Hot pressing shaft assembly tool
By using the guide arc groove and circular groove for guidance and limiting, and the laser light for precise positioning of the marking line, the problem of inaccurate positioning during the mandrel hoisting process is solved, achieving an efficient and convenient assembly process.
Patent Information
- Application Number
- CN202422942016.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-30
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-11-30
AI Technical Summary
In existing technologies, the mandrel cannot be accurately positioned during hoisting, which can easily scratch the shaft hole or rotor, resulting in low processing efficiency and complex equipment.
A hot-pressing shaft assembly fixture was designed, which uses a guide arc groove and a circular groove for guidance and limiting, and uses a laser light and a marking line for precise positioning. It is combined with adjustable support pads to adapt to mandrels of different lengths.
It achieves precise positioning of the mandrel, avoids rotor damage, improves processing efficiency and equipment convenience, and has strong applicability.
Smart Images
Figure CN223656387U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a hot-pressing shaft assembly tool. BACKGROUND
[0002] The existing shaft pressing modes mainly include two kinds: normal temperature shaft pressing and core heating shaft pressing. Different shaft pressing modes are selected according to the size of the shaft hole of the core. When the core with a large shaft hole size is manufactured, the heating shaft pressing mode is usually used for processing.
[0003] The heating shaft pressing can make the shaft hole larger due to thermal expansion, and the mandrel can be smoothly pressed into the shaft hole without scratching the shaft hole, thereby saving the shaft pressing time and using relatively simple mechanical equipment. However, the mandrel cannot be accurately positioned and inserted into the shaft hole during hoisting, which may scratch the shaft hole or the rotor, and needs to be improved. UTILITY MODEL CONTENTS
[0004] In view of the deficiencies of the prior art, the utility model solves the technical problems to provide a hot-pressing shaft assembly tool which is not only reasonable in structure, but also accurate in positioning, convenient and efficient.
[0005] In order to solve the above technical problems, the technical scheme of the utility model is as follows: a hot-pressing shaft assembly tool, comprising a base, a rotor positioning seat is fixedly connected to the upper end of the base through a support column, a circular groove for placing the rotor is concavely arranged on the upper end of the rotor positioning seat, a guide arc groove for guiding the rotor is formed on the outer rotor positioning seat, a through hole for the mandrel to pass through is formed in the middle of the rotor positioning seat, a support groove coaxially arranged with the through hole is formed in the base, and a support pad is arranged in the support groove.
[0006] Further, a sleeve is arranged on the top of the mandrel, a cover plate is arranged on the top of the sleeve, a circular hole is formed in the cover plate and corresponds to the hanging hole formed in the end of the mandrel, a plurality of fixed plates are uniformly distributed along the circumference of the sleeve, the bottom of each fixed plate is provided with a downward laser lamp, and the rotor and the rotor positioning seat are both provided with a corresponding mark line corresponding to the laser lamp.
[0007] Further, the bottom of the sleeve is coaxially fixedly connected with a flange, the bottom end of the fixed plate is fixedly connected to the flange, and the laser lamp is located outside the flange.
[0008] Further, the guide arc grooves are arc-shapedly extended from the top of the rotor positioning seat to the bottom of the circular groove, the guide arc grooves are communicated with the circular groove, and the top and bottom of the guide arc groove are both rounded and transitioned with the top of the rotor positioning seat and the circular groove.
[0009] Further, a plurality of receiving grooves are concavely arranged in the base from bottom to top, a pad is coaxially arranged in the receiving groove, and a screw hole is vertically formed in the base and is rotationally connected with the pad through a bolt penetrating the screw hole.
[0010] Furthermore, a level is fixed to the upper surface of the base.
[0011] Furthermore, a triangular reinforcing plate is fixedly connected between the bottom side of the support column and the upper end of the base.
[0012] Compared with the prior art, this utility model has the following advantages: the rotor is effectively guided and limited by the cooperation of the guide arc groove and the circular groove; the precise positioning of the mandrel can be completed during the hoisting process by the cooperation of the laser light and the alignment line, effectively avoiding rotor damage, which is convenient and efficient; and it can be adapted to the assembly of mandrels of different lengths by selecting different support pads, which has strong applicability.
[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;
[0015] Figure 2 for Figure 1 Enlarged diagram of A in the middle;
[0016] Figure 3 This is a top view of an embodiment of the present utility model.
[0017] In the diagram: 1-base, 2-support column, 3-rotor positioning seat, 4-rotor, 5-circular groove, 6-guide arc groove, 7-spindle, 8-through hole, 9-support groove, 10-support pad, 11-sleeve, 12-cover plate, 13-circular hole, 14-hanging hole, 15-hook, 16-fixed plate, 17-laser light, 18-alignment line, 19-flange, 20-storage groove, 21-pad, 22-screw hole, 23-bolt, 24-level, 25-triangular reinforcement plate. Detailed Implementation
[0018] To make the above-mentioned features and advantages of this utility model more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings for detailed explanation.
[0019] like Figures 1-3 As shown, a hot-pressing shaft assembly fixture includes a base 1. A rotor positioning seat 3 is fixed to the upper end of the base via a support column 2. The upper end of the rotor positioning seat is recessed with a circular groove 5 for placing a rotor 4. A guide arc groove 6 is formed on the rotor positioning seat outside the circular groove to facilitate the guidance of the rotor. A through hole 8 is formed in the middle of the rotor positioning seat for the mandrel 7 to pass through. A support groove 9 is formed on the base and is coaxial with the through hole. A support pad 10 is provided in the support groove. The support pad can be set with different thicknesses to adapt to the installation of mandrels of different lengths.
[0020] In the utility model embodiment, the sleeve pipe top is externally provided with a sleeve pipe 11, the sleeve pipe top cover is fixedly connected with a cover plate 12, a round hole 13 is formed in the cover plate and corresponds to a hanging hole 14 formed in the end of the mandrel, the hanging hole is a threaded hole, the cover plate can be fixedly connected with the mandrel through a bolt, or a hook 15 is screwed into the hanging hole through the round hole to fix the hook, and the mandrel is hoisted and moved by a lifting device through the hook, a plurality of fixed plates 16 are uniformly distributed along the circumference of the sleeve pipe, downward laser lamps 17 are arranged at the bottom of the fixed plates, and a corresponding pair of marking lines 18 are arranged on the rotor and the rotor positioning seat and correspond to the laser lamps.
[0021] In the utility model embodiment, the sleeve pipe bottom is coaxially fixedly connected with a flange 19, the bottom end of the fixed plate is fixedly connected to the flange, and the laser lamp is located outside the flange.
[0022] In the utility model embodiment, the guide arc grooves are arc-shapedly extended downwards from the top of the rotor positioning seat to the bottom of the circular groove, the guide arc grooves are communicated with the circular groove, and the top and the bottom of the guide arc groove are both rounded and transitionally connected to the top of the rotor positioning seat and the circular groove.
[0023] In the utility model embodiment, a plurality of receiving grooves 20 are concavely arranged from bottom to top at the lower end of the base, and a cushion block 21 is coaxially arranged in the receiving groove, a screw hole 22 is vertically and penetratingly formed in the base, and the cushion block is rotationally connected to the base through the screw hole and a bolt 23.
[0024] In the utility model embodiment, a level 24 is fixedly arranged on the upper surface of the base.
[0025] In the utility model embodiment, a triangular reinforcing plate 25 is fixedly connected between the bottom side of the supporting column and the upper end of the base.
[0026] The working principle of the utility model embodiment is as follows: when used, first, different thicknesses of supporting pads are selected according to the length of the mandrel and are placed into the supporting grooves, then the level is observed to determine whether the base is horizontal, if not, the cushion block is adjusted by rotating the bolt, and then the horizontal adjustment is completed, then the rotor heated is placed into the circular groove along the guide arc groove, then the assembly of the mandrel end, the sleeve pipe and the cover plate is completed, and the whole is hoisted above the rotor, the laser lamp is correspondingly positioned on each pair of marking lines, finally, the mandrel is vertically inserted into the rotor shaft hole together for cooling, the cover plate and the sleeve pipe are removed after the cooling is completed, and the assembly is completed.
[0027] The utility model is not limited to the above best embodiment, and anyone can derive other various forms of hot-pressing shaft assembly tooling under the inspiration of the utility model. Any equal change and modification made within the patent application scope of the utility model shall belong to the coverage range of the utility model.
Claims
1. A hot-pressed shaft assembly fixture, characterized in that: The device includes a base, with a rotor positioning seat fixed to the upper end of the base via a support column. The upper end of the rotor positioning seat is recessed downwards with a circular groove for placing the rotor. A guide arc groove is formed on the rotor positioning seat outside the circular groove to facilitate guiding the rotor. A through hole is formed in the middle of the rotor positioning seat for the mandrel to pass through. A support groove is formed on the base and is coaxial with the through hole. A support pad is placed inside the support groove.
2. The hot-pressed shaft assembly fixture according to claim 1, characterized in that: The top of the mandrel is fitted with a sleeve, and the top of the sleeve is covered with a cover plate. The cover plate has a circular hole that corresponds to the hook hole at the end of the mandrel. Several fixing plates are evenly distributed around the outer edge of the sleeve. Each fixing plate has a downward-facing laser light at its bottom. The rotor and the rotor positioning seat are each provided with a alignment line that corresponds to one of the laser lights.
3. The hot-pressed shaft assembly fixture according to claim 2, characterized in that: The bottom of the sleeve is coaxially fixed to a flange, the bottom end of the fixed plate is fixed to the flange, and the laser lamp is located outside the flange.
4. The hot-pressed shaft assembly fixture according to claim 1, characterized in that: The guide arc grooves all extend downwards from the top of the rotor positioning seat to near the bottom of the circular groove. The guide arc grooves are connected to the circular grooves. The top and bottom of the guide arc grooves are rounded and transition to the top of the rotor positioning seat and the circular groove, respectively.
5. The hot-pressed shaft assembly fixture according to claim 1, characterized in that: The base has several recessed storage slots at its lower end, with a pad coaxially arranged in each slot. A screw hole is vertically drilled through the base and a bolt passes through the screw hole to connect with the pad.
6. The hot-pressed shaft assembly fixture according to claim 1, characterized in that: A level is fixed to the upper surface of the base.
7. The hot-pressed shaft assembly fixture according to claim 1, characterized in that: The bottom side of the support column is fixedly connected to the upper end of the base with a triangular reinforcing plate.