Flange plate drilling connection tool

Abstract

The utility model discloses a flange plate drilling connection tool which comprises a limiting block, a fixed disc, a rotating disc, a positioning pin and a chuck, the limiting block, the fixed disc, the rotating disc, the positioning pin and the chuck are coaxial, the limiting block and the rotating disc are in bolt connection, the fixed disc is clamped between the limiting block and the rotating disc, and the rotating disc and the chuck are also in bolt connection. The fixed disc and the rotating disc can rotate relatively, a plurality of positioning holes are formed in the fixed disc and the rotating disc at equal angles, and the positioning pins are inserted into the positioning holes of the fixed disc and the rotating disc. The tool has the beneficial effects that the tool is firstly mounted on a working platform of a machine tool, and then the position of a first hole to be drilled is processed by a caliper. After the first hole is machined, the positioning pin is detached firstly, then the rotating disc is rotated to the corresponding positioning hole of the fixed disc, then the positioning pin is installed again, finally drilling continues to be conducted, the operation mode is repeated, in this way, it is not needed to determine the hole opening position through a vernier caliper and an index plate every time, and the working efficiency can be effectively improved.

Description

Technical Field

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

[0002] Flange is a part used to connect shafts. It is usually in the shape of a ring or a disc, with a number of bolt holes at equal angles around the periphery. Two workpieces are fixed together on the same flange by bolts.

[0003] With the development of mechanical processing, flange drilling is now mostly processed by CNC or automated production, and one or more drill bits are used to open holes and tap the side of the flange. However, if small batch orders or single samples are also automated, the automated equipment needs to be debugged accordingly, which makes the cost relatively high and is not suitable for automated equipment. Therefore, when encountering the above situation, vertical manual drilling machines are still mostly used. The hole positions are pre-marked on the flange by manual marking or using a dividing plate before drilling. However, this method of marking drilling points is relatively inefficient. Therefore, a connecting tool that can improve the drilling efficiency of traditional drilling machines is needed to complete the rotation and adjustment of the next drilling position. Utility Model Content

[0004] (I) Technical solution

[0005] In order to solve the above technical problems, the utility model provides a flange drilling connection tool.

[0006] The specific technical solutions are:

[0007] A flange drilling connection tool comprises a limit block, a fixed plate, a rotating plate, a positioning pin and a chuck, wherein the limit block, the fixed plate, the rotating plate, the positioning pin and the chuck are coaxial, the limit block and the rotating plate are bolted, the fixed plate is clamped between the limit block and the rotating plate, the rotating plate and the chuck are also bolted, the fixed plate and the rotating plate can rotate relative to each other, a plurality of positioning holes are provided on the fixed plate and the rotating plate at equal angles, and the positioning pin is inserted into the positioning holes of the fixed plate and the rotating plate.

[0008] Furthermore, a through hole is opened in the middle of the fixed disk, and a protrusion is provided on the side of the rotating disk close to the fixed disk. The protrusion passes through the through hole in the middle of the fixed disk and contacts the limit block, and the protrusion is bolted to the limit block. The through hole in the middle of the fixed disk forms two annular grooves with the limit block and the side wall of the rotating disk respectively, and a plane bearing is provided inside the groove.

[0009] Furthermore, another annular groove is provided on one side of the fixed disk close to the rotating disk, and a plane bearing is also provided inside the groove.

[0010] Furthermore, the number of positioning holes on the fixed disk is 3-24 and are arranged at equal angles, the number of positioning holes on the rotating disk is 4 and are arranged at equal angles, and the number of positioning pins is 4.

[0011] Furthermore, the fixed disk includes an inner ring and an outer ring, the inner ring and the outer ring can rotate relative to each other, the outer wall of the outer ring is provided with an annular groove, a rotating block and the limiting ring are provided in the annular groove, there are multiple rotating blocks, the limiting ring passes through multiple rotating blocks, and a positioning hole is provided on the rotating block.

[0012] Furthermore, each of the plurality of rotating blocks is provided with a clevis bolt for fixing.

[0013] Furthermore, there are at least four rotating blocks.

[0014] (II) Beneficial effects

[0015] Compared with the prior art, the utility model first installs the tooling on the machine tool working platform, and then uses a caliper to determine the position of the first hole to be drilled for processing. After the first hole is processed, the positioning pin is first removed, and then the rotating disk is rotated to the corresponding positioning hole of the fixed disk, and then the positioning pin is reinstalled, and finally the drilling is continued, and the above operation is repeated. In this way, there is no need to determine the hole opening position by a vernier caliper and a dividing plate every time, which can effectively improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is an exploded view of the utility model;

[0019] Figure 3 This is a cross-sectional view of the utility model;

[0020] Figure 4 This is a schematic diagram of the fixed disk structure of Embodiment 2;

[0021] Figure 5 This is a front view of the fixed plate of the second embodiment;

[0022] In the figure: 1-limiting block, 2-fixed disk, 3-rotating disk, 4-locating pin, 5-chuck, 6-protrusion, 7-plane bearing, 2a-inner ring, 2b-outer ring, 2c-rotating block, 2d-limiting ring, 2e-shroud bolt. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. The described embodiments are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the relevant existing technologies, flange drilling is now mostly processed by CNC or automated production, and one or more drill bits are used to open holes and tap the side of the flange. However, if small batch orders or single samples are also automated, the automated equipment needs to be debugged accordingly, which makes the cost relatively high and not suitable for automated equipment. Therefore, when encountering the above situation, a vertical manual drilling machine is still mostly used. The hole position is first marked on the flange by manual marking or a dividing plate before drilling. However, this method of marking drilling points is relatively inefficient. Therefore, a connecting tool that can improve the drilling efficiency of a traditional drilling machine is needed to complete the rotation and adjustment of the next drilling position.

[0025] In order to solve the problems existing in the related prior art, the utility model proposes a flange drilling connection tool. The principle and structure of the utility model are described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] Embodiment 1

[0027] See also Figures 1 to 3 The utility model proposes a flange drilling connection tool, comprising a limit block 1, a fixed disk 2, a rotating disk 3, a positioning pin 4 and a chuck 5. The limit block 1, the fixed disk 2, the rotating disk 3, the positioning pin 4 and the chuck 5 are coaxial, the limit block 1 and the rotating disk 3 are bolted, the fixed disk 2 is clamped between the limit block 1 and the rotating disk 3, the rotating disk 3 and the chuck 5 are also bolted, the fixed disk 2 and the rotating disk 3 can rotate relatively, the fixed disk 2 and the rotating disk 3 are provided with a plurality of positioning holes at equal angles, the positioning pin 4 is inserted into the positioning holes of the fixed disk 2 and the rotating disk 3, specifically, the number of positioning holes on the fixed disk 2 is 3-24 and are arranged at equal angles, the number of positioning holes on the rotating disk 3 is 4 and are arranged at equal angles, and the number of positioning pins 4 is 4.

[0028] Specifically, a through hole is opened in the middle of the fixed disk 2, and a protrusion 6 is provided on the side of the rotating disk 3 close to the fixed disk 2. The protrusion 6 passes through the through hole in the middle of the fixed disk 2 and contacts with the limit block 1, and the protrusion 6 is connected to the limit block 1 by bolts. The through hole in the middle of the fixed disk 2 forms two annular grooves with the side walls of the limit block 1 and the rotating disk 3 respectively, and a plane bearing 7 is provided inside the groove.

[0029] See also Figure 3 Another annular groove is provided on the side of the fixed disk 2 close to the rotating disk 3, and a plane bearing 7 is also provided inside the groove.

[0030] Specific working principle: When in use, first mark the first position where a hole needs to be drilled on the flange to be processed with a measuring tool such as a vernier caliper, then fix the workpiece to the tooling through a chuck, and then fix the tooling to the corresponding position on the lower part of the drill bit so that the drill bit corresponds to the marked position, and then turn on the drilling equipment to drill. When the drilling is completed, pull out the locating pin 4, and then rotate the rotating disk 3. After rotating to the specified angle, re-insert the locating pin 4 into the locating hole and re-drill. Because the number of connecting holes on the conventional flange is 6-12, setting the locating holes on the fixed disk 2 to 3-24 can adapt to the locating hole positioning operations for most flange processing. In this way, there is no need to repeatedly measure and mark the positions of multiple locating holes, which can effectively shorten the processing time of the flange and improve work efficiency.

[0031] Embodiment 2

[0032] Based on the same inventive concept, when it is necessary to process some special-shaped flanges, such as uneven hole positions on the flange, or the hole positions are not arranged at equal angles, the following technical scheme is proposed, including a limit block 1, a fixed disk 2, a rotating disk 3, a positioning pin 4 and a chuck 5. The limit block 1, the fixed disk 2, the rotating disk 3, the positioning pin 4 and the chuck 5 are coaxial, the limit block 1 and the rotating disk 3 are bolted, the fixed disk 2 is clamped between the limit block 1 and the rotating disk 3, the rotating disk 3 and the chuck 5 are also bolted, the fixed disk 2 and the rotating disk 3 can rotate relative to each other, and a plurality of positioning holes are provided on the fixed disk 2 and the rotating disk 3 at equal angles, and the positioning pin 4 is inserted into the positioning holes of the fixed disk 2 and the rotating disk 3.

[0033] Specifically, the fixed disk 2 includes an inner ring 2a and an outer ring 2b. The inner ring 2a and the outer ring 2b can rotate relative to each other and are fixed after rotating to any position. This effect is a conventional setting in the field, such as using a limit bolt or a fastening bolt to complete the fixation. The outer wall of the outer ring 2b is provided with an annular groove, and the annular groove is hollowed out on the side close to the rotating disk 3. A rotating block 2c and a limit ring 2d are provided in the annular groove. There are multiple rotating blocks 2c, specifically at least 4, and this embodiment uses 6. The limit ring 2d passes through multiple rotating blocks 2c. The rotating block 2c can slide to any position in the annular groove. A positioning hole is provided on the rotating block 2c, and multiple rotating blocks 2c are provided with clevis bolts 2e for fixing.

[0034] During specific use, the rotating block 2c is first rotated according to the angle distribution of the drilling position to be required, so that the angle distribution of each rotating block 2c corresponds to the angle distribution of the holes to be drilled on the flange. Specifically, the angle can be engraved on the outer wall of the fixed disk, so that there is no need to measure and it is more convenient to use. At the same time, the inner ring 2a and the outer ring 2b can rotate relative to each other to prevent the outer ring 2b from blocking the positioning hole when it is close to the side of the rotating disk 3. When the rotating block 2c is rotated to the specified position, the rotating block 2c is fixed by the horn bolt 2e, and then the same operation as above is performed, that is, the flange to be processed is first marked with a measuring tool such as a vernier caliper at the first position where a hole needs to be drilled, and then the workpiece is fixed to the tooling through a chuck, and then the tooling is fixed to the corresponding position of the lower part of the drill bit so that the drill bit corresponds to the marked position, and then the drilling equipment is turned on for drilling. When the drilling is completed, the locating pin 4 is pulled out, and then the rotating disk 3 is rotated. After rotating to the specified angle, the locating pin 4 is reinserted into the locating hole and the drilling is performed again. The above embodiment can cope with some situations where the drilling holes are not set at equal angles, thereby improving applicability.

[0035] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A flange drilling connection tool, characterized in that: The invention comprises a limit block (1), a fixed disk (2), a rotating disk (3), a positioning pin (4) and a chuck (5); the limit block (1), the fixed disk (2), the rotating disk (3), the positioning pin (4) and the chuck (5) are coaxial; the limit block (1) and the rotating disk (3) are connected by bolts; the fixed disk (2) is clamped between the limit block (1) and the rotating disk (3); the rotating disk (3) and the chuck (5) are also connected by bolts; the fixed disk (2) and the rotating disk (3) can rotate relative to each other; a plurality of positioning holes are provided on the fixed disk (2) and the rotating disk (3) at equal angles; and the positioning pin (4) is inserted into the positioning holes of the fixed disk (2) and the rotating disk (3).

2. The flange drilling connection tool according to claim 1, characterized in that: A through hole is provided in the middle of the fixed disk (2); a protrusion (6) is provided on the side of the rotating disk (3) close to the fixed disk (2); the protrusion (6) passes through the through hole in the middle of the fixed disk (2) and contacts the limit block (1); the protrusion (6) and the limit block (1) are connected by bolts; the through hole in the middle of the fixed disk (2) and the side walls of the limit block (1) and the rotating disk (3) respectively form two annular grooves; a plane bearing (7) is provided inside the grooves.

3. The flange drilling connection tool according to claim 2, characterized in that: Another annular groove is provided on one side of the fixed disk (2) close to the rotating disk (3), and a plane bearing (7) is also provided inside the groove.

4. A flange drilling connection tool according to claim 3, characterized in that: The number of positioning holes on the fixed disk (2) is 3-24 and they are arranged at equal angles, the number of positioning holes on the rotating disk (3) is 4 and they are arranged at equal angles, and the number of positioning pins (4) is 4.

5. The flange drilling connection tool according to claim 1, characterized in that: The fixed disk (2) comprises an inner ring (2a) and an outer ring (2b), the inner ring (2a) and the outer ring (2b) being relatively rotatable, an annular groove being provided on the outer wall of the outer ring (2b), a rotating block (2c) and a limiting ring (2d) being provided in the annular groove, a plurality of rotating blocks (2c), the limiting ring (2d) penetrating through the plurality of rotating blocks (2c), and a positioning hole being provided on the rotating block (2c).

6. The flange drilling connection tool according to claim 5, characterized in that: A plurality of the rotating blocks (2c) are each provided with a clevis bolt (2e) for fixing.

7. The flange drilling connection tool according to claim 6, characterized in that: The number of the rotating blocks (2c) is at least four.

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