Adjustable T-shaped milling cutter

Abstract

The utility model discloses an adjustable T-shaped milling cutter, which belongs to the technical field of machining and comprises a cutter bar. The lower end of the cutter bar is connected with a cutter; the cutter comprises a blade assembly, a telescopic connecting rod and a fixing nut, the lower end of the cutter bar is fixedly connected with the telescopic connecting rod, the blade assembly is connected to the telescopic connecting rod in an attached mode, and the lower end of the telescopic connecting rod is provided with threads and locked with the fixing nut. The blade assemblies are divided into one group or two groups. The cutter bar drives the blade assembly, the telescopic connecting rod and the fixing nut to rotate, the blade assembly rotating at a high speed makes contact with a workpiece, a cutting edge on the outer edge of the blade assembly makes contact with the workpiece, and therefore machining of the workpiece is achieved. When one blade assembly is arranged, the device is suitable for machining grooves with different depths; and when the two blade assemblies are arranged, the device is suitable for synchronous machining of parallel grooves or batch machining of thick grooves.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to an adjustable T-shaped milling cutter. Background Art

[0002] In industry, milling cutters are often used to mill the side edges of workpieces to form the desired curved surface profile on the workpiece.

[0003] For example, Chinese patent CN218396122U proposes a milling cutter, including a shank and a cutting piece. The shank is made of steel, the shank includes a main body, a clamping piece of a milling machine is sleeved on the main body, and the cutting piece includes a cutting part, the cutting piece is connected to the shank, and the material of the cutting part is cemented carbide. By setting a steel shank and a cemented carbide cutting part, the cost of the milling cutter is greatly reduced. The clamping piece is sleeved on the main body of the shank, and by limiting the value range of the diameter D1 of the main body and the value range of the diameter D2 of the cutting part, the structural strength of the shank can be matched with the cutting strength of the milling cutter, so as to avoid bending of the shank, excessive vibration during use, and other problems, thereby ensuring the cutting quality of the milling cutter.

[0004] However, the above patent is not suitable for synchronous processing of parallel grooves or batch processing of thick grooves, and the scope of application needs to be improved.

[0005] Based on this, the utility model designs an adjustable T-shaped milling cutter to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides an adjustable T-shaped milling cutter.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] Adjustable T-type milling cutter, including shank;

[0009] The lower end of the knife rod is connected with a knife;

[0010] The tool comprises a blade assembly, a telescopic connecting rod and a fixing nut. The lower end of the blade rod is fixedly connected to the telescopic connecting rod, the blade assembly is attached to the telescopic connecting rod, and the lower end of the telescopic connecting rod is provided with a thread and locked with the fixing nut.

[0011] The blade assemblies are divided into one group or two groups.

[0012] Furthermore, when there is only one set of blade assemblies, the blade assemblies are located at the upper end or the lower end of the telescopic connecting rod.

[0013] Furthermore, when there are two groups of blade assemblies, the blade assemblies include a first blade and a second blade, the first blade is located at the upper end of the telescopic connecting rod, and the second blade is located at the lower end of the telescopic connecting rod.

[0014] Furthermore, when the first blade and the second blade are the same size, the first blade and the second blade respectively contact the upper and lower ends of the arc-shaped workpiece, and a fixing block is fixedly connected to the arc-shaped workpiece between the first blade and the second blade.

[0015] Furthermore, when the diameter of the second blade is smaller than that of the first blade, the second blade contacts the first workpiece, the first blade contacts the second workpiece, and the first workpiece and the second workpiece are fixedly connected.

[0016] Furthermore, the telescopic connecting rod includes a sleeve, a sliding rod, a straight groove, an L-shaped groove and a protrusion. The lower end of the knife rod is fixedly connected to the sliding rod, the outer side of the sliding rod is slidingly connected to the sleeve, the sliding rod is provided with a straight groove, and the sliding rod located on one side of the straight groove is provided with multiple groups of L-shaped grooves at equal distances, and the inner side of the sleeve is fixedly connected to the protrusion.

[0017] Furthermore, the protrusion is limitedly engaged in one set of L-shaped grooves.

[0018] Furthermore, the protrusion is located at the inner upper end of the sleeve.

[0019] Furthermore, the outer side of the upper end of the sliding rod is closely connected to the first blade.

[0020] Furthermore, the outer side of the lower end of the sleeve is closely connected to the second blade.

[0021] The utility model has the following technical effects:

[0022] 1. The external power structure of the utility model drives the tool rod to rotate, and the tool rod drives the blade assembly, the telescopic connecting rod, and the fixed nut to rotate. The high-speed rotating blade assembly contacts the workpiece, and the blade edge of the outer edge of the blade assembly contacts the workpiece, thereby realizing the processing of the workpiece; when the blade assembly is a group, it is suitable for processing grooves of different depths; when the blade assembly is two groups, it is suitable for synchronous processing of parallel grooves or batch processing of thick grooves.

[0023] 2. When the blade assembly of the utility model is located at the upper end of the telescopic connecting rod, it is suitable for processing the upper end of the arc groove. At this time, the telescopic connecting rod is located at the lower end of the blade assembly and penetrates into the lower end of the arc groove. The processing position is at the upper end of the arc groove, which is convenient for the constructor to observe the processing situation; when the blade assembly is located at the lower end of the telescopic connecting rod, it is suitable for processing the lower end of the arc groove. At this time, the telescopic connecting rod is located at the upper end of the blade assembly. The telescopic connecting rod extends the blade assembly, which is convenient for the blade assembly to penetrate into the lower end of the arc groove, so as to facilitate the processing of arc grooves of different depths.

[0024] 3. In the utility model, when the first blade and the second blade are the same size, the first blade processes the arc-shaped workpiece located above the fixed block, and at the same time, the second blade processes the arc-shaped workpiece located below the fixed block, thereby realizing synchronous processing of the parallel grooves by the first blade and the second blade; in addition, the length of the telescopic connecting rod can be adjusted to adapt to parallel grooves of different spacings.

[0025] 4. In the utility model, when the diameter of the second blade is smaller than that of the first blade, the second blade performs preliminary processing on the first workpiece. When the thickness of the first workpiece is initially reduced, the first blade performs secondary processing on the first workpiece, thereby realizing batch processing of thick grooves and improving the processing efficiency of thick grooves.

[0026] 5. The utility model pulls the sleeve up and down along the slide bar, and the sleeve slides up and down under the limiting guide action of the slide bar, and the sleeve drives the protrusion to slide up and down under the limiting guide action of the straight groove. When the sleeve reaches the specified position, it stops moving, and the sleeve is rotated at this time, and the sleeve drives the protrusion to rotate, and the protrusion is limited and clamped inside one group of L-shaped grooves, so that the sleeve is limited by the protrusion, and the sleeve and the slide bar are adjusted and self-locking can be achieved; when parallel grooves are processed synchronously, parallel grooves with different intervals can be adapted by adjusting the sleeve and the slide bar; when thick grooves are processed in batches, the processing interval length of the first blade and the second blade can be adjusted by adjusting the sleeve and the slide bar, so as to better adapt to grooves of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 The utility model is an adjustable T-shaped milling cutter. Figure 1 ;

[0029] Figure 2 It is a front view of the adjustable T-shaped milling cutter of the utility model;

[0030] Figure 3 The structure diagram of the adjustable T-type milling cutter of the utility model is shown in FIG. Figure 1 ;

[0031] Figure 4 The structure diagram of the adjustable T-type milling cutter of the utility model is shown in FIG. Figure 2 ;

[0032] Figure 5 The utility model is an adjustable T-shaped milling cutter. Figure 2 ;

[0033] Figure 6 The structure of the connecting rod of the adjustable T-type milling cutter of the utility model is shown in FIG. Figure 1 ;

[0034] Figure 7 The structure of the connecting rod of the adjustable T-type milling cutter of the utility model is shown in FIG. Figure 2 ;

[0035] Figure 8 The utility model is an adjustable T-shaped milling cutter. Figure 3 .

[0036] The numbers in the figure represent:

[0037] 1. Tool bar; 2. Blade assembly; 21. First blade; 22. Second blade; 3. Telescopic connecting rod; 31. Sleeve; 32. Slide rod; 33. Straight groove; 34. L-shaped groove; 35. Bump; 4. Fixing nut; 5. Arc workpiece; 6. Fixing block; 7. First workpiece; 8. Second workpiece. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of 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.

[0039] The utility model is further described below in conjunction with embodiments.

[0040] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0041] Example 1

[0042] Please refer to the instruction manual Figure 1-8 , an adjustable T-type milling cutter, comprising a cutter bar 1;

[0043] The lower end of the knife bar 1 is connected with a knife;

[0044] The tool comprises a blade assembly 2, a telescopic connecting rod 3 and a fixing nut 4. The lower end of the blade rod 1 is fixedly connected with the telescopic connecting rod 3, the telescopic connecting rod 3 is fitted and connected with the blade assembly 2, and the lower end of the telescopic connecting rod 3 is provided with a thread and locked with the fixing nut 4;

[0045] The blade assembly 2 is divided into one group or two groups;

[0046] The cutter bar 1 is fixedly connected to an external power structure, and the external power may be a motor or the like;

[0047] The external power structure drives the tool bar 1 to rotate, and the tool bar 1 drives the blade assembly 2, the telescopic connecting rod 3, and the fixing nut 4 to rotate, and the high-speed rotating blade assembly 2 contacts the workpiece, and the blade edge of the outer edge of the blade assembly 2 contacts the workpiece, thereby realizing the processing of the workpiece; when the blade assembly 2 is a group, it is suitable for processing grooves of different depths; when the blade assembly 2 is two groups, it is suitable for synchronous processing of parallel grooves or batch processing of thick grooves;

[0048] When there is only one set of blade assembly 2, the blade assembly 2 is located at the upper end or the lower end of the telescopic connecting rod 3;

[0049] When the blade assembly 2 is located at the upper end of the telescopic connecting rod 3, it is suitable for processing the upper end of the arc groove. At this time, the telescopic connecting rod 3 is located at the lower end of the blade assembly 2 and penetrates into the lower end of the arc groove. The processing position is at the upper end of the arc groove, so that it is convenient for the constructor to observe the processing situation; when the blade assembly 2 is located at the lower end of the telescopic connecting rod 3, it is suitable for processing the lower end of the arc groove. At this time, the telescopic connecting rod 3 is located at the upper end of the blade assembly 2, and the telescopic connecting rod 3 extends the blade assembly 2, so that the blade assembly 2 is convenient for the blade assembly 2 to penetrate into the lower end of the arc groove, so as to facilitate the processing of arc grooves of different depths;

[0050] When there are two sets of blade assemblies 2, the blade assemblies 2 include a first blade 21 and a second blade 22, the first blade 21 is located at the upper end of the telescopic connecting rod 3, and the second blade 22 is located at the lower end of the telescopic connecting rod 3;

[0051] When there are two sets of blade assemblies 2, it is suitable for synchronous processing of parallel grooves and batch processing of thick grooves;

[0052] When the first blade 21 and the second blade 22 are the same size, the first blade 21 and the second blade 22 are in contact with the upper and lower ends of the arc-shaped workpiece 5 respectively, and a fixing block 6 is fixedly connected to the arc-shaped workpiece 5 between the first blade 21 and the second blade 22;

[0053] When the first blade 21 and the second blade 22 are of the same size, the first blade 21 processes the arc-shaped workpiece 5 located above the fixed block 6, and at the same time, the second blade 22 processes the arc-shaped workpiece 5 located below the fixed block 6, thereby realizing synchronous processing of the parallel grooves by the first blade 21 and the second blade 22; in addition, the length of the telescopic connecting rod 3 can be adjusted to adapt to parallel grooves of different spacings;

[0054] When the diameter of the second blade 22 is smaller than that of the first blade 21, the second blade 22 and the first blade 21 are in contact with the first workpiece 7 and the second workpiece 8 respectively, the second blade 22 is in contact with the first workpiece 7, the first blade 21 is in contact with the second workpiece 8, and the first workpiece 7 and the second workpiece 8 are fixedly connected;

[0055] When the diameter of the second blade 22 is smaller than that of the first blade 21, the second blade 22 performs preliminary processing on the first workpiece 7. After the thickness of the first workpiece 7 is initially reduced, the first blade 21 performs secondary processing on the first workpiece 7, thereby realizing batch processing of thick grooves and improving the processing efficiency of thick grooves.

[0056] Example 2

[0057] like Figure 1-8 As shown, as a preferred embodiment of the utility model, the telescopic connecting rod 3 includes a sleeve 31, a slide bar 32, a straight groove 33, an L-shaped groove 34 and a protrusion 35. The lower end of the knife bar 1 is fixedly connected to the slide bar 32, and the outer side of the slide bar 32 is limitedly slidably connected to the sleeve 31. The slide bar 32 is provided with a straight groove 33, and the slide bar 32 located on one side of the straight groove 33 is provided with multiple groups of L-shaped grooves 34 at equal distances. The inner side of the sleeve 31 is fixedly connected to the protrusion 35;

[0058] The protrusion 35 is limitedly engaged in one set of L-shaped grooves 34;

[0059] The outer side of the upper end of the slide rod 32 is closely connected to the first blade 21;

[0060] The outer side of the lower end of the sleeve 31 is closely connected to the second blade 22;

[0061] The sleeve 31 is pulled up and down along the slide bar 32, and the sleeve 31 slides up and down under the limiting and guiding action of the slide bar 32, and the sleeve 31 drives the protrusion 35 to slide up and down under the limiting and guiding action of the straight groove 33, and the sleeve 31 stops moving when it reaches the specified position. At this time, the sleeve 31 is rotated, and the sleeve 31 drives the protrusion 35 to rotate, and the protrusion 35 is limited and clamped inside one group of L-shaped grooves 34, so that the sleeve 31 is limited by the protrusion 35, and the sleeve 31 and the slide bar 32 are adjusted and self-locking can be achieved; when parallel grooves are processed synchronously, the sleeve 31 and the slide bar 32 can be adjusted to adapt to parallel grooves with different intervals; when thick grooves are processed in batches, the processing interval length of the first blade 21 and the second blade 22 can be adjusted by adjusting the sleeve 31 and the slide bar 32, so as to better adapt to grooves of different thicknesses.

[0062] Example 3

[0063] like Figure 1-8 As shown, as a preferred embodiment of the present utility model, the protrusion 35 is located at the inner upper end of the sleeve 31 .

[0064] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An adjustable T-type milling cutter, comprising a cutter bar (1), characterized in that: The lower end of the knife rod (1) is connected with a knife; The tool comprises a blade assembly (2), a telescopic connecting rod (3) and a fixing nut (4); the lower end of the knife rod (1) is fixedly connected to the telescopic connecting rod (3); the blade assembly (2) is fittedly connected to the telescopic connecting rod (3); the lower end of the telescopic connecting rod (3) is provided with a thread and is locked with the fixing nut (4); The blade assembly (2) is divided into one group or two groups.

2. The adjustable T-type milling cutter according to claim 1, characterized in that: When there is only one set of blade assemblies (2), the blade assemblies (2) are located at the upper end or the lower end of the telescopic connecting rod (3).

3. The adjustable T-type milling cutter according to claim 1, characterized in that: When there are two groups of blade assemblies (2), the blade assemblies (2) comprise a first blade (21) and a second blade (22), wherein the first blade (21) is located at the upper end of the telescopic connecting rod (3), and the second blade (22) is located at the lower end of the telescopic connecting rod (3).

4. The adjustable T-type milling cutter according to claim 3, characterized in that: When the first blade (21) and the second blade (22) are of the same size, the first blade (21) and the second blade (22) are in contact with the upper and lower ends of the arc-shaped workpiece (5) respectively, and a fixing block (6) is fixedly connected to the arc-shaped workpiece (5) between the first blade (21) and the second blade (22).

5. The adjustable T-type milling cutter according to claim 4, characterized in that: When the diameter of the second blade (22) is smaller than that of the first blade (21), the second blade (22) contacts the first workpiece (7), the first blade (21) contacts the second workpiece (8), and the first workpiece (7) and the second workpiece (8) are fixedly connected.

6. The adjustable T-type milling cutter according to claim 5, characterized in that: The telescopic connecting rod (3) comprises a sleeve (31), a sliding rod (32), a straight groove (33), an L-shaped groove (34) and a protrusion (35); the lower end of the knife rod (1) is fixedly connected to the sliding rod (32); the outer side of the sliding rod (32) is limitedly slidably connected to the sleeve (31); the sliding rod (32) is provided with a straight groove (33); a plurality of groups of L-shaped grooves (34) are provided at equal distances on the sliding rod (32) located on one side of the straight groove (33); and the inner side of the sleeve (31) is fixedly connected to the protrusion (35).

7. The adjustable T-type milling cutter according to claim 6, characterized in that: The protrusion (35) is position-limited and clamped inside one set of L-shaped grooves (34).

8. The adjustable T-type milling cutter according to claim 7, characterized in that: The protrusion (35) is located at the inner upper end of the sleeve (31).

9. The adjustable T-type milling cutter according to claim 8, characterized in that: The outer side of the upper end of the sliding rod (32) is closely connected to the first blade (21).

10. The adjustable T-type milling cutter according to claim 9, characterized in that: The outer side of the lower end of the sleeve (31) is closely connected to the second blade (22).

Images