Flange drilling tool for screening equipment

Abstract

The utility model relates to the technical field of flange drilling, in particular to a screening equipment flange drilling tool which comprises a base padded on the lower side of a flange and a cover plate pressed on the upper side of the flange, a guide hole is formed in the position, corresponding to a to-be-drilled position of the flange, of the cover plate, and a drilling sleeve is arranged on the guide hole. Positioning blocks are arranged on the left side, the right side and the rear side of the base, a first air cylinder is arranged on the right positioning block, and the output end of the first air cylinder is arranged leftwards and can push a flange to abut against the left positioning block; a second air cylinder is arranged on the cover plate, the output end of the second air cylinder is arranged downwards, and the flange can be tightly pressed on the base. According to the tool, through the left side positioning block, the rear side positioning block, the first air cylinder and the second air cylinder, the flange can be rapidly fixed to the machining position, the drill bushing is made to directly face the position, to be holed, of the flange, accurate holing of the flange is achieved, meanwhile, it can be guaranteed that the flange is kept stable in the machining process, and the holing precision and the holing quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flange drilling, in particular to a flange drilling tooling for a screening device. Background Art

[0002] A vibrating screen is a commonly used device in modern mineral processing, mainly used for operations such as material classification, dehydration, desliming, and degritting; the crossbeam is a main structural component of the vibrating screen, and its manufacturing accuracy has a great influence on the performance of the whole machine; the vibrating screen crossbeam is generally composed of a rectangular pipe and flanges welded at both ends; the flanges need to be processed and drilled according to the crossbeam size.

[0003] In the prior art, connection holes on the flange are usually processed by scribing and drilling. However, in the ordinary scribing and drilling methods, not only is it required that the construction personnel scribe accurately during scribing, but also when drilling, the drill bit needs to be aligned with the center point of the scribed line. Therefore, the processing error is large and it is difficult to ensure the positioning accuracy; although using a large gantry CNC boring and milling lathe for processing can meet the accuracy requirements, the processing cost is relatively high, and it is difficult for general small and medium-sized enterprises to bear; therefore, a flange drilling tooling for a screening device with high positioning accuracy and low processing cost is needed. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a flange drilling tooling for a screening device with low processing cost, high hole opening accuracy and good quality.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A flange drilling tooling for a screening device includes a base padded under the flange and a cover plate pressed on the upper side of the flange. Guide holes are provided on the cover plate corresponding to the positions where the flange is to be drilled, and drill sleeves are arranged on the guide holes; positioning blocks are arranged on the left, right and rear sides of the base, and a first cylinder is arranged on the right positioning block, and the output end of the first cylinder is arranged to the left, and can push the flange to abut against the left positioning block; a second cylinder is arranged on the cover plate, and the output end of the second cylinder is arranged downward, and can tightly press the flange on the base.

[0007] The utility model adopting the above technical solution, compared with the prior art, its prominent feature is:

[0008] This tooling can quickly fix the flange to the processing position through the left positioning block, rear positioning block, first cylinder and second cylinder, make the drill sleeve directly face the position where the flange is to be drilled, realize precise drilling of the flange, and at the same time, can ensure that the flange remains stable during the processing process, improving the drilling accuracy and drilling quality.

[0009] As a preference, a further technical solution of the utility model is:

[0010] Preferably, a pressing plate is further provided on the lower side of the cover plate, and the pressing plate is threadedly connected to the output end of the second cylinder; through the pressing plate, the contact area with the flange is increased, and it can be avoided that the contact point between the second cylinder and the flange is too small, resulting in the inclination and shaking of the flange during hole opening.

[0011] Preferably, the base includes a bottom plate, and a convex rib is arranged on the bottom plate along the front-back direction avoiding the position where the flange is to be drilled; when the flange is placed on the base, it is ensured that the position where the flange is to be drilled is suspended, which is convenient for hole opening.

[0012] Preferably, the convex rib extends from the front side of the bottom plate to the outside of the base, and extends 10 mm - 30 mm beyond the base; it is convenient to push the flange from the front side into the space between the base and the cover plate, providing guidance for pushing the flange.

[0013] Preferably, the positioning block is connected to the base and the cover plate through set screws, and the convex rib is connected to the bottom plate through set screws; both the positioning block and the convex rib are detachably connected, which is convenient for replacing the adapted positioning block, convex rib and upper cover plate according to different types of flanges. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the flange drilling tooling of the screening equipment in the embodiment of the present invention;

[0015] Figure 2 is a schematic structural diagram of the base in the embodiment of the present invention;

[0016] Figure 3 is another schematic structural diagram of the base in the embodiment of the present invention;

[0017] Figure 4 is a schematic diagram of the positional relationship when the flange is placed on the base in the embodiment of the present invention;

[0018] Figure 5 is a schematic diagram after the flange is drilled in the embodiment of the present invention;

[0019] Figure 6 is a schematic top view structural diagram of the flange drilling tooling of the screening equipment in the embodiment of the present invention;

[0020] Figure 7 is a schematic side view structural diagram of the flange drilling tooling of the screening equipment in the embodiment of the present invention.

[0021] Description of the reference numerals: 1. Base; 101. Bottom plate; 102. Convex rib; 2. Flange; 3. Cover plate; 4. Drill sleeve; 5. Positioning block; 6. First cylinder; 7. Second cylinder; 8. Pressing plate; 9. Set screw. Detailed Description of the Invention

[0022] The following further elaborates on the present utility model in conjunction with specific embodiments. The purpose is only to better understand the content of the present utility model. Therefore, the examples given do not limit the protection scope of the present utility model.

[0023] As shown in Figure 1 , Figure 4 , Figure 5 , Figure 6 , this embodiment provides a drilling tooling for the flange 2 of a screening device, which includes a base 1 placed under the lower side of the flange 2 and a cover plate 3 pressed on the upper side of the flange 2. A guide hole is provided on the cover plate 3 corresponding to the position where the flange 2 is to be drilled, and a drill bushing 4 is arranged on the guide hole; positioning blocks 5 are arranged on the left, right, and rear sides of the base 1, and a first cylinder 6 is arranged on the outer side of the right positioning block 5. A through hole for the output end of the first cylinder 6 to pass through is provided on the right positioning block 5, and the output end of the first cylinder 6 can penetrate through the positioning block 5 from the through hole to push the flange 2 to the left until it abuts against the left positioning block 5; a second cylinder 7 is arranged on the cover plate 3, and the output end of the second cylinder 7 is arranged downward and can tightly press the flange 2 on the base 1.

[0024] During use, first assemble the drilling tooling, and then push the flange 2 to be processed from the front side between the base 1 and the cover plate 3 until the flange 2 abuts against the rear positioning block 5. Then, the output end of the first cylinder 6 outputs to the left to push the flange 2 to the left until the flange 2 abuts against the left positioning block 5. Then, the output end of the second cylinder 7 moves downward to tightly press the flange 2 on the base 1. After fixing the flange 2, drill the flange 2 along the drill bushing 4.

[0025] As shown in Figure 7 , a pressure plate 8 is further arranged on the lower side of the cover plate 3, and the pressure plate 8 is threadedly connected to the output end of the second cylinder 7; through the pressure plate 8, the contact area with the flange 2 is increased, and when drilling, the flange 2 is prevented from being unstable and tilting or shaking; among them, the pressure plate 8 is square, and when it is pressed on the upper surface of the flange 2, it does not affect the drilling operation of the flange 2.

[0026] As shown in Figure 2 , the base 1 includes a bottom plate 101, and a convex rib 102 is arranged on the bottom plate 101 along the front-rear direction, avoiding the position where the flange 2 is to be drilled.

[0027] As shown in Figure 3 , the convex rib 102 extends from the front side of the bottom plate 101 to the outside of the base 1, extending 10 mm - 30 mm beyond the base 1; it is convenient to place the flange 2 on the convex rib 102 and push the flange 2 from the front side between the base 1 and the cover plate 3, providing a guiding function for pushing the flange 2.

[0028] As shown in Figure 7As shown, the positioning block 5 is connected to the base 1 and the cover plate 3 by set screws 9, and the convex rib 102 is connected to the bottom plate 101 by set screws 9; both the positioning block 5 and the convex rib 102 are detachably connected, facilitating the replacement of the suitable positioning block 5, convex rib 102 and upper cover plate 3 according to different types of flanges 2.

[0029] Using this tooling to drill the flange 2 reduces the drilling cost of the flange 2, improves the hole opening accuracy and quality of the flange 2, and the tooling can replace the suitable positioning block 5, convex rib 102 and upper cover plate 3 according to different types of flanges 2, with strong versatility.

[0030] The above are only the preferred embodiments of the present utility model that can be implemented, and do not limit the scope of rights of the present utility model. Any equivalent changes made by using the content of the specification and drawings of the present utility model are included within the scope of rights of the present utility model.

Claims

1. A flange drilling tool for screening equipment, characterized in that: The invention comprises a base (1) cushioned on the lower side of a flange (2) and a cover plate (3) pressed on the upper side of the flange (2); a guide hole is arranged on the cover plate (3) corresponding to the position of the flange (2) to be drilled, and a drill sleeve (4) is arranged on the guide hole; positioning blocks (5) are arranged on the left side, right side and rear side of the base (1); a first cylinder (6) is arranged on the right positioning block (5); the output end of the first cylinder (6) is arranged to the left, and the flange (2) can be pushed to abut against the left positioning block (5); a second cylinder (7) is arranged on the cover plate (3); the output end of the second cylinder (7) is arranged to face downward, and the flange (2) can be pressed tightly against the base (1).

2. The flange drilling tool for screening equipment according to claim 1, characterized in that: A pressing plate (8) is also provided on the lower side of the cover plate (3), and the pressing plate (8) is threadedly connected to the output end of the second cylinder (7).

3. The flange drilling tool for screening equipment according to claim 1, characterized in that: The base (1) comprises a bottom plate (101), and a convex rib (102) is arranged on the bottom plate (101) along the front-to-back direction away from a position where a hole is to be opened on the flange (2).

4. The flange drilling tool for screening equipment according to claim 3, characterized in that: The convex rib (102) extends from the front side of the bottom plate (101) toward the outside of the base (1), and extends to a distance of 10 mm to 30 mm beyond the base (1).

5. The flange drilling tool for screening equipment according to claim 3, characterized in that: The positioning block (5) is connected to the base (1) and the cover plate (3) via a set screw (9), and the convex rib (102) is connected to the bottom plate (101) via a set screw (9).

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