A small pitch hole saw with a quick-change adapter structure

Abstract

The utility model discloses a small pitch hole saw with a quick-change adapter engaging structure, including a mounting plate, a hole saw device is arranged on the mounting plate, and the hole saw device includes: a hole saw assembly, the hole saw assembly includes a plurality of groups of threaded rods rotatably arranged inside an adjustment slot, a bevel gear set is fixedly arranged at the end of the threaded rod, a hole saw plate is threadedly sleeved on the threaded rod, a storage slot is provided on the hole saw plate, and an extension plate is slidably arranged inside the storage slot. The utility model relates to the technical field of hole saws. The threaded rod is driven to rotate by rotating the adjusting nut A at the end of the adjusting rod, and the threaded rod is driven to rotate by the bevel gear set at the end of the threaded rod, thereby driving the hole saw plate on the threaded rod to move, and the extension plate is positioned by the fixed nut on the moving rod, so as to adjust the diameter of the hole saw, thereby improving its applicability.

Description

Technical Field

[0001] The utility model relates to the technical field of hole saws, in particular to a small-pitch hole saw with a quick-change adapter clamping structure. Background Art

[0002] The hole saw can cut all machinable metals including stainless steel, wood, nailed wood, plastic, chemical fiber glass, drywall, fiberboard and composite materials, etc., solving the inconvenience of punching holes in the board and the shortcomings of irregular holes.

[0003] A highly wear-resistant and small-pitch hole saw disclosed in a patent application with reference publication number CN215746599U, the utility model moves and squeezes a rubber bag through support ring 2, so that the moisture inside the rubber bag is sprayed out to cool the hole saw cylinder. During the operation of the hole saw cylinder, the hole saw cylinder moves downward along the workpiece, and the workpiece squeezes the support block. The support block is squeezed and moves to drive support ring 2 to move. The movement of support ring 2 squeezes the rubber bag, so that the moisture inside the rubber bag is sprayed out through the nozzle, and then water is added to cool the contact position between the workpiece and the hole saw cylinder, which solves the problem of lack of convenient water adding and cooling function, which makes it inconvenient to add water and cool the hole saw cylinder during use, and easily causes the hole saw cylinder to be damaged by high temperature.

[0004] However, since the size of the hole saw is relatively fixed, its size cannot be adjusted according to demand, resulting in its low applicability and affecting its work efficiency. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a small-pitch hole saw with a quick-change adapter engaging structure, which solves the problem that its size cannot be adjusted according to demand, resulting in low applicability and affecting its working efficiency.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a small pitch hole saw with a quick-change adapter engaging structure, comprising a mounting plate, an adjustment slot is provided on the mounting plate, a hole saw device is provided on the mounting plate, and the hole saw device comprises:

[0007] A hole saw assembly is slidably arranged in an adjustment slot for cutting products, the hole saw assembly includes a plurality of groups of threaded rods rotatably arranged inside the adjustment slot, a bevel gear set is fixedly arranged at the end of the threaded rod, a hole saw plate is threadedly sleeved on the threaded rod, a receiving slot is provided on the hole saw plate, an extension plate is slidably arranged inside the receiving slot, an adjustment slot is provided on the hole saw plate, a moving rod is fixedly arranged on the extension plate, a fixing nut is rotatably arranged on the moving rod, a bevel gear A is fixedly arranged at the end of the threaded rod on one side, a bevel gear B is meshed and connected on the bevel gear A, an adjusting rod is fixedly arranged on the bevel gear B, and an adjusting nut A is fixedly arranged at the end of the adjusting rod;

[0008] The clamping assembly is arranged above the mounting plate and is used for connecting with the motor.

[0009] Preferably, the locking assembly includes a cylinder fixedly mounted on a mounting plate, a movable groove being formed on the cylinder, limit plates being fixedly mounted on the mounting plates on both sides of the cylinder, a bidirectional threaded rod being rotatably mounted on the limit plates, an arc-shaped fixing plate being slidably mounted inside the cylinder, and a connecting block being threadedly mounted on the bidirectional threaded rod being fixedly mounted on the arc-shaped fixing plate.

[0010] Preferably, an adjusting nut B is fixedly provided at the end of the bidirectional threaded rod.

[0011] Preferably, a protective rubber pad is fixedly provided on the arc-shaped fixing plate.

[0012] Preferably, a slice is fixedly provided on the bottom of the extension plate.

[0013] Preferably, a positioning drill bit is fixedly provided on the mounting plate.

[0014] Beneficial Effects

[0015] The utility model provides a small pitch hole saw with a quick-change adapter engaging structure. Compared with the prior art, it has the following beneficial effects:

[0016] (1) The small-pitch hole saw with a quick-change adapter structure drives the threaded rod to rotate by rotating the adjusting nut A at the end of the adjusting rod, and at the same time drives the threaded rod to rotate by the bevel gear set at the end of the threaded rod, thereby driving the hole saw plate on the threaded rod to move. When the hole saw plate moves to a suitable position, the extension plate is driven to move by the moving rod, and the extension plate is positioned by the fixing nut on the moving rod, thereby adjusting the diameter of the hole saw, thereby improving its applicability. At the same time, when no adjustment is required, the hole saw plate and the extension plate cooperate to improve its cutting efficiency.

[0017] (2) The small-pitch hole saw with a quick-change adapter engaging structure drives the bidirectional threaded rod to rotate through the adjusting nut B at the end of the bidirectional threaded rod, thereby adjusting the position of the arc-shaped fixing plate inside the cylinder, so that it can be fixed on motors of different sizes, thereby improving its applicability. At the same time, the protective rubber pad on the arc-shaped fixing plate increases the friction between the arc-shaped fixing plate and the output end of the motor, thereby ensuring its engaging quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 It is a bottom view of the utility model;

[0020] Figure 3 It is a top view of the utility model;

[0021] Figure 4 For this utility model Figure 2 A partial enlarged view of point A in the middle.

[0022] In the figure: 1. Mounting plate; 2. Adjustment slot; 3. Hole saw assembly; 31. Threaded rod; 32. Bevel gear set; 33. Hole saw plate; 34. Storage slot; 35. Extension plate; 36. Bevel gear A; 37. Bevel gear B; 38. Adjustment rod; 39. Adjustment nut A; 4. Clamping assembly; 41. Cylinder; 42. Limiting plate; 43. Bidirectional threaded rod; 44. Arc fixing plate; 5. Adjustment nut B; 6. Slice; 7. Positioning drill bit; 8. Adjustment slot; 9. Moving rod; 10. Fixing nut. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only 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.

[0024] The utility model provides two technical solutions:

[0025] Figure 1-4 The first embodiment is shown: a small pitch hole saw with a quick-change adapter engagement structure, including a mounting plate 1, an adjustment slot 2 is provided on the mounting plate 1, a hole saw device is provided on the mounting plate 1, and the hole saw device includes: a hole saw assembly 3, which is slidably arranged in the adjustment slot 2 for cutting the product, the hole saw assembly 3 includes a plurality of groups of threaded rods 31 rotatably arranged inside the adjustment slot 2, a bevel gear set 32 ​​is fixed at the end of the threaded rod 31, a hole saw plate 33 is threadedly sleeved on the threaded rod 31, a storage slot 34 is provided on the hole saw plate 33, and the storage slot 34 An extension plate 35 is provided for internal sliding, an adjustment slot 8 is provided on the hole saw plate 33, a moving rod 9 is fixedly provided on the extension plate 35, a fixing nut 10 is rotatably provided on the moving rod 9, a bevel gear A36 is fixedly provided at the end of the threaded rod 31 on one side, a bevel gear B37 is meshed with the bevel gear A36, an adjustment rod 38 is fixedly provided on the bevel gear B37, an adjustment nut A39 is fixedly provided at the end of the adjustment rod 38, a clamping assembly 4 is provided above the mounting plate 1 for connecting with the motor, and a slice 6 is fixedly provided at the bottom of the extension plate 35.

[0026] The adjusting nut A39 at the end of the adjusting rod 38 is rotated to drive the threaded rod 31 to rotate, and the bevel gear set 32 ​​at the end of the threaded rod 31 is used to drive the threaded rod 31 to rotate, thereby driving the hole saw plate 33 on the threaded rod 31 to move. When the hole saw plate 33 moves to a suitable position, the extension plate 35 is driven to move by the moving rod 8, and the extension plate 35 is positioned by the fixing nut 10 on the moving rod 8, so as to adjust the diameter of the hole saw, thereby improving its applicability. At the same time, when no adjustment is required, the hole saw plate 33 cooperates with the extension plate 35 to improve its cutting efficiency.

[0027] Figure 1-3 A second embodiment is shown, and its main difference from the first embodiment is that the locking assembly 4 includes a cylinder 41 fixedly arranged on the mounting plate 1, a movable groove is opened on the cylinder 41, and limit plates 42 are fixedly arranged on the mounting plates 1 on both sides of the cylinder 41, and a bidirectional threaded rod 43 is rotatably arranged on the limit plates 42, an arc-shaped fixing plate 44 is slidably arranged inside the cylinder 41, a connecting block threadedly sleeved on the bidirectional threaded rod 43 is fixedly arranged on the arc-shaped fixing plate 44, an adjusting nut B5 is fixedly arranged at the end of the bidirectional threaded rod 43, a protective rubber pad is fixedly arranged on the arc-shaped fixing plate 44, and a positioning drill bit 7 is fixedly arranged on the mounting plate 1.

[0028] The adjusting nut B5 at the end of the bidirectional threaded rod 43 is used to drive the bidirectional threaded rod 43 to rotate, thereby adjusting the position of the arc-shaped fixing plate 44 inside the cylinder 41, so that it can be fixed on motors of different sizes, thereby improving its applicability. At the same time, the protective rubber pad on the arc-shaped fixing plate 44 is used to increase the friction between the arc-shaped fixing plate 44 and the output end of the motor, thereby ensuring its clamping quality.

[0029] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0030] When in use, the adjusting nut B5 at the end of the bidirectional threaded rod 43 is used to drive the bidirectional threaded rod 43 to rotate, thereby adjusting the position of the arc-shaped fixed plate 44 inside the cylinder 41, so that it is fixed on the motor, and then the adjusting nut A39 at the end of the adjusting rod 38 is rotated to drive the threaded rod 31 to rotate. At the same time, the bevel gear set 32 ​​at the end of the threaded rod 31 drives the threaded rod 31 to rotate, thereby driving the hole saw plate 33 on the threaded rod 31 to move. When the hole saw plate 33 moves to a suitable position, the extension plate 35 is driven to move by the moving rod 8, and the extension plate 35 is positioned by the fixing nut 10 on the moving rod 8, thereby adjusting the diameter of the hole saw.

[0031] It should be noted 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. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fine pitch hole saw with a quick-change adapter engagement structure, comprising a mounting plate, characterized in that: The mounting plate is provided with an adjustment slot, and the mounting plate is provided with a hole saw device, the hole saw device comprising: A hole saw assembly is slidably arranged in an adjustment slot for cutting products, the hole saw assembly includes a plurality of groups of threaded rods rotatably arranged inside the adjustment slot, a bevel gear set is fixedly arranged at the end of the threaded rod, a hole saw plate is threadedly sleeved on the threaded rod, a receiving slot is provided on the hole saw plate, an extension plate is slidably arranged inside the receiving slot, an adjustment slot is provided on the hole saw plate, a moving rod is fixedly arranged on the extension plate, a fixing nut is rotatably arranged on the moving rod, a bevel gear A is fixedly arranged at the end of the threaded rod on one side, a bevel gear B is meshed and connected on the bevel gear A, an adjusting rod is fixedly arranged on the bevel gear B, and an adjusting nut A is fixedly arranged at the end of the adjusting rod; The clamping assembly is arranged above the mounting plate and is used for connecting with the motor.

2. A fine pitch hole saw with a quick-change adapter structure according to claim 1, characterized in that: The clamping assembly includes a cylinder fixedly arranged on a mounting plate, a movable groove is opened on the cylinder, and limit plates are fixedly arranged on the mounting plates on both sides of the cylinder, a bidirectional threaded rod is rotatably arranged on the limit plates, an arc-shaped fixed plate is slidably arranged inside the cylinder, and a connecting block threadedly sleeved on the bidirectional threaded rod is fixed on the arc-shaped fixed plate.

3. A fine pitch hole saw with a quick-change adapter structure according to claim 2, characterized in that: An adjusting nut B is fixedly provided at the end of the bidirectional threaded rod.

4. A fine pitch hole saw with a quick-change adapter structure according to claim 2, characterized in that: A protective rubber pad is fixedly arranged on the arc-shaped fixing plate.

5. The fine pitch hole saw with a quick-change adapter structure according to claim 1, characterized in that: A cut section is fixedly provided on the bottom of the extension plate.

6. The fine pitch hole saw with a quick-change adapter structure according to claim 1, characterized in that: A positioning drill bit is fixedly arranged on the mounting plate.

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