阅读说明：本技术 一种折弯机用后挡料定位装置 (Rear material blocking and positioning device for bending machine ) 是由 陈剑 尹彬沣 王超 于 2021-08-23 设计创作，主要内容包括：本发明公开了一种折弯机用后挡料定位装置,包括支撑组件,支撑组件包括机架,机架左右两端的内侧均固定连接有连接座,两个连接座之间连接有能沿着连接座长度方向移动的横梁,横梁上连接有能沿着横梁长度方向移动的滑动座；定位组件,定位组件包括定位板,定位板连接在滑动座上侧,定位板的一端向前伸出横梁外；本发明实现折弯板的自动定位,定位准确。(The invention discloses a rear material blocking and positioning device for a bending machine, which comprises a supporting assembly, wherein the supporting assembly comprises a rack, the inner sides of the left end and the right end of the rack are fixedly connected with connecting seats, a cross beam capable of moving along the length direction of the connecting seats is connected between the two connecting seats, and a sliding seat capable of moving along the length direction of the cross beam is connected onto the cross beam; the positioning assembly comprises a positioning plate, the positioning plate is connected to the upper side of the sliding seat, and one end of the positioning plate extends forwards out of the cross beam; the invention realizes the automatic positioning of the bent plate and has accurate positioning.)

1. The utility model provides a bender is with keeping off material positioner afterwards which characterized in that: which comprises the steps of preparing a mixture of a plurality of raw materials,

the supporting component (100) comprises a rack (101), the inner sides of the left end and the right end of the rack (101) are fixedly connected with connecting seats (104), a cross beam (102) capable of moving along the length direction of the connecting seats (104) is connected between the two connecting seats (104), and a sliding seat (403) capable of moving along the length direction of the cross beam (102) is connected to the cross beam (102);

the positioning assembly (400), the positioning assembly (400) includes a positioning plate (401), the positioning plate (401) is connected on the upper side of the sliding seat (403), and one end of the positioning plate (401) extends forwards out of the cross beam (102).

2. The back stop positioning device for the bending machine according to claim 1, characterized in that: the beam (102) is connected with a first driving assembly (300) for driving the positioning plate (401) to move.

3. The back stop positioning device for the bending machine according to claim 2, characterized in that: the lower side of the other end of the positioning plate (401) is fixedly connected with an intermediate plate (404), the first driving assembly (300) comprises a first driving motor (303) fixedly connected to the intermediate plate (404), a moving gear (301) is connected to the first driving motor (303), a fixed rack (302) is fixedly connected to one backward end of the cross beam (102), and the moving gear (301) is meshed with the fixed rack (302).

4. The back stop positioning device for the bending machine according to any one of claims 1 to 3, characterized in that: the device is characterized by further comprising a second driving assembly (200) used for driving the cross beam (102) to move, a baffle (103) is fixed at the front end of the rack (101), the second driving assembly (200) comprises a fixing support (202) fixed on the rear side of the baffle (103), a second driving motor (206) is connected on the rear side of the fixing support (202), horizontal lead screws (211) are rotatably connected on the connecting seats (104), a first driven wheel (215) and a second driven wheel (216) are respectively connected on the two horizontal lead screws (211), the first driven wheel (215) and the second driven wheel (216) are both arranged in front of the connecting seats (104), a first driving wheel (214) is connected on the second driving motor (206), the first driving wheel (214) is respectively connected with the first driven wheel (215) and the second driven wheel (216) through a synchronous belt (201), and a horizontal sliding block (208) is slidably connected at one end, opposite to the two connecting seats (104), the horizontal sliding block (208) is connected with a moving seat (210), and the moving seat (210) is in threaded connection with a horizontal lead screw (211).

5. The back stop positioning device for the bending machine according to claim 4, characterized in that: the rear side of the fixed support (202) is connected with a connecting plate (205) with adjustable height, the second driving motor (206) is fixedly connected onto the connecting plate (205), the fixed support (202) above the first driving wheel (214) is rotatably connected with a first idle wheel (213) and a second idle wheel (212), and the first driving wheel (214) is respectively connected with the first idle wheel (213), a first driven wheel (215), a second driven wheel (216) and the second idle wheel (212) through a synchronous belt (201).

6. The back stop positioning device for the bending machine according to claim 5, characterized in that: the connecting plate (205) is provided with at least two first adjusting grooves (204), the at least two first adjusting grooves (204) are symmetrically arranged relative to the center of the connecting plate (205) in the left-right direction, and one end of the fixed support (202) opposite to the connecting plate (205) is provided with a first connecting hole (203) corresponding to the first adjusting groove (204).

7. The back stop positioning device for the bending machine according to claim 5, characterized in that: still including the tight subassembly (600) that rises that can rise synchronous belt (201) in step, the tight subassembly (600) that rises includes fixing base (614), be connected with on fixing base (614) and be reverse movement's the first tight idler that rises (609) and the tight idler of second rise (604) of second rise in step in the direction of height, the lower edge of first tight idler that rises (609) compresses tightly the upside at synchronous belt (201), the second rises to rise the upper edge of idler (604) and compresses tightly the downside at synchronous belt (201).

8. The back stop positioning device for the bending machine according to claim 7, characterized in that: the fixed seat (614) is connected with a first lifting plate (607) and a second lifting plate (601) which can move up and down, the first tensioning idler wheel (609) is rotatably connected to the first lifting plate (607), the second tensioning idler pulley (604) is rotatably connected to the second lifting plate (601), one end of the first lifting plate (607) arranged opposite to the second lifting plate (601) is connected with a first rack (606), one end of the second lifting plate (601) arranged opposite to the first lifting plate (607) is connected with a second rack (605), the fixed seat (614) is rotatably connected with a transmission gear (608), one end of the transmission gear (608) is meshed with the first rack (606), the other end of the transmission gear (608) is meshed with the second rack (605), the fixed seat (614) is connected with a floating piece, and the output end of the floating piece is connected with the second lifting plate (601).

9. The back stop positioning device for the bending machine according to claim 8, characterized in that: the floating piece is a hydraulic buffer (603), a buffer rod (602) is connected to the hydraulic buffer (603), the buffer rod (602) is an output end of the floating piece, and one end, extending upwards, of the buffer rod (602) is connected with the second lifting plate (601).

10. The back stop positioning device for the bending machine according to any one of claims 1 to 3, characterized in that: the lifting mechanism is characterized by further comprising a third driving assembly (500) for driving the cross beam (102) to lift, wherein the cross beam (102) is provided with a mounting cavity, two ends of the lower side of the cross beam (102) are fixedly connected with a vertically arranged lifting seat (105) respectively, the third driving assembly (500) comprises a vertical lead screw (515) rotatably connected to the lifting seat (105) and a fixing plate (517) fixed at the rear end of the cross beam (102), the fixing plate (517) is connected with a vertical plate (518) with adjustable height, the upper side of the vertical plate (518) is fixedly connected with a wheel shaft plate (507), a mounting opening (102a) is formed in the rear side of the cross beam (102), one end of the wheel shaft plate (507) extends into the mounting cavity through the mounting opening (102a), the other end of the wheel shaft plate (507) is arranged behind the cross beam (102), a motor plate with adjustable positions in the front and rear direction is connected to the wheel shaft plate (507), and a third driving motor (502) is fixed on the motor plate, the driving device is characterized in that a second driving wheel (510) is connected to the third driving motor (502), a first wheel shaft (521) and a second wheel shaft (522) are connected to a wheel shaft plate (507) in the installation cavity, the first wheel shaft (521) and the second wheel shaft (522) are respectively connected with a third idler wheel (503) and a fourth idler wheel (506), one ends, extending into the installation cavity, of the two vertical lead screws (515) are respectively connected with a first driving wheel (504) and a second driving wheel (501), and the second driving wheel (510) is connected with the third idler wheel (503), the first driving wheel (504), the second driving wheel (501) and the fourth idler wheel (506) through a driving belt (505).

Technical Field

The invention relates to the technical field of bending equipment, in particular to a rear material blocking and positioning device for a bending machine.

Background

In the processing of the bending machine, the positioning precision of the plate is very important, and the positioning edge and the bending edge mostly have tolerance requirements. In the traditional technology, manual feeding is adopted, so that an operator can carefully place the plate on a specified position, and large impact force is not generated between a positioning edge and a positioning block. In the prior art, a rear material blocking device is arranged on a bending machine to position a thin plate to be bent, the thin plate can move left and right, the position of a positioning plate can be automatically adjusted according to the left and right positions of the thin plate, and accurate positioning cannot be achieved when the height position of the thin plate changes or the thin plate is not placed in place in the front and rear directions.

Disclosure of Invention

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.

The present invention has been made in view of the above and/or other problems associated with the prior art belt drive.

Therefore, the invention aims to provide the rear material blocking and positioning device for the bending machine, which can realize position adjustment of the positioning plate in multiple directions and is accurate in positioning.

In order to solve the technical problems, the invention provides the following technical scheme: a rear material blocking and positioning device for a bending machine, which comprises,

the supporting assembly comprises a rack, the inner sides of the left end and the right end of the rack are fixedly connected with connecting seats, a cross beam capable of moving along the length direction of the connecting seats is connected between the two connecting seats, and a sliding seat capable of moving along the length direction of the cross beam is connected to the cross beam;

and the positioning assembly comprises a positioning plate, the positioning plate is connected to the upper side of the sliding seat, and one end of the positioning plate extends forwards out of the cross beam.

As an optimal scheme of the back stop positioning device for the bending machine, the invention comprises the following steps: the beam is connected with a first driving assembly for driving the positioning plate to move.

As an optimal scheme of the back stop positioning device for the bending machine, the invention comprises the following steps: the lower side of the other end of the positioning plate is fixedly connected with an intermediate plate, the first driving assembly comprises a first driving motor fixedly connected to the intermediate plate, a moving gear is connected to the first driving motor, a fixed rack is fixedly connected to one backward end of the cross beam, and the moving gear is meshed with the fixed rack.

As an optimal scheme of the back stop positioning device for the bending machine, the invention comprises the following steps: the movable horizontal driving mechanism comprises a frame, and is characterized by further comprising a second driving assembly used for driving the cross beam to move, a baffle is fixed at the front end of the frame, the second driving assembly comprises a fixing support fixed on the rear side of the baffle, the rear side of the fixing support is connected with a second driving motor, a horizontal lead screw is rotatably connected onto the connecting seat, a first driven wheel and a second driven wheel are connected onto the two horizontal lead screws respectively, the first driven wheel and the second driven wheel are located in front of the connecting seat, a first driving wheel is connected onto the second driving motor, the first driving wheel is connected with the first driven wheel and the second driven wheel respectively through a synchronous belt, a horizontal sliding block is slidably connected to one end, opposite to the two connecting seats, of the horizontal sliding block, a moving seat is connected onto the horizontal sliding block, and the moving seat is in threaded connection with the horizontal lead screw.

As an optimal scheme of the back stop positioning device for the bending machine, the invention comprises the following steps: the utility model discloses a high-speed driving wheel, including fixed bolster, second driving motor, first idler and second idler, fixed bolster rear side is connected with height-adjustable's connecting plate, second driving motor fixed connection is on the connecting plate, rotationally be connected with first idler and second idler on the fixed bolster of first action wheel top, first action wheel is connected with first idler, first driven wheel, second driven wheel and second idler respectively through the hold-in range.

As an optimal scheme of the back stop positioning device for the bending machine, the invention comprises the following steps: the connecting plate is provided with at least two first adjusting grooves which are symmetrically arranged relative to the center of the connecting plate in the left-right direction, and one end of the fixed support, opposite to the connecting plate, is provided with a first connecting hole corresponding to the first adjusting grooves.

As an optimal scheme of the back stop positioning device for the bending machine, the invention comprises the following steps: the synchronous belt tensioning device is characterized by further comprising a tensioning assembly capable of synchronously tensioning the synchronous belt, the tensioning assembly comprises a fixed seat, a first tensioning idler wheel and a second tensioning idler wheel which synchronously move in the height direction in a reverse direction are connected to the fixed seat, the lower edge of the first tensioning idler wheel is tightly pressed on the upper side of the synchronous belt, and the upper edge of the second tensioning idler wheel is tightly pressed on the lower side of the synchronous belt.

As an optimal scheme of the back stop positioning device for the bending machine, the invention comprises the following steps: the lifting mechanism is characterized in that a first lifting plate and a second lifting plate which can move up and down are connected onto the fixing base, the first tensioning idler wheel is rotatably connected onto the first lifting plate, the second tensioning idler wheel is rotatably connected onto the second lifting plate, one end of the first lifting plate, which is arranged relative to the second lifting plate, is connected with a first rack, one end of the second lifting plate, which is arranged relative to the first lifting plate, is connected with a second rack, the fixing base is rotatably connected with a transmission gear, one end of the transmission gear is meshed with the first rack, the other end of the transmission gear is meshed with the second rack, a floating part is connected onto the fixing base, and the output end of the floating part is connected with the second lifting plate.

As an optimal scheme of the back stop positioning device for the bending machine, the invention comprises the following steps: the floating piece is a hydraulic buffer, a buffer rod is connected to the hydraulic buffer, the buffer rod is the output end of the floating piece, and the end, extending upwards, of the buffer rod is connected with the second lifting plate.

As an optimal scheme of the back stop positioning device for the bending machine, the invention comprises the following steps: the lifting mechanism further comprises a third driving assembly for driving the cross beam to lift, the cross beam is provided with an installation cavity, two ends of the lower side of the cross beam are respectively and fixedly connected with a vertically arranged lifting seat, the third driving assembly comprises a vertical screw rod rotatably connected to the lifting seat and a fixing plate fixed at the rear end of the cross beam, a vertical plate with adjustable height is connected to the fixing plate, a wheel shaft plate is fixedly connected to the upper side of the vertical plate, an installation opening is formed in the rear side of the cross beam, one end of the wheel shaft plate extends into the installation cavity through the installation opening, the other end of the wheel shaft plate is arranged behind the cross beam, a motor plate with adjustable position in the front-rear direction is connected to the wheel shaft plate, a third driving motor is fixed to the motor plate, a second driving wheel is connected to the third driving motor, a first wheel shaft and a second wheel shaft are connected to the wheel shaft plate in the installation cavity, and a third idler wheel shaft and a fourth idler wheel are respectively connected to the first wheel shaft and the second wheel shaft, one ends of the two vertical screw rods extending into the mounting cavity are respectively connected with a first driving wheel and a second driving wheel, and the second driving wheel is connected with a third idle wheel, the first driving wheel, the second driving wheel and a fourth idle wheel through a driving belt.

The invention has the beneficial effects that: the combined arrangement of the first driving assembly, the second driving assembly and the third driving assembly realizes the position adjustment of the positioning plate in the front-back, left-right and height directions, meets the positioning of different positions, is convenient to position, realizes the synchronous rotation of two horizontal lead screws through a synchronous belt in the structure that a cross beam moves back and forth, and has adjustable tightness; in the running process of the synchronous belt, the tensioning assembly can automatically tension the synchronous belt; the long-distance synchronous belt can shake strongly in the running process, the tension assembly can also prevent the driving belt in the running from shaking up and down, the driving belt can be kept running stably in the accelerating process, and the working reliability is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:

fig. 1 is a front view of a first embodiment of the present invention.

Fig. 2 is a rear view of the first embodiment of the present invention.

Fig. 3 is a perspective view showing a structure of a first embodiment of the present invention.

Fig. 4 is a perspective view of the present invention with the positioning assembly and the cross member hidden.

Fig. 5 is a partial enlarged view of a portion a in fig. 4.

Fig. 6 is a three-dimensional structure view of the connection between the vertical screw and the lifting base.

Fig. 7 is a three-dimensional structure view of the connection between the horizontal screw and the connecting base.

Fig. 8 is a rear view of a second embodiment of the present invention.

Fig. 9 is a first perspective view of a second driving assembly according to the present invention.

Fig. 10 is a second perspective view of the second driving assembly according to the present invention.

Fig. 11 is a perspective view showing a structure of a second embodiment of the present invention.

Fig. 12 is a perspective view showing a structure of a third embodiment of the present invention.

In the figure, a 100 supporting component, a 101 frame, a 102 cross beam, a 102a mounting port, a 103 baffle, a 104 connecting seat, a 105 lifting seat, a 200 second driving component, a 201 synchronous belt, a 202 fixed bracket, a 203 first connecting hole, a 204 first adjusting groove, a 205 connecting plate, a 206 second driving motor, a 207 sliding rail, a 208 horizontal sliding block, a 209 moving plate, a 210 moving seat, a 211 horizontal lead screw, a 212 first idle wheel, a 213 second idle wheel, a 214 first driving wheel, a 215 first driven wheel, a 216 second driven wheel, a 300 first driving component, a 301 moving gear, a 302 fixed gear, a 303 first driving motor, a 400 positioning component, a 401 positioning plate, a 402 fixed rail, a sliding seat, a 404 middle plate, a 500 third driving component, a 501 second driving wheel, a 502 third driving motor, a 503 third idle wheel, a 504 first driving wheel, a 505 driving belt, a 506 fourth idle wheel, a 507 wheel shaft plate, a 508 second adjusting groove, a 509 second connecting hole, 510 a second driving wheel, 511a lifting blocks, 511a connecting parts, 512 reinforcing plates, 513 lifting rams, 514 vertical guide rails, 515 vertical screw rods, 516 transmission seats, 517 fixing plates, 518 vertical plates, 519 third connecting holes, 520 third adjusting grooves, 521 first wheel shafts, 522 second wheel shafts, 600 tensioning components, 601 second lifting plates, 602 buffer rods, 603 hydraulic buffers, 604 second tensioning idler wheels, 605 second racks, 606 first racks, 607 first lifting plates, 608 transmission gears, 609 first tensioning idler wheels, 610 first sliding blocks, 611 second sliding blocks, 612 second guide rails, 613 first guide rails, 614 fixed seats and 615 buffer plates.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1 to 7, a first embodiment of the present invention provides a back stop positioning device for a bending machine, which can position a bent plate, automatically adjust the position of a positioning plate 401 according to the position of the bent plate, and is convenient and accurate to position.

The back stock stop positioning device for the bending machine comprises a supporting assembly 100 and a positioning assembly 400, wherein the supporting assembly 100 comprises a rack 101, the inner sides of the left end and the right end of the rack 101 are fixedly connected with connecting seats 104, a cross beam 102 capable of moving along the length direction of the connecting seats 104 is connected between the two connecting seats 104, and a sliding seat 403 capable of moving along the length direction of the cross beam 102 is connected onto the cross beam 102; the positioning assembly 400 includes a positioning plate 401, the positioning plate 401 is connected to the upper side of the sliding seat 403, and one end of the positioning plate 401 extends forward out of the cross beam 102.

Further, a middle plate is fixedly connected to the lower side of the other end of the positioning plate 401, a fixed rail 402 is fixed to the upper side of the cross beam 102, the sliding seat 403 is slidably connected to the fixed rail 402, a first driving assembly 300 for driving the positioning plate 401 to move is connected to the cross beam 102, the first driving assembly 300 comprises a first driving motor 303 fixedly connected to the middle plate, a moving gear 301 is connected to the first driving motor 303, a fixed rack 302 is fixedly connected to the backward end of the cross beam 102, and the moving gear 301 is meshed with the fixed rack 302.

Further, the device comprises a second driving assembly 200 for driving the beam 102 to move, the front end of the frame 101 is fixed with the baffle 103, the second driving assembly 200 comprises a fixed support 202 fixed at the rear side of the baffle 103, the rear side of the fixed support 202 is connected with a second driving motor 206, the connecting seats 104 are rotatably connected with horizontal lead screws 211, two horizontal lead screws 211 are respectively connected with a first driven wheel 215 and a second driven wheel 216, the first driven wheel 215 and the second driven wheel 216 are both arranged in front of the connecting seats 104, the second driving motor 206 is connected with a first driving wheel 214, the first driving wheel 214 is respectively connected with the first driven wheel 215 and the second driven wheel 216 through a synchronous belt 201, one ends of the two connecting seats 104, which are arranged oppositely, are fixedly connected with slide rails 207, the slide rails 207 are slidably connected with horizontal slide blocks 208, and the outer sides of the horizontal slide blocks 208 are fixedly connected with a moving plate 209, the horizontal sliding block 208 is connected with a moving seat 210, and the moving seat 210 is in threaded connection with a horizontal lead screw 211.

Further, a connecting plate 205 with adjustable height is connected to the rear side of the fixing bracket 202, the second driving motor 206 is fixedly connected to the connecting plate 205, a first idle wheel 212 and a second idle wheel 213 are rotatably connected to the fixing bracket 202 above the first driving wheel 214, and the first driving wheel 214 is respectively connected to the first idle wheel 212, the first driven wheel 215, the second driven wheel 216 and the second idle wheel 213 through a synchronous belt 201.

Furthermore, at least two first adjusting grooves 204 are formed in the connecting plate 205, the at least two first adjusting grooves 204 are symmetrically arranged with respect to the center of the connecting plate 205 in the left-right direction, and a first connecting hole 203 corresponding to the first adjusting groove 204 is formed in one end of the fixing bracket 202 opposite to the connecting plate 205.

Further, the device comprises a third driving assembly 500 for driving the beam 102 to ascend and descend, wherein the beam 102 is provided with a mounting cavity, two ends of the lower side of the beam 102 are fixedly connected with a vertically arranged lifting seat 105 respectively, the third driving assembly 500 comprises a vertical lead screw 515 rotatably connected to the lifting seat 105 and a fixing plate 517 fixed at the rear end of the beam 102, the fixing plate 517 is connected with a vertical plate 518 with adjustable height, the upper side of the vertical plate 518 is fixedly connected with a wheel axle plate 507, the rear side of the beam 102 is provided with a mounting opening 102a, one end of the wheel axle plate 507 extends into the mounting cavity through the mounting opening 102a, the other end of the wheel axle plate 507 is arranged behind the beam 102, the wheel axle plate 507 is connected with a motor plate with adjustable position in the front-rear direction, the motor plate is provided with at least two second adjusting grooves 508, and the at least two second adjusting grooves 508 are symmetrically arranged around the center of the motor plate in the left-right direction, a second connecting hole 509 corresponding to the second adjusting groove 508 is formed in the axle plate 507, at least two third adjusting grooves 520 are formed in the vertical plate 518, a third connecting hole 519 corresponding to the third adjusting grooves 520 is formed in the fixing plate 517, a third driving motor 502 is fixed on the motor plate, a second driving wheel 510 is connected on the third driving motor 502, a first axle 521 and a second axle 522 are connected on the axle plate 507 in the installation cavity, a third idler wheel 503 and a fourth idler wheel 506 are respectively connected on the first axle 521 and the second axle 522, one ends of the two vertical lead screws 515 extending into the installation cavity are respectively connected with a first driving wheel 504 and a second driving wheel 501, the second driving wheel 510 is connected with the third idler wheel 503, the first driving wheel 504, the second driving wheel 501 and the fourth idler wheel 506 through a driving belt 505, a lifting block 511 is connected on the vertical lead screw 515 in a threaded manner, the lower part of the lifting block 511 is provided with a connecting part 511a, the lifting block is sleeved with a transmission seat 516, the transmission seat 516 is fixedly connected to the connecting part 511a, and the transmission seat 516 is fixedly connected to the outer side of the moving plate 209.

Each part for driving the vertical screw 515 to rotate is arranged in the cross beam 102, the structure is compact, other space is not occupied, the position of the vertical plate 518 is adjusted according to the installation requirement of the transmission belt 505 in the height direction, fixing bolts at the third adjusting groove 520 and the third connecting hole 519 are loosened, the position of the vertical plate 518 in the height direction is adjusted, the height of the vertical plate 518 determines the height of the second driving wheel 510, the position adjustment of the transmission belt 505 in the height direction is realized, the tightness adjustment of the transmission belt 505 is preliminarily realized, the fixing bolts are screwed, the fixing of the vertical plate 518 is realized, then the fixing bolts penetrating through the second adjusting groove 508 and the second connecting hole 509 are loosened by adjusting the position of the motor plate, the motor plate is translated back and forth, when the position of the transmission belt 505 in the front and back direction is adjusted to a proper position, the tightness of the transmission belt 505 is further adjusted, and each fixing bolt is screwed, the motor plate is fixed, and the tightness of the transmission belt 505 is convenient to adjust.

Furthermore, vertical guide rails 514 are fixedly connected to the front side and the rear side of the lifting seat 105, a lifting ram 513 is slidably connected to the vertical guide rails 514, a reinforcing plate 512 is fixedly connected to the outer side of the lifting ram 513, and the reinforcing plate 512 is fixedly connected with the moving plate 209; through the combined arrangement of the vertical guide rail 514, the lifting ram 513 and the reinforcing plate 512, the lifting seat 105 can move more stably in the height direction, the lifting seat 105 is further prevented from moving in the left and right directions, and the reliability of the lifting action is improved.

Example 2

Referring to fig. 8 to 11, a second embodiment of the present invention provides a back stop positioning device for a bending machine, which is different from the first embodiment in that the back stop positioning device further includes a tension assembly 600 capable of synchronously tensioning a synchronous belt 201, the tension assembly 600 includes a fixed seat 614 fixed on the back side of the baffle 103, the fixed seat 614 is connected with a first tension idler 609 and a second tension idler 604 which synchronously move in a reverse direction in the height direction, a lower edge of the first tension idler 609 is pressed against an upper side of the synchronous belt 201, and an upper edge of the second tension idler 604 is pressed against a lower side of the synchronous belt 201.

Further, a first guide rail 613 and a second guide rail 612 which are arranged at an interval in the left-right direction are fixedly connected to the fixed seat 614, a first slider 610 is slidably connected to the first guide rail 613, a second slider 611 is slidably connected to the second guide rail 612, a first lifting plate 607 is fixedly connected to the outer side of the first slider 610, a second lifting plate 601 is fixedly connected to the outer side of the second slider 611, the first idler tensioner 609 is rotatably connected to the first lifting plate 607, the second idler tensioner 604 is rotatably connected to the second lifting plate 601, a first rack 606 is connected to one end of the first lifting plate 607, which is opposite to the second lifting plate 601, a second rack 605 is connected to one end of the second lifting plate 601, a transmission gear 608 is rotatably connected to the fixed seat 614, one end of the transmission gear 608 is engaged with the first rack 606, the other end of the transmission gear 608 is engaged with the second rack 605, the fixing seat 614 is connected with a floating member, an output end of the floating member is connected with the second lifting plate 601, in this embodiment, the floating member is a hydraulic buffer 603, the hydraulic buffer 603 is connected with a buffer rod 602, the buffer rod 602 is an output end of the floating member, one side of the second lifting plate 601, which is far away from the first lifting plate 607, is fixedly connected with a buffer plate 615, and one end, which extends upwards, of the buffer rod 602 abuts against the lower side of the buffer plate 615.

When the synchronous belt 201 is in a tensioning state, the position of the floating piece in the height direction is adjusted, so that the acting force of the synchronous belt 201 on the second idle wheel 213 and the upward force of the buffer rod 602 are just in a balance state; after long-time running, the synchronous belt 201 is loosened, the force acting on the second idle wheel 213 is reduced, the force acting on the buffer rod 602 cannot be balanced, the buffer rod 602 is popped up, the buffer rod 602 pushes the second lifting plate 601 to rise, the second lifting plate 601 drives the second rack 605 and the second idle wheel 213 to rise, the second rack 605 drives the transmission gear 608 to rotate, the transmission gear 608 drives the first rack 606 to move, the moving directions of the first rack 606 and the second rack 605 are opposite and the moving distances are the same, until the force acting on the second idle wheel 213 by the synchronous belt 201 and the force acting on the second lifting plate 601 by the buffer rod 602 keep balanced again, and the synchronous belt 201 is in a tensioning state again; in addition, the synchronous belt 201 is easy to shake in the running process, particularly in the acceleration process, when shaking occurs, the force of the synchronous belt 201 acting on the second idle pulley 213 changes, the buffer rod 602 senses the change of the acting force and extends upwards or retracts downwards, the synchronous belt 201 in motion is prevented from shaking upwards and downwards, the synchronous belt 201 is kept to run stably in the acceleration process, and the working reliability is improved; it is suitable for long-stroke synchronous transmission.

Example 3

Referring to fig. 12, a third embodiment of the present invention provides a backstop positioning device for a bending machine, which is different from the first and second embodiments in that two fixed rails 402 are fixed on the upper side of the cross beam 102, a sliding seat 403 is slidably connected to each of the two fixed rails 402, and the sliding seat 403 is slidably connected to the fixed rails 402.

The positions and the distances of the two positioning plates 401 are adjusted according to the positions and the lengths of the bending plates, and the positioning reliability is improved.

It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.

It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.