Forklift rear axle rocker machining process and drilling equipment used for forklift rear axle rocker machining process

Abstract

The invention relates to a forklift rear axle rocker machining technology which comprises the following steps that S1, parts are cast, a rear fork and a plate body are cast through a mold, a core-pulling mold is selected as the mold for casting the rear fork and the plate body, and holes in the rear fork and the plate body are pre-cast through the core-pulling mold; s2, surface polishing is conducted, specifically, surface polishing is conducted on the rear fork and the plate body which are formed through pouring and the connecting pipe which is cut to the proper length; s3, welding is conducted, specifically, the plate body and the rear fork are welded and fixed to the connecting pipe through a welding gun to form a rear axle rocker blank; s4, chambering is conducted, specifically, the rear axle rocker blank is installed in drilling equipment to conduct chambering and drilling on the pre-cast hole; s5, hole interior polishing is conducted, specifically, the inner wall of the hole subjected to hole reaming is polished, and burrs generated during hole reaming are removed; s6, paint spraying is conducted, specifically, paint spraying is conducted on the rear axle rocker except for holes; and S7, transferring and stacking are conducted, specifically, the rear axle rockers with the surfaces sprayed with paint are transferred to a storage area to be stacked and stored. The drilling device has the effect of reducing the probability of drill bit damage during drilling.

Description

Technical Field

[0001] The present application relates to the field of forklift parts processing, and in particular to a forklift rear axle rocker processing technology and a drilling device used for the process. Background Art

[0002] The rear axle refers to the rear drive shaft component of the vehicle's power transmission. It consists of two half-bridges and can implement half-bridge differential movement. At the same time, it is also a device used to support the wheels and connect the rear wheels.

[0003] The rear axle rocker is an important component on the rear axle, which is welded together by a cut connecting tube and a cast plate body and a rear fork. After the rear axle rocker is welded together, holes are drilled on the plate body and the rear fork using drilling equipment.

[0004] The rear fork and the plate body are both made of hard metal, and direct drilling can easily cause the drill bit to slip and become damaged. Summary of the invention

[0005] In order to reduce the probability of damaging the drill bit during drilling, the present application provides a forklift rear axle rocker arm processing process.

[0006] The present application provides a forklift rear axle rocker processing technology that adopts the following technical solution: A forklift rear axle rocker processing technology comprises the following steps: S1: Casting parts, the rear fork and the plate body are cast through a mold, the mold for casting the rear fork and the plate body is a core-pulling mold, the holes on the rear fork and the plate body are pre-cast through the core-pulling mold, and the pre-casting hole diameter is smaller than the actual required hole diameter; S2: Surface grinding, grinding the surface of the cast rear fork and plate body, as well as the connecting pipe cut to a suitable length; S3: welding, using a welding gun to weld and fix the plate body and the rear fork to the connecting pipe to form a rear axle rocker blank; S4: expanding the hole, installing the rear axle rocker arm blank in the drilling equipment to expand and drill the pre-cast hole; S5: Grinding inside the hole, grinding the inner wall of the hole after expansion to remove the burrs generated during expansion; S6: Spray paint the rear axle rocker except the hole; S7: Transfer and stacking: transfer the rear axle rocker arms after surface painting to the storage area for stacking.

[0007] By adopting the above technical solution, preset holes are pre-cast at the positions where holes need to be drilled when casting the rear fork and the plate body, which can facilitate positioning during subsequent drilling and reduce the probability of the drill bit slipping and being damaged during drilling. At the same time, the preset holes can save materials. Since the casting surface is relatively rough, it needs to be polished and finished after casting. The preset hole diameter is smaller than the required hole diameter, which can provide a margin for subsequent polishing and finishing.

[0008] Optionally, both ends of the hole are chamfered after flaring.

[0009] By adopting the above technical solution, the chamfer can make the hole smoother, avoiding damage caused by the end face being too sharp and colliding with other parts, and can also guide the insertion of parts.

[0010] A drilling device for a rear axle rocker of a forklift comprises a body, a work surface is arranged in the body, a mounting plate is arranged on the work surface, a clamping mechanism for clamping a rear axle waist bar is mounted on the mounting plate, a drilling mechanism is arranged above the mounting plate, the drilling mechanism comprises a drill bit, and the drill bit slides towards or away from the clamping mechanism.

[0011] By adopting the above technical solution, the rear axle rocker is clamped and then drilled to reduce the probability of the rear axle rocker slipping during drilling, thereby improving the drilling accuracy.

[0012] Optionally, mounting platforms are provided at both ends of the work table in the length direction, and rotating boxes are provided on the mounting platforms at both ends. The rotating boxes are provided with rotating disks for rotation. The rotating disks at both ends rotate coaxially. The two ends of the mounting plate in the length direction are respectively installed on two rotating disks. A power part is installed on one of the two rotating boxes, and the power part drives the rotating disk to rotate.

[0013] By adopting the above technical solution, the rotating disk drive mounting plate can drill a hole at the other end by rotating after drilling is completed at one end of the rear axle rocker arm, without the need for re-clamping, thereby improving drilling efficiency.

[0014] Optionally, the rotating disk is rotatably set on the rotating box through a rotating shaft, and a positioning mechanism is set between the rotating shaft and the mounting platform. The positioning mechanism includes a positioning ring, a positioning groove and a positioning piece. The positioning ring is sleeved on the rotating shaft, and there are several positioning grooves that are evenly arranged on the positioning ring. The positioning piece is slidably set on the mounting platform, and an elastic piece is set between the positioning piece and the mounting platform. The elastic piece drives the positioning piece to abut against the positioning ring. When the positioning groove rotates to the positioning piece area, the elastic piece drives the positioning piece to slide and insert into the positioning groove.

[0015] By adopting the above technical solution, the positioning mechanism can position the rotating disk during drilling, thereby reducing the probability that the rotating disk will move during drilling and affect the drilling.

[0016] Optionally, the positioning member includes a positioning platform and a positioning wheel, the positioning platform is slidably disposed on the mounting platform, the positioning wheel is rotatably disposed on the positioning platform, and the positioning wheel abuts against the positioning ring.

[0017] By adopting the above technical solution and using the positioning wheel for positioning, the positioning wheel can cooperate with the positioning ring to guide the rotation of the rotating disk under normal conditions, so that the rotation of the rotating disk is more stable.

[0018] Optionally, the drilling mechanism also includes a transverse electric cylinder, a vertical electric cylinder and a longitudinal electric cylinder, the transverse electric cylinder is horizontally installed in the machine body, the vertical electric cylinder is vertically installed on the transverse electric cylinder, the longitudinal electric cylinder is horizontally installed on the vertical electric cylinder, and the drill bit is installed on the longitudinal electric cylinder. The transverse electric cylinder drives the vertical electric cylinder to slide along the length direction of the machine body, the vertical electric cylinder drives the longitudinal electric cylinder to slide along the height direction of the machine body, and the longitudinal electric cylinder drives the drill bit to slide along the width direction of the machine body.

[0019] By adopting the above technical solution, the drill bit can be adjusted on three axes through the horizontal electric cylinder, the vertical electric cylinder and the longitudinal electric cylinder, so that the drilling position and the drilling depth can be adjusted conveniently.

[0020] Optionally, the clamping mechanism includes a support platform, a clamping platform, a clamping bolt and a pressure plate. The support platform is fixed at the middle position in the width direction of the mounting plate, and a slope is provided on the top of the support platform. There are two clamping platforms, which are respectively arranged at both ends of the width direction of the mounting plate. The clamping platform is arranged on one side of the inclined surface of the support platform, and a clamping opening is provided on the clamping platform facing the inclined surface. The clamping bolt is threadedly connected to the clamping platform, and one end of the clamping bolt extends into the clamping opening. The pressure plate is slidably provided on the mounting plate, and the pressure plate slides toward or away from the support platform.

[0021] By adopting the above technical scheme, the connecting pipe can be clamped and fixed by the support platform and the pressure plate, and the rear forks at both ends of the connecting pipe can be fixed by the clamping platform and the clamping bolts, thereby realizing multi-point fixation of the rear axle rocker, being more suitable for the rear axle rocker, making the fixation of the rear axle rocker more stable, and reducing the probability of slippage of the rear axle rocker during drilling.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: When casting the rear fork and the plate body, a preset hole is cast in advance at the position where the hole needs to be drilled, which can facilitate the positioning of the subsequent drilling and reduce the probability of the drill bit slipping and being damaged during drilling. At the same time, the preset hole can save materials. Since the casting surface is relatively rough, it needs to be polished and fine-finished after casting. The preset hole diameter is smaller than the required hole diameter to provide a margin for subsequent polishing and fine-finishing; By clamping the rear axle rocker before drilling, the probability of the rear axle rocker slipping during drilling is reduced, thereby improving the drilling accuracy; After drilling a hole at one end of the rear axle rocker, the rotating disk drive mounting plate can be rotated to drill the other end without re-clamping, thus improving drilling efficiency. The positioning mechanism can position the rotating disk during drilling, reducing the probability of the rotating disk moving during drilling and affecting the drilling; The drill bit can be adjusted on three axes through the horizontal electric cylinder, vertical electric cylinder and longitudinal electric cylinder, so as to facilitate the adjustment of the drilling position and drilling depth; The connecting pipe can be clamped and fixed by the support platform and the pressure plate, and the rear forks at both ends of the connecting pipe can be fixed by the clamping platform and the clamping bolts, thereby realizing multi-point fixation of the rear axle rocker, being more suitable for the rear axle rocker, making the fixation of the rear axle rocker more stable, and reducing the probability of slippage of the rear axle rocker during drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of this embodiment.

[0024] Figure 2 Schematic diagram of the overall structure of the work surface of this embodiment.

[0025] Figure 3 yes Figure 2 Magnified view of part A in the middle.

[0026] Figure 4 It is a schematic diagram of the overall structure of this embodiment from another perspective.

[0027] Figure 5 yes Figure 2 Magnified view of part B in the middle.

[0028] Description of the accompanying drawings: 1, machine body; 2, work surface; 3, mounting plate; 4, clamping mechanism; 41, support platform; 42, clamping platform; 43, clamping bolt; 44, pressure plate; 5, drilling mechanism; 51, drill bit; 52, horizontal electric cylinder; 53, vertical electric cylinder; 54, longitudinal electric cylinder; 6, mounting platform; 7, rotating box; 8, rotating disk; 9, power part; 10, rotating shaft; 11, positioning mechanism; 111, positioning Ring; 112, positioning groove; 113, positioning piece; 1131, positioning platform; 1132, positioning wheel; 12, elastic piece; 13, guide plate; 14, inclined surface; 15, clamping mouth; 16, top plate; 17, top plate bolt; 18, guide rod; 19, thread; 20, positioning nut; 21, connecting block; 22, positioning plate; 23, positioning bolt; 24, adjusting bolt; 25, adjusting nut; 26, pressing piece. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-5 This application is described in further detail.

[0030] The embodiment of the present application discloses a forklift rear axle rocker processing process, which includes the following steps: S1: casting parts, casting a rear fork and a plate body through a mold, the mold for casting the rear fork and the plate body uses a core-pulling mold, and pre-casting holes on the rear fork and the plate body through the core-pulling mold, and the pre-casting hole diameter is smaller than the actual required hole diameter; S2: surface grinding, surface grinding of the cast rear fork and the plate body, and the connecting pipe cut to a suitable length; S3: welding, welding the plate body and the rear fork to the connecting pipe through a welding gun to form a rear axle rocker blank, and the weld is adjusted and inspected according to the general technical adjustment of Q / HCCD011-2000 welded parts. There shall be no defects such as pores, slag inclusions, cracks, etc. on the weld surface, and uniform corrugation shall be ensured. The weld strength shall not be less than 500MPa. After welding is completed, the weld slag and burrs shall be removed ; S4: Hole expansion, install the rear axle rocker blank in the drilling equipment to expand and drill the pre-cast hole, and chamfer the two ends of the hole after the expansion is completed; S5: Grinding inside the hole, grind the inner wall of the hole after expansion to remove the burrs generated during the expansion; S6: Painting, paint the rear axle rocker except the hole, and use black anti-rust paint; S7: Transfer and stacking, transfer the rear axle rocker with surface spraying to the storage area for stacking; When casting the rear fork and the plate body, pre-cast preset holes at the positions where holes need to be drilled, which can facilitate positioning during subsequent drilling and reduce the probability of damage caused by the drill bit slipping during drilling. At the same time, the preset holes can save materials. Since the casting surface is relatively rough, grinding and finishing are required after casting. The preset hole diameter is smaller than the required hole diameter to provide a margin for subsequent grinding and finishing.

[0031] A drilling device for the rear axle rocker of a forklift, referring to Figure 1 and Figure 2 , including a body 1 that is an overall rectangular parallelepiped, a rectangular work surface 2 is arranged in the body 1, a mounting plate 3 is arranged on the work surface 2, a clamping mechanism 4 for clamping the rear axle waist bar is installed on the mounting plate 3, a drilling mechanism 5 is arranged above the mounting plate 3, the drilling mechanism 5 includes a drill bit 51, the drill bit 51 slides toward or away from the clamping mechanism 4, and drills the rear axle rocker after clamping the rear axle rocker to reduce the probability of the rear axle rocker slipping during drilling, thereby improving the drilling accuracy.

[0032] Reference Figure 1 and Figure 2, both ends of the worktable 2 in the length direction are slidably installed with mounting platforms 6, and the mounting platform 6 slides along the length direction of the worktable 2. A long groove with a cross-section of shaped is opened on the worktable 2, and an adjusting bolt 24 is slidably arranged in the long groove. A pressing piece 26 is arranged between the mounting platform 6 and the adjusting bolt 24, and the adjusting nut 25 is connected with the thread 19 on the adjusting bolt 24. The adjusting nut 25 fixes the pressing plate 44 on the worktable 2, and the pressing piece 26 fixes the mounting platform 6 on the worktable 2. Loosening the adjusting nut 25 allows the mounting platform 6 to slide on the worktable 2, and tightening the adjusting nut 25 fixes the mounting platform 6 on the worktable 2. A rotating box 7 is installed on the mounting platforms 6 at both ends by bolts, and the two rotating The box 7 is provided with a rotating disk 8 on each side facing each other, and the rotating disks 8 at both ends rotate coaxially, and the two ends of the mounting plate 3 in the length direction are respectively mounted on the two rotating disks 8; a power part 9 is mounted on one of the two rotating boxes 7, and the power part 9 drives the rotating disk 8 to rotate. In this embodiment, the power part 9 uses a reduction motor; the sliding setting of the mounting table 6 can adjust the distance between the two mounting tables 6, so that it is suitable for mounting plates 3 of different lengths. The synchronous sliding of the mounting table 6 can adjust the position of the mounting plate 3 on the work surface 2, so as to adjust the drilling position. The rotating disk 8 drives the mounting disk to rotate, and after the drilling is completed at one end of the rear axle rocker, the other end can be drilled by rotating without re-clamping, thereby improving the drilling efficiency.

[0033] Reference Figure 2 and Figure 3, the rotating disk 8 is rotatably arranged on the rotating box 7 through the rotating shaft 10, and a positioning mechanism 11 is arranged between the rotating shaft 10 and the mounting platform 6. The positioning mechanism 11 includes a positioning ring 111 which is detachably sleeved on the rotating shaft 10, a plurality of positioning grooves 112 evenly arranged on the positioning ring 111, and a positioning piece 113 which is slidingly arranged on the mounting platform 6. In this embodiment, the number of the positioning grooves 112 is two, and the positions of the two positioning grooves 112 are respectively arranged on the opposite sides of the drilling direction of the rear axle rocker. An elastic member 12 is arranged between the positioning piece 113 and the mounting platform 6. In this embodiment, the elastic member 12 is a spring, one end of the spring is fixed on the mounting platform 6, and the other end is fixed on the positioning piece 113. A guide plate 13 is fixed on the mounting platform 6, and the guide plate 13 can guide the sliding of the positioning piece 113. The elastic member 12 drives the positioning piece 113 to abut against the positioning ring 111. When the positioning groove 112 rotates to the area of ​​the positioning piece 113, that is, the rear axle rocker is in a state where drilling is required, The elastic member 12 drives the positioning member 113 to slide and insert into the positioning groove 112; the positioning member 113 includes a positioning platform 1131 and a positioning wheel 1132, the positioning platform 1131 is slidably set on the mounting platform 6, the positioning platform 1131 is fixed to the elastic member 12, and the positioning wheel 1132 is rotatably set on the positioning platform 1131, and the positioning wheel 1132 abuts against the positioning ring 111. Guide arc surfaces are provided on both sides of the positioning groove 112. On the one hand, it is convenient for the positioning ring 111 to enter the positioning groove 112, and on the other hand, it is possible to perform appropriate deviation correction when there is a deviation in rotation, and the positioning wheel 1132 is allowed to enter the positioning groove 112 through the rotation of the rotating disk 8; the setting of the positioning mechanism 11 can position the rotating disk 8 during drilling, reduce the probability of drilling of the rotating disk 8 during drilling and affecting the drilling, and use the positioning wheel 1132 for positioning. Under normal circumstances, the positioning wheel 1132 can cooperate with the positioning ring 111 to guide the rotation of the rotating disk 8, so that the rotation of the rotating disk 8 is more stable.

[0034] Reference Figure 4 The drilling mechanism 5 also includes a transverse electric cylinder 52 horizontally installed in the machine body 1 along the length direction of the machine body 1, a vertical electric cylinder 53 vertically installed on the sliding platform of the transverse electric cylinder 52, and a longitudinal electric cylinder 54 horizontally installed on the sliding platform of the vertical electric cylinder 53 along the width direction of the machine body 1. The longitudinal drill bit 51 is installed on the sliding platform of the longitudinal electric cylinder 54. The transverse electric cylinder 52 drives the vertical electric cylinder 53 to slide along the length direction of the machine body 1, the vertical electric cylinder 53 drives the longitudinal electric cylinder 54 to slide along the height direction of the machine body 1, and the longitudinal electric cylinder 54 drives the drill bit 51 to slide along the width direction of the machine body 1. The drill bit 51 can be adjusted on three axes by the transverse electric cylinder 52, the vertical electric cylinder 53 and the longitudinal electric cylinder 54, so as to facilitate the adjustment of the drilling position and the drilling depth.

[0035] Reference Figure 2 and Figure 5The clamping mechanism 4 includes a support platform 41 fixedly arranged in the middle position of the mounting plate 3 in the width direction, two clamping platforms 42 respectively arranged at both ends of the mounting plate 3 in the width direction, a clamping bolt 43 connected to the clamping platform 42 by a thread 19, and a pressing plate 44 slidably arranged on the mounting plate 3. The top of the support platform 41 is provided with an inclined surface 14, the clamping platform 42 is arranged on the side of the inclined surface 14 of the support platform 41, and the clamping platform 42 is provided with a clamping opening 15 facing the inclined surface 14. The clamping platforms 42 of the two sets of clamping mechanisms 4 are away from the clamping opening 15. One side is connected and fixed to each other, one end of the clamping bolt 43 extends into the clamping opening 15, and the pressure plate 44 slides toward or away from the support platform 41; the support platform 41 is used to support the connecting shaft, and the opening of the inclined surface 14 can guide the connecting shaft to slide, so that the rear forks at both ends of the connecting shaft slide into the clamping opening 15, and then the rear forks are fixed by abutting against the rear forks through the clamping bolt 43, and the connecting shaft is fixed by the sliding pressure plate 44, so that the clamping mechanism 4 can be suitable for special-shaped forklift rear axle rocker arms, which is convenient for fixing the rear axle rocker arms when drilling.

[0036] Reference Figure 2 and Figure 5 A top plate 16 is fixedly provided on the side of the support platform 41 away from the clamping platform 42, and a top plate bolt 17 is connected to the thread 19 on the top plate 16. The top plate 16 cooperates with the top plate bolt 17 to reduce the probability of the rear axle rocker arm detaching from the opening side of the clamping port 15, thereby improving the stability of the clamping; a guide rod 18 is vertically fixedly provided on the mounting plate 3, and the guide rod 18 passes through the pressure plate 44. A thread 19 is provided at the end of the guide rod 18 away from the mounting plate 3. A positioning nut 20 is connected to the thread 19 on the guide rod 18, and the positioning nut 20 abuts against the side of the pressure plate 44 away from the mounting plate 3. The guide rod 18 is used to guide the pressure plate 44. The guide rod 18 cooperates with the positioning nut 20 to reduce the probability of the pressure plate 44 slipping away from the rear axle rocker arm, thereby reducing The probability of the rear axle rocker arm detaching; a connecting block 21 is fixedly provided on the mounting plate 3, and the connecting block 21 connects the two clamping platforms 42. Two positioning plates 22 are fixedly provided on the connecting block 21, and the positioning plates 22 extend toward the direction of the supporting platform 41. The positioning plates 22 are connected with positioning bolts 23 on the threads 19 away from the connecting block 21. The positioning bolts 23 on the two positioning plates 22 face opposite directions. The connecting block 21 connects the two clamping platforms 42 to improve the structural strength of the clamping platforms 42, and at the same time provides installation space for the positioning plates 22. The two positioning plates 22 cooperate with the positioning bolts 23 facing opposite directions to abut the plate body through the positioning bolts 23, thereby limiting the slippage of the rear axle rocker arm in the length direction of the connecting shaft, and further improving the stability of the rear axle rocker arm clamping. The implementation principle of the embodiment of the present application is as follows: after adjusting the spacing of the mounting platform 6, the mounting plate 3 is mounted on the two rotating disks 8, the connecting shaft of the rear axle rocker is placed on the support platform 41, and under the guidance of the inclined surface 14, the rear axle rocker slides toward the clamping platform 42 to allow the rear fork to enter the clamping opening 15, and then the positioning bolt 23 is rotated to make the two positioning bolts 23 respectively abut against the two plates of the rear axle rocker to limit the sliding of the rear axle rocker in the length direction, and then the top plate bolt 17 is rotated to abut against the end of the rear axle rocker away from the clamping opening 15 to limit the sliding of the rear axle rocker in the direction away from the clamping opening 15, and then the clamping bolt 43 is rotated to abut against the rear fork through the clamping bolt 43, and then the rear axle rocker is completed. The mounting plate 3 is clamped and fixed, and the mounting plate 3 is rotated so that the end of the rear axle rocker that needs to be drilled faces the drill bit 51. At this time, the positioning wheel 1132 abuts against the positioning groove 112 away from the drilling direction under the elastic force of the elastic member 12, and the rear axle rocker is drilled and expanded by the drilling mechanism 5. After the drilling and expansion of one end of the rear axle rocker is completed, the mounting plate 3 is rotated to rotate the rear axle rocker 180 degrees so that the positioning wheel 1132 abuts against the positioning groove 112 away from the drilling direction under the elastic force of the elastic member 12, and the other end of the rear axle rocker is drilled and expanded by the drilling mechanism 5. After the drilling and expansion of both ends of the rear axle rocker are completed, the rear axle rocker is removed to complete the expansion processing of the rear axle rocker.

[0037] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A forklift rear axle rocker processing technology, comprising the following steps: S1: Casting parts, the rear fork and the plate body are cast through a mold, the mold for casting the rear fork and the plate body is a core-pulling mold, the holes on the rear fork and the plate body are pre-cast through the core-pulling mold, and the pre-casting hole diameter is smaller than the actual required hole diameter; S2: Surface grinding, grinding the surface of the cast rear fork and plate body, as well as the connecting pipe cut to a suitable length; S3: welding, using a welding gun to weld and fix the plate body and the rear fork to the connecting pipe to form a rear axle rocker blank; S4: expanding the hole, installing the rear axle rocker arm blank in the drilling equipment to expand and drill the pre-cast hole; S5: Grinding inside the hole, grinding the inner wall of the hole after expansion to remove the burrs generated during expansion; S6: Spray paint the rear axle rocker except the hole; S7: Transfer and stacking: transfer the rear axle rocker arms after surface painting to the storage area for stacking.

2. A forklift rear axle rocker processing technology according to claim 1, characterized in that: After the expansion is completed, chamfer the ends of the hole.

3. A drilling device for a forklift rear axle rocker, used in the forklift rear axle rocker processing process according to claim 2, characterized in that: The invention comprises a machine body (1), wherein a work surface (2) is arranged in the machine body (1), a mounting plate (3) is arranged on the work surface (2), a clamping mechanism (4) for clamping a rear axle waist bar is mounted on the mounting plate (3), a drilling mechanism (5) is arranged above the mounting plate (3), the drilling mechanism (5) comprises a drill bit (51), and the drill bit (51) slides in a direction approaching or moving away from the clamping mechanism (4).

4. The drilling device for a forklift rear axle rocker according to claim 3, characterized in that: Both ends of the worktable (2) in the length direction are provided with mounting platforms (6), and both ends of the mounting platforms (6) are provided with rotating boxes (7). The rotating boxes (7) are provided with rotating disks (8) for rotation, and the rotating disks (8) at both ends rotate coaxially. Both ends of the mounting plate (3) in the length direction are respectively installed on two rotating disks (8), and one of the two rotating boxes (7) is provided with a power member (9), and the power member (9) drives the rotating disk (8) to rotate.

5. The drilling device for a forklift rear axle rocker according to claim 4, characterized in that: The rotating disk (8) is rotatably arranged on the rotating box (7) via a rotating shaft (10); a positioning mechanism (11) is arranged between the rotating shaft (10) and the mounting platform (6); the positioning mechanism (11) comprises a positioning ring (111), a positioning groove (112) and a positioning member (113); the positioning ring (111) is sleeved on the rotating shaft (10); a plurality of positioning grooves (112) are evenly arranged on the positioning ring (111); the positioning member (113) is slidably arranged on the mounting platform (6); an elastic member (12) is arranged between the positioning member (113) and the mounting platform (6); the elastic member (12) drives the positioning member (113) to abut against the positioning ring (111); when the positioning groove (112) rotates to the region of the positioning member (113), the elastic member (12) drives the positioning member (113) to slide and insert into the positioning groove (112).

6. The drilling device for a forklift rear axle rocker according to claim 5, characterized in that: The positioning member (113) comprises a positioning platform (1131) and a positioning wheel (1132); the positioning platform (1131) is slidably disposed on the mounting platform (6); the positioning wheel (1132) is rotatably disposed on the positioning platform (1131); and the positioning wheel (1132) abuts against the positioning ring (111).

7. The drilling device for a forklift rear axle rocker according to claim 3, characterized in that: The drilling mechanism (5) further comprises a transverse electric cylinder (52), a vertical electric cylinder (53) and a longitudinal electric cylinder (54); the transverse electric cylinder (52) is horizontally mounted in the machine body (1); the vertical electric cylinder (53) is vertically mounted on the transverse electric cylinder (52); the longitudinal electric cylinder (54) is horizontally mounted on the vertical electric cylinder (53); the drill bit (51) is mounted on the longitudinal electric cylinder (54); the transverse electric cylinder (52) drives the vertical electric cylinder (53) to slide along the length direction of the machine body (1); the vertical electric cylinder (53) drives the longitudinal electric cylinder (54) to slide along the height direction of the machine body (1); and the longitudinal electric cylinder (54) drives the drill bit (51) to slide along the width direction of the machine body (1).

8. The drilling device for a forklift rear axle rocker according to claim 3, characterized in that: The clamping mechanism (4) comprises a support platform (41), a clamping platform (42), a clamping bolt (43) and a pressure plate (44); the support platform (41) is fixedly arranged at the middle position of the mounting plate (3) in the width direction; a slope (14) is provided on the top of the support platform (41); there are two clamping platforms (42), which are respectively arranged at two ends of the mounting plate (3) in the width direction; the clamping platform (42) is arranged on one side of the support platform (41) facing the slope (14); a clamping opening (15) is provided on the clamping platform (42) facing the slope (14); the clamping bolt (43) is threadedly connected to the clamping platform (42); one end of the clamping bolt (43) extends into the clamping opening (15); the pressure plate (44) is slidably arranged on the mounting plate (3); the pressure plate (44) slides in a direction close to or away from the support platform (41).

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