Gearbox shaft rod machining cutting device with fixing structure

Abstract

The invention relates to the technical field of shaft rod cutting, in particular to a gearbox shaft rod machining cutting device with a fixing structure. Comprising a cutting bed; the sliding frame is arranged on the cutting bed, a sliding block is arranged in the sliding frame, and a knife rest is arranged on the sliding block; the power frame is arranged on the sliding frame; the first fixer is arranged on the cutting bed; the second fixator is arranged on the first fixator, the second fixator comprises a measuring push rod, and a positioning block is arranged at the telescopic end of the measuring push rod; and the connector is arranged on the sliding block. Raw materials are fixed through the first fixator and the second fixator, the stability in the cutting process is improved, then the resistance borne by the circular saw blade is detected through the connector, when the circular saw blade is clamped due to the large resistance, power transmission between the circular saw blade and the power frame is cut off, the situation that the power frame is damaged due to the fact that the load borne by the power frame is too large is avoided, and the cutting efficiency is improved. The normal use of the device is influenced.

Description

Technical Field

[0001] The invention relates to the technical field of shaft rod cutting, and in particular to a cutting device for machining a gearbox shaft rod with a fixed structure. Background Art

[0002] The gearbox shaft (hereinafter referred to as the shaft) is an automotive component used to connect and transmit power. At present, the processing process of the shaft is: first, the raw material of the appropriate diameter is cut to the required length, and then turning, milling, drilling, shaving, heat treatment and grinding are carried out in sequence to complete the production. In the production process of the shaft, in most cases, a circular saw machine is used to cut the shaft raw material. When cutting, the circular saw blade is driven by the push rod to move to cut the raw material. As the use time of the circular saw blade increases, the wear degree of the circular saw blade gradually increases, resulting in a gradual decrease in cutting efficiency. However, the existing device cannot detect the wear of the circular saw blade during use. After the circular saw blade is severely worn, it will still be used to cut the raw material, causing the severely worn circular saw blade to continue to cut the raw material. The resistance of the circular saw blade increases, and the circular saw blade cannot effectively cut the raw material. The circular saw blade will be stuck in the raw material, causing the motor load to increase and be damaged, affecting the normal operation of the equipment. Summary of the invention

[0003] The invention provides a cutting device for machining a gearbox shaft with a fixed structure, which is designed to overcome the disadvantage that the motor load is easily increased and damaged after a circular saw blade is stuck in the existing device.

[0004] The technical solution of the present invention is: a cutting device for processing a gearbox shaft with a fixed structure, comprising: a cutting bed; a sliding frame, which is arranged on the cutting bed, the sliding frame is used to drive a circular saw blade to move, a slider is arranged in the sliding frame, and the slider is provided with a tool holder; a power frame, which is arranged on the sliding frame and is used to drive the circular saw blade to rotate; a first fixer, which is arranged on the cutting bed; a second fixer, which is arranged on the first fixer, the second fixer includes a measuring push rod, and a positioning block is arranged at the telescopic end of the measuring push rod, and the first fixer and the second fixer are used together to fix the shaft; a connector, which is arranged on the slider, and the connector is used to cut off the power transmission between the circular saw blade and the power frame when the circular saw blade is stuck.

[0005] Preferably, the connector comprises: a rotating shaft, which is rotatably connected to the sliding frame, the rotating shaft and the power frame are driven by a belt and a pulley, the rotating shaft is splined with a sliding shaft, the rotating shaft is provided with a sliding cavity, the sliding shaft slides in the sliding cavity, the sliding shaft is slidably connected with a rotating sleeve, and the rotating sleeve is rotatably connected to the slider; a detection rod, which is rotatably connected to the rotating sleeve, a spring is provided between the detection rod and the sliding shaft, a limiting column is fixedly connected to the detection rod, the rotating sleeve is provided with a through hole, the detection rod is limitedly matched with the through hole, the slider is rotatably connected with a connecting sleeve, a curved sliding groove is provided in the connecting sleeve, a protrusion is fixedly connected to one end of the detection rod away from the rotating sleeve, the protrusion of the detection rod is pressed and matched with the curved sliding groove of the connecting sleeve, and the connecting sleeve is fixed to the circular saw blade; a limiting plate, which is fixed to the detection rod, the limiting plate is rotatably connected to the slider, a torsion spring is provided between the limiting plate and the slider, and the limiting plate is located between the rotating sleeve and the connecting sleeve.

[0006] Preferably, the length of the limiting column is smaller than the length of the curved slide groove in the connecting sleeve in the horizontal direction.

[0007] Preferably, it also includes: a U-shaped frame, slidably connected to the slider, a spring is arranged between the U-shaped frame and the slider, the slider and the limit plate are limitedly cooperated to limit the unidirectional movement of the limit plate; a measuring component, arranged on the measuring push rod, for adjusting the resistance encountered by the detection rod when it moves.

[0008] Preferably, a slope is provided on a side of the U-shaped frame close to the central axis of the rotating sleeve, and the slope is located on a side away from the rotating shaft.

[0009] Preferably, the measuring assembly includes: a guide plate, which is arranged on the measuring push rod, and the guide plate is slidably connected to the positioning block; a hydraulic pipe, which is slidably connected to the telescopic end of the measuring push rod, and the hydraulic pipe is connected to the sliding cavity of the rotating shaft through a hose; a positioning plate, which is fixed to the hydraulic pipe, and the positioning plate is slidably connected to the guide plate, and the positioning plate is slidably connected to the positioning block.

[0010] Preferably, it also includes: an extrusion plate, which is slidably connected to the sliding shaft, a damping is arranged between the extrusion plate and the sliding shaft, and the extrusion plate is located between the rotating shaft and the rotating sleeve, the extrusion plate is slidably connected to the slider, and the rotating shaft, the rotating sleeve and the U-shaped frame are all extruded and matched with the extrusion plate.

[0011] Preferably, the minimum distance between the U-shaped frame and the rotating shaft in the horizontal direction is smaller than the thickness of the extruded plate, so that the U-shaped frame is always in contact with the circumference of the extruded plate.

[0012] Preferably, it also includes: an L-shaped plate, which is slidably connected to the positioning plate, the positioning plate is provided with a slide groove, the L-shaped plate slides in the slide groove, a tension spring is provided between the L-shaped plate and the positioning plate, the L-shaped plate is squeezed and matched with the positioning block, the guide plate is provided with a plurality of limit grooves, and the L-shaped plate is limitedly matched with the limit grooves of the guide plate.

[0013] Preferably, the thickness of the horizontal part of the L-shaped plate is smaller than the height of the slide groove in the positioning plate, and the difference between the thickness of the horizontal part of the L-shaped plate and the slide groove in the positioning plate is the same as the thickness of the limit groove in the guide plate, so as to make the horizontal part of the L-shaped plate cooperate with the limit groove in the guide plate.

[0014] The present invention has the following advantages: 1. The present invention fixes the raw material by the first fixer and the second fixer to improve the stability during the cutting process, and then detects the resistance of the circular saw blade by the connector. When the circular saw blade encounters greater resistance and becomes stuck, the power transmission between the circular saw blade and the power frame is cut off to prevent the power frame from being damaged due to excessive load, which affects the normal use of the device.

[0015] 2. After the limit column is separated from the through hole of the rotating sleeve, the present invention fixes the limit plate through a U-shaped frame, so that the detection rod cannot move forward, preventing the detection rod from driving the limit column to move into the through hole of the rotating sleeve, and then driving the circular saw blade to rotate again, causing the circular saw blade to continuously collide with the device, thereby aggravating damage to the device.

[0016] 3. When the measuring component of the present invention measures the diameter of the raw material, the resistance of the detection rod when it moves backward is adjusted by adjusting the compression distance of the spring in the rotating sleeve, so that the maximum resistance borne by the circular saw blade when cutting the raw material matches the diameter of the raw material, thereby avoiding the circular saw blade being unable to cut the raw material due to the small resistance encountered by the detection rod when it moves when the circular saw blade cuts the raw material with a larger diameter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the sliding frame, the power frame and the first fixer of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the power frame, the first fixer and the second fixer of the present invention; Figure 4 It is a three-dimensional structural schematic diagram of the sliding frame, the power frame and the connector of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the measuring push rod, guide plate and hydraulic pipe of the present invention; Figure 6It is a three-dimensional structural schematic diagram of the rotating shaft, the rotating sleeve and the detection rod of the present invention; Figure 7 It is a three-dimensional structural schematic diagram of the rotating sleeve, the detection rod and the connecting sleeve of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the limiting plate, the U-shaped frame and the extrusion plate of the present invention; Fig. 9 It is a three-dimensional structural exploded diagram of the detection rod and the connecting sleeve of the present invention; Fig.10 It is a three-dimensional structural schematic diagram of the hydraulic pipe, the positioning plate and the positioning block of the present invention; Fig.11 It is a schematic diagram of the three-dimensional structure of the positioning plate, positioning block and L-shaped plate of the present invention.

[0018] The meanings of the reference numerals in the figure are: 1-cutting bed, 2-sliding frame, 201-sliding block, 3-power frame, 4-first fixture, 41-cutting table, 42-telescopic block, 43-baffle, 5-second fixture, 51-measuring push rod, 52-positioning block, 6-connector, 7-rotating shaft, 8-sliding shaft, 9-rotating sleeve, 10-detection rod, 11-connecting sleeve, 101-limiting column, 12-limiting plate, 13-U-shaped frame, 14-extrusion plate, 16-guide plate, 17-hydraulic pipe, 18-positioning plate, 20-L-shaped plate. DETAILED DESCRIPTION

[0019] First of all, it should be pointed out that in the different described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosure contained in the entire description can be transferred to the same parts with the same reference numerals or the same component names. Selected positional descriptions in the description, such as top, bottom, etc., also refer to the directly described and shown figures and are transferred to the new positions in the case of a change in position.

[0020] A cutting device for machining a gearbox shaft with a fixed structure, such as Figure 1-Figure 5 As shown, it includes: a cutting bed 1; a sliding frame 2, which is arranged on the cutting bed 1, and the sliding frame 2 is used to drive the circular saw blade to move. A slider 201 is arranged in the sliding frame 2, and the slider 201 is provided with a tool holder; a power frame 3, which is arranged on the sliding frame 2, and is used to drive the circular saw blade to rotate; a first fixer 4, which is arranged on the cutting bed 1; a second fixer 5, which is arranged on the first fixer 4, and the second fixer 5 includes a measuring push rod 51, and a positioning block 52 is arranged at the telescopic end of the measuring push rod 51, and the first fixer 4 and the second fixer 5 are used together to fix the shaft rod; a connector 6, which is arranged on the slider 201, and the connector 6 is used to cut off the power transmission between the circular saw blade and the power frame 3 when the circular saw blade is stuck.

[0021] The above scheme aims to solve the problem that after the circular saw blade in the existing device is stuck, the motor load increases and is easily damaged; an isolation shell is provided on the cutting bed 1 to block the flying debris during cutting, and the sliding frame 2 is arranged in the isolation shell of the cutting bed 1. The sliding frame 2 is composed of an electric push rod and a guide rail. The guide rail is used to guide the movement of the slider 201. The electric push rod is used to provide power for the movement of the slider 201, so that the slider 201 drives the circular saw blade close to the raw material. A tool holder is provided on the front side of the slider 201, and a circular saw blade is rotatably connected in the tool holder; the power frame 3 is composed of a motor and a connecting frame; the first fixer 4 is located on the cutting bed 1, and the first fixer 4 has a cutting table 41, a telescopic block 42 and a baffle 43. The cutting table 41 is used to support the cutting table 41 when cutting the raw material. At the bottom of the raw material, the telescopic block 42 is used to extend when fixing the raw material, so that the telescopic block 42 cooperates with the baffle 43 to fix and clamp the raw material; the second fixer 5 is used to drive the positioning block 52 to move downward through the measuring push rod 51 during the process of fixing the raw material, so as to fix the upper side of the raw material; the connector 6 is located in the slider 201, and the connector 6 is located between the circular saw blade and the power frame 3. The connector 6 and the power frame 3 are driven by pulleys and belts. The connector 6 is used to transmit power to the circular saw blade, and when the circular saw blade is stuck, the power transmission between the circular saw blade and the power frame 3 is cut off, so as to avoid that after the circular saw blade is stuck, the power frame 3 continues to drive the circular saw blade to rotate, and the circular saw blade cannot move, resulting in an increase in the load on the motor in the power frame 3 and damage, affecting the subsequent normal use of the device.

[0022] Workflow: After placing the raw material on the cutting bed 1, start the first fixer 4 to fix the raw material so that the raw material cannot move left and right, and at the same time start the second fixer 5, so that the telescopic end of the measuring push rod 51 drives the positioning block 52 to move downward to press the raw material, and complete the fixation in four directions. During this process, the power frame 3 drives the circular saw blade to rotate through the connector 6, and then the sliding frame 2 drives the circular saw blade to approach the raw material through the slider 201 to complete the cutting of the raw material. When the resistance encountered by the circular saw blade is too large, the connector 6 cuts off the power transmission between the circular saw blade and the power frame 3, so that the output shaft of the motor in the power frame 3 idles, thereby reducing the load of the power frame 3, and then the staff controls the sliding frame 2, the telescopic block 42 and the positioning block 52 to reset. After the above three parts are reset, the staff cuts off the power supply and replaces the circular saw blade.

[0023] like Figure 7-Figure 9As shown, the connector 6 includes: a rotating shaft 7, which is rotatably connected to the sliding frame 2, the rotating shaft 7 and the power frame 3 are driven by a belt and a pulley, the rotating shaft 7 is splined with a sliding shaft 8, the rotating shaft 7 is provided with a sliding cavity, the sliding shaft 8 is located in the sliding cavity and slides, the sliding shaft 8 is slidably connected to a rotating sleeve 9, and the rotating sleeve 9 is rotatably connected to the slider 201; a detection rod 10, which is rotatably connected to the rotating sleeve 9, a spring is provided between the detection rod 10 and the sliding shaft 8, a limiting column 101 is fixedly connected to the detection rod 10, and the rotating sleeve 9 is provided with a through Hole, the detection rod 10 is limitedly matched with the through hole, the slider 201 is rotatably connected with a connecting sleeve 11, a curved slide groove is arranged in the connecting sleeve 11, a protrusion is fixedly connected to the end of the detection rod 10 away from the rotating sleeve 9, the protrusion of the detection rod 10 is squeezed and matched with the curved slide groove of the connecting sleeve 11, and the connecting sleeve 11 is fixedly connected to the circular saw blade; a limit plate 12 is fixedly connected to the detection rod 10, the limit plate 12 is rotatably connected with the slider 201, a torsion spring is arranged between the limit plate 12 and the slider 201, and the limit plate 12 is located between the rotating sleeve 9 and the connecting sleeve 11.

[0024] like Figure 8 and Fig. 9 As shown, the length of the limiting column 101 is smaller than the length of the curved slide groove in the connecting sleeve 11 in the horizontal direction.

[0025] In the above scheme, it is used to quickly cut off the power transmission between the circular saw blade and the power frame 3; the rear end of the sliding shaft 8 is located in the sliding cavity of the rotating shaft 7, and the left side of the sliding shaft 8 is spline-connected to the rotating shaft 7, which is used to discharge the gas on the front side of the sliding cavity of the rotating shaft 7; the spring in the rotating sleeve 9 is used to adjust the resistance of the detection rod 10 when it moves backward; the limit column 101 is located in the rotating sleeve 9, and is used when the rotating sleeve 9 rotates, the rotating sleeve 9 squeezes the limit column 101 through the through hole thereon, thereby driving the detection rod 10 to rotate synchronously, and the front side of the limit column 101 is a hemispherical surface, which is used to reduce the limit column 101 and the detection rod 10 in the process of entering the through hole in the detection rod 10. The connecting sleeve 11 is used to squeeze the protrusion of the detection rod 10 through the curved groove thereon when the circular saw blade is stuck during the process of being driven to rotate by the connecting sleeve 11, so that the protrusion drives the detection rod 10 to rotate and move backward relative to the connecting sleeve 11, and the detection rod 10 moves backward and compresses the adjacent spring, so that the limit column 101 moves backward relative to the rotating sleeve 9 and separates from the through hole on the rotating sleeve 9, thereby disconnecting the power transmission between the circular saw blade and the power frame 3. The length of the curved groove in the connecting sleeve 11 is used to ensure that the limit column 101 is separated from the through hole on the detection rod 10 after the detection rod 10 and the connecting sleeve 11 move relative to each other to the maximum distance.

[0026] like Figure 7 and Figure 8As shown, it also includes: a U-shaped frame 13, which is slidably connected to the slider 201, a spring is arranged between the U-shaped frame 13 and the slider 201, and the slider 201 is limitedly matched with the limit plate 12 to limit the unidirectional movement of the limit plate 12; a measuring component, which is arranged on the measuring push rod 51, and is used to adjust the resistance encountered by the detection rod 10 when it moves.

[0027] like Figure 7 and Figure 8 As shown, a slope is provided on one side of the U-shaped frame 13 close to the central axis of the rotating sleeve 9 , and the slope is located on the side away from the rotating shaft 7 .

[0028] In the above scheme, after the limit post 101 is separated from the through hole of the rotating sleeve 9, the position of the detection rod 10 is fixed to prevent the detection rod 10 from repeatedly moving. The U-shaped frame 13 is used to fix the limit plate 12 after it moves to the position between the rotating sleeve 9 and the front vertical rod of the U-shaped frame 13, so that the limit plate 12 cannot move forward, to avoid that after the limit post 101 is separated from the through hole of the rotating sleeve 9, the limit plate 12 drives the reverse rotation under the action of the torsion spring, and after the limit post 101 is aligned with the through hole of the rotating sleeve 9 again, the detection rod 10 moves forward again and resets under the push of the adjacent spring, causing the detection rod 10 to repeat the above process and move backward again, causing the circular saw blade to repeatedly hit the raw material, aggravating the installation. The inclined surface of the U-shaped frame 13 faces the direction of the limiting plate 12, and is used to make the limiting plate 12 squeeze the adjacent inclined surface on the U-shaped frame 13 when the limiting plate 12 moves backward, thereby pushing the U-shaped frame 13 to move, and until the limiting column 101 is separated from the through hole of the detection rod 10, the limiting plate 12 is separated from the adjacent inclined surface of the U-shaped frame 13, and the U-shaped frame 13 moves in the opposite direction to reset, and the vertical rod on the front side of the U-shaped frame 13 blocks the limiting plate 12, so that the limiting plate 12 cannot move forward; the measuring component is used to measure the diameter of the raw material and push the sliding shaft 8 to move, so that the sliding shaft 8 compresses the spring between the detection rod 10, thereby adjusting the resistance encountered by the detection rod 10 when it moves backward.

[0029] like Figure 5 , Fig.10 and Fig.11 As shown, the measuring assembly includes: a guide plate 16, which is arranged on the measuring push rod 51, and the guide plate 16 is slidably connected to the positioning block 52; a hydraulic pipe 17, which is slidably connected to the telescopic end of the measuring push rod 51, and the hydraulic pipe 17 is connected to the sliding cavity of the rotating shaft 7 through a hose; a positioning plate 18, which is fixed to the hydraulic pipe 17, and the positioning plate 18 is slidably connected to the guide plate 16, and the positioning plate 18 is slidably connected to the positioning block 52.

[0030] In the above scheme, the measuring push rod 51 is used to detect the diameter of the raw material and adjust the compression degree of the spring in the rotating sleeve 9 so that the resistance encountered by the detection rod 10 when moving backward matches the diameter of the raw material. The guide plate 16 is located on the mounting frame on the measuring push rod 51 and is used to guide the movement of the positioning block 52; the hydraulic pipe 17 is filled with hydraulic oil. After the positioning block 52 contacts the raw material, the telescopic end of the measuring push rod 51 squeezes the hydraulic oil in the hydraulic pipe 17, so that the hydraulic oil in the hydraulic pipe 17 enters the sliding cavity of the rotating shaft 7, thereby pushing the connecting sliding shaft 8 to move and compress the adjacent springs, thereby adjusting the resistance encountered by the detection rod 10 when compressing the adjacent springs; the positioning plate 18 is located on the lower side of the hydraulic pipe 17; the lower side surface of the positioning block 52 is a plane, which is used to determine the upper edge of the shaft rod, thereby determining the diameter of the shaft rod.

[0031] like Figure 7 and Figure 8 As shown, it also includes: an extrusion plate 14, which is slidably connected to the sliding shaft 8, a damping is arranged between the extrusion plate 14 and the sliding shaft 8, and the extrusion plate 14 is located between the rotating shaft 7 and the rotating sleeve 9, the extrusion plate 14 is slidably connected to the slider 201, and the rotating shaft 7, the rotating sleeve 9 and the U-shaped frame 13 are all extruded and matched with the extrusion plate 14.

[0032] like Figure 7 and Figure 8 As shown, the minimum distance between the U-shaped frame 13 and the rotating shaft 7 in the horizontal direction is smaller than the thickness of the extrusion plate 14 , so that the U-shaped frame 13 is always in contact with the circumference of the extrusion plate 14 .

[0033] In the above scheme, after the circular saw blade is separated from the raw material, the U-shaped frame 13 is used to release the fixation of the limit plate 12. After the hydraulic oil in the hydraulic pipe 17 enters the sliding cavity of the rotating shaft 7, the hydraulic oil in the sliding cavity of the rotating shaft 7 pushes the sliding shaft 8 to move backward, driving the extrusion plate 14 to synchronously move the inclined surface of the vertical rod at the rear side of the extrusion U-shaped frame 13, so that the U-shaped frame 13 moves upward and releases the limit of the limit plate 12, so that the detection rod 10 moves forward and resets under the push of the adjacent spring. The rotating shaft 7 and the rotating sleeve 9 are used to control the extrusion The distance that the plate 14 moves, the rotating shaft 7 is used to limit the backward movement of the extrusion plate 14 when the extrusion plate 14 contacts the rotating shaft 7 during the process in which the sliding shaft 8 drives the extrusion plate 14 to move backward, and the rotating sleeve 9 is used to limit the forward movement of the extrusion plate 14 after it contacts the extrusion plate 14. The thickness of the extrusion plate 14 is used to prevent it from moving backward too far and moving between the U-shaped frame 13 and the rotating shaft 7, resulting in the separation of the extrusion plate 14 from the inclined surface of the U-shaped frame 13, so that the extrusion plate 14 cannot push the U-shaped frame 13 to move upward.

[0034] Working process: During the process of measuring the diameter of the raw material by the second fixture 5, after the positioning block 52 contacts the upper side of the raw material and stops moving, the telescopic end of the measuring push rod 51 squeezes the hydraulic oil in the hydraulic pipe 17, causing the sliding shaft 8 to move forward and compress the adjacent spring, thereby increasing the resistance of the detection rod 10 when moving backward, until the telescopic end of the measuring push rod 51 is fully extended, and the sliding shaft 8 stops moving. During the rotation of the circular saw blade, when the circular saw blade is stuck, the resistance of the detection rod 10 to drive the connecting sleeve 11 to rotate increases, the detection rod 10 moves backward and compresses the adjacent spring, the limit plate 12 squeezes the U-shaped frame 13 upward, and the U-shaped frame 13 moves upward to compress the corresponding The adjacent spring is pressed until the limit column 101 is separated from the through hole of the rotating sleeve 9, and the limit plate 12 is separated from the adjacent inclined surface on the U-shaped frame 13. The U-shaped frame 13 moves downward and fixes the limit plate 12 under the push of the spring, so that the detection rod 10 cannot move forward. Then the staff turns off the power supply of the power frame 3 and resets the sliding frame 2, the telescopic block 42 and the positioning block 52. During this process, the hydraulic pipe 17 extracts the hydraulic oil in the sliding cavity of the rotating shaft 7, so that the sliding shaft 8 drives the extrusion plate 14 to move backward and squeezes the U-shaped frame 13 to move upward, so that the U-shaped frame 13 releases the limit on the limit plate 12, and the detection rod 10 moves forward and resets. Then the staff replaces the circular saw blade.

[0035] like Fig.11 As shown, it also includes: an L-shaped plate 20, which is slidably connected to the positioning plate 18, the positioning plate 18 is provided with a slide groove, the L-shaped plate 20 slides in the slide groove, a tension spring is provided between the L-shaped plate 20 and the positioning plate 18, the L-shaped plate 20 is squeezed and matched with the positioning block 52, the guide plate 16 is provided with a plurality of limit grooves, and the L-shaped plate 20 and the limit grooves of the guide plate 16 are limitedly matched.

[0036] In the above scheme, the circular saw blade is used to prevent the positioning block 52 from shaking when cutting the raw material, resulting in a constant change in the amount of hydraulic oil compressed in the hydraulic pipe 17. The L-shaped plate 20 is located between the positioning plate 18 and the positioning block 52. After the positioning block 52 contacts the raw material, the positioning block 52 moves upward relative to the positioning plate 18, so that the positioning block 52 squeezes the L-shaped plate 20, and the L-shaped plate 20 moves into the adjacent limiting groove of the guide plate 16 and stretches the adjacent tension spring, so that the limiting positioning block 52 pushes the positioning plate 18 to move upward, thereby ensuring the stability of the position of the hydraulic pipe 17, thereby reducing the fluctuation of the resistance of the spring in the rotating sleeve 9 to the detection rod 10, thereby improving the stability of the device.

[0037] like Fig.11 As shown, the thickness of the horizontal portion of the L-shaped plate 20 is less than the height of the slide groove in the positioning plate 18, and the difference between the thickness of the horizontal portion of the L-shaped plate 20 and the slide groove in the positioning plate 18 is the same as the thickness of the limit groove in the guide plate 16, which is used to make the horizontal portion of the L-shaped plate 20 fit in the limit groove in the guide plate 16.

[0038] In the above scheme, in order to increase the fixing range of the L-shaped plate 20, when the positioning block 52 moves upward relative to the positioning plate 18, the positioning block 52 squeezes the L-shaped plate 20, so that the L-shaped plate 20 moves upward while extending outward until the upper side surface of the L-shaped plate 20 contacts the adjacent guide groove on the guide plate 16, and then the L-shaped plate 20 stops moving. After the L-shaped plate 20 extends the maximum distance, the positioning block 52 stops moving.

[0039] Working process: the telescopic end of the measuring push rod 51 drives the hydraulic pipe 17 and the parts thereon to move until the positioning block 52 contacts the raw material, and the positioning plate 18 drives the parts thereon to move downward relative to the positioning block 52, so that the positioning block 52 squeezes the L-shaped plate 20, and the L-shaped plate 20 enters the adjacent limiting groove to complete the limiting. After the positioning block 52 and the positioning plate 18 stop moving relative to each other, the L-shaped plate 20 completes the fixation of the positioning block 52, thereby preventing the positioning block 52 from moving during the process of cutting the raw material.

[0040] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A cutting device for machining a gearbox shaft with a fixed structure, characterized in that: Included are: Cutting table (1); A sliding frame (2) is arranged on the cutting bed (1), the sliding frame (2) is used to drive the circular saw blade to move, a sliding block (201) is arranged inside the sliding frame (2), and the sliding block (201) is provided with a knife holder; A power frame (3) is arranged on the sliding frame (2) and is used to drive the circular saw blade to rotate; A first fixture (4) is arranged on the cutting bed (1); a second fixer (5) disposed on the first fixer (4), the second fixer (5) comprising a measuring push rod (51), a positioning block (52) being disposed at the telescopic end of the measuring push rod (51), the first fixer (4) and the second fixer (5) being used together to fix the shaft rod; A connector (6) is arranged on the slider (201), and the connector (6) is used to cut off the power transmission between the circular saw blade and the power frame (3) when the circular saw blade is stuck.

2. A cutting device for machining a gearbox shaft with a fixed structure according to claim 1, characterized in that: The connector (6) comprises: A rotating shaft (7) is rotatably connected to the sliding frame (2); the rotating shaft (7) and the power frame (3) are driven by a belt and a pulley; the rotating shaft (7) is spline-connected to a sliding shaft (8); the rotating shaft (7) is provided with a sliding cavity; the sliding shaft (8) slides in the sliding cavity; the sliding shaft (8) is slidably connected to a rotating sleeve (9); and the rotating sleeve (9) is rotatably connected to the sliding block (201); A detection rod (10) is rotatably connected to the rotating sleeve (9), a spring is provided between the detection rod (10) and the sliding shaft (8), a limiting column (101) is fixedly connected to the detection rod (10), the rotating sleeve (9) is provided with a through hole, the detection rod (10) is limitedly matched with the through hole, a connecting sleeve (11) is rotatably connected to the sliding block (201), a curved sliding groove is provided in the connecting sleeve (11), a convex block is fixedly connected to one end of the detection rod (10) away from the rotating sleeve (9), the convex block of the detection rod (10) is pressed and matched with the curved sliding groove of the connecting sleeve (11), and the connecting sleeve (11) is fixedly connected to the circular saw blade; A limit plate (12) is fixedly connected to the detection rod (10); the limit plate (12) is rotatably connected to the slider (201); a torsion spring is provided between the limit plate (12) and the slider (201); and the limit plate (12) is located between the rotating sleeve (9) and the connecting sleeve (11).

3. A cutting device for machining a gearbox shaft with a fixed structure according to claim 2, characterized in that: The length of the limiting column (101) is smaller than the length of the curved sliding groove in the connecting sleeve (11) in the horizontal direction.

4. A cutting device for machining a gearbox shaft with a fixed structure according to claim 2, characterized in that: Also included are: A U-shaped frame (13) is slidably connected to the slider (201); a spring is provided between the U-shaped frame (13) and the slider (201); the slider (201) is in position-limiting cooperation with the limit plate (12) to limit the unidirectional movement of the limit plate (12); A measuring assembly is arranged on the measuring push rod (51) and is used to adjust the resistance encountered by the detection rod (10) when it moves.

5. A cutting device for machining a gearbox shaft with a fixing structure according to claim 4, characterized in that: A slope is provided on a side of the U-shaped frame (13) close to the central axis of the rotating sleeve (9), and the slope is located on a side away from the rotating shaft (7).

6. A cutting device for machining a gearbox shaft with a fixing structure according to claim 4, characterized in that: The measuring components include: A guide plate (16) is disposed on the measuring push rod (51), and the guide plate (16) is slidably connected to the positioning block (52); A hydraulic pipe (17) is slidably connected to the telescopic end of the measuring push rod (51), and the hydraulic pipe (17) is connected to the sliding cavity of the rotating shaft (7) through a hose; A positioning plate (18) is fixedly connected to the hydraulic pipe (17), the positioning plate (18) is slidably connected to the guide plate (16), and the positioning plate (18) is slidably connected to the positioning block (52).

7. A cutting device for machining a gearbox shaft with a fixing structure according to claim 6, characterized in that: Also included are: An extrusion plate (14) is slidably connected to the sliding shaft (8), a damper is provided between the extrusion plate (14) and the sliding shaft (8), and the extrusion plate (14) is located between the rotating shaft (7) and the rotating sleeve (9), the extrusion plate (14) is slidably connected to the slider (201), and the rotating shaft (7), the rotating sleeve (9) and the U-shaped frame (13) are all extrusion-matched with the extrusion plate (14).

8. A cutting device for machining a gearbox shaft with a fixing structure according to claim 7, characterized in that: The minimum distance between the U-shaped frame (13) and the rotating shaft (7) in the horizontal direction is smaller than the thickness of the extrusion plate (14), so that the U-shaped frame (13) is always in contact with the circumference of the extrusion plate (14).

9. A cutting device for machining a gearbox shaft with a fixing structure according to claim 6, characterized in that: Also included are: The L-shaped plate (20) is slidably connected to the positioning plate (18); the positioning plate (18) is provided with a slide groove, and the L-shaped plate (20) is located in the slide groove and slides; a tension spring is provided between the L-shaped plate (20) and the positioning plate (18); the L-shaped plate (20) is pressed and matched with the positioning block (52); the guide plate (16) is provided with a plurality of limit grooves, and the L-shaped plate (20) is limitedly matched with the limit grooves of the guide plate (16).

10. A cutting device for machining a gearbox shaft with a fixing structure according to claim 9, characterized in that: The thickness of the horizontal portion of the L-shaped plate (20) is less than the height of the inner slide groove of the positioning plate (18), and the difference between the thickness of the horizontal portion of the L-shaped plate (20) and the inner slide groove of the positioning plate (18) is the same as the thickness of the inner limit groove of the guide plate (16), so as to enable the horizontal portion of the L-shaped plate (20) to be limitedly matched with the inner limit groove of the guide plate (16).

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