Sliding bearing inner and outer wall cutting equipment

Abstract

The invention relates to the technical field of sliding bearing machining, and discloses sliding bearing inner and outer wall cutting equipment which comprises a base, a clamping assembly and a cutting assembly are arranged on the base, and feeding of the cutting assembly is controlled through a motor; the cutting assembly comprises a cutting seat, a switching motor and a cutting disc, the switching motor and the cutting disc are fixed to the cutting seat, and a cutter seat is movably connected into the cutting disc. The cutter seat can be controlled to slide integrally through the switching motor, only one cutter is used for cutting, and after a period of time, the cutter seat can be driven to rotate; the switching motor can adjust the cutter base to slide towards the other side, at the moment, the other cutter can abut against the bearing to replace the previous cutter for cutting, so that the cutting cutters are automatically and frequently switched, certain cooling time is provided for the cutters and a workpiece, and the situation that the surface temperature of the workpiece is too high, so that the surface is burnt, and the surface hardness and abrasion resistance are reduced can be effectively avoided. And due to the switching of the cutters, the abrasion consumption of the cutters can be greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of sliding bearing processing, and specifically relates to a cutting device for the inner and outer walls of a sliding bearing. Background Technique

[0002] A sliding bearing is a bearing that generates sliding friction between the journal and the working surface of the bearing, usually composed of a bearing housing, a bearing bush or a bearing sleeve, etc., and has the advantages of simple structure, reliable operation, strong load-bearing capacity, good vibration resistance, etc., and is widely used in various mechanical equipment.

[0003] In the processing process of a sliding bearing, it is necessary to cut its inner and outer walls. Usually, a single tool is used in the cutting process, and the single tool cuts the inner and outer walls of the bearing separately during the cutting process and cannot be carried out simultaneously, which greatly increases the processing time of the bearing. Moreover, when the single tool cuts for a long time, there is intense friction between the tool and the workpiece, generating a large amount of heat. If the coolant supply is insufficient, these heats may cause the surface temperature of the workpiece to be too high, resulting in surface burns, reducing surface hardness and wear resistance, and also causing a large amount of wear and consumption of the tool. Summary of the Invention

[0004] To solve the above problems existing in the prior art, the present invention provides a cutting device for the inner and outer walls of a sliding bearing, which has the advantage of higher installation stability.

[0005] To achieve the above purpose of higher installation stability, the present invention provides the following technical solutions: including a base, a clamping component and a cutting component are arranged on the base, and the cutting component is controlled to feed by a motor; The cutting component includes a cutting seat, a switching motor and a cutting disc. The switching motor and the cutting disc are fixed on the cutting seat. A cutter seat is movably connected inside the cutting disc. The switching motor controls the sliding of the cutter seat. Two symmetrically arranged tool members are arranged inside the cutter seat, and the tool members slide towards each other inside the cutter seat.

[0006] Preferably, the tool member includes a cutting amount slider and an inner and outer adjustment block. The cutting amount slider slides inside the cutter seat. A nut block is fixed on one side of the cutting amount slider. An inner and outer adjustment groove is opened on the other side of the cutting amount slider. A rotation hole is also provided at the bottom of the inner and outer adjustment groove. The inner and outer adjustment block is located inside the inner and outer adjustment groove.

[0007] Preferably, a rotating shaft is fixed on one side end face of the inner and outer adjustment block. The rotating shaft is located inside the rotation hole. A spring is rotatably connected inside the rotating shaft, and the other end of the spring is fixed at the bottom of the rotation hole.

[0008] Preferably, a tool is slidably arranged in the inner and outer adjustment block, and a tool adjustment screw rod is rotatably installed in the inner and outer adjustment block. The tool adjustment screw rod is in threaded connection with the tool.

[0009] Preferably, the cutting edge of the tool is located at the middle of the end of the tool.

[0010] Preferably, a worm, a worm gear and a cutting amount screw rod are rotatably connected inside the cutter seat. There are two cutter seats, which are fixed on both sides of the cutting amount screw rod. The cutting amount screw rod is in threaded connection with the nut block, and the worm is matched with the worm gear.

[0011] Preferably, one side of the worm extends to the outside, and a handle is arranged on the outside part.

[0012] Preferably, a switching cavity is opened inside the cutting disc. A switching screw rod is installed on the switching motor. The switching screw rod penetrates through the cutting disc and the cutter seat, and the switching screw rod is in threaded connection with the cutter seat. The length of the switching cavity is greater than the length of the cutter seat. The cutting disc and the clamping assembly are coaxial.

[0013] Preferably, the clamping assembly includes a clamping seat. A three-jaw chuck is rotatably installed on the clamping seat. At least three clamping jaws are arranged inside the three-jaw chuck, and sliding bearings are installed at the three clamping jaws.

[0014] Preferably, a chute is opened at the bottom of the base. A slider is fixed at the bottom of the cutting seat. The slider slides in the chute. A feed motor is installed on one side of the base. A feed screw rod is arranged on the feed motor. The feed screw rod penetrates through the slider and is in threaded connection with it.

[0015] Compared with the prior art, the present invention provides a cutting device for the inner and outer walls of a sliding bearing, which has the following beneficial effects: 1. For this cutting device for the inner and outer walls of the sliding bearing, the overall sliding of the cutter seat can be controlled by the switching motor. Only one tool is used for cutting. After a period of time, the switching motor will adjust the cutter seat to slide to the other side. At this time, the other tool can abut against the bearing to replace the previous tool for cutting, so as to automatically and frequently switch the cutting tools, giving the tool and the workpiece a certain cooling time, which can effectively avoid the surface temperature of the workpiece being too high, resulting in surface burns, reducing the surface hardness and wear resistance. The switching of the tools can greatly reduce the wear and consumption of the tools.

[0016] 2. For this cutting device for the inner and outer walls of the sliding bearing, the position of the inner and outer adjustment block can be adjusted to adapt to the separate cutting and simultaneous cutting of the inner and outer sides of the bearing. On the one hand, there is no need to switch different tool tables for inner and outer side cutting. On the other hand, simultaneous cutting will greatly shorten the processing time of the sliding bearing and improve the efficiency. Brief Description of the Drawings

[0017] Figure 1 is a schematic diagram of the main three-dimensional structure of the present invention; Figure 2 is a schematic diagram of the cutting component structure of the present invention; Figure 3 is a schematic diagram of the cutter holder structure of the present invention; Figure 4 is a schematic diagram of the half-section structure of the cutter holder of the present invention; Figure 5 is a schematic diagram of the internal structure of the cutter holder of the present invention; Figure 6 is a schematic diagram of the internal and external adjustment block structure of the present invention.

[0018] In the figure: 10, base; 20, clamping seat; 21, three-jaw chuck; 22, sliding bearing; 30, cutting seat; 301, slider; 31, switching motor; 311, switching lead screw; 32, cutting disc; 321, switching cavity; 33, cutter holder; 331, worm; 332, worm gear; 333, cutting amount lead screw; 34, cutting amount slider; 341, nut block; 342, internal and external adjustment groove; 35, internal and external adjustment block; 351, tool adjustment lead screw; 352, rotating shaft; 36, tool; 40, feed motor; 41, feed lead screw. Detailed Description of the Invention

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Such as Figures 1-6As shown in the figure, it includes a base 10. A clamping assembly and a cutting assembly are arranged on the base 10. The clamping assembly includes a clamping seat 20. A three-jaw chuck 21 is rotatably installed on the clamping seat 20. At least three jaws are arranged inside the three-jaw chuck 21. Sliding bearings 22 are installed at the three jaws. Among them, the cutting assembly is controlled for feeding by a motor. The cutting assembly includes a cutting seat 30, a switching motor 31 and a cutting disc 32. The switching motor 31 and the cutting disc 32 are fixed on the cutting seat 30. A chute is opened at the bottom of the base 10. A slider 301 is fixed at the bottom of the cutting seat 30. The slider 301 slides in the chute. A feeding motor 40 is installed on one side of the base 10. A feeding lead screw 41 is arranged on the feeding motor 40. The feeding lead screw 41 penetrates through the slider 301 and is threadedly connected thereto. By driving the feeding lead screw 41 to rotate by the feeding motor 40, the feeding of the cutting seat 30 is controlled. A cutter seat 33 is movably connected inside the cutting disc 32. The switching motor 31 controls the sliding of the cutter seat 33. Two symmetrically arranged tool members are arranged inside the cutter seat 33. The tool members slide towards each other inside the cutter seat 33.

[0021] The cutting tool component includes a cutting amount slider 34 and an inner and outer adjustment block 35. The cutting amount slider 34 slides within the cutting tool base 33. A nut block 341 is fixed to one side of the cutting amount slider 34. An inner and outer adjustment groove 342 is formed on the other side of the cutting amount slider 34. A rotation hole is also provided at the bottom of the inner and outer adjustment groove 342. The inner and outer adjustment block 35 is located within the inner and outer adjustment groove 342. A rotation shaft 352 is fixed to one end face of the inner and outer adjustment block 35. The rotation shaft 352 is located within the rotation hole. A spring is rotatably connected within the rotation shaft 352, and the other end of the spring is fixed to the bottom of the rotation hole. A cutting tool 36 is slidably disposed within the inner and outer adjustment block 35. By pulling the inner and outer adjustment block 35 outwards to stretch the spring, the inner and outer adjustment block 35 is disengaged from the cutting amount slider 34. Then, by rotating the inner and outer adjustment block 35 by 180 degrees, the cutting tool can be positioned outside the cutting amount slider 34. A cutting tool adjustment screw rod 351 is also rotatably installed within the inner and outer adjustment block 35. The cutting tool adjustment screw rod 351 is threadedly connected to the cutting tool 36. By rotating the cutting tool adjustment screw rod 351, the position of the cutting tool 36 can be adjusted so that the positions of the cutting tools 36 on both sides are the same, that is, the distances of the cutting tools 36 from the rotation shaft 352 are equal, and the cutting edge of the cutting tool 36 is located at the middle of the end of the device. After the inner and outer adjustment block 35 rotates, the cutting edge of the cutting tool 36 can still cut the outer side of the bearing. By pulling the inner and outer adjustment block 35, the inner and outer adjustment block 35 can be rotated. If the two cutting tools 36 are rotated simultaneously and moved to the outer side of the bearing, the outer side of the bearing can be cut by the cutting tools 36 at this time. If only one of the cutting tools 36 is rotated, and then the cutting tool base 33 is controlled to move as a whole by switching the motor 31, the inner and outer sides of the bearing can be cut simultaneously by the two cutting tools 36 at this time. If neither of the two cutting tools 36 rotates and they are located inside the cutting amount slider 34, the inner side of the bearing can be cut at this time. Therefore, by adjusting the position of the inner and outer adjustment block 35, it can be adapted to the separate cutting and simultaneous cutting of the inner and outer sides of the bearing. On the one hand, there is no need to switch different tool tables for inner and outer side cutting. On the other hand, simultaneous cutting will greatly shorten the processing time of the sliding bearing and improve the efficiency.

[0022] A worm 331, a worm gear 332 and a cutting amount screw rod 333 are rotatably connected inside the cutting tool base 33. There are two cutting tool bases 33, which are fixed on both sides of the cutting amount screw rod 333. The cutting amount screw rod 333 is threadedly connected to the nut block 341. When the cutting amount screw rod 333 rotates, it will drive the nut block 341 to move towards both sides simultaneously in opposite directions. The worm 331 cooperates with the worm gear 332. One side of the worm 331 extends to the outside, and a handle is provided on its outside part. By the worm 331, the cutting amount sliders 34 on both sides can be driven to move symmetrically simultaneously, so as to adjust the cutting amount of the cutting tool.

[0023] A switching cavity 321 is provided inside the cutting disc 32. A switching lead screw 311 is installed on the switching motor 31. The switching lead screw 311 penetrates through the cutting disc 32 and the cutter holder 33, and the switching lead screw 311 is threadedly connected to the cutter holder 33. The length of the switching cavity 321 is greater than the length of the cutter holder 33. The cutting disc 32 and the clamping assembly are coaxial. The overall sliding of the cutter holder 33 can be controlled by the switching motor 31. When the cutter holder 33 slides to one end of the switching cavity 321 and the cutting tool 36 performs single-sided cutting, only one cutting tool is used for cutting. After a period of time, the switching motor 31 will adjust the cutter holder 33 to slide to the other side. At this time, the other cutting tool can be abutted against the bearing to replace the previous cutting tool for cutting, so as to automatically and frequently switch the cutting tool, giving the cutting tool and the workpiece a certain cooling time, which can effectively avoid the surface temperature of the workpiece being too high, resulting in surface burns, reducing the surface hardness and wear resistance. The switching of the cutting tool can greatly reduce the wear and tear of the cutting tool.

[0024] Working principle: During use, when both cutting tools 36 on both sides are inside, start the switching motor 31 to drive the cutter holder 33 to move to one end of the switching cavity 321 through the switching lead screw 311. Then rotate the worm 331 to drive the worm gear 332 to rotate. The rotation of the worm gear 332 can drive the nut block 341 to slide through the cutting amount lead screw 333, so that the cutting amount sliders 34 on both sides slide to both sides at the same time. At this time, one of the cutting tools 36 will gradually abut against the workpiece. Then start the clamping seat 20 to drive the workpiece to rotate, and the inner side of the workpiece can be cut. After a period of time, the switching motor 31 will adjust the cutter holder 33 to slide to the other side. At this time, it drives the other cutting tool to abut against the workpiece to replace the previous cutting tool for cutting. During the process of switching the cutting tool, the coolant is always sprayed on the cutting tool and the workpiece for cooling and lubrication, reducing the wear of the workpiece and the cutting tool.

[0025] When one of the cutting tools 36 is on the inner side and the other cutting tool 36 is on the outer side, the cutting tool adjusting lead screw 351 can be adjusted to make the cutting tools 36 on both sides respectively abut against the inner and outer sides of the workpiece. Then, by controlling the rotation of the switching motor 31, the two cutting tools 36 can be moved to one side at the same time to control the cutting amount of the workpiece.

[0026] When the cutting tools 36 on both sides are adjusted to the outer side, and the rotation of the switching lead screw 311 drives the cutting amount slider 34 to move to the outermost side, and then when the cutting tool adjustment lead screw 351 is adjusted, the cutting tools 36 are in the same position. Then, the switching motor 31 is started to drive the cutter holder 33 to move to one end of one side of the switching cavity 321. Then, the switching lead screw 311 is rotated in the reverse direction so that one of the cutting tools 36 abuts against the outer side of the workpiece. Then, the switching lead screw 311 is continuously rotated to feed the cutting tool 36 inward to adjust the outer cutting amount of the workpiece. After a period of time, the switching motor 31 will adjust the cutter holder 33 to slide to the other side. At this time, the other cutting tool is driven to abut against the workpiece to replace the previous cutting tool for cutting.

[0027] In summary, for this sliding bearing inner and outer wall cutting equipment, the switching motor 31 can control the overall sliding of the cutter holder 33. Only one cutting tool is used for cutting. After a period of time, the switching motor 31 will adjust the cutter holder 33 to slide to the other side. At this time, the other cutting tool can abut against the bearing to replace the previous cutting tool for cutting, so as to automatically and frequently switch the cutting tools, giving the cutting tool and the workpiece a certain cooling time, which can effectively prevent the surface temperature of the workpiece from being too high, resulting in surface burns, reducing the surface hardness and wear resistance. The switching of the cutting tools can greatly reduce the wear and consumption of the cutting tools. The position of the inner and outer adjustment blocks 35 can be adjusted to adapt to the separate cutting and simultaneous cutting of the inner and outer sides of the bearing. On the one hand, there is no need to switch different tool tables for inner and outer side cutting. On the other hand, simultaneous cutting will greatly shorten the processing time of the sliding bearing and improve the efficiency.

[0028] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0029] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cutting device for the inner and outer walls of a sliding bearing, comprising a base (10), characterized in that: A clamping component and a cutting component are provided on the base (10), wherein the cutting component is controlled by a motor for feeding; The cutting component includes a cutting seat (30), a switching motor (31) and a cutting disc (32). The switching motor (31) and the cutting disc (32) are fixed on the cutting seat (30). A cutter seat (33) is movably connected inside the cutting disc (32). The switching motor (31) controls the sliding of the cutter seat (33). Two symmetrically arranged tool members are provided inside the cutter seat (33), and the tool members slide towards each other inside the cutter seat (33).

2. The internal and external wall cutting equipment for a sliding bearing according to claim 1, wherein: The tool member includes a cutting amount slider (34) and an inner and outer adjustment block (35). The cutting amount slider (34) slides inside the cutter seat (33). A nut block (341) is fixed on one side of the cutting amount slider (34). An inner and outer adjustment groove (342) is formed on the other side of the cutting amount slider (34). A rotating hole is also provided at the bottom of the inner and outer adjustment groove (342). The inner and outer adjustment block (35) is located inside the inner and outer adjustment groove (342).

3. The internal and external wall cutting equipment for a sliding bearing according to claim 2, characterized in that: A rotating shaft (352) is fixed on one end face of the inner and outer adjustment block (35). The rotating shaft (352) is located inside the rotating hole. A spring is rotatably connected inside the rotating shaft (352), and the other end of the spring is fixed at the bottom of the rotating hole.

4. A cutting device for the inner and outer walls of a sliding bearing according to claim 3, characterized in that: A tool (36) is slidably arranged inside the inner and outer adjustment block (35). A tool adjustment lead screw (351) is also rotatably installed inside the inner and outer adjustment block (35). The tool adjustment lead screw (351) is threadedly connected to the tool (36).

5. The cutting device for the inner and outer walls of a sliding bearing according to claim 4, wherein: The cutting edge of the tool (36) is located at the middle of its end.

6. The internal and external wall cutting equipment for a sliding bearing according to claim 2, characterized in that: A worm (331), a worm wheel (332) and a cutting amount lead screw (333) are rotatably connected inside the cutter seat (33). Among them, two cutter seats (33) are provided and fixed on both sides of the cutting amount lead screw (333). The cutting amount lead screw (333) is threadedly connected to the nut block (341), and the worm (331) is engaged with the worm wheel (332).

7. A cutting device for the inner and outer walls of a sliding bearing according to claim 6, characterized in that: One side of the worm (331) extends to the outside, and a handle is provided on its outside part.

8. A cutting device for the inner and outer walls of a sliding bearing according to claim 1, characterized in that: A switching cavity (321) is formed inside the cutting disc (32). A switching lead screw (311) is installed on the switching motor (31). The switching lead screw (311) penetrates through the cutting disc (32) and the cutter seat (33), and the switching lead screw (311) is threadedly connected to the cutter seat (33). The length of the switching cavity (321) is greater than the length of the cutter seat (33). The cutting disc (32) and the clamping component are coaxial.

9. The cutting device for the inner and outer walls of a sliding bearing according to claim 1, characterized in that: The clamping component includes a clamping seat (20). A three-jaw chuck (21) is rotatably installed on the clamping seat (20). At least three jaws are provided inside the three-jaw chuck (21), and sliding bearings (22) are installed at the three jaws.

10. A cutting device for the inner and outer walls of a sliding bearing according to claim 1, characterized in that: A chute is provided at the bottom of the base (10). A slider (301) is fixed to the bottom of the cutting base (30). The slider (301) slides within the chute. A feed motor (40) is installed on one side of the base (10). A feed lead screw (41) is provided on the feed motor (40). The feed lead screw (41) passes through the slider (301) and is threadedly connected thereto.

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