Spindle multi-track limiting mechanism

Abstract

The utility model relates to lathe machining technical field, specifically disclose a main shaft multi track limiting mechanism, including saddle and fixed base, the saddle and fixed base between forming installation space, the installation space is provided with the main shaft box of installation main shaft body, be provided with the guide fastening mechanism between main shaft box and saddle, be used for adjusting the position between main shaft box and saddle. In the process of using, set up the multi track guide fastening mechanism of slide rail and slider between main shaft box and saddle, can effectively enhance the support rigidity and stability of Z axis direction, solved the problem of the insufficient support of traditional two line rail structure because of the heavy weight of main shaft head, long stroke. And the synergies of abutting block, extrusion part and positioning piece, realized the high accuracy of multi track alignment and reliable limiting, not only improved the torsional resistance and bearing capacity of overall structure, also significantly reduced the installation and debugging difficulty because of the increase of track number.

Description

Technical Field

[0001] This utility model relates to the field of machine tool processing technology, specifically to a multi-track limiting mechanism for a spindle. Background Technology

[0002] A gantry machining center is a large, high-precision, and high-efficiency CNC machine tool. Its most prominent feature is the adoption of a "gantry frame" structure, which consists of a crossbeam and two columns forming a rigid frame similar to a "gate". The spindle head (tool magazine) moves on the crossbeam (usually in the Y-axis direction), while the worktable usually only moves in the X-axis direction or is fixed to place large workpieces.

[0003] When a gantry machining center is equipped with a spindle head, the Z-axis becomes heavier and has a longer travel, making the original two-line guide structure insufficient for support. A four-line guide design can be used for the Z-axis. However, due to space constraints with four guides, installation and debugging become difficult, resulting in certain shortcomings. Utility Model Content

[0004] The purpose of this invention is to provide a multi-track limiting mechanism for a main shaft to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-track limiting mechanism for a spindle, including a saddle and a fixed seat, wherein an installation space is formed between the saddle and the fixed seat, and a spindle box for mounting the spindle body is provided in the installation space, and a guide fastening mechanism is provided between the spindle box and the saddle for adjusting the position between the spindle box and the saddle.

[0006] Furthermore, the guide fastening mechanism includes a track component fixedly connected to the spindle box, and a slider component adapted to the track component is provided on the saddle, the slider component engaging with the track component.

[0007] Furthermore, the track component includes multiple slide rails fixedly connected to the spindle box, and the multiple slide rails are symmetrically arranged on both sides of the spindle box.

[0008] Furthermore, the slider component includes a plurality of first sliders and a plurality of second sliders, and the plurality of first sliders and the plurality of second sliders are arranged symmetrically on the inner side of the saddle.

[0009] Furthermore, a support block is fixedly connected to one side of the saddle via a fastener.

[0010] Furthermore, a pressing part is provided between the bearing block and the plurality of first sliders respectively.

[0011] Furthermore, the extrusion section includes a first gasket and a second gasket, which are installed between two of the first sliders and the saddle; and the extrusion section also includes a third gasket and a fourth gasket, which are disposed between the other two first sliders and the saddle.

[0012] Furthermore, a positioning element is provided between the saddle and the compression part; the positioning element includes a first pressing block, which is disposed between the first gasket, the second gasket and the saddle, for pressing the first gasket and the second gasket together; the positioning element also includes a second pressing block and a third pressing block, the second pressing block is installed between the top third gasket and the fourth gasket, for fixing the top third gasket and the fourth gasket; the third pressing block is installed between the bottom third gasket and the fourth gasket, for fixing the bottom third gasket and the fourth gasket.

[0013] Furthermore, a fourth pressure block is provided between each of the second sliders and the saddle.

[0014] Furthermore, the first gasket, the second gasket, the third gasket, and the fourth gasket are all provided with inclined grooves.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the multi-track limiting mechanism of the spindle, through the cooperation between the saddle, the fixed seat, the spindle box and the guide fastening mechanism, etc., during use, the multi-track guide fastening mechanism composed of slide rail and slider is set between the spindle box and the saddle, which can effectively enhance the support rigidity and stability in the Z-axis direction, and solve the problem of insufficient support caused by the large weight and long stroke of the spindle head in the traditional two-track structure.

[0016] Furthermore, by symmetrically arranging multiple slide rails and sliders, and combining the synergistic effect of the bearing block, the pressing part and the positioning part, high-precision alignment and reliable limiting of multiple rails are achieved. This not only improves the torsional resistance and load-bearing capacity of the overall structure, but also significantly reduces the installation and debugging difficulty caused by the increased number of rails.

[0017] Furthermore, the tilting grooves on multiple shims further optimize the fine-tuning capability during installation, ensuring the parallelism and fitting accuracy between each track, thereby improving assembly efficiency and reliability while guaranteeing high-precision machining of the machine tool. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model; Figure 2 This is a schematic diagram of the overall structure from another perspective, provided for an embodiment of the present utility model. Figure 3 A front view provided for an embodiment of this utility model; Figure 4 A top view provided for an embodiment of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Saddle; 2. Fixed seat; 3. Spindle box; 4. Spindle body; 5. Slide rail; 6. First slider; 61. Second slider; 7. First pressure block; 8. Second pressure block; 9. Third pressure block; 10. Fourth pressure block; 11. First shim; 12. Second shim; 13. Third shim; 14. Fourth shim; 15. Support block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4 This utility model provides a technical solution: a multi-track limiting mechanism for a spindle, including a saddle 1 and a fixed seat 2. An installation space is formed between the saddle 1 and the fixed seat 2. A spindle box 3 for mounting the spindle body 4 is provided in the installation space. A guide fastening mechanism is provided between the spindle box 3 and the saddle 1 for adjusting the position between the spindle box 3 and the saddle 1.

[0023] Specifically, this multi-track limiting mechanism for the spindle forms an installation space between the saddle 1 and the fixed seat 2. The spindle box 3 is installed within this space and supports the spindle body 4. A guide and fastening mechanism is located between the spindle box 3 and the saddle 1 to adjust their relative positions, enabling precise positioning and movement of the spindle in multiple directions. During this process, the installation space formed by the saddle 1 and the fixed seat 2, along with the guide and fastening mechanism, ensures stable support and precise positioning of the spindle box 3 in multiple track directions. This effectively improves the rigidity and motion accuracy of the spindle during machining, making it suitable for high-load, long-stroke machining scenarios and solving the problem of insufficient support in traditional two-track structures.

[0024] In the embodiments provided by this utility model, the guide fastening mechanism includes a track component fixedly connected to the spindle box 3, and a slider component adapted to the track component is provided on the saddle 1. The slider component is engaged with the track component so that the spindle box 3 can slide smoothly along the direction of the track component to achieve precise position adjustment.

[0025] In the embodiments provided by this utility model, the track component includes multiple slide rails 5 fixedly connected to the spindle box 3, and the multiple slide rails 5 are symmetrically arranged on both sides of the spindle box 3. Specifically, there are four slide rails 5, which significantly improves the rigidity and stability of the system and reduces track wear and deformation caused by off-center loading.

[0026] In the embodiments provided by this utility model, the slider component includes multiple first sliders 6 and multiple second sliders 61, and the multiple first sliders 6 and multiple second sliders 61 are symmetrically arranged inside the saddle 1. More specifically, the number of first sliders 6 and second sliders 61 is four, that is, two first sliders 6 or two second sliders 61 are engaged on each slide rail 5, which realizes multi-point support and uniform force distribution for the spindle box 3, resulting in better performance.

[0027] In the embodiments provided by this utility model, a support block 15 is fixedly connected to one side of the saddle 1 by a fastener to provide additional support points and enhance the rigidity of the overall structure. The fastener can be a pin or the like. If the support block 15 and the fixed seat 2 are integrally cast, it would be very difficult to process. Therefore, they are manufactured separately and then fixed together by a fastener to improve installation efficiency.

[0028] In the embodiments provided by this utility model, a pressing part is provided between the support block 15 and the multiple first sliders 6. The pre-pressure adjustment between the slider and the saddle 1 is achieved through the structure such as the gasket, ensuring a tight fit. The setting of the pressing part makes the gap between the slider and the saddle 1 adjustable, which can realize the pre-pressing function.

[0029] In the embodiments provided by this utility model, the extrusion part includes a first gasket 11 and a second gasket 12, which are installed between two of the first sliders 6 and the saddle 1. Specifically, the two first sliders 6 are the two sliders 6 away from the fixed seat 2. The extrusion part also includes a third gasket 13 and a fourth gasket 14, which are disposed between the other two first sliders 6 and the saddle 1. More specifically, the first sliders 6 are the two sliders 6 closer to the fixed seat 2. The functions of the first gasket 11 and the second gasket 12, and the third gasket 13 and the fourth gasket 14, are to improve assembly accuracy and adaptability. Specifically, due to insufficient installation space, the installation methods of the third gasket 13 and the fourth gasket 14 are different from those of the first gasket 11 and the second gasket 12. The third gasket 13 and the fourth gasket 14 adopt the principle of vertical pressing, while the first gasket 11 and the second gasket 12 adopt the principle of horizontal pressing. This achieves the same pressing effect while facilitating installation and debugging.

[0030] In the embodiments provided by this utility model, a positioning component is further provided between the saddle 1 and the pressing part; the positioning component includes a first pressing block 7, which is disposed between the first gasket 11, the second gasket 12 and the saddle 1, and is used to press the first gasket 11 and the second gasket 12 tightly. The positioning component also includes a second pressing block 8 and a third pressing block 9. Specifically, there are two sets of third gaskets 13 and fourth gaskets 14, located on the upper and lower sides of the saddle 1 respectively. In actual operation, the second pressing block 8 is installed between the upper third gaskets 13 and fourth gaskets 14 to fix the upper third gaskets 13 and fourth gaskets 14. The third pressing block 9 is installed between the bottom third gaskets 13 and fourth gaskets 14 to fix the bottom third gaskets 13 and fourth gaskets 14. The first pressing block 7, the second pressing block 8 and the third pressing block 9 in the positioning component have the same function, which can effectively fix the positions of different gaskets and prevent the corresponding gaskets from loosening due to vibration or load changes, which will not be described in detail here.

[0031] In the embodiments provided by this utility model, a fourth pressure block 10 is provided between each second slider 61 and the saddle 1, which further reduces vibration and offset during the movement process.

[0032] In the embodiments provided by this utility model, the first gasket 11, the second gasket 12, the third gasket 13, and the fourth gasket 14 are all provided with inclined grooves. By setting multiple gaskets in an inclined shape, the displacement of the gaskets is guided during the pressing process, so as to achieve a more uniform force distribution and improve the accuracy and efficiency of pre-pressure adjustment.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-track limiting mechanism for a main shaft, comprising a saddle (1) and a fixed seat (2), wherein an installation space is formed between the saddle (1) and the fixed seat (2), characterized in that: The saddle (1) space is provided with a spindle box (3) for mounting the spindle body (4); A guide fastening mechanism is provided between the spindle box (3) and the saddle (1) for adjusting the position between the spindle box (3) and the saddle (1).

2. The multi-track limiting mechanism for a main shaft according to claim 1, characterized in that: The guide fastening mechanism includes a track component fixedly connected to the spindle box (3), and a slider component adapted to the track component is provided on the saddle (1), the slider component being engaged with the track component.

3. The multi-track limiting mechanism for a main spindle according to claim 2, characterized in that: The track component includes multiple slide rails (5) fixedly connected to the spindle box (3), and the multiple slide rails (5) are arranged symmetrically on both sides of the spindle box (3).

4. The multi-track limiting mechanism for a main spindle according to claim 3, characterized in that: The slider component includes multiple first sliders (6) and multiple second sliders (61), and the multiple first sliders (6) and multiple second sliders (61) are arranged symmetrically on the inner side of the saddle (1).

5. A multi-track limiting mechanism for a main shaft according to claim 4, characterized in that: A support block (15) is fixedly connected to one side of the saddle (1) by a fastener.

6. The multi-track limiting mechanism for a main shaft according to claim 5, characterized in that: A pressing part is provided between the bearing block (15) and the plurality of first sliders (6).

7. A multi-track limiting mechanism for a main spindle according to claim 6, characterized in that: The extrusion section includes a first gasket (11) and a second gasket (12), which are installed between two of the first sliders (6) and the saddle (1); The extrusion section also includes a third gasket (13) and a fourth gasket (14), which are disposed between the other two first sliders (6) and the saddle (1).

8. A multi-track limiting mechanism for a main spindle according to claim 7, characterized in that: A positioning element is also provided between the saddle (1) and the extrusion part; The positioning component includes a first pressure block (7), which is disposed between the first gasket (11), the second gasket (12) and the saddle (1) to press the first gasket (11) and the second gasket (12) together; The positioning component also includes a second pressure block (8) and a third pressure block (9). The second pressure block (8) is installed between the third gasket (13) and the fourth gasket (14) at the top, and is used to fix the third gasket (13) and the fourth gasket (14) at the top. The third pressure block (9) is installed between the third gasket (13) and the fourth gasket (14) at the bottom to fix the third gasket (13) and the fourth gasket (14) at the bottom.

9. A multi-track limiting mechanism for a main spindle according to claim 4, characterized in that: A fourth pressure block (10) is provided between each of the second sliders (61) and the saddle (1).

10. A multi-track limiting mechanism for a main shaft according to claim 7, characterized in that: The first gasket (11), the second gasket (12), the third gasket (13), and the fourth gasket (14) are all provided with inclined grooves.

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