Side fixing type cutter handle and drilling machine comprising same

Abstract

The utility model provides a side fixing type cutter handle and a drilling machine comprising the side fixing type cutter handle. The side fixing type cutter handle comprises a cutter handle seat, and a mounting hole is formed in the cutter handle seat; the elastic sleeve comprises a cylindrical elastic sleeve body and a notch, the notch is formed in the outer wall of the elastic sleeve body and extends in the full-length axial direction of the elastic sleeve body, the elastic sleeve is used for being inserted into the mounting hole, and an inner cavity of the elastic sleeve is used for mounting a drill rod; the fastener penetrates through the outer wall of the cutter handle seat and abuts against the elastic sleeve body in a pressure mode so as to adjust the width of the notch, the side fixing type cutter handle clamps a drill rod through the elastic sleeve, abuts against the elastic sleeve in a pressure mode through the fastener and is used for adjusting the fastening degree of the drill rod clamped by the elastic sleeve, and therefore the side fixing type cutter handle is convenient to use. The side fixing type cutter handle is simple in structure, supports quick replacement of the drill rod and is easy to operate.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical processing, and in particular relates to a side-fixed tool handle and a drilling machine comprising the same. Background Art

[0002] With the rapid development of CNC machining technology, CNC drilling machines are increasingly used in the field of mechanical machining. As a key component of CNC drilling machines, the performance of drill bit holders directly affects machining accuracy, machining efficiency and tool life. Therefore, improving the clamping accuracy, stability and reliability of drill bit holders has become an important research direction in the field of CNC drilling machine technology.

[0003] At present, CNC drilling machines use spring chuck toolholders, which have complex structures, high costs, long drill rod replacement time, and low work efficiency. In addition, the gap between the toolholder cores is prone to debris, making it inconvenient to clean the tool the next time you change the tool.

[0004] Therefore, it is necessary to design a side-fixed tool holder and a drilling machine including the same to increase the time for changing the drill rod. Utility Model Content

[0005] Aiming at some or all of the above technical problems existing in the prior art, the utility model provides a side-fixed tool handle and a drilling machine including the same. The side-fixed tool handle has a simple structure, fast drill rod replacement speed and low manufacturing cost.

[0006] According to one aspect of the utility model, a side-fixed tool handle is provided, comprising:

[0007] A tool handle seat, wherein a mounting hole is provided on the tool handle seat,

[0008] The elastic sleeve comprises a cylindrical elastic sleeve body and a notch arranged on the outer wall of the elastic sleeve body and extending along the entire axial direction of the elastic sleeve body. The elastic sleeve is used to be inserted into the mounting hole and the inner cavity of the elastic sleeve is used to mount the drill rod.

[0009] A fastener passes through the outer wall of the shank seat and abuts against the elastic sleeve body with pressure to adjust the width of the notch.

[0010] In one embodiment, the width of the notch is 1-3 mm.

[0011] In one embodiment, the elastic sleeve is made of spring steel material.

[0012] In one embodiment, the fastener is a top screw, and a threaded hole for mating with the top screw thread is provided on the peripheral wall of the shank seat.

[0013] In one embodiment, a groove for embedding the top screw is provided on the elastic sleeve body, and the groove and the notch are spaced ninety degrees apart in the circumferential direction of the elastic sleeve body.

[0014] In one embodiment, the shank seat comprises a base and an adjusting member detachably connected to the base, the mounting hole is arranged on the adjusting member and the fastener passes through an outer wall of the adjusting member.

[0015] In one embodiment, a bolt hole extending along the axial direction is provided on the wall of the adjusting member, and a bolt passes through the bolt hole to be threadedly connected with the base.

[0016] In one embodiment, the inner diameter of the bolt hole is larger than the outer diameter of the bolt.

[0017] In one embodiment, a plurality of the bolt holes are arranged on the wall of the adjusting member, and the plurality of the bolt holes are evenly distributed in the circumferential direction of the adjusting member.

[0018] According to one aspect of the utility model, a drilling machine is provided, comprising the above-mentioned side-fixed tool holder and drill rod, wherein the tool holder seat is arranged on the bed of the drilling machine, and the drill rod is inserted into the elastic sleeve.

[0019] Compared with the prior art, the advantages of the present invention are: the side-fixed tool handle clamps the drill rod through an elastic sleeve, and abuts the elastic sleeve with pressure through a fastener, so as to adjust the tightness of the elastic sleeve clamping the drill rod. It can be seen that the side-fixed tool handle of the present application has a simple structure, supports quick replacement of drill rods, and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, in which:

[0021] Figure 1 A side-fixed tool holder and a drill rod according to an embodiment of the utility model are shown.

[0022] In the drawings, the same reference numerals are used for the same components. The drawings are not drawn to scale. DETAILED DESCRIPTION

[0023] In order to make the technical solutions and advantages of the present invention more clearly understood, the exemplary embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than an exhaustive list of all embodiments. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other if there is no conflict.

[0024] The embodiment of the utility model provides a side-fixed tool handle 10. Figure 1 As shown, the side-fixed tool handle 10 includes a tool handle seat 1, an elastic sleeve 2 and a fastener 3. Among them, the tool handle seat 1 is used to be installed on the bed of the drilling machine to play the role of basic installation. A mounting hole 11 is provided on the tool handle seat 1. The elastic sleeve 2 is used to be inserted into the mounting hole 11. At the same time, the inner cavity of the elastic sleeve 2 is used for the installation and insertion of the drill rod 20. It can be seen that the drill rod 20 can be installed on the tool handle seat 1 through the elastic sleeve 2. Structurally, the elastic sleeve 2 contains a cylindrical elastic sleeve body 21 and a notch 22. The notch 22 is arranged on the outer wall of the elastic sleeve body 21, and itself extends along the full axial direction of the elastic sleeve body 21. In other words, the elastic sleeve 2 is constructed as a cylindrical structure with a C-shaped radial cross-section, and the unclosed part of the C-shaped is the notch 22. The fastener 3 passes through the outer wall of the tool handle seat 1 and abuts the elastic sleeve body 21 with pressure, which is used to adjust the width of the notch 22, thereby adjusting the clamping force of the drill rod 20.

[0025] It can be seen that in the present application, the drill rod 20 is clamped by the elastic sleeve 2 and installed on the tool holder seat 1. This structure is simple and has low manufacturing cost. In particular, the clamping force on the drill rod 20 can be adjusted by the fastener 3 pressing against the elastic sleeve body 21, thereby facilitating the installation and removal of the drill rod 20.

[0026] In one embodiment, the width of the notch 22 is 1-3 mm. It is easy to understand that the width of the notch 22 here refers to the width of the notch 22 in the natural state, that is, the straight-line distance between the two notch walls of the notch 22. For example, the width of the notch 22 is 2 mm. This setting limits the size of the notch 22, which is used to ensure the adjustment capability of the diameter of the elastic sleeve 2, facilitate the insertion of the drill rod 20, and ensure the wrapping capability of the elastic sleeve 2, thereby ensuring the clamping force and meeting the use requirements. At the same time, this setting can facilitate processing while meeting the use requirements.

[0027] This elastic sleeve 2 is made of spring steel. This arrangement utilizes the excellent comprehensive ability of spring steel, and has low manufacturing cost.

[0028] In one embodiment, the fastener 3 is a top screw. A threaded hole 12 is provided on the peripheral wall of the handle seat 1. The threaded hole 12 is used to cooperate with the top screw thread. The threaded hole 12 is used for the top screw to pass through to abut against the elastic sleeve 2, and can also cooperate with the top screw thread to limit the position of the top screw to ensure the abutting pressure of the top screw on the elastic sleeve 2.

[0029] A groove 23 is provided on the elastic sleeve body 21. The groove 23 and the notch 22 are spaced ninety degrees apart in the circumferential direction of the elastic sleeve body 21. The groove 23 is used for embedding the top screw. For example, after the top screw passes through the peripheral wall of the shank seat 1, it is embedded in the groove 23. It can be seen that the groove 23 positions the top screw to ensure the abutment position of the top screw. In addition, the groove 23 limits the top screw to prevent the top screw from slipping on the wall of the elastic sleeve 2. In particular, by arranging the groove 23 and the notch 22 to be spaced ninety degrees apart in the circumferential direction of the elastic sleeve body 21, it can be ensured that the pressure provided by the top screw can effectively adjust the size of the notch 22 of the elastic sleeve 2.

[0030] In one embodiment, the tool handle seat 1 comprises a base 13 and an adjusting member 14 detachably connected to the base 13. The mounting hole 11 is provided on the adjusting member 14, and the fastener 3 passes through the outer wall of the adjusting member 14. After the tool handle seat 1 is provided as a split structure, during the installation process, the drill rod 20 can be first installed on the adjusting member 14, and then the adjusting member 14 can be installed on the base 13, which facilitates the installation operation.

[0031] Specifically, a bolt hole 15 extending along the axial direction is provided on the wall of the adjusting member 14. After the bolt 4 passes through the bolt hole 15, it is threadedly connected to the base 13. It can be seen that the adjusting member 14 is connected to the base 13 by the bolt 4. This connection method is simple, easy to implement, and is particularly convenient for installation and disassembly operations.

[0032] Preferably, the inner diameter of the bolt hole 15 is larger than the outer diameter of the bolt 4. This arrangement can facilitate the adjustment of the position of the adjusting member 14 relative to the base 13, which helps to ensure the coaxiality of the drill rod 20. A plurality of bolt holes 15 are arranged on the wall of the adjusting member 14, and the plurality of bolt holes 15 are evenly distributed in the circumferential direction of the adjusting member 14. In the present application, three bolt holes 15 are shown. This arrangement can ensure the installation stability of the adjusting member 14 on the base 13.

[0033] During the first clamping process, first insert the elastic sleeve 2 into the inner cavity of the adjustment member 14 so that the groove 23 is aligned with the threaded hole 12. The top screw is screwed into the threaded hole 12, and the screwed end is embedded in the groove 23. Insert the drill rod 20 into the elastic sleeve 2. Tighten the top screw. During the screwing process of the top screw, the pressure of the top screw abuts against the elastic sleeve 2, causing the elastic sleeve 2 to deform, so that the width of the notch 22 becomes smaller to hold the inserted drill rod 20 tightly. After the bolt 4 passes through the bolt hole 15, it is connected to the base 13 and pre-tightened first to pre-fix the adjustment member 14 to the base 13. Then adjust the coaxiality. Finally, tighten the bolt 4 to fix the adjustment member 14 to the base 13. At this point, the installation of the drill rod 20 is completed.

[0034] When replacing the drill rod 20 at a later stage, it is only necessary to loosen the top screw and release the clamping force of the elastic sleeve 2 on the drill rod 20, and then the drill rod 20 can be removed. When a new drill rod 20 is installed, the top screw is tightened, and then the new drill rod 20 can be installed in place.

[0035] The side-fixed tool handle of the present application has a simple structure, low manufacturing cost, and can realize rapid replacement of the drill rod. During the installation process, the concentricity of the drill rod and the main shaft can be adjusted by limiting the position of the adjustment member relative to the base to ensure the processing accuracy in the later stage. In addition, the side-fixed tool handle of this structure can prevent excessive debris from entering and is easy to clean.

[0036] The present application also relates to a drilling machine. The drilling machine comprises the above-mentioned side-fixed tool holder and a drill rod 20. The tool holder seat 1 is arranged on the body of the drilling machine. The drill rod 20 is inserted into an elastic sleeve 2 for mounting the drill rod 20 on the drilling machine.

[0037] Although the preferred embodiments of the utility model have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and / or modifications that fall within the scope of the utility model, and changes and / or modifications made according to the embodiments of the utility model should be included within the scope of protection of the utility model.

Claims

1. A side-fixed tool handle, characterized in that: include: A tool handle seat, wherein a mounting hole is provided on the tool handle seat, The elastic sleeve comprises a cylindrical elastic sleeve body and a notch arranged on the outer wall of the elastic sleeve body and extending along the entire axial direction of the elastic sleeve body. The elastic sleeve is used to be inserted into the mounting hole and the inner cavity of the elastic sleeve is used to mount the drill rod. A fastener passes through the outer wall of the shank seat and abuts against the elastic sleeve body with pressure to adjust the width of the notch.

2. The side-locked tool handle according to claim 1, characterized in that: The width of the notch is 1-3 mm.

3. The side-locked tool handle according to claim 1, characterized in that: The elastic sleeve is made of spring steel material.

4. The side-locked tool handle according to claim 1, characterized in that: The fastener is a top screw, and a threaded hole for cooperating with the top screw thread is arranged on the peripheral wall of the tool handle seat.

5. The side-locked tool handle according to claim 4, characterized in that: A groove for embedding the top screw is arranged on the elastic sleeve body, and the groove and the notch are spaced 90 degrees apart in the circumferential direction of the elastic sleeve body.

6. The side-locked tool handle according to any one of claims 1 to 5, characterized in that: The shank seat comprises a base and an adjusting member detachably connected to the base, the mounting hole is arranged on the adjusting member and the fastener passes through the outer wall of the adjusting member.

7. The side-locked tool handle according to claim 6, characterized in that: A bolt hole extending along the axial direction is arranged on the wall of the adjusting member, and a bolt passes through the bolt hole and is thread-matchedly connected with the base.

8. The side-locked tool handle according to claim 7, characterized in that: The inner diameter of the bolt hole is greater than the outer diameter of the bolt.

9. The side-locked tool handle according to claim 7, characterized in that: A plurality of bolt holes are arranged on the wall of the adjusting member, and the plurality of bolt holes are evenly distributed in the circumferential direction of the adjusting member.

10. A drilling machine, characterized in that: The utility model comprises a side-fixed tool holder and a drill rod according to any one of claims 1 to 9, wherein the tool holder seat is arranged on a bed of the drilling machine, and the drill rod is inserted into the elastic sleeve.

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