CN113548467A

CN113548467A - Workpiece carrying truss

Info

Publication number: CN113548467A
Application number: CN202110915304.0A
Authority: CN
Inventors: 赵宇; 左佳豪
Original assignee: Wuxi Xinjinyu Intelligent Manufacturing Co ltd
Current assignee: Wuxi Xinjinyu Intelligent Manufacturing Co ltd
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2021-10-26

Abstract

The invention discloses a workpiece carrying truss, which relates to the technical field of carrying equipment and comprises an upright post and a cross beam arranged at the upper end of the upright post, wherein a sliding table is arranged on the cross beam; the transmission assembly comprises a rack arranged on the cross beam and a gear arranged on the sliding table and meshed with the rack, the sliding table is provided with an oiling device used for adding lubricating oil to the gear and/or the rack, and the cross beam is also provided with a dust cover covered on the guide structure; the gear can slide relative to the sliding table to adjust the meshing clearance between the gear and the rack. So set up, solved among the prior art artifical add lubricating oil and lead to the problem that transmission part easily appears lubricated unstability, gathers the dust to and the problem of adjusting the size of the gear backlash between the rack and pinion.

Description

Workpiece carrying truss

Technical Field

The invention relates to the technical field of carrying equipment, in particular to a workpiece carrying truss.

Background

In industrial production, a handling truss is often used to handle workpieces. The handling truss generally comprises a cross member, a moving member arranged on the cross member, and a transmission member connected to the moving member.

Transmission part includes gear rack subassembly, and gear rack subassembly etc. need add lubricating oil in the use, at present, adopts the mode of artifical interpolation more, excessively relies on workman's experience and judgement, and the lubricated unstability scheduling problem of transmission part easily appears, still can gather the dust on the transmission part. In addition, the meshing clearance between the gear and the rack can change along with the use and the abrasion of equipment, and the problems of overlarge or undersize meshing clearance and the like are easy to occur. If the meshing clearance is too large, impact and noise can be generated in the transmission process, and the problems of low transmission efficiency and the like can occur; if the meshing clearance is too small, the abrasion of the tooth surface is accelerated, and the service life of the transmission part is shortened.

Therefore, how to solve the problems that the transmission part in the prior art is easy to cause unstable lubrication and dust accumulation, and the meshing clearance between the gear and the rack is too large or too small, becomes an important technical problem to be solved by the technical personnel in the field.

Disclosure of Invention

The invention aims to provide a workpiece carrying truss, which solves the problems that in the prior art, a transmission part is easy to cause unstable lubrication and dust accumulation, and meshing gaps between gears and racks are too large or too small. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.

In order to achieve the purpose, the invention provides the following technical scheme:

the invention provides a workpiece carrying truss which comprises an upright post and a cross beam arranged at the upper end of the upright post, wherein a sliding table is arranged on the cross beam, the workpiece carrying truss also comprises a transmission assembly connected with the sliding table and a guide structure arranged between the sliding table and the cross beam, and the transmission assembly drives the sliding table to slide along the length direction of the cross beam under the guide action of the guide structure; the transmission assembly comprises a rack arranged on the beam and a gear arranged on the sliding table and meshed with the rack, the sliding table is provided with an oil injection device used for adding lubricating oil to the gear and/or the rack, and the beam is also provided with a dust cover covered on the guide structure; the gear can slide relative to the sliding table to adjust the meshing gap between the gear and the rack.

Preferably, still be equipped with vertical removal module on the slip table, vertical removal module for the slip table moves in vertical direction, the lower extreme of vertical removal module is equipped with the tongs.

Preferably, the oiling device is including setting up on the slip table and with the felt gear of rack toothing and with the oiling machine that the felt gear is connected, and to the felt gear fuel feeding.

Preferably, the transmission assembly further comprises a power assembly connected with the gear, a waist-shaped hole is formed in the sliding table, the power assembly is connected with the sliding table through a fastener arranged in the waist-shaped hole, and the power assembly moves relative to the sliding table along the length direction of the waist-shaped hole to adjust the distance between the gear and the rack.

Preferably, the vertical movement module includes the lead screw of vertical setting and the cover is put sliding block on the lead screw, the sliding block with the slip table is connected.

Preferably, the guide structure comprises a linear guide rail arranged on the cross beam and a linear sliding block arranged on the sliding table, and the linear sliding block moves along the linear guide rail.

Preferably, the gripper comprises a three-jaw cylinder connected with the vertical moving module and a pneumatic position-keeping valve connected with the three-jaw cylinder.

Preferably, a protective pad is arranged at a position, used for contacting with a workpiece, on a clamping jaw of the three-jaw air cylinder.

Preferably, the power assembly further comprises a towline slot, and the cable of the power assembly is arranged in the towline slot.

Preferably, the ends of the cross beam and the ends of the vertical movement module are provided with an impact damper and/or a distance sensor.

According to the technical scheme provided by the invention, the workpiece carrying truss comprises an upright post, a cross beam arranged at the upper end of the upright post, a sliding table arranged on the cross beam, a transmission assembly and a guide structure, wherein the transmission assembly is connected with the sliding table, the guide structure is arranged between the sliding table and the cross beam, and the transmission assembly drives the sliding table to slide along the length direction of the cross beam under the guide effect of the guide structure. The transmission assembly comprises a rack arranged on the cross beam and a gear arranged on the sliding table and meshed with the rack, an oil injection device used for adding lubricating oil to the gear and/or the rack is arranged on the sliding table, and a dust cover covered on the guide structure is further arranged on the cross beam. The gear can slide relative to the sliding table to adjust the meshing clearance between the gear and the rack. So set up, oiling device adds lubricating oil to gear and/or rack automatically, need not manual operation for keep better lubricated effect between gear and the rack all the time, the dust cover can prevent that the dust from gathering on guide structure, and the gear removes for the slip table, makes the gear be close to relatively or keep away from the rack, is convenient for adjust the backlash between gear and the rack to suitable within range.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of a workpiece handling truss in accordance with an embodiment of the present invention;

FIG. 2 is a schematic structural view of a cross member in an embodiment of the present invention;

FIG. 3 is a schematic view of the structure of a gripper in an embodiment of the present invention;

FIG. 4 is a schematic diagram of the structure of a towline trough in an embodiment of the invention;

FIG. 5 is a schematic view of a first angle of the slide and the transmission assembly according to an embodiment of the present invention;

FIG. 6 is a schematic view of a second angle of the slide table and the transmission assembly according to the embodiment of the present invention;

fig. 7 is a schematic structural diagram of a vertical moving module according to an embodiment of the present invention.

In the figure:

1-upright column, 2-cross beam, 3-sliding table, 4-gear, 5-rack, 6-oiling device, 7-organ cover, 8-vertical moving module, 9-gripper, 10-three-jaw cylinder, 11-pneumatic position-keeping valve, 12-felt gear, 13-motor, 14-reducer, 15-reducer base, 16-kidney-shaped hole, 17-sliding block, 18-linear guide rail, 19-linear sliding block, 20-drag chain groove, 21-bumper, 22-distance sensor, 23-oil separator, 24-shell, 25-sink groove and 26-rack cover plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

The objective of the present embodiment is to provide a workpiece carrying truss, which solves the problems in the prior art that the transmission part is easy to cause unstable lubrication and dust accumulation, and the meshing gap between the gear and the rack is too large or too small.

Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the contents of the invention described in the claims. The entire contents of the configurations shown in the following embodiments are not limited to those required as solutions of the inventions described in the claims.

Referring to fig. 1 to 7, in the present embodiment, the workpiece carrying truss includes an upright column 1, a cross beam 2 disposed at an upper end of the upright column 1, a sliding table 3 disposed on the cross beam 2, a transmission assembly and a guide structure, the transmission assembly is connected to the sliding table 3, the guide structure is disposed between the sliding table 3 and the cross beam 2, and the transmission assembly drives the sliding table 3 to slide along a length direction of the cross beam 2 under a guiding action of the guide structure. The transmission assembly comprises a rack 5 arranged on the beam 2 and a gear 4 arranged on the sliding table 3 and meshed with the rack 5, an oil injection device 6 used for adding lubricating oil to the gear 4 and/or the rack 5 is arranged on the sliding table 3, and a dust cover covered on the guide structure is further arranged on the beam 2. The gear 4 is slidable relative to the slide table 3 to adjust a meshing gap between the gear 4 and the rack 5.

So set up, oiling device 6 adds lubricating oil to gear 4 and/or rack 5 automatically, need not manual operation, make and keep better lubricated effect between gear 4 and the rack 5 always, the dust cover can prevent that the dust from gathering on guide structure, gear 4 removes for slip table 3, make gear 4 be close to relatively or keep away from rack 5, be convenient for adjust the meshing clearance between gear 4 and the rack 5 to suitable within range, it is unstable easily to appear lubricating among the prior art transmission part, gather the problem of dust, and the problem of phenomenon such as too big or undersize appears in the meshing clearance between gear 4 rack 5.

In a specific embodiment, the upright post 1 is provided with an upright post connecting plate, and the cross beam 2 is connected with the adjusting block and the upright post connecting plate through a jackscrew. The jackscrew is unscrewed, the relative position between the cross beam 2 and the upright post connecting plate is adjusted, then the jackscrew is screwed, and the relative position between the cross beam 2 and the upright post 1 can be adjusted through the jackscrew and the adjusting block. The cross beam 2 is also provided with a rack cover plate 26 for protecting the rack 5.

In a preferred embodiment of this embodiment, please refer to fig. 7, a vertical moving module 8 is further disposed on the sliding table 3, the vertical moving module 8 moves in a vertical direction relative to the sliding table 3, and a gripper 9 is disposed at a lower end of the vertical moving module 8. In a specific embodiment, the vertical moving module 8 includes a housing 24, a screw rod vertically disposed in the housing 24, and a sliding block 17 sleeved on the screw rod, wherein a slit parallel to the screw rod is disposed on the housing 24, and an edge of the sliding block 17 extends out of the slit to be connected with the sliding table 3. The housing 24 is made of aluminum alloy to reduce its own weight. One end of lead screw is connected with motor 13, and motor 13's dustcoat and casing 24 fixed connection, tongs 9 set up the lower extreme at casing 24, and motor 13 drives the lead screw and rotates, makes the lead screw reciprocate for slip table 3, and then drives tongs 9 and reciprocate.

Further, referring to fig. 3, the gripper 9 includes a three-jaw cylinder 10 connected to the vertical moving module 8 and a pneumatic position-keeping valve 11 connected to the three-jaw cylinder 10. And a protective pad is arranged at the position, used for contacting with a workpiece, of the clamping jaw of the three-jaw air cylinder 10. Specifically, the protection pad sets up the inboard at the clamping jaw, and the material of protection pad is made by nylon/polyurethane material, and the protection pad can prevent that the clamping jaw from causing the damage to the surface of work piece. The jaws are made of steel to ensure their strength. The pneumatic position-keeping valve 11 can keep the pressure in the three-jaw cylinder 10 within a certain range, and when the pressure of an air source is interrupted or the air source supply system fails, the pneumatic position-keeping valve 11 can automatically cut off a channel between the regulator and the regulating valve air chamber or between the output of the positioner and the regulating valve air chamber, so that the valve position of the regulating valve is kept at the original control position, and the process parameters in the regulating circuit are ensured to be unchanged. Thus, the pneumatic action in the cylinder is not interrupted, and the pneumatic position-maintaining valve 11 is immediately restored to the normal position after the failure is eliminated. The pneumatic retention valve 11 further ensures that the workpiece is not damaged.

Further, the guide structure comprises a linear guide rail 18 arranged on the cross beam 2 and a linear slide block 19 arranged on the sliding table 3, and the linear slide block 19 moves along the linear guide rail 18. Specifically, rack 5 sets up the up end at crossbeam 2, and linear guide 18 sets up in one side of crossbeam 2, and slip table 3 comprises the horizontal support board that the level setting is used for supporting drive assembly and the vertical support board that is connected with the horizontal support board, and sharp slider 19 sets up the inboard at vertical support board, also is that vertical support board is close to one side of linear guide 18. The dust cover can be but is not limited to a bellows cover 7, and the bellows cover 7 is connected with the vertical supporting plate and covers the linear guide rail 18.

In the present embodiment, referring to fig. 5 and 6, the oil injection device 6 includes a felt gear 12 disposed on the sliding table 3 and engaged with the rack 5, an oil separator 23 connected to both the felt gear 12 and the linear slider 19, and an oil injector connected to the oil separator 23. In a specific embodiment, the oiling machine is a full-automatic oiling machine, the oiling machine is arranged on the upper surface of the horizontal support plate of the sliding table 3, an oiling pipe of the oiling machine is connected with the oil distributor 23, the oil distributor 23 supplies lubricating oil to the felt gear 12 and the linear sliding block 19, the felt gear 12 is meshed with the rack 5, the lubricating oil can be coated on the rack 5, and a good lubricating effect is achieved between the gear 4 and the rack 5. Meanwhile, the linear slide block 19 is in contact with the linear guide rail 18, so that a better lubricating effect is achieved between the linear guide rail 18 and the linear slide block 19.

In a preferred scheme of the embodiment, the transmission assembly further comprises a power assembly connected with the gear 4, the power assembly comprises a motor 13 and a speed reducer 14 connected with the motor 13, and the speed reducer 14 is connected with the gear 4. The motor 13 and the speed reducer 14 are both arranged on the upper surface of a horizontal support plate of the sliding table 3, and a through hole for connecting the speed reducer 14 with the gear 4 is formed in the horizontal support plate. A waist-shaped hole 16 is arranged on a horizontal supporting plate of the sliding table 3, and a speed reducer base 15 is connected with the horizontal supporting plate through a fastener arranged in the waist-shaped hole 16. In some embodiments, the horizontal support plate is provided with a sinking groove 25, and the kidney-shaped hole 16 is arranged at the position of the sinking groove 25. The fastener includes jackscrew and stopper, loosens the jackscrew, just can move along the length direction in waist type hole 16 for slip table 3, and gear 4 moves along reduction gear 14 simultaneously, with being close to relatively or keeping away from rack 5, and after gear 4 moved suitable position, the jackscrew was screwed again. This achieves an adjustment of the meshing gap between the gear 4 and the rack 5.

In this embodiment, the workpiece handling truss further includes a towline channel 20, and the cables of the power assembly are disposed within the towline channel 20. So arranged, the drag chain groove 20 plays the role of traction and protection for the cable.

In a preferred solution of the present embodiment, the ends of the cross beam 2 and the ends of the vertical movement module 8 are provided with bumpers 21 and/or distance sensors 22. In a specific embodiment, both ends of the beam 2 are provided with a bumper 21 and a distance sensor 22, and at least one distance sensor 22 is provided at the lower end of the vertical moving module 8. The two ends of the vertical supporting plate of the sliding table 3 are also provided with anti-collision devices 21. The bumper 21 is made of polyurethane, which has a certain elasticity. The distance sensor 22 may be, but not limited to, a photoelectric sensor for monitoring a distance between the sliding table 3 and the distance sensor 22 or detecting a distance between the sliding block 17 and the distance sensor 22, so as to prevent collision due to an excessively large moving distance during movement of the sliding table 3 and the sliding block 17, protect equipment, and prevent damage due to collision.

It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments. The multiple schemes provided by the invention comprise basic schemes, are independent from each other and are not restricted with each other, but can be combined with each other under the condition of no conflict, so that multiple effects are realized together.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. The workpiece carrying truss is characterized by comprising an upright post (1) and a cross beam (2) arranged at the upper end of the upright post (1), wherein a sliding table (3) is arranged on the cross beam (2), the workpiece carrying truss further comprises a transmission assembly connected with the sliding table (3) and a guide structure arranged between the sliding table (3) and the cross beam (2), and the transmission assembly drives the sliding table (3) to slide along the length direction of the cross beam (2) under the guide effect of the guide structure; the transmission assembly comprises a rack (5) arranged on the cross beam (2) and a gear (4) which is arranged on the sliding table (3) and is meshed with the rack (5), an oil injection device (6) used for adding lubricating oil to the gear (4) and/or the rack (5) is arranged on the sliding table (3), and a dust cover covered on the guide structure is further arranged on the cross beam (2); the gear (4) can slide relative to the sliding table (3) to adjust the meshing clearance between the gear (4) and the rack (5).

2. The workpiece handling truss according to claim 1, wherein a vertical moving module (8) is further arranged on the sliding table (3), the vertical moving module (8) moves in a vertical direction relative to the sliding table (3), and a gripper (9) is arranged at the lower end of the vertical moving module (8).

3. The workpiece carrying truss as recited in claim 1, wherein the oil injection device (6) comprises a felt gear (12) which is arranged on the sliding table (3) and engaged with the rack (5), and an oil injector which is connected with the felt gear (12) and supplies oil to the felt gear (12).

4. The workpiece handling truss of claim 1, wherein the transmission assembly further comprises a power assembly connected with the gear (4), the sliding table (3) is provided with a kidney-shaped hole (16), the power assembly is connected with the sliding table (3) through a fastener arranged in the kidney-shaped hole (16), and the power assembly moves relative to the sliding table (3) along the length direction of the kidney-shaped hole (16) so as to adjust the distance between the gear (4) and the rack (5).

5. The workpiece handling truss of claim 2, wherein the vertical moving module (8) comprises a vertically arranged screw rod and a sliding block (17) sleeved on the screw rod, and the sliding block (17) is connected with the sliding table (3).

6. The workpiece handling truss of claim 1, wherein the guide structure comprises a linear guide rail (18) provided on the cross beam (2) and a linear slider (19) provided on the slide table (3), the linear slider (19) moving along the linear guide rail (18).

7. The workpiece handling truss of claim 2, wherein the gripper (9) comprises a three-jaw cylinder (10) connected to the vertical movement module (8) and a pneumatic hold valve (11) connected to the three-jaw cylinder (10).

8. The workpiece handling truss of claim 7 wherein the jaws of the three jaw cylinder (10) are provided with protective pads at locations for contact with the workpiece.

9. The workpiece handling truss of claim 4 further comprising a towline channel (20), the cables of the power assembly being disposed within the towline channel (20).

10. The workpiece handling truss of claim 2, wherein the ends of the cross beams (2) and the ends of the vertical movement modules (8) are provided with bumpers (21) and/or distance sensors (22).