Adjustable drilling and tapping machine saddle

Abstract

The utility model relates to the technical field of numerical control drilling and tapping machines, in particular to an adjustable drilling and tapping machine saddle which comprises a saddle body and two sets of guide rails, the two sets of guide rails are connected to the two sides of the saddle body in a sliding mode through guide assemblies respectively, and the saddle body is rotationally connected with a two-way screw. The two ends of the two-way screw rods are in threaded connection with two sets of screw sleeves correspondingly, and the two sets of screw sleeves are connected with the two sets of two-way screw rods correspondingly. According to the utility model, by rotating the two-way screw rod, the two groups of screw sleeves sleeved on the two-way screw rod can be driven to move in opposite directions in a manner of getting close to each other or getting away from each other along the direction of the two-way screw rod, so that a user can adjust the distance between the two groups of guide rails as required, and the two groups of guide rails can be adjusted to the required distance according to the specification of a workpiece placing table; therefore, the workpiece placing tables of different specifications can be conveniently installed.

Description

Technical Field

[0001] The utility model relates to the technical field of numerically controlled drilling and tapping machines, and more specifically, to an adjustable saddle for a drilling and tapping machine. Background Art

[0002] A drilling and tapping machine is a numerically controlled machine tool that combines the functions of drilling and tapping into one, and is used for precise hole machining and thread machining of workpieces. This kind of machine tool is usually equipped with an automatic tool change system and a numerical control system, and can automatically complete multiple machining steps, including positioning, drilling, tapping, and possibly milling, boring, etc., thus greatly improving production efficiency and machining accuracy. The numerically controlled drilling and tapping machine includes structures such as a base, a saddle, and a workpiece placement table.

[0003] Chinese Patent CN2543784U discloses a numerically controlled drilling and tapping machine and its saddle. By setting the connection between the inner side wall and the bottom surface of the saddle body as an arched structure, and setting the tailstock mounting assembly and the motor base mounting assembly as middle-opening mounting plate structures perpendicular to the inner side wall and the bottom surface of the saddle body respectively, the effect of greatly enhancing the structural rigidity and not being easily deformed is achieved. However, the positions of the two groups of guide rails on this kind of drilling and tapping machine saddle are fixed, and the user cannot adjust the spacing of the guide rails thereon. Therefore, it is difficult to install workpiece placement tables of different specifications on the saddle according to needs, and the flexibility of use is poor. Summary of the Utility Model

[0004] The utility model provides an adjustable saddle for a drilling and tapping machine, which solves the technical problems in the prior art.

[0005] In view of the above problems, the technical solution proposed by the utility model is:

[0006] An adjustable saddle for a drilling and tapping machine, including a saddle body and two groups of guide rails. The two groups of guide rails are respectively slidably connected to both sides of the saddle body through a guiding component. A bidirectional screw is rotatably connected to the saddle body. The two ends of the bidirectional screw are respectively threadedly connected with two groups of screw sleeves, and the two groups of screw sleeves are respectively connected to the two groups of bidirectional screws.

[0007] Further, the guiding component includes guiding strips arranged on both sides of the saddle body, and guiding grooves arranged on both sides of the bottom end of the guide rail and fitting with the guiding strips.

[0008] Further, the upper cross-section of the guiding strip is arc-shaped, the lower cross-section of the guiding strip is rectangular, and the diameter of the arc-shaped cross-section at the upper end of the guiding strip is greater than the width of the rectangular cross-section at the lower end.

[0009] Further, limit pieces are arranged at both ends of each guiding strip.

[0010] Further, one end of the bidirectional screw is fixedly connected with a hexagonal head.

[0011] Further, a flow groove is arranged on the surface of the saddle body, and the end of the flow groove extends to the outside of the saddle body.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: By rotating the bidirectional screw, the two sets of nuts sleeved thereon can be driven to move in opposite directions of approaching or separating along the direction of the bidirectional screw. Furthermore, the user can adjust the distance between the two sets of guide rails as needed, and can adjust the two sets of guide rails to the required distance according to the specifications of the workpiece placement table, so as to conveniently install workpiece placement tables of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is of the present utility model Figure 1 is an enlarged view of part A in the present utility model;

[0016] Figure 3 is a schematic exploded structural diagram of the guide rail and the saddle body in the present utility model;

[0017] Figure 4 is a schematic structural diagram of the guiding assembly in the present utility model;

[0018] Figure 5 is a schematic structural diagram of the saddle body and the flow groove in the present utility model.

[0019] In the figure: 1. Saddle body; 2. Guide rail; 3. Bidirectional screw; 4. Nut; 5. Guide bar; 6. Guide groove; 7. Limiting piece; 8. Hexagonal head; 9. Flow groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-5 , an adjustable drilling and tapping machine saddle, including a saddle body 1 and two groups of guide rails 2. The guide rails 2 are arranged on both sides of the top of the saddle body 1. The bottom end of the workpiece placement table of the drilling and tapping machine is slidably connected to the two groups of guide rails 2. The two groups of guide rails 2 are respectively slidably connected to both sides of the saddle body 1 through a guiding assembly. A bidirectional screw 3 is rotatably connected to the saddle body 1. The thread directions at both ends of the bidirectional screw 3 are opposite. Two groups of screw sleeves 4 are respectively threadedly connected to both ends of the bidirectional screw 3. When the bidirectional screw 3 is rotated, the bidirectional screw 3 will drive the two groups of screw sleeves 4 at both ends thereof to move in opposite directions. The two groups of screw sleeves 4 are respectively connected to the two groups of bidirectional screws 3.

[0023] During use, by rotating the bidirectional screw 3, the two groups of screw sleeves 4 sleeved thereon can be driven to move in opposite directions of approaching or separating along the direction of the bidirectional screw 3. During the movement of the guide rails 2, they will remain horizontal under the guiding action of the guiding assembly and will not deflect, so that the two groups of guide rails 2 can always be kept parallel to the axis of the saddle body 1 during the movement. By controlling the two groups of guide rails 2 to synchronously move horizontally closer or farther away from each other, the user can adjust the distance between the two groups of guide rails 2 as needed, and can adjust the two groups of guide rails 2 to the required distance according to the specifications of the workpiece placement table, thereby facilitating the installation of workpiece placement tables of different specifications.

[0024] Furthermore, please refer to Figure 1 and Figure 3, The guiding assembly includes guiding bars 5 arranged on both sides of the saddle body 1 and guiding grooves 6 arranged on both sides at the bottom end of the guide rail 2 and fitted with the guiding bars 5. Since the guiding grooves 6 and the guiding bars 5 are mutually fitted, when the guide rail 2 is arranged on the saddle body 1, the guiding bars 5 will be embedded in the guiding grooves 6 at the bottom of the guide rail 2. At this time, if the guide rail 2 moves, its moving track will remain a horizontal straight line along the direction of the guiding groove 6, and the guide rail 2 will not deflect due to the limitation of the guiding bars 5 during the movement, so that the two groups of guide rails 2 can always remain parallel to the axis of the saddle body 1 during the movement.

[0025] Further, please refer to Figure 4 , The upper cross-section of the guiding bar 5 is arc-shaped, the lower cross-section of the guiding bar 5 is rectangular, and the diameter of the arc-shaped upper cross-section of the guiding bar 5 is greater than the width of the lower rectangular cross-section. When the guiding groove 6 and the guiding bar 5 are mutually embedded, the arc-shaped upper part of the guiding bar 5 will always be stuck in the guiding groove 6, ensuring that the guiding groove 6 will not be separated from the guiding bar 5 upwards, preventing the end of the guide rail 2 from tilting upwards during the movement, and further ensuring that the end of the guide rail 2 always fits with the saddle body 1 and will not be separated during the movement.

[0026] Further, please refer to 3. Limit pieces 7 are arranged at both ends of each guiding bar 5. Since the guiding groove 6 at the bottom end of the guide rail 2 always remains embedded on the guiding bar 5 during the movement of the guide rail 2, the limit pieces 7 at both ends of the guiding bar 5 limit the moving stroke of the guide rail 2, preventing the guide rail 2 from moving out of the outside of the guiding bar 5 and causing it to break away from the saddle body 1.

[0027] Further, please refer to Figure 1 and Figure 2 , A hexagonal head 8 is fixedly connected to one end of the bidirectional screw 3, and the user can conveniently drive the bidirectional screw 3 to rotate by using tools such as a wrench.

[0028] Further, please refer to Figure 5 , A flow groove 9 is arranged on the surface of the saddle body 1, and the end of the flow groove 9 extends towards the outside of the saddle body 1. During the process of drilling a workpiece, the cutting fluid flowing onto the saddle body 1 will be collected in the flow groove 9 and flow out of the end of the flow groove 9 to the outside of the saddle body 1, avoiding the accumulation of the cutting fluid on the saddle body 1.

[0029] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An adjustable drilling and tapping machine saddle, comprising a saddle body (1) and two groups of guide rails (2), characterized in that, Two groups of the guide rails (2) are respectively slidably connected to both sides of the saddle body (1) through guiding components. A bidirectional screw (3) is rotatably connected to the saddle body (1). Two sets of screw sleeves (4) are respectively threadedly connected to both ends of the bidirectional screw (3), and the two sets of screw sleeves (4) are respectively connected to the two groups of bidirectional screws (3).

2. The adjustable drilling and tapping machine saddle according to claim 1, wherein The guiding component includes guiding strips (5) arranged on both sides of the saddle body (1), and guiding grooves (6) arranged on both sides of the bottom end of the guide rail (2) and adapted to the guiding strips (5).

3. The adjustable drilling and tapping machine saddle according to claim 2, characterized in that, The upper end cross-section of the guiding strip (5) is arc-shaped, the lower end cross-section of the guiding strip (5) is rectangular, and the diameter of the upper end arc-shaped cross-section of the guiding strip (5) is greater than the width of the lower end rectangular cross-section.

4. The adjustable drilling and tapping machine saddle according to claim 2, wherein, Limit pieces (7) are arranged at both ends of each group of guiding strips (5).

5. The adjustable drilling and tapping machine saddle according to claim 1, characterized in that, One end of the bidirectional screw (3) is fixedly connected with a hexagon head (8).

6. The adjustable drilling and tapping machine saddle according to claim 1, characterized in that, A flow groove (9) is arranged on the surface of the saddle body (1), and the end of the flow groove (9) extends outward from the saddle body (1).

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