Automatic punching and drilling device

Abstract

The invention relates to an automatic punching and drilling device which comprises a box body and a drilling assembly, the upper end of the box body is provided with a storage groove used for storing cylindrical parts, a circular material distributing cavity is formed below the storage groove, a discharging groove is formed below the circular material distributing cavity, a material distributor is rotationally connected to the interior of the circular material distributing cavity, and a discharging groove is formed below the discharging groove. A guide groove is formed in one side of the circular material distributing cavity, a clamping block used for fixing the cylindrical part is slidably connected into the guide groove, a limiting ring is arranged in the guide groove, an elastic piece is arranged between the clamping block and the limiting ring, the material distributor is coaxially provided with a cam, and the cam is provided with an elastic piece. A U-shaped connecting rod extending out of the guide groove is arranged on the clamping block, and one end of the U-shaped connecting rod is in close contact with the cam under the action of elastic potential energy of the elastic piece; in the drilling machining process, linkage and coordination performance among all the assemblies are good, manual operation is not needed, and the automation degree is high.

Description

Technical Field

[0001] The invention relates to the technical field of drilling processing, in particular to an automatic punching and drilling device. Background Art

[0002] Punching and drilling refers to the operation of drilling a hole in a solid material with a drill. The starting point of the drilling is called the hole mouth, the side is called the hole wall, and the bottom is called the hole bottom. The diameter D of the drilled hole is referred to as the hole diameter, the hole mouth diameter is called the opening hole diameter, the hole bottom diameter is called the final hole diameter, the distance H from the hole mouth to the hole bottom is called the drilling depth, referred to as the hole depth, and a certain section of the drilling is called the hole section.

[0003] For cylindrical parts, it is usually necessary to drill holes on their end faces for matching with other parts, lubrication, manufacturing and testing, etc., such as screw holes, center holes, etc. In the prior art, the common method for drilling holes on the end faces of cylindrical parts is to clamp the cylindrical parts on the three-jaw chuck of a drilling machine, drill holes on the end faces with the drill bit on the drilling machine, and then remove the cylindrical parts from the three-jaw chuck after drilling. This processing method has the following defects: the clamping and disassembly of cylindrical parts usually need to be operated manually, and then the drill bit on the drilling machine is used to drill holes on the end faces. The linkage and coordination performance between the components are poor, and the degree of automation is low. Summary of the invention

[0004] An embodiment of the present invention provides an automatic punching and drilling device, which can solve the problems in the prior art that the clamping and disassembly of cylindrical parts usually need to be performed manually, and then the end surface is drilled using a drill bit on a drilling machine, the linkage and coordination performance between the components are poor, and the degree of automation is low.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: an automatic punching and drilling device, comprising a box body and a drilling assembly, the upper end of the box body is provided with a storage trough for storing cylindrical parts, a circular material distribution cavity is provided below the storage trough, a discharge trough is provided below the circular material distribution cavity, a distributor is rotatably connected inside the circular material distribution cavity, a guide groove is provided on one side of the circular material distribution cavity, a clamping block for fixing cylindrical parts is slidably connected inside the guide groove, a limiting ring is provided inside the guide groove, an elastic member is provided between the clamping block and the limiting ring, a cam is coaxially provided on the distributor, a "U"-shaped connecting rod extending out of the guide groove is provided on the clamping block, and one end of the "U"-shaped connecting rod is in close contact with the cam under the elastic potential energy of the elastic member;

[0006] A feeding hole is provided on the front surface of the box body, and an intermittent rotating mechanism for driving the distributor and the cam to rotate intermittently is arranged on the front side of the box body.

[0007] Preferably, the distributor comprises a distributor disc rotatably connected to the inside of a circular distributor cavity, and a plurality of drop grooves are arranged in a circular array on the edge of the distributor disc.

[0008] Preferably, the number of the protrusions of the cam is the same as the number of the blanking grooves.

[0009] Preferably, the intermittent rotating mechanism includes a motor, a driving wheel is provided at the output end of the motor, a driving pin is eccentrically provided on the driving wheel, a driven wheel is coaxially provided on the material distribution disc, and a driving groove adapted to the driving pin is provided in an annular array on the edge of the driven wheel, and the number of the driving grooves is the same as the number of the blanking grooves.

[0010] Preferably, a locking arc is provided on the driving wheel, and a locking groove adapted to the locking arc is provided in an annular array at the edge of the driven wheel, and the number of the locking grooves is the same as the number of the driving grooves and is arranged at intervals.

[0011] Preferably, an "L"-shaped mounting plate is provided on the front side of the box body, the motor is mounted on the "L"-shaped mounting plate, a driving gear is provided at the output end of the motor, the driving gear is meshed with an intermediate gear rotatably connected to the "L"-shaped mounting plate, an annular cam for driving the drilling assembly to perform a feed motion is provided on the intermediate gear, the intermediate gear is meshed with a driven gear for driving the drilling assembly to perform a rotational motion, and the driven gear is rotatably connected to the "L"-shaped mounting plate.

[0012] Preferably, the drilling assembly comprises a drill rod and a drill bit whose ends are fixedly connected, the "L"-shaped mounting plate is provided with a mounting groove, a guide rod is provided inside the mounting groove, a slider is slidably connected to the guide rod, a spring is sleeved on the guide rod, a sleeve fixedly connected to the slider is rotatably connected to the rear of the drill rod, and a roller is provided on the sleeve which is in close contact with the cam surface of the annular cam under the elastic potential energy of the spring;

[0013] The "L"-shaped mounting plate is rotatably connected with a shaft sleeve, the inner wall of the shaft sleeve is provided with a keyway, the driven gear is arranged on the shaft sleeve, and the front part of the drill rod is provided with a key protrusion matched with the keyway.

[0014] Preferably, the storage trough is in the shape of a flat funnel.

[0015] Preferably, a "V"-shaped groove is provided on the contact surface of the card block.

[0016] Compared with the prior art, the present invention is characterized in that the box, the drilling assembly, the material storage trough, the circular material distribution cavity, the material discharge trough, the material distributor, the guide groove, the clamping block, the limit ring, the elastic member, the cam, the "U"-shaped connecting rod, the material discharge trough, the feed hole and the intermittent rotating mechanism are arranged in coordination. The intermittent rotating mechanism drives the material distributor and the cam to rotate intermittently. The cylindrical parts in the material storage trough are separated by the material distributor and rotate intermittently with the material distributor. When the material distributor drives the cylindrical parts to rotate to the feed hole, the "U"-shaped connecting rod contacts the concave part of the cam. The clamping block contacts the cylindrical parts under the elastic potential energy of the elastic member. The parts are abutted and fixed, and the drilling assembly performs feed rotation motion to drill holes through the feed holes. After the tool is retracted, the intermittent rotation mechanism drives the divider and the cam to rotate intermittently again. The raised part of the cam will squeeze the "U"-shaped connecting rod outward, so that the "U"-shaped connecting rod drives the block to disengage from the cylindrical part and squeeze the elastic part. The divider drives the cylindrical part to rotate in the circular dividing cavity. When it rotates to the discharge chute, the cylindrical part is discharged from the discharge chute under the action of gravity. During the drilling process, the linkage and coordination performance between the components are good, no manual operation is required, and the degree of automation is high.

[0017] Compared with the prior art, the present invention adopts the matching arrangement of a driving gear, an intermediate gear, an annular cam, a driven gear, a drill rod, a drill bit, a mounting groove, a guide rod, a slider, a spring, a sleeve, a roller, a bushing, a keyway and a key convex. The motor drives the driving gear to rotate, the driving gear drives the intermediate gear to rotate, the intermediate gear drives the annular cam and the driven gear to rotate, and the driven gear drives the drilling assembly to rotate through the keyway inside the bushing and the key convex on the drill rod. At the same time, under the guiding effect of the guide rod on the slider and the elastic potential energy of the spring, the annular cam drives the sleeve to slide back and forth along the length direction of the drill rod through the roller, so that the drill rod drives the drill bit to perform feed rotational motion, and drilling is performed at the end of the cylindrical part, thereby realizing the automation of loading, clamping, drilling and discharging of cylindrical parts, without the need for manual operation, and with a high degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main cross-sectional structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the main structure of part of the present invention;

[0020] Figure 3 It is a rear view structural schematic diagram of the present invention;

[0021] Figure 4 It is a schematic diagram of a partial side view structure of the present invention;

[0022] Figure 5 This is a schematic diagram of the "U"-shaped connecting rod structure of the present invention;

[0023] Figure 6It is a schematic diagram of the structure of the drilling assembly of the present invention;

[0024] Figure 7 It is a schematic diagram of the position structure of the driving gear, the intermediate gear and the driven gear of the present invention.

[0025] In the figure: 1. box body; 2. storage trough; 3. circular distributing cavity; 4. distributing disc; 5. material dropping trough; 6. guide groove; 7. block; 8. limit ring; 9. elastic member; 10. cam; 11. "U"-shaped connecting rod; 12. discharging trough; 13. feeding hole; 14. motor; 15. driving wheel; 16. driving pin; 17. driven wheel; 18. driving groove; 19. locking arc; 20. locking groove; 21. "L"-shaped mounting plate; 22. driving gear; 23. intermediate gear; 24. annular cam; 25. driven gear; 26. drill rod; 27. drill bit; 28. sleeve; 29. ​​mounting groove; 30. guide rod; 31. slider; 32. spring; 33. roller; 34. bushing; 35. keyway; 36. key convex; 37. "V"-shaped slot. DETAILED DESCRIPTION

[0026] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the technical solutions of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] like Figure 1 to Figure 7 As shown, an automatic punching and drilling device comprises a box body 1 and a drilling assembly, a storage trough 2 for storing cylindrical parts is provided at the upper end of the box body 1, a circular material distribution chamber 3 is provided below the storage trough 2, a discharge trough 12 is provided below the circular material distribution chamber 3, a distributor is rotatably connected inside the circular material distribution chamber 3, a guide groove 6 is provided on one side of the circular material distribution chamber 3, a clamping block 7 for fixing cylindrical parts is slidably connected inside the guide groove 6, a limiting ring 8 is provided inside the guide groove 6, an elastic member 9 is provided between the clamping block 7 and the limiting ring 8, a cam 10 is coaxially provided on the distributor, a "U"-shaped connecting rod 11 extending out of the guide groove 6 is provided on the clamping block 7, and one end of the "U"-shaped connecting rod 11 is in close contact with the cam 10 under the elastic potential energy of the elastic member 9;

[0028] A feed hole 13 is provided on the front surface of the box body 1 , and an intermittent rotating mechanism for driving the distributor and the cam 10 to rotate intermittently is provided on the front side of the box body 1 .

[0029] During specific use, the intermittent rotating mechanism drives the divider and the cam 10 to rotate intermittently, and the cylindrical parts in the storage trough 2 are separated by the divider and rotate intermittently with the divider. When the divider drives the cylindrical parts to rotate to the feed hole 13, the "U"-shaped connecting rod 11 contacts the recessed part of the cam 10, and the clamping block 7 is abutted and fixed with the cylindrical part under the elastic potential energy of the elastic part 9. The drilling assembly performs a feeding rotating motion to drill the feed hole 13. After retracting the tool, the intermittent rotating mechanism drives the divider and the cam 10 to rotate intermittently again, and the raised part of the cam 10 will squeeze the "U"-shaped connecting rod 11 outward, so that the "U"-shaped connecting rod 11 drives the clamping block 7 to separate from the cylindrical parts and squeeze the elastic part 9. The divider drives the cylindrical parts to rotate in the circular dividing cavity 3. When it rotates to the discharge trough 12, the cylindrical parts are discharged from the discharge trough 12 under the action of gravity.

[0030] In order to achieve the purpose of separating the cylindrical parts and intermittently rotating with the divider, preferably, the divider includes a dividing disc 4 rotatably connected to the inside of the circular dividing cavity 3, and a plurality of drop grooves 5 are arranged in a ring array on the edge of the dividing disc 4. When the drop grooves 5 on the intermittently rotating dividing disc 4 are in a high position, a cylindrical part falls into the drop groove 5, and the cylindrical part falling into the drop groove 5 will rotate intermittently with the dividing disc 4, and will be drilled by the drilling assembly at the feed hole 13, and will be discharged from the discharge groove 12 when it rotates to the discharge groove 12.

[0031] In order to achieve the purpose of separating the cylindrical parts and intermittently rotating with the distributor, preferably, the number of raised parts of the cam 10 is the same as the number of the blanking grooves 5, the distributor disc 4 and the cam 10 rotate intermittently synchronously, the single rotation angle is the same, and the cam 10 drives the block 7 to extend and retract once through the "U"-shaped connecting rod 11, thereby fixing the cylindrical parts during drilling. After the drilling is completed, the block 7 is separated from the cylindrical parts.

[0032] In order to achieve the purpose of automatic punching and drilling, preferably, the intermittent rotating mechanism includes a motor 14, a driving wheel 15 is provided at the output end of the motor 14, a driving pin 16 is eccentrically provided on the driving wheel 15, a driven wheel 17 is coaxially provided on the dividing disc 4, and a driving groove 18 matched with the driving pin 16 is provided in an edge ring array of the driven wheel 17, and the number of the driving grooves 18 is the same as the number of the blanking grooves 5, a locking arc 19 is provided on the driving wheel 15, and a locking groove 20 matched with the locking arc 19 is provided in an edge ring array of the driven wheel 17, and the number of the locking grooves 20 is the same as the number of the driving grooves 18 and is arranged at intervals.

[0033] When in use, the motor 14 drives the driving wheel 15 to rotate, and the driving pin 16 on the driving wheel 15 drives the driven wheel 17 to rotate intermittently through the driving groove 18. Each time it rotates, the locking arc 19 is embedded in the locking groove 20 once to prevent the driven wheel 17 from inertial rotation. The intermittent rotation of the driven wheel 17 drives the distributor and the cam 10 to rotate intermittently.

[0034] In order to achieve the purpose of automatic punching and drilling, preferably, an "L"-shaped mounting plate 21 is provided on the front side of the box body 1, and the motor 14 is installed on the "L"-shaped mounting plate 21. A driving gear 22 is provided at the output end of the motor 14, and the driving gear 22 is meshed with an intermediate gear 23 rotatably connected to the "L"-shaped mounting plate 21. The intermediate gear 23 is provided with an annular cam 24 for driving the drilling assembly to perform a feeding motion, and the intermediate gear 23 is meshed with a driven gear 25 for driving the drilling assembly to perform a rotational motion, and the driven gear 25 is rotatably connected to the "L"-shaped mounting plate 21;

[0035] The drilling assembly includes a drill rod 26 and a drill bit 27 fixedly connected at the ends, a mounting groove 29 is provided on the "L"-shaped mounting plate 21, a guide rod 30 is provided inside the mounting groove 29, a slider 31 is slidably connected to the guide rod 30, a spring 32 is sleeved on the guide rod 30, a sleeve 28 fixedly connected to the slider 31 is rotatably connected to the rear of the drill rod 26, and a roller 33 is provided on the sleeve 28 to be in close contact with the cam surface of the annular cam 24 under the elastic potential energy of the spring 32;

[0036] A shaft sleeve 34 is rotatably connected to the “L”-shaped mounting plate 21 . A keyway 35 is provided on the inner wall of the shaft sleeve 34 . The driven gear 25 is arranged on the shaft sleeve 34 . A key protrusion 36 matching the keyway 35 is provided at the front of the drill rod 26 .

[0037] When in use, the motor 14 drives the driving gear 22 to rotate, the driving gear 22 drives the intermediate gear 23 to rotate, the intermediate gear 23 drives the annular cam 24 and the driven gear 25 to rotate, and the driven gear 25 drives the drilling assembly to rotate through the keyway 35 inside the sleeve 34 and the key protrusion 36 on the drill rod 26. At the same time, under the guiding action of the guide rod 30 on the slider 31 and the elastic potential energy of the spring 32, the annular cam 24 drives the sleeve 28 to slide back and forth along the length direction of the drill rod 26 through the roller 33, so that the drill rod 26 drives the drill bit 27 to perform feed rotation motion, and drilling is performed at the end of the cylindrical part.

[0038] In order to achieve the purpose of orderly feeding of cylindrical parts, preferably, the storage trough 2 is in the shape of a flat funnel.

[0039] In order to achieve the purpose of improving the fixing effect, preferably, a “V”-shaped groove 37 is opened on the contact surface of the clamping block 7 .

[0040] Compared with the prior art, the present invention is provided with a box body 1, a drilling assembly, a material storage trough 2, a circular material distribution cavity 3, a material discharge trough 12, a material distributor, a guide groove 6, a clamping block 7, a limiting ring 8, an elastic member 9, a cam 10, a "U"-shaped connecting rod 11, a material discharge trough 12, a feed hole 13 and an intermittent rotating mechanism. The intermittent rotating mechanism drives the material distributor and the cam 10 to rotate intermittently. The cylindrical parts in the material storage trough 2 are separated by the material distributor and rotate intermittently with the material distributor. When the material distributor drives the cylindrical parts to rotate to the feed hole 13, the "U"-shaped connecting rod 11 contacts the concave part of the cam 10, and the clamping block 7 is elastically moved by the elastic potential energy of the elastic member 9. It is fixed with the lower part in contact with the cylindrical part, and the drilling assembly makes a feed rotation motion to drill it through the feed hole 13. After the tool is retracted, the intermittent rotation mechanism drives the distributor and the cam 10 to rotate intermittently again, and the raised part of the cam 10 will squeeze the "U"-shaped connecting rod 11 outward, so that the "U"-shaped connecting rod 11 drives the block 7 to disengage from the cylindrical part and squeeze the elastic part 9. The distributor drives the cylindrical part to rotate in the circular distribution cavity 3. When it rotates to the discharge chute 12, the cylindrical part is discharged from the discharge chute 12 under the action of gravity. During the drilling process, the linkage and coordination performance between the components are good, no manual operation is required, and the degree of automation is high.

[0041] Compared with the prior art, the present invention adopts the matching arrangement of the driving gear 22, the intermediate gear 23, the annular cam 24, the driven gear 25, the drill rod 26, the drill bit 27, the mounting groove 29, the guide rod 30, the slider 31, the spring 32, the sleeve 28, the roller 33, the shaft sleeve 34, the keyway 35 and the key protrusion 36. The motor 14 drives the driving gear 22 to rotate, the driving gear 22 drives the intermediate gear 23 to rotate, the intermediate gear 23 drives the annular cam 24 and the driven gear 25 to rotate, and the driven gear 25 is driven by the shaft sleeve 34. The keyway 35 on the drill rod 26 and the key protrusion 36 on the drill rod 26 drive the drilling assembly to rotate. At the same time, under the guiding action of the guide rod 30 on the slider 31 and the elastic potential energy of the spring 32, the annular cam 24 drives the sleeve 28 to slide back and forth along the length direction of the drill rod 26 through the roller 33, so that the drill rod 26 drives the drill bit 27 to perform feed rotation motion, and drilling is performed at the end of the cylindrical part, thereby realizing the automation of loading, clamping, drilling and discharging of cylindrical parts without manual operation, and the degree of automation is high.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic punching and drilling device, comprising a housing (1) and a drilling assembly, characterized in that: The upper end of the box body (1) is provided with a storage trough (2) for storing cylindrical parts, a circular material distribution cavity (3) is provided below the storage trough (2), a discharge trough (12) is provided below the circular material distribution cavity (3), a distributor is rotatably connected inside the circular material distribution cavity (3), a guide groove (6) is provided on one side of the circular material distribution cavity (3), a clamping block (7) for fixing cylindrical parts is slidably connected inside the guide groove (6), a limiting ring (8) is provided inside the guide groove (6), an elastic member (9) is provided between the clamping block (7) and the limiting ring (8), a cam (10) is coaxially provided on the distributor, a "U"-shaped connecting rod (11) extending out of the guide groove (6) is provided on the clamping block (7), and one end of the "U"-shaped connecting rod (11) is in close contact with the cam (10) under the action of the elastic potential energy of the elastic member (9); A feed hole (13) is provided on the front surface of the box body (1), and an intermittent rotating mechanism for driving the distributor and the cam (10) to rotate intermittently is arranged on the front side of the box body (1).

2. The automatic punching and drilling device according to claim 1, characterized in that: The material distributor comprises a material distribution disc (4) rotatably connected inside a circular material distribution cavity (3), and a plurality of material drop grooves (5) are arranged in an annular array on the edge of the material distribution disc (4).

3. The automatic punching and drilling device according to claim 2, characterized in that: The number of the protrusions of the cam (10) is the same as the number of the material dropping grooves (5).

4. The automatic punching and drilling device according to claim 3, characterized in that: The intermittent rotating mechanism comprises a motor (14), the output end of the motor (14) is provided with a driving wheel (15), a driving pin (16) is eccentrically provided on the driving wheel (15), the material distribution disc (4) is coaxially provided with a driven wheel (17), the edge ring array of the driven wheel (17) is provided with driving grooves (18) adapted to the driving pin (16), and the number of the driving grooves (18) is the same as the number of the blanking grooves (5).

5. The automatic punching and drilling device according to claim 4, characterized in that: The driving wheel (15) is provided with a locking arc (19), and the edge annular array of the driven wheel (17) is provided with locking grooves (20) adapted to the locking arc (19), and the number of the locking grooves (20) is the same as the number of the driving grooves (18) and is arranged at intervals.

6. The automatic punching and drilling device according to claim 5, characterized in that: An "L"-shaped mounting plate (21) is arranged at the front side of the housing (1), the motor (14) is mounted on the "L"-shaped mounting plate (21), a driving gear (22) is arranged at the output end of the motor (14), the driving gear (22) is meshed with an intermediate gear (23) rotatably connected to the "L"-shaped mounting plate (21), the intermediate gear (23) is provided with an annular cam (24) for driving the drilling assembly to perform feeding motion, the intermediate gear (23) is meshed with a driven gear (25) for driving the drilling assembly to perform rotational motion, and the driven gear (25) is rotatably connected to the "L"-shaped mounting plate (21).

7. The automatic punching and drilling device according to claim 6, characterized in that: The drilling assembly comprises a drill rod (26) and a drill bit (27) whose ends are fixedly connected, a mounting groove (29) is provided on the "L"-shaped mounting plate (21), a guide rod (30) is provided inside the mounting groove (29), a slider (31) is slidably connected to the guide rod (30), a spring (32) is sleeved on the guide rod (30), a sleeve (28) fixedly connected to the slider (31) is rotatably connected to the rear of the drill rod (26), and a roller (33) is provided on the sleeve (28) which is in close contact with the cam surface of the annular cam (24) under the action of the elastic potential energy of the spring (32); The "L"-shaped mounting plate (21) is rotatably connected to a shaft sleeve (34), an inner wall of which is provided with a keyway (35), the driven gear (25) is arranged on the shaft sleeve (34), and a key protrusion (36) adapted to the keyway (35) is arranged at the front of the drill rod (26).

8. The automatic punching and drilling device according to claim 7, characterized in that: The material storage tank (2) is in the shape of a flat funnel.

9. The automatic punching and drilling device according to claim 8, characterized in that: A V-shaped card groove (37) is provided on the contact surface of the card block (7).

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