A boring device and method for machining automobile engine cylinder head

Abstract

The present invention relates to the field of boring processing, specifically a boring device and method for processing automobile engine cylinder heads. It includes a frame, a boring mechanism, a tilt adjustment mechanism and a position adjustment structure; a cylinder head fixture is arranged on the frame; the boring mechanism includes a rotating table, a guide cylinder arranged on the rotating table and having a first slideway along the length direction, a slide cylinder slidably arranged at the first slideway and having a coaxially distributed internal thread, a screw cylinder threadedly connected to the slide cylinder at the internal thread and having a second slideway along the length direction, a first motor arranged on the rotating table and driving the screw cylinder to rotate forward and reversely, a moving rod slidably arranged at the second slideway and rotatably connected to the bottom end of the slide cylinder, and a boring assembly arranged at the bottom end of the moving rod; the tilt adjustment mechanism includes a rotating cover and a tilt adjustment assembly. The present invention can adjust the tilt angle of the boring assembly according to the tilt degree of the hole position on the cylinder head, can perform boring processing on holes with different tilt angles, and has a wide range of applications.

Description

Technical Field

[0001] The invention relates to the field of boring processing, and in particular to a boring device and method for processing a cylinder head of an automobile engine. Background Art

[0002] For the cylinder head of a car engine, it is installed on the top of the cylinder block, sealing the cylinder from the top and forming a combustion chamber. The overall structure of the cylinder head is roughly a rectangular parallelepiped, with complex details and a variety of holes, such as mounting holes and valve holes. The holes need to be bored by boring equipment to ensure the quality of the cylinder head.

[0003] Chinese patent announcement number CN213729493U discloses a boring device for automobile engine cylinder head processing, including a box, a bellows, a fan and a boring tool, and also includes a clamping structure for fixing cylinder heads of different sizes, a collecting structure for collecting debris and a fixing structure for quickly changing tools. A PLC controller is installed at the middle position of one side of the box, and a panel is installed at the lower end of the box. The clamping structure is slidably connected to both sides of the top of the panel. The collecting structure is installed at the middle position of the bottom end of the box. A pneumatic telescopic rod is installed at the top of the box, and a mounting plate is installed at the output end of the pneumatic telescopic rod. The device drives the rotating rod to rotate through the work of the fan, so that the lever continuously hits the lever plate, thereby pushing the pusher to overcome the elastic movement of the reset spring, and then drives the scraper to scrape the debris on the surface of the filter screen to the inside of the collection box for collection, completing the perfect collection of the debris.

[0004] However, the above technical solution has the following shortcomings:

[0005] The boring tool can move in the vertical direction to adjust to the boring processing position, but the boring tool is vertically distributed and can only bore vertical holes. For automobile engine cylinder heads, in addition to vertical holes, there are other inclined holes, such as valve holes, and the above equipment cannot bore inclined holes, so the scope of application is limited. Summary of the invention

[0006] The purpose of the present invention is to address the problems existing in the background technology and to propose a boring device and method for machining automobile engine cylinder heads, which can adjust the inclination angle of the boring assembly according to the inclination degree of the holes on the cylinder head, and can bore holes with different inclination angles, with high machining quality and a wide range of applications.

[0007] On the one hand, the present invention proposes a boring device for machining a cylinder head of an automobile engine, comprising a frame, a boring mechanism, a tilt adjustment mechanism and a position adjustment structure; a cylinder head clamp is arranged on the frame; the boring mechanism comprises a rotating table, a guide cylinder arranged on the rotating table and having a first slideway along the length direction, a slide cylinder slidably arranged at the first slideway and having a coaxially distributed internal thread, a screw cylinder threadedly connected to the slide cylinder at the internal thread and having a second slideway along the length direction, a first motor arranged on the rotating table and driving the screw cylinder to rotate forward and reversely, a moving rod slidably arranged at the second slideway and rotatably connected to the bottom end of the slide cylinder, and a boring assembly arranged at the bottom end of the moving rod, the moving rod, the screw cylinder, the slide cylinder and the guide cylinder are coaxially distributed from the inside to the outside; the tilt adjustment mechanism comprises a rotating cover and a tilt adjustment assembly arranged in the rotating cover and driving the rotating table to rotate to adjust the tilt angle of the boring assembly, the rotating table is rotatably arranged in the rotating cover, and the boring assembly rotates forward or backward according to the adjusted angle; the position adjustment mechanism is arranged on the frame, and is used to adjust the horizontal position of the rotating cover.

[0008] Preferably, a mounting sleeve is mounted on the lower part of the movable rod, a mounting groove is provided at the bottom of the slide cylinder, the mounting sleeve is located on the inner side of the mounting groove, a bearing is installed between the outer circumference of the mounting sleeve and the inner circumference of the mounting groove, and a fixing plate is detachably connected to the bottom end of the slide cylinder, and the fixing plate has a movable channel for the movable rod to move.

[0009] Preferably, the boring assembly includes a connecting plate arranged at the bottom end of the moving rod, a mounting cover arranged at the bottom of the connecting plate, a sliding column arranged on the mounting cover and sliding radially along the connecting plate, a first screw rod threadedly connected to the sliding column, a sixth motor arranged in the mounting cover and driving the first screw rod to rotate forward and reversely, and a boring tool arranged at the outer end of the sliding column.

[0010] Preferably, the upper surface of the connecting plate has a coaxially distributed annular liquid groove, the bottom of the fixed plate is detachably connected to a fixing ring, the fixing ring has a liquid inlet hole, the liquid inlet hole is connected to a liquid inlet pipe, the fixing ring rotating seal is arranged on the upper part of the liquid groove, and the bottom of the connecting plate is provided with a liquid outlet pipe connected to the bottom of the liquid groove, and the liquid outlet of the liquid outlet pipe faces the boring tool.

[0011] Preferably, the cylinder head clamp includes a placement seat with a rectangular frame structure and two groups of clamping assemblies respectively arranged on the adjacent two side surfaces of the placement seat, the inner bottom of the placement seat is provided with a supporting step, the inner side of the supporting step is a blanking channel, the clamping assembly includes a clamping plate located on the inner side of the placement seat, a sliding rod connected to the clamping plate and slidingly arranged on the placement seat, and a threaded knob threadedly connected to the placement seat and rotatably connected to the clamping plate at one end.

[0012] Preferably, a liquid receiving tank is provided at the lower part of the frame, a filter screen is provided inside the liquid receiving tank, and the filter screen is located below the material dropping channel. A pump is provided on the frame, the pump input end is connected to the lower part of the liquid receiving tank, and the pump output end is connected to the liquid inlet pipe.

[0013] Preferably, the tilt adjustment assembly includes a second motor arranged in a rotating cover, a first worm rotatably arranged in the rotating cover and connected to the output end of the second motor, and a first worm wheel meshingly connected to the first worm, and the first worm wheel is coaxially connected to the rotating table; the bottom of the rotating cover is an arc-shaped cover-like structure, and the arc-shaped cover-like structure has an arc-shaped channel, the arc-shaped cover-like structure is distributed around the central axis of rotation of the rotating table, an arc-shaped plate is arranged on the outer periphery of the guide cylinder, the outer side surface of the arc-shaped plate contacts the inner side surface of the arc-shaped structure at the bottom of the rotating cover, and the guide cylinder passes through the arc-shaped channel.

[0014] Preferably, the position adjustment mechanism includes a moving seat, a mounting shell arranged at the bottom of the moving seat, a third motor arranged on the moving seat, a second worm connected to the output end of the third motor, a second worm wheel meshingly connected to the second worm, a rotating shaft rotatably arranged on the mounting shell and coaxially mounted with the second worm wheel, a first gear coaxially mounted on the rotating shaft, a second gear meshingly connected to the first gear, a mounting shaft rotatably arranged on the mounting shell and coaxially mounted with the second gear, and a moving mechanism that drives the moving seat to move in a horizontal plane, and the bottom end of the mounting shaft is connected to the top of the rotating cover.

[0015] On the other hand, the present invention provides a boring method for machining a cylinder head of an automobile engine, which is implemented by the above-mentioned boring device for machining a cylinder head of an automobile engine. The method comprises the following steps:

[0016] S1. Clamp the automobile engine cylinder head to be bored onto the cylinder head fixture;

[0017] S2. adjusting the inclination angle of the boring assembly according to the inclination angle of the hole to be bored;

[0018] S3, adjusting the horizontal position of the rotating cover through the position adjustment mechanism, that is, adjusting the boring assembly to the target position, and the boring assembly is in the processing orientation of the hole;

[0019] S4, the first motor drives the screw barrel to rotate, the screw barrel drives the slide barrel to move, and drives the moving rod to rotate, the slide barrel gradually slides out of the guide barrel, and drives the moving rod to move, the moving rod drives the boring assembly to move, the boring assembly has a compound movement of rotation and linear movement, and the boring assembly performs a boring process on the hole on the cylinder head during the screwing process;

[0020] S5. After the boring assembly completes boring of the hole, the first motor drives the screw barrel to reverse, and the boring assembly rotates out of the hole;

[0021] S6. Repeat steps S2-S5 to perform boring processing on the remaining holes to be bored.

[0022] Compared with the prior art, the present invention has the following beneficial technical effects:

[0023] The invention can adjust the inclination angle of the boring assembly according to the inclination degree of the hole position on the cylinder head, can perform boring processing on holes with different inclination angles, has high processing quality and a wide range of applications, and after the boring mechanism is adjusted to the processing position, according to the inclination angle of the hole to be processed, the boring assembly can perform boring processing on the hole on the cylinder head of the automobile engine during the screwing process, the overall structure of the boring mechanism is compact, and can perform boring processing on holes with different inclination angles at different positions on the same cylinder head by adjusting the position and angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0025] Figure 2 A schematic diagram of a partial structure for adjusting the horizontal position of a mounting shell according to an embodiment of the present invention;

[0026] Figure 3 It is a partial structural cross-sectional view of the feeding and rotation principle of the boring tool;

[0027] Figure 4 for Figure 3 A magnified view of the structure at center A;

[0028] Figure 5 for Figure 3 A magnified view of the structure at B in the middle;

[0029] Figure 6 This is a partial structural cross-sectional view of the orientation adjustment principle of the guide cylinder.

[0030] Figure numerals: 1, frame; 2, placement seat; 3, clamping plate; 4, threaded knob; 5, sliding rod; 6, rotating cover; 7, rotating table; 8, guide cylinder; 9, arc plate; 10, first motor; 11, screw cylinder; 12, sliding cylinder; 13, moving rod; 14, mounting sleeve; 15, bearing; 16, fixing plate; 17, connecting plate; 171, liquid channel; 18, fixing ring; 19, liquid inlet pipe; 20, liquid outlet pipe; 21, mounting cover; 22, sixth motor; 23, first screw rod; 24, sliding column; 2 5. Boring tool; 26. Second motor; 27. First worm; 28. First worm wheel; 29. ​​Mounting shell; 30. Moving seat; 31. Third motor; 32. Second worm; 33. Second worm wheel; 34. Rotating shaft; 35. First gear; 36. Second gear; 37. Mounting shaft; 38. Moving frame; 39. Fourth motor; 40. Second screw; 41. First guide rod; 42. Fifth motor; 43. Third screw; 44. Second guide rod; 45. Liquid collecting tank; 46. Filter; 47. Pump. DETAILED DESCRIPTION

[0031] Embodiment 1, as Figure 1-Figure 6As shown, the present embodiment provides a boring device for machining a cylinder head of an automobile engine, comprising a frame 1, a boring mechanism, a tilt adjustment mechanism and a position adjustment structure.

[0032] like Figure 1 and Figure 2 As shown, a cylinder head clamp is provided on the frame 1 for clamping the cylinder head of the automobile engine. The cylinder head clamp includes a placement seat 2 of a rectangular frame structure and two sets of clamping assemblies respectively arranged on the adjacent two side surfaces of the placement seat 2. The placement seat 2 has a supporting step at the bottom inside, and the supporting step can support the cylinder head placed inside the placement seat 2. The inside of the supporting step is a blanking channel, and the debris generated by boring can fall through the blanking channel. The clamping assembly includes a clamping plate 3 located inside the placement seat 2, a slide bar 5 connected to the clamping plate 3 and slidingly arranged on the placement seat 2, and a threaded knob 4 threadedly connected to the placement seat 2 and rotatably connected to the clamping plate 3 at one end. The clamping plate 3 can be driven to move by rotating the threaded knob 4, and the slide bar 5 guides the clamping plate 3 so that the clamping plate 3 moves in the horizontal direction and presses against the side of the cylinder head. When placing the cylinder head of the automobile engine, the two sides of the cylinder head are respectively attached to the adjacent two side surfaces inside the placement seat 2, and then a set of clamping assemblies are used on each of the other two sides of the placement seat 2 to press against the remaining two sides of the cylinder head. The bottom of the cylinder head is supported by the supporting steps from at least three sides, such as the front, rear and left sides. At this time, even if the right side of the supporting steps does not support the cylinder head, the cylinder head is in a stable supported state, and the cylinder head is pressed tightly by the clamping components on the front and right sides. The bottom of the cylinder head can also be supported by the supporting steps from the left, rear and right sides, or the supporting steps on the front, rear, left and right sides all support the cylinder head. In other words, for a conventional automobile engine cylinder head with a generally rectangular bottom, at least three sides of the rectangle are on the supporting steps.

[0033] like Figure 3 and Figure 4 As shown, the boring mechanism includes a rotating table 7, a guide cylinder 8 disposed on the rotating table 7 and having a first slideway along the length direction, a slide cylinder 12 slidably disposed at the first slideway and having coaxially distributed internal threads, a screw cylinder 11 threadedly connected to the slide cylinder 12 at the internal threads and having a second slideway along the length direction, a first motor 10 disposed on the rotating table 7 and driving the screw cylinder 11 to rotate forward and reversely, a moving rod 13 slidably disposed at the second slideway and rotatably connected to the bottom end of the slide cylinder 12, and a boring assembly disposed at the bottom end of the moving rod 13. The slide cylinder 12 is slidably clamped at the first slideway, and the moving rod 13 is slidably clamped at the second slideway. The moving rod 13, the screw cylinder 11, the slide cylinder 12 and the guide cylinder 8 are coaxially distributed from the inside to the outside. The guide cylinder 8 guides the slide cylinder 12 to move linearly. The screw barrel 11 can drive the moving rod 13 to rotate, and the guide barrel 8 can drive the moving rod 13 to move, so that the moving rod 13 can rotate forward or backward. When rotating forward, boring processing can be directly performed through the boring assembly.

[0034] like Figure 5As shown, for the rotation connection between the slide 12 and the moving rod 13, the lower part of the moving rod 13 is sleeved with a mounting sleeve 14, the bottom of the slide 12 has a mounting groove, the mounting sleeve 14 is located inside the mounting groove, and a bearing 15 is installed between the outer circumference of the mounting sleeve 14 and the inner circumference of the mounting groove. The bearing 15 is used to ensure the smooth rotation of the moving rod 13 and the mounting sleeve 14. At the same time, the bearing 15 can also be driven by the slide 12, thereby driving the moving rod 13 to move through the mounting sleeve 14. The bottom end of the slide 12 is detachably connected with a fixing plate 16, and the fixing plate 16 has a movable channel for the moving rod 13 to move. The fixing plate 16 has a plurality of through holes, and the bottom end of the slide 12 has threaded holes corresponding to the through holes. Bolts are inserted into the through holes and tightened in the threaded holes, so that the fixing plate 16 can be securely installed. The fixing plate 16 blocks the outside of the mounting sleeve 14 and the bearing 15, which can prevent the mounting sleeve 14 and the bearing 15 from falling off.

[0035] like Figure 3 and Figure 6 As shown, the tilt adjustment mechanism includes a rotating cover 6 and a tilt adjustment assembly arranged in the rotating cover 6 and driving the rotating table 7 to rotate to adjust the tilt angle of the boring assembly, and the rotating table 7 is rotatably arranged in the rotating cover 6. The boring assembly rotates forward or backward according to the adjusted angle, integrating the rotational motion and the feed motion, and directly performs boring processing when rotating forward. The tilt adjustment assembly includes a second motor 26 arranged in the rotating cover 6, a first worm 27 rotatably arranged in the rotating cover 6 and connected to the output end of the second motor 26, and a first worm wheel 28 meshingly connected to the first worm 27, and the first worm wheel 28 is coaxially connected to the rotating table 7. The second motor 26 can drive the first worm 27 to rotate, the first worm 27 drives the first worm wheel 28 to rotate, and the first worm wheel 28 drives the rotating table 7 to rotate, and the meshing connection between the first worm 27 and the first worm wheel 28 is self-locking.

[0036] When the rotating table 7 rotates, the guide cylinder 8 will also rotate. In order to provide shielding protection for the second motor 26, the first worm 27, the first worm gear 28, the rotating table 7 and the first motor 10 inside the rotating cover 6, the following design is performed: the bottom of the rotating cover 6 is an arc-shaped cover-like structure, and the arc-shaped cover-like structure has an arc-shaped channel, and the arc-shaped cover-like structure is distributed around the central axis of rotation of the rotating table 7. An arc-shaped plate 9 is arranged on the outer periphery of the guide cylinder 8, and the outer side surface of the arc-shaped plate 9 contacts the inner side surface of the arc-shaped structure at the bottom of the rotating cover 6, and the guide cylinder 8 passes through the arc-shaped channel.

[0037] When the rotating table 7 drives the guide cylinder 8 to rotate, the guide cylinder 8 drives the arc plate 9 to rotate. The arc plate 9 keeps in contact with the inner side of the arc cover structure. The arc plate 9 blocks the arc channel. Under the premise of not hindering the rotation of the guide cylinder 8, it prevents the debris generated when the boring assembly is boring a hole from splashing onto the inside of the rotating cover 6.

[0038] like Figure 1 , Figure 2 and Figure 6 As shown, the position adjustment mechanism is arranged on the frame 1, and is used to adjust the horizontal position of the rotating cover 6. Specifically, the position adjustment mechanism includes a moving seat 30, a mounting shell 29 arranged at the bottom of the moving seat 30, a third motor 31 arranged on the moving seat 30, a second worm 32 connected to the output end of the third motor 31, a second worm gear 33 meshingly connected to the second worm 32, a rotating shaft 34 rotatably arranged on the mounting shell 29 and coaxially mounted with the second worm gear 33, a first gear 35 coaxially mounted on the rotating shaft 34, a second gear 36 meshingly connected with the first gear 35, a mounting shaft 37 rotatably arranged on the mounting shell 29 and coaxially mounted with the second gear 36, and a moving mechanism that drives the moving seat 30 to move in a horizontal plane, and the bottom end of the mounting shaft 37 is connected to the top of the rotating cover 6. The third motor 31 can drive the second worm 32 to rotate forward and reversely, the second worm 32 drives the second worm wheel 33 to rotate, the second worm wheel 33 drives the first gear 35 to rotate through the rotating shaft 34, and the first gear 35 drives the rotating cover 6 to rotate through the second gear 36 and the mounting shaft 37, so as to adjust the horizontal position of the rotating cover 6, and then adjust the horizontal position of the boring assembly. The threaded connection between the second worm 32 and the second worm wheel 33 is self-locking, and the stability of the position can be maintained after the position adjustment is completed.

[0039] like Figure 1 and Figure 2 As shown, the moving mechanism drives the moving seat 30 to move in the horizontal plane by adjusting in two vertical directions in the horizontal plane. The moving mechanism includes a fifth motor 42 arranged on the frame 1, a third screw rod 43 arranged horizontally and rotatably on the frame 1 and connected to the output end of the fifth motor 42, a second guide rod 44 arranged on the frame 1 and parallel to the third screw rod 43, a moving frame 38 threadedly connected to the third screw rod 43 and slidably connected to the second guide rod 44, a fourth motor 39 arranged on the moving frame 38, a second screw rod 40 rotatably arranged on the moving frame 38 and connected to the output end of the fourth motor 39, and a first guide rod 41 arranged on the moving frame 38 and parallel to the second screw rod 40, the second screw rod 40 is threadedly connected to the moving seat 30, and the moving seat 30 is slidably arranged on the first guide rod 41. The first guide rod 41 and the second guide rod 44 are perpendicular. The second screw rod 40 can be driven to rotate forward and reversely by the fourth motor 39, so that the moving seat 30 moves linearly in one direction in the horizontal plane. The third screw rod 43 can be driven to rotate forward and reversely by the fifth motor 42, so that the moving frame 38 can move linearly in another vertical direction in the horizontal plane. In summary, the moving seat 30 can be moved in the horizontal plane, and finally the boring assembly is adjusted to the target position to perform boring processing on the target hole position on the cylinder head of the automobile engine.

[0040] The above-mentioned boring method based on the boring equipment for machining the automobile engine cylinder head comprises the following steps:

[0041] S1. Clamping the automobile engine cylinder head to be bored onto a cylinder head fixture, wherein the cylinder head is a common cylinder head having a substantially rectangular parallelepiped structure;

[0042] S2. According to the inclination angle of the hole to be bored, the inclination angle of the boring assembly is adjusted accordingly. For inclined valve holes and other holes, boring processing needs to be performed along the inclination direction. For vertically distributed holes, the boring assembly is adjusted to a vertical state.

[0043] S3, adjusting the horizontal position of the rotating cover 6 by the position adjustment mechanism, that is, adjusting the boring assembly to the target position, and the boring assembly is in the processing orientation of the hole;

[0044] S4, the first motor 10 drives the screw barrel 11 to rotate, the screw barrel 11 drives the slide barrel 12 to move, and drives the moving rod 13 to rotate, the slide barrel 12 gradually slides out of the guide barrel 8, and drives the moving rod 13 to move, and the moving rod 13 drives the boring assembly to move, the boring assembly has a compound movement of both rotation and linear movement, and the boring assembly performs a boring process on the hole on the cylinder head, that is, the cylinder head is bored during the screwing process;

[0045] S5, after the boring assembly has completed boring the hole, the first motor 10 drives the screw barrel 11 to reverse, and the boring assembly is rotated out of the hole;

[0046] S6. Repeat steps S2-S5 to perform boring processing on the remaining holes to be bored, so that the holes with different inclination angles on the cylinder head can be bored.

[0047] This embodiment can adjust the inclination angle of the boring assembly according to the inclination degree of the hole position on the cylinder head, can perform boring processing on holes with different inclination angles, has high processing quality and a wide range of applications, and after the boring mechanism is adjusted to the processing position, according to the inclination angle of the hole to be processed, the boring assembly can perform boring processing on the hole on the cylinder head of the automobile engine during the screwing process, and the overall structure of the boring mechanism is compact, and after processing a hole, the boring mechanism can be retracted. After the boring mechanism is adjusted to another processing position, it can be extended again and processed again through the boring assembly, so that holes at different positions on the same cylinder head can be bored.

[0048] Embodiment 2, as Figure 1-Figure 6As shown, the present embodiment proposes a boring device for machining a cylinder head of an automobile engine. Compared with the first embodiment, in the present embodiment, the boring assembly includes a connecting plate 17 arranged at the bottom end of the moving rod 13, a mounting cover 21 arranged at the bottom of the connecting plate 17, a slide post 24 arranged on the mounting cover 21 and sliding radially along the connecting plate 17, a first screw rod 23 threadedly connected to the slide post 24, a sixth motor 22 arranged in the mounting cover 21 and driving the first screw rod 23 to rotate forward and reversely, and a boring tool 25 arranged at the outer end of the slide post 24. The sixth motor 22 can drive the first screw rod 23 to rotate forward and reversely, the first screw rod 23 drives the slide post 24 to move linearly, the slide post 24 moves along the radial direction of the connecting plate 17, and the boring tool 25 moves with the slide post 24. When the boring tool 25 moves to be coaxially distributed with the moving rod 13, the hole corresponding to the size of the boring tool 25 on the cylinder head can be processed by screwing the boring tool 25 in. When the boring tool 25 is moved to be parallel to the central axis of the moving rod 13, a larger hole on the cylinder head can be processed by screwing the boring tool 25 in, and the boring tool 25 performs boring processing on the inner wall of the larger hole.

[0049] This embodiment can bore holes of different diameters on the cylinder head by adjusting the position of the boring tool 25, has a wide range of applications and is flexible to use. For holes of different diameters on the cylinder head, there is no need to replace boring tools 25 of other specifications, and only one boring tool 25 can be used to bore holes of different diameters and inclination angles.

[0050] Embodiment three, as Figure 1-Figure 6 As shown, this embodiment proposes a boring device for machining automobile engine cylinder heads. Compared with the second embodiment, in this embodiment, the upper surface of the connecting plate 17 has a coaxially distributed annular liquid groove 171, and the bottom of the fixing plate 16 is detachably connected with a fixing ring 18, which is specifically threadedly connected by bolts. The fixing ring 18 has a liquid inlet hole, and the liquid inlet hole is connected to a liquid inlet pipe 19. By conveying cutting fluid to the liquid inlet pipe 19, the cutting fluid enters the liquid groove 171 from the liquid inlet pipe 19 and the liquid inlet hole. The fixing ring 18 is rotatably sealed and arranged at the upper part of the liquid groove 171. The bottom of the connecting plate 17 is provided with a liquid outlet pipe 20 connected to the bottom of the liquid groove 171, and the liquid outlet of the liquid outlet pipe 20 faces the boring tool 25. When boring the cylinder head, the connecting plate 17 is rotated in with the moving rod 13, and the fixed plate 16 and the fixed ring 18 only have linear movement. The fixed ring 18 and the connecting plate 17 are rotationally sealed and connected. The cutting fluid will flow from the liquid groove 171 to the liquid outlet pipe 20, and spray out from the liquid outlet of the liquid outlet pipe 20 to the boring tool 25, so as to cool and lubricate the boring process, protect the boring tool 25, ensure the boring quality, and flush out the boring chips.

[0051] A liquid receiving tank 45 is provided at the lower part of the frame 1, and a filter screen 46 is provided inside the liquid receiving tank 45. The filter screen 46 is located below the material dropping channel. A pump 47 is provided on the frame 1, and the input end of the pump 47 is connected to the lower part of the liquid receiving tank 45, and the output end of the pump 47 is connected to the liquid inlet pipe 19. The cutting fluid washes away the debris generated by boring, and the debris and the cutting fluid fall onto the filter screen 46. The debris is intercepted by the filter screen 46, and the cutting fluid continues to fall into the liquid receiving tank 45. The filtered cutting fluid is re-delivered to the liquid inlet pipe 19 through the pipeline by the pump 47, and is re-sprayed from the liquid outlet of the liquid outlet pipe 20 to realize the recycling of the cutting fluid. As for the infusion pipeline between the pump 47 and the liquid inlet pipe 19, a hose is used and a drag chain is added to the frame 1, which is similar to the drag chain used for passing traction and protection cables on existing machine tools. The infusion pipeline is passed through the inside of the drag chain. As the liquid inlet pipe 19 moves, the drag chain will also move to ensure that the inner infusion pipeline can effectively transport cutting fluid to the liquid inlet pipe 19.

[0052] This embodiment can spray the cutting fluid onto the boring tool 25 to cool and lubricate the boring process, and filter the cutting fluid mixed with boring chips, and pump the filtered cutting fluid back to the liquid outlet pipe 20 to be reused for cooling and lubrication in the boring process, thereby realizing the recycling of the cutting fluid and saving costs.

[0053] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A boring device for machining automobile engine cylinder heads, characterized in that: include: A frame (1) on which a cylinder head clamp is arranged; The boring mechanism comprises a rotating table (7), a guide cylinder (8) arranged on the rotating table (7) and having a first slideway along the length direction, a slide cylinder (12) slidably arranged at the first slideway and having coaxially distributed internal threads, a screw cylinder (11) threadedly connected to the slide cylinder (12) at the internal threads and having a second slideway along the length direction, a first motor (10) arranged on the rotating table (7) and driving the screw cylinder (11) to rotate forward and reversely, a moving rod (13) slidably arranged at the second slideway and rotatably connected to the bottom end of the slide cylinder (12), and a boring assembly arranged at the bottom end of the moving rod (13), wherein the moving rod (13), the screw cylinder (11), the slide cylinder (12) and the guide cylinder (8) are coaxially distributed from the inside to the outside, and the bottom end of the slide cylinder (12) is detachably connected to a fixing plate (16). The component comprises a connecting plate (17) arranged at the bottom end of the moving rod (13), a mounting cover (21) arranged at the bottom of the connecting plate (17), a sliding column (24) arranged on the mounting cover (21) and slidingly arranged along the radial direction of the connecting plate (17), and a boring tool (25) arranged at the outer end of the sliding column (24); the upper surface of the connecting plate (17) has a coaxially distributed annular liquid-passing groove (171); the bottom of the fixing plate (16) is detachably connected to a fixing ring (18); the fixing ring (18) has a liquid inlet hole, and the liquid inlet hole is connected to a liquid inlet pipe (19); the fixing ring (18) is rotatably sealed and arranged at the upper part of the liquid-passing groove (171); the bottom of the connecting plate (17) is provided with a liquid outlet pipe (20) connected to the bottom of the liquid-passing groove (171); the liquid outlet of the liquid outlet pipe (20) faces the boring tool (25); The tilt adjustment mechanism comprises a rotating cover (6) and a tilt adjustment component which is arranged in the rotating cover (6) and drives a rotating table (7) to rotate so as to adjust the tilt angle of the boring assembly, wherein the rotating table (7) is rotatably arranged in the rotating cover (6), and the boring assembly rotates forward or backward according to the adjusted angle; A position adjustment mechanism is arranged on the frame (1) and is used to adjust the horizontal position of the rotating cover (6).

2. The boring equipment for automobile engine cylinder head machining according to claim 1 is characterized in that: The lower part of the moving rod (13) is sleeved with a mounting sleeve (14), the bottom of the slide cylinder (12) is provided with a mounting groove, the mounting sleeve (14) is located inside the mounting groove, a bearing (15) is installed between the outer circumference of the mounting sleeve (14) and the inner circumference of the mounting groove, and the fixing plate (16) has a movable channel for the moving rod (13) to move.

3. The boring equipment for automobile engine cylinder head machining according to claim 2 is characterized in that: The boring assembly also includes a first screw rod (23) threadedly connected to the slide column (24), and a sixth motor (22) disposed in the mounting cover (21) and driving the first screw rod (23) to rotate forward and reverse.

4. The boring equipment for machining automobile engine cylinder heads according to claim 3 is characterized in that: The cylinder head clamp comprises a placement seat (2) of a rectangular frame structure and two sets of clamping assemblies respectively arranged on adjacent two side surfaces of the placement seat (2); the placement seat (2) has a supporting step at the bottom inner side, and the inner side of the supporting step is a material dropping channel; the clamping assembly comprises a clamping plate (3) located on the inner side of the placement seat (2), a sliding rod (5) connected to the clamping plate (3) and slidably arranged on the placement seat (2), and a threaded knob (4) threadedly connected to the placement seat (2) and one end of which is rotatably connected to the clamping plate (3).

5. The boring equipment for machining automobile engine cylinder heads according to claim 4, characterized in that: A liquid receiving tank (45) is provided at the lower part of the frame (1), a filter screen (46) is provided inside the liquid receiving tank (45), and the filter screen (46) is located below the material dropping channel. A pump (47) is provided on the frame (1), an input end of the pump (47) is connected to the lower part of the liquid receiving tank (45), and an output end of the pump (47) is connected to the liquid inlet pipe (19).

6. The boring equipment for machining automobile engine cylinder heads according to claim 1, characterized in that: The tilt adjustment assembly comprises a second motor (26) arranged in a rotating cover (6), a first worm (27) rotatably arranged in the rotating cover (6) and connected to the output end of the second motor (26), and a first worm wheel (28) meshingly connected to the first worm (27), wherein the first worm wheel (28) is coaxially connected to the rotating table (7); the bottom of the rotating cover (6) is an arc-shaped cover-like structure, and the arc-shaped cover-like structure has an arc-shaped channel, and the arc-shaped cover-like structure is distributed around the central axis of rotation of the rotating table (7); an arc-shaped plate (9) is arranged on the outer periphery of the guide cylinder (8), the outer side surface of the arc-shaped plate (9) contacts the inner side surface of the arc-shaped cover-like structure at the bottom of the rotating cover (6), and the guide cylinder (8) passes through the arc-shaped channel.

7. The boring equipment for machining automobile engine cylinder heads according to claim 1, characterized in that: The position adjustment mechanism comprises a moving seat (30), a mounting shell (29) arranged at the bottom of the moving seat (30), a third motor (31) arranged on the moving seat (30), a second worm (32) connected to the output end of the third motor (31), a second worm gear (33) meshingly connected to the second worm (32), a rotating shaft (34) rotatably arranged on the mounting shell (29) and coaxially mounted with the second worm gear (33), a first gear (35) coaxially mounted on the rotating shaft (34), a second gear (36) meshingly connected with the first gear (35), a mounting shaft (37) rotatably arranged on the mounting shell (29) and coaxially mounted with the second gear (36), and a moving mechanism for driving the moving seat (30) to move in a horizontal plane, wherein the bottom end of the mounting shaft (37) is connected to the top of the rotating cover (6).

8. A boring method for machining a cylinder head of an automobile engine, implemented by the boring device for machining a cylinder head of an automobile engine according to claim 1, characterized in that: The method comprises the following steps: S1. Clamp the automobile engine cylinder head to be bored onto the cylinder head fixture; S2. adjusting the inclination angle of the boring assembly according to the inclination angle of the hole to be bored; S3, adjusting the horizontal position of the rotating cover (6) by means of the position adjustment mechanism, that is, adjusting the boring assembly to the target position, so that the boring assembly is in the processing orientation of the hole; S4, the first motor (10) drives the screw barrel (11) to rotate, the screw barrel (11) drives the slide barrel (12) to move, and drives the moving rod (13) to rotate, the slide barrel (12) gradually slides out of the guide barrel (8), and drives the moving rod (13) to move, the moving rod (13) drives the boring assembly to move, the boring assembly has a composite movement of rotation and linear movement, and the boring assembly performs a boring process on the hole on the cylinder head during the screwing process; S5, after the boring assembly has completed boring the hole, the first motor (10) drives the screw barrel (11) to reverse, and the boring assembly is rotated out of the hole; S6. Repeat steps S2-S5 to perform boring processing on the remaining holes to be bored.

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