Magnetic core polishing clamp

Abstract

The magnetic core polishing clamp comprises a bottom plate, a fixing frame and a top plate, two electric push rods are fixedly installed at the bottom of the top plate, the output ends of the two electric push rods are fixedly connected with a pressing plate, the top of the bottom plate is movably connected with a bearing assembly, and an abutting assembly is fixedly installed on the rear side of the right side of the fixing frame. The electric push rod and the pressing plate are arranged, and the output end of the electric push rod can drive the pressing plate to move downwards by starting the electric push rod, so that the E-shaped magnetic core placed at the top of the bottom plate can be pressed and limited, and the problem that the pressing plate cannot move downwards when the magnetic core is taken and placed is solved. The problems that a screw, a nut and an upper pressing plate need to be repeatedly disassembled and assembled according to different numbers of magnetic cores machined every time, so that inconvenience is caused, a large amount of manpower is consumed, machining efficiency is reduced, meanwhile, repeated disassembly and assembly can cause accelerated abrasion of parts, and use is affected are solved, and the effect of conveniently abutting against and limiting the magnetic cores is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic cores, in particular to a magnetic core grinding fixture. Background Art

[0002] A magnetic core refers to a sintered magnetic metal oxide composed of a mixture of various iron oxides. Manganese-zinc ferrite and nickel-zinc ferrite are typical magnetic core materials. Manganese-zinc ferrite has the characteristics of high magnetic permeability and high magnetic flux density, and has the characteristics of low loss. The EE type magnetic core needs to be ground at the end of the center column during processing. At this time, a fixture is needed to clamp and fix the EE type magnetic core.

[0003] For example, publication number CN212192688U discloses a magnetic core grinding fixture including a bottom plate, an upper pressure plate, a slide rail, a screw, a sliding clamping plate, a screw fixing end, a side wall plate, and a screw; the slide rail is vertically welded to the bottom plate, and the screw is arranged in the slide rail; the lower part of the side wall plate is fixed to the side of the bottom plate with a screw hole by bolts; the upper and lower edges of one end of the slide rail away from the side wall plate protrude backward to form a screw fixing end, and a screw hole is arranged on the screw fixing end, the screw passes through the screw hole, and a nut is screwed into the screw to fix the screw on the screw fixing end; the screw is driven to slide the sliding clamping plate in the slide rail by rotating the screw; a slot is arranged on one side of the upper pressure plate, and a plurality of slots are arranged on the upper part of the side wall plate, and the slot on the upper pressure plate can be inserted into any slot on the side wall plate, and one side of the upper pressure plate can be fixed to the screw by a nut. The utility model provides a magnetic core grinding fixture that can realize the clamping of an E-shaped magnetic core, which is convenient for the grinding tool to grind the middle column of the E-shaped magnetic core.

[0004] Based on the search of patent numbers and combined with the deficiencies in the prior art, it is found that:

[0005] Although this magnetic core grinding fixture can clamp the E-shaped magnetic core and facilitate the grinding of the E-shaped magnetic core center column by the grinding tool, when using it, it is extremely inconvenient and consumes a lot of manpower, reducing the processing efficiency. At the same time, repeated disassembly and installation will cause accelerated wear of the components, affecting their use. Utility Model Content

[0006] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide a magnetic core grinding fixture, which has the advantage of being easy to tighten and limit the magnetic core, and solves the problem that when taking and placing the magnetic core, the screw, nut and upper pressure plate need to be repeatedly disassembled and installed according to the different number of magnetic cores processed each time, which is extremely inconvenient and consumes a lot of manpower, reduces the processing efficiency, and at the same time, repeated disassembly and installation will cause accelerated wear of components, affecting the use.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a magnetic core grinding fixture, comprising a base plate, a fixed frame and a top plate, the bottom of the fixed frame is fixedly connected to the top of the base plate, the bottom of the top plate is fixedly connected to the top of the fixed frame, two electric push rods are fixedly installed on the bottom of the top plate, the output ends of the two electric push rods are fixedly connected to a pressure plate, the top of the base plate is movably connected to a bearing assembly, and a tightening assembly is fixedly installed on the rear side of the right side of the fixed frame.

[0008] As a preferred embodiment of the utility model, the bearing assembly includes a placement plate, the rear side of the top of the placement plate is fixedly connected to a back plate, the front sides of the placement plate and the top of the pressure plate are both provided with grooves, and the rear side of the back plate is in contact with the rear side of the inner wall of the fixing frame.

[0009] As a preferred embodiment of the utility model, the clamping assembly includes a servo motor, a mounting groove is opened on the right side of the rear side of the inner wall of the fixing frame, the inner wall of the mounting groove is movably connected with a connecting plate, the output end of the servo motor is fixedly connected with a screw rod, the other end of the screw rod passes through the fixing frame and the connecting plate in sequence and is movably connected to the left side of the inner wall of the mounting groove through a bearing, the screw rod is movably connected to the fixing frame, the screw rod is threadedly connected to the connecting plate, the front side of the connecting plate is fixedly connected with a splint, the splint is located on the right side of the placement plate, and a through groove is opened on the right side of the back plate.

[0010] As a preferred embodiment of the utility model, connecting grooves are opened on the left and right sides of the inner wall of the fixing frame, fixing plates are fixedly connected on both sides of the pressure plate, a sliding rod is fixedly connected to the top of the inner wall of the connecting groove, the other end of the sliding rod passes through the fixing plate and is fixedly connected to the bottom of the inner wall of the connecting groove, and the sliding rod is movably connected to the fixing plate.

[0011] As a preferred embodiment of the utility model, a guide rod is fixedly connected to the top of the back plate, and a plurality of guide rods are provided. A guide hole is opened on the rear side of the top of the pressure plate, and the number of the guide holes is the same as that of the guide rods.

[0012] As a preferred embodiment of the utility model, slide rails are provided on both sides of the bottom of the placement plate, and two slide bars are fixedly connected to the left side of the top of the bottom plate, and the surfaces of the slide bars are slidably connected to the inner walls of the slide rails.

[0013] As a preferred embodiment of the utility model, a receiving plate is fixedly connected to the front side of the base plate, a support plate is fixedly connected to the right side of the top of the base plate, the top of the support plate fits with the bottom of the splint, and a handle is fixedly connected to the front side of the placement plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model provides an electric push rod and a pressure plate. By starting the electric push rod, the output end of the electric push rod can drive the pressure plate to move downward, so that the E-type magnetic core placed on the top of the bottom plate can be pressed and limited. This solves the problem that when taking and placing the magnetic core, the screw rod, the nut and the upper pressure plate need to be repeatedly disassembled and installed according to the different number of magnetic cores to be processed each time, which is extremely inconvenient and consumes a lot of manpower, reduces the processing efficiency, and the repeated disassembly and installation will cause accelerated wear of the components, affecting the use, and achieves the effect of facilitating the pressing and limiting of the magnetic core.

[0016] 2. The utility model sets a bearing component, and the placement plate is used to place the E-type magnetic core. By moving the placement plate, it is convenient for the user to take and place the E-type magnetic core. The back plate can be used to place the E-type magnetic core directly under the pressure plate, and the groove makes it convenient for the user to grind the middle column of the E-type magnetic core.

[0017] 3. The utility model sets a clamping component. After the E-type magnetic core to be processed is placed on the top of the placement plate, the servo motor can be started to make the output end of the servo motor drive the screw rod to rotate. The rotation of the screw rod can drive the connecting plate to move to the left inside the installation groove. The movement of the connecting plate to the left can drive the clamping plate to move to the left to clamp and limit the right side of the E-type magnetic core. The through groove facilitates the left and right movement of the connecting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the novel abutting assembly of the present invention;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the load-bearing component of the utility model;

[0021] Figure 4 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0022] In the figure: 1. bottom plate; 2. fixing frame; 3. top plate; 4. electric push rod; 5. pressure plate; 6. bearing assembly; 61. placement plate; 62. back plate; 63. groove; 7. tightening assembly; 71. servo motor; 72. mounting groove; 73. connecting plate; 74. screw rod; 75. clamping plate; 76. through groove; 8. connecting groove; 9. fixing plate; 10. sliding rod; 11. guide rod; 12. guide hole; 13. slide rail; 14. slide bar; 15. receiving plate; 16. support plate; 17. handle. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figures 1 to 4 As shown, the utility model provides a magnetic core grinding fixture, including a base plate 1, a fixing frame 2 and a top plate 3, the bottom of the fixing frame 2 is fixedly connected to the top of the base plate 1, the bottom of the top plate 3 is fixedly connected to the top of the fixing frame 2, two electric push rods 4 are fixedly installed on the bottom of the top plate 3, the output ends of the two electric push rods 4 are fixedly connected to a pressure plate 5, the top of the base plate 1 is movably connected to a bearing component 6, and the rear side of the right side of the fixing frame 2 is fixedly installed with a tightening component 7.

[0025] refer to Figure 1 The bearing assembly 6 includes a placement plate 61, a back plate 62 is fixedly connected to the rear side of the top of the placement plate 61, a groove 63 is provided on the front side of the placement plate 61 and the top of the pressure plate 5, and the rear side of the back plate 62 is in contact with the rear side of the inner wall of the fixing frame 2.

[0026] As a technical optimization solution of the utility model, by setting a bearing component 6, a placement plate 61 is used to place the E-type magnetic core. By moving the placement plate 61, it is convenient for the user to take and place the E-type magnetic core. The back plate 62 can be used to place the E-type magnetic core directly below the pressure plate 5. The groove 63 facilitates the user to grind the middle column of the E-type magnetic core.

[0027] refer to Figure 1 The tightening component 7 includes a servo motor 71, a mounting groove 72 is opened on the right side of the rear side of the inner wall of the fixing frame 2, and a connecting plate 73 is movably connected to the inner wall of the mounting groove 72, and a screw rod 74 is fixedly connected to the output end of the servo motor 71. The other end of the screw rod 74 passes through the fixing frame 2 and the connecting plate 73 in sequence and is movably connected to the left side of the inner wall of the mounting groove 72 through a bearing. The screw rod 74 is movably connected to the fixing frame 2, and the screw rod 74 is threadedly connected to the connecting plate 73. A clamping plate 75 is fixedly connected to the front side of the connecting plate 73, and the clamping plate 75 is located on the right side of the placement plate 61. A through groove 76 is opened on the right side of the back plate 62.

[0028] As a technical optimization scheme of the utility model, by setting a clamping component 7, after the E-type magnetic core to be processed is placed on the top of the placement plate 61, the output end of the servo motor 71 can drive the screw rod 74 to rotate by starting the servo motor 71. The rotation of the screw rod 74 can drive the connecting plate 73 to move to the left inside the installation groove 72. The movement of the connecting plate 73 to the left can drive the clamping plate 75 to move to the left to clamp and limit the right side of the E-type magnetic core. The through groove 76 facilitates the connecting plate 73 to move left and right.

[0029] refer to Figure 4 A connecting groove 8 is provided on the left and right sides of the inner wall of the fixing frame 2, and a fixing plate 9 is fixedly connected to both sides of the pressure plate 5. A sliding rod 10 is fixedly connected to the top of the inner wall of the connecting groove 8, and the other end of the sliding rod 10 passes through the fixing plate 9 and is fixedly connected to the bottom of the inner wall of the connecting groove 8, and the sliding rod 10 is movably connected to the fixing plate 9.

[0030] As a technical optimization scheme of the utility model, by setting the connecting groove 8, the fixed plate 9 and the sliding rod 10, the connecting groove 8 facilitates the up and down movement of the fixed plate 9, the movement of the pressing plate 5 can drive the fixed plate 9 to move up and down, the sliding rod 10 can limit the fixed plate 9 front and back, left and right, and the front and back, left and right limiting of the fixed plate 9 can limit the pressing plate 5 front and back, left and right, thereby avoiding the displacement of the pressing plate 5 during movement.

[0031] refer to Figure 1 A guide rod 11 is fixedly connected to the top of the back plate 62 , and a plurality of guide rods 11 are provided. A guide hole 12 is opened on the rear side of the top of the pressure plate 5 , and the number of the guide holes 12 is the same as that of the guide rods 11 .

[0032] As a technical optimization scheme of the utility model, by setting the guide rod 11 and the guide hole 12, when the bottom of the pressure plate 5 is in contact with the top of the back plate 62, the guide rod 11 is inserted into the guide hole 12. At this time, the guide hole 12 can limit the guide rod 11 in the front, back, left and right directions. The front, back, left and right directions of the guide rod 11 can limit the back plate 62 and the placement plate 61 in the front, back, left and right directions, thereby preventing the placement plate 61 and the back plate 62 from moving during the processing of the E-type magnetic core.

[0033] refer to Figure 1 and Figure 3 Slide rails 13 are provided on both sides of the bottom of the placement plate 61 , and two slide bars 14 are fixedly connected to the left side of the top of the bottom plate 1 , and the surface of the slide bar 14 is slidably connected to the inner wall of the slide rail 13 .

[0034] As a technical optimization solution of the utility model, by setting the slide rail 13 and the slide bar 14, the slide rail 13 can limit the slide bar 14 up, down, left, and right. Conversely, the slide bar 14 can limit the placement plate 61 up, down, left, and right. This can prevent the placement plate 61 from offsetting when it moves back and forth on the base plate 1.

[0035] refer to Figure 1 A receiving plate 15 is fixedly connected to the front side of the bottom plate 1 , a supporting plate 16 is fixedly connected to the right side of the top of the bottom plate 1 , the top of the supporting plate 16 is in contact with the bottom of the clamping plate 75 , and a handle 17 is fixedly connected to the front side of the placement plate 61 .

[0036] As a technical optimization solution of the utility model, a receiving plate 15, a supporting plate 16 and a handle 17 are provided. The handle 17 facilitates the user to move the placement plate 61 forward and backward. The receiving plate 15 is used to support the placement plate 61 moved out of the base plate 1, and the supporting plate 16 is used to support the clamping plate 75 that has not moved.

[0037] The working principle and use process of the utility model: when it is necessary to clamp and position the E-type magnetic core, first pull the placement plate 61 to the top of the receiving plate 15 by pulling the handle 17, and then neatly stack the E-type magnetic core to be processed on the top of the placement plate 61 so that the middle column of the E-type magnetic core is located at the top of the groove 63 on the placement plate 61, and then push the handle 17 to drive the placement plate 61 and the back plate 62 to move backward so that the rear side of the back plate 62 is in contact with the rear side of the inner wall of the fixing frame 2. At this time, the left side of the E-type magnetic core is in contact with the left side of the inner wall of the fixing frame 2. The electric push rod 4 is then started so that the output end of the electric push rod 4 drives the pressure plate 5 to move downward, thereby pressing and limiting the top of the E-type magnetic core placed on the top of the base plate 1. The servo motor 71 is then started so that the output end of the servo motor 71 drives the screw rod 74 to rotate. The rotation of the screw rod 74 can drive the connecting plate 73 to move to the left inside the mounting groove 72. The movement of the connecting plate 73 to the left can drive the clamping plate 75 to move to the left to press and limit the right side of the E-type magnetic core. At this time, the positioning of the E-type magnetic core is completed.

[0038] To sum up: this magnetic core grinding fixture, by setting up four pressure plates 5 with an electric push rod, can make the output end of the electric push rod 4 drive the pressure plate 5 to move downward by starting the electric push rod 4, so that the E-type magnetic core placed on the top of the base plate 1 can be pressed and limited, which solves the problem that when taking and placing the magnetic core, the screw, nut and upper pressure plate need to be repeatedly disassembled and installed according to the different number of magnetic cores processed each time, which is extremely inconvenient and consumes a lot of manpower, reduces the processing efficiency, and the repeated disassembly and installation will cause accelerated wear of components, affecting the use.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A magnetic core grinding fixture, comprising a bottom plate (1), a fixing frame (2) and a top plate (3), characterized in that: The bottom of the fixing frame (2) is fixedly connected to the top of the bottom plate (1), the bottom of the top plate (3) is fixedly connected to the top of the fixing frame (2), two electric push rods (4) are fixedly installed on the bottom of the top plate (3), the output ends of the two electric push rods (4) are fixedly connected to a pressure plate (5), the top of the bottom plate (1) is movably connected to a bearing assembly (6), and a tightening assembly (7) is fixedly installed on the rear side of the right side of the fixing frame (2).

2. A magnetic core grinding fixture according to claim 1, characterized in that: The bearing assembly (6) comprises a placement plate (61), the rear side of the top of the placement plate (61) is fixedly connected to a back plate (62), the front sides of the tops of the placement plate (61) and the pressure plate (5) are both provided with grooves (63), and the rear side of the back plate (62) is in contact with the rear side of the inner wall of the fixing frame (2).

3. A magnetic core grinding fixture according to claim 2, characterized in that: The clamping assembly (7) comprises a servo motor (71), a mounting groove (72) is provided on the right side of the rear side of the inner wall of the fixing frame (2), a connecting plate (73) is movably connected to the inner wall of the mounting groove (72), a screw rod (74) is fixedly connected to the output end of the servo motor (71), the other end of the screw rod (74) passes through the fixing frame (2) and the connecting plate (73) in sequence and is movably connected to the left side of the inner wall of the mounting groove (72) through a bearing, the screw rod (74) is movably connected to the fixing frame (2), the screw rod (74) is threadedly connected to the connecting plate (73), a clamping plate (75) is fixedly connected to the front side of the connecting plate (73), the clamping plate (75) is located on the right side of the placement plate (61), and a through groove (76) is provided on the right side of the back plate (62).

4. A magnetic core grinding fixture according to claim 1, characterized in that: The left and right sides of the inner wall of the fixing frame (2) are provided with connecting grooves (8), and the two sides of the pressure plate (5) are fixedly connected to the fixing plates (9). The top of the inner wall of the connecting groove (8) is fixedly connected to a sliding rod (10), and the other end of the sliding rod (10) passes through the fixing plate (9) and is fixedly connected to the bottom of the inner wall of the connecting groove (8). The sliding rod (10) is movably connected to the fixing plate (9).

5. A magnetic core grinding fixture according to claim 2, characterized in that: The top of the back plate (62) is fixedly connected with a guide rod (11), and a plurality of guide rods (11) are provided. The rear side of the top of the pressure plate (5) is provided with a guide hole (12), and the number of the guide holes (12) is the same as the number of the guide rods (11).

6. A magnetic core grinding fixture according to claim 2, characterized in that: Slide rails (13) are provided on both sides of the bottom of the placement plate (61), and two slide bars (14) are fixedly connected to the left side of the top of the base plate (1), and the surface of the slide bar (14) is slidably connected to the inner wall of the slide rail (13).

7. A magnetic core grinding fixture according to claim 3, characterized in that: A receiving plate (15) is fixedly connected to the front side of the base plate (1), a support plate (16) is fixedly connected to the right side of the top of the base plate (1), the top of the support plate (16) is in contact with the bottom of the clamping plate (75), and a handle (17) is fixedly connected to the front side of the placement plate (61).

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