Punching device for flange machining

Abstract

The utility model discloses a punching device for flange processing, which belongs to the technical field of flange processing, and comprises a support box body, a clamping disc, a backing ring and a punching mechanism, the clamping disc is used for clamping a flange, the clamping disc is rotatably arranged on the support box body, the punching device is arranged above the clamping disc, the backing ring is padded between the clamping disc and the flange, and the punching mechanism is arranged above the clamping disc. The punching mechanism comprises a disc, a pre-drilling machine and a final drilling machine, the disc and the clamping disc are coaxially arranged, the pre-drilling machine and the final drilling machine can be movably arranged on the disc at the same speed in the radial direction of the disc, and the distance between the pre-drilling machine and the circle center of the disc and the distance between the final drilling machine and the circle center of the disc are equal. According to the punching device for flange machining, the flange does not need to be carried and re-clamped between the pre-drilling machine and the final drilling machine, labor force is saved, the machining efficiency is high, meanwhile, the pre-drilling machine and the final drilling machine can synchronously move at the same speed in the radial direction of the disc, and the punching requirements of different punching positions can be met.

Description

Technical Field

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

[0002] In the flange processing, drilling is an indispensable link. The drilling process is generally as follows: first, the flange to be drilled is fixed and clamped on the workbench to ensure its clamping stability, and then pre-drilling is performed on the end face of the flange to determine the drilling position and reduce the tangential and radial forces on the subsequent drilling drill bit, thereby reducing the processing load. After the pre-drilling is completed, the final drilling is performed according to the position of the pre-drilled hole. At this point, the mounting hole on the flange is processed.

[0003] In the above actual processing, a small drill bit is used for pre-drilling, while a large drill bit is used for final drilling. The large drill bit is used to expand the hole based on the pre-drilling. Therefore, after the user pre-drills the flange, the flange needs to be moved to another punching device with a large drill bit. This process is relatively complicated and requires the flange to be clamped and fixed again, which consumes a lot of labor and is not conducive to rapid processing. The punching efficiency needs to be improved. Utility Model Content

[0004] The technical problem to be solved by the utility model is: in the prior art, the pre-drilling and final drilling of flange holes require two processing platforms for processing, and the transportation and repeated clamping and fixing of the flanges consume a lot of labor, which is not conducive to rapid processing and the punching efficiency is low. Based on this, the utility model provides a punching device for flange processing that is easy to process and has high punching efficiency.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a punching device for flange processing, comprising a supporting box, a clamping plate, a gasket and a punching mechanism, the clamping plate is used to clamp the flange, the clamping plate is rotatably arranged on the supporting box, the punching device is arranged above the clamping plate, the gasket is cushioned between the clamping plate and the flange, the punching mechanism comprises a disc, a pre-drilling machine and a final drilling machine, the disc is coaxially arranged with the clamping plate, the pre-drilling machine and the final drilling machine are both movably arranged on the disc at the same speed along the radial direction of the disc, and the distances between the pre-drilling machine and the final drilling machine and the center of the disc are equal.

[0006] Furthermore, the pre-drilling machine includes a pre-drilling machine body and a first cylinder, the cylinder body of the first cylinder can move radially relative to the disc, and the final drilling machine includes a final drilling machine body and a second cylinder, the cylinder body of the second cylinder can move radially relative to the disc.

[0007] Furthermore, the disc is provided with a first slide groove and a second slide groove both arranged along the radial direction of the disc, the pre-drilling machine moves relative to the disc along the first slide groove, and the final drilling machine moves relative to the disc along the second slide groove.

[0008] Furthermore, a sliding member is fixedly installed on the top of the cylinder body of the first cylinder and the second cylinder, and the sliding member includes a bottom plate, a top plate and a connecting column connected between the bottom plate and the top plate, the bottom plate is in contact with the lower surface of the disc, the top plate is in contact with the upper surface of the disc, and the connecting column can slide through the first slide groove and the second slide groove.

[0009] Furthermore, the connecting column is a cylindrical structure, and the width of the first sliding groove and the second sliding groove is the same as the diameter of the connecting column.

[0010] Furthermore, a fixing seat is fixedly connected to the upper surface of the disc, a stud is rotatably mounted on the fixing seat, the first slide groove and the second slide groove are symmetrically located on both sides of the stud, a slider is slidably provided on the disc, the stud is threadedly connected to the slider, a connecting rod is provided between the two sliding parts and the slider, one end of the connecting rod is hinged to the sliding part, and the other end of the connecting rod is hinged to the slider.

[0011] Furthermore, a groove is provided on the upper surface of the chuck, and a three-jaw chuck is installed in the groove. The claws of the three-jaw chuck extend upward to the outside of the groove, and the protruding side of the flange faces downward and is sleeved on the outside of the claws. There is a gap between the lower end surface of the flange and the upper surface of the chuck.

[0012] Furthermore, an annular groove coaxial with the chuck disc is provided on the upper surface of the chuck disc, and the gasket is fitted in the annular groove.

[0013] Furthermore, a driving motor for driving the clamping disc to rotate is fixedly installed in the supporting box body, a connecting plate is fixedly connected to the upper surface of the supporting box body, and the disc is fixedly connected to the top end of the connecting plate.

[0014] The beneficial effects of the utility model are as follows: the punching device for flange processing of the utility model installs a pre-drilling machine and a final drilling machine on a disc at the same time, the pre-drilling machine is used for pre-drilling processing, and the final drilling machine is used for expanding the pre-drilled holes to finally form target through holes. Compared with the traditional processing method, there is no need to transport and transfer the flange and repeatedly clamp and fix it, which greatly saves labor and improves processing efficiency. In addition, the pre-drilling machine and the final drilling machine can move synchronously and at the same speed along the radial direction of the disc, ensuring that the drill bits of the pre-drilling machine and the final drilling machine are always on the same circumference, which can adapt to the drilling needs of different drilling positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is a three-dimensional diagram of the punching device for flange processing of the utility model;

[0017] Figure 2 yes Figure 1 A three-dimensional view of the punching device for flange processing from another perspective;

[0018] Figure 3 yes Figure 1 A front view of a punching device for flange processing shown;

[0019] Figure 4 yes Figure 3 A cross-sectional view of the punching device for flange processing along AA is shown;

[0020] Figure 5 yes Figure 1 A three-dimensional diagram of a punching mechanism in a punching device for flange processing shown;

[0021] Figure 6 yes Figure 2 A three-dimensional diagram of the punching mechanism in the punching device for flange processing is shown.

[0022] In the figure: 10, flange, 1, supporting box, 11, connecting plate, 2, clamping plate, 21, groove, 210, three-jaw chuck, 22, annular groove, 3, gasket, 4, punching mechanism, 41, disc, 411, first slide groove, 412, second slide groove, 413, fixed seat, 414, stud, 415, slider, 416, connecting rod, 417, guide groove, 42, pre-drilling machine, 421, pre-drilling machine body, 422, first cylinder, 43, final drilling machine, 431, final drilling machine body, 432, second cylinder, 44, sliding part, 441, bottom plate, 442, top plate, 443, connecting column. DETAILED DESCRIPTION

[0023] Now the utility model is described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the utility model in a schematic manner, so it only shows the components related to the utility model.

[0024] See also Figure 1-Figure 6The utility model provides a punching device for flange processing, comprising a supporting box 1, a clamping plate 2, a gasket 3 and a punching mechanism 4. The clamping plate 2 is rotatably mounted on the supporting box 1. The clamping plate 2 is used to clamp a flange 10 to be punched. The gasket 3 is padded between the clamping plate 2 and the flange 10. The punching device 4 is arranged above the clamping plate 2. During the punching process, the flange 10 is fixedly clamped on the clamping plate 2, and the gasket 3 is padded below the part to be punched on the flange 10 to support the flange 10. Then, the punching mechanism 4 is started to move downward, so as to punch a hole on the end face of the flange 10.

[0025] The chuck plate 2 is a disc-shaped structure, and a groove 21 is formed on the upper surface of the chuck plate 2. A three-jaw chuck 210 is installed in the groove 21. The three-jaw chuck 210 is coaxially arranged with the chuck plate 2, and the claws of the three-jaw chuck 210 extend upward to the outside of the groove 21. When clamping, the convex side of the flange 10 is facing downward and sleeved on the outside of the claws, and the three-jaw chuck 210 is started to expand the claws outward, and finally the flange 10 is clamped and fixed on the chuck plate 2. At this time, the flange 10 and the chuck plate 2 are in a coaxial position, realizing the self-centering function.

[0026] The gasket 3 is an annular structure with two ends through. The gasket 3 is coaxially arranged with the chuck 2 and sleeved on the outside of the claw. When clamping the flange 10, the gasket 3 is first installed on the chuck 2, and then the protruding end of the flange 10 is sleeved on the outside of the claw. There is a gap between the lower end surface of the flange 10 and the upper surface of the chuck 2 to ensure that the upper surface of the gasket 3 can contact the flange 10, thereby supporting the edge of the flange 10 to prevent the flange 10 from being deformed due to force on one side during the drilling process, and the processing reliability is high. At the same time, the position of the gasket 3 is staggered with the drill bit of the punching mechanism 4 to prevent the drill bit from contacting the gasket 3 when working. In a specific embodiment, an annular groove 22 coaxial with the chuck 2 is opened on the upper surface of the chuck 2, and the gasket 3 is installed in the annular groove 22 to position the installation of the gasket 3. It can be understood that in other embodiments, there can be multiple annular grooves 22, which are coaxially arranged. When installing the gasket 3, the user can select one of the annular grooves 22 according to the different drilling positions of the flange 10 to install the gasket 3 of the corresponding size to ensure that the drill bit avoids the gasket 3.

[0027] As a preferred embodiment, a driving motor (not shown) is fixedly installed in the supporting box body 1, and the output shaft of the driving motor can be rotatably passed through the inner top wall of the supporting box body 1 and is fixedly connected to the clamping disk 2. In this way, when the driving motor is started, the clamping disk 2 can be driven to rotate together with the flange 10 to realize the indexing drilling of the end face of the flange 10.

[0028] The punching mechanism 4 includes a disc 41, a pre-drilling machine 42 and a final drilling machine 43. The disc 41 is coaxially arranged with the chuck 2. The pre-drilling machine 42 and the final drilling machine 43 are both arranged on the disc 41 along the radial direction of the disc 41 and can move at the same speed. The distances from the pre-drilling machine 42 and the final drilling machine 43 to the center of the disc 41 are equal. Among them, the pre-drilling machine 42 is used for pre-drilling, and the final drilling machine 43 is used for final drilling.

[0029] During operation, the pre-drilling machine 42 is first controlled to move downward to leave pre-drilled holes on the flange 10, and then the chuck 2 is controlled to rotate to perform graduated pre-drilling on the flange 10. At this time, the flange 10 has a plurality of evenly distributed pre-drilled holes. Next, the pre-drilling machine 42 is controlled to move upward to reset it, and then the final drilling machine 43 is controlled to move downward to expand each pre-drilled hole one by one, and finally a through hole is formed on the flange 10. Similarly, by rotating the chuck 2, the graduated final drilling can be performed on the flange 10. At this time, the flange 10 has a plurality of evenly distributed through holes.

[0030] As a preferred embodiment, the pre-drilling machine 42 includes a pre-drilling machine body 421 and a first cylinder 422. The cylinder body of the first cylinder 422 can move along the radial direction of the disk 41 relative to the disk 41. The extended end of the first cylinder 422 is fixedly connected to the pre-drilling machine body 421. By controlling the telescopic action of the first cylinder 422, the pre-drilling machine body 421 can be controlled to move up and down to achieve the processing of the pre-drilled hole. The final drilling machine 43 includes a final drilling machine body 431 and a second cylinder 432. The cylinder body of the second cylinder 422 can move along the radial direction of the disk 41 relative to the disk 41. The extended end of the second cylinder 432 is fixedly connected to the final drilling machine body 431. By controlling the telescopic action of the second cylinder 432, the final drilling machine body 431 can be controlled to move up and down to achieve the processing of the through hole. In the pre-drilling and final drilling processes, there is no need to carry and repeatedly clamp the flange 10, which greatly saves labor and improves processing efficiency. At the same time, the projection position of the drill bit on the pre-drilling machine body 421 and the drill bit on the final drilling machine body 431 on the surface to be drilled of the flange 10 is equal to the center distance of the flange 10, thereby ensuring the consistency of the drilling positions of the two times and high drilling accuracy. In addition, the pre-drilling machine 42 and the final drilling machine 43 move at the same speed on the disc 41 in the radial direction, and the distance from the drill bit to the center of the flange 10 can be changed, so as to adapt to the drilling needs of different drilling positions. In addition, the pre-drilling machine body 421 and the final drilling machine body 431 both include a drill bit and a motor for driving the drill bit to rotate, and the outer diameter of the drill bit on the pre-drilling machine body 421 is smaller than the outer diameter of the drill bit on the final drilling machine body 431.

[0031] As a preferred embodiment, a first slide groove 411 and a second slide groove 412 are provided on the disc 41. The first slide groove 411 and the second slide groove 412 are both arranged along the radial direction of the disc 41, and the first slide groove 411 and the second through groove 422 both pass through the upper and lower surfaces of the disc 41. The pre-drilling machine 42 moves relative to the disc 41 along the first slide groove 411, and the final drilling machine 43 moves relative to the disc 41 along the second slide groove 412.

[0032] In this embodiment, a sliding member 44 is fixedly installed on the top of the cylinder body of the first cylinder 422 and the second cylinder 432. The sliding member 44 includes a bottom plate 441, a top plate 442 and a connecting column 443. The connecting column 443 is vertically fixedly connected between the bottom plate 441 and the top plate 442. The bottom plate 441 fits the lower surface of the disc 41, and the top plate 442 fits the upper surface of the disc 41. The connecting column 443 is a cylindrical structure, and the connecting column 443 can slide through the first slide groove 411 and the second slide groove 412. When in use, the connecting column 443 is slidable along the first slide groove 411 and the second slide groove 412 to adjust the positions of the pre-drilling machine 42 and the final drilling machine 43. In addition, the groove width of the first slide groove 411 and the second slide groove 412 is the same as the diameter of the connecting column 443, so that the connecting column 443 can contact the two opposite groove walls of the first slide groove 411 and the second slide groove 412 to avoid the connecting column 443 from moving in the first slide groove 411 and the second slide groove 412, thereby ensuring the activity stability of the pre-drilling machine 42 and the final drilling machine 43.

[0033] As a preferred embodiment, a fixing seat 413 is fixedly connected to the upper surface of the disk 41, and a stud 414 is rotatably installed on the fixing seat 413 along the radial direction of the disk 41. The first slide groove 411 and the second slide groove 412 are symmetrically located on both sides of the stud 414. A slider 415 is also slidably arranged on the upper surface of the disk 41. The stud 414 is threadedly connected to the slider 415. A connecting rod 416 is connected between the two sliding members 44 and the slider 415. One end of the connecting rod 416 is hinged to the sliding member 44, and the other end of the connecting rod 416 is hinged to the slider 415. In this way, when the user rotates the stud 414, the slider 415 can be driven to slide, so that under the push and pull action of the connecting rod 416, the pre-drilling machine 42 and the final drilling machine 43 move synchronously and at the same speed along their respective slide grooves. Further, a guide groove 417 is opened on the upper surface of the disk 41, and the slider 415 is slidably connected to the guide groove 417.

[0034] In addition, a connecting plate 11 is vertically fixedly connected to the upper surface of the supporting box body 1 , and the disc 41 is fixedly connected to the top end of the connecting plate 11 .

[0035] The punching device for flange processing of the utility model installs a pre-drilling machine 42 and a final drilling machine 43 on a disc 41 at the same time. The pre-drilling machine 42 is used for pre-drilling processing, and the final drilling machine 43 is used for expanding the pre-drilled hole to finally form a target through hole. Compared with the traditional processing method, there is no need to transport and transfer the flange 10 and repeatedly clamp and fix it, which greatly saves labor and improves processing efficiency. In addition, the pre-drilling machine 42 and the final drilling machine 43 can move synchronously and at the same speed along the radial direction of the disc 41, ensuring that the drill bits of the pre-drilling machine 42 and the final drilling machine 43 are always on the same circumference, which can adapt to the drilling needs of different drilling positions.

[0036] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without departing from the scope of the utility model through the above description. The technical scope of this utility model is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A punching device for flange processing, comprising a supporting box, a clamping plate, a gasket and a punching mechanism, wherein the clamping plate is used to clamp the flange, the clamping plate is rotatably arranged on the supporting box, and the punching device is arranged above the clamping plate, characterized in that: The gasket is placed between the chuck and the flange, the punching mechanism comprises a disc, a pre-drill and a final drill, the disc is coaxially arranged with the chuck, the pre-drill and the final drill are both movably arranged on the disc at the same speed along the radial direction of the disc, and the distances between the pre-drill and the final drill and the center of the disc are equal.

2. The flange processing punching device according to claim 1, characterized in that: The pre-drilling machine includes a pre-drilling machine body and a first cylinder, the cylinder body of the first cylinder can move radially relative to the disc along the disc, and the final drilling machine includes a final drilling machine body and a second cylinder, the cylinder body of the second cylinder can move radially relative to the disc along the disc.

3. The flange processing punching device according to claim 2, characterized in that: The disc is provided with a first slide groove and a second slide groove both arranged along the radial direction of the disc. The pre-drilling machine moves relative to the disc along the first slide groove, and the final drilling machine moves relative to the disc along the second slide groove.

4. The flange processing punching device according to claim 3, characterized in that: A sliding member is fixedly installed on the top of the cylinder body of the first cylinder and the second cylinder. The sliding member includes a bottom plate, a top plate and a connecting column connected between the bottom plate and the top plate. The bottom plate fits with the lower surface of the disc, and the top plate fits with the upper surface of the disc. The connecting column can slide through the first slide groove and the second slide groove.

5. The flange processing punching device according to claim 4, characterized in that: The connecting column is a cylindrical structure, and the width of the first sliding groove and the second sliding groove is the same as the diameter of the connecting column.

6. The flange processing punching device according to claim 4, characterized in that: A fixing seat is fixedly connected to the upper surface of the disc, a stud is rotatably mounted on the fixing seat, the first slide groove and the second slide groove are symmetrically located on both sides of the stud, a slider is slidably provided on the disc, the stud is threadedly connected to the slider, a connecting rod is provided between the two sliding parts and the slider, one end of the connecting rod is hinged to the sliding part, and the other end of the connecting rod is hinged to the slider.

7. The flange processing punching device according to claim 1, characterized in that: A groove is provided on the upper surface of the clamping disk, and a three-jaw chuck is installed in the groove. The claws of the three-jaw chuck extend upward to the outside of the groove, and the protruding side of the flange faces downward and is sleeved on the outside of the claws. There is a gap between the lower end surface of the flange and the upper surface of the clamping disk.

8. The flange processing punching device according to claim 7, characterized in that: An annular groove coaxial with the clamping disc is provided on the upper surface of the clamping disc, and the gasket is fitted in the annular groove.

9. The flange processing punching device according to claim 7, characterized in that: A driving motor for driving the clamping disk to rotate is fixedly installed in the supporting box body, a connecting plate is fixedly connected to the upper surface of the supporting box body, and the disc is fixedly connected to the top end of the connecting plate.

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