CN116252171A

CN116252171A - Flange fastening device

Info

Publication number: CN116252171A
Application number: CN202310539021.XA
Authority: CN
Inventors: 王长玉; 张卫华; 王杰; 张冬萍; 李林
Original assignee: Jiangsu Jiajie Special Screw Co ltd
Current assignee: Jiangsu Jiajie Special Screw Co ltd
Priority date: 2023-05-15
Filing date: 2023-05-15
Publication date: 2023-06-13
Anticipated expiration: 2043-05-15
Also published as: CN116252171B

Abstract

The invention discloses a flange fastening device, and belongs to the technical field of flange connection; comprises a workbench, a clamping mechanism, a moving mechanism and a fastening mechanism; the clamping mechanisms comprise two clamping blocks which are symmetrically arranged, a lower supporting block is arranged below the two clamping blocks, and the clamping blocks and the lower supporting blocks are used for clamping a shaft connected with a flange; the moving mechanism is arranged on the workbench and is used for driving the two clamping mechanisms to move; the fastening mechanism comprises two transposition gears which are symmetrically arranged, wherein the transposition gears are provided with a first annular groove and a second annular groove, one annular groove is provided with a rotating head, the other annular groove is provided with a clamping head, and the clamping head and the rotating head are respectively arranged on the two fastening components. The flange fastening device disclosed by the invention is used for fastening the flange through the clamping mechanism, the moving mechanism and the fastening mechanism, and is simple in structure and convenient to operate.

Description

Flange fastening device

Technical Field

The invention belongs to the technical field of flange connection, and particularly relates to a flange fastening device.

Background

The flange is a common part for connecting pipes and shafts, and when the flange is used for connecting pipes, shafts and other equipment, the flange is firstly fixed on one flange plate respectively, then the two flange plates are aligned, and the flange plates are fixed through bolts and nuts, so that the connection and the fixation of pipe fittings or other equipment are completed.

Chinese patent publication No. CN108858060a discloses a flange fastening device, including fastening external member, power device, nut, the cover is equipped with a fastening external member that matches with the nut size on every nut, and every fastening external member is connected with power device, and fastening external member includes swivel nut and hydraulic stem, and power device includes hydraulic system and pressure subassembly etc.. Although this invention is capable of accomplishing the fastening of the flange, it requires the use of large mechanical structures such as hydraulic systems and is not adaptable to different sized flanges and pipe or other equipment to which the flange is attached. In view of the above problems, the present invention provides a fastening device for a flange.

Disclosure of Invention

Aiming at the technical problems, the invention adopts the following technical scheme: a flange fastening device comprises a workbench, a clamping mechanism, a moving mechanism and a fastening mechanism.

The clamping mechanisms are arranged at the upper part of the workbench along the long side direction of the workbench, the clamping mechanisms are connected with the moving mechanism, each clamping mechanism comprises two clamping blocks which are symmetrically arranged, a lower supporting block is arranged below each two clamping blocks, each clamping block and each lower supporting block are used for clamping a flange connected shaft, each two clamping blocks are respectively connected with two push-pull assemblies, and each lower supporting block is connected with one push assembly.

The moving mechanism is arranged on the workbench and is used for driving the two clamping mechanisms to move.

The fastening mechanism comprises two transposition gears which are symmetrically arranged, wherein the transposition gears are provided with a first annular groove and a second annular groove, the second annular groove is positioned on one side close to the center of the workbench, one annular groove is provided with a rotating head, the other annular groove is provided with a clamping head, and the clamping head and the rotating head are respectively arranged on the two fastening components.

Further, the push-pull assembly comprises a connecting block, one end of the connecting block is fixedly arranged on the clamping block, the other end of the connecting block is rotationally connected with one end of the pull rod, the other end of the pull rod is rotationally connected with the upper end of the rotating arm, the rotating arm is rotationally arranged on the support, one end of the guide rod is fixedly arranged on the support, and the other end of the guide rod is in sliding fit with the sliding block on the connecting block.

Further, the push-pull assembly also comprises a rotating rod, one end of the rotating rod is fixedly arranged on the rotating arm, and the other end of the rotating rod is connected with the push assembly.

Further, the pushing component comprises a lifting shaft fixedly arranged below the lower supporting block, the lifting shaft is fixedly arranged on the vertical shaft in a coaxial manner, a sliding cylinder is sleeved on the outer ring of the lifting shaft, the sliding cylinder is in sliding fit along the central axis direction of the lifting shaft, and two sides of the sliding cylinder are respectively connected with the two rotating rods.

Further, the pushing assembly further comprises a rack, the rack is fixedly connected with the sliding cylinder, one side, close to the lifting shaft, of the rack is meshed with the central gear, and the central gear is meshed with a plurality of meshing teeth which are linearly arranged on the lifting shaft.

Further, fixture still include bottom plate, cylinder one, bottom plate and mobile mechanism be connected and bottom plate slidable mounting in the top of workstation, bottom plate and support, vertical axis fixed connection, and be provided with reset spring between bottom plate and the lift axle, reset spring cover establish the outer lane at the vertical axis, cylinder one rotate and install on a rotating arm, the output shaft of cylinder one is connected with the one end of push rod, the push rod other end articulated with another rotating arm.

Further, the fastening mechanism also comprises two symmetrically arranged connecting cylinders which are respectively in rotary fit with the annular grooves, two sides of each connecting cylinder are respectively fixedly arranged with two racks, one rack is slidably arranged on the vertical rod, the other rack is in threaded fit with the screw rod II, the vertical rod is fixedly arranged above the workbench, the screw rod II is fixedly arranged on the workbench and is fixedly connected with the output shaft of the motor II, the transposition gear is in rotary fit with the connecting cylinders, the transposition gear is in meshed fit with the driving gear, the driving gear is fixedly connected with the output shaft of the driving motor, and the driving motor is fixedly arranged on the rack.

Further, the fastening assembly comprises a right-angle motor, the right-angle motor is fixedly arranged on an arc-shaped block, the arc-shaped block is fixedly arranged on a second annular groove, a second cylinder is fixedly arranged on an output shaft of the right-angle motor, one second cylinder is fixedly connected with the rotating head, and the other second cylinder is fixedly connected with the clamping head.

Further, the moving mechanism comprises a guiding optical axis and a first screw rod which are rotatably arranged below the workbench, the guiding optical axis is in sliding fit with the bottoms of the two bottom plates, the first screw rod is in threaded fit with the bottoms of the two bottom plates, the first screw rod is fixedly connected with an output shaft of the first motor, and the first motor is fixedly arranged below the workbench.

Compared with the prior art, the invention has the beneficial effects that: (1) The flange is fastened through the clamping mechanism, the moving mechanism and the fastening mechanism, so that the flange clamping device is simple in structure and convenient to operate; (2) The clamping mechanism can adapt to different sizes when fixing the long shaft connected with the flange, has strong practicability and can meet the use requirement; (3) The fastening mechanism can fasten around the flange when fastening the flange, and the direction of the flange does not need to be adjusted.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention.

Fig. 2 is a schematic view of the rest of the structure of the present invention after omitting the working table.

Fig. 3 is a schematic structural view of the clamping mechanism.

Fig. 4 is a partial structural cross-sectional view of the clamping mechanism.

Fig. 5 is a schematic view of a partial enlarged structure at A1 in fig. 4.

Fig. 6 is a schematic view of a part of the clamping mechanism.

Fig. 7 is a schematic diagram of a part of the clamping mechanism.

Fig. 8 is a schematic view of the structure of the fastening mechanism.

Fig. 9 is a schematic view of a part of the structure of the fastening mechanism.

Fig. 10 is a schematic view of a partially enlarged structure at A2 in fig. 9.

FIG. 11 is a schematic view of the long axis and flange structure.

Reference numerals: 1-a workbench; 2-a clamping mechanism; 201-a bottom plate; 202-a bracket; 203-a rotating arm; 204-rotating rod; 205-pull rod; 206-connecting blocks; 207-sliding blocks; 208-clamping blocks; 209—a guide bar; 210-a lower support block; 211-connecting rods; 212-a slide cylinder; 213-lifting shaft; 214-vertical axis; 215-a return spring; 216-sun gear; 217-rack; 218-meshing teeth; 219-cylinder one; 220-pushing rod; 3-a movement mechanism; 301-motor one; 302-lead screw I; 303-guiding the optical axis; 4-a fastening mechanism; 401-shelves; 402-connecting the cylinders; 403-transposition gear; 404-annular groove one; 405-annular groove II; 406-a drive gear; 407-a drive motor; 408-a second lead screw; 409-motor two; 410-vertical bars; 411-arc blocks; 412-right angle motor; 413-cylinder two; 414-a swivel; 415-a clamping head; 5-long axis; and 6-a flange.

Detailed Description

The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.

For the purpose of better illustrating embodiments of the present invention, certain elements of the drawings may be omitted, enlarged or reduced in size, and not to represent the actual product size, as it would be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Examples: the flange fastening device shown in fig. 1-11 comprises a workbench 1, a clamping mechanism 2, a moving mechanism 3 and a fastening mechanism 4.

The clamping mechanisms 2 are two, the two clamping mechanisms 2 are symmetrically arranged above the workbench 1 along the long side direction of the workbench 1, the clamping mechanisms 2 are connected with the moving mechanism 3, each clamping mechanism 2 comprises two clamping blocks 208 which are symmetrically arranged, a lower supporting block 210 is arranged below each clamping block 208, each clamping block 208 and each lower supporting block 210 are used for clamping a flange-connected shaft, each clamping block 208 is connected with two push-pull assemblies, and each lower supporting block 210 is connected with one push assembly.

The moving mechanism 3 is mounted on the workbench 1, and the moving mechanism 3 is used for driving the two clamping mechanisms 2 to move.

The fastening mechanism 4 comprises two transposition gears 403 which are symmetrically arranged, wherein a first annular groove 404 and a second annular groove 405 are arranged on the transposition gears 403, the second annular groove 405 is positioned on one side close to the center of the workbench 1, a rotating head 414 is arranged on one second annular groove 405, a clamping head 415 is arranged on the other second annular groove 405, and the clamping head 415 and the rotating head 414 are respectively arranged on the two fastening components.

The push-pull assembly comprises a connecting block 206, one end of the connecting block 206 is fixedly arranged on a clamping block 208, the other end of the connecting block 206 is rotationally connected with one end of a pull rod 205, the other end of the pull rod 205 is rotationally connected with the upper end of a rotating arm 203, the rotating arm 203 is rotationally arranged on a support 202, one end of a guide rod 209 is fixedly arranged on the support 202, and the other end of the guide rod 209 is in sliding fit with a sliding block 207 on the connecting block 206.

The push-pull assembly further comprises a rotating rod 204, one end of the rotating rod 204 is fixedly arranged on the rotating arm 203, and the other end of the rotating rod 204 is connected with the push assembly.

The pushing assembly comprises a lifting shaft 213 fixedly arranged below the lower supporting block 210, the lifting shaft 213 is fixedly arranged on a vertical shaft 214 in a coaxial manner, a sliding cylinder 212 is sleeved on the outer ring of the lifting shaft 213, the sliding cylinder 212 can be in sliding fit along the central axis direction of the lifting shaft 213, and two sides of the sliding cylinder 212 are respectively connected with the two rotating rods 204.

The pushing assembly further comprises a rack 217, the rack 217 is fixedly connected with the slide cylinder 212, one side, close to the lifting shaft 213, of the rack 217 is in meshed fit with a central gear 216, and the central gear 216 is in meshed fit with a plurality of meshed teeth 218 which are linearly arranged on the lifting shaft 213.

The clamping mechanism 2 further comprises a bottom plate 201 and a first air cylinder 219, the bottom plate 201 is connected with the moving mechanism 3, the bottom plate 201 is slidably arranged above the workbench 1, the bottom plate 201 is fixedly connected with the support 202 and the vertical shaft 214, a reset spring 215 is arranged between the bottom plate 201 and the lifting shaft 213, the reset spring 215 is sleeved on the outer ring of the vertical shaft 214, the first air cylinder 219 is rotatably arranged on one rotating arm 203, an output shaft of the first air cylinder 219 is connected with one end of the pushing rod 220, and the other end of the pushing rod 220 is hinged with the other rotating arm 203.

The fastening mechanism 4 further comprises two symmetrically arranged connecting cylinders 402, the two connecting cylinders 402 are respectively in running fit with the first annular groove 404, two sides of the connecting cylinders 402 are respectively and fixedly installed with two frames 401, one frame 401 is slidably installed on a vertical rod 410, the other frame 401 is in threaded fit with a second screw rod 408, the vertical rod 410 is fixedly installed above the workbench 1, the second screw rod 408 is fixedly connected with an output shaft of a second motor 409 fixedly installed on the workbench 1, the transposition gear 403 is in running fit with the connecting cylinder 402, the transposition gear 403 is in meshed fit with a driving gear 406, the driving gear 406 is fixedly connected with an output shaft of a driving motor 407, and the driving motor 407 is fixedly installed on the frame 401.

The fastening assembly comprises a right-angle motor 412, the right-angle motor 412 is fixedly arranged on an arc-shaped block 411, the arc-shaped block 411 is fixedly arranged on a second annular groove 405, a second cylinder 413 is fixedly arranged on an output shaft of the right-angle motor 412, one second cylinder 413 is fixedly connected with a rotating head 414, and the other second cylinder 413 is fixedly connected with a clamping head 415.

The moving mechanism 3 comprises a guiding optical axis 303 and a first lead screw 302 which are rotatably arranged below the workbench 1, the guiding optical axis 303 is in sliding fit with the bottoms of the two bottom plates 201, the first lead screw 302 is in threaded fit with the bottoms of the two bottom plates 201, the first lead screw 302 is fixedly connected with an output shaft of a first motor 301, and the first motor 301 is fixedly arranged below the workbench 1.

Working principle: when fastening the flanges 6, the long shaft 5 connected to the flanges 6 is first transported above the two lower supporting blocks 210 by a device having a transporting function, and it should be noted that when fastening the two flanges 6, the two flanges 6 need to be disposed opposite each other, that is, both flanges 6 are disposed toward the frame 401, which is well known to those skilled in the art.

After the long shaft 5 is moved above the lower supporting block 210, the extending ends of the two first air cylinders 219 are respectively extended, and at this time, the extending ends of the first air cylinders 219 push the push rod 220, so that the push rod 220 moves to a side close to the other rotating arm 203, and thus the push rod 220 pushes the other rotating arm 203 which is arranged opposite to the rotating arm 203 where the first air cylinder 219 is located, at this time, the lower ends of the two rotating arms 203 are separated from each other, and at the same time, the rotating arms 203 do circular motion around the bracket 202, that is, the upper ends of the rotating arms 203 are close to each other.

When the upper ends of the rotating arms 203 approach each other, the pull rod 205 rotatably connected to the upper ends of the rotating arms 203 pushes the clamping blocks 208 to the side approaching the lower support block 210, and at this time, the two symmetrically arranged clamping blocks 208 approach each other, and the two clamping blocks 208 finally approach and abut against the outer surface of the long shaft 5.

When the rotating arm 203 rotates around the bracket 202, the rotating rod 204 fixedly connected to the rotating arm 203 rotates along with the rotating arm 203, the rotating rod 204 pulls the connecting rod 211 when rotating, the sliding tube 212 rotatably connected to the connecting rod 211 is pulled to slide downwards along the lifting shaft 213 through the connecting rod 211, the rack 217 moves downwards along with the sliding tube 212 due to the fixed connection of the rack 217 and the sliding tube 212, the rack 217 is meshed with the central gear 216 rotatably mounted on the workbench 1, so that the central gear 216 rotates anticlockwise (as shown in fig. 7), the central gear 216 is meshed with the meshing teeth 218 on the lifting shaft 213, so that the anticlockwise rotating central gear 216 pushes the lifting shaft 213 through the meshing teeth 218, the lifting shaft 213 slides upwards along the vertical shaft 214, the lower supporting block 210 fixedly mounted on the lifting shaft 213 also moves upwards, the lower supporting block 210 gradually approaches the long shaft 5 above the lower supporting block 210, and finally the lower supporting block 210 is tightly attached to the outer wall of the long shaft 5, the reset spring 215 is stretched in the process, and the reset spring 215 is used for assisting the reset of the lifting shaft 213. At this time, the two clamping blocks 208 and one lower support block 210 fix the outer wall of the long shaft 5, thereby completing the fixation of the long shaft 5. It should be noted that, for long shafts 5 with different diameters, the distance moved by the clamping block 208 and the lower support block 210 is also different, and only the extension distance of the extension end of the first cylinder 219 needs to be controlled.

After the two long shafts 5 are fixed, the first motor 301 is started, the first screw 302 fixedly connected with the output shaft of the first motor 301 rotates, the first screw 302 is in threaded fit with the two symmetrically arranged bottom plates 201, and the two bottom plates 201 are in sliding fit with the guide optical axis 303, so that the two bottom plates 201 slide along the guide optical axis 303 towards each other, and the two flanges 6 are close to each other.

According to the long shafts 5 and the flanges 6 with different diameters, the heights of the two transposition gears 403 can be specifically adjusted, specifically, the second motor 409 is started, so that the output shaft of the second motor 409 drives the second screw 408 to rotate, the rack 401 is in threaded fit with the second screw 408, and the second screw 408 is in sliding fit with the vertical rod 410 at the same time, so that the actual height of the transposition gears 403 can be adjusted by controlling the forward and backward rotation of the second motor 409.

After the transposition gear 403 completes adjustment, the flanges 6 approaching each other respectively pass through the connecting cylinder 402 and the transposition gear 403 which are positioned on the same side, and the two flanges 6 are finally attached to each other, at the moment, the driving motor 407 is started, so that the output shaft of the driving motor 407 drives the driving gear 406 to rotate, and the driving gear 406 is meshed with the transposition gear 403, so that the transposition gear 403 rotates on the connecting cylinder 402, the arc-shaped block 411 fixedly arranged on the annular groove two 405 rotates, and the arc-shaped block 411 rotates to adjust the positions of the rotating head 414 and the clamping head 415, so that the flanges 6 can be fastened.

When the rotating head 414 and the clamping head 415 move to the fastening position, the second air cylinder 413 is started, the second air cylinder 413 is enabled to respectively adjust the extending positions of the rotating head 414 and the clamping head 415, meanwhile, the rotating head 414 is enabled to cover one end of a bolt used for fastening the flange 6, the clamping head 415 is enabled to clamp a nut used for fastening the flange 6, then the right-angle motor 412 is started, an output shaft of the right-angle motor 412 drives the second air cylinder 413 to rotate, and therefore the rotating head 414 and the clamping head 415 rotate in two different directions, and accordingly installation of the bolt and the nut is completed, and fastening of the flange 6 is completed. It should be noted that, when fastening the flange 6, the fixing holes on the flange 6 should be fastened alternately, which helps to balance the stress of the flange 6.

Claims

1. A flange fastening device comprising a table (1), characterized in that: the device also comprises a clamping mechanism (2), a moving mechanism (3) and a fastening mechanism (4);

the two clamping mechanisms (2) are symmetrically arranged above the workbench (1) along the long side direction of the workbench (1), the clamping mechanisms (2) are connected with the moving mechanism (3), the clamping mechanisms (2) comprise two clamping blocks (208) which are symmetrically arranged, lower supporting blocks (210) are arranged below the two clamping blocks (208), the clamping blocks (208) and the lower supporting blocks (210) are used for clamping a flange-connected shaft, the two clamping blocks (208) are respectively connected with two push-pull assemblies, and the lower supporting blocks (210) are connected with the pushing assembly;

the moving mechanism (3) is arranged on the workbench (1), and the moving mechanism (3) is used for driving the two clamping mechanisms (2) to move;

the fastening mechanism (4) comprises two transposition gears (403) which are symmetrically arranged, wherein the transposition gears (403) are provided with a first annular groove (404) and a second annular groove (405), the second annular groove (405) is positioned on one side close to the center of the workbench (1), a rotating head (414) is arranged on the second annular groove (405), a clamping head (415) is arranged on the second annular groove (405), and the clamping head (415) and the rotating head (414) are respectively arranged on the two fastening components.

2. A flange fastening device according to claim 1, wherein: the push-pull assembly comprises a connecting block (206), one end of the connecting block (206) is fixedly arranged on a clamping block (208), the other end of the connecting block (206) is rotationally connected with one end of a pull rod (205), the other end of the pull rod (205) is rotationally connected with the upper end of a rotating arm (203), the rotating arm (203) is rotationally arranged on a support (202), one end of a guide rod (209) is fixedly arranged on the support (202), and the other end of the guide rod (209) is in sliding fit with a sliding block (207) on the connecting block (206).

3. A flange fastening device according to claim 2, wherein: the push-pull assembly further comprises a rotating rod (204), one end of the rotating rod (204) is fixedly arranged on the rotating arm (203), and the other end of the rotating rod (204) is connected with the push assembly.

4. A flange fastening device according to claim 3, wherein: the pushing assembly comprises a lifting shaft (213) fixedly arranged below the lower supporting block (210), the lifting shaft (213) is fixedly arranged on a vertical shaft (214) in a coaxial manner, a sliding cylinder (212) is sleeved on the outer ring of the lifting shaft (213), the sliding cylinder (212) is slidably matched along the central axis direction of the lifting shaft (213), and two sides of the sliding cylinder (212) are respectively connected with two rotating rods (204).

5. A flange fastening device according to claim 4, wherein: the pushing assembly further comprises a rack (217), the rack (217) is fixedly connected with the slide cylinder (212), one side, close to the lifting shaft (213), of the rack (217) is meshed with the central gear (216), and the central gear (216) is meshed with a plurality of meshing teeth (218) which are linearly arranged on the lifting shaft (213).

6. A flange fastening device according to claim 5, wherein: the clamping mechanism (2) further comprises a bottom plate (201) and a first cylinder (219), the bottom plate (201) is connected with the moving mechanism (3) and is slidably mounted above the workbench (1), the bottom plate (201) is fixedly connected with the support (202) and the vertical shaft (214), a reset spring (215) is arranged between the bottom plate (201) and the lifting shaft (213), the reset spring (215) is sleeved on the outer ring of the vertical shaft (214), the first cylinder (219) is rotatably mounted on one rotating arm (203), an output shaft of the first cylinder (219) is connected with one end of the pushing rod (220), and the other end of the pushing rod (220) is hinged with the other rotating arm (203).

7. A flange fastening device according to claim 6, wherein: the fastening mechanism (4) further comprises two symmetrically arranged connecting cylinders (402), the two connecting cylinders (402) are respectively in running fit with the first annular groove (404), two sides of the connecting cylinders (402) are respectively fixedly installed with the two racks (401), one rack (401) is slidably installed on the vertical rod (410), the other rack (401) is in threaded fit with the second screw rod (408), the vertical rod (410) is fixedly installed above the workbench (1), the second screw rod (408) is fixedly connected with an output shaft of the second motor (409) fixedly installed on the workbench (1), the transposition gear (403) is in running fit with the connecting cylinders (402), the transposition gear (403) is in meshed fit with the driving gear (406), the driving gear (406) is fixedly connected with an output shaft of the driving motor (407), and the driving motor (407) is fixedly installed on the rack (401).

8. A flange fastening device according to claim 7, wherein: the fastening assembly comprises a right-angle motor (412), the right-angle motor (412) is fixedly arranged on an arc-shaped block (411), the arc-shaped block (411) is fixedly arranged on a second annular groove (405), a second cylinder (413) is fixedly arranged on an output shaft of the right-angle motor (412), one second cylinder (413) is fixedly connected with a rotating head (414), and the other second cylinder (413) is fixedly connected with a clamping head (415).

9. A flange fastening device according to claim 8, wherein: the moving mechanism (3) comprises a guide optical axis (303) and a first screw rod (302) which are rotatably arranged below the workbench (1), the guide optical axis (303) is in sliding fit with the bottoms of the two bottom plates (201), the first screw rod (302) is in threaded fit with the bottoms of the two bottom plates (201), the first screw rod (302) is fixedly connected with an output shaft of the first motor (301), and the first motor (301) is fixedly arranged below the workbench (1).