Coarse and fine integrated boring combined tool for engine cylinder block

Abstract

The invention relates to the technical field of boring cutters, and discloses a rough and fine integrated boring combined cutter for an engine cylinder block, which comprises a cutter bar and a mounting ring, the bottom end of the cutter bar is detachably connected with a boring cutter assembly, the outside of the cutter bar is rotatably connected with a driving assembly, the top end of the driving assembly is fixedly connected with a threaded rod I, and the threaded rod I is fixedly connected with a threaded rod II; the top end of the outer portion of the first threaded rod is in threaded connection with a first clamping block, the outer portion of the first clamping block is fixedly connected with two sliding rods sliding on the inner wall of the cutter bar, a plurality of clamping grooves are formed in the top end of the first clamping block, the top end of the first threaded rod is fixedly connected with a rotating piece, and the outer side of the rotating piece is fixedly connected with clamping strips connected with the clamping grooves in a clamped mode. The top end of the inner wall of the cutter bar is rotationally connected with a locking assembly. Compared with a multi-screw fixing method in the prior art, the engine cylinder boring device is quicker and more convenient, meanwhile, the downtime is shortened, and the engine cylinder boring efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of boring tools, in particular to a rough and fine integrated boring combination tool for an engine cylinder block. Background Art

[0002] Boring tool technology is a processing technology that uses a boring tool to expand the diameter and correct the precision of the drilled hole. The tool rod is used to support the blade for rotary cutting, which can control the hole size, roundness and surface roughness. It is suitable for high-precision hole processing in mechanical manufacturing. It is often used with machine tools to achieve automated operation. It is a key process to improve precision in the field of hole processing.

[0003] When boring an engine cylinder, the appropriate boring tool must be selected based on the cylinder's wear. Positioning the tool relative to the cylinder axis is then performed using a boring machine with slow feed rates. After boring, the cylinder's inner diameter must accurately match the piston size to ensure a tight seal. This directly impacts engine power output and fuel consumption, making it a core process in engine overhaul or manufacturing.

[0004] However, in the prior art, some boring devices use screws to fix the tool rod. When replacing it according to the required boring depth of the engine cylinder, it is necessary to use tools such as wrenches to loosen and tighten it multiple times. The process is cumbersome and greatly increases the downtime, thereby reducing the boring efficiency.

[0005] Therefore, in order to solve the above problems, a rough and fine integrated boring combination tool for engine cylinder block is proposed. Summary of the Invention

[0006] In order to make up for the above shortcomings, the present invention provides an integrated rough and fine boring combination tool for engine cylinder blocks, aiming to improve the problem in the prior art that the process of assembling the tool rod is too complicated, increases downtime, and reduces boring efficiency.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] The top end of the guide rail is fixedly provided with a toothed plate, and the outer end of the guide rail is fixedly provided with a toothed plate, and the toothed plate is fixedly provided with a toothed plate, and the toothed plate is fixedly provided with a toothed plate.

[0009] As a further description of the above technical solution:

[0010] The boring tool assembly includes a tool head, the top end of the tool head is detachably connected to the bottom end of the tool rod, a rough boring blade is provided on the surface of the tool head, and a fine boring blade is also provided on the surface of the tool head;

[0011] As a further description of the above technical solution:

[0012] The driving assembly includes a rotating ring, the inner wall of the rotating ring is rotatably connected to the outside of the knife rod, a rotating groove is opened inside the knife rod, the inner wall of the rotating ring is fixedly connected to two rotating blocks sliding on the inner wall of the rotating groove, the inner sides of the two rotating blocks are fixedly connected to a rotating plate, and the bottom end of the threaded rod is fixedly connected to the top end of the rotating plate;

[0013] As a further description of the above technical solution:

[0014] The locking assembly includes a rotating column, the top end of which is rotatably connected to the top end of the inner wall of the knife rod, the top end of which is fixedly connected to a clamping ring that is engaged with the top end of the inner wall of the knife rod, and the top end of the second clamping block is fixedly connected to the bottom end of the rotating column;

[0015] As a further description of the above technical solution:

[0016] The outside of the knife rod is fixedly connected to a plurality of limit strips, and the outside of the limit strips is slidably connected to the inner wall of the mounting ring;

[0017] As a further description of the above technical solution:

[0018] The bottom end of the rotating plate is fixedly connected to a threaded rod second, the outer bottom end of the threaded rod second is threadedly connected to a pressure plate, the bottom end of the pressure plate is fixedly connected to two slide plates that slide on the inner wall of the knife rod, the inner wall of the slide is slidably connected to two sliding posts, one end of the sliding post is fixedly connected to a limited block, two springs are provided inside the slide, the other ends of the two sliding posts are fixedly connected to a card frame, the bottom end of the inner wall of the knife rod is fixedly connected to a baffle, and the top end of the cutter head is fixedly connected to a card block three that is clamped with the two card frames;

[0019] As a further description of the above technical solution:

[0020] The top end of the cutter head contacts the bottom end of the baffle, and the outer portion of the clamping block 3 is slidably connected to the inner wall of the baffle;

[0021] As a further description of the above technical solution:

[0022] One end of the spring is fixedly connected to one side of the inner wall of the slide plate, and the other end of the spring is fixedly connected to one side of the limiting block.

[0023] The present invention has the following beneficial effects:

[0024] 1. In the present invention, when the cutter bar needs to be adjusted according to the depth of the boring required by the engine cylinder, the rotating ring can be rotated to drive the rotating plate and the threaded rod to rotate. At this time, the threaded rod drives the clamping block 1 and the sliding rod to rise. When the clamping block 1 moves to the top end of the threaded rod 1, which is the critical value of the clamping block 1 rising, the clamping strip will be inserted into the clamping groove, and the clamping block 2 and the clamping block 1 will be engaged and combined. At this time, the threaded rod 1 will drive the clamping block 1 and the clamping block 2 to rotate, and the rotation driven by the clamping block 2 will drive the clamping plate to rotate until it extends to the outside of the cutter bar and completes the engagement with the mounting ring. At this time, the clamping ring will also rotate to the inner wall of the top end of the cutter bar to complete the locking, thereby completing the quick assembly of the cutter bar. Compared with the method of fixing with multiple screws in the prior art, it is faster and more convenient, while reducing downtime, and greatly improving the efficiency of boring the engine cylinder.

[0025] 2. In the present invention, the cutter head is first inserted into the bottom end of the cutter rod until the cutter head contacts the baffle. At this time, the card frame will slide into the inner wall of the card block three and continue to slide down along the slope. At this time, the rotating plate will drive the threaded rod two to rotate while rotating, thereby pulling the slide plate upward, so that the card frame and the card block three are connected, completing the rapid assembly of the cutter head. Because the threaded rod one and the threaded rod two operate synchronously, when the staff needs to replace the cutter head according to the boring diameter of the engine cylinder, the synchronous assembly of the cutter rod and the cutter head can be directly completed, which greatly speeds up the assembly speed and further improves the boring efficiency of the engine cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1This is a three-dimensional schematic diagram of a rough and fine integrated boring tool for an engine cylinder block proposed by the present invention;

[0027] Figure 2 This is a structural schematic diagram of a clamping plate of a combined roughing and finishing boring tool for an engine cylinder block proposed by the present invention;

[0028] Figure 3 This is an exploded view of the structure of the swivel of a combined rough and fine integrated boring tool for an engine cylinder block proposed by the present invention;

[0029] Figure 4 This is a structural schematic diagram of a clamping block 2 of a combined roughing and finishing boring tool for an engine cylinder block proposed by the present invention;

[0030] Figure 5 Figure 4 A magnified view of point A;

[0031] Figure 6 This is a schematic structural diagram of a pressure plate of a combined roughing and finishing boring tool for an engine cylinder block proposed by the present invention;

[0032] Figure 7 This is a schematic structural diagram of a slide plate of a combined roughing and finishing boring tool for an engine cylinder block proposed by the present invention;

[0033] Figure 8 This is a schematic structural diagram of a tool head for a rough and fine integrated boring combination tool for an engine cylinder block proposed by the present invention.

[0034] Legend:

[0035] 1. Tool bar; 2. Tool head; 3. Rough boring blade; 4. Fine boring blade; 5. Swivel; 6. Swivel groove; 7. Swivel block; 8. Swivel plate; 9. Threaded rod (1); 10. Clamping block (1); 11. Sliding rod; 12. Clamping groove; 13. Swivel plate; 14. Clamping strip; 15. Clamping block (2); 16. Clamping plate; 17. Limiting column; 18. Mounting ring; 19. Limiting strip; 20. Swivel column; 21. Clamping ring; 22. Threaded rod (2); 23. Pressure plate; 24. Slide plate; 25. Sliding column; 26. Limiting block; 27. Spring; 28. Clamping frame; 29. Baffle; 30. Clamping block (3). DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] Reference Figures 1 to 3The present invention provides an embodiment: a rough and fine integrated boring combination tool for an engine cylinder block, comprising a tool rod 1 and a mounting ring 18, wherein the mounting ring 18 is a place for mounting a boring tool on a boring device, and the bottom end of the tool rod 1 is detachably connected to a boring tool assembly, which comprises a tool head 2, the top end of the tool head 2 is detachably connected to the bottom end of the tool rod 1, and a rough boring blade 3 is provided on the surface of the tool head 2, wherein the rough boring blade 3 is used to remove excess waste material in the hole, and a fine boring blade 4 is also provided on the surface of the tool head 2, wherein the fine boring blade 4 is used to perform more fine boring on the inner wall of the hole.

[0038] The outer rotation of the knife bar 1 is connected with a driving assembly, which includes a swivel 5. The inner wall of the swivel 5 is rotatably connected to the outer side of the knife bar 1. A rotation groove 6 is opened inside the knife bar 1. The inner wall of the swivel 5 is fixedly connected to two swivel blocks 7 that slide on the inner wall of the rotation groove 6. The inner sides of the two swivel blocks 7 are fixedly connected with a rotating plate 8. When the swivel 5 here is rotated, the two swivel blocks 7 and the rotating plate 8 can be driven to rotate together. The rotating block 7 here not only plays the role of connecting the swivel 5 and the rotating plate 8, but also limits the maximum rotation of the swivel 5, acting as a limit The top of the driving assembly is fixedly connected with a threaded rod 9, and the bottom end of the threaded rod 9 is fixedly connected to the top of the rotating plate 8. When the rotating plate 8 rotates, the threaded rod 9 here can be driven to rotate together. The external top of the threaded rod 9 is threadedly connected with a block 10, and the outside of the block 10 is fixedly connected with two sliding rods 11 sliding on the inner wall of the knife rod 1. Because the sliding rod 11 here will first limit the block 10 so that it can only slide upward, so when the threaded rod 9 rotates, it can drive the block 10 here to slide upward.

[0039] Reference Figure 2 、 Figure 4 and Figure 5The top of the card block 10 is provided with a plurality of card slots 12, and the top of the threaded rod 19 is fixedly connected with a rotating piece 13. When the threaded rod 9 rises, it will also drive the rotating piece 13 here to rotate. The outer side of the rotating piece 13 is fixedly connected with a card strip 14 that is engaged with the card slot 12. When the card block 10 rises to a critical value, the card strip 14 here will complete the engagement with the card block 10. At this time, the card block 10 will no longer rise but rotate, and the slide rod 11 here will rotate along with it (a limiting groove is opened on the inner wall of the knife bar 1 here to limit the maximum range of rotation of the slide rod 11. At the same time, if the staff believes that when the knife bar 1 is disassembled, the slide rod 11 has a problem of being unable to fall and getting stuck, an openable window can be opened at the slide rod 11. This The staff can manually adjust it to cancel the state where the slide rod 11 is stuck in its sliding groove), the top end of the inner wall of the knife rod 1 is rotatably connected to a locking assembly, and the locking assembly includes a rotating column 20, and the top end of the rotating column 20 is rotatably connected to the top end of the inner wall of the knife rod 1, and the top end of the rotating column 20 is fixedly connected to a clamping ring 21 that is clamped with the top end of the inner wall of the knife rod 1, and the bottom end of the locking assembly is fixedly connected to a clamping block 2 15 that is clamped with the clamping block 10, and the top end of the clamping block 2 15 is fixedly connected to the bottom end of the rotating column 20. When the clamping block 10 rises to the critical value, it is just clamped with the clamping block 2 15 here. At the same time, the rotation of the clamping block 10 will drive the clamping block 2 15 to rotate together, and the clamping block 2 15 here will drive the rotating column 20 and the clamping ring 21 to rotate when rotating.

[0040] The outer side of the second clamping block 15 is rotatably connected to a plurality of clamping plates 16 that are engaged with the mounting ring 18. At this time, the second clamping block 15 drives the clamping plates 16 to rotate, so that they engage with the slots provided on the mounting ring 18. At the same time, the clamping ring 21 on the rotating column 20 also rotates to the slot at the top of the inner wall of the tool arbor 1 and engages with it, thereby completing the locking. The inner wall of the clamping plate 16 is slidably connected to a limit column 17 fixed to the inner wall of the tool arbor 1. The limit column 17 here mainly limits the rotation angle of the clamping plate 16 so that it can complete the precise engagement with the mounting ring 18. The outer side of the tool arbor 1 is fixedly connected to a plurality of limit bars 19. The outer side of the limit bars 19 is slidably connected to the inner wall of the mounting ring 18. The limit bars 19 here ensure that the running trajectory of the tool arbor 1 when inserted into the mounting ring 18 is a straight line to prevent deviation.

[0041] Reference Figure 4 、 Figure 6 and Figure 7The bottom end of the rotating plate 8 is fixedly connected to a threaded rod 22. The number of threads of the threaded rod 22 here is less than that of the threaded rod 1 9. Therefore, when the two rotate, the distances moved by the structures on them are also different. The outer bottom end of the threaded rod 22 is threadedly connected to a pressure plate 23. When the rotating plate 8 here rotates, it will simultaneously drive the threaded rod 22 to rotate, and the threaded rod 22 will continue to drive the pressure plate 23 to move upward. The bottom end of the pressure plate 23 is fixedly connected to two slides 24 that slide on the inner wall of the knife rod 1. The slide 24 here will move up with the pressure plate 23. The inner wall of the slide 24 is slidably connected to two slide posts 25. One end of the slide post 25 is fixedly connected to a limit block 26. The limit block 26 here limits the maximum sliding distance of the slide post 25. Two springs 27 are arranged inside the slide 24. One end of the spring 27 is fixedly connected to one side of the inner wall of the slide 24, and the other end of the spring 27 is fixedly connected to one side of the limit block 26. Figure 7 The spring 27 shown in the figure is in a normal state and has no force. The other ends of the two slide columns 25 are fixedly connected to the card frame 28. The bottom end of the inner wall of the shank 1 is fixedly connected to the baffle 29. The top end of the cutter head 2 is in contact with the bottom end of the baffle 29. The contact state here is the situation when the cutter head 2 is installed. Figure 6 The figure does not show the situation where the cutter head 2 is inserted to the end.

[0042] Reference Figures 6 to 8 The top of the cutter head 2 is fixedly connected to a block three 30 that is engaged with two card frames 28. The outside of the block three 30 is slidably connected to the inner wall of the baffle 29. When the cutter head 2 is inserted into the bottom end of the knife rod 1 and inserted to the bottom, the top of the cutter head 2 here will fit tightly with the bottom end of the baffle 29. At the same time, the bottom end of the card frame 28 will slide into the inner wall of the block three 30 and continue to slide down along the slope of the slot. At this time, the spring 27 is stretched to generate a reaction force, and the threaded rod two 22 will drive the pressure plate 23 and the slide plate 24 to move upward when rotating, so that they form a card connection relationship with the slot on the surface of the block three 30, thereby completing the installation of the cutter head 2.

[0043] Working Principle: When installing the tool, insert the cutter head 2 into the bottom end of the cutter bar 1. When the top of the cutter head 2 is tightly fitted against the baffle 29, the clamping frame 28 slides down along the groove on the inner wall of the clamping block 3 30, simultaneously stretching the spring 27 to generate a reaction force. At this point, rotating ring 5 rotates, causing the rotating block 7 to rotate the rotating plate 8. The rotation of the rotating plate 8 also rotates the threaded rod 22, causing the pressure plate 23 and the slide plate 24 to move upward, ultimately engaging with the groove on the surface of the clamping block 30, completing the secure installation of the cutter head 2. The reaction force of the spring 27 also ensures the stability of the connection between the two.

[0044] When the rotating block 7 drives the rotating plate 8 to rotate, it also drives the threaded rod 1 9 here to rotate. Due to the limiting effect of the slide rod 11, the clamping block 10 slides upward along the inner wall of the knife bar 1. When the clamping block 10 rises to the critical value (the top of the threaded rod 1 9), the clamping groove 12 on it engages with the clamping strip 14 of the rotating plate 13, and the clamping block 10 switches from rising to rotating, driving the slide rod 11 to rotate within the groove on the inner wall of the knife bar 1. The rotation of the clamping block 10 is transmitted to the clamping block 2 15, causing the rotating column 20 and the clamping ring 21 to rotate. The clamping block 2 15 drives the clamping plate 16 to rotate and engage with the mounting ring 18. The clamping ring 21 also engages with the groove at the top of the inner wall of the knife bar 1, completing the locking of the knife bar 1 and the mounting ring 18, achieving power transmission.

[0045] During the boring process, the rough boring blade 3 on the cutter head 2 first performs preliminary cutting on the hole to remove excess waste. Subsequently, the fine boring blade 4 performs fine boring on the inner wall of the hole to improve the surface accuracy. It is worth noting that the number of threads of the threaded rod 1 9 and the threaded rod 2 22 is different, and the movement distance of the structure above them when rotating is also different. This design can achieve different transmission effects and meet the simultaneous installation of the above-mentioned cutter head 2 and the mounting ring 18. This two-way drive design can not only help the staff to replace the cutter rod 1 according to the depth of the engine cylinder, but also disassemble the cutter head 2 at the same time, so that the staff can replace the rough boring blade 3 and fine boring blade 4 suitable for different engine cylinder hole diameters in a timely manner, greatly reducing the assembly steps, while reducing downtime and improving the efficiency of boring.

[0046] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A combined tool for roughing and finishing integrated boring of an engine cylinder block, comprising a tool bar (1) and a mounting ring (18), characterized in that: The bottom end of the tool rod (1) is detachably connected to a boring tool assembly, the outside of the tool rod (1) is rotatably connected to a driving assembly, the top end of the driving assembly is fixedly connected to a threaded rod (9), the top end of the outside of the threaded rod (9) is threadedly connected to a clamping block (10), the outside of the clamping block (10) is fixedly connected to two sliding rods (11) that slide on the inner wall of the tool rod (1), the top end of the clamping block (10) is provided with a plurality of slots (12), the top end of the threaded rod (9) is fixedly connected to the There is a rotating plate (13), the outer side of the rotating plate (13) is fixedly connected to a clamping strip (14) clamped with the clamping groove (12), the top end of the inner wall of the knife rod (1) is rotatably connected to a locking assembly, the bottom end of the locking assembly is fixedly connected to a clamping block 2 (15) clamped with a clamping block 1 (10), the outer side of the clamping block 2 (15) is rotatably connected to a plurality of clamping plates (16) clamped with a mounting ring (18), and the inner wall of the clamping plate (16) is slidably connected to a limiting column (17) fixed to the inner wall of the knife rod (1).

2. The engine block roughing and finishing integrated boring tool according to claim 1, characterized in that: The boring tool assembly comprises a cutter head (2), the top end of the cutter head (2) is detachably connected to the bottom end of the cutter rod (1), a rough boring blade (3) is provided on the surface of the cutter head (2), and a fine boring blade (4) is also provided on the surface of the cutter head (2).

3. The engine block roughing and finishing integrated boring tool according to claim 2, characterized in that: The driving assembly includes a rotating ring (5), the inner wall of the rotating ring (5) is rotatably connected to the outside of the knife rod (1), a rotating groove (6) is provided inside the knife rod (1), the inner wall of the rotating ring (5) is fixedly connected to two rotating blocks (7) sliding on the inner wall of the rotating groove (6), the inner sides of the two rotating blocks (7) are fixedly connected to a rotating plate (8), and the bottom end of the threaded rod (9) is fixedly connected to the top end of the rotating plate (8).

4. The engine block roughing and finishing integrated boring tool according to claim 1, characterized in that: The locking assembly includes a rotating column (20), the top end of which is rotatably connected to the top end of the inner wall of the knife rod (1), the top end of which is fixedly connected to a clamping ring (21) that is clamped to the top end of the inner wall of the knife rod (1), and the top end of the second clamping block (15) is fixedly connected to the bottom end of the rotating column (20).

5. The engine block roughing and finishing integrated boring tool according to claim 1, characterized in that: The outside of the knife rod (1) is fixedly connected to a plurality of limit strips (19), and the outside of the limit strips (19) is slidably connected to the inner wall of the mounting ring (18).

6. The engine block roughing and finishing integrated boring tool according to claim 3, characterized in that: The bottom end of the rotating plate (8) is fixedly connected to a threaded rod 2 (22), the outer bottom end of the threaded rod 2 (22) is threadedly connected to a pressure plate (23), the bottom end of the pressure plate (23) is fixedly connected to two slides (24) sliding on the inner wall of the knife rod (1), the inner wall of the slide (24) is slidably connected to two slide posts (25), one end of the slide post (25) is fixedly connected to a limit block (26), two springs (27) are provided inside the slide (24), the other ends of the two slide posts (25) are fixedly connected to a card frame (28), the bottom end of the inner wall of the knife rod (1) is fixedly connected to a baffle (29), and the top end of the cutter head (2) is fixedly connected to a card block 3 (30) that is clamped with the two card frames (28).

7. The engine block roughing and finishing integrated boring tool according to claim 6, characterized in that: The top end of the cutter head (2) contacts the bottom end of the baffle (29), and the outside of the clamping block (30) is slidably connected to the inner wall of the baffle (29).

8. The engine block roughing and finishing integrated boring tool according to claim 6, characterized in that: One end of the spring (27) is fixedly connected to one side of the inner wall of the slide plate (24), and the other end of the spring (27) is fixedly connected to one side of the limit block (26).

Images