A micro-power driven indexing clamping chuck

Abstract

This invention provides a micro-power driven indexing and clamping chuck, including a chuck housing. A dual-power output assembly is connected inside the chuck housing. The power input end of the dual-power output assembly is connected to a micro-power drive servo motor, and the output end of the dual-power output assembly is connected to a workpiece clamping component and a workpiece rotation component. The workpiece clamping component includes a first clamping transmission component and a second clamping transmission component. Both the first and second clamping transmission components are connected to auxiliary clamping components and workpiece clamping components. A self-controlled clutch component enables precise step-by-step power transmission, following a machining logic of clamping before rotation. This step-by-step transmission logic is clear, ensuring the stability and accuracy of the machining process. It improves power utilization efficiency, ensures machining accuracy, achieves higher indexing accuracy and clamping stability, and is suitable for the installation requirements of small, high-precision CNC machining equipment.

Description

Technical Field

[0001] This invention relates to the field of auxiliary equipment for CNC machining equipment, and more specifically, to a micro-power driven indexing and clamping chuck. Background Technology

[0002] Indexing chucks are core positioning and clamping components in CNC machining, and their performance directly determines workpiece machining accuracy, production efficiency, and equipment compatibility. Currently, indexing chucks widely used in the industry are mainly divided into hydraulic / pneumatic driven types and conventional electric driven types.

[0003] Hydraulic and pneumatic driven indexing chucks require external power pump stations, pressure regulating valves, and transmission pipelines. The system integration is extremely low, the installation space is large, and long-term use is prone to leakage and pressure fluctuation problems. Maintenance is cumbersome and costly, the fluid transmission response is slow, the indexing accuracy is poor, it cannot meet the needs of heavy-duty precision machining, and it is energy-intensive and environmentally unfriendly.

[0004] Conventional electrically driven indexing chucks typically use a single jaw for clamping, resulting in insufficient clamping rigidity. This can easily lead to problems such as vibration, deformation, and loosening when handling irregularly shaped or heavy-duty workpieces. Furthermore, the indexing and clamping actions are independent and lack synchronization, making clamping force prone to attenuation during indexing. Additionally, the electrical control components are often externally mounted, making them susceptible to electromagnetic interference during high-speed rotation and prone to wiring loosening. They only provide basic control and lack adaptive adjustment capabilities. Moreover, the existing clamping and rotary indexing actions are controlled by separate mechanisms. Switching between these actions disconnects the control of the other action, potentially causing workpiece slippage during processing and posing a safety hazard.

[0005] Currently, clamping and rotation generally use ordinary servo motors. However, ordinary servo motors are powerful and bulky, making them unsuitable for installation on machine tools used for machining parts. Furthermore, excessive power transmission may damage the clamping device itself, and disassembly and maintenance are difficult. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the above-mentioned traditional technologies and provide a micro-power driven indexing clamping chuck that realizes synchronous linkage between workpiece clamping and rotation, and realizes the clutch state of power transmission required for autonomous control of workpiece rotation.

[0007] The objective of this invention is achieved through the following technical measures: A micro-power driven indexing chuck, characterized in that: it includes a chuck shell, inside which a dual power output assembly is connected; the power input end of the dual power output assembly is connected to a micro-power drive servo motor; the output end of the dual power output assembly is connected to a workpiece clamping component and a workpiece rotating component; the dual power output assembly includes a power drive rod, one end of which is fixedly connected to the output end of the micro-power drive servo motor, and the other end of which is fixedly connected to a power transmission worm gear; the power transmission worm gear meshes with a first drive worm wheel and a second drive worm wheel; the workpiece clamping component includes a first clamping transmission assembly and a second clamping transmission assembly; the first clamping transmission assembly is connected to the upper surface of the first drive worm wheel, and the second clamping transmission assembly is connected to the lower surface of the first drive worm wheel; both the first and second clamping transmission assemblies are connected to auxiliary clamping components and workpiece clamping assemblies. The workpiece rotating component includes a self-controlled clutch assembly, which includes a clutch drive rod. The clutch drive rod is fixedly connected to the upper surface of a second drive worm gear. A clutch drive disc is fixedly connected to the clutch drive rod, and a drive lever is fixedly connected to the upper surface of the clutch drive disc. A first embedding groove is provided on the side of the clutch drive disc. A movable clutch disc is rotatably connected to the clutch drive rod. A driven lever is fixedly connected to the lower surface of the movable clutch disc. The drive lever and the driven lever are engaged. A second embedding groove is provided on the side of the movable clutch disc. A clutch transmission sleeve is rotatably connected to the outer side of the movable clutch disc. A clutch transmission rod is fixedly connected to the upper surface of the clutch transmission sleeve. A locking tongue mounting groove is provided inside the clutch transmission sleeve. One end of a locking tongue spring is fixedly connected to the locking tongue mounting groove, and the other end of the locking tongue spring is fixedly connected to an embedded locking tongue. The embedded locking tongue is engaged with the first embedding groove and the second embedding groove, respectively.

[0008] As an improvement: the workpiece clamping assembly includes a workpiece clamping screw, a lifting adjustment thread is fixedly connected to the outside of the workpiece clamping screw, a plurality of lifting limit sliding grooves are provided on the lifting adjustment thread, a clamping drive worm gear is connected to the workpiece clamping screw through the lifting adjustment thread, a clamping mounting plate is fixedly connected to the end of the workpiece clamping screw, and three workpiece limit plates are fixedly connected to the lower surface of the clamping mounting plate.

[0009] As an improvement: the auxiliary clamping assembly includes an auxiliary drive worm gear, the auxiliary drive worm gear is internally threaded with an auxiliary clamping screw, and the end of the auxiliary clamping screw is fixedly connected with an auxiliary clamping plate.

[0010] As an improvement: the first clamping transmission assembly includes a first transmission rod, one end of which is fixedly connected to the upper surface of a first driving worm gear, and the other end of which is drively connected to the input end of a first reversing gearbox. The output end of the first reversing gearbox is connected to a first clamping drive rod, and a first clamping drive worm and a first auxiliary clamping worm are fixedly connected to the first clamping drive rod. The first clamping drive worm meshes with the clamping drive worm gear, and the first auxiliary clamping worm meshes with the auxiliary drive worm gear.

[0011] As an improvement: the second clamping transmission assembly includes a second transmission rod, one end of which is fixedly connected to the upper surface of the second drive worm gear, and the other end of which is drively connected to the input end of the second reversing gearbox. The output end of the second reversing gearbox is connected to a second clamping drive rod, and a second clamping drive worm and a second auxiliary clamping worm are fixedly connected to the second clamping drive rod. The second clamping drive worm meshes with the clamping drive worm gear, and the second auxiliary clamping worm meshes with the auxiliary drive worm gear.

[0012] As an improvement: the end of the clutch transmission rod away from the clutch transmission sleeve is connected to the input end of the rotary reversing gearbox, the output end of the rotary reversing gearbox is connected to the rotary drive rod, the rotary drive rod is fixedly connected to the rotary drive worm, the rotary drive worm is meshed with the workpiece rotating worm wheel, the workpiece rotating worm wheel is sleeved with the workpiece clamping screw, the workpiece rotating worm wheel is fixedly connected to the fixed limit block, and the fixed limit block is slidably connected to the lifting limit slide groove.

[0013] As an improvement: one side surface of the first embedding groove is set as a power groove edge, the other side surface of the first embedding groove is a disengagement slope, one side surface of the second embedding groove is set as a transmission groove edge, and the other side of the second embedding groove is set as a separation slope.

[0014] Due to the adoption of the above technical solution, the advantages of the present invention compared with the prior art are: This invention achieves precise step-by-step power transmission through a self-controlled clutch assembly, strictly adhering to the machining logic of "clamping first, then rotating," completely resolving the core pain point of conventional electric-driven indexing chucks where "clamping and rotation actions are independent and lack synchronous linkage." The step-by-step transmission logic is clear, and the actions are smoothly connected, ensuring the stability and accuracy of the machining process. Leveraging the flexible engagement characteristics of the self-controlled clutch assembly, after workpiece clamping, the workpiece clamping and rotating components can rotate synchronously. This overcomes the technical limitations of existing indexing chucks where clamping and rotation cannot be synchronized, significantly shortening the machining cycle time, improving production efficiency, ensuring indexing accuracy in heavy-duty precision machining scenarios, and meeting the needs of high-end CNC cutting. The self-controlled clutch assembly has a compact structure, high integration, no leakage or electromagnetic interference risks, strong long-term stability, and requires no complex maintenance procedures, significantly reducing equipment maintenance costs and energy consumption. Utilizing the "worm gear-double worm wheel" structure of the dual-power output assembly, a single servo motor drives dual power output. Combined with the power transmission control of the self-controlled clutch assembly, power distribution for clamping and rotation can be achieved without an additional power source, realizing micro-power drive. The single-motor drive design greatly simplifies the equipment structure and reduces power loss. Simultaneously, the precise power transmission control of the self-controlled clutch assembly ensures power is distributed as needed. The design features a concentrated power supply to ensure clamping force during clamping and a distributed power supply for precise indexing during rotation. This improves power utilization efficiency and ensures machining accuracy, achieving higher indexing precision and clamping stability. It also boasts lower energy consumption, a more compact structure, and better suitability for the installation requirements of miniaturized, high-precision CNC machining equipment. The micro-power drive servo motor, with its low power consumption, is small in size and can be easily concealed inside the machine tool. It provides a low-power drive force without affecting the machine tool's operation. This low-power drive force is amplified and transmitted through the dual-power output component. Although this application follows a clamping-then-rotating process, the power transmission to the workpiece clamping component is not interrupted during rotation. Therefore, the clamping action remains stable and secure during rotation, preventing loosening and ensuring stability and safety during machining. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the present invention.

[0017] Figure 3 This is a schematic diagram of the connection structure of the workpiece clamping component in this invention.

[0018] Figure 4 yes Figure 3 A partial structural diagram of the workpiece clamping assembly.

[0019] Figure 5 yes Figure 2 Exploded view of the automatic clutch assembly.

[0020] Figure 6 yes Figure 5 A bottom-view three-dimensional structural diagram of the automatic clutch assembly.

[0021] Figure 7 yes Figure 2 A three-dimensional structural diagram of the rotating worm gear in the workpiece.

[0022] In the diagram: 1. Chuck housing; 2. Micro-power drive servo motor; 3. Dual power output assembly; 31. Power drive rod; 32. Power transmission worm gear; 33. First drive worm wheel; 34. Second drive worm wheel; 4. Workpiece clamping component; 41. First clamping transmission assembly; 411. First transmission rod; 412. First reversing gearbox; 413. First clamping drive rod; 414. First clamping drive worm gear; 415. First auxiliary clamping worm gear; 42. Second clamping transmission assembly; 421. Second transmission rod; 422. Second reversing gearbox; 423. Second clamping drive rod; 424. Second clamping drive worm gear; 425. Second auxiliary clamping worm gear; 43. Workpiece clamping assembly; 431. Workpiece clamping screw; 432. Lifting adjustment thread; 433. Lifting limit slide; 434. Clamping drive worm gear; 435. Clamping mounting bracket. Mounting plate; 436. Workpiece limiting plate; 44. Auxiliary clamping assembly; 441. Auxiliary clamping screw; 442. Auxiliary drive worm gear; 443. Auxiliary clamping plate; 5. Workpiece rotating component; 51. Self-controlled clutch assembly; 511. Clutch drive rod; 512. Clutch drive disc; 5121. Drive lever; 5122. First embedded groove; 5123. Power groove edge; 5124. Unengaged inclined surface; 513. Movable clutch 5131. Driven lever; 5132. Second embedded groove; 5133. Transmission groove edge; 5134. Separation slope; 514. Clutch transmission sleeve; 5141. Lock tongue mounting groove; 5142. Lock tongue spring; 5143. Embedded lock tongue; 515. Clutch transmission rod; 52. Rotation reversing gearbox; 53. Rotation drive rod; 54. Rotation drive worm gear; 55. Workpiece rotation worm wheel; 56. Fixed limit block. Detailed Implementation

[0023] Example: Figures 1 to 7As shown, a micro-power driven indexing chuck includes a chuck housing 1. A dual-power output assembly 3 is connected inside the chuck housing 1. The power input end of the dual-power output assembly 3 is connected to a micro-power drive servo motor 2. The output end of the dual-power output assembly 3 is connected to a workpiece clamping component 4 and a workpiece rotating component 5. The dual-power output assembly 3 includes a power drive rod 31. One end of the power drive rod 31 is fixedly connected to the output end of the micro-power drive servo motor 2, and the other end of the power drive rod 31 is fixedly connected to a power transmission worm gear 32. The power transmission worm gear 32 is meshed with a first drive worm wheel 33 and a second drive worm wheel 34. The workpiece clamping component 4 includes a first clamping transmission assembly 41 and a second clamping transmission assembly 42. The first clamping transmission assembly 41 is connected to the upper surface of the first drive worm wheel 33, and the second clamping transmission assembly 42 is connected to the lower surface of the first drive worm wheel 33. Both the first clamping transmission assembly 41 and the second clamping transmission assembly 42 are connected to an auxiliary clamping assembly 44 and a workpiece clamping assembly 43.

[0024] The micro-power drive servo motor 2 is designed to be a micro-power drive, which has low power and therefore a small size. This makes it easy to hide and install inside the machine tool, providing a small driving force without affecting the use of the machine tool itself. This small driving force can be amplified and transmitted through the dual power output component 3.

[0025] The dual power output component 3 can transmit the power output from the micro-power drive servo motor 2 to the first drive worm gear 33 and the second drive worm gear 34 through the power transmission worm 32, thereby realizing single input and dual output. The first drive worm gear 33 and the second drive worm gear 34 are symmetrically arranged on both sides of the power transmission worm 32 to achieve synchronous rotation. Because the structure is symmetrical, the force is even, which can effectively avoid the phenomenon of uneven load during power transmission.

[0026] The workpiece rotating component 5 includes a self-controlled clutch assembly 51, which includes a clutch drive rod 511. The clutch drive rod 511 is fixedly connected to the upper surface of the second drive worm gear 34. A clutch drive disc 512 is fixedly connected to the clutch drive rod 511. A drive lever 5121 is fixedly connected to the upper surface of the clutch drive disc 512. A first embedded groove 5122 is provided on the side of the clutch drive disc 512. A movable clutch disc 513 is rotatably connected to the clutch drive rod 511. A driven lever 5131 is fixedly connected to the lower surface of the movable clutch disc 513. The drive lever 5121 and... Driven paddle 5131 is connected in cooperation. The movable clutch disc 513 has a second embedded groove 5132 on its side. The outer side of the movable clutch disc 513 is rotatably connected to a clutch transmission sleeve 514. The upper surface of the clutch transmission sleeve 514 is fixedly connected to a clutch transmission rod 515. The clutch transmission sleeve 514 has a latch mounting groove 5141. One end of a latch spring 5142 is fixedly connected in the latch mounting groove 5141. The other end of the latch spring 5142 is fixedly connected to an embedded latch 5143. The embedded latch 5143 is connected in cooperation with the first embedded groove 5122 and the second embedded groove 5132 respectively.

[0027] The clutch drive lever 511 rotates continuously thanks to the power provided by the second drive worm gear 34. During this rotation, the clutch drive lever 511 drives the clutch drive disc 512 to rotate synchronously. At this time, the drive block 5121 on the upper surface of the clutch drive disc 512 rotates accordingly. Both the drive block 5121 and the driven block 5131 are located within an annular range of the same radius from the axis of the clutch drive lever 511. When the drive block 5121 rotates to a certain position, it will contact the driven block 5131, thereby engaging the clutch drive... When disc 512 continues to rotate, it drives the movable clutch disc 513 to rotate. When the first embedding groove 5122 and the second embedding groove 5132 rotate to the same position, the embedding locking tongue 5143 extends under the action of the locking tongue spring 5142 and gets into the first embedding groove 5122 and the second embedding groove 5132. This enables the clutch drive rod 511 to drive the clutch transmission sleeve 514 to rotate, which in turn drives the clutch transmission sleeve 514 to drive the clutch transmission rod 515 to rotate, thereby realizing the power transmission of the workpiece rotating component 5.

[0028] The workpiece clamping assembly 43 includes a workpiece clamping screw 431. A lifting adjustment thread 432 is fixedly connected to the outer side of the workpiece clamping screw 431. Multiple lifting limit grooves 433 are provided on the lifting adjustment thread 432. A clamping drive worm gear 434 is connected to the workpiece clamping screw 431 through the lifting adjustment thread 432. A clamping mounting plate 435 is fixedly connected to the end of the workpiece clamping screw 431. Three workpiece limit plates 436 are fixedly connected to the lower surface of the clamping mounting plate 435.

[0029] The auxiliary clamping assembly 44 includes an auxiliary drive worm gear 442, which is internally threaded with an auxiliary clamping screw 441. An auxiliary clamping plate 443 is fixedly connected to the end of the auxiliary clamping screw 441. Because traditional valve parts have large flanges, the auxiliary clamping plate 443 is used to clamp and fix the flange of the part in order to better ensure the stability of the workpiece during processing.

[0030] The first clamping transmission assembly 41 includes a first transmission rod 411. One end of the first transmission rod 411 is fixedly connected to the upper surface of the first driving worm gear 33, and the other end of the first transmission rod 411 is drively connected to the input end of the first reversing gearbox 412. The output end of the first reversing gearbox 412 is connected to a first clamping drive rod 413. A first clamping drive worm 414 and a first auxiliary clamping worm 415 are fixedly connected to the first clamping drive rod 413. The first clamping drive worm 414 is meshed with the clamping drive worm gear 434, and the first auxiliary clamping worm 415 is meshed with the auxiliary drive worm gear 442. The first transmission rod 411 transmits power from the first driving worm gear 33 to the first reversing gearbox 412. After reversing through the first reversing gearbox 412, the power is transmitted to the first clamping drive rod 413, thereby causing the first clamping drive rod 413 to drive the first clamping drive worm 414 and the first auxiliary clamping worm 415.

[0031] The second clamping transmission assembly 42 includes a second transmission rod 421. One end of the second transmission rod 421 is fixedly connected to the upper surface of the second drive worm gear 34, and the other end of the second transmission rod 421 is drively connected to the input end of the second reversing gearbox 422. The output end of the second reversing gearbox 422 is connected to a second clamping drive rod 423. A second clamping drive worm 424 and a second auxiliary clamping worm 425 are fixedly connected to the second clamping drive rod 423. The second clamping drive worm 424 is meshed with the clamping drive worm gear 434, and the second auxiliary clamping worm 425 is meshed with the auxiliary drive worm gear 442. The power on the second drive worm gear 34 is transmitted to the second reversing gearbox 422 through the second transmission rod 421. After the power is reversed by the second reversing gearbox 422, it is output to the second clamping drive rod 423, thereby causing the second clamping drive rod 423 to drive the second clamping drive worm 424 and the second auxiliary clamping worm 425 to rotate.

[0032] Because both the second transmission rod 421 and the first transmission rod 411 are connected to the upper surface of the first drive worm gear 33, and the rotation of the second transmission rod 421 and the first transmission rod 411 is in the same direction, after a reversal through the first reversing gearbox 412 and the second reversing gearbox 422, the first clamping drive rod 413 and the second clamping drive rod 423 also rotate in the same direction. When the drive clamping worm gear 434 is driven, because the threads on the workpiece clamping screw 431 rotate in different directions, the clamping mounting plate 435 can move towards the center simultaneously, thereby clamping the workpiece.

[0033] The clutch transmission rod 515 is connected to the input end of the rotary reversing gearbox 52 at the end away from the clutch transmission sleeve 514. The output end of the rotary reversing gearbox 52 is connected to the rotary drive rod 53. The rotary drive rod 53 is fixedly connected to the rotary drive worm 54. The rotary drive worm 54 is meshed with the workpiece rotating worm wheel 55. The workpiece rotating worm wheel 55 is sleeved with the workpiece clamping screw 431. A fixed limiting block 56 is fixedly connected inside the workpiece rotating worm wheel 55. The fixed limiting block 56 is slidably connected to the lifting limiting slide groove 433.

[0034] The clutch transmission rod 515 transmits power to the rotary reversing gearbox 52. After the rotary reversing gearbox 52 reverses the power transmission, the power is output through the rotary drive rod 53, which drives the rotary drive worm 54 to rotate, thereby driving the workpiece rotating worm wheel 55 to rotate. Because the workpiece rotating worm wheel 55 is equipped with a fixed limit block 56, and the fixed limit block 56 is connected to the lifting limit slide groove 433, it can drive the workpiece clamping screw 431 to rotate, thereby realizing the rotation of the workpiece. It follows the working process of clamping first and then rotating. However, during the rotation process, the power transmission with the workpiece clamping component 4 is not disconnected. Therefore, the clamping action remains stable and firm during the rotation process, and there will be no situation where the clamping comes loose during the rotation, ensuring the stability and safety of the processing process.

[0035] One side surface of the first embedding groove 5122 is configured as a power groove edge 5123, and the other side surface of the first embedding groove 5122 is configured as a disengagement slope 5124. One side surface of the second embedding groove 5132 is configured as a transmission groove edge 5133, and the other side of the second embedding groove 5132 is configured as a separation slope 5134.

[0036] The power groove edge 5123 of the first embedding groove 5122 is perpendicular to the tangential direction of the clutch drive disc 512, and the disengagement slope 5124 is set at a 30° angle to the tangential direction. The transmission groove edge 5133 of the second embedding groove 5132 is perpendicular to the tangential direction of the movable clutch disc 513, and the separation slope 5134 on the other side is set at a 30° angle to the tangential direction. When the first embedding groove 5122 and the second embedding groove 5132 are in the same position, only when the power groove edge 5123 and the transmission groove edge 5133 are collinear can the embedding locking tongue 5143 be inserted and the clutch drive disc 512 and the clutch transmission sleeve 514 rotate synchronously. When it is necessary to desynchronize, it is only necessary to reverse the clutch drive disc 512 so that the embedding locking tongue 5143 can be inserted. Under the action of the disengagement ramp 5124 and the separation ramp 5134, the clutch drives the clutch disc 512 and the clutch drives the clutch disc 513. The clutch disc 512 has two first embedding grooves 5122 and the power groove edges 5123 of the two first embedding grooves 5122 are located on one side. The clutch disc 513 has two second embedding grooves 5132 and the transmission groove edges 5133 of the two second embedding grooves 5132 are located on one side. When the power groove edge 5123 and the separation ramp 5134 are in the same position, the locking tongue 5143 will not be engaged in the first embedding groove 5122 and the second embedding groove 5132 at the same time. Thus, the self-controlled clutch assembly 51 can achieve both forward and reverse power output.

[0037] In this application, the reduction ratio between the first driving worm gear 33 and the power transmission worm 32 is 1:35, the reduction ratio between the second driving worm gear 34 and the power transmission worm 32 is 1:35, the reduction ratio between the clamping driving worm gear 434 and the first clamping driving worm 414 is 1:35, the reduction ratio between the clamping driving worm gear 434 and the second clamping driving worm 424 is 1:35, the reduction ratio between the auxiliary driving worm gear 442 and the first auxiliary clamping worm 415 is 1:35, the reduction ratio between the auxiliary driving worm gear 442 and the second auxiliary clamping worm 425 is 1:35, and the reduction ratio between the workpiece rotating worm gear 55 and the rotating driving worm 54 is 1:35. This worm gear reduction transmission enables the micro-power drive servo motor 2 to output a larger torque, thereby increasing the transmission power and ensuring a stable and smooth transmission process.

[0038] Working principle: The output end of the micro-power drive servo motor 2 outputs power, which is transmitted to the power transmission worm gear 32 through the power drive rod 31. The power transmission worm gear 32 is connected to the first drive worm wheel 33 and the second drive worm wheel 34 respectively, and transmits the power to the workpiece clamping component 4 and the workpiece rotating component 5 respectively.

[0039] The micro-power drive servo motor 2 rotates forward, driving the first drive worm gear 33 to rotate, which in turn drives the first transmission rod 411 and the second transmission rod 421. The power is transmitted to the first clamping drive rod 413 and the second clamping drive rod 423 after being reversed by the first reversing gear box 412 and the second reversing gear box 422. The first clamping drive worm 414 and the second clamping drive worm 424 both drive the clamping drive worm gear 434 to rotate, thereby causing one workpiece clamping screw 431 to move downward and the other workpiece clamping screw to move upward, so that the two clamping mounting plates 435 move closer to each other, and the workpiece limiting plate 436 clamps the workpiece.

[0040] After the workpiece is clamped, the flange at one end of the workpiece is processed. When the workpiece needs to be rotated, the micro-power drive servo motor 2 reverses, causing the clutch drive rod 511 to drive the clutch drive disc 512 to reverse, causing the drive block 5121 and the driven block 5131 to move, so that the first embedding groove 5122 and the second embedding groove 5132 are in the same position, and the power groove edge 5123 and the transmission groove edge 5133 are in the same position. At this time, the locking tongue spring 5142 drives the embedding... The locking tongue 5143 is inserted into the first embedding groove 5122 and the second embedding groove 5132. The micro-power drive servo motor 2 starts to rotate forward, causing the clutch drive rod 511 to drive the clutch transmission rod 515 to rotate. The power is transmitted to the rotation drive rod 53 through the rotation reversing gear box 52, causing the rotation drive worm 54 to drive the workpiece rotation worm wheel 55 to rotate. Through the fixed limit block 56 and the lifting limit slide 433, the workpiece clamping screw 431 is driven to rotate, thereby driving the clamping mounting plate 435 to rotate.

[0041] After processing is completed, the micro-power drive servo motor 2 reverses, driving the first drive worm gear 33 to reverse, thereby causing the two workpiece clamping screws 431 to move away from each other, causing the clamping mounting plate 435 to move, thereby causing the workpiece limiting plate 436 to separate from the processed workpiece.

Claims

1. A micro-power driven indexing clamping chuck, characterized in that: The chuck housing (1) includes a dual power output assembly (3) connected inside the chuck housing (1). The power input end of the dual power output assembly (3) is connected to a micro-power drive servo motor (2). The output end of the dual power output assembly (3) is connected to a workpiece clamping component (4) and a workpiece rotating component (5). The dual power output assembly (3) includes a power drive rod (31). One end of the power drive rod (31) is fixedly connected to the output end of the micro-power drive servo motor (2), and the other end of the power drive rod (31) is fixedly connected to a power transmission worm gear (32). 2) The first drive worm gear (33) and the second drive worm gear (34) are meshed together. The workpiece clamping component (4) includes a first clamping transmission assembly (41) and a second clamping transmission assembly (42). The first clamping transmission assembly (41) is connected to the upper surface of the first drive worm gear (33), and the second clamping transmission assembly (42) is connected to the lower surface of the first drive worm gear (33). The first clamping transmission assembly (41) and the second clamping transmission assembly (42) are each connected to an auxiliary clamping assembly (44) and a workpiece clamping assembly (43). The workpiece rotating component (5) includes a self-controlled clutch assembly (51).

2. The micro-power driven indexing clamping chuck according to claim 1, characterized in that: The self-controlled clutch assembly (51) includes a clutch drive rod (511), which is fixedly connected to the upper surface of the second drive worm gear (34). A clutch drive disc (512) is fixedly connected to the clutch drive rod (511), and a drive lever (5121) is fixedly connected to the upper surface of the clutch drive disc (512). A first embedded groove (5122) is provided on the side of the clutch drive disc (512). A movable clutch disc (513) is rotatably connected to the clutch drive rod (511), and a driven lever (5131) is fixedly connected to the lower surface of the movable clutch disc (513). The drive lever (5121) and the driven lever (5131) are matched. The movable clutch disc (513) is provided with a second embedded groove (5132) on its side. A clutch transmission sleeve (514) is rotatably connected to the outer side of the movable clutch disc (513). A clutch transmission rod (515) is fixedly connected to the upper surface of the clutch transmission sleeve (514). A lock tongue mounting groove (5141) is provided inside the clutch transmission sleeve (5141). One end of a lock tongue spring (5142) is fixedly connected inside the lock tongue mounting groove (5141). The other end of the lock tongue spring (5142) is fixedly connected to an embedded lock tongue (5143). The embedded lock tongue (5143) is respectively engaged and connected with the first embedded groove (5122) and the second embedded groove (5132).

3. The micro-power driven indexing clamping chuck according to claim 2, characterized in that: The workpiece clamping assembly (43) includes a workpiece clamping screw (431), a lifting adjustment thread (432) is fixedly connected to the outside of the workpiece clamping screw (431), a plurality of lifting limit slide grooves (433) are provided on the lifting adjustment thread (432), a clamping drive worm gear (434) is connected to the workpiece clamping screw (431) through the lifting adjustment thread (432), a clamping mounting plate (435) is fixedly connected to the end of the workpiece clamping screw (431), and three workpiece limit plates (436) are fixedly connected to the lower surface of the clamping mounting plate (435).

4. The micro-power driven indexing clamping chuck according to claim 3, characterized in that: The auxiliary clamping assembly (44) includes an auxiliary drive worm gear (442), which is internally threaded with an auxiliary clamping screw (441), and an auxiliary clamping plate (443) is fixedly connected to the end of the auxiliary clamping screw (441).

5. A micro-power driven indexing clamping chuck according to claim 4, characterized in that: The first clamping transmission assembly (41) includes a first transmission rod (411), one end of which is fixedly connected to the upper surface of the first drive worm gear (33), and the other end of which is connected to the input end of the first reversing gearbox (412). The output end of the first reversing gearbox (412) is connected to a first clamping drive rod (413). A first clamping drive worm (414) and a first auxiliary clamping worm (415) are fixedly connected to the first clamping drive rod (413). The first clamping drive worm (414) is meshed with the clamping drive worm gear (434), and the first auxiliary clamping worm (415) is meshed with the auxiliary drive worm gear (442).

6. A micro-power driven indexing clamping chuck according to claim 4, characterized in that: The second clamping transmission assembly (42) includes a second transmission rod (421). One end of the second transmission rod (421) is fixedly connected to the upper surface of the second drive worm gear (34). The other end of the second transmission rod (421) is connected to the input end of the second reversing gearbox (422). The output end of the second reversing gearbox (422) is connected to a second clamping drive rod (423). A second clamping drive worm (424) and a second auxiliary clamping worm (425) are fixedly connected to the second clamping drive rod (423). The second clamping drive worm (424) is meshed with the clamping drive worm gear (434), and the second auxiliary clamping worm (425) is meshed with the auxiliary drive worm gear (442).

7. A micro-power driven indexing clamping chuck according to claim 3, characterized in that: The clutch transmission rod (515) is connected to the input end of the rotary reversing gearbox (52) at the end away from the clutch transmission sleeve (514). The output end of the rotary reversing gearbox (52) is connected to the rotary drive rod (53). The rotary drive rod (53) is fixedly connected to the rotary drive worm (54). The rotary drive worm (54) is meshed with the workpiece rotating worm wheel (55). The workpiece rotating worm wheel (55) is sleeved with the workpiece clamping screw (431). A fixed limiting block (56) is fixedly connected inside the workpiece rotating worm wheel (55). The fixed limiting block (56) is slidably connected to the lifting limiting slide groove (433).

8. A micro-power driven indexing clamping chuck according to claim 2, characterized in that: One side surface of the first embedding groove (5122) is configured as a power groove edge (5123), and the other side surface of the first embedding groove (5122) is configured as a disengagement slope (5124). One side surface of the second embedding groove (5132) is configured as a transmission groove edge (5133), and the other side of the second embedding groove (5132) is configured as a separation slope (5134).

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