Drilling equipment for piston rod concentric hole machining

Abstract

The invention discloses drilling equipment for piston rod concentric hole machining, and belongs to the technical field of piston rod machining. The drilling equipment comprises a base, two supports, a filtering mechanism and a chuck, a frame is arranged at the bottom of the base, the bottom of the frame is connected with the top of the base through bolts, and the two supports are arranged on the two sides of the other end of the base; the piston rod drilling device has the beneficial effects that when the feeding amount of a piston rod body is large, a push plate stops advancing, a push seat continues to move, a first spring is compressed, and the first spring is compressed; due to the elastic pushing effect of the spring, the feeding amount of the piston rod can be automatically adjusted, and the risk that the drill bit is overloaded and fractured due to the overlarge feeding amount is effectively avoided.

Description

Technical Field

[0001] The present application relates to the technical field of piston rod processing, and in particular to a drilling device for processing concentric holes of piston rods. Background Art

[0002] The piston rod is a key connecting component in the hydraulic cylinder and pneumatic cylinder motion actuators, and its processing quality directly affects the life and reliability of the product.

[0003] After searching, the Chinese patent publication number CN110576202B discloses a drilling device for processing concentric holes in piston rods. Although the drilling device can replace the drill bit according to the size of the piston rod hole diameter during the drilling process, thereby improving the practicability of the device, the drilling device strictly controls the drill feed amount according to the hardness of the piston rod during the drilling process. When the drill feed amount is too much, it will cause the drill bit to break, which in turn affects the processing efficiency and increases the processing difficulty.

[0004] After searching, the Chinese patent publication number CN211727580U discloses a positioning drilling device for piston rod processing. Although the device uses the right side of the second groove inner cavity as the positioning reference through the design of the positioning device, the positioning accuracy is high and it is convenient to drill holes in the piston rod, thereby achieving the effect of dust removal function and solving the problem that the existing device does not have the dust removal function, but the direct use of a large drill bit in the device may cause inaccurate hole positioning and large hole position deviation, which affects the assembly and performance of the piston rod. Summary of the invention

[0005] One of the purposes of the present application is to provide a drilling device for machining concentric holes of piston rods to solve the problems of high machining difficulty and inaccurate hole positioning in existing equipment.

[0006] In order to achieve the above purpose, the technical solution adopted in the present application is: a drilling device for processing concentric holes of piston rods, comprising: a base, a bracket, a filtering mechanism and a chuck, a frame is arranged at the bottom of the base, the bottom of the frame is connected to the top of the base by bolts, brackets are arranged on both sides of the other end of the base, two brackets are arranged, a drilling mechanism is arranged between the two brackets, the drilling mechanism is used for drilling holes in the piston rod, the drilling mechanism comprises a punching mechanism and a driving mechanism, the driving mechanism is used to drive the punching mechanism to move horizontally, a filtering mechanism is arranged on one side of the drilling mechanism, and the filtering mechanism The structure is used for cooling and cleaning the drilling mechanism, one end of the filtering mechanism is provided with a propulsion mechanism, one end of the top of the propulsion mechanism is connected to a fixed seat by bolts, a chuck is provided inside the fixed seat, a piston rod body is fixed inside the chuck, the propulsion mechanism is used to propel the piston rod to move, the bottom of the propulsion mechanism is installed on the top of the connecting plate, both sides of the connecting plate are in sliding contact with the inner side of the frame, the inside of the connecting plate is threadedly connected to the first threaded rod, one end of the first threaded rod is rotatably connected to the frame, the other end of the first threaded rod is sleeved on the outside of the output end of the first motor, and the first motor is installed on the top of the base by bolts.

[0007] Preferably, the driving mechanism includes a second motor, which is installed on one side of the bracket by screws, and a second threaded rod is mounted on the outside of the output end of the second motor, and the outside of the second threaded rod is threadedly connected to the inside of the first slider. Two first sliders are provided, and the two first sliders are connected to each other by screws. The second threaded rod is driven by the second motor and is threadedly connected to the inside of the first slider, so that the two first sliders can move synchronously, and large and small drill bits can be switched with each other, thereby ensuring stability and accuracy during the drilling process.

[0008] Preferably, the punching mechanism includes a third motor, two of which are provided, and the two third motors are installed on the top of the first slider by screws, a third threaded rod is externally mounted on the output end of the third motor, the outside of the third threaded rod is threadedly connected to the inside of the second slider, a drill bit is installed on one side of the second slider by screws, and the drill bit is provided with two specifications, one large and one small. The third threaded rod is driven to rotate by the third motor, so that the third threaded rod can drive the second slider to move up and down, and the position of the drill bit can be adjusted so as to ensure that it is aligned with the piston rod body.

[0009] Preferably, the pushing mechanism includes a horizontal detection mechanism, a push plate and an adjusting mechanism, a hole groove is provided at the bottom of the push plate, and the inside of the two hole grooves at the bottom of the push plate is slidably connected to the two slide grooves at the top of the push seat, the hole groove at the bottom of the push plate is T-shaped, and the shape of the hole groove at the bottom of the push plate is consistent with the cross-section of the slide groove at the top of the push seat, the adjusting mechanism is located between the push plate and the push seat, and is used to elastically push the piston rod body, the horizontal detection mechanism is installed on the top of the push plate, and the top of the horizontal detection mechanism contacts the bottom surface of the piston rod body, the T-shaped hole groove at the bottom of the push plate is slidably connected and shaped consistently with the slide groove at the top of the push seat, thereby ensuring the stability and precise alignment of the push plate when pushing the piston rod, and the elastic pushing action of the adjusting mechanism allows appropriate force to be applied to the piston rod to adapt to different processing requirements and conditions.

[0010] Preferably, the adjusting mechanism includes a sliding rod and a first spring, two sliding rods are provided, and a limiting block is welded at one end of the two sliding rods, the outer wall of the sliding rod is in sliding contact with the inside of the push seat, the outside of the sliding rod is covered with a first spring, the other end of the sliding rod is welded to the bottom of the push plate, the surface of one end of the sliding rod is a threaded structure, and the outside of the sliding rod is threadedly connected to the adjusting nut. When the feed amount of the piston rod body is large, the push plate will stop moving forward, and the push seat will continue to move to compress the first spring, and the first spring will be compressed. The piston rod is pushed forward by the elasticity of the first spring, so that the feed amount of the piston rod body can be adaptively adjusted to avoid the risk of overload and breakage of the drill bit due to excessive feed amount of the piston rod body.

[0011] Preferably, the horizontal detection mechanism includes a lifting plate and a pressure sensor, two pressure sensors are provided, and the tops of the two pressure sensors are in contact with the bottom of the piston rod body, the two pressure sensors are embedded in the top of the lifting plate, the four ends of the lifting plate are slidably connected to the vertical rod, the bottom of the support rod is welded to the top of the push plate, and a second spring is mounted on the outside of the support rod, and the second spring is located between the lifting plate and the push plate. When the piston rod is fixed on the surface of the chuck, the adjusting ring can be loosened by rotating the adjusting ring. When the adjusting ring is loosened, the lifting plate can push the lifting plate upward under the action of the second spring, so that the tops of the two pressure sensors on the top of the lifting plate can contact the bottom surface of the piston rod body, and the two pressure sensors can feed back the detection data to the terminal display. When it is observed that the two pressure sensor values ​​are different, it indicates that the piston rod body is not in a horizontal state.

[0012] Preferably, a threaded column is welded on the top of the push plate, and two threaded columns are provided. The two threaded columns are in sliding contact with the inside of the lifting plate, and the outside of the threaded column is threadedly connected to the adjusting ring. The bottom of the adjusting ring fits tightly with the top surface of the lifting plate. By tightening the adjusting ring, the adjusting ring can be moved downward through the threaded column, and then the lifting plate can be moved downward, so that the pressure sensor can be away from the piston rod body, and the piston rod body can be easily removed.

[0013] Preferably, the filter mechanism includes a guide groove, the guide groove is opened at the top of one end of the push plate, the surface of the guide groove is a sloped structure, one end of the bottom of the guide groove is connected to the inside of the bellows, the outer wall of the bellows is a corrugated structure, and the other end of the bellows is connected to the inside of the filter box, a baffle is provided inside the filter box, the top height of the baffle is lower than the top height of the water tank, and a filter screen is provided at the other end of the filter box, the interior of the cavity below the filter screen is connected to the input end of the water pump, the output end of the water pump is connected to one end of the connecting pipe, and the connecting pipe is connected to the outlet end of the water pump. The other end of the pipe is connected to a nozzle, and the nozzle is installed on one end of the top of the vertical pole. The bottom end of the vertical pole is welded to the top of one end of the guide groove. During the processing of the piston rod body, the nozzle will spray cooling water to spray and cool the drill bit. The cooled waste liquid will flow into the water tank through the bellows and circulate inside the water tank. The iron filings inside the waste liquid can settle between the baffles. The precipitated waste liquid can be filtered through the filter net and then pumped out by the water pump, and then transported to the inside of the nozzle for secondary utilization, thereby improving the utilization rate of water resources.

[0014] Preferably, an adsorption rod is provided between adjacent baffles, the interior of the adsorption rod is a magnet, the adsorption rod is vertically arranged, and one end of the bottom of the adsorption rod is threadedly connected to the bottom of the water tank, and adsorption rings are evenly spaced from top to bottom on the outside of the adsorption rod. During the circulation of waste liquid inside the water tank, it can be adsorbed by the magnetism of the adsorption rod, so that iron filings in the water can be sucked onto the adsorption ring and the adsorption rod, which is conducive to the rapid removal of iron filings in the water.

[0015] Preferably, infrared transmitters are installed on both side surfaces of the fixing seat, infrared receivers are embedded on both side surfaces of the second sliding block, two groups of infrared receivers are provided, which are respectively arranged on both sides of the two drill bits, and the infrared transmitter is electrically connected to the external control terminal.

[0016] Compared with the prior art, the beneficial effects of this application are:

[0017] (1) During use, the device fixes the piston rod body on the chuck, uses the first motor to drive the first threaded rod to rotate, and then drives the push seat to move; the push seat pushes the push plate through the elastic action of the first spring, so that the push plate drives the piston rod body on the chuck to move toward the drill bit, thereby achieving contact between the piston rod body and the drill bit; when the feed amount of the piston rod body is large, the push plate will stop moving, while the push seat continues to move to compress the first spring, resulting in compression of the first spring; the elastic pushing action of this spring enables the feed amount of the piston rod to be automatically adjusted, effectively avoiding the risk of overload and breakage of the drill bit due to excessive feed amount.

[0018] (2) In the operation process of the device, the piston rod body is first drilled by a smaller drill bit; after the drilling is completed, the piston rod body performs a backward movement, and then the second motor is started to drive the second threaded rod to rotate; the rotation of the second threaded rod drives the first slider to move, so that the larger drill bit can be aligned with the piston rod body; during the alignment process, the infrared receiver receives the signal sent by the infrared sensor to ensure the precise alignment of the piston rod and the drill bit; after the alignment is completed, the larger drill bit performs secondary processing on the small hole on the surface of the piston rod; drilling small holes with a small drill bit not only provides more precise positioning and provides an accurate starting point for subsequent drilling with a large drill bit, but also improves the processing accuracy of the entire hole; in addition, using a small drill bit to drill holes first can also reduce the stress concentration of the material during the drilling process, effectively avoiding cracks or fractures in the material due to excessive stress, thereby ensuring the stability of the processing process and the quality of the finished product.

[0019] (3) After the piston rod is fixed to the surface of the chuck, it is loosened by turning the adjustment ring. During the loosening of the adjustment ring, the lifting plate moves upward under the elastic force of the second spring, so that the top of the two pressure sensors on the top of the lifting plate contacts the bottom surface of the piston rod body. The two pressure sensors are responsible for detecting and feeding back data to the terminal display. If there is a difference between the values ​​of the two pressure sensors displayed on the display, it indicates that the piston rod body is not in a horizontal state. The system will promptly remind the operator to adjust the horizontal position of the piston rod body to ensure its level. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a side view structural schematic diagram of the present invention.

[0022] Figure 3 It is a front view structural schematic diagram of the present invention.

[0023] Figure 4 It is a schematic diagram of the water tank structure of the present invention.

[0024] Figure 5It is a schematic diagram of the top structure of the present invention.

[0025] Figure 6 It is a schematic diagram of the structure of the infrared sensor of the present invention.

[0026] Figure 7 It is a schematic diagram of the drill bit structure of the present invention.

[0027] Figure 8 It is a schematic diagram of the structure of the bellows of the present invention.

[0028] Fig. 9 This is a schematic diagram of the first spring structure of the present invention.

[0029] Fig.10 It is a schematic diagram of the structure of the pressure sensor of the present invention.

[0030] In the figure: 1, base; 2, frame; 3, bracket; 4, drilling mechanism; 401, second motor; 402, second threaded rod; 403, first slider; 404, third motor; 405, third threaded rod; 406, second slider; 407, drill; 408, infrared transmitter; 409, infrared receiver; 5, filtering mechanism; 501, guide groove; 502, bellows; 503, filter box; 504, baffle; 505, adsorption rod; 506, adsorption ring; 507, filter; 508, Water pump; 509, connecting pipe; 510, vertical pole; 511, nozzle; 6, propulsion mechanism; 601, pushing seat; 602, sliding rod; 603, adjusting nut; 604, first spring; 605, limit block; 606, push plate; 607, lifting plate; 608, support rod; 609, second spring; 610, threaded column; 611, adjusting ring; 612, pressure sensor; 7, fixing seat; 8, chuck; 9, piston rod body; 10, first motor; 11, first threaded rod; 12, connecting plate. DETAILED DESCRIPTION

[0031] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0032] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

[0033] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0034] One of the preferred embodiments of the present application is as follows: Figures 1 to 9As shown, a drilling device for processing concentric holes of a piston rod comprises: a base 1, a bracket 3, a filtering mechanism 5 and a chuck 8. A frame 2 is arranged at the bottom of the base 1, and the bottom of the frame 2 is connected to the top of the base 1 by bolts. Brackets 3 are arranged on both sides of the other end of the base 1. Two brackets 3 are arranged. A drilling mechanism 4 is arranged between the two brackets 3. The drilling mechanism 4 is used for drilling holes in the piston rod. The drilling mechanism 4 comprises a punching mechanism and a driving mechanism. The driving mechanism is used to drive the punching mechanism to move horizontally. A filtering mechanism 5 is arranged on one side of the drilling mechanism 4. The filtering mechanism 5 is used to cool and clean the drilling mechanism 4. A propulsion mechanism 6 is arranged at one end of the filter mechanism 5. A top end of the propulsion mechanism 6 is connected to a fixing seat 7 by bolts, and a chuck 8 is arranged inside the fixing seat 7. A piston rod body 9 is fixed inside the chuck 8, and a propulsion mechanism 6 is used to propel the piston rod to move. The bottom of the propulsion mechanism 6 is installed on the top of the connecting plate 12. Both sides of the connecting plate 12 are in sliding contact with the inner side of the frame 2. The inside of the connecting plate 12 is threadedly connected with the first threaded rod 11. One end of the first threaded rod 11 is rotatably connected with the frame 2. The other end of the first threaded rod 11 is sleeved on the outside of the output end of the first motor 10. The first motor 10 is installed on the top of the base 1 by bolts. The propulsion mechanism 6 includes a horizontal detection mechanism, a push plate 606 and an adjustment mechanism. A hole groove is provided at the bottom of the push plate 606, and the inside of the two hole grooves at the bottom of the push plate 606 is slidably connected with the two sliding grooves on the top of the push seat 601. The hole groove at the bottom of the push plate 606 is T-shaped, and the shape of the hole groove at the bottom of the push plate 606 is the same as that of the push seat 601. The cross section of the top slide groove of the moving seat 601 is consistent, the adjustment mechanism is located between the push plate 606 and the push seat 601, and is used to elastically push the piston rod body 9. The horizontal detection mechanism is installed on the top of the push plate 606, and the top of the horizontal detection mechanism is in contact with the bottom surface of the piston rod body 9. The T-shaped hole groove at the bottom of the push plate 606 is in sliding connection and shape consistent with the top slide groove of the push seat 601. The adjustment mechanism includes a slide rod 602 and a first spring 604. Two slide rods 602 are provided, and a limiting block 605 is welded at one end of the two slide rods 602. The outer wall of the slide rod 602 is in sliding contact with the inside of the push seat 601. The first spring 604 is mounted on the outside of the slide rod 602. The other end of the slide rod 602 is welded to the bottom of the push plate 606. The surface of one end of the slide rod 602 is a threaded structure, and The outside of the slide rod 602 is threadedly connected with the adjusting nut 603. When the device is in use, the piston rod body 9 is fixed on the chuck 8, and then the first motor 10 drives the first threaded rod 11 to rotate. The first threaded rod 11 can drive the push seat 601 to move while rotating, so that the push seat 601 can elastically push the push plate 606 to move through the first spring 604, so that the push plate 606 can drive the piston rod body 9 on the chuck to move toward the drill bit 407, so that the piston rod body 9 can contact the drill bit 407. When the feed amount of the piston rod body 9 is large, the push plate 606 will stop moving forward, and the push seat 601 will continue to move to compress the first spring 604, so that the first spring 604 will be compressed.The first spring 604 elastically pushes the piston rod to advance, so that the feed amount of the piston rod body 9 can be adaptively adjusted, avoiding the risk of overload and breakage of the drill bit 407 caused by excessive feed amount of the piston rod body 9.

[0035] One of the preferred embodiments of the present application is as follows: Figures 1 to 4 As shown, a drilling device for processing concentric holes of a piston rod, wherein the driving mechanism comprises a second motor 401, which is mounted on one side of a bracket 3 by screws, a second threaded rod 402 is externally sleeved on the output end of the second motor 401, and the second threaded rod 402 is externally threadedly connected to the internal thread of a first slider 403 by screws, two first sliders 403 are provided, and the two first sliders 403 are connected to each other by screws, the second threaded rod 402 is driven by the second motor 401, and is connected to the internal thread of the first slider 403 by screws, the punching mechanism comprises a third motor 404, which is provided with two third motors 404, and the two third motors 404 are mounted on the top of the first slider 403 by screws, a third threaded rod 405 is externally sleeved on the output end of the third motor 404, and the third threaded rod 405 is externally threadedly connected to the internal thread of a second slider 406 by screws, a drill bit 407 is installed on one side of the second slider 406 by screws, and the drill bit 407 is provided with two specifications, one large and one small, infrared transmitters 408 are installed on both sides of the fixing seat 7, and infrared receivers are embedded on both sides of the second slider 406 409, two groups of infrared receivers 409 are provided, which are respectively provided on both sides of the two drill bits 407, and the infrared transmitter 408 is electrically connected to the external control terminal. When the piston rod body 9 is first drilled by the smaller drill bit 407, after the smaller drill bit 407 drills the piston rod body 9, the piston rod body 9 retreats, and then the second threaded rod 402 is driven to rotate by the second motor 401. When the second threaded rod 402 rotates, it can drive the first slider 403 to move, so that the larger drill bit 407 can Align with the piston rod body 9, and then feedback the signal sent by the infrared sensor through the infrared receiver 409 to ensure that the piston rod is aligned with the drill bit 407, so that the larger drill bit 407 can perform secondary processing on the small hole on the surface of the piston rod. The small drill bit 407 can provide more precise positioning for drilling small holes, and provide an accurate starting point for the subsequent large drill bit 407 to drill holes, thereby improving the processing accuracy of the entire hole. Drilling with the small drill bit 407 first can reduce the stress concentration of the material during the drilling process, and avoid cracks or fractures in the material due to excessive stress.

[0036] One of the preferred embodiments of the present application is as follows: Figures 1 to 6As shown, a drilling device for processing concentric holes of a piston rod, the horizontal detection mechanism includes a lifting plate 607 and a pressure sensor 612, two pressure sensors 612 are provided, and the tops of the two pressure sensors 612 are in contact with the bottom of the piston rod body 9, the two pressure sensors 612 are embedded in the top of the lifting plate 607, the four ends of the lifting plate 607 are slidably connected with the vertical rod 510, the bottom of the support rod 608 is welded to the top of the push plate 606, the outside of the support rod 608 is sleeved with a second spring 609, the second spring 609 is located between the lifting plate 607 and the push plate 606, the top of the push plate 606 is welded with a threaded column 610, and two threaded columns 610 are provided, the two threaded columns 610 are in sliding contact with the inside of the lifting plate 607, and the outside of the threaded column 610 is threadedly connected with the adjusting ring 611, the adjusting ring 611 The bottom is tightly fitted with the top surface of the lifting plate 607. When the piston rod is fixed on the surface of the chuck 8, the adjusting ring 611 can be loosened by rotating the adjusting ring 611. When the adjusting ring 611 is loosened, the lifting plate 607 is acted upon by the second spring 609, so that the second spring 609 can push the lifting plate 607 upward, so that the tops of the two pressure sensors 612 on the top of the lifting plate 607 can contact the bottom surface of the piston rod body 9, and the two pressure sensors 612 can feed back the detection data to the terminal display. When it is observed that the values ​​of the two pressure sensors 612 are different, it indicates that the piston rod body 9 is not in a horizontal state, so the operator is promptly reminded to adjust the level of the piston rod body 9, which is beneficial to improve the machining accuracy of the piston rod body 9.

[0037] One of the preferred embodiments of the present application is as follows: Figures 1 to 4As shown, a drilling device for machining concentric holes of piston rods, the filter mechanism 5 includes a guide groove 501, the guide groove 501 is opened at the top of one end of the push plate 606, the surface of the guide groove 501 is a slope structure, one end of the bottom of the guide groove 501 is connected to the inside of the bellows 502, the outer wall of the bellows 502 is a corrugated structure, and the other end of the bellows 502 is connected to the inside of the filter box 503, the filter box 503 is provided with a baffle 504, the top of the baffle 504 The height is lower than the top height of the water tank, and a filter screen 507 is arranged at the other end of the filter box 503, the interior of the cavity below the filter screen 507 is connected to the input end of the water pump 508, the output end of the water pump 508 is connected to one end of the connecting pipe 509, and the other end of the connecting pipe 509 is connected to the nozzle 511, the nozzle 511 is installed at one end of the top of the vertical pole 510, and the bottom end of the vertical pole 510 is welded to the top of one end of the guide groove 501, and an adsorption rod 50 is arranged between adjacent baffles 504. 5. There is a magnet inside the adsorption rod 505. The adsorption rod 505 is arranged vertically, and one end of the bottom of the adsorption rod 505 is threadedly connected to the bottom of the water tank. The outside of the adsorption rod 505 is evenly spaced from top to bottom. The nozzle 511 will spray cooling water to spray and cool the drill bit 407 during the processing of the piston rod body 9. The cooled waste liquid will flow into the water tank through the bellows 502 and circulate inside the water tank. The iron filings inside the waste liquid can be precipitated between the baffles 504. The precipitated waste liquid can be filtered through the filter screen 507 and then pumped out by the water pump 508, and then transported to the inside of the nozzle 511 for secondary utilization, thereby improving the utilization rate of water resources. The waste liquid can be adsorbed by the magnetism of the adsorption rod 505 during the circulation inside the water tank, so that the iron filings in the water can be adsorbed to the adsorption ring 506 and the adsorption rod 505, which is conducive to the rapid removal of iron filings in the water.

[0038] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A drilling device for machining concentric holes of piston rods, characterized in that: include: A base (1), a bracket (3), a filtering mechanism (5) and a chuck (8), wherein a frame (2) is arranged at the bottom of the base (1), the bottom of the frame (2) is connected to the top of the base (1) by bolts, brackets (3) are arranged on both sides of the other end of the base (1), two brackets (3) are arranged, a drilling mechanism (4) is arranged between the two brackets (3), the drilling mechanism (4) is used for drilling holes of a piston rod, the drilling mechanism (4) comprises a drilling mechanism and a driving mechanism, the driving mechanism is used to drive the drilling mechanism to move in a horizontal direction, a filtering mechanism (5) is arranged on one side of the drilling mechanism (4), and the filtering mechanism (5) is used to cool and clean the drilling mechanism (4); A propulsion mechanism (6) is provided at one end of the filtering mechanism (5), and a top end of the propulsion mechanism (6) is connected to a fixing seat (7) by bolts, a chuck (8) is provided inside the fixing seat (7), a piston rod body (9) is fixed inside the chuck (8), and the propulsion mechanism (6) is used to propel the piston rod to move. The bottom of the propulsion mechanism (6) is installed on the top of a connecting plate (12), and both sides of the connecting plate (12) are in sliding contact with the inner side of the frame (2). The inside of the connecting plate (12) is threadedly connected to a first threaded rod (11), one end of the first threaded rod (11) is rotatably connected to the frame (2), and the other end of the first threaded rod (11) is sleeved on the outside of the output end of the first motor (10), and the first motor (10) is installed on the top of the base (1) by bolts.

2. A drilling device for machining a concentric hole of a piston rod as claimed in claim 1, characterized in that: The driving mechanism comprises a second motor (401), the second motor (401) being mounted on one side of the bracket (3) by means of screws, a second threaded rod (402) being sleeved on the outside of the output end of the second motor (401), the outside of the second threaded rod (402) being threadedly connected to the inside of the first slider (403), two first sliders (403) being provided, and the two first sliders (403) being connected to each other by means of screws.

3. The drilling device for machining a concentric hole of a piston rod according to claim 1, characterized in that: The punching mechanism comprises a third motor (404), two third motors (404) are provided, and the two third motors (404) are installed on the top of the first slider (403) by screws, a third threaded rod (405) is sleeved on the outside of the output end of the third motor (404), the outside of the third threaded rod (405) is threadedly connected to the inside of the second slider (406), a drill bit (407) is installed on one side of the second slider (406) by screws, and the drill bit (407) is provided with two specifications, one large and one small.

4. The drilling device for machining a concentric hole of a piston rod according to claim 1, characterized in that: The propulsion mechanism (6) includes a horizontal detection mechanism, a push plate (606) and an adjustment mechanism. A hole groove is provided at the bottom of the push plate (606), and the inside of the two hole grooves at the bottom of the push plate (606) is slidably connected to the two slide grooves at the top of the push seat (601). The hole groove at the bottom of the push plate (606) is T-shaped, and the shape of the hole groove at the bottom of the push plate (606) is consistent with the cross-section of the slide groove at the top of the push seat (601). The adjustment mechanism is located between the push plate (606) and the push seat (601) and is used to elastically push the piston rod body (9). The horizontal detection mechanism is installed on the top of the push plate (606), and the top of the horizontal detection mechanism is in contact with the bottom surface of the piston rod body (9).

5. A drilling device for machining a concentric hole of a piston rod as claimed in claim 4, characterized in that: The adjustment mechanism includes a slide rod (602) and a first spring (604). Two slide rods (602) are provided, and a limit block (605) is welded at one end of the two slide rods (602). The outer wall of the slide rod (602) is in sliding contact with the inside of the push seat (601). The first spring (604) is sleeved on the outside of the slide rod (602). The other end of the slide rod (602) is welded to the bottom of the push plate (606). The surface of one end of the slide rod (602) is a threaded structure, and the outside of the slide rod (602) is threadedly connected to the adjustment nut (603).

6. A drilling device for machining a concentric hole of a piston rod as claimed in claim 4, characterized in that: The horizontal detection mechanism includes a lifting plate (607) and a pressure sensor (612). Two pressure sensors (612) are provided, and the tops of the two pressure sensors (612) are in contact with the bottom of the piston rod body (9). The two pressure sensors (612) are embedded in the top of the lifting plate (607). The four ends of the lifting plate (607) are slidably connected to the vertical rod (510). The bottom of the support rod (608) is welded to the top of the push plate (606). The outside of the support rod (608) is covered with a second spring (609), and the second spring (609) is located between the lifting plate (607) and the push plate (606).

7. A drilling device for machining a concentric hole of a piston rod as claimed in claim 5, characterized in that: A threaded column (610) is welded on the top of the push plate (606), and two threaded columns (610) are provided. The two threaded columns (610) are in sliding contact with the inside of the lifting plate (607), and the outside of the threaded column (610) is threadedly connected to the adjustment ring (611), and the bottom of the adjustment ring (611) is tightly fitted with the top surface of the lifting plate (607).

8. The drilling device for machining a concentric hole of a piston rod according to claim 1, characterized in that: The filtering mechanism (5) comprises a guide groove (501), the guide groove (501) is provided at the top of one end of the push plate (606), the surface of the guide groove (501) is in a sloped structure, one end of the bottom of the guide groove (501) is in communication with the interior of the bellows (502), the outer wall of the bellows (502) is in a corrugated structure, and the other end of the bellows (502) is in communication with the interior of the filter box (503), the filter box (503) is provided with a baffle (504), and the baffle (504) The top height is lower than the top height of the water tank, and a filter screen (507) is provided at the other end of the filter box (503); the interior of the cavity below the filter screen (507) is connected to the input end of the water pump (508); the output end of the water pump (508) is connected to one end of a connecting pipe (509); the other end of the connecting pipe (509) is connected to a nozzle (511); the nozzle (511) is installed at one end of the top of the vertical pole (510); and one end of the bottom of the vertical pole (510) is welded to the top of one end of the guide groove (501).

9. A drilling device for machining a concentric hole of a piston rod as claimed in claim 88, characterized in that: An adsorption rod (505) is arranged between the adjacent baffles (504), the interior of the adsorption rod (505) is a magnet, the adsorption rod (505) is arranged vertically, and one end of the bottom of the adsorption rod (505) is threadedly connected to the bottom of the water tank, and the outside of the adsorption rod (505) is sleeved with adsorption rings (506) at equal intervals from top to bottom.

10. The drilling device for machining a concentric hole of a piston rod according to claim 1, characterized in that: Infrared transmitters (408) are installed on both side surfaces of the fixing seat (7), and infrared receivers (409) are embedded on both side surfaces of the second sliding block (406). Two groups of infrared receivers (409) are provided, which are respectively arranged on both sides of the two drill bits (407), and the infrared transmitters (408) are electrically connected to the external control terminal.

Images