Quick disassembly and assembly structure of die-casting titanized hexagonal handle twist drill

Abstract

The utility model provides a quick disassembly and assembly structure of a die-casting titanized hexagonal handle twist drill, which relates to the field of drill chucks, and comprises a fastening sleeve, an extension part extending outwards from the side wall of the fastening sleeve, and a screw sleeve sleeved on the threaded part of the fastening sleeve, a clamping sleeve for clamping the hexagonal handle is arranged on the inner side of the fastening sleeve; the clamping force of the clamping sleeve is in direct proportion to the distance between the threaded sleeve and the extension part; the rod grooves are arrayed in the threaded part of the fastening sleeve, and the soft rods are arranged in the rod grooves in one-to-one correspondence with the rod grooves; the flexible rod is located on the moving path of the threaded sleeve, one end of the flexible rod is fixed to the groove bottom of the rod groove, the other end of the flexible rod extends to the extension portion, and the portion, located above the threaded sleeve, of the flexible rod is obliquely arranged right above the threaded sleeve, the flexible rod is obliquely arranged right above the threaded sleeve, the flexible rod applies downward pressure to the threaded sleeve in a contact mode, rotation of the threaded sleeve can be limited, and the flexible rod is not prone to falling off. And the clamping force of the second fastening sleeve on the hexagonal handle is kept.

Description

Technical Field

[0001] The utility model relates to the field of drill chucks, in particular to a quick disassembly and assembly structure for a die-cast titanium-plated hexagonal shank twist drill. Background Art

[0002] Figure 1 And Figure 2 As shown in the quick disassembly and assembly structure, it is commonly used in the installation work of hexagonal shank twist drills. At present, according to user feedback, in the chuck fixing method with bolt connection as the locking, when the locking sleeve is accidentally touched by personnel and the offset of the sleeve is not found in time, there is a technical risk of the drill body slipping off, and the potential safety hazard is relatively large. Therefore, it is necessary to improve and expand the function of the quick disassembly and assembly structure shown in Figure 1 And Figure 2 the quick disassembly and assembly structure shown. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a quick disassembly and assembly structure for a die-cast titanium-plated hexagonal shank twist drill to solve the above technical problems.

[0004] The utility model adopts the following technical solutions to achieve the above purpose:

[0005] A quick disassembly and assembly structure for a die-cast titanium-plated hexagonal shank twist drill includes a fastening sleeve, an extension part extending outward from the side wall of the fastening sleeve, and a sleeve sleeved on the threaded part of the fastening sleeve;

[0006] A clamping sleeve for clamping the hexagonal shank is arranged inside the fastening sleeve;

[0007] The clamping force of the clamping sleeve is proportional to the distance between the sleeve and the extension part;

[0008] It further includes a plurality of rod grooves arranged in an array on the threaded part of the fastening sleeve, and soft rods arranged in the rod grooves corresponding to the plurality of rod grooves one by one;

[0009] The soft rods are in the moving path of the sleeve. Among them, one end of the soft rod is fixed at the bottom of the rod groove, and the other end of the soft rod extends to the extension part, so that the soft rods located above the sleeve are obliquely arranged directly above the sleeve.

[0010] Preferably, the tightness of the soft rod extending to the inside of the extension part at one end is adjustable.

[0011] Preferably, the extension part is provided with a plurality of screw holes corresponding to the plurality of rod grooves, and corresponding to the screw holes are screw rods. The tail of the screw rod is connected to the soft rod, and is used to adjust the tightness of the soft rod during the threaded fit of the screw rod and the screw hole.

[0012] Preferably, the fastening sleeve is divided into a first fastening sleeve and a second fastening sleeve. Among them, the threaded part of the fastening sleeve is on the outer wall of the second fastening sleeve, and there are also a plurality of telescopic grooves on the outer wall of the second fastening sleeve located between adjacent rod grooves.

[0013] Preferably, the hexagonal handle is divided into a first hexagonal handle and a second hexagonal handle. Among them, the second hexagonal handle is inserted into the first fastening sleeve through a jacket, and the first hexagonal handle is clamped by the jacket in the jacket.

[0014] Preferably, the telescopic groove is an open groove.

[0015] The beneficial effects of the utility model are as follows:

[0016] 1. In the utility model, the flexible rod is obliquely arranged directly above the screw sleeve, and the flexible rod applies a downward pressure to the screw sleeve in a contact manner, which can limit the rotation of the screw sleeve and maintain the clamping force of the second fastening sleeve on the hexagonal handle.

[0017] 2. The tightness of the flexible rod in the utility model is adjustable. This setting can make the flexible rod loose during purposeful disassembly and assembly, adjust the limiting force of the flexible rod on the screw sleeve. In addition, combined with the characteristics of drilling and cutting, the flexible rod can be tightened to avoid excessive deformation of the flexible rod caused by centrifugal force during drilling and cutting, so as to form interference. Description of the drawings

[0018] Figure 1 It is a schematic structural diagram of an existing quick disassembly and assembly structure and a split structure of a die-cast titanium-plated hexagonal handle twist drill;

[0019] Figure 2 is Figure 1 A schematic structural diagram of the existing quick disassembly and assembly structure and the die-cast titanium-plated hexagonal handle twist drill when combined;

[0020] Figure 3 It is a schematic structural diagram of a quick disassembly and assembly structure of a die-cast titanium-plated hexagonal handle twist drill proposed by the utility model;

[0021] Figure 4 is Figure 3 A schematic cross-sectional structural diagram of the quick disassembly and assembly structure shown;

[0022] Figure 5 It is a schematic structural diagram after the screw sleeve and the fastener are separated;

[0023] Reference numerals: 1, first fastening sleeve; 2, extension part; 3, second fastening sleeve; 4, screw sleeve; 5, first hexagonal handle; 6, jacket; 7, telescopic groove; 8, flexible rod; 9, rod groove; 10, screw rod; 11, second hexagonal handle; 12, first accommodation cavity; 13, second accommodation cavity. Detailed implementation manners

[0024] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the following combines specific embodiments and drawings to further elaborate the present utility model. However, the following embodiments are only the preferred embodiments of the present utility model, not all. Based on the embodiments in the implementation manners, other embodiments obtained by those skilled in the art without creative efforts all fall within the protection scope of the present utility model.

[0025] The following describes the specific embodiments of the present utility model with reference to the drawings.

[0026] Embodiment 1

[0027] In this embodiment, a quick disassembly and assembly structure for a die-cast titanium-plated hexagon shank twist drill is proposed. Please refer to Figures 3 - 5 , the core of the quick disassembly and assembly structure is Figure 1 and Figure 2 which are basically the same, mainly including a first fastening sleeve 1, a second fastening sleeve 3, and an outer extension part 2 located between the first fastening sleeve 1 and the second fastening sleeve 3. Further explanation, the outer extension part 2 extends outward relative to the first fastening sleeve 1 and the second fastening sleeve 3.

[0028] Please refer to Figure 4 , the first fastening sleeve 1 has a first accommodation cavity 12, and the second fastening sleeve 3 has a second accommodation cavity 13.

[0029] The outer wall of the second fastening sleeve 3 has threads, and there is also an open telescopic groove 7 at the threaded part.

[0030] Please continue to refer to Figure 4 , there is a clamping sleeve 6 for clamping the hexagon shank inside the second fastening sleeve 3. It should be noted that the clamping force of the clamping sleeve 6 on the hexagon shank can be adjusted.

[0031] Please refer to Figure 3 and Figure 5 , the threaded area of the second fastening sleeve 3 is equipped with a screw sleeve 4, and the sheet-like bodies with threaded segments between adjacent telescopic grooves 7 deflect slightly outward. In this way, combined with the movement of the screw sleeve 4 in the threaded area, the multiple sheet-like bodies with threaded segments move closer to clamp the hexagon shank tightly, or the multiple sheet-like bodies with threaded segments expand outward, thereby reducing the clamping force on the hexagon shank so that the hexagon shank can be pulled out from the second fastening sleeve 3.

[0032] Please refer to Figure 5 , the quick disassembly and assembly structure further includes a plurality of rod grooves 9 arrayed in the threaded area of the second fastening sleeve 3, and soft rods 8 corresponding to the plurality of rod grooves 9 one by one.

[0033] Further explanation, the soft rod 8 is in the movement path of the screw sleeve 4. One end of the soft rod 8 is fixed at the bottom of the rod groove 9, and the other end of the soft rod 8 extends into the outer extension part 2. In this way, the soft rod 8 located above the screw sleeve 4 is likeFigure 3 It is shown as being obliquely placed just above the screw sleeve 4.

[0034] This embodiment can limit the uncontrolled rotation of the screw sleeve 4 in the threaded portion. Specifically, the soft rod 8 is as follows: Figure 3 As shown, the soft rod 8 is placed obliquely just above the screw sleeve 4, and always applies downward pressure to the screw sleeve 4 by contact, thereby limiting the rotation of the screw sleeve 4 and maintaining the clamping force of the second fastening sleeve 3 on the hexagonal handle.

[0035] Please continue reading Figures 3 - 5 In this embodiment, the tightness of the soft rod 8 extending at one end into the extension portion 2 is adjustable. Specifically, the extension portion 2 corresponds to a plurality of rod grooves 9 and matches a plurality of screw holes, and the screw holes correspond to the screw rod 10, wherein the tail end of the screw rod 10 is connected to the soft rod 8, and is used to adjust the tightness of the soft rod 8 when the screw rod 10 and the screw hole are threadedly matched.

[0036] The tightness of the soft rod 8 is adjustable, mainly to prevent the soft rod 8 from interfering with the rotating screw sleeve 4 when disassembly and assembly are required. Similarly, the soft rod 8 can be made tight in combination with the drilling and cutting feature to prevent the centrifugal force during drilling and cutting from causing excessive deformation of the soft rod 8, thereby preventing interference.

[0037] See also Figure 3 and Figure 5 The screw rod 10 protruding outward relative to the extension portion 2 can be used as a fulcrum for personnel to conveniently screw the screw sleeve 4 .

[0038] It should also be noted that in this embodiment, the hexagonal shank is divided into a first hexagonal shank 5 and a second hexagonal shank 11, wherein the second hexagonal shank 11 is inserted into the first fastening sleeve 1 by the sleeve 6, and the first hexagonal shank 5 is clamped by the sleeve 6 in the sleeve 6 (the first fastening sleeve 1 has a first accommodating cavity 12 for the second hexagonal shank 11 to penetrate, and the second fastening sleeve 3 has a second accommodating cavity 13 to fix the sleeve 6).

[0039] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0040] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A quick disassembly and assembly structure of a die-cast titanium-plated hexagonal shank twist drill, characterized in that; It includes a fastening sleeve, an extension portion extending outward from a side wall of the fastening sleeve, and a threaded sleeve trapped on a threaded portion of the fastening sleeve; The inner side of the fastening sleeve is equipped with a clamping sleeve for clamping the hexagonal shank; The clamping force of the jacket is proportional to the distance between the sleeve and the extension; It also includes a plurality of rod grooves arrayed on the threaded portion of the fastening sleeve, and soft rods arranged in the rod grooves correspond one to one with the plurality of rod grooves; The soft rod is in the active path of the screw sleeve, wherein one end of the soft rod is fixed at the bottom of the rod groove, and the other end of the soft rod extends to the extension part, so that the soft rod located above the screw sleeve is obliquely placed directly above the screw sleeve.

2. The quick disassembly and assembly structure of a die-cast titanium-plated hexagonal shank twist drill according to claim 1, characterized in that: The tightness of the soft rod with one end extending into the extension part is adjustable.

3. The quick disassembly and assembly structure of a die-cast titanium-plated hexagonal shank twist drill according to claim 2, characterized in that: The extension portion corresponds to a plurality of rod grooves and matches a plurality of screw holes, and the screw holes correspond to screw rods, wherein the tail of the screw rod is connected to a soft rod for adjusting the tightness of the soft rod in the threaded cooperation between the screw rod and the screw hole.

4. The quick disassembly and assembly structure of a die-cast titanium-plated hexagonal shank twist drill according to claim 1, characterized in that: The fastening sleeve is divided into a first fastening sleeve and a second fastening sleeve, wherein the threaded portion of the fastening sleeve is on the outer wall of the second fastening sleeve, and the outer wall of the second fastening sleeve also has a plurality of telescopic grooves located between adjacent rod grooves.

5. The quick disassembly and assembly structure of a die-cast titanium-plated hexagonal shank twist drill according to claim 4, characterized in that: The hexagonal shank is divided into a first hexagonal shank and a second hexagonal shank, wherein the second hexagonal shank is inserted into the first fastening sleeve by a sleeve, and the first hexagonal shank is clamped by the sleeve in the sleeve.

6. The quick disassembly and assembly structure of a die-cast titanium-plated hexagonal shank twist drill according to claim 4, characterized in that: The telescopic slot is an open slot.

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