Three-guide-rail spindle box crown block structure

Abstract

The invention discloses a three-guide-rail headstock crown block structure, and relates to the technical field of numerical control machine tool machining, the three-guide-rail headstock crown block structure comprises a saddle and a headstock, a sliding block is fixed on the saddle, a sliding rail is fixed on the headstock, a movable section is arranged on the sliding block, the movable section is rotatably connected to the sliding block, and the sliding rail is fixed on the saddle. The movable section has a first state perpendicular to the sliding block to bear the sliding rail and a second state attached to the outer wall of the sliding rail after bearing the sliding rail. According to the three-guide-rail headstock crown block structure, the sliding rail can abut against the movable section in the first state when being inserted into the sliding groove and force the movable section to rotate towards the second state, in the process, the movable section can force the edge of the end of the sliding rail to move to the edge of the sliding groove, and then the sliding rail is guided to be inserted into the sliding groove; therefore, the installation difficulty between the sliding block and the sliding rail is reduced. The movable section is attached to the outer wall of the sliding rail after being switched to the second state, and therefore the rigidity of the spindle box can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of numerical control machine tool processing, and in particular to a three-guideway spindle box crane structure. Background Art

[0002] The overhead crane type gantry and cradle five-axis machine is a high-precision CNC machining equipment, which is widely used in aerospace, automobile manufacturing, mold processing and other fields. Its main feature is that it can perform complex processing in multiple axis directions, providing high efficiency and high precision processing capabilities.

[0003] For example, the patent document entitled "A five-axis machine tool with more flexible chip removal" with the authorization announcement number CN220971642U and the authorization announcement date May 17, 2024, includes a bed and a column, the top of the bed is fixedly connected to the column, and the top of the column is movably connected to the crossbeam. This device solves the problem of on-site machine tool arrangement, especially when the factory space is small, and the flexible arrangement method can make the machine tool more practical.

[0004] In the prior art, a plurality of sets of sliders and slide rail structures are provided on a five-axis machine tool, wherein the sliders and slide rails need to be aligned and relatively moved axially during installation. Obviously, the installation of the plurality of sliders on a five-axis machine tool is relatively complicated. Summary of the invention

[0005] The purpose of the present invention is to provide a three-guideway spindle box crane structure to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A three-guide rail spindle box crane structure comprises a saddle and a spindle box, a slider is fixed on the saddle, a slide rail is fixed on the spindle box, and the slider is provided with:

[0008] The movable section is rotatably connected to the sliding block, and the movable section has a first state in which the sliding block is vertical to receive the sliding rail, and a second state in which the movable section is in contact with the outer wall of the sliding rail after receiving the sliding rail.

[0009] In the above-mentioned three-guide rail spindle box overhead crane structure, slide rails are fixed on the three sides of the spindle box, and six sliding blocks are correspondingly arranged on the saddle.

[0010] In the above three-guideway spindle box crane structure, a torsion spring is arranged between the movable section and the slider.

[0011] In the above-mentioned three-guideway spindle box overhead crane structure, a lubrication mechanism is provided on the movable section.

[0012] In the above-mentioned three-guideway spindle box overhead crane structure, the movable section includes a connecting part rotatably connected to the slider and a lubricating part slidably connected to the connecting part, and two separation parts are slidably connected to the connecting part.

[0013] In the above-mentioned three-guide rail spindle box crane structure, when the lubrication part fits the connecting part, the two separation parts are close to each other and fit on the side of the lubrication part away from the connecting part, so as to support the slide rail through the two separation parts; when the movable section fits the slide rail, the two separation parts are away from each other, and the lubrication part is away from the connecting part, so as to fit the slide rail through the lubrication part and the two separation parts.

[0014] In the above three-guideway spindle box crane structure, a first elastic member is arranged between the connecting portion and the lubrication portion.

[0015] In the above-mentioned three-guideway spindle box crane structure, a movable groove is constructed on the connecting part, an L-shaped rod is fixed on the separating part, and one end of the L-shaped rod is slidably connected in the movable groove.

[0016] In the above-mentioned three-guide rail spindle box crane structure, a second elastic member for forcing the L-shaped rod to be retracted into the movable groove is arranged in the movable groove, a wedge-shaped portion is constructed on the L-shaped rod, a driving member is slidably connected to the sliding block, a wedge-shaped surface is constructed on the driving member, and a through groove connected to the movable groove is constructed on the connecting portion. When the movable section is in the second state, the driving member can be inserted into the through groove to force the L-shaped rod to extend out of the movable groove through the wedge-shaped portion and the wedge-shaped surface.

[0017] In the above-mentioned three-guideway spindle box crane structure, the through groove penetrates the connecting part. After the driving member forces the L-shaped rod to extend out of the movable groove to misalign the two separation parts and the lubrication part, the side wall of the driving member contacts the wedge-shaped part and the end contact the lubrication part, so that the driving member can force the lubrication part to move away from the connecting part when it penetrates into the through groove.

[0018] In the above technical scheme, the present invention provides a three-guide rail spindle box crane structure, when the slide rail is inserted into the slide groove, it will interfere with the movable section in the first state and force the movable section to rotate to the second state. During the process, the movable section can force the edge of the slide rail end to move to the edge of the slide groove, and then guide the slide rail to be inserted into the slide groove, thereby reducing the difficulty of installation between the slider and the slide rail; the movable section fits with the outer wall of the slide rail after switching to the second state, so that multiple movable sections can act as extensions of the slider to improve the stability of the connection between the slide rail and the slider, and further improve the rigidity of the spindle box. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0021] Figure 2 A top view provided for an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of the structure of the first state of the active segment provided by yet another embodiment of the present invention;

[0023] Figure 4 A schematic diagram of the structure of the second state of the movable segment provided by another embodiment of the present invention;

[0024] Figure 5 A schematic diagram of the structure of the first state of the active segment provided by another embodiment of the present invention;

[0025] Figure 6 A schematic diagram of the structure of the second state of the active segment provided by another embodiment of the present invention;

[0026] Figure 7 A schematic diagram of a support structure provided by another embodiment of the present invention;

[0027] Figure 8 A schematic diagram of a lubrication mechanism provided by another embodiment of the present invention;

[0028] Fig. 9 A schematic diagram of the structure inside the movable slot provided in yet another embodiment of the present invention;

[0029] Fig.10 A schematic diagram of the wedge-shaped portion structure provided in yet another embodiment of the present invention;

[0030] Fig.11 A schematic diagram of a wedge-shaped surface structure provided by another embodiment of the present invention;

[0031] Fig.12 A schematic diagram of the structure of a trigger unit provided by another embodiment of the present invention;

[0032] Fig.13 A schematic diagram of a baffle structure provided in yet another embodiment of the present invention.

[0033] Description of reference numerals:

[0034] 1. Saddle; 2. Spindle box; 3. Sliding block; 4. Slide rail; 5. Movable section; 6. Block; 7. Lubricating mechanism; 8. Connecting part; 9. Lubricating part; 10. Separating part; 11. Bracket; 12. First elastic member; 13. Movable groove; 14. L-shaped rod; 15. Second elastic member; 16. Wedge-shaped part; 17. Driving member; 18. Wedge-shaped surface; 19. Through groove; 20. Sliding part; 21. Sliding rod; 22. Baffle; 23. Third elastic member; 24. Triggering part; 25. Slot. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0036] Reference Figure 1-13 An embodiment of the present invention provides a three-guide rail spindle box crane structure, including a saddle 1 and a spindle box 2, a slider 3 is fixed on the saddle 1, a slide rail 4 is fixed on the spindle box 2, a movable section 5 is provided on the slider 3, and the movable section 5 is rotatably connected to the slider 3. The movable section 5 has a first state in which the slider 3 is vertical to receive the slide rail 4 and a second state in which the slide rail 4 is received and then fits with the outer wall of the slide rail 4.

[0037] Specifically, the cradle five-axis machine is also called a five-axis machining center. It is a machining center with high technological content, high precision, and is specially used for machining complex curved surfaces. It has the characteristics of high efficiency and high precision. The crane-type gantry refers to a crane-type gantry structure provided on the cradle five-axis machine. The spindle box 2 of the cradle five-axis machine is arranged on the gantry structure, so that the workpiece clamped on the machine tool can be processed by the tool on the spindle box 2. The cradle five-axis machine is provided with multiple groups of sliders 3 and slide rails 4 structures. Generally, one slider 3 is slidably arranged on one slide rail 4, and two sliders 3 can also be slidably arranged. Multiple slide rails 4 can be fixed on the spindle box 2, and correspondingly, multiple sliders 3 can be fixed on the saddle 1, so that the spindle box 2 can stably slide along the Z axis on the saddle 1. Corresponding slide rail 4 structures can also be arranged between the saddle 1 and the gantry structure and between the gantry structure and the main body of the cradle five-axis machine, so that the spindle box 2 can move in multiple directions. The above are all existing technologies and will not be repeated here. The innovation of the embodiment of the present invention is that a slide groove adapted to the slide rail 4 is constructed on the slider 3 along its axial direction, and the slide rail 4 is slidably connected in the slide groove; the movable section 5 is rotatably connected to the slider 3, and has a first state perpendicular to the slider 3 (such as Figure 3 ) and a second state parallel to the slider 3 to form an extension of the slider 3 (as shown Figure 4As shown in the figure, a rotating structure (such as a motor) can be provided on the slider 3 to force the movable segment 5 to rotate between the first state and the second state; multiple movable segments 5 can be provided on the slider 3, and multiple movable segments 5 can be in the second state at the same time to constitute multiple extensions of the slider 3 to extend the length of the slider 3 in a changing direction; when the movable segment 5 is in the second state, one end thereof fits with the end of the slider 3, and when the movable segment 5 is in the first state, one end thereof is on the extension part of the axis of the slide slot, so that the slide rail 4 will contact the movable segment 5 in the first state during the insertion into the slide slot; if multiple movable segments are provided on the slider 3 5, the slide rail 4 can simultaneously force multiple active segments 5 in the first state to switch to the second state. During the process, the multiple active segments 5 can force the edge of the end of the slide rail 4 to move to the edge of the slide groove, and then guide the slide rail 4 to be inserted into the slide groove, thereby reducing the difficulty of installation between the slider 3 and the slide rail 4; after switching to the second state, the multiple active segments 5 are simultaneously fitted with the outer wall of the slide rail 4, so that the multiple active segments 5 can act as an extension of the slider 3 to improve the stability of the connection between the slide rail 4 and the slider 3, and further improve the rigidity of the spindle box 2 (try to avoid the spindle box 2 and the slide rail 4 from shaking on the saddle 1).

[0038] In another embodiment provided by the present invention, further, slide rails 4 are fixed on the three side surfaces of the spindle box 2, and six sliders 3 are correspondingly arranged on the saddle 1. Specifically, one slide rail 4 on the spindle box 2 is slidably connected with two sliders 3 on the saddle 1 at the same time, so as to improve the stability of the spindle box 2; in the prior art, two slide rails 4 are generally arranged between the spindle box 2 and the saddle 1, and the two slide rails 4 are concentrated on the side of the spindle box 2 close to the saddle 1, and the driving screw of the spindle box 2 is generally arranged on the side of the spindle box 2 close to the saddle 1. Such an arrangement makes the rigidity of the spindle box 2 weak, and the spindle center line (the force center of the tool on the spindle box 2 during cutting) is relatively far away from the Z-axis center and the X-axis center (the driving force center during cutting), and during the cutting movement. , the vibration amplitude of the tool on the spindle box 2 is too large; in this embodiment, three slide rails 4 are arranged on the spindle box 2, and the three slide rails 4 are respectively arranged on three sides of the spindle box 2 (a side close to the saddle 1 and two side surfaces adjacent to the side), and at the same time, the driving screw of the spindle box 2 is deflected 45 degrees from the position of the spindle box 2 close to the saddle 1, so that the driving screw of the spindle box 2 is located between two adjacent slide rails 4, thereby reducing the distance between the spindle center and the Z-axis center and the X-axis center, and the structure is more compact, thereby increasing the rigidity of the spindle box 2 and minimizing the amplitude of the tool on the spindle box 2.

[0039] Furthermore, a torsion spring (not shown) is provided between the movable segment 5 and the slider 3. Specifically, in the above embodiment, a rotating structure needs to be provided on the movable segment 5 to drive the movable segment 5 to rotate on the slider 3. In this embodiment, a stopper 6 is provided on the slider 3, and the torsion spring can force the movable segment 5 to rotate to the first state and abut against the stopper 6; when the end of the slide rail 4 abuts against the movable segment 5 in the first state, the movable segment 5 can overcome the elastic force of the torsion spring and rotate to the second state. The advantage of such a setting is that the torsion spring makes the movable segment 5 in the first state under normal conditions, and passively switches to the second state when it is abutted by the slide rail 4.

[0040] Preferably, a lubrication mechanism 7 is provided on the movable section 5. When the movable section 5 is in the second state, the side wall of the movable section 5 contacts the outer side of the slide rail 4. In order to reduce the friction between the two, the lubrication mechanism 7 is provided on the side wall of the movable section 5. The lubrication mechanism 7 can be a ball lubrication mechanism 7 in the prior art (this is the prior art and will not be described here), so that the slide rail 4 can drive the balls to rotate when it moves relative to the slider 3, thereby reducing the friction, and lubricating oil can be filled between a plurality of balls to further reduce the friction between the movable section 5 and the slide rail 4.

[0041] In the above-mentioned embodiment, the movable section 5 adopts an integral structure. In another embodiment provided by the present invention, the movable section 5 adopts a split structure. Further, the movable section 5 includes a connecting portion 8 rotatably connected to the slider 3 and a lubricating portion 9 slidably connected to the connecting portion 8. The connecting portion 8 also has two separating portions 10 slidably connected. Specifically, a bracket 11 is constructed on the slider 3, the block 6 is constructed on the bracket 11, the connecting portion 8 is rotatably connected to the bracket 11, the lubricating portion 9 is slidably connected to the side of the connecting portion 8 away from the bracket 11 (slidingly arranged along the width direction of the connecting portion 8), and the lubricating mechanism 7 is arranged on the lubricating portion 9 (a circulation channel is constructed on the side of the lubricating portion 9 away from the connecting portion 8, and a plurality of balls are arranged in the circulation channel. The friction can be reduced by the plurality of balls contacting the outer wall of the slide rail 4, such as Figure 8 As shown, this is the prior art and will not be described here); two separation parts 10 are provided, and both separation parts 10 are slidably connected to the connecting part 8 (slidably arranged along the length direction of the connecting part 8); in this embodiment, the torsion spring is located between the connecting part 8 and the bracket 11, so that the connecting part 8, the lubricating part 9 and the separation part 10 are forced to rotate to a position perpendicular to the slider 3 through the torsion spring, and the connecting part 8 is forced to contact the stopper 6 (such as Figure 5As shown); two groups of driving structures can be arranged on the connecting part 8, one group of driving structures (such as an electric push rod or a cylinder) drives the lubricating part 9 to move along the connecting part 8, and the other group of driving structures (such as a screw structure) drives the two separating parts 10 to move closer to or farther away from each other; in this way, when the lubricating part 9 fits the connecting part 8, the two separating parts 10 are close to each other and fit on the side of the lubricating part 9 away from the connecting part 8, so as to support the slide rail 4 through the two separating parts 10; when the movable section 5 fits the slide rail 4, the two separating parts 10 move away from each other, and the lubricating part 9 moves away from the connecting part 8, so as to fit the slide rail 4 through the lubricating part 9 and the two separating parts 10.

[0042] In the above embodiment, the lubricating mechanism 7 can reduce the friction between the movable segment 5 and the slide rail 4 when the movable segment 5 is in the second state. However, when the movable segment 5 is in the first state, the lubricating mechanism 7 directly supports the slide rail 4, which will cause damage to the lubricating mechanism 7, and there is also a risk of leakage of the lubricating oil in the lubricating mechanism 7. In this embodiment, two integral movable segments 5 are relatively arranged on the slider 3, and the lubricating mechanism 7 is not arranged on the two integral movable segments 5. A split movable segment 5 is arranged between the two integral movable segments 5, so that the slide rail 4 can be guided by multiple movable segments 5 (such as Figure 5 and Figure 6 As shown, Figure 7 Two integral movable sections 5 are omitted); for the split movable section 5, when the movable section 5 is in the first state, the two separation parts 10 are close to each other and fit on the side of the lubricating part 9 away from the connecting part 8. At this time, the slide rail 4 inserted into the slide groove can receive the slide rail 4 through the two separation parts 10. After the movable section 5 switches to the second state, the two separation parts 10 are controlled to move away from each other until the spacing between the two separation parts 10 is the same as the width of the lubricating part 9, and the lubricating part 9 is controlled to move away from the connecting part 8, so that the lubricating part 9 can be fitted to the outer wall of the slide rail 4; the advantage is that by changing the positions of the lubricating part 9 and the separation part 10, the movable section 5 can receive the slide rail 4 through the separation part 10 when it is in the first state, and can contact the outer wall of the slide rail 4 through the lubricating part 9 when the movable section 5 is in the second state. At the same time, the two separation parts 10 are also fitted on the outer wall of the slide rail 4, thereby protecting the lubricating mechanism 7 on the lubricating part 9 in the process of receiving the slide rail 4, ensuring the use of the lubricating mechanism 7 after receiving the slide rail 4, and minimizing the friction between the movable section 5 and the slide rail 4.

[0043] As an alternative solution for the above two sets of driving structures to drive the lubricating part 9 and the separating part 10 to operate, preferably, a first elastic member 12 is arranged between the connecting part 8 and the lubricating part 9. A movable groove 13 is configured on the connecting part 8, and an L-shaped rod 14 is fixed on the separating part 10, and one end of the L-shaped rod 14 is slidably connected in the movable groove 13. A second elastic member 15 for forcing the L-shaped rod 14 to be received in the movable groove 13 is arranged in the movable groove 13, a wedge-shaped portion 16 is configured on the L-shaped rod 14, a driving member 17 is slidably connected to the slider 3, and a wedge-shaped surface 18 is configured on the driving member 17, and a through groove 19 connected to the movable groove 13 is configured on the connecting part 8. When the movable section 5 is in the second state, the driving member 17 can be inserted into the through groove 19 to force the L-shaped rod 14 to extend out of the movable groove 13 through the wedge-shaped portion 16 and the wedge-shaped surface 18. Specifically, a sliding portion 20 is constructed on the lubricating portion 9, and an engaging groove is constructed on the connecting portion 8, and the sliding portion 20 is slidably connected in the engaging groove; the first elastic member 12 can use a spring structure in the prior art, one end of which is fixed on the inner wall of the engaging groove, and the other end is fixed on the sliding portion 20, so that the lubricating portion 9 is forced to move away from the connecting portion 8 through the first elastic member 12; the travel of the sliding portion 20 in the engaging groove is limited, so that the sliding travel of the lubricating portion 9 is the same as the thickness of the separating portion 10; the movable groove 13 is arranged along the length direction of the connecting portion 8, and the two separating portions 13 are connected to each other. The two L-shaped rods 14 are fixed on the two connecting parts 10, one end of the L-shaped rod 14 is fixed on the side wall of the separating part 10, and the other end extends into the movable groove 13, so that the separating part 10 can slide along the movable groove 13 through the L-shaped rod 14; the two L-shaped rods 14 are staggered in the height direction of the connecting part 8 to avoid interference between the two separating parts 10 when they are close to or away from each other; the second elastic member 15 can select a spring structure in the prior art, one end of which is fixed on the inner wall of the movable groove 13, and the other end is fixed on the outer wall of the L-shaped rod 14, so as to pass through the second elastic member 15. The elastic member 15 forces the L-shaped rod 14 to be received in the movable groove 13; two second elastic members 15 are arranged in the movable groove 13 to respectively force the two L-shaped rods 14 to be received in the movable groove 13; the through groove 19 is connected with the movable groove 13, the driving member 17 is a plate-shaped structure, and a sliding rod 21 is constructed on the slider 3, and the sliding rod 21 is inserted on the driving plate, so that the driving member 17 can be slidably connected to the slider 3 along the width direction of the connecting portion 8 (when the movable section 5 is in the second state) (a linear driving structure such as a screw rod can be arranged on the slider 3 to drive the driving member 17 along the sliding The rod 21 slides, and the linear driving structure is not shown in the figure and will not be described here. When the movable section 5 is in the second state, the driving member 17 slides along the sliding rod 21 and can be inserted into the through groove 19 and the movable groove 13; the driving member 17 is configured with two wedge surfaces 18. When the driving member 17 is inserted into the through groove 19, the two wedge portions 16 are respectively located on the moving stroke of the two wedge surfaces 18, so that the two L-shaped rods 14 are forced to move away from each other along the movable groove 13 through the two wedge surfaces 18 and the two wedge portions 16, thereby driving the two separation parts 10 to move away from each other (such as Fig.11 On the contrary, after the driving member 17 is moved out of the through slot 19, the two L-shaped rods 14 can be received into the movable slot 13 under the action of the two second elastic members 15, thereby driving the two separation portions 10 to move closer to each other (as shown in FIG. Fig. 9 and Fig.10 shown).

[0044] With such arrangement, when the movable section 5 is in the first state, the two second elastic members 15 can drive the two separation parts 10 to approach each other, so that the two separation parts 10 are fitted to the side of the lubricating part 9 away from the connecting part 8, so as to limit the lubricating part 9 to the end close to the connecting part 8 in its sliding stroke, and to avoid damage to the lubricating mechanism 7 as much as possible (to avoid leakage of lubricating oil in the lubricating mechanism 7 as much as possible). At the same time, the slide rail 4 can be supported by the two separation parts 10; after the slide rail 4 is inserted into the slide groove to force the movable section 5 to switch to the second state, the driving member 17 corresponds to the through groove 19, and when the driving member 17 is inserted into the through groove 19, The two wedge-shaped portions 16 are respectively abutted by the two wedge-shaped surfaces 18 to force the two L-shaped rods 14 to move away from each other, thereby driving the two separation portions 10 to move away from each other, until the distance between the two separation portions 10 is the same as the width of the lubrication portion 9. The lubrication portion 9 moves to the end of its sliding stroke away from the connecting portion 8 under the action of the first elastic member 12, so that the lubrication portion 9 and the two separation portions 10 are abutted against the outer wall of the slide rail 4 together, thereby improving the stability between the slider 3 and the slide rail 4 (that is, improving the rigidity between the spindle box 2 and the saddle 1) while utilizing the lubrication mechanism 7 on the lubrication portion 9 to reduce the friction between the slide rail 4 and the movable section 5.

[0045] Furthermore, the through groove 19 penetrates the connecting portion 8. After the driving member 17 forces the L-shaped rod 14 to extend out of the movable groove 13 to misalign the two separation portions 10 and the lubrication portion 9, the side wall of the driving member 17 abuts against the wedge-shaped portion 16 and the end thereof abuts against the lubrication portion 9, so that the driving member 17 can force the lubrication portion 9 to move away from the connecting portion 8 when it penetrates into the through groove 19. Specifically, in the above-mentioned embodiment, the first elastic member 12 is used to force the lubricating portion 9 away from the connecting portion 8. In the present embodiment, the first elastic member 12 is used to force the lubricating portion 9 to approach the connecting portion 8. The through groove 19 penetrates the connecting portion 8 along the width direction of the connecting portion 8, so that the driving member 17 can pass through the movable groove 13 and abut against the lubricating portion 9 when inserted into the through groove 19. The two side walls on the opposite sides of the driving member 17 are respectively connected to the two wedge surfaces 18, that is, one wedge surface 18 extends to one side wall, and the other wedge surface 18 extends to the other side wall. When the driving member 17 passes through the movable groove 13, the wedge portion 16 first abuts against the corresponding wedge surface 18, and then the wedge portion 16 and the wedge surface 18 abut against each other and are relatively positioned. The first elastic member 12 moves the first separating portion 10 and the second separating portion 10 to move ... The advantage of such a configuration is that after the slide rail 4 is inserted into the slide groove, the movable section 5 rotates to the second state, and at this time, the driving member 17 is driven to be inserted into the through groove 19, which can first force the two separation parts 10 to move away from each other, so that the two separation parts 10 are misaligned with the lubrication part 9, and then the driving member 17 continues to be inserted into the through groove 19, which can force the lubrication part 9 to overcome the elastic force of the first elastic member 12 and move away from the connecting part 8, so that the lubrication part 9 fits against the outer wall of the slide rail 4, thereby utilizing the lubrication mechanism 7 to reduce the friction between the slide rail 4 and the movable section 5 (at this time, the pressure between the two integral movable sections 5 and the two separation parts 10 and the outer wall of the slide rail 4 is small, and the friction is small, while the pressure between the lubrication part 9 and the outer wall of the slide rail 4 is large under the resistance of the driving member 17, but the lubrication mechanism 7 is provided on the lubrication part 9, thereby improving the stability between the slide rail 4 and the slider 3 while reducing the friction).

[0046] In another embodiment provided by the present invention, further, a connecting groove is constructed on the slider 3, a baffle 22 is slidably connected in the connecting groove, a third elastic member 23 is arranged in the connecting groove, one end of the third elastic member 23 is fixed on the inner wall of the connecting groove, and the other end is fixed on the baffle 22, so that the baffle 22 is forced to move out of the connecting groove and remain in the slide groove through the third elastic member 23; a trigger part 24 is constructed on the driving member 17, the end of the trigger part 24 is constructed in a wedge shape, the baffle 22 extends to the moving stroke of the trigger part 24, and a card slot 25 is constructed on the baffle 22. When the driving member 17 drives the two separation parts 10 to be misaligned with the lubrication part 9, the trigger part 2 The wedge-shaped end of the trigger part 24 abuts against the baffle 22 and forces the baffle 22 to be received in the connection groove. When the driving member 17 abuts against the lubricating portion 9 to force the lubricating portion 9 to fit the outer wall of the slide rail 4, the trigger part 24 moves to a position corresponding to the clamping groove 25, so that the baffle 22 can tend to move out of the connection groove under the action of the third elastic member 23. At this time, there is a certain distance between the wedge-shaped end of the trigger part 24 and the clamping groove 25, so that the baffle 22 can fit the outer wall of the slide rail 4 under the action of the third elastic member 23 (the portion of the baffle 22 corresponding to the slide rail 4 is adapted to the shape of the outer wall of the slide rail 4), and the wedge-shaped end of the trigger part 24 is clamped through the clamping groove 25. The advantage of such a configuration is that when the end of the slide rail 4 is inserted into the slide slot, the movable section 5 switches to the second state, at which time the baffle 22 extends into the slide slot under the action of the third elastic member 23 to prevent the slide rail 4 from continuing to be inserted into the slide slot, and to avoid the slide rail 4 directly moving out of the slide slot under the action of gravity when the slider 3 and the slide rail 4 are installed in a vertical state (such as the slide rail 4 between the spindle box 2 and the saddle 1 is vertically arranged); subsequently, the control driving member 17 is inserted into the through groove 19 to drive the two separation parts 10 to separate from the lubrication part 9 and drive the lubrication part 9 to fit onto the outer wall of the slide rail 4. During the process, the trigger part 24 can also force the baffle 22 to be retracted into the connecting groove and moved out of the slide slot (such as after the slide rail 4 is restricted by other structures, Or after the power unit of the spindle box 2 is installed), until the end of the trigger part 24 corresponds to the position of the slot 25, the baffle 22 tends to extend out of the connecting groove and abuts against the outer wall of the slide rail 4 under the action of the third elastic member 23, so that the outer wall of the slide rail 4 is cleaned by the baffle 22 of the elastic member to avoid impurities attached to the slide rail 4 from entering between the slider 3 and the slide rail 4; when the baffle 22 abuts against the outer wall of the slide rail 4, the slot 25 clamps the wedge-shaped end of the trigger part 24, so that the position of the driving member 17 can be limited, so that the driving member 17 remains in the through groove 19, thereby limiting the relative positions between the slider 3, the driving member 17, the connecting part 8, the lubrication part 9 and the separation part 10, so that the movable section 5 can operate stably.

[0047] It should be noted that the slide rail 4 is detachably connected to the spindle box 2, and the slider 3 is detachably connected to the saddle 1. That is, in each embodiment of the present invention, the slider 3 and the slide rail 4 can be first installed on the spindle box 2, and then the slider 3 can be installed on the saddle 1. The slider 3 and the slide rail 4 can also be installed on the spindle box 2 and the saddle 1 respectively, and then the slide rail 4 and the slider 3 are adapted and installed through a hoisting setting.

[0048] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A three-guide rail spindle box crane structure, comprising a saddle and a spindle box, wherein a slider is fixed on the saddle, and a slide rail is fixed on the spindle box, characterized in that: The slider is provided with: The movable section is rotatably connected to the sliding block, and the movable section has a first state in which the sliding block is vertical to receive the sliding rail, and a second state in which the movable section is in contact with the outer wall of the sliding rail after receiving the sliding rail.

2. A three-guideway spindle box crane structure according to claim 1, characterized in that: Slide rails are fixed on the three side surfaces of the spindle box, and six slide blocks are correspondingly arranged on the saddle.

3. The three-guideway spindle box crane structure according to claim 1 is characterized in that: A torsion spring is arranged between the movable section and the sliding block.

4. A three-guideway spindle box crane structure according to claim 3, characterized in that: The movable section is provided with a lubrication mechanism.

5. The three-guideway spindle box crane structure according to claim 4 is characterized in that: The movable section comprises a connecting portion rotatably connected to the slider and a lubricating portion slidably connected to the connecting portion. Two separation portions are slidably connected to the connecting portion.

6. A three-guideway spindle box crane structure according to claim 5, characterized in that: When the lubricating part fits the connecting part, the two separating parts are close to each other and fit on the side of the lubricating part away from the connecting part, so as to support the slide rail through the two separating parts; when the movable section fits the slide rail, the two separating parts are away from each other, and the lubricating part is away from the connecting part, so as to fit the slide rail through the lubricating part and the two separating parts.

7. The three-guideway spindle box crane structure according to claim 6 is characterized in that: A first elastic member is arranged between the connecting portion and the lubricating portion.

8. The three-guideway spindle box crane structure according to claim 7, characterized in that: The connecting portion is provided with a movable groove, the separating portion is fixed with an L-shaped rod, and one end of the L-shaped rod is slidably connected in the movable groove.

9. The three-guideway spindle box crane structure according to claim 8, characterized in that: A second elastic member for forcing the L-shaped rod to retract into the movable groove is provided in the movable groove, a wedge-shaped portion is constructed on the L-shaped rod, a driving member is slidably connected to the sliding block, a wedge-shaped surface is constructed on the driving member, and a through groove connected to the movable groove is constructed on the connecting portion. When the movable section is in the second state, the driving member can be inserted into the through groove to force the L-shaped rod to extend out of the movable groove through the wedge-shaped portion and the wedge-shaped surface.

10. A three-guideway spindle box crane structure according to claim 9, characterized in that: The through groove penetrates the connecting part. After the driving member forces the L-shaped rod to extend out of the movable groove to misalign the two separation parts and the lubrication part, the side wall of the driving member contacts the wedge-shaped part and the end contact the lubrication part, so that the driving member can force the lubrication part to move away from the connecting part when it penetrates into the through groove.

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