CN109396824B - Assembling table for front frame of special vehicle - Google Patents
Assembling table for front frame of special vehicle Download PDFInfo
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- CN109396824B CN109396824B CN201710714365.4A CN201710714365A CN109396824B CN 109396824 B CN109396824 B CN 109396824B CN 201710714365 A CN201710714365 A CN 201710714365A CN 109396824 B CN109396824 B CN 109396824B
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- 230000007246 mechanism Effects 0.000 claims abstract description 148
- 210000001503 joint Anatomy 0.000 claims abstract description 3
- 244000261422 Lysimachia clethroides Species 0.000 claims description 44
- 238000003825 pressing Methods 0.000 claims description 25
- 230000006835 compression Effects 0.000 claims description 18
- 238000007906 compression Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 5
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
- B23P2700/50—Other automobile vehicle parts, i.e. manufactured in assembly lines
Abstract
The invention provides an assembly table of a front frame of a special vehicle, which comprises a front end beam, two small main beams, a cross beam and a cross frame positioned between the two small main beams, wherein the assembly table of the front frame of the special vehicle comprises the following components: a base; the front end beam positioning mechanism is arranged at the front end of the base and used for positioning the front end beam; the centering clamping mechanism is used for clamping the two small main beams and determining the width between the two small main beams; the well frame positioning mechanism is arranged on the base and matched with the middle gap of the well frame; the beam positioning mechanism is arranged along the longitudinal direction of the base; the rotary lifting roller way mechanism comprises two roller ways, each roller way is used for conveying a small main beam, and the rotary lifting roller way mechanism is in butt joint with a fixed conveying roller way arranged at the rear end of the base. The assembling table of the front frame of the special vehicle improves the production efficiency and the assembling precision of front frame manufacture.
Description
Technical Field
The invention relates to the field of special vehicle manufacturing, in particular to an assembly table of a front frame of a special vehicle.
Background
A special vehicle is a vehicle for carrying a special transportation task or a special job, for example, a vehicle of a type such as a dump truck, a full trailer, a semitrailer, or the like.
Generally, the front frame of the semi-trailer comprises a front end beam, two small main beams, a cross beam and a cross beam positioned between the two small main beams. In the assembly process of the front frame of the traditional semitrailer, generally, each part is assembled one by one, namely, two parts are assembled first, a product formed by assembling the two parts is assembled with a third part, for example, two small main beams and a cross beam are assembled first, and then the cross beam is assembled with the front end beam. The assembly mode has low speed and low efficiency. And in the part positioning process, the positioning accuracy can not be ensured, for example, in the positioning process of two small main beams of a front frame, two small main beams of the front frame are respectively hung on two positioning stations through a crane, one small main beam is fixed, the other small main beam is pushed by a cylinder, so that the distance between the two small main beams is adjusted, rough positioning can be realized by the positioning mode, and the positioning accuracy can not be ensured.
Disclosure of Invention
The invention provides an assembly table for a front frame of a special vehicle, which aims to solve the problems of low assembly speed, low efficiency and inaccurate positioning of the front frame in the prior art.
The invention provides an assembly table of a front frame of a special vehicle, which comprises a front end beam, two small main beams, a cross beam and a cross frame positioned between the two small main beams, wherein the assembly table of the front frame of the special vehicle comprises:
a base;
the front end beam positioning mechanism is arranged at the front end of the base and used for positioning the front end beam;
The centering clamping mechanism is used for clamping the two small main beams and determining the width between the two small main beams;
The well head frame positioning mechanism is arranged on the base and matched with the middle gap of the well head frame so as to determine the position of the well head frame in the front frame of the special vehicle;
The beam positioning mechanism is arranged along the longitudinal direction of the base, the beam positioning assembly comprises a plurality of beam positioning tables which are arranged at intervals along the longitudinal direction of the base, and the position of the beam in the front frame of the special vehicle is determined through the beam positioning tables;
The rotary lifting roller way mechanism comprises two roller ways, each roller way is used for conveying a small main beam, each roller way comprises a plurality of rotary lifting assemblies which are distributed at intervals along the longitudinal direction of the base, and the rotary lifting roller way mechanism is in butt joint with a fixed conveying roller way arranged at the rear end of the base, so that the small main beams can enter from the rear end through the rotary lifting roller way mechanism.
Optionally, the front end beam positioning mechanism includes two tight cylinders that set up in the base front end and respectively with the two angle locking position devices of the two angle lock complex of front end beam, every angle locking position device include the cylinder and with corresponding angle lock complex arch, under the drive of cylinder, protruding with hole cooperation in the angle lock.
Optionally, the centering clamping mechanism is three sets, and three sets of centering clamping mechanisms are followed the longitudinal direction interval of base is laid, three sets of centering clamping mechanism correspond the clamp down front end, middle part and the rear end of two little girders, and every centering clamping mechanism includes the motor, sets up the support of motor top and sets up two clamping blocks on the support, two clamping blocks set up relatively and can follow transverse direction motion under the drive of motor.
Optionally, the assembling table of the front frame of the special vehicle further comprises a first vertical pressing mechanism and a second vertical pressing mechanism for pressing the two small main beams in the height direction;
The two first vertical pressing mechanisms are respectively arranged at one side of the two small main beams to be positioned and close to the front end beam to be positioned, the first vertical pressing mechanisms firstly contact the front end beam and press the front end beam in the pressing down process, then simultaneously contact and press the front end beam and the small main beams, the bottom surfaces of the front end beams face upwards and are positioned at the front end beam to be positioned through the front end beam positioning mechanisms, and the bottom surfaces of the two small main beams face upwards and are positioned at the corresponding small main beam to be positioned through the centering clamping mechanisms;
The second vertical compression mechanisms are two sets, each set comprises two second vertical compression mechanisms respectively used for compressing the small main beams, one set of second vertical compression mechanism is used for compressing the middle parts of the small main beams, and the other set of second vertical compression mechanism is used for compressing the rear ends of the two small main beams.
Optionally, each second vertical compression mechanism includes the mount, sets up the cylinder at mount top and with the cylinder is connected and is used for compressing tightly the briquetting of little girder, the mount is L type, L type mount has the mesa that is used for placing little girder, the briquetting is in under the drive of cylinder can for the cylinder is rotatory.
Optionally, the well head frame includes two longerons that are parallel to each other, connects two middle short crossbeams, preceding short crossbeam and the short crossbeam of back of two longerons, well head frame positioning mechanism includes the brace table, sets up the door frame of brace table intermediate position with be located the boss of door frame top surface, when the location well head frame, the space alignment between two middle short crossbeams of well head frame positioning mechanism's boss card goes into to on the base.
Optionally, the assembly bench of special vehicle front frame still includes well word frame front end positioning mechanism, well word frame front end positioning mechanism is close to the front end roof beam and waits to fix a position the station, front end positioning mechanism includes the support and sets up both ends supporting shoe on the support, the end supporting shoe is including being used for supporting the brace table of longeron tip of well word frame and by the brace table upwards extends and is used for fixing a position the supporting wall of longeron well word frame lateral wall, the brace table with the supporting wall forms an L type, and two L type tip supporting shoes back to back set up.
Optionally, the crossbeam positioning mechanism still includes the edge the crossbeam locating rack that base longitudinal direction extends, a plurality of crossbeam locating platforms interval sets up the top surface of crossbeam locating rack, the crossbeam locating platform includes along the positioning seat that transverse direction set up and sets up two setting elements at positioning seat both ends, the setting element is the L type, two setting elements are used for transversely supporting and fixing a position the crossbeam of special vehicle front frame.
Optionally, the front frame of the special vehicle further comprises two gooseneck cross beams arranged between the two small main beams;
The assembly table of the front frame of the special vehicle further comprises a gooseneck beam positioning mechanism used for positioning the two gooseneck beams, the gooseneck beam positioning mechanism comprises a gooseneck support and two gooseneck supporting pieces arranged on the top surface of the gooseneck support, the two gooseneck supporting pieces are distributed at intervals along the longitudinal direction, each gooseneck supporting piece comprises a bottom plate and positioning blocks respectively arranged at two ends of the bottom plate, each positioning block is L-shaped, and the two positioning blocks of the gooseneck supporting pieces are used for supporting and positioning the gooseneck beams.
Optionally, the assembling table of the front frame of the special vehicle further comprises an end positioning vertical plate for positioning the rear end part of the small main beam.
The technical scheme provided by the embodiment of the invention can comprise the following beneficial effects:
According to the assembling table for the front frame of the special vehicle, the front end beam positioning mechanism, the centering clamping mechanism, the well frame positioning mechanism and the cross beam positioning mechanism are arranged, so that the front end beam, the two small main beams, the well frame and the cross beam of the front frame of the special vehicle can be positioned and assembled on the same assembling table, the production efficiency and the positioning accuracy of the front frame of the special vehicle are improved, meanwhile, the assembling table can be directly abutted with the outer conveying roller way of the small conveying main beam through the rotary lifting roller way mechanism, the small main beam is not required to be conveyed by a lifting appliance, the time is saved, the production efficiency is further improved, and the production period is shortened.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural view of an assembly stand of a front frame of a scooter of the present invention.
Fig. 2 is a schematic structural view of an assembling stand for a front frame of a scooter of the present invention being assembled.
FIG. 3 is a schematic structural view of a centering and clamping mechanism.
Fig. 4 is a schematic structural view of a second vertical compression mechanism.
Fig. 5 is a schematic structural view of a positioning mechanism for a derrick of the present invention.
Fig. 6 is a schematic structural view of a positioning mechanism at the front end of a derrick.
Fig. 7 is a schematic structural view of the beam positioning mechanism of the present invention.
FIG. 8 is a schematic structural view of a gooseneck beam positioning mechanism.
Detailed Description
For the purpose of further illustrating the principles and structure of the present invention, preferred embodiments of the invention will now be described in detail with reference to the accompanying drawings.
The invention relates to an assembling table of a front frame of a semi-trailer frame, which is used for illustrating the assembling table of the front frame of the special vehicle. The special vehicle assembly stand of the invention can be applied to the assembly of the front frame of other types of special vehicles in addition to the assembly of the front frame of the semitrailer enumerated by the invention under the condition of replacing part of the components of the assembly stand of the invention.
As shown in fig. 1 and 2, fig. 1 is a schematic structural view of an assembly stand of a front frame of a scooter of the present invention, and fig. 2 is a schematic structural view of an assembly stand of a front frame of a scooter of the present invention being assembled. The front frame 200 of the special vehicle in the invention comprises a front end beam 201, two small main beams 202 connected with the front end beam 201 and extending along the longitudinal direction, a cross frame 203 positioned between the two small main beams 202 and positioned at the front half section of the front frame 200, a plurality of cross beams 204 positioned at the rear end of the cross beams 203, and two gooseneck cross beams 205 positioned at the rear end of the cross beams 204. The derrick 203 includes two stringers 2031 connecting the front end beams 201 and extending in the longitudinal direction, a front short cross member 2032 located between the stringers 2031, a rear short cross member 2034, and two intermediate short cross members 2033 located between the front short cross member 2032 and the rear short cross member 2034. The two stringers 2031 pass through the front short cross member 2032, the rear short cross member 2034, and the two middle short cross members 2033 to form a cross frame. The components of the front frame 200 are positioned with the bottom surface facing up on an assembly table of the front frame of the utility vehicle.
Here, the direction indicated by the Y axis in fig. 2 is defined as a longitudinal direction (front-rear direction), the direction indicated by the X axis is defined as a lateral direction (left-right direction), and the direction indicated by the Z axis is defined as a height direction (up-down direction).
The assembly stand 100 of the front frame of the special vehicle comprises a base 101, a front end beam positioning mechanism 10 for positioning a front end beam 201, a centering clamping mechanism 23 for positioning and clamping two small main beams 202, a cross frame positioning mechanism 31, a cross beam positioning mechanism 41 and a rotary lifting roller way mechanism 24 for lifting and lowering the height of the small main beams 202.
It should be noted that, the station to be positioned of the small main beam refers to an area on the base 101 for positioning the small main beam; the front end beam to be positioned station referred to in the present invention refers to an area on the base 101 for positioning the front end beam.
The front end beam positioning mechanism 10 includes two jack cylinders 11 provided at the front end of the base 101 and two-angle lock positioning devices 12 respectively engaged with the two-angle locks of the front end beam 201. Each corner lock positioning device 12 comprises a cylinder and a protrusion cooperating with the corner lock. Under the drive of the air cylinder, the bulge is matched with a hole in the angle lock to realize positioning. The two jack cylinders 11 are arranged at intervals in the longitudinal direction of the front end beam 201. Wherein the front end beam 201 is positioned on the front end beam station to be positioned by the front end beam positioning mechanism 10 in a manner that the bottom surface faces upwards.
Two small main beams 202 are input to the assembly table 100 from the rear end of the base 101 through the fixed conveying roller way 25 and the rotary lifting roller way mechanism 24. The rotary lifting roller mechanism 24 includes two roller ways, each for transporting one small main beam 202. Each roller way comprises a plurality of rotary lifting assemblies 241 which are arranged at intervals along the longitudinal direction of the base 101. The rotary lifting assembly 241 comprises an air cylinder, a connecting shaft 2411 and a roller 2412, wherein the roller 2412 is connected with the connecting shaft 2411 through a connecting plate, and the air cylinder drives the connecting shaft 2411 to rotate so as to drive the roller 2412 connected with the connecting plate to lift or descend.
The lifting roller mechanism 24 is used to transport, lift or lower the two small main beams 202. Specifically, when the small main beam 202 is input from the fixed conveying roller way 25 in a manner that the bottom surface is upward, the rotary lifting roller way mechanism 24 extends out, so that the upper surface of the roller wheel 2412 is flush with the upper surface of the fixed conveying roller way 25, and therefore, the small main beam 202 can be conveniently transferred from the fixed conveying roller way 25 to the rotary lifting roller way mechanism 24. When the small main beams 202 are conveyed in place by the rotary lifting roller mechanism 24, the rotary lifting roller mechanism 24 descends, and the small main beams 202 fall on the centering and clamping mechanism 23.
Three sets of centering and clamping mechanisms 23 are arranged along the longitudinal direction of the base 101, and respectively clamp the front end, the middle part and the rear end of the small main beam 202. Each set includes two centering clamping mechanisms 23 for clamping the two small main beams 202, respectively. Referring to fig. 3, fig. 3 is a schematic structural view of the centering and clamping mechanism. The centering and clamping mechanism 23 comprises a motor 231, a support 232 arranged above the motor 231 and used for supporting the small main beams, and two clamping blocks 233 arranged on the support 232, wherein the two clamping blocks 233 are oppositely arranged and can move in the transverse direction or move in the opposite direction under the drive of the motor 231, so that the width of the two small main beams 202 and the width of the front frame are determined. For example, when the small main beam 202 just falls on the support 232 in the pair of clamping mechanisms 23, the two clamping blocks 233 move toward each other to clamp the small main beam 202, positioning the small main beam 202 at a predetermined position. Similarly, the other side of the small main beam 202 is also positioned at a predetermined position by the centering and clamping mechanism 23. Thereby, the width of the two small main beams 202 is limited within a predetermined distance range by the above-mentioned centering and clamping mechanism 23.
The assembling stand 100 of the front frame of the scooter further includes a first vertical pressing mechanism 21 and a second vertical pressing mechanism 22 that press the two small main beams 202 in the height direction. The number of the first vertical compression mechanisms 21 is two, and the two first vertical compression mechanisms 21 are respectively arranged on one side of the stations to be positioned of the two small main beams and close to the stations to be positioned of the front end beam. The front end beam to be positioned is provided with end jacking elastic components at two ends respectively, and in an initial state, the front end beam placed on the front end beam to be positioned and the springs of the end jacking elastic components keep dynamic balance, and when the front end beam 201 is pressed down by the first vertical pressing mechanism 21, the springs below the front end beam 201 are compressed, and the front end beam 201 can move downwards. When the first vertical hold-down mechanism 21 is depressed, the front end beam 201 is contacted first, and then the front end beam 201 and the small main beam 202 are contacted and held down simultaneously. Specifically, the two first vertical hold-down mechanisms 21 hold down the front end beam 201 and the small main beam 202 at the junction of the front end beam 201 and the small main beam 202. Since the two small main beams 202 are input into the assembly table 100 with the bottom surfaces facing upward, and the front end beam 201 is also positioned at a predetermined position with the bottom surfaces facing upward, the front end beam 201 and the small main beams 202 can be made flush with the bottom surfaces by the two first vertical hold-down mechanisms.
The second vertical compression mechanisms 22 are two sets, and each set includes two second vertical compression mechanisms 22 for compressing the two small main beams 202, wherein one set is used for compressing the middle parts of the two small main beams 202, and the other set is used for compressing the rear ends of the two small main beams 202.
Referring to fig. 4, fig. 4 is a schematic structural view of a second vertical compression mechanism. The second vertical compression mechanism 22 includes a fixing frame 221, an air cylinder 222 disposed at the top of the fixing frame 221, and a pressing block 223 connected to the air cylinder 222, the pressing block 223 being rotatable with respect to the air cylinder 222. The mount 221 is L-shaped, with the mount 221 having a table 2211 for receiving the small main beam 202. The pressing block 223 is rotatable relative to the cylinder 222 by the cylinder 222 to press the small main beam 202 from above.
As shown in fig. 1, the assembly station 100 of the front frame of the scooter further includes an end locating riser 26 for locating the rear end of the small main beam 202. The end positioning risers 26 are provided on the centering gripping mechanism 23 at the rear end of the base 101. The height of the end positioning risers 26 is less than the height of the fixed rollgang 25 so that the small girders 202 can enter from the rear end.
Fig. 5 is a schematic structural view of a positioning mechanism for a derrick according to the present invention, as shown in fig. 5. The cross frame positioning mechanism 31 comprises a bracket table 311, a door frame 312 arranged in the middle of the bracket table 311, and a boss 313 positioned on the top surface of the door frame. The boss 313 is fixed to the door frame 312 by bolts. The boss 313 corresponds to the location of the kingpin of the front frame 200 of the scooter. When the wellhead 203 is positioned, the gap between the two middle short beams 2033 of the wellhead 203 is aligned with the boss 313 of the wellhead positioning mechanism 31 to be clamped onto the base 101, that is, the boss 313 is matched with the middle gap of the wellhead 203, so that the two middle short beams 2033 of the wellhead 203 are positioned on the front side and the rear side of the door frame 312, and the boss 313 is clamped in the middle of the two middle short beams 2033. After the two middle short beams 2033 are positioned, other components of the derrick 203 are also positioned.
Referring to fig. 1 and 6, fig. 6 is a schematic structural view of a positioning mechanism for the front end of a derrick. The assembly station 100 of the front frame of the truck also comprises a front end positioning mechanism 32 of the derrick, the front end positioning mechanism 32 of the derrick being close to the station to be positioned of the front end beam 201. The front end positioning mechanism 32 includes a bracket 321 and both end support blocks 322 provided on the bracket 321. The end support block 322 includes a support stand 3221 for supporting a derrick end (i.e., the end of the derrick rail 2031) and a support wall 3222 extending upwardly from the support stand 3221 for positioning the side walls of the rail 2031. The support table 3221 and the support wall 3222 form an L-shape with two L-shaped end support blocks disposed back-to-back.
Fig. 7 is a schematic structural view of the beam positioning mechanism according to the present invention. As shown in connection with fig. 1, the cross beam positioning mechanism 41 extends in the longitudinal direction of the base 101 and is located at the rear end of the derrick positioning mechanism 31. The beam positioning mechanism 41 includes a beam positioning frame 411 extending in the longitudinal direction of the base 101 and a plurality of beam positioning tables 412 provided on the beam positioning frame 411. A plurality of beam positioning tables 412 are disposed at intervals on the top surface of the beam positioning frame 411. Each of the beam positioning stages 412 includes a positioning seat 4122 provided in the lateral direction and positioning members 4121 provided at both ends of the positioning seat 4122, respectively. The positioning member 4121 includes a support table 4121a and a support side wall 4121b. The support table 4121a and the support side wall 4121b form an L-shape. The two positioning members 4121 of the same cross member positioning table 412 are parallel to each other and laterally support and position the cross member 204 of the front frame 200 of the scooter. Each beam 204 is positioned in its own position in the front frame 200 of the utility vehicle by means of the beam positioning table 412. In assembly, the beam 204 is positioned by simply placing the beam 204 on the beam positioning table 412.
As shown in fig. 8, a structural schematic diagram of the gooseneck beam positioning mechanism is shown. The assembly station 100 of the front frame of the scooter further comprises a gooseneck beam positioning mechanism 51 for positioning the two gooseneck beams 205. The gooseneck beam positioning mechanism 51 includes a gooseneck support 511 and two gooseneck supports 512 disposed on the top surface of the gooseneck support 511, and the two gooseneck supports 512 are disposed at intervals along the longitudinal direction. Each gooseneck support 512 includes a bottom plate 5121 and positioning blocks 5122 disposed at both ends of the bottom plate 5121, and the positioning blocks 5122 are L-shaped. The two positioning blocks 5122 of the same gooseneck support 512 are parallel to each other, and the two positioning blocks 5122 are used for laterally positioning the gooseneck cross member 205 of the front frame 200 of the scooter. Each gooseneck boom 205 determines its position in the front frame 200 of the utility vehicle by means of a gooseneck support 512. In assembly, the positioning of the gooseneck boom 205 may be accomplished by simply placing the gooseneck boom 205 on the gooseneck support 512.
The positioning, aligning, clamping and compacting structures of the components of the front frame 200 of the scooter are described below, and the working principle of the assembly stand 100 of the front frame of the scooter of the present invention is as follows:
Before the two small main beams 202 are conveyed to the assembly table 100 of the front frame of the special vehicle through the external conveying roller way, the rotary lifting roller way 24 is lifted, the two small main beams 202 enter from the rear end of the base 101 through the fixed conveying roller way 25 and the rotary lifting roller way 24, and the two small main beams 202 are manually pushed in place; the rotary lifting roller way 24 descends, and the two small main beams descend and fall on the support 232 of the centering clamping mechanism 23;
Pushing out the front end beam 201, conveying the front end beam 201 to a station to be positioned, and transversely positioning the front end beam 201 by the angle locking positioning device 12;
The front ends of the middle parts of the two small main beams 202 are provided with a groined frame 203, so that a boss of a groined frame positioning mechanism 31 is positioned between two middle short cross beams 2033 of the groined frame 203, and one ends of two longitudinal beams 2031 of the groined frame 203 are clamped on supporting blocks 322 at two ends of a groined frame front end positioning mechanism 32;
Placing each of the cross beams 204 on the corresponding cross beam positioning table 412 of the cross beam positioning mechanism 41, and placing the gooseneck cross beam 205 on the gooseneck support 512 of the gooseneck cross beam positioning mechanism 51;
Starting a jacking cylinder 11 to jack the front end beam 201, starting a centering clamping mechanism 23 to clamp the small main beam 202 and determining the width between the two small main beams, starting a first vertical pressing mechanism 21 and a second vertical pressing mechanism 22 to enable the first vertical pressing mechanism 21 to press the front end beam 201 and the small main beam 202, and enabling the second vertical pressing mechanism 22 to press the small main beam 202;
After all parts of the front frame of the special vehicle are positioned, starting spot welding;
After the assembly is completed, the jacking cylinder 11 is loosened, the first vertical pressing mechanism 21 and the second vertical pressing mechanism 22 are loosened, and the traction plates are assembled;
after the traction plate assembly is completed, the centering clamping mechanism 23 is loosened, the assembly is completed, and the assembled front frame is lifted to the next station.
Thus, the assembly of the front frame of the special vehicle is completed.
Furthermore, the assembling table of the front frame of the special vehicle can be suitable for assembling the front frames of other semi-trailer models by replacing or adjusting the structures of the cross beam positioning mechanism, the cross-frame positioning mechanism and the gooseneck cross beam positioning mechanism and adjusting the positions of the centering clamping components.
According to the assembling table for the front frame of the special vehicle, the front end beam positioning mechanism, the centering clamping mechanism, the well frame positioning mechanism and the cross beam positioning mechanism are arranged, so that the front end beam, the two small main beams, the well frame and the cross beam of the front frame of the special vehicle can be positioned and assembled on the same assembling table, the production efficiency and the positioning accuracy of the front frame of the special vehicle are improved, meanwhile, the assembling table can be directly abutted with the outer conveying roller way of the small conveying main beam through the rotary lifting roller way mechanism, the small main beam is not required to be conveyed by a lifting appliance, the time is saved, the production efficiency is further improved, and the production period is shortened.
The foregoing is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structural changes made by applying the descriptions and the drawings of the present invention are included in the scope of the present invention.
Claims (1)
1. The utility model provides an assembled platform of special car front frame, its characterized in that, special car front frame includes front end beam, two little girders, is located the well frame and the crossbeam between two little girders, the assembled platform of special car front frame includes:
a base;
the front end beam positioning mechanism is arranged at the front end of the base and used for positioning the front end beam;
The centering clamping mechanism is used for clamping the two small main beams and determining the width between the two small main beams;
The well head frame positioning mechanism is arranged on the base and matched with the middle gap of the well head frame so as to determine the position of the well head frame in the front frame of the special vehicle;
The beam positioning mechanism is arranged along the longitudinal direction of the base and comprises a plurality of beam positioning tables which are arranged at intervals along the longitudinal direction of the base, and the position of the beam in the front frame of the special vehicle is determined through the beam positioning tables;
The rotary lifting roller way mechanism comprises two roller ways, each roller way is used for conveying a small girder, each roller way comprises a plurality of rotary lifting assemblies which are distributed at intervals along the longitudinal direction of the base, and the rotary lifting roller way mechanism is in butt joint with a fixed conveying roller way arranged at the rear end of the base, so that the small girders can enter from the rear end through the rotary lifting roller way mechanism;
The front end beam positioning mechanism comprises two jacking air cylinders arranged at the front end of the base and two angle locking position devices respectively matched with two angle locks of the front end beam, each angle locking position device comprises an air cylinder and a bulge matched with the corresponding angle lock, and the bulge is matched with a hole in the angle lock under the driving of the air cylinder;
The centering clamping mechanisms are three sets and are distributed at intervals along the longitudinal direction of the base, the three sets of centering clamping mechanisms correspondingly clamp the front ends, the middle parts and the rear ends of the two small main beams, each centering clamping mechanism comprises a motor, a support arranged above the motor and two clamping blocks arranged on the support, and the two clamping blocks are oppositely arranged and can move along the transverse direction under the drive of the motor;
The assembling table of the front frame of the special vehicle further comprises a first vertical compression mechanism and a second vertical compression mechanism which compress the two small main beams in the height direction;
The two first vertical pressing mechanisms are respectively arranged at one side of the two small main beams to be positioned and close to the front end beam to be positioned, the first vertical pressing mechanisms firstly contact the front end beam and press the front end beam in the pressing down process, then simultaneously contact and press the front end beam and the small main beams, the bottom surfaces of the front end beams face upwards and are positioned at the front end beam to be positioned through the front end beam positioning mechanisms, and the bottom surfaces of the two small main beams face upwards and are positioned at the corresponding small main beam to be positioned through the centering clamping mechanisms;
the second vertical compression mechanisms are two sets, each set comprises two second vertical compression mechanisms respectively used for compressing the small main beams, one set of the second vertical compression mechanisms is used for compressing the middle parts of the small main beams, and the other set of the second vertical compression mechanisms is used for compressing the rear ends of the two small main beams;
each second vertical pressing mechanism comprises a fixing frame, an air cylinder arranged at the top of the fixing frame and a pressing block connected with the air cylinder and used for pressing the small main beam, wherein the fixing frame is L-shaped, the L-shaped fixing frame is provided with a table top used for placing the small main beam, and the pressing block can rotate relative to the air cylinder under the driving of the air cylinder;
The well frame comprises two parallel longitudinal beams, two middle short beams connecting the two longitudinal beams, a front short beam and a rear short beam, the well frame positioning mechanism comprises a support table, a door frame arranged in the middle of the support table and a boss positioned on the top surface of the door frame, and when the well frame is positioned, a gap between the two middle short beams of the well frame is aligned with the boss of the well frame positioning mechanism to be clamped into the base;
The assembly table of the front frame of the special vehicle further comprises a front end positioning mechanism of the cross frame, the front end positioning mechanism of the cross frame is close to a front end beam to-be-positioned station, the front end positioning mechanism comprises a bracket and two end supporting blocks arranged on the bracket, each end supporting block comprises a supporting table for supporting the end part of a longitudinal beam of the cross frame and a supporting wall upwards extending from the supporting table for positioning the side wall of the cross frame of the longitudinal beam, the supporting table and the supporting wall form an L shape, and the two L-shaped end supporting blocks are arranged back to back;
The beam positioning mechanism further comprises a beam positioning frame extending along the longitudinal direction of the base, the plurality of beam positioning tables are arranged on the top surface of the beam positioning frame at intervals, each beam positioning table comprises a positioning seat arranged along the transverse direction and two positioning pieces arranged at two ends of the positioning seat, each positioning piece is L-shaped, and the two positioning pieces are used for transversely supporting and positioning the beams of the front frame of the special vehicle;
The front frame of the special vehicle further comprises two gooseneck cross beams arranged between the two small main beams;
The assembly table of the front frame of the special vehicle further comprises a gooseneck beam positioning mechanism for positioning the two gooseneck beams, the gooseneck beam positioning mechanism comprises a gooseneck support and two gooseneck supporting pieces arranged on the top surface of the gooseneck support, the two gooseneck supporting pieces are distributed at intervals along the longitudinal direction, each gooseneck supporting piece comprises a bottom plate and positioning blocks respectively arranged at two ends of the bottom plate, the positioning blocks are L-shaped, and the two positioning blocks of the gooseneck supporting pieces are used for supporting and positioning the gooseneck beams;
the assembling table of the front frame of the special vehicle further comprises an end positioning vertical plate for positioning the rear end part of the small main beam.
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| CN201710714365.4A CN109396824B (en) | 2017-08-18 | 2017-08-18 | Assembling table for front frame of special vehicle |
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| CN201710714365.4A CN109396824B (en) | 2017-08-18 | 2017-08-18 | Assembling table for front frame of special vehicle |
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| CN109396824B true CN109396824B (en) | 2024-04-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113560792A (en) * | 2021-07-23 | 2021-10-29 | 重庆福泰涂装技术有限公司 | Front welding positioning device for vehicle frame |
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| CN109396824A (en) | 2019-03-01 |
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