Positioning tool for machining metal parts
By introducing an L-shaped clamping seat and clamping block assembly into the positioning fixture for metal parts processing, combined with electric slide rails and servo motor drives, and real-time monitoring of clamping force, the problem of deformation of metal parts during clamping is solved, and the processing accuracy and quality are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI LIANRUI TECH CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-06-02
AI Technical Summary
Metal parts are prone to deformation to varying degrees during clamping, leading to problems with machining accuracy and quality.
It adopts an L-shaped clamping seat and clamping block assembly, combined with electric slide rail and servo motor drive, and uses a pressure sensor to monitor the clamping force in real time to avoid deformation of metal parts during the clamping process.
This effectively avoids deformation of metal parts during the clamping process, improving machining accuracy and quality.
Smart Images

Figure CN224310591U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal parts processing technology, specifically a positioning fixture for metal parts processing. Background Technology
[0002] Metal parts are basic industrial components manufactured from ferrous, non-ferrous, and special metals through processes such as casting, forging, and machining. Their performance is comprehensively influenced by the material's mechanical properties (strength / plasticity / fatigue limit), physical properties (hardness / thermal conductivity), and chemical properties (corrosion resistance). The 2020 classification system indicates that the aerospace field commonly uses high-strength materials such as nickel-based superalloys, while building structures primarily use carbon steel. The manufacturing process requires selecting appropriate technical routes based on process parameters such as weldability and machinability. For example, low-carbon steel is suitable for stamping processes, while high-carbon steel is mostly used for transmission components requiring heat treatment.
[0003] When machining metal parts, they need to be clamped and fixed first. Since different types of metal parts have different hardness, they are prone to deformation of varying degrees during the clamping process. Utility Model Content
[0004] The purpose of this utility model is to provide a positioning fixture for processing metal parts, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a positioning fixture for processing metal parts, including a worktable, with two symmetrically arranged electric slide rails installed on the top outer wall of the worktable, and two symmetrically arranged clamping mechanisms slidably installed between the two electric slide rails. The clamping mechanism includes a clamping seat slidably connected to the two electric slide rails, and the clamping seat has an L-shaped cross-section. The top outer wall of the clamping seat has two symmetrically arranged rectangular openings, and clamping block assemblies are slidably installed on the inner walls of both rectangular openings.
[0006] Preferably, the clamping block assembly includes a clamping block, and an installation groove is formed on one outer wall of the clamping block, and a detection component is installed on the inner wall of the installation groove.
[0007] Preferably, the detection assembly includes a detection tube fixedly connected to the inner wall of the mounting groove, and a drive column is slidably connected to the inner wall of the detection tube. One end of the drive column is fixedly connected to a contact seat, and a pressure sensor is fixedly connected to one side of the inner wall of the detection tube. The pressure sensor and the drive column are fixedly connected to the same spring.
[0008] Preferably, two fixing rods are fixedly connected to the inner walls of both sides of the clamping seat, and two symmetrically arranged drive seats are slidably connected to the outer walls of the two fixing rods. The two drive seats are respectively fixedly connected to the two clamping blocks. The same fixing frame is fixedly connected at the center line of the inner walls of both sides of the clamping seat, and the two fixing rods pass through the fixing frame.
[0009] Preferably, lead screws are rotatably connected between the outer walls of both sides of the fixing frame and the inner walls of both sides of the clamping seat. The two drive seats are respectively screwed onto the outer walls of the two lead screws. The same gear one is rotatably connected to the outer wall of the fixing frame on opposite sides, and the two ends of the transmission shaft of gear one are respectively fixedly connected to the two lead screws. A servo motor is fixedly connected to the outer wall of the fixing frame, and a gear two is fixedly connected to the output shaft of the servo motor. Gear two and gear one mesh with each other.
[0010] Preferably, a control panel is fixedly connected to one outer wall of the workbench, and the control panel is electrically connected to the electric slide rail, servo motor and pressure sensor.
[0011] Compared with the prior art, the beneficial effects of this utility model are: by setting two clamping seats on the clamping mechanism and installing a detection component in the clamping seats, the cooperation between the contact seat and the pressure sensor in the detection component can effectively avoid the deformation of metal parts during the clamping process, thus solving the problem that metal parts are easily deformed during the clamping process of existing positioning fixtures. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the clamping mechanism structure of this utility model;
[0014] Figure 3 This is a schematic diagram of the internal structure of the clamping seat of this utility model;
[0015] Figure 4 This is a schematic diagram of the clamping block structure of this utility model;
[0016] Figure 5 This is a cross-sectional view of the detection component of this utility model.
[0017] The components represented by each number in the attached diagram are listed below: 1. Workbench; 2. Control panel; 3. Electric slide rail; 4. Clamping mechanism; 5. Clamping seat; 6. Rectangular opening; 7. Clamping block assembly; 8. Clamping block; 9. Detection assembly; 10. Fixing rod; 11. Drive seat; 12. Fixing frame; 13. Gear 1; 14. Servo motor; 15. Gear 2; 16. Lead screw; 17. Mounting slot; 18. Detection tube; 19. Contact seat; 20. Drive column; 21. Pressure sensor; 22. Spring. Detailed Implementation
[0018] 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.
[0019] This utility model provides a technical solution:
[0020] Please see Figures 1-5 The figure shows a positioning fixture for processing metal parts, including a worktable 1. Two symmetrically arranged electric slide rails 3 are installed on the top outer wall of the worktable 1, and two symmetrically arranged clamping mechanisms 4 are slidably installed between the two electric slide rails 3. The clamping mechanism 4 includes a clamping seat 5 slidably connected to the two electric slide rails 3, and the clamping seat 5 has an L-shaped cross-section. Two symmetrically arranged rectangular openings 6 are opened on the top outer wall of the clamping seat 5, and clamping block assemblies 7 are slidably installed on the inner walls of the two rectangular openings 6.
[0021] In this embodiment, the electric slide rail 3 on the workbench 1 facilitates the driving of the two clamping mechanisms 4 to move towards or away from each other. When the two clamping mechanisms 4 move towards each other, it is convenient to clamp larger metal parts. The two adjustable clamping block assemblies 7 on the clamping seat 5 facilitate the clamping of metal parts, and at the same time, the clamping force can be monitored in real time to avoid deformation of the metal parts.
[0022] Please see Figures 4-5 The clamping block assembly 7 shown in the figure includes a clamping block 8, and a mounting groove 17 is provided on one side of the outer wall of the clamping block 8. A detection assembly 9 is installed on the inner wall of the mounting groove 17. The detection assembly 9 includes a detection tube 18 fixedly connected to the inner wall of the mounting groove 17, and a drive column 20 is slidably connected to the inner wall of the detection tube 18. A contact seat 19 is fixedly connected to one end of the drive column 20. A pressure sensor 21 is fixedly connected to one side of the inner wall of the detection tube 18, and the same spring 22 is fixedly connected between the pressure sensor 21 and the drive column 20.
[0023] In this embodiment, when the two clamping blocks 8 move toward each other, they clamp the metal part. Before the clamping blocks 8 contact the metal part, the contact seat 19 in the detection component 9 contacts the metal part first. When the clamping blocks 8 continue to move, the contact seat 19 will compress the spring 22. When the spring 22 is compressed to a certain range, the pressure sensor 21 is triggered. At this time, the two clamping blocks 8 stop moving to avoid deformation of the metal part.
[0024] Please see Figures 1-3In the diagram, two fixing rods 10 are fixedly connected to the inner walls of both sides of the clamping seat 5, and two symmetrically arranged drive seats 11 are slidably connected to the outer walls of the two fixing rods 10. The two drive seats 11 are fixedly connected to the two clamping blocks 8 respectively. The same fixing frame 12 is fixedly connected at the center line of the inner walls of both sides of the clamping seat 5. The two fixing rods 10 pass through the fixing frame 12. The two outer walls of the fixing frame 12 and the two inner walls of the clamping seat 5 are rotatably connected to the lead screws 16. The two drive seats 11 are screwed onto the outer walls of the two lead screws 16 respectively. The same gear 13 is rotatably connected to the outer wall of the fixing frame 12 on opposite sides, and the two ends of the transmission shaft of gear 13 are fixedly connected to the two lead screws 16 respectively. The outer wall of the fixing frame 12 is fixedly connected to the servo motor 14, and gear 2 15 is fixedly connected to the output shaft of the servo motor 14. Gear 2 15 and gear 13 mesh with each other.
[0025] In this embodiment, when it is necessary to drive the two clamping blocks 8 to move, the servo motor 14 is started. The servo motor 14 drives the gear 2 15 to rotate. When the gear 2 15 rotates, it drives the two lead screws 16 to rotate through the gear 1 13. When the two lead screws 16 rotate synchronously, it is convenient to drive the two drive seats 11 to move towards or away from each other. The drive seats 11 are connected to the clamping blocks 8, which facilitates the clamping blocks 8 to clamp the metal parts. The setting of the fixing rod 10 ensures the stable sliding of the two drive seats 11 and avoids their sliding deviation.
[0026] Please see Figures 1-5 As shown in the figure, a control panel 2 is fixedly connected to one side of the outer wall of the workbench 1, and the control panel 2 is electrically connected to the electric slide rail 3, the servo motor 14 and the pressure sensor 21.
[0027] In this embodiment, the electrical components in the positioning fixture can be easily controlled through the settings of the control panel 2. When the pressure sensor 21 is triggered, the servo motor 14 is controlled to stop rotating.
[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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.
[0029] 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, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A positioning tool for machining of metal parts, comprising a worktable (1), characterized in that: The workbench (1) has two symmetrically arranged electric slide rails (3) installed on its top outer wall, and two symmetrically arranged clamping mechanisms (4) are slidably installed between the two electric slide rails (3). The clamping mechanism (4) includes a clamping seat (5) slidably connected to the two electric slide rails (3), and the clamping seat (5) has an L-shaped cross-section. The clamping seat (5) has two symmetrically arranged rectangular openings (6) on its top outer wall, and the inner walls of the two rectangular openings (6) are slidably equipped with clamping block assemblies (7).
2. The positioning fixture for machining metal parts according to claim 1, characterized in that: The clamping block assembly (7) includes a clamping block (8), and an installation groove (17) is provided on one side of the outer wall of the clamping block (8). A detection component (9) is installed on the inner wall of the installation groove (17).
3. The positioning fixture for machining metal parts according to claim 2, characterized in that: The detection assembly (9) includes a detection tube (18) fixedly connected to the inner wall of the mounting groove (17), and a drive column (20) is slidably connected to the inner wall of the detection tube (18). One end of the drive column (20) is fixedly connected to a contact seat (19). A pressure sensor (21) is fixedly connected to the inner wall of one side of the detection tube (18), and the same spring (22) is fixedly connected between the pressure sensor (21) and the drive column (20).
4. A positioning fixture for machining metal parts according to claim 3, characterized in that: The clamping seat (5) has two fixed rods (10) fixedly connected to the inner walls on both sides, and the outer walls of the two fixed rods (10) are slidably connected to two symmetrically arranged drive seats (11). The two drive seats (11) are fixedly connected to the two clamping blocks (8) respectively. The same fixed frame (12) is fixedly connected at the center line of the inner walls on both sides of the clamping seat (5), and the two fixed rods (10) pass through the fixed frame (12).
5. A positioning fixture for machining metal parts according to claim 4, characterized in that: Both sides of the fixed frame (12) and the two sides of the clamping seat (5) are rotatably connected to lead screws (16). The two drive seats (11) are respectively screwed onto the outer walls of the two lead screws (16). The fixed frame (12) is rotatably connected to the same gear one (13) on opposite outer walls. The two ends of the transmission shaft of gear one (13) are respectively fixedly connected to the two lead screws (16). The outer wall of the fixed frame (12) is fixedly connected to a servo motor (14). The output shaft of the servo motor (14) is fixedly connected to a gear two (15). The gear two (15) and gear one (13) mesh with each other.
6. A positioning fixture for machining metal parts according to claim 5, characterized in that: A control panel (2) is fixedly connected to one side of the outer wall of the workbench (1), and the control panel (2) is electrically connected to the electric slide rail (3), the servo motor (14) and the pressure sensor (21).