Adjustable clamping mechanism of numerical control drilling and tapping machine

Abstract

The utility model relates to the technical field of numerical control drilling and tapping machines, in particular to an adjustable clamping mechanism of a numerical control drilling and tapping machine, which comprises a drilling and tapping machine body and a workpiece placing table arranged in the drilling and tapping machine body, side plates are mounted at two ends of the workpiece placing table, and synchronous cylinders are mounted on the two groups of side plates. One end of an output shaft of the synchronous air cylinder is connected with a clamping plate, and a cavity is formed in the workpiece containing table. A workpiece placed on the workpiece placing table can be clamped through the two sets of synchronous air cylinders and the two sets of clamping plates, the bottom of the workpiece placed on the workpiece placing table can be adsorbed through the combined action of the cavity, the adsorption holes, the air pump and the like, and the workpiece is clamped and adsorbed under the combined action of clamping and adsorption at the moment. And even if the side wall of the workpiece is a cambered surface, the workpiece is not prone to displacement due to external force in the machining process, and therefore the machining quality of the workpiece is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control drilling and tapping machines, and more specifically, to an adjustable clamping mechanism for a numerical control drilling and tapping machine. Background Art

[0002] A drilling and tapping machine, also known as a drilling and tapping machine, is a machine tool with dual functions of drilling and tapping. When processing a workpiece, a clamping mechanism is required to clamp and fix the workpiece.

[0003] The clamping mechanism of the existing numerical control drilling and tapping machine usually uses two sets of clamping plates to clamp and fix the workpiece. However, when the two sets of clamping plates clamp the workpiece, if the side wall of the workpiece is an arc surface structure, the contact area between the side wall of the workpiece and the clamping plate will be small, making it difficult to stably clamp and fix the workpiece. The workpiece is prone to displacement during the processing, thus affecting the processing of the workpiece. Summary of the Utility Model

[0004] The utility model provides an adjustable clamping mechanism for a numerical control drilling and tapping machine, which solves the technical problem of unstable clamping of workpieces in the prior art.

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

[0006] An adjustable clamping mechanism for a numerical control drilling and tapping machine includes a drilling and tapping machine body and a workpiece placement table arranged inside the drilling and tapping machine body. Side plates are installed at both ends of the workpiece placement table. Synchronous cylinders are installed on both groups of side plates. One end of the output shaft of the synchronous cylinder is connected to a clamping plate. A cavity is arranged inside the workpiece placement table. A plurality of adsorption holes communicating with the cavity are arranged at the middle position of the surface of the workpiece placement table. An air extraction pump is installed on the inner wall of the drilling and tapping machine body. A conduit leading to the inside of the cavity is connected between the air extraction pump and the drilling and tapping machine body;

[0007] Among them, an air venting component for restoring the air pressure inside the cavity is arranged on one side of the drilling and tapping machine body, and a displacement component for adjusting the position of the workpiece placement table is arranged inside the drilling and tapping machine body.

[0008] Further, the air venting component includes an air inlet pipe connected to the drilling and tapping machine body and communicating with the inside of the cavity, and an electromagnetic valve installed on the air inlet pipe.

[0009] Further, intercepting nets are arranged at the tops of a plurality of the adsorption holes.

[0010] Further, anti-slip lining plates are arranged on the surfaces of the clamping plates, and anti-slip lines are evenly arranged on the surfaces of the anti-slip lining plates.

[0011] Further, a number of groups of diversion channels are provided on the workpiece placement table, and the diversion channels run horizontally through the surface of the workpiece placement table.

[0012] Further, the displacement assembly includes a first electric guide rail fixedly installed inside the drilling and tapping machine body, a second electric guide rail slidably installed on the first electric guide rail, the workpiece placement table is slidably installed on the second electric guide rail, and the first electric guide rail and the second electric guide rail are perpendicular to each other.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] (1) The workpiece placed on the workpiece placement table can be clamped by two groups of synchronous cylinders and clamping plates. Through the combined action of the cavity, adsorption holes, air extraction pump, etc., the bottom of the workpiece placed on the workpiece placement table can be adsorbed. At this time, under the combined action of clamping and adsorption, the workpiece can be more stably fixed on the workpiece placement table. Even if the side wall of the workpiece is an arc surface, it is not easy to displace due to external force during the processing, thus ensuring the processing quality of the workpiece.

[0015] (2) Through the setting of the displacement assembly, the workpiece placement table can slide linearly along the direction of the second electric guide rail, and the second electric guide rail can slide along the direction of the first electric guide rail. Therefore, the X-axis and Y-axis positions of the workpiece placement table can be controlled by the first electric guide rail and the second electric guide rail. Furthermore, during the process of fixing the workpiece on the workpiece placement table for processing, the planar position of the workpiece can be flexibly adjusted, facilitating the processing of various positions on the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for 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 thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a structural schematic diagram of the present utility model;

[0018] Figure 2 It is a structural schematic diagram of the workpiece placement table and the air extraction pump in the present utility model;

[0019] Figure 3 It is a structural schematic diagram of the workpiece placement table in the present utility model;

[0020] Figure 4 It is a structural schematic diagram of the clamping plate and the anti-slip lining plate in the present utility model.

[0021] In the figure: 1. Drill and tapping machine body; 2. Workpiece placement table; 3. Side plate; 4. Synchronous cylinder; 5. Clamping plate; 6. Cavity; 7. Suction hole; 8. Air extraction pump; 9. Conduit; 10. Inlet pipe; 11. Solenoid valve; 12. Intercepting net; 13. Anti-slip lining plate; 14. Flow guiding groove; 15. First electric guide rail; 16. Second electric guide rail. Specific implementation manner

[0022] To make the purpose, technical solution 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 with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment 1

[0025] Please refer to Figures 1-4 , an adjustable clamping mechanism of a numerical control drill and tapping machine, including a drill and tapping machine body 1 and a workpiece placement table 2 arranged inside the drill and tapping machine body 1. Side plates 3 are installed at both ends of the workpiece placement table 2. Synchronous cylinders 4 are installed on both groups of side plates 3. One end of the output shaft of the synchronous cylinder 4 is connected to a clamping plate 5. A cavity 6 is arranged inside the workpiece placement table 2. A number of suction holes 7 communicating with the cavity 6 are opened at the middle position of the surface of the workpiece placement table 2. An air extraction pump 8 is installed on the inner wall of the drill and tapping machine body 1. A conduit 9 leading into the cavity 6 is connected between the air extraction pump 8 and the drill and tapping machine body 1;

[0026] Among them, a ventilation component for restoring the air pressure inside the cavity 6 is arranged on one side of the drill and tapping machine body 1, and a displacement component for adjusting the position of the workpiece placement table 2 is arranged inside the drill and tapping machine body 1.

[0027] Place the workpiece to be processed on the workpiece placement table 2. By starting two groups of synchronous cylinders 4, the output shafts of the two groups of synchronous cylinders 4 can drive two groups of clamping plates 5 to approach each other, so that the workpiece placed on the workpiece placement table 2 is clamped by the two groups of clamping plates 5. After the workpiece is clamped, the bottom of the workpiece abuts against the surface of the workpiece placement table 2 and blocks a number of adsorption holes 7. At this time, start the air extraction pump 8, and the air extraction pump 8 can extract the air inside the cavity 6 through the conduit 9, making the inside of the cavity 6 in a negative pressure state. Since a number of adsorption holes 7 are connected to the inside of the cavity 6, the cavity 6 in a negative pressure state can adsorb the bottom of the workpiece through the adsorption holes 7. At this time, under the combined action of the clamping of the two groups of clamping plates 5 and the adsorption of the adsorption holes 7, the workpiece can be more stably fixed on the workpiece placement table 2. Even if the side wall of the workpiece is an arc surface, it is not easy to displace due to external forces during the processing, thus ensuring the processing quality of the workpiece. When the workpiece needs to be removed from the workpiece placement table 2 after processing, the air extraction pump 8 can be turned off to stop the air extraction pump 8 from extracting the air inside the cavity 6, and then through the ventilation component, the outside air can enter the cavity 6, so that the inside of the cavity 6 is no longer in a negative pressure state. At this time, the adsorption effect on the bottom of the workpiece is no longer generated, and at the same time, by controlling the output shafts of the two groups of synchronous cylinders 4 to move away from each other, the workpiece is no longer clamped, so that the workpiece on the workpiece placement table 2 can be removed.

[0028] Further, please refer to Figure 1 and Figure 3 The ventilation component includes an air inlet pipe 10 connected to the drilling and tapping machine body 1 and communicating with the inside of the cavity 6, and a solenoid valve 11 installed on the air inlet pipe 10.

[0029] The opening and closing of the air inlet pipe 10 can be controlled by the solenoid valve 11. When it is necessary to adsorb the workpiece, the air inlet pipe 10 can be blocked by closing the solenoid valve 11. At this time, the outside air cannot enter the inside of the cavity 6 through the air inlet pipe 10. When the air inside the cavity 6 is extracted, the negative pressure state inside the cavity 6 can be maintained. When the workpiece is processed, opening the solenoid valve 11 can make the outside air enter the cavity 6 through the air inlet pipe 10, so as to relieve the negative pressure state inside the cavity 6.

[0030] Further, please refer to Figure 3 A blocking net 12 is provided at the top of each of the plurality of adsorption holes 7.

[0031] During the processing, a lot of debris will splash on the workpiece placement table 2. The blocking net 12 can prevent the debris from entering the inside of the cavity 6 through the adsorption holes 7. At the same time, the blocking net 12 has air permeability and will not affect the adsorption of the cavity 6 on the workpiece.

[0032] Further, please refer to Figure 4, an anti-slip lining plate 13 is provided on the surface of the clamping plate 5, and anti-slip lines are evenly arranged on the surface of the anti-slip lining plate 13.

[0033] When the clamping plate 5 clamps the surface of the workpiece, the anti-slip lining plate 13 will directly contact the surface of the workpiece. The surface of the anti-slip lining plate 13 is rough, which can increase the frictional resistance between the clamping plate 5 and the surface of the workpiece. Therefore, the fixed clamping effect on the workpiece can be further enhanced.

[0034] Furthermore, please refer to Figure 2 and Figure 3 , a plurality of groups of diversion grooves 14 are provided on the workpiece placement table 2, and the diversion grooves 14 penetrate horizontally through the surface of the workpiece placement table 2.

[0035] During the process of machining the workpiece by the drilling and tapping machine, cutting fluid needs to be sprayed on the machining part. Through the diversion grooves 14, the cutting fluid falling on the workpiece placement table 2 can be drained, so that it can quickly reach the outside of the workpiece placement table 2 without being blocked by the side plates 3 on both sides.

[0036] Furthermore, please refer to Figure 1 and Figure 2 , the displacement assembly includes a first electric guide rail 15 fixedly installed inside the drilling and tapping machine body 1, a second electric guide rail 16 slidably installed on the first electric guide rail 15, the workpiece placement table 2 is slidably installed on the second electric guide rail 16, and the first electric guide rail 15 and the second electric guide rail 16 are perpendicular to each other.

[0037] Embodiment 2

[0038] Please refer to Figure 1 and Figure 2 , the workpiece placement table 2 can slide linearly along the direction of the second electric guide rail 16, and the second electric guide rail 16 can slide along the direction of the first electric guide rail 15. Therefore, through the first electric guide rail 15 and the second electric guide rail 16, the X-axis and Y-axis positions of the workpiece placement table 2 can be controlled. Furthermore, when the workpiece is fixed on the workpiece placement table 2 for machining, the planar position of the workpiece can be flexibly adjusted, which is convenient for machining various positions on the workpiece.

[0039] 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 in the protection scope of the present invention.

Claims

1. An adjustable clamping mechanism for a numerically controlled drilling and tapping machine, comprising a drilling and tapping machine body (1) and a workpiece placement table (2) arranged inside the drilling and tapping machine body (1), characterized in that, Both ends of the workpiece placement table (2) are provided with side plates (3). Synchronous cylinders (4) are installed on both groups of the side plates (3). One end of the output shaft of the synchronous cylinder (4) is connected to a clamping plate (5). A cavity (6) is arranged inside the workpiece placement table (2). A plurality of adsorption holes (7) communicating with the cavity (6) are formed in the middle position of the surface of the workpiece placement table (2). An air extraction pump (8) is installed on the inner wall of the drilling and tapping machine body (1). A conduit (9) leading to the inside of the cavity (6) is connected between the air extraction pump (8) and the drilling and tapping machine body (1). Among them, an air venting assembly for restoring the air pressure inside the cavity (6) is arranged on one side of the drilling and tapping machine body (1), and a displacement assembly for adjusting the position of the workpiece placement table (2) is arranged inside the drilling and tapping machine body (1).

2. The adjustable clamping mechanism of the numerically controlled drilling and tapping machine according to claim 1, wherein, The air venting assembly includes an air inlet pipe (10) connected to the drilling and tapping machine body (1) and communicating with the inside of the cavity (6), and a solenoid valve (11) installed on the air inlet pipe (10).

3. The adjustable clamping mechanism of the numerically controlled drilling and tapping machine according to claim 1, wherein, Intercepting nets (12) are arranged at the tops of a plurality of the adsorption holes (7).

4. The adjustable clamping mechanism of the numerically controlled drilling and tapping machine according to claim 1, characterized in that, Anti-slip lining plates (13) are arranged on the surfaces of the clamping plates (5), and anti-slip lines are evenly arranged on the surfaces of the anti-slip lining plates (13).

5. The adjustable clamping mechanism of the numerically controlled drilling and tapping machine according to claim 1, wherein A plurality of flow guiding grooves (14) are arranged on the workpiece placement table (2), and the flow guiding grooves (14) penetrate horizontally through the surface of the workpiece placement table (2).

6. The adjustable clamping mechanism of the numerically controlled drilling and tapping machine according to claim 1, characterized in that, The displacement assembly includes a first electric guide rail (15) fixedly installed inside the drilling and tapping machine body (1), and a second electric guide rail (16) slidably installed on the first electric guide rail (15). The workpiece placement table (2) is slidably installed on the second electric guide rail (16), and the first electric guide rail (15) and the second electric guide rail (16) are perpendicular to each other.

Images