Slide structure and machine tool

Abstract

The present invention discloses a slide structure and a machine tool, wherein the slide structure comprises a workbench, a slide and a rolling support structure, the slide is movably installed on the workbench along the horizontal direction, the rolling support structure comprises a rotating mounting part arranged on the slide, a roller structure is rotatably installed on the rotating mounting part, the rotating mounting part has a rotating mounting axis that rotates coaxially with the roller structure, the height of the rotating mounting axis is adjustable so that the roller structure has a rolling support position and an idle position, when the roller structure is in the rolling support position, the roller structure is supported on the workbench so that the slide is separated from the workbench, when the roller structure is in the idle position, the slide is pressed against the workbench, the rotating mounting part and the roller structure can not only help to reduce the friction resistance between the slide and the workbench, facilitate moving the slide, but also relieve the pressure of the roller structure, which helps to extend the service life of the roller structure.

Description

Technical Field

[0001] The invention relates to the technical field of machine tool processing, and in particular to a slide structure and a machine tool. Background Art

[0002] The position of the workpiece on the machine tool is usually adjusted by moving the slide device. In the current slide device, the workpiece is generally installed on the upper end of the slide, and the lower end of the slide is directly placed on the machine tool and can slide along the surface of the machine tool to drive the workpiece. The existing slide device is mainly used for the movement of some small workpieces. For some large and heavy workpieces, due to the excessive weight of the workpiece, the friction resistance between the slide and the machine tool is too large, which makes the slide difficult to move. Summary of the invention

[0003] The main purpose of the present invention is to provide a slide structure and a machine tool, aiming to solve the problem that the slide is difficult to move due to the excessive weight of the workpiece in the existing slide device.

[0004] To achieve the above object, the present invention provides a slide structure for a machine tool, the slide structure comprising:

[0005] Workbench;

[0006] a slide table, movably mounted on the workbench in a horizontal direction; and

[0007] A rolling support structure, comprising a rotating mounting portion provided on the slide, a roller structure being rotatably mounted on the rotating mounting portion, the rotating mounting portion having a rotating mounting axis coaxially rotating with the roller structure, and the height of the rotating mounting axis being adjustable so that the roller structure has a rolling support position and an idle position;

[0008] When the roller structure is in the rolling support position, the roller structure is supported on the workbench so that the slide is separated from the workbench. When the roller structure is in the idle position, the slide is pressed against the workbench.

[0009] Optionally, the rolling support structure comprises:

[0010] Two eccentric shafts are rotatably mounted on the slide;

[0011] A rotation operation portion, provided on one of the two eccentric shafts, for operating the eccentric shaft to rotate; and

[0012] A rotation transmission structure is arranged between the two eccentric shafts to make the two eccentric shafts rotate synchronously;

[0013] The rotating mounting portion includes two eccentric shafts.

[0014] Optionally, the rotation transmission structure includes:

[0015] Two transmission arms, one end of which is respectively mounted on the two eccentric shafts; and,

[0016] The connecting arm has two ends hinged to the other ends of the two transmission arms.

[0017] Optionally, a guide rail is protruding from the upper end of the workbench;

[0018] Correspondingly, the roller structure includes a V-shaped roller rollingly mounted on the guide rail.

[0019] Optionally, the slide structure further includes a driving device, and the driving device includes:

[0020] A driving shaft is rotatably mounted on the slide along a horizontal axis;

[0021] A linear drive structure, comprising a driving gear and a driving rack meshing with each other, wherein the driving gear and the driving rack are respectively arranged on the driving shaft and the workbench; and

[0022] The driving operation part has a driving wheel connected to the driving shaft to operate the driving shaft to rotate.

[0023] Optionally, the driving device further comprises a driving transmission structure, the driving transmission structure comprises an upper transmission gear and a lower transmission gear meshing with each other, the upper transmission gear is arranged on the slide, the lower transmission gear is arranged on the driving shaft, and the upper transmission gear and the lower transmission gear are arranged vertically;

[0024] Wherein, the driving operation part is arranged on the upper transmission gear to drive the driving shaft to rotate.

[0025] Optionally, the drive shaft is movably installed on the slide along the left and right directions. Within the movable stroke of the drive shaft, the drive shaft has a driving position in which the drive rack is engaged with the drive gear, and an avoidance position in which the drive gear is separated from the drive rack.

[0026] Optionally, the driving device further includes:

[0027] An operating rod is movably mounted on the slide in a horizontal direction, and the operating rod is drivingly connected to the drive shaft so as to move the drive shaft from the avoidance position to the driving position;

[0028] a return spring, sleeved on the operating rod, to return the drive shaft from the driving position to the avoidance position; and

[0029] The locking bolt has an abutting end and a driving end opposite to each other, wherein the abutting end abuts against the operating rod, and the driving end is used to drive the abutting end to lock the operating rod on the slide.

[0030] Optionally, the workbench is provided with a slide groove extending in the horizontal direction, and the slide is provided with a through hole;

[0031] The slide structure further includes a locking structure, which includes:

[0032] A locking block, the lower end of which is movably mounted on the slide groove in the front-rear direction, and the upper end of which is passed through the through hole; and

[0033] The locking drive structure is arranged at the upper end of the locking block to cooperate with the locking block to lock and fix the slide table to the workbench.

[0034] In addition, the present invention provides a machine tool, which includes the above-mentioned slide structure.

[0035] The cam is then moved to a position where the guide wheel is in a position to move the platform, thereby reducing the friction between the platform and the slide and thereby preventing the slide from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0037] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of the slide structure provided by the present invention;

[0038] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of the slide structure (hidden slide);

[0039] Figure 3 for Figure 1 A schematic diagram of the main structure of the slide structure;

[0040] Figure 4 for Figure 1 A schematic cross-sectional view of the slide structure at one angle;

[0041] Figure 5 for Figure 5 A local enlarged structural diagram at A in FIG.

[0042] Figure 6 for Figure 1 A schematic diagram of the cross-sectional structure of the slide structure from another angle.

[0043] Description of Figure Numbers:

[0044] Label name Label name 100 Slide structure 42 Linear drive structure 1 Workbench 421 Drive gear 11 Base 422 Drive rack 12 Slide 43 Drive operation unit 13 guide 44 Drive transmission structure 2 Slide 441 Upper transmission gear 3 Rolling support structure 442 Lower transmission gear 31 Eccentric shaft 45 Joystick 32 Rotation operation unit 46 Return spring 33 Rotation transmission structure 47 Locking bolt 331 Transmission arm 48 Roller structure 332 Connecting arm 5 Locking structure 4 Drive device 51 Locking block 41 Drive shaft 52 Locking drive structure

[0045] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] It should be noted that if a directional indication is involved in the embodiment of the present invention, the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0048] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their 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 at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0049] The position of the workpiece on the machine tool is usually adjusted by moving the slide device. In the current slide device, the workpiece is generally installed on the upper end of the slide, and the lower end of the slide is directly placed on the machine tool and can slide along the surface of the machine tool to drive the workpiece. The existing slide device is mainly used for the movement of some small workpieces. For some large and heavy workpieces, due to the excessive weight of the workpiece, the friction resistance between the slide and the machine tool is too large, which makes the slide difficult to move.

[0050] In view of this, the present invention provides a slide structure, which aims to solve the problem that the slide is difficult to move due to the heavy workpiece in the existing slide device. Figures 1 to 6 A structural schematic diagram of an embodiment of a slide structure provided by the present invention.

[0051] See also Figures 1 to 3 The slide structure 100 includes a workbench 1, a slide 2 and a rolling support structure 3. The slide 2 is movably installed on the workbench 1 along the horizontal direction. The rolling support structure 3 includes a rotating mounting portion provided on the slide 2. A roller structure 48 is rotatably installed on the rotating mounting portion. The rotating mounting portion has a rotating mounting axis that rotates coaxially with the roller structure 48. The height of the rotating mounting axis is adjustable so that the roller structure 48 has a rolling support position and an idle position. When the roller structure 48 is in the rolling support position, the roller structure 48 is supported on the workbench 1 so that the slide 2 is separated from the workbench 1. When the roller structure 48 is in the idle position, the slide 2 is pressed against the workbench 1.

[0052] In the technical solution of the present invention, when it is necessary to move the slide 2, the rotating mounting portion is rotated so that the height of the rotating mounting axis is increased, so that the roller structure 48 is in the rolling support position, so as to lift the slide 2 upward, so that the slide 2 is disengaged from the workbench 1, so that the slide 2 is rollingly mounted on the workbench 1 through the roller, so that the slide 2 and the workbench 1 form sliding friction, reducing the friction resistance between the slide 2 and the workbench 1, so as to move the slide 2. When the slide 2 moves to the corresponding position, the rotating mounting portion is rotated. The height of the rotating installation axis is lowered so that the roller structure 48 is in the idle position, and the slide 2 is pressed downward against the workbench 1, so as to reduce the pressure on the roller structure 48 and avoid damage to the roller structure 48 due to long-term high pressure, thereby helping to protect the roller structure 48. In this way, the rotating installation part and the roller structure 48 can help reduce the friction resistance between the slide 2 and the workbench 1, facilitate moving the slide 2, and reduce the pressure on the roller structure 48, which helps to extend the service life of the roller structure 48.

[0053] It should be noted that the slide 2 can be movably mounted on the workbench 1 in the left-right direction or in the front-back direction, etc., and the present invention does not limit this. Specifically, the workbench 1 includes a machine base 11 and two slides 12 arranged at the upper end of the machine base 11, and the two slides 12 are arranged at intervals in the left-right direction, wherein the two ends of the slide 2 are movably mounted on the two mounting seats in the front-back direction. Furthermore, the spacing between the two slides 12 can be adjusted in the left-right direction so that the slide 12 can adapt to slides 2 of different sizes, which helps to improve the versatility of the slide structure 100.

[0054] Furthermore, the rolling support structure 3 includes two eccentric shafts 31, a rotating operating part 32 and a rotating transmission structure 33. The two eccentric shafts 31 are rotatably installed on the slide 2. The rotating operating part 32 is arranged on one of the two eccentric shafts 31 to operate the eccentric shaft 31 to rotate. The rotating transmission structure 33 is arranged between the two eccentric shafts 31 to make the two eccentric shafts 31 rotate synchronously. The rotating installation part includes two eccentric shafts 31. In this way, when the rotating operating part 32 drives one of the two eccentric shafts 31 to rotate, the other eccentric shaft 31 can also rotate synchronously through the rotating transmission structure 33, so that the two eccentric shafts 31 can rise or fall at the same time, so that the slide 2 can rise or fall smoothly. It can be understood that there can be two or more eccentric shafts 31, and the present invention is not limited to this. Furthermore, multiple eccentric shafts 31 can be connected through multiple rotating transmission structures 33 so that the multiple eccentric shafts 31 can rotate synchronously.

[0055] Furthermore, the rotation transmission structure 33 includes two transmission arms 331 and a connecting arm 332, one end of the two transmission arms 331 is respectively installed on the two eccentric shafts 31, and both ends of the connecting arm 332 are hinged to the other end of the two transmission arms 331. In this way, by setting the connecting arm 332, the torque of one of the two eccentric shafts 31 can be transmitted to the other eccentric shaft 31, so that the two eccentric shafts 31 can maintain synchronous rotation.

[0056] In order to make the roller structure 48 move in a straight line, in the present embodiment, a guide rail 13 is protruding from the upper end of the workbench 1, and correspondingly, the roller structure 48 includes a V-shaped roller rollingly mounted on the guide rail 13. With such a configuration, the roller structure 48 can roll along a predetermined route through the mutually coordinated guiding guide rails 13 and the V-shaped rollers, thereby helping to improve the stability of the movement of the slide 2.

[0057] It should be noted that, in theory, in order to ensure that the roller structure 48 rolls in a straight line, the guide rails 13 and the V-shaped rollers should be set at both ends of the slide 2. However, such a setting has high requirements for assembly, which increases the difficulty of assembling the slide structure 100. In order to reduce the difficulty of assembling the slide structure 100, in this embodiment, the guide rails 13 and the V-shaped rollers are set in a one-to-one correspondence as a guide group, and one guide group is set, and one guide group is set at one end of the slide 2.

[0058] There are many ways to drive the slide 2. The slide 2 can be manually driven or electrically driven. For details, please refer to Figures 4 to 6 The slide structure 100 also includes a driving device 4, which includes a driving shaft 41, a linear driving structure 42 and a driving operating part 43. The driving shaft 41 is rotatably installed on the slide 2 along a horizontal axis. The linear driving structure 42 includes a driving gear 421 and a driving rack 422 that are meshed with each other. The driving gear 421 and the driving rack 422 are respectively arranged on the driving shaft 41 and the workbench 1. The driving wheel of the driving operating part 43 is connected to the driving shaft 41 to operate the driving shaft 41 to rotate. In this way, the driving shaft 41 is driven to rotate by the driving operating part 43 to drive the driving gear 421 to rotate, and the rotation of the driving shaft 41 is converted into linear motion by the linear driving structure 42, thereby driving the slide 2 to move linearly along the workbench 1.

[0059] Further, generally speaking, in order to facilitate the operation of the operator, the size of the driving operation part 43 is relatively large, which makes it easy for the driving operation part 43 to interfere with the workbench 1. In view of this, in this embodiment, the driving device 4 also includes a driving transmission structure 44, and the driving transmission structure 44 includes an upper transmission gear 441 and a lower transmission gear 442 that mesh with each other. The upper transmission gear 441 is arranged on the slide 2, and the lower transmission gear 442 is arranged on the driving shaft 41. The upper transmission gear 441 and the lower transmission gear 442 are arranged vertically, wherein the driving operation part 43 is arranged on the upper transmission gear 441 to drive the driving shaft 41 to rotate. In this way, by setting the driving transmission structure 44, the driving operation part 43 is moved upward, so as to increase the distance between the driving operation part 43 and the workbench 1, avoid the interference between the driving operation part 43 and the workbench 1, and facilitate the operation of the driving operation part 43. Of course, in other embodiments, the driving operation part 43 can also be directly arranged on the driving shaft 41, and the present invention is not limited to this.

[0060] Since the height of the slide 2 when moving is higher than the height of the slide 2 when fixed, and the driving device 4 is used to drive the slide 2 to move, when the slide 2 is fixed, the height of the slide 2 decreases, which will cause the linear drive structure 42 to be subjected to greater pressure, which may easily cause the linear drive structure 42 to be crushed. For this reason, in this embodiment, please refer to Figure 4 and Figure 5The drive shaft 41 is movably installed on the slide 2 along the left and right directions. Within the movable stroke of the drive shaft 41, the drive shaft 41 has a driving position that enables the drive rack 422 to mesh with the drive gear 421, and an avoidance position that enables the drive gear 421 to separate from the drive rack 422. When the slide 2 needs to be moved, the drive shaft 41 is moved to enable the drive gear 421 to mesh with the drive rack 422 so as to drive the slide 2 to move. When the slide 2 is moved into place, the drive shaft 41 is moved to enable the drive gear 421 to disengage from the drive rack 422 to prevent the linear drive structure 42 from being subjected to pressure, thereby facilitating the protection of the linear drive structure 42.

[0061] Furthermore, the driving device 4 also includes an operating rod 45, a reset spring 46 and a locking bolt 47. The operating rod 45 is movably installed on the slide 2 in the horizontal direction. The operating rod 45 is driven to connect the driving shaft 41 so that the driving shaft 41 moves from the avoidance position to the driving position. The reset spring 46 is sleeved on the operating rod 45 so that the driving shaft 41 is reset from the driving position to the avoidance position. The locking bolt 47 has a relative abutting end and a driving end, the abutting end abuts against the operating rod 45, and the driving end is used to drive the abutting end. The operating rod 45 is locked to the slide 2 at the connecting end. When the slide 2 needs to be moved, the operating rod 45 is operated to move along the axial direction of the driving shaft 41 to drive the driving gear 421 to engage with the driving rack 422, and the operating rod 45 is locked by the locking bolt 47 to move the slide 2. When the slide 2 is moved into place, the locking bolt 47 is loosened, and the reset spring 46 drives the locking bolt 47 to move to drive the driving gear 421 to disengage from the driving rack 422 to prevent the linear drive structure 42 from being subjected to pressure.

[0062] Furthermore, the slide 2 includes a slide body and two mounting sleeves arranged at both ends of the slide body, and the two ends of the drive shaft 41 are slidably installed on the two mounting sleeves along its axial direction. The inner diameter of the mounting sleeve is retracted to form a limiting step surface away from the operating rod 45. The driving device 4 also includes a limiting sleeve arranged on the driving shaft 41, and the limiting sleeve is in contact with the limiting step surface. Such an arrangement can, on the one hand, limit the active stroke of the driving shaft, and on the other hand, position the driving shaft at the driving position so as to move the slide.

[0063] In order to fix the slide 2 to the workbench 1, in this embodiment, the workbench 1 is provided with a slide groove extending in the horizontal direction, the slide 2 is provided with a through hole, and the slide structure 100 also includes a locking structure 5, the locking structure 5 includes a locking block 51 and a locking drive structure 52, the lower end of the locking block 51 is movably installed in the slide groove along the front-back direction, the upper end of the locking block 51 is penetrated through the through hole, and the locking drive structure 52 is arranged at the upper end of the locking block 51 to cooperate with the locking block 51 to lock and fix the slide 2 to the workbench 1. In this way, the locking drive structure 52 and the locking block 51 are used to clamp and fix the slide 2 to the workbench 1 to prevent the slide 2 from moving so as to process the workpiece. It can be understood that the locking drive structure 52 can be an oil cylinder or a pneumatic cylinder.

[0064] It should be noted that the slide groove can be a T-slot or a dovetail groove, etc. Correspondingly, the locking block 51 can be a T-shaped locking block 51 or a dovetail locking block 51, etc., and the present invention is not limited to this.

[0065] In addition, to achieve the above-mentioned purpose, the present invention also provides a machine tool, which includes the above-mentioned slide structure 100. It should be noted that the structure of the slide structure 100 in the machine tool can refer to the embodiment of the above-mentioned slide structure 100, which will not be repeated here; since the above-mentioned slide structure 100 is used in the machine tool provided by the present invention, the embodiment of the machine tool provided by the present invention includes all technical solutions of all embodiments of the above-mentioned slide structure 100, and the technical effects achieved are also exactly the same, which will not be repeated here.

[0066] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A slide structure for a machine tool, It is characterized in that The slide structure comprises: Workbench; a slide table, movably mounted on the workbench in a horizontal direction; and A rolling support structure, comprising a rotating mounting portion provided on the slide, a roller structure being rotatably mounted on the rotating mounting portion, the rotating mounting portion having a rotating mounting axis coaxially rotating with the roller structure, and the height of the rotating mounting axis being adjustable so that the roller structure has a rolling support position and an idle position; When the roller structure is in the rolling support position, the roller structure is supported on the workbench so that the slide is separated from the workbench, and when the roller structure is in the idle position, the slide is pressed against the workbench; The slide structure also includes a driving device, which includes: A driving shaft is rotatably mounted on the slide along a horizontal axis; A linear drive structure, comprising a driving gear and a driving rack meshing with each other, wherein the driving gear and the driving rack are respectively arranged on the driving shaft and the workbench; and A driving operation part, wherein a driving wheel is connected to the driving shaft and is used to operate the driving shaft to rotate; The driving shaft is movably mounted on the slide in the left-right direction. Within the movable stroke of the driving shaft, the driving shaft has a driving position where the driving rack is meshed with the driving gear, and a avoiding position where the driving gear is separated from the driving rack. The driving device further comprises: An operating rod is movably mounted on the slide in a horizontal direction, and the operating rod is drivingly connected to the drive shaft so as to move the drive shaft from the avoidance position to the driving position; a return spring, sleeved on the operating rod, to return the drive shaft from the driving position to the avoidance position; and A locking bolt having an abutting end and a driving end opposite to each other, wherein the abutting end abuts against the operating rod, and the driving end is used to drive the abutting end to lock the operating rod to the slide; The workbench is provided with a slide groove extending in the horizontal direction, and the slide is provided with a through hole; The slide structure further includes a locking structure, which includes: A locking block, the lower end of which is movably mounted on the slide groove in the front-rear direction, and the upper end of which is passed through the through hole; and A locking drive structure, disposed at the upper end of the locking block, to cooperate with the locking block to lock and fix the slide to the workbench; A guide rail is protruding from the upper end of the workbench; Correspondingly, the roller structure includes a V-shaped roller rollingly mounted on the guide rail; The driving device further comprises a driving transmission structure, wherein the driving transmission structure comprises an upper transmission gear and a lower transmission gear meshing with each other, wherein the upper transmission gear is arranged on the slide, and the lower transmission gear is arranged on the driving shaft, and the upper transmission gear and the lower transmission gear are arranged vertically; Wherein, the driving operation part is arranged on the upper transmission gear to drive the driving shaft to rotate; The slide includes a slide body and two mounting sleeves arranged at both ends of the slide body. The two ends of the drive shaft are slidably installed on the two mounting sleeves along its axial direction. The inner diameter of the mounting sleeve is contracted to form a limiting step surface away from the operating rod. The driving device also includes a limiting sleeve arranged on the drive shaft, and the limiting sleeve is in contact with the limiting step surface.

2. The slide structure according to claim 1, It is characterized in that The rolling support structure comprises: Two eccentric shafts are rotatably mounted on the slide; A rotation operation portion, disposed at one end of the eccentric shaft, for operating the eccentric shaft to rotate; and A rotation transmission structure is arranged between the two eccentric shafts to make the two eccentric shafts rotate synchronously; The rotating mounting portion includes two eccentric shafts.

3. The slide structure according to claim 2, It is characterized in that The rotary transmission structure comprises: Two transmission arms, one end of which is respectively mounted on the two eccentric shafts; and, The connecting arm has two ends hinged to the other ends of the two transmission arms.

4. A machine tool, It is characterized in that It comprises a slide structure as described in any one of claims 1 to 3.

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