An automatic cutting machine for hydraulic valve pipe fittings

Abstract

The present invention relates to the field of hydraulic valve pipe cutting technology, specifically an automatic hydraulic valve pipe cutting machine, comprising a base, a cutting group and a conveying group being sequentially mounted on the upper side of the base from left to right, a blanking unit being mounted on the left side of the base, a positioning unit being mounted on the blanking unit, and a straightening unit being mounted on the position of the base corresponding to the conveying group. In the present invention, based on the consistency between the distance between the positioning plate and the cutting group and the preset cutting length of the metal hose-like oil pipe, the auxiliary positioning group is used to make the end of the metal hose-like oil pipe fit with the right side of the positioning plate, thereby making the distance between the end of the metal hose-like oil pipe and the cutting group consistent with the preset cutting length, thereby ensuring the cutting processing accuracy of the metal hose-like oil pipe, and the auxiliary positioning group can also cooperate with the guide plate to straighten the metal hose-like oil pipe left and right, thereby avoiding tilting or misalignment of the cutting port due to elastic deformation during cutting of the metal hose-like oil pipe, thereby improving the cutting processing accuracy of the metal hose-like oil pipe.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic valve pipe cutting, in particular to an automatic cutting machine for hydraulic valve pipes. Background Art

[0002] The hydraulic valve is the core control element in the hydraulic system. It drives the actuator to complete mechanical actions by adjusting the direction, pressure and flow of the hydraulic oil. The hydraulic valve fittings are the key components connecting the hydraulic valve and the oil pipe. Its installation accuracy and sealing are highly dependent on the processing quality of the oil pipe end. Specifically, after cutting, the metal hose oil pipe needs to be adapted to the hydraulic valve fittings through processes such as crimping and flaring to form a complete sealed flow channel. Therefore, the cutting accuracy of the oil pipe is essentially one of the core technical requirements for the assembly of hydraulic valve fittings.

[0003] When existing cutting equipment cuts metal hose-type oil pipes, it usually first transports the metal hose-type oil pipes to the cutting processing position of the cutting equipment through a conveying device, controls the conveying distance according to the cutting length of the metal hose-type oil pipe, and then cuts the metal hose-type oil pipe through the cutting equipment.

[0004] However, the above-mentioned metal hose oil pipe cutting operation has the following problems: 1. Low cutting accuracy: The transmission accuracy error will lead to reduced cutting accuracy of metal hose oil pipes. At the same time, when the metal hose oil pipes are bent and deformed, the cutting line may deviate from the preset position, causing the cutting length to deviate from the actual required length, resulting in further reduction in the cutting accuracy of the metal hose oil pipes.

[0005] 2. Low cutting quality: Since metal hoses have a certain degree of flexibility, when cutting metal hoses, the cut part of the metal hoses may be deformed first, resulting in unevenness and tilting of the cutting port, which reduces the cutting quality of the metal hoses and affects the sealing of the metal hoses in subsequent use. Summary of the Invention

[0006] In order to solve the above technical problems, the present invention adopts the following technical solution: a hydraulic valve pipe automatic cutting machine, comprising a base, a cutting group and a conveying group are installed on the upper side of the base from left to right, a blanking unit is installed on the left side of the base, a positioning unit is installed on the blanking unit, and a straightening unit is installed at the position corresponding to the conveying group on the base.

[0007] The unloading unit includes a mounting base installed on the left side of the base, a material guide plate is installed on the upper side of the mounting base through a driving group, an inverted trapezoidal material guide channel is opened on the upper side of the material guide plate, and the driving group is used to drive the left end of the material guide plate to tilt downward to realize automatic unloading.

[0008] The positioning unit includes a top plate fixedly mounted on the upper side of the mounting seat through a connecting rod, an inverted trapezoidal positioning plate installed on the lower side of the top plate through an adjustment group, the positioning plate is arranged in the material guide channel, and an auxiliary positioning group is also installed on the lower side of the top plate. The auxiliary positioning group first makes the left end of the oil pipe fit with the positioning plate and then fixes the oil pipe. The driving group is also used to drive the material guide plate and the auxiliary positioning group to cooperate to straighten the oil pipe left and right.

[0009] The straightening unit includes a pressurizing group installed on the base, and two arc-shaped clamping plates arranged symmetrically up and down are installed on the pressurizing group through a synchronization group. A linkage group is connected between the auxiliary positioning group and the base. The linkage group and the pressurizing group cooperate to straighten the oil pipe. A protection group for protecting and supporting the cut section of the oil pipe is installed on the base.

[0010] Preferably, the auxiliary positioning group includes a transmission frame installed on the lower side of the top plate through multiple telescopic rods, and an electric push rod is connected between the transmission frame and the top plate. A clamping plate is installed in the transmission frame for sliding left and right through a return spring, and a V-shaped groove with an opening facing downward is opened on the lower side of the clamping plate.

[0011] Preferably, a plurality of clamping plates evenly distributed left and right are arranged below the two inclined surfaces of the V-shaped groove, and the two clamping plates distributed front and back are arranged upwardly inclined on opposite sides, and the upper sides of the clamping plates are connected to the clamping plates by elastic top rods and sliding up and down, and the lower sides of the clamping plates are provided with clearance grooves corresponding to the positions of the clamping plates.

[0012] Preferably, an L-shaped toggle plate is fixedly installed on the right side of the upper end of the clamping plate, and an L-shaped matching plate is fixedly installed on the lower side of the top plate corresponding to the position of the toggle plate. The left side of the horizontal section of the matching plate is set as a trapezoidal structure that matches the horizontal section of the toggle plate.

[0013] Preferably, a through groove passing through the V-shaped groove is opened in the middle of the clamping plate, and the adjustment group includes an adjustment plate slidably installed left and right in the middle of the lower side of the top plate, an adjustment screw is threadedly connected to the adjustment plate, and the adjustment screw and the top plate are rotatably connected, and a connecting plate is fixedly installed at the lower end of the adjustment plate, and the lower end of the connecting plate passes through the through groove and is fixedly connected to the positioning plate.

[0014] Preferably, the pressurizing group includes a transmission plate that is slidably installed on the upper side of the base and located in front of the conveying group, a pressure spring is connected between the right side of the transmission plate and the base, the synchronization group includes two L-shaped rods that are symmetrically arranged up and down and slidably installed on the rear side of the transmission plate, a synchronization part is installed between the two L-shaped rods and the transmission plate, the opposite sides of the vertical sections of the two L-shaped rods are fixedly connected to their corresponding arc-shaped clamping plates, and a plurality of arc-shaped and evenly arranged rubber blocks are fixedly installed on the inner arc surface of the arc-shaped clamping plate.

[0015] Preferably, a columnar block is fixedly installed in the middle of the front side of the transmission plate, the linkage group includes a telescopic column fixedly installed on the upper side of the base and located in front of the transmission plate, an L-shaped transmission rod is fixedly installed between the left side of the telescopic end of the telescopic column and the transmission frame, and a push plate is fixedly installed on the position corresponding to the columnar block on the rear side of the telescopic end of the telescopic column, and the left end of the push plate is arranged to tilt upward.

[0016] Preferably, the driving group includes a U-shaped frame distributed above the mounting seat, the material guide plate is installed in the U-shaped frame by sliding left and right through an electric slider assembly, a give way block is installed at the left end of the lower side of the U-shaped frame for sliding left and right, the lower end of the give way block is hinged with an electric push rod 2, and the lower end of the electric push rod 2 is fixedly connected to the mounting seat, the lower right end of the U-shaped frame is hinged with a fixed rod, and the lower end of the fixed rod is fixedly connected to the mounting seat.

[0017] Preferably, a mounting hole is provided on the right side of the middle of the material guide plate, and a rotating shaft is rotatably installed on the left sides of the front and rear inner walls of the mounting hole, a material stripping plate is fixedly installed on the right side of the rotating shaft, a through hole is provided on the lower side of the U-shaped frame at a position corresponding to the mounting hole, and a top extension plate is fixedly installed on the upper side of the mounting seat, the upper side of the top extension plate passes through the through hole and is in contact with the lower end surface of the material stripping plate, and a plurality of rotating rods evenly arranged on the left and right are rotatably installed on the two inclined surfaces of the material guide channel.

[0018] Preferably, the protection group includes a protection plate distributed above the base and located between the cutting group and the guide plate. The protection plate is configured as an annular structure with an opening, and the lower end of the protection plate is fixedly connected to the base via a connecting rod.

[0019] The beneficial effects of the present invention are: 1. On the basis of the distance between the positioning plate and the cutting group being consistent with the preset cutting length of the metal hose-like oil pipe, the present invention uses the auxiliary positioning group to make the end of the metal hose-like oil pipe fit with the right side of the positioning plate, thereby making the distance between the end of the metal hose-like oil pipe and the cutting group consistent with the preset cutting length, thereby ensuring the cutting processing accuracy of the metal hose-like oil pipe, and the auxiliary positioning group can also cooperate with the guide plate to straighten the metal hose-like oil pipe left and right, avoiding the tilt or dislocation of the cutting port due to elastic deformation during cutting of the metal hose-like oil pipe, thereby improving the cutting processing accuracy of the metal hose-like oil pipe.

[0020] 2. The present invention clamps and fixes the metal hose-like oil pipe in the material guide channel through an auxiliary positioning group, and straightens the metal hose-like oil pipe by setting a straightening unit, so that the metal hose-like oil pipe is always in a straightened state, avoiding problems such as unevenness and tilting of the cutting port due to elastic deformation, ensuring the cutting quality of the metal hose-like oil pipe, and thus ensuring the sealing of the metal hose-like oil pipe in subsequent use.

[0021] 3. When the auxiliary positioning group makes the end of the metal hose-like oil pipe fit with the right side of the positioning plate, the present invention pulls the metal hose-like oil pipe to the left through the linkage group and the pressurizing group to ensure that the end of the metal hose-like oil pipe can fit smoothly and tightly with the right side of the positioning plate, thereby ensuring the cutting and processing accuracy of the metal hose-like oil pipe.

[0022] 4. The present invention protects the cutting position of the metal hose type oil pipe by setting a protection group to prevent the metal hose type oil pipe located on the left side of the cutting position from tilting forward under the action of the cutting force, further ensuring that the cutting end of the metal hose type oil pipe remains flat, thereby further improving the cutting processing quality of the metal hose type oil pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings and examples.

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0025] Figure 2 yes Figure 1 A structural diagram from another perspective.

[0026] Figure 3 It is a structural schematic diagram of the adjustment group, auxiliary positioning group, material guide plate and positioning plate of the present invention.

[0027] Figure 4 It is a schematic top view of the structure of the material guide plate, rotating shaft, material diverter plate and rotating rod of the present invention.

[0028] Figure 5 It is a structural schematic diagram of the positioning plate, return spring, connecting plate and abutting plate of the present invention.

[0029] Figure 6 It is a structural schematic diagram of the abutting plate, elastic extending rod and yielding groove of the present invention.

[0030] Figure 7 It is a schematic structural diagram of the cutting group and the conveying group of the present invention.

[0031] Figure 8 It is a structural schematic diagram of the arc-shaped clamping plate, columnar block, push plate and transmission rod of the present invention.

[0032] Reference numerals: 1. base; 11. cutting group; 12. conveying group; 13. protection group; 131. protection plate; 132. connecting rod; 2. unloading unit; 21. mounting seat; 211. top extension plate; 22. driving group; 221. U-shaped frame; 222. electric slider assembly; 223. clearance block; 224. second electric push rod; 225. fixing rod; 23. guide plate; 231. rotating shaft; 232. material stripping plate; 233. rotating rod; 3. positioning unit; 31. connecting rod; 32. top plate; 321. matching plate; 33. adjusting group; 331. adjusting plate; 332. adjusting screw; 333 , connecting plate; 34, positioning plate; 35, auxiliary positioning group; 351, telescopic rod; 352, transmission frame; 353, electric push rod 1; 354, clamping plate; 355, return spring; 356, clamping plate; 357, elastic top extension rod; 358, clearance groove; 359, toggle plate; 36, linkage group; 361, telescopic column; 362, transmission rod; 363, push plate; 4, straightening unit; 41, pressurizing group; 411, transmission plate; 412, pressurizing spring; 413, columnar block; 42, synchronization group; 421, L-shaped rod; 422, synchronization member; 43, arc clamping plate; 431, rubber block. DETAILED DESCRIPTION

[0033] The embodiments described below are exemplary and are only used to explain the present invention, and are not to be construed as limiting the present invention. If no specific techniques or conditions are specified in the embodiments, the techniques or conditions described in the literature in the art or the product instructions shall be followed.

[0034] See Figure 1 、 Figure 2 and Figure 7 A hydraulic valve pipe automatic cutting machine includes a base 1, on the upper side of the base 1 are installed a cutting group 11 and a conveying group 12 from left to right, a blanking unit 2 is installed on the left side of the base 1, a positioning unit 3 is installed on the blanking unit 2, and a straightening unit 4 is installed on the position of the base 1 corresponding to the conveying group 12.

[0035] It should be noted that both the cutting group 11 and the conveying group 12 adopt existing technologies. The conveying group 12 adopts multiple sets of guide wheels to intermittently convey metal hose-like oil pipes, and the cutting group 11 is used to cut the metal hose-like oil pipes.

[0036] The present invention is used for continuous cutting processing of metal hose-type oil pipes, and the present invention can accurately position the end of the metal hose-type oil pipe and straighten the metal hose-type oil pipe to ensure the cutting processing accuracy of the metal hose-type oil pipe. At the same time, the present invention can also straighten the metal hose-type oil pipe to prevent the metal hose-type oil pipe from being deformed at the cutting point during cutting, thereby preventing the oil pipe port after cutting from being uneven, tilted, and other problems, ensuring the cutting quality of the metal hose-type oil pipe, and thus improving the sealing of the metal hose-type oil pipe in subsequent use.

[0037] Specifically, first, manually pass the end of the metal hose-like oil pipe through the conveying group 12 and the cutting group 11 in sequence, and start the conveying group 12 to intermittently convey the metal hose-like oil pipe to the left for a distance, so that the end of the metal hose-like oil pipe passes through the cutting group 11 and moves to the blanking unit 2, and then start the positioning unit 3 to accurately position the end of the metal hose-like oil pipe, so that the distance between the end of the metal hose-like oil pipe and the cutting position of the cutting group 11 is consistent with the preset cutting length. At the same time, the positioning unit 3 can also cooperate with the blanking unit 2 to straighten the metal hose-like oil pipe, and then The positioning unit 3 and the unloading unit 2 clamp and fix the oil pipe, and at the same time the straightening unit 4 elastically stretches the metal hose oil pipe to the right, so that the metal hose oil pipe is in a straightened state. Finally, the cutting group 11 is controlled to cut the metal hose oil pipe to achieve precise cutting processing of the metal hose oil pipe. When the cutting processing of the metal hose oil pipe is completed, the unloading unit 2 is controlled to unload the cut metal hose oil pipe, and then the conveying group 12 is started to convey the metal hose oil pipe to the left, and the above steps are repeated to achieve continuous cutting processing of the metal hose oil pipe.

[0038] See Figure 1 、 Figure 2 and Figure 3 The unloading unit 2 includes a mounting base 21 installed on the left side of the base 1. A guide plate 23 is installed on the upper side of the mounting base 21 through a driving group 22. An inverted trapezoidal material guide channel is opened on the upper side of the guide plate 23. The driving group 22 is used to drive the left end of the guide plate 23 to tilt downward to realize the unloading of the oil pipe.

[0039] See Figure 1 、 Figure 2 and Figure 3 The positioning unit 3 includes a top plate 32 fixedly mounted on the upper side of the mounting seat 21 through a connecting rod 31, and an inverted trapezoidal positioning plate 34 is installed on the lower side of the top plate 32 through an adjustment group 33. The positioning plate 34 is arranged in the material guide channel, and an auxiliary positioning group 35 is also installed on the lower side of the top plate 32. The auxiliary positioning group 35 is used to make the left end of the oil pipe fit with the positioning plate 34 and then fix the metal hose oil pipe. The driving group 22 is also used to drive the guide plate 23 and the auxiliary positioning group 35 to cooperate to straighten the metal hose oil pipe left and right.

[0040] The unloading unit 2 is used to unload the cut metal hose-like oil pipe, and the positioning unit 3 is used to accurately position the end of the metal hose-like oil pipe. The positioning unit 3 is also used to cooperate with the unloading unit 2 to straighten the oil pipe left and right; specifically, first control the adjustment group 33 to adjust the left and right positions of the positioning plate 34, so that the distance between the positioning plate 34 and the cutting position of the cutting group 11 is consistent with the cutting length of the metal hose-like oil pipe. When the conveying group 12 is started to intermittently convey the metal hose-like oil pipe to the left for a distance, the end of the metal hose-like oil pipe moves into the guide channel of the guide plate 23, and moves along the guide channel close to the positioning plate 34.

[0041] Then the auxiliary positioning group 35 is controlled to make the end of the metal hose-like oil pipe fit with the right side of the positioning plate 34, so that the distance between the end of the metal hose-like oil pipe and the cutting position of the cutting group 11 is consistent with the preset cutting length, ensuring the precise cutting processing of the metal hose-like oil pipe. At the same time, by controlling the driving group 22 to drive the guide plate 23 to move back and forth left and right, the guide plate 23 and the auxiliary positioning group 35 cooperate to straighten the oil pipe left and right, further ensuring the precise cutting processing of the metal hose-like oil pipe, and then the auxiliary positioning group 35 fixes the metal hose-like oil pipe in the guide channel.

[0042] When the cutting process of the metal hose-like oil pipe is completed, the control drive group 22 drives the left end of the guide plate 23 to tilt downward, so that the cut metal hose-like oil pipe slides to the left along the guide channel to realize the unloading of the metal hose-like oil pipe. When the cut metal hose-like oil pipe is moved out of the guide channel, the control drive group 22 drives the guide plate 23 to return to a horizontal state, and repeats the above operation to realize continuous and precise cutting of the metal hose-like oil pipe.

[0043] See Figure 3 、 Figure 5 and Figure 6 The adjustment group 33 includes an adjustment plate 331 slidably installed in the middle of the lower side of the top plate 32, and an adjustment screw 332 is threadedly connected to the adjustment plate 331, and the adjustment screw 332 is rotatably connected to the top plate 32. A connecting plate 333 is fixedly installed at the lower end of the adjustment plate 331, and the lower end of the connecting plate 333 is fixedly connected to the positioning plate 34; wherein, an inclined reinforcing plate is fixedly installed between the adjustment plate 331 and the connecting plate 333 to increase the structural stability between the adjustment plate 331 and the connecting plate 333.

[0044] The adjustment group 33 is used to adjust the left and right positions of the positioning plate 34; specifically, by manually screwing the adjustment screw 332, the adjustment screw 332 drives the adjustment plate 331 to move left and right through the threaded cooperation, so that the adjustment plate 331 drives the positioning plate 34 to move left and right through the connecting plate 333, thereby realizing the adjustment of the left and right positions of the positioning plate 34.

[0045] See Figure 1 、 Figure 2 、 Figure 3 and Figure 5 The auxiliary positioning group 35 includes a transmission frame 352 installed on the lower side of the top plate 32 through multiple telescopic rods 351. The transmission frame 352 is located above the guide plate 23. An electric push rod 353 is also connected between the transmission frame 352 and the top plate 32. A clamping plate 354 is installed in the transmission frame 352 for sliding left and right through a return spring 355. A V-shaped groove is provided on the lower side of the clamping plate 354, and the V-shaped groove opens downward. A through groove penetrating the V-shaped groove is provided in the middle of the clamping plate 354, and the lower end of the connecting plate 333 passes through the through groove.

[0046] See Figure 5 and Figure 6 A plurality of clamping plates 356 evenly distributed left and right are arranged under the two inclined surfaces of the V-shaped groove, and the two clamping plates 356 distributed in the front and back are arranged upwardly inclined on the opposite sides. The upper side of the clamping plate 356 is connected to the clamping plate 354 for up and down sliding through the elastic pushing rod 357, and the lower side of the clamping plate 354 is provided with a clearance groove 358 at the position corresponding to the clamping plate 356; wherein, the elastic pushing rod 357 has a small elastic force, so that the clamping plate 356 will not cause the metal hose-like oil pipe to be squeezed and deformed under the action of the elastic pushing rod 357.

[0047] See Figure 3 and Figure 5 An L-shaped toggle plate 359 is fixedly installed on the right side of the upper end of the clamping plate 354, and an L-shaped matching plate 321 is fixedly installed on the lower side of the top plate 32 corresponding to the position of the toggle plate 359. The left side of the horizontal section of the matching plate 321 is set as a trapezoidal structure that matches the horizontal section of the toggle plate 359.

[0048] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 and Figure 6When the clamping plate 354 is pressed against the upper side of the metal hose oil pipe, the clamping plate 354 is pressed against the lower side of the metal hose oil pipe, and the clamping plate 354 is pressed against the upper side of the metal hose oil pipe. The horizontal section 59 moves to contact the inclined surface of the trapezoidal structure of the matching plate 321 and continues to move downward, so that the horizontal section of the toggle plate 359 and the inclined surface of the trapezoidal structure of the matching plate 321 cooperate to drive the clamping plate 354 to move to the left and compress the reset spring 355. The clamping plate 354 drives the clamping plate 356 to move to the left through the elastic top rod 357. Multiple clamping plates 356 push the metal hose oil pipe to move to the left, so that the end of the metal hose oil pipe and the right side of the positioning plate 34 fit tightly together, realizing precise positioning of the end of the metal hose oil pipe, making the distance between the end of the metal hose oil pipe and the cutting position of the cutting group 11 consistent with the preset cutting length, ensuring the cutting accuracy of the metal hose oil pipe.

[0049] When the end of the metal hose-like oil pipe is tightly fitted with the right side of the positioning plate 34, the clamping plate 356 is elastically pressed against the upper side of the metal hose-like oil pipe under the action of the elastic push rod 357, and the end of the metal hose-like oil pipe cannot move to the left due to the blocking action of the positioning plate 34. When the clamping plate 356 continues to move to the left, the clamping plate 356 can move to the left relative to the metal hose-like oil pipe.

[0050] When the clamping plate 354 moves downward so that the V-shaped groove is clamped on the upper side of the metal hose oil pipe, the clamping plate 356 moves into the clearance groove 358. The V-shaped groove of the clamping plate 354 clamps the metal hose oil pipe and fixes it in the material guide channel. When the cutting of the metal hose oil pipe is completed, the electric push rod 353 is controlled to drive the transmission frame 352 to move upward to the initial position. The clamping plate 354 moves to the initial position under the action of the rebound force of the reset spring 355, and the clamping plate 356 moves to the initial position under the action of the rebound force of the elastic push rod 357.

[0051] See Figure 1 、 Figure 2 、 Figure 3 and Figure 4The driving group 22 includes a U-shaped frame 221 distributed above the mounting seat 21. The material guide plate 23 is installed in the U-shaped frame 221 by sliding left and right through the electric slider assembly 222. A clearance block 223 is installed at the left end of the lower side of the U-shaped frame 221 for sliding left and right. The lower end of the clearance block 223 is hinged with an electric push rod 224, and the lower end of the electric push rod 224 is fixedly connected to the mounting seat 21. A fixed rod 225 is hinged at the right end of the lower side of the U-shaped frame 221, and the lower end of the fixed rod 225 is fixedly connected to the mounting seat 21. A plurality of rotating rods 233 evenly arranged left and right are rotatably installed on the two inclined surfaces of the material guide channel.

[0052] The driving group 22 is used to drive the guide plate 23 to unload the cut metal hose oil pipe. The driving group 22 is also used to drive the guide plate 23 and the holding plate 356 to cooperate to straighten the metal hose oil pipe left and right. Specifically, when the metal hose oil pipe moves in the guide channel, the friction between the metal hose oil pipe and the guide channel is reduced by rotating the rod 233, thereby increasing the smoothness of the movement of the metal hose oil pipe. When the holding plate 356 elastically presses against the upper side of the metal hose oil pipe, the electric slider assembly 222 is started to drive the guide plate 23 to move back and forth left and right, so that the guide plate 23 and the holding plate 356 cooperate to straighten the metal hose oil pipe left and right, ensuring the smoothness of the movement of the metal hose oil pipe. The cutting processing accuracy of the pipe-type oil pipe is improved. When the cutting processing of the metal hose-type oil pipe is completed, the electric push rod 224 is controlled to move downward through the clearance block 223. The clearance block 223 drives the left end of the U-shaped frame 221 to rotate downward with the hinge of the U-shaped frame 221 and the fixed rod 225 as the reference. The U-shaped frame 221 drives the left end of the guide plate 23 to be arranged downwardly, so that the cut metal hose-type oil pipe moves out to the left along the guide channel under the action of gravity, thereby realizing the unloading of the metal hose-type oil pipe. After unloading is completed, the electric push rod 224 is controlled to drive the guide plate 23 to rotate to a horizontal position (at this time, the electric push rod 224 is at the maximum extension point).

[0053] See Figure 3 and Figure 4 A mounting hole is provided on the right side of the middle part of the guide plate 23, and a rotating shaft 231 is installed on the left side of the front and rear inner walls of the mounting hole, and a torsion spring (not shown in the figure) is connected between the rotating shaft 231 and the guide plate 23. A material stripping plate 232 is fixedly installed on the right part of the rotating shaft 231, and a through hole is provided on the lower side of the U-shaped frame 221 at a position corresponding to the mounting hole. A top extension plate 211 is fixedly installed on the upper side of the mounting seat 21, and the upper side of the top extension plate 211 passes through the through hole and is in contact with the lower end surface of the material stripping plate 232.

[0054] When the U-shaped frame 221 drives the left end of the guide plate 23 to rotate downward, under the pushing action of the top extension plate 211, the right end of the material stripping plate 232 rotates upward with the axis of the rotating shaft 231 as the reference, so that the material stripping plate 232 increases the height of the right end of the cut metal hose oil pipe, thereby increasing the inclination of the metal hose oil pipe, so that the metal hose oil pipe can be moved out of the guide plate 23 faster under the action of gravity, increasing the feeding efficiency of the metal hose oil pipe, and then increasing the cutting efficiency of the metal hose oil pipe. When the guide plate 23 rotates to a horizontal position, the rotating shaft 231 drives the material stripping plate 232 to rotate to its initial position under the action of the torsion spring.

[0055] See Figure 1 、 Figure 2 、 Figure 7 and Figure 8 The straightening unit 4 includes a pressurizing group 41 installed on the base 1, and two arc-shaped clamping plates 43 arranged symmetrically in the upper and lower parts are installed on the pressurizing group 41 through the synchronization group 42. A linkage group 36 is connected between the transmission frame 352 and the base 1. The linkage group 36 is used to cooperate with the pressurizing group 41 to straighten the metal hose-like oil pipe. A protective group 13 is installed on the base 1 to ensure that the cutting part of the metal hose-like oil pipe is flat. A plurality of arc-shaped rubber blocks 431 with uniform arrangement are fixedly installed on the inner arc surface of the arc-shaped clamping plate 43.

[0056] The straightening unit 4 is used to straighten the metal hose type oil pipe; specifically, when the end of the metal hose type oil pipe moves to the corresponding position of the positioning plate 34, the control synchronization group 42 drives the two arc-shaped clamping plates 43 to clamp the metal hose type oil pipe, and the rubber block 431 ensures that the two arc-shaped clamping plates 43 stably clamp the metal hose type oil pipe. When the transmission frame 352 moves downward to make the clamping plate 354 clamp the metal hose type oil pipe in the material guide channel, the transmission frame 352 drives the linkage group 36 and the pressurizing group 41 to cooperate in straightening the metal hose type oil pipe. When the cutting group 11 When cutting the metal hose-like oil pipe, the metal hose-like oil pipe is always in a straight state to prevent the metal hose-like oil pipe from being deformed at the cutting point first, and then prevent the metal hose-like oil pipe end after cutting from being uneven, tilted, etc., to ensure the cutting quality of the metal hose-like oil pipe. At the same time, the protection group 13 can further ensure that the cutting point of the metal hose-like oil pipe is flat, and improve the cutting quality of the metal hose-like oil pipe. After the metal hose-like oil pipe cutting process is completed, the control synchronization group 42 drives the two arc-shaped clamping plates 43 to loosen the metal hose-like oil pipe.

[0057] See Figure 1 、 Figure 2 、 Figure 7 and Figure 8The pressurizing group 41 includes a transmission plate 411 that is slidably mounted on the upper side of the base 1 and located in front of the conveying group 12. A pressure spring 412 is connected between the right side of the transmission plate 411 and the base 1. The synchronization group 42 includes two L-shaped rods 421 that are symmetrically arranged up and down and slidably mounted on the rear side of the transmission plate 411. A synchronization member 422 is commonly installed between the two L-shaped rods 421 and the transmission plate 411. The opposite sides of the vertical sections of the two L-shaped rods 421 are fixedly connected to the corresponding arc-shaped clamping plates 43.

[0058] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 7 and Figure 8 A cylindrical block 413 is fixedly installed in the middle of the front side of the transmission plate 411. The linkage group 36 includes a telescopic column 361 fixedly installed on the upper side of the base 1 and located in front of the transmission plate 411. An L-shaped transmission rod 362 is fixedly installed between the left side of the telescopic end of the telescopic column 361 and the transmission frame 352. A push plate 363 is fixedly installed on the rear side of the telescopic end of the telescopic column 361 at the position corresponding to the cylindrical block 413, and the left end of the push plate 363 is arranged to tilt upward; reinforcing ribs for increasing its strength are fixedly installed at the corners of the transmission rod 362.

[0059] It should be noted that the synchronous part 422 in the present invention includes a synchronous screw, which is provided with two threaded sections arranged up and down and with opposite rotation directions. The two L-shaped rods 421 are connected to the corresponding threaded sections by threaded cooperation, and the synchronous screw and the transmission plate 411 are rotatably connected. The upper end of the synchronous screw rotates through the transmission plate 411 and is fixedly connected to the motor output shaft fixedly mounted on the transmission plate 411. By starting the motor to drive the synchronous screw to rotate, the synchronous screw drives the two L-shaped rods 421 to move synchronously inward and outward.

[0060] The pressurizing group 41 is used to cooperate with the linkage group 36 to straighten the metal hose and the oil pipe; specifically, when the end of the metal hose and the oil pipe moves to the corresponding position of the positioning plate 34, the control synchronizer 422 drives the two arc-shaped clamping plates 43 to clamp the metal hose and the oil pipe through the L-shaped rod 421. When the transmission frame 352 moves downward, the transmission frame 352 drives the telescopic end of the telescopic column 361 to move downward through the transmission rod 362, and the telescopic end of the telescopic column 361 drives the push plate 363 to move downward. The inclined lower side surface of the push plate 363 and the column block 413 cooperate to push the transmission plate 411 to move to the left. The transmission plate 411 drives the two arc-shaped clamping plates 43 to the left through the L-shaped rod 421, and in this process, the clamping plate 356 elastically presses against the upper side of the metal hose and the oil pipe in the guide channel and pushes the metal hose and the oil pipe. The tube-like oil pipe moves to the left, and under the combined action of the arc-shaped clamping plate 43 pulling to the left and the clamping plate 356 pushing to the left, the metal hose-like oil pipe smoothly fits tightly against the right side of the positioning plate 34. After the end of the metal hose-like oil pipe fits tightly against the right side of the positioning plate 34, the transmission frame 352 continues to move downward so that the clamping plate 354 clamps the metal hose-like oil pipe in the material guide channel. Although the two arc-shaped clamping plates 43 continue to pull the metal hose-like oil pipe to the left, the end of the metal hose-like oil pipe fits tightly against the right side of the positioning plate 34 and no longer moves. At this time, the metal hose-like oil pipe located between a group of guide wheels on the far left of the conveying group 12 and the two arc-shaped clamping plates 43 will bend slightly, and the metal hose-like oil pipe in the material guide channel will not bend under the clamping action of multiple clamping plates 356.

[0061] When the clamping plate 354 clamps the metal hose oil pipe in the material guide channel, the telescopic end of the telescopic column 361 drives the push plate 363 to move to the lower limit position, and the push plate 363 and the column block 413 are separated, so that the transmission plate 411 drives the two arc-shaped clamping plates 43 to return to the right under the action of the pressure spring 412, but it will not return to the initial position and the pressure spring 412 is still in a stretched state. Since the arc-shaped clamping plate 43 still fixes the metal hose oil pipe, the arc-shaped clamping plate 43 is always stationary relative to the metal hose oil pipe portion it clamps. In this state, under the action of the rebound force of the pressure spring 412, the arc-shaped clamping plate 43 first straightens the bent portion of the metal hose-like oil pipe between a group of guide wheels on the leftmost side of the conveying group 12 and the two arc-shaped clamping plates 43 to the right, and then straightens the metal hose-like oil pipe on the left side of a group of guide wheels on the leftmost side of the conveying group 12 to the right, so that the section of the metal hose-like oil pipe to be cut is in a straightened state. The straightened state is conducive to eliminating the bending stress of the metal hose-like oil pipe, avoiding tilt or dislocation of the port due to elastic deformation during cutting, and improving the cutting quality and accuracy of the metal hose-like oil pipe.

[0062] When the cutting process of the metal hose oil pipe is completed, the synchronous part 422 is controlled first to drive the two arc-shaped clamping plates 43 to loosen the metal hose oil pipe, and then the electric push rod 353 is controlled to drive the transmission frame 352 to move upward to the initial position, so that the transmission frame 352 drives the telescopic end of the telescopic column 361 to move upward to the initial position through the transmission rod 362. During this period, the column block 413 drives the transmission plate 411 to move to the right in cooperation with the inclined upper side of the push plate 363, and will not interfere with the reset movement of the telescopic end of the telescopic column 361. After the column block 413 and the push plate 363 are separated, they will reset themselves under the action of the rebound force of the pressure spring 412.

[0063] See Figure 7 The protection group 13 includes a protection plate 131 distributed above the base 1 and located between the cutting group 11 and the guide plate 23. The protection plate 131 is configured as an annular structure with an opening. The lower end of the protection plate 131 is fixedly connected to the base 1 through a connecting rod 132.

[0064] It should be noted that, see Figure 7 The cutting group 11 adopts the existing technology, which includes a bracket, a cutting knife and a driving member. The cutting knife is a circular member with a notch and a certain thickness. Its cutting execution end is set on the notch of the circular member. The bracket is fixedly mounted on the base 1, and the cutting knife and the bracket are rotatably connected. A circular hole is opened on the bracket at the position corresponding to the notch of the circular member. The circular hole is used to support and guide the metal hose type oil pipe. The driving member is fixedly mounted on the base 1 and connected to the cutting knife. When it is necessary to cut the metal hose type oil pipe, the cutting knife is driven to rotate with the connection between it and the bracket as the reference by starting the driving member, so that the cutting execution end on the notch of the cutting knife and the bracket cooperate to cut the metal hose type oil pipe.

[0065] The protection group 13 is used to ensure that the cutting part of the metal hose-like oil pipe is flat; specifically, when the conveying group 12 conveys the metal hose-like oil pipe to the left and the end of the metal hose-like oil pipe passes through the cutting group 11 and the protection plate 131, and moves along the protection plate 131 to the material guide channel of the guide plate 23, when the cutting group 11 cuts the metal hose-like oil pipe, the protection plate 131 can block the side of the metal hose-like oil pipe away from the cutting group 11, preventing the metal hose-like oil pipe on the left side of the cutting group 11 from bending forward under the action of the cutting force, which is beneficial to ensure that the cutting part of the metal hose-like oil pipe remains flat, further improving the cutting processing quality of the metal hose-like oil pipe.

[0066] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A hydraulic valve pipe automatic cutting machine, comprising a base, a cutting group and a conveying group are sequentially installed on the upper side of the base from left to right, characterized in that: A blanking unit is installed on the left side of the base, a positioning unit is installed on the blanking unit, and a straightening unit is installed on the position of the base corresponding to the conveying group; The unloading unit includes a mounting base installed on the left side of the base, a guide plate is installed on the upper side of the mounting base through a driving group, an inverted trapezoidal material guide channel is opened on the upper side of the guide plate, and the driving group is used to drive the left end of the guide plate to tilt downward to realize automatic unloading; The positioning unit includes a top plate fixedly mounted on the upper side of the mounting seat through a connecting rod, an inverted trapezoidal positioning plate mounted on the lower side of the top plate through an adjustment group, the positioning plate is arranged in the material guide channel, and an auxiliary positioning group is also mounted on the lower side of the top plate. The auxiliary positioning group first fits the left end of the oil pipe with the positioning plate and then fixes the oil pipe. The driving group is also used to drive the material guide plate and the auxiliary positioning group to cooperate to straighten the oil pipe left and right; The straightening unit includes a pressurizing group mounted on a base, on which two arc-shaped clamping plates arranged symmetrically in an upper and lower manner are mounted via a synchronization group. A linkage group is connected between the auxiliary positioning group and the base. The linkage group and the pressurizing group cooperate to straighten the oil pipe. A protection group for protecting and supporting the cut section of the oil pipe is mounted on the base. The auxiliary positioning group includes a transmission frame mounted on the lower side of the top plate through a plurality of telescopic rods, an electric push rod is further connected between the transmission frame and the top plate, a clamping plate is mounted in the transmission frame for sliding left and right via a return spring, and a V-shaped groove with an opening facing downward is opened on the lower side of the clamping plate; An L-shaped toggle plate is fixedly installed on the right side of the upper end of the clamping plate, and an L-shaped matching plate is fixedly installed on the lower side of the top plate corresponding to the position of the toggle plate. The left side of the horizontal section of the matching plate is set as a trapezoidal structure that matches the horizontal section of the toggle plate; There are multiple clamping plates evenly distributed on the left and right sides below the two inclined surfaces of the V-shaped groove. The two clamping plates distributed in the front and back are arranged upwardly inclined on the opposite sides. The upper sides of the clamping plates are connected to the clamping plates by elastic top rods and sliding up and down. The lower sides of the clamping plates are provided with clearance grooves corresponding to the positions of the clamping plates.

2. The automatic cutting machine for hydraulic valve pipe fittings according to claim 1, characterized in that: A through groove running through the V-shaped groove is provided in the middle of the clamping plate, and the adjustment group includes an adjustment plate slidably installed left and right in the middle of the lower side of the top plate, an adjustment screw is threadedly connected to the adjustment plate, and the adjustment screw and the top plate are rotatably connected, a connecting plate is fixedly installed at the lower end of the adjustment plate, and the lower end of the connecting plate passes through the through groove and is fixedly connected to the positioning plate.

3. The automatic cutting machine for hydraulic valve pipe fittings according to claim 1, characterized in that: The pressurizing group includes a transmission plate that is slidably mounted on the upper side of the base and located in front of the conveying group. A pressurizing spring is connected between the right side of the transmission plate and the base. The synchronization group includes two L-shaped rods that are symmetrically arranged up and down and slidably mounted on the rear side of the transmission plate. A synchronization part is installed between the two L-shaped rods and the transmission plate. The opposite sides of the vertical sections of the two L-shaped rods are fixedly connected to their corresponding arc-shaped clamping plates. A plurality of arc-shaped and evenly arranged rubber blocks are fixedly installed on the inner arc surface of the arc-shaped clamping plate.

4. The automatic cutting machine for hydraulic valve pipe fittings according to claim 3, characterized in that: A columnar block is fixedly installed in the middle of the front side of the transmission plate, and the linkage group includes a telescopic column fixedly installed on the upper side of the base and located in front of the transmission plate. An L-shaped transmission rod is fixedly installed between the left side of the telescopic end of the telescopic column and the transmission frame, and a push plate is fixedly installed at the position corresponding to the columnar block on the rear side of the telescopic end of the telescopic column, and the left end of the push plate is arranged to tilt upward.

5. The automatic cutting machine for hydraulic valve pipe fittings according to claim 1, characterized in that: The driving group includes a U-shaped frame distributed above the mounting seat, and the material guide plate is installed in the U-shaped frame by sliding left and right through an electric slider assembly. A give block is installed at the left end of the lower side of the U-shaped frame for sliding left and right. The lower end of the give block is hinged with an electric push rod 2, and the lower end of the electric push rod 2 is fixedly connected to the mounting seat. A fixed rod is hinged at the right end of the lower side of the U-shaped frame, and the lower end of the fixed rod is fixedly connected to the mounting seat.

6. The automatic cutting machine for hydraulic valve pipe fittings according to claim 5, characterized in that: A mounting hole is provided on the right side of the middle of the material guide plate, and a rotating shaft is installed on the left side of the front and rear inner walls of the mounting hole for rotation. A material stripping plate is fixedly installed on the right side of the rotating shaft. A through hole is provided on the lower side of the U-shaped frame at a position corresponding to the mounting hole, and a top extension plate is fixedly installed on the upper side of the mounting seat. The upper side of the top extension plate passes through the through hole and is in contact with the lower end surface of the material stripping plate. A plurality of rotating rods evenly arranged on the left and right are rotatably installed on the two inclined surfaces of the material guide channel.

7. The automatic cutting machine for hydraulic valve pipe fittings according to claim 1, characterized in that: The protection group includes a protection plate distributed above the base and located between the cutting group and the material guide plate. The protection plate is configured as an annular structure with an opening, and the lower end of the protection plate is fixedly connected to the base via a connecting rod.

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