Universal engine cylinder block machining roll-over stand

Abstract

A universal engine cylinder body machining roll-over stand comprises a stand body, an upper roller way, a lower roller way, an upper jacking mechanism, a lower jacking mechanism and a pressing mechanism, the upper roller way and the lower roller way are arranged in the stand body and connected with the upper jacking mechanism and the lower jacking mechanism respectively, and the upper jacking mechanism and the lower jacking mechanism are arranged on the upper side and the lower side of the stand body respectively. The pressing mechanism is arranged on the upper jacking mechanism, and the upper jacking mechanism and the lower jacking mechanism are connected to the frame body through the position adjusting mechanism. According to the utility model, the upper roller way and the lower roller way move up and down and turn over, so that the material ways of the previous working procedure and the next working procedure are in normal butt joint, the processing surface of a workpiece is automatically turned over, and the machine is compatible with engine cylinders with different thicknesses, thereby saving labor and improving the production efficiency.

Description

Technical Field

[0001] This utility model relates to a device for flipping an engine cylinder block during processing, belonging to the field of engine cylinder block processing technology. Background Technology

[0002] Automated machining lines for engine blocks typically process various types of workpieces, machining both the top and bottom surfaces of the workpiece (engine block) in two operations (one operation machining one surface). When the previous operation completes machining one surface, the workpiece needs to be flipped so that the unmachined surface faces upwards for machining in the next operation. This requires flipping the engine block, which is usually done by an automated line flipping machine.

[0003] The existing automatic line turning machine has a fixed upper and lower conveyor roller structure, which can only convey workpieces of one thickness and is only applicable to engine cylinder blocks of the same thickness. When processing engine cylinder blocks of different thicknesses, the workpieces need to be turned manually, which occupies production time, increases labor costs and affects production efficiency. Summary of the Invention

[0004] This invention addresses the shortcomings of existing automatic engine block turning machines by providing a universal engine block machining turning machine applicable to engine blocks of different thicknesses.

[0005] The universal engine cylinder block machining tilting frame of this utility model adopts the following technical solution.

[0006] The tilting frame includes a frame body, an upper roller conveyor, a lower roller conveyor, an upper lifting mechanism, a lower lifting mechanism, and a pressing mechanism. The upper and lower roller conveyors are placed in the frame body and are respectively connected to the upper and lower lifting mechanisms. The upper and lower lifting mechanisms are respectively located on the upper and lower sides of the frame body. The pressing mechanism is located on the upper lifting mechanism. The upper and lower lifting mechanisms are respectively connected to the frame body through position adjustment mechanisms.

[0007] The position adjustment mechanism includes an adjustment seat and an adjustment bolt. The adjustment bolt is installed on the adjustment seat and is connected to the upper or lower lifting mechanism. By adjusting the bolt through lifting and tightening, the upper and lower lifting mechanisms can be aligned with the material channels in the material inlet and outlet directions after installation.

[0008] The frame consists of two rotating discs, left and right, which are connected by a connecting rod. The rotating discs have square holes, and the upper and lower roller conveyors are located in the square holes of the two rotating discs.

[0009] The upper lifting mechanism includes an upper lifting cylinder and an upper connecting seat. The upper lifting cylinder is mounted on the upper connecting seat, which is connected to the frame. The piston rod of the upper lifting cylinder is connected to the roller frame of the upper roller conveyor. The pressing mechanism is located on the upper connecting seat, which is connected to the position adjusting mechanism. The extension and retraction of the piston rod of the upper lifting cylinder drives the upper roller conveyor to rise and fall.

[0010] The lower lifting mechanism includes a lower lifting cylinder and a lower connecting seat. The lower lifting cylinder is mounted on the lower connecting seat, which is connected to the frame. The piston rod of the lower lifting cylinder is connected to the roller frame of the lower roller conveyor, and the lower connecting seat is connected to the position adjustment mechanism. The extension and retraction of the piston rod of the lower lifting cylinder drives the lower roller conveyor to rise and fall.

[0011] The lower roller conveyor and the lower roller conveyor adopt existing roller conveyor technology.

[0012] The clamping mechanism includes a clamping cylinder and a clamping plate, with the clamping plate connected to the piston rod of the clamping cylinder. Its function is to clamp thin workpieces (workpieces that cannot be pressed down when both the upper and lower lifting mechanisms are in position) when passing through them.

[0013] Both the upper and lower roller conveyors are equipped with guiding mechanisms between themselves and the frame, which guide the upper and lower roller conveyors during their vertical movement. Each guiding mechanism includes a guide shaft mounted on the upper or lower roller conveyor and a guide sleeve mounted on the frame, with the guide shaft housed within the guide sleeve. The guide shaft moves within the guide sleeve, guiding the vertical movement of the upper or lower roller conveyor.

[0014] The frame is equipped with a stopping mechanism for stopping the conveyed workpiece. The stopping mechanism uses a cylinder.

[0015] The frame is equipped with a flipping limit block, which serves to limit the frame when it is flipped.

[0016] The frame is equipped with an adjustable guide mechanism, which includes a fixed seat and a guide rod. The fixed seat is installed on the frame and has an elongated hole. The guide rod is installed in the elongated hole of the fixed seat and can be adjusted in the elongated hole to guide workpieces of different widths when they pass through.

[0017] When material arrives at the previous process's feed chute, the lower lifting mechanism rises to its highest position, activating the lower roller conveyor to move the workpiece onto it. When the engine cylinder block is a thicker workpiece, the upper lifting mechanism drives the upper roller conveyor to press it down. When the engine cylinder block is a thin workpiece, the pressing mechanism presses it down. After the workpiece is pressed down, the frame rotates 180° via a transmission mechanism (a common structure in tilting machines). Once tilted into position, the upper lower lifting mechanism drives the lower roller conveyor back to its original position (away from the workpiece), and the lower upper lifting mechanism drives the upper roller conveyor to align with the feed chute of the next process. The upper roller conveyor then activates, transporting the workpiece to the feed chute of the next process. The frame then rotates 180° again, and the lower and upper lifting mechanisms reset the lower and upper roller conveyors, ready to receive material from the previous process again.

[0018] This invention enables the material channels of the previous and subsequent processes to be properly connected by the up-and-down movement and flipping of the upper and lower roller conveyors, automatically flipping the workpiece processing surface, and is compatible with engine cylinder blocks of different thicknesses, saving labor and improving production efficiency. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the universal engine cylinder block machining tilting frame of this utility model.

[0020] Figure 2 This is the main structural view of the universal engine cylinder block machining tilting frame of this utility model.

[0021] Figure 3 yes Figure 2 The right view.

[0022] The components are: 1. Frame, 2. Upper roller conveyor, 3. Lower roller conveyor, 4. Upper lifting mechanism, 5. Lower lifting mechanism, 6. Pressing mechanism, 7. Stopping mechanism, 8. Adjustable guide mechanism, 9. Roller conveyor motor, 10. Guide shaft, 11. Upper lifting cylinder, 12. Lower lifting cylinder, 13. Cable chute, 14. Tilting limit block, 15. Double row sprocket, 16. Position adjustment mechanism, 17. Lower connecting seat, 18. Guide sleeve, 19. Roller frame, 20. Upper connecting seat, 21. Roller, 22. Square hole, 23. Tilting disc, 24. Connecting rod. Detailed Implementation

[0023] like Figure 1 , Figure 2 and Figure 3As shown, the universal engine cylinder block machining tilting frame of this utility model includes a frame body 1, an upper roller conveyor 2, a lower roller conveyor 3, an upper lifting mechanism 4, a lower lifting mechanism 5, a pressing mechanism 6, and a stopping mechanism 7. The upper roller conveyor 2 and the lower roller conveyor 3 are disposed within the frame body 1. The upper roller conveyor 2 is connected to the upper lifting mechanism 4, and the lower roller conveyor 3 is connected to the lower lifting mechanism 5. The upper lifting mechanism 4 and the lower lifting mechanism 5 are respectively disposed on the upper and lower sides of the frame body 1, with the upper lifting mechanism 4 located above the upper roller conveyor 2 and the lower lifting mechanism 5 located below the lower roller conveyor 3.

[0024] The frame 1 is connected to the drive motor via a transmission mechanism (a common structure for tilting machines, not shown in the figure). The drive motor is fixed on the base and drives the frame 1 to rotate via the transmission mechanism.

[0025] The frame 1 consists of two rotating discs 23, one on the left and one on the right. The two rotating discs 23 are connected together by four connecting rods 24. Square holes 22 are provided in the two rotating discs 23 (see...). Figure 3 The upper roller conveyor 2 and the lower roller conveyor 3 are set one above the other in the square holes 22 of the two rotating discs.

[0026] The upper roller conveyor 2 and the lower roller conveyor 3 adopt existing roller conveyor technology, see [link / reference] Figure 2 and Figure 3 It consists of a roller frame 19, rollers 21, a roller conveyor motor 9, and double-row sprockets 15. Several rollers are arranged on the roller frame and mounted on it via bearings. Each roller 21 has a double-row sprocket 15 mounted at one end, and adjacent double-row sprockets 15 are connected by chains. The first roller is connected to the shaft of the roller conveyor motor 9, which is mounted on an upper connecting seat 20 or a lower connecting seat 17. The rollers 21 rotate via the roller conveyor motor 9 and chain drive. The roller frame 19 is connected to an upper lifting mechanism 4 or a lower lifting mechanism 5.

[0027] The upper lifting mechanism 4 includes an upper lifting cylinder 11 and an upper connecting seat 20. The upper lifting cylinder 11 is mounted on the upper connecting seat 20, and the upper connecting seat 20 is fixed to the two side tilting discs 23 by bolts. The piston rod of the upper lifting cylinder 11 is connected to the roller frame of the upper roller conveyor 2, and the extension and retraction of the piston rod of the upper lifting cylinder 11 drives the upper roller conveyor 2 to rise and fall.

[0028] The lower lifting mechanism 5 includes a lower lifting cylinder 12 and a lower connecting seat 17. The lower lifting cylinder 12 is mounted on the lower connecting seat 17, which is fixed to the two side tilting discs 23 by bolts. The piston rod of the lower lifting cylinder 12 is connected to the roller frame of the lower roller conveyor 3, and the extension and retraction of the piston rod of the lower lifting cylinder 12 drives the lower roller conveyor 3 to rise and fall.

[0029] To facilitate the adjustment of the positions of the upper lifting cylinder 11 and the lower lifting cylinder 12, and to ensure that the upper and lower lifting mechanisms are aligned with the material channels in the incoming and outgoing directions after installation, position adjustment mechanisms 16 are provided between the upper connecting seat 20 and the two side tilting discs 23, and between the lower connecting seat 17 and the two side tilting discs 23. Each position adjustment mechanism 16 includes an adjustment seat and an adjustment bolt. The adjustment seat has an elongated hole, and the adjustment bolt is inserted into the elongated hole. The adjustment bolt is connected to the upper connecting seat 20 or the lower connecting seat 17. The position of the entire upper lifting mechanism 4 or lower lifting mechanism 5 is adjusted by lifting and tightening the bolt.

[0030] The upper connecting seat 20 and the lower connecting seat 17 are provided with drag chain grooves 13 to protect the double-row sprockets 15 and the drive chain on the upper roller conveyor 2 and the lower roller conveyor 3.

[0031] See Figure 1 The upper lifting mechanism 4 is equipped with a pressing mechanism 6, which consists of a pressing cylinder and a pressing plate. The pressing plate is connected to the piston rod of the pressing cylinder. The pressing cylinder is mounted on the upper connecting seat 20 of the upper lifting mechanism 4. When a thin workpiece passes through, if it still cannot be pressed down when both the upper and lower lifting mechanisms are in position (the distance between the upper roller conveyor 2 and the lower roller conveyor 3 is at its minimum), the pressing mechanism 6 will press it down.

[0032] Guide mechanisms are installed between the upper roller conveyor 2 and the lower roller conveyor 3 and the frame 1, serving to guide the upper roller conveyor 2 and the lower roller conveyor 3 during their lifting and lowering movements. (See also...) Figure 2 The guiding mechanism includes a guide shaft 10 mounted on the upper roller conveyor 2 and a guide sleeve 18 mounted on the tilting frame. The guide shaft 10 is placed within the guide sleeve 18, which is an oil-free bushing with a simple and reliable structure to increase stability during the tilting process. The guide shaft 10 moves with the upper roller conveyor 2 within the guide sleeve 18, guiding the up-and-down movement of the upper roller conveyor 2.

[0033] See Figure 1 A stopping mechanism 7 is installed on a tilting plate 23 of the frame 1 to stop the conveyed workpiece. The stopping mechanism 7 is a cylinder.

[0034] See Figure 2 The flip plate 23 is equipped with a flip limit block 14, which plays a limiting role when the frame 1 is flipped.

[0035] See Figure 3 The rotating disk 23 is also equipped with an adjustable guide mechanism 8, which includes a fixed seat and a guide rod. The fixed seat is installed on the rotating disks on both sides. The fixed seat is provided with an elongated hole, and the guide rod is installed in the elongated hole of the fixed seat. The position can be adjusted in the elongated hole to guide workpieces of different widths when they pass through.

[0036] The operation process of the above-mentioned flipping machine is as follows.

[0037] When the workpiece arrives at the feed channel of the previous process, it enters the lower roller conveyor 3. The lower lifting cylinder 12 drives the lower roller conveyor 3 to its highest position (maximum stroke of the piston rod of the lower lifting cylinder 12). The lower roller conveyor 3 then runs (the roller conveyor motor 9 starts), and the workpiece moves onto the lower roller conveyor 3 and is stopped by the stop mechanism 7. When the workpiece is relatively thick, the piston rod of the upper lifting cylinder 11 extends, causing the upper roller conveyor 2 to press the workpiece. When the workpiece is thin, when the piston rod of the upper lifting cylinder 11 is fully extended but still some distance from the workpiece, it is pressed by the pressing mechanism 6, and the workpiece is pressed onto the lower roller conveyor 3. Then, the drive motor starts, causing the frame 1 to rotate 180°. After rotating to the correct position, the lower roller conveyor 3 and the lower lifting cylinder 12 are at the upper part, and the upper roller conveyor 2 and the upper lifting cylinder 11 are at the lower part. The piston rod of the lower lifting cylinder 12 retracts, and the lower roller conveyor 3 moves away from the workpiece. The piston rod of the upper lifting cylinder 11 extends fully, making the upper roller conveyor 2 level with the next material conveyor (consistent height), and the roller motor in the upper roller conveyor 2 is started to transport the workpiece to the material conveyor of the next process.

[0038] The drive motor drives the frame 1 to rotate 180° again, so that the upper roller conveyor 2 and the lower roller conveyor 3 are in the upper and lower positions respectively, and the piston rod of the upper lifting cylinder 11 retracts, while the piston rod of the lower lifting cylinder 12 extends, waiting for the previous material to arrive again.

Claims

1. A general-purpose engine block processing turn-over stand, characterized by, The rack body, upper roller way, lower roller way, upper lifting mechanism, lower lifting mechanism and pressing mechanism, the upper roller way and lower roller way are arranged in the rack body and connected with the upper lifting mechanism and lower lifting mechanism respectively, the upper lifting mechanism and lower lifting mechanism are arranged on the upper side and lower side of the rack body respectively, and the pressing mechanism is arranged on the upper lifting mechanism.

2. The universal engine block machining tumbler of claim 1, wherein, The position adjusting mechanism comprises an adjusting seat and an adjusting bolt, the adjusting seat is provided with the adjusting bolt, and the adjusting bolt is connected with the upper lifting mechanism or lower lifting mechanism.

3. The universal engine block machining tumbler of claim 1, wherein, The rack body is composed of two left and right turnover discs which are connected together through connecting rods, and the square holes are arranged in the turnover discs, and the upper roller way and lower roller way are arranged in the square holes of the two turnover discs.

4. The universal engine block machining tumbler of claim 1, wherein, The upper lifting mechanism comprises an upper lifting cylinder and an upper connecting seat, the upper lifting cylinder is installed on the upper connecting seat, the upper connecting seat is connected with the rack body, the piston rod of the upper lifting cylinder is connected with the roller frame of the upper roller way, the pressing mechanism is arranged on the upper connecting seat, and the upper connecting seat is connected with the position adjusting mechanism.

5. The universal engine block machining tumbler of claim 1, wherein, The lower lifting mechanism comprises a lower lifting cylinder and a lower connecting seat, the lower lifting cylinder is installed on the lower connecting seat, the lower connecting seat is connected with the rack body, the piston rod of the lower lifting cylinder is connected with the roller frame of the lower roller way, and the connecting seat is connected with the position adjusting mechanism.

6. The universal engine block machining tumbler of claim 1, wherein, The pressing mechanism comprises a pressing cylinder and a pressing plate, and the pressing plate is connected with the piston rod of the pressing cylinder.

7. The universal engine block machining tumbler of claim 1, wherein, The upper roller way and lower roller way are provided with guiding mechanisms between the rack body, the guiding mechanism comprises a guide shaft arranged on the upper roller way or lower roller way and a guide sleeve arranged on the rack body, and the guide shaft is arranged in the guide sleeve.

8. The universal engine block machining tumble fixture of claim 1, wherein, The rack body is provided with a stop mechanism, and the stop mechanism adopts a cylinder.

9. The universal engine block machining tumble fixture of claim 1, wherein, The rack body is provided with a turnover limiting block.

10. The universal engine block machining tumble fixture of claim 1, wherein, The rack body is provided with an adjustable guiding mechanism, the adjustable guiding mechanism comprises a fixed seat and a guide rod, the fixed seat is installed on the rack body, the fixed seat is provided with a long hole, and the guide rod is installed in the long hole of the fixed seat.

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