Magnetic core clamping mechanism for inductor winding

Abstract

The utility model discloses a magnetic core clamping mechanism for inductance winding, which comprises a winding supporting piece and two clamping pieces, the two clamping pieces are oppositely arranged on the supporting piece, the clamping parts of the two clamping pieces are oppositely arranged, and the clamping parts of the two clamping pieces are used for respectively clamping and fixing two ends of a magnetic core. Shielding pieces are arranged on the clamping parts of the two clamping pieces, and when the magnetic core is clamped and fixed, the shielding pieces can shield pin welding parts on the magnetic core; according to the utility model, the situation of poor contact caused by adhesion of external dust before welding is avoided, so that the inductor quality is improved, the magnetic cores with different specifications can be clamped, corresponding clamping parts do not need to be configured for the magnetic cores with different specifications, transmission parts are reduced, the clamping action response speed is high, and the inductor production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of inductor manufacturing, in particular to a magnetic core clamping mechanism for inductor winding. Background Art

[0002] In the prior art, in order to improve the production efficiency of inductors, automated assembly equipment is generally used for inductor production. The automated equipment is generally provided with a winding mechanism, which includes a winding fixture and a wire supply device. The winding fixture is used to clamp the magnetic core, and the wire supply device is used to feed the wire to the magnetic core. When winding, the magnetic core is placed on the winding fixture for fixing, and the winding fixture is driven to rotate around the axis to drive the magnetic core to rotate accordingly. The wire is fed to the magnetic core through the wire supply device and wound around the magnetic core. When the winding is completed, the magnetic core is transferred to the welding station for pin welding. At present, since the winding fixture only fixes the magnetic core to complete the winding, the winding fixture only applies clamping force to both sides of the magnetic core, and the pin welding part of the clamped magnetic core is exposed, it is easy for external dust to adhere to the pin welding part of the magnetic core before welding, and the pin welding part is prone to poor contact, which reduces the quality of the inductor. Utility Model Content

[0003] The utility model aims to provide a magnetic core clamping mechanism for inductor winding, which can prevent external dust from adhering to the pin welding position of the magnetic core, thereby improving the quality of the inductor.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A magnetic core clamping mechanism for inductor winding comprises a winding support and two clamping members, wherein the two clamping members are arranged on the support in an opposing manner, and the clamping parts of the two clamping members are arranged relatively, and the clamping parts of the two clamping members are used to clamp and fix the two ends of the magnetic core respectively, and shielding members are arranged on the clamping parts of the two clamping members, and when the magnetic core is clamped and fixed, the shielding members can shield the pin welding part on the magnetic core.

[0006] On the basis of the above technical solution, the present invention can be improved as follows:

[0007] Furthermore, the two clamping members are rotatably connected to the support member, and the two clamping members are located on the same rotation axis. When the magnetic core is clamped and fixed, a winding channel for winding the wire is formed between the clamping parts of the two clamping members.

[0008] Furthermore, the two clamping members are both pneumatic fingers with the same structure, the pneumatic fingers have openable and closable jaws, the jaws serve as the clamping parts of the clamping members, and the shielding member is arranged on the jaws of the pneumatic fingers.

[0009] Furthermore, the clamping jaw of the pneumatic finger includes two clamping arms, and the two clamping arms can move away from or close to each other to achieve opening or closing.

[0010] Furthermore, the thickness of the clamping arm of the pneumatic finger is greater than the thickness of the magnetic core.

[0011] Furthermore, a positioning groove which can cooperate with the magnetic core is provided on the closing side of the clamping arm of the pneumatic finger.

[0012] Furthermore, the shielding member is a shielding sheet, which is detachably connected to the top surface of the clamping arm of the pneumatic finger and extends out of the closed side of the clamping arm of the pneumatic finger.

[0013] Furthermore, two driving members are arranged on the supporting member, wherein one driving member is drivingly connected to one of the clamping members, and the other driving member is drivingly connected to the other clamping member.

[0014] Compared with the prior art, the utility model technology has the following advantages:

[0015] (1) The utility model provides two clamping members to clamp and fix the magnetic core respectively, and a shielding member is provided on the clamping part of the clamping member, so that when the magnetic core is clamped and fixed, the shielding member can shield the pin welding part on the magnetic core, thereby preventing the occurrence of poor contact caused by the adhesion of external dust before welding, thereby improving the inductance quality;

[0016] (2) The clamping member of the utility model adopts pneumatic fingers, which can simplify the clamping structure and adapt to the clamping of magnetic cores of different specifications. There is no need to configure corresponding clamping components for magnetic cores of different specifications, which reduces the number of transmission components and has a fast clamping action response speed, which is conducive to improving the production efficiency of inductors. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 Schematic diagram of the structure of the magnetic core clamping mechanism used for inductor winding in this embodiment.

[0019] Markings on the accompanying drawings: 1-winding seat, 2-winding frame, 3-first driving member, 4-second driving member, 5-first pneumatic finger, 6-second pneumatic finger, 7-winding channel, 8-first baffle, 9-second baffle. DETAILED DESCRIPTION

[0020] The following is a further description of the specific embodiments of the present invention in conjunction with the accompanying drawings. The description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each embodiment of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] See also Figure 1 The utility model relates to a magnetic core clamping mechanism for inductor winding, which comprises a winding support and two clamping members arranged on the winding support in an opposing manner, wherein one clamping member is used for clamping one end of the magnetic core, and the other clamping member is used for clamping the other end of the magnetic core, and the clamping member has an openable and closable clamping portion.

[0022] Specifically, the winding support includes a winding seat 1 and a winding frame 2, which are both arranged at the winding station of the machine and are arranged relative to each other; one of the clamping members is rotatably connected to the winding seat 1, and the other clamping member is rotatably connected to the winding frame 2, so that the two clamping members are on the same rotation axis, and the clamping parts of the two clamping members are opposite to each other; for the convenience of description, the two clamping members are respectively named as the first clamping member and the second clamping member, the first clamping member is rotatably connected to the winding seat 1, and the second clamping member is rotatably connected to the winding frame 2.

[0023] In specific implementation, the clamped magnetic core in this embodiment is a rectangular structure magnetic block, the middle part of the magnetic core is the winding part, and the four right angles on the top surface of the magnetic core are the pin welding parts after winding, namely the first pin welding part, the second pin welding part, the third pin welding part and the fourth pin welding part. The first pin welding part and the second pin welding part are located at one end of the length direction of the magnetic core, and the third pin welding part and the fourth pin welding part are located at the other end of the length direction of the magnetic core; the clamping part of the first clamping member clamps one end of the length direction of the magnetic core, and the clamping part of the second clamping member clamps the other end of the length direction of the magnetic core to complete the clamping and fixing of the magnetic core; the two clamping members are driven to rotate synchronously by the driving member, so as to drive the magnetic core to rotate accordingly around the rotation axis of the clamping member, and the wire is wound around the winding part of the magnetic core along the length direction of the magnetic core, and a winding channel 7 for winding the wire is formed between the clamping parts of the two clamping members.

[0024] In the present embodiment, two driving members are provided, namely a first driving member 3 and a second driving member 4. The first driving member 3 is mounted on the winding seat 1 and is drivingly connected to the first clamping member, and the second driving member 4 is mounted on the winding frame 2 and is drivingly connected to the second clamping member. Both driving members are servo motors with the same structure. The rotation speeds of the two servo motors should be the same so that the two clamping members rotate at the same speed to form the same torque at both ends of the length direction of the magnetic core, thereby driving the magnetic core to rotate and avoiding breakage due to unequal forces when the magnetic core rotates.

[0025] In this embodiment, the two clamping members are both pneumatic fingers with the same structure, namely the first pneumatic finger 5 and the second pneumatic finger 6. Both pneumatic fingers are prior art, and the pneumatic fingers have openable and closable jaws, which serve as the clamping part of the clamping member. When clamping the magnetic core, the jaws of the first pneumatic finger 5 are opposite to the jaws of the second pneumatic finger 6, and a winding channel 7 for winding the wire is formed between the jaws of the two pneumatic fingers. The jaws of the first pneumatic finger 5 are close to each other and fit with the two side surfaces at one end of the length direction of the magnetic core, and the jaws of the second pneumatic finger 6 are close to each other and fit with the two side surfaces at the other end of the length direction of the magnetic core, so as to form a clamping force at both ends of the length direction of the magnetic core to complete the clamping.

[0026] By using pneumatic fingers as clamping parts, the clamping structure can be simplified and can adapt to the clamping of magnetic cores of different specifications. There is no need to configure corresponding clamping components for magnetic cores of different specifications, which reduces transmission components, and the clamping action responds quickly, which is conducive to improving the production efficiency of inductors.

[0027] In order to prevent dust from falling on the pin welding part of the magnetic core before welding, a first shielding piece is provided on the clamping part of the first clamping piece, and a second shielding piece is provided on the clamping part of the second clamping piece. The two shielding pieces are used to cover the pin welding part of the magnetic core to block dust and ensure the quality of subsequent pin welding.

[0028] Specifically, the clamping jaws of each pneumatic finger include two clamping arms, which can move away from or close to each other to achieve opening or closing, and the inner sides of the two clamping arms are closed sides. The closed sides of the clamping arms are provided with positioning grooves. When clamping, the positioning grooves on the clamping arms cooperate with the ends of the magnetic core to position and clamp the magnetic core, thereby improving the clamping accuracy and efficiency; the top surfaces of the two clamping arms of the first pneumatic finger 5 are detachably connected with a first baffle 8 as a first shielding member, and the first baffle 8 extends out of the closed side of the clamping arm of the first pneumatic finger 5; the top surfaces of the two clamping arms of the second pneumatic finger 6 are detachably connected with a second baffle 9 as a second shielding member, and the second baffle 9 extends out of the closed side of the clamping arm of the second pneumatic finger 6.

[0029] When the two pneumatic fingers clamp and fix the magnetic core, the first baffles 8 on the two clamping arms of the first pneumatic finger 5 respectively cover the first pin welding part and the second pin welding part of the magnetic core, and the second baffles 9 on the two clamping arms of the second pneumatic finger 6 respectively cover the third pin welding part and the fourth pin welding part of the magnetic core; a wire passage for the wire to pass through is formed between the first baffles 8 on the two clamping arms of the first pneumatic finger 5 and between the second baffles 9 on the two clamping arms of the second pneumatic finger 6; the two pneumatic fingers are driven to rotate synchronously by the driving member, driving the magnetic core to rotate accordingly around the rotation axis of the pneumatic fingers, and the wire is wound around the winding part of the magnetic core along the length direction of the magnetic core; after the winding is completed, the wound magnetic core is adsorbed by an external material picking mechanism, the two pneumatic fingers are opened, and the material picking mechanism is transferred to the welding station for welding. The material picking mechanism is a material picking arm in the prior art, and a negative pressure head is connected to the material picking arm. The magnetic core is adsorbed and transferred to the welding station by the negative pressure head. According to actual conditions, other material picking mechanisms in the prior art can also be used instead.

[0030] In this embodiment, the first baffle 8 is installed on the top surface of the two clamping arms of the first pneumatic finger 5 by bolts, and the second baffle 9 is installed on the top surface of the two clamping arms of the second pneumatic finger 6 by bolts, so that the corresponding baffle can be replaced to cover the pin welding part of the magnetic core according to different regulations.

[0031] It should be noted that the thickness of the clamp arm of the pneumatic finger should be greater than the thickness of the magnetic core to increase the contact area between the clamp arm and the magnetic core, provide clamping stability, and ensure that the baffle installed on the clamp arm can cover the pin welding part of the magnetic core.

[0032] The above-mentioned embodiments of the utility model are not intended to limit the protection scope of the utility model, and the implementation methods of the utility model are not limited to these. All other various forms of modifications, replacements or changes made to the above-mentioned structure of the utility model based on the above-mentioned contents of the utility model, in accordance with the common technical knowledge and customary means in the field, without departing from the above-mentioned basic technical ideas of the utility model, should fall within the protection scope of the utility model.

Claims

1. A magnetic core clamping mechanism for inductor winding, It is characterized in that It includes a winding support member and two clamping members, which are arranged on the support member in an opposing manner, and the clamping parts of the two clamping members are arranged relatively. The clamping parts of the two clamping members are used to clamp and fix the two ends of the magnetic core respectively. Shielding members are arranged on the clamping parts of the two clamping members. When the magnetic core is clamped and fixed, the shielding members can shield the pin welding part on the magnetic core.

2. The magnetic core clamping mechanism for inductor winding according to claim 1, It is characterized in that The two clamping members are rotatably connected to the supporting member, and the two clamping members are located on the same rotation axis. When the magnetic core is clamped and fixed, a winding channel for winding the wire is formed between the clamping parts of the two clamping members.

3. The magnetic core clamping mechanism for inductor winding according to claim 2, It is characterized in that The two clamping members are both pneumatic fingers with the same structure. The pneumatic fingers have openable and closable clamping jaws, which serve as the clamping parts of the clamping members. The shielding member is arranged on the clamping jaws of the pneumatic fingers.

4. The magnetic core clamping mechanism for inductor winding according to claim 3, It is characterized in that The clamping jaw of the pneumatic finger comprises two clamping arms, and the two clamping arms can move away from or approach each other to achieve opening or closing.

5. The magnetic core clamping mechanism for inductor winding according to claim 4, It is characterized in that The thickness of the clamping arm of the pneumatic finger is greater than the thickness of the magnetic core.

6. The magnetic core clamping mechanism for inductor winding according to claim 5, It is characterized in that The closing side of the clamping arm of the pneumatic finger is provided with a positioning groove which can cooperate with the magnetic core.

7. The magnetic core clamping mechanism for inductor winding according to claim 6, It is characterized in that The shielding member is a shielding sheet, which is detachably connected to the top surface of the clamping arm of the pneumatic finger and extends out of the closed side of the clamping arm of the pneumatic finger.

8. The magnetic core clamping mechanism for inductor winding according to any one of claims 2 to 7, It is characterized in that The support member is provided with two driving members, one of which is drivingly connected to one of the clamping members, and the other driving member is drivingly connected to the other clamping member.

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