A multi-type piston ring assembly machine

Abstract

The present invention discloses a multi-machine piston ring assembly machine, including a stand, a turntable mechanism, and a piston ring assembly machine. The upper surface of the stand is a working plane, a reinforcement frame is provided below the working plane, and an opening is provided on one side of the working plane; the turntable mechanism includes a turntable, a guide wheel, an annular guide rail, and a locking device, and the annular guide rail is provided with an annular guide rail groove; at least four guide wheels are annular and evenly rotated and connected to the lower surface of the turntable, and the lower part of the guide wheel is movably arranged in the guide rail groove; at least two piston ring assembly machines of different specifications are evenly distributed in the circumferential direction of the upper surface of the turntable; the lower surface of the annular guide rail is fixed on the reinforcement frame of the stand; the position of the opening corresponds to the installation position of the piston ring assembly machine; and the locking device is used to limit the rotation of the turntable. The present invention has the advantages of improving production efficiency, reducing labor intensity, ensuring quality, and improving competitiveness.

Description

Technical Field

[0001] The invention relates to the technical field of engine parts assembly, in particular to a multi-type piston ring assembly machine. Background Art

[0002] At present, the piston ring assembly machine used in production is a single-unit type, one model corresponds to one piston ring assembly machine, and the positioning of different models can only be adjusted by adjusting the pad, and the gas ring, oil scraper ring, and oil ring of the engine piston are placed in the groove of the piston fixture, and then assembled. When switching models, the disassembly and assembly of the adjustment pad in this solution is relatively complicated and time-consuming, resulting in the inability to quickly perform assembly operations after switching models.

[0003] The existing patented technology of a piston ring installation tool (CN102310388A) is a patent previously completed by the inventor of this application. The installation tool of this patented technology is used for a single machine and a single model. When switching models, the piston ring needs to be transferred and another model of installation tool needs to be used. However, setting up multiple installation tools of different models occupies a large workshop space, further compressing the limited workshop space, and the installation tool is exposed in the workshop for a long time and is easily contaminated with dust.

[0004] The disclosure of the above background technology content is only used to assist in understanding the concept and technical solution of the present invention. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above content has been disclosed on the filing date of this patent application, the above background technology should not be used to evaluate the novelty and creativity of the present application. Summary of the invention

[0005] The purpose of the present invention is to propose a multi-model piston ring assembly machine for the floor-standing mechanized assembly of piston gas rings, oil scraper rings and oil rings of multiple models of engines compatible with multiple models of engines on the same production line, so as to achieve the purpose of improving production efficiency, reducing labor intensity, ensuring quality and improving competitiveness.

[0006] To this end, the present invention proposes a multi-machine piston ring assembly machine.

[0007] Preferably, the present invention may also have the following technical features:

[0008] A multi-machine piston ring assembly machine comprises a stand, a turntable mechanism, and a piston ring assembly machine, wherein the upper surface of the stand is a working plane, a reinforcing frame is provided below the working plane, and an opening is provided on one of the sides of the working plane; the reinforcing frame is connected and fixed to four legs of the stand; the turntable mechanism comprises a turntable, guide wheels, annular guide rails, and a locking device, and the annular guide rails are provided with annular guide rail grooves; at least four of the guide wheels are annular and evenly rotatably connected to the lower surface of the turntable, and the lower part of the guide wheel is movably arranged in the guide rail grooves; at least two piston ring assembly machines of different specifications are evenly distributed in the circumferential direction of the upper surface of the turntable; the lower surface of the annular guide rail is fixed to the reinforcing frame of the stand; the position of the opening corresponds to the installation position of the piston ring assembly machine; the locking device is used to limit the rotation of the turntable.

[0009] Furthermore, the size of the opening is larger than the size of the piston ring assembly machine.

[0010] Furthermore, it also includes a protrusion and a stopper, wherein the protrusion is fixed on the lower surface of the turntable; the stopper is fixed on the annular guide rail; and the protrusion and the stopper interfere with each other after the turntable rotates a certain angle.

[0011] Furthermore, the annular guide rail is also provided with a central weight-removing hole.

[0012] Furthermore, it also includes a piston ring frame, which has a "Y"-shaped structure, including a main board, two wing plates, and an adjustment block, wherein the two wing plates are respectively hinged on the left and right sides of the main board; the wing plates and the main board are also connected by a torsion spring, so that the two wing plates have a tendency to flip toward the rear side of the main board; the rear side of the main board is provided with an open groove in the horizontal direction, and the main board body above the open groove forms a guide rod for assembling the adjustment block; the adjustment block is slidably arranged on the guide rod and is limited by a locking bolt.

[0013] Furthermore, the adjustment block is a hollow cavity, and a screw hole for assembling the locking bolt is provided on the side wall of the adjustment block.

[0014] Furthermore, it also includes an insertion board, the front side of the main board is provided with a longitudinal slot, the rear end of the insertion board is installed in the slot in a clearance fit manner, and chamfered limit blocks are provided on the left and right sides of the front end, so that the horizontal cross-section of the insertion board is arrow-shaped.

[0015] Furthermore, it also includes a second locking bolt, the side wall of the slot is provided with a second screw hole, and the second locking bolt is arranged in the second screw hole.

[0016] Furthermore, it also includes a magnet, the bottom surface of the piston ring frame is provided with a mounting hole, and the magnet is arranged in the mounting hole.

[0017] Furthermore, the locking device is a fastening bolt.

[0018] The beneficial effects of the present invention compared with the prior art include:

[0019] (1) By arranging a plurality of piston ring assembly machines of different models on the turntable, operators can assemble piston rings on pistons of different sizes at the same workstation without disassembly and assembly, thereby improving work efficiency; at the same time, a plurality of piston ring assembly machines of different models are assembled on the turntable, thus saving a large amount of workshop space;

[0020] (2) A deweighting hole is set in the center of the annular guide rail, which can reduce the weight of the guide rail on the one hand, and make room for the cylinder of the piston ring assembly machine on the other hand;

[0021] (3) A piston ring rack is set on the stand to effectively prevent the piston rings from falling and facilitate their removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention.

[0023] Figure 2 It is a side structural diagram of the present invention.

[0024] Figure 3 It is a top view of a turntable of the present invention.

[0025] Figure 4 It is a top view of the piston ring carrier of the present invention.

[0026] Figure 5 It is a front view of a piston ring carrier of the present invention.

[0027] Figure 6 It is a schematic diagram of the main board structure of the piston ring holder of the present invention.

[0028] Figure 7 It is a cross-sectional view of the piston ring support adjusting block of the present invention.

[0029] Figure 8 It is a top view of the annular guide rail of the present invention.

[0030] Fig. 9 yes Figure 8 main view. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below in conjunction with specific implementations and with reference to the accompanying drawings. It should be emphasized that the following description is merely exemplary and is not intended to limit the scope of the present invention and its application.

[0032] Non-limiting and non-exclusive embodiments will be described with reference to the following figures, wherein like reference numerals refer to like parts unless otherwise specifically stated.

[0033] like Figure 1-9 A multi-machine piston ring assembly machine shown includes a stand 1, a turntable mechanism, and a piston ring assembly machine 3. The stand 1 is a square table structure, and its upper surface is a working plane 11. Its four legs 14 are connected by a horizontally arranged reinforcing frame 13 to enhance the stability of the stand 1. A foot 15 is provided at the lower end of the leg 14 to facilitate fixing the stand 1 on the bottom surface to avoid collision and displacement. An opening 12 is provided on one of the sides of the working plane 11 of the stand 1, and the opening 12 is provided on the center line of the working plane 11. The opening 12 is provided so that the operator can observe the assembly process of the piston ring through the opening 12, and can promptly discover and correctly handle any errors in the assembly process. The turntable mechanism is arranged on the reinforcing frame 13 of the stand 1. Specifically, the turntable mechanism includes a turntable 2, a guide wheel 25, and an annular guide rail 21, and the diameter of the turntable 2 is the same as that of the annular guide rail 21. The upper surface of the rotating disk 2 is evenly distributed with at least two different specifications of piston ring assembly machines to adapt to the assembly of piston rings of different sizes. Figure 8-9, the annular guide rail 21 is provided with an annular guide rail groove 24 and a central deweighting hole 22. The turntable 2 is arranged above the annular guide rail 21 through the guide wheels 25. The six guide wheels are annular and evenly fixed on the lower surface of the turntable 2. Each guide wheel 25 falls into the annular guide rail groove 24 and moves along the stroke of the annular guide rail groove 24 to realize the rotation of the turntable 2 around its center. The lower surface of the annular guide rail 21 is welded and fixed on the reinforcing frame 13 of the bench 1. By fixing multiple piston ring assembly machines of different models on the turntable 2, the assembly requirements of piston models of different sizes can be met. During assembly, the operator stands in front of the opening 12 of the working plane 11 of the bench 1, manually rotates the turntable 2 according to the model of the piston, rotates the piston ring assembly machine that meets the piston size to the bottom of the opening 12, and fixes the turntable 2 with a locking device to limit the rotation of the turntable 2. A connecting plate extending to the top of the turntable 2 is provided on the stand 1, and a screw hole is provided on the connecting plate. A fastening bolt is screwed into the screw hole so that the lower end of the fastening bolt abuts against the turntable 2, thereby clamping the turntable 2. In order to improve the convenience of operation, the size of the opening 12 is larger than the size of the piston ring assembly machine 3. A protrusion extends from the lower surface of the turntable 2, and a stopper 23 for limiting the protrusion is welded and fixed on the annular guide rail 21, so that the turntable 2 reciprocates within a range of 360°. The stopper 23 and the protrusion are in the same concentric circle, and the mutual interference between the stopper 23 and the protrusion is used to limit the rotation direction of the turntable 2. In this embodiment, the piston ring assembly machine 3 adopts a patented technology: a piston ring installation tool (CN102310388A), and 6 piston ring assembly machines suitable for different pistons are evenly arranged on the circumference of the turntable 2. The central deweighting hole 22 of the annular guide rail 21 can reduce the weight of the annular guide rail 21 on the one hand, and can also make room for the cylinder 31 of the piston ring assembly machine 3 on the other hand. In order to facilitate the use of the present application, a quick connector is used to supply air to the piston ring assembly machine used, and the cylinder 31 of the piston ring assembly machine 3 only needs to leave an air pipe to connect the quick connector, thereby preventing the connecting rods of the cylinder 31 from being entangled with each other and being easily damaged.

[0034] When assembling piston rings, it is necessary to place the piston rings to be assembled on the working plane of the stand 1 for easy picking. According to the characteristics of the piston rings, the piston rings are generally stacked at a certain height to avoid deformation of the piston rings. Since the piston ring assembly machine 3 uses the cylinder 31 as the power, there is a certain vibration during use, which may cause the stacked piston rings to fall down; moreover, in the workshop, there are dense personnel exchanges and material handling, which may also collide with the stand and cause the piston rings to fall; since the piston rings have no objects to maintain their state, they need to be handled carefully when they are taken for use, which affects work efficiency. Therefore, the aforementioned technical problem is not solved, and a piston ring rack is placed on the working plane 11. Refer to Figure 4-7The piston ring frame is in a Y-shaped structure as a whole, and includes a main board 4, two wing plates 5, and an adjustment block 6. The two wing plates 5 are symmetrically assembled on the left and right sides of the main board 4 through hinges 71. The wing plates 5 and the main board 4 are also connected by a torsion spring 7, so that the two wing plates 5 have a tendency to flip toward the rear side of the main board 4. The adjustment block 6 is installed on the rear side of the main board 4, which is a hollow cavity with a screw hole on the side wall of the top surface. The rear side of the main board 4 is provided with an open groove 62 along the horizontal direction, and the height of the open groove 62 is greater than the thickness of the side wall of the adjustment block 6. The upper wall of the open groove 62 to the plate body on the upper surface of the main board 4 forms a guide rod for assembling the adjustment block 6. The adjustment block 6 is slidably arranged on the guide rod and locked by a locking bolt 61.

[0035] The above technical scheme also includes a plug-in board 8, and a longitudinal slot 41 is provided on the front side of the main board 4, and the plug-in board 8 is installed in the slot 41 in a clearance fit manner; the side wall of the slot 41 is provided with a second screw hole 42, which is used to connect the second locking bolt 81 to lock the plug-in board 8. The rear end of the plug-in board 8 is clearance-fitted with the slot 41, and chamfered limit blocks are provided on the left and right sides of the front end, so that the horizontal cross-section of the plug-in board 8 is arrow-shaped. The material of the plug-in board 8 and the chamfered limit blocks 82 is hard clinker. When in use, the plug-in board 8 is received in the slot 41, and then the piston ring is sleeved outside the piston ring frame. After the piston ring is stacked to a certain height, the plug-in board 8 is extended out of the slot 41 while adjusting the position of the plug-in board 8, so that the front end of the plug-in board 8 abuts against the inner side of the piston ring or the opening of the piston ring, and the ends of the two wing plates 5 also abut against the inner side of the piston ring, and the second locking bolt 81 is locked to fix the plug-in board 8, thereby fixing the piston ring. When the insert plate 8 is inserted into the opening of the piston ring, the chamfer at the front end thereof is used to clamp the opening of the piston ring, which can effectively prevent the piston ring from rotating and prevent the piston ring frame from moving. A mounting hole is provided on the bottom surface of the piston ring frame, and the magnet is arranged in the mounting hole. The suction force of the magnet is used to enhance the stability of the piston ring frame to prevent the piston ring from falling sideways due to a slight collision.

[0036] Those skilled in the art will appreciate that numerous variations to the above description are possible, and that the examples and figures are intended only to describe one or more specific implementations.

[0037] Although what is considered as exemplary embodiments of the present invention has been described and described, it will be understood by those skilled in the art that various changes and substitutions may be made thereto without departing from the spirit of the present invention. In addition, many modifications may be made to adapt specific situations to the teachings of the present invention without departing from the central concept of the present invention described herein. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but the present invention may also include all embodiments and their equivalents that fall within the scope of the present invention.

Claims

1. A multi-machine piston ring assembly machine, characterized in that: It includes a stand, a turntable mechanism, and a piston ring assembly machine. The upper surface of the stand is a working plane, a reinforcement frame is provided below the working plane, and an opening is provided on one of the sides of the working plane; the reinforcement frame is connected and fixed to the four legs of the stand; the turntable mechanism includes a turntable, a guide wheel, an annular guide rail, and a locking device, and the annular guide rail is provided with an annular guide rail groove; at least four guide wheels are annular and evenly rotated and connected to the lower surface of the turntable, and the lower part of the guide wheel is movably arranged in the guide rail groove; at least two piston ring assembly machines of different specifications are evenly distributed in the circumferential direction of the upper surface of the turntable; the lower surface of the annular guide rail is fixed to the reinforcement frame of the stand; the position of the opening corresponds to the installation position of the piston ring assembly machine; the locking device is used to limit the rotation of the turntable; It also includes a piston ring frame, which is in a "Y"-shaped structure and includes a main board, two wing plates, and an adjustment block. The two wing plates are hinged on the left and right sides of the main board respectively; the wing plates and the main board are also connected by a torsion spring, so that the two wing plates have a tendency to flip toward the rear side of the main board; the rear side of the main board is provided with an open groove in the horizontal direction, and the main board body above the open groove forms a guide rod for assembling the adjustment block; the adjustment block is slidably arranged on the guide rod and is limited by a locking bolt; It also includes a convex block and a stopper, wherein the convex block is fixed on the lower surface of the turntable; the stopper is fixed on the annular guide rail; the convex block and the stopper interfere with each other after the turntable rotates a certain angle; It also includes an insert board, the front side of the main board is provided with a longitudinal slot, the rear end of the insert board is installed in the slot in a clearance fit manner, and chamfered limit blocks are provided on the left and right sides of the front end, so that the horizontal cross section of the insert board is arrow-shaped; It also includes a magnet. The bottom surface of the piston ring frame is provided with a mounting hole, and the magnet is arranged in the mounting hole.

2. A multi-machine piston ring assembly machine according to claim 1, characterized in that: The size of the opening is larger than the size of the piston ring assembly machine.

3. A multi-machine piston ring assembly machine according to claim 1, characterized in that: The annular guide rail is also provided with a central weight-removing hole.

4. A multi-machine piston ring assembly machine according to claim 1, characterized in that: The adjusting block is a hollow cavity, and a screw hole for assembling the locking bolt is provided on the side wall of the adjusting block.

5. A multi-machine piston ring assembly machine according to claim 1, characterized in that: It also includes a second locking bolt. The side wall of the slot is provided with a second screw hole, and the second locking bolt is arranged in the second screw hole.

6. A multi-machine piston ring assembly machine according to claim 1, characterized in that: The locking device is a fastening bolt.

Images