Hydraulic cylinder block structure and its fixing tooling

Abstract

The present invention discloses a hydraulic cylinder block structure and its fixing tooling, which relates to the field of cylinder block fixing. The hydraulic cylinder block structure and its fixing tooling include a cylinder barrel and two oil holes communicating with the inside of the cylinder barrel, and an adjusting unit and a fixing table installed on a grinding machine. The fixing tooling of the hydraulic cylinder block structure shunts hydraulic oil under the action of a side shunt groove and a central shunt groove in a shunt block; under the rotation of an outer push rod, a plurality of outer positioning clips are driven to contact the outer wall of the cylinder barrel, and under the action of the outer positioning clips, the cylinder barrel is preliminarily limited. The inner push rod is used to push the inner positioning clip and the inner moving seat to slide on the contact seat to perform secondary limitation on the cylinder barrel. When the cylinder barrel cannot be pushed to move, the cylinder barrel is limited under the action of the inner positioning clip and the outer positioning clip, ensuring the stability of the cylinder barrel. At the same time, positioning is carried out in cooperation with a positioning groove, which is convenient for positioning the shunt block in the cylinder barrel and improves the machining accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of cylinder blocks, specifically to a hydraulic cylinder block structure and its fixing tooling. Background Art

[0002] During the processing of a hydraulic cylinder block, an integrally formed hydraulic cylinder block has a more compact structure, reducing the connections and gaps between components, improving the overall stability and reliability of the hydraulic cylinder block. At the same time, due to the reduction of connecting components, the risk of oil leakage is also reduced, improving the working efficiency and service life of the hydraulic cylinder block.

[0003] The interior of the hydraulic cylinder block is divided into two oil cavities, and hydraulic oil is passed through each oil cavity. When the piston moves rapidly towards the baffle, after the pressure-receiving surface of the piston is acted upon by the pressure of the hydraulic oil, a force proportional to the pressure is generated. At this time, under the pressure, the hydraulic oil directly collides with the baffle, and after the collision, the hydraulic oil directly impacts the cylinder wall, there is a risk of cylinder explosion. By arranging a buffer seat in the cylinder body, the hydraulic oil is shunted to avoid impacting the cylinder wall and reducing the pressure on the cylinder body.

[0004] Currently, during the integrally formed processing of a hydraulic cylinder block, the cylinder block raw material is placed on a grinding machine and clamped and fixed, and then the cylinder block raw material is processed by the grinding machine to process the cylinder block raw material into a cylinder block with higher precision. During the processing, in order to ensure the processing precision of the cylinder block, when fixing the cylinder block, the outer wall of the cylinder block raw material is clamped by adjusting a three-jaw fixed clamp, and then the cylinder block is processed by manually adjusting the turning tool. Usually, a support frame is used to support the cylinder block raw material. However, in the prior art, when supporting the cylinder block by the support frame, it is necessary to manually adjust the position of the support frame to adjust the support frame to the central position of the cylinder block raw material to ensure stability during processing. At the same time, the support height of the cylinder block needs to be adjusted. At this time, the heights of different support frames need to be adjusted separately, and the adjustment is inconvenient and it is impossible to ensure that the heights of different support frames are the same. When the cylinder block raw material is supported to a suitable height, the outer wall of the cylinder block is fixed by a three-jaw fixed clamp, and the cylinder block cannot be positioned. During its processing, only the cylinder block is fixed, and then processed manually. In the cylinder block structure of the present application, when processing the hydraulic cylinder block, when the internal shunt seat performs shunt buffering, the corresponding hydraulic rod needs to be installed. When processing the liquid cylinder block, the corresponding processing positioning seat is used. However, when fixing the hydraulic cylinder block, it is impossible to correspond to the positioning seat for specified positioning, resulting in the need for manual positioning during the processing, with poor positioning accuracy and high positioning difficulty, which is not conducive to processing. Therefore, we propose a hydraulic cylinder block structure and its fixing tooling. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a hydraulic cylinder block structure and its fixing tooling, which solves the problems that after the pressure-receiving surface of the piston is subjected to the pressure of hydraulic oil, the hydraulic oil directly collides with the baffle, and after the collision, the hydraulic oil directly impacts the cylinder wall; when adjusting the support height of the cylinder block, it is necessary to adjust the heights of different support frames respectively, which is inconvenient to adjust and cannot ensure that the heights of different support frames are the same; when the cylinder block raw material is supported to a suitable height, the outer wall of the cylinder block is fixed by a three-jaw fixed clamp, but the cylinder block cannot be positioned. When installing the internal shunt seat corresponding to the hydraulic rod during processing, and when processing the liquid cylinder block, the corresponding processing positioning seat is used, but when fixing the hydraulic cylinder block, it cannot correspond to the positioning seat for specified positioning, resulting in the need for manual positioning during the processing, with poor positioning accuracy and high positioning difficulty, which is not conducive to processing.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: The hydraulic cylinder block structure and its fixing tooling include a cylinder barrel and two oil holes connected to the inside of the cylinder barrel. A shunt seat is fixedly connected inside the cylinder barrel. Multiple side shunt grooves and a central shunt groove are provided on the inner wall of the shunt seat. The multiple side shunt grooves are equidistantly distributed. Sealing units are provided at both ends of the cylinder barrel.

[0007] The sealing unit includes a positioning seat integrated with the cylinder barrel and a pressing seat slidably connected to the cylinder barrel. A positioning groove is provided on the positioning seat, and the positioning groove corresponds to the distribution of the side shunt grooves on the shunt seat. A compression spring is fixedly connected between the positioning seat and the pressing seat.

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

[0009] Preferably, it includes an adjusting unit and a fixing table installed on a grinding machine.

[0010] The adjusting unit includes two support seats slidably connected to the grinding machine and a fixing frame fixed to the grinding machine. A first rotating rod is rotatably connected between the two support seats. A second rotating rod is rotatably connected between the fixing frame and the adjacent support seat.

[0011] A fixing unit is provided on the support seat.

[0012] The fixing unit includes an upper fixing seat and a lower fixing seat slidably connected to the support seat.

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

[0014] An outer positioning unit is provided on the fixing table.

[0015] The outer positioning unit includes a plurality of outer moving seats and outer positioning clips that are slidably connected to the inner wall of the fixed table. An outer push rod is rotatably connected to the outer wall of the outer moving seat. The other ends of the plurality of outer push rods are rotatably connected to an outer rotating seat, and the outer rotating seat is slidably connected to the outer wall of the positioning rod;

[0016] An inner positioning unit is provided on the contact seat,

[0017] The inner positioning unit includes an inner rotating seat that is 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 ends of the inner push rods are rotatably connected to inner positioning clips, and the plurality of inner positioning clips are all slidably connected to the inner wall of the contact seat.

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

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

[0020] Preferably, the end of the first rotating rod away from the sliding seat is rotatably connected to the lower fixing 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 chute provided in the inner wall of the support seat, and a fixing screw rod is threadedly connected to the inner wall of the support seat. The fixing screw rod is rotatably connected to the upper fixing seat.

[0022] Preferably, the upper fixing seat and the lower fixing seat are arranged corresponding to the contact seat. A connecting rod is slidably connected to the contact seat. The two ends of the connecting rod are respectively fixedly connected to the connecting seat and the inner rotating seat. 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 limiting spring is fixedly connected to the inside of the positioning rod, and the two ends of the limiting spring are respectively fixedly connected to the positioning rod and the connecting seat.

[0024] Preferably, an inner moving seat is slidably connected to the inner wall of the contact seat. The inner moving seat is fixedly connected to the inner positioning clip, and the plurality of inner positioning clips and the inner moving seat are equidistantly distributed on the contact seat.

[0025] Place the cylinder barrel in the two support seats. The lower fixed seat supports the cylinder barrel. Rotate the adjusting screw rod. One of the support seats moves towards the fixed frame, and the other support seat moves the same distance relative to this support seat, pushing the second rotating rod and the first rotating rod to rotate. Under the action of the two first rotating rods and the second rotating rod, the two lower fixed seats are pushed to have the same height on the support seats, adjusting the height of the cylinder barrel.

[0026] Push the cylinder barrel to move through the air cylinder. One end of the cylinder barrel contacts and presses against the contact seat, driving the positioning rod to move. At this time, the connecting seat and the outer rotating seat move simultaneously. The outer push rod rotates to drive the outer moving seat to slide on the inner wall of the fixed table, driving multiple outer positioning clips to contact the outer wall of the cylinder barrel. Under the action of the outer positioning clips, the cylinder barrel is preliminarily limited.

[0027] At this time, the cylinder barrel continues to move, pressing against the contact seat. At this time, the outer rotating seat cannot move, and the positioning rod slides along the connecting seat. The inner rotating seat pushes the inner push rod to rotate, pushing the inner positioning clip and the inner moving seat to slide on the contact seat. Furthermore, multiple inner positioning clips contact and press against the inner wall of the cylinder barrel, performing secondary limitation on the cylinder barrel.

[0028] When the height of the cylinder barrel is adjusted to the appropriate position, at this time, by rotating the fixed screw rod, the upper fixed seat is driven to slide along the chute. At this time, the upper fixed seat contacts and presses against the top end face of the cylinder barrel, fixing the cylinder barrel in the multiple support seats.

[0029] The present invention discloses a hydraulic cylinder body structure and its fixing tooling, and the beneficial effects thereof are as follows:

[0030] 1. For this hydraulic cylinder body structure and its fixing tooling, when the piston moves rapidly towards the baffle plate direction, after the pressure-receiving surface of the piston is acted upon by the pressure of the hydraulic oil, a force proportional to the pressure is generated. At this time, under the pressure, the hydraulic oil is pushed. At this time, the hydraulic oil is transmitted through the shunt seat. Under the action of the side shunt groove and the central shunt groove in the shunt seat, the hydraulic oil is shunted, effectively avoiding a large impact force of the hydraulic oil on the baffle plate, thereby reducing the impact on the cylinder barrel, protecting the cylinder barrel, and improving the service life of the cylinder barrel.

[0031] 2. For this hydraulic cylinder body structure and its fixing tooling, push the cylinder barrel to move through the air cylinder. At this time, one end of the cylinder barrel contacts and presses against the contact seat. At this time, the contact seat drives the positioning rod to slide on the fixed table. Under the movement of the positioning rod, the connecting seat and the outer rotating seat move simultaneously. At this 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 table, driving multiple outer positioning clips to contact the outer wall of the cylinder barrel. Under the action of the outer positioning clips, the cylinder barrel is preliminarily limited.

[0032] 3. For this hydraulic cylinder block 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. The inner push rod then pushes the inner positioning clamp and the inner moving seat to slide on the contact seat. As a result, multiple inner positioning clamps contact and press against the inner wall of the cylinder barrel, providing a secondary limitation to the cylinder barrel. When the pushing cylinder barrel cannot move, under the action of the inner positioning clamp and the outer positioning clamp, the cylinder barrel is limited, ensuring the stability of the cylinder barrel. At the same time, positioning is carried out in cooperation with the positioning groove, facilitating the positioning of the flow dividing seat in the cylinder barrel 1 and improving the processing accuracy.

[0033] For this hydraulic cylinder block structure and its fixing tooling, under the rotation of the adjusting screw rod, one of the support seats is driven to move towards the fixing frame, and the other support seat moves the same distance relative to this support seat. Since the relative moving 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 fixing seats have the same height on the support seat. The cylinder barrel is pushed to move by the first rotating rod to adjust the height of the cylinder barrel. Moreover, the two lower fixing seats move simultaneously, making the adjustment of the cylinder barrel relatively stable and facilitating the adjustment of the cylinder barrel to an appropriate height. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

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

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

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

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

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

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

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

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

[0043] Figure 9 Schematic diagram of the external positioning unit structure of the present invention;

[0044] Figure 10 Schematic diagram of the internal positioning unit structure of the present invention;

[0045] Figure 11 Enlarged view of a partial structure of the internal positioning unit of the present invention.

[0046] In the figure: 1. Cylinder barrel; 101. Oil hole; 102. Shunt seat; 2. Sealing unit; 201. Positioning seat; 202. Extrusion seat; 203. Positioning groove; 204. Fitting seat; 205. Slide bar; 206. Extrusion spring; 3. Grinder; 4. Adjusting unit; 401. Support seat; 402. Fixed frame; 403. Adjusting screw rod; 404. Sliding seat; 405. First rotating rod; 406. Second rotating rod; 5. Fixing unit; 501. Upper fixing seat; 502. Lower fixing seat; 503. Fixing screw rod; 504. Chute; 6. Fixed table; 7. Contact seat; 701. Positioning rod; 8. External positioning unit; 801. External moving seat; 802. External positioning clamp; 803. External push rod; 804. External rotating seat; 9. Internal positioning unit; 901. Connecting seat; 902. Limiting spring; 903. Connecting rod; 904. Internal rotating seat; 905. Internal push rod; 906. Internal positioning clamp; 907. Internal moving seat. Specific embodiments

[0047] To make the objectives, 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. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0048] Embodiments of the present application provide a hydraulic cylinder block structure and its fixing tooling, which solve the problems that after the pressure-receiving surface of the piston is subjected to the pressure of hydraulic oil, the hydraulic oil directly collides with the baffle, and after the collision, the hydraulic oil directly impacts the cylinder wall; when adjusting the support height of the cylinder block, it is necessary to adjust the heights of different support frames respectively, which is inconvenient to adjust and cannot ensure that the heights of different support frames are the same; when the cylinder block raw material is supported to a suitable height, the outer wall of the cylinder block is fixed by a three-jaw fixing clamp, and the cylinder block cannot be positioned. When it is processed, the internal flow dividing seat 102 is installed corresponding to the hydraulic rod. When processing the liquid cylinder block, it corresponds to the processing positioning seat 201, but when fixing the hydraulic cylinder block, it cannot correspond to the positioning seat 201 for specified positioning, resulting in the need for manual positioning during the processing, with poor positioning accuracy and high positioning difficulty, which is not conducive to processing. It is realized that when the piston moves rapidly towards the baffle, after the pressure-receiving surface of the piston is subjected to the pressure of hydraulic oil, a force proportional to the pressure is generated. At this time, under the pressure, the hydraulic oil is pushed, and the hydraulic oil is transmitted through the flow dividing seat 102. Under the action of the side flow dividing groove and the central flow dividing groove in the flow dividing seat 102, the hydraulic oil is divided, effectively avoiding a large impact force of the hydraulic oil on the baffle, thereby reducing the impact on the cylinder barrel 1 and protecting the cylinder barrel 1, and increasing the service life of the cylinder barrel 1;

[0049] Under the rotation of the adjusting screw rod 403, one of the support seats 401 is driven to move towards the fixing frame 402, and the other support seat 401 moves the same distance relative to this support 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 fixing seats 502 have 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, and the two lower fixing seats 502 move simultaneously, making the adjustment of the cylinder barrel 1 relatively stable and facilitating the adjustment of the cylinder barrel 1 to a suitable height;

[0050] The cylinder barrel 1 is pushed to move by the air cylinder. At this time, one end of the cylinder barrel 1 contacts and presses against the contact seat 7. At this time, the contact seat 7 drives the positioning rod 701 to slide on the fixing table 6. Under the movement of the positioning rod 701, the connecting seat 901 and the outer rotating seat 804 are driven to move simultaneously. At this time, the outer rotating seat 804 pulls the outer push rod 803 to rotate. Under the rotation of the outer push rod 803, the outer moving seat 801 slides on the inner wall of the fixing table 6, driving multiple outer positioning clamps 802 to contact the outer wall of the cylinder barrel 1. Under the action of the outer positioning clamps 802, the cylinder barrel 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. The inner push rod 905 pushes the inner positioning clamp 906 and the inner moving seat 907 to slide on the contact seat 7. Then, multiple inner positioning clamps 906 contact and press against the inner wall of the cylinder barrel 1, performing secondary limitation on the cylinder barrel 1. When the pushing cylinder barrel 1 cannot move, under the action of the inner positioning clamps 906 and the outer positioning clamps 802, the cylinder barrel 1 is limited, ensuring the stability of the cylinder barrel 1 and effectively avoiding the occurrence of errors in precision caused by vibration during the processing.

[0052] To better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the drawings in the specification and specific implementation manners.

[0053] The embodiment of the present invention discloses a hydraulic cylinder body structure and its fixing tooling.

[0054] According to the attached Figure 1 and Figure 2 shown, it includes a cylinder barrel 1 and two oil holes 101 communicating with the inside of the cylinder barrel 1. A flow dividing seat 102 is fixedly connected inside the cylinder barrel 1. Multiple side flow dividing grooves and a central flow dividing groove are provided on the inner wall of the flow dividing seat 102. The multiple side flow dividing grooves are equidistantly distributed. Sealing units 2 are provided at both ends of the cylinder barrel 1.

[0055] When the piston moves rapidly towards the baffle, after the pressure receiving surface of the piston is acted on by the pressure of the hydraulic oil, a force proportional to the pressure is generated. At this time, under the pressure, the hydraulic oil is pushed. At this time, the hydraulic oil is transmitted through the flow dividing seat 102. Under the action of the side flow dividing grooves and the central flow dividing groove in the flow dividing seat 102, the hydraulic oil is divided, effectively avoiding a large impact force of the hydraulic oil on the baffle, thereby reducing the impact on the cylinder barrel 1 and protecting the cylinder barrel 1, and increasing the service life of the cylinder barrel 1.

[0056] The sealing unit 2 includes a positioning seat 201 integrated with the cylinder barrel 1 and a pressing seat 202 slidably connected to the cylinder barrel 1. A positioning groove 203 is provided on the positioning seat 201, and the positioning groove 203 is distributed corresponding to the side flow dividing grooves on the flow dividing seat 102. A pressing spring 206 is fixedly connected between the positioning seat 201 and the pressing seat 202.

[0057] On the outer wall of the positioning seat 201, there is a fitting seat 204 integrated with the positioning groove 203. The fitting seat 204 is in contact with the inner wall of the extrusion seat 202. On the outer wall of the extrusion seat 202, a sliding rod 205 is fixedly connected. The sliding rod 205 is slidably connected to the inner wall of the positioning seat 201. On the outer walls on both sides of the cylinder barrel 1, thread grooves are provided, and the cylinder head is installed through the thread grooves for connecting the piston rod to the cylinder barrel 1. When the piston rod is inserted into the cylinder barrel 1, by arranging a plug-in block on the piston rod, the plug-in block is slidably connected in the positioning groove 203 to limit the installation position of the piston rod, so that the piston rod is arranged corresponding to the flow dividing seat 102, which is convenient for matching use;

[0058] When installing the cylinder head, the cylinder head contacts and presses against the extrusion seat 202. At this time, the extrusion seat 202 pushes the sliding rod 205 to move, so that the sliding rod 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 presses against the cylinder head to seal the cylinder head, which is convenient for the sealing between the cylinder head and the cylinder barrel 1, improves the overall sealing performance of the hydraulic cylinder, and ensures its service performance.

[0059] According to Attachment Figure 3 -11 shown, it includes an adjusting unit 4 and a fixing table 6 installed on the grinding machine 3,

[0060] The adjusting unit 4 includes two support seats 401 slidably connected to the grinding machine 3 and a fixing frame 402 fixed on the grinding machine 3. A first rotating rod 405 is rotatably connected between the two support seats 401. A second rotating rod 406 is rotatably connected between the fixing frame 402 and the adjacent support seat 401. When the adjusting screw rod 403 rotates, it drives one of the support seats 401 to move towards the fixing frame 402, and the other support seat 401 moves the same distance relative to this support 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 fixing seats 502 have the same height on the support seats 401. The cylinder barrel 1 is pushed by the first rotating rod 405 to adjust the height of the cylinder barrel 1, and the two lower fixing seats 502 move simultaneously, making the adjustment of the cylinder barrel 1 relatively stable and facilitating the adjustment of the cylinder barrel 1 to a suitable height;

[0061] A fixing unit 5 is provided on the support seat 401,

[0062] The fixing unit 5 includes an upper fixing seat 501 and a lower fixing seat 502 slidably connected to the support seat 401. When the height of the cylinder barrel 1 is adjusted to a suitable position, at this time, by rotating the fixing screw rod 503, the upper fixing seat 501 is driven to slide along the sliding groove 504. At this time, the upper fixing seat 501 contacts and presses against the top end face of the cylinder barrel 1 to fix the cylinder barrel 1 in the multiple support seats 401 and adjust its height to a suitable position;

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

[0064] An external positioning unit 8 is provided on the fixed table 6,

[0065] The external positioning unit 8 includes a plurality of external moving seats 801 and external positioning clips 802 slidably connected to the inner wall of the fixed table 6. An external push rod 803 is rotatably connected to the outer wall of the external moving seat 801. The other ends of the plurality of external push rods 803 are rotatably connected to an external rotating seat 804. The external rotating seat 804 is slidably connected to the outer wall of the positioning rod 701. By pushing the cylinder barrel 1 with a cylinder, at this time, one end of the cylinder barrel 1 contacts and presses against the contact seat 7. At this time, the contact seat 7 drives the positioning rod 701 to slide on the fixed table 6. Under the movement of the positioning rod 701, the connecting seat 901 and the external rotating seat 804 are simultaneously moved. At this time, the external rotating seat 804 pulls the external push rod 803 to rotate. Under the rotation of the external push rod 803, the external moving seat 801 slides on the inner wall of the fixed table 6, driving the plurality of external positioning clips 802 to contact the outer wall of the cylinder barrel 1. Under the action of the external positioning clips 802, the cylinder barrel 1 is preliminarily limited;

[0066] An internal positioning unit 9 is provided on the contact seat 7,

[0067] The internal positioning unit 9 includes an internal rotating seat 904 slidably connected to the positioning rod 701. A plurality of internal push rods 905 are rotatably connected to the outer wall of the internal rotating seat 904. The other ends of the internal push rods 905 are rotatably connected to internal positioning clips 906. The plurality of internal positioning clips 906 are all slidably connected to the inner wall of the contact seat 7. When the internal rotating seat 904 moves relative to the contact seat 7, the internal rotating seat 904 pushes the internal push rods 905 to rotate. Through the internal push rods 905, the internal positioning clips 906 and the internal moving seat 907 are pushed to slide on the contact seat 7. Furthermore, the plurality of internal positioning clips 906 contact and press against the inner wall of the cylinder barrel 1, performing secondary limitation on the cylinder barrel 1. When the cylinder barrel 1 cannot be pushed to move, under the action of the internal positioning clips 906 and the external positioning clips 802, the cylinder barrel 1 is limited, ensuring the stability of the cylinder barrel 1 and effectively avoiding the situation where the accuracy is affected by vibration during the processing.

[0068] An adjusting screw rod 403 is rotatably connected to the fixing frame 402. The adjusting screw rod 403 is threadedly connected to the two support 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] Place the cylinder barrel 1 in the two support seats 401, and support the cylinder barrel 1 through the lower fixed seat 502 in the support seat 401. At this time, by rotating the adjusting screw rod 403, under the rotation of the adjusting screw rod 403, one of the support seats 401 is driven to move towards the fixed frame 402, and the other support seat 401 moves the same distance relative to this support seat 401.

[0070] A sliding seat 404 is slidably connected to the outer peripheral wall of the adjusting screw rod 403. The sliding seat 404 is rotatably connected to the two first rotating rods 405. At this time, when the first support seat 401 moves relative to the fixed frame 402, it pushes the second rotating rod 406 to rotate. Under the rotation of the second rotating rod 406, it pushes the lower fixed seat 502 to slide on the inner wall of the support seat 401. Under the movement of this lower fixed seat 502, it pulls the corresponding first rotating rod 405 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. One of the first rotating rods 405 is rotatably connected to the second rotating rod 406. At the same time, the other support seat 401 moves relative to this 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, driving the sliding seat 404 to move to a specified position, and then 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 heights of the two lower fixed seats 502 on the support seat 401 are the same. The cylinder barrel 1 is pushed to move by the first rotating rod 405 to adjust the height of the cylinder barrel 1, and the two lower fixed seats 502 move simultaneously, making the adjustment of the cylinder barrel 1 relatively stable and facilitating the adjustment of the cylinder barrel 1 to an appropriate height.

[0072] The lower fixed seat 502 and the upper fixed seat 501 are slidably connected in the chute 504 opened on the inner wall of the support seat 401. A fixed screw rod 503 is threadedly connected to 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 barrel 1 is adjusted to an appropriate position, at this time, by rotating the fixed screw rod 503, the upper fixed seat 501 is driven to slide along the chute 504. At this time, the upper fixed seat 501 contacts and presses against the top end surface of the cylinder barrel 1, fixing the cylinder barrel 1 in the multiple support seats 401 and adjusting its height to an appropriate position.

[0073] 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. Both 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. The connecting seat 901 is fixedly connected to the outer rotating seat 804. Before fixing the cylinder barrel 1 to the support seat 401, the cylinder barrel 1 is pushed to move by a cylinder. At this time, one end of the cylinder barrel 1 contacts and presses the contact seat 7. At this time, the contact seat 7 drives the positioning rod 701 to slide on the fixed table 6. Under the movement of the positioning rod 701, the connecting seat 901 and the outer rotating seat 804 are driven to move simultaneously. At this time, the outer rotating seat 804 pulls the outer push rod 803 to rotate. Under the rotation of the outer push rod 803, the outer moving seat 801 slides on the inner wall of the fixed table 6, driving a plurality of outer positioning clips 802 to contact the outer wall of the cylinder barrel 1. Under the action of the outer positioning clips 802, the cylinder barrel 1 is preliminarily limited.

[0074] A limiting spring 902 is fixedly connected inside the positioning rod 701. Both ends of the limiting spring 902 are fixedly connected to the positioning rod 701 and the connecting seat 901 respectively.

[0075] An inner moving seat 907 is slidably connected to the inner wall of the contact seat 7. The inner moving seat 907 is fixedly connected to the inner positioning clip 906. A plurality of inner positioning clips 906 and the inner moving seat 907 are equidistantly distributed on the contact seat 7. At this time, the cylinder barrel 1 continues to move and presses 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, making the positioning rod 701 slide along the connecting seat 901. At the same time, the connecting seat 901 stretches the limiting spring 902;

[0076] At this time, the inner rotating seat 904 moves relative to the contact seat 7, making the inner rotating seat 904 push the inner push rod 905 to rotate. Through the inner push rod 905, the inner positioning clip 906 and the inner moving seat 907 are pushed to slide on the contact seat 7. Then, a plurality of inner positioning clips 906 contact and press the inner wall of the positioning groove 203. Through the connection between the inner positioning clip 906 and the positioning groove 203, the cylinder barrel 1 is positioned, and the cylinder barrel 1 is secondarily limited. When the cylinder barrel 1 cannot be pushed to move, under the action of the inner positioning clip 906 and the outer positioning clip 802, the cylinder barrel 1 is limited, ensuring the stability of the cylinder barrel 1. At the same time, it is positioned in cooperation with the positioning groove 203, facilitating the positioning of the flow dividing seat 102 in the cylinder barrel 1 and improving the processing accuracy.

[0077] Working principle: Place the cylinder barrel 1 in two support seats 401. The lower fixed seat 502 supports the cylinder barrel 1. Rotate the adjusting screw rod 403. One of the support seats 401 moves towards the fixed frame 402, and the other support seat 401 moves the same distance relative to this 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 have the same height on the support seats 401, adjusting the height of the cylinder barrel 1, making the adjustment of the cylinder barrel 1 relatively stable and facilitating the adjustment of the cylinder barrel 1 to an appropriate height;

[0078] Push the cylinder barrel 1 to move through the air cylinder. One end of the cylinder barrel 1 contacts and presses 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. The outer push rod 803 rotates to drive the outer moving seat 801 to slide on the inner wall of the fixed table 6, driving multiple outer positioning clips 802 to contact the outer wall of the cylinder barrel 1. Under the action of the outer positioning clips 802, the cylinder barrel 1 is preliminarily limited;

[0079] At this time, the cylinder barrel 1 continues to move and presses against 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, driving the inner positioning clip 906 and the inner moving seat 907 to slide on the contact seat 7. Furthermore, multiple inner positioning clips 906 contact and press against the inner wall of the cylinder barrel 1, performing secondary limitation on the cylinder barrel 1. When the cylinder barrel 1 cannot be pushed to move, under the action of the inner positioning clips 906 and the outer positioning clips 802, the cylinder barrel 1 is limited, ensuring the stability of the cylinder barrel 1. At the same time, it cooperates with the positioning groove 203 for positioning, facilitating the positioning of the flow dividing seat 102 in the cylinder barrel 1 and improving the processing accuracy.

[0080] When the height of the cylinder barrel 1 is adjusted to an appropriate position, at this time, by rotating the fixed screw rod 503, the upper fixed seat 501 is driven to slide along the sliding groove 504. At this time, the upper fixed seat 501 contacts and presses against the top end face of the cylinder barrel 1, fixing the cylinder barrel 1 in the multiple support seats 401.

[0081] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixing fixture for a hydraulic cylinder structure, characterized in that: The fixed fixture includes an adjustment unit (4) and a fixed table (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), and a second rotating rod (406) is rotatably connected between the fixed frame (402) and the adjacent support seats (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) slidably connected to the support seat (401); A positioning rod (701) is slidably connected to the inner wall of the fixed platform (6), and the end of the positioning rod (701) is fixedly connected to a contact seat (7); An external positioning unit (8) is provided on the fixing platform (6); The external positioning unit (8) includes 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); An inner positioning unit (9) is provided on the contact seat (7); 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) rotatably connected to the outer wall of the inner rotating seat (904), an inner positioning clamp (906) rotatably connected to the other end of the inner push rod (905), and the plurality of inner positioning clamps (906) are all slidably connected to the inner wall of the contact seat (7); The fixing frame (402) is rotatably connected to an adjusting screw rod (403); One end of the first rotating rod (405) is rotatably connected to the sliding seat (404), and the other end is rotatably connected to the lower fixed seat (502).

2. A fixing fixture for a hydraulic cylinder structure according to claim 1, characterized in that: The adjusting screw rod (403) is threadedly connected to the two support seats (401).

3. A fixing fixture for a hydraulic cylinder structure according to claim 2, characterized in that: The outer peripheral wall of the adjusting screw rod (403) is slidably connected to a sliding seat (404).

4. A fixing fixture for a hydraulic cylinder structure according to claim 3, 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).

5. The fixing fixture for a hydraulic cylinder structure according to claim 4, characterized in that: The lower fixed seat (502) and the upper fixed seat (501) are slidably connected in a sliding groove (504) provided 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); and the fixed screw rod (503) is rotatably connected to the upper fixed seat (501).

6. A fixing fixture for a hydraulic cylinder structure according to claim 5, characterized in that: 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), and 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).

7. A fixing fixture for a hydraulic cylinder structure according to claim 6, characterized in that: The interior of the positioning rod (701) is fixedly connected to a limit spring (902), and both ends of the limit spring (902) are fixedly connected to the positioning rod (701) and the connecting seat (901), respectively.

8. The fixing fixture for a hydraulic cylinder structure according to claim 7, 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).

9. A hydraulic cylinder structure, mounted on a fixing fixture for a hydraulic cylinder structure according to claim 1, comprising a cylinder barrel (1) and two oil holes (101) communicating with the interior of the cylinder barrel (1), characterized in that: A diverter seat (102) is fixedly connected to the interior of the cylinder (1), and a plurality of side diverter grooves and a central diverter groove are provided on the inner wall of the diverter seat (102), wherein the plurality of side 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); A positioning groove (203) is provided on the positioning seat (201), 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).

10. The hydraulic cylinder structure according to claim 9, 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), and 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), and the sliding rod (205) is slidably connected with the inner wall of the positioning seat (201).

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