A processing device for drilling multiple holes in a bearing seat of a machining center

Abstract

The present invention relates to a processing device for drilling multiple holes in a bearing seat of a machining center, comprising: a tooling base plate (3), a tailstock connection plate (1) and a four-axis connection plate (2) connected to both ends of the tooling base plate (3), a wedge-shaped positioning block (5) and a positioning cylindrical bolt (6) arranged on the upper surface of the tooling base plate (3) to clamp the processed bearing seat part (4), and a side pressure plate (8) arranged on the side of the tooling base plate (3) and fixed to the tooling base plate (3) by a clamping bolt (9) to clamp the processed bearing seat part (4). Compared with the prior art, the present invention makes the positioning of the fine machining more accurate, the stability of the tooling is higher, and has the advantages of stable size, convenient placement of workpieces, and high production efficiency.

Description

Technical Field

[0001] The invention relates to a processing device, in particular to a processing device used for drilling multiple holes in a bearing seat of a processing center. Background Art

[0002] How to improve the utilization rate of CNC machine tools? Through technical analysis, the use of fixtures has a great relationship. According to incomplete statistics, the proportion of unreasonable fixtures selected by domestic enterprises for CNC machine tools is as high as more than 50%. By the end of 2014, China's CNC machine tool inventory was nearly one million, which means that more than 500,000 CNC machine tools have experienced "idle work" due to unreasonable fixture selection or improper application; from another perspective, there is a lot to be done in the selection and application of CNC machine tool fixtures, because it contains considerable potential economic benefits.

[0003] The previous processing and clamping method can complete the process of clamping and punching in one go, but it has great limitations and cannot punch various holes such as threaded holes, positioning pin holes, nameplate holes, etc. In addition, it is far less stable than the processing of the machining center in terms of dimensional control. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide a processing device for drilling multiple holes in a bearing seat of a machining center, thereby solving the technical problems of insufficient processing accuracy and stability in the prior art.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A processing device for drilling multiple holes in a bearing seat of a machining center, comprising:

[0007] Tooling base plate,

[0008] The main shaft connection plate and the four-axis connection plate connected to both ends of the tooling base plate,

[0009] The wedge-shaped positioning block and the positioning cylindrical bolts set on the upper surface of the tooling bottom plate clamp the bearing seat parts being processed.

[0010] The side pressure plate arranged on the side of the tooling bottom plate is fixed to the tooling bottom plate by clamping bolts to clamp the processed bearing seat parts to prevent them from vibrating and deflecting.

[0011] The wedge-shaped positioning block is both a positioning element and a limiting element, and is the core component of the entire processing device. The side of the wedge-shaped positioning block facing the processed bearing seat part is a wedge-shaped inclined surface. The wedge-shaped positioning block can also be replaced according to the size of the processed bearing seat part to adjust the inclination angle of the wedge-shaped inclined surface.

[0012] The wedge-shaped positioning block used can slide within a certain range on the tooling base plate. With its own inclined angle design, it is used to adapt to bearing seat parts with different opening sizes. It is used to support the opening to prevent the workpiece from rotating in the plane formed by the X-axis and Y-axis during processing, which affects the actual processing of the product.

[0013] A through hole is provided in the middle of the wedge-shaped positioning block, a telescopic bolt with a spring sleeve is arranged in the through hole, the top end of the telescopic bolt is mounted on a limit stopper, and the limit stopper is arranged between the wedge-shaped positioning block and the processed bearing seat part.

[0014] The limit stopper abuts against the bearing seat part being processed through the telescopic bolt. The wedge-shaped positioning block can be moved horizontally in a small range on the tooling bottom plate by tightening and loosening the bolt. When the operator installs the bearing seat workpiece, the operator can drive the wedge-shaped positioning block to press the workpiece by tightening the bolt.

[0015] The two ends of the positioning cylindrical bolt are threaded, and the middle is a cylindrical shaft section.

[0016] The positioning cylindrical bolt is connected to the tooling bottom plate through the thread at the lower end, the processed bearing seat part is sleeved on the cylindrical shaft section, and the thread at the upper end of the positioning cylindrical bolt is connected and fixed to the position of the processed bearing seat part through a nut.

[0017] The tailstock connection plate and the four-axis connection plate are provided with a slot on one side facing the tooling base plate, and the tooling base plate is inserted into the slot. The other side of the tailstock connection plate and the four-axis connection plate are connected to the tailstock and the four-axis by bolts, and the tooling base plate can realize free rotation processing on the machining center.

[0018] Compared with the prior art, the technical solution disclosed in the present invention has the following advantages:

[0019] 1. High efficiency, low cost, no need for repeated clamping, convenient and efficient, only need to rotate four axes to complete drilling, milling, arc milling, drilling and tapping and other processes at one time, and use CNC program to locate tool change processing.

[0020] 2. Good stability and high processing precision. After improvement, the problem of drill bit breakage caused by inclined drilling is eliminated. At the same time, tapping is performed, so the drilling size stability is good, tapping is smooth, and the cumulative deviation is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention in the embodiment;

[0022] Figure 2 It is a schematic diagram of the main structure of the present invention in the embodiment;

[0023] Figure 3Schematic diagram of the top view of the structure of the present invention in an embodiment.

[0024] In the figure, 1-tailstock connecting plate, 2-four-axis connecting plate, 3-tooling base plate, 4-processed bearing seat parts, 5-wedge-shaped positioning block, 6-positioning cylindrical bolt, 7-M12 nut, 8-side pressure plate, 9-tensioning bolt, 10-spring, 11-telescopic bolt, 12-limit block, 13-locking bolt. DETAILED DESCRIPTION

[0025] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several variations and improvements may be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0026] Example

[0027] A processing device for drilling multiple holes in a bearing seat of a machining center, the structure of which is as follows Figure 1-3 As shown, the bearing seat part 4 to be processed can be positioned in the three directions of X-axis, Y-axis and Z-axis, thereby improving the processing accuracy and stability. The device includes a tooling base plate 3, a spindle connection plate 1 and a four-axis connection plate 2 connected to both ends of the tooling base plate 3, a wedge-shaped positioning block 5 and a positioning cylindrical bolt 6 arranged on the upper surface of the tooling base plate 3 to clamp the bearing seat part 4 to be processed, and a side pressure plate 8 arranged on the side of the tooling base plate 3, which is fixed on the tooling base plate 3 through a clamping bolt 9 to clamp the bearing seat part 4 to be processed.

[0028] The wedge-shaped positioning block 5 used is not only a positioning element but also plays a limiting role. It is the core component of the entire processing device. The wedge-shaped positioning block 5 can slide within a certain range on the tooling base plate 3. The side facing the processed bearing seat part 4 is a wedge-shaped inclined surface. With the design of its own inclined surface angle, it is used to adapt to bearing seat parts of different opening sizes, and is used to support the opening to prevent the workpiece from rotating in the plane formed by the X-axis and Y-axis during processing, which affects the actual processing of the product. (The product is loose, and the positions of the two holes are crooked) In addition, the wedge-shaped positioning block 5 can also be replaced according to the size of the processed bearing seat part 4, and the angle of the inclination angle of the wedge-shaped inclined surface can be adjusted.

[0029] The two ends of the positioning cylindrical bolt 6 are threaded and connected to the tooling base plate 3 through the threads at the bottom end. The middle is a cylindrical shaft section. When the bearing seat part hole is installed, it is inserted into the positioning cylindrical bolt 6, and then the M12 nut 7 is inserted into the thread at the upper end for locking.

[0030] The side pressure plate 8 and the clamping bolt 9 are used in conjunction with each other. A threaded hole is opened on the tooling base plate 3. The clamping bolt 9 is screwed into the threaded hole to clamp the side pressure plate 8 to clamp the workpiece to prevent it from vibrating and deflecting.

[0031] The spring 10, telescopic bolt 11 and limit block 12 are used together. The spring is inserted into the telescopic bolt and passed through the wedge-shaped positioning block. The bolt is tightened on the limit block. By tightening and loosening the bolt, the wedge-shaped positioning block can move horizontally in a small range on the tooling bottom plate. When the operator installs the bearing seat workpiece, he can tighten the bolt to drive the wedge-shaped positioning block to tighten the workpiece. (The workpiece can be moved inside and outside to check whether it is tight)

[0032] The tailstock connection plate 1 and the four-axis connection plate 2 are provided with a slot on one side facing the tooling base plate 3, and the tooling base plate 3 is inserted into the slot. The other side of the tailstock connection plate 1 and the four-axis connection plate 2 is connected to the main shaft and the four-axis by bolts. The tooling base plate 3 connected in this way can realize free rotation processing on the machining center.

[0033] The bearing seat part 4 to be processed involves various hole processing, such as multiple through holes, four threaded holes, four pin holes (two different), nameplate holes, etc., so it is most appropriate to process them on a machining center. The machining center can process all the above holes at one time, and can also drill two countersunk holes on the back through four-axis rotation (pre-drilled holes on the back of the tooling bottom plate, so that countersunk holes can be drilled when the tooling is rotated).

[0034] When designing the tooling, our company envisioned that the two ear holes would also be processed on this processing device. The four axes were rotated 90 degrees forward and backward respectively to complete the two ear holes. The ear holes are directly processed. In the early stage of design, the diameter of the ear holes is large, which requires a high load on the machine tool. Therefore, the process route is to drill the bottom hole on the drilling machine first and then bore it on the machining center. In the process of sample processing, by adjusting the processing parameters (slowing down the speed when drilling the ear holes), it can meet the requirements of smooth processing without exceeding the specified load. Therefore, in the subsequent processing process, our company merged the processes, saving labor costs and equipment costs, and the freed-up machine tools can be used to process other products.

[0035] The positioning cylindrical bolt 6 and the wedge-shaped positioning block 5 are two important positioning elements of this processing device. The positioning cylindrical bolt roughly positions the workpiece, and the wedge-shaped positioning block 5 completely positions the workpiece (this positioning element is due to the symmetry requirement of the two ear holes, so the workpiece is automatically aligned to meet the shape and position tolerance requirement of symmetry 2). After positioning, the side pressure plate and the shoulder nut M12 (better strength) completely press the workpiece to achieve four-axis rotation processing!

[0036] In the description of the present invention, it should be understood that terms such as "upper surface", "two ends" and "side" indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0038] The above description of the embodiments is to facilitate the understanding and use of the invention by those skilled in the art. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the scope of protection of the present invention.

Claims

1. A processing device for drilling multiple holes in a bearing seat of a machining center, characterized in that: The processing device comprises: Tooling base plate (3), The tailstock connection plate (1) and the four-axis connection plate (2) are connected to the two ends of the tooling base plate (3). The wedge-shaped positioning block (5) and the positioning cylindrical bolt (6) are arranged on the upper surface of the tooling base plate (3), and the bearing seat part (4) to be processed. A side pressure plate (8) is arranged on the side of the tooling base plate (3) and is fixed to the tooling base plate (3) via a clamping bolt (9) to clamp the processed bearing seat part (4); The side of the wedge-shaped positioning block (5) facing the bearing seat part (4) to be processed is a wedge-shaped inclined surface; A through hole is provided in the middle of the wedge-shaped positioning block (5), a telescopic bolt (11) sleeved with a spring (10) is provided in the through hole, the top end of the telescopic bolt (11) is mounted on a limit stopper (12), and the limit stopper (12) is arranged between the wedge-shaped positioning block (5) and the bearing seat part (4) to be processed; The limit stopper (12) abuts against the bearing seat part (4) being processed through the action of the telescopic bolt (11); The wedge-shaped positioning block (5) is capable of sliding axially on the tooling base plate (3).

2. A processing device for drilling multiple holes in a bearing seat of a machining center according to claim 1, characterized in that: The wedge-shaped positioning block (5) can also be replaced according to the size of the bearing seat part (4) being processed.

3. The processing device for drilling multiple holes in a bearing seat of a machining center according to claim 1, characterized in that: The two ends of the positioning cylindrical bolt (6) are threaded, and the middle is a cylindrical shaft section used for hole positioning.

4. A processing device for drilling multiple holes in a bearing seat of a machining center according to claim 3, characterized in that: The positioning cylindrical bolt (6) is connected to the tooling base plate (3) via a thread at the lower end, the processed bearing seat part (4) is sleeved on the cylindrical shaft section, and the thread at the upper end of the positioning cylindrical bolt (6) is connected to fix the position of the processed bearing seat part (4) via a nut.

5. The processing device for drilling multiple holes in a bearing seat of a machining center according to claim 1, characterized in that: The tailstock connection plate (1) and the four-axis connection plate (2) are provided with slots on one side facing the tooling base plate (3), and the tooling base plate (3) is inserted into the slots.

6. The processing device for drilling multiple holes in a bearing seat of a machining center according to claim 1, characterized in that: The other side surfaces of the tailstock connection plate (1) and the four-axis connection plate (2) are connected to the tailstock and the four-axis via bolts.

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