CN111347268A - A device for finishing bearing support seat - Google Patents

Abstract

The invention relates to a device for finishing a bearing support seat, comprising a base plate, a positioning mechanism mounted on the base plate, and a limit mechanism used in cooperation with the positioning mechanism. Positioning, the limiting mechanism is matched and connected with the positioning mechanism. Compared with the prior art, the present invention makes the positioning of finishing more accurate, the stability of the tooling is higher, and the drilling and milling, drilling and tapping, arc milling and other processes in the finishing process are all clamped at one time. It has the advantages of stable size, convenient workpiece placement and high production efficiency.

Description

A device for finishing bearing support seat

technical field

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

Background technique

How to improve the utilization rate of CNC machine tools? Through technical analysis, the use of fixtures has a lot to do with it. According to incomplete statistics, the proportion of unreasonable fixtures used in CNC machine tools in domestic enterprises is as high as 50%. By the end of 2014, the number of CNC machine tools in China was nearly 1 million, that is to say, there were more than 500,000 CNC machine tools due to unreasonable selection of fixtures or improper application, and the phenomenon of "women" appeared; from another perspective , There is a lot to do in the selection and application of CNC machine tool fixtures, because it contains considerable potential economic benefits.

The processing and clamping method used before can also complete a series of finishing processes, but the inner support method is used to squeeze the outer arc of the workpiece from top to bottom at the same time, and the clamping and disassembly process is time-consuming and laborious. In addition, drilling and tapping on the inclined surface can easily lead to the cracking of the drill bit. The side pressing method currently used reduces the operator's clamping action and greatly reduces the clamping time. At the same time, four axes are used to drill and tap from the reverse side, which will not cause tool wear problems.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a device for finishing the bearing support seat in order to overcome the above-mentioned defects of the prior art.

The object of the present invention can be realized through the following technical solutions:

A device for finishing a bearing support seat, comprising a base plate, a positioning mechanism mounted on the base plate, and a limit mechanism used in cooperation with the positioning mechanism,

The positioning mechanism performs positioning in three directions of the X axis, the Y axis and the Z axis, and the limiting mechanism is matched and connected with the positioning mechanism.

The positioning mechanism includes an elastic auxiliary block and a positioning column installed on the base plate. The center hole of the bearing support seat to be processed is tightly fitted with the positioning column, and the outer arc is placed downwards against the elastic auxiliary stop to fit the base plate. .

The outer edge portion of the elastic auxiliary stop is in the shape of an arc, which fits the bearing support seat to be processed, and the arc spacing is larger than the arc spacing between the bearing support seats.

The limit mechanism used for positioning in the Y-axis direction 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 a circular arc side pressure plate. The spring seat is fixed on the floor, the bolt is inserted into the inner threaded hole of the spring seat, and the front end of the bolt is inserted into the spring. Put the arc side pressure plate in the middle.

The chute on the bottom plate allows the arc side pressure plate to move along the Y direction, and the bolts are tightened to drive the arc side pressure plate to press the workpiece in the Y direction and restrict its rotation along the Z direction.

The limit mechanism used for positioning in the Z-axis direction is a U-shaped gasket, which is screwed into the nut hole in the positioning column through the fastening bolt, and the end cover is pressed down.

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

The two sides of the bottom plate are connected with four-axis connecting disks, which are used for connecting the four-axis machining center.

The four-axis connecting plate can drive the device to rotate 180°, complete drilling, hole milling, arc milling, drilling and tapping processes in one clamping, reduce unnecessary cumulative deviation, and make the hole position and size qualified and stable.

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

1. High efficiency, low cost, no need for repeated clamping, convenient and efficient, only need to rotate the four axes, you can complete drilling, hole milling, arc milling, drilling and tapping and other processes at one time, and use the CNC program to position and change. The knife can be processed.

2. Good stability and high machining accuracy. After the improvement, the problem of drill bit cracking due to inclined drilling is eliminated, and tapping is performed at the same time, so the dimensional stability of drilling processing is good, the tapping is smooth, and the accumulated deviation is reduced.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the top view structure schematic diagram of the present invention;

Fig. 3 is the sectional structure schematic diagram of the present invention;

FIG. 4 is a schematic diagram of the partial structure of the elastic auxiliary stop.

In the figure, 1-connecting plate, 2-base plate, 3-spring seat, 4-spring, 5-M16 bolt, 6-arc side pressure plate, 7-fastening bolt, 8-U-shaped gasket, 9-elastic auxiliary Stop, 10-positioning post.

Detailed ways

The present invention will be described in detail below with reference to specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

Example

A device for finishing a bearing support seat, the structure of which is shown in Figures 1-3, including a base plate 2 and a base plate 2 installed on the base plate 2 for the positioning mechanism and the positioning mechanism in the directions of the X axis, the Y axis and the Z axis Used in conjunction with the limit mechanism in the X-axis, Y-axis and Z-axis directions.

The positioning mechanism in the X-axis, Y-axis, and Z-axis directions includes a positioning column 10 installed on the base plate 2. The center hole of the bearing support seat to be processed is tightly fitted with the positioning column 10 for positioning, and the outer arc fits the elastic auxiliary stopper. 9. Place it down and fit the bottom plate 2, as shown in Figure 4.

The limit mechanism used in the Y-axis direction is a spring locking mechanism arranged on the bottom plate 2, which is mainly composed of spring 4, M16 bolt 5, spring seat 3, and arc side pressure plate 6, which fixes the spring seat 3 on the floor. , after screwing the M16 bolts into the inner threaded holes of the spring seat 3, the front end of the M16 bolts 5 is inserted into the spring 4, and finally the arc side pressure plate 6 is placed in the chute. The chute on the bottom plate 2 allows the arc side pressure plate 6 to move along the Y direction, and tighten the M16 bolt 5 to drive the arc side pressure plate 6 to press the workpiece in the Y direction and restrict its rotation along the Z direction.

The limit mechanism used in the Z-axis direction includes a U-shaped washer 8 and a fastening bolt 7. The U-shaped washer 8 is screwed into the nut hole in the positioning column through the fastening bolt 7, and the workpiece is pressed down to limit its Z. axis moves. The diameter of the fastening bolt 7 is smaller than the central hole of the workpiece. After the U-shaped washer 8 is pulled out, the workpiece can be taken out directly without unscrewing the fastening bolt 7 .

The bottom plate 2 is provided with a through hole for drilling and tapping. After positioning and clamping the workpiece, the four-axis rotation tool is used for 180°, and the drill tap is drilled and tapped through the through hole. Connecting discs 1 are connected on both sides of the base plate 2 for connecting the four-axis machining center, and multiple sets of positioning mechanisms and limit mechanisms can be arranged in parallel on the base plate 2, so that multiple sets can be processed at the same time. Two groups, capable of processing two workpieces at the same time.

The foregoing description of the embodiments is provided to facilitate understanding and use of the invention by those of ordinary skill in the art. It will be apparent to those skilled in the art that various modifications to these embodiments can be readily made, and the generic principles described herein can be applied to other embodiments without inventive step. Therefore, the present invention is not limited to the above-mentioned embodiments, and improvements and modifications made by those skilled in the art according to the disclosure of the present invention without departing from the scope of the present invention should all fall within the protection scope of the present invention.

Claims (10)

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,

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.

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.

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