CNC tool jig for drilling deep hole

Abstract

The utility model relates to the field of tool jigs, and discloses a deep hole drilling CNC tool jig which comprises a bottom plate and table legs, the table legs are fixedly arranged at the four corners of the bottom of the bottom plate, a positioning and clamping mechanism is arranged on the surface of the bottom plate, and a drilling mechanism is fixedly arranged on the surface of the bottom plate and corresponds to one side of the positioning and clamping mechanism. According to the positioning and clamping mechanism, the guide block and the tool jig, the stability of the tool jig is remarkably improved, the fixing block is specially designed in the guide block, the fixity of a workpiece is effectively enhanced, the chip removal groove is designed in the bottom of the tool jig, the chip removal groove is formed in the bottom of the tool jig, and therefore the chip removal effect of the tool jig is improved, and the service life of the tool jig is prolonged. And meanwhile, a small chip removal fan is installed on one side of the jig, an air outlet of the fan directly faces the chip removal groove, the chips can be quickly blown out of the chip removal groove with the help of wind power, and the chips are prevented from being accumulated in the tool jig.

Description

TECHNICAL FIELD

[0001] The utility model relates to tooling fixture field, concretely is a kind of drilling deep hole CNC tooling fixture. BACKGROUND

[0002] In aerospace, automobile, mould manufacturing and other industries, deep hole machining is indispensable process, these industries need high-precision, high-efficiency deep hole machining to meet the performance requirements of parts, deep hole usually needs higher machining precision and better surface finish, the progress of computer numerical control (CNC) technology greatly improves the production efficiency and machining precision of manufacturing industry, with the popularization of CNC machine tool, many complex machining tasks become feasible, including deep hole machining, modern CNC machine tool has multi-axis linkage, real-time monitoring and automatic measurement and other functions, so that deep hole machining becomes more accurate and flexible, in deep hole machining, the design and application of tooling fixture are crucial, tooling fixture can not only ensure the stability of workpiece, but also improve machining efficiency and precision, the current tooling fixture has the problem of unstable clamping, leading to poor machining quality, in addition, the debris generated in the drilling process cannot be discharged in time, which also affects the quality and efficiency of drilling, therefore, we provide a kind of drilling deep hole CNC tooling fixture. SUMMARY

[0003] (I) technical problem solved

[0004] In view of the deficiencies of prior art, the utility model provides a kind of drilling deep hole CNC tooling fixture, solves the above-mentioned problems.

[0005] (II) technical scheme

[0006] To realize the above-mentioned purpose, the utility model provides the following technical scheme: a kind of drilling deep hole CNC tooling fixture, including bottom plate, table leg, bottom plate's bottom four corners are fixedly arranged with table leg, the surface of bottom plate is provided with positioning clamping mechanism, the surface of bottom plate is provided with drilling mechanism corresponding to the other side of positioning clamping mechanism, the surface of bottom plate is provided with fan corresponding to the other side of positioning clamping mechanism;

[0007] The positioning clamping mechanism includes support seat, connecting shaft, cylinder one, clamping block, connecting sliding block and support plate.

[0008] The upper surface of the bottom plate is fixedly connected with support seat, the plane surface of the support seat is fixedly installed with cylinder one, the upper surface of the support seat is close to the boundary and is circularly arranged with four connecting blocks, and the connecting blocks of the support seat are rotatably connected with connecting shafts.

[0009] The support plate is cross-shaped, and a through hole is formed at the cross intersection of the support plate, a piston rod of the cylinder one is fixedly connected with the support plate through the through hole of the support plate, and four waist-shaped holes are equidistantly formed on the cross edge surface of the support plate;

[0010] The other end of the connecting shaft is rotationally connected with a connecting sliding block, the other end of the connecting sliding block not connected with the connecting shaft is slidingly connected with the waist-shaped hole of the support plate, and the connecting sliding block is fixedly connected with the clamping block through the waist-shaped hole of the support plate.

[0011] Preferably, a chip removal groove is formed around the support seat on the bottom plate, the chip removal groove is formed in a spiral shape from the upper surface of the bottom plate to the bottom surface of the bottom plate, and the blowing port of the fan faces the chip removal groove.

[0012] Preferably, the drilling mechanism comprises two short sliding rods, a guide block, two sliding blocks, a guide hole, two springs two, and a fixed block, the upper surface of the bottom plate is fixedly provided with the two short sliding rods symmetrically at two sides corresponding to the positioning and clamping mechanism, the circular arc surface of the guide block is fixedly connected with the two sliding blocks symmetrically, the sliding blocks are slidingly connected with the short sliding rods, the guide hole is formed through the middle plane of the guide block to the other plane, a groove is formed in the other plane of the guide block, four springs two are arranged in a circumferential array on the inner wall of the groove of the guide block, and the other end of the spring two is fixedly connected with the fixed block.

[0013] Preferably, the drilling mechanism further comprises a spring one, a drill bit, a drill bit seat, a long sliding rod, a cylinder two, and a sliding plate, the upper surface of the bottom plate is fixedly provided with the long sliding rod on one side corresponding to one of the short sliding rods, a plate is fixedly connected to the side wall of the long sliding rod away from the short sliding rod, the cylinder two is fixedly connected to the side plate of the long sliding rod, the sliding plate is slidingly connected to the long sliding rod, the piston rod of the cylinder two is fixedly connected to the bottom surface of the sliding plate, the drill bit seat is fixedly connected to the upper side of the guide hole on the bottom surface of the sliding plate, the drill bit is fixedly connected to the other end surface of the drill bit seat, the spring one is fixedly connected to the periphery of the drill bit seat, and the other end of the spring one is fixedly connected to the plane of the guide block.

[0014] (Three) beneficial effects

[0015] Compared with the prior art, the drilling deep hole CNC tool jig has the following beneficial effects:

[0016] 1. The deep hole drilling CNC fixture is provided with a positioning and clamping mechanism and a guide block, the stability of the fixture is significantly improved, a fixed block is specially designed in the guide block, the fixing of the workpiece is effectively enhanced, thereby further solving the problem of unstable clamping, the structure ensures that the workpiece can always maintain accurate positioning during machining, prevents machining defects caused by vibration or displacement, and in addition, the fixed block tightly fixes the workpiece in the guide block, even under high load or high-speed machining conditions, the displacement of the workpiece can be effectively reduced, and high machining precision is ensured.

[0017] 2. The deep hole drilling CNC fixture is provided with a chip removal groove at the bottom of the fixture to effectively discharge the cutting chips generated during machining, and a small chip removal fan is installed on one side of the fixture, and the air outlet of the fan directly faces the chip removal groove, so that the cutting chips can be quickly blown out from the chip removal groove with the help of wind force, and the cutting chips are prevented from accumulating in the fixture. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the utility model;

[0019] Figure 2 It is a drilling mechanism schematic view of the utility model;

[0020] Figure 3 It is a positioning and clamping mechanism schematic view of the utility model;

[0021] Figure 4 It is a positioning and clamping mechanism sectional view schematic view of the utility model;

[0022] Figure 5 It is a drilling mechanism sectional view schematic view of the utility model;

[0023] Figure 6 It is Figure 2 A local enlarged schematic view in the utility model.

[0024] In the figure: 1, bottom plate; 2, fan; 3, short slide rod; 4, chip removal groove; 5, table leg; 6, support seat; 7, connecting shaft; 8, cylinder one; 9, clamping block; 10, guide block; 11, sliding block; 12, spring one; 13, drill bit; 14, drill bit seat; 15, long slide rod; 16, cylinder two; 17, connecting sliding block; 18, support plate; 19, guide hole; 20, spring two; 21, fixed block; 22, sliding plate. DETAILED DESCRIPTION

[0025] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] Please refer to Figures 1-6 A deep hole drilling CNC tool jig, including bottom plate 1, table leg 5, the bottom plate 1 four corners are fixedly provided with table leg 5, the surface of bottom plate 1 is provided with positioning and clamping mechanism, the surface of bottom plate 1 is provided with drilling mechanism corresponding to one side of positioning and clamping mechanism, the surface of bottom plate 1 is provided with fan 2 corresponding to the other side of positioning and clamping mechanism, the air outlet of fan 2 is directly opposite to the chip groove, by using wind power, the cutting chip can be quickly blown out from the chip groove, to prevent the cutting chip from accumulating inside the tool jig;

[0027] The positioning and clamping mechanism comprises a support seat 6, a connecting shaft 7, a cylinder 8, a clamping block 9, a connecting sliding block 17 and a support plate 18.

[0028] The upper surface of the bottom plate 1 is fixedly connected with the support seat 6, the support seat 6 is fixedly installed in the plane surface not connected with the bottom plate 1, the upper surface of the support seat 6 is close to the boundary and has four connecting blocks in a circular array, and the connecting blocks of the support seat 6 are all rotatably connected with the connecting shaft 7.

[0029] The support plate 18 is in the shape of a cross, the cross intersection of the support plate 18 is provided with a through hole, the piston rod of the cylinder 8 is fixedly connected with the support plate 18 through the through hole of the support plate 18, and four waist-shaped holes are equidistantly arranged on the cross edge surface of the support plate 18.

[0030] The other end of the connecting shaft 7 is rotatably connected with the connecting sliding block 17, the other end of the connecting sliding block 17 not connected with the connecting shaft 7 is slidably connected with the waist-shaped hole of the support plate 18, and the connecting sliding block 17 is fixedly connected with the clamping block 9 through the waist-shaped hole of the support plate 18.

[0031] Further, the chip groove 4 is arranged around the support seat 6 on the bottom plate 1, the chip groove 4 is spirally arranged from the upper surface of the bottom plate 1 to the bottom surface of the bottom plate 1, and the blowing port of the fan 2 faces the chip groove 4.

[0032] Further, the drilling mechanism comprises two short sliding rods 3, a guide block 10, two sliding blocks 11, a guide hole 19, two springs 20, a fixed block 21, two short sliding rods 3 are symmetrically and fixedly installed on the upper surface of the bottom plate 1 corresponding to the two sides of the positioning and clamping mechanism, two sliding blocks 11 are symmetrically and fixedly connected on the arc surface of the guide block 10, the sliding blocks 11 are slidably connected with the short sliding rods 3, the guide hole 19 is formed in the middle of the plane surface of the guide block 10 and penetrates to the other plane, the guide hole 19 can accurately drill the object to be processed, and a groove is formed in the other plane of the guide block 10, four springs 20 are arranged in the circumferential array on the inner wall of the groove of the guide block 10, and the other end of the spring 20 is fixedly connected with the fixed block 21, the fixed block 21 is used for tightly fixing the workpiece in the guide block, and even in the case of high load or high-speed processing, the displacement of the workpiece can be effectively reduced, and the high precision of processing is ensured.

[0033] Further, the drilling mechanism further comprises a spring 12, a drill bit 13, a drill bit seat 14, a long sliding rod 15, a cylinder 16, a sliding plate 22, the long sliding rod 15 is fixedly installed on one side of the corresponding one of the short sliding rods 3 on the upper surface of the bottom plate 1, a plate is fixedly connected on the side wall of the long sliding rod 15 away from the short sliding rod 3, the cylinder 16 is fixedly installed on the side plate of the long sliding rod 15, the sliding plate 22 is slidably connected on the long sliding rod 15, the piston rod of the cylinder 16 is fixedly connected with the bottom surface of the sliding plate 22, the drill bit seat 14 is fixedly connected above the guide hole 19 on the bottom surface of the sliding plate 22, the drill bit 13 is fixedly connected on the other end surface of the drill bit seat 14, the spring 12 is fixedly connected on the periphery of the drill bit seat 14, and the other end of the spring 12 is fixedly connected with the plane of the guide block 10.

[0034] Working principle: the workpiece to be processed is placed in the clamping block 9, the cylinder 8 is started by CNC control, the piston rod on the cylinder 8 drives the support plate 18 to move up and down, the movement of the support plate 18 applies force to the connecting slider 17, the connecting slider 17 is connected with the connecting shaft 7 below to rotate, so that the connecting slider 17 can slide in the waist-shaped hole of the support plate 18, and because the connecting slider 17 is fixedly connected with the clamping block 9, therefore the sliding of the connecting slider 17 makes the clamping block 9 can be clamped according to the diameter of the workpiece to be processed, after the workpiece to be processed is clamped, the cylinder 16 is started by CNC, the piston rod on the cylinder 16 drives the sliding plate 22 to move up and down, the drill bit seat 14 connected with the sliding plate 22, the guide block 10 connected with the drill bit seat 14 through the spring 12 all move up and down with the sliding plate 22, the guide block 10 is sleeved on the workpiece to be processed, the workpiece to be processed is clamped by the stretching and compression of the spring 20 and the fixing block 21, the workpiece to be processed is further fixed, the motor in the drill bit seat 14 is started by the control of the CNC to drive the drill bit 13 to rotate and accurately drill the workpiece to be processed through the guide hole 19, the fan 2 is started when drilling, the air outlet of the fan 2 directly faces the chip removal groove, the cuttings can be quickly blown out from the chip removal groove by using the wind power, so as to prevent the cuttings from accumulating in the tool jig.

[0035] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A CNC tooling fixture for drilling deep holes, comprising a base plate (1) and table legs (5), wherein the table legs (5) are fixedly provided at the four corners of the bottom of the base plate (1), characterized in that: A positioning and clamping mechanism is provided on the surface of the base plate (1), a drilling mechanism is provided on one side of the base plate (1) corresponding to the positioning and clamping mechanism, and a fan (2) is provided on the other side of the base plate (1) corresponding to the positioning and clamping mechanism. The positioning and clamping mechanism includes a support base (6), a connecting shaft (7), a cylinder (8), a clamping block (9), a connecting slider (17), and a support plate (18). A support base (6) is fixedly connected to the upper surface of the base plate (1). A cylinder (8) is fixedly installed in the middle of the plane of the support base (6) that is not connected to the base plate. Four connecting blocks are arranged in a circular array near the boundary on the upper surface of the support base (6). Each connecting block of the support base (6) is rotatably connected to a connecting shaft (7). The support plate (18) is cross-shaped, and a through hole is provided at the intersection of the cross of the support plate (18). The piston rod of the cylinder (8) passes through the through hole of the support plate (18) and is fixedly connected to the support plate (18). Four waist-shaped holes are provided at equal intervals on the cross-shaped side surface of the support plate (18). The other end of the connecting shaft (7) is rotatably connected to the connecting slider (17). The other end of the connecting slider (17) that is not connected to the connecting shaft (7) is slidably connected to the waist-shaped hole of the support plate (18). The connecting slider (17) is fixedly connected to the clamping block (9) through the waist-shaped hole of the support plate (18).

2. The CNC tooling fixture for drilling deep holes according to claim 1, characterized in that: A chip removal groove (4) is provided on the base plate (1) around the support seat (6). The chip removal groove (4) is spirally opened from the upper surface of the base plate (1) to the bottom surface of the base plate (1), and the air outlet of the fan (2) faces the chip removal groove (4).

3. The CNC tooling fixture for drilling deep holes according to claim 1, characterized in that: The positioning and clamping mechanism also includes the other end of the connecting shaft (7) being rotatably connected to the connecting slider (17). The drilling mechanism includes a short slide rod (3), a guide block (10), a sliding block (11), a guide hole (19), a second spring (20), and a fixing block (21). Two short slide rods (3) are symmetrically fixedly installed on the upper surface of the base plate (1) corresponding to the two sides of the positioning and clamping mechanism. Two sliding blocks (11) are symmetrically fixedly connected on the arc surface of the guide block (10). The sliding block (11) and the short slide rod (3) are slidably connected. A guide hole (19) penetrating to another plane is opened in the middle of the plane of the guide block (10). A groove is opened on the other plane of the guide block (10). Four second springs (20) are arranged in a circular array on the inner wall of the groove opened in the guide block (10). The other end of the second spring (20) is fixedly connected to the fixing block (21).

4. The CNC tooling fixture for drilling deep holes according to claim 3, characterized in that: The drilling mechanism also includes a spring (12), a drill bit (13), a drill bit seat (14), a long slide rod (15), a cylinder (16), and a sliding plate (22). A long slide rod (15) is fixedly installed on the upper surface of the base plate (1) corresponding to one of the short slide rods (3). A plate is fixedly connected to the side wall of the long slide rod (15) away from the short slide rod (3). A cylinder (16) is fixedly installed on the side plate of the long slide rod (15). A sliding plate (22) is also slidably connected. The piston rod of the second cylinder (16) is fixedly connected to the bottom surface of the sliding plate (22). A drill bit seat (14) is fixedly connected above the guide hole (19) on the bottom surface of the sliding plate (22). A drill bit (13) is fixedly connected to the other end surface of the drill bit seat (14). A spring (12) is fixedly connected to the periphery of the drill bit seat (14). The other end of the spring (12) is fixedly connected to the plane of the guide block (10).

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