Rocker arm type large-stroke small hole machine

Abstract

The utility model belongs to the technical field of perforating machines, and particularly relates to a rocker arm type large-stroke small hole machine which comprises a workbench, a stand column is fixedly connected to the top of the workbench, a rocker arm and a top plate are sequentially and rotationally connected to the outer side of the stand column from bottom to top, and a spindle box is slidably connected to the outer side of the rocker arm. A guide mechanism is arranged between the spindle box and the rocker arm, a spindle is arranged at the bottom of the spindle box, and a two-time lifting mechanism is arranged between the spindle and the spindle box. The machine head is reasonable in structural design, secondary lifting is added to the machine head, effective machining adjustment can be carried out according to the height of a workpiece, the distance between a main shaft and the workpiece is appropriate, if the distance is long, the main shaft can move by a large stroke during machining, and then the efficiency and precision of small hole drilling are improved; therefore, coordinates are not easy to shake, positioning is more accurate, and workpieces are convenient to install due to the additional arrangement of the workbench.

Description

Technical Field

[0001] This utility model relates to the field of perforation machine technology, and in particular to a rocker arm type large stroke small hole perforation machine. Background Technology

[0002] A radial drilling machine is a hole-making device used for various processing operations such as drilling, reaming, boring, tapping, and end-face finishing. A search revealed a radial drilling machine with authorization announcement number CN212885134U, comprising a worktable with a column fixed to it. A rotatable radial arm is mounted on the column, sliding up and down along the column under the action of a lead screw drive device. The lead screw drive device includes a connecting plate, a first lead screw, and a handwheel. The connecting plate is rotatably connected to the upper end of the column. The lead screw is vertically positioned and rotatably connected to the connecting plate. The upper end of the first lead screw passes through the connecting plate and is fixed to the handwheel. The radial arm is threadedly connected to the first lead screw, and the radial arm is locked to the column by a first locking handle mounted on it.

[0003] However, the aforementioned rocker arm type drilling machine still has shortcomings. The machine head does not have a secondary lifting mechanism, making it inconvenient to effectively adjust the processing according to the height of the workpiece, resulting in more troublesome and inconvenient processing. If the processing spindle is far from the workpiece, the spindle will move a large stroke during processing, reducing processing efficiency. Therefore, we propose a rocker arm type large stroke small hole drilling machine to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned shortcomings and propose a rocker arm type large stroke small hole machine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A rocker arm type large stroke small hole drilling machine includes a worktable, a column fixedly connected to the top of the worktable, a rocker arm and a top plate rotatably connected from bottom to top on the outer side of the column, a spindle box slidably connected to the outer side of the rocker arm, a guide mechanism provided between the spindle box and the rocker arm, a spindle provided at the bottom of the spindle box, a double lifting mechanism provided between the spindle and the spindle box, a motor fixedly connected to the top of the top plate, a lifting screw fixedly connected to the output shaft of the motor, and the rocker arm threadedly sleeved on the outer side of the lifting screw.

[0007] In a preferred embodiment of this utility model, the guiding mechanism includes an upper hard rail and a lower hard rail fixedly connected to the front side of the rocker arm, and an upper sliding groove and a lower sliding groove are provided on the rear inner wall of the spindle box. The lower sliding groove is slidably connected in the lower hard rail, and the upper sliding groove is slidably connected in the upper hard rail.

[0008] As a preferred embodiment of this utility model, the dual lifting mechanism includes a mounting frame slidably disposed within the spindle box, an upper lifting assembly, and a lower lifting assembly. The upper lifting assembly includes a second motor fixedly connected to the top of the spindle box, and a threaded rod is fixedly connected to the output shaft of the second motor. The mounting frame is threadedly sleeved on the outside of the threaded rod.

[0009] As a preferred embodiment of this utility model, nuts are fixedly connected to both the top and bottom of the mounting frame, and both nuts are threaded onto the outside of the threaded rod.

[0010] As a preferred embodiment of this utility model, a bearing is fixedly connected to the bottom inner wall of the spindle box, and the threaded rod is fixedly sleeved inside the inner ring of the bearing.

[0011] In a preferred embodiment of this utility model, the lowering and lifting assembly includes a motor three fixedly connected to the inner wall of the bottom of the mounting frame and a support plate fixedly connected to the bottom of the mounting frame. A threaded rod two is fixedly connected to the output shaft of the motor three. A movable seat is threadedly fitted on the outer side of the threaded rod two. A vertical plate is fixedly connected to one side of the movable seat. A motor seat is fixedly connected to one side of the vertical plate. A main shaft motor is fixedly connected to the top of the motor seat. The output shaft of the main shaft motor is fixedly connected to the top end of the main shaft.

[0012] As a preferred embodiment of this utility model, a connecting plate is fixedly connected to one side of the support plate, a bearing two is fixedly connected to the top of the connecting plate, and the threaded rod two is fixedly sleeved inside the inner ring of the bearing two.

[0013] As a preferred embodiment of this utility model, guide grooves are provided on both the front and rear sides of the support plate, and two ear plates are fixedly connected to the other side of the movable seat. Guide blocks are fixedly connected to the sides of the two ear plates that are close to each other, and the two guide blocks are slidably sleeved in the guide grooves respectively.

[0014] In this utility model, a rocker arm type large stroke small hole drilling machine is described. The worktable facilitates workpiece installation. Because the top plate and rocker arm are connected by a lifting screw, they can rotate synchronously to adjust the angle of the rocker arm. The upper and lower sliding grooves and upper and lower rigid rails in the guide mechanism facilitate lateral adjustment of the spindle box. The use of rigid rails reduces coordinate jitter and improves positioning accuracy. Motor one drives the rotation of the lifting screw, allowing initial height adjustment of the rocker arm and spindle box under the guidance of the column. Motor two drives the rotation of the threaded rod one, which in turn moves the two nuts and the mounting frame up or down, enabling fine adjustment of the spindle height. This allows for effective processing adjustments based on the workpiece height, ensuring a suitable distance between the spindle and workpiece. If the distance is too far, the spindle will travel a large stroke during processing, reducing processing efficiency.

[0015] In this utility model, the rocker arm type large stroke small hole machine, after being adjusted, starts the motor three, which drives the rotation of the threaded rod two. Under the guidance and limitation of the guide groove and guide block, the threaded rod two drives the moving seat, vertical plate and motor seat to move downward. The motor seat drives the main spindle motor and main spindle to move downward. The main spindle motor drives the rotation of the main spindle, thereby driving the main spindle to rotate and move downward, thus enabling the workpiece to be perforated with small holes.

[0016] This utility model has a reasonable structural design. The machine head has been upgraded with a secondary lifting mechanism, which can be effectively adjusted according to the height of the workpiece to ensure that the distance between the spindle and the workpiece is appropriate. If the distance is too far, the spindle will move a larger stroke during processing, thereby improving the efficiency and accuracy of drilling small holes. The left and right sliding of the spindle box uses a rigid rail, which makes the coordinates less prone to vibration and the positioning more accurate. The addition of a worktable facilitates workpiece installation. Attached Figure Description

[0017] Figure 1 An exploded view of a rocker arm type large stroke small hole machine proposed in this utility model;

[0018] Figure 2 This is a first-view perspective perspective view of the two-lifting mechanism of a rocker arm type large stroke small hole machine proposed in this utility model.

[0019] Figure 3 This is a second-view perspective perspective view of the two-lifting mechanism of a rocker arm type large stroke small hole machine proposed in this utility model.

[0020] Figure 4 for Figure 2 A schematic diagram of the structure of part A.

[0021] In the diagram: 1. Workbench; 2. Column; 3. Rocker arm; 31. Lower hard rail; 32. Upper hard rail; 4. Top plate; 5. Motor 1; 6. Lifting screw; 7. Spindle box; 71. Upper slide groove; 72. Lower slide groove; 8. Spindle; 81. Spindle motor; 9. Double lifting mechanism; 901. Motor 2; 902. Mounting frame; 903. Nut; 904. Bearing 1; 905. Threaded rod 1; 906. Motor 3; 907. Support plate; 908. Connecting plate; 909. Bearing 2; 910. Guide block; 911. Ear plate; 912. Moving seat; 913. Guide groove; 914. Threaded rod 2; 915. Motor base; 916. Vertical plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-4 A rocker arm type large stroke small hole drilling machine includes a worktable 1, a column 2 fixedly connected to the top of the worktable 1, a rocker arm 3 and a top plate 4 rotatably connected from bottom to top on the outer side of the column 2, a spindle box 7 slidably connected to the outer side of the rocker arm 3, a guide mechanism is provided between the spindle box 7 and the rocker arm 3, a spindle 8 is provided at the bottom of the spindle box 7, a double lifting mechanism 9 is provided between the spindle 8 and the spindle box 7, a motor 5 is fixedly connected to the top of the top plate 4, a lifting screw 6 is fixedly connected to the output shaft of the motor 5, and the rocker arm 3 is threaded on the outer side of the lifting screw 6.

[0024] Furthermore, refer to Figure 1 As shown, the guiding mechanism includes an upper hard rail 32 and a lower hard rail 31 fixedly connected to the front side of the rocker arm 3. An upper sliding groove 71 and a lower sliding groove 72 are provided on the rear inner wall of the spindle box 7. The lower sliding groove 72 is slidably connected in the lower hard rail 31, and the upper sliding groove 71 is slidably connected in the upper hard rail 32.

[0025] The above solution is adopted: the upper and lower sliding grooves in the guide mechanism and the upper and lower hard rails make the spindle box 7 easy to adjust laterally, and the use of hard rails makes the coordinates less prone to shaking and the positioning more accurate.

[0026] Furthermore, refer to Figure 2-4 As shown, the two-stage lifting mechanism 9 includes a mounting frame 902 slidably disposed within the spindle box 7, an upper lifting assembly, and a lower lifting assembly. The upper lifting assembly includes a second motor 901 fixedly connected to the top of the spindle box 7. A threaded rod 905 is fixedly connected to the output shaft of the second motor 901. The mounting frame 902 is threaded onto the outside of the threaded rod 905. Nuts 903 are fixedly connected to both the top and bottom of the mounting frame 902, and both nuts 903 are threaded onto the outside of the threaded rod 905.

[0027] The above scheme is adopted as follows: Motor 5 drives the rotation of the lifting screw 6, which, under the guidance of the column 2, allows the rocker arm 3 and the spindle box 7 to be initially adjusted in height. Motor 2 901 drives the rotation of the threaded rod 905, which in turn drives the two nuts 903 and the mounting frame 902 to move up or down, thereby achieving fine adjustment of the height of the spindle 8. This allows for effective processing adjustments based on the height of the workpiece, ensuring that the distance between the spindle 8 and the workpiece is appropriate. If the distance is too far, the spindle 8 will move a larger stroke during processing, thus improving processing efficiency and accuracy.

[0028] Furthermore, a bearing 904 is fixedly connected to the bottom inner wall of the spindle box 7, and a threaded rod 905 is fixedly sleeved in the inner ring of the bearing 904, which can support the threaded rod 905 and make its rotation more stable.

[0029] Furthermore, refer to Figure 2-4As shown, the lower lifting assembly includes a motor 906 fixedly connected to the inner wall of the bottom of the mounting frame 902 and a support plate 907 fixedly connected to the bottom of the mounting frame 902. A threaded rod 914 is fixedly connected to the output shaft of the motor 906. A movable seat 912 is threadedly fitted on the outer side of the threaded rod 914. A vertical plate 916 is fixedly connected to one side of the movable seat 912. A motor seat 915 is fixedly connected to one side of the vertical plate 916. A main shaft motor 81 is fixedly connected to the top of the motor seat 915. The output shaft of the main shaft motor 81 is fixedly connected to the top of the main shaft 8. Guide grooves 913 are provided on both the front and rear sides of the support plate 907. Two ear plates 911 are fixedly connected to the other side of the movable seat 912. Guide blocks 910 are fixedly connected to the sides of the two ear plates 911 that are close to each other. The two guide blocks 910 are slidably fitted in the guide grooves 913 respectively.

[0030] Using the above scheme: Start motor three 906, motor three 906 drives the rotation of threaded rod two 914. Under the guidance and limitation of guide groove 913 and guide block 910, threaded rod two 914 drives the moving seat 912, vertical plate 916 and motor seat 915 to move downward. Motor seat 915 drives the main spindle motor 81 and main spindle 8 to move downward. Main spindle motor 81 drives the rotation of main spindle 8, thereby driving main spindle 8 to rotate and move downward, thus enabling small holes to be drilled in the workpiece.

[0031] Furthermore, a connecting plate 908 is fixedly connected to one side of the support plate 907, and a bearing 909 is fixedly connected to the top of the connecting plate 908. The threaded rod 914 is fixedly sleeved in the inner ring of the bearing 909, which helps to support the threaded rod 914 and make its rotation more stable.

[0032] In this invention, during use, the workbench 1 facilitates workpiece installation. Since the top plate 4 and rocker arm 3 are connected by a lifting screw 6, they can rotate synchronously to adjust the angle of the rocker arm 3. The upper and lower sliding grooves and upper and lower rigid rails in the guide mechanism facilitate lateral adjustment of the spindle box 7. The use of rigid rails reduces coordinate jitter and improves positioning accuracy. Motor 5 drives the rotation of the lifting screw 6, allowing initial height adjustment of the rocker arm 3 and spindle box 7 under the guidance of the column 2. Motor 901 drives the rotation of the threaded rod 905, which in turn moves the two nuts 903 and the mounting frame 902 upwards or downwards, achieving precise adjustment. Adjusting the height of the spindle 8 allows for effective machining adjustments based on the workpiece height, ensuring a suitable distance between the spindle 8 and the workpiece. If the distance is too great, the spindle 8 will travel a large distance during machining, reducing machining efficiency. Once adjusted, start motor 3 (906). Motor 3 (906) drives the rotation of threaded rod 2 (914). Under the guidance and limiting of guide groove 913 and guide block 910, threaded rod 2 (914) drives the downward movement of moving seat 912, vertical plate 916, and motor seat 915. Motor seat 915 then drives the downward movement of spindle motor 81 and spindle 8. Spindle motor 81 drives the rotation of spindle 8, which in turn drives the spindle 8 to rotate and move downward simultaneously, allowing for the drilling of small holes in the workpiece.

Claims

1. A rocker arm type large stroke small hole drilling machine, characterized in that, The system includes a workbench (1), a column (2) fixedly connected to the top of the workbench (1), a rocker arm (3) and a top plate (4) rotatably connected from bottom to top on the outer side of the column (2), a spindle box (7) slidably connected to the outer side of the rocker arm (3), a guide mechanism is provided between the spindle box (7) and the rocker arm (3), a spindle (8) is provided at the bottom of the spindle box (7), a double lifting mechanism (9) is provided between the spindle (8) and the spindle box (7), a motor (5) is fixedly connected to the top of the top plate (4), a lifting screw (6) is fixedly connected to the output shaft of the motor (5), and the rocker arm (3) is threaded onto the outer side of the lifting screw (6).

2. The rocker arm type large stroke small hole machine according to claim 1, characterized in that, The guiding mechanism includes an upper hard rail (32) and a lower hard rail (31) fixedly connected to the front side of the rocker arm (3). An upper sliding groove (71) and a lower sliding groove (72) are provided on the rear inner wall of the spindle box (7). The lower sliding groove (72) is slidably connected in the lower hard rail (31), and the upper sliding groove (71) is slidably connected in the upper hard rail (32).

3. The rocker arm type large stroke small hole machine according to claim 1, characterized in that, The two lifting mechanisms (9) include a mounting frame (902) slidably disposed in the spindle box (7), an upper lifting assembly and a lower lifting assembly. The upper lifting assembly includes a second motor (901) fixedly connected to the top of the spindle box (7). A threaded rod (905) is fixedly connected to the output shaft of the second motor (901). The mounting frame (902) is threaded onto the outside of the threaded rod (905).

4. The rocker arm type large stroke small hole machine according to claim 3, characterized in that, Nuts (903) are fixedly connected to the top and bottom of the mounting frame (902), and both nuts (903) are threaded onto the outside of the threaded rod (905).

5. A rocker arm type large stroke small hole drilling machine according to claim 3, characterized in that, A bearing (904) is fixedly connected to the bottom inner wall of the spindle box (7), and the threaded rod (905) is fixedly sleeved inside the inner ring of the bearing (904).

6. A rocker arm type large stroke small hole drilling machine according to claim 3, characterized in that, The lowering and lifting assembly includes a motor three (906) fixedly connected to the inner wall of the bottom of the mounting frame (902) and a support plate (907) fixedly connected to the bottom of the mounting frame (902). A threaded rod two (914) is fixedly connected to the output shaft of the motor three (906). A movable seat (912) is threaded on the outer side of the threaded rod two (914). A vertical plate (916) is fixedly connected to one side of the movable seat (912). A motor seat (915) is fixedly connected to one side of the vertical plate (916). A main shaft motor (81) is fixedly connected to the top of the motor seat (915). The output shaft of the main shaft motor (81) is fixedly connected to the top of the main shaft (8).

7. A rocker arm type large stroke small hole drilling machine according to claim 6, characterized in that, A connecting plate (908) is fixedly connected to one side of the support plate (907), and a bearing (909) is fixedly connected to the top of the connecting plate (908). The threaded rod (914) is fixedly sleeved inside the inner ring of the bearing (909).

8. A rocker arm type large stroke small hole drilling machine according to claim 6, characterized in that, The support plate (907) has guide grooves (913) on both the front and rear sides. Two ear plates (911) are fixedly connected to the other side of the movable seat (912). Guide blocks (910) are fixedly connected to the side of the two ear plates (911) that are close to each other. The two guide blocks (910) are slidably sleeved in the guide grooves (913).

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