Numerically-controlled machine tool mounting seat

Abstract

The utility model discloses a numerical control machine tool mounting seat which comprises a bottom supporting frame, fixing seats, a guide rail and a multidirectional fixed unloading structure, the fixing seats are arranged at intervals, and the multidirectional fixed unloading structure comprises a rigid connecting piece arranged between the two fixing seats. The two transverse ends of each rigid connecting piece are fixedly connected between every two adjacent fixing bases correspondingly, a particle damping box is movably installed on the back side of each rigid connecting piece and fixedly connected to the top plate of the bottom supporting frame, the bottom of each rigid connecting piece extends towards the front face to form a front bottom plate, and a plurality of connecting springs are arranged at the bottom of each front bottom plate. When the tool apron slides on the guide rail, the longitudinal force of the tool apron on the fixed seat is transmitted to the connecting spring through the rigid connecting piece and the front bottom plate, and the transverse force of the tool apron on the fixed seat is bound by the particle damping box and is transmitted to the top plate after being consumed by the particle damping box, so that the hardness and elasticity requirements when the base is matched with the guide rail are balanced.

Description

Technical Field

[0001] The utility model relates to a base, in particular to a mounting base for a numerical control machine tool. Background Art

[0002] The processing accuracy of CNC machine tools can generally reach 0.05-0.1mm. CNC machine tools are controlled in the form of digital signals. Every time the CNC device outputs a pulse signal, the moving parts of the machine tool move a pulse equivalent (generally 0.001mm), and the reverse clearance of the machine tool feed transmission chain and the average error of the lead screw pitch can be compensated by the CNC device. In existing CNC machine tools, the workpiece is often fixed on a rotatable shaft head, and then the tool holder loaded with the tool is moved left and right on the guide rail to process the workpiece into a suitable style.

[0003] In the machine tools of the prior art, the guide rails for moving the tool holder are generally installed on the base of the machine tool. The accuracy of the movement of the tool holder on the guide rails directly determines the feeding accuracy of the tool. However, the existing ways of installing the guide rails on the guide rails either directly adopt a rigid method, that is, directly stacking the strength of the material to improve the strength of the base. If the pursuit of strength is blindly pursued, the lines and debris of the electrical box cannot be completely guided out of the box body, and additional wiring, wires, and fluid guides are required, which is actually putting the cart before the horse. Or, an elastic method is directly adopted, that is, elastic materials such as damping and springs are used to reduce the influence of the workpiece processing vibration on the base. In this case, the strength is easily slightly insufficient, and when the structure of the fixed guide rail is bent and difficult to absorb shock, it is easy to be permanently deformed. Utility Model Content

[0004] The utility model provides a CNC machine tool mounting seat, which can not only balance the hardness and elasticity requirements when cooperating with the guide rail, but also provide a reasonable space for the wiring of the electric box without affecting the strength of the entire base, and can effectively solve the above problems.

[0005] The utility model is achieved in this way:

[0006] A CNC machine tool mounting seat, comprising a bottom support frame, wherein the upper end of the bottom support frame is fixedly connected to a plurality of C-shaped fixing seats, the upper end of the fixing seats is locked with a guide rail, and the CNC machine tool mounting seat further comprises:

[0007] A multi-directional fixed unloading structure, wherein the fixed seats are arranged at intervals from each other, and the multi-directional fixed unloading structure includes a rigid connector arranged between the two fixed seats, the two lateral ends of the rigid connector are respectively fixedly connected between two adjacent fixed seats, a particle damping box is movably installed on the back side of the rigid connector, and the particle damping box is fixedly connected to the top plate of the bottom support frame, and a front bottom plate is extended from the bottom of the rigid connector to the front, and a plurality of connecting springs are arranged at the bottom of the front bottom plate. When the knife seat slides on the guide rail, the longitudinal force of the knife seat on the fixed seat will be transmitted to the connecting spring via the rigid connector and the front bottom plate, and the lateral force of the knife seat on the fixed seat will be constrained by the particle damping box and transmitted to the top plate after being consumed by the particle damping box.

[0008] As a further improvement, the rigid connecting member includes a reinforcing rib located between the two fixing seats, a connecting block is locked to a side of the reinforcing rib close to the particle damping box, and the front bottom plate is fixed to the bottom of the reinforcing rib.

[0009] As a further improvement, a vertical sliding bar is provided on the connecting block, and an outwardly protruding sliding groove is provided on the particle damping box. When the fixing seat vibrates, the sliding bar slides up and down in the sliding groove.

[0010] As a further improvement, the connecting spring is a tower-shaped spring.

[0011] As a further improvement, a plurality of column tubes are provided on the top plate, and the column tubes are used to provide space for the wires connected to the electrical box. The upper half of the column tubes is attached to the side of the front bottom plate through a porous backing plate, and the porous backing plate is made of flexible material.

[0012] As a further improvement, a top support seat is provided at the bottom of the bottom surface of the top plate, and an outer protective sleeve seat surrounding the outer side of the column tube is connected to the side of the top support seat close to the column tube.

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

[0014] In the existing structures, the guide rail is directly fixed by a C-shaped fixing seat, so that the guide rail is fixed and has a certain elasticity at the same time. However, this can easily cause the guide rail to be disturbed by external forces during the movement and thus cannot be moved into place. In this regard, the utility model adds a multi-directional fixed unloading structure. First, a rigid connecting piece can be set between the two fixing seats to ensure the rigidity of the two adjacent fixing seats, thereby avoiding excessive bending of the original C-shaped fixing seat and avoiding permanent damage to the fixing seat that cannot be restored after the force exceeds a certain pressure;

[0015] Then, a particle damping box that can cooperate with the rigid connector up and down is arranged on the side of the fixed seat. Since the two ends of the particle damping box are respectively attached to the rigid connector and the top plate of the bottom support frame, it can not only reduce vibration and silence noise through the internal damping particles, but also disperse the vibration force to the entire top plate. In addition, since the particle damping box and the rigid connector are movably matched up and down, there is a certain limiting effect in the lateral direction. Since the particle damping box is fixedly connected to the top plate, when the knife seat moves laterally on the guide rail, it is not easy for the entire structure to move left and right.

[0016] Finally, on the opposite side of the particle damping box, the utility model extends a front bottom plate outward from the bottom of the particle damping box, and a connecting spring is arranged below the front bottom plate, so that when the knife seat and the guide rail are slightly moved up and down, it can not only be offset by the up and down movement of the particle damping box and the rigid connecting part, but also be evenly distributed through the compression of the connecting spring.

[0017] In the rigid connector, the ribs need to be strengthened first to ensure the overall strength, and then the sliding bar on the connecting block is matched with the sliding groove on the particle damping box, so as to achieve the purpose of rigid support and the effect of buffering, shock absorption and left and right limiting.

[0018] Since an electric box is to be installed in the empty slot at one top corner of the base, it is necessary to open a hole in the top plate to wire the wires so as to connect them to the electric box. Therefore, the utility model opens a plurality of columns at the position of the top plate to wire the wires. However, the strength of the top plate is reduced after the holes are opened when the wires are led through the columns. Therefore, the utility model provides a porous support plate in the upper half of the column tube, which is used to support the lateral direction of the column tube and to provide auxiliary positioning, while an outer protective sleeve seat is provided in the lower half of the column tube, which is used to protect and fix the position of the column tube, and can also provide secondary support to the inclined top plate through the top support seat, so that the strength of the entire top plate will not be greatly attenuated after the column tube is set. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a first viewing angle of a three-dimensional structural schematic diagram of a CNC machine tool base of the utility model.

[0021] Figure 2 It is a second viewing angle of a three-dimensional structural schematic diagram of a CNC machine tool base of the utility model.

[0022] Figure 3 It is a first viewing angle of a three-dimensional structural schematic diagram of a multi-directional fixed unloading structure of the utility model.

[0023] Figure 4 The utility model is a top view structural schematic diagram of a multi-directional fixed unloading structure.

[0024] Figure 5 This is the second viewing angle of the three-dimensional structural schematic diagram of the multi-directional fixed unloading structure of the utility model. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0026] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] Reference Figure 1 to Figure 5As shown, a CNC machine tool mounting seat includes a bottom support frame 10, the upper end of the bottom support frame 10 is fixedly connected to a plurality of C-shaped fixing seats 20, the upper end of the fixing seats 20 is locked with a guide rail, and the CNC machine tool mounting seat also includes: a multi-directional fixed unloading structure 40, the fixing seats 20 are arranged at intervals, the multi-directional fixed unloading structure 40 includes a rigid connecting member 41 arranged between two of the fixing seats 20, the two transverse ends of the rigid connecting member 41 are respectively fixedly connected between two adjacent fixing seats 20, and the rigid connecting member 41 is A particle damping box 42 is movably installed on the back side, and the particle damping box 42 is fixedly connected to the top plate 11 of the bottom support frame 10. A front bottom plate 43 is extended from the bottom of the rigid connecting member 41 to the front. A plurality of connecting springs 44 are arranged at the bottom of the front bottom plate 43. When the knife seat slides on the guide rail, the longitudinal force of the knife seat on the fixed seat 20 will be transmitted to the connecting spring 44 via the rigid connecting member 41 and the front bottom plate 43, and the lateral force of the knife seat on the fixed seat 20 will be restrained by the particle damping box 42 and transmitted to the top plate 11 after being consumed by the particle damping box 42.

[0028] In this embodiment, the bottom support frame 10 is an alloy welded frame, most of which is a stainless steel structure. A notch is provided at the upper right end for installing an electrical box. In order to avoid contamination of the electrical box during processing, the electrical box is often separated from the entire processing chamber.

[0029] In the existing base, the guide rail is usually welded on the C-shaped fixed seat 20, and then the tool holder is slidably matched with the guide rail, so that the tool holder is close to or away from the workpiece on the shaft head.

[0030] In the existing structure, the guide rail is directly fixed by the C-shaped fixing seat 20, so that the guide rail is fixed and has a certain elasticity at the same time. However, this can easily cause the guide rail to be disturbed by external forces during the movement and thus cannot be moved into place. In this regard, the utility model adds a multi-directional fixed unloading structure 40. First, a rigid connecting member 41 can be set between the two fixing seats 20 to ensure the rigidity of the two adjacent fixing seats 20, thereby avoiding excessive bending of the original C-shaped fixing seat 20 and avoiding permanent damage to the fixing seat 20 that cannot be restored after the force exceeds a certain pressure.

[0031] In the rigid connector 41, specifically, the rigid connector 41 includes a reinforcing rib 411 located between the two fixed seats 20, and the reinforcing rib 411 is locked with a connecting block 412 on one side close to the particle damping box 42, and the front bottom plate 43 is fixedly connected to the bottom of the reinforcing rib 411. The reinforcing rib 411 is first required to ensure the overall strength, and the reinforcing rib 411 is an integral solid structure. Furthermore, a vertical sliding bar 413 is provided on the connecting block 412, and an outwardly convex sliding groove 421 is provided on the particle damping box 42. When the fixed seat 20 vibrates, the sliding bar 413 slides up and down in the sliding groove 421, and then the sliding bar 413 on the connecting block 412 is used to cooperate with the sliding groove 421 on the particle damping box 42, thereby achieving the purpose of rigid support and the effects of buffering, shock absorption, and left and right limiting.

[0032] Thereafter, a particle damping box 42 is arranged on the side of the fixed seat 20, which can cooperate with the rigid connecting piece 41 up and down. Since the two ends of the particle damping box 42 are respectively attached to the rigid connecting piece 41 and the top plate 11 of the bottom support frame 10, it can not only reduce vibration and silence noise through the internal damping particles, but also disperse the vibration force to the entire top plate 11. Moreover, since the particle damping box 42 and the rigid connecting piece 41 are movably matched up and down, there is a certain limiting effect in the lateral direction. Since the particle damping box 42 is fixedly connected to the top plate 11, when the knife seat moves laterally on the guide rail, it is not easy for the entire structure to shift left and right.

[0033] The particle damping box 42 has separate chambers inside, and the chambers are filled with damping particles. The specific structure of the particle damping box 42 is prior art and will not be described in detail here.

[0034] Finally, on the opposite side of the particle damping box 42, the utility model extends a front bottom plate 43 outward from the bottom of the particle damping box 42, and a connecting spring 44 is provided below the front bottom plate 43, so that when the knife seat and the guide rail are slightly moved up and down, it can not only be offset by the up and down movement of the particle damping box 42 and the rigid connecting member 41, but also be evenly distributed through the compression of the connecting spring 44.

[0035] In order to ensure the effects of shock absorption and force transmission, the connecting spring 44 is a tower-shaped spring, which can ensure the shock absorption effect even in a small interval between the front bottom plate 43 and the top plate 11.

[0036] Since an electric box is to be set in the empty slot at a top corner of the base, it is necessary to open a hole in the top plate 11 for wiring to connect with the electric box. Therefore, the top plate 11 of the utility model is provided with a plurality of column tubes 111, and the column tubes 111 are used to provide space for the wires connected to the electric box. The upper half of the column tubes 111 is attached to the side of the front bottom plate 43 through a porous backing plate 112. The wiring is arranged by opening a plurality of column tubes 111 at the position of the top plate 11. However, the strength of the top plate 11 is reduced after the holes are opened. Therefore, the utility model is provided with a porous backing plate 112 in the upper half of the column tube 111, and the porous backing plate 112 is used to support the lateral direction of the column tube 111. Relying on and serving as an auxiliary limiter, in the lower half of the column 111, a top support seat 45 is arranged at the bottom of the bottom surface of the top plate 11, and the top support seat 45 is connected to a side close to the column 111 with an outer protective sleeve seat 46 surrounding the outside of the column 111. By setting the outer protective sleeve seat 46, the position of the column 111 is protected and fixed by the outer protective sleeve seat 46, and the top support seat 45 can also provide secondary support to the inclined top plate 11, so that after the column 111 is set, the strength of the entire top plate 11 will not be greatly attenuated, and the purpose of the porous support plate 112 being a flexible material is that it needs to have a certain deformation amount during the compression of the connecting spring 44.

[0037] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A CNC machine tool mounting base, characterized in that: The invention comprises a bottom support frame (10), the upper end of the bottom support frame (10) is fixedly connected to a plurality of C-shaped fixing seats (20), the upper end of the fixing seats (20) is locked to a guide rail, and the CNC machine tool mounting seat further comprises: A multi-directional fixed unloading structure (40), wherein the fixed seats (20) are arranged at intervals from each other, the multi-directional fixed unloading structure (40) comprises a rigid connector (41) arranged between two of the fixed seats (20), the two transverse ends of the rigid connector (41) are respectively fixedly connected between two adjacent fixed seats (20), a particle damping box (42) is movably installed on the back side of the rigid connector (41), and the particle damping box (42) is fixedly connected to the top plate of the bottom support frame (10). (11), a front bottom plate (43) is extended from the bottom of the rigid connecting member (41) toward the front, and a plurality of connecting springs (44) are arranged at the bottom of the front bottom plate (43). When the knife seat slides on the guide rail, the longitudinal force of the knife seat on the fixed seat (20) will be transmitted to the connecting springs (44) via the rigid connecting member (41) and the front bottom plate (43), and the lateral force of the knife seat on the fixed seat (20) will be restrained by the particle damping box (42) and transmitted to the top plate (11) after being consumed by the particle damping box (42).

2. A CNC machine tool mounting base according to claim 1, characterized in that: The rigid connecting member (41) comprises a reinforcing rib (411) located between the two fixing seats (20), a connecting block (412) is locked to one side of the reinforcing rib (411) close to the particle damping box (42), and the front bottom plate (43) is fixed to the bottom of the reinforcing rib (411).

3. A CNC machine tool mounting base according to claim 2, characterized in that: The connecting block (412) is provided with a vertical sliding bar (413), and the particle damping box (42) is provided with an outwardly protruding sliding groove (421). When the fixing seat (20) vibrates, the sliding bar (413) slides up and down in the sliding groove (421).

4. A CNC machine tool mounting base according to claim 1, characterized in that: The connecting spring (44) is a conical spring.

5. The CNC machine tool mounting base according to claim 1, characterized in that: The top plate (11) is provided with a plurality of column tubes (111), and the column tubes (111) are used to provide space for wires connected to the electrical box. The upper half of the column tubes (111) is attached to the side of the front bottom plate (43) through a porous backing plate (112), and the porous backing plate (112) is made of a flexible material.

6. A CNC machine tool mounting base according to claim 5, characterized in that: A top support seat (45) is disposed at the bottom of the bottom surface of the top plate (11), and a side of the top support seat (45) close to the column tube (111) is connected to an outer protective sleeve seat (46) surrounding the outer side of the column tube (111).

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