Piston surface ring groove waviness detection and adjustment equipment

Abstract

The invention discloses a piston surface ring groove waviness detection and adjustment device, which relates to the technical field of piston head production and comprises a bottom plate, a detection piston is fixedly arranged on the top surface of the bottom plate, clamp structures are arranged on two sides of the detection piston, and a gland structure is arranged right above the detection piston. By arranging the detection piston and the gland structure, when the gland structure presses and fixes the detection piston, the transmission motor can drive the transmission plate and the detection structure to detect the waviness in a piston ring groove in the surface of the detection piston; in the rotating process of a detection probe of the detection shell, the detection probe is in close contact with the interior of a piston ring groove under the acting force of an extrusion spring; when the piston ring groove rotates, the detection probe displaces due to fluctuation in the rotating process, so that the relative distance between the connected position sensor and the communication equipment is changed, real-time acquisition and recording are carried out and transmitted to an external detection computer to draw a waviness image, and thus the waviness in the piston ring groove is judged.

Description

Technical Field

[0001] The invention relates to the technical field of piston head production, and in particular to a piston ring groove waviness detection and adjustment device. Background Art

[0002] The piston inside the engine is a key component of the engine. During the production process, a ring groove is opened on the surface of the piston. The piston ring is constrained by the ring groove to keep its position stable during the movement of the piston and will not move or fall off at will. A tight seal is formed between the piston ring and the cylinder wall to prevent the high-pressure gas in the cylinder from leaking into the crankcase, and also to prevent the oil in the crankcase from entering the combustion chamber. This sealing function is the basis for the normal operation of the engine. Through effective sealing, the piston ring can ensure that the mixed gas in the combustion chamber is fully burned, improve the combustion efficiency of the engine, and thus increase power output.

[0003] During the production process of the piston, since the ring groove on the surface needs to play a sealing and fixing role, there are high requirements for the corrugation of the inner surface of the ring groove. During the processing, the corrugation of the piston ring groove is usually detected. The corrugation detection is generally carried out by a specific detection device, such as a ring-type part corrugation detection method and device with a publication number of CN 117160912 A, comprising: a housing, a bottom plate fixedly installed at the bottom of the housing, and two symmetrically arranged first door panels hinged at the front of the housing, and a ring-type part conveying mechanism is installed on the upper part of the bottom plate inside the housing.

[0004] After this type of waviness detection device detects the waviness of the surface, there is no corresponding correction structure to correct the waviness. At the same time, the specific method of waviness detection during the waviness detection of the annular part is not disclosed, and how to obtain the waviness image of the part surface through the PLC detection head. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the corrugation detection device of the above-mentioned background technology has no corresponding correction structure for correction and how to draw the corrugation image is not disclosed, and to propose a piston surface ring groove corrugation detection and adjustment device.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A piston surface ring groove waviness detection and adjustment device, comprising:

[0008] The bottom plate has a top surface fixedly connected to a placement table, a detection piston is positioned and placed on the top surface of the placement table, and an annular piston ring groove is provided on the surface of the detection piston;

[0009] A clamp structure is located above the bottom plate, the clamping plates of the clamp structure are in contact with the surfaces on both sides of the detection piston, and the bottom surfaces of the clamping plates on both sides are provided with clearance grooves, and the clearance grooves are detachably provided with filling plates;

[0010] The gland body is located directly above the detection piston. The gland body is connected to an external driving device. A transmission plate is rotatably connected to the side circumferential surface of the gland body. A detection structure is connected to a side of the transmission plate close to the detection piston. The detection structure includes:

[0011] A detection housing is fixedly connected to the transmission plate, and a detection probe is movably connected to one end of the detection housing close to the piston ring groove;

[0012] The position sensor is fixedly connected to the detection probe, and a communication device is arranged inside the detection shell. The communication device, the position sensor and the external detection computer are communicatively connected.

[0013] As a further solution of the present invention: setting plates are fixedly connected to both sides of the top surface of the bottom plate, and the top surfaces of the setting plates on both sides are connected to the clamp structure.

[0014] As a further solution of the present invention: the connecting plate of the clamp structure is fixedly connected to the top surface of the setting plate, and transmission screws are rotatably threaded in the connecting plates on both sides; the ends of the transmission screws on both sides that are close to each other are rotatably connected to the clamping plate.

[0015] As a further solution of the present invention: two limit columns are arranged on one side of the clamping plate where the transmission screw is arranged, and the limit columns are slidably connected to the connection plate.

[0016] As a further solution of the present invention: the circumferential side surface of the gland body is rotatably connected with a transmission gear ring, and the inner ring of the transmission gear ring is provided with a plurality of meshing teeth; the interior of the gland body is rotatably connected with a transmission gear, and the transmission gear is meshingly connected with the meshing teeth of the transmission gear ring.

[0017] As a further solution of the present invention: the shape of the clamping plate is an arc shape, and the shape of the clearance groove provided on the top surface of the clamping plate is an arc shape with the same curvature.

[0018] As a further solution of the present invention, a side of the positioning groove close to the detection piston extends to the surface of the clamping plate.

[0019] As a further solution of the present invention: handles are fixedly connected to the side surfaces of the filling panels on both sides.

[0020] As a further solution of the present invention: a mounting limit block is fixedly connected to one side of the position sensor, the mounting limit block is slidably connected in the detection shell, and a compression spring is fixedly connected between the mounting limit block and the communication device.

[0021] Beneficial effects of the present invention:

[0022] (1) A piston surface ring groove waviness detection and adjustment device of the present invention is provided with a detection piston and a pressure cover structure. When the pressure cover structure presses and fixes the detection piston, the output end of the transmission motor can drive the transmission gear ring to rotate, and the transmission gear ring drives the transmission plate and the detection structure to detect the waviness in the piston ring groove on the detection piston surface; during the rotation of the detection probe of the detection housing, the detection probe is subjected to the force of the extrusion spring and is in close contact with the piston ring groove; the fluctuations occurring during the rotation process will cause the detection probe to be displaced, so that the relative distance between the connected position sensor and the communication device changes, and the real-time data is collected and recorded and transmitted to an external detection computer to draw a waviness image, thereby determining the waviness inside the piston ring groove;

[0023] (2) A piston surface ring groove corrugation detection and adjustment device of the present invention is provided with a clamp structure. The arc-shaped clamping plates on both sides of the clamp structure clamp and fix the side surfaces of the detection piston. The top surfaces of the clamping plates on both sides are provided with clearance grooves, so that the corrugation of the detection piston can be detected while being fixed. The transmission plate drives the detection structure to pass smoothly through the clearance groove, thereby making the detection process continuous. When it is necessary to subsequently apply pressure to adjust the corrugation, the transmission plate and the detection structure are rotated out of the clearance groove, and then a filling plate is arranged in the clearance groove to increase the contact area of ​​the clamping plate on the detection piston, so as to facilitate changing the corrugation of the detection piston surface during clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] Figure 1 It is a structural schematic diagram of a piston surface ring groove waviness detection and adjustment device during the detection process of the present invention;

[0026] Figure 2 It is a structural schematic diagram of a piston surface ring groove waviness detection and adjustment device during adjustment of the present invention;

[0027] Figure 3 It is a front structural schematic diagram of a piston surface ring groove waviness detection and adjustment device of the present invention;

[0028] Figure 4 It is a schematic diagram of the internal structure of the gland body of the present invention;

[0029] Figure 5 It is a schematic diagram of the internal structure of the detection structure of the present invention.

[0030] In the figure: 1. bottom plate; 11. setting plate; 12. placing table; 2. fixture structure; 21. connecting plate; 22. transmission screw; 23. rotating handle; 24. limiting column; 25. clamping plate; 26. clearance groove; 27. filling plate; 28. handle; 3. detection piston; 31. piston ring groove; 4. gland structure; 41. gland body; 42. rotating gear ring; 43. transmission motor; 44. transmission gear; 45. transmission plate; 5. detection structure; 51. detection shell; 52. detection probe; 53. position sensor; 54. installation limit block; 55. extrusion spring; 56. communication equipment. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-5 As shown, the present invention is a piston surface ring groove corrugation detection and adjustment device, comprising a bottom plate 1, and setting plates 11 are fixedly connected to both sides of the top surface of the bottom plate 1, and the setting plates 11 on both sides are set in the vertical direction. A placement table 12 is fixedly connected to the center of the top surface of the bottom plate 1, and the placement table 12 is located between the setting plates 11 on both sides. A clamp structure 2 is provided on the top surface of the setting plates 11 on both sides, and two connecting plates 21 of the clamp structure 2 are respectively fixedly connected to the top surface of the placement plate, and the connecting plates 21 on both sides are set in the vertical direction. A transmission screw 22 is rotatably provided at the center of each connecting plate 21, and the external thread on the surface of the transmission screw 22 is threadedly connected to the connecting plate 21, and the outer ends of the two transmission screws 22 are fixedly connected to the rotating handle 23. A circular arc-shaped clamping plate 25 is provided at one end of the transmission screws 22 on both sides that are close to each other, and the transmission screw 22 and the clamping plate 25 are rotatably connected. The clamping plate 25 is provided with a transmission screw 22 on one side and fixedly connected to the limiting columns 24 on both sides. The limiting columns 24 are arranged in the horizontal direction. The limiting columns 24 pass through the connecting plate 21 so that the limiting columns 24 can be slidably limited in the connecting plate 21. The detection piston 3 is placed on the top surface of the placement table 12, and the shape of the arc-shaped clamping plate 25 is adapted to the surface shape of the detection piston 3. The top surfaces of the two clamping plates 25 are provided with arc-shaped clearance grooves 26, which extend to the side of the clamping plate 25 close to the detection piston 3. A circular arc-shaped filling plate 27 is detachably arranged inside the clearance groove 26, and a handle 28 is fixedly connected to the side surface of the filling plate 27.

[0033] A gland structure 4 is arranged above the detection piston 3. A gland body 41 of the gland structure 4 is fixedly connected to an external driving device. The gland body 41 is located directly above the detection piston 3. The gland body 41 and the central rotation axis of the detection piston 3 are located on the same vertical line. A rotating gear ring 42 is rotatably connected to the side circumferential surface of the gland body 41. The inner ring of the transmission gear ring is provided with meshing teeth. A transmission motor 43 is arranged on the top surface of the gland body 41. The output end of the transmission motor 43 is arranged vertically downward. The output end of the transmission motor 43 extends into the internal installation cavity of the gland body 41. The output end of the transmission motor 43 is coaxially fixedly connected to a transmission gear 44. The transmission gear 44 is meshed with the meshing teeth of the inner ring of the transmission gear ring. A transmission plate 45 is fixedly connected to the circumferential outer surface of the transmission gear ring. The transmission plate 45 is arranged along the vertical direction. The bottom end of the transmission plate 45 can extend into the clearance groove 26. A piston ring groove 31 is provided on the surface of the detection piston 3. A detection structure 5 is provided on one side of the transmission plate 45 close to the piston ring groove 31. The detection structure 5 includes a detection housing 51, and the detection housing 51 is fixedly connected to one side of the transmission plate 45 close to the piston ring groove 31. The detection housing 51 is arranged along the horizontal plane direction, and a detection probe 52 is slidably provided on one end of the detection housing 51 away from the transmission plate 45. The detection probe 52 is movably connected to one end of the detection housing 51, and a position sensor 53 is fixedly connected to one end of the detection probe 52 located in the detection housing 51. A mounting limit block 54 is fixedly connected to one side of the position sensor 53 away from the detection probe 52, and the mounting limit block 54 is slidably connected in the detection housing 51. A communication device is provided inside the detection housing 51, and the communication device is connected to an external detection remote computer for communication. The communication device is connected to the position sensor 53 for communication. An extrusion spring 55 is fixedly connected between the communication device and the mounting limit block 54.

[0034] When using this piston surface ring groove corrugation detection and adjustment equipment, the detection piston 3 to be detected is placed on the top surface of the placement table 12 for positioning. Then, the sides of the detection piston 3 are clamped and fixed by the clamp structures 2 on both sides. By rotating the rotating handle 23, the rotating handle 23 drives the transmission screw 22 to rotate, and the transmission screw 22 and the clamping plate 25 rotate relative to each other. The clamping plate 25 is limited by the limiting column 24 connected to the surface, so that the clamping plates 25 on both sides are close to the sides of the detection piston 3 until the clamping plates 25 contact the sides of the detection piston 3 for clamping and fixing. When the clamping is completed, the filling plate 27 is removed from the clearance groove 26 by the handle 28 to prevent the upper transmission plate 45 and the detection equipment from affecting the position of the clamping plate 25. After the surface of the clamping plate 25 contacts the detection piston 3. By starting the transmission motor 43, the output end of the transmission motor 43 drives the transmission gear 44 to rotate, and the transmission gear ring engaged with the transmission gear 44 rotates, and the transmission plate 45 on the surface is driven to move when the transmission gear ring rotates. The external driving device drives the gland body 41 to press and fix the top surface of the detection piston 3, and at this time, the detection device on one side of the transmission plate 45 is moved to the horizontal plane position of the piston ring groove 31. Then, the detection probe 52 in the detection housing 51 is extended into the piston ring groove 31 by the force of the extrusion spring 55, and the output end of the upper transmission motor 43 drives the transmission gear 44 to rotate, and the transmission gear ring engaged with the transmission gear 44 drives the transmission plate 45 and the detection device to rotate around the vertical rotation axis of the detection piston 3, so that one end of the detection probe 52 contacts the surface of the piston ring groove 31 while rotating. The waviness generated on the undulating surface of the piston ring groove 31 drives the detection probe 52 to displace during the rotation process, and when the detection probe 52 is displaced, it drives the distance between the position sensor 53 and the communication device to collect, so that the collected distance data is transmitted to the external detection computer through the communication device to complete the curve drawing. After the transmission motor 43 drives the transmission plate 45 and the detection structure 5 to rotate one circle, the detection computer draws a drawing image about the rotation angle and corrugation of the transmission plate 45, so that it can judge how to adjust the detection piston 3 according to the corrugation image. When the detection result is M-type, that is, the corrugation of the clamp structures 2 on both sides is more prominent, and the corrugation at the front and rear windows of the piston ring groove 31 is concave. The transmission plate 45 and the detection structure 5 are rotated out of the clearance groove 26, and then arc-shaped filling plates 27 are placed in the clearance grooves 26 on both sides, so as to increase the contact area between the arc-shaped clamping plate 25 and the detection piston 3. The rotating handle 23 is further rotated to drive the clamping plate 25 to clamp and contact the surface of the detection piston 3, so as to correct its protruding surface. When the detection result is W-type, that is, the corrugation of the clamp structures 2 on both sides is more concave, and the corrugation at the front and rear windows of the piston ring groove 31 is prominent. The cover body 41 is driven downward by an external driving device, and during the pressing process of the cover body 41 , the pressure on the front and rear window sides increases, thereby correcting the protruding surface.

[0035] Working principle of the present invention: A piston surface ring groove corrugation detection and adjustment device of the present invention is provided with a detection piston 3 and a pressure cover structure 4. When the pressure cover structure 4 presses and fixes the detection piston 3, the output end of the transmission motor 43 can drive the transmission gear ring to rotate, and the transmission gear ring drives the transmission plate 45 and the detection structure 5 to detect the corrugation in the piston ring groove 31 on the surface of the detection piston 3; during the rotation of the detection probe 52 of the detection housing 51, the detection probe 52 is subjected to the force of the extrusion spring 55 and is in close contact with the piston ring groove 31; the fluctuations occurring during the rotation process will cause the detection probe 52 to be displaced, so that the relative distance between the connected position sensor 53 and the communication device changes and collects and records the data in real time and transmits it to the external detection device. A corrugation image is drawn in the measuring computer, thereby determining the corrugation inside the piston ring groove 31; by setting up a clamp structure 2, arc-shaped clamping plates 25 on both sides of the clamp structure 2 clamp and fix the side surfaces of the detection piston 3, and the top surfaces of the clamping plates 25 on both sides are provided with clearance grooves 26, so that the corrugation of the detection piston 3 can be detected while being fixed, and the transmission plate 45 drives the detection structure 5 to pass smoothly through the clearance groove 26, so that the detection process is continuous; when it is necessary to subsequently apply pressure to adjust the corrugation, the transmission plate 45 and the detection structure 5 are rotated out of the clearance groove 26, and then a filling plate 27 is set in the clearance groove 26 to increase the contact area of ​​the clamping plate 25 on the detection piston 3, so as to facilitate the change of the corrugation of the surface of the detection piston 3 during clamping.

[0036] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A piston surface ring groove corrugation detection and adjustment device, characterized in that: include: The bottom plate (1) has a top surface fixedly connected to a placement platform (12), a detection piston (3) is positioned and placed on the top surface of the placement platform (12), and a ring-shaped piston ring groove (31) is formed on the surface of the detection piston (3); A clamp structure (2) is located above the bottom plate (1), the clamping plates (25) of the clamp structure (2) are in contact with the surfaces of both sides of the detection piston (3), the bottom surfaces of the clamping plates (25) on both sides are provided with clearance grooves (26), and the clearance grooves (26) are detachably provided with filling plates (27); The gland body (41) is located directly above the detection piston (3). The gland body (41) is connected to an external driving device. A transmission plate (45) is rotatably connected to a side circumferential surface of the gland body (41). A detection structure (5) is connected to a side of the transmission plate (45) close to the detection piston (3). The detection structure (5) comprises: A detection housing (51) is fixedly connected to the transmission plate (45), and a detection probe (52) is movably connected to one end of the detection housing (51) close to the piston ring groove (31); The position sensor (53) is fixedly connected to the detection probe (52). A communication device is arranged inside the detection housing (51). The communication device and the position sensor (53) are connected in communication with an external detection computer.

2. A piston surface ring groove waviness detection and adjustment device according to claim 1, characterized in that: Setting plates (11) are fixedly connected to both sides of the top surface of the bottom plate (1), and the top surfaces of the setting plates (11) on both sides are connected to the clamp structure (2).

3. A piston surface ring groove waviness detection and adjustment device according to claim 2, characterized in that: The connecting plate (21) of the clamp structure (2) is fixedly connected to the top surface of the setting plate (11), and transmission screws (22) are rotatably threaded in the connecting plates (21) on both sides; and the ends of the transmission screws (22) on both sides that are close to each other are rotatably connected to the clamping plate (25).

4. A piston surface ring groove waviness detection and adjustment device according to claim 3, characterized in that: Two limiting columns (24) are arranged on one side of the clamping plate (25) where the transmission screw rod (22) is arranged. The limiting columns (24) are slidably connected to the connection plate (21) in a limiting manner.

5. The piston surface ring groove waviness detection and adjustment device according to claim 1 is characterized in that: The circumferential side surface of the gland body (41) is rotatably connected to a transmission gear ring, and the inner ring of the transmission gear ring is provided with a plurality of meshing teeth; the interior of the gland body (41) is rotatably connected to a transmission gear (44), and the transmission gear (44) is meshingly connected with the meshing teeth of the transmission gear ring.

6. The piston surface ring groove waviness detection and adjustment device according to claim 1 is characterized in that: The shape of the clamping plate (25) is an arc shape, and the shape of the clearance groove (26) provided on the top surface of the clamping plate (25) is an arc shape with the same curvature.

7. The piston surface ring groove waviness detection and adjustment device according to claim 6 is characterized in that: The side of the clearance groove (26) close to the detection piston (3) extends to the surface of the clamping plate (25).

8. According to the piston surface ring groove waviness detection and adjustment device as described in claim 1, handles (28) are fixedly connected to the side surfaces of the filling plates (27) on both sides.

9. According to a piston surface ring groove corrugation detection and adjustment device as described in claim 1, a mounting limit block (54) is fixedly connected to one side of the position sensor (53), the mounting limit block (54) is slidably connected in the detection shell (51), and an extrusion spring (55) is fixedly connected between the mounting limit block (54) and the communication device.

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