阅读说明：本技术 细长轴中心架 (Slender shaft center frame ) 是由 张涛 黄秀波 于志佳 郭晓明 唐浩宇 郑维 于 2019-11-15 设计创作，主要内容包括：本发明涉及一种细长轴中心架,此中心架由支撑架、调心装置、压紧装置组成。其中支撑架为整体的圆盘,一侧开有豁口,上端面均匀分布三处支爪；调心装置包括花头螺栓、顶块,将花头螺栓旋进支撑架上的支爪后,将顶块与花头螺栓装配在一起；压紧装置为带销顶紧螺钉,当细长轴调心完成后,用带销顶紧螺钉顶死调心装置,避免加工过程中出现松动的情况,此工具操作简单便捷,加工容易,能够很好地实现大设备加工小直径的变径加工工作。(The invention relates to a slender shaft center frame which comprises a support frame, a centering device and a pressing device. Wherein the support frame is an integral disc, one side of the support frame is provided with a notch, and three supporting claws are uniformly distributed on the upper end surface; the aligning device comprises a flower head bolt and a jacking block, and the jacking block and the flower head bolt are assembled together after the flower head bolt is screwed into a supporting claw on the supporting frame; the pressing device is provided with a pin jacking screw, after the aligning of the slender shaft is completed, the pin jacking screw is used for jacking the aligning device, the loosening condition in the machining process is avoided, the tool is simple and convenient to operate, the machining is easy, and the reducing machining work of machining small diameters of large equipment can be well realized.)

1. A slender shaft center frame is characterized in that: by support frame (1), aligning device, closing device constitutes, be in the same place through screw thread and key-type connection between the three device, support frame (1) is an annular steel structure, three outstanding claw (5) of department of annular up end evenly distributed of support frame (1), have screw hole (6) in the middle of claw (5), the interior round end position of claw (5) has counter sink (7), screw hole (6) join in marriage with flower head bolt (2) and join in marriage the dress, counter sink (7) join in marriage with kicking block (3) and join in marriage together, screw hole (8) installation area round pin jacking screw (4) of claw (5) up end, support frame (1) excircle has square through hole (9), support frame (1) and the three claw centering center frame joint of lathe, the both sides of square through hole (9) have jackscrew hole (10), the offside of square through hole has opening (11).

2. The elongated shaft center frame of claim 1, wherein: the aligning device includes flower head bolt (2) and kicking block (3), the screw hole assembly on flower head bolt (2) and the supporting jaw of support frame (1), kicking block (3) are joined in marriage with flower head bolt (2), kicking block (3) excircle is opened there is keyway (12), keyway (12) are joined in marriage with the round pin head of taking round pin top tightening screw (4) and are joined in marriage the dress, kicking block (3) are joined in marriage with flower head bolt (2) and are joined in marriage the dress, rotatory flower head bolt (2), adjust length, kicking block (3) radial motion thereupon.

3. The elongated shaft center frame of claim 1, wherein: the pressing device is a jacking screw (4) with a pin, the jacking screw (4) with the pin is arranged in a screw hole on the end surface of a supporting claw (5) on the supporting frame (1), and a pin head of the jacking screw (4) with the pin is assembled with an excircle key groove (12) of the jacking block (3).

The technical field is as follows:

the present invention relates to an elongate shaft steady.

Background art:

along with the high-speed development of the motor industry, the manufacturing precision of a motor is required to be improved, the motor is particularly developed to be high, fine and small, and higher requirements are provided for large-equipment clamping.

The invention content is as follows:

the invention aims to provide a slender shaft center frame which can smoothly finish diameter-variable mounting preprocessing of a slender shaft of a motor on large precision equipment, so that the integral precision of motor manufacturing is ensured, and the cost is saved. The invention adopts the following technical scheme: a slender shaft center frame consists of a support frame (1), an aligning device and a pressing device, wherein the three devices are connected together through threads and keys, the support frame (1) is of an annular steel structure, the supporting claw (5) with three protruding positions is uniformly distributed on the upper end face of the supporting frame (1), a threaded hole (6) is formed in the middle of the supporting claw (5), a counter sink (7) is formed in the end face position of the inner circle of the supporting claw (5), the threaded hole (6) is assembled with a flower head bolt (2), the counter sink (7) is assembled with a jacking block (3), a screw hole (8) on the upper end face of the supporting claw (5) is provided with a jacking screw (4) with a pin, the outer circle of the supporting frame (1) is provided with a square through hole (9), the supporting frame (1) is connected with a three-claw centering center frame of a machine tool, two sides of the square through hole (9) are provided with jacking screw holes (10), and the opposite side of the square through hole.

The aligning device includes flower head bolt (2) and kicking block (3), the screw hole assembly on flower head bolt (2) and the supporting jaw of support frame (1), kicking block (3) are joined in marriage with flower head bolt (2), kicking block (3) excircle is opened there is keyway (12), keyway (12) are joined in marriage with the round pin head of taking round pin top tightening screw (4) and are joined in marriage the dress, kicking block (3) are joined in marriage with flower head bolt (2) and are joined in marriage the dress, rotatory flower head bolt (2), adjust length, kicking block (3) radial motion thereupon.

The pressing device is a jacking screw (4) with a pin, the jacking screw (4) with the pin is arranged in a screw hole on the end surface of a supporting claw (5) on the supporting frame (1), and a pin head of the jacking screw (4) with the pin is assembled with an excircle key groove (12) of the jacking block (3).

The working principle of the invention is as follows:

the flower head bolt and the jacking block are sequentially installed on the supporting frame, then the jacking screw with the pin is screwed, the installed center frame is installed on processing equipment to be used, the height between the center frame and the equipment tip is roughly adjusted, then the slender shaft is installed on the processing equipment, the flower head bolt is rotated to center, the jacking screw with the pin is locked, and the processing is started.

The specific use of the tool can be referred to the following examples: the flower head bolt and the jacking block are sequentially installed on the supporting frame, then the jacking screw with the pin is screwed, the installed center frame is installed on processing equipment to be used, the height between the center frame and the equipment tip is roughly adjusted, then the slender shaft is installed on the processing equipment, the flower head bolt is rotated to center, the jacking screw with the pin is locked, and the processing is started.

The invention has the advantages that:

each part is designed with a fine structure, so that the clamping precision and stability of the parts are ensured. The supporting frame (1) is of an annular steel structure, three protruding supporting claws (5) are uniformly distributed on the upper end face of the annular supporting claw (5), a threaded hole (6) is formed in the middle of the supporting claw (5), a countersunk hole (7) is formed in the end face position of the inner circle of the supporting claw (5), the threaded hole is assembled with a flower head bolt (2), the countersunk hole (7) is assembled with a jacking block (3), the jacking block (3) is driven by adjusting the flower head bolt (2) to be used for supporting a workpiece and adjusting the diameter, meanwhile, the supporting block is a floating soft supporting block and is ground according to the size of a shaft part, the precision is ensured, after the workpiece is fixed, a jacking screw (4) with a pin is installed on a processing screw hole (8) on the upper end face of the supporting claw (5) to fix the workpiece, the stability of the workpiece is ensured, the supporting frame (1) is fixed on a three-jaw center frame of a machine tool through a jacking hole, and meanwhile, the disassembly is convenient, the support frame is provided with the notch 11, and the upper machine tool and the lower machine tool of the shaft component can be conveniently and quickly assembled.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a front view of the overall structure of the present invention.

Detailed Description

The slender shaft center frame shown in figure 1 is composed of a support frame 1, a centering device and a pressing device, the three devices are connected together through threads and keys, the support frame 1 is of an annular steel structure, three protruding supporting claws 5 are uniformly distributed on the annular upper end face of the support frame 1, threaded holes 6 are formed in the middles of the supporting claws 5, countersunk holes 7 are formed in the end face positions of the inner circle of the supporting claws 5, the threaded holes 6 are matched with flower head bolts 2, the countersunk holes 7 are matched with ejector blocks 3, screw holes 8 in the upper end face of each supporting claw 5 are provided with pin jacking screws 4, the outer circle of the support frame 1 is provided with a square through hole 9, the support frame 1 is connected with a three-claw centering center frame of a machine tool, two sides of each square through hole 9 are provided with jacking screw holes 10, and the opposite sides of each square through hole are provided with.

As shown in fig. 2, the aligning device comprises a spline bolt 2 and a top block 3, the spline bolt 2 is assembled with a threaded hole on a supporting claw of the support frame 1, the top block 3 is assembled with the spline bolt 2, a key groove 12 is formed in the outer circle of the top block 3, the key groove 12 is assembled with a pin head with a pin jacking screw 4, the top block 3 is assembled with the spline bolt 2, the spline bolt 2 is rotated, the length is adjusted, and the top block 3 moves radially along with the spline bolt.

The pressing device is a jacking screw 4 with a pin, the jacking screw 4 with the pin is arranged in a screw hole at the end face of a supporting claw 5 on the support frame 1, and the pin head of the jacking screw 4 with the pin is matched with the excircle key groove 12 of the jacking block 3.