Sheet metal plate cutting mechanism

Abstract

The utility model relates to the technical field of metal plate cutting, in particular to a metal plate cutting mechanism which comprises a main body, an extension frame is arranged at the top of the main body, a sinking table is arranged at the position, below the extension frame, of the main body, a base is arranged in the sinking table, a blade is arranged above the base, a connecting joint is arranged at the top of the blade, and the connecting joint is connected with the extension frame. One ends, far away from the base, of the blade and the connecting joint are respectively pivoted with the extension frame, the blade and the base are arranged in a staggered manner, and after the blade is turned over around the pivoting point, the adjacent side end surfaces of the blade and the base form a tightly attached cutting working surface, the connecting joint is pivoted with a vertical rod, and a pedal is arranged at the bottom of the vertical rod. A positioning rod is arranged on the side, away from the blade, of the base, the top of the positioning rod is connected with the side wall of the extending frame, and a positioning and pressing structure used for pressing the metal plate in the cutting process is arranged at the bottom of the positioning rod. The metal plate cutting device can solve the problems that operation is difficult and the cutting position is prone to deviation when some existing metal plates are manually cut.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet metal cutting, in particular to a sheet metal plate cutting mechanism. Background Art

[0002] Sheet metal is a comprehensive cold processing technology for thin metal plates (usually less than 6mm), including shearing, punching / cutting / combining, folding, welding, riveting, splicing, forming (such as car body), etc. Its notable feature is that the thickness of the same part is consistent. The products processed by sheet metal technology are called sheet metal parts.

[0003] There are also many kinds of supporting tools used for sheet metal. The most traditional one is metal cutting scissors, which are used for manual cutting. It is the entry-level basis in the sheet metal industry and is suitable for small parts processing and material preparation, or for use in emergency situations without electricity. For example, this patent CN202021585275.3 discloses a metal plate cutting device, which is used for manual cutting. When in use, it is necessary to hold the plate with one hand and press the rod with the other hand. If it is a thick plate or thick steel bar, it will be more laborious, and this method is likely to cause the cutting position to deviate. These are issues that technical personnel in this field need to consider when designing the cutting mechanism. Utility Model Content

[0004] The utility model provides a sheet metal plate cutting mechanism, which can solve the problems that some existing sheet metals are difficult to operate during manual cutting and the cutting position is easily deviated.

[0005] The utility model is achieved in this way:

[0006] A sheet metal plate cutting mechanism comprises a main body, an extension frame with a "7"-shaped structure is provided on the top of the main body, a sinker is provided on the main body below the extension frame, a base is provided in the sinker, a blade is provided above the base, a connecting joint is provided on the top of the blade, the blade and the connecting joint are respectively pivotally connected to the extension frame at one end away from the base, and the pivot axes are both horizontally arranged, the blade and the base are staggered, after the blade is flipped around its pivot point, the adjacent side end surfaces of the blade and the base form a tightly fitting cutting working surface, the connecting joint is pivotally connected to a vertical rod, a pedal is provided at the bottom of the vertical rod, a positioning rod is provided on the side of the base away from the blade, the top of the positioning rod is connected to the side wall of the extension frame, and the bottom of the positioning rod is provided with a positioning and holding structure for holding the sheet metal plate during the cutting process.

[0007] On the basis of the above technical solution, a mounting portion is provided at the bottom of the main body, and a longitudinal through hole structure for installing bolts is provided on the mounting portion.

[0008] On the basis of the above technical solution, the top of the base is a horizontal end surface structure, and the base is connected to the side wall of the sinker through transversely assembled bolts.

[0009] On the basis of the above technical solution, the connection joint is a "V"-shaped structure, and its inner corner is an obtuse angle, and its inner corner is set upward after installation.

[0010] On the basis of the above technical solution, a connecting curved plate with a "C"-shaped structure is provided between the connecting joint and the blade, and the upper and lower ends of the connecting curved plate are respectively pivotally connected to the connecting joint and the blade through transversely assembled bolts.

[0011] On the basis of the above technical solution, a pressure rod is connected to the top of the outer end of the connecting joint, and the vertical rod is pivotally connected to the outer end of the pressure rod.

[0012] On the basis of the above technical solution, the vertical rod is an "L"-shaped structure, the horizontal section at the bottom of which constitutes the pedal, and a rib is provided at the corner where the pedal is connected to the vertical section of the vertical rod.

[0013] Based on the above technical solution, the pedal is provided with anti-slip grooves.

[0014] On the basis of the above technical solution, a longitudinal strip hole is provided at the top of the positioning rod, and the strip hole is connected to the extension frame by a transversely assembled bolt. The connection position constitutes the lifting limit point of the positioning rod. A clamping block is provided on the inner wall of the positioning rod, and a top block matched with the clamping block is provided on the outer wall of the blade. When the top block follows the blade to move upward, the positioning rod can be lifted with the help of the clamping block.

[0015] Compared with the prior art, the utility model has at least the following advantages:

[0016] The utility model provides a vertical rod and a pedal, and when in use, a pedal driving mode can be utilized instead of an existing one-handed pressure rod driving mode, which can greatly reduce the work intensity and provide more sufficient cutting power. In addition, the operator's hands can be freed, and both hands can be used to perform sheet metal loading and unloading and supporting operations at the same time, which helps to reduce the deviation of the sheet metal position during cutting. Therefore, this solution can greatly improve the cutting efficiency and cutting accuracy of the sheet metal. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the front three-dimensional structure of a sheet metal plate cutting mechanism in one embodiment;

[0019] Figure 2 A schematic diagram of the back three-dimensional structure of a sheet metal plate cutting mechanism in one embodiment;

[0020] Figure 3 for Figure 2 Schematic diagram of the local structure of the middle positioning rod;

[0021] Figure 4 for Figure 1 Schematic diagram of the local structure of the middle limit point;

[0022] Figure 5 This is a schematic diagram of the structure of the anti-slip pattern in one embodiment;

[0023] Figure 6 Schematic diagram of the structure of the top block and the clamping block in one embodiment.

[0024] Markings in the figure: 1. Main body; 11. Extension frame; 12. Sinking platform; 13. Mounting part; 2. Base; 3. Connecting joint; 31. Press rod; 32. Top block; 4. Blade; 5. Connecting curved plate; 6. Vertical rod; 61. Pedal; 62. Anti-slip groove; 7. Positioning rod; 71. Strip hole; 72. Block; a. First pivot point; b. Locking point; c. Lifting limit point. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are 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. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.

[0026] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to an element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0028] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Example 1: See Figures 1 to 4 This embodiment discloses a sheet metal cutting mechanism, including a main body 1, a base 2, a connecting joint 3, a blade 4, a connecting curved plate 5, a vertical rod 6 and a positioning rod 7.

[0030] Among them, the main body 1 is a vertically arranged base 2 structure, and a mounting portion 13 is provided at the bottom. The mounting portion 13 is vertically arranged with the main body 1, and can form a rib reinforcement structure of the main body 1. The mounting portion 13 is provided with a longitudinal through hole structure for installing bolts, which facilitates the connection and assembly of the main body 1 with an external bracket or the ground.

[0031] Furthermore, an extension frame 11 with a "7"-shaped structure is provided on the top of the main body 1. The extension frame 11 serves as an installation carrier and provides more flexible installation space conditions.

[0032] The main body 1 is provided with a sink 12 below the extension frame 11. The sink 12 is specifically a sink groove structure located on the side wall of the main body 1. A base 2 is provided in the sink 12. The top of the base 2 is a horizontal end surface structure. During use, the top end surface of the base 2 is used to abut against the bottom end surface of the sheet metal plate to support the sheet metal plate and cooperate with the relative movement of the blade 4 to complete the cutting operation. The base 2 is connected to the side wall of the sink 12 by transversely assembled bolts. The sink 12 structure makes the installation of the base 2 more compact and closely fits the main body 1, which can greatly improve the structural stability of the base 2 and also help the overall structure to be more compact.

[0033] A blade 4 is provided above the base 2, with the cutting edge at the bottom thereof, and a connecting joint 3 is provided on the top of the blade 4. Figure 1 and Figure 2 The blade 4 and the connecting joint 3 are respectively pivotally connected to the extension frame 11 at one end away from the base 2, and the pivot axes are horizontally arranged left and right. The blade 4 and the connecting joint 3 can be longitudinally flipped around their pivot axes. During the flipping process, the blade 4 and the base 2 are relatively displaced, and the cutting operation can be performed. Specifically, the blade 4 and the base 2 are staggered. After the blade 4 flips around its pivot point, the adjacent side end surfaces of the blade 4 and the base 2 form a tightly fitting cutting operation surface. Figure 1and Figure 2 The pivot point between the blade 4 and the extension frame 11 is the first pivot point a, which is realized by a latch structure, and the pivot point between the connecting joint 3 and the extension frame 11 is realized by a bolt structure, which is not specifically marked in the figure.

[0034] Furthermore, the connecting joint 3 is pivotally connected to a vertical rod 6, and a pedal 61 is provided at the bottom of the vertical rod 6. Specifically, the connecting joint 3 is a "V"-shaped structure, and its inner corner is an obtuse angle, and its inner corner is set upward after installation. A pressure rod 31 is connected to the top of the outer end of the connecting joint 3, and the vertical rod 6 is pivotally connected to the outer end of the pressure rod 31. This structure makes the pressure rod 31 in an upward posture, which is convenient for pressing down on its outer end, and also improves the movable stroke, so that the blade 4 has a greater cutting force when cutting. It should be noted that the outer end of the connecting joint has a slot, and the inner end of the pressure rod 31 is inserted into the slot, and then locked and fixed by a transversely assembled bolt, which is conducive to the disassembly and assembly of the pressure rod 31, convenient maintenance and replacement, and can meet the connection requirements of pressure rods 31 with various inner sections with length specifications.

[0035] The vertical rod 6 is an "L"-shaped structure, and its top is pivotally connected to the outer end of the pressure rod 31 through a transversely installed pin. The pivoting method is beneficial for the vertical section of the vertical rod 6 to always remain in a vertical state under the action of the deadweight of the pedal 61. The horizontal section at the bottom constitutes the pedal 61. Ribs are provided at the corners where the pedal 61 is connected to the vertical section of the vertical rod 6, which can improve the structural strength of the pedal 61 and extend its service life.

[0036] In order to increase the turning stroke of the blade 4 and the torque, a "C"-shaped connecting curved plate 5 is provided between the connecting joint 3 and the blade 4. The upper and lower ends of the connecting curved plate 5 are respectively pivotally connected to the connecting joint 3 and the blade 4 through transversely assembled bolts. In this embodiment, two connecting curved plates 5 are symmetrically provided on the left and right sides of the connecting joint 3, which can greatly improve its structural strength and transmission stability.

[0037] The base 2 is provided with a positioning rod 7 on the side away from the blade 4, and the top of the positioning rod 7 is connected to the side wall of the extension frame 11. Specifically, Figure 3 As shown, the top of the positioning rod 7 is provided with a longitudinal strip hole 71, and the strip hole 71 is connected to the extension frame 11 through a transversely assembled bolt. The connection position constitutes the lifting limit point c of the positioning rod 7. It should be noted that the bolt forms an anti-drop limit structure at the outer end of the strip hole 71 to prevent the positioning rod 7 from falling off the bolt. The bottom of the positioning rod 7 is provided with a positioning and holding structure for holding the sheet metal plate during the cutting process. Figure 2As shown, its bottom is a horizontal plate structure, which can be pressed on the top end face of the sheet metal plate when in use, and cooperate with the support of the base 2 at the bottom of the sheet metal plate to make the sheet metal plate tooling more stable during the cutting process, which can greatly reduce the risk of position deviation during cutting of the sheet metal plate. When loading the sheet metal plate, the positioning rod 7 is manually lifted up in advance to form a longitudinal gap between its bottom and the top end surface of the base 2 for the sheet metal plate to be loaded horizontally. Then, the positioning rod 7 is released to allow the positioning rod 7 to fall automatically, and its bottom abuts against the top end surface of the sheet metal plate. At this time, its downward pressure on the sheet metal plate is in a non-forced limiting state (actually related to the thickness of the sheet metal plate), and has a certain longitudinal activity space. When the blade 4 is pressed down for cutting, the sheet metal workpiece located on one side of the positioning plate will flip up. After flipping up to a certain extent, the travel between the strip hole 71 of the positioning rod 7 and the bolt is limited, and the sheet metal plate will be forced to limit the positioning rod 7, which also helps to prevent the sheet metal plate from quickly flipping over during cutting, causing safety hazards in the operation. In addition, the positioning rod 7 also plays a role in pre-fixing the sheet metal plate after loading, which helps the tooling of the sheet metal plate to be completed more conveniently.

[0038] In addition, a set of corresponding transverse through holes are respectively provided on the blade 4 and the extension frame 11. Figure 4 As shown, this group of transverse through holes together constitute a locking point b. After the operation is completed, the angle of the blade 4 can be adjusted to align the reorganized transverse through holes, and then pins are manually inserted to form a limit structure to form a safety lock to avoid accidental touch causing the blade 4 to move downward, further reducing the safety risks of the operation.

[0039] Example 2: Based on Example 1, Figure 5 As shown, the pedal 61 is provided with anti-skid grooves 62, which can greatly increase the operating friction of the top end surface of the pedal 61, improve the stability and reliability when pedaling, and reduce the slipping phenomenon after pedaling force.

[0040] Embodiment 3: Based on Embodiment 1, Figure 6 As shown, a clamping block 72 is provided on the inner side wall of the positioning rod 7, and a top block 32 adapted to the clamping block 72 is provided on the outer side wall of the blade 4. When the top block 32 follows the blade 4 upward, the positioning rod 7 can be lifted by the clamping block 72. This structure enables the lifting operation of the positioning rod 7 to be automatically completed when the pressure rod 31 is turned up during the cutting process, which facilitates the unloading operation of the sheet metal plate.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sheet metal cutting mechanism, characterized in that: The invention comprises a main body (1), wherein a "7"-shaped extension frame (11) is provided on the top of the main body (1), a sinking platform (12) is provided on the main body (1) below the extension frame (11), a base (2) is provided inside the sinking platform (12), a blade (4) is provided above the base (2), a connecting joint (3) is provided on the top of the blade (4), the blade (4) and the connecting joint (3) are respectively pivotally connected to the extension frame (11) at one end away from the base (2), and the pivot axes are both arranged horizontally, and the blade (4) is provided with a plurality of connecting joints (3). 4) is arranged offset from the base (2), and after the blade (4) is flipped around its pivot point, the blade (4) and the adjacent side end surfaces of the base (2) form a tightly fitting cutting working surface, the connecting joint (3) is pivotally connected to a vertical rod (6), and a pedal (61) is arranged at the bottom of the vertical rod (6), and a positioning rod (7) is arranged on the side of the base (2) away from the blade (4), the top of the positioning rod (7) is connected to the side wall of the extension frame (11), and the bottom of the positioning rod (7) is provided with a positioning and holding structure for holding the sheet metal plate during the cutting process.

2. A sheet metal cutting mechanism according to claim 1, characterized in that: The bottom of the main body (1) is provided with a mounting portion (13), and the mounting portion (13) is provided with a longitudinal through hole structure for installing bolts.

3. A sheet metal cutting mechanism according to claim 1, characterized in that: The top of the base (2) is a horizontal end surface structure, and the base (2) is connected to the side wall of the sinking platform (12) via transversely assembled bolts.

4. A sheet metal cutting mechanism according to claim 1, characterized in that: The connecting joint (3) is a "V"-shaped structure, and its inner corner is an obtuse angle. After installation, its inner corner is arranged upward.

5. A sheet metal cutting mechanism according to claim 4, characterized in that: A connecting curved plate (5) with a "C"-shaped structure is provided between the connecting joint (3) and the blade (4); the upper and lower ends of the connecting curved plate (5) are respectively pivotally connected to the connecting joint (3) and the blade (4) via transversely assembled bolts.

6. A sheet metal cutting mechanism according to claim 4, characterized in that: The top of the outer end of the connecting joint (3) is connected to a pressure rod (31), and the vertical rod (6) is pivotally connected to the outer end of the pressure rod (31).

7. A sheet metal cutting mechanism according to claim 6, characterized in that: The vertical rod (6) is an "L"-shaped structure, and the horizontal section at the bottom thereof constitutes the pedal (61). A rib plate is provided at the corner where the pedal (61) is connected to the vertical section of the vertical rod (6).

8. A sheet metal cutting mechanism according to claim 7, characterized in that: The pedal (61) is provided with anti-skid patterns (62).

9. A sheet metal cutting mechanism according to claim 1, characterized in that: The top of the positioning rod (7) is provided with a longitudinal strip hole (71), and the strip hole (71) is connected to the extension frame (11) through a transversely assembled bolt, and the connection position constitutes a lifting limit point (c) of the positioning rod (7). The inner wall of the positioning rod (7) is provided with a clamping block (72), and the outer wall of the blade (4) is provided with a top block (32) adapted to the clamping block (72), and when the top block (32) follows the blade (4) to move upward, it can lift the positioning rod (7) with the help of the clamping block (72).

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