A stamping and bending machine for automobile pipe support frame and use method thereof

Abstract

The present invention discloses a stamping and bending machine for automobile pipe support frames and a method of using the same, which relates to the technical field of bending machines and solves the problems that the existing stamping and bending machines are not convenient for removing the stamped parts during stamping, resulting in low production efficiency and not convenient for automatically adjusting the bending angle. A stamping and bending machine for automobile pipe support frames and a method of using the same, comprising an angle adjustment mechanism, one end of which is slidably connected to a support positioning mechanism, the support positioning mechanism comprising a main support frame, a side fixed support plate, a first mounting plate, a second mounting plate, a bending wheel, a vertical guide column, a connecting sleeve and a connecting limit shaft. The present invention positions the bending parts, thereby facilitating the bending operation, avoiding the displacement of the bending parts during the stamping and bending process, and can accurately adjust the angle of the bending part of the bending part, facilitating automatic material removal and avoiding danger caused by manual operation.

Description

Technical Field

[0001] The invention relates to the technical field of bending machines, in particular to a stamping bending machine for an automobile pipeline support frame and a use method thereof. Background Art

[0002] With the rapid development of social economy, the output of automobiles is getting higher and higher, and people's demand for automobiles is also increasing. The pipes in auto parts need supporting structures to be fixed and supported. The supporting structures can be quickly stamped and formed by stamping and bending machines. Stamping and bending machines are tools used to form and process sheet materials. They mainly realize the processing of the shape of objects by changing the physical state. Under the action of the bending machine pressure, the blanks are made into specific shapes and sizes.

[0003] However, the existing stamping and bending machines are not convenient for removing the stamped parts during stamping, resulting in low production efficiency, and are not convenient for automatically adjusting the bending angle; therefore, they do not meet the existing needs. In this regard, we propose a stamping and bending machine for an automobile pipe support frame and a method for using the same. Summary of the invention

[0004] The object of the present invention is to provide a stamping and bending machine for an automobile pipe support frame and a method of using the same, so as to solve the problems mentioned in the above background technology that the existing stamping and bending machines are not convenient for removing the stamped parts during stamping, resulting in low production efficiency and being inconvenient for automatically adjusting the bending angle.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a stamping and bending machine for automobile pipe support frame, comprising an angle adjustment mechanism, one end of the angle adjustment mechanism is slidably connected with a support positioning mechanism, the support positioning mechanism comprises a main support frame, a side fixed support plate, a first mounting plate, a second mounting plate, a bending wheel, a vertical guide column, a connecting sleeve and a connecting limit shaft, the upper end surface of the main support frame is fixedly installed with two side fixed support plates, the inner side of the middle part of the side fixed support plate is fixedly installed with a vertical guide column, one of the two side fixed support plates A connecting limit shaft is fixedly installed on the inner side of each end, and both ends of the connecting limit shaft are connected to the side fixed support plate through a connecting sleeve, and two first mounting plates are fixedly installed on the inner side of the side fixed support plate, and a second mounting plate is installed at one end of the first mounting plate, and bending wheels are installed on the inner sides of the upper ends of one of the first mounting plates and the second mounting plate, and an end support mechanism is fixedly installed at one end of one of the side fixed support plates, an automatic stripping mechanism is fixedly installed on the lower end surface of the main support frame, and a stamping mechanism is fixedly installed on the upper end surface of the support positioning mechanism.

[0006] Preferably, the stamping mechanism includes a cylinder support frame, a stamping cylinder, a stamping bending head and a heating plate, the stamping cylinder is fixedly installed on the upper end surface of the cylinder support frame, the stamping bending head is fixedly installed on the bottom end of the stamping cylinder, and a heating plate is arranged on the inner side of the stamping bending head.

[0007] Preferably, the angle adjustment mechanism includes an angle adjustment cylinder, a guide connecting frame, a connecting support frame, a positioning block, a movable support plate and a first support spring, one end of the angle adjustment cylinder is fixedly mounted with the guide connecting frame, the upper end surface of the guide connecting frame is fixedly mounted with the connecting support frame, a positioning block is arranged on the inner side of the connecting support frame, a movable support plate is installed above the positioning block, and the positioning block and the movable support plate are connected by two first support springs.

[0008] Preferably, the end support mechanism includes a fixed support frame, an axial end connecting plate and a transmission support shaft, and two transmission support shafts are installed on the upper end of the fixed support frame, and an axial end connecting plate is installed on the outer side of both ends of one of the transmission support shafts.

[0009] Preferably, the automatic stripping mechanism includes a connecting sleeve, a fixed sleeve, a stripping frame and a second supporting spring, two fixed sleeves are fixedly installed on the inner side of the connecting sleeve, one of the fixed sleeves is slidably connected to the stripping frame on the inner side of the upper end, and a second supporting spring is arranged on the outer side of the upper end of the fixed sleeve.

[0010] Preferably, a waist-shaped hole is provided on one side of the second mounting plate, and both ends of one of the bending wheels extend to the inner side of the waist-shaped hole, and both ends of the connecting limit shaft respectively pass through the second mounting plate and the first mounting plate and are connected and fixed to the side fixed support plate through a connecting sleeve, and a bending groove is provided on the outer side of the middle part of the bending wheel.

[0011] Preferably, the fixing sleeve is fixed to the inner side of the bottom end of the connecting sleeve by a threaded connection, the upper end of the stripping frame is connected to the bottom end of the connecting sleeve by two second supporting springs, a positioning hole is provided on the inner side of the fixing sleeve, and the bottom end of the stripping frame extends to the inner side of the positioning hole.

[0012] Compared with the prior art, the punching and bending machine of the present invention has the following beneficial effects:

[0013] The present invention positions the bending part, thereby facilitating the bending operation and avoiding the bending part from shifting during the stamping and bending process. The present invention can also accurately adjust the angle of the bending part to improve the bending accuracy. After the bending is completed, the bending part is automatically pushed out to facilitate automatic material removal and avoid danger caused by manual operation.

[0014] A method for using a stamping and bending machine, the method for using the stamping and bending machine comprising the following steps:

[0015] (A) Check whether the functions of each part are intact, turn on the power, a waist-shaped hole is set on one side of the second mounting plate, and both ends of one bending wheel extend to the inner side of the waist-shaped hole. The height of the transmission support shaft is adjusted according to the height of the two bending wheels. Specifically, two waist-shaped grooves are set on one side of the fixed support frame, and both ends of the transmission support shaft are set on the inner side of the waist-shaped grooves, and both ends of the transmission support shaft are connected and fixed to the fixed support frame through the shaft end connecting plate. The height of the transmission support shaft can be changed by adjusting the height of the shaft end connecting plate;

[0016] (B) The parts to be stamped and bent are placed on the upper end surfaces of the two bending wheels through the guidance of the transmission support shaft, and the stamping cylinder is started, so that the stamping cylinder drives the stamping bending head downward to perform stamping and bending operations under the support of the cylinder support frame. A bending groove is provided on the outer side of the middle part of the bending wheel to facilitate positioning of the bent parts to avoid deviation. The bottom end of the vertical guide column penetrates the bottom end of the cylinder support frame and is fixed on the inner side of the side fixed support plate, so that the vertical guide column plays a guiding role when the bottom end of the stamping cylinder moves;

[0017] (C) During the bending process, the top of the stripping frame contacts the bending part, so that the bottom of the stripping frame slides inside the fixed sleeve, the second supporting spring contracts, and the electric heating resistance wire provided inside the heating plate is connected to the power supply according to the material of the bending part, thereby heating the plastic part to facilitate bending;

[0018] (D) One of the bending wheels is adjusted according to the angle of the bending part of the bending piece. Specifically, the angle adjustment cylinder is started so that the angle adjustment cylinder drives the guide connecting frame to move under the support of the main support frame. One end of the guide connecting frame is plugged into the inner side of the side fixed support plate to facilitate the stability of the guide connecting frame. The two ends of one of the bending wheels are fixed to one end of the connecting support frame by screws, so that the bending wheel can be driven to slide on the inner side of the upper end of the second mounting plate, so that the bending wheel can adjust the angle of the bending piece, which is convenient for use. The positioning block is connected to the movable support plate by two first support springs to facilitate the support of the bending piece.

[0019] (E) After the bending is completed, the stamping bending head is reset. At this time, the upper end of the stripping frame pushes the bent part upward under the support of the second support spring, and then it can be separated from the two bending wheels, which facilitates the automatic stripping operation and reduces the risks brought by manual operation.

[0020] Preferably, the movable support plate is at the same height as the transmission support shaft, the outer sides of both ends of the transmission support shaft are connected with shaft end connecting plates through positioning pins, and the shaft end connecting plates are connected to the upper end of the fixed support frame through screws.

[0021] Preferably, a positioning hole is provided at one end of the side fixed support plate, one end of the guide connecting frame extends to the inner side of the positioning hole, and the guide connecting frame is fixed to one end of the angle adjustment cylinder by screws.

[0022] Compared with the prior art, the method for using the stamping and bending machine of the present invention has the following beneficial effects:

[0023] The present invention automatically positions the bending parts to facilitate stamping and bending, can heat the bending parts according to the different materials of the bending parts, is convenient for protecting the bending parts from tearing, and is convenient for taking out the bending parts. The invention is safe to use and has high stamping and bending efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 A top view of the present invention as a whole;

[0026] Figure 3 It is a partial structural schematic diagram of the angle adjustment mechanism of the present invention;

[0027] Figure 4 It is a schematic diagram of a partial cross-sectional structure of the connection limit shaft of the present invention;

[0028] Figure 5 It is a partial cross-sectional structural schematic diagram of the automatic material stripping mechanism of the present invention;

[0029] Figure 6 It is a schematic diagram of the partial cross-sectional structure of the stamping and bending head of the present invention.

[0030] In the figure: 1. Support and positioning mechanism; 101. Main support frame; 102. Side fixed support plate; 103. First mounting plate; 104. Second mounting plate; 105. Bending wheel; 106. Vertical guide column; 107. Connecting sleeve; 108. Connecting limit shaft; 2. Stamping mechanism; 201. Cylinder support frame; 202. Stamping cylinder; 203. Stamping bending head; 204. Heating plate; 3. Angle adjustment mechanism; 301. Angle adjustment cylinder; 302. Guide connecting frame; 303. Connecting support frame; 304. Positioning block; 305. Movable support plate; 306. First supporting spring; 4. End supporting mechanism; 401. Fixed support frame; 402. Shaft end connecting plate; 403. Transmission support shaft; 5. Automatic stripping mechanism; 501. Connecting sleeve; 502. Fixed sleeve; 503. Stripping frame; 504. Second supporting spring. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] The stamping cylinder 202 (model SJYG70-1000) and the angle adjustment cylinder 301 (model HOB80X250-100) mentioned in the present invention can be purchased from the market or obtained through private customization.

[0033] See also Figures 1 to 6 , an embodiment of the present invention: a stamping and bending machine for automobile pipe support frame, comprising an angle adjustment mechanism 3, one end of the angle adjustment mechanism 3 is slidably connected with a support positioning mechanism 1, the support positioning mechanism 1 comprises a main support frame 101, a side fixed support plate 102, a first mounting plate 103, a second mounting plate 104, a bending wheel 105, a vertical guide column 106, a connecting sleeve 107 and a connecting limit shaft 108, the upper end surface of the main support frame 101 is fixedly installed with two side fixed support plates 102, the inner side of the middle part of the side fixed support plate 102 is fixedly installed with a vertical guide column 106, the inner side of both ends of one of the side fixed support plates 102 is fixedly installed with a connecting limit shaft 108, the two ends of the connecting limit shaft 108 are connected to the side fixed support plate 102 by a connecting sleeve 107, and the inner side of the side fixed support plate 102 is fixedly installed with two A first mounting plate 103 is provided with a second mounting plate 104 at one end of the first mounting plate 103, a bending wheel 105 is provided on the inner side of the upper end of each of the first mounting plate 103 and the second mounting plate 104, a bending groove is provided on the outer side of the middle part of the bending wheel 105, so as to facilitate the positioning of the bending part and avoid the displacement, an end support mechanism 4 is fixedly provided on one end of one of the side fixed support plates 102, an automatic stripping mechanism 5 is fixedly provided on the lower end surface of the main support frame 101, and the automatic stripping mechanism 5 facilitates the automatic stripping of the bending part, a stamping mechanism 2 is fixedly provided on the upper end surface of the support positioning mechanism 1, and the bending part is positioned as a whole, so as to facilitate the bending operation and avoid the displacement of the bending part during the stamping and bending process, and the angle of the bending part can be accurately adjusted, so as to facilitate the automatic stripping and avoid the danger caused by manual operation.

[0034] Furthermore, the stamping mechanism 2 includes a cylinder support frame 201, a stamping cylinder 202, a stamping bending head 203 and a heating plate 204. The stamping cylinder 202 is fixedly installed on the upper end surface of the cylinder support frame 201, the stamping bending head 203 is fixedly installed on the bottom end of the stamping cylinder 202, and a heating plate 204 is arranged on the inner side of the stamping bending head 203. The stamping mechanism 2 can be used to stamp and bend the workpiece.

[0035] Furthermore, the angle adjustment mechanism 3 includes an angle adjustment cylinder 301, a guide connecting frame 302, a connecting support frame 303, a positioning block 304, a movable support plate 305 and a first support spring 306. The guide connecting frame 302 is fixedly installed on one end of the angle adjustment cylinder 301, the connecting support frame 303 is fixedly installed on the upper end surface of the guide connecting frame 302, a positioning block 304 is arranged on the inner side of the connecting support frame 303, and a movable support plate 305 is installed above the positioning block 304. The positioning block 304 and the movable support plate 305 are connected by two first support springs 306. The bending angle can be adjusted through the angle adjustment mechanism 3.

[0036] Furthermore, the end support mechanism 4 includes a fixed support frame 401, an axial end connecting plate 402 and a transmission support shaft 403. Two transmission support shafts 403 are installed on the upper end of the fixed support frame 401, and an axial end connecting plate 402 is installed on the outer side of both ends of one of the transmission support shafts 403. The end support mechanism 4 is used to facilitate guiding and supporting the bending part.

[0037] Furthermore, the automatic stripping mechanism 5 includes a connecting sleeve 501, a fixed sleeve 502, a stripping frame 503 and a second supporting spring 504. Two fixed sleeves 502 are fixedly installed on the inner side of the connecting sleeve 501. The inner side of the upper end of one of the fixed sleeves 502 is slidably connected to the stripping frame 503, and the outer side of the upper end of the fixed sleeve 502 is provided with a second supporting spring 504. The automatic stripping mechanism 5 facilitates automatic stripping of the bent parts.

[0038] Furthermore, a waist-shaped hole is provided on one side of the second mounting plate 104, and both ends of one of the bending wheels 105 extend to the inner side of the waist-shaped hole, and both ends of the connecting limit shaft 108 respectively pass through the second mounting plate 104 and the first mounting plate 103 and are connected and fixed to the side fixed support plate 102 through the connecting sleeve 107, and a bending groove is provided on the outer side of the middle part of the bending wheel 105 to facilitate positioning of the bending part and avoid displacement.

[0039] Furthermore, the fixing sleeve 502 is fixed to the inner side of the bottom end of the connecting sleeve 501 through a threaded connection, the upper end of the stripping frame 503 is connected to the bottom end of the connecting sleeve 501 through two second supporting springs 504, a positioning hole is provided on the inner side of the fixing sleeve 502, and the bottom end of the stripping frame 503 extends to the inner side of the positioning hole, and the fixing sleeve 502 can guide the stripping frame 503 to facilitate keeping the stripping frame 503 vertical.

[0040] A method for using a stamping and bending machine, the method for using the stamping and bending machine comprising the following steps:

[0041] (A) Check whether the functions of each part are intact, turn on the power, a waist-shaped hole is provided on one side of the second mounting plate 104, and both ends of one bending wheel 105 extend to the inner side of the waist-shaped hole. The height of the transmission support shaft 403 is adjusted according to the height of the two bending wheels 105. Specifically, two waist-shaped grooves are provided on one side of the fixed support frame 401, and both ends of the transmission support shaft 403 are provided on the inner side of the waist-shaped grooves, and both ends of the transmission support shaft 403 are connected and fixed to the fixed support frame 401 through the shaft end connecting plate 402. The height of the transmission support shaft 403 can be changed by adjusting the height of the shaft end connecting plate 402;

[0042] (B) The parts to be stamped and bent are placed on the upper end surfaces of the two bending wheels 105 through the guidance of the transmission support shaft 403, and the stamping cylinder 202 is started, so that the stamping cylinder 202 drives the stamping bending head 203 downward to perform stamping and bending operations under the support of the cylinder support frame 201. A bending groove is provided on the outer side of the middle part of the bending wheel 105 to facilitate positioning of the bent parts and avoid deviation. The bottom end of the vertical guide column 106 penetrates the bottom end of the cylinder support frame 201 and is fixed on the inner side of the side fixed support plate 102, so that the vertical guide column 106 plays a guiding role when the bottom end of the stamping cylinder 202 moves;

[0043] (C) During the bending process, the top of the stripping frame 503 contacts the bending piece, so that the bottom of the stripping frame 503 slides inside the fixing sleeve 502, and the second supporting spring 504 contracts. The electric heating resistance wire provided inside the heating plate 204 is powered on according to the material of the bending piece, so that the plastic piece can be heated to facilitate bending;

[0044] (D) One of the bending wheels 105 is adjusted according to the angle of the bending part of the bending piece. Specifically, the angle adjustment cylinder 301 is started so that the angle adjustment cylinder 301 drives the guide connecting frame 302 to move under the support of the main support frame 101. One end of the guide connecting frame 302 is plugged into the inner side of the side fixed support plate 102 to facilitate the stability of the guide connecting frame 302. The two ends of one of the bending wheels 105 are fixed to one end of the connecting support frame 303 by screws, thereby driving the bending wheel 105 to slide on the inner side of the upper end of the second mounting plate 104, so that the bending wheel 105 can adjust the angle of the bending piece, which is convenient for use. The positioning block 304 is connected to the movable support plate 305 by two first support springs 306 to facilitate the support of the bending piece.

[0045] (E) After the bending is completed, the stamping bending head 203 is reset. At this time, the upper end of the stripping frame 503 pushes the bent part upward under the support of the second support spring 504, and then can be separated from the two bending wheels 105, so as to realize the automatic stripping operation and reduce the risks brought by manual operation.

[0046] Furthermore, the movable support plate 305 is at the same height as the transmission support shaft 403. The outer sides of both ends of the transmission support shaft 403 are connected to the shaft end connecting plates 402 through positioning pins. The shaft end connecting plates 402 are connected to the upper ends of the fixed support frames 401 through screws. The height of the transmission support shaft 403 can be changed by adjusting the height of the shaft end connecting plates 402.

[0047] Furthermore, a positioning hole is provided at one end of the side fixed support plate 102, and one end of the guide connecting frame 302 extends to the inner side of the positioning hole. The guide connecting frame 302 is fixed to one end of the angle adjustment cylinder 301 by screws to facilitate maintaining the stability of the guide connecting frame 302.

[0048] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A stamping and bending machine for automobile pipe support frame, comprising an angle adjustment mechanism (3), characterized in that: One end of the angle adjustment mechanism (3) is slidably connected to a support positioning mechanism (1), and the support positioning mechanism (1) comprises a main support frame (101), a side fixed support plate (102), a first mounting plate (103), a second mounting plate (104), a bending wheel (105), a vertical guide column (106), a connecting sleeve (107) and a connecting limit shaft (108), the upper end surface of the main support frame (101) is fixedly mounted with two side fixed support plates (102), the inner side of the middle part of the side fixed support plate (102) is fixedly mounted with a vertical guide column (106), the inner sides of both ends of the side fixed support plate (102) are fixedly mounted with a connecting limit shaft (108), and the connecting limit Both ends of the positioning shaft (108) are connected to the side fixed support plate (102) through a connecting sleeve (107); two first mounting plates (103) are fixedly installed on the inner side of the side fixed support plate (102); a second mounting plate (104) is installed on one end of the first mounting plate (103); bending wheels (105) are installed on the inner sides of the upper ends of the first mounting plate (103) and the second mounting plate (104); an end support mechanism (4) is fixedly installed on one end of the side fixed support plate (102); an automatic stripping mechanism (5) is fixedly installed on the lower end surface of the main support frame (101); a punching mechanism (2) is fixedly installed on the upper end surface of the support positioning mechanism (1); The mechanism (2) comprises a cylinder support frame (201), a stamping cylinder (202), a stamping bending head (203) and a heating plate (204); the stamping cylinder (202) is fixedly mounted on the upper end surface of the cylinder support frame (201); the stamping bending head (203) is fixedly mounted on the bottom end of the stamping cylinder (202); a heating plate (204) is arranged on the inner side of the stamping bending head (203); the angle adjustment mechanism (3) comprises an angle adjustment cylinder (301), a guide connecting frame (302), a connecting support frame (303), a positioning block (304), a movable support plate (305) and a first support spring (306); one end of the angle adjustment cylinder (301) is fixedly mounted with the guide connecting frame (303) 02), a connecting support frame (303) is fixedly installed on the upper end surface of the guide connecting frame (302), a positioning block (304) is arranged on the inner side of the connecting support frame (303), a movable support plate (305) is installed above the positioning block (304), the positioning block (304) and the movable support plate (305) are connected by two first support springs (306), the end support mechanism (4) comprises a fixed support frame (401), an axial end connecting plate (402) and a transmission support shaft (403), two transmission support shafts (403) are installed on the upper end of the fixed support frame (401), and an axial end connecting plate (402) is installed on the outer side of both ends of one of the transmission support shafts (403),The automatic stripping mechanism (5) comprises a connecting sleeve (501), a fixing sleeve (502), a stripping frame (503) and a second supporting spring (504); two fixing sleeves (502) are fixedly installed on the inner side of the connecting sleeve (501); the stripping frame (503) is slidably connected to the inner side of the upper end of one of the fixing sleeves (502); and the second supporting spring (504) is arranged on the outer side of the upper end of the fixing sleeve (502). The method for using the stamping and bending machine comprises the following steps: (A) Check whether the functions of each part are intact, turn on the power supply, set a waist-shaped hole on one side of the second mounting plate (104), both ends of one bending wheel (105) extend to the inner side of the waist-shaped hole, and adjust the height of the transmission support shaft (403) according to the height of the two bending wheels (105). Specifically, two waist-shaped grooves are set on one side of the fixed support frame (401), both ends of the transmission support shaft (403) are set on the inner side of the waist-shaped grooves, and both ends of the transmission support shaft (403) are connected and fixed to the fixed support frame (401) through the shaft end connecting plate (402), and the height of the transmission support shaft (403) can be changed by adjusting the height of the shaft end connecting plate (402); (B) The workpiece to be stamped and bent is placed on the upper end surface of the two bending wheels (105) through the guidance of the transmission support shaft (403), and the stamping cylinder (202) is started, so that the stamping cylinder (202) drives the stamping bending head (203) downward to perform stamping and bending operations under the support of the cylinder support frame (201). A bending groove is provided on the outer side of the middle part of the bending wheel (105) to facilitate positioning of the bent workpiece and avoid deviation. The bottom end of the vertical guide column (106) passes through the bottom end of the stamping cylinder (202) and is fixed on the inner side of the side fixed support plate (102), so that the vertical guide column (106) plays a guiding role when the bottom end of the stamping cylinder (202) moves; (C) During the bending process, the top end of the stripping frame (503) contacts the bending piece, so that the bottom end of the stripping frame (503) slides inside the fixing sleeve (502), the second supporting spring (504) contracts, and the electric heating resistance wire provided inside the heating plate (204) is connected to the power supply according to the material of the bending piece, thereby heating the plastic piece to facilitate bending; (D) One of the bending wheels (105) is adjusted according to the angle of the bending part of the bending piece. Specifically, the angle adjustment cylinder (301) is started so that the angle adjustment cylinder (301) drives the guide connecting frame (302) to move under the support of the main support frame (101). One end of the guide connecting frame (302) is inserted into the inner side of the side fixed support plate (102) to facilitate maintaining the stability of the guide connecting frame (302). The two ends of one of the bending wheels (105) are connected and fixed to one end of the connecting support frame (303) by screws, thereby driving the bending wheel (105) to slide on the inner side of the upper end of the second mounting plate (104), so that the bending wheel (105) can adjust the angle of the bending piece, which is convenient for use. The positioning block (304) and the movable support plate (305) are connected by two first support springs (306) to facilitate supporting the bending piece. (E) After the bending is completed, the stamping bending head (203) is reset. At this time, the upper end of the stripping frame (503) pushes the bending part upward under the support of the second supporting spring (504), and then it can be separated from the two bending wheels (105), so as to facilitate the automatic stripping operation and reduce the risks brought by manual operation.

2. The punching and bending machine for automobile pipe support frame according to claim 1 is characterized in that: A waist-shaped hole is provided on one side of the second mounting plate (104), and both ends of one of the bending wheels (105) extend to the inner side of the waist-shaped hole. Both ends of the two connecting limit shafts (108) respectively penetrate the second mounting plate (104) and the first mounting plate (103) and are connected and fixed to the side fixed support plate (102) through the connecting sleeve (107), and a bending groove is provided on the outer side of the middle part of the bending wheel (105).

3. The punching and bending machine for automobile pipe support frame according to claim 2 is characterized in that: The fixing sleeve (502) is fixed to the inner side of the bottom end of the connecting sleeve (501) by threaded connection, the upper end of the stripping frame (503) is connected to the bottom end of the connecting sleeve (501) by two second supporting springs (504), a positioning hole is provided on the inner side of the fixing sleeve (502), and the bottom end of the stripping frame (503) extends to the inner side of the positioning hole.

4. The punching and bending machine for automobile pipe support frame according to claim 3 is characterized in that: The movable support plate (305) has the same height as the transmission support shaft (403), and the outer sides of both ends of the transmission support shaft (403) are connected to shaft end connecting plates (402) through positioning pins, and the shaft end connecting plates (402) are connected to the upper end of the fixed support frame (401) through screws.

5. The punching and bending machine for automobile pipe support frame according to claim 4 is characterized in that: One end of the side fixed support plate (102) is provided with a positioning hole, one end of the guide connecting frame (302) extends to the inner side of the positioning hole, and the guide connecting frame (302) is fixed to one end of the angle adjustment cylinder (301) by screw connection.

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