Air pressure balancing device in protective shell of numerical control machine tool

Abstract

The utility model relates to the technical field of air pressure balancing, in particular to an air pressure balancing device in a protective shell of a numerical control machine tool. The front face of the air cylinder is fixedly connected with an exhaust hole, a sealing plate is arranged on the upper side of the air cylinder, a sliding groove is formed in the bottom of the exhaust hole, and a rotating baffle is arranged in the exhaust hole and can rotate to adjust exhaust gaps. According to the utility model, the baffle plate does not rotate randomly through the rebounding of the upper and lower springs on the two surfaces of the baffle plate, the fixed block is fixed through the bolt, the columnar rod is fixed through the fixed block, the baffle plate does not rotate randomly, and the exhaust amount can be adjusted through the exhaust hole by generating a gap with the surface of the annular groove through the rotation of the baffle plate; the motor rotates to drive the threaded rod, the side plate and the arc-shaped plate to move front and back, the mounting plate and the sliding block are driven to move front and back, the exhaust hole can increase the gas exhaust speed, a screw penetrates through the sealing plate to be connected to the air cylinder, abrasion elements in the air cylinder are convenient to replace, the safety degree is increased, and the application range is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of air pressure balance, in particular to an air pressure balance device in a protective shell of a numerical control machine tool. Background Art

[0002] The air pressure balance inside the protective shell of a CNC machine tool is crucial to ensure the normal operation of the machine tool. The stability and reliability of the system must be taken into account to ensure that the air pressure fluctuates within a certain range and does not affect the normal operation of the machine tool due to excessive or low air pressure. There is a close relationship between the size of the exhaust hole and the air pressure balance. In a closed container, as the temperature of the internal gas increases, the movement of gas molecules intensifies, causing the internal air pressure to increase. In order to prevent the container from exploding due to excessive internal air pressure, exhaust holes are usually set to release excess gas, thereby maintaining the internal air pressure at a relatively stable level.

[0003] There are many existing technologies for air pressure balance, such as:

[0004] Chinese patent application No. 201921058991.3 discloses an air pressure regulating device for being arranged on a laser radar housing, and relates to the field of laser radar technology. The air pressure regulating device for laser radar comprises: a laser radar housing, which is used for the protection and internal support of the laser radar; a gas channel, which is arranged on the non-laser working area of ​​the laser radar housing, and is used to provide a passage for gas flow between the inside of the laser radar housing, the flexible sealing body, and the outside of the laser radar housing; a flexible sealing body, which is connected to the gas channel, and is used to balance the internal air pressure of the laser radar. The utility model ensures that when the internal air pressure of the laser radar changes, the laser radar light-transmitting window with low temperature tolerance will not be damaged, thereby improving the environmental temperature adaptability of the laser radar.

[0005] However, the size of the exhaust hole in the prior art cannot be adjusted. When the size of the exhaust hole is inappropriate, it will lead to unstable pressure of the CNC machine tool. If the exhaust hole is too small, the internal pressure cannot be released in time and effectively, causing the internal pressure of the container to exceed the design limit, causing safety hazards. If the exhaust hole is too large, although the pressure can be released quickly, it will cause excessive gas loss under normal working conditions, affecting the working efficiency and energy utilization efficiency of the equipment. In view of this, we propose an air pressure balancing device in the protective shell of the CNC machine tool. Utility Model Content

[0006] The purpose of this utility model is to solve the above shortcomings and provide an air pressure balancing device in the protective shell of a CNC machine tool;

[0007] To achieve the above-mentioned purpose, the utility model provides an air pressure balancing device in a protective shell of a CNC machine tool, including a cylinder, an exhaust hole is fixedly connected to the front of the cylinder, a sealing plate is provided on the upper side of the cylinder, a slide groove is provided at the bottom of the exhaust hole, a rotating baffle is provided inside the exhaust hole to rotatably adjust the exhaust gap, an arc plate inside the exhaust hole can increase the exhaust volume, and the sealing plate is easy to install and disassemble and maintain air tightness.

[0008] As a further improvement of the technical solution, an annular groove is opened inside the exhaust hole, a baffle is rotatably connected inside the annular groove, a rotating rod is rotatably connected inside the baffle, and the outer surfaces on both sides of the rotating rod are fixedly connected to the inside of the exhaust hole.

[0009] As a further improvement of the technical solution, one end of a spring is fixedly connected to the front side of the lower side of the baffle, and the other end of the spring is fixedly connected to the front side of the inner surface of the exhaust hole. There are two springs, one end of the other spring is fixedly connected to the upper back of the baffle, and the other end of the spring is fixedly connected to the rear side of the inner surface of the exhaust hole. A columnar rod is fixedly connected to the front side of the lower side of the baffle, a groove is provided on the outer surface of the columnar rod, a fixed block is slidably connected to the inside of the groove, and a bolt is threadedly connected to the outer surface of the fixed block.

[0010] As a further improvement of the present technical solution, the outer surface of the arc-shaped plate is fixedly connected to the end of the side plate, the rear side of the side plate is rotatably connected to one end of a threaded rod, the other end of the threaded rod is fixedly connected to the end of the motor output shaft, the other end of the motor is fixedly connected to a mounting plate, the top of the mounting plate is fixedly connected to a slider, and the top of the slider is slidably connected to the inner surface of the slide groove.

[0011] As a further improvement of the technical solution, a circular groove is provided at the bottom of the sealing plate, a sealing ring is slidably connected inside the circular groove, the bottom of the sealing ring is fixedly connected to the upper side of the cylinder, and a screw is threadedly connected to the top of the sealing plate.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The upper and lower springs on both sides of the baffle rebound to prevent the baffle from rotating at will, the fixing block is fixed by bolts, and the column rod is fixed by the fixing block to prevent the baffle from rotating at will, and a gap is generated between the rotation of the baffle and the surface of the annular groove to enable the exhaust hole to adjust the exhaust volume, and the threaded rod, side plate and arc plate are driven forward and backward by the rotation of the motor to drive the mounting plate and the slider to move forward and backward to increase the gas discharge speed through the exhaust hole, and the sealing plate is connected to the cylinder through screws to facilitate the replacement of the internal components of the cylinder due to wear, thereby increasing the safety and scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the rotating structure of the utility model;

[0016] Figure 3 For the utility model Figure 2 Schematic diagram of point A;

[0017] Figure 4 For the utility model Figure 2 Schematic diagram of the internal structure;

[0018] Figure 5 It is a schematic diagram of the mobile structure of the utility model;

[0019] Figure 6 It is a schematic diagram of the sealing cover structure of the utility model.

[0020] The meaning of each number in the figure is:

[0021] 1. Cylinder; 11. Exhaust hole; 111. Ring groove; 112. Hole groove; 113. Slide groove;

[0022] 2. baffle; 21. rotating rod; 22. spring; 23. columnar rod; 231. groove; 232. fixing block; 233. bolt;

[0023] 24. curved plate; 25. side plate; 26. threaded rod; 27. motor; 28. mounting plate; 29. ​​slider;

[0024] 3. Sealing plate; 31. Circular groove; 32. Sealing ring; 33. Screw. DETAILED DESCRIPTION

[0025] 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.

[0026] The air pressure balance inside the protective shell of a CNC machine tool is crucial to ensure the normal operation of the machine tool. The stability and reliability of the system must be taken into account to ensure that the air pressure fluctuates within a certain range and does not affect the normal operation of the machine tool due to excessive or low air pressure. There is a close relationship between the size of the exhaust hole and the air pressure balance. In a closed container, as the temperature of the internal gas increases, the movement of gas molecules intensifies, causing the internal air pressure to increase. In order to prevent the container from exploding due to excessive internal air pressure, exhaust holes are usually set to release excess gas, thereby maintaining the internal air pressure at a relatively stable level.

[0027] See also Figure 1-Figure 6 As shown, the present embodiment provides an air pressure balancing device in a protective shell of a CNC machine tool, including a cylinder 1, an exhaust hole 11 being fixedly connected to the front of the cylinder 1, a sealing plate 3 being provided on the upper side of the cylinder 1, and a slide groove 113 being provided at the bottom of the exhaust hole 11. In order to balance the air pressure, the exhaust hole 11 can be adjusted to an ideal value. Therefore, the details are as follows: a rotating baffle 2 is provided inside the exhaust hole 11 to rotatably adjust the exhaust gap, an arc-shaped plate 24 inside the exhaust hole 11 can increase the exhaust volume, and the sealing plate 3 is convenient for installation and disassembly and maintaining air tightness. However, the exhaust hole 11 in the prior art cannot be adjusted in size. When the size of the exhaust port is not appropriate, the pressure of the CNC machine tool will be unstable. If the exhaust hole 11 is too small, the internal pressure cannot be released in time and effectively, resulting in the internal pressure of the container exceeding the design limit, causing a safety hazard. If the exhaust hole 11 is too large, although the pressure can be released quickly, it will cause excessive gas loss under normal working conditions, affecting the working efficiency and energy utilization efficiency of the equipment.

[0028] The improvement of this embodiment is that:

[0029] The upper and lower springs 22 on both sides of the baffle 2 rebound to prevent the baffle 2 from rotating at will, the fixing block 232 is fixed by the bolt 233, and the columnar rod 23 is fixed by the fixing block 232 to prevent the baffle 2 from rotating at will, and a gap is generated between the rotation of the baffle 2 and the surface of the annular groove 111 to enable the exhaust hole 11 to adjust the exhaust volume, and the threaded rod 26, the side plate 25 and the arc plate 24 are driven to move forward and backward by the rotation of the motor 27, and the mounting plate 28 and the slider 29 are driven to move forward and backward to enable the exhaust hole 11 to increase the gas discharge speed, and the sealing plate 3 is penetrated by the screw 33 to be connected to the cylinder 1, so that the internal components of the cylinder 1 can be easily replaced due to wear, thereby increasing the safety and scope of application.

[0030] In order to allow the exhaust hole 11 to adjust the exhaust volume, an annular groove 111 is opened inside the exhaust hole 11, and a baffle 2 is rotatably connected inside the annular groove 111, and a rotating rod 21 is rotatably connected inside the baffle 2. The outer surfaces of both sides of the rotating rod 21 are fixedly connected to the inside of the exhaust hole 11, and a gap is generated between the rotation of the baffle 2 and the surface of the annular groove 111, so that the exhaust volume of the exhaust hole 11 can be adjusted.

[0031] In order to prevent the baffle 2 from rotating at will when needed, one end of a spring 22 is fixedly connected to the front side of the lower side of the baffle 2, and the other end of the spring 22 is fixedly connected to the front side of the inner surface of the exhaust hole 11. There are two springs 22, one end of another spring 22 is fixedly connected to the back of the upper side of the baffle 2, and the other end of the spring 22 is fixedly connected to the back side of the inner surface of the exhaust hole 11. A columnar rod 23 is fixedly connected to the front side of the lower side of the baffle 2, and a groove 231 is provided on the outer surface of the columnar rod 23, and a fixing block 232 is slidably connected inside the groove 231. The outer surface of the fixing block 232 is threadedly connected with a bolt 233, and the upper and lower springs 22 on both sides of the baffle 2 rebound, so that the baffle 2 does not rotate at will, the fixing block 232 is fixed by the bolt 233, and the columnar rod 23 is fixed by the fixing block 232, so that the baffle 2 does not rotate at will.

[0032] Secondly, in order to increase the gas discharge speed of the exhaust hole 11, the end of the side plate 25 is fixedly connected to the outer surface of the arc plate 24, and one end of the threaded rod 26 is rotatably connected to the rear side of the side plate 25, and the other end of the threaded rod 26 is fixedly connected to the end of the output shaft of the motor 27, and the other end of the motor 27 is fixedly connected to the mounting plate 28, and a slider 29 is fixedly connected to the top of the mounting plate 28, and the top of the slider 29 is slidably connected to the inner surface of the slide groove 113. The threaded rod 26, the side plate 25 and the arc plate 24 are driven to move forward and backward by the rotation of the motor 27, and the mounting plate 28 and the slider 29 are driven to move forward and backward, so that the exhaust hole 11 can increase the gas discharge speed.

[0033] Taking into account that the internal components of the cylinder 1 are inconvenient to replace due to wear, a circular groove 31 is opened at the bottom of the sealing plate 3, and a sealing ring 32 is slidably connected inside the circular groove 31. The bottom of the sealing ring 32 is fixedly connected to the upper side of the cylinder 1, and a screw 33 is threadedly connected to the top of the sealing plate 3. The sealing ring 32 is inserted into the circular groove 31, and the screw 33 penetrates the sealing plate 3 and is connected to the cylinder 1, so that the internal components of the cylinder 1 can be easily replaced due to wear.

[0034] In summary, the working principle of this solution is as follows:

[0035] Manually align the circular groove 31 on the sealing plate 3 with the sealing ring 32, and manually tighten the screw 33 to ensure that the airtightness of the internal components is intact. The sealing plate 3 is connected to the cylinder 1 through the screw 33, so that the wear and tear of the internal components of the cylinder 1 can be easily replaced, and disassembly is also convenient. The fixing block 232 is fixed by the bolt 233, and the columnar rod 23 is fixed by the fixing block 232 to ensure that the baffle 2 does not rotate at will. A gap is generated between the rotation of the baffle 2 and the surface of the annular groove 111, so that the exhaust hole 11 can adjust the exhaust volume. When the exhaust hole 11 needs to be larger, the columnar rod 23 is manually pulled outward, and the upper and lower springs 22 on both sides of the baffle 2 rebound to ensure that the baffle 2 does not rotate at will. The spring 22 and the baffle 2 are driven by the columnar rod 23 until the baffle 2 rotates to the ideal gap through the rotating rod 21, and the fixing block 232 is manually inserted into the groove 231, and then manually screw the bolt 233 into the appropriate hole. When a smaller exhaust hole 11 is needed, manually unscrew the bolt 233, pull out the fixing block 232, manually push the columnar rod 23 to the ideal position, and then manually insert the fixing block 232 into the groove 231, and then manually screw the bolt 233 into the appropriate hole. When the gap of the baffle 2 is not enough or not accurate enough, turn on the power of the motor 27, and drive the threaded rod 26, the side plate 25 and the arc plate 24 to move back and forth through the rotation of the motor 27, and drive the mounting plate 28 and the slider 29 to move back and forth. When the arc plate 24 moves outward, the hole groove 112 will be unobstructed and the gas can be discharged. The arc plate 24 can be appropriately moved according to the required amount of discharged gas. When the exhaust hole 11 is realized, the gas discharge speed can be increased, the safety and application range can be increased, and the convenience of installation and disassembly can be improved.

[0036] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An air pressure balancing device in a protective housing of a numerically controlled machine tool, comprising a cylinder (1), a front side of the cylinder (1) being fixedly connected with an exhaust hole (11), a sealing plate (3) being provided on the upper side of the cylinder (1), and a slide groove (113) being provided at the bottom of the exhaust hole (11), characterized in that: A rotating baffle (2) is provided inside the exhaust hole (11) to rotatably adjust the exhaust gap, an arc-shaped plate (24) inside the exhaust hole (11) can increase the exhaust volume, and the sealing plate (3) is easy to install and disassemble and maintain air tightness.

2. The air pressure balancing device in the protective housing of a CNC machine tool according to claim 1, characterized in that: An annular groove (111) is provided inside the exhaust hole (11), a baffle (2) is rotatably connected inside the annular groove (111), a rotating rod (21) is rotatably connected inside the baffle (2), and the outer surfaces on both sides of the rotating rod (21) are fixedly connected to the inside of the exhaust hole (11).

3. The air pressure balancing device in the protective housing of a CNC machine tool according to claim 1, characterized in that: One end of a spring (22) is fixedly connected to the front side of the lower side of the baffle (2), and the other end of the spring (22) is fixedly connected to the front side of the inner surface of the exhaust hole (11). The number of the springs (22) is two, and one end of the other spring (22) is fixedly connected to the rear side of the upper side of the baffle (2), and the other end of the spring (22) is fixedly connected to the rear side of the inner surface of the exhaust hole (11). The front side of the lower side of the baffle (2) is fixedly connected to a columnar rod (23), and a groove (231) is provided on the outer surface of the columnar rod (23), and a fixing block (232) is slidably connected inside the groove (231), and a bolt (233) is threadedly connected to the outer surface of the fixing block (232).

4. The air pressure balancing device in the protective housing of a CNC machine tool according to claim 1, characterized in that: The outer surface of the arc-shaped plate (24) is fixedly connected to the end of the side plate (25), the rear side of the side plate (25) is rotatably connected to one end of a threaded rod (26), the other end of the threaded rod (26) is fixedly connected to the end of the output shaft of the motor (27), the other end of the motor (27) is fixedly connected to a mounting plate (28), the top of the mounting plate (28) is fixedly connected to a slider (29), and the top of the slider (29) is slidably connected to the inner surface of the slide groove (113).

5. The air pressure balancing device in the protective housing of a CNC machine tool according to claim 1, characterized in that: A circular groove (31) is provided at the bottom of the sealing plate (3), a sealing ring (32) is slidably connected inside the circular groove (31), the bottom of the sealing ring (32) is fixedly connected to the upper side of the cylinder (1), and a screw (33) is threadedly connected to the top of the sealing plate (3).

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