Automatic glue smearing machine for new energy variable-voltage magnetic core

Abstract

The utility model relates to an automatic glue smearing machine for a new energy variable-voltage magnetic core. Comprising a case base, a workbench on the case base, a cantilever fixed above the workbench, an upper magnetic core jig and a lower magnetic core jig, the jig surface of the upper magnetic core jig and the jig surface of the lower magnetic core jig are oppositely arranged up and down; the upper magnetic core jig is suspended and fixed at the extension arm end of the cantilever through a pushing air cylinder; a central rotating shaft is arranged in the middle of the bottom surface of the lower magnetic core jig and is connected with an eccentric driving mechanism in a lower case seat after penetrating through a shaft hole of the workbench; the gluing device can solve the technical problems of unstable and uneven gluing quality in the prior art.

Description

Technical Field

[0001] The utility model relates to the field of transformer manufacturing, in particular to an automatic glue spreading machine for a new energy transformer magnetic core. Background Art

[0002] With the popularity of new energy vehicles and the increasing demand for charging of new energy charging piles, the manufacturing of transformers for charging piles is particularly important. The current transformers for charging piles are mainly assembled through parts such as upper magnetic cores, lower magnetic cores and wire packages. Since the upper magnetic cores and lower magnetic cores are mostly composed of block-shaped magnetic cores of iron powder cores, the magnetic cores are glued and bonded during assembly. Now the glue is mostly applied by manual labor, and the two magnetic cores are ground against each other to complete the smoothing of the glue surface to meet the corresponding requirements for inductance performance. The failure to ensure the adhesion of the contact surface of the magnetic core can easily cause the magnetic core to fall off. At the same time, the uneven glue surface often causes poor inductance and increases the product defective rate. At the same time, the manual operation efficiency is not high, so there are problems such as uncontrollable quality, high defective rate of production operations, and low production efficiency.

[0003] On December 28, 2021, China Utility Model Patent Authorization Announcement No. CN215313534U disclosed a magnetic core gluing machine with an automatic feeding mechanism, which solves the technical problems of inaccurate manual placement of existing magnetic cores and uneven glue dispensing. It is provided with a base plate, and a feeding support plate, a magnetic core conveying device and a magnetic core transfer robot are provided on the bottom plate. A magnetic feeding robot is installed at the upper end of the feeding support plate. The magnetic feeding robot is provided with a hard magnetic strip and an iron clamp for clamping the magnetic core. The hard magnetic strip and the iron clamp adsorb the magnetic core and move it to the magnetic core conveying device. The magnetic core conveying device is provided with a servo motor and a sensor. The sensor detects the gap between the magnetic cores and drives the servo motor to arrange the magnetic cores closely. An automatic glue dispensing machine is provided at the upper end of the magnetic core conveying device. The automatic glue dispensing machine can apply glue to the magnetic core, and the magnetic core coated with glue is transferred out by the magnetic core transfer robot. After the core glue coating machine uses an automatic glue dispensing machine to apply glue to the core, it is transferred out by a robot. Due to the technology, the glue coating quality is based on the comparison and control of the image of the core after glue coating taken by the visual inspection camera with the standard image of the core that has been glued. It can only control the core that is not glued or has insufficient glue coating, and the thickness of the glue layer cannot be accurately identified from the plane image, and the glue coating quality is unstable. Utility Model Content

[0004] In order to solve the technical problem of unstable and uneven glue coating quality in the prior art, the utility model provides an automatic glue coating machine for a new energy transformer magnetic core.

[0005] The utility model provides an automatic glue spreading machine for a new energy transformer magnetic core, comprising a chassis base, a workbench on the chassis base, a cantilever fixed above the workbench, an upper magnetic core jig and a lower magnetic core jig; the jig surfaces of the upper magnetic core jig and the lower magnetic core jig are both disc-shaped, have the same size, and are magnetic and can adsorb and fix the magnetic core to be processed; the jig surface of the upper magnetic core jig and the jig surface of the lower magnetic core jig are arranged relatively up and down; the upper magnetic core jig is suspended on the extended arm end of the cantilever by a pushing cylinder, and under the drive of the pushing cylinder, the upper magnetic core jig can be made to move up and down to adjust and change the distance with the lower magnetic core jig or the pressure between the two; the bottom surface of the lower magnetic core jig is in close contact with the workbench surface, and a central rotating shaft is provided in the middle of the bottom surface of the lower magnetic core jig, which passes through the shaft hole of the workbench and is connected to an eccentric driving mechanism in the chassis base below; the lower magnetic core jig can simultaneously produce two-dimensional movements of adjusting and squeezing up and down and swinging forward and backward relative to the upper magnetic core jig.

[0006] The eccentric driving mechanism includes a driving motor, a rotating disk, a shift fork connecting rod and a swing arm; the main shaft of the driving motor is fixedly connected to the center hole of the rotating disk; the swing arm is sleeved on the lower end of the above-mentioned central rotating shaft; one end of the shift fork connecting rod is movably connected to the eccentric pin on the rotating disk, and the shift fork at the other end is movably connected to the arm end of the swing arm through a pin.

[0007] The beneficial effects of the utility model are:

[0008] The utility model adopts upper and lower magnetic core jigs with magnetic properties to adsorb and fix the magnetic core to be processed; the jig surface of the upper magnetic core jig is above and below the jig surface of the lower magnetic core jig, abandoning the prior art of relatively arranging hard magnetic strips and iron clamps for manipulator whole-row loading, which is simple to operate, saves loading time, the magnetic core is not easy to be damaged, the material scrap rate is low, and the product quality can be guaranteed;

[0009] The utility model adopts a pushing cylinder to push the upper magnetic core fixture downward, and the lower magnetic core fixture adopts an eccentric driving mechanism; the air pressure of the pushing cylinder is maintained so that the glue liquid in the magnetic gap surface between the two magnetic cores to be processed can be squeezed and the bubbles in the glue liquid can be continuously discharged; the eccentric driving mechanism is adopted so that the glue liquid in the magnetic gap surface between the two magnetic cores to be processed can be rotated and applied; finally, the quality problem of the transformer caused by insufficient glue coating or uneven glue layer can be prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model.

[0011] Figure 2 It is a top view structural schematic diagram of the utility model.

[0012] Figure 3 yes Figure 1 AA cross-sectional structure schematic diagram.

[0013] Figure 4 yes Figure 1 Schematic diagram of the BB cross-sectional structure.

[0014] Explanation of the symbols in the accompanying drawings: 1. Chassis base; 2. Workbench; 3. Cantilever; 4. Upper core fixture; 5. Lower core fixture; 6. Push cylinder; 7. Center shaft; 8. Shaft hole; 9. Drive motor; 10. Turntable; 11. Fork connecting rod; 12. Swing arm; 13. Center hole; 14. Eccentric pin; 15. Pin. DETAILED DESCRIPTION

[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments so that those skilled in the art can easily implement the present invention.

[0016] like Figure 1 As shown, an automatic glue spreading machine for new energy transformer magnetic cores comprises a chassis base 1, a workbench 2 on the chassis base 1, a cantilever 3 fixed above the workbench 2, an upper magnetic core jig 4 and a lower magnetic core jig 5; the jig surfaces of the upper magnetic core jig 4 and the lower magnetic core jig 5 are both disc-shaped, of the same size, and have magnetic properties that can adsorb and fix the magnetic core to be processed; the jig surface of the upper magnetic core jig 4 and the jig surface of the lower magnetic core jig 5 are arranged opposite to each other up and down; the upper magnetic core jig 4 is suspended and fixed on the upper magnetic core jig 4 by pushing the cylinder 6 The extended arm end of the cantilever 3, driven by the push cylinder 6, can make the upper magnetic core fixture 4 move up and down to adjust the distance with the lower magnetic core fixture 5 or the pressure between the two; the bottom surface of the lower magnetic core fixture 5 is close to the workbench 2, and a central shaft 7 is provided in the middle of the bottom surface of the lower magnetic core fixture 5, which passes through the workbench shaft hole 8 and is connected to the eccentric driving mechanism in the chassis base 1 below; so that the lower magnetic core fixture 5 can simultaneously produce two-dimensional movements of adjusting the extrusion up and down and swinging forward and backward relative to the upper magnetic core fixture 4;

[0017] The eccentric drive mechanism includes a drive motor 9, a rotating disk 10, a shift fork connecting rod 11 and a swing arm 12; the main shaft of the drive motor 9 is fixedly connected to the central hole 13 of the rotating disk; the swing arm 12 is sleeved on the lower end of the central rotating shaft 7; one end of the shift fork connecting rod 11 is movably connected to the eccentric pin 14 on the rotating disk 10, and the shift fork at the other end is movably connected to the arm end of the swing arm 12 through a pin 15;

[0018] When the magnetic core parts to be processed that need to be coated with glue are arranged symmetrically and neatly in equal numbers on the jig surfaces of the upper magnetic core jig 4 and the lower magnetic core jig 5, and the magnetic gap surfaces of the magnetic core to be processed are kept opposite to each other, the magnetic core to be processed is tightly adsorbed and fixed by the magnetic jig surface, and an automatic glue dispensing tool is used to dispense glue on the magnetic gap surface of the magnetic core to be processed; the solenoid valve is opened for ventilation, and the cylinder 6 is pushed to drive the upper magnetic core jig 4 to press down. When the magnetic gap surfaces of the magnetic core to be processed, which are adsorbed and fixed by the upper magnetic core jig 4 and the lower magnetic core jig 5, respectively, fit together for extrusion and glue dispensing, the air pressure of the air circuit solenoid valve is adjusted to accurately control the gap distance of the extrusion surface; the air pressure of the cylinder 6 is continuously maintained and the eccentric drive mechanism is turned on; through the joint action of the two, the upper magnetic core jig 4 and the lower magnetic core jig 5 simultaneously produce a two-dimensional movement of adjusting and squeezing the glue liquid up and down and swinging forward and backward; the glue liquid between the magnetic gap surfaces of the magnetic core to be processed is rubbed by kneading and swiping, and finally the glue liquid is evenly and firmly smeared on the magnetic gap surfaces of the magnetic core to be processed.

[0019] Furthermore, the central rotating shaft 7 of the lower magnetic core fixture 5 passes through the shaft hole 8 of the workbench and is locked by a limit plate, which can prevent the lower magnetic core fixture 5 from moving up and down.

[0020] Furthermore, the pushing cylinder 6 is connected to a compressed air circuit through an air pipe and a solenoid valve.

[0021] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the scope of the claims of the utility model shall be within the scope of protection of the utility model.

Claims

1. An automatic glue spreading machine for a new energy transformer magnetic core, comprising a chassis base (1), a workbench (2) on the chassis base (1), a cantilever (3) fixed above the workbench (2), an upper magnetic core fixture (4) and a lower magnetic core fixture (5); characterized in that: The jig surfaces of the upper magnetic core jig (4) and the lower magnetic core jig (5) are both disc-shaped, of the same size, and have magnetism that can absorb and fix the magnetic core to be processed; the jig surface of the upper magnetic core jig (4) and the jig surface of the lower magnetic core jig (5) are arranged relative to each other in the upper and lower directions; the upper magnetic core jig (4) is suspended on the extended arm end of the cantilever (3) by means of a pushing cylinder (6), and under the drive of the pushing cylinder (6), the upper magnetic core jig (4) can be made to move up and down to adjust and change the distance with the lower magnetic core jig (5) or the pressure between the two; the bottom surface of the lower magnetic core jig (5) is in close contact with the surface of the workbench (2), and a central rotating shaft (7) is provided in the middle of the bottom surface of the lower magnetic core jig (5), which passes through the workbench shaft hole (8) and is connected to the eccentric driving mechanism in the chassis base (1) below; so that the lower magnetic core jig (5) can simultaneously produce two-dimensional movements of adjusting and squeezing up and down and swinging forward and backward relative to the upper magnetic core jig (4); The eccentric drive mechanism comprises a drive motor (9), a rotating disk (10), a shift fork connecting rod (11) and a swing arm (12); the main shaft of the drive motor (9) is fixedly connected to the central hole (13) of the rotating disk; the swing arm (12) is sleeved on the lower end of the central rotating shaft (7); one end of the shift fork connecting rod (11) is movably connected to an eccentric pin shaft (14) on the rotating disk (10), and the shift fork at the other end is movably connected to the arm end of the swing arm (12) through a pin (15).

2. The automatic glue spreading machine for the new energy transformer core according to claim 1 is characterized in that: The central rotating shaft (7) of the lower magnetic core fixture (5) is locked by a limit plate after passing through the workbench shaft hole (8), thereby preventing the lower magnetic core fixture (5) from moving up and down.

3. The automatic glue spreading machine for the new energy transformer core according to claim 1 is characterized in that: The pushing cylinder (6) is connected to a compressed air circuit via an air pipe and a solenoid valve.

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