Adjustable drilling machine for machining spare and accessory parts of excavator

Abstract

The invention relates to the related technical field of drilling machines, in particular to an adjustable drilling machine for machining excavator spare and accessory parts, which comprises a base, a rotating shaft, a rotating seat, a drilling machine feeding mechanism, a drilling machine and a self-locking structure, a rotating shaft seat is fixedly mounted on the base, a ball bearing is fixedly mounted in a rotating hole of the rotating shaft seat, and the rotating shaft is rotatably mounted on the rotating shaft seat through the ball bearing; the rotating shaft is driven by a primary servo motor on the rear side of the rotating shaft seat, the rotating seat is fixedly connected with the rotating shaft, and the drilling machine feeding mechanism is arranged on the rotating seat; by arranging the adjustable drilling machine formed by combining the base, the rotating shaft, the rotating seat, the drilling machine feeding mechanism, the drilling machine and the self-locking structure, the rotating seat is driven by the rotating shaft, so that the angles of the drilling machine feeding mechanism and the drilling machine are changed, and the drilling machine can conveniently machine a hole body at multiple angles; therefore, the stability of the rotating shaft in the actual machining process is effectively guaranteed, and the problem that the precision of a workpiece is reduced due to angle deviation of the rotating shaft is solved.

Description

Technical Field

[0001] The invention relates to the technical field related to drilling machines, and in particular to an adjustable drilling machine for processing excavator parts. Background Art

[0002] Drilling machine refers to the general term for machinery and equipment that uses a tool that is harder and sharper than the target object to leave a cylindrical hole or hole on the target object through rotary cutting or rotary extrusion. It is also called drilling machine, punching machine, drilling machine, through-hole machine, etc.

[0003] The existing Chinese patent document with announcement number CN103752892B discloses an angle-adjustable drilling machine, which includes a base frame and a drilling device, a processing platform is provided on the base frame, and a drilling device is provided above the processing platform. The improvement is that: it also includes an angle adjustment device, the angle adjustment device includes an adjustment mechanism and a shaft, the shaft is relatively fixed to the processing platform, and the drilling device is pivotally connected to the shaft; the adjustment mechanism is connected to the drilling device to adjust and limit its inclination angle; the drilling device includes two; correspondingly, the angle adjustment device includes two shafts, the two shafts are spaced at the same height and relatively fixed to the processing platform, and each shaft is respectively sleeved A drilling device is connected; the adjusting mechanism includes an adjusting screw, the lower middle end of the drilling device is sleeved on the shaft of the angle adjusting device, and the upper middle ends of the two drilling devices are screwed on both ends of the adjusting screw; however, the drilling rig in the above scheme is not provided with a self-locking structure, and the self-locking ability of the motor is limited, which causes the drilling rig to be prone to slight angle deviation during drilling processing, and when the drilling rig is positionally offset, the axial force applied to the drill bit will be offset, which causes easy wear and even the breakage of the drill bit in severe cases. For this reason, the present invention proposes an adjustable drilling machine for processing excavator parts to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide an adjustable drilling machine for processing excavator parts to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: an adjustable drilling machine for processing excavator parts, comprising:

[0006] A base, on which a rotating shaft seat is fixedly mounted, and a ball bearing is fixedly mounted in a rotating hole of the rotating shaft seat; a rotating shaft, which is rotatably mounted on the rotating shaft seat through the ball bearing, and is driven by a primary servo motor at the rear side of the rotating shaft seat;

[0007] A rotating seat, wherein the rotating seat is fixedly connected to the rotating shaft;

[0008] A drilling rig feeding mechanism, wherein the drilling rig feeding mechanism is arranged on a rotating seat;

[0009] A drilling machine, wherein the drilling machine performs feeding motion through a drilling machine feeding mechanism, a drill bit is installed on the drilling machine, and the drill bit corresponds to the workpiece placed on the base;

[0010] A self-locking structure is used to lock the rotating shaft.

[0011] Preferably, the drilling rig feeding mechanism includes a transmission screw, a primary movable seat and a secondary servo motor, the secondary servo motor is positioned on the rotating seat through the secondary motor seat, the upper and lower ends of the rotating seat are fixedly connected with secondary mounting seats, a secondary guide rod is fixedly installed between the secondary mounting seats, the primary movable seat is movably installed on the secondary guide rod, the transmission screw is rotatably installed between the secondary mounting seats, the primary movable seat is driven by the transmission screw, and the transmission screw is transmission-connected to the output shaft of the secondary servo motor through a secondary coupling.

[0012] Preferably, the self-locking structure comprises a self-locking wheel and a locking module, the self-locking wheel is fixedly mounted on the rotating shaft, the locking module is fixed on the rotating shaft seat, and the self-locking wheel is locked by the locking module.

[0013] Preferably, the locking module includes a three-stage servo motor, a three-stage transmission screw, a three-stage movable seat, a first self-locking part, a second self-locking part and a third self-locking part, the upper and lower ends of the rotating shaft seat are fixedly installed with three-stage mounting seats, a three-stage guide rod is fixedly installed between the three-stage mounting seats, the three-stage movable seat is movably installed on the three-stage guide rod, the three-stage servo motor is fixed on the rotating shaft seat through a three-stage motor seat, the three-stage transmission screw is rotatably installed between the three-stage mounting seats, the three-stage movable seat is driven by the three-stage transmission screw, and the three-stage transmission screw is transmission-connected to the output shaft of the three-stage servo motor through a three-stage coupling.

[0014] Preferably, the first self-locking part, the second self-locking part and the third self-locking part are all fixedly mounted on a three-stage moving seat, and a primary self-locking groove, a secondary self-locking groove and a tertiary self-locking groove are provided on the side wall of the self-locking wheel.

[0015] Preferably, the first self-locking part, the second self-locking part, and the third self-locking part are all composed of a telescopic tube, a telescopic rod, a connecting spring, a block seat, and a positioning block. The telescopic tube is fixed on the three-stage movable seat, and the telescopic rod is movably arranged in the inner cavity of the telescopic tube. The telescopic rod, the block seat, and the positioning block are integrally formed. The connecting spring is sleeved on the telescopic rod, and the two ends of the connecting spring are respectively fixedly connected to the telescopic tube and the block seat. Preferably, the first-level self-locking groove, the second-level self-locking groove, and the third-level self-locking groove are all U-shaped grooves, and the size of the positioning block matches the size of the self-locking groove. When the three-stage movable seat moves to the lower side and the connecting spring is in a reset state, the positioning block is embedded in the self-locking groove.

[0016] Preferably, the primary self-locking groove, the secondary self-locking groove, and the tertiary self-locking groove are evenly arranged in a circle, and the primary self-locking groove, the secondary self-locking groove, and the tertiary self-locking groove are staggered, and the first self-locking part, the second self-locking part, and the third self-locking part correspond to the primary self-locking groove, the secondary self-locking groove, and the tertiary self-locking groove, respectively.

[0017] Preferably, a positioning groove and a threaded hole are provided on the side wall of the rotating shaft, and a positioning protrusion is integrally formed on the side wall of the inner hole of the self-locking wheel. When the self-locking wheel is actually installed, the positioning protrusion is embedded in the positioning groove, and a positioning bolt is screwed into the threaded hole. The positioning bolt is a hexagon socket bolt, and when the positioning bolt is actually installed, the side edge of the nut of the positioning bolt is set against the side edge of the self-locking wheel.

[0018] Preferably, a docking column is provided at the end of the rotating shaft, and the docking column is a hexagonal column, and a primary pin hole is provided on the docking column. The inner side wall of the rotating seat is integrally formed with a docking seat, and a secondary pin hole is provided on the docking seat, and the secondary pin hole is arranged corresponding to the primary pin hole. The docking seat is matched with the docking column, and the docking column and the docking seat are positioned and connected by a positioning pin.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. By setting an adjustable drilling machine composed of a base, a rotating shaft, a rotating seat, a drilling feed mechanism, a drilling machine and a self-locking structure, the rotating seat is driven by the rotating shaft, so that the angles of the drilling feed mechanism and the drilling machine can be changed, so that the drilling machine can process holes at multiple angles. The self-locking structure is set to effectively ensure the stability of the rotating shaft in the actual processing process, so as to avoid the problem of angle deviation of the rotating shaft causing a decrease in workpiece accuracy;

[0021] 2. The self-locking structure is configured to be composed of a self-locking wheel and a locking module, and the locking module is configured to be composed of a three-stage servo motor, a three-stage transmission screw, a three-stage moving seat, a first self-locking part, a second self-locking part and a third self-locking part. A first-stage self-locking groove, a second-stage self-locking groove and a third-stage self-locking groove are provided on the side wall of the self-locking wheel, and the first-stage self-locking groove, the second-stage self-locking groove and the third-stage self-locking groove are staggered, thereby effectively improving the adjustment accuracy of the rotating shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 for Figure 1 A schematic diagram of the structure enlargement in the middle;

[0024] Figure 3This is a schematic diagram of the installation of the rotating shaft of the present invention;

[0025] Figure 4 for Figure 3 A magnified schematic diagram of the structure at B in the middle;

[0026] Figure 5 for Figure 3 A magnified schematic diagram of the structure at C in the middle;

[0027] Figure 6 It is a schematic diagram of the structure of the rotating seat of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of the self-locking wheel of the present invention;

[0029] Figure 8 for Figure 7 A magnified schematic diagram of the structure at D in the middle;

[0030] Fig. 9 It is a schematic diagram of the distribution of the self-locking parts of the present invention.

[0031] In the figure: base 1, shaft 2, rotating seat 3, drilling machine 4, shaft seat 5, ball bearing 6, secondary mounting seat 7, secondary guide rod 8, transmission screw 9, primary moving seat 10, secondary motor seat 11, secondary servo motor 12, secondary coupling 13, drill bit 14, workpiece 15, self-locking wheel 16, locking module 17, tertiary servo motor 18, tertiary moving seat 19, first self-locking part 20, second self-locking part 21, third self-locking part 22, three-stage motor seat 23, three-stage mounting seat 24, three-stage guide rod 25, three-stage transmission screw 26, three-stage coupling 27, first-stage self-locking groove 28, second-stage self-locking groove 29, third-stage self-locking groove 30, telescopic tube 31, telescopic rod 32, connecting spring 33, block seat 34, positioning block 35, positioning groove 36, threaded hole 37, positioning protrusion 38, positioning bolt 39, docking column 40, first-stage pin shaft hole 41, docking seat 42. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-Figure 9 The present invention provides the following three preferred embodiments:

[0034] Embodiment 1: An adjustable drilling machine for processing excavator parts, comprising a base 1, a rotating shaft 2, a rotating seat 3, a drilling rig feeding mechanism, a drilling rig 4 and a self-locking structure, a rotating shaft seat 5 is fixedly installed on the base 1, a ball bearing 6 is fixedly installed in the rotating hole of the rotating shaft seat 5, the rotating shaft 2 is rotatably installed on the rotating shaft seat 5 through the ball bearing 6, and the rotating shaft 2 is driven by a primary servo motor on the rear side of the rotating shaft seat 5, the rotating seat 3 is fixedly connected to the rotating shaft 2, the drilling rig feeding mechanism is arranged on the rotating seat 3, the drilling rig 4 performs feeding movement through the drilling rig feeding mechanism, and a drill bit 14 is installed on the drilling rig 4, The drill bit 14 corresponds to the workpiece 15 placed on the base 1, and the self-locking structure is used to lock the rotating shaft 2. By setting an adjustable drilling machine composed of the base 1, the rotating shaft 2, the rotating seat 3, the drilling rig feed mechanism, the drilling rig 4 and the self-locking structure, the rotating seat 3 is driven by the rotating shaft 2, so that the angles of the drilling rig feed mechanism and the drilling rig 4 can be changed, so as to facilitate the drilling rig 4 to perform hole body processing at multiple angles, and through the setting of the self-locking structure, the stability of the rotating shaft 2 in the actual processing process is effectively guaranteed to avoid the problem of angle deviation of the rotating shaft 2 causing a decrease in workpiece accuracy.

[0035] The drilling rig feeding mechanism includes a transmission screw 9, a primary moving seat 10 and a secondary servo motor 12. The secondary servo motor 12 is positioned on the rotating seat 3 through the secondary motor seat 11. The upper and lower ends of the rotating seat 3 are fixedly connected with secondary mounting seats 7. A secondary guide rod 8 is fixedly installed between the secondary mounting seats 7. The primary moving seat 10 is movably installed on the secondary guide rod 8. The transmission screw 9 is rotatably installed between the secondary mounting seats 7. The primary moving seat 10 is driven by the transmission screw 9, and the transmission screw 9 is connected to the output shaft of the secondary servo motor 12 through the secondary coupling 13.

[0036] Embodiment 2: On the basis of embodiment 1, the self-locking structure includes a self-locking wheel 16 and a locking module 17, the self-locking wheel 16 is fixedly mounted on the rotating shaft 2, the locking module 17 is fixed on the rotating shaft seat 5, and the self-locking wheel 16 is locked by the locking module 17, the locking module 17 includes a three-stage servo motor 18, a three-stage transmission screw 26, a three-stage moving seat 19, a first self-locking part 20, a second self-locking part 21 and a third self-locking part 22, the upper and lower ends of the rotating shaft seat 5 are fixedly mounted with a three-stage mounting seat 24, a three-stage guide rod 25 is fixedly mounted between the three-stage mounting seats 24, the three-stage moving seat 19 is movably mounted on the three-stage guide rod 25, the three-stage servo motor 18 is fixed on the rotating shaft seat 5 through the three-stage motor seat 23, the three-stage transmission screw 26 is rotatably mounted between the three-stage mounting seats 24, the three-stage moving seat 19 is driven by the three-stage transmission screw 26, and the three-stage transmission screw 26 is transmission-connected to the output shaft of the three-stage servo motor 18 through the three-stage coupling 27.

[0037] The first self-locking part 20, the second self-locking part 21, and the third self-locking part 22 are all fixedly mounted on the three-stage moving seat 19, and the side wall of the self-locking wheel 16 is provided with a first-stage self-locking groove 28, a second-stage self-locking groove 29, and a third-stage self-locking groove 30. The first self-locking part 20, the second self-locking part 21, and the third self-locking part 22 are all composed of a telescopic tube 31, a telescopic rod 32, a connecting spring 33, a block seat 34, and a positioning block 35. The telescopic tube 31 is fixed on the three-stage moving seat 19, and the telescopic rod 32 is movably arranged in the inner cavity of the telescopic tube 31. In the figure, the telescopic rod 32, the block seat 34, and the positioning block 35 are integrally formed, the connecting spring 33 is sleeved on the telescopic rod 32, and the two ends of the connecting spring 33 are respectively fixedly connected to the telescopic tube 31 and the block seat 34, the first-level self-locking groove 28, the second-level self-locking groove 29, and the third-level self-locking groove 30 are all U-shaped grooves, and the size of the positioning block 35 matches the size of the self-locking groove. When the third-level moving seat 19 moves to the lower side and the connecting spring 33 is in the reset state, the positioning block 35 is embedded in the self-locking groove. The primary self-locking groove 28, the secondary self-locking groove 29, and the tertiary self-locking groove 30 are arranged in a circle with equal circumference, and the primary self-locking groove 28, the secondary self-locking groove 29, and the tertiary self-locking groove 30 are staggered, and the first self-locking portion 20, the second self-locking portion 21, and the third self-locking portion 22 correspond to the primary self-locking groove 28, the secondary self-locking groove 29, and the tertiary self-locking groove 30 respectively. By setting the self-locking structure to be composed of a self-locking wheel 16 and a locking module 17, and The locking module 17 is configured to be composed of a three-stage servo motor 18, a three-stage transmission screw 26, a three-stage moving seat 19, a first self-locking part 20, a second self-locking part 21 and a third self-locking part 22, and a first-stage self-locking groove 28, a second-stage self-locking groove 29 and a third-stage self-locking groove 30 are opened on the side wall of the self-locking wheel 16, and the first-stage self-locking groove 28, the second-stage self-locking groove 29 and the third-stage self-locking groove 30 are staggered, thereby effectively improving the adjustment accuracy of the rotating shaft 2.

[0038] Embodiment 3: On the basis of embodiment 2, a positioning groove 36 and a threaded hole 37 are provided on the side wall of the rotating shaft 2, and a positioning protrusion 38 is integrally formed on the side wall of the inner hole of the self-locking wheel 16. When the self-locking wheel 16 is actually installed, the positioning protrusion 38 is embedded in the positioning groove 36, and a positioning bolt 39 is screwed into the threaded hole 37. The positioning bolt 39 is a hexagon socket bolt, and when the positioning bolt 39 is actually installed, the side edge of the nut of the positioning bolt 39 is set against the side edge of the self-locking wheel 16. The setting of the positioning groove 36 and the positioning protrusion 38 can improve the installation stability of the self-locking wheel 16, and can improve the convenience of disassembly and assembly of the self-locking wheel 16.

[0039] A docking column 40 is provided at the end of the rotating shaft 2. The docking column 40 is a hexagonal column and a primary pin hole 41 is provided on the docking column 40. A docking seat 42 is integrally formed on the inner wall of the rotating seat 3, and a secondary pin hole is provided on the docking seat 42. The secondary pin hole is arranged corresponding to the primary pin hole 41. The docking seat 42 is matched with the docking column 40, and the docking column 40 and the docking seat 42 are positioned and connected by a positioning pin. The arrangement of the docking column 40 and the docking seat 42 can facilitate the docking installation of the rotating seat 3.

[0040] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.

Claims

1. An adjustable drilling machine for processing excavator parts, characterized in that: include: A base (1), a rotating shaft seat (5) being fixedly mounted on the base (1), and a ball bearing (6) being fixedly mounted in a rotating hole of the rotating shaft seat (5); A rotating shaft (2), wherein the rotating shaft (2) is rotatably mounted on a rotating shaft seat (5) via a ball bearing (6), and the rotating shaft (2) is driven by a primary servo motor at the rear side of the rotating shaft seat (5); A rotating seat (3), wherein the rotating seat (3) is fixedly connected to the rotating shaft (2); A drilling rig feeding mechanism, wherein the drilling rig feeding mechanism is arranged on a rotating seat (3); A drilling machine (4), wherein the drilling machine (4) performs feeding motion through a drilling machine feeding mechanism, a drill bit (14) is installed on the drilling machine (4), and the drill bit (14) corresponds to a workpiece (15) placed on the base (1); A self-locking structure, wherein the self-locking structure is used to lock the rotating shaft (2).

2. The adjustable drilling machine for processing excavator parts according to claim 1, characterized in that: The drilling rig feeding mechanism comprises a transmission screw (9), a primary moving seat (10) and a secondary servo motor (12); the secondary servo motor (12) is positioned on the rotating seat (3) through a secondary motor seat (11); the upper and lower ends of the rotating seat (3) are fixedly connected with secondary mounting seats (7); a secondary guide rod (8) is fixedly installed between the secondary mounting seats (7); the primary moving seat (10) is movably installed on the secondary guide rod (8); the transmission screw (9) is rotatably installed between the secondary mounting seats (7); the primary moving seat (10) is driven by the transmission screw (9); and the transmission screw (9) is transmission-connected to the output shaft of the secondary servo motor (12) through a secondary coupling (13).

3. The adjustable drilling machine for processing excavator parts according to claim 2, characterized in that: The self-locking structure comprises a self-locking wheel (16) and a locking module (17); the self-locking wheel (16) is fixedly mounted on the rotating shaft (2); the locking module (17) is fixed on the rotating shaft seat (5); and the self-locking wheel (16) is locked by the locking module (17).

4. The adjustable drilling machine for processing excavator parts according to claim 1, characterized in that: The locking module (17) comprises a three-stage servo motor (18), a three-stage transmission lead screw (26), a three-stage movable seat (19), a first self-locking part (20), a second self-locking part (21) and a third self-locking part (22); the upper and lower ends of the rotating shaft seat (5) are fixedly mounted with a three-stage mounting seat (24); a three-stage guide rod (25) is fixedly mounted between the three-stage mounting seats (24); the three-stage movable seat (19) is movably mounted on the three-stage guide rod (25); the three-stage servo motor (18) is fixed on the rotating shaft seat (5) through a three-stage motor seat (23); the three-stage transmission lead screw (26) is rotatably mounted between the three-stage mounting seats (24); the three-stage movable seat (19) is driven by the three-stage transmission lead screw (26); and the three-stage transmission lead screw (26) is transmission-connected to the output shaft of the three-stage servo motor (18) through a three-stage coupling (27).

5. The adjustable drilling machine for processing excavator parts according to claim 4, characterized in that: The first self-locking part (20), the second self-locking part (21) and the third self-locking part (22) are all fixedly mounted on the three-stage moving seat (19), and the side wall of the self-locking wheel (16) is provided with a first-stage self-locking groove (28), a second-stage self-locking groove (29) and a third-stage self-locking groove (30).

6. The adjustable drilling machine for processing excavator parts according to claim 5, characterized in that: The first self-locking part (20), the second self-locking part (21) and the third self-locking part (22) are all composed of a telescopic tube (31), a telescopic rod (32), a connecting spring (33), a block seat (34) and a positioning block (35); the telescopic tube (31) is fixed on the three-stage movable seat (19); the telescopic rod (32) is movably arranged in the inner cavity of the telescopic tube (31); the telescopic rod (32), the block seat (34) and the positioning block (35) are integrally formed; the connecting spring (33) is sleeved on the telescopic rod (32); and two ends of the connecting spring (33) are respectively fixedly connected to the telescopic tube (31) and the block seat (34).

7. The adjustable drilling machine for processing excavator parts according to claim 6, characterized in that: The first-level self-locking groove (28), the second-level self-locking groove (29), and the third-level self-locking groove (30) are all U-shaped grooves. The size of the positioning block (35) matches the size of the self-locking groove. When the third-level moving seat (19) moves to the lower side and the connecting spring (33) is in a reset state, the positioning block (35) is embedded in the self-locking groove.

8. The adjustable drilling machine for processing excavator parts according to claim 7, characterized in that: The primary self-locking groove (28), the secondary self-locking groove (29), and the tertiary self-locking groove (30) are arranged in a circle with equal circumference, and the primary self-locking groove (28), the secondary self-locking groove (29), and the tertiary self-locking groove (30) are arranged in a staggered manner, and the first self-locking portion (20), the second self-locking portion (21), and the third self-locking portion (22) correspond to the primary self-locking groove (28), the secondary self-locking groove (29), and the tertiary self-locking groove (30), respectively.

9. The adjustable drilling machine for processing excavator parts according to claim 8, characterized in that: A positioning groove (36) and a threaded hole (37) are provided on the side wall of the rotating shaft (2); a positioning protrusion (38) is integrally formed on the side wall of the inner hole of the self-locking wheel (16); when the self-locking wheel (16) is actually installed, the positioning protrusion (38) is embedded in the positioning groove (36); a positioning bolt (39) is screwed into the threaded hole (37); the positioning bolt (39) is a hexagon socket bolt, and when the positioning bolt (39) is actually installed, the side edge of the nut of the positioning bolt (39) is arranged to abut against the side edge of the self-locking wheel (16).

10. The adjustable drilling machine for processing excavator parts according to claim 9, characterized in that: A docking column (40) is provided at the end of the rotating shaft (2), the docking column (40) is a hexagonal column, and a primary pin hole (41) is provided on the docking column (40); a docking seat (42) is integrally formed on the inner side wall of the rotating seat (3), and a secondary pin hole is provided on the docking seat (42), the secondary pin hole is arranged corresponding to the primary pin hole (41), the docking seat (42) is matched with the docking column (40), and the docking column (40) and the docking seat (42) are positioned and connected by a positioning pin.

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