Magnetic core forming calibration structure

Abstract

The utility model discloses a magnetic core forming calibration structure, which belongs to the field of magnetic cores and comprises a hollow support block, a hollow calibration column is arranged above the hollow support block and consists of a plurality of calibration sub-columns, and a slide rail device for sliding the calibration sub-columns is arranged in the hollow support block. An adjustable push rod device for fixing the positions of the calibration sub-columns is arranged at the hollow position of the hollow calibration column. Compared with the prior art, the device has the advantages that the displacement spring of the adjustable push rod device enables each cylindrical surface of the calibration sub-column to be tightly connected to the hollow position of a semi-finished product, the cylindrical surfaces can be changed along with the change of the size of the semi-finished product, the calibration sub-column is retracted inwards through the pull rope device after the forming processing is finished, and the calibration sub-column can be conveniently adjusted. And the situation of product deformation cannot occur when the finished product is taken down.

Description

Technical Field

[0001] The utility model relates to the field of magnetic cores, in particular to a magnetic core molding calibration structure. Background Art

[0002] In the use of electrical appliances, in order to improve the performance of the appliances, magnetic cores are usually added to the appliances to make the magnetic field generated by the current stronger and more concentrated. The production process of the magnetic core includes cutting, molding, sintering and other steps. Among them, the molding step is the process that has the greatest impact on product quality. Therefore, in the process of magnetic core molding, the semi-finished products cut out must be calibrated by the magnetic core molding calibration structure before the molding process can be carried out.

[0003] The existing magnetic core molding calibration structure generally adds a hollow calibration column on top of the hollow support block. The hollow position inside the semi-finished product passes through the outer wall of the hollow calibration column for position calibration, and then it is stacked up in sequence, and finally fixed and the finished product is removed.

[0004] Although this core forming calibration structure can calibrate the semi-finished core, the size of the required hollow calibration column will change when facing semi-finished products of different sizes. After replacing the product, it is necessary to make a suitable hollow calibration column before continuing the core forming process. After the processing is completed, when removing the product, it is easy to cause a certain deformation, resulting in changes in the space inside the core, which may seriously affect the overall performance of the core. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the existing hollow calibration column cannot freely change its external dimensions as the product changes, and may be damaged and deformed when the finished product is taken down.

[0006] In order to solve the above technical problems, the technical solution provided by the utility model is: a magnetic core molding calibration structure, including a hollow support block, a hollow calibration column is provided above the hollow support block, the hollow calibration column is composed of a plurality of calibration sub-columns, a slide rail device for sliding the calibration sub-columns is provided inside the hollow support block, and an adjustable push rod device for fixing the position of the calibration sub-column is provided at the hollow position of the hollow calibration column.

[0007] As an improvement, the slide rail device includes a multi-directional slide groove located in the hollow position of the hollow support block and a movable slider corresponding to the multi-directional slide groove. The movable slider is located at the bottom of the calibration column, and a block groove is provided in the middle of the multi-directional slide groove for passing the movable slider.

[0008] As an improvement, the adjustable push rod device includes a push rod top block that seals the block groove and a pull rope mechanism for adjusting the position of the calibration column. The push rod top block is connected to the calibration column through a displacement spring. The bottom surface of the push rod top block is provided with a fixing stud for fixing the push rod top block, and the fixing stud passes through the bottom surface of the multi-directional slide groove.

[0009] As an improvement, the pull rope mechanism includes a position fixing rod and a pull rope, the upper and lower ends of the fixing rod are respectively provided with a fixing rod handle and a fixing threaded column, a spring baffle is provided in the middle of the rod surface of the fixing rod, a rebound spring is provided between the spring baffle and the top end of the push rod top block, and the rebound spring passes through the fixed threaded column of the fixing rod.

[0010] As an improvement, the fixed threaded column end of the fixing rod passes through the fixed stud and the push rod top block, the threaded end of the fixed threaded column is provided with a nut plate corresponding to the thread, the interior of the fixed stud is provided with a nut plate through hole for storing the nut plate, the bottom surface of the nut plate through hole is provided with a fixing pin for fixing the nut plate, and the surface of the nut plate is provided with a pin groove corresponding to the fixing pin.

[0011] As an improvement, the multi-directional sliding groove is connected to the fixed stud via a bolt structure, and the inner wall of the calibration sub-column is connected to the rod surface below the fixed rod handle via a pull rope.

[0012] Compared with the prior art, the utility model has the following advantages: the displacement spring of the adjustable push rod device of the device enables the various cylindrical surfaces of the calibration sub-column to be tightly connected to the hollow position of the semi-finished product, and can change with the change of the size of the semi-finished product. After the forming process is completed, the calibration sub-column is retracted inwardly through the pull rope device, so that the finished product will not be deformed when it is removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a general structural diagram of a magnetic core forming calibration structure of the utility model.

[0014] Figure 2 It is a general structural sectional view of a magnetic core forming calibration structure of the utility model.

[0015] Figure 3 The utility model discloses a structure diagram of a pull rope mechanism of a magnetic core forming calibration structure.

[0016] Figure 4 It is an exploded diagram of a rope pulling mechanism of a magnetic core forming calibration structure of the utility model.

[0017] Figure 5 This is a structural diagram of a hollow support block of a magnetic core forming calibration structure of the utility model.

[0018] Figure 6This is a calibration column structure diagram of a magnetic core forming calibration structure of the utility model.

[0019] As shown in the figure: 1. Hollow support block; 2. Hollow calibration column; 21. Calibration sub-column; 3. Slide rail device; 31. Multi-directional slide groove; 32. Moving slider; 33. Block groove; 4. Adjustable push rod device; 41. Push rod top block; 42. Pull rope mechanism; 421. Position fixing rod; 4211. Fixed rod handle; 4212. Fixed threaded column; 4213. Spring baffle; 4214. Rebound spring; 4215. Nut plate; 4216. Nut plate through hole; 4217. Fixed pin; 4218. Pin groove; 422. Pull rope; 43. Displacement spring; 44. Fixed stud. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] As the instruction manual Figure 1 , 2 As shown in , 5 and 6, it includes a hollow support block 1, a hollow calibration column 2 is provided above the hollow support block 1, and the hollow calibration column 2 is composed of several calibration sub-columns 21, a slide rail device 3 for sliding the calibration sub-columns 21 is provided inside the hollow support block 1, and an adjustable push rod device 4 for fixing the position of the calibration sub-columns 21 is provided in the hollow position of the hollow calibration column 2, the slide rail device 3 includes a multi-directional slide groove 31 located at the hollow position of the hollow support block 1 and a movable slider 32 corresponding to the multi-directional slide groove 31, the movable slider 32 is located at the bottom of the calibration sub-column 21, and a block groove 33 passing through the movable slider 32 is provided in the middle of the multi-directional slide groove 31, the multi-directional slide groove 31 is connected to the fixed stud 44 through a bolt structure, the push rod top block 41 is connected to the calibration sub-column 21 through a displacement spring 43, and the calibration sub-column 21 is tightly attached to the hollow position of the semi-finished product through the displacement spring 43, so that the hollow position of each cutting piece semi-finished product is located on the same center line.

[0022] As the instruction manual Figure 2 , 3As shown in , 4, the adjustable push rod device 4 includes a push rod top block 41 for sealing the block groove 33 and a pull rope mechanism 42 for adjusting the position of the calibration column 21, the bottom surface of the push rod top block 41 is provided with a fixing stud 44 for fixing the push rod top block 41, the fixing stud 44 passes through the bottom surface of the multi-directional slide groove 31, the pull rope mechanism 42 includes a position fixing rod 421 and a pull rope 422, the upper and lower ends of the fixing rod 421 are respectively provided with a fixing rod handle 4211 and a fixing threaded column 4212, a spring baffle 4213 is provided in the middle of the rod surface of the fixing rod 421, a rebound spring 4214 is provided between the spring baffle 4213 and the top of the push rod top block 41, the rebound spring 4214 passes through the fixing threaded column 4212 of the fixing rod 421, and the fixed threaded column 4212 end of the fixing rod 421 passes through the fixing stud 44 and the push rod. The rod top block 41, the threaded end of the fixed threaded column 4212 is provided with a nut plate 4215 corresponding to the thread, the interior of the fixed stud 44 is provided with a nut plate through hole 4216 for storing the nut plate 4215, the bottom surface of the nut plate through hole 4216 is provided with a fixing pin 4217 for fixing the nut plate 4215, and the disk surface of the nut plate 4215 is provided with a pin groove 4218 corresponding to the fixing pin 4217, the multi-directional sliding groove 31 is connected to the fixing stud 44 through a bolt structure, and by rotating the fixing rod handle 4211, the pull rope 422 is wrapped around the rod surface of the fixing rod 421, and the calibration column 21 is contracted inwardly accordingly, and the position of the calibration column 21 is fixed after contraction through the riveting connection of the fixing pin 4217 and the pin groove 4218, and the fixing rod 421 automatically rebounds under the elastic force of the rebound spring 4214.

[0023] When the utility model is implemented, the movable slider 32 under each calibration sub-column 21 is slid from the block groove 33 into each slide groove of the multi-directional slide groove 31, and the calibration sub-column 21 is assembled to form a hollow calibration column 2; the fixing stud 44 is screwed into the screw hole at the bottom end of the multi-directional slide groove 31, and the surfaces of the push rod top block 41 above the fixing stud 44 are parallel to the entrance surface of the multi-directional slide groove 31, so that the push rod top block 41 blocks the block groove 33, and the displacement spring 43 is put between the side hole of the push rod top block 41 and the connecting column on the side of the calibration sub-column 21, so that each calibration sub-column 21 is pushed to the top of the multi-directional slide groove 31 by the displacement spring 43; the fixing threaded column 4212 of the fixing rod 421 is put on the rod surface The rebound spring 4214 is compressed to the side wall of the spring baffle 4213, and the fixed threaded column 4212 with the rebound spring 4214 is inserted into the through hole of the push rod top block 41, and the nut plate 4215 is screwed on the fixed threaded column 4212 in the nut plate through hole 4216, and the pin groove 4218 above the nut plate 4215 is stuck on the outer wall of the fixing pin 4217. Under the action of the rebound spring 4214, the pin groove 4218 of the fixing rod 421 is locked and connected with the fixing pin 4217 to prevent the fixing rod 421 from falling. Tie pull ropes to each pull rope hole under the handle 4211 of the fixing rod, and the other end of the pull rope is tied to the pull rope hole on the inner wall of the calibration column 21.

[0024] When in use, according to the size of the center hole of the semi-finished product after cutting, the fixing rod 421 is pressed down, and the size of the hollow calibration column 2 is adjusted by rotating the fixing rod handle 4211. After the adjustment is completed, the fixing rod 421 is loosened so that the pin groove 4218 of the nut plate 4215 below the fixing rod 421 is stuck on the outer wall of the fixing pin 4217, and the fixing rod 421 rebounds to its original position under the action of the rebound spring 4214. The calibration sub-columns 21 are pushed by the displacement spring 43 to prevent the calibration sub-columns 21 from deviating during operation. Place the semi-finished raw material on the wall for calibration, and then start the magnetic core molding process. After completion, press the fixing rod 421 again, rotate the fixing rod 421 forward, so that the pull rope will stretch and contract the calibration column 21 inward to avoid scratching the finished product when taking the material. After taking down the molded product, press the fixing rod 421 again, reverse the fixing rod 421, slide the position of the calibration column 21 to its original position, loosen the fixing rod, and fix the size of the hollow calibration column 2 by riveting the fixing pin 4217 and the pin slot 4218. Then repeat the above operation and carry out the magnetic core molding process again.

[0025] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A magnetic core forming calibration structure, comprising a hollow support block (1), a hollow calibration column (2) being arranged above the hollow support block (1), characterized in that: The hollow calibration column (2) is composed of a plurality of calibration sub-columns (21); a slide rail device (3) for sliding the calibration sub-columns (21) is provided inside the hollow support block (1); and an adjustable push rod device (4) for fixing the position of the calibration sub-columns (21) is provided at the hollow position of the hollow calibration column (2).

2. A magnetic core forming calibration structure according to claim 1, characterized in that: The slide rail device (3) comprises a multi-directional slide groove (31) located in the hollow position of the hollow support block (1) and a movable slider (32) corresponding to the multi-directional slide groove (31); the movable slider (32) is located at the bottom of the calibration column (21); and a block groove (33) passing through the movable slider (32) is provided in the middle of the multi-directional slide groove (31).

3. A magnetic core forming calibration structure according to claim 2, characterized in that: The adjustable push rod device (4) comprises a push rod top block (41) for sealing the block groove (33) and a pull rope mechanism (42) for adjusting the position of the calibration column (21); the push rod top block (41) is connected to the calibration column (21) via a displacement spring (43); a fixing stud (44) for fixing the push rod top block (41) is provided on the bottom surface of the push rod top block (41); and the fixing stud (44) passes through the bottom surface of the multi-directional slide groove (31).

4. A magnetic core forming calibration structure according to claim 3, characterized in that: The pull rope mechanism (42) comprises a position fixing rod (421) and a pull rope (422); the upper and lower ends of the fixing rod (421) are respectively provided with a fixing rod handle (4211) and a fixing threaded column (4212); a spring baffle (4213) is provided in the middle of the rod surface of the fixing rod (421); a rebound spring (4214) is provided between the spring baffle (4213) and the top end of the push rod top block (41); and the rebound spring (4214) passes through the fixing threaded column (4212) of the fixing rod (421).

5. A magnetic core forming calibration structure according to claim 4, characterized in that: The end of the fixed threaded column (4212) of the fixed rod (421) passes through the fixed stud (44) and the push rod top block (41), the threaded end of the fixed threaded column (4212) is provided with a nut plate (4215) corresponding to the thread, the interior of the fixed stud (44) is provided with a nut plate through hole (4216) for storing the nut plate (4215), the bottom surface of the nut plate through hole (4216) is provided with a fixing pin (4217) for fixing the nut plate (4215), and the disk surface of the nut plate (4215) is provided with a pin groove (4218) corresponding to the fixing pin (4217).

6. A magnetic core forming calibration structure according to claim 4, characterized in that: The multi-directional sliding groove (31) is connected to the fixing stud (44) via a bolt structure, and the inner wall of the calibration sub-column (21) is connected to the rod surface below the fixing rod handle (4211) via a pull rope (422).

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