Piston ring mouth side chamfering device and chamfering method thereof

Abstract

The present application relates to the technical field of piston ring production, in particular to a piston ring mouth side chamfering equipment and chamfering method, which comprises a base, the top of the base is provided with a supporting plate, the opposite sides of the top of the supporting plate are symmetrically provided with a pressing plate assembly, the two ends of a feeding channel are respectively a processing end and a feeding end, the processing end of the feeding channel is provided with a positioning pin matched with the opening of the piston ring, the feeding end of the feeding channel is provided with a feeding mechanism, and the feeding mechanism is used for conveying the piston ring, the base, the supporting plate, the feeding mechanism and the positioning pin are arranged, and the motor and the grinding rod are matched for processing during processing, so that the piston ring can be positioned through the positioning pin and the pressing plate assembly during the processing of the mouth side chamfering, and automatic feeding is realized through the feeding mechanism, so that the piston ring mouth side chamfering realizes standardization and mass production, that is, precise processing and automation can be realized, and the processing efficiency and precision of the opening side chamfering of the piston ring are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of piston ring production, in particular to a piston ring mouth side chamfering device and a chamfering method thereof. BACKGROUND

[0002] Reducing the impact of the piston ring on the piston ring bank during high-speed reciprocating motion is an important issue. The sharp corners formed by the open surface of the piston ring and the side surface of the piston ring will become more intense as the sharp corners become smaller during the complex motion of the piston ring at high speed. This is especially true when the piston hardness decreases at a higher temperature, which can easily cause the piston ring bank to break and the piston ring to jam. If the chamfer is too large, it will increase the air leakage channel and the amount of blow-by gas, and the emissions will not meet the standards. Piston ring processing is a high-precision machining process that generally requires about 20 auxiliary processes to form, which can easily cause the corners of the mouth side to be sharp.

[0003] Due to the combination of various specifications and ring heights of the piston ring, it is difficult to form a standard device, and there are currently two main methods of processing. Method 1: manual chamfering to remove sharp corners, using oil stones or files to process the target processing area, which has the disadvantage of low efficiency and difficulty in accurately controlling the shape and size of the chamfer. Method 2: using a specially designed brush with a power head, rotating according to the mechanical design law, using a conveyor belt to feed, and rotating the brush disc at high speed to grind the chips to achieve the purpose of removing sharp corners. The disadvantage of this method is that the equipment is expensive and requires high-quality brushes. The entire side surface of the piston ring must be processed during the processing process, which can cause the R angle of the outer circle to be processed to be large, and there is a risk of damaging the coating. Therefore, there is an urgent need for a piston ring mouth side chamfering device and a chamfering method to solve the above problems. SUMMARY

[0004] The present application aims to provide a piston ring mouth side chamfering device to solve the problems mentioned in the background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a piston ring mouth side chamfering device, comprising a base, a support plate is installed on the top of the base, two pressure plate assemblies are symmetrically installed on the top of the support plate on opposite sides, a spacing is provided between the two pressure plate assemblies to form a feeding channel, the feeding channel has a processing end and a feeding end at both ends, a positioning pin matched with the opening of the piston ring is arranged at the processing end of the feeding channel, and a feeding mechanism is installed at the feeding end of the feeding channel, which is used to convey the piston ring.

[0006] The pressure plate assembly comprises a lower pressure plate, a middle pressure plate and an upper pressure plate which are stacked in sequence, the side surface of the two middle pressure plates close to each other is an inclined surface, and the two inclined surfaces are in a converging shape from the feeding end to the processing end, and the side surface of the lower pressure plate and the upper pressure plate close to each other and the inclined surface of the middle pressure plate form a piston ring positioning groove.

[0007] Preferably, the feeding mechanism comprises a fixed plate mounted at the end of the feeding end, the fixed plate is provided with a pneumatic cylinder, the telescopic end of the pneumatic cylinder penetrates through the fixed plate and is provided with a pushing ring block, and the top of the pushing ring block is provided with a placing groove matched with the piston ring.

[0008] Preferably, the feeding mechanism further comprises a fixed seat mounted on the feeding channel, a limiting rod is mounted between the fixed seat and the fixed plate, the limiting rod is located below the output shaft of the pneumatic cylinder, and the pushing ring block is sleeved on the outer wall of the limiting rod and is in sliding connection with the limiting rod.

[0009] Preferably, the thickness of the middle pressure plate is 0.01-0.03 cm higher than the ring height of the piston ring.

[0010] Preferably, the top of the base is provided with a support, the support plate is hingedly connected between the support, the feeding end of the base is provided with a first adjusting screw in threaded connection, and the end of the first adjusting screw is in abutment with the bottom of the support plate.

[0011] Preferably, the first bolt column is symmetrically mounted at the opposite sides of the end of the feeding end of the base, the first bolt column is hung with a tension spring, and the end of the support plate is provided with a second bolt column matched with the tension spring.

[0012] Preferably, the two upper pressure plates are symmetrically provided with ball head plungers, the ball head plungers are arranged at the machining end of the feeding channel, and the ball head plungers penetrate through the inner cavities of the upper pressure plates.

[0013] Preferably, the L-shaped guide rail fixed plate is symmetrically arranged, the horizontal section of the L-shaped guide rail fixed plate is located below, the vertical section of the L-shaped guide rail fixed plate is provided with a first guide rail in the height direction, the first guide rail is in sliding connection with an L-shaped support frame, the horizontal section of the L-shaped support frame is located above, the horizontal section of the L-shaped support frame is provided with a second guide rail in the length direction, the second guide rail is in sliding connection with an adjusting plate between the two groups of second guide rails, the adjusting plate is provided with a third guide rail in the length direction at the top, the third guide rail is in sliding connection with a base, the horizontal section of the L-shaped guide rail fixed plate is provided with a second adjusting screw in threaded connection at the bottom, the end of the second adjusting screw is in abutment with the bottom of the L-shaped support frame, the end of the horizontal section of the L-shaped support frame is provided with a first baffle, the first baffle is rotatably connected with a third adjusting screw, the third adjusting screw is in threaded connection with the adjusting plate, the adjusting plate is provided with a second baffle at the top and located at the end of the third guide rail, the second baffle is rotatably connected with a fourth adjusting screw, and the fourth adjusting screw is in threaded connection with the base.

[0014] The application discloses a chamfering method for the side of the mouth of a piston ring.

[0015] Compared with the prior art, the application has the following beneficial effects:

[0016] The application sets the base, the supporting plate, the feeding mechanism and the positioning pin, and matches the motor and the polishing rod during processing, so that the piston ring can be positioned by the positioning pin and the pressing plate assembly and automatically fed by the feeding mechanism when the side chamfering of the opening part of the piston ring is processed, thereby realizing the standardization and mass production of the side chamfering of the opening part of the piston ring, that is, realizing the precise processing and automation, and improving the processing efficiency and precision of the side chamfering of the opening part of the piston ring. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0018] Figure 1 It is a front view structural schematic diagram of the application;

[0019] Figure 2 It is a side view structural schematic diagram of the application;

[0020] Figure 3 It is an auxiliary view structural schematic diagram of the application;

[0021] Figure 4 It is a partial sectional view structural schematic diagram of Figure 2

[0022] Figure 5 It is a front view structural schematic diagram of the application after installing the support;

[0023] Figure 6 It is a side view structural schematic diagram of the application after installing the support;

[0024] Figure 7 It is an auxiliary view structural schematic diagram of the application after installing the support;

[0025] Figure 8 It is a top view structural schematic diagram of the application during processing.

[0026] In the drawings, the components represented by each number are listed as follows:

[0027] ​1, base; 2, support plate; 3, pressing plate assembly; 31, lower pressing plate; 32, middle pressing plate; 33, upper pressing plate; 4, positioning pin; 5, feeding mechanism; 51, fixed plate; 52, air cylinder; 53, push ring block; 54, fixed seat; 55, limiting rod; 6, support; 7, first adjusting screw; 8, first bolt column; 9, tension spring; 10, second bolt column; 11, ball head plunger; 12, L-shaped guide rail fixed plate; 13, first guide rail; 14, L-shaped support frame; 15, second guide rail; 16, adjusting plate; 17, third guide rail; 18, second adjusting screw; 19, third adjusting screw; 20, fourth adjusting screw. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] Please refer to Figures 1-7 The present application provides a technical solution:

[0030] A piston ring mouth side chamfering equipment, including base 1, the top of base 1 is provided with support plate 2, the opposite sides of the top of support plate 2 are symmetrically provided with pressing plate assembly 3, the spacing between two groups of pressing plate assembly 3 forms a feeding channel, the two ends of the feeding channel are processing end and feeding end respectively, the processing end of the feeding channel is provided with positioning pin 4 matched with the opening of the piston ring, the feeding end of the feeding channel is provided with feeding mechanism 5, and the feeding mechanism 5 is used for conveying the piston ring.

[0031] The pressing plate assembly 3 comprises the lower pressing plate 31, the middle pressing plate 32 and the upper pressing plate 33 which are sequentially stacked, the side face of the two middle pressing plates 32 close to each other is an inclined surface, and the two inclined surfaces are in a shape of converging from the feeding end to the processing end, and the side face of the same side of the lower pressing plate 31 and the upper pressing plate 33 close to each other and the inclined surface of the middle pressing plate 32 form a piston ring positioning groove.

[0032] Specifically, the feeding mechanism 5 comprises a fixed plate 51 installed at the end of the feeding end, the fixed plate 51 is provided with an air cylinder 52, the telescopic end of the air cylinder 52 penetrates through the fixed plate 51 and is provided with a push ring block 53, and the top of the push ring block 53 is provided with a placing groove matched with the piston ring.

[0033] From the above description, it can be known that the piston ring is automatically fed by the reciprocating sliding of the push ring block driven by the air cylinder, and the placing groove on the push ring block can preliminarily position the piston ring.

[0034] Specific, feeding mechanism 5 further comprises a fixed seat 54, fixed seat 54 is installed on the feeding channel, fixed seat 54 and fixed plate 51 between the installation limit rod 55, limit rod 55 below the output shaft of the cylinder 52, push ring block 53 set in the outer wall of the limit rod 55 and with limit rod 55 sliding connection.

[0035] From the above description: by setting the limit rod, so that the push ring block in sliding can be limited by the limit rod, so as to avoid the angle of the push ring block to tilt, make the push more stable.

[0036] Specific, the thickness of the middle plate 32 is the ring height of the piston ring + 0.01cm~0.03cm.

[0037] From the above description: so that the piston ring feeding process can be smoothly into the piston ring positioning groove, avoid the interference between the top of the piston ring and the upper plate, and higher than 0.01cm~0.03cm can be in the piston ring processing, the upper plate can play a limiting role on the piston ring.

[0038] Specific, the top of the base 1 processing end is provided with a support 6, the support plate 2 is hinged between the support 6, the base 1 feeding end is threaded with a first adjusting screw 7, the end of the first adjusting screw 7 and the bottom of the support plate 2 are in contact.

[0039] From the above description: by setting the support and the first adjusting screw, so that by rotating the first adjusting screw can drive the support plate to produce the turnover along the support, so as to fine adjust the inclination angle of the support plate, so that the piston ring can have an inclination angle.

[0040] Specific, the first bolt column 8 is symmetrically installed on the opposite sides of the end of the base 1 feeding end, the first bolt column 8 is hung with a tension spring 9, the end of the support plate 2 is provided with a second bolt column 10 matched with the tension spring 9.

[0041] From the above description, the angle of the support plate is fixed by the tension of the tension spring.

[0042] Specific, two upper plates 33 are symmetrically provided with ball head plunger 11, and the ball head plunger 11 is arranged at the processing end of the feeding channel, and the ball head plunger 11 penetrates the inner cavity of the upper plate 33.

[0043] From the above description: by setting the ball head plunger at the processing end, the processing position of the piston ring can be positioned to ensure that the piston ring is fixed in position each time.

[0044] Specifically, it further comprises two symmetrically arranged L-shaped guide rail fixing plates 12, the horizontal section of the L-shaped guide rail fixing plate 12 is located below, the vertical section of the L-shaped guide rail fixing plate 12 is provided with a first guide rail 13 in the height direction, the L-shaped support frame 14 is slidably connected to the first guide rail 13, the horizontal section of the L-shaped support frame 14 is located above, the horizontal section of the L-shaped support frame 14 is provided with a second guide rail 15 in the length direction, the adjusting plate 16 is slidably connected between the two groups of second guide rails 15, the third guide rail 17 is arranged on the top of the adjusting plate 16 in the length direction, the base 1 is slidably connected to the third guide rail 17, the second adjusting screw 18 is threadedly connected to the bottom of the horizontal section of the L-shaped guide rail fixing plate 12, the end of the second adjusting screw 18 abuts against the bottom of the L-shaped support frame 14, the first baffle is arranged at the end of the horizontal section of the L-shaped support frame 14, the third adjusting screw 19 is rotatably connected to the first baffle, the third adjusting screw 19 is threadedly connected to the adjusting plate 16, the second baffle is arranged on the top of the adjusting plate 16 and located at the end of the third guide rail 17, the fourth adjusting screw 20 is rotatably connected to the second baffle, and the fourth adjusting screw 20 is threadedly connected to the base 1.

[0045] From the above description, it can be known that the first guide rail, the second guide rail and the third guide rail are arranged, so that the position of the support plate can be adjusted before machining, thereby ensuring the machining precision.

[0046] A chamfering method for the side of the mouth of a piston ring is used to chamfer the side of the mouth of the piston ring by using a chamfering device for the side of the mouth of the piston ring.

[0047] Please refer to Figures 1-8 , the embodiment one of the present application is:

[0048] In use, the L-shaped guide rail fixing plate 12 of the machining device is installed on the rack, and the rack is provided with a motor box, the output end of the motor box is connected with a polishing rod, then the first adjusting screw 7, the second adjusting screw 18, the third adjusting screw 19 and the fourth adjusting screw 20 are respectively rotated, so that the position of the positioning pin 4 is adjusted, the positioning pin 4 can be located above the polishing rod and coaxially arranged with the polishing rod (as shown in Figure 8 The adjustment process of each adjusting screw is as follows:

[0049] When the first adjusting screw 7 is rotated, the first adjusting screw 7 slides up and down along the base 1, so as to push the base 1 to produce angular overturning along the support 6, thereby finely adjusting the angle of the base 1 and the positioning pin 4, so that the piston ring can have an inclination angle;

[0050] When the second adjusting screw 18 is rotated, the second adjusting screw 18 slides up and down in the horizontal section of the L-shaped guide rail fixing plate 12, so as to push the L-shaped support frame 14 to slide up and down along the first guide rail 13, thereby adjusting the height of the base 1 and the positioning pin 4;

[0051] When the third adjusting screw 19 rotates, the third adjusting screw 19 is in threaded connection with the adjusting plate 16, so that the rotation of the third adjusting screw 19 drives the adjusting plate 16 to slide along the second guide rail 15, thereby adjusting the front and back positions of the base 1 and the positioning pin 4;

[0052] When the fourth adjusting screw 20 rotates, the fourth adjusting screw 20 is in threaded connection with the base 1, so that the rotation of the fourth adjusting screw 20 drives the base 1 to slide along the third guide rail 17, thereby adjusting the left and right positions of the base 1 and the positioning pin 4;

[0053] After the position of the positioning pin 4 is adjusted, the piston ring to be processed is placed into the placing groove of the ring pushing block 53, and the opening of the piston ring is arranged towards the positioning pin 4, then the air cylinder 52 is started, the air cylinder 52 drives the ring pushing block 53 to slide along the limiting rod 55, thereby pushing the piston ring from the feeding end to the processing end, and in the feeding process, the piston ring is clamped into the piston ring positioning groove formed by the upper pressing plate 33, the lower pressing plate 31 and the middle pressing plate 32, and since the two middle pressing plates 32 are in the shape of a converging opening, the inner wall of the opening of the piston ring is in abutment with the outer wall of the positioning pin 4 when the side wall of the piston ring is in contact with the middle pressing plate 32, and in the pushing process, the front end of the piston ring is in contact with the ball plunger 11, thereby positioning the front end of the piston ring, thereby completing the feeding of the piston ring, and the lower part of the opening of the piston ring on both sides is in contact with the polishing rod;

[0054] Finally, the driving motor in the motor box is started, the driving motor drives the polishing rod to rotate, thereby polishing the opening side of the piston ring to form a chamfer through the polishing rod, and in the polishing process, the upper pressing plate 33 can limit the piston ring to avoid the piston ring from jumping;

[0055] After the polishing is completed, the air cylinder 52 is started, the air cylinder 52 pulls out the ring pushing block 53 and the processed piston ring, then the staff takes down the processed piston ring and places a new piston ring, thereby completing the processing.

[0056] In the embodiment, the adjusting process of the base 1 can be adjusted according to the actual processing condition.

[0057] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and the like is the orientation or positional relationship based on the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0058] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connecting", "fixing", "screwing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited, the person skilled in the art can understand the specific meaning of the above-mentioned terms in the present application according to the specific circumstances.

[0059] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that modifications can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for chamfering the side of a piston ring opening, characterized in that: Includes a base (1), on which a support plate (2) is installed. On the opposite sides of the top of the support plate (2), pressure plate assemblies (3) are symmetrically installed. There is a gap between the two sets of pressure plate assemblies (3) to form a feeding channel. The two ends of the feeding channel are a processing end and a feeding end, respectively. The processing end of the feeding channel is provided with a positioning pin (4) that cooperates with the piston ring opening. The feeding end of the feeding channel is equipped with a feeding mechanism (5), which is used to transport the piston ring. The pressure plate assembly (3) includes a lower pressure plate (31), a middle pressure plate (32) and an upper pressure plate (33) stacked in sequence. The side of the two middle pressure plates (32) that are close to each other is an inclined surface, and the two inclined surfaces are in a constricted shape from the feeding end direction to the processing end direction. A piston ring positioning groove is formed between the side of the lower pressure plate (31) and the upper pressure plate (33) that are close to each other on the same side and the inclined surface of the middle pressure plate (32). The feeding mechanism (5) includes a fixed plate (51) installed at the end of the feeding end. A cylinder (52) is installed on the fixed plate (51). The telescopic end of the cylinder (52) passes through the fixed plate (51) and is equipped with a push ring block (53). The top of the push ring block (53) is provided with a placement groove that cooperates with the piston ring. The feeding mechanism (5) also includes a fixed seat (54), which is installed on the feeding channel. A limit rod (55) is installed between the fixed seat (54) and the fixed plate (51). The limit rod (55) is located below the output shaft of the cylinder (52). The push ring block (53) is sleeved on the outer wall of the limit rod (55) and slidably connected to the limit rod (55). The thickness of the intermediate pressure plate (32) is the ring height of the piston ring + 0.01cm to 0.03cm.

2. The piston ring mouth side chamfering device according to claim 1, characterized in that: The base (1) has a support (6) at the top processing end. The support plate (2) is hinged to the support (6). The base (1) has a first adjusting screw (7) threaded through the feeding end. The end of the first adjusting screw (7) abuts against the bottom of the support plate (2).

3. The piston ring orifice side chamfering device according to claim 2, characterized in that: The base (1) has first bolt posts (8) symmetrically installed on opposite sides of the feeding end, and tension springs (9) are hung on the first bolt posts (8). The end of the support plate (2) is provided with second bolt posts (10) that cooperate with the tension springs (9).

4. The piston ring mouth side chamfering device according to claim 1, characterized in that: Two upper pressure plates (33) are symmetrically provided with ball-head plungers (11), and the ball-head plungers (11) are located at the processing end of the feeding channel, and the ball-head plungers (11) penetrate the inner cavity of the upper pressure plate (33).

5. A piston ring mouth side chamfering device according to claim 1, characterized in that: It also includes two symmetrically arranged L-shaped guide rail fixing plates (12), with the horizontal section of the L-shaped guide rail fixing plate (12) located at the bottom. The vertical section of the L-shaped guide rail fixing plate (12) is equipped with a first guide rail (13) along the height direction. The first guide rail (13) is slidably connected to an L-shaped support frame (14), with the horizontal section of the L-shaped support frame (14) located at the top. The horizontal section of the L-shaped support frame (14) is equipped with a second guide rail (15) along the length direction. An adjusting plate (16) is slidably connected between the two sets of second guide rails (15). A third guide rail (17) is installed on the top of the adjusting plate (16) along the length direction. The third guide rail (17) is slidably connected to... The base (1) is attached. The bottom of the horizontal section of the L-shaped guide rail fixing plate (12) is threaded with a second adjusting screw (18). The end of the second adjusting screw (18) abuts against the bottom of the L-shaped support frame (14). The end of the horizontal section of the L-shaped support frame (14) is provided with a first baffle. The first baffle is rotatably connected with a third adjusting screw (19). The third adjusting screw (19) is threadedly connected to an adjusting plate (16). The top of the adjusting plate (16) is equipped with a second baffle and is located at the end of the third guide rail (17). The second baffle is rotatably connected with a fourth adjusting screw (20). The fourth adjusting screw (20) is threadedly connected to the base (1).

6. A method for chamfering the side surface of a piston ring orifice, characterized in that: The chamfering process is performed using the chamfering device for the side of the piston ring opening as described in any one of claims 1-5.

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