阅读说明：本技术 用于电机外壳涂装的专用内夹具 (Special inner clamp for coating motor shell ) 是由 黄荣敏 于 2019-09-23 设计创作，主要内容包括：本发明公开了用于电机外壳涂装的专用内夹具,包括支撑筒体、液压杆及弧形板,支撑筒体端部通过油管连接抽油泵,液压杆的液压缸通过连通孔与支撑筒体相通,伸缩杆固定连接在弧形板的中部并通过弹簧连接在弧形板两边；弧形板外侧铺设防滑橡胶头。本发明以支撑筒体和液压杆形成一种内张紧伸缩机构,通过支撑弧形板顶在电机外壳的内壁,而电机外壳两端外部的各液压杆及弧形板具有卡位作用,防止电机外壳向两端滑落,提高本发明的夹持稳定性,避免安全事故；本发明从内部夹持固定电机外壳,完全不影响电机外壳的外表面加工处理过程,且其受力稳定,避免安全事故,值得推广。(The invention discloses a special inner clamp for coating a motor shell, which comprises a support cylinder, a hydraulic rod and an arc-shaped plate, wherein the end part of the support cylinder is connected with an oil pump through an oil pipe, a hydraulic cylinder of the hydraulic rod is communicated with the support cylinder through a communication hole, and a telescopic rod is fixedly connected to the middle part of the arc-shaped plate and is connected to the two sides of the arc-shaped plate through a spring; the outside of the arc plate is laid with an antiskid rubber head. The supporting cylinder and the hydraulic rods form an internal tensioning telescopic mechanism, the supporting arc plates are abutted against the inner wall of the motor shell, and the hydraulic rods and the arc plates outside the two ends of the motor shell have a clamping effect, so that the motor shell is prevented from sliding towards the two ends, the clamping stability of the internal tensioning telescopic mechanism is improved, and safety accidents are avoided; the motor shell is clamped and fixed from the inside, the processing process of the outer surface of the motor shell is not influenced completely, the stress is stable, safety accidents are avoided, and the motor shell clamping device is worthy of popularization.)

1. The special inner clamp for coating the motor shell comprises a supporting cylinder body (1), hydraulic rods (2) which are annularly distributed around the supporting cylinder body (1) and an arc-shaped plate (3) connected to one end of each hydraulic rod (2), it is characterized in that one end of the supporting cylinder body (1) is connected with an oil well pump (5) through an oil pipe (4), the hydraulic rod (2) consists of a hydraulic cylinder and a telescopic rod, one end of the hydraulic cylinder is vertically connected with the cylinder wall of the supporting cylinder body (1), the cylinder wall of the supporting cylinder body (1) is provided with a communicating hole (6) communicated with the hydraulic cylinder, the telescopic rod is sleeved at the other end of the hydraulic cylinder, one end of the telescopic rod, which is far away from the supporting cylinder body (1), is fixedly connected to the middle position of the arc-shaped plate (3), two sides of the telescopic rod are connected to two sides of the arc-shaped plate (3) through springs (7);

one side of the arc-shaped plate (3) far away from the supporting cylinder body (1) is paved with an anti-slip rubber head (8), the arc-shaped plate (3) forms a discontinuous circular ring in a plurality of centrosymmetries, and the supporting cylinder body (1) is externally provided with a plurality of rings of arc-shaped plates (3).

2. The special inner clamp for coating the motor housing as claimed in claim 1, wherein the support cylinder (1) is in particular high-strength chrome steel.

3. The special inner clamp for coating the motor housing as claimed in claim 1, wherein the anti-slip rubber head (8) is in particular polyurethane foam rubber.

Technical Field

The invention relates to the technical field of motor shell preparation, in particular to a special inner clamp for coating a motor shell.

Background

After the motor casing is cast, anodic oxidation and painting treatment are required to protect the motor casing from being corroded by the environment. In the treatment process of each stage of the motor shell, the motor shell is always conveyed by a hoisting or conveying belt, so that on one hand, the motor shell is unstable and is easy to shake or even fall to cause damage; on the other hand, the treated chemicals tend to adhere to the hoisting head or the conveyor belt, causing environmental corrosion and personnel safety problems.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a special inner clamp for coating a motor shell.

In order to achieve the purpose, the invention adopts the following technical scheme:

the special inner clamp for coating the motor shell comprises a supporting barrel, hydraulic rods and an arc-shaped plate, wherein the hydraulic rods are annularly distributed around the supporting barrel, the arc-shaped plate is connected to one end of each hydraulic rod, one end of the supporting barrel is connected with an oil well pump through an oil pipe, each hydraulic rod is composed of a hydraulic cylinder and a telescopic rod, one end of each hydraulic cylinder is vertically connected to the wall of the supporting barrel, a communication hole communicated with the hydraulic cylinder is formed in the wall of the supporting barrel, the telescopic rod is sleeved at the other end of the hydraulic cylinder, one end, far away from the supporting barrel, of each telescopic rod is fixedly connected to the middle position of the arc;

the anti-skidding rubber heads are laid on one side, away from the supporting cylinder, of the arc plates, the arc plates with the centrosymmetry form discontinuous circular rings, and the supporting cylinder is externally provided with a plurality of circles of arc plates.

Preferably, the support cylinder is in particular high-strength chromium steel.

Preferably, the non-slip rubber head is in particular a polyurethane foam rubber.

Compared with the prior art, the invention has the beneficial effects that:

the internal tensioning telescopic mechanism is formed by the supporting cylinder and the hydraulic rod, and supports the arc-shaped plates, so that the arc-shaped plates are uniformly stressed and are sleeved in the motor shell, hydraulic pressure is increased, and the arc-shaped plates in the motor shell are extruded with the inner wall of the motor shell, so that the motor shell is supported, and an internal clamping structure is realized;

and the hydraulic rods outside the two ends of the motor shell and the hydraulic rods inside the arc-shaped plate have longer elongation, so that the clamping effect is realized, the motor shell is prevented from sliding towards the two ends, the clamping stability of the motor shell is improved, and safety accidents are avoided.

The motor shell is clamped and fixed from the inside, the processing process of the outer surface of the motor shell is not influenced completely, the stress is stable, safety accidents are avoided, and the motor shell clamping device is worthy of popularization.

Drawings

Fig. 1 is a schematic structural diagram of a special inner fixture for coating a motor housing according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1, the special inner fixture for coating the motor shell comprises a support barrel 1, hydraulic rods 2 annularly distributed around the support barrel 1 and an arc plate 3 connected to one end of the hydraulic rods 2, one end of the support barrel 1 is connected with an oil pump 5 through an oil pipe 4, the hydraulic rods 2 are composed of hydraulic cylinders and telescopic rods, one end of each hydraulic cylinder is vertically connected to the barrel wall of the support barrel 1, a communication hole 6 communicated with the hydraulic cylinder is formed in the barrel wall of the support barrel 1, the telescopic rods are sleeved at the other end of the hydraulic cylinders, one end, far away from the support barrel 1, of each telescopic rod is fixedly connected to the middle position of the arc plate 3, and two sides of each telescopic rod are connected to two sides of; the anti-skidding rubber head 8 is laid on one side of the arc-shaped plate 3 far away from the supporting cylinder body 1, the arc-shaped plates 3 with central symmetry form discontinuous circular rings, and the arc-shaped plates 3 with multiple rings are arranged outside the supporting cylinder body 1.

Referring to fig. 1, the support cylinder 1 is made of high strength chrome steel, which ensures that the support cylinder 1 has sufficient hardness and does not collapse when subjected to pressure.

Referring to fig. 1, the anti-slip rubber head 8 is specifically polyurethane foam rubber, which reduces the contact damage rate between the arc plate 3 and the inner wall of the motor housing, improves the friction force, and makes the clamping force more stable.

The working process of the invention is as follows: the invention forms an internal tension telescopic mechanism by a support cylinder 1 and a hydraulic rod 2, the structure supports arc-shaped plates 3, so that the arc-shaped plates 3 are uniformly stressed and are sleeved in a motor shell, hydraulic pressure is increased, and the arc-shaped plates 3 in the motor shell are extruded with the inner wall of the motor shell, so that the motor shell is supported, and an internal clamping structure is realized;

and the hydraulic rods 2 and the arc-shaped plates 3 outside the two ends of the motor shell have longer elongation than the hydraulic rods 2 and the arc-shaped plates 3 inside the motor shell, so that the clamping effect is realized, the motor shell is prevented from sliding towards the two ends, the clamping stability of the motor shell is improved, and safety accidents are avoided.

When the motor shell is loaded, the oil pump 5 is used for filling oil to the support cylinder 1, so that the pressure between the arc-shaped plate 3 and the inner wall of the motor shell reaches 0.2-0.4 MPa; when the device is disassembled and assembled, the oil pump 5 pumps oil to the supporting cylinder 1 until all the hydraulic rods 2 are contracted to the shortest, and the motor shell is taken out.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.