A cylinder head deep hole drilling tool and deep hole drilling processing device

Abstract

The present invention belongs to the technical field of cylinder head processing equipment, and provides a cylinder head deep hole drilling tool and a deep hole drilling processing device. The cylinder head deep hole drilling tool comprises a tool base, a support plate driven by a driving device is provided above the tool base, a slideway for conveying the cylinder head and a guide plate for sliding and guiding the cylinder head are provided on the support plate; a baffle plate and a drill sleeve are provided at one end of the tool base, and a plurality of positioning pins for positioning the cylinder head, a support platform for supporting the cylinder head and a clamping mechanism for fixing the cylinder head are provided at the top, and when one end of the cylinder head is in a state of abutting against the baffle plate, the positioning pins are arranged corresponding to the positioning holes on the cylinder head. The present invention realizes the positioning and fixing of the cylinder head through the cylinder head deep hole drilling tool, and the clamping operation is simple and convenient, saving time and effort, and the positioning and clamping of the cylinder head are accurate and firm, which provides a reliable guarantee for realizing the precise drilling of the oil channel hole of the cylinder head, and the processing quality and use performance of the cylinder head are greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of cylinder head processing equipment, and in particular to a cylinder head deep hole drilling tool and a deep hole drilling processing device. Background Art

[0002] The cylinder head is a box-shaped part with a complex structure. It is processed with intake and exhaust valve seat holes, valve guide holes, spark plug mounting holes (gasoline engines) or injector mounting holes, etc.; the cylinder head is also cast with a water jacket, intake and exhaust ducts and a combustion chamber or part of a combustion chamber. The function of the cylinder head is to seal the cylinder, form a combustion space together with the piston, and withstand the effects of high-temperature and high-pressure gas. The cylinder head is subjected to gas force and mechanical loads caused by tightening the cylinder bolts. At the same time, it is also subjected to high thermal loads due to contact with high-temperature gas.

[0003] During the processing of the cylinder head, the processing of the oil channel hole is very important and directly affects the quality of the cylinder head. At present, the processing of the oil channel hole of the cylinder head is usually completed manually on a drilling machine, and multiple clamping and positioning are required on the drilling machine (after drilling one end of the cylinder head, the drilling of the other end is completed). The labor intensity is high, the processing efficiency is low, and the deep hole processing is difficult. When drilling the oil channel hole of each cylinder head, multiple clamping is difficult to ensure the positioning accuracy of the cylinder head, and the drilling accuracy of the cylinder head cannot be guaranteed, which ultimately affects the processing quality and performance of the cylinder head. Therefore, the development of a cylinder head deep hole drilling tool and deep hole drilling processing device not only has urgent research value, but also has good economic benefits and industrial application potential, which is the driving force and basis for the completion of the present invention. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the inventors conducted in-depth research and completed the present invention after paying a lot of creative work.

[0005] Specifically, the technical problem to be solved by the present invention is to provide a cylinder head deep hole drilling tool and a deep hole drilling processing device to solve the technical problems of high labor intensity, low processing efficiency and low drilling accuracy in the current cylinder head oil channel hole drilling.

[0006] In order to solve the above technical problems, the technical solution of the present invention is:

[0007] A deep hole drilling tool for a cylinder head comprises a tool base, a support plate driven by a driving device is arranged above the tool base, a slideway for conveying the cylinder head and a guide plate for guiding the sliding of the cylinder head are arranged on the support plate;

[0008] A baffle and a drill sleeve are provided at one end of the tooling base, and a plurality of positioning pins for positioning the cylinder head, a support platform for supporting the cylinder head, and a clamping mechanism for fixing the cylinder head are provided on the top of the tooling base. When one end of the cylinder head is in a state of abutting against the baffle, the positioning pins are arranged corresponding to the positioning holes on the cylinder head.

[0009] As an improved technical solution, the driving device includes a lifting cylinder, which is fixedly mounted on the tooling base and located in the middle of the tooling base, and the top end of the piston shaft of the lifting cylinder is fixedly connected to the support plate.

[0010] As an improved technical solution, a parallel mounting plate is fixedly mounted on the support plate, a plurality of rollers are rotatably mounted on the mounting plate, and the plurality of rollers are evenly arranged on the mounting plate to form the slideway.

[0011] As an improved technical solution, the guide plate is arranged parallel to the slide, and three guide plates are provided, one of which is fixedly installed on the edge of one side of the support plate, and the other two guide plates are fixedly installed on the edge of the other side of the support plate, and the spacing between them and the guide plates installed on one side is different.

[0012] As an improved technical solution, the locating pin includes a cylindrical locating pin and a diamond locating pin, and the cylindrical locating pin and the diamond locating pin are respectively arranged at two ends of the tooling base.

[0013] As an improved technical solution, the support platforms are respectively located at two ends of the top of the tooling base, and airtight detection holes connected to the air supply system are opened on the support platforms.

[0014] As an improved technical solution, a drill sleeve mounting seat is fixedly mounted on one end of the tooling base, and the drill sleeve is fixedly mounted on the drill sleeve mounting seat.

[0015] As an improved technical solution, the clamping mechanism is respectively arranged at the four corner positions of the top of the tooling base, and the clamping mechanism includes a hydraulic cylinder fixedly installed on the tooling base, and a pressure claw is hingedly installed on the end of the piston shaft of the hydraulic cylinder, and a fixed block is fixedly installed on the hydraulic cylinder. A connecting rod is provided between the fixed block and the pressure claw, and the two ends of the connecting rod are respectively hingedly connected to the pressure claw and the fixed block, and the hinge point with the pressure claw is located in the middle position of the pressure claw.

[0016] As an improved technical solution, a plurality of chip leakage holes are provided on the support plate, and the tooling base is a shell structure having two inclined chip guiding surfaces and a trapezoidal cross section.

[0017] The present invention also discloses a cylinder head deep hole drilling processing device, including a drilling machine and also including the cylinder head deep hole drilling tool as described above, the drilling machine has two drilling devices arranged side by side, the cylinder head deep hole drilling tool is provided with two sets, the two sets of the cylinder head deep hole drilling tool are respectively fixedly installed on the workbench of the drilling machine through the tool base, and are symmetrically arranged, and the drill bits of the drilling device are respectively arranged corresponding to the drill sleeves of the cylinder head deep hole drilling tool.

[0018] After adopting the above technical solution, the beneficial effects of the present invention are:

[0019] (1) The cylinder head deep hole drilling tool is used to place the cylinder head to be drilled from the end of the support plate away from the drill sleeve onto the slide of the support plate, and then push it in until one end of the cylinder head abuts against the baffle. After that, the lifting cylinder works to drive the support plate down to the bottom surface of the cylinder head against the support platform. The positioning pin and the support platform respectively realize the positioning and support of the cylinder head. At this time, the drill sleeve corresponds to the position of the cylinder head to be drilled. Finally, each hydraulic cylinder drives the pressure claw to press down to clamp and fix the cylinder head, and then the cylinder head can be drilled. Oil channel hole drilling processing: After the cylinder head drilling processing is completed, each hydraulic cylinder drives the pressure claw to lift up, and the lifting cylinder lifts the support plate, so that the processed cylinder head can be pulled out and removed from the tooling; the cylinder head deep hole drilling tooling is used to realize the positioning and fixing of the cylinder head oil channel hole. The clamping operation is simple and convenient, saving time and effort, and the positioning and clamping of the cylinder head are accurate and firm, which provides a reliable guarantee for the precise drilling of the cylinder head oil channel hole, and greatly improves the processing quality and performance of the cylinder head. The cylinder head deep hole drilling processing device has two sets of symmetrically arranged tooling. After the oil channel hole at one end of the cylinder head is processed on one set of tooling, it is transferred to the other set of tooling to complete the oil channel hole processing at the other end, making the oil channel hole processing of the cylinder head more convenient and efficient.

[0020] (2) The drill sleeve at one end of the tooling base serves to limit the drill bit, effectively reducing the impact of drill bit shaking or vibration on drilling accuracy during the oil channel hole drilling process, providing a reliable guarantee for achieving high-precision processing of the cylinder head oil channel hole.

[0021] (3) The slideway formed by a plurality of rollers saves effort in pushing the cylinder head and does not cause damage to the bottom surface of the cylinder head.

[0022] (4) There are three guide plates, one of which is fixedly installed on the edge of one side of the support plate, and the other two guide plates are fixedly installed on the edge of the other side of the support plate, and the spacing between the guide plates installed on one side is different. The spacing is the same as the width of the cylinder heads on the same side of the intake and exhaust and on the opposite sides of the intake and exhaust, respectively, so that the two cylinder heads on the same side of the intake and exhaust and on the opposite sides of the intake and exhaust can be guided respectively, and the versatility is strong.

[0023] (5) The positioning pins provided play a role in positioning the cylinder head, providing convenience for the clamping and positioning of the cylinder head. The structural design of the cylindrical positioning pins and the diamond positioning pins that cooperate with each other can effectively avoid the occurrence of over-positioning.

[0024] (6) The clamping mechanism is provided, and the hydraulic cylinder works to drive the pressure claw to press down or lift up, so as to clamp or release the cylinder head. The clamping mechanism is respectively arranged at the four corners of the top of the tooling base, so as to clamp the cylinder head firmly and reliably.

[0025] (7) The support table is provided with an air tightness detection hole connected to the air supply system. After the hydraulic cylinder drives the pressure claw to clamp the cylinder head, the clamping condition of the cylinder head can be automatically detected. If there is no gas leakage, the positioning clamping is accurate and firm. If there is gas leakage, effective clamping is not achieved, and an alarm is used to remind the staff to make adjustments or re-clamping operations.

[0026] (8) The support plate is provided with chip leakage holes, and the iron chips generated during the drilling of the oil channel hole can fall from the chip leakage holes. The tooling base has a chip guide surface, which is inclined to facilitate the iron chips that fall from the chip leakage hole to the chip guide surface to slide down, thereby avoiding the accumulation of iron chips. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0028] Figure 1 It is a structural schematic diagram of the deep hole drilling tool for the cylinder head of the present invention;

[0029] Figure 2 Another three-dimensional structural schematic diagram of the deep hole drilling tool for a cylinder head of the present invention;

[0030] Figure 3 It is a structural schematic diagram of the tooling base of the present invention;

[0031] Figure 4 It is a structural schematic diagram of the support plate of the present invention;

[0032] Figure 5 It is a structural schematic diagram of the clamping mechanism of the present invention;

[0033] Figure 6 It is a partial structural schematic diagram of the positioning pin and the support platform of the present invention installed on the tooling base;

[0034] Figure 7 It is a schematic diagram of the clamping structure of the cylinder head on the same side of the intake and exhaust according to the present invention;

[0035] Figure 8 It is a schematic diagram of the clamping structure of the cylinder head on the opposite sides of the intake and exhaust according to the present invention;

[0036] Fig. 9 It is a structural schematic diagram of the deep hole drilling processing device for a cylinder head of the present invention;

[0037] Figure markings: 1-tooling base; 101-chip guide surface; 102-mounting groove; 2-lifting cylinder; 3-support plate; 301-chip leakage hole; 4-mounting plate; 5-roller; 6-guide plate; 7-support rod; 8-baffle; 9-drill sleeve mounting seat; 10-drill sleeve; 11-locating pin; 12-support table; 1201-airtightness detection hole; 13-hydraulic cylinder; 14-pressure claw; 15-fixed block; 16-connecting rod; 17-drilling machine; 18-drilling device; 19-cylinder head. DETAILED DESCRIPTION

[0038] The present invention is further described below in conjunction with specific examples. However, the use and purpose of these exemplary embodiments are only used to illustrate the present invention, and do not constitute any form of limitation on the actual protection scope of the present invention, nor do they limit the protection scope of the present invention to them.

[0039] like Figures 1 to 8 As shown, this embodiment provides a cylinder head deep hole drilling tool, including a tool base 1, a support plate 3 driven by a driving device is provided above the tool base 1, and a slideway for conveying the cylinder head and a guide plate 6 for slidingly guiding the cylinder head 19 are provided on the support plate 3; a baffle 8 and a drill sleeve 10 are provided at one end of the tool base 1, and a plurality of positioning pins 11 for positioning the cylinder head, a support platform 12 for supporting the cylinder head and a clamping mechanism for fixing the cylinder head are provided on the top of the tool base 1. When one end of the cylinder head 19 is in a state of abutting against the baffle 8, the positioning pins 11 are arranged corresponding to the positioning holes on the cylinder head 19.

[0040] The driving device includes a lifting cylinder 2, which is fixedly mounted on the tooling base 1 and located in the middle of the tooling base 1. The top of the piston shaft of the lifting cylinder 2 is fixedly connected to the support plate 3. In this embodiment, a mounting groove 102 is opened in the middle of the tooling base 1, and the lifting cylinder 2 is fixedly mounted in the mounting groove 102.

[0041] A parallel mounting plate 4 is fixedly mounted on the support plate 3, and a plurality of rollers 5 are rotatably mounted on the mounting plate 4. The plurality of rollers 5 are evenly arranged on the mounting plate 4 to form a slideway. The slideway formed by the plurality of rollers 5 saves effort in pushing the cylinder head 19 without causing damage to the bottom surface of the cylinder head 19.

[0042] The guide plate 6 is arranged parallel to the slideway, and there are three guide plates 6, one of which is fixedly installed at the edge of one side of the support plate 3, and the other two guide plates 6 are fixedly installed at the edge of the other side of the support plate 3, and the spacing between the guide plates 6 installed on one side is different, and the spacing is respectively the same as the width of the two cylinder heads on the same side of the intake and exhaust and the opposite side of the intake and exhaust, so that the two cylinder heads on the same side of the intake and exhaust and the opposite side of the intake and exhaust can be guided respectively, such as Figure 7 and Figure 8 As shown, it has strong versatility.

[0043] In this embodiment, the guide plate 6 is fixedly mounted on the support plate 3 via the support rod 7, and the guide plate 6 installed at one edge of the support plate 3 is located between the two guide plates 6 installed at the other edge of the support plate 3 in terms of height.

[0044] In this embodiment, the inner side of the end of the guide plate 6 is a chamfered structure, which plays a guiding role when the cylinder head 19 is pushed in.

[0045] The clamping mechanism is respectively arranged at the four corner positions of the top of the tooling base 1, and the clamping mechanism includes a hydraulic cylinder 13 fixedly installed on the tooling base 1, and a pressure claw 14 is hingedly installed at the piston shaft end of the hydraulic cylinder 13. A fixed block 15 is fixedly installed on the hydraulic cylinder 13, and a connecting rod 16 is arranged between the fixed block 15 and the pressure claw 14. The two ends of the connecting rod 16 are respectively hingedly connected to the pressure claw 14 and the fixed block 15, and the hinge point with the pressure claw 14 is located at the middle position of the pressure claw 14; the clamping mechanism is provided, and the hydraulic cylinder 13 works to drive the pressure claw 14 to press down or lift, so as to clamp or release the cylinder head 19, and the clamping mechanism is respectively arranged at the four corner positions of the top of the tooling base 1, so as to clamp the cylinder head 19, and the clamping is firm and reliable.

[0046] In this embodiment, the locating pin 11 includes a cylindrical locating pin 11 and a diamond locating pin 11, and the cylindrical locating pin 11 and the diamond locating pin 11 are respectively located at the two ends of the tooling base 1 and are arranged correspondingly; the locating pin 11 is provided to play a role in positioning the cylinder head 19, and provides convenience for the clamping and positioning of the cylinder head 19, and the structural design of the cylindrical locating pin 11 and the diamond locating pin 11 can effectively avoid the occurrence of over-positioning.

[0047] In this embodiment, the support platforms 12 are respectively located at the two ends of the top of the tooling base 1, and are arranged in pairs. The support platforms 12 are provided with airtight detection holes 1201 connected to the air supply system. In this embodiment, the air supply system can be connected to an alarm device to realize airtight detection alarm. The alarm device can use a commercially available sound and light alarm. Since the air supply system and the alarm device are both known to those skilled in the art, they are not described here. The airtight detection holes 1201 connected to the air supply system provided on the support platform 12 can realize automatic detection of the clamping status of the cylinder head 19 after the hydraulic cylinder 13 drives the pressure claw 14 to clamp the cylinder head 19. If there is no gas leakage, the positioning clamping is accurate and firm. If there is gas leakage, effective clamping is not achieved, and an alarm is used to remind the staff to make adjustments or re-clamping operations.

[0048] In order to realize the installation of the drill sleeve 10, a drill sleeve mounting seat 9 is fixedly installed at one end of the tooling base 1, and the drill sleeve 10 is fixedly installed on the drill sleeve mounting seat 9. The installed drill sleeve 10 plays a role of limiting the position of the drill when drilling the oil channel hole of the cylinder head 19, effectively reducing the influence of the shaking or vibration of the drill on the drilling accuracy during the drilling of the oil channel hole, and providing a reliable guarantee for realizing the high-precision processing of the oil channel hole of the cylinder head 19.

[0049] In this embodiment, a plurality of chip leakage holes 301 are provided on the support plate 3, and the tooling base 1 is a shell structure having two inclined chip guiding surfaces 101 and a trapezoidal cross-section; the chip leakage holes 301 provided on the support plate 3 allow iron chips generated during the oil channel hole drilling process to fall through the chip leakage holes 301, and the chip guiding surface 101 of the tooling base 1 is inclined to facilitate the sliding of iron chips that fall from the chip leakage holes 301 to the chip guiding surface 101, thereby avoiding the accumulation of iron chips.

[0050] like Fig. 9 As shown, this embodiment also discloses a cylinder head deep hole drilling processing device, including a drilling machine 17, and also includes the cylinder head deep hole drilling tool as described above, the drilling machine 17 has two drilling devices 18 arranged side by side, and the cylinder head deep hole drilling tool is provided with two sets, and the two sets of cylinder head deep hole drilling tool are respectively fixedly installed on the workbench of the drilling machine 17 through the tool base 1, and are symmetrically arranged, and the drill bits of the drilling device 18 are respectively arranged corresponding to the drill sleeves 10 of the cylinder head deep hole drilling tool. In this embodiment, one end of the drilling machine 17 has a notch for facilitating the removal and placement of the cylinder head 19, and the drilling device 18 adopts an existing deep hole drilling device, which will not be described in detail here.

[0051] The cylinder head deep hole drilling tooling based on the above structure places the cylinder head 19 to be drilled from the end of the support plate 3 away from the drill sleeve 10 onto the slideway of the support plate 3, and then pushes it in until one end of the cylinder head 19 abuts against the baffle 8, and then the lifting cylinder 2 works to drive the support plate 3 down to the bottom surface of the cylinder head 19 against the support platform 12, and the positioning pin 11 and the support platform 12 respectively realize the positioning and support of the cylinder head 19. At this time, the drill sleeve 10 corresponds to the position of the cylinder head 19 to be drilled. Finally, each hydraulic cylinder 13 drives the pressure claw 14 to press down to achieve the clamping and fixing of the cylinder head 19. After the drilling of the oil passage holes of the cylinder head 19 is completed, each hydraulic cylinder 13 drives the pressure claw 14 to lift up, and the lifting cylinder 2 lifts the support plate 3, so that the processed cylinder head 19 can be pulled out and removed from the tooling; the positioning and fixing of the oil passage holes of the cylinder head can be achieved through the cylinder head deep hole drilling tooling, and the clamping operation is simple and convenient, saving time and effort, and the positioning and clamping of the cylinder head 19 is accurate and firm, which provides a reliable guarantee for the accurate drilling of the oil passage holes of the cylinder head, and greatly improves the processing quality and performance of the cylinder head. The cylinder head deep hole drilling processing device has two sets of symmetrically arranged tooling. After the oil passage holes at one end of the cylinder head are processed on one set of tooling, the oil passage holes at the other end are processed on the other set of tooling, making the processing of the oil passage holes of the cylinder head 19 more convenient and efficient.

[0052] It should be understood that the purpose of these embodiments is only to illustrate the present invention and is not intended to limit the protection scope of the present invention. In addition, it should also be understood that after reading the technical content of the present invention, those skilled in the art can make various changes, modifications and / or variations to the present invention, and all of these equivalent forms also fall within the protection scope defined by the appended claims of this application.

Claims

1. A deep hole drilling tool for a cylinder head, characterized in that: It comprises a tooling base, a support plate driven by a driving device is arranged above the tooling base, a slideway for conveying the cylinder head and a guide plate for guiding the sliding of the cylinder head are arranged on the support plate; A parallel mounting plate is fixedly mounted on the support plate, a plurality of rollers are rotatably mounted on the mounting plate, and the plurality of rollers are evenly arranged on the mounting plate to form the slideway; The guide plate is arranged parallel to the slideway, and there are three guide plates, the inner side of the end of the guide plate is a chamfered structure, one of the guide plates is fixedly installed at the edge of one side of the support plate, and the other two guide plates are fixedly installed at the edge of the other side of the support plate, and the spacing between the guide plates installed on one side is different, and the spacing is the same as the width of the two cylinder heads on the same side of the intake and exhaust and the opposite side of the intake and exhaust, respectively, and the guide plate installed at the edge of one side of the support plate is located between the two guide plates installed at the edge of the other side of the support plate in terms of height; A baffle and a drill sleeve are provided at one end of the tooling base, and a plurality of positioning pins for positioning the cylinder head, a support platform for supporting the cylinder head, and a clamping mechanism for fixing the cylinder head are provided at the top of the tooling base. When one end of the cylinder head is in a state of abutting against the baffle, the positioning pins are arranged correspondingly to the positioning holes on the cylinder head; The support plate is provided with a plurality of chip leakage holes, and the tooling base is a shell structure with two inclined chip guiding surfaces and a trapezoidal cross section.

2. The cylinder head deep hole drilling tool as claimed in claim 1, characterized in that: The driving device comprises a lifting cylinder, which is fixedly mounted on the tooling base and located in the middle of the tooling base, and the top end of the piston shaft of the lifting cylinder is fixedly connected to the supporting plate.

3. The cylinder head deep hole drilling tool as claimed in claim 2, characterized in that: The positioning pins include cylindrical positioning pins and diamond positioning pins, and the cylindrical positioning pins and the diamond positioning pins are respectively arranged at two ends of the tooling base.

4. The cylinder head deep hole drilling tool as claimed in claim 3, characterized in that: The support platforms are respectively located at two ends of the top of the tooling base, and airtight detection holes connected to the air supply system are opened on the support platforms.

5. The cylinder head deep hole drilling tool as claimed in claim 4, characterized in that: A drill sleeve mounting seat is fixedly mounted on one end of the tooling base, and the drill sleeve is fixedly mounted on the drill sleeve mounting seat.

6. The cylinder head deep hole drilling tool as claimed in claim 5, characterized in that: The clamping mechanism is respectively arranged at the four corner positions of the top of the tooling base, and the clamping mechanism includes a hydraulic cylinder fixedly installed on the tooling base, a pressure claw is hingedly installed on the end of the piston shaft of the hydraulic cylinder, a fixed block is fixedly installed on the hydraulic cylinder, a connecting rod is provided between the fixed block and the pressure claw, two ends of the connecting rod are respectively hingedly connected to the pressure claw and the fixed block, and the hinge point with the pressure claw is located in the middle position of the pressure claw.

7. A cylinder head deep hole drilling device, comprising a drilling machine, characterized in that: It also includes the cylinder head deep hole drilling tool as described in claim 1, the drilling machine has two drilling devices arranged side by side, and the cylinder head deep hole drilling tool is provided with two sets, the two sets of the cylinder head deep hole drilling tool are respectively fixedly installed on the workbench of the drilling machine through the tool base, and are symmetrically arranged, and the drill bits of the drilling device are respectively arranged corresponding to the drill sleeves of the cylinder head deep hole drilling tool.

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