Woodworking straight hole puncher

Abstract

The utility model relates to the field of machining tools, and particularly discloses a woodworking straight hole puncher which comprises a punching positioning plate and two clamping plates, a positioning hole is formed in the punching positioning plate, a bearing fixing groove is formed in the inner wall of the positioning hole, a plurality of bearings are arranged in the bearing fixing groove, and the peripheries of the bearings are fixedly connected with the inner wall of the bearing fixing groove. A positioning sleeve is fixedly connected to the inner wall of the bearing, an elastic piece is arranged on the inner wall of the positioning sleeve, a drill bit can be fixed through the elastic piece by arranging the elastic piece on the inner wall of the positioning sleeve, the positioning sleeve is fixed to the inner wall of the bearing, and the outer wall of the bearing is fixed to a bearing fixing groove in a punching positioning plate; and when the drill bit rotates, the bearing rotates synchronously, and the drilling operation cannot be influenced by fixing the drill bit.

Description

Technical Field

[0001] The utility model relates to the field of processing tools, in particular to a woodworking straight hole puncher. Background Art

[0002] The woodworking right-angle punch is a commonly used woodworking punching device. It is mainly used for positioning when woodworkers punch holes in the side of wood or boards to prevent holes from being skewed or slipping during punching, which may cause harm to the woodworker.

[0003] Existing hole punchers, such as a wooden board side hole punching locator with patent number CN212578809U, introduce a hole punching locator that is easy to fix. However, it is found in actual use that this type of hole puncher is used to set a locating hole for hole punching, but the locating hole cannot completely fit the drill bit, so the hole punched will still be crooked when the drill bit is used. Therefore, a new type of hole puncher is needed to solve this problem. Utility Model Content

[0004] The utility model is to solve the technical problems mentioned in the above background technology, and proposes the following technical solutions:

[0005] A woodworking straight hole puncher comprises a punching positioning plate and two clamping plates, wherein the punching positioning plate is provided with a positioning hole, the inner wall of the positioning hole is provided with a bearing fixing groove, a plurality of bearings are provided in the bearing fixing groove, the outer periphery of the bearing is fixedly connected to the inner wall of the bearing fixing groove, a positioning sleeve is fixedly connected to the inner wall of the bearing, and a spring piece is provided on the inner wall of the positioning sleeve.

[0006] A plurality of clamping plate positioning columns are symmetrically arranged on the left and right sides of the punching positioning plate, and a plurality of clamping plate positioning holes are arranged on the clamping plate, the number, size and position of the clamping plate positioning holes correspond to the number, size and position of the clamping plate positioning columns, and a plurality of the clamping plate positioning columns respectively pass through the plurality of the clamping plate positioning holes, one end of the clamping plate positioning column is connected to a limiting block, a threaded hole is arranged on the clamping plate, a screw is threadedly connected to the inner thread of the threaded hole, one end of the screw is connected to a fixing plate, the fixing plate is located between the two clamping plates, and the other end of the screw is connected to a rotating knob.

[0007] Preferably, the clamping plate positioning column is detachably connected to the limiting block.

[0008] Preferably, a rubber anti-slip pad is provided on one side of the fixing plate.

[0009] Preferably, a size mark is provided on one side of the positioning hole.

[0010] Preferably, the punched positioning plate is provided with a plurality of positioning holes with different radii, and the sizes of the plurality of positioning holes are arranged from left to right.

[0011] The beneficial effects of the utility model are:

[0012] 1. By setting a spring sheet on the inner wall of the positioning sleeve, the drill bit can be fixed by the spring sheet. By fixing the positioning sleeve to the inner wall of the bearing and fixing the outer wall of the bearing to the bearing fixing groove on the punching positioning plate, the bearing will rotate synchronously when the drill bit rotates, and the drilling operation will not be affected by fixing the drill bit.

[0013] 2. By setting a plurality of positioning holes with different radii on the positioning plate, drill bits of different sizes can be fixed through positioning holes of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a cross-sectional view of the utility model;

[0016] Figure 3 for Figure 2 Enlarged image of the middle circle;

[0017] Figure 4 This is a schematic diagram of the structure of the second embodiment of the utility model;

[0018] In the figure: 1. Punching positioning plate; 1-1. Positioning hole; 1-2. Bearing fixing groove; 2. Clamping plate; 2-1. Clamping plate positioning hole; 2-2. Threaded hole; 3. Bearing; 4. Positioning sleeve; 5. Spring piece; 6. Clamping plate positioning column; 7. Limit block; 8. Screw; 9. Fixing plate; 10. Turning knob; 11. Rubber anti-skid pad; 12. Size identification. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] In the description of the present utility model, it is necessary to understand that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The connection methods described in the terms "fixed connection" and "fixed setting" include but are not limited to "welding", "riveting", "adhesion", and "threaded connection". The terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements that are inherent to such process, method, article or device.

[0021] The directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0022] Embodiment 1

[0023] Reference Figure 1-3 A woodworking straight hole puncher includes a punching positioning plate 1 and two clamping plates 2. The punching positioning plate 1 is provided with a positioning hole 1-1, the inner wall of the positioning hole 1-1 is provided with a bearing fixing groove 1-2, a plurality of bearings 3 are provided in the bearing fixing groove 1-2, the outer periphery of the bearing 3 is fixedly connected to the inner wall of the bearing fixing groove 1-2, a positioning sleeve 4 is fixedly connected to the inner wall of the bearing 3, and a spring piece 5 is provided on the inner wall of the positioning sleeve 4.

[0024] A number of clamping plate positioning columns 6 are symmetrically arranged on the left and right sides of the punching positioning plate 1, and a number of clamping plate positioning holes 2-1 are arranged on the clamping plate 2. The number, size and position of the clamping plate positioning holes 2-1 correspond to the number, size and position of the clamping plate positioning columns 6. A number of clamping plate positioning columns 6 pass through the number of clamping plate positioning holes 2-1 respectively, and one end of the clamping plate positioning column 6 is connected to the limit block 7. A threaded hole 2-2 is arranged on the clamping plate 2, and the inner thread of the threaded hole 2-2 is connected to a screw 8. One end of the screw 8 is connected to a fixing plate 9, and the fixing plate 9 is located between the two clamping plates 2. The other end of the screw 8 is connected to a rotating knob 10.

[0025] Preferably, the clamping plate positioning column 6 and the limiting block 7 are detachably connected.

[0026] Preferably, a rubber anti-skid pad 11 is provided on one side of the fixing plate 9 .

[0027] Preferably, a size mark 12 is provided on one side of the positioning hole 1 - 1 .

[0028] During actual operation, the punching positioning plate 1 is placed on the wooden board, and the two clamping plates 2 are respectively placed on the left and right sides of the wooden board. Then, by turning the rotating knobs 10 on both sides, the position of the screw 8 is adjusted so that the two fixing plates 9 clamp the wooden board and fix it. Then, the drill bit is inserted from the positioning sleeve 4. At this time, the spring piece 5 located in the positioning sleeve 4 will clamp the drill bit. When the drill bit rotates to drill a hole, the bearing 3 connected to the outer periphery of the positioning sleeve 4 will rotate synchronously to prevent the drill bit from tilting during the drilling process, causing the drilled hole to become tilted.

[0029] Embodiment 2

[0030] Reference Figure 4 The difference between this embodiment and embodiment 1 is that a plurality of positioning holes 1-1 with different radii are provided on the punching positioning plate 1, and the positioning holes 1-1 are arranged from left to right according to the radius, and different sizes of drill bits can be adapted by using different positioning holes 1-1.

Claims

1. A woodworking straight hole puncher, comprising a punching positioning plate (1) and two clamping plates (2), characterized in that: The perforated positioning plate (1) is provided with a positioning hole (1-1), the inner wall of the positioning hole (1-1) is provided with a bearing fixing groove (1-2), a plurality of bearings (3) are provided in the bearing fixing groove (1-2), the outer periphery of the bearing (3) is fixedly connected to the inner wall of the bearing fixing groove (1-2), a positioning sleeve (4) is fixedly connected to the inner wall of the bearing (3), and a spring piece (5) is provided on the inner wall of the positioning sleeve (4); A plurality of clamping plate positioning columns (6) are symmetrically arranged on the left and right sides of the punching positioning plate (1); a plurality of clamping plate positioning holes (2-1) are arranged on the clamping plate (2); the number, size and position of the clamping plate positioning holes (2-1) correspond to the number, size and position of the clamping plate positioning columns (6); a plurality of the clamping plate positioning columns (6) respectively pass through the plurality of the clamping plate positioning holes (2-1); one end of the clamping plate positioning column (6) is connected to a limiting block (7); a threaded hole (2-2) is arranged on the clamping plate (2); a screw rod (8) is connected to the inner thread of the threaded hole (2-2); one end of the screw rod (8) is connected to a fixing plate (9); the fixing plate (9) is located between the two clamping plates (2); the other end of the screw rod (8) is connected to a rotating knob (10).

2. A woodworking straight hole punch according to claim 1, characterized in that: The clamping plate positioning column (6) is detachably connected to the limiting block (7).

3. A woodworking straight hole puncher according to claim 2, characterized in that: A rubber anti-slip pad (11) is provided on one side of the fixing plate (9).

4. A woodworking straight hole puncher according to claim 3, characterized in that: A size mark (12) is provided on one side of the positioning hole (1-1).

5. A woodworking straight hole puncher according to claim 1, characterized in that: The perforated positioning plate (1) is provided with a plurality of positioning holes (1-1) with different radii, and the plurality of positioning holes (1-1) are arranged in size from left to right.

Images