JPH0481235A - Apparatus for supplying lubricating oil into machine tool - Google Patents

Abstract

PURPOSE:To supply lubricating oil at suitable frequency by constituting a machine tool having machining position index mechanism for plural tools and tool lubricating oil supplying device so as to supply the lubricating oil when count value in each tool becomes the preset times. CONSTITUTION:In the machine tool 1 providing the index mechanism 5 having plural tools and indexing optional tool at machining position and the lubricating oil supplying device 24 for supplying the lubricating oil into the tool at machining position, the count means 46 for each tool counting the movement in each tool, is arranged and lubricating oil supplying command means 47 for executing the lubricating oil supply to a lubricating oil supplying device 24 at each time, when the count value in each tool in the above means reaches to the preset movement times, is arranged. By this method, supply of the lubricating oil in each tool can be executed at the suitable frequency.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a lubricating oil supply device applied to a machine tool equipped with a tool indexing mechanism such as a turret punch press.

[Conventional technology]

Conventionally, turret punch presses count the number of punches and spray lubricating oil onto the tool at the punch position when a set number of punches is reached.

According to this, during long-term operation, lubricating oil is supplied to each tool in proportion to the number of punches for each tool.

[Problem to be solved by the invention]

However, it is only considered to be proportional when considering a fairly long period of time, and when considering the required period of lubrication, there is a bias depending on the tool.

For example, if the set number of times is 100, a certain tool will cause 98
If you punch twice, when you index another tool afterwards, lubricant will be sprayed with two punches.

In this way, lubricating oil is not necessarily supplied to the tool that actually punches the most. Such uneven lubricating may be repeated in the same way depending on the cutting program, and the lack of lubricating oil may shorten tool life or degrade machining quality.

An object of the present invention is to provide a lubricating oil supply device for a machine tool that can supply lubricating oil to each tool at an appropriate frequency.

[Means to solve the problem]

The structure of this invention will be explained with reference to FIG. 1 corresponding to an embodiment.

The lubricating oil supply device of this machine tool (1) is a tool (Tl)
- (Tn) is provided with a tool-by-tool counting means (46) for counting the number of operations, and a lubrication command means (47) for issuing a lubrication command (a) every time the tool-specific count value of this means (46) reaches a set number of operations. ).

The machine tool (1) has a plurality of tools (TI) to (Tn), and has an indexing mechanism (5) that indexes any tool (TI) to (Tn) to a machining position (P), and a machining position (P). ) tool (T
) and an oil supply device (24) for supplying lubricating oil.

[For production]

Each of the tools (TI) to (Tn) of the machine tool (1) is indexed to a machining position (P) by an indexing mechanism (5) and performs a machining operation. The number of operations is counted by the tool-by-tool counting means (46), and when the tool-by-tool count value reaches the set number of operations, the lubrication command means (47) issues a lubrication command (a). In response to this command, oil is supplied by the oil supply device (24).

〔Example〕

An embodiment of the present invention will be explained based on FIGS. 1 to 5.

As shown in FIG. 2, the machine tool 1 consists of a turret punch press, and two lower turrets 2.3 are installed rotatably around the same axis. The upper and lower turrets 2.3 each have a punching tool T and a die tool attached to each tool station on the circumference, and are indexed and rotated in synchronization with each other by an index motor 4 (FIG. 1). These upper and lower turrets 2.3 and index morks 4
The indexing mechanism 5 is constituted by the above.

Each puncher T (Tl to Tn) of the upper turret 2 is driven up and down by the ram 7 of the slide drive mechanism 6 at the punching position P. The slide drive mechanism 6 converts the rotation of the crankshaft 8 through the pitman 9 into the vertical movement of the ram 7, and the rotation of the flywheel 11 shown in FIG. 1 is transmitted to the crankshaft 8 through the clutch brake 10. be done. The flywheel 11 is continuously rotated by a presmoke (not shown) via a belt hung around its outer periphery.

In FIG. 2, a work W is placed on a work table 14 that moves back and forth (in the Y-axis direction) on a rail 13 of a bed 12, and a work boulder 15 moves left and right (in the X-axis direction).
is held and an arbitrary location is sent to punch position ff1P. The work table 14 and work holder 15 constitute a work feed mechanism 16.

A sub-punching tool 18a of the sub-head 18 is provided on the frame 17 near the punching position P, and a sub-die tool 8b is provided below it. subhead 1
8 is used for auxiliary processing.

FIG. 3 shows an enlarged view of the vicinity of the punch position P. The ram 7 includes an upper frame 17 and a guide member 19 on its lower surface.
It passes through a guide hole 20 provided over the area so as to be freely raised and lowered, and a coupling groove 7a at the lower end is removably engaged with a T-bulged head 21 of the puncher T. The ring-shaped support plate 23 engages with the T-bulging head 21 at a location other than the punching position P and prevents the punching tool T from falling off from the ni-turret 2.
-1 is attached to the frame 17 with bolts 22.

A circular arc notch 23a into which the T-bulged head 21 is loosely fitted is formed in the punch position P of the ring-shaped support plate 23.

The oil supply device 24 will be explained. In the vicinity of the punching position P, two nozzles 25 for spraying lubricating oil onto the punching tool T are formed at the tips of two pipes 26, respectively. The pipe 26 is attached to the side surface of the guide plate 19 with a pipe band 27.

FIG. 5 shows the lubricating oil supply system for the entire punch press. The pipes 26 of the two nozzles 25 are each connected to a solenoid valve Sv of a distributor 29 via a pipe connector 28, and from the distributor 29 to another distributor 30 and a lubricating oil pump via a T-shaped connecting pipe 31. 32.

From the distributor 29, the ram bushing 3
3, upper turret bearing 34, and index pin 35
The oil supply pipe is also connected to the distributor 3.
From 0 onwards, an oil supply pipe is connected to the subhead 18, the lower turret bearing 36, and the lower index pin 37.

The upper and lower index pins 35 and 37 are the upper and lower turret I-
The locking holes (
(not shown). The distributor 38 has
The left and right crankshaft bushings 39 and 40 are connected to the pitman bushing 41 and the like.

Figure 1 shows the control system. The numerical control device NG includes an arithmetic control section 43 that analyzes and executes the cannibal program 42, and a programmable controller P that performs sequence control of each section.
It consists of C. The clutch brake 10 of the slide drive mechanism 6 and each axis servo motor 44 of the workpiece feed mechanism 16 are driven by the shaft drive command from the arithmetic control section 43 .

The programmable controller PC includes a tool command execution means 45, a tool side counting means 46, and a lubrication command means 47.
and has. The tool command execution means 45 drives the index mortar 4 of the turret 2.3 in accordance with the tool command code transferred from the cutting program 42 via the arithmetic control section 43.

The tool-side counting means 46 is a means for counting the number of punches for each of the punching tools T1 to Tn of the upper turret 2, and is a means for counting the number of punches for each of the punching tools T1 to Tn of the upper turret 2.
9, and punch count storage means 50. The used tool determining means 48 determines which punching tools T1 to T at the punching position P are used.
This is means for determining n from the tool command code of the tool command code execution means 45. The punch count storage means 50 is provided with a storage area for the punch count for each of the punching tools T1 to Tn.

The refueling command means 47 compares the count values of the number setting means 51 and the number of punching storage means 50 with the number setting means 51 which sets the number of punches to be refueled for each of the punching tools T1 to Tn, and controls the electromagnetic power of the oil supply device 24. The comparison means 52 provides a refueling command a to the valve SV.

The operation of the above configuration will be explained. Each of the punching tools T1 to Tn is indexed to a punching position P by rotation of the turret 2, and driven to punch by a ram 7 of a slide drive mechanism 6. The number of punches is counted for each punching tool TI-Tn and stored in the tool-specific storage area of the punch number storage means 50.

The number of punches is counted by the punch number counting means 49 when a punch command is sent to the clutch brake 10.
This is performed by incrementing the count value in the corresponding tool-specific storage area of the punch count storage means 50. Alternatively, the actual operation of the ram 7 is detected by sensors and counted.

In this way, processing is performed with each of the punching tools T1 to Tn while counting the number of punches on the tool side.

When the count value on the tool side reaches the number of times set for each tool in the number setting means 51, the comparison means 52 outputs the solenoid valve S of the oil supply device 24.
A refueling command is output to V, and the punch position P is output from the nozzle 25.
The punching tool T is refueled. The count number of punches that has reached the set number of punches in the number of punches storage means 50 is cleared to zero,
The lubricating oil supply is repeated each time the set number of times is reached. In FIG. 1, the tool address T is set in the number setting means 51.
The numerical values shown corresponding to 1 to Tn are examples of the number of settings,
In the case of punching tool T1, oiling is performed by punching 20 times, and in the case of punching tool T, oiling is performed by punching 10 times.

This lubricating oil supply device manages the number of punches and supplies lubricating oil to the tool side in this way, so each punching tool TI-
Appropriate refueling can be performed on Tn. In particular, in this embodiment, the number of punches to be lubricated is set to an arbitrary number on the tool side by the number setting means 51, so that each of the punching tools T1 to Tn, which require different lubricating frequencies, can be lubricated at the optimum frequency. I can do it.

In the above embodiment, the set number of punches for refueling is set on the tool side, but each tool may be refueled at the same set number of punches.

Furthermore, although the above embodiment has been described with reference to the application to a turret punch press, the present invention can be applied to general machine tools equipped with a tool indexing mechanism.

〔Effect of the invention〕

The machine tool lubricating oil supply device of the present invention is provided with a tool-specific counting means for counting the number of operations for each of a plurality of tools, and lubrication is performed when the count value reaches a set number of times for each tool. This has the effect that lubricating oil can be supplied at an appropriate frequency.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the configuration of an embodiment of the present invention, Fig. 2 is a partially cutaway side view of the punch press, Fig. 3 is an enlarged sectional view of the vicinity of the punch position, and Fig. 4 is the guide thereof. The bottom view of the member, FIG. 5, is also an explanatory diagram of the entire piping of the lubricating oil supply system. 1... Machine tool, 2, 3... Turret, 4... Index moke, 5... Indexing mechanism, 6... Slide drive mechanism, 7... Ram, IO... Clutch brake , 16... Workpiece feeding mechanism, 24... Oil supply device,
25... Nozzle, 26... Pipe, 43... Arithmetic control unit, 46... Tool-specific counting means, 47... Lubrication command means, 49...++ Punching number counting means, 50... Punching number storage means, 51... Number of punching setting means, 52... Comparison means, N
C... Numerical control device, P... Punch position (processing position), PC... Programmable controller, T, T1
~Tn...Puntier tool

Claims (1)

[Claims] A tool-specific count that counts the number of operations for each tool in a machine tool that has a plurality of tools and is equipped with an indexing mechanism that indexes any tool to a machining position and an oil supply device that supplies lubricating oil to the tool at the machining position. 1. A lubricating oil supply device for a machine tool, characterized in that a lubricating oil supply device for a machine tool is provided, and a lubricating oil supplying device is provided, the oil supply commanding device causing the oil supply device to refuel every time a count value for each tool of the device reaches a set number of operations.