Noise reduction structure of numerical control machine tool

Abstract

The utility model provides a noise reduction structure of a numerically-controlled machine tool, belongs to the technical field of noise reduction of numerically-controlled machine tools, and aims to solve the problems that the elimination effect is poor when vibration force generated by the numerically-controlled machine tool is eliminated; and noise generated by mechanical friction is inconvenient to block. Comprising a numerically-controlled machine tool body. A first damping structure is fixedly arranged at the bottom of the numerical control machine tool body, and a connecting assembly is fixedly arranged in the first damping structure. A second damping structure is movably arranged in the connecting assembly. By arranging a vertical shock absorber, vibration generated by the numerical control machine tool body can be preliminarily eliminated; meanwhile, vibration force generated by the numerical control machine tool body can be decomposed into transverse vibration force and vertical vibration force through a connecting base A, a connecting plate A, a vertical plate and a transverse rod, and the vibration force generated by the numerical control machine tool body can be further eliminated through a transverse damper and a damping air bag; and therefore, the vibration force generated by the numerical control machine tool can be decomposed, and the vibration force can be doubly counteracted.

Description

Technical Field

[0001] The utility model belongs to the technical field of noise reduction of numerical control machine tools, and more specifically, particularly relates to a noise reduction structure of numerical control machine tools. Background Art

[0002] CNC machine tools are an important type of mechanical equipment. During the processing, they will generate a lot of noise due to mechanical friction and vibration. In order to reduce the impact of noise pollution on the outside world, vibration reduction and noise reduction structures are usually set in the machine tool structure.

[0003] Existing CNC machine tools usually use vibration-damping pads to eliminate the vibration noise generated by the CNC machine tools. However, it is not convenient to decompose the vibration generated by the CNC machine tools by only using vibration-damping pads, and thus the elimination effect is not good when eliminating the vibration force generated by the CNC machine tools. In addition, the structural thickness of the sliding door of the existing CNC machine tools is relatively thin, which is not convenient for blocking the noise generated by mechanical friction, thereby reducing the noise reduction effect of the CNC machine tools. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a noise reduction structure for CNC machine tools to solve the problem proposed in the above background technology that the vibration force generated by CNC machine tools is not effectively eliminated; and the structure thickness of the sliding door of the existing CNC machine tools is relatively thin, which is not convenient for blocking the noise generated by mechanical friction.

[0005] The utility model provides a noise reduction structure for a numerically controlled machine tool, which is achieved by the following specific technical means:

[0006] A noise reduction structure for a numerical control machine tool comprises a numerical control machine tool body; a polyester fiber sound-absorbing panel is fixedly installed on the inner wall of the outer shell of the numerical control machine tool body, a door panel is slidably arranged on the inner side of the numerical control machine tool body, and a handle is fixedly arranged on the outer side of the door panel; two groups of door panels are symmetrically arranged, and sound insulation strips A are fixedly arranged on the outer sides of the two groups of door panels; the number of sound insulation strips A is set in two groups, and the two groups of sound insulation strips A are fitted together, and the sound insulation strips A have a certain elasticity; a sound insulation frame is fixedly arranged on the inner side of the door panel, and a sound insulation board is fixedly arranged on the inner side of the sound insulation frame, and the number of the sound insulation frame and the sound insulation board is set in two groups; a sound insulation cavity is formed between the sound insulation board and the sound insulation frame, and the sound insulation cavity is filled with sound insulation cotton;

[0007] A first shock absorbing structure is fixedly arranged at the bottom of the CNC machine tool body, and a connecting component is fixedly arranged inside the first shock absorbing structure; a second shock absorbing structure is movably arranged inside the connecting component, and the second shock absorbing structure and the connecting component are arranged in three places in a straight line.

[0008] In at least some embodiments, the sound insulation board is provided with sound absorbing holes in the interior thereof, and the sound absorbing holes are provided in a rectangular array, and the sound absorbing holes completely penetrate the sound insulation board.

[0009] In at least some embodiments, one group of the sound insulation frames is fixedly provided with sound insulation strips B on the outside, and two groups of sound insulation strips B are provided; another group of the sound insulation frames is fixedly provided with sound insulation strips C on the outside, and the sound insulation strips C are movably provided between the two groups of sound insulation strips B.

[0010] In at least some embodiments, the first shock-absorbing structure includes: a fixed frame, a vertical shock absorber, a fixed seat and a supporting base plate; the fixed frame is fixedly arranged at the bottom of the CNC machine tool body; the vertical shock absorber is fixedly arranged at the bottom of the fixed frame, and the vertical shock absorber is symmetrically arranged at the bottom of the fixed frame; the fixed seat is fixedly arranged at the bottom of the vertical shock absorber; and the supporting base plate is fixedly arranged at the bottom of the fixed seat.

[0011] In at least some embodiments, the connecting assembly includes: a connecting seat A, a connecting plate A, a vertical plate, a connecting plate B and a connecting seat B; the connecting seat A is fixedly arranged at the bottom of the fixing frame; the connecting plate A is rotatably arranged at the bottom of the connecting seat A; the vertical plate is rotatably arranged at the end of the connecting plate A; the connecting plate B is rotatably arranged at the bottom of the vertical plate, and the connecting plate B and the connecting plate A are symmetrically arranged; the connecting seat B is rotatably arranged at the end of the connecting plate B, and the connecting seat B is fixedly arranged at the top of the fixing seat.

[0012] In at least some embodiments, the second shock-absorbing structure includes: a cross bar, a connecting seat, a shock-absorbing airbag and a transverse shock absorber; the cross bar is slidably arranged inside the vertical plate, and a spring member is arranged between the end of the cross bar and the outer side of the vertical plate; the connecting seat is fixedly arranged at both ends of the cross bar; the shock-absorbing airbag is fixedly arranged between the bottom of the connecting seat and the top of the fixed seat; the transverse shock absorber is fixedly arranged on the outer side of the vertical plate, and the transverse shock absorber is located between the two groups of vertical plates.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. In the utility model, by providing a vertical shock absorber, the vibration generated by the main body of the CNC machine tool can be preliminarily eliminated; at the same time, by using the connecting seat A and the connecting plate A as well as the vertical plate and the cross bar, the vibration force generated by the main body of the CNC machine tool can be decomposed into lateral and vertical directions, and by using the lateral shock absorber and the shock-absorbing airbag, the vibration force generated by the main body of the CNC machine tool can be further eliminated; thus, the vibration generated by the CNC machine tool can be easily and conveniently decomposed, and the vibration force can be doubly offset; this is conducive to ensuring the effect of eliminating the vibration force and preventing noise caused by the vibration of the CNC machine tool.

[0015] 2. In the utility model, by providing a sound insulation board, a polyester fiber sound-absorbing board on the inner wall of the main shell of the CNC machine tool, a sound insulation cavity and its internal sound insulation cotton, the noise generated during the workpiece processing can be blocked and eliminated; it is beneficial to prevent the noise generated during the workpiece processing from propagating to the outside of the CNC machine tool body; and by using sound insulation strips A, B and C, it is possible to prevent noise from spreading from the gap between the two sets of door panels; and thus it is possible to prevent the phenomenon that it is inconvenient to block the noise generated by mechanical friction due to the thin structure thickness of the sliding door of the CNC machine tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a structural schematic diagram of a door panel of the utility model.

[0018] Figure 3 It is a schematic diagram of the connection structure of the sound insulation frame of the utility model.

[0019] Figure 4 It is a schematic diagram of the upper surface structure of the fixing seat of the utility model.

[0020] Figure 5 It is a schematic diagram of the connection structure between the connection assembly and the second shock absorbing structure of the utility model.

[0021] Figure 6 It is a structural schematic diagram of the connection assembly of the utility model.

[0022] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0023] 1. CNC machine tool body; 101. Door panel; 102. Handle; 103. Sound insulation strip A; 104. Sound insulation frame; 1041. Sound insulation strip B; 1042. Sound insulation strip C; 105. Sound insulation board; 1051. Sound absorbing hole; 106. Sound insulation cavity;

[0024] 2. First shock absorbing structure; 201. Fixed frame; 202. Vertical shock absorber; 203. Fixed seat; 204. Supporting bottom plate;

[0025] 3. Connecting assembly; 301. Connecting seat A; 302. Connecting plate A; 303. Vertical plate; 304. Connecting plate B; 305. Connecting seat B;

[0026] 4. Second shock absorbing structure; 401. Cross bar; 402. Connecting seat; 403. Shock absorbing airbag; 404. Transverse shock absorber. DETAILED DESCRIPTION

[0027] The implementation of the utility model is further described in detail below in conjunction with the drawings and examples.

[0028] Embodiment 1:

[0029] As attached Figure 1 To Attachment Figure 6 As shown:

[0030] The utility model provides a noise reduction structure for a numerical control machine tool, comprising a numerical control machine tool body 1; a polyester fiber sound-absorbing board is fixedly installed on the inner wall of the outer shell of the numerical control machine tool body 1, and a door panel 101 is slidably arranged on the inner side of the numerical control machine tool body 1, and a handle 102 is fixedly arranged on the outer side of the door panel 101; the door panels 101 are symmetrically arranged in two groups, and sound insulation strips A103 are fixedly arranged on the outer sides of the two groups of door panels 101; the number of the sound insulation strips A103 is two groups, and the two groups of sound insulation strips A103 are fitted together, and the sound insulation strips A103 have a certain elasticity; the door panels 101 are symmetrically arranged in two groups, and the two groups of sound insulation strips A103 are fixedly arranged on the outer sides of the two groups of door panels 101; the number of the sound insulation strips A103 is two groups, and the two groups of sound insulation strips A103 are fitted together, and the sound insulation strips A103 have a certain elasticity; A soundproof frame 104 is fixedly arranged inside 101, and a soundproof board 105 is fixedly arranged inside the soundproof frame 104, and the number of the soundproof frame 104 and the soundproof board 105 is set to two groups; a soundproof cavity 106 is formed between the soundproof board 105 and the soundproof frame 104, and the inside of the soundproof cavity 106 is filled with soundproof cotton; its specific function is: by providing the soundproof board 105 and the polyester fiber sound-absorbing board on the inner wall of the shell of the CNC machine tool body 1, the soundproof cavity 106 and the soundproof cotton inside, the noise generated during the workpiece processing can be blocked and eliminated;

[0031] In the disclosed embodiment, a first shock absorbing structure 2 is fixedly provided at the bottom of the CNC machine tool body 1, and a connecting component 3 is fixedly provided inside the first shock absorbing structure 2; a second shock absorbing structure 4 is movably provided inside the connecting component 3, and the second shock absorbing structure 4 and the connecting component 3 are arranged in a straight line at three locations; sound absorbing holes 1051 are provided inside the sound insulation board 105, and the sound absorbing holes 1051 are provided in a rectangular array, and the sound absorbing holes 1051 completely penetrate the sound insulation board 105; a sound insulation strip B1041 is fixedly provided on the outside of one group of sound insulation frames 104, and two groups of sound insulation strips B1041 are provided; a sound insulation strip C1042 is fixedly provided on the outside of another group of sound insulation frames 104, and the sound insulation strip C1042 is movably provided between the two groups of sound insulation strips B1041; its specific function is: using the sound insulation strip A103, the sound insulation strip B1041 and the sound insulation strip C1042, it is possible to prevent noise from spreading from the gap between the two groups of door panels 101.

[0032] Embodiment 2:

[0033] As attached Figure 1 With attached Figure 4As shown: On the basis of the first embodiment, the first shock absorbing structure 2 includes: a fixed frame 201, a vertical shock absorber 202, a fixed seat 203 and a supporting base plate 204; the fixed frame 201 is fixedly arranged at the bottom of the CNC machine tool body 1; the vertical shock absorber 202 is fixedly arranged at the bottom of the fixed frame 201, and the vertical shock absorber 202 is symmetrically arranged at the bottom of the fixed frame 201; the fixed seat 203 is fixedly arranged at the bottom of the vertical shock absorber 202; the supporting base plate 204 is fixedly arranged at the bottom of the fixed seat 203; its specific function is: through the vertical shock absorber 202 symmetrically arranged at the bottom of the fixed frame 201, the vibration generated by the CNC machine tool body 1 can be preliminarily eliminated.

[0034] Embodiment three:

[0035] As attached Figure 4 To Attachment Figure 6 As shown: On the basis of the first and second embodiments, the connecting assembly 3 includes: a connecting seat A301, a connecting plate A302, a vertical plate 303, a connecting plate B304 and a connecting seat B305; the connecting seat A301 is fixedly arranged at the bottom of the fixing frame 201; the connecting plate A302 is rotatably arranged at the bottom of the connecting seat A301; the vertical plate 303 is rotatably arranged at the end of the connecting plate A302; the connecting plate B304 is rotatably arranged at the bottom of the vertical plate 303, and the connecting plate B304 and the connecting plate A302 are symmetrically arranged; the connecting seat B305 is rotatably arranged at the end of the connecting plate B304, and the connecting seat B305 is fixedly arranged at the top of the fixing seat 203; the second shock absorbing structure 4 includes: a cross bar 401, a connecting seat 402, a shock absorbing airbag 403 and a transverse Shock absorber 404; the cross bar 401 is slidably arranged inside the vertical plate 303, and a spring member is arranged between the end of the cross bar 401 and the outer side of the vertical plate 303; the connecting seat 402 is fixedly arranged at both ends of the cross bar 401; the shock absorbing airbag 403 is fixedly arranged between the bottom of the connecting seat 402 and the top of the fixed seat 203; the lateral shock absorber 404 is fixedly arranged on the outer side of the vertical plate 303, and the lateral shock absorber 404 is located between the two groups of vertical plates 303; its specific function is: by using the connecting seat A301 and the connecting plate A302 and the vertical plate 303 and the cross bar 401, the vibration force generated by the CNC machine tool body 1 can be decomposed into lateral and vertical directions, and by using the lateral shock absorber 404 and the shock absorbing airbag 403, the vibration force generated by the CNC machine tool body 1 can be further eliminated.

[0036] The specific usage and function of this embodiment are as follows:

[0037] In the utility model, when the workpiece needs to be processed, the two groups of door panels 101 are closed by the handle 102, so that the two groups of sound insulation strips A103 are fitted together, and the sound insulation strip C1042 is slidably placed between the two groups of sound insulation strips B1041; when the workpiece is processed and noise is generated, the polyester fiber sound-absorbing board on the inner wall of the shell of the CNC machine tool body 1 can be used in conjunction with the sound insulation board 105 and the sound-absorbing hole 1051 and the sound insulation cotton inside the sound insulation cavity 106 to block and eliminate the noise; the sound insulation strip A103, the sound insulation strip B1041 and the sound insulation strip C1042 can be used to close the gap between the two groups of door panels 101, which is beneficial to prevent noise from spreading from the gap between the two groups of door panels 101; when the processing of the workpiece causes the CNC machine tool body 1 to vibrate, the first First, the vertical shock absorber 202 is used to perform preliminary vibration reduction on the CNC machine tool body 1. At the same time, the connecting plate A302 rotates with the vibration force of the CNC machine tool body 1 through the connecting seat A301, and the connecting plate A302 drives the connecting plate B304 to rotate in the opposite direction through the vertical plate 303, so that the vertical plate 303 slides laterally on the outside of the cross bar 401, and the cross bar 401 moves up and down, thereby decomposing the vibration force generated by the CNC machine tool body 1, and at the same time, the lateral shock absorber 404 and the shock-absorbing airbag 403 between the two groups of vertical plates 303 are used to further offset the vibration force; thereby, the vibration generated by the CNC machine tool body 1 can be easily and conveniently decomposed, and the vibration force can be doubly offset; the CNC machine tool body 1 can be prevented from generating noise due to vibration.

Claims

1. A noise reduction structure for a CNC machine tool, characterized in that: include: A numerical control machine tool body (1); a polyester fiber sound-absorbing panel is fixedly installed on the inner wall of the outer shell of the numerical control machine tool body (1); a door panel (101) is slidably arranged on the inner side of the numerical control machine tool body (1), and a handle (102) is fixedly arranged on the outer side of the door panel (101); two groups of door panels (101) are symmetrically arranged, and sound insulation strips A (103) are fixedly arranged on the outer sides of the two groups of door panels (101); the number of sound insulation strips A (103) is two groups, and the two groups of sound insulation strips A (103) are in close contact with each other, and the sound insulation strip A (103) has a certain elasticity; a sound insulation frame (104) is fixedly arranged on the inner side of the door panel (101), and a sound insulation board (105) is fixedly arranged on the inner side of the sound insulation frame (104), and the number of the sound insulation frame (104) and the sound insulation board (105) is set to two groups; a sound insulation cavity (106) is formed between the sound insulation board (105) and the sound insulation frame (104), and the interior of the sound insulation cavity (106) is filled with sound insulation cotton; A first shock absorbing structure (2) is fixedly arranged at the bottom of the CNC machine tool body (1), and a connecting component (3) is fixedly arranged inside the first shock absorbing structure (2); a second shock absorbing structure (4) is movably arranged inside the connecting component (3), and the second shock absorbing structure (4) and the connecting component (3) are arranged in a straight line at three locations.

2. The noise reduction structure for a CNC machine tool according to claim 1, characterized in that: The sound insulation board (105) is provided with sound absorbing holes (1051) inside, and the sound absorbing holes (1051) are arranged in a rectangular array, and the sound absorbing holes (1051) completely penetrate the sound insulation board (105).

3. The noise reduction structure for a CNC machine tool according to claim 1, characterized in that: One group of the sound insulation frames (104) is fixedly provided with sound insulation strips B (1041) on the outside, and two groups of the sound insulation strips B (1041) are provided; another group of the sound insulation frames (104) is fixedly provided with sound insulation strips C (1042) on the outside, and the sound insulation strips C (1042) are movably provided between the two groups of the sound insulation strips B (1041).

4. The noise reduction structure for a CNC machine tool according to claim 1, characterized in that: The first shock absorbing structure (2) comprises: a fixing frame (201), a vertical shock absorber (202), a fixing seat (203) and a supporting base plate (204); the fixing frame (201) is fixedly arranged at the bottom of the CNC machine tool body (1); the vertical shock absorber (202) is fixedly arranged at the bottom of the fixing frame (201), and the vertical shock absorber (202) is symmetrically arranged at the bottom of the fixing frame (201); the fixing seat (203) is fixedly arranged at the bottom of the vertical shock absorber (202); and the supporting base plate (204) is fixedly arranged at the bottom of the fixing seat (203).

5. The noise reduction structure for a CNC machine tool according to claim 4, characterized in that: The connection assembly (3) comprises: a connection seat A (301), a connection plate A (302), a vertical plate (303), a connection plate B (304) and a connection seat B (305); the connection seat A (301) is fixedly arranged at the bottom of the fixing frame (201); the connection plate A (302) is rotatably arranged at the bottom of the connection seat A (301); the vertical plate (303) is rotatably arranged at the end of the connection plate A (302); the connection plate B (304) is rotatably arranged at the bottom of the vertical plate (303), and the connection plate B (304) and the connection plate A (302) are symmetrically arranged; the connection seat B (305) is rotatably arranged at the end of the connection plate B (304), and the connection seat B (305) is fixedly arranged at the top of the fixing seat (203).

6. The noise reduction structure for a CNC machine tool according to claim 5, characterized in that: The second shock absorbing structure (4) comprises: a cross bar (401), a connecting seat (402), a shock absorbing airbag (403) and a transverse shock absorber (404); the cross bar (401) is slidably arranged inside the vertical plate (303), and a spring member is arranged between the end of the cross bar (401) and the outer side of the vertical plate (303); the connecting seat (402) is fixedly arranged at both ends of the cross bar (401); the shock absorbing airbag (403) is fixedly arranged between the bottom of the connecting seat (402) and the top of the fixed seat (203); and the transverse shock absorber (404) is fixedly arranged on the outer side of the vertical plate (303).

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