Automobile frame punching positioning mechanism

Abstract

The utility model discloses an automobile frame punching positioning mechanism which comprises a punching base arranged on a punching machine, a punching plate arranged above the punching base, a feeding conveying mechanism and a discharging conveying mechanism, wherein the feeding conveying mechanism and the discharging conveying mechanism are arranged on the upstream and the downstream of the punching machine respectively. A strip-shaped steel plate is conveyed between the stamping base and the stamping plate through a feeding conveying mechanism and a discharging conveying mechanism. The punching plate punches a strip-shaped steel plate on the punching base, the punching plate moves downwards to enable a positioning frame below the punching plate to extrude and position the top of the strip-shaped steel plate, the punching plate continues to move downwards to enable an extrusion head on the punching plate to coincide with a punching groove in the punching base, punching is conducted on the strip-shaped steel plate, and the punching plate moves upwards to enable the strip-shaped steel plate to move downwards. During punching, the extrusion head on the punching plate firstly moves upwards, the positioning frame extrudes to enable the punching hole in the strip-shaped steel plate to be separated from the extrusion head on the punching plate, upward bounce and vibration generated by friction force between the surface of the punching head and the inner edge of the punched hole of the strip-shaped steel plate are reduced, and the punching precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of punching machine equipment, in particular to a punching positioning mechanism for an automobile beam. Background Art

[0002] The automobile beam punching machine is an automated production equipment used in the beam punching process in the automobile manufacturing process. The beam is an important part of the automobile body structure. Punching is to open holes in the strip steel plate of the beam to install other parts or provide ventilation, drainage and other functions.

[0003] When the existing automobile beam strip steel plate is punched by a punching machine, the strip steel plate is conveyed to the top of the punching seat by a feeding conveying mechanism, and the punching plate above the punching seat moves downward to punch the strip steel plate. The punched strip steel plate is output by a feeding conveying mechanism, and finally the punching of the beam strip steel plate is completed.

[0004] In the prior art, when the punching head punches a hole in the strip steel plate of the automobile beam, since the punching head on the punching plate is in the shape of a round tube, when the punching head on the punching plate is engaged with the circular groove on the punching seat and lifted up, the surface of the punching head will rub against the inner edge of the hole in the strip steel plate. When the punching head moves upward, due to the influence of sliding friction, the strip steel plate at the punching position will be driven to bounce upward and vibrate, thereby causing the strip steel plate to deviate, affecting the punching accuracy of the strip steel plate. In order to improve the accuracy, a punching positioning mechanism for an automobile beam is designed. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a punching positioning mechanism for an automobile beam, which is used to solve the problem in the prior art that the punching accuracy of the automobile beam strip steel plate is affected when the punching head moves upward to punch the strip steel plate.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A punching and positioning mechanism for an automobile beam comprises a punching seat arranged on a punching machine, a punching plate arranged above the punching seat, and a loading and unloading conveying mechanism respectively arranged upstream and downstream of the punching machine. A strip steel plate is conveyed between the punching seat and the punching plate through the loading and unloading conveying mechanism. Guide rods are vertically penetrated symmetrically front and back on the mounting seats near the top on both sides of the punching plate. A positioning frame is horizontally arranged at the bottom of the guide rod, which is located below the punching plate and corresponds to the strip steel plate. A compression spring is arranged between the mounting seat and the positioning frame and on the surface of the guide rod.

[0008] Preferably, the bottom of the guide rod is movably inserted into the interior of the socket on the positioning frame and is locked and fixed by bolts.

[0009] Preferably, an anti-slip pad is provided at the bottom of the positioning frame.

[0010] Preferably, telescopic rods are vertically arranged on the front and back sides of the opposite ends of the loading and unloading conveying mechanism, the perforations on the telescopic rods are movably connected to adjustment rods that are perpendicular to the strip steel plates, and L-shaped limit blocks are vertically arranged on the opposite ends of the adjustment rods, and the opposite surfaces of the L-shaped limit blocks are in contact with both sides of the strip steel plates.

[0011] Preferably, rollers are provided in the mounting grooves on the top of the inner wall and the side surfaces of the inner wall of the L-shaped limit block.

[0012] Preferably, the guide rod and the mounting seat are slidably connected via a guide sleeve arranged inside a ball sleeve on the mounting seat.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model provides a guide rod, a positioning frame and a compression spring, and a punching plate punches a strip steel plate on a punching seat. The punching plate moves downward so that the positioning frame below the punching plate squeezes and positions the top of the strip steel plate. The punching plate continues to move downward so that the extrusion head on the punching plate coincides with the punching groove on the punching seat, and punches the strip steel plate. The punching plate moves, and the extrusion head on the punching plate moves upward first. The positioning frame squeezes and separates the punching hole on the strip steel plate from the extrusion head on the punching plate, reducing the upward bouncing and vibration caused by the friction between the surface of the punching head and the inner edge of the punching hole of the strip steel plate, improving the punching accuracy, and solving the problem in the prior art that the punching accuracy of the strip steel plate of the automobile beam is affected when the punching head moves upward to punch the hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is an enlarged view of the structure at the corresponding position of the positioning frame of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the corresponding position of the L-shaped limit block of the utility model.

[0018] In the figure: 1. punching machine; 101. punching seat; 102. punching plate; 103. feeding conveying mechanism; 104. unloading conveying mechanism; 105. mounting seat; 1051. ball bearing sleeve; 2. guide rod; 3. positioning frame; 301. socket; 302. anti-skid pad; 4. compression spring; 5. telescopic rod; 501. perforation; 6. adjustment rod; 7. L-shaped limit block; 701. mounting groove; 702. roller; 8. strip steel plate; 9. guide sleeve. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1-3 As shown, the utility model provides a technical solution: a punching positioning mechanism for an automobile frame, comprising a punching seat 101 arranged on a punching machine 1, a punching plate 102 arranged above the punching seat 101, a loading and conveying mechanism 103 and a unloading and conveying mechanism 104 respectively arranged upstream and downstream of the punching machine 1, a strip steel plate 8 is conveyed between the punching seat 101 and the punching plate 102 through the loading and conveying mechanism 103 and the unloading and conveying mechanism 104, guide rods 2 are vertically penetrated symmetrically front and back on the mounting seats 105 near the top on both sides of the punching plate 102, and the guide rods 2 and the mounting seat 105 are slidably connected through the guide sleeve 9 arranged inside the ball sleeve 1051 on the mounting seat 105, thereby reducing the friction between the surface of the guide rod 2 and the inner wall of the ball sleeve 1051.

[0021] A positioning frame 3 is horizontally arranged at the bottom of the guide rod 2, which is located below the stamping plate 102 and corresponds to the strip steel plate 8. The bottom of the guide rod 2 is movably plugged into the inside of the socket 301 on the positioning frame 3 and fixed by bolts, so as to facilitate the replacement of the damaged positioning frame 3. An anti-skid pad 302 is arranged at the bottom of the positioning frame 3, so that the strip steel plate 8 can be squeezed and fixed more firmly, and has a certain anti-skid effect. A compression spring 4 is arranged between the mounting seat 105 and the positioning frame 3 and on the surface of the guide rod 2. Telescopic rods 5 are vertically arranged on the front and back sides of the opposite ends of the loading and conveying mechanism 103 and the unloading and conveying mechanism 104.

[0022] The through hole 501 on the telescopic rod 5 is movably inserted into the adjusting rod 6 which is perpendicular to the strip steel plate 8. The opposite ends of the adjusting rod 6 are vertically provided with L-shaped limit blocks 7. The mounting grooves 701 on the top and side surfaces of the inner wall of the L-shaped limit block 7 are provided with rollers 702 to reduce friction. The opposite surfaces of the L-shaped limit block 7 are in contact with both sides of the strip steel plate 8, so as to limit the strip steel plate 8 to prevent displacement and further reduce the vibration and displacement of the strip steel plate 8.

[0023] Working principle: According to the width of the strip steel plate 8, the height of the telescopic rod 5 and the telescopic distance of the adjusting rod 6 are adjusted, so that the rollers 702 in the horizontal and vertical directions inside the L-shaped limit block 7 are respectively in contact with the top and side of the edges of both sides of the strip steel plate 8, and the strip steel plate 8 is limited. The feeding conveying mechanism 103 conveys the strip steel plate 8 to the punching seat 101 at the top of the punching machine 1. The punching plate 102 moves downward to drive the positioning frame 3 to squeeze and position the top of the strip steel plate 8. The punching plate 1 The punching head on 02 continues to press down so that the punching head coincides with the punching groove on the punching seat 101, and the strip steel plate 8 is punched. The punching plate 102 moves upward, and the strip steel plate 8 squeezes the positioning frame 3, so that the punching hole on the strip steel plate 8 is separated from the punching head on the punching plate 102, reducing the upward bounce and vibration caused by the friction between the surface of the punching head and the inner edge of the punching hole in the strip steel plate 8, thereby improving the punching accuracy. Finally, the punched strip steel plate 8 is output through the unloading conveying mechanism 104.

[0024] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A punching and positioning mechanism for an automobile beam, comprising a punching seat (101) arranged on a punching machine (1), a punching plate (102) arranged above the punching seat (101), and a loading and conveying mechanism (103) and a unloading and conveying mechanism (104) respectively arranged upstream and downstream of the punching machine (1), wherein a strip steel plate (8) is conveyed between the punching seat (101) and the punching plate (102) by the loading and conveying mechanism (103) and the unloading and conveying mechanism (104), characterized in that: Guide rods (2) are vertically and symmetrically arranged on the mounting seats (105) near the top on both sides of the stamping plate (102), and are penetrated therethrough; a positioning frame (3) is horizontally arranged at the bottom of the guide rod (2) and is located below the stamping plate (102) and corresponds to the strip steel plate (8); and a compression spring (4) is arranged between the mounting seat (105) and the positioning frame (3) and on the surface of the guide rod (2).

2. The automobile beam punching and positioning mechanism according to claim 1, characterized in that: The bottom of the guide rod (2) is movably plugged into the interior of the plug-in seat (301) on the positioning frame (3) and is locked and fixed by bolts.

3. The automobile beam punching and positioning mechanism according to claim 1, characterized in that: An anti-slip pad (302) is provided at the bottom of the positioning frame (3).

4. The automobile beam punching and positioning mechanism according to claim 1, characterized in that: Telescopic rods (5) are vertically arranged on the front and back sides of the opposite ends of the loading conveying mechanism (103) and the unloading conveying mechanism (104); the through holes (501) on the telescopic rods (5) are movably plugged into an adjustment rod (6) perpendicular to the strip steel plate (8); L-shaped limit blocks (7) are vertically arranged on the opposite ends of the adjustment rods (6); and the opposite surfaces of the L-shaped limit blocks (7) are in contact with both sides of the strip steel plate (8).

5. The automobile beam punching and positioning mechanism according to claim 4, characterized in that: Rollers (702) are provided in the mounting grooves (701) at the top and side surfaces of the inner wall of the L-shaped limiting block (7).

6. The automobile beam punching and positioning mechanism according to claim 1, characterized in that: The guide rod (2) and the mounting seat (105) are slidably connected via a guide sleeve (9) disposed inside a ball sliding sleeve (1051) on the mounting seat (105).

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