Rack slotting cutter

Abstract

The utility model relates to the technical field of cutting tools, and discloses a rack slotting cutter which comprises a cutter holder, a serrated cutter is arranged on the cutter holder, cutting teeth are arranged on the serrated cutter, and a serrated cutter mechanism is arranged on the cutter holder. According to the slotting cutter, the slotting cutter is divided into the cutter holder and the serrated cutter, when cutting teeth on the serrated cutter are abraded or damaged, a user can pull the cylinder to enable the first positioning column and the second positioning column to be separated from the positioning holes in the serrated cutter, at the moment, the serrated cutter can be taken down from the cutter holder, the serrated cutter can be detached conveniently, and the machining efficiency is improved. When the serrated knife needs to be installed on the knife holder, the first positioning column and the second positioning column can be inserted into the positioning holes of the serrated knife under the action of the spring, rapid installation of the serrated knife is achieved, the whole slotting knife does not need to be replaced, and the problem of resource waste is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting tools, in particular to a rack gear shaping cutter. Background Art

[0002] In recent years, with the adjustment of the national industrial layout and the booming equipment manufacturing industry, the tool manufacturing industry has developed rapidly, completely breaking through the traditional automobile, motorcycle, engineering machinery, metallurgy and other industries, and beginning to penetrate into various fields of manufacturing. For the processing of racks, rack gear shaping cutters are needed for cutting.

[0003] For example, the patent with announcement number CN205733295U discloses a rack gear shaping cutter, which belongs to the technical field of cutting tools. It solves the problem that the existing rack gear shaping cutter is unreasonable in design and cannot retain the bosses at both ends of the rack. This rack gear shaping cutter includes a disc-shaped body, a connecting hole is provided in the middle of the body, a section of the outer wall of the body is continuously provided with a plurality of cutting teeth, and the remaining section of the outer wall of the body is a tooth portion, the theoretical number of teeth of the cutting teeth is greater than the number of teeth of the processed rack, the actual number of teeth of the cutting teeth is the same as the number of grooves of the processed rack, and the diameter of the tooth portion is smaller than the root circle diameter of the cutting teeth. This rack gear shaping cutter has the advantages of reasonable design and can retain the bosses at both ends of the rack.

[0004] During the long-term processing of the rack, the existing rack gear shaping cutter will have the problem of wear of the cutting teeth, and the entire rack gear shaping cutter needs to be replaced, which easily leads to the problem of waste of resources. Therefore, a rack gear shaping cutter is proposed to solve the above problem. Utility Model Content

[0005] The utility model aims to provide a rack gear shaping cutter to solve the above-mentioned problem.

[0006] To achieve the above object, the utility model provides the following technical solution: a rack gear inserting cutter, comprising a cutter seat, a toothed cutter is arranged on the cutter seat, the toothed cutter is provided with cutting teeth, a toothed cutter mechanism is arranged on the cutter seat, and a through hole is provided on the cutter seat;

[0007] The toothed knife mechanism includes a fixed plate and a guide column, the guide column passes through the fixed plate, a limit plate is fixedly installed on the guide column, a first positioning column is fixedly connected to the side of the limit plate, a spring is sleeved on the guide column, a cylinder is fixedly installed on the guide column, a first positioning hole is opened on the toothed knife, and the first positioning column is inserted into the inside of the first positioning hole.

[0008] Preferably, a key slot is provided at the bottom of the knife seat, the left end of the spring abuts against the limit plate, and the fixing plate is fixedly connected to the knife seat. The key slot can facilitate the installation of the shaft and the transmission of torque.

[0009] Preferably, a second positioning column is fixedly connected to the side wall of the limiting plate, a second positioning hole is opened on the toothed cutter, and the second positioning column is inserted into the inside of the second positioning hole. The second positioning column and the second positioning hole can play a limiting role on the toothed cutter.

[0010] Preferably, the number of the second positioning columns is two, and the two second positioning columns are respectively fixedly connected to the upper end and the lower end of the side surface of the limiting plate. The setting of the limiting plate can facilitate the spring to push the guide column.

[0011] Preferably, a limiting groove is provided on the knife seat, a limiting strip is inserted into the limiting groove, the limiting strip is fixedly connected to the toothed knife, the number of the limiting grooves is three, and the three limiting grooves are provided on the knife seat at equal intervals, and the setting of the limiting strip and the limiting groove can play a limiting role on the toothed knife.

[0012] Preferably, the number of the limiting strips is three, and the three limiting strips are fixedly connected to the side wall of the perforated cutter at equal intervals. The setting of the limiting strips can improve the stability of the perforated cutter installation.

[0013] The utility model provides a rack gear shaping cutter, which has the following beneficial effects:

[0014] (1) The utility model divides the slotting cutter into two parts, a cutter seat and a cutter. When the cutting teeth on the cutter are worn or damaged, the user can pull the cylinder to disengage the first positioning column and the second positioning column from the positioning hole on the cutter. At this time, the cutter can be removed from the cutter seat, which is convenient for disassembly of the cutter. When the cutter needs to be installed on the cutter seat, the first positioning column and the second positioning column can be inserted into the positioning hole of the cutter under the action of the spring, so that the cutter can be quickly installed. There is no need to replace the slotting cutter as a whole, thus avoiding the problem of waste of resources.

[0015] (2) The utility model can make the gear cutter more stably installed on the cutter seat by providing the limit groove and the limit strip, thereby avoiding the instability problem caused by the gear cutter relying only on the first positioning column and the second positioning column, and further improving the practicality of the rack gear cutter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2This is a schematic diagram of the bottom structure of the knife holder of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the knife holder of the utility model;

[0020] Figure 4 This is a schematic diagram of the toothed cutter structure of the utility model.

[0021] In the figure: 1. knife holder; 2. toothed knife mechanism; 201. fixing plate; 202. guide column; 203. spring; 204. limit plate; 205. cylinder; 206. first positioning column; 207. second positioning column; 208. first positioning hole; 209. second positioning hole; 3. toothed knife; 4. cutting teeth; 5. limit groove; 6. limit strip; 7. through hole; 8. keyway. DETAILED DESCRIPTION

[0022] 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.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Embodiment 1:

[0025] like Figure 1-4 As shown, the utility model provides a technical solution: a rack gear inserting cutter, comprising a cutter seat 1, a toothed cutter 3 is arranged on the cutter seat 1, a cutting tooth 4 is provided on the toothed cutter 3, a toothed cutter mechanism 2 is arranged on the cutter seat 1, and a through hole 7 is provided on the cutter seat 1;

[0026] The toothed knife mechanism 2 includes a fixed plate 201 and a guide column 202, the guide column 202 passes through the fixed plate 201, a limit plate 204 is fixedly installed on the guide column 202, a first positioning column 206 is fixedly connected to the side of the limit plate 204, a spring 203 is sleeved on the guide column 202, a cylinder 205 is fixedly installed on the guide column 202, a first positioning hole 208 is opened on the toothed knife 3, and the first positioning column 206 is inserted into the inside of the first positioning hole 208.

[0027] A key slot 8 is provided at the bottom of the tool holder 1, the left end of the spring 203 abuts against the limit plate 204, and the fixing plate 201 is fixedly connected to the tool holder 1. The key slot 8 can facilitate the installation of the shaft and the transmission of torque.

[0028] The side wall of the limiting plate 204 is fixedly connected with a second positioning column 207, and a second positioning hole 209 is opened on the toothed cutter 3. The second positioning column 207 is inserted into the second positioning hole 209. The second positioning column 207 and the second positioning hole 209 can limit the toothed cutter 3.

[0029] There are two second positioning posts 207 , which are respectively fixedly connected to the upper side and the lower side of the limiting plate 204 . The setting of the limiting plate 204 can facilitate the spring 203 to push the guide post 202 .

[0030] In this embodiment, the slotting cutter is divided into two parts, namely, the cutter seat 1 and the tooth cutter 3. When the cutting teeth 4 on the tooth cutter 3 are worn or damaged, the user can pull the cylinder 205 to disengage the first positioning column 206 and the second positioning column 207 from the positioning hole on the tooth cutter 3. At this time, the tooth cutter 3 can be removed from the cutter seat 1, which is convenient for disassembling the tooth cutter 3. When the tooth cutter 3 needs to be installed on the cutter seat 1, the first positioning column 206 and the second positioning column 207 can be inserted into the positioning hole of the tooth cutter 3 under the action of the spring 203, so as to realize the rapid installation of the tooth cutter 3. There is no need to replace the slotting cutter as a whole, thus avoiding the problem of waste of resources.

[0031] Embodiment 2:

[0032] like Figure 1-4 As shown, on the basis of embodiment 1, the utility model provides a technical solution: a limiting groove 5 is provided on the knife seat 1, a limiting strip 6 is inserted into the limiting groove 5, the limiting strip 6 is fixedly connected to the toothed cutter 3, the number of the limiting grooves 5 is three, and the three limiting grooves 5 are provided on the knife seat 1 at equal intervals, and the setting of the limiting strip 6 and the limiting groove 5 can play a limiting role on the toothed cutter 3.

[0033] There are three limit strips 6 , and the three limit strips 6 are fixedly connected to the side wall of the perforated cutter 3 at equal intervals. The arrangement of the limit strips 6 can improve the installation stability of the perforated cutter 3 .

[0034] In this embodiment, by providing the limiting groove 5 and the limiting strip 6, the toothed cutter 3 can be installed on the cutter seat 1 more stably, avoiding the instability problem caused by the toothed cutter 3 relying only on the first positioning column 206 and the second positioning column 207, and further improving the practicality of the rack gear inserting cutter.

[0035] When in use, by dividing the gear cutting tool into two parts, the tool holder 1 and the gear cutting tool 3, when the cutting teeth 4 on the gear cutting tool 3 are worn or damaged, its user can pull out the cylinder 205 to make the first positioning column 206 and the second positioning column 207 disengage from the positioning hole on the gear cutting tool 3. At this time, the gear cutting tool 3 can be removed from the tool holder 1, which is convenient for disassembling the gear cutting tool 3. When the gear cutting tool 3 needs to be installed on the tool holder 1, its first positioning column 206 and the second positioning column 207 can be inserted into the positioning hole of the gear cutting tool 3 under the action of the spring 203, so as to realize the rapid installation of the gear cutting tool 3, and there is no need to replace the gear cutting tool as a whole, thus avoiding the problem of waste of resources; by setting the limiting groove 5 and the limiting strip 6, the gear cutting tool 3 can be installed on the tool holder 1 more stably, avoiding the instability problem caused by the gear cutting tool 3 relying only on the first positioning column 206 and the second positioning column 207, thereby further improving the practicality of the rack gear cutting tool.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rack gear shaping cutter, comprising a cutter holder (1), characterized in that: The knife seat (1) is provided with a toothed knife (3), the toothed knife (3) is provided with cutting teeth (4), the knife seat (1) is provided with a toothed knife mechanism (2), and the knife seat (1) is provided with a through hole (7); The toothed knife mechanism (2) comprises a fixed plate (201) and a guide column (202), the guide column (202) passes through the fixed plate (201), a limit plate (204) is fixedly mounted on the guide column (202), a first positioning column (206) is fixedly connected to the side of the limit plate (204), a spring (203) is sleeved on the guide column (202), a cylinder (205) is fixedly mounted on the guide column (202), a first positioning hole (208) is opened on the toothed knife (3), and the first positioning column (206) is inserted into the inside of the first positioning hole (208).

2. A rack gear shaping cutter according to claim 1, characterized in that: A key slot (8) is provided at the bottom of the knife seat (1); the left end of the spring (203) abuts against the limit plate (204); and the fixing plate (201) is fixedly connected to the knife seat (1).

3. The rack gear shaping cutter according to claim 1, characterized in that: A second positioning column (207) is fixedly connected to the side wall of the limiting plate (204), a second positioning hole (209) is provided on the toothed cutter (3), and the second positioning column (207) is inserted into the interior of the second positioning hole (209).

4. A rack gear shaping cutter according to claim 3, characterized in that: The number of the second positioning columns (207) is two, and the two second positioning columns (207) are respectively fixedly connected to the upper end and the lower end of the side surface of the limiting plate (204).

5. The rack gear shaping cutter according to claim 1, characterized in that: The knife seat (1) is provided with a limiting groove (5), a limiting strip (6) is inserted into the limiting groove (5), and the limiting strip (6) is fixedly connected to the toothed knife (3). The number of the limiting grooves (5) is three, and the three limiting grooves (5) are provided on the knife seat (1) at equal intervals.

6. A rack gear shaping cutter according to claim 5, characterized in that: The number of the limiting strips (6) is three, and the three limiting strips (6) are fixedly connected to the side wall of the toothed cutter (3) at equal intervals.

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