Double-shaft coexisting high-speed centerless lathe

Abstract

The utility model relates to mechanical processing technical field, concretely is a kind of double axle symbiotic high-speed centerless lathe, including lathe body, the outside of cutting mouth mechanism is provided with positioning mechanism, the surface of conveying roller is provided with backing plate assembly, this positioning mechanism, make the first connecting rod and second connecting rod of cross motion state drive two positioning rollers to move synchronously, then the two positioning rollers of close to moving state are positioned to the machining part of cutting mouth mechanism area, when the process of limiting by cylinder and other devices of existing positioning structure, vibration is directly acted on the stem, the force generated cannot be dispersed, long time work is prone to cause stem deformation, and the structure of the present application can effectively disperse the impact force generated by setting two arc-shaped cross connecting rods, thereby effectively improving the stability of the cutting process of the device on the machining part;The backing plate assembly makes the two backing plates in splicing state achieve the protection effect of conveying roller, effectively reduces the wear degree of conveying roller.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, specifically a dual-axis coexisting high-speed centerless lathe. Background Technology

[0002] The dual-axis co-existing high-speed centerless lathe is an advanced metal processing equipment. Its main features include dual-axis design (equipped with two spindles that can perform machining simultaneously), high-speed machining (using a high-speed spindle design, suitable for mass production of precision parts), centerless machining (no need to use a center hole for positioning, especially suitable for machining long shaft parts), and co-existing machine tool structure (optimized design to reduce vibration and improve machining accuracy).

[0003] Existing dual-axis co-existing high-speed centerless lathes use multiple sets of conveyor rollers to transport the workpiece to the cutting edge mechanism area during operation. The cutting tool in the cutting edge mechanism then processes the workpiece. However, during operation, the operation of various components causes vibration in the machine body, which reduces the stability of the cutting tool when processing the workpiece. Furthermore, after prolonged use, the conveyor rollers will experience varying degrees of wear on their surfaces, making disassembly and replacement inconvenient and costly. Utility Model Content

[0004] The purpose of this invention is to provide a dual-axis coexisting high-speed centerless lathe to solve the problems mentioned in the background art, such as the decreased stability of the cutter during workpiece processing and the inconvenience of disassembling and replacing the conveyor rollers.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a dual-axis coexisting high-speed centerless lathe, comprising a machine tool body, a cutting edge mechanism installed on one side of the machine tool body, multiple sets of transfer rollers arranged on the surface of the machine tool body, a positioning mechanism arranged on the outer side of the cutting edge mechanism, and a pad assembly arranged on the surface of the transfer rollers; The positioning mechanism includes a first connecting rod, a second connecting rod, a rotating seat, a positioning roller, a connecting shaft, a motor, a rotating shaft, a gear, a first arc-shaped rack, and a second arc-shaped rack. The connecting shaft is fixedly connected to one side of the frame of the cutting mechanism. The first connecting rod and the second connecting rod are both rotatably connected to the outer wall of the connecting shaft. One end of the first connecting rod and the second connecting rod is rotatably connected to a rotating seat. The positioning roller is rotatably connected to the inner side of the rotating seat. The motor is fixedly installed on the other side of the frame of the cutting mechanism. The rotating shaft is rotatably connected to the frame of the cutting mechanism. The gear is fixedly assembled to the outer wall of the rotating shaft. The first arc-shaped rack is fixedly assembled to the inner wall of the arc-shaped part of the second connecting rod. The second arc-shaped rack is fixedly assembled to the outer wall of the arc-shaped part of the first connecting rod.

[0006] Preferably, the second connecting rod is arranged to cross the first connecting rod, and the first arc-shaped rack and the second arc-shaped rack are arranged to be staggered.

[0007] Preferably, the output shaft end of the motor is fixedly connected to the rotating shaft, and the output shaft of the motor in the energized state is used to drive the rotating shaft to rotate.

[0008] Preferably, one of the gears meshes with the first arc-shaped rack, and the meshing gear and the first arc-shaped rack are used to drive the second connecting rod to move; Another gear meshes with the second arc-shaped rack, and the meshing state of the other gear and the second arc-shaped rack is used to drive the first connecting rod to move.

[0009] Preferably, the pad assembly includes a pad, a sleeve, a rod, a insertion hole, a bolt, and a screw hole; The pad is detachably connected to the conveyor roller. The sleeve is fixedly connected to the inner wall of one of the pads. The insert rod is fixedly connected to the inner wall of the other pad. The insertion hole is opened in the inner cavity of the conveyor roller. Bolts are opened inside the sleeve, the insert rod and the conveyor roller. The screw hole is threadedly connected to the bolt.

[0010] Preferably, the socket is for inserting the sleeve into itself, and the sleeve is for inserting the rod into itself.

[0011] Preferably, the sleeve and the insert rod in the engaged state are used to splice the two pads, and the screw hole in the tightened state is used to securely install the spliced ​​two pads to the conveyor roller.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the positioning mechanism enables the first and second connecting rods in the cross motion state to drive the two positioning rollers to move synchronously. The two positioning rollers in the close-moving state position the workpiece to be processed in the cutting mechanism area. When the existing positioning structure uses cylinders and other devices to limit the movement, the vibration is directly applied to the rod body, resulting in the force not being dispersed. Long-term operation can easily cause the rod body to deform. However, the structure of this patent can effectively disperse the impact force by setting two arc-shaped cross connecting rods, thereby effectively improving the stability of the cutting process of the workpiece to be processed. This pad assembly allows the sleeve and socket in the engaged state to join the two pads with the insert rod and sleeve. In the tightened state, the screw hole secures the two joined pads to the conveyor roller, thereby protecting the conveyor roller and effectively reducing its wear. Attached Figure Description

[0013] Figure 1This is a schematic diagram of the main structure of the present utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a schematic diagram of the positioning mechanism of this utility model; Figure 4 This is a schematic diagram of the pad assembly structure of this utility model.

[0014] In the diagram: 1. Machine tool body; 2. Cutting edge mechanism; 3. Conveyor roller; 4. Positioning mechanism; 401. First connecting rod; 402. Second connecting rod; 403. Rotating seat; 404. Positioning roller; 405. Connecting shaft; 406. Motor; 407. Rotating shaft; 408. Gear; 409. First arc-shaped rack; 4010. Second arc-shaped rack; 5. Pad assembly; 501. Pad; 502. Sleeve; 503. Insert rod; 504. Insertion hole; 505. Bolt; 506. Screw hole. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-4 This utility model provides a technical solution for a dual-axis coexisting high-speed centerless lathe: a dual-axis coexisting high-speed centerless lathe, including a machine tool body 1, a cutting edge mechanism 2 installed on one side of the machine tool body 1, multiple sets of conveying rollers 3 arranged on the surface of the machine tool body 1, a positioning mechanism 4 arranged on the outside of the cutting edge mechanism 2, and a pad assembly 5 arranged on the surface of the conveying rollers 3. The positioning mechanism 4 includes a first connecting rod 401, a second connecting rod 402, a rotating seat 403, a positioning roller 404, a connecting shaft 405, a motor 406, a rotating shaft 407, a gear 408, a first arc-shaped rack 409, and a second arc-shaped rack 4010. The connecting shaft 405 is fixedly connected to one side of the frame of the cutting mechanism 2. The first connecting rod 401 and the second connecting rod 402 are both rotatably connected to the outer wall of the connecting shaft 405. One end of the first connecting rod 401 and the second connecting rod 402 is rotatably connected to a rotating seat 403. The positioning roller 404 is rotatably connected to the inner side of the rotating seat 403. The motor 406 is fixedly installed on the other side of the frame of the cutting mechanism 2. The rotating shaft 407 is rotatably connected to the frame of the cutting mechanism 2. The gear 408 is fixedly assembled on the outer wall of the rotating shaft 407. The first arc-shaped rack 409 is fixedly assembled on the inner wall of the arc-shaped part of the second connecting rod 402. The second arc-shaped rack 4010 is fixedly assembled on the outer wall of the arc-shaped part of the first connecting rod 401.

[0017] Please refer to this carefully. Figure 2 The workpiece is conveyed to the cutting mechanism 2 area by multiple sets of conveyor rollers 3 in operation. At this time, the motor 406 is powered on and started, so that the output shaft of the motor 406 drives the rotating shaft 407 to rotate. The rotating shaft 407 drives two gears 408 to rotate. Since one gear 408 meshes with the first arc-shaped rack 409, the meshing gear 408 and the first arc-shaped rack 409 drive the second connecting rod 402 to move. At the same time, since the other gear 408 meshes with the second arc-shaped rack 409... When gears 408 and 4010 mesh, the other gear 408 and the second arc-shaped rack 4010 in the meshing state drive the first connecting rod 401 to move. The first connecting rod 401 and the second connecting rod 402 are in a cross motion state. The first connecting rod 401 and the second connecting rod 402 in the cross motion state drive the two rotating seats 403 and the positioning roller 404 to move closer together. The two positioning rollers 404 in the close motion state position the workpiece to be processed in the cutting mechanism 2 area, thereby effectively improving the stability of the cutting process of the workpiece to be processed by the device.

[0018] Please refer to this carefully. Figure 3 The second link 402 is arranged to cross the first link 401, and the first arc-shaped rack 409 and the second arc-shaped rack 4010 are arranged to be staggered.

[0019] In this embodiment: the first link 401 and the second link 402 are in a cross motion state, and the first link 401 and the second link 402 in the cross motion state drive the two rotating seats 403 and the positioning roller 404 to move closer to each other.

[0020] Please refer to this carefully. Figure 3 The output shaft end of motor 406 is fixedly connected to rotating shaft 407, and the output shaft of motor 406 in the energized state is used to drive rotating shaft 407 to rotate.

[0021] In this embodiment: the motor 406 is powered on and started, so that the output shaft of the running motor 406 drives the rotating shaft 407 to rotate, and the rotating shaft 407 drives the two gears 408 to rotate.

[0022] Please refer to this carefully. Figure 3 A gear 408 meshes with a first arc-shaped rack 409, and the meshing gear 408 and the first arc-shaped rack 409 are used to drive the second connecting rod 402 to move. Another gear 408 meshes with the second arc-shaped rack 4010, and the meshing state of the other gear 408 and the second arc-shaped rack 4010 is used to drive the first connecting rod 401 to move.

[0023] In this embodiment: since one gear 408 meshes with the first arc-shaped rack 409, the meshing gear 408 and the first arc-shaped rack 409 drive the second connecting rod 402 to move. At the same time, since another gear 408 meshes with the second arc-shaped rack 4010, the meshing gear 408 and the second arc-shaped rack 4010 drive the first connecting rod 401 to move. Thus, the first connecting rod 401 and the second connecting rod 402 are in a cross motion state.

[0024] Please refer to this carefully. Figure 4 The pad assembly 5 includes a pad 501, a sleeve 502, a plug rod 503, a plug hole 504, a bolt 505, and a screw hole 506; The pad 501 is detachably connected to the conveyor roller 3. The sleeve 502 is fixedly connected to the inner wall of one pad 501. The insert rod 503 is fixedly connected to the inner wall of the other pad 501. The insertion hole 504 is opened in the inner cavity of the conveyor roller 3. Bolts 505 are opened in the sleeve 502, the insert rod 503 and the conveyor roller 3. The screw hole 506 is threadedly connected to the bolt 505.

[0025] In this embodiment: In order to reduce the wear of the conveyor roller 3, a pad 501 needs to be fitted on the outside of the conveyor roller 3. Two pads 501 are fitted on the outside of the conveyor roller 3, and the sleeve 502 is inserted into the inside of the insertion hole 504. The insertion rod 503 is inserted into the inside of the sleeve 502. The sleeve 502 and the insertion hole 504, the insertion rod 503 and the sleeve 502 in the locked state splice the two pads 501. Then the bolt 505 is threadedly connected to the screw hole 506. The screw hole 506 in the tightened state securely installs the spliced ​​two pads 501 to the conveyor roller 3. Thus, the pads 501 are installed on the outside of the conveyor roller 3, which achieves the effect of protecting the conveyor roller 3. Moreover, the above structure makes it easy to disassemble and replace the damaged pads 501.

[0026] Please refer to this carefully. Figure 4The insertion hole 504 is used for inserting the sleeve 502 into its interior, and the sleeve 502 is used for inserting the insertion rod 503 into its interior.

[0027] In this embodiment: two pads 501 are fitted onto the outside of the conveyor roller 3, and the sleeve 502 is inserted into the inside of the insertion hole 504. Then the insertion rod 503 is inserted into the inside of the sleeve 502. The sleeve 502 and the insertion hole 504 in the locked state, together with the insertion rod 503 and the sleeve 502, splice the two pads 501.

[0028] Please refer to this carefully. Figure 4 The sleeve 502 and the insert rod 503 in the engaged state are used to splice the two pads 501, and the screw hole 506 in the tightened state is used to fasten the spliced ​​two pads 501 to the conveyor roller 3.

[0029] In this embodiment: the sleeve 502 and the insertion hole 504 in the engaged state are spliced ​​together with the insertion rod 503 and the sleeve 502 to form two pads 501. Then, the bolt 505 is threadedly connected to the screw hole 506, so that the screw hole 506 in the tightened state securely installs the spliced ​​two pads 501 to the conveyor roller 3, thereby installing the pads 501 on the outside of the conveyor roller 3.

[0030] Working principle: The workpiece to be processed is conveyed to the cutting mechanism 2 area by multiple sets of conveyor rollers 3 in operation. At this time, the motor 406 is powered on and runs, causing the output shaft of the running motor 406 to drive the rotating shaft 407 to rotate. The rotating shaft 407 drives two gears 408 to rotate. Since one gear 408 meshes with the first arc-shaped rack 409, the meshing gear 408 and the first arc-shaped rack 409 drive the second connecting rod 402 to move. At the same time, the other gear 408 meshes with the second arc-shaped rack 409. When the rack 4010 meshes with the other gear 408, the meshing gear 408 and the second arc rack 4010 drive the first connecting rod 401 to move. The first connecting rod 401 and the second connecting rod 402 are in a cross motion state. The first connecting rod 401 and the second connecting rod 402 in the cross motion state drive the two rotating seats 403 and the positioning roller 404 to move closer to each other. The two positioning rollers 404 in the close motion state position the workpiece to be processed in the cutting mechanism 2 area, thereby effectively improving the stability of the cutting process of the workpiece to be processed by the device. To reduce the wear of the conveyor roller 3, a pad 501 needs to be fitted on the outside of the conveyor roller 3. Two pads 501 are fitted on the outside of the conveyor roller 3, and a sleeve 502 is inserted into the inside of the insertion hole 504. The insertion rod 503 is inserted into the inside of the sleeve 502. The sleeve 502 and the insertion hole 504, along with the insertion rod 503 and the sleeve 502, splice the two pads 501 together. Then, the bolt 505 is threaded into the screw hole 506, and the screw hole 506, in a tightened state, secures the spliced ​​two pads 501 to the conveyor roller 3. Thus, the pads 501 are installed on the outside of the conveyor roller 3, achieving a protective effect on the conveyor roller 3. Moreover, the above structure facilitates the disassembly and replacement of damaged pads 501.

[0031] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual-axis coexisting high-speed centerless lathe, comprising a machine tool body (1), a cutting edge mechanism (2) mounted on one side of the machine tool body (1), and multiple sets of transfer rollers (3) disposed on the surface of the machine tool body (1), characterized in that: A positioning mechanism (4) is provided on the outside of the cutting mechanism (2), and a pad assembly (5) is provided on the surface of the conveying roller (3). The positioning mechanism (4) includes a first connecting rod (401), a second connecting rod (402), a rotating seat (403), a positioning roller (404), a connecting shaft (405), a motor (406), a rotating shaft (407), a gear (408), a first arc-shaped rack (409), and a second arc-shaped rack (4010). The connecting shaft (405) is fixedly connected to one side of the frame of the cutting mechanism (2). The first connecting rod (401) and the second connecting rod (402) are rotatably connected to the outer wall of the connecting shaft (405). One end of the first connecting rod (401) and the second connecting rod (402) is rotatably connected to a rotating seat (403). The positioning roller (404) is rotatably connected to the inner side of the rotating seat (403). The motor (406) is fixedly installed on the other side of the frame of the cutting mechanism (2). The rotating shaft (407) is rotatably connected to the frame of the cutting mechanism (2). The gear (408) is fixedly assembled on the outer wall of the rotating shaft (407). The first arc-shaped rack (409) is fixedly assembled on the inner wall of the arc-shaped part of the second connecting rod (402). The second arc-shaped rack (4010) is fixedly assembled on the outer wall of the arc-shaped part of the first connecting rod (401).

2. The dual-axis coexisting high-speed centerless lathe according to claim 1, characterized in that: The second link (402) is arranged to cross the first link (401), and the first arc-shaped rack (409) and the second arc-shaped rack (4010) are arranged to be staggered.

3. The dual-axis coexisting high-speed centerless lathe according to claim 1, characterized in that: The output shaft end of the motor (406) is fixedly connected to the rotating shaft (407), and the output shaft of the motor (406) in the energized state is used to drive the rotating shaft (407) to rotate.

4. A dual-axis coexisting high-speed centerless lathe according to claim 1, characterized in that: One of the gears (408) meshes with the first arc-shaped rack (409), and the meshing state of the gear (408) and the first arc-shaped rack (409) is used to drive the second connecting rod (402) to move; Another gear (408) meshes with the second arc-shaped rack (4010), and the meshing state of the other gear (408) and the second arc-shaped rack (4010) is used to drive the first connecting rod (401) to move.

5. A dual-axis coexisting high-speed centerless lathe according to claim 1, characterized in that: The pad assembly (5) includes a pad (501), a sleeve (502), a plug rod (503), a plug hole (504), a bolt (505), and a screw hole (506); The pad (501) is detachably connected to the conveyor roller (3). The sleeve (502) is fixedly connected to the inner wall of one of the pads (501). The insert rod (503) is fixedly connected to the inner wall of the other pad (501). The insertion hole (504) is opened in the inner cavity of the conveyor roller (3). Bolts (505) are opened inside the sleeve (502), the insert rod (503) and the conveyor roller (3). The screw hole (506) is threadedly connected to the bolt (505).

6. A dual-axis coexisting high-speed centerless lathe according to claim 5, characterized in that: The insertion hole (504) is for inserting the sleeve (502) into its interior, and the sleeve (502) is for inserting the insertion rod (503) into its interior.

7. A dual-axis coexisting high-speed centerless lathe according to claim 5, characterized in that: The sleeve (502) and the insert rod (503) in the engaged state are used to splice the two pads (501), and the screw hole (506) in the tightened state is used to fasten the two pads (501) in the spliced ​​state to the conveyor roller (3).

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