A device for auxiliary grinding of arc angle of household cabinet

Abstract

The present invention relates to the technical field of wood processing, and in particular to an auxiliary grinding device for the arc angle of a household cabinet, comprising a processing table, a support seat being fixedly connected to the center position of the top of the processing table, a first sliding frame being fixedly connected to the four ends of the processing table, a first movable block being slidably connected inside the first sliding frame, a first hydraulic cylinder being fixedly installed on the first sliding frame, and a connecting frame being fixedly connected to the first movable block; the present invention improves the grinding efficiency of the arc angle of a wooden board and reduces the processing steps of the wooden board by simultaneously performing the end angle grinding and the edge corner grinding of a wooden board, and by cooperating with the yielding mechanism to yield the edge corner grinding mechanism, the wooden board is ensured to be effectively limited while the edge corners are being ground, thereby avoiding position movement and repositioning during the processing of the wooden board.

Description

Technical Field

[0001] The invention relates to the technical field of wood processing, and in particular to a device for auxiliary grinding of arc angles of household cabinets. Background Art

[0002] A cabinet is a platform for storing kitchenware and cooking in the kitchen. It uses brighter colors and consists of five major parts: cabinet body, door panels, hardware, countertops, and electrical appliances. The cabinet body and door panels of a home cabinet are usually assembled and fixed with wooden boards. Before assembling the wooden boards, it is usually necessary to grind the wooden boards to reduce the damage caused by bumps during use.

[0003] The patent document with announcement number CN113231935B announces a surface finishing and polishing machine for wooden boards in furniture manufacturing, including a base plate, a placing device and a polishing device. The upper end of the base plate is equipped with a placing device and a polishing device in sequence from left to right, and the polishing device slides with the placing device; the polishing device includes a square frame, a cleaning plate, a transmission roller, a driving motor, a driven mechanism, an auxiliary roller, a pressing mechanism, a clamping mechanism and a polishing belt. The upper end of the base plate is equipped with a square frame through a supporting column, and sliding grooves are symmetrically opened at the inner ends of the two side walls of the square frame near the upper side, and sliding grooves are symmetrically opened at the middle of the inner ends of the two side walls of the square frame, and a cleaning plate is installed at the right end of the square frame.

[0004] In the prior art, when processing wooden boards for assembling home cabinets, it is usually necessary to grind the four end corners of the wooden boards, and then continue to grind the edge corners of both sides. The prior art usually performs the end corner grinding and the edge corner grinding in sequence, which reduces the grinding efficiency and increases the processing steps, and causes the wooden boards to be positioned twice during processing, thereby increasing the preparation work during the grinding process. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a home cabinet arc angle auxiliary grinding device.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: an auxiliary grinding device for the arc angle of a household cabinet, comprising a processing table, a support seat is fixedly connected to the center position of the top of the processing table, the four ends of the processing table are fixedly connected to a first sliding frame, the first sliding frame is slidably connected to a first movable block, a first hydraulic cylinder is fixedly installed on the first sliding frame, the piston shaft of the first hydraulic cylinder is fixedly connected to the corresponding first movable block, the first movable block is fixedly connected to a connecting frame, and the connecting frame is connected to a limiting mechanism and an end angle grinding mechanism;

[0007] A second sliding frame is provided on both sides of the top of the processing table, and a second movable block is slidably connected inside the second sliding frame. A second hydraulic cylinder is fixedly installed on the second sliding frame, and a piston shaft of the second hydraulic cylinder is fixedly connected to the corresponding second movable block. The second movable blocks are connected with edge and corner grinding mechanisms, the second sliding frame is connected with a fitting moving mechanism, and the first movable block is connected with a matching and giving way mechanism.

[0008] Preferably, the limiting mechanism includes a limiting frame, which is fixedly connected to the inside of the connecting frame, and the limiting frame includes two vertical limiting segments and two horizontal limiting segments, and the two vertical limiting segments are both located between the two horizontal limiting segments and at the upper and lower ends of the two horizontal limiting segments.

[0009] Preferably, the end angle grinding mechanism includes an arc bracket, which is fixedly connected to the top of the limit frame, and an arc groove is provided on the arc bracket, and a circular pin is slidably connected to the inside of the arc groove, and a first reciprocating file is fixedly connected to the bottom of the circular pin, and a first rotating file is fixedly connected to the output end of the bottom of the first reciprocating file, and the first rotating file is cylindrical in shape, and an arc bar is fixedly connected to the top of the arc bracket, and a limiting arc groove is provided on the top of the circular pin, and the arc bar is slidably connected to the inside of the limiting arc groove, and a mounting plate is fixedly connected to one side of the arc bracket, and a swing cylinder is fixedly installed on the mounting plate, and a toggle bar is fixedly connected to the piston shaft of the swing cylinder, and a strip groove is provided on the toggle bar, and the circular pin is sleeved in the strip groove, and the output shaft of the swing cylinder and the arc groove are coaxially arranged.

[0010] Preferably, the edge and corner grinding mechanism includes a mounting frame, the mounting frame is fixedly connected to the top of the second movable block, a second reciprocating file is fixedly mounted on the mounting frame, a second rotary file is fixedly connected to the output end of the second reciprocating file, and the second rotary file is a cylindrical concave shape.

[0011] Preferably, the fitting moving mechanism includes an annular slide rail, which is fixedly connected to the top of the processing table. Two slide seats are slidably connected to the annular slide rail, and the second sliding frames are fixedly connected to the corresponding tops of the slide seats. The four ends of the annular slide rail are respectively coaxially arranged with the arc groove above.

[0012] Preferably, the cooperating yielding mechanism includes two laser sensors and four L-shaped shielding strips, the two laser sensors are respectively fixedly mounted on the bottom of the two second sliding frames, the four L-shaped shielding strips are all fixedly connected to the top of the processing table, and the four ends of the annular slide rail are respectively coaxially arranged with the corresponding arc ends of the L-shaped shielding strips.

[0013] Preferably, a bottom plate is fixedly connected to the lower part of the connecting frame, a clamping strip is arranged above the bottom plate, both ends of the clamping strip are fixedly connected to movable strips, movable grooves are arranged on both sides of the connecting frame, the two movable strips are slidably connected to the corresponding movable grooves, a circular rod is fixedly connected to the inside of the movable groove, the circular rods are slidably inserted on the corresponding movable strips, a spring is sleeved on the circular rod, the two ends of the spring are fixedly connected to the corresponding top of the movable strip and the top surface of the movable groove, one end of the two movable strips is fixedly connected to a guide pin, and both sides of the first sliding frame are A limit plate is fixedly connected, a horizontal groove and a guide groove are provided on one side of the limit plate, the guide groove includes a horizontal section and an inclined section, the horizontal section is located above the horizontal groove and parallel to the horizontal groove, one end of the inclined section is connected to the horizontal groove, a vertical groove is provided on the limit plate, the vertical groove is located between the horizontal groove and the guide groove, one end of the horizontal groove and one end of the horizontal section are both connected to the vertical groove, a guide plate is hinged at the connection between the inclined section and the horizontal groove, the guide plate is parallel to the inclined section, and one end of the guide pin is located at the corresponding connection between the horizontal groove and the vertical groove.

[0014] Preferably, a plurality of spherical grooves are provided on the top of the support seat, and contact balls are rollingly connected inside the spherical grooves.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The end angle grinding and edge corner grinding of the wooden board are carried out simultaneously to improve the grinding efficiency of the arc angle of the wooden board and reduce the processing procedures of the wooden board. In addition, by coordinating the yielding mechanism to the edge and corner grinding mechanism, the wooden board is effectively limited while the edge and corner are being ground, thereby avoiding the position movement and repositioning of the wooden board during the processing process, and reducing the preparation work during the grinding process of the wooden board.

[0017] 2. The first reciprocating file drives the first rotary file to rotate, and the piston shaft of the swing cylinder drives the toggle bar to rotate, and the circular pin is limited by the bar groove on the toggle bar, so that the circular pin moves along the inside of the arc groove, and the sliding connection between the arc bar and the limiting arc groove prevents the circular pin from rotating when moving inside the arc groove. When the first rotary file rotates, it moves along the arc groove trajectory, thereby performing arc grinding on the end corner of the wooden board, and separating the tip position and the arc grinding position, thereby performing arc angle grinding on the end corner of the wooden board.

[0018] 3. The ranging of the laser sensor is blocked by an L-shaped shielding strip so that the laser sensor detects the corresponding ranging length, and the L-shaped shielding strip and the arc end of the annular slide rail are coaxially arranged so that the ranging length of the laser sensor remains unchanged when it moves through the corresponding L-shaped shielding strip. After receiving the specific ranging signal of the laser sensor, the controller connected to the laser sensor controls the corresponding first hydraulic cylinder to work in reverse, thereby releasing the limit of the wooden board at the corner grinding position, until the laser sensor moves out of the corresponding L-shaped shielding strip, and the controller connected to the laser sensor no longer receives the specific ranging signal, thereby re-limiting the wooden board.

[0019] 4. When the clamping strip moves to the top of the end corner of the wooden board, the guide pin moves to the connection point of the vertical groove and the horizontal section, and the guide pin moves vertically downward along the vertical groove through the elastic action of the spring, and finally moves to the connection point of the vertical groove and the horizontal groove, so that the clamping strip is elastically pressed on the top of the end corner of the wooden board. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 For the present invention Figure 1 A schematic diagram of the structure enlargement at point A;

[0022] Figure 3 For the present invention Figure 1 A schematic diagram of the structure at B in FIG.

[0023] Figure 4 It is a schematic diagram of the coordination structure of the first sliding frame, the connecting frame and the limiting frame of the present invention (the limiting plate on one side is cut);

[0024] Figure 5 For the present invention Figure 4 A schematic diagram of the structure at position C in FIG.

[0025] Figure 6 It is a schematic diagram of the matching structure of the arc-shaped support and the first reciprocating file of the present invention;

[0026] Figure 7 It is a schematic diagram of the matching structure of the second sliding frame, the second reciprocating file and the sliding seat of the present invention;

[0027] Figure 8 It is a schematic diagram of the structure of the limiting plate of the present invention;

[0028] Fig. 9 It is a schematic diagram of the matching structure of the limit frame and the arc-shaped bracket of the present invention;

[0029] Fig.10 This is a schematic diagram of the structure of the present invention in cooperation with a wooden board.

[0030] In the figure: 1, processing table; 2, support seat; 3, first sliding frame; 4, first movable block; 5, first hydraulic cylinder; 6, connecting frame; 7, second sliding frame; 8, second movable block; 9, second hydraulic cylinder; 10, limit frame; 1001, vertical limit section; 1002, horizontal limit section; 11, arc bracket; 12, arc groove; 13, round pin; 1301, limit arc groove; 14, first reciprocating file; 15, first rotary file; 16, arc strip; 17, mounting plate; 18, swing cylinder; 19, toggle strip; 20. Strip groove; 21. Mounting frame; 22. Second reciprocating file; 23. Second rotary file; 24. Annular slide rail; 25. Slide seat; 26. Laser sensor; 27. L-shaped shielding strip; 28. Bottom plate; 29. ​​Clamping strip; 30. Movable strip; 31. Movable groove; 32. Round rod; 33. Spring; 34. Guide pin; 35. Limit plate; 36. Horizontal groove; 37. Guide groove; 3701. Horizontal section; 3702. Inclined section; 38. Vertical groove; 39. Guide plate; 40. Spherical groove; 41. Contact ball. DETAILED DESCRIPTION

[0031] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0032] like Figures 1 to 10 The device for auxiliary grinding of arc angle of household cabinets shown in the figure comprises a processing table 1, a support seat 2 is fixedly connected to the center position of the top of the processing table 1, four ends of the processing table 1 are fixedly connected to a first sliding frame 3, the interior of the first sliding frame 3 is slidably connected to a first movable block 4, a first hydraulic cylinder 5 is fixedly installed on the first sliding frame 3, a piston shaft of the first hydraulic cylinder 5 is fixedly connected to the corresponding first movable block 4, the first movable blocks 4 are fixedly connected to a connecting frame 6, and the connecting frame 6 is connected to a limiting mechanism and an end angle grinding mechanism;

[0033] A second sliding frame 7 is provided on both sides of the top of the processing table 1, and a second movable block 8 is slidably connected inside the second sliding frame 7. A second hydraulic cylinder 9 is fixedly installed on the second sliding frame 7, and the piston shaft of the second hydraulic cylinder 9 is fixedly connected to the corresponding second movable block 8. The second movable blocks 8 are all connected with an edge grinding mechanism, and the second sliding frame 7 is connected with a fitting moving mechanism, and the first movable block 4 is connected with a matching giving way mechanism. When working, the prior art usually needs to grind the four end corners of the wooden board for assembling home cabinets, and continue to grind the arc angles of the corners of both sides after grinding the end angles. The prior art usually performs the end angle grinding and the edge corner grinding in sequence, from This reduces the grinding efficiency and increases the processing steps, and causes the wooden board to be positioned twice during processing, thereby increasing the preparation work during the grinding process; the technical solution can solve the above problems, and the specific working method is as follows: the wooden board for grinding is placed on the top of the support seat 2, and the piston shafts of the four first hydraulic cylinders 5 are moved synchronously, so that the first movable blocks 4 are all moved along the corresponding first sliding frame 3 toward the processing table 1, and the connecting frame 6 is driven to move synchronously, so that the positioning and clamping mechanisms on the four connecting frames 6 synchronously limit the four end corners of the wooden board, and then the four end corners of the wooden board are ground at an arc angle through the action of the end angle grinding mechanism. While the four end corners of the wooden board are being polished at an arc angle, the piston shafts of the two second hydraulic cylinders 9 move synchronously, thereby driving the second movable block 8 to move along the corresponding second sliding frame 7 toward the side of the wooden board, and the corner polishing mechanism polishes the corners on both sides of the wooden board at an arc angle. The fitting moving mechanism enables the two second sliding frames 7 to move clockwise along the side of the wooden board and fit the side and end corner polished arc angles of the wooden board. The two second sliding frames 7 are always located on the center extension line of the wooden board. Before the second sliding frame 7 moves to the end corner of the wooden board, the end corner polishing mechanism finishes polishing the end corner of the wooden board. When the corners on the two second movable blocks 8 are When the grinding mechanism grinds the two grinding end corners opposite to the center extension line of the wooden board, the connecting frame 6 at the edge and corner grinding position moves to make way, thereby releasing the limit blockage at the edge and corner grinding position, and relying on the other two limit mechanisms to limit the diagonal position of the wooden board. The end angle grinding and edge corner grinding of the wooden board are carried out simultaneously, thereby improving the grinding efficiency of the arc angle of the wooden board and reducing the processing steps of the wooden board. In addition, by cooperating with the making way mechanism to make way for the edge and corner grinding mechanism, the wooden board can be effectively limited while the edges and corners are being polished, thereby avoiding position movement and repositioning of the wooden board during the processing process, and reducing the preparation work during the grinding process of the wooden board.

[0034] As a further embodiment of the present invention, the limiting mechanism includes a limiting frame 10 (such as Fig. 9As shown in the figure, the limit frame 10 is fixedly connected to the inside of the connecting frame 6, and the limit frame 10 includes two vertical limit sections 1001 and two horizontal limit sections 1002. The two vertical limit sections 1001 are both located between the two horizontal limit sections 1002, and are located at the upper and lower ends of the two horizontal limit sections 1002; when working, the connecting frame 6 drives the limit frame 10 to move synchronously and approach the end corners of the wooden board during the movement process, and the two vertical limit sections 1001 move to the top and bottom of the end corners of the wooden board respectively, and the two horizontal limit sections 1002 respectively resist the two sides of the end corners of the wooden board. Through the cooperation of the four limit frames 10, the wooden board is vertically limited and the horizontal position of the wooden board is limited and clamped at the same time, so that the wooden board is limited to the center position of the top of the support seat 2.

[0035] As a further embodiment of the present invention, the end angle grinding mechanism includes an arc bracket 11, which is fixedly connected to the top of the limiting frame 10, and an arc groove 12 is provided on the arc bracket 11. A circular pin 13 is slidably connected inside the arc groove 12. A first reciprocating file 14 is fixedly connected to the bottom of the circular pin 13, and a first rotary file 15 is fixedly connected to the output end of the bottom of the first reciprocating file 14. The first rotary file 15 is cylindrical in shape, and an arc bar 16 is fixedly connected to the top of the arc bracket 11. A limiting arc groove 1301 is provided on the top of the circular pin 13, and the arc bar 16 is slidably connected to the inside of the limiting arc groove 1301. A mounting plate 17 is fixedly connected to one side of the arc bracket 11, and a swing cylinder 18 is fixedly installed on the mounting plate 17. A toggle bar 19 is fixedly connected to the piston shaft of the swing cylinder 18, and a strip groove 20 is provided on the toggle bar 19. The circular pin 13 is sleeved in the strip groove 20. The output shaft of the swing cylinder 18 is coaxially arranged with the arc groove 12; during operation, the connecting frame 6 drives the limiting frame 10 to move and limit the wooden board during the movement, and then the first rotary file 15 is located on one side of the wooden board and contacts it, and the first reciprocating file 14 drives the first rotary file 15 to rotate, and the piston shaft of the swing cylinder 18 drives the toggle bar 19 to rotate, and limits the circular pin 13 through the strip groove 20 on the toggle bar 19, so that the circular pin 13 moves along the inside of the arc groove 12, and the sliding connection between the arc bar 16 and the limiting arc groove 1301 prevents the circular pin 13 from rotating when moving inside the arc groove 12. When the first rotary file 15 rotates, it moves along the trajectory of the arc groove 12, thereby performing arc grinding on the end angle of the wooden board, and separating the tip position and the arc grinding position, thereby performing arc angle grinding on the end angle of the wooden board.

[0036] As a further implementation scheme of the present invention, the edge and corner grinding mechanism includes a mounting frame 21, which is fixedly connected to the top of the second movable block 8, and a second reciprocating file 22 is fixedly installed on the mounting frame 21, and a second rotary file 23 is fixedly connected to the output end of the second reciprocating file 22, and the second rotary file 23 is a cylindrical concave shape; when working, the second rotary file 23 is driven to rotate by the output end of the second reciprocating file 22, and the second movable block 8 is driven to move inside the second sliding frame 7 by the piston shaft of the second hydraulic cylinder 9, so that the mounting frame 21 and the second reciprocating file 22 move toward the side of the wooden board, and the second rotary file 23 is close to the side of the wooden board, and the upper and lower ends of the concave surface of the second rotary file 23 are respectively in contact with the two corners of the wooden board and rotate at high speed, thereby performing arc angle grinding on the corners of the board.

[0037] As a further implementation scheme of the present invention, the fitting moving mechanism includes an annular slide rail 24, which is fixedly connected to the top of the processing table 1, and two slide seats 25 are slidably connected to the annular slide rail 24, and the second sliding frame 7 is fixedly connected to the top of the corresponding slide seat 25, and the four ends of the annular slide rail 24 are respectively coaxially arranged with the upper arc groove 12; when working, the two slide seats 25 move clockwise along the annular slide rail 24, and the moving trajectory of the second rotary file 23 is limited by the trajectory of the annular slide rail 24, so that the second rotary file 23 is always fitted with the side of the wooden board, and the four ends of the annular slide rail 24 are coaxially arranged with the arc groove 12, so that the second rotary file 23 can move along the end angle grinding position of the wooden board, and continue to grind the corners from the end angle grinding position of the wooden board.

[0038] As a further embodiment of the present invention, the cooperative yielding mechanism includes two laser sensors 26 and four L-shaped shielding strips 27. The two laser sensors 26 (such as Figure 7 As shown) are fixedly mounted on the bottom of the two second sliding frames 7, and four L-shaped shielding strips 27 (as shown Figure 2 and Fig.10As shown in the figure, they are all fixedly connected to the top of the processing table 1, and the four ends of the annular slide rail 24 are respectively coaxially arranged with the arc-shaped ends of the corresponding L-shaped shielding strips 27; when working, laser ranging is performed by the laser sensor 26, and when the second sliding frame 7 moves with the slide seat 25, the laser sensor 26 approaches the corresponding L-shaped shielding strip 27, and the ranging of the laser sensor 26 is blocked by the L-shaped shielding strip 27, so that the corresponding ranging length detected by the laser sensor 26 is detected, and the L-shaped shielding strip 27 and the arc-shaped end of the annular slide rail 24 are coaxially arranged, so that the ranging length of the laser sensor 26 remains unchanged when it moves through the corresponding L-shaped shielding strip 27, and the controller connected to the laser sensor 26 controls the corresponding first hydraulic cylinder 5 to work in the reverse direction after receiving the specific ranging signal of the laser sensor 26, thereby releasing the limit of the wooden board at the corner grinding position, until the laser sensor 26 moves out of the corresponding L-shaped shielding strip 27, and the controller connected to the laser sensor 26 no longer receives the specific ranging signal, thereby re-limiting the wooden board.

[0039] As a further implementation scheme of the present invention, a bottom plate 28 is fixedly connected to the lower part of the connecting frame 6, a clamping strip 29 is arranged above the bottom plate 28, and movable strips 30 are fixedly connected to both ends of the clamping strip 29, and movable grooves 31 are provided on both sides of the connecting frame 6. The two movable strips 30 are respectively slidably connected to the corresponding movable grooves 31, and circular rods 32 are fixedly connected to the inside of the movable grooves 31. The circular rods 32 are slidably inserted on the corresponding movable strips 30, and springs 33 are sleeved on the circular rods 32. The two ends of the spring 33 are respectively fixedly connected to the top of the corresponding movable strip 30 and the top surface of the movable groove 31, and one end of the two movable strips 30 is fixedly connected to the guide pin 34. Both sides of the first sliding frame 3 are fixedly connected The limiting plate 35 is connected, and a horizontal groove 36 and a guide groove 37 are provided on one side of the limiting plate 35. The guide groove 37 includes a horizontal section 3701 and an inclined section 3702. The horizontal section 3701 is located above the horizontal groove 36 and is parallel to the horizontal groove 36. One end of the inclined section 3702 is connected to the horizontal groove 36. A vertical groove 38 is provided on the limiting plate 35. The vertical groove 38 is located between the horizontal groove 36 and the guide groove 37. One end of the horizontal groove 36 and one end of the horizontal section 3701 are both connected to the vertical groove 38. A guide plate 39 is hinged at the connection between the inclined section 3702 and the horizontal groove 36. The guide plate 39 is parallel to the inclined section 3702. One end of the guide pin 34 is located at the connection between the corresponding horizontal groove 36 and the vertical groove 38.During operation, when the piston shaft of the first hydraulic cylinder 5 drives the connecting frame 6 to work in the reverse direction and releases the limit of the wooden board at the edge and corner grinding position, the right-angled waste generated by the end angle grinding of the wood is easy to fall onto the processing table 1 during the process of releasing the limit, thereby affecting the movement of the slide 25 and the edge and corner grinding. The bottom of the end angle of the wood is supported by the bottom plate 28, and the movable bar 30 is elastically squeezed toward the bottom of the movable groove 31 by the elastic extension of the spring 33, so that the clamping bar 29 is located at the top of the end angle of the wood and pressurized, so that the right-angled waste generated by grinding is clamped and limited between the bottom plate 28 and the clamping bar 29 When the connecting frame 6 moves in the opposite direction with the piston shaft of the first hydraulic cylinder 5 and the limit is released, one end of the guide pin 34 moves along the connection between the horizontal groove 36 and the vertical groove 38 to the other end of the horizontal groove 36, and moves through the bottom of the guide plate 39 during the movement. When one end of the guide pin 34 contacts the guide plate 39, the guide plate 39 flips upward along the hinge to make way, so that the guide pin 34 passes normally, and after the guide pin 34 passes, the guide plate 39 returns to the initial position under the action of gravity, so that the right-angle waste generated by grinding can be synchronously clamped by elastic clamping when the connecting frame 6 moves. The guide pin 34 is driven to prevent right-angled waste from falling onto the processing table 1 and affecting subsequent processing. When the piston shaft of the first hydraulic cylinder 5 drives the connecting frame 6 to move toward the processing table 1, one end of the guide pin 34 moves along the horizontal groove 36 toward the vertical groove 38, and when it moves to the connection point between the horizontal groove 36 and the inclined section 3702, it is guided by the inclined surface of the guide plate 39 to make one end of the guide pin 34 move upward to the inside of the inclined section 3702, and move along the inclined section 3702 to the horizontal section 3701. When the guide pin 34 moves inside the inclined section 3702, the movable bar 30 moves along the sliding insertion point of the circular rod 32 to the horizontal section 3701. The guide pin 34 moves upward and squeezes the spring 33 to produce compression deformation, so that the clamping strip 29 moves upward, so that the clamping strip 29 is located above the wooden board when it moves toward the wooden board, preventing the clamping strip 29 and the end corner of the wooden board from moving obstructed. When the clamping strip 29 moves above the end corner of the wooden board, the guide pin 34 moves to the connection between the vertical slot 38 and the horizontal section 3701, and the guide pin 34 moves vertically downward along the vertical slot 38 through the elastic action of the spring 33, and finally moves to the connection between the vertical slot 38 and the horizontal slot 36, so that the clamping strip 29 is elastically pressed on the top of the end corner of the wooden board. ;

[0040] As a further implementation scheme of the present invention, a plurality of spherical grooves 40 are provided on the top of the support seat 2, and contact balls 41 are rollingly connected inside the spherical grooves 40; during operation, when the wooden board is supported by the support seat 2, it contacts the tops of the plurality of contact balls 41, and when the end angles of the wooden board are limited to generate movement, the contact balls 41 roll inside the spherical grooves 40, and the contact wear on the surface of the wooden board is reduced by rolling friction.

[0041] Working principle of the present invention:

[0042] The wooden board for grinding is placed on the top of the support seat 2, and the piston shafts of the four first hydraulic cylinders 5 move synchronously, so that the first movable blocks 4 are all moved toward the processing table 1 along the corresponding first sliding frame 3, and the connecting frame 6 is driven to move synchronously, so that the positioning clamping mechanisms on the four connecting frames 6 synchronously limit the four end corners of the wooden board, and then the four end corners of the wooden board are grinded into arc angles through the action of the end angle grinding mechanism. While the four end corners of the wooden board are being grinded into arc angles, the piston shafts of the two second hydraulic cylinders 9 move synchronously, thereby driving the second movable blocks 8 to move toward the side of the wooden board along the corresponding second sliding frame 7, and the corner grinding mechanism is used to grind the corners of both sides of the wooden board into arc angles, and the fitting moving mechanism is used to make the two second sliding frames 7 move clockwise along the side of the wooden board, and fit the arc angles of the side and end corners of the wooden board after grinding. The two second sliding frames 7 are always located on the center extension line of the wooden board. Before the second sliding frames 7 move to the end corners of the wooden board, the end corner grinding mechanism completes the end corner grinding of the wooden board. When the edge and corner grinding mechanisms on the two second movable blocks 8 perform edge and corner grinding on the two grinding end corners opposite to the center extension line of the wooden board, the connecting frame 6 at the edge and corner grinding position moves to make way, thereby releasing the limiting blockage at the edge and corner grinding position, and relying on the other two limiting mechanisms to perform diagonal limiting on the wooden board. By performing the end and corner grinding and edge grinding of the wooden board simultaneously, the grinding efficiency of the arc angle of the wooden board is improved and the processing steps of the wooden board are reduced. In addition, by cooperating with the making way mechanism to make way for the edge and corner grinding mechanism, the wooden board is effectively limited while the edges and corners are being polished, thereby avoiding position movement and repositioning during the processing of the wooden board and reducing the preparation work during the grinding process of the wooden board.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may have various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention to be protected, and the scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A household cabinet arc angle auxiliary grinding device, comprising a processing table (1), characterized in that: A support seat (2) is fixedly connected to the center position of the top of the processing table (1); the four ends of the processing table (1) are fixedly connected to a first sliding frame (3); the first sliding frame (3) is slidably connected to a first movable block (4); a first hydraulic cylinder (5) is fixedly mounted on the first sliding frame (3); a piston shaft of the first hydraulic cylinder (5) is fixedly connected to the corresponding first movable block (4); a connecting frame (6) is fixedly connected to the first movable block (4); and a limiting mechanism and an end angle grinding mechanism are connected to the connecting frame (6); A second sliding frame (7) is provided on both sides of the top of the processing table (1); a second movable block (8) is slidably connected inside the second sliding frame (7); a second hydraulic cylinder (9) is fixedly mounted on the second sliding frame (7); a piston shaft of the second hydraulic cylinder (9) is fixedly connected to the corresponding second movable block (8); an edge grinding mechanism is connected to the second movable block (8); a fitting moving mechanism is connected to the second sliding frame (7); and a matching yielding mechanism is connected to the first movable block (4); The limiting mechanism comprises a limiting frame (10), wherein the limiting frame (10) is fixedly connected to the interior of the connecting frame (6), and the limiting frame (10) comprises two vertical limiting segments (1001) and two horizontal limiting segments (1002), wherein the two vertical limiting segments (1001) are both located between the two horizontal limiting segments (1002) and at the upper and lower ends of the two horizontal limiting segments (1002); The end angle grinding mechanism comprises an arc-shaped bracket (11), wherein the arc-shaped bracket (11) is fixedly connected to the top of the limiting frame (10), and an arc-shaped groove (12) is provided on the arc-shaped bracket (11). A circular pin (13) is slidably connected inside the arc-shaped groove (12), and a first reciprocating file (14) is fixedly connected to the bottom of the circular pin (13), and a first rotary file (15) is fixedly connected to the output end of the bottom of the first reciprocating file (14), and the first rotary file (15) is cylindrical in shape. The top of the arc-shaped bracket (11) is fixedly connected to an arc-shaped bar (16), and the circular pin (13) is fixedly connected to the output end of the bottom of the first reciprocating file (14). A limiting arc groove (1301) is provided at the top of the circular pin (13), the arc strip (16) is slidably connected inside the limiting arc groove (1301), a mounting plate (17) is fixedly connected to one side of the arc bracket (11), a swing cylinder (18) is fixedly mounted on the mounting plate (17), a toggle strip (19) is fixedly connected to the piston shaft of the swing cylinder (18), a strip groove (20) is provided on the toggle strip (19), the circular pin (13) is sleeved in the strip groove (20), and the output shaft of the swing cylinder (18) and the arc groove (12) are coaxially arranged; The edge grinding mechanism comprises a mounting frame (21), the mounting frame (21) being fixedly connected to the top of the second movable block (8), a second reciprocating file (22) being fixedly mounted on the mounting frame (21), a second rotary file (23) being fixedly connected to the output end of the second reciprocating file (22), and the second rotary file (23) being in the shape of a cylindrical concave; The fitting moving mechanism comprises an annular slide rail (24), the annular slide rail (24) is fixedly connected to the top of the processing table (1), two slide seats (25) are slidably connected to the annular slide rail (24), the second slide frames (7) are fixedly connected to the tops of the corresponding slide seats (25), and the four ends of the annular slide rail (24) are respectively coaxially arranged with the arc-shaped groove (12) above; The matching and yielding mechanism comprises two laser sensors (26) and four L-shaped shielding strips (27), the two laser sensors (26) being respectively fixedly mounted on the bottom of the two second sliding frames (7), the four L-shaped shielding strips (27) being respectively fixedly connected to the top of the processing table (1), and the four ends of the annular slide rail (24) being respectively coaxially arranged with the arc-shaped ends of the corresponding L-shaped shielding strips (27).

2. The arc angle auxiliary grinding device for household cabinets according to claim 1, characterized in that: A bottom plate (28) is fixedly connected to the lower part of the connection frame (6), a clamping strip (29) is arranged above the bottom plate (28), and movable strips (30) are fixedly connected to both ends of the clamping strip (29), and movable grooves (31) are provided on both sides of the connection frame (6), and the two movable strips (30) are respectively slidably connected to the corresponding movable grooves (31), and the inside of the movable grooves (31) is fixedly connected with a circular rod (32), and the circular rod (32) is slidably inserted on the corresponding movable strip (30), and a spring (33) is sleeved on the circular rod (32), and the two ends of the spring (33) are respectively fixedly connected to the top of the corresponding movable strip (30) and the top surface of the movable groove (31), and one end of the two movable strips (30) is fixedly connected to a guide pin (34), and both sides of the first sliding frame (3) are fixedly connected to a limit plate (35), and the limit plate (35) A horizontal groove (36) and a guide groove (37) are provided on one side of the guide groove (37), the guide groove (37) comprising a horizontal section (3701) and an inclined section (3702), the horizontal section (3701) being located above the horizontal groove (36) and parallel to the horizontal groove (36), one end of the inclined section (3702) being connected to the horizontal groove (36), and a vertical groove (38) being provided on the limiting plate (35), the vertical groove (38) being located between the horizontal groove ( The guide pin (34) is located between the horizontal groove (36) and the guide groove (37), one end of the horizontal groove (36) and one end of the horizontal section (3701) are both connected to the vertical groove (38), a guide plate (39) is hingedly connected at the connection point between the inclined section (3702) and the horizontal groove (36), the guide plate (39) and the inclined section (3702) are parallel, and one end of the guide pin (34) is located at the connection point between the corresponding horizontal groove (36) and the vertical groove (38).

3. The arc angle auxiliary grinding device for household cabinets according to claim 1, characterized in that: A plurality of spherical grooves (40) are provided on the top of the support seat (2), and contact balls (41) are rollingly connected inside the spherical grooves (40).

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