Bench drilling machine drill bit adjusting assembly

Abstract

The utility model discloses a bench drilling machine drill bit adjusting assembly which comprises a connecting part, and the bottom end of the connecting part is fixedly connected with an installation shell. A drill bit is arranged in the mounting shell, a mounting mechanism is arranged in the mounting shell, the mounting mechanism comprises a rotating ring, and the rotating ring is arranged outside the mounting shell in a sleeving mode; a plurality of elastic grooves are formed in the elastic clamping assembly and the mounting shell at equal intervals, the elastic clamping assembly is located in the elastic grooves, a plurality of clamping holes are formed in the pressing assembly and the rotating ring at equal intervals, and the pressing assembly is located in the clamping holes. The arrangement mode that the rotating ring, the elastic clamping assembly and the pressing assembly are matched is utilized, positioning of the elastic clamping assembly on the rotating ring is relieved through the pressing assembly, the rotating ring can be rotated, a positioning rod in the elastic clamping assembly is shrunk into an inclined groove formed in the rotating ring, and therefore the drill bit can slide; and positioning is completed through reverse operation, and operation is easy and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field related to drill bits, in particular to a drill bit adjustment component for a bench-type drilling machine. Background Art

[0002] A bench drilling machine, also known as a bench drill, is a small drilling machine that is suitable for placement on a workbench with a vertical spindle. The main purpose of a bench drilling machine is to perform drilling, reaming, boring, tapping, and scraping of small and medium-sized parts.

[0003] The drill bit of an existing benchtop drilling machine is usually used in conjunction with a corresponding drive device to drill holes in the workpiece. However, during the drilling process, since the drill bit is of fixed length, the drill bit needs to be replaced with a drill bit of different length when drilling holes of different depths. This is time-consuming and labor-intensive, and the original drill bit may be lost during the replacement, which is quite inconvenient. Summary of the Invention

[0004] The purpose of the present utility model is to provide a drill bit adjustment assembly for a bench-type drilling machine to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a drill bit adjustment assembly for a benchtop drilling machine, comprising a connecting portion, the bottom end of which is fixedly connected to a mounting housing;

[0006] A drill bit is provided inside the mounting shell, and a mounting mechanism is provided inside the mounting shell, and the mounting mechanism includes:

[0007] A rotating ring, the rotating ring being sleeved on the outside of the mounting housing;

[0008] An elastic clamping assembly, wherein a plurality of elastic grooves are equidistantly formed inside the mounting housing, and the elastic clamping assembly is located inside the elastic grooves for multi-point positioning of the drill bit;

[0009] A pressing assembly, wherein a plurality of latching holes are equidistantly opened inside the rotating ring, and the pressing assembly is located inside the latching holes.

[0010] Preferably, the elastic snap-fit assembly includes:

[0011] A positioning rod is slidably connected to both sides of the inner wall of the elastic groove, a plurality of positioning holes are equidistantly provided on the outer wall of the drill bit, one end of the positioning rod is slidably connected to the inner cavity of the positioning hole, and the other end of the positioning rod is slidably connected to the inner cavity of the clamping hole, and a plurality of oblique grooves are equidistantly provided on the inner wall of the rotating ring, and the positioning rod and the oblique grooves cooperate with each other;

[0012] An extrusion plate, the extrusion plate being located inside the elastic groove and fixedly interpenetratingly connected with the positioning rod;

[0013] A compression spring is sleeved on the outside of the positioning rod.

[0014] Preferably, one end of the compression spring is fixedly connected to the extrusion plate, and the other end of the compression spring is fixedly connected to the inner wall of the elastic groove.

[0015] Preferably, the outer wall of the mounting shell is provided with a plurality of arcuate grooves, the inner cavity of the arcuate grooves is slidably connected with a slider, the plurality of sliders are fixedly connected to the inner wall of the rotating ring, and the cross-sections of the sliders and the arcuate grooves are both T-shaped.

[0016] Preferably, the pressing assembly includes:

[0017] A pressing plate, the pressing plate being slidably interpenetratingly connected with the inner cavity of the clamping hole;

[0018] A pressing rod, one end of which is fixedly connected to the pressing plate, and the other end of which is fixedly connected to the inner wall of the clamping hole.

[0019] Preferably, the pressing component further includes:

[0020] The limiting blocks are fixedly connected to both sides of the pressing plate respectively, and limiting grooves are provided on both sides of the inner wall of the clamping hole, and the limiting blocks are slidably connected with the inner cavity of the limiting groove.

[0021] The technical effects and advantages of this utility model are:

[0022] The utility model utilizes a setting mode in which a rotating ring, an elastic clamping assembly and a pressing assembly are matched. The elastic clamping assembly is released from the positioning of the rotating ring by the pressing assembly, and the rotating ring can be rotated, so that the positioning rod in the elastic clamping assembly is retracted into the inclined groove opened by the rotating ring, so that the drill bit can be slid, and the positioning is completed by reverse operation. The operation is simple and can be adjusted by squeezing the pressing rod and rotating the rotating ring, avoiding the tedious operation of replacing the drill bit in the traditional construction process and improving the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0024] Figure 2 This is a schematic diagram of the overall front internal structure of the utility model.

[0025] Figure 3 For this utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0026] Figure 4 This is a schematic diagram of the internal structure of the installation mechanism of the utility model viewed from above.

[0027] Figure 5 This is a schematic diagram of the internal structure of the slider of the utility model when viewed from above.

[0028] In the figure: 1. Connecting part; 2. Mounting shell; 3. Drill bit; 4. Mounting mechanism; 41. Rotating ring; 42. Elastic clamping assembly; 421. Positioning rod; 422. Extrusion plate; 423. Compression spring; 43. Pressing assembly; 431. Pressing plate; 432. Pressing rod; 433. Limiting block; 5. Slider. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] The utility model provides Figure 1-5 The drill bit adjustment assembly for a benchtop drilling machine shown in FIG. includes a connecting portion 1, the bottom end of which is fixedly connected to a mounting housing 2. The connecting portion 1 is used to connect to a drive device on the benchtop drilling machine, thereby driving a drill bit 3 mounted inside the mounting housing 2 to rotate, thereby achieving a drilling operation on a workpiece.

[0031] Furthermore, a drill bit 3 is provided inside the mounting shell 2, and a mounting mechanism 4 is provided inside the mounting shell 2. The mounting mechanism 4 includes: a rotating ring 41, an elastic clamping assembly 42 and a pressing assembly 43. The rotating ring 41 is sleeved on the outside of the mounting shell 2; a plurality of elastic grooves are equidistantly provided inside the mounting shell 2, and the elastic clamping assembly 42 is located inside the elastic groove for multi-point positioning of the drill bit 3; a plurality of clamping holes are equidistantly provided inside the rotating ring 41, and the pressing assembly 43 is located inside the clamping hole.

[0032] Specifically, the elastic clamping assembly 42 includes: a positioning rod 421, an extrusion plate 422 and a compression spring 423. The positioning rod 421 is slidably inserted and connected with both sides of the inner wall of the elastic groove. The outer wall of the drill bit 3 is equidistantly provided with a plurality of positioning holes. One end of the positioning rod 421 is slidably inserted and connected with the inner cavity of the positioning hole. The other end of the positioning rod 421 is slidably inserted and connected with the inner cavity of the clamping hole. The inner wall of the rotating ring 41 is equidistantly provided with a plurality of oblique grooves. The positioning rod 421 cooperates with the oblique grooves. The positioning rod 421 can not only be inserted into the interior of the positioning hole to fix the drill bit 3 at different extension lengths, but also can position the rotating ring 41. The centrifugal force also makes the engagement between the positioning rod 421 and the rotating ring 41 more stable. To cancel the engagement, the pressing assembly 43 is simply used to push the positioning rod 421 so that the positioning rod 421 is disengaged from the engagement hole. The rotating ring 41 can then be rotated so that the inclined groove of the rotating ring 41 and the positioning rod 421 are aligned. Under the elastic force of the compression spring 423, the positioning rod 421 can extend into the inclined groove and disengage from the positioning hole, thereby allowing the drill bit 3 to be slidably adjusted in length. The extrusion plate 422 is located within the elastic groove and is fixedly interlocked with the positioning rod 421. The compression spring 423 is sleeved on the outside of the positioning rod 421. One end of the compression spring 423 is fixedly connected to the extrusion plate 422, and the other end of the compression spring 423 is fixedly connected to the inner wall of the elastic groove. The compression spring 423 is always in a compressed state, thereby providing a stable elastic force on the positioning rod 421 through the extrusion plate 422, so that the positioning rod 421 can be closely attached to the inner wall of the rotating ring 41.

[0033] Furthermore, a plurality of arc-shaped grooves are provided on the outer wall of the mounting shell 2, and a slider 5 is slidably inserted into the inner cavity of the arc-shaped groove. The plurality of sliders 5 are fixedly connected to the inner wall of the rotating ring 41. The cross-sections of the slider 5 and the arc-shaped groove are both T-shaped. The arc-shaped groove serves to limit the rotation of the rotating ring 41, so that the rotating ring 41 can only rotate along the arc-shaped groove when rotating, and the slider 5 serves to support the rotating ring 41, so that the rotating ring 41 can be stably mounted on the outside of the mounting shell 2.

[0034] Specifically, the pressing assembly 43 includes: a pressing plate 431, a pressing rod 432 and a limit block 433. The pressing plate 431 is slidably and interlaced with the inner cavity of the clamping hole; one end of the pressing rod 432 is fixedly connected to the pressing plate 431, and the other end of the pressing rod 432 is fixedly connected to the inner wall of the clamping hole. When the positioning rod 421 is clamped with the positioning hole by the elastic force of the compression spring 423, the pressing plate 431 can be pushed to the innermost part of the clamping hole. At this time, the pressing rod 432 is in an extended state. When adjustment is needed, multiple pressing rods 432 can be held at the same time by holding the rotating ring 41, so that the pressing rods 432 can be squeezed at the same time, so that the pressing plate 431 separates the positioning rod 421 from the clamping hole. At this time, the rotating ring 41 can be rotated to adjust the extension length of the drill bit 3. A plurality of limit blocks 433 are respectively fixedly connected to the two sides of the pressing plate 431, and limit grooves are provided on both sides of the inner wall of the snap-in hole. The limit blocks 433 are slidably and interlaced with the inner cavity of the limit groove. The limit blocks 433 play a limiting role in the pressing plate 431, so that when the pressing rod 432 is squeezed, the pressing plate 431 can only be displaced within the range of the limit groove.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A drill bit adjustment assembly for a benchtop drilling machine, comprising: A connecting portion (1), the bottom end of the connecting portion (1) being fixedly connected to a mounting housing (2); The invention is characterized in that a drill bit (3) is provided inside the installation shell (2), a mounting mechanism (4) is provided inside the installation shell (2), and the mounting mechanism (4) comprises: A rotating ring (41), the rotating ring (41) being sleeved on the outside of the mounting housing (2); An elastic clamping assembly (42), wherein a plurality of elastic grooves are equidistantly formed inside the mounting housing (2), and the elastic clamping assembly (42) is located inside the elastic grooves and is used for multi-point positioning of the drill bit (3); A pressing component (43) is provided inside the rotating ring (41) with a plurality of snap-in holes at equal intervals, and the pressing component (43) is located inside the snap-in holes.

2. The drill bit adjustment assembly of a benchtop drilling machine according to claim 1, characterized in that: The elastic snap-fit assembly (42) comprises: A positioning rod (421), the positioning rod (421) is slidably connected to both sides of the inner wall of the elastic groove, the outer wall of the drill bit (3) is equidistantly provided with a plurality of positioning holes, one end of the positioning rod (421) is slidably connected to the inner cavity of the positioning hole, the other end of the positioning rod (421) is slidably connected to the inner cavity of the clamping hole, the inner wall of the rotating ring (41) is equidistantly provided with a plurality of oblique grooves, the positioning rod (421) and the oblique grooves cooperate with each other; An extrusion plate (422), the extrusion plate (422) is located inside the elastic groove, and the extrusion plate (422) is fixedly connected to the positioning rod (421); A compression spring (423) is sleeved on the outside of the positioning rod (421).

3. The drill bit adjustment assembly of a benchtop drilling machine according to claim 2, characterized in that: One end of the compression spring (423) is fixedly connected to the extrusion plate (422), and the other end of the compression spring (423) is fixedly connected to the inner wall of the elastic groove.

4. The drill bit adjustment assembly of a benchtop drilling machine according to claim 1, characterized in that: The outer wall of the mounting shell (2) is provided with a plurality of arc-shaped grooves, and a slider (5) is slidably inserted into the inner cavity of the arc-shaped groove. The plurality of sliders (5) are fixedly connected to the inner wall of the rotating ring (41), and the cross-sections of the slider (5) and the arc-shaped groove are both T-shaped.

5. The drill bit adjustment assembly of a benchtop drilling machine according to claim 1, characterized in that: The pressing component (43) comprises: A pressing plate (431), the pressing plate (431) being slidably interpenetratingly connected with the inner cavity of the clamping hole; A pressing rod (432), one end of the pressing rod (432) is fixedly connected to the pressing plate (431), and the other end of the pressing rod (432) is fixedly connected to the inner wall of the clamping hole.

6. The drill bit adjustment assembly of a benchtop drilling machine according to claim 5, characterized in that: The pressing component (43) further includes: A plurality of limit blocks (433) are fixedly connected to both sides of the pressing plate (431), and limit grooves are provided on both sides of the inner wall of the clamping hole. The limit blocks (433) are connected to the inner cavity of the limit grooves in a sliding manner.

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