Precise high-load industrial robot balance cylinder body

Abstract

The invention discloses a precise high-load industrial robot balance cylinder body, and relates to the technical field of industrial robots, the precise high-load industrial robot balance cylinder body is characterized in that the side end of the balance cylinder body is cooperatively connected with a mounting plate, a cylinder pipe is arranged in the balance cylinder body, the side end of the mounting plate is fixedly connected with an oil storage tank, the oil storage tank is matched with the cylinder pipe, and the inner wall of the oil storage tank is cooperatively connected with a filter assembly; the two ends of the driver are fixedly connected with the mounting plate and the cylinder pipe respectively, the driver is in matched connection with the oil storage tank, the piston seat is slidably connected with the inner wall of the cylinder pipe, the side end of the piston seat is fixedly connected with a piston rod, the piston seat is in matched connection with the driver, and the outer wall of the piston rod is fixedly connected with a sealing plate. Oil liquid can be stored in the oil storage tank, when the balance cylinder body is used, the oil liquid in the oil storage tank is recycled, when the oil liquid enters the oil storage tank, the filtering assembly can filter impurities and particulate matter in the oil liquid, and the impurities and the particulate matter are stored in the filtering assembly after being filtered.

Description

Technical Field

[0001] The invention relates to the technical field of industrial robots, and in particular to a balancing cylinder of a precision high-load industrial robot. Background Art

[0002] An industrial robot is a multi-joint manipulator or multi-degree-of-freedom machine device for the industrial field. It can perform work automatically and rely on its own power and control capabilities to achieve various functions. An industrial robot consists of three basic parts: the main body, the drive system and the control system. It has the characteristics of programmability, anthropomorphism, versatility and comprehensiveness.

[0003] In the prior art, industrial robots often use a balancing cylinder to balance the load. The balancing cylinder drives the piston rod to move through the internal hydraulic pressure, and the piston rod balances the load of the industrial robot. When the load of the industrial robot changes, the control system automatically adjusts the piston rod, thereby achieving the effect of balancing the precision and high-load industrial robot.

[0004] However, when the oil in the balance cylinder is used for a long time, the hydraulic system will wear out, which will cause metal particles or other tiny fragments to be generated in the hydraulic system. The aging or damage of the sealing gasket will cause contaminants to enter the oil. The impurities and particles in the oil will further cause blockage or wear of the hydraulic components, thereby affecting the pressure stability of the balance cylinder. Summary of the invention

[0005] The purpose of the present invention is to provide a precision high-load industrial robot balancing cylinder to solve the technical problem in the prior art that when the oil in the balancing cylinder is used for a long time, the hydraulic system will produce wear, which causes the hydraulic system to produce metal particles or other tiny fragments, and the aging or damage of the sealing gasket causes contaminants to enter the oil, and the impurities and particulate matter in the oil further cause blockage or wear of the hydraulic components, thereby affecting the pressure stability of the balancing cylinder.

[0006] The technical problem to be solved by the present invention can be achieved by the following technical solutions:

[0007] Precision high load industrial robot balancing cylinder, including:

[0008] A balancing cylinder, wherein the side end of the balancing cylinder is connected with a mounting plate, a cylinder tube is arranged inside the balancing cylinder, the side end of the mounting plate is fixedly connected with an oil storage tank, the oil storage tank is matched with the cylinder tube, and a filter assembly is connected with the inner wall of the oil storage tank;

[0009] A driver, both ends of which are fixedly connected to the mounting plate and the cylinder tube, respectively, and the driver is cooperatively connected to the oil storage tank;

[0010] The piston seat is slidably connected to the inner wall of the cylinder tube, the side end of the piston seat is fixedly connected to the piston rod, the piston seat is cooperatively connected to the driver, and the outer wall of the piston rod is fixedly connected to the sealing plate.

[0011] As a further solution of the present invention: oil inlet holes and oil outlet holes are respectively provided on both sides of the oil storage tank, penetrating the mounting plate and the driver, a cooler is fixedly connected to the side end of the oil storage tank, a discharge hole is provided at the bottom end of the oil storage tank, the filter assembly cooperates with the oil inlet hole, a discharge bolt is threadedly connected to the discharge hole, a sealing ring is fixedly connected to the side end of the discharge bolt, and the side end of the sealing ring is butt-connected to the oil storage tank.

[0012] As a further solution of the present invention: the filter assembly is connected with a positioning assembly, the filter assembly includes: a filter shell and an oil outlet, the filter shell is fixedly connected to the top of the oil outlet hole, the filter shell and the oil outlet hole are both fitted with the inner wall of the oil storage tank, the bottom cross-section of the filter shell is arc-shaped, a feed port is opened at the bottom end of the filter shell, the feed port is matched with the inside of the storage box, and positioning holes are respectively opened longitudinally at both ends of the storage box.

[0013] As a further solution of the present invention: the positioning assembly includes: a positioning seat and a positioning column, the positioning seat is fixedly connected to the inner wall of the oil storage tank, the bottom end of the positioning column is fixedly connected to the positioning seat, and the positioning column is slidably connected to the inner wall of the positioning hole and abuts against each other.

[0014] As a further solution of the present invention: the outer wall of the balancing cylinder body is supported and connected with a mounting frame, the side end of the balancing cylinder body penetrates the mounting plate to open a plurality of mounting holes, the bottom end of the mounting frame is fixedly connected with a mounting seat, and the inner wall of the mounting hole is threadedly connected with a mounting bolt.

[0015] As a further solution of the present invention: a plurality of connecting plates are axially fixedly connected to the outer wall of the cylinder tube, and the connecting plates are cooperatively connected with buffer pads, and the buffer pads are fixedly connected to the inner wall of the balancing cylinder body.

[0016] As a further solution of the present invention: a limiting groove is longitudinally provided on the connecting plate, a limiting plate is clamped in the limiting groove and connected to the limiting plate and is slidably connected to the limiting plate, a baffle is fixedly connected to the side end of the limiting plate, the baffle is abutted against the connecting plate, a limiting hole is provided inside the baffle plate and passes through the connecting plate, and a limiting bolt is threadedly connected to the limiting hole.

[0017] As a further solution of the present invention: positioning plates are fixedly connected at both ends of the piston seat, positioning grooves are opened on both sides of the inner wall of the cylinder tube, the positioning plates are slidably connected to the inner walls of the positioning grooves, and the sealing plate is slidably connected to the inner wall of the cylinder tube.

[0018] Beneficial effects of the present invention:

[0019] 1. Oil can be stored in the oil storage tank. When the balance cylinder is in use, the oil in the oil storage tank is circulated. When the oil enters the oil storage tank, the filter component can filter the impurities and particulate matter in the oil. The impurities and particulate matter are stored in the filter component after filtering.

[0020] 2. When the balancing cylinder is in use, the driver is running, and the driver passes the oil in the oil storage tank into the cylinder tube, and drives the piston seat to move, thereby moving the piston rod. The piston seat moves the piston rod according to the load borne by the precision high-load industrial robot, thereby achieving the effect of balancing the industrial robot, wherein the piston seat achieves a preliminary seal of the oil by sliding along the inner wall of the cylinder tube, wherein the piston rod moves with the sealing plate, and the sealing plate achieves a secondary seal of the oil by sliding along the inner wall of the cylinder tube, thereby avoiding the damage of the piston seat and causing particles in the air to enter the oil. A sensor can be set at the end of the piston seat close to the sealing plate. When the oil penetrates between the piston seat and the cylinder tube, the detector detects the oil and alarms, thereby promptly reminding the staff to perform maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

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

[0023] Figure 2 It is a schematic diagram of the cylinder tube structure of the present invention;

[0024] Figure 3 It is a front view of the cylinder tube structure of the present invention;

[0025] Figure 4 It is the AA cross-sectional view of the overall structure of the present invention;

[0026] Figure 5 It is a cross-sectional view of the overall structure BB of the present invention;

[0027] Figure 6 For the present invention Figure 4 A schematic diagram of the structure at A;

[0028] Figure 7 It is a schematic diagram of the structure of the filter assembly of the present invention;

[0029] Figure 8 It is a right view of the filter assembly structure of the present invention;

[0030] Fig. 9 It is a cross-sectional view of the filter assembly structure CC of the present invention;

[0031] Fig.10 It is a schematic diagram of the connecting plate structure of the present invention;

[0032] Fig.11 It is a schematic diagram of the structure of the buffer pad of the present invention;

[0033] Fig.12 It is a schematic diagram of the piston seat structure of the present invention.

[0034] In the figure: 1. balancing cylinder body; 2. mounting plate; 3. mounting bolts; 4. oil storage tank; 5. mounting frame; 6. mounting hole; 7. mounting seat; 8. cooler; 9. buffer pad; 10. cylinder tube; 11. driver; 13. filter shell; 14. oil inlet hole; 15. oil outlet hole; 16. piston seat; 17. sealing plate; 18. piston rod; 19. discharge bolt; 20. discharge hole; 21. connecting plate; 22. limiting bolt; 23. limiting hole; 24. baffle; 25. storage box; 26. feed port; 27. positioning seat; 28. positioning column; 29. ​​positioning hole; 30. limiting groove; 31. limiting plate; 32. positioning plate; 33. positioning groove; 34. sealing ring. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] like Figure 1-Figure 12 As shown, the precision high-load industrial robot balance cylinder includes: a balance cylinder 1, a driver 11 and a piston seat 16,

[0037] The side end of the balancing cylinder 1 is connected with a mounting plate 2, a cylinder tube 10 is arranged inside the balancing cylinder 1, and an oil storage tank 4 is fixedly connected to the side end of the mounting plate 2. The oil storage tank 4 cooperates with the cylinder tube 10, and a filter assembly is connected to the inner wall of the oil storage tank 4. Oil can be stored in the oil storage tank 4. When the balancing cylinder 1 is in use, the oil in the oil storage tank 4 is circulated. When the oil enters the oil storage tank 4, the filter assembly can filter impurities and particulate matter in the oil, and the impurities and particulate matter are stored in the filter assembly after filtering.

[0038] The two ends of the driver 11 are fixedly connected to the mounting plate 2 and the cylinder tube 10 respectively, the driver 11 is connected with the oil storage tank 4, the piston seat 16 is slidably connected to the inner wall of the cylinder tube 10, the side end of the piston seat 16 is fixedly connected with the piston rod 18, the piston seat 16 is connected with the driver 11, and the outer wall of the piston rod 18 is fixedly connected with the sealing plate 17. When the balancing cylinder 1 is in use, the driver 11 is running, and the driver 11 passes the oil in the oil storage tank 4 into the cylinder tube 10, and moves the piston rod 18 by driving the piston seat 16 to move. The piston seat 16 moves the piston rod 18 according to the load borne by the precision high-load industrial robot, so as to achieve the desired effect. The effect of balancing the industrial robot is achieved, wherein the piston seat 16 achieves preliminary sealing of the oil by sliding along the inner wall of the cylinder tube 10, wherein the piston rod 18 moves with the sealing plate 17, and the sealing plate 17 slides along the inner wall of the cylinder tube 10, thereby achieving secondary sealing of the oil, thereby preventing the piston seat 16 from being damaged and causing particulate matter in the air to enter the oil. A sensor can be provided at one end of the piston seat 16 close to the sealing plate 17. When the oil penetrates between the piston seat 16 and the cylinder tube 10, the detector detects the oil and alarms, thereby promptly reminding the staff to perform maintenance.

[0039] In some specific implementation schemes, an oil inlet hole 14 and an oil outlet hole 15 are respectively provided on both sides of the oil storage tank 4, penetrating the mounting plate 2 and the driver 11. The side end of the oil storage tank 4 is fixedly connected with a cooler 8, and the bottom end of the oil storage tank 4 is provided with a discharge hole 20. The filter component cooperates with the oil inlet hole 14, and the discharge hole 20 is internally threadedly connected with a discharge bolt 19. The side end of the discharge bolt 19 is fixedly connected with a sealing ring 34, and the side end of the sealing ring 34 is abutted against the oil storage tank 4. When the driver 11 is running, the driver 11 can extract the oil in the oil storage tank 4 through the oil outlet hole 15, and inject the oil in the cylinder tube 10 into the oil storage tank 4 through the oil inlet hole 14, thereby realizing the circulation of the oil. When the oil enters the oil storage tank 4 through the oil inlet hole 14, the oil is filtered out of impurities and particulate matter through the filter component. When the oil in the oil tank 4 is replaced, the discharge bolt 19 is opened, and the driver 11 draws out the oil in the cylinder tube 10 and injects it into the oil tank 4. The oil in the oil tank 4 flows out through the discharge hole 20. When new oil is injected into the oil tank 4, the discharge bolt 19 is rotated and installed in the discharge hole 20 through a threaded connection. The sealing ring 34 fixed on the discharge bolt 19 is deformed by being pressed against the oil tank 4, thereby sealing the connection between the discharge bolt 19 and the discharge hole 20. It should be noted that the cooler 8 has the effect of cooling the oil. When the piston seat 16 generates heat by friction with the inner wall of the cylinder tube 10 for a long time, the oil eliminates the heat through the cooling of the cooler 8, thereby achieving the effect of cooling the cylinder tube 10 and the piston seat 16.

[0040] In some specific embodiments, the filter assembly is connected with a positioning assembly, and the filter assembly includes: a filter shell 13 and an oil outlet 15, the filter shell 13 is fixedly connected to the top of the oil outlet hole 15, the filter shell 13 and the oil outlet hole 15 are both fitted with the inner wall of the oil storage box 4, the bottom cross-section of the filter shell 13 is arc-shaped, and a feed port 26 is opened at the bottom of the filter shell 13, the feed port 26 is matched with the inside of the storage box 25, and positioning holes 29 are respectively opened longitudinally at both ends of the storage box 25. When the oil passes through the filter assembly, the oil passes through the filter shell 13, and the filter shell 13 is provided with a filter hole. The filter shell 13 blocks impurities and particulate matter in the oil. The shape of the filter shell 13 can make the impurities and particulate matter flow downward along the inner wall of the filter shell 13, and the impurities and particulate matter flow into the storage box 25 along the feed port 26, and the impurities and particulate matter are stored in the storage box 25, wherein the storage box 25 is provided with a filter hole to prevent the oil from accumulating in the storage box 25.

[0041] In some specific embodiments, the positioning assembly includes: a positioning seat 27 and a positioning column 28, the positioning seat 27 is fixedly connected to the inner wall of the oil storage tank 4, the bottom end of the positioning column 28 is fixedly connected to the positioning seat 27, the positioning column 28 is slidably connected to the inner wall of the positioning hole 29 and abuts against each other, when the filter assembly cleans the stored impurities and particulate matter, the storage box 25 is moved vertically upward from the positioning column 28, the positioning column 28 and the inner wall of the discharge bolt 19 abut to provide positioning support for the storage box 25 and the filter shell 13, and the positioning seat 27 provides support for the storage box 25, thereby ensuring that the filter assembly can be stably placed on the oil storage tank 4.

[0042] In some specific implementation schemes, the outer wall of the balancing cylinder body 1 is supported and connected with a mounting frame 5, a plurality of mounting holes 6 are opened through the mounting plate 2 at the side end of the balancing cylinder body 1, a mounting seat 7 is fixedly connected to the bottom end of the mounting frame 5, and a mounting bolt 3 is threadedly connected to the inner wall of the mounting hole 6. When the oil storage tank 4 is installed on the balancing cylinder body 1, the balancing cylinder body 1 is placed on the mounting frame 5, and the balancing cylinder body 1 is supported and supported by the mounting frame 5, so that the balancing cylinder body 1 is fixed on the mounting seat 7, the mounting plate 2 and the balancing cylinder body 1 are fitted, and then the mounting bolt 3 is rotated and installed in the mounting hole 6 through a threaded connection, and the mounting bolt 3 fixes the mounting plate 2 on the balancing cylinder body 1, so that the mounting plate 2 installs the oil storage tank 4 and the driver 11 on the balancing cylinder body 1.

[0043] In some specific embodiments, a plurality of connecting plates 21 are axially fixedly connected to the outer wall of the cylinder tube 10, and the connecting plates 21 are cooperatively connected with buffer pads 9, and the buffer pads 9 are fixedly connected to the inner wall of the balancing cylinder body 1. When the cylinder tube 10 is inserted into the balancing cylinder body 1, the connecting plates 21 fixed to the outer wall of the cylinder tube 10 slide along the buffer pads 9, wherein the buffer pads 9 have plasticity, and the vibration generated by the cylinder tube 10 during use can be buffered by the buffer pads 9, thereby avoiding vibration of the balancing cylinder body 1.

[0044] In some specific embodiments, the connection plate 21 is provided with a limit groove 30 in the longitudinal direction, the limit groove 30 is provided with a limit plate 31 and is slidably connected to the limit plate 31, the side end of the limit plate 31 is fixedly connected with a baffle plate 24, the baffle plate 24 is abutted and connected with the connection plate 21, and a limit hole 23 is provided inside the baffle plate 24 and penetrates the connection plate 21, and the limit bolt 22 is threadedly connected in the limit hole 23. The connection plate 21 is provided with a limit groove 30 to slide along the limit plate 31, and the clamping connection between the limit groove 30 and the limit plate 31 provides a limit support for the cylinder tube 10, further ensuring the stability of the cylinder tube 10, and when the connection plate 21 and the baffle plate 24 are abutted, the limit bolt 22 is rotated and threadedly connected in the limit hole 23, and the connection plate 21 is fixed on the baffle plate 24, so that the connection plate 21 and the buffer pad 9 are connected together.

[0045] In some specific implementation schemes, positioning plates 32 are fixedly connected at both ends of the piston seat 16, and positioning grooves 33 are respectively opened on both sides of the inner wall of the cylinder tube 10. The positioning plate 32 is slidably connected to the inner wall of the positioning groove 33, and the sealing plate 17 is slidably connected to the inner wall of the cylinder tube 10. When the oil pushes the piston seat 16 to move, the piston seat 16 slides along the positioning groove 33 with the positioning plate 32. The positioning plate 32 and the inner wall of the positioning groove 33 support the piston seat 16 to provide a limiting support, thereby preventing the piston seat 16 from rotating when the inner wall of the cylinder tube 10 moves, thereby ensuring the stability of the operation of the piston seat 16.

[0046] Several embodiments of the present invention are described in detail above, but the embodiments of the present invention are not limited thereto and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. Precision high load industrial robot balance cylinder, characterized by: include: A balancing cylinder (1), wherein the side end of the balancing cylinder (1) is cooperatively connected to a mounting plate (2), a cylinder tube (10) is provided inside the balancing cylinder (1), the side end of the mounting plate (2) is fixedly connected to an oil storage tank (4), the oil storage tank (4) cooperates with the cylinder tube (10), and a filter assembly is cooperatively connected to the inner wall of the oil storage tank (4); A driver (11), wherein two ends of the driver (11) are respectively fixedly connected to the mounting plate (2) and the cylinder tube (10), and the driver (11) is cooperatively connected to the oil storage tank (4); A piston seat (16) is slidably connected to the inner wall of the cylinder tube (10), a piston rod (18) is fixedly connected to the side end of the piston seat (16), the piston seat (16) is cooperatively connected to the driver (11), and a sealing plate (17) is fixedly connected to the outer wall of the piston rod (18).

2. The precision high-load industrial robot balancing cylinder according to claim 1 is characterized in that: The oil storage tank (4) is provided with an oil inlet hole (14) and an oil outlet hole (15) on both sides respectively penetrating the mounting plate (2) and the driver (11); a cooler (8) is fixedly connected to the side end of the oil storage tank (4); a discharge hole (20) is provided at the bottom end of the oil storage tank (4); the filter assembly cooperates with the oil inlet hole (14); a discharge bolt (19) is internally threadedly connected to the discharge hole (20); a sealing ring (34) is fixedly connected to the side end of the discharge bolt (19); and the side end of the sealing ring (34) is abutted against the oil storage tank (4).

3. The precision high-load industrial robot balancing cylinder according to claim 2 is characterized in that: The filter assembly is connected with a positioning assembly, and the filter assembly comprises: a filter shell (13) and an oil outlet hole (15); the filter shell (13) is fixedly connected to the top of the oil outlet hole (15); the filter shell (13) and the oil outlet hole (15) are both in contact with the inner wall of the oil storage box (4); the bottom cross-section of the filter shell (13) is arc-shaped; a feed port (26) is provided at the bottom end of the filter shell (13); the feed port (26) is matched with the inside of the storage box (25); and positioning holes (29) are respectively provided longitudinally at both ends of the storage box (25).

4. The precision high-load industrial robot balancing cylinder according to claim 3 is characterized in that: The positioning assembly comprises: a positioning seat (27) and a positioning column (28); the positioning seat (27) is fixedly connected to the inner wall of the oil storage tank (4); the bottom end of the positioning column (28) is fixedly connected to the positioning seat (27); the positioning column (28) is slidably connected to the inner wall of the positioning hole (29) and abuts against each other.

5. The precision high-load industrial robot balancing cylinder according to claim 1, characterized in that: The outer wall of the balancing cylinder body (1) is supported and connected with a mounting frame (5); a plurality of mounting holes (6) are formed through the mounting plate (2) at the side end of the balancing cylinder body (1); a mounting seat (7) is fixedly connected to the bottom end of the mounting frame (5); and mounting bolts (3) are threadedly connected to the inner wall of the mounting hole (6).

6. The precision high-load industrial robot balancing cylinder according to claim 1, characterized in that: The outer wall of the cylinder tube (10) is axially fixedly connected with a plurality of connecting plates (21), the connecting plates (21) are cooperatively connected with buffer pads (9), and the buffer pads (9) are fixedly connected to the inner wall of the balancing cylinder body (1).

7. The high-precision and high-load industrial robot balancing cylinder according to claim 6, characterized in that: The connection plate (21) is longitudinally provided with a limiting groove (30), the limiting groove (30) is provided with a limiting plate (31) connected thereto and slidably connected thereto, the side end of the limiting plate (31) is fixedly connected with a baffle plate (24), the baffle plate (24) is abuttingly connected to the connection plate (21), a limiting hole (23) is provided inside the baffle plate (24) and penetrates through the connection plate (21), and the limiting hole (23) is internally threadedly connected to a limiting bolt (22).

8. The high-precision and high-load industrial robot balancing cylinder according to claim 1, characterized in that: Positioning plates (32) are fixedly connected to both ends of the piston seat (16), positioning grooves (33) are respectively provided on both sides of the inner wall of the cylinder tube (10), the positioning plates (32) are slidably connected to the inner walls of the positioning grooves (33), and the sealing plate (17) is slidably connected to the inner wall of the cylinder tube (10).

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