Boring tool for aluminum alloy connecting rod

Abstract

The utility model discloses an aluminum alloy connecting rod boring cutter, and relates to the technical field of boring cutters. Comprising a cutter bar, a conveying flow channel is formed in the cutter bar, a cutter head is installed at the bottom end of the cutter bar, the top of the cutter head is of an opening structure, a cavity is formed in the cutter head, the cutter head is composed of an installation end and a machining end which are integrally formed, the installation end is located above the machining end, the machining end is of a triangular prism structure, and positioning grooves are formed in the three side faces of the machining end. A positioning groove is formed in the machining end, a first flow channel and a second flow channel are formed in the machining end and located on the two sides of the positioning groove respectively, an L-shaped blade is installed on the inner side of the positioning groove, and the L-shaped blade is composed of a flow deflector and a positioning piece which are perpendicular to each other. And the cooling effect on the L-shaped blade and the aluminum alloy connecting rod is enhanced, so that abrasion of the L-shaped blade is reduced, and the situation that the machining precision is affected due to thermal deformation of the aluminum alloy connecting rod is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of boring tools, in particular to an aluminum alloy connecting rod boring tool. Background Art

[0002] Aluminum alloy connecting rods have good strength and rigidity. In the automobile suspension system, they can reduce the weight of the suspension system and improve the car's handling and fuel economy. In the production process of aluminum alloy connecting rods, the connecting rods need to be bored to improve the dimensional accuracy, shape accuracy and position accuracy of the connecting rod holes.

[0003] For example, a tool for drilling and boring holes in automobile engine connecting rods with patent announcement number CN219683987U includes a tool handle, and a mounting mechanism is arranged on the outside of the tool handle near the tool head. The mounting mechanism includes a mounting sleeve sleeved on the outside of the tool handle, and a limit rod is arranged through the outside of the mounting sleeve; a clamping mechanism is arranged on the outside of the tool head on one side of the mounting sleeve, and the clamping mechanism includes a clamping sleeve installed at one end of the mounting sleeve, and a second clamping plate and a first clamping plate are arranged on the inner side of the clamping sleeve from left to right. This solution can avoid the poor stability of the tool head affecting the drilling and boring operation of the automobile engine connecting rod, and the tool head and the tool handle can be quickly installed and used, effectively improving its work efficiency.

[0004] However, the above scheme still has some shortcomings. For example, the cooling effect on the cutter head is poor. When processing the aluminum alloy connecting rod, it is easy to generate more heat, which causes the aluminum alloy connecting rod to deform due to heat, affecting the processing accuracy of the connecting rod, and easily aggravates the wear of the cutter head. In addition, when the cutter head is worn, the entire cutter head needs to be replaced, resulting in high production costs. In view of this, the utility model proposes an aluminum alloy connecting rod boring tool. Utility Model Content

[0005] The utility model aims to provide an aluminum alloy connecting rod boring tool to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an aluminum alloy connecting rod boring tool, comprising a tool rod, a conveying flow channel is arranged inside the tool rod, a tool head is installed at the bottom end of the tool rod, the top of the tool head is an open structure, and a cavity is arranged inside, the tool head is composed of an integrally formed mounting end and a processing end, and the mounting end is located above the processing end, the processing end is a triangular prism structure, and positioning grooves are arranged on three sides of the processing end, a first flow channel and a second flow channel are respectively arranged on the processing end and on both sides of the positioning groove, an L-shaped blade is installed on the inner side of the positioning groove, and the L-shaped blade is composed of a guide plate and a positioning plate perpendicular to each other.

[0007] Preferably, an L-shaped groove distributed in a circular array is provided on the circumferential outer wall of the knife rod and near the bottom end, and two groups of parallel distributed limiting rings are provided on the outer wall of the knife rod and above the L-shaped groove, and a fixing sleeve is provided between the upper and lower groups of limiting rings.

[0008] Furthermore, the inner wall of the fixing sleeve is provided with fixing blocks distributed in a circular array, the fixing blocks are slidably connected to the limiting ring on the lower side, the top of the fixing sleeve is rotatably connected to an adjusting nut, and the adjusting nut is threadedly connected to the outer wall of the knife rod.

[0009] Furthermore, a clamping block is provided on the circumferential inner wall of the mounting end near the top, the clamping block is slidably connected to the bottom end of the L-shaped groove and snap-fits with the top end of the L-shaped groove, and a fixing groove is provided on the circumferential outer wall of the mounting end near the top and snap-fits with the fixing block.

[0010] Preferably, the first flow channel and the second flow channel are both obliquely arranged on the processing end and are connected to the cavity. The first flow channel is arranged on the left side of the positioning groove, and the second flow channel is arranged on the right side of the positioning groove, and is composed of multiple groups of flow channel holes distributed in an array.

[0011] Furthermore, three groups of evenly distributed positioning blocks are arranged on the side wall of the processing end and on the inner side of the positioning groove, and a mounting hole is arranged at the center of the positioning groove.

[0012] Preferably, the guide plate is engaged with the first flow channel and extends to the inner side of the cavity, and the side wall of the guide plate is provided with guide grooves distributed in an array.

[0013] Furthermore, the positioning piece is snap-fitted with the positioning groove and fixedly connected with the mounting hole by screws, and a positioning hole corresponding to the positioning block is provided on the positioning piece.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] A boring tool for an aluminum alloy connecting rod is provided with a processing end, a first flow channel and a second flow channel. During boring processing, the cutting fluid can flow out evenly through the first flow channel and the second flow channel and fully contact the surface of an L-shaped blade, thereby enhancing the cooling effect on the L-shaped blade and the aluminum alloy connecting rod, reducing the wear of the L-shaped blade, and preventing the aluminum alloy connecting rod from being deformed due to heat and affecting the processing accuracy.

[0016] At the same time, by setting up multiple groups of L-shaped blades, the boring efficiency can be improved while guiding the cutting fluid to ensure the cooling effect of the L-shaped blade as a whole and the aluminum alloy connecting rod. In addition, the L-shaped blade can be disassembled and replaced during use to avoid replacing the entire cutter head, thereby saving production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the knife bar structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the cutter head structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the processing end structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the cooling channel structure of the cutter head of the utility model;

[0022] Figure 6 This is a schematic diagram of the L-shaped blade structure of the utility model.

[0023] In the figure: 1. tool rod; 11. conveying channel; 12. L-shaped groove; 13. limit ring; 14. fixing sleeve; 15. fixing block; 16. adjusting nut; 2. tool head; 21. cavity; 3. mounting end; 31. clamping block; 32. fixing groove; 4. processing end; 41. positioning groove; 42. first flow channel; 43. second flow channel; 44. positioning block; 45. mounting hole; 5. L-shaped blade; 51. guide plate; 52. guide groove; 53. positioning plate; 54. positioning hole. DETAILED DESCRIPTION

[0024] 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.

[0025] When processing aluminum alloy connecting rods, it is necessary to use a boring machine and a suitable boring tool to process the assembly holes on the connecting rods to achieve the required dimensional accuracy, shape accuracy and position accuracy. The connecting rod boring tool provided by the utility model can be used for aluminum alloy processing to effectively prevent the aluminum alloy connecting rods from being deformed due to heat. When using this tool for boring processing, it is necessary to connect the delivery channel in the tool rod with the external cutting fluid supply pipeline to ensure that the cutting fluid can be continuously delivered to the tool head, thereby ensuring the cooling purpose of the aluminum alloy connecting rod.

[0026] like Figure 1 - Figure 6As shown, the utility model provides a technical solution: an aluminum alloy connecting rod boring tool, comprising a tool rod 1, a conveying flow channel 11 is arranged inside the tool rod 1, a tool head 2 is installed at the bottom end of the tool rod 1, the top of the tool head 2 is an open structure, and a cavity 21 is arranged inside, the tool head 2 is composed of an integrally formed mounting end 3 and a processing end 4, and the mounting end 3 is located above the processing end 4, the processing end 4 is a triangular prism structure, and positioning grooves 41 are arranged on three sides of the processing end 4, a first flow channel 42 and a second flow channel 43 are respectively arranged on the processing end 4 and on both sides of the positioning groove 41, an L-shaped blade 5 is installed on the inner side of the positioning groove 41, and the L-shaped blade 5 is composed of a guide plate 51 and a positioning plate 53 which are perpendicular to each other.

[0027] The tool rod 1 is coaxially driven with the motor equipment of the boring machine. During use, the delivery channel 11 is connected with the external cutting fluid supply pipeline, and the cutting fluid can be continuously delivered to the interior of the cavity 21. During the boring process, the cutting fluid flows out evenly through the first channel 42 and the second channel 43, thereby reducing the wear of the L-shaped blade 5 and lowering the cutting temperature, effectively avoiding thermal deformation of the aluminum alloy connecting rod, and ensuring the processing accuracy of the aluminum alloy connecting rod.

[0028] like Figure 2 As shown, L-shaped grooves 12 distributed in a circular array are provided on the circumferential outer wall of the tool rod 1 and near the bottom end, and two groups of parallel distributed limiting rings 13 are provided on the outer wall of the tool rod 1 and above the L-shaped grooves 12. A fixing sleeve 14 is provided between the upper and lower groups of limiting rings 13. The limiting ring 13 restricts the fixing sleeve 14 and the adjusting nut 16 to prevent the fixing sleeve 14 and the adjusting nut 16 from excessive movement.

[0029] The inner wall of the fixing sleeve 14 is provided with fixing blocks 15 distributed in a circular array, the fixing blocks 15 are slidably connected to the limiting ring 13 on the lower side, the top of the fixing sleeve 14 is rotatably connected with an adjusting nut 16, and the adjusting nut 16 is threadedly connected to the outer wall of the tool rod 1. When the adjusting nut 16 is rotated, the fixing sleeve 14 can be driven to move up and down, and the fixing blocks 15 can be made to slide up and down, thereby facilitating the installation and fixation of the tool head 2.

[0030] like Figure 3 As shown, a clamping block 31 is provided on the circumferential inner wall of the mounting end 3 and near the top. The clamping block 31 is slidably connected to the bottom end of the L-shaped groove 12 and is snap-fitted with the top end of the L-shaped groove 12. A fixing groove 32 is provided on the circumferential outer wall of the mounting end 3 and near the top and is snap-fitted with the fixing block 15.

[0031] When installing the cutter head 2, first slide the clamping block 31 upward along the L-shaped groove 12 and engage with the top of the L-shaped groove 12. Then, rotate the adjusting nut 16 to drive the fixing sleeve 14 to move downward, so that the fixing block 15 engages with the fixing groove 32, and the fixing sleeve 14 is restricted on the outside of the installation end 3, thereby performing multiple fixations on the cutter head 2, improving the stability of the cutter head 2, and preventing the cutter head 2 from loosening during processing.

[0032] like Figure 4 and Figure 5 As shown, the first flow channel 42 and the second flow channel 43 are both obliquely arranged on the processing end 4 and are connected to the cavity 21. The first flow channel 42 is arranged on the left side of the positioning groove 41, and the second flow channel 43 is arranged on the right side of the positioning groove 41, and is composed of a plurality of groups of flow channel holes distributed in an array, which can improve the uniformity of the cutting fluid flowing out of the second flow channel 43. Through the cooperation of the first flow channel 42 and the second flow channel 43, the cutting fluid can flow out evenly on both sides of the L-shaped blade 5 during the processing process, thereby enhancing the cooling effect on the L-shaped blade 5 and the connecting rod.

[0033] Three groups of evenly distributed positioning blocks 44 are arranged on the side wall of the processing end 4 and inside the positioning groove 41 , and a mounting hole 45 is arranged at the center of the positioning groove 41 .

[0034] like Figure 4 and Figure 6 As shown, the guide plate 51 is snap-fitted with the first flow channel 42 and extends to the inner side of the cavity 21. The side wall of the guide plate 51 is provided with an array of guide grooves 52. The snap-fitting of the guide plate 51 with the first flow channel 42 can enhance the fixing effect of the L-shaped blade 5. At the same time, the design of the guide groove 52 can increase the contact area between the L-shaped blade 5 and the cutting fluid, improve the cooling effect, and facilitate the cutting fluid to flow out through the first flow channel 42.

[0035] The positioning piece 53 is snap-fitted with the positioning groove 41 and fixedly connected with the mounting hole 45 by screws, so that the L-shaped blade 5 can be disassembled and replaced during use, avoiding the need to replace the entire cutter head 2, thereby saving production costs. A positioning hole 54 corresponding to the positioning block 44 is provided on the positioning piece 53. The positioning block 44 and the positioning hole 54 cooperate with each other to enhance the positioning effect of the L-shaped blade 5.

[0036] Working principle: First, the cutter head 2 is moved to make the block 31 slide upward along the L-shaped groove 12, and the block 31 is engaged with the top of the L-shaped groove 12. Then, the adjusting nut 16 is rotated to drive the fixing sleeve 14 to move downward, so that the fixing block 15 is engaged with the fixing groove 32, thereby installing and fixing the cutter head 2, and connecting the cavity 21 with the conveying channel 11;

[0037] Furthermore, by matching the positioning block 44 and the positioning hole 54, and using screws to install the L-shaped blade 5 on the inner side of the positioning groove 41, when boring, the cutting fluid flows through the delivery channel 11 to the interior of the cavity 21, and flows out evenly on both sides of the L-shaped blade 5 through the first channel 42 and the second channel 43, thereby cooling the L-shaped blade 5 and the aluminum alloy connecting rod, reducing the wear of the L-shaped blade 5, and preventing the aluminum alloy connecting rod from being deformed due to heat.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood 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 the scope of the present invention is limited by the attached embodiments and their equivalents.

Claims

1. An aluminum alloy connecting rod boring tool, comprising a tool bar, a conveying flow channel is arranged inside the tool bar, and a tool head is installed at the bottom end of the tool bar, characterized in that: The top of the cutter head is an open structure with a cavity arranged inside. The cutter head is composed of an integrally formed mounting end and a processing end, and the mounting end is located above the processing end. The processing end is a triangular prism structure, and positioning grooves are arranged on three sides of the processing end. A first flow channel and a second flow channel are respectively arranged on the processing end and on both sides of the positioning groove. An L-shaped blade is installed on the inner side of the positioning groove, and the L-shaped blade is composed of a guide plate and a positioning plate which are perpendicular to each other.

2. The aluminum alloy connecting rod boring tool according to claim 1, characterized in that: An L-shaped groove distributed in a circular array is provided on the circumferential outer wall of the knife rod near the bottom end, and two groups of parallel distributed limiting rings are provided on the outer wall of the knife rod and above the L-shaped groove, and a fixing sleeve is provided between the upper and lower groups of limiting rings.

3. The aluminum alloy connecting rod boring tool according to claim 2, characterized in that: The inner wall of the fixing sleeve is provided with fixing blocks distributed in an annular array, the fixing blocks are slidably connected to the limiting ring on the lower side, the top of the fixing sleeve is rotatably connected to an adjusting nut, and the adjusting nut is threadedly connected to the outer wall of the knife rod.

4. The aluminum alloy connecting rod boring tool according to claim 1, characterized in that: A clamping block is provided on the circumferential inner wall of the mounting end and near the top. The clamping block is slidably connected to the bottom end of the L-shaped groove and is snap-fitted with the top end of the L-shaped groove. A fixing groove is provided on the circumferential outer wall of the mounting end and near the top and is snap-fitted with the fixing block.

5. The aluminum alloy connecting rod boring tool according to claim 1, characterized in that: The first flow channel and the second flow channel are both obliquely arranged on the processing end and are connected to the cavity. The first flow channel is arranged on the left side of the positioning groove, and the second flow channel is arranged on the right side of the positioning groove, and is composed of multiple groups of flow channel holes distributed in an array.

6. The aluminum alloy connecting rod boring tool according to claim 1, characterized in that: Three groups of evenly distributed positioning blocks are arranged on the side wall of the processing end and located on the inner side of the positioning groove, and a mounting hole is arranged at the center of the positioning groove.

7. The aluminum alloy connecting rod boring tool according to claim 1, characterized in that: The guide plate is engaged with the first flow channel and extends to the inner side of the cavity. The side wall of the guide plate is provided with guide grooves distributed in an array.

8. The aluminum alloy connecting rod boring tool according to claim 1, characterized in that: The positioning piece is snap-fitted with the positioning groove and fixedly connected with the mounting hole by screws. The positioning piece is provided with a positioning hole corresponding to the positioning block.

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