Multi-head stone grinding machine

Abstract

The utility model relates to stone processing equipment field especially, more head stone grinding machine, including base, swivel seat, first swing arm, second swing arm, angle adjusting mechanism, mechanical claw, connecting plate, a plurality of main shaft mechanism and installation platform, swivel seat is established on the base, first swing arm is established on the swivel seat, second swing arm is established on first swing arm side, angle adjusting mechanism is connected mechanical claw through fourth drive arrangement, and the connecting plate with a plurality of main shaft mechanism and drill bit is clamped by mechanical claw, constitutes multi -freedom degree mechanical arm structure, realizes to stone board multi -angle flexible processing, the utility model discloses through handle drive eccentric block to drive clamping block to compress stone board, and the reaction force makes the clamping block and the blocking block lock on the mounting plate, realizes stone board and clamp synchronous quick fixing, when dismounting, reverse rotation just removes the locking, and the operation is simple, and the cooperation synchronous grinding of many main shafts improves batch processing efficiency significantly.

Description

Technical Field

[0001] This utility model relates to the field of stone processing equipment, and in particular to a multi-head stone grinding machine. Background Technology

[0002] With the continuous development of industries such as architectural decoration and stone inscription, the demand for stone grinding is increasing. In order to improve processing efficiency, multi-head stone grinding machines are widely used for mass production. However, existing stone grinding machines still have the following significant drawbacks in practical applications:

[0003] Existing stone grinding machines generally adopt the traditional three-axis gantry platform plus linear guide rail structure. Limited by the linear movement trajectory, the drill bit can usually only perform planar or relief processing on the stone from top to bottom. If it is necessary to grind or chamfer the side, bevel, or irregular curved surface of the stone, the traditional three-axis machine tool is very likely to produce processing dead angles.

[0004] Furthermore, traditional threaded pressure plates require workers to repeatedly tighten them with a wrench, which consumes a lot of physical strength and time, especially when processing stone of the same specifications in batches, the auxiliary time for loading and unloading is long. Utility Model Content

[0005] Therefore, in view of the above problems, this utility model proposes a multi-head stone grinding machine, which solves the above technical problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A multi-head stone grinding machine includes a base, a rotating seat rotatably mounted on the base, a first drive device for driving the rotating seat to rotate, a first rotating arm rotatably mounted on the rotating seat, a second drive device for driving the first rotating arm to rotate, a second rotating arm rotatably mounted on the side of the first rotating arm away from the rotating seat, a third drive device for driving the second rotating arm to rotate, a fourth drive device located at the bottom of the second rotating arm, an angle adjustment mechanism for driving the fourth drive device to rotate, a mechanical claw located on the fourth drive device, a connecting plate located inside the mechanical claw, a plurality of spindle mechanisms located on the connecting plate, drill bits located at the bottom of each spindle mechanism, and a mounting platform located in front of the base.

[0008] The mounting platform includes a mounting base, a mounting plate rotatably mounted on the mounting base, a motor for driving the mounting plate to rotate, a convex groove on the mounting plate, a locking block in the convex groove, an extension block on one side of the locking block, a clamping block rotatably mounted on the top of the locking block, an eccentric block rotatably mounted on the side of the clamping block near the extension block, and a handle detachably mounted on the eccentric block. The bottom surface of the extension block is fixed with a stop block perpendicular to the extension block, the bottom surface of the stop block is arc-shaped, and the bottom top surface of the locking block is arc-shaped.

[0009] Furthermore, the outer side of the eccentric block is provided with multiple square holes, and one end face of the handle is provided with a protrusion that is inserted into the square holes.

[0010] Furthermore, the mechanical gripper includes a slide table mounted on the fourth drive device, a first gripper block slidably mounted on the slide table, a second gripper block slidably mounted on the slide table, a first cylinder mounted inside the slide table for driving the first gripper block to move, and a second cylinder mounted inside the slide table for driving the second gripper block to move.

[0011] Furthermore, the first and second claw blocks are provided with anti-slip grooves.

[0012] By adopting the aforementioned technical solution, the beneficial effects of this utility model are:

[0013] This multi-head stone grinding machine, when fixing stone slabs, simply rotates the eccentric block via the handle, which utilizes the eccentric linkage principle to drive the clamping block to press the stone slab firmly. Simultaneously, the reaction force causes the locking block and stop block to fit tightly and lock against the mounting plate, achieving synchronous fixing of the stone slabs. For disassembly, simply rotate in the opposite direction to release the lock, allowing the locking block to slide freely on the mounting plate. This structure is simple to operate, saves time and labor, and is suitable for rapid loading, unloading, and positioning of stone slabs in batch processing.

[0014] This invention sets the bottom surface of the stop block and the top surface of the bottom of the clamping block to be arc-shaped. When the clamping block is not clamped to the stone slab, the clamping block can produce a slight deflection in the convex groove, causing the stop block at the bottom of the right extension block to detach from the surface of the mounting plate. This transforms surface contact into local contact, greatly reducing the frictional resistance during movement. This makes the clamping block move more smoothly and less prone to jamming when it is quickly positioned. When the stone slab is clamped, the force distribution changes, and the clamping block and the stop block re-fit tightly to the mounting plate, ensuring stability after clamping and fixing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a partial structural schematic diagram of the present invention.

[0017] Figure 3 This is a top view of the mounting platform structure of this utility model.

[0018] Figure 4 This is a partial structural diagram of the mounting platform of this utility model.

[0019] Figure 5 This is an exploded view of the structure of the card block, clamping block, eccentric block and handle of this utility model.

[0020] Figure 6 This is a front view schematic diagram of the mechanical claw structure of this utility model.

[0021] Figure 7 This is a top view of a partial structure of this utility model.

[0022] Numbering on the map:

[0023] 1. Base; 2. Rotary seat; 3. First drive device; 4. First rotating arm; 5. Second drive device; 6. Second rotating arm; 7. Third drive device; 8. Fourth drive device; 9. Angle adjustment mechanism; 10. Mechanical gripper; 11. Connecting plate; 12. Spindle mechanism; 13. Drill bit; 14. Mounting platform;

[0024] 101. Slide table; 102. First claw block; 103. Second claw block; 104. First cylinder; 105. Second cylinder; 106. Anti-slip groove;

[0025] 401. Mounting base; 402. Mounting plate; 403. Motor; 404. Convex groove; 405. Locking block; 406. Extension block; 407. Clamping block; 408. Eccentric block; 409. Handle; 410. Stop block; 411. Square hole; 412. Protrusion. Detailed Implementation

[0026] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0027] refer to Figures 1 to 7 This embodiment provides a multi-head stone grinding machine, including a base 1, a rotating seat 2 rotatably mounted on the base 1, a first driving device 3 for driving the rotating seat 2 to rotate, a first rotating arm 4 rotatably mounted on the rotating seat 2, a second driving device 5 for driving the first rotating arm 4 to rotate, a second rotating arm 6 rotatably mounted on the side of the first rotating arm 4 away from the rotating seat 2, a third driving device 7 for driving the second rotating arm 6 to rotate, a fourth driving device 8 located at the bottom of the second rotating arm 6, an angle adjustment mechanism 9 for driving the fourth driving device 8 to rotate, a mechanical gripper 10 located on the fourth driving device 8, a connecting plate 11 located within the mechanical gripper 10, multiple spindle mechanisms 12 located on the connecting plate 11, and mechanisms located on each spindle. The mechanism 12 includes a drill bit 13 at the bottom and a mounting platform 14 in front of the base 1. The mounting platform 14 includes a mounting base 401, a mounting plate 402 rotatably mounted on the mounting base 401, a motor 403 for driving the mounting plate 402 to rotate, a convex groove 404 on the mounting plate 402, a locking block 405 in the convex groove 404, an extension block 406 on one side of the locking block 405, a clamping block 407 rotatably mounted on the top of the locking block 405, an eccentric block 408 rotatably mounted on the side of the clamping block 407 near the extension block 406, and a handle 409 detachably mounted on the eccentric block 408. A stop block 410 is fixedly mounted on the bottom surface of the extension block 406 and is perpendicular to the extension block 406.

[0028] After the stone slabs are fixed, the mechanical gripper 10 clamps the connecting plate 11. Then, the first drive device 3 drives the rotating seat 2 to rotate on the base 1, and the mechanical gripper 10 rotates to the direction of the stone slabs. Next, the angle adjustment mechanism 9 drives the fourth drive device 8 to rotate to a set angle. The second drive device 5 and the third drive device 7 control the angles of the first rotating arm 4 and the second rotating arm 6, allowing the drill bit 13 to simultaneously grind designated positions on multiple stone slabs. The base 1, rotating seat 2, first rotating arm 4, second rotating arm 6, and angle adjustment mechanism 9 constitute a multi-degree-of-freedom robotic arm structure, which can be referenced. Figure 7 The connecting plate 11, the multiple spindle mechanisms 12 mounted on the connecting plate 11, and the drill bits 13 mounted at the bottom of each spindle mechanism 12 together constitute a multi-head grinding structure. Since the drill bits 13 are installed below the multiple spindle mechanisms 12, and the mechanical claw 10 grips the connecting plate 11 with the multiple spindle mechanisms 12, flexible processing of the stone slab from multiple angles and directions is achieved. At the same time, the multiple spindle mechanisms 12 and the drill bits 13 can perform synchronous grinding on the designated position of the stone slab, which greatly improves production efficiency compared to a single-head grinding machine.

[0029] When fixing the stone slab, first place the stone slab on the mounting plate 402. Then, insert the bottom of the locking block 405 into the convex groove 404 on the mounting plate 402. Next, move the locking block 405 close to the stone slab. Then, rotate the eccentric block 408 via the handle 409. The eccentric block 408 will drive the clamping block 407 to rotate, fixing the stone slab in place. Because the bottom of the locking block 405 is engaged in the convex groove 404 of the mounting plate 402, the stop block 410 at the bottom of the extension block 406 is in contact with the top surface of the mounting plate 402. When disassembly is required, rotate the eccentric block 408 in the opposite direction. The clamping block 407 will rotate towards the extension block 406, moving away from the stone slab. Without the pressure of the clamping block 407, the locking block 405 and extension block 406 can move on the mounting plate 402, facilitating quick installation and positioning of batch-processed stone slabs.

[0030] The eccentric block 408 has multiple square holes 411 on its outer side. One end face of the handle 409 has a protrusion 412 that is inserted into the square hole 411. After the protrusion 412 of the handle 409 is inserted into the square hole 411, it is convenient to rotate the eccentric block 408. After completion, the handle 409 is pulled out to avoid position interference when the drill bit 13 moves.

[0031] The bottom surface of the stop block 410 is arc-shaped, and the bottom top surface of the clamping block 405 is arc-shaped. When the clamping block 407 at the top of the clamping block 405 is not clamped to the stone slab, the clamping block 405 can be rotated to the left because the bottom top surface of the clamping block 405 is arc-shaped. The extension block 406 on the right side of the clamping block 405 can leave the surface of the mounting plate 402. Compared with the square structure, when the clamping block 407 is not clamped, the clamping block 405 is easier to move because the stop block 410 on the bottom surface of the extension block 406 does not contact the top surface of the mounting plate 402. It is less likely to be interfered with during rapid movement.

[0032] When the clamping block 407 clamps the stone slab, the stop block 410 on the bottom surface of the locking block 405 and the extension block 406 re-contacts the mounting plate 402, and the bottom surface of the extension block 406 will tightly adhere to the top surface of the mounting plate 402, maintaining the fixed position of the clamping block 407.

[0033] The mechanical claw 10 includes a slide 101 mounted on the fourth drive device 8, a first claw block 102 slidably mounted on the slide 101, a second claw block 103 slidably mounted on the slide 101, a first cylinder 104 mounted in the slide 101 and driving the first claw block 102 to move, and a second cylinder 105 mounted in the slide 101 and driving the second claw block 103 to move. The first claw block 102 and the second claw block 103 are provided with anti-slip grooves 106.

[0034] The mechanical gripper 10 uses a first cylinder 104 and a second cylinder 105 to drive the first gripper block 102 and the second gripper block 103 respectively. The pneumatic control has a fast response and a large clamping force, which can accurately grip and release the connecting plate 11, providing a structural basis for possible automatic replacement of the connecting plate 11 in the future. In addition, the anti-slip grooves 106 provided on the first gripper block 102 and the second gripper block 103 further increase the friction of the clamping surface, effectively preventing the connecting plate 11 and the spindle mechanism 12 from slipping during movement or high-frequency grinding vibration, ensuring the safety and stability of the processing process.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0037] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0039] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A multi-head stone grinding machine, characterized in that, It includes a base (1), a rotating seat (2) rotatably mounted on the base (1), a first drive device (3) for driving the rotating seat (2) to rotate, a first rotating arm (4) rotatably mounted on the rotating seat (2), a second drive device (5) for driving the first rotating arm (4) to rotate, a second rotating arm (6) rotatably mounted on the side of the first rotating arm (4) away from the rotating seat (2), a third drive device (7) for driving the second rotating arm (6) to rotate, a fourth drive device (8) located at the bottom of the second rotating arm (6), an angle adjustment mechanism (9) for driving the fourth drive device (8) to rotate, a mechanical claw (10) located on the fourth drive device (8), a connecting plate (11) located in the mechanical claw (10), multiple spindle mechanisms (12) located on the connecting plate (11), a drill bit (13) located at the bottom of each spindle mechanism (12), and a mounting platform (14) located in front of the base (1). The mounting platform (14) includes a mounting base (401), a mounting plate (402) rotatably mounted on the mounting base (401), a motor (403) for driving the mounting plate (402) to rotate, a convex groove (404) on the mounting plate (402), a locking block (405) in the convex groove (404), an extension block (406) on one side of the locking block (405), a clamping block (407) rotatably mounted on the top of the locking block (405), an eccentric block (408) rotatably mounted on the side of the clamping block (407) near the extension block (406), and a handle (409) detachably mounted on the eccentric block (408). The bottom surface of the extension block (406) is fixed with a stop block (410) perpendicular to the extension block (406). The bottom surface of the stop block (410) is arc-shaped, and the bottom top surface of the locking block (405) is arc-shaped.

2. The multi-head stone grinding machine according to claim 1, characterized in that: The eccentric block (408) has multiple square holes (411) on its outer side, and the handle (409) has a protrusion (412) on one end face that is inserted into the square holes (411).

3. A multi-head stone grinding machine according to claim 1, characterized in that: The mechanical claw (10) includes a slide (101) mounted on the fourth drive device (8), a first claw block (102) slidably mounted on the slide (101), a second claw block (103) slidably mounted on the slide (101), a first cylinder (104) mounted in the slide (101) for driving the first claw block (102) to move, and a second cylinder (105) mounted in the slide (101) for driving the second claw block (103) to move.

4. A multi-head stone grinding machine according to claim 3, characterized in that: The first claw block (102) and the second claw block (103) are provided with anti-slip grooves (106).

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