A machining apparatus of a jacking device

Abstract

The utility model relates to polishing equipment technical field discloses a kind of processing equipment of jacking device, comprising: processing platform, the top of the processing platform is equipped with two fixed rings, with predetermined interval between the two;The present application is by being arranged polishing ring, sleeve ring, support and movement driving structure, the automation reciprocating polishing to shaft workpiece is realized, processing path controllable, strong adaptability, significantly improve processing efficiency.The ball is embedded in the matching groove between polishing ring and sleeve ring, so that the polishing ring has small friction resistance and stable rotation during rotation, ensuring the uniformity of the polishing surface. The moving part composed of lead screw and motor drives the sleeve ring to move accurately, so that the polishing ring can sequentially process different areas of the workpiece.

Description

Technical Field

[0001] This utility model relates to the field of grinding device technology, specifically to a processing equipment with a lifting device. Background Technology

[0002] Lifting devices are widely used in engineering machinery, mold positioning, bridge jacking, equipment leveling, and other applications. They typically employ hydraulic cylinders, mechanical screws, or pneumatic cylinders to control the lifting and lowering of heavy objects. Among these, hydraulic cylinders are the most common lifting actuators in industrial applications due to their advantages such as high load-bearing capacity, compact structure, and flexible adjustment. A hydraulic cylinder usually consists of a cylinder barrel, piston, piston rod, sealing structure, and connecting end. The piston rod, in particular, requires frequent extension and retraction during operation, bearing reciprocating friction and significant lateral loads. Therefore, it has high requirements for surface roughness, coaxiality, and straightness, necessitating precision grinding during manufacturing to improve sealing performance, extend service life, and reduce the risk of hydraulic leakage.

[0003] Existing machining methods for shaft components in piston rods or lifting devices mainly include turning, quenching, external cylindrical grinding, and mirror polishing. In actual production, grinding, as a key process to ensure surface quality and precision, is often performed manually or using semi-automatic grinding devices. However, traditional methods have the following shortcomings: First, manual grinding makes it difficult to guarantee the cylindricity and surface consistency of shaft components, and the processing results depend on worker experience, resulting in poor stability; second, some automatic grinding devices have complex structures, are cumbersome to adjust, and are not easily adapted to hydraulic cylinder shaft components of different specifications and lengths, resulting in poor versatility. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a processing equipment for a lifting device, which aims to alleviate the above problems to at least a certain extent.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A processing device for a lifting device, comprising:

[0007] The processing platform has two fixing rings on its top, with a predetermined distance between them;

[0008] A grinding ring is provided on the processing platform, and the grinding ring is capable of rotating about its own axis;

[0009] Multiple guide shafts are provided within the fixed ring, and the multiple guide shafts form a channel for the workpiece to pass through;

[0010] A movable component is provided between the processing platform and the grinding ring for reciprocating movement of the grinding ring between the two fixed rings;

[0011] A rotating component disposed on the grinding ring is used to rotate the grinding ring;

[0012] The guide shaft can be unlocked when the grinding ring moves toward the fixed ring to a predetermined position.

[0013] Preferably, a support is connected to the processing platform, and a collar is slidably connected to the support, with the grinding ring rotatably connected inside the collar.

[0014] Preferably, the inner wall of the collar is provided with a groove a, and the outer wall of the grinding ring is provided with a groove b corresponding to the groove a, and a ball is sleeved in both the groove a and the groove b.

[0015] Preferably, the moving component includes a lead screw rotatably connected to the machining platform, a motor a is provided on the machining platform, the drive shaft of the motor a is connected to the lead screw, and the collar is threadedly engaged with the lead screw.

[0016] Preferably, the rotating component includes a motor b connected to the collar, a gear a connected to the drive shaft of the motor b, and a gear b connected to the grinding ring that meshes with the gear a.

[0017] Preferably, a limiting shaft is fixed on one of the plurality of guide shafts provided on the fixing ring, and a limiting boss is provided above the limiting shaft.

[0018] Preferably, a sliding ring is slidably connected to the bracket, a connecting rod is rotatably connected to the sliding ring, a lifting ring is rotatably connected to the end of the connecting rod, and a limiting boss is provided on the lifting ring.

[0019] Preferably, a spring is connected between the sliding ring and the bracket, a limit rod is connected to the bracket, the lifting ring is slidably connected to the limit rod, a connecting rod is connected to the lifting ring, and the limiting boss is fixed to the connecting rod.

[0020] In summary, the present invention has the following main advantages:

[0021] This invention achieves automated reciprocating grinding of shaft-type workpieces by setting up a grinding ring, a collar, a bracket, and a moving drive structure. The processing path is controllable and highly adaptable, significantly improving processing efficiency. By embedding ball bearings in the mating groove between the grinding ring and the collar, the grinding ring experiences low frictional resistance and stable rotation during rotation, ensuring the uniformity of the ground surface. A moving component consisting of a lead screw and a motor drives the collar to move precisely, allowing the grinding ring to sequentially process different areas of the workpiece. Furthermore, when the collar moves to the sliding ring position, it can push the sliding ring, causing it to automatically lift the limiting structure, temporarily releasing the limiting boss for easy workpiece adjustment; after processing, the limiting structure automatically resets, improving the safety and automation level of workpiece installation and positioning. The overall structure is compact and the actions are clearly coordinated, offering advantages of high efficiency, high precision, and low manual dependence. It is particularly suitable for automated external cylindrical grinding processes of long-stroke hydraulic cylinder shaft parts in lifting devices. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the collar structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the grinding ring structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the fixing ring structure of this utility model.

[0026] Figure label:

[0027] 100. Machining platform; 101. Fixing ring; 102. Grinding ring; 103. Guide shaft;

[0028] 200. Bracket; 201. Collar; 202. Groove a; 203. Groove b; 204. Ball bearing;

[0029] 300. Lead screw; 301. Motor a; 302. Motor b; 303. Gear a; 304. Gear b; 305. Limiting shaft; 306. Limiting boss;

[0030] 400. Sliding ring; 401. Connecting rod; 402. Lifting ring; 403. Spring; 404. Limiting rod; 405. Connecting rod. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] To better understand the present invention, a detailed description of a grinding and processing equipment for shaft parts of a lifting device according to the present invention will be provided in conjunction with the accompanying drawings.

[0033] like Figures 1-4 As shown, a processing device for a lifting device includes a processing platform 100, two fixed rings 101, a grinding ring 102, a guide shaft 103, a moving component, and a rotating component.

[0034] The processing platform 100 is a rectangular steel structure base with two fixing rings 101 fixedly installed on its top. The two rings are spaced apart along the length of the processing platform 100 with a predetermined spacing, and are used to position and support the two ends of shaft-type workpieces. The fixing rings 101 can be integrally cast circular structures with radially evenly distributed positioning grooves on their inner sides for embedding guide shafts 103.

[0035] The fixed ring 101 is provided with multiple guide shafts 103 inside. These guide shafts 103 are arranged in a circle to form a hollow channel, through which the shaft-type workpiece can be inserted.

[0036] The grinding ring 102 can be unlocked when it moves to its corresponding position, allowing the shaft to be adjusted as necessary during the grinding process.

[0037] The grinding ring 102 is disposed between two fixed rings 101 and is movable along the length of the processing platform 100. The grinding ring 102 has a circular structure and a grinding module, including a grinding brush wheel, is provided at its center. The grinding ring 102 rotates around its own axis to achieve uniform grinding of the surface of shaft-like parts.

[0038] The grinding ring 102 is connected to the processing platform 100 via a moving component and can reciprocate between the two fixed rings 101 along the processing platform 100.

[0039] To achieve the polishing function, the polishing ring 102 is also provided with a rotating component.

[0040] With the above setup, during the preparation stage, the operator places the shaft workpiece to be processed horizontally between two fixing rings 101, with both ends passing through the guide shafts 103 inside the two fixing rings 101. Because the multiple guide shafts 103 are arranged in a ring shape, forming a stable guide channel, circumferential support and initial positioning of the shaft workpiece can be achieved at multiple contact points. The guide shafts 103 are locked within the fixing rings 101, effectively preventing workpiece wobbling before grinding.

[0041] Subsequently, the moving component is activated, driving the grinding ring 102 to move along the length of the processing platform 100 until its center is aligned with the designated grinding area of ​​the shaft workpiece. When the grinding ring 102 approaches the predetermined position of the fixed ring 101, the guide shaft 103 can be unlocked. At this time, the personnel on the left and right can adjust the position of the workpiece, so that the part that has been ground is moved out of the area where the grinding ring 102 moves, and the part that has not been ground is moved into the area where the grinding ring 102 moves, thereby realizing the segmented grinding treatment of different areas of the shaft workpiece, improving the integrity of the processing and the surface consistency.

[0042] After the workpiece position adjustment is completed, the moving part moves the position of the grinding ring 102 again. At this time, the guide shaft 103 is repositioned to provide stable support for the workpiece in the new position. The grinding ring 102 continues to reciprocate within the new area, and in conjunction with the rotation of the grinding brush wheel, performs the same surface treatment operation on the un-grinded area.

[0043] In this embodiment, a support 200 is connected to the processing platform 100, and the support 200 is disposed on both sides of the processing platform 100. A collar 201 is slidably connected to the support 200, and the collar 201 can slide along the support 200. The grinding ring 102 is rotatably connected inside the collar 201, and the grinding ring 102 can rotate around its own axis.

[0044] During use, the grinding ring 102 is rotatably connected within the collar 201 and can rotate around its own axis, thereby driving the grinding brush wheel to grind the surface of the shaft-like workpiece. The collar 201 and the bracket 200 are slidably connected. Driven by the moving parts, the collar 201 containing the grinding ring 102 can move along the direction of the bracket 200, allowing the grinding ring 102 to process multiple positions of the shaft-like workpiece sequentially.

[0045] In this embodiment, the inner wall of the collar 201 is provided with a groove a202, and the outer wall of the polishing ring 102 is provided with a groove b203 at the corresponding position. The groove a202 and the groove b203 are aligned with each other, and a plurality of balls 204 are sleeved between them.

[0046] With the above configuration, when the equipment is running, the grinding ring 102 rotates around its own axis under the drive of the rotating component. Since there are balls 204 between the outer wall groove b203 of the grinding ring 102 and the inner wall groove a202 of the collar 201, the balls 204 roll between the two grooves, so that the grinding ring 102 and the collar 201 form a low-friction, high-stability support structure during the rotation process.

[0047] In this embodiment, the moving component includes a lead screw 300 mechanism, which is rotatably connected to the machining platform 100. A motor a301 is also mounted on the machining platform 100, and the drive shaft of the motor a301 is connected to the lead screw 300. The collar 201 and the lead screw 300 are threadedly engaged.

[0048] With the above settings, during equipment operation, the operator can start the motor a301 mounted on the processing platform 100, and the drive shaft of the motor a301 will drive the lead screw 300 to rotate. Since the collar 201 and the lead screw 300 are threadedly fitted, when the lead screw 300 rotates, the collar 201 will move along the axis of the lead screw 300 under the action of thread transmission.

[0049] With this structure, the grinding ring 102, as a rotating connecting component of the collar 201, can move smoothly between the two fixed rings 101 along with the collar 201, thereby realizing automatic switching of the grinding position.

[0050] In this embodiment, the rotating component includes a motor b302, which is fixedly mounted on the collar 201, and a gear a303 is connected to its drive shaft. A gear b304 is fixedly mounted on the grinding ring 102, and gear a303 meshes with gear b304. The motor b302 drives gear a303 to rotate, thereby driving gear b304 and the grinding ring 102 to rotate.

[0051] With the above settings, in the working state, motor b302 starts, and its drive shaft drives gear a303 to rotate. Gear a303 meshes with gear b304 located on the outer side of grinding ring 102. Gear b304 rotates synchronously under the drive of gear a303, thereby driving grinding ring 102 to rotate around its own axis.

[0052] This gear drive structure features high transmission efficiency, compact structure, and sensitive response. Since the motor b302 is mounted on the collar 201, it can move with the collar 201 as a whole and always maintains meshing with the gear b304 of the grinding ring 102. This ensures that the grinding ring 102 can stably rotate in any position, effectively improving grinding efficiency and surface uniformity. Compared to traditional belt or chain drive structures, this gear meshing method is more suitable for high-frequency reciprocating and high-speed rotation scenarios, and has better wear resistance and service life.

[0053] In this embodiment, among the plurality of guide shafts 103 disposed within the fixing ring 101, a limiting shaft 305 is fixedly mounted on one of the guide shafts 103, and a limiting boss 306 is provided above the limiting shaft 305. This limiting structure is used to limit the axial position of the shaft-type workpiece and prevent the workpiece from sliding axially during the processing.

[0054] In this embodiment, a sliding ring 400 is slidably connected to the bracket 200, a connecting rod 405 is rotatably connected to the sliding ring 400, and a lifting ring 402 is rotatably connected to the end of the connecting rod 405. The limiting boss 306 is disposed on the lifting ring 402 and is located above the limiting shaft 305.

[0055] With this structure, the limiting boss 306 can rise and fall as a whole with the lifting ring 402, thereby controlling the limiting state of shaft-type workpieces in the direction of the limiting shaft 305. When it is necessary to load, adjust or release the workpiece, the lifting ring 402 can be raised by the connecting rod 405 driven by the sliding ring 400, thereby temporarily releasing the limiting.

[0056] In this embodiment, a spring 403 is connected between the sliding ring 400 and the bracket 200 to provide a return force for the sliding ring 400. A limiting rod 404 is connected to the bracket 200, and the lifting ring 402 is slidably connected to the limiting rod 404. A connecting rod 405 is connected to the lifting ring 402, and the limiting boss 306 is fixedly disposed on the connecting rod 405.

[0057] With the above settings, when the equipment is in normal processing state, the spring 403 pushes the sliding ring 400 to stay in the preset position. At this time, the connecting rod 405 drives the limiting boss 306 to be located above the limiting shaft 305, forming an upper limit effect on the shaft workpiece, preventing the workpiece from floating up due to reaction force or friction jump during the grinding process, and enhancing the stability of the workpiece in the axial direction.

[0058] When the moving component drives the collar 201 to move along the bracket 200 to the position of the sliding ring 400, the outer structure of the collar 201 can engage with the sliding ring 400, causing the sliding ring 400 to displace in the opposite direction against the elastic force of the spring 403. The movement of the sliding ring 400 further drives the lifting ring 402 connected to it to move upward, which in turn drives the limiting boss 306 to move upward through the connecting rod 405 connected to the lifting ring 402, so that the limiting boss 306, which was originally in a limiting state, temporarily disengages from the workpiece surface, thereby releasing the upper limit constraint on the shaft workpiece.

[0059] This invention, through the configuration of a grinding ring 102, a collar 201, a bracket 200, and a moving drive structure, achieves automated reciprocating grinding of shaft-type workpieces. The processing path is controllable and highly adaptable, significantly improving processing efficiency. By embedding ball bearings 204 in the mating groove between the grinding ring 102 and the collar 201, the grinding ring 102 experiences low frictional resistance and stable rotation during rotation, ensuring the uniformity of the ground surface. A moving component consisting of a lead screw 300 and a motor drives the collar 201 to move precisely, allowing the grinding ring 102 to sequentially process different areas of the workpiece. Furthermore, when the collar 201 moves to the position of the sliding ring 400, it can push the sliding ring 400, causing it to automatically lift the limiting structure, temporarily releasing the limiting boss 306 for easy workpiece adjustment; after processing, the limiting structure automatically resets, improving the safety and automation level of workpiece installation and positioning. With its compact overall structure and clear coordination of actions, it boasts the technical advantages of high efficiency, high precision, and low reliance on manual labor, making it particularly suitable for automated external cylindrical grinding processes of long-stroke hydraulic cylinder shaft parts in lifting devices.

[0060] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A processing device for a lifting mechanism, characterized in that, include: A processing platform (100) is provided with two fixing rings (101) on its top, with a predetermined distance between them; A grinding ring (102) is provided on the processing platform (100), and the grinding ring (102) is rotatable about its own axis; A plurality of guide shafts (103) are provided within the fixed ring (101), and the plurality of guide shafts (103) form a channel for the workpiece to pass through; A movable component is provided between the processing platform (100) and the grinding ring (102) for reciprocatingly moving the grinding ring (102) between the two fixed rings (101); A rotating component disposed on the grinding ring (102) is used to rotate the grinding ring (102); When the grinding ring (102) moves toward the fixed ring (101) to a predetermined position, the guide shaft (103) can be unlocked.

2. The processing equipment for a lifting device according to claim 1, characterized in that, A support (200) is connected to the processing platform (100), and a collar (201) is slidably connected to the support (200). The grinding ring (102) is rotatably connected inside the collar (201).

3. The processing equipment for a lifting device according to claim 2, characterized in that, The inner wall of the collar (201) is provided with a groove a (202), and the outer wall of the grinding ring (102) is provided with a groove b (203) corresponding to the groove a (202). A ball (204) is sleeved in both the groove a (202) and the groove b (203).

4. The processing equipment for a lifting device according to claim 2, characterized in that, The moving component includes a lead screw (300) rotatably connected to the processing platform (100), a motor a (301) is provided on the processing platform (100), the drive shaft of the motor a (301) is connected to the lead screw (300), and the collar (201) is threadedly engaged with the lead screw (300).

5. The processing equipment for a lifting device according to claim 2, characterized in that, The rotating component includes a motor b (302) connected to the collar (201), a gear a (303) connected to the drive shaft of the motor b (302), and a gear b (304) connected to the grinding ring (102) and meshing with the gear a (303).

6. The processing equipment for a lifting device according to claim 2, characterized in that, A limiting shaft (305) is fixed on one of the plurality of guide shafts (103) provided on the fixing ring (101), and a limiting boss (306) is provided above the limiting shaft (305).

7. The processing equipment for a lifting device according to claim 6, characterized in that, A sliding ring (400) is slidably connected to the bracket (200), a connecting rod (405) is rotatably connected to the sliding ring (400), a lifting ring (402) is rotatably connected to the end of the connecting rod (405), and a limiting boss (306) is provided on the lifting ring (402).

8. The processing equipment for a lifting device according to claim 7, characterized in that, A spring (403) is connected between the sliding ring (400) and the bracket (200). A limiting rod (404) is connected to the bracket (200). The lifting ring (402) is slidably connected to the limiting rod (404). A connecting rod (405) is connected to the lifting ring (402). The limiting boss (306) is fixed to the connecting rod (405).

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