Automatic pipe bending device

Abstract

The invention discloses an automatic pipe bending device, which relates to the technical field of machining, and comprises a pair of displacement mechanisms, a pipe bending mechanism and a clamping mechanism, the pipe bending mechanisms are correspondingly arranged on the displacement mechanisms on the two sides, the spatial positions of the pipe bending mechanisms are adjusted through the displacement mechanisms, each pipe bending mechanism comprises a first limiting block, a second limiting block and a pipe bending block, a hard pipe is limited through the first limiting block and the second limiting block, and then the hard pipe is bent through the pipe bending block; the clamping mechanism is fixedly arranged between the position changing mechanisms on the two sides and comprises a clamping block, and the hard pipe is clamped through the clamping block so as to be prevented from moving. The automatic pipe bending device has the advantages of being reasonable in scheme, ingenious in structure, low in labor intensity, high in machining efficiency and high in machining precision.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, and in particular to an automatic pipe bending device. Background Art

[0002] Automobile fuel pipes can be either hard pipes or soft pipes, depending on the application location and function of the pipes. Hard pipes are mainly used to connect fixed parts to ensure the stability and reliability of the oil circuit; soft pipes are mainly used to connect moving parts to accommodate movement and reduce stress. For example, in the fuel system, the connection from the fuel tank to the fuel pump usually uses a soft pipe, but the connection from the fuel pump to the fuel filter usually uses a hard pipe.

[0003] At present, there are usually two processing methods for bending automobile oil pipes: (1) one or two workers use multiple sets of bending tools to perform multiple and continuous manual bending from the middle to the two ends; (2) use a double-head pipe bending machine to perform multiple and continuous automatic bending from the two ends to the middle. However, the manual bending method greatly increases the labor intensity of workers and has low work efficiency. The automatic bending method is very likely to cause the oil pipe to bend during the bending process, resulting in low bending accuracy. Summary of the invention

[0004] The object of the present invention is to provide an automatic pipe bending device to solve the above-mentioned defects caused by the prior art.

[0005] An automatic pipe bending device comprises a displacement mechanism, a pipe bending mechanism and a clamping mechanism, wherein:

[0006] The displacement mechanism is provided with a pair and is distributed on the left and right sides;

[0007] The pipe bending mechanism is provided with a pair of displacement mechanisms correspondingly arranged on both sides, and the spatial position of the pipe bending mechanism is adjusted by the displacement mechanism. The pipe bending mechanism includes a limit block 1, a limit block 2 and a pipe bending block. The hard pipe is limited by the limit block 1 and the limit block 2, and then the hard pipe is bent by the pipe bending block.

[0008] The clamping mechanism is fixedly arranged between the displacement mechanisms on both sides, and the clamping mechanism comprises a clamping block, which clamps the hard pipe to prevent the hard pipe from moving.

[0009] Preferably, the displacement mechanism also includes a fixed frame, a pair of guide rails 1 are connected in parallel to the upper side of the fixed frame, a slider 1 is slidably connected to the guide rail 1, and a slide plate 1 is horizontally connected between the sliders 1 on the front and rear sides, a rack 1 is connected in parallel to the fixed frame between the two guide rails 1, a motor 1 is installed on the upper side of the slide plate 1, and a gear 1 is keyed at its output end, the gear 1 and the rack 1 are meshed with each other, a pair of guide rails 2 are connected in parallel to the upper side of the slide plate 1, a slider 2 is slidably connected to the guide rail 2, and the sliders on the left and right sides are connected to the sliders A skateboard two is horizontally connected between the two, a cylinder one is also fixed on the upper side of the skateboard one, and a connector one is connected to the end of its piston rod, and the connector one is connected to the edge of the skateboard two, a fixed tube is vertically welded on the upper side of the skateboard two, a pair of guide rails three are parallelly connected to the front side of the fixed tube, a slider three is slidably connected to the guide rails three, and a skateboard three is vertically connected between the sliders three on the left and right sides, a cylinder two is also vertically connected to the upper side of the skateboard three, and a movable plate is connected to the end of its piston rod, and the movable plate is vertically connected to the front side of the skateboard three.

[0010] Preferably, the pipe bending mechanism also includes a fixed shell, a fixed groove is provided on the upper portion of the fixed shell, a synchronous wheel 1 is rotatably connected to the inside of the fixed shell, and a movable groove is provided on the synchronous wheel 1, a motor 2 is installed on the outer side of the fixed shell, and the synchronous wheel 2 is keyed at its output end, a plurality of tensioning wheels are also distributed at intervals on the inner side of the fixed shell, and a synchronous belt is set between the synchronous wheel 1, the synchronous wheel 2 and all the tensioning wheels, a fixed plate is installed on the side of the synchronous wheel 1, the limit block 1 is arranged on the fixed plate, the limit block 2 is located next to the limit block 1 and installed on the side of the synchronous wheel 1, the side of the synchronous wheel 1 is also connected to a C-shaped fixed seat, a motor 3 is installed on the lower side of the fixed seat, and a movable seat is installed at its output end, a movable plate is vertically fixed to the side of the movable seat, and the pipe bending block is arranged on the movable plate.

[0011] Preferably, the clamping mechanism also includes a support tube, which is vertically installed between the left and right fixed frames, and a support bar is horizontally welded to the top of the support tube, the front end of the support bar is connected to a hinge seat, and a cylinder three is hinged on the hinge seat, the end of the piston rod of the cylinder three is connected to a connector two, and a clamping plate is hinged on the connector two, the inner end of the support bar is connected to a clamping bar, and the clamping bar and the clamping plate are hinged, and a finger cylinder one is also installed at the inner end of the support bar, and the clamping block is provided with a pair and is correspondingly installed on the two fingers of the finger cylinder one.

[0012] Preferably, the side of the fixed plate is hinged with a double-axis cylinder 2, and a pair of hinged strips 1 are hinged at the end of its piston rod, the other end of one hinged strip 1 is hinged to the fixed plate, and the other end of the other hinged strip 1 is hinged to a slide plate 4, the upper edge of the fixed plate is horizontally connected to a guide rail 4, and a slider 4 is slidably connected to the guide rail 4, the slider 4 and the slide plate 4 are screwed, and a limit block 1 is installed on the slide plate 4, the side of the movable plate is hinged with a double-axis cylinder 3, and a pair of hinged strips 2 are hinged at the end of its piston rod, the other end of one hinged strip 2 is hinged to the fixed plate, and the other end of the other hinged strip 2 is hinged to a slide plate 5, the upper edge of the movable plate is horizontally connected to a guide rail 5, and a slider 5 is slidably connected to the guide rail 5, the slider 5 and the slide plate 5 are screwed, the side of the slide plate 5 is connected to a connecting plate, and the bending pipe block is rotatably connected to the connecting plate.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] In the bending process of the present invention, the second motor can drive the limit block 1 on the fixed plate, the limit block 2 on the synchronous wheel 2 and the bending block on the movable plate to rotate synchronously after precise belt transmission, so as to accurately change the bending direction of the hard tube, and at the same time ensure that the bent part is supported on the upper side of the fixed frame under the drive of the bending mechanism, so as to reduce the influence of the bending moment generated by the deadweight of the bent part on the unbent part. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the overall three-dimensional structure of the displacement mechanism.

[0017] Figure 3 It is a structural schematic diagram of the partial first-person perspective of the displacement mechanism.

[0018] Figure 4 It is a structural schematic diagram of the local second perspective of the displacement mechanism.

[0019] Figure 5 It is a schematic diagram of the structure of the overall bending mechanism from the first perspective.

[0020] Figure 6 It is a schematic diagram of the structure of the overall bending mechanism from the second perspective.

[0021] Figure 7 It is a schematic diagram of the local three-dimensional structure of the tube bending mechanism.

[0022] Figure 8 It is a schematic diagram of the overall three-dimensional structure of the clamping mechanism.

[0023] in:

[0024] 10-displacement mechanism; 101-fixed frame; 102-guide rail 1; 103-slider 1; 104-slide plate 1; 105-rack 1; 106-motor 1; 107-gear 1; 108-guide rail 2; 109-slider 2; 110-slide plate 2; 111-cylinder 1; 112-connector 1; 113-fixed pipe; 114-guide rail 3; 115-slider 3; 116-slide plate 3; 117-cylinder 2; 118-movable plate;

[0025] 20-bending mechanism; 201-fixed shell; 201a-fixed slot; 202-synchronous wheel one; 202a-movable slot; 203-motor two; 204-synchronous wheel two; 205-tensioning wheel; 206-synchronous belt; 207-fixed plate; 208-double-axis cylinder two; 209-hinge bar one; 210-guide rail four; 211-slider four; 212-slide plate four; 213-limit block one; 214-limit block two; 215-fixed seat; 216-motor three; 217-movable seat; 218-movable plate; 219-double-axis cylinder three; 220-hinge bar two; 221-guide rail five; 222-slider five; 223-slide plate five; 224-connecting plate; 225-bending block;

[0026] 30-clamping mechanism; 301-support tube; 302-support bar; 303-hinge seat; 304-cylinder three; 305-connector two; 306-clamping plate; 307-clamping bar; 308-finger cylinder one; 309-clamping block. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0028] like Figures 1 to 8 As shown, an automatic pipe bending device includes a displacement mechanism 10, a pipe bending mechanism 20 and a clamping mechanism 30, wherein:

[0029] The displacement mechanism 10 is provided in a pair and is distributed on the left and right sides;

[0030] The pipe bending mechanism 20 is provided with a pair of displacement mechanisms 10 correspondingly arranged on both sides, and the spatial position of the pipe bending mechanism 20 is adjusted by the displacement mechanism 10. The pipe bending mechanism 20 includes a limit block 1 213, a limit block 214 and a pipe bending block 225. The limit block 1 213 and the limit block 214 limit the hard pipe, and then the pipe bending block 225 bends the hard pipe;

[0031] The clamping mechanism 30 is fixedly disposed between the displacement mechanisms 10 on both sides, and the clamping mechanism 30 includes a clamping block 309 , which is used to clamp the hard pipe to prevent the hard pipe from moving.

[0032] In this embodiment, the displacement mechanism 10 also includes a fixed frame 101, a pair of guide rails 102 are connected in parallel to the upper side of the fixed frame 101, a slider 103 is slidably connected to the guide rail 102, and a slide plate 104 is horizontally connected between the sliders 103 on the front and rear sides, a rack 105 is connected in parallel between the two guide rails 102 of the fixed frame 101, a motor 106 is installed on the upper side of the slide plate 104, and a gear 107 is keyed to its output end, the gear 107 and the rack 105 are meshed with each other, a pair of guide rails 108 are connected in parallel to the upper side of the slide plate 104, a slider 109 is slidably connected to the guide rail 108, and a motor 106 is installed on the upper side of the slide plate 104, and a gear 107 is keyed to the output end of the motor 106, and the gear 107 and the rack 105 are meshed with each other, and a pair of guide rails 108 are connected in parallel to the upper side of the slide plate 104, a slider 109 is slidably connected to the guide rail 108, and a slider 109 is connected to the left and right slides. A slide plate 110 is horizontally connected between the blocks 109, a cylinder 111 is fixed on the upper side of the slide plate 104, and a connector 112 is connected to the end of its piston rod, and the connector 112 is connected to the edge of the slide plate 110, a fixed pipe 113 is vertically welded on the upper side of the slide plate 110, a pair of guide rails 114 are parallelly connected to the front side of the fixed pipe 113, a slider 115 is slidably connected to the guide rails 114, and a slide plate 116 is vertically connected between the sliders 115 on the left and right sides, a cylinder 117 is vertically connected to the upper side of the slide plate 116, and a moving plate 118 is connected to the end of its piston rod, and the moving plate 118 is vertically connected to the front side of the slide plate 116. The motor 106 can drive the pipe bending mechanism 20 to move left and right after gear transmission; the cylinder 111 can drive the pipe bending mechanism 20 to move forward and backward; the cylinder 2 117 can drive the pipe bending mechanism 20 to move up and down.

[0033] In this embodiment, the bending mechanism 20 also includes a fixed shell 201, a fixed groove 201a is provided on the upper part of the fixed shell 201, a synchronous wheel 202 is rotatably connected inside the fixed shell 201, and a movable groove 202a is provided on the synchronous wheel 202, a motor 203 is installed on the outer side of the fixed shell 201, and a synchronous wheel 204 is keyed to its output end, and a plurality of tensioning wheels 205 are also distributed at intervals on the inner side of the fixed shell 201, and a synchronous wheel 202, a synchronous wheel 204 and all the tensioning wheels 205 are set between them. Belt 206, a fixed plate 207 is installed on the side of the synchronous wheel 202, the limit block 213 is arranged on the fixed plate 207, the limit block 214 is located beside the limit block 213 and installed on the side of the synchronous wheel 202, the side of the synchronous wheel 202 is also connected to a C-shaped fixed seat 215, a motor 3 216 is installed on the lower side of the fixed seat 215, and a movable seat 217 is installed on the output end thereof, a movable plate 218 is vertically fixed to the side of the movable seat 217, and the bending pipe block 225 is arranged on the movable plate 218. After precise belt transmission, motor 203 can drive the limit block 1 213 on the fixed plate 207, the limit block 214 on the synchronous wheel 204 and the bending block 225 on the movable plate 218 to rotate synchronously, so as to accurately change the bending direction of the hard tube, and at the same time ensure that the bent part is supported on the upper side of the fixed frame 101 under the drive of the conversion mechanism 10, so as to reduce the influence of the bending moment generated by the dead weight of the bent part on the unbent part; the motor 3 216 drives the bending block 225 on the movable plate 218 to deflect, and bends the hard tube jointly restricted by the limit block 1 213 and the limit block 2 214.

[0034] In this embodiment, the clamping mechanism 30 also includes a support tube 301, which is vertically installed between the left and right fixed frames 101. A support bar 302 is horizontally welded to the top of the support tube 301. The front end of the support bar 302 is connected to a hinge seat 303, and a cylinder three 304 is hinged on the hinge seat 303. The end of the piston rod of the cylinder three 304 is connected to a connector two 305, and a clamping plate 306 is hinged on the connector two 305. The inner end of the support bar 302 is connected to a clamping bar 307, and the clamping bar 307 is hinged to the clamping plate 306. The inner end of the support bar 302 is also installed with a finger cylinder one 308, and the clamping block 309 is provided with a pair and correspondingly installed on the two fingers of the finger cylinder one 308. The cylinder three 304 can drive the clamping plate 306 to squeeze the clamping strip 307 and clamp the hard tube. At the same time, the finger cylinder one 308 cooperates with the clamping block 309 to clamp the hard tube to prevent the hard tube from moving when bending.

[0035] In this embodiment, the side of the fixed plate 207 is hinged with a double-axis cylinder 208, and a pair of hinged bars 209 are hinged at the end of the piston rod thereof, the other end of one hinged bar 209 is hinged to the fixed plate 207, and the other end of the other hinged bar 209 is hinged to a slide plate 212, the upper edge of the fixed plate 207 is horizontally connected to a guide rail 210, and a slider 211 is slidably connected to the guide rail 210, the slider 211 is screwed to the slide plate 212, and a limit block 213 is installed on the slide plate 212, the movable plate 21 The side of the movable plate 218 is hinged with a double-axis cylinder 3 219, and a pair of hinged bars 2 220 are hinged at the end of the piston rod. The other end of one hinged bar 220 is hinged to the fixed plate 207, and the other end of the other hinged bar 220 is hinged to a slide plate 5 223. The upper edge of the movable plate 218 is horizontally connected with a guide rail 5 221, and a slider 5 222 is slidably connected to the guide rail 5 221. The slider 5 222 is screwed to the slide plate 5 223. The side of the slide plate 5 223 is connected with a connecting plate 224, and the bending block 225 is rotatably connected to the connecting plate 224. The double-axis cylinder 208 can drive the limit block 1 213 to squeeze the limit block 214 and define the bending position of the hard pipe, and the double-axis cylinder 3 219 can drive the bending block 225 to bend the hard pipe at this position.

[0036] The working principle of this automatic pipe bending device:

[0037] Step 1: Place the hard tube into the movable grooves 202a on the left and right sides;

[0038] Step 2: The cylinder 3 304 drives the clamping plate 306 to squeeze the clamping strip 307 and clamp the hard tube. At the same time, the finger cylinder 1 308 cooperates with the clamping block 309 to clamp the hard tube to prevent the hard tube from moving during bending.

[0039] Step 3: The double-axis cylinder 208 drives the limit block 1 213 to squeeze the limit block 214 and define the bending position of the hard tube, and then the double-axis cylinder 3 219 drives the bending block 225 to bend the hard tube at this position. During the bending process, the motor 203 drives the limit block 1 213 on the fixed plate 207, the limit block 214 on the synchronous wheel 204 and the bending block 225 on the movable plate 218 to rotate synchronously after precise belt transmission, so as to accurately change the bending direction of the hard tube;

[0040] Step 4: After the bending is completed, the clamped hard tube is automatically removed from the movable grooves 202a on the left and right sides by the robot arm 407.

[0041] Therefore, the embodiments disclosed above are only illustrative in all aspects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. An automatic pipe bending device, characterized in that: It comprises a displacement mechanism (10), a pipe bending mechanism (20) and a clamping mechanism (30), wherein: The displacement mechanism (10) is provided in a pair and is distributed on the left and right sides; The pipe bending mechanism (20) is provided with a pair of displacement mechanisms (10) correspondingly arranged on both sides, and the spatial position of the pipe bending mechanism (20) is adjusted by the displacement mechanism (10). The pipe bending mechanism (20) comprises a first limiting block (213), a second limiting block (214) and a pipe bending block (225). The first limiting block (213) and the second limiting block (214) are used to limit the hard pipe, and the pipe bending block (225) is used to bend the hard pipe. The clamping mechanism (30) is fixedly arranged between the displacement mechanisms (10) on both sides, and the clamping mechanism (30) comprises a clamping block (309), and the clamping block (309) is used to clamp the hard pipe to prevent the hard pipe from moving.

2. An automatic pipe bending device according to claim 1, characterized in that: The displacement mechanism (10) further comprises a fixed frame (101), wherein a pair of guide rails (102) are connected in parallel to the upper side of the fixed frame (101), a slider (103) is slidably connected to the guide rails (102), and a slide plate (104) is horizontally connected between the sliders (103) at the front and rear sides, and a rack (105) is connected in parallel to the fixed frame (101) between the two guide rails (102), a motor (106) is installed on the upper side of the slide plate (104), and a gear (107) is keyed to the output end thereof, and the gear (107) and the rack (105) are meshed with each other, and a pair of guide rails (108) are connected in parallel to the upper side of the slide plate (104), a slider (109) is slidably connected to the guide rails (108), and a slider (109) is connected to the sliders (103) at the left and right sides. A slide plate 2 (110) is horizontally connected between the two slide plates 109, a cylinder 1 (111) is also fixed on the upper side of the slide plate 1 (104), and a connector 1 (112) is connected to the end of its piston rod, and the connector 1 (112) is connected to the edge of the slide plate 2 (110), a fixed tube (113) is vertically welded to the upper side of the slide plate 2 (110), a pair of guide rails 3 (114) is parallelly connected to the front side of the fixed tube (113), a slider 3 (115) is slidably connected to the guide rails 3 (114), and a slide plate 3 (116) is vertically connected between the sliders 3 (115) on the left and right sides, a cylinder 2 (117) is also vertically connected to the upper side of the slide plate 3 (116), and a movable plate (118) is connected to the end of its piston rod, and the movable plate (118) is vertically connected to the front side of the slide plate 3 (116).

3. An automatic pipe bending device according to claim 2, characterized in that: The pipe bending mechanism (20) further comprises a fixed shell (201), the upper part of which is provided with a fixed groove (201a), the interior of the fixed shell (201) is rotatably connected to a synchronous wheel 1 (202), and a movable groove (202a) is provided on the synchronous wheel 1 (202), a motor 2 (203) is installed on the outer side of the fixed shell (201), and a synchronous wheel 2 (204) is keyed to the output end thereof, a plurality of tension wheels (205) are also spaced apart on the inner side of the fixed shell (201), and a synchronous belt (206) is set between the synchronous wheel 1 (202), the synchronous wheel 2 (204) and all the tension wheels (205). ), a fixed plate (207) is installed on the side of the synchronous wheel (202), the limit block (213) is arranged on the fixed plate (207), the limit block (214) is located beside the limit block (213) and is installed on the side of the synchronous wheel (202), the side of the synchronous wheel (202) is also connected to a C-shaped fixed seat (215), the lower side of the fixed seat (215) is installed with a motor (216), and a movable seat (217) is installed at its output end, the side of the movable seat (217) is vertically fixed with a movable plate (218), and the bending block (225) is arranged on the movable plate (218).

4. The automatic pipe bending device according to claim 2, characterized in that: The clamping mechanism (30) further comprises a support tube (301), the support tube (301) being vertically mounted between the left and right fixed frames (101), a support bar (302) being horizontally welded to the top of the support tube (301), a front end of the support bar (302) being connected to a hinge seat (303), and a cylinder three (304) being hinged on the hinge seat (303), and a connecting rod (304) being connected to the end of the piston rod of the cylinder three (304). Joint 2 (305), and a clamping plate (306) is hinged on the joint 2 (305), the inner end of the support bar (302) is connected to a clamping bar (307), and the clamping bar (307) and the clamping plate (306) are hinged, and the inner end of the support bar (302) is also installed with a finger cylinder 1 (308), and the clamping block (309) is provided with a pair and is correspondingly installed on the two fingers of the finger cylinder 1 (308).

5. The automatic pipe bending device according to claim 3, characterized in that: The side of the fixed plate (207) is hinged with a double-axis cylinder 2 (208), and a pair of hinged bars 1 (209) are hinged at the end of the piston rod thereof, the other end of one hinged bar 1 (209) is hinged to the fixed plate (207), and the other end of the other hinged bar 1 (209) is hinged to a slide plate 4 (212), the upper edge of the fixed plate (207) is horizontally connected to a guide rail 4 (210), and a slider 4 (211) is slidably connected to the guide rail 4 (210), the slider 4 (211) is screwed to the slide plate 4 (212), and a limit block 1 (213) is installed on the slide plate 4 (212), and the side of the movable plate (218) is connected to the fixed plate (207). A double-axis cylinder three (219) is hinged on the surface, and a pair of hinged bars two (220) are hinged at the end of the piston rod thereof, the other end of one hinged bar two (220) is hinged to the fixed plate (207), and the other end of the other hinged bar two (220) is hinged to a slide plate five (223), the upper edge of the movable plate (218) is horizontally connected to a guide rail five (221), and a slider five (222) is slidably connected to the guide rail five (221), the slider five (222) is screwed to the slide plate five (223), the side of the slide plate five (223) is connected to a connecting plate (224), and the bending pipe block (225) is rotatably connected to the connecting plate (224).

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