A hydraulic cylinder production piston rod processing device

Abstract

The application discloses a kind of hydraulic oil cylinder production piston rod processing device, for grinding the device of the outer surface of cylindrical piston rod, including machine tool, fixed plate, fixed part, sliding plate, carousel, conveyor belt, first sliding block and second sliding block, not completely meshing wheel, gap, engagement plate, threaded rod, clamping plate, clamping part, by fixed part and first sliding block and second sliding block of fixed conveyor belt, piston rod is inserted into second sliding block, make sliding plate move downwards along fixed plate, first sliding block is pulled to the conveyor belt on first sliding block, make second sliding block move relative to sliding plate, drive piston rod on second sliding block to move downwards;Wherein, the position of the corresponding gap of not completely meshing wheel and sliding plate slide, and by engagement plate, so that clamping plate moves and clamps the piston rod on second sliding block, the cooperation of conveyor belt is realized in the application, and piston rod is synchronously lowered and fixed clamping, and the mode is simple in structure and convenient to operate.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of piston rod grinding machine tool structures, in particular to a piston rod machining device for hydraulic cylinder production. BACKGROUND

[0002] The piston rod of a hydraulic cylinder is an important component of the hydraulic cylinder and plays a vital role in the working performance and service life of the hydraulic cylinder. The machining process of the piston rod mainly comprises the following steps: blanking, rough turning, heat treatment, finish turning, grinding and polishing. A machine tool is used to grind the piston rod, so as to further improve the dimensional accuracy and surface quality of the piston rod.

[0003] The existing surface machining device for the piston rod of a bending machine (CN118848691A) relates to the technical field of piston rod machining and comprises a supporting base, a supporting base plate, a mounting plate and a pressing sliding seat. Travel grooves are formed in the front and back sides of the supporting base. A pushing piece is slidably installed in the travel grooves. When the non-clamped part of the piston rod is polished, the clamped part of the piston rod is simultaneously polished. When the surface of the piston rod is pre-polished, the piston rod is clamped and positioned in the up-down and left-right directions in advance, so that the polishing and polishing comprehensiveness, stability and convenience of the device are guaranteed. The problem that the clamped part of the piston rod cannot be well polished, resulting in the existence of unpolished parts in the polished piston rod and the need for subsequent rework is solved.

[0004] When the existing piston rod (such as a transmission shaft, a valve rod and the like) machining tool is used, the clamped workpiece is first moved away through the travel grooves and the pushing piece, then the clamped workpiece is opened, the piston rod is clamped and fixed by using the clamped workpiece, and finally the clamped workpiece for fixing the piston rod is moved, so that polishing movement is performed. This mode is troublesome, and the existing device cannot automatically clamp and move downward for polishing.

[0005] Therefore, the application provides a piston rod machining device for hydraulic cylinder production. SUMMARY

[0006] The application aims to provide a piston rod machining device for hydraulic cylinder production to solve the problems in the background art.

[0007] To achieve the above-mentioned purpose, the application provides a piston rod machining device for hydraulic cylinder production, which comprises a machine tool, and a fixed plate is fixedly connected inside the machine tool.

[0008] Further comprising: a fixed part and a sliding plate slidingly matched with the fixed plate, both ends of the sliding plate are rotationally connected with rotating discs, a conveying belt is transmissionally connected between the two rotating discs, the first sliding block and the second sliding block are slidingly matched with the fixed part on the conveying belt, an incomplete meshing wheel slidingly matched with the sliding plate is rotationally connected in the second sliding block, a notch is formed in the incomplete meshing wheel, and an engaging plate engaging with the incomplete meshing wheel is fixedly embedded on the sliding plate;

[0009] A threaded rod is threadedly connected with the middle shaft of the incomplete meshing wheel, the end of the threaded rod is connected with a clamping plate, the clamping plate is used for clamping a piston rod passing through the second sliding block, and the incomplete meshing wheel is provided with a clamping part for clamping the piston rod by driving the clamping plate.

[0010] A power part and a movable block sliding on the bottom of the machine tool are rotationally connected with a grinding block in the movable block by the power part, a grinding hole is formed in the middle of the grinding block, and the inner wall of the grinding hole is grindingly matched with the outer surface of the piston rod.

[0011] Preferably, the fixed part comprises a plug rod and a first telescopic cylinder, the first telescopic cylinder is fixedly connected with the first sliding block and the second sliding block, the telescopic end of the first telescopic cylinder is fixedly connected with the plug rod, the ends of the two plug rods are respectively inserted into the first sliding block and the second sliding block and are fixedly connected with arc-shaped pressing plates, the arc-shaped pressing plates are abuttingly matched with the conveying belt, and the first sliding block is fixedly connected with the fixed plate.

[0012] Preferably, the sliding plate is slidingly matched with the fixed plate, a second telescopic cylinder is fixedly connected with the end of the sliding plate.

[0013] Preferably, the second sliding block is provided with an avoiding groove, the incomplete meshing wheel is located in the avoiding groove, and the second sliding block is slidingly matched with the sliding plate and the fixed plate.

[0014] Preferably, the clamping part comprises a threaded sleeve fixedly communicated with the middle part of the incomplete meshing wheel, the threaded sleeve is threadedly connected with the threaded rod, and the second sliding block is provided with a limiting part for moving the threaded rod.

[0015] Preferably, the limiting part comprises a rectangular rod fixedly connected with the inside of the second sliding block, and the rectangular rod is movably inserted into the threaded rod.

[0016] Preferably, two matching plates are rotationally connected in the second sliding block by torsion spring rods, and the matching plates simultaneously act on the piston rod with the clamping plate.

[0017] Preferably, the power component comprises a motor fixedly connected with the movable block, an output shaft of the motor is fixedly connected with a gear engaged with the grinding block, the grinding block is fixedly connected with a limiting ring plate rotating in the movable block, and the machine tool is provided with an adjusting component for adjusting the contact distance between the grinding hole and the piston rod.

[0018] Preferably, the adjusting component comprises a third telescopic cylinder fixedly connected with the bottom of the machine tool, a telescopic end of the third telescopic cylinder is fixedly connected with the movable block, and the movable block is fixedly connected with a limiting rod inserted into the bottom of the machine tool.

[0019] Compared with the prior art, the present application has the following beneficial effects:

[0020] By adjusting the first sliding block and the second sliding block to abut against and fix the conveying belt, the piston rod is inserted into the second sliding block, the sliding plate is moved downward along the fixed plate, the two rotating discs are synchronously moved downward, the conveying belt on the first sliding block is pulled due to the fixed position of the first sliding block, the rotating disc is rotated, the conveying belt is driven to move, the second sliding block is moved relative to the sliding plate, and the piston rod on the second sliding block is moved downward.

[0021] In the process that the second sliding block moves along the sliding plate, the position of the corresponding gap of the incomplete engagement wheel is not completely engaged with the sliding plate, the incomplete engagement wheel does not rotate, the incomplete engagement wheel is rotated under the action of the engagement plate, the threaded sleeve is synchronously rotated, the clamping plate is moved and cooperated with the cooperation plate, the piston rod on the second sliding block is clamped and fixed, the piston rod is synchronously moved downward and clamped and fixed through the cooperation of the conveying belt, and the structure is simple and the operation is convenient.

[0022] The piston rod is further moved downward by further starting the second telescopic cylinder, the position of the piston rod relative to the grinding hole is switched, and the piston rod is comprehensively ground.

[0023] The first sliding block and the second sliding block are abutted against and fixed with the conveying belt, and are cooperated with the fixing component, so that the downward movement distance of the piston rod is flexibly changed, and the applicability of the device is increased. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0025] Figure 2 It is a schematic diagram of the internal structure of the machine tool of the present application;

[0026] Figure 3 It is a schematic diagram of the cooperation structure between the fixed plate and the movable block of the present application;

[0027] Figure 4A side view of the cooperation structure between the fixed plate and the movable block of the present application;

[0028] Figure 5 A left view of the cooperation structure between the fixed plate and the movable block of the present application;

[0029] Figure 6 A split structure diagram of the power element of the present application;

[0030] Figure 7 A split structure diagram of the piston rod and the grinding block of the present application;

[0031] Figure 8 A split structure diagram of the fixed plate and the sliding plate of the present application;

[0032] Figure 9 A cross-sectional structure diagram of the fixed plate of the present application;

[0033] Figure 10 A cooperation structure diagram of the fixed plate, the first sliding block and the sliding plate of the present application;

[0034] Figure 11 A split structure diagram of the fixed plate, the first sliding block and the sliding plate of the present application;

[0035] Figure 12 A split structure diagram of the first sliding block and the conveying belt of the present application;

[0036] Figure 13 A cross-sectional structure diagram of the second sliding block of the present application;

[0037] Figure 14 A split structure diagram of the rotating disc and the sliding plate of the present application;

[0038] Figure 15 A split structure diagram of the incomplete meshing wheel and the second sliding block of the present application;

[0039] Figure 16 A cooperation structure diagram of the incomplete meshing wheel, the sliding plate and the meshing plate of the present application;

[0040] Figure 17 A cooperation structure diagram of the present application Figure 4 A cross-sectional structure diagram of the movable block in the present application;

[0041] Figure 18 A cooperation structure diagram of the piston rod and the cross-sectional movable block, the grinding block and the limiting ring plate of the present application;

[0042] Figure 19 A split structure diagram of the movable block, the piston rod, the grinding block and the limiting ring plate of the present application.

[0043] In the figure: 1, machine tool; 2, fixed plate; 3, sliding plate; 4, rotating disc; 5, conveyor belt; 6, first sliding block; 7, second sliding block; 8, incomplete meshing wheel; 9, notch; 10, meshing plate; 11, threaded rod; 12, clamping plate; 13, movable block; 14, grinding block; 15, grinding hole; 16, insertion rod; 17, first telescopic cylinder; 18, arc-shaped pressing plate; 19, second telescopic cylinder; 20, avoiding groove; 21, threaded sleeve; 22, rectangular rod; 23, matching plate; 24, motor; 25, gear; 26, limiting ring plate; 27, third telescopic cylinder; 28, limiting rod. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0045] Please refer to Figures 1-19 The present application provides a piston rod machining device for hydraulic cylinder production, which comprises a machine tool 1, and a fixed plate 2 is fixedly connected inside the machine tool 1.

[0046] Compared with the traditional 360° polishing of the entire circular arc surface of the cylindrical piston rod, the piston rod of the transmission shaft, the valve rod and the like only needs to ensure that one side in contact with another component has high precision / surface finish, and the other side can remain in the original state because there is no matching requirement.

[0047] It is worth noting that: the present application can also be used for local quenching or carburizing treatment, and only the surface of the local hardened layer is polished to avoid damaging the internal metallographic structure.

[0048] Further comprising: a fixed part and a sliding plate 3 in sliding cooperation with the fixed plate 2, both ends of the sliding plate 3 are rotatably connected with rotating discs 4, a conveyor belt 5 (which can be a non-elastic rope structure such as a steel wire rope, a chain or the like) is transmissionally connected between the two rotating discs 4, the first sliding block 6 and the second sliding block 7 are slidably connected on the conveyor belt 5 through the fixed part, an incomplete meshing wheel 8 in sliding cooperation with the sliding plate 3 is rotatably connected in the second sliding block 7, notches 9 are formed in the incomplete meshing wheel 8, and a meshing plate 10 in meshing cooperation with the incomplete meshing wheel 8 is fixedly embedded on the sliding plate 3;

[0049] A threaded rod 11 is threadedly connected with the central shaft of the incomplete meshing wheel 8, and a clamping plate 12 is connected at the end of the threaded rod 11, the clamping plate 12 is used for clamping the piston rod passing through the second sliding block 7, and the incomplete meshing wheel 8 is provided with a clamping part for clamping the piston rod by driving the clamping plate 12;

[0050] The power element and the movable block 13 sliding on the bottom of the machine tool 1 are connected by the power element rotating inside the movable block 13, the grinding block 14 is provided with the grinding hole 15 in the middle, and the inner wall of the grinding hole 15 is ground with the outer surface of the piston rod;

[0051] The processing method of the present application is as follows:

[0052] Step one, through the fixed part on the first sliding block 6, the first sliding block 6 is pressed and fixed with the conveyor belt 5, wherein the first sliding block 6 is connected and fixed with the fixed plate 2, and through the fixed part on the second sliding block 7, the second sliding block 7 is pressed and fixed with the conveyor belt 5, and the second sliding block 7 can slide along the fixed plate 2;

[0053] Step two, insert the piston rod into the second sliding block 7, and preliminarily press it by the two matching plates 23, so that the piston rod is pressed in the second sliding block 7, and the piston rod will not be separated from the second sliding block 7;

[0054] Step three, start the second telescopic cylinder 19, move the sliding plate 3 downward along the fixed plate 2, drive the two rotating discs 4 to move downward synchronously, and because the first sliding block 6 is fixed in position, the conveyor belt 5 on the first sliding block 6 is pulled, so that the rotating disc 4 rotates, so that the second sliding block 7 moves relative to the sliding plate 3, thereby driving the piston rod on the second sliding block 7 to move downward;

[0055] When the second sliding block 7 moves along the sliding plate 3, the position of the corresponding gap 9 of the incomplete engagement wheel 8 does not slide with the sliding plate 3, and the incomplete engagement wheel 8 does not rotate, when the incomplete engagement wheel 8 contacts the engagement plate 10, under the action of the engagement plate 10, the incomplete engagement wheel 8 rotates, thereby driving the threaded sleeve 21 to rotate synchronously, and under the action of the limiting part, the threaded rod 11 moves horizontally (the threaded rod 11 does not rotate), the clamping plate 12 moves synchronously and cooperates with the matching plate 23, clamping the piston rod on the second sliding block 7;

[0056] The second telescopic cylinder 19 continues to move, so that the position of the corresponding gap 9 of the incomplete engagement wheel 8 slides with the sliding plate 3, and the incomplete engagement wheel 8 does not rotate, thereby ensuring that the clamping plate 12 clamps the piston rod, after the fixed piston rod moves into the grinding hole 15, stop the telescopic movement of the second telescopic cylinder 19;

[0057] Step four, adjust the contact distance between the grinding hole 15 and the piston rod by the adjusting part, and make the grinding block 14 rotate by the power element to grind the fixed piston rod;

[0058] Step five, further start the second telescopic cylinder 19, further move the piston rod downward, switch the position of the piston rod with the grinding hole 15, and thereby comprehensively grind the piston rod.

[0059] The fixing member comprises the inserting rod 16 and the first telescopic cylinder 17, the first telescopic cylinder 17 is connected and fixed with the first sliding block 6 and the second sliding block 7, the telescopic end of the first telescopic cylinder 17 is connected and fixed with the inserting rod 16, two inserting rods 16 are respectively inserted into the first sliding block 6 and the second sliding block 7 and are fixedly connected with the arc-shaped pressing plate 18, the arc-shaped pressing plate 18 is abuttingly matched with the conveying belt 5, the first sliding block 6 is connected and fixed with the fixed plate 2;

[0060] By starting the first telescopic cylinder 17, the inserting rod 16 is moved, the arc-shaped pressing plate 18 is driven to move, so that the positions of the first sliding block 6 and the second sliding block 7 relative to the conveying belt 5 are adjusted, the first sliding block 6 and the second sliding block 7 are fixed with the conveying belt 5, the conveying belt 5 on the first sliding block 6 is pulled, under the sliding of the sliding plate 3, the rotating disc 4 is moved downward and is rotated at the same time, the second sliding block 7 is moved relative to the sliding plate 3 by the conveying belt 5, so that the clamped piston rod on the second sliding block 7 is moved downward into the grinding hole 15, and the subsequent operation of the power member is facilitated, and the fixed piston rod is ground.

[0061] The sliding plate 3 is slidably matched with the fixed plate 2, the second telescopic cylinder 19 is fixedly connected on the fixed plate 2, the telescopic end of the second telescopic cylinder 19 is connected and fixed with the end of the sliding plate 3, the sliding plate 3 is slid along the fixed plate 2 by the telescoping of the second telescopic cylinder 19, the first sliding block 6 is fixed in position, and the first sliding block 6 is connected and fixed with the conveying belt 5 by the fixing member, so that the sliding plate 3 and the second sliding block 7 are moved downward, the piston rod is moved to the grinding hole 15, the incomplete meshing wheel 8 is moved to contact the meshing plate 10, and the incomplete meshing wheel 8 is rotated under the action of the meshing plate 10, so that the clamping and fixing of the piston rod by the clamping plate 12 are completed.

[0062] The avoiding groove 20 is formed on the second sliding block 7, the incomplete meshing wheel 8 is located in the avoiding groove 20, the second sliding block 7 is slidably matched with the sliding plate 3 and the fixed plate 2, the sliding of the sliding plate 3 and the fixed plate 2 relative to the second sliding block 7 guarantees the stability of the mutual sliding.

[0063] The clamping member comprises the threaded sleeve 21 fixedly communicated with the middle part of the incomplete meshing wheel 8, the threaded sleeve 21 is threadedly connected with the threaded rod 11, the second sliding block 7 is internally provided with the limiting member for moving the threaded rod 11, the limiting member comprises the rectangular rod 22 fixedly connected with the inside of the second sliding block 7, the rectangular rod 22 is movably inserted into the threaded rod 11;

[0064] When the second sliding block 7 moves relative to the sliding plate 3, the non-fully engaged wheel 8 rotates in the avoiding groove 20 under the action of the engaging plate 10, so that the threaded sleeve 21 rotates, and under the action of the rectangular rod 22, the threaded rod 11 slides along the rectangular rod 22, so that the threaded rod 11 moves along the threaded sleeve 21, and the threaded rod 11 does not rotate, the threaded rod 11 moving in the second sliding block 7 drives the clamping plate to move synchronously, and presses the piston rod, and the cooperation of the cooperation plate 23 is stable, the piston rod is clamped, and the self-rotating grinding block 14 is convenient for grinding the outer surface of the piston rod.

[0065] The second sliding block 7 is rotatably connected with two cooperation plates 23 through torsion spring rods, the cooperation plates 23 act on the piston rod at the same time as the clamping plate 12, the piston rod inserted into the second sliding block 7 is preliminarily fixed through the torsion spring rods, so as to avoid the piston rod from falling off the second sliding block 7, and facilitate the cooperation of the clamping plate 12 and the cooperation plate 23 for clamping the piston rod.

[0066] The power component includes a motor 24 fixedly connected with the movable block 13, an output shaft of the motor 24 is fixedly connected with a gear 25 engaged with the grinding block 14, a limiting ring plate 26 rotatable in the movable block 13 is fixedly connected to the side surface of the grinding block 14, and the machine tool 1 is provided with an adjusting component for adjusting the contact distance between the grinding hole 15 and the piston rod;

[0067] Through the adjusting component, the inner wall of the grinding hole 15 is in contact with the outer surface of the piston rod, the motor 24 is started, the gear 25 is driven to rotate at the original position in the movable block 13, thereby driving the grinding block 14 to rotate, and the grinding hole 15 is rotated to polish the outer surface of the piston rod;

[0068] The limiting ring plate 26 ensures the stable rotation of the grinding block 14, and avoids the teeth on the outer surface of the grinding block 14 from being in frictional contact with the inner wall of the movable block 13, so that the grinding block 14 is only engaged with the gear 25.

[0069] The movable block 13 is provided with a partition plate to prevent the grinding dust of the piston rod from entering the motor 24.

[0070] The adjusting component includes a third telescopic cylinder 27 fixedly connected with the bottom of the machine tool 1, a telescopic end of the third telescopic cylinder 27 is fixedly connected with the movable block 13, and the movable block 13 is fixedly connected with a limiting rod 28 movably inserted into the bottom of the machine tool 1.

[0071] The movable block 13 is driven to move horizontally by the telescopic movement of the third telescopic cylinder 27, thereby driving the motor 24, the gear 25, the grinding block 14 and the limiting ring plate 26 to move, so that the grinding block 14 adjusts the position, the position of the grinding hole 15 changes, the distance between the inner wall of the grinding hole 15 and the clamped piston rod is adjusted, and the grinding degree of the piston rod is adjusted, and the movable block 13 moves stably through the limiting rod 28.

[0072] That is, the diameter of the grinding hole 15 is larger than the diameter of the piston rod, facilitating easy insertion of the piston rod into the grinding hole 15, and the inner wall of the grinding block 14 does not contact the outer surface of the piston rod. When polishing of the piston rod is required, the movable block 13 is moved horizontally by the extension and retraction of the third telescopic cylinder 27, so that the inner wall of the grinding hole 15 contacts the outer surface of the piston rod. The depth of contact between the inner wall of the grinding hole 15 and the outer surface of the piston rod is gradually adjusted with the degree of grinding, so as to ensure the depth of grinding.

[0073] It is worth noting that in the present application, there are multiple power members, and the sizes of the grinding holes 15 on each power member are different, so as to adapt to piston rods of different sizes.

[0074] It should be noted that in this paper, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0075] Although embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A piston rod processing device for hydraulic cylinder production, comprising: Machine tool (1), wherein a fixed plate (2) is fixedly connected inside the machine tool (1); The feature is that it further includes: a sliding plate (3) that slides in cooperation with the fixed plate (2), a turntable (4) is rotatably connected to both ends of the sliding plate (3), a conveyor belt (5) is connected between the two turntables (4), a first sliding block (6) and a second sliding block (7) are slidably cooperated on the conveyor belt (5) through a fixing member, an incompletely meshing wheel (8) that slides in cooperation with the sliding plate (3) is rotatably connected inside the second sliding block (7), a notch (9) is opened on the incompletely meshing wheel (8), and a meshing plate (10) that meshes with the incompletely meshing wheel (8) is fixedly embedded on the sliding plate (3); A threaded rod (11) is threadedly connected to the central shaft of the partially meshing wheel (8). A clamping plate (12) is connected to the end of the threaded rod (11). The clamping plate (12) is used to clamp the piston rod that passes through the second sliding block (7). The partially meshing wheel (8) is provided with a clamping member that drives the clamping plate (12) to clamp the piston rod. A movable block (13) slides at the bottom of the machine tool (1). Inside the movable block (13), a grinding block (14) is rotatably connected via a power component. A grinding hole (15) is provided through the middle of the grinding block (14). The inner wall of the grinding hole (15) is ground to fit with the cylindrical outer surface of the piston rod. The fixing component includes a plug rod (16) and a first telescopic cylinder (17). The two first telescopic cylinders (17) are respectively connected and fixed to the first sliding block (6) and the second sliding block (7). The telescopic end of the first telescopic cylinder (17) is connected and fixed to the plug rod (16). The ends of the two plug rods (16) are respectively inserted into the first sliding block (6) and the second sliding block (7) and are fixedly connected to an arc-shaped pressure plate (18). The arc-shaped pressure plate (18) is pressed against the conveyor belt (5). The first sliding block (6) is connected and fixed to the fixing plate (2). The clamping member includes a threaded sleeve (21) that is fixed to the middle of the partially meshing wheel (8). The threaded sleeve (21) is threadedly connected to the threaded rod (11). The second sliding block (7) is provided with a limiting member that allows the threaded rod (11) to move. The limiting member includes a rectangular rod (22) that is fixedly connected to the inside of the second sliding block (7), and the rectangular rod (22) is movably inserted into the threaded rod (11).

2. The piston rod processing device for hydraulic cylinder production according to claim 1, characterized in that: The slide plate (3) slides in cooperation with the fixed plate (2), and a second telescopic cylinder (19) is fixedly connected to the fixed plate (2). The telescopic end of the second telescopic cylinder (19) is connected and fixed to the end of the slide plate (3).

3. The piston rod processing device for hydraulic cylinder production according to claim 1, characterized in that: The second sliding block (7) has a clearance groove (20) and the partially engaged wheel (8) is located in the clearance groove (20). The second sliding block (7) simultaneously slides with the slide plate (3) and the fixed plate (2).

4. The piston rod processing device for hydraulic cylinder production according to claim 1, characterized in that: The second sliding block (7) is rotatably connected to two mating plates (23) via a torsion spring rod. The mating plates (23) and the clamping plate (12) act as a piston rod simultaneously.

5. The piston rod processing device for hydraulic cylinder production according to claim 1, characterized in that: The power component includes a motor (24) that is fixedly connected to the movable block (13). The output shaft of the motor (24) is fixedly connected to a gear (25) that meshes with the grinding block (14). The side of the grinding block (14) is fixedly connected to a limiting ring plate (26) that rotates within the movable block (13). The machine tool (1) is provided with an adjusting component for adjusting the contact distance between the grinding hole (15) and the piston rod.

6. The piston rod processing device for hydraulic cylinder production according to claim 5, characterized in that: The adjusting component includes a third telescopic cylinder (27) that is fixedly connected to the bottom of the machine tool (1). The telescopic end of the third telescopic cylinder (27) is fixedly connected to the movable block (13). A limiting rod (28) that is movablely inserted into the bottom of the machine tool (1) is fixedly connected to the movable block (13).

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