KR200232147Y1 - construction grinding machine - Google Patents

Abstract

The present invention relates to a workpiece grinder capable of automatically processing the hole of the movable gear for the tilting device for adjusting the height of the steering wheel of the vehicle.

The present invention has a base portion having an enclosure form; A tool driving unit provided with a plurality of fixing tools provided on the circumference of the table to the inner center of the base to sequentially rotate and stop the position sensors by position sensors; A tool operating portion provided so that the cutting portion having a tool having a different cutting force fixed to the chuck of the spindle rotated by the motor moves up and down selectively by the moving means; A cutting oil supply unit configured to reduce frictional heat generated during cutting; It consists of a control unit for operating the tool drive unit and the tool operating unit according to the set range to produce a large amount of movable gear in a limited working time.

Description

Workpiece grinding machine

The present invention relates to a workpiece grinder, the hole of the movable gear for adjusting the inclination of the steering wheel of the vehicle by using a tool operating unit having a hole-processing tool and a polishing tool in a state of sequentially rotating a table having a plurality of tools on the edge It can be processed automatically to mass production.

In general, a steering device of a vehicle is provided with a tilting device so that the angle of the steering wheel can be tilted up and down according to the driver's physical condition or driving posture.

The operating principle of the tilting device is that the gear mount is integrally provided on the bracket provided to be able to rotate up and down about the roller supported on the handle shaft, and the lever is applied to the operating gear and the roller to rotate and stop the bracket to an arbitrary position. It consists of a combined nut, so when the lever is pulled, the bracket can be moved up and down along the operating gear to adjust the angle of the handle.

The movable gear, one of the gears used for the tilting device, has a movable gear body having a sector gear at a predetermined distance from the shaft hole and the center of the shaft hole, and a position protruding in the axial direction of the sector gear close to the sector gear. Consists of dragon protrusions.

The moveable gear is a method for increasing the precision of the shaft hole is finished by two times by using a drill to close the shaft hole to a certain dimension and then finish grinding the inner surface of the cut shaft hole using a reamer precisely.

However, in order to process the shaft gear of the movable gear, a lot of working time is required in the process of working by the worker step by step, and thus there is a problem in that the yield decreases. In addition, due to this cause, the unit cost of the component was increased.

The present invention was devised to solve such a problem, and the movable gear fixing tool installed at the edge of the table was installed to have an interval of about 90 ° and the table was rotated sequentially while the movable gear was inserted into the fixing tool. It is an object of the present invention to provide a workpiece grinder capable of producing a large amount of movable gears by operating a tool operating part so that a subsequent cutting process can be continuously performed.

The present invention for achieving the above object is a base portion having an enclosure form; A tool driving unit provided with a plurality of fixing tools provided on the circumference of the table to the inner center of the base to sequentially rotate and stop the position sensors by position sensors; A tool operating portion provided so that the cutting portion having a tool having a different cutting force fixed to the chuck of the spindle rotated by the motor moves up and down selectively by the moving means; A cutting oil supply unit for reducing frictional heat generated during cutting; It is achieved to provide a workpiece grinder comprising a control unit for controlling the tool drive unit and the tool operating unit according to a set range.

1 is a perspective view of a workpiece polishing machine according to the present invention.

Figure 2 is a perspective view of the tool operating unit installed in the workpiece grinder according to the present invention.

Figure 3 is a perspective view of the tool drive installed in the workpiece grinder according to the present invention.

Figure 4 is a plan view of the tool drive unit according to the present invention.

Figure 5 is an enlarged illustration of the tool according to the present invention.

Figure 6 is an exemplary view showing a sequence in which the shaft hole is processed in the movable gear using a workpiece grinder according to the present invention.

<Brief description of symbols for the main parts of the drawings>

2: Base portion 4: Tool tool drive portion

5: Cutting part 6: Tool operating part

7: Cutting oil supply unit 8: Control unit

9: position sensor 10: table

11: Fixture tool 35: motor

36: spindle 37: chuck

38: Tool

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

The workpiece grinder 1 according to the present invention has a base part 2 provided in the form of a housing having a space therein, and a movable gear 3 at the edge of the base part 2 as shown in FIG. 1. Tool drive unit having a tool drive unit 4 installed so as to rotate and stop in a state where it is inserted and fixed, and a cutting unit 5 provided at a position where the movable gear 3 inserted into the tool drive unit 4 is stopped. (6) and a cutting oil supply unit (7) for supplying cutting oil to reduce the frictional force generated during the cutting process to reduce processing errors due to thermal deformation, the tool drive unit (4), the tool operating unit (6) and the cutting oil supply unit (7) ) Is configured to control the control unit 8 to operate within the set range.

Here, the base part 2 is provided to prevent chips and cutting oil, etc., generated during the cutting process from being splashed into the workplace, and to install the tool driving part 4 and the tool operating part 6, and are provided to the outside. The cutting oil supply part 7 and the control part 8 are provided.

The tool drive unit 4 includes a table 10 and a table provided such that a conventional power transmission device having a deceleration unit connected to a motor (not shown) connected to the control unit 8 is selectively rotated by the position sensor 9. It consists of a plurality of fixing tool (11) provided around the circumferential surface of (10).

Here, the fixing tool (11) is provided according to the number of cutting process including the operator easily inserts the movable gear (3), it is preferable to use four in the present invention.

As shown in FIGS. 3 and 5, the fixing tool 11 includes a support member 12 installed on the bottom surface of the table 10 to protrude to a predetermined length, and a first screw on the upper surface of the support member 12. Tool main member 14 fixed with (13), tool sub member 16 fixed with second screw 15 on upper surface of tool main member 14, tool main, sub member 14, 16 A gap preventing portion 17 to prevent the movable gear 3 inserted therebetween from moving or changing its position during operation, and a gap holding portion 18 for adjusting the pressing force of the movable gear 3 and the movable gear 3. ) Is composed of a positioning bolt (19) for bringing the tip end portion to a predetermined position.

Here, the support member 12 is provided so that the fixed shaft 12a having a predetermined height protrudes on one side. It is in the form, but the present invention can be used to vary depending on the number of fixtures for fixing without limiting this. In other words, when the number of steps is four or more, it can be used to have a pentagon or hexagon shape accordingly.

The tool main member 14 is provided such that a space 20 having a predetermined width is provided at the center of the free end side in order to easily insert the movable gear 3 at the same time while smoothly passing the cutting oil supplied during the cutting process. have.

In addition, the separation prevention protrusion 21 having a predetermined length at the inner lower end of the space portion 20 is provided in the longitudinal direction so that the movable gear 3 inserted into the space portion 20 falls to the base portion 2. The free end of the anti-separation protrusion 21 is provided in a curved shape to seat the round portion of the movable gear 3 to prevent the movable gear 3 from moving in the direction of the conical surface of the table 10. .

The tool sub member 16 is fixed to the movable gear 3 fixed for cutting as described above, as the second screw 15 is fixed to both sides of the upper surface of the tool main member 14 having a predetermined space. In order to prevent the movable gear 3 from being separated from the upper part in the process of being inserted and then pulled out, the projection 22 for preventing the release is provided at both ends of the upper surface.

The flow preventing part 17 is a rotating rod 24 fixed to the hinge bolt 23 to one side of the upper surface of the tool sub member 16, and a spring 25 for providing an elastic force (pushing force) to the rotating rod 24. It is composed of

Here, one end of the rotation rod 24 is formed with a hole 26 for engaging the spring 25, the other end is provided with a pressing member 27 using a screw or the like integrally threadless gear formed It is supposed to press the side of.

In addition, the other end of the spring 25 is connected to the fixed shaft 12a so as to always compress the pressing member 27.

The spacing holding unit 18 is composed of a bracket 29 fixed to one side of the main tool member 14 by a fixing screw 28 and a variable screw 30 screwed into the bracket 29.

The positioning bolt 19 is provided at the protruding free end of the tool sub member 16.

Meanwhile, the cutting oil supply unit 7 uses a conventional method in which the cutting oil passing through the cutting process is continuously circulated, and the control unit 8 controls the control 31, the main switch unit 32, and the sub switch unit 33. It is composed.

The tool operating part 6 is an actuator body 34 and a tool 38 fixed to the chuck 37 of the spindle 36 which is rotated by the motor 35 on the upper end of the actuator body 34 and moves. By the means 39, the cutting part 5 is provided to move up and down.

Here, the moving means 39 is preferably to use a cylinder and a piston using hydraulic or pneumatic.

The operation of the present invention configured as described above is as follows.

First, when the rotating rod 24 of the flow preventing part 17 provided in the fixing tool 11 is turned counterclockwise, the rotating rod 24 is pivoted about the hinge bolt 23 to be connected to the other end of the spring ( As the number 25 increases, the inlet of the space portion 20 provided between the main tool 14 and the sub tool member 16 becomes wider.

In this state, the gear mountain of the movable gear 3 is formed by hand, and the other end thereof is inserted into the space 20. At this time, the movable gear 3 to be inserted is prevented from being separated into the upper and lower portions by the separation preventing protrusion 21 provided in the tool sub member 16 and the tool main member 14, and at the free end of the curved type associated with it. This prevents the movable gear 3 from moving in the circumferential direction of the table 10.

Then, when the hand is released from the rotation rod 24, one side of the movable gear 3 is fitted with the pressure member 27 provided at the free end while the rotation rod 24 rotates clockwise with the elastic force of the spring 25. Keep in touch until it touches.

Next, when the main switch unit 32 and the sub-switch unit 33 of the control unit 8 are operated, a power transmission device composed of a motor and a deceleration unit, not shown, connected to the control unit 8 is driven to provide the upper portion. The table 10 rotates in a clockwise direction, and stops at a predetermined position (rotated by 90 °) by the position sensor 9.

And by means of moving means provided with cylinders and pistons while the tool 38 connected to the chuck 37 having the spindle 36 rotated by the motor 35 provided on the actuating body 34 rotates at high speed. As the spindle 36 moves downward, the hole of the movable gear is first processed.

Next, the cutting oil is supplied to the machining portion through which the cutting oil is cut through the cutting oil supply part 7 to prevent an error due to thermal deformation. After going through this process twice, come back to the initial position where the movable gear is inserted, and then reverse the operation when inserting the movable gear, remove the completed movable gear and insert the new movable gear to allow continuous machining. It will be able to produce in large quantities.

As described above, the present invention inserts a movable gear to be machined into a table having a plurality of tools and sequentially rotates the hole of the movable gear using a tool operation unit having a hole processing tool and a polishing tool. By automatically processing, it is possible to produce a large quantity while reducing the labor force of the worker within a limited time.

Claims (3)

A base part 2 having an enclosure shape; A tool drive unit 4 provided with a plurality of fixing tools 11 provided at the circumference of the table 10 in the inner center of the base unit 2 so that rotation and stopping are sequentially operated by the position sensor 9. Wow; Tool operating part 6 provided so that the cutting part 5 which has the tool 38 which differs in the cutting force fixed to the chuck 37 of the spindle 36 rotated by the motor 35 moves up and down selectively by a moving means. Wow; A cutting oil supply unit 7 for reducing frictional heat generated during the cutting process; Workpiece grinding machine, characterized in that consisting of a control unit (8) for controlling the tool drive unit (4) and the tool operating unit (6) to operate according to a set range. According to claim 1, The fixing tool 11 has a fixed shaft (12a) on one side of the protruding both ends to the edge of the table 10 Support member 12 of the form; A tool main member 14 having both sides fixed with a first screw 13 so as to have a space portion 20 at the center of the supporting member 12 at a free end side; A plurality of tool sub-members 16 fixed to the upper surface of the tool main member 14 by a second screw 15; Pressing member (27) provided at the free end by the elastic force of the spring (25) connected to the fixed shaft (12a) is a pressing type rotating rod (24) fixed to the hinge bolt (23) to one side of the upper surface of the tool sub member (16) A flow preventing part (17) for pressing and fixing the movable gear (3) inserted between the main and sub members (14, 16); Spacing holding part having a variable screw 30 fixed to one side of the main tool member 14, the fixing screw 30 to adjust the distance between the pressing member 27 and the movable gear 3 provided on the free end ( 18); And a positioning bolt (19) provided at the protruding free end of the tool sub member (16). According to claim 2, wherein the tool sub-member 16 and the tool main member 14 is provided with a separation prevention projection 21 having a predetermined length in the upper and lower ends of the space portion 20 is provided in the longitudinal direction is inserted Workpiece grinder, characterized in that the movable gear (3) is provided to prevent the moving up and down.