CN114769676A - Special drilling equipment of support part - Google Patents

Abstract

The invention provides a special drilling device for bracket parts, which belongs to the technical field of machining. The drilling device includes a base, a positioning block, a support plate, a drilling plate, a drill sleeve, a pressing slider, a support, an adjusting bolt and a J-shaped support block. Using the drilling device to complete the drilling process of the bracket parts on the ordinary drilling machine can realize the rapid positioning operation of the parts, and the positioning surface is a finishing surface, and the positioning accuracy is high; the device of the invention can pass the finishing surface of the parts. Quickly realize positioning and fast clamping by pressing the slider, which is simple and convenient; at the same time, the drilling device is made of common materials, and the structure of each part is simple, easy to process, low in production cost, and low in maintenance cost, suitable for for mass production.

Description

A special drilling device for bracket parts

technical field

The invention belongs to the technical field of machining, and relates to a special drilling device for bracket parts.

Background technique

The bracket part is an important part in the aircraft hydraulic system, which plays an important role in connecting the finished product. The bracket part has a complex shape, a large number of space dimensions, and various features on the part are irregularly distributed. This type of part is generally a semi-machined part. , First, the blank is obtained by casting or forging, and the basic shape of the part is obtained, and then part of the structure is finished according to the application of the part. In addition, for some bracket parts produced by casting, even if the machining can be completed on a milling machine or a lathe, it is difficult to select and clamp the positioning surface, and even cause the product to be out of tolerance and scrapped.

The invention relates to a bracket part. The part is a casting, the material is aluminum, and the parts to be processed are four blind holes. It has a large area and is relatively heavy, and the positioning and clamping process is complicated and cumbersome. Therefore, the present invention designs a special drilling device for the bracket part, which has high positioning efficiency, high precision, and convenient operation and maintenance.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, the present invention provides a special drilling device for bracket parts. The special drilling device and processing method are quick to adjust, easy to operate, simple in structure, accurate in positioning, and at the same time effectively reduce the cost and labor intensity of workers.

The technical scheme of the present invention is:

A special drilling device for bracket parts, comprising a base 1, a positioning block 2, a support plate 3, a drilling plate 4, a first drill sleeve 5, a second drill sleeve 6, a third drill sleeve 7, and a fourth drill sleeve 8 , Press the slider 9, the support 10, the support column 11, the adjustment bolt 12, the fastening bolt 13, the rotating shaft 14 and the J-shaped support block 15.

The base 1 is provided with a positioning surface 1-1 and a chute 1-3; wherein, the positioning surface 1-1 is used for positioning the bracket parts to be processed, and a chamfer 1-2 is provided on it for avoiding The bracket parts interfere with the bottom corner near the surface where the positioning surface 1-1 fits, resulting in inaccurate positioning; the sliding groove 1-3 is used to press the slider 9 to slide in the groove.

One end of the pressing sliding block 9 is provided with a boss which is matched with the sliding groove 1-3, so that the pressing sliding block 9 can slide freely in the sliding groove 1-3. The bosses and the chute 1-3 on the pressing slider 9 are dovetail structures.

The two ends of the support 10 are symmetrically provided with through holes, which are fixed on the base 1 by tightening bolts 13 at positions close to the chute 1-3; The matching method realizes the fit with the pressing slider 9 .

One end of the adjusting bolt 12 is provided with an external thread, which is matched with the threaded hole on the support 10 through the external thread; An adjustment handle is arranged away from the threaded end to facilitate adjustment.

The positioning block 2 is fixed on the upper surface of the base 1 to limit the position of the bracket part to be processed.

The support plate 3 is fixedly installed on the base 1 and is located on the side of the positioning block 2. The upper end of the support plate 3 is provided with a U-shaped notch. The two sides of the U-shaped notch are provided with holes for the rotating shaft 14 to pass through. 4 hinges.

The drilling plate 4 is provided with four through holes, and the first drill sleeve 5, the second drill sleeve 6, the third drill sleeve 7, and the fourth drill sleeve 8 are respectively installed. The relative positional relationship of the four through holes is related to the bracket. The holes to be machined on the part are identical. The drilling plate 4 is provided with a U-shaped notch away from the end of the rotating shaft, so as to reduce the weight of the drilling plate.

The J-shaped support block 15 is fixed on the upper part of the support plate 3 and is J-shaped as a whole to avoid interference during the relative rotation of the support plate 3 and the drilling plate 4 . The upper end of the J-shaped support block 15 plays a supporting role to ensure that when the drilling plate 4 is parallel to the horizontal plane, the upper end surface of the J-shaped support block 15 just fits the lower end surface of the drilling plate 4 to ensure drilling accuracy.

The upper end of the support column 11 is provided with a thread, which is connected to the base 1 through thread fit to play a supporting role; in addition, the support column is detachable through thread fit.

Compared with the prior art, the beneficial effects of the present invention are:

1. Accurate positioning. Using the device to complete the drilling processing of bracket parts on a common drilling machine can quickly realize the positioning operation of the parts, and the positioning surface is a finishing surface, and the positioning accuracy is high.

2. High clamping efficiency. The device can quickly realize positioning through the finishing surface of the part, and quickly realize clamping through pressing the slider, which is simple and convenient.

3. Simple production and low cost. The device is made of common materials, the structure of each part is simple, the processing is convenient, the manufacturing cost is low, and the maintenance cost is low, and it is suitable for mass production.

Description of drawings

Figure 1 is a schematic structural diagram of a part to be processed; (a) is a top view, (b) is a front view, and (c) is a side view.

FIG. 2 is a front view of the drilling apparatus.

Figure 3 is a left side view of the drilling device.

FIG. 4 is a perspective view of the drilling device.

FIG. 5 is a perspective view of the clamping and positioning of the drilling device.

In the figure: 1-base; 1-1 positioning surface; 1-2 chamfer; 1-3 chute; 2-positioning block; 3-support plate; 4-drilling plate; 5-first drill sleeve; 6 -The second drill sleeve; 7- The third drill sleeve; 8- The fourth drill sleeve; Rotating shaft; 15-J type support block.

Detailed ways

The specific embodiments of the present invention are further explained below with reference to the embodiments and the accompanying drawings, but are not intended to limit the present invention.

It should be understood that the appended drawings are not to scale, presenting a suitably simplified representation of various features illustrative of the basic principles of the invention. The specific design features of the invention disclosed herein, including, for example, the specific dimensions, orientations, locations, and profiles will be determined in part by the specific intended application and use environment. In the accompanying figures, the same or equivalent parts (elements) are referenced with the same reference numerals.

Fig. 1 is the structural schematic diagram of the part to be machined, wherein m1, m2, m3, m4 are the deep blind holes to be machined, A, B, C are the positioning datum planes, and the three planes are the finishing surfaces, which can be used as positioning datums, The remaining positions are the rough surface of the casting.

Before machining m1, m2, m3, and m4 with the above drilling device, the positioning and clamping operations of the bracket parts are completed first. Place the bracket parts on the base 1, so that the B surface is attached to the upper surface of the base 1, so that the A surface is attached to the positioning surface 1-1 on the base 1, so that the C surface is against the positioning block 2, Rotate the joint bolt 12 to push the pressing slider 9 to slide in the direction of the positioning block 2, and press it onto the part, so that the C surface of the part is closely attached to the positioning block, forming a certain pre-tightening force to achieve the compression Purpose.

The support plate 3 and the drilling plate 4 are hinged through the rotating shaft 14, and the two can rotate relative to each other. When installing parts, for the convenience of installation, the drilling plate 4 is rotated to make the drilling plate 4 away from the J-shaped support block 15, which can be easily carried out. Positioning and clamping operations; when the clamping and positioning operations are completed, turn the drilling plate 4 to make the lower surface of the drilling plate 4 fit on the upper surface of the J-shaped support block 15. At this time, ensure that the support plate 3 and the drilling plate are 4 are perpendicular to each other to ensure the accuracy of drilling.

Further, a spring is installed between the pressing slider 9 and the support 10, so that when the adjusting bolt 12 moves to the end away from the positioning block 2 when the drilling and dismantling of the parts is completed, the pressing slider 9 can be under the force of the spring. Under the action, return to the original position.

The implementation of the present invention has been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, and can also be made within the scope of knowledge possessed by those of ordinary skill in the art without departing from the purpose of the present invention. Various changes.

Claims (8)

1. A special drilling device for bracket parts, characterized in that the drilling device comprises a base (1), a positioning block (2), a support plate (3), a drilling plate (4), a drill sleeve, a pressing Slider (9), support (10), adjusting bolt (12) and J-shaped support block (15); The base (1) is provided with a positioning surface (1-1) and a chute (1-3); the positioning surface (1-1) is used for positioning the bracket parts to be processed; the pressing slider (9) The lower end is provided with a boss matched with the chute (1-3), so that the pressing slider (9) can slide freely in the chute (1-3); Both ends of the support (10) are fixed on the base (1) at positions close to the chute (1-3); the threaded end of the adjusting bolt (12) passes through the threaded hole in the middle of the support (10) and Press the end face of the sliding block (9) to fit to realize the pressing of the bracket parts; The positioning block (2) is fixed on the upper surface of the base (1) to limit the position of the bracket parts to be processed; The support plate (3) is fixedly installed on the base (1) and is located on the side of the positioning block (2); a U-shaped notch is provided at the upper end thereof, and both sides of the U-shaped notch are hinged with the drilling plate (4) through a rotating shaft ; The drilling plate (4) is provided with four through holes for installing four drilling sleeves; the relative positions of the four through holes are consistent with the holes to be processed on the bracket parts; The J-shaped support block (15) is fixed on the upper part of the support plate (3) and is J-shaped as a whole; the upper end of the J-shaped support block (15) plays a supporting role to ensure that when the drilling plate is parallel to the horizontal plane, the J-shaped support block The upper end surface of (15) just fits the lower surface of the drilling plate (4) to ensure drilling accuracy. 2 . The special drilling device for bracket parts according to claim 1 , wherein the drilling device further comprises a support column ( 11 ), the upper end of which is connected with the base ( 1 ) by threads to support effect. 3. A special drilling device for bracket parts according to claim 1 or 2, characterized in that a spring is installed between the pressing slider (9) and the support (10), and when the drilling and disassembly are completed When supporting parts, the adjusting bolt (12) moves to one end away from the positioning block (2), and the pressing slider (9) returns to the initial position under the action of the spring force. 4. A special drilling device for bracket parts according to claim 1 or 2, characterized in that, the positioning surface (1-1) is provided with a chamfer (1-2); ) and the chute (1-3) are dovetail structures. 5. A special drilling device for bracket parts according to claim 3, characterized in that, a chamfer (1-2) is provided on the positioning surface (1-1); The boss and the chute (1-3) are dovetail structures. 6. A special-purpose drilling device for a bracket part according to claim 1, 2 or 5, characterized in that the drilling plate (4) is provided with a U-shaped notch away from the end of the rotating shaft to reduce the weight of the drilling plate; The bolt (12) is provided with an adjustment handle away from the threaded end, which facilitates adjustment. 7. A special drilling device for bracket parts according to claim 3, characterized in that the drilling plate (4) is provided with a U-shaped notch away from the end of the rotating shaft to reduce the weight of the drilling plate; the adjusting bolt (12) An adjustment handle is provided away from the threaded end, which facilitates adjustment. 8. A special drilling device for bracket parts according to claim 4, characterized in that the drilling plate (4) is provided with a U-shaped notch away from the end of the rotating shaft to reduce the weight of the drilling plate; the adjusting bolt (12) An adjustment handle is provided away from the threaded end, which facilitates adjustment.

Images