Piston rod heat treatment device

Abstract

The present invention is applicable to the technical field of piston rod heat treatment, and provides a piston rod heat treatment device, comprising an outer cylinder member and an inner cylinder member rotatably arranged in the outer cylinder member; the outer cylinder member comprises a supporting cylinder; a normalizing chamber, a precooling chamber, a water cooling chamber, a tempering chamber, a taking-and-putting chamber and a preheating chamber are formed in sequence between the supporting cylinder and the inner cylinder member; the inner cylinder member comprises a rotating cylinder rotatably arranged on the supporting cylinder; a fixed cylinder is coaxially fixed to the inner wall of the rotating cylinder; six groups of heat insulation plates are evenly fixed between the fixed cylinder and the inner wall of the rotating cylinder; a piston rod is slidably arranged between the coaxial lower placement groove and the upper placement groove. The device controls the rotation of the inner barrel member, and drives the piston rod placed in the inner cylinder member to pass through the normalizing chamber, the precooling chamber, the water cooling chamber, the tempering chamber, the taking-and-putting chamber and the preheating chamber in sequence, so as to realize the continuous normalizing, water cooling and tempering processes, avoid complicated taking and putting, optimize the heat treatment process, improve the work efficiency of the heat treatment, and at the same time improve the safety of operation.

Description

Technical Field

[0001] The present invention relates to the technical field of piston rod heat treatment, and more specifically, to a piston rod heat treatment device. Background Art

[0002] The piston rod is a connecting component that supports the piston to do work. It is mostly used in oil cylinders and cylinder motion actuators. It is a moving component that moves frequently and has high technical requirements. At present, when the piston rod is heat treated, it is generally hoisted and moved. The hoisted piston rod is hoisted into a pit-type resistance furnace or a suspended continuous resistance heating furnace for heating, and then withdrawn for circulating water cooling. When the piston rod is cooled to 100°C, it is placed in a pit furnace for tempering.

[0003] The prior art process for heat treatment of piston rods is relatively complicated and requires reciprocating lifting of the piston rods during the treatment process, which reduces the working efficiency of heat treatment of the piston rods. At the same time, there are great safety hazards during the lifting of the piston rods. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a piston rod heat treatment device, which controls the rotation of the inner barrel part to drive the piston rod placed in the inner barrel part to pass through the normalizing chamber, precooling chamber, water cooling chamber, tempering chamber, picking and placing chamber and preheating chamber in sequence, thereby realizing the continuous normalizing, water cooling and tempering processes, avoiding cumbersome picking and placing, optimizing the heat treatment process, improving the work efficiency of the heat treatment, and at the same time improving the safety of operation.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A piston rod heat treatment device comprises an outer cylinder member and an inner cylinder member rotatably arranged in the outer cylinder member; the outer cylinder member comprises a supporting cylinder; a normalizing chamber, a precooling chamber, a water-cooling chamber, a tempering chamber, a taking-and-putting chamber and a preheating chamber are formed in a circular array in sequence between the supporting cylinder and the inner cylinder member; the inner cylinder member comprises a rotating cylinder rotatably arranged on the supporting cylinder; a fixed cylinder is coaxially fixed to the inner wall of the rotating cylinder; six groups of heat insulation plates are evenly fixed between the fixed cylinder and the inner wall of the rotating cylinder; connecting openings are provided on the circumferential side surface of the rotating cylinder between two adjacent heat insulation plates; a plurality of lower placement grooves are provided on the circumferential side surface of the fixed cylinder near its two ends, and an avoidance groove is provided on the circumferential side surface between the corresponding two lower placement grooves; arc plates are fixed between adjacent heat insulation plates; a plurality of upper placement grooves coaxially arranged with the corresponding lower placement grooves are evenly provided on the inner circumferential side surface of the arc plate; a piston rod is slidably arranged between the coaxial lower placement groove and the upper placement groove.

[0007] The present invention is further configured as follows: a first resistance heating box interconnected with the normalizing chamber is arranged on the outer peripheral side of the support tube; an exhaust pipe and an air outlet pipe interconnected with the precooling chamber are arranged on the outer peripheral side of the support tube in sequence; a water inlet pipe and a water outlet pipe interconnected with the water cooling chamber are arranged on the outer peripheral side of the support tube in sequence; a second resistance heating box interconnected with the tempering chamber is arranged on the outer peripheral side of the support tube; an air inlet pipe and an exhaust pipe interconnected with the preheating chamber are arranged on the outer peripheral side of the support tube in sequence.

[0008] The present invention is further configured as follows: an exhaust fan is fixedly installed at the end of the exhaust pipe; an air supply pipe is fixedly connected between the air outlet pipe and the air inlet pipe; the water inlet pipe is connected to an external cold water pipe; the water outlet pipe is connected to an external water supply pipe; and support legs are symmetrically fixed on the circumferential side of the support tube.

[0009] The present invention is further configured as follows: a rotating opening is provided at the end of the support tube; an annular groove is provided on the inner wall of the rotating opening; a connecting column is fixed to the end of the rotating tube to rotate with the rotating opening; an annular rail is provided on the peripheral side of the connecting column to rotate with the annular groove; a gear ring is fixed to the end of the connecting column; a servo motor is fixedly installed on the end of the support tube; and a gear meshing with the gear ring is fixed to the output end of the servo motor.

[0010] The present invention is further configured as follows: an inner wall of each of the connecting ports is provided with an arc-shaped receiving groove; an arc-shaped connecting groove is provided between each of the adjacent arc-shaped receiving grooves; a baffle member is slidably arranged between each of the arc-shaped receiving grooves; the baffle member includes a plurality of arc-shaped baffles slidably arranged in the corresponding arc-shaped receiving grooves; a plurality of arc-shaped springs are fixedly connected between each of the arc-shaped baffles and the inner bottom surface of the corresponding arc-shaped receiving groove; and arc-shaped rods slidably arranged in the arc-shaped connecting grooves are symmetrically fixed between adjacent arc-shaped baffles.

[0011] The present invention is further configured as follows: a plurality of spherical grooves are evenly provided on the outer peripheral side of the arc-shaped baffle; a fixing plate connected to the pick-and-place cavity is provided on the outer peripheral side of the support tube; a plurality of through holes are evenly provided on the surface of the fixing plate; a plurality of sliding rods are symmetrically fixed on the surface of the fixing plate; a mounting plate is fixed between the ends of each of the sliding rods; and a lifting member is slidably arranged between the two sliding rods.

[0012] The present invention is further configured as follows: the lifting member includes a lifting plate; a plurality of sliding holes symmetrically opened on the surface of the lifting plate and slidingly matched with corresponding sliding rods; a plurality of return springs sleeved on the corresponding sliding rods are fixed between the lifting plate and the mounting plate; an iron block is fixed on the surface of the lifting plate; an electromagnetic suction cup is fixedly installed on the bottom surface of the mounting plate; a plurality of connecting rods are evenly fixed on the bottom surface of the lifting plate; a ball head adapted to the corresponding spherical groove is fixed on the end of the connecting rod.

[0013] The present invention is further configured as follows: a sealing groove is provided at the end of the rotating cylinder; a sealing ring is inserted in the sealing groove; an annular sealing plate is fixed to the side of the sealing ring; a plurality of inlets and outlets are evenly provided on the side of the annular sealing plate; the annular sealing plate is fixedly mounted on the end of the fixed cylinder by fastening bolts; a threaded column is screwed in each of the inlets and outlets; and a handle is fixed to the end of the threaded column.

[0014] The present invention is further configured as follows: an electric push rod is fixedly installed on the circumferential side surface of the support tube near the fixed plate, and a fixing frame is fixed on the circumferential side surface; a plurality of arc-shaped support tubes compatible with the corresponding inlets and outlets are fixed on the side surface of the fixing frame; a pick-and-place component is fixed on the telescopic end of the electric push rod; the pick-and-place component includes a mounting frame fixed on the telescopic end of the electric push rod; a plurality of adsorption tubes slidingly matched with the corresponding arc-shaped support tubes are fixed on the mounting frame; one end of the adsorption tube is sealed, and a retaining ring is fixed on its inner wall.

[0015] The present invention is further configured as follows: a connecting tube is provided between adjacent adsorption tubes; an ear tube is provided on one of the connecting tubes; a connecting tube is provided at the end of one of the adsorption tubes; a controller and an air pump are installed on the mounting frame in sequence; a hose is connected between the air suction end of the air pump and the ear tube; an electromagnetic valve is provided on the connecting tube; the output end of the controller is electrically connected to the servo motor, the electromagnetic suction cup, the electric push rod, the first resistance heating box, the second resistance heating box, the exhaust fan and the air pump respectively.

[0016] The advantages of the present invention are:

[0017] 1. The present invention inserts one end of each group of piston rods into the corresponding adsorption tube, controls and starts the vacuum pump, and draws out the air between the piston rod and the adsorption tube through the ear tube to form a negative pressure, so that the end of the piston rod is adsorbed and pressed against the retaining ring, and controls and starts the electric push rod to pass the piston rod through the corresponding inlet and outlet, insert the piston rod between the lower placement groove and the upper placement groove, and screw the corresponding threaded column into the inlet and outlet to realize the delivery of the piston rod, which is convenient for taking out the piston rod after heat treatment, replaces the transmission hoisting method, and improves the safety of operation.

[0018] 2. The present invention controls the rotation of the inner barrel part to drive the piston rod placed in the inner barrel part to pass through the normalizing chamber, precooling chamber, water cooling chamber, tempering chamber, taking and placing chamber and preheating chamber in sequence, thereby realizing the continuous normalizing, water cooling and tempering processes, avoiding cumbersome taking and placing, optimizing the heat treatment process, improving the work efficiency of the heat treatment, and further improving the safety of the operation.

[0019] 3. After a group of piston rods have completed normalizing, the present invention controls the inner cylinder to rotate, driving the normalized piston rods to enter the precooling chamber, and controls the exhaust fan to start to draw external cold air into the precooling box to precool the piston rods in the precooling chamber, thereby avoiding excessive temperature difference in subsequent water cooling and affecting the quality. The hot air after heat exchange enters the preheating box through the air outlet pipe to preheat the piston rods in the preheating chamber, thereby preventing the temperature difference from changing too much during subsequent normalizing heating, thereby improving the quality of heat treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a piston rod heat treatment device of the present invention.

[0021] Figure 2 For the present invention Figure 1 Schematic diagram of the structure from a frontal perspective.

[0022] Figure 3 It is a schematic structural diagram of the outer cylinder member of the present invention.

[0023] Figure 4 It is a schematic structural diagram of the outer cylinder of the present invention from another angle.

[0024] Figure 5 It is a structural schematic diagram of the outer cylinder of the present invention from a rearward viewing angle.

[0025] Figure 6 It is a schematic structural diagram of the inner cylinder member of the present invention.

[0026] Figure 7 It is a schematic structural diagram of the inner cylinder member of the present invention from a right side perspective.

[0027] Figure 8 It is a schematic structural diagram of the baffle member of the present invention.

[0028] Fig. 9 It is a schematic structural diagram of the annular sealing plate of the present invention.

[0029] Fig.10 It is a schematic structural diagram of the threaded column of the present invention.

[0030] Fig.11 For the present invention Figure 6 A magnified image of area A.

[0031] Fig.12 It is a structural schematic diagram of the lifting member of the present invention.

[0032] Fig.13 It is a schematic structural diagram of the pick-and-place component of the present invention.

[0033] Fig.14 It is a schematic structural diagram of the pick-and-place member of the present invention from another angle.

[0034] Fig.15 It is a schematic diagram of the structure of the inner cylinder of the present invention in a sealed state.

[0035] Fig.16 It is a schematic diagram of the structure of the inner cylinder of the present invention when it is in an open state.

[0036] In the figure: 1. outer cylinder; 2. inner cylinder; 3. support cylinder; 4. normalizing chamber; 5. precooling chamber; 6. water cooling chamber; 7. tempering chamber; 8. taking and placing chamber; 9. preheating chamber; 10. rotating cylinder; 11. fixed cylinder; 12. heat insulation board; 13. connecting port; 14. lower placement groove; 15. avoidance groove; 16. arc plate; 17. upper placement groove; 18. piston rod; 19. first resistance heating box; 20. exhaust pipe; 21. air outlet pipe; 22. water inlet pipe; 23. water outlet pipe; 24. second resistance heating box; 25. air inlet pipe; 26. exhaust pipe; 27. exhaust fan; 28. support leg; 29. ​​rotating port; 30. annular groove; 31. connecting column; 32. annular rail; 33. gear ring; 34. servo motor; 35. gear; 36. arc storage groove ; 37. arc-shaped connecting groove; 38. baffle member; 39. arc-shaped baffle; 40. arc-shaped spring; 41. arc-shaped rod; 42. spherical groove; 43. fixed plate; 44. through hole; 45. slide rod; 46. mounting plate; 47. lifting member; 48. lifting plate; 49. slide hole; 50. reset spring; 51. iron block; 52. electromagnetic suction cup; 53. connecting rod; 54. ball head; 55. sealing groove; 56. sealing ring; 57. inlet and outlet; 58. threaded column; 59. handle; 60. electric push rod; 61. fixing frame; 62. arc-shaped support tube; 63. pick-up and place member; 64. mounting frame; 65. adsorption tube; 66. baffle ring; 67. connecting tube; 68. ear tube; 69. connecting tube; 70. controller; 71. vacuum pump; 72. annular sealing plate. DETAILED DESCRIPTION

[0037] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0038] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0039] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0040] Embodiment 1

[0041] See also Figure 1-16 , the present invention provides the following technical solutions:

[0042] A piston rod heat treatment device, specifically, comprises an outer cylinder 1 and an inner cylinder 2 rotatably arranged in the outer cylinder 1; the outer cylinder 1 comprises a support cylinder 3; a normalizing chamber 4, a precooling chamber 5, a water cooling chamber 6, a tempering chamber 7, a taking-and-putting chamber 8 and a preheating chamber 9 are sequentially formed in a circumferential array between the support cylinder 3 and the inner cylinder 2; the inner cylinder 2 comprises a rotating cylinder 10 rotatably arranged on the support cylinder 3; a fixed cylinder 11 is coaxially fixed to the inner wall of the rotating cylinder 10; six groups of heat insulation plates 1 are evenly fixed between the fixed cylinder 11 and the inner wall of the rotating cylinder 10 2; the rotating cylinder 10 is provided with a connecting port 13 on the circumferential side between two adjacent heat insulation plates 12; the fixed cylinder 11 is provided with a plurality of lower placement grooves 14 on the circumferential side near both ends thereof, and a avoiding groove 15 is provided on the circumferential side between the two corresponding lower placement grooves 14; an arc-shaped plate 16 is fixed between the adjacent heat insulation plates 12; a plurality of upper placement grooves 17 coaxially arranged with the corresponding lower placement grooves 14 are evenly provided on the inner circumferential side of the arc-shaped plate 16; a piston rod 18 is slidably arranged between the coaxial lower placement groove 14 and the upper placement groove 17.

[0043] The working principle of the first embodiment is as follows: by controlling the rotation of the inner barrel part 2, the piston rod 18 placed in the inner barrel part 2 is driven to pass through the normalizing chamber 4, the precooling chamber 5, the water cooling chamber 6, the tempering chamber 7, the picking and placing chamber 8 and the preheating chamber 9 in sequence, so as to realize the continuous normalizing, water cooling and tempering processes, avoid the cumbersome picking and placing process, optimize the heat treatment process, improve the work efficiency of the heat treatment, and at the same time improve the safety of the operation.

[0044] Embodiment 2

[0045] See also Figure 1-16, the second embodiment of the present invention is improved as follows on the basis of the first embodiment. Specifically, a first resistance heating box 19 interconnected with the normalizing chamber 4 is provided on the outer peripheral side of the support tube 3; an exhaust pipe 20 and an air outlet pipe 21 interconnected with the precooling chamber 5 are provided on the outer peripheral side of the support tube 3 in sequence; an inlet pipe 22 and an outlet pipe 23 interconnected with the water cooling chamber 6 are provided on the outer peripheral side of the support tube 3 in sequence; a second resistance heating box 24 interconnected with the tempering chamber 7 is provided on the outer peripheral side of the support tube 3; an inlet pipe 25 and an exhaust pipe 26 interconnected with the preheating chamber 9 are provided on the outer peripheral side of the support tube 3 in sequence; an exhaust fan 27 is fixedly installed at the end of the exhaust pipe 20; the outlet pipe 21 and the inlet pipe An air delivery pipe is fixedly connected between the two ends of the support tube 25; the water inlet pipe 22 is connected to the external cold water pipe; the water outlet pipe 23 is connected to the external water delivery pipe; support legs 28 are symmetrically fixed on the sides of the support tube 3; a rotating port 29 is provided at the end of the support tube 3; an annular groove 30 is provided on the inner wall of the rotating port 29; a connecting column 31 is fixed on the end of the rotating tube 10 to rotate with the rotating port 29; an annular rail 32 is provided on the side of the connecting column 31 to rotate with the annular groove 30; a gear ring 33 is fixed on the end of the connecting column 31; a servo motor 34 is fixedly installed on the end of the support tube 3; a gear 35 meshing with the gear ring 33 is fixed on the output end of the servo motor 34; each connecting port 13 is provided with a gear 35 meshing with the gear ring 33 on the inner wall Arc-shaped receiving grooves 36; arc-shaped connecting grooves 37 are provided between each adjacent arc-shaped receiving grooves 36; baffle members 38 are slidably provided between each arc-shaped receiving groove 36; baffle members 38 include a plurality of arc-shaped baffles 39 slidably provided in the corresponding arc-shaped receiving grooves 36; a plurality of arc-shaped springs 40 are fixedly connected between each arc-shaped baffle 39 and the inner bottom surface of the corresponding arc-shaped receiving groove 36; arc-shaped rods 41 slidably provided in the arc-shaped connecting grooves 37 are symmetrically fixed between adjacent arc-shaped baffles 39; a plurality of spherical grooves 42 are uniformly provided on the outer peripheral side of the arc-shaped baffle 39; a fixing plate 43 communicating with the taking-and-putting cavity 8 is provided on the outer peripheral side of the support tube 3; a plurality of through-holes are uniformly provided on the surface of the fixing plate 43 Through hole 44; a number of slide bars 45 are symmetrically fixed on the surface of the fixing plate 43; a mounting plate 46 is fixed between the ends of each slide bar 45; a lifting member 47 is slidably arranged between the two slide bars 45; the lifting member 47 includes a lifting plate 48; a number of sliding holes 49 slidably matched with the corresponding slide bars 45 are symmetrically opened on the surface of the lifting plate 48; a number of return springs 50 sleeved on the corresponding slide bars 45 are fixed between the lifting plate 48 and the mounting plate 46; an iron block 51 is fixed on the surface of the lifting plate 48; an electromagnetic suction cup 52 is fixedly installed on the bottom surface of the mounting plate 46; a number of connecting rods 53 are evenly fixed on the bottom surface of the lifting plate 48; a ball head 54 adapted to the corresponding spherical groove 42 is fixed at the end of the connecting rod 53.

[0046] The working principle of the second embodiment of the present invention is as follows: in the initial state, the arc baffle 39 is driven to rotate clockwise along the receiving groove 36 until it is pressed against the connecting port 13 under the elastic force of the corresponding arc spring 40, thereby realizing the synchronous closure of each group of connecting ports 13; in the initial state, the electromagnetic suction cup 52 loses power, and the lifting plate 48 is driven to descend along the slide rod 45 under the elastic force of the reset spring 50, so that the connecting rod 53 together with the corresponding ball head 54 presses against the outer peripheral side surface of the rotating cylinder 10 through the corresponding through hole 44.

[0047] When the rotating cylinder 10 drives the arc baffle 39 to rotate synchronously, each group of ball heads abuts against the outer peripheral side surface of the rotating cylinder 10. When the spherical groove 42 on the arc baffle 39 rotates to just below the corresponding ball head 54, the ball head 54 is driven to be inserted into the corresponding spherical groove 42 under the elastic force of the reset spring 50, thereby limiting each group of arc baffles 39. At this time, the rotating cylinder 10 continues to rotate, while the arc baffle 39 remains stationary, thereby realizing the synchronous opening of each group of connecting ports 13.

[0048] The first resistance heating chamber 19 is controlled to start, so that the temperature in the normalizing chamber 4 rises to the normalizing heating temperature, and each group of piston rods 18 in the normalizing chamber 4 is heated; when each group of piston rods 18 in the normalizing chamber 4 completes the normalizing heating, the electromagnetic suction cup 52 is controlled to be electrically attracted to the iron block 51, so that the connecting rod 53 together with the corresponding ball head 54 slide outward through the corresponding through hole 44 to disengage from the corresponding through hole 44, and the restriction on each group of arc baffles 39 is released. A reducer is provided at the output end of the servo motor 34. After each normalizing heating is completed, the servo motor 34 is controlled to start to drive the gear 35 to rotate slowly, and cooperate with the ring gear 33 to drive the rotating cylinder 10 to rotate 60° and then stop, so that each group of piston rods 18 in the normalizing chamber 4 rotates into the precooling chamber 5, and so on. The corresponding piston rods 18 in the precooling chamber 5, the water cooling chamber 6, the tempering chamber 7, the pick-up and place chamber 8 and the preheating chamber 9 all rotate 60° clockwise to enter the adjacent chamber.

[0049] After normalizing heating, each group of piston rods 18 enters the precooling chamber 5, and the exhaust fan 27 is controlled to start, and the external cold air is drawn into the precooling chamber 5 through the exhaust pipe 20 to exchange heat with the piston rods 18, so as to achieve precooling of the piston rods 18 and avoid excessive temperature difference in subsequent water cooling, which affects the quality; the hot air after heat exchange enters the preheating chamber 9 through the outlet pipe 21, the air supply pipe, and the air inlet pipe 25 in turn for preheating, so that during subsequent normalizing heating, the temperature difference will not change too much, thereby improving the quality of heat treatment.

[0050] After precooling, the piston rod 18 rotates and enters the water cooling chamber 6, the water inlet pipe 22 is connected to the external cold water pipeline, and the water outlet pipe 23 is connected to the external water supply pipeline. The water inlet pipe 22 and the water outlet pipe 23 are both provided with electromagnetic water valves, which control the opening of the electromagnetic water valves on the water inlet pipe 22 and the water outlet pipe 23, so that external cold water enters the water cooling chamber 6 through the water inlet pipe 22, and performs water-cooled heat exchange with the corresponding piston rod 18. The hot water after heat exchange is discharged through the water outlet pipe 23, thereby realizing water cooling of the piston rod 18.

[0051] The second resistance heating box 24 is controlled to start, so that the temperature in the tempering chamber 7 rises to the tempering temperature, and the piston rod 18 in the tempering chamber 7 is tempered.

[0052] After the tempered piston rod 18 is rotated 60 degrees and enters the taking-and-placing chamber 8, the piston rod 18 in the taking-and-placing chamber 8 is taken out through the cooperation between various components.

[0053] In summary, the heat treatment of the piston rod 18 is completed.

[0054] Embodiment 3

[0055] See also Figure 1-16 , the third embodiment of the present invention is improved as follows on the basis of the second embodiment. Specifically, an electric push rod 60 is fixedly installed on the side surface of the support tube 3 near the fixed plate 43, and a fixing frame 61 is fixed on the side surface of the support tube 3; a plurality of arc-shaped support tubes 62 adapted to the corresponding inlet and outlet 57 are fixed on the side surface of the fixing frame 61; a pick-up and placement member 63 is fixed on the telescopic end of the electric push rod 60; the pick-up and placement member 63 includes a mounting frame 64 fixed on the telescopic end of the electric push rod 60; a plurality of adsorption tubes 65 slidingly matched with the corresponding arc-shaped support tubes 62 are fixed on the mounting frame 64; one end of the adsorption tube 65 is sealed, and its inner wall A retaining ring 66 is fixed; connecting pipes 67 are arranged between adjacent adsorption tubes 65; an ear tube 68 is arranged on a connecting pipe 67; a connecting pipe 69 is arranged on the end of an adsorption tube 65; a controller 70 and an air pump 71 are sequentially installed on the mounting frame 64; a hose is connected between the air suction end of the air pump 71 and the ear tube 68; an electromagnetic valve is arranged on the connecting pipe 69; the output end of the controller 70 is electrically connected to the servo motor 34, the electromagnetic suction cup 52, the electric push rod 60, the first resistance heating box 19, the second resistance heating box 24, the exhaust fan 27 and the air pump 71.

[0056] The working principle of the third embodiment is as follows: by inserting one end of each group of piston rods 18 into the corresponding adsorption tube 65, controlling and starting the vacuum pump 71, and extracting the air between the piston rod 18 and the adsorption tube 65 through the ear tube 68 to form a negative pressure, and adsorbing the end of the piston rod 18 against the retaining ring 66, controlling and starting the electric push rod 60 to pass the piston rod 18 through the corresponding inlet and outlet 57, inserting the piston rod 18 between the lower placement groove 15 and the upper placement groove 17, and screwing the corresponding threaded column 58 into the inlet and outlet 57, the piston rod 18 is delivered, and at the same time, it is convenient to remove the piston rod 18 after heat treatment, replacing the transmission lifting method, and improving the safety of operation.

[0057] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0058] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0059] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0061] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A piston rod heat treatment device, comprising an outer cylinder member (1) and an inner cylinder member (2) rotatably disposed in the outer cylinder member (1); characterized in that: The outer cylinder (1) comprises a support cylinder (3); a normalizing chamber (4), a precooling chamber (5), a water cooling chamber (6), a tempering chamber (7), a loading and unloading chamber (8) and a preheating chamber (9) are sequentially formed in a circular array between the support cylinder (3) and the inner cylinder (2); The inner cylinder member (2) comprises a rotating cylinder (10) rotatably mounted on a supporting cylinder (3); a fixed cylinder (11) is coaxially fixed to the inner wall of the rotating cylinder (10); six groups of heat insulation boards (12) are evenly fixed between the fixed cylinder (11) and the inner wall of the rotating cylinder (10); and a communication port (13) is provided on the circumferential side surface of the rotating cylinder (10) between two adjacent heat insulation boards (12); The fixed cylinder (11) has a plurality of lower placement grooves (14) formed on the circumferential side surface near both ends thereof, and an avoidance groove (15) formed on the circumferential side surface between two corresponding lower placement grooves (14); an arc-shaped plate (16) is fixed between adjacent heat insulation plates (12); the inner circumferential side surface of the arc-shaped plate (16) has a plurality of upper placement grooves (17) coaxially arranged with the corresponding lower placement grooves (14); a piston rod (18) is slidably arranged between the coaxial lower placement grooves (14) and the upper placement grooves (17); The end of the support cylinder (3) is provided with a rotation opening (29); the inner wall of the rotation opening (29) is provided with an annular groove (30); the end of the rotation cylinder (10) is fixed with a connecting column (31) which is rotationally matched with the rotation opening (29); the peripheral side of the connecting column (31) is provided with an annular rail (32) which is rotationally matched with the annular groove (30); the end of the connecting column (31) is fixed with a gear ring (33); the end of the support cylinder (3) is fixedly mounted with a servo motor (34); the output end of the servo motor (34) is fixed with a gear (35) which meshes with the gear ring (33); An inner wall of each of the communication openings (13) is provided with an arc-shaped receiving groove (36); an arc-shaped connecting groove (37) is provided between each of the adjacent arc-shaped receiving grooves (36); a baffle member (38) is slidably arranged between each of the arc-shaped receiving grooves (36); the baffle member (38) comprises a plurality of arc-shaped baffles (39) slidably arranged in the corresponding arc-shaped receiving grooves (36); a plurality of arc-shaped springs (40) are fixedly connected between each of the arc-shaped baffles (39) and the inner bottom surface of the corresponding arc-shaped receiving groove (36); and arc-shaped rods (41) slidably arranged in the arc-shaped connecting grooves (37) are symmetrically fixed between adjacent arc-shaped baffles (39); The arc-shaped baffle (39) is evenly provided with a plurality of spherical grooves (42) on the outer peripheral side surface; the support tube (3) is provided with a fixing plate (43) connected to the loading and unloading chamber (8); the fixing plate (43) is evenly provided with a plurality of through holes (44) on the surface; a plurality of slide bars (45) are symmetrically fixed on the surface of the fixing plate (43); a mounting plate (46) is fixed between the ends of each of the slide bars (45); a lifting member (47) is slidably provided between the two slide bars (45); The lifting member (47) comprises a lifting plate (48); a plurality of sliding holes (49) symmetrically provided on the surface of the lifting plate (48) and slidably matched with corresponding sliding rods (45); a plurality of return springs (50) sleeved on the corresponding sliding rods (45) are fixed between the lifting plate (48) and the mounting plate (46); an iron block (51) is fixed on the surface of the lifting plate (48); an electromagnetic suction cup (52) is fixedly installed on the bottom surface of the mounting plate (46); a plurality of connecting rods (53) are evenly fixed on the bottom surface of the lifting plate (48); and a ball head (54) matched with the corresponding spherical groove (42) is fixed at the end of the connecting rod (53).

2. A piston rod heat treatment device according to claim 1, characterized in that: The outer peripheral side of the support tube (3) is provided with a first resistance heating box (19) which is interconnected with the normalizing chamber (4); the outer peripheral side of the support tube (3) is provided with an exhaust pipe (20) and an air outlet pipe (21) which are interconnected with the precooling chamber (5) in sequence; the outer peripheral side of the support tube (3) is provided with a water inlet pipe (22) and a water outlet pipe (23) which are interconnected with the water cooling chamber (6) in sequence; the outer peripheral side of the support tube (3) is provided with a second resistance heating box (24) which is interconnected with the tempering chamber (7); the outer peripheral side of the support tube (3) is provided with an air inlet pipe (25) and an air exhaust pipe (26) which are interconnected with the preheating chamber (9) in sequence.

3. A piston rod heat treatment device according to claim 2, characterized in that: An exhaust fan (27) is fixedly mounted on the end of the exhaust pipe (20); an air supply pipe is fixedly connected between the air outlet pipe (21) and the air inlet pipe (25); the water inlet pipe (22) is connected to an external cold water pipe; the water outlet pipe (23) is connected to an external water supply pipe; and support legs (28) are symmetrically fixed to the side surfaces of the support tube (3).

4. A piston rod heat treatment device according to claim 3, characterized in that: The end of the rotating cylinder (10) is provided with a sealing groove (55); a sealing ring (56) is inserted in the sealing groove (55); an annular sealing plate (72) is fixed to the side of the sealing ring (56); a plurality of inlets (57) are evenly arranged on the side of the annular sealing plate (72); the annular sealing plate (72) is fixed to the end of the fixed cylinder (11) by means of fastening bolts; a threaded column (58) is screwed into each of the inlets (57); and a handle (59) is fixed to the end of the threaded column (58).

5. A piston rod heat treatment device according to claim 4, characterized in that: An electric push rod (60) is fixedly mounted on the peripheral side surface of the support tube (3) near the fixed plate (43), and a fixing frame (61) is fixed on the peripheral side surface; a plurality of arc-shaped support tubes (62) matched with the corresponding inlet and outlet (57) are fixed on the side surface of the fixing frame (61); a pick-up and placement member (63) is fixed on the telescopic end of the electric push rod (60); the pick-up and placement member (63) includes a mounting frame (64) fixed on the telescopic end of the electric push rod (60); a plurality of adsorption tubes (65) slidably matched with the corresponding arc-shaped support tubes (62) are fixed on the mounting frame (64); one end of the adsorption tube (65) is sealed, and a retaining ring (66) is fixed on the inner wall of the adsorption tube (65).

6. A piston rod heat treatment device according to claim 5, characterized in that: A connecting pipe (67) is provided between adjacent adsorption tubes (65); an ear tube (68) is provided on one of the connecting pipes (67); a connecting pipe (69) is provided at the end of one of the adsorption tubes (65); a controller (70) and an air pump (71) are sequentially installed on the mounting frame (64); a hose is connected between the air suction end of the air pump (71) and the ear tube (68); an electromagnetic valve is provided on the connecting pipe (69); and an output end of the controller (70) is electrically connected to the servo motor (34), the electromagnetic suction cup (52), the electric push rod (60), the first resistance heating box (19), the second resistance heating box (24), the exhaust fan (27) and the air pump (71).

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