A back boring tool with adjustable and replaceable tool head

Abstract

The utility model discloses an adjustable reverse boring tool with a replaceable blade, which relates to the field of metal cutting technology, and includes a tool handle, wherein an adjustment mechanism is provided at the lower part of the tool handle, a mounting rod is provided below the adjustment mechanism, a mounting plate is slidably connected to the inner wall of the mounting rod, a blade is slidably connected to the inner wall of the mounting plate, and a first spring is fixedly connected to the outer surface of the mounting plate. The utility model has a reasonable design structure, and can squeeze the locking mechanism through the squeezing mechanism, so that the locking mechanism no longer restricts the mounting plate, and under the action of the first spring, the mounting plate is directly ejected, so as to achieve the effect of facilitating the removal of the blade, and the mounting plate and the new blade are inserted into the mounting rod, and the mounting plate and the blade are restricted and fixed by the locking mechanism, so as to achieve the effect of facilitating the installation of the blade, thereby solving the existing problem of first removing the fixing bolts through external tools, and then replacing and fixing the blade, which is relatively cumbersome.

Description

Technical Field

[0001] The utility model relates to the technical field of metal cutting, in particular to a reverse boring tool with an adjustable and replaceable tool head. Background Art

[0002] With the rapid development of the mechanical field, the degree of mechanical automation is getting higher and higher. In the process of metal parts processing, it is usually necessary to open holes in the metal parts. However, when processing inner holes, expanding holes or profiling, ordinary tools cannot do it, so a back boring tool is needed. The back boring tool is a commonly used tool for processing reverse holes in closed cavities and has been widely used.

[0003] The existing back boring tool is generally composed of a tool handle and a blade. The blade is fixed to the end of the tool handle by a fixing bolt, and the blade edge is set toward the other end of the tool handle. When in use, the back boring tool is installed on an external power mechanism, and the power mechanism first drives the back boring tool to be inserted into the hole, and then rotates it, so that the hole is cut by the blade. However, when the blade is severely worn and needs to be replaced, it is necessary to first remove the fixing bolt with an external tool, and then replace and fix the blade, which is rather cumbersome and time-consuming. To this end, we provide a back boring tool with an adjustable and replaceable blade head to solve the above problems. Utility Model Content

[0004] 1) Technical issues solved

[0005] The utility model aims to make up for the deficiencies of the prior art and provides a back boring tool with an adjustable and replaceable cutter head.

[0006] 2) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable reverse boring tool with a replaceable tool head, comprising a tool handle, an adjustment mechanism is provided at the lower part of the tool handle, a mounting rod is provided below the adjustment mechanism, the inner wall of the mounting rod is slidably connected to a mounting plate, the inner wall of the mounting plate is slidably connected to a blade, a first spring is fixedly connected to the outer surface of the mounting plate, one end of the first spring away from the mounting plate is in contact with the mounting rod, a locking mechanism is provided inside the mounting rod, and a squeezing mechanism is provided below the locking mechanism.

[0008] Furthermore, the adjustment mechanism comprises a fixing ring, the inner side surface of the fixing ring is fixedly connected to the knife handle, the upper surface of the mounting rod is fixedly connected to a sliding plate, and the outer surface of the sliding plate is slidably connected to the knife handle.

[0009] Furthermore, the inner wall of the fixing ring is threadedly connected with a threaded rod, and the end of the threaded rod is rotatably connected to the mounting rod.

[0010] Furthermore, the locking mechanism includes a second spring, one end of the second spring is fixedly connected to the mounting rod, and the other end of the second spring is fixedly connected to the insertion rod.

[0011] Furthermore, the outer surface of the insertion rod is slidably connected to the mounting rod, the outer surface of the insertion rod is slidably connected to the mounting plate, the outer surface of the insertion rod is also slidably connected to the blade, and a magnet is fixedly connected to the inner wall of the mounting rod, and the outer surface of the magnet is in contact with the insertion rod.

[0012] Furthermore, the extrusion mechanism includes a push block, the upper surface of which is fixedly connected to a connecting rod, a protective sleeve is provided outside the push block, and the upper surface of the protective sleeve is fixedly connected to the mounting rod.

[0013] Furthermore, an inclined plate is fixedly connected to the upper surface of the connecting rod, an outer surface of the inclined plate is slidably connected to the insertion rod, and an outer surface of the inclined plate is also slidably connected to the mounting rod.

[0014] 3) Beneficial effects:

[0015] Compared with the prior art, the back boring tool with adjustable and replaceable tool head has the following beneficial effects:

[0016] 1. The utility model provides a mounting plate, a locking mechanism and other components, and the extrusion mechanism squeezes the locking mechanism so that the locking mechanism no longer restricts the mounting plate. Under the action of the first spring, the mounting plate is directly ejected, so that the mounting plate and the blade are taken out from the inside of the mounting rod, which achieves the effect of facilitating the removal of the blade. The mounting plate and a new blade are inserted into the mounting rod, and the mounting plate and the blade are restricted and fixed by the locking mechanism, which achieves the effect of facilitating the installation of the blade, thereby solving the problem that when replacing the blade, the existing method needs to first remove the fixing bolts by external tools, and then replace and fix the blade, which is relatively cumbersome and time-consuming.

[0017] 2. The utility model provides an adjustment mechanism and an insertion rod and other components. When the threaded rod is turned, the threaded rod drives the mounting rod to deviate to one side of the handle, so that the blade is adjusted to a suitable position to adapt to openings of different sizes, thereby achieving the effect of increasing applicability. The second spring and the magnet limit the two ends of the insertion rod to prevent the insertion rod from deviating, thereby achieving the effect of increasing stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a cross-sectional view of the fixing ring in the utility model;

[0020] Figure 3 It is a cross-sectional view of the protective cover in the utility model;

[0021] Figure 4 It is a cross-sectional view of the mounting plate in the utility model;

[0022] Figure 5 It is a cross-sectional view of the installation rod in the utility model.

[0023] In the figure: 1. knife handle; 2. adjustment mechanism; 201. fixing ring; 202. sliding plate; 203. threaded rod; 3. mounting rod; 4. mounting plate; 5. blade; 6. first spring; 7. locking mechanism; 701. second spring; 702. insertion rod; 703. magnet; 8. squeezing mechanism; 801. pressing block; 802. connecting rod; 803. inclined plate; 9. protective cover. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-5 As shown, the utility model provides a technical solution: an adjustable reverse boring tool with a replaceable tool head, comprising a tool handle 1, the upper end of the tool handle 1 can be fixed to an external power mechanism, an adjusting mechanism 2 is provided at the lower part of the tool handle 1, a mounting rod 3 is provided below the adjusting mechanism 2, the adjusting mechanism 2 comprises a fixing ring 201, the inner side surface of the fixing ring 201 is fixedly connected to the tool handle 1, a sliding plate 202 is fixedly connected to the upper surface of the mounting rod 3, the outer surface of the sliding plate 202 is slidably connected to the tool handle 1, the sliding plate 202 is T-shaped, a T-slot is provided inside the tool handle 1, the sliding plate 202 slides inside the T-slot, the sliding plate 202 can prevent the mounting rod 3 from deviating during rotation, a threaded rod 203 is threadedly connected to the inner wall of the fixing ring 201, the end of the threaded rod 203 is rotatably connected to the mounting rod 3, and the position of the mounting rod 3 inside the fixing ring 201 can be adjusted by rotating the threaded rod 203.

[0026] The inner wall of the mounting rod 3 is slidably connected with a mounting plate 4, and the inner wall of the mounting plate 4 is slidably connected with a blade 5. The interior of the mounting plate 4 is roughened and has a certain friction force when inserting and pulling out the blade 5. The outer surface of the mounting plate 4 is fixedly connected with a first spring 6, and the end of the first spring 6 away from the mounting plate 4 contacts the mounting rod 3. There are two first springs 6, which are respectively arranged at the upper and lower parts of the mounting plate 4. A locking mechanism 7 is arranged inside the mounting rod 3, and the locking mechanism 7 includes a second spring 701, one end of the second spring 701 is fixedly connected to the mounting rod 3, and the other end of the second spring 701 is fixedly connected with an insertion rod 702, the outer surface of the insertion rod 702 is slidably connected to the mounting rod 3, the outer surface of the insertion rod 702 is slidably connected to the mounting plate 4, and the outer surface of the insertion rod 702 is also slidably connected to the blade 5. The inner wall of the mounting rod 3 is fixedly connected with a magnet 703, the outer surface of the magnet 703 contacts the insertion rod 702, and the material of the insertion rod 702 is made of metal, and the magnet 703 and the insertion rod 702 attract each other.

[0027] The locking mechanism 7 is provided with an extrusion mechanism 8 below, and the extrusion mechanism 8 includes a pressing block 801, and the upper surface of the pressing block 801 is fixedly connected with a connecting rod 802, and a protective sleeve 9 is provided outside the pressing block 801, and the upper surface of the protective sleeve 9 is fixedly connected with the mounting rod 3. The material of the protective sleeve 9 is rubber and can be bent. The protective sleeve 9 wraps the pressing block 801 inside to increase the aesthetics. The upper surface of the connecting rod 802 is fixedly connected with an inclined plate 803, and the outer surface of the inclined plate 803 is slidably connected with the insertion rod 702. The outer surface of the inclined plate 803 is also slidably connected with the mounting rod 3. One side of the inclined plate 803 is an inclined surface, and a rectangular opening is provided in the middle of the insertion rod 702. The inclined surface of the inclined plate 803 contacts the rectangular opening in the insertion rod 702. The second spring 701 makes the insertion rod 702 squeeze the inclined plate 803, so that the inclined plate 803 can move to the lowest part without the action of external force.

[0028] Working principle: When in use, the threaded rod 203 is turned, and the threaded rod 203 drives the mounting rod 3 to move, thereby adjusting the position of the mounting rod 3, adjusting the mounting rod 3 to the center position of the knife handle 1, fixing the knife handle 1 to the external power mechanism, and driving the mounting rod 3 through the opening on the metal part by the external power mechanism, and adjusting the position of the mounting rod 3 according to the required size of the opening, and the threaded rod 203 is turned, and the threaded rod 203 drives the mounting rod 3 to deviate to one side of the knife handle 1, so that the blade 5 is adjusted to a suitable position to adapt to openings of different sizes, thereby achieving the effect of increasing applicability.

[0029] When the blade 5 needs to be replaced, the protective cover 9 is pressed upwards, so that the pressing block 801 drives the connecting rod 802 to move upwards, and the connecting rod 802 drives the inclined plate 803 to move upwards, and the inclined plate 803 presses the insertion rod 702 upwards, so that the insertion rod 702 moves away from the magnet 703, and the insertion rod 702 presses the second spring 701 to pull the insertion rod 702 out of the mounting plate 4. The insertion rod 702 no longer restricts the mounting plate 4, and under the action of the first spring 6, the mounting plate 4 is directly ejected, so that the mounting plate 4 and the blade 5 are taken out from the inside of the mounting rod 3, so as to facilitate the removal of the blade 5. The new blade 5 is inserted into the interior of the mounting plate 4, the protective cover 9 is pressed, the mounting plate 4 and the blade 5 are inserted into the mounting rod 3, and at the same time the mounting plate 4 squeezes the first spring 6 to facilitate the replacement of the blade 5 next time, the protective cover 9 is released, the second spring 701 rebounds, and drives the insertion rod 702 to reset, and the insertion rod 702 is inserted into the interior of the mounting plate 4 and the blade 5, thereby restricting and fixing the mounting plate 4 and the blade 5, achieving the effect of facilitating the installation of the blade 5, and limiting the insertion rod 702 at both ends by the second spring 701 and the magnet 703 to prevent the insertion rod 702 from deviating, thereby achieving the effect of increasing stability.

Claims

1. A back boring tool with an adjustable and replaceable tool head, comprising a tool handle (1), characterized in that: An adjusting mechanism (2) is arranged at the lower part of the knife handle (1), a mounting rod (3) is arranged below the adjusting mechanism (2), the inner wall of the mounting rod (3) is slidably connected to a mounting plate (4), the inner wall of the mounting plate (4) is slidably connected to a blade (5), a first spring (6) is fixedly connected to the outer surface of the mounting plate (4), one end of the first spring (6) away from the mounting plate (4) is in contact with the mounting rod (3), a locking mechanism (7) is arranged inside the mounting rod (3), and a squeezing mechanism (8) is arranged below the locking mechanism (7).

2. The back boring tool with an adjustable and replaceable tool head according to claim 1, characterized in that: The adjustment mechanism (2) comprises a fixing ring (201), the inner side surface of the fixing ring (201) is fixedly connected to the knife handle (1), the upper surface of the mounting rod (3) is fixedly connected to a sliding plate (202), and the outer surface of the sliding plate (202) is slidably connected to the knife handle (1).

3. The back boring tool with an adjustable and replaceable tool head according to claim 2, characterized in that: The inner wall of the fixing ring (201) is threadedly connected to a threaded rod (203), and the end of the threaded rod (203) is rotatably connected to the mounting rod (3).

4. The back boring tool with an adjustable and replaceable tool head according to claim 1, characterized in that: The locking mechanism (7) comprises a second spring (701), one end of the second spring (701) is fixedly connected to the mounting rod (3), and the other end of the second spring (701) is fixedly connected to the insertion rod (702).

5. The back boring tool with an adjustable and replaceable tool head according to claim 4, characterized in that: The outer surface of the insertion rod (702) is slidably connected to the mounting rod (3), the outer surface of the insertion rod (702) is slidably connected to the mounting plate (4), the outer surface of the insertion rod (702) is also slidably connected to the blade (5), and a magnet (703) is fixedly connected to the inner wall of the mounting rod (3), and the outer surface of the magnet (703) is in contact with the insertion rod (702).

6. The back boring tool with an adjustable and replaceable tool head according to claim 5, characterized in that: The extrusion mechanism (8) comprises a push block (801), the upper surface of which is fixedly connected to a connecting rod (802), a protective sleeve (9) is provided outside the push block (801), and the upper surface of the protective sleeve (9) is fixedly connected to the mounting rod (3).

7. The back boring tool with an adjustable and replaceable tool head according to claim 6, characterized in that: The upper surface of the connecting rod (802) is fixedly connected to an inclined plate (803), the outer surface of the inclined plate (803) is slidably connected to the insertion rod (702), and the outer surface of the inclined plate (803) is also slidably connected to the installation rod (3).

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