Hobbing cutter head

Abstract

The utility model provides a hobbing cutterhead which comprises a hobbing cutterhead body, a cutter tooth installation frame, a cutter tooth body and a lower limiting piece, and three sets of adjusting sliding grooves used for assisting the cutter tooth installation frame in moving up and down are formed in the lower surface of the hobbing cutterhead body. The hobbing cutter head has the advantages that the hobbing cutter head body and the cutter tooth bodies are additionally arranged, the cutter tooth bodies are embedded into the embedding grooves and fixed through the bolts, the adjusting sliding blocks and the adjusting sliding grooves are installed on the outer side of the hobbing cutter head body in an embedded mode, and the bolts penetrate through the fixing grooves to be connected with the fixing threaded holes in a screwed mode. The cutter tooth mounting frame is fixed, the cutter tooth body can be independently disassembled, assembled and replaced, the vertical position adjustment of the cutter tooth mounting frame can be assisted by additionally arranging the hobbing cutter head body and the cutter tooth mounting frame, the lower limiting piece is fixed to the inner side of the fixing frame by additionally arranging the hobbing cutter head body and the lower limiting piece, and the moving lower end of the cutter tooth mounting frame can be limited.

Description

Technical Field

[0001] The utility model belongs to the technical field of gear hobbing cutter discs, in particular to a gear hobbing cutter disc. Background Art

[0002] Gear hobs, also known as hobs, are key tools used on gear hobbing machines to cut gear teeth. Their precision design ensures accurate tooth profiles and tooth orientations. Hobs can be broadly categorized by structure, including disc and drum types, and are widely used in gear production in the automotive, aviation, and machine tool industries. Hobbing cutters are mostly one-piece, with teeth evenly distributed and integrated onto the outside of the cutterhead. During use, the cutterhead is fixed to the outside of a rotating component, and the teeth rotate with the cutterhead to machine the workpiece. As components in direct contact with the workpiece, the teeth are subject to continuous wear during use. Once a certain degree of wear is reached, the cutterhead becomes unusable. The degree of wear varies from tooth to tooth, and some teeth may even break in unexpected situations. If a sufficient number of severely damaged teeth are present, the workpiece machining performance will be compromised, necessitating replacement of the entire cutterhead, resulting in wasted use.

[0003] In summary, there are some problems in the use of the integrated gear hobbing cutter head, so it is hoped to propose a new structure to solve the above technical problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a gear hobbing cutter to solve the problems raised in the above background technology.

[0005] The utility model is realized through the following technical solutions: a gear hobbing cutter disc, comprising: a gear hobbing cutter disc main body, a cutter tooth mounting frame, a cutter tooth main body and a lower limit piece, three groups of adjustment slots for assisting the cutter tooth mounting frame to move up and down are opened on the lower surface of the gear hobbing cutter disc main body, a group of adjustment screws for driving the cutter tooth mounting frame to move and adjust are provided on the inner side of each group of the adjustment slots, three groups of cutter tooth mounting frames for mounting the cutter tooth main body are installed on the outer side of the adjustment slots, the outer end of the internal component of the cutter tooth mounting frame is provided with a mounting ring frame, and several groups of cutter tooth main bodies are installed on the outer side of the mounting ring, and a lower limit piece for limiting the lower end movement of the cutter tooth mounting frame is provided at the lower end of the inner side of the adjustment slot.

[0006] As a preferred embodiment, three groups of fixing brackets are provided on the outer side of the gear hobbing cutter body and are equally distributed on the circumference. The fixing brackets are vertically penetrated through the side surface of one end away from the center of the gear hobbing cutter body to form a fixing groove.

[0007] As a preferred embodiment, the outer side surface of the mounting ring frame is provided with several groups of fitting grooves for fixing the tooth body, the lower surface of the fitting groove is provided with a first mounting threaded hole, and the upper surface of the tooth body is vertically penetrated to form a second mounting threaded hole.

[0008] As a preferred embodiment, the end of the mounting threaded hole of the tooth body is engaged with the engaging groove and is connected and fixed by screwing a bolt into the inner side of the mounting threaded hole one and the mounting threaded hole two. The outer side of the mounting ring frame is also provided with three groups of fixing threaded holes equally distributed in a circle. The tooth body is embedded in the engaging groove, and a bolt is used to screw into the inner side of the mounting threaded hole one and the mounting threaded hole two to fix the tooth body to the outer side of the mounting ring frame.

[0009] As a preferred embodiment, three groups of adjusting sliders that are equally distributed on the circumference are fixedly connected to the inner side of the mounting ring frame, and the three groups of adjusting slots are also equally distributed on the circumference. The adjusting sliders and the adjusting slots are movably engaged with each other, so that the adjusting sliders slide up and down inside the adjusting slots, thereby adjusting the upper and lower positions of the tooth mounting frame, and fixing the tooth mounting frame by passing the bolts through the fixing slots and screwing them into the fixing threaded holes.

[0010] As a preferred embodiment, one of the three groups of adjusting sliders has an upper surface vertically penetrated to form an adjusting threaded hole, and the adjusting screw and the adjusting threaded hole are movably engaged with each other. The upper surfaces of the other two groups of adjusting sliders are vertically penetrated to form through holes, and the upper ends of the adjusting screws are fixedly connected to adjusting hexagonal heads. The adjusting screws are rotated by rotating the adjusting hexagonal heads, so that the cooperation between the adjusting screws and the adjusting threaded holes drives the knife tooth mounting frame to move up and down, which can assist in adjusting the position of the knife tooth mounting frame.

[0011] As a preferred embodiment, a limiting threaded hole is provided at the lower end of one side surface of the fixing frame, and a limiting slider is provided at one end of the lower limiting member close to the gear hobbing cutter head body, and the rear end of the limiting slider is fixedly connected to the limiting interlocking block;

[0012] The side surface of one side of the limit fitting block is provided with a second limit threaded hole, the limit sliding block and the adjusting slide groove are fitted with each other, the limit fitting block and the fixing groove are fitted with each other and are fixed by screwing bolts into the limit threaded hole one and the inner side of the limit threaded hole two, the limit sliding block is fitted with the adjusting slide groove, and the limit fitting block is fitted with the lower end of the fixing groove, and the lower limit piece is connected and fixed to the fixing frame with bolts, so as to limit the movement of the lower end of the knife tooth mounting frame.

[0013] After adopting the above technical scheme, the beneficial effects of the utility model are as follows: by adding a gear hobbing cutter disc body, a cutter disc mounting frame and a cutter tooth body, the cutter tooth body is embedded in the engaging groove and fixed with bolts, the adjusting slider is engaged with the adjusting slide groove and installed to the outside of the gear hobbing cutter disc body, and a bolt is used to pass through the fixing groove and screwed into the fixing threaded hole to fix the cutter tooth mounting frame, so that the cutter tooth body can be disassembled and replaced separately. By adding a gear hobbing cutter disc body and a cutter tooth mounting frame, the upper and lower position adjustment of the cutter tooth mounting frame can be assisted. By adding a gear hobbing cutter disc body and a lower limit piece, the limit slider is engaged with the adjusting slide groove, and the limit engaging block is engaged with the lower end of the fixing groove. The lower limit piece is connected and fixed to the fixing frame with bolts, so that the movable lower end of the cutter tooth mounting frame can be limited. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0015] Figure 1 The utility model is a schematic diagram of the overall structure of a gear hobbing cutter head.

[0016] Figure 2 This is a structural schematic diagram of a gear hobbing cutter head main body in a gear hobbing cutter head of the present invention.

[0017] Figure 3 This is a structural schematic diagram of a cutter tooth mounting frame in a gear hobbing cutter head of the present utility model.

[0018] Figure 4 The utility model is a structural schematic diagram of a tooth body in a gear hobbing cutter.

[0019] Figure 5 This is a structural schematic diagram of a lower limit member in a gear hobbing cutter head of the present utility model.

[0020] In the figure, 100-gear hobbing cutter body, 101-adjusting slide, 102-adjusting screw, 103-fixing frame, 104-fixing slot, 105-limiting threaded hole 1, 106-adjusting hexagon socket head;

[0021] 200-tooth mounting bracket, 201-mounting ring bracket, 202-fixing threaded hole, 203-fitting groove, 204-mounting threaded hole 1, 205-adjusting slider, 206-adjusting threaded hole;

[0022] 300-tooth body, 301-installation threaded hole 2;

[0023] 400-lower limit piece, 401-limit slider, 402-limit fitting block, 403-limit threaded hole. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figures 1 to 5 The present invention provides a technical solution: a gear hobbing cutter head, comprising: a gear hobbing cutter head body 100, a cutter tooth mounting frame 200, a cutter tooth body 300 and a lower limit member 400. The lower surface of the gear hobbing cutter head body 100 is provided with three sets of adjustment slots 101 for assisting the cutter tooth mounting frame 200 to move up and down;

[0026] Each set of adjustment chute 101 is provided with a set of adjustment screws 102 for driving the blade tooth mounting frame 200 to move and adjust. Three sets of blade tooth mounting frames 200 for mounting the blade tooth body 300 are installed on the outside of the adjustment chute 101.

[0027] The outer end of the internal component of the tooth mounting frame 200 is provided with a mounting ring frame 201, and several groups of tooth bodies 300 are installed on the outer side of the mounting ring frame 201. The lower end of the inner side of the adjustment slide 101 is provided with a lower limit member 400 for limiting the movement of the lower end of the tooth mounting frame 200.

[0028] Three groups of fixing brackets 103 are equally distributed on the circumference of the gear hobbing cutter head body 100 . A fixing groove 104 is vertically penetrated through the side surface of one end of the fixing bracket 103 away from the center of the gear hobbing cutter head body 100 .

[0029] The outer side of the mounting ring 201 is provided with a plurality of fitting grooves 203 for fixing the cutter body 300 . The lower surface of the fitting groove 203 is provided with a first mounting threaded hole 204 . The upper surface of the cutter body 300 is vertically penetrated to form a second mounting threaded hole 301 .

[0030] The opening end of the mounting threaded hole 301 of the tooth body 300 is engaged with the engaging groove 203 and is fixed by screwing a bolt into the mounting threaded hole 1 204 and the inner side of the mounting threaded hole 2 301. The outer side of the mounting ring frame 201 is also provided with three groups of fixing threaded holes 202 equally distributed in a circle. The tooth body 300 is embedded in the engaging groove 203, and a bolt is used to screw into the mounting threaded hole 1 204 and the inner side of the mounting threaded hole 2 301 to fix the tooth body 300 to the outer side of the mounting ring frame 201.

[0031] Three groups of adjusting sliders 205 equally distributed on the circumference are fixedly connected to the inner side of the mounting ring 201, and the three groups of adjusting slots 101 are also equally distributed on the circumference. The adjusting sliders 205 and the adjusting slots 101 are movably engaged with each other, so that the adjusting sliders 205 slide up and down inside the adjusting slots 101, so as to adjust the upper and lower positions of the tooth mounting frame 200, and to fix the tooth mounting frame 200 by passing the bolts through the fixing slots 104 and screwing them into the fixing threaded holes 202.

[0032] See also Figures 1-4 As the first embodiment of the present utility model: First, the user embeds the open ends of the second mounting threaded holes 301 of several groups of cutter tooth bodies 300 into the fitting grooves 203 opened on the outer side of the mounting ring frame 201, and uses bolts to screw into the first mounting threaded hole 204 and the inner side of the second mounting threaded hole 301, so that the cutter tooth body 300 can be fixed to the outer side of the mounting ring frame 201. Secondly, the user embeds the adjusting slider 205 into the inner side of the adjusting slide groove 101 and slides it up and down. After the position adjustment of the cutter tooth mounting frame 200 is completed, three groups of bolts are used to pass through the fixing grooves 104 opened on the outer sides of the three groups of fixing frames 103 respectively, and then the bolts are screwed into the fixing threaded holes 202 to fix the position of the cutter tooth mounting frame 200, so that the cutter tooth body 300 can be disassembled and replaced separately.

[0033] The upper surface of one of the three groups of adjustment sliders 205 is vertically penetrated to form an adjustment threaded hole 206, and the adjustment screw 102 and the adjustment threaded hole 206 are movably engaged with each other. The upper surfaces of the other two groups of adjustment sliders 205 are vertically penetrated to form through holes, and the upper end of the adjustment screw 102 is fixedly connected to an adjustment inner hexagon head 106. The adjustment screw 102 is driven to rotate by rotating the adjustment inner hexagon head 106, so that the cooperation between the adjustment screw 102 and the adjustment threaded hole 206 drives the knife tooth mounting bracket 200 to move up and down, which can assist in adjusting the position of the knife tooth mounting bracket 200.

[0034] A limiting threaded hole 105 is provided at the lower end of one side of the fixing frame 103. The lower limiting member 400 is internally provided with a limiting slider 401 at one end close to the gear hobbing cutter head body 100. The rear end of the limiting slider 401 is fixedly connected to the limiting interlocking block 402.

[0035] A second limiting threaded hole 403 is provided on one side of the limiting interlocking block 402, the limiting slider 401 is interlocked with the adjusting slide 101, the limiting interlocking block 402 is interlocked with the fixing groove 104 and is fixed by screwing bolts into the limiting threaded hole 105 and the inner side of the limiting threaded hole 2 403, the limiting slider 401 is interlocked with the adjusting slide 101, and the limiting interlocking block 402 is interlocked with the lower end of the fixing groove 104, and the lower limiting member 400 is connected and fixed to the fixing frame 103 with bolts, which can limit the movement of the lower end of the tooth mounting frame 200.

[0036] See also Figure 1-Figure 2 and Figure 5 As the third embodiment of the present utility model: Based on the above-mentioned first embodiment, when adjusting the upper and lower positions of the knife tooth mounting frame 200, the knife tooth mounting frame 200 may be detached due to the adjustment of the lower end exceeding the limit, resulting in the subsequent repeated installation of the knife tooth mounting frame 200, which increases the complexity of use. The user can engage the limit slider 401 with the adjustment slide 101, and engage the limit engaging block 402 with the lower end of the fixing groove 104, and then use a bolt to screw into the inner side of the limit threaded hole 105 and the limit threaded hole 2 403 to connect and fix the lower limit member 400 to the fixing frame 103, so as to limit the movement of the lower end of the knife tooth mounting frame 200.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A gear hobbing cutter head, comprising: The gear hobbing cutter disc body (100), the cutter tooth mounting frame (200), the cutter tooth body (300) and the lower limit member (400) are characterized in that: the lower surface of the gear hobbing cutter disc body (100) is provided with three groups of adjustment slots (101) for assisting the cutter tooth mounting frame (200) to move up and down; Each set of adjusting chute (101) is provided with a set of adjusting screws (102) for driving the blade tooth mounting frame (200) to move and adjust, and three sets of blade tooth mounting frames (200) for mounting the blade tooth body (300) are installed on the outside of the adjusting chute (101); The outer end of the knife tooth mounting frame (200) is provided with a mounting ring frame (201) in its internal components, and a plurality of groups of knife tooth bodies (300) are installed on the outer side of the mounting ring frame (201). The lower end of the inner side of the adjusting slide groove (101) is provided with a lower limiting member (400) for limiting the movement of the lower end of the knife tooth mounting frame (200).

2. The gear hobbing cutter according to claim 1, characterized in that: Three groups of fixing frames (103) are arranged on the outside of the gear hobbing cutter head body (100) and are equally distributed in a circumference. The fixing frames (103) are vertically penetrated through the side surface of one end away from the center of the gear hobbing cutter head body (100) to form a fixing groove (104).

3. The gear hobbing cutter according to claim 2, characterized in that: The outer side surface of the mounting ring frame (201) is provided with a plurality of groups of engaging grooves (203) for fixing the cutter tooth body (300), the lower surface of the engaging groove (203) is provided with a first mounting threaded hole (204), and the upper surface of the cutter tooth body (300) is vertically penetrated to form a second mounting threaded hole (301).

4. The gear hobbing cutter according to claim 3, characterized in that: The opening end of the second mounting threaded hole (301) of the cutter tooth body (300) is engaged with the engaging groove (203) and is connected and fixed by screwing a bolt into the first mounting threaded hole (204) and the inner side of the second mounting threaded hole (301). The outer side surface of the mounting ring frame (201) is also provided with three groups of fixing threaded holes (202) distributed equally around the circumference.

5. The gear hobbing cutter according to claim 1, characterized in that: The inner side of the mounting ring frame (201) is fixedly connected to three groups of adjusting sliders (205) that are equally distributed on the circumference. The three groups of adjusting chutes (101) are also equally distributed on the circumference. The adjusting sliders (205) and the adjusting chutes (101) are movably engaged with each other.

6. The gear hobbing cutter according to claim 5, characterized in that: The upper surface of one of the three groups of adjusting sliders (205) is vertically penetrated to form an adjusting threaded hole (206), and the adjusting screw (102) and the adjusting threaded hole (206) are movably engaged with each other. The upper surfaces of the other two groups of adjusting sliders (205) are vertically penetrated to form through holes, and the upper ends of the adjusting screws (102) are fixedly connected with adjusting hexagonal socket heads (106).

7. The gear hobbing cutter according to claim 2, characterized in that: A limiting threaded hole (105) is provided at the lower end of one side surface of the fixing frame (103); a limiting slider (401) is provided at one end of the internal component of the lower limiting member (400) close to the gear hobbing cutter head body (100); and a limiting engaging block (402) is fixedly connected to the rear end of the limiting slider (401); A second limiting threaded hole (403) is provided on one side of the limiting interlocking block (402), the limiting sliding block (401) and the adjusting sliding groove (101) are interlocked with each other, and the limiting interlocking block (402) and the fixing groove (104) are interlocked with each other and fixed by screwing bolts into the first limiting threaded hole (105) and the inner side of the second limiting threaded hole (403).

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