A fixing device for laser processing of a diesel engine cylinder head and a fixing method thereof

Abstract

This invention relates to the field of cylinder head processing technology, specifically to a fixing device and method for laser processing of diesel engine cylinder heads. The device includes a machine tool, a laser head mounted in the machine tool, a base mounted on top of the machine tool, and a rotating mechanism mounted on top of the base. The rotating mechanism includes a support seat, and the top of the support seat has multiple clamping mechanisms. A lifting plate is slidably mounted on the top of the support seat. An adjustment mechanism is located inside the support seat, and both ends of the support seat have positioning and limiting mechanisms. The beneficial effects of this invention are that it allows for precise metal cutting using the laser head in the machine tool, enabling high-precision processing of complex cylinder head structures. It also solves the problem in existing technologies where repeated cylinder head operations lead to worker fatigue and reduced processing efficiency during prolonged work.

Description

Technical Field

[0001] This invention relates to the field of cylinder head processing technology, specifically to a fixing device and method for laser processing of diesel engine cylinder heads. Background Technology

[0002] The cylinder head is the core component of a diesel engine. The cylinder head is composed of complex structures such as intake and exhaust ports, cooling water chambers, oil passages, and injector seats. The bottom surface of the cylinder head has intake and exhaust valves, making it a typical complex, thin-walled, box-type part.

[0003] In the manufacturing process of diesel engine cylinder heads, a laser beam from a laser machine tool is used to perform precise metal cutting, enabling high-precision machining of complex structural parts of the cylinder head. During laser cutting, the cylinder head needs to be fixed in the machine tool using a securing device. Existing cylinder head fixing devices typically have two slide rails. The cylinder head is placed on the two slide rails and then pushed into the fixing device, where it is clamped and fixed with the clamping parts and positioning pins. Usually, the fixing device also has stop bars at both ends to limit the cylinder head on both sides, ensuring that the cylinder head is in the ideal position before subsequent clamping and fixing. However, in the existing technology, when pushing the cylinder head into the fixing device along the slide rails, the operator needs to correct the position of the cylinder head while pushing it to ensure that the cylinder head is positioned between the two stop bars. Once one end of the cylinder head intersects with either stop bar, the cylinder head cannot be pushed into the fixing device. This pushing method requires the operator to operate the cylinder head multiple times. Since the cylinder head is relatively heavy, the operator is prone to fatigue. Under prolonged working conditions, the processing efficiency of the cylinder head will be reduced. Summary of the Invention

[0004] The purpose of this invention is to provide a fixing device and method for laser processing of diesel engine cylinder heads, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fixing device for laser processing of diesel engine cylinder heads, comprising a machine tool, a laser head disposed in the machine tool, a base disposed on the top of the machine tool, and a rotating mechanism disposed on the top of the base. The rotating mechanism is provided with a bearing seat, the top of the bearing seat is provided with multiple clamping mechanisms, a lifting plate is slidably mounted on the top of the bearing seat, slide rails are fixedly mounted at both ends of the top of the lifting plate, side stops are provided at both ends of the top of the bearing seat, two stops are symmetrically fixedly mounted on one side of the lifting plate, an adjustment mechanism is provided inside the bearing seat, and a positioning mechanism and a limiting mechanism are provided at both ends of the bearing seat.

[0006] Preferably, the clamping mechanism includes a fixed base, the bottom of which is fixedly connected to a bearing seat. A clamping cylinder is fixedly installed inside the fixed base. A clamping plate is rotatably installed on the telescopic shaft end of the clamping cylinder. Connecting plates are rotatably installed on both sides of the clamping plate. The bottoms of the two connecting plates are fixedly connected to the fixed base.

[0007] Preferably, both ends of the top of the support seat are provided with sliding grooves, and sliders are slidably installed inside the two sliding grooves. The tops of the two sliders are fixedly connected to the bottom of the lifting plate.

[0008] Preferably, the adjusting mechanism includes an adjusting cylinder and two connecting seats. The adjusting cylinder is fixedly installed inside the bearing seat. The two side baffles are respectively fixedly installed on the top of the two connecting seats. An adjusting frame is fixedly installed at the telescopic shaft end of the adjusting cylinder. Guide rods are slidably sleeved at both ends inside the adjusting frame. Both guide rods are fixedly installed inside the bearing seat. Adjusting grooves are opened at both ends of the adjusting frame. Transmission rods are fixedly installed at the bottom of the two connecting seats. The two transmission rods are slidably installed inside the two adjusting grooves. Limiting grooves are opened at both ends of the top of the bearing seat. The two connecting seats are slidably connected to their respective limiting grooves.

[0009] Preferably, the adjustment groove one includes a transmission groove one and a transmission groove two, the transmission groove one and the transmission groove two are connected to each other, the transmission groove one is inclined and the transmission groove two is horizontal.

[0010] Preferably, the positioning mechanism includes a positioning pin, a first triangular block, and a second triangular block. The positioning pin is slidably connected to the bearing seat. The first triangular block is fixedly installed at the bottom of the positioning pin. The second triangular block is fixedly connected to the adjusting frame. The first triangular block and the second triangular block cooperate with each other. A second guide rod is slidably installed at one end of the positioning pin. The second guide rod is fixedly installed inside the bearing seat. A first spring is sleeved on the outside of the second guide rod.

[0011] Preferably, the limiting mechanism includes a groove and a transmission seat. The groove is opened at one end of the bearing seat, and the transmission seat is fixedly connected to the adjusting frame. A limiting block is rotatably installed inside the groove. Adjusting grooves are opened at both ends of the transmission seat. A transmission rod is slidably installed inside the two adjusting grooves. A top rod is fixedly installed outside the transmission rod and is slidably connected to the bearing seat.

[0012] The second adjustment groove includes a third transmission groove and a fourth transmission groove, which are interconnected. The third transmission groove is inclined and the fourth transmission groove is horizontal.

[0013] Preferably, both ends of the top of the lifting plate are provided with groove 2 and groove 3, respectively. The two grooves 3 cooperate with the two grooves 1, and the two grooves 2 cooperate with the two positioning pins.

[0014] This invention also discloses a clamping method for a fixture used in a cylinder head laser processing machine tool, the method comprising the following steps:

[0015] S1: First, place the cylinder head on top of the two slide rails, and then slide the cylinder head and the lifting plate to the middle of the bearing seat;

[0016] S2: Subsequently, by operating the adjustment mechanism and the limiting mechanism, the cylinder head is centered in the middle of the bearing seat, and the two positioning mechanisms position the cylinder head.

[0017] S3: Finally, multiple clamping mechanisms are activated to press multiple positions on the cylinder head, and then the cylinder head can be laser-cut using the laser head.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. In this device, a laser head in the machine tool is used to perform a precise metal cutting process, which can process the complex structure of the cylinder head with high precision. At the same time, when fixing the cylinder head, it is not necessary to correct the position of the cylinder multiple times, which reduces the burden on the workers and solves the problem that the workers are prone to fatigue due to repeated operation of the cylinder head in the existing technology, and the processing efficiency of the cylinder head will be reduced under long working conditions.

[0020] 2. Through the setting of the limiting mechanism, while the adjusting mechanism is operating, the limiting mechanism limits the other side of the cylinder head. Under the action of two blocks, two side blocks and two limiting blocks, the cylinder head can be centered in the middle of the bearing seat, ensuring the correspondence between the subsequent positioning pin and the positioning hole in the cylinder head. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the top structure of the base of the present invention.

[0023] Figure 3 This is a partial three-dimensional structural diagram of the present invention;

[0024] Figure 4 This is a schematic diagram of the top structure of the receiving seat of the present invention;

[0025] Figure 5 This is a schematic diagram of the support plate structure of the present invention;

[0026] Figure 6This is a schematic diagram of the clamping mechanism of the present invention;

[0027] Figure 7 This is a schematic diagram of the adjustment mechanism structure of the present invention;

[0028] Figure 8 This is a schematic diagram of the bottom structure of the connector of the present invention;

[0029] Figure 9 This is a schematic diagram of the adjusting frame structure of the present invention;

[0030] Figure 10 This is a schematic diagram of the limiting mechanism structure of the present invention;

[0031] Figure 11 This is a schematic diagram of the positioning mechanism of the present invention.

[0032] The components represented by each number in the attached diagram are listed below: 1. Base; 2. Rotating mechanism; 3. Bearing seat; 4. Fixed seat; 5. Clamping cylinder; 6. Clamping plate; 7. Connecting plate; 8. Lifting plate; 9. Slide rail; 10. Slide groove; 11. Slider; 12. Side stop bar; 13. Stop block; 14. Adjusting cylinder; 15. Adjusting frame; 16. Guide rod one; 17. Connecting seat; 18. Transmission rod one; 19. Limiting groove; 20. Transmission groove one; 21. Transmission groove two; 22. Positioning pin; 23. Triangular block one; 24. Triangular block two; 25. Groove one; 26. Limiting block; 27. Transmission seat; 28. Transmission rod two; 29. ​​Top rod; 30. Transmission groove three; 31. Transmission groove four; 32. Guide rod two; 33. Spring one; 34. Groove two; 35. Groove three; 36. Machine tool; 37. Laser head. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] This invention provides a technical solution: such as Figures 1-11The present invention relates to a fixing device for laser processing of diesel engine cylinder head, comprising a machine tool 36, a laser head 37 disposed in the machine tool 36, a base 1 disposed on the top of the machine tool 36, and a rotating mechanism 2 disposed on the top of the base 1. The rotating mechanism 2 is provided with a bearing seat 3, and the top of the bearing seat 3 is provided with multiple clamping mechanisms. A lifting plate 8 is slidably mounted on the top of the bearing seat 3. Slide rails 9 are fixedly mounted on both ends of the top of the lifting plate 8. Side bars 12 are provided on both ends of the top of the bearing seat 3. Two blocks 13 are symmetrically fixedly mounted on one side of the lifting plate 8. An adjustment mechanism is provided inside the bearing seat 3. A positioning mechanism and a limiting mechanism are provided at both ends of the bearing seat 3.

[0035] The clamping mechanism includes a fixed base 4, the bottom of which is fixedly connected to the bearing base 3. A clamping cylinder 5 is fixedly installed inside the fixed base 4. A clamping plate 6 is rotatably installed on the telescopic shaft end of the clamping cylinder 5. Connecting plates 7 are rotatably installed on both sides of the clamping plate 6. The bottoms of the two connecting plates 7 are fixedly connected to the fixed base 4.

[0036] Both ends of the top of the support base 3 are provided with sliding grooves 10, and sliders 11 are slidably installed inside the two sliding grooves 10. The tops of the two sliders 11 are fixedly connected to the bottom of the lifting plate 8.

[0037] The adjustment mechanism includes an adjustment cylinder 14 and two connecting seats 17. The adjustment cylinder 14 is fixedly installed inside the bearing seat 3. Two side baffles 12 are fixedly installed on the top of the two connecting seats 17 respectively. An adjustment frame 15 is fixedly installed on the telescopic shaft end of the adjustment cylinder 14. Guide rods 16 are slidably sleeved on both ends inside the adjustment frame 15. Both guide rods 16 are fixedly installed inside the bearing seat 3. Adjustment grooves are opened on both ends of the adjustment frame 15. Transmission rods 18 are fixedly installed on the bottom of the two connecting seats 17. The two transmission rods 18 are slidably installed inside the two adjustment grooves. Limiting grooves 19 are opened on both ends of the top of the bearing seat 3. The two connecting seats 17 are slidably connected to their respective limiting grooves 19.

[0038] The adjustment groove includes a transmission groove 20 and a transmission groove 21. The transmission groove 20 and the transmission groove 21 are connected to each other. The transmission groove 20 is inclined and the transmission groove 21 is horizontal.

[0039] The positioning mechanism includes a positioning pin 22, a first triangular block 23, and a second triangular block 24. The positioning pin 22 is slidably connected to the bearing seat 3. The first triangular block 23 is fixedly installed at the bottom of the positioning pin 22. The second triangular block 24 is fixedly connected to the adjusting frame 15. The first triangular block 23 and the second triangular block 24 cooperate with each other. A second guide rod 32 is slidably installed at one end of the positioning pin 22. The second guide rod 32 is fixedly installed inside the bearing seat 3. A first spring 33 is sleeved on the outside of the second guide rod 32.

[0040] The limiting mechanism includes a groove 25 and a transmission seat 27. The groove 25 is opened at one end of the bearing seat 3. The transmission seat 27 is fixedly connected to the adjusting frame 15. A limiting block 26 is rotatably installed inside the groove 25. Adjusting grooves 2 are opened at both ends of the transmission seat 27. A transmission rod 28 is slidably installed inside the two adjusting grooves 2. A top rod 29 is fixedly installed outside the transmission rod 28. The top rod 29 is slidably connected to the bearing seat 3.

[0041] The second adjustment groove includes a third transmission groove 30 and a fourth transmission groove 31, which are interconnected. The third transmission groove 30 is inclined and the fourth transmission groove 31 is horizontal.

[0042] The top of the lifting plate 8 has two grooves 34 and 35 at both ends. The two grooves 35 cooperate with the two grooves 25 respectively, and the two grooves 34 cooperate with the two positioning pins 22 respectively.

[0043] Working principle: First, fix the base 1 in the machine tool 36. When fixing the diesel engine cylinder head, first slide the lifting plate 8 outward a certain distance. When the lifting plate 8 slides, it drives the two sliders 11 at its bottom to slide along their respective corresponding slide grooves 10. The cooperation between the sliders 11 and the slide grooves 10 can prevent the lifting plate 8 from falling off the bearing seat 3 and limit its sliding direction. Then, place the cylinder head on the top of the two slide rails 9. After placement, push the cylinder head and the lifting plate 8 to the middle of the bearing seat 3. After the lifting plate 8 is completely in the middle of the bearing seat 3, push the cylinder head along the two slide rails 9 until one side of the cylinder head contacts the two stops 13. The two stops 13 initially limit one side of the cylinder head.

[0044] Subsequently, the adjusting cylinder 14 is activated, pushing the adjusting frame 15 to move. The adjusting frame 15 slides along the two guide rods 16, which ensure the stability of the adjusting frame 15 during movement. As the adjusting frame 15 moves, the two transmission rods 18 first move inside the two transmission slots 20. At the same time, under the action of the four limiting slots 19, the two connecting seats 17 simultaneously drive the two side baffles 12 to move closer to each other. The two side baffles 12 act on the corresponding sides of the cylinder head to center the cylinder head. Before the cylinder head is pushed into the ideal position, the distance between the two side baffles 12 and the sides of the cylinder head is relatively far.

[0045] During the movement of the aforementioned adjusting frame 15, the adjusting frame 15 drives the two transmission seats 27 to move synchronously, and the multiple transmission grooves 30 and 41 move synchronously. The two transmission rods 28 move upward synchronously and drive their respective corresponding push rods 29 to move upward. The two push rods 29 act on their respective corresponding limiting blocks 26, and the two limiting blocks 26 flip accordingly. The two limiting blocks 26 act vertically on one side of the cylinder head. Under the action of the two stop blocks 13, the two side stop bars 12 and the two limiting blocks 26, the cylinder head is centered in the middle position of the bearing seat 3.

[0046] As the adjusting cylinder 14 drives the adjusting frame 15 to continue moving, the two transmission rods 18 are located inside the two transmission slots 21, and the two ends of the two transmission rods 28 are located inside the two transmission slots 31. At this time, as the adjusting frame 15 continues to move, the two side stops 12 and the two top rods 29 no longer move. The two triangular blocks 24 act on the two triangular blocks 23, and the force on the two triangular blocks 23 drives the two positioning pins 22 to move upward along the two guide rods 16. The two springs 33 are stretched, and the two positioning pins 22 are inserted into the two pin holes of the cylinder head, thus limiting and fixing the position of the cylinder head again, preventing the cylinder head from moving during processing. Finally, the multiple clamping cylinders 5 are activated, and the multiple clamping... The cylinder 5 drives its corresponding clamping plate 6 to rotate. One end of the multiple clamping plates 6 presses and fixes multiple positions of the cylinder head, allowing the cylinder head to be processed. The rotating mechanism 2 can rotate the cylinder head, thereby processing different sides of the cylinder head. After the cylinder head is fixed, the laser head 37 in the machine tool 36 performs laser cutting on the cylinder head. In this device, the laser head 37 in the machine tool 36 performs a precise metal cutting process, enabling high-precision processing of the complex structure of the cylinder head. At the same time, when fixing the cylinder head, it is not necessary to repeatedly correct the position of the cylinder, reducing the burden on the operator and solving the problem in the prior art that the operator is prone to fatigue due to repeated operation of the cylinder head, and the processing efficiency of the cylinder head will be reduced under long working conditions.

[0047] The present invention also discloses a method for fixing a fixing device for laser processing of diesel engine cylinder heads, the method comprising the following steps:

[0048] S1: First, place the cylinder head on top of the two slide rails 9, and then slide the cylinder head and the lifting plate 8 to the middle of the bearing seat 3.

[0049] S2: Subsequently, by operating the adjustment mechanism and the limiting mechanism, the cylinder head is centered in the middle of the bearing seat 3, and the two positioning mechanisms position the cylinder head.

[0050] S3: Finally, multiple clamping mechanisms are activated to press multiple positions of the cylinder head, and then the laser head 37 can be used to perform laser cutting on the cylinder head.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixing device for laser processing of a diesel engine cylinder head, comprising a machine tool (36), a laser head (37) arranged in the machine tool (36), a base (1) arranged on the top of the machine tool (36), and a rotating mechanism (2) arranged on the top of the base (1), characterized in that: The rotating mechanism (2) is provided with a support seat (3), the top of the support seat (3) is provided with multiple clamping mechanisms, the top of the support seat (3) is slidably mounted with a lifting plate (8), both ends of the top of the lifting plate (8) are fixedly mounted with slide rails (9), both ends of the top of the support seat (3) are provided with side bars (12), two blocks (13) are symmetrically fixedly mounted on one side of the lifting plate (8), the support seat (3) is provided with an adjustment mechanism, and both ends of the support seat (3) are provided with a positioning mechanism and a limiting mechanism; The adjustment mechanism includes an adjustment cylinder (14) and two connecting seats (17). The adjustment cylinder (14) is fixedly installed inside the bearing seat (3). The two side baffles (12) are respectively fixedly installed on the top of the two connecting seats (17). An adjustment frame (15) is fixedly installed at the telescopic shaft end of the adjustment cylinder (14). Guide rods (16) are slidably sleeved at both ends inside the adjustment frame (15). The two guide rods (16) are fixedly installed inside the bearing seat (3). An adjustment groove is opened at both ends of the adjustment frame (15). A transmission rod (18) is fixedly installed at the bottom of the two connecting seats (17). The two transmission rods (18) are slidably installed inside the two adjustment grooves. (3) Limiting grooves (19) are provided at both ends of the top, and the two connecting seats (17) are slidably connected to their respective limiting grooves (19); the positioning mechanism includes a positioning pin (22), a triangular block one (23) and a triangular block two (24). The positioning pin (22) is slidably connected to the bearing seat (3). The triangular block one (23) is fixedly installed at the bottom of the positioning pin (22). The triangular block two (24) is fixedly connected to the adjusting frame (15). The triangular block one (23) and the triangular block two (24) cooperate with each other. A guide rod two (32) is slidably installed at one end of the positioning pin (22). The guide rod two (32) is fixedly installed inside the bearing seat (3). A spring one (33) is sleeved on the outside of the guide rod two (32). The limiting mechanism includes a groove (25) and a transmission seat (27). The groove (25) is opened at one end of the bearing seat (3). The transmission seat (27) is fixedly connected to the adjusting frame (15). A limiting block (26) is rotatably installed inside the groove (25). Adjusting grooves are opened at both ends of the transmission seat (27). A transmission rod (28) is slidably installed inside the two adjustment grooves. A top rod (29) is fixedly installed outside the transmission rod (28). The top rod (29) is slidably connected to the bearing seat (3). The second adjustment groove includes a third transmission groove (30) and a fourth transmission groove (31). The third transmission groove (30) and the fourth transmission groove (31) are interconnected. The third transmission groove (30) is inclined and the fourth transmission groove (31) is horizontal.

2. The fixing device for laser processing of a diesel engine cylinder head according to claim 1, characterized in that: The clamping mechanism includes a fixed base (4), the bottom of which is fixedly connected to the bearing base (3). A clamping cylinder (5) is fixedly installed inside the fixed base (4). A clamping plate (6) is rotatably installed on the telescopic shaft end of the clamping cylinder (5). A connecting plate (7) is rotatably installed on both sides of the clamping plate (6). The bottom of both connecting plates (7) is fixedly connected to the fixed base (4).

3. The fixing device for laser processing of a diesel engine cylinder head according to claim 1, characterized in that: The top of the support base (3) is provided with two sliding grooves (10), and two sliders (11) are slidably installed inside the two sliding grooves (10). The top of the two sliders (11) is fixedly connected to the bottom of the lifting plate (8).

4. The fixing device for laser processing of diesel engine cylinder head according to claim 1, characterized in that: The first adjustment groove includes a first transmission groove (20) and a second transmission groove (21). The first transmission groove (20) and the second transmission groove (21) are connected to each other. The first transmission groove (20) is inclined and the second transmission groove (21) is horizontal.

5. A fixing device for laser processing of diesel engine cylinder heads according to claim 1, characterized in that: The top of the lifting plate (8) has two grooves, namely groove 2 (34) and groove 3 (35), which respectively cooperate with the two grooves 1 (25) and the two grooves 2 (34) respectively cooperate with the two positioning pins (22).

6. A method for fixing a fixing device for laser processing of a diesel engine cylinder head, comprising the fixing device for laser processing of a diesel engine cylinder head as described in any one of claims 1-5, characterized in that... The method includes the following steps: S1: First, place the cylinder head on top of the two slide rails (9), and then slide the cylinder head and the lifting plate (8) to the middle of the bearing seat (3); S2: Subsequently, by operating the adjustment mechanism and the limiting mechanism, the cylinder head is centered in the middle of the bearing seat (3), and the two positioning mechanisms position the cylinder head. S3: Finally, multiple clamping mechanisms are activated to press the cylinder head at multiple positions, and the cylinder head can be laser-cut using the laser head (37).

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