Tool for machining engine cylinder block hole series threads

Abstract

The invention belongs to the technical field of engine cylinder block machining, and particularly relates to an engine cylinder block hole thread machining tool which comprises a machine tool, a workbench is installed on the machine tool, a plurality of sliding grooves are formed in the top of the workbench, and an engine cylinder block is placed on the workbench; a plurality of positioning tools are arranged on the workbench; the sliding block in the sliding groove of the workbench slides, the sliding block drives the pressing plate to move in the direction of the engine cylinder body, the bolt on the cross beam is screwed, the bolt moves towards the pressing plate to press the pressing plate and the gasket, the pressing plate and the gasket press the engine cylinder body, and the engine cylinder body can be firmly fixed to the workbench for punching operation. When the sliding block slides, the scraping plate can be driven to scrape scrap iron generated during machining in the sliding groove out of the sliding groove, the arc-shaped connecting plate is matched to prevent more and more accumulated scrap iron from crossing over the sliding block, and the arc-shaped connecting plate enables the accumulated scrap iron to continuously roll forwards so as to be cleaned out of the sliding groove.

Description

Technical Field

[0001] The invention belongs to the technical field of engine cylinder body processing, in particular to a tool for processing thread of a hole system of an engine cylinder body. Background Art

[0002] The engine cylinder block is a key component of the internal combustion engine. It is the main structure of the engine, and it supports other major components and provides operating space. The cylinder block is usually made of aluminum alloy or cast iron, and has sufficient strength and rigidity to withstand the high pressure and high temperature environment inside the engine. The engine cylinder block needs to be punched during processing to facilitate the subsequent installation and use of components such as piston rods. The punching process of the engine cylinder block mainly involves the processing of holes such as cylinder holes, oil channels, and cooling water channels. Since the cylinder block needs to withstand a high temperature and high pressure working environment, the size, position and surface quality of these holes are extremely precise. Punching usually uses machine tools to ensure the accuracy and quality of the holes to ensure the normal operation and durability of the engine.

[0003] When drilling the engine cylinder block, it is necessary to first place the engine cylinder block on the workbench of the machine tool and then position it using a tooling to ensure that the engine cylinder block will not be displaced during subsequent processing.

[0004] There are two existing ways to position the engine cylinder block. One is to fix the engine cylinder block through a dedicated positioning mechanism. However, the engine cylinder block models processed by the factory often change, and different models and types of engine cylinder blocks are often processed. This results in the inability of the dedicated positioning mechanism to quickly match different models of engine cylinder blocks, and the positioning mechanism needs to be replaced. The other is that the operator will use the existing gaskets and bolts to fix the engine cylinder block on the workbench of the machine tool. This fixing method requires the operator to constantly adjust the number of gaskets to adapt the engine cylinder block. At the same time, the operator also needs to have relevant experience to firmly fix the engine cylinder block, so this method is inefficient.

[0005] To this end, the present invention provides a tool for thread processing of engine cylinder block holes. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: the tooling for thread processing of engine cylinder block holes described in the present invention comprises a machine tool, a workbench is installed on the machine tool, a plurality of slide grooves are opened on the top of the workbench, and an engine cylinder block is placed on the workbench; a plurality of positioning toolings are arranged on the workbench, and the positioning toolings include a slider sliding in the slide groove, a pressure plate is slidably connected to the slider, a gasket is fixedly installed on the bottom of the pressure plate, a crossbeam is screwed to one side of the slider, a bolt is threaded on the top of the crossbeam, balls are clamped on both sides of the slider, and scrapers are fixedly installed on both sides of the slider; an anti-slip mechanism is arranged on one side of the pressure plate, and a connecting mechanism is arranged on one side of the slider.

[0008] Furthermore, a connecting plate is fixedly installed on the top of the scraper, and both the scraper and the connecting plate are arc-shaped, and the scraper and the connecting plate cooperate to form a semicircle.

[0009] Furthermore, the anti-slip mechanism includes a hollow elastic block fixedly mounted on one side of the pressure plate, an air outlet pipe connected to the interior and having a one-way valve fixedly mounted on the bottom of the elastic block, and an air inlet pipe connected to the interior and having a one-way valve fixedly mounted on the top of the elastic block.

[0010] Furthermore, a connecting groove connected to the interior of the elastic block is provided in the pressure plate, a sealing plate is slidably connected in the connecting groove through a spring, a magnetic sheet is fixedly installed on a side of the sealing plate away from the spring, protective powder is pre-stored in the connecting groove, a feed pipe with a one-way valve connected to the interior of the connecting groove is fixedly installed on the top of the pressure plate, a connecting pipe with a one-way valve connected to the interior of the connecting groove is fixedly installed on the bottom of the pressure plate, one end of the connecting pipe away from the connecting groove is connected to the interior of the air outlet pipe; a delay component is provided on the end of the air outlet pipe away from the elastic block.

[0011] Furthermore, the delay assembly includes an end cover rotatably connected to the air outlet pipe via a torsion spring, an end of the end cover away from the air outlet pipe is fixedly mounted with an arc-shaped fixing rod made of rubber material, and a fixing groove is provided on the surface of the air outlet pipe.

[0012] Furthermore, the connecting mechanism includes a rectangular frame fixedly mounted on one side of the slider, a rectangular plate is slidably connected to the inside of the rectangular frame via an elastic member, a brush is fixedly mounted on the bottom of the rectangular plate, a connecting column is fixedly mounted on one end of the rectangular plate away from the elastic member, a rubber ring is fixedly sleeved on the surface of the connecting column, and a groove is provided on one side of the slider away from the rectangular frame.

[0013] Furthermore, the elastic member is a hollow elastic ring, a fixing frame is fixedly installed in the rectangular frame, a surface of the fixing frame close to the rectangular plate is provided with a plurality of holes, and the elastic member and the fixing frame are connected through an air pipe.

[0014] Furthermore, a vibration assembly is provided in the groove of the slider, and the vibration assembly includes a hollow ring fixedly installed in the groove, an arc-shaped rotating plate is rotatably connected in the scraper through a torsion spring, a hollow elastic ball is fixedly installed in the scraper, the elastic ball is fixedly connected to the rotating plate, and the hollow ring and the elastic ball are connected by a hose.

[0015] Furthermore, a spray assembly is provided in the slider, and the spray assembly includes a loading box installed in the slider, a storage box made of rubber material is fixedly installed in the rectangular frame, the loading box and the storage box are connected through a liquid guide tube with a one-way valve, a spray pipe connected to the interior and with a one-way valve is fixedly installed on one side of the storage box, the end of the spray pipe away from the storage box is close to the bolt, and an arc-shaped top plate is fixedly installed on one side of the rectangular plate.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The tooling for thread processing of the hole system of the engine cylinder block described in the present invention, through the slider in the slide slot of the sliding table, the slider drives the pressure plate to move in the direction of the engine cylinder block, and the bolts on the crossbeam are screwed, and the bolts are used to move to the pressure plate to press the pressure plate and the gasket, so that the pressure plate and the gasket press the engine cylinder block, so that it can be firmly fixed on the workbench for punching processing. When the slider slides, it will drive the scraper to scrape out the iron filings generated during the processing in the slide slot, and then cooperate with the arc-shaped connecting plate to prevent the accumulated iron filings from crossing the slider after more and more, and the arc-shaped connecting plate will make the accumulated iron filings roll forward continuously, and then be cleaned out of the slide slot. The positioning tooling designed can achieve the effect of quickly fixing the engine cylinder block, and at the same time, there is no need to use a positioning tool that matches the engine cylinder block. Taking advantage of the fact that the engine cylinder block is an irregular shape and there must be a concave surface, the pressure plate can contact the engine cylinder block, thereby achieving the effect of quickly pressing the engine cylinder block, thereby greatly improving the work efficiency of installing the engine cylinder block.

[0018] 2. The tooling for threading the hole system of an engine cylinder block described in the present invention provides a buffer when the pressure plate contacts the engine cylinder block by installing an elastic block, which effectively prevents the pressure plate made of hard materials from being damaged after colliding with the engine cylinder block. At the same time, after being squeezed, the gas inside the elastic block will be sprayed to the area to be pressed of the engine cylinder block through the inclined air outlet pipe, thereby reducing the impurities and residual cutting fluid in the area to be pressed, and providing assistance for the subsequent gasket to press the engine cylinder block. As the pressure plate continues to move, the sealing plate is used to squeeze the protective powder in the connecting groove, so that the protective powder enters the air outlet pipe through the connecting pipe and is sprayed onto the area to be pressed of the engine cylinder block. By spraying the protective powder, the friction force of the area to be pressed is effectively increased, which facilitates the pressure plate and the gasket to better press and fix the engine cylinder block. At the same time, the protective powder can form a protective layer on the surface of the engine cylinder block to reduce the oxidation effect of oxygen and moisture on the iron surface.

[0019] 3. The tooling for thread processing of the hole system of the engine cylinder block described in the present invention is to pull the connecting column so that the connecting column with the rubber ring enters the groove of another slider and is clamped and fixed. When the ring enters the groove, it will squeeze the hollow ring inside. The gas in the hollow ring flows into the elastic ball through the hose and expands, thereby driving the rotating plate to rotate and collide in the direction of the connecting plate, thereby removing the impurities remaining on the surface of the connecting plate and the scraper, and facilitating the subsequent connecting plate and scraper to efficiently clean the iron filings in the chute. When several sliders are connected together, by sliding one slider, several sliders are driven to move together, without the need for separate sliders, which is convenient for the staff to operate and also improves work efficiency. And when the slider moves, the brush at the bottom of the rectangular plate will push the iron filings on the surface of the workbench, and push the iron filings into the chute, and use the scraper and the connecting plate to remove them.

[0020] 4. The tooling for thread processing of the hole system of the engine cylinder block described in the present invention, the rectangular plate is reset under the action of the elastic member, so that the gas in the elastic member enters the hole of the fixed frame through the air pipe and blows out, and then the brush at the bottom of the rectangular plate is blown and cleaned, reducing the brush from carrying impurities into the rectangular frame. The reset of the rectangular plate and the brush also shields the port of the rectangular frame, which can also reduce the entry of impurities. The top plate on one side of the rectangular plate is used to squeeze the storage box made of rubber material, so that the maintenance liquid in the storage box is sprayed to the bolt through the spray pipe, and then the bolt is maintained. The applied maintenance liquid can form a lubricating film on the thread surface of the bolt, which helps to prevent wear and extend the service life of the bolt. At the same time, the maintenance liquid has moisture-proof and anti-oxidation effects, which can effectively prevent rust and corrosion on the surface of the bolt. When the storage box made of rubber material is no longer squeezed and reset, the maintenance liquid in the loading box will be sucked into the storage box through the liquid guide tube with a one-way valve, thereby ensuring that the storage box is always full of maintenance liquid, and the amount of maintenance liquid sprayed at a single time is controllable, reducing waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the workbench in the present invention;

[0023] Figure 2 It is a structural schematic diagram of the slider in the present invention;

[0024] Figure 3 It is a bottom view structural schematic diagram of the pressure plate in the present invention;

[0025] Figure 4 It is a structural schematic diagram of the rolling ball in the present invention;

[0026] Figure 5 It is a partial cross-sectional structural schematic diagram of the slider in the present invention;

[0027] Figure 6 It is a schematic cross-sectional structure diagram of the scraper in the present invention;

[0028] Figure 7 It is a partial cross-sectional structural schematic diagram of the pressure plate of the present invention;

[0029] Figure 8 It is a partial cross-sectional structural schematic diagram of the air outlet pipe in the present invention;

[0030] Fig. 9 The present invention Figure 5 Schematic diagram of the structure at point A.

[0031] In the figure: 1. machine tool; 2. workbench; 3. slideway; 4. engine block;

[0032] 10. Positioning tool; 11. Slider; 12. Press plate; 13. Gasket; 14. Crossbeam; 15. Bolt; 16. Roller ball; 17. Scraper; 18. Connecting plate;

[0033] 20. Anti-slip mechanism; 21. Elastic block; 22. Air inlet pipe; 23. Air outlet pipe; 24. Connecting groove; 25. Spring; 26. Sealing plate; 27. Magnetic sheet; 28. Connecting pipe;

[0034] 29, delay assembly; 291, end cover; 292, fixing rod; 293, fixing groove;

[0035] 30. Connecting mechanism; 31. Rectangular frame; 32. Rectangular plate; 33. Connecting column; 34. Ring; 35. Groove; 36. Elastic member; 37. Fixed frame;

[0036] 38. Vibration assembly; 381. Hollow ring; 382. Rotating plate; 383. Elastic ball;

[0037] 39. Spraying assembly; 391. Top plate; 392. Loading box; 393. Storage box; 394. Spraying pipe. DETAILED DESCRIPTION

[0038] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0039] like Figures 1 to 9 As shown, a tool for thread processing of a hole system of an engine cylinder block according to an embodiment of the present invention comprises a machine tool 1, a workbench 2 is installed on the machine tool 1, a plurality of slide grooves 3 are opened on the top of the workbench 2, an engine cylinder block 4 is placed on the workbench 2; a plurality of positioning tooling 10 are arranged on the workbench 2, the positioning tooling 10 comprises a slider 11 sliding in the slide groove 3, a pressing plate 12 is slidably connected to the slider 11, a gasket 13 is fixedly installed at the bottom of the pressing plate 12, a crossbeam 14 is screwed to one side of the slider 11, a bolt 15 is threadedly connected to the top of the crossbeam 14, rolling balls 16 are clamped on both sides of the slider 11, and scrapers 17 are fixedly installed on both sides of the slider 11. A connecting plate 18 is fixedly installed on the top of the scraper 17, and the scraper 17 and the connecting plate 18 are both arc-shaped, and the scraper 17 and the connecting plate 18 cooperate to form a semicircular shape.

[0040] During operation, when the engine block 4 is placed on the workbench 2, the slider 11 in the slide groove 3 of the sliding workbench 2 drives the pressure plate 12 to move toward the engine block 4. Since the engine block 4 is not a regular rectangle, there are many depressions and protrusions on its surface, which provide space for the pressure plate 12 to contact the engine block 4. The engine block 4 is pressed down by the cooperation of the pressure plate 12 and the gasket 13. At this time, the bolts 15 on the crossbeam 14 are screwed, and the bolts 15 are used to move toward the pressure plate 12 to press the pressure plate 12 and the gasket 13, so that the pressure plate 12 and the gasket 13 press the engine block 4, so that it can be firmly fixed on the workbench 2 for punching processing. When the processing of the engine block 4 is completed, the bolts 15 are loosened and the slider 11 is slid again, so that the slider 11 no longer fixes the engine block 4.

[0041] Since arc-shaped scrapers 17 and connecting plates 18 are installed on both sides of the slider 11, the slider 11 will drive the scraper 17 to scrape the iron filings generated during processing in the chute 3 out of the chute 3 when sliding, and then cooperate with the arc-shaped connecting plate 18 to prevent the accumulated iron filings from crossing the slider 11. The arc-shaped connecting plate 18 will cause the accumulated iron filings to roll forward continuously and then be cleaned out of the chute 3.

[0042] The positioning fixture 10 designed as above can realize the function of fast fixing the engine block 4, and at the same time, there is no need to use a positioning tool that matches the engine block 4. By taking advantage of the fact that the engine block 4 is an irregular shape and has a concave surface, the pressing plate 12 can contact the engine block 4, thereby realizing the function of fast pressing the engine block 4, thereby greatly improving the work efficiency of installing the engine block 4.

[0043] The anti-slip mechanism 20 includes a hollow elastic block 21 fixedly mounted on one side of the pressing plate 12, an air outlet pipe 23 connected to the inside and having a one-way valve fixedly mounted on the bottom of the elastic block 21, and an air inlet pipe 22 connected to the inside and having a one-way valve fixedly mounted on the top of the elastic block 21. A connecting groove 24 connected to the inside of the elastic block 21 is provided in the pressing plate 12, a sealing plate 26 is slidably connected to the connecting groove 24 through a spring 25, a magnetic sheet 27 is fixedly mounted on the side of the sealing plate 26 away from the spring 25, protective powder is pre-stored in the connecting groove 24, a feed pipe with a one-way valve connected to the inside of the connecting groove 24 is fixedly mounted on the top of the pressing plate 12, and a connecting pipe 28 with a one-way valve connected to the inside of the connecting groove 24 is fixedly mounted on the bottom of the pressing plate 12, and one end of the connecting pipe 28 away from the connecting groove 24 is connected to the inside of the air outlet pipe 23.

[0044] Specifically, the delay assembly 29 includes an end cover 291 rotatably connected to the outlet pipe 23 via a torsion spring, an end of the end cover 291 away from the outlet pipe 23 is fixedly mounted with an arc-shaped fixing rod 292 made of rubber material, and a fixing groove 293 is opened on the surface of the outlet pipe 23.

[0045] During operation, when the slider 11 moves with the pressure plate 12 toward the engine cylinder 4, the elastic block 21 is installed to provide a buffer when the pressure plate 12 contacts the engine cylinder 4, effectively preventing the pressure plate 12 made of hard material from being damaged after contacting the engine cylinder 4. At the same time, after being squeezed, the gas inside the elastic block 21 will be sprayed toward the area to be pressed of the engine cylinder 4 through the inclined air outlet pipe 23, thereby reducing the impurities and residual cutting fluid in the area to be pressed, and providing assistance for the subsequent gasket 13 to press the engine cylinder 4. When the gas is sprayed out through the air outlet pipe 23, the end cover 291 will be pushed open first, so that the end cover 291 with the rubber fixing rod 292 is temporarily fixed in the fixing groove 293, thereby facilitating the gas spraying.

[0046] As the pressing plate 12 continues to move, after the elastic block 21 is completely squeezed, the magnetic sheet 27 of the sealing plate 26 approaches the engine cylinder 4 (the engine cylinder 4 is made of metal), and the magnetic sheet 27 is repelled by the same polarity of the engine cylinder 4, and then slides and retracts into the connecting groove 24, and the sealing plate 26 is used to squeeze the protective powder in the connecting groove 24, so that the protective powder (which can be graphite powder or alloy powder, depending on the actual situation) enters the outlet pipe 23 through the connecting pipe 28 and is sprayed onto the area to be pressed of the engine cylinder 4 (the connecting pipe 28 is closer to the end cover 291 than the one-way valve of the outlet pipe 23, so the protective powder will be sprayed out after entering the outlet pipe 23, and will not enter the elastic block 21 through the outlet pipe 23). Spraying the protective powder effectively increases the friction of the area to be pressed, which facilitates the pressing plate 12 and the gasket 13 to better press and fix the engine cylinder 4. At the same time, the protective powder can form a protective layer on the surface of the engine cylinder 4 to reduce the oxidation of oxygen and moisture on the iron surface.

[0047] The connection mechanism 30 includes a rectangular frame 31 fixedly mounted on one side of the slider 11, a rectangular plate 32 is slidably connected to the rectangular frame 31 through an elastic member 36, a brush is fixedly mounted on the bottom of the rectangular plate 32, a connecting column 33 is fixedly mounted on one end of the rectangular plate 32 away from the elastic member 36, a rubber ring 34 is fixedly sleeved on the surface of the connecting column 33, and a groove 35 is provided on one side of the slider 11 away from the rectangular frame 31. The elastic member 36 is a hollow elastic ring, a fixed frame 37 is fixedly mounted in the rectangular frame 31, a plurality of holes are provided on one side of the fixed frame 37 close to the rectangular plate 32, and the elastic member 36 and the fixed frame 37 are connected through an air pipe.

[0048] Specifically, a vibration assembly 38 is provided in the groove 35 of the slider 11, and the vibration assembly 38 includes a hollow ring 381 fixedly installed in the groove 35, and an arc-shaped rotating plate 382 is rotatably connected in the scraper 17 through a torsion spring, and a hollow elastic ball 383 is fixedly installed in the scraper 17, and the elastic ball 383 is fixedly connected to the rotating plate 382, ​​and the hollow ring 381 and the elastic ball 383 are connected through a hose. A spray assembly 39 is provided in the slider 11, and the spray assembly 39 includes a loading box 392 installed in the slider 11, and a storage box 393 made of rubber material is fixedly installed in the rectangular frame 31, and the loading box 392 and the storage box 393 are connected through a liquid guide tube with a one-way valve, and a spray pipe 394 connected to the inside and with a one-way valve is fixedly installed on one side of the storage box 393, and the end of the spray pipe 394 away from the storage box 393 is close to the bolt 15, and an arc-shaped top plate 391 is fixedly installed on one side of the rectangular plate 32.

[0049] During operation, before sliding the slider 11, if several sliders 11 need to be slid, the connecting column 33 is pulled, so that the connecting column 33 drives the rectangular plate 32 to slide in the direction away from the rectangular frame 31, and then the connecting column 33 with the rubber ring 34 enters the groove 35 of another slider 11 to be clamped and fixed. When the ring 34 enters the groove 35, it squeezes the hollow ring 381 inside, and the gas in the hollow ring 381 flows into the elastic ball 383 through the hose, so that the elastic ball 383 is filled with gas and expands, and then drives the rotating plate 382 to rotate and hit the connecting plate 18, thereby removing impurities remaining on the surface of the connecting plate 18 and the scraper 17, and facilitating the subsequent efficient cleaning of iron filings in the chute 3 by the connecting plate 18 and the scraper 17. When the collar 34 of the connecting column 33 is completely engaged in the groove 35 , the hollow ring 381 is no longer squeezed, so the gas in the elastic ball 383 flows back into the hollow ring 381 through the hose, and the rotating plate 382 is also reset to facilitate subsequent work.

[0050] When several sliders 11 are connected together, one slider 11 can be slid to drive several sliders 11 to move together, without the need for a separate slider 11, which is convenient for the staff to operate and improves the work efficiency. When the slider 11 moves, the brush at the bottom of the rectangular plate 32 will push the iron filings on the surface of the workbench 2 and push the iron filings into the chute 3, and the scraper 17 and the connecting plate 18 will be used to remove them.

[0051] After the slider 11 is used, the connecting column 33 needs to be removed from the groove 35 so that the sliders 11 are no longer connected to each other. The connecting column 33 is separated from the groove 35, and the rectangular plate 32 is reset under the action of the elastic member 36, so that the gas in the elastic member 36 enters the hole of the fixed frame 37 through the air pipe and blows out (because the elastic member 36 will be stretched and then inhale the gas when the rectangular plate 32 slides away from the rectangular frame 31, so when the rectangular plate 32 is reset, gas will be blown out of the elastic member 36), and then the brush at the bottom of the rectangular plate 32 is blown and cleaned, reducing the brush from carrying impurities into the rectangular frame 31. The reset of the rectangular plate 32 and the brush also shields the port of the rectangular frame 31, which can also reduce the entry of impurities.

[0052] Long-term processing of different engine cylinders 4 results in the need to frequently tighten the bolts 15. When the rectangular plate 32 is reset, the rectangular plate 32 is pushed to slide into the rectangular frame 31 again. The top plate 391 on one side of the rectangular plate 32 is used to squeeze the storage box 393 made of rubber material, so that the maintenance liquid (which can be lubricating oil) in the storage box 393 is sprayed to the bolt 15 through the spray pipe 394, and then the bolt 15 is maintained. The applied maintenance liquid can form a lubricating film on the threaded surface of the bolt 15, which helps to prevent wear and extend the service life of the bolt 15. At the same time, the maintenance liquid has moisture-proof and antioxidant effects, which can effectively prevent rust and corrosion on the surface of the bolt 15. When the storage box 393 made of rubber material is no longer squeezed and reset, the maintenance liquid in the loading box 392 will be sucked into the storage box 393 through the liquid guide tube with a one-way valve, thereby ensuring that the storage box 393 is always full of maintenance liquid, and the amount of maintenance liquid sprayed at a single time is controllable, reducing waste.

[0053] Working principle: When the engine block 4 is placed on the workbench 2, the slider 11 in the slide groove 3 of the sliding workbench 2 drives the pressing plate 12 to move toward the engine block 4. Since the engine block 4 is not a regular rectangle, there are many depressions and protrusions on its surface, which provide space for the pressing plate 12 to contact the engine block 4. The pressing plate 12 and the gasket 13 are used to press the engine block 4. At this time, the bolts 15 on the crossbeam 14 are screwed, and the bolts 15 are used to move toward the pressing plate 12 to press the pressing plate 12 and the gasket 13, so that the pressing plate 12 and the gasket 13 press the engine block 4, so that it can be firmly fixed on the workbench 2 for punching processing. Since arc-shaped scrapers 17 and connecting plates 18 are installed on both sides of the slider 11, the slider 11 will drive the scraper 17 to scrape the iron filings generated during processing in the chute 3 out of the chute 3 when sliding, and then cooperate with the arc-shaped connecting plate 18 to prevent the accumulated iron filings from crossing the slider 11. The arc-shaped connecting plate 18 will cause the accumulated iron filings to roll forward continuously and then be cleaned out of the chute 3.

[0054] When the slider 11 moves toward the engine cylinder 4 with the pressure plate 12, the elastic block 21 is installed to provide a buffer when the pressure plate 12 contacts the engine cylinder 4, effectively preventing the pressure plate 12 made of hard material from being damaged after contacting the engine cylinder 4. At the same time, after being squeezed, the gas inside the elastic block 21 will be sprayed toward the area to be pressed on the engine cylinder 4 through the inclined air outlet pipe 23, thereby reducing the impurities and residual cutting fluid in the area to be pressed, and providing assistance for the subsequent gasket 13 to press the engine cylinder 4. When the gas is sprayed out through the air outlet pipe 23, the end cover 291 will be pushed open first, so that the end cover 291 with the rubber fixing rod 292 is temporarily fixed in the fixing groove 293, thereby facilitating the gas spraying. As the pressure plate 12 continues to move, after the elastic block 21 is completely squeezed, the magnetic piece 27 of the sealing plate 26 approaches the engine cylinder body 4, and the magnetic piece 27 is repelled by the engine cylinder body 4, and then slides and retracts into the connecting groove 24, and the sealing plate 26 is used to squeeze the protective powder in the connecting groove 24, so that the protective powder enters the exhaust pipe 23 through the connecting pipe 28 and is sprayed onto the area to be pressed of the engine cylinder body 4.

[0055] Before sliding the slider 11, if it is necessary to slide several sliders 11, pull the connecting column 33, so that the connecting column 33 drives the rectangular plate 32 to slide in the direction away from the rectangular frame 31, and then let the connecting column 33 with the rubber ring 34 enter the groove 35 of another slider 11 to be clamped and fixed. When the ring 34 enters the groove 35, it will squeeze the hollow ring 381 inside, and the gas in the hollow ring 381 will flow into the elastic ball 383 through the hose, so that the elastic ball 383 is filled with gas and expands, and then drive the rotating plate 382 to rotate and hit the connecting plate 18, so as to remove the impurities remaining on the surface of the connecting plate 18 and the scraper 17, and facilitate the subsequent connection plate 18 and the scraper 17 to efficiently clean the iron filings in the chute 3. When the ring 34 of the connecting column 33 is completely clamped in the groove 35, the hollow ring 381 is no longer squeezed, so the gas in the elastic ball 383 flows back to the hollow ring 381 through the hose, and the rotating plate 382 is also reset, which is convenient for subsequent work. After the slider 11 is used, the connecting column 33 needs to be removed from the groove 35 so that the sliders 11 are no longer connected to each other. The connecting column 33 is separated from the groove 35, and the rectangular plate 32 is reset under the action of the elastic member 36, so that the gas in the elastic member 36 enters the hole of the fixing frame 37 through the air pipe and is blown out.

[0056] Long-term processing of different engine cylinder blocks 4 requires frequent tightening of the bolts 15. After the rectangular plate 32 is reset, the rectangular plate 32 is pushed to slide into the rectangular frame 31 again. The top plate 391 on one side of the rectangular plate 32 is used to squeeze the rubber storage box 393, so that the maintenance liquid in the storage box 393 is sprayed to the bolts 15 through the spray pipe 394, thereby performing maintenance work on the bolts 15.

[0057] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A tool for threading a hole in an engine cylinder block, comprising a machine tool (1), a workbench (2) being mounted on the machine tool (1), a plurality of slide grooves (3) being provided on the top of the workbench (2), and an engine cylinder block (4) being placed on the workbench (2); Features: The workbench (2) is provided with a plurality of positioning fixtures (10), the positioning fixtures (10) comprising a slider (11) sliding in a slide groove (3), a pressure plate (12) being slidably connected to the slider (11), a gasket (13) being fixedly installed at the bottom of the pressure plate (12), a crossbeam (14) being screwed to one side of the slider (11), a bolt (15) being threadedly connected to the top of the crossbeam (14), rolling balls (16) being wedged on both sides of the slider (11), and scrapers (17) being fixedly installed on both sides of the slider (11); An anti-slip mechanism (20) is provided on one side of the pressing plate (12), and a connecting mechanism (30) is provided on one side of the sliding block (11).

2. The tooling for thread processing of engine cylinder block holes according to claim 1, characterized in that: A connecting plate (18) is fixedly mounted on the top of the scraper (17); the scraper (17) and the connecting plate (18) are both arc-shaped; the scraper (17) and the connecting plate (18) cooperate to form a semicircular shape.

3. The tooling for thread processing of engine cylinder block holes according to claim 1, characterized in that: The anti-slip mechanism (20) comprises a hollow elastic block (21) fixedly mounted on one side of the pressure plate (12); an air outlet pipe (23) connected to the interior and having a one-way valve is fixedly mounted on the bottom of the elastic block (21); and an air inlet pipe (22) connected to the interior and having a one-way valve is fixedly mounted on the top of the elastic block (21).

4. A tool for threading a hole in an engine cylinder block according to claim 3, characterized in that: A connecting groove (24) is provided in the pressing plate (12) and is connected to the inside of the elastic block (21); a sealing plate (26) is slidably connected to the connecting groove (24) via a spring (25); a magnetic sheet (27) is fixedly installed on a side of the sealing plate (26) away from the spring (25); protective powder is pre-stored in the connecting groove (24); a feed pipe with a one-way valve and connected to the inside of the connecting groove (24) is fixedly installed on the top of the pressing plate (12); a connecting pipe (28) with a one-way valve and connected to the inside of the connecting groove (24) is fixedly installed on the bottom of the pressing plate (12); an end of the connecting pipe (28) away from the connecting groove (24) is connected to the inside of the air outlet pipe (23); A delay component (29) is provided at one end of the air outlet pipe (23) away from the elastic block (21).

5. The tooling for thread processing of engine cylinder block holes according to claim 4, characterized in that: The delay assembly (29) comprises an end cover (291) rotatably connected to the air outlet pipe (23) via a torsion spring, an end of the end cover (291) away from the air outlet pipe (23) is fixedly mounted with an arc-shaped fixing rod (292) made of rubber material, and a fixing groove (293) is provided on the surface of the air outlet pipe (23).

6. The tooling for thread processing of engine cylinder block holes according to claim 1, characterized in that: The connecting mechanism (30) comprises a rectangular frame (31) fixedly mounted on one side of the slider (11); a rectangular plate (32) is slidably connected to the inside of the rectangular frame (31) via an elastic member (36); a brush is fixedly mounted on the bottom of the rectangular plate (32); a connecting column (33) is fixedly mounted on one end of the rectangular plate (32) away from the elastic member (36); a ring (34) made of a rubber material is fixedly sleeved on the surface of the connecting column (33); and a groove (35) is provided on one side of the slider (11) away from the rectangular frame (31).

7. The tooling for thread processing of engine cylinder block holes according to claim 6, characterized in that: The elastic member (36) is a hollow elastic ring. A fixing frame (37) is fixedly installed in the rectangular frame (31). A plurality of holes are provided on a side of the fixing frame (37) close to the rectangular plate (32). The elastic member (36) and the fixing frame (37) are connected via an air pipe.

8. The tooling for threading a hole in an engine cylinder block according to claim 6, characterized in that: A vibration assembly (38) is arranged in the groove (35) of the slider (11), and the vibration assembly (38) comprises a hollow ring (381) fixedly installed in the groove (35); an arc-shaped rotating plate (382) is rotatably connected in the scraper (17) via a torsion spring; a hollow elastic ball (383) is fixedly installed in the scraper (17); the elastic ball (383) is fixedly connected to the rotating plate (382); and the hollow ring (381) and the elastic ball (383) are connected via a hose.

9. The tooling for threading a hole in an engine cylinder block according to claim 7, characterized in that: A spray assembly (39) is arranged in the slider (11), and the spray assembly (39) comprises a loading box (392) installed in the slider (11); a storage box (393) made of rubber material is fixedly installed in the rectangular frame (31); the loading box (392) and the storage box (393) are connected via a liquid guide tube with a one-way valve; a spray pipe (394) connected to the interior and with a one-way valve is fixedly installed on one side of the storage box (393); an end of the spray pipe (394) away from the storage box (393) is close to the bolt (15); and an arc-shaped top plate (391) is fixedly installed on one side of the rectangular plate (32).

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