CN218461448U

CN218461448U - Multi-shaft screwing mechanism

Info

Publication number: CN218461448U
Application number: CN202222052108.8U
Authority: CN
Inventors: 周锦栋; 吴传东
Original assignee: Ningbo Jiangbei Zhejiang Machine Equipment Co ltd
Current assignee: Ningbo Jiangbei Zhejiang Machine Equipment Co ltd
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2023-02-10
Anticipated expiration: 2032-08-02

Abstract

The utility model discloses a multiaxis tightening mechanism, including carrying a thing panel, carrying a thing clamping device, mobile device and tightening device, carry a thing clamping device set up in carry on a thing panel for clamp the article of treating bolt locking fixedly, tightening device is provided with a plurality ofly, each tightening device includes rotary drive device, universal joint coupling and the bolt tightening joint that connects gradually, the one end of universal joint coupling with the output shaft of rotary drive device, the other end with the bolt tightening joint is connected, mobile device drives a plurality of tightening device's bolt tightening joint one end simultaneously and is close to or keep away from carry a thing clamping device; the advantage is screwed up several bolts simultaneously through a plurality of tightening device, and the atress is even, and is high-efficient and assemble effectually.

Description

Multi-shaft screwing mechanism

Technical Field

The utility model relates to a bolt tightening device especially relates to a mechanism is screwed up to multiaxis.

Background

The existing tightening modes of a plurality of bolts on products such as a three-piece valve mainly comprise the following modes: 1) The wrench is manually used for screwing, and bolts need to be screwed one by one, so that the tool is simple, the operation is convenient, and the defects that the bolts are screwed one by one and the stress is not uniform, the assembly of the product is inclined, and poor sealing is caused are overcome; 2) The bolts are screwed one by using a pneumatic tool or other screwing equipment, and the defects that the bolts are screwed one by one, stress is possibly uneven, the assembly of a product is inclined, and the sealing is poor are caused. In view of the above problems, there is a need for a bolt tightening apparatus to solve.

Disclosure of Invention

The utility model aims to solve the technical problem that a mechanism is screwed up to multiaxis is provided, screws up several bolts simultaneously through a plurality of tightening devices, and the atress is even, and is high-efficient and assemble effectually.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

the utility model provides a multiaxis tightening mechanism, is including carrying the thing panel, carrying thing clamping device, mobile device and screwing up the device, carry thing clamping device set up in carry on the thing panel for it is fixed to treat that the article of bolt locking presss from both sides tightly, it is provided with a plurality ofly, every to screw up the device including the rotary drive device, universal joint coupling and the bolt tightening joint that connect gradually, the one end of universal joint coupling with rotary drive device's output shaft, the other end with the bolt tightening joint is connected, the mobile device drives a plurality ofly simultaneously the bolt tightening joint one end of screwing up the device is close to or keeps away from carry thing clamping device.

Preferably, the universal joint coupler comprises a first universal joint, an expansion rod and a second universal joint which are sequentially connected, the first universal joint is connected with an output shaft of the rotary driving device, and the second universal joint is connected with the bolt tightening joint.

Preferably, the device further comprises at least two guide posts, a horizontally arranged mounting plate and a movable plate, wherein the mounting plate is fixedly connected with the guide posts, and the movable plate can move up and down along the guide posts; the rotary driving device is fixed on the mounting plate, a limiting hole is formed in the movable plate, a second universal joint of the universal joint coupler is arranged in the limiting hole in a penetrating mode, or the bolt tightening joint is arranged in the limiting hole in a penetrating mode, the lower end of the bolt tightening joint penetrates out of the limiting hole, and the bolt tightening joint is enabled to keep longitudinal extension all the time.

Preferably, the moving means includes a first cylinder fixed to the mounting plate, and an expansion link of the first cylinder is fixedly connected to the movable plate.

Preferably, the movable plate is further provided with a limiting block, a positioning round hole is formed in the limiting block, the limiting hole is a kidney-shaped hole, and the bolt tightening joint sequentially penetrates through the positioning round hole and the limiting hole or sequentially penetrates through the limiting hole and the positioning round hole.

Preferably, the limiting block is further provided with a first waist-shaped adjusting hole, the movable plate is provided with a fixing hole, the arrangement direction of the first waist-shaped adjusting hole is consistent with that of the limiting hole, and the limiting block is locked and fixed on the movable plate through the first waist-shaped adjusting hole and the fixing hole which are sequentially penetrated through by a fastening piece.

Preferably, the stopper holes are radially arranged on the movable plate.

Preferably, it includes a plurality of clamping jaws that are radial setting to carry thing clamping device, be provided with second waist type regulation hole on the clamping jaw, be provided with the fixed orifices on carrying the thing panel, wear to establish second waist type regulation hole and fixed orifices in proper order through the fastener and will the clamping jaw locking is fixed in carry on the thing panel.

Preferably, the bottom of the object carrying panel is provided with a second cylinder, an ejector rod penetrates through the object carrying panel, and the second cylinder can push the ejector rod to move upwards to jack up the object locked by the bolt.

Preferably, a bottom plate is arranged below the loading panel, the loading panel is slidably mounted on the guide posts, and a driving mechanism for adjusting the vertical position of the loading panel is fixedly mounted on the bottom plate.

Compared with the prior art, the utility model has the advantages of:

1) A plurality of bolts are simultaneously screwed down through a plurality of screwing devices, so that the stress is uniform, the efficiency is high, and the assembly effect is good;

2) The universal coupling is used for adjusting the position of the output shaft of the rotary driving device, and is suitable for screwing two bolts which are relatively close to each other.

Drawings

Fig. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

fig. 3 is a third schematic structural view of the present invention;

fig. 4 is a fourth schematic structural view of the present invention;

FIG. 5 is a schematic structural view of the middle stopper of the present invention;

fig. 6 is a fifth schematic structural view of the present invention;

fig. 7 is a sixth schematic structural view of the present invention.

In the figure, 11, the carrier panel; 111. positioning holes; 12. a guide post; 13. mounting a plate; 14. a movable plate; 141. a limiting hole; 142. a fixing hole; 15. a limiting block; 151. positioning the circular hole; 152. a first kidney-shaped adjustment hole; 153. a limiting convex edge; 16. a base plate; 2. a carrying holding device; 21. a clamping jaw; 211. a second kidney-shaped adjustment hole; 3. a mobile device; 4. tightening the device; 41. a rotation driving device; 42. a universal coupling; 421. a first universal joint; 422. a telescopic rod; 423. a second universal joint; 43. screwing the joint by using a bolt; 5. an object; 6. a second cylinder; 7. a top rod; 8. a drive mechanism; 9. and a bearing.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

The first embodiment is as follows:

the utility model provides a multiaxis tightening mechanism, as shown in the figure, including two longitudinal extension's guide post 12 with set up on guide post 12 from last to down in proper order interval arrangement's mounting panel 13, movable plate 14, carry thing panel 11 and bottom plate 16, wherein mounting panel 13, movable plate 14, carry thing panel 11 and bottom plate 16 and be the level setting, mounting panel 13 is fixed with the upper end of two guide posts 12, bottom plate 16 is fixed with the lower extreme of two guide posts 12, be provided with the uide bushing on movable plate 14 and the year thing panel 11 respectively to can follow guide post 12 and reciprocate.

The multi-axis tightening mechanism further comprises a loading clamping device 2, a tightening device 4 and a moving device 3. The object carrying and clamping device 2 is arranged on the object carrying panel 11 and used for clamping and fixing the object 5 to be locked by the bolt.

The tightening devices 4 are provided in plurality, and each tightening device 4 includes a rotary drive device 41, a universal joint coupling, and a bolt tightening joint 43 connected in this order, one end of the universal joint coupling being connected to an output shaft of the rotary drive device 41, and the other end thereof being connected to the bolt tightening joint 43. The rotation driving device 41 is a servo motor, the servo motor is fixed on the mounting plate 13, an output shaft of the servo motor downwardly penetrates through the mounting plate 13 and then is connected with the upper end of a universal joint coupler, and the lower end of the universal joint coupler penetrates through the movable plate 14. Specifically, the universal joint coupler is a cross universal joint coupler, and includes a first universal joint 421, an expansion link 422, and a second universal joint 423 that are connected in sequence, the first universal joint 421 is connected to an output shaft of the rotation driving device 41, and the second universal joint 423 is connected to the bolt tightening joint 43. A limit hole 141 is formed in the movable plate 14, and the second universal joint 423 of the universal joint coupling is inserted into the limit hole 141, or the bolt fastening joint 43 is inserted into the limit hole 141 and the lower end thereof penetrates through the limit hole 141, so that the bolt fastening joint 43 always extends longitudinally.

The moving device 3 is used for driving the movable plate 14 to move up and down, the moving device 3 comprises a first air cylinder, the first air cylinder is fixed on the mounting plate 13, and an expansion rod 422 of the first air cylinder is fixedly connected with the movable plate 14.

When the object 5 needs to be screwed down by a bolt, the object 5 needs to be placed on the object carrying clamping device 2 firstly, then the first cylinder of the moving device 3 is started, the telescopic rod 422 of the first cylinder extends downwards to drive the movable plate 14 to move downwards close to the object carrying clamping device 2, and after the bolt on the bolt screwing joint 43 is aligned with the screw holes of the object 5 one by one, the plurality of rotary driving devices 41 are started simultaneously, a plurality of bolts are screwed down simultaneously, then the first cylinder is started again, the telescopic rod 422 is contracted upwards, and the movable plate 14 is driven to upwards keep away from the object carrying clamping device 2 and reset. The torque force for controlling the tightening speed by using the PLC, for example, a plurality of nuts are simultaneously tightened to 20 percent of the set torque force, and then are simultaneously tightened to 30 percent and 40 percent of the set torque force until the torque force reaches 100 percent of the set torque force, so that the plurality of nuts can be simultaneously tightened to the set value.

In order to enable the multi-shaft tightening mechanism to lock bolts on three-piece valves or other objects 5 with different sizes, a limiting hole 141 is formed in the movable plate 14, a plurality of limiting blocks 15 are further arranged on the movable plate 14, the number of the limiting blocks 15 corresponds to the number of the tightening devices 4 one by one, and the position of each bolt tightening joint 43 is adjusted through the matching of the limiting blocks 15 and the limiting holes 141. Specifically, the limiting block 15 is provided with a positioning round hole 151, the limiting hole 141 is a waist-shaped hole, the bolt tightening joint 43 sequentially penetrates through the positioning round hole 151 and the limiting hole 141, or the bolt tightening joint 43 sequentially penetrates through the limiting hole 141 and the positioning round hole 151, and the position of each bolt tightening joint 43 is adjusted by adjusting the position of the positioning round hole 151 corresponding to the waist-shaped hole, so that the position of each bolt tightening joint 43 is adjusted through the cooperation of the limiting block 15 and the limiting hole 141.

The limiting block 15 is further provided with a first waist-shaped adjusting hole 152, the movable plate 14 is provided with a fixing hole 142, the arrangement direction of the first waist-shaped adjusting hole 152 is consistent with that of the limiting hole 141, and the limiting block 15 is locked and fixed on the movable plate 14 through the first waist-shaped adjusting hole 152 and the fixing hole 142 which are sequentially penetrated through by a fastener. In this embodiment, the stopper holes 141 are radially arranged on the movable plate 14.

In order to adjust the position of the limiting block 15, the limiting block 15 has a limiting convex edge 153 extending downwards along the edge of the positioning circular hole 151, and the limiting convex edge 153 is annular and is inserted into the limiting hole 141.

In order to enable the tightening device 4 to rotate well, the second universal joint 423 is connected to the positioning round hole 151 of the stopper 15 through a bearing 9, and one end of the second universal joint 423 where the bearing 9 is provided is connected to the bolt tightening joint 43.

The object carrying clamping device 2 comprises a plurality of clamping jaws 21 arranged in a radial mode, a second waist-shaped adjusting hole 211 is formed in each clamping jaw 21, a positioning hole 111 is formed in the object carrying panel 11, and the clamping jaws 21 are locked and fixed on the object carrying panel 11 through the second waist-shaped adjusting holes 211 and the positioning holes 111 sequentially arranged in a penetrating mode through fasteners.

In use, an article 5 of the same batch is placed between the clamping jaws 21, and then the clamping jaws 21 are fixed by adjusting the positions of the clamping jaws 21 through the positioning holes 111 and the second waist-shaped adjusting holes 211. The worker then moves the movable plate 14 and the bolt tightening joint 43 downward by driving the moving device 3, and then adjusts the position of the stopper 15, thereby correspondingly adjusting the position of the bolt tightening joint 43.

Example two: the rest parts are the same as the first embodiment, and the difference is that in the first embodiment, the bottom of the object carrying panel 11 is provided with the second cylinder 6, the ejector rod 7 penetrates through the object carrying panel 11, and the second cylinder 6 can push the ejector rod 7 to move upwards to jack up the object 5 locked by the bolt.

Example three: the rest of the embodiment is the same as the first embodiment, but the difference is that the embodiment further includes a driving mechanism 8, the driving mechanism 8 can drive the loading panel 11 to the upper and lower positions of the guide post 12, and the driving mechanism 8 can be a cylinder, a servo motor or a screw.

Although the preferred embodiments of the present invention have been described in detail hereinabove, it should be clearly understood that modifications and variations of the present invention are possible to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-axis tightening mechanism, characterized in that: including carrying thing panel (11), carrying thing clamping device (2), mobile device (3) and screwing up device (4), carry thing clamping device (2) set up in carry on thing panel (11) for it is fixed to press from both sides the article (5) of treating bolt locking, it is provided with a plurality ofly to screw up device (4), every screw up device (4) including rotary drive device (41), universal joint coupling and the bolt tightening joint (43) that connect gradually, the one end of universal joint coupling with the output shaft of rotary drive device (41), the other end with bolt tightening joint (43) are connected, mobile device (3) drive simultaneously a plurality of bolt tightening joint (43) one end of screwing up device (4) is close to or keeps away from carry thing clamping device (2).

2. The multi-axis tightening mechanism of claim 1, wherein: the universal joint coupler comprises a first universal joint (421), a telescopic rod (422) and a second universal joint (423) which are sequentially connected, the first universal joint (421) is connected with an output shaft of the rotary driving device (41), and the second universal joint (423) is connected with the bolt tightening joint (43).

3. The multi-axis tightening mechanism of claim 2, wherein: the device is characterized by further comprising at least two guide columns (12), a mounting plate (13) and a movable plate (14), wherein the mounting plate (13) and the guide columns (12) are horizontally arranged, the movable plate (14) can move up and down along the guide columns (12); the rotary driving device (41) is fixed on the mounting plate (13), the movable plate (14) is provided with a limit hole (141), the second universal joint (423) of the universal joint coupler is arranged in the limit hole (141) in a penetrating mode, or the bolt tightening joint (43) is arranged in the limit hole (141) in a penetrating mode, the lower end of the bolt tightening joint penetrates through the limit hole (141), and the bolt tightening joint (43) is enabled to always keep extending longitudinally.

4. The multi-axis tightening mechanism of claim 3, wherein: the moving device (3) comprises a first air cylinder, the first air cylinder is fixed on the mounting plate (13), and an expansion rod (422) of the first air cylinder is fixedly connected with the movable plate (14).

5. The multi-axis tightening mechanism of claim 3, wherein: still be provided with stopper (15) on movable plate (14), be provided with location round hole (151) on stopper (15), spacing hole (141) are waist type hole, bolt tightening joint (43) pass in proper order location round hole (151) with spacing hole (141), perhaps bolt tightening joint (43) pass in proper order spacing hole (141) with location round hole (151).

6. The multi-axis tightening mechanism of claim 5, wherein: the limiting block (15) is further provided with a first waist-shaped adjusting hole (152), the movable plate (14) is provided with a fixing hole (142), the arrangement direction of the first waist-shaped adjusting hole (152) is consistent with that of the limiting hole (141), and the limiting block (15) is locked and fixed on the movable plate (14) through the first waist-shaped adjusting hole (152) and the fixing hole (142) which are sequentially penetrated through by fasteners.

7. The multi-axis tightening mechanism of claim 5, wherein: the limiting holes (141) are radially arranged on the movable plate (14).

8. A multi-axis tightening mechanism according to any one of claims 3 to 7, wherein: carry thing clamping device (2) including a plurality of clamping jaws (21) that are radial setting, be provided with second waist type regulation hole (211) on clamping jaw (21), be provided with fixed orifices (142) on carrying thing panel (11), wear to establish second waist type regulation hole (211) and fixed orifices (142) in proper order through the fastener and will clamping jaw (21) locking is fixed in carry on thing panel (11).

9. The multi-axis tightening mechanism of claim 8, wherein: the bottom of carrying the thing panel (11) is provided with second cylinder (6), wear to be equipped with ejector pin (7) on carrying the thing panel (11), second cylinder (6) can promote ejector pin (7) upward movement will be through article (5) jack-up after the bolt locking.

10. The multi-axis tightening mechanism of claim 8, wherein: a bottom plate (16) is arranged below the loading panel (11), the loading panel (11) is slidably mounted on the guide columns (12), and a driving mechanism (8) for adjusting the vertical position of the loading panel (11) is fixedly mounted on the bottom plate (16).