Press foot tool for coil

Abstract

A presser foot tool for a coil comprises a pressing base, a pushing mechanism and a pressing head, and the pressing base is provided with a fixing groove used for containing a coil framework; the pushing mechanism is arranged above the pressing seat; the pressing head is arranged on the pushing mechanism and driven by the pushing mechanism to ascend and descend. Wherein a mounting hole is formed in the coil framework, a part of pins are inserted into the mounting hole, positioning bolts are arranged on the two sides of the top of the pressing base and used for limiting the pressing head, a protrusion is arranged at the bottom of the pressing head, an angle correction hole is formed in the bottom of the protrusion, the angle correction hole is provided with an inward-inverted radian, and calibration is conducted while the pins are pressed through the angle correction hole. According to the utility model, when the foot is pressed, the pin can be calibrated, and the two procedures of foot pressing and angle calibration are combined, so that the processing flow is saved, the working efficiency is improved, the pin can be prevented from being bent in the foot pressing process, the product percent of pass is improved, the production cost is reduced after the procedures are simplified, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coil processing, in particular to a presser foot tooling for a coil. Background Art

[0002] Coils are a relatively sophisticated product among electronic components. Usually, the wire diameter used in coils is very thin. Enameled wires below φ0.1 are very common. Thinner wire diameters have higher requirements for the production process. Therefore, the current coil production process generally adopts hanging pin winding, that is, the pins are first inserted into a part of the frame, and then the pins are pressed into the frame after winding and soldering to meet customer requirements.

[0003] This type of process puts a test on the pin pull force, which is an important indicator of the qualified coil products. If the presser foot is too deep, the pin pull force is sufficient, but the lead wire is not loose enough, and the wire is prone to breakage during customer use. If the presser foot is too shallow, the pin pull force is insufficient and the product is unqualified. In summary, coil products have very high requirements on the accuracy of the presser foot, which directly affects the qualified rate of the product.

[0004] For this purpose, we propose a presser foot tool for coils. Utility Model Content

[0005] In view of the shortcomings of the above-mentioned existing production technology, the applicant provides a coil presser foot tooling, which can accurately control the depth of the presser foot, so that the product pin tension remains consistent, while keeping the lead wire loose, which can simultaneously meet the customer's requirements for pin tension and lead wire looseness, greatly improve the qualified rate of coil products, and greatly reduce the probability of wire breakage due to insufficient lead wire looseness. At the same time, the tooling is designed with a two-handed operation button, which can effectively prevent work injuries caused by misoperation, greatly improve the safety of the presser foot operation, and is suitable for mass production.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A presser foot tool for a coil, comprising:

[0008] A press seat, provided with a fixing groove, for placing the coil skeleton;

[0009] A pushing mechanism is arranged above the pressure seat;

[0010] The pressure head is arranged on the pushing mechanism, and the pressure head is driven to rise and fall by the pushing mechanism;

[0011] Among them, a mounting hole is provided on the coil frame, and a pin is inserted into the mounting hole. Positioning bolts are provided on both sides of the top of the pressure seat to limit the pressure head. A protrusion is provided at the bottom of the pressure head, and an angle correction hole is provided at the bottom of the protrusion. The angle correction hole is provided with an inverted arc, and calibration can be achieved through the angle correction hole while the pressure foot is pressed.

[0012] It is further characterized by:

[0013] The pressure seat is detachably arranged on the base, and the pushing mechanism is arranged on the base.

[0014] The pressure seat is installed on the base through bolts, and the pushing mechanism is a cylinder.

[0015] The pushing mechanism is controlled by a two-handed operating button, and two two-handed operating buttons are provided and are respectively arranged on both sides of the pressure seat.

[0016] The top of the pressure seat is provided with a threaded hole matching the positioning bolt, which is used to adjust the height of the positioning bolt and thus adjust the stroke of the pressure head.

[0017] The number of the angle correction holes is the same as the number of the pins.

[0018] The press seat is provided with baffles on both sides of the fixing groove, and arc grooves are provided on the baffles to facilitate the taking of the coil skeleton.

[0019] The beneficial effects of the utility model are as follows:

[0020] The utility model has a compact and reasonable structure and is easy to operate. The coil skeleton is placed in the fixed groove of the pressing seat, and the pushing mechanism drives the pressing head to move downward, and the pin slides into the angle correction hole through the inverted arc in the angle correction hole. As the pressing head moves downward, the pin is pressed downward through the angle correction hole to a specified size, and the pin can be calibrated at the same time, combining the two processes of pressing the pin and correcting the angle into one, saving the processing flow, facilitating improving the work efficiency, and preventing the pin from being bent during the pressing process, thereby improving the product qualification rate. After streamlining the process, the production cost is greatly reduced, and the production efficiency is greatly improved.

[0021] At the same time, the utility model also has the following advantages:

[0022] (1) The depth of the presser foot can be accurately controlled to keep the pin tension of the product consistent while keeping the lead wire loose. This can simultaneously meet the customer's requirements for pin tension and lead wire looseness, greatly improving the qualified rate of coil products and significantly reducing the probability of wire breakage due to insufficient lead wire looseness.

[0023] (2) At the same time, this tooling is designed with a two-handed operation button, which can effectively prevent work injuries caused by misoperation, greatly improve the safety of the presser foot operation, and is suitable for mass production.

[0024] (3) The pressure seat is detachably arranged on the base, and a fixing groove is arranged on the pressure seat for fixing the coil frame. The pressure seat can be quickly replaced, and coil frames of different sizes can be fixed by replacing different pressure seats. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the front structure of the presser foot of the utility model.

[0026] Figure 2 for Figure 1 Enlarged schematic diagram at point A in the middle.

[0027] Figure 3 It is a schematic diagram of the rear structure of the presser foot of the utility model.

[0028] Figure 4 for Figure 3 Enlarged schematic diagram of point B in the middle.

[0029] Figure 5 It is a top view of the pressure seat of the utility model.

[0030] Figure 6 It is a bottom view of the pressure head of the utility model.

[0031] Among them: 1. Base; 2. Pressure seat; 201. Threaded hole; 202. Positioning bolt; 203. Fixing slot; 3. Pushing mechanism; 4. Pressure head; 401. Protrusion; 402. Angle correction hole; 5. Coil frame; 501. Mounting hole; 6. Pin; 7. Two-handed operation button. DETAILED DESCRIPTION

[0032] The specific implementation of the present utility model is described below in conjunction with the accompanying drawings.

[0033] like Figure 1-Figure 6 As shown, a presser foot tool for a coil includes a base 1, a press seat 2, a pushing mechanism 3, a press head 4, a coil skeleton 5 and a pin 6.

[0034] The pressing seat 2 is detachably arranged on the base 1, and a fixing groove 203 is arranged on the pressing seat 2 for fixing the coil frame 5. The pressing seat 2 is connected to the base 1 by bolts, and the pressing seat 2 can be quickly replaced. By replacing different pressing seats 2, coil frames 5 of different sizes can be fixed. The pressing seat 2 is provided with baffles on both sides of the fixing groove 203, and an arc groove is provided on the baffle to facilitate the taking of the coil frame 5.

[0035] The push mechanism 3 is arranged on the base 1, and the push mechanism 3 is above the pressure seat 2. The pressure head 4 is arranged on the push mechanism 3. The push mechanism 3 drives the pressure head 4 to move downward or upward. A protrusion 401 is arranged in the middle of the bottom of the pressure head 4. A plurality of angle correction holes 402 are arranged at intervals at the bottom of the protrusion 401. The number of the angle correction holes 402 is the same as the number of the pins 6. The push mechanism 3 can be a cylinder, etc. The angle correction hole 402 is provided with an inverted arc, and the pin 6 is smoothly inserted into the angle correction hole 402. The angle correction hole 402 can be used to achieve

[0036] Threaded holes 201 are provided on both sides of the top of the pressing seat 2, and positioning bolts 202 are matched with the threaded holes 201. The pressing depth of the pin 6 can be adjusted by adjusting the height of the positioning bolts 202. The top of the positioning bolts 202 can contact the bottom of the pressing head 4, thereby limiting the position of the pressing head 4. The positioning bolts 202 cooperate with the pressing head 4 to fine-tune the stroke of the pressing head 4, thereby accurately controlling the pressing depth of the pin 6.

[0037] The coil frame 5 is provided with a mounting hole 501, and the pin 6 is installed in the mounting hole 501 of the coil frame 5. When the pin 6 is first inserted into the mounting hole 501 of the coil frame 5, the pin 6 is only inserted into a part of the mounting hole 501 of the coil frame 5, and is not safely inserted into the mounting hole 501. Then the pin 6 is soldered, and the pin 6 is deformed to varying degrees due to the lead traction after soldering. The base 1 is provided with a two-handed operating button 7, and the two-handed operating buttons 7 are respectively arranged on both sides of the press seat 2. The movement of the pushing mechanism 3 is controlled by the two-handed operating buttons 7. When the left and right hands are respectively placed on the two-handed operating buttons 7 on the left and right sides, the pushing mechanism 3 works, and the pushing mechanism 3 drives the pressure head 4 to move downward for press-fitting. The two-handed operating button 7 can prevent damage caused by accidental touch.

[0038] During press-fitting, the coil skeleton 5 is placed in the fixed groove 203 of the press seat 2, and the pushing mechanism 3 drives the pressing head 4 to move downward, and the pin 6 slides into the angle correction hole 402 through the inverted arc of the angle correction hole 402. As the pressing head 4 moves downward, the pin 6 is pressed downward through the angle correction hole 402 to the specified size, and the pin 6 can be calibrated at the same time, combining the two processes of pressing and correcting the angle into one, saving the processing flow, facilitating improving work efficiency, and preventing the pin 6 from being bent during the pressing process, thereby improving the product qualification rate. After streamlining the process, the production cost is greatly reduced, and the production efficiency is greatly improved.

[0039] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the protection scope of the utility model.

Claims

1. A presser foot tool for a coil, characterized in that: include: A press seat (2) is provided with a fixing groove (203) for placing a coil frame (5); A pushing mechanism (3) is arranged above the pressure seat (2); The pressure head (4) is arranged on the pushing mechanism (3), and the pressure head (4) is driven to rise and fall by the pushing mechanism (3); The coil frame (5) is provided with a mounting hole (501), and a pin (6) is partially inserted into the mounting hole (501). Positioning bolts (202) are provided on both sides of the top of the pressure seat (2) for limiting the position of the pressure head (4). A protrusion (401) is provided at the bottom of the pressure head (4). An angle correction hole (402) is provided at the bottom of the protrusion (401). The angle correction hole (402) is provided with an inverted arc, and calibration is achieved by the angle correction hole (402) while the pressure foot is being pressed.

2. A presser foot tool for coils as claimed in claim 1, characterized in that: The pressure seat (2) is detachably arranged on the base (1), and the pushing mechanism (3) is arranged on the base (1).

3. A presser foot tool for coils as claimed in claim 2, characterized in that: The pressure seat (2) is mounted on the base (1) by means of bolts, and the pushing mechanism (3) is a cylinder.

4. A presser foot tool for coils as claimed in claim 3, characterized in that: The pushing mechanism (3) is controlled by a two-handed operating button (7); two two-handed operating buttons (7) are provided and are respectively arranged on both sides of the pressing seat (2).

5. A presser foot tool for coils as claimed in claim 1, characterized in that: The top of the pressure seat (2) is provided with a threaded hole (201) matching the positioning bolt (202) and used to adjust the height of the positioning bolt (202) and thus adjust the stroke of the pressure head (4).

6. A presser foot tool for coils as claimed in claim 1, characterized in that: The number of the angle correction holes (402) is the same as the number of the pins (6).

7. A presser foot tool for coils as claimed in claim 1, characterized in that: The press seat (2) is provided with baffles on both sides of the fixing groove (203), and arc-shaped grooves are provided on the baffles to facilitate the taking of the coil frame (5).

Images