Grinding mechanism for saw tooth combination
By designing a saw tooth combination grinding mechanism including a frame, a table plate, a thimble, a drive device, an anti-rotating frame and a stroke switch, the problem of difficult to ensure thread accuracy and strength during the processing of the traditional saw tooth combination is solved, and a high-precision grinding effect is achieved.
Patent Information
- Application Number
- CN202510275948.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2025-05-06
AI Technical Summary
Traditional saw tooth combinations are difficult to ensure the accuracy and strength of the threads during processing, and threads are prone to being bitten and collapsed, resulting in the scrapping of the assembly and affecting production.
A combined saw tooth grinding mechanism is designed, including a frame, a table plate, a thimble, a drive device, a rotary frame and a stroke switch, and the automatic grinding of the screw and the adjustment nut is achieved through the cooperation of these components.
High-precision grinding of screws and adjustment nuts is realized, avoiding thread slaughter and collapse, improving grinding accuracy and efficiency, and ensuring the accuracy and consistency of the grinding process.
Smart Images
Figure CN119927337A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of presses, in particular to a grinding mechanism for a saw tooth combination. Background Art
[0002] The sawtooth assembly of the press is one of the important force transmission parts of the whole machine. At present, most of the adjusting nuts and adjusting screws use trapezoidal threads because their dimensional tolerance and surface roughness are easy to guarantee and their processability is good. In two-point presses and four-point presses, the machine tools need to be synchronized, and there are higher requirements for the accuracy and strength of the threads. The traditional processing method cannot guarantee the processing accuracy. The threads will bite and collapse during the use of the punch press, resulting in the scrapping of a set of assemblies, affecting the production operations of the workshop.
[0003] Therefore, it is necessary to design a grinding mechanism of a saw tooth combination to solve the above problems. Summary of the invention
[0004] The purpose of the present invention is to address the deficiencies of the prior art and to provide a grinding mechanism for a saw tooth assembly.
[0005] The technical solution of the present invention is: a grinding mechanism of a saw tooth combination, comprising a frame and a table rotatably mounted on the frame; the saw tooth combination comprises a screw and an adjusting nut; the table is used to fix the screw; the adjusting nut is threadedly connected to the screw; a pin for pressing the screw against the table is movably provided on the top of the frame; a driving device for driving the screw to rotate is provided at the bottom of the table; an anti-rotation frame connected to the adjusting nut is movably connected to the frame, and a travel switch for detecting the extreme position of the anti-rotation frame is also provided on the frame; the travel switch is electrically connected to the driving device.
[0006] It also includes a clamping plate fixed on both sides of the adjusting nut; a lifting ring is rotatably connected to the clamping plate; a counterweight frame is provided on the outer side of the frame; a counterweight block is placed on the counterweight frame; the two ends of the counterweight frame are connected to the lifting rings on the two clamping plates through a pull rope; and a pulley cooperating with the pull rope is provided on the top of the frame.
[0007] The table plate is provided with a positioning groove for positioning the screw rod.
[0008] Locking grooves are symmetrically arranged on both sides of the table; a pressing plate assembly for locking the screw on the table is arranged in the locking groove.
[0009] The driving device comprises a servo motor; the table plate is rotatably mounted on the frame through a connecting shaft, a round nut and a deep groove ball bearing; the servo motor is used to drive the connecting shaft to rotate.
[0010] The locking groove is a T-shaped groove; the pressing plate is movably arranged in the locking groove through a T-shaped bolt.
[0011] By adopting the above technical scheme, the present invention has the following beneficial effects: (1) The present invention realizes the automatic grinding of the screw and the adjusting nut through the cooperation of the frame, the table, the ejector, the driving device, the anti-rotation frame and the travel switch, thereby ensuring the processing accuracy of the saw tooth combination and avoiding the thread biting and collapse in the subsequent use of the punch press. In addition, the driving device drives the screw to rotate, the anti-rotation frame prevents the adjusting nut from rotating, and the travel switch detects the limit position and controls the operation of the driving device, thereby ensuring the accuracy and consistency of the grinding process and significantly improving the grinding accuracy and efficiency.
[0012] (2) The present invention arranges a clamping plate, a lifting ring, a counterweight frame and a pull rope on both sides of the adjusting nut. The counterweight block is connected to the lifting ring through the pull rope, and the pulley is used to achieve force balance. The vibration and deviation of the adjusting nut during the grinding process are effectively reduced, ensuring uniform force during grinding and further improving the grinding quality.
[0013] (3) The table top of the present invention is symmetrically provided with locking grooves on both sides, and a pressure plate assembly is provided in the locking groove, which can quickly lock the screw on the table top, making it easy to operate and adjust; the design of the T-shaped locking groove and the T-shaped bolt further enhances the flexibility and stability of the pressure plate, simplifies the installation and disassembly steps, and improves the convenience of operation.
[0014] (4) The driving device of the present invention adopts a servo motor, which drives the table to rotate through a connecting shaft, a round nut and a deep groove ball bearing, and has a smooth operation and precise power output. The use of the servo motor improves the control accuracy of the grinding process and ensures the consistency of the grinding effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.
[0016] Figure 1 It is a structural schematic diagram of the present invention.
[0017] Figure 2 It is a side view of the present invention.
[0018] Figure 3 It is a schematic structural diagram of the driving device of the present invention.
[0019] The reference numerals in the accompanying drawings are:
[0020] Frame 1, table 2, positioning groove 21, locking groove 22, screw 3, adjusting nut 4, ejector 5, driving device 6, servo motor 61, connecting shaft 62, round nut 63, deep groove ball bearing 64, anti-rotation frame 7, travel switch 8, pressure plate assembly 9, clamping plate 10, lifting ring 11, counterweight frame 12, counterweight block 13, pull rope 14, pulley 15. DETAILED DESCRIPTION
[0021] (Example 1)
[0022] See Figures 1 to 3 , a saw tooth combination grinding mechanism of this embodiment includes a frame 1 and a table 2 rotatably mounted on the frame 1; the saw tooth combination includes a screw 3 and an adjusting nut 4. The table 2 is used to fix the screw 3, and the adjusting nut 4 is threadedly connected to the screw 3. A pin 5 is movably provided on the top of the frame 1 for pressing the screw 3 onto the table 2. A driving device 6 is provided at the bottom of the table 2 for driving the screw 3 to rotate. An anti-rotation frame 7 is movably connected to the frame 1 from top to bottom, and the anti-rotation frame 7 is connected to the adjusting nut 4. A travel switch 8 is also provided on the frame 1 for detecting the extreme position of the anti-rotation frame 7. The travel switch 8 is electrically connected to the driving device 6. When the anti-rotation frame 7 reaches the extreme position, the travel switch 8 triggers and controls the driving device 6 to reverse.
[0023] Furthermore, a positioning groove 21 is provided on the table 2 for positioning the screw 3 to ensure that the screw 3 remains stable during the grinding process. Locking grooves 22 are symmetrically provided on both sides of the table 2, and a pressure plate assembly 9 is provided in the locking groove 22 for locking the screw 3 on the table 2. The locking groove 22 is a T-shaped groove, and the pressure plate 1 is movably arranged in the locking groove 22 by a T-shaped bolt, which is convenient for adjustment and fixing.
[0024] Furthermore, the anti-rotation frame 7 is connected to the adjusting nut 4 to prevent the adjusting nut 4 from rotating during the grinding process. The travel switch 8 is arranged on the frame 1 to detect the limit position of the anti-rotation frame 7 to ensure accurate control of the grinding process.
[0025] Furthermore, a clamping plate 10 is fixed on both sides of the adjusting nut 4, and a lifting ring 11 is rotatably connected to the clamping plate 10. A counterweight frame 12 is provided on the outside of the frame 1, and a counterweight block 13 is placed on the counterweight frame 12. Both ends of the counterweight frame 12 are connected to the lifting rings 11 on the two clamping plates 10 through a pull rope 14, and a pulley 15 is provided on the top of the frame 1. The pull rope 14 cooperates with the pulley 15 to balance the force on the adjusting nut 4 and improve the grinding accuracy.
[0026] Furthermore, the driving device 6 includes a servo motor 61, and the platen 2 is rotatably mounted on the frame 1 through a connecting shaft 62, a round nut 63, a deep groove ball bearing 64 and a thrust ball bearing 65. The servo motor 61 is used to drive the connecting shaft 62 to rotate, thereby driving the platen 2 and the screw 3 to rotate to achieve the grinding operation.
[0027] Working principle of this embodiment: When in use, fix the screw 3 in the positioning groove 21 of the table 2 and lock it by the pressure plate assembly 9. The adjusting nut 4 is threadedly connected to the screw 3 and is prevented from rotating by the anti-rotation frame 7. Start the servo motor 61 to drive the screw 3 to rotate, thereby driving the adjusting nut 4 to move up and down for grinding. The cooperation of the counterweight frame 12 and the pull rope 14 ensures that the adjusting nut 4 is evenly stressed during the grinding process, and the counterweight block 13 can be used to adjust different adjusting nuts 4. When the anti-rotation frame 7 reaches the upper and lower limit positions, the travel switch 8 triggers and stops the movement of the servo motor 61, so that the adjusting nut 4 moves back and forth up and down for grinding operations.
[0028] The present invention achieves high-precision and high-efficiency grinding of the screw rod 3 and the adjusting nut 4 by optimizing the structural design, and at the same time has the advantages of simple operation, strong stability, wide application range, etc., and has significant technical progress and practical value.
[0029] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. 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 grinding mechanism for a saw tooth assembly, characterized in that: The invention comprises a frame (1) and a table (2) rotatably mounted on the frame (1); the saw tooth assembly comprises a screw (3) and an adjusting nut (4); the table (2) is used to fix the screw (3); the adjusting nut (4) is threadedly connected to the screw (3); a pin (5) for pressing the screw (3) onto the table (2) is movably provided at the top of the frame (1); a driving device (6) for driving the screw (3) to rotate is provided at the bottom of the table (2); an anti-rotation frame (7) connected to the adjusting nut (4) is movably connected to the frame (1), and a travel switch (8) for detecting the extreme position of the anti-rotation frame (7) is also provided on the frame (1); the travel switch (8) is electrically connected to the driving device (6).
2. A grinding mechanism for a saw tooth assembly according to claim 1, characterized in that: It also includes a clamping plate (10) fixed on both sides of the adjusting nut (4); a lifting ring (11) is rotatably connected to the clamping plate (10); a counterweight frame (12) is provided on the outer side of the frame (1); a counterweight block (13) is placed on the counterweight frame (12); the two ends of the counterweight frame (12) are connected to the lifting rings (11) on the two clamping plates (10) through a pull rope (14); and a pulley (15) cooperating with the pull rope (14) is provided on the top of the frame (1).
3. A saw tooth assembly grinding mechanism according to claim 1, characterized in that: The platform (2) is provided with a positioning groove (21) for positioning the screw rod (3).
4. The grinding mechanism of a saw tooth assembly according to claim 1, characterized in that: Locking grooves (22) are symmetrically provided on both sides of the table (2); a pressing plate assembly (9) for locking the screw rod (3) on the table (2) is provided in the locking groove (22).
5. The grinding mechanism of a saw tooth assembly according to claim 1, characterized in that: The driving device (6) comprises a servo motor (61); the table plate (2) is rotatably mounted on the frame (1) via a connecting shaft (62), a round nut (63) and a deep groove ball bearing (64); the servo motor (61) is used to drive the connecting shaft (62) to rotate.
6. A saw tooth assembly grinding mechanism according to claim 4, characterized in that: The locking groove (22) is a T-shaped groove; the pressing plate is movably arranged in the locking groove (22) via a T-shaped bolt.