Heat treatment device for engine cylinder block

Abstract

The utility model discloses a heat treatment device for an engine cylinder block, which belongs to the technical field of heat treatment of engine cylinder blocks and comprises a workbench, transverse electric sliding rails are arranged on two sides of the outside of the workbench, transverse sliding blocks are arranged on the outer sides of the transverse electric sliding rails, a mounting frame is arranged at the top of the transverse sliding blocks, and longitudinal electric sliding rails are arranged on the top wall of the inner side of the mounting frame. A longitudinal sliding block is arranged on the outer side of the longitudinal electric sliding rail, a protective sleeve is arranged at the bottom of the longitudinal sliding block, a telescopic rod is arranged in the protective sleeve, a grinding motor is arranged at the bottom end of the telescopic rod, a boring cutter is arranged at the output end of the grinding motor, and a flame nozzle is arranged at the bottom end of the telescopic rod through a mounting block. A gas pipe communicated with the telescopic pipe in a sealed mode is arranged at the top of the mounting frame, combustible gas is guided into the telescopic pipe from the outside through the gas pipe, then the combustible gas is sprayed out through the fire spraying nozzle, the surface of the cylinder body is continuously heated, the stability of the surface temperature of the cylinder body is guaranteed, the cooling speed of the cylinder body is reduced, and therefore the purpose of improving the machining efficiency is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of engine cylinder body heat processing, and in particular relates to an engine cylinder body heat treatment device. Background Art

[0002] With the improvement of people's living standards, cars have gradually become popular, bringing convenience to people's travel. Automobile engine cylinder is one of the important parts of automobiles. Due to the frequent operation of automobile engine cylinder, it is easy to cause wear, which can be divided into normal wear and abnormal wear. Normal wear means that the upper part of the cylinder is the worst lubricated, the piston ring runs at the upper and lower dead points at speeds close to 0, the oil film is not easy to form, and the cylinder is worn into a larger upper part and a smaller lower part, or the blowing and flushing of the intake air dilutes the lubricating oil on the cylinder wall and forms more corrosive components.

[0003] At present, in the existing engine cylinder block heat treatment device, when the cylinder block is heat treated, the inside of the cylinder needs to be sleeved and the cylinder block is polished with a boring tool. As the cylinder block is separated from the heating furnace, the temperature of the cylinder block gradually decreases, so the cylinder block needs to be returned to the furnace for heating after it drops to a certain temperature, otherwise it will be difficult to continue processing. In addition, during the processing, the high-temperature metal chips generated may adhere to the screw that drives the boring tool to rise and fall, causing the screw thread to be blocked and reducing the smoothness of the boring tool rising and falling. For this reason, we propose an engine cylinder block heat treatment device. Utility Model Content

[0004] The purpose of the utility model is to provide an engine cylinder heat treatment device to solve the existing problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an engine cylinder block heat treatment device, comprising a workbench, a protective sleeve and a flamethrower, the top of the workbench is provided with a transmission roller, the two sides of the outside of the workbench are provided with transverse electric slide rails, the outer side of the transverse electric slide rail is provided with a transverse slider, the top of the transverse slider is fixedly installed with a mounting frame, the inner top wall of the mounting frame is provided with a longitudinal electric slide rail, the outer side of the longitudinal electric slide rail is provided with a longitudinal slider, the bottom of the longitudinal slider is fixedly welded with a protective sleeve, the inner side of the protective sleeve is slidably connected with a telescopic rod, the bottom end of the telescopic rod is fixedly installed with a grinding motor, the end of the output shaft of the grinding motor is provided with a boring tool, the bottom end of the telescopic rod is fixedly welded with a mounting block, a plurality of flamethrowers are obliquely arranged on the bottom of the mounting block, the plurality of flamethrowers are all sealed and connected with the telescopic tube at the top of the mounting block, the top of the mounting frame is provided with an air pipe sealed and connected with the telescopic tube, and the other end of the air pipe is sealed and connected with an external air source.

[0006] Preferably, a contraction groove is provided inside the protective sleeve, the top wall of the contraction groove is movably connected to a screw rod through a bearing, a driving motor is provided on the top of the screw rod, the output shaft end of the driving motor is fixedly connected to the top of the screw rod, a threaded groove is provided inside the telescopic rod, and the screw rod is threadedly connected to the inner wall of the telescopic rod through the threaded groove.

[0007] Preferably, a scraper ring is provided at the bottom of the protective sleeve, and the inner ring of the scraper ring is in close contact with the surface of the telescopic rod.

[0008] Preferably, limit blocks are provided on both sides of the top end of the telescopic rod, and the limit blocks are fixedly connected to the telescopic rod by welding.

[0009] Preferably, the inner wall surfaces on both sides of the protective sleeve are provided with limiting grooves, and the limiting blocks extend into the limiting grooves and are slidably connected to the inner walls thereof.

[0010] Preferably, hydraulic devices are fixedly installed on both sides of the middle end of the top of the workbench, and clamping plates are fixedly provided on the opposite sides of the hydraulic devices.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. By setting flame nozzles on both sides of the bottom of the telescopic rod, the combustible gas is introduced into the inside of the telescopic tube from the outside through the air pipe, and then sprayed out by the flame nozzle to continuously heat the surface of the cylinder body. During the processing, the surface temperature of the cylinder body is kept stable, and the speed of cooling the cylinder body is reduced, thereby achieving the purpose of improving the processing efficiency.

[0013] 2. Protect the screw by setting a protective sleeve on the outside of the screw to prevent high-temperature metal chips from splashing into the screw threads, and use a scraper ring to scrape the surface of the telescopic rod when the telescopic rod is retracted to prevent the attached metal chips from entering the inside of the protective sleeve through the gap, thereby affecting the smoothness of the telescopic rod lifting and lowering adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a side view structural schematic diagram of the utility model;

[0016] Figure 3 It is a schematic diagram of the cross-sectional structure of the protective sleeve of the utility model.

[0017] In the figure: 1. workbench; 2. horizontal electric slide rail; 3. horizontal slider; 4. mounting frame; 5. longitudinal electric slide rail; 6. longitudinal slider; 7. protective sleeve; 8. driving motor; 9. contraction groove; 10. screw rod; 11. telescopic rod; 12. threaded groove; 13. limit groove; 14. limit block; 15. boring tool; 16. hydraulic device; 17. splint; 18. air pipe; 19. telescopic tube; 20. mounting block; 21. flamethrower; 22. scraper ring; 23. grinding motor. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-3 The utility model provides a technical solution of an engine cylinder heat treatment device: comprising a workbench 1, a protective sleeve 7 and a flamethrower 21, a driving roller is arranged on the top of the workbench 1, transverse electric slide rails 2 are arranged on both sides of the outside of the workbench 1, a transverse slider 3 is arranged on the outside of the transverse electric slide rail 2, a mounting frame 4 is fixedly installed on the top of the transverse slider 3, a longitudinal electric slide rail 5 is arranged on the inner top wall of the mounting frame 4, a longitudinal slider 6 is arranged on the outside of the longitudinal electric slide rail 5, a protective sleeve 7 is fixedly welded on the bottom of the longitudinal slider 6, and a protective sleeve 7 is fixedly welded on the bottom of the longitudinal slider 6. The inside of the sheath tube 7 is slidably connected with a telescopic rod 11, and a grinding motor 23 is fixedly installed inside the bottom end of the telescopic rod 11. A boring tool 15 is provided at the end of the output shaft of the grinding motor 23. A mounting block 20 is fixedly welded to the outside of the bottom end of the telescopic rod 11. A plurality of flame nozzles 21 are obliquely arranged at the bottom of the mounting block 20. The plurality of flame nozzles 21 are all sealed and connected to the telescopic tube 19 at the top of the mounting block 20. An air pipe 18 sealed and connected to the telescopic tube 19 is arranged on the top of the mounting frame 4, and the other end of the air pipe 18 is sealed and connected to an external air source.

[0020] Specifically, a contraction groove 9 is provided inside the protective sleeve 7, and a screw 10 is movably connected to the top wall of the contraction groove 9 through a bearing. A drive motor 8 is provided on the top of the screw 10, and the end of the output shaft of the drive motor 8 is fixedly connected to the top of the screw 10. A threaded groove 12 is provided inside the telescopic rod 11, and the screw 10 is threadedly connected to the inner wall of the telescopic rod 11 through the threaded groove 12.

[0021] Specifically, a scraper ring 22 is provided at the bottom of the protective sleeve 7 , and the inner ring of the scraper ring 22 is in close contact with the surface of the telescopic rod 11 .

[0022] Specifically, limit blocks 14 are provided on both sides of the top of the telescopic rod 11 , and the limit blocks 14 are fixedly connected to the telescopic rod 11 by welding.

[0023] Specifically, the inner wall surfaces on both sides of the protective sleeve 7 are provided with limiting grooves 13 , and the limiting blocks 14 extend into the limiting grooves 13 and are slidably connected with the inner walls thereof.

[0024] Specifically, hydraulic devices 16 are fixedly installed on both sides of the middle end of the top of the workbench 1 , and clamping plates 17 are fixedly provided on the opposite sides of the hydraulic device 16 .

[0025] In this embodiment, when the engine cylinder is subjected to heat treatment, the boring tool 15 is driven by the transverse electric slide rail 2 and the longitudinal electric slide rail 5 to adjust the position, and the boring tool 15 is driven by the grinding motor 23 to grind the cylinder. During the processing, the combustible gas is introduced into the interior of the telescopic tube 19 through the air pipe 18, and then sprayed out by the flame nozzle 21, so that the surface of the cylinder is continuously heated. During the processing, the surface temperature of the cylinder is kept stable, and the speed of cooling the cylinder is reduced, so as to achieve the purpose of improving the processing efficiency. The screw rod 10 and the thread groove 12 are used to drive the telescopic rod 11 to move up and down under the drive of the driving motor 8, and the protective sleeve 7 is used to protect the screw rod 10 to prevent high-temperature metal chips from splashing into the thread of the screw rod 10, which would affect the smoothness of the threaded connection between the screw rod 10 and the thread groove 12. The scraper ring 22 is used to scrape the surface of the telescopic rod 11 when the telescopic rod 11 is contracted to prevent the attached metal chips from entering the interior of the protective sleeve 7 through the gap, which would affect the smoothness of the lifting and lowering adjustment of the telescopic rod 11.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An engine cylinder heat treatment device, comprising a workbench (1), a protective sleeve (7) and a flamethrower (21), characterized in that: The top of the workbench (1) is provided with a transmission roller, and transverse electric slide rails (2) are provided on both sides of the outside of the workbench (1), and a transverse slider (3) is provided on the outside of the transverse electric slide rail (2), and a mounting frame (4) is fixedly installed on the top of the transverse slider (3), and a longitudinal electric slide rail (5) is provided on the inner top wall of the mounting frame (4), and a longitudinal slider (6) is provided on the outside of the longitudinal electric slide rail (5), and a protective sleeve (7) is fixedly welded to the bottom of the longitudinal slider (6), and a telescopic rod (11) is slidably connected to the inside of the protective sleeve (7), and the telescopic rod (11) is fixedly connected to the bottom of the protective sleeve (7). A grinding motor (23) is fixedly installed inside the bottom end of the telescopic rod (11), and a boring tool (15) is provided at the end of the output shaft of the grinding motor (23). A mounting block (20) is fixedly welded outside the bottom end of the telescopic rod (11), and a plurality of flame spray nozzles (21) are obliquely arranged at the bottom of the mounting block (20). The plurality of flame spray nozzles (21) are all sealed and connected to a telescopic tube (19) at the top of the mounting block (20). An air pipe (18) sealed and connected to the telescopic tube (19) is arranged at the top of the mounting frame (4), and the other end of the air pipe (18) is sealed and connected to an external air source.

2. The engine cylinder heat treatment device according to claim 1, characterized in that: A contraction groove (9) is provided inside the protective sleeve (7), a screw rod (10) is movably connected to the top wall of the contraction groove (9) via a bearing, a driving motor (8) is provided on the top of the screw rod (10), an output shaft end of the driving motor (8) is fixedly connected to the top of the screw rod (10), a thread groove (12) is provided inside the telescopic rod (11), and the screw rod (10) is threadedly connected to the inner wall of the telescopic rod (11) via the thread groove (12).

3. The engine cylinder heat treatment device according to claim 1, characterized in that: A scraper ring (22) is provided at the bottom of the protective sleeve (7), and the inner ring of the scraper ring (22) is in close contact with the surface of the telescopic rod (11).

4. The engine cylinder heat treatment device according to claim 1, characterized in that: Limit blocks (14) are provided on both sides of the top end of the telescopic rod (11), and the limit blocks (14) are fixedly connected to the telescopic rod (11) by welding.

5. The engine cylinder heat treatment device according to claim 4, characterized in that: The inner wall surfaces on both sides of the protective sleeve (7) are provided with limiting grooves (13), and the limiting blocks (14) extend into the limiting grooves (13) and are slidably connected to the inner walls thereof.

6. The engine cylinder heat treatment device according to claim 1, characterized in that: Hydraulic devices (16) are fixedly installed on both sides of the middle end of the top of the workbench (1), and clamping plates (17) are fixedly arranged on the opposite sides of the hydraulic device (16).

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