A server structure processing chuck

Abstract

The utility model relates to server processing equipment technical field, concretely is a kind of server structure processing chuck, the inner side of clamping plate is fixedly arranged clamping guide rail, the middle part of clamping plate outside is fixedly arranged moving block, the bottom end of moving block is inserted into the inside of first sliding slot and is slidably connected with first sliding slot, the front side of processing station is fixedly arranged first motor, and the output of first motor is equipped with the rotating shaft of through first sliding slot, the first lead screw of two reverse thread structures is symmetrically arranged on rotating shaft, the front and back and left and right four sides of server workpiece are acted on by the joint action of the multiple components such as clamping plate, clamping guide rail, clamping block, frame of this processing chuck, compared with the mode of only clamping through bottom in prior art, contact area is greatly increased, so that clamping force distribution is more uniform, effectively avoid the case that server workpiece appears slight shaking or displacement in subsequent processing process, significantly improve the stability and processing accuracy of processing.

Description

Technical Field

[0001] This utility model relates to the field of servo processing equipment technology, specifically a servo structure processing chuck. Background Technology

[0002] In the machining process of servo structures, stable clamping is a key step to ensure machining accuracy. As an important electronic device, servo machines typically adopt a rectangular box structure design. While this structure provides good capacity, it also places high demands on clamping and fixing during machining. During the machining process, the servo machine needs to be clamped and fixed before wiring and other processing are performed on its top.

[0003] Currently, the industry commonly uses chucks to clamp and fix servos. The working method is to apply clamping force to the bottom of the servo through multiple clamping blocks to achieve fixation. However, in practical applications, it has been found that when the servo size is large, the contact area between the clamping blocks of the existing chuck and the bottom of the servo is extremely small. This small contact area will lead to uneven distribution of clamping force, which can easily cause slight shaking or displacement of the servo during subsequent processing, seriously affecting the stability of processing and the final processing accuracy, and causing inconvenience to the production and manufacturing of servos. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a server-structured machining chuck.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a servo-structured machining chuck, including a machining table and a control chassis. The control chassis is installed on the front side of the machining table. Two clamping plates and a first slide groove are symmetrically arranged at the front and back of the upper end of the machining table. A clamping guide rail is fixedly arranged on the inner side of the clamping plate. A moving block is fixedly arranged in the middle part of the outer side of the clamping plate. The bottom end of the moving block is inserted into the first slide groove and slidably connected with the first slide groove. A first motor is fixedly arranged on the front side of the machining table. The output end of the first motor is provided with a rotating shaft that passes through the first slide groove. Two first lead screws with reverse thread structure are symmetrically arranged on the rotating shaft. The two first lead screws pass through the two moving blocks respectively and are threadedly connected to the moving blocks.

[0008] The upper end of the processing table is symmetrically provided with two clamping blocks and a second sliding groove. The lower end of the clamping block is provided with a slider that passes through the second sliding groove and is slidably connected to the second sliding groove. The lower end of the slider is fixedly provided with a bottom block. A second motor is fixedly provided on one side of the processing table. The output end of the second motor is provided with a second rotating shaft. Two second lead screws with reverse thread structure are symmetrically provided on the second rotating shaft. The two second lead screws pass through the two bottom blocks respectively and are threadedly connected to the bottom blocks.

[0009] The control box is connected to the first motor and the second motor via electrical signals.

[0010] To make the servo workpiece more securely clamped, the present invention includes the following improvements: two slots and a frame are symmetrically arranged on both sides of the clamping block; a support rod is provided on the side of the frame near the clamping block and inserted into the slot; the support rod is slidably connected to the clamping block; the frame is penetrated by the clamping guide rail and is slidably connected to the clamping guide rail; the inner side of the frame is flush with the inner side of the clamping block; and the frame and the support rod are an integrated structure.

[0011] Furthermore, an improvement of this utility model is that the cross-sections of both the first and second sliding grooves are rectangular.

[0012] Furthermore, an improvement of this utility model is that both the first motor and the second motor are servo motors.

[0013] To improve the stability of the frame during use, the present invention features an improvement in that the cross-section of the clamping guide rail is T-shaped.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, the present invention provides a server-structured machining chuck, which has the following advantages:

[0016] Stable and secure clamping: This machining chuck uses multiple components such as clamping plates, clamping guides, clamping blocks, and frames to work together on the four sides of the servo workpiece. Compared with the existing method of clamping only from the bottom, the contact area is greatly increased, making the clamping force distribution more uniform. This effectively avoids slight shaking or displacement of the servo workpiece during subsequent processing, and significantly improves the stability and accuracy of the machining.

[0017] High versatility: The first motor drives the first lead screw to rotate, causing the moving block to slide the clamping plate and clamping guide rail within the first slide groove. Simultaneously, the second motor drives the second lead screw to rotate, causing the bottom block to slide the slider and clamping block within the second slide groove. This allows for adjustment of the clamping range according to different specifications of servo workpieces. Furthermore, the support rods on the frame slide within the empty slots of the clamping blocks, further accommodating the clamping requirements of workpieces of different sizes, making it suitable for processing various specifications of servo workpieces. Attached Figure Description

[0018] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a second-view perspective three-dimensional structural diagram of the present invention;

[0020] Figure 3 This utility model Figure 1 Side view;

[0021] Figure 4 This utility model Figure 1 A magnified schematic diagram of the partial structure at point A in the middle;

[0022] In the diagram: 1. Machining table; 2. Clamping plate; 3. Clamping guide rail; 4. Moving block; 5. First slide rail; 6. First motor; 7. First lead screw; 8. Clamping block; 9. Empty slot; 10. Support rod; 11. Frame; 12. Second slide rail; 13. Slider; 14. Bottom block; 15. Second motor; 16. Second rotating shaft; 17. Second lead screw; 18. Control box. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-4 This utility model discloses a servo-structured machining chuck, including a machining table 1 and a control box 18. The control box 18 is installed on the front side of the machining table 1. Two clamping plates 2 and a first slide groove 5 are symmetrically arranged at the front and back of the upper end of the machining table 1. A clamping guide rail 3 is fixedly arranged on the inner side of the clamping plate 2. A moving block 4 is fixedly arranged in the middle part of the outer side of the clamping plate 2. The bottom end of the moving block 4 is inserted into the first slide groove 5 and slidably connected with the first slide groove 5. A first motor 6 is fixedly arranged on the front side of the machining table 1. The output end of the first motor 6 is provided with a rotating shaft that passes through the first slide groove 5. Two first lead screws 7 with reverse thread structure are symmetrically arranged on the rotating shaft. The two first lead screws 7 pass through the two moving blocks 4 respectively and are threadedly connected to the moving blocks 4.

[0025] The upper end of the processing table 1 is symmetrically provided with two clamping blocks 8 and a second slide groove 12. The lower end of the clamping block 8 is provided with a slider 13 that passes through the second slide groove 12 and is slidably connected to the second slide groove 12. The lower end of the slider 13 is fixedly provided with a bottom block 14. A second motor 15 is fixedly provided on one side of the processing table 1. The output end of the second motor 15 is provided with a second rotating shaft 16. Two second lead screws 17 with reverse thread structure are symmetrically provided on the second rotating shaft 16. The two second lead screws 17 pass through the two bottom blocks 14 respectively and are threadedly connected to the bottom blocks 14.

[0026] The control box 18 is connected to the first motor 6 and the second motor 15 via electrical signals.

[0027] When using this servo structure to process chucks, first place the servo workpiece on the upper end of the processing table 1 to ensure that the workpiece is in the appropriate position on the processing table 1 so that subsequent clamping operations can be carried out smoothly.

[0028] Then, the control chassis 18 sends an electrical signal to start the first motor 6 and the second motor 15 respectively. When the first motor 6 starts, the shaft at its output end (motor shaft) begins to rotate. Since the shaft is equipped with two first lead screws 7 with reverse thread structure, and the two first lead screws 7 pass through the two moving blocks 4 respectively and are threadedly connected to the moving blocks 4, and the bottom end of the moving blocks 4 is inserted into the first slide groove 5 and slidably connected to the first slide groove 5, as the shaft rotates, the two moving blocks 4 will slide relatively closer or further away along the first slide groove 5 under the action of the first lead screws 7. The movement of the moving blocks 4 will drive the clamping plate 2 fixedly connected to it to move synchronously, thereby causing the clamping guide rails 3 fixedly set on the inner side of the clamping plate 2 to move closer to the servo workpiece until the two clamping guide rails 3 contact the front and rear sides of the servo workpiece.

[0029] The clamping block 8 has two symmetrical slots 9 and a frame 11 on both sides. The frame 11 has a support rod 10 inserted into the slot 9 on the side near the clamping block 8. The support rod 10 is slidably connected to the clamping block 8. The frame 11 is penetrated by the clamping guide rail 3 and is slidably connected to the clamping guide rail 3. The inner side of the frame 11 is flush with the inner side of the clamping block 8. The frame 11 and the support rod 10 are an integrated structure.

[0030] During the movement of the clamping guide rail 3, because the frame 11 is penetrated by the clamping guide rail 3 and is slidably connected to the clamping guide rail 3, the clamping guide rail 3 will move along with the frame 11. Furthermore, because the side of the frame 11 closest to the clamping block 8 has a support rod 10 inserted into the empty slot 9, and the support rod 10 is slidably connected to the clamping block 8, when the frame 11 moves, the support rod 10 will extend and retract within the empty slots 9 symmetrically arranged on both sides of the clamping block 8 to accommodate the movement of the frame 11.

[0031] Next, the second motor 15 starts under the control of the control box 18, and the second shaft 16 at its output end begins to rotate. Since the second shaft 16 is equipped with two second lead screws 17 with reverse threaded structures, and these two lead screws 17 respectively pass through the two base blocks 14 and are threadedly connected to them, while the slider 13 at the lower end of the clamping block 8 passes through the second slide groove 12 and is slidably connected to it, and the lower end of the slider 13 is fixedly connected to the base block 14, as the second shaft 16 rotates, the two base blocks 14, under the action of the second lead screws 17, will drive the slider 13 to slide relatively closer or further away along the second slide groove 12, thereby driving the clamping block 8 to move synchronously. Finally, the clamping block 8 and the two cooperating frames 11 will contact the left and right sides of the servo workpiece, completing the comprehensive clamping and fixing of the servo workpiece.

[0032] Both the first motor 6 and the second motor 15 are servo motors.

[0033] Both the first motor 6 and the second motor 15 are servo motors. By utilizing their built-in "torque feedback function", the output torque can be estimated and converted into clamping force, which can effectively control the clamping force and avoid damage to the servo workpiece due to excessive clamping force, thus ensuring the safety of the processing.

[0034] The cross-sections of the first slide 5 and the second slide 12 are both rectangular, and the cross-section of the clamping guide rail 3 is T-shaped.

[0035] The first slide 5 and the second slide 12 both have rectangular cross sections, which ensures the stability of the moving block 4 and the slider 13 during the sliding process; the clamping guide rail 3 has a T-shaped cross section, which improves the stability of the frame 11 during the sliding process (limiting the vertical displacement of the frame 11); the frame 11 and the support rod 10 are integrated structures, which enhances the firmness of the connection between the two. The overall structure is reasonably designed and the parts are coordinated, ensuring the stability of the chuck during long-term use.

[0036] Control chassis 18:

[0037] Core Controller: A Siemens S7-1200 series PLC (such as CPU1214CDC / DC / DC) is selected, supporting PROFINET communication protocol and 4-axis motion control functions. Synchronous control of dual servo motors can be achieved through TIAPortal programming. This PLC integrates 14 inputs and 10 outputs to meet the digital interaction requirements of brake control, emergency stop signals, etc., and the I / O interface density can be enhanced through expansion signal boards (such as SB1223).

[0038] Drive Module: Equipped with two Siemens SINAMICSV90PN servo drives, supporting PROFINET real-time communication and torque control mode. The drives have built-in current monitoring capabilities, allowing for the estimation of output torque (accuracy ±3% to 5%) by reading motor phase current values, meeting the "torque feedback function" requirement in the patent. The drives support parameter self-tuning and notch filtering to suppress mechanical resonance and optimize dynamic response.

[0039] Power supply module: Utilizing the Mean Well DR-1000-24 switching power supply (24V / 41.7A), it features a wide operating temperature range of -30℃ to +75℃ and an IP20 protection rating, meeting the stable power supply requirements of industrial environments. This power supply supports a wide input range of 85~264VAC, adapting to mains voltage fluctuations, and incorporates active short-circuit protection and over-temperature derating functions to ensure system reliability.

[0040] Servo motors (6 for first motor / 15 for second motor):

[0041] Model Selection: Siemens SIMOTICSS-1FK7 series servo motors (e.g., 1FK7022-5AK71-1EA0) are used, with a rated torque of 2.2 Nm, a maximum speed of 6000 rpm, and a built-in 20-bit multi-turn absolute encoder. The motor has an IP65 protection rating, suitable for dusty environments in processing workshops.

[0042] Key parameter matching:

[0043] Torque calculation: Based on the lead screw transmission mechanism in the patent, it is assumed that the load inertia converted to the motor shaft is 0.0015 kg·m. 2 Angular acceleration 314 rad / s 2 (Accelerating from 0 to 6000rpm in 0.2 seconds), the acceleration torque requirement is 0.628Nm. After adding the friction torque, the motor's rated torque of 2.2Nm can provide a safety margin of 3.5 times.

[0044] Inertia matching: Motor rotor inertia 0.0005 kg·m 2 The load inertia ratio λ = 3 meets the requirement of λ ≤ 10 in general industrial scenarios, ensuring dynamic response stability.

[0045] Brake function: The motor integrates a power failure electromagnetic brake, which can lock the lead screw to prevent workpiece slippage when power is off. The brake holding torque is ≥1.5 times the rated torque, which meets industrial safety standards.

[0046] In the description herein, it should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A server-structured machining chuck, comprising a machining table (1) and a control chassis (18), wherein the control chassis (18) is mounted on the front side of the machining table (1), characterized in that: The upper end of the processing table (1) is symmetrically provided with two clamping plates (2) and a first slide groove (5). The inner side of the clamping plate (2) is fixedly provided with a clamping guide rail (3). The middle part of the outer side of the clamping plate (2) is fixedly provided with a moving block (4). The bottom end of the moving block (4) is inserted into the first slide groove (5) and slidably connected with the first slide groove (5). The front side of the processing table (1) is fixedly provided with a first motor (6). The output end of the first motor (6) is provided with a rotating shaft that passes through the first slide groove (5). Two first lead screws (7) with reverse thread structure are symmetrically provided on the rotating shaft. The two first lead screws (7) pass through the two moving blocks (4) respectively and are threadedly connected with the moving blocks (4). The upper end of the processing table (1) is symmetrically provided with two clamping blocks (8) and a second slide groove (12). The lower end of the clamping block (8) is provided with a slider (13) that passes through the second slide groove (12) and is slidably connected to the second slide groove (12). The lower end of the slider (13) is fixedly provided with a bottom block (14). A second motor (15) is fixedly provided on one side of the processing table (1). The output end of the second motor (15) is provided with a second rotating shaft (16). Two second lead screws (17) with reverse thread structure are symmetrically provided on the second rotating shaft (16). The two second lead screws (17) pass through the two bottom blocks (14) respectively and are threadedly connected to the bottom blocks (14). The control box (18) is connected to the first motor (6) and the second motor (15) via electrical signals.

2. The servo structure machining chuck according to claim 1, characterized in that: The clamping block (8) has two symmetrical slots (9) and a frame (11) on both sides. The frame (11) has a support rod (10) inserted into the slot (9) on the side near the clamping block (8). The support rod (10) is slidably connected to the clamping block (8). The frame (11) is penetrated by the clamping guide rail (3) and is slidably connected to the clamping guide rail (3). The inner side of the frame (11) is flush with the inner side of the clamping block (8).

3. A servo structure machining chuck according to claim 2, characterized in that: The frame (11) and the support rod (10) are an integrated structure.

4. A servo structure machining chuck according to claim 3, characterized in that: The cross-sections of the first slide (5) and the second slide (12) are both rectangular.

5. A servo-structure machining chuck according to claim 4, characterized in that: Both the first motor (6) and the second motor (15) are servo motors.

6. A servo-structure machining chuck according to claim 5, characterized in that: The clamping guide rail (3) has a T-shaped cross section.

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