High-precision step pitch adjusting device for pin shaft punching

Abstract

The high-precision step pitch adjusting device comprises a machining box body, a linear sliding table is installed at the top in the machining box body, a hydraulic oil cylinder is installed at the bottom of a sliding block of the linear sliding table, a lifting top plate is installed on a piston rod of the hydraulic oil cylinder, and a drilling machine is installed at the bottom of the lifting top plate. A fixing bottom plate is installed in the machining box body, a left fixing plate is installed on one side of the surface of the fixing bottom plate, a right sliding plate is arranged on the other side of the surface of the fixing bottom plate, a multi-stage telescopic air cylinder is installed on the side wall of the machining box body, and fixing grooves are formed in the surfaces of the left fixing plate and the right sliding plate correspondingly. Limiting plates are installed on the surfaces of the left fixing plate and the right sliding plate, power push rods are installed on the limiting plates, and triangular positioning plates are installed at the telescopic ends of the power push rods. The clamping device has the beneficial effects that the clamping and fixing effects are good, the displacement of the pin shaft is avoided, the positioning precision is improved, the working efficiency is improved, and the production quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pin shaft processing, in particular to a high-precision step adjustment device for pin shaft drilling. Background Art

[0002] Pins are a type of standardized fastener that can be used for both static fixing and relative movement with the connected parts. They are primarily used at the hinged joints between two parts to create articulated connections. Depending on their function, pins require a pin hole at their end. This pin hole is used for positioning during the machining of shaft parts, so its quality significantly impacts machining accuracy. Improper hole positioning can result in poor pin machining quality.

[0003] Utility model application number CN202220605374.6 discloses a step adjustment device for pin hole drilling. The pin hole position is determined by manually sliding a first sliding plate, and turning a crank to rotate a screw. Because a second sliding plate is meshed with the screw, the position of the second sliding plate can be more accurately adjusted as the screw rotates slowly, thereby adjusting the step distance. A scale is provided on the outer surface of the observation slot and measuring plate, allowing for better determination of the pin hole position.

[0004] The above-mentioned device determines the position of the pin hole through manual adjustment. The adjustment process is cumbersome, time-consuming and labor-intensive, with high labor intensity and low work efficiency. The pin shaft is fixed by two fixing grooves. When punching, the pin shaft is easy to rotate and move, and the center part of the pin shaft cannot be supported. It is easy to cause the pin shaft to bend and deform during punching, thereby reducing production quality.

[0005] It should be noted that the above content falls within the technical knowledge of the inventor and does not necessarily constitute prior art. Utility Model Content

[0006] The purpose of the utility model is to solve the above problems and to design a high-precision step adjustment device for pin drilling.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A high-precision step adjustment device for pin drilling comprises a processing box body, wherein a linear slide is installed on the top of the processing box body, a hydraulic cylinder is installed at the bottom of the slider of the linear slide, a lifting top plate is installed on the piston rod of the hydraulic cylinder, and a drilling machine is installed at the bottom of the lifting top plate. A fixed bottom plate is installed in the processing box body, a left fixed plate is installed on one side of the surface of the fixed bottom plate, and a right sliding plate is provided on the other side of the surface of the fixed bottom plate. A multi-stage telescopic cylinder is installed on the side wall of the processing box body, and the telescopic end of the multi-stage telescopic cylinder is fixedly connected to the right sliding plate, and the surfaces of the left fixed plate and the right sliding plate are both provided with fixed grooves, and limit plates are installed on the surfaces of the left fixed plate and the right sliding plate, and a power push rod is installed on the limit plate, and the telescopic end of the power push rod faces downward, and a triangular positioning plate is installed on the telescopic end of the power push rod, and the triangular positioning plate is located above the fixed groove.

[0009] Furthermore, a left side plate is installed on the surface of the left fixed plate, an infrared rangefinder is installed on the left side plate, a laser point outlet of the infrared rangefinder is on the same horizontal line as the left end of the fixed slot on the left fixed plate, a right side plate is installed on the surface of the right sliding plate, the left side of the right side plate is on the same horizontal line as the right end of the fixed slot on the right sliding plate, a ranging plate is installed on the bottom of the lifting top plate, the ranging plate is located behind the drilling machine, and the left side of the ranging plate is on the same horizontal line as the axial center of the drilling machine.

[0010] Furthermore, a transverse through groove is provided on the fixed bottom plate, a guide slider is installed at the bottom of the right sliding plate, the guide slider is slidably connected to the transverse through groove, and a collection drawer is provided in the processing box body, and the collection drawer is located below the fixed bottom plate.

[0011] Furthermore, a movable slider is slidably connected in the transverse through groove, and the movable slider is located between the left fixed plate and the right sliding plate. An arc-shaped support plate is installed on the movable slider, and a plurality of universal ball bearings are provided on the arc-shaped support plate.

[0012] Furthermore, the left side plate, the right side plate and the ranging plate are of the same size and thickness and are located on the same horizontal line.

[0013] Furthermore, adjustable supporting legs are installed at the four corners of the bottom of the processing box.

[0014] Compared with the existing technology, this technical solution has the following beneficial effects:

[0015] Through the fixing grooves on the left fixed plate and the right sliding plate, pins of different lengths can be clamped. It is suitable for pins of different lengths. The triangular positioning plate is pressed on the pin to clamp and fix the pin. The clamping and fixing effect is good, which avoids the displacement of the pin and improves the punching effect.

[0016] The infrared rangefinder can measure the length of the pin shaft, which is convenient for measuring the distance of the punching hole, and can better determine the position of the pin hole, thereby improving the positioning accuracy, eliminating the need for manual operation, reducing labor intensity, and improving work efficiency.

[0017] The center of the pin shaft can be supported by the arc support plate and universal ball, avoiding the pin shaft from bending and deformation during drilling, thereby improving production quality. The collection drawer can be used to collect debris and facilitate cleaning of the debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a high-precision step adjustment device for pin drilling described in the utility model.

[0019] Figure 2 A top view of the fixed base plate.

[0020] Figure 3 This is an enlarged right view of the left fixing plate.

[0021] Figure 4 An enlarged side view of the lifting top plate.

[0022] In the figure: 1. Processing box; 2. Linear slide; 3. Hydraulic cylinder; 4. Lifting top plate; 5. Drilling machine; 6. Fixed bottom plate; 7. Left fixed plate; 8. Right sliding plate; 9. Multi-stage telescopic cylinder; 10. Fixed slot; 11. Limit plate; 12. Power push rod; 13. Triangular positioning plate; 14. Left side plate; 15. Infrared rangefinder; 16. Right side plate; 17. Distance measuring plate; 18. Horizontal through slot; 19. Guide slide; 20. Collection drawer; 21. Moving slide; 22. Arc support plate; 23. Universal ball bearing; 24. Adjustable support leg. DETAILED DESCRIPTION

[0023] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of 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 making creative efforts shall fall within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be understood that the terms "length," "width," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, in the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0025] The utility model provides Figure 1-4 The shown device is a high-precision step adjustment device for pin drilling, comprising a processing box 1, a linear slide 2 installed on the top of the processing box 1, a hydraulic cylinder 3 installed at the bottom of the slider of the linear slide 2, a lifting top plate 4 installed on the piston rod of the hydraulic cylinder 3, a drilling machine 5 installed at the bottom of the lifting top plate 4, a fixed bottom plate 6 installed in the processing box 1, a left fixed plate 7 installed on one side of the surface of the fixed bottom plate 6, a right sliding plate 8 provided on the other side of the surface of the fixed bottom plate 6, a multi-stage telescopic cylinder 9 installed on the side wall of the processing box 1, the telescopic end of the multi-stage telescopic cylinder 9 is fixedly connected to the right sliding plate 8, fixed grooves 10 are provided on the surfaces of the left fixed plate 7 and the right sliding plate 8, a limiting plate 11 is installed on the surface of the left fixed plate 7 and the right sliding plate 8, a power push rod 12 is installed on the limiting plate 11, the telescopic end of the power push rod 12 is downward, a triangular positioning plate 13 is installed on the telescopic end of the power push rod 12, and the triangular positioning plate 13 is located above the fixed groove 10.

[0026] When in use, the left end of the pin shaft is placed in the fixing groove 10 of the left fixed plate 7, and the multi-stage telescopic cylinder 9 starts to work. The telescopic end of the multi-stage telescopic cylinder 9 is extended and retracted to drive the right sliding plate 8 to move the position, so that the right end of the pin shaft is placed in the fixing groove 10 of the right sliding plate 8, which is suitable for pin shafts of different lengths. Pin shafts of different lengths can be clamped, and the power push rod 12 starts to work. The telescopic end of the power push rod 12 extends in to drive the triangular positioning plate 13 to move downward. The triangular positioning plate 13 presses on the pin shaft to clamp and fix the pin shaft. The clamping and fixing effect is good, which avoids the displacement of the pin shaft and improves the punching effect. The slider of the linear slide 2 drives the hydraulic cylinder 3 and the drilling machine 5 to move. After the drill rod of the drilling machine 5 moves to the drilling position, the piston rod of the hydraulic cylinder 3 extends in through the lifting top plate 4 to drive the drilling machine 5 to move downward. The drilling machine 5 starts to work and punches holes on the pin shaft through the drill rod.

[0027] Refer to the instruction manual Figure 2 , Instruction Manual Figure 3 and instructions attached Figure 4A left side plate 14 is installed on the surface of the left fixed plate 7, and an infrared rangefinder 15 is installed on the left side plate 14. The laser point outlet of the infrared rangefinder 15 is at the same horizontal line as the left end of the fixed groove 10 on the left fixed plate 7. A right side plate 16 is installed on the surface of the right sliding plate 8. The left side of the right side plate 16 is at the same horizontal line as the right end of the fixed groove 10 on the right sliding plate 8. A ranging plate 17 is installed at the bottom of the lifting top plate 4. The ranging plate 17 is located behind the drilling machine 5, and the left side of the ranging plate 17 is at the same horizontal line as the axial center of the drilling machine 5.

[0028] The left end of the pin shaft is on the same horizontal line as the laser point outlet of the infrared rangefinder 15, and the right end of the pin shaft is on the same horizontal line as the left side of the right side plate 16. The infrared rangefinder 15 irradiates infrared rays on the left side of the right side plate 16 to measure the length of the pin shaft. When the hydraulic cylinder 3 drives the lifting top plate 4 to descend, the lifting top plate 4 drives the drilling machine 5 and the ranging plate 17 to descend at the same time. The ranging plate 17 blocks the front of the right side plate 16. The infrared rays of the infrared rangefinder 15 are irradiated on the ranging plate 17, which is convenient for measuring the distance of the drilling, can better determine the position of the pin hole, improves the positioning accuracy, does not require manual operation, reduces the labor intensity, and improves work efficiency.

[0029] Refer to the instruction manual Figure 1 and instructions attached Figure 2 A transverse through groove 18 is provided on the fixed bottom plate 6, and a guide slider 19 is installed at the bottom of the right sliding plate 8. The guide slider 19 is slidingly connected to the transverse through groove 18. A collection drawer 20 is provided in the processing box 1, and the collection drawer 20 is located below the fixed bottom plate 6.

[0030] When the right sliding plate 8 moves, the right sliding plate 8 drives the guide slider 19 to slide along the transverse groove 18, and the right sliding plate 8 is guided by the guide slider 19. When punching a hole on the pin shaft, the debris generated by the punching falls into the collection drawer 20 through the transverse groove 18, which is convenient for collecting the debris and cleaning the debris.

[0031] Refer to the instruction manual Figure 2 A movable slider 21 is slidably connected in the transverse through groove 18 , and the movable slider 21 is located between the left fixed plate 7 and the right sliding plate 8 . An arc-shaped support plate 22 is installed on the movable slider 21 , and a plurality of universal balls 23 are provided on the arc-shaped support plate 22 .

[0032] The movable slider 21 can slide along the transverse groove 18. The center of the pin is located on the arc support plate 22 and contacts the universal ball 23, which can support the pin and avoid bending and deformation of the pin during drilling, thereby improving production quality.

[0033] Refer to the instruction manual Figure 1 Adjustable supporting legs 24 are installed at the four corners of the bottom of the processing box 1.

[0034] The level of the processing box 1 can be adjusted by the adjustable supporting legs 24 so that the pin is in a horizontal position.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A high-precision step adjustment device for pin drilling, comprising a processing box (1), a linear slide (2) installed on the top of the processing box (1), a hydraulic cylinder (3) installed on the bottom of the slider of the linear slide (2), a lifting top plate (4) installed on the piston rod of the hydraulic cylinder (3), and a drilling machine (5) installed on the bottom of the lifting top plate (4), characterized in that: A fixed base plate (6) is installed in the processing box (1), a left fixed plate (7) is installed on one side of the surface of the fixed base plate (6), and a right sliding plate (8) is installed on the other side of the surface of the fixed base plate (6). A multi-stage telescopic cylinder (9) is installed on the side wall of the processing box (1), and the telescopic end of the multi-stage telescopic cylinder (9) is fixedly connected to the right sliding plate (8). The surfaces of the left fixed plate (7) and the right sliding plate (8) are both provided with a fixing groove (10). A limiting plate (11) is installed on the surface of the left fixed plate (7) and the right sliding plate (8). A power push rod (12) is installed on the limiting plate (11), and the telescopic end of the power push rod (12) is downward. A triangular positioning plate (13) is installed on the telescopic end of the power push rod (12), and the triangular positioning plate (13) is located above the fixing groove (10).

2. A high-precision step adjustment device for pin drilling according to claim 1, characterized in that: A left side plate (14) is mounted on the surface of the left fixed plate (7), an infrared rangefinder (15) is mounted on the left side plate (14), a laser point outlet of the infrared rangefinder (15) and the left end of the fixed groove (10) on the left fixed plate (7) are on the same horizontal line, a right side plate (16) is mounted on the surface of the right sliding plate (8), the left side of the right side plate (16) and the right end of the fixed groove (10) on the right sliding plate (8) are on the same horizontal line, a rangefinder plate (17) is mounted on the bottom of the lifting top plate (4), the rangefinder plate (17) is located behind the drilling machine (5), and the left side of the rangefinder plate (17) and the axial center of the drilling machine (5) are on the same horizontal line.

3. A high-precision step adjustment device for pin drilling according to claim 1, characterized in that: The fixed bottom plate (6) is provided with a transverse through groove (18), the bottom of the right sliding plate (8) is provided with a guide slider (19), the guide slider (19) is slidably connected to the transverse through groove (18), and a collection drawer (20) is provided in the processing box (1), and the collection drawer (20) is located below the fixed bottom plate (6).

4. A high-precision step adjustment device for pin drilling according to claim 3, characterized in that: A movable slider (21) is slidably connected in the transverse through groove (18), and the movable slider (21) is located between the left fixed plate (7) and the right sliding plate (8). An arc-shaped support plate (22) is mounted on the movable slider (21), and a plurality of universal balls (23) are provided on the arc-shaped support plate (22).

5. A high-precision step adjustment device for pin drilling according to claim 2, characterized in that: The left side plate (14), the right side plate (16) and the distance measuring plate (17) are of the same size and thickness and are located on the same horizontal line.

6. A high-precision step adjustment device for pin drilling according to claim 1, characterized in that: Adjustable support legs (24) are installed at the four corners of the bottom of the processing box (1).

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