CN212190708U - Bending machine - Google Patents

Abstract

The utility model relates to a bending machine, it mainly includes support, workstation, goes up the mould and presss from both sides the clamping device who tightly goes up the mould. The clamping device comprises a supporting body arranged on a workbench of the bending machine, a connecting plate arranged on the supporting body in a detachable mode, a pressing plate arranged on the connecting plate and an oil pressure device arranged in the connecting plate and the pressing plate in a detachable mode, and the oil pressure device comprises a blocking piece and a hydraulic power structure. The utility model discloses have the convenience and change the effect of repairing to oil pressure unit.

Description

Bending machine

Technical Field

The utility model belongs to the technical field of the technique of sheet material stamping forming and specifically relates to a bender is related to.

Background

The bending piece has the advantages of light material, exquisite appearance, simple manufacture and high production efficiency, so that the bending piece is applied to various industries such as architectural decoration industry, office appliance industry, telecommunication industry and the like in production and manufacturing, and the bending piece is closely related to our life.

The bending machine is the most widely used bending forming equipment, and bending pieces with different shapes can be made on the bending machine to adapt to different production requirements. The corresponding last mould of needs installation is being processed to panel to the bender, goes up the mould and need be fully clamped tightly in order to carry out the subsequent handling on the bender, if go up the mould and press from both sides tight inadequately and will lead to bending force to distribute inhomogeneous on panel, bending force distributes inhomogeneous and just can produce very big influence to the finished product quality of panel, can produce a large amount of wastes materials even under the extreme state, from this it can be seen, it is very important to go up the mould and do the abundant clamp of good.

Now, a chinese utility model patent with a publication number of CN206392694U is retrieved, which is named as an upper mold clamping device. This scheme discloses an go up mould clamping device, including connecting the die shank, the single-action hydro-cylinder, the activity gag lever post, upset couple and last mould connector etc. before the die filling, the single-action hydro-cylinder is in the off-load state, will go up the mould connector afterwards and pack into to the assembly groove of connecting the die shank lower extreme, through to single-action hydro-cylinder input hydraulic oil, thereby hydro-cylinder pressure chamber pressure constantly risees and makes the gag lever post top in the last mould spacing groove of bender department realize pressing from both sides tightly, the upset couple also can support in order to improve the anticreep performance to the assistance-localization real-time piece bottom on the last mould connector simultaneously.

The above prior art solutions have the following drawbacks: the bender is after long-time work, and the loss can take place for the nonoculture hydro-cylinder inevitable, and above-mentioned scheme adopts the direct structure that sets up in connecting the die shank of nonoculture hydro-cylinder, just so need change whole last mould clamping device when the nonoculture hydro-cylinder takes place to damage, can lead to the problem that the handling capacity is big like this, waste time and energy and cost of maintenance is high.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a bending machine, its technical purpose that will realize is that oil pressure unit can dismantle the setting in clamping device so that change the maintenance.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a bending machine comprises a support, a workbench arranged on the support, an upper die used for bending a plate, a driving device driving the upper die to lift and a lower die matched with the upper die to support the plate, wherein a clamping device used for clamping the upper die is arranged on the driving device, and the clamping device comprises a support body arranged on the workbench, a connecting plate detachably arranged on the support body, a pressing plate arranged on one side of the connecting plate far away from the support body and an oil pressure device arranged in the connecting plate and the pressing plate; the supporter is seted up and is used for the installation go up the mounting groove and the body through-hole of mould, body through-hole intercommunication mounting groove, oil pressure unit sets up including sliding block piece in the body through-hole and being used for promoting block piece to go up the hydraulic power structure that the mould direction removed, thereby it makes to block the body through-hole to stretch out the tip that blocks support and press on the surface of mould.

By adopting the technical scheme, the hydraulic power structure pushes the blocking piece to be abutted against the surface of the upper die, so that the upper die is tightly pressed and fixed in the mounting groove. Because the oil pressure device can be dismantled and set up in connecting plate and clamp plate, lift off the clamp plate from the connecting plate earlier, lift off the connecting plate from the supporter again, it just can follow to hinder piece and hydraulic power structure the connecting plate with separate in the clamp plate, just can repair the maintenance according to above-mentioned step when oil pressure device needs to be changed, easy operation maintenance cost is low. The purpose that the oil pressure device is detachably arranged in the clamping device so as to be convenient for replacement and maintenance is achieved.

The present invention may be further configured in a preferred embodiment as: an oil filling hole and an oil filling cavity connected with the oil filling hole are formed in the pressing plate in a penetrating mode.

By adopting the technical scheme, the injected oil can directly generate pressure on the piston to push the piston by arranging the oil injection cavity. The contact area between the liquid and the piston is large, so that the piston is stressed uniformly and is not easy to damage.

The present invention may be further configured in a preferred embodiment as: the hydraulic power structure further comprises a piston arranged in the oil injection cavity, one end of the piston is pressed on the blocking piece, a second spring is arranged on one side of the piston, one end of the second spring is pressed on the piston, and the other end of the second spring is pressed on the connecting plate.

By adopting the technical scheme, after the oil pressure device is started, the piston is pressed, the piston is extruded to move towards the upper die direction, the piston moves towards the upper die direction, so that the second spring generates elastic deformation, the elastic potential energy can be stored when the second spring generates elastic deformation, and when the oil pressure device releases pressure, the elastic potential energy stored by the second spring is released to rebound the piston towards the oil injection cavity.

The present invention may be further configured in a preferred embodiment as: the hydraulic power structure further comprises an elastic sealing element, the elastic sealing element is located between the blocking element and the piston, one end of the piston is pressed against the elastic sealing element, and the blocking element is installed on the elastic sealing element.

Through adopting above-mentioned technical scheme, elastic sealing element can block the hydraulic oil in the oil pressure unit, prevents that oil pressure unit from pressing the in-process that liquid pressure oil was exerted pressure at the liquid feeding, and hydraulic oil extrudes the connecting plate and then causes and reveals owing to pressure.

The present invention may be further configured in a preferred embodiment as: one side of the elastic sealing element, which is close to the blocking element, is provided with a first spring, one end of the first spring is pressed on the elastic sealing element, and the other end of the first spring is pressed on one side of the supporting body.

By adopting the technical scheme, when the oil pressure device is filled with oil and applies pressure, the hydraulic oil can push the piston, the piston can push the sealing element to push the blocking element into the die groove, the first spring abutting against one end of the sealing element can be extruded to generate elastic deformation to store energy, and when the oil pressure device is relieved of pressure, the elastic potential energy of the first spring can be released to push the sealing element back to enable the blocking element to be separated from the die groove, so that the upper die is automatically separated from the mounting groove.

The present invention may be further configured in a preferred embodiment as: the pressing plate is provided with a plate through hole, the connecting plate is provided with a plate threaded hole communicated with the plate through hole, a second countersunk screw in threaded connection with the plate threaded hole is arranged in the plate through hole, and a nut of the second countersunk screw is pressed on one surface of the pressing plate, which is far away from the connecting plate.

Through adopting above-mentioned technical scheme, the clamp plate can be dismantled the setting and be in on the connecting plate, make the clamp plate firmly fix under the prerequisite of guaranteeing to dismantle the setting on the connecting plate, thereby use countersunk screw to enable the mounting plane of clamp plate to keep leveling and reduce the emergence of interfering the condition.

The present invention may be further configured in a preferred embodiment as: the supporting body is provided with a supporting body positioning groove, the connecting plate is provided with a groove so as to be provided with a sliding strip, and the sliding strip is in sliding connection with the supporting body positioning groove.

By adopting the technical scheme, when being installed, the connecting plate is installed on the supporting body through sliding connection, and is positioned in advance, so that the installation accuracy of the connecting plate is improved.

The present invention may be further configured in a preferred embodiment as: the upper end of the upper die is provided with a die groove, and the blocking piece can extend out of the body through hole to be pressed in the die groove so as to limit the upper die to be separated from the clamping device.

By adopting the technical scheme, the upper end of the upper die is provided with the groove, the blocking piece is pressed in the groove of the upper die instead of on the surface of the upper die, and the contact area between the blocking piece and the upper die is larger, so that the clamping is more sufficient.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the oil pressure device is detachably arranged in the connecting plate and the pressing plate, and is convenient to replace and maintain when damaged;

2. the clamping device has compact structure and contains a positioning groove and a sliding block so as to be convenient for positioning and installation.

Drawings

Fig. 1 is a schematic view of a clamping device mounted on a bending machine.

Fig. 2 is a schematic sectional view of the clamping device after clamping the upper die.

Fig. 3 is an exploded schematic view of the clamping device.

Fig. 4 is a schematic structural view of the support body.

Reference numerals: 1. a support; 2. a work table; 3. a drive device; 4. a clamping device; 41. a support body; 411. a fixed head; 4111. fixing the groove; 412. a body through hole; 413. a body positioning groove; 414. a body threaded bore; 415. mounting grooves; 42. a connecting plate; 421. a slide bar; 422. a connecting through hole; 423. an extrusion chamber; 4231. folding edges; 424. plate threaded holes; 425. a first countersunk screw; 43. pressing a plate; 431. a plate through hole; 432. an oil injection cavity; 433. an oil filler hole; 434. a second countersunk screw; 44. an oil pressure device; 441. a blocking member; 442. an elastomeric seal; 443. a piston; 444. a first spring; 445. a second spring; 5. an upper die; 51. and (4) forming a groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a bending machine, including support 1, install workstation 2 on support 1, install on workstation 2 and be used for bending the last mould 5 of panel and install the lower mould that mould 5 supported panel on support 1 in the cooperation, install on workstation 2 and order about the drive arrangement 3 that mould 5 goes up and down, install on drive arrangement 3 and be used for pressing from both sides tightly go up the clamping device 4 of mould 5. The working process of the driving device 3 is that a hydraulic cylinder drives a hydraulic cylinder piston to perform feeding motion, the hydraulic cylinder piston drives the upper die 5 to move downwards, and the upper die 5 moving downwards presses the bending piece on the lower die to bend.

Referring to fig. 2, the clamping device 4 includes a support body 41 mounted on the table 2, a connecting plate 42 detachably provided on the support body 41, a pressing plate 43 mounted on a side of the connecting plate 42 remote from the support body 41, and an oil pressure device 44 mounted in the connecting plate 42 and the pressing plate 43. The supporting body 41 has a fixed head 411, the fixed head 411 is opened with a fixed groove 4111, and the fixed groove 4111 is used for mounting the fixed head 411 on the driving device 3, so that the supporting body 41 is mounted on the driving device 3. The support body 41 is provided with an installation groove 415 for installing the upper die 5 and a body through hole 412, the cross section of the body through hole 412 is rectangular, the body through hole 412 is arranged at a position lower than the middle part of the support body 41, and the body through hole 412 is communicated with the installation groove 415. The oil pressure device 44 includes a stopper 441 slidably disposed in the body through hole 412, and a hydraulic power structure for pushing the stopper 441 to move toward the upper die 5, the body through hole 412 is rectangular, the cross section of the body through hole 412 is the same as that of the stopper 441, and one end of the hydraulic power structure pushes the stopper 441 to extend out of the body through hole 412 and to press against the surface of the upper end of the upper die 5. The upper end of one surface of the upper die 5 is provided with a die groove 51, the through hole 412 of the extending body of the blocking piece 441 is pressed in the die groove 51, and the opposite surface of the upper die 5 is pressed in the mounting groove 415, so that the upper die 5 is fixed in the mounting groove 415 under the pressing force.

With continued reference to FIG. 2, hydraulic power structures are used to fixedly compress upper die 5 within mounting slot 415. The connecting plate 42 is internally provided with a through hole in a penetrating manner to form a squeezing cavity 423, the pressing plate 43 is internally provided with an oil filling hole 433 and an oil filling cavity 432 connected with the oil filling hole 433, and the body through hole 412, the squeezing cavity 423 and the oil filling cavity 432 are communicated. The hydraulic power structure comprises a piston 443 arranged in the oiling cavity 432 and an elastic sealing member 442 arranged in the extrusion cavity 423, wherein the piston 443, the elastic sealing member 442 and the blocking member 441 are sequentially arranged in the extrusion cavity 423 and the oiling cavity 432 from the oiling cavity 432 to the body through hole 412, specifically, the elastic sealing member 442 is positioned between the blocking member 441 and the piston 443, one end of the piston 443 is arranged in the oiling cavity 432, the other end of the piston 443 is pressed against the elastic sealing member 442, and the blocking member 441 is arranged on the surface of the elastic sealing member 442 away from the piston 443. Besides, one side of the piston 443 is provided with a second spring 445, the second spring 445 provides the piston 443 with an elastic force in a direction away from the supporting body 41, one end of the second spring 445 abuts against one surface of the piston 443, which is close to the supporting body 41, the other end of the second spring 445 abuts against one surface of the connecting plate 42, which is away from the supporting body 41, one side of the elastic sealing member 442, which is close to the blocking member 441, is provided with a first spring 444, the first spring 444 provides the elastic sealing member 442 with an elastic force in a direction away from the supporting body 41, one end of the first spring 444 abuts against one surface of the elastic sealing member 442, which is close to the supporting body 41, and the other end of the first spring 444 abuts. By providing the first spring 444 and the second spring 445, after the oil pressure device 44 is opened, hydraulic oil is injected into the oiling chamber 432 through the oiling hole 433 to come into contact with the piston 443 to generate thrust. As the amount of oil increases, the pressure of the hydraulic oil on the piston 443 increases, and then the piston 443 pushes the elastic seal 442 and the stopper 441 mounted on the elastic seal 442, so that the stopper 441 moves toward the upper mold 5, and the first spring 444 and the second spring 445 in the original state elastically deform to store elastic potential energy. When the oil pressure device 44 is relieved, the first spring 444 and the second spring 445 release the elastic potential energy to push the elastic seal 442 and the piston 443 back toward the oil filling cavity 432. In this embodiment, the first and second springs 444 and 445 are preferably disc springs. The pressing chamber 423 is provided with a flange 4231 inward in the direction close to the oil injection chamber 432, one end of the piston 443 penetrates through a hole formed by the flange 4231 to press against the elastic seal 442, and the flange 4231 is used for positioning and mounting the piston 443 and providing a supporting force for the second spring 445.

Referring to fig. 2 and 3, the connection plate 42 is detachably provided on the support body 41. Specifically, the supporting body 41 has a body positioning groove 413, the connecting plate 42 has a groove to have a sliding bar 421, and the sliding bar 421 is slidably connected to the body positioning groove 413. In addition, the supporting body 41 is further provided with a body threaded hole 414, correspondingly, the connecting plate 42 is provided with a connecting through hole 422 communicated with the body threaded hole 414, a first countersunk head screw 425 is arranged in the connecting through hole 422, and a nut of the first countersunk head screw 425 abuts against one surface, far away from the supporting body 41, in the connecting through hole 422. During installation, the slide bar 421 on the connecting plate 42 is aligned with the body positioning groove 413 on the supporting body 41, then the connecting plate 42 is pushed in the direction of the positioning groove until the body threaded hole 414 is aligned with the connecting through hole 422, and the first countersunk screw 425 is screwed to fix the connecting plate 42 on the supporting body 41. The first countersunk screw 425 is reversely rotated to disengage the connection plate 42 from the support body 41 to be detachable.

Referring to fig. 3 and 4, the pressing plate 43 is detachably disposed on the connecting plate 42, the pressing plate 43 is provided with a plate through hole 431, the connecting plate 42 is provided with a plate threaded hole 424 communicated with the plate through hole 431, a second countersunk head screw 434 screwed on the plate threaded hole 424 is disposed in the plate through hole 431, and a nut of the second countersunk head screw 434 abuts against a surface of the pressing plate 43 away from the connecting plate 42. When mounting, the pressing plate 43 is aligned with the coupling plate 42 such that the plate through hole 431 is aligned with the plate screw hole 424, and then the second countersunk screw 434 is screwed to fix the pressing plate 43 to the coupling plate 42. The second countersunk screw 434 is reversely rotated to disengage the pressure plate 43 from the coupling plate 42 to be detachable.

The implementation principle of the embodiment is as follows: the clamping device 4 is mounted on the driving device 3, the driving device 3 drives the clamping device 4 to ascend and descend to complete the bending work, when the upper die 5 needs to be clamped, the upper die 5 is placed into the mounting groove 415 to enable the die groove 51 to be aligned with the body through hole 412, then the oil pressure device 44 is started, and the oil pressure device 44 drives the blocking piece 441 to be pressed in the die groove 51 to enable the upper die 5 to be fixed in the mounting groove 415. When the upper mold 5 needs to be removed and replaced, the oil pressure device 44 is closed to release pressure, and the first spring 444 and the second spring 445 release the stored elastic potential energy to rebound the stopper 441 and the piston 443, so that the stopper 441 is separated from the mold groove 51 to separate the upper mold 5 from the mounting groove 415.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. A bending machine comprises a support (1), a workbench (2) arranged on the support (1), an upper die (5) used for bending a plate, a driving device (3) used for driving the upper die (5) to lift, and a lower die matched with the upper die (5) to support the plate, and is characterized in that a clamping device (4) used for clamping the upper die (5) is arranged on the driving device (3), the clamping device (4) comprises a support body (41) arranged on the workbench (2), a connecting plate (42) detachably arranged on the support body (41), a pressing plate (43) arranged on one side, far away from the support body (41), of the connecting plate (42), and an oil pressure device (44) arranged in the connecting plate (42) and the pressing plate (43); the supporting body (41) is provided with a mounting groove (415) for mounting the upper die (5) and a body through hole (412), the body through hole (412) is communicated with the mounting groove (415), the oil pressure device (44) comprises a blocking piece (441) which is arranged in the body through hole (412) in a sliding mode and a hydraulic power structure which is used for pushing the blocking piece (441) to move towards the upper die (5), the blocking piece (441) extends out of the body through hole (412), and the end portion of the blocking piece (441) is pressed against the surface of the upper die (5).

2. Machine according to claim 1, wherein said pressure plate (43) has an oil hole (433) made therein and an oil cavity (432) connected to said oil hole (433).

3. A machine according to claim 2, characterized in that said hydraulic power structure comprises a piston (443) arranged inside said oil injection cavity (432), one end of said piston (443) is pressed against said blocking member (441), one side of said piston (443) is provided with a second spring (445), one end of said second spring (445) is pressed against said piston (443), the other end of said second spring (445) is pressed against a connecting plate (42).

4. Machine according to claim 3, characterized in that said hydraulic power structure further comprises an elastic seal (442), said elastic seal (442) being located between said stop (441) and said piston (443), one end of said piston (443) being pressed against said elastic seal (442), said stop (441) being mounted on said elastic seal (442).

5. Machine according to claim 4, characterized in that said elastic seal (442) is provided, on the side close to said stop (441), with a first spring (444), one end of said first spring (444) being pressed against said elastic seal (442), the other end of said first spring (444) being pressed against one side of said supporting body (41).

6. The bending machine according to claim 1, wherein the pressing plate (43) is provided with a plate through hole (431), the connecting plate (42) is provided with a plate threaded hole (424) communicated with the plate through hole (431), a second countersunk screw (434) in threaded connection with the plate threaded hole (424) is arranged in the plate through hole (431), and a nut of the second countersunk screw (434) is pressed against a surface of the pressing plate (43) far away from the connecting plate (42).

7. Machine according to claim 1, wherein said supporting body (41) has a body positioning slot (413), said connecting plate (42) is grooved to have a sliding bar (421), said sliding bar (421) being slidably connected to said body positioning slot (413).

8. The bending machine according to claim 1, wherein the upper end of the upper die (5) is provided with a die groove (51), and the blocking member (441) extends out of the body through hole (412) and is pressed in the die groove (51).

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