Lead bending clamp for radio frequency interference filter

Abstract

The utility model discloses a lead bending clamp for a radio frequency interference filter, which comprises an upper seat, a lower seat and a bending guide rod, a lower seat countersunk groove is arranged in the middle of the upper surface of the lower seat, lower seat lead grooves are respectively arranged at two ends of the lower seat countersunk groove on the upper surface of the lower seat, the upper seat is arranged on the upper surface of the lower seat, and bending guide plates are respectively arranged on two sides of the lower seat. The bending guide plate is provided with bending guide holes, one ends of two transverse bending guide rods are arranged in the two bending guide holes respectively, the two bending guide rods are close to the two lower seat lead grooves respectively, and the two bending guide rods are parallel to each other and perpendicular to the length direction of the lower seat lead grooves. By designing the lower seat, the upper seat and the bending guide rod which are matched with one another, the radio frequency interference filter and the lead of the radio frequency interference filter can be reliably positioned during use, the bending process mainly depends on a clamp, the requirement on personal experience is not high, higher-quality bending processing can be realized, and the efficiency is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to a processing tool of radio frequency interference filter, especially to a lead bending clamp for radio frequency interference filter. BACKGROUND

[0002] As a filter element, the radio frequency interference filter is used to suppress the conducted interference signal and the radiated interference signal in the signal line, and is generally installed at the port of a shielding body during use, the radio frequency interference filter is welded with leads at two ends and is used as an input end and an output end respectively and is connected in series on the signal line to realize the function of suppressing the interference signal in the signal line.

[0003] In some application occasions, in order to facilitate connection, the leads at two ends of the radio frequency interference filter need to be bent, such as shown in the figure, the ends of the leads 2 at two ends of the radio frequency interference filter 3 are bent to form loop parts 1 facilitating bolt and nut connection. Figure 1 For this radio frequency interference filter 3, the leads 2 need to be bent after the filter is processed, how to accurately bend the leads 2 at the fixed position, how to accurately bend the leads 2 to a fixed diameter, and how to ensure that the unbent part of the leads 2 remains straight, these three problems become the difficulties of bending the leads 2 of the radio frequency interference filter 3.

[0004] The conventional lead bending mode is generally as follows: the lead bending position is measured by a caliper, the lead is bent manually by tweezers or other tools at the bending position, and then the lead is adjusted according to the size measurement. This mode has the following defects: after the bending position is measured by the caliper, the bending position cannot be guaranteed to be consistent with the position measured by the caliper when the lead is bent; the manual bending of the lead by the tweezers or other tools makes the consistency of the diameter of the bent lead very poor and often cannot meet the diameter requirement; when the lead is bent, the part of the lead that is not required to be bent cannot be well fixed and will be bent together; slow operation is required, the steps are complicated, and the efficiency is low. TECHNICAL FIELD

[0005] The utility model aims at solving the above problems and provides a lead bending clamp for radio frequency interference filter with good bending quality and high efficiency.

[0006] The utility model realizes the above-mentioned purpose through the following technical solutions:

[0007] The utility model relates to a lead bending fixture for radio frequency interference filter, both ends of the radio frequency interference filter are equipped with lead respectively, the lead bending fixture for radio frequency interference filter includes upper seat, lower seat and bending guide rod, the upper surface middle part of lower seat is equipped with lower seat sunken groove for placing the radio frequency interference filter, the upper surface of lower seat is equipped with lower seat lead slot for placing the lead and extending to the corresponding edge of lower seat and opening respectively at the both ends of lower seat sunken groove, two lower seat lead slots are on the same straight line, the upper seat is placed on the upper surface of lower seat, the both sides of lower seat are equipped with bending guide plate respectively, the bending guide plate is equipped with bending guide hole, one end of two transverse bending guide rods is placed in two bending guide holes respectively, two bending guide rods are close to two lower seat lead slots respectively, two bending guide rods are parallel to each other and perpendicular to the length direction of lower seat lead slot.

[0008] As preferred, in order to facilitate processing and application, the lower surface middle part of the upper seat is equipped with an upper seat sunken groove, the upper seat sunken groove and the lower seat sunken groove jointly form an inner cavity for placing the radio frequency interference filter, the lower surface of the upper seat is equipped with an upper seat lead slot extending to the corresponding edge of the upper seat and opening at the both ends of the upper seat sunken groove, the upper seat lead slot and the corresponding lower seat lead slot jointly form an inner cavity for placing the lead; the upper surface of the lower seat is equipped with two vertical guide rods, and the lower surface of the upper seat is equipped with two vertical guide through holes, the two vertical guide rods pass through the two vertical guide through holes respectively.

[0009] As preferred, in order to facilitate processing of a more standard bending shape, the lead bending fixture for radio frequency interference filter further comprises a bending plate, one end of the bending plate is equipped with a semicircular bending positioning slot.

[0010] The utility model has the advantages that:

[0011] The utility model discloses a lower seat, an upper seat and a bending guide rod are designed to cooperate with each other, the radio frequency interference filter and its lead can be positioned reliably when in use, then the lead is bent first, the bending guide rod is installed, and finally the lead is pressed around the bending guide rod to form a ring part for connection, the bending processing process mainly depends on the fixture, the requirement for personal experience is not high, higher quality bending processing can be realized, and the efficiency is higher. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a kind of radio frequency interference filter's front view structural schematic diagram;

[0013] Figure 2 It is the lower seat and the bending guide rod of the lead bending fixture for radio frequency interference filter described in the utility model's overhead perspective structural schematic diagram;

[0014] Figure 3 is the bottom view structure schematic diagram of the upper seat of the lead bending clamp for the radio frequency interference filter of the utility model;

[0015] Figure 4 is the three-dimensional structure schematic diagram of the bending plate of the lead bending clamp for the radio frequency interference filter of the utility model;

[0016] Figure 5 is one of the three-dimensional structure schematic diagram of the application of the lead bending clamp for the radio frequency interference filter of the utility model;

[0017] Figure 6 is the second three-dimensional structure schematic diagram of the application of the lead bending clamp for the radio frequency interference filter of the utility model. DETAILED DESCRIPTION

[0018] The utility model will be further described below in combination with the drawings:

[0019] As Figure 1 shown, the radio frequency interference filter 3 of the utility model is respectively provided with lead 2 at both ends, and the end of lead 2 is respectively bent to form ring part 1 for facilitating bolt nut connection; as Figures 2-4 shown, the lead bending clamp for the radio frequency interference filter of the utility model includes upper seat 10, lower seat 7 and bending guide rod 6, the upper surface middle part of lower seat 7 is provided with lower seat sink groove 8 for placing radio frequency interference filter 3, the upper surface of lower seat 7 is respectively provided with lower seat lead slot 9 for placing lead 2 and extending to the corresponding edge of lower seat 7 and opening at the position of both ends of lower seat sink groove 8, two lower seat lead slots 9 are located on the same straight line, upper seat 10 is placed on the upper surface of lower seat 7, the both sides of lower seat 7 are respectively provided with bending guide plate 4, bending guide hole (not visible in the drawing) is arranged on bending guide plate 4, one end of two transverse bending guide rods 6 is respectively placed in two bending guide holes, two bending guide rods 6 are respectively close to two lower seat lead slots 9, two bending guide rods 6 are parallel to each other and perpendicular to the length direction of lower seat lead slot 9.

[0020] As preferred, in order to facilitate processing and application, the lower middle of the upper seat 10 is provided with an upper seat sink 11, and the upper seat sink 11 and the lower seat sink 8 jointly form an inner cavity for placing the radio frequency interference filter 3. The lower surface of the upper seat 10 at positions on both ends of the upper seat sink 11 is provided with an upper seat lead slot 12 extending to the corresponding edge of the upper seat 10 and opening, and the upper seat lead slot 12 and the corresponding lower seat lead slot 9 jointly form an inner cavity for placing the lead 2. The upper surface of the lower seat 7 is provided with two vertical guide rods 5, and the lower surface of the upper seat 10 is provided with two vertical guide through holes 13, and the two vertical guide rods 5 respectively pass through the two vertical guide through holes 13. In order to facilitate the processing of a more standard curved shape, the lead bending jig for the radio frequency interference filter further comprises a bending plate 14, and one end of the bending plate 14 is provided with a semicircular bending positioning slot 15.

[0021] As shown in Figures 1-6 , in use, first, the two bending guide rods 6 are removed, the lower part of the radio frequency interference filter 3 to be processed is placed in the lower seat sink 8 of the lower seat 7, the lower parts of the two leads 2 are respectively placed in the two lower seat lead slots 9, then the upper seat 10 is moved from top to bottom, the two vertical guide rods 5 respectively pass through the two vertical guide through holes 13, until the lower surface of the upper seat 10 contacts the upper surface of the lower seat 7, at this time, the lower part of the radio frequency interference filter 3 is placed in the upper seat sink 11 of the upper seat 10, and the upper parts of the two leads 2 are respectively placed in the two upper seat lead slots 12, realizing reliable positioning of the radio frequency interference filter 3 and the two leads 2. Then one of the leads 2 is bent upwards, the bending position is at the outer slot wall of the corresponding upper seat lead slot 12, then one of the bending guide rods 6 is inserted into the corresponding bending guide hole, and then the bending plate 14 is used to press the lead 2 around the circumferential outer wall of the bending guide rod 6, so that the lead 2 is bent around the circumferential outer wall of the bending guide rod 6. When bent to near semicircular, the bending positioning slot 15 of the bending plate 14 is aligned with the outside of the lead 2 and slowly pressed until the slot wall of the bending positioning slot 15 and the outer wall of the lead 2 are mutually fitted, and in this process, the bending shape of the lead 2 is more standard. Then the bending plate 14 is gradually rotated, and in the rotation process, the lead 2 which has not been bent is gradually bent until the lead 2 is completely bent in place to form a loop part 1, and the bending operation of the lead 2 is completed. Then the same operation is performed on the other lead 2 to complete the bending operation of the other lead 2. Finally, the two bending guide rods 6 are removed, the upper seat 10 is removed, and the radio frequency interference filter 3 is taken out, to obtain the radio frequency interference filter 3 as shown in Figure 1 , the whole process mainly depends on the jig, and the requirement for personal experience is not high, and higher quality bending processing can be realized, and the efficiency is higher.

[0022] The above embodiments are only preferred embodiments of the present application, and are not a limitation on the technical solutions of the present application. Any technical solutions that can be realized on the basis of the above embodiments without creative labor should be considered to fall within the scope of protection of the present application.

Claims

1. A lead bending clamp for a radio frequency interference filter, wherein the radio frequency interference filter has leads at both ends, characterized in that: The lead bending fixture for the radio frequency interference filter includes an upper seat, a lower seat, and bending guide rods. The upper part of the lower seat has a lower seat recess for placing the radio frequency interference filter. The upper part of the lower seat has lower seat lead slots at both ends of the lower seat recess for placing the lead wires and extending to the corresponding edges of the lower seat with openings. The two lower seat lead slots are located on the same straight line. The upper seat is placed on top of the lower seat. Bending guide plates are provided on both sides of the lower seat. Bending guide holes are provided on the bending guide plates. One end of each of the two transverse bending guide rods is placed in the two bending guide holes. The two bending guide rods are close to the two lower seat lead slots. The two bending guide rods are parallel to each other and perpendicular to the length direction of the lower seat lead slots.

2. The lead bending clamp for a radio frequency interference filter according to claim 1, characterized in that: The upper seat has an upper seat recess in the middle of its lower part. The upper seat recess and the lower seat recess together form an inner cavity for placing the radio frequency interference filter. The lower part of the upper seat has upper seat lead wire grooves extending to the corresponding edges of the upper seat and opening at both ends of the upper seat recess. The upper seat lead wire grooves and the corresponding lower seat lead wire grooves together form an inner cavity for placing the lead wires. The lower seat has two vertical guide rods on its upper part and two vertical guide holes on its lower part. The two vertical guide rods pass through the two vertical guide holes respectively.

3. The lead bending clamp for a radio frequency interference filter according to claim 1 or 2, characterized in that: The lead bending fixture for the radio frequency interference filter also includes a bending plate, one end of which is provided with a semi-circular bending positioning groove.

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