Rotary mechanical grabbing device for laser marking machine

Abstract

The invention provides a rotary mechanical grabbing device for a laser marking machine, and belongs to the technical field of laser processing. Comprising a base, the top end of the base is fixedly connected with a fixing plate, one end of the fixing plate is provided with a three-jaw chuck, one end of the three-jaw chuck is provided with three clamping rod adjusting assemblies, and the clamping rod adjusting assemblies are used for adjusting the angle of a metal clamping rod; a clamping assembly is arranged on one side of the three clamping rod adjusting assemblies and used for conducting auxiliary clamping on different types of workpieces. A center positioning assembly is arranged in the center of one end of the three-jaw chuck and used for positioning the center of a workpiece. The first balls on the hexagonal prism metal rods make contact with metal workpieces, static friction is converted into dynamic friction, scratches are reduced, then the plastic workpieces are adsorbed through the adsorption holes in the hexagonal prism metal rods, the workpieces are fixed in a vacuum adsorption mode, and surface damage is prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser processing, in particular to a rotating mechanical grabbing device for a laser marking machine. BACKGROUND

[0002] The laser marking machine is a device that uses high-energy-density laser beams to make permanent marks on the surface of an object. It makes the material surface change physically or chemically (such as evaporation, discoloration, foaming, etc.) to engrave exquisite patterns, trademarks, dates, serial numbers, two-dimensional codes, and other information.

[0003] Most of the existing rotating mechanical grabbing devices for laser marking machines use mechanical structures such as three-jaw chucks to grab workpieces. Since the workpieces to be marked by laser have different textures, the maximum clamping force they can withstand is also different. When the texture of the workpiece is relatively soft compared to metal, such as plastic products, the metal clamping rod is prone to leaving obvious scratches on the surface of the plastic product under the action of static friction, thereby affecting the quality of the finished workpiece and increasing the rate of defective products.

[0004] Therefore, the present application provides a rotating mechanical grabbing device for a laser marking machine to meet the needs. SUMMARY

[0005] The technical problem to be solved by the present application is to provide a rotating mechanical grabbing device for a laser marking machine to solve the problem of existing metal clamping force being too large, which is prone to leaving obvious scratches on the surface of the workpiece under the action of static friction.

[0006] To solve the above technical problems, the present application provides the following technical solutions: A rotating mechanical grabbing device for a laser marking machine, comprising: a base, the top end of the base is fixedly connected with a fixed plate, one end of the fixed plate is provided with a three-jaw chuck, one end of the three-jaw chuck is provided with three clamping rod adjusting assemblies, the clamping rod adjusting assemblies are used for angle adjustment of metal clamping rods; one side of each of the three clamping rod adjusting assemblies is provided with a clamping assembly, the clamping assembly is used for auxiliary clamping of different types of workpieces; the center of one end of the three-jaw chuck is provided with a center positioning assembly, the center positioning assembly is used for positioning the center of the workpiece; the inner side of the three-jaw chuck is provided with a lubricating assembly, the lubricating assembly is used for cleaning the flat screw groove.

[0007] Optionally, the clamping rod adjusting assembly comprises a clamping jaw, the clamping jaw is installed at one end of the three-jaw chuck, one end of the clamping jaw is fixedly connected with a fixed sleeve, a sliding groove is formed in one side of the fixed sleeve, a U-shaped rod is slidably connected to the inner wall of each of the two sliding grooves, an electric push rod is fixedly connected to the other end of each of the two U-shaped rods, and the electric push rod is fixedly connected to the outer wall of the clamping jaw.

[0008] Optionally, the clamping rod adjusting assembly further comprises a U-shaped sleeve, the U-shaped sleeve is arranged in the fixed sleeve, the outer walls of the two sides of the U-shaped sleeve are fixedly connected with the outer walls of the two ends of the U-shaped rod respectively, and the top ends of the two sides of the U-shaped sleeve are rotatably connected with the rollers.

[0009] Optionally, the clamping rod adjusting assembly further comprises a rotating rod, the rotating rod is arranged on the inner side of the U-shaped sleeve, the outer wall of the rotating rod is provided with a wave-shaped groove, and the wave-shaped groove is rollingly connected with the roller.

[0010] Optionally, the clamping rod adjusting assembly further comprises a connecting sleeve, the connecting sleeve is rotatably connected to the other end of the fixed sleeve, the connecting sleeve penetrates through the inner wall of the fixed sleeve and is fixedly connected with the rotating rod, and the other end of the connecting sleeve is threadedly connected with the six-prism metal rod.

[0011] Optionally, the clamping assembly comprises a plurality of first rollers, the plurality of first rollers are fixedly connected to the outer wall of one side of the six-prism metal rod, the plurality of first rollers are vertically and equidistantly distributed on the outer wall of the six-prism metal rod, a plurality of adsorption holes are formed in the other side of the six-prism metal rod, the other ends of the plurality of adsorption holes are communicated with suction cavities, the other ends of the suction cavities are communicated with one-way valves, the other ends of the one-way valves are communicated with suction pipes, the other ends of the suction pipes are communicated with four-way pipes, the outer sides of the four-way pipes are fixedly connected with fixed supports, and the fixed supports are fixedly connected with the outer wall of the three-jaw chuck.

[0012] Optionally, the center positioning assembly further comprises a first spring, the first spring is fixedly connected to the outer wall of one end of the fixed support, an electric suction disc is mounted at the other end of the first spring, and a pressure sensor is mounted at the center of the electric suction disc.

[0013] Optionally, the lubricating assembly comprises a first sliding structure, the first sliding structure is fixedly connected to the inner wall of one side of the three-jaw chuck, a second spring is mounted at the bottom end of the first sliding structure, an oil tank is mounted at the other end of the second spring, three oil inlet pipes are communicated with the bottom end of the oil tank, second rollers are communicated with the bottom ends of the oil pipes respectively, and an iron sheet is fixedly connected to one side of the oil tank.

[0014] Optionally, the lubricating assembly further comprises a second sliding structure, the second sliding structure is arranged on one side of the oil inlet pipe, the second sliding structure is fixedly connected with the inner wall of the three-jaw chuck, and an electromagnet is slidably connected to the top end of the second sliding structure.

[0015] Optionally, an auxiliary structure is mounted at the top end of one side of the base, and a driving structure is mounted at the top end of the other side of the base.

[0016] Compared with the prior art, the present application has at least the following beneficial effects: In the above scheme, the workpiece is positioned by the electric suction cup to ensure that the center of the workpiece is aligned with the marking position, then the first ball on the six-prism metal rod is in contact with the metal workpiece to convert static friction into dynamic friction and reduce scratches, then the plastic workpiece is adsorbed by the adsorption hole on the six-prism metal rod, the workpiece is fixed by the vacuum adsorption method to avoid direct contact and prevent surface damage, then the clamping rod adjusting assembly drives the six-prism metal rod to rotate to realize the switching of the clamping surface, which facilitates the automatic adjustment of the clamping mode, enhances the adaptability and flexibility of the device, can process workpieces of various shapes and materials, realizes the rapid and accurate positioning of the workpiece, improves the marking precision and consistency, reduces the manual adjustment time, reduces the surface damage risk of the workpiece during clamping, improves the yield and product quality, then the lubricating assembly lubricates the flat thread to reduce the wear of the flat thread groove, ensures the long-term stable operation of the clamping device, and further improves the clamping precision of the device. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view of the three-dimensional structure of the rotary mechanical grabbing device of the laser marking machine. Figure 2 It is a front view of the three-dimensional structure. Figure 3 It is a three-jaw chuck sectional three-dimensional structure schematic diagram. Figure 4 It is a partial sectional three-dimensional structure schematic diagram of the clamping rod adjusting assembly. Figure 5 It is a partial sectional three-dimensional structure schematic diagram of the clamping rod adjusting assembly. Figure 6 It is a three-dimensional structure schematic diagram of the center positioning assembly. Figure 7 It is a partial expanded three-dimensional structure schematic diagram of the lubricating assembly. Figure 8 It is Figure 4 It is an enlarged three-dimensional structure schematic diagram of A in the middle.

[0018] Reference signs: 1, base; 2, fixed plate; 3, three-jaw chuck; 4, clamping rod adjusting assembly; 401, clamping jaw; 402, fixed sleeve; 403, electric push rod; 404, U-shaped rod; 405, sliding groove; 406, U-shaped sleeve; 407, roller; 408, rotating rod; 409, wave-shaped groove; 410, connecting sleeve; 411, hexagonal metal rod; 5, clamping assembly; 501, first ball; 502, adsorption hole; 503, suction cavity; 504, one-way valve; 505, air suction pipe; 506, four-way pipe; 507, fixed support; 6, center positioning assembly; 601, first spring; 602, electric suction disc; 603, pressure sensor; 7, lubricating assembly; 701, first sliding structure; 702, second spring; 703, oil tank; 704, oil inlet pipe; 705, second ball; 706, iron sheet; 707, electromagnet; 708, second sliding structure; 8, driving structure; 9, auxiliary structure.

[0019] As shown in the drawings, in order to clearly realize the structure of the embodiments of the present application, specific structures and devices are marked in the drawings, but this is only for the need of illustration, and is not intended to limit the present application in the specific structures, devices and environments. According to the specific needs, those skilled in the art can adjust or modify these devices and environments, and the adjustments or modifications still include in the scope of the appended claims. DETAILED DESCRIPTION

[0020] A rotating mechanical grabbing device for a laser marking machine provided by the present application is described in detail below in combination with the drawings and specific embodiments. It should be noted that in order to make the embodiments more detailed, the following embodiments are the best, preferred embodiments, and other alternative ways can also be used by those skilled in the art to implement some known technologies; and the drawings are only used to more specifically describe the embodiments, and are not intended to specifically limit the present application.

[0021] It should be noted that in the specification, "one embodiment", "embodiment", "exemplary embodiment", "some embodiments" and the like indicate that the described embodiments can include specific features, structures or characteristics, but not necessarily every embodiment includes the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in combination with an embodiment, it should be within the knowledge of those skilled in the art to implement such a feature, structure or characteristic in combination with other embodiments (whether or not explicitly described).

[0022] In general, the terminology can be understood at least in part from a context of a use of the language within a description. For example, the term“one or more” as used herein, depending at least in part upon a context of a

[0023] It will be understood that the terms“on,”“over,” and“above,” in the disclosure, should be interpreted in the broadest context possible so that“on” not only means“directly on” something but also includes the meaning of being“on” something with intervening features or layers therebetween, and“over” or“above” not only means the meaning of being“over” or“above” something but also can include the meaning of being“over” or“above” something with no intervening features or layers therebetween.

[0024] In addition, spatially relative terms, such as“beneath,”“below,”“lower,”“above,”“upper,” and the like, can be used herein for ease of description to describe one element or feature’s relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein can likewise be interpreted accordingly.

[0025] As Figures 1 to 8The embodiment of the application provides a rotary mechanical grabbing device for a laser marking machine, which comprises a base 1, a fixed plate 2 fixedly connected to the top end of the base 1, a three-jaw chuck 3 installed at one end of the fixed plate 2, three clamping rod adjusting assemblies 4 arranged at one end of the three-jaw chuck 3, the clamping rod adjusting assemblies 4 being used for angle adjustment of metal clamping rods, a clamping assembly 5 arranged at one side of the three clamping rod adjusting assemblies 4, the clamping assembly 5 being used for auxiliary clamping of different types of workpieces, a center positioning assembly 6 arranged at the center of one end of the three-jaw chuck 3, the center positioning assembly 6 being used for positioning the center of the workpiece, a lubricating assembly 7 arranged at the inner side of the three-jaw chuck 3, the lubricating assembly 7 being used for cleaning the flat thread groove, the clamping rod adjusting assembly 4 comprising a clamping jaw 401, the clamping jaw 401 being installed at one end of the three-jaw chuck 3, a fixed sleeve 402 fixedly connected to one end of the clamping jaw 401, a sliding groove 405 being formed at one side of the fixed sleeve 402, a U-shaped rod 404 being slidably connected to the inner wall of the two sliding grooves 405, a one-way valve 504 being arranged at one end of the U-shaped rod 404, the other end of the two U-shaped rods 404 being fixedly connected to an electric push rod 403, when the output end of the electric push rod 403 moves, the U-shaped rod 404 is driven to slide on the sliding groove 405 through the output end of the electric push rod 403, so that the U-shaped sleeve 406 is pushed, the electric push rod 403 is fixedly connected to the outer wall of the clamping jaw 401, the clamping rod adjusting assembly 4 further comprises a U-shaped sleeve 406, the U-shaped sleeve 406 is arranged in the fixed sleeve 402, the outer walls of the two sides of the U-shaped sleeve 406 are fixedly connected to the outer walls of one end of the U-shaped rods 404, the top ends of the two sides of the U-shaped sleeve 406 are rotatably connected to rollers 407, the outer wall of the roller 407 is rollingly connected to a plurality of small steel balls, which facilitates reduction of friction and loss of the roller 407 during rolling, the clamping rod adjusting assembly 4 further comprises a rotating rod 408, the rotating rod 408 is arranged at the inner side of the U-shaped sleeve 406, a wave-shaped groove 409 is formed in the outer wall of the rotating rod 408, the wave-shaped groove 409 is rollingly connected to the roller 407, the wave-shaped groove 409 is composed of six V-shaped grooves, and the corner positions of the V-shaped grooves are in arc structures, so that the roller 407 can roll, each V-shaped groove corresponds to one side of a six-prism metal rod 411, when the rolling of one V-shaped groove is completed, the six-prism metal rod 411 rotates one face, therefore, when the rolling of three V-shaped grooves is completed, the six-prism metal rod 411 rotates one hundred and eighty degrees, which is just to complete the conversion of the face where the first ball 501 is located and the face where the adsorption hole 502 is located, the clamping rod adjusting assembly 4 further comprises a connecting sleeve 410, the connecting sleeve 410 is combined with the rotating rod 408 to limit the rotating rod 408, so that the rotating rod 408 can only rotate at the same position, the connecting sleeve 410 is rotatably connected to the other end of the fixed sleeve 402, the connecting sleeve 410 penetrates the inner wall of the fixed sleeve 402 and is fixedly connected to the rotating rod 408, the other end of the connecting sleeve 410 is threadedly connected to the six-prism metal rod 411, when the six-prism metal rod 411 needs to be replaced, the one-way valve 504 is separated from the mechanical energy of the extraction cavity 503,Next, separate the hexagonal prism metal rod 411 from the connecting sleeve 410, and thread the new hexagonal prism metal rod 411 to the connecting sleeve 410. Then, re-fix the one-way valve 504 to the extraction chamber 503, thus completing the replacement of the hexagonal prism metal rod 411.

[0026] like Figures 3 to 8 As shown, the clamping assembly 5 includes a plurality of first balls 501, each fixedly connected to one outer wall of the hexagonal prism metal rod 411. The first balls 501 are vertically and equidistantly distributed on the outer wall of the hexagonal prism metal rod 411. When the first balls 501 contact the workpiece, the rolling first balls 501 convert the static friction generated during clamping into dynamic friction, avoiding damage to the workpiece surface caused by large static friction forces during clamping. A plurality of adsorption holes 502 are provided on the other side of the hexagonal prism metal rod 411. Each adsorption hole 502... Each component is equipped with a suction cup. The suction cup contacts the workpiece, creating a relatively sealed space between them. Air is drawn into the suction holes 502, causing the suction cup to adhere to the workpiece surface, thus completing the adsorption. The other end of each suction hole 502 is connected to an extraction chamber 503. The other end of the extraction chamber 503 is connected to a one-way valve 504. The other end of the one-way valve 504 is connected to an air extraction pipe 505. The other end of the air extraction pipe 505 is connected to a four-way pipe 506. The three ports of the four-way pipe 506 are respectively connected to the three air extraction pipes 505. The remaining opening is connected to the rotating end of the rotary joint via a pipe, and the stationary end of the rotary joint is connected to the vacuum generator. Activation of the vacuum generator draws air into the extraction chamber 503 where the suction cup of the adsorption hole 502 is located. The air is then guided into the extraction pipe 505 through the extraction chamber 503, flows out through the four-way pipe 506, and finally exits completely through the vacuum generator, thus completing the adsorption process. A fixed bracket 507 is fixedly connected to the outside of the four-way pipe 506, and the fixed bracket 507 is fixedly connected to the outer wall of the three-jaw chuck 3. The center positioning component 6 also includes... A first spring 601 is fixedly connected to the outer wall of one end of the fixed bracket 507. An electric suction cup 602 is installed at the other end of the first spring 601. The electric suction cup 602 has an interface. When the electric suction cup 602 is not working, it is charged. When the pressure sensor 603 comes into contact with the workpiece, the electric suction cup 602 is activated and adsorbs the workpiece. The pressure sensor 603 installed at the center of the electric suction cup 602 compresses the first spring 601 according to the size of the workpiece, thereby ensuring the clamping distance of the hexagonal prism metal rod 411.

[0027] like Figure 1 , Figure 2 and Figure 7As shown, the lubrication assembly 7 includes a first sliding structure 701, which is fixedly connected to the inner wall of one side of the three-jaw chuck 3. A cavity is formed on the inner side of the base 1 at the contact position with the flat thread. This cavity is used to place the lubrication assembly 7. When the flat thread rotates, due to the characteristics of the flat thread, the second ball 705 is passively moved spirally towards the center of the flat thread. A second spring 702 is installed at the bottom end of the first sliding structure 701, and an oil tank 703 is installed at the other end of the second spring 702. The oil tank 703 has a fixed size, and an oil filling pipe is connected to the top of the oil tank 703. The oil filling pipe passes through the outer wall of the three-jaw chuck 3 to facilitate oil filling. When the oil volume in the oil tank 703 is just enough to coat the flat thread... The surface of the groove has three oil inlet pipes 704 connected to the bottom of the oil tank 703. Each oil inlet pipe 704 has a second ball bearing 705 connected to its bottom. The two outer second ball bearings 705 contact the side surfaces of the flat thread, while the middle second ball bearing 705 contacts the bottom surface of the flat thread, facilitating the application of lubricant to the three surfaces of the flat thread groove. An iron sheet 706 is fixedly connected to one side of the oil tank 703. The lubrication assembly 7 also includes a second sliding structure 708, which is located on one side of the oil inlet pipes 704 and fixedly connected to the inner wall of the three-jaw chuck 3. An electromagnet 707, which has an L-shaped structure, is slidably connected to the top of the second sliding structure 708. Furthermore, the electromagnet 707 and the iron plate 706 are in the same axial plane, and the other end of the electromagnet 707 passes through the outer wall of the three-jaw chuck 3 via a wire and is equipped with an interface for energization. When the electromagnet 707 is energized, the iron plate 706 is attracted to the lower plane of the electromagnet 707, and during the rotation of the flat thread, the electromagnet 707 and the iron plate 706 move simultaneously. The first sliding structure 701 and the second sliding structure 708 are both composed of slide rails and sliders, used to limit and guide the electromagnet 707 and the second ball 705. An auxiliary structure 9 is installed on the top of one side of the base 1. The auxiliary structure 9 is composed of an auxiliary frame and an auxiliary disk. The auxiliary frame and the auxiliary disk are rotatably connected. When the auxiliary disk contacts the workpiece... The workpiece rotates, causing the auxiliary disk to rotate. Simultaneously, sliders are installed at both ends of the auxiliary frame to facilitate its movement. The sliders are then positioned by a positioning rod, thus facilitating the positioning of the auxiliary frame. A drive structure 8 is installed at the top of the other side of the base 1. The drive structure 8 consists of a motor, pulleys, a belt, and a rotating shaft. The motor output is connected to the belt, the pulley is connected to the belt, and the pulley is fixedly connected to the rotating shaft. The other end of the rotating shaft is fixedly connected to the three-jaw chuck 3. When the motor drives, the output drives the belt, which in turn drives the pulley to rotate, which in turn drives the rotating shaft, which in turn drives the three-jaw chuck 3 to rotate, thus completing the rotation of the workpiece.

[0028] The working principle of the technical solution provided by this invention is as follows: During operation, the equipment first determines the type of workpiece. If it is a metal workpiece, and the first ball bearing 501 is facing the center, the center of the workpiece is aligned with the electric suction cup 602. When the workpiece contacts the pressure sensor 603, the electric suction cup 602 is activated and adsorbs the workpiece. Then, the small bevel gear inside the three-jaw chuck 3 is manually activated, which drives the large bevel gear to rotate. The large bevel gear drives the flat thread groove to rotate, which drives the jaw 401 to move towards the center position. The jaw 401 drives the hexagonal prism metal rod 411 to move towards the metal workpiece, making the first ball bearing 501 on the hexagonal prism metal rod 411 in close contact with the workpiece. Then, the auxiliary structure 9 is moved to contact the other end of the workpiece and is fixed. At this time, the drive structure 8 is activated, which drives the three-jaw chuck 3 to rotate. The three-jaw chuck 3 drives the workpiece to rotate, and then the rotating workpiece is marked with a laser.

[0029] Furthermore, when the workpiece is a plastic product, the electric push rod 403 is activated, which drives the U-shaped rod 404 to reciprocate. The U-shaped rod 404 then drives the U-shaped sleeve 406 to reciprocate, which in turn drives the roller 407 to reciprocate within the wavy groove 409. Since the inner wall of the wavy groove 409 has a certain angle with the axis of the rotating rod 408, the force applied to the inner wall of the wavy groove 409 when the roller 407 rolls on it can be decomposed into a force along the axis of the rotating rod 408 and a tangential force. Since the rotating rod 408 is in a limited position, because... This decomposed tangential force drives the rotating rod 408 to rotate, which in turn drives the connecting sleeve 410 to rotate. The connecting sleeve 410 then drives the hexagonal prism metal rod 411 to rotate, which in turn drives the adsorption hole 502 to rotate to face the workpiece. The hexagonal prism metal rod 411 is then driven to move to the surface of the workpiece in the same manner, so that the adsorption hole 502 is close to the workpiece. At this time, the one-way valve 504 is opened, and the vacuum generator is started. The vacuum generator generates negative pressure, which removes the air at the contact point between the adsorption hole 502 and the workpiece, thereby adsorbing the workpiece. The workpiece is then rotated in the same manner as described above.

[0030] Furthermore, when it is necessary to clean the flat thread on the other side of the bevel gear inside the three-jaw chuck 3, the drive structure 8 is turned off, so that the three-jaw chuck 3 is in a stationary state. The electromagnet 707 is energized, so that the electromagnet 707 generates attraction and attracts the iron plate 706. Then, the attraction of the iron plate 706 drives the second spring 702 to stretch, thereby driving the oil tank 703 to move downward. The oil tank 703 drives the oil inlet pipe 704 to move downward. The oil inlet pipe 704 drives the second ball 705 to move to the inside of the flat thread groove, so that the second ball 705 contacts the inner wall of the flat thread groove. At this time, the oil filling pipe of the oil tank 703 is connected to the oil outlet of the oil injector. The lubricating oil is injected into the oil filling pipe through the oil injector, and then into the oil tank 703 through the oil filling pipe. Finally, the oil inlet pipe 705 is injected into the oil tank 703 through the oil tank 703. 4. Inside, the small bevel gear is manually rotated by a lever, which in turn drives the large bevel gear, which in turn drives the flat thread groove to rotate. The rotating thread groove causes the second ball 705 to roll and move towards the center of the flat thread groove. The rolling second ball 705 then applies lubricating oil to the inner wall of the flat thread groove. After application, the small bevel gear is driven in the opposite direction, which in turn drives the large bevel gear to rotate in the opposite direction, causing the flat thread groove to rotate in the opposite direction. This causes the second ball 705 to move outward and back to its original position. At this point, the electromagnet 707 is de-energized, and the attraction on the electromagnet 707 disappears. The iron plate 706 separates from the electromagnet 707, and the second spring 702 begins to regain its elasticity and drives the oil tank 703 to move in the opposite direction, thus causing the second ball 705 to move out of the flat thread groove.

[0031] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0032] Those skilled in the art will understand that all or part of the steps in the methods of the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc.

[0033] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A rotary mechanical gripping device for a laser marking machine, characterized in that, include: The base (1) has a fixed plate (2) fixedly connected to its top end, and a three-jaw chuck (3) is installed at one end of the fixed plate (2). The three-jaw chuck (3) is provided with three clamping rod adjustment components (4) at one end, which are used to adjust the angle of the metal clamping rod; A clamping assembly (5) is provided on one side of each of the three clamping rod adjustment assemblies (4), and the clamping assembly (5) is used to assist in clamping different types of workpieces; A center positioning component (6) is provided at the center of one end of the three-jaw chuck (3), and the center positioning component (6) is used to position the center of the workpiece. The inner side of the three-jaw chuck (3) is provided with a lubrication component (7), which is used to clean the flat thread groove.

2. The rotary mechanical gripping device for a laser marking machine according to claim 1, characterized in that, The clamping rod adjustment assembly (4) includes a jaw (401), which is installed at one end of a three-jaw chuck (3). A fixed sleeve (402) is fixedly connected to one end of the jaw (401). A sliding groove (405) is provided on one side of the fixed sleeve (402). A U-shaped rod (404) is slidably connected to the inner wall of the two sliding grooves (405). An electric push rod (403) is fixedly connected to the other end of the two U-shaped rods (404). The electric push rod (403) is fixedly connected to the outer wall of the jaw (401).

3. The rotary mechanical gripping device for a laser marking machine according to claim 2, characterized in that, The clamping rod adjustment assembly (4) also includes a U-shaped sleeve (406), which is disposed inside the fixed sleeve (402). The outer walls on both sides of the U-shaped sleeve (406) are fixedly connected to the outer wall of one end of the U-shaped rod (404), and rollers (407) are rotatably connected to the top two sides of the U-shaped sleeve (406).

4. The rotary mechanical gripping device for a laser marking machine according to claim 3, characterized in that, The clamping rod adjustment assembly (4) also includes a rotating rod (408), which is located inside the U-shaped sleeve (406). The outer wall of the rotating rod (408) is provided with a wavy groove (409), which is tumblingly connected to the roller (407).

5. The rotary mechanical gripping device for a laser marking machine according to claim 4, characterized in that, The clamping rod adjustment assembly (4) also includes a connecting sleeve (410), which is rotatably connected to the other end of the fixed sleeve (402). The connecting sleeve (410) penetrates the inner wall of the fixed sleeve (402) and is fixedly connected to the rotating rod (408). The other end of the connecting sleeve (410) is threadedly connected to a hexagonal prism metal rod (411).

6. The rotary mechanical gripping device for a laser marking machine according to claim 5, characterized in that, The clamping assembly (5) includes a plurality of first balls (501), which are fixedly connected to one side of the outer wall of the hexagonal prism metal rod (411). The plurality of first balls (501) are vertically and equidistantly distributed on the outer wall of the hexagonal prism metal rod (411). A plurality of adsorption holes (502) are provided on the other side of the hexagonal prism metal rod (411). The other end of the adsorption holes (502) is connected to an extraction chamber (503). The other end of the extraction chamber (503) is connected to a one-way valve (504). The other end of the one-way valve (504) is connected to an air extraction pipe (505). The other end of the air extraction pipe (505) is connected to a four-way pipe (506). A fixed bracket (507) is fixedly connected to the outside of the four-way pipe (506). The fixed bracket (507) is fixedly connected to the outer wall of the three-jaw chuck (3).

7. The rotary mechanical gripping device for a laser marking machine according to claim 6, characterized in that, The center positioning component (6) also includes a first spring (601), which is fixedly connected to the outer wall of one end of the fixed bracket (507). An electric suction cup (602) is installed at the other end of the first spring (601), and a pressure sensor (603) is installed at the center of the electric suction cup (602).

8. The rotary mechanical gripping device for a laser marking machine according to claim 1, characterized in that, The lubrication assembly (7) includes a first sliding structure (701), which is fixedly connected to the inner wall of one side of the three-jaw chuck (3). A second spring (702) is installed at the bottom end of the first sliding structure (701), and an oil tank (703) is installed at the other end of the second spring (702). The bottom end of the oil tank (703) is connected to three oil inlet pipes (704), and the bottom end of each oil inlet pipe (704) is connected to a second ball bearing (705). An iron sheet (706) is fixedly connected to one side of the oil tank (703).

9. The rotary mechanical gripping device for a laser marking machine according to claim 8, characterized in that, The lubrication assembly (7) further includes a second sliding structure (708), which is disposed on one side of the oil inlet pipe (704). The second sliding structure (708) is fixedly connected to the inner wall of the three-jaw chuck (3), and an electromagnet (707) is slidably connected to the top of the second sliding structure (708).

10. The rotary mechanical gripping device for a laser marking machine according to claim 9, characterized in that, An auxiliary structure (9) is installed on one top side of the base (1), and a driving structure (8) is installed on the other top side of the base (1).

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