Guide rail unloading structure

Abstract

A guide rail unloading structure relates to the technical field of gantry machine tools and comprises a guide rail, a sliding saddle, an adjusting stud, a movable column and a rolling block, the sliding saddle slides on the guide rail and is provided with an unloading groove, the adjusting stud, the movable column and the rolling block are movably mounted in the unloading groove from top to bottom, the adjusting stud is rotatably mounted on the sliding saddle and is elastically connected with the movable column, and the rolling block is movably connected with the sliding saddle. The rolling block is located below the movable column and makes rolling contact with the guide rail. The sliding saddle has the advantages that the sliding saddle indirectly exerts acting force on the rolling block through the adjusting stud, so that the rolling block is in close contact with the guide rail, rolling unloading in the moving process of the rolling block is achieved, and the service life of the guide rail is prolonged; and the unloading force is changed by adjusting the height of the stud, so that different production environments are adapted.

Description

Technical Field

[0001] The utility model relates to the technical field of gantry machine tools, in particular to a guide rail unloading structure. Background Art

[0002] Sliding guides are generally used for guidance and support in machine tool processing centers. Their accuracy, rigidity and structural form have a direct impact on the processing accuracy and load-bearing capacity of the machine tool. The guides are required to have high guiding accuracy, sufficient rigidity, good wear resistance and good low-speed motion stability. In actual production operations, sliding guides need to withstand large loads. When the load changes greatly, an unloading device is usually used for adjustment to keep the track moving smoothly to improve the quality of workpiece processing.

[0003] The existing unloading structure of the sliding guide rail is complex, difficult to maintain, difficult to adjust the unloading force, and difficult to adapt to complex production environments. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a guide rail unloading structure, and its technical solution is as follows:

[0005] A guide rail unloading structure includes a guide rail, a saddle adjustment stud, a movable column and a rolling block. The saddle slides on the guide rail and is provided with an unloading groove. The adjustment stud, movable column and rolling block are movably installed in the unloading groove from top to bottom. The adjustment stud is rotatably installed on the saddle. The adjustment stud is elastically connected to the movable column. The rolling block is located below the movable column and is in rolling contact with the guide rail.

[0006] Furthermore, the guide rail unloading structure also includes a fixing plate, which is fixed to the slide saddle and is threadedly connected to the adjusting stud.

[0007] Furthermore, the fixing plate and the adjusting stud are connected via an M42×1.5 fine thread thread.

[0008] Furthermore, the guide rail unloading structure further includes a movable seat, the rolling block is rollingly engaged with the movable seat, and the movable seat is in contact with the movable column.

[0009] Furthermore, the rolling block includes a fixed portion and a rolling portion, the fixed portion is fixedly connected to the movable seat, the rolling portion is rotatably connected to the fixed portion, and the rolling portion is in rolling contact with the guide rail.

[0010] Furthermore, an elastic member is provided between the adjusting screw and the movable column, one end of the elastic member contacts the adjusting screw, and the other end of the elastic member contacts the movable column.

[0011] Furthermore, a restraining groove is provided on the side wall of the movable column, and a first mounting groove is provided on the sliding saddle. A restraining member is installed in the first mounting groove, and the restraining member extends into the restraining groove.

[0012] Furthermore, the guide rail unloading structure also includes a stopper, the slide saddle is provided with a second mounting groove, the second mounting groove is located on the side of the rolling block, and the stopper is installed in the second mounting groove.

[0013] Furthermore, the guide rail unloading structure also includes a pressure plate, which is fixed to the slide saddle, and the pressure plate covers the first installation groove and the second installation groove.

[0014] Furthermore, the pressure plate is L-shaped, and cooperates with the slide saddle to apply force to both sides of the guide rail.

[0015] The benefits of the present invention lie in that: the saddle indirectly applies a force to the rolling block through the adjusting stud, so that the rolling block is in close contact with the guide rail, thereby realizing rolling unloading during the movement of the rolling block and improving the service life of the guide rail; the unloading force is changed by changing the height of the adjusting stud, thereby adapting to different production environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the guide rail unloading structure of the utility model.

[0017] Figure 2 for Figure 1 Schematic diagram of part of the structure of the guide rail unloading structure.

[0018] In the picture:

[0019] 1. Crossbeam; 2. Saddle; 21. Unloading groove; 22. First mounting groove; 23. Second mounting groove; 3. Guide rail; 4. Adjusting stud; 5. Fixing plate; 6. Elastic member; 7. Movable column; 71. Constraint groove; 8. Movable seat; 9. Rolling block; 91. Fixing part; 92. Rolling part; 10. Constraint member; 11. Stop block; 12. Pressure plate. DETAILED DESCRIPTION

[0020] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / and" used herein includes any and all combinations of one or more of the related listed items.

[0022] The following is an example of Figure 1-2 The utility model is described in further detail.

[0023] A guide rail unloading structure includes a crossbeam 1, a sliding saddle 2, a guide rail 3, an adjusting stud 4, a fixing plate 5, an elastic member 6, a movable column 7, a movable seat 8, a rolling block 9, a restraining member 10, a stopper 11 and a pressure plate 12.

[0024] The saddle 2 is provided with an unloading groove 21 , a first mounting groove 22 , and a second mounting groove 23 for mounting various components.

[0025] The rolling block 9 includes a fixed portion 91 and a rolling portion 92 . The rolling portion 92 is rotatably mounted on the fixed portion 91 .

[0026] Specifically, in this embodiment, the elastic member 6 is a butterfly spring.

[0027] The fixed plate 5, the adjusting stud 4, the elastic member 6, the movable column 7, the rolling block 9, and the movable seat 8 are sequentially installed in the unloading groove 21 from top to bottom. The fixed plate 5 is fixed to the saddle 2. The fixed plate 5 is threadedly connected to the adjusting stud 4. Specifically, in this embodiment, the adjusting stud 4 and the fixed plate 5 are connected by M42X1.5 fine thread. The fine thread structure makes the adjustment process more precise and also makes the locking effect between the adjusting stud 4 and the fixed plate 5 better; one end of the elastic member 6 abuts against the movable column 7, and the other end abuts against the adjusting stud 4. The movable seat 8 contacts the movable column 7, and the fixed portion 91 is fixedly connected to the movable seat 8.

[0028] The restraining member 10 is installed in the first mounting groove 22 , and a restraining groove 71 is provided on the side wall of the movable column 7 . The restraining member 10 extends into the restraining groove 71 to prevent the movable column 7 from moving radially and to prevent the elastic member 6 from rotating during the adjustment process of the adjusting stud 4 .

[0029] The stopper 11 is installed in the second installation groove 23 , and the stopper 11 limits the lateral movement range of the rolling block 9 .

[0030] Specifically, in this embodiment, the pressing plate 12 is L-shaped.

[0031] The guide rail 3 is fixed to the crossbeam 1, the saddle 2 slides on the guide rail 3, the rolling portion 92 is in rolling contact with the guide rail 3, the pressure plate 12 is fixed to the saddle 2, and the pressure plate 12 covers the first mounting groove 22 and the second mounting groove 23. Specifically, in this embodiment, the pressure plate 12 is slidably installed on the guide rail 3, and the pressure plate 12 cooperates with the saddle 2 to make the guide rail 3 bear force on both sides.

[0032] The utility model discloses a working principle of a guide rail unloading structure.

[0033] The saddle 2 generates a downward force on the adjusting stud 4, which presses the elastic part 6 to deform it. The elastic force of the elastic part 6 causes the movable column 7 to press the movable seat 8. Under the action of the elastic force of the elastic part 6, the rolling block 9 is in close contact with the guide rail 3 to achieve rolling unloading during movement; by adjusting the height of the adjusting stud 4, the preload amount of the elastic part 6 can be changed, and then the unloading equivalent can be changed to adapt to different production conditions.

[0034] The utility model is beneficial in that:

[0035] The saddle 2 applies a force to the elastic member 6 by adjusting the stud 4, thereby indirectly applying a force to the rolling block 9, so that the rolling block 9 is in close contact with the guide rail 3, realizing rolling unloading during the movement of the rolling block 9 and improving the service life of the guide rail 3; the unloading force is changed by adjusting the height of the stud 4 to adapt to different production environments.

[0036] The above embodiment merely represents one embodiment of the present invention and should not be construed as limiting the scope of the patent. It should be noted that those skilled in the art will be able to make various modifications and improvements without departing from the spirit of the present invention. These modifications and improvements are equivalent to those made to the above embodiment based on the essential technology of the present invention and fall within the scope of protection of the present invention.

Claims

1. A guide rail unloading structure, comprising a guide rail, characterized in that: It also includes a saddle, an adjusting stud, a movable column and a rolling block. The saddle slides on the guide rail. The saddle is provided with a unloading groove. The adjusting stud, the movable column and the rolling block are movably installed in the unloading groove from top to bottom. The adjusting stud is rotatably installed on the saddle. The adjusting stud is elastically connected to the movable column. The rolling block is located below the movable column, and the rolling block is in rolling contact with the guide rail.

2. The guide rail unloading structure according to claim 1, characterized in that: The guide rail unloading structure further includes a fixing plate, which is fixed to the slide saddle and is threadedly connected to the adjusting stud.

3. The guide rail unloading structure according to claim 2, characterized in that: The fixing plate and the adjusting stud are connected via an M42×1.5 fine thread thread.

4. The guide rail unloading structure according to claim 1, characterized in that: The guide rail unloading structure further comprises a movable seat, the rolling block is rollingly engaged with the movable seat, and the movable seat is in contact with the movable column.

5. The guide rail unloading structure according to claim 4, characterized in that: The rolling block includes a fixed portion and a rolling portion, wherein the fixed portion is fixedly connected to the movable seat, the rolling portion is rotatably connected to the fixed portion, and the rolling portion is in rolling contact with the guide rail.

6. The guide rail unloading structure according to claim 1, characterized in that: An elastic member is provided between the adjusting screw and the movable column, one end of the elastic member contacts the adjusting screw, and the other end of the elastic member contacts the movable column.

7. The guide rail unloading structure according to claim 1, characterized in that: A restraining groove is provided on the side wall of the movable column, and a first mounting groove is provided on the sliding saddle. A restraining member is installed in the first mounting groove, and the restraining member extends into the restraining groove.

8. The guide rail unloading structure according to claim 7, characterized in that: The guide rail unloading structure further includes a stopper, the slide saddle is provided with a second mounting groove, the second mounting groove is located on the side of the rolling block, and the stopper is mounted in the second mounting groove.

9. The guide rail unloading structure according to claim 8, characterized in that: The guide rail unloading structure further includes a pressing plate, which is fixed to the slide saddle and covers the first mounting groove and the second mounting groove.

10. The guide rail unloading structure according to claim 9, characterized in that : The pressure plate is L-shaped, and cooperates with the saddle to apply force to both sides of the guide rail.

Images