Modularized lifting mechanism capable of swinging

Abstract

The utility model relates to the technical field of grinding and polishing machines, in particular to a modularized swinging lifting mechanism which comprises a rotating seat rotatably arranged at the top of a supporting force arm, a moving plate is vertically arranged at the front end of the rotating seat in a sliding mode, and the moving plate is used for installing a lifting module and a grinding and polishing module. The lifting module comprises a lead screw and a nut which are matched with each other, the lead screw vertically penetrates through a connecting base, a driving assembly for driving the lead screw to rotate is arranged on the connecting base, and the connecting base is fixed to the top of the moving plate; a vertical notch is formed in the movable plate, the nut is in clearance fit with the vertical notch, and the nut is fixed to the rotating seat; the grinding and polishing module comprises a U-shaped base used for installing a grinding and polishing head, and the U-shaped base is connected to the movable plate in a bolted mode. And through the independent mounting design of the rotating seat, the lifting module and the grinding and polishing module, the parts are convenient to disassemble and replace, and the mounting convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding and polishing machines, in particular to a modular swingable lifting mechanism. Background Art

[0002] Grinding and polishing machines are used in many industries. They are often used to prepare metal samples, polymer samples, ceramic samples or similar samples for further experiments, such as metallographic experiments. Known existing grinding and polishing machines such as Chinese utility model patent CN214237601U, a multi-purpose grinding and polishing machine for increasing the control of sample grinding amount, discloses that two independent grinding and polishing stations are arranged on the base; a supporting arm is arranged on one side of the grinding and polishing station, and a head is arranged on the supporting arm. A lifting part is arranged on the head; a sample holder 1 movablely sleeved on the sample or a sample holder 2 clamping and carrying the sample is arranged at the lower end of the lifting part; a grinding and polishing head locking device is arranged on the supporting arm to connect the head and clamp the head on the supporting arm; the grinding and polishing head locking device comprises a swing frame body and a clamping C-shaped open curved arm sleeved on the head of the supporting arm; the clamping C-shaped open curved arm has a clamping curved arm movable end and a clamping curved arm root; the swing frame body has a swing rotating hole and a swing driving hole, a clamping driving cylinder is installed in the swing driving hole, a clamping guide sleeve is vertically provided in the swing rotating hole, a clamping rotating shaft is provided in the clamping guide sleeve, and a clamping driving cylinder is provided in the clamping driving cylinder. A clamping swing arm is hinged between the cylinder and the clamping shaft, a clamping eccentric part is provided at the lower part of the clamping shaft, a clamping process notch is provided at the clamping eccentric part, and in the clamping process notch, one end of the clamping force arm is hinged to the clamping eccentric part; the other end of the clamping force arm is connected to the root of the clamping bent arm; one end of the clamping force arm is exposed through the movable end of the clamping bent arm; the clamping C-shaped open bent arm is held on the supporting vertical arm through the movable end of the clamping bent arm and the root of the clamping bent arm; the outer wall of the clamping eccentric part is in rotational pressure contact with the side of the movable end of the clamping bent arm; the clamping eccentric part is driven by the cylinder to adjust the opening and closing of the clamping C-shaped open bent arm, so as to lock the grinding and polishing head on the supporting vertical arm. The lifting part mainly includes a lifting guide wheel and a lifting fixed nut seat arranged on the swing frame, and a rotating motor and a grinding and polishing head are arranged on the lifting frame. The grinding and polishing head mainly includes a rotating input wheel frame body that is transmission-connected to a rotating motor, and the rotating input wheel frame body is coaxially rotatably arranged with a sample holder one or a sample holder two; a finger-shaped object is vertically arranged on the rotating input wheel frame body; a reset spring is arranged between the finger-shaped object and the rotating input wheel frame body; a main driving shaft body is arranged on the rotating input wheel frame body; and the lower end of the main driving shaft body is connected with the sample holder one or the sample holder two.

[0003] The above-mentioned grinding and polishing machine is extremely inconvenient during installation, disassembly and maintenance. Therefore, it is necessary to carry out modular improvement on the above-mentioned existing grinding and polishing machine. Utility Model Content

[0004] The purpose of the utility model is to overcome the defects and shortcomings in the prior art. To this end, the utility model provides a modular swingable lifting mechanism, which can improve the convenience of overall disassembly and maintenance of the grinding and polishing head.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a modular swingable lifting mechanism, including a swivel seat rotatably arranged on the top of a supporting arm, a movable plate is vertically slidably provided at the front end of the swivel seat, and the movable plate is used to install a lifting module and a grinding and polishing module; the lifting module includes a matching lead screw and a nut, the lead screw vertically passes through a connecting seat, a driving assembly for driving the lead screw to rotate is provided on the connecting seat, and the connecting seat is fixed on the top of the movable plate; a vertical notch is provided on the movable plate, the nut is clearance-matched with the vertical notch, and the nut is fixed on the swivel seat; the grinding and polishing module includes a U-shaped seat for installing a grinding and polishing head, and the U-shaped seat is bolted to the movable plate.

[0006] Furthermore, a plurality of sliding assemblies are provided between the movable plate and the rotating seat, and the sliding assemblies include matching sliders and guide rails, the guide rails are bolted to the movable plate, and the sliders are bolted to the rotating seat.

[0007] Furthermore, the driving assembly includes a synchronous pulley and a gear driven by a synchronous belt, the synchronous pulley is driven to rotate by a rotary motor A, and the rotary motor A is fixed on the connecting seat; the gear is fixed on the top of the lead screw.

[0008] Furthermore, the swingable lifting mechanism also includes a height limit assembly, which includes a limit switch and a U-shaped plate, and the U-shaped plate is used to trigger the limit switch; the limit switch is fixed on the movable plate; and the U-shaped plate is fixed on the swivel seat.

[0009] Furthermore, a locking assembly is provided in the swivel seat; the locking assembly includes a pressure plate driven by a pneumatic unit, and three locking shafts are provided on the pressure plate, and the three locking shafts are distributed in a triangular shape on both sides of the supporting arm; the locking shaft is provided with a chamfer for locking the supporting arm.

[0010] Furthermore, the pneumatic unit comprises a rear cover which is sealingly bolted to the rotating seat, an expandable sealing pad is sealingly clamped between the rear cover and the rotating seat; a pressure chamber is provided between the sealing pad and the rear cover; and the pressure chamber is communicated with an external air source.

[0011] Furthermore, the sealing gasket is a rubber gasket.

[0012] Compared with the prior art, the utility model has the beneficial effects of: adopting a three-part independent installation design of a swivel seat, a lifting module and a grinding and polishing module, which facilitates the disassembly and replacement of components and improves the convenience of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 for Figure 1 Left view of .

[0015] Figure 3 It is a structural schematic diagram of the locking assembly in the utility model.

[0016] Figure 4 It is an exploded view of the locking assembly in the utility model.

[0017] Figure 5 It is the installation diagram of the utility model.

[0018] Among them: 1. swivel seat; 2. slider; 3. guide rail; 4. moving plate; 5. connecting seat; 6. lead screw; 7. nut; 8. drive assembly; 9. height limit assembly; 11. pressure plate; 12. locking shaft; 13. back cover; 14. sealing gasket; 15. pressure chamber; 16. retaining ring; 41. U-shaped seat; 81. rotating motor A; 82. synchronous pulley; 83. synchronous belt; 84. gear; 91. limit switch; 92. U-shaped plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention. Example

[0021] See also Figures 1 to 5The utility model provides a modular swingable lifting mechanism, including a swivel seat 1 rotatably arranged on the top of a supporting arm, a movable plate 4 is vertically slidably provided at the front end of the swivel seat 1, and the movable plate 4 is used to install a lifting module and a grinding and polishing module; the lifting module includes a matching lead screw 6 and a nut 7, the lead screw 6 vertically passes through a connecting seat 5, and a driving assembly 8 for driving the lead screw 6 to rotate is provided on the connecting seat 5, and the connecting seat 5 is fixed on the top of the movable plate 4; a vertical notch is provided on the movable plate 4, and the nut 7 is gap-matched with the vertical notch, and the nut 7 is fixed on the swivel seat 1; the grinding and polishing module includes a U-shaped seat 41 for installing a grinding and polishing head, and the U-shaped seat 41 is bolted to the movable plate 4.

[0022] like Figure 5 As shown, a rotating motor B is installed on the U-shaped seat 41, and the rotating motor B is installed vertically downward and drives the rotating input wheel frame body through a belt drive, and a main driving shaft body is arranged on the rotating input wheel frame body; the lower end of the main driving shaft body is connected to the sample holder one or the sample holder two, and a finger-shaped object is vertically arranged on the rotating input wheel frame body accordingly; a reset spring is arranged between the finger-shaped object and the rotating input wheel frame body to complete the construction of the grinding and polishing module.

[0023] Preferably, a plurality of sliding assemblies are provided between the moving plate 4 and the rotating seat 1 , and the sliding assemblies include matching sliders 2 and guide rails 3 , the guide rails 3 are bolted to the moving plate 4 , and the sliders 2 are bolted to the rotating seat 1 .

[0024] As an embodiment of the utility model, the driving assembly 8 includes a synchronous pulley 82 and a gear 84 driven by a synchronous belt 83. The synchronous pulley 82 is driven to rotate by a rotary motor A81, and the rotary motor A81 is fixed on the connecting seat 5; the gear 84 is fixed on the top of the screw 6.

[0025] As an embodiment of the utility model, the swingable lifting mechanism further includes a height limit assembly 9, which includes a limit switch 91 and a U-shaped plate 92, wherein the U-shaped plate 92 is used to trigger the limit switch 91; the limit switch 91 is fixed on the moving plate 4; and the U-shaped plate 92 is fixed on the rotating seat 1. The limit switch 91 moves along the vertical direction with the moving plate 4, and under the limiting action of the U-shaped plate 92, the lowest position and the highest position of the moving plate 4 in the vertical direction can be controlled.

[0026] As an embodiment of the utility model, a locking assembly is provided in the swivel seat 1; the locking assembly includes a pressure plate 11 driven by a pneumatic unit, and three locking shafts 12 are provided on the pressure plate 11, and the three locking shafts 12 are distributed in a triangular shape on both sides of the supporting arm; the locking shaft 12 is provided with a chamfer for locking the supporting arm, so as to facilitate the locking of the grinding and polishing head in the corresponding swing position.

[0027] Preferably, the pneumatic unit comprises a rear cover 13 sealingly bolted to the swivel seat 1, an expandable sealing pad 14 sealingly clamped between the rear cover 13 and the swivel seat 1; a pressure chamber 15 is provided between the sealing pad 14 and the rear cover 13; and the pressure chamber 15 is communicated with an external air source.

[0028] The pneumatic unit here can also be replaced by a pneumatic cylinder, an oil cylinder, an electric push rod, etc., and the details will not be repeated here.

[0029] Preferably, the sealing gasket 14 is a rubber gasket.

[0030] As an embodiment of the utility model, a retaining ring 16 is coaxially provided on the supporting arm. The retaining ring 16 is located at the lower end of the rotating seat 1 to play a supporting role.

[0031] The retaining ring 16 here can be welded to the supporting arm 1, or bolted to the supporting arm 1 by screws, and the details are not repeated here.

[0032] During assembly, first insert the nut 7 in the lifting module from top to bottom into the vertical notch on the moving plate 4 and bolt it to the swivel seat 1. At the same time, bolt the connecting seat 5 to the top of the moving plate 4 to complete the installation of the lifting module. Then, bolt the U-shaped seat 41 in the polishing module to the moving plate 4. There will be no interference between the polishing module and the lifting module. Next, install the guide rail 3 on the moving plate 4 and the slider 2 on the swivel seat 1. At this time, the slider 2 is installed into the guide rail 3 from top to bottom, and the swivel seat 1 is connected to the locking assembly and installed on the top of the supporting arm.

[0033] When disassembling, first remove the rotating motor B on the U-shaped seat 41 and take it out from the bottom of the U-shaped seat 41, then loosen the nut 7 and the connecting seat 5, and the lifting module can be taken out as a whole. Then take out the moving plate 4, and the parts of the polishing module on the moving plate 4 can be unloaded and replaced, or the guide rail 3 on the moving plate 4 and the U-shaped seat 41 can be removed to replace the entire polishing module.

[0034] Through the above improvements, the utility model can realize modular installation and uninstallation and replacement, which is convenient and fast.

[0035] The utility model can be summarized in other specific forms that do not violate the spirit or main features of the utility model. Therefore, no matter from which point of view, the above embodiments of the utility model can only be regarded as an explanation of the utility model and cannot limit the utility model. The claims indicate the scope of the utility model, while the above description does not indicate the scope of the utility model. Therefore, any changes within the meaning and scope equivalent to the claims of the utility model should be considered to be included in the scope of the claims of the utility model.

Claims

1. A modular swingable lifting mechanism, characterized in that: The invention comprises a swivel seat (1) rotatably arranged at the top of a supporting arm, a movable plate (4) being vertically slidably arranged at the front end of the swivel seat (1), and the movable plate (4) being used to install a lifting module and a grinding and polishing module; the lifting module comprises a matching lead screw (6) and a nut (7), the lead screw (6) vertically passing through a connecting seat (5), the connecting seat (5) being provided with a driving assembly (8) for driving the lead screw (6) to rotate, and the connecting seat (5) being fixed to the top of the movable plate (4); a vertical notch being provided on the movable plate (4), the nut (7) being loosely matched with the vertical notch, and the nut (7) being fixed to the swivel seat (1); the grinding and polishing module comprises a U-shaped seat (41) for installing a grinding and polishing head, and the U-shaped seat (41) being bolted to the moving plate (4).

2. The modular swingable lifting mechanism according to claim 1, characterized in that: A plurality of sliding components are provided between the movable plate (4) and the rotating seat (1), wherein the sliding components comprise matching sliders (2) and guide rails (3), wherein the guide rails (3) are bolted to the movable plate (4), and the sliders (2) are bolted to the rotating seat (1).

3. The modular swingable lifting mechanism according to claim 2, characterized in that: The driving assembly (8) comprises a synchronous pulley (82) and a gear (84) driven by a synchronous belt (83); the synchronous pulley (82) is driven to rotate by a rotary motor A (81); the rotary motor A (81) is fixed on the connecting seat (5); and the gear (84) is fixed on the top of the lead screw (6).

4. The modular swingable lifting mechanism according to claim 3, characterized in that: The swingable lifting mechanism further comprises a height limiting assembly (9), the height limiting assembly (9) comprising a limit switch (91) and a U-shaped plate (92), the U-shaped plate (92) being used to trigger the limit switch (91); the limit switch (91) is fixed on the movable plate (4); and the U-shaped plate (92) is fixed on the rotating seat (1).

5. The modular swingable lifting mechanism according to any one of claims 1 to 4, characterized in that: A locking assembly is provided in the swivel seat (1); the locking assembly comprises a pressure plate (11) driven by a pneumatic unit, the pressure plate (11) being provided with three locking shafts (12), the three locking shafts (12) being distributed in a triangular shape on both sides of the supporting arm; the locking shafts (12) are provided with chamfers for locking the supporting arm.

6. The modular swingable lifting mechanism according to claim 5, characterized in that: The pneumatic unit comprises a rear cover (13) sealingly bolted to the rotating seat (1); an expandable sealing pad (14) is sealed and clamped between the rear cover (13) and the rotating seat (1); a pressure chamber (15) is provided between the sealing pad (14) and the rear cover (13); and the pressure chamber (15) is in communication with an external air source.

7. The modular swingable lifting mechanism according to claim 6, characterized in that: The sealing pad (14) is a rubber pad.

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