CN213981798U

CN213981798U - Take shockproof structure's quick-witted case for numerical control machining center

Info

Publication number: CN213981798U
Application number: CN202022291581.2U
Authority: CN
Inventors: 沈剑峰; 丘梅霞; 卓衍斌; 陈志威; 谢一香
Original assignee: Zhongshan Washeng Precision Metal Products Technology Co ltd
Current assignee: Zhongshan Washeng Precision Metal Products Technology Co ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-08-17
Anticipated expiration: 2030-10-15

Abstract

The utility model relates to a case with a shockproof structure for a numerical control machining center, belonging to the technical field of damping of the numerical control machining center; the case includes: the damping device comprises a machine box shell, a spring damper I, an operation panel, an electronic controller, a spring damper II and an electromagnetic hydraulic damper, wherein the spring damper I for damping the machine tool body in the horizontal direction is installed in the machine box shell; the utility model discloses an adopt and install spring damper I, spring damper II and electromagnetism hydraulic damper in the quick-witted case casing, realized carrying out the purpose that the shock attenuation was adjusted on level and vertical direction to the numerical control machining center, electromagnetism hydraulic damper can carry out real-time infinitely variable control to the damping force under electronic controller's control, and the reliability is high, the shock attenuation is effectual, long service life, application scope are wide.

Description

Take shockproof structure's quick-witted case for numerical control machining center

Technical Field

The utility model relates to a take shockproof structure's quick-witted case for numerical control machining center belongs to numerical control machining center shock attenuation technical field.

Background

The numerical control machining center is a numerical control machine tool integrating turning, milling, boring, drilling, hinging and other functions, consists of mechanical equipment and a numerical control system, is a high-efficiency automatic machine tool suitable for machining complex parts, and is one of numerical control machines with the highest yield and the most extensive application in the world. The numerical control machining center has the advantages that the comprehensive machining capacity is high, a workpiece can finish more machining contents after being clamped once, the machining precision is high, but vibration is easy to generate during the operation of a machine tool, and therefore the improvement of the shockproof capacity of the numerical control machining center plays a vital role in the machining precision, quality and efficiency of the workpiece.

The traditional damping structure is mostly a pure mechanical spring damper arranged on a base, and the structure has the limitation that the vibration in the vertical direction can be adjusted only, and the vibration amplitude under different loads is different, so that the damping effect is unstable; on the other hand, after the damping device is used for a long time, the spring elasticity coefficient is easy to gradually decrease, so that the damping effect is influenced, and the vibration of the machine tool becomes obvious; and the damping of the purely mechanical spring shock absorber is not adjustable, and the damping force can not be adjusted in real time according to the vibration condition of the machine tool during operation, so the problems of poor shockproof effect, short service life, limited application range and the like exist.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problem that exists among the background art, the utility model provides a take shockproof structure's quick-witted case for numerical control machining center through adopting installation spring damper I, spring damper II and electromagnetism hydraulic shock absorber in quick-witted case casing, realized carrying out the purpose that the shock attenuation was adjusted to numerical control machining center on level and vertical direction, electromagnetism hydraulic shock absorber can carry out real-time stepless regulation to the damping force under electronic controller's control, the reliability is high, it is effectual to shock attenuation, long service life, application scope is wide.

In order to solve the above problem, the utility model discloses a following technical scheme realizes:

the machine case for the numerical control machining center of taking shock-proof structure includes machine case casing, spring damper I, operating panel, electronic controller, spring damper II, electromagnetism hydraulic damper, install in the machine case casing and be used for the damped spring damper I to lathe body horizontal direction, install operating panel and electronic controller on the machine case casing, install spring damper II and electromagnetism hydraulic damper between the internal bottom of machine case casing and the lathe bed body.

Preferably, spring damper I includes ball, ball seat, shock attenuation pole I, supports board I, sleeve, damping spring, the ball is installed in the inslot on the ball seat, I both ends of shock attenuation pole are connected with ball seat and support board I respectively, support board I and install inside the sleeve, and support board I and install the damping spring in the sleeve and be connected.

Preferably, spring damper II includes connecting plate II, shock absorber pole II, outer sleeve, inner skleeve, supports board II, inner spring, outer spring, connecting plate II with support board II and be connected through shock absorber pole II, install the inner skleeve in the outer sleeve, support board II and install inside the inner skleeve, and outer sleeve and inner skleeve are inside to be installed respectively and carry out absorbing outer spring and inner spring to connecting plate II and support board II.

Preferably, installation pressure measurement device between the internal bottom of machine case casing and the lathe bed body, pressure measurement device includes pressure sensor, slider, sleeve, buffer spring, the interior bottom of sleeve installation at the machine case casing, sliding connection has the slider in the sleeve, and installs the buffer spring who plays the cushioning effect to the slider in the sleeve, installs the pressure sensor with the contact of lathe bed body on the slider, and pressure sensor links to each other with electronic controller.

The utility model has the advantages that:

the utility model discloses an adopt and install spring damper I, spring damper II and electromagnetism hydraulic damper in the quick-witted case casing, realized carrying out the purpose that the shock attenuation was adjusted on level and vertical direction to the numerical control machining center, electromagnetism hydraulic damper can carry out real-time infinitely variable control to the damping force under electronic controller's control, and the reliability is high, the shock attenuation is effectual, long service life, application scope are wide.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a spring damper I of the present invention;

FIG. 3 is a schematic view of a spring damper II of the present invention;

FIG. 4 is a schematic view of the electromagnetic hydraulic shock absorber of the present invention;

FIG. 5 is a schematic diagram of the distribution of the magnetic particles in the electromagnetic liquid according to the present invention when they are not magnetized;

FIG. 6 is a schematic diagram showing the distribution of magnetized magnetic particles in the electromagnetic liquid according to the present invention;

fig. 7 is a schematic view of the pressure detecting device of the present invention.

Description of reference numerals: 1-machine tool bed, 2-machine case shell, 3-spring damper I, 4-operation panel, 5-electronic controller, 6-spring damper II, 7-electromagnetic hydraulic damper, 8-pressure detection device, 9-ball, 10-ball seat, 11-damping rod I, 12-abutting plate I, 13-first sleeve, 14-damping spring, 15-connecting plate, 16-damping rod II, 17-outer sleeve, 18-inner sleeve, 19-abutting plate II, 20-inner spring, 21-outer spring, 22-cylinder, 23-oil cylinder, 24-piston, 25-piston rod, 26-connecting plate, 27-external conductor, 28-electromagnetic liquid, 29-magnetic particle, 30-electromagnetic piston, 31-electromagnetic liquid through hole, 32-coil, 33-electromagnetic absorber base, 34-pressure sensor, 35-slide block, 36-second sleeve, 37-buffer spring.

Detailed Description

In order to make the objects, technical solutions, objectives and effects of the present invention obvious and understandable, preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

It should be noted that, in the description of the present invention, unless explicitly specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, i.e., they may be either fixedly connected or detachably connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements.

The utility model discloses in, as shown in fig. 2, among the spring damper I ball 9 installs the inslot on ball seat 10, shock attenuation pole I11 both ends are connected with ball seat 10 and to board I12 respectively, it installs inside first sleeve 13 to support board I12, and supports board I12 and be connected with the damping spring 14 of installing in first sleeve 13. Because the lathe is except can producing the ascending vibration of vertical direction when the operation, also can produce the ascending slight vibration of horizontal direction, consequently the utility model discloses 4 vertical faces are installation spring damper I in quick-witted case casing to reach the absorbing purpose in the horizontal direction, wherein on the face that the case lid was opened, only at the latter half installation two spring damper I of machine case casing. The adoption sets the mode to the ball at spring damper I and lathe bed body contact position, the lathe vibration causes the condition of damping spring luffing motion when can avoiding bumper damper and lathe bed body direct contact or fixed connection, the ball becomes rolling friction with the sliding friction of bumper damper and lathe side, damping spring luffing motion's range has effectively been reduced, and simultaneously, and when the lathe vibrates on the horizontal direction, the lathe side produces the radial force of horizontal direction to the ball and makes through the shock attenuation pole to support board reciprocating motion in the sleeve, both reached the absorbing purpose on the horizontal direction, the life of bumper damper has also been improved.

The utility model discloses in, as shown in fig. 3, connecting plate II 15 is connected with the lathe bed 1 in spring damper II 6, damper II 16 both ends are connected with connecting plate II 15 and to board II 19 respectively, it is connected with the inner spring 20 of installing in inner skleeve 18 to support board II 19, outer spring 21 installs between outer sleeve 17 and inner skleeve 18, and both ends are connected with connecting plate 15 respectively and the bottom of outer sleeve 17 is connected. Because lathe self is heavier, and the lathe still can produce great pressure because of the vibration when the operation, consequently bottom installation spring damper II in the casing of the case can play the effect of the pressure that the vibration produced when sharing some lathe dead weight and lathe operation on the one hand, has improved the life of electromagnetism hydraulic damper, and on the other hand can play supplementary cushioning effect, has improved the utility model discloses a shock attenuation effect.

The utility model discloses in, as shown in fig. 4-6, 8 upper ends of electromagnetism hydraulic shock absorber are connected with the lathe bed body 1 through connecting plate 26, and the lower extreme passes through base 33 and is connected with the bottom in the case casing 2, and the fluid that adopts is the electromagnetism liquid that contains magnetic particle 29 in cylinder body 22 in hydro-cylinder 23, installs piston 24 and electromagnetism piston 30 on the piston rod 25, is equipped with coil 32 in the electromagnetism piston 30 and is provided with 4 electromagnetism liquid clearing holes 31, and external conductor 27 is connected coil 32 and electronic controller 5 through the hollow part of piston rod 25. When the coil 32 in the electromagnetic piston 30 is not energized, the magnetic particles 29 in the electromagnetic liquid 28 are arranged uniformly and irregularly as shown in fig. 5, and the damping force generated by the electromagnetic liquid 28 is the same as that of the common oil liquid; when the coil 32 in the electromagnetic piston 30 is energized, the energized coil generates a magnetic field, so that the magnetic particles 29 are aligned in a direction perpendicular to the piston moving direction as shown in fig. 6, and the oil is blocked from flowing in the electromagnetic liquid passing hole 31, thereby achieving the effect of improving the damping force. The larger the current input into the coil 32 is, the larger the intensity of the magnetic field is, the larger the generated damping force is, that is, the damping force of the electromagnetic liquid 28 changes with the change of the intensity of the input current, so that the damping force can be adjusted in real time according to the change of the pressure generated during the operation of the machine tool, thereby realizing stepless damping and having good damping effect.

The utility model discloses in, as shown in fig. 7, second sleeve 36 installs the interior bottom at quick-witted case casing 2 among the pressure measurement device 8, installs the buffer spring 37 that plays the cushioning effect to slider 35 in the second sleeve 36, installs pressure sensor 34 on the slider 35 on buffer spring 37, and pressure sensor 34's top contacts with lathe bed 1 bottom to link to each other with electronic controller 5 through the wire. Because the lathe bed body 1 is heavier, and the lathe still can produce great pressure because of the vibration when the operation, consequently install buffer spring 37 in pressure measurement device's second sleeve 36, also can effectively avoid the effect that the sensor pressurized damages under the cushioning effect when guaranteeing that pressure sensor 34 can normally detect pressure. The pressure sensor 34 uses a piezoelectric pressure sensor, and can transmit the detected pressure change generated during the operation of the machine tool to the electronic controller 5 in the form of an electric signal, and the electronic controller 5 controls the current input into the coil 32 according to the real-time data detected by the piezoelectric pressure sensor, so as to change the damping force of the electromagnetic liquid 28 under different pressures, thereby accurately controlling the damping force of the electromagnetic hydraulic damper 7 and achieving the real-time stepless damping effect.

Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a take shockproof structure's quick-witted case for numerical control machining center which characterized in that: the machine case for the numerical control machining center of taking shock-proof structure includes machine case casing (2), spring shock absorber I (3), operating panel (4), electronic controller (5), spring shock absorber II (6), electromagnetism hydraulic shock absorber (7), install in machine case casing (2) and be used for to the absorbing spring shock absorber I (3) of lathe body horizontal direction, install operating panel (4) and electronic controller (5) on machine case casing (2), install spring shock absorber II (6) and electromagnetism hydraulic shock absorber (7) between bottom and the lathe bed body (1) in machine case casing (2).

2. The machine box with the shockproof structure for the numerical control machining center according to claim 1 is characterized in that: spring damper I (3) include ball (9), ball seat (10), shock attenuation pole I (11), support board I (12), first sleeve (13), damping spring (14), ball (9) are installed in the inslot on ball seat (10), shock attenuation pole I (11) both ends are connected with ball seat (10) and support board I (12) respectively, support board I (12) and install inside first sleeve (13), and support board I (12) and be connected with damping spring (14) of installing in first sleeve (13).

3. The machine box with the shockproof structure for the numerical control machining center according to claim 1 is characterized in that: spring damper II (6) include connecting plate II (15), damper rod II (16), outer sleeve (17), inner skleeve (18), support board II (19), inner spring (20), outer spring (21), connecting plate II (15) with support board II (19) and be connected through damper rod II (16), install inner skleeve (18) in outer sleeve (17), support board II (19) and install inside inner skleeve (18), and outer sleeve (17) and inner skleeve (18) inside install respectively carry out absorbing outer spring (21) and inner spring (20) to connecting plate II (15) and support board II (19).

4. The machine box with the shockproof structure for the numerical control machining center according to claim 1 is characterized in that: install pressure measurement device (8) between bottom and the lathe bed body (1) in case body (2), pressure measurement device (8) include pressure sensor (34), slider (35), second sleeve (36), buffer spring (37), the interior bottom of case body (2) is installed in second sleeve (36), and sliding connection has slider (35) in second sleeve (36), and installs buffer spring (37) that play cushioning effect to slider (35) in second sleeve (36), installs pressure sensor (34) with the contact of the lathe bed body (1) on slider (35), and pressure sensor (34) link to each other with electronic controller (5).