Gun drill machining device for machining multiple holes of horizontal numerical control lathe

Abstract

The utility model discloses a gun drill machining device for machining multiple holes of a horizontal numerical control lathe, belongs to the technical field of lathe machining, and solves the problems of low machining efficiency and low precision of multiple holes in the prior art. The gun drill machining device comprises a numerical control lathe, a main shaft is arranged on the numerical control lathe, a connecting rod is connected to the main shaft, a connector is arranged at one end of the connecting rod, a gun drill is arranged on the connector, and a T-shaped tool apron carriage capable of moving front and back and left and right is arranged on the numerical control lathe. A clamp assembly used for clamping and installing a workpiece is arranged on the T-shaped tool apron carriage, a plurality of positioning holes matched with the gun drill are formed in the clamp assembly, a V-shaped groove used for chip removal is formed in the gun drill, and the gun drill is communicated with a cooling system of the numerical control lathe. According to the gun drill machining device for machining the multiple holes in the horizontal numerical control lathe, one-time clamping and multi-hole machining can be achieved, and the machining efficiency and quality of products are effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to lathe processing technical field especially, a kind of gun drill processing device for processing multi-hole horizontal numerical control lathe. BACKGROUND

[0002] Deep hole machining is generally present in mechanical industry, and the current machining generally adopts chuck type clamping workpiece rotation, gun drill fixed mode to process, which is suitable for single-hole machining of workpiece, but it does not show obvious advantage for multi-hole machining of the same workpiece, because it needs to clamp and correct workpiece multiple times for machining each hole, and it needs to spend a lot of time for each time correction and clamping, thereby leading to low machining efficiency, and the correction process is prone to error, thereby leading to unstable machining dimension precision, form and position tolerance of part, which is not conducive to product batch production, at the same time, since gun drill is a kind of cutting edge asymmetrically distributed tool, when the rotation center offset of workpiece is too large during rotation, drill tip is prone to impact, causing tool shank to vibrate, positioning is not accurate, leading to poor straightness of hole. SUMMARY

[0003] The utility model solves the technical problem in the prior art, and provides a gun drill processing device for processing multi-hole horizontal numerical control lathe, which can clamp once, multi-hole machining, and the workpiece simultaneously machined has good coaxiality, dimension precision, form and position tolerance and surface finish, effectively improves product machining quality, and has the characteristics of wide application range and strong practicability.

[0004] The utility model discloses the technical scheme that a kind of gun drill processing device for processing multi-hole horizontal numerical control lathe, including numerical control lathe, the numerical control lathe is equipped with main shaft, the main shaft is connected with connecting rod, the connecting rod one end is equipped with connecting head, the connecting head is equipped with gun drill, the numerical control lathe is equipped with the T-shaped tool rest drag plate that can move forward and backward and left and right, the T-shaped tool rest drag plate is equipped with the fixture assembly for clamping and installing workpiece, the fixture assembly is equipped with multiple positioning holes that are adapted to gun drill, the gun drill is equipped with V-shaped groove for chip removal, the gun drill is communicated with the cooling system of numerical control lathe.

[0005] Specifically, the connecting rod is equipped with movable cooling pipe, the gun drill is equipped with cooling hole, one end of the cooling pipe is communicated with the cooling system of numerical control lathe, and the other end is slidably inserted into the cooling hole.

[0006] Preferably, the clamp assembly comprises a bottom plate, a front support plate, a rear support plate and a pneumatic cylinder, the bottom plate is installed on the T-shaped tool holder drag plate, the front support plate and the rear support plate are arranged at the front end and the rear end of the bottom plate respectively, the outer side of the rear support plate is provided with the pneumatic cylinder, the output end of the pneumatic cylinder is connected with a rear pressing plate, a plurality of push rods are arranged on the rear pressing plate, and the end of the push rod away from the rear pressing plate is movably inserted into the rear support plate.

[0007] Further, the clamp assembly further comprises a screw rod and an upper pressing plate, the screw rod is vertically installed on the bottom plate, and the upper pressing plate is sleeved on the screw rod.

[0008] Further, the positioning hole is provided with a guide sleeve, and the hole diameter of the guide sleeve is H7 tolerance with the diameter of the gun drill.

[0009] Further, the gun drill comprises a cutter main body, a center blade, a support guide block, a diameter guide block and a screw, the center blade is installed on one side of a V-shaped groove at the front end of the cutter main body through the screw, and the support guide block and the diameter guide block are installed on grooves at the front end of the cutter main body through the screw.

[0010] Further, adjusting washers are arranged between the diameter guide block, the support guide block and the cutter main body.

[0011] Beneficial effects

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] The utility model discloses a horizontal numerical control lathe is used for processing the gun drill processing device of many holes, through the removal of the tool holder component on numerical control lathe, then installs the fixture component on T type tool holder drag board, makes the fixture component adjust through having the T type tool holder drag board of mobile function, realizes the movement of before and after and left and right, and then adjusts the punching position, realizes and can once clamping, multi -position punching, after processing a hole, through the relative position of moving T type tool holder drag board, can process the next hole, need not clamping again, effectively improve processing efficiency, when the workpiece is punched, first, place the workpiece on the bottom plate of fixture component, under the action of pneumatic cylinder, drive rear pressing plate to move to left, and then drive multiple push rods to compress the workpiece, realize the locking of horizontal direction, then through the rotation nut on screw rod, compress the vertical locking of workpiece to upper pressing plate, then install connecting rod on chuck, gun drill is installed on connecting head through locking bolt, finally, gun drill is punched through guide bushing to workpiece, during the rotation, guide bushing can correct the positioning inaccuracy caused by gun drill rotation, eliminate the vibration of tool bar, prevent the tool tip fragmentation caused by fatigue failure, at the same time, high pressure cooling liquid reaches drill tip lubrication cooling through the cooling pipe in connecting rod, and high pressure cooling liquid removes the iron filings from workpiece interior along the V type groove outside drill rod, the whole drilling process need not set up the tool withdrawal and chip removal operation, save time, improve efficiency, convenient to use, wide application range. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the front view structure schematic drawing of the utility model;

[0015] Figure 2 It is the plan structure schematic drawing of the utility model;

[0016] Figure 3 It is the plan structure enlarged schematic drawing of fixture component in the utility model;

[0017] Figure 4 It is the front view structure enlarged schematic drawing of fixture component in the utility model;

[0018] Figure 5 It is the structure enlarged schematic drawing of gun drill in the utility model;

[0019] Figure 6 It is the explosion schematic drawing of gun drill in the utility model.

[0020] Wherein: 1-numerical control lathe, 2-clamp assembly, 4-workpiece, 5-connecting rod, 6-connector, 7-gun drill, 8-T-shaped tool holder drag plate, 9-positioning hole, 10-guide sleeve, 11-V-shaped groove, 12-cooling pipe, 13-cooling hole, 21-front support plate, 22-bottom plate, 23-push rod, 24-rear support plate, 25-cylinder, 26-rear pressing plate, 27-screw rod, 28-upper pressing plate, 71-tool body, 72-diameter guide block, 73-adjusting washer, 74-center blade, 75-supporting guide block, 76-groove, 77-screw. DETAILED DESCRIPTION

[0021] The utility model makes further explanation in combination with specific embodiment in the drawing.

[0022] Referring to Figures 1-6 As shown in the utility model discloses a horizontal numerical control lathe for processing multi-hole gun drill processing device includes numerical control lathe 1, and numerical control lathe 1 is equipped with the main shaft, and the main shaft is connected with connecting rod 5, and one end of connecting rod 5 is equipped with connector 6, and connector 6 is equipped with gun drill 7, and numerical control lathe 1 is equipped with T-shaped tool holder drag plate 8 that can move forward and backward and left and right, and T-shaped tool holder drag plate 8 is equipped with clamp assembly 2 for clamping and installing workpiece 4, and clamp assembly 2 is equipped with a plurality of positioning holes 9 that are matched with gun drill 7, and gun drill 7 is equipped with V-shaped groove 11 for chip removal, and gun drill 7 is communicated with the cooling system of numerical control lathe 1, by removing the tool holder assembly on numerical control lathe 1, then clamp assembly 2 is installed on T-shaped tool holder drag plate 8, so that clamp assembly 2 is adjusted by the T-shaped tool holder drag plate 8 with the movement function, realizes forward and backward and left and right movement, and then adjusts the punching position, realizes that it can be clamped once, multi-position punching, after processing a hole, through the relative position of T-shaped tool holder drag plate 8, the next hole processing can be carried out, without re-clamping, effectively improve the processing efficiency, when punching the workpiece, first, workpiece 4 is placed on the bottom plate of clamp assembly 2, under the action of cylinder 25, rear pressing plate 26 is driven to move left, and then a plurality of push rods 23 are driven to press workpiece 4, realizing horizontal direction locking, then by rotating the nut on screw rod 27, upper pressing plate 28 is compressed to lock workpiece 4 vertically, then connecting rod 5 is installed on chuck 3, gun drill 7 is installed on connector 6 through locking bolt, finally, gun drill 7 drills workpiece 4 through guide sleeve 10, during rotation, guide sleeve 10 can correct the positioning error caused by gun drill 7 rotation, eliminate the wobble of the tool bar, prevent the tool tip from breaking due to fatigue failure, at the same time, high-pressure coolant reaches the drill tip through the cooling pipe 12 in the connecting rod 5 for lubrication and cooling, and the high-pressure coolant removes the iron filings from the workpiece 4 along the V-shaped groove 11 outside the drill rod, the whole drilling process does not need to set the tool retracting and chip removal operation, saves time and improves efficiency.

[0023] Specifically, the connecting rod 5 is provided with a movable plug-in cooling pipe 12, and the gun drill 7 is provided with a cooling hole 13. One end of the cooling pipe 12 is communicated with the cooling system of the numerical control lathe 1, and the other end is slidably inserted into the cooling hole 13. The cooling pipe 12 is connected with the cooling system through a rotary joint, which prevents the rotation of the cooling pipe 12 from affecting the communication of the pipeline. The cooling pipe 12 is only placed in the connecting rod 5 and does not rotate with it, so there is no problem of winding. Thus, the smooth delivery of the cooling liquid is ensured.

[0024] Preferably, the clamp assembly 2 comprises a bottom plate 22, a front support plate 21, a rear support plate 24 and a gas cylinder 25. The bottom plate 22 is installed on the T-shaped tool holder drag plate 8. The front support plate 21 and the rear support plate 24 are arranged at the front and rear ends of the bottom plate 22, respectively. The gas cylinder 25 is arranged on the outer side of the rear support plate 24. The output end of the gas cylinder 25 is connected with a rear pressing plate 26. The rear pressing plate 26 is provided with a plurality of push rods 23. The end of the push rod 23 away from the rear pressing plate 26 is movably inserted into the rear support plate 24. First, the workpiece 4 is placed on the bottom plate of the clamp assembly 2. Under the action of the gas cylinder 25, the rear pressing plate 26 moves to the left, thereby driving the plurality of push rods 23 to press the workpiece 4, achieving horizontal locking and fast clamping installation, and improving the clamping efficiency.

[0025] Further, the clamp assembly 2 further comprises a screw 27 and an upper pressing plate 28. The screw 27 is vertically installed on the bottom plate 22. The upper pressing plate 28 is sleeved on the screw 27. By rotating the nut on the screw 27, the upper pressing plate 28 is pressed to lock the workpiece 4 in the longitudinal direction, so as to prevent the workpiece 4 from moving and ensure the machining precision.

[0026] Further, the positioning hole 9 is provided with a guide sleeve 10. The diameter tolerance between the guide sleeve 10 and the gun drill 7 is H7. When the gun drill enters the guide sleeve 10, it needs to be operated at low speed to ensure the matching precision.

[0027] Further, the gun drill 7 comprises a tool body 71, a center blade 74, a support guide block 75, a diameter guide block 72 and a screw 77. The center blade 74 is installed on one side of the V-shaped groove 11 at the front end of the tool body 71 through the screw 77. The support guide block 75 and the diameter guide block 72 are installed on the recess 76 at the front end of the tool body 71 through the screw 77. The V-shaped groove 11 is arranged to discharge iron filings during the cutting process. The entire drilling process does not need to set the tool withdrawal and chip removal operation, which saves time and improves efficiency. The support guide block 75 and the diameter guide block 72 ensure the position precision and stability of the tool during work, thereby ensuring the machining quality and efficiency.

[0028] Further, adjusting shims 73 are arranged between the diameter guide block 72, the support guide block 75 and the tool body 71. The size of the adjusting shims 73 is adjusted to meet different use requirements.

[0029] The horizontal numerical control lathe of the embodiment is used for processing the gun drill machining device for processing multiple holes, in use, the tool holder assembly on the numerical control lathe 1 is removed, then the clamp assembly 2 is installed on the T-shaped tool holder drag plate 8, so that the clamp assembly 2 is adjusted by the T-shaped tool holder drag plate 8 with the moving function, the front and back and left and right movements are realized, and then the punching position is adjusted, the one-time clamping and multiple-position punching are realized, after one hole is processed, the next hole can be processed by moving the relative position of the T-shaped tool holder drag plate 8, without re-clamping, the processing efficiency is effectively improved, in the process of punching the workpiece, the workpiece 4 is placed on the bottom plate of the clamp assembly 2, under the action of the cylinder 25, the rear pressing plate 26 is moved to the left, and then the multiple push rods 23 press the workpiece 4, the horizontal locking is realized, then the screw nut is rotated on the screw rod 27, the upper pressing plate 28 is pressed to lock the workpiece 4 in the longitudinal direction, then the connecting rod 5 is installed on the chuck 3, the gun drill 7 is installed on the connecting head 6 through the locking bolt, finally the gun drill 7 drills the workpiece 4 through the guide sleeve 10, in the rotating process, the guide sleeve 10 can correct the inaccurate positioning caused by the rotation of the gun drill 7, eliminate the tool bar vibration, prevent the tool tip from being broken due to fatigue failure, at the same time, the high-pressure cooling liquid reaches the drill tip through the cooling pipe 12 in the connecting rod 5 to lubricate and cool, and the high-pressure cooling liquid discharges the iron filings from the inside of the workpiece 4 along the V-shaped groove 11 outside the drill rod, the whole drilling process does not need to set the tool retracting and chip removing operation, time is saved and efficiency is improved.

[0030] The above only describes the preferred embodiments of the utility model, and it should be noted that for those skilled in the art, without departing from the structure of the utility model, a number of modifications and improvements can be made, which will not affect the effect and practicality of the utility model.

Claims

1. A gun drill machining device for machining a perforated gun drill with a horizontal numerical control lathe, comprising a numerical control lathe (1), said numerical control lathe (1) being provided with a main shaft, characterized in that, The main shaft is connected with a connecting rod (5), one end of the connecting rod (5) is provided with a connecting head (6), the connecting head (6) is provided with a gun drill (7), the numerical control lathe (1) is provided with a T-shaped tool holder drag plate (8) which can move forward and backward and left and right, the T-shaped tool holder drag plate (8) is provided with a clamp assembly (2) for clamping a workpiece (4), a plurality of positioning holes (9) matched with the gun drill (7) are formed in the clamp assembly (2), a V-shaped groove (11) for chip removal is formed in the gun drill (7), and the gun drill (7) is communicated with the cooling system of the numerical control lathe (1).

2. A horizontal CNC lathe for machining a multi-hole gun drill machining device according to claim 1, characterized in that, The connecting rod (5) is provided with a movable cooling pipe (12), the gun drill (7) is provided with a cooling hole (13), one end of the cooling pipe (12) is communicated with the cooling system of the numerical control lathe (1), and the other end is slidably inserted into the cooling hole (13).

3. A horizontal CNC lathe for machining a multi-hole gun drill machining device according to claim 1, characterized in that, The clamp assembly (2) comprises a bottom plate (22), a front supporting plate (21), a rear supporting plate (24) and a gas cylinder (25), the bottom plate (22) is installed on the T-shaped tool holder drag plate (8), the front supporting plate (21) and the rear supporting plate (24) are arranged at the front end and the rear end of the bottom plate (22) respectively, the gas cylinder (25) is arranged on the outer side of the rear supporting plate (24), the output end of the gas cylinder (25) is connected with a rear pressing plate (26), a plurality of push rods (23) are arranged on the rear pressing plate (26), and one end of the push rod (23) away from the rear pressing plate (26) is movably inserted into the rear supporting plate (24).

4. A horizontal CNC lathe for machining a multi-hole gun drill machining device according to claim 3, characterized in that, The clamp assembly (2) further comprises a screw rod (27) and an upper pressing plate (28), the screw rod (27) is vertically installed on the bottom plate (22), and the upper pressing plate (28) is sleeved on the screw rod (27).

5. A horizontal CNC lathe for machining a multi-hole gun drill machining device according to claim 1, characterized in that, The positioning hole (9) is provided with a guide sleeve (10), and the hole diameter of the guide sleeve (10) is H7 larger than the diameter of the gun drill (7).

6. A horizontal CNC lathe for machining a multi-hole gun drill machining device according to claim 1, characterized in that, The gun drill (7) comprises a tool main body (71), a center blade (74), a support guide block (75), a diameter guide block (72) and a screw (77), the center blade (74) is installed on one side of the V-shaped groove (11) at the front end of the tool main body (71) through the screw (77), and the support guide block (75) and the diameter guide block (72) are installed on the grooves (76) at the front end of the tool main body (71) through the screw (77).

7. A horizontal CNC lathe for machining a multi-hole gun drill machining device according to claim 6, characterized in that, Adjusting washers (73) are arranged between the diameter guide block (72), the support guide block (75) and the tool main body (71).

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