Safety protection device for numerical control tool

Abstract

The utility model belongs to the field of safety protection devices, and particularly relates to a safety protection device for a numerical control cutter, which comprises a base, the upper end of the base is fixedly connected with two symmetrically distributed guide frames, the outer sides of the guide frames are slidably connected with a moving seat, and the upper end of the moving seat is fixedly provided with a cutter holder. An adjusting frame is slidably connected into the base, and a first spring is arranged on the outer side of a rod piece of the guide frame. The adjusting frame, the positive and negative screw rod, the hand wheel and other structures are additionally arranged on the base, in the using process, the adjusting frame can be driven to move through thread fit between the positive and negative screw rod and the threaded pipe, and the compressed degree of the first spring can be adjusted in the moving process of the adjusting frame; and after the compression degree of the first spring is adjusted, the elastic force value is also adjusted, so that the supporting force of the first spring to the movable seat can be adjusted, and the elastic force value of the first spring is more suitable for cutting of various materials.

Description

Technical Field

[0001] The utility model relates to the technical field of safety protection devices, in particular to a safety protection device for a numerical control tool. Background Technique

[0002] During the use of a numerical control tool, in order to prevent the tool from being damaged by impact, a protection device is added to the tool holder to protect the tool. According to a numerical control tool safety protection device proposed in the patent authorization publication number: CN215748113U, this utility model relates to the technical field of numerical control tools, and discloses a numerical control tool safety protection device. Both sides of the moving rod are sleeved with moving blocks. One end of each moving block is fixedly connected with a shock-absorbing spring, and the other end of each shock-absorbing spring is connected with a shock-absorbing block. And both sides of the shock-absorbing blocks are fixedly installed on the upper parts of both sides of the slider. An infrared camera is installed on the upper left side of the inner frame of the protection frame, and a shielding door is hinged to the front of the protection frame;

[0003] However, in the prior art, the impact force directly acting on the tool is adjusted to a flexible application method through the elastic deformation of the spring by the elastic force of the spring, which can prevent the tool from being damaged. However, different feed forces are required when cutting different materials, resulting in the elastic force of the spring being unable to provide effective support and affecting the normal cutting of the tool. Therefore, the prior art needs to be improved. Content of the Utility Model

[0004] The purpose of the utility model is to provide a safety protection device for a numerical control tool, which solves the problem that the protection strength of the tool cannot be adjusted.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A safety protection device for a numerical control tool, including a base. Two symmetrically distributed guide frames are fixedly connected to the upper end of the base. A moving seat is slidably connected to the outside of the guide frame. A tool holder is fixedly installed on the upper end of the moving seat. An adjusting frame is slidably connected to the inside of the base. A first spring is arranged on the outer side of the rod of the guide frame. A positive and negative screw rod is installed in the base through a bearing. A limiting mechanism is arranged on the base. A threaded pipe is fixedly connected to one side inside the base where the adjusting frame is located. A plurality of uniformly distributed mounting frames are fixedly connected to the lower end of the base. A hand wheel is fixedly connected to the left end of the positive and negative screw rod.

[0006] Preferably, one end of the first spring is fixedly connected to the adjusting frame, and the other end of the first spring is fixedly connected to the moving seat. The first spring can support the movement of the moving seat through elastic force.

[0007] Preferably, the adjusting frame is slidably connected to the guiding frame, and the threaded pipe is threadedly connected to the positive and negative screw rod. The positive and negative screw rod can drive the adjusting frame to move through the threaded cooperation with the threaded pipe.

[0008] Preferably, the limiting mechanism includes a gear. The left part of the outer side of the positive and negative screw rod is fixedly connected with a gear, and the gear is fixedly connected with the hand wheel. The left lower part of the base is fixedly connected with a fixed frame, and the upper end of the fixed frame is fixedly connected with two symmetrically distributed guide rods. The outer side of the guide rod is slidably connected with a limiting frame. A second spring is arranged on the outer side of the guide rod. The outer side of the limiting frame contacts two symmetrically distributed driving frames in the front and back. The lower left part of the base is fixedly connected with an auxiliary frame, and the auxiliary frame can guide the movement of the driving frame.

[0009] Preferably, one end of the second spring is fixedly connected with the limiting frame, and the other end of the second spring is fixedly connected with the fixed frame. The second spring can support the limiting frame through elastic force.

[0010] Preferably, the auxiliary frame is slidably connected to the driving frame, and the limiting frame is clamped in the tooth groove of the gear. The limiting frame can limit the positive and negative screw rod through the gear.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. By adding structures such as an adjusting frame, a positive and negative screw rod, and a hand wheel to the base, in the process of use, the adjusting frame can be driven to move through the threaded cooperation between the positive and negative screw rod and the threaded pipe. During the movement of the adjusting frame, the compression degree of the first spring can be adjusted. After the compression degree of the first spring is adjusted, the elastic force value also changes accordingly. Thus, the supporting force of the first spring on the moving seat can be adjusted, making the elastic force value of the first spring more suitable for cutting various materials.

[0013] 2. By adding structures such as a fixed frame, a limiting frame, and a driving frame to the base, after adjusting the use position of the adjusting frame through the positive and negative screw rod, the limiting frame can be driven by the elastic force of the second spring to slide into the tooth groove of the gear, thereby limiting the positive and negative screw rod, making the adjusted adjusting frame more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional view of the overall structure of the present utility model Figure 1 ;

[0015] Figure 2 is a three-dimensional view of the overall structure of the present utility model Figure 2 ;

[0016] Figure 3 is of the present utility modelFigure 1 Stereoscopic sectional view;

[0017] Figure 4 This is for the Figure 3 Enlarged view of the structure of part A;

[0018] Figure 5 This is for the Figure 1 Stereoscopic enlarged view of the handwheel;

[0019] Figure 6 This is for the Figure 1 Stereoscopic enlarged view of the adjusting frame.

[0020] In the figure: 1, base; 2, guiding frame; 3, moving seat; 4, tool rest; 5, adjusting frame; 6, first spring; 7, left - right screw; 8, limiting mechanism; 9, threaded pipe; 10, mounting frame; 11, handwheel; 81, gear; 82, fixed frame; 83, guide rod; 84, limiting frame; 85, second spring; 86, driving frame; 87, auxiliary frame. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , a safety protection device for a numerical control tool, comprising a base 1. Two symmetrically distributed guiding frames 2 are fixedly connected to the upper end of the base 1. A moving seat 3 is slidably connected to the outside of the guiding frame 2. A tool rest 4 is fixedly installed at the upper end of the moving seat 3. An adjusting frame 5 is slidably connected to the inside of the base 1. A first spring 6 is arranged on the outer side of the rod of the guiding frame 2. A left - right screw 7 is installed in the base 1 through a bearing. A limiting mechanism 8 is arranged on the base 1. A threaded pipe 9 is fixedly connected to one side inside the base 1 where the adjusting frame 5 is located. A plurality of uniformly distributed mounting frames 10 are fixedly connected to the lower end of the base 1. The left end of the left - right screw 7 is fixedly connected to a handwheel 11.

[0023] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6, one end of the first spring 6 is fixedly connected to the adjusting frame 5, and the other end of the first spring 6 is fixedly connected to the moving seat 3. The first spring 6 can support the movement of the moving seat 3 through its elastic force. The adjusting frame 5 is slidably connected to the guiding frame 2. The threaded tube 9 is threadedly connected to the positive and negative screw rod 7. The positive and negative screw rod 7 can drive the adjusting frame 5 to move through the threaded fit with the threaded tube 9.

[0024] Please refer to Figure 1 , Figure 3 , Figure 4 , the limiting mechanism 8 includes a gear 81. The left part of the outer side of the positive and negative screw rod 7 is fixedly connected to the gear 81. The gear 81 is fixedly connected to the hand wheel 11. The left lower part of the lower end of the base 1 is fixedly connected to a fixed frame 82. The upper end of the fixed frame 82 is fixedly connected to two symmetrically distributed guide rods 83. The outer side of the guide rod 83 is slidably connected to a limiting frame 84. A second spring 85 is arranged on the outer side of the guide rod 83. The outer side of the limiting frame 84 contacts two symmetrically distributed driving frames 86 in the front and back. The left lower part of the left end of the base 1 is fixedly connected to an auxiliary frame 87. The auxiliary frame 87 can guide the movement of the driving frame 86. One end of the second spring 85 is fixedly connected to the limiting frame 84, and the other end of the second spring 85 is fixedly connected to the fixed frame 82. The second spring 85 can support the limiting frame 84 through its elastic force. The auxiliary frame 87 is slidably connected to the driving frame 86. The limiting frame 84 is clamped in the tooth groove of the gear 81. The limiting frame 84 can limit the positive and negative screw rod 7 through the gear 81.

[0025] The specific implementation process of the present utility model is as follows: When it is necessary to adjust the protection strength, press the driving frame 86. The driving frame 86 drives the limiting frame 84 to move downward and compresses the second spring 85. When the limiting frame 84 disengages from the gear 81, the limit on the hand wheel 11 can be released. Then rotate the hand wheel 11. The hand wheel 11 rotates on the positive and negative screw rod 7. During the rotation of the positive and negative screw rod 7, it can drive the adjusting frame 5 to move through the threaded fit with the threaded tube 9. During the movement of the adjusting frame 5, the compression degree of the first spring 6 can be adjusted. After adjustment, release the driving frame 86. The second spring 85 resets. The second spring 85 can drive the limiting frame 84 to slide into the inside of the gear 81 through its elastic force to limit the positive and negative screw rod 7, and the loosening of the positive and negative screw rod 7 can be avoided.

[0026] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A safety protection device for a numerical control tool, comprising a base (1), characterized in that: Two symmetrically distributed guide frames (2) are fixedly connected to the upper end of the base (1). A moving seat (3) is slidably connected to the outside of the guide frame (2). A tool holder (4) is fixedly installed at the upper end of the moving seat (3). An adjusting frame (5) is slidably connected to the inside of the base (1). A first spring (6) is arranged on the outer side of the rod of the guide frame (2). A left-right screw (7) is installed in the base (1) through a bearing. A limiting mechanism (8) is arranged on the base (1). A threaded pipe (9) is fixedly connected to one side inside the base (1) where the adjusting frame (5) is located. A plurality of uniformly distributed mounting frames (10) are fixedly connected to the lower end of the base (1). A handwheel (11) is fixedly connected to the left end of the left-right screw (7).

2. The safety protection device for a numerically controlled tool according to claim 1, characterized in that: One end of the first spring (6) is fixedly connected to the adjusting frame (5), and the other end of the first spring (6) is fixedly connected to the moving seat (3).

3. A safety protection device for a numerical control tool according to claim 1, characterized in that: The adjusting frame (5) is slidably connected to the guide frame (2), and the threaded pipe (9) is threadedly connected to the left-right screw (7).

4. A safety protection device for a numerical control tool according to claim 1, characterized in that: The limiting mechanism (8) includes a gear (81). The gear (81) is fixedly connected to the outer side of the left part of the left-right screw (7). The gear (81) is fixedly connected to the handwheel (11). A fixed frame (82) is fixedly connected to the lower left part of the base (1). Two symmetrically distributed guide rods (83) are fixedly connected to the upper end of the fixed frame (82). A limiting frame (84) is slidably connected to the outer side of the guide rod (83). A second spring (85) is arranged on the outer side of the guide rod (83). Two front-and-back symmetrically distributed driving frames (86) are in contact with the outer side of the limiting frame (84). An auxiliary frame (87) is fixedly connected to the lower left part of the base (1).

5. The safety protection device for a numerical control tool according to claim 4, characterized in that: One end of the second spring (85) is fixedly connected to the limiting frame (84), and the other end of the second spring (85) is fixedly connected to the fixed frame (82).

6. The safety protection device for a numerical control tool according to claim 4, wherein: The auxiliary frame (87) is slidably connected to the driving frame (86), and the limiting frame (84) is engaged with the tooth groove of the gear (81).

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