KR100445262B1 - Rail support for splash guard of numerical control machine - Google Patents

Abstract

The present invention can be operated flexibly and stably the splash door opening and closing in the front of the numerical control shelf to prevent the departure of the splash door and improve the operability of the shelf, to ensure the safety of the operator and reduce the assembly labor will be.

In the present invention, the splash door slidingly coupled to the upper front end of the numerical control shelf opening and closing left and right, the shaft housing 32 is bolted to the upper side of the splash door 30; A bush 36 inserted through the shaft housing 32 and fixed to the shaft housing 32 by engaging a snap ring 34 at both ends thereof; An L.M shaft 38 in which the bush 36 of the shaft housing 32 is inserted to enable rotation and rolling movement and is disposed in the longitudinal direction on the numerical control shelf; The shaft bracket 40 is bolted to both ends of the LM shaft 38 and fixed to the support plate 42 formed at the front side of the top cover 20 of the shelf to support the LM shaft 38. Provided is a rail support for conveying a splash door of a numerically controlled shelf comprising: a.

The present invention having such a configuration is to ensure that the splash door that is opened and closed at the front of the numerical control shelf can be transported stably and smoothly to improve the workability and ensure the safety of the operator.

Description

Rail support for splash door conveying of numerical control lathes {Rail support for splash guard of numerical control machine}

The present invention relates to a rail support for conveying a splash door of a numerically controlled shelf, and more particularly, to smoothly and stably open and close a splash door that is opened and closed at the front of the numerically controlled shelf by using a shaft and a bush rotated on the shaft. A rail support for conveying a splash door of a numerically controlled lathe is provided.

In general, a machine tool, that is, a numerically controlled lathe, is a spindle unit in which a shaft interlocks with a high speed rotation of a servomotor and a chuck is interposed to clamp a workpiece on the axis, and a centrifugal force due to a high speed rotation of the workpiece is used to depart the center. A tailstock unit positioned on the same centerline as the drive shaft of the spindle unit to support the center of the workpiece, a ball screw unit installed on a bed above the spindle unit and performing horizontal and vertical movements, and the ball screw It is installed on the upper part of the feeder of the unit and consists of a tool with various tools for accessing the workpiece and for the byte work or turning work.

The numerically controlled lathe configured as described above is provided with a gantry loader for supplying a workpiece for processing and conveying the processed workpiece, so as to grip the workpiece bitten by the chuck with a gripper provided on the lower side of the gantry loader. In this case, in order to grip the workpiece bite by the gripper, the gripper must enter the shelf. For this purpose, the upper part of the numerical control shelf is provided with a top cover that opens and closes the cylinder as an operation means, and is separated from the top cover. Sliding is coupled to the upper and lower sides of the numerical control shelf, the front is opened and closed is provided with a splash door that can secure the safety and work space of the operator.

In the numerically controlled shelf as described above, the conventional splash door 30 has a rolling bearing or a cam follower sliding or sliding along a rail 22 bent over the shelf as shown in FIGS. 1 and 2. The splash door 30 is rotated to be transported, but the conveying device of the splash door 30 has a lot of shaking when the splash door 30 is transported, so that opening and closing of the door is unstable, and the rail 22 There was a problem that the rolling bearing or cam follower moving along the rail 22 may be easily separated when foreign matter enters.

In addition, when the workpiece bite by the chuck 24 in the shelf 10 is processed, if the workpiece is separated by the rotation by the unstable chucking and collides with the splash door 30, the splash door 30 due to the impact The loose part of the loose rail 22 can be separated and fall out, thereby causing injury to the worker.

This problem poses a greater risk when machining a significant weight of the workpiece, and thus the operator has to be positioned at a certain distance from the lathe when machining the workpiece.

In addition, the transfer structure of the splash door as described above is frequently broken, the assembly labor occurs, resulting in an increase in the production equipment cost, the labor cost caused by frequent repairs caused a decrease in the work efficiency.

Accordingly, the present invention has been made in view of the above-mentioned problems, it is possible to operate the splash door that is opened and closed at the front of the numerical control shelf flexibly and stably to prevent the departure of the splash door and improve the operability of the shelf The object of the invention is to ensure the safety of workers and reduce the assembly labor.

1 is a front view schematically showing a conventional numerical control lathe

2 is a plan view schematically showing a front portion of a conventional numerical control lathe

Figure 3 is an exploded perspective view showing the coupling process of the bush and the shaft housing of the present invention

Figure 4 is a plan view showing a rail support for transporting the splash door of the present invention

5 is a front view of FIG. 4

Figure 6 is a side cross-sectional view along the A-A plane of Figure 4

Figure 7 is a side cross-sectional view showing a state in which the splash door of the present invention is installed on the shelf.

* Description of the symbols for the main parts of the drawings *

10: shelf 20: top cover

22, 46: rail 24: chuck

30: splash door 32: shaft housing

33: bolt coupling hole 34: snap ring

35, 43: Bolt 36: Bush

38: L.M shaft 40: shaft bracket

42: support plate 43: bolt

44: roller

In order to achieve the above object, in the present invention, the splash door is slidingly coupled to the upper front end of the numerical control shelf, the left and right opening and closing, the shaft housing bolted to the upper side of the splash door; A bush inserted into the shaft housing and fixed to the shaft housing by coupling a snap ring at both ends thereof; An L.M shaft in which the bush of the shaft housing is rotatably fitted and capable of rolling, and which is disposed in the longitudinal direction on the numerical control shelf; A bolt for conveying splash doors of a numerically controlled shelf, comprising a shaft bracket which is bolted to both ends of the LM shaft and fixed to the support plate formed at the front side of the top cover of the shelf to support the LM shaft. Support is provided.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 to 7, the rail support for transporting the splash door of the numerically controlled shelf according to the present invention is a sliding door which is slidably coupled to the upper front end of the numerically controlled shelf to open and close left and right. A shaft housing 32 bolted to an upper side of the splash door 30; A bush 36 inserted through the shaft housing 32 and fixed to the shaft housing 32 by engaging a snap ring 34 at both ends thereof; An L.M shaft 38 in which the bush 36 of the shaft housing 32 is inserted to enable rotation and rolling movement and is disposed in the longitudinal direction on the numerical control shelf; The shaft bracket 40 is bolted to both ends of the LM shaft 38 and fixed to the support plate 42 formed at the front side of the top cover 20 of the shelf to support the LM shaft 38. Is made of.

At least one bolt coupling hole 33 is formed at one side of the shaft housing 32 to be coupled to the upper side of the splash door 30 through the bolt 35, and a plurality of bolt coupling holes 33 are provided at the splash door 30. May be combined. In addition, when a plurality of shaft housings 32 are coupled to the splash door 30, the shaft door 32 should be coupled in consideration of the width at which the splash door 30 is opened and closed at the front of the shelf 10.

The bush 36 penetrates through the center of the shaft housing 32 and is snapped on both sides of the bush 36 protruding outside the shaft housing 32 so as not to be separated from the shaft housing 32. 34 is fitted. In addition, the bush 36 is preferably a ball bush.

The L.M shaft 38 has a smooth outer surface to reduce friction with the bush 36, and both ends thereof are bolted and fixed to the shaft bracket 40.

The shaft bracket 40 may be fixed to the support plate 42 provided on the upper side of the shelf 10 with bolts 43, and one side of the top cover 20 or the left and right sides of the shelf 10. It may be fixed to one side of the cover 26.

The support plate 42 is preferably formed on the upper surface of the shelf 10 so that the shaft housing 32 and the splash door 30 coupled thereto do not protrude upward of the shelf 10.

In addition, a roller 44 or a bearing (not shown) is provided at the lower side of the splash door 30 so as to be flexibly moved while rolling along the rail 46 separately provided at the lower side.

The present invention configured as described above can stably and flexibly operate the splash door that is opened and closed at the front of the numerical control shelf to protect the safety of the operator and improve the workability.

That is, when the operator manually opens and closes the splash door 30, the bush 36 of the shaft housing 32 coupled to the upper side of the splash door 30 may flexibly move along the LM shaft 38. Thus, there is no fear that the shaft housing 32 and the splash door 30 coupled thereto are separated from the LM shaft 38, thereby preventing a safety accident.

The snap ring 34, which is fitted to a portion of the bush 36 protruding from the shaft housing 32 so that the bush 36 is not separated from the shaft housing 32, is preferably made of a metal material. It is made of a plastic material or rubber material having the bush 36 to effectively prevent the departure from the shaft housing (32).

In the process of assembling the splash door transfer rail support of the numerically controlled shelf of the present invention, the bush 36 is first coupled to the shaft housing 32 and the bush 36 is fitted to the LM shaft 38. After that, the shaft housing 32 is fixed to the splash door 30, and the LM shaft 38 is fixed to the shaft bracket 40, and the shaft bracket 40 is fixed to the support plate 42 on the upper side of the shelf. . There is no particular priority for the assembly process, it is possible to be made at the convenience of the operator because each component is closely assembled.

In addition, the lower side of the splash door 30 can be flexibly driven through a roller 44 or a bearing along the rail 46 provided separately under the shelf 10, so that the upper side of the splash door 30 When the bush 36 moves along the LM shaft 38, the bush 36 is stably supported from the lower side and can be interlocked.

As described above, the present invention allows the splash door to be opened and closed at the front of the numerical control shelf to be transported stably and smoothly, thereby improving workability and ensuring worker safety.

In addition, the splash door is mounted on the shelf while maintaining a firm coupling, when the heavy workpiece inside the shelf, even if the workpiece is detached from the chuck and hit the splash door, the splash door does not escape from the shelf safety of the operator Will be able to make sure.

In addition, the work can be reduced by simple and easy installation using a bush and L.M shaft, and can be very useful because it is easy to apply to existing shelves.

Claims (1)

In the splash door slidingly coupled to the upper front end of the numerical control shelf opening and closing left and right, A shaft housing 32 bolted to an upper side of the splash door 30; A bush 36 inserted through the shaft housing 32 and fixed to the shaft housing 32 by engaging a snap ring 34 at both ends thereof; An L.M shaft 38 in which the bush 36 of the shaft housing 32 is inserted to enable rotation and rolling movement and is disposed in the longitudinal direction on the numerical control shelf; The shaft bracket 40 is bolted to both ends of the LM shaft 38 and fixed to the support plate 42 formed at the front side of the top cover 20 of the shelf to support the LM shaft 38. Rail support for splash door transfer of the numerical control shelf, characterized in that consisting of.