Machine tool spindle box

Abstract

The utility model discloses a machine tool spindle box, which relates to the machine tool field, and comprises a lower box body and an upper box body, one end of the lower box body and one end of the upper box body are respectively provided with a spindle groove, the inner wall of each spindle groove is bonded with a shock pad, and the other end of the upper surface of the upper box body is provided with a heat dissipation assembly. The two sides of the heat dissipation assembly are each provided with a filtering assembly, the two ends of the lower box body are each provided with two symmetrically-distributed locking plates, the two ends of the upper box body are each provided with two symmetrically-distributed connecting plates, and the connecting plates are matched with the locking plates. The upper box body and the lower box body are arranged, the upper box body and the lower box body are connected through the locking plates and the connecting plates at the two ends of the upper box body and the lower box body, so that the device is convenient to assemble and stable to assemble, the shock pad is arranged at the connecting port of the main shaft, and the influence of the main shaft on the box body during working is reduced due to the arrangement of the shock pad.

Description

Technical Field

[0001] The utility model belongs to the technical field of machine tools, and in particular relates to a main spindle box of a machine tool. Background Art

[0002] In the existing CNC machining technology, machine tools are generally composed of five major parts: base, saddle, worktable, column, and spindle box. These five components can be called the foundation of a machine tool. The spindle box is the most important executive component of the machine tool, which can realize Z-axis movement and spindle rotation. The spindle boxes of machine tools currently on the market have complex structures, are easily deformed, have poor heat dissipation, and have low structural strength, which affects the quality of machine tool parts. Since the spindle box of the machine tool itself will vibrate during workpiece processing, this will further affect the accuracy of the workpiece, resulting in more defects in the workpiece.

[0003] The utility model patent with publication number CN 214867289 U discloses a machine tool spindle box, which includes a spindle box body, a cover plate assembly and a spindle. The spindle is fixedly connected to the spindle box body, and the outer surface of the spindle box body is covered with a cover plate assembly. The cover plate assembly includes an end cover, a first side plate, a second side plate and a bottom cover plate. The end cover body is rectangular, and the middle part of the end cover has a circular opening matching the spindle, and the top of the end cover has two symmetrically arranged "concave" shaped protrusions. The first side plate body is rectangular, the first side plate is perpendicular to the end cover, the top surface of the first side plate is flush with the top surface of the "concave" shaped protrusion, and the second side plate is arranged next to the first side plate. The bottom of the spindle box body is fixedly connected to the bottom.

[0004] The above-mentioned spindle box connects various parts of the box body separately, so that the spindle box is easy to assemble, and a cover plate assembly is added to improve the vibration resistance. However, the above-mentioned spindle box does not take into account that the spindle will generate a large amount of heat when working. The above-mentioned spindle box does not have a heat dissipation assembly for heat dissipation, which makes the spindle box easily affected by high temperature. In view of this, the present utility model is specially proposed. Utility Model Content

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0006] A machine tool spindle box comprises a lower box body and an upper box body, one end of the lower box body and the upper box body are both provided with a spindle groove, the outer side of the spindle groove is provided with a flange connecting hole, a shock-absorbing pad is bonded on the inner wall of the spindle groove, the shock-absorbing pad is fitted with a bearing fixed on the flange seat, a heat dissipation component is provided at the other end of the upper surface of the upper box body, and filter components are provided on both sides of the heat dissipation component, two symmetrically distributed locking plates are provided at both ends of the lower box body, two symmetrically distributed connecting plates are provided at both ends of the upper box body, the connecting plates are adapted to the locking plates, positioning grooves are provided at the four corners of the upper surface of the lower box body, positioning columns are fixed at the four corners of the lower surface of the upper box body, the positioning columns are adapted to the positioning grooves, sealing strips are bonded to the upper surface of the lower box body and the lower surface of the upper box body, the two sealing strips are staggered, and the positioning columns and the positioning grooves are arranged on the outer side of the sealing strips.

[0007] Preferably, a slot is provided on the inner side of the locking plate, and a plurality of equally spaced vertically distributed slots are provided on the inner wall of one side of the slot. A limiting plate is provided inside the slot, and one end of the limiting plate is connected to the bottom of the slot through a first spring, and the other end of the limiting plate is provided as an inclined surface. One side of the limiting plate is connected to a sliding plate through a connecting block, and the sliding plate is provided on the outer side of the locking plate.

[0008] Preferably, one end of the connecting plate corresponds to the slot, and one end of the connecting plate is set as an inclined surface, and one side of one end of the connecting plate is provided with a plurality of equally spaced vertically distributed limiting grooves, and the limiting grooves correspond to the other end of the limiting plate.

[0009] Preferably, the heat dissipation assembly includes a plurality of heat conducting plates distributed at equal intervals and penetrating the other end of the upper surface of the upper box body, a mounting frame is provided on the outer side of the heat conducting plates, and a fan is fixed to the upper surface of the mounting frame by bolts.

[0010] Preferably, fixed blocks are fixed on both sides of one end of the mounting frame, grooves are opened on both sides of the other end of the mounting frame, movable blocks are inserted into the interior of the grooves, and one end of the movable block is connected to the bottom of the groove through a second spring.

[0011] Preferably, the filter assembly includes an L-shaped plate, a filter mesh plate is set in the middle of one side of the L-shaped plate, a sealing ring is bonded to the edge of the inner wall of one side of the L-shaped plate, a dovetail slider is fixed to the other side of the L-shaped plate, and dovetail grooves are opened on both sides of the upper surface of the other end of the upper box body, and the dovetail slider is adapted to the dovetail groove.

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

[0013] The utility model provides an upper box body and a lower box body, and the upper box body and the lower box body are connected by a plurality of locking plates and connecting plates at both ends, so that the device is easy to assemble and the assembly is stable. A shock-absorbing pad is provided at the connecting port of the main shaft, and the setting of the shock-absorbing pad reduces the influence of the main shaft on the box body when working.

[0014] The utility model has a heat dissipation component on the upper box body, and the fan on the heat dissipation component cooperates with the heat conductive sheet on the upper box body to play a good heat dissipation effect. At the same time, filter components are arranged on both sides of the mounting frame. The filter components play a role of filtering dust in the air to prevent dust from adhering to the heat conductive sheet and will not reduce the heat dissipation effect of the fan on the heat conductive sheet.

[0015] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In the attached picture:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the locking plate structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the connecting plate of the utility model.

[0020] Figure 4 This is a schematic diagram of the structure of the heat dissipation component of the utility model.

[0021] Figure 5 This is a schematic diagram of the structure of the filter assembly of the utility model.

[0022] In the figure: 1. lower box; 2. upper box; 3. shock-absorbing pad; 4. heat dissipation component; 5. filter component; 6. locking plate; 61. slot; 62. notch; 63. limit plate; 64. first spring; 7. connecting plate; 71. limit groove; 8. positioning groove; 9. positioning column; 10. sealing strip; 11. heat conducting plate; 12. mounting frame; 13. fan; 14. fixed block; 15. groove; 16. movable block; 17. first spring; 18. dovetail slide; 19. L-shaped plate; 20. filter screen plate; 21. sealing ring; 22. dovetail slider. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.

[0024] like Figures 1 to 5As shown, a machine tool spindle box comprises a lower box body 1 and an upper box body 2, and a spindle groove is provided at one end of the lower box body 1 and the upper box body 2, and a flange connecting hole is provided on the outer side of the spindle groove, and the flange connecting hole cooperates with bolts to fix the flange seat, and a bearing is installed on the flange seat, and the bearing is sleeved on the spindle, and a shock-absorbing pad 3 is bonded to the inner wall of the spindle groove, and the shock-absorbing pad 3 fits with the bearing fixed on the flange seat, which plays a shock-absorbing role and reduces the impact of the spindle on the box body when working, and positioning grooves 8 are provided at the four corners of the upper surface of the lower box body 1, and positioning columns 9 are fixed at the four corners of the lower surface of the upper box body 2, and the positioning columns 9 are adapted to the positioning grooves 8, which play a role of positioning connection, and the upper surface of the lower box body 1 and the lower surface of the upper box body 2 are bonded with sealing strips 10, and the two sealing strips 10 are staggered. The two sealing strips 10 cooperate to improve the sealing performance, and the positioning column 9 and the positioning groove 8 are arranged on the outer side of the sealing strip.

[0025] Specifically, a heat dissipation component 4 is arranged at the other end of the upper surface of the upper box body 2, and filter components 5 are arranged on both sides of the heat dissipation component 4. Two symmetrically distributed locking plates 6 are arranged at both ends of the lower box body 1. A slot 61 is opened on the inner side of the locking plate 6. A plurality of slots 62 with equal spacing and vertical distribution are opened on the inner wall of one side of the slot 61. A limit plate 63 is arranged inside the slot 62. One end of the limit plate 63 is connected to the bottom of the slot 62 through a first spring 64, so that the other end of the limit plate 63 is set as an inclined surface. One side of the limit plate 63 is connected to the bottom of the slot 62 through a first spring 64. The connecting block is connected with a slide, which is arranged on the outside of the locking plate and can drive the limit plate 63 to move. Two symmetrically distributed connecting plates 7 are arranged at both ends of the upper box body 2. One end of the connecting plate 7 corresponds to the slot 61, and one end of the connecting plate 7 is arranged as an inclined surface to facilitate insertion into the slot 61. One end of the connecting plate 7 is provided with a plurality of equally spaced vertically distributed limit grooves 71, and the limit grooves 71 correspond to the other end of the limit plate 63. The inclined surface of the limit plate 63 and the setting of the first spring 64 enable the limit plate 63 to be automatically inserted into the limit groove 71.

[0026] Specifically, the heat dissipation component 4 includes a plurality of equally spaced heat conducting sheets 11 which are arranged through the other end of the upper surface of the upper box body 2. The plurality of heat conducting sheets 11 play a role of rapid heat conduction. A mounting frame 12 is arranged on the outer side of the heat conducting sheet 11. A fan 13 is fixed to the upper surface of the mounting frame 12 by bolts. Extension plates are fixed at the four corners of the fan 13. Bolts are arranged on the extension plates. The fan 13 cooperates with the heat conducting sheet 11 to play a role of rapid heat dissipation. Fixed blocks 14 are fixed on both sides of one end of the mounting frame 12. Grooves 15 are opened on both sides of the other end of the mounting frame 12. A movable block 16 is inserted into the inside of the groove 15. One end of the movable block 16 is connected to the bottom of the groove 15 through a second spring 17.

[0027] More specifically, the filter assembly 5 includes an L-shaped plate 19, and a filter screen plate 20 is arranged in the middle of one side of the L-shaped plate 19. The filter screen plate 20 plays a role in filtering dust in the air. A sealing ring 21 is bonded to the edge of the inner wall of one side of the L-shaped plate 19, and the sealing ring 21 plays a sealing role. A dovetail slider 22 is fixed to the other side of the L-shaped plate 19, and dovetail grooves 18 are provided on both sides of the upper surface of the other end of the upper box body 2. The dovetail slider 22 is adapted to the dovetail groove 18, which plays a role in limiting the L-shaped plate 19 without affecting the movement of the L-shaped plate 19.

[0028] When installing the utility model, first install the driving mechanism (motor and reduction gear) in the lower box body 1 and the upper box body 2, then insert the positioning column 9 on the upper box body 2 into the positioning groove 8 on the lower box body 1, until the two sealing strips 10 are in contact with each other, and then the connecting plate 7 is inserted into the slot 61 on the locking plate 6. Before that, the limiting plate 63 is driven to move into the notch 62 by the sliding piece on the outer side of the locking plate 6, and the first spring 64 is compressed, and then the limiting plate 63 on the locking plate 6 is released. The limiting plate 63 is automatically snapped into the limiting groove 71 under the action of the first spring 64, and the connecting plate 7 is limited. At this time, the connection between the lower box body 1 and the upper box body 2 is completed;

[0029] The spindle generates a large amount of heat when working, and the heat is transmitted to the outside of the upper box body 2 through multiple heat conducting sheets 11. The fan 13 is started, and the fan 13 dissipates heat to the part of the heat conducting sheet 11 located outside the upper box body 2, thereby improving the heat dissipation effect of the device. The air entering the mounting frame 12 is filtered by the filter screen 20 on the L-shaped plate 19 to prevent dust from adhering to the heat conducting sheet 11. After the filter screen 20 has been used for a period of time, the movable stopper 16 is pressed and pressed into the groove 15 to compress the second spring 17, and then the L-shaped plate 19 is moved until the swallow The tail slider 22 is separated from the dovetail slide 18. At this time, the filter screen plate 20 can be disassembled and cleaned, and then a new filter screen plate 20 can be replaced. The dovetail slider 22 on the L-shaped plate 19 is inserted into the dovetail slide 18, and then the movable baffle 16 is released. At this time, the movable baffle 16 is blocked by the L-shaped plate 19 until the L-shaped plate 19 contacts the fixed block 14. At this time, the movable block 16 is reset under the action of the second spring 17, and the fixed block 14 cooperates with the movable block 16 to limit the L-shaped plate 19, so that the filter screen plate 20 on the L-shaped plate 19 plays a stable filtering role.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A machine tool spindle box, comprising a lower box body (1) and an upper box body (2), wherein one end of each of the lower box body (1) and the upper box body (2) is provided with a spindle groove, and a shock-absorbing pad (3) is bonded to the inner wall of the spindle groove, wherein: A heat dissipation component (4) is arranged at the other end of the upper surface of the upper box body (2), and filter components (5) are arranged on both sides of the heat dissipation component (4). Two symmetrically distributed locking plates (6) are arranged at both ends of the lower box body (1), and two symmetrically distributed connecting plates (7) are arranged at both ends of the upper box body (2), and the connecting plates (7) are matched with the locking plates (6). Positioning grooves (8) are opened at the four corners of the upper surface of the lower box body (1), and positioning columns (9) are fixed at the four corners of the lower surface of the upper box body (2), and the positioning columns (9) are matched with the positioning grooves (8). The upper surface of the lower box body (1) and the lower surface of the upper box body (2) are both bonded with sealing strips (10), and the two sealing strips (10) are staggered.

2. A machine tool spindle box according to claim 1, characterized in that: A slot (61) is provided on the inner side of the locking plate (6), a plurality of slots (62) vertically distributed at equal intervals are provided on the inner wall of one side of the slot (61), a limiting plate (63) is provided inside the slot (62), and one end of the limiting plate (63) is connected to the bottom of the slot (62) via a first spring (64).

3. A machine tool spindle box according to claim 1, characterized in that: One end of the connecting plate (7) corresponds to the slot (61), and one end of the connecting plate (7) is provided with a plurality of equally spaced vertically distributed limiting grooves (71), and the limiting grooves (71) correspond to the other end of the limiting plate (63).

4. A machine tool spindle box according to claim 1, characterized in that: The heat dissipation assembly (4) comprises a plurality of heat conducting plates (11) which are arranged at equal intervals and penetrate the other end of the upper surface of the upper box body (2); a mounting frame (12) is arranged on the outer side of the heat conducting plates (11); and a fan (13) is fixed to the upper surface of the mounting frame (12) by bolts.

5. A machine tool spindle box according to claim 4, characterized in that: Fixed blocks (14) are fixed on both sides of one end of the mounting frame (12), grooves (15) are opened on both sides of the other end of the mounting frame (12), and a movable block (16) is inserted into the interior of the groove (15), and one end of the movable block (16) is connected to the bottom of the groove (15) through a second spring (17).

6. A machine tool spindle box according to claim 1, characterized in that: The filter assembly (5) comprises an L-shaped plate (19), a filter screen plate (20) is arranged in the middle of one side of the L-shaped plate (19), a sealing ring (21) is bonded to the edge of the inner wall of one side of the L-shaped plate (19), a dovetail slider (22) is fixed to the other side of the L-shaped plate (19), and dovetail grooves (18) are provided on both sides of the upper surface of the other end of the upper box body (2), and the dovetail slider (22) is adapted to the dovetail groove (18).

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