Reducing mould for iron core

Abstract

The utility model provides an iron core reducing clamping fixture which comprises a clamping fixture supporting part, a plurality of sliding blocks are arranged on the outer side of the clamping fixture supporting part, sliding grooves are formed in the sliding blocks, drawing and inserting plates matched with the sliding grooves are arranged in the sliding grooves, left wedge blocks are installed on the drawing and inserting plates, right wedge blocks matched with the left wedge blocks are arranged on one sides of the left wedge blocks, and the right wedge blocks are connected with an adjustable outer tire. A tire unloading cushion block is mounted at the top of the sliding block, a locking bolt is mounted in the tire unloading cushion block, one end of the locking bolt is mounted in the drawing and inserting plate, and the other end of the locking bolt extends to the upper part of the tire unloading cushion block; by means of the arrangement, inner circles of the iron cores can be prevented from being uneven after the iron cores are laminated, and it can be guaranteed that the iron cores cannot be strained after tires are unloaded; the structure is simple and the use is convenient.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of core moulds, in particular to a core variable-diameter mould. BACKGROUND

[0002] The core mould is key process equipment for core forming in the manufacturing of electromagnetic equipment such as transformers and motors, and plays a decisive role in the precision and quality of core manufacturing. The core mould mainly has the following purposes:

[0003] 1. Ensuring core precision: accurately controlling the shape, size and lamination quality of the core to ensure that various parameters of the core meet the design standards and improve the performance consistency and stability of the electromagnetic equipment;

[0004] 2. Improving production efficiency: standardized operation process and positioning and pressing mode reduce the difficulty and time of manual operation, making the core manufacturing process more efficient and conducive to large-scale production;

[0005] 3. Enhancing product performance: high-quality core manufacturing benefits from the precise control of the mould, which can effectively reduce the magnetic hysteresis loss and eddy current loss of the core, improve the electromagnetic conversion efficiency and prolong the service life of the electromagnetic equipment;

[0006] In the prior art, the core of the commonly used mould structure is not adjustable, and the core lamination, locking and heating processes can cause changes in the inner diameter of the product. When the mould is removed, the interference amount between the product and the outer diameter of the mould is too large, which can cause the inner diameter of the product to be damaged. After detailed search, the applicant has not found a related technical solution of a variable-diameter mould.

[0007] Therefore, it is necessary to provide a new technical solution to solve the above technical problems. CONTENT OF THE UTILITY MODEL

[0008] The application provides a core variable-diameter mould, which comprises a mould support part, a plurality of sliding blocks are arranged on the outer side of the mould support part, a sliding groove is arranged in each sliding block, an extraction plate matched with the sliding groove is arranged in the sliding groove, a left wedge block is mounted on the extraction plate, a right wedge block matched with the left wedge block is arranged on one side of the left wedge block, the right wedge block is connected with an adjustable outer mould, a demoulding pad block is mounted on the top of the sliding block, a locking bolt is mounted in the demoulding pad block, one end of the locking bolt is mounted in the extraction plate, and the other end of the locking bolt extends to the upper part of the demoulding pad block.

[0009] As a preferred scheme, the mould support part comprises a circular support column, a plurality of mounting planes are uniformly arranged on the outer side of the support column, a plurality of mounting columns are mounted on each mounting plane, and the sliding blocks are mounted on the mounting columns.

[0010] As a preferred scheme, a fixing plate is mounted between the mounting column and the sliding block.

[0011] As a preferred solution, the mounting sleeve is arranged between the mounting column and the fixing plate.

[0012] As a preferred solution, the mounting sleeve comprises a sleeve body mounting portion connected with the mounting column, and a mounting plate is arranged on the top of the sleeve body mounting portion, and the fixing plate is arranged on the mounting plate.

[0013] As a preferred solution, the top of the pull-out and insertion plate is provided with a bolt placing groove, and the locking bolt is arranged in the bolt placing groove.

[0014] As a preferred solution, the bolt placing groove comprises a groove body one and a groove body two, and the diameter of the groove body one is larger than that of the groove body two.

[0015] As a preferred solution, the locking bolt comprises a limiting portion arranged in the groove body one, an upper portion of the limiting portion is provided with a connecting portion arranged in the groove body two, and an upper portion of the connecting portion is provided with a threaded portion, the diameter of the threaded portion is larger than that of the connecting portion, the threaded portion is arranged in the threaded hole of the tire unloading cushion block and extends to the top of the tire unloading cushion block.

[0016] As a preferred solution, the top of the threaded portion is provided with a screwing portion, and the diameter of the screwing portion is larger than that of the threaded portion.

[0017] As a preferred solution, a plurality of limiting grooves are arranged on the pull-out and insertion plate, the adjustable tire is connected with the sliding block through the sliding rod, and the sliding rod passes through the limiting grooves.

[0018] As a preferred solution, the upper portion of the left wedge block and the lower portion of the right wedge block are respectively provided with inclined sliding surfaces.

[0019] The structure of the application can prevent the inner circle of the iron core from being misaligned after stacking, and can also prevent the tire from being damaged after unloading; and the structure is simple and convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic view of angle one of the application;

[0021] Figure 2 is a structural schematic view of angle two of the application;

[0022] Figure 3 is a structural schematic view of the tire fixture support portion of the application;

[0023] Figure 4 is a structural schematic view of angle one of the partial tire fixture support portion of the application;

[0024] Figure 5 is a structural schematic view of angle two of the partial tire fixture support portion of the application;

[0025] Figure 6 is a structural schematic view of angle one of a part structure of the application;

[0026] Figure 7 is a structural schematic view of angle two of a part structure of the application;

[0027] Figure 8 is a structural schematic view of angle three of a part structure of the application;

[0028] Figure 9 is a structural schematic view of angle four of a part structure of the application;

[0029] Figure 10 is a structural schematic view of angle five of a part structure of the application;

[0030] Figure 11 is a structural schematic view of angle six of a part structure of the application;

[0031] Figure 12 is a structural schematic view of angle one of a mounting sleeve of the application;

[0032] Figure 13 is a structural schematic view of angle two of a mounting sleeve of the application;

[0033] Figure 14 is a structural schematic view of cooperation of a left wedge block and a right wedge block of the application;

[0034] Figure 15 is a structural schematic view of a sliding block of the application;

[0035] 1, fixture support part; 2, sliding block; 3, sliding groove; 4, pull-out plate; 5, left wedge block; 6, right wedge block; 7, adjustable tire; 8, tire unloading cushion block; 9, locking bolt; 10, sliding surface; 11, support column; 12, mounting plane; 13, mounting column; 14, fixed plate; 15, mounting sleeve; 16, sleeve body mounting part; 17, mounting plate; 18, mounting screw; 19, groove body one; 20, groove body two; 21, limiting part; 22, connecting part; 23, threaded part; 24, screwing part; 25, limiting groove; 26, sliding rod. DETAILED DESCRIPTION

[0036] The following will be described in detail in combination with the accompanying drawings. Figure 1 to the accompanying drawings Figure 15 The specific embodiments of the present application will be described in detail. It should be noted that the specific embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application.

[0037] Example one:

[0038] The embodiment provides a core variable-diameter mould, which comprises a mould support part 1, and a plurality of variable outer mould devices are arranged on the outer side of the mould support part 1; the number of the variable outer mould devices can meet the requirements of support and coaxiality, and the specific number is not limited. Figure 1 、 Figure 2 Only part of the structure is shown, and the variable outer mould device comprises a sliding block 2 which is connected with the mould support part 1 through screwing, bonding, welding and the like, a sliding groove 3 is arranged in the sliding block 2, an inserting and pulling plate 4 which is matched with the sliding groove 3 is arranged in the sliding groove 3, the inserting and pulling plate 4 can move up and down along the sliding groove 3, a left wedge block 5 is arranged on the inserting and pulling plate 4 and connected with the inserting and pulling plate 4 through screwing and the like, a right wedge block 6 which is matched with the left wedge block 5 is arranged on one side of the left wedge block 5, and the right wedge block 6 is connected with an adjustable outer mould 7 through screwing and the like, a tyre removing pad 8 is arranged on the top of the sliding block 2 through screwing, bolting, welding and the like, a threaded hole is arranged in the tyre removing pad 8, a locking bolt 9 is arranged in the threaded hole, one end of the locking bolt 9 is arranged in the inserting and pulling plate 4, and the other end of the locking bolt 9 extends to the upper part of the tyre removing pad 8; in the working state, the left wedge block 5 contacts with the right wedge block 6 and plays a supporting role, and in the tyre removing state, the left wedge block 5 is separated from the right wedge block 6, and the adjustable outer mould 7 moves towards the mould support part 1.

[0039] Preferably, in order to facilitate the cooperation of the left wedge block 5 and the right wedge block 6, inclined sliding surfaces 10 are arranged on the upper part of the left wedge block 5 and the lower part of the right wedge block 6 respectively, so that the left wedge block 5 and the right wedge block 6 can be contacted and separated.

[0040] The working principle of the embodiment is as follows: the locking bolt 9 is screwed downwards, the locking bolt 9 pushes the inserting and pulling plate 4 to move downwards, the left wedge block 5 moves downwards along with the inserting and pulling plate 4, the right wedge block 6 does not move up and down, therefore, when the left wedge block 5 is separated from the right wedge block 6, the adjustable outer mould 7 can move towards the mould support part 1, the core variable-diameter mould is conveniently disassembled from the inside of the core, and the inside diameter of the core is not damaged; conversely, the locking bolt 9 is screwed upwards, the locking bolt 9 drives the inserting and pulling plate 4 to move upwards, the left wedge block 5 moves upwards along with the inserting and pulling plate 4, when the left wedge block 5 contacts with the right wedge block 6, the right wedge block 6 drives the adjustable outer mould 7 to move away from the mould support part 1, and the inside diameter of the core is supported.

[0041] Embodiment two

[0042] The embodiment specifically describes the mould support part 1, and specifically:

[0043] The mold support part 1 includes a circular support column 11, in order to save materials, reduce weight, the inside of the support column 11 is hollow, the outside of the support column 11 is uniformly provided with a plurality of mounting planes 12, a plurality of mounting columns 13 are mounted on each mounting plane 12, the mounting column 13 and the mounting plane 12 are connected by the commonly used connection mode in the prior art such as screws, bolts, bonding, welding, in order to facilitate disassembly, preferably detachable connection, the mounting column 13 is mounted with the sliding block 2, preferably, the sliding block 2 and the mounting column 13 are connected by the commonly known connection mode such as screws, bolts.

[0044] Preferably, in order to ensure the stability of the connection, the mounting column 13 and the sliding block 2 are mounted with a fixing plate 14, and the fixing plate 14 is detachably connected with the mounting column 13 and the sliding block 2 by screws, bolts and the like, or can be fixedly connected by bonding, welding and the like; more preferably, in order to facilitate installation, the mounting column 13 and the fixing plate 14 are mounted with a mounting sleeve 15, the mounting sleeve 15 and the mounting column 13, the mounting sleeve 15 and the fixing plate 14 are connected by screws and the like, specifically, the mounting sleeve 15 includes a sleeve mounting part 16 connected with the mounting column 13, the top of the sleeve mounting part 16 is provided with a mounting plate 17, preferably, the sleeve mounting part 16 and the mounting plate 17 are integrally formed, and the mounting plate 17 is connected with the fixing plate 14 by mounting screws 18.

[0045] Embodiment three:

[0046] This embodiment specifically describes the pull-in plate 4, specifically:

[0047] The top of the pull-in plate 4 is provided with a bolt placing groove, the bolt placing groove is mounted with the locking bolt 9, the bolt placing groove includes a groove body one 19 and a groove body two 20, the diameter of the groove body one 19 is greater than the diameter of the groove body two 20, the locking bolt 9 includes a limiting part 21, the limiting part 21 is mounted in the groove body one 19, the upper part of the limiting part 21 is provided with a connecting part 22, the connecting part 22 is arranged in the groove body two 20, the upper part of the connecting part 22 is provided with a threaded part 23, the diameter of the threaded part 23 is greater than the diameter of the connecting part 22, the threaded part 23 is mounted in the threaded hole of the tire removing pad block 8 and extends to the top of the tire removing pad block 8; preferably, in order to facilitate operation, the top of the threaded part 23 is provided with a screwing part 24, the diameter of the screwing part 24 is greater than the diameter of the threaded part 23, the screwing part 24 is arranged to facilitate the screwing of the locking bolt 9, thereby facilitating the upward and downward movement of the pull-in plate 4 along the sliding groove 3.

[0048] Preferably, in order to facilitate the limiting of the pull-out plate 4, a plurality of limiting grooves 25 are arranged on the pull-out plate 4, the adjustable tire 7 is connected with the sliding block 2 through a sliding rod 26, and the sliding rod 26 penetrates through the limiting grooves 25; the adjustable tire 7 can move along the sliding rod 26 towards the tire support part 1 or away from the tire support part 1; the locking bolt 9 is screwed downward, the locking bolt 9 pushes the pull-out plate 4 to move downward, the left wedge block 5 moves downward along with the pull-out plate 4, when the left wedge block 5 and the right wedge block 6 are separated, the adjustable tire 7 can move towards the tire support part 1, on the contrary, the locking bolt 9 is screwed upward, the locking bolt 9 drives the pull-out plate 4 to move upward, the left wedge block 5 moves upward along with the pull-out plate 4, when the left wedge block 5 and the right wedge block 6 are in contact, the adjustable tire 7 moves away from the tire support part 1 to realize the supporting; in the process, the limiting grooves 25 move along the sliding rod 26, which can limit the pull-out plate 4 and prevent it from separating from the sliding groove 3.

[0049] The working principle of the utility model is as follows: the sector-shaped silicon steel sheet with a self-adhesive coating is made into a sector-shaped self-adhesive segment, the prepared self-adhesive segment is controlled through an iron core diameter changing tire mold, is laminated to the corresponding height, the left wedge block 5 and the right wedge block 6 are in contact, are in the working state, and can guarantee the inner diameter coaxiality; when the tire is unloaded, the locking bolt 9 is screwed downward, the left wedge block 5 and the right wedge block 6 are separated, the adjustable tire block 7 can move towards the tire support part 1, so that the adjustable tire block 7 does not contact the inner diameter of the iron core, and the application can be directly disassembled, the tire mold is loosened through the adjustable pull-out plate 4, and the inner diameter of the iron core is not pulled and hurt, therefore, the application can prevent the inner circle of the iron core from being uneven after lamination and can guarantee that the iron core is not pulled and hurt after unloading; and the structure is simple, and the application is convenient to use.

[0050] The devices and connection relationships not specifically described above all belong to the prior art, and the utility model will not be specifically described here.

[0051] The standard parts used in the application file can be purchased from the market, and can be customized according to the description and the drawings, and the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, and the machinery, parts and equipment adopt the conventional type in the prior art.

[0052] The preferred mode of the application is described in detail above in combination with the drawings, but the application is not limited to the specific details in the above embodiments, and various simple modifications can be made to the technical scheme of the application within the technical concept of the application, and these simple modifications all belong to the protection scope of the application.

[0053] In addition, it should be noted that various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction, and various possible combinations of the application will not be described again.

[0054] Furthermore, the various embodiments of the application can also be combined with each other, as long as it does not violate the spirit of the application, the application should be considered as disclosed herein.

Claims

1. A core-diameter-changing jig, comprising a jig support portion (1), characterized in that, Multiple sliders (2) are provided on the outer side of the tire support part (1). A groove (3) is provided in the slider (2). A pull-out plate (4) that cooperates with it is provided in the groove (3). A left wedge (5) is installed on the pull-out plate (4). A right wedge (6) that cooperates with it is provided on one side of the left wedge (5). The right wedge (6) is connected to the adjustable outer tire (7). A tire removal pad (8) is installed on the top of the slider (2). A locking bolt (9) is installed in the tire removal pad (8). One end of the locking bolt (9) is installed in the pull-out plate (4), and the other end of the locking bolt (9) extends to the upper part of the tire removal pad (8).

2. The core reducing fixture according to claim 1, characterized in that, The fixture support part (1) includes a circular support column (11). Multiple mounting planes (12) are evenly arranged on the outer side of the support column (11). Multiple mounting columns (13) are installed on each mounting plane (12). The slider (2) is installed on the mounting column (13).

3. The core reducing fixture according to claim 2, characterized in that, A fixing plate (14) is installed between the mounting column (13) and the slider (2).

4. A core-changing fixture according to claim 3, characterized in that, An installation sleeve (15) is installed between the mounting column (13) and the fixing plate (14).

5. A core-changing fixture according to claim 4, characterized in that, The mounting sleeve (15) includes a sleeve mounting part (16) connected to the mounting post (13), and a mounting plate (17) is provided on the top of the sleeve mounting part (16), and a fixing plate (14) is installed on the mounting plate (17).

6. A core reducing fixture according to claim 1, characterized in that, The top of the pull plate (4) is provided with a bolt placement groove, and the locking bolt (9) is installed in the bolt placement groove.

7. A core reducing fixture according to claim 6, characterized in that, The bolt placement groove includes a first groove (19) and a second groove (20), wherein the diameter of the first groove (19) is larger than the diameter of the second groove (20).

8. A core reducing fixture according to claim 7, characterized in that, The locking bolt (9) includes a limiting part (21), which is installed in the first groove (19). The upper part of the limiting part (21) is provided with a connecting part (22), which is installed in the second groove (20). The upper part of the connecting part (22) is provided with a threaded part (23), which has a diameter larger than that of the connecting part (22). The threaded part (23) is installed in the threaded hole of the tire removal pad (8) and extends to the top of the tire removal pad (8).

9. A core-changing fixture according to claim 1, characterized in that, The insert plate (4) is provided with multiple limiting grooves (25), and the adjustable outer tire (7) is connected to the slider (2) through the slide rod (26), and the slide rod (26) passes through the limiting groove (25).

10. A core-changing fixture according to claim 1, characterized in that, The upper part of the left wedge (5) and the lower part of the right wedge (6) are respectively provided with inclined sliding surfaces (10).

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