CN108971773B

CN108971773B - Tubular product self-adaptation centre gripping tool

Info

Publication number: CN108971773B
Application number: CN201811044391.1A
Authority: CN
Inventors: 王乃叶
Original assignee: Suzhou Maikeaier Technology Co ltd
Current assignee: Suzhou Maikeaier Technology Co ltd
Priority date: 2018-09-07
Filing date: 2018-09-07
Publication date: 2020-04-21
Anticipated expiration: 2038-09-07
Also published as: CN108971773A

Abstract

The invention provides a pipe self-adaptive clamping jig, which relates to a clamp for pipe laser cutting, and comprises a base, a clamping device arranged on the base and an adjusting mechanism arranged on the clamping device, wherein the clamping device comprises an adjusting shaft arranged on the base along the horizontal direction, a lower clamping plate rotating on the adjusting shaft and an upper clamping plate fixed on the base above the lower clamping plate, a gap for clamping a pipe is arranged between the upper clamping plate and the lower clamping plate, the adjusting mechanism comprises an extension spring connected between the upper clamping plate and the lower clamping plate along the vertical direction and an adjusting block sliding on the lower clamping plate along the vertical direction, the upper surface of the adjusting block is contacted with the lower surface of the lower clamping plate, one end of the extension spring is connected with the upper clamping plate, and the other end of the extension spring is connected with the adjusting. The invention has strong universality, can adapt to various pipes, ensures that the pipes are not changed in the processing process and simultaneously eliminates the influence of abrasion.

Description

Tubular product self-adaptation centre gripping tool

Technical Field

The invention relates to a clamp for pipe laser cutting, in particular to a pipe self-adaptive clamping jig.

Background

The pipe need rotate simultaneously and feed in the course of working, in order to guarantee cutting size precision and cutting edge effect, laser beam machining need guarantee that laser focus position does not change or change must control within 0.01mm is beated, fixed size guide pin bushing tool need be made to order to general tubular product cutting, every kind of external diameter pipe need dispose the guide pin bushing that corresponds, guarantee unilateral 0.005mm clearance between this unilateral clearance of guide pin bushing and the pipe external diameter, fixed guide pin bushing machining precision requires highly, long-term processing wearing and tearing back size precision loses and scrap promptly.

Disclosure of Invention

In order to solve the technical problems, the invention provides a pipe self-adaptive clamping jig which is strong in universality, can adapt to various pipes, ensures that the pipes are not changed in the processing process, and simultaneously eliminates the influence of abrasion.

The invention adopts the following technical scheme:

the utility model provides a tubular product self-adaptation centre gripping tool, include the base, set up in clamping device on the base and set up in last adjustment mechanism of clamping device, clamping device include along the horizontal direction set up in regulating spindle on the base, rotate in lower plate on the regulating spindle and be fixed in the lower plate top punch holder on the base, the punch holder with be equipped with the clearance that is used for centre gripping tubular product between the lower plate, adjustment mechanism include along vertical direction connect in punch holder with extension spring between the lower plate and along vertical direction slide in regulating block on the lower plate, the upper surface of regulating block with the lower surface of lower plate contacts, extension spring's one end with the punch holder is connected, extension spring's the other end with the regulating block is connected.

Preferably, the lower position of the lower splint is provided with a sleeve at the position of the extension spring, the extension spring penetrates through the lower splint and is arranged in the sleeve, a sliding groove is formed in the side wall of the sleeve along the axial direction, the adjusting block is sleeved on the sleeve, a sliding block matched with the sliding groove is arranged on the adjusting block, and the sliding block penetrates through the sleeve and is fixedly connected with the extension spring in the sleeve.

Preferably, the regulating block with sleeve pipe threaded connection, the spout symmetry set up in sheathed tube both sides, the slider is the column, the length of slider is greater than sheathed tube diameter, the both ends of slider run through respectively both sides the spout, the lower surface of regulating block is equipped with the rotation groove, so the slider rotate in rotate the inslot.

Preferably, still include fine-tuning, extension spring pass through fine-tuning connect in on the punch holder, fine-tuning is including being fixed in divide head on the punch holder, be equipped with the connecting block on the measuring staff of divide head, extension spring with connecting block fixed connection.

Preferably, the regulating shaft is located in the middle of the lower clamping plate, a buffer is further arranged on the upper clamping plate, the buffer and the fine adjustment mechanism are respectively located on two sides of the regulating shaft, and the buffer can be in contact with the lower clamping plate.

Preferably, an upper chuck and a lower chuck which are matched with each other are respectively arranged on the upper clamping plate and the lower clamping plate, a clamping groove is formed in the lower chuck along the axial direction of the adjusting shaft, a pressing block is arranged at the clamping groove on the upper chuck, and a gap for clamping a pipe is formed between the pressing block and the clamping groove.

Preferably, still be equipped with a plurality of perpendicular on the lower chuck the slot of centre gripping groove, the cross-section of slot is the V style of calligraphy, and in tubular product cutting process, the sweeps can get into the slot, conveniently collects the processing to the sweeps.

Preferably, the base is further provided with a sliding table, the sliding table comprises a horizontal sliding table and a vertical sliding table, the horizontal sliding table is arranged on the base, the vertical sliding table is arranged on the horizontal sliding table, the upper clamping plate and the adjusting shaft are arranged on the vertical sliding table, and the position of the clamping device can be adjusted through the horizontal sliding table and the vertical sliding table according to production needs.

The invention has the beneficial effects that:

the self-adaptive clamping jig for the pipe manufactured by the invention solves the problems that each specification of the fixed guide sleeve can only adapt to one pipe diameter, and the fixed guide sleeve cannot be used when the pipe diameter change exceeds a certain numerical value; the pipe clamping device can adapt to pipe clamping of different specifications through the adjusting shaft and the extension spring, is stable and low in loss, and can always enable the pipe to be in a clamping state due to the spring action even after the pipe is worn, so that the cutting requirement is met.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

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

FIG. 2 is a schematic view of the clamping device and the adjusting mechanism according to the present invention;

FIG. 3 is a schematic sectional view of the connection between the adjusting mechanism and the fine adjustment mechanism according to the present invention;

FIG. 4 is a schematic view of the structure of the upper and lower chucks of the present invention;

fig. 5 is a schematic structural view of the lower chuck of the present invention.

Labeled as: 1. a base; 2. an adjustment shaft; 3. a lower splint; 4. an upper splint; 5. an extension spring; 6. an adjusting block; 7. a sleeve; 8. a chute; 9. a slider; 10. differentiating the head; 11. connecting blocks; 12. a buffer; 13. an upper chuck; 14. a lower chuck; 15. a clamping groove; 16. briquetting; 17. a trench; 18. a horizontal sliding table; 19. and (4) a vertical sliding table.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1 to 5, a tubular product self-adaptation centre gripping tool for this embodiment, including base 1, set up clamping device on base 1 and set up the adjustment mechanism on clamping device, clamping device includes setting up regulating shaft 2 on base 1 along the horizontal direction, rotate lower plate 3 on regulating shaft 2 and be fixed in the punch holder 4 on the base 1 of lower plate 3 top, be equipped with the clearance that is used for centre gripping tubular product between punch holder 4 and the lower plate 3, adjustment mechanism includes connecting extension spring 5 between punch holder 4 and lower plate 3 and sliding the regulating block 6 on lower plate 3 along vertical direction, the upper surface of regulating block 6 contacts with the lower surface of lower plate 3, extension spring 5's one end is connected with punch holder 4, extension spring 5's the other end is connected with regulating block 6.

The below of lower plate 3 is located extension spring 5 department and is equipped with sleeve pipe 7, and extension spring 5 runs through lower plate 3 and sets up in sleeve pipe 7, is equipped with spout 8 along the axial on the lateral wall of sleeve pipe 7, and on 6 covers of regulating block located sleeve pipe 7, regulating block 6 is equipped with on the regulating block 6 with spout 8 matched with slider 9 in sleeve pipe 7 threaded connection, slider 9 runs through extension spring 5 fixed connection in sleeve pipe 7 and the sleeve pipe 7.

Regulating block 6 and sleeve pipe 7 threaded connection, 8 symmetries of spout set up in the both sides of sleeve pipe 7, and slider 9 is the column, and slider 9's length is greater than sleeve pipe 7's diameter, and the spout 8 of both sides is run through respectively at the both ends of slider 9, and the lower surface of regulating block 6 is equipped with the rotation groove, and slider 9 rotates in the rotation inslot.

Still include fine-tuning, extension spring 5 passes through fine-tuning to be connected on punch holder 4, and fine-tuning is equipped with connecting block 11 including being fixed in the differential head 10 on punch holder 4 on the measuring staff of differential head 10, extension spring 5 and connecting block 11 fixed connection.

The adjusting shaft 2 is located in the middle of the lower clamping plate 3, the upper clamping plate 4 is further provided with a buffer 12, the buffer 12 and the fine adjustment mechanism are located on two sides of the adjusting shaft 2 respectively, and the buffer 12 can be in contact with the lower clamping plate 3.

An upper chuck 13 and a lower chuck 14 which are matched with each other are respectively arranged on the upper clamping plate 4 and the lower clamping plate 3, a clamping groove 15 is arranged on the lower chuck 14 along the axial direction of the adjusting shaft 2, a pressing block 16 is arranged on the upper chuck 13 at the clamping groove 15, and a gap for clamping a pipe is arranged between the pressing block 16 and the clamping groove 15; the lower chuck 14 is also provided with a plurality of grooves 17 which are vertical to the clamping grooves 15, and the cross section of each groove 17 is V-shaped.

Still be equipped with the slip table on the base 1, the slip table includes horizontal slip table 18 and vertical slip table 19, and horizontal slip table 18 sets up on base 1, and vertical slip table 19 sets up on horizontal slip table 18, and punch holder 4 and regulating spindle 2 all set up on vertical slip table 19.

The working principle of the embodiment is as follows:

during adjustment, firstly, the clamping device is roughly adjusted through the adjusting mechanism to adapt to the diameter of a pipe, and then the clamping device is finely adjusted through the fine adjusting mechanism to control the clamping precision, specifically, during coarse adjustment, the adjusting block 6 is rotated and moved on the sleeve 7, the adjusting block 6 pulls the extension spring 5 through the sliding block 9, the sliding block 9 slides in the sliding groove 8, the lower clamp plate 3 rotates around the adjusting shaft 2 to adjust the distance between the lower clamp plate 3 and the upper clamp plate 4, when the rotating stroke of the lower clamp plate 3 around the adjusting shaft 2 is too large, the buffer 12 plays a role in buffering protection, during fine adjustment, the fine dividing head 10 is rotated to adjust the position of the connecting block 11, and precision adjustment of the position of the connecting block 11 can be realized due to the precision of the fine dividing head 10, namely, fine adjustment of the distance between the lower clamp plate 3 and the upper clamp plate 4 is realized.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. 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 pipe self-adaptive clamping jig is characterized by comprising a base, a clamping device arranged on the base and an adjusting mechanism arranged on the clamping device, wherein the clamping device comprises an adjusting shaft arranged on the base along the horizontal direction, a lower clamping plate rotating on the adjusting shaft and an upper clamping plate fixed on the base above the lower clamping plate, and a gap for clamping a pipe is arranged between the upper clamping plate and the lower clamping plate;

adjustment mechanism includes extension spring and the regulating block that sets up along vertical direction, the below of lower plate is located extension spring department is equipped with the sleeve pipe that sets up along vertical direction, sheathed tube upper surface with the lower surface of lower plate contacts, and the regulating block can remove along vertical direction on the sleeve pipe, extension spring's one end with the upper plate is connected, extension spring's the other end runs through the lower plate with the regulating block is connected.

2. The self-adaptive clamping jig for the pipe according to claim 1, wherein a sliding groove is axially formed in the side wall of the sleeve, the adjusting block is sleeved on the sleeve and is in threaded connection with the sleeve, a sliding block matched with the sliding groove is arranged on the adjusting block, and the sliding block penetrates through the sleeve; and one end of the extension spring penetrating through the lower clamping plate extends into the sleeve and is fixedly connected with the sliding block.

3. The adaptive pipe clamping jig according to claim 2, wherein the sliding grooves are symmetrically arranged on two sides of the sleeve, the sliding block is cylindrical, the length of the sliding block is greater than the diameter of the sleeve, two ends of the sliding block respectively penetrate through the sliding grooves on the two sides, and a rotating groove is formed in the lower surface of the adjusting block, so that the sliding block rotates in the rotating groove.

4. The adaptive pipe clamping jig of claim 3, further comprising a fine adjustment mechanism, wherein the extension spring is connected to the upper clamping plate through the fine adjustment mechanism, the fine adjustment mechanism comprises a differential head fixed on the upper clamping plate, a measuring rod of the differential head is provided with a connecting block, and the extension spring is fixedly connected with the connecting block.

5. The adaptive pipe clamping jig of claim 4, wherein the adjusting shaft is located in the middle of the lower clamping plate, the upper clamping plate is further provided with a buffer, the buffer and the fine adjustment mechanism are respectively located on two sides of the adjusting shaft, and the buffer can be in contact with the lower clamping plate.

6. The pipe self-adaptive clamping jig according to any one of claims 1 to 5, wherein an upper clamping head and a lower clamping head which are matched with each other are respectively arranged on the upper clamping plate and the lower clamping plate, a clamping groove is arranged on the lower clamping head along the axial direction of the adjusting shaft, a pressing block is arranged on the upper clamping head at the clamping groove, and a gap for clamping a pipe is arranged between the pressing block and the clamping groove.

7. The adaptive pipe clamping jig of claim 6, wherein the lower chuck is further provided with a plurality of grooves perpendicular to the clamping grooves, and the cross section of each groove is V-shaped.

8. The pipe self-adaptive clamping jig according to claim 1 or 7, characterized in that a sliding table is further arranged on the base, the sliding table comprises a horizontal sliding table and a vertical sliding table, the horizontal sliding table is arranged on the base, the vertical sliding table is arranged on the horizontal sliding table, and the upper clamping plate and the adjusting shaft are arranged on the vertical sliding table.