Square tube punching machine

Abstract

The utility model relates to a square tube punching machine which comprises a bottom plate, a U-shaped frame is installed on the upper surface of the bottom plate, a hydraulic cylinder is installed on the top of the U-shaped frame, the end portion of the telescopic end of the hydraulic cylinder penetrates to the inner side of the U-shaped frame and is provided with an installation base, a connecting base is arranged at the bottom of the installation base, and a punch is installed at the bottom of the connecting base. A connecting mechanism is arranged between the connecting seat and the punch; two parallel limiting plates are arranged on the upper surface of the bottom plate in the length direction of the bottom plate, a baffle is installed between the two limiting plates in a sliding mode, and an adjusting mechanism capable of driving the baffle to move horizontally is arranged on the upper surface of the bottom plate. Through the arrangement of the two limiting plates, a square pipe can be limited and guided, the square pipe can be located below the punch in the fixed direction, deflection is avoided, through the arrangement of the baffle, the end of the square pipe can be limited, and therefore punching operation can be conducted at the designated position without measuring the square pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of punching, in particular to a square tube punching machine. Background Art

[0002] Punching machine is a device used to make holes or other shapes on the surface of materials. It is usually used for metal plates, plastic plates or other types of plate processing. By applying pressure on the surface of the workpiece with a die or punch, the desired hole or shape is formed. In the manufacturing industry, punching machines are widely used to manufacture parts, components and various products. They can efficiently complete large-scale processing tasks, improve production efficiency and reduce costs.

[0003] At present, when punching a square tube, it is usually necessary to measure the square tube first so that the punch can punch at the specified position of the square tube. However, the measurement process requires additional time and labor costs. Secondly, even if accurate measurements are made, there is still a certain possibility of error, resulting in the punching position deviating from the expected position. In addition, according to processing requirements, it is often necessary to replace punches of different shapes or specifications. However, the existing punching machines are cumbersome and inefficient when replacing punches. Utility Model Content

[0004] The utility model aims to provide a square tube punching machine which can punch holes of a fixed length on a square tube and is convenient for replacing the punch.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is as follows.

[0006] A square tube punching machine comprises a bottom plate, a U-shaped frame is installed on the upper surface of the bottom plate, a hydraulic cylinder is installed on the top of the U-shaped frame, the end of the telescopic end of the hydraulic cylinder penetrates the inner side of the U-shaped frame and is installed with a mounting seat, a connecting seat is arranged at the bottom of the mounting seat, a punch is installed at the bottom of the connecting seat, and a connecting mechanism is arranged between the connecting seat and the punch. Two mutually parallel limit plates are arranged on the upper surface of the bottom plate along its length direction, a baffle is slidably installed between the two limit plates, and an adjustment mechanism capable of driving the baffle to move horizontally is arranged on the upper surface of the bottom plate.

[0007] It can be seen that, through the setting of the two limit plates, the square tube can be limited and guided, so that the square tube can be located below the punch in a fixed direction to avoid deflection. Through the setting of the baffle, the end of the square tube can be limited, so that there is no need to measure the square tube, and the punching operation can be performed at the specified position. Moreover, through the setting of the adjusting mechanism, the baffle can be adjusted, and then the punching position of the square tube can be flexibly adjusted. Moreover, through the setting of the connecting mechanism, the punch can be quickly replaced, thereby improving the working efficiency.

[0008] Furthermore, the connecting mechanism includes a conical groove opened at the bottom of the mounting seat, a conical block is installed on the upper surface of the connecting seat, the conical block is adapted to the conical groove, positioning holes are opened on the four side surfaces of the conical block, four inner grooves are opened inside the mounting seat, positioning pins are arranged inside the inner grooves, and the positioning pins are plugged into the positioning holes, a groove is opened inside the positioning pins, a telescopic rod A is installed inside the groove, the end of the telescopic rod A is connected to the inner wall of the inner groove, a spring A is sleeved on the outer surface of the telescopic rod A, and the two ends of the spring A are respectively abutted against the inner wall of the groove and the inner wall of the inner groove.

[0009] When installing the punch, the conical block can be inserted into the conical groove. The inclined surface of the conical block causes a backlog on the end of the locating pin, thereby driving the locating pin to shrink into the inner groove and compress the spring A. Due to the structural characteristics of the conical block and the conical groove, the purpose of automatic positioning can be achieved, so that the four locating holes can accurately correspond to the four locating pins. When the conical block is fully inserted into the conical groove, the four locating holes just correspond to the four locating pins. At this time, the compressed spring A releases the elastic force, thereby pushing the locating pin to be inserted into the locating hole, thereby achieving the purpose of quick installation of the punch. Only an upward push action is required, thereby improving the replacement efficiency of the punch.

[0010] Furthermore, the adjustment mechanism includes a mounting groove opened on the upper surface of the base plate, a threaded rod is rotatably connected inside the mounting groove, a nut seat is installed on the outer surface of the threaded rod, and the nut seat is connected to the baffle, and a screw block is installed at the end of the threaded rod.

[0011] The threaded rod can be driven to rotate by rotating the screw block, which can then drive the nut seat to slide along its length direction, thereby achieving the purpose of driving the baffle to move and adjusting its position.

[0012] Furthermore, the interior of each of the four inner grooves is provided with a transverse plate, a wedge block A is installed at the bottom of the transverse plate, a wedge block B is installed on the outer surface of the positioning pin, and a collar is installed at the ends of the four transverse plates.

[0013] When the punch needs to be removed, the collar can be held and pushed downward, thereby driving the four horizontal plates to move downward at the same time, and driving the wedge block A to squeeze the wedge block B. The wedge block B is squeezed and drives the positioning pin to move and be pulled out from the positioning hole, so that the conical block can fall off from the conical groove and the purpose of removing the punch is achieved. Since only one downward pushing action is required, the efficiency of replacing the punch is improved.

[0014] Furthermore, a connecting plate is installed on the outer surface of the telescopic end of the hydraulic cylinder, telescopic rods B are installed on both sides of the lower surface of the connecting plate, pressure plates are installed on the ends of the two telescopic rods B, and a spring B is sleeved on the outer surface of the telescopic rod B, and the two ends of the spring B are respectively abutted against the connecting plate and the pressure plate.

[0015] When the hydraulic cylinder drives the punch to punch the square tube, the pressure plate will first press on the upper surface of the square tube and compress the spring B. The compressed spring B applies thrust to the pressure plate, pressing it tightly against the square tube. Therefore, with the limiting effect of the two limit plates, the square tube can be fixed and the punching quality can be improved.

[0016] Furthermore, a rubber pad is arranged at the bottom of the pressing plate, and an outer surface of the rubber pad is provided with anti-slip grooves.

[0017] By setting the rubber pad, the protection performance of the other pipe can be improved to avoid crushing injuries, and the rubber pad can increase the friction between the square pipe and the rubber pad with the anti-slip pattern, thereby further improving the fixing effect of the other pipe.

[0018] Furthermore, the upper surface of the limiting plate is provided with scales along its length direction.

[0019] By setting the scale, it is convenient to accurately adjust the position of the baffle.

[0020] Furthermore, a protrusion is installed on the inner wall of the inner groove, a telescopic rod C is installed on the upper surface of the protrusion, the end of the telescopic rod C is connected to the cross plate, and a spring C is sleeved on the outer surface of the telescopic rod C, and the two ends of the spring C are respectively in contact with the protrusion and the cross plate.

[0021] By setting the spring C, an upward thrust can be applied to the wedge block A, thereby reducing the force exerted by the wedge block A on the wedge block B during the punching operation. In addition, with the dual action of the spring A exerting a thrust on the locating pin, the locating pin can be firmly inserted into the locating hole, thereby ensuring the stability of the punch connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is one of the three-dimensional structural schematic diagrams of the utility model;

[0023] Figure 2 This is the second schematic diagram of the three-dimensional structure of the utility model;

[0024] Figure 3 for Figure 2 A is an enlarged schematic diagram;

[0025] Figure 4 It is a schematic diagram of the regional structure of the telescopic end of the hydraulic cylinder in the utility model;

[0026] Figure 5 It is a structural schematic diagram of the connecting mechanism in the utility model;

[0027] Figure 6 It is a structural schematic diagram of the connecting seat in the utility model.

[0028] In the figure: 100, bottom plate; 101, U-shaped frame; 102, hydraulic cylinder; 103, mounting seat; 104, connecting seat; 105, punch; 106, limit plate; 107, baffle; 200, connecting mechanism; 201, conical groove; 202, conical block; 203, positioning hole; 204, inner groove; 205, positioning pin; 206, groove; 207, telescopic rod A; 208, spring A; 300 , adjusting mechanism; 301, mounting groove; 302, threaded rod; 303, nut seat; 304, screw block; 400, cross plate; 401, wedge block A; 402, wedge block B; 403, collar; 500, connecting plate; 501, telescopic rod B; 502, pressure plate; 503, spring B; 600, rubber pad; 700, scale; 800, bump; 801, telescopic rod C; 802, spring C. DETAILED DESCRIPTION

[0029] The utility model is described in detail below with reference to the accompanying drawings.

[0030] like Figure 1-6 As shown, a square tube punching machine includes a bottom plate 100, a U-shaped frame 101 is installed on the upper surface of the bottom plate 100, a hydraulic cylinder 102 is installed on the top of the U-shaped frame 101, the end of the telescopic end of the hydraulic cylinder 102 penetrates the inner side of the U-shaped frame 101 and is installed with a mounting seat 103, a connecting seat 104 is provided at the bottom of the mounting seat 103, a punch 105 is installed at the bottom of the connecting seat 104, and a connecting mechanism 200 is provided between the connecting seat 104 and the punch 105. Two mutually parallel limiting plates 106 are provided on the upper surface of the bottom plate 100 along its length direction, a baffle 107 is slidably installed between the two limiting plates 106, and an adjusting mechanism 300 capable of driving the baffle 107 to move horizontally is provided on the upper surface of the bottom plate 100.

[0031] When in use, first adjust the baffle 107 through the connecting mechanism 200 according to the position of the punching hole required for the square tube, then put the square tube between the two limit plates 106, and make the end of the square tube rest on the baffle 107, the two limit plates 106 can limit the square tube, at this time, the position of the punching hole required for the square tube corresponds to the punch 105, then start the hydraulic cylinder 102, the telescopic end of the hydraulic cylinder 102 drives the punch 105 to descend and complete the punching operation of the square tube, in subsequent operations, it is only necessary to continue to put the square tube between the two limit plates 106 to perform the punching operation, without measuring the square tube, and ensuring the uniformity of the punching position of each square tube, thereby improving the working efficiency and punching accuracy, and through the setting of the connecting mechanism 200, the punch 105 can be quickly replaced to improve the working efficiency.

[0032] Specifically, the connecting mechanism 200 includes a conical groove 201 provided at the bottom of the mounting seat 103, a conical block 202 is installed on the upper surface of the connecting seat 104, the conical block 202 is adapted to the conical groove 201, and positioning holes 203 are provided on the four side surfaces of the conical block 202, and four inner grooves 204 are provided inside the mounting seat 103, and positioning pins 205 are provided inside the inner grooves 204, and the positioning pins 205 are plugged into the positioning holes 203, and a groove 206 is provided inside the positioning pin 205, and a telescopic rod A207 is installed inside the groove 206, and the end of the telescopic rod A207 is connected to the inner wall of the inner groove 204, and a spring A208 is sleeved on the outer surface of the telescopic rod A207, and the two ends of the spring A208 are respectively abutted against the inner wall of the groove 206 and the inner wall of the inner groove 204. When When installing the punch 105, the conical block 202 can be inserted into the conical groove 201. The inclined surface of the conical block 202 causes a backlog on the end of the positioning pin 205, thereby driving the positioning pin 205 to shrink into the interior of the inner groove 204 and compressing the spring A208. Due to the structural characteristics of the conical block 202 and the conical groove 201, the purpose of automatic positioning can be achieved, so that the four positioning holes 203 can accurately correspond to the four positioning pins 205. When the conical block 202 is fully inserted into the conical groove 201, the four positioning holes 203 just correspond to the four positioning pins 205. At this time, the compressed spring A208 releases the elastic force, thereby pushing the positioning pin 205 to be inserted into the positioning hole 203, thereby achieving the purpose of quick installation of the punch 105, and only one upward pushing action is required, thereby improving the replacement efficiency of the punch 105.

[0033] Specifically, the adjustment mechanism 300 includes a mounting groove 301 provided on the upper surface of the base plate 100, a threaded rod 302 is rotatably connected inside the mounting groove 301, a nut seat 303 is installed on the outer surface of the threaded rod 302, and the nut seat 303 is connected to the baffle 107, and a screw block 304 is installed at the end of the threaded rod 302. By rotating the screw block 304, the threaded rod 302 can be driven to rotate, and the nut seat 303 can be driven to slide along its length direction, thereby achieving the purpose of driving the baffle 107 to move, and its position can be adjusted.

[0034] Specifically, a transverse plate 400 is provided inside each of the four inner grooves 204, a wedge block A401 is installed at the bottom of the transverse plate 400, a wedge block B402 is installed on the outer surface of the positioning pin 205, and a ring 403 is installed together at the ends of the four transverse plates 400. When the punch 105 needs to be removed, the ring 403 can be held and pushed downward, so that the four transverse plates 400 can be driven to move downward at the same time, and the wedge block A401 can be driven to squeeze the wedge block B402. The wedge block B402 is squeezed and drives the positioning pin 205 to move and be pulled out from the positioning hole 203, so that the conical block 202 can fall off from the inside of the conical groove 201, and the purpose of removing the punch 105 is achieved. Since only one downward pushing action is required, the replacement efficiency of the punch 105 is improved.

[0035] Specifically, a connecting plate 500 is installed on the outer surface of the telescopic end of the hydraulic cylinder 102, and telescopic rods B501 are installed on both sides of the lower surface of the connecting plate 500. Pressure plates 502 are installed at the ends of the two telescopic rods B501. A spring B503 is sleeved on the outer surface of the telescopic rod B501, and the two ends of the spring B503 are respectively abutted against the connecting plate 500 and the pressure plate 502. When the hydraulic cylinder 102 drives the punch 105 to punch the square tube, the pressure plate 502 will first press on the upper surface of the square tube and compress the spring B503. The compressed spring B503 applies a thrust to the pressure plate 502 to press it tightly on the square tube. Therefore, in conjunction with the limiting effect of the two limiting plates 106, the square tube can be fixed and the punching quality can be improved.

[0036] Specifically, a rubber pad 600 is provided at the bottom of the pressure plate 502, and an anti-skid pattern is provided on the outer surface of the rubber pad 600. The provision of the rubber pad 600 can improve the protection performance of the square tube to avoid crushing injuries. In addition, the rubber pad 600 and the provision of the anti-skid pattern can increase the friction between the square tube and the square tube, thereby further improving the fixing effect of the square tube.

[0037] Specifically, the upper surface of the limiting plate 106 is provided with scales 700 along the length direction thereof, and the setting of the scales 700 facilitates precise adjustment of the position of the baffle 107 .

[0038] Specifically, a protrusion 800 is installed on the inner wall of the inner groove 204, and a telescopic rod C801 is installed on the upper surface of the protrusion 800. The end of the telescopic rod C801 is connected to the cross plate 400, and the outer surface of the telescopic rod C801 is sleeved with a spring C802. The two ends of the spring C802 are respectively in contact with the protrusion 800 and the cross plate 400. Through the setting of the spring C802, an upward thrust can be applied to the wedge block A401, thereby reducing the force exerted by the wedge block A401 on the wedge block B402 during the punching operation. In addition, under the dual action of the spring A208 exerting a thrust on the locating pin 205, the locating pin 205 can be firmly inserted into the locating hole 203, thereby ensuring the stability of the connection of the punch 105.

[0039] The above is a detailed description of the utility model in combination with specific embodiments, and it cannot be determined that the specific implementation methods of the utility model are limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, making several equivalent substitutions or obvious modifications without departing from the concept of the utility model, and having the same performance or use, should be regarded as belonging to the patent protection scope of the utility model determined by the submitted claims.

Claims

1. A square tube punching machine, comprising a bottom plate (100), characterized in that: A U-shaped frame (101) is installed on the upper surface of the bottom plate (100), a hydraulic cylinder (102) is installed on the top of the U-shaped frame (101), the end of the telescopic end of the hydraulic cylinder (102) penetrates the inner side of the U-shaped frame (101) and is installed with a mounting seat (103), a connecting seat (104) is arranged at the bottom of the mounting seat (103), a punch (105) is installed at the bottom of the connecting seat (104), and a connecting mechanism (200) is arranged between the connecting seat (104) and the punch (105); The upper surface of the bottom plate (100) is provided with two mutually parallel limiting plates (106) along its length direction, a baffle (107) is slidably installed between the two limiting plates (106), and the upper surface of the bottom plate (100) is provided with an adjustment mechanism (300) capable of driving the baffle (107) to move horizontally.

2. A square tube punching machine according to claim 1, characterized in that: The connecting mechanism (200) comprises a conical groove (201) provided at the bottom of the mounting seat (103); a conical block (202) is installed on the upper surface of the connecting seat (104); the conical block (202) is adapted to the conical groove (201); positioning holes (203) are provided on four side surfaces of the conical block (202); four inner grooves (204) are provided inside the mounting seat (103); positioning pins (205) are provided inside the inner grooves (204); and the positioning pins (205) are provided inside the inner grooves (204). The pin (205) is plugged into the positioning hole (203), a groove (206) is provided inside the positioning pin (205), a telescopic rod A (207) is installed inside the groove (206), the end of the telescopic rod A (207) is connected to the inner wall of the inner groove (204), a spring A (208) is sleeved on the outer surface of the telescopic rod A (207), and the two ends of the spring A (208) are respectively in contact with the inner wall of the groove (206) and the inner wall of the inner groove (204).

3. A square tube punching machine according to claim 2, characterized in that: The adjustment mechanism (300) comprises a mounting groove (301) provided on the upper surface of the base plate (100), a threaded rod (302) being rotatably connected inside the mounting groove (301), a nut seat (303) being installed on the outer surface of the threaded rod (302), and the nut seat (303) being connected to the baffle (107), and a screw block (304) being installed at the end of the threaded rod (302).

4. A square tube punching machine according to claim 3, characterized in that: A transverse plate (400) is disposed inside each of the four inner grooves (204), a wedge block A (401) is installed at the bottom of the transverse plate (400), a wedge block B (402) is installed on the outer surface of the positioning pin (205), and a collar (403) is installed at the ends of the four transverse plates (400).

5. A square tube punching machine according to claim 4, characterized in that: A connecting plate (500) is installed on the outer surface of the telescopic end of the hydraulic cylinder (102), telescopic rods B (501) are installed on both sides of the lower surface of the connecting plate (500), and pressure plates (502) are installed at the ends of the two telescopic rods B (501). A spring B (503) is sleeved on the outer surface of the telescopic rod B (501), and the two ends of the spring B (503) are respectively in contact with the connecting plate (500) and the pressure plate (502).

6. A square tube punching machine according to claim 5, characterized in that: A rubber pad (600) is provided at the bottom of the pressing plate (502), and an outer surface of the rubber pad (600) is provided with anti-slip grooves.

7. A square tube punching machine according to claim 1, characterized in that: The upper surface of the limiting plate (106) is provided with scales (700) along its length direction.

8. A square tube punching machine according to claim 4, characterized in that: A convex block (800) is installed on the inner wall of the inner groove (204), a telescopic rod C (801) is installed on the upper surface of the convex block (800), the end of the telescopic rod C (801) is connected to the horizontal plate (400), and a spring C (802) is sleeved on the outer surface of the telescopic rod C (801), and the two ends of the spring C (802) are respectively in contact with the convex block (800) and the horizontal plate (400).

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