A damping structure of a horizontal machine tool for online repair

Abstract

The application discloses a damping structure of a horizontal machine tool for online repair and relates to the field of numerical control machining equipment. The damping structure comprises a horizontal numerical control feeding sliding table, the top of the horizontal numerical control feeding sliding table is movably connected with a sliding seat, the top of the sliding seat is fixedly connected with a stand column, heavy-load precision ball screws and a main shaft box are arranged on the two sides of the stand column; the bottom of the horizontal numerical control feeding sliding table is detachably connected with a fixing base, the bottom of the fixing base is provided with a mounting cavity, a plurality of damping assemblies are fixedly connected in the mounting cavity; the damping assembly comprises a bottom plate, a third buffer device is arranged on the upper side of the bottom plate, second buffer devices are arranged on the two sides of the third buffer device, and first buffer devices are arranged on the sides, which are away from the third buffer devices, of the second buffer devices; and rubber plates are fixedly connected to the bottom of the bottom plate. The technical problem that it is difficult to buffer the impact force in the working process by adopting bolt fixing in the rolling working process of the horizontal machine tool is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to numerical control processing equipment, in particular to a damping structure of a horizontal machine tool for online repair. BACKGROUND

[0002] The rolling mill housing, also known as the frame or frame body, is an important component of hot rolling, cold rolling, continuous rolling and other rolling mills, and is an important equipment for producing plates and strips.

[0003] In plate and strip rolling, the impact force of the billet on the work roll reaches a peak value at the moment when the billet contacts the work roll. At the moment when the rolling mill is throwing the steel, the work roll returns to its original position instantaneously without being controlled by the rolling force. Therefore, during continuous rolling, a large impact force is formed on the rolling mill housing at the moment when the work roll bites the steel and throws the steel. If the sliding plate fastening bolts are loose and a gap is formed between the rolling mill housing and the sliding plate, the sliding plate and the frame will repeatedly hit each other when the work roll bites the steel and throws the steel, which will cause wear on the mating surface, bolt breakage and other problems. However, the horizontal machine tool repeatedly hits during work to form a large impact force. However, during the rolling process of the horizontal machine tool, the bolts are fixed, making it difficult to buffer the impact force during work. When the torque of the bolt fixation is small, the fastening bolts are prone to looseness. When the torque of the bolt fixation is large, the bolts are prone to breakage.

[0004] Therefore, the present application is proposed. SUMMARY

[0005] To solve the above technical problems, the basic idea of the technical solution of the present application is:

[0006] A damping structure of a horizontal machine tool for online repair, comprising a horizontal numerical control feeding sliding table, a sliding seat movably connected to the top of the horizontal numerical control feeding sliding table, a stand column fixedly connected to the top of the sliding seat, a heavy load precision ball screw and a spindle box arranged on both sides of the stand column.

[0007] A fixing seat detachably connected to the bottom of the horizontal numerical control feeding sliding table, an installation cavity arranged at the bottom of the fixing seat, and a plurality of sets of damping assemblies fixedly connected inside the installation cavity.

[0008] The damping assembly comprises a bottom plate, a third buffer device installed on the upper side of the middle of the bottom plate, a second buffer device arranged on both sides of the third buffer device, and a first buffer device installed on the side of the second buffer device opposite the third buffer device.

[0009] A rubber plate fixedly connected to the bottom of the bottom plate.

[0010] In a further technical solution, first buffer devices are symmetrically fixedly arranged at both ends of the top surface of the bottom plate, and the first buffer device comprises a first buffer shell and a first limiting column.

[0011] The first spring is fixed inside the first buffer shell, the first limiting column is adapted to be inserted into the first buffer shell and is provided with an abutting plate, and the abutting plate is fixedly connected with the top of the first spring; the bottom of the first spring is fixedly connected with the inner wall of the bottom of the first buffer shell.

[0012] The top of the first limiting column is fixedly connected with a groove box, and the mounting cavity is internally mounted with a buffer block adapted to the groove box.

[0013] In a further technical solution, the top of the groove box is provided with an opening, and the bottom of the groove box is provided with two groups of parallel first limiting columns.

[0014] In a further technical solution, the second buffer device comprises a second buffer shell, the second buffer shell is mounted on the bottom plate, the second buffer shell is internally mounted with a second spring, the top of the second spring is mounted with a buffer piece, the top of the buffer piece is mounted with a third spring, the top of the third spring is fixedly connected with a fixed block, and the fixed block is fixedly connected with the fixed seat.

[0015] In a further technical solution, the top of the second buffer shell is provided with a notch portion, and the notch portion is adapted to mount the buffer piece;

[0016] The buffer piece comprises an upper fixed plate, a short connecting column and a lower fixed plate, the top end of the short connecting column is fixedly connected with the upper fixed plate, and the bottom of the short connecting column is fixedly connected with the lower fixed plate;

[0017] The short connecting column is adapted to penetrate through the notch portion, and the sizes of the upper fixed plate and the lower fixed plate are greater than the size of the notch portion;

[0018] The top of the upper fixed plate is fixedly connected with the bottom of the third spring, and the bottom of the lower fixed plate is fixedly connected with the top of the second spring.

[0019] In a further technical solution, the third buffer device comprises a permanent magnet block, a second limiting column, a fourth spring, a magnetic block, a rubber sleeve and a rubber pad;

[0020] The top surface of the bottom plate is fixedly connected with a permanent magnet block in the middle, the upper portion of the permanent magnet block is fixedly connected with a second limiting column, the outer portion of the second limiting column is mounted with a fourth spring, and the top end of the second limiting column is provided with a magnetic block repulsive to the permanent magnet block;

[0021] The outer portion of the magnetic block is provided with a rubber sleeve, and the top end of the rubber sleeve is fixedly connected with a rubber pad.

[0022] In a further technical solution, the rubber sleeve is internally mounted with a magnetic block, and the magnetic block is fixedly connected with the rubber pad;

[0023] The interior of the rubber sleeve is provided with an embedded ring adapted to abut against the fourth spring.

[0024] In a further technical solution, the fixed seat comprises a clamping groove, a support plate part one, a support plate part two and a bolt, the top surface of the fixed seat is provided with a clamping groove on both sides, the upper part of the fixed seat is provided with a support plate part one on both sides, the lower part of the fixed seat is provided with a support plate part two on both sides, and the support plate part two is located at the lower end of the support plate part.

[0025] The surface of the support plate part two is provided with a plurality of groups of bolts and is connected with the transverse numerical control feeding slide table.

[0026] In a further technical solution, the bottom surface of the transverse numerical control feeding slide table is provided with a protrusion, and the clamping groove is matched with the protrusion on the bottom surface of the transverse numerical control feeding slide table.

[0027] Beneficial effects:

[0028] 1. The fixed seat is fixedly arranged at the bottom end of the transverse numerical control feeding slide table, so that the main body of the horizontal machine tool is fixed, the difficulty during installation is reduced, and the middle part of the bottom end of the transverse numerical control feeding slide table and the inside of the fixed seat are provided with three groups of buffer devices. When the spindle box repeatedly hits the slide up and down, the transverse numerical control feeding slide table will extrude the damping assembly. The damping assembly can buffer the impact force generated during the work of the slide, the vertical column, the heavy load precision ball screw and the spindle box, slow down the wear of the bottom surface of the slide, and slow down the frequency of problems such as loosening and fracture of the bolts of the transverse numerical control feeding slide table.

[0029] 2. The bottom plate of the damping assembly is provided with a rubber plate, the damping assembly is buffered by the rubber plate, the middle part of the fixed seat is fixedly provided with a first buffer device, the middle part of the bottom plate is fixedly provided with a permanent magnet block, the top end of the first buffer device is provided with a magnetic block, when the first buffer device vibrates up and down, the magnetic block and the permanent magnet block will generate a reaction force to offset the vibration generated by the device, buffer the fourth spring, the rubber sleeve outside the magnetic block can prevent metal dust from entering the inside, and the rubber plate and the rubber pad slow down the magnetic attraction generated during the work of the horizontal machine tool, and slow down the generation of larger noise. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below. Obviously, other drawings can also be obtained by those skilled in the art without creative labor.

[0031] In the drawings:

[0032] Figure 1It is a perspective view of the overall structure of the present application;

[0033] Figure 2 It is a right side view of the overall structure in the present application;

[0034] Figure 3 It is a left side view of the overall structure in the present application;

[0035] Figure 4 It is an end side view of the fixing seat in the present application;

[0036] Figure 5 It is a vertical sectional view along the second limiting column in the present application; Figure 4

[0037] It is an enlarged view of A part of the present application; Figure 6 Figure 5 It is an enlarged view of B part of the present application;

[0038] Figure 7 Figure 5 It is an enlarged view of B part of the present application;

[0039] Figure 8 It is a front view of the fixing seat structure in the present application.

[0040] In the figure: 1, transverse numerical control feeding slide table; 12, fixing seat; 121, clamping groove; 122, support plate part one; 123, support plate part two; 124, bolt;

[0041] 2, damping assembly; 21, bottom plate; 22, rubber plate;

[0042] 23, first buffering device; 231, first buffering shell; 232, first spring; 233, first limiting column; 234, groove box; 235, buffering block;

[0043] 24, second buffering device; 241, second buffering shell; 242, second spring; 244, third spring; 245, fixing block; 246, upper fixing plate; 247, short connecting column; 248, lower fixing plate;

[0044] 25, third buffering device; 251, permanent magnet block; 252, second limiting column; 253, fourth spring; 254, magnetic block; 255, rubber sleeve; 256, rubber pad; 257, built-in ring;

[0045] 3, slide; 4, column; 5, heavy load precision ball screw; 6, main shaft box. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical scheme and advantages of the present application more clear and explicit, the present application is further described in detail below in combination with embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not used to limit the present application.​​

[0047] The application principles of the present application are further described below in conjunction with the drawings and specific embodiments.

[0048] Embodiment 1

[0049] As Figures 1-4 shown, a technical solution is provided for the present application, a horizontal machine tool, comprising a transverse numerical control feeding sliding table 1, a sliding seat 3 movably connected to the top of the transverse numerical control feeding sliding table 1, a vertical column 4 fixedly connected to the top of the sliding seat 3, heavy-load precision ball screws 5 and a spindle box 6 arranged on both sides of the vertical column 4, a fixed seat 12 detachably connected to the bottom of the transverse numerical control feeding sliding table 1, and a plurality of sets of damping assemblies 2 fixedly connected inside the fixed seat 12. The damping assembly 2 comprises a bottom plate 21, a third buffer device 25 installed on the upper side of the middle part of the bottom plate 21, second buffer devices 24 arranged on both sides of the third buffer device 25, and first buffer devices 23 installed on the side of the second buffer devices 24 opposite to the third buffer device 25; and a rubber plate 22 fixedly connected to the bottom of the bottom plate 21.

[0050] In this embodiment, the horizontal machine tool is fixed by arranging the fixed seat 12 on both sides of the bottom end of the transverse numerical control feeding sliding table 1, thereby fixing the main body of the horizontal machine tool and reducing the difficulty in installation. Three sets of buffer devices are arranged in the middle part of the bottom end of the transverse numerical control feeding sliding table 1 and inside the fixed seat 12. When the spindle box 6 repeatedly hits the sliding seat 3 up and down, the transverse numerical control feeding sliding table 1 will squeeze the damping assembly 2 at this time. The damping assembly 2 can buffer the impact force generated during the work of the heavy-load precision ball screws 5 and the spindle box 6 on the sliding seat 3 and the vertical column 4, thereby reducing the abrasion of the bottom surface of the sliding seat 3 and the frequency of problems such as loosening and fracture of the parts fixing the transverse numerical control feeding sliding table 1.

[0051] Embodiment 2

[0052] As Figures 5 to 8 shown, another embodiment of the present application is based on embodiment 1. The third buffer device 25 comprises a permanent magnet block 251, a second limiting column 252, a fourth spring 253, a magnetic block 254, a rubber sleeve 255, and a rubber pad 256. The permanent magnet block 251 is fixedly connected to the top surface of the middle part of the bottom plate 21. The second limiting column 252 is fixedly connected to the upper part of the permanent magnet block 251. The fourth spring 253 is installed outside the second limiting column 252. The magnetic block 254 is arranged on the top end of the second limiting column 252 and repels the permanent magnet block 251. The rubber sleeve 255 is arranged outside the magnetic block 254. The rubber pad 256 is fixedly connected to the top end of the rubber sleeve 255. The magnetic block 254 is installed inside the rubber sleeve 255 and fixedly connected to the rubber pad 256. The rubber sleeve 255 is internally provided with an embedded ring 257 which is adapted to abut on the fourth spring 253.

[0053] In this embodiment, the bottom of the bottom plate 21 of the damping assembly 2 is provided with a rubber plate 22, which buffers the overall damping assembly 2. The bottom rubber plate 22 releases the impact energy. The first buffer device 23 is fixedly arranged in the middle of the fixed seat 12. The middle of the bottom plate 21 is fixedly provided with a permanent magnet block 251. The top end of the first buffer device 23 is provided with a magnetic block 254. When the first buffer device 23 vibrates up and down, the magnetic block 254 and the permanent magnet block 251 will generate a magnetic reaction force to alleviate the downward vibration generated by the device. The fourth spring 253 is buffered. The magnetic block 254 is provided with a rubber sleeve 255 outside to prevent metal dust from entering the inside. The rubber plate 22 and the rubber pad 256 reduce the magnetic attraction force generated during the operation of the horizontal machine tool, and reduce the noise generated.

[0054] Specifically, the first buffer device 23 includes a first buffer shell 231 and a first limiting column 233. The first buffer shell 231 is fixedly provided with a first spring 232 inside. The first limiting column 233 is adapted to be inserted into the first buffer shell 231 and is provided with an abutting plate. The abutting plate is fixedly connected with the top of the first spring 232. The bottom of the first spring 232 is fixedly connected with the inner wall of the bottom of the first buffer shell 231. The top of the first limiting column 233 is fixedly connected with a groove box 234. The installation cavity is internally provided with a buffer block 235 matched with the groove box 234. The top of the groove box 234 is provided with an opening. The bottom of the groove box 234 is provided with two groups of parallel first limiting columns 233.

[0055] In this embodiment, the first buffer shell 231 is fixedly connected to the top surface of the bottom plate 21. When the first buffer device 23 operates, the device moves up and down and generates vibration. The first buffer device 23 can be limited and fixed. The first buffer shell 231 is internally provided with multiple groups of first springs 232 and first limiting columns 233. Three groups of components are fixedly connected with the groove box 234. When moving up and down, the buffer block 235 impacts the groove box 234, thereby buffering and damping.

[0056] Specifically, the third buffer device 25 is symmetrically provided with the second buffer device 24 on both sides, the second buffer device 24 comprises a second buffer shell 241, the second buffer shell 241 is installed on the bottom plate 21, a second spring 242 is installed in the second buffer shell 241, a buffer piece is installed at the top of the second spring 242, a third spring 244 is installed at the top of the buffer piece, a fixed block 245 is fixedly connected to the top of the third spring 244, and the fixed block 245 is fixedly connected with the fixed seat 12. A notch portion is arranged at the top of the second buffer shell 241, and the notch portion is suitable for installing the buffer piece; the buffer piece comprises an upper fixed plate 246, a short connecting column 247 and a lower fixed plate 248, the top end of the short connecting column 247 is fixedly connected with the upper fixed plate 246, and the bottom of the short connecting column 247 is fixedly connected with the lower fixed plate 248; the short connecting column 247 is suitable for penetrating through the notch portion, and the sizes of the upper fixed plate 246 and the lower fixed plate 248 are greater than the size of the notch portion; the top of the upper fixed plate 246 is fixedly connected with the bottom of the third spring 244, and the bottom of the lower fixed plate 248 is fixedly connected with the top of the second spring 242.

[0057] In the embodiment, the second buffer shell 241 plays a fixing role, the third spring 244 pushes the external buffer piece to slide in the second buffer shell 241, and the internal buffer piece extrudes the second spring 242, and in the process, the buffer piece is worn in the internal second buffer shell 241, so that the downward impact energy is consumed, thereby reducing the vibration during the operation of the device.

[0058] Specifically, the fixed seat 12 comprises a clamping groove 121, a support plate part one 122, a support plate part two 123 and a bolt 124, the top surface of the fixed seat 12 is provided with the clamping groove 121 on both sides, the upper part of the fixed seat 12 is provided with the support plate part one 122 on both sides, the lower part of the fixed seat 12 is provided with the support plate part two 123 on both sides, and the support plate part two 123 is located below the support plate part one 122; a plurality of groups of bolts 124 are installed on the surface of the support plate part two 123 and connected with the horizontal numerical control feeding slide table 1. The bottom surface of the horizontal numerical control feeding slide table 1 is provided with a protrusion, and the clamping groove 121 is matched with the protrusion on the bottom surface of the horizontal numerical control feeding slide table 1.

[0059] In the embodiment, the support plate part one 122 of the fixed seat 12 is connected with the horizontal machine tool, so that the product to be fixed can be conveniently installed, the support plate part two 123 is an L-shaped support plate, and the support plate part two 123 can be connected with other workbenches to protect and isolate the damping assembly 2.

[0060] In the embodiment, the horizontal numerical control feeding slide table 1 is further limited, and the problem of loosening of the two side fixing assemblies after left and right movement is alleviated.

[0061] The first spring, the second spring, the third spring and the fourth spring in the application all absorb and temporarily store impact energy, and then release the energy by moving downward through the downward rubber plate 22, or by extruding the first limiting column and the second limiting column to rub and wear the energy in the shell to release the energy, thereby avoiding the large reciprocating motion of the spring, thereby achieving the damping effect, and if necessary, a damper is installed at the bottom of the bottom plate 21 to achieve complete damping effect.

[0062] It is apparent to those skilled in the art that the application is not limited to the details of the foregoing exemplary embodiments, and that the application can be implemented in other specific forms without departing from the spirit or essential characteristics of the application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

[0063] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A damping structure of a horizontal machine tool for online repair, comprising a transverse numerical control feeding sliding table (1), a sliding seat (3) movably connected to the top of the transverse numerical control feeding sliding table (1), a column (4) fixedly connected to the top of the sliding seat (3), and a heavy load precision ball screw (5) and a spindle box (6) arranged on both sides of the column (4); characterized in that: a fixing seat (12) is detachably connected to the bottom of the transverse numerical control feeding sliding table (1), a mounting cavity is arranged at the bottom of the fixing seat (12), and a plurality of groups of damping assemblies (2) are fixedly connected inside the mounting cavity; the damping assembly (2) comprises a bottom plate (21), a third buffer device (25) is mounted on the upper side of the middle of the bottom plate (21), and second buffer devices (24) are arranged on both sides of the third buffer device (25), and a first buffer device (23) is mounted on the side of each second buffer device (24) away from the third buffer device (25); a rubber plate (22) is fixedly connected to the bottom of the bottom plate (21); first buffer devices (23) are fixedly arranged at both ends of the top surface of the bottom plate (21) in a symmetrical manner, and each first buffer device (23) comprises a first buffer shell (231) and a first limiting column (233); a first spring (232) is fixedly arranged inside the first buffer shell (231), the first limiting column (233) is adapted to be inserted into the first buffer shell (231) and is provided with an abutting plate, the abutting plate is fixedly connected with the top of the first spring (232), and the bottom of the first spring (232) is fixedly connected with the inner wall of the bottom of the first buffer shell (231); the top of the first limiting column (233) is fixedly connected with a groove box (234), and a buffer block (235) matched with the groove box (234) is arranged inside the mounting cavity; an opening is arranged at the top of the groove box (234), and two groups of parallel first limiting columns (233) are arranged at the bottom of the groove box (234); the second buffer device (24) comprises a second buffer shell (241) mounted on the bottom plate (21), a second spring (242) mounted in the second buffer shell (241), a buffer piece mounted at the top of the second spring (242), a third spring (244) mounted at the top of the buffer piece, a fixed block (245) fixedly connected with the top of the third spring (244), and the fixed block (245) fixedly connected with the fixing seat (12); a notch portion is arranged at the top of the second buffer shell (241), and the notch portion is adapted to mount the buffer piece; the buffer piece comprises an upper fixed plate (246), a short connecting column (247), and a lower fixed plate (248), the top end of the short connecting column (247) is fixedly connected with the upper fixed plate (246), and the bottom of the short connecting column (247) is fixedly connected with the lower fixed plate (248); the short connecting column (247) is adapted to penetrate through the notch portion, and the sizes of the upper fixed plate (246) and the lower fixed plate (248) are greater than the size of the notch portion. ​ ​ The top of the upper fixed plate (246) is fixedly connected with the bottom of the third spring (244), and the bottom of the lower fixed plate (248) is fixedly connected with the top of the second spring (242); The third buffering device (25) comprises a permanent magnet block (251), a second limiting column (252), a fourth spring (253), a magnetic block (254), a rubber sleeve (255) and a rubber pad (256); The top surface of the bottom plate (21) is fixedly connected with the permanent magnet block (251), the upper portion of the permanent magnet block (251) is fixedly connected with the second limiting column (252), the outer portion of the second limiting column (252) is mounted with the fourth spring (253), and the top end of the second limiting column (252) is provided with the magnetic block (254) which is repulsive to the permanent magnet block (251); The outer portion of the magnetic block (254) is provided with the rubber sleeve (255), and the top end of the rubber sleeve (255) is fixedly connected with the rubber pad (256); The magnetic block (254) is mounted in the rubber sleeve (255) and is fixedly connected with the rubber pad (256); The inner portion of the rubber sleeve (255) is provided with the built-in ring (257) which is adapted to abut against the fourth spring (253); The fixed seat (12) comprises a clamping groove (121), a support plate part one (122), a support plate part two (123) and a bolt (124), the top surface of the fixed seat (12) is provided with the clamping groove (121) on both sides, the upper portion of the fixed seat (12) is extended and provided with the support plate part one (122) on both sides, the lower portion of the fixed seat (12) is mounted with the support plate part two (123) on both sides, and the support plate part two (123) is located at the lower end of the support plate part one (122); The surface of the support plate part two (123) is mounted with a plurality of groups of bolts (124) which are connected with the transverse numerical control feeding sliding table (1).

2. The damping structure of a horizontal machine tool for online repair according to claim 1, characterized in that: The bottom surface of the transverse numerical control feeding sliding table (1) is provided with a protrusion, and the clamping groove (121) is adapted to the protrusion on the bottom surface of the transverse numerical control feeding sliding table (1).

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