CN209127487U - Conveyor for grinding of large castings - Google Patents

Abstract

The utility model discloses a kind of heavy castings bruting process conveying devices, including positioner, trolley platform, driving device, track, displacement base and shield, positioner is fixed at trolley platform central upper portion by conjugating base, trolley platform bottom and two parallel orbits, which roll, to be connected, the driving device being fixed on trolley platform is at least engaged with a track, as driving device is along track engagement rotation, the walking of trolley platform direction along ng a path is driven.By the software programming to servo motor, the speed of the traveling of conveying device is regulated and controled, and then when workpiece of polishing enters scanning system, can perfectly scan the polishing region of polishing workpiece, guarantee the efficient operation of milling robot.

Description

Conveyor for grinding of large castings

technical field

The utility model relates to the technical field of casting machinery, in particular to a conveying device used for cooperating with a grinding robot to transport large castings with high precision and reciprocatingly.

Background technique

As we all know, my country is a big country in the foundry industry. In the manufacturing process of large castings (500 kg-3 tons), after the large castings are doffed, the pouring risers are generally cut by mechanical cutting, oxyacetylene flame cutting, arc cutting or plasma cutting. removed, and then workers hand-held a grinder to smooth the surface of the casting. A large amount of metal particles, abrasive dust, noise, etc. are generated during the grinding process of the grinding machine, which seriously endangers the health of the staff. With the increase of labor costs and the increasingly demanding working environment of young people, traditional manual grinding has been difficult to develop continuously. Therefore, improving transportation and grinding operations and increasing the degree of automation have become urgent problems to be solved. In the grinding process of small castings, the grinding robot has gradually become an alternative to manual grinding. First, a fixture is used to hold the casting, and then the grinding robot is controlled to move to the grinding area according to the planned path to complete the grinding of the workpiece. Small, the arm length range of the grinding manipulator completely covers the grinding range, and the grinding can be completed by adjusting the manipulator. However, for large castings, due to the influence of the arm length, the movement range of the grinding manipulator is difficult to achieve the grinding of the entire workpiece, and due to cost constraints, it is impossible to set up multiple grinding robots indefinitely. Therefore, during the grinding process, it is necessary to constantly adjust The position of the workpiece (reciprocating transport of the workpiece) to match the grinding work of the grinding robot. In the grinding process of small castings, traditional stick conveyors (patent CN204108292U) or conveyor belts (patent CN106425790A) are generally used as workpiece conveying trolleys. However, due to the large size and weight of large workpieces, and the grinding process is a high-precision process, it requires On the basis of ensuring the smooth delivery of workpieces, the conveying trolley must stably control the speed of the conveying trolley, accurately control the dwell time of the conveying trolley in the scanning area, and precisely control the parking position of the conveying trolley, while the traditional stick conveyor or conveyor belt , it is difficult to meet the above requirements.

Utility model content

The purpose of the utility model is to overcome the shortcomings of the prior art and provide a special casting conveying device matched with a grinding robot, so as to solve the problem that the conveying device cannot meet the high precision coordination of the robot when grinding large workpieces.

In order to achieve the above purpose, the conveying device for the grinding process of large-scale castings involved in the present invention includes a positioner, a trolley platform, a driving device, a track, a positioner base and a shield, and the positioner is fixed on the trolley through the positioner base. At the center of the upper part of the platform, the bottom of the trolley platform is rollingly connected with two parallel tracks, and the driving device fixed on the trolley platform is engaged with at least one of the tracks.

The track involved in the utility model comprises H-shaped steel, light rail, ruler bar and guide rail pad, the guide rail pad is arranged between the H-shaped steel and the ground, the light rail is fixed on the upper part of the H-shaped steel and the upper part is connected with the trolley platform in a rolling manner, and the light rail is on the trolley platform. The surface and both sides are finished with finishing, along the length direction, a ruler is arranged on one side of the light rail to engage with the driving device, and the shield is arranged outside the driving device, so as not to affect the normal operation of the transmitter 1, to prevent the waste from falling into the inside the drive unit.

The trolley platform involved in the utility model comprises a platform, a guide device and a scraper. The platform is built with a steel structure frame inside, a flat plate is fixed outside, and a cavity for accommodating a driving device is provided on at least one side of the front and rear sides of the platform. The bottom of the platform rolls with the upper surface of the light rail. The scraper is fixedly installed on the left and right sides of the platform in contact with the track. During the movement of the trolley platform, the scraper removes the grinding waste on the upper surface of the light rail, and the positioner is fixed in the middle of the upper surface of the platform to guide The device is two bolt rollers arranged on the outside of each light rail 42, the bolts in the bolt rollers are fixed at the bottom of the platform, and the rollers in the bolt rollers roll along the outside of the light rail.

The driving device involved in the utility model comprises a servo motor driver, a servo motor, a machine base, a gear, a screw rod, a fixed plate, an eccentric wheel and a clamping plate. The servo motor driver is connected with the servo motor to drive the servo motor to work, and the gear is axially installed on the The output shaft of the servo motor passing through the base plate of the base plate is then engaged with the ruler fixed on the side of the track. One side is connected with the clamping plate, and the fixing plate connected with one end of the clamping plate by bolts is fixed on the platform trolley through the fixing device on the other side of the cavity, and the eccentric wheel is bolted on the clamping plate, and the eccentric wheel is opposite to the guide device The light rail abuts on one side.

The large casting grinding tool of the utility model comprises a grinding robot, a scanning system, the conveying device and a control system, and the control system is respectively connected with the grinding robot, the scanning system and the conveying device.

Compared with the existing conveying trolley, the grinding robot supporting conveying device involved in the utility model controls the speed of the conveying device by programming the software of the servo motor, so that when the grinding workpiece enters the scanning system, it can perfectly scan out the moving speed of the conveying device. Grinding the grinding area of the workpiece to ensure the efficient work of the grinding robot.

Description of drawings

FIG. 1 is a schematic three-dimensional structure diagram of a conveying device used in the grinding process of large castings according to the present invention.

FIG. 2 is an enlarged view of the structure of part A in FIG. 1 .

FIG. 3 is a front view of FIG. 1 .

FIG. 4 is an enlarged view of the structure of part B in FIG. 3 .

FIG. 5 is a top view of the trolley platform according to the present invention.

FIG. 6 is a cross-sectional view of the trolley platform according to the present invention.

FIG. 7 is a schematic three-dimensional structure diagram of the driving device according to the present invention.

8 is a front view of the drive device according to the present invention.

Detailed ways

The technical solutions of the present utility model are further described below in conjunction with specific embodiments.

Example 1

As shown in Figures 1 and 2, the conveying device for the grinding process of large castings involved in this embodiment includes a positioner 1, a trolley platform 2, a driving device 3, a rail 4, a positioner base 5 and a shield (not shown in the figure). Draw), the positioner 1 is fixed at the upper center of the trolley platform 2 through the positioner base 5, the bottom of the trolley platform 2 is rollingly connected with two parallel rails 4, and the drive device 3 fixed on the trolley platform 2 is connected to at least one track 4 Meshing, as the driving device 3 meshes and rotates along the track, it drives the trolley platform 2 to walk along the direction of the track 4, wherein the track 4 includes the H-beam 41, the light rail 42, the ruler 43 and the guide rail pad 44. The rail pad 44 is arranged on the Between the H-shaped steel 41 and the ground, the influence of the uneven ground on the track is reduced, and the horizontality of the H-shaped steel 41 in the length direction is ensured. The upper surface and both sides of the light rail 42 are precisely processed to ensure the stability of the trolley platform 2 during the walking process, and no up and down shaking occurs. Along the length direction, a ruler 43 that engages with the driving device 3 is provided on one side of the light rail 42, and the protective cover It is arranged outside the driving device 3, and under the premise of not affecting the normal operation of the transmitter 1, the waste material can be prevented from falling into the driving device 3, which will affect its normal operation.

As shown in FIGS. 3-6 , the trolley platform 2 involved in this embodiment includes a platform 21 , a guide device 22 and a scraper 23 . The platform 21 is built with a steel structure frame inside, and a flat plate is fixed outside, and at least one side of the front and rear is provided to accommodate In the cavity of the drive device 3, the bottom of the platform 21 is connected to the upper surface of the light rail 42 in a rolling connection, and the scraper 23 is fixedly installed on the left and right sides of the platform 21 in contact with the track 4. During the movement of the trolley platform 2, the scraper 23 The grinding waste on the upper surface of the light rail 42 is removed, and the positioner 5 is fixed in the middle of the upper surface of the platform 21. The guide device 22 is specifically two bolt rollers arranged on the outside of each light rail 42, and the bolts in the bolt rollers are fixed on the platform 21. At the bottom, the rollers in the bolt rollers roll along the outside of the light rail 42 , and the guide device 22 can ensure that the conveying trolley travels stably along the rail 4 .

As shown in Figures 3, 4, 7 and 8, the driving device 3 involved in this embodiment includes a servo motor driver 31, a servo motor 32, a machine base 33, a gear 34, a screw rod 35, a fixing plate 36, an eccentric wheel 37 and a clamp Tighten the plate 38, the servo motor driver 31 is connected with the servo motor 32 to drive the servo motor 32 to work, the gear 34 is axially installed on the output shaft of the servo motor 32 passing through the bottom plate of the base 33, and then connected with the ruler fixed on the side of the rail 4. The bar 43 is engaged, the connecting plate 39 on one side of the machine base 33 is fixed on the machine base bracket 24 on one side of the cavity through the wire rod 35, the other side of the machine base 33 is connected with the clamping plate 38, and is connected with one end of the clamping plate 38 The bolted fixing plate 36 is fixed on the platform trolley 2 through the fixing device 25 on the other side of the cavity, and the eccentric wheel 37 is bolted on the clamping plate 38, and the eccentric wheel 37 is in contact with the light rail 42 on the opposite side of the guide device 22. , By adjusting the contact point between the eccentric wheel 37 and the light rail 42, the meshing degree of the gear 34 and the ruler bar 43 is adjusted, wherein the fixed plate 36, the clamping plate 38 and the base 33 can be an integral structure or a split structure.

The large-scale casting grinding tool involved in this embodiment includes a grinding robot, a scanning system, the conveying device and a control system. The control system is respectively connected with the grinding robot, the scanning system and the conveying device, and the workpiece is fixed on the positioner 1. The conveying device transports it to the working range of the grinding robot. The scanning system scans the workpiece and transmits the scanned image information to the control system. The control system determines the position to be polished, determines the polishing path, and then controls the corresponding polishing robot to follow the polishing path. During the grinding process, according to the grinding needs, the transmitter continuously adjusts the rotation angle of the workpiece, and the conveying device continuously moves along the track. By accurately controlling the moving speed and parking of the servo motor, the accuracy of the grinding position is ensured.

Claims (4)

1. heavy castings bruting process conveying device, which is characterized in that including positioner, trolley platform, driving device, rail Road, displacement base and shield, positioner are fixed at trolley platform central upper portion by conjugating base, trolley platform bottom and two Parallel orbit rolls connection, and the driving device being fixed on trolley platform is at least engaged with a track, with driving device edge Track engagement rotation drives the walking of trolley platform direction along ng a path.

2. heavy castings bruting process conveying device according to claim 1, which is characterized in that track include H profile steel, Light rail, ruler item and guide rail backing plate, for the setting of guide rail backing plate between H profile steel and ground, light rail is fixed on H profile steel top and thereon Portion and trolley platform, which roll, to be connected, and light rail upper surface and two sides finish, and along its length, is arranged and is driven in light rail side Dynamic device engages ruler item, and the outside of driving device is arranged in shield, and the premise impacted is not being worked normally to pick-up machine 1 Under, avoid waste material from falling into inside driving device.

3. heavy castings bruting process conveying device according to claim 2, which is characterized in that trolley platform includes flat Platform, guiding device and material scraping plate, platform interior are built by steel structure frame, the fixed plate in outside, and its front and back at least side is set The cavity for accommodating driving device is set, mesa base and light rail upper surface, which roll, to be connected, and material scraping plate is fixedly mounted on and rail contact Platform left and right sides on, during trolley platform is mobile, material scraping plate removes the polishing waste material of light rail upper surface, becomes Position base is fixed in the middle part of platform upper surface, and guiding device is two bolt idler wheels that 42 outside of every light rail is arranged in, bolt Bolt in idler wheel is fixed on mesa base, the side roll outside light rail of the idler wheel in bolt idler wheel.

4. heavy castings bruting process conveying device according to claim 3, which is characterized in that driving device includes watching Take motor driver, servo motor, base, gear, silk column, fixed plate, eccentric wheel and clamping plate, motor servo driver with watch Motor connection driving servo motor work is taken, gear is axially mounted on the servo motor output shaft of frame bottom plate, then It is engaged again with the ruler item for being fixed on track side, the connecting plate of base side is fixed on the frame support of cavity side by silk column On, the base other side is connect with clamping plate, and passes through the fixation of the cavity other side with the bolted fixed plate in clamping plate one end Device is fixed on platform trolley, the bolt fixed eccentric on clamping plate, the light rail of eccentric wheel and guiding device opposite side It abuts.