Hydraulic rivet cutting nippers

Abstract

The utility model relates to the field of rivet cutting tools, in particular to a pair of hydraulic rivet cutting pliers, which is characterized in that a first cutting blade and a second cutting blade which are oppositely arranged are arranged, and when a rivet is cut, the cutting edge of the second cutting blade extends into a gap between a rivet cap and a plate body of the rivet; and then the push rod of the power mechanism drives the first shearing piece to rotate in the direction close to the second shearing piece, and the cutting edge of the first shearing piece stretches into the position between the rivet cap and the plate body of the rivet till the rivet is sheared off. And compared with the scheme that the rivets are cut off through a grinding machine or a cutting machine in the prior art, use is convenient, and the shearing efficiency of the rivets is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to rivet shearing tool field, concretely relates to a hydraulic rivet shears. BACKGROUND

[0002] Rivets are used to connect two parts with holes, one end with a cap. In riveting, the parts to be riveted are connected by their own deformation or interference. After riveting, the rivet cap and the plate body are in close contact. But the rivet needs to be removed when riveting is wrong, and in the prior art, the rivet on the large device such as automobile is usually removed by grinding machine or cutting machine, which is inconvenient to use and has low shearing efficiency. SUMMARY

[0003] The utility model solves the technical scheme that technical problem it adopts: provide a kind of hydraulic rivet shears, including:

[0004] The output end of the power mechanism is rotatably connected with a first shear blade, and a second shear blade is fixedly connected to the power mechanism opposite to the first shear blade, the first shear blade and the second shear blade are both provided with a blade edge, when shearing the rivet, the tip of the blade edge extends between the rivet cap and the plate body, and the tips of the two blade edges are flush, and the power mechanism is used to drive the two blade edges to approach each other and shear the rivet;

[0005] The connecting block is rotatably connected with the first shear blade and the second shear blade.

[0006] Further, the blade edge includes a mounting portion, an arc portion and a close portion, the blade edge is connected with the first shear blade or the second shear blade through the mounting portion, when shearing the rivet, the close portion contacts the plate body, the arc portion contacts the rivet, and the included angle between the close portion and the plate body is 0°-10°.

[0007] Further, the arc portions of the two blade edges are oppositely arranged, and the arc portions of the two blade edges are recessed away from the center between the first shear blade and the second shear blade.

[0008] Further, the first shear blade and the second shear blade are respectively provided with a first semicircular hole and a second semicircular hole, and the first semicircular hole and the second semicircular hole are oppositely arranged.

[0009] Further, the connecting block is connected with a handle.

[0010] Further, the output end of the power mechanism is connected with a push rod, the push rod is connected with a connecting shaft, and the connecting shaft is connected with the rotating shaft of the first shear blade.

[0011] Further, the limiting sleeve connected with the second shearing piece comprises a connecting plate connected with the second shearing piece and a sleeve body sleeved on the connecting shaft and the rotating shaft, and the sleeve body limits the rotating shaft.

[0012] Further, the blade edge is made of hard tungsten steel alloy.

[0013] The utility model discloses beneficial effect is: through setting up the first shearing piece and the second shearing piece of relative setting, when rivet is sheared, first the blade edge of second shearing piece is inserted into the gap between the rivet cap and the plate body, and then the push rod of power mechanism drives the first shearing piece to rotate to the direction close to the second shearing piece, and the blade edge of first shearing piece is inserted into the rivet cap and the plate body until the rivet is cut off. Relative to the scheme that the rivet is cut off by the grinding machine or cutting machine in the prior art, convenient to use, improve the shearing efficiency of the rivet. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model discloses further illustrate below combining the drawing and embodiment.

[0015] In the drawing: Figure 1 It is the overall structure diagram of the hydraulic rivet shears provided by the utility model;

[0016] Figure 2 It is Figure 1 It is another perspective view of the hydraulic rivet shears shown in the drawing;

[0017] Figure 3 It is Figure 1 It is the partial sectional view of the hydraulic rivet shears shown in the drawing.

[0018] The figure mark explanation: 100, hydraulic rivet shears, 10, power mechanism, 11, first shearing piece, 111, blade edge, 1111, tip, 1112, mounting portion, 1113, arc portion, 1114, close portion, 112, first semicircular hole, 113, rotating shaft, 12, second shearing piece, 121, second semicircular hole, 13, push rod, 14, connecting shaft, 20, connecting block, 21, handle, 30, limiting sleeve, 31, connecting plate, 32, sleeve body. DETAILED DESCRIPTION

[0019] In order to make the technical problem, technical scheme and beneficial effect of the utility model to be solved more clearly, now combining the drawing to the utility model detailedly is explained. This drawing is the simplified schematic diagram, and only with the way of illustration to illustrate the basic of the utility model, therefore it only shows the constitution related with the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making the creative labor are within the scope of the utility model protection.

[0020] Please refer to Figure 1 、 Figure 2 and Figure 3 , the utility model discloses a hydraulic rivet nippers 100, including power mechanism 10 and connecting block 20, specifically, the power mechanism 10 of the embodiment adopts the hydraulic tool as shown in figure 6 in the Chinese utility model patent of announcement number CN213002255U.Further, the output end of power mechanism 10 is connected with push rod 13, push rod 13 is connected with connecting shaft 14, and connecting shaft 14 is connected with the rotating shaft 113 of first shear blade 11.

[0021] The output end of power mechanism 10 is rotatably connected with first shear blade 11, and the outer shell of power mechanism 10 is fixedly connected with second shear blade 12 arranged opposite to first shear blade 11, and first shear blade 11 and second shear blade 12 are both provided with blade edge 111, when shearing rivet, the tip 1111 of blade edge 111 extends into the rivet cap and the plate body, and the tips 1111 of the two blade edges 111 are flush, so that the spacing between the two blade edges 111 and the plate body is the same when shearing, reducing the wear of the plate body. Power mechanism 10 is used to drive the two blade edges 111 to approach each other and shear the rivet.

[0022] Connecting block 20 and first shear blade 11, second shear blade 12 are rotatably connected. Further, in the embodiment, connecting block 20 and first shear blade 11, second shear blade 12 are rotatably connected through pin shaft.

[0023] Blade edge 111 includes mounting portion 1112, arc portion 1113 and close portion 1114, blade edge 111 is connected with first shear blade 11 or second shear blade 12 through mounting portion 1112, when shearing rivet, close portion 1114 contacts with the plate body, arc portion 1113 contacts with the rivet, and the included angle between close portion 1114 and the plate body is 0°-10°. Specifically, in the embodiment, mounting portion 1112 and first shear blade 11 or second shear blade 12 are fixedly connected through elastic cylindrical pin.

[0024] The arc portions 1113 of the two blade edges 111 are oppositely arranged, and the arc portions 1113 of the two blade edges 111 are both recessed away from the center between first shear blade 11 and second shear blade 12.

[0025] When shearing the rivet, second shear blade 12 is in a stationary state relative to power mechanism 10, first shear blade 11 rotates relative to power mechanism 10, while the connecting portion of connecting block 20 and first shear blade 11 is movable relative to power mechanism 10, and the connecting portion of connecting block 20 and second shear blade 12 is fixed relative to the position of power mechanism 10.

[0026] When the rivet is sheared, the cutting edge 111 of the second shear blade 12 is first inserted into the gap between the rivet cap and the plate body of the rivet, and then the rotating shaft 113 of the first shear blade 11 is driven to move by the push rod 13 of the power mechanism 10, while the connecting block 20 limits the rotation range of the first shear blade 11, so that the first shear blade 11 rotates towards the second shear blade 12, the cutting edge 111 of the first shear blade 11 is inserted into the gap between the rivet cap and the plate body of the rivet until the rivet is sheared. Compared with the prior art scheme of cutting off the rivet by a sander or a cutting machine, the use is convenient, and the shearing efficiency of the rivet is improved.

[0027] Further, please refer to Figure 3 , the cutting edge 111 is an arc-shaped cutting edge 111. The tip 1111 is located at the lowest end of the arc-shaped surface of the cutting edge 111. The arc-shaped cutting edge 111 is arranged to facilitate the insertion of the cutting edge 111 into the gap between the rivet cap and the plate body of the rivet during shearing.

[0028] Further, the cutting edge 111 is made of hard tungsten steel alloy.

[0029] Further, please refer to Figure 2 , the connecting block 20 is connected with the handle 21. When the rivet is sheared, the user can hold the handle 21 to support the entire hydraulic rivet shear 100, thereby improving the stability of shearing the rivet.

[0030] Further, please refer to Figure 3 , the first shear blade 11 and the second shear blade 12 are respectively provided with a first semicircular hole 112 and a second semicircular hole 121, and the first semicircular hole 112 and the second semicircular hole 121 are arranged opposite to each other. The first semicircular hole 112 and the second semicircular hole 121 can reduce the overall weight of the hydraulic rivet shear 100, and facilitate the installation and accommodation of the handle 21.

[0031] Further, please refer to Figure 2 and Figure 3 , the hydraulic rivet shear 100 further comprises a limiting sleeve 30 connected with the second shear blade 12, the limiting sleeve 30 comprises a connecting plate 31 connected with the second shear blade 12, and a sleeve body 32 sleeved on the connecting shaft 14 and the rotating shaft 113, the sleeve body 32 limits the rotating shaft 113, thereby limiting the rotation range of the first shear blade 11, facilitating the final alignment of the first shear blade 11 and the second shear blade 12, and the tips 1111 of the cutting edges 111 on the first shear blade 11 and the second shear blade 12 are flush.

Claims

1. A hydraulic rivet shears comprising a power mechanism, characterized in that, The output end of the power mechanism (10) is rotatably connected with a first shear blade (11), and the power mechanism (10) is fixedly connected with a second shear blade (12) oppositely arranged with the first shear blade (11), the first shear blade (11) and the second shear blade (12) are both provided with a blade edge (111), when the rivet is sheared, the tip (1111) of the blade edge (111) extends into the rivet cap and the plate body, and the tips (1111) of the two blade edges (111) are flush, and the power mechanism (10) is used for driving the two blade edges (111) to approach each other and shear the rivet. A connecting block (20) is rotatably connected with the first shear blade (11) and the second shear blade (12). The blade edge (111) comprises a mounting portion (1112), an arc-shaped portion (1113) and a close-to-portion (1114), the blade edge (111) is connected with the first shear blade (11) or the second shear blade (12) through the mounting portion (1112), when the rivet is sheared, the close-to-portion (1114) contacts the plate body, the arc-shaped portion (1113) contacts the rivet, and the included angle between the close-to-portion (1114) and the plate body is 0°-10°.

2. The hydraulic rivet shearing tong according to claim 1, wherein: The arc-shaped portions (1113) of the two blade edges (111) are oppositely arranged, and the arc-shaped portions (1113) of the two blade edges (111) are both recessed away from the center between the first shear blade (11) and the second shear blade (12).

3. The hydraulic rivet shearing tong of claim 2, wherein: The first shear blade (11) and the second shear blade (12) are respectively provided with a first semicircular hole (112) and a second semicircular hole (121), and the first semicircular hole (112) and the second semicircular hole (121) are oppositely arranged.

4. The hydraulic rivet shearing tong of claim 1, wherein: The connecting block (20) is connected with a handle (21).

5. The hydraulic rivet shearing tong of claim 1, wherein: The output end of the power mechanism (10) is connected with a push rod (13), the push rod (13) is connected with a connecting shaft (14), and the connecting shaft (14) is connected with the rotating shaft (113) of the first shear blade (11).

6. The hydraulic rivet shearing tong of claim 1, wherein: A limiting sleeve (30) connected with the second shear blade (12) is further included, the limiting sleeve (30) comprises a connecting plate (31) connected with the second shear blade (12), and a sleeve body (32) sleeved on the connecting shaft (14) and the rotating shaft (113), and the sleeve body (32) limits the rotating shaft (113).

7. The hydraulic rivet shearing tong of claim 6, wherein: The blade edge (111) is made of hard tungsten steel alloy.

8. The hydraulic rivet shearing tong of claim 1, wherein: ​

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