Clamp for processing bevel of ultra-short round needle
By designing a workpiece positioning stage and a fixture for the mounting groove, combined with inclined shims, spring positioning screws and limiting steps, the problem of low processing efficiency of mold parts was solved, and batch processing of ultra-short round needles and high-quality finished products were realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU CHANGJIANG AUTOMOBILE ELECTRONICS SYST
- Filing Date
- 2025-07-15
- Publication Date
- 2026-07-21
AI Technical Summary
The existing fixtures are limited in number and have limited functions, which cannot meet the diverse needs of mold parts. Traditional processing methods are inefficient, especially when processing ultra-short round needles, which can only be processed one piece at a time, and the quality of the finished products is not high.
A fixture including a workpiece positioning stage and a mounting groove was designed. Multi-point positioning is achieved through inclined shims, spring positioning screws and limit steps. Combined with the clamping method of magnetic table and rotary wheel, multiple ultra-short round needles can be processed at the same time, improving stability and accuracy.
This technology enables the batch processing of ultra-short round needles, improving processing efficiency and finished product quality, reducing production costs, and ensuring the stability and precision of the workpieces.
Smart Images
Figure CN224527161U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold processing technology, specifically to a fixture for machining the bevel of an ultra-short circular needle. Background Technology
[0002] Because mold parts come in a wide variety of shapes, various fixtures are often needed to assist in the processing. However, the number of fixtures purchased is limited, and their functions are limited, which cannot meet the processing needs of all mold parts. Moreover, mold parts are processed in batches, and traditional processing methods are basically single-piece clamping, which is time-consuming, labor-intensive, and inefficient.
[0003] Traditional processing methods cannot achieve batch processing of ultra-short round needles; they can only process single ultra-short round needles, resulting in low efficiency and poor quality of finished products. Summary of the Invention
[0004] The technical problem to be solved by this utility model is to provide a fixture for machining the inclined surface of ultra-short round needles, which can batch process ultra-short round needles, achieve high processing quality, and provide stable workpiece clamping, in order to address the shortcomings of the prior art.
[0005] To achieve the above objectives, the following technical solution is provided: A worktable is included, on which a workpiece positioning stage is provided. The worktable and the workpiece positioning stage cooperate to clamp short needle workpieces. The workpiece positioning stage has several mounting slots spaced apart on its cooperating side with the worktable. Each mounting slot is arranged through the workpiece positioning stage from front to back. The workpiece positioning stage has a machining slope on its side away from the cooperating side with the worktable. The first end of the mounting slot allows the short needle workpiece tip to extend and cooperates with the machining slope to process the short needle workpiece tip. The workpiece positioning stage has a limiting step at the second end of the mounting slot. The limiting step and the worktable abut against the upper and lower sides of the short needle workpiece's needle seat, respectively. An inclined shim is replaceably provided on the worktable, and the inclined shim abuts against the lower side of the portion of the short needle workpiece extending from the first end of the mounting slot.
[0006] A fixture for machining the bevel of an ultra-short circular needle can be further configured as follows: the workpiece positioning table is provided with a spring positioning screw in the vertical direction of each mounting slot, the top of the spring positioning screw can elastically abut against the needle body of the short needle workpiece, each mounting slot is provided with a threaded groove in the vertical direction, the outer periphery of the spring positioning screw is threadedly screwed into the threaded groove, the spring positioning screw is provided with a plunger groove, a spring is provided in the plunger groove, one end of the spring abuts against the bottom of the plunger groove, and the other end abuts against a cylindrical pin or ball head, the cylindrical pin or ball head elastically abuts against the needle body of the short needle workpiece.
[0007] A fixture for machining the bevel of an ultra-short circular needle can be further configured such that each of the mounting slots is equidistant and the slope of the machining bevel is 5-45°.
[0008] A fixture for machining the bevel of an ultra-short circular needle can be further configured as follows: a rotating wheel is provided on the front side of the worktable, a turntable is provided on the upper side of the worktable, a positioning platform is fixedly connected to the turntable, rotating the rotating wheel can drive the turntable and make the positioning platform rotate clockwise and counterclockwise, and a magnetic platform is rotatably connected to one side of the top surface of the positioning platform, and the magnetic platform is magnetically attracted to the workpiece positioning platform and the bevel shim.
[0009] A fixture for machining the bevel of an ultra-short circular needle can be further configured such that: a magnetic switch is provided on the front side of the magnetic table, which can be rotated clockwise or counterclockwise to magnetize or demagnetize the magnetic table.
[0010] A fixture for machining the bevel of an ultra-short circular needle can be further configured such that: the rotating connection end between the magnetic table and the positioning table is provided with a wheel spindle, and the rotation angle between the magnetic table and the positioning table is 0-60°.
[0011] The beneficial effects of this utility model are: The workpiece positioning stage and mounting groove are integrally formed, making clamping convenient and quick, and ensuring the workpiece's squareness and stability (traditional clamping and correction methods are very cumbersome). The use of inclined shims, spring positioning screws, and limiting steps enables three-point positioning of short needle workpieces, thereby achieving stability during processing and improving processing accuracy.
[0012] This type of fixture can replace the original transverse machining with vertical machining. The needle head of the short needle workpiece has a long forming size and is inclined. Transverse machining will cause the workpiece to bounce or break, and cannot guarantee the accuracy and roughness of the workpiece. When machining vertically, the force point is on the workpiece itself, which is not easy to cause large bounce. It has good stability and can guarantee accuracy. This fixture can process multiple short needle workpieces in batches, improving work efficiency.
[0013] The magnetic table can be tilted or rotated to reduce the difficulty of processing, allowing for finer processing of needle details, thereby increasing the yield rate and reducing production costs.
[0014] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description
[0015] Figure 1 As an embodiment of this utility model Figure 1 A schematic diagram of the workpiece positioning table and the inclined shim.
[0016] Figure 2 As an embodiment of this utility model Figure 1 Rear view.
[0017] Figure 3 As an embodiment of this utility model Figure 2Enlarged view of part B.
[0018] Figure 4 As an embodiment of this utility model Figure 2 A sectional view along line AA.
[0019] Figure 5 As an embodiment of this utility model Figure 4 Enlarged view of part C.
[0020] Figure 6 As an embodiment of this utility model Figure 5 A schematic diagram showing the replacement of the cylindrical pin with a ball-headed top bead.
[0021] Figure 7 This is a schematic diagram of the workpiece positioning stage and the inclined shim magnetically attached to the worktable according to an embodiment of the present invention.
[0022] In the diagram: 1. Worktable; 2. Workpiece positioning table; 3. Short needle workpiece; 11. Rotary wheel; 12. Turntable; 13. Positioning table; 14. Magnetic table; 15. Wheel spindle; 16. Magnetic switch; 17. Angled shim; 21. Mounting groove; 22. Machining inclined surface; 23. Limiting step; 24. Spring positioning screw; 211. Threaded groove; 241. Plunger groove; 242. Spring; 243. Cylindrical pin; 244. Ball head. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0024] Example: Figures 1-7The fixture shown is for machining the beveled surface of an ultra-short circular needle, including a worktable 1. A rotating wheel 11 is provided on the front side of the worktable 1, and a turntable 12 is provided on the upper side of the worktable 1. A positioning table 13 is fixedly connected to the turntable 12. Rotating the rotating wheel 11 can drive the turntable 12 and cause the positioning table 13 to rotate clockwise and counterclockwise. The rotating wheel 11 and the turntable 12 can be adjusted by gears, and a limit bolt can be provided internally to limit the rotation of the turntable 11 to a certain angle. A magnetic platform 14 is provided on the worktable 1. The magnetic platform 14 is a sinusoidal magnet. Platform 14, in order to adapt to multi-angle processing, is rotatably connected to one side of the top surface of positioning platform 13. The rotatable connection end of the magnetic platform 14 and positioning platform 13 is provided with a wheel spindle 15. The wheel spindle 15 limits the rotation angle between the magnetic platform 14 and positioning platform 13 to 0-60°. The front side of the magnetic platform 14 is provided with a magnetic switch 16. Rotating the magnetic switch 16 clockwise or counterclockwise can magnetize or demagnetize the magnetic platform 14. The magnetic switch 16 can adopt a hexagonal slot for use with a hexagonal wrench or a slotted slot. like Figure 1 and Figure 7 As shown, the magnetic table 14 is equipped with a workpiece positioning table 2. By rotating the magnetic table 14 clockwise with a hexagonal wrench, the magnetic table 14 is magnetized, and the magnetic table 14 and the workpiece positioning table 2 are magnetically attracted to each other to clamp the short needle workpiece 3. The side of the workpiece positioning table 2 and the magnetic table 14 that are magnetically attracted to each other is provided with a number of mounting slots 21 at intervals. The number of mounting slots 21 can be set to 4-8 as needed, so that multiple short needle workpieces 3 can be processed in batches, thereby improving work efficiency. like Figures 2-6As shown, each mounting groove 21 is arranged through the workpiece positioning table 2. The workpiece positioning table 2 has a machining slope 22 on the side away from the magnetic engagement with the magnetic table 14. Each mounting groove 21 is equidistant, which further increases machining accuracy. The slope of the machining slope 22 is 5-45°. By setting this angle, different inclination angles can be machined, which can be adjusted according to the required machining slope of the short needle workpiece 3. The first end of the mounting groove 21 allows the needle tip of the short needle workpiece 3 to extend and engage with the machining slope 22 to machine the needle tip. The workpiece positioning table 2 has a limiting step 23 at the second end of the mounting groove 21. The limiting step 23 and the magnetic table 14 are respectively... The upper and lower sides of the short needle workpiece 3 abut against each other. The workpiece positioning platform 2 is provided with a spring positioning screw 24 in the vertical direction of each mounting groove 21. The top of the spring positioning screw 24 can elastically abut against the needle body of the short needle workpiece 3. A sloped washer 17 is magnetically replaceable on the magnetic platform 14. The sloped washer 17 abuts against the lower side of the portion of the short needle workpiece 3 extending from the first end of the mounting groove 21. Each mounting groove 21 is provided with a threaded groove 211 in the vertical direction. The outer circumference of the spring positioning screw 24 is threadedly screwed into the threaded groove 211. A plunger groove 241 is provided inside the spring positioning screw 24, and a spring 242 is provided inside the plunger groove 241. One end of the spring 242 abuts against the bottom of the plunger groove 241. Figure 5 As shown, the other end is abutted by a cylindrical pin 243, which elastically abuts against the short needle workpiece 3, or as shown in the figure. Figure 6 As shown, the other end is abutted by a ball head 244, which elastically abuts against the short needle workpiece 3. Both methods can elastically abut against the short needle workpiece 3, increasing the stability during processing. Through the cooperation of the worktable 1 and the workpiece positioning table 2, the working angle of the positioning table 13 on the worktable 1 can be adjusted by rotation first. Then, the workpiece positioning table 2 is placed on the magnetic table 14, and multiple short needle workpieces 3 are inserted from one end of the limiting step 23. At this time, the needle body of the short needle workpiece 3 enters the mounting groove 21. At this time, the spring 242 elastically abuts the cylindrical pin 243 or the ball head bead 244 against the needle body of the short needle workpiece 3. Then, according to the slope of the machining slope 22, the corresponding slope shim 17 is selected and placed under the short needle workpiece 3 pillow. The magnetic table 14 is rotated clockwise to magnetize the magnetic table 14. The magnetic table 14 and the workpiece positioning table 2 magnetically engage to clamp the short needle workpiece 3. Next, the magnetic table 14 on the positioning table 13 is opened to the corresponding machining tilt angle for machining the short needle workpiece 3. Then, a pad is placed and the bolt is tightened to increase stability. At this time, the grinding wheel or other cutting parts can perform linear machining on the needle head. The lower side of the needle head of the short needle workpiece 3 has corresponding support, and the upper part of the needle body of the short needle workpiece 3 also has elastic abutment of cylindrical pin 243 or ball head bead 244. The upper and lower sides of the needle seat of the short needle workpiece 3 also abut against the surface of the limiting step 23 and the magnetic table 14. By multi-point positioning, the bounce of the needle head of the short needle workpiece 3 during linear machining is reduced, machining errors are reduced, and machining accuracy is guaranteed. The machining efficiency is increased by machining multiple short needle workpieces 3 at the same time.
[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples of this utility model and are not intended to limit it. Various changes and modifications can be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.
Claims
1. A fixture for machining the beveled surface of an ultra-short circular needle, comprising a worktable (1), a workpiece positioning stage (2) on the worktable (1), the worktable (1) and the workpiece positioning stage (2) cooperating to clamp the short needle workpiece (3), characterized in that: The workpiece positioning table (2) is provided with a number of mounting slots (21) on the side that cooperates with the worktable (1). Each mounting slot (21) is arranged in a front-to-back manner on the workpiece positioning table (2). The side of the workpiece positioning table (2) away from the side that cooperates with the worktable (1) is provided with a machining slope (22). The first end of the mounting slot (21) is provided for the short needle workpiece (3) to extend out and cooperate with the machining slope (22) to process the short needle workpiece (3) needle. The workpiece positioning table (2) is provided with a limiting step (23) at the second end of the mounting slot (21). The limiting step (23) and the worktable (1) abut against the upper and lower sides of the short needle workpiece (3) needle seat, respectively. The worktable (1) is provided with a slope shim (17) which abuts against the lower side of the short needle workpiece (3) extending from the first end of the mounting slot (21).
2. The fixture for processing a bevel of an ultra-short round needle according to claim 1, wherein: The workpiece positioning table (2) is provided with a spring positioning screw (24) in the vertical direction of each mounting slot (21). The top of the spring positioning screw (24) can elastically abut against the needle body of the short needle workpiece (3). Each mounting slot (21) is provided with a threaded groove (211) in the vertical direction. The outer circumference of the spring positioning screw (24) is threadedly connected to the threaded groove (211) through threads. The spring positioning screw (24) is provided with a plunger groove (241). A spring (242) is provided in the plunger groove (241). One end of the spring (242) abuts against the bottom of the plunger groove (241), and the other end abuts against a cylindrical pin (243) or a ball head (244). The cylindrical pin (243) or the ball head (244) elastically abuts against the needle body of the short needle workpiece (3).
3. The fixture for processing a bevel with an ultra-short round needle according to claim 1 or 2, characterized in that: Each of the mounting slots (21) is equidistant, and the slope of the machining slope (22) is 5-45°.
4. The fixture for processing a bevel of an ultra-short round needle according to claim 3, wherein: The workbench (1) has a rotating wheel (11) on its front side and a turntable (12) on its upper side. A positioning table (13) is fixedly connected to the turntable (12). Rotating the rotating wheel (11) can drive the turntable (12) and make the positioning table (13) rotate clockwise and counterclockwise. A magnetic table (14) is rotatably connected to one side of the top surface of the positioning table (13). The magnetic table is magnetically attracted to the workpiece positioning table (2) and the inclined shim (17).
5. The fixture for processing a bevel of an ultra-short round needle according to claim 4, wherein: The front side of the magnetic platform (14) is provided with a magnetic switch (16), which can be rotated clockwise or counterclockwise to magnetize or demagnetize the magnetic platform (14).
6. The fixture for processing a bevel of an ultra-short round needle according to claim 4, wherein: The rotating connection end of the magnetic platform (14) and the positioning platform (13) is provided with a wheel shaft (15), and the rotation angle between the magnetic platform (14) and the positioning platform (13) is 0-60°.