CN214557632U - Upright column clamping device of radial drilling machine - Google Patents

Abstract

The utility model provides a stand clamping device of radial drill, eccentric cover installs on pressing from both sides tight motor through the parallel key, planetary gear installs on the eccentric shaft, and fixed gear fixes on the casing, and planetary gear's lower gear meshes with fixed gear, and planetary gear's upper gear meshes with the output gear, and the push rod passes through the parallel key to be fixed in the downthehole of voussoir, and the response piece is fixed at the lower terminal surface of voussoir, sets up micro-gap switch in the response piece lower part, and lock nut installs on the push rod, sets up the nut on push rod upper portion. The clamping device of the radial drilling machine column replaces a traditional hydraulic clamping mechanism, so that the clamping is fast, and the clamping device has no problem of oil leakage and environmental pollution; the problem of the vertical swing of the rocker arm when the vertical column is clamped is solved, and the vertical column clamping device of the radial drilling machine is accurate and reliable in work. The utility model discloses a function is good, simple structure, convenient operation, and reasonable in process, low cost, the reliable operation, the fault rate is low, is applied to in the machining trade.

Description

Upright column clamping device of radial drilling machine

Technical Field

The utility model relates to a radial drill's stand clamping device in the machining trade.

Background

At present, a radial drilling machine is a machine tool for machining holes with a plurality of large parts by single piece or batch production in the machining industry. A drill press is provided in which a spindle head is movable on a swing arm and revolves around a column with the swing arm. The rocker arm moves up and down along the upright column to adapt to processing workpieces with different heights. The smaller workpiece is mounted on the table and the larger workpiece is placed directly on the machine base or ground. Radial drilling machines are widely used in single-piece and medium-to-small-lot production to machine holes in workpieces of relatively large volumes and weights. The main variants of radial drilling machines are sliding seat type and universal type. The slide seat type radial drilling machine is formed by changing a base of a base type radial drilling machine into a slide seat, and the slide seat moves along a guide rail of a machine body so as to enlarge the processing range. The rocker arm of the universal rocker arm drilling machine does vertical and rotary motion and does horizontal movement, and the main spindle box does inclination adjustment on the rocker arm so as to adapt to the processing of all parts of a workpiece. In addition, there are car, wall and numerically controlled radial drills and the like. The radial drilling machine is a hole processing device and is used for processing various forms such as drilling, reaming, tapping, end face scraping and the like. According to usage and structure classification, the drilling machine is divided into an upright drilling machine, a bench drilling machine, a multi-hole drilling machine, a radial drilling machine and other special drilling machines and the like. Among various drilling machines, the radial drilling machine is convenient and flexible to operate, wide in application range and typical, is particularly suitable for hole machining of porous large parts in single piece or batch production, and is a common machine tool in common machining workshops. The rocker arm and the clamping mechanism of the radial drilling machine have the defects that the guide precision of the guide rail is poor, the main shaft has no limiting function, the guide rail structure is difficult to repair after being abraded, the control is complex, some operations are difficult to realize, the structure is complex, the cost is high, the function is poor, the strength and the rigidity are low, the transmission precision is low, the service life is short, and the failure rate is high.

Patent No. 201510820154.X discloses a rocker arm and a clamping mechanism of a digital display type radial drilling machine, and the main difference between the patent application and the patent is that 201510820154.X discloses a rocker arm and a clamping mechanism of a digital display type radial drilling machine, which adopt a hydraulic structure, namely, an oil cylinder cam pushes a lever to drive a pull rod to press a clamping pressure plate tightly, so that clamping is realized. The invention adopts a mechanical transmission structure that a clamping motor drives a wedge block to move up and down through a planetary gear and a push rod, so that the clamping is fast, the problem of oil leakage and environmental pollution is avoided, and the upright post clamping device works more accurately and reliably.

Therefore, it is a new problem to be solved urgently to develop a column clamping device of a radial drilling machine.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a radial drill's stand clamping device, this invention has replaced traditional hydraulic clamping mechanism, not only makes to press from both sides tightly swiftly, makes stand clamping device no oil leakage problem again, when having solved the stand and pressing from both sides tightly, the rocking arm luffing motion problem makes stand clamping device work more accurate, reliable.

The purpose of the utility model is realized like this: the utility model provides a radial drill's stand clamping device, including pressing from both sides tight motor, the parallel key, planetary gear, the output gear, lock nut, the parallel key, the nut, the voussoir, the push rod, the response piece, micro-gap switch, the counter weight, the casing, fixed gear, eccentric cover installs on pressing from both sides tight motor through the parallel key, planetary gear installs on the eccentric shaft, fixed gear fixes on the casing, planetary gear's lower gear and fixed gear meshing, planetary gear's upper gear and output gear meshing, the push rod passes through the parallel key to be fixed in the hole of voussoir, the lower terminal surface at the voussoir is fixed to the response piece, set up micro-gap switch in the response piece lower part, lock nut installs on the push rod, set up the nut on push rod upper portion.

The main point of the utility model lies in its structure. The working principle and the operation method are as follows: the upright post clamping devices of the radial drilling machine are uniformly distributed on three positions on the circumference of the lower part of the inner post in an angle of 120 degrees, so that the clamping force of the inner post and the outer post is uniformly distributed; the clamping motor drives the wedge block to move up and down through the flat key, the planetary gear and the push rod; when the push rod moves upwards, the wedge block is wedged into the conical surface of the conical hole of the outer column, and meanwhile, the corresponding surface of the wedge block is tightly pressed on the inner column, so that the inner column and the outer column are tightly clamped together; otherwise, when the output gear drives the push rod to move downwards, the wedge block is pulled away from the inner conical surface of the outer column, so that the inner column and the outer column are clamped and loosened; because the upper gear has two teeth less than the lower gear, the rotating speed of the output gear is greatly reduced, and the torque of the output gear is greatly increased; the push rod is pushed to move upwards through the threaded hole of the output gear, and the wedge block is pushed to clamp the inner column and the outer column; the push rod can only move but can not rotate because the wedge block is arranged in the guide groove of the inner column, and the push rod is fixed in the hole of the wedge block through a flat key; in addition, the planet gear rotates around the fixed gear at a high speed through the eccentric sleeve to generate a larger centrifugal force, and the balance force is set so as to balance the force; the induction sheet is fixed on the lower end surface of the wedge block, moves up and down along with the wedge block, and triggers the micro switch when moving down to the right position, so as to send a loosening signal and carry out the next work; the clamping device of the radial drilling machine column replaces a traditional hydraulic clamping mechanism, so that the clamping is fast, and the clamping device has no problem of oil leakage and environmental pollution; the problem of the vertical swing of the rocker arm when the vertical column is clamped is solved, and the vertical column clamping device of the radial drilling machine is accurate and reliable in work.

Compared with the prior art, the upright post clamping device of the radial drilling machine has the advantages of excellent function, simple structure, convenient operation, reasonable process, low cost, reliable work, low failure rate and the like, and can be widely applied to the machining industry.

The present invention will be described in detail with reference to the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged view of a portion I of fig. 1.

Fig. 3 is a view of the installation position of the present invention on the radial drill.

Fig. 4 is a bottom view of fig. 3.

Detailed Description

Referring to the attached drawings, the stand column clamping device of the radial drilling machine comprises a clamping motor 1, a flat key 2, a planetary gear 3, an output gear 4, a locking nut 5, a flat key 6, a nut 7, a wedge 8, a push rod 9, a sensing piece 10, a micro switch 11, a balance weight 12, a shell 13, a fixed gear 14 and an eccentric sleeve 15, wherein the eccentric sleeve 15 is installed on the clamping motor 1 through the flat key 2, the planetary gear 3 is installed on the eccentric shaft 15, the fixed gear 14 is fixed on the shell 13, a lower gear of the planetary gear 3 is meshed with the fixed gear 14, an upper gear of the planetary gear 3 is meshed with the output gear 4, the push rod 9 is fixed in a hole of the wedge 8 through the flat key 6, the sensing piece 10 is fixed on the lower end face of the wedge 8, the micro switch 11 is arranged on the lower portion of the sensing piece 10, the locking nut 5 is installed on the push rod 9, and the nut 7 is arranged on the upper portion of the push rod 9.

The working principle and the operation method of the upright post clamping device of the radial drilling machine are as follows: the upright post clamping devices of the radial drilling machine are uniformly distributed on three positions on the circumference of the lower part of the inner post in an angle of 120 degrees, so that the clamping force of the inner post and the outer post is uniformly distributed; the clamping motor 1 drives the wedge block 8 to move up and down through the flat key 2, the planetary gear 3 and the push rod 9; when the push rod 9 moves upwards, the wedge block 8 is wedged into the conical surface of the conical hole of the outer column, and meanwhile, the corresponding surface of the wedge block 8 is tightly pressed on the inner column so as to tightly clamp the inner column and the outer column together; on the contrary, when the output gear 4 drives the push rod 9 to move downwards, the wedge block is pulled away from the inner conical surface of the outer column, so that the inner column and the outer column are clamped and loosened; because the upper gear is 2 teeth less than the lower gear, the rotating speed of the output gear 4 is greatly reduced, and the torque of the output gear is also greatly increased; the push rod 9 is pushed to move upwards through the threaded hole of the output gear 4, and the wedge block 8 is pushed to clamp the inner column and the outer column; the push rod 9 can only move but can not rotate because the wedge block is arranged in the guide groove of the inner column, and the push rod 9 is fixed in the hole of the wedge block 8 through the flat key 6; in addition, the planet gear 3 rotates around the fixed gear 14 at a high speed through the eccentric sleeve 15, generates a large centrifugal force, and is provided with a balance weight 12 for balancing the force; the induction sheet 10 is fixed on the lower end surface of the wedge block 8, moves up and down along with the wedge block 8, and touches the micro switch 11 when moving down to the right position, so as to send a loosening signal to carry out the next work; the clamping device of the radial drilling machine column replaces a traditional hydraulic clamping mechanism, so that the clamping is fast, and the clamping device has no problem of oil leakage and environmental pollution; the problem of the vertical swing of the rocker arm when the vertical column is clamped is solved, and the vertical column clamping device of the radial drilling machine is accurate and reliable in work.

In fig. 3C, a pillar brace is shown.

Claims (1)

1. The utility model provides a radial drill's stand clamping device, includes clamping motor, parallel key, planetary gear, output gear, lock nut, parallel key, nut, voussoir, push rod, response piece, micro-gap switch, balanced heavy, casing, fixed gear, eccentric cover, its characterized in that: the eccentric sleeve is installed on the clamping motor through a flat key, the planetary gear is installed on the eccentric shaft, the fixed gear is fixed on the shell, a lower gear of the planetary gear is meshed with the fixed gear, an upper gear of the planetary gear is meshed with the output gear, the push rod is fixed in a hole of the wedge block through the flat key, the induction sheet is fixed on the lower end face of the wedge block, the micro switch is arranged on the lower portion of the induction sheet, the locking nut is installed on the push rod, and the nut is arranged on the upper portion of the push rod.

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