Flange drilling equipment

Abstract

The utility model relates to a flange drilling device, including a device body, a rotatable workbench is provided on the device body, a drilling device for drilling a flange is provided above the workbench, an outer ring clamping assembly for clamping the outer ring of the flange and an inner ring clamping assembly for clamping the inner ring of the flange are provided on the workbench, a storage table for placing the flange is convexly provided on the workbench, the inner ring clamping assembly is arranged concentrically with the storage table, and the radius of the storage table is smaller than the radius from the center of the flange to the position to be drilled. The main purpose of the utility model is to provide a flange drilling device with reasonable and ingenious design, stable and reliable clamping, and convenient drilling operation.

Description

Technical Field

[0001] The utility model relates to a drilling device, in particular to a flange drilling device. Background Art

[0002] Flanges are important parts commonly used in the modern machinery industry. They are mainly used to connect two pipes or two devices. In order to facilitate the connection, flanges usually need to open several through holes for connection around the disc-shaped metal body during the production and processing process.

[0003] In the prior art, a Chinese patent with publication number CN219787448U discloses a punching device for flanges, which includes a workbench, a cross-shaped groove is provided on the top of the workbench; a threaded rod is rotatably connected to the inner wall of the cross-shaped groove; a first slider is slidably connected inside the cross-shaped groove; the threaded rod is threadedly connected to the first slider; an L-shaped block is fixedly connected to the top of the first slider; a fixing assembly is provided on the surface of the L-shaped block; a motor is fixedly connected to the center bottom of the workbench; a rotating shaft is provided at the output of the motor; this technical solution solves the existing flange clamping device, which has a single size. , and cannot adapt to the problem of flanges of various sizes; however, the flange in this technical solution needs to be clamped and loosened repeatedly during the drilling process, and when loosened, it needs to be rotated manually or with the assistance of a machine until the drill bit is aligned with the next drilling station. The operation is still cumbersome and the drilling efficiency is low; at the same time, since the top of the cross groove is open, the debris generated during drilling can easily enter the cross groove and is not easy to clean. Excessive accumulation will affect the normal rotation of the threaded rod; it may even enter the connecting gap between the first slider and the threaded rod, causing the first slider to be unable to move normally, thereby affecting the clamping effect or causing the entire device to malfunction. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a flange drilling device with reasonable and ingenious design, stable and reliable clamping, and convenient drilling operation.

[0005] In order to solve the above problems, the technical solutions adopted by the utility model are as follows:

[0006] A flange drilling device comprises an equipment body, a rotatable workbench is provided on the equipment body, a drilling device for drilling holes in the flange is provided above the workbench, an outer ring clamping assembly for clamping the outer ring of the flange and an inner ring clamping assembly for clamping the inner ring of the flange are provided on the workbench, a storage table for placing the flange is convexly provided on the workbench, the inner ring clamping assembly is arranged concentrically with the storage table, and the radius of the storage table is smaller than the radius from the center of the flange to the position to be drilled.

[0007] Furthermore, the outer ring clamping assembly includes an outer clamping plate that can perform linear reciprocating motion along the radial direction of the flange, the bottom of the outer clamping plate is fixedly connected to the sliding block, and the workbench is provided with a clearance groove for the sliding block to reciprocate, and a protective plate is arranged on the side of the outer clamping plate close to the storage table, the protective plate covers the upper part of the clearance groove, and the width of the protective plate is greater than the width of the clearance groove, and the highest point of the upper surface of the protective plate is lower than the upper surface of the storage table.

[0008] Furthermore, a screw rod is provided in the give way groove, both ends of the screw rod are rotatably mounted on the give way groove, and one end of the screw rod is transmission connected to the driving mechanism, the sliding block is threadedly sleeved on the above-mentioned screw rod, and the sliding block is slidably matched with the give way groove.

[0009] Furthermore, the cross-sectional structure of the protective plate after being cut along the width direction of the clearance groove is an arc-shaped structure or a conical structure with a high middle and low sides.

[0010] Furthermore, the inner ring clamping assembly includes a mounting seat, a plurality of inner clamping plates telescopically connected to the mounting seat, and a control screw for controlling the simultaneous telescoping of the plurality of inner clamping plates, wherein the plurality of inner clamping plates are evenly distributed along the circumferential direction of the mounting seat.

[0011] Furthermore, the mounting seat is provided with interconnected threaded holes and receiving grooves in sequence from top to bottom, the inner diameter of the receiving groove is larger than the inner diameter of the threaded hole, the threaded hole is threadedly connected to a rod portion of a control screw, one end of the rod portion extends into the inner side of the receiving groove and is rotatably connected to a tapered portion, and the mounting seat is provided with a plurality of sliding grooves corresponding to the inner clamping plate, the sliding grooves are connected to the receiving grooves, a telescopic rod is slidably connected in the sliding grooves, one end of the telescopic rod is in contact with the outer surface of the tapered portion, and the other end is fixedly connected to the inner clamping plate.

[0012] Furthermore, the head of the control screw is fixedly connected to an end of the rod away from the tapered portion.

[0013] Furthermore, the drilling device includes a support frame fixed on the workbench, a mounting frame slidably connected to the support frame in a vertical direction, and a drilling assembly slidably connected to the mounting frame in a horizontal direction.

[0014] Compared with the prior art, the beneficial effects of the utility model are: the utility model can simultaneously realize the abutment and fixation of the inner ring and the outer ring of the flange, and the clamping effect is stable and reliable. At the same time, since the storage table adopts a protruding design, when the flange is placed, there is a gap between its bottom surface and the upper surface of the workbench to accommodate the debris generated during drilling; and in order to prevent the debris from entering the give way groove, which is difficult to clean, or even entering between the sliding block and the screw rod to affect the normal movement of the sliding block, a protective plate is designed. The protective plate has a structure that is high in the middle and low on both sides, so the debris will slide from the protective plate to the workbench surface on both sides of the give way groove, and will not enter the give way groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view of a flange drilling device of the utility model;

[0016] Figure 2 A top view of a flange drilling device of the utility model;

[0017] Figure 3 This is a top view of a flange drilling device of the utility model after removing the drilling device;

[0018] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure cut along the AA direction;

[0019] Figure 5 for Figure 4 Schematic diagram of the structure after flange installation;

[0020] Among them, 1. Equipment body; 2. Workbench; 21. Give way groove; 22. Storage table; 3. Outer ring clamping assembly; 31. Outer clamping plate; 32. Protective plate; 33. Screw; 34. Sliding block; 35. Driving mechanism; 23. Transmission part; 4. Inner ring clamping assembly; 41. Mounting seat; 411. Receiving groove; 412. Threaded hole; 42. Control screw; 421. Head; 422. Rod; 423. Conical part; 43. Inner clamping plate; 431. Telescopic rod; 5. Drilling assembly; 51. Drill bit; 6. Mounting frame; 7. Support frame. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] It should be noted that, in the description of the technical solution of the present invention, some directional words used to clearly describe the technical features of the present invention, such as "front", "back", "up", "down", "top", "bottom", "inside", "outside", etc., are all in accordance with the orientation of the drawings of the present invention.

[0023] Example

[0024] like Figure 1 and Figure 2 As shown, a flange drilling device of this embodiment includes an equipment body 1, on which a rotatable workbench 2 is provided, and a transmission part 23 is provided at the bottom of the workbench 2, which is connected to the driving device in the equipment body 1 through the transmission part 23. When the driving device is started, the workbench 2 can be driven to rotate through the transmission part 23. A drilling device for drilling holes in the flange is provided above the workbench 2, and the drilling device includes a support frame 7 fixed on the workbench 2, a mounting frame 6 slidably connected to the support frame 7 in the vertical direction, and a drilling assembly 5 slidably connected to the mounting frame 6 in the horizontal direction. The sliding connection method and structure adopted in this embodiment are the sliding connection methods and structures in the prior art, and will not be described in detail here. The drilling assembly 5 has a drill bit 51 for drilling holes in the flange.

[0025] like Figure 3 and Figure 4 As shown, the workbench 2 is provided with an outer ring clamping assembly 3 for clamping the outer ring of the flange and an inner ring clamping assembly 4 for clamping the inner ring of the flange, and the inner ring and the outer ring of the flange are clamped and fixed at the same time, and the effect is more significant and stable. The workbench 2 is convexly provided with a placement table 22 for placing the flange, and the inner ring clamping assembly 4 is arranged concentrically with the placement table 22. The radius of the placement table 22 is smaller than the radius from the center of the flange to the position to be drilled. With this design, there is a certain gap between the flange drilling position and the workbench 2, which can accommodate the debris generated during drilling.

[0026] The outer ring clamping assembly 3 includes an outer clamping plate 31 that can make linear reciprocating motion along the radial direction of the flange. The bottom of the outer clamping plate 31 is fixedly connected to the sliding block 34. The workbench 2 is provided with a clearance groove 21 for the sliding block 34 to reciprocate. Specifically in this embodiment, a screw rod 33 is provided in the clearance groove 21. Both ends of the screw rod 33 are rotatably installed on the clearance groove 21, and one end of the screw rod 33 is transmission-connected with a driving mechanism 35. The sliding block 34 is threadedly sleeved on the screw rod 33, and the sliding block 34 is slidably matched with the clearance groove 21. When the driving mechanism 35 is started, the screw rod 33 is driven to rotate, thereby driving the sliding block 34 to move linearly, and then driving the outer clamping plate 31 to make linear reciprocating motion along the radial direction of the flange. The driving mechanism 35 in this embodiment adopts a structure in the prior art, such as a structure composed of a driving motor and a reducer. The outer ring clamping components 3 in this embodiment have two, and the two outer ring clamping components 3 have the same structure and are symmetrically distributed relative to the inner ring clamping component 4, and are used to clamp on both sides of the outer ring of the flange. In order to improve the fit between the outer clamping plate 31 and the outer ring of the flange, and thus improve the clamping stability, the outer clamping plate 31 is designed as an arc-shaped plate structure in this embodiment, and the inner side surface of the outer clamping plate 31 is an arc-shaped surface that fits with the outer ring surface of the flange.

[0027] A protective plate 32 is provided on one side of the outer clamping plate 31 close to the storage table 22. The protective plate 32 covers the upper part of the clearance groove 21, and the width of the protective plate 32 is greater than the width of the clearance groove 21. The highest point of the upper surface of the protective plate 32 is lower than the upper surface of the storage table 22. The cross-sectional structure of the protective plate 32 cut along the width direction of the clearance groove 21 is an arc structure or a conical structure with a high middle and low sides. When the outer clamping plate 31 is clamped on the outer ring of the flange, the distance between the end of the protective plate 32 and the center of the flange is less than the distance from the position to be drilled to the center of the flange. With this design, the debris generated during drilling will not fall into the clearance groove 21, but fall on the protective plate 32. Since the protective plate 32 is a structure with a high middle and low sides, the debris will slide from the protective plate 32 to the surface of the workbench 2 on both sides of the clearance groove 21, thereby preventing the debris from falling into the clearance groove 32 and affecting the threaded transmission cooperation between the screw rod 33 and the sliding block 34.

[0028] The inner ring clamping assembly 4 comprises a mounting seat 41, a plurality of inner clamping plates 43 telescopically connected to the mounting seat 41, and a control screw 42 for controlling the simultaneous telescoping of the plurality of inner clamping plates 43, wherein the plurality of inner clamping plates 43 are evenly spaced along the circumferential direction of the mounting seat 41. The mounting seat 41 is provided with a threaded hole 412 and a receiving groove 411 which are connected in sequence from top to bottom, wherein the inner diameter of the receiving groove 411 is larger than the inner diameter of the threaded hole 412, and the rod 422 of the control screw 42 is threadedly connected in the threaded hole 412, and one end of the rod 422 extends into the inner side of the receiving groove 411 and is rotatably connected with a tapered portion 423, wherein the tapered portion 423 in this embodiment is a circular frustum structure, and the rotatable connection method between the tapered portion 423 and the rod 422 adopts the structure in the prior art, such as a bearing connection method. The mounting seat 41 is provided with a plurality of slide grooves corresponding to the inner clamping plate 43. The slide grooves are connected with the receiving grooves 411. The axis of the slide grooves is arranged radially along the flange to be placed. At the same time, the axis of the slide grooves is perpendicular to the axis of the threaded hole 412. A telescopic rod 431 is slidably connected in the slide grooves. One end of the telescopic rod 431 contacts the outer surface of the conical portion 423, and the other end is fixedly connected to the inner clamping plate 43. The head 421 of the control screw 42 is fixedly connected to the end of the rod 422 away from the conical portion 43, which is convenient for the operator to hold. The head 421 of the control screw 42 is rotated to drive the rod 422 to move axially along the threaded hole 412, thereby driving the conical portion 423 to move accordingly, and then driving the telescopic rod 431 in contact with the outer surface of the conical portion 423 to move radially along the flange to achieve the resistance or release of the inner ring of the flange.

[0029] During processing, the flange to be processed is first placed on the storage table 22, and then the head 421 of the control screw 42 is manually rotated to drive the tapered portion 43 to move axially along the threaded hole 412, thereby driving the multiple telescopic rods 431 to move outward at the same time until the multiple inner clamping plates 43 are simultaneously abutted against the inner ring of the flange to form a support and fixation for the inner ring of the flange (refer to Figure 5 ). Then start the driving mechanism 35 to drive the screw 33 to rotate, thereby driving the sliding block 34 to move linearly, and then driving the outer clamping plate 31 to move radially along the flange until it is clamped on the outer ring of the flange, thereby achieving the support and fixation of the outer ring of the flange. Then start the drilling device, the drilling assembly 5 moves down along the support frame 7, and the flange is drilled by the drill bit 51. After a slot hole is processed, the drilling assembly 5 moves up along the support frame 7, and the drill bit 51 moves up accordingly. Then the driving device is started, and the workbench 2 is driven to rotate through the transmission part 23, thereby driving the flange to rotate until it stops at the next drilling station. Then the drilling assembly 5 repeats the above operation to drill the flange. Repeat the above process until the drilling operation of the entire flange is completed.

[0030] The utility model provides a flange drilling device, which can simultaneously realize the support and fixation of the inner ring and the outer ring of the flange, and the clamping effect is stable and reliable. At the same time, since the storage table 22 adopts a protruding design, when the flange is placed, there is a gap between its bottom surface and the upper surface of the workbench 2 to accommodate the debris generated during drilling; and in order to prevent the debris from entering the clearance groove 21, which is difficult to clean, or even entering between the sliding block 34 and the screw rod 33 to affect the normal movement of the sliding block 34, a protective plate 32 is designed. The protective plate 32 is a structure with a high middle and low sides, so the debris will slide from the protective plate 32 to the workbench 2 surface on both sides of the clearance groove 21, and will not enter the clearance groove 21.

[0031] For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all of these changes and deformations should fall within the protection scope of the claims of the utility model.

Claims

1. A flange drilling device, characterized in that: The invention comprises an equipment body (1), wherein a rotatable workbench (2) is provided on the equipment body (1), a drilling device for drilling holes in a flange is provided above the workbench (2), an outer ring clamping assembly (3) for clamping the outer ring of the flange and an inner ring clamping assembly (4) for clamping the inner ring of the flange are provided on the workbench (2), a storage platform (22) for placing the flange is convexly provided on the workbench (2), the inner ring clamping assembly (4) and the storage platform (22) are arranged concentrically, and the radius of the storage platform (22) is smaller than the radius from the center of the flange to the position to be drilled.

2. A flange drilling device according to claim 1, characterized in that: The outer ring clamping assembly (3) includes an outer clamping plate (31) that can perform linear reciprocating motion along the radial direction of the flange, the bottom of the outer clamping plate (31) is fixedly connected to the sliding block (34), the workbench (2) is provided with a clearance groove (21) for the sliding block (34) to reciprocate, and a protective plate (32) is provided on the side of the outer clamping plate (31) close to the storage table (22), the protective plate (32) covers the upper part of the clearance groove (21), and the width of the protective plate (32) is greater than the width of the clearance groove (21), and the highest point of the upper surface of the protective plate (32) is lower than the upper surface of the storage table (22).

3. A flange drilling device according to claim 2, characterized in that: A screw rod (33) is arranged in the clearance groove (21), and both ends of the screw rod (33) are rotatably mounted on the clearance groove (21), and one end of the screw rod (33) is transmission-connected to a driving mechanism (35), and the sliding block (34) is threadedly sleeved on the screw rod (33), and the sliding block (34) is slidably matched with the clearance groove (21).

4. The flange drilling device according to claim 2, characterized in that: The cross-sectional structure of the protection plate (32) cut along the width direction of the clearance groove (21) is an arc-shaped structure or a conical structure with a high middle and low sides.

5. A flange drilling device according to claim 1 or 4, characterized in that: The inner ring clamping assembly (4) comprises a mounting seat (41), a plurality of inner clamping plates (43) telescopically connected to the mounting seat (41), and a control screw (42) for controlling the simultaneous telescoping of the plurality of inner clamping plates (43), wherein the plurality of inner clamping plates (43) are evenly distributed at circumferential intervals along the mounting seat (41).

6. The flange drilling device according to claim 5, characterized in that: The mounting seat (41) is provided with a threaded hole (412) and a receiving groove (411) which are connected from top to bottom. The inner diameter of the receiving groove (411) is larger than the inner diameter of the threaded hole (412). The threaded hole (412) is internally threadedly connected with a rod portion (422) of the control screw (42). One end of the rod portion (422) extends into the inner side of the receiving groove (411) and is rotatably connected with a tapered portion (423). The mounting seat (41) is provided with a plurality of sliding grooves corresponding to the inner clamping plate (43). The sliding grooves are connected with the receiving groove (411). A telescopic rod (431) is slidably connected in the sliding grooves. One end of the telescopic rod (431) contacts the outer surface of the tapered portion (423), and the other end is fixedly connected with the inner clamping plate (43).

7. The flange drilling device according to claim 6, characterized in that: The head (421) of the control screw rod (42) is fixedly connected to an end of the rod portion (422) away from the conical portion (423).

8. The flange drilling device according to claim 1, characterized in that: The drilling device comprises a support frame (7) fixed on a workbench (2), a mounting frame (6) slidably connected to the support frame (7) in a vertical direction, and a drilling assembly (5) slidably connected to the mounting frame (6) in a horizontal direction.

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