CN115592510A

CN115592510A - Desk chair corner burr polisher

Info

Publication number: CN115592510A
Application number: CN202211590547.2A
Authority: CN
Inventors: 祁军
Original assignee: Jiangsu Chengxin Teaching Equipment Co ltd
Current assignee: Jiangsu Chengxin Teaching Equipment Co ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-01-13

Abstract

The invention relates to the technical field of grinding machines, in particular to a desk and chair corner burr grinding machine which comprises a first base and a second base which are integrally formed, wherein a grinding mechanism is arranged on the first base, a lifting platform is arranged on the second base, and a clamping mechanism matched with the grinding mechanism is arranged on the lifting platform. According to the invention, the clamping mechanism and the polishing mechanism are arranged, a desk and chair plate needing polishing is placed between the two clamping plates, the abutting plate is driven by the hydraulic rod to move, the two clamping plates are driven to approach each other at the same time until the abutting plate is firstly contacted with the side edge of the plate, after the abutting plate is contacted with the side edge of the plate, the hydraulic rod continues to operate to enable the sliding rod and the sleeve to slide relatively, the spring is compressed until the two clamping plates clamp the plate, so that three-side clamping of the plate is realized, the supporting effect on a workpiece is greatly improved, the plane stability of the workpiece during polishing is better, and the polishing precision is improved.

Description

Desk chair corner burr polisher

Technical Field

The invention relates to the technical field of grinders, in particular to a grinder for burrs of corners of desks and chairs.

Background

The desk and the chair are indispensable teaching facilities in the teaching process of the school, are main tools for students to attend classes and study, are independent at present, and have various varieties, such as drawer type, rocker type and open type, and have advantages and disadvantages.

At present, when rounding is carried out to desk chair corner and is polished, there are following problems: the workpiece is clamped from two opposite directions so as to be kept at a grinding position, but the supporting effect of the two-side clamping on the workpiece is limited, the plane stability is poor and the grinding precision is low during grinding, so that the rounding grinding effect of corners of desks and chairs is poor.

Disclosure of Invention

The invention aims to: in order to solve the problems, the invention provides a desk and chair corner burr grinding machine.

In order to achieve the purpose, the invention adopts the following technical scheme:

a desk and chair corner burr polisher comprises a first base and a second base which are integrally formed, wherein a polishing mechanism is arranged on the first base, a lifting platform is arranged on the second base, and a clamping mechanism matched with the polishing mechanism is arranged on the lifting platform;

the polishing mechanism comprises a base platform fixedly connected with the upper end face of a first base, a disc is connected onto the base platform in a sliding mode, an arc-shaped block is fixedly connected to one side of the disc, a sliding groove matched with the arc-shaped block is formed in the disc on the outer side of the arc-shaped block, a sliding column is connected into the sliding groove in a sliding mode, a first gear is fixedly connected onto the sliding column, teeth meshed with the first gear are arranged on the periphery of the arc-shaped block, a sliding rail and a supporting frame are fixedly connected onto the first base, a sliding block is connected onto the sliding rail in a sliding mode, a first connecting rod is connected onto the sliding block in a rotating mode, one end of the first connecting rod is fixedly connected with the sliding column in a coaxial mode, a first driving motor is arranged on the supporting frame, a sleeve coaxially arranged is fixedly connected to the output end of the first driving motor, a second connecting rod is connected onto the sleeve in a splined mode, the first connecting rod is connected with the second connecting rod through a universal joint, a first polishing block and a second polishing block are arranged on one side, away from the sliding groove, and the first polishing block and the second polishing block are connected with the disc through a telescopic rod;

the fixture include with lift platform up end sliding connection's sliding seat, fixedly connected with link on the sliding seat, two parallel arrangement's of fixedly connected with first support arm on the link, equal fixedly connected with second support arm, two on the link of first support arm both sides all rotate on the first support arm and be connected with the second gear, fixedly connected with hydraulic stem on the link, the output fixedly connected with rack of hydraulic stem, the rack both sides are connected with two second gear meshing respectively, two all rotate on the second support arm and be connected with sector gear, two the rack is kept away from to the second gear one side and is connected with two sector gear meshing respectively, two equal fixedly connected with linking arm on the sector gear, two sector gear one end is kept away from to the linking arm all rotates and is connected with the grip block, hydraulic stem one end is kept away from to the rack is connected with the butt plate through telescopic component, the last drive assembly who drives the sliding seat and remove that is equipped with of lift platform.

Preferably, drive assembly include with lift platform up end fixed connection's support, the swivelling joint has the threaded rod on the support, threaded rod and sliding seat threaded connection, the last second driving motor that is equipped with of lift platform, second driving motor's output and the coaxial fixed connection of threaded rod.

Preferably, flexible subassembly includes slide bar, sleeve and spring, the telescopic open end of slide bar one end embedding, the inside spring that is equipped with of sleeve, the both ends of spring respectively with slide bar one end and telescopic inside end table wall fixed connection, the other end and the butt plate fixed connection of slide bar, slide bar one end and rack fixed connection are kept away from to the sleeve.

Preferably, the first polishing block and the second polishing block are both arranged in an arc shape, and the first polishing block and the second polishing block are both consistent with the arc-shaped distribution angle of the arc-shaped blocks.

Preferably, the opening shape of the sliding groove is matched with the tooth distribution path on the periphery of the arc-shaped block, so that the first gear is always meshed with the teeth on the periphery of the arc-shaped block.

Preferably, the first driving motor and the second driving motor are both servo motors.

Preferably, the clamping plate and the abutting plate are sleeved with rubber sleeves.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. this application is through being equipped with fixture and grinding machanism, place between two grip blocks through the desk chair panel that will polish, it removes to drive the butt plate by the hydraulic stem, it is close to each other to drive two grip blocks simultaneously, until the butt plate earlier with the side contact of panel, after butt plate and panel side contact, the hydraulic stem continues the function and makes slide bar and sleeve take place relative slip, make the spring compressed, it presss from both sides panel tightly to make two grip blocks, thereby realized the trilateral centre gripping to panel, the supporting role to the work piece has been improved greatly, make its plane stability when polishing better, the precision of polishing has been improved.

2. This application is higher through the first sanding block and the second sanding block that are equipped with the arc setting with the laminating area of desk chair panel corner to drive the tooth meshing on the interior extrados of first gear in turn and arc piece through a driving motor, make the disc reciprocating rotation, thereby drive first sanding block and second sanding block and carry out reciprocating rotation and polish, and then improved the radius of desk chair corner effect of polishing.

Drawings

Fig. 1 is a schematic view illustrating an overall structure of a grinding machine according to an embodiment of the present invention;

FIG. 2 illustrates a schematic structural view of a grinding mechanism provided according to an embodiment of the invention;

FIG. 3 illustrates an enlarged view of the structure at A in FIG. 2 in accordance with the present invention;

FIG. 4 is a schematic view of an arc block and chute configuration provided in accordance with an embodiment of the present invention;

FIG. 5 is a schematic diagram of a clamping mechanism provided according to an embodiment of the invention;

FIG. 6 shows an enlarged view of the structure at B in FIG. 5 in accordance with the present invention;

fig. 7 illustrates an exploded view of a telescoping assembly structure provided in accordance with an embodiment of the present invention.

Illustration of the drawings:

1. a first base; 2. a second base; 3. a base table; 4. a disc; 5. an arc-shaped block; 6. a chute; 7. a traveler; 8. a first gear; 9. a slide rail; 10. a slider; 11. a first connecting rod; 12. a universal joint; 13. a second connecting rod; 14. a sleeve; 15. a support frame; 16. a first drive motor; 17. a telescopic rod; 18. a first sanding block; 19. a second sanding block; 20. a lifting platform; 21. a support; 22. a threaded rod; 23. a sliding seat; 24. a second drive motor; 25. a connecting frame; 26. a first support arm; 27. a second support arm; 28. a second gear; 29. a hydraulic lever; 30. a rack; 31. a telescoping assembly; 3101. a slide bar; 3102. a sleeve; 3103. a spring; 32. a butt joint plate; 33. a sector gear; 34. a connecting arm; 35. and (4) clamping the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution:

a desk and chair corner burr polisher comprises a first base 1 and a second base 2 which are integrally formed, wherein a polishing mechanism is arranged on the first base 1, a lifting platform 20 is arranged on the second base 2, and a clamping mechanism matched with the polishing mechanism is arranged on the lifting platform 20; the polishing mechanism comprises a base table 3 fixedly connected with the upper end face of a first base 1, a disc 4 is connected onto the base table 3 in a sliding mode, an arc-shaped block 5 is fixedly connected onto one side of the disc 4, a sliding groove 6 matched with the arc-shaped block 5 is formed in the disc 4 on the outer side of the arc-shaped block 5, a sliding column 7 is connected onto the sliding groove 6 in a sliding mode, a first gear 8 is fixedly connected onto the sliding column 7, teeth meshed with the first gear 8 are arranged on the periphery of the arc-shaped block 5, a sliding rail 9 and a supporting frame 15 are fixedly connected onto the first base 1, a sliding block 10 is connected onto the sliding rail 9 in a sliding mode, a first connecting rod 11 is connected onto the sliding block 10 in a rotating mode, one end of the first connecting rod 11 is fixedly connected with the sliding column 7 in a coaxial mode, a first driving motor 16 is arranged on the supporting frame 15, a sleeve 14 which is coaxially arranged is fixedly connected with an output end of the first driving motor 16, a second connecting rod 13 is connected onto the sleeve 14 in a spline mode, the first connecting rod 11 is connected with the second connecting rod 13 through a universal joint 12, a side, a telescopic rod 18 and a second polishing block 19 are arranged on one side, on the disc 4 far away from the sliding groove 6, and connected with a telescopic rod 4 through a disc polishing block 17; the clamping mechanism comprises a sliding seat 23 connected with the upper end face of the lifting platform 20 in a sliding manner, a connecting frame 25 is fixedly connected onto the sliding seat 23, two first supporting arms 26 which are parallel to each other are fixedly connected onto the connecting frame 25, two second supporting arms 27 are fixedly connected onto the connecting frames 25 at two sides of the first supporting arms 26, second gears 28 are rotatably connected onto the two first supporting arms 26, hydraulic rods 29 are fixedly connected onto the connecting frame 25, racks 30 are fixedly connected onto the output ends of the hydraulic rods 29, two sides of each rack 30 are respectively meshed with the two second gears 28, sector gears 33 are rotatably connected onto the two second supporting arms 27, one sides, far away from the racks 30, of the two second gears 28 are respectively meshed with the two sector gears 33, connecting arms 34 are fixedly connected onto the two sector gears 33, one ends, far away from the sector gears 33, of the two connecting arms 34 are rotatably connected with clamping plates 35, one ends, far away from the hydraulic rods 29, of the racks 30 are connected with abutting plates 32 through telescopic assemblies 31, and a driving assembly for driving the sliding seat 23 to move is arranged on the lifting platform 20. Place between two grip blocks 35 through the desk chair panel that will polish, it removes to drive butt joint board 32 by hydraulic stem 29, it is close to each other to drive two grip blocks 35 simultaneously, until butt joint board 32 earlier with the side contact of panel, after butt joint board 32 and panel side contact, hydraulic stem 29 continues the function and makes the shrink of telescopic component 31, it presss from both sides panel tightly until two grip blocks 35, thereby realized the trilateral centre gripping to panel, the supporting role to the work piece has been improved greatly, make its plane stability when polishing better, the precision of polishing has been improved.

Specifically, as shown in fig. 1, 5 and 7, the driving assembly includes a support 21 fixedly connected to the upper end surface of the lifting platform 20, a threaded rod 22 is rotatably connected to the support 21, the threaded rod 22 is in threaded connection with a sliding seat 23, a second driving motor 24 is disposed on the lifting platform 20, and an output end of the second driving motor 24 is coaxially and fixedly connected to the threaded rod 22. The telescopic assembly 31 comprises a sliding rod 3101, a sleeve 3102 and a spring 3103, wherein one end of the sliding rod 3101 is embedded into the open end of the sleeve 3102, the spring 3103 is arranged inside the sleeve 3102, two ends of the spring 3103 are respectively fixedly connected with one end of the sliding rod 3101 and the inner bottom surface wall of the sleeve 3102, the other end of the sliding rod 3101 is fixedly connected with the abutting plate 32, and one end of the sleeve 3102, which is far away from the sliding rod 3101, is fixedly connected with the rack 30. Through being equipped with lift platform 20 and drive assembly, drive threaded rod 22 through second driving motor 24 and rotate, thereby make sliding seat 23 remove, can go up and down through lift platform 20 simultaneously, remove panel to the work area of first sanding block 18 or second sanding block 19, can set up first sanding block 18 with second sanding block 19 with the axle center symmetry about disc 4 simultaneously, make the intrados of first sanding block 18 with second sanding block 19 set up in opposite directions, when polishing different corners of panel, only need through lift platform 20 and drive assembly adjustment panel's position, and through telescopic link 17 change first sanding block 18 with second sanding block 19 can, need not frequently to carry out the operation of centre gripping and lift off, polishing efficiency has further been improved.

Specifically, as shown in fig. 1, 2, 3 and 4, the first sanding block 18 and the second sanding block 19 are both arranged in an arc shape, and the first sanding block 18 and the second sanding block 19 are both in accordance with the arc distribution angle of the arc-shaped block 5. The opening shape of the sliding groove 6 is matched with the tooth distribution path at the periphery of the arc-shaped block 5, so that the first gear 8 is always meshed with the teeth at the periphery of the arc-shaped block 5. Through the first sanding block 18 and the second sanding block 19 that are equipped with the arc setting, it is higher with the laminating area of desk chair panel corner to drive the tooth meshing on the interior cambered surface of first gear 8 in turn and arc piece 5 through first driving motor 16, make disc 4 reciprocating rotation, thereby drive first sanding block 18 and second sanding block 19 and carry out reciprocating rotation and polish, and then improved the radius of desk chair corner effect of polishing.

Specifically, as shown in fig. 1, 2, 5 and 6, the first driving motor 16 and the second driving motor 24 are both servo motors. Rubber sleeves are sleeved on the clamping plate 35 and the abutting plate 32. The setting of rubber sleeve makes grip block 35 and butt joint board 32 the frictional force increase when carrying out the centre gripping to panel to further improved the centre gripping effect, the setting of rubber sleeve has avoided grip block 35 and butt joint board 32 to cause the damage to panel when the centre gripping simultaneously.

In conclusion, in the corner burr grinding machine for desks and chairs provided by the embodiment, when in use, a board of desks and chairs to be ground is firstly placed between two clamping plates 35, the hydraulic rod 29 drives the rack 30 to move, the rack 30 moves to drive the abutting plate 32 to move until the abutting plate 32 contacts with the side edge of the board, the rack 30 moves and simultaneously drives the second gears 28 on two sides to rotate, the two second gears 28 rotate and drive the two sector gears 33 to rotate, the two sector gears 33 rotate and drive the two clamping plates 35 to approach each other through the connecting arm 34 until the two clamping plates 35 clamp the board, after the abutting plate 32 contacts with the side edge of the board, the rack 30 continues to move to enable the sliding rod 3101 and the sleeve 3102 to slide relatively, so that the spring 3103 is compressed, the first grinding block 18 or the second grinding block 19 is selected according to the corner position to be ground of the board, when the first polishing block 18 is selected to be used, the second polishing block 19 is retracted through the telescopic rod 17, the threaded rod 22 is driven to rotate through the second driving motor 24, so that the sliding seat 23 moves, and simultaneously the lifting platform 20 lifts until the plate moves to a proper area, so that the corner of the plate to be polished is attached to the first polishing block 18, the same is carried out when the second polishing block 19 is selected, then the sleeve 14 is driven to rotate through the first driving motor 16, the first gear 8 is driven to rotate through the transmission of the second connecting rod 13, the universal joint 12, the first connecting rod 11 and the sliding column 7, so that the arc-shaped block 5 meshed with the first gear rotates, the disc 4 is driven to rotate, the sliding column 7 slides in the sliding groove 6, when the disc 4 rotates until the first gear 8 is meshed with the end part of the arc-shaped block 5, the first gear 8 continues to rotate, and the first connecting rod 11 is limited by the sliding block 10 and the sliding rail 9, meanwhile, the sliding column 7 is limited by the sliding chute 6, so that the first gear 8 rotates to be meshed with the teeth on the outer arc surface of the arc block 5 due to the meshing of the teeth on the inner arc surface of the arc block 5, the sliding block 10 slides on the sliding rail 9, the second connecting rod 13 slides relative to the sleeve 14, the first gear 8 is positioned above the arc block 5 when meshed with the inner arc surface of the arc block 5 and positioned below the arc block 5 when meshed with the outer arc surface of the arc block 5, therefore, when the first gear 8 is meshed with the inner arc surface and the outer arc surface of the arc block 5, the rotating directions of the arc block 5 are opposite, the reciprocating rotation of the disc 4 is realized, the first polishing block 18 and the second polishing block 19 are driven to rotate in a reciprocating mode, and the polishing of the corners of the plate is realized.

The previous description of the embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A desk and chair corner burr polisher comprises a first base (1) and a second base (2) which are integrally formed, and is characterized in that a polishing mechanism is arranged on the first base (1), a lifting platform (20) is arranged on the second base (2), and a clamping mechanism matched with the polishing mechanism is arranged on the lifting platform (20);

grinding machanism include with first base (1) up end fixed connection's base (3), sliding connection has disc (4) on base (3), disc (4) one side fixedly connected with arc piece (5), set up on disc (4) in the arc piece (5) outside with arc piece (5) matched with spout (6), sliding connection has traveller (7) in spout (6), fixedly connected with first gear (8) on traveller (7), arc piece (5) periphery is equipped with the tooth with first gear (8) engaged with, fixedly connected with slide rail (9) and support frame (15) on first base (1), sliding connection has slider (10) on slide rail (9), sliding connection has head rod (11) on slider (10), head rod (11) one end is connected with traveller (7) coaxial fixed spline, be equipped with first driving motor (16) on support frame (15), the output fixedly connected with of first driving motor (16) has coaxial setting's sleeve pipe (14), be equipped with between second connecting rod (12) and second connecting rod (13) and grinding joint (13) and go up through second carriage (13) connecting rod (13), second carriage (13) and sliding connection (13) are equipped with first driving motor (16) on one side and play ) The first polishing block (18) and the second polishing block (19) are connected with the disc (4) through telescopic rods (17);

the clamping mechanism comprises a sliding seat (23) which is in sliding connection with the upper end surface of the lifting platform (20), the sliding seat (23) is fixedly connected with a connecting frame (25), the connecting frame (25) is fixedly connected with two first support arms (26) which are arranged in parallel, the connecting frames (25) at the two sides of the first supporting arm (26) are fixedly connected with second supporting arms (27), the two first supporting arms (26) are rotatably connected with second gears (28), a hydraulic rod (29) is fixedly connected to the connecting frame (25), the output end of the hydraulic rod (29) is fixedly connected with a rack (30), the two sides of the rack (30) are respectively meshed with two second gears (28), the two second support arms (27) are respectively connected with sector gears (33) in a rotating mode, one sides, far away from the rack (30), of the two second gears (28) are respectively meshed with the two sector gears (33), the two sector gears (33) are respectively and fixedly connected with connecting arms (34), one ends, far away from the sector gears (33), of the two connecting arms (34) are respectively and rotatably connected with clamping plates (35), one end of the rack (30) far away from the hydraulic rod (29) is connected with a butt plate (32) through a telescopic component (31), the lifting platform (20) is provided with a driving component for driving the sliding seat (23) to move.

2. A desk and chair corner burr polisher according to claim 1, characterized in that the driving assembly comprises a bracket (21) fixedly connected with the upper end face of the lifting platform (20), a threaded rod (22) is rotatably connected to the bracket (21), the threaded rod (22) is in threaded connection with the sliding seat (23), a second driving motor (24) is arranged on the lifting platform (20), and the output end of the second driving motor (24) is coaxially and fixedly connected with the threaded rod (22).

3. The desk and chair corner burr polisher according to claim 2, wherein the telescopic assembly (31) comprises a sliding rod (3101), a sleeve (3102) and a spring (3103), one end of the sliding rod (3101) is embedded into the open end of the sleeve (3102), the spring (3103) is arranged inside the sleeve (3102), two ends of the spring (3103) are fixedly connected with one end of the sliding rod (3101) and the inner bottom surface wall of the sleeve (3102), the other end of the sliding rod (3101) is fixedly connected with the abutting plate (32), and one end of the sleeve (3102) far away from the sliding rod (3101) is fixedly connected with the rack (30).

4. A desk and chair corner burr polisher according to claim 1 characterized in that the first polishing block (18) and the second polishing block (19) are arranged in an arc shape, and the first polishing block (18) and the second polishing block (19) are arranged in the same angle with the arc shape of the arc-shaped block (5).

5. A desk and chair corner burr polisher according to claim 4 characterized in that the opening of the chute (6) is shaped to match the tooth distribution path at the periphery of the arc block (5) so that the first gear (8) is always engaged with the teeth at the periphery of the arc block (5).

6. A desk and chair corner burr polisher according to claim 2 characterized in that the first drive motor (16) and the second drive motor (24) are servo motors.

7. A desk and chair corner burr grinding machine according to claim 1, characterized in that said clamping plate (35) and said abutting plate (32) are sleeved with rubber sleeves.