Hydraulic cylinder body structure and fixing tool thereof

Abstract

The invention discloses a hydraulic cylinder body structure and a fixing tool thereof, and relates to the field of cylinder body fixing. The hydraulic cylinder body structure and the fixing tool thereof comprise a cylinder barrel and two oil holes communicated with the interior of the cylinder barrel, and further comprise an adjusting unit and a fixing table which are installed on a grinding machine. According to the fixing tool of the hydraulic cylinder body structure, hydraulic oil is shunted under the action of the side shunting grooves and the center shunting groove in the shunting seat; under the rotation of the outer pushing rod, the multiple outer positioning clamps are driven to make contact with the outer wall of the cylinder barrel, under the action of the outer positioning clamps, the cylinder barrel is preliminarily limited, the inner positioning clamps and the inner moving base are pushed through the inner pushing rod to slide on the contact base, and the cylinder barrel is secondarily limited; under the action of the inner positioning clamp and the outer positioning clamp, the cylinder barrel is limited, the stability of the cylinder barrel is guaranteed, meanwhile, positioning is conducted in cooperation with the positioning groove, a flow dividing base in the cylinder barrel is conveniently positioned, and the machining precision is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cylinder bodies, in particular to a hydraulic cylinder body structure and a fixing tool thereof. Background Art

[0002] During the processing of the hydraulic cylinder body, the one-piece formed hydraulic cylinder body has a more compact structure, reduces the connections and gaps between components, and improves the overall stability and reliability of the hydraulic cylinder body. At the same time, due to the reduction of connecting parts, the risk of oil leakage is also reduced, thereby improving the working efficiency and service life of the hydraulic cylinder body.

[0003] The inner part of the hydraulic cylinder is divided into two oil chambers, each of which is filled with hydraulic oil. When the piston moves rapidly toward the baffle, the pressure surface of the piston is subjected to the pressure of the hydraulic oil, generating a force proportional to the pressure. At this time, under pressure, the hydraulic oil directly collides with the baffle. After the collision, the hydraulic oil directly impacts the cylinder wall, posing a risk of cylinder explosion. By setting a buffer seat in the cylinder body, the hydraulic oil can be diverted to avoid impact on the cylinder wall and reduce the pressure on the cylinder body.

[0004] At present, in the process of one-piece forming of hydraulic cylinder body, the cylinder body raw material is placed on a grinder and clamped, and then the cylinder body raw material is processed by the grinder to process the cylinder body raw material into a cylinder body with higher precision. During the processing, in order to ensure the processing accuracy of the cylinder body, the cylinder body is fixed, the outer wall of the cylinder body raw material is clamped by adjusting the three-clamp fixing clamp, and then the cylinder body is processed by manually adjusting the turning tool. Usually, the cylinder body raw material is supported by a support frame. However, in the prior art, when the cylinder body is supported by the support frame, it is necessary to manually adjust the position of the support frame, adjust the support frame to the center position of the cylinder body raw material, ensure stability during processing, and adjust the support height of the cylinder body at the same time. At this time, it is necessary to adjust the heights of different support frames respectively. , it is inconvenient to adjust and cannot ensure the height consistency of different support frames. When the cylinder body raw material is supported to a suitable height, the outer wall of the cylinder body is fixed by a three-clamp fixing clamp, and the cylinder body cannot be positioned. When it is processed, the cylinder body is only fixed and then processed manually. In the cylinder body structure of the present application, when the hydraulic cylinder body is processed, the internal diverter seat performs diverter buffering, and the corresponding hydraulic rod needs to be installed. When the liquid cylinder body is processed, the corresponding positioning seat will be processed, but when the hydraulic cylinder body is fixed, the corresponding positioning seat cannot be used for designated positioning, resulting in the need for manual positioning during the processing. The positioning accuracy is poor and the positioning difficulty is high, which is not conducive to processing. Therefore, we propose a hydraulic cylinder body structure and its fixing tooling. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a hydraulic cylinder structure and a fixing tool thereof, which solves the problem that after the pressure surface of the piston is subjected to the pressure of the hydraulic oil, the hydraulic oil directly collides with the baffle, and the hydraulic oil directly impacts the cylinder wall after the collision; when the supporting height of the cylinder is adjusted, it is necessary to adjust the heights of different support frames respectively, which is inconvenient to adjust and the heights of different support frames cannot be guaranteed to be consistent; when the cylinder material is supported to a suitable height, the outer wall of the cylinder body is fixed by a three-clamp fixing clamp, and the cylinder body cannot be positioned; when it is processed, the internal diverter seat is installed corresponding to the hydraulic rod, and when the liquid cylinder is processed, the corresponding positioning seat will be processed; but when the hydraulic cylinder is fixed, it cannot correspond to the positioning seat for specified positioning, resulting in the need for manual positioning during the processing, and the positioning accuracy is poor and the positioning difficulty is high, which is not conducive to processing.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: the hydraulic cylinder structure and its fixing tooling include a cylinder barrel and two oil holes connected to the inside of the cylinder barrel, the inside of the cylinder barrel is fixedly connected with a diverter seat, the inner wall of the diverter seat is provided with a plurality of side diverter grooves and a central diverter groove, the plurality of side diverter grooves are distributed at equal distances, and sealing units are provided at both ends of the cylinder barrel.

[0007] The sealing unit includes a positioning seat integrated with the cylinder and an extrusion seat slidably connected to the cylinder, the positioning seat is provided with a positioning groove corresponding to the side diverter groove on the diverter seat, and an extrusion spring is fixedly connected between the positioning seat and the extrusion seat.

[0008] Preferably, the outer wall of the positioning seat is provided with a fitting seat integrated with the positioning groove, the fitting seat fits with the inner wall of the extrusion seat, the outer wall of the extrusion seat is fixedly connected with a sliding rod, and the sliding rod is slidably connected with the inner wall of the positioning seat.

[0009] Preferably, it comprises an adjustment unit and a fixed table mounted on the grinding machine,

[0010] The adjustment unit comprises two support seats slidably connected to the grinding machine and a fixed frame fixed to the grinding machine, a first rotating rod is rotatably connected between the two support seats, and a second rotating rod is rotatably connected between the fixed frame and the adjacent support seat;

[0011] The support seat is provided with a fixing unit,

[0012] The fixing unit comprises an upper fixing seat and a lower fixing seat which are slidably connected to the supporting seat;

[0013] A positioning rod is slidably connected to the inner wall of the fixing platform, and a contact seat is fixedly connected to the end of the positioning rod;

[0014] The fixing platform is provided with an external positioning unit.

[0015] The external positioning unit comprises a plurality of external movable seats and external positioning clamps slidably connected to the inner wall of the fixed platform, an external push rod is rotatably connected to the outer wall of the external movable seat, the other ends of the plurality of external push rods are rotatably connected to the external rotating seat, and the external rotating seat is slidably connected to the outer wall of the positioning rod;

[0016] The contact seat is provided with an inner positioning unit,

[0017] The inner positioning unit includes an inner rotating seat slidably connected to the positioning rod, a plurality of inner push rods are rotatably connected to the outer wall of the inner rotating seat, the other end of the inner push rod is rotatably connected to an inner positioning clip, and the plurality of inner positioning clips are all slidably connected to the inner wall of the contact seat.

[0018] Preferably, an adjusting screw is rotatably connected to the fixing frame, and the adjusting screw is threadedly connected to the two supporting seats.

[0019] Preferably, the outer peripheral wall of the adjusting screw rod is slidably connected with a sliding seat, and the sliding seat is rotatably connected to the two first rotating rods.

[0020] Preferably, one end of the first rotating rod away from the sliding seat is rotatably connected to the lower fixed seat, and one of the first rotating rods is rotatably connected to the second rotating rod.

[0021] Preferably, the lower fixing seat and the upper fixing seat are slidably connected in a slide groove provided on the inner wall of the support seat, a fixing screw is threadedly connected on the inner wall of the support seat, and the fixing screw is rotatably connected to the upper fixing seat.

[0022] Preferably, the upper fixed seat and the lower fixed seat are arranged corresponding to the contact seat, and a connecting rod is slidably connected to the contact seat, and the two ends of the connecting rod are respectively fixedly connected to the connecting seat and the inner rotating seat, and the connecting seat is slidably connected to the inner wall of the positioning rod, and the connecting seat is fixedly connected to the outer rotating seat.

[0023] Preferably, a limit spring is fixedly connected inside the positioning rod, and two ends of the limit spring are fixedly connected to the positioning rod and the connecting seat respectively.

[0024] Preferably, an inner movable seat is slidably connected to the inner wall of the contact seat, the inner movable seat is fixedly connected to the inner positioning clip, and a plurality of the inner positioning clips and the inner movable seat are distributed at equal distances on the contact seat.

[0025] The cylinder is placed in two support seats, the lower fixed seat supports the cylinder, and the adjusting screw is rotated, one of the support seats moves toward the fixed frame, and the other support seat moves the same distance relative to the support seat, pushing the second rotating rod and the first rotating rod to rotate, and under the action of the two first rotating rods and the second rotating rod, the two lower fixed seats are pushed to the same height on the support seat to adjust the height of the cylinder;

[0026] The cylinder is pushed to move by the cylinder, and one end of the cylinder contacts and squeezes the contact seat, driving the positioning rod to move. At this time, the connecting seat and the outer rotating seat move at the same time. The outer push rod rotates to drive the outer moving seat to slide on the inner wall of the fixed platform, driving multiple outer positioning clamps to contact the outer wall of the cylinder. Under the action of the outer positioning clamps, the cylinder is initially limited;

[0027] At this time, the cylinder continues to move and squeezes the contact seat. At this time, the outer rotating seat cannot move, the positioning rod slides along the connecting seat, and the inner rotating seat pushes the inner push rod to rotate, pushing the inner positioning clamp and the inner moving seat to slide on the contact seat, and then multiple inner positioning clamps contact and squeeze the inner wall of the cylinder, thereby limiting the cylinder for a second time.

[0028] When the height of the cylinder is adjusted to a suitable position, the upper fixing seat is driven to slide along the slide groove by rotating the fixing screw rod. At this time, the upper fixing seat contacts and squeezes the top end surface of the cylinder to fix the cylinder in multiple support seats.

[0029] The present invention discloses a hydraulic cylinder structure and a fixing tool thereof, which have the following beneficial effects:

[0030] 1. The hydraulic cylinder structure and its fixing tooling, when the piston moves rapidly toward the baffle, the pressure surface of the piston is subjected to the pressure of the hydraulic oil, generating a force proportional to the pressure. At this time, the hydraulic oil is pushed under pressure, and the hydraulic oil is transmitted through the diverter seat. Under the action of the side diverter groove and the center diverter groove in the diverter seat, the hydraulic oil is diverted, effectively avoiding a large impact of the hydraulic oil on the baffle, thereby reducing the impact on the cylinder, protecting the cylinder, and increasing the service life of the cylinder.

[0031] 2. The hydraulic cylinder structure and its fixing tooling, the cylinder is pushed to move by the cylinder, at which time one end of the cylinder contacts and squeezes the contact seat, at which time the contact seat drives the positioning rod to slide on the fixed platform, and under the movement of the positioning rod, drives the connecting seat and the outer rotating seat to move at the same time, at which time the outer rotating seat pulls the outer push rod to rotate, under the rotation of the outer push rod, the outer moving seat slides on the inner wall of the fixed platform, driving multiple outer positioning clamps to contact the outer wall of the cylinder, and under the action of the outer positioning clamps, the cylinder is preliminarily limited;

[0032] 3. The hydraulic cylinder structure and its fixing tooling, when the inner rotating seat moves relative to the contact seat, the inner rotating seat pushes the inner push rod to rotate, and the inner positioning clamp and the inner movable seat are pushed to slide on the contact seat by the inner push rod, and then multiple inner positioning clamps contact and squeeze the inner wall of the cylinder barrel, and the cylinder barrel is restricted for a second time. When the cylinder barrel cannot be moved, the cylinder barrel is restricted by the action of the inner positioning clamp and the outer positioning clamp, thereby ensuring the stability of the cylinder barrel. At the same time, it is positioned in conjunction with the positioning groove, which facilitates the positioning of the diverter seat in the cylinder barrel 1 and improves the processing accuracy.

[0033] The hydraulic cylinder structure and its fixing tooling, when the adjusting screw is rotated, drive one of the support seats to move toward the fixed frame, and the other support seat moves the same distance relative to the support seat. Since the relative movement distances are the same, the rotation angles of the first rotating rod and the second rotating rod are the same. Under the action of the two first rotating rods, the two lower fixed seats are at the same height on the support seats. The cylinder barrel is pushed to move by the first rotating rod to adjust the height of the cylinder barrel, and the two lower fixed seats move at the same time, so that the adjustment of the cylinder barrel is relatively stable, and it is convenient to adjust the cylinder barrel to a suitable height. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 It is a schematic diagram of the cylinder structure of the present invention;

[0036] Figure 2 It is a schematic diagram of the internal structure of the cylinder of the present invention;

[0037] Figure 3 It is a schematic diagram of the structure of the grinding machine of the present invention;

[0038] Figure 4 This is a schematic diagram of the connection between the adjustment unit and the fixing unit of the present invention;

[0039] Figure 5 This is a schematic diagram of the structure of the regulating unit of the present invention;

[0040] Figure 6 It is a schematic diagram of the structure of the fixing unit of the present invention;

[0041] Figure 7 It is a schematic diagram of the structure of the fixing platform of the present invention;

[0042] Figure 8 It is a schematic diagram of the internal structure of the fixing platform of the present invention;

[0043] Fig. 9 This is a schematic diagram of the structure of the external positioning unit of the present invention;

[0044] Fig.10 It is a schematic diagram of the structure of the positioning unit in the present invention;

[0045] Fig.11 It is an enlarged view of the partial structure of the positioning unit in the present invention.

[0046] In the figure: 1, cylinder; 101, oil hole; 102, diverter seat; 2, sealing unit; 201, positioning seat; 202, extrusion seat; 203, positioning groove; 204, fitting seat; 205, slide rod; 206, extrusion spring; 3, grinding machine; 4, adjustment unit; 401, support seat; 402, fixed frame; 403, adjustment screw rod; 404, sliding seat; 405, first rotating rod; 406, second rotating rod; 5, fixing unit; 501, upper fixing seat ; 502, lower fixed seat; 503, fixed screw; 504, slide groove; 6, fixed platform; 7, contact seat; 701, positioning rod; 8, external positioning unit; 801, external movable seat; 802, external positioning clamp; 803, external push rod; 804, external rotating seat; 9, internal positioning unit; 901, connecting seat; 902, limit spring; 903, connecting rod; 904, internal rotating seat; 905, internal push rod; 906, internal positioning clamp; 907, internal movable seat. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are 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.

[0048] The embodiment of the present application solves the problem that after the pressure surface of the piston is subjected to the pressure of the hydraulic oil, the hydraulic oil directly collides with the baffle, and the hydraulic oil directly impacts the cylinder wall after the collision, by providing a hydraulic cylinder structure and a fixing device thereof; when the supporting height of the cylinder is adjusted, the heights of different supporting frames need to be adjusted separately, which is inconvenient to adjust and the heights of different supporting frames cannot be guaranteed to be consistent. When the cylinder material is supported to a suitable height, the outer wall of the cylinder body is fixed by a three-clamp fixing clamp, and the cylinder body cannot be positioned. When it is processed, the internal diverter seat 102 is installed corresponding to the hydraulic rod. When the liquid cylinder is processed, the corresponding positioning seat 201 will be processed. However, when the liquid When the pressure cylinder body is fixed, it is impossible to correspond to the positioning seat 201 for designated positioning, resulting in the need for manual positioning during the processing. The positioning accuracy is poor and the positioning difficulty is high, which is not conducive to the processing problem. When the piston moves rapidly toward the baffle, the pressure surface of the piston is subjected to the pressure of the hydraulic oil, and a force proportional to the pressure is generated. At this time, under pressure, the hydraulic oil is pushed. At this time, the hydraulic oil is transmitted through the diverter seat 102. Under the action of the side diverter groove and the central diverter groove in the diverter seat 102, the hydraulic oil is diverted, effectively avoiding the hydraulic oil from having a large impact on the baffle, thereby reducing the impact on the cylinder 1, protecting the cylinder 1, and increasing the service life of the cylinder 1.

[0049] Under the rotation of the adjusting screw rod 403, one of the support seats 401 is driven to move toward the fixed frame 402, and the other support seat 401 moves the same distance relative to the support seat 401. Since the relative movement distances are the same, the rotation angles of the first rotating rod 405 and the second rotating rod 406 are the same. Under the action of the two first rotating rods 405, the two lower fixed seats 502 are at the same height on the support seat 401. The cylinder barrel 1 is pushed to move by the first rotating rod 405 to adjust the height of the cylinder barrel 1. The two lower fixed seats 502 move at the same time, so that the adjustment of the cylinder barrel 1 is relatively stable, and it is convenient to adjust the cylinder barrel 1 to a suitable height.

[0050] The cylinder 1 is pushed to move by the cylinder, and one end of the cylinder 1 contacts and squeezes the contact seat 7. The contact seat 7 drives the positioning rod 701 to slide on the fixed platform 6. When the positioning rod 701 moves, the connecting seat 901 and the outer rotating seat 804 move simultaneously. At this time, the outer rotating seat 804 pulls the outer push rod 803 to rotate. When the outer push rod 803 rotates, the outer moving seat 801 slides on the inner wall of the fixed platform 6, driving multiple outer positioning clips 802 to contact the outer wall of the cylinder 1. Under the action of the outer positioning clips 802, the cylinder 1 is preliminarily limited.

[0051] When the inner rotating seat 904 moves relative to the contact seat 7, the inner rotating seat 904 pushes the inner push rod 905 to rotate, and the inner positioning clamp 906 and the inner movable seat 907 are pushed to slide on the contact seat 7 through the inner push rod 905, and then multiple inner positioning clamps 906 contact and squeeze the inner wall of the cylinder 1, thereby performing a secondary restriction on the cylinder 1. When the cylinder 1 cannot be moved, the cylinder 1 is restricted by the action of the inner positioning clamp 906 and the outer positioning clamp 802, thereby ensuring the stability of the cylinder 1 and effectively avoiding the occurrence of precision errors caused by its vibration during the processing.

[0052] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0053] The embodiment of the invention discloses a hydraulic cylinder structure and a fixing device thereof.

[0054] According to the attached Figure 1 and Figure 2 As shown, it includes a cylinder 1 and two oil holes 101 connected to the inside of the cylinder 1. A diverter seat 102 is fixedly connected to the inside of the cylinder 1. The inner wall of the diverter seat 102 has multiple side diverter grooves and a central diverter groove. The multiple side diverter grooves are distributed at equal distances. Sealing units 2 are provided at both ends of the cylinder 1.

[0055] When the piston moves rapidly toward the baffle, the pressure surface of the piston is subjected to the pressure of the hydraulic oil, generating a force proportional to the pressure. At this time, the hydraulic oil is pushed under pressure. At this time, the hydraulic oil is transmitted through the diverter seat 102. Under the action of the side diverter groove and the center diverter groove in the diverter seat 102, the hydraulic oil is diverted, effectively avoiding a large impact of the hydraulic oil on the baffle, thereby reducing the impact on the cylinder 1, protecting the cylinder 1, and increasing the service life of the cylinder 1.

[0056] The sealing unit 2 includes a positioning seat 201 integrated with the cylinder 1 and an extrusion seat 202 slidably connected to the cylinder 1. A positioning groove 203 is opened on the positioning seat 201, and the positioning groove 203 corresponds to the side diverter groove distribution on the diverter seat 102. An extrusion spring 206 is fixedly connected between the positioning seat 201 and the extrusion seat 202.

[0057] The outer wall of the positioning seat 201 is provided with a fitting seat 204 which is integrated with the positioning groove 203. The fitting seat 204 fits with the inner wall of the extrusion seat 202. The outer wall of the extrusion seat 202 is fixedly connected with a slide bar 205. The slide bar 205 is slidably connected with the inner wall of the positioning seat 201. Threaded grooves are provided on the outer walls on both sides of the cylinder barrel 1. The cylinder cover is installed through the threaded grooves to connect the piston rod with the cylinder barrel 1. When the piston rod is inserted into the cylinder barrel 1, a plug-in block is provided on the piston rod so that the plug-in block is slidably connected in the positioning groove 203, thereby limiting the installation position of the piston rod, so that the piston rod corresponds to the diverter seat 102, which is convenient for use.

[0058] When installing the cylinder head, the cylinder head contacts and squeezes the extrusion seat 202. At this time, the extrusion seat 202 pushes the slide bar 205 to move, so that the slide bar 205 slides along the positioning seat 201. At the same time, the extrusion spring 206 is compressed. Under the rebound of the extrusion spring 206, the extrusion seat 202 and the cylinder head are squeezed to seal the cylinder head, which is convenient for sealing the cylinder head and the cylinder barrel 1, thereby improving the overall sealing of the hydraulic cylinder and ensuring its performance.

[0059] According to the attached Figure 3 As shown in FIG. 11, it includes an adjustment unit 4 and a fixed table 6 installed on a grinding machine 3.

[0060] The adjusting unit 4 includes two supporting seats 401 slidably connected to the grinding machine 3 and a fixed frame 402 fixed to the grinding machine 3. A first rotating rod 405 is rotatably connected between the two supporting seats 401, and a second rotating rod 406 is rotatably connected between the fixed frame 402 and the adjacent supporting seats 401. Under the rotation of the adjusting screw rod 403, one of the supporting seats 401 is driven to move toward the fixed frame 402, and the other supporting seat 401 moves the same distance relative to the supporting seat 401. Since the relative moving distances are the same, the rotation angles of the first rotating rod 405 and the second rotating rod 406 are the same. Under the action of the two first rotating rods 405, the two lower fixed seats 502 are at the same height on the supporting seats 401. The cylinder barrel 1 is pushed to move by the first rotating rod 405 to adjust the height of the cylinder barrel 1. The two lower fixed seats 502 move at the same time, so that the adjustment of the cylinder barrel 1 is relatively stable, which is convenient for adjusting the cylinder barrel 1 to a suitable height.

[0061] The support base 401 is provided with a fixing unit 5.

[0062] The fixing unit 5 includes an upper fixing seat 501 and a lower fixing seat 502 which are slidably connected to the supporting seat 401. When the height of the cylinder 1 is adjusted to a suitable position, the upper fixing seat 501 is driven to slide along the slide groove 504 by rotating the fixing screw 503. At this time, the upper fixing seat 501 contacts and squeezes the top end surface of the cylinder 1, fixing the cylinder 1 in the multiple supporting seats 401, and adjusting its height to a suitable position;

[0063] A positioning rod 701 is slidably connected to the inner wall of the fixing platform 6, and the end of the positioning rod 701 is fixedly connected to the contact seat 7;

[0064] An external positioning unit 8 is provided on the fixing platform 6.

[0065] The outer positioning unit 8 includes a plurality of outer movable seats 801 and outer positioning clamps 802 which are slidably connected to the inner wall of the fixed platform 6. An outer pushing rod 803 is rotatably connected to the outer wall of the outer movable seat 801. The other ends of the plurality of outer pushing rods 803 are rotatably connected to the outer rotating seat 804. The outer rotating seat 804 is slidably connected to the outer wall of the positioning rod 701. The cylinder 1 is pushed to move by the cylinder. At this time, one end of the cylinder 1 contacts and squeezes the contact seat 7. At this time, the contact seat 7 drives the positioning rod 701 to slide on the fixed platform 6. Under the movement of the positioning rod 701, the connecting seat 901 and the outer rotating seat 804 are driven to move at the same time. At this time, the outer rotating seat 804 pulls the outer pushing rod 803 to rotate. Under the rotation of the outer pushing rod 803, the outer movable seat 801 slides on the inner wall of the fixed platform 6, driving the plurality of outer positioning clamps 802 to contact the outer wall of the cylinder 1. Under the action of the outer positioning clamp 802, the cylinder 1 is preliminarily limited.

[0066] The contact seat 7 is provided with an inner positioning unit 9.

[0067] The inner positioning unit 9 includes an inner rotating seat 904 that is slidably connected to the positioning rod 701, and a plurality of inner pushing rods 905 are rotatably connected to the outer wall of the inner rotating seat 904, and the other end of the inner pushing rod 905 is rotatably connected to the inner positioning clamp 906, and the plurality of inner positioning clamps 906 are all slidably connected to the inner wall of the contact seat 7. When the inner rotating seat 904 moves relative to the contact seat 7, the inner rotating seat 904 pushes the inner pushing rod 905 to rotate, and the inner positioning clamp 906 and the inner moving seat 907 are pushed to slide on the contact seat 7 by the inner pushing rod 905, and then the plurality of inner positioning clamps 906 contact and squeeze the inner wall of the cylinder 1, thereby performing a second restriction on the cylinder 1. When the cylinder 1 cannot be moved, the cylinder 1 is restricted by the action of the inner positioning clamp 906 and the outer positioning clamp 802, thereby ensuring the stability of the cylinder 1 and effectively avoiding the occurrence of precision errors caused by its vibration during the processing.

[0068] The fixing frame 402 is rotatably connected with an adjusting screw rod 403, which is threadedly connected to the two supporting seats 401. Two sets of thread grooves with different pitches are provided on the adjusting screw rod 403, and the pitch of the first set is twice that of the second set.

[0069] The cylinder barrel 1 is placed in two support seats 401, and the cylinder barrel 1 is supported by the lower fixed seat 502 in the support seat 401. At this time, by rotating the adjusting screw rod 403, one of the support seats 401 is driven to move toward the fixed frame 402, and the other support seat 401 moves the same distance relative to the support seat 401.

[0070] The outer peripheral wall of the adjusting screw rod 403 is slidably connected with a sliding seat 404, and the sliding seat 404 is rotatably connected with two first rotating rods 405. At this time, when the first supporting seat 401 moves relative to the fixing frame 402, the second rotating rod 406 is pushed to rotate. Under the rotation of the second rotating rod 406, the lower fixing seat 502 is pushed to slide on the inner wall of the supporting seat 401. Under the movement of the lower fixing seat 502, the corresponding first rotating rod 405 is pulled to rotate;

[0071] One end of the first rotating rod 405 away from the sliding seat 404 is rotatably connected to the lower fixed seat 502, and one of the first rotating rods 405 is rotatably connected to the second rotating rod 406, and at the same time, the other support seat 401 moves relative to the support seat 401. At this time, the distance between the two support seats 401 changes, and the height of one of the lower fixed seats 502 is limited, which drives the sliding seat 404 to move to a specified position, thereby limiting the rotation angle of the other first rotating rod 405. Since the relative moving distances are the same, the rotation angles of the first rotating rod 405 and the second rotating rod 406 are the same. Under the action of the two first rotating rods 405, the two lower fixed seats 502 are at the same height on the support seat 401. The cylinder 1 is pushed to move by the first rotating rod 405 to adjust the height of the cylinder 1, and the two lower fixed seats 502 move at the same time, so that the adjustment of the cylinder 1 is relatively smooth, which is convenient for adjusting the cylinder 1 to a suitable height.

[0072] The lower fixed seat 502 and the upper fixed seat 501 are slidably connected in the slide groove 504 opened on the inner wall of the support seat 401. A fixed screw rod 503 is threadedly connected on the inner wall of the support seat 401. The fixed screw rod 503 is rotatably connected to the upper fixed seat 501. When the height of the cylinder 1 is adjusted to a suitable position, the upper fixed seat 501 is driven to slide along the slide groove 504 by rotating the fixed screw rod 503. At this time, the upper fixed seat 501 contacts and squeezes the top end face of the cylinder 1, fixes the cylinder 1 in multiple support seats 401, and adjusts its height to a suitable position.

[0073] The upper fixed seat 501 and the lower fixed seat 502 are arranged corresponding to the contact seat 7, and a connecting rod 903 is slidably connected to the contact seat 7. The two ends of the connecting rod 903 are fixedly connected to the connecting seat 901 and the inner rotating seat 904 respectively. The connecting seat 901 is slidably connected to the inner wall of the positioning rod 701, and the connecting seat 901 is fixedly connected to the outer rotating seat 804. Before the cylinder barrel 1 is fixed to the support seat 401, the cylinder barrel 1 is pushed to move by the cylinder. At this time, one end of the cylinder barrel 1 contacts and squeezes the contact seat 7. The contact seat 7 drives the positioning rod 701 to slide on the fixed platform 6. When the positioning rod 701 moves, the connecting seat 901 and the outer rotating seat 804 move at the same time. At this time, the outer rotating seat 804 pulls the outer push rod 803 to rotate. When the outer push rod 803 rotates, the outer movable seat 801 slides on the inner wall of the fixed platform 6, driving multiple outer positioning clamps 802 to contact the outer wall of the cylinder 1. Under the action of the outer positioning clamps 802, the cylinder 1 is preliminarily limited.

[0074] The interior of the positioning rod 701 is fixedly connected to a limit spring 902 , and two ends of the limit spring 902 are fixedly connected to the positioning rod 701 and the connecting seat 901 respectively.

[0075] An inner movable seat 907 is slidably connected to the inner wall of the contact seat 7, and the inner movable seat 907 is fixedly connected to the inner positioning clip 906. A plurality of inner positioning clips 906 and the inner movable seat 907 are evenly distributed on the contact seat 7. At this time, the cylinder 1 continues to move to squeeze the contact seat 7. At this time, the outer rotating seat 804 cannot move, thereby limiting the position of the connecting seat 901. At this time, the contact seat 7 drives the positioning rod 701 to move, so that the positioning rod 701 slides along the connecting seat 901, and at the same time, the connecting seat 901 stretches the limit spring 902;

[0076] At this time, the inner rotating seat 904 moves relative to the contact seat 7, so that the inner rotating seat 904 pushes the inner push rod 905 to rotate, and the inner positioning clamp 906 and the inner movable seat 907 are pushed to slide on the contact seat 7 through the inner push rod 905, and then multiple inner positioning clamps 906 contact and squeeze the inner wall of the positioning groove 203, and the cylinder barrel 1 is positioned through the connection between the inner positioning clamp 906 and the positioning groove 203, and the cylinder barrel 1 is limited at the same time. When the cylinder barrel 1 cannot be moved, the cylinder barrel 1 is limited by the action of the inner positioning clamp 906 and the outer positioning clamp 802, thereby ensuring the stability of the cylinder barrel 1, and cooperating with the positioning groove 203 for positioning, which is convenient for positioning the diverter seat 102 in the cylinder barrel 1 and improving the processing accuracy.

[0077] Working principle: the cylinder 1 is placed in two support seats 401, the lower fixed seat 502 supports the cylinder 1, and the adjusting screw 403 is rotated, one of the support seats 401 moves toward the fixed frame 402, and the other support seat 401 moves the same distance relative to the support seat 401, pushing the second rotating rod 406 and the first rotating rod 405 to rotate. Under the action of the two first rotating rods 405 and the second rotating rod 406, the two lower fixed seats 502 are pushed to the same height on the support seat 401, and the height of the cylinder 1 is adjusted, so that the adjustment of the cylinder 1 is relatively stable, and it is convenient to adjust the cylinder 1 to a suitable height;

[0078] The cylinder 1 is pushed to move by the cylinder, and one end of the cylinder 1 is brought into contact with and squeezed against the contact seat 7, driving the positioning rod 701 to move. At this time, the connecting seat 901 and the outer rotating seat 804 move simultaneously, and the outer pushing rod 803 rotates to drive the outer moving seat 801 to slide on the inner wall of the fixed platform 6, driving multiple outer positioning clamps 802 to contact with the outer wall of the cylinder 1. Under the action of the outer positioning clamps 802, the cylinder 1 is preliminarily limited;

[0079] At this time, the cylinder 1 continues to move and squeezes the contact seat 7. At this time, the outer rotating seat 804 cannot move, and the positioning rod 701 slides along the connecting seat 901. The inner rotating seat 904 pushes the inner push rod 905 to rotate, pushing the inner positioning clamp 906 and the inner movable seat 907 to slide on the contact seat 7, and then multiple inner positioning clamps 906 contact and squeeze the inner wall of the cylinder 1 to limit the cylinder 1 for a second time. When the cylinder 1 cannot be moved, the cylinder 1 is limited by the action of the inner positioning clamp 906 and the outer positioning clamp 802, thereby ensuring the stability of the cylinder 1. At the same time, it cooperates with the positioning groove 203 for positioning, which is convenient for positioning the diverter seat 102 in the cylinder 1 and improving the processing accuracy.

[0080] When the height of the cylinder 1 is adjusted to a suitable position, the upper fixing seat 501 is driven to slide along the slide groove 504 by rotating the fixing screw 503. At this time, the upper fixing seat 501 contacts and squeezes the top end surface of the cylinder 1 to fix the cylinder 1 in the multiple support seats 401.

[0081] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A hydraulic cylinder structure, comprising a cylinder barrel (1) and two oil holes (101) communicating with the inside of the cylinder barrel (1), characterized in that: The cylinder (1) is fixedly connected to a flow diverter seat (102) inside, and the inner wall of the flow diverter seat (102) is provided with a plurality of side flow diverter grooves and a central flow diverter groove, and the plurality of side flow diverter grooves are distributed at equal distances, and sealing units (2) are provided at both ends of the cylinder (1); The sealing unit (2) comprises a positioning seat (201) and an extrusion seat (202); The positioning seat (201) is provided with a positioning groove (203), and the positioning groove (203) corresponds to the side diversion groove on the diversion seat (102). An extrusion spring (206) is fixedly connected between the positioning seat (201) and the extrusion seat (202).

2. The hydraulic cylinder structure according to claim 1, characterized in that: The outer wall of the positioning seat (201) is provided with a fitting seat (204) which is integrated with the positioning groove (203); the fitting seat (204) fits with the inner wall of the extrusion seat (202); the outer wall of the extrusion seat (202) is fixedly connected with a sliding rod (205); the sliding rod (205) is slidably connected with the inner wall of the positioning seat (201).

3. A fixing fixture, comprising the hydraulic cylinder structure of claim 1 or 2, characterized in that: The fixed tooling comprises an adjustment unit (4) and a fixed platform (6) mounted on the grinding machine (3); The adjustment unit (4) comprises two support seats (401) and a fixing frame (402); Two support seats (401) are slidably connected to the grinding machine (3), a fixed frame (402) is fixed to the grinding machine (3), a first rotating rod (405) is rotatably connected between the two support seats (401), and a second rotating rod (406) is rotatably connected between the fixed frame (402) and an adjacent support seat (401); The support seat (401) is provided with a fixing unit (5); The fixing unit (5) comprises an upper fixing seat (501) and a lower fixing seat (502) which are slidably connected to the supporting seat (401); A positioning rod (701) is slidably connected to the inner wall of the fixed platform (6), and a contact seat (7) is fixedly connected to the end of the positioning rod (701); The fixing platform (6) is provided with an external positioning unit (8); The external positioning unit (8) comprises a plurality of external movable seats (801) and external positioning clamps (802) slidably connected to the inner wall of the fixed platform (6); an external push rod (803) is rotatably connected to the outer wall of the external movable seat (801); the other ends of the plurality of external push rods (803) are rotatably connected to an external rotating seat (804); and the external rotating seat (804) is slidably connected to the outer wall of the positioning rod (701); The contact seat (7) is provided with an inner positioning unit (9); The inner positioning unit (9) comprises an inner rotating seat (904) slidably connected to the positioning rod (701); a plurality of inner push rods (905) are rotatably connected to the outer wall of the inner rotating seat (904); the other end of the inner push rod (905) is rotatably connected to an inner positioning clamp (906); and the plurality of inner positioning clamps (906) are all slidably connected to the inner wall of the contact seat (7).

4. The hydraulic cylinder structure fixing tool according to claim 3 is characterized in that: An adjusting screw rod (403) is rotatably connected to the fixing frame (402), and the adjusting screw rod (403) is threadedly connected to the two supporting seats (401).

5. The hydraulic cylinder structure fixing tool according to claim 4, characterized in that: The outer peripheral wall of the adjusting screw rod (403) is slidably connected to a sliding seat (404), and the sliding seat (404) is rotatably connected to two first rotating rods (405).

6. The hydraulic cylinder structure fixing tool according to claim 5, characterized in that: One end of the first rotating rod (405) away from the sliding seat (404) is rotatably connected to the lower fixed seat (502), and one of the first rotating rods (405) is rotatably connected to the second rotating rod (406).

7. The hydraulic cylinder structure fixing tool according to claim 6, characterized in that: The lower fixed seat (502) and the upper fixed seat (501) are slidably connected in a slide groove (504) provided on the inner wall of the support seat (401); a fixing screw rod (503) is threadedly connected on the inner wall of the support seat (401); and the fixing screw rod (503) is rotatably connected to the upper fixed seat (501).

8. The hydraulic cylinder structure fixing tool according to claim 7, characterized in that: The upper fixed seat (501) and the lower fixed seat (502) are arranged corresponding to the contact seat (7); a connecting rod (903) is slidably connected to the contact seat (7); two ends of the connecting rod (903) are respectively fixedly connected to the connecting seat (901) and the inner rotating seat (904); the connecting seat (901) is slidably connected to the inner wall of the positioning rod (701); and the connecting seat (901) is fixedly connected to the outer rotating seat (804).

9. The hydraulic cylinder structure fixing tool according to claim 8, characterized in that: The interior of the positioning rod (701) is fixedly connected to a limit spring (902), and the two ends of the limit spring (902) are respectively fixedly connected to the positioning rod (701) and the connecting seat (901).

10. The hydraulic cylinder structure fixing tool according to claim 9, characterized in that: An inner movable seat (907) is slidably connected to the inner wall of the contact seat (7), and the inner movable seat (907) is fixedly connected to the inner positioning clamp (906). A plurality of the inner positioning clamps (906) and the inner movable seats (907) are distributed at equal distances on the contact seat (7).

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