CN208800604U

CN208800604U - Clamping device in a kind of bending machine

Info

Publication number: CN208800604U
Application number: CN201821571015.3U
Authority: CN
Inventors: 占小明; 黎建钠; 杨伟
Original assignee: Foshan Guangyu Stainless Steel Co Ltd
Current assignee: Foshan Guangyu Stainless Steel Co Ltd
Priority date: 2018-09-26
Filing date: 2018-09-26
Publication date: 2019-04-30
Anticipated expiration: 2028-09-26

Abstract

The utility model discloses clamping devices in a kind of bending machine, it includes spindle drum, positioning spindle, ejector sleeve, mobile drive deivce, beam holder, internal beam folder, sleeve, mandrel and detection device, positioning spindle is connected in spindle drum, ejector sleeve is connect with positioning spindle slide outside, mobile drive deivce is connected at the top of spindle drum, mobile drive deivce driving ejector sleeve is moved along the direction of axis line of positioning spindle, beam holder one end is threadedly coupled with positioning spindle, the other end has fixed jaw, internal beam presss from both sides one end and connect with fixed jaw, the other end has a distending portion, distending portion has multiple conduits, sleeve one end is threadedly coupled with ejector sleeve, the other end is connect with mandrel, it is internal that mandrel is socketed on internal beam folder, detection device is arranged on mobile drive deivce.Using the utility model, realizes the function of fixing pipe fitting in a manner of tensioner pipe fitting inner wall, avoid limitation of the clamping by guided mode, be able to solve the problem of pipe fitting clout is wasted.

Description

Clamping device in a kind of bending machine

Technical field

The utility model relates to a kind of bending machine equipment technical field more particularly to a kind of clamping devices of bending machine.

Background technique

Pipe bending technique is widely used in the bend pipe of multiple industries such as auto industry, shipping industry, aerospace industries It manufactures, such as the exhaust pipe of automotive muffler, exhaust pipe is a kind of bend pipe with multiple bends, and is manufactured in bending machine Pipe fitting is fixed usually using clamping device during bend pipe, existing clamping device is (also known as outer using pipe end external clamping Beam folder), when bending machine push pipe fitting carries out last one curved bend pipe processing, the front end of clamping device is reached positioned at bend pipe The location of guided mode on head.Clamping device is limited by guided mode at this time, can not be pushed, therefore can not will be remaining Pipe fitting push in bend pipe mould, at this moment be located at guided mode in pipe fitting just at processing clout, be wasted.

Summary of the invention

Technical problem to be solved by the utility model is to provide clamping devices in a kind of bending machine, realize with tensioner Pipe fitting inner wall mode fixes the function of pipe fitting, avoids limitation of the clamping by guided mode, is able to solve pipe fitting clout and is wasted The problem of.

In order to solve the above-mentioned technical problem, the utility model provides clamping device in a kind of bending machine, including spindle drum, Positioning spindle, ejector sleeve, mobile drive deivce, beam holder, internal beam folder, sleeve, mandrel and detection device,

Positioning spindle is connected in the spindle drum, ejector sleeve is connect with positioning spindle slide outside, connection at the top of spindle drum There is mobile drive deivce, mobile drive deivce driving ejector sleeve is moved along the direction of axis line of positioning spindle；

Beam holder one end is threadedly coupled with positioning spindle, and there is the other end direction of axis line along beam holder to extend Fixed jaw；

The internal beam presss from both sides one end and connect with fixed jaw, and the other end has a distending portion, and distending portion inner peripheral surface is along separate The axle center linear shrinkage that the direction of fixed jaw is pressed from both sides towards internal beam, distending portion have multiple conduits；

Described sleeve one end is threadedly coupled with ejector sleeve, and the other end has an end face, and the end face is connect with mandrel, end face tool There is through-hole corresponding with fixed jaw；

It is internal that the mandrel is socketed on internal beam folder, and mandrel end has a pushing part, and the outside of pushing part is in a circular table shape；

The detection device is arranged on mobile drive deivce.

Wherein, the mobile drive deivce includes hydraulic cylinder, bracket and carrier base, and the spindle drum bottom is connected with bracket Seat, the spindle drum top is hinged with hydraulic cylinder body, and the extension bar and bracket of hydraulic cylinder are hinged, and there is bracket ejector sleeve to pass through Opening, the bottom of opening and carrier base are hinged, and two insides of opening are connected separately with idler wheel, and an annular is equipped with outside the ejector sleeve Groove, the idler wheel are located in groove.

Wherein, the detection device includes round bar, first sensor and second sensor, and described round bar one end is fixed on institute At the top of the extension bar for stating hydraulic cylinder, round bar is parallel with the extension bar of hydraulic cylinder, and the round bar other end is connected with the first positioning Wheel, the second locating wheel, the first sensor, second sensor are each attached on hydraulic cylinder body.

Wherein, the fixed jaw is three or four.

Wherein, the conduit extends along the direction of axis line that internal beam presss from both sides.

Wherein, the internal beam folder also has the clamping part for the direction of axis line extension connecting with distending portion and along internal beam folder, The clamping part and the distending end surface joining place have one to support not-go-end face.

Wherein, the clamping part surface has anti-skid chequer.

Wherein, the end face of the sleeve is also connected with mask, and the mask is sheathed on outside beam holder.

Implement the utility model has the beneficial effects that: pushing mandrel to move in internal beam presss from both sides by the cooperation of ejector sleeve and sleeve Dynamic, the pushing part of mandrel acts on the distending portion of internal beam folder so that the pawl valve of internal beam folder extends out and resists pipe fitting inner wall, realize from The function of the fixed pipe fitting of pipe fitting inner wall, avoids limitation of the clamping by guided mode, can make full use of the pipe fitting clout in guided mode, solve The problem of certainly clout is wasted；It is provided with mask, dust or particle in environment is prevented to be adhered to the surface of mandrel, to influence Opposite sliding between mandrel and internal beam folder.

Detailed description of the invention

Fig. 1 be the utility model proposes a kind of bending machine in clamping device main view；

Fig. 2 be the utility model proposes a kind of bending machine in clamping device main view A-A cross-sectional view；

Fig. 3 be the utility model proposes a kind of bending machine in clamping device main view B-B cross-sectional view；

Fig. 4 is enlarged drawing at the I of Fig. 1；

Fig. 5 be the utility model proposes a kind of bending machine in clamping device top view.

In figure: 1, spindle drum；2, positioning spindle；3, ejector sleeve；31, groove；4, mobile drive deivce；41, hydraulic cylinder；42, Bracket；43, carrier base；44, idler wheel；5, beam holder；51, fixed jaw；6, internal beam presss from both sides；61, distending portion；62, conduit；63, it clamps Portion；To not-go-end face；7, sleeve；71, end face；72, through-hole；8, mandrel；81, pushing part；9, detection device；91, round bar；92, One sensor；93, second sensor；94, the first locating wheel；95, the second locating wheel；10, mask.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.

Referring to Fig.1-5, clamping device in a kind of bending machine of the utility model, it includes spindle drum 1, positioning spindle 2, ejector sleeve 3, mobile drive deivce 4, beam holder 5, internal beam folder 6, sleeve 7, mandrel 8 and detection device 9, the spindle drum 1 are arranged in bend pipe On machine, can be driven and be moved by bending machine, be connected with positioning spindle 2 in spindle drum 1, positioning spindle 2 is in hollow tubular, ejector sleeve 3 with 2 slide outside of positioning spindle connects, and mobile drive deivce 4 is connected at the top of spindle drum 1, and mobile drive deivce 4 drives 3 edge of ejector sleeve The direction of axis line of positioning spindle 2 is mobile, and mobile drive deivce 4 is controlled by the controller of bending machine；The beam holder 5 is in hollow Tubulose, 5 one end of beam holder are threadedly coupled with positioning spindle 2, and the other end has the fixation that the direction of axis line along beam holder 5 extends Pawl 51；The internal beam folder 5 is in hollow tubular, and internal beam presss from both sides 6 one end and connect by screw with fixed jaw 51, and the other end has a distending Portion 61, along the direction far from fixed jaw 51 towards the axle center linear shrinkage of internal beam folder 6, distending portion 61 has 61 inner peripheral surface of distending portion 6 conduits 62, it is preferable that conduit 62 extends along the direction of axis line of internal beam folder 6, so that the end of internal beam folder 6 forms and can be expanded The pawl valve 65 opened；The sleeve 7 is set in the outside of beam holder 5, and one end of sleeve 7 is threadedly coupled with ejector sleeve 3, and the other end has One end face 71, the end face 71 are connect by screw with mandrel 8, and end face 71 has through-hole 72 corresponding with fixed jaw 51；It is described Mandrel 8 is socketed on inside internal beam folder 6, and 8 end of mandrel has a pushing part 81, and the outside of pushing part 81 is in a circular table shape；Bend pipe The controller of machine controls mobile drive deivce 4, and mobile drive deivce 4 drives ejector sleeve 3 mobile forward, and ejector sleeve 3 is synchronous with sleeve 7 to be moved Dynamic, to drive mandrel 8 mobile forward, 61 inner peripheral surface of distending portion of 81 pushing tow internal beam of the pushing part folder 6 of mandrel 8 makes pawl valve 65 Expansion state is formed, in this way, the pawl valve 65 of internal beam folder 6 forms the mesh for extending out and resisting pipe fitting inner wall and then reach to pipe fitting positioning 's；When mobile drive deivce 4 drives ejector sleeve 3 to retreat, ejector sleeve 3 and 7 synchronizing moving of sleeve, so that mandrel 8 is driven to reset, mandrel 8 Pushing part 81 no longer pushing tow internal beam folder 6 61 inner peripheral surface of distending portion so that pawl valve 65 restore to the original state and be detached from pipe fitting inner wall, reach To the purpose for unclamping pipe fitting.The detection device 9 is arranged on mobile drive deivce 4, the controller of detection device 9 and bending machine Connection.

In the present embodiment, referring to Fig. 3, the mobile drive deivce 4 includes hydraulic cylinder 41, bracket 42, carrier base 43, described 1 bottom of spindle drum is fixedly connected with carrier base 43, and 1 top of spindle drum is hinged with 41 cylinder body of hydraulic cylinder, and hydraulic cylinder 41 is stretched Rod and bracket 42 are hinged, the opening that there is bracket 42 ejector sleeve 3 to pass through, and the bottom of opening and carrier base 43 are hinged, and the two of opening Inside is connected separately with idler wheel 44, is equipped with an annular groove 31 outside the ejector sleeve 3, and the idler wheel 44 is located in groove 31, rolls The outer peripheral surface and 31 liang of side contacts of groove of wheel 44.The controller of bending machine connect that (hydraulic cylinder is connect with hydraulic pump with hydraulic cylinder 41 Belong to the prior art, repeat no more), the extension bar of the controller control hydraulic cylinder 41 of bending machine is stretched out or is retracted, and extension bar is stretched For driving arm 42 around the hinged center rotating of bracket 42 and carrier base 43, idler wheel 44 on bracket 42 pushes groove 31 out, To push ejector sleeve 3 mobile forward；Extension bar retracts driving arm 42 and resets, and the idler wheel 44 on bracket 42 pulls groove 31, so that ejector sleeve 3 retreats.

In the present embodiment, include round bar 91, first sensor 92 and second sensor 93 referring to detection device 9 described in Fig. 1, Described 91 one end of round bar is fixed at the top of the extension bar of the hydraulic cylinder 41, and round bar 91 is parallel with the extension bar of hydraulic cylinder 41, 91 other end of round bar is connected with the first locating wheel 94, the second locating wheel 95, the first sensor 92, second sensor 93 It is each attached on 41 cylinder body of hydraulic cylinder.The controller of bending machine is connect with first sensor 92, second sensor 93 respectively, and first Sensor 92, second sensor 93 are all made of capacitive approach switch, when the extension bar stretching of hydraulic cylinder 41, drive 91 court of round bar Preceding movement, the second locating wheel 95 blocks the information collection portion of second sensor 93, so that 93 trigger signal of second sensor is concurrent It send to controller, controller receives the extension bar stopping stretching of control hydraulic cylinder 41 after signal, in this way, illustrating that pipe fitting has positioned Finish, bend pipe processing can be carried out to pipe fitting；When the extension bar of hydraulic cylinder 41 retracts, driving round bar 91 is retreated, and the first locating wheel 94 hides The information collection portion of first sensor 92 is kept off, so that 93 trigger signal of first sensor and being sent to controller, controller is received The extension bar that hydraulic cylinder 41 is controlled after signal stops retracting, and illustrates that internal beam folder 6 has unclamped pipe fitting in this way, can use lower pipe fitting.

In the present embodiment, referring to Fig. 1,2, the fixed jaw 51 is four, and four fixed jaws 51 are uniformly arranged, fixed jaw 51 Interior to have threaded hole, internal beam, which presss from both sides 6 one end, has flange, and internal beam folder 6 is threadedly coupled through flange with threaded hole by screw, so that Internal beam folder 6 is steadily connect with beam holder 5, and convenient for disassembly and assembly.

In the present embodiment, referring to Fig. 1,4, the internal beam folder 6, which also has, to be connect and along the axle center of internal beam folder 6 with distending portion 61 The clamping part 63 that line direction extends, specifically, the outer diameter in distending portion 61 are the outer diameter of pipe fitting, and clamping part 63 is outer diameter than pipe fitting Internal diameter is small, can smoothly cover pipe fitting on clamping part 63 in this way, and internal beam folder 6 can smoothly enter in guided mode.The clamping Portion 63 and the 61 end face joining place of distending portion have one to support not-go-end face 64.Pipe fitting is set on clamping part 63, and is supported and only supported Not-go-end face 64, so that length clamped by every pipe fitting is consistent, the length that can avoid clamping is too long, wastes clout, or folder The length held is too short, and clamping is unstable.

In the present embodiment, referring to fig. 4,63 surface of clamping part has anti-skid chequer, is increased by anti-skid chequer and is connect with pipe fitting The frictional force of touching improves the stability of clamping.

In the present embodiment, referring to Fig. 1, the end face 71 of the sleeve 7 is also connected with mask 10, and the mask 10 is set in beam Outside holder 5.Due to being equipped with through-hole 72 in the end face 71 of sleeve 7, so that sleeve 7 avoids fixed jaw 51 and the socket of beam holder 5 Mandrel 8 in 6 inside of internal beam folder connects, such fixed jaw 51 with regard to it is exposed in the environment, dust or particle are easily adhered in environment To the outer peripheral surface of mandrel 8, particle is taken to internal beam when moving and presss from both sides 6 inner walls by such mandrel 8, to influence mandrel 8 and internal beam folder 6 Between opposite sliding, therefore be provided with mask 10, sleeve 7 is mobile to drive mask 10 mobile, guarantees fixed jaw 51 completely by mask 10 cover, so that fixed jaw 51 and production environment completely cut off.

Working principle: pipe fitting is packed into clamping part 63 by worker, and the end face of pipe fitting is supported only on supporting not-go-end face 64, bending machine The extension bar of controller control hydraulic cylinder 41 stretch out, driving ejector sleeve 3 is mobile forward, sleeve 7 and 8 synchronizing moving of mandrel so that 61 inner peripheral surface of distending portion of 81 pushing tow internal beam of the pushing part folder 6 of mandrel 8 is realized so that pawl valve 65 extends out and resist pipe fitting inner wall Positioning to pipe fitting, the first locating wheel 94 block first sensor 92, and triggering first sensor 92 generates signal and is sent to control Device processed, controller, which controls 41 extension bar of hydraulic cylinder, to be stopped stretching out, and then pipe fitting is pushed to bending mould and is bent by bending machine； After the completion of all flexure operations, the extension bar that controller controls hydraulic cylinder 41 is retracted, and driving ejector sleeve 3 retreats, sleeve 7 and mandrel 8 reset, so that distending portion 61 of the pushing part 81 of mandrel 8 far from internal beam folder 6, releases the thrusting action to distending portion 61, so that Pawl valve 65 restores and is detached from pipe fitting inner wall, realizes the release to pipe fitting, and the second locating wheel 95 blocks second sensor 93, touches Hair second sensor 93 generates signal and is sent to controller, and controller, which controls 41 extension bar of hydraulic cylinder, to be stopped retracting.To processing When the pipe fitting of different tube diameters, only need worker release the threaded connection between mandrel 8 and sleeve 7 and internal beam folder 6 and beam holder 5 it Between threaded connection, replacement mandrel 8 and internal beam folder 6, structure is simple and convenient to operate.Using the utility model, realize with swollen Tight pipe fitting inner wall mode fixes the function of pipe fitting, limitation of the clamping by guided mode when avoiding pushing pipe fitting, to be difficult to lead Pipe fitting clout in mould makes full use of.

The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model Within enclosing.

Claims

1. clamping device in a kind of bending machine, which is characterized in that it includes spindle drum (1), positioning spindle (2), ejector sleeve (3), moves Dynamic driving device (4), beam holder (5), internal beam folder (6), sleeve (7), mandrel (8) and detection device (9),

It is connected with positioning spindle (2) in the spindle drum (1), ejector sleeve (3) is connect with positioning spindle (2) slide outside, spindle drum (1) top is connected with mobile drive deivce (4), and mobile drive deivce (4) drives ejector sleeve (3) along the axial line of positioning spindle (2) Direction is mobile；

Described beam holder (5) one end is threadedly coupled with positioning spindle (2), and the other end has the direction of axis line along beam holder (5) The fixed jaw (51) of extension；

The internal beam folder (6) one end is connect with fixed jaw (51), and the other end has a distending portion (61), and the distending portion (61) is interior Circumferential surface presss from both sides (6) axle center linear shrinkage towards internal beam along the direction far from fixed jaw (51), and distending portion (61) have multiple conduits (62)；

Described sleeve (7) one end is threadedly coupled with ejector sleeve (3), and the other end has an end face (71), the end face (71) and mandrel (8) it connects, end face (71) have through-hole (72) corresponding with fixed jaw (51)；

It is internal that the mandrel (8) is socketed on internal beam folder (6), and mandrel (8) end has a pushing part (81), pushing part (81) It is external in a circular table shape；

The detection device (9) is arranged on mobile drive deivce (4).

2. clamping device in a kind of bending machine as described in claim 1, which is characterized in that mobile drive deivce (4) packet Hydraulic cylinder (41), bracket (42) and carrier base (43) are included, spindle drum (1) bottom is connected with carrier base (43), the main shaft Hinged with hydraulic cylinder (41) cylinder body at the top of seat (1), hingedly, bracket (42), which has, to be pushed away for the extension bar of hydraulic cylinder (41) and bracket (42) The opening that pipe (3) passes through, hingedly, two insides of opening are connected separately with idler wheel (44), institute for the bottom and carrier base (43) of opening It states and is equipped with an annular groove (31) outside ejector sleeve (3), the idler wheel (44) is located in groove (31).

3. clamping device in a kind of bending machine as claimed in claim 2, which is characterized in that the detection device (9) includes circle Bar (91), first sensor (92) and second sensor (93), described round bar (91) one end are fixed on the hydraulic cylinder (41) At the top of extension bar, round bar (91) is parallel with the extension bar of hydraulic cylinder (41), and it is fixed that round bar (91) other end is connected with first Position wheel (94), the second locating wheel (95), the first sensor (92), second sensor (93) are each attached to hydraulic cylinder (41) cylinder On body.

4. clamping device in a kind of bending machine as described in claim 1, which is characterized in that the fixed jaw (51) be three or Four.

5. clamping device in a kind of bending machine as described in claim 1, which is characterized in that the conduit (62) is pressed from both sides along internal beam (6) direction of axis line extends.

6. clamping device in a kind of bending machine as described in claim 1, which is characterized in that the internal beam folder (6) also have with Distending portion (61) connection and along internal beam folder (6) direction of axis line extend clamping part (63), the clamping part (63) with it is described Distending portion (61) end face joining place has one to support not-go-end face (64).

7. clamping device in a kind of bending machine as claimed in claim 6, which is characterized in that clamping part (63) surface has Anti-skid chequer.

8. clamping device in a kind of bending machine as described in claim 1, which is characterized in that the end face (71) of the sleeve (7) It is also connected with mask (10), it is external that the mask (10) is sheathed on beam holder (5).