Drilling clamping tool

Abstract

The utility model discloses a drilling and clamping tool which comprises a clamping column, a positioning groove is formed in the top end of the clamping column, and a screw hole is formed in the bottom of the positioning groove. The pressing block is arranged above the clamping column, a connecting column is fixedly arranged at the bottom end of the pressing block, and a screw rod is arranged at the bottom end of the connecting column; the protective pad comprises a gasket arranged below the pressing block, mounting grooves are evenly distributed in the top face of the gasket in the circumferential direction, and supporting rollers are rotationally mounted in the mounting grooves. The drilling and clamping tool is used for positioning and clamping the part according to the outer diameter of the part, is convenient and fast to install, high in clamping efficiency and accurate in positioning, and ensures the machining quality of the part.

Description

Technical Field

[0001] The utility model relates to the technical field of part processing, in particular to a drilling clamping tooling. Background Art

[0002] Many parts need to be drilled during the processing, such as Figure 1 and Figure 2 As shown in the figure, the part is provided with an inner hole, and side holes communicating with the inner hole are uniformly distributed along the circumference on the outer wall. When machining the side holes, since the tolerance of the inner hole is relatively large compared to the tolerance of the side holes, machining the side holes with the inner hole as the positioning is likely to cause the machining size of the side holes to exceed the design requirements. Therefore, a drilling clamping tooling is designed to position and clamp the part by its outer diameter, which is convenient to install, accurate in positioning, and ensures the machining quality of the part. Content of the Utility Model

[0003] In view of the above defects or deficiencies in the prior art, it is desired to provide a drilling clamping tooling that positions and clamps the part by its outer diameter, is convenient to install, has high clamping efficiency, accurate positioning, and ensures the machining quality of the part.

[0004] A drilling clamping tooling provided by the utility model includes:

[0005] A cylindrical clamping column, a circular positioning groove is coaxially opened at the top end of the clamping column, the inner diameter of the positioning groove is in clearance fit with the outer diameter of the bottom end of the part, and a threaded hole is coaxially opened at the bottom of the positioning groove;

[0006] A pressure block is arranged above the clamping column, a connecting column is fixedly arranged at the bottom end thereof, and a screw rod adapted to the threaded hole is coaxially arranged at the bottom end of the connecting column;

[0007] A protective pad includes a washer arranged below the pressure block, mounting grooves are uniformly distributed along the circumference on the top surface of the washer, support rollers are rotatably mounted in the mounting grooves, the support rollers are all arranged along the radial direction of the washer, and the support rollers all protrude from the top surface of the washer.

[0008] Further, the clamping column, the pressure block and the protective pad are all made of stainless steel material.

[0009] Further, the pressure block, the connecting column and the screw rod are integrally formed.

[0010] Further, mounting planes are symmetrically arranged on both sides of the pressure block.

[0011] Further, the outer diameter of the washer is smaller than the outer diameter of the top end of the part and larger than the inner diameter of the top end of the part.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The clamping tooling of the present utility model is provided with a clamping column, a pressing block and a protective pad. When machining the side holes of a part, first embed its bottom into the positioning groove, and then place the protective pad on the top of the part; then pass the connecting rod and screw at the bottom of the pressing block through the inner hole of the part, so that the screw is threadedly connected to the threaded hole, and tighten the pressing block to press and fix the part through the protective pad. The clamping tooling of this application positions and clamps the part by the outer diameter of the part, with convenient installation, high clamping efficiency, accurate positioning, and ensures the machining quality of the part.

[0014] It should be understood that the content described in the utility model content part is not intended to limit the key or important features of the embodiments of the present utility model, nor is it used to limit the scope of the present utility model. Other features of the present utility model will become easily understood through the following description. Brief Description of the Drawings

[0015] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, purposes and advantages of the present utility model will become more obvious:

[0016] Figure 1 is a schematic structural diagram of the drilling clamping tooling;

[0017] Figure 2 is a schematic sectional structure diagram of the drilling clamping tooling;

[0018] Figure 3 is a schematic structural diagram of the drilling clamping tooling.

[0019] Reference numerals in the figures: 1, clamping column; 2, pressing block; 3, protective pad; 4, part;

[0020] 11, positioning groove; 12, threaded hole;

[0021] 21, connecting column; 22, screw; 23, installation plane;

[0022] 31, washer; 32, installation groove; 33, support roller;

[0023] 41, inner hole; 42, side hole. Detailed Description of the Embodiments

[0024] The following further describes the present utility model in detail with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than limiting the utility model. Additionally, it should be noted that for the sake of description, only the parts related to the utility model are shown in the drawings.

[0025] It should be noted that, without conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0026] Please refer to Figures 1 to 3 , an embodiment of the present utility model provides a drilling clamping tooling, including:

[0027] A cylindrical clamping column 1, a circular positioning groove 11 is coaxially opened at the top end of the clamping column 1, the inner diameter of the positioning groove 11 is in clearance fit with the outer diameter of the bottom end of the part 4, and a threaded hole 12 is coaxially opened at the bottom of the positioning groove 11;

[0028] A pressing block 2 is arranged above the clamping column 1, a connecting column 21 is fixedly arranged at the bottom end thereof, and a screw rod 22 adapted to the threaded hole 12 is coaxially arranged at the bottom end of the connecting column 21;

[0029] A protective pad 3 includes a washer 31 arranged below the pressing block 2, mounting grooves 32 are evenly distributed along the circumferential direction on the top surface of the washer 31, support rollers 33 are rotatably mounted in the mounting grooves 32, the support rollers 33 are all arranged along the radial direction of the washer 31, and the support rollers 33 all protrude from the top surface of the washer 31.

[0030] In this embodiment, when machining the side holes 42 of the part 4, first embed its bottom end into the positioning groove 11, and then place the protective pad 3 on the top of the part 4; then pass the connecting rod 21 and the screw rod 22 at the bottom of the pressing block 2 through the inner hole of the protective pad 3 and the part 4, thread the screw rod 22 with the threaded hole 12, and tighten the pressing block 2 to press and fix the part 4 through the protective pad 3. The machining equipment clamps and fixes the clamping column 1, thus realizing the positioning of the axis of the part 4. At this time, each side hole 42 can be processed into a formed shape one by one.

[0031] During the process of tightening the pressing block 2, the pressing block 2 rotates on each support roller 33, and the support roller 33 is rotationally connected to the mounting groove 32 through a rotating shaft, which greatly avoids the relative friction between the washer 31 and the top surface of the part 4, avoids damage to the part 4, and has a good protection effect.

[0032] Preferably, when the support roller 33 is installed, it is made to rotate with a certain damping, so that the support roller 33 is not easily rotated when not subjected to tangential force, ensuring the stability after the pressing block 2 is tightened.

[0033] The clamping tooling of the present application positions and clamps the part 4 according to the outer diameter of the part 4, is convenient to install, has a high clamping efficiency, accurate positioning, and ensures the machining quality of the part 4.

[0034] In a preferred embodiment, the clamping column 1, the pressing block 2 and the protective pad 3 are all made of stainless steel material, having high structural strength, not easily deformed, not easily corroded and rusted, and having a long service life.

[0035] In a preferred embodiment, as Figure 2 shown, the pressing block 2, the connecting column 21 and the screw 22 are integrally formed, with high structural strength and good fixing effect on the part 4.

[0036] In a preferred embodiment, as Figure 1 and Figure 2 shown, mounting planes 23 are symmetrically arranged on both sides of the pressing block 2. By clamping the wrench on the mounting planes 23 on both sides of the pressing block 2, it can be conveniently tightened.

[0037] In a preferred embodiment, as Figure 1 and Figure 2 shown, the outer diameter of the washer 31 is smaller than the outer diameter of the top end of the part 4 and larger than the inner diameter of the top end of the part 4, ensuring that the washer 31 effectively presses and fixes the part 4.

[0038] In the description of this specification, terms such as "connection", "installation", "fixation", etc. should all be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] In the description of this specification, the description of terms such as "one embodiment", "some embodiments", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0040] The above is only the preferred embodiment of this application and is not used to limit this application. For those skilled in the art, this application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims

1. A drilling clamping tooling, characterized in that, Comprising: A cylindrical clamping post (1) with a circular positioning groove (11) coaxially opened at its top end. The inner diameter of the positioning groove (11) is in clearance fit with the outer diameter of the bottom end of the part (4), and a threaded hole (12) is coaxially opened at the bottom of the positioning groove (11); A pressing block (2) is arranged above the clamping post (1), and a connecting post (21) is fixedly arranged at its bottom end. A screw rod (22) adapted to the threaded hole (12) is coaxially arranged at the bottom end of the connecting post (21); A protective pad (3), including a washer (31) arranged below the pressing block (2). Installation grooves (32) are evenly distributed along the circumference on the top surface of the washer (31). Support rollers (33) are rotatably installed in the installation grooves (32). The support rollers (33) are all arranged along the radial direction of the washer (31), and the support rollers (33) all protrude from the top surface of the washer (31).

2. The drilling clamping tooling according to claim 1, characterized in that, The clamping post (1), the pressing block (2) and the protective pad (3) are all made of stainless steel material.

3. The drilling clamping tooling according to claim 2, wherein The pressing block (2), the connecting post (21) and the screw rod (22) are integrally formed.

4. The drilling clamping tooling according to claim 1, wherein Installation planes (23) are symmetrically arranged on both sides of the pressing block (2).

5. The drilling clamping tooling according to claim 1, wherein The outer diameter of the washer (31) is smaller than the outer diameter of the top end of the part (4) and larger than the inner diameter of the top end of the part (4).

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