Cutting machine for hydraulic oil pipe

Abstract

The utility model discloses a cutting machine for a hydraulic oil pipe, and relates to the technical field of hydraulic oil pipe machining. The device comprises a workbench, a cutting assembly is arranged at the rear end of the top of the workbench, and clamping assemblies are arranged on the two sides of the front end of the top of the workbench; a U-shaped frame in the cutting assembly is fixedly connected to the rear end of the top of the workbench, a movable arm is movably connected to the interior of the U-shaped frame in the transverse direction, a cutting blade is movably connected to the front end of the lower portion of the movable arm, a mounting block is welded to the rear end of the top of the movable arm, and the top of the mounting block movably penetrates through a transverse supporting arm of the U-shaped frame and is fixedly connected with an infrared transmitter. The moving arm is controlled to move through an infrared transmitter and an infrared receiver in the cutting assembly, the problem that in the prior art, the cutting position needs to be manually positioned is solved, a hydraulic oil pipe is driven to move through a driving wheel and a riding wheel in the clamping assembly, and the problem that in the prior art, automatic feeding and discharging are not convenient is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic oil pipe processing, in particular to a cutting machine for hydraulic oil pipes. Background Art

[0002] Hydraulic oil pipe is an important part of the hydraulic system. It is mainly composed of a liquid-resistant inner rubber layer, a middle rubber layer, 2 or 4 or 6 layers of steel wire winding reinforcement layer, and an outer rubber layer. Its main functions include connecting hydraulic components, conveying hydraulic oil, and bearing pressure, etc. In the production and processing of hydraulic oil pipes, a large number of mechanical processing equipment will be used. Among them, the cutting machine is one of the most common mechanical equipment for hydraulic oil pipe processing. The use of the cutting machine facilitates the cutting of hydraulic oil pipes.

[0003] The existing document with publication number CN220761182U discloses a fixed-length cutting device for the production of hydraulic steering oil pipes, including a cutting table and a support, wherein the support is fixedly mounted at the bottom end of the cutting table, and a cutting mechanism and a clamping mechanism are arranged at the top end of the cutting table;

[0004] However, it still has the following disadvantages in actual use:

[0005] 1. In the above-mentioned fixed-length cutting device, a scale plate is installed on the top of the fixed frame, and an indicator needle is installed on the top of the adjustment block. The scale plate and the indicator needle are used to achieve fixed-length cutting. However, during use, the staff needs to manually turn off the motor according to the position of the indicator needle on the scale plate so that the cutter stays at the specified position. The manual operation has poor accuracy and is prone to errors in cutting position due to staff errors, resulting in poor accuracy.

[0006] 2. The fixed-length cutting device mentioned above has a base that is movably installed in a groove through a movable block, and a fixed seat is provided on the top of the base. The hydraulic oil pipe is clamped and fixed by the base and the fixed seat. However, it lacks a structure to assist the hydraulic oil pipe in loading and unloading, which requires the staff to manually load and unload the materials, increasing the workload of the staff.

[0007] To this end, we provide a cutting machine for hydraulic oil pipes to solve the above problems. Utility Model Content

[0008] The purpose of the utility model is to provide a cutting machine for hydraulic oil pipes, which controls the movement of a movable arm by an infrared transmitter and an infrared receiver in a cutting assembly, thereby solving the existing problem of manually positioning the cutting position, and drives the hydraulic oil pipes to move by a driving wheel and a supporting wheel in a clamping assembly, thereby solving the existing problem of inconvenience in automatic loading and unloading.

[0009] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0010] The utility model is a cutting machine for hydraulic oil pipes, comprising a workbench, a cutting assembly is arranged at the top rear end of the workbench, and clamping assemblies are arranged on both sides of the top front end of the workbench;

[0011] The U-shaped frame in the cutting assembly is fixedly connected to the top rear end of the workbench, the interior of the U-shaped frame is movably connected to a moving arm in the transverse direction, the lower front end of the moving arm is movably connected to a cutting blade, a mounting block is welded to the top rear end of the moving arm, the top of the mounting block movably penetrates the transverse support arm of the U-shaped frame and is fixedly connected to an infrared transmitter, the top of the transverse support arm of the U-shaped frame is rotatably connected to a second screw rod in the transverse direction, a slider is threadedly sleeved on the outer wall of the second screw rod, and the top of the slider is fixedly connected to an infrared receiver;

[0012] The base plates in the clamping assembly are respectively fixedly connected to both sides of the front end of the top of the workbench, and an L-shaped frame is welded on one side of the front and rear end surfaces of the base plate. The vertical arms of the L-shaped frame are fixedly connected to the second hydraulic cylinder, and the piston shaft of the second hydraulic cylinder is fixedly connected to the U-shaped frame. The interior of the U-shaped frame is movably connected to multiple groups of driving wheels at equal intervals in the horizontal direction, and support wheels are movably connected to the lower sides of adjacent driving wheels at equal intervals in the horizontal direction.

[0013] The utility model is further configured as follows: a first drive motor is fixedly connected to a vertical support arm on one side of the U-shaped frame via a first motor frame, an output shaft of the first drive motor is fixedly connected to a first screw rod via a coupling, one end of the first screw rod away from the first drive motor is rotatably connected to the vertical support arm on the other side of the U-shaped frame, and a rear end of the movable arm is threadedly sleeved on an outer wall of the first screw rod.

[0014] The utility model is further configured as follows: a first hydraulic cylinder is fixedly connected to the top front end of the movable arm, a second motor frame is fixedly connected to the piston shaft of the first hydraulic cylinder, a second drive motor is fixedly connected to the interior of the second motor frame, and a cutting blade is fixedly connected to the output shaft of the second drive motor.

[0015] The utility model is further configured as follows: both sides of the top of the U-shaped frame transverse support arm are fixedly connected with bearing seats, and both ends of the second screw rod are rotated to pass through the bearing seats and are fixedly connected with the first knob.

[0016] The utility model is further configured as follows: a scale plate is fixedly connected to the rear end of the horizontal support arm of the U-shaped frame, scale lines are engraved on the front end surface of the scale plate at equal intervals in the horizontal direction, and a pointer is welded to the top rear end of the slider.

[0017] The utility model is further configured as follows: the U-shaped frame is internally rotatably connected to a plurality of rotating shafts, the top ends of the rotating shafts rotate and penetrate through the top of the U-shaped frame and are sleeved with double groove wheels, the driving wheels are sleeved on the outer walls of the rotating shafts, the vertical arms of the U-shaped frame are fixedly connected to a third driving motor via a third motor frame, a single groove wheel is sleeved on the output shaft of the third driving motor, and the double groove wheels and the double groove wheels and the single groove wheel are connected via belt transmission.

[0018] The utility model is further configured as follows: a fixing plate is fixedly connected to one side of the upper surface of the bottom plate, a plurality of groups of mounting seats are welded on the front and rear end surfaces of the fixing plate at equal intervals in the horizontal direction, and the supporting wheel is rotatably connected between the front and rear adjacent mounting seats.

[0019] The utility model is further configured as follows: a mounting frame is fixedly connected to the other side of the upper surface of the base plate, a lower clamping block is fixedly connected to the lower interior of the mounting frame, an upper clamping block is movably connected to the upper interior of the mounting frame, a threaded rod is threaded through the top thread of the mounting frame, a second knob is fixedly connected to the top of the threaded rod, and the bottom end of the threaded rod is rotatably connected to the top of the upper clamping block.

[0020] The utility model is further configured as follows: grooves are vertically provided at the front and rear ends of the mounting frame, and projections are movably connected inside the grooves. One end of the projections penetrates the grooves and is respectively welded to both sides of the front and rear end surfaces of the upper clamping block.

[0021] The utility model has the following beneficial effects:

[0022] 1. The utility model sets a cutting assembly, drives the infrared receiver to move through the threaded connection between the bidirectional lead screw and the slider, and controls the movement of the moving arm through the infrared signal transmission between the infrared transmitter and the infrared receiver, thereby realizing accurate positioning of the cutting position of the hydraulic oil pipe, thereby facilitating cutting the hydraulic oil pipe into a specified length.

[0023] 2. The utility model places the hydraulic oil pipe on the supporting wheel by setting a clamping component, drives the driving wheel to rotate through the third driving motor, and drives the hydraulic oil pipe to move on the supporting wheel through the rotation of the driving wheel, thereby realizing automatic loading and unloading of the hydraulic oil pipe and reducing the workload of the staff.

[0024] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a schematic diagram of the overall structure of a cutting machine for hydraulic oil pipes;

[0027] Figure 2 It is a structural schematic diagram of the cutting assembly of the utility model;

[0028] Figure 3 It is a structural schematic diagram of the movable arm of the utility model;

[0029] Figure 4 This is a schematic diagram of the structure of the second screw rod of the utility model;

[0030] Figure 5 It is a structural schematic diagram of the clamping assembly of the utility model;

[0031] Figure 6 This is a schematic diagram of the structure of the driving wheel of the utility model;

[0032] Figure 7 This is a schematic diagram of the structure of the supporting wheel of the utility model;

[0033] Figure 8 This is a structural disassembly diagram of the mounting frame of the utility model.

[0034] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0035] 1- workbench, 2- cutting assembly, 201- U-shaped frame, 202- moving arm, 202a- first motor frame, 202b- first drive motor, 202c- first screw rod, 203- cutting blade, 203a- first hydraulic cylinder, 203b- second motor frame, 203c- second drive motor, 204- mounting block, 205- infrared transmitter, 206- second screw rod, 206a- bearing seat, 206b- first knob, 207- slider, 207a- pointer, 208- infrared receiver, 209- scale plate, 209a- scale line, 3-clamping assembly, 301-bottom plate, 302-L-shaped frame, 303-second hydraulic cylinder, 304-U-shaped frame, 305-driving wheel, 305a-rotating shaft, 305b-double groove wheel, 305c-third motor frame, 305d-third driving motor, 305e-single groove wheel, 305f-belt, 306-supporting wheel, 306a-fixed plate, 306b-mounting seat, 307-mounting frame, 307a-groove, 308-lower clamping block, 309-upper clamping block, 309a-threaded rod, 309b-second knob, 309c-bump. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment 1

[0038] See also Figure 1-4 As shown, it is the first embodiment of the utility model, which provides a cutting machine for hydraulic oil pipes, including a workbench 1 and a cutting assembly 2, and the cutting assembly 2 includes a U-shaped frame 201, a movable arm 202, a cutting blade 203, an infrared transmitter 205, a second screw rod 206, a slider 207 and an infrared receiver 208. The movement of the movable arm 202 and the cutting disc is controlled by infrared signal transmission between the infrared transmitter 205 and the infrared receiver 208, thereby solving the existing problem of inaccurate cutting position positioning of the hydraulic oil pipe.

[0039] Specifically, the U-shaped frame 201 is fixedly connected to the top rear end of the workbench 1, and the interior of the U-shaped frame 201 is movably connected to a moving arm 202 in the horizontal direction, and a cutting blade 203 is movably connected to the lower front end of the moving arm 202, and a mounting block 204 is welded to the top rear end of the moving arm 202, and the top of the mounting block 204 movably passes through the horizontal support arm of the U-shaped frame 201 and is fixedly connected to an infrared transmitter 205, and the top of the horizontal support arm of the U-shaped frame 201 is rotatably connected to a second screw rod 206 in the horizontal direction, and a slider 207 is threadedly sleeved on the outer wall of the second screw rod 206, and an infrared receiver 208 is fixedly connected to the top of the slider 207, and the U-shaped frame 201 is used to move the moving arm 202. The movable arm 202 and other structures are installed. The movable arm 202 is used to install the cutting blade 203 and drive the cutting blade 203 to move horizontally. The cutting blade 203 is used to cut the hydraulic oil pipe. The mounting block 204 is used to install the infrared transmitter 205 on the movable arm 202, and the infrared transmitter 205 is used to emit infrared rays to the outside. The second screw rod 206 and the slider 207 are used to install the infrared receiver 208 and drive the infrared receiver 208 to move horizontally. The infrared receiver 208 is used to receive infrared rays and control the movement of the movable arm 202.

[0040] Furthermore, a first drive motor 202b is fixedly connected to the vertical support arm on one side of the U-shaped frame 201 through a first motor frame 202a, and an output shaft of the first drive motor 202b is fixedly connected to a first screw rod 202c through a coupling, and one end of the first screw rod 202c away from the first drive motor 202b is rotatably connected to the vertical support arm on the other side of the U-shaped frame 201, and a rear end of the movable arm 202 is threadedly sleeved on an outer wall of the first screw rod 202c, and the first motor frame 202a is used to install the first drive motor 202b, and the first drive motor 202b is used to drive the first screw rod 202c to rotate, and the first screw rod 202c is used to drive the movable arm 202 to move horizontally;

[0041] The top front end of the moving arm 202 is fixedly connected with a first hydraulic cylinder 203a, the piston shaft of the first hydraulic cylinder 203a is fixedly connected with a second motor frame 203b, the interior of the second motor frame 203b is fixedly connected with a second drive motor 203c, the cutting blade 203 is fixedly connected to the output shaft of the second drive motor 203c, the first hydraulic cylinder 203a is used to adjust the height of the cutting blade 203, the second motor frame 203b is used to install the second drive motor 203c on the piston shaft of the first hydraulic cylinder 203a, and the second drive motor 203c is used to drive the cutting blade 203 to rotate;

[0042] The top two sides of the horizontal support arm of the U-shaped frame 201 are fixedly connected with bearing seats 206a, and both ends of the second screw rod 206 rotate through the bearing seats 206a and are fixedly connected with first knobs 206b. The bearing seats 206a are used to install the second screw rod 206, and the first knob 206b is convenient for rotating the second screw rod 206.

[0043] A scale plate 209 is fixedly connected to the rear end of the horizontal support arm of the U-shaped frame 201, and scale lines 209a are engraved on the front end surface of the scale plate 209 at equal intervals in the horizontal direction. A pointer 207a is welded to the top rear end of the slider 207. The arrangement of the pointer 207a, the scale plate 209 and the scale lines 209a facilitates the positioning of the infrared receiver 208.

[0044] The operation process of this embodiment is as follows: first, the first knob 206b is rotated, and the first knob 206b drives the second screw rod 206 to rotate synchronously, and under the action of the threaded connection between the second screw rod 206 and the slider 207, the slider 207 drives the infrared receiver 208 to move horizontally, and the position of the infrared receiver 208 is determined by the pointer 207a and the scale line 209a, and then the first drive motor 202b is started, and the output shaft of the first drive motor 202b drives the first screw rod 202c to rotate synchronously, and the first screw rod 202c and the movable arm 202c are connected to each other. Under the action of the threaded connection, the movable arm 202 drives the cutting blade 203 to move horizontally, and at the same time drives the infrared transmitter 205 to move horizontally. When the infrared rays emitted by the infrared transmitter 205 are received by the infrared receiver 208, the infrared receiver 208 turns off the first drive motor 202b through the external control end. At this time, the cutting blade 203 stays in the cutting position. Finally, the cutting blade 203 is driven to move by the first hydraulic cylinder 203a and the second drive motor 203c, and the cutting blade 203 is used to cut the hydraulic oil pipe. Specific embodiment 2

[0046] See also Figure 5-8 As shown, it is the second embodiment of the utility model, which is based on the previous embodiment, but is different from the previous embodiment in that: clamping assemblies 3 are arranged on both sides of the top front end of the workbench 1, and the clamping assembly 3 includes a base plate 301, an L-shaped frame 302, a second hydraulic cylinder 303, a U-shaped frame 304, a driving wheel 305 and a supporting wheel 306. The hydraulic oil pipe is placed by the supporting wheel 306, and the hydraulic oil pipe is driven to move by the driving wheel 305, which solves the existing problem of inconvenience in automatic loading and unloading of the hydraulic oil pipe.

[0047] Specifically, the base plate 301 is fixedly connected to both sides of the front end of the top of the workbench 1, and an L-shaped frame 302 is welded on one side of the front and rear end surfaces of the base plate 301. The vertical support arms of the L-shaped frame 302 are fixedly connected with the second hydraulic cylinder 303, and the piston shaft of the second hydraulic cylinder 303 is fixedly connected with the U-shaped frame 304. The interior of the U-shaped frame 304 is movably connected with multiple groups of driving wheels 305 at equal intervals in the horizontal direction, and the lower parts of the adjacent driving wheels 305 are movably connected with supporting wheels 306 at equal intervals in the horizontal direction. The base plate 301 is used to install structures such as the L-shaped frame 302, the L-shaped frame 302 is used to install the second hydraulic cylinder 303, the second hydraulic cylinder 303 is used to drive the U-shaped frame 304 to move, the U-shaped frame 304 is used to install the driving wheel 305, the driving wheel 305 is used to drive the hydraulic oil pipe to move, and the supporting wheel 306 is used to place the hydraulic oil pipe.

[0048] Furthermore, the U-shaped frame 304 is internally rotatably connected to a plurality of rotating shafts 305a, the top of the rotating shaft 305a rotates through the top of the U-shaped frame 304 and is sleeved with a double groove wheel 305b, the driving wheels 305 are sleeved on the outer wall of the rotating shaft 305a, the vertical support arms of the U-shaped frame 304 are fixedly connected to the third driving motor 305d through the third motor frame 305c, the output shaft of the third driving motor 305d is sleeved with a single groove wheel 305e, and the double groove wheels 305b and the double groove wheels 305b and the single groove wheel 305e are sleeved. 05e are connected by a belt 305f, the setting of the rotating shaft 305a is used to movably install the driving wheel 305 inside the U-shaped frame 304, the setting of the double groove wheel 305b is used to drive the rotating shaft 305a to rotate synchronously, the setting of the third motor frame 305c is used to install the third driving motor 305d, the setting of the third driving motor 305d is used to drive the single groove wheel 305e to rotate, and the setting of the single groove wheel 305e and the belt 305f is used to drive the double groove wheel 305b to rotate;

[0049] A fixing plate 306a is fixedly connected to one side of the upper surface of the bottom plate 301. A plurality of groups of mounting seats 306b are welded at equal intervals in the horizontal direction on the front and rear end surfaces of the fixing plate 306a. The supporting wheel 306 is rotatably connected between the front and rear adjacent mounting seats 306b. The fixing plate 306a is used to install the mounting seats 306b, and the mounting seats 306b are used to install the supporting wheel 306.

[0050] The other side of the upper surface of the bottom plate 301 is fixedly connected with a mounting frame 307, a lower clamping block 308 is fixedly connected to the lower part of the mounting frame 307, an upper clamping block 309 is movably connected to the upper part of the mounting frame 307, a threaded rod 309a is threaded through the top of the mounting frame 307, a second knob 309b is fixedly connected to the top of the threaded rod 309a, and the bottom end of the threaded rod 309a is rotatably connected to the top of the upper clamping block 309, the mounting frame 307 is used to install the lower clamping block 308 and the upper clamping block 309, the lower clamping block 308 and the upper clamping block 309 are used to clamp and fix the hydraulic oil pipe, the threaded rod 309a is used to drive the upper clamping block 309 to move up and down, and the second knob 309b is convenient for rotating the threaded rod 309a;

[0051] Grooves 307a are vertically provided at the front and rear ends of the mounting frame 307, and protrusions 309c are movably connected inside the grooves 307a. One end of the protrusion 309c passes through the grooves 307a and is respectively welded to both sides of the front and rear end surfaces of the upper clamping block 309. The setting of the grooves 307a and the protrusions 309c enables the upper clamping block 309 to be movably installed on the inner side of the mounting frame 307.

[0052] The rest of the structure is the same as that of the first embodiment.

[0053] The operation process of this embodiment is: first, the hydraulic oil pipe is placed on the supporting wheel 306, and the third drive motor 305d is started. The output shaft of the third drive motor 305d drives the single groove wheel 305e to rotate synchronously, and under the transmission action of the belt 305f, the double groove wheel 305b drives the rotating shaft 305a to rotate synchronously, so that the driving wheel 305 is driven to rotate through the rotating shaft 305a, and an external force is applied to the hydraulic oil pipe through the rotating driving wheel 305, so that the hydraulic oil pipe moves laterally on the supporting wheel 306, thereby realizing automatic loading and unloading of the hydraulic oil pipe.

[0054] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0055] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A cutting machine for hydraulic oil pipes, comprising a workbench (1), a cutting assembly (2) being arranged at the top rear end of the workbench (1), and clamping assemblies (3) being arranged on both sides of the top front end of the workbench (1), characterized in that: The U-shaped frame (201) in the cutting assembly (2) is fixedly connected to the top rear end of the workbench (1), and the interior of the U-shaped frame (201) is movably connected to a movable arm (202) in the transverse direction, and the lower front end of the movable arm (202) is movably connected to a cutting blade (203), and a mounting block (204) is welded to the top rear end of the movable arm (202), the top of the mounting block (204) movably passes through the transverse support arm of the U-shaped frame (201) and is fixedly connected to an infrared transmitter (205), and the top of the transverse support arm of the U-shaped frame (201) is rotatably connected to a second screw rod (206) in the transverse direction, a slider (207) is threadedly sleeved on the outer wall of the second screw rod (206), and the top of the slider (207) is fixedly connected to an infrared receiver (208); The base plate (301) in the clamping assembly (3) is respectively fixedly connected to both sides of the front end of the top of the workbench (1), and an L-shaped frame (302) is welded to one side of the front and rear end surfaces of the base plate (301), and the vertical support arms of the L-shaped frame (302) are fixedly connected to the second hydraulic cylinder (303), and the piston shaft of the second hydraulic cylinder (303) is fixedly connected to the U-shaped frame (304), and the interior of the U-shaped frame (304) is movably connected to multiple groups of driving wheels (305) at equal intervals in the horizontal direction, and the lower parts of adjacent driving wheels (305) are movably connected to supporting wheels (306) at equal intervals in the horizontal direction.

2. A cutting machine for hydraulic oil pipe according to claim 1, characterized in that: A first drive motor (202b) is fixedly connected to a vertical support arm on one side of the U-shaped frame (201) via a first motor frame (202a), and an output shaft of the first drive motor (202b) is fixedly connected to a first screw rod (202c) via a coupling; one end of the first screw rod (202c) away from the first drive motor (202b) is rotatably connected to a vertical support arm on the other side of the U-shaped frame (201), and a rear end of the movable arm (202) is threadedly sleeved on an outer wall of the first screw rod (202c).

3. A cutting machine for hydraulic oil pipe according to claim 1, characterized in that: The top front end of the movable arm (202) is fixedly connected to a first hydraulic cylinder (203a), and the piston shaft of the first hydraulic cylinder (203a) is fixedly connected to a second motor frame (203b), the interior of the second motor frame (203b) is fixedly connected to a second drive motor (203c), and the cutting blade (203) is fixedly connected to the output shaft of the second drive motor (203c).

4. A cutting machine for hydraulic oil pipe according to claim 1, characterized in that: Both sides of the top of the transverse support arm of the U-shaped frame (201) are fixedly connected to bearing seats (206a), and both ends of the second screw rod (206) rotate through the bearing seats (206a) and are fixedly connected to the first knob (206b).

5. A cutting machine for hydraulic oil pipe according to claim 1, characterized in that: A scale plate (209) is fixedly connected to the rear end of the transverse support arm of the U-shaped frame (201), and scale lines (209a) are engraved on the front end surface of the scale plate (209) at equal intervals in the transverse direction, and a pointer (207a) is welded to the rear end of the top of the slider (207).

6. A cutting machine for hydraulic oil pipe according to claim 1, characterized in that: The U-shaped frame (304) is internally rotatably connected with a plurality of rotating shafts (305a), and the top end of the rotating shaft (305a) rotates through the top of the U-shaped frame (304) and is sleeved with a double groove wheel (305b), the driving wheels (305) are sleeved on the outer wall of the rotating shaft (305a), the vertical support arms of the U-shaped frame (304) are fixedly connected with a third driving motor (305d) through a third motor frame (305c), and a single groove wheel (305e) is sleeved on the output shaft of the third driving motor (305d), and the double groove wheels (305b) and the double groove wheels (305b) and the single groove wheel (305e) are all connected through belts (305f) for transmission.

7. A cutting machine for hydraulic oil pipe according to claim 1, characterized in that: A fixing plate (306a) is fixedly connected to one side of the upper surface of the bottom plate (301), and a plurality of groups of mounting seats (306b) are welded at equal intervals in the transverse direction on the front and rear end surfaces of the fixing plate (306a), and the supporting wheel (306) is rotatably connected between the front and rear adjacent mounting seats (306b).

8. A cutting machine for hydraulic oil pipe according to claim 7, characterized in that: The other side of the upper surface of the bottom plate (301) is fixedly connected to a mounting frame (307), and a lower clamping block (308) is fixedly connected to the lower part of the mounting frame (307), and an upper clamping block (309) is movably connected to the upper part of the mounting frame (307), and a threaded rod (309a) is threaded through the top of the mounting frame (307), a second knob (309b) is fixedly connected to the top of the threaded rod (309a), and the bottom end of the threaded rod (309a) is rotatably connected to the top of the upper clamping block (309).

9. A cutting machine for hydraulic oil pipe according to claim 8, characterized in that: The front and rear ends of the mounting frame (307) are vertically provided with grooves (307a), and the inside of the grooves (307a) are movably connected with protrusions (309c), one end of the protrusions (309c) passes through the grooves (307a) and is respectively welded to both sides of the front and rear end surfaces of the upper clamping block (309).

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