CN218964820U - Vibration reduction structure for machine tool and machine tool - Google Patents

Abstract

The utility model discloses a vibration damping structure for a machine tool and the machine tool, wherein the vibration damping structure includes: a beam and a supporting frame, the beam includes: a side shell and an end cover, the side shell adopts a hollow structure, and the end cover is fastened on the At both ends of the side shell, the supporting frame is arranged inside the beam. The beam structure adopted in the utility model is hollow, which greatly reduces the quality of the beam, and the supporting frame improves the strength and deformation resistance of the beam. Therefore, according to the kinetic energy formula, it can be known that the greater the mass of an object with the same moving speed, the greater the quality of the beam. The greater the kinetic energy, the greater the damage to the machine tool, so the utility model reduces the damage of the beam vibration to the machine tool by reducing the mass of the beam; at the same time, the hollow structure can also perform vibration absorption to reduce the further transmission of beam vibration , reducing the overall amplitude of the machine tool, avoiding the vibration of the machine tools caused by the use of the spring damping structure, reducing the machining accuracy of the machine tool, and resulting in a low product processing yield.

Description

A vibration-damping structure for a machine tool and the machine tool

technical field

The utility model relates to the technical field of machinery, in particular to a vibration-damping structure for a machine tool and the machine tool.

Background technique

The utility model patent with application number 2021233930882 discloses a high-strength shock-absorbing CNC machine tool sheet metal shell, as shown in Figure 1, which includes: an upper shell 1 and a lower shell 2, which are located on the front side of the upper shell 1 There is a protective component that can move laterally and has a protective effect. The protective component is composed of a protective cover 3 fixedly connected to the upper casing 1 and a movable door 4 that can move laterally. The observation port 5 is provided with a shape structure, and a shock-absorbing structure with a shock-absorbing and buffering effect is arranged between the upper casing 1 and the lower casing 2. 1 is integrally formed with an installation shell for the control panel of the CNC machine tool, and an electric control cabinet 6 is located on the rear side of the upper shell 1, and the upper shell 1 and the lower shell 2 are integrally formed and processed, and are located on the upper shell 1 A shock absorbing structure is arranged between the lower shell 2 and the shock absorbing structure is composed of several guide columns 7 arranged on the top of the lower shell 2 and shock absorbing springs 8 sleeved on several guide columns 7, and several The guide columns 7 are sequentially distributed on the top of the upper casing 1 at intervals.

The damping structure adopted by 2021233930882 is a guide column and a damping spring. This damping structure cannot be applied to the tool and its carrier, otherwise it will cause the machine tool to vibrate, reduce the machining accuracy of the machine tool, and result in a low product processing yield. .

The utility model patent with the application number 2019213845644 discloses a connection structure of beams and columns for machine tools, as shown in Figure 2, which includes: a beam 101, a groove 201 and a collection box 301, and the outer wall of the beam 101 is uniformly provided with a first fixed hole 104, two rubber pads 106 are bonded to both sides of the bottom of the beam 101, the rubber pads 106 can be used for shock absorption of the connection structure, and the bottom of the two rubber pads 106 are bonded with the first column 102 and the second column in turn 103, the current situation of the first column 102 and the second column 103 is different, which is convenient for connecting and fixing various columns and beams 101. The first column 102 and the second column 103 are uniformly provided with second fixing holes 105. In a fixing hole 104, bolts and second fixing holes 105 are threaded and fixed, so that the beam 101, the first column 102 and the second column 103 are integrally fixedly connected, and the rubber pad 106, the first column 102 and the second column are The top of 103 is evenly provided with a groove 201, and the limit round rod 206 is embedded in the groove 201. The outer wall of the limit rod 206 is slidingly sleeved with two fixed collars 204, and the limit round rod 206 acts as a fixed sleeve. The ring 204 supports the function, and a return spring 205 is welded between the two fixed collars 204, and the return spring 205 can play the role of shock absorption for the connection structure again.

2019213845644 discloses that the beam-column connection structure for machine tools is provided with two layers of shock absorption, which are rubber pads and return springs respectively, aiming to avoid damage to the contact surface between the beam and the column and the fixing bolts due to the lack of a shock-absorbing structure, thereby improving The practicability of the beam-column connection structure; but obviously, the shock-absorbing structure will also cause the vibration of the machine tools, reduce the machining accuracy of the machine tool, and result in a low product processing yield.

It can be seen that the existing multi-table structure of the machine tool used for processing workpieces of the same type still needs to be improved and developed.

Utility model content

In view of the above-mentioned deficiencies in the prior art, the purpose of this utility model is to provide a vibration-damping structure and a machine tool for machine tools, aiming to solve the problem that the vibration-damping structure in the prior art will cause the machine tools to vibrate and reduce the machining accuracy of the machine tool. Lead to the problem of low product processing yield.

The technical scheme of the utility model is as follows:

A vibration damping structure for a machine tool, comprising: a beam and a supporting frame, the beam includes: a side shell and an end cover, the side shell adopts a hollow structure, and the end cover is fastened to the side shell The two ends of the support frame are arranged inside the beam.

The effect of the above scheme is that the beam structure adopted by the utility model is hollow, which greatly reduces the quality of the beam compared with the solid structure, and the supporting frame can improve the strength and deformation resistance of the beam, so according to the kinetic energy formula It can be seen that for objects with the same moving speed, the greater the mass, the greater the kinetic energy and the greater the damage to the machine tool. Therefore, the utility model reduces the damage of the beam vibration to the machine tool by reducing the mass of the beam; at the same time, the hollow The structure also absorbs vibration, reduces the further transmission of beam vibration, reduces the overall vibration amplitude of the machine tool, avoids the vibration of the machine tool tool caused by the use of spring shock absorbing structure, reduces the machining accuracy of the machine tool, and leads to low product processing yield. question.

In a further preferred solution, the vibration damping structure for a machine tool further includes: a reinforcing rib, the reinforcing rib is provided with a first insertion protrusion and a second insertion protrusion; The insertion slot, the first insertion protrusion and the second insertion protrusion are respectively inserted into the insertion slots on two different sides of the side shell.

The effect of the above scheme is that: since the first insertion protrusion and the second insertion protrusion are respectively inserted into the insertion grooves on two different sides of the side housing, the matching structure between the insertion protrusion and the insertion groove improves on the one hand. The strength at the corner of the side shell, on the other hand, improves the connection strength between the two different sides of the side shell; if the beam needs to be moved under the drive of the three-axis transfer mechanism, the ribs can effectively improve the strength of each component of the beam. The consistency of movement ensures the integrity of the beam.

In a further preferred solution, the reinforcing rib is provided with a first threaded hole, and the end cap is provided with a second threaded hole, and the end cap can be connected through the first threaded hole, the second threaded hole and the threaded connector. Disassemble the connections together.

The effect of the above scheme is that the reinforcing ribs not only play a supporting role at the corner of the side shell, but also connect the end cover and the side shell (according to the number of side plates of the side shell, it may also include different side plates of the side shell) As a whole, the overall strength of the beam is obviously improved; and when the beam needs to be moved under the drive of the three-axis transfer mechanism, the connection relationship between the rib and the end cover can further improve the movement consistency of each component of the beam, and significantly improve the beam. of integrity.

In a further preferred solution, the supporting framework includes: a transverse framework and a longitudinal framework, the two ends of the transverse framework are respectively inserted and connected to the front and rear sides of the beam, and the two ends of the longitudinal framework are respectively inserted and connected to the The upper and lower sides of the beam.

The effect of the above scheme is that the longitudinal frame can increase the strength between the upper and lower sides of the beam, and the transverse frame can increase the strength between the front and rear sides of the beam, and since the longitudinal frame and the transverse frame must cross, the overall strength of the beam will be reduced. is greatly improved; and due to the existence of the supporting frame, the integrity of the beam is bound to be further improved, so the supporting frame will further improve the movement consistency of each component when the beam moves.

In a further preferred solution, the supporting frame further includes: a reinforcing frame, the reinforcing frame is perpendicular to the longitudinal frame and the transverse frame and parallel to the end cover.

The effect of the above scheme is: the setting of the reinforcing frame further strengthens the strength of the beam, and since it intersects with the longitudinal frame and the transverse frame, the overall strength of the beam and the movement consistency of each component will be greatly improved when moving .

In a further preferred solution, the longitudinal frame, the transverse frame and the reinforcing frame are all provided with shock-absorbing holes.

The effect of the above scheme is that: on the one hand, the damping holes can reduce the weight of the supporting frame, and on the other hand, they can absorb the vibration transmitted by the beam, so that the longitudinal frame, the transverse frame and the reinforcing frame can improve the performance of the beam while improving the performance of the entire shock-absorbing structure. shock absorbing capacity.

In a further preferred solution, the beam is a moving beam, which is used to drive the X-axis transfer mechanism and the Z-axis transfer mechanism to move under the drive of the Y-axis transfer mechanism; the Z-axis transfer mechanism is provided with multiple, A plurality of the Z-axis transfer mechanisms are distributed on the front and back sides of the beam, and at least two Z-axis transfer mechanisms located on the same side are connected through a connecting frame to be driven by the same X-axis transfer mechanism.

The effect of the above scheme is that the moving beam structure driven by the Y-axis transfer mechanism and the multi-Z-axis transfer mechanism suitable for multi-stations can improve the machining efficiency of the machine tool while reducing the production cost of the workpiece, while the ribs and/or The supporting frame ensures the consistency of movement of each component when the beam moves, thereby improving the consistency and yield of workpieces on each workbench.

In a further preferred solution, the connecting frame includes: a hollow frame and at least one longitudinal support plate, the longitudinal support plate adopts a hollow structure; a connecting groove is opened on the side of the hollow frame facing the longitudinal support plate, and the A connection protrusion is provided on the side of the longitudinal support plate facing the hollow frame, and the connection groove is adapted to the connection protrusion.

The effect of the above scheme is that both the hollow frame and the longitudinal support plate adopt a hollow structure with a small mass. While ensuring that the Z-axis transfer mechanism is connected together, the vibration will not be large due to the large mass, but will be caused by the hollow structure. The small mass and shock-absorbing characteristics of the structure reduce the vibration force transmitted by the Z-axis transfer mechanism and the beam, thereby improving the shock resistance of the machine tool; at the same time, the cooperation between the connecting groove and the connecting protrusion will form a tenon-tenon structure, making the The frame and the longitudinal support plate are closely combined to ensure the overall strength of the connecting frame.

In a further preferred solution, the side housing includes: at least two side plates, the first side of the side plates is provided with a first splicing protrusion and a first splicing groove, and the second side is provided with a second splicing protrusion and the second splicing groove, the first splicing protrusion and the first splicing groove are respectively used to fit the second splicing groove and the second splicing protrusion of the adjacent side plate; both ends of the side plate are provided with the first Three splicing protrusions and a third splicing groove, the end cover is provided with a fourth splicing protrusion and a fourth splicing groove along the edge, and the fourth splicing protrusion and the fourth splicing groove are respectively used to adapt to the The third splicing groove and the third splicing protrusion; the adjacent side plates and the side plates and the end cover are welded together after being spliced.

The effect of the above scheme is: using screws to connect, the screws will gradually loosen due to the absorption and digestion vibration of the side plate, and it is easy to cause processing accidents due to the screw falling off. Well-positioned bedding, welding reinforces the spliced joints, and improves the firmness of the welding through the continuous interfitting splicing structure, which greatly improves the connection stability of the side panels in the side shell and the splicing and welding. The integrity of the side shell; and the support frame is stably limited in the beam, ensuring that the position of the support frame will not change. In turn, the support frame that is stably limited supports the beam firmly; On the basis of improving the shock-absorbing performance of the entire shock-absorbing structure, the anti-deformation ability of the beam is further improved.

A machine tool includes the above-mentioned vibration damping structure for the machine tool. Since the machine tool includes all the technical features of the above-mentioned vibration-damping structure for the machine tool, the machine tool also includes all the technical effects of the above-mentioned vibration-damping structure for the machine tool, which will not be repeated here.

Compared with the prior art, the damping structure for machine tools provided by the utility model includes: a beam and a supporting frame, and the beam includes: a side shell and an end cover, and the side shell adopts a hollow structure, and the The end caps are fastened to the two ends of the side shell, and the support frame is arranged inside the crossbeam. The beam structure adopted in the utility model is hollow, and compared with the solid structure, the quality of the beam is greatly reduced, while the supporting frame can improve the strength and deformation resistance of the beam. Therefore, according to the kinetic energy formula, the The greater the mass of the object, the greater the kinetic energy it has, and the greater the damage to the machine tool. Therefore, the utility model reduces the damage of the beam vibration to the machine tool by reducing the mass of the beam; at the same time, the hollow structure can also perform vibration absorption. , reducing the further transmission of beam vibration, reducing the overall amplitude of the machine tool, avoiding the vibration of the machine tools caused by the use of spring damping structures, reducing the machining accuracy of the machine tool, and resulting in lower product processing yields.

Description of drawings

Figure 1 is a schematic structural view of the sheet metal shell of the high-strength shock-absorbing CNC machine tool announced in 2021233930882.

Figure 2 is a structural schematic diagram of the beam column connection structure for machine tools announced in 2019213845644.

Fig. 3 is a structural schematic diagram of a vibration-damping structure for a machine tool in a preferred embodiment of the present invention.

Fig. 4 is a schematic diagram of the cooperative structure of the first L-shaped side plate and the second L-shaped side plate used in the vibration-damping structure of the machine tool in a further preferred embodiment of the present invention.

FIG. 5 is an enlarged view of part A in FIG. 4 .

FIG. 6 is an enlarged view of part B in FIG. 4 .

Fig. 7 is a schematic diagram of the cooperation structure between the end cover and the side shell used in the vibration damping structure of the machine tool in a further preferred embodiment of the present invention.

Fig. 8 is a schematic diagram of the connection relationship among the transverse frame, the longitudinal frame and the reinforcing frame used in the vibration-damping structure of the machine tool in a further preferred embodiment of the present invention.

Fig. 9 is a schematic diagram of the positional relationship between the damping structure used in the machine tool and the three-axis transfer mechanism in the multi-station machine tool in a further preferred embodiment of the present invention.

Fig. 10 is a schematic diagram of the connection relationship between the hollow frame and the longitudinal connecting plate used in the connecting frame used in the vibration-damping structure of the machine tool in a further preferred embodiment of the present invention.

Detailed ways

The utility model provides a vibration-damping structure and a machine tool for machine tools. In order to make the purpose, technical solutions and effects of the utility model clearer and clearer, the utility model will be further described in detail with reference to the accompanying drawings and examples (but Examples are only used for explanation and not for limiting the protection scope of the present utility model).

In order to solve the problem that the use of spring damping in the prior art will cause the vibration of the tool of the machine tool, the utility model provides a vibration damping structure for the machine tool, as shown in Figure 3, the vibration damping structure includes: a beam 100 and a support The skeleton 200 is different from the prior art in that the beam 100 in the utility model is hollow, which greatly reduces the quality of the beam 100. According to the kinetic energy formula E _k = mv ² /2, it can be known that objects with the same mass move The greater the speed, the greater its kinetic energy; the greater the mass of an object moving at the same speed, the greater its kinetic energy. For the machine tool, the kinetic energy of the disordered vibration of the beam 100, cutting tool, etc. is useless, and the smaller the kinetic energy, the better. Therefore, the utility model effectively reduces vibration by reducing the quality of the beam 100. In addition, as long as there is no vacuum around the vibrating object, there must be other forms of matter, and the vibration of the object will cause disturbance to other matter, and the disturbance will bring about the transfer of energy, and this energy transfer is called Mechanical wave; because the crossbeam 100 in the utility model adopts a hollow structure, so there is air inside and outside, when the crossbeam 100 vibrates, it will spread to the air inside and outside, and then consume the energy of vibration, further improving the vibration reduction. vibration effect. In addition, the utility model also sets a support frame 200 inside the crossbeam 100 to improve the anti-deformation ability of the crossbeam 100 when hanging objects in five directions: front, rear, left, right, upper. Therefore, the vibration damping structure for machine tools disclosed by the utility model avoids the vibration of the tool of the machine tool caused by the use of the spring damping structure, reduces the machining accuracy of the machine tool, and leads to the problem of low product processing yield. In a specific implementation, the beam 100 includes: a side shell 110 and end covers, the side shell 110 adopts a hollow structure, and the end covers are fastened to both ends of the side shell 110 .

In a specific embodiment of the present utility model, as shown in FIG. 3 , the side housing 110 includes: at least two side plates (including 210 and 220 in the example of FIG. 3 and FIG. 4 ), the first of the side plates One side is provided with a first splicing protrusion and a first splicing groove (marked in detail below), and the second side is provided with a second splicing protrusion and a second splicing groove as shown in Figure 4. It can be understood that although the utility model The new model only illustrates the structure of two L-shaped side panels assembled to form the side housing 110, but in actual implementation, one L-shaped side panel, two in-line side panels, and four in-line side panels are used. Even structures such as two concave-shaped side panels and two in-line side panels are all available, and those skilled in the art can carry out adaptive selection and adjustment according to actual conditions (such as parameters such as the size and material of the beam 100). The utility model It is impossible to list them one by one, but these options and adjustments should all belong to the protection scope of the present utility model. Similarly, if the beam 100 is not rectangular, the shape and quantity of the side plates will be adaptively changed accordingly.

When assembling, the first splicing protrusion and the first splicing groove are respectively used to adapt to the second splicing groove and the second splicing protrusion of the adjacent side plate, such as the utility model adopts Fig. 4 to Fig. 6 The composition structure of two L-shaped side plates, then when assembling, at the splicing place of one end, the first splicing protrusion A (indicated by reference numeral 211 in Fig. 5) of the first L-shaped side plate 111 will abut against the second The second splicing groove B (indicated by reference numeral 221 in FIG. 5 ) of the L-shaped side plate 112, and the first spliced groove C (indicated by the reference numeral 212 in FIG. 5 ) of the first L-shaped side plate 111 will abut against the second The second splicing protrusion D (indicated by the reference numeral 222 in FIG. 5 ) of the L-shaped side plate 112; Marked with reference numeral 213) will abut against the first splice groove F (marked with reference numeral 223 in Fig. 6) of the second L-shaped side plate 112, the second spliced groove G (in Fig. 6 Marked by the mark 214) will abut against the first splicing protrusion H of the second L-shaped side plate 112 (marked by the mark 224 in FIG. In the case of ultrasonic welding and other welding methods, the two L-shaped side plates will be tightly connected together, with excellent stability and firmness.

A similar structure is also applied to the side plates and end covers. Specifically, both ends of the side plates are provided with a third splicing protrusion 230 and a third splicing groove 240. As shown in FIG. A fourth splicing protrusion 310 and a fourth splicing groove 320 are provided, and the fourth splicing protrusion 310 and the fourth splicing groove 320 are respectively used to fit the third splicing groove 240 and the third splicing protrusion 230 on the side plate . Usually the end cover is rectangular (suitable for the overall design of the beam 100), so its four sides are provided with a fourth splicing protrusion 310 and a fourth splicing groove 320, while the side shell 110 is formed by splicing at least two side plates. Therefore, the end cover will be fastened with at least two side panels at the same time, that is to say, the end cover will act as a medium to strengthen the connection stability of the two side panels, and at the same time provide support for both ends of the side shell 110, and its supporting effect It will be equivalent to the supporting frame 200 in the beam 100, and will cooperate with the supporting frame 200 to play a reinforcing role.

Compared with the screw connection structure, if the screw connection is used, the screw will gradually loosen due to the absorption and digestion vibration of the side plate, and it is easy to cause a processing accident due to the screw falling off. The utility model adopts the method of splicing and welding to make the splicing Pave the way for welding positioning, welding strengthens the spliced joints, and improves the firmness of welding through the continuous interfitting splicing structure, which greatly improves the connection stability of the side plates in the side shell 110 And the integrity of the side shell 110 after splicing and welding; and the support frame 200 is stably limited in the beam 100, ensuring that the position of the support frame 200 will not change, and the support frame 200 that is stably limited The crossbeam 100 is also firmly supported; on the basis of improving the shock absorption performance of the entire shock-absorbing structure, the deformation resistance of the crossbeam 100 is further improved.

In a further preferred embodiment of the present utility model, the damping structure for machine tools further includes: a reinforcing rib 300, and the reinforcing rib 300 is provided with a first insertion protrusion and a second insertion protrusion; The side housing 110 is provided with insertion slots, and the first insertion protrusion and the second insertion protrusion are respectively inserted into the insertion slots on two different sides of the side housing 110 .

During specific implementation, the reinforcing ribs 300 are provided with eight (this setting is based on the premise that the crossbeam 100 is rectangular, and in the case of a change in the shape of the crossbeam 100, the number of reinforcing ribs 300 can be adjusted adaptively; and, even if it is also a crossbeam 100 is rectangular, and the number of reinforcing ribs 300 can also be adjusted according to the shape. For example, if the reinforcing ribs 300 are X-shaped, only two are needed, which can be adapted to the two ends of the beam 100). They are divided into two groups, each with four to be adapted to both ends of the beam 100; the timing of assembly can be arranged after the overall frame of the beam 100 is completed, that is, after two (or more) side panels are buckled to form the side shell 110 . And the effect of this arrangement is: since the first insertion protrusion and the second insertion protrusion are respectively inserted into the insertion grooves on two different sides of the side housing 110, the matching structure of the insertion protrusion and the insertion groove on the one hand The strength at the corner of the side shell 110 is improved, and on the other hand, the connection strength between the two different sides of the side shell 110 is improved; if the beam 100 needs to move under the drive of the three-axis transfer mechanism, the rib 300 can The movement consistency of each component of the beam 100 is effectively improved, and the integrity of the beam 100 is ensured.

Further, the reinforcing rib 300 is provided with a first threaded hole, and the end cap is provided with a second threaded hole, and the end cap is detachably connected to the Together. The reinforcing rib 300 not only plays a supporting role at the corner of the side shell 110, but also connects the end cover and the side shell 110 (according to the number of side plates of the side shell 110, may also include different side plates of the side shell 110) into a As a whole, the overall strength of the beam 100 is obviously improved; and when the beam 100 needs to be moved under the drive of the three-axis transfer mechanism, the connection relationship between the rib 300 and the end cover can further improve the movement consistency of each component of the beam 100, The integrity of the beam 100 is significantly improved.

According to another aspect of the present utility model, the supporting frame 200 includes: a transverse frame 210 (parallel to the upper and lower sides of the side shell 110) and a longitudinal frame 220 (parallel to the front and back of the side shell 110), the transverse frame Two ends of the frame 210 are respectively inserted and connected to the front and rear sides of the beam 100 , and two ends of the longitudinal frame 220 are respectively inserted and connected to the upper and lower sides of the beam 100 . The longitudinal framework 220 can increase the strength between the upper and lower sides of the beam 100, and the transverse framework 210 can increase the strength between the front and rear sides of the beam 100, and since the longitudinal framework 220 and the transverse framework 210 must intersect, the overall strength of the beam 100 will be greatly improved; and due to the existence of the supporting frame 200, the integrity of the beam 100 is bound to be further improved, so the supporting frame 200 will further improve the movement consistency of each component when the beam 100 moves.

Further, the supporting frame 200 also includes: a reinforcing frame 230 (parallel to the end cap), as shown in FIG. 8 , the reinforcing frame 230 is perpendicular to the longitudinal frame 220 and the transverse frame 210 and parallel to the end cap . The setting of the reinforcing frame 230 further strengthens the strength of the beam 100, and since it intersects with the longitudinal frame 220 and the transverse frame 210, the overall strength of the beam 100 and the movement consistency of each component will be greatly improved when moving.

When assembling, preferably the supporting frame 200 is assembled first, that is, the transverse frame 210, the longitudinal frame 220 and the reinforcing frame 230 are assembled into one (welded by means of ultrasonic waves after assembly), and then the supporting frame 200 is connected to Any one of the two L-shaped side plates is assembled against the other of the two L-shaped side plates, and then the welding of each connection point is performed from the outside; so far, the assembly of the supporting frame 200 and the beam 100 is completed; and the reinforcement The assembly of the ribs 300 can be performed before welding or after welding, preferably the former, so as to reduce one welding process and improve production efficiency; but the utility model does not specifically limit this.

Preferably, the longitudinal frame 220 , the transverse frame 210 and the reinforcing frame 230 are all provided with shock absorbing holes. On the one hand, the shock-absorbing holes can reduce the weight of the supporting frame 200, and on the other hand, they can absorb the vibration transmitted from the beam 100, so that the longitudinal frame 220, the transverse frame 210 and the reinforcing frame 230 can improve the performance of the beam 100 while improving the performance of the entire shock-absorbing structure. shock absorbing capacity.

According to another aspect of the present utility model, the beam 100 is a moving beam, which is used to drive the X-axis transfer mechanism 020 and the Z-axis transfer mechanism 030 to move under the drive of the Y-axis transfer mechanism 010, as shown in FIG. 9 The Z-axis transfer mechanism 030 is provided with a plurality, and the plurality of Z-axis transfer mechanisms 030 are distributed on the front and rear sides of the beam 100, between at least two Z-axis transfer mechanisms 030 on the same side They are connected by a connecting frame 400 to be driven by the same X-axis transfer mechanism 020 . The moving beam structure driven by the Y-axis transfer mechanism 010 and the multi-Z-axis transfer mechanism 030 suitable for multi-station can improve the machining efficiency of the machine tool while reducing the production cost of the workpiece, and the rib 300 and/or the support frame 200 This ensures the movement consistency of each component when the crossbeam 100 moves, thereby improving the consistency and yield rate of workpiece processing on each workbench.

Further, as shown in FIG. 10 , the connecting frame 400 includes: a hollow frame 410 and at least one longitudinal support plate 420 (if the connecting frame 400 has a relatively large length or other situations where the strength of the connecting frame 400 needs to be improved, those skilled in the art The adaptive adjustment of the structure of the connecting frame 400 can be carried out according to the actual situation, such as adding a horizontal support plate, etc., FIG. Hollow structure; the hollow frame 410 is provided with a connection groove on the side facing the longitudinal support plate 420, and the longitudinal support plate 420 is provided with a connection protrusion on the side facing the hollow frame 410, and the connection groove is connected to the side of the hollow frame 410. Match the connecting protrusions mentioned above. Both the hollow frame 410 and the longitudinal support plate 420 adopt a hollow structure with a small mass. While ensuring that the Z-axis transfer mechanism 030 is connected together, the vibration will not be large due to the large mass, but will be caused by the small size of the hollow structure. The quality and shock-absorbing characteristics reduce the vibration force transmitted by the Z-axis transfer mechanism 030 and the beam 100, thereby improving the shock resistance of the machine tool; at the same time, the cooperation between the connecting groove and the connecting protrusion will form a mortise and tenon structure (which can then be used Ultrasonic welding and other methods for reinforcement), so that the hollow frame 410 and the longitudinal support plate 420 are closely combined to ensure the overall strength of the connecting frame 400. In specific implementation, when the Z-axis transfer mechanism 030 is symmetrically arranged, at least four Z-axis transfer mechanisms 030 symmetrically distributed on both sides of the beam 100 share one X-axis transfer mechanism 020, and the connecting frame 400 is set There are two, and the two connecting frames 400 are connected to the X-axis transfer mechanism 020 through connecting plates.

The utility model also provides a machine tool, including the above-mentioned damping structure for the machine tool.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means can be embodied by one and the same item of hardware. The use of the words first, second, and third, etc. does not indicate any order. These words can be interpreted as names. The steps in the above embodiments, unless otherwise specified, should not be construed as limiting the execution order.

Claims (10)

1. A vibration damping structure for a machine tool, comprising: the crossbeam, its characterized in that still includes: support skeleton, the crossbeam includes: the side face shell adopts a hollow structure, the end covers are buckled at two ends of the side face shell, and the supporting framework is arranged inside the cross beam.

2. The vibration reducing structure for a machine tool according to claim 1, further comprising: the reinforcing rib is provided with a first inserting protrusion and a second inserting protrusion; the side surface shell is provided with a plug groove, and the first plug protrusion and the second plug protrusion are respectively inserted into the plug grooves on two different side surfaces of the side surface shell.

3. The vibration reduction structure for a machine tool according to claim 2, wherein the reinforcing rib is provided with a first threaded hole, the end cover is provided with a second threaded hole, and the end covers are detachably connected together through the first threaded hole, the second threaded hole and the threaded connecting piece.

4. The vibration reducing structure for a machine tool according to claim 1, wherein the support frame includes: the transverse framework and the longitudinal framework are respectively inserted and connected to the front side surface and the rear side surface of the cross beam, and the two ends of the longitudinal framework are respectively inserted and connected to the upper side surface and the lower side surface of the cross beam.

5. The vibration reduction structure for a machine tool according to claim 4, wherein the support frame further comprises: and the reinforcing framework is perpendicular to the longitudinal framework and the transverse framework and parallel to the end cover.

6. The vibration reducing structure for a machine tool according to claim 5, wherein the longitudinal frames, the transverse frames and the reinforcing frames are provided with vibration reducing holes.

7. The vibration reducing structure for a machine tool according to any one of claims 2 to 6, wherein the cross beam is a movable beam for driving the X-axis transfer mechanism and the Z-axis transfer mechanism to move under the drive of the Y-axis transfer mechanism; the Z-axis transfer mechanisms are arranged in a plurality, the Z-axis transfer mechanisms are distributed on the front side and the rear side of the cross beam, and at least two Z-axis transfer mechanisms positioned on the same side are connected through a connecting frame so as to be driven by the same X-axis transfer mechanism.

8. The vibration reducing structure for a machine tool according to claim 7, wherein the link includes: the device comprises a hollow frame and at least one longitudinal supporting plate, wherein the longitudinal supporting plate adopts a hollow structure; the hollow frame is faced to one side of the longitudinal support plate and is provided with a connecting groove, one side of the longitudinal support plate is faced to one side of the hollow frame and is provided with a connecting protrusion, and the connecting groove is matched with the connecting protrusion.

9. The vibration reducing structure for a machine tool according to claim 1, wherein the side housing includes: the device comprises at least two side plates, wherein a first splicing protrusion and a first splicing groove are arranged on the first side of each side plate, a second splicing protrusion and a second splicing groove are arranged on the second side of each side plate, and the first splicing protrusion and the first splicing groove are respectively used for being matched with the second splicing groove and the second splicing protrusion of the adjacent side plate; the two ends of the side plate are provided with a third splicing bulge and a third splicing groove, the edge of the end cover is provided with a fourth splicing bulge and a fourth splicing groove along the edge, and the fourth splicing bulge and the fourth splicing groove are respectively used for being matched with the third splicing groove and the third splicing bulge on the side plate; the adjacent side plates and the end covers are welded together after being spliced.

10. A machine tool comprising a vibration damping structure for a machine tool according to any one of claims 1 to 9.

Images