Casting device and process for engine cylinder cover

Abstract

The invention relates to a casting device and process for an engine cylinder cover. Relates to the technical field of engine cylinder cover production, and comprises a first rack body and a second rack body, and the top of the second rack body is jointly provided with a guide rail; the guide rail is connected with a first engine cylinder cover transferring clamp and a second engine cylinder cover transferring clamp in a sliding mode. Wherein a rotary pressing piece is mounted on the first engine cylinder cover transferring clamp; a pressing mechanism is installed on the second engine cylinder cover transferring clamp. According to the invention, after the detection is completed, the cylinder rod of the driving cylinder extends out, the L-shaped connecting seat drives the insertion shaft to slide along the arc-shaped groove, and the insertion shaft and the driving gear are eccentrically fixed, so that the driving gear can be driven to rotate, and meanwhile, the driving gear drives the meshing gear mounted on the driving shaft to rotate; therefore, the overturning block for clamping the engine cylinder cover drives the engine cylinder cover to overturn at a certain angle, the bottom of the engine cylinder cover is deflected to the outer side, and quality inspection personnel can mark the defect position of the bottom of the engine cylinder cover conveniently.

Description

Technical Field

[0001] The invention relates to the technical field of engine cylinder head production, and in particular to a casting device and a process thereof for an engine cylinder head. Background Art

[0002] The engine cylinder head is an important part of the engine; the engine cylinder head is used to seal the cylinder and form the combustion chamber. The side-valve engine cylinder head is cast with a water jacket, water inlet and outlet holes, spark plug holes, bolt holes, combustion chamber, etc. The overhead valve engine cylinder head, in addition to the cooling water jacket, also has valve devices, intake and exhaust channels, etc.

[0003] The engine cylinder head is usually processed and formed by casting; in the engine cylinder head processing process, casting is a step in the engine cylinder head production process; the engine cylinder head production process also includes cylinder head defect detection equipment and air tightness detection equipment connected to the casting machine.

[0004] Traditional engine cylinder head production equipment needs to move the cast engine cylinder heads to multiple testing equipment for testing. This type of engine cylinder head finished product production efficiency is low and the labor intensity is high.

[0005] Moreover, the existing engine cylinder heads are only transferred by simple mechanical grippers during transportation, which makes it inconvenient for quality inspectors to mark defective parts. Summary of the invention

[0006] Technical issues to be solved

[0007] The purpose of the present invention is to overcome the shortcomings of the prior art, meet the actual needs, provide a casting device and process for an engine cylinder head, which can gradually transfer the cast engine cylinder head, thereby realizing the detection of different types of engine cylinder heads, effectively reducing the labor intensity, and improving the production efficiency of the engine cylinder head; and facilitate marking the location where the defect occurs, so as to repair the defective location later. In order to solve the technical problems raised by the above background technology.

[0008] Technical Solution

[0009] In order to achieve the purpose of the present invention, the technical solution adopted by the present invention is:

[0010] A casting device for an engine cylinder head comprises a first frame body and a second frame body, wherein a guide rail is installed on the top of the second frame body; a first engine cylinder head transfer clamp and a second engine cylinder head transfer clamp are slidably connected to the guide rail; a rotating pressing member is installed on the first engine cylinder head transfer clamp; and a pressing mechanism is installed on the second engine cylinder head transfer clamp;

[0011] A cylinder head fixing seat is provided below the first engine cylinder head transfer clamp; the cylinder head fixing seat is mounted on the rotating mechanism; the rotating mechanism is fixed inside the first frame body;

[0012] A cylinder head air tightness detection bottom mold is provided below the second engine cylinder head transfer clamp; the cylinder head air tightness detection bottom mold is fixedly installed on the top side of the air tightness detection box;

[0013] A vent pipe is installed at the bottom of the cylinder head air tightness detection bottom mold; a solenoid valve and a pressure gauge are connected in series to the vent pipe;

[0014] The first engine cylinder head transfer gripper and the second engine cylinder head transfer gripper adopt the same structure, both of which include a main beam, a slide rail is fixed at the bottom of the main beam; the two ends of the slide rail are slidably connected with a slide seat, and each slide seat is equipped with a driving frame; the upper end of each driving frame is equipped with a pushing cylinder; the pushing cylinder is fixed at the upper end of the main beam;

[0015] A clamping and flipping assembly is fixed below each driving frame; the two clamping and flipping assemblies are symmetrically arranged.

[0016] As a further technical solution of the present invention, a lifting frame is fixed in the middle position of the top of the main beam, and a gas control cabinet is fixed on one side of the lifting frame; square channel steels are fixed at both ends of the main beam, DC drive motors are respectively fixed inside the two ends of the square channel steel, and a drive wheel is installed on the output shaft of the DC drive motor; the drive wheel is installed in the guide groove on the inner side of the guide rail; a U-shaped frame is fixed at the bottom of the main beam, and a rotating holding part or a clamping mechanism is installed on the U-shaped frame.

[0017] As a further technical solution of the present invention, the rotating holding part includes a first holding cylinder, which is fixed on the U-shaped frame, and its cylinder rod extends to the bottom of the U-shaped frame and is equipped with a seat bearing; the seat bearing is fixed on the pressure plate.

[0018] As a further technical solution of the present invention, the clamping mechanism includes a second pressing cylinder, which is fixed on the U-shaped frame, and its cylinder rod passes through the bottom of the U-shaped frame and is fixedly connected to the pressing plate; two guide rods are also fixed on the pressing plate, and the guide rods are slidably connected in the guide sleeve; the guide sleeve is embedded and fixed with the U-shaped frame; the tops of the two guide rods are commonly connected to a connecting frame.

[0019] As a further technical solution of the present invention, the clamping and flipping assembly includes a connecting seat fixedly mounted on the driving frame, an outer cylinder is fixed at the bottom of the connecting seat; a driving cylinder is arranged on the outer side of the outer cylinder, and the cylinder rod end of the driving cylinder is connected to an L-shaped connecting seat; a toggle shaft is movably arranged on the inner side of the L-shaped connecting seat, and the toggle shaft passes through the inside of the n-shaped frame through an arc groove and is fixed to the driving gear; the driving gear is meshed and connected with the meshing gear; the meshing gear is mounted on the driving shaft in a matching manner;

[0020] The driving shaft is connected to the n-shaped frame through a bearing, and a turning block is welded on the inner end of the driving shaft; an insert shaft is arranged on the inner side of the turning block.

[0021] As a further technical solution of the present invention, the arc groove passes through the n-shaped frame horizontally; an inner cylinder is fixed on the upper end of the n-shaped frame, and the upper end of the inner cylinder is slidably connected in the outer cylinder; a slide groove is opened horizontally through the upper end of the outer cylinder; the upper end of the driving cylinder is movably connected to the cylinder seat through a rotating shaft; the cylinder seat passes through the slide groove horizontally and is slidably connected to the slide groove;

[0022] The cylinder seat is also fixedly connected to the cylinder rod of the telescopic cylinder; the lower end of the telescopic cylinder is movably connected to the outer cylinder through a rotating shaft.

[0023] As a further technical solution of the present invention, the first frame body and the second frame body are connected by a fixing plate; an industrial computer is also fixed to one side of the upper end of the first frame body; a feeding conveyor and a side conveyor are provided on the outer side of the first frame body; a finished product conveyor is provided at one end of the second frame body away from the first frame body; and both ends of the guide rail extend to the top of the first frame body and the second frame body respectively.

[0024] The processing technology of the engine cylinder head casting device comprises the following steps:

[0025] Step 1, making a wax mold, and then coating the surface of the wax mold with refractory material to form a shell; heating the wax mold to melt and flow out, and then pouring molten metal into the shell, and cooling and forming to obtain an engine cylinder head;

[0026] Step 2, grinding the cylinder head, installing the engine cylinder head on a grinding device, trimming the edge of the engine cylinder head, and grinding away burrs and excess material;

[0027] Step 3, defect detection of the engine cylinder head, transferring the engine cylinder head to the detection equipment, performing defect detection on the engine cylinder head, and checking whether there are defects such as cracks, sand holes, and pores on the surface of the cylinder head;

[0028] Step 4: Testing the sealing performance of the engine cylinder head. Press the engine cylinder head tightly into the equipment and test the sealing performance of the cylinder head after passing gas.

[0029] In the step 3, the defect detection of the engine cylinder head is to transmit the engine cylinder head to the outside of the first frame body through the feeding conveyor, and the engine cylinder head is clamped by the engine cylinder head transfer clamp 1, and transferred to the top of the cylinder head fixed seat for fixing, and then the engine cylinder head is clamped by the rotating pressing member; the rotating mechanism drives the cylinder head fixed seat to rotate, and multiple CCD cameras are set at the four corners of the inner side of the first frame body, and the engine cylinder head is inspected for defects by the CCD cameras; the engine cylinder head with defects such as cracks, sand holes, and pores is removed and transmitted out through the side conveyor;

[0030] After the defect detection is completed, the engine cylinder head transfer gripper one and the engine cylinder head transfer gripper two move to the left at the same time, the engine cylinder head transfer gripper one clamps a new engine cylinder head on the feeding conveyor, and the engine cylinder head transfer gripper two clamps the engine cylinder head above the cylinder head fixed seat, the engine cylinder head transfer gripper one and the engine cylinder head transfer gripper two move to the left at the same time, the engine cylinder head transfer gripper two transfers the engine cylinder head after the defect detection into the second frame body, the clamping mechanism is activated to press the cylinder head on the cylinder head air tightness detection bottom mold; then compressed gas is introduced into the cylinder head through the ventilation pipe, after a certain amount of gas is introduced, the valve is kept closed, left to stand for a period of time, and the sealing of the cylinder head is detected by a pressure gauge.

[0031] (3) Beneficial effects:

[0032] A. In the present invention, when the first engine cylinder head transfer gripper or the second engine cylinder head transfer gripper moves, the DC drive motor drives the external drive wheel to slide to the left along the guide groove inside the guide rail, and when sliding to the feeding conveyor, the engine cylinder head is clamped; when clamping, the cylinder rods of the two push cylinders are pushed out, so that the drive frame slides outward along the slide rail through the slide seat, and then the two clamping and flipping assemblies are respectively placed on both sides of the engine cylinder head, and then the cylinder rods of the two push cylinders are retracted, so that the drive frame slides inward along the slide rail through the slide seat, and the two clamping and flipping assemblies realize the clamping of the engine cylinder head;

[0033] B. In the present invention, after the clamping is completed, the DC drive motor drives the external drive wheel to slide to the right along the guide groove inside the guide rail until the engine cylinder head is placed above the cylinder head fixing seat; the rotating mechanism drives the cylinder head fixing seat to rotate, and multiple CCD cameras are arranged at the four corners inside the first frame body, and the engine cylinder head is inspected for defects using the CCD cameras; the engine cylinder head with defects such as cracks, sand holes, and pores is removed and transmitted out through the side conveyor;

[0034] C. In the present invention, when the engine cylinder head is clamped and lifted, the engine cylinder head is driven to move up and down, and the up and down movement structure is completed by the cooperation of the outer cylinder and the inner cylinder; when the cylinder rod of the telescopic cylinder is contracted, the cylinder seat drives the driving cylinder to slide downward along the slide groove, and under the self-gravity of the n-shaped frame and the counterweight of the engine cylinder head, the inner cylinder is extended from the outer cylinder, thereby realizing the relative elongation of the outer cylinder and the inner cylinder, so as to facilitate the clamping of the engine cylinder head;

[0035] D. In the present invention, after the inspection is completed, the cylinder rod of the driving cylinder is extended, and the L-shaped connecting seat will drive the plug-in shaft to slide along the arc groove. Since the plug-in shaft and the driving gear are eccentrically fixed, the driving gear can be driven to rotate. At the same time, the driving gear drives the meshing gear installed on the driving shaft to rotate, so that the flip block clamped on the engine cylinder head drives the engine cylinder head to flip at a certain angle, thereby deflecting the bottom of the engine cylinder head to the outside, so as to facilitate the quality inspectors to mark the defective position of the bottom of the engine cylinder head. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0037] Figure 2 For the present invention Figure 1 Schematic diagram of the rear structure;

[0038] Figure 3 For the present invention Figure 1 The main view;

[0039] Figure 4 For the present invention Figure 3 AA section view;

[0040] Figure 5 It is a structural schematic diagram of the second engine cylinder head transfer gripper in the present invention;

[0041] Figure 6 It is a schematic diagram of the planar structure of the engine cylinder head transfer gripper 1 in the present invention;

[0042] Figure 7 For the present invention Figure 5 Schematic diagram from another perspective;

[0043] Figure 8 It is a structural schematic diagram of the clamping and flipping assembly in the present invention;

[0044] Fig. 9 For the present invention Figure 8 Schematic diagram from another perspective;

[0045] Fig.10 For the present invention Figure 8 The main view;

[0046] Fig.11 For the present invention Figure 1 A partial enlarged schematic diagram of

[0047] Fig.12 For the present invention Figure 5 A partial enlarged schematic diagram of .

[0048] In the figure: 1-feeding conveyor, 2-first frame, 3-cylinder head fixing seat, 4-rotating mechanism, 5-engine cylinder head transfer clamp 1, 6-guide rail, 7-engine cylinder head transfer clamp 2, 8-air tightness detection box, 9-second frame, 10-cylinder head air tightness detection bottom mold, 11-ventilation pipe, 12-side conveyor, 13-finished product conveyor, 14-industrial computer, 15-rotating pressing member, 16-pressing mechanism;

[0049] 50-slide seat, 51-main beam, 52-slide rail, 53-drive frame, 54-push cylinder, 55-lifting frame, 56-air control cabinet, 57-U-shaped frame, 58-clamping and flipping assembly, 59-driving wheel, 510-square channel steel;

[0050] 581-connecting seat, 582-outer cylinder, 583-inner cylinder, 584-n-type frame, 585-driving gear, 586-meshing gear, 587-driving shaft, 588-turning block, 589-inserting shaft, 5810-L-type connecting seat, 5811-arc groove, 5812-sliding shaft, 5813-driving cylinder, 5814-cylinder seat, telescopic cylinder, slide groove;

[0051] 151-first holding cylinder, 152-seat bearing, 153-pressure plate;

[0052] 161 - second holding cylinder, 162 - guide sleeve, 163 - holding plate, 164 - connecting frame. DETAILED DESCRIPTION

[0053] Please refer to the attached Figure 1-3 The casting device of the engine cylinder head comprises a first frame body 2 and a second frame body 9, wherein a guide rail 6 is installed on the top of the second frame body 9; the guide rail 6 is slidably connected with an engine cylinder head transfer clamp 1 5 and an engine cylinder head transfer clamp 2 7; wherein the engine cylinder head transfer clamp 1 5 is installed with a rotary holding member 15; and the engine cylinder head transfer clamp 2 7 is installed with a clamping mechanism 16;

[0054] A cylinder head fixing seat 3 is provided below the engine cylinder head transfer clamp 1 5; the cylinder head fixing seat 3 is mounted on a rotating mechanism 4; the rotating mechanism 4 is fixed inside the first frame body 2;

[0055] A cylinder head air tightness detection bottom mold 10 is provided below the engine cylinder head transfer clamp 2 7; the cylinder head air tightness detection bottom mold 10 is fixedly installed on the top side of the air tightness detection box 8;

[0056] A vent pipe 11 is installed at the bottom of the cylinder head air tightness detection bottom mold 10; a solenoid valve and a pressure gauge are connected in series to the vent pipe 11.

[0057] Please refer to the attached Figure 3-7 , Fig.11 The engine cylinder head transfer gripper 1 5 and the engine cylinder head transfer gripper 2 7 are of the same structure, both of which include a main beam 51, a slide rail 52 is fixed at the bottom of the main beam 51; both ends of the slide rail 52 are slidably connected with a slide seat 50, and each slide seat 50 is equipped with a driving frame 53; the upper end of each driving frame 53 is equipped with a pushing cylinder 54; the pushing cylinder 54 is fixed to the upper end of the main beam 51;

[0058] A clamping and flipping assembly 58 is fixed below each driving frame 53; the two clamping and flipping assemblies 58 are symmetrically arranged.

[0059] To be more specific, a hanging frame 55 is fixed in the middle position of the top of the main beam 51, and a gas control cabinet 56 is fixed on one side of the hanging frame 55; square channel steels 510 are fixed at both ends of the main beam 51, DC drive motors are respectively fixed inside the two ends of the square channel steels 510, and a drive wheel 59 is installed on the output shaft of the DC drive motor; the drive wheel 59 is installed in the guide groove on the inner side of the guide rail 6; a U-shaped frame 57 is fixed at the bottom of the main beam 51, and a rotating holding member 15 or a clamping mechanism 16 is installed on the U-shaped frame 57.

[0060] By adopting the above technical solution, when the engine cylinder head transfer gripper 1 5 or the engine cylinder head transfer gripper 2 7 moves, the DC drive motor drives the external drive wheel 59 to slide to the left along the guide groove on the inner side of the guide rail 6, and when sliding to the feeding conveyor 1, the engine cylinder head is clamped; when clamping, the cylinder rods of the two pushing cylinders 54 are pushed out, so that the drive frame 53 slides outward along the slide rail 52 through the slide seat 50, and then the two clamping and flipping assemblies 58 are respectively placed on both sides of the engine cylinder head, and then the cylinder rods of the two pushing cylinders 54 are retracted, so that the drive frame 53 slides inward along the slide rail 52 through the slide seat 50, and the two clamping and flipping assemblies 58 realize the clamping of the engine cylinder head;

[0061] After the clamping is completed, the DC drive motor drives the external drive wheel 59 to slide to the right along the guide groove on the inner side of the guide rail 6 until the engine cylinder head is placed on the top of the cylinder head holder 3; the rotating mechanism 4 drives the cylinder head holder 3 to rotate, and multiple CCD cameras are arranged at the four corners on the inner side of the first frame body 2, and the engine cylinder head is inspected for defects using the CCD cameras; the engine cylinder heads with defects such as cracks, sand holes, and air holes are removed and transmitted out through the side conveyor 12.

[0062] Please see attached Figure 6 In this embodiment, the rotating holding member 15 includes a first holding cylinder 151, which is fixed on the U-shaped frame 57, and its cylinder rod passes through the bottom of the U-shaped frame 57 and is equipped with a seat bearing 152; the seat bearing 152 is fixed on the pressure plate 153.

[0063] By adopting the above technical solution, after the cylinder rod of the first holding cylinder 151 is extended, the engine cylinder head is pressed against the cylinder head fixing seat 3 by the pressure plate 153, which can ensure the stability of the engine cylinder head when the rotating mechanism 4 drives the cylinder head fixing seat 3 to rotate; the setting of the seat bearing 152 can ensure that the pressure plate 153 presses the engine cylinder head and can rotate at the same time.

[0064] Please see attached Fig.12 In this embodiment, the clamping mechanism 16 includes a second clamping cylinder 161, which is fixed on the U-shaped frame 57, and its cylinder rod passes through the bottom of the U-shaped frame 57 and is fixedly connected to the clamping plate 163; two guide rods are also fixed on the clamping plate 163, and the guide rods are slidably connected in the guide sleeve 162; the guide sleeve 162 is embedded and fixed with the U-shaped frame 57; the tops of the two guide rods are commonly connected with a connecting frame 164.

[0065] By adopting the above technical solution, when the air tightness test of the engine cylinder head is carried out, the second holding cylinder 161 pushes the holding plate 163 to hold the engine cylinder head. After pressing, compressed gas is introduced into the cylinder head through the ventilation pipe 11. After a certain amount of gas is introduced, the valve is kept closed and left to stand for a period of time, and the sealing of the cylinder head is tested by a pressure gauge.

[0066] Please see attached Figure 8-10In this embodiment, the clamping and flipping assembly 58 includes a connecting seat 581 fixedly mounted on the driving frame 53, and an outer cylinder 582 is fixed at the bottom of the connecting seat 581; a driving cylinder 5813 is arranged on the outer side of the outer cylinder 582, and the cylinder rod end of the driving cylinder 5813 is connected to an L-shaped connecting seat 5810; a toggle shaft 5812 is movably arranged on the inner side of the L-shaped connecting seat 5810, and the toggle shaft 5812 passes through the inside of the n-shaped frame 584 through an arc groove 5811 and is fixed to a driving gear 585; the driving gear 585 is meshed and connected with a meshing gear 586; the meshing gear 586 is mounted on the driving shaft 587 in coordination;

[0067] The driving shaft 587 is connected to the n-shaped frame 584 through a bearing, and a turning block 588 is welded to the inner end of the driving shaft 587; an insert shaft 589 is provided on the inner side of the turning block 588.

[0068] By adopting the above technical solution, when the engine cylinder head is clamped and lifted, the engine cylinder head will be driven to move up and down, and the up and down movement structure is completed by the cooperation of the outer cylinder 582 and the inner cylinder 583; when the cylinder rod of the telescopic cylinder 5815 is contracted, the cylinder seat 5814 will drive the driving cylinder 5813 to slide downward along the slide groove 5816, and under the self-gravity of the n-shaped frame 584 and the counterweight of the engine cylinder head, the inner cylinder 583 extends out from the outer cylinder 582, thereby realizing the relative elongation of the outer cylinder 582 and the inner cylinder 583, so as to facilitate the clamping of the engine cylinder head.

[0069] Please refer to the attached Figure 5-10 In this embodiment, the arc groove 5811 horizontally penetrates the n-shaped frame 584; the upper end of the n-shaped frame 584 is fixed with an inner cylinder 583, and the upper end of the inner cylinder 583 is slidably connected in the outer cylinder 582; the upper end of the outer cylinder 582 is horizontally penetrated with a slide groove 5816; the upper end of the driving cylinder 5813 is movably connected with a cylinder seat 5814 through a rotating shaft; the cylinder seat 5814 horizontally penetrates the slide groove 5816 and is slidably connected to the slide groove 5816;

[0070] The cylinder seat 5814 is also fixedly connected to the cylinder rod of the telescopic cylinder 5815; the lower end of the telescopic cylinder 5815 is movably connected to the outer cylinder 582 via a rotating shaft.

[0071] By adopting the above technical solution, after defect detection or air tightness detection, the quality inspector will mark the defective part with a marker pen for defect repair in the subsequent process; for this purpose, after the detection is completed, the cylinder rod of the driving cylinder 5813 is extended, and the L-shaped connecting seat 5810 will drive the plug shaft 589 to slide along the arc groove 5811. Since the plug shaft 589 is eccentrically fixed to the driving gear 585, it can drive the driving gear 585 to rotate. At the same time, the driving gear 585 drives the meshing gear 586 installed on the driving shaft 587 to rotate, so that the flip block 588 clamped on the engine cylinder head drives the engine cylinder head to flip at a certain angle, thereby deflecting the bottom of the engine cylinder head to the outside, so that the quality inspector can mark the defective position at the bottom of the engine cylinder head.

[0072] As another explanation of this embodiment, when the cylinder rod of the telescopic cylinder 5815 is extended, the cylinder seat 5814 will drive the driving cylinder 5813 to move upward. Due to the gravity of the engine cylinder head, the driving shaft 5812 will automatically deflect, causing the engine cylinder head to deflect to a certain extent. At this time, the driving cylinder 5813 can use the telescopic cylinder rod to deflect the angle of the engine cylinder head to compensate for the angle.

[0073] For more details, please refer to the attached Figure 1-3 In this embodiment, the first frame body 2 and the second frame body 9 are connected by a fixing plate; an industrial computer 14 is fixed to one side of the upper end of the first frame body 2; a feeding conveyor 1 and a side conveyor 12 are provided on the outer side of the first frame body 2; a finished product conveyor 13 is provided at one end of the second frame body 9 away from the first frame body 2; and both ends of the guide rail 6 extend to the top of the first frame body 2 and the second frame body 9 respectively.

[0074] By adopting the above technical solution, the engine cylinder head transfer gripper 1 5 and the engine cylinder head transfer gripper 2 7 can be operated simultaneously, so as to facilitate the step-by-step inspection of the engine cylinder head, thereby improving the production efficiency of the engine cylinder head.

[0075] The processing technology of the engine cylinder head casting device comprises the following steps:

[0076] Step 1, making a wax mold, and then coating the surface of the wax mold with refractory material to form a shell; heating the wax mold to melt and flow out, and then pouring molten metal into the shell, and cooling and forming to obtain an engine cylinder head;

[0077] Step 2, grinding the cylinder head, installing the engine cylinder head on a grinding device, trimming the edge of the engine cylinder head, and grinding away burrs and excess material;

[0078] Step 3, defect detection of the engine cylinder head, transferring the engine cylinder head to the detection equipment, performing defect detection on the engine cylinder head, and checking whether there are defects such as cracks, sand holes, and pores on the surface of the cylinder head;

[0079] Step 4: Testing the sealing performance of the engine cylinder head. Press the engine cylinder head tightly into the equipment and test the sealing performance of the cylinder head after passing gas.

[0080] Please refer to the attached Figure 1-12 In the step 3, the defect detection of the engine cylinder head is to be transmitted to the outside of the first frame body 2 by the feeding conveyor 1, and the engine cylinder head is clamped by the engine cylinder head transfer clamp 5, and transferred to the top of the cylinder head fixing seat 3 for fixing, and then the engine cylinder head is clamped by the rotating pressing member 15; the rotating mechanism 4 drives the cylinder head fixing seat 3 to rotate, and multiple CCD cameras are set at the four corners of the inner side of the first frame body 2, and the engine cylinder head is inspected for defects by the CCD camera; the engine cylinder head with defects such as cracks, sand holes, and pores is removed and transmitted out through the side conveyor 12;

[0081] After the defect detection is completed, the engine cylinder head transfer clamp 1 5 and the engine cylinder head transfer clamp 2 7 move to the left side at the same time, the engine cylinder head transfer clamp 1 5 clamps a new engine cylinder head on the feeding conveyor 1, and the engine cylinder head transfer clamp 2 7 clamps the engine cylinder head above the cylinder head fixing seat 3, the engine cylinder head transfer clamp 1 5 and the engine cylinder head transfer clamp 2 7 move to the left side at the same time, the engine cylinder head transfer clamp 2 7 transfers the engine cylinder head after defect detection into the second frame body 9, and the clamping mechanism 16 is actuated to clamp the cylinder head on the cylinder head air tightness detection bottom mold 10; then, compressed gas is introduced into the cylinder head through the ventilation pipe 11. After a certain amount of gas is introduced, the valve is kept closed, left to stand for a period of time, and the sealing of the cylinder head is detected by a pressure gauge.

[0082] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. Casting device for engine cylinder head, Features: The invention comprises a first frame body (2) and a second frame body (9), wherein a guide rail (6) is installed on the top of the second frame body (9); the guide rail (6) is slidably connected with a first engine cylinder head transfer clamp (5) and a second engine cylinder head transfer clamp (7); wherein a rotary holding member (15) is installed on the first engine cylinder head transfer clamp (5); and a clamping mechanism (16) is installed on the second engine cylinder head transfer clamp (7); A cylinder head fixing seat (3) is provided below the engine cylinder head transfer clamp (5); the cylinder head fixing seat (3) is mounted on a rotating mechanism (4); the rotating mechanism (4) is fixed inside the first frame body (2); A cylinder head air tightness detection bottom mold (10) is provided below the second engine cylinder head transfer clamp (7); the cylinder head air tightness detection bottom mold (10) is fixedly installed on the top side of the air tightness detection box (8); A vent pipe (11) is installed at the bottom of the cylinder head air tightness detection bottom mold (10); a solenoid valve and a pressure gauge are connected in series to the vent pipe (11); The engine cylinder head transfer gripper 1 (5) and the engine cylinder head transfer gripper 2 (7) are of the same structure, both comprising a main beam (51), a slide rail (52) being fixed at the bottom of the main beam (51); slide seats (50) being slidably connected at both ends of the slide rail (52), and a driving frame (53) being mounted on each slide seat (50); a pushing cylinder (54) being mounted on the upper end of each driving frame (53); and the pushing cylinder (54) being fixed on the upper end of the main beam (51); A clamping and flipping assembly (58) is fixed below each driving frame (53); the two clamping and flipping assemblies (58) are symmetrically arranged.

2. The casting device for an engine cylinder head according to claim 1, Features: A hanging frame (55) is fixed at the middle position of the top of the main beam (51), and a gas control cabinet (56) is fixed on one side of the hanging frame (55); square channel steels (510) are fixed at both ends of the main beam (51), DC drive motors are respectively fixed inside the two ends of the square channel steels (510), and a driving wheel (59) is installed on the output shaft of the DC drive motor; the driving wheel (59) is installed in the guide groove on the inner side of the guide rail (6); a U-shaped frame (57) is fixed at the bottom of the main beam (51), and a rotating holding member (15) or a clamping mechanism (16) is installed on the U-shaped frame (57).

3. The casting device for the engine cylinder head according to claim 2, Features: The rotary holding member (15) comprises a first holding cylinder (151), which is fixed on the U-shaped frame (57), and its cylinder rod extends to the bottom of the U-shaped frame (57) and is matched with a seat bearing (152); the seat bearing (152) is fixed on the pressure plate (153).

4. The casting device for an engine cylinder head according to claim 2, Features: The clamping mechanism (16) comprises a second clamping cylinder (161), which is fixed on the U-shaped frame (57), and its cylinder rod passes through the bottom of the U-shaped frame (57) and is fixedly connected to the clamping plate (163); two guide rods are also fixed on the clamping plate (163), and the guide rods are slidably connected in the guide sleeve (162); the guide sleeve (162) is embedded and fixed with the U-shaped frame (57); the tops of the two guide rods are commonly connected to a connecting frame (164).

5. The casting device for an engine cylinder head according to claim 1, Features: The clamping and flipping assembly (58) comprises a connecting seat (581) fixedly mounted on the driving frame (53), and an outer cylinder (582) is fixed at the bottom of the connecting seat (581); a driving cylinder (5813) is arranged on the outer side of the outer cylinder (582), and the cylinder rod end of the driving cylinder (5813) is connected to an L-shaped connecting seat (5810); a shifting shaft (5812) is movable on the inner side of the L-shaped connecting seat (5810), and the shifting shaft (5812) passes through the inside of the n-shaped frame (584) through an arc groove (5811) and is fixed to the driving gear (585); the driving gear (585) is meshedly connected with the meshing gear (586); the meshing gear (586) is mounted on the driving shaft (587); The driving shaft (587) is transmission-connected to the n-shaped frame (584) via a bearing, and a turning block (588) is welded to the inner end of the driving shaft (587); an inserting shaft (589) is provided on the inner side of the turning block (588).

6. The casting device for the engine cylinder head according to claim 5, Features: The arc groove (5811) penetrates the n-shaped frame (584) transversely; an inner cylinder (583) is fixed to the upper end of the n-shaped frame (584), and the upper end of the inner cylinder (583) is slidably connected to the outer cylinder (582); a slide groove (5816) is transversely penetrated at the upper end of the outer cylinder (582); the upper end of the driving cylinder (5813) is movably connected to the cylinder seat (5814) via a rotating shaft; the cylinder seat (5814) penetrates the slide groove (5816) transversely and is slidably connected to the slide groove (5816); The cylinder seat (5814) is also fixedly connected to the cylinder rod of the telescopic cylinder (5815); the lower end of the telescopic cylinder (5815) is movably connected to the outer cylinder (582) via a rotating shaft.

7. The casting device for an engine cylinder head according to claim 1, Features: The first frame body (2) and the second frame body (9) are connected via a fixing plate; an industrial computer (14) is fixed to one side of the upper end of the first frame body (2); a feeding conveyor (1) and a side conveyor (12) are provided on the outer side of the first frame body (2); a finished product conveyor (13) is provided at one end of the second frame body (9) away from the first frame body (2); and both ends of the guide rail (6) extend to the top of the first frame body (2) and the second frame body (9), respectively.

8. The processing technology of the engine cylinder head casting device according to claim 7, Features: The following steps are involved: Step 1, making a wax mold, and then coating the surface of the wax mold with a refractory material to form a shell; Heat the wax model to melt and flow out. Then, the molten metal is poured into the shell, and after cooling and forming, the engine cylinder head is obtained; Step 2: Cylinder head grinding: Install the engine cylinder head on the grinding device and trim the edge of the engine cylinder head. And grind the burrs and excess materials; Step 3, defect detection of the engine cylinder head, transferring the engine cylinder head to the detection equipment, performing defect detection on the engine cylinder head, and checking whether there are defects such as cracks, sand holes, and pores on the surface of the cylinder head; Step 4: Testing the sealing performance of the engine cylinder head. Press the engine cylinder head tightly into the equipment and test the sealing performance of the cylinder head after passing gas. In the step 3, defect detection of the engine cylinder head is performed by transmitting the engine cylinder head to the outside of the first frame (2) through the feeding conveyor (1), clamping the engine cylinder head using the engine cylinder head transfer clamp (5), and transferring it to the top of the cylinder head fixing seat (3) for fixing, and then the engine cylinder head is clamped by the rotating pressing member (15); the rotating mechanism (4) drives the cylinder head fixing seat (3) to rotate, and multiple CCD cameras are arranged at the four corners of the inner side of the first frame (2), and the engine cylinder head is inspected for defects using the CCD cameras; the engine cylinder head with defects such as cracks, sand holes, and pores is removed and transmitted out through the side conveyor (12).

9. After the defect detection is completed, the engine cylinder head transfer gripper 1 (5) and the engine cylinder head transfer gripper 2 (7) move to the left at the same time, the engine cylinder head transfer gripper 1 (5) clamps a new engine cylinder head on the feeding conveyor (1), and the engine cylinder head transfer gripper 2 (7) clamps the engine cylinder head above the cylinder head fixing seat (3), the engine cylinder head transfer gripper 1 (5) and the engine cylinder head transfer gripper 2 (7) move to the left at the same time, and the engine cylinder head transfer gripper 2 (7) transfers the engine cylinder head after the defect detection into the second frame body (9), and the clamping mechanism (16) is activated to clamp the cylinder head onto the cylinder head air tightness detection bottom mold (10); then, compressed gas is introduced into the cylinder head through the ventilation pipe (11), and after a certain amount of gas is introduced, the valve is kept closed, and it is left to stand for a period of time, and the sealing of the cylinder head is detected by a pressure gauge.

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