A kind of MIM part laser etching scanning code equipment

Abstract

The application provides a MIM part laser engraving code scanning equipment and belongs to the technical field of laser engraving code scanning.The equipment comprises a control component, a feeding component, a conveying component, a laser engraving component, a code scanning component and a discharging component which are controlled by the control component.The conveying component comprises a rotating disc, a motor below the rotating disc drives the rotating disc to rotate, two or more positioning jigs are uniformly arranged in a circle on the rotating disc, the positioning jigs comprise a base mounted on the rotating disc and a driving structure, a through slot is formed in the base, the through slot is a rectangular slot, and a lower positioning structure is mounted in the through slot.When laser engraving is needed on a large arc or different arc positions of a shaft part, the platen is moved along the radial direction of the rotating disc to be separated from the shaft part, the platen presses the shaft part and generates relative friction with the shaft part to drive the shaft part to rotate, and the shaft part is laser engraved, so that specific jigs for different shaft parts are not needed, and the production cost of enterprises is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of laser engraving and code scanning, and in particular to a MIM part laser engraving and code scanning device. Background Art

[0002] Metal Powder Injection Molding (MIM) is a novel molding technology that combines the advantages of plastic injection molding and metal powder metallurgy, integrating injection molding with rapid powder sintering. As a near-net-shape technology, MIM can directly achieve large-scale production of high-density, high-precision, small-sized structural components.

[0003] Laser engraving, also known as laser engraving or laser marking, is a surface treatment process based on optical principles. Specifically, it uses a laser beam to carve a permanent mark on the surface of a material or inside a transparent material. The laser beam can produce both chemical and physical effects on the material. When the material instantly absorbs the laser light, a physical or chemical reaction occurs, thereby carving marks or displaying patterns or text. Therefore, the laser engraving machine is also called a laser marking machine or a laser engraving machine.

[0004] In order to improve the convenience of product information retrieval of MIM parts and ensure the stability of the retrieval channel, a commonly used solution is to laser engrave a QR code or other product information on the circumferential side of the MIM part. When a QR code is laser engraved on the MIM part, the specific information of the shaft product can be understood by scanning the QR code. This method is not difficult for MIM parts with regular planes or small arc planes, but it has greater limitations for shaft parts. Because the shaft products themselves have a large curvature, the laser engraved QR code is large or when multiple QR codes or other identification information need to be laser engraved, the shaft parts need to be manually or mechanically driven to rotate, but the diameters of different shaft parts are different. Therefore, in order to ensure that the shaft parts rotate along a constant axis, it is often necessary to customize fixtures that are suitable for shaft parts of different diameters, which increases the processing cost of the shaft parts. Therefore, the present application provides a MIM part laser engraving and scanning device to meet the needs. Summary of the Invention

[0005] The present invention provides an MIM parts laser engraving and code scanning device to solve the problem that when shaft products themselves have a large curvature, resulting in a large laser-engraved QR code or when multiple QR codes or other identification information need to be laser-engraved, the shaft parts need to be manually or mechanically driven to rotate. However, the diameters of different shaft parts are different. Therefore, in order to ensure that the shaft parts rotate along a constant axis, it is often necessary to customize fixtures that are suitable for shaft parts of different diameters, which increases the processing cost of the shaft parts.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A MIM parts laser engraving and code scanning device, comprising a control component and a feeding component, a conveying component, a laser engraving component, a code scanning component, and a discharging component controlled by the control component;

[0008] Preferably, the conveying component includes a turntable, a motor for driving the turntable to rotate is provided below the turntable, two or more positioning jigs are evenly arranged on the turntable in a circle, the positioning jigs include a base mounted on the turntable and a driving structure, a through slot is provided on the base, the through slot is a rectangular slot, a lower positioning structure is installed in the through slot, and an upper positioning structure is installed on the base;

[0009] Preferably, the lower positioning structure is adapted to shaft parts of different diameters by providing an inverted triangular groove that is proportionally enlarged under the extrusion of the shaft part, and the centerline position of the inverted triangular groove remains unchanged when the inverted triangular groove is proportionally enlarged;

[0010] Preferably, a plurality of pressure rods are provided on a side of the upper positioning structure close to the axis of the turntable.

[0011] Preferably, when the upper positioning structure is fitted with the top of the base under the drive of the lower positioning structure, the highest point of the side of the shaft part in the inverted triangle groove is squeezed by the upper positioning structure to be flush with the top of the base. Then, the driving structure drives the upper positioning structure to slide radially along the turntable against the top of the base until downward pressure is applied to the shaft part through the pressure rod. The laser engraving component and the code scanning component are used to laser engrave and scan the shaft parts in turn above the unobstructed position of the shaft parts.

[0012] Preferably, second long grooves are formed on the inner walls on opposite sides of the through groove, the same first sliding rod is slidably connected in the two second long grooves, and the same limiting plate is installed between the two inner walls with the second long grooves, and the lengths of the limiting plate and the first sliding rod are parallel to the axis of the shaft part to be processed;

[0013] The top of described sliding panel also is provided with an interlock plate, and the interlock plate is hinged on the base plate, is fixed with a backing pin on the interlock plate, and an end of sliding panel withstands on the backing pin of interlock plate, and an end of sliding panel withstands on the backing pin of interlock plate.

[0014] Preferably, the driving structure includes two side brackets installed on the top of the base, the two side brackets are respectively located on both sides of the through slot, and a first guide slot that runs through the side bracket is opened on the side bracket, the driving structure also includes a telescopic driving unit installed on the turntable, the telescopic end of the telescopic driving unit is connected to the second connecting frame, the second connecting frame is U-shaped and semi-enclosed outside the two side brackets, the first connecting frame is installed on the end of the second connecting frame away from the telescopic driving unit, the first connecting frame is in an inverted U-shape and semi-enclosed outside the upper positioning structure and the side brackets, and a plurality of second guide slots are respectively opened on both side walls of the first connecting frame, the plurality of second guide slots are arranged in a vertical direction, and the plurality of second guide slots are parallel to each other;

[0015] Preferably, the first guide groove includes a horizontal section and a plurality of inclined sections connected to the horizontal section, the plurality of inclined sections are parallel to each other, and the number of the inclined sections is the same as the number of the second guide groove;

[0016] Preferably, the upper positioning structure includes at least two second sliding rods, both ends of the second sliding rods respectively pass through the corresponding inclined sections on the two side brackets, and the same pressure plate is installed on multiple second sliding rods. The bottom of the pressure plate is rectangular, and the bottom of the pressure plate is parallel to the top of the base. The length of the pressure plate is greater than the length of the through slot, and the pressure rod is installed on the side of the pressure plate close to the axis of the turntable.

[0017] Preferably, two first long grooves are symmetrically provided on the pressure plate, the shortest distance between the two first long grooves is greater than the width of the movable positioning block, and a fastener is installed on the pressure rod, which passes through the first long groove to fix the pressure rod on the pressure plate.

[0018] Preferably, an anti-skid pad is embedded in the bottom of the pressure rod, and the bottom of the anti-skid pad is flush with the bottom of the pressure rod.

[0019] Preferably, a groove is provided at the bottom of one side of the pressing plate, and one end of the pressing rod close to the pressing plate is adapted to fit the groove.

[0020] Preferably, a shield is provided on the top of the movable positioning block, and the shield is used to cover the top of one side of the movable positioning block mounting elastic member. A first retreat groove is opened on the top of the base, and the shield can retreat into the first retreat groove. The depth of the first retreat groove is greater than the thickness of the shield.

[0021] Preferably, the shield is arranged to be tilted upward at one end away from the positioning slope.

[0022] Preferably, a plurality of insertion holes are evenly opened on the positioning inclined surfaces of the two movable positioning blocks at the end, and the two movable positioning blocks at the end are installed with side positioning structures for positioning the cross section of shaft parts through the insertion holes;

[0023] Preferably, the side positioning structure includes two plug-in blocks, the bottom of the plug-in blocks are plug-fitted into the sockets, the two plug-in blocks are vertically arranged on the side close to each other, and the top of the plug-in blocks is provided with elastic bars, and the two elastic bars are arranged in an eight-shaped shape. Two second retreat grooves are symmetrically opened on the top of the base, and the elastic bars can retreat into the second retreat grooves under force, and the depth of the second retreat grooves is greater than the thickness of the elastic bars.

[0024] Preferably, the bottom inner wall of the insertion hole is arranged to be inclined downward.

[0025] Compared with the prior art, the present invention has at least the following beneficial effects:

[0026] The above scheme can center shaft parts of different diameters within a preset range, and the highest point of the side of the positioned shaft parts is in the same position, avoiding the radial displacement of the shaft parts in the turntable, reducing or avoiding the adjustment operation of the height or horizontal position of the laser engraving machine in the laser engraving parts, reducing the probability of device debugging, and improving the convenience of processing small batches of shaft parts of different models. At the same time, when it is necessary to laser engrave positions with larger arcs or different arcs of shaft parts, the pressure plate can be moved along the radial direction of the turntable until it is separated from the shaft parts, and the pressure rod presses the shaft parts down and generates relative friction with the shaft parts to drive the shaft parts to rotate, and then the shaft parts can be laser engraved. There is no need to customize specific fixtures for different shaft parts, which reduces the production cost of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the three-dimensional structure of the turntable and positioning fixture assembly;

[0028] Figure 2 This is a schematic diagram of the three-dimensional structure of the positioning fixture;

[0029] Figure 3 Schematic diagram of the three-dimensional structure of the base;

[0030] Figure 4 A partial cross-sectional diagram of the assembly of the base and the lower positioning structure;

[0031] Figure 5 A schematic diagram of the three-dimensional structure of the upper positioning structure and the driving structure;

[0032] Figure 6 Schematic diagram of the three-dimensional structure of the movable positioning block and the side positioning structure assembly;

[0033] Figure 7 Schematic diagram of the three-dimensional structure of the upper positioning structure.

[0034] Figure numerals: 1. turntable; 2. positioning fixture; 3. base; 4. through slot; 5. lower positioning structure; 6. upper positioning structure; 7. driving structure; 8. side positioning structure; 9. movable positioning block; 10. elastic member; 11. side bracket; 12. first guide groove; 13. first connecting frame; 14. pressure plate; 15. fastener; 16. first long groove; 17. pressure rod; 18. second connecting frame; 19. positioning inclined plane; 20. limit plate; 21. first slide bar; 22. second long groove; 23. third long groove; 24. fourth long groove; 25. shield; 26. socket; 27. plug block; 28. elastic bar; 29. ​​second slide bar; 30. groove; 31. first retreat groove; 32. second retreat groove; 33. second guide groove; 34. laser engraving component; 35. code scanning component.

[0035] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the appended claims. DETAILED DESCRIPTION

[0036] The following describes in detail a MIM part laser engraving and barcode scanning device provided by the present invention, with reference to the accompanying drawings and specific embodiments. It is also noted that, to provide a more detailed description, the following embodiments are optimal and preferred embodiments, and those skilled in the art may employ alternative implementations for known technologies. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0037] An embodiment of the present invention provides a MIM part laser engraving and code scanning device, including a control component and a feeding component, a conveying component, a laser engraving component 34, a code scanning component 35, and a discharging component controlled by the control component. The feeding component and the discharging component can be mechanical claws in the prior art or replaced by manual labor. The laser engraving component 34 and the code scanning component 35 are only used to laser engrave and scan the product. Their functions are conventional designs in this technical field and are not described in detail here.

[0038] like Figure 1-Figure 2 As shown, in this embodiment, the conveying component includes a turntable 1, and a motor for driving the turntable 1 to rotate is provided under the turntable 1. Two or more positioning fixtures 2 are evenly arranged in a circle on the turntable 1. The positioning fixture 2 includes a base 3 and a driving structure 7 installed on the turntable 1. A through groove 4 is provided on the base 3, and the through groove 4 is a rectangular groove. A lower positioning structure 5 is installed in the through groove 4, and an upper positioning structure 6 is installed on the base 3; the lower positioning structure 5 is adapted to shaft parts of different diameters by being provided with an inverted triangular groove that is proportionally enlarged under the extrusion of the shaft parts, and the center line position remains unchanged when the inverted triangular groove is proportionally enlarged; a plurality of pressure rods 17 are provided on the side of the upper positioning structure 6 close to the axis of the turntable 1.

[0039] like Figure 3 As shown, in this embodiment, second long grooves 22 are formed on the inner walls on opposite sides of the through groove 4, and the same first slide bar 21 is slidably connected in the two second long grooves 22. The same limit plate 20 is installed between the two inner walls with the second long grooves 22. The lengths of the limit plate 20 and the first slide bar 21 are parallel to the axis of the shaft part to be processed;

[0040] like Figure 3 and Figure 4 As shown, in this embodiment, the lower positioning structure 5 includes a plurality of movable positioning blocks 9 arranged in a centrally symmetrical manner in the through groove 4, the top of the movable positioning block 9 is lower than the top of the base 3, and there are three or more movable positioning blocks 9. The top of the movable positioning block 9 is provided with a positioning inclined surface 19 extending obliquely downward to the side of the movable positioning block 9. The positioning inclined surfaces 19 on the plurality of movable positioning blocks 9 together constitute an inverted triangular groove with an open top. The side of the movable positioning block 9 away from the inverted triangular groove is equipped with an elastic member 10 connected to the inner wall of the through groove 4, which can be a spring or shrapnel in the prior art.

[0041] like Figure 3 、 Figure 4 and Figure 6As shown in the drawings, in this embodiment, the movable positioning block 9 is provided with a third long slot 23 and a fourth long slot 24 penetrating the movable positioning block 9 on opposite sides of the movable positioning block 9, the third long slot 23 is in sliding connection with the first sliding rod 21, the fourth long slot 24 is in sliding connection with the limiting plate 20, the movable positioning block 9 can slide along the radial direction of the rotating disc 1 under the sliding cooperation of the limiting plate 20 and the fourth long slot 24, and the third long slot 23 is arranged in an inclined manner.

[0042] As shown in the drawings, Figure 2-Figure 5 As shown in the drawings, in this embodiment, the driving structure 7 includes two side supports 11 installed on the top of the base 3, the two side supports 11 are respectively located on the two sides of the through slot 4, the side support 11 is provided with a first guide slot 12 penetrating the side support 11, the driving structure 7 further includes a telescopic driving unit installed on the rotating disc 1, the telescopic driving unit can be a telescopic air cylinder or an electric push rod in the prior art, the telescopic end of the telescopic driving unit is connected with a second connecting frame 18, the second connecting frame 18 is in a U-shaped half-enclosed manner outside the two side supports 11, one end of the second connecting frame 18 away from the telescopic driving unit is provided with a first connecting frame 13, the first connecting frame 13 is in an inverted U-shaped half-enclosed manner outside the upper positioning structure 6 and the side support 11, a plurality of second guide slots 33 are respectively formed in the two side walls of the first connecting frame 13, the plurality of second guide slots 33 are arranged in a vertical direction and are parallel to each other; the first guide slot 12 includes a horizontal section and a plurality of inclined sections in communication with the horizontal section, the plurality of inclined sections are parallel to each other, and the number of the inclined sections is the same as the number of the second guide slots 33; the upper positioning structure 6 includes at least two second sliding rods 29, the two ends of the second sliding rod 29 penetrate the corresponding inclined sections on the two side supports 11 respectively, the same pressing plate 14 is installed on the plurality of second sliding rods 29, and the pressing rod 17 is installed on the side of the pressing plate 14 close to the axis of the rotating disc 1.

[0043] When the device is working, the control component controls the feeding component to grab the shaft parts and put them into the inverted triangular groove. Subsequently, the control component controls the telescopic driving unit to extend. The telescopic driving unit drives the first connecting frame 13 to move along the radial direction of the turntable 1 to the side away from the axis of the turntable 1 through the second connecting frame 18. Under the guidance of the second guide groove 33 and the inclined section of the second long groove 22, the first connecting frame 13 drives the pressing plate 14 to move obliquely downward along the inclined section through the second sliding rod 29 until the pressing plate 14 contacts and squeezes the shaft parts placed in the inverted triangular groove. The bottom of the plate 14 fits with the top of the base 3, and the shaft parts are limited to the position to be processed. At this time, the first connecting frame 13 that continues to move drives the pressing plate 14 to move along the horizontal section of the first guide groove 12 in the direction away from the axis of the turntable 1. When the pressing plate 14 is completely moved to one side of the through groove 4, it stops (it can also be stopped when the pressing plate 14 does not block the position to be processed at the top of the shaft parts. The whole process can be controlled manually or automatically controlled by using a visual sensor to detect the position information of the shaft parts and the pressing plate 14). It should be noted that the shaft parts press the positioning inclined surface 1 downward. 9, the movable positioning block 9 squeezes the elastic member 10, and under the restriction of the second long groove 22 and the plurality of third long grooves 23 and the limiting plate 20 and the plurality of fourth long grooves 24, the first slide bar 21 slides vertically downward along the second long groove 22, so that the plurality of movable positioning blocks 9 move synchronously, so that the inverted triangular grooves are proportionally enlarged. The advantage of such a setting is that shaft parts of different diameters within a preset range can be centered, and the highest point position of the side of the positioned shaft parts is the same, which avoids the radial deviation of the shaft parts in the turntable 1 and reduces or avoids There is no need to adjust the height or horizontal position of the laser engraving machine in the laser engraving component 34, which reduces the probability of device debugging and improves the convenience of processing small batches of different types of shaft parts. At the same time, when it is necessary to laser engrave positions with larger arcs or different arcs of shaft parts, the pressure plate 14 can be moved radially along the turntable 1 until it is separated from the shaft parts, and the pressure rod 17 presses down the shaft parts and generates relative friction with the shaft parts to drive the shaft parts to rotate. The shaft parts can be laser engraved without customizing specific jigs for different shaft parts, thereby reducing the production cost of the enterprise.

[0044] The shaft parts are moved in sequence to the positions of the feeding component, the laser engraving component 34, the code scanning component 35 and the discharging component through the rotation of the turntable 1. That is, when four or more positioning fixtures 2 are provided on the turntable 1, it can be ensured that each workstation is in working condition, thereby realizing efficient processing of the shaft parts.

[0045] When it is necessary to grab the shaft parts that have been laser engraved and scanned, the telescopic drive unit contracts, and the pressure plate 14 can be reset through the second connecting frame 18, the first connecting frame 13 and the second slide rod 29, and the subsequent cycle operation is carried out through the discharging component and the feeding component.

[0046] like Figure 7As shown, in this embodiment, the bottom of the pressure plate 14 is arranged in a rectangular shape, and the bottom of the pressure plate 14 is arranged parallel to the top of the base 3. The length of the pressure plate 14 is greater than the length of the through slot 4. The advantage of this arrangement is that when the telescopic drive unit contracts and resets the pressure plate 14 to the transition position between the horizontal section and the inclined section, the shaft parts in the inverted triangular groove will apply an upward thrust to the bottom of the pressure plate 14 under the reaction force of the elastic member 10. At this time, because one or more second slide bars 29 are located in the horizontal section, and the pressure plate 14 is in contact with the top of the base 3, the pressure plate 14 will not be tilted or flipped under force, so that when each second slide bar 29 correctly enters the corresponding inclined section during the reset process, the pressure plate 14 will be in a horizontal posture and separated from the base 3, thereby ensuring the stability of the cyclic operation of the pressure plate 14.

[0047] like Figure 5 As shown, in this embodiment, the inclined section provided on the second long groove 22 allows the pressure plate 14 to reduce the design width, reduces the obstruction of the pressure plate 14 above the inverted triangular groove when placing shaft parts, and improves the convenience of placing shaft parts.

[0048] like Figure 5 and Figure 7 As shown, in this embodiment, two first long grooves 16 are symmetrically provided on the pressure plate 14, and the shortest distance between the two first long grooves 16 is greater than the width of the movable positioning block 9. A fastener 15 is installed on the pressure rod 17, and the fastener 15 can be a screw structure in the prior art. The fastener 15 passes through the first long groove 16 to fix the pressure rod 17 on the pressure plate 14. The advantage of this arrangement is that the position of the pressure rod 17 can be adjusted according to different laser engraving position requirements to avoid obstruction of the laser engraving position. It should be noted that generally, at least one pressure rod 17 is installed on a first long groove 16, and the two pressure rods 17 need to be pressed on the shaft parts at the same time to ensure that the shaft parts are evenly stressed, avoid warping of the shaft parts, and ensure the processing stability of the shaft parts.

[0049] like Figure 7 As shown, in this embodiment, an anti-slip pad is embedded in the bottom of the pressure rod 17, and the bottom of the anti-slip pad is flush with the bottom of the pressure rod 17. The advantage of this arrangement is that when the pressure rod 17 and the shaft parts produce relative friction, the stability of the rotation of the shaft parts is improved, and the shaft parts are prevented from slipping during rotation, ensuring that the information is correctly laser engraved on the surface of the corresponding curvature of the shaft parts, thereby reducing the probability of producing defective products.

[0050] like Figure 7 As shown, in this embodiment, a groove 30 is provided at the bottom of one side of the pressure plate 14, and the end of the pressure rod 17 close to the pressure plate 14 is adapted to be arranged in the groove 30. The advantage of such an arrangement is that the connection strength between the pressure rod 17 and the pressure plate 14 is improved, and the working stability of the pressure rod 17 is ensured.

[0051] like Figure 3、 Figure 4 and Figure 6 As shown, in this embodiment, a baffle 25 is provided on the top of the movable positioning block 9, and the baffle 25 is used to cover the top of the side of the movable positioning block 9 where the elastic member 10 is installed. A first retreat groove 31 is provided on the top of the base 3, and the baffle 25 can retreat into the first retreat groove 31. The advantage of this arrangement is that when shaft parts are placed in the inverted triangular groove, the shaft parts are prevented from accidentally falling into the gap between the movable positioning block 9 and the through groove 4 where the elastic member 10 is installed, thereby ensuring the normal processing of the shaft parts. The design of the first retreat groove 31 being greater than the thickness of the baffle 25 enables the baffle 25 to completely retreat into the first retreat groove 31 when the pressure plate 14 squeezes the baffle 25, thereby avoiding damage to the baffle 25 or the pressure plate 14 and ensuring the normal use of the positioning fixture 2.

[0052] like Figure 6 As shown, in this embodiment, the shield 25 is arranged to be tilted upward at one end away from the positioning bevel 19. The advantage of this arrangement is that it improves the tolerance for placing shaft parts on the downward positioning structure 5. Even if the shaft parts cannot be effectively placed in the inverted triangular groove formed by multiple positioning bevels 19, they can roll into the inverted triangular groove under the guidance of the shield 25, reducing the difficulty of manual or mechanical placement of shaft parts.

[0053] like Figure 6 As shown, in this embodiment, a number of insertion holes 26 are evenly provided on the positioning inclined surfaces 19 of the two movable positioning blocks 9 at the end, and the two movable positioning blocks 9 at the end are installed with a side positioning structure 8 for positioning the cross-section of shaft parts through the insertion holes 26; the side positioning structure 8 includes two plug blocks 27, the bottom of the plug block 27 is plugged into the insertion hole 26, and the two plug blocks 27 are vertically arranged on the side close to each other, and the top of the plug block 27 is provided with an elastic bar 28, and the two elastic bars 28 are arranged in an eight-shaped shape. Two second retreat grooves 32 are symmetrically provided on the top of the base 3, and the elastic bar 28 can retreat into the second retreat groove 32 under force. The depth of the second retreat groove 32 is greater than the thickness of the elastic bar 28. This arrangement allows the elastic bar 28 to completely retreat into the second retreat groove 32 when squeezed by the pressure plate 14, thereby avoiding damage to the pressure plate 14 or the elastic bar 28.

[0054] The socket 26 can be opened according to the length of the shaft parts that the manufacturer needs to process. When in use, the plug block 27 is inserted into the socket 26 at the preset position. It should be noted that the distance between the two plug blocks 27 is the length of the shaft part to be processed or slightly larger than the length of the shaft part (leaving a margin to facilitate the shaft part to be squeezed and guided from an inclined posture to a horizontal posture). Under the extrusion of the pressure plate 14, the shaft part is quickly positioned to the predetermined position through the guidance of the positioning bevel 19 and the spring bar 28, avoiding large axial displacement during the positioning processing of the shaft part, and ensuring the consistency of the laser engraving information position of the same batch of shaft parts. At the same time, the elastic setting of the spring bar 28 makes it have a larger guiding length and angle in the initial state. When the downward pressure of the pressure plate 14 acts, it can also retreat to the second retreat groove 32 through elastic deformation to avoid being crushed, thereby ensuring the service life of the spring bar 28.

[0055] like Figure 6 As shown, in this embodiment, the bottom inner wall of the socket 26 is tilted downward. The advantage of this arrangement is that when the plug 27 inserted into the socket 26 is squeezed by the shaft parts, it will be subjected to a downward component of force, so that the plug 27 and the socket 26 are tightly plugged in, thereby ensuring the plug-in stability of the plug 27 and the socket 26.

[0056] The technical solution provided by the present invention is that when the device is working, the control component controls the feeding component to grab the shaft parts and put them into the inverted triangular groove. Subsequently, the control component controls the telescopic drive unit to extend, and the telescopic drive unit drives the first connecting frame 13 to move along the radial direction of the turntable 1 to the side away from the axis of the turntable 1 through the second connecting frame 18. Under the guidance of the second guide groove 33 and the inclined section of the second long groove 22, the first connecting frame 13 drives the pressing plate 14 to move obliquely downward along the inclined section through the second slide bar 29 until the pressing plate 14 contacts and squeezes the shaft parts placed in the inverted triangular groove. The shaft parts are limited to the position to be processed as the bottom of the pressing plate 14 fits with the top of the base 3. At this time, the first connecting frame 13 that continues to move drives the pressing plate 14 to move along the horizontal section of the first guide groove 12 in the direction away from the axis of the turntable 1. When the pressing plate 14 is completely moved to one side of the through groove 4, it stops (it can also be stopped when the pressing plate 14 does not block the position to be processed at the top of the shaft parts. The whole process can be controlled manually or automatically by using a visual sensor to detect the position information of the shaft parts and the pressing plate 14). It should be noted that the shaft parts are squeezed downward. When the positioning inclined surface 19 is pressed, the movable positioning block 9 squeezes the elastic member 10. Under the restriction of the second long groove 22 and the plurality of third long grooves 23 and the limiting plate 20 and the plurality of fourth long grooves 24, the first slide bar 21 slides vertically downward along the second long groove 22, so that the plurality of movable positioning blocks 9 move synchronously, so that the inverted triangular grooves are proportionally enlarged. The advantage of such a setting is that shaft components of different diameters within a preset range can be centered, and the highest point position of the side of the positioned shaft components is the same, which avoids the radial deviation of the shaft components in the turntable 1 and reduces Or it avoids the operation of adjusting the height or horizontal position of the laser engraving machine in the laser engraving component 34, reduces the probability of device debugging, and improves the convenience of processing small batches of different types of shaft parts. At the same time, when it is necessary to laser engrave positions with larger arcs or different arcs of shaft parts, the pressure plate 14 can be moved radially along the turntable 1 until it is separated from the shaft parts, and the pressure rod 17 presses down the shaft parts and generates relative friction with the shaft parts and drives the shaft parts to rotate, and the shaft parts can be laser engraved without customizing specific jigs for different shaft parts, thereby reducing the production cost of the enterprise.

[0057] The shaft parts are moved in sequence to the positions of the feeding component, the laser engraving component 34, the code scanning component 35 and the discharging component through the rotation of the turntable 1. That is, when four or more positioning fixtures 2 are provided on the turntable 1, it can be ensured that each workstation is in working condition, thereby realizing efficient processing of the shaft parts.

[0058] When it is necessary to grab the shaft parts that have been laser engraved and scanned, the telescopic drive unit contracts, and the pressure plate 14 can be reset through the second connecting frame 18, the first connecting frame 13 and the second slide rod 29, and the subsequent cycle operation is carried out through the discharging component and the feeding component.

[0059] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A MIM parts laser engraving and scanning device, characterized in that: A control component and a feeding component, a conveying component, a laser engraving component (34), a code scanning component (35), and a discharging component controlled by the control component; The conveying component comprises a turntable (1), a motor for driving the turntable (1) to rotate is provided below the turntable (1), two or more positioning jigs (2) are evenly arranged in a circle on the turntable (1), the positioning jigs (2) comprise a base (3) mounted on the turntable (1) and a driving structure (7), a through slot (4) is provided on the base (3), the through slot (4) is a rectangular slot, a lower positioning structure (5) is installed in the through slot (4), and an upper positioning structure (6) is installed on the base (3); The lower positioning structure (5) is adapted to shaft parts of different diameters by being provided with an inverted triangular groove that is proportionally enlarged under the extrusion of the shaft part, and the centerline position of the inverted triangular groove remains unchanged when the inverted triangular groove is proportionally enlarged; A plurality of pressure rods (17) are provided on one side of the upper positioning structure (6) close to the axis of the turntable (1); When the upper positioning structure (6) is driven by the lower positioning structure (5) to fit with the top of the base (3), the highest point of the side surface of the shaft part in the inverted triangle groove is squeezed by the upper positioning structure (6) to be flush with the top of the base (3), and then the driving structure (7) drives the upper positioning structure (6) to slide radially along the turntable (1) against the top of the base (3) until downward pressure is applied to the shaft part through the pressure rod (17), and the laser engraving component (34) and the code scanning component (35) are used to perform laser engraving and code scanning on the shaft part in turn above the unobstructed position of the shaft part; The inner walls of the through groove (4) on opposite sides are provided with second long grooves (22), the same first slide bar (21) is slidably connected in the two second long grooves (22), and the same limit plate (20) is installed between the two inner walls provided with the second long grooves (22), and the lengths of the limit plate (20) and the first slide bar (21) are parallel to the axis of the shaft part to be processed; The lower positioning structure (5) includes a plurality of movable positioning blocks (9) arranged in a centrally symmetrical manner in the through groove (4), the top of the movable positioning block (9) is lower than the top of the base (3), and there are three or more movable positioning blocks (9). The top of the movable positioning block (9) is provided with a positioning inclined surface (19) extending obliquely downward to the side of the movable positioning block (9), and the positioning inclined surfaces (19) on the plurality of movable positioning blocks (9) together form an inverted triangular groove with an open top. An elastic member (10) connected to the inner wall of the through groove (4) is installed on the side of the movable positioning block (9) away from the inverted triangular groove. A third long groove (23) and a fourth long groove (24) penetrating the movable positioning block (9) are provided on opposite sides of the movable positioning block (9). The third long slot (23) is slidably connected to the first slide bar (21), the fourth long slot (24) is slidably connected to the limit plate (20), the movable positioning block (9) slides along the radial direction of the turntable (1) through the sliding cooperation of the limit plate (20) and the fourth long slot (24), the third long slot (23) is inclined, and when the shaft parts press the positioning inclined surface (19) downward, the movable positioning block (9) presses the elastic member (10), and under the restriction of the second long slot (22) and the plurality of third long slots (23) and the limit plate (20) and the plurality of fourth long slots (24), the first slide bar (21) slides vertically downward along the second long slot (22), so that the plurality of movable positioning blocks (9) move synchronously, so that the inverted triangular slots are proportionally enlarged.

2. The MIM parts laser engraving and scanning equipment according to claim 1 is characterized in that: The driving structure (7) includes two side brackets (11) mounted on the top of the base (3), the two side brackets (11) are respectively located on both sides of the through slot (4), and a first guide slot (12) penetrating the side bracket (11) is provided on the side bracket (11). The driving structure (7) also includes a telescopic driving unit mounted on the turntable (1), the telescopic end of the telescopic driving unit is connected to a second connecting frame (18), the second connecting frame (18) is U-shaped and semi-enclosed outside the two side brackets (11), and a first connecting frame (13) is installed at one end of the second connecting frame (18) away from the telescopic driving unit, the first connecting frame (13) is in an inverted U-shape and semi-enclosed outside the upper positioning structure (6) and the side bracket (11), and a plurality of second guide slots (33) are respectively provided on the two side walls of the first connecting frame (13), the plurality of second guide slots (33) are arranged in a vertical direction, and the plurality of second guide slots (33) are parallel to each other; The first guide groove (12) comprises a horizontal section and a plurality of inclined sections connected to the horizontal section, the plurality of inclined sections are parallel to each other, and the number of the inclined sections is the same as the number of the second guide grooves (33); The upper positioning structure (6) includes at least two second slide bars (29), the two ends of the second slide bars (29) respectively pass through the corresponding inclined sections on the two side brackets (11), and the same pressure plate (14) is installed on the plurality of second slide bars (29). The bottom of the pressure plate (14) is arranged in a rectangular shape, and the bottom of the pressure plate (14) is arranged parallel to the top of the base (3). The length of the pressure plate (14) is greater than the length of the through slot (4), and the pressure rod (17) is installed on the side of the pressure plate (14) close to the axis of the turntable (1).

3. The MIM parts laser engraving and code scanning equipment according to claim 2 is characterized in that: Two first long slots (16) are symmetrically formed on the pressure plate (14), and the shortest distance between the two first long slots (16) is greater than the width of the movable positioning block (9). A fastener (15) is installed on the pressure rod (17), and the fastener (15) passes through the first long slots (16) to fix the pressure rod (17) on the pressure plate (14).

4. The MIM parts laser engraving and code scanning equipment according to claim 1, characterized in that: The bottom of the pressure rod (17) is embedded with an anti-skid pad, and the bottom of the anti-skid pad is flush with the bottom of the pressure rod (17).

5. The MIM parts laser engraving and code scanning equipment according to claim 2, characterized in that: A groove (30) is provided at the bottom of one side of the pressing plate (14), and one end of the pressing rod (17) close to the pressing plate (14) is adapted to fit the groove (30).

6. The MIM parts laser engraving and code scanning equipment according to claim 1, characterized in that: A shield (25) is provided on the top of the movable positioning block (9), and the shield (25) is used to cover the top of the movable positioning block (9) on the side where the elastic member (10) is installed. A first retreat groove (31) is provided on the top of the base (3), and the shield (25) can retreat into the first retreat groove (31). The depth of the first retreat groove (31) is greater than the thickness of the shield (25).

7. The MIM parts laser engraving and code scanning equipment according to claim 6, characterized in that: One end of the shield (25) away from the positioning inclined surface (19) is arranged to be inclined upward.

8. The MIM parts laser engraving and code scanning equipment according to claim 1 is characterized in that: A plurality of insertion holes (26) are evenly provided on the positioning inclined surfaces (19) of the two movable positioning blocks (9) at the end, and the two movable positioning blocks (9) at the end are installed with side positioning structures (8) for positioning the cross section of shaft parts through the insertion holes (26); The side positioning structure (8) includes two plug blocks (27), the bottom of the plug blocks (27) is plugged into the socket (26), the two plug blocks (27) are arranged vertically on the side close to each other, and the top of the plug blocks (27) is provided with elastic bars (28), and the two elastic bars (28) are arranged in an eight-shaped shape. Two second retreat grooves (32) are symmetrically opened on the top of the base (3), and the elastic bars (28) can retreat into the second retreat grooves (32) when subjected to force, and the depth of the second retreat grooves (32) is greater than the thickness of the elastic bars (28).

9. The MIM parts laser engraving and code scanning equipment according to claim 8, characterized in that: The bottom inner wall of the socket (26) is arranged to be inclined downward.

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