Rotary cutting type punching pliers

Abstract

The utility model discloses a rotary cutting type punching clamp which comprises clamp arms and a handle, one clamp arm is provided with a tool bit, the tool bit is connected to the clamp arm through a sliding seat, and the tool bit rotates synchronously when ascending and descending along the sliding seat. In the downward-pressing punching process, the tool bit can rotate, the effect of cutting while rotating is achieved, and compared with a vertical cutting mode in the prior art, the cutting force is larger, time and labor are saved, the punching effect is greatly improved, and the punching efficiency is higher.

Description

Technical Field

[0001] The utility model relates to a punching pliers, in particular to a rotary cutting type punching pliers. Background Art

[0002] Punching pliers are a commonly used punching tool. They include two mutually pivoted pliers arms, one of which is equipped with a cutter head and the other is equipped with a pad. By manually holding the two pliers handles to drive the two arms to be pressed and opened, the cutter head applies punching pressure to the object to be punched (such as belts, paper, metal plates, etc.) to complete the punching action.

[0003] At present, punching pliers mainly adopt the vertical punching method when punching, relying on great force and the sharpness of the blade to punch through the object. When punching tougher and thicker materials, it often requires strong force to punch holes, which is very laborious. Sometimes, insufficient force by the operator may result in failure to punch through, affecting the punching quality and efficiency. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a rotary cutting punching pliers with labor-saving operation and high punching efficiency.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: a rotary cutting punching pliers, including a pliers arm and a handle, wherein one of the pliers arms is provided with a cutter head, and the cutter head is connected to the pliers arm through a sliding seat, and the cutter head rotates synchronously when it is raised and lowered along the sliding seat.

[0006] As a preferred technical solution, a receiving cavity is provided in the sliding seat, and the tail end of the cutter head is slidably installed in the sliding seat.

[0007] As a preferred technical solution, the surface of the sliding seat is provided with an arc-shaped track, and the outer surface of the cutter head is provided with a slider that slides into the arc-shaped track.

[0008] As a preferred technical solution, the angle between the extension direction of the arc track and the rotation axis of the cutter head gradually decreases along the direction in which the cutter head is pressed down.

[0009] As a preferred technical solution, a reset member is provided between the sliding seat and the tail end of the cutter head in the accommodating cavity.

[0010] As a preferred technical solution, the reset member is a reset spring, one end of the reset spring abuts against the tail end of the cutter head, and the other end of the reset spring abuts against the sliding seat.

[0011] As a preferred technical solution, at least two pairs of the arc-shaped tracks and the sliders are provided and distributed around the sliding seat.

[0012] As a preferred technical solution, the cutter head includes a cutter head seat and a cutter head component. The cutter head seat is detachably fixedly connected to the cutter head component, and the cutter head seat is connected to the sliding seat.

[0013] As a preferred technical solution, the sliding seat includes a sliding column connected to the clamp arm, and one end of the sliding column away from the cutter head is threadedly connected to a cap, and the sliding column and the cap cooperate to enclose the accommodating cavity.

[0014] As a preferred technical solution, a mounting hole is provided on the clamp arm, and the sliding seat is fixed in the mounting hole.

[0015] Due to the adoption of the above technical solution, the beneficial effect of the utility model is that the cutter head of the utility model can rotate during the downward pressing and punching process, achieving the effect of cutting while rotating. Compared with the vertical cutting method in the prior art, its cutting force is greater, time and labor are saved, the punching effect is greatly improved, and the punching efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following drawings are only intended to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0018] Figure 2 This is a structural diagram of the sliding seat and the cutter head in an embodiment of the utility model;

[0019] Figure 3 It is a side view of the sliding seat and the cutter head of the embodiment of the utility model;

[0020] Figure 4 This is a cross-sectional view of the sliding seat and the cutter head of an embodiment of the utility model;

[0021] In the figure: 1-upper clamp arm; 2-lower clamp arm; 3-cutter head; 31-slider; 32-cutter head seat; 33-cutter head member; 4-pad; 5-sliding seat; 51-accommodating chamber; 52-arc track; 53-sliding column; 54-cover cap; 6-reset spring. DETAILED DESCRIPTION

[0022] The present invention is further described below with reference to the accompanying drawings and examples. In the detailed description that follows, certain exemplary embodiments of the present invention are described by way of illustration only. It goes without saying that those skilled in the art will recognize that the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and are not intended to limit the scope of the claims.

[0023] like Figures 1 to 4 As shown, a rotary cutting punching pliers includes a pliers arm and a handle. The pliers arm includes an upper pliers arm 1 and a lower pliers arm 2. The upper pliers arm 1 is provided with a cutter head 3, and the lower pliers arm 2 is correspondingly provided with a pad 4. The head end (cutting edge end) of the cutter head 3 is correspondingly arranged toward the pad 4, which is basically the same as the punching pliers structure in the prior art.

[0024] like Figures 1 to 4 As shown, this embodiment improves the mounting structure at the tail end of the cutter head 3. The tail end of the cutter head 3 is connected to the upper clamp arm 1 via a sliding seat 5. The tail end of the cutter head 3 is arranged to rise and fall and rotate along the sliding seat 5. The cutter head 3 rotates synchronously when it rises and falls along the sliding seat 5. The cutter head 3 of the utility model can rotate during the downward punching process, achieving a rotating and cutting effect. Compared with the prior art method of only cutting vertically, the cutting force is greater, time and labor are saved, the punching effect is greatly improved, and the punching efficiency is higher.

[0025] See also Figure 1 and Figure 4 The upper clamp arm 1 is provided with a mounting hole, and the sliding seat 5 can be fixed in the mounting hole by welding the bracket. The sliding seat 5 serves as the mounting base of the cutter head 3. The sliding seat 5 is provided with an accommodating cavity 51. The tail end of the cutter head 3 is slidably installed in the sliding seat 5, and the tail end of the cutter head 3 can be lifted, lowered, and rotated in the accommodating cavity 51.

[0026] See also Figure 2 and Figure 3 The surface of the sliding seat 5 is provided with an arcuate track 52, and the outer surface of the cutter head 3 is provided with a slider 31 that slides into the arcuate track 52. The arcuate track 52 and the slider 31 are adapted to slide in cooperation. The slider 31 is fixed to the cutter head 3. The sliding cooperation between the slider 31 and the arcuate track 52 can force the cutter head 3 to rotate synchronously when it is raised or lowered. In this embodiment, the arcuate track 52 and the slider 31 are provided in two pairs and are distributed around the sliding seat 5. Of course, the number of the arcuate track 52 and the slider 31 is not limited to two pairs, and can be adapted to three or four pairs.

[0027] See also Figure 3 The angle between the extension direction of the arc track 52 and the rotation axis of the cutter head 3 gradually decreases along the pressing and falling direction of the cutter head 3, that is, Figure 3 The angle shown in the figure gradually decreases from top to bottom. During the punching process of the object, the cutting force of the rotating blade head 3 gradually increases.

[0028] See also Figure 4A reset member is provided between the sliding seat 5 and the tail end of the cutter head 3 in the accommodating cavity 51 to move the cutter head 3 away from the sliding seat 5. The reset member is a reset spring 6, one end of which abuts against the tail end of the cutter head 3, and the other end of which abuts against the inside of the sliding seat 5.

[0029] The working principle of this embodiment is:

[0030] During use, the object to be pierced is first placed above the pad 4 of the lower clamp arm 2. The clamp handle is then pressed, driving the upper clamp arm 1 and the cutter head 3 downward to contact the object. Once the tip of the cutter head 3 contacts the object, the lower clamp arm 2 is pressed further, causing the cutter head 3 to continue to descend, gradually retracting the tail end of the cutter head 3 into the sliding seat 5. The cutter head 3 is then forced along the curved track 52 by the slider 31, allowing the cutter head 3 to rotate and cut while drilling. After drilling is completed, the upper clamp arm 1 returns upward, and the return spring 6 pushes the cutter head 3 out to return to its initial position. The coordinated design of the slider 31 and the curved track 52 allows the cutter head 3 to achieve a purely mechanical rotation-and-cutting operation, resulting in a compact structure and ingenious design.

[0031] See also Figure 4 The cutter head 3 includes a cutter head seat 32 and a cutter head component 33. The cutter head seat 32 and the cutter head component 33 are detachably fixedly connected. The cutter head seat 32 is connected to the sliding seat 5. The cutter head component 33 and the cutter head seat 32 can be fixed by threaded connection or extruded by a rubber gasket. The cutting edge is provided at the bottom end of the cutter head component 33.

[0032] The sliding seat 5 includes a sliding column 53 connected to the upper clamp arm 1, and the end of the sliding column 53 away from the cutter head 3 is threadedly connected to a cap 54. The sliding column 53 and the cap 54 cooperate to enclose the accommodating cavity 51, and the cap 54 is threadedly connected to the top end of the sliding column 53 to limit the reset spring 6 and install it in the accommodating cavity 51.

[0033] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A rotary cutting punching pliers comprising a pliers arm and a handle, wherein one of the pliers arms is provided with a cutting head, characterized in that: The cutter head is connected to the clamp arm through a sliding seat, and the cutter head rotates synchronously when it rises and falls along the sliding seat.

2. The rotary cutting punch according to claim 1, characterized in that: An accommodating cavity is provided in the sliding seat, and the tail end of the cutter head is slidably installed in the sliding seat.

3. The rotary cutting punch according to claim 2, characterized in that: An arc track is provided on the surface of the sliding seat, and a sliding block is provided on the outer surface of the cutter head which slides and extends into the arc track.

4. The rotary cutting punch according to claim 3, characterized in that: The angle between the extension direction of the arc track and the rotation axis of the cutter head gradually decreases along the pressing and falling direction of the cutter head.

5. The rotary cutting punch according to claim 2, characterized in that: A reset member is provided between the sliding seat and the tail end of the cutter head in the accommodating cavity.

6. The rotary cutting punch according to claim 5, characterized in that: The reset member is a reset spring, one end of the reset spring abuts against the tail end of the cutter head, and the other end of the reset spring abuts against the sliding seat.

7. The rotary cutting punch according to claim 3, characterized in that: At least two pairs of the arc-shaped rails and the sliding blocks are provided and are distributed around the sliding seat.

8. The rotary cutting punch according to claim 1, characterized in that: The cutter head comprises a cutter head seat and a cutter head component. The cutter head seat is detachably fixedly connected to the cutter head component, and the cutter head seat is connected to the sliding seat.

9. The rotary cutting punch according to claim 2, characterized in that: The sliding seat includes a sliding column connected to the clamp arm, and one end of the sliding column away from the cutter head is threadedly connected to a cap, and the sliding column and the cap cooperate to enclose the accommodating cavity.

10. The rotary cutting punch according to any one of claims 1 to 9, characterized in that: The clamp arm is provided with a mounting hole, and the sliding seat is fixed in the mounting hole.

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