Pneumatic copper pipe clamping device of spark erosion drilling machine

Abstract

The utility model belongs to the technical field of machining, and particularly relates to a pneumatic copper pipe clamping device of a spark erosion drilling machine, an elastic clamping core is installed in a clamping head, a clamping piece body is arranged on the right side of the elastic clamping core, a copper pipe is arranged between the elastic clamping core and the clamping piece body, and a sliding groove penetrating through the right side wall of the clamping head is formed in the clamping head. The piston rod is slidably connected to the sliding groove, the left end of the piston rod penetrates through the right side wall of the chuck to abut against the clamping piece, the spring is arranged in the sliding groove, one end of the spring is connected with the piston rod, the other end of the spring is connected with the chuck, and the gas conveying mechanism is connected with the chuck and used for driving the piston rod to approach the clamping piece. The gas conveying mechanism is used for pushing the piston rod to extrude the clamping piece body to be close to the elastic clamping core, the clamping piece body and the elastic clamping core are used for clamping the copper pipe, the spring is used for reversely pushing the piston rod to be away from the clamping piece body so as to release the copper pipe, the driving mode is simple, the transmission path is short, and rapid clamping and releasing of the copper pipe are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical processing technical field, especially relates to a kind of electrospark piercing machine pneumatic copper pipe device. BACKGROUND

[0002] Fine metal copper pipe needs to be clamped by pneumatic chuck in electrospark piercing machine. However, the current electrospark piercing machine pneumatic chuck includes gear and sheet structure, and the overall structure is complex, which leads to long transmission path, and is not conducive to fast clamping and releasing of fine metal copper pipe. Secondly, the structure of the pneumatic chuck is complex, and is not convenient to install and maintain. Therefore, it is necessary to design an electrospark piercing machine pneumatic copper pipe device to solve the above problems. SUMMARY

[0003] To solve the above problems, the utility model provides an electrospark piercing machine pneumatic copper pipe device.

[0004] To achieve the above purpose, the utility model provides the following technical scheme:

[0005] An electrospark piercing machine pneumatic copper pipe device includes a gas delivery mechanism, a chuck, an elastic clamping core, a clamping sheet body, a piston rod and a spring. The elastic clamping core is installed in the chuck. The clamping sheet body is arranged on the right side of the elastic clamping core. The copper pipe is arranged between the elastic clamping core and the clamping sheet body. A sliding groove is formed in the right side wall of the chuck. The piston rod is slidably connected to the sliding groove. The left end of the piston rod penetrates the right side wall of the chuck and abuts against the clamping sheet body. The spring is arranged in the sliding groove. One end of the spring is connected to the piston rod, and the other end is connected to the chuck. The spring is used to drive the piston rod to reset. The gas delivery mechanism is connected to the chuck and is used to drive the piston rod to move close to the clamping sheet body.

[0006] Further, the electrospark piercing machine pneumatic copper pipe device further includes a screw, which is threadedly connected to the left side wall of the chuck. The right end of the screw penetrates the left side wall of the chuck and is connected to the elastic clamping core.

[0007] Further, the electrospark piercing machine pneumatic copper pipe device further includes a plug screw. An air inlet is formed in the right end of the chuck. The left end of the air inlet is in communication with the sliding groove. The right end of the air inlet is in communication with the gas delivery mechanism. The gas delivery mechanism is used to introduce gas through the air inlet to drive the piston rod to be slidably connected to the sliding groove. The plug screw can be detachably assembled in the air inlet.

[0008] Further, the electric spark perforating machine pneumatic copper pipe clamping device further comprises a gas conveying mechanism main body and a main shaft, a first gas passage is formed in the chuck, and the first gas passage is used for passing in gas to drive the piston rod to move;

[0009] The main shaft passes through and is rotationally connected to the gas conveying mechanism main body, the main shaft is located at the upper end of the chuck and is threadedly connected with the chuck, a second gas passage is formed in the main shaft, an air inlet hole and an annular air groove are formed in the gas conveying mechanism main body, the air inlet hole is communicated with the second gas passage through the annular air groove, and the second gas passage is communicated with the first gas passage.

[0010] Further, the gas conveying mechanism further comprises a first bearing, a second bearing and a snap spring, a rotating position is formed in the upper end of the gas conveying mechanism main body, the first bearing is arranged in the rotating position, and the second bearing and the snap spring are sequentially arranged from top to bottom between the lower end of the gas conveying mechanism main body and the main shaft.

[0011] Further, the gas conveying mechanism further comprises a first sealing ring and a second sealing ring, the first sealing ring and the second sealing ring are sequentially arranged from top to bottom between the main shaft and the gas conveying mechanism main body, and the first sealing ring and the second sealing ring are located between the first bearing and the second bearing.

[0012] Further, the electric spark perforating machine pneumatic copper pipe clamping device further comprises a third sealing ring and a fourth sealing ring, the third sealing ring is arranged between the main shaft and the chuck, and the fourth sealing ring is arranged between the chuck and the piston rod.

[0013] The technical effects and advantages of the electric spark perforating machine pneumatic copper pipe clamping device are as follows:

[0014] 1. The gas conveying mechanism is used for pushing the piston rod to extrude the clamping piece body to be close to the elastic clamping core, so that the clamping piece body and the elastic clamping core clamp the copper pipe, and the spring is reversely used for pushing the piston rod to be away from the clamping piece body to release the copper pipe, the driving mode is relatively simple, the transmission path is relatively short, and the copper pipe can be quickly clamped and released.

[0015] 2. The pneumatic copper pipe clamping device only comprises the gas conveying mechanism, the chuck, the elastic clamping core, the clamping piece body, the piston rod and the spring, and the overall structure is relatively simple, so that the pneumatic copper pipe clamping device is convenient to install and maintain.

[0016] Other features and advantages of the electric spark perforating machine pneumatic copper pipe clamping device will be described in the subsequent description, and some of them will become apparent from the description, or will be understood by those skilled in the art through implementation of the electric spark perforating machine pneumatic copper pipe clamping device. The purpose and other advantages of the electric spark perforating machine pneumatic copper pipe clamping device can be achieved and obtained through the structure indicated in the description and the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0018] Figure 1 Part of the structure schematic diagram of the pneumatic copper pipe clamping device of the electric spark perforating machine is shown in the embodiment of the present application.

[0019] Figure 2 The exploded structure schematic diagram of the part of the structure of the pneumatic copper pipe clamping device of the electric spark perforating machine is shown in the embodiment of the present application.

[0020] Figure 3 The structure schematic diagram of the gas conveying mechanism is shown in the embodiment of the present application.

[0021] Figure 4 The cross-sectional structure schematic diagram of the gas conveying mechanism is shown in the embodiment of the present application.

[0022] In the figure: 1, chuck; 11, first gas channel; 12, hole plug screw; 13, air inlet; 2, elastic clamping core; 21, clamping piece body; 3, spring; 4, piston rod; 5, screw; 61, gas conveying mechanism main body; 611, air inlet hole; 612, annular air groove; 62, main shaft; 621, second gas channel; 63, second bearing; 64, clamping spring; 65, first sealing ring; 66, second sealing ring; 71, third sealing ring; 72, fourth sealing ring. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical scheme in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0024] As Figure 1 and Figure 2The utility model discloses a kind of pneumatic copper pipe clamping devices of electric spark perforating machine shown in the embodiment of the utility model, including gas conveying mechanism, chuck 1, elastic core 2, clamping piece 21, piston rod 4 and spring 3, the elastic core 2 is installed in the chuck 1, the elastic core 2 right side is provided with the clamping piece 21, copper pipe is used for being arranged between the elastic core 2 and the clamping piece 21, the chuck 1 is opened with the sliding groove that penetrates the right side wall of the chuck 1, the piston rod 4 is slidably connected in the sliding groove, the piston rod 4 left end passes through the right side wall of the chuck 1 and the clamping piece 21 abuts, the spring 3 is arranged in the sliding groove, one end of the spring 3 is connected with the piston rod 4, and the other end is connected with the chuck 1, and the spring 3 is used to drive the piston rod 4 reset, and the gas conveying mechanism is connected with the chuck 1 and is used to drive the piston rod 4 close to the clamping piece 21.

[0025] Specifically, the sliding groove includes a first sliding groove and a second sliding groove, the first sliding groove is located left of the second sliding groove and communicates with the second sliding groove, the piston rod 4 includes a push rod and a piston, the push rod is slidably connected to the first sliding groove, the piston is slidably connected to the second sliding groove, the diameter of the push rod is less than the diameter of the piston rod 4, and the diameter of the first sliding groove is less than the diameter of the second sliding groove. One end of the spring 3 abuts against the left side wall of the second sliding groove, and the other end abuts against the left side of the piston.

[0026] Secondly, the elastic core 2 is provided in a cylindrical structure, a central hole is formed in the elastic core 2, the central hole extends in a vertical direction and is coaxially distributed with the elastic core 2. An L-shaped slot is formed in the right side of the elastic core 2 to form the clamping piece 21.

[0027] In addition, an installation hole is formed in the chuck 1, the installation hole extends in a vertical direction and is coaxially distributed with the elastic core 2, and the elastic core 2 is arranged in the installation hole.

[0028] In the embodiment, the gas conveying mechanism is used to input gas to push the piston rod 4 to approach the clamping sheet body 21, and the clamping sheet body 21 is pressed to approach the elastic clamping core 2, so that the gap between the clamping sheet body 21 and the elastic clamping core 2 is reduced, and the copper pipe is located between the clamping sheet body 21 and the elastic clamping core 2, which is beneficial to clamping the copper pipe by the clamping sheet body 21 and the elastic clamping core 2, and secondly, the piston rod 4 is compressed in the process of approaching the clamping sheet body 21. After the gas conveying mechanism stops inputting gas, the spring 3 releases the elastic force, reversely pushes the piston rod 4 away from the clamping sheet body 21, the gap between the clamping sheet body 21 and the elastic clamping core 2 is increased, and the copper pipe between the clamping sheet body 21 and the elastic clamping core 2 is released. Thus, the piston rod 4 is pushed by the gas conveying mechanism to press the clamping sheet body 21 to approach the elastic clamping core 2, the clamping sheet body 21 and the elastic clamping core 2 are used to clamp the copper pipe, and the piston rod 4 is reversely pushed away from the clamping sheet body 21 by the spring 3 to release the copper pipe, the driving mode is relatively simple, the transmission path is relatively short, and the copper pipe is quickly clamped and released.

[0029] Optionally, as shown in Figure 1 and Figure 2 , the electric spark perforating machine pneumatic copper pipe clamping device further comprises a screw 5, the screw 5 is threadedly connected with the left side wall of the chuck 1, and the right end of the screw 5 is connected with the elastic clamping core 2 through the left side wall of the chuck 1.

[0030] Specifically, the chuck 1 is provided with a mounting groove penetrating through the left side wall, the screw 5 is inserted into the mounting groove, and the outer side wall of the screw 5 is provided with threads to be threadedly connected with the inner side wall of the mounting groove.

[0031] In the embodiment, the screw 5 is threadedly connected with the left side wall of the chuck 1 to fix the screw 5 on the chuck 1, the right end of the screw 5 is connected with the elastic clamping core 2 through the left side wall of the chuck 1, and the elastic clamping core 2 can be fixed in the chuck 1 by the screw 5.

[0032] Optionally, as shown in Figure 1 and Figure 2 , the electric spark perforating machine pneumatic copper pipe clamping device further comprises a plug screw 12, the right end of the chuck 1 is provided with an air inlet 13, the left end of the air inlet 13 is communicated with the sliding groove, the right end of the air inlet 13 is communicated with the gas conveying mechanism, the gas conveying mechanism is used to input gas through the air inlet 13 to drive the piston rod 4 to slide in the sliding groove, and the plug screw 12 is detachably assembled at the air inlet 13.

[0033] In the embodiment, the gas delivery mechanism inputs gas into the sliding groove through the gas inlet 13, and uses the gas to push the piston rod 4 to slide to the left in the sliding groove, so that the piston rod 4 presses the clamping sheet body 21, and the clamping sheet body 21 and the elastic clamping core 2 clamp the copper pipe. On the one hand, by opening the gas inlet 13, the spring 3 and the piston rod 4 can be conveniently installed into the sliding groove, and on the other hand, the gas delivery mechanism can input gas into the sliding groove through the gas inlet 13 to push the piston rod 4 to move. Secondly, by installing the hole plug screw 12, the gas inlet 13 can be plugged to prevent the spring 3 and the piston rod 4 from separating from the sliding groove through the gas inlet 13.

[0034] Optionally, as shown in Figure 1 , Figure 3 and Figure 4 , the pneumatic copper pipe clamping device of the electric spark perforator further comprises a gas delivery mechanism body 61 and a main shaft 62, a first gas passage 11 is opened on the chuck 1, and the first gas passage 11 is used for inputting gas to drive the piston rod 4 to move;

[0035] The main shaft 62 penetrates and is rotationally connected to the gas delivery mechanism body 61, the main shaft 62 is located at the upper end of the chuck 1 and is threadedly connected with the chuck 1, a second gas passage 621 is opened on the main shaft 62, an air inlet hole 611 and an annular air groove 612 are opened on the gas delivery mechanism body 61, the air inlet hole 611 communicates with the second gas passage 621 through the annular air groove 612, and the second gas passage 621 communicates with the first gas passage 11.

[0036] Specifically, the annular air groove 612 is a groove with a ring structure.

[0037] In the embodiment, on the one hand, by opening the annular air groove 612 on the gas delivery mechanism body 61, after gas is input into the air inlet hole 611, the main shaft 62 can input the gas into the second gas passage 621 through the annular air groove 612 at any angle. On the other hand, the first gas passage 11 is opened on the chuck 1 and communicates with the second gas passage 621, so that the gas can pass through the second gas passage 621, the first gas passage 11 and act on the piston rod 4 in sequence to drive the piston rod 4 to move to the left.

[0038] Optionally, as shown in Figure 3 and Figure 4 , the gas delivery mechanism further comprises a first bearing, a second bearing 63 and a circlip 64, a rotating position is opened at the upper end of the gas delivery mechanism body 61, the first bearing is arranged in the rotating position, and the second bearing 63 and the circlip 64 are sequentially arranged from top to bottom between the lower end of the gas delivery mechanism body 61 and the main shaft 62.

[0039] By setting the bearing into the rotating position on the gas conveying mechanism body 61, the bearing of the main shaft 62 and the gas conveying mechanism body 61 can be kept concentric, and the bearing is more durable. In addition, the snap spring 64 is arranged to limit the lower bearing.

[0040] Optionally, as shown in Figure 3 and Figure 4 , the gas conveying mechanism further comprises a first sealing ring 65 and a second sealing ring 66, the first sealing ring 65 and the second sealing ring 66 are sequentially arranged from top to bottom between the main shaft 62 and the gas conveying mechanism body 61, and the first sealing ring 65 and the second sealing ring 66 are located between the first bearing and the second bearing 63.

[0041] In the embodiment, the first sealing ring 65 and the second sealing ring 66 are arranged between the main shaft 62 and the gas conveying mechanism body 61 to seal the main shaft 62 and the gas conveying mechanism body 61.

[0042] Optionally, as shown in Figure 1 and Figure 2 , the electric spark perforating machine pneumatic copper pipe clamping device further comprises a third sealing ring 71 and a fourth sealing ring 72, the third sealing ring 71 is arranged between the main shaft 62 and the chuck 1, and the fourth sealing ring 72 is arranged between the chuck 1 and the piston rod 4.

[0043] In the embodiment, the third sealing ring 71 is arranged between the main shaft 62 and the chuck 1 to seal the main shaft 62 and the chuck 1. The fourth sealing ring 72 is arranged between the chuck 1 and the piston rod 4 to seal the chuck 1 and the piston rod 4.

[0044] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A pneumatic copper tube clamping device for an electrical discharge machining (EDM) machine, characterized in that, The device includes a gas delivery mechanism, a chuck (1), an elastic core (2), a clamping plate (21), a piston rod (4), and a spring (3). The elastic core (2) is installed in the chuck (1). The clamping plate (21) is located on the right side of the elastic core (2). A copper tube is placed between the elastic core (2) and the clamping plate (21). A sliding groove is provided on the chuck (1) that passes through the right side wall of the chuck (1). The piston rod (4) is slidably connected to the sliding groove. The left end of the piston rod (4) passes through the right side wall of the chuck (1) and abuts against the clamping plate (21). The spring (3) is located in the sliding groove. One end of the spring (3) is connected to the piston rod (4), and the other end is connected to the chuck (1). The spring (3) is used to drive the piston rod (4) to reset. The gas delivery mechanism is connected to the chuck (1) and is used to drive the piston rod (4) to approach the clamping plate (21).

2. The pneumatic copper tube clamping device for an EDM drilling machine according to claim 1, characterized in that, It also includes a screw (5), which is threaded to the left side wall of the collet (1), and the right end of the screw (5) passes through the left side wall of the collet (1) and is connected to the elastic core (2).

3. The pneumatic copper tube clamping device for an EDM drilling machine according to claim 2, characterized in that, It also includes a plugging screw (12), and the right end of the chuck (1) is provided with an air inlet (13). The left end of the air inlet (13) is connected to the sliding groove, and the right end of the air inlet (13) is connected to the gas delivery mechanism. The gas delivery mechanism is used to introduce gas through the air inlet (13) to drive the piston rod (4) to slide in the sliding groove. The plugging screw (12) can be detached and assembled at the air inlet (13).

4. The pneumatic copper tube clamping device for an EDM drilling machine according to claim 1, characterized in that, It also includes a gas delivery mechanism body (61) and a main shaft (62). The chuck (1) is provided with a first gas channel (11), which is used to introduce gas to drive the piston rod (4) to move. The main shaft (62) passes through and is rotatably connected to the main body (61) of the gas conveying mechanism. The main shaft (62) is located at the upper end of the chuck (1) and is threadedly connected to the chuck (1). A second gas channel (621) is provided on the main shaft (62). An air inlet (611) and an annular gas groove (612) are provided on the main body (611). The air inlet (611) is connected to the second gas channel (621) through the annular gas groove (612). The second gas channel (621) is connected to the first gas channel (11).

5. The pneumatic copper tube clamping device for an EDM drilling machine according to claim 4, characterized in that, The gas delivery mechanism further includes a first bearing, a second bearing (63), and a retaining ring (64). The upper end of the main body (61) of the gas delivery mechanism has a rotating position, in which the first bearing is installed. The lower end of the main body (61) of the gas delivery mechanism and the main shaft (62) are arranged from top to bottom with the second bearing (63) and the retaining ring (64).

6. The pneumatic copper tube clamping device for an EDM drilling machine according to claim 5, characterized in that, The gas delivery mechanism further includes a first sealing ring (65) and a second sealing ring (66). The first sealing ring (65) and the second sealing ring (66) are arranged sequentially from top to bottom and are both located between the main shaft (62) and the main body (61) of the gas delivery mechanism. The first sealing ring (65) and the second sealing ring (66) are located between the first bearing and the second bearing (63).

7. The pneumatic copper tube clamping device for an EDM drilling machine according to claim 6, characterized in that, It also includes a third sealing ring (71) and a fourth sealing ring (72). The third sealing ring (71) is provided between the main shaft (62) and the chuck (1), and the fourth sealing ring (72) is provided between the chuck (1) and the piston rod (4).

Images