Iron core overlying, drawing and pressurizing device

Abstract

The utility model belongs to the field of iron core overlying, and discloses an iron core overlying drawing pressurizing device which comprises an upper pressing plate, a lower pressing plate, a pull rod, a locking gasket arranged on the upper pressing plate, a second nut arranged on the locking gasket, an oil cylinder arranged between the first nut and the second nut, and an oil cylinder arranged between the oil cylinder and the lower pressing plate. A supporting block is installed at the bottom end of the oil cylinder, and the pull rod sequentially penetrates through the oil cylinder, the supporting block and the upper pressing plate and is in threaded connection with the lower pressing plate. According to the iron core overlying drawing pressurizing device, the oil cylinder with the supporting block is sleeved with the pull rod, due to the fact that the upper portion of the oil cylinder is blocked by the first nut, reverse thrust can be formed and is applied to the upper pressing plate through the supporting block, pressure is applied to the iron core, after the pressure reaches a set value, the second nut is tightened, the upper pressing plate is pressed through the locking gasket, and after the oil cylinder relieves pressure, the oil cylinder is locked. The upper pressing plate still keeps the pressure on the iron core, so that the pressure maintaining effect is achieved; the oil cylinder can be moved independently and is convenient to replace, and portability and universality are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of iron core lamination belongs to, especially, a kind of iron core lamination drawing pressurizing device. BACKGROUND

[0002] After iron core lamination forming, to ensure the firmness of welding and the overall strength of iron core, certain pressure needs to be applied and maintained during welding to eliminate the stress generated by welding and prevent weld cracking. By accurately controlling the production process, including lamination, welding and pressure holding, etc. Link, the performance and reliability of motor iron core can be significantly improved, while production efficiency is improved and labor cost is reduced.

[0003] Iron core needs to be applied pressure holding after lamination to be welded, ensure that there is pressure between iron core punching sheet, original oil cylinder must be fixed in the specific position of pressing plate to use, and the structure is complex and heavy, inconvenient to operate, inconvenient to replace and share, therefore a new device is designed. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of iron core lamination drawing pressurizing device to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] An iron core lamination drawing pressurizing device, comprising upper pressing plate, lower pressing plate and pull rod, the top of the pull rod is provided with first nut, further comprising locking washer is arranged on the upper pressing plate, second nut is arranged on the locking washer, oil cylinder is arranged between the first nut and the second nut, support block is installed at the bottom end of the oil cylinder, the pull rod passes through the oil cylinder, the support block and the upper pressing plate in turn, and the lower pressing plate is screw-threaded.

[0007] Further, the support block is semi-opened, which facilitates the tightening of the second nut, and the support block and the oil cylinder are bolted, facilitating the disassembly and replacement of the support block.

[0008] Further, the locking washer is circular, made of 45 steel material, ensuring that the locking washer is solid and durable.

[0009] Further, the pull rod is cylindrical, and the thread lengths of both ends are equal, so that the two ends can be replaced with each other, facilitating assembly.

[0010] Compared with the prior art, the beneficial effects are:

[0011] The oil cylinder with the support block is sleeved on the pull rod, the oil cylinder is elongated upwards when being pressurized, the counter thrust is formed and applied on the upper pressing plate through the support block because the first nut blocks the upper part, the pressure is applied on the iron core, the second nut is tightened when the pressure reaches the set value, the upper pressing plate is pressed through the locking washer, the upper pressing plate still maintains the pressure on the iron core after the oil cylinder is depressurized, so that the pressure maintaining effect is achieved; the oil cylinder can be moved alone, replacement is facilitated, portability and commonality are improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 is a structural schematic view of the iron core laminated drawing pressurizing device.

[0013] Fig. 2 is a front view of the iron core laminated drawing pressurizing device.

[0014] In the drawing, 1 is a pull rod, 2 is a first nut, 3 is an oil cylinder, 4 is a support block, 5 is a second nut, 6 is a locking washer, 7 is an upper pressing plate, and 8 is a lower pressing plate. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0016] Please refer to Figs. 1-2 An iron core laminated drawing pressurizing device, which comprises an upper pressing plate 7, a lower pressing plate 8 and a pull rod 1, the top of the pull rod 1 is provided with a first nut 2, the upper pressing plate 7 is provided with a locking washer 6, the locking washer 6 is provided with a second nut 5, an oil cylinder 3 is arranged between the first nut 2 and the second nut 5, the bottom end of the oil cylinder 3 is provided with a support block 4, the pull rod 1 sequentially penetrates through the oil cylinder 3, the support block 4 and the upper pressing plate 7, and is threadedly connected with the lower pressing plate 8.

[0017] Further, the support block 4 is semi-opened, facilitating the tightening of the second nut 5, the support block 4 and the oil cylinder 3 are bolted, facilitating the dismounting and replacement of the support block 4; the locking washer 6 is circular, made of 45 steel material, ensuring that the locking washer 6 is solid and durable; the pull rod 1 is cylindrical, the thread lengths of two ends are equal, the two ends can be replaced with each other, facilitating the assembly.

[0018] Working principle: the iron core is pressed on the lower pressing plate 8 by the upper pressing plate 7, the pull rod 1 is first threaded through the upper pressing plate 7 and screwed on the lower pressing plate 8, the locking washer 6 is placed on the upper pressing plate 7, the second nut 5 is screwed to the locking washer 6, then the oil cylinder 3 with the supporting block 4 is sleeved on the pull rod 1, the supporting block 4 is placed on the upper pressing plate 7, then the first nut is sleeved from the top end of the pull rod 1 and screwed to the top end of the oil cylinder 3; the oil cylinder 3 will be elongated when pressurized, since the first nut 2 has been blocked on the top, the counter thrust will be formed and applied on the upper pressing plate 7 through the supporting block 4, the pressure is applied on the iron core, when the pressure reaches the set value, the second nut 5 is tightened, the upper pressing plate 7 is pressed through the locking washer 6, the oil cylinder 3 is depressurized, the upper pressing plate 7 will still maintain the pressure on the iron core, so as to achieve the pressure maintaining effect.

[0019] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments can be changed, modified, replaced and varied in many ways without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A core laminating and drawing press device, comprising an upper press plate (7), a lower press plate (8) and a draw bar (1), the top of the draw bar (1) is provided with a first nut (2), characterized in that: Also include the upper pressing plate (7) is provided with locking washer (6), the locking washer (6) is provided with the second nut (5), the first nut (2) and the second nut (5) are provided with oil cylinder (3), the oil cylinder (3) bottom end is installed with support block (4), the pull rod (1) passes through the oil cylinder (3), the support block (4) and the upper pressing plate (7) in turn, and the lower pressing plate (8) is screwed.

2. A core stacking and drawing press device according to claim 1, characterized in that: The support block (4) is semi-open, the support block (4) and the oil cylinder (3) are bolted.

3. The core stacking and drawing pressurizing device according to claim 1, characterized in that: The locking washer (6) is a circular ring, made of 45 steel material.

4. The core stacking and drawing pressurizing apparatus according to claim 1, characterized by: The pull rod (1) is cylindrical, and the thread length of both ends is equal.

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