Polishing and grinding device for mahjong table board

Abstract

The utility model belongs to the technical field of mahjong table production, and particularly relates to a mahjong table board polishing and grinding device which comprises a working table, a mounting bolt, a clamping mechanism, a moving seat, a cantilever, a rotating disc and a grinding roller, and a servo motor drives a lead screw to achieve transverse movement of the moving seat. The clamping mechanism comprises a lifting screw rod, an adjusting block, an extending block and a clamping wedge-shaped block, and is matched with a spring to fix the mahjong table plate, so that the mahjong table plate is suspended above the through groove and is stable in position; the movable seat realizes angle adjustment and position adjustment of a grinding roller through a cantilever and a turntable, and the grinding roller is driven by a grinding motor to accurately grind the rear side edge of the mahjong table board; through the transverse movement of the moving seat and the fixing function of the clamping mechanism, the device can quickly finish machining of the other side by rotating the mahjong table by 90 degrees after single-side grinding, and frequent disassembly and assembly operation is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mahjong table production technical field, concretely relates to a mahjong table board polishing and grinding device. BACKGROUND

[0002] In the field of furniture manufacturing and assembly, the processing of mahjong table boards is an important process. The surface and side edges of mahjong table boards need to be polished and ground to ensure their surface smoothness and edge aesthetics. However, in traditional processing technology, the fixing and rotation of mahjong table boards often have certain problems. In the prior art, the commonly used clamping and positioning mechanisms often cannot provide flexible edge grinding capability while fixing the mahjong table board, leading to the following problems:

[0003] 1. Instability of fixation: The existing devices often use simple clamps to fix mahjong table boards, which cannot guarantee the stability of mahjong table boards during processing, which may cause deviations in processing accuracy.

[0004] 2. Lack of polishing flexibility: Traditional polishing equipment can only perform flat polishing, and has poor adaptability to the processing of mahjong table board side edges and corner areas, making it difficult to meet the needs of fine polishing at multiple angles and positions.

[0005] 3. Low efficiency: Due to the lack of efficient rotation and multi-edge polishing functions in existing devices, workpieces need to be frequently disassembled and repositioned, significantly reducing processing efficiency.

[0006] The above problems limit the consistency of mahjong table board processing quality and production efficiency, which is not conducive to meeting the market demand for high-quality mahjong table boards. SUMMARY

[0007] To solve the problems in the prior art, the utility model aims to provide a mahjong table board polishing and grinding device that can effectively solve the instability of fixation, lack of polishing flexibility, and low efficiency in traditional technology through innovative clamping and positioning mechanisms and flexible angle adjustment and movement functions.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions:

[0009] The utility model provides a mahjong table board polishing and grinding device, including workbench and mahjong table board, the surface rear side of workbench is laterally provided with through groove, the rear side of workbench upper surface is provided with boss, the inside rotation of boss is provided with lead screw, one end of boss is provided with servo motor, one end of lead screw is installed on servo motor output shaft, the boss is located in the rear side of through groove, the center of workbench upper surface is provided with mounting peg, the mahjong table board is set on mounting peg, the inside of mounting peg is hollow, the lateral surface of mounting peg is evenly provided with three open slots, the inside of mounting peg is installed with clamping mechanism, and the clamping mechanism is used for extruding and fixing mahjong table board, the rear side edge of mahjong table board corresponds with through groove, the upper surface of boss is slidably installed with moving seat, the section of moving seat is L type, the moving seat is screwed on lead screw, the front side of moving seat is provided with front extension cylinder, the front installation of front extension cylinder is provided with cantilever, the front end of cantilever is provided with fixed disc, the one side surface of fixed disc is rotatably installed with rotary table, and the side of rotary table away from fixed disc is fixed with mounting seat.

[0010] Further, the upper surface of the mounting seat is fixed with a polishing motor, the output shaft of the polishing motor penetrates the mounting seat, the output end of the polishing motor is provided with a polishing roller, the polishing roller penetrates the through groove, and the polishing roller polishes the rear side edge of the mahjong table board.

[0011] Further, the inside of the front extension cylinder is rotatably installed with an adjusting screw, the front end of the adjusting screw is screwed in the inside of the cantilever, the rear end of the adjusting screw is provided with a knob, and the knob is located on the rear side surface of the moving seat.

[0012] Further, the surface of the rotary table is evenly provided with positioning holes, a plurality of positioning holes are distributed in a fan shape, a fixing peg is inserted and pulled out below the rear side of the fixed disc, and the end of the fixing peg is matched with the inner size of the positioning hole.

[0013] Further, the clamping mechanism comprises a lifting screw rotatably installed in the inside of the mounting peg, the lifting screw penetrates the upper surface of the mounting peg, an adjusting block is screwed on the surface of the lifting screw, and the adjusting block is located in the inside of the mounting peg.

[0014] Further, the surface of the adjusting block is evenly provided with extension blocks, the extension blocks penetrate the open slots, the end of the extension block is flush with the outer surface of the mounting peg, and the inside of the extension block is hollow with an open end.

[0015] Further, the end of the extension block is slidably penetrated with a clamping wedge block, the end of the clamping wedge block is provided with an inclined surface, three clamping wedge blocks extrude and fix the upper surface of the mahjong table board, a spring is placed in the inside of the extension block, and the end of the spring is in contact with the end surface of the clamping wedge block.

[0016] Compared with the prior art, the mahjong table board polishing and grinding device has the advantages that

[0017] The mahjong table plate polishing and grinding device provided by the utility model effectively solves the problem of unstable fixation of the mahjong table plate.

[0018] The mobile seat, the cantilever, the turntable and the grinding roller are arranged, flexible polishing adjustment of the edge of the mahjong table plate is realized, the mobile seat is matched with the lead screw, transverse stable movement can be realized, the cantilever can be adjusted in length by the adjusting screw, and the turntable can be positioned at multiple angles by the fan-shaped distribution of the fixing bolt and the positioning hole.

[0019] The utility model drives the lead screw by the servo motor, realizes the automation control of the mobile seat, and remarkably improves the processing efficiency. DRAWINGS

[0020] Figure 1 It is the installation three-dimensional structure schematic diagram of the utility model;

[0021] Figure 2 It is the fixed bolt section structure schematic diagram of the utility model;

[0022] Figure 3 It is the clamping mechanism structure schematic diagram of the utility model;

[0023] Figure 4 It is the mobile seat and the grinding roller installation structure schematic diagram of the utility model;

[0024] Figure 5 It is the three-dimensional machine schematic diagram of the utility model. Figure 4

[0025] In the drawings, the component list represented by each sign is as follows:

[0026] ​1, workbench; 11, through slot; 12, boss; 13, mounting bolt; 14, open slot; 2, lead screw; 21, servo motor; 3, mahjong table plate; 4, clamping mechanism; 41, lifting screw; 42, adjusting block; 43, extension block; 44, clamping wedge block; 45, spring; 5, moving seat; 51, front extension cylinder; 6, adjusting screw; 7, cantilever; 71, fixed disc; 72, fixed bolt; 8, turntable; 81, positioning hole; 82, mounting seat; 9, polishing motor; 91, polishing roller. DETAILED DESCRIPTION

[0027] In order to make the purpose and advantages of the utility model more clear and obvious, the utility model is specifically described below in combination with examples. It should be understood that the following text is only used to describe one or several specific embodiments of the utility model, and does not strictly limit the specific protection scope requested by the utility model.

[0028] Reference Figures 1-5 As shown in the figure, a mahjong table plate polishing device, comprising a workbench 1 and a mahjong table plate 3; the surface of the workbench 1 is provided with a through slot 11 on the rear side, which is used to provide the polishing operation space for the rear side edge of the mahjong table plate 3; the upper surface of the workbench 1 is provided with a boss 12 on the rear side, which is used to install and support the lead screw 2 and the servo motor 21; the boss 12 is internally provided with the lead screw 2 which is horizontally rotatably installed, and the two ends of the lead screw 2 are fixed to the boss 12 through bearings to ensure its stable rotation; one end of the boss 12 is provided with the servo motor 21, and the servo motor 21 is connected to the lead screw 2 through an output shaft, which is used to drive the lead screw 2 to rotate to drive the moving seat 5 to slide; the boss 12 is arranged on the rear side of the through slot 11, which is convenient for the distribution of the processing area; the upper surface of the workbench 1 is provided with a mounting bolt 13 at the center, which is used to position and fix the mahjong table plate 3; the mahjong table plate 3 is sleeved on the mounting bolt 13, and the mounting bolt 13 is hollow designed to reduce the structure weight; the side surface of the mounting bolt 13 is uniformly provided with three open slots 14, which are used for the sliding of the extension block 43; the mounting bolt 13 is internally provided with the clamping mechanism 4, which is used to extrude and fix the mahjong table plate 3 to ensure the stability; the rear side edge of the mahjong table plate 3 corresponds to the through slot 11, which is convenient for subsequent polishing operation; the moving seat 5 is slidably installed on the upper surface of the boss 12, and the cross section of the moving seat 5 is L-shaped, which is convenient for structure stability and space utilization; the moving seat 5 is screwed on the lead screw 2 and horizontally moves through the driving of the servo motor 21; the front side of the moving seat 5 is provided with a front extension cylinder 51 above, which is used to support the cantilever 7; the cantilever 7 is mounted forward of the front extension cylinder 51, and the cantilever 7 is provided with a fixed disc 71 at the front end, which is used to connect the turntable 8 and provide the adjusting basis; the turntable 8 is rotatably installed on one side surface of the fixed disc 71, which is convenient for adjusting the angle of the polishing roller 91; the mounting seat 82 is fixed to the side of the turntable 8 away from the fixed disc 71, which is used to install the polishing motor 9 and provide support.

[0029] Reference Figure 1 、 Figure 4 and Figure 5 As shown in the figure, the upper surface of the mounting seat 82 is fixed with a polishing motor 9, which is the core power device; the output shaft of the polishing motor 9 penetrates the mounting seat 82 to ensure stable transmission of the polishing roller 91; the output end of the polishing motor 9 is provided with a polishing roller 91, which penetrates the through slot 11 and corresponds to the rear edge of the mahjong table plate 3; the polishing roller 91 accurately polishes the rear edge of the mahjong table plate 3, and different processing requirements are realized by adjusting the motor speed.

[0030] Reference Figure 5 As shown in the figure, the inside of the front extension cylinder 51 is rotatably provided with an adjusting screw 6, which is used to adjust the extension length of the cantilever 7; the front end of the adjusting screw 6 is screwed into the inside of the cantilever 7, and precise adjustment is realized by rotation; the rear end of the adjusting screw 6 is provided with a knob, which is placed on the rear surface of the moving seat 5 for easy manual operation.

[0031] Reference Figure 4 and Figure 5 As shown in the figure, a plurality of positioning holes 81 are uniformly provided on the lower surface of the rotating disc 8, and the positioning holes 81 are distributed in a fan shape to realize multi-angle positioning of the rotating disc 8; a fixing bolt 72 is inserted into the lower rear side of the fixed disc 71, and the fixing bolt 72 is used to lock the angle of the rotating disc 8; the end of the fixing bolt 72 is matched with the inner size of the positioning hole 81 to ensure the positioning accuracy.

[0032] Reference Figure 2 and Figure 3 As shown in the figure, the clamping mechanism 4 includes a lifting screw 41 which is vertically rotated in the inside of the mounting bolt 13, and the lifting screw 41 is connected with the adjusting block 42 through threads to realize vertical adjustment; the lifting screw 41 penetrates the upper surface of the mounting bolt 13 and cooperates with the inner wall of the mounting bolt 13; the surface of the lifting screw 41 is screwed with the adjusting block 42, which is placed in the inside of the mounting bolt 13 to drive the movement of the extension block 43.

[0033] Reference Figure 2 and Figure 3 As shown in the figure, the surface of the adjusting block 42 is uniformly provided with the extension block 43, which penetrates the open slot 14 and forms a flush structure with the side surface of the mounting bolt 13; the hollow end of the extension block 43 is open, providing installation space for the clamping wedge block 44; the end of the extension block 43 is slidably penetrated by the clamping wedge block 44, and the upper end of the end of the clamping wedge block 44 is provided with an inclined surface, which is designed to facilitate the compression and fixation of the mahjong table plate 3; the three clamping wedge blocks 44 extrude and fix the upper surface of the mahjong table plate 3 to ensure the stability of the mahjong table plate 3; the inside of the extension block 43 is placed with a spring 45, and the end of the spring 45 is in contact with the end surface of the clamping wedge block 44, and the spring 45 provides an outward force to realize the automatic reset function.

[0034] The working principle of the utility model is: when using, the existence of spring 45 makes the clamping wedge block 44 have outward force, and exceeds the end surface of extension block 43, at this time, the end of extension block 43 is placed outside installation peg 13, then mahjong table board 3 is installed on the upper surface of workbench 1, and the through hole in the center of mahjong table board 3 is sleeved on installation peg 13, when mahjong table board 3 is installed downward, the clamping wedge block 44 can be extruded to make the clamping wedge block 44 move to the inside of extension block 43, when mahjong table board 3 is installed in place, the clamping wedge block 44 will automatically pop out and be placed above mahjong table board 3, then rotating lifting screw rod 41 controls adjusting block 42 to move downward, so as to extrude and limit mahjong table board 3, guarantee the stability of the position of mahjong table board 3, and when fixing, make the rear side of mahjong table board 3 parallel and hang in air above through groove 11;

[0035] According to the polishing requirement, the angle of polishing roller 91 is adjusted, rotating disc 8 is rotated to control the angle of polishing roller 91, then the cooperation of fixing bolt 72 and corresponding positioning hole 81 is kept fixed, rotating adjusting screw rod 6 can control the distance of cantilever 7, then the position of polishing roller 91 and mahjong table board 3 is controlled, through the adjustment of angle and distance, different polishing requirements can be adapted, starting servo motor 21 drives lead screw 2 to rotate, so as to make mobile seat 5 move horizontally, then the rear side of mahjong table board 3 is polished, after the polishing of one side is finished, mobile seat 5 is moved to the end, does not hinder the rotation of mahjong table board 3, then the clamping mechanism 4 is loosened, then mahjong table board 3 is rotated by 90 degrees, so as to polish the other side.

[0036] The above only is the preferred implementation of the utility model, it should be pointed out that, for ordinary skilled person in the art, on the premise of not departing from the principle of the utility model, can make a number of improvements and refinements, these improvements and refinements also should be regarded as the protection scope of the utility model.The structure, device and operation method not specifically described and explained in the utility model, such as no special description and limitation, are implemented according to the conventional means in the art.

Claims

1. A mahjong table plate polishing and grinding device, comprising a workbench (1) and a mahjong table plate (3), characterized in that: The workbench (1) surface rear side is provided with a through groove (11), the workbench (1) upper surface rear side is provided with a boss (12), the boss (12) is internally transversely rotatably installed with a lead screw (2), one end of the boss (12) is provided with a servo motor (21), one end of the lead screw (2) is installed on the output shaft of the servo motor (21), the boss (12) is placed on the rear side of the through groove (11), the upper surface of the workbench (1) is provided with a mounting bolt (13), the mahjong table plate (3) is sleeved on the mounting bolt (13), the mounting bolt (13) is hollow, the mounting bolt (13) is uniformly provided with three open grooves (14) on the side surface, the mounting bolt (13) is internally installed with a clamping mechanism (4), the clamping mechanism (4) is used for extruding and fixing the mahjong table plate (3), the rear side edge of the mahjong table plate (3) corresponds to the through groove (11), the upper surface of the boss (12) is slidably installed with a moving seat (5), the moving seat (5) is L-shaped in cross section, the moving seat (5) is screwed on the lead screw (2), the front side of the moving seat (5) is provided with a front extension cylinder (51), the front extension cylinder (51) is forwardly installed with a cantilever (7), the cantilever (7) is provided with a fixed disc (71) at the front end, the fixed disc (71) is rotatably installed with a rotating disc (8) on one side surface, the rotating disc (8) is fixed with a mounting seat (82) on the side away from the fixed disc (71).

2. The mahjong table plate polishing and grinding device according to claim 1, characterized in that: The upper surface of the mounting seat (82) is fixedly provided with a polishing motor (9), the output shaft of the polishing motor (9) penetrates the mounting seat (82), the output end of the polishing motor (9) is provided with a polishing roller (91), the polishing roller (91) penetrates the through groove (11), and the polishing roller (91) polishes the rear side edge of the mahjong table plate (3).

3. The mahjong table plate polishing and grinding device according to claim 2, characterized in that: The inside of the front extension cylinder (51) is rotatably installed with an adjusting screw (6), the front end of the adjusting screw (6) is screwed in the inside of the cantilever (7), the rear end of the adjusting screw (6) is provided with a knob, and the knob is placed on the rear side surface of the moving seat (5).

4. The mahjong table plate polishing and grinding device according to claim 3, characterized in that: The surface of the rotating disc (8) is uniformly provided with a positioning hole (81) below, a plurality of positioning holes (81) are distributed in a fan shape, a fixed bolt (72) is inserted and pulled out below the rear side of the fixed disc (71), and the end of the fixed bolt (72) is matched with the inner size of the positioning hole (81).

5. The mahjong table plate polishing and grinding device according to claim 1, characterized in that: The clamping mechanism (4) comprises a lifting screw (41) which is vertically rotatable in the inside of the mounting bolt (13), the lifting screw (41) penetrates the upper surface of the mounting bolt (13), the surface of the lifting screw (41) is screwed with an adjusting block (42), and the adjusting block (42) is placed in the inside of the mounting bolt (13).

6. The mahjong table plate polishing and grinding device according to claim 5, characterized in that: The surface of the adjusting block (42) is uniformly provided with an extension block (43), the extension block (43) penetrates the open groove (14), the end of the extension block (43) is flush with the outer surface of the mounting bolt (13), and the inside of the extension block (43) is hollow with an open end.

7. The mahjong table plate polishing and grinding device according to claim 6, characterized in that: The end of the extension block (43) is slidably penetrated with a clamping wedge block (44), the end of the clamping wedge block (44) is provided with an inclined surface above, three The clamping wedge (44) extrudes and fixes the upper surface of the mahjong table board (3), and the extension block (43) has a spring (45) placed inside, The end of the spring (45) is in contact with the end face of the clamping wedge (44).

Images