Double-head boring cutter with adjustable cutter head

Abstract

The boring cutter comprises a cutter bar, a cutter rest and an adjusting part, the cutter bar comprises a sliding groove formed in the top end of the cutter bar, a limiting groove formed in the center of the top end of the cutter bar and an installation cover arranged at the top of the cutter bar, and the cutter rest is arranged in the sliding groove in a sliding mode; the tool rest comprises a threaded groove formed in the tail of the tool rest and a blade arranged at the front end of the tool rest, and the adjusting part is arranged in the tool bar and comprises an adjusting shaft rotationally arranged in a limiting groove, lead screws arranged at the two ends of the adjusting shaft and an adjusting bolt rotationally arranged in the mounting cover. The lead screw is embedded into the threaded groove and is in threaded connection with the threaded groove. By arranging the adjusting part, the adjusting bolt exposed out of the top of the mounting cover can be rotated to drive the adjusting shaft in meshed connection with the adjusting bolt to rotate, so that the knife rest in threaded connection with the lead screws arranged at the two ends of the adjusting shaft slides and displaces along the sliding groove, and the position of the knife rest can be quickly adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of hardware tools, in particular to a double-headed boring tool with an adjustable cutter head. Background Art

[0002] Mechanical processing generally includes turning, planing, milling, drilling, and grinding. Each processing method requires different processing techniques and specialized tools. Common tools include turning tools, milling cutters, planing tools, twist drills, etc., which can meet different product and processing requirements. CNC machine tools are the most widely used processing equipment in the machinery industry. They are generally used for processes such as cutting the outer edges of workpieces, boring holes, and slotting, greatly improving production efficiency.

[0003] When boring holes with existing double-ended boring tools, in order to be able to process holes of different inner diameters, the tool holder inside the tool rod is usually set to be adjustable. When the tool holder position needs to be adjusted, the top installation cover needs to be opened first, and then the position of the internal tool holder can be adjusted. The operation is cumbersome and the adjustment is inconvenient. Utility Model Content

[0004] The purpose of the present utility model is to provide a double-headed boring tool with an adjustable cutter head, so as to solve the problem that the existing double-headed boring tool proposed in the above background technology is that when boring holes, in order to be able to process holes of different inner diameters, the tool holder inside the tool rod is usually set to be adjustable. When the position of the tool holder needs to be adjusted, it is necessary to first open the top installation cover and then adjust the position of the internal tool holder, which is cumbersome to operate and inconvenient to adjust.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a double-headed boring tool with an adjustable cutter head, comprising a tool bar, a tool holder and an adjustment portion:

[0006] The tool rod includes a slide groove opened inside the top end of the tool rod, a limit groove opened at the center of the top end of the tool rod and a mounting cover arranged at the top of the tool rod. The tool holder is provided with two, and the two tool holders are slidably arranged inside the slide groove. The tool holder includes a threaded groove opened at the tail end of the tool holder and a blade arranged at the front end of the tool holder. The adjustment part is arranged inside the tool rod, and the adjustment part includes an adjustment shaft rotatably arranged inside the limit groove, screw rods arranged at both ends of the adjustment shaft and an adjustment bolt rotatably arranged inside the mounting cover. The screw rod is embedded in the threaded groove and is threadedly connected to it. The bottom of the adjusting bolt is meshed with the adjusting shaft. The rotation of the adjusting bolt drives the adjusting shaft to rotate so that the screw rod drives the two tool holders to move along the slide groove.

[0007] By adopting the above technical solution, the adjustment bolt exposed on the top of the mounting cover can be rotated to drive the adjustment shaft engaged with it to rotate, thereby allowing the tool holder threadedly connected to the screw rods at both ends of the adjustment shaft to slide along the slide groove, so that the position of the tool holder can be quickly adjusted.

[0008] Preferably, the knife rod further comprises a mounting groove provided at the top of the knife rod, a guide block provided at the bottom of the mounting cover and a connecting hole provided on the surface of the mounting cover, the guide block being embedded in the mounting groove and the connecting hole being provided directly above the mounting groove.

[0009] By adopting the above technical solution, the installation cover can be quickly aligned with the top of the tool rod through the setting of the guide block, and then the installation cover can be installed on the top of the tool rod by passing the bolt through the installation slot and threading the connecting hole.

[0010] Preferably, the tool holder includes a sliding block arranged at the bottom of the tool holder, and the sliding block is embedded in the sliding groove and is slidably connected thereto.

[0011] By adopting the above technical solution, the slider can be slid along the slide groove inside the tool rod, so that the position of the tool holder can be changed.

[0012] Preferably, two tool holders are provided, and the two tool holders are rotationally symmetrical around the axis of the tool rod.

[0013] By adopting the above technical solution, when the tool rod rotates, the blades arranged at the front ends of the two tool holders can complete the boring operation on the workpiece.

[0014] Preferably, the adjusting portion includes a driven bevel gear arranged in the middle section of the adjusting shaft and a limit block arranged next to the driven bevel gear. The driven bevel gear and the limit block are embedded in the limit groove and are rotatably connected thereto. The screw rods arranged at both ends of the adjusting shaft are rotationally symmetrical around the axis of the tool rod.

[0015] By adopting the above technical solution, the driven bevel gear and the limit block can be inserted into the limit groove, so that the adjustment shaft is located at the center of the top of the tool rod, so that the length from the screw rod at both ends to the tool rod axis is equal.

[0016] Preferably, the knife rod further comprises two pressing blocks arranged at the bottom of the mounting cover, and the bottom of the pressing blocks is provided with a groove which abuts against the adjusting shaft.

[0017] By adopting the above technical solution, the adjustment shaft can be pressed so that it will not be displaced during the rotation process.

[0018] Preferably, the adjusting portion includes an active bevel gear provided at the bottom of the adjusting bolt, and the active bevel gear is meshed with the driven bevel gear.

[0019] By adopting the above technical solution, the active bevel gear can be driven to rotate by the adjusting bolt, which can drive the driven bevel gear meshing with it to rotate, thereby causing the screw rods set at both ends of the adjusting shaft to rotate and drive the tool holder to move.

[0020] Compared with the prior art, the beneficial effect of the present invention is that by providing an adjustment part, the adjustment bolt exposed on the top of the mounting cover can be rotated to drive the adjustment shaft engaged with it to rotate, thereby allowing the tool holder threadedly connected to the screw rods at both ends of the adjustment shaft to slide along the slide groove, so that the position of the tool holder can be quickly adjusted, reducing the operating difficulty of the double-headed adjustable boring tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of this application;

[0022] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this application;

[0023] Figure 3 This is a schematic diagram of the exploded structure of the overall parts of this application;

[0024] Figure 4 A schematic diagram of the cover structure is provided for this application;

[0025] Figure 5 This is a schematic diagram of the tool holder structure for this application;

[0026] Figure 6 This is a structural diagram of the adjustment department of this application.

[0027] In the figure: 1. Tool bar; 101. Slide groove; 102. Limiting groove; 103. Mounting groove; 104. Mounting cover; 105. Connecting hole; 106. Guide block; 107. Pressing block; 2. Tool holder; 201. Threaded groove; 202. Slider; 203. Blade; 3. Adjusting part; 301. Adjusting shaft; 302. Driven bevel gear; 303. Limiting block; 304. Screw; 305. Adjusting bolt; 306. Active bevel gear. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Example 1

[0030] See also Figure 1 、 Figure 2 and Figure 3 The utility model provides a technical solution: a double-headed boring tool with an adjustable cutter head, comprising a tool bar 1, a tool holder 2 and an adjustment part 3:

[0031] The tool rod 1 is a metal round rod as a whole, and two slide grooves 101 are provided on the top of the tool rod 1. The two slide grooves 101 are rotationally symmetrical around the axis of the tool rod 1. A limiting groove 102 is provided between the two slide grooves 101, and the limiting groove 102 is located at the center position of the top of the tool rod 1. A mounting cover 104 is provided on the top of the tool rod 1. There are two tool holders 2. The two tool holders 2 are slidably arranged inside the slide groove 101. The two tool holders 2 are rotationally symmetrical around the axis of the tool rod 1, so that when the tool rod 1 rotates, the blades 203 arranged at the front end of the two tool holders 2 can complete the boring operation on the workpiece. The tool holder 2 includes a threaded groove 201 provided at the tail of the tool holder 2 and a blade 203 arranged at the front end of the tool holder 2. The adjusting part 3 is arranged inside the tool rod 1. The adjusting part 3 includes an adjusting shaft 301 rotatably arranged inside the limiting groove 102, screw rods 304 arranged at both ends of the adjusting shaft 301, and an adjusting bolt 305 rotatably arranged inside the mounting cover 104. The screw rod 304 is embedded in the threaded groove 201 and is threadedly connected thereto. The bottom of the adjusting bolt 305 is meshed with the adjusting shaft 301. The adjusting bolt 305 rotates to drive the adjusting shaft 301 to rotate, so that the screw rod 304 drives the two tool holders 2 to move along the sliding groove 101. By rotating the adjusting bolt 305 exposed at the top of the mounting cover 104, it can drive the adjusting shaft 301 meshed with it to rotate, thereby allowing the tool holder 2 threadedly connected to the screw rods 304 at both ends of the adjusting shaft 301 to slide and move along the sliding groove 101, so that the position of the tool holder 2 can be quickly adjusted.

[0032] Example 2

[0033] See also Figure 3 、 Figure 4 and Figure 5 The utility model provides a technical solution: a double-headed boring tool with an adjustable cutter head, comprising a tool bar 1, a tool holder 2 and a mounting cover 104:

[0034] Four mounting grooves 103 are provided at the top of the tool rod 1, four guide blocks 106 are provided at the bottom of the mounting cover 104, and four connecting holes 105 are provided on the surface of the mounting cover 104. The guide blocks 106 are embedded in the mounting grooves 103, and the connecting holes 105 are provided just above the mounting grooves 103, so that the mounting cover 104 can be quickly aligned with the top of the tool rod 1 through the provision of the guide blocks 106, and then the mounting cover 104 can be installed to the top of the tool rod 1 by means of bolts passing through the mounting grooves 103 and threadedly connected with the connecting holes 105. A slider 202 is provided at the bottom of the tool holder 2, and the slider 202 is embedded in the slide groove 101 and slidably connected thereto, so that the slider 202 can slide and move along the slide groove 101 inside the tool rod 1, so that the position of the tool holder 2 can be changed. Example 3

[0035] See also Figure 2 、 Figure 3 and Figure 4The utility model provides a technical solution: a double-headed boring tool with an adjustable cutter head, comprising an adjusting portion 3, an adjusting shaft 301 and an adjusting bolt 305:

[0036] A driven bevel gear 302 is provided in the middle position of the adjusting shaft 301, and a limit block 303 is provided beside the driven bevel gear 302. The driven bevel gear 302 and the limit block 303 are embedded in the limit groove 102 and are rotatably connected thereto. The screw rods 304 provided at both ends of the adjusting shaft 301 are rotationally symmetrical around the axis of the tool rod 1. The driven bevel gear 302 and the limit block 303 can be inserted into the limit groove 102 so that the adjusting shaft 301 is located at the center of the top of the tool rod 1, thereby making the lengths of the screw rods 304 at both ends to the axis of the tool rod 1 equal. Two pressure rods are provided at the bottom of the mounting cover 104. The bottom of the block 107 is provided with a groove that abuts against the adjusting shaft 301, which can press the adjusting shaft 301 so that it will not be displaced during the rotation. An active bevel gear 306 is provided at the bottom of the adjusting bolt 305. The active bevel gear 306 and the driven bevel gear 302 are meshed and connected. The top of the adjusting bolt 305 is provided with an inner hexagonal groove. The active bevel gear 306 can be driven to rotate by the adjusting bolt 305, which can drive the driven bevel gear 302 meshed with it to rotate, thereby allowing the screw rods 304 set at both ends of the adjusting shaft 301 to rotate, driving the tool holder 2 to displace.

[0037] Working principle: First, insert the hexagonal wrench into the hexagonal groove on the top of the adjusting bolt 305, and then rotate the adjusting bolt 305 to drive the active bevel gear 306 to rotate, which can drive the driven bevel gear 302 engaged with it to rotate, thereby allowing the screw rod 304 set at both ends of the adjusting shaft 301 to rotate, so that the tool holder 2 threadedly connected to the screw rod 304 can slide along the slide groove 101, so that the two tool holders 2 can slide outward or inward at the same time, so that the position of the tool holder 2 can be quickly adjusted, and there is no need to remove the mounting cover 104 during the adjustment process.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-ended boring tool with an adjustable cutter head, characterized in that: include: The knife bar includes a slide groove provided inside the top end of the knife bar, a limit groove provided at the center of the top end of the knife bar, and a mounting cover provided on the top end of the knife bar; A tool holder, wherein two tool holders are provided, and the two tool holders are slidably arranged inside the slide groove, and the tool holder includes a thread groove opened at the rear end of the tool holder and a blade arranged at the front end of the tool holder; The adjusting part is arranged inside the tool rod, and the adjusting part includes an adjusting shaft rotatably arranged inside the limit groove, a screw rod arranged at both ends of the adjusting shaft and an adjusting bolt rotatably arranged inside the mounting cover, the screw rod is embedded in the threaded groove and is threadedly connected to it, and the bottom of the adjusting bolt is engaged with the adjusting shaft, and the rotation of the adjusting bolt drives the adjusting shaft to rotate so that the screw rod drives the two tool holders to move along the slide groove.

2. A double-ended boring tool with an adjustable blade according to claim 1, characterized in that: The knife bar also includes a mounting groove on the top of the knife bar, a guide block on the bottom of the mounting cover and a connecting hole on the surface of the mounting cover. The guide block is embedded in the mounting groove and the connecting hole is arranged just above the mounting groove.

3. The double-ended boring tool with adjustable cutting head according to claim 1, characterized in that: The tool holder comprises a sliding block arranged at the bottom of the tool holder, and the sliding block is embedded in the sliding groove and is slidably connected thereto.

4. The double-ended boring tool with adjustable cutting head according to claim 1, characterized in that: There are two tool holders, and the two tool holders are rotationally symmetrical around the axis of the tool rod.

5. The double-ended boring tool with an adjustable blade according to claim 1, characterized in that: The adjusting part includes a driven bevel gear arranged in the middle section of the adjusting shaft and a limit block arranged next to the driven bevel gear. The driven bevel gear and the limit block are embedded in the limit groove and are rotatably connected to them. The screw rods arranged at both ends of the adjusting shaft are rotationally symmetrical around the axis of the tool rod.

6. The double-ended boring tool with an adjustable blade according to claim 5, characterized in that: The knife rod also includes two pressing blocks arranged at the bottom of the installation cover. The bottom of the pressing block is provided with a groove that abuts against the adjustment shaft.

7. The double-ended boring tool with an adjustable blade according to claim 1, characterized in that: The adjusting portion comprises an active bevel gear arranged at the bottom of the adjusting bolt, and the active bevel gear is meshed with the driven bevel gear.

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