Furnace charging clamp for oil cylinder piston surface coating

Abstract

The utility model relates to a furnace charging clamp for oil cylinder piston surface coating, and belongs to the technical field of oil cylinder piston machining, the furnace charging clamp comprises a clamping frame and a plurality of clamping mechanisms hung on the clamping frame, each clamping mechanism comprises a clamping frame, a movable rod, a fastening screw and a secondary thrust assembly, the movable rod is arranged in the clamping frame in a sliding mode, and the fastening screw is arranged in the clamping frame; the fastening screw is connected to the clamping frame in a threaded penetrating mode, one end of the fastening screw can abut against the side portion of the movable rod, a plurality of right clamping blocks are evenly fixed to the side, away from the fastening screw, of the movable rod, and left clamping blocks are fixed to the positions, corresponding to the right clamping blocks, in the clamping frame. According to the device, the structure is simple, clamping is convenient, the clamping mechanism is arranged, a plurality of pistons can be clamped in the clamping mechanism at a time, all the pistons can be firmly pressed under the supporting action of the fastening screw and the secondary thrust assembly, the charging amount is greatly increased, and therefore the coating cost is saved, and the production efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of hydraulic cylinder piston machining, and in particular to a furnace loading fixture for coating the surface of hydraulic cylinder pistons. Background Technology

[0002] A hydraulic cylinder, also known as a hydraulic cylinder, is a linear motion actuator whose output force is directly proportional to the effective area of ​​the piston and the pressure difference across it. Its function is to convert hydraulic energy into mechanical energy. The input to a hydraulic cylinder is the flow rate and pressure of the fluid, and the output is linear motion speed and force. The piston of a hydraulic cylinder can perform linear reciprocating motion, but the output linear displacement is finite. A hydraulic cylinder is an energy conversion device that converts hydraulic energy into reciprocating linear motion mechanical energy. A hydraulic cylinder basically consists of a cylinder barrel and cylinder head, a piston and piston rod, sealing devices, cushioning devices, and venting devices.

[0003] In the prior art, in order to increase the friction of the piston, a PVD nano-coating is sprayed on the piston surface, which can improve the surface hardness of the piston and give it the characteristics of low friction, high temperature resistance and corrosion resistance.

[0004] In current coating processes, the piston is typically laid flat on a fixed plate for coating. This method results in a small amount of piston clamping, leading to wasteful coating costs (the more objects there are, the more cost-effective the coating becomes). Therefore, there is an urgent need to develop corresponding furnace loading fixtures to save coating costs and improve production efficiency. Utility Model Content

[0005] The purpose of this application is to provide a furnace loading fixture for coating the surface of a hydraulic cylinder piston, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides a furnace loading fixture for coating the surface of a hydraulic cylinder piston, employing the following technical solution:

[0007] A furnace loading fixture for coating the surface of a hydraulic cylinder piston includes a clamping frame and several clamping mechanisms hanging on the clamping frame. Each clamping mechanism includes a clamping frame, a movable rod, a fastening screw, and a secondary thrust assembly. The movable rod is slidably disposed within the clamping frame. The fastening screw is threaded through the clamping frame, and one end of the fastening screw can abut against the side of the movable rod. Several right clamping blocks are evenly fixed on the side of the movable rod away from the fastening screw. Left clamping blocks are fixed within the clamping frame at positions corresponding to the right clamping blocks. The fastening screw has symmetrical secondary thrust assemblies on its upper and lower sides. The secondary thrust assembly includes a first connecting rod, a second connecting rod, a connecting block, and a thrust screw. One end of the first connecting rod is hinged to the movable rod, and the other end of the first connecting rod is hinged to the connecting block. One end of the second connecting rod is hinged to the connecting block, and the other end of the second connecting rod is hinged to the clamping frame. One end of the thrust screw can abut against the connecting block. The thrust screw and the threaded connection are through the clamping frame, and the thrust screw is perpendicular to the fastening screw.

[0008] Both the left and right clamping blocks are arc-shaped, and the inner walls of both the left and right clamping blocks are fixed with anti-slip pads.

[0009] Preferably, in order to reduce the number of turns, both the fastening screw and the thrust screw include a smooth section and a threaded section.

[0010] Guide rods are also symmetrically fixed on the side of the movable rod near the fastening screw.

[0011] The surface of the connecting block is symmetrically provided with notches, and the first connecting rod and the second connecting rod are both hinged in the notches. The included angle between the first connecting rod and the second connecting rod is ≤180°.

[0012] The clamping frame has clamping holes on its upper and lower sides. The clamping frame is a regular polyhedron. The top surface of the clamping frame has a hanging hole. The side of the clamping frame is fixed with a hook that matches the hanging hole.

[0013] In summary, this application includes at least one of the following beneficial technical effects: the furnace loading fixture for coating the surface of the hydraulic cylinder piston has a simple structure and is easy to clamp. By setting up a clamping mechanism, multiple pistons can be clamped at one time, and all pistons can be firmly pressed under the support of the fastening screws and the secondary thrust assembly, which greatly increases the furnace loading capacity, thereby saving coating costs and improving production efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0015] Figure 2 This is a structural schematic diagram illustrating the clamping mechanism in the embodiments of this application.

[0016] Figure 3 This is a structural schematic diagram illustrating the secondary thrust assembly in the embodiments of this application.

[0017] Figure 4 This is a schematic diagram illustrating the structure of the thrust screw in the embodiments of this application.

[0018] Explanation of reference numerals in the attached drawings: 1. Clamping frame; 11. Clamping hole; 2. Clamping mechanism; 21. Clamping frame; 211. Hook; 22. Movable rod; 23. Fastening screw; 24. Secondary thrust assembly; 241. First connecting rod; 242. Second connecting rod; 243. Connecting block; 2431. Notch; 244. Thrust screw; 25. Right clamping block; 26. Left clamping block; 3. Guide rod. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0020] This application discloses a furnace loading fixture for coating the surface of a hydraulic cylinder piston, referring to... Figure 1-4 The device includes a clamping frame 1 and several clamping mechanisms 2 hanging on the clamping frame 1. Each clamping mechanism 2 includes a clamping frame 21, a movable rod 22, fastening screws 23, and a secondary thrust assembly 24. The movable rod 22 is slidably disposed within the clamping frame 21. The fastening screws 23 are threaded through and connected to the clamping frame 21, with one end of the fastening screws 23 abutting against the side of the movable rod 22. Several right clamping blocks 25 are evenly fixed on the side of the movable rod 22 away from the fastening screws 23. A left clamping block 26 is fixed within the clamping frame 21 corresponding to the position of the right clamping blocks 25. Both the left and right clamping blocks 26 are arc-shaped, and the inner walls of both the left and right clamping blocks 26 are... A secondary thrust assembly 24 is symmetrically arranged on the upper and lower sides of the fastening screw 23, which is fixed with an anti-slip pad. The secondary thrust assembly 24 includes a first connecting rod 241, a second connecting rod 242, a connecting block 243, and a thrust screw 244. One end of the first connecting rod 241 is hinged to the movable rod 22, and the other end of the first connecting rod 241 is hinged to the connecting block 243. One end of the second connecting rod 242 is hinged to the connecting block 243, and the other end of the second connecting rod 242 is hinged to the clamping frame 21. One end of the thrust screw 244 can abut against the connecting block 243. The thrust screw 244 is also threaded through and connected to the clamping frame 21, and the thrust screw 244 is perpendicular to the fastening screw 23.

[0021] The clamping frame 1 has clamping holes 11 on both the upper and lower sides. The clamping frame 1 is a regular polyhedron. The top surface of the clamping frame 1 has a hanging hole. The side of the clamping frame 21 is fixed with a hook 211 that matches the hanging hole.

[0022] Both the fastening screw 23 and the thrust screw 244 include a smooth section and a threaded section.

[0023] Reference Figure 2 Guide rods 3 are also symmetrically fixed on the side of the movable rod 22 near the fastening screw 23.

[0024] Reference Figure 3 The surface of the connecting block 243 has symmetrical notches 2431. The first connecting rod 241 and the second connecting rod 242 are both hinged in the notches 2431. The included angle between the first connecting rod 241 and the second connecting rod 242 is ≤180°.

[0025] The implementation principle of a furnace loading fixture for coating the surface of a hydraulic cylinder piston according to an embodiment of this application is as follows:

[0026] The workers placed the pistons next to the left clamping block 26 in sequence, and then tightened the fastening screw 23. The fastening screw 23 pushed the movable rod 22, causing the right clamping block 25 to press against the piston, thus fixing multiple pistons at once. The first connecting rod 241 and the second connecting rod 242 in the thrust assembly on both sides can be extended to 180 degrees with the movable rod 22. After that, the thrust screws 244 on both sides are tightened respectively. The thrust screws 244 press against the connecting block 243 to ensure that the first connecting rod 241 and the second connecting rod 242 are taut. This ensures that the upper, lower, and middle sides of the movable rod 22 have strong clamping force, thus firmly fixing multiple pistons in the clamping mechanism 2. Finally, the multiple clamping mechanisms 2 are hung on the mounting frame 1 in sequence for furnace coating.

[0027] 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 furnace charging fixture for cylinder-piston surface coating, characterized by: The utility model provides a clamping frame (1) and a plurality of clamping mechanisms (2) hung on the clamping frame (1), the clamping mechanism (2) includes clamping frame (21), movable rod (22), fastening screw (23) and secondary thrust component (24), the movable rod (22) is slidably arranged in the clamping frame (21), the fastening screw (23) is screwed through and connected on the clamping frame (21), and one end of the fastening screw (23) can abut on the side of the movable rod (22), the movable rod (22) is uniformly fixed with a plurality of right clamping blocks (25) on the side away from the fastening screw (23), the clamping frame (21) is fixed with left clamping block (26) in the position corresponding to the right clamping block (25), the upper and lower sides of the fastening screw (23) are symmetrically provided with secondary thrust component (24), the secondary thrust component (24) includes first connecting rod (241), second connecting rod (242), connecting block (243) and thrust screw (244), one end of the first connecting rod (241) is hinged on the movable rod (22), the other end of the first connecting rod (241) is hinged on the connecting block (243), one end of the second connecting rod (242) is hinged on the connecting block (243), the other end of the second connecting rod (242) is hinged on the clamping frame (21), one end of the thrust screw (244) can abut on the connecting block (243), the thrust screw (244) is also screwed through and connected on the clamping frame (21), and the thrust screw (244) is perpendicular to the fastening screw (23).

2. The furnace charging fixture for cylinder-piston surface coating according to claim 1, characterized in that: The left clamping block (26) and the right clamping block (25) are both arc-shaped, and the inner walls of the left clamping block (26) and the right clamping block (25) are fixed with anti-skid pads.

3. The furnace charging fixture for cylinder-piston surface coating according to claim 1, characterized in that: The fastening screw (23) and the thrust screw (244) both include smooth sections and threaded sections.

4. The furnace charging fixture for cylinder-piston surface coating according to claim 1, characterized in that: The movable rod (22) is also symmetrically fixed with guide rods (3) on the side close to the fastening screw (23).

5. The furnace charging fixture for cylinder-piston surface coating according to claim 1, characterized in that: The connecting block (243) is symmetrically provided with notches (2431) on the surface, the first connecting rod (241) and the second connecting rod (242) are both hingedly connected in the notches (2431), and the included angle between the first connecting rod (241) and the second connecting rod (242) is less than or equal to 180 degrees.

6. The furnace charging fixture for cylinder-piston surface coating according to claim 1, characterized in that: The clamping frame (1) is provided with clamping holes (11) on the upper and lower sides, the clamping frame (1) is a regular polyhedron, the top surface of the clamping frame (1) is provided with a hanging hole, and the clamping frame (21) is fixed with a hook (211) matched with the hanging hole on the side.

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