Machining center spindle structure capable of reducing vibration

Abstract

The utility model relates to the technical field of machining center spindles, and discloses a machining center spindle structure capable of reducing vibration, which comprises a spindle body, sleeve plates are arranged on two sides of the spindle body, six first mounting grooves are arranged on the sleeve plates, two positioning rods are arranged in the first mounting grooves, and the positioning rods are fixedly connected with the sleeve plates. A damping telescopic rod is arranged in the first mounting groove, two positioning sleeves are fixedly connected to the outer wall of the bottom end of the damping telescopic rod and arranged on the positioning rod in a sleeving mode, a circular ring is fixedly connected to the outer wall of the top end of a movable rod of the damping telescopic rod, holes matched with the positioning rod are formed in the circular ring, and a fixing base is fixedly connected to the top of the movable rod of the damping telescopic rod. A roller is installed on the fixing base, the outer wall of the roller is fixedly connected with a rubber abutting ring, and the damping telescopic rod is sleeved with a first spring. The service life of the rubber abutting ring can be guaranteed, the frequency of replacing the rubber abutting ring is reduced, and the influence of vibration on the main shaft body can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to processing center main shaft technical field especially relates to a processing center main shaft structure of reducing vibration. BACKGROUND

[0002] Through the retrieval, the patent of CN220445066U discloses machining center spindle damping device, including the spindle box of fixed installation in the end of machining center machine tool, the inside installation of spindle box has the motor, the output shaft fixed connection of motor has the shaft body, the outer surface of shaft body is equipped with the rotation connection of shaft sleeve, and the fixed structure is installed between shaft sleeve and shaft body, the outer surface one side of fixed structure is installed with the sleeve pipe, the inner part of sleeve pipe lateral wall is installed respectively with the first damping assembly and the second damping assembly that cooperate with shaft body.

[0003] The machining center spindle damping device in the above patent has the following disadvantages: the rubber block is slidably arranged on the shaft body, and the rubber may be overheated due to heat accumulation caused by friction, thereby affecting the physical properties, leading to changes in hardness and reduction in elasticity. Long-term friction may cause wear of the rubber material, reducing the damping effect and service life. In order to ensure the damping effect, the rubber block needs to be replaced frequently, which is very troublesome. The shaft body needs to be stopped during replacement, affecting the normal progress of the processing work. Therefore, a processing center main shaft structure for reducing vibration is needed to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model discloses a processing center main shaft structure for reducing vibration to solve the problems existing in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides a kind of machining center spindle structure of reducing vibration, including spindle body, both sides of the spindle body are provided with sleeve plate, six first installation grooves are opened in the sleeve plate, two positioning rods are provided in the first installation groove, the positioning rod is fixedly connected sleeve plate, damping telescopic rod is provided in the first installation groove, the bottom outer wall of the damping telescopic rod is fixedly connected with two positioning sleeves, the positioning sleeve is sleeved in positioning rod, the movable rod top outer wall of the damping telescopic rod is fixedly connected with annular, the hole that is compatible with positioning rod is opened in the annular, the movable rod top of the damping telescopic rod is fixedly connected with fixed seat, the fixed seat is installed with gyro wheel, the outer wall of the gyro wheel is fixedly connected with rubber resistance ring, the damping telescopic rod is sleeved with first spring, two the sleeve plate in each other close side is provided with arc plate, six circular grooves and six square grooves are opened in the arc plate, the circular groove is communicated with square groove, since the technical means that rubber resistance ring is rotated along with spindle body is used, so spindle rotates can be rotated with rubber resistance ring, effectively reduce the influence of friction on rubber resistance ring, simultaneously, when spindle body vibrates, the cooperation of rubber resistance ring, damping telescopic rod and first spring can effectively reduce the amplitude and time of spindle body vibration, effectively solve the heat accumulation caused by friction that rubber resistance block is slidably arranged on shaft body in the background art, rubber can be overheated, thereby affecting its physical properties, leading to hardness change, elasticity reduction, long time friction can lead to rubber material wear, reduce its damping effect and service life, in order to guarantee damping effect, it needs to replace rubber resistance block frequently, it is very troublesome to stop shaft body rotation when replacing, affect the normal progress of processing work, further realize the technical effect that the service life of rubber resistance ring is guaranteed, the frequency of replacing rubber resistance ring is reduced, the influence of vibration on spindle body can be reduced, by setting sleeve plate and arc plate, when sleeve plate moves close to arc plate, can make fixed seat pass through circular groove and square groove, so that annular is in circular groove, at this moment, damping assembly is between sleeve plate and arc plate, namely, damping assembly can be installed, the difficulty of installing and disassembling damping assembly can be effectively reduced.

[0007] As a further scheme of the utility model, the spindle body is sleeved with two bearing seats, the bearing seats are fixed on the inner wall of the spindle box, and the inner wall of the inner ring of the bearing on the bearing seat is fixedly connected with the outer wall of the spindle body.

[0008] As a further scheme of the utility model, the outer wall of the two arc plates is fixedly connected with a side plate, two slide rods are fixedly connected with the side plate on the side close to the sleeve plate, four slide grooves compatible with the slide rods are formed in the sleeve plate, and the slide rods are arranged in the slide grooves.

[0009] As a further scheme of the utility model, a second spring is arranged in the slide groove, the second spring is sleeved on the slide rod, and the slide rod is slidingly connected with the sleeve plate.

[0010] As a further scheme of the utility model, two sleeve plates are fixedly connected with circular pipes at the sides far from each other, the circular pipes are fixedly connected with screw nuts on the inner walls of the ends far from the sleeve plates, screw rods are arranged through the screw nuts, and the screw nuts are matched with the screw rods.

[0011] As a further scheme of the utility model, the screw rod is fixedly connected with a limiting rod at the side far from the sleeve plate, and the limiting rod is fixedly connected with a knob at the side far from the sleeve plate.

[0012] As a further scheme of the utility model, the sleeve plate is fixedly connected with guide pipes at both ends of the side, the guide pipes are slidably connected with guide rods on the inner walls, the guide rods are fixedly connected with the same fixed plate, the knob passes through the fixed plate, and the fixed plate is fixedly connected with the inner wall of the main shaft box.

[0013] The utility model discloses the beneficial effects are:

[0014] The utility model discloses: because adopted rubber resistance ring with the technical means of rotation of main shaft body, so main shaft rotation will be with rubber resistance ring rotation, effectively reduce the influence of friction to rubber resistance ring, simultaneously, when main shaft body vibration, the cooperation of rubber resistance ring, damping telescopic rod and first spring can effectively reduce the amplitude and time of main shaft body vibration, effectively solve the rubber resistance block sliding setting in the shaft body in the background art, the heat accumulation due to friction, the rubber can be overheated, thereby influence its physical property, lead to hardness change, elasticity reduces, long -term friction can lead to rubber material wear and tear, reduce its damping effect and service life, in order to guarantee the damping effect, need regularly frequently replace rubber resistance block, it is very troublesome, when replacing, also need to stop the rotation of shaft body, influence the normal progress of processing work's problem, further realize guarantee rubber resistance ring's service life, reduce the frequency of replacing rubber resistance ring, can reduce the influence of vibration to main shaft body's technical effect.

[0015] The utility model discloses: through setting sleeve plate and arc plate, when sleeve plate moves close to arc plate, can make fixed seat pass through round groove and square groove, make annular ring be in round groove, at this moment, damping assembly is just between sleeve plate and arc plate, can install good damping assembly, can effectively reduce the difficulty of installation and disassembly damping assembly. ACCURATE DRAWING

[0016] Figure 1 It is a kind of three-dimensional structure schematic diagram of machining center main shaft structure of reducing vibration that the utility model proposes;

[0017] Figure 2 It is a kind of three-dimensional structure schematic diagram of machining center main shaft structure of reducing vibration that the utility model proposes;

[0018] Figure 3 A partial structure schematic view of a machining center spindle structure reducing vibration is provided for the utility model;

[0019] Figure 4 A sleeve plate section expansion structure schematic view of a machining center spindle structure reducing vibration is provided for the utility model;

[0020] Figure 5 A sleeve plate section structure schematic view of a machining center spindle structure reducing vibration is provided for the utility model;

[0021] Figure 6 A fixed seat expansion structure schematic view of a machining center spindle structure reducing vibration is provided for the utility model.

[0022] In the drawing: 1, main shaft body; 2, sleeve plate; 3, first installation groove; 4, positioning rod; 5, damping telescopic rod; 6, positioning sleeve; 7, circular ring; 8, fixed seat; 9, roller; 10, rubber resistance ring; 11, first spring; 12, arc plate; 13, circular groove; 14, square groove; 15, bearing seat; 16, side plate; 17, sliding groove; 18, sliding rod; 19, second spring; 20, circular tube; 21, screw nut; 22, screw rod; 23, limiting rod; 24, knob; 25, fixed plate; 26, guide rod; 27, guide tube. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0024] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0025] Reference Figure 1 - Figure 6The utility model provides a machining center main shaft structure of reducing vibration, including main shaft body 1, both sides of main shaft body 1 are provided with sleeve plate 2, six first installation slot 3 are seted up on sleeve plate 2, two locating rods 4 are seted up in first installation slot 3, and locating rod 4 is fixedly connected sleeve plate 2, and damping telescopic link 5 is seted up in first installation slot 3, the bottom outer wall of damping telescopic link 5 is fixedly connected with two locating sleeve 6, and locating sleeve 6 is seted up in locating rod 4, and the movable rod top outer wall of damping telescopic link 5 is fixedly connected with annular 7, and annular 7 is seted up with the hole of locating rod 4, and the movable rod top of damping telescopic link 5 is fixedly connected with fixed seat 8, and fixed seat 8 is installed with gyro wheel 9, and the outer wall of gyro wheel 9 is fixedly connected with rubber resistance ring 10, and damping telescopic link 5 is seted up with first spring 11, and two sleeve plates 2 are provided with arc plate 12 on the side of each other close, and six round grooves 13 and six square grooves 14 are seted up on arc plate 12, and round groove 13 is communicated with square groove 14, because the technical means that rubber resistance ring is rotated along with main shaft body is adopted, so main shaft rotates and will take rubber resistance ring and rotate, effectively reduce the influence of friction to rubber resistance ring, and simultaneously, when main shaft body vibrates, the cooperation of rubber resistance ring, damping telescopic link and first spring can effectively reduce the amplitude and time of main shaft body vibration, effectively solve the problem that rubber resistance block is set up on shaft body and is slid in the background art, and the heat accumulation due to friction, and the rubber can be overheated, thereby affecting its physical properties, leading to hardness change, elasticity reduction, long time friction can lead to rubber material wear and tear, reduce its damping effect and service life, in order to guarantee the damping effect, need to replace rubber resistance block frequently, it is very troublesome, and when replacing, need to stop shaft body rotation, affect the normal progress of processing work, further realize the technical effect that the service life of rubber resistance ring is guaranteed, the frequency of replacing rubber resistance ring is reduced, and the influence of vibration on main shaft body can be reduced, by setting sleeve plate and arc plate, when sleeve plate moves close to arc plate, can make fixed seat pass through round groove and square groove, make annular be in round groove, at this moment, damping assembly is between sleeve plate and arc plate, namely can install damping assembly, can effectively reduce the difficulty of installing and disassembling damping assembly.

[0026] In the embodiment, the main shaft body 1 is sleeved with two bearing seats 15, the inner wall of the inner ring of the bearing on the bearing seat 15 is fixedly connected with the outer wall of the main shaft body 1.

[0027] In the embodiment, the outer wall of the two arc plates 12 is fixedly connected with the side plate 16, the side plate 16 is fixedly connected with two slide rods 18 on the side close to the sleeve plate 2, the sleeve plate 2 is provided with four slide grooves 17 matched with the slide rods 18, and the slide rods 18 are arranged in the slide grooves 17.

[0028] In the embodiment, the second spring 19 is arranged in the slide groove 17, the second spring 19 is sleeved with the slide rod 18, and the slide rod 18 is slidingly connected with the sleeve plate 2.

[0029] In the embodiment, the two sleeve plates 2 are fixedly connected with circular tubes 20 at the sides away from each other, the inner wall of the end of the circular tube 20 away from the sleeve plate 2 is fixedly connected with a screw nut 21, the screw nut 21 is penetrated by a screw rod 22, and the screw nut 21 is matched with the screw rod 22.

[0030] In the embodiment, the screw rod 22 is fixedly connected with a limiting rod 23 at the side away from the sleeve plate 2, and the limiting rod 23 is fixedly connected with a knob 24 at the side away from the sleeve plate 2.

[0031] In the embodiment, the sleeve plate 2 is fixedly connected with guide tubes 27 at the two ends of the side, the inner wall of the guide tube 27 is slidably connected with guide rods 26, the two guide rods 26 are fixedly connected with a same fixed plate 25, the knob 24 penetrates the fixed plate 25, and the fixed plate 25 is fixedly connected with the inner wall of the main shaft box.

[0032] Working principle: when the device is assembled, the rubber ring 10 will be attached to the outer wall of the main shaft body 1, when the main shaft body 1 rotates, the main shaft body 1 will rotate with the rubber ring 10, the rubber ring 10 will rotate with the roller 9 on the fixed seat 8, the rubber ring 10 has good elasticity and damping characteristics, can absorb and dissipate vibration energy, so as to reduce the vibration amplitude of the main shaft in the rotation process, in the machining process, the cutting action between the cutter and the workpiece will produce instantaneous impact force, the rubber ring 10 can reduce the impact of these impact forces on the main shaft, so as to reduce the vibration, and when the main shaft body 1 is impacted and vibrated to move the rubber ring 10, the rubber ring 10 will drive the roller 9 to move, the roller 9 will drive the fixed seat 8 to move, the fixed seat 8 will make the damping telescopic rod 5 contract, the contraction of the damping telescopic rod 5 will make the circular ring 7 move, the circular ring 7 will make the first spring 11 contract, through the cooperation of the damping telescopic rod 5 and the first spring 11, the first spring 11 is responsible for absorbing and releasing energy, reducing impact, the damping telescopic rod 5 dissipates energy through damping force, slows down the amplitude and time of the main shaft body 1 vibration, so as to reduce the influence of vibration on the main shaft body 1, when assembling the device, put the damping telescopic rod 5 into the first mounting groove 3, put the positioning sleeve 6 on the positioning rod 4 for positioning, rotate the knob 24, the knob 24 will drive the limiting rod 23 to rotate, the limiting rod 23 will drive the nut 21 to move, the nut 21 will drive the circular tube 20 to move, the circular tube 20 will drive the sleeve plate 2 to move, the sleeve plate 2 will drive the guide pipe 27 to move along the guide rod 26, the movement of the sleeve plate 2 will drive the second spring 19 to move, the second spring 19 will drive the slide rod 18 to move, the slide rod 18 will drive the side plate 16 to move, the side plate 16 will drive the arc plate 12 to move until the two arc plates 12 contact, after the two arc plates 12 contact, continue to rotate the knob 24 to make the sleeve plate 2 continue to move until the damping telescopic rod 5 passes through the circular groove 13 and the square groove 14, at this time the circular ring 7 is in the circular groove 13, the circular ring 7 cannot continue to move, at this time the rubber ring 10 will contact the main shaft body 1, when the rubber ring 10 contacts the main shaft body 1, the sleeve plate 2 will also contact the side plate 16, the second spring 19 is in the contraction state, at this time the damping telescopic rod 5, the circular ring 7 is between the sleeve plate 2 and the arc plate 12, that is, the device is assembled, after a period of use, the damping component needs to be replaced, reverse the knob 24 to make the two sleeve plates 2 move away from each other, the second spring 19 will gradually stretch, which can gradually increase the distance between the arc plate 12 and the sleeve plate 2, so that the positioning sleeve 6 can be removed from the positioning rod 4, the damping telescopic rod 5 is removed, the damping telescopic rod 5, the first spring 11 and the rubber ring 10 are replaced, then the same steps are followed to assemble again for normal use.

[0033] For purposes of the description hereinafter, spatial

[0034] It is also to be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0035] The preferred embodiments of the present application have been described above with the purpose of enabling not only the best modes of practicing the application known to the inventors at this time, but also of enabling others skilled in the art to utilize the application in various embodiments and with various modifications as are suited to the particular use contemplated. Therefore, the above description is intended to be illustrative, but not restrictive, of the scope of the present application. All patents and patent applications mentioned herein are incorporated by reference in their entirety.

Claims

1. A vibration-reducing machining center spindle structure, comprising a spindle body (1), characterized in that, Both sides of the main shaft body (1) are provided with sleeve plates (2). Six first mounting slots (3) are opened on the sleeve plates (2). Two positioning rods (4) are provided in the first mounting slots (3). The positioning rods (4) are fixedly connected to the sleeve plates (2). A damping telescopic rod (5) is provided in the first mounting slots (3). Two positioning sleeves (6) are fixedly connected to the bottom outer wall of the damping telescopic rod (5). The positioning sleeves (6) are sleeved on the positioning rods (4). A ring (7) is fixedly connected to the outer wall of the movable rod of the damping telescopic rod (5). 7) A hole adapted to the positioning rod (4) is provided on the upper part. A fixed seat (8) is fixedly connected to the top of the movable rod of the damping telescopic rod (5). A roller (9) is installed on the fixed seat (8). A rubber abutment (10) is fixedly connected to the outer wall of the roller (9). A first spring (11) is sleeved on the damping telescopic rod (5). An arc plate (12) is provided on the side of the two sleeve plates (2) that are close to each other. Six circular grooves (13) and six square grooves (14) are provided on the arc plate (12). The circular grooves (13) and the square grooves (14) are connected.

2. The vibration-reducing machining center spindle structure according to claim 1, characterized in that, The main spindle body (1) is fitted with two bearing seats (15), the bearing seats (15) are fixed to the inner wall of the spindle box, and the inner wall of the inner ring of the bearing on the bearing seat (15) is fixedly connected to the outer wall of the main spindle body (1).

3. The vibration-reducing machining center spindle structure according to claim 1, characterized in that, The outer walls of the two arc-shaped plates (12) are fixedly connected with side plates (16). The side plates (16) are fixedly connected with two sliding rods (18) on the side near the sleeve plate (2). The sleeve plate (2) has four sliding grooves (17) that are adapted to the sliding rods (18). The sliding rods (18) are set in the sliding grooves (17).

4. The vibration-reducing machining center spindle structure according to claim 3, characterized in that, A second spring (19) is provided in the groove (17), and the second spring (19) is sleeved on the slide rod (18). The slide rod (18) is slidably connected to the sleeve plate (2).

5. The vibration-reducing machining center spindle structure according to claim 4, characterized in that, Both sleeves (2) are fixedly connected to round tubes (20) on opposite sides. A screw nut (21) is fixedly connected to the inner wall of the round tube (20) at the end away from the sleeve (2). A screw (22) is threaded through the screw nut (21), and the screw nut (21) and the screw (22) are compatible.

6. The vibration-reducing machining center spindle structure according to claim 5, characterized in that, The lead screw (22) is fixedly connected to a limiting rod (23) on the side away from the sleeve (2), and the limiting rod (23) is fixedly connected to a knob (24) on the side away from the sleeve (2).

7. The vibration-reducing machining center spindle structure according to claim 6, characterized in that, Guide tubes (27) are fixedly connected to both ends of one side of the sleeve (2). Guide rods (26) are slidably connected to the inner wall of the guide tubes (27). The two guide rods (26) are fixedly connected to the same fixing plate (25). The knob (24) passes through the fixing plate (25). The fixing plate (25) is fixedly connected to the inner wall of the spindle box.

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