Tool changing interface structure of grooving tool

Abstract

The utility model belongs to the technical field of grooving cutters, and particularly relates to a grooving cutter changing connector structure which comprises a cutter handle and an end, the end is integrally connected to one end of the cutter handle, a mounting groove is formed in one end of the end, a detachable cutter head is arranged in the mounting groove, a connecting part is arranged at the top of the end, and the cutter head is connected with the connecting part. The tool bit is connected into the mounting groove in a clamped mode through a connecting part, the connecting part comprises a stepped groove formed in the top of the end, the stepped groove penetrates through the mounting groove, and a positioning column is rotationally connected into the stepped groove through a bearing. According to the tool bit, the tool bit body is fixed in a rotating and clamping mode, the tool bit body does not need to be forcibly screwed and pressed, and the tool bit body cannot be loosened due to vibration of a tool in the working process; after the tool bit body is installed, the positioning column automatically rotates reversely under the action of elastic restoring force of the torsional spring, and loosening of the tool bit body caused by reverse rotation of the positioning column can be effectively avoided during working.

Description

Technical Field

[0001] The utility model belongs to the technical field of grooving tools, and particularly relates to a tool changing interface structure for a grooving tool. Background Technique

[0002] A grooving tool is a tool used for cutting and engraving materials such as wood, stone, and metal. It can be used to make various curves and grooves, and can also be used to engrave details and textures. The cutting edge of the grooving tool can be single-sided or double-sided. The two cutting edges of the double-sided grooving tool can cut in different directions, which can improve work efficiency.

[0003] The tool bit of the grooving tool is a consumable item, which will be worn and broken during the working process. The damaged tool bit needs to be replaced. When the commonly used tool bit of the grooving tool is installed, the tool bit is slid into the corresponding installation groove at one end of the tool handle, and then the fastening bolt on the tool handle is tightened to press the tool bit to realize the installation of the tool bit. This installation method has insufficient pre-tightening force when tightening the bolt. During work, the grooving tool vibrates, which is likely to cause the tool bit to loosen. Moreover, after long-term use, the bolt and the screw hole on the tool handle will be worn, resulting in an increase in the clearance between the two, which will also affect the stability of the tool bit installation. Content of the Utility Model

[0004] The purpose of the utility model is to provide a tool changing interface structure for a grooving tool, which does not need to be tightened with force during installation, and the tool bit body will not loosen when the tool vibrates during work, so as to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A tool changing interface structure for a grooving tool, including a tool handle and a head end. The head end is integrally connected to one end of the tool handle. An installation groove is provided at one end of the head end. A detachable tool bit is arranged inside the installation groove. A connecting component is arranged on the top of the head end. The tool bit is snap-connected inside the installation groove through the connecting component. The connecting component includes a stepped groove arranged on the top of the head end. The stepped groove penetrates the installation groove. A positioning column is rotatably connected inside the stepped groove through a bearing. One end of the positioning column is fixedly connected with a round head. End face grooves are symmetrically arranged on the side wall of the positioning column.

[0006] Furthermore, sliding grooves are arranged at both ends of the installation groove.

[0007] Furthermore, the tool bit includes a tool bit body. The tool bit body is inserted inside the installation groove. A pushing groove is arranged at one end of the tool bit body. A clamping groove is arranged at one end of the pushing groove.

[0008] Furthermore, the distance between the two end face grooves is equal to the width of the pushing groove, and the diameter of the positioning column is equal to the diameter of the clamping groove.

[0009] Further, a flared groove is provided at one end of the propulsion groove.

[0010] Further, sliding strips are provided at the top and bottom of the cutter head body, and the two sliding strips are respectively slidably connected inside the two sliding grooves.

[0011] Further, a groove is provided at one end of the positioning post, a torsion spring is provided inside the groove, and the two ends of the torsion spring are respectively fixedly connected to one end of the inner wall of the groove and one end of the inner wall of the stepped groove.

[0012] Further, a cross groove is provided at one end of the round head.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The cutter head body is fixed by means of rotational engagement, without the need to forcefully twist and press. During operation, the vibration of the cutter will not cause the cutter head body to loosen; after the installation of the cutter head body is completed, the positioning post automatically rotates in the reverse direction under the action of the elastic restoring force of the torsion spring, and during operation, it can effectively prevent the loosening of the cutter head body caused by the reverse rotation of the positioning post. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 is a front view of the present utility model;

[0016] Figure 3 is a three-dimensional structural schematic diagram of the cutter head of the present utility model;

[0017] Figure 4 is the present utility model Figure 2 a cross-sectional view taken along the A-A plane in;

[0018] Figure 5 is the present utility model Figure 4 an enlarged structural schematic diagram of the partial A in.

[0019] In the drawings, the list of components represented by each reference numeral is as follows:

[0020] 1, handle; 2, end; 3, installation groove; 31, sliding groove; 4, cutter head; 41, cutter head body; 42, propulsion groove; 43, clamping groove; 44, flared groove; 45, sliding strip; 5, connecting component; 51, stepped groove; 52, positioning post; 53, round head; 54, end face groove; 55, groove; 56, torsion spring; 57, cross groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to make the purpose and advantages of the present utility model more clear and understandable, the present utility model will be specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific implementation manners of the present utility model, and does not strictly limit the scope of protection specifically claimed for the present utility model.

[0022] As Figures 1-5 shown, a tool bit replacement interface structure includes a tool shank 1 and a tip 2. The tip 2 is integrally connected to one end of the tool shank 1. An installation groove 3 is provided at one end of the tip 2. A detachable tool bit 4 is arranged inside the installation groove 3. A connecting component 5 is provided at the top of the tip 2. The tool bit 4 is snap-connected to the inside of the installation groove 3 through the connecting component 5. The connecting component 5 includes a stepped groove 51 provided at the top of the tip 2. The stepped groove 51 penetrates the installation groove 3. A positioning column 52 is rotatably connected inside the stepped groove 51 through a bearing. One end of the positioning column 52 is fixedly connected with a round head 53. End face grooves 54 are symmetrically arranged on the side wall of the positioning column 52. The tool bit 4 includes a tool bit body 41. The tool bit body 41 is inserted into the installation groove 3. A pushing groove 42 is provided at one end of the tool bit body 41. A clamping groove 43 is provided at one end of the pushing groove 42. The distance between the two end face grooves 54 is equal to the width of the pushing groove 42. The diameter of the positioning column 52 is equal to the diameter of the clamping groove 43. A cross groove 57 is provided at one end of the round head 53.

[0023] According to the above structure, when replacing the tool bit, insert the head of a screwdriver into the cross groove 57, rotate the round head 53 by 90 degrees to make the end face of the end face groove 54 parallel to the pushing groove 42, and then pull out the tool bit body 41 outward to pull out the entire tool bit 4 from the inside of the installation groove 3. Then insert a new tool bit 4. When inserting, as the tool bit body 41 slides into the installation groove 3, the part of the pushing groove 42 between the two end face grooves 54 is crossed. When the tool bit body 41 completely slides into the installation groove 3, the part between the two end face grooves 54 slides into the clamping groove 43. Then rotate the round head 53 by 90 degrees again to make the part between the two end face grooves 54 stuck inside the clamping groove 43, thereby clamping the tool bit body 41 inside the installation groove 3 and preventing the tool bit body 41 from sliding outwards. This structure fixes the tool bit body 41 by means of rotational clamping, with simple operation and convenient tool bit replacement. When replacing the tool bit, there is no need to forcefully screw and tighten. During work, the vibration of the tool will not cause the tool bit body 41 to become loose.

[0024] As Figure 3 shown, a flaring groove 44 is provided at one end of the pushing groove 42.

[0025] According to the above structure, the setting of the flaring groove 44 can expand the port of the pushing groove 42, which is convenient for the part of the pushing groove 42 between the two end face grooves 54 to be crossed during installation.

[0026] As Figure 1 and3 As shown, sliding grooves 31 are provided at both ends of the installation groove 3, and sliding strips 45 are provided at the top and bottom of the cutter head body 41. The two sliding strips 45 are respectively slidably connected inside the two sliding grooves 31.

[0027] According to the above structure, when installing the cutter head body 41, the two sliding strips 45 slide into the two sliding grooves 31 respectively, improving the stability of the installation of the cutter head 4.

[0028] As Figure 5 shown, a groove 55 is provided at one end of the positioning post 52, and a torsion spring 56 is provided inside the groove 55. The two ends of the torsion spring 56 are respectively fixedly connected to one end of the inner wall of the groove 55 and one end of the inner wall of the stepped groove 51.

[0029] According to the above structure, when the positioning post 52 is rotated so that the end face groove 54 is parallel to the pushing groove 42, the torsion spring 56 is twisted. After the installation of the cutter head body 41 is completed, under the action of the elastic restoring force of the torsion spring 56, the positioning post 52 automatically rotates in the reverse direction, so that the positioning post 52 is stuck inside the card slot 43, and the reverse rotation of the positioning post 52 can be avoided during work, resulting in the loosening of the cutter head body 41.

[0030] The working principle of the present utility model is as follows: When replacing the cutter head, insert the head of the screwdriver into the cross groove 57, rotate the round head 53 by 90 degrees to make the end face of the end face groove 54 parallel to the pushing groove 42, and then pull out the cutter head body 41 outward to pull out the entire cutter head 4 from the inside of the installation groove 3. Then insert a new cutter head 4. When inserting, as the cutter head body 41 slides into the installation groove 3, the pushing groove 42 slides across the part between the two end face grooves 54. After the cutter head body 41 completely slides into the installation groove 3, the part between the two end face grooves 54 slides into the card slot 43. Then rotate the round head 53 by 90 degrees again to make the part between the two end face grooves 54 stuck inside the card slot 43, thereby clamping the cutter head body 41 inside the installation groove 3 and preventing the cutter head body 41 from sliding outwards. This structure fixes the cutter head body 41 by means of rotational engagement, with simple operation and convenient cutter head replacement. When replacing the cutter head, there is no need to forcefully tighten and press. During work, the vibration of the tool will not cause the loosening of the cutter head body 41. The setting of the flaring groove 44 can expand the port of the pushing groove 42, facilitating the pushing groove 42 to slide across the part between the two end face grooves 54 during installation. When installing the cutter head body 41, the two sliding strips 45 slide into the two sliding grooves 31 respectively, improving the stability of the installation of the cutter head 4. When the positioning post 52 is rotated so that the end face groove 54 is parallel to the pushing groove 42, the torsion spring 56 is twisted. After the installation of the cutter head body 41 is completed, under the action of the elastic restoring force of the torsion spring 56, the positioning post 52 automatically rotates in the reverse direction, so that the positioning post 52 is stuck inside the card slot 43, and the reverse rotation of the positioning post 52 can be avoided during work, resulting in the loosening of the cutter head body 41.

[0031] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model. The structures, devices, and operation methods not specifically described and explained in the present utility model, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A slotting tool changing interface structure, comprising a tool handle (1) and an end (2), characterized in that: The end head (2) is integrally connected to one end of the knife handle (1); a mounting groove (3) is provided at one end of the end head (2); a detachable knife head (4) is provided inside the mounting groove (3); a connecting component (5) is provided at the top of the end head (2); the knife head (4) is snap-fitted and connected to the inside of the mounting groove (3) through the connecting component (5); the connecting component (5) comprises a stepped groove (51) provided at the top of the end head (2); the stepped groove (51) passes through the mounting groove (3); a positioning column (52) is rotatably connected inside the stepped groove (51) via a bearing; a round head (53) is fixedly connected to one end of the positioning column (52); and end face grooves (54) are symmetrically provided on the side walls of the positioning column (52).

2. A slotting tool changing interface structure according to claim 1, characterized in that: Both ends of the installation groove (3) are provided with sliding grooves (31).

3. A slotting tool changing interface structure according to claim 2, characterized in that: The cutter head (4) comprises a cutter head body (41), the cutter head body (41) is inserted into the interior of the mounting groove (3), one end of the cutter head body (41) is provided with a thrust groove (42), and one end of the thrust groove (42) is provided with a clamping groove (43).

4. A slotting tool changing interface structure according to claim 3, characterized in that: The distance between the two end surface grooves (54) is equal to the width of the push groove (42), and the diameter of the positioning column (52) is equal to the diameter of the clamping groove (43).

5. A slotting tool changing interface structure according to claim 4, characterized in that: One end of the pushing groove (42) is provided with a flaring groove (44).

6. A slotting tool changing interface structure according to claim 5, characterized in that: The top and bottom ends of the cutter head body (41) are both provided with slide bars (45), and the two slide bars (45) are respectively slidably connected inside the two slide grooves (31).

7. A slotting tool changing interface structure according to claim 6, characterized in that: A groove (55) is provided at one end of the positioning column (52), a torsion spring (56) is provided inside the groove (55), and two ends of the torsion spring (56) are respectively fixedly connected to one end of the inner wall of the groove (55) and one end of the inner wall of the stepped groove (51).

8. A slotting tool changing interface structure according to claim 7, characterized in that: One end of the round head (53) is provided with a cross groove (57).

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