An automated grinding station for truck axle housing

Abstract

An automated grinding station for a truck bridge shell includes an electric control cabinet for controlling related electrical equipment; a robot for completing the grinding work; a conveyor line for loading and unloading workpieces; a tool changer for storing different grinding tools so that the robot can change the tools; two conveyor lines are provided, and one robot and one tool changer are provided respectively, and are located between the two conveyor lines; a tool fixture for fixing the workpiece is provided on the conveyor line, and the tool fixture reciprocates on the conveyor line; one or more reciprocating tool storage boxes are provided on the tool changer; the tool fixture and / or tool storage box reciprocates between the robot and the worker. The present invention has the characteristics of improved production safety factor, reduced labor cost, improved production quality, high degree of automation, reduced labor intensity of workers, and improved production efficiency.

Description

Technical Field

[0001] The invention relates to a grinding station, in particular to an automatic grinding station for a truck bridge housing. Background Art

[0002] The bridge housing is widely used in various trucks and is an indispensable and important part. However, the current bridge housing grinding process is completely completed manually, so there are defects such as low output and high cost; in addition, manual grinding cannot guarantee the processing quality and affects the qualified rate; in addition, grinding produces a lot of dust, loud noise, and is full of harmful gases. Workers working in this environment for a long time will have serious health damage. Chinese patent document number CN207058251U disclosed an automatic grinding system for automobile bridge housing on March 2, 2018, and specifically disclosed: including: positioning tooling for fixing workpieces; double-station conveying platform, which conveys workpieces from the loading position to the grinding position through the positioning tooling; a mold changing table for storing different molds; a multi-axis robot equipped with a high-speed electric spindle, which changes different molds from the mold changing table and grinds and removes the workpiece on the grinding position; a PLC control module, which is electrically connected to the mold changing table, the double-station conveying platform, and a high-speed electric spindle controller for controlling the high-speed electric spindle. The grinding system combines positioning tooling, a grinding tool changing table and a multi-axis robot into a grinding assembly. During actual use, one grinding assembly is in the grinding state and the other is in an idle state for loading, resulting in one of the grinding assemblies not being effectively utilized. In addition, the manufacturing cost of setting up two sets of grinding assemblies is very expensive.

[0003] Therefore, further improvements are necessary. Summary of the invention

[0004] The purpose of the present invention is to provide an automated grinding station for truck bridge shells with improved production safety factor, reduced labor costs, improved production quality, high degree of automation, reduced labor intensity of workers, and improved production efficiency, so as to overcome the shortcomings of the prior art.

[0005] An automatic grinding station for a truck axle housing designed for this purpose includes:

[0006] Electric control cabinet, used to control related electrical equipment;

[0007] Robots, used to complete the grinding work;

[0008] Conveyor line, used for loading and unloading of workpieces;

[0009] Tool changing table, used to store different grinding tools so that the robot can change the tools;

[0010] The characteristics are as follows: two conveyor lines are arranged, one robot and one tool changing station are arranged respectively, and they are respectively located between the two conveyor lines; the conveyor line is provided with a jig for fixing the workpiece, and the jig reciprocates on the conveyor line; the tool changing station is provided with one or more reciprocating tool storage boxes; the jig and / or the tool storage box reciprocates between the robot and the worker.

[0011] The tool changing table includes a frame, on which a carrier plate is movably arranged, and one or more tool storage boxes are arranged on the carrier plate and move with the carrier plate; a push cylinder is arranged between the frame and the carrier plate, one end of the push cylinder is connected to the frame and the other end is connected to the carrier plate, and the push cylinder drives the carrier plate to reciprocate on the frame.

[0012] A flip cover is provided at the opening of the tool storage box, one end of the flip cover is hinged on the tool storage box, a flip cylinder is provided between the flip cover and the tool storage box or the carrier plate, one end of the flip cylinder is hinged to the flip cover, and the other end is hinged to the tool storage box or the carrier plate, and the flip cylinder drives the flip cover to flip to open and close the opening of the tool storage box.

[0013] The conveyor line includes a conveyor support frame, on which a transplanting rack extending along the conveying direction is arranged; the tooling fixture is provided with a transplanting power assembly, which includes a transplanting motor, and the output shaft of the transplanting motor is transmission-connected with a transplanting gear; the transplanting rack and the transplanting gear are meshed with each other to drive the tooling fixture to move along the conveying direction.

[0014] The tooling fixture includes a transfer base plate, and fixed seats are provided at both ends of the transfer base plate; a first clamp assembly for vertically clamping the workpiece and a second clamp assembly for horizontally clamping the workpiece are provided on the fixed seat; the first clamp assembly includes a clamp base, a connecting block, a clamp arm and a clamp cylinder, the clamp base is fixed on the fixed seat, one end of the connecting block is hinged to the clamp base, and the other end is hinged to the middle part of the clamp arm, one end of the clamp arm is hinged to one end of the clamp cylinder, and the other end of the clamp cylinder is fixed to the fixed seat; when the clamp cylinder is working, the other end of the clamp arm swings to vertically loosen or vertically clamp the workpiece; the second clamp assembly includes a clamp screw that is positioned and rotated on the fixed seat, and a horizontal clamp block that reciprocates and slides on the fixed seat, the horizontal clamp block and the clamp screw are screwed to each other, and rotating the clamp screw can drive the horizontal clamp block to slide on the fixed seat to horizontally loosen or horizontally clamp the workpiece.

[0015] At least one of the fixed seats is slidably arranged on the transplanting base plate, and an adjusting screw is arranged between the fixed seat and the transplanting base plate. The adjusting screw is positioned and rotated on the transplanting base plate and is threadedly connected to the fixed seat. Rotating the adjusting screw can drive the fixed seat to slide on the transplanting base plate.

[0016] An end surface positioning assembly is arranged between the fixing seats at both ends of the transplanting base plate, and the end surface positioning assembly is fixed on the transplanting base plate; the end surface positioning assembly comprises a positioning plate for positioning the end surface of the connected workpiece.

[0017] The invention also includes a protective cover, which covers the electric control cabinet, the robot, part of the conveyor line and / or the tool changing table; the protective cover is provided with a first opening corresponding to the conveyor line and a second opening corresponding to the tool changing table, the conveying starting end of the conveyor line is always exposed to the first opening of the protective cover, and the tool storage box enters and exits the second opening of the protective cover, the first opening is provided with a first lifting door matched therewith, and the second opening is provided with a second lifting door matched therewith.

[0018] It also includes a workstation base, on which an electric control cabinet, a robot, part of the conveyor line and / or a tool changing table are fixed, and the cables leading out of the robot, part of the conveyor line and / or the tool changing table are connected to the electric control cabinet through the inner cavity of the workstation base.

[0019] In the automated grinding station of the present invention, a robot and a tool changer cooperate with two sets of tooling fixtures to work together; during operation, one tooling fixture performs grinding processing at the grinding station, and the other tooling fixture is loaded and unloaded by workers at the loading and unloading station; during the entire operation, no equipment is idle, so the production rhythm is compact, thereby improving production efficiency; and the number of robots and tool changers is reduced, so the manufacturing cost is reduced.

[0020] The automated grinding station of the present invention realizes fully automatic grinding operations with a high degree of automation and more precise positioning of workpieces, thereby improving production efficiency and avoiding the uncertainty of manual operation. Workers in the entire work process only need to be responsible for loading and unloading operations of workpieces, so the labor intensity of workers is greatly reduced, the number of employees is reduced, and labor costs are reduced. In addition, during operation, workers stay away from robots and grinding stations, which effectively eliminates potential safety hazards, while reducing the impact of dust on workers and ensuring the health of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of an automated grinding station in one embodiment of the present invention.

[0022] Figure 2 Schematic diagram of the internal structure of an automated grinding station in one embodiment of the present invention.

[0023] Figure 3 Schematic diagram of the structure of a tool changing station in one embodiment of the present invention.

[0024] Figure 4 It is a partial cross-sectional view of a tool changing station in one embodiment of the present invention.

[0025] Figure 5It is a schematic diagram of the assembly of a conveyor line and a tooling fixture in one embodiment of the present invention.

[0026] Figure 6 Schematic diagram of the structure of a conveyor line in one embodiment of the present invention.

[0027] Figure 7 and Figure 8 They are schematic diagrams of the structures of the tooling fixture in different orientations in one embodiment of the present invention.

[0028] Fig. 9 It is a schematic diagram of the partial structure of a tooling fixture in one embodiment of the present invention.

[0029] Fig.10 Schematic diagram of the structure of a robot in one embodiment of the present invention.

[0030] Fig.11 Schematic diagram of the structure of a workpiece in one embodiment of the present invention. DETAILED DESCRIPTION

[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0032] See also Figure 1-Figure 11 The automated grinding station for the truck axle housing includes:

[0033] Electric control cabinet A, used to control related electrical equipment;

[0034] Robot B, used to complete the grinding work;

[0035] Conveyor line E is used for loading and unloading workpieces H;

[0036] Tool changing table F is used to store different grinding tools so that robot B can change the tools;

[0037] Two conveyor lines E are set up, and one robot B and one tool changer F are set up respectively, and they are respectively located between the two conveyor lines E; the conveyor line E is provided with a fixture C for fixing the workpiece H, and the fixture C reciprocates on the conveyor line E; the tool changer F is provided with one or more reciprocating tool storage boxes F4; the fixture C and the tool storage box F4 reciprocate between the robot B and the worker respectively. In this automated grinding station, one robot B and one tool changer F work in conjunction with two sets of fixtures; during operation, one fixture C is grinding at the grinding station, and the other fixture C is loaded and unloaded by workers at the loading and unloading station; during the entire operation, no equipment is idle, so the production rhythm is compact, thereby improving production efficiency; and the number of robots B and tool changers F is reduced, so the manufacturing cost is reduced.

[0038] Furthermore, the tool changing table F includes a stand F1, on the top of which a carrier plate F2 is movably provided, and five tool storage boxes F4 are arranged side by side on the carrier plate F2, and move synchronously with the carrier plate F2; a push cylinder F3 is arranged between the stand F1 and the carrier plate F2, and the cylinder body of the push cylinder F3 is connected to the stand F1, and the rod body is connected to the carrier plate F2; when the push cylinder F3 is operating, the push cylinder F3 drives the carrier plate F2 to reciprocate on the stand F1, so that the storage box F4 moves back and forth between the robot B and the worker, so that the worker can replace the grinding tool on the storage box F4 conveniently.

[0039] Furthermore, the top opening of the tool storage box F4 is provided with a flap F5, one end of the flap F5 is hinged on the tool storage box F4, and a flip cylinder F6 is provided between the flap F5 and the tool storage box F4 or the carrier plate F2, the rod body of the flip cylinder F6 is hinged to the flap F5, and the cylinder body is hinged to the carrier plate F2; when the flip cylinder F6 is operating, the flip cylinder F6 drives the flap F5 to flip to open and close the opening of the tool storage box F4; when the grinding tool does not need to be replaced, the flap F5 closes the opening on the tool storage box F4 to prevent dust particles from affecting the grinding tool.

[0040] Furthermore, the conveyor line E includes a conveying support frame E1, and a transplanting rack E2 extending along the conveying direction is arranged on the top of the conveying support frame E1; a transplanting power assembly C6 is arranged at the bottom of the tooling fixture C, and the transplanting power assembly C6 includes a transplanting motor C6.1, and the output shaft of the transplanting motor C6.1 is connected to the transplanting gear C6.3 through the gearbox C6.2; the transplanting rack E2 and the transplanting gear C6.3 are meshed with each other to drive the tooling fixture C to move along the conveying direction.

[0041] Further, the tooling fixture C includes a transfer base plate C1, and a fixed seat C2 is provided at both ends of the transfer base plate C1; a first clamp assembly C4 for vertically clamping the workpiece H, and a second clamp assembly C3 for horizontally clamping the workpiece H are provided on the top of the fixed seat C2; the first clamp assembly C4 includes a clamp base C4.1, a connecting block C4.2, a clamp arm C4.3 and a clamp cylinder C4.4, the clamp base C4.1 is fixed to the top of the fixed seat C2, the clamp base C4.1 has a V-shaped groove for positioning the convex shaft H1 on the workpiece H, one end of the connecting block C4.2 is hinged to the clamp base C4.1, and the other end is hinged to the middle of the clamp arm C4.3, One end of the clamping arm C4.3 is hinged to one end of the clamp cylinder C4.4, and the other end of the clamp cylinder C4.4 is fixedly connected to the fixed seat C2; when the clamp cylinder C4.4 is working, it drives the other end of the clamping arm C4.3 to swing, so as to vertically loosen or vertically clamp the workpiece H; the second clamp assembly C3 includes a clamp screw C3.1 that is positioned and rotated on the fixed seat C2, and a transverse clamp block C3.2 that reciprocates on the top of the fixed seat C2, and the transverse clamp block C3.2 and the clamp screw C3.1 are screwed together. Rotating the clamp screw C3.1 manually or by a tool can drive the transverse clamp block C3.2 to slide on the fixed seat C2, so as to horizontally loosen or horizontally clamp the workpiece H.

[0042] Furthermore, the fixed seat C2 on one side is slidably arranged on the transplanting base plate C1, and an adjusting screw (not shown in the figure) is arranged between the fixed seat C2 and the transplanting base plate C1. The adjusting screw is positioned and rotated on the transplanting base plate C1 and is threadedly connected to the fixed seat C2. The fixing seat C2 can be driven to slide on the transplanting base plate C1 by rotating the adjusting screw manually or by a tool.

[0043] Furthermore, an end face positioning assembly C5 is provided between the fixing seats C2 at both ends of the transplanting base plate C1, and the end face positioning assembly C5 is fixed on the transplanting base plate C1; the end face positioning assembly C5 includes a positioning plate C5.1 for positioning the upper end face H2 of the connecting workpiece H, and the shape of the positioning plate C5.1 matches the upper end face H2.

[0044] Furthermore, the present automated polishing station further comprises a protective cover G, which covers the robot B, part of the conveyor line E and the tool changing station F; a first opening G1 corresponding to the conveyor line E and a second opening G2 corresponding to the tool changing station F are provided on the front side of the protective cover G, the conveying starting end of the conveyor line E is always exposed to the first opening G1 of the protective cover G, the tool storage box F4 enters and exits the second opening G2 of the protective cover G, a first lifting door G3 matching therewith is provided on the first opening G1, and a second lifting door G4 matching therewith is provided on the second opening G2.

[0045] Furthermore, the present automated grinding station also includes a station base D, on which an electric control cabinet A, a robot B, part of a conveyor line E and / or a tool changing table F are fixed, and external cables of the robot B, part of a conveyor line E and / or a tool changing table F are connected to the electric control cabinet A through the inner cavity of the station base D.

[0046] The above is a preferred embodiment of the present invention, which shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for illustrating the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An automated grinding station for a truck bridge housing, comprising an electric control cabinet (A) for controlling related electrical equipment; a robot (B) for completing the grinding work; a conveyor line (E) for loading and unloading a workpiece (H); a tool changer (F) for storing different grinding tools so that the robot (B) can change the tools; the characteristics are: Two conveyor lines (E) are provided, one robot (B) and one tool changer (F) are provided, and they are located between the two conveyor lines (E); a tool fixture (C) for fixing a workpiece (H) is provided on the conveyor line (E), and the tool fixture (C) reciprocates on the conveyor line (E); one or more reciprocating tool storage boxes (F4) are provided on the tool changer (F); the tool fixture (C) and / or the tool storage box (F4) reciprocate between the robot (B) and the worker; The tool changing table (F) comprises a stand (F1), a carrier plate (F2) is movably arranged on the stand (F1), and one or more tool storage boxes (F4) are arranged on the carrier plate (F2) and move with the carrier plate (F2); a push cylinder (F3) is arranged between the stand (F1) and the carrier plate (F2), one end of the push cylinder (F3) is connected to the stand (F1) and the other end is connected to the carrier plate (F2), and the push cylinder (F3) drives the carrier plate (F2) to reciprocate on the stand (F1); The opening of the tool storage box (F4) is provided with a flip cover (F5), one end of which is hinged on the tool storage box (F4), and a turning cylinder (F6) is provided between the flip cover (F5) and the tool storage box (F4) or the carrier plate (F2), one end of the turning cylinder (F6) is hinged to the flip cover (F5), and the other end is hinged to the tool storage box (F4) or the carrier plate (F2), and the turning cylinder (F6) drives the flip cover (F5) to turn over to open and close the opening of the tool storage box (F4); The tooling fixture (C) comprises a transfer base plate (C1), and both ends of the transfer base plate (C1) are provided with a fixed seat (C2); the fixed seat (C2) is provided with a first clamp assembly (C4) for vertically clamping a workpiece (H), and a second clamp assembly (C3) for horizontally clamping a workpiece (H); the first clamp assembly (C4) comprises a clamp base (C4.1), a connecting block (C4.2), a clamping arm (C4.3) and a clamp cylinder (C4.4); the clamp base (C4.1) is fixed on the fixed seat (C2), one end of the connecting block (C4.2) is hinged to the clamp base (C4.1), and the other end is hinged to the middle part of the clamping arm (C4.3), one end of the clamping arm (C4.3) is hinged to one end of the clamp cylinder (C4.4), and the clamp cylinder (C4.4) is hinged to the clamp base (C4.1). .4) and the other end is fixedly connected to the fixed seat (C2); when the clamp cylinder (C4.4) is working, the other end of the clamp arm (C4.3) swings to vertically loosen or vertically clamp the workpiece (H); the second clamp assembly (C3) includes a clamp screw (C3.1) that is positioned and rotated on the fixed seat (C2), and a transverse clamp block (C3.2) that reciprocates on the fixed seat (C2), the transverse clamp block (C3.2) and the clamp screw (C3.1) are screwed together, and rotating the clamp screw (C3.1) can drive the transverse clamp block (C3.2) to slide on the fixed seat (C2) to horizontally loosen or horizontally clamp the workpiece (H).

2. The automated grinding station for truck axle housing according to claim 1, characterized in that: At least one of the fixing seats (C2) is slidably arranged on the transplanting base plate (C1), and an adjusting screw is arranged between the fixing seat (C2) and the transplanting base plate (C1). The adjusting screw is positioned and rotated on the transplanting base plate (C1) and is threadedly connected to the fixing seat (C2). Rotating the adjusting screw can drive the fixing seat (C2) to slide on the transplanting base plate (C1).

3. The automated grinding station for truck axle housing according to claim 2, characterized in that: An end face positioning assembly (C5) is arranged between the fixing seats (C2) at both ends of the transplanting base plate (C1), and the end face positioning assembly (C5) is fixed on the transplanting base plate (C1); the end face positioning assembly (C5) comprises a positioning plate (C5.1) for positioning the end face of the connecting workpiece (H).

4. The automated grinding station for a truck axle housing according to any one of claims 1 to 3, characterized in that: The invention also comprises a protective cover (G), wherein the protective cover (G) covers the electric control cabinet (A), the robot (B), part of the conveyor line (E) and / or the tool changing table (F); the protective cover (G) is provided with a first opening (G1) corresponding to the conveyor line (E) and a second opening (G2) corresponding to the tool changing table (F); the conveying start end of the conveyor line (E) is always exposed to the first opening (G1) of the protective cover (G); a tool storage box (F4) enters and exits the second opening (G2) of the protective cover (G); a first lifting door (G3) matching therewith is provided on the first opening (G1), and a second lifting door (G4) matching therewith is provided on the second opening (G2).

5. The automated grinding station for truck axle housing according to claim 4, characterized in that: It also includes a workstation base (D), on which an electric control cabinet (A), a robot (B), part of the conveyor line (E) and / or a tool changing table (F) are fixed, and cables leading out of the robot (B), part of the conveyor line (E) and / or the tool changing table (F) are connected to the electric control cabinet (A) through the inner cavity of the workstation base (D).

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