A kind of auxiliary support slide rail device for main shaft of boring and milling machine

Abstract

The present invention relates to the technical field of auxiliary support slide rails for the spindle of a boring and milling machine, and discloses an auxiliary support slide rail device for the spindle of a boring and milling machine, including a plurality of support slide rails fixedly connected to the top of the device base, and a slide rail groove is provided on the inner side of the support slide rail. The push block of the present invention drives the rotating wheel on the rotating shaft to increase the extrusion force between the inner wall of the slide rail groove, and the first extrusion telescopic rod drives the push block to slide outward along the sliding groove, and the push block slides outward to drive the second extrusion telescopic rod to contract, and the second extrusion telescopic rod contracts to squeeze the pressure spring, and the contraction elastic force of the pressure spring increases. At this time, the second extrusion telescopic rod drives the pressing block to squeeze the side wall of the slide rail groove. Such a setting is conducive to close contact between the spindle box and the inner wall of the slide rail groove, thereby avoiding the spindle from shaking when it is extended and retracted. At the same time, the spindle box can maintain linear movement during the up and down movement, thereby ensuring the accuracy of the movement of the device.

Description

Technical Field

[0001] The invention relates to the technical field of auxiliary support slide rail equipment for a main shaft of a boring and milling machine, in particular to an auxiliary support slide rail device for a main shaft of a boring and milling machine. Background Art

[0002] The auxiliary support slide device of the boring and milling machine spindle is an important component for improving the stability and machining accuracy of the boring and milling machine spindle. Its main function is to provide additional support and reduce the deformation of the spindle caused by vibration, load changes, etc. during the machining process, thereby improving the machining quality and efficiency. Slide design: Usually made of high-strength materials with good wear resistance and corrosion resistance. The slide surface is precision machined to ensure smooth movement and low friction of the spindle. Auxiliary support structure: In the form of support columns or support arms, the load of the spindle is evenly distributed to reduce single-point loads. The height and angle of the support can be adjusted to meet the processing requirements of different workpieces.

[0003] The spindle auxiliary support slide rail equipment under the existing technology basically meets the requirements of industrial use. However, when the spindle box under the existing technology moves on the slide rail, mechanical vibration will be generated during the rotation of the spindle, and wear will be generated due to long-term sliding friction between the spindle box and the slide rail, which will cause a gap between the spindle box and the slide rail. Therefore, the spindle box is affected by mechanical vibration during the movement of the spindle box on the slide rail. Summary of the invention

[0004] The object of the present invention is to provide a spindle auxiliary support slide rail device for a boring and milling machine to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is an auxiliary support slide rail device for a spindle of a boring and milling machine, comprising a plurality of support slide rails fixedly connected to the top of a device base, a slide rail groove is provided on the inner side of the support slide rail, a support plate is fixedly connected to one end of the support slide rail away from the device base, a first drive motor is fixedly connected to the top of the support plate, an output shaft is fixedly connected to the output end of the first drive motor, a spindle box is slidably connected to the inside of the slide rail groove, and further comprising:

[0007] A vertical sliding mechanism includes a gear 1 fixedly connected to the end of the output shaft away from the first drive motor, a plurality of lead screws 1 are rotatably connected to the bottom of the support plate, lead screw 1 is rotatably connected to the main shaft box, and a gear 2 is fixedly connected to the end of the lead screw 1 close to the support plate, and gear 2 is meshed with gear 1.

[0008] Furthermore, a spindle rotation mechanism is arranged inside the spindle box, and the spindle rotation mechanism includes a second drive motor fixedly connected to the side wall of the spindle box, the output end of the second drive motor is fixedly connected to a rotating shaft, an end of the rotating shaft away from the second drive motor is fixedly connected to a plurality of protrusions, the protrusions are slidably connected to the spindle, and an end of the spindle box away from the second drive motor is fixedly connected to a fixed seat, and the spindle and the fixed seat rotate through each other.

[0009] Furthermore, a spindle ejection mechanism is provided inside the spindle box, and the spindle ejection mechanism includes a sliding block 1 slidably connected inside the spindle box, a bearing groove is opened at one end of the spindle close to the second drive motor, a bearing ring 1 is rotatably connected inside the bearing groove, and the outer wall of the bearing ring 1 is fixedly connected to the sliding block 1.

[0010] Furthermore, the spindle ejection mechanism also includes a third drive motor fixedly connected to the side wall of the spindle box, the output end of the third drive motor is fixedly connected to the second lead screw, the top of the sliding block is fixedly connected to the driving block, and the driving block is engaged with the threaded groove on the second lead screw.

[0011] Furthermore, a sliding auxiliary mechanism is arranged inside the main spindle box, and the sliding auxiliary mechanism includes an extrusion telescopic rod rotatably connected to a side wall of the sliding block, and a plurality of extrusion springs are sleeved on the extrusion telescopic rod. A plurality of sliding grooves are opened inside the main spindle box, and a pushing block is slidingly connected inside the sliding groove, and the pushing block is rotatably connected to the extrusion telescopic rod.

[0012] Furthermore, the sliding auxiliary mechanism also includes a plurality of extruding telescopic rods 2 rotatably connected to the side wall of the pushing block, a pressure spring is sleeved on the end of the extruding telescopic rod 2 away from the pushing block, and a pressing block is rotatably connected to the end of the extruding telescopic rod 2 away from the pushing block. The pressing block is slidably connected to a rotating shaft, and the middle part of the rotating shaft is rotatably connected to a rotating wheel.

[0013] Furthermore, a spindle auxiliary mechanism is arranged inside the spindle box, and the spindle auxiliary mechanism includes a sliding block 2 slidably connected to the inner wall of the spindle box, and a plurality of fixed columns are fixedly connected to the sliding block 2, and one end of the fixed column away from the sliding block 2 is fixedly connected to the sliding block 1.

[0014] Furthermore, the spindle auxiliary mechanism also includes a bearing ring 2 fixedly connected to the inside of the sliding block 2, the bearing ring 2 is slidably connected to the surface of the spindle, and a plurality of positioning holes are opened on the fixed seat, and the plurality of positioning holes correspond to the plurality of fixing columns.

[0015] The present invention has the following beneficial effects:

[0016] (1) In the present invention, when the sliding block 1 slides along the inside of the spindle box, the sliding block 1 drives the extrusion telescopic rod 1 to contract, and the extrusion telescopic rod 1 contracts the extrusion spring. At this time, the extrusion spring is compressed and the elastic force increases, and the pushing block drives the rotating wheel on the rotating shaft and the inner wall of the slide rail groove to increase the extrusion force, and the extrusion telescopic rod 1 drives the pushing block to slide outward along the sliding groove. The pushing block slides outward and drives the extrusion telescopic rod 2 to contract, and the extrusion telescopic rod 2 contracts the extrusion pressure spring. The elastic force of the pressure spring contracts and increases. At this time, the extrusion telescopic rod 2 drives the pressing block to increase the force of the side wall of the slide rail groove. This arrangement is conducive to making the spindle box and the inner wall of the slide rail groove in close contact, thereby avoiding the spindle from shaking when it is extended and retracted. At the same time, the spindle box can maintain a straight line movement during the up and down movement, thereby ensuring the accuracy of the movement of the device.

[0017] (2) According to the present invention, when the spindle auxiliary support slide rail device of the boring and milling machine is used, the first drive motor is started, and the output end of the first drive motor rotates to drive the gear 1 on the output shaft to rotate, and the gear 1 rotates to drive the screw 1 on the gear 2 to rotate, and the screw 1 rotates to drive the spindle box to move up or down along the groove of the slide rail, and the spindle box is moved up and down by clamping the two ends of the spindle box in the groove of the slide rail; by setting a spindle rotation mechanism, the output end of the second drive motor rotates to drive the spindle on the rotating shaft to rotate, and the spindle rotation drives the cutter head to rotate. In order to ensure the stable rotation of the spindle, multiple support points are set on the spindle surface, and a fixed seat is set to support the stable rotation of the cutter head end of the spindle, and a bearing ring 1 in the spindle ejection mechanism is rotatably connected to the bearing groove, and then a bearing ring 2 in the spindle auxiliary mechanism is rotatably connected to the spindle surface, and multiple fulcrums are set to ensure the stable rotation of the spindle.

[0018] (3) The present invention provides a spindle pushing mechanism. When the spindle is extended along the fixed seat, the third drive motor is first started. The output end of the third drive motor rotates to drive the lead screw 2 to rotate. The lead screw 2 rotates to drive the driving block engaged on the lead screw 2 to drive the sliding block 1 to slide along the inside of the spindle box toward one end of the fixed seat. At this time, the sliding block 1 pushes the spindle on the bearing ring 1 to move outward along the fixed seat. This arrangement realizes the function of stable extension and retraction of the spindle.

[0019] (4) The present invention sets a spindle auxiliary mechanism. When the sliding block 1 slides along the inside of the spindle box, the sliding block 1 drives the sliding block 2 on the fixed column to slide along the surface of the spindle. This arrangement is conducive to ensuring that the distance between the bearing ring 1 and the bearing ring 2 on the sliding block 1 remains constant, so that the distance between the two supporting points on the spindle remains constant. When the distance between the supporting points on the spindle remains constant, the rotation of the spindle will also remain constant, avoiding relative displacement between the two supporting points causing the spindle to swing. This arrangement is conducive to improving the stability of the spindle rotation when it is extended and retracted; when the fixed column moves to the inside of the positioning hole at one end of the fixed seat, the fixed column coincides with the positioning hole. This arrangement further ensures the stability of the spindle.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the present invention;

[0029] Figure 8 It is a schematic diagram of the structure of the present invention;

[0030] Fig. 9 It is a schematic diagram of the structure of the present invention;

[0031] Fig.10 It is a schematic diagram of the structure of the present invention.

[0032] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0033] In the figure: 1. Device base; 11. Support rail; 12. Slide rail groove; 13. Support plate; 14. First drive motor; 15. Output shaft; 16. Spindle box; 2. Vertical sliding mechanism; 201. Gear 1; 202. Lead screw 1; 203. Gear 2; 3. Spindle rotation mechanism; 301. Second drive motor; 302. Rotating shaft; 303. Bump; 304. Spindle; 305. Fixed seat; 4. Spindle ejection mechanism; 401. Sliding block 1; 402. Bearing groove ; 403, bearing ring one; 404, third drive motor; 405, lead screw two; 406, driving block; 5, sliding auxiliary mechanism; 501, extrusion telescopic rod one; 502, extrusion spring; 503, sliding groove; 504, pushing block; 505, extrusion telescopic rod two; 506, pressure spring; 507, pressing block; 508, rotating shaft; 509, rotating wheel; 6, spindle auxiliary mechanism; 601, sliding block two; 602, fixing column; 603, positioning hole; 604, bearing ring two. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example 1, please refer to Figure 1-Figure 8 As shown, the present invention is an auxiliary support slide rail device for the spindle of a boring and milling machine, comprising a plurality of support slide rails 11 fixedly connected to the top of a device base 1, a slide rail groove 12 is provided on the inner side of the support slide rail 11, a support plate 13 is fixedly connected to one end of the support slide rail 11 away from the device base 1, a first drive motor 14 is fixedly connected to the top of the support plate 13, an output shaft 15 is fixedly connected to the output end of the first drive motor 14, a spindle box 16 is slidably connected to the inside of the slide rail groove 12, and further comprising:

[0036] The vertical sliding mechanism 2 includes a gear 201 fixedly connected to the end of the output shaft 15 away from the first drive motor 14, and a plurality of lead screws 202 are rotatably connected to the bottom of the support plate 13. The lead screw 202 is rotatably connected to the spindle box 16, and the end of the lead screw 202 close to the support plate 13 is fixedly connected to a gear 203, and the gear 203 is meshed with the gear 201. The function of this component is that when the spindle auxiliary support slide device of the boring and milling machine is used, the first drive motor 14 is started, and the output end of the first drive motor 14 rotates to drive the gear 201 on the output shaft 15 to rotate, and the gear 201 rotates to drive the lead screw 202 on the gear 203 to rotate, and the lead screw 202 rotates to drive the spindle box 16 to move up or down along the slide groove 12. The up and down movement of the spindle box 16 is achieved by clamping the two ends of the spindle box 16 in the slide groove 12 and moving it up and down.

[0037] A spindle rotation mechanism 3 is arranged inside the spindle box 16, and the spindle rotation mechanism 3 includes a second drive motor 301 fixedly connected to the side wall of the spindle box 16, and the output end of the second drive motor 301 is fixedly connected to a rotating shaft 302, and the end of the rotating shaft 302 away from the second drive motor 301 is fixedly connected to a plurality of protrusions 303, and a spindle 304 is slidably connected to the protrusion 303, and the end of the spindle box 16 away from the second drive motor 301 is fixedly connected to a fixed seat 305, and the spindle 304 rotates through the fixed seat 305. The function of this component is to set the spindle rotation mechanism 3, and the output end of the second drive motor 301 rotates to drive the spindle 304 on the rotating shaft 302 to rotate, and the rotation of the spindle 304 drives the cutter head to rotate. In order to ensure the stable rotation of the spindle 304, a plurality of support points are set on the surface of the spindle 304, and the fixed seat 305 is set to support the stable rotation of the cutter head end of the spindle 304.

[0038] A spindle ejection mechanism 4 is provided inside the spindle box 16, and the spindle ejection mechanism 4 includes a sliding block 401 slidably connected inside the spindle box 16, and a bearing groove 402 is provided at one end of the spindle 304 close to the second drive motor 301, and a bearing ring 403 is rotatably connected inside the bearing groove 402, and the outer wall of the bearing ring 403 is fixedly connected to the sliding block 401.

[0039] The spindle ejection mechanism 4 also includes a third drive motor 404 fixedly connected to the side wall of the spindle box 16, the output end of the third drive motor 404 is fixedly connected to the second screw 405, the top of the sliding block 1 401 is fixedly connected to the driving block 406, the driving block 406 is meshed with the threaded groove on the second screw 405, the function of this component is to set the spindle ejection mechanism 4, when the spindle 304 is extended along the fixed seat 305, first start the third drive motor 404, the output end of the third drive motor 404 rotates to drive the second screw 405 to rotate, the second screw 405 rotates to drive the driving block 406 meshed on the second screw 405 to drive the sliding block 1 401 to slide along the inside of the spindle box 16 toward one end of the fixed seat 305, at this time the sliding block 1 401 pushes the spindle 304 on the bearing ring 1 403 to move outward along the fixed seat 305, such a setting realizes the function of stable extension and retraction of the spindle 304.

[0040] Embodiment 2 is different from Embodiment 1 in that: Figure 1-Figure 10 As shown, a sliding auxiliary mechanism 5 is arranged inside the spindle box 16, and the sliding auxiliary mechanism 5 includes an extrusion telescopic rod 501 rotatably connected to the side wall of a sliding block 401, and a plurality of extrusion springs 502 are sleeved on the extrusion telescopic rod 501. A plurality of sliding grooves 503 are opened inside the spindle box 16, and a pushing block 504 is slidably connected inside the sliding groove 503, and the pushing block 504 is rotatably connected to the extrusion telescopic rod 501.

[0041] The sliding auxiliary mechanism 5 also includes a plurality of extrusion telescopic rods 505 rotatably connected to the side wall of the pushing block 504, and a pressure spring 506 is sleeved on the end of the extrusion telescopic rod 505 away from the pushing block 504, and a pressing block 507 is rotatably connected to the end of the extrusion telescopic rod 505 away from the pushing block 504, and a rotating shaft 508 is slidably connected to the pressing block 507, and a rotating wheel 509 is rotatably connected to the middle part of the rotating shaft 508. The function of this component is that when the sliding block 401 slides along the inside of the spindle box 16, the sliding block 401 drives the extrusion telescopic rod 501 to contract, and the extrusion telescopic rod 501 contracts and squeezes the extrusion spring 502. At this time, the extrusion spring 502 is compressed and the elastic force increases, and the pushing block 504 drives the rotating shaft 5 The squeezing force between the rotating wheel 509 on 08 and the inner wall of the slide rail groove 12 increases, and the squeezing telescopic rod 1 501 drives the pushing block 504 to slide outward along the sliding groove 503. The pushing block 504 slides outward and drives the squeezing telescopic rod 2 505 to contract. The squeezing telescopic rod 2 505 contracts and squeezes the pressure spring 506. The contraction elastic force of the pressure spring 506 increases. At this time, the squeezing telescopic rod 2 505 drives the pressing block 507 to squeeze the side wall of the slide rail groove 12 with an increase in force. This arrangement is conducive to making the main shaft box 16 in close contact with the inner wall of the slide rail groove 12, thereby avoiding the shaking of the main shaft 304 during extension and retraction. At the same time, the main shaft box 16 can maintain a straight line movement during the up and down movement, thereby ensuring the accuracy of the movement of the device.

[0042] A spindle auxiliary mechanism 6 is arranged inside the spindle box 16, and the spindle auxiliary mechanism 6 includes a sliding block 601 slidably connected to the inner wall of the spindle box 16, and a plurality of fixed columns 602 are fixedly connected to the sliding block 601, and one end of the fixed column 602 away from the sliding block 601 is fixedly connected to the sliding block 1 401.

[0043] The spindle auxiliary mechanism 6 also includes a bearing ring 2 604 fixedly connected to the inside of the sliding block 2 601, and the bearing ring 2 604 is slidably connected to the surface of the spindle 304. A plurality of positioning holes 603 are opened on the fixed seat 305, and the plurality of positioning holes 603 correspond to a plurality of fixed columns 602. The function of this component is to set the spindle auxiliary mechanism 6. When the sliding block 1 401 slides along the inside of the spindle box 16, the sliding block 1 401 drives the sliding block 2 601 on the fixed column 602 to slide along the surface of the spindle 304. This setting is conducive to ensuring that the bearing ring 1 403 on the sliding block 1 401 is in contact with the spindle 304. The distance between the bearing rings 604 remains constant, so that the distance between the two supporting points on the main shaft 304 remains constant. When the distance between the supporting points on the main shaft 304 remains constant, the rotation of the main shaft 304 will also remain constant, avoiding relative displacement between the two supporting points and causing the main shaft 304 to swing during rotation. This arrangement is beneficial to improving the stability of the rotation of the main shaft 304 when it is extended and retracted; when the fixed column 602 moves to the inside of the positioning hole 603 at one end of the fixed seat 305, the fixed column 602 coincides with the positioning hole 603. This arrangement further ensures the stability of the main shaft 304.

[0044] A specific application of this embodiment is:

[0045] When the spindle auxiliary support slide device of the boring and milling machine is used, the first drive motor 14 is started, and the output end of the first drive motor 14 rotates to drive the gear 1 201 on the output shaft 15 to rotate, and the gear 1 201 rotates to drive the screw 1 202 on the gear 2 203 to rotate, and the screw 1 202 rotates to drive the spindle box 16 to move up or down along the slide groove 12, and the spindle box 16 is moved up and down by clamping the two ends of the spindle box 16 in the slide groove 12. The up and down movement of the spindle box 16 is achieved; by setting the spindle rotation mechanism 3, the output end of the second drive motor 301 rotates to drive the spindle 304 on the rotating shaft 302 to rotate, and the rotation of the spindle 304 drives the cutter head to rotate. In order to ensure the stable rotation of the spindle 304, a plurality of support points are set on the surface of the spindle 304, and the cutter head end of the spindle 304 is stably supported by setting a fixed seat 305. Fixed rotation, by setting the bearing ring 1 403 in the spindle pushing mechanism 4 to be rotatably connected with the bearing groove 402, and then by setting the bearing ring 2 604 in the spindle auxiliary mechanism 6 to be rotatably connected with the surface of the spindle 304, and by setting multiple fulcrums to ensure the stable rotation of the spindle 304; by setting the spindle pushing mechanism 4, when the spindle 304 is extended along the fixed seat 305, the third drive motor 404 is first started, and the output end of the third drive motor 404 rotates to drive the lead screw 2 405 to rotate, and the lead screw 2 405 rotates to drive the driving block 406 engaged on the lead screw 2 405 to drive the sliding block 1 401 to slide along the inside of the spindle box 16 toward one end of the fixed seat 305, at this time, the sliding block 1 401 pushes the spindle 304 on the bearing ring 1 403 to move outward along the fixed seat 305, so that the function of stable extension and retraction of the spindle 304 is realized;

[0046] When the sliding block 401 slides along the inside of the spindle box 16, the sliding block 401 drives the extrusion telescopic rod 1 501 to contract, and the extrusion telescopic rod 1 501 contracts and squeezes the extrusion spring 502. At this time, the extrusion spring 502 is compressed and the elastic force increases, and the pushing block 504 drives the rotating wheel 509 on the rotating shaft 508 to increase the extrusion force between the inner wall of the slide rail groove 12, and the extrusion telescopic rod 1 501 drives the pushing block 504 to slide outward along the sliding groove 503. The pushing block 504 slides outward and drives the extrusion telescopic rod 2 505 to contract, and the extrusion telescopic rod 2 505 contracts and squeezes the pressure spring 506. The contraction elastic force of the pressure spring 506 increases. At this time, the extrusion telescopic rod 2 505 drives the pressing block 507 to increase the force of squeezing the side wall of the slide rail groove 12. This arrangement is conducive to making the spindle box 16 in close contact with the inner wall of the slide rail groove 12, thereby preventing the spindle 304 from shaking when it is telescoped. At the same time, the spindle box 16 can maintain a straight line during the up and down movement. The spindle 304 is moved by the sliding block 401 when sliding along the inside of the spindle box 16, thereby ensuring the accuracy of the movement of the device; by setting the spindle auxiliary mechanism 6, when the sliding block 401 slides along the inside of the spindle box 16, the sliding block 401 drives the sliding block 2 601 on the fixed column 602 to slide along the surface of the spindle 304, such a setting is conducive to ensuring that the distance between the bearing ring 1 403 and the bearing ring 2 604 on the sliding block 401 remains constant, so that the distance between the two supporting points on the spindle 304 remains constant. When the distance between the supporting points on the spindle 304 remains constant, the rotation of the spindle 304 will also remain constant, avoiding the relative displacement between the two supporting points causing the spindle 304 to rotate and swing, and such a setting is conducive to improving the stability of the rotation of the spindle 304 when it is extended and retracted; when the fixed column 602 moves to the inside of the positioning hole 603 at one end of the fixed seat 305, the fixed column 602 coincides with the positioning hole 603, and such a setting further ensures the stability of the spindle 304.

[0047] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An auxiliary support slide rail device for a spindle of a boring and milling machine, comprising a plurality of support slide rails (11) fixedly connected to the top of a device base (1), a slide rail groove (12) being provided on the inner side of the support slide rail (11), a support plate (13) being fixedly connected to one end of the support slide rail (11) away from the device base (1), a first drive motor (14) being fixedly connected to the top of the support plate (13), an output shaft (15) being fixedly connected to the output end of the first drive motor (14), a spindle box (16) being slidably connected to the inside of the slide rail groove (12), characterized in that: Also includes: A vertical sliding mechanism (2), the vertical sliding mechanism (2) comprising a gear 1 (201) fixedly connected to an end of the output shaft (15) away from the first drive motor (14), a plurality of lead screws 1 (202) rotatably connected to the bottom of the support plate (13), the lead screws 1 (202) being rotatably connected to the spindle box (16), and a gear 2 (203) being fixedly connected to an end of the lead screw 1 (202) close to the support plate (13), the gear 2 (203) being meshed with the gear 1 (201); A spindle rotating mechanism (3) is arranged inside the spindle box (16), and the spindle rotating mechanism (3) comprises a second drive motor (301) fixedly connected to the side wall of the spindle box (16), the output end of the second drive motor (301) is fixedly connected to a rotating shaft (302), one end of the rotating shaft (302) away from the second drive motor (301) is fixedly connected to a plurality of protrusions (303), the protrusions (303) are slidably connected to a spindle (304), one end of the spindle box (16) away from the second drive motor (301) is fixedly connected to a fixing seat (305), and the spindle (304) and the fixing seat (305) are rotatably interpenetrating; A spindle ejection mechanism (4) is arranged inside the spindle box (16), and the spindle ejection mechanism (4) comprises a sliding block (401) slidably connected inside the spindle box (16); a bearing groove (402) is provided at one end of the spindle (304) close to the second drive motor (301); a bearing ring (403) is rotatably connected inside the bearing groove (402); and an outer wall of the bearing ring (403) is fixedly connected to the sliding block (401).

2. The auxiliary support slide rail device for the spindle of a boring and milling machine according to claim 1, characterized in that: The spindle ejection mechanism (4) further comprises a third drive motor (404) fixedly connected to the side wall of the spindle box (16), the output end of the third drive motor (404) being fixedly connected to the second lead screw (405), the top of the first sliding block (401) being fixedly connected to the driving block (406), the driving block (406) being meshed with the threaded groove on the second lead screw (405).

3. The auxiliary support slide rail device for the spindle of a boring and milling machine according to claim 2, characterized in that: The spindle box (16) is provided with a sliding auxiliary mechanism (5) inside, and the sliding auxiliary mechanism (5) includes an extrusion telescopic rod (501) rotatably connected to the side wall of a sliding block (401), and a plurality of extrusion springs (502) are sleeved on the extrusion telescopic rod (501). The spindle box (16) is provided with a plurality of sliding grooves (503) inside, and a push block (504) is slidably connected inside the sliding groove (503), and the push block (504) is rotatably connected to the extrusion telescopic rod (501).

4. The auxiliary support slide rail device for the main shaft of a boring and milling machine according to claim 3, characterized in that: The sliding auxiliary mechanism (5) further comprises a plurality of extruding telescopic rods (505) rotatably connected to the side wall of the pushing block (504); one end of the extruding telescopic rod (505) away from the pushing block (504) is sleeved with a pressure spring (506); one end of the extruding telescopic rod (505) away from the pushing block (504) is rotatably connected to a pressing block (507); a rotating shaft (508) is slidably connected to the pressing block (507); and a rotating wheel (509) is rotatably connected to the middle of the rotating shaft (508).

5. The auxiliary support slide rail device for the main shaft of a boring and milling machine according to claim 4, characterized in that: A spindle auxiliary mechanism (6) is arranged inside the spindle box (16), and the spindle auxiliary mechanism (6) includes a sliding block 2 (601) slidably connected to the inner wall of the spindle box (16), and a plurality of fixed columns (602) are fixedly connected to the sliding block 2 (601), and one end of the fixed column (602) away from the sliding block 2 (601) is fixedly connected to the sliding block 1 (401).

6. The auxiliary support slide rail device for the main shaft of a boring and milling machine according to claim 5, characterized in that: The spindle auxiliary mechanism (6) further comprises a second bearing ring (604) fixedly connected to the interior of the second sliding block (601), wherein the second bearing ring (604) is slidably connected to the surface of the spindle (304), and a plurality of positioning holes (603) are formed on the fixing seat (305), and the plurality of positioning holes (603) correspond to the plurality of fixing columns (602).

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