Cutter fixing assembly with safety lock structure

Abstract

The utility model discloses a cutter fixing assembly with a safety lock structure, which comprises a fixing seat, and a third inclined part is tightly pressed on a first inclined part; through the design of structures such as a threaded sleeve, a third inclined part, a pressing block, a connecting rod and a fixing block, the threaded sleeve is installed on the fixing base in a threaded mode, the third inclined part, the pressing block, a first inclined part and the connecting rod are matched with the fixing block, the fixing block can be inserted into a fixing groove of a cutter handle, and therefore the cutter can be conveniently fixed, and meanwhile the cutter can be conveniently fixed. The stability of the installed cutter handle can be improved, the stability of the installed threaded sleeve can be improved through the positioning mechanism, the threaded sleeve can be prevented from loosening on the fixing base, the stability of the threaded sleeve can be improved, and then the safety effect of the installed cutter handle can be improved. The stability of the installed cutter handle can be improved, operation is easy and convenient, and safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of tool installation for numerical control machine tools, in particular to a tool fixing component with a safety lock structure. Background Art

[0002] CNC machine tool is the abbreviation of digital control machine tool, which is an automated machine tool equipped with a program control system. Cutting tools are one of the necessary tools for CNC machine tools.

[0003] The prior art provides a CNC machine tool tool with a safety lock structure (Announcement No. CN210587218U), the utility model includes a fixed shell, a first threaded sleeve is fixedly welded on the left side of the inner wall of the fixed shell, the internal thread of the first threaded sleeve is connected with a tool handle, and a second threaded sleeve is fixedly welded on the right side of the inner wall of the fixed shell, and the right end of the tool handle passes through the first threaded sleeve, the second threaded sleeve and the fixed shell from left to right in sequence and extends to the outside of the fixed shell. The utility model cooperates with each other through the fixed shell, the first threaded sleeve, the tool handle, the second threaded sleeve, the safety lock assembly, the fixed block, the rotating shaft, the rotating plate, the threaded locking pin, the locking block, the tool head, the threaded rod and the third threaded sleeve, and the threaded locking pin passes through the locking block and the rotating plate to lock the tool handle, and the axial movement of the tool is limited by the threaded locking pin, so that the tool will not fall even if it is loose, so as to prevent the processing quality of the parts from being affected by the loosening of the tool, reduce the occurrence rate of safety accidents, and bring great convenience to the processing work.

[0004] The above-mentioned method only improves the safety function after the tool is installed in the actual operation process. However, when the safety lock structure is used to improve the installation efficiency of the tool, the tool cannot be conveniently installed and fixed, which affects the convenience of tool installation. Therefore, we need to propose a tool fixing component with a safety lock structure. Utility Model Content

[0005] The purpose of the utility model is to provide a tool fixing assembly with a safety lock structure, which can facilitate the fixing of the tool, improve the convenience of tool installation, and improve the stability of the tool handle after installation. It is simple and convenient to operate and has high safety, so as to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A tool fixing assembly with a safety lock structure comprises a fixing seat, a plurality of groups of pressure blocks are evenly arranged on the surface of the fixing seat along the circumferential direction, the bottoms of the plurality of groups of pressure blocks are fixedly connected with connecting rods, a mounting cavity is provided in the fixing seat, the connecting rods extend into the mounting cavity, the lower ends of the connecting rods are fixedly connected with fixing blocks, a tool handle is inserted in the fixing seat, a tool head is provided at the end of the tool handle, a plurality of groups of fixing grooves are evenly arranged on the surface of the tool handle along the circumferential direction, and the fixing blocks are inserted in the fixing grooves;

[0008] The pressing block is provided with a first inclined portion which is inclined, the fixing seat is threadedly provided with a threaded sleeve, the threaded sleeve is provided with a third inclined portion which is inclined, and the third inclined portion is pressed tightly against the first inclined portion.

[0009] Preferably, a square column is fixedly connected in the installation cavity, a square groove is opened at the end of the handle, and the square column is inserted into the square groove.

[0010] Preferably, a plurality of avoidance grooves and a plurality of avoidance holes are evenly provided on the surface of the fixing seat along the circumferential direction, the pressing block is arranged in the avoidance groove, positioning holes are provided in the plurality of avoidance grooves, and the connecting rod is arranged in the positioning hole.

[0011] Preferably, the avoidance hole is communicated with the mounting cavity, connecting blocks are fixedly connected to both sides of the pressure block, the connecting blocks are arranged in the mounting cavity, a plurality of mounting frames are evenly and fixedly connected to the inner wall of the mounting cavity along the circumferential direction, movable rods are movably inserted in the plurality of mounting frames, the upper end of the movable rod is fixedly connected to the bottom of the connecting block, a first push spring is sleeved on the movable rod, the upper end of the first push spring is pressed against the bottom of the connecting block, and the lower end of the first push spring is pressed against the top of the mounting frame.

[0012] Preferably, a retaining ring is fixedly connected to the lower end of the movable rod.

[0013] Preferably, a second inclined portion which is arranged in an inclined manner is provided on the top of the connecting block on one side of the pressing block.

[0014] Preferably, an annular positioning groove is provided on the fixing seat, and a positioning mechanism for cooperating with the annular positioning groove to position the threaded sleeve is provided on the threaded sleeve.

[0015] Preferably, the positioning mechanism includes a fixed shell, a plug-in column, a second push spring and a push ring. The fixed shell is evenly arranged along the circumference of the surface of the fixed seat, the plug-in column is movably inserted in the fixed shell, the lower end of the plug-in column is inserted in the annular positioning groove, the push ring is fixedly connected to the surface of the plug-in rod, the second push spring is sleeved on the plug-in column, the upper end of the second push spring is pressed against the inner wall of the fixed shell, and the lower end of the second push spring is pressed against the top of the push ring.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] Through the design of structures such as the threaded sleeve, the third inclined portion, the pressure block, the connecting rod and the fixed block, the threaded sleeve is threadedly installed on the fixed seat, and the third inclined portion, the pressure block, the first inclined portion, the connecting rod and the fixed block cooperate, so that the fixed block can be inserted into the fixing groove of the tool handle, thereby facilitating the fixation of the tool and improving the stability of the tool handle after installation. The stability of the threaded sleeve after installation can be improved by the positioning mechanism, and the threaded sleeve can be prevented from loosening on the fixed seat, which can improve the stability of the threaded sleeve, and further improve the safety effect of the tool handle after installation. The utility model can facilitate the fixation of the tool, improve the convenience of tool installation, and improve the stability of the tool handle after installation. The operation is simple and convenient, and the safety is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the utility model in cross section;

[0020] Figure 3 It is a structural schematic diagram of the fixing seat of the utility model;

[0021] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure of area A in the middle.

[0022] In the figure: 1, fixed seat; 2, tool handle; 3, threaded sleeve; 4, pressure block; 5, first inclined portion; 6, connecting rod; 7, fixed block; 8, fixed groove; 9, mounting frame; 10, movable rod; 11, retaining ring; 12, first push spring; 13, connecting block; 14, second inclined portion; 15, square column; 16, square groove; 17, fixed shell; 18, plug-in column; 19, second push spring; 20, push ring; 21, annular positioning groove; 22, avoidance groove; 23, positioning hole; 24, avoidance hole; 25, tool head; 26, third inclined portion; 27, mounting cavity. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-4 , the utility model provides a technical solution:

[0025] A tool fixing assembly with a safety lock structure comprises a fixing seat 1 and a tool handle 2, a plurality of groups of pressing blocks 4 are evenly arranged on the surface of the fixing seat 1 along the circumferential direction, the bottoms of the plurality of groups of pressing blocks 4 are all fixedly connected with connecting rods 6, a mounting cavity 27 is provided in the fixing seat 1, the connecting rods 6 extend into the mounting cavity 27, the lower ends of the connecting rods 6 are all fixedly connected with fixing blocks 7, a tool handle 2 is inserted into the fixing seat 1, a tool head 25 is provided at the end of the tool handle 2, a plurality of groups of fixing grooves 8 are evenly arranged on the surface of the tool handle 2 along the circumferential direction, and the fixing blocks 7 are inserted into the fixing grooves 8;

[0026] The fixing block 7 cooperates with the fixing groove 8 to position the knife handle 2 and can be used to fix the knife handle 2;

[0027] The pressing block 4 is provided with a first inclined portion 5 which is arranged in an inclined manner, the fixing seat 1 is threadedly provided with a threaded sleeve 3, the threaded sleeve 3 is provided with a third inclined portion 26 which is arranged in an inclined manner, and the third inclined portion 26 is pressed tightly against the first inclined portion 5;

[0028] The first inclined portion 5, the third inclined portion 26 cooperate with the threaded sleeve 3, thereby improving the pressing and fixing effect of the pressing block 4, so that the fixing block 7 can be inserted into the fixing groove 8 to fix the tool handle 2;

[0029] A square column 15 is fixedly connected in the installation cavity 27, and a square groove 16 is formed at the end of the handle 2, and the square column 15 is inserted into the square groove 16;

[0030] The square column 15 cooperates with the square groove 16 to position the handle 2, so that the fixing groove 8 can be aligned with the fixing block 7;

[0031] The surface of the fixed seat 1 is uniformly provided with multiple groups of avoidance grooves 22 and multiple groups of avoidance holes 24 along the circumferential direction, the pressure block 4 is arranged in the avoidance grooves 22, and positioning holes 23 are arranged in the multiple groups of avoidance grooves 22, the connecting rod 6 is arranged in the positioning hole 23, and the avoidance hole 24 is communicated with the installation cavity 27, and the two sides of the pressure block 4 are fixedly connected with the connecting blocks 13, and the connecting blocks 13 are arranged in the installation cavity 27, and the inner wall of the installation cavity 27 is uniformly fixedly connected with multiple groups of mounting frames 9 along the circumferential direction, and the multiple groups of mounting frames 9 are movably inserted with movable rods 10, and the upper ends of the movable rods 10 are fixedly connected to the bottom of the connecting blocks 13, and the movable rods 10 are sleeved with the first push springs 12, and the upper ends of the first push springs 12 are pressed against the bottom of the connecting blocks 13, and the lower ends of the first push springs 12 are pressed against the top of the mounting frame 9;

[0032] Through the cooperation of the movable rod 10, the mounting frame 9, the connecting block 13 and the first push spring 12, the fixing block 7 and the fixing groove 8 can be separated;

[0033] Specifically, when the tool is disassembled and replaced, when the threaded sleeve 3 is unscrewed from the fixed seat 1, the first push spring 12 cooperates with the connecting block 13 to push the pressing block 4, so that the pressing block 4 cooperates with the connecting rod 6 to drive the fixing block 7 to move out of the fixing groove 8, so that the fixing force of the fixing block 7 on the tool handle 2 disappears, and the tool can be disassembled at this time;

[0034] A retaining ring 11 is fixedly connected to the lower end of the movable rod 10;

[0035] The retaining ring 11 cooperates with the movable rod 10 to position the pressing block 4;

[0036] A second inclined portion 14 is provided at the top of the connecting block 13 on one side of the pressing block 4;

[0037] The second inclined portion 14 is provided to prevent the connection block 13 from colliding with the third inclined portion 26 and affecting the installation of the threaded sleeve 3.

[0038] An annular positioning groove 21 is provided on the fixing seat 1, and a positioning mechanism for cooperating with the annular positioning groove 21 to position the threaded sleeve 3 is provided on the threaded sleeve 3. The positioning mechanism includes a fixing shell 17, a plug-in column 18, a second push spring 19 and a push ring 20. The fixing shell 17 is evenly arranged along the circumference of the surface of the fixing seat 1, the plug-in column 18 is movably plugged into the fixing shell 17, and the lower end of the plug-in column 18 is plugged into the annular positioning groove 21. The push ring 20 is fixedly connected to the surface of the plug rod, and the second push spring 19 is sleeved on the plug-in column 18. The upper end of the second push spring 19 is pressed against the inner wall of the fixing shell 17, and the lower end of the second push spring 19 is pressed against the top of the push ring 20.

[0039] The fixing shell 17, the annular positioning groove 21, the plug-in column 18, the second push spring 19 and the push ring 20 cooperate to improve the positioning of the threaded sleeve 3 and prevent the threaded sleeve 3 from loosening and affecting the fixing effect of the tool.

[0040] In specific use, when installing the tool, first insert the tool handle 2 into the fixing seat 1, and position the tool handle 2 by coordinating the square column 15 with the square groove 16, so that the fixing groove 8 can be aligned with the fixing block 7, and when the threaded sleeve 3 is threadedly installed on the fixing seat 1 by rotating the threaded sleeve 3, the pressing block 4 can be squeezed by coordinating the third inclined portion 26 with the first inclined portion 5, so that the pressing block 4 drives the fixing block 7 to move under the push of the connecting rod 6, so that the fixing block 7 can be inserted into the fixing groove 8, and the tool handle 2 can be conveniently fixed by coordinating the fixing block 7 with the fixing groove 8, and the stability of the tool handle 2 after installation can be improved;

[0041] By inserting the plug-in column 18 into the annular positioning groove 21, the positioning effect of the threaded sleeve 3 is improved, the threaded sleeve 3 can be prevented from loosening on the fixing seat 1, the stability of the threaded sleeve 3 can be improved, and the safety effect of the tool handle 2 after installation can be improved.

[0042] 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 tool fixing assembly with a safety lock structure, characterized in that: include: Fixed seat (1); A plurality of groups of pressing blocks (4) are evenly arranged on the surface of the fixing seat (1) along the circumferential direction, and the bottoms of the plurality of groups of pressing blocks (4) are fixedly connected with connecting rods (6); The fixing seat (1) is provided with a mounting cavity (27), the connecting rod (6) extends into the mounting cavity (27), and the lower end of the connecting rod (6) is fixedly connected to a fixing block (7); A knife handle (2) is inserted into the fixing seat (1), a knife head (25) is arranged at the end of the knife handle (2), a plurality of groups of fixing grooves (8) are evenly arranged on the surface of the knife handle (2) along the circumferential direction, and the fixing block (7) is inserted into the fixing groove (8); The pressing block (4) is provided with a first inclined portion (5) which is arranged in an inclined manner, the fixing seat (1) is threadedly provided with a threaded sleeve (3), the threaded sleeve (3) is provided with a third inclined portion (26) which is arranged in an inclined manner, and the third inclined portion (26) is pressed tightly against the first inclined portion (5).

2. A tool fixing assembly with a safety lock structure according to claim 1, characterized in that: A square column (15) is fixedly connected in the installation cavity (27), a square groove (16) is provided at the end of the knife handle (2), and the square column (15) is inserted into the square groove (16).

3. The tool fixing assembly with a safety lock structure according to claim 1, characterized in that: The surface of the fixing seat (1) is evenly provided with a plurality of avoidance grooves (22) and a plurality of avoidance holes (24) along the circumferential direction, the pressing block (4) is arranged in the avoidance grooves (22), a positioning hole (23) is arranged in each of the plurality of avoidance grooves (22), and the connecting rod (6) is arranged in the positioning hole (23).

4. The tool fixing assembly with a safety lock structure according to claim 3, characterized in that: The avoidance hole (24) is communicated with the installation cavity (27), and both sides of the pressure block (4) are fixedly connected with a connecting block (13), and the connecting block (13) is arranged in the installation cavity (27). The inner wall of the installation cavity (27) is evenly and fixedly connected with multiple groups of mounting frames (9) along the circumferential direction, and movable rods (10) are movably inserted in the multiple groups of mounting frames (9), and the upper end of the movable rod (10) is fixedly connected to the bottom of the connecting block (13), and the movable rod (10) is sleeved with a first push spring (12), and the upper end of the first push spring (12) is pressed against the bottom of the connecting block (13), and the lower end of the first push spring (12) is pressed against the top of the mounting frame (9).

5. The tool fixing assembly with a safety lock structure according to claim 4, characterized in that: A retaining ring (11) is fixedly connected to the lower end of the movable rod (10).

6. The tool fixing assembly with a safety lock structure according to claim 5, characterized in that: A second inclined portion (14) is provided at an inclined position on the top of the connecting block (13) on one side of the pressing block (4).

7. The tool fixing assembly with a safety lock structure according to claim 1, characterized in that: The fixing seat (1) is provided with an annular positioning groove (21), and the threaded sleeve (3) is provided with a positioning mechanism for cooperating with the annular positioning groove (21) to position the threaded sleeve (3).

8. The tool fixing assembly with a safety lock structure according to claim 7, characterized in that: The positioning mechanism comprises a fixed shell (17), a plug-in column (18), a second push spring (19) and a push ring (20); the fixed shell (17) is evenly arranged along the circumference of the surface of the fixed seat (1); the plug-in column (18) is movably plugged into the fixed shell (17); the lower end of the plug-in column (18) is plugged into the annular positioning groove (21); the push ring (20) is fixedly connected to the surface of the plug-in rod; the second push spring (19) is sleeved on the plug-in column (18); the upper end of the second push spring (19) is pressed against the inner wall of the fixed shell (17); and the lower end of the second push spring (19) is pressed against the top of the push ring (20).

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