Laser marking machine with positioning function

Abstract

The laser marking machine with the positioning function comprises a workbench, four sliding grooves are evenly formed in the workbench, a sliding block is slidably connected to the interior of each sliding groove, a sliding plate is welded to the upper portion of each sliding block, and two through holes are evenly formed in each sliding plate; a push rod is arranged in each through hole in a penetrating mode and sleeved with a spring, a push plate is arranged on one side of the spring, two counterbores are evenly formed in the push plate, the other end of the push rod is arranged in the counterbores in a penetrating mode, a fixing plate is welded to the lower portion of each sliding block, and a connecting rod is welded to one side of the lower portion of each fixing plate. The connecting rod is in a bent rod shape with a certain bending angle in the middle section, a rotating square plate is hinged to the other end of the connecting rod, a positioning shaft is connected with a central shaft hole of the rotating square plate, and the problem that a workpiece needs to be manually positioned by an existing laser marking machine is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of laser marking machines, and in particular relates to a laser marking machine with a positioning function. Background Art

[0002] Laser marking machines use laser beams to make permanent marks on the surfaces of various materials. The marking principle is to expose the deeper materials through the evaporation of the surface materials, or to "carve" traces through the chemical and physical changes of the surface materials caused by light energy, or to burn part of the materials through light energy, thereby carving out exquisite patterns, trademarks and texts. Laser marking machines are widely used in mobile communications, plastic buttons, hardware products, precision instruments, glasses and watches, jewelry, auto parts and many other fields.

[0003] During laser marking, after placing the workpiece on the laser marking machine, the worker needs to manually adjust the position of the workpiece so that the marking position of the workpiece is aligned with the marking machine. The disadvantage of manually adjusting the position of the workpiece is that the position of the workpiece is prone to offset, making it difficult to ensure the accuracy of the laser marking machine's marking work. Sometimes, the position of the workpiece to be marked needs to be adjusted multiple times, which increases working time and reduces marking efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a laser marking machine with a positioning function for existing devices to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a laser marking machine with a positioning function, comprising a workbench, wherein four slide grooves are evenly arranged on the workbench, and a sliding block is slidably connected to the inside of each slide groove, and a sliding plate is welded above each sliding block, and two through holes are evenly arranged on the sliding plate, and a push rod is passed through the inside of each through hole, and a spring is sleeved on the push rod, and a push plate is arranged on one side of the spring, and two countersunk holes are evenly arranged on the push plate, and the other end of the push rod is passed through the countersunk hole, and a fixing plate is welded under each sliding block, and a connecting rod is welded on one side under the fixing plate, and the connecting rod is in the shape of a bent rod with a certain bending angle in the middle section, and the bent rods on both sides of the bending angle are of different lengths, and one end of the longer section of the connecting rod includes a first clamping piece, and one side of the first clamping piece is glued with an extension The extension rod has the second clamping piece glued to the other end of the extension rod, and one end of the second clamping piece is welded to the fixed plate, the first clamping piece and the second clamping piece are adapted to each other and slidably connected, the other ends of the four connecting rods are respectively hinged on the four corners of the rotating square plate, the central axis hole of the rotating square plate is connected with a positioning shaft, and the lower end of the positioning shaft is welded to the fuselage, and the other side below the fixed plate is welded with a first connecting piece, wherein the interiors of the two opposite sides of the first connecting pieces are both provided with connecting rods, and the interiors of the other two opposite sides of the first connecting pieces are not provided with the connecting rods, and the two ends of one of the connecting rods are sleeved with two output shafts, and the other end of each of the output shafts is connected to a pneumatic part, and the other end of each of the pneumatic parts is welded with a second connecting piece, and the two ends of the other connecting rod are respectively provided in the interiors of the two second connecting pieces.

[0006] A first connecting piece is welded to the other side below the fixing plate, wherein a connecting rod is passed through one of the first connecting pieces, and both ends of the connecting rod are respectively passed through one end of two output shafts, and the other end of the output shaft is slidably connected with a pneumatic part, and a second connecting piece is welded to the other end of the pneumatic part, and the connecting rod is passed through the inside of the second connecting piece, and the middle section of the connecting rod is passed through another of the first connecting pieces.

[0007] The present invention further describes that the push rod is a nail-shaped structure, the larger end of which is adapted to the countersunk hole, and when the spring is naturally extended, the smaller end of the push rod is still in the through hole.

[0008] The present invention further describes that the spring is located between the sliding plate and the pushing plate.

[0009] The present invention further describes that four supporting columns are glued to the four corners below the workbench, and a baffle is welded to the lower side of the outer side of the workbench.

[0010] The present invention further describes that the lower side of the baffle is welded to the fuselage, and the lower sides of the four support columns are glued to the fuselage, and four support feet are respectively welded at the four corners of the lower side of the fuselage.

[0011] The present invention further illustrates that the positioning shaft is fixedly installed above the fuselage, and the positioning shaft is located between the rotating square plate and the fuselage.

[0012] The present invention further describes that an operating frame is arranged above the fuselage, a control button is arranged on one side of the operating frame, a display screen is fixedly installed on one side of the operating frame, and the display screen is located above the control button.

[0013] The present invention further illustrates that a lifting plate is slidably connected to one side of the work frame, a laser marking machine is fixedly connected to one side of the lifting plate, a marking head is fixedly connected to the other end of the laser marking machine, and the marking head is located directly above the workbench.

[0014] The present invention further describes that a control system is provided inside the work frame, and among the four push plates, a first pressure sensor is provided on the surface of one of the two opposite push plates on the side in contact with the workpiece, and a second pressure sensor is provided on the surface of one of the other two opposite push plates on the side in contact with the workpiece, and the pneumatic part, the telescopic rod, the first pressure sensor and the second pressure sensor are all electrically connected to the control system. The present invention further illustrates that the control system also includes the following operating steps: Set the pressure value received by the pressure sensor in the clamping state of the workpiece to be greater than or equal to a. When the pressure value received by the pressure sensor is n, the spring will reach the elastic pressure limit. Set the pressure value actually received by the first pressure sensor to be b, and the pressure value actually received by the second pressure sensor to be c. When b and c are both smaller than a, all the push plates fail to clamp the workpiece, the workpiece is not completely positioned, and the control system continues to control the pneumatic parts to continue to retract; When one of b or c is less than a, only the push plates on one side of the pair do not clamp the workpiece, and the workpiece is not completely positioned, and the control system continues to control the pneumatic member to continue to retract; if one of b or c rises to be equal to n, and the other is still less than a, the control system controls the two telescopic rods that have clamped the opposite side to extend; When b and c are both greater than a, all of the push plates clamp the workpiece, the workpiece is completely positioned, and the control system continues to control the pneumatic part to stop retracting.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are: (1) The spring sleeved on the push rod is provided to provide a designed buffer pressure between the sliding plate and the push plate. After a series of mechanical transmissions, the push plates in four directions are driven to move toward the center to clamp the workpiece, so that a pair of opposite push plates first clamp the two sides of the workpiece. Due to the buffering effect of the spring on the pressure, the springs on the outer sides of the two push plates that first clamp the workpiece are compressed, and the two push plates that first clamp the workpiece remain relatively still, while the other two push plates continue to move toward the center until the workpiece is clamped, which is beneficial to achieve the clamping and fixing work for workpieces of different lengths and widths.

[0016] (2) A group of pneumatic parts that are relatively parallel and move in the same direction are provided as a power source, and a series of parts fixed thereon are driven to move in a straight line through the connecting rod. Since the connecting rod is a bent rod with a certain bending angle in the middle section, when the connecting rod moves, the other end drives the rotating square plate to rotate with the positioning axis as the center. The connecting rod and the rotating square plate rotate relative to each other at the connection part, which is conducive to driving the sliding blocks on both sides of the power source that are not provided to slide in the sliding groove at the same time, so as to ensure that the four push plates clamp the workpiece from four different directions of front, back, left and right to complete the workpiece positioning work.

[0017] (3) By providing the connecting rod including the first clamping part connected to the second clamping part through the telescopic rod, and the first clamping part and the second clamping part are adapted to each other and slidably connected, it is beneficial to adapt to the clamping and positioning of workpieces with a large length and width difference. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 is a schematic diagram of the structure of components below the workbench of an embodiment of the present invention; Figure 3 yes Figure 1 A magnified schematic diagram of the middle A area; Figure 4 is a cross-sectional view of a push piece connection portion of an embodiment of the present invention; Figure 5 is a schematic diagram of the connection between the fuselage workbench and the fuselage of an embodiment of the present invention; Figure 6 is a schematic diagram of the position of the positioning shaft of an embodiment of the present invention; Figure 7 is a schematic diagram of a connecting rod structure of an embodiment of the present invention; Figure 8is a schematic diagram of cooperation between a first clamping member and a second clamping member in an embodiment of the present invention; In the figure: 1. workbench; 2. slide groove; 3. sliding block; 4. sliding plate; 41. through hole; 5. push rod; 51. spring; 6. push plate; 61. countersunk hole; 7. fixed plate; 8. connecting rod; 81. first clamping part; 82. second clamping part; 83. telescopic rod; 9. rotating square plate; 10. positioning shaft; 11. first connecting part; 12. connecting rod; 13. output shaft; 14. pneumatic part; 141. second connecting part; 15. support column; 151. baffle; 16. fuselage; 161. support pad; 17. work frame; 18. control button; 19. display screen; 20. lifting plate; 21. laser marking machine; 22. marking machine head. DETAILED DESCRIPTION

[0019] The following is a further non-limiting detailed description of the technical solution of the present invention in conjunction with the preferred embodiments and the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] The embodiment of the present invention provides a laser marking machine with a positioning function. Figure 1 Schematic diagram of the overall structure of an embodiment of the present invention, as shown in Figure 1 As shown, the laser marking machine with positioning function comprises a workbench 1, on which four slide grooves 2 are evenly arranged. Figure 3 As shown, each of the slide grooves 2 is slidably connected to a sliding block 3, and a sliding plate 4 is welded above each of the sliding blocks 3. Two through holes 41 are evenly provided on the sliding plate 4, and a push rod 5 is penetrated inside each of the through holes 41. A spring 51 is sleeved on the push rod 5, and a push plate 6 is provided on one side of the spring 51. Two countersunk holes 61 are evenly provided on the push plate 6, and the other end of the push rod 5 is penetrated in the countersunk hole 61, as shown in FIG. Figure 2 As shown, a fixing plate 7 is welded below each sliding block 3, and a connecting rod 8 is welded on one side below the fixing plate 7. The connecting rod 8 is a bent rod with a certain bending angle in the middle section, and the lengths of the bent rods on both sides of the bending angle are different, which is conducive to providing a longer travel for the sliding block 3. Figure 7 and Figure 8As shown, one end of the longer section of the connecting rod 8 includes a first clamping member 81, a telescopic rod 83 is glued to one side of the first clamping member 81, and a second clamping member 82 is glued to the other end of the telescopic rod 83. The first clamping member 81 and the second clamping member 82 are adapted to each other and slidably connected, and one end of the second clamping member 82 is welded to the fixed plate 7. The first clamping member 81 and the second clamping member 82 slide relative to each other through the telescopic rod 83, which is conducive to the clamping and positioning of workpieces with large length and width differences. The other ends of the four connecting rods 8 are respectively hinged on the four corners of the rotating square plate 9, and the central shaft hole of the rotating square plate 9 is connected to the positioning shaft 10, and the lower end of the positioning shaft 10 is welded with a body 16. The other side below the fixed plate 7 is welded with a first connecting member 11, wherein the interiors of the first connecting members 11 on the two opposite sides are both penetrated with connecting rods 12, and the interiors of the first connecting members 11 on the other two opposite sides are not provided with the connecting rods 12, which is conducive to reducing the number of power components used and saving costs. Both ends of one of the connecting rods 12 are sleeved with an output shaft 13, the other end of each output shaft 13 is connected to a pneumatic part 14, the other end of each pneumatic part 14 is welded with a second connecting part 141, and the two ends of the other connecting rod 12 are respectively inserted into the inside of the two second connecting parts 141. By setting a group of pneumatic parts 14 that are relatively parallel and move in the same direction as the power source, the connecting rod 12 drives a series of parts fixed thereon to move in a straight line, and the sliding block 3 drives the various parts connected thereon to move in the slide groove 2. At the same time, the connecting rod 8 is affected by the traction force of the movement of the fixed plate 7 and moves accordingly. Since the connecting rod 8 is a bent rod with a certain bending angle in the middle section, and the positioning axis 10 is provided at the center of the rotating square plate 9, when the connecting rod 8 moves, the other end drives the rotating square plate 9 to rotate with the positioning axis 10 as the center. At the same time, the connecting rod 8 and the rotating square plate 9 are hingedly connected so that the connecting part of the connecting rod 8 and the rotating square plate 9 rotates relative to each other, which is conducive to driving the sliding blocks 3 on both sides of the power source that are not provided to slide in the slide groove 2 at the same time, so as to ensure that the four push plates 6 clamp the workpiece from four different directions of front, back, left and right to complete the workpiece positioning work.

[0021] In certain preferred embodiments, Figure 4 As shown, the push rod 5 is a nail-shaped structure, and the larger end is adapted to the countersunk hole 61, and when the spring 51 is naturally extended, the smaller end of the push rod 5 is still in the through hole 41 to ensure that the push rod 5 does not derail.

[0022] In certain preferred embodiments, Figure 4As shown, the spring 51 is located between the sliding plate 4 and the push plate 6. The design of using the spring 51 sleeved on the push rod 5 and located directly between the sliding plate 4 and the push plate 6 is conducive to buffering pressure. When the push plates 6 in four directions are driven to move toward the center to clamp the workpiece through the above series of mechanical transmissions, a pair of opposite push plates 6 first clamp the two sides of the workpiece, and then the pneumatic part 14 continues to contract and drives the four push plates 6 to push toward the center. Due to the buffering effect of the spring 51 on the pressure, the spring 51 on the outer side of the two push plates 6 that first clamp the workpiece is compressed, and the two push plates 6 that first clamp the workpiece remain relatively still, while the other two push plates 6 continue to push toward the center until the workpiece is clamped, which is conducive to achieving clamping and fixing work for workpieces of different lengths and widths.

[0023] In certain preferred embodiments, Figure 1 and Figure 5 As shown, four support columns 15 are glued to the four corners below the workbench 1, and a baffle 151 is welded below the outer side of the workbench 1. The baffle 151 is beneficial to protecting the parts assembly structure below the workbench 1 and improving the ornamental value of the equipment.

[0024] In certain preferred embodiments, Figure 1 As shown, the lower side of the baffle 151 is welded to the fuselage 16, and the lower parts of the four support columns 15 are glued to the fuselage 16, and four support feet 161 are respectively welded at the four corners of the lower part of the fuselage 16, and the support columns 15 and the support feet 161 are conducive to improving the stability of the equipment.

[0025] In certain preferred embodiments, Figure 6 As shown, the positioning shaft 10 is fixedly installed above the fuselage 16, and the positioning shaft 10 is located between the rotating square plate 9 and the fuselage 16. The positioning shaft 10 is conducive to making the four push plates 6 approach or move away from it as the center through the connection and cooperation with the rotating square plate 9 and the connecting rod 8 and the transmission of the power of the pneumatic part 14, which serves as a workpiece position fixing point. At the same time, the lateral positions of the pneumatic part 14 and the output shaft 13 are not completely fixed. The pneumatic part 14 and the output shaft 13 move toward each other with the positioning shaft 10 as the center, which is conducive to the push plates 6 in four different directions always approaching or moving away from the center at an equal distance.

[0026] In certain preferred embodiments, Figure 1 As shown, a work frame 17 is disposed above the body 16 , a control button 18 is disposed on one side of the work frame 17 , a display screen 19 is fixedly mounted on one side of the work frame 17 , and the display screen 19 is located above the control button 18 .

[0027] In certain preferred embodiments, Figure 1 As shown, a lifting plate 20 is slidably connected to one side of the work frame 17, a laser marking machine 21 is fixedly connected to one side of the lifting plate 20, a marking head 22 is fixedly connected to the other end of the laser marking machine 21, and the marking head 22 is located directly above the workbench 1.

[0028] In some preferred embodiments, in order to achieve control over the clamping part of the marking machine, a control system is provided inside the work frame 17. Among the four push plates 6, one of the two opposite push plates 6 is provided with a first pressure sensor on its surface that contacts the workpiece, and one of the other two opposite push plates 6 is provided with a second pressure sensor on its surface that contacts the workpiece. The pneumatic part 14, the telescopic rod 83, the first pressure sensor and the second pressure sensor are all electrically connected to the control system.

[0029] In the above embodiment, the control system further includes the following operating steps: In order to realize the control system to ensure that the workpiece is completely positioned before marking, the pressure value received by the pressure sensor in the clamping state of the workpiece is set to be greater than or equal to a. When the pressure value received by the pressure sensor is n, the spring 51 will reach the elastic pressure limit, that is, if the pressure is continued to be applied to the spring 51, the spring 51 will be plastically deformed and lose its elasticity. The pressure value actually received by the first pressure sensor is set to b, and the pressure value actually received by the second pressure sensor is set to c. When b and c are both smaller than a, all the push plates 6 do not clamp the workpiece, and the workpiece is not completely positioned, and the control system continues to control the pneumatic member 14 to continue to retract, and the push plates 6 will continue to push inward to clamp the workpiece; When one of b or c is less than a, only the push plate 6 on one side of the pair does not clamp the workpiece, and the workpiece is not fully positioned, and the control system continues to control the pneumatic part 14 to continue to retract. The push plate 6 on the clamped opposite side remains relatively still due to the buffering effect of the spring 51 and the reaction force of the workpiece, and the push plate 6 on the other opposite side will continue to push inward to clamp the workpiece. If one of b or c rises to be equal to n, and the other is still less than a, the control system controls the two telescopic rods 83 on the clamped opposite side to extend, driving the second clamping part 82 to slowly slide outward along the first clamping part 81 and ensuring that the pressure received by the pressure sensor on the clamping side is between a and n, so as to relieve the pressure of the spring 51, until the pressure received by the other pressure sensor reaches a, and the push plate 6 completely clamps and positions the workpiece, and the control system controls the pneumatic part 14 to stop retracting, and at the same time controls the telescopic rod 83 to stop extending, so as to achieve the positioning of the workpiece; When b and c are both greater than a, all the push plates 6 clamp the workpiece and the workpiece is completely positioned. The control system continues to control the pneumatic part 14 to stop retracting, so that the workpiece remains in a completely positioned state for the next step of marking.

[0030] The working principle of the embodiment of the present invention is as follows: the workpiece to be marked is placed on the workbench 1, and the control button 18 is pressed to start the device. The control system controls the pneumatic part 14 to contract, and the pneumatic part 14 and the output shaft 13 retract relatively. The connecting rod 12 connected to the output shaft 13 and the second connecting member 141 respectively drives a series of parts fixedly connected to the connecting rod 12 to translate inward along the slide groove 2. At the same time, the connecting rod 8 is affected by the traction force of the translational fixed plate 7 and moves accordingly. When the connecting rod 8 moves, the other end drives the rotating square plate 9 to rotate with the positioning shaft 10 as the center of the circle. Through the four The connection between the connecting rod 8 and the rotating square plate 9 drives the sliding blocks 3 on both sides of the unpowered source to slide in the slide groove 2 at the same time, and the push plates 6 in four directions are pushed toward the positioning axis 10. After a pair of opposite push plates 6 first clamp the two sides of the workpiece, the pneumatic part 14 continues to contract and drives the four push plates 6 to push toward the center. Due to the buffering of the pressure by the spring 51, the two push plates 6 that first clamp the workpiece remain relatively still, while the other two push plates 6 continue to push toward the center until the workpiece is clamped until the four push plates 6 clamp the workpiece from four different directions, front, back, left, and right, respectively, to complete the workpiece positioning work. Then, the workpiece is laser marked. After the laser marking is completed, the control system controls the pneumatic part 14 to extend, and the pneumatic part 14 is transmitted in the opposite direction through the appellate mechanism until the push plate 6 moves to the initial position and separates from the workpiece. The staff removes the marked workpiece to complete the laser marking work.

[0031] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0032] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A laser marking machine with a positioning function, comprising a workbench (1), characterized in that: The workbench (1) is evenly provided with four slide grooves (2), each of which is slidably connected to a sliding block (3), a sliding plate (4) is welded above each of which, two through holes (41) are evenly provided on the sliding plate (4), a push rod (5) is passed through the inside of each of which, a spring (51) is sleeved on the push rod (5), a push plate (6) is provided on one side of the spring (51), two countersunk holes (61) are evenly provided on the push plate (6), and the push rod (5) is provided with a spring (51) sleeved on the push rod (5), a push plate (6) is provided on one side of the spring (51), and two countersunk holes (61) are evenly provided on the push plate (6). The other end of the rod (5) is inserted into the countersunk hole (61), a fixing plate (7) is welded below each of the sliding blocks (3), a connecting rod (8) is welded on one side below the fixing plate (7), the connecting rod (8) is in the shape of a bent rod with a certain bending angle in the middle section, and the bent rods on both sides of the bending angle are of different lengths, one end of the longer section of the connecting rod (8) includes a first clamping member (81), a telescopic rod (83) is glued to one side of the first clamping member (81), and the other end of the telescopic rod (83) is glued to a second clamping member (82), One end of the second clamping member (82) is welded to the fixed plate (7); the first clamping member (81) and the second clamping member (82) are adapted to each other and are slidably connected; the other ends of the four connecting rods (8) are respectively hinged to the four corners of the rotating square plate (9); a positioning shaft (10) is connected to the central shaft hole of the rotating square plate (9); and a body (16) is welded to the lower end of the positioning shaft (10); a first connecting member (11) is welded to the other side below the fixed plate (7); and the first connecting member (11) on two opposite sides of the ... A connecting rod (12) is inserted into each of the connecting members (11); the connecting rod (12) is not inserted into the other two opposite first connecting members (11); two output shafts (13) are sleeved at both ends of one of the connecting rods (12); the other end of each of the output shafts (13) is connected to a pneumatic member (14); the other end of each of the pneumatic members (14) is welded to a second connecting member (141); and the two ends of the other connecting rod (12) are respectively inserted into the two second connecting members (141).

2. The laser marking machine with positioning function according to claim 1, characterized in that: The push rod (5) is a nail-shaped structure, the larger end of which is adapted to the countersunk hole (61), and when the spring (51) is naturally extended, the smaller end of the push rod (5) is still in the through hole (41).

3. The laser marking machine with positioning function according to claim 2, characterized in that: The spring (51) is located between the sliding plate (4) and the push plate (6).

4. The laser marking machine with positioning function according to claim 3, characterized in that: Four support columns (15) are respectively glued to the four corners below the workbench (1), and a baffle (151) is welded to the lower side of the outer side of the workbench (1).

5. The laser marking machine with positioning function according to claim 4, characterized in that: The lower side of the baffle (151) is welded to the fuselage (16), and the lower sides of the four support columns (15) are glued to the fuselage (16), and four support feet (161) are respectively welded at the four corners of the lower side of the fuselage (16).

6. The laser marking machine with positioning function according to claim 5, characterized in that: The positioning shaft (10) is fixedly mounted above the machine body (16), and the positioning shaft (10) is located between the rotating square plate (9) and the machine body (16).

7. The laser marking machine with positioning function according to claim 6, characterized in that: An operating frame (17) is arranged above the machine body (16), a control button (18) is arranged on one side of the operating frame (17), a display screen (19) is fixedly mounted on one side of the operating frame (17), and the display screen (19) is located above the control button (18).

8. The laser marking machine with positioning function according to claim 7, characterized in that: A lifting plate (20) is slidably connected to one side of the work frame (17), a laser marking machine (21) is fixedly connected to one side of the lifting plate (20), a marking machine head (22) is fixedly connected to the other end of the laser marking machine (21), and the marking machine head (22) is located directly above the workbench (1).

9. The laser marking machine with positioning function according to claim 8, characterized in that: A control system is provided inside the work frame (17); among the four push plates (6), a first pressure sensor is provided on the surface of one of the two opposite push plates (6) that contacts the workpiece, and a second pressure sensor is provided on the surface of the other two opposite push plates (6) that contacts the workpiece; the pneumatic part (14), the telescopic rod (83), the first pressure sensor and the second pressure sensor are all electrically connected to the control system.

10. The laser marking machine with positioning function according to claim 9, characterized in that: The control system also includes the following operating steps: The pressure value received by the pressure sensor in the clamping state of the workpiece is set to be greater than or equal to a, when the pressure value received by the pressure sensor is n, the spring (51) will reach the elastic pressure limit, the pressure value actually received by the first pressure sensor is set to be b, and the pressure value actually received by the second pressure sensor is set to be c; When b and c are both smaller than a, all the push plates (6) do not clamp the workpiece, the workpiece is not completely positioned, and the control system continues to control the pneumatic part (14) to continue to recycle; When one of b or c is smaller than a, only the push plates (6) on one side of the pair do not clamp the workpiece, and the workpiece is not completely positioned, and the control system continues to control the pneumatic member (14) to continue to retract; if one of b or c rises to be equal to n, and the other is still smaller than a, the control system controls the two telescopic rods (83) that have clamped the opposite side to extend; When b and c are both greater than a, all of the push plates (6) clamp the workpiece, the workpiece is completely positioned, and the control system continues to control the pneumatic part (14) to stop retracting.

Images