Precise positioning equipment and positioning method for precise mold machining

Abstract

The invention discloses precise positioning equipment and a positioning method for precise mold machining, and relates to the technical field of mold machining, the precise positioning equipment comprises a workbench and a fixing box, a circumferential driving assembly is arranged on the fixing box, a plurality of clamping assemblies are annularly arranged in the fixing box, and a plurality of molds are arranged in the fixing box; the circumferential driving assembly is used for driving the clamping assembly to operate, the clamping assembly is used for clamping and fixing the corresponding mold, the clamping assembly comprises a center belt wheel and a moving shaft, the moving shaft can longitudinally move relative to the center belt wheel and can also be fixed to the center belt wheel, and two through notches are formed in the moving shaft in the axis direction of the moving shaft. The problem that in the prior art, when the clamping state of a single mold is removed, the circumferential driving system needs to be restarted, and consequently the clamping states of all the molds are synchronously removed is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of mold processing, and in particular to a precision positioning device and a positioning method for precision mold processing. Background Art

[0002] With the continuous evolution of mold manufacturing technology, the industry has increasingly stringent requirements on mold precision and performance. As mold tools and components that obtain the required shape and structure of products through injection molding, die casting, stamping and other process means, the precise positioning and stable fixation of molds in the production and processing stage are particularly important. At present, in order to ensure the high stability of the mold processing process, specially designed mold positioning devices must be used to achieve accurate installation and locking of the mold.

[0003] In order to optimize the overall efficiency of the production line, the existing mold positioning device adopts multi-mold parallel clamping technology, which distributes multiple clamping components inside the device shell and arranges them in a circular array to ensure maximum space utilization. The shell is also integrated with a circular drive system, which has synchronous drive capabilities and can enable all clamping components to work together to achieve simultaneous clamping and fixing of multiple molds. Subsequently, the production line can process each mold in turn according to the preset order, thereby significantly improving production efficiency and processing capabilities.

[0004] The prior art also has the following defects: During the mold processing process, if the mold is damaged due to an operational error, it needs to be removed from the positioning device. Since the clamping action of all molds depends on the same circular drive system, when releasing the clamping state of a single mold, the circular drive system must be restarted. However, this will trigger a chain reaction, causing the clamping state of all molds to be released simultaneously, that is, the so-called "all clamping release" phenomenon occurs, which in turn affects the operating efficiency of the production line.

[0005] Therefore, the present application provides a precision positioning device and a positioning method for precision mold processing to meet the needs. Summary of the invention

[0006] The purpose of the present application is to provide a precision positioning device and a positioning method for precision mold processing, which solves the problem in the prior art that when releasing the clamping state of a single mold, the circular drive system needs to be restarted, so that the clamping state of all molds is released synchronously.

[0007] In order to solve the above problems, the present application provides the following technical solutions: a precision positioning device, comprising: a workbench, a fixed box, a circumferential drive component is arranged on the fixed box, a plurality of clamping components are arranged in a ring shape inside the fixed box, a plurality of molds are arranged inside the fixed box, the circumferential drive component is used to drive the clamping component to operate, the clamping component is used to clamp and fix the corresponding mold, the clamping component comprises a center pulley and a movable shaft, the movable shaft can move longitudinally relative to the center pulley, and can also be fixed to the center pulley, the movable shaft has two through notches along its axial direction, and a longitudinal plug-in component is arranged on the center pulley The longitudinal plug-in assembly is used to fix the movable shaft and the center pulley. The longitudinal plug-in assembly includes a longitudinal plug rod. The outer side of the movable shaft is also fixedly sleeved with a longitudinal movable gear. Transverse plug-in assemblies are provided on both sides of the center pulley. The transverse plug-in assembly is used to fix the center pulley. A transverse moving assembly is provided below the center pulley. The transverse moving assembly is used to drive the longitudinal plug-in assembly to operate so that the longitudinal plug rod is vertically inserted into one of the through-notches. A transmission assembly is connected between the transverse plug-in assembly and the transverse moving assembly. A pushing assembly is provided on one of the fixed plates, and the pushing assembly can drive the movable shaft to move longitudinally.

[0008] Preferably, the circumferential drive assembly includes two fixed plates, and the pushing assembly includes two symmetrically arranged electric push rods, which are fixedly arranged on one of the fixed plates. The telescopic end of the electric push rod passes through the corresponding fixed plate and is fixedly connected to a displacement plate, which is rotatably connected to the moving shaft.

[0009] Preferably, the circumferential drive assembly includes a circumferential drive motor fixedly installed at the bottom center of the workbench, the output end of the circumferential drive motor passes through the workbench and the bottom of the fixed box in sequence and is fixedly connected to a central drive gear, the central drive gear is rotatably connected to the inner bottom of the fixed box, the inner bottom of the fixed box is rotatably connected to multiple auxiliary transmission shafts in a ring-shaped manner, the outer side of the auxiliary transmission shaft is fixedly sleeved with a satellite gear, the top of the auxiliary transmission shaft is fixedly connected with a satellite bevel gear, the satellite gear is meshingly connected to the central drive gear, the satellite bevel gears are arranged one by one with the clamping assembly, and the corresponding clamping assembly can be operated when the satellite bevel gears rotate.

[0010] Preferably, the clamping assembly includes two fixed plates fixed to the bottom of the inner part of the fixed box, two double-headed screws are rotatably connected between the two fixed plates, and the two ends of the outer surfaces of the double-headed screws are respectively provided with threads of opposite rotation directions, and the two ends of the double-headed screws are rotatably connected to the corresponding fixed plates, and the outer side of the double-headed screw is fixedly sleeved with a transmission pulley, and the side surface of one of the fixed plates is rotatably connected to a center pulley, and the center pulley is located between the two transmission pulleys, and a transverse transmission belt is connected between the center pulley and the two transmission pulleys, and a movable shaft is provided in the middle of one of the fixed plates, and the movable shaft passes through the corresponding fixed plate, and one end of the movable shaft is fixedly connected to a longitudinal movable bevel gear, and when the longitudinal plug rod is inserted into the through notch away from the satellite bevel gear, the longitudinal movable bevel gear is meshed and connected with the corresponding satellite bevel gear.

[0011] Preferably, the clamping assembly also includes two symmetrically arranged clamping plates and two limit plates. The clamping plates are threadedly connected to the two double-headed screws, and the double-headed screws pass through the clamping plates. The bottom of the limit plates is fixed to the inner bottom of the fixed box. The spacing between the two limit plates on the same clamping assembly is adapted to the mold. The top of the fixed box is annularly provided with multiple placement notches, and the placement notches are arranged one-to-one corresponding to the clamping assemblies.

[0012] Preferably, when the lateral moving component is in operation, it can drive the lateral plug-in component to operate through the transmission component, and the lateral moving component includes two connecting plates fixed to the bottom of the interior of the fixed box, a lateral driving motor is fixedly installed on the side of one of the connecting plates, an output end of the lateral driving motor passes through the corresponding connecting plate and is fixedly connected to an active threaded rod, the other end of the active threaded rod is rotatably connected to the other connecting plate, a lateral moving block is threadedly connected to the active threaded rod, and the active threaded rod passes through the lateral moving block, the bottom of the lateral moving block is slidably connected to the inner bottom of the fixed box, a servo motor is fixedly installed on the top of the lateral moving block, the clamping assembly includes two fixed plates fixed to the bottom of the interior of the fixed box, a limiting body is fixedly connected to the side of one of the fixed plates, a lateral sliding groove is provided on the limiting body, and the output end of the servo motor passes through the lateral sliding groove and is fixedly connected to a lateral moving gear.

[0013] Preferably, the clamping assembly includes two fixed plates fixed at the bottom of the inner part of the fixed box, and the transverse plug-in assembly includes a transverse fixed block fixedly connected to the side of one of the fixed plates, a driven threaded rod is rotatably connected to the transverse fixed block, a transverse plug-in rod is threadedly connected to the driven threaded rod, the driven threaded rod passes through the transverse plug-in rod, and the side of the transverse plug-in rod is slidably connected to the transverse fixed block, and two transverse slot seats are symmetrically fixedly connected to the center pulley, and the transverse slot seats have slots facing the side of the transverse plug-in rod.

[0014] Preferably, the transmission assembly includes a passive pulley, a driving pulley, and a longitudinal transmission belt, the transverse plug-in assembly includes a driven threaded rod, the passive pulley is fixedly sleeved on the outside of the driven threaded rod, the transverse movement assembly includes an active threaded rod, the active pulley is fixedly sleeved on the outside of the active threaded rod, and a longitudinal transmission belt is connected between the active pulley and the passive pulley; the longitudinal plug-in assembly also includes a base plate fixedly connected to the center pulley, a vertical threaded rod is rotatably connected to the base plate, the vertical threaded rod passes through the base plate, a connecting gear is fixedly connected to the bottom end of the vertical threaded rod, the vertical threaded rod is threadedly connected to the longitudinal plug rod, the vertical threaded rod passes through the longitudinal plug rod, and the longitudinal plug rod is slidingly connected to the side of the center pulley. When the transverse movement assembly is running, the transverse movement assembly includes a transverse movement gear, and the transverse movement gear can be meshed with the connecting gear.

[0015] Preferably, the clamping assembly includes two fixed plates fixed at the bottom of the fixed box, wherein a running motor is fixedly installed on the side of one of the fixed plates, and a fixed gear is fixedly connected to the output end of the running motor. When the pushing assembly drives the moving shaft to move longitudinally, the circumferential driving assembly includes a satellite bevel gear, and when the through notch close to the satellite bevel gear moves to the position corresponding to the longitudinal insertion rod, the longitudinal moving gear is meshed and connected with the fixed gear.

[0016] The positioning method for precision mold processing includes the following steps: S1. Place the mold into the corresponding clamping assembly; S2. Start the circular drive assembly, and allow multiple drive clamping assemblies to run simultaneously, and the clamping assemblies clamp and fix the corresponding molds.

[0017] In summary, the technical effects and advantages of the present invention are as follows: 1. In the present invention, each clamping assembly in the device is independently designed and connected to the circumferential drive assembly. Each clamping assembly operates independently when needed without affecting the status of other clamping assemblies. When it is necessary to release the clamping of a certain mold, the lateral drive motor of the lateral moving assembly is started to make the lateral moving gear mesh with the connecting gear. When the lateral moving assembly is in operation, it can drive the lateral plug-in assembly to operate through the transmission assembly. The lateral plug-in assembly fixes the center pulley, and then the output end of the servo motor drives the lateral moving gear to rotate. The longitudinal plug rod is moved out from the through-notch away from the satellite bevel gear, thereby separating the center pulley from the moving shaft, so that the clamping assembly is out of the control of the circumferential drive assembly.

[0018] 2. In the present invention, a pushing assembly is used to drive the movable shaft to move longitudinally, and the through-notch close to the satellite bevel gear is moved to the position corresponding to the longitudinal insertion rod, so that the transverse movable gear and the transverse insertion rod are reset, and the fixed gear drives the longitudinal movable gear to rotate. Through the relevant transmission, the two clamping plates can eventually move away from each other, thereby releasing the clamping of the mold without affecting other molds. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a structural schematic diagram of another perspective of the present invention; Figure 3 It is a schematic diagram of the internal structure of the fixing box of the present invention; Figure 4 It is a schematic diagram of the structure of the clamping assembly of the present invention; Figure 5 It is a structural schematic diagram of the clamping assembly of the present invention from another perspective; Figure 6 It is a structural schematic diagram of the movable shaft of the present invention; Figure 7 It is a partial structural schematic diagram of the present invention; Figure 8 For the present invention Figure 7 The enlarged structural diagram of part A in the middle; Fig. 9 For the present invention Figure 7 The enlarged structural diagram of part B is shown in the figure.

[0021] In the figure: 1, workbench; 2, fixing box; 3, circular drive assembly; 31, circular drive motor; 32, center drive gear; 33, auxiliary transmission shaft; 34, satellite gear; 35, satellite bevel gear; 4, clamping assembly; 41, fixing plate; 42, center pulley; 43, transmission pulley; 44, double-headed screw; 45, clamping plate; 46, limit plate; 47, moving shaft; 471, through notch; 472, annular groove; 48, longitudinal moving gear; 49, longitudinal moving bevel gear; 5, transverse plug-in assembly; 51, transverse fixing block; 52, driven threaded rod ; 53. Horizontal plug rod; 54. Horizontal slot seat; 6. Horizontal moving assembly; 61. Connecting plate; 62. Horizontal drive motor; 63. Horizontal moving block; 64. Servo motor; 65. Horizontal moving gear; 66. Limiting body; 7. Longitudinal plug assembly; 71. Base plate; 72. Vertical threaded rod; 73. Connecting gear; 74. Longitudinal plug rod; 8. Transmission assembly; 81. Passive pulley; 82. Active pulley; 83. Longitudinal transmission belt; 9. Support leg; 10. Mold; 11. Running motor; 12. Fixed gear; 13. Electric push rod; 14. Displacement plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example: Reference Figure 1-Figure 9 A precision positioning device is shown, comprising: a workbench 1, a fixing box 2 is fixedly arranged on the top surface of the workbench 1, a plurality of legs 9 are fixedly connected to the bottom end of the workbench 1, a circumferential drive assembly 3 is arranged on the fixing box 2, a plurality of clamping assemblies 4 are arranged in a ring shape inside the fixing box 2, a plurality of molds 10 are arranged inside the fixing box 2, the circumferential drive assembly 3 is used to drive the clamping assembly 4 to operate, and the clamping assembly 4 is used to clamp and fix the corresponding mold 10.

[0024] The circumferential drive assembly 3 includes a circumferential drive motor 31 fixedly installed at the bottom center of the workbench 1. The output end of the circumferential drive motor 31 passes through the workbench 1 and the bottom of the fixed box 2 in sequence and is fixedly connected to a center drive gear 32. The center drive gear 32 is rotatably connected to the inner bottom of the fixed box 2. The inner bottom of the fixed box 2 is rotatably connected to multiple auxiliary transmission shafts 33. Satellite gears 34 are fixedly sleeved on the outer side of the auxiliary transmission shaft 33. Satellite bevel gears 35 are fixedly connected to the top of the auxiliary transmission shaft 33. The satellite gears 34 are meshed with the center drive gear 32. The satellite bevel gears 35 are arranged one by one corresponding to the clamping assembly 4, and when the satellite bevel gears 35 rotate, the corresponding clamping assembly 4 can be operated.

[0025] Any one of the clamping assemblies 4 can run simultaneously with the other clamping assemblies 4, and any one of the clamping assemblies 4 can also run independently. The clamping assembly 4 includes two fixed plates 41 fixed to the bottom of the inner part of the fixed box 2, and two double-headed screws 44 are rotatably connected between the two fixed plates 41. The two ends of the outer surface of the double-headed screw 44 are respectively provided with threads of opposite rotation directions. The two ends of the double-headed screw 44 are respectively rotatably connected to the corresponding fixed plates 41, and the outer side of the double-headed screw 44 is fixedly sleeved with a transmission pulley 43. The side of one of the fixed plates 41 is rotatably connected to a center pulley 42, and the center pulley 42 is located between the two transmission pulleys 43. A transverse transmission belt is connected between the center pulley 42 and the two transmission pulleys 43. One of the fixed plates 41 A moving shaft 47 is provided in the middle part, and the moving shaft 47 passes through the corresponding fixed plate 41. The moving shaft 47 can move longitudinally relative to the center pulley 42, and can also be fixed to the center pulley 42. One end of the moving shaft 47 is fixedly connected with a longitudinal moving bevel gear 49. The moving shaft 47 has two through-notches 471 along its axial direction. A longitudinal plug-in component 7 is provided on the center pulley 42. The longitudinal plug-in component 7 is used to fix the moving shaft 47 to the center pulley 42. The longitudinal plug-in component 7 includes a longitudinal plug rod 74. When the longitudinal plug rod 74 is inserted into the through-notch 471 away from the satellite bevel gear 35, the longitudinal moving bevel gear 49 is meshed and connected with the corresponding satellite bevel gear 35. The outer side of the moving shaft 47 is also fixedly sleeved with a longitudinal moving gear 48; The clamping assembly 4 also includes two symmetrically arranged clamping plates 45 and two limit plates 46. The clamping plates 45 are threadedly connected to the two double-headed screws 44, and the double-headed screws 44 pass through the clamping plates 45. The bottom of the limit plate 46 is fixed to the inner bottom of the fixed box 2. The spacing between the two limit plates 46 on the same clamping assembly 4 is adapted to the mold 10. The top of the fixed box 2 is annularly provided with multiple placement notches, and the placement notches are arranged one by one corresponding to the clamping assembly 4.

[0026] When it is necessary to make all the clamping components 4 operate at the same time to clamp all the molds 10, the mold 10 is placed between the two corresponding limit plates 46 by placing the notch, the longitudinal insertion rod 74 is inserted into the through notch 471 away from the satellite bevel gear 35, and the moving shaft 47 is fixed to the corresponding center pulley 42, the longitudinal moving bevel gear 49 is in meshing state with the corresponding satellite bevel gear 35, the circumferential drive motor 31 is started, and the output end of the circumferential drive motor 31 drives the center drive gear 32 to rotate, and the center drive gear 32 drives the multiple satellite gears 35 to rotate. 4 rotates, the satellite gear 34 drives the corresponding auxiliary transmission shaft 33 and the satellite bevel gear 35 at the top of the auxiliary transmission shaft 33 to rotate, the satellite bevel gear 35 drives the corresponding longitudinal moving bevel gear 49 to rotate, the longitudinal moving bevel gear 49 drives the moving shaft 47 to rotate, the moving shaft 47 drives the center pulley 42 to rotate, the center pulley 42 drives the two driving pulleys 43 to rotate through the transverse transmission belt, the driving pulley 43 drives the corresponding double-headed screw 44 to rotate, so that the two clamping plates 45 move closer to each other, thereby clamping and fixing the mold 10, as shown in FIG. Figure 4 , Figure 5 As shown, all the molds 10 are fixed at the same time and then the molds 10 can be processed.

[0027] A transverse plug-in assembly 5 is provided on both sides of the center pulley 42. The transverse plug-in assembly 5 is used to fix the center pulley 42 to prevent the center pulley 42 from moving during the movement of the longitudinal plug rod 74, resulting in the longitudinal plug rod 74 being unable to be smoothly inserted into one of the through-notches 471. A transverse moving assembly 6 is provided below the center pulley 42. The transverse moving assembly 6 is used to drive the longitudinal plug-in assembly 7 to operate so that the longitudinal plug rod 74 is vertically inserted into one of the through-notches 471. A transmission assembly 8 is connected between the transverse plug-in assembly 5 and the transverse moving assembly 6. When the transverse moving assembly 6 is in operation, it can drive the transverse plug-in assembly 5 to operate through the transmission assembly 8. A pushing assembly is provided on one of the fixed plates 41, and the pushing assembly can drive the moving shaft 47, the longitudinal moving gear 48, and the longitudinal moving bevel gear 49 to move longitudinally as a whole.

[0028] The lateral movement assembly 6 includes two connecting plates 61 fixed to the inner bottom of the fixed box 2, wherein a lateral drive motor 62 is fixedly installed on the side of one of the connecting plates 61, and the output end of the lateral drive motor 62 passes through the corresponding connecting plate 61 and is fixedly connected to an active threaded rod, and the other end of the active threaded rod is rotatably connected to the other connecting plate 61, and a lateral movement block 63 is threadedly connected to the active threaded rod, and the active threaded rod passes through the lateral movement block 63, and the bottom of the lateral movement block 63 is slidably connected to the inner bottom of the fixed box 2, in order to guide the lateral movement block 63 laterally, and a servo motor 64 is fixedly installed on the top of the lateral movement block 63, and a limiting body 66 is fixedly connected to the side of one of the fixed plates 41, and a lateral slide groove is provided on the limiting body 66, and the output end of the servo motor 64 passes through the lateral slide groove and is fixedly connected to a lateral movement gear 65.

[0029] The transverse plug-in assembly 5 includes a transverse fixing block 51 fixedly connected to the side of one of the fixing plates 41, a driven threaded rod 52 is rotatably connected to the transverse fixing block 51, a transverse plug rod 53 is threadedly connected to the driven threaded rod 52, the driven threaded rod 52 passes through the transverse plug rod 53, and the side of the transverse plug rod 53 is slidably connected to the transverse fixing block 51, the purpose is to guide the transverse plug rod 53 laterally, two transverse slot seats 54 are symmetrically fixedly connected to the center pulley 42, the transverse slot seats 54 are provided with slots facing the sides of the transverse plug rod 53, the outer diameter of the slot gradually decreases toward the inner diameter, and the size of the outer diameter exceeds the size of the end of the transverse plug rod 53, and the diameter of the slot is gradually contracted from the outside to the inside, so that when there is a certain matching error between the slot and the transverse plug rod 53, the transverse plug rod 53 can still be inserted into the slot, thereby improving the convenience of assembly.

[0030] The transmission assembly 8 includes a passive pulley 81, a driving pulley 82, and a longitudinal transmission belt 83. The passive pulley 81 is fixedly sleeved on the outside of the driven threaded rod 52, and the driving pulley 82 is fixedly sleeved on the outside of the driving threaded rod. A longitudinal transmission belt 83 is connected between the driving pulley 82 and the passive pulley 81.

[0031] The longitudinal plug-in assembly 7 also includes a base plate 71 fixedly connected to the center pulley 42, and a vertical threaded rod 72 is rotatably connected to the base plate 71, and the vertical threaded rod 72 passes through the base plate 71. The bottom end of the vertical threaded rod 72 is fixedly connected to a connecting gear 73, and a longitudinal plug rod 74 is threadedly connected to the vertical threaded rod 72, and the vertical threaded rod 72 passes through the longitudinal plug rod 74. The longitudinal plug rod 74 is slidably connected to the side of the center pulley 42. When the transverse moving assembly 6 is running, the transverse moving gear 65 can be meshed and connected with the connecting gear 73.

[0032] A running motor 11 is fixedly installed on the side of one of the fixed plates 41, and the output end of the running motor 11 is fixedly connected to a fixed gear 12. When the pushing assembly drives the moving shaft 47, the longitudinal moving gear 48, and the longitudinal moving bevel gear 49 to move longitudinally as a whole, the longitudinal moving bevel gear 49 is disengaged from the satellite bevel gear 35, and when the through notch 471 close to the satellite bevel gear 35 moves to the position corresponding to the longitudinal insertion rod 74, the longitudinal moving gear 48 is meshed and connected with the fixed gear 12.

[0033] After all the molds 10 are clamped and fixed, during the processing of a certain mold 10, if the mold 10 is damaged due to improper operation and needs to be removed without affecting other molds 10, the transverse drive motor 62 is started, and the output end of the transverse drive motor 62 drives the active threaded rod to rotate, so that the transverse moving block 63, the servo motor 64, and the transverse moving gear 65 move laterally as a whole in the direction close to the center pulley 42 until the transverse moving gear 65 is meshed with the connecting gear 73. The active threaded rod rotates while driving the two active pulleys 82 to rotate. The active pulley 82 drives the passive pulley 81 to rotate through the longitudinal transmission belt 83, and the passive pulley 81 drives The driven threaded rod 52 rotates, causing the two transverse insertion rods 53 to move closer to each other until the transverse insertion rod 53 is inserted into the slot of the transverse slot seat 54 to form an interlocking structure to fix the center pulley 42. Then the servo motor 64 is started, and the output end of the servo motor 64 drives the transverse moving gear 65 to rotate, and the transverse moving gear 65 drives the connecting gear 73 to rotate, and the connecting gear 73 drives the vertical threaded rod 72 to rotate, so that the longitudinal insertion rod 74 moves vertically downward, and the longitudinal insertion rod 74 moves out from the through-notch 471 away from the satellite bevel gear 35, thereby separating the center pulley 42 from the moving shaft 47, and using the pushing assembly to drive the moving shaft 47, the longitudinal moving gear 48, and the longitudinal moving gear 49 to rotate. The movable bevel gear 49 moves longitudinally as a whole, the longitudinal movable bevel gear 49 is disengaged from the satellite bevel gear 35, the through notch 471 close to the satellite bevel gear 35 moves to the position corresponding to the longitudinal insertion rod 74, and the longitudinal movable gear 48 is meshed with the fixed gear 12, and the servo motor 64 is started again, and the output end of the servo motor 64 drives the transverse movable gear 65 to rotate, and the transverse movable gear 65 drives the connecting gear 73 to rotate, so that the longitudinal insertion rod 74 moves vertically upward, thereby allowing the center pulley 42 and the movable shaft 47 to be fixed as a whole again, and the transverse drive motor 62 is started again, so that the transverse movable block 63, the servo motor 64, and the transverse movable gear 65 as a whole move away from the center pulley 42 Move horizontally, the horizontal moving gear 65 disengages from the connecting gear 73, and the two horizontal insertion rods 53 move away from each other until the horizontal insertion rods 53 are reset, and the running motor 11 is started. The output end of the running motor 11 drives the fixed gear 12 to rotate, the fixed gear 12 drives the longitudinal moving gear 48 to rotate, the longitudinal moving gear 48 drives the moving shaft 47 to rotate, the moving shaft 47 drives the center pulley 42 to rotate, the center pulley 42 drives the two transmission pulleys 43 to rotate through the horizontal transmission belt, the transmission pulley 43 drives the corresponding double-headed screw 44 to rotate, so that the two clamping plates 45 move away from each other, thereby releasing the clamping of the mold 10 and taking out the corresponding mold 10.

[0034] The push assembly includes two symmetrically arranged electric push rods 13, which are fixedly arranged on one of the fixed plates 41. The telescopic end of the electric push rod 13 passes through the corresponding fixed plate 41 and is fixedly connected with the displacement plate 14, which is rotatably connected with the moving shaft 47. Specifically, the moving shaft 47 is provided with an annular groove 472, which is located between the longitudinal moving gear 48 and the longitudinal moving bevel gear 49. The displacement plate 14 is provided with a through circular hole, which is adapted to the circular hole of the displacement plate 14, and the circular hole of the displacement plate 14 is slidably matched with the annular groove 472. The specific process of the push assembly driving the moving shaft 47, the longitudinal moving gear 48, and the longitudinal moving bevel gear 49 to move longitudinally as a whole is as follows: the electric push rod 13 is started, the output end of the electric push rod 13 drives the displacement plate 14 to move, and the displacement plate 14 drives the moving shaft 47, the longitudinal moving gear 48, and the longitudinal moving bevel gear 49 to move as a whole.

[0035] The positioning method for precision mold processing includes the following steps: S1, placing the mold 10 into the corresponding clamping assembly 4; S2, start the circular driving assembly 3, and let the multiple driving clamping assemblies 4 run simultaneously, and the clamping assemblies 4 clamp and fix the corresponding molds 10.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A precision positioning device, comprising: A workbench (1), a fixed box (2), a circumferential drive assembly (3) being arranged on the fixed box (2), a plurality of clamping assemblies (4) being arranged in an annular shape inside the fixed box (2), a plurality of molds (10) being arranged inside the fixed box (2), the circumferential drive assembly (3) being used to drive the clamping assembly (4) to operate, the clamping assembly (4) being used to clamp and fix the corresponding mold (10), characterized in that: the clamping assembly (4) comprises a central pulley (42) and a movable shaft (47), the movable shaft (47) being able to move longitudinally relative to the central pulley (42) and also being able to be fixed to the central pulley (42), the movable shaft (47) being provided with two through notches (471) along its axial direction, the central pulley (42) being provided with a longitudinal plug-in assembly (7), the longitudinal plug-in assembly (7) being used to move the movable shaft (47) longitudinally relative to the central pulley (42), and the longitudinal plug-in assembly (7) being used to move the movable shaft (47) longitudinally relative to the central pulley (42). The moving shaft (47) is fixed to the center pulley (42), the longitudinal plug-in assembly (7) includes a longitudinal plug rod (74), the outer side of the moving shaft (47) is also fixedly sleeved with a longitudinal moving gear (48), both sides of the center pulley (42) are provided with transverse plug-in assemblies (5), the transverse plug-in assembly (5) is used to fix the center pulley (42), a transverse moving assembly (6) is provided below the center pulley (42), the transverse moving assembly (6) is used to drive the longitudinal plug-in assembly (7) to operate, so that the longitudinal plug rod (74) is vertically inserted into one of the through-notches (471), a transmission assembly (8) is connected between the transverse plug-in assembly (5) and the transverse moving assembly (6), and a pushing assembly is provided on one of the fixed plates (41), and the pushing assembly can drive the moving shaft (47) to move longitudinally.

2. A precision positioning device according to claim 1, characterized in that: The circumferential drive assembly (3) comprises two fixed plates (41), and the pushing assembly comprises two symmetrically arranged electric push rods (13), the electric push rod (13) being fixedly arranged on one of the fixed plates (41), the telescopic end of the electric push rod (13) passing through the corresponding fixed plate (41) and being fixedly connected to a displacement plate (14), and the displacement plate (14) being rotationally connected to a moving shaft (47).

3. A precision positioning device according to claim 1, characterized in that: The circumferential drive assembly (3) comprises a circumferential drive motor (31) fixedly mounted at the bottom center of the workbench (1); the output end of the circumferential drive motor (31) sequentially passes through the workbench (1) and the bottom of the fixed box (2) and is fixedly connected to a central drive gear (32); the central drive gear (32) is rotatably connected to the inner bottom of the fixed box (2); the inner bottom of the fixed box (2) is rotatably connected to a plurality of auxiliary transmission shafts (33) in an annular manner; satellite gears (34) are fixedly sleeved on the outer sides of the auxiliary transmission shafts (33); satellite bevel gears (35) are fixedly connected to the top ends of the auxiliary transmission shafts (33); the satellite gears (34) are meshingly connected to the central drive gear (32); the satellite bevel gears (35) and the clamping assemblies (4) are arranged one by one in correspondence, and when the satellite bevel gears (35) rotate, the corresponding clamping assemblies (4) can be operated.

4. A precision positioning device according to claim 1, characterized in that: The clamping assembly (4) comprises two fixing plates (41) fixed to the inner bottom of the fixing box (2), two double-ended screws (44) are rotatably connected between the two fixing plates (41), two ends of the outer surface of the double-ended screw (44) are respectively provided with threads of opposite rotation directions, the two ends of the double-ended screw (44) are respectively rotatably connected to the corresponding fixing plates (41), the outer side of the double-ended screw (44) is fixedly sleeved with a transmission pulley (43), the side of one of the fixing plates (41) is rotatably connected to a center pulley (42), and the center pulley (42) is located between the two fixing plates (41). A transverse transmission belt is connected between the central pulley (42) and the two transmission pulleys (43), a moving shaft (47) is arranged in the middle of one of the fixed plates (41), the moving shaft (47) passes through the corresponding fixed plate (41), and one end of the moving shaft (47) is fixedly connected to a longitudinal moving bevel gear (49), and when the longitudinal insertion rod (74) is inserted into the through notch (471) away from the satellite bevel gear (35), the longitudinal moving bevel gear (49) is meshed and connected with the corresponding satellite bevel gear (35).

5. A precision positioning device according to claim 4, characterized in that: The clamping assembly (4) further comprises two symmetrically arranged clamping plates (45) and two limiting plates (46); the clamping plates (45) are both threadedly connected to the two double-headed screws (44), and the double-headed screws (44) penetrate the clamping plates (45); the bottom of the limiting plates (46) is fixed to the inner bottom of the fixing box (2); the spacing between the two limiting plates (46) on the same clamping assembly (4) is adapted to the mold (10); the top of the fixing box (2) is provided with a plurality of placement notches in the shape of a ring, and the placement notches are arranged one-to-one correspondingly to the clamping assemblies (4).

6. A precision positioning device according to claim 1, characterized in that: When the lateral moving assembly (6) is in operation, it can drive the lateral plug-in assembly (5) to operate through the transmission assembly (8). The lateral moving assembly (6) comprises two connecting plates (61) fixed to the inner bottom of the fixing box (2). A lateral driving motor (62) is fixedly mounted on the side of one of the connecting plates (61). The output end of the lateral driving motor (62) passes through the corresponding connecting plate (61) and is fixedly connected to an active threaded rod. The other end of the active threaded rod is rotatably connected to the other connecting plate (61). A lateral moving block (63) is threadedly connected to the active threaded rod. , and the active threaded rod passes through the transverse moving block (63), the bottom of the transverse moving block (63) is slidably connected to the inner bottom of the fixed box (2), a servo motor (64) is fixedly installed on the top of the transverse moving block (63), the clamping assembly (4) comprises two fixed plates (41) fixed to the inner bottom of the fixed box (2), the side of one of the fixed plates (41) is fixedly connected to a limiting body (66), a transverse sliding groove is formed on the limiting body (66), and the output end of the servo motor (64) passes through the transverse sliding groove and is fixedly connected to a transverse moving gear (65).

7. A precision positioning device according to claim 1, characterized in that: The clamping assembly (4) comprises two fixing plates (41) fixed to the inner bottom of the fixing box (2); the transverse plug-in assembly (5) comprises a transverse fixing block (51) fixedly connected to the side of one of the fixing plates (41); a driven threaded rod (52) is rotatably connected to the transverse fixing block (51); a transverse plug-in rod (53) is threadedly connected to the driven threaded rod (52); the driven threaded rod (52) passes through the transverse plug-in rod (53); and the side of the transverse plug-in rod (53) is slidably connected to the transverse fixing block (51); and two transverse slot seats (54) are symmetrically fixedly connected to the central pulley (42); and the transverse slot seats (54) are provided with slots facing the side of the transverse plug-in rod (53).

8. The precision positioning device according to claim 1, characterized in that: The transmission assembly (8) includes a passive pulley (81), a driving pulley (82), and a longitudinal transmission belt (83); the transverse plug-in assembly (5) includes a driven threaded rod (52); the passive pulley (81) is fixedly sleeved on the outside of the driven threaded rod (52); the transverse movement assembly (6) includes a driving threaded rod; the driving pulley (82) is fixedly sleeved on the outside of the driving threaded rod; a longitudinal transmission belt (83) is connected between the driving pulley (82) and the driven pulley (81); the longitudinal plug-in assembly (7) also includes a base plate (71) fixedly connected to the center pulley (42). A vertical threaded rod (72) is rotatably connected to the base plate (71), the vertical threaded rod (72) passes through the base plate (71), a connecting gear (73) is fixedly connected to the bottom end of the vertical threaded rod (72), a longitudinal plug rod (74) is threadedly connected to the vertical threaded rod (72), the vertical threaded rod (72) passes through the longitudinal plug rod (74), the longitudinal plug rod (74) is slidably connected to the side of the center pulley (42), and when the lateral moving assembly (6) is running, the lateral moving assembly (6) includes a lateral moving gear (65), and the lateral moving gear (65) can be meshed and connected with the connecting gear (73).

9. The precision positioning device according to claim 1, characterized in that: The clamping assembly (4) comprises two fixing plates (41) fixed to the inner bottom of the fixing box (2), wherein a running motor (11) is fixedly mounted on the side of one of the fixing plates (41), and the output end of the running motor (11) is fixedly connected to a fixed gear (12). When the pushing assembly drives the moving shaft (47) to move longitudinally, the circumferential driving assembly (3) comprises a satellite bevel gear (35), and when the through notch (471) close to the satellite bevel gear (35) moves to a position corresponding to the longitudinal insertion rod (74), the longitudinal moving gear (48) is meshed and connected with the fixed gear (12).

10. A positioning method for precision mold processing, using a precision positioning device as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1, placing the mold (10) into the corresponding clamping assembly (4); S2, starting the circular driving component (3), allowing the plurality of driving clamping components (4) to operate simultaneously, and the clamping components (4) clamp and fix the corresponding mold (10).

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