CN111347268A

CN111347268A - Device for finish machining bearing supporting seat

Info

Publication number: CN111347268A
Application number: CN201811576863.8A
Authority: CN
Inventors: 胡晓桦; 于志国; 王佳伟
Original assignee: Shanghai Guoshang Electromechanical Science & Technology Co ltd
Current assignee: Shanghai Guoshang Electromechanical Science & Technology Co ltd
Priority date: 2018-12-23
Filing date: 2018-12-23
Publication date: 2020-06-30

Abstract

The invention relates to a device for finish machining of a bearing supporting seat, which comprises a bottom plate, a positioning mechanism and a limiting mechanism, wherein the positioning mechanism is arranged on the bottom plate, the limiting mechanism is matched with the positioning mechanism for use, the positioning mechanism is used for positioning in three directions of an X axis, a Y axis and a Z axis, and the limiting mechanism is matched and connected with the positioning mechanism. Compared with the prior art, the invention has the advantages that the fine machining positioning is more accurate, the stability of the tool is higher, the procedures of drilling and milling holes, drilling and tapping, arc milling and the like in the fine machining process are all clamping and processing at one time, and the invention has the advantages of stable size, convenient placement of workpieces, high production efficiency and the like.

Description

Device for finish machining bearing supporting seat

Technical Field

The invention relates to a processing device, in particular to a device for finely processing a bearing support seat.

Background

How to improve the utilization of the numerical control machine tool? Through technical analysis, the use of the clamp is of great concern. According to incomplete statistics, the unreasonable proportion of clamps selected by numerical control machines of domestic enterprises reaches more than 50%. By the end of 2014, the number of the Chinese numerical control machines is nearly one million, that is, more than 50 million numerical control machines have a 'nest work' phenomenon due to unreasonable selection or improper application of the clamp; from another perspective, there is a big paper on the selection and application of numerically controlled machine tool fixtures because of the considerable potential economic benefits involved.

The processing clamping mode that adopts before, though can also accomplish a series of finish machining's process, but the mode that adopts the internal stay from the top down extrudees the outer circular arc of work piece simultaneously, and the clamping dismantlement process is wasted time and energy. And drilling and tapping on the inclined plane are easy to cause the drill bit to crack. The side that uses at present compresses tightly the mode, reduces operator's clamping action, and the clamping time that has significantly reduced adopts the four-axis simultaneously, from drilling tapping on the reverse side one-sided, can not produce cutter wearing and tearing problem.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a device for finishing a bearing support seat.

The purpose of the invention can be realized by the following technical scheme:

a device for finish machining of a bearing supporting seat comprises a bottom plate, a positioning mechanism arranged on the bottom plate and a limiting mechanism matched with the positioning mechanism,

the positioning mechanism is used for positioning in the X-axis direction, the Y-axis direction and the Z-axis direction, and the limiting mechanism is connected with the positioning mechanism in a matched mode.

The positioning mechanism comprises an elastic auxiliary stop block and a positioning column which are arranged on the bottom plate, a center hole of the bearing supporting seat to be processed is tightly matched with the positioning column, and meanwhile, the outer circular arc is attached to the elastic auxiliary stop block and is placed downwards to attach to the bottom plate.

The outer edge part of the elastic auxiliary stop block is in an arc shape, the elastic auxiliary stop block is attached to a bearing support seat to be processed, and the arc distance of the elastic auxiliary stop block is larger than that of the bearing support seat.

The limiting mechanism used in cooperation with the Y-axis direction positioning is a spring locking mechanism arranged on the bottom plate.

The spring locking mechanism is composed of a spring, a bolt, a spring seat and an arc side pressing plate, the spring seat is fixed on the floor, the bolt is sleeved in an inner threaded hole of the spring seat, the front end of the bolt is sleeved with the spring, and the arc side pressing plate is placed in the sliding groove.

The sliding grooves in the bottom plate enable the arc side pressing plates to move along the Y direction, the bolts are screwed down, the arc side pressing plates are driven to compress the workpiece in the Y direction, and the workpiece is limited to rotate along the Z direction.

The limiting mechanism used in cooperation with Z-axis direction positioning is a U-shaped gasket, the U-shaped gasket is screwed into a nut hole in the positioning column through a fastening bolt, and the end cover is pressed downwards.

The diameter of the fastening bolt head is smaller than the center hole of the bearing support seat, and the end cover can be directly taken out upwards after the U-shaped gasket is pulled out.

Four-axis connection pads are connected to the both sides of bottom plate for connect four-axis machining center.

The four-axis connecting disc can drive the device to rotate 180 degrees, and the processes of drilling, hole milling, arc milling and hole drilling and tapping are finished through one-time clamping, so that unnecessary accumulated deviation is reduced, and the hole position and the size are qualified and stable.

Compared with the prior art, the invention has the following advantages:

1. the automatic drilling machine has the advantages of being high in efficiency, low in cost, free of repeated clamping, convenient to use, capable of completing the processes of drilling, hole milling, arc milling, hole drilling and tapping and the like at one time only by rotating the four shafts, and capable of achieving tool changing machining by means of numerical control program positioning.

2. The stability is good, the machining precision is high, after the improvement, the problem of drill bit crack due to inclined plane drilling is eliminated, and simultaneously tapping is carried out, so the drilling machining size stability is good, the tapping is smooth, and the accumulated deviation is reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic cross-sectional view of the present invention;

fig. 4 is a partial structural view of the elastic auxiliary stopper.

In the figure, 1-connecting disc, 2-bottom plate, 3-spring seat, 4-spring, 5-M16 bolt, 6-arc side pressure plate, 7-fastening bolt, 8-U type gasket, 9-elastic auxiliary stop block and 10-positioning column.

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.

Examples

The structure of the device for finish machining of the bearing supporting seat is shown in figures 1-3, and the device comprises a bottom plate 2, a positioning mechanism arranged on the bottom plate 2 and used in the X-axis direction, the Y-axis direction and the Z-axis direction, and a limiting mechanism used in the X-axis direction, the Y-axis direction and the Z-axis direction and matched with the positioning mechanism.

The positioning mechanism in the X-axis direction, the Y-axis direction and the Z-axis direction comprises positioning columns 10 installed on the bottom plate 2, a center hole of a bearing supporting seat to be processed is tightly matched and positioned with the positioning columns 10, an outer circular arc is attached to an elastic auxiliary stop block 9 and is placed downwards to be attached to the bottom plate 2, and the positioning mechanism is shown in fig. 4.

The limiting mechanism used in the Y-axis direction is a spring locking mechanism arranged on the bottom plate 2 and mainly comprises a spring 4, an M16 bolt 5, a spring seat 3 and an arc side pressure plate 6, wherein the spring seat 3 is fixed on the floor, after the M16 bolt is screwed into an internal threaded hole of the spring seat 3, the front end of the M16 bolt 5 is sleeved with the spring 4, and finally the arc side pressure plate 6 is placed in a sliding groove. The sliding groove on the bottom plate 2 can enable the arc side pressing plate 6 to move along the Y direction, and the M16 bolt 5 is screwed down to drive the arc side pressing plate 6 to press the workpiece in the Y direction and limit the workpiece to rotate along the Z direction.

The limiting mechanism used in the Z-axis direction comprises a U-shaped gasket 8 and a fastening bolt 7, wherein the U-shaped gasket 8 is screwed into a nut hole in the positioning column through the fastening bolt 7, and presses a workpiece downwards to limit the Z-axis movement of the workpiece. The diameter of the fastening bolt 7 is smaller than the center hole of the workpiece, and after the U-shaped gasket 8 is pulled out, the workpiece can be directly taken out upwards without screwing out the fastening bolt 7.

Be equipped with the through-hole that is used for the drilling tapping at bottom plate 2, after the tight work piece of location clamp, utilize the rotatory frock of four-axis 180, the drilling tap is through-hole drilling tapping. Be connected with connection pad 1 in the both sides of bottom plate 2 for connect four-axis machining center, but parallel arrangement multiunit positioning mechanism and stop gear on bottom plate 2, thereby can process a plurality ofly simultaneously, be provided with two sets ofly in this embodiment, can process two work pieces simultaneously.

The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.

Claims

1. A device for finish machining of a bearing supporting seat is characterized by comprising a bottom plate, a positioning mechanism arranged on the bottom plate and a limiting mechanism matched with the positioning mechanism,

2. The apparatus of claim 1, wherein the positioning mechanism comprises an elastic auxiliary stop and a positioning post mounted on the bottom plate, the central hole of the bearing support to be machined is tightly fitted with the positioning post, and the outer circular arc is fitted with the elastic auxiliary stop and is placed downward to fit the bottom plate.

3. A device for finishing a bearing support according to claim 1, wherein the outer edge portion of the resilient auxiliary stop is formed in a circular arc shape to fit the bearing support to be finished, and the circular arc interval is larger than the circular arc interval between the bearing supports.

4. A device for finishing a bearing support according to claim 1, wherein the limiting means for positioning in the Y-axis direction is a spring locking means provided on the base plate.

5. A device for finishing a bearing support according to claim 4, wherein the spring locking mechanism comprises a spring, a bolt, a spring seat, and a circular arc side pressing plate, the spring seat is fixed on the floor, the bolt is inserted into the threaded hole in the spring seat, the front end of the bolt is inserted into the spring, and the circular arc side pressing plate is placed in the sliding groove.

6. The apparatus of claim 5, wherein the slide grooves of the bottom plate allow the arc side pressing plates to move in the Y direction, and tightening the bolts causes the arc side pressing plates to press the workpiece in the Y direction and restrict the rotation in the Z direction.

7. The apparatus of claim 1, wherein the stop mechanism used in conjunction with the Z-axis positioning is a U-shaped washer that is screwed into a nut hole in the positioning post via a fastening bolt to press the end cap downward.

8. A device for finishing a bearing support according to claim 7, wherein the head of the fastening bolt is smaller in diameter than the central bore of the bearing support, and the end cap can be removed directly upwards after the U-shaped shim is removed.

9. A device for finishing a bearing support according to claim 1, wherein the bottom plate is connected at both sides thereof with four-axis connecting plates for connecting with a four-axis machining center.

10. The apparatus of claim 9, wherein the four-axis connecting disc drives the apparatus to rotate 180 °, and the operations of drilling, milling, arc milling, drilling and tapping are performed by one-time clamping.