CN217668968U

CN217668968U - Flexible automatic assembly tool for forklift gantry structural part

Info

Publication number: CN217668968U
Application number: CN202221497015.XU
Authority: CN
Inventors: 李金海; 刘海军; 汪存宝; 黄磊
Original assignee: Hefei Taijin Automation Technology Co ltd
Current assignee: Hefei Taijin Automation Technology Co ltd
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2022-10-28
Anticipated expiration: 2032-06-15

Abstract

The utility model relates to the technical field of assembly of forklift portal structural parts, and discloses a flexible automatic assembly tool for forklift portal structural parts, which comprises a conveying platform and a feeding device, wherein the conveying platform is used for conveying portal channel steel; the width positioning mechanism is arranged along the conveying direction of the conveying platform and used for clamping the portal channel steel and adjusting the opening size between the two portal channel steels; the end face positioning mechanism is used for enabling the end faces of the two portal channel steels to be flush; and an entablature assembly positioning mechanism for adjust the relative position between entablature assembly and the portal channel-section steel terminal surface, the utility model discloses can be quick fix a position the portal channel-section steel of different width, different length, positioning accuracy is high, and cooperation conveying platform realizes automatic remodeling, improves production efficiency by a wide margin, improves the product percent of pass, reduces the time of artifical remodeling school to waiting, has the operation stably, and the location is reliable, the characteristics of compatible multiple specification.

Description

Flexible automatic assembly tool for forklift gantry structural part

Technical Field

The utility model relates to a fork truck portal structure equipment technical field specifically is a flexible automatic group of fork truck portal structure is to frock.

Background

The forklift mast is a main bearing structure of the forklift mast taking device, and in the forklift industry, the pairing of the forklift mast is always in a human mode.

As described in the Chinese utility model patent of a forklift gantry assembly line (grant publication No. CN 208427925U): the utility model provides a fork truck portal assembling line, its major structure includes: frame, actuating mechanism, drive mechanism and portal transport mechanism, portal transport mechanism sets up in the frame, actuating mechanism passes through drive mechanism and is connected with the transmission of portal transport mechanism, portal transport mechanism includes conveyer belt and a plurality of drive wheel, the equidistant interval of transmission rod sets up in the frame, the conveyer belt sets up around the transmission rod.

When the utility model is used, workers are required to stand at two sides of the production line, the forklift gantry is conveyed to an appointed station through the conveying belt, and then the workers perform corresponding production operation; this fork truck portal assembly line's drawback lies in: the positioning reference block needs to be replaced manually, the end face positioning and the small piece positioning are both manually pushed for positioning, the positioning error is large, and the precision is not guaranteed; the positioning reference block is worn after long-term use to cause poor repeated positioning consistency and the like; the size needs to be manually and repeatedly corrected, and errors often occur during manual correction, so that the product yield is reduced.

SUMMERY OF THE UTILITY MODEL

For solving present door frame assembly positioning error big, the product percent of pass is low and can't realize the right problem of flexibility, the utility model provides a following technical scheme: flexible automatic group of fork truck portal structure spare is to frock, include

The conveying platform is used for conveying portal channel steel;

at least one width positioning mechanism arranged along the conveying direction of the conveying platform; the width positioning mechanism is used for clamping the portal channel steel and adjusting the opening size between the two portal channel steels;

the end face positioning mechanism is used for enabling the end faces of the two portal channel steels to be flush; and

and the upper beam assembly positioning mechanism is used for adjusting the relative position between the upper beam assembly and the end surface of the portal channel steel.

Preferably, the width positioning mechanism includes:

the two positioning adjusting slide carriages are used for respectively supporting two portal channel steels;

the two clamping components are respectively arranged on the two positioning and adjusting slide carriages and are used for clamping the portal channel steel; and

and the driving part is used for driving the two positioning and adjusting slide carriages to mutually approach or separate along the direction vertical to the conveying direction of the conveying platform.

Preferably, the driving part comprises two trapezoidal lead screws in threaded connection with the two positioning and adjusting slide carriages respectively, and a servo driving system for driving the trapezoidal lead screws to rotate.

The servo driving system can convert electric energy into mechanical energy to drive the trapezoidal screw rod to rotate.

Preferably, the clamping part comprises a positioning shaft and a clamping cylinder which are arranged along the direction vertical to the conveying direction of the conveying platform and fixed on the positioning adjusting slide carriage, and the free end of the clamping cylinder can move towards the positioning shaft and can clamp the portal channel steel.

The clamping cylinder is matched with the positioning shaft to clamp and fix the portal channel steel, so that the phenomenon that the two portal channel steels rock in the width adjusting process is avoided.

Preferably, end face positioning mechanism is including installing the terminal surface base on conveying platform and setting on the terminal surface base is close to portal channel-section steel a side and respectively with two portal channel-section steel position corresponding two detection device that target in place, two detection device's the minimum interval that targets in place is less than the minimum distance that can reach between two portal channel-section steels, two detection device's the maximum interval that targets in place is greater than the maximum distance that can reach between two portal channel-section steels.

The end face base is matched with the in-place detection device to detect the end face position of the portal channel steel, so that the conveying platform stops operating after the end faces of the two portal channel steel are flush.

Preferably, the upper crossbeam assembly positioning mechanism comprises a positioning reference seat which is positioned at the top of the end face base and can slide along the conveying direction of the conveying platform, and a positioning pin shaft which limits the position of the positioning reference seat at the top of the end face base.

The positioning reference seat is matched with the positioning pin shaft to adjust the relative position between the upper crossbeam assembly and the end face of the portal channel steel, so that the position of the upper crossbeam assembly meets the actual production requirement.

Preferably, the conveying platform comprises a frame body, and a plurality of driving rollers and driven rollers which are arranged on the frame body and used for conveying portal channel steel.

The rotation of the driving roller can drive the portal channel steel to move on the frame body, and the driven roller plays a role in assisting the driving roller in conveying the portal channel steel.

Preferably, be provided with on the support body and can slide along conveying platform direction of delivery and be used for adjusting a plurality of removal assistance-localization real-time dollies of portal strengthening rib position, remove assistance-localization real-time dolly and include the third linear guide that sets up along conveying platform direction of delivery, slidable mounting and be used for injecing a plurality of locating pieces of portal strengthening rib position on the third linear guide and install on the third linear guide and along the scale that its length direction set up.

The position of portal strengthening rib can be adjusted to the removal assistance-localization real-time dolly, and the setting of scale for the staff can be accurate adjust the interval between two portal strengthening ribs, and the third linear guide is used for making things convenient for the slip of locating piece.

Preferably, the detection device that targets in place includes that the guide bar passes through the rectangular shape of conveying platform direction of delivery and end face base sliding connection and detects the piece, install on the end face base and be in and detect the proximity switch on piece sliding track and set up and install the straight spring on detecting piece and end face base respectively along the guide bar axial and both ends.

The length of rectangular shape detection piece is unanimous with the width direction of two portal channel-section steels, and two minimum distances that detect the piece are less than the minimum distance that can reach between two portal channel-sections, and two maximum distances that detect the piece are greater than the maximum distance that can reach between two portal channel-sections to after accomplishing the interval adjustment between two portal channel-sections, just can utilize and detect piece cooperation proximity switch and come to target in place two portal channel-sections and detect.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this flexible automatic group of fork truck portal structure spare is to frock through the width positioning mechanism who sets up, utilizes mutually supporting between each parts on it, can be quick carry out the regulation of width to the portal channel-section steel of different width, different length, realizes the flexible group of fork truck portal structure spare and right.

2. This flexible automatic group of fork truck portal structure spare is to frock, can be quick fix a position the portal channel-section steel of different width, different length, and positioning accuracy is high, and cooperation conveying platform realizes automatic remodelling, improves production efficiency by a wide margin, improves the product percent of pass, reduces the time that artifical remodelling school was waited, has the operation stably, and the location is reliable, the characteristics of compatible multiple specification.

3. This flexible automatic group of fork truck portal structure spare is to frock through the detection device that targets in place that sets up to set it to have certain length, thereby just can carry out accurate quick detection to two portal channel-section steels of different width at the position of alignment in-process, reduced the wearing and tearing of terminal surface base, the life-span of extension terminal surface base reduces actual use cost.

Drawings

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

FIG. 2 is a schematic structural view of the width positioning mechanism of the present invention;

fig. 3 is a schematic structural view of the end face positioning mechanism of the present invention;

FIG. 4 is a schematic structural view of the positioning mechanism of the upper beam assembly of the present invention;

FIG. 5 is a schematic structural view of a workpiece according to the present invention;

fig. 6 is a schematic view of the top-view cross-sectional structure of the in-place detection device of the present invention.

In the figure: 100. a conveying platform; 110. a frame body; 120. a drive roll; 130. a driven drum; 200. a width positioning mechanism; 210. positioning and adjusting slide carriages; 220. a clamping member; 221. positioning the shaft; 222. a clamping cylinder; 230. a drive member; 231. a trapezoidal screw rod; 232. a servo drive system; 233. a mechanism seat; 234. a bearing; 235. a first linear guide rail; 300. an end face positioning mechanism; 310. an end face base; 320. an in-place detection device; 321. detecting a sheet; 322. a buffer tank; 323. a guide bar; 324. a straight spring; 325. a proximity switch; 400. an upper beam assembly positioning mechanism; 410. positioning a reference seat; 420. positioning a pin shaft; 430. a second linear guide; 500. moving the auxiliary positioning trolley; 510. a third linear guide rail; 520. positioning a block; 530. a graduated scale; 600. a workpiece; 610. gantry channel steel; 620. a portal reinforcing rib; 630. an upper beam assembly; 640. an end face.

Detailed Description

The present invention will be described in detail with reference to the drawings and specific embodiments, wherein prior to describing the technical aspects of the embodiments of the present invention in detail, the terms and the like are explained, and in the present specification, the components with the same names or the same reference numbers represent the similar or the same structures and are only used for illustrative purposes.

As shown in fig. 1 to 6 the utility model relates to a flexible automatic group of fork truck portal structure spare is to frock, including the conveying platform 100 who is used for carrying portal channel-section steel 610, a width positioning mechanism 200 for pressing from both sides tight portal channel-section steel 610 and adjusting interval between two portal channel-section steels 610, a terminal surface positioning mechanism 300 for making the terminal surface 640 parallel and level of two portal channel-section steels 610, an upper beam assembly positioning mechanism 400 for adjusting the relative position between the terminal surface 640 of upper beam assembly 630 and portal channel-section steel 610 and a plurality of removal assistance-localization real-time dollies 500 that are used for adjusting portal strengthening rib 620 position.

As shown in fig. 5, a workpiece 600 is composed of the portal channel steel 610, the portal reinforcing ribs 620 and the upper crossbeam assembly 630, and the workpiece 600 is the forklift portal structural member of the present invention.

As shown in fig. 1, the conveying platform 100 specifically includes a frame body 110, and a plurality of driving rollers 120 and driven rollers 130 that are disposed on the frame body 110 and used for conveying the gantry channel steel 610, where the driving rollers 120 and the driven rollers 130 are used for supporting the gantry channel steel 610 on one hand and are also the same as the conveying gantry channel steel 610 on the other hand, so that the end surface 640 of the gantry channel steel 610 can contact with the in-place detection device 320, and the end surfaces 640 of the two gantry channel steels 610 can be aligned and level quickly.

As shown in fig. 1 and 2, the width positioning mechanism 200 may be configured to adjust a distance between two gantry channel steels 610, that is, a shift opening size of the two gantry channel steels 610, so as to meet an assembly requirement of different widths, that is, to be compatible with workpieces 600 of various specifications, and mainly includes two positioning adjustment carriages 210 for respectively supporting the two gantry channel steels 610, two clamping members 220 respectively disposed on the two positioning adjustment carriages 210 for clamping the gantry channel steels 610, and a driving member 230 for driving the two positioning adjustment carriages 210 to approach or separate from each other along a direction perpendicular to a conveying direction of the conveying platform 100.

The clamping component 220 mainly comprises a positioning shaft 221 and a clamping cylinder 222, the positioning shaft 221 and the clamping cylinder 222 are arranged along a direction perpendicular to the conveying direction of the conveying platform 100 and are fixed on the positioning adjusting slide carriage 210, when the portal channel steel 610 between the positioning shaft 221 and the clamping cylinder 222 needs to be clamped, only the clamping cylinder 222 needs to be started, so that the free end of the clamping cylinder 222 can slowly move towards the positioning shaft 221 until the free end of the clamping cylinder 222 tightly presses the portal channel steel 610 on the positioning shaft 221, further, cushions can be arranged at the free end of the clamping cylinder 222 and the side face of the positioning shaft 221, which is in contact with the portal channel steel 610, for example, rubber cushions are used for preventing the portal channel steel 610 from being in rigid contact with the free end of the clamping cylinder 222 and the positioning shaft 221, and the way can prevent the portal channel steel 610 from being damaged by scratches and the like.

The driving part 230 comprises two trapezoidal lead screws 231 respectively in threaded connection with the two positioning adjustment slide carriages 210, and a servo driving system 232 for driving the trapezoidal lead screws 231 to rotate, the trapezoidal lead screws 231 are rotatably mounted on a mechanism seat 233 through bearings 234, the mechanism seat 233 can be mounted on the conveying platform 100, and simultaneously, in order to prevent the positioning adjustment slide carriages 210 from rotating along with the trapezoidal lead screws 231, the positioning adjustment slide carriages 210 can be slidably mounted on the mechanism seat 233 through a first linear guide rail 235, so that in practical use, a servo motor in the servo driving system 232 can convert electric energy into mechanical energy to drive the trapezoidal lead screws 231 to rotate, and as the positioning adjustment slide carriages 210 in threaded connection with the trapezoidal lead screws 231 can only perform linear motion along the first linear guide rail 235 under the limitation of the first linear guide rail 235, and cannot perform rotary motion, the rotary motion of the lead screws 231 can be converted into the linear motion of the positioning adjustment slide carriages 210, and adjustment of the distance between the two positioning adjustment slide carriages 210 can be realized, and adjustment of the width between two door frames 610 positioned on the two positioning adjustment slide carriages 210 can be adjusted.

As shown in fig. 1 and 3, the end face positioning mechanism 300 is divided into two parts, namely an end face base 310 and two in-place detection devices 320, wherein the two in-place detection devices 320 are all arranged on one side face, close to the portal channel steel 610, of the end face base 310, the two in-place detection devices 320 are respectively corresponding to the two portal channel steels 610, when the portal channel steel 610 is close to the end face base 310, the in-place detection devices 320 can detect the positions of the portal channel steels 610, the minimum distance between the two in-place detection devices 320 is smaller than the minimum distance capable of being achieved between the two portal channel steels 610, the maximum distance between the two in-place detection devices 320 is larger than the maximum distance capable of being achieved between the two portal channel steels 610, and the maximum distance and the minimum distance capable of being achieved between the two portal channel steels 610 refer to: the maximum and minimum distance between the two gantry channels 610 can be achieved under the driving action of the driving part 230.

As shown in fig. 6, the in-place detection apparatus 320 includes a strip-shaped detection sheet 321 slidably connected to the end-face base 310 through a guide bar 323 along the conveying direction of the conveying platform 100, a proximity switch 325 installed on the end-face base 310 and capable of being triggered by the detection sheet 321, and a straight spring 324 axially installed along the guide bar 323 and having two ends respectively installed on the detection sheet 321 and the end-face base 310, as a preferable mode, a buffer slot 322 may be opened at a position on the end-face base 310 corresponding to the detection sheet 321, and the guide bar 323 and the proximity switch 325 are installed on a side surface of an inner wall of the buffer slot 322 opposite to the detection sheet 321, so that, in an actual in-place detection process, after the door frame channel 610 overcomes the elastic force of the straight spring 324 to push the detection sheet 321 completely into the buffer slot 322, the detection sheet 321 can just trigger the proximity switch 325, and at the same time, because the end-face base 310 limits the door frame 610, after the proximity switch 325 is triggered, the end-face base 310 replaces the detection sheet 321 to support the door frame channel 610, thereby preventing the door frame channel 610 from being damaged by the door frame channel 610; the specific working process of the in-place detection device 320 is as follows: the gantry channel steel 610 contacts with the detection sheet 321 under the action of the driving component 230, then the detection sheet 321 is pushed to overcome the elastic force of the straight spring 324 to move along the axial direction of the guide rod 323, and after the detection sheet 321 contacts with the proximity switch 325, the gantry channel steel 610 at the moment is shown to be in place, so that in-place detection of the gantry channel steel 610 is achieved, and the two gantry channel steels 610 are parallel and level.

As shown in fig. 1 and 4, the upper crossbeam assembly positioning mechanism 400 includes a positioning reference base 410, a positioning pin 420 and a second linear guide 430, the number of the second linear guide 430 is preferably two, the length direction of the second linear guide 430 is identical to the conveying direction of the conveying platform 100, the positioning reference base 410 is slidably mounted on the top of the end surface base 310 through the second linear guide 430, and the positioning pin 420 is used for limiting the position of the positioning reference base 410 on the top of the end surface base 310 and preventing the positioning reference base 410 from sliding freely under the action of the second linear guide 430.

As shown in fig. 1, the mobile auxiliary positioning cart 500 includes a third linear guide 510 disposed along the conveying direction of the conveying platform 100, a plurality of positioning blocks 520 slidably mounted on the third linear guide 510 and used for defining the positions of the gantry reinforcing ribs 620, and a scale 530 mounted on the third linear guide 510 and disposed along the length direction thereof, the number of the positioning blocks 520 should be equal to the number of the gantry reinforcing ribs 620, in the actual use process, the positioning blocks 520, in cooperation with the scale 530, can adjust the positions of the gantry reinforcing ribs 620 on the gantry channel steel 610, and can precisely adjust the distance between two adjacent gantry reinforcing ribs 620.

In this embodiment, when actually assembling the operation, put portal channel-section steel 610 on two positioning adjustment carriage 210 respectively earlier, then adjust the distance between two positioning adjustment carriage 210, also adjust the width between two portal channel-section steels 610, specific process is as follows: the clamping cylinder 222 is started, the free end of the clamping cylinder presses the portal channel steel 610 to the positioning shaft 221, and the portal channel steel 610 is prevented from shifting in the process of adjusting the widths of the two portal channel steels 610; then, a servo driving system 232 is started to drive the trapezoidal screw rod 231 to rotate, and the positioning adjusting slide carriage 210 is matched with the first linear guide rail 235 to convert the rotary motion of the trapezoidal screw rod 231 into linear motion, so that the two positioning adjusting slide carriages 210 are gradually close to or far away from each other, and the width between the two gantry channel steel 610 is adjusted; after the completion, the terminal surface that needs two portal channel-section steels 610 of control aligns each other, and concrete process is as follows: the clamping cylinder 222 is controlled to be in a contraction state, namely, the clamping action of the clamping cylinder 222 on the portal channel steel 610 is released, then the driving roller 120 is started, the driving roller is matched with the driven roller 130 to drive the portal channel steel 610 to gradually move towards the end face base 310, until the in-place detection device 320 detects the two portal channel steels 610, the end portions of the two portal channel steels 610 are flush, then the clamping cylinder 222 is started again, the free end of the clamping cylinder is used for pressing the portal channel steel 610 to the positioning shaft 221, the portal channel steel 610 is clamped again, then the portal reinforcing ribs 620 are placed at the tops of the two portal channel steels 610 and fixed to the two portal channel steels 610, then the upper crossbeam assembly 630 is positioned by the positioning datum seat 410, then the upper crossbeam assembly 630 is fixed to the two portal channel steels 610, and the assembly of the workpiece 600 is completed.

Utilize automatic mechanical structure to replace staff's manual location, make the utility model discloses can be quick fix a position portal channel-section steel 610 to different width, different length, positioning accuracy is high, and automatic the remodeling improves production efficiency by a wide margin, improves the product percent of pass, reduces the time of artifical remodeling school to the waiting, has the operation stably, and the location is reliable, the characteristics of compatible multiple specification.

Finally, it should be noted that: 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 modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. 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. The utility model provides a flexible automatic group of fork truck portal structure is to frock which characterized in that includes:

the conveying platform (100) is used for conveying portal channel steel;

at least one width positioning mechanism (200) arranged along the conveying direction of the conveying platform; the width positioning mechanism is used for clamping the portal channel steel and adjusting the opening size between the two portal channel steels;

the end face positioning mechanism (300) is used for enabling the end faces of the two portal channel steels to be flush; and

and the upper beam assembly positioning mechanism (400) is used for adjusting the relative position between the upper beam assembly and the end surface of the portal channel steel.

2. The flexible automatic pairing tool for the forklift mast structural part according to claim 1, characterized in that: the width positioning mechanism (200) includes:

the two positioning and adjusting slide carriages (210) are used for respectively supporting two portal channel steels;

the two clamping components (220) are respectively arranged on the two positioning and adjusting slide carriages and are used for clamping the portal channel steel; and

and the driving component (230) is used for driving the two positioning and adjusting carriages to mutually approach or separate along the direction vertical to the conveying direction of the conveying platform (100).

3. The flexible automatic assembly tool for the forklift gantry structural member according to claim 2, characterized in that: the driving part (230) comprises two trapezoidal screw rods (231) which are respectively in threaded connection with the two positioning and adjusting slide carriages (210), and a servo driving system (232) for driving the trapezoidal screw rods (231) to rotate.

4. The flexible automatic pairing tool for the forklift mast structural part according to claim 2 or 3, characterized in that: the clamping component (220) comprises a positioning shaft (221) and a clamping cylinder (222), wherein the positioning shaft (221) and the clamping cylinder are arranged in the direction perpendicular to the conveying direction of the conveying platform (100) and fixed on the positioning adjusting slide carriage, and the free end of the clamping cylinder can move towards the positioning shaft and can clamp the portal channel steel.

5. The flexible automatic pairing tool for the forklift mast structural part according to claim 1, characterized in that: terminal surface positioning mechanism (300) are including installing terminal surface base (301) on conveying platform (100) and setting on the terminal surface base is close to portal channel-section steel one side and targets in place detection device (320), two corresponding two with two portal channel-section steel positions respectively the minimum interval that targets in place detection device is less than the minimum distance that can reach between two portal channel-sections, two the maximum interval that targets in place detection device is greater than the maximum distance that can reach between two portal channel-sections.

6. The flexible automatic assembly tool for the forklift gantry structural member according to claim 5, wherein the flexible automatic assembly tool comprises: the upper crossbeam assembly positioning mechanism (400) comprises a positioning reference seat (410) which is positioned at the top of the end face base and can slide along the conveying direction of the conveying platform (100), and a positioning pin shaft (420) which limits the position of the positioning reference seat at the top of the end face base.

7. The flexible automatic assembly tool for the forklift gantry structural member according to claim 1, characterized in that: the conveying platform (100) comprises a frame body (110), and a plurality of driving rollers (120) and driven rollers (130) which are arranged on the frame body and used for conveying portal channel steel.

8. The flexible automatic pairing tool for the forklift mast structural part according to claim 7, characterized in that: the rack body (110) is provided with a plurality of mobile auxiliary positioning trolleys (500) which can slide along the conveying direction of the conveying platform (100) and are used for adjusting the positions of the portal reinforcing ribs, and each mobile auxiliary positioning trolley comprises a third linear guide rail (510) arranged along the conveying direction of the conveying platform, a plurality of positioning blocks (520) which are slidably mounted on the third linear guide rail and are used for limiting the positions of the portal reinforcing ribs and a graduated scale (530) which is mounted on the third linear guide rail and is arranged along the length direction of the third linear guide rail.

9. The flexible automatic assembly tool for the forklift gantry structural member according to claim 5, wherein the flexible automatic assembly tool comprises: the in-place detection device (320) comprises a strip-shaped detection piece (321) which is connected with the end face base in a sliding mode along the conveying direction of the conveying platform through a guide rod (323), a proximity switch (325) which is installed on the end face base and can be triggered by the detection piece, and a straight spring (324) which is axially arranged along the guide rod and two ends of which are respectively installed on the detection piece and the end face base.