KR100820365B1 - An Indexer - Google Patents

Abstract

The present invention relates to an indexer used by chucking when machining a workpiece using a variety of machine tools, the body installed with several chucks can be rotated 90 °, the chuck is a predetermined set angle (30 ° to 45 ° The angle can be adjusted within the range of the orderer's requirements.The machine can be machined on five sides, and the driving of the device is carried out by pneumatic pressure. We want to provide an indexer so that we can.

That is, the present invention constitutes an indexer 1 mounted on various machine tools to chuck the work, which is shaft-mounted between the upper and lower cylinder casings 3 installed on the left and right sides of the base panel 2. A body 5 having several chucks 4, a plurality of cylinders 6 formed in the cylinder casing 3, and end portions of the piston rods 7 which are slidable up and down in the cylinder 6 are provided. Pinned to the cylinder lever (7a) fixed to the end of the shaft (8), the body (5) has a chuck (4) with a chuck (4) installed on the top and the chuck-shaft (9) installed adjacently Connection shafts 11 for interconnection are axially installed, and the spur gears 10 and the connection spur gears 12 which are axially fixed to the lower end of the chuck-shaft 9 and the connection shaft 11 are meshed with each other. ), An angle adjusting lever 13 axially fixed to left and right ends of the chuck-shaft 9, and the angle adjusting lever 1 3 is connected to the pin 16a and the end of the piston rod 16 of the cylinder 15 fixed to the pin 14 in one of the several adjustment holes (17a, 17b, 17c) formed in the body cover 17, The clamp 20 is axially fixed to the chuck-shaft 9 and the clamp 20 for clamping while the clamping recess 19 is radially formed at predetermined intervals and the clamping recess 19 of the divider 20 enters and exits. 21a) clamping means 18 in which the integral piston 21 is slidably installed on the cylinder 22 formed in the body 5, and inside the body 5 to detect the clamping state of the clamping means 18. The sensing switch 24 integrally fixed to the limit switch 23 installed in the piston, the piston 21 connected to the limit switch 23, and the angle adjustment of the chuck 4 are sensed to apply a signal to the control panel. It consists of an angle detecting means 28, the angle detecting means 28 is connected spur shaft fixed to the connecting shaft (11) A limit switch 30 having a plurality of sensing protrusions 29 protruding to a predetermined angle on the 12 and several contacts connected to the sensing protrusions 29 is installed in the middle of the connecting shaft 11. The limit switch 25 is installed in the body 5 to detect whether the tool is damaged, and the slide hole 26 formed in the body 5 to be selectively connected to the limit switch 25. It is characterized in that the sensing piece 27 is provided to be slidable on the surface.

The indexer 1 of the present invention is installed on various machine tools and can continuously machine the workpiece by chucking the workpiece and operating the tool, and the manufacturing cost can be made at a lower cost by using hydraulic pressure as the driving source. And, the chuck 4 itself is adjusted to a predetermined angle, and the body 5, the chuck 4 is installed is also rotated 90 ° has the feature that can process the five sides of the workpiece.

Description

Indexer

1 is a perspective view showing the overall configuration of the indexer provided in the present invention

Figure 2 is a perspective view showing a state in which the indexer body provided in the present invention is rotated

Figure 3 is a cross-sectional configuration of the indexer provided in the present invention

4 is a perspective view of a partially disassembled state in the indexer of the present invention;

Figure 5 is an exploded perspective view of the body portion in the indexer of the present invention

6 and 7 is an exploded perspective view of the constituent members of the cylinder casing for rotating the shaft by 90 ° in the indexer of the present invention,

8 is a perspective view of the indexer of the present invention, the chuck installed on the body and the chuck-shaft and the drive for rotating the body

Figure 9 is an exploded perspective view of the chuck and the chuck-shaft in the indexer of the present invention

Figure 10 is an exploded perspective view of the left connecting shaft portion in the indexer of the present invention

Figure 11 is an exploded perspective view of the right connecting shaft portion in the indexer of the present invention

12 is a cross-sectional view showing the internal configuration of the indexer of the present invention;

Figure 13 is a bottom plan view showing the chuck-shaft driving means appearing on the bottom of the body in the indexer of the present invention;

14 is a front view showing the configuration of the cylinder and the angle control lever of the chuck-shaft drive means installed in the indexer of the present invention;

FIG. 15 is a front view illustrating an operation state when the chuck-shaft is angled by 90 ° according to the cylinder operation in the indexer of the present invention. FIG.

FIG. 16 is a front view illustrating an operation state when the chuck-shaft is angled by 60 ° according to the cylinder operation in the indexer of the present invention. FIG.

FIG. 17 is a front view illustrating an operation state when the chuck-shaft is angled by 30 ° according to cylinder operation in the indexer of the present invention. FIG.

Figure 18 is a side view of the working state of the cylinder casing for the rotation of the body in the indexer of the present invention

■ Explanation of symbols used in main part of drawing ■

1: indexer 2: base panel

3: cylinder casing 4: chuck

5: body 6: cylinder

7: piston rod 7a: cylinder lever

8: shaft 9: chuck-shaft

10: Spur Gears 11: Connecting Shaft

12: Connecting spur gear 13: Angle adjusting lever

14: pin 15: cylinder

16: piston rod 16a: pin

17: Body cover 17a, 17b, 17c: adjusting hole

18: clamping means 19: clamping recess

20: divider 21: piston

21a: clamp 22: cylinder

23: limit switch 24: sensing piece

25: limit switch 26: slide ball

27: detection piece 28: angle detection means

29: sensing protrusion 30: limit switch

The present invention relates to an indexer used by chucking when machining a workpiece using a variety of machine tools, the body installed with several chucks can be rotated 90 °, the chuck is a predetermined set angle (30 ° to 45 ° The angle can be adjusted within the range of the orderer's requirements.The machine can be machined on the five sides of the workpiece, and the driving of the device is carried out by hydraulic pressure. We want to provide an indexer so that we can.

Typically, the oral workpiece to be processed as a machine tool, such as a milling machine, a drilling machine, is fixed by using a jig fixed to a table, and the tool is rotated or moved to process.

In addition, in order to perform a machining operation such as a hole (Hole), counter boring (Counter boring) at a predetermined angle interval on the same circumference of the workpiece, an indexer table for rotating the workpiece at a predetermined angle interval is required.

Such a machining operation is required in the industrial field to process more and more complicated shapes according to the development of the automotive industry, and also in order to reduce the production cost, fast machining time and low production cost are required.

In the conventional vertical milling machine, the tool and the workpiece are generally machined vertically due to tool breakage and life management.However, when the workpiece is inclined at an angle to the horizontal plane, the tool is inclined at a predetermined angle. Bird, dedicated jig

The machined part of the workpiece is machined to be perpendicular to the tool.

In addition, when it is necessary to rotate the workpiece at a specific angle (for example, when rotating at an angle of 5.5 °), when using a partition plate divided into 5 ° or 1 ° increments, when rotation other than the divided angle is required Therefore, it is impossible to rotate, so a method of manufacturing a dedicated jig is used, or a partition plate that is finely divided (0.5 degrees or less) is used.

In particular, in Utility Model No. 76231 and the like, an indexer table that can be controlled at a fixed structure and at a fine angle has been proposed.

However, in the case of a conventional indexer table, a multi-axis control tool for machining a shape inclined at a predetermined angle with a horizontal plane is expensive and frequently interferes with the workpiece due to the rotation of the tool. The workpiece is moved to a dedicated jig and clamped again. If the processing method is used, there is a problem in use that the production cost is high and the processing time is long.

In addition, when the angle division is made finer, the protrusion of the divider may be worn or damaged by the connection port, which may cause damage, and when it is necessary to rotate at an angle other than the divided angle, a new machining operation is required. exist.

On the other hand, domestic registration No. 422146 discloses a technology related to the indexer table, which is a conventional vertical tool even when the workpiece is rotatable at a specific angle and the machining portion of the workpiece is inclined at an angle to the horizontal plane. In the indexer table consisting of a table body connected to the ball screw of the machine tool, a rotary indexer fixed to the upper portion of the table body and a pallet fixed to the upper portion of the rotary indexer to fix the workpiece so as to be processed, two rotations By vertically intersecting the indexer and dividing the partition plate of the rotating indexer, the workpiece can be rotated biaxially, and it can be fixed by dividing it by a certain angle and fixed at a specific angle other than the divided angle. An indexer table that can be rotated and fixed.

The first rotary indexer fixed to the table body connected to the ball screw of the machine tool and the upper rotary indexer and the second rotary indexer fixed to the first rotary indexer perpendicular to the rotation direction of the first rotary indexer An indexer table comprising a pallet fixed to an upper part to fix a workpiece, the rotary indexer comprising: a partition plate having a connecting protrusion having an inequality section and an equal division section formed on a circumferential surface thereof; a driving unit for rotating the partition plate; The partition plate fixing part extending outward is rotated about the rotation axis and connected to or disconnected from the connecting projection of the partition plate, and the partition plate in a direction of releasing the partition plate fixing part of the partition plate connector from the partition plate. The release spring for elastically pressing the spring pressing portion protruding from the connector, and moved up and down According to the present invention, there is disclosed an indexer table comprising a fixed slide for transmitting or releasing a pressing force for connecting the divider fixing portion of the divider connecting port to the connecting projection of the divider.

This pre-registration design provides an indexer table that can be divided into a certain angle, at the same time, and can be divided into a specified angle, and can be rotated in two axes. The workpiece can be rotated and fixed at a desired angle or rotated in two axes. Providing an indexer table that can process a variety of workpieces using conventional milling or drilling tools has had the effect of reducing production time and cost.

However, the above-mentioned prior arts have a lot of difficulties in machining only the four-side machining of the workpiece, and the driving configuration is complicated by the use of electric motors, and the manufacturing cost is high, and the hydraulic pressure is used as the driving source. In case of heavy cutting, there were many problems.

Accordingly, in the present invention, to provide an indexer of a new configuration that can eliminate the problems of the existing indexer as described above,

In particular, the present invention is driven by pneumatic or hydraulic, and is mounted on various machine tools such as milling machines, drilling machines, etc., and is capable of five-sided machining and heavy cutting. The present invention has been completed in view of providing an indexer.

1 is a perspective view showing the entire indexer (1) provided by the present invention, Figure 2 is a perspective view showing a state in which the indexer (1) body 5 of the present invention is rotated 90 °, Figure 3 is a full cross-sectional view of the present invention 4 is a perspective view of a partially disassembled state in the indexer 1 of the present invention, and FIG. 5 is an exploded perspective view of a portion of the body 5 in the indexer 1 of the present invention, FIGS. 6 and 7. Is an exploded perspective view of the constituent members of the cylinder casing (3) for axial installation to the left and right by rotating the body (5), Figure 8 is a chuck (4) installed on the body (5) of the present invention; 9 is an exploded perspective view of the chuck 4 and the chuck shaft 9 of the present invention. FIGS. 10 and 11 are left and right views. 12 is an exploded perspective view illustrating the connection shaft 11, FIG. 12 is a cross-sectional view showing the internal structure of the body 5, and FIG. 13 is a chuck-shaft appearing at the bottom of the body 5. 9) Bottom view showing the drive means, Figure 14 is a front view showing the configuration of the cylinder 15 and the angle control lever 13 of the driving means of the chuck-shaft 9 installed in the body (5), Figure 15 to FIG. 17 is a front view showing the various operating states of the cylinder 15 at various angles, and FIG. 18 is a side view of the working state of the cylinder casing 3 for rotation of the body 5, together with the drawings. This will be described in detail.

In the indexer 1 of the present invention, when the workpiece is chucked to various machine tools, the chuck on which the workpiece is chucked is made at the same time, and the body on which the chuck is installed is 90 °. Rotation can be made so that the five surfaces of the workpiece can be selectively processed, and heavy cutting is possible while using pneumatic or hydraulic pressure (hereinafter referred to as 'hydraulic pressure') as a driving source.

That is, in the indexer 1 of the present invention, the cylinder casings 3 are respectively installed on the left and right sides of the base panel 2, and the body 5 in which the chucks 4 are installed between the left and right cylinder casings 3 is in the forward and reverse directions. It is installed so that the angle can be adjusted by 90 °.

To this end, the cylinder casing (3) is provided with a plurality of cylinders (6), both ends of the body (5) formed integrally with the body (5), the piston rod (7) installed so as to slide up and down on the cylinder (6) Pins are connected to both ends of the cylinder lever 7a fixed to the end of the shaft 8, respectively, and the angle is adjusted in the forward and reverse direction according to the alternating expansion and contraction operation of the piston rod 7 to the hydraulic pressure flowing into the two cylinders 6 alternately. It is installed so that it can be made.

The body 5 is axially mounted on the shaft 8 on the cylinder casing 3, and mounted on various machine tools (not shown) such as a conventional milling machine, a drilling machine, and clamping a work. Several chucks 4 are provided for this purpose (the illustrated example shows a case where three chucks 4 are installed). Five-side machining can be performed when machining the workpiece.

To this end, the chuck 4 is axially fixed to the end of the chuck-shaft 9 in the body 5 so that the angle adjustment can be made.

The spur gear 10 is axially fixed to the lower end of the chuck-shaft 9 so that the spur gear 12 and the chuck-shaft 12 on the coupling shaft 11 are installed between the chuck-shaft 9 adjacent to each other. The spur gear 10 of (9) is geared to each other to be interlocked.

In order to adjust the angle of the chuck-shaft 9 by a predetermined angle, an angle adjusting lever 13 is fixed to the lower end of the chuck-shaft 9, and the angle adjusting lever 13 has three chuck-shafts. It installs only in the left and right ends of (9), and does not install the intermediate chuck-shaft 9.

The angle adjusting lever 13 is connected to the end of the piston rod 16 of the cylinder 15 fixed to the body cover 17 at the bottom of the body 5 by the pin 16a and the cylinder 15. Is rotated by the angle adjustment lever 13 as much as the stroke (stroke) of the piston rod 16 is set when the contraction operation to rotate the chuck-shaft (9).

The rotation angle setting of the chuck-shaft 9 is such that the pin 14 connecting the cylinder 15 to the body cover 17 is connected to one of several adjustment holes 17a, 17b and 17c. By connecting.

In addition, clamping means 18 are installed on the chuck-shaft 9 and the body 5 to clamp the chuck 4 unmovably when the chuck 4 is angled at a predetermined angle.

That is, the clamping means 18 is axially fixed to each chuck-shaft 9 and the partition plate 20 in which the clamping recesses 19 are radially formed at predetermined intervals, and the clamping recesses of the partition plate 20 19. An integrated piston 21 for clamping while entering and exiting the cylinder 21 is slidably installed on the cylinder 22 formed in the body 5 to perform clamping and unclamping operations according to the supply control of the hydraulic pressure. .

On the other hand, in the present invention, the limit switch 23 for detecting the clamping state of the clamping means 18 is installed to the inside of the body (5).

The sensing piece 24 is fixedly installed on the piston 21 installed at one side of the body 5 so that the piston 21 enters at the same time when the piston 21 enters the partition plate 20 and clamps the limit switch 23. Touch) to detect the clamping condition.

And one side of the body (5) front and rear limit switch (25) as a safety means to stop the machine tool when the tool breaks during machining by chucking the workpiece in various machine tools such as milling machine, drilling machine, etc. Install it. Each of the limit switch 25 is provided to slide the sensing piece 27 on the slide hole 26 formed in the body 5 so that the normal operation is performed by touching the limit switch 25 when the tool is normal. The signal is applied so that when the tool is broken, the sensing piece 27 is isolated from the limit switch 25 so that a signal for stopping the machine tool can be transmitted to the control panel (not shown).

In addition, the angle detecting means 28 detects the chuck 4 of the present invention when the angle is adjusted at a predetermined angle by the expansion and contraction of the cylinder 15 and applies an electric signal to the control panel. It is installed on one side of the connecting shaft 11 of the connecting shaft (11).

The angle detecting means 28 may be used in a variety of means, in the case of the present invention by forming a sensing projection 29 to the predetermined angle on the connecting spur gear 12 to the predetermined angle that the chuck 4 has been adjusted. The case of installing the limit switch 30 having several contacts connected to the sensing protrusion 29 at the time is illustrated.

The rotation angle of the chuck 4 can be manufactured by adjusting the rotation angle of the divided plate 20, as well as 45 ° according to the request of the orderer, as well as 45 °, the clamping recess of the partition plate 20 according to the set angle It is natural that the formation interval of (19) is also changed.

In the figure, reference numeral 31 denotes shaft support means such as a bearing for supporting the shaft 8, 32 denotes shaft support means such as a bearing for supporting the chuck-shaft 9, and 33 denotes an installation shaft 11. It shows a fixing bolt for.

The present invention, which can be configured as described above, is used to process various workpieces by mounting them on various machine tools.

The indexer 1 of the present invention rotates the body 5 by 90 ° from the shaft 8 after chucking various workpieces on the chuck 4 or the chuck 4 by the chuck-shaft 9. It is possible to process workpieces quickly and smoothly with a machine tool while adjusting the angle at a predetermined angle (for example, 30 ° equal division as well as 45 ° equal division). ,

First, in the indexer 1 of the present invention, when the workpiece is to adjust the body 5 chucked by the chuck 4 by 90 degrees, the shaft 8 of both ends of the shaft 8 of the body 5 is axially supported and the angle is adjusted. The hydraulic pressure is selectively supplied onto the cylinder (6) in the cylinder casing (3) equipped with a drive means for the purpose.

That is, as shown in FIG. 18, one side of the plurality of cylinders 6 installed inside the cylinder casing 3 installed to the left and right with the body 5 interposed therebetween has a hydraulic pressure above the piston rod 7. When the air pressure is supplied to the lower side of the piston rod 7, respectively, both piston rods 7 are lifted in reverse directions (one side is raised, the other side is lowered), and both ends of the piston rod 7 are pinned. The cylinder lever 7a, which is connected and fixed to the shaft 8, is rotated by 90 °, and when the hydraulic pressure is supplied to each cylinder 6 in the reverse direction, the piston rod 7 is Since the shaft 8 is rotated in the opposite direction to the electric by the cylinder lever (7a) is rotated in the opposite direction to the electric body is to adjust the 90 ° rotation.

When the workpiece chucked to the chuck 4 is to be rotated at various angles on the body 5, the plurality of cylinders 15 installed on the lower body cover 17 of the body 5 are contracted. An angle adjusting lever 13 axially fixed to the piston rod 16 and the chuck-shaft 9 of the cylinder 15 rotates the chuck-shaft 9 at a predetermined predetermined angle while angularly moving.

That is, since the cylinder 15 is connected to one of the adjustment holes (17a, 17b, 17c) of the several adjustment holes (17a, 17b, 17c) formed in the body cover 17 by the pin (14) Since the stroke of the piston rod 16 is determined according to the distance between the 17a, 17b, 17c and the angle adjusting lever 13, the angle adjusting range of the angle adjusting lever 13 connected thereto is determined, and the angle adjusting lever 13 According to the angle adjustment of the chuck 4 is installed chuck-shaft (9) is to rotate at a predetermined angle.

Several chuck-shafts 9 installed inside the body 5 are interlocked by the gear biting operation of the interconnect shaft 11 and the spur gear 10 and the connecting spur gear 12 (3 in the drawing). Dog chuck-shaft (9) can be rotated at a predetermined angle at the same time, and when the chuck-shaft (9) is rotated by a set angle, the limit constituting the angle detecting means (28) installed on the connecting shaft (11) The switch 30 is connected to the corresponding sensing protrusion 29 of the several sensing protrusions 29 formed on the connecting spur gear 12 to convert the mechanical angle adjustment state into an electrical signal and apply it to the control panel. .

When the chuck-shaft 9 is angled to a desired angle, the machining of the workpiece chucked to the chuck 4 is prevented from precision machining and defects when various tools of the machine tool are working. For this purpose clamping means 18 for clamping the chuck-shaft 9 are clamped.

That is, the clamp 21a integrated piston 21 is mounted onto the clamping recesses 19 of the partition plate 20 radially having several clamping recesses 19 axially fixed to the chuck-shaft 9. The clamp 21a enters by the hydraulic pressure supplied to the cylinder 22, thereby clamping the chuck-shaft 9 firmly in a non-flowable state, whereby the heavy cutting operation, which is impossible with hydraulic pressure, is also an indexer of the present invention. (1) can be performed.

In the present invention, the clamping means 18 is clamped a plurality of front and rear of the partition plate 20, so that the flow can be more reliably prevented during the workpiece machining operation.

The presence or absence of clamping of the clamp 21a constituting the clamping means 18 is such that the sensing piece 24 fixed to the piston 21 touches the limit switch 23 when clamping, so that the clamping signal is applied to the control panel. do.

If the tool of the machine tool is broken, the sensing piece 27 slidably installed in the body 5 maintains the state of the switch with the limit switch 25. When the tool is normal, the sensing piece 27 is pushed by the tool and enters the body 5 along the slide hole 26 to touch the limit switch 25 so that the normal operation of the machine tool is stopped. Will be done.

As described in detail above, the indexer 1 provided in the present invention is installed on various machine tools and can continuously process the workpiece by operating the tool after chucking the workpiece. It can be manufactured at a lower cost, provides the advantage of heavy cutting while using hydraulic pressure as the driving source, and the angle so that the chuck 4 can meet the customer's requirements such as the desired angle (30 ° to 45 °). The self-adjustment is made, and the body 5, on which the chuck 4 is installed, is also rotated 90 °, so that the five surfaces of the workpiece can be machined.

Claims (3)

An indexer (1) mounted to various machine tools for chucking a workpiece; The indexer (1) is the shaft (5) is installed by the shaft (8) between the upper and lower cylinder casing (3) installed to the left and right of the base panel (2), and having a plurality of chucks (4), The cylinder casing 3 has a plurality of cylinders 6 formed therein, and end portions of the piston rods 7 slidably mounted up and down on the cylinders 6 include cylinder levers 7a and pins fixed to the shaft 8 ends. Connected, The body 5 is axially provided with a chuck 4 shaft on which the chuck 4 is installed on top and a connecting shaft 11 for interconnecting the adjacent chuck shaft 9. A spur gear 10 and a spur gear 12, which are axially fixed to the lower end of the shaft 9 and the connecting shaft 11, and meshed with each other; The angle adjusting lever 13 is fixed to the left and right ends of the chuck-shaft 9, and the angle adjusting lever 13 has a plurality of adjustment holes (17a, 17b, 17c) formed in the body cover (17) The pin 16a is connected to the end of the piston rod 16 of the cylinder 15 fixed to the pin 14, A partition plate 20 fixed to the chuck-shaft 9 and having a clamping recess 19 radially formed at a predetermined interval; Clamping means 18 in which a clamp 21a integral piston 21 for clamping in and out of the clamping recess 19 of the divider plate 20 is slidably installed on a cylinder 22 formed in the body 5. and, Limit switch 23 installed in the body 5 and the sensing piece 24 integrally fixed on the piston 21 connected to the limit switch 23 to detect the clamping state of the clamping means 18 and, Indexer, characterized in that the angle detecting means 28 is installed to detect the angle adjustment of the chuck (4) to apply a signal to the control panel. The method of claim 1; A limit switch 25 installed inside the body 5 to detect whether a tool is damaged or not; An indexer, characterized in that the sensing piece (27) is slidably mounted on the slide hole (26) formed in the body (5) to be selectively connected to the limit switch (25). The method of claim 1; The angle detecting means 28 includes a plurality of sensing protrusions 29 protruding to a predetermined angle on the connecting spur gear 12 fixed to the connecting shaft 11, Indexer, characterized in that the limit switch 30 having a plurality of contacts in contact with the sensing projection (29) is installed in the middle of the connecting shaft (11).

Images