A medical parts stamping device

Abstract

The present invention belongs to the technical field of stamping equipment, and in particular relates to a medical parts stamping device, comprising a frame, an upper pressure head and a mounting seat, a movable frame vertically slidingly assembled on the frame, a fan and a movable nozzle being provided on the movable frame, a stamping cavity being provided in the mounting seat, and a punching hole being provided on the top of the stamping cavity; a avoidance hole for avoiding the upper pressure head being provided on the movable frame, the movable nozzle being horizontally slidably assembled on the movable frame to enter and exit the avoidance hole, an air inlet and an air outlet being provided on the movable nozzle, when the air inlet is connected to the high-pressure side of the fan, the air outlet is located in the avoidance hole in the vertical direction and blows air vertically downward; a ventilation duct three connected to the stamping cavity is provided on the mounting seat, when the ventilation duct three is connected to the low-pressure side of the fan, the parts to be stamped are adsorbed on the mounting seat. The present invention can solve the technical problem that when the parts to be stamped are not much different from the punching hole, the cleaning method of air outlet on both sides easily blows the parts to be stamped away from the stamping position, thereby affecting the stamping.

Description

Technical Field

[0001] The present invention belongs to the technical field of stamping equipment, and in particular relates to a stamping device for medical parts. Background Art

[0002] Medical devices come in a wide variety of styles, including medical imaging equipment, surgical instruments, therapeutic equipment, rehabilitation equipment, diagnostic reagents, and disinfection equipment. Medical device stamping involves forming the metal materials needed for medical devices through a stamping process. A sheet of metal is placed on a punch press and pressed using a stamping die to achieve the desired shape and size. Before stamping, the surface of the part to be stamped must be cleaned to prevent impurities from damaging the die, improve the surface quality of the workpiece, and avoid indentations and scratches.

[0003] The Chinese invention patent document with publication number CN116689589B discloses a stamping equipment for medical device processing. The output end of the cylinder drives the punch head to move downward through the top plate. At the same time, the first airbag drives the fixed plate to move downward. After contacting the top of the workpiece, it continues to move downward. The fixed plate squeezes the first airbag, and the air outlet end of the first airbag supplies air to the boosting chamber. The gas in the boosting chamber will be discharged into the fixed chamber through the exhaust hole, so that the nozzle can blow air to the top of the workpiece and clean the position to be stamped on the top of the workpiece. In the above patent, the parts to be stamped can be blown with air before stamping to remove impurities on the surface of the parts to be stamped. However, the air outlets are on both sides of the part to be stamped, and there is an angle between the air outlet direction and the top surface of the part to be stamped. There needs to be a certain horizontal distance between the air outlet and the upper pressure head so that the air blown out of the air outlet can cover the part to be stamped. The larger the punching hole, the greater the distance. When the part to be stamped is thin and the size is not much different from the punching hole, the fixing plate cannot contact the part to be stamped and cannot fix the part to be stamped. The way of air outlet on both sides can easily blow the part to be stamped away from the stamping position, affecting the stamping. Summary of the Invention

[0004] The present invention provides a medical component stamping device to solve the technical problem that when the difference between the punched part and the punched hole is not much, the cleaning method of air outlet on both sides easily blows the punched part away from the stamping position, thereby affecting the stamping.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions:

[0006] A medical component stamping device includes a frame, an upper pressing head, and a mounting base for placing a part to be stamped. A movable frame is vertically slidably assembled on the frame, and a clearance hole is provided on the movable frame for avoiding the upper pressing head. A fan and a movable nozzle are provided on the movable frame, and an air inlet and an air outlet are provided on the movable frame. The movable nozzle is horizontally slidably assembled on the movable frame to enter and exit the clearance hole. When the air inlet is connected to the high-pressure side of the fan, the air outlet is vertically located within the clearance hole and blows air vertically downward.

[0007] A stamping cavity is provided in the mounting seat, and a punching hole is provided on the top of the stamping cavity. The part to be stamped is placed on the mounting seat and located above the punching hole; a ventilation duct three connected to the stamping cavity is provided on the mounting seat. When the ventilation duct three is connected to the low-pressure side of the fan, the mobile nozzle slides to leave the avoidance hole, and the part to be stamped is adsorbed on the mounting seat.

[0008] The workpiece to be stamped is placed on the mounting seat, the mobile nozzle enters the avoidance hole and is connected to the high-pressure side of the fan, and the air outlet blows air to the top surface of the workpiece to be stamped to clean the surface of the workpiece to be stamped. Since the air outlet is located directly above the workpiece to be stamped and the air outlet direction is perpendicular to the workpiece to be stamped, it is not easy to blow the workpiece to be stamped away from the predetermined position; during stamping, the mobile nozzle leaves the avoidance hole to allow the upper pressure head to contact the workpiece to be stamped. At this time, the low-pressure side of the fan extracts the gas in the stamping chamber and adsorbs the workpiece to be stamped on the mounting seat. There is no need to mechanically clamp the workpiece to be stamped, and no clamping marks or other forms of physical damage will be left on the surface of the workpiece to be stamped; the pressure difference on both sides of the fan is used to clean the surface of the workpiece to be stamped and fix the workpiece to be stamped, and the device has a high degree of integration.

[0009] Furthermore, a second ventilation duct is provided on the movable frame, one end of the second ventilation duct is connected to the avoidance hole, and the other end is connected to the low-pressure side of the fan. The second ventilation duct is used to extract the gas around the upper pressure head to cool the upper pressure head.

[0010] After the stamping of the part to be stamped is completed, it is necessary to replace it with a new one. At this time, the upper pressure head moves up to the avoidance hole. During the stamping process, the upper pressure head acts on the part to be stamped at a higher pressure and speed. The friction between the upper pressure head and the part to be stamped generates heat, causing the temperature of the upper pressure head to rise. The fan draws the air near the upper pressure head to the low-pressure side to cool the upper pressure head.

[0011] Furthermore, the other end of ventilation duct two is fixedly connected to the side wall of ventilation duct four, and a connecting hole for connecting to ventilation duct two is provided on the side wall of ventilation duct four. One end of ventilation duct four is connected to the low-pressure side of the fan, and a control component for controlling the connection relationship between ventilation duct four and ventilation duct three and ventilation duct two is provided between the other end of ventilation duct four and ventilation duct three. When ventilation duct four is connected to ventilation duct three, the negative pressure side of the fan adsorbs the parts to be stamped on the mounting seat; when ventilation duct four is connected to ventilation duct two, the negative pressure side of the fan is used to cool the upper pressure head.

[0012] Furthermore, the control component includes a movable tube 1 and a movable tube 2 extending up and down, the movable tube 1 is open at the top and closed at the bottom, the upper part of the movable tube 1 is assembled in the ventilation duct 4 and fits against the inner wall of the ventilation duct 4, and a cleaning hole 2 is provided on one side wall of the movable tube; the movable tube 2 is passed through from top to bottom, the movable tube 2 is slidably assembled in the movable tube 1 up and down and fits against the inner wall of the movable tube 1, when the movable tube 1 is located above the ventilation duct 3, the movable tube 2 closes the cleaning hole 2, the ventilation duct 4 is connected to the ventilation duct 2 through the connecting hole, and the negative pressure side of the fan is used to cool the upper pressure head; when the movable tube 1 is installed in the ventilation duct 3 and the movable tube 2 moves up a predetermined distance relative to the movable tube 1, the ventilation duct 4 is connected to the ventilation duct 3 through the cleaning hole 2, and the negative pressure side of the fan adsorbs the parts to be stamped on the mounting seat.

[0013] Furthermore, an elastic member four extending up and down is provided between the movable tube one and the movable tube two. The elastic member four has elastic potential energy that causes the movable tube two to close the cleaning hole two. A flange is fixed on the outer peripheral surface of the movable tube two, and the flange is slidably assembled in the cleaning hole two up and down. The flange is used to contact the top surface of the ventilation duct three to enable relative movement between the movable tube one and the movable tube two.

[0014] When the movable tube one is located above the ventilation duct three, the ventilation duct three is not connected to the negative pressure side of the fan. At this time, the workpiece to be stamped is not adsorbed on the mounting seat, which makes it convenient to remove the stamped workpiece and install a new workpiece to be stamped. In this gap, the fan cools the upper pressure head to avoid the fan idling and improve energy utilization. By moving the movable frame downward, the relative position relationship between the movable tube one, the movable tube two and the ventilation duct three can be adjusted to achieve the connection between the ventilation duct four and the ventilation duct three, so that the workpiece to be stamped can be adsorbed on the mounting seat. There is no need to set up extra electronic equipment, which reduces production costs. The direction and operating status of the fan do not need to be adjusted, and the device has strong stability in use.

[0015] Furthermore, the movable tube 1 is slidably assembled in the ventilation duct 4 up and down, a cleaning hole 1 is provided on one side wall of the movable tube, and an elastic member 3 extending up and down is provided between the movable tube 1 and the ventilation duct 4, and the elastic member 3 has elastic potential energy that makes the cleaning hole 1 and the connecting hole correspond to each other in the horizontal direction; when the ventilation duct 4 is connected with the ventilation duct 3 through the cleaning hole 2, the movable tube 1, the movable tube 2 and the ventilation duct 3 are relatively fixed, and the ventilation duct 4 moves downward relative to the movable tube so that the movable tube 1 closes the connecting hole.

[0016] When the fan adsorbs the workpiece to be stamped on the mounting seat through ventilation duct four and ventilation duct three, the movable tube one closes the connecting hole, and the adsorption force of the fan on the stamping cavity will not be divided by ventilation duct two, thereby ensuring that the adsorption force of the stamping cavity on the workpiece to be stamped is large enough and improving the stability of the stamping process.

[0017] Furthermore, the movable frame is provided with cavity 2 and cavity 4 which are isolated from each other, the high-pressure side of the fan is located in cavity 2, and the low-pressure side of the fan is located in cavity 4. A ventilation duct 1 is provided between cavity 2 and the movable nozzle, and one end of the ventilation duct 1 is connected to cavity 2, and the other end face is fitted with the outer peripheral surface of the movable nozzle, and the end face of the other end of the ventilation duct 1 is located on the moving path of the air inlet. When the air inlet is connected to the other end of the ventilation duct 1, the air outlet is located in the avoidance hole in the vertical direction and blows air vertically downward; when the air inlet is staggered with the other end of the ventilation duct 1, the top surface of the movable nozzle closes the other end of the ventilation duct 1, and a pressure relief valve is installed on the movable frame. When the pressure in cavity 2 reaches a predetermined value, the pressure relief valve opens to reduce the pressure in cavity 2.

[0018] The setting of the pressure relief valve can effectively discharge the wind blown by the fan to protect the fan; at the same time, the fan can be continuously turned on without frequent switching on and off, which extends the service life of the fan and improves the operating stability of the device.

[0019] Furthermore, an air intake valve is installed on the movable frame. When the pressure in the cavity four decreases to a predetermined value, the air intake valve opens to increase the pressure in the cavity four.

[0020] The suction valve can prevent the pressure in the stamping cavity from being too low, thereby preventing damage to thinner parts to be stamped.

[0021] Furthermore, a plurality of limiting rods are assembled on the mounting seat. The limiting rods are located at the periphery of the workpiece to be punched and contact the side surfaces of the workpiece to be punched to fix the workpiece to be punched in the horizontal direction.

[0022] The limiting rod fits with the side of the workpiece to be stamped, making it easy to position the workpiece.

[0023] Furthermore, a moving block is assembled and slidably mounted in the stamping cavity, and an elastic member is provided between the moving block and the stamping cavity. The elastic member has elastic potential energy for driving the moving block to move upward so that the top surface of the moving block is flush with the top surface of the punching hole. The moving block is provided with a plurality of through holes that pass through the upper and lower parts and are connected to the stamping cavity, and the top surface of the through hole is in contact with the bottom surface of the part to be stamped.

[0024] There are multiple through holes, so that the moving block can perform multi-point adsorption on the stamping part, thereby improving the adsorption stability.

[0025] The beneficial effects of the present invention are:

[0026] The movable nozzle blows air vertically to the workpiece to be stamped to clean the surface of the workpiece. Under the limit of the limit rod, the workpiece to be stamped will not move during the blowing and cleaning process, and the stamping workpiece is accurately positioned. After the cleaning is completed, the movable nozzle moves away from above the workpiece to be stamped without affecting the stamping process. Then, the vertical distance between the movable frame and the mounting seat is controlled to achieve the connection between the ventilation duct four and the ventilation duct three, and the negative pressure side of the fan adsorbs and fixes the workpiece to be stamped to ensure the stability of the workpiece to be stamped during the stamping process. After the stamping is completed, the distance between the movable frame and the mounting seat is changed to disconnect the ventilation duct four and the ventilation duct three. At this time, the workpiece is not adsorbed, the stamped workpiece can be removed, and a new workpiece to be stamped can be installed at the same time. During the process of replacing the workpiece, the ventilation duct four and the ventilation duct two are connected, and the fan draws out the air around the upper pressure head to cool the upper pressure head. The fan operates normally throughout the whole process without frequent start and stop. The fan has a long service life, and the fan can simultaneously realize cooling, cleaning and adsorption functions, with a simple structure and high device integration. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention;

[0028] Figure 2 for Figure 1 Schematic diagram of the split structure;

[0029] Figure 3 It is a structural diagram of the lower module;

[0030] Figure 4 This is a schematic diagram of the assembly structure of the fan, mobile nozzle and ventilation duct one;

[0031] Figure 5 This is a schematic diagram of the split structure of the mobile nozzle and ventilation duct 1;

[0032] Figure 6 This is a schematic diagram of the installation structure of the pressure relief valve and the air suction valve;

[0033] Figure 7 Schematic diagram of the internal structure of ventilation duct 4;

[0034] Figure 8 Schematic diagram of the structure of the mobile tube 1 and the mobile tube 2;

[0035] Figure 9 This is a structural diagram in which the connecting hole and the cleaning hole 1 are staggered, and the ventilation duct 4 is connected to the ventilation duct 3.

[0036] Description of reference numerals:

[0037] 1. Frame; 11. Top plate; 12. Base; 13. Vertical rod;

[0038] 2. Stamping module; 21. Linear actuator 1; 22. Upper punch; 23. Mounting seat; 24. Moving block; 25. Lower die; 26. Stamping cavity; 261. Punching hole; 262. Cavity 1; 27. Guide rod; 28. Through hole 1; 29. ​​Elastic member 1;

[0039] 3. Cleaning module; 31. Fan; 32. Ventilation duct 1; 33. Mobile nozzle; 34. Mobile frame; 35. Linear actuator 3; 36. Cavity 2; 37. Avoidance hole; 38. Air inlet hole; 39. Air outlet hole; 310. Cavity 3; 311. Linear actuator 2; 312. Pressure relief valve; 313. Raised edge;

[0040] 4. Cooling module; 41. Cavity 4; 42. Ventilation duct 2; 43. Ventilation duct 4; 44. Connection hole;

[0041] 5. Positioning module; 51. Limit rod; 52. Ventilation duct three; 53. Elastic part two; 54. Moving tube one; 55. Moving tube two; 56. Clearance hole one; 57. Elastic part three; 58. Elastic part four; 59. Clearance hole two; 510. Flange; 511. Intake valve. DETAILED DESCRIPTION

[0042] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0043] A medical parts stamping device, such as Figure 1 and Figure 2 As shown, it includes a frame 1, on which a stamping module 2, a cleaning module 3, a cooling module 4 and a positioning module 5 are provided. The stamping module 2 includes an upper pressure head 22. The stamping module 2 is used to stamp the workpiece to be stamped into a predetermined shape. The cleaning module 3 is used to blow air to the top surface of the workpiece to be stamped to clean the part to be stamped. The cooling module 4 is used to cool the upper pressure head 22. The positioning module 5 is used to limit the position of the workpiece to be stamped.

[0044] The frame 1 includes a top plate 11 , a base 12 , and a vertical rod 13 vertically fixedly assembled between the top plate 11 and the base 12 .

[0045] The stamping module 2 includes a linear actuator 21, an upper pressing head 22 and a lower die set. The linear actuator 21 is an electric push rod or a hydraulic rod. The fixed end of the linear actuator 21 is vertically fixedly assembled on the top plate 11. The upper pressing head 22 is fixedly assembled on the output end of the linear actuator 21. The linear actuator 21 is used to drive the upper pressing head 22 to move up and down; the lower die set is assembled on the base 12. Figure 3 As shown, the lower die assembly includes a mounting base 23, a moving block 24 and a lower die 25. The mounting base 23 is fixedly assembled on the base 12. Figure 2 , a stamping cavity 26 is provided in the mounting seat 23, and the stamping cavity 26 includes a punching hole 261 and a cavity 262. The cross-sectional area of ​​the punching hole 261 is smaller than the cross-sectional area of ​​the cavity 262. The cavity 262 is located below the punching hole 261 and is connected to the punching hole 261. The top surface of the punching hole 261 is flush with the top surface of the mounting seat 23. A guide rod 27 extending up and down is fixedly assembled in the cavity 262. The moving block 24 includes an upper part and a lower part. The upper part and the lower part are both cylindrical structures extending up and down. The upper part and the lower part are coaxially arranged. The diameter of the upper part is smaller than that of the lower part. A through hole 28 is provided on the moving block 24, which passes through the upper and lower parts. The through hole 28 is connected to the cavity 262; the moving block 24 is slidably assembled on the guide rod 27 up and down, and the guide rod 27 extends up and down and is fixedly assembled Between the inner top surface and the inner bottom surface of cavity 262, the lower part is mounted on the guide rod 27, and the guide rod 27 is mounted on an elastic part 29, which is a compression spring. The elastic part 29 is located between the bottom surface of the moving block 24 and the inner bottom surface of cavity 262. The elastic part 29 has elastic potential energy that makes the lower top surface press against the inner top surface of cavity 262. When the lower part fits against the inner top surface of cavity 262, the lower outer peripheral surface fits against the inner wall of cavity 262, and the upper outer peripheral surface fits against the inner wall of punching hole 261. The top surface of the moving block 24 is flush with the top surface of the mounting seat 23; the lower mold 25 is fixedly assembled on the bottom surface of cavity 262, and the moving block 24 is provided with a through hole 2 that matches the lower mold 25. The top surface of the lower mold 25 is flush with the top surface of the mounting seat 23.

[0046] The operation mode of the stamping module 2 is as follows: the workpiece to be stamped is placed above the punching hole 261 and is in contact with the top surface of the mounting seat 23, the linear actuator 21 extends, driving the upper punch 22 to move down to contact the workpiece to be stamped, and under the joint action of the upper punch 22 and the lower die 25, the workpiece to be stamped is stamped into a predetermined shape; then the linear actuator 21 drives the upper punch 22 to move up to above the mounting seat 23, and the elastic member 29 drives the moving block 24 to move up until the top surface of the moving block 24 is flush with the top surface of the mounting seat 23, and the workpiece to be stamped is removed.

[0047] The cleaning module 3 includes a fan 31, a ventilation duct 32 and a mobile nozzle 33. Figure 4As shown, the fan 31 is fixedly assembled in the mobile frame 34, and the mobile frame 34 is assembled on the frame 1 by sliding up and down through the linear actuator 3 35. The linear actuator 35 is an electric push rod or a hydraulic rod. The fixed end of the linear actuator 35 is vertically fixedly assembled on the top plate 11, and the mobile frame 34 is fixedly connected to the output end of the linear actuator 35; a cavity 2 36 is provided in the mobile frame 34, and the air outlet end of the fan 31 is located in the cavity 2 36. The cavity 2 36 is the high-pressure side of the fan 31. The mobile frame 34 is provided with an avoidance hole 37 that passes through the upper pressure head 22. The ventilation duct 1 32 is fixedly assembled on the mobile frame 34. On the top, one end of the ventilation duct 32 is connected to the cavity 2 36; the movable nozzle 33 is a rectangular shell structure, and an air inlet 38 extending up and down is provided on the top surface of the movable nozzle 33, and a plurality of air outlet holes 39 extending up and down are provided on the bottom surface of the movable nozzle 33. The top surface of the movable nozzle 33 is horizontally fitted with the other end surface of the ventilation duct 1 32; a cavity 310 connected to the avoidance hole 37 is provided in the movable frame 34, and the movable nozzle 33 is horizontally slidably assembled on the inner bottom surface of the cavity 310 through the linear actuator 2 311 to enter and exit the avoidance hole 37. The linear actuator 2 311 includes a guide rail and a linear motor assembled on the guide rail, such as Figure 5 As shown, flanges 313 are fixedly assembled on both sides of the movable nozzle 33, the flanges 313 are fixedly assembled on the linear motor, the guide rails are fixedly assembled on the inner bottom surface of the cavity three 310, and the end face of the other end of the ventilation duct one 32 is located on the moving path of the air inlet hole 38. When the other end of the ventilation duct one 32 is connected to the air inlet hole 38, the air outlet hole 39 is located in the avoidance hole 37 in the vertical direction.

[0048] The operation mode of the cleaning module 3 is as follows: the fan 31 is started, and the linear actuator 2 311 drives the mobile nozzle 33 to move into the avoidance hole 37 until the ventilation duct 1 32 is connected to the mobile nozzle 33 through the air inlet 38. At this time, the air outlet 39 is located in the avoidance hole 37 in the vertical direction. At the same time, the blowing range of the air outlet 39 in the vertical direction does not exceed the part to be stamped. The air flow is ejected downward through the air outlet 39 to clean the surface of the part to be stamped placed below the avoidance hole 37. When stamping is required, the linear actuator 2 311 drives the mobile nozzle 33 to move away from the avoidance hole 37, and the air inlet 38 is staggered with the other end of the ventilation duct 1 32. The other end of the ventilation duct 1 32 is closed by the top surface of the mobile nozzle 33, and the air outlet 39 is closed by the bottom surface of the cavity 310. In order to prevent the pressure in the ventilation duct 1 32 and the cavity 2 36 from being too high, causing damage to the device, such as Figure 6 As shown, the movable frame 34 is equipped with a pressure relief valve 312. When the pressure inside the ventilation duct 1 32 and the cavity 2 36 reaches a predetermined value, the pressure relief valve 312 opens to reduce the pressure inside the ventilation duct 1 32 and the cavity 2 36.

[0049] The movable frame 34 is provided with a cavity 41, which is not connected to the cavity 2 36. The air inlet of the fan 31 is located in the cavity 41, which is the low-pressure side of the fan 31. The cooling module 4 includes a ventilation duct 2 42 and a ventilation duct 4 43. There are four ventilation ducts 42, which are evenly fixed and assembled on the movable frame 34 around the axis of the avoidance hole 37 and are connected to the avoidance hole 37. Figure 7 As shown, ventilation duct 43 is a cylindrical structure that extends from top to bottom. It is fixedly mounted on the movable frame 34 and is fixedly connected to ventilation duct 2 42. A connecting hole 44 is defined on the sidewall of ventilation duct 43, connecting ventilation duct 43 and ventilation duct 2 42. The top end of ventilation duct 43 is located within cavity 41, while the bottom end is located outside cavity 41. When the bottom opening of ventilation duct 43 is closed, fan 31 operates, and the pressure within cavity 41 decreases below atmospheric pressure. Gas within escape hole 37 flows along ventilation duct 2 42 and ventilation duct 4 43 into cavity 41. In other words, fan 31 draws away gas near upper pressure head 22, thereby cooling it.

[0050] The positioning module 5 includes a limit rod 51, a ventilation duct three 52, and a control component for controlling the communication between the ventilation duct four 43 and the ventilation duct three 52. The limit rod 51 is assembled on the mounting seat 23 by sliding up and down. Figure 2 and Figure 3 The mounting seat 23 is provided with a groove adapted to the limiting rod 51, and a second elastic member 53 extending up and down is provided in the groove. The second elastic member 53 is a compression spring, and the two ends of the second elastic member 53 are respectively fixedly connected to the bottom surface of the limiting rod 51 and the bottom surface of the groove. When the limiting rod 51 is not subjected to other external forces, the top of the limiting rod 51 protrudes from the top surface of the mounting seat 23. When the limiting rod 51 is subjected to pressure, the top surface of the limiting rod 51 can move down to be flush with the top surface of the mounting seat 23.

[0051] The ventilation duct three 52 is connected to the stamping cavity 26. The ventilation duct three 52 includes a vertical pipe and a horizontal pipe that are perpendicular to each other and connected. The ventilation duct three 52 is fixedly assembled on the mounting seat 23. The end of the horizontal pipe is connected to the stamping cavity 26, and the end of the vertical pipe is located above the mounting seat 23 and is connected to the atmosphere.

[0052] The control assembly includes a moving tube 1 54 slidably assembled in the ventilation duct 4 43 and a moving tube 2 55 slidably assembled in the moving tube 1 54. Figure 8As shown, the movable tube 1 54 is a cylindrical structure with a closed bottom and an open top. A cleaning hole 1 56 corresponding to the connecting hole 44 is provided on the side wall of the movable tube 1 54. The top of the movable tube 1 54 is installed in the ventilation duct 4 43 and fits with the inner wall of the ventilation duct 4 43. An elastic member 3 57 is provided between the movable tube 1 54 and the ventilation duct 4 43. The elastic member 3 57 is a compression spring with an upward and downward expansion direction. A mounting ring 1 is fixedly assembled on the inner wall of the ventilation duct 4 43. The two ends of the elastic member 3 57 are respectively fixedly connected to the top surface of the movable tube 1 54 and the mounting ring 1. When the movable tube 1 54 is not subjected to other external forces, the cleaning hole 1 56 and the connecting hole 44 are closed. They correspond to and are connected with each other in the horizontal direction; the moving tube 2 55 is a cylindrical structure that passes through from top to bottom. The moving tube 2 55 is installed in the moving tube 1 54 and fits against the inner wall of the moving tube 1 54. An elastic part 4 58 is provided between the moving tube 2 55 and the moving tube 1 54. The elastic part 4 58 is a compression spring. The elastic coefficient of the elastic part 4 58 is smaller than that of the elastic part 3 57. The telescopic direction is the up and down direction. The mounting ring 2 is fixedly assembled on the inner wall of the moving tube 1 54. The two ends of the elastic part 4 58 are respectively fixedly connected to the top surface of the moving tube 2 55 and the mounting ring 2. When the moving tube 2 55 is not subjected to other external forces, the bottom end surface of the moving tube 2 55 fits against the inner bottom surface of the moving tube 1 54. A second cleaning hole 59 is provided on the side wall of the movable tube 1 54. The second cleaning hole 59 is located below the first cleaning hole 56 and below the movable frame 34. When the bottom end surface of the second movable tube 55 is in contact with the inner bottom surface of the movable tube 1 54, the second movable tube 55 closes the second cleaning hole 59. A flange 510 is fixed on the side wall of the movable tube 2 55, and the flange 510 slides up and down in the second cleaning hole 59.

[0053] The operation mode of the positioning module 5 is as follows: the workpiece to be stamped is placed between the limiting rods 51, and the outer peripheral surface of the workpiece to be stamped is fitted with the limiting rods 51 to position the workpiece to be stamped; when the movable tube 1 54 and the movable tube 2 55 are not subjected to external force, the cleaning hole 1 56 is connected with the connecting hole 44, and the movable tube 2 55 closes the cleaning hole 2 59; the linear actuator 35 drives the movable frame 34 to move downward, and the bottom end of the movable tube 1 54 vertically enters the vertical tube of the ventilation duct 3 52 and fits with the inner wall of the ventilation duct 3 52, and the flange 510 contacts the top surface of the ventilation duct 3 52. Due to the elastic member 4 58 The elastic coefficient is less than that of the elastic member 3 57. When the movable frame 34 continues to move downward, the movable tube 2 55 remains stationary in the vertical direction, the elastic member 4 58 is compressed, and the movable tube 1 54 moves downward until it contacts the inner bottom surface of the vertical tube of the ventilation duct 3 52. At this time, a distance is generated between the bottom end surface of the movable tube 2 55 and the inner bottom surface of the movable tube 1 54. The movable tube 2 55 is connected to the ventilation duct 3 52 through the clearing hole 2 59. The movable frame 34 continues to move downward. The movable tube 1 54, the movable tube 2 55, and the ventilation duct 3 52 remain stationary in the vertical direction. The elastic member 3 57 is compressed, and the ventilation duct 4 43 moves downward. Figure 9As shown, the connecting hole 44 and the clearing hole 1 56 are staggered in the horizontal direction, the movable tube 1 54 closes the connecting hole 44, the cavity 41 is connected to the cavity 1 262 through the ventilation duct 4 43 and the ventilation duct 3 52, the fan 31 extracts the gas from the cavity 1 262 and the through hole 1 28, and the stamping part is adsorbed on the movable block 24.

[0054] In order to prevent the pressure in the cavity 41 and the cavity 1 262 from being too low, thereby causing damage to the stamped parts, refer to Figure 6 The movable frame 34 is equipped with an air intake valve 511. When the pressure in the cavity 41 decreases to a predetermined value, the air intake valve 511 opens to increase the pressure in the cavity 41 and the cavity 1 262.

[0055] The use of the present invention is as follows:

[0056] ① Adjust linear actuator 1 21 and linear actuator 3 35 to Figure 1 In the middle state, the movable frame 34 and the upper pressure head 22 are farthest from the mounting seat 23. The workpiece to be stamped is placed between the limit rods 51. The linear actuator 2 311 is started. The movable nozzle 33 moves into the avoidance hole 37. The air outlet 39 moves vertically into the avoidance hole 37 and is located directly above the workpiece to be stamped. The air inlet 38 is connected to the ventilation duct 1 32. The fan 31 blows air vertically toward the workpiece to be stamped through the air outlet 39 to clean the surface of the workpiece to be stamped.

[0057] ② Adjust the linear actuator 35, move the movable frame 34 downward, and move the air outlet 39 closer to the workpiece to be stamped. Continue to blow air to the surface of the workpiece to be stamped. Since the airflow is perpendicular to the workpiece to be stamped, the workpiece to be stamped is in contact with the top surface of the movable block 24 under the limitation of the airflow and the limiting rod 51, and will not be blown up by the airflow, ensuring a better cleaning effect.

[0058] ③ The linear actuator 35 drives the movable frame 34 to continue to move downward, the flange 510 is in contact with the top surface of the ventilation duct 3 52, the movable tube 2 55 is stationary, and the movable tube 1 54 and the movable frame 34 move downward synchronously until the bottom surface of the movable tube 1 54 is in contact with the inner bottom surface of the vertical tube of the ventilation duct 3 52, and the movable tube 2 55 no longer closes the cleaning hole 2 59; then the movable frame 34 continues to move downward, the movable tube 1 54 and the movable tube 2 55, and the ventilation duct 3 52 are stationary, the ventilation duct 4 43 moves downward, and the movable tube 1 54 closes the connecting hole 44. At this time, the status of the movable tube 1 54 and the movable tube 2 55 is as follows: Figure 9 As shown, the fan 31 extracts the gas in the cavity 262, the pressure in the cavity 262 decreases, and the stamping part passes through the through hole 28 and is adsorbed on the moving block 24;

[0059] ④ The second linear actuator 311 drives the movable nozzle 33 to move away from the avoidance hole 37. The movable nozzle 33 enters the third cavity 310. The first linear actuator 21 extends, and the upper punch 22 passes through the avoidance hole 37 to punch the workpiece.

[0060] ⑤ After the stamping is completed, the linear actuator 1 21 drives the upper pressure head 22 to move up to the avoidance hole 37. At this time, the upper pressure head 22 is located above the movable nozzle 33 in the vertical direction, and the linear actuator 35 drives the movable frame 34 to move up until the upper pressure head 22 and the movable frame 34 move to the position in step ①. During the upward movement of the upper pressure head 22 and the movable frame 34, the movable tube 1 54 and the movable tube 2 55 gradually return to their original positions under the action of the elastic member 3 57 and the elastic member 4 58. When the cleaning hole 1 56 and the connecting hole 44 correspond to each other in the horizontal direction, the movable tube 2 55 closes the cleaning hole 2 59, and the fan 31 draws the gas around the upper pressure head 22 into the cavity 4 41 through the ventilation duct 2 42 and the ventilation duct 4 43 to cool the upper pressure head 22;

[0061] ⑤ Remove the stamped workpiece from the mounting seat 23 and replace it with a new one according to step ②. Then, the linear actuator 35 is started to drive the movable frame 34 to move downward. At the same time, the linear actuator 2 311 drives the movable nozzle 33 to move into the avoidance hole 37. The fan 31 blows air vertically to the new workpiece through the air outlet 39 to clean the surface of the new workpiece.

[0062] Repeat steps ① to ⑤ to stamp multiple parts to be stamped.

Claims

1. A medical component stamping device, comprising a frame, an upper pressing head and a mounting seat for placing the component to be stamped, characterized in that: A movable frame is vertically slidably assembled on the frame, and an avoidance hole for avoiding the upper pressure head is provided on the movable frame. A fan and a movable nozzle are provided on the movable frame, and an air inlet hole and an air outlet hole are provided on the movable nozzle. The movable nozzle is horizontally slidably assembled on the movable frame to enter and exit the avoidance hole. When the air inlet hole is connected to the high-pressure side of the fan, the air outlet hole is vertically located in the avoidance hole and blows air vertically downward. A stamping cavity is provided in the mounting seat, and a punching hole is provided on the top of the stamping cavity. The part to be stamped is placed on the mounting seat and located above the punching hole. A ventilation duct three is provided on the mounting seat and is connected to the stamping cavity. When the ventilation duct three is connected to the low-pressure side of the fan, the movable nozzle slides to leave the avoidance hole, and the part to be stamped is adsorbed on the mounting seat. The mobile frame is provided with a second ventilation duct, which is used to extract the gas around the upper pressure head to cool the upper pressure head; one end of the ventilation duct is connected to the avoidance hole, The other end is fixedly connected to the side wall of ventilation duct four, and a connecting hole for connecting to ventilation duct two is provided on the side wall of ventilation duct four. One end of ventilation duct four is connected to the low-pressure side of the fan, and a control component for controlling the connection relationship between ventilation duct four and ventilation duct three and ventilation duct two is provided between the other end of ventilation duct four and ventilation duct three. When ventilation duct four is connected to ventilation duct three, the negative pressure side of the fan adsorbs the parts to be stamped on the mounting seat; when ventilation duct four is connected to ventilation duct two, the negative pressure side of the fan is used to cool the upper pressure head.

2. A medical component stamping device according to claim 1, characterized in that: The control component includes a movable tube 1 and a movable tube 2 extending up and down, the movable tube 1 is open at the top and closed at the bottom, the upper part of the movable tube 1 is assembled in the ventilation duct 4 and fits against the inner wall of the ventilation duct 4, and a cleaning hole 2 is provided on one side wall of the movable tube; the movable tube 2 is passed through from top to bottom, the movable tube 2 is slidably assembled in the movable tube 1 up and down and fits against the inner wall of the movable tube 1, when the movable tube 1 is located above the ventilation duct 3, the movable tube 2 closes the cleaning hole 2, the ventilation duct 4 is connected to the ventilation duct 2 through the connecting hole, and the negative pressure side of the fan is used to cool the upper pressure head; when the movable tube 1 is installed in the ventilation duct 3 and the movable tube 2 moves up a predetermined distance relative to the movable tube 1, the ventilation duct 4 is connected to the ventilation duct 3 through the cleaning hole 2, and the negative pressure side of the fan adsorbs the parts to be stamped on the mounting seat.

3. A medical component stamping device according to claim 2, characterized in that: An elastic member four extending up and down is provided between the movable tube one and the movable tube two. The elastic member four has elastic potential energy that causes the movable tube two to close the cleaning hole two. A flange is fixed on the outer peripheral surface of the movable tube two. The flange is slidably assembled in the cleaning hole two up and down. The flange is used to contact the top surface of the ventilation duct three to enable relative movement between the movable tube one and the movable tube two.

4. A medical component stamping device according to claim 3, characterized in that: The movable tube 1 is slidably assembled in the ventilation duct 4 up and down, and a cleaning hole 1 is provided on one side wall of the movable tube. An elastic member 3 extending up and down is provided between the movable tube 1 and the ventilation duct 4. The elastic member 3 has elastic potential energy that makes the cleaning hole 1 and the connecting hole correspond to each other in the horizontal direction; when the ventilation duct 4 is connected to the ventilation duct 3 through the cleaning hole 2, the movable tube 1, the movable tube 2 and the ventilation duct 3 are relatively fixed, and the ventilation duct 4 moves downward relative to the movable tube so that the movable tube 1 closes the connecting hole.

5. A medical component stamping device according to claim 4, characterized in that: The movable frame is provided with cavity 2 and cavity 4 which are isolated from each other. The high-pressure side of the fan is located in cavity 2, and the low-pressure side of the fan is located in cavity 4. A ventilation duct 1 is provided between cavity 2 and the movable nozzle. One end of the ventilation duct 1 is connected to cavity 2, and the other end face is fitted with the outer peripheral surface of the movable nozzle. The end face of the other end of the ventilation duct 1 is located on the moving path of the air inlet. When the air inlet is connected to the other end of the ventilation duct 1, the air outlet is located in the avoidance hole in the vertical direction and blows air vertically downward; when the air inlet is staggered with the other end of the ventilation duct 1, the top surface of the movable nozzle closes the other end of the ventilation duct 1. A pressure relief valve is installed on the movable frame. When the pressure in cavity 2 reaches a predetermined value, the pressure relief valve opens to reduce the pressure in cavity 2.

6. A medical component stamping device according to claim 5, characterized in that: The movable frame is equipped with an air suction valve. When the pressure in the cavity four decreases to a predetermined value, the air suction valve opens to increase the pressure in the cavity four.

7. A medical component stamping device according to claim 6, characterized in that: A plurality of limiting rods are assembled on the mounting seat. The limiting rods are located at the periphery of the workpiece to be punched and contact the side surfaces of the workpiece to be punched so as to fix the workpiece to be punched in the horizontal direction.

8. A medical component stamping device according to claim 7, characterized in that: A moving block is assembled and slidably moved up and down in the stamping cavity. An elastic member is provided between the moving block and the stamping cavity. The elastic member has elastic potential energy for driving the moving block to move upward so that the top surface of the moving block is flush with the top surface of the punching hole. The moving block is provided with a plurality of through holes that pass through the upper and lower parts and are connected to the stamping cavity. The top surface of the through hole contacts the bottom surface of the part to be stamped.

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