Ratchet wheel machining device

Abstract

The invention relates to the technical field of mechanical part machining, in particular to a ratchet wheel machining device which comprises a front-end lathe and a rear-end lathe arranged on one side of the front-end lathe, a grabbing mechanical arm is arranged between the front-end lathe and the rear-end lathe, and a raw material conveying device is arranged on one side of the grabbing mechanical arm. A raw material conveying device is arranged on one side of the grabbing mechanical arm, a workpiece reversing device is arranged on the other side of the grabbing mechanical arm, and a separation net wrapping the grabbing mechanical arm, the raw material conveying device and the workpiece reversing device is further arranged between the front-end lathe and the rear-end lathe. A large number of workers do not need to get close to a machining machine tool for discharging and taking materials, the machining speed is increased, and meanwhile the safety of ratchet wheel machining is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical parts processing, and in particular to a ratchet processing device. Background Art

[0002] A ratchet is a common mechanical component, its core features a toothed wheel and a mating pawl (or ratchet). The pawl allows the wheel to rotate freely in one direction, but becomes locked in the opposite direction, thus achieving one-way transmission, preventing reverse rotation, or intermittent feeding. A ratchet processing device refers to a set of continuous, sequential processing equipment and processes designed specifically for the high-volume, efficient, and stable production of ratchet parts. Ratchet raw material is round steel. A CNC lathe performs rough and semi-finish turning on the outer diameter, end face, and inner bore of the round steel, removing most of the excess to form the basic shape. The teeth are then machined to create a ratchet with high precision.

[0003] Although the above-mentioned existing technology can solve the corresponding technical problems, it still has certain defects: during the processing of the existing ratchet processing device, the round steel is placed on the material tray through manual loading, and the round steel is placed in the lathe by a robotic arm to process one end of it. Then the robotic arm moves out and places the round steel with one end processed on the material tray. The round steel is manually inverted, and then the robotic arm takes out the round steel with one end processed again and places it in the lathe for secondary processing on the other end. Multiple steps need to be performed manually, the degree of automation is low when in use, and it is relatively close to the robotic arm and the processing lathe, which is dangerous. At the same time, only one round steel can be processed at a time, and the processing speed is slow. Summary of the Invention

[0004] The object of the present invention is to provide a ratchet processing device with high automation and high processing speed in view of the defects and shortcomings of the prior art.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical solution: a ratchet processing device, comprising a front-end lathe and a rear-end lathe arranged on one side of the front-end lathe, a grabbing robot arm is provided between the front-end lathe and the rear-end lathe, a raw material conveying device is provided on one side of the grabbing robot arm, and a workpiece reversing device is provided on the other side of the grabbing robot arm, and an isolation net covering the grabbing robot arm, the raw material conveying device and the workpiece reversing device is also provided between the front-end lathe and the rear-end lathe, the grabbing robot arm includes a longitudinal rotating A rotating arm and a forward and backward movable arm movably engaged with the top end of the longitudinal rotating arm, the top end of the forward and backward movable arm movably engaged with a transverse rotating arm, the bottom surface of the end of the transverse rotating arm movably engaged with a clamping device, the clamping device includes a rotating shaft movably engaged with the bottom surface of the end of the transverse rotating arm and a rotating disk fixedly arranged on the bottom surface of the rotating shaft, a plurality of extension plates are fixedly provided on the edge of the rotating disk, a clamping cylinder is fixedly provided on the bottom surface of the extension plate, a clamping arm is provided at the end of the clamping cylinder, and the extension plate is located at the corresponding position of the clamping arm and is integrally formed with a through hole for the workpiece to pass through.

[0006] A further improvement is that the raw material conveying device includes a tray arranged on one side of the grabbing robot arm and a lifting base fixedly arranged below the tray, and a material receiving and feeding device whose bottom end is movably engaged with the lifting base is fixedly installed on the tray.

[0007] Further improvements are: the material receiving and feeding device includes a transverse track fixedly mounted on the pallet and a transverse plate slidably arranged on the transverse track; the transverse plate is detachably provided with a material tray; the material tray is integrally formed with a number of circular grooves that can accommodate round steel; the bottom surface of the transverse plate is movably engaged with a push-pull cylinder whose bottom end is movably engaged with the lifting base.

[0008] A further improvement is that the bottom surface of the longitudinal rotating arm is also movably engaged with a fixed base.

[0009] A further improvement is that the clamping device further includes a positioning block fixedly arranged on the upper surface of the extension plate at a position corresponding to the through hole.

[0010] Further improvements are: the workpiece reversal device includes a bracket and a lifting plate fixedly arranged on the top of the bracket, the lifting plate is also provided with an extension column, the top of the extension column is provided with a telescopic cylinder that can move up and down, a grabbing claw is provided on one side of the telescopic cylinder, and a placement block is provided on the upper surface of the lifting plate at the corresponding position of the grabbing claw.

[0011] A further improvement is that the placement block includes a fixed block fixedly arranged on the upper surface of the lifting plate at a corresponding position of the grabbing claw and a workpiece placement block detachably arranged on the upper surface of the fixed block, and a workpiece placement groove is integrally formed on the upper surface of the workpiece placement block.

[0012] A further improvement is that an enlarged opening is integrally formed on the top of the workpiece placement groove.

[0013] After adopting the above technical solution, the beneficial effects of the present invention are: The present invention conveys raw materials through a raw material conveying device. The operator only needs to put the round steel required for the production of ratchets into the material tray in batches and place it on the transverse plate. The push-pull cylinder is extended and retracted to make the material tray follow the transverse plate and move transversely along the transverse track, so that batch loading can be performed. At the same time, after the grabbing robot arm processes the round steel into ratchets, it can place the finished product on the material tray and drive the transverse plate to move in the opposite direction through the push-pull cylinder. Therefore, the operator only needs to stand at the position of the raw material conveying device to load materials and collect finished products without having to approach the robot arm and the processing lathe, and the degree of automation is high.

[0014] After the grabbing robot arm of the present invention clamps the round steel and processes the front end thereof, the horizontal rotating arm of the grabbing robot arm can be rotated to make the clamping device face upward, thereby making the workpiece face upward synchronously, and then the longitudinal rotating arm of the grabbing robot arm cooperates with the forward and backward moving arm to move the upward workpiece to the workpiece reversing device, and the grabbing claw of the workpiece reversing device is used to grab one end of the processed workpiece, and the grabbing claw is lowered by cooperating with the telescopic cylinder to insert the unprocessed end of the workpiece into the placement block, and then the processed end of the workpiece can be grabbed by the grabbing robot arm, and the other end that has not been processed is exposed, and sent into the rear-end lathe for processing. There is no need for manual loading and unloading of the workpiece and manual reversal of the workpiece throughout the whole process, and the degree of automation and safety are higher.

[0015] The present invention uses a grabbing robot arm to grab and transport the workpiece. When the grabbing robot arm is working, after the front-end turning of the first workpiece is completed and it is sent to the workpiece reversing device, the grabbing robot arm can be moved synchronously, and the rotating disk can be rotated by the rotating shaft, so that the other extension plate and the clamping cylinder and clamping arm below it can be aligned with the second workpiece on the material disk, thereby clamping it and sending it to the front-end lathe for front-end turning. Then, the rotating shaft is rotated again to make the other extension plate and the clamping cylinder and clamping arm below it clamp the first workpiece after reversing on the workpiece reversing device, and the rotating shaft is rotated again to send the second workpiece after the front-end turning into the workpiece reversing device for The machine then moves the gripping arm and rotates the rotating axis to align the other extension plate and the clamping cylinder and clamping arm below it with the third workpiece on the material tray. The first workpiece is then sent to the rear lathe for rear-end turning. After turning, the first workpiece is placed on the material tray and the third workpiece is sent in for front-end turning. Subsequently, the second workpiece is grabbed from the workpiece reversing device, and the third workpiece is sent to the workpiece reversing device, and the second workpiece is rear-end turned. This cycle repeats, so that the gripping arm can perform loading and front-end turning processes at the same time while the workpiece is being reversed, front-end turned, and rear-end turned. There is no need to wait for each workpiece to be completely processed before grabbing a new workpiece, thereby increasing the processing speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a three-dimensional structural diagram of the processing device of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the processing device of the present invention after removing the isolation net; Figure 3 It is a schematic diagram of the three-dimensional structure of the raw material conveying device of the present invention; Figure 4 It is a schematic structural diagram of the raw material conveying device of the present invention from the front view; Figure 5 It is a schematic diagram of the three-dimensional structure of the material receiving and feeding device of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the grabbing robot arm of the present invention; Figure 7 This is a schematic diagram of the structure of the clamping device of the present invention in a frontal perspective view; Figure 8This is a schematic diagram of the structure of the clamping device of the present invention when viewed from above; Figure 9 It is a schematic diagram of the three-dimensional structure of the workpiece reversing device of the present invention; Figure 10 It is a structural schematic diagram of the front cross section of the placement block of the present invention. DETAILED DESCRIPTION

[0018] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0019] See Figure 1-10As shown, the technical solution adopted in this specific embodiment is: a ratchet processing device, including a front-end lathe 1 and a rear-end lathe 2 arranged on one side of the front-end lathe 1, a grabbing mechanical arm 5 is provided between the front-end lathe 1 and the rear-end lathe 2, the grabbing mechanical arm 5 includes a longitudinal rotating arm 52 arranged between the front-end lathe 1 and the rear-end lathe 2 and a front-back movable arm 53 movably engaged with the top of the longitudinal rotating arm 52, a transverse rotating arm 54 movably engaged with the top of the front-back movable arm 53, a clamping device 55 movably engaged with the bottom surface of the end of the transverse rotating arm 54, the clamping device 55 includes a rotating shaft 551 movably engaged with the bottom surface of the end of the transverse rotating arm 54 and a rotating disk 552 fixedly arranged on the bottom surface of the rotating shaft 551, and a plurality of extending The bottom surface of the extension plate is fixed with a clamping cylinder 553, and the end of the clamping cylinder 553 is provided with a clamping arm 554. The extension plate 556 is located at the corresponding position of the clamping arm 554 and is integrally formed with a through hole for the workpiece to pass through. A raw material conveying device 4 is provided on one side of the grabbing robot arm 5. The raw material conveying device 4 includes a tray 42 arranged on one side of the grabbing robot arm 5 and a lifting base 41 fixedly arranged below the tray 42. A feeding and receiving device 43 is fixedly installed on the tray 42, and the bottom end of the feeding and receiving device 43 is movably engaged with the lifting base 41. The feeding and receiving device 43 includes a transverse rail 432 fixedly installed on the tray 42 and a transverse disc 433 slidably arranged on the transverse rail 432. A material tray 434 is detachably provided on the transverse disc 433, and a material tray 434 is integrally formed with Several circular grooves that can accommodate round steel, the bottom surface of the transverse plate 433 is movably engaged with a push-pull cylinder 431 whose bottom end is movably engaged with the lifting base 41, and a workpiece reversing device 6 is provided on the other side of the grabbing robot arm 5. The workpiece reversing device 6 includes a bracket 61 and a lifting plate 62 fixedly arranged on the top of the bracket 61, and an extension column 63 is also provided on the lifting plate 62. A telescopic cylinder 64 that can move up and down is provided on the top of the extension column 63. A grab claw 65 is provided on one side of the telescopic cylinder 64. A placement block 66 is provided on the upper surface of the lifting plate 62 at a corresponding position of the grab claw 65. The placement block 66 includes a fixed block 661 fixedly arranged on the upper surface of the lifting plate 62 at a corresponding position of the grab claw 65 and a workpiece placement block 662 that is detachably arranged on the upper surface of the fixed block 661. The upper surface of the workpiece placement block 662 is integrally formed with a workpiece placement groove 663. When in use, first start the push-pull cylinder 431 of the feeding and receiving device 43 of the raw material conveying device 4 to extend it, and push the transverse moving plate 433 along the transverse moving track 432 to make the transverse moving plate 433 and the material tray 434 close to the user. Then, remove the material tray 434 from the transverse moving plate 433, and then load the round steel into the circular groove on the material tray 434. After the material tray 434 is filled with round steel, the material tray 434 can be buckled and loaded on the transverse moving plate 433. At this time, feeding can be carried out, and the transverse moving plate 433 is made to move in the opposite direction along the transverse moving track 432 by contracting the push-pull cylinder 431, thereby sending the material tray 434 to the side close to the grabbing robot arm.After the loading is completed, the round steel workpiece is grabbed by the grabbing robot arm 5, and the longitudinal rotating arm 52 of the grabbing robot arm 5 rotates, driving the front and rear moving arms 53 to rotate longitudinally, so that the front and rear moving arms 53 point to the material tray 434, and the front and rear moving arms 53 drive the transverse rotating arms 54 and the clamping device 55 to move transversely, so that the clamping arm 554 under one of the extension plates 556 of the clamping device 55 is aligned with the round steel, and the clamping cylinder 553 is started to retract the clamping arm 554, so that the round steel can be clamped and fixed. After clamping and fixing, The round steel is fed into the front lathe 1 by the longitudinal rotating arm 52 in cooperation with the front and rear moving arm 53, and the transverse rotating arm 54 is rotated 90 degrees, so that the round steel is transversely entered into the front lathe 1 and the front end of the round steel is turned and formed. After turning and forming, the workpiece is moved to the position of the workpiece reversing device 6 by the longitudinal rotating arm 52 in cooperation with the front and rear moving arm 53, and the transverse rotating arm 54 is rotated to make the clamping device 55 face upward, thereby making the workpiece face upward synchronously, and then the upward workpiece is moved by the longitudinal rotating arm 52 of the grabbing robot arm 5 in cooperation with the front and rear moving arm 53. The workpiece moves to the position of the grabbing claw 65 of the workpiece reversing device 6, and the workpiece reversing device 6 grabs the processed end of the workpiece through the grabbing claw 65. After grabbing, the telescopic cylinder 64 lowers the grabbing claw 65, and the unprocessed end of the workpiece is inserted into the workpiece placement groove 663 of the placement block 66, and the processed end of the workpiece is facing upward. Then, the processed end of the workpiece can be grabbed by the grabbing robot arm 5, and the other end that has not been processed is exposed, and it is sent to the rear lathe 2 for rear-end processing. There is no need for manual loading and unloading of workpieces and manual workpiece placement in the whole process. Reversing the workpiece has a higher degree of automation and higher safety. After the workpiece is processed, it is moved to the material tray 434 of the feeding and receiving device 43 of the raw material conveying device 4 by the grabbing robot arm 5. After the material tray 434 is filled with finished workpieces, it is moved along the transverse track 432 by the push-pull cylinder 431 through the transverse plate 433 to a position close to the operator. At this time, the operator only needs to remove the material tray 434 for collection. The operator does not need to be close to the robot arm and the processing lathe. The degree of automation is higher and the feeding and receiving of materials is safer. At the same time, when the grabbing robot arm 5 is working, after the first workpiece is turned by the front-end lathe 1 and is sent into the workpiece reversing device 6, the grabbing robot arm 5 can be moved synchronously, and the rotating shaft 551 of the clamping device 55 can be used to rotate the rotating disk 552, so that the other extension plate 556 and the clamping cylinder 553 and the clamping arm 554 below it are aligned with the second workpiece on the material tray 434, thereby clamping it and sending it to the front-end lathe 1 for front-end turning, and then the rotating shaft 551 is rotated again to make the other extension plate 556 and the clamping cylinder 553 and the clamping arm 554 below it to clamp the first workpiece after reversing on the workpiece reversing device 6, and at the same time, the rotating shaft 551 is rotated again to send the second workpiece after front-end turning into the workpiece reversing device 6 for reversal, and the grabbing robot arm 5 is moved and the rotating shaft 551 is rotated to make the other extension plate 556 and the clamping cylinder 553 and the clamping arm 554 below it align with the second workpiece on the material tray 434 The clamping cylinder 553 and the clamping arm 554 are used to align the third workpiece on the material tray 434, and then the first workpiece is sent to the rear lathe 2 for rear-end turning. After turning, the first workpiece is placed on the material tray 434 for recovery, and the third workpiece is sent to the front-end lathe 1 for front-end turning. Then, the rotating shaft 551 is rotated to make another extension plate 556 and the clamping cylinder 553 and the clamping arm 554 below it align with the second workpiece, grab the second workpiece from the workpiece reversing device 6, and rotate the rotating shaft 551 to send the third workpiece into the workpiece reversing device 6. Then, the second workpiece is sent to the rear-end lathe 2 for rear-end turning by moving the grabbing robot arm 5. This cycle is repeated so that the grabbing robot arm 5 can perform loading and front-end turning processes at the same time during the process of reversing, front-end turning, and rear-end turning of the workpiece. There is no need to wait for each workpiece to be completely processed before grabbing a new workpiece, thereby improving the processing speed.

[0020] The bottom surface of the longitudinal rotating arm 52 is also movably engaged with a fixed base 51, which is conducive to making the grabbing robot arm 5 easier to fix and more stable, preventing it from shaking left and right during operation and other unstable phenomena, thereby ensuring processing accuracy; The clamping device 55 further includes a positioning block 555 fixedly mounted on the upper surface of the extension plate 556 at a position corresponding to the perforation. This facilitates the top end of the workpiece to be inserted into the positioning block 555 when the clamping device 55 clamps the workpiece, thereby keeping the workpiece vertical under the action of the positioning block 555, thereby preventing the workpiece from tilting and affecting the processing effect. The top of the workpiece placement slot 663 is integrally formed with an enlarged opening 664, which is conducive to fitting the shape of the processed ratchet, making it easier to position and place the workpiece into the workpiece placement slot 663; An isolation net 3 is also provided between the front lathe 1 and the rear lathe 2, which covers the grabbing robot arm 5, the raw material conveying device 4 and the workpiece reversing device 6. It is beneficial to isolate the feeding and receiving personnel through the isolation net 3, thereby preventing the debris generated during cutting and other work from splashing, making the equipment safer to use.

[0021] The working principle of the present invention is as follows: when in use, first start the push-pull cylinder 431 of the feeding and receiving device 43 of the raw material conveying device 4 to extend it, and push the transverse moving plate 433 along the transverse moving track 432, so that the transverse moving plate 433 and the material plate 434 are close to the user, and then the material plate 434 is removed from the transverse moving plate 433, and then the round steel is loaded into the circular groove on the material plate 434. After the material plate 434 is filled with round steel, the material plate 434 can be buckled and loaded on the transverse moving plate 433, and then the material can be fed. By contracting the push-pull cylinder 431, the transverse moving plate 433 is made to move in the opposite direction along the transverse moving track 432, thereby sending the material plate 434 to the side close to the grabbing robot arm to complete the loading, and then, The round steel workpiece is grabbed by the grabbing robot arm 5, and the longitudinal rotating arm 52 of the grabbing robot arm 5 rotates, driving the front and rear moving arms 53 to rotate longitudinally, so that the front and rear moving arms 53 point to the material tray 434, and the front and rear moving arms 53 drive the transverse rotating arm 54 and the clamping device 55 to move transversely, so that the clamping arm 554 under one of the extension plates 556 of the clamping device 55 is aligned with the round steel, and the clamping cylinder 553 is started to shrink the clamping arm 554. At this time, the round steel can be clamped and fixed. After clamping and fixing, the longitudinal rotating arm 52 cooperates with the front and rear moving arms 53 to send the round steel into the front end lathe 1, and the transverse rotating arm 54 is rotated 90°, so that the round steel enters the front end lathe 1 transversely and is aligned with the round steel. The front end is turned and formed. After turning and forming, the workpiece is moved to the position of the workpiece reversing device 6 by the longitudinal rotating arm 52 in cooperation with the front and rear moving arm 53, and the horizontal rotating arm 54 is rotated to make the clamping device 55 face upward, thereby making the workpiece face upward synchronously, and then the longitudinal rotating arm 52 of the grasping robot arm 5 cooperates with the front and rear moving arm 53 to move the upward workpiece to the grasping claw 65 position of the workpiece reversing device 6, and the grasping claw 65 of the workpiece reversing device 6 is used to grasp the processed end of the workpiece. After grasping, the grasping claw 65 is lowered in cooperation with the telescopic cylinder 64 to insert the unprocessed end of the workpiece into the workpiece placement groove 663 of the placement block 66, and make the processed end of the workpiece face upward, and then it can be grasped. The robot arm 5 grabs the processed end of the workpiece and exposes the other end that has not been processed, and sends it to the rear lathe 2 for rear-end processing. There is no need for manual loading and unloading of the workpiece and manual reversal of the workpiece throughout the process, which has a higher degree of automation and higher safety. After the workpiece is processed, it is moved to the material tray 434 of the feeding and receiving device 43 of the raw material conveying device 4 by the grabbing robot arm 5. After the material tray 434 is filled with finished workpieces, it is moved along the transverse track 432 by the push-pull cylinder 431 through the transverse tray 433 to a position close to the operator. At this time, the operator only needs to remove the material tray 434 for collection. The operator does not need to be close to the robot arm and the processing lathe. The degree of automation is higher and the feeding and receiving of materials is safer. At the same time, when the grabbing robot arm 5 is working, after the first workpiece is turned by the front-end lathe 1 and is sent into the workpiece reversing device 6, the grabbing robot arm 5 can be moved synchronously, and the rotating shaft 551 of the clamping device 55 can be used to rotate the rotating disk 552, so that the other extension plate 556 and the clamping cylinder 553 and the clamping arm 554 below it are aligned with the second workpiece on the material tray 434, thereby clamping it and sending it to the front-end lathe 1 for front-end turning, and then the rotating shaft 551 is rotated again to make the other extension plate 556 and the clamping cylinder 553 and the clamping arm 554 below it to clamp the first workpiece after reversing on the workpiece reversing device 6, and at the same time, the rotating shaft 551 is rotated again to send the second workpiece after front-end turning into the workpiece reversing device 6 for reversal, and the grabbing robot arm 5 is moved and the rotating shaft 551 is rotated to make the other extension plate 556 and the clamping cylinder 553 and the clamping arm 554 below it align with the second workpiece on the material tray 434 The clamping cylinder 553 and the clamping arm 554 are used to align the third workpiece on the material tray 434, and then the first workpiece is sent to the rear lathe 2 for rear-end turning. After turning, the first workpiece is placed on the material tray 434 for recovery, and the third workpiece is sent to the front-end lathe 1 for front-end turning. Then, the rotating shaft 551 is rotated to make another extension plate 556 and the clamping cylinder 553 and the clamping arm 554 below it align with the second workpiece, grab the second workpiece from the workpiece reversing device 6, and rotate the rotating shaft 551 to send the third workpiece into the workpiece reversing device 6. Then, the second workpiece is sent to the rear-end lathe 2 for rear-end turning by moving the grabbing robot arm 5. This cycle is repeated so that the grabbing robot arm 5 can perform loading and front-end turning processes at the same time during the process of reversing, front-end turning, and rear-end turning of the workpiece. There is no need to wait for each workpiece to be completely processed before grabbing a new workpiece, thereby improving the processing speed.

[0022] The present invention protects the product's structure; the component models are not the subject of this invention's protection and are generally known technology. Any commercially available component that can achieve the aforementioned functions of this invention can be used as an alternative. Therefore, component models and other parameters are not described in detail in this invention. The present invention's contribution lies in the scientific combination of these components.

[0023] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention as claimed. The scope of protection claimed is defined by the appended claims and their equivalents. Any details not described in detail herein are well known to those skilled in the art.

Claims

1. A ratchet processing device, comprising a front lathe (1) and a rear lathe (2) arranged on one side of the front lathe (1), characterized in that: A grabbing robot arm (5) is provided between the front lathe (1) and the rear lathe (2), a material conveying device (4) is provided on one side of the grabbing robot arm (5), and a workpiece reversing device (6) is provided on the other side of the grabbing robot arm (5). An isolation net (3) is also provided between the front lathe (1) and the rear lathe (2) to cover the grabbing robot arm (5), the material conveying device (4) and the workpiece reversing device (6). The grabbing robot arm (5) includes a longitudinal rotating arm (52) provided between the front lathe (1) and the rear lathe (2) and a front-to-back moving arm (53) movably engaged with the top end of the longitudinal rotating arm (52). The front-to-back moving arm (53) A transverse rotating arm (54) is movably engaged with the top end, and a clamping device (55) is movably engaged with the bottom surface of the end of the transverse rotating arm (54). The clamping device (55) comprises a rotating shaft (551) movably engaged with the bottom surface of the end of the transverse rotating arm (54) and a rotating disk (552) fixedly arranged on the bottom surface of the rotating shaft (551). A plurality of extension plates (556) are fixedly provided on the edge of the rotating disk (552). A clamping cylinder (553) is fixedly provided on the bottom surface of the extension plate. A clamping arm (554) is provided at the end of the clamping cylinder (553). A through hole for a workpiece to pass through is integrally formed on the extension plate (556) at a corresponding position of the clamping arm (554).

2. A ratchet processing device according to claim 1, characterized in that: The raw material conveying device (4) includes a tray (42) arranged on one side of the grabbing robot arm (5) and a lifting base (41) fixedly arranged below the tray (42); a material receiving and feeding device (43) whose bottom end is movably engaged with the lifting base (41) is fixedly mounted on the tray (42).

3. A ratchet processing device according to claim 2, characterized in that: The material receiving and feeding device (43) includes a transverse track (432) fixedly mounted on the tray (42) and a transverse plate (433) slidably arranged on the transverse track (432), the transverse plate (433) is detachably provided with a material plate (434), the material plate (434) is integrally formed with a plurality of circular grooves capable of accommodating round steel, and the bottom surface of the transverse plate (433) is movably engaged with a push-pull cylinder (431) whose bottom end is movably engaged with the lifting base (41).

4. The ratchet processing device according to claim 1, characterized in that: The bottom surface of the longitudinal rotating arm (52) is also movably engaged with a fixed base (51).

5. The ratchet processing device according to claim 1, characterized in that: The clamping device (55) further comprises a positioning block (555) fixedly arranged on the upper surface of the extension plate (556) at a position corresponding to the perforation.

6. The ratchet processing device according to claim 1, characterized in that: The workpiece reversing device (6) includes a bracket (61) and a lifting plate (62) fixedly arranged on the top of the bracket (61), an extension column (63) is further provided on the lifting plate (62), a telescopic cylinder (64) that can move up and down is provided on the top of the extension column (63), a grabbing claw (65) is provided on one side of the telescopic cylinder (64), and a placement block (66) is provided on the upper surface of the lifting plate (62) at a position corresponding to the grabbing claw (65).

7. The ratchet processing device according to claim 6, characterized in that: The placement block (66) comprises a fixed block (661) fixedly arranged on the upper surface of the lifting plate (62) at a position corresponding to the grab claw (65) and a workpiece placement block (662) detachably arranged on the upper surface of the fixed block (661), wherein the upper surface of the workpiece placement block (662) is integrally formed with a workpiece placement groove (663).

8. The ratchet processing device according to claim 7, characterized in that: The top of the workpiece placement groove (663) is integrally formed with an enlarged opening (664).

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