Boring and honing integrated machine tool

Abstract

The invention discloses a boring and honing integrated machine tool and relates to the technical field of boring and honing combined machine tools, the boring and honing integrated machine tool is used for machining a connecting rod with a first through hole and a second through hole, the boring and honing integrated machine tool comprises a machining rotary table, and a limiting device is arranged on the machining rotary table and comprises a pressing device used for pressing the first end of the connecting rod; the positioning device comprises a first positioning rod and a second positioning rod, and when the connecting rod is placed on the machining platform of the machining rotary table, the first positioning rod and the second positioning rod extend into the first through hole and the second through hole correspondingly to position the connecting rod; the first machining device is used for boring the first through hole and the second through hole; the second machining device is used for honing the first through hole and the second through hole; the third machining device is used for removing flanging burrs; the fourth machining device is used for finely trimming the first through hole and the second through hole; on the basis that traditional boring machining is reserved, honing machining is added, boring and honing combined machining is achieved, the machining precision is improved, and the roundness and cylindricity of the first through hole and the second through hole meet the needed requirements.

Description

Technical Field

[0001] The invention relates to the technical field of combined boring and honing machine tools, and in particular to a boring and honing integrated machine tool. Background Art

[0002] Boring is a method of internal machining by rotating and cutting on a workpiece with a tool such as a drill. Boring is often used to machine parts with high precision requirements, such as large holes, flat-bottomed holes, and complex curved surfaces. Boring tools have the characteristics of multiple faces, multiple blades, and multiple teeth, and are suitable for machining straight holes and large-angle, continuous, short-distance curved surfaces. Honing is a process that uses an oilstone installed on a honing head to perform finishing on the inner surface of a workpiece. Honing is usually performed at a low speed, with the oilstone on the honing head pressed against the hole wall of the workpiece to generate a certain contact area and pressure, and then the workpiece is ground in a rotating and reciprocating motion to achieve the purpose of finishing; When processing the connecting rod, since the connecting rod is a split combined structure, usually only the boring process is used, so that the roundness and cylindricality of the hole on the connecting rod cannot meet the precision requirements. Therefore, we proposed a boring and honing integrated machine tool. Summary of the invention

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a boring and honing integrated machine tool.

[0004] The present invention provides a boring and honing integrated machine tool for processing a connecting rod, wherein the two ends of the connecting rod are respectively a first end and a second end, the first end and the second end are respectively provided with a first through hole and a second through hole, and the boring and honing integrated machine tool comprises: A processing turntable, wherein a plurality of processing platforms are arranged circumferentially on the processing turntable, and at least two limiting devices are arranged on the processing platforms for limiting at least two of the connecting rods, and the limiting devices include a clamping assembly for clamping the first end; A positioning device, the positioning device is movably arranged at the bottom of the processing platform, and the positioning device includes a first positioning rod and a second positioning rod, which are used to extend into the first through hole and the second through hole respectively to position the connecting rod; A first processing device, the first processing device is used to perform boring processing on the first through hole and the second through hole; a second processing device, the second processing device being used for honing the first through hole and the second through hole; A third processing device, the third processing device is used to remove the flanging burrs generated by processing; A fourth processing device is used for performing a finishing process on the first through hole and the second through hole.

[0005] According to the technical solution provided by the present invention, the positioning device also includes a moving block, which is connected to an external driving mechanism and can move back and forth along a first direction. The first positioning rod and the second positioning rod are arranged on the top of the moving block. The first positioning rod and the second positioning rod both extend along the first direction and can move along the first direction with the moving block to the first through hole and the second through hole respectively to limit the first through hole and the second through hole.

[0006] According to the technical solution provided by the present invention, the limiting device includes two first limiting columns and two second limiting columns, which are used to limit the connecting rod, and the first limiting column is close to the first end; the clamping assembly includes two first clamping members and one second clamping member, and the two first clamping members are respectively arranged corresponding to the two first limiting columns, and the first clamping member is provided with a groove for accommodating the top of the first limiting column, and there is a first preset distance between the bottom of the second clamping member and the top of the second end.

[0007] According to the technical solution provided by the present invention, the first processing device includes a first workstation and a second workstation, and the first processing part is provided on the first workstation and the second workstation, and the first processing part includes a first processing tool and a second processing tool coaxially fixedly connected in the first direction, the first processing tool is fixedly arranged on the top of the second processing tool, and the diameter of the first processing tool is larger than that of the second processing tool, the first processing tool is used for boring the first through hole, and the second processing tool is used for boring the second through hole, the first workstation is used for processing one of the connecting rods, and the second workstation is used for processing the other connecting rod.

[0008] According to the technical solution provided by the present invention, the second processing device includes a third station, a fourth station and a fifth station, and at least two second processing parts are respectively provided on the third station, the fourth station and the fifth station corresponding to at least two of the connecting rods, and the second processing part includes a third processing tool and a fourth processing tool, the third processing tool is used for honing the first through hole, and the fourth processing tool is used for honing the second through hole. The third station is used for rough honing the first through hole and the second through hole, the fourth station is used for semi-finishing honing the first through hole and the second through hole, and the fifth station is used for fine honing the first through hole and the second through hole.

[0009] According to the technical solution provided by the present invention, the third processing device includes a sixth workstation, and at least two third processing parts are arranged on the sixth workstation corresponding to at least two of the connecting rods. The third processing parts include a first brush and a second brush. The first brush is used to remove burrs from the first through hole, and the second brush is used to remove burrs from the second through hole.

[0010] According to the technical solution provided by the present invention, the fourth processing device includes a seventh workstation, and at least two fourth processing parts are arranged on the seventh workstation corresponding to at least two of the connecting rods. The fourth processing part includes a fifth processing tool, and the fifth processing tool corresponds to the first through hole and is used for finishing the first through hole.

[0011] According to the technical solution provided by the present invention, the fourth processing device also includes an eighth workstation, and at least two fifth processing parts are arranged on the eighth workstation corresponding to at least two of the connecting rods. The fifth processing part includes a sixth processing tool, and the sixth processing tool corresponds to the second through hole and is used for finishing the second through hole.

[0012] According to the technical solution provided by the present invention, it also includes a loading device, the loading device includes a ninth workstation, the positioning device is arranged corresponding to the ninth workstation, the loading device also includes a conveying component for conveying the connecting rod to be processed, the conveying component has an input end, and at least two branches are arranged on the conveying component, and the end of the branch away from the input end is the output end, and the loading device also includes a robotic arm for placing the connecting rod conveyed to at least two output ends on the ninth workstation at the same time.

[0013] In summary, the technical solution of the present invention specifically discloses a boring and honing integrated machine tool for processing a connecting rod, wherein the two ends of the connecting rod are respectively a first end and a second end, and a first through hole and a second through hole are respectively provided on the first end and the second end, and the boring and honing integrated machine tool comprises a processing turntable, a plurality of processing platforms are arranged on the processing turntable, and a limiting device is arranged on the processing platform for limiting the connecting rod, and the limiting device comprises a clamping device for clamping the first end; and further comprises a positioning device, which is movably arranged at the bottom of the processing platform, and comprises a first positioning rod and a second positioning rod, and when the connecting rod is placed on the processing platform, the first positioning rod and the second positioning rod extend into the first through hole and the second through hole respectively to position the connecting rod; the first processing device is used for boring the first through hole and the second through hole; the second processing device is used for honing the first through hole and the second through hole; the third processing device is used for removing the flanging burrs generated by the processing; the fourth processing device is used for fine finishing of the first through hole and the second through hole; The device is used to process the first through hole and the second through hole on the connecting rod. On the basis of retaining the traditional boring process, the honing process is added to realize the combined processing of boring and honing. Compared with the traditional method of only using boring process, the processing accuracy is improved, so that the roundness and cylindricality of the first through hole and the second through hole meet the required requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1 This is a schematic diagram of the structure of the boring and honing machine tool.

[0015] Figure 2 This is a schematic diagram of the structure of the boring and honing machine tool from the second perspective.

[0016] Figure 3 This is a third-person structural diagram of the boring and honing machine tool.

[0017] Figure 4 This is a top view of the boring and honing machine tool.

[0018] Figure 5 for Figure 1 Enlarged view of point A in the middle.

[0019] Figure 6 for Figure 1 Enlarged view of point B in the middle.

[0020] Figure 7 for Figure 1 Enlarged view of center C.

[0021] Figure 8 for Figure 1 Enlarged view of point D in the middle.

[0022] Fig. 9 for Figure 2 Enlarged view of point E in the middle.

[0023] Fig.10 for Figure 3 Enlarged view of point F in the middle.

[0024] Fig.11 It is a schematic diagram of the positioning device structure.

[0025] Fig.12 Schematic diagram of the robotic arm structure.

[0026] Fig.13 for Fig.12 Enlarged view of point G in the middle.

[0027] Numbers in the figure: 1. connecting rod; 2. first through hole; 3. second through hole; 4. processing turntable; 5. first positioning rod; 6. second positioning rod; 7. moving block; 8. first limiting column; 9. second limiting column; 10. first clamping member; 11. second clamping member; 12. first station; 13. second station; 14. first processing tool; 15. second processing tool; 16. third station; 17. fourth station; 18. fifth station; 19. third processing tool; 20. fourth processing tool; 21. sixth station; 22. first brush; 23. second brush; 24. seventh station; 25. fifth processing tool; 26. eighth station; 27. sixth processing tool; 28. ninth station; 29. ​​branch; 30. robot arm; 31. conveyor belt; 32. supporting block. DETAILED DESCRIPTION

[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It should also be noted that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0029] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] Please refer to Figures 1 to 5 As shown, the integrated boring and honing machine is used to process the connecting rod 1. The connecting rod 1 is a split combined structure, connected by bolts, and the two ends of the connecting rod 1 are respectively a first end and a second end, wherein the projection area of ​​the first end in the first direction is larger than the projection area of ​​the second end in the first direction, the first end has a first through hole 2, the second end has a second through hole 3, and a third through hole is also arranged inside the connecting rod 1, the third through hole extends along the length direction of the connecting rod 1, and the two ends are respectively connected to the first through hole 2 and the second through hole 3. Since the connecting rod 1 is a split combined structure, after the connecting rod 1 is assembled, its first end can have the first through hole 2, so there is a structural connection gap on the inner wall of the first through hole 2, and burrs will appear here after boring. At the same time, since the two ends of the third through hole are respectively connected to the first through hole 2 and the second through hole 3, burrs will also appear at the connection point; the first direction is Figure 1 The middle arrow indicates direction.

[0031] The integrated boring and honing machine tool comprises a first station 12, a second station 13, a third station 16, a fourth station 17, a fifth station 18, a sixth station 21, a seventh station 24, an eighth station 26 and a ninth station 28, which are respectively used for boring, honing, deburring and finishing the first through hole 2 and the second through hole 3; Further, the boring and honing integrated machine tool includes a processing turntable 4, and nine processing platforms are evenly arranged circumferentially on the processing turntable 4, corresponding to the first station 12, the second station 13, the third station 16, the fourth station 17, the fifth station 18, the sixth station 21, the seventh station 24, the eighth station 26 and the ninth station 28, respectively. Thus, the first station 12, the second station 13, the third station 16, the fourth station 17, the fifth station 18, the sixth station 21, the seventh station 24, the eighth station 26 and the ninth station 28 are arranged circumferentially on the processing turntable 4; Furthermore, the integrated boring and honing machine tool comprises a loading device for loading the connecting rod 1; Specifically, the loading device includes a conveying assembly, which includes a conveyor belt 31 for conveying the connecting rods 1 to be processed, and the conveyor belt 31 has an input end, and two branches 29 are arranged on the conveyor belt 31, and the end of the branch 29 away from the input end is the output end; thus, by placing a plurality of connecting rods 1 on the conveyor belt 31 from the input end, the plurality of connecting rods 1 are divided through the two branches 29 and can be respectively conveyed to the two output ends; Furthermore, the loading device also includes a robotic arm 30, which has two clamping jaws. When loading, the two clamping jaws extend into the first through hole 2 and the second through hole 3 respectively, thereby clamping the connecting rod 1, facilitating the loading of the connecting rod 1, and because the conveyor belt 31 has two branches 29, the robotic arm 30 can load two connecting rods 1 at the same time, thereby improving the processing efficiency of the connecting rod 1.

[0032] like Figures 11 to 13 As shown, the loading device includes a ninth station 28, whereby the two connecting rods 1 are placed on the processing platform corresponding to the ninth station 28 by the robot arm 30; Furthermore, it also includes a positioning device, which is movably arranged at the bottom of the processing platform corresponding to the ninth station 28, and is connected to an external driving mechanism and can reciprocate along the first direction; Furthermore, the positioning device further includes a moving block 7, which is connected to the external driving mechanism and driven by the external driving mechanism to reciprocate along the first direction. A first positioning rod 5 and a second positioning rod 6 are arranged on the top of the moving block 7. The first positioning rod 5 and the second positioning rod 6 both extend along the first direction, wherein the first positioning rod 5 corresponds to the first through hole 2, and the second positioning rod 6 corresponds to the second through hole 3; It should be noted that there are two first positioning rods 5 and two second positioning rods 6, respectively, and they are respectively arranged corresponding to the two connecting rods 1. The first positioning rod 5 and the second positioning rod 6 can be driven by the moving block 7, move along the first direction, and extend to the inside of the first through hole 2 and the inside of the second through hole 3 respectively, so as to realize the positioning of the connecting rod 1.

[0033] Two limiting devices are arranged on the processing platform for limiting the two connecting rods 1; Specifically, Figure 5 As shown, the limiting device includes a supporting block 32, which is fixedly arranged on the top of the processing platform, and the supporting block 32 is provided with a first processing through hole and a second processing through hole corresponding to the first through hole 2 and the second through hole 3 along the first direction; Further, the limiting device also includes two first limiting columns 8 and two second limiting columns 9, which are all fixedly arranged on the top of the supporting block 32 and extend along the first direction, wherein the first limiting column 8 is close to the first end, and the second limiting column 9 is close to the second end, the first limiting column 8 and the second limiting column 9 are both located outside the connecting rod 1, and the two first limiting columns 8 are symmetrically arranged on both sides of the connecting rod 1, and the two second limiting columns 9 are symmetrically arranged on both sides of the connecting rod 1, and the first limiting column 8 and the second limiting column 9 are used to limit the connecting rod 1; Furthermore, the length of the first limiting column 8 is greater than that of the second limiting column 9; Furthermore, the limiting device further includes a clamping assembly, which includes two first clamping members 10 for clamping the first end, the two first clamping members 10 are symmetrically arranged on both sides of the first end, the first clamping member 10 has a first clamping end, and a groove is arranged at the bottom of the first clamping end for accommodating the top of the first limiting column 8; the clamping assembly further includes a second clamping member 11, which has a second clamping end, and the second clamping member 11 is arranged corresponding to the second end; Therefore, when loading, the connecting rod 1 is grabbed by the mechanical arm 30 and placed on the top of the supporting block 32, the connecting rod 1 is limited by the first limiting column 8 and the second limiting column 9, the connecting rod 1 is positioned by the first positioning rod 5 and the second positioning rod 6, and the connecting rod 1 is pressed by the clamping assembly to realize the positioning and placement of the connecting rod 1, and the connecting rod 1 is limited to avoid displacement of the connecting rod 1 during subsequent processing; It should be noted that when the connecting rod 1 is compressed by the compression assembly, the first compression end of the first compression member 10 abuts against the top of the first end, and the top of the first limiting column 8 extends into the groove, thereby limiting the first compression end and preventing the first compression end from moving excessively to cover the first through hole 2 and affect subsequent processing; Furthermore, there is a first preset distance between the bottom of the second clamping end and the top of the second end, and there is also a first preset distance between the bottom of the second end and the top of the support block 32. The first preset distance can be selected as 15 wires. The first preset distance is the maximum value of the difference between the thickness of the first end and the thickness of the second end. As a result, the clamping assembly performs clamping positioning on the first end and auxiliary positioning on the second end, thereby avoiding distortion of the processed product due to inconsistent heights of different surfaces of the blank product.

[0034] Optionally, the first pressing member 10 and the second pressing member 11 may be pressing cylinders, and the first pressing member 10 and the second pressing member 11 can lift, move and rotate the first pressing end and the second pressing end, thereby achieving compression of the connecting rod 1 .

[0035] A first processing device, the first processing device is used to perform boring processing on the first through hole 2 and the second through hole 3; Specifically, Fig. 9 As shown, the first processing device includes a first workstation 12, and a first processing part is arranged on the first workstation 12. The first processing part includes a first processing tool 14 and a second processing tool 15 which are coaxially fixedly connected in a first direction. The first processing tool 14 is fixedly arranged on the top of the second processing tool 15, and the diameter of the first processing tool 14 is larger than that of the second processing tool 15. The first processing tool 14 is used for boring the first through hole 2, and the second processing tool 15 is used for boring the second through hole 3. Furthermore, the first processing device further includes a second workstation 13, on which a first processing portion is disposed, the first workstation 12 is used to process one of the connecting rods 1, and the second workstation 13 is used to process the other connecting rod 1; Furthermore, the first processing part also includes a driving member for driving the first processing tool 14 and the second processing tool 15 to move along the length direction of the connecting rod 1 to adjust the positions of the first processing tool 14 and the second processing tool 15 to achieve processing of the first through hole 2 and the second through hole 3; Thus, after the connecting rod 1 is loaded and positioned, the positioning device is moved along the first direction, the first positioning rod 5 and the second positioning rod 6 are respectively disengaged from the first through hole 2 and the second through hole 3, the processing turntable 4 is rotated, and the processing platform clamped with the connecting rod 1 is rotated to the position corresponding to the first station 12, and the first processing tool 14 and the second processing tool 15 are rotated by the driving member, and the first processing tool 14 and the second processing tool 15 are driven to move downward along the first direction, so that the second processing tool 15 passes through the first through hole 2, so that the second processing tool 15 extends into the first through hole 2, and then the first through hole 2 is bored, and then the first processing tool 14 and the second processing tool 15 are moved upward, and then the first processing part is moved along the length direction of the connecting rod 1, so that the second processing tool 15 moves to the top of the second through hole 3, and then the second processing tool 15 extends into the second through hole 3 along the first direction to bore the second through hole 3; Then, the machining turntable 4 rotates to rotate the machining platform clamped with the connecting rod 1 to the position corresponding to the second station 13, and the first through hole 2 and the second through hole 3 of the other connecting rod 1 are bored through the first machining part of the second station 13; The first machining tool 14 and the second machining tool 15 are coaxially fixedly connected, and the first station 12 and the second station 13 are used to process the two connecting rods 1 respectively, so that the compound error caused by the rotation change of the machining turntable 4 and the positioning and pressing of the two connecting rods 1 can be avoided, so that one station processes only one workpiece, and the accuracy and stability of traditional boring are retained; It should be noted that the first processing part also includes an electric spindle, which drives the first processing tool 14 and the second processing tool 15 to rotate at a high speed, so that the first processing tool 14 and the second processing tool 15 have higher rotation stability.

[0036] A second processing device, the second processing device is used to perform honing on the first through hole 2 and the second through hole 3; Specifically, Figure 6 As shown, the second processing device includes a third station 16, a fourth station 17 and a fifth station 18, and two second processing parts are respectively provided on the third station 16, the fourth station 17 and the fifth station 18 corresponding to two connecting rods 1; Further, the second processing part includes a third processing tool 19 and a fourth processing tool 20, the third processing tool 19 is used for honing the first through hole 2, and the fourth processing tool 20 is used for honing the second through hole 3; Furthermore, there is a second preset distance between the third machining tool 19 and the fourth machining tool 20. Since the length of the connecting rod 1 is fixed, if the wheelbase between the third machining tool 19 and the fourth machining tool 20 is too small, they cannot be installed. Therefore, the second preset distance is greater than the length of the connecting rod 1. Furthermore, a side of the processing platform located at the first end away from the second end is provided with an avoidance groove, which is used for allowing the third processing tool 19 to pass through when the fourth processing tool 20 processes the second through hole 3, so as to avoid collision and interference; the second processing part also includes a driving member, which is used to drive the third processing tool 19 and the fourth processing tool 20 to move along the length direction of the connecting rod 1; Further, the third station 16 is used to perform rough honing on the first through hole 2 and the second through hole 3, the fourth station 17 is used to perform semi-finishing honing on the first through hole 2 and the second through hole 3, and the fifth station 18 is used to perform fine honing on the first through hole 2 and the second through hole 3; The second processing part also includes an electric spindle, which drives the third processing tool 19 and the fourth processing tool 20 to rotate at high speed, so that the first processing tool 14 and the second processing tool 15 have high rotation stability; Thus, after the boring of the first through hole 2 and the second through hole 3 of the two connecting rods 1 is completed, the machining turntable 4 is rotated to drive the machining platform clamped with the connecting rod 1 to pass through the third station 16, the fourth station 17 and the fifth station 18 in sequence, and the rough honing, semi-finishing honing and finishing honing of the first through hole 2 and the second through hole 3 are completed in sequence; During processing, firstly, the third processing tool 19 is rotated so that the third processing tool 19 extends into the first through hole 2, while the fourth processing tool 20 is located outside the processing platform at this time and does not contact the connecting rod 1 to avoid interference. After completing the processing of the first through hole 2, the third processing tool 19 is moved up in the first direction to disengage from the first through hole 2, and then the second processing part is moved along the length direction of the connecting rod 1 through the driving member so that the fourth processing tool 20 is located directly above the second through hole 3, and then the fourth processing tool 20 is moved down along the first direction to the second through hole 3 to process the second through hole 3. At this time, the third processing tool 19 is in the avoidance groove to avoid interference.

[0037] A third processing device, the third processing device is used to remove the flanging burrs produced by processing; Specifically, Figure 7 As shown, the third processing device includes a sixth station 21, and two third processing parts are provided on the sixth station 21 corresponding to the two connecting rods 1. The third processing part includes a first brush 22 and a second brush 23. The first brush 22 is used to remove burrs from the first through hole 2, and the second brush 23 is used to remove burrs from the second through hole 3. Optionally, the first brush 22 and the second brush 23 may be made of nylon; It should be noted that the third processing part also includes an electric spindle, which drives the first brush 22 and the second brush 23 to rotate at a high speed, so that the first brush 22 and the second brush 23 have high rotation stability; the third processing part also includes a driving member for driving the first brush 22 and the second brush 23 to move along the length direction of the connecting rod 1; Therefore, after the honing of the first through hole 2 and the second through hole 3 is completed, the processing turntable 4 is rotated to drive the processing platform clamped with the connecting rod 1 to rotate to the position corresponding to the sixth workstation 21, and the first brush 22 is rotated and extended to the inside of the first through hole 2, so that the burrs of the first through hole 2 are removed. At this time, the second brush 23 is located outside the processing platform and does not contact the connecting rod 1 to avoid interference. Then the first brush 22 is moved up, and the first brush 22 and the second brush 23 are driven to move by the driving member, so that the second brush 23 is directly above the second through hole 3, and then the second brush 23 is rotated and moved down into the second through hole 3 to achieve the burr removal of the second through hole 3.

[0038] A fourth processing device, the fourth processing device is used to perform a finishing process on the first through hole 2 and the second through hole 3; Specifically, Figure 8 and Fig.10As shown, the fourth processing device includes a seventh station 24, and two fourth processing parts are arranged on the seventh station 24 corresponding to the two connecting rods 1. The fourth processing part includes a fifth processing tool 25, and the fifth processing tool 25 is arranged corresponding to the first through hole 2, and is used for finishing the first through hole 2; Furthermore, the fourth processing part also includes an electric spindle, which drives the fifth processing tool 25 to rotate at a high speed, so that the fifth processing tool 25 has a high rotation stability; Furthermore, the fourth processing device further includes an eighth workstation 26, on which two fifth processing parts are provided corresponding to the two connecting rods 1, and the fifth processing part includes a sixth processing tool 27, which is provided corresponding to the second through hole 3 and is used for finishing the second through hole 3; Furthermore, the fifth processing part also includes an electric spindle, which drives the sixth processing tool 27 to rotate at a high speed, so that the sixth processing tool 27 has a high rotation stability; Thus, after the burrs of the first through hole 2 and the second through hole 3 are removed, the machining turntable 4 is rotated to rotate the machining platform clamped with the connecting rod 1 to the position corresponding to the seventh station 24, the fifth machining tool 25 is driven by the electric spindle to rotate at a high speed, and then the fifth machining tool 25 is extended into the first through hole 2 to achieve the finishing machining of the first through hole 2. After machining, the fifth machining tool 25 is reset, and the machining turntable 4 is rotated to rotate the machining platform clamped with the connecting rod 1 to the position corresponding to the eighth station 26, the sixth machining tool 27 is driven by the electric spindle to rotate at a high speed, and then the sixth machining tool 27 is extended into the second through hole 3 to achieve the finishing machining of the second through hole 3; After completing the fine finishing of the first through hole 2 and the second through hole 3, the processing turntable 4 is rotated to rotate the processing platform clamped with the connecting rod 1 to the position corresponding to the ninth workstation 28, and the clamping limit of the connecting rod 1 by the first clamping member 10 and the second clamping member 11 is released, and the connecting rod 1 is unloaded by the robotic arm 30.

[0039] Working principle: When in use, the connecting rod 1 to be processed is loaded through the loading device, and a plurality of connecting rods 1 are divided into two transmission paths through the transmission assembly, and then the two connecting rods 1 are clamped by the mechanical arm 30 to realize the loading of the connecting rod 1, and the first through hole 2 and the second through hole 3 are positioned by the first positioning rod 5 and the second positioning rod 6, and the connecting rod 1 is limited by the first limiting column 8 and the second limiting column 9, and the connecting rod 1 is pressed by the first clamping member 10 and the second clamping member 11, and then the connecting rod 1 is passed through the processing turntable 4 in sequence. The first station 12, the second station 13, the third station 16, the fourth station 17, the fifth station 18, the sixth station 21, the seventh station 24, the eighth station 26 and the ninth station 28 perform boring, rough honing, semi-finishing honing, fine honing, burr removal and finishing on the first through hole 2 and the second through hole 3 in sequence. On the basis of retaining the traditional boring process, the honing process is added to realize the combined boring and honing process, thereby improving the processing accuracy, so that the roundness and cylindricality of the first through hole 2 and the second through hole 3 meet the required requirements.

[0040] The above description is only a preferred embodiment of the present invention and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present invention is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with the technical features with similar functions disclosed in the present invention (but not limited to) to form a technical solution.

Claims

1. A boring and honing machine tool, used for processing a connecting rod (1), wherein the two ends of the connecting rod (1) are respectively a first end and a second end, the first end and the second end respectively have a first through hole (2) and a second through hole (3), characterized in that: The integrated boring and honing machine tool comprises: A processing turntable (4), wherein a plurality of processing platforms are arranged circumferentially on the processing turntable (4), and at least two limiting devices are arranged on the processing platforms for limiting the positions of at least two connecting rods (1), and the limiting devices include a clamping assembly for clamping the first end; a positioning device, the positioning device being movably arranged at the bottom of the processing platform, the positioning device comprising a first positioning rod (5) and a second positioning rod (6), which are used to extend into the first through hole (2) and the second through hole (3) respectively to position the connecting rod (1); A first processing device, the first processing device being used to perform boring processing on the first through hole (2) and the second through hole (3); A second processing device, the second processing device being used for performing honing processing on the first through hole (2) and the second through hole (3); A third processing device, the third processing device is used to remove the flanging burrs generated by processing; A fourth processing device, the fourth processing device is used to perform a finishing process on the first through hole (2) and the second through hole (3).

2. The integrated boring and honing machine tool according to claim 1, characterized in that: The positioning device further comprises a moving block (7), the moving block (7) being connected to an external driving mechanism and being capable of reciprocating along a first direction, the first positioning rod (5) and the second positioning rod (6) being arranged on the top of the moving block (7), the first positioning rod (5) and the second positioning rod (6) both extending along the first direction and being capable of moving along with the moving block (7) along the first direction into the first through hole (2) and the second through hole (3) respectively, so as to limit the first through hole (2) and the second through hole (3).

3. The integrated boring and honing machine tool according to claim 1, characterized in that: The limiting device comprises two first limiting columns (8) and two second limiting columns (9) for limiting the connecting rod (1), wherein the first limiting column (8) is close to the first end; the clamping assembly comprises two first clamping members (10) and one second clamping member (11), wherein the two first clamping members (10) are respectively arranged corresponding to the two first limiting columns (8), and the first clamping member (10) is provided with a groove for accommodating the top of the first limiting column (8), and a first preset distance is provided between the bottom of the second clamping member (11) and the top of the second end.

4. The integrated boring and honing machine tool according to claim 2, characterized in that: The first processing device comprises a first workstation (12) and a second workstation (13), wherein the first processing section is provided on the first workstation (12) and the second workstation (13), wherein the first processing section comprises a first processing tool (14) and a second processing tool (15) which are coaxially fixedly connected in the first direction, wherein the first processing tool (14) is fixedly arranged on the top of the second processing tool (15), and the diameter of the first processing tool (14) is larger than that of the second processing tool (15), wherein the first processing tool (14) is used for boring the first through hole (2), and the second processing tool (15) is used for boring the second through hole (3), wherein the first workstation (12) is used for processing one of the connecting rods (1), and the second workstation (13) is used for processing the other connecting rod (1).

5. The integrated boring and honing machine tool according to claim 1, characterized in that: The second processing device comprises a third workstation (16), a fourth workstation (17) and a fifth workstation (18); the third workstation (16), the fourth workstation (17) and the fifth workstation (18) are respectively provided with at least two second processing parts corresponding to at least two of the connecting rods (1); the second processing parts comprise a third processing tool (19) and a fourth processing tool (20); the third processing tool (19) is used for honing the first through hole (2); the fourth processing tool (20) is used for honing the second through hole (3); the third workstation (16) is used for performing rough honing on the first through hole (2) and the second through hole (3); the fourth workstation (17) is used for performing semi-finishing honing on the first through hole (2) and the second through hole (3); and the fifth workstation (18) is used for performing fine honing on the first through hole (2) and the second through hole (3).

6. The integrated boring and honing machine tool according to claim 1, characterized in that: The third processing device comprises a sixth workstation (21), and at least two third processing parts are arranged on the sixth workstation (21) corresponding to at least two connecting rods (1), and the third processing parts comprise a first brush (22) and a second brush (23), wherein the first brush (22) is used to remove burrs from the first through hole (2), and the second brush (23) is used to remove burrs from the second through hole (3).

7. The integrated boring and honing machine tool according to claim 1, characterized in that: The fourth processing device comprises a seventh workstation (24), and at least two fourth processing parts are arranged on the seventh workstation (24) corresponding to at least two of the connecting rods (1). The fourth processing part comprises a fifth processing tool (25), and the fifth processing tool (25) corresponds to the first through hole (2) and is used for finishing the first through hole (2).

8. The integrated boring and honing machine tool according to claim 1, characterized in that: The fourth processing device further comprises an eighth workstation (26), and at least two fifth processing parts are arranged on the eighth workstation (26) corresponding to at least two of the connecting rods (1), and the fifth processing part comprises a sixth processing tool (27), and the sixth processing tool (27) corresponds to the second through hole (3) and is used for finishing the second through hole (3).

9. The integrated boring and honing machine tool according to claim 1, characterized in that: The present invention also includes a loading device, the loading device includes a ninth workstation (28), the positioning device is arranged corresponding to the ninth workstation (28), the loading device also includes a conveying component for conveying the connecting rod (1) to be processed, the conveying component has an input end, at least two branches (29) are arranged on the conveying component, and the end of the branch (29) away from the input end is an output end. The loading device also includes a robot arm (30) for placing the connecting rod (1) conveyed to at least two output ends on the ninth workstation (28) at the same time.

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