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CN-224214595-U - Heavy-load buffer connection structure of low-speed large-torque motorized spindle

CN224214595UCN 224214595 UCN224214595 UCN 224214595UCN-224214595-U

Abstract

The utility model relates to the technical field of electric spindle connection, and discloses a heavy-load buffer connection structure of a low-speed high-torque electric spindle, which comprises an electric spindle, a connecting shaft and a cross insert block, wherein a cross slot is arranged on one side of the electric spindle, the cross insert is designed to be integrated with the connecting shaft, the electric spindle is inserted into the connecting shaft, and buffer mechanisms are designed at two ends of four right angles of the cross insert. According to the utility model, firstly, the cross slot is designed at one end of the electric spindle, the cross insert block is designed at one end of the connecting shaft, the damping rods, the springs and the buffer balls are designed at two ends of each right angle of the cross insert block, when the cross insert block receives torque force, the buffer balls are pressed into the accommodating grooves, and the matched design of the springs and the damping rods can buffer the cross insert block in the process, so that the situation that the cross insert block collides with the cross slot to be worn is reduced, and the service life of a workpiece is prolonged.

Inventors

  • Wu baoyang
  • WU BAOCHENG
  • YANG BEIBEI

Assignees

  • 河南鼎坚机械科技有限公司

Dates

Publication Date
20260508
Application Date
20250714

Claims (6)

  1. 1. The heavy-load buffer connection structure of the low-speed large-torque electric spindle comprises an electric spindle (1), a connecting shaft (2) and a cross insert block (4) and is characterized in that a cross slot (3) is formed in one side of the electric spindle (1), the cross insert block (4) and the connecting shaft (2) are integrally designed, the electric spindle (1) is connected with the connecting shaft (2) in an inserting mode, and buffer mechanisms (16) are respectively designed at two ends of four right angles of the cross insert block (4); The buffer mechanism (16) comprises a storage groove (7), a damping rod (8), springs (9) and buffer balls (10), wherein the storage groove (7) is formed in each of the four right-angle two ends of the cross insert block (4), the damping rod (8) is designed in each storage groove (7), the buffer balls (10) are arranged at the output end of each damping rod (8), the springs (9) are sleeved at the outer ends of the damping rods (8), and one end of each buffer ball (10) extends out of the side of the cross insert block (4).
  2. 2. The heavy-duty buffer connection structure of the low-speed high-torque motorized spindle according to claim 1, wherein front end fixing plates (14) are integrally arranged at two ends of the connecting shaft (2), front end damping rubber (11) and middle damping rubber (12) are sequentially adhered to the inside of each front end fixing plate (14), and rear end fixing plates (15) are integrally arranged at two ends of the motorized spindle (1).
  3. 3. The heavy-duty buffer connection structure of the low-speed large-torque motorized spindle according to claim 2, wherein a connecting rod (5) is inserted between the front end fixing plate (14) and the rear end fixing plate (15) on the same side, one end of each connecting rod (5) is designed with threads, and one end of each connecting rod (5) with threads is sleeved with a locking bolt (6) in a threaded mode.
  4. 4. The heavy-duty buffer connection structure of the low-speed high-torque motorized spindle according to claim 2 is characterized in that the inside of each of the two rear end fixing plates (15) is stuck with rear end damping rubber (13).
  5. 5. The heavy-duty buffer connection structure of the low-speed high-torque motorized spindle is characterized in that the size of the cross slot (3) is slightly larger than that of the cross insert block (4).
  6. 6. The heavy-duty buffer connection structure of the low-speed and high-torque motorized spindle according to claim 1, wherein one end of each buffer ball (10) is tightly attached to the storage groove (7) at the same position.

Description

Heavy-load buffer connection structure of low-speed large-torque motorized spindle Technical Field The utility model relates to the technical field of electric spindle connection, in particular to a heavy-load buffer connection structure of a low-speed high-torque electric spindle. Background The heavy-load connecting structure of the low-speed large-torque electric spindle is a key functional component for an electric spindle system under the working conditions of low speed and large torque and mainly used for connecting the electric spindle with a load (such as a cutter, a workbench and the like). In modern industrial processing, particularly for processing large and heavy workpieces, the low-speed high-torque motorized spindle plays a key role. However, under the heavy-duty working condition, the electric spindle can bear huge impact force and torque fluctuation, and most of traditional connecting structures lack of buffer structures, so that the situation that the connecting ends are worn and broken is easily caused. Therefore, a person skilled in the art provides a heavy-load buffer connection structure of a low-speed high-torque motorized spindle to solve the problems in the prior art. Disclosure of Invention The utility model aims to solve the defects in the prior art and provide a heavy-load buffer connection structure of a low-speed large-torque electric spindle, firstly, a cross slot is designed at one end of the electric spindle, a cross insert block is designed at one end of a connecting shaft, damping rods, springs and buffer balls are designed at two ends of each right angle of the cross insert block, when the cross insert block receives torque force, the buffer balls are pressed into a storage groove, and the matched design of the springs and the damping rods can buffer the cross insert block in the process, so that the situation that the cross insert block collides with the cross slot to generate abrasion is reduced, and the service life of a workpiece is prolonged. In order to achieve the above purpose, the present utility model provides the following technical solutions: The heavy-load buffer connection structure of the low-speed large-torque electric spindle comprises the electric spindle, a connecting shaft and a cross insert block, wherein a cross slot is formed in one side of the electric spindle, the cross insert block and the connecting shaft are integrally designed, the electric spindle is inserted into the connecting shaft, and buffer mechanisms are respectively designed at two ends of four right angles of the cross insert block; The damping mechanism comprises storage grooves, damping rods, springs and damping balls, wherein the storage grooves are formed in two ends of four right angles of the cross-shaped insert block, the damping rods are designed in the storage grooves, the damping balls are arranged at the output ends of the damping rods, the springs are sleeved at the outer ends of the damping rods, and one end of each damping ball extends out of the side of the cross-shaped insert block; Through above-mentioned technical scheme, at first, through the one end design cross slot at the electric main shaft, design cross insert at the one end of connecting axle, and the both ends of every right angle of cross insert all are designed with damping pole, spring and buffer ball, when the cross insert receives the moment of torsion, can make the buffer ball push into the storage tank, and the collocation design of spring and damping pole can cushion the cross insert of this in-process, reduces the cross insert and collides with the cross slot and appear wearing and tearing the condition, has improved the life of work piece. Further, front end fixing plates are integrally arranged at two ends of the connecting shaft, front end damping rubber and middle damping rubber are sequentially adhered to the inside of each front end fixing plate, and rear end fixing plates are integrally arranged at two ends of the electric spindle; Through above-mentioned technical scheme, thereby the inside of every front end fixed plate glues in proper order has front end damping rubber and middle part damping rubber and makes things convenient for the connecting rod to carry out tiny activity in front end fixed plate inside, and the installation of connecting rod is made things convenient for in the design of front end fixed plate and rear end fixed plate. Further, connecting rods are inserted between the front end fixing plate and the rear end fixing plate on the same side, threads are designed at one end of each connecting rod, and locking bolts are sleeved at one threaded end of each connecting rod; Through above-mentioned technical scheme, insert between same side front end fixed plate and rear end fixed plate and be equipped with the connecting rod, the one end of every connecting rod all designs the screw thread, thereby the equal thread bush of the one end that every connecting rod had the screw thre