Head library device and machine tool

Abstract

The utility model relates to the field of machine tools, in particular to a head library device and a machine tool, the head library device comprises a head library support, a milling head support and a limiting component, the limiting component comprises a limiting block, a limiting shaft and a moving block, the limiting block is arranged on the head library support, the limiting shaft is arranged on the limiting block, and the moving block is arranged on the milling head support. In actual use, the milling head support moves on the guide rail, after the limiting shaft is inserted into the limiting hole, the limiting shaft and the limiting hole are matched to limit the milling head support, and the milling head support is prevented from shaking easily.

Description

Technical Field

[0001] The utility model relates to the field of machine tools, in particular to a head library device and a machine tool. Background Art

[0002] The head storage device of the gantry machining center is generally divided into two types: manual and automatic. The traditional manual head storage device usually includes rotational movement and linear movement. The head storage device is rotated from the non-working area to the predetermined working area through a rotating joint to change the head. For example, the Chinese patent CN212600498U rotates the head storage placement group through a rotating axis. This rotating head storage device has a complex structure and is inconvenient to position during the rotation process.

[0003] In addition, the head warehouse device with linear motion refers to Chinese patent CN219324804U, in which the head warehouse bracket can move along the guide rail, overcoming the head warehouse device with rotational motion, but the head warehouse device with linear motion cannot conveniently and effectively limit the head warehouse bracket after movement, which makes the head warehouse bracket unstable after movement. Based on the above problems, the existing head warehouse bracket with linear motion needs to be improved. Utility Model Content

[0004] In order to solve the above problems, the purpose of the present utility model is to provide a head storage device and a machine tool to solve the problem of inconvenient position limitation in the existing linear movable head storage device.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] The utility model provides a head library device, comprising:

[0007] The head warehouse support is provided with a guide rail;

[0008] The milling head bracket can be movably arranged on the guide rail;

[0009] A limiting component is arranged on the head storage bracket, and the limiting component includes a limiting block and a limiting shaft arranged on the limiting block;

[0010] The moving block is arranged on the milling head bracket. The moving block is provided with a limiting hole coaxial with the limiting shaft. The limiting hole cooperates with the limiting shaft to limit the milling head bracket.

[0011] In one embodiment, a steel ball groove is provided on the limiting shaft and surrounds the axis, and the steel ball groove is an inverted trapezoidal structure or an arc structure;

[0012] A steel ball channel for arranging a spring and a steel ball is provided in the limiting hole. The steel ball channel is vertically arranged to the guide rail. When the limiting shaft is inserted in the limiting hole, the spring presses against the steel ball to enter the steel ball groove.

[0013] In one embodiment, the limiting shaft is arranged in a conical shape, and at least a part of the limiting shaft is interference fit with the limiting hole; and / or,

[0014] The limiting block is provided with a first magnetic attraction component, and the moving block is provided with a second magnetic attraction component matched with the first magnetic attraction component.

[0015] In one embodiment, the limit block includes a first limit block and a second limit block which are arranged at intervals; the limit shaft includes a first limit shaft and a second limit shaft, the first limit shaft is arranged on the first limit block, and the second limit shaft is arranged on the second limit block;

[0016] The moving block includes a first moving block and a second moving block which are arranged at intervals. The first moving block and the second moving block are both located between the first limit block and the second limit block. Through the movement of the milling head bracket, the first limit shaft is inserted into the limit hole on the first moving block or the second limit shaft is inserted into the limit hole on the second moving block.

[0017] In one embodiment, the diameter of the steel ball channel on the side close to the limiting hole is smaller than the diameter of the steel ball.

[0018] In one embodiment, the steel ball passages include two passages symmetrically arranged about the axis of the limiting hole.

[0019] In one embodiment, the head library device also includes a detection structure for detecting the position of the milling head bracket, the detection structure includes a first detector and a second detector, the first detector is arranged on the first limit block, and the second detector is arranged on the second limit block.

[0020] In one embodiment, the guide rail includes two parallel and spaced rails, and the limit block is located between the two rails.

[0021] A machine tool comprises a machine tool body and any one of the head storage devices described above, wherein the machine tool body comprises a column, a head storage bracket is arranged on the column, and a guide rail is arranged perpendicular to the vertical direction of the column.

[0022] In one embodiment, a column slide rail is arranged on the column in the vertical direction, and the head storage bracket is slidably arranged on the column slide rail.

[0023] The beneficial effect of the utility model is that a limit block is arranged on the head stock support, a limit shaft is arranged on the limit block, and a moving block is arranged on the milling head support. In actual use, when the milling head support moves on the guide rail, after the limit shaft is inserted into the limit hole, the limit shaft cooperates with the limit hole to limit the milling head support, thereby preventing the milling head support from shaking easily. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0025] Figure 1 It is a structural schematic diagram of the head library device of the utility model;

[0026] Figure 2 It is a structural schematic diagram of the milling head bracket of the utility model;

[0027] Figure 3 It is an enlarged schematic diagram of the head library device of the utility model;

[0028] Figure 4 It is a cross-sectional view of the head library device of the utility model;

[0029] Figure 5 It is a cross-sectional enlarged schematic diagram of the head storage device of the utility model;

[0030] Figure 6 It is a cross-sectional view of the movable block of the utility model;

[0031] Figure 7 It is a schematic diagram of the head storage device of the utility model being installed on a column.

[0032] The accompanying drawings are denoted as follows:

[0033] 1-head warehouse bracket, 11-guide rail;

[0034] 2-Milling head bracket;

[0035] 3-limiting component, 31-limiting block, 311-first limiting block, 312-second limiting block, 32-limiting shaft, 321-first limiting shaft, 322-second limiting shaft, 323-ball groove,

[0036] 4-moving block, 41-first moving block, 42-second moving block, 43-limiting hole, 44-steel ball channel, 45-steel ball mouth,

[0037] 5-spring, 6-steel ball;

[0038] 7-detection structure, 71-first detector, -second detector;

[0039] 8- Pillar. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0041] refer to Figure 1 , Figure 3 and Figure 5 A head warehouse device of an embodiment of the utility model comprises: a head warehouse support 1, a milling head support 2, a limiting component 3 and a moving block 4, wherein the limiting component 3 comprises a limiting block 31, a limiting shaft 32 and a moving block 4. Among them, the head warehouse support 1 is provided with a sliding surface, and a guide rail 11 is provided on the sliding surface; the milling head support 2 can be movably arranged on the guide rail 11; the limiting component 3 is arranged on the sliding surface, and is used to limit the milling head support 2; the moving block 4 is arranged on the milling head support 2, and a limiting hole 43 coaxial with the limiting shaft 32 is arranged on the moving block 4, and the limiting hole 43 cooperates with the limiting shaft 32 to limit the milling head support 2.

[0042] The utility model sets a limit block 31 on the head warehouse bracket 1, sets a limit shaft 32 on the limit block 31, and sets a moving block 4 on the milling head bracket 2. In actual use, the head warehouse bracket 1 can be used to be installed on the column 8, and the milling head bracket 2 moves on the guide rail 11. When the limit shaft 32 is inserted into the limit hole 43, the limit shaft 32 cooperates with the limit hole 43 to limit the milling head bracket 2, thereby preventing the milling head bracket 2 from shaking easily.

[0043] Specifically, the limit shaft 32 is arranged on the limit block 31 and is arranged parallel to the guide rail 11. The limit shaft 32 is provided with a steel ball groove 323 surrounding the axis, and the steel ball groove 323 is an inverted trapezoidal structure or an arc structure; the moving block 4 is arranged on the milling head bracket 2 and is located on one side of the sliding surface. The moving block 4 is provided with a limit hole 43 coaxial with the limit shaft 32, and a steel ball channel 44 for setting the spring 5 and the steel ball 6 is opened in the limit hole 43. The steel ball channel 44 is arranged perpendicular to the guide rail 11. When the limit shaft 32 is inserted in the limit hole 43, the spring 5 presses against the steel ball 6 to the steel ball groove 323.

[0044] The steel ball groove 323 is an inverted trapezoidal structure, that is, the length of the bottom of the steel ball groove 323 is shorter than the groove opening, and the groove corners of the bottom and the groove opening of the steel ball groove 323 are both chamfered to facilitate the smooth rolling of the steel ball 6 in the steel ball groove 323. The steel ball channel 44 passes through the limit block 31 along the vertical direction of the slide rail, referring to Figure 4 and Figure 5, insert the spring 5 and the steel ball 6 into the steel ball channel 44 from the side of the first limit block 311 away from the limit hole 43, and then insert the screw into the steel ball channel 44 to close the steel ball channel 44, so that the spring 5 is located between the steel ball 6 and the screw. When the milling head bracket 2 moves to insert the limit shaft 32 into the limit hole 43, the outer wall of the limit shaft 32 will push against the steel ball 6, so that the steel ball 6 compresses the spring 5 until the steel ball 6 reaches the position of the steel ball groove 323. At this time, the elastic force of the spring 5 will push the steel ball 6 into the steel ball groove 323, so that the steel ball 6 and the steel ball groove 323 play a limiting role with each other, thereby realizing the limiting of the milling head bracket 2. When the milling head bracket 2 moves back, the steel ball 6 will be pushed out of the steel ball groove 323.

[0045] In one embodiment, in addition to limiting the milling head bracket 2 by cooperating between the steel ball 6 and the steel ball groove 323, the limiting shaft 32 can also be set in a conical shape, and the limiting shaft 32 at least partially has an interference fit with the limiting hole 43. In this way, the limiting shaft 32 and the limiting hole 43 form a tight fit, which limits the milling head bracket 2 to a certain extent.

[0046] In addition, a first magnetic component (not shown in the figure) can be set on the limit block 31, and a second magnetic component (not shown in the figure) cooperating with the first magnetic component can be set on the moving block 4. Through the adsorption force of the first magnetic component and the second magnetic component, the limit block 31 is adsorbed and connected with the moving block 4, thereby playing a limiting role on the milling head bracket 2.

[0047] In one embodiment, reference Figure 1 , Figure 2 and Figure 5The limit blocks 31 include two spaced apart, each of which is provided with a limit axis 32, and the two limit blocks 31 are paired with two moving blocks 4. Specifically, the two limit blocks 31 include a first limit block 311 and a second limit block 312, the first limit block 311 and the second limit block 312 are correspondingly arranged at both ends of the length direction of the guide rail 11, the first limit block 311 and the second limit block 312 are located within the travel range of the milling head bracket 2, and the milling head bracket 2 is located between the first limit block 311 and the second limit block 312, the first limit block 311 and the second limit block 312 are used to limit the movement of the milling head bracket 2 on the guide rail 11, for example, when the milling head bracket 2 is moving, the first limit block 311 can prevent the milling head bracket 2 from sliding off the guide rail 11. The limiting shaft 32 includes a first limiting shaft 321 and a second limiting shaft 322. The first limiting shaft 321 and the second limiting shaft 322 have the same structure. The first limiting shaft 321 is arranged on the first limiting block 311, and the second limiting shaft 322 is arranged on the second limiting block 312. The moving block 4 includes a first moving block 41 and a second moving block 42 arranged at intervals. The first moving block 41 and the second moving block 42 are both located between the first limiting block 311 and the second limiting block 312. Through the movement of the milling head bracket 2, the first limiting shaft 321 is inserted into the limiting hole 43 on the first moving block 41 or the second limiting shaft 322 is inserted into the limiting hole 43 on the second moving block 42.

[0048] In actual use, a working area and a non-working area are provided on the head storage bracket 1, the first limit block 311 is located in the working area, and the second limit block 312 is located in the non-working area. When the milling head bracket 2 is not working, the milling head bracket 2 is limited in the non-working area by the second limit block 312. When the milling head bracket 2 is required to work, the milling head bracket 2 is pushed until the milling head bracket 2 moves to the working area, and then the milling head bracket 2 is limited by the limit component 3 on the first limit block 311. For example, the milling head bracket 2 is pushed to move toward the side of the first limit block 311, so that the first limit shaft 321 is inserted into the limit hole 43 on the first moving block 41. Since the shaft wall of the first limit shaft 321 will press against the steel ball 6, the steel ball 6 moves away from the limit hole 43. In this process, the steel ball 6 will compress the spring 5. When the first limiting shaft 321 moves to align the steel ball 6 with the steel ball groove 323 , the steel ball 6 loses the squeezing of the first limiting shaft 321 , so that the steel ball 6 falls into the steel ball groove 323 , and the first limiting shaft 321 cannot move easily anymore, thereby limiting the first moving block 41 .

[0049] When the milling head bracket 2 moves to the non-working area, the second limiting shaft 322 is inserted into the upper limiting hole 43 of the second moving block 42, and then the steel ball 6 in the steel ball channel 44 will limit the second moving block 42. The principle is the same as the limiting principle of the first limiting shaft 321 on the first moving block 41, which will not be repeated here.

[0050] In one embodiment, reference Figure 5 and Figure 6 , the diameter of the steel ball channel 44 on the side of the limiting hole 43 is smaller than the diameter of the steel ball 6. Specifically, the steel ball channel 44 is a cylinder, and the steel ball 6 and the spring 5 can be directly connected. At this time, the spring 5 will pull the steel ball 6 so that the steel ball 6 will not fall out of the steel ball channel 44. In addition, the opening (steel ball opening 45) of the steel ball channel 44 on the side of the limiting hole 43 is set to have a diameter smaller than the diameter of the steel ball 6. Since the diameter of the steel ball 6 is slightly larger than the steel ball opening 45, the steel ball 6 cannot fall out of the steel ball channel 44. When the steel ball 6 is aligned with the steel ball groove 323, only part of the steel ball 6 enters the steel ball groove 323. This design method does not require the spring 5 to be directly connected to the steel ball 6, and is easy to use.

[0051] In one embodiment, reference Figure 5 and Figure 6 The steel ball passages 44 include two symmetrically arranged about the axis of the limiting hole 43. When the steel ball 6 on the moving block 4 is aligned with the steel ball groove 323 on the limiting shaft 32, the steel balls 6 in the two steel ball passages 44 enter the steel ball groove 323, and the limiting shaft 32 and the moving block 4 are limited from both the upper and lower directions, so that the upper and lower forces are symmetrical and uniform during the limiting force process, so as to play a better limiting role.

[0052] In one embodiment, reference Figure 1 and Figure 2 The head storage device also includes a detection structure 7 for detecting the position of the milling head bracket 2. Through the detection structure 7, it can be detected whether the milling head bracket 2 is currently in the working area or the non-working area. The detection structure 7 is set on the limit block 31. When the milling head bracket 2 moves to the appropriate position in the working area, the detection structure 7 will detect the milling head bracket 2 and send a notification signal to inform the operator that the milling head bracket 2 is in place and the next step can be carried out normally.

[0053] Furthermore, the detection structure 7 includes a first detector 71 and a second detector 72, wherein the first detector 71 is disposed on the first limit block 311, and the second detector 72 is disposed on the second limit block 312. When the milling head bracket 2 moves to the working area, the first detector 71 will detect that the milling head bracket 2 is located in the working area, and vice versa, when the milling head bracket 2 moves to the non-working area, the second detector 72 will detect that the milling head bracket 2 is located in the non-working area.

[0054] The first detector 71 and the second detector 72 are integrated on the corresponding limit block 31 to save installation space and facilitate detection of the milling head bracket 2. When the milling head bracket 2 moves to the working area, the first detector 71 detects the milling head bracket 2 and sends a notification signal. When the milling head bracket 2 moves back to the non-working area, the second detector 72 can detect the milling head bracket 22 and send a notification signal.

[0055] In one embodiment, reference Figure 1 and Figure 2 The guide rail 11 includes two parallel and spaced rails, and the limiting component 3 is located between the two rails. The guide rail 11 is a convex rail set on the head storage bracket 1, and a concave block matching the convex rail is set on the milling head bracket 2. The milling head bracket 2 is connected by the concave rail and the convex rail, and the milling head bracket 2 slides on the guide rail 11. The limiting block 31 is set between the two rails, which can save space and have a good limiting effect on the milling head bracket 2.

[0056] In another embodiment, the utility model provides a machine tool, including a machine tool body and any one of the head storage devices described above, wherein the machine tool body includes a column 8, a head storage bracket 1 is arranged on the column 8, and a guide rail 11 is arranged perpendicular to the vertical direction of the column 8. The use of the utility model does not require the head storage bracket 1 to be rotated, and avoids the space required for the rotation of the rotating head storage bracket 1. In addition, the head storage device described above facilitates operation and limiting of the head storage bracket 1.

[0057] In one embodiment, a column 8 slide rail is arranged in the vertical direction on the column 8, and the head warehouse bracket 1 is slidably arranged on the column 8 slide rail. When the position of the head warehouse device on the column 8 needs to be adjusted, the head warehouse device is pushed up or down along the column 8 slide rail.

[0058] Furthermore, the slide rail of the column 8 can be arranged on the side of the column 8 or at the corners of the column 8.

[0059] The above are only preferred implementations of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A head library device, characterized in that: include: A head storage support (1) is provided with a guide rail (11); A milling head bracket (2) is movably arranged on the guide rail (11); A limiting component (3) is arranged on the head storage bracket (1), and the limiting component (3) comprises a limiting block (31) and a limiting shaft (32) arranged on the limiting block (31); A moving block (4) is arranged on the milling head bracket (2); a limiting hole (43) coaxial with the limiting shaft (32) is arranged on the moving block (4); the limiting hole (43) cooperates with the limiting shaft (32) to limit the milling head bracket (2).

2. The head library device according to claim 1, characterized in that: The limiting shaft (32) is provided with a steel ball groove (323) surrounding the axis, and the steel ball groove (323) is an inverted trapezoidal structure or an arc structure; A steel ball channel (44) for arranging a spring (5) and a steel ball (6) is provided in the limiting hole (43); the steel ball channel (44) is arranged perpendicular to the guide rail (11); when the limiting shaft (32) is inserted into the limiting hole (43), the spring (5) presses against the steel ball (6) to enter the steel ball groove (323).

3. The head library device according to claim 1, characterized in that: The limiting shaft (32) is arranged in a conical shape, and at least a part of the limiting shaft (32) is interference-fitted with the limiting hole (43); and / or, The limiting block (31) is provided with a first magnetic attraction component, and the moving block (4) is provided with a second magnetic attraction component that cooperates with the first magnetic attraction component.

4. The head library device according to claim 2, characterized in that: The limit block (31) comprises a first limit block (311) and a second limit block (312) which are arranged at intervals; the limit shaft (32) comprises a first limit shaft (321) and a second limit shaft (322), the first limit shaft (321) being arranged on the first limit block (311), and the second limit shaft (322) being arranged on the second limit block (312); The moving block (4) comprises a first moving block (41) and a second moving block (42) which are arranged at an interval, and the first moving block (41) and the second moving block (42) are both located between the first limiting block (311) and the second limiting block (312). Through the movement of the milling head bracket (2), the first limiting shaft (321) is inserted into the limiting hole (43) on the first moving block (41) or the second limiting shaft (322) is inserted into the limiting hole (43) on the second moving block (42).

5. The head library device according to claim 4, characterized in that: The diameter of the steel ball channel (44) on the side close to the limiting hole (43) is smaller than the diameter of the steel ball (6).

6. The head library device according to claim 5, characterized in that: The steel ball passage (44) comprises two passages which are symmetrically arranged about the axis of the limiting hole (43).

7. The head library device according to any one of claims 4 to 6, characterized in that: The head library device also includes a detection structure (7) for detecting the position of the milling head bracket (2), and the detection structure (7) includes a first detector (71) and a second detector (72), wherein the first detector (71) is arranged on the first limit block (311), and the second detector (72) is arranged on the second limit block (312).

8. The head library device according to any one of claims 1 to 6, characterized in that: The guide rail (11) comprises two parallel rails that are spaced apart from each other, and the limit block (31) is located between the two rails.

9. A machine tool, characterized in that: It comprises a machine tool body and a head library device as described in any one of claims 1 to 8, wherein the machine tool body comprises a column (8), the head library support (1) is arranged on the column (8), and the guide rail (11) is arranged perpendicular to the vertical direction of the column (8).

10. The machine tool according to claim 9, characterized in that A column (8) slide rail is arranged in the vertical direction on the column (8), and the head storage bracket (1) is slidably arranged on the column (8) slide rail.

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