Special tool equipment for hot charging of piston rod shaft head

Abstract

The utility model relates to special tool equipment for hot charging of a piston rod shaft head, and relates to the technical field of tool equipment. The assembling device comprises a tool table, an assembling table movably arranged on the tool table, a fixed frame fixed to the assembling table, a movable gear rotationally arranged in the fixed frame, a movable frame movably arranged on the assembling table, a lifting assembly used for conducting lifting adjustment on the assembling table, and a translation assembly used for conducting translation driving on the movable frame. The rotating assembly is used for driving the movable gear to rotate; the clamping assembly is used for clamping a piston rod shaft head; the lifting assembly comprises two threaded blocks fixed to the assembling table, two threaded rods rotationally arranged on the tool table and a lifting piece used for synchronously lifting the two threaded blocks, and the two threaded rods are in threaded connection with the two threaded blocks correspondingly. The purpose that the height of the tool equipment is convenient to adjust is achieved, an operator does not need to spend energy to adapt to the height of the equipment, and piston rod shaft heads can be conveniently and rapidly fed.

Description

Technical Field

[0001] This application relates to the technical field of tooling equipment, and in particular to a special tooling equipment for hot-fitting piston rod shaft heads. Background Technology

[0002] The piston rod is the connecting component that supports the piston in doing work. It is mostly used in hydraulic cylinders and pneumatic cylinders. It is a moving component with frequent movement and high technical requirements. The shaft end also refers to the two ends of the shaft. The shaft is a mechanical part that supports rotating parts and rotates with them to transmit motion, torque or bending moment.

[0003] During the processing and assembly of hot-fitted piston rod heads, specialized tooling equipment is usually required to clamp and fix the piston rod heads to prevent them from shaking or shifting during assembly. For example, Chinese patent CN213917125U discloses a tooling equipment for deep groove bearing production, which is advantageous for clamping and fixing the bearing rings to be processed, facilitating subsequent processing and assembly of other parts. Furthermore, it uses two V-shaped concave surfaces as clamping contact surfaces, which can clamp and fix bearing rings of different specifications.

[0004] Regarding the aforementioned technologies, the inventors believe that the following drawbacks exist: To ensure the stability of piston rod head assembly, precise positioning of the piston rod head is usually required. However, existing tooling equipment has the disadvantage of being inconvenient to adjust in height, causing operators to spend extra time and effort to adapt to the equipment height, such as frequently bending over, raising their feet, or using other auxiliary tools to reach a suitable operating position. Moreover, when the piston rod head is too large, operators also need to laboriously lift the piston rod head onto the tooling equipment for clamping and assembly, which is inconvenient for quick loading of the piston rod head, increases the complexity and difficulty of equipment operation, affects the efficiency of piston rod head assembly, and fails to meet the needs of operators. Utility Model Content

[0005] To address the drawback of tooling equipment that is difficult to adjust in height, which forces operators to spend extra time and effort to adapt to the equipment height, such as frequently bending over, raising their feet, or using other auxiliary tools to reach a suitable operating position, this application provides a special tooling equipment for hot-fitting piston rod shaft heads.

[0006] The special tooling equipment for hot-fitting piston rod shaft heads provided in this application adopts the following technical solution:

[0007] A special tooling device for hot-fitting piston rod shaft heads includes a tooling table, an assembly table movably mounted on the tooling table, a fixed frame fixed on the assembly table, a movable gear rotatably mounted in the fixed frame, a movable frame movably mounted on the assembly table, a lifting assembly for adjusting the height of the assembly table, a translation assembly for driving the translation of the movable frame, a rotation assembly for driving the rotation of the movable gear, and a clamping assembly for clamping the piston rod shaft head.

[0008] The lifting assembly includes two threaded blocks fixed on the assembly platform, two threaded rods rotatably mounted on the tooling platform, and a lifting component for synchronously lifting the two threaded blocks. The two threaded rods are threadedly connected to the two threaded blocks respectively.

[0009] The clamping assembly includes two clamping blocks respectively movably disposed within the movable gear and the movable frame, and a clamping member for moving the two clamping blocks relative to or opposite to each other.

[0010] By adopting the above technical solution, the lifting component can drive the assembly platform, fixed frame, and movable frame to move up and down, thereby adjusting the height of the assembly platform. The assembly platform can be adjusted according to the operator's height and needs, allowing operators of different heights to use the assembly platform to assemble and process the piston rod shaft head. The clamping component can clamp and fix the piston rod shaft head, preventing shaking or displacement during assembly and ensuring the stability of the piston rod shaft head assembly. The translation component can translate the movable frame and piston rod, thereby assembling the cylinder and piston rod together. The rotation component can rotate the movable gear and cylinder, thereby adjusting the angle of the cylinder. Furthermore, by using the mounting holes and protrusions on the cylinder and piston rod, the position between the cylinder and piston rod can be precisely controlled, ensuring alignment of the holes or protrusions on the cylinder and piston rod, thus facilitating the smooth installation of related components and ensuring the accuracy of the cylinder and piston rod assembly.

[0011] Optionally, the lifting component includes two first bevel gears and two second bevel gears rotatably mounted on the tooling table, and a bidirectional motor fixed on the tooling table. The two threaded rods are respectively coaxially fixed with the two second bevel gears, the two first bevel gears are respectively meshed with the two second bevel gears, and the two first bevel gears are respectively connected to the two output ends of the bidirectional motor.

[0012] By adopting the above technical solution, the lifting component can adjust the height of the assembly platform. The height of the assembly platform can be adjusted according to the needs of the operator. The bidirectional motor can drive two first bevel gears, two second bevel gears and two threaded rods to rotate respectively. When the two threaded rods rotate, they can drive two threaded blocks to rise and fall, thereby driving the assembly platform, fixed frame and movable frame to move up and down, and the height of the assembly platform can be adjusted.

[0013] Optionally, the translation component includes an electric push rod and a dovetail plate fixed on the assembly platform. The movable frame is fixedly connected to the output end of the electric push rod. A dovetail groove is provided on the movable frame, and the dovetail plate is slidably connected to the dovetail groove.

[0014] By adopting the above technical solution, the translation component can adjust the movable frame and piston rod to facilitate the assembly of the hydraulic cylinder and piston rod. The electric push rod can sequentially drive the movable frame, the right bidirectional screw, the right movable handle, the two right clamping blocks, the right guide rod and the right piston rod to translate, thereby splicing the hydraulic cylinder and piston rod together and achieving the purpose of rapid assembly of the hydraulic cylinder and piston rod.

[0015] Optionally, the rotating assembly includes a transmission gear rotatably disposed within a fixed frame and a motor fixed to the fixed frame. The transmission gear meshes with a movable gear, and the transmission gear is connected to the output end of the motor.

[0016] By adopting the above technical solution, the rotating assembly can adjust the rotation of the transmission gear and the hydraulic cylinder, ensuring the accuracy of the assembly of the hydraulic cylinder and the piston rod. The electric motor can sequentially drive the transmission gear, the movable gear, the left double-acting screw, the left movable handle, the two left clamping blocks, the left guide rod and the hydraulic cylinder to rotate, thereby adjusting the rotation angle of the hydraulic cylinder. The hydraulic cylinder can be adjusted according to the position between some mounting holes and protrusions on the hydraulic cylinder and the piston rod.

[0017] Optionally, the clamping component includes a bidirectional screw rotatably disposed within a movable gear and a movable frame, and a movable handle fixed to the bidirectional screw. Both clamping blocks are threadedly connected to the bidirectional screw. The outer side of the bidirectional screw has two helical grooves, and the two helical grooves are in opposite directions. The inner side of each of the two clamping blocks has a threaded hole that matches the two helical grooves.

[0018] By adopting the above technical solution, the clamping component can clamp and fix the hydraulic cylinder and piston rod to be assembled, avoiding the phenomenon of displacement of the hydraulic cylinder and piston rod during assembly. The hydraulic cylinder is placed between the two clamping blocks on the left and the piston rod is placed between the two clamping blocks on the right. By rotating the movable handle, the bidirectional screw can be rotated, which can drive the two clamping blocks to move relative to each other. The two clamping blocks on the left can clamp and fix the hydraulic cylinder, and the two clamping blocks on the right can clamp and fix the piston rod, which can clamp and fix hydraulic cylinders and piston rods of different specifications.

[0019] Optionally, guide rods are fixedly connected to the inner sides of the movable gear and the movable frame, and guide holes adapted to the diameter of the guide rods are opened on the inner sides of the two clamping blocks. The two guide holes are slidably connected to the guide rods.

[0020] By adopting the above technical solution, the guide rod can guide and limit the movement of the two clamping blocks. During the movement of the clamping blocks, the guide rod can ensure that the clamping blocks move in a straight line and at the same time share part of the force, making the force on the clamping blocks more uniform.

[0021] Optionally, four guide blocks are fixedly connected to the outer side of the assembly platform, and four guide rails are fixedly connected to the tooling platform. The four guide blocks are slidably connected to the four guide rails respectively.

[0022] By adopting the above technical solution, the stability of the assembly platform's vertical movement can be ensured by setting four guide blocks and four guide rails. The assembly platform can be limited and guided to ensure that the force is evenly distributed when the assembly platform moves up and down. This avoids the assembly platform from shaking or deviating due to uneven force or external interference during the lifting and lowering process. It can also constrain the assembly platform, restricting it to linear movement only in the direction of the guide rails, effectively reducing shaking and deviating, and ensuring that the assembly platform can be lifted and lowered smoothly.

[0023] Optionally, each of the four corners of the bottom of the tooling table is fixedly connected with a caster wheel, each of the four caster wheels is fixedly connected with a brake, and each of the four caster wheels is provided with an anti-slip groove.

[0024] By adopting the above technical solution, the four casters allow operators to easily move the tooling table and assembly table to the designated location for use. The four brakes can fix the four casters respectively, preventing the casters from shaking or shifting when the operator is assembling the piston rod shaft head, thus ensuring the stability of the piston rod shaft head assembly.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. The bidirectional motor can drive two first bevel gears, two second bevel gears, and two threaded rods to rotate, which in turn drives two threaded blocks to rise and fall. This, in turn, drives the assembly table, fixed frame, electric push rod, movable frame, two bidirectional screws, two movable handles, two sets of clamping blocks, and two guide rods to move up and down in sequence. This allows for adjustment of the assembly table's height, which can be adjusted according to the operator's height and the loading and unloading needs of the hydraulic cylinder and piston rod. This ensures that the operator can effectively assemble the hydraulic cylinder and piston rod using the assembly table, achieving the goal of easy height adjustment for the tooling equipment. Operators do not need to spend extra time and effort to adapt to the equipment height, nor do they need to frequently bend over, raise their feet, or use other auxiliary tools to reach a suitable operating position. This facilitates quick loading of the piston rod shaft head, reduces the complexity and difficulty of equipment operation, and improves the efficiency of piston rod shaft head assembly.

[0027] 2. After adjusting the height of the assembly table, place the hydraulic cylinder and piston rod to be assembled on the two sets of clamping blocks respectively. The hydraulic cylinder is placed between the two clamping blocks on the left, and the piston rod is placed between the two clamping blocks on the right. By rotating the movable handle, the double-acting screw can be driven to rotate. When the double-acting screw rotates, it can drive the two clamping blocks to move relative to each other. When the two clamping blocks move relative to each other, they can clamp and fix the hydraulic cylinder. At the same time, the two double-acting screws, two movable handles, two sets of clamping blocks, and two guide rods can clamp and fix the hydraulic cylinder and piston rod respectively. It can clamp and fix hydraulic cylinders and piston rods of different specifications, and can ensure that the hydraulic cylinder and piston rod are aligned and the center positions of the hydraulic cylinder and piston rod are aligned to ensure the efficiency of the subsequent piston rod shaft assembly.

[0028] 3. When the angle of the hydraulic cylinder needs to be adjusted, the electric motor sequentially drives the transmission gear, movable gear, left double-acting screw, left movable handle, two left clamping blocks, left guide rod, and hydraulic cylinder to rotate, thereby adjusting the rotation angle of the hydraulic cylinder. The hydraulic cylinder can be adjusted according to the position of some mounting holes and protrusions on the hydraulic cylinder and piston rod to ensure that the holes or protrusions on the hydraulic cylinder and piston rod are aligned during assembly, ensuring the accuracy of the assembly. After the hydraulic cylinder and piston rod are clamped and the hydraulic cylinder angle is adjusted, when it is necessary to assemble the hydraulic cylinder and piston rod, the electric push rod sequentially drives the movable frame, right double-acting screw, right movable handle, two right clamping blocks, right guide rod, and right piston rod to translate, thereby connecting the hydraulic cylinder and piston rod together. This achieves the purpose of rapid assembly of the hydraulic cylinder and piston rod, reducing the labor intensity of the operator. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0030] Figure 2 The appearance diagram of the tooling table connection structure in the embodiment of this application;

[0031] Figure 3 The external view of the assembly platform connection structure in the embodiments of this application;

[0032] Figure 4 A cross-sectional view of the fixing frame connection structure in an embodiment of this application.

[0033] Reference numerals in the attached drawings: 1. Tooling table; 2. Bidirectional motor; 3. First bevel gear; 4. Second bevel gear; 5. Threaded rod; 6. Threaded block; 7. Assembly table; 8. Fixed frame; 9. Electric push rod; 10. Movable frame; 11. Electric motor; 12. Transmission gear; 13. Movable gear; 14. Bidirectional screw; 15. Movable handle; 16. Clamping block; 17. Guide rod; 18. Guide rail; 19. Guide block; 20. Dovetail plate. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0035] This application discloses a special tooling equipment for heat-fitted piston rod shaft ends, as described in the embodiments below. Figure 1 and Figure 2 The assembly includes a tooling table 1, an assembly table 7 movably mounted on the tooling table 1, a fixed frame 8 fixed on the assembly table 7, a movable gear 13 rotatably mounted within the fixed frame 8, a movable frame 10 movably mounted on the assembly table 7, a lifting assembly for adjusting the height of the assembly table 7, a translation assembly for driving the translation of the movable frame 10, a rotation assembly for driving the rotation of the movable gear 13, and a clamping assembly for clamping the piston rod shaft head. The lifting assembly includes two threaded blocks 6 fixed on the assembly table 7, two threaded rods 5 rotatably mounted on the tooling table 1, and a lifting component for synchronously lifting the two threaded blocks 6. The two threaded rods 5 are threadedly connected to the two threaded blocks 6 respectively. The inner sides of the two threaded blocks 6 are respectively provided with helical holes that are adapted to the outer threads of the two threaded rods 5. The clamping assembly includes two clamping blocks 16 movably mounted within the movable gear 13 and the movable frame 10 respectively, and a clamping component for moving the two clamping blocks 16 relative to or opposite to each other.

[0036] The lifting component includes two first bevel gears 3 and two second bevel gears 4 rotatably mounted on the tooling table 1, and a bidirectional motor 2 fixed on the tooling table 1. Two threaded rods 5 are coaxially fixed with the two second bevel gears 4 respectively. The two first bevel gears 3 mesh with the two second bevel gears 4 respectively. The two first bevel gears 3 are connected to the two output ends of the bidirectional motor 2 respectively. By setting threaded rods 5 and threaded blocks 6 on the left and right sides of the assembly table 7 and driving them through a drive source, the force on the assembly table 7 can be more even when it is lifted. Dual-side drive can avoid the uneven force that may occur when driving on one side, which may cause the tooling table 1 to tilt or shake. At the same time, it can limit the circumferential rotation of the assembly table 7.

[0037] The translation component includes an electric push rod 9 and a dovetail plate 20 fixed on the assembly platform 7. The movable frame 10 is fixedly connected to the output end of the electric push rod 9. A dovetail groove is provided on the movable frame 10. The dovetail plate 20 is slidably connected to the dovetail groove. By setting the dovetail plate 20 and the dovetail groove, the movable frame 10 can be limited, thereby ensuring the stability of the translation of the movable frame 10.

[0038] The rotating assembly includes a transmission gear 12 rotatably disposed within the fixed frame 8 and a motor 11 fixed on the fixed frame 8. The transmission gear 12 meshes with the movable gear 13, and the transmission gear 12 is connected to the output end of the motor 11. An annular groove is provided on the inner side of the fixed frame 8, and the movable gear 13 is rotatably connected to the annular groove. By providing the annular groove, the movable gear 13 can be limited to ensure that the movable gear 13 rotates stably in the fixed frame 8.

[0039] The clamping components include a bidirectional screw 14 rotatably mounted in the movable gear 13 and the movable frame 10, and a movable handle 15 fixed to the bidirectional screw 14. Both clamping blocks 16 are threadedly connected to the bidirectional screw 14. The outer side of the bidirectional screw 14 has two helical grooves, and the two helical grooves are in opposite directions. The inner side of the two clamping blocks 16 is provided with threaded holes that are adapted to the two helical grooves. The threads on the bidirectional screw 14 are self-locking threads. When the bidirectional screw 14 stops rotating, the two clamping blocks 16 will remain in their current positions and will not move easily due to external forces. This self-locking function ensures the stability and safety of clamping the hydraulic cylinder or piston rod, and prevents the clamping blocks 16 from loosening due to vibration or other factors during the clamping process, which could cause the hydraulic cylinder or piston rod to slip off.

[0040] Guide rods 17 are fixedly connected to the inner sides of both the movable gear 13 and the movable frame 10. Guide holes with diameters matching the guide rods 17 are opened on the inner sides of both clamping blocks 16. Both guide holes are slidably connected to the guide rods 17.

[0041] The two clamping blocks 16 are driven by the bidirectional screw 14 to move synchronously relative to each other or in opposite directions, ensuring that the hydraulic cylinder is always centered on the two clamping blocks 16 during the clamping process, thus achieving automatic centering. The guide rod 17 is slidably connected to the two clamping blocks 16, serving as a guide and limiter. During the movement of the clamping blocks 16, the guide rod 17 ensures that the clamping blocks 16 move in a straight line, preventing them from shifting or shaking during the movement. At the same time, when clamping the hydraulic cylinder, the guide rod 17 can share some of the force, making the force on the clamping blocks 16 more even. When the hydraulic cylinder is placed between the clamping blocks 16, the bidirectional screw 14 applies clamping force, and the guide rod 17 plays a supporting and balancing role, preventing the clamping blocks 16 from tilting or deforming due to uneven force. Furthermore, the presence of the guide rod 17 can reduce the vibration of the clamping blocks 16, making the clamping more stable, thereby ensuring the stability of the hydraulic cylinder during the clamping process.

[0042] By setting a movable handle 15 on the bidirectional screw 14, the clamping force and clamping position can be adjusted at any time according to actual needs by manually driving the bidirectional screw 14. The operator can flexibly control the clamping process according to the actual situation of the hydraulic cylinder to ensure the accuracy and stability of clamping. When clamping hydraulic cylinders of different sizes or shapes, the operator can manually rotate the movable handle 15 to adjust the position of the clamping block 16 in real time to adapt to the changes of the hydraulic cylinder. When manually rotating the handle, the operator can directly feel the resistance of the handle and the movement of the clamping block 16, thereby understanding the clamping force and status in real time. If the bidirectional screw 14 is driven by a motor and is not properly controlled, misoperation may occur, resulting in excessive or insufficient clamping force, which may damage the hydraulic cylinder or cause a safety accident.

[0043] Four guide blocks 19 are fixedly connected to the outer side of the assembly platform 7, and four guide rails 18 are fixedly connected to the tooling table 1. The four guide blocks 19 are slidably connected to the four guide rails 18 respectively. By setting the four guide blocks 19 and the four guide rails 18, the stability of the assembly platform 7 in moving up and down can be ensured. The assembly platform 7 can be limited and guided to ensure that the force is even when the assembly platform 7 moves up and down. This avoids the assembly platform 7 from shaking or deviating due to uneven force or external interference during the lifting and lowering process. It can also constrain the assembly platform 7, restricting it to only make linear movements in the direction of the guide rails 18, effectively reducing shaking and deviating, and ensuring that the assembly platform 7 can be lifted and lowered smoothly.

[0044] The four corners of the bottom of the tooling table 1 are all fixedly connected to casters. Each caster has a brake fixedly connected to its outer side, and anti-slip grooves are provided on the outer side of each caster. These casters allow the operator to easily move the tooling table 1 to a designated location for use. This facilitates the assembly and processing of hydraulic cylinders and piston rods at a specific work location, and also facilitates cleaning of the area where the tooling table 1 is located. The four brakes can individually secure the four casters, preventing the operator from accidentally scrambling them during assembly. When the piston rod is engaged, the four casters may wobble or shift to ensure the stability of the cylinder and piston rod assembly. By setting anti-slip grooves on the casters, the steering operation of the casters becomes more precise and flexible. When it is necessary to change the direction of movement, the anti-slip grooves can provide additional friction to help the casters respond quickly to steering commands, reduce the resistance and delay during steering, and at the same time, make the casters have an anti-slip effect. On smooth surfaces, the casters can better grip the ground, ensuring that the tooling table 1 remains stable during movement and reducing accidental movement or shifting caused by slippage.

[0045] The inner sides of the movable gear 13 and the movable frame 10 are provided with fixed square holes. There are two of each of the two-way screws 14, movable handles 15, clamping blocks 16 and guide rods 17. The two two-way screws 14, two movable handles 15, two clamping blocks 16 and two guide rods 17 are located inside the two fixed square holes respectively. There are two sets of clamping blocks 16, with two clamping blocks 16 in each set. The two sets of clamping blocks 16 are located inside the two fixed square holes respectively. The clamping blocks 16 are V-shaped. The two fixed square holes are flush and the two fixed square holes are the same size.

[0046] When the cylinder or piston rod to be assembled is placed between two V-shaped clamping blocks 16, regardless of the initial position of the cylinder or piston rod in the V-groove, it will automatically roll or slide to the center position of the V-groove as long as it is subjected to a certain clamping force. This automatic centering function ensures that the cylinder or piston rod is accurately and stably positioned during clamping, reducing machining or assembly errors caused by positional deviations. The V-shaped clamping blocks 16 increase the number of contact points between the clamping blocks 16 and the cylinder. Compared with planar clamping, the contact area is larger and more evenly distributed. Multiple contact points share the clamping force, enabling the cylinder to... The force is more evenly distributed on the surface of the cylinder, avoiding local stress concentration and thus improving the stability of clamping. At the same time, it can clamp and fix cylinders or piston rods of different sizes. As long as the diameter of the cylinder is within the clamping range of the V-groove of the clamping block 16, stable clamping can be achieved. This application is not limited to assembling and splicing only cylinders or piston rods. After the cylinders or piston rods are assembled, other related structures of the cylinders and piston rods can be assembled and spliced, such as assembling pistons, connecting rods and bearings on the cylinders and piston rods. At the same time, the structures of other equipment parts can also be assembled and combined.

[0047] The implementation principle of the special tooling equipment for hot-fitted piston rod shaft head in this application embodiment is as follows:

[0048] (1) The two-way motor 2 can drive the two first bevel gears 3, the two second bevel gears 4 and the two threaded rods 5 to rotate respectively. When the two threaded rods 5 rotate, they can drive the two threaded blocks 6 to rise and fall, and then drive the assembly table 7, the fixed frame 8, the electric push rod 9, the movable frame 10, the two two-way screws 14, the two movable handles 15, the two sets of clamping blocks 16 and the two guide rods 17 to move up and down in sequence. The height of the assembly table 7 can be adjusted according to the height of the operator and the needs of loading and unloading the cylinder and piston rod. This can ensure the effect of the operator using the assembly table 7 to assemble the cylinder and piston rod.

[0049] (2) After the height of the assembly table 7 is adjusted, the cylinder and piston rod to be assembled are placed on the two sets of clamping blocks 16 respectively. The cylinder is placed between the two clamping blocks 16 on the left and the piston rod is placed between the two clamping blocks 16 on the right. The double screw 14 can be rotated by rotating the movable handle 15. When the double screw 14 rotates, it can drive the two clamping blocks 16 to move relative to each other. When the two clamping blocks 16 move relative to each other, the cylinder can be clamped and fixed. At the same time, the cylinder and piston rod can be clamped and fixed respectively by the two double screws 14, the two movable handles 15, the two sets of clamping blocks 16 and the two guide rods 17. It can clamp and fix cylinders and piston rods of different specifications, and can ensure that the cylinder and piston rod are aligned and the center positions of the cylinder and piston rod are aligned, so as to ensure the efficiency of subsequent cylinder and piston rod assembly.

[0050] (3) When the angle of the cylinder needs to be adjusted, the motor 11 can drive the transmission gear 12, the movable gear 13, the left double screw 14, the left movable handle 15, the two left clamping blocks 16, the left guide rod 17 and the cylinder to rotate in sequence, thereby adjusting the rotation angle of the cylinder. The cylinder can be adjusted according to the position between some mounting holes and protrusions on the cylinder and the piston rod to ensure that the holes or protrusions on the cylinder and the piston rod are aligned when the cylinder and the piston rod are assembled, thus ensuring the accuracy of the assembly of the cylinder and the piston rod.

[0051] (4) After the cylinder and piston rod are clamped and the cylinder angle is adjusted, when it is necessary to assemble the cylinder and piston rod, the electric push rod 9 can sequentially drive the movable frame 10, the right double screw 14, the right movable handle 15, the two right clamping blocks 16, the right guide rod 17 and the right piston rod to move horizontally, so that the cylinder and piston rod can be spliced ​​together, thus achieving the purpose of quick assembly of the cylinder and piston rod, so as to reduce the labor intensity of the operator;

[0052] (5) Compared with the existing technology, the overall structure is simple and easy to use. It achieves the purpose of easy height adjustment of the tooling equipment. Operators do not need to spend extra time and effort to adapt to the height of the equipment, nor do they need to frequently bend over, raise their feet or use other auxiliary tools to reach the appropriate operating position. When the piston rod shaft head is too large, operators do not need to lift the piston rod shaft head onto the tooling equipment for clamping and assembly. It is convenient to quickly load the piston rod shaft head, reduce the complexity and difficulty of equipment operation, improve the efficiency of piston rod shaft head assembly, and meet the needs of operators.

[0053] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A special tooling device for heat-fitting piston rod shaft ends, characterized in that: It includes a tooling table (1), an assembly table (7) movably set on the tooling table (1), a fixed frame (8) fixed on the assembly table (7), a movable gear (13) rotatably set in the fixed frame (8), a movable frame (10) movably set on the assembly table (7), a lifting assembly for adjusting the height of the assembly table (7), a translation assembly for driving the movable frame (10) to move, a rotation assembly for driving the movable gear (13) to rotate, and a clamping assembly for clamping the piston rod shaft head; The lifting assembly includes two threaded blocks (6) fixed on the assembly table (7), two threaded rods (5) rotatably set on the tooling table (1), and a lifting component for synchronously lifting the two threaded blocks (6). The two threaded rods (5) are threadedly connected to the two threaded blocks (6) respectively. The clamping assembly includes two clamping blocks (16) respectively movably disposed within the movable gear (13) and the movable frame (10), and a clamping member for moving the two clamping blocks (16) relative to or opposite to each other.

2. The special tooling equipment for heat-fitting piston rod shaft head according to claim 1, characterized in that: The lifting component includes two first bevel gears (3) and two second bevel gears (4) rotatably mounted on the tooling table (1) and a bidirectional motor (2) fixed on the tooling table (1). The two threaded rods (5) are coaxially fixed with the two second bevel gears (4), the two first bevel gears (3) mesh with the two second bevel gears (4), and the two first bevel gears (3) are connected to the two output ends of the bidirectional motor (2).

3. The special tooling equipment for heat-fitting piston rod shaft head according to claim 1, characterized in that: The translation component includes an electric push rod (9) and a dovetail plate (20) fixed on the assembly platform (7). The movable frame (10) is fixedly connected to the output end of the electric push rod (9). A dovetail groove is provided on the movable frame (10), and the dovetail plate (20) is slidably connected to the dovetail groove.

4. The special tooling equipment for heat-fitting piston rod shaft head according to claim 1, characterized in that: The rotating assembly includes a transmission gear (12) rotatably disposed in the fixed frame (8) and an electric motor (11) fixed on the fixed frame (8). The transmission gear (12) meshes with the movable gear (13), and the transmission gear (12) is connected to the output end of the electric motor (11).

5. The special tooling equipment for heat-fitting piston rod shaft head according to claim 1, characterized in that: The clamping component includes a bidirectional screw (14) rotatably disposed in the movable gear (13) and the movable frame (10) respectively, and a movable handle (15) fixed on the bidirectional screw (14). The two clamping blocks (16) are threadedly connected to the bidirectional screw (14). The outer side of the bidirectional screw (14) has two helical grooves, and the two helical grooves are in opposite directions. The inner side of the two clamping blocks (16) is provided with threaded holes that are adapted to the two helical grooves.

6. The special tooling equipment for heat-fitting piston rod shaft head according to claim 1, characterized in that: The inner sides of the movable gear (13) and the movable frame (10) are both fixedly connected with guide rods (17), and the inner sides of the two clamping blocks (16) are provided with guide holes that are adapted to the diameter of the guide rods (17), and the two guide holes are slidably connected to the guide rods (17).

7. The special tooling equipment for heat-fitting piston rod shaft head according to claim 1, characterized in that: Four guide blocks (19) are fixedly connected to the outside of the assembly platform (7), and four guide rails (18) are fixedly connected to the tooling platform (1). The four guide blocks (19) are slidably connected to the four guide rails (18) respectively.

8. The special tooling equipment for heat-fitting piston rod shaft head according to claim 1, characterized in that: The tooling table (1) has four corners at the bottom of each of the four corners fixedly connected with casters. Each of the four casters has a brake fixedly connected to its outer side and an anti-slip groove is provided on its outer side.

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