Forming equipment for precision chip processing

Abstract

The invention relates to the technical field of chip processing, in particular to precision chip processing forming equipment which comprises a workbench, a rotating table is rotatably arranged on the top surface of the workbench, a plurality of mounting blocks are fixed on the rotating table, a plurality of mounting grooves are formed in the surfaces of the mounting blocks, and the precision chip processing forming equipment further comprises a mounting base and a plurality of positioning blocks, a supporting table and a jacking block are arranged above the mounting base, a first electric push rod is fixed between the supporting table and the mounting base, and a second electric push rod is fixed between the jacking block and the mounting base; the lower pressing block is arranged above the supporting table, and a third electric push rod is fixed to the top face of the lower pressing block; the angle and position of the pin are finely adjusted and straightened while the pin is fixed, so that the pin reaches an ideal initial state before entering a bending process, time consumption and cost increase of an independent straightening process are avoided, integrated operation of straightening and positioning is realized, and the production efficiency is favorably improved.

Description

Technical Field

[0001] The present invention relates to the field of chip processing, and in particular to a molding device for precision chip processing. Background Art

[0002] Semiconductor chip processing technology includes technologies such as photolithography, thin film deposition, etching, molding, and other precision technologies and process integration based on silicon wafers.

[0003] In the pre-process of chip forming, for example, during the conveying process, it is a common problem for chip pins to be skewed. If the skewed pins are bent directly, due to the deviation in the initial position of the pins, the uneven force during bending may cause the pins to further twist, deform or even break. It is also difficult to ensure the dimensional accuracy and coplanarity of the final forming, which directly affects the electrical connection reliability and mechanical strength of the chip.

[0004] In traditional methods, it is necessary to detect and select skewed pins before bending and forming, and then transport them to straightening equipment or other devices for special adjustment of the pins. Although the skew can be corrected, it will increase independent processes, resulting in longer production processes and increased equipment investment. At the same time, multiple pin transports may introduce new stress or surface damage, which will affect the forming quality. In addition, additional manual operations or equipment operations will increase time and production costs. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art that the skewed pins need to be straightened by independent equipment, which affects the production efficiency, and to propose a molding equipment for precision chip processing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a molding device for precision chip processing, comprising a workbench, a rotating table rotatably provided on the top surface of the workbench, a plurality of mounting blocks fixed to the rotating table, the surfaces of the mounting blocks having a plurality of mounting grooves, and further comprising: A mounting seat, the mounting seat is fixed on the workbench, a support platform and a push block are provided above the mounting seat, a first electric push rod is fixed between the support platform and the mounting seat, and a second electric push rod is fixed between the push block and the mounting seat; A lower pressing block is arranged above the support platform, a third electric push rod is fixed on the top surface of the lower pressing block, the third electric push rod is fixedly connected to the mounting seat through a bracket, the lower pressing block is U-shaped, and a mounting cavity is provided inside the lower pressing block, a first extrusion strip is fixed on the inner wall of the mounting cavity, and an extrusion port is opened on the first extrusion strip; A sliding frame is arranged inside the mounting cavity, and a plurality of straightening cylinders are rotatably connected to the bottom surface of the sliding frame, wherein two straightening cylinders are grouped together and symmetrically arranged on both sides of the chip pins; A guide groove is provided on a side wall of the mounting cavity, a guide pin is inserted into the guide groove, and one end of the guide pin is rotatably connected to the sliding frame; An elastic pressing member, wherein the fixed end of the elastic pressing member is slidably connected to the pressing block, and the pressing end of the elastic pressing member is fixed to the sliding frame.

[0007] Specifically, the chip is picked up by an external mechanical picking device and placed in the mounting groove of the mounting block. A clamping piece can be provided in the mounting groove to position the chip. By starting the rotating table, the rotating table is rotated, thereby driving the chip in the mounting block to move and switch the work station. This is the existing technology and will not be described in detail here. When the chip moves to the forming station, the first electric push rod is started and pushed upward, so that the support table moves to the bottom of the chip pin to support the bottom of the pin. Then, the third electric push rod is started to push the lower pressure block downward, and the top surface of the pin is squeezed and positioned by the lower pressure block, thereby ensuring stability in the subsequent bending and forming process. Finally, the second electric push rod is started to push the push block upward to squeeze and bend the chip pin. Furthermore, in the process of the downward movement of the pressing block, under the elastic squeezing action of the elastic pressing member, the bottom end of the straightening cylinder at the bottom of the sliding frame first contacts the support platform and is in stable contact with the support platform, and a straightening cylinder is provided on both sides of each pin. As the pressing block continues to move downward, the guide pin slides in the guide groove, and under the guidance of the guide groove, the sliding frame is driven to slide along the length direction of the pin, so that the straightening cylinder moves and straightens on both sides of the pin; It should be noted that, during the downward movement of the lower pressing block, the mounting cavity can be gradually sleeved on the support platform, thereby ensuring that the lower pressing block can be pressed down smoothly, so that the extrusion opening on the first extrusion strip can extrude and position the top surface of the pin; In summary, the present invention fine-tunes and straightens the angle and position of the pin while fixing it, so that the pin reaches an ideal initial state before entering the bending process. This method avoids the time consumption and cost increase of the independent straightening process, realizes the integrated operation of straightening and positioning, and is conducive to improving production efficiency.

[0008] Preferably, the elastic pressing member includes an elastic telescopic rod, a slide groove is provided on the top surface of the pressing block, the fixed end of the elastic telescopic rod is slidably connected inside the slide groove, and the movable end of the elastic telescopic rod is fixed to the top surface of the sliding frame.

[0009] Specifically, during the downward movement of the lower pressure block, the bottom end of the straightening cylinder at the bottom of the sliding frame first contacts the support platform. Under the obstruction of the support platform, during the subsequent downward movement of the lower pressure block, the elastic telescopic rod can retract and make way, and by making the elastic telescopic rod slide in the slide groove, the sliding frame can move along the length direction of the pin, thereby ensuring the accuracy of the position of the straightening cylinder during the movement.

[0010] Preferably, a moving ring is sleeved on the outer side of the rotating shaft of the straightening cylinder, a fourth electric push rod is fixed between the moving ring and the sliding frame, and a brake disc is fixed on the bottom surface of the moving ring.

[0011] Specifically, the straightening method of the chip pins depends on the material properties. Some pins are made of soft materials and are often straightened by rolling. Some pins are made of hard materials and it is difficult to form a stable straightening effect by rolling straightening. In order to solve the above problem, the present invention provides a brake disc. By starting the fourth electric push rod, the brake disc can be pushed downward to squeeze and position the straightening cylinder, thereby preventing the straightening cylinder from rotating during the movement of the sliding frame, so that the straightening cylinder and the pins are in sliding contact, thereby pulling and straightening the pins. During the chip pin straightening process, some pins may rebound due to the elasticity of the material, resulting in limited straightening effect. For this reason, the traditional pull-and-straighten method can be improved. During straightening, the brake disc is intermittently controlled to lift up, so that it is out of the braking state of the straightening cylinder, prompting the straightening cylinder to resume free rotation, and at the same time, the downward push of the pressure block is synchronously stopped to prevent the straightening cylinder from moving horizontally. At this time, the pin naturally rebounds to the initial bending state under the action of the internal stress of the material. After the rebound is completed, the straightening cylinder is first re-locked by the brake disc to limit its rotation, and then the straightening cylinder is continued to be driven horizontally for secondary straightening. This cycle is repeated. During the straightening process, the internal stress is released by allowing the pin to rebound naturally, and the residual elastic deformation inside the pin is gradually eliminated. By controlling the rotation and positioning state of the straightening cylinder, the rebound is converted into a stress release link, which effectively solves the rebound problem caused by the residual stress of a single straightening of hard materials or high-rigidity pins, and significantly improves the straightening quality of pins of this material.

[0012] Preferably, the installation cavity is vertically slidably connected to a second extrusion bar on one side away from the first extrusion bar, a slide rod is fixed on the top surface of the second extrusion bar, the top end of the slide rod passes through the lower pressing block, and a third spring is sleeved on the slide rod.

[0013] Preferably, a first rotating disk and a second rotating disk are rotatably connected on the outer wall of the movable ring, the first rotating disk is arranged above the second rotating disk, a slot is provided on the first rotating disk, and an arc groove is provided on the second rotating disk, a positioning pin is fixed on the top surface of the straightening cylinder, the positioning pin passes through the arc groove and is inserted into the slot, a through groove is provided on the top surface of the first rotating disk, a connecting plate is inserted into the inside of the through groove, the bottom of the connecting plate is fixed on the top surface of the second rotating disk, a second spring is fixed between the inner wall of the through groove and the connecting plate, and positioning components are provided on the side walls of the first rotating disk and the second rotating disk, and the positioning components are used to respectively limit the rotation of the first rotating disk and the second rotating disk.

[0014] Preferably, the positioning assembly includes a first strip groove and a second strip groove, the first strip groove is opened on the top surface of the first rotating disk, and the second strip groove is opened on the top surface of the second rotating disk, electromagnets are fixed inside the first strip groove and the second strip groove, and the movable ring is made of ferromagnetic material.

[0015] Preferably, a damping belt is fixed on the inner wall of the arc-shaped groove, a plurality of limiting protrusions are fixed on the surface of the damping belt, and a side of the limiting protrusion close to the connecting plate has a clearance groove, and the clearance groove is opened on the surface of the damping belt.

[0016] Preferably, the support platform includes a fixed platform and a movable platform, the fixed platform is fixed to the first electric push rod, the movable platform is arranged above the fixed platform, a plurality of sliding rods are vertically slidably connected inside the fixed platform, the top ends of the sliding rods are fixed on the bottom surface of the movable platform, a plurality of first springs are arranged between the movable platform and the fixed platform, a pressure sensor is fixed to the bottom of one of the first springs, and a guide groove is provided on the top surface of the movable platform.

[0017] Preferably, a groove is provided on the top surface of the fixed platform, and the fifth electric push rod is fixed in the groove. A transmission frame is fixed on the top surface of the fifth electric push rod, and a U-shaped plate is inserted inside the transmission frame. The top end of the U-shaped plate is fixed on the bottom surface of the movable platform.

[0018] Preferably, gears are sleeved and fixed on the rotating shafts of the two straightening cylinders in the same group, and a synchronous belt is sleeved on the outer sides of the two gears.

[0019] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention fine-tunes and straightens the angle and position of the pin while fixing it, so that the pin reaches the ideal initial state before entering the bending process. This method avoids the time consumption and cost increase of the independent straightening process, realizes the integrated operation of straightening and positioning, and is conducive to improving production efficiency.

[0020] 2. During the straightening process, the internal stress of the pin is released by allowing it to rebound naturally, and the residual elastic deformation inside the pin is gradually eliminated. By controlling the rotation and positioning state of the straightening cylinder, the rebound is converted into a stress release link, which effectively solves the rebound problem caused by the residual stress of a single straightening of hard materials or high-rigidity pins, and significantly improves the straightening quality of pins of this material.

[0021] 3. When the rebound distance is small, the moving stroke of the locating pin in the arc groove of the second rotating disk is insufficient and may not reach the right end limit point of the arc groove. At this time, under the action of the second spring force, the second rotating disk will still actively rotate toward the locating pin until the left end of its arc groove contacts the locating pin, providing a stable limit starting point for each straightening action, so that the right end of the arc groove can always play a limiting role after the locating pin moves. This adaptive adjustment not only ensures the effective angle limit during large rebound, but also solves the initial alignment problem during small rebound. From the structural design, it ensures the reliability of the equipment in different straightening stages and significantly improves its adaptability to complex working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is a structural schematic diagram of the mounting seat, the push block and the lower pressing block of the present invention.

[0024] Figure 3 It is a schematic structural diagram of the lower pressing block of the present invention.

[0025] Figure 4 It is a structural schematic diagram of the lower pressing block and the supporting platform of the present invention.

[0026] Figure 5 It is a schematic diagram of the cross-sectional structure of the lower pressing block of the present invention.

[0027] Figure 6 It is a schematic diagram of the cross-sectional structure of the straightening cylinder of the present invention.

[0028] Figure 7 It is a schematic structural diagram of the first rotating disk and the second rotating disk of the present invention.

[0029] Figure 8 It is a schematic diagram of the cross-sectional structure of the first rotating disk of the present invention.

[0030] Figure 9 For the present invention Figure 8 A in the figure is an enlarged structural diagram.

[0031] In the figure: 1. Workbench; 2. Rotating table; 3. Mounting block; 4. Mounting groove; 5. Mounting seat; 6. Support table; 7. Push block; 8. First electric push rod; 9. Second electric push rod; 10. Pressing block; 11. Third electric push rod; 12. Bracket; 13. Mounting cavity; 14. First extrusion strip; 15. Extrusion port; 16. Sliding frame; 17. Alignment cylinder; 18. Guide groove; 19. Guide pin; 20. Elastic telescopic rod; 21. Slide groove; 22. Moving ring; 23. Fourth electric push rod; 24. Brake disc; 25. Second extrusion strip; 26. Sliding rod; 27. Third spring ; 28. First rotating disk; 29. ​​Second rotating disk; 30. Slot; 31. Arc groove; 32. Positioning pin; 33. Through groove; 34. Connecting plate; 35. Second spring; 36. First strip groove; 37. Second strip groove; 38. Electromagnet; 39. Damping belt; 40. Limiting protrusion; 41. Giving groove; 42. Fixed platform; 43. Movable platform; 44. Sliding rod; 45. First spring; 46. Pressure sensor; 47. Guide groove; 48. Groove; 49. Fifth electric push rod; 50. Transmission frame; 51. U-shaped plate; 52. Gear; 53. Synchronous belt. DETAILED DESCRIPTION

[0032] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0033] like Figures 1 to 9 The molding equipment for precision chip processing shown in the figure includes a workbench 1, a rotating table 2 is rotatably provided on the top surface of the workbench 1, a plurality of mounting blocks 3 are fixed on the rotating table 2, and the surface of the mounting blocks 3 has a plurality of mounting grooves 4, and further includes: Mounting base 5, the mounting base 5 is fixed on the workbench 1, a support platform 6 and a push block 7 are provided above the mounting base 5, a first electric push rod 8 is fixed between the support platform 6 and the mounting base 5, and a second electric push rod 9 is fixed between the push block 7 and the mounting base 5; The lower pressing block 10 is arranged above the support platform 6. A third electric push rod 11 is fixed on the top surface of the lower pressing block 10. The third electric push rod 11 is fixedly connected to the mounting seat 5 through a bracket 12. The lower pressing block 10 is U-shaped and has a mounting cavity 13 inside. A first extrusion strip 14 is fixed on the inner wall of the mounting cavity 13. An extrusion port 15 is provided on the first extrusion strip 14. The sliding frame 16 is arranged inside the mounting cavity 13. A plurality of straightening cylinders 17 are rotatably connected to the bottom surface of the sliding frame 16. The straightening cylinders 17 are grouped in two and symmetrically arranged on both sides of the chip pins. A guide groove 18 is formed on a side wall of the mounting cavity 13 , and a guide pin 19 is inserted into the guide groove 18 . One end of the guide pin 19 is rotatably connected to the sliding frame 16 . The elastic pressing member has a fixed end which is slidably connected to the pressing block 10 , and a pressing end which is fixed to the sliding frame 16 .

[0034] Specifically, the chip is picked up by an external mechanical picking device and placed in the mounting groove 4 of the mounting block 3. A clamping piece can be set in the mounting groove 4 to position the chip. By starting the rotating table 2, the rotating table 2 is rotated, thereby driving the chip in the mounting block 3 to move and switch the work station. This is the existing technology and will not be described in detail here. When the chip moves to the forming station, the first electric push rod 8 is started and pushed upward, so that the support table 6 moves to the bottom of the chip pin to support the bottom of the pin. Then, the third electric push rod 11 is started to push the lower pressing block 10 downward, and the top surface of the pin is squeezed and positioned by the lower pressing block 10, thereby ensuring stability in the subsequent bending and forming process. Finally, the second electric push rod 9 is started to push the pushing block 7 upward to squeeze and bend the chip pin. Furthermore, in the process of downward movement of the pressing block 10, under the elastic squeezing action of the elastic pressing member, the bottom end of the straightening cylinder 17 at the bottom of the sliding frame 16 first contacts the support platform 6 and is in stable contact with the support platform 6, and a straightening cylinder 17 is provided on both sides of each pin. As the pressing block 10 continues to move downward, the guide pin 19 slides in the guide groove 18. Under the guidance of the guide groove 18, the sliding frame 16 is driven to slide along the length direction of the pin, so that the straightening cylinder 17 moves and straightens on both sides of the pin. It should be noted that, during the downward movement of the lower pressing block 10, the mounting cavity 13 can be gradually sleeved on the support platform 6, thereby ensuring that the lower pressing block 10 can be pressed down smoothly, so that the extrusion opening 15 on the first extrusion strip 14 can squeeze and position the top surface of the pin; In summary, this implementation method fine-tunes and straightens the angle and position of the pin while fixing it, so that the pin reaches the ideal initial state before entering the bending process. This method avoids the time consumption and cost increase of the independent straightening process, realizes the integrated operation of straightening and positioning, and is conducive to improving production efficiency.

[0035] As a further embodiment of the present invention, the elastic pressing member includes an elastic telescopic rod 20, a slide groove 21 is opened on the top surface of the lower pressing block 10, the fixed end of the elastic telescopic rod 20 is slidably connected inside the slide groove 21, and the movable end of the elastic telescopic rod 20 is fixed to the top surface of the sliding frame 16.

[0036] Specifically, during the downward movement of the lower pressing block 10, the bottom end of the straightening cylinder 17 at the bottom of the sliding frame 16 first contacts the support platform 6. Under the obstruction of the support platform 6, during the subsequent downward movement of the lower pressing block 10, the elastic telescopic rod 20 can be retracted to make way, and by making the elastic telescopic rod 20 slide in the slide groove 21, the sliding frame 16 can move along the length direction of the pin, ensuring the accuracy of the position of the straightening cylinder 17 during the movement.

[0037] As a further embodiment of the present invention, a moving ring 22 is sleeved on the outer side of the rotating shaft of the straightening cylinder 17 , a fourth electric push rod 23 is fixed between the moving ring 22 and the sliding frame 16 , and a brake disc 24 is fixed on the bottom surface of the moving ring 22 .

[0038] Specifically, the straightening method of the chip pins depends on the material properties. Some pins are made of soft materials and are often straightened by rolling. Some pins are made of hard materials and it is difficult to form a stable straightening effect by rolling straightening. In order to solve the above problem, the present invention provides a brake disc 24. By starting the fourth electric push rod 23, the brake disc 24 can be pushed downward to squeeze and position the straightening cylinder 17, thereby preventing the straightening cylinder 17 from rotating during the movement of the sliding frame 16, so that the straightening cylinder 17 is in sliding contact with the pins, thereby pulling and straightening the pins. During the chip pin straightening process, some pins may rebound due to the elasticity of the material, resulting in limited straightening effect. For this reason, the traditional pull-and-straighten method can be improved. During straightening, the brake disc 24 is intermittently controlled to lift up, so that it is out of the braking state of the straightening cylinder 17, prompting the straightening cylinder 17 to resume free rotation, and at the same time, the downward push of the pressing block 10 is synchronously stopped to prevent the straightening cylinder 17 from moving horizontally. At this time, the pin naturally rebounds to the initial bending state under the action of the internal stress of the material. After the rebound is completed, the straightening cylinder 17 is first re-locked by the brake disc 24 to limit its rotation, and then the straightening cylinder 17 is continued to be driven horizontally for secondary straightening. This cycle is repeated. During the straightening process, the internal stress is released by allowing the pin to rebound naturally, and the residual elastic deformation inside the pin is gradually eliminated. This embodiment converts the rebound into a stress release link by controlling the rotation and positioning state of the straightening cylinder 17, effectively solving the rebound problem caused by the residual stress of a single straightening of hard materials or high-rigidity pins, and significantly improving the straightening quality of pins of this material.

[0039] As a further embodiment of the present invention, the installation cavity 13 is vertically slidably connected to a second extrusion bar 25 on the side away from the first extrusion bar 14, and a sliding rod 26 is fixed on the top surface of the second extrusion bar 25. The top end of the sliding rod 26 passes through the lower pressing block 10, and a third spring 27 is sleeved on the sliding rod 26.

[0040] Specifically, during the process of pulling the pin back and forth for straightening, the root of the pin is subjected to greater force and may be damaged. In order to reduce the damage to the root of the pin, the present invention provides a third spring 27 to continuously provide a downward extrusion force to the second extrusion bar 25, and the root of the pin is squeezed and positioned by the second extrusion bar 25 to reduce the damage to the root of the pin.

[0041] As a further embodiment of the present invention, a first rotating disk 28 and a second rotating disk 29 are rotatably connected on the outer wall of the movable ring 22. The first rotating disk 28 is arranged above the second rotating disk 29. A slot 30 is provided on the first rotating disk 28, and an arc-shaped slot 31 is provided on the second rotating disk 29. A positioning pin 32 is fixed on the top surface of the straightening cylinder 17. The positioning pin 32 passes through the arc-shaped slot 31 and is inserted into the slot 30. A through slot 33 is provided on the top surface of the first rotating disk 28, and a connecting plate 34 is inserted into the through slot 33. The bottom of the connecting plate 34 is fixed on the top surface of the second rotating disk 29, and a second spring 35 is fixed between the inner wall of the through slot 33 and the connecting plate 34. Positioning components are provided on the side walls of the first rotating disk 28 and the second rotating disk 29, and the positioning components are used to respectively limit the rotation of the first rotating disk 28 and the second rotating disk 29.

[0042] Specifically, when the pin is short, the pulling distance is also short during the intermittent pulling and relaxing process. If the pin is greatly bent, the rebound distance will be long, which may make it difficult to completely straighten the pin during subsequent pulling, thereby affecting the subsequent straightening effect. The present invention can solve the above problem. The specific working method is as follows: in the compressed state, the first rotating disk 28 is in a positioned state, and the second rotating disk 29 is in a rotatable state. Under the elastic force of the second spring 35, the left end of the arc groove 31 on the second rotating disk 29 contacts the positioning pin 32, wherein the end of the arc groove 31 in the second rotating disk 29 close to the connecting plate 34 is the left end; When the pins release stress during intermittent rebound, they pull the brake disc 24 upward. As the brake disc 24 moves upward, the squeezing of the straightening cylinder 17 is gradually relieved, and the straightening cylinder 17 gradually returns to a rotatable state. After the straightening cylinder 17 is able to rotate, the straightening cylinder 17 starts to rotate due to the pull of the pins' rebound force, thereby driving the positioning pin 32 fixed thereto to move. When the brake disc 24 is pulled upward, the positioning of the first rotating disc 28 is simultaneously cancelled, making it rotatable, and the second rotating disc 29 is positioned to be fixed. At this time, driven by the rotation of the straightening cylinder 17, the positioning pin 32 moves in the arc groove 31 of the second rotating disc 29, gradually moving from the left end of the arc groove 31 to the right end until it is blocked by the right end and cannot move further. The arc groove 31 on the second rotating disc 29 limits the moving distance of the positioning pin 32, which can limit the rotation angle of the straightening cylinder 17, thereby effectively limiting the rebound distance of the pin, and avoiding affecting the subsequent straightening effect due to excessive rebound distance; When the positioning pin 32 moves to the right end of the arc groove 31 on the second rotating disk 29 and is prevented from moving further, it is necessary to press the brake disk 24 downward to squeeze and position the straightening cylinder 17 again to ensure that the straightening cylinder 17 is in a fixed state. After the positioning of the straightening cylinder 17 is completed, the first rotating disk 28 is positioned again to fix it, and the positioning of the second rotating disk 29 is canceled to restore it to a rotatable state. It should be noted that during the movement of the positioning pin 32, since the first rotating disk 28 is in a free rotation state, the positioning pin 32 The movement of the first rotating disk 28 will drive the first rotating disk 28 to rotate together, thereby compressing the second spring 35, so that the second spring 35 stores elastic potential energy. When the positioning of the second rotating disk 29 is cancelled and the first rotating disk 28 is positioned synchronously, the stored elastic potential energy is released. Under the push of the second spring 35, the second rotating disk 29 will rotate, and the left end of its arc-shaped groove 31 will contact the positioning pin 32 again. In this way, when the straightening cylinder 17 is loosened next time, the second rotating disk 29 can limit the positioning pin 32 in time, ensuring the smoothness and stability of the entire work process. On the other hand, due to the different bending degrees of the pins, some pins even have complex S-shaped bends, resulting in their rebound distance being large and small at times. When the rebound distance is small, the moving stroke of the locating pin 32 in the arc groove 31 of the second rotating disk 29 is insufficient, and it may not be able to reach the right end limit point of the arc groove 31. At this time, under the action of the elastic force of the second spring 35, the second rotating disk 29 will still actively rotate toward the locating pin 32 until the left end of its arc groove 31 contacts the locating pin 32, providing a stable limit starting point for each straightening action, so that the right end of the arc groove 31 can always play a limiting role after the locating pin 32 moves. This adaptive adjustment not only ensures the effective angle limit during large rebound, but also solves the initial alignment problem during small rebound. It ensures the reliability of the equipment in different straightening stages from the structural design and significantly improves its adaptability to complex working conditions.

[0043] As a further embodiment of the present invention, the positioning assembly includes a first strip groove 36 and a second strip groove 37. The first strip groove 36 is opened on the top surface of the first rotating disk 28, and the second strip groove 37 is opened on the top surface of the second rotating disk 29. Electromagnets 38 are fixed inside the first strip groove 36 and the second strip groove 37, and the movable ring 22 is made of ferromagnetic material.

[0044] Specifically, by activating the electromagnet 38 in the first strip groove 36, the electromagnet 38 adsorbs the movable ring 22, thereby positioning the first rotating disk 28. By activating the electromagnet 38 in the second strip groove 37, the electromagnet 38 adsorbs the movable ring 22, thereby positioning the second rotating disk 29, thereby completing the positioning function.

[0045] As a further embodiment of the present invention, a damping belt 39 is fixed on the inner wall of the arc groove 31, and a plurality of limiting protrusions 40 are fixed on the surface of the damping belt 39. The limiting protrusion 40 has a clearance groove 41 on the side close to the connecting plate 34, and the clearance groove 41 is opened on the surface of the damping belt 39.

[0046] Specifically, when the positioning pin 32 moves from the left end to the right end in the arc groove 31, it squeezes the limiting protrusion 40, causing the limiting protrusion 40 to flip, reducing the gap between the positioning pin 32 and the damping band 39, forming an obstruction effect. Under the rebound action of the pin, the straightening cylinder 17 can be pulled to continue rotating, so that the positioning pin 32 continues to squeeze the limiting protrusion 40. The limiting protrusion 40 is made of elastic material and can shrink and deform to make way. By providing multiple limiting protrusions 40, multiple obstructions are formed on the positioning pin 32, thereby slowing down the movement speed of the limiting pin, slowing down the movement speed of the straightening cylinder 17, and then slowing down the rebound speed, avoiding too fast rebound, which causes the straightening cylinder 17 and the pin to slip. Furthermore, in the process of the second rotating disk 29 following the positioning pin 32, the second rotating disk 29 rotates, and the positioning pin 32 will push the limiting protrusion 40 in the opposite direction, so that the limiting protrusion 40 flips over and enters the clearance groove 41, thereby avoiding the limiting protrusion 40 from forming an obstruction, ensuring the rapid reset of the second rotating disk 29, and ensuring the next limiting accuracy.

[0047] As a further implementation scheme of the present invention, the support platform 6 includes a fixed platform 42 and a movable platform 43. The fixed platform 42 is fixed to the first electric push rod 8. The movable platform 43 is arranged above the fixed platform 42. The interior of the fixed platform 42 is vertically slidably connected with multiple sliding rods 44. The top of the sliding rod 44 is fixed on the bottom surface of the movable platform 43. Multiple first springs 45 are arranged between the movable platform 43 and the fixed platform 42. A pressure sensor 46 is fixed to the bottom of one of the first springs 45. A guide groove 47 is opened on the top surface of the movable platform 43.

[0048] Specifically, it can be seen from the above embodiment that in the process of straightening, loosening, rebounding and then straightening again, the pressing block 10 needs to stop pressing down multiple times. If this operation is also performed on normal pins, it will slow down production efficiency. In order to solve the above problem, the present invention provides a guide groove 47 on the movable table 43. When the pin is normal, the pin can be directly embedded in the guide groove 47 during the upward movement of the push support table 6. At this time, the pressing block 10 can be controlled to press down directly without the need for straightening operation, thereby speeding up production efficiency. When the pin is skewed, it is difficult for the pin to fit into the guide groove 47. Under the obstruction of the pin, the movable platform 43 is difficult to rise to the final position and compress the first spring 45. The first spring 45 compresses the pressure sensor 46, so that the pressure sensor 46 detects an increase in the pressure value, thereby determining that the pin is skewed, and performing subsequent straightening operations to slow down the downward speed of the pressing block 10.

[0049] As a further implementation scheme of the present invention, a groove 48 is opened on the top surface of the fixed table 42, and the fifth electric push rod 49 is fixed in the groove 48. A transmission frame 50 is fixed on the top surface of the fifth electric push rod 49, and a U-shaped plate 51 is inserted into the interior of the transmission frame 50. The top end of the U-shaped plate 51 is fixed on the bottom surface of the movable table 43.

[0050] Specifically, when the pressure sensor 46 detects pin deviation, the movable platform 43, pushed by the first spring 45, always tends to move upward, squeezing the bottom of the pin. Long-term squeezing may cause the pin to tilt upward. The present invention activates the fifth electric push rod 49 to pull the transmission frame 50 downward, contacting the U-shaped plate 51, and restricting the movable platform 43 from continuing to rise, thereby preventing the movable platform 43 from squeezing and damaging the pin. When the pins are straightened, the electric push rod is started to move upward to provide rigid support to the bottom of the movable platform 43 so that the movable platform 43 and the lower pressing block 10 can stably clamp the pins.

[0051] As a further embodiment of the present invention, a gear 52 is sleeved and fixed on the rotating shaft of the two straightening cylinders 17 in the same group, and a synchronous belt 53 is sleeved on the outer sides of the two gears 52 .

[0052] Specifically, when one of the straightening cylinders 17 rotates, it can drive the gear 52 connected to it to rotate, and drive the two gears 52 to rotate synchronously through the synchronous belt 53, so that the two straightening cylinders 17 rotate synchronously. By ensuring the synchronization of the two straightening cylinders 17, it is beneficial to improve the formation of a stable straightening effect. Among them, the synchronous belt 53 can also use a synchronous chain to reduce the adverse effects of elastic deformation on the synchronization effect.

[0053] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the invention as claimed.

Claims

1. A molding device for precision chip processing, comprising a workbench (1), a rotating table (2) rotatably provided on the top surface of the workbench (1), a plurality of mounting blocks (3) fixed on the rotating table (2), a plurality of mounting grooves (4) on the surface of the mounting blocks (3), characterized in that: Also includes: A mounting seat (5), the mounting seat (5) being fixed on the workbench (1), a support platform (6) and a push block (7) being provided above the mounting seat (5), a first electric push rod (8) being fixed between the support platform (6) and the mounting seat (5), and a second electric push rod (9) being fixed between the push block (7) and the mounting seat (5); A lower pressing block (10), the lower pressing block (10) is arranged above the support platform (6), a third electric push rod (11) is fixed on the top surface of the lower pressing block (10), the third electric push rod (11) is fixedly connected to the mounting seat (5) via a bracket (12), the lower pressing block (10) is U-shaped, and a mounting cavity (13) is provided inside the lower pressing block (10), a first extrusion strip (14) is fixed on the inner wall of the mounting cavity (13), and an extrusion opening (15) is provided on the first extrusion strip (14); A sliding frame (16), the sliding frame (16) is arranged inside the mounting cavity (13), and a plurality of straightening cylinders (17) are rotatably connected to the bottom surface of the sliding frame (16), and the straightening cylinders (17) are grouped in two and symmetrically arranged on both sides of the chip pins; A guide groove (18), the guide groove (18) being formed on a side wall of the mounting cavity (13), a guide pin (19) being inserted into the interior of the guide groove (18), and one end of the guide pin (19) being rotatably connected to the sliding frame (16); An elastic pressing member, wherein the fixed end of the elastic pressing member is slidably connected to the pressing block (10), and the pressing end of the elastic pressing member is fixed to the sliding frame (16).

2. The molding equipment for precision chip processing according to claim 1, characterized in that: The elastic downward pressing member comprises an elastic telescopic rod (20), a sliding groove (21) is provided on the top surface of the downward pressing block (10), a fixed end of the elastic telescopic rod (20) is slidably connected inside the sliding groove (21), and a movable end of the elastic telescopic rod (20) is fixed to the top surface of the sliding frame (16).

3. The molding equipment for precision chip processing according to claim 1, characterized in that: A moving ring (22) is sleeved on the outer side of the rotating shaft of the straightening cylinder (17), a fourth electric push rod (23) is fixed between the moving ring (22) and the sliding frame (16), and a brake disc (24) is fixed on the bottom surface of the moving ring (22).

4. The molding equipment for precision chip processing according to claim 3, characterized in that: A second extrusion strip (25) is vertically slidably connected to the side of the installation cavity (13) away from the first extrusion strip (14), a slide rod (26) is fixed on the top surface of the second extrusion strip (25), the top end of the slide rod (26) passes through the lower pressing block (10), and a third spring (27) is sleeved on the slide rod (26).

5. The molding equipment for precision chip processing according to claim 3, characterized in that: A first rotating disk (28) and a second rotating disk (29) are rotatably connected on the outer wall of the movable ring (22). The first rotating disk (28) is arranged above the second rotating disk (29). A slot (30) is provided on the first rotating disk (28), and an arc groove (31) is provided on the second rotating disk (29). A positioning pin (32) is fixed on the top surface of the straightening cylinder (17). The positioning pin (32) passes through the arc groove (31) and is inserted into the slot (30). The first rotating disk (28) is provided with a slot (30). A through slot (33) is provided on the top surface of the disk (28), a connecting plate (34) is inserted into the interior of the through slot (33), the bottom of the connecting plate (34) is fixed to the top surface of the second rotating disk (29), a second spring (35) is fixed between the inner wall of the through slot (33) and the connecting plate (34), and positioning components are provided on the side walls of the first rotating disk (28) and the second rotating disk (29), respectively, and the positioning components are used to limit the rotation of the first rotating disk (28) and the second rotating disk (29).

6. The molding equipment for precision chip processing according to claim 5, characterized in that: The positioning assembly includes a first strip groove (36) and a second strip groove (37), wherein the first strip groove (36) is provided on the top surface of the first rotating disk (28), and the second strip groove (37) is provided on the top surface of the second rotating disk (29), and electromagnets (38) are fixed inside the first strip groove (36) and the second strip groove (37), and the movable ring (22) is made of ferromagnetic material.

7. The molding equipment for precision chip processing according to claim 5, characterized in that: A damping belt (39) is fixed on the inner wall of the arc-shaped groove (31), and a plurality of limiting protrusions (40) are fixed on the surface of the damping belt (39). A side of the limiting protrusion (40) close to the connecting plate (34) has a clearance groove (41), and the clearance groove (41) is opened on the surface of the damping belt (39).

8. The molding equipment for precision chip processing according to claim 1, characterized in that: The support platform (6) includes a fixed platform (42) and a movable platform (43), wherein the fixed platform (42) is fixed to the first electric push rod (8), and the movable platform (43) is arranged above the fixed platform (42). A plurality of sliding rods (44) are vertically slidably connected inside the fixed platform (42), and the top ends of the sliding rods (44) are fixed to the bottom surface of the movable platform (43). A plurality of first springs (45) are arranged between the movable platform (43) and the fixed platform (42), wherein a pressure sensor (46) is fixed to the bottom of one of the first springs (45), and a guide groove (47) is provided on the top surface of the movable platform (43).

9. The molding equipment for precision chip processing according to claim 8, characterized in that: A groove (48) is provided on the top surface of the fixed platform (42), a fifth electric push rod (49) is fixed in the groove (48), a transmission frame (50) is fixed on the top surface of the fifth electric push rod (49), a U-shaped plate (51) is inserted into the interior of the transmission frame (50), and the top end of the U-shaped plate (51) is fixed on the bottom surface of the movable platform (43).

10. The molding equipment for precision chip processing according to claim 1, characterized in that: A gear (52) is sleeved and fixed on the rotating shafts of the two straightening cylinders (17) in the same group, and a synchronous belt (53) is sleeved on the outer sides of the two gears (52).

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