Accurate chamfering device for automobile parts

Abstract

The utility model discloses a precise chamfering device for automobile parts, which relates to the technical field of automobile part processing, and comprises a cutter for chamfering a hole site of a part and an auxiliary structure for positioning the cutter, the cutter comprises a cutter head and a cutter handle, the cutter handle and the cutter head are coaxially arranged and fixedly connected, and the cutter head and the cutter handle are fixedly connected. The auxiliary structure comprises a positioning cover provided with a positioning hole, the cutter handle perpendicularly penetrates through the positioning hole and is rotationally connected with the positioning cover, and the cutter head extends out of the positioning cover by a certain length corresponding to the chamfering depth. According to the utility model, the auxiliary structure is arranged corresponding to the cutter, so that the cutter is ensured to execute the chamfering operation in the direction perpendicular to the hole site to be processed, the situation that the chamfering effect is influenced by the inclination of the cutter in the chamfering process is avoided, the chamfering processing precision of the hole site is improved, and the chamfering quality and the appearance consistency are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts processing, in particular to a precise chamfering device for automobile parts. Background Art

[0002] During the processing of automobile steering knuckles and other parts, it is usually necessary to chamfer each hole of the parts. With the increase in the types of automobiles, the categories of automobile parts are also increasing. When chamfering the holes of parts, due to the requirements of the parts holes and the avoidance of the installation, the chamfering features of some holes need to be completed manually. That is, the operator holds a hand drill equipped with a conical chamfering tool to chamfer the holes. In this chamfering method, the chamfering size is difficult to be effectively guaranteed, and it is easy to have problems such as chamfer deviation, uneven chamfering depth, and poor appearance consistency. The chamfering quality cannot meet the increasingly high standard requirements.

[0003] Based on this, developing a special device for precise chamfering of automotive parts for application in actual production to assist manual chamfering operations to ensure the quality of chamfering of component holes is a technical problem that needs to be solved urgently. Utility Model Content

[0004] The purpose of the utility model is to provide a precise chamfering device for automobile parts in view of the above problems, so as to solve the problem that the existing chamfering tools cannot guarantee the chamfering quality.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A precise chamfering device for automobile parts comprises a tool for chamfering a hole of a part and an auxiliary structure for positioning the tool, wherein the tool comprises a tool head and a tool handle, the tool handle is coaxially arranged with the tool head and fixedly connected, the auxiliary structure comprises a positioning cover with a positioning hole, the tool handle vertically penetrates the positioning hole and is rotatably connected to the positioning cover, and the tool head extends out of the positioning cover by a certain length corresponding to the chamfering depth.

[0007] Preferably, the tool is arranged in a fixed axial position relative to the positioning cover.

[0008] Preferably, the length of the cutter head extending out of the positioning cover is adjustable and fixed.

[0009] Preferably, the positioning cover is floatingly connected to the tool handle, a limit stop is circumferentially arranged on the tool handle, and a spring is arranged between the limit stop and the upper end surface of the positioning cover so that the tool can be telescopically connected to the positioning cover.

[0010] Preferably, the auxiliary structure also includes a limit plate, which is rotatably connected to the tool handle, and a plurality of guide holes are opened on the limit plate. A guide column fixedly connected to the positioning cover slides in the guide hole, and a plug set corresponding to the aperture of the guide hole is fixedly connected to the top of the guide column, and a spring is arranged between the limit plate and the positioning cover.

[0011] Preferably, a guide sleeve is extended axially along the positioning hole at the center of the positioning cover, and the inner diameter of the guide sleeve is set corresponding to the outer diameter of the tool handle, so that the inner diameter of the guide sleeve is slidably matched with the tool handle to increase the guiding effect of the positioning cover on the tool handle.

[0012] The beneficial effects of the utility model are:

[0013] The utility model arranges an auxiliary structure corresponding to the tool to ensure that the tool performs the chamfering operation in a direction perpendicular to the hole to be processed, avoids the situation where the tool is skewed during the chamfering process and affects the chamfering effect, improves the processing accuracy of the hole chamfering, and ensures the chamfering quality and appearance consistency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0016] Figure 2 It is a schematic cross-sectional structure diagram of the first embodiment of the utility model.

[0017] Figure 3 It is a schematic cross-sectional structure diagram of the second embodiment of the utility model.

[0018] Figure 4 It is a schematic cross-sectional structure diagram of the third embodiment of the utility model.

[0019] In the figure: 1--tool; 11--tool head; 12--tool handle; 13--limit stop; 14--spring; 21--positioning cover; 22--limiting plate; 23--guide column; 24--plug; 25--guide sleeve. DETAILED DESCRIPTION

[0020] like Figure 1-4As shown, a precise chamfering device for automobile parts includes a tool 1 for chamfering holes of parts and an auxiliary structure for positioning the tool 1 during the chamfering process. The tool 1 includes a tool head 11 and a tool handle 12. The tool head 11 is set corresponding to the aperture of the hole to be processed. The tool handle 12 is coaxially arranged and fixedly connected with the tool head 11. The auxiliary structure includes a positioning cover 21. The positioning cover is in an inverted cylindrical shape. A positioning hole is opened on the positioning cover 21. The tool handle 12 vertically penetrates the positioning hole and is rotatably connected to the positioning cover 21. The tool head 11 extends out of the positioning cover 21 by a certain length corresponding to the chamfering depth.

[0021] When in use, the tail end of the tool handle 12 is clamped on the rotating tool, and the tool head 11 is aligned with the hole to be chamfered to perform chamfering. During this process, the positioning cover 21 can be attached to the surface of the workpiece, and the positioning and guiding function of the positioning hole ensures that the tool 1 completes the chamfering operation in a direction perpendicular to the hole to be processed, thereby avoiding the tool 1 from tilting during the chamfering process, thereby ensuring the chamfering quality.

[0022] First embodiment

[0023] like Figure 2 As shown in the figure, as a first embodiment of the precise chamfering device for automobile parts, the axial position of the tool 1 relative to the positioning cover 21 is fixed, that is, the positioning cover 21 has no axial freedom on the tool handle 12. The length of the tool head 11 extending out of the positioning cover 21 is fixedly set corresponding to the chamfering depth of the hole to be processed, ensuring the consistency of the chamfering depth.

[0024] Furthermore, the length of the tool head 11 extending out of the positioning cover 21 is adjustable and fixed to meet the processing requirements of different chamfering depths.

[0025] Second embodiment

[0026] like Figure 3 As shown, in order to ensure that the tool 1 and the hole to be processed remain vertical throughout the chamfering operation, as a second embodiment, the positioning cover 21 is connected to the tool handle 12 in a floating manner, that is, the positioning cover 21 has axial freedom relative to the tool handle 12. Specifically, a limit stop 13 is provided on the tool handle 12 along the circumference, and a spring 14 is provided between the limit stop 13 and the upper end surface of the positioning cover 21, so that the tool 1 can be retractably connected to the positioning cover 21. During processing, the positioning cover 21 can be attached to the workpiece surface earlier under the elastic force of the spring 14, and plays a positioning role for the tool 1. Pressing the tool 1 to overcome the elastic force of the spring 14 can make the cutter head 11 continue to move downward until the limit stop 13 is attached to the upper end surface of the positioning cover 21, completing the chamfering operation of a fixed depth.

[0027] Third embodiment

[0028] like Figure 4As shown, in order to further ensure the verticality of the tool 1 relative to the hole to be processed, the auxiliary structure also includes a limit plate 22, which is rotatably connected to the tool handle 12, and a plurality of guide holes are opened on the limit plate 22. A guide column 23 fixedly connected to the positioning cover 21 is slidably matched in the guide hole, and a plug 24 corresponding to the aperture of the guide hole is fixedly connected to the top of the guide column 23, and a spring 14 is arranged between the limit plate 22 and the positioning cover 21. When in use, the tool handle 12 drives the limit plate 22 downward under the pressure to overcome the elastic force of the spring 14, and the limit plate 22 maintains a direction perpendicular to the hole under the guidance of the guide column 23 to complete the chamfering operation on the hole. After completion, the limit plate 22 is separated from the positioning cover 21 and returned to its original position under the elastic force of the spring 14.

[0029] Furthermore, a guide sleeve 25 is extended axially along the positioning hole at the center of the positioning cover 21, and the inner diameter of the guide sleeve 25 is set corresponding to the outer diameter of the tool handle 12, so that the inner diameter of the guide sleeve 25 is slidably matched with the tool handle 12 to increase the guiding effect of the positioning cover 21 on the tool handle 12, thereby further ensuring the verticality of the tool 1 relative to the hole to be processed and improving the chamfering quality.

[0030] The above disclosure is only a specific embodiment of the present patent, but the present patent is not limited thereto. For ordinary technicians in this field, without departing from the principle of the present invention, the deformation made should be deemed to belong to the protection of the present invention.

Claims

1. A precise chamfering device for automobile parts, characterized in that: The invention comprises a tool (1) for chamfering a hole of a component and an auxiliary structure for positioning the tool (1), wherein the tool (1) comprises a tool head (11) and a tool handle (12), the tool handle (12) being coaxially arranged with the tool head (11) and fixedly connected, the auxiliary structure comprising a positioning cover (21) having a positioning hole, the tool handle (12) vertically passing through the positioning hole and being rotatably connected to the positioning cover (21), the tool head (11) extending out of the positioning cover (21) by a certain length corresponding to the chamfering depth; the positioning cover (21) is floatingly connected to the tool handle (12), and a limit stop is circumferentially arranged on the upper edge of the tool handle (12). (13), a spring (14) is arranged between the limit stop (13) and the upper end surface of the positioning cover (21), so that the tool (1) can be telescopically connected to the positioning cover (21); the auxiliary structure also includes a limit plate (22), the limit plate (22) is rotatably connected to the tool handle (12), a plurality of guide holes are opened on the limit plate (22), a guide column (23) fixedly connected to the positioning cover (21) is slidably matched in the guide hole, a plug (24) arranged corresponding to the aperture of the guide hole is fixedly connected to the top of the guide column (23), and a spring (14) is arranged between the limit plate (22) and the positioning cover (21).

2. The precise chamfering device for automobile parts according to claim 1, characterized in that: The tool (1) is fixedly arranged in an axial position relative to the positioning cover (21).

3. The precise chamfering device for automobile parts according to claim 2, characterized in that: The length of the cutter head (11) extending out of the positioning cover (21) is adjustable and fixed.

4. The precise chamfering device for automobile parts according to claim 1, characterized in that: A guide sleeve (25) is provided at the center of the positioning cover (21) along the axial direction of the positioning hole. The inner diameter of the guide sleeve (25) is set to correspond to the outer diameter of the tool handle (12), so that the inner diameter of the guide sleeve (25) and the tool handle (12) are slidably matched to increase the guiding effect of the positioning cover (21) on the tool handle (12).

Images