CN-224209895-U - Pulley bracket machining tool

Abstract

The utility model discloses a pulley bracket processing tool, which belongs to the technical field of pulley brackets and comprises a positioning support frame, wherein a pulley bracket fixing device, a lifting device and an indexing positioning disc are arranged on the positioning support frame, the lifting device is arranged at the lower part of the pulley bracket fixing device to drive the pulley bracket fixing device to move up and down, the pulley bracket fixing device comprises a semicircular head positioning device, a V-shaped bottom surface positioning device and a tail jacking screw rod, the tail jacking screw rod pushes the pulley bracket fixing device to move along the X-axis direction so as to enable the semicircular head positioning device to coincide with the positioning surface of the indexing positioning disc, and the pulley bracket can realize high-precision positioning in the X-axis direction and the Z-axis direction through the semicircular head positioning device and the V-shaped bottom surface positioning device. The tail part tightly pushes up the adjustment of the lead screw, so that the high precision in the processing process is ensured, and the processing quality is ensured.

Inventors

• ZHOU ZHILI
• WANG ZONGXING
• ZHOU JUNKE
• Lv Gaoyin
• WANG DEPENG
• XU TENG
• LI XIANSEN
• CUI HENG

Assignees

• 山东陆海装备集团青岛有限公司

Dates

Publication Date

20260508

Application Date

20250516

Claims (8)

1. 1. The pulley support machining tool is characterized by comprising a positioning support frame, wherein a pulley support fixing device (2), a lifting device (4) and an indexing positioning disc (7) are arranged on the positioning support frame, the lifting device (4) is arranged at the lower part of the pulley support fixing device (2) to drive the pulley support fixing device (2) to move up and down, the pulley support fixing device comprises a semicircular head positioning device, a V-shaped bottom surface positioning device and a tail jacking screw rod (3), and the tail jacking screw rod (3) pushes the pulley support fixing device (2) to move along the X-axis direction so that the semicircular head positioning device coincides with the positioning surface of the indexing positioning disc (7).
2. 2. The tooling of claim 1, wherein the V-shaped bottom surface positioning device is greater in height than the semicircular head positioning device.
3. 3. The pulley bracket machining tool according to claim 1, wherein the semicircular head positioning device is provided with an open slot (21) for accommodating a pulley bracket.
4. 4. The pulley bracket machining tool according to claim 1, wherein the side edge of the semicircular head positioning device is provided with a clamping shaft plate fixing bolt (22).
5. 5. The pulley bracket machining tool according to claim 1, wherein the upper portion of the semicircular head positioning device is provided with a pulley cover fixing screw hole (23).
6. 6. The pulley bracket machining tool according to claim 1, further comprising a Z-axis positioning device, wherein the Z-axis positioning device comprises a Z-axis positioning plate (8) and a jacking bolt (9), the jacking bolt (9) is connected with the Z-axis positioning plate (8), and the jacking bolt (9) is rotated to enable the top end of the jacking bolt to be in surface contact with the pulley bracket fixing device (2).
7. 7. The pulley bracket machining tool according to claim 1, wherein one end of the indexing positioning plate (7) is fixed on the positioning support frame through a positioning pin (1).
8. 8. The pulley bracket machining tool according to claim 1, wherein the lifting device (4) comprises a jacking platform (41), an X-shaped bracket (42), a worm wheel (43), a worm (44), a driven gear (45) and a right-handed screw (46), the X-shaped bracket (42) is located below the jacking platform (41), the worm wheel (43) and the worm (44) are located on two sides of the X-shaped bracket (42), the driven gear (45) and the right-handed screw (46) are located below the output end of the worm (44), the worm wheel (43) is meshed with the worm (44), and the worm wheel (43) drives the worm (44) to rotate to drive the driven gear (45) and the right-handed screw (46) to move to adjust the height of the X-shaped bracket (42).

Description

Pulley bracket machining tool Technical Field The utility model belongs to the technical field of pulley supports, and particularly relates to a pulley support machining tool. Background The pulley support is used for turning the traction direction of the steel wire rope, the structure of the pulley support mainly comprises a support plate for supporting a pulley shaft, the support plate is positioned at two ends of the pulley shaft, and a pulley shaft pin hole is processed on the support plate so as to ensure the stability of the pulley in the running process. In order to prevent the pulley shaft from axial movement in the use process, the clamping shaft plates are additionally arranged at the two ends of the pulley shaft, internal threads are processed on the periphery of the end face of the pulley hole of the pulley bracket, and the clamping shaft plates are fixed on the supporting plate through bolts, so that the stability of the pulley shaft is ensured. In order to facilitate the installation of the pulley, an opening groove slightly larger than the pulley shaft is formed in the tangential direction of the pulley Kong Mouyi of the pulley support, so that parts such as the pulley, the pulley shaft, the bearing, the retainer ring, the end cover and the like can be assembled in advance when the pulley is installed, and then the assembled pulley is integrally placed into the pulley support from the groove, so that the installation work of the pulley can be completed rapidly. In addition, a pulley cover is arranged on the pulley support, and the pulley cover is connected with the pulley support through bolts to prevent the steel wire rope from jumping out of the upper end of the pulley. Currently, the pulley support is processed by adopting traditional manual operation and multi-working modes, and boring machines, milling machines and radial drilling machines are generally used for processing. In the traditional method, the pulley support needs to be marked firstly, and a bench worker uses a tool to mark coordinate lines in X, Y, Z three directions on a platform, so that the machining position of the pulley support is ensured to be accurate. And after scribing, hoisting the pulley bracket to a boring machine, and boring a pulley hole after manual precise alignment. The next process step involves milling the open slot on a milling machine and ensuring that the open slot is of satisfactory size and tangential to the bore diameter of the pulley bore. And then, hoisting the pulley bracket to a rocker arm drilling machine, drilling and tapping the internal threads of the end face, and rotating 180 degrees to continuously process the threads of the other side, thereby completing the thread processing of the two sides. Finally, the pulley support needs to be rotated by 90 degrees, so that pulley cover fixing bolt holes are further processed, and accurate positions of the bolt holes are ensured. However, the conventional processing method has a number of problems. Firstly, the procedures are complicated, special personnel are needed for each procedure, the technical requirement of each operation step is high, and the manual error is easy to occur. In addition, because the precision is ensured by manual scribing, the scribing error directly affects the processing quality, so that the precision and the efficiency of the whole processing process are difficult to ensure. The whole processing process needs a plurality of work types to be matched, so that the labor cost is increased and the workload is high. The processing efficiency is difficult to improve due to repeated sequence conversion and equipment replacement, and particularly under the condition of short production period, the existing processing method is difficult to meet urgent production requirements. Therefore, a new processing mode is needed, which can improve the processing precision and the processing efficiency, reduce the manual intervention and realize the automatic processing. Disclosure of utility model The utility model provides a pulley bracket processing tool, which aims to solve the problem that a pulley bracket needs to be subjected to repeated sequence conversion and clamp replacement in the traditional method in the processing process. The pulley support machining tool comprises a positioning support frame, wherein a pulley support fixing device, a lifting device and an indexing positioning disc are arranged on the positioning support frame, the lifting device is arranged at the lower part of the pulley support fixing device to drive the pulley support fixing device to move up and down, the pulley support fixing device comprises a semicircular head positioning device, a V-shaped bottom surface positioning device and a tail jacking screw rod, and the tail jacking screw rod pushes the pulley support fixing device to move along the X-axis direction to enable the semicircular head positioning device to coincide with the indexing positioning disc