Fixing device for lathe machining of Z-direction tensile sample
By designing a fixing device that includes a plug rod, a semi-circular ring, a limiting block, and a spring, the problem of clamping instability caused by traditional clamping methods is solved, the processing accuracy and pass rate of Z-axis tensile specimens are improved, and costs and safety risks are reduced.
Patent Information
- Application Number
- CN202520423481.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-12
AI Technical Summary
Traditional live-center clamping methods have insufficient clamping stability when processing φ6mm Z-axis tensile specimens, resulting in low processing accuracy, low product qualification rate, high equipment maintenance costs, and safety hazards.
A fixing device including a first clamping plate and a second clamping plate is adopted. Through the combination design of the insertion rod, semi-circular ring, limiting block and spring, the sample is stably clamped. The spring's reset action ensures that the clamping rod and the clamping slot are engaged, and the sample is firmly fixed.
It improved the processing accuracy and pass rate of φ6mm Z-direction tensile specimens from 50% to 90%, reduced the number of reworks, and lowered equipment maintenance costs and safety risks.
Smart Images
Figure CN223917363U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of chemical inspection, specifically is a fixing device for lathe machining Z direction tensile sample. BACKGROUND
[0002] In the field of lathe machining, especially in the machining process of the Z direction tensile sample of φ6mm, the traditional clamping mode mainly relies on the live center for clamping.
[0003] However, this clamping mode exposes a series of significant problems in actual application, which seriously affects the machining efficiency and product quality. First of all, when the live center clamps the Z direction tensile sample of φ6mm, due to the small size of the sample, the clamping stability is insufficient, which leads to the sample to shake easily in the machining process. This shaking not only affects the machining precision, but also reduces the product pass rate. According to statistics, when the live center clamping mode is adopted, the size unqualified rate of the sample is even less than 50%, which means that a large number of samples need to be resampled and processed, thereby causing a huge waste of time and resources. Secondly, the frequent damage of the live center is also a problem that cannot be ignored. Due to the unstable clamping and high load in the machining process, the wear and damage of the live center is fast, which not only increases the maintenance cost of the equipment, but also leads to a significant increase in the processing cost. In addition, the damage of the live center may also cause safety hazards in the machining process, which threatens the safety of the operator. Therefore, we propose a fixing device for lathe machining Z direction tensile sample to solve the above problems. CONTENT OF THE UTILITY MODEL
[0004] (I) Technical problem solved
[0005] In view of the deficiencies of the prior art, the utility model provides a fixing device for lathe machining Z direction tensile sample, which solves the problems proposed in the above background technology.
[0006] (II) Technical scheme
[0007] The utility model discloses in order to realize the above-mentioned purpose specifically adopts the following technical scheme:
[0008] A fixing device for machining Z-axis tensile specimens on a lathe includes a lathe spindle. A first clamping plate is movably contacted at the top of the lathe spindle, and a second clamping plate is movably contacted at the bottom of the lathe spindle. The first and second clamping plates are in movable contact. Both the first and second clamping plates have semi-circular grooves and fixing grooves. A insertion rod is welded to the inner wall of one side of each semi-circular groove. Insertion grooves are formed on both sides of the lathe spindle. Two mounting blocks are welded to the top of the second clamping plate, and a retaining groove is formed on one side of each mounting block. The first clamping plate has... A groove is provided, and a guide rod is welded between the inner walls of the two sides of the groove. A limit block is slidably connected to the guide rod. A spring is welded between one side of the limit block and the inner wall of the corresponding groove. The same semicircular ring is fixedly connected to the two limit blocks. Two connecting posts are welded to one side of the semicircular ring. A connecting block is welded to one side of the connecting posts. A locking rod is welded to one side of the connecting blocks. Two rectangular slots are opened on one side of the first clamping plate. The rectangular slots are in movable contact with the corresponding mounting blocks. The locking rod is inserted into the corresponding rectangular slot and engages with the slot.
[0009] Furthermore, the spring is movably sleeved on the corresponding guide rod, and the insertion slot is engaged with the corresponding insertion rod.
[0010] Furthermore, the limiting block is provided with a guide hole, and the limiting block is slidably connected to the corresponding guide rod through the guide hole.
[0011] Furthermore, a square hole is provided on one inner wall of the rectangular groove, and the inner wall of the square hole is slidably connected to the corresponding locking rod.
[0012] Furthermore, both the first clamping plate and the second clamping plate are made of copper.
[0013] (III) Beneficial Effects
[0014] Compared with the prior art, this utility model provides a fixing device for machining Z-axis tensile specimens on a lathe, which has the following advantages:
[0015] This invention involves inserting a first clamping plate into the slot of a lathe spindle via a plug rod. A moving semi-circular ring causes a limiting block to slide on a guide rod, compressing a spring. The semi-circular ring then moves a connecting block via a connecting post, which in turn moves a locking rod. The sample is then placed on a second clamping plate, and a mounting block on the second clamping plate is inserted into a corresponding rectangular slot. When one side of the first clamping plate contacts one side of the second clamping plate, the force on the semi-circular ring is released, causing the compressed spring to reset. The spring, via the limiting block, moves the semi-circular ring, which in turn moves the locking rod via the connecting post and connecting block, engaging the locking rod with the locking slot. This securely clamps the first and second clamping plates onto the lathe spindle, firmly holding the sample. The sample end is stably clamped and no longer wobbles, thus improving machining dimensional accuracy, significantly reducing rework frequency, and increasing machining efficiency. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a three-dimensional structural diagram of the first and second clamping plates of this utility model after disassembly.
[0018] Figure 3 This is a three-dimensional structural diagram of the first and second clamping plates of this utility model after they have been cut open.
[0019] Figure 4 This is a schematic diagram of the inclined three-dimensional structure of the first clamping plate of this utility model;
[0020] Figure 5 This is a three-dimensional structural diagram of the lathe spindle of this utility model;
[0021] Figure 6 This utility model Figure 2 A magnified structural diagram of area A in the middle.
[0022] In the diagram: 1. Lathe spindle; 2. First clamping plate; 3. Second clamping plate; 4. Semicircular groove; 5. Insert rod; 6. Insertion groove; 7. Fixing groove; 8. Mounting block; 9. Slot; 10. Groove; 11. Guide rod; 12. Limiting block; 13. Spring; 14. Semicircular ring; 15. Connecting column; 16. Connecting block; 17. Clamping rod; 18. Rectangular groove. 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. Example
[0024] like Figures 1-6As shown in the figure, an embodiment of the present invention provides a fixing device for machining Z-axis tensile specimens on a lathe, including a lathe spindle 1. A first clamping plate 2 is movably contacted at the top of the lathe spindle 1, and a second clamping plate 3 is movably contacted at the bottom of the lathe spindle 1. The first clamping plate 2 and the second clamping plate 3 are in movable contact. Both the first clamping plate 2 and the second clamping plate 3 have semi-circular grooves 4 and fixing grooves 7. A plug rod 5 is welded to the inner wall of one side of the semi-circular groove 4. Insertion grooves 6 are provided on both sides of the lathe spindle 1. Two mounting blocks 8 are welded to the top of the second clamping plate 3, and a slot 9 is provided on one side of each mounting block 8. The first clamping plate 2 has... A groove 10 is provided, and a guide rod 11 is welded between the inner walls of the two sides of the groove 10. A limit block 12 is slidably connected to the guide rod 11. A spring 13 is welded between one side of the limit block 12 and the inner wall of the corresponding side of the groove 10. The same semicircular ring 14 is fixedly connected to the two limit blocks 12. Two connecting posts 15 are welded to one side of the semicircular ring 14. A connecting block 16 is welded to one side of the connecting post 15. A locking rod 17 is welded to one side of the connecting block 16. Two rectangular slots 18 are opened on one side of the first clamping plate 2. The rectangular slots 18 are in movable contact with the corresponding mounting block 8. The locking rod 17 is inserted into the corresponding rectangular slot 18 and is in contact with the slot 9. The first clamping plate 2 is inserted into the insertion slot 6 of the lathe spindle 1 via the insertion rod 5. Then, the semi-circular ring 14 is moved, causing the limiting block 12 to slide on the corresponding guide rod 11 and compress the spring 13. Simultaneously, the semi-circular ring 14 moves the corresponding connecting block 16 via the connecting post 15. The connecting block 16 then moves the corresponding clamping rod 17. The sample is then placed on the second clamping plate 3, and the mounting block 8 on the second clamping plate 3 is inserted into the corresponding rectangular slot 18. When one side of the first clamping plate 2 contacts one side of the second clamping plate 3, the force on the semi-circular ring 14 is released, and it is now in a compressed state. Spring 13 returns to its original position. Under the action of its own elastic force, spring 13 drives semi-circular ring 14 to move through limit block 12. Semi-circular ring 14 drives clamping rod 17 to move through connecting column 15 and connecting block 16, so that clamping rod 17 is engaged with clamping groove 9, thereby clamping the first clamping plate 2 and the second clamping plate 3 on the lathe spindle 1 and firmly holding the sample. The end of the sample is clamped stably and no longer shakes, thereby improving the dimensional accuracy of machining φ6mm Z-direction tensile sample. At present, the first-pass yield rate of φ6mm Z-direction sample machining has increased from 50% to over 90%, greatly reducing the number of reworks and improving machining efficiency.
[0025] In some embodiments, the spring 13 is movably sleeved on the corresponding guide rod 11, and the insertion slot 6 is engaged with the corresponding insertion rod 5. The spring 13 serves to reset the device.
[0026] In some embodiments, the limiting block 12 is provided with a guide hole, and the limiting block 12 is slidably connected to the corresponding guide rod 11 through the guide hole.
[0027] In some embodiments, a square hole is provided on one inner wall of the rectangular groove 18, and the inner wall of the square hole is slidably connected to the corresponding locking rod 17. The locking rod 17 serves to fix the groove.
[0028] In some embodiments, both the first clamping plate 2 and the second clamping plate 3 are made of copper to avoid damaging the workpiece.
[0029] Working principle or structural principle: During use, the first clamping plate 2 and the second clamping plate 3 are separated from the lathe spindle 1. The first clamping plate 2 is inserted into the insertion slot 6 of the lathe spindle 1 via the insertion rod 5. Then, the semi-circular ring 14 is moved, causing the limiting block 12 to slide on the corresponding guide rod 11 and compress the spring 13. At the same time, the semi-circular ring 14 drives the corresponding connecting block 16 to move via the connecting post 15. The connecting block 16 drives the corresponding locking rod 17 to move. Then, the sample is placed into the fixing slot 7 of the second clamping plate 3, and the mounting block 8 on the second clamping plate 3 is inserted into the corresponding rectangular slot 18. At the same time, the insertion rod 5 on the second clamping plate 3 is inserted into another insertion slot 6 of the lathe spindle 1. When one side of the first clamping plate 2 is in contact with the second clamping plate 3, the sample is placed into the fixing slot 7 of the second clamping plate 3. The mounting block 8 on the second clamping plate 3 is inserted into the corresponding rectangular slot 18. At the same time, the insertion rod 5 on the second clamping plate 3 is inserted into another insertion slot 6 of the lathe spindle 1. When one side of plate 3 contacts, the force on the semi-circular ring 14 is released, and the spring 13, which is under compression, returns to its original state. Under the action of the spring 13's own elastic force, the spring 13 drives the semi-circular ring 14 to move through the limiting block 12. The semi-circular ring 14 drives the clamping rod 17 to move through the connecting column 15 and the connecting block 16, so that the clamping rod 17 is engaged with the clamping groove 9, thereby clamping the first clamping plate 2 and the second clamping plate 3 onto the lathe spindle 1 and firmly holding the sample through the two fixing grooves 7. The sample end is stably clamped and no longer shakes, thereby improving the dimensional accuracy of the φ6mm Z-direction tensile sample. Currently, the first-pass yield rate of the φ6mm Z-direction sample has increased from 50% to over 90%, greatly reducing the number of reworks and improving the processing efficiency.
[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A fixing device for machining Z-axis tensile specimens on a lathe, comprising a lathe spindle (1), characterized in that: The top of the lathe spindle (1) is in movable contact with a first clamping plate (2), and the bottom of the lathe spindle (1) is in movable contact with a second clamping plate (3). The first clamping plate (2) and the second clamping plate (3) are in movable contact. Both the first clamping plate (2) and the second clamping plate (3) are provided with a semi-circular groove (4) and a fixing groove (7). A plug rod (5) is welded to the inner wall of one side of the semi-circular groove (4). Both sides of the lathe spindle (1) are provided with plug slots (6). The top of the second clamping plate (3) is welded with two mounting blocks (8). A slot (9) is provided on one side of the mounting block (8). Both sides of the first clamping plate (2) are provided with grooves (10). A guide is welded between the inner walls of the two sides of the grooves (10). A guide rod (11) is slidably connected to a limiting block (12). A spring (13) is welded between one side of the limiting block (12) and the inner wall of the corresponding groove (10). The two limiting blocks (12) are fixedly connected to the same semi-circular ring (14). Two connecting posts (15) are welded to one side of the semi-circular ring (14). A connecting block (16) is welded to one side of the connecting post (15). A locking rod (17) is welded to one side of the connecting block (16). Two rectangular slots (18) are opened on one side of the first clamping plate (2). The rectangular slots (18) are in active contact with the corresponding mounting block (8). The locking rod (17) is inserted into the corresponding rectangular slot (18) and locked with the slot (9).
2. The fixing device for machining Z-axis tensile specimens on a lathe according to claim 1, characterized in that: The spring (13) is movably sleeved on the corresponding guide rod (11), and the insertion slot (6) is engaged with the corresponding insertion rod (5).
3. The fixing device for machining Z-axis tensile specimens on a lathe according to claim 1, characterized in that: The limiting block (12) has a guide hole, and the limiting block (12) is slidably connected to the corresponding guide rod (11) through the guide hole.
4. The fixing device for machining Z-axis tensile specimens on a lathe according to claim 1, characterized in that: A square hole is provided on one side of the inner wall of the rectangular groove (18), and the inner wall of the square hole is slidably connected to the corresponding clamp (17).
5. A fixing device for machining Z-axis tensile specimens on a lathe according to claim 1, characterized in that: Both the first clamping plate (2) and the second clamping plate (3) are made of copper.