Notch punching mechanism

Abstract

The utility model relates to a notch blanking mechanism, which comprises a lower frame, an upper jacking device arranged on the lower frame, an upper frame and a blanking device arranged on the upper frame, and the blanking device comprises a pressing cylinder vertically arranged on the upper frame and a punching needle in transmission connection with a piston rod of the pressing cylinder. The upper rack is erected above the lower rack, the blanking device and the jacking device are oppositely arranged, a mounting plate is mounted at the upper end of the lower rack, a positioning needle and a forward pushing air cylinder are arranged on the mounting plate, the forward pushing air cylinder is horizontally mounted on the mounting plate, a piston rod of the forward pushing air cylinder is coaxially and fixedly connected with the positioning needle, and the piston rod of the forward pushing air cylinder is coaxially and fixedly connected with the positioning needle. And the axis of the positioning needle is vertically intersected with the axis of the punching needle. The notch punching mechanism can play a good role in fixing an umbrella rod, the size precision is improved, the height of the punching needle can be freely adjusted, and notches with different depths can be punched according to requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of punching equipment, in particular to a punching notch mechanism. Background Art

[0002] In industries that require cutting and processing, such as steel furniture, building scaffolding, decoration and umbrellas, it is usually necessary to punch out notches on the workpiece to be processed to facilitate welding and other operations. The existing punching mechanism includes a bottom template, a guide block and an upper module. The bottom template is provided with a fixed block, and a position for installing the workpiece is provided in the middle of the fixed block. The upper module is provided with a punching knife, and the upper module drives the punching knife to move up and down in the guide block to punch the workpiece. When using this punching die to punch the workpiece, the upper and lower mechanisms cannot play a good fixing role on the workpiece. For example, when punching a notch on an umbrella rod, the umbrella rod is easily offset due to the impact of the cutter, which leads to errors in the cutting size at the notch, which is not conducive to improving the processing quality. Utility Model Content

[0003] In order to overcome the technical defects of the prior art, the utility model provides a punching notch mechanism, which can play a good role in fixing the umbrella rod and improve the dimensional accuracy.

[0004] The technical solution adopted by the utility model is: a punching notch mechanism, including a lower frame, an upper push device arranged on the lower frame, an upper frame and a punching device arranged on the upper frame, the punching device including a downward pressure cylinder vertically installed on the upper frame and a punching needle transmission-connected to the piston rod of the downward pressure cylinder, the upper frame is arranged above the lower frame, the punching device and the upper push device are arranged opposite to each other, a mounting plate is installed on the upper end of the lower frame, a positioning needle and a forward push cylinder are provided on the mounting plate, the forward push cylinder is horizontally installed on the mounting plate, the piston rod of the forward push cylinder is coaxially fixed to the positioning needle, and the axis of the positioning needle intersects with the axis of the punching needle perpendicularly.

[0005] Preferably, an upper guide block is fixedly connected to the upper frame below the downward pressure cylinder, an upper guide hole is opened on the upper guide block, an upper slider is slidably fitted in the upper guide hole, the upper end of the upper slider is fixedly connected to the piston rod of the downward pressure cylinder, and the lower end of the upper slider is fixedly connected to the punch needle.

[0006] Preferably, the lifting device includes a lifting positioning cylinder fixedly mounted on the lower frame and a lifting block transmission-connected to the piston rod of the lifting positioning cylinder, the lower frame is provided with a through hole, the lifting block is inserted into the through hole, and the upper end of the lifting block is provided with a positioning step and a demoulding needle.

[0007] Preferably, a horizontal guide block cooperating with the positioning pin is fixedly connected to the upper end of the lower frame, and the positioning pin is penetrated through the horizontal guide block and slidably cooperates with the horizontal guide block.

[0008] Preferably, a limiting block is fixedly connected to the positioning needle, and the limiting block is placed between the horizontal guide block and the forward thrust cylinder.

[0009] Preferably, the lower frame includes a vertical plate, a base and a plurality of clamping members horizontally arranged on the top of the base, the lower end of the vertical plate is clamped on a clamping member through a rod body, and the lifting device is installed on the vertical plate.

[0010] The beneficial effects of the utility model are as follows: a punching notch mechanism of the utility model comprises a lower frame, a top device arranged on the lower frame, an upper frame and a punching device arranged on the upper frame, and also comprises a positioning needle and a forward push cylinder arranged on the upper end of the lower frame, the forward push cylinder is horizontally mounted on a mounting plate, the piston rod of the forward push cylinder is coaxially fixedly connected to the positioning needle, the axis of the positioning needle is perpendicularly intersected with the axis of the punching needle, when punching the umbrella rod, the umbrella rod is restricted in the horizontal direction by the positioning needle, and the umbrella rod can be effectively fixed in cooperation with the top device and the punching device, thereby improving the cutting accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of a punching notch mechanism of the utility model.

[0012] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.

[0013] Explanation of the reference numerals: 1. Lower frame; 101. Upper positioning cylinder; 102. Top block; 103. Through hole; 104. Vertical plate; 105. Base; 106. Clamp; 107. Positioning step; 108. Demolding needle; 109. Rod; 2. Upper frame; 201. Down-pressing cylinder; 202. Punch needle; 203. Upper guide block; 204. Upper guide hole; 205. Upper slide block; 3. Mounting plate; 301. Forward push cylinder; 302. Positioning needle; 3021. Groove; 303. Horizontal guide block; 304. Limit block. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0015] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0016] like Figure 1 and Figure 2 As shown, this embodiment provides a punching notch mechanism, including a lower frame 1, an upper push device arranged on the lower frame 1, an upper frame 2 and a punching device arranged on the upper frame 2, the punching device includes a downward pressure cylinder 201 vertically installed on the upper frame 2 and a punching needle 202 transmission-connected to the piston rod of the downward pressure cylinder 201, the upper frame 2 is mounted above the lower frame 1, the punching device and the upper push device are arranged opposite to each other, a mounting plate 3 is installed at the upper end of the lower frame 1, a positioning needle 302 and a forward push cylinder 301 are provided on the mounting plate 3, the forward push cylinder 301 is horizontally installed on the mounting plate 3, the piston rod of the forward push cylinder 301 is coaxially fixed to the positioning needle 302, the front end of the positioning needle 302 is provided with a groove 3021 with an opening facing upward, the axis of the positioning needle 302 is perpendicular to the axis of the punching needle 202.

[0017] In this embodiment, an upper guide block 203 is fixedly connected to the upper frame 2 below the downward pressure cylinder 201, and an upper guide hole 204 is opened on the upper guide block 203. An upper slider 205 is slidably fitted in the upper guide hole 204. The upper end of the upper slider 205 is fixedly connected to the piston rod of the downward pressure cylinder 201, and the lower end of the upper slider 205 is fixedly connected to the punching needle 202. When the punching operation is performed, the downward pressure cylinder 201 drives the punching needle 202 to be pressed downward, and the punching needle 202 forms a notch on the umbrella rod.

[0018] In this embodiment, the lifting device includes a lifting positioning cylinder 101 fixedly mounted on the lower frame 1 and a lifting block 102 connected to the piston rod of the lifting positioning cylinder 101 by transmission. The lower frame 1 is provided with a through hole 103, and the lifting block 102 is inserted into the through hole 103. The upper end of the lifting block 102 is provided with a positioning step 107 and a demoulding needle 108. When assembling the umbrella rod, the demoulding needle 108 and the positioning step 107 are used to position the umbrella rod. The demoulding needle 108 is installed on the lower frame 1 by a compression spring. On the top block 102, when punching is performed, the top block 102 and the demoulding needle 108 rise, the demoulding needle 108 abuts against the umbrella rod, and the compression spring is compressed at the same time, the downward pressure cylinder 201 drives the punching needle 202 to press down, and a notch with a slope is punched out on the umbrella rod. After the punching is completed, the punching needle 202 rises, and under the action of the elastic force of the compression spring, the demoulding needle 108 pushes the umbrella rod upward to prevent the notch after punching from pressing against the positioning needle 302 and making it unable to be retracted. Then the positioning needle 302 retreats under the drive of the forward push cylinder 301.

[0019] In this embodiment, a horizontal guide block 303 cooperating with the positioning pin 302 is fixedly connected to the upper end of the lower frame 1. The positioning pin 302 is inserted into the horizontal guide block 303 and slidably cooperates with it. A limit block 304 is fixedly connected to the positioning pin 302, and the limit block 304 is placed between the horizontal guide block 303 and the forward push cylinder 301. When performing the punching operation, the forward push cylinder 301 pushes the positioning pin 302 to insert the positioning pin 302 into the umbrella rod.

[0020] In this embodiment, the lower frame 1 includes a vertical plate 104, a base 105 and a plurality of clamping members 106 horizontally arranged on the top of the base 105. The lower end of the vertical plate 104 is clamped on a clamping member 106 through a rod 109, and the lifting device is installed on the vertical plate 104. By installing the vertical plate 104 on different clamping members 106 and adaptively adjusting the position of the upper frame 2, the lifting mechanism can be adjusted in position according to the size and shape of the umbrella stick.

[0021] When a punching notch mechanism of this embodiment is in operation, a worker holds an umbrella stick and places it on the upper end of the top block 102, then pushes the positioning pin 302 forward close to the umbrella stick, and the front end of the positioning pin 302 is inserted into the umbrella stick. The groove 3021 at the front end of the positioning pin 302 is aligned with the punching pin 202, and the worker cooperates to position the umbrella stick. The downward pressure cylinder 201 drives the punching pin 202 to press down, and the upper positioning cylinder 101 pushes the umbrella stick up. The punching pin 202 cooperates with the positioning pin 302 to leave a notch of a predetermined depth and shape on the umbrella stick. The height of the punching pin 202 of this embodiment can be freely adjusted to punch out notches of different depths according to needs. The structure for adjusting the height of the punching pin 202 adopts existing means in the field, which will not be repeated here.

[0022] The above shows and describes the basic principles and main features of the invention and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the invention, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.

Claims

1. A punching notch mechanism, characterized in that: It includes a lower frame, an upper push device arranged on the lower frame, an upper frame and a punching device arranged on the upper frame, the punching device includes a downward pressure cylinder vertically installed on the upper frame and a punching needle transmission-connected to the piston rod of the downward pressure cylinder, the upper frame is arranged above the lower frame, the punching device and the upper push device are arranged opposite to each other, a mounting plate is installed on the upper end of the lower frame, a positioning needle and a forward push cylinder are provided on the mounting plate, the forward push cylinder is horizontally installed on the mounting plate, the piston rod of the forward push cylinder is coaxially fixed to the positioning needle, and the axis of the positioning needle intersects with the axis of the punching needle perpendicularly.

2. A punching notch mechanism according to claim 1, characterized in that: An upper guide block is fixedly connected to the upper frame below the downward pressure cylinder, an upper guide block is provided with an upper guide hole, an upper slider is slidably fitted in the upper guide hole, the upper end of the upper slider is fixedly connected to the piston rod of the downward pressure cylinder, and the lower end of the upper slider is fixedly connected to the punch needle.

3. A punching notch mechanism according to claim 1, characterized in that: The lifting device includes a lifting positioning cylinder fixedly mounted on the lower frame and a lifting block drivingly connected to the piston rod of the lifting positioning cylinder. The lower frame is provided with a through hole, and the lifting block is inserted into the through hole. The upper end of the lifting block is provided with a positioning step and a demoulding needle.

4. A punching notch mechanism according to claim 1, characterized in that: A horizontal guide block cooperating with the positioning pin is fixedly connected to the upper end of the lower frame, and the positioning pin is penetrated through the horizontal guide block and slidably cooperated with the horizontal guide block.

5. A punching notch mechanism according to claim 4, characterized in that: A limiting block is fixedly connected to the positioning needle, and the limiting block is placed between the horizontal guide block and the forward push cylinder.

6. A punching notch mechanism according to claim 1, characterized in that: The lower frame includes a vertical plate, a base and a plurality of clamping members horizontally arranged on the top of the base. The lower end of the vertical plate is clamped on a clamping member through a rod body, and the lifting device is installed on the vertical plate.

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