Cleaning device for machining chippings in threaded hole of engine cylinder cover

Abstract

A cleaning device for machining chippings in a threaded hole of an engine cylinder cover comprises a bottom plate, the upper end of the bottom plate is fixedly connected with a supporting seat, a mounting plate is arranged at the upper end of a cavity of the supporting seat to form a closed cavity, a first cylinder is mounted at the lower end of the mounting plate and located in the closed cavity, and a piston rod of the first cylinder extends downwards and is connected with a lifting plate. The lifting plate can vertically move in the closed cavity, a positioning rod used for removing metal chippings is arranged on the lifting plate, and the positioning rod upwards extends out of the mounting plate and axially moves in a threaded hole of the engine cylinder cover under the action of the first air cylinder to bring out the metal chippings. A clamping device used for clamping an engine cylinder cover is arranged on the side of the supporting base.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of engine cylinder cover, concretely relates to the processing scrap cleaning device in the threaded hole of engine cylinder cover. BACKGROUND

[0002] The engine cylinder cover is an important component of the engine, is located at the top of the engine cylinder body, and constitutes a closed space of the combustion chamber together with the cylinder body. Its main functions include sealing the cylinder body, bearing the high temperature and high pressure in the combustion chamber, and providing structural support for the steam inlet channel, steam outlet channel and cooling channel. Figure 4 As shown in the figure, the engine cylinder cover is a highly concentrated hole series part, a large number of threaded holes are distributed on it, and part of the threaded holes are stepped holes. When processing these holes, a large amount of scrap metal in the form of scrap will often be generated, which is difficult to clean.

[0003] At present, the common method to remove metal scraps is manual blowing method, that is, blowing air into the hole to blow out the metal scraps by manual operation. However, this method has the problem of low production efficiency, and the metal scraps may enter the oral cavity of the operator along with the steam flow, which is harmful to health. Therefore, CN114055241A discloses an aluminum cylinder cover threaded hole processing scrap cleaning device, although the device replaces manual operation, but the technical scheme of cleaning the metal scraps in the hole by blowing air still has the following disadvantages: incomplete cleaning, when using the blowing method to clean the metal scraps, some smaller metal scraps or metal strips connected on the threads are difficult to be taken out by the steam flow, which may be left in the hole, thereby affecting the subsequent assembly or use performance; secondary pollution, after the steam flow blows out the scraps, these scraps are easy to fly around, causing secondary pollution of the surrounding environment, which not only increases the cleaning workload, but also may cause pollution to other equipment or workpieces. SUMMARY

[0004] The utility model aims at the corresponding insufficient of prior art, provides a kind of processing scrap cleaning device in the threaded hole of engine cylinder cover, provides a kind of efficient, safe processing scrap cleaning device in the threaded hole of engine cylinder cover.The device is driven positioning rod by first cylinder, positioning rod can move axially, moves axially in the threaded hole of engine cylinder cover, and takes out the metal scrap in the hole.Compared with traditional blowing method, the device is cleaned more completely, especially has remarkable effect on the metal strip attached on the internal thread, avoids that metal scrap remains affects subsequent assembly or use performance, in addition, device is equipped with clamping device, engine cylinder cover is clamped by the compression arm driven by second cylinder, ensure that cleaning process is stable and reliable.Meanwhile, the device is also equipped with operating plate and positioning pin, can accurately position engine cylinder cover, improve cleaning efficiency and machining precision.

[0005] The utility model aims at the following scheme realization:

[0006] The utility model provides a kind of engine cylinder cover threaded hole inner processing debris cleaning device, including bottom plate, the bottom plate upper end fixed connection one support seat, the cavity upper end of the support seat is provided with an installation plate and constitutes closed cavity, the first cylinder is installed in the lower end of the installation plate, and its piston rod extends downward and connects a lifting plate, the lifting plate can be vertically moved in closed cavity, the lifting plate is equipped with the positioning rod for removing metal debris, the positioning rod extends out of installation plate upwards, and under the action of the first cylinder, it moves axially in the threaded hole of engine cylinder cover, and carries out metal debris, the support seat side is equipped with the clamping device for clamping engine cylinder cover.

[0007] Preferably, the clamping device is located on both sides of the support seat, including the second cylinder mounted on the upper end surface of the bottom plate, the upper end surface of the second cylinder is provided with a pressing arm support, the pressing arm support is hinged in the middle section of the pressing arm, one end of the pressing arm is hinged on the piston rod of the second cylinder, and the free end is located above the installation plate for abutting against the engine cylinder cover.

[0008] Preferably, the positioning rod is 4, and the lower end is fixed on the lifting plate, and the upper end extends out of the installation plate for simultaneously entering and exiting multiple threaded holes of the engine cylinder cover.

[0009] Preferably, the diameter of the positioning rod is smaller than the hole diameter of the threaded hole of the engine cylinder cover, and the maximum axial length of the positioning rod extending into the threaded hole of the engine cylinder cover is smaller than the hole depth of the threaded hole.

[0010] Preferably, the upper end surface of the installation plate is provided with an operating plate.

[0011] Preferably, the upper end surface of the operating plate is provided with a pad for lifting the engine cylinder cover, so that a gap is left between the engine cylinder cover and the operating plate.

[0012] Preferably, the positioning rod is slidingly fitted in the positioning rod bushing, the bottom end of the positioning rod bushing is fixedly connected to the operating plate, and the positioning rod bushing is used to match the large diameter section of the stepped threaded hole.

[0013] Preferably, the upper end surface of the bottom plate is provided with a valve support, and the valve mounted on the valve support is connected with the gas circuit of the first cylinder and the second cylinder for controlling the extension and retraction of the first cylinder and the second cylinder.

[0014] Preferably, the abutting surface of the free end of the pressing arm is arc-shaped, and the top end is provided with a downward extending gripping finger.

[0015] Preferably, the upper end surface of the bottom plate is provided with a cylinder fixing seat for increasing the height of the second cylinder, and the second cylinder is installed on the cylinder fixing seat.

[0016] The utility model has the following beneficial effects:

[0017] Thorough cleaning and high efficiency: the positioning rod is driven by the first air cylinder and can be deeply inserted into the threaded hole of the engine cylinder cover to effectively take out the metal debris. Compared with the traditional blowing cleaning method, the cleaning method of the utility model is of the extension contact type, which has a remarkable cleaning effect on the metal strip attached to the internal thread, avoids the influence of residual debris on subsequent assembly or use performance, and significantly improves the cleaning efficiency.

[0018] Avoiding secondary environmental pollution: mechanical cleaning instead of air flow blowing can effectively prevent environmental pollution caused by metal debris scattering, reduce cleaning workload, avoid pollution to other equipment or workpieces, and improve the cleanliness and safety of the operation area.

[0019] Multi-hole synchronous cleaning: the positioning rod is designed as a multi-root structure and can simultaneously enter multiple threaded holes for cleaning, greatly improving the work efficiency. At the same time, positioning rods with different axial lengths can be set to adapt to the cleaning needs of threaded holes with different depths, enhancing the applicability of the device.

[0020] Precise operation and simple use: equipped with an operation plate and a positioning pin to realize precise positioning of the engine cylinder cover; the clamping device is driven by the second air cylinder to press the arm to ensure the stability of the cylinder cover during cleaning, further improving the cleaning effect and the reliability of the device operation, and the operation is simple and efficient.

[0021] High safety: the utility model adopts mechanical cleaning to avoid direct contact of the operator with the metal debris and reduce the health risk. At the same time, the manual operation link is reduced, and the safety and work comfort in the production process are improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural schematic view of the utility model;

[0023] Figure 2 is a front view of the utility model;

[0024] Figure 3 is a side view of the utility model;

[0025] Figure 4 is a structural schematic view of an engine cylinder cover. DETAILED DESCRIPTION

[0026] As Figures 1 to 3As shown, a kind of engine cylinder cover threaded hole inner processing debris cleaning device, including bottom plate 1, the upper end surface of the bottom plate 1 is equipped with a support seat 2, the cavity upper end of the support seat 2 is provided with an installation plate 16 to constitute closed cavity, the first cylinder 3 is installed in the lower end of the installation plate 16, the piston rod of the first cylinder 3 is installed in the lower end surface of the installation plate 16, and the first cylinder 3 is located in closed cavity, and the movable range of the piston rod of the first cylinder 3 is located in the closed cavity formed by the support seat 2 and the installation plate 16, and the piston rod extends downward and is connected to a lifting plate 4, the lifting plate 4 is also located in the inner cavity of the support seat 2 formed by the upward opening seat and the cover plate, and can be vertically moved in the cavity under the action of the first cylinder 3, the lifting plate 4 is provided with four positioning rods 5 for removing metal debris, the positioning rods 5 extend upward out of the installation plate 16, and the positioning rods 5 pass through the operating plate 9 provided on the upper end surface of the support seat 2 to facilitate positioning engine cylinder cover, and the positioning rods 5 move axially under the action of the first cylinder 3;

[0027] The diameter of the positioning rod 5 is smaller than the hole diameter of the threaded hole of the engine cylinder cover, the maximum axial length of the positioning rod 5 extending into the threaded hole of the engine cylinder cover is smaller than the hole depth of the threaded hole, and the axial length of the positioning rod 5 is set according to the hole depth of the threaded hole, and the diameter of the positioning rod 5 is set according to the diameter of the threaded hole, in the embodiment, the positioning rod 5 sleeved with the positioning rod bushing 10 is thinner than the positioning rod 5 without the positioning rod bushing 10, so as to meet the cleaning requirements of threaded holes with different hole depths and hole diameters, the lower end of the positioning rod 5 is fixed on the lifting plate 4 through bolts, and the upper end of the positioning rod 5 extends out of the support seat 2, so as to simultaneously enter and exit multiple threaded holes of the engine cylinder cover and carry out metal debris, the positioning rod 5 is slidingly fitted in the positioning rod bushing 10, the axial length of the positioning rod bushing 10 is smaller than the axial length of the positioning rod 5, and in the utility model, two positioning rods 5 are slidingly fitted in the positioning rod bushing 10, the bottom end of the positioning rod bushing 10 is fixedly connected to the operating plate 9, and the positioning rod bushing 10 is used for matching the large diameter section of the stepped threaded hole.

[0028] The upper end surface of the operating plate 9 is provided with a cushion block 11 for lifting the engine cylinder cover, so that a gap is left between the engine cylinder cover and the operating plate 9, and the cushion block 11 has strength and plays a supporting stress role, lifts the engine cylinder cover away from the operating plate 9, prevents the engine cylinder cover from being scratched during machining, and affects the secret effect of the engine cylinder cover.

[0029] The support base 2 is provided with a clamping device on its side for clamping the engine cylinder head. There are two clamping devices, one on each side of the support base 2. Each clamping device includes a second cylinder 6 mounted on the upper surface of the base plate 1. The upper surface of the base plate 1 is provided with a cylinder mounting seat 15 for raising the height of the second cylinder 6. The second cylinder 6 is mounted on the cylinder mounting seat 15. A clamping arm bracket 7 is provided on the upper surface of the second cylinder 6. The clamping arm bracket 7 includes two hinged arms, which are hinged to the clamping arm 8. The clamping arm 8 is located between the two hinged arms of the clamping bracket 7. One end of the clamping arm 8 is hinged to the piston rod of the second cylinder 6, and the free end is located above the support seat 2 for contact with the engine cylinder head. The contact surface of the free end of the clamping arm 8 is arc-shaped, and the top end is provided with a downwardly extending gripping finger 14 for better fixing the engine cylinder head. The clamping arm 8 abuts against the upper end surface of the engine cylinder head, and the lower end surface of the engine cylinder head abuts against the operating plate 9, thereby fixing the engine cylinder head to the upper end surface of the operating plate 9.

[0030] The upper surface of the base plate 1 is provided with a valve bracket 12. The valve 13 installed on the valve bracket 12 is connected to the steam circuit of the first cylinder 3 and the second cylinder 6 and is used to control the extension and retraction of the first cylinder 3 and the second cylinder 6.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications made to the present utility model by those skilled in the art without departing from the spirit of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. An engine cylinder head threaded bore internal machining debris cleaning device characterized by: The utility model provides a kind of engine cylinder head cleaning device, including bottom plate (1), the upper end fixed connection of the bottom plate (1) is supported seat (2), the cavity upper end of the supported seat (2) is provided with an installation plate (16) and constitutes closed cavity, the first cylinder (3) is installed in the lower end of the installation plate (16), the first cylinder (3) is located in closed cavity, its piston rod extends downward and connects a lifting plate (4), the lifting plate (4) can be vertically moved in closed cavity, the lifting plate (4) is equipped with the positioning rod (5) for removing metal scrap, the positioning rod (5) extends out of installation plate (16) upward, and it is axially moved in engine cylinder head screw hole under the action of the first cylinder (3), carries out metal scrap, the supported seat (2) side is equipped with the clamping device for clamping engine cylinder head.

2. The engine cylinder head threaded bore finish machining debris cleaning device of claim 1, wherein: The clamping device is located in the two sides of supported seat (2), including second cylinder (6) installed on the upper end surface of bottom plate (1), the upper end surface of the second cylinder (6) is equipped with pressure arm support (7), the pressure arm support (7) is hinged in the middle section of pressure arm (8), one end of pressure arm (8) is hinged on the piston rod of second cylinder (6), and the free end is located above installation plate (16), for and engine cylinder head abutment.

3. The engine cylinder head threaded bore finish machining debris cleaning device of claim 1, wherein: The positioning rod (5) is 4, and the lower end is fixed on the lifting plate (4), and the upper end is stretched out of the installation plate (16), for simultaneously entering and exiting the multiple screw holes of engine cylinder head.

4. The engine cylinder head threaded bore finish machining debris cleaning device of claim 3, wherein: The diameter of the positioning rod (5) is less than the hole diameter of the threaded hole of engine cylinder head, and the maximum axial length of the positioning rod (5) extending into the threaded hole of engine cylinder head is less than the hole depth of the threaded hole.

5. The engine cylinder head threaded hole cleaning device as described in claim 1, characterized in that: The upper end surface of the installation plate (16) is equipped with operating plate (9).

6. The engine cylinder head threaded bore machining debris cleaning apparatus of claim 5, wherein: The upper end surface of the operating plate (9) is equipped with pad (11) for lifting engine cylinder head, so that there is a gap between engine cylinder head and operating plate (9).

7. The engine cylinder head threaded bore machining debris cleaning apparatus of claim 5, wherein: The positioning rod (5) is slidably fitted in the positioning rod bushing (10), the bottom end of the positioning rod bushing (10) is fixedly connected to the operating plate (9), and the positioning rod bushing (10) is used to cooperate with the large diameter section of the stepped threaded hole.

8. The engine cylinder head threaded bore finish machining debris cleaning device of claim 2, wherein: The upper end surface of the bottom plate (1) is equipped with valve support (12), and the valve (13) installed on the valve support (12) is connected with the air path of the first cylinder (3) and the second cylinder (6), for controlling the extension and contraction of the first cylinder (3) and the second cylinder (6).

9. The engine cylinder head threaded bore finish machining debris cleaning device of claim 2, wherein: The abutment surface of the free end of the pressure arm (8) is arc-shaped, and the top end is provided with downward extending holding finger (14).

10. The engine cylinder head threaded bore finish machining debris cleaning device of claim 2, wherein: The upper end surface of the bottom plate (1) is equipped with cylinder fixing seat (15) for improving the height of the second cylinder (6), and the second cylinder (6) is installed on the cylinder fixing seat (15).

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