阅读说明：本技术 一种电力机车位置转换开关转鼓车削夹持装置 (Electric locomotive position change-over switch rotary drum turning clamping device ) 是由 张建福 袁善民 于 2021-08-18 设计创作，主要内容包括：本发明涉及一种电力机车位置转换开关转鼓车削夹持装置。采用的技术方案是：包括辅助夹持主轴,所述辅助夹持主轴与车削机床装夹连接,所述辅助夹持主轴一侧可拆卸连接有限位圈,所述辅助夹持主轴外侧依次穿插套接有多个转鼓,所述辅助夹持主轴另一侧通过螺纹连接有六角薄螺母,所述辅助夹持主轴辅助装夹多个转鼓连接车床旋转用于车削加工所述转鼓的外圈。本发明的有益效果：优化位置转换开关转鼓组装车削工序,提高位置转换开关转鼓组装车削质量,提升位置转换开关转鼓组装加工精度,避免转鼓组装车削时细长轴、有色金属断续车削造成的加工困难,加工后的表面粗糙度满足了电力机车位置转换开关检修工艺要求。(The invention relates to a rotary drum turning clamping device of a position change-over switch of an electric locomotive. The technical scheme is as follows: including supplementary centre gripping main shaft, supplementary centre gripping main shaft is connected with the lathe clamping, supplementary centre gripping main shaft one side can be dismantled and is connected with the spacing collar, supplementary centre gripping main shaft outside alternates in proper order and has cup jointed a plurality of rotary drums, supplementary centre gripping main shaft opposite side has the thin nut of hexagonal through threaded connection, the rotation of lathe is used for lathe work is connected to a plurality of rotary drums of supplementary centre gripping main shaft the outer lane of rotary drum. The invention has the beneficial effects that: the assembly and turning process of the position change-over switch rotary drum is optimized, the assembly and turning quality of the position change-over switch rotary drum is improved, the assembly and machining precision of the position change-over switch rotary drum is improved, the machining difficulty caused by intermittent turning of slender shafts and nonferrous metals during the assembly and turning of the rotary drum is avoided, and the machined surface roughness meets the maintenance process requirement of the position change-over switch of the electric locomotive.)

1. The utility model provides an electric locomotive position change over switch rotary drum turning clamping device which characterized in that: the auxiliary clamping device comprises an auxiliary clamping main shaft (1), wherein the auxiliary clamping main shaft (1) is connected with a turning machine tool in a clamping manner, one side of the auxiliary clamping main shaft (1) is detachably connected with a limiting ring (2), a plurality of rotary drums (6) are sequentially inserted and sleeved on the outer side of the auxiliary clamping main shaft (1), the other side of the auxiliary clamping main shaft (1) is connected with a hexagonal thin nut (10) through threads, and the auxiliary clamping main shaft (1) is used for clamping a plurality of rotary drums (6) to be connected with a lathe to rotate so as to be used for turning the outer ring of the rotary drum (6);

a first retainer ring (4) and a second retainer ring (5) are arranged on two sides of the multiple rotary drums (6), the first retainer ring (4) and the second retainer ring (5) are used for clamping the multiple rotary drums (6) to prevent the multiple rotary drums (6) from rotating, and the limiting ring (2) and the hexagonal thin nuts (10) are used for fastening the multiple rotary drums (6).

2. The electric locomotive position conversion switch drum turning clamping device as claimed in claim 1, wherein: a main shaft external thread (101) is machined on one side of the auxiliary clamping main shaft (1), and the main shaft external thread (101) is connected with the hexagonal thin nut (10) in a threaded fit mode.

3. The electric locomotive position conversion switch drum turning clamping device as claimed in claim 1, wherein: and a spring washer (9) is arranged between the spring washer (9) and the second retainer ring (5).

4. The electric locomotive position conversion switch drum turning clamping device as claimed in claim 1, wherein: the upper side and the lower side of the limiting ring (2) are provided with taper pins (3), and the taper pins (3) are used for fixing the limiting ring (2) and the auxiliary clamping main shaft (1).

5. The electric locomotive position conversion switch drum turning clamping device as claimed in claim 1, wherein: the auxiliary clamping main shaft (1), the limiting ring (2), the taper pin (3) and the second check ring (5) are made of steel Q235.

6. The electric locomotive position conversion switch drum turning clamping device as claimed in claim 1, wherein: the first check ring (4) is made of epoxy glass cloth plate materials.

7. The electric locomotive position conversion switch drum turning clamping device as claimed in claim 1, wherein: the spring washer (9) is a spring washer with the diameter of 24, and the hexagonal thin nut (10) is an M24 hexagonal thin nut.

Technical Field

The invention belongs to the technical field of maintenance equipment of position change-over switches of electric locomotives, and relates to a rotary drum turning clamping device of the position change-over switches of the electric locomotives.

Background

The SS series electric locomotive position change-over switch has clear requirements on the thickness of a drum assembly drum piece in the process of overhaul of the locomotive, the drum piece must be replaced and reassembled when the thickness is over-limited, turning processing must be carried out because the updated drum piece is a blank material according to design requirements, the drum assembly design structure is a slender shaft, the drum piece structure is irregular, red copper is used, the slender shaft and non-ferrous metal discontinuous turning in the turning field can cause severe vibration and processing difficulty, and the roughness requirement after turning cannot be guaranteed.

Disclosure of Invention

The invention aims to overcome the existing defects and provides a rotary drum turning clamping device for an electric locomotive position change-over switch, which overcomes the processing difficulty caused by the intermittent turning of slender shafts and nonferrous metals in the rotary drum turning process, ensures that the roughness after the rotary drum turning meets the process requirements, improves the processing efficiency and effectively solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the rotary drum turning clamping device for the position change switch of the electric locomotive adopts the technical scheme that the rotary drum turning clamping device comprises an auxiliary clamping main shaft, wherein the auxiliary clamping main shaft is connected with a turning machine tool in a clamping manner, one side of the auxiliary clamping main shaft is detachably connected with a limiting ring, a plurality of rotary drums are sequentially inserted and sleeved on the outer side of the auxiliary clamping main shaft, the other side of the auxiliary clamping main shaft is connected with a hexagonal thin nut through threads, and the auxiliary clamping main shaft is used for assisting in clamping the plurality of rotary drums and is connected with a lathe to rotate so as to be used for turning the outer ring of the rotary drum;

the two sides of the plurality of rotary drums are provided with a first retaining ring and a second retaining ring, the first retaining ring and the second retaining ring are used for clamping the plurality of rotary drums to prevent the rotary drums from rotating, and the limiting ring and the hexagonal thin nuts are used for fastening the plurality of rotary drums.

As a preferred technical scheme of the invention, a main shaft external thread is processed on one side of the auxiliary clamping main shaft, and the main shaft external thread is in threaded fit connection with the hexagonal thin nut.

As a preferable technical solution of the present invention, a spring washer is disposed between the spring washer and the second retainer.

As a preferred technical scheme of the invention, the upper side and the lower side of the limiting ring are provided with taper pins, and the taper pins are used for fixing the limiting ring and the auxiliary clamping main shaft.

As a preferred technical scheme of the invention, the auxiliary clamping main shaft, the limiting ring, the taper pin and the second retaining ring are made of steel Q235.

As a preferable technical scheme of the invention, the first check ring is made of epoxy glass cloth plate material.

In a preferred embodiment of the present invention, the spring washer is a 24-diameter spring washer, and the thin hexagonal nut is an M24 thin hexagonal nut.

Compared with the prior art, the invention has the beneficial effects that: the utility model provides an electric locomotive position change over switch rotary drum turning clamping device, optimize position change over switch rotary drum equipment turning process, improve position change over switch rotary drum equipment turning quality, promote position change over switch rotary drum equipment machining precision, ensure position change over switch contact performance and application reliability, slender axles when avoiding rotary drum equipment turning, the processing difficulty that non ferrous metal interrupted turning caused, roughness after the turning is unsatisfied the requirement, after adopting rotary drum turning auxiliary clamping device, lathe machining main shaft is reduced to 289mm by 812mm length, the work piece vibrations reduce 80% during the turning, the roughness after the processing has satisfied electric locomotive position change over switch and has overhauld the technological requirement.

Drawings

FIG. 1 is an assembly view of the auxiliary clamp spindle of the present invention;

FIG. 2 is a schematic view of an auxiliary clamp spindle of the present invention;

FIG. 3 is a view of the construction of the spacing collar of the present invention;

FIG. 4 is a view showing an assembly structure of a drum according to a comparative example of the present invention;

FIG. 5 is a view showing a construction of a main shaft for drum assembly according to a comparative example of the present invention;

FIG. 6 is a view showing a structure of a drum sheet laying structure of a comparative example of the present invention;

fig. 7 is a cross-sectional view of a drum sheet according to a comparative example of the present invention.

In the figure: 1. auxiliary clamping of the main shaft; 101. a main shaft external thread; 2. a limiting ring; 3. a taper pin; 4. a first retainer ring; 5. a second retainer ring; 6. a drum; 601. a rotary drum threaded hole; 7. a drum sheet; 701. a drum sheet counter bore; 8. a shaft sleeve; 9. a spring washer; 10. a hexagonal thin nut; 11. and assembling the main shaft by the rotary drum.

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, but not all of the embodiments (for convenience of description and understanding, the upper side of fig. 1 is described as the upper side below). All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1 to 3, the electric locomotive position change-over switch drum turning clamping device adopts the technical scheme that the electric locomotive position change-over switch drum turning clamping device comprises an auxiliary clamping main shaft 1, the auxiliary clamping main shaft 1 is connected with a turning machine tool in a clamping manner, one side of the auxiliary clamping main shaft 1 is detachably connected with a limiting ring 2, a plurality of drums 6 are sequentially inserted and sleeved outside the auxiliary clamping main shaft 1, the other side of the auxiliary clamping main shaft 1 is connected with a hexagon nut 10 through threads, the auxiliary clamping main shaft 1 is used for assisting in clamping the plurality of drums 6 and connecting the lathe to rotate for turning the outer ring of the drum 6, a first retaining ring 4 and a second retaining ring 5 are arranged on two sides of the plurality of drums 6, the first retaining ring 4 and the second retaining ring 5 are used for clamping the plurality of drums 6 to prevent the drums 6 from rotating, the limiting ring 2 and the hexagon nut 10 are used for fastening the plurality of drums 6, after the rotary drum 6 and the auxiliary clamping main shaft 1 are tightly connected with the hexagonal thin nut 10 through the spring washer 9, the whole body is turned by the C20 horizontal lathe.

Further, a main shaft external thread 101 is processed on one side of the auxiliary clamping main shaft 1, the main shaft external thread 101 is in thread fit connection with a hexagonal thin nut 10, a spring washer 9 is arranged between the spring washer 9 and the second retainer ring 5, taper pins 3 are arranged on the upper side and the lower side of the limiting ring 2, and the taper pins 3 are used for fixing the limiting ring 2 and the auxiliary clamping main shaft 1.

Further, the auxiliary clamping main shaft 1, the limiting ring 2, the taper pin 3 and the second retaining ring 5 are made of steel Q235, the first retaining ring 4 is made of an epoxy glass cloth plate, the spring washer 9 is a spring washer with a diameter of 24, and the thin hexagonal nut 10 is an M24 thin hexagonal nut.

As shown in fig. 4 to 7, in the existing drum assembly structure of the comparative example of the present invention, a drum 6 and a shaft sleeve 8 are sequentially sleeved outside a drum assembly spindle 11, a plurality of drum threaded holes 601 are formed in the outer surface of the drum 6, a drum sheet 7 is installed outside the drum 6, a drum sheet counter bore 701 is formed in the outer surface of the drum sheet 7, the drum 6 and the drum sheet 7 are connected by counter bore bolts, the drum assembly spindle 11 has a long length, and the drum 6 of a workpiece to be machined vibrates strongly during turning.

When in use: after the drum 6 and the auxiliary clamping main shaft 1 are assembled and fixedly connected with the hexagonal thin nut 10 through the spring washer 9 by a worker, the whole body is turned through a C20 horizontal lathe, the rotating speed of the lathe is 300r/min, the feed amount is 0.1mm, after turning of the drum 6 of the workpiece to be machined is finished, the workpiece to be machined is installed on the drum assembling main shaft 11 according to the process requirements, and the next procedure is carried out.

The invention optimizes the assembly and turning process of the position change-over switch rotary drum, improves the assembly and turning quality of the position change-over switch rotary drum, improves the assembly and processing precision of the position change-over switch rotary drum, ensures the contact performance and the application reliability of the position change-over switch, avoids the processing difficulty caused by the intermittent turning of slender shafts and nonferrous metals during the assembly and turning of the rotary drum, ensures that the roughness after turning does not meet the requirement, adopts the rotary drum turning auxiliary clamping device, reduces the length of a lathe processing main shaft from 812mm to 289mm, reduces the vibration of a processed workpiece by 80 percent during the turning, and ensures that the surface roughness after processing meets the maintenance process requirement of the position change-over switch of an electric locomotive.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.