Drilling compound tool

Abstract

The utility model discloses a drilling compound tool which comprises a tool handle and a tool bit. The cutter bar is inserted into the bottom end of the cutter handle; the cutter is fixedly mounted at the bottom end of the cutter bar; the drilling blades are symmetrically arranged at the bottom end of the cutter; the cutting edges are symmetrically arranged on the side wall of the cutter and are connected with the drilling edges; and the reaming blades are symmetrically arranged on the side wall of the cutter. According to the drilling compound tool, the drilling blade arranged at the bottom of the tool is used for drilling a threaded bottom hole in the surface of an automobile cylinder cover, and meanwhile, when the tool continuously goes deep into the drilled hole, the cutting tool installed on the side wall of the tool cuts burrs and chamfers on the inner wall; by means of the technical scheme, the cutter can cut chamfers of threaded bottom holes while drilling holes, the cutter can conduct drilling, chamfering and chambering machining at the same time through the chambering blades arranged on the side wall of the cutter, the machining efficiency of the threaded bottom holes is improved, and the consistency of the position degree, perpendicularity and roughness of the threaded bottom holes can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of cutters, in particular to a drilling composite cutter. Background Art

[0002] In the process of processing the threaded bottom hole on the cylinder head surface of the automobile, drill bits, chamfering cutters and reaming milling cutters are required to process different processes respectively, so that the drilling machine needs to constantly replace different tools during operation. In addition, due to the deep threaded bottom hole, the iron filings generated during the processing are not easy to be discharged. Therefore, after the workers replace the tools, they need to clean the iron filings remaining in the threaded bottom hole before they can carry out subsequent processing. The continuous replacement of the three tools greatly reduces the processing efficiency of the workpiece, and causes poor consistency in the position, verticality and roughness of the threaded bottom hole, and unstable product quality. Utility Model Content

[0003] The utility model aims to provide a composite drilling tool for solving the above problems.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drilling composite tool comprises:

[0005] Handle;

[0006] Inserted and fixed to the knife rod at the bottom end of the knife handle;

[0007] A tool fixedly mounted on the bottom end of the tool bar;

[0008] A drilling blade symmetrically arranged at the bottom end of the tool;

[0009] A cutting edge symmetrically arranged on the side wall of the tool and connected to the drilling edge;

[0010] The reaming blade is symmetrically arranged on the side wall of the tool.

[0011] Preferably, the side wall of the tool is provided with symmetrically arranged spiral chip removal grooves.

[0012] Preferably, reinforcing ribs arranged in a spiral winding manner are fixedly installed inside the tool.

[0013] Preferably, a groove is formed at the bottom end of the knife handle, a knife rod is fixedly connected to the inside of the groove, and a symmetrically arranged limiting groove is formed on the side wall of the knife rod.

[0014] Preferably, limit blocks are symmetrically arranged in the groove, and side walls of the limit blocks are inserted into the limit grooves.

[0015] Preferably, a fixing block is threadedly connected to the bottom end of the knife handle, and the inner wall of the fixing block is fixed to the knife rod.

[0016] In the above technical scheme, a drilling composite tool provided by the utility model has the following beneficial effects: the tool rod is fixed by the tool handle, so that when the tool handle is driven, the tool rod can be driven to rotate, and the threaded bottom hole on the automobile cylinder head surface is drilled by the drilling blade arranged at the bottom of the tool, and at the same time, when the tool continues to drill deeper, the cutting knife installed on the side wall of the tool cuts the burrs and chamfers on the inner wall, so that the tool can cut the chamfer of the threaded bottom hole while drilling, and the reaming blade arranged on the side wall of the tool allows the tool to process drilling, chamfering and reaming at the same time, which not only improves the processing efficiency of the threaded bottom hole, but also ensures the consistency of the position, verticality and roughness of the threaded bottom hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the structure of the knife handle of the utility model;

[0019] Figure 2 This is a schematic diagram of the tool structure of the utility model.

[0020] Description of reference numerals:

[0021] 1. Tool bar; 2. Tool; 3. Reaming blade; 4. Spiral chip groove; 5. Cutting edge; 6. Drilling blade; 7. Reinforcing rib; 8. Tool handle; 9. Fixing block; 10. Groove; 11. Limit block; 12. Limit groove. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] like Figure 1-2 As shown, a drilling composite tool comprises:

[0024] Handle 8;

[0025] Insert and fix the knife bar 1 at the bottom end of the knife handle 8;

[0026] A tool 2 fixedly mounted on the bottom end of the tool bar 1;

[0027] A drilling blade 6 symmetrically arranged at the bottom end of the tool 2;

[0028] A cutting edge 5 symmetrically arranged on the side wall of the tool 2 and connected to the drilling edge 6;

[0029] The reaming blade 3 is symmetrically arranged on the side wall of the tool 2.

[0030] Specifically, by installing the tool rod 1 into the tool handle 8, the tool handle 8 can drive the tool rod 1 to rotate while rotating, so that the tool rod 1 drives the tool 2 to rotate quickly, and the drilling blade 6 arranged at the bottom of the tool 2 is used to drill the threaded bottom hole on the automobile cylinder head surface, so that the tool 2 can have a drilling function, and the cutting edge 5 arranged on the side wall of the tool 2 is used to cut the chamfer of the threaded bottom hole, so that the tool 2 can have the ability to cut the chamfer while drilling, and at the same time, the reaming blade 3 installed on the side wall of the tool 2 can reame the threaded bottom hole, so that the tool 2 can perform multiple processes such as drilling, chamfering and reaming at the same time, thereby improving the processing efficiency of the threaded bottom hole on the cylinder head surface.

[0031] In the above embodiment, the tool rod 1 is fixed by the tool handle 8, so that when the tool handle 8 is driven, the tool rod 1 can drive the tool 2 to rotate, and the drilling blade 6 arranged at the bottom of the tool 2 is used to drill the threaded bottom hole on the automobile cylinder head surface. At the same time, when the tool 2 continues to drill deeper, the cutting tool installed on the side wall of the tool 2 cuts the burrs and chamfers on the inner wall, so that the tool 2 can cut the chamfer of the threaded bottom hole while drilling, and the reaming blade 3 arranged on the side wall of the tool 2 allows the tool 2 to process drilling, chamfering and reaming at the same time, which not only improves the processing efficiency of the threaded bottom hole, but also ensures the consistency of the position, verticality and roughness of the threaded bottom hole.

[0032] As an embodiment further provided by the present invention, the side wall of the tool 2 is provided with symmetrically arranged spiral chip removal grooves 4.

[0033] Specifically, the spiral chip groove 4 is provided so that the iron chips generated when the tool 2 rotates the hole are accumulated in the spiral chip groove 4, and the iron chips are driven to move continuously to the top of the tool 2 and discharged from the thread bottom hole during the continuous rotation.

[0034] As another embodiment further provided by the present invention, a reinforcing rib 7 arranged in a spiral winding manner is fixedly installed inside the cutter 2 .

[0035] Specifically, the strength of the cutter 2 is improved by the reinforcing ribs 7 spirally wound inside the cutter 2, so that the cutter 2 is more stable during cutting and has a longer service life.

[0036] As another embodiment further provided by the present invention, a groove 10 is provided at the bottom end of the knife handle 8, a knife rod 1 is fixedly connected inside the groove 10, and a symmetrically arranged limiting groove 12 is provided on the side wall of the knife rod 1.

[0037] Furthermore, a limiting block 11 is symmetrically arranged in the groove 10 , and a side wall of the limiting block 11 is inserted into the limiting groove 12 .

[0038] Specifically, by inserting the tool rod 1 into the groove 10, it is pre-fixed in the groove 10, and at the same time, the limit block 11 installed in the groove 10 is inserted into the limit groove 12, so that the limit block 11 provides a limiting effect on the tool rod 1, so that the handle 8 drives the tool rod 1 to rotate more stably.

[0039] As another embodiment further provided by the present invention, the bottom end of the knife handle 8 is threadedly connected with a fixing block 9 , and the inner wall of the fixing block 9 is fixed to the knife rod 1 .

[0040] Specifically, the fixing block 9 is threadedly mounted on the side wall of the knife handle 8 so that the fixing block 9 fixes the knife rod 1 on the knife handle 8 to prevent the knife rod 1 from shaking during the rotation process.

[0041] Working principle: by installing the tool bar 1 into the groove 10 opened at the bottom of the tool handle 8, the limiting block 11 installed in the groove 10 is inserted into the limiting groove 12, so that the tool bar 1 is pre-fixed at the bottom end of the tool handle 8, and the fixing block 9 is threadedly connected to the side wall of the tool handle 8, so that the tool bar 1 is fixed on the tool handle 8. When the tool handle 8 rotates, the tool bar 1 is driven to rotate, so that the tool bar 1 drives the tool 2 to rotate to process the thread bottom hole, and the thread bottom hole is drilled by the drilling blade 6 set at the bottom of the tool 2, and at the same time, the cutting edge 5 cuts the chamfer of the thread bottom hole, so that The tool 2 can cut the chamfer while drilling, and the threaded bottom hole can be expanded by the reaming blade 3 installed on the tool 2, so that the tool 2 can simultaneously process multiple processes such as drilling, chamfering and reaming, thereby making the processing efficiency higher. The spiral chip groove 4 opened on the side wall of the tool 2 discharges the debris generated during the rotary cutting out of the threaded bottom hole to avoid the reduction of cutting accuracy due to iron chips. The strength of the tool 2 is improved by the reinforcing rib 7 spirally wrapped inside the tool 2, so that the strength and toughness of the tool 2 are improved, thereby increasing the service life of the tool 2.

[0042] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A composite drilling tool, characterized in that: include: Handle (8); A knife rod (1) is inserted and fixed to the bottom end of the knife handle (8); A cutting tool (2) fixedly mounted on the bottom end of the cutting tool rod (1); A drilling blade (6) symmetrically arranged at the bottom end of the tool (2); A cutting edge (5) symmetrically arranged on the side wall of the tool (2) and connected to the drilling edge (6); A hole-expanding blade (3) is symmetrically arranged on the side wall of the tool (2).

2. A composite drilling tool according to claim 1, characterized in that: The side wall of the tool (2) is provided with symmetrically arranged spiral chip removal grooves (4).

3. The composite drilling tool according to claim 1, characterized in that: A reinforcing rib (7) arranged in a spiral winding manner is fixedly installed inside the cutter (2).

4. The composite drilling tool according to claim 1, characterized in that: A groove (10) is provided at the bottom end of the knife handle (8), a knife rod (1) is fixedly connected inside the groove (10), and a symmetrically arranged limiting groove (12) is provided on the side wall of the knife rod (1).

5. A composite drilling tool according to claim 4, characterized in that: A limiting block (11) is symmetrically arranged in the groove (10), and a side wall of the limiting block (11) is inserted into the limiting groove (12).

6. The composite drilling tool according to claim 1, characterized in that: The bottom end of the knife handle (8) is threadedly connected to a fixing block (9), and the inner wall of the fixing block (9) is fixed to the knife rod (1).

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