Compression tool for magnetic field winding slot wedge punching

Abstract

The utility model relates to the technical field of machinery, and discloses a pressing tool for magnetic field winding slot wedge punching, which comprises a base, a pressing mechanism is arranged at the top of the base, a pressing mechanism is arranged in the pressing mechanism, the pressing mechanism comprises a fixing sleeve, the fixing sleeve is fixedly connected to the top of the base, and the pressing mechanism is arranged in the fixing sleeve. A first sliding rod is fixedly connected into the fixing sleeve, a first moving seat is slidably connected to the periphery of the first sliding rod, an extrusion block is fixedly connected to the bottom of the first moving seat, and a connecting cylinder is fixedly connected to the top of the first moving seat. According to the under-wedge filler strip pressing device, under the action of a pressing rod, a first moving seat, a first sliding rod and a first spring, when the under-wedge filler strip needs to be pressed, the pressing rod can be downwards extruded, namely, under the action of an extrusion block, a pressing mechanism is extruded, pressing work is achieved, and therefore the situation that pressing work is achieved in a threaded driving mode is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of machinery, in particular to a pressing tool for wedge-punching a magnetic field winding. Background Art

[0002] The wedge punching of the motor field winding is an important step in the motor manufacturing process. Its main function is to fix the coil embedded in the core and prevent the coil from shifting in the slot, including preventing the coil from popping out of the slot. The use of slot wedges helps to maintain the correct position of the coil, ensure the normal operation of the motor and improve its performance. In the wedge punching process of the generator rotor field winding, a wire-embedding clamping tool is required to press the pad under the rotor wedge to fit it, so that the slot wedge can be inserted into the slot from the rotor wire-embedding slot.

[0003] According to the description in the clamping tool for punching slot wedges for the generator field winding published on the patent website (authorization announcement number: CN208316531U), the clamping tool for punching slot wedges for the generator field winding includes "handles, screws, guide sleeves" and the like to perform the clamping work.

[0004] In view of the above description, the applicant believes that there are the following problems:

[0005] The clamping tool for the generator magnetic field winding slot wedge uses a handle, a screw, a guide sleeve, etc. to perform the clamping work. The driving method of this clamping tool is to drive the screw to rise and fall in the thread groove through the handle to squeeze the sliding block. Since the screw works in the thread groove for a long time, thread slippage may occur, thereby affecting the clamping work. In addition, the lifting and lowering of the screw is time-consuming and labor-intensive, affecting the clamping efficiency. Therefore, this clamping tool needs to be improved. Utility Model Content

[0006] The utility model aims to provide a clamping tool for wedge-punching a magnetic field winding to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clamping tool for wedge-making of magnetic field winding, comprising a base, a pressing mechanism is arranged on the top of the base, and a clamping mechanism is arranged inside the pressing mechanism;

[0008] The pressing mechanism includes a fixed sleeve, and the fixed sleeve is fixedly connected to the top of the base. A first sliding rod is fixedly connected inside the fixed sleeve, and a first moving seat is slidably connected to the periphery of the first sliding rod. An extrusion block is fixedly connected to the bottom of the first moving seat, and a connecting tube is fixedly connected to the top of the first moving seat. A pressing rod is slidably connected inside the connecting tube, and a first spring is sleeved on the periphery of the first sliding rod.

[0009] Preferably, a slide groove is provided in the fixed sleeve, the left and right sides of the first movable seat are slidably connected in the slide groove, and a friction pad is provided on the periphery of the fixed sleeve.

[0010] Preferably, the top of the first spring is fixedly connected to the bottom of the first movable seat, and the bottom of the first spring is fixedly connected to the fixed sleeve, so that under the elastic action of the first spring, the first movable seat can be driven to reset after the first movable seat completes downward movement.

[0011] Preferably, a limiting groove having the same movement trajectory as the pressing rod is opened inside the connecting tube, and the pressing rod is slidably connected in the limiting groove, so that the limiting groove can limit the pressing rod and the pressing rod can be easily disassembled.

[0012] Preferably, the clamping mechanism includes a second slide rod, the second slide rod is fixedly connected in the fixed sleeve, the second slide rod is slidably connected to a second movable seat on the periphery, the second slide rod is sleeved with a second spring on the periphery, the second movable seat is fixedly connected to a connecting frame at the bottom, and the connecting frame is fixedly connected to an extrusion disk at the bottom.

[0013] Preferably, a movable groove is provided in the fixed sleeve, the left and right sides of the second movable seat are slidably connected to the movable groove, the top of the second spring is fixedly connected to the bottom of the second movable seat, the bottom of the second spring is fixedly connected to the fixed sleeve, and the second movable seat is arranged at the bottom of the extrusion block. The top of the second movable seat and the bottom of the extrusion block fit each other, so that when the second movable seat completes downward movement, the second movable seat can be driven to reset under the elastic action of the second spring.

[0014] Preferably, the connecting frame is slidably connected to the base and the fixed sleeve, and movable grooves are respectively opened inside the base and the fixed sleeve, and the two movable grooves correspond to each other. The connecting frame is slidably connected to the movable groove, so that when the second movable seat is squeezed by the extrusion block, the connecting frame can drive the extrusion plate to rise and fall in the movable groove, thereby pressing the pad under the wedge through the extrusion plate.

[0015] Compared with the prior art, the utility model provides a clamping tool for wedge-punching a magnetic field winding, which has the following beneficial effects:

[0016] 1. The clamping tool for the magnetic field winding slot wedge can realize the clamping work under the action of the pressing rod, the first movable seat, the first sliding rod and the first spring through the provided pressing mechanism. When it is necessary to clamp the pad under the wedge, the pressing rod can be pressed downward, that is, the clamping mechanism can be squeezed under the action of the squeezing block to realize the clamping work, thereby avoiding the clamping work by a threaded drive mode. The thread slippage phenomenon may occur when the threaded drive is used for a long time, thereby improving the efficiency of clamping the pad under the wedge and the convenience of operation. At the same time, a friction pad is provided on the periphery of the fixed sleeve to prevent hand slippage during rotation in the wire embedding groove, and the pressing rod is slidably connected to the limit groove inside the connecting tube, which can facilitate the disassembly of the pressing rod. When the pressing is completed, the first movable seat can be driven to reset under the elastic force of the first spring to carry out the next squeezing work.

[0017] 2. The clamping tool for the magnetic field winding slot wedge can realize the clamping mechanism when the extrusion block squeezes the second movable seat. The second slide bar, the second spring, the connecting frame and the extrusion plate can be used to clamp the pad under the wedge. The extrusion plate is circular in shape, which can increase the contact area with the pad under the wedge and protect the pad under the wedge. When the clamping work is completed, the second movable seat can be reset under the elastic force of the second spring to carry out the next clamping work, which is highly efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the pressing mechanism structure;

[0022] Figure 4 It is a schematic diagram of the internal structure of the fixed sleeve;

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the connecting tube;

[0024] Figure 6 It is a schematic diagram of the clamping mechanism structure.

[0025] In the figure: 1. base; 2. pressing mechanism; 3. clamping mechanism; 21. fixing sleeve; 22. extrusion block; 23. first movable seat; 24. connecting tube; 25. pressing rod; 26. first slide rod; 27. first spring; 31. second movable seat; 32. second slide rod; 33. second spring; 34. connecting frame; 35. extrusion disk. DETAILED DESCRIPTION

[0026] 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.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The utility model provides the following technical solutions:

[0029] Embodiment 1

[0030] See also Figure 1-6 The utility model provides a technical solution: a clamping tool for wedge-making of magnetic field winding, comprising a base 1, a pressing mechanism 2 is arranged on the top of the base 1, a clamping mechanism 3 is arranged inside the pressing mechanism 2, the pressing mechanism 2 includes a fixed sleeve 21, the fixed sleeve 21 is fixedly connected to the top of the base 1, a first slide bar 26 is fixedly connected inside the fixed sleeve 21, a first movable seat 23 is slidably connected to the periphery of the first slide bar 26, an extrusion block 22 is fixedly connected to the bottom of the first movable seat 23, a connecting tube 24 is fixedly connected to the top of the first movable seat 23, a pressing rod 25 is slidably connected inside the connecting tube 24, and a first spring 27 is sleeved on the periphery of the first slide bar 26.

[0031] A sliding groove is provided in the fixed sleeve 21, and the left and right sides of the first movable seat 23 are slidably connected in the sliding groove. A friction pad is arranged on the periphery of the fixed sleeve 21. The top of the first spring 27 is fixedly connected to the bottom of the first movable seat 23, and the bottom of the first spring 27 is fixedly connected to the fixed sleeve 21, so that under the elastic action of the first spring 27, when the first movable seat 23 moves downward, it can drive the first movable seat 23 to reset. A limiting groove with the same movement trajectory as the pressing rod 25 is provided inside the connecting tube 24, and the pressing rod 25 is slidably connected in the limiting groove, so that the pressing rod 25 can be limited by the limiting groove, and the pressing rod 25 can be disassembled at the same time.

[0032] Embodiment 2

[0033] See also Figure 1-6 On the basis of the first embodiment, the clamping mechanism 3 further comprises a second slide bar 32, the second slide bar 32 is fixedly connected in the fixed sleeve 21, the second slide bar 32 is slidably connected to the second movable seat 31 on the periphery, the second slide bar 32 is sleeved with a second spring 33 on the periphery, the second movable seat 31 is fixedly connected to a connecting frame 34 at the bottom, the connecting frame 34 is fixedly connected to an extrusion plate 35 at the bottom, a movable groove is provided in the fixed sleeve 21, the left and right sides of the second movable seat 31 are slidably connected in the movable groove, the top of the second spring 33 is fixedly connected to the bottom of the second movable seat 31, the bottom of the second spring 33 is fixedly connected in the fixed sleeve 21, and the second movable seat 31 is arranged at the extrusion plate 35. The bottom of the pressing block 22 and the top of the second movable seat 31 fit together with the bottom of the extrusion block 22, so that when the second movable seat 31 moves downward, the second movable seat 31 can be reset under the elastic action of the second spring 33, and the connecting frame 34 is slidably connected to the base 1 and the fixed sleeve 21. The base 1 and the fixed sleeve 21 are respectively provided with movable grooves, and the two movable grooves correspond to each other. The connecting frame 34 is slidably connected to the movable groove, so that when the second movable seat 31 is squeezed by the extrusion block 22, the connecting frame 34 can drive the squeezing plate 35 to rise and fall in the movable groove, so that the squeezing plate 35 can press the wedge-under-pad strip.

[0034] In actual operation, when the device is used, when the clamping work is performed, the fixing sleeve 21 is rotated to drive the base 1 to rotate into the wire embedding groove, and then the pressing rod 25 is inserted into the connecting tube 24, and then rotated ninety degrees, the pressing rod 25 can be limited by the limiting groove inside the connecting tube 24, and then the pressing rod 25 is pressed downward, and the extrusion block 22 can be squeezed by the first movable seat 23. When the first movable seat 23 moves, it will slide around the first sliding rod 26 and squeeze the first spring 27, causing deformation. When the extrusion block 22 moves downward, it will contact with the first sliding rod 26. The second movable seat 31 contacts and squeezes the second movable seat 31, so that the second movable seat 31 can drive the squeezing plate 35 to move through the connecting frame 34, and the squeezing plate 35 contacts the wedge pad under the wedge to compact the wedge pad under the wedge. When the second movable seat 31 moves, it will slide around the second slide bar 32 and squeeze the second spring 33 to deform the second spring 33. When the compaction work is completed, the first movable seat 23 and the second movable seat 31 can be reset by resetting the first spring 27 and the second spring 33, and then the next compaction work can be carried out.

[0035] 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. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A clamping tool for wedge-punching a field winding, comprising a base (1), characterized in that: A pressing mechanism (2) is arranged on the top of the base (1), and a clamping mechanism (3) is arranged inside the pressing mechanism (2); The pressing mechanism (2) includes a fixed sleeve (21), the fixed sleeve (21) is fixedly connected to the top of the base (1), a first sliding rod (26) is fixedly connected inside the fixed sleeve (21), a first movable seat (23) is slidably connected to the periphery of the first sliding rod (26), a squeezing block (22) is fixedly connected to the bottom of the first movable seat (23), a connecting tube (24) is fixedly connected to the top of the first movable seat (23), a pressing rod (25) is slidably connected inside the connecting tube (24), and a first spring (27) is sleeved on the periphery of the first sliding rod (26).

2. A clamping tool for wedge-punching a field winding according to claim 1, characterized in that: A sliding groove is provided in the fixed sleeve (21), and the first movable seat (23) is slidably connected to the sliding groove on both sides, and a friction pad is provided on the periphery of the fixed sleeve (21).

3. A clamping tool for wedge-punching a field winding according to claim 1, characterized in that: The top of the first spring (27) is fixedly connected to the bottom of the first movable seat (23), and the bottom of the first spring (27) is fixedly connected to the inside of the fixed sleeve (21).

4. A clamping tool for wedge-punching a field winding according to claim 1, characterized in that: A limiting groove having the same movement trajectory as the pressing rod (25) is provided inside the connecting tube (24), and the pressing rod (25) is slidably connected in the limiting groove.

5. The clamping tool for wedge-punching a field winding according to claim 1, characterized in that: The clamping mechanism (3) comprises a second slide bar (32), the second slide bar (32) is fixedly connected in the fixed sleeve (21), the second slide bar (32) is slidably connected to a second movable seat (31) on its periphery, the second slide bar (32) is sleeved with a second spring (33) on its periphery, the second movable seat (31) is fixedly connected to a connecting frame (34) at its bottom, and the connecting frame (34) is fixedly connected to a pressing plate (35) at its bottom.

6. A clamping tool for wedge-punching a field winding according to claim 5, characterized in that: A movable groove is provided in the fixed sleeve (21), and the second movable seat (31) is slidably connected to the movable groove on both sides. The top of the second spring (33) is fixedly connected to the bottom of the second movable seat (31), and the bottom of the second spring (33) is fixedly connected to the fixed sleeve (21). The second movable seat (31) is arranged at the bottom of the extrusion block (22), and the top of the second movable seat (31) and the bottom of the extrusion block (22) are in contact with each other.

7. The clamping tool for wedge-punching a field winding according to claim 5, characterized in that: The connecting frame (34) is slidably connected to the base (1) and the interior of the fixing sleeve (21); the base (1) and the fixing sleeve (21) are respectively provided with movable grooves, and the two movable grooves correspond to each other; the connecting frame (34) is slidably connected to the movable grooves.

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