Cylinder cover valve seat ring laser strengthening device

Abstract

The utility model relates to a cylinder cover valve seat ring laser strengthening device which comprises a bottom table, an annular sliding groove is formed in the upper end of the bottom table, a fixing rod is arranged at the circle center of the annular sliding groove, two adjusting rotating discs are arranged on the outer wall of the fixing rod in a sleeved mode, and connecting rods are arranged on the peripheral sides of the adjusting rotating discs. A pressure rod is arranged at the end, away from the adjusting rotary disc, of the connecting rod. The utility model relates to the technical field of laser quenching equipment. According to the cylinder cover valve seat ring laser strengthening device, the outer surface of the fixing rod is sleeved with the valve seat ring, the two pressure rods are located on the outer side of the valve seat ring, the positions of the pressure rods are adjusted by adjusting rotation of the rotating disc and being matched with the connecting rod, the two pressure rods are both pressed on the outer surface of the valve seat ring, and the effect of clamping the valve seat ring is achieved; and meanwhile, the outer surface of the valve seat ring is heated through laser emitted by the lifting probe, and the effect of strengthening the strength of the valve seat ring is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of laser quenching equipment, in particular to a laser strengthening device for a cylinder head valve seat ring. Background Art

[0002] The part on the cylinder head that fits the valve cone surface is called the valve seat.

[0003] The valve seat has a very high temperature and is subjected to extremely high-frequency impact loads, making it prone to wear.

[0004] Therefore, aluminum cylinder heads and most cast iron cylinder heads are inlaid with valve seat inserts made of alloy cast iron or powder metallurgy or austenitic steel.

[0005] The valve seat insert is usually a replaceable valve seat installed on the cylinder block of a side-valve engine and on the cylinder head or headless engine block of an overhead valve engine.

[0006] In the prior art, since the valve seat ring is generally annular and the diameters of valve seat rings of different models are also different, when the valve seat ring is laser quenched and strengthened, it is generally necessary to fix the valve seat ring with a clamp. However, the clamping teeth of the clamp can easily block the valve seat ring, which can easily lead to uneven strengthening of the valve seat ring. Utility Model Content

[0007] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a cylinder head valve seat ring laser strengthening device so as to solve the technical problems mentioned in the above background technology.

[0008] The above technical objectives of the utility model are achieved through the following technical solutions:

[0009] A cylinder head valve seat ring laser strengthening device comprises a bottom platform, an annular groove is formed at the upper end of the bottom platform, a fixing rod is arranged at the center of the annular groove, two adjusting dials are sleeved on the outer wall of the fixing rod, a connecting rod is arranged on the outer peripheral side of the adjusting dial, a pressure rod is arranged on the end of the connecting rod away from the adjusting dial, a rotating shaft is arranged inside the annular groove, a bevel gear ring is arranged on the adjacent ends of the two adjusting dials, a mounting plate is arranged on the upper end of the bottom platform, an adjusting gear is rotatably mounted on one side of the mounting plate, and the adjusting gear is meshed with the two bevel gear rings, and a lifting probe is arranged on the top end of the fixing rod.

[0010] Furthermore, a positioning rod is fixedly connected to the bottom end of the pressure rod, the positioning rod is inserted into the interior of the annular slide groove, and the positioning rod is slidably connected to the side wall of the annular slide groove.

[0011] Furthermore, the lifting probe includes a hexagonal lifting rod, which is inserted into the interior of the fixed rod. A guide groove is provided on one side of the hexagonal lifting rod, and a thread groove is provided on the inner groove wall of the guide groove. A guide screw threadedly connected to the thread groove is provided inside the guide groove, and the guide screw is rotatably connected to the fixed rod. A laser transmitter is provided at one end of the hexagonal lifting rod facing the fixed rod.

[0012] Furthermore, a driving motor is provided at the bottom end of the fixing rod, and curved grooves distributed in a ring array are provided at the upper end of the circumferential side of the fixing rod.

[0013] Furthermore, an adjusting shaft is arranged inside the adjusting gear, a supporting plate is rotatably arranged at one end of the adjusting shaft, and the bottom end of the supporting plate is fixedly connected to the bottom platform.

[0014] Furthermore, the upper ends of the pressure rods are sleeved with rotating rings, and the outer wall surfaces of the rotating rings are provided with evenly distributed vertical grooves.

[0015] In summary, the present invention includes at least one of the following beneficial technical effects:

[0016] 1. A cylinder head valve seat ring laser strengthening device, the valve seat ring is sleeved on the outer surface of the rotating shaft, and two pressure rods are located on the outer side of the valve seat ring. By adjusting the rotation of the turntable, the connecting rod is coordinated to adjust the position of the pressure rods, so that the two pressure rods are pressed on the outer surface of the valve seat ring to achieve the effect of clamping the valve seat ring. At the same time, the outer surface of the valve seat ring is heated by the laser emitted by the lifting probe to achieve the effect of strengthening the strength of the valve seat ring;

[0017] 2. This cylinder head valve seat ring laser strengthening device achieves the purpose of enabling the valve seat ring to rotate in a clamped state by rotating the rotating shaft, thereby making different positions on the outer circumference of the valve seat ring correspond to the laser emitting points of the lifting probe, thereby achieving the effect of improving the uniformity of the laser strengthening of the valve seat ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 A schematic diagram of the structure of a cylinder head valve seat ring laser strengthening device with a valve seat ring installed in the utility model Figure 1 .

[0020] Figure 2 A schematic diagram of the structure of a cylinder head valve seat ring laser strengthening device with a valve seat ring installed in the utility model Figure 2 .

[0021] Figure 3 The utility model is a schematic structural diagram of an adjustment turntable of a cylinder head valve seat ring laser strengthening device.

[0022] Figure 4 The utility model is a structural schematic diagram of a hexagonal lifting rod of a cylinder head valve seat ring laser strengthening device.

[0023] In the figure, 1. bottom platform; 2. annular slide; 3. fixing rod; 4. adjusting turntable; 5. connecting rod; 6. pressure rod; 61. rotating ring; 7. rotating shaft; 8. bevel gear ring; 9. mounting plate; 10. adjusting gear; 101. adjusting shaft; 102. supporting plate; 11. lifting probe; 111. hexagonal lifting rod; 112. guide groove; 113. threaded groove; 114. guide screw; 115. laser transmitter; 12. positioning rod. DETAILED DESCRIPTION

[0024] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0025] Example:

[0026] Reference Figure 1-Figure 4 The utility model discloses a cylinder head valve seat ring laser strengthening device, comprising a bottom platform 1, an annular groove 2 is opened at the upper end of the bottom platform 1, a fixing rod 3 is arranged at the center of the annular groove 2, two adjusting dials 4 are sleeved on the outer wall of the fixing rod 3, a connecting rod 5 is arranged on the outer peripheral side of the adjusting dial 4, a pressure rod 6 is arranged on the end of the connecting rod 5 away from the adjusting dial 4, a rotating shaft 7 is arranged inside the annular groove 2, a bevel gear ring 8 is arranged on the adjacent ends of the two adjusting dials 4, a mounting plate 9 is arranged on the upper end of the bottom platform 1, an adjusting gear 10 is rotatably installed on one side of the mounting plate 9, and the adjusting gear 10 is meshed with the two bevel gear rings 8, and a lifting probe 11 is arranged on the top of the fixing rod 3.

[0027] In this embodiment, when in use, the valve seat ring is placed on the upper end of the bottom platform 1, and the valve seat ring is sleeved on the outer surface of the rotating shaft 7, and the two pressure rods 6 are located on the outer side of the valve seat ring. By adjusting the rotation of the turntable 4, the connecting rod 5 is coordinated to adjust the position of the pressure rods 6, so that the two pressure rods 6 are pressed on the outer surface of the valve seat ring, so that the inner ring wall of the valve seat ring is tightly attached to the rotating shaft 7, so as to achieve the effect of clamping the valve seat ring. At the same time, the outer surface of the valve seat ring is heated by the laser emitted by the lifting probe 11, so as to achieve the effect of strengthening the strength of the valve seat ring.

[0028] By rotating the adjusting gear 10, the two bevel gear rings 8 are rotated in opposite directions, thereby achieving the effect of controlling the opening and closing of the two pressure rods 6, so that the device can fix valve seat rings of different diameters and widths, effectively improving the practicality of the device;

[0029] After the valve seat ring is fixed, the rotating shaft 7 is rotated to enable the valve seat ring to rotate in the clamped state, so that different positions of the valve seat ring correspond to the laser emission points of the lifting probe 11, so that the valve seat ring is strengthened more evenly.

[0030] In a further preferred embodiment of the present invention, Figure 1-4 As shown, a positioning rod 12 is fixedly connected to the bottom end of the pressure rod 6 , the positioning rod 12 is inserted into the inside of the annular slide groove 2 , and the positioning rod 12 is slidably connected to the side wall of the annular slide groove 2 .

[0031] In this embodiment, the positioning rod 12 is provided in cooperation with the annular slide groove 2 to guide the moving direction of the pressure rod 6, thereby achieving the effect of improving the stability of the pressure rod 6 when moving.

[0032] In a further preferred embodiment of the present invention, Figure 1-4 As shown, the lifting probe 11 includes a hexagonal lifting rod 111, which is inserted into the interior of the fixed rod 3. A guide groove 112 is provided on one side of the hexagonal lifting rod 111, and a thread groove 113 is provided on the inner groove wall of the guide groove 112. A guide screw 114 threadedly connected to the thread groove 113 is provided inside the guide groove 112, and the guide screw 114 is rotatably connected to the fixed rod 3. A laser transmitter 115 is provided at one end of the hexagonal lifting rod 111 facing the fixed rod 3.

[0033] In this embodiment, by means of the threaded cooperation between the guide screw 114 and the thread groove 113, the lifting and lowering of the hexagonal lifting rod 111 can be effectively controlled during the rotation of the guide screw 114, so that the height of the laser transmitting head 115 can be adjusted, so as to achieve the purpose of making the laser transmitting head 115 flush with the outer surface of the valve seat ring, thereby achieving the purpose of improving the efficiency of laser strengthening.

[0034] In a further preferred embodiment of the present invention, Figure 1-4 As shown, a driving motor is disposed at the bottom end of the rotating shaft 7, and curved grooves distributed in a ring array are disposed at the upper end of the circumferential side of the rotating shaft 7.

[0035] In this embodiment, a driving motor is used to control the rotation of the rotating shaft 7, thereby driving the valve seat ring to rotate, so that the laser emission head 115 can correspond to any position on the outer circumference of the valve seat ring, thereby achieving the effect of improving the uniformity of laser strengthening. The setting of the curved groove is used to increase the friction between the rotating shaft 7 and the valve seat ring, so that the rotating shaft 7 rotates to drive the valve seat ring to rotate.

[0036] In a further preferred embodiment of the present invention, Figure 1-4 As shown, an adjusting shaft 101 is disposed inside the adjusting gear 10 , a supporting plate 102 is rotatably disposed at one end of the adjusting shaft 101 , and a bottom end of the supporting plate 102 is fixedly connected to the bottom platform 1 .

[0037] In this embodiment, the adjustment shaft 101 is provided to facilitate the adjustment of the adjustment gear 10 , and the support plate 102 is provided to improve the rotation stability of the adjustment shaft 101 .

[0038] In a further preferred embodiment of the present invention, Figure 1-4 As shown, the upper end of the pressure rod 6 is sleeved with a rotating ring 61, and the outer wall surface of the rotating ring 61 is provided with evenly distributed vertical grooves.

[0039] In this embodiment, the friction between the valve seat ring and the pressure rod 6 during rotation is reduced by the provision of the rotating ring 61, and the friction between the rotating ring 61 and the valve seat ring is increased by the provision of the vertical groove, so that the valve seat ring can drive the rotating ring 61 to rotate during the rotation process, thereby preventing the valve seat ring from being scratched due to static friction.

[0040] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A cylinder head valve seat ring laser strengthening device, comprising a bottom table (1), characterized in that: An annular groove (2) is provided at the upper end of the bottom platform (1), a fixed rod (3) is arranged at the center of the annular groove (2), two adjusting dials (4) are sleeved on the outer wall of the fixed rod (3), a connecting rod (5) is arranged on the outer peripheral side of the adjusting dial (4), a pressure rod (6) is arranged at the end of the connecting rod (5) away from the adjusting dial (4), a rotating shaft (7) is arranged inside the annular groove (2), and a bevel gear ring (8) is arranged at the adjacent ends of the two adjusting dials (4), a mounting plate (9) is arranged at the upper end of the bottom platform (1), an adjusting gear (10) is rotatably mounted on one side of the mounting plate (9), and the adjusting gear (10) is meshed with the two bevel gear rings (8), and a lifting probe (11) is arranged at the top end of the fixed rod (3).

2. The cylinder head valve seat ring laser strengthening device according to claim 1, characterized in that: The bottom end of the pressure rod (6) is fixedly connected with a positioning rod (12), the positioning rod (12) is inserted into the inside of the annular slide groove (2), and the positioning rod (12) is slidably connected to the side wall of the annular slide groove.

3. The cylinder head valve seat ring laser strengthening device according to claim 2, characterized in that: The lifting probe (11) comprises a hexagonal lifting rod (111), the hexagonal lifting rod (111) is inserted into the interior of the fixed rod (3), a guide groove (112) is provided on one side of the hexagonal lifting rod (111), a thread groove (113) is provided on the inner groove wall of the guide groove (112), a guide screw (114) threadedly connected to the thread groove (113) is provided inside the guide groove (112), and the guide screw (114) is rotatably connected to the fixed rod (3), and a laser emitting head (115) is provided at one end of the hexagonal lifting rod (111) facing the fixed rod (3).

4. The cylinder head valve seat laser strengthening device according to claim 3, characterized in that: A driving motor is arranged at the bottom end of the rotating shaft (7), and curved grooves distributed in a ring array are arranged at the upper end of the circumferential side of the rotating shaft (7).

5. The cylinder head valve seat ring laser strengthening device according to claim 4, characterized in that: An adjusting shaft (101) is arranged inside the adjusting gear (10), and a supporting plate (102) is rotatably arranged at one end of the adjusting shaft (101), and the bottom end of the supporting plate (102) is fixedly connected to the bottom platform (1).

6. The cylinder head valve seat ring laser strengthening device according to claim 5, characterized in that: The upper ends of the pressure rods (6) are sleeved with rotating rings (61), and the outer wall surface of the rotating rings (61) is provided with evenly distributed vertical grooves.

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