating favorable conditions for the automated production of the whole product.

[0050] The present invention is a crimping jig for the terminal of the clamping jaw 7. The improvements of this crimping jig compared with the original manual crimping are as follows: First, it greatly improves the work efficiency and reduces the labor intensity of the operator; Second, the appearance of the products produced is highly consistent, and the disconnection of the connecting wire is almost eliminated, improving the product quality; Third, the pass rate of high voltage and impedance is high, and the electrical performance is very stable.

[0051] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A variable-frequency reactor claw terminal crimping device, comprising a mounting frame (1), a reactor fixing base (2), and a terminal claw positioning base (3), characterized in that: The reactor fixing base (2) is fixed on the bottom plate of the mounting frame (1). The terminal claw positioning base (3) is mounted on the reactor fixing base (2). On the reactor fixing base (2) at both ends of the terminal claw positioning base (3), a flattening structure for flattening the claw (7) and a wire fixing structure for pulling the aluminum wire (9) are respectively installed. On the top plate of the mounting frame (1), a flattening structure is installed for flattening the claw (7) after the flattening structure flattens it. The flattening structure includes a first driving component (4), a slide rail guide plate (41) and a slide rail (42). The first driving component (4) is fixed at one end of the reactor fixing base (2), and a slide rail connecting piece (40) is installed at the end of the driving component push rod. The slide rail connecting piece (40) is installed with a slide rail (42). The slide rail guide plates (41) are in two groups and are installed on the terminal claw positioning base (3). The slide rail (42) slides along the two slide rail guide plates (41). The wire fixing structure includes a second driving component (5) and a wire hanging plate (50). The second driving component (5) is fixed at the other end of the reactor fixing base (2), and a connecting piece (51) is installed at the end of the driving component push rod. The wire hanging plate (50) is installed at the bottom of the connecting piece (51) and slides along the surface of the terminal claw positioning base (3). The flattening structure includes a third driving component (6). The third driving component (6) is installed on the top plate of the mounting frame (1), and an arc-shaped pressing head (60) is installed at the end of the driving component push rod. The first driving component (4) and the second driving component (5) are arranged staggeredly. When the second driving component (5) drives the connecting piece (51) to move, one side of the wire hanging plate (50) can slide close to one of the slide rail guide plates (41).

2. The variable-frequency reactor jaw terminal crimping device according to claim 1, characterized in that: The upper surface of the terminal claw positioning base (3) has a wire clamping groove (30), and the lower surface of the wire hanging plate (50) has a wire hanging groove (53).

3. A variable-frequency reactor jaw terminal crimping device according to claim 1, characterized in that: A limiting plate (52) for limiting the movement of the connecting piece (51) is installed on the terminal claw positioning base (3).

4. A variable-frequency reactor jaw terminal crimping device according to any one of claims 1-3, characterized in that: The first driving component (4) and the second driving component (5) adopt air cylinders.

5. The crimping device for the claw terminal of the variable-frequency reactor according to claim 2, wherein: The third driving component (6) adopts an air cylinder.

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