Hole spacing quick-change adapter

Abstract

A hole saw quick-change adapter, relating to the technical field of hole saw adapters. The hole saw quick-change adapter comprises a hexagonal handle (1), a quick-change outer sleeve (2), and a connector main body (3), the quick-change outer sleeve (2) being fixed at the front of the hexagonal handle (1), the interior of the quick-change outer sleeve (2) being a hollow structure, the connector main body (3) being disposed inside the quick-change outer sleeve (2), a connector spline (4) being provided on the outer side of the front end of the connector main body (3), and a quick-change lock (7) being fixed to the front end of the quick-change outer sleeve (2).

Description

A quick-change adapter for hole spacing Technical Field

[0001] The invention relates to the technical field of hole pitch adapters, in particular to a hole pitch quick-changing adapter. Background Art

[0002] In modern industry and engineering, a hole gauge is often used to drill circular holes in various materials, including metal. Because this sawing process requires power to generate the hole gauge, it's typically installed on power tools like hand drills, impact drills, and radial drills. To accommodate different hole gauges and power tools, adapters are often used to connect and transmit torque. This improves drilling efficiency and reduces waste material removal time, making drilling faster and more convenient. Technical issues

[0003] Existing quick-change adapters for hole pitches primarily utilize an external hexagonal rod inserted into an internal hexagonal hole, creating a transmission mechanism that allows for easy removal and quick replacement to adjust the hole pitch accordingly. However, during use, the quick-change rod experiences static imbalance, preventing a tight fit between the holes, resulting in an oversized hole pitch. This can damage the hole pitch over time and, in the event of an emergency stop, cause the hole pitch to unscrew, potentially causing injury. Therefore, their use is limited.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a hole pitch quick change adapter is proposed. Technical Solutions

[0005] In view of the deficiencies in the prior art, the present invention provides a quick-change adapter for hole pitches, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a quick-change adapter for hole pitch, comprising a hexagonal handle, a quick-change sleeve, and a joint body, a quick-change sleeve fixed to the front of the hexagonal handle, and the interior of the quick-change sleeve is a hollow structure, a joint body is provided inside the quick-change sleeve, and a joint spline is provided on the outer side of the front end of the joint body, a quick-change lock is fixed to the front end of the quick-change sleeve, a card slot is provided inside the quick-change lock, and a card pin is installed inside the card slot, positioning blocks are symmetrically fixed on the left and right sides of the front end of the quick-change lock, and the positioning blocks are round rod-shaped structures.

[0007] Furthermore, the hexagonal handle, quick-change sleeve and quick-change lock are an integrated structure, and the quick-change lock is an annular structure.

[0008] Furthermore, a threaded hole is provided on the upper middle side of the quick-change sleeve, and an M8 bolt is installed inside the threaded hole, and the bottom of the M8 bolt passes through the end of the connector body.

[0009] Furthermore, a magnet is provided on the rear side of the quick-change lock, and a retaining ring is installed behind the magnet.

[0010] Furthermore, the cross section of the slot is T-shaped, and the slot and the latch are in a snap connection.

[0011] Furthermore, connecting holes are provided on both the upper and lower sides of the middle portion of the connector body, and the connecting holes match the size of the bottom end of the bayonet pin.

[0012] Furthermore, the joint body is used for assembly with a hole-distance drill bit, and the joint spline of the joint body is a plum blossom pattern. Beneficial effects

[0013] The present invention provides a quick-change adapter for hole pitch, which has the following beneficial effects:

[0014] 1. This quick-change adapter features a main body and splines. The main body's splines feature a plum blossom pattern, ensuring a tight fit with the hole pitch. This, combined with the tight fit of the flat surfaces, enhances static balance, facilitating assembly and quick replacement of the main body and hole pitch drill. The quick-change lock features symmetrically fixed positioning blocks on both sides of the front end. These two positioning blocks reinforce the hole pitch, preventing it from unscrewing in an emergency stop, making it safer to use. A retaining ring protects the quick-change lock.

[0015] 2. The hole spacing quick change adapter is provided with a bayonet. The bottom of the M8 bolt passes through the end of the connector body, which is conducive to the fastening assembly between the connector body and the quick-change sleeve. The bottom end of the bayonet can be inserted into the connecting holes on the upper and lower sides of the middle part of the connector body. At the same time, the upper end of the bayonet can be inserted into the inside of the T-shaped slot. Therefore, the two symmetrically arranged bayonet pins can improve the runout balance of the drill bit. Due to the push-pull pin structure, the balance within the hole spacing is effectively enhanced, making the work more stable, while increasing the service life of the hole spacing drill bit, increasing the use accuracy of the hole spacing drill bit, and increasing the safety of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG1 is a front view schematic diagram of the external structure of a quick-change hole pitch adapter according to the present invention;

[0017] FIG2 is a top perspective structural diagram of a quick-change hole pitch adapter according to the present invention;

[0018] FIG3 is a schematic diagram of a half-section three-dimensional structure of a quick-change hole pitch adapter according to the present invention;

[0019] FIG4 is a schematic diagram of the overall cross-sectional structure of a quick-change hole pitch adapter according to the present invention;

[0020] FIG5 is a schematic diagram of the upper half-section structure of a quick-change hole pitch adapter according to the present invention.

[0021] In the figure: 1. Hexagonal shank; 2. Quick-change sleeve; 3. Connector body; 4. Connector spline; 5. Threaded hole; 6. M8 bolt; 7. Quick-change lock; 8. Magnet; 9. Retaining ring; 10. Slot; 11. Bayonet pin; 12. Connecting hole; 13. Positioning block. Modes for Carrying Out the Invention

[0022] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0023] Please refer to Figures 1 to 5. The present invention provides a technical solution: a quick-change adapter for hole pitch, comprising a hexagonal shank 1, a quick-change jacket 2, and a joint body 3. The quick-change jacket 2 is fixed to the front of the hexagonal shank 1, and the interior of the quick-change jacket 2 is a hollow structure. The joint body 3 is provided inside the quick-change jacket 2, and a joint spline 4 is provided on the outer front end of the joint body 3. The joint body 3 is used to be assembled with a hole pitch drill bit, and the joint spline 4 of the joint body 3 is a plum blossom pattern; a quick-change lock 7 is fixed to the front end of the quick-change jacket 2, the hexagonal shank 1, the quick-change jacket 2 and the quick-change lock 7 are an integrated structure, and the quick-change lock 7 is an annular structure; a magnet 8 is provided on the rear side of the quick-change lock 7, and a retaining ring 9 is installed behind the magnet 8; positioning blocks 13 are symmetrically fixed to the left and right sides of the front end of the quick-change lock 7, and the positioning blocks 13 are round rod-shaped structures;

[0024] The specific operation is as follows: the joint spline 4 of the joint body 3 is a plum blossom pattern that can closely match the hole spacing. In addition, the close fit of the flat surface increases its static balance, facilitating the assembly and quick replacement of the joint body 3 and the hole spacing drill bit. Because the positioning blocks 13 are symmetrically fixed on the left and right sides of the front end of the quick-change lock 7, the two positioning blocks 13 are arranged at two points to strengthen the hole spacing, making it difficult to rotate out in the event of an emergency stop, making it safer to use. The retaining ring 9 can protect the quick-change lock 7.

[0025] Referring to Figures 1 to 5, a threaded hole 5 is formed in the upper middle portion of the quick-change sleeve 2, and an M8 bolt 6 is installed inside the threaded hole 5. The bottom of the M8 bolt 6 extends through the end of the connector body 3. A slot 10 is formed inside the quick-change lock 7, and a bayonet pin 11 is installed inside the slot 10. The slot 10 has a T-shaped cross-section, and the slot 10 and the bayonet pin 11 are connected in a bayonet manner. Connecting holes 12 are provided on both the upper and lower sides of the middle portion of the connector body 3, and the dimensions of the connecting holes 12 match those of the bottom end of the bayonet pin 11.

[0026] The specific operation is as follows: the bottom of the M8 bolt 6 passes through the end of the joint body 3, which is conducive to the fastening assembly between the joint body 3 and the quick-change sleeve 2. The bottom end of the pin 11 can be inserted into the connecting holes 12 on the upper and lower sides of the middle part of the joint body 3. At the same time, the upper end of the pin 11 can be inserted into the inside of the T-shaped slot 10. Therefore, the two symmetrically arranged pins 11 above and below can improve the drill bit's runout balance. Due to the push-pull pin structure, the balance within the hole spacing is effectively enhanced, making the work more stable, and at the same time increasing the service life of the hole spacing drill bit, increasing the use accuracy of the hole spacing drill bit, and increasing the safety of the user population.

[0027] In summary, the hole pitch quick change adapter, please refer to Figures 1 to 5. When in use, first assemble the joint body 3 with the hole pitch drill bit. The joint spline 4 of the joint body 3 is a plum blossom pattern and can fit tightly with the hole pitch. In addition, the tight fit of the plane increases its static balance, which is convenient for assembling the joint body 3 with the hole pitch drill bit. Then assemble a rotating device such as a pistol drill with the hexagonal shank 1 so that it gives a rotational force to the hexagonal shank 1, and then transmit the force to the hole pitch drill bit through the spline of the quick-change jacket 2, so that the hole pitch drill bit rotates to punch a positioning hole, and the other part of the force is given to the joint spline 4, and finally the force is transmitted to the hole pitch drill bit through the joint thread, so that the hole pitch drill bit punches a hole of the required specification. During use, since the positioning blocks 13 are symmetrically fixed on the left and right sides of the front end of the quick-change lock 7, the two positioning blocks 13 are on both sides. The point setting reinforces the hole spacing, making it difficult to unscrew in the event of an emergency stop, making it safer to use. When the connector body 3 is in use, the bottom of the M8 bolt 6 passes through the end of the connector body 3, so that the connector body 3 and the quick-change sleeve 2 can be fastened and assembled, and the bottom end of the pin 11 can be inserted into the connecting holes 12 on the upper and lower sides of the middle part of the connector body 3. At the same time, the upper end of the pin 11 can be inserted into the inside of the T-shaped slot 10. Therefore, the two symmetrically arranged pins 11 above and below can improve the drill bit's runout balance. Due to the push-pull pin structure, the balance within the hole spacing is effectively enhanced, making the work smoother, and at the same time increasing the service life of the hole spacing drill bit, the use accuracy of the hole spacing drill bit, and the safety of the user population, thus completing the entire process of using the hole spacing quick change adapter.

[0028] The embodiments of the present invention are presented for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described in order to better illustrate the principles of the invention and its practical application and to enable those skilled in the art to understand the invention and design various embodiments with various modifications as suited for specific applications.

Claims

1. A quick hole pitch change adapter, characterized in that, it includes a hexagonal shank (1), a quick-change outer sleeve (2), and a joint body (3). The quick-change outer sleeve (2) is fixed in front of the hexagonal shank (1), and the inside of the quick-change outer sleeve (2) is a hollow structure. The joint body (3) is arranged inside the quick-change outer sleeve (2), and a joint spline (4) is provided on the outer side of the front end of the joint body (3). A quick-change lock (7) is fixed at the front end of the quick-change outer sleeve (2). A clamping groove (10) is formed inside the quick-change lock (7), and a clamping pin (11) is installed inside the clamping groove (10). Positioning blocks (13) are symmetrically fixed on the left and right sides of the front end of the quick-change lock (7), and the positioning blocks (13) are in a round rod shape structure.

2. The quick hole pitch change adapter according to claim 1, characterized in that, the hexagonal shank (1), the quick-change outer sleeve (2) and the quick-change lock (7) are of an integrated structure, and the quick-change lock (7) is in an annular structure.

3. The quick hole pitch change adapter according to claim 1, characterized in that, a threaded hole (5) is formed in the upper side of the middle part of the quick-change outer sleeve (2), an M8 bolt (6) is installed inside the threaded hole (5), and the bottom of the M8 bolt (6) penetrates through the end of the joint body (3).

4. The quick hole pitch change adapter according to claim 1, characterized in that, a magnet (8) is arranged at the rear side of the quick-change lock (7), and a retaining ring (9) is installed behind the magnet (8).

5. The quick hole pitch change adapter according to claim 1, characterized in that, the cross section of the clamping groove (10) is in a T-shaped structure, and the clamping groove (10) and the clamping pin (11) are in a clamping connection.

6. The quick hole pitch change adapter according to claim 1, characterized in that, connecting holes (12) are arranged on both the upper and lower sides of the middle part of the joint body (3), and the sizes of the connecting holes (12) are matched with the bottom end of the clamping pin (11).

7. The quick hole pitch change adapter according to claim 1, characterized in that, the joint body (3) is used for assembling with a hole pitch drill bit, and the joint spline (4) of the joint body (3) is a plum blossom pattern.

Images