Lathe clamp for machining four-way pipe
By setting three positioning holes in the lathe fixture for machining four-way pipes and performing three rotational positioning operations, the problem of needing to clamp four-way pipes multiple times was solved, and a stable and efficient machining process was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN LUSANG IND CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-05-19
AI Technical Summary
The existing four-way pipe products require four clamping operations during processing, and each clamping operation must avoid contact with the already processed surface, making it difficult to guarantee product quality and stability.
Design a lathe fixture for machining four-way pipes. By setting three positioning holes between the limit plate and the limit base, fixed-point machining can be achieved with three rotations, avoiding multiple clamping.
This ensures the stability and quality of the four-way pipe processing, reduces the probability of clamping rebound deformation, and improves processing stability.
Smart Images
Figure CN224254819U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lathe fixture technology, and more specifically to a lathe fixture for machining four-way pipes. Background Technology
[0002] A fixture is a device used in mechanical manufacturing to fix a workpiece in the correct position for operation or inspection; it is also called a clamp. In a broader sense, any device used to quickly, conveniently, and safely install a workpiece at any stage of the manufacturing process can be called a fixture. A fixture typically consists of positioning elements, clamping devices, tool setting guide elements, indexing devices, connecting elements, and a fixture body.
[0003] Due to the inherent structural limitations of the four-way pipe product, the four-way direction of the existing product is located at different positions and angles. To complete the processing, it is necessary to clamp it four times. Moreover, the product has strict appearance requirements. Each clamping must take into account that it cannot come into contact with any of the previously processed surfaces to avoid scratches and bumps. It is difficult to guarantee this in actual production. Utility Model Content
[0004] To overcome the aforementioned deficiencies in the prior art, this utility model provides a lathe fixture for machining four-way pipes. By setting three positioning holes adapted to the shape of the product between the limiting pressure plate and the limiting base after clamping, the three positioning holes correspond to different angles of each of the four-way pipes. Through fixed-point machining after three rotations at different angles, the quality risks that exist in multiple clamping of the product are avoided, thereby ensuring the stability of the product body during the machining process and solving the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a lathe fixture for processing four-way pipes, including a connecting plate connected to a machine tool, an L-shaped bending plate connected to the side of the connecting plate away from the machine tool, a U-shaped plate rotatably connected to one side of the L-shaped bending plate, and a four-way pipe limiting component for clamping four-way pipes installed inside the U-shaped plate;
[0006] The four-way pipe limiting assembly includes a limiting pressure plate and a limiting base distributed vertically. The limiting pressure plate is designed and manufactured according to the shape of the blank. The bottom of the limiting pressure plate and the top of the limiting base are provided with slots that are adapted to the four-way pipe. After clamping, the limiting pressure plate and the limiting base restrict the four-way pipe in the slots. There are three positioning holes at both ends of the slots, and the three positioning holes correspond to the three openings of the four-way pipe respectively.
[0007] In a preferred embodiment, the limiting base is provided with a single-pass rotating shaft on both sides, which serves as the rotation axis for one rotation. The single-pass rotating shaft is inserted into the side wall of the U-shaped plate, and the side walls of the U-shaped plate are provided with single-pass rotating positioning screws for fixing the limiting base.
[0008] In a preferred embodiment, the limiting pressure plate is equipped with three top posts for supporting the product, which are used to support the product tee at the corresponding external position of the blank, so as to avoid vibration of the knife during processing.
[0009] In a preferred embodiment, a pressure plate screw for fixing the limiting pressure plate is provided on each of the top two sides of the limiting pressure plate, and the bottom end of the pressure plate screw is threaded into the inside of the limiting base.
[0010] In a preferred embodiment, a three-way rotating shaft is provided at the top center of the U-shaped plate. This three-way rotating shaft serves as the rotation axis for one rotation, so that the fixing screws of the U-shaped plate and the L-shaped bend plate are in the same position each time they rotate.
[0011] The three-way rotating shaft is provided with a number of three-way rotating positioning screws for fixing the U-shaped plate. The bottom end of the three-way rotating positioning screw penetrates the L-shaped bent plate, and the nut of the three-way rotating positioning screw is located at the bottom of the L-shaped bent plate. The three-way rotating positioning screw and the L-shaped bent plate are fixedly connected together by threads.
[0012] In a preferred embodiment, the connecting plate and the L-shaped bend plate are connected by L-shaped bend plate fixing screws. The L-shaped bend plate fixing screws connection method allows the connecting plate to be easily disassembled from the L-shaped bend plate during maintenance, which can be used for replacement, cleaning, and routine maintenance.
[0013] The technical effects and advantages of this utility model are as follows:
[0014] This utility model sets three positioning holes that are adapted to the shape of the product between the limiting pressure plate and the limiting base after clamping. The three positioning holes correspond to different angles of each of the four-way valves of the product. By performing fixed-point processing after rotating the product three times at different angles, the potential quality problems that may occur during multiple clamping of the product can be avoided, thereby ensuring the stability of the product body during the processing.
[0015] The three positioning holes on the limiting pressure plate and the limiting base of this utility model can also form three major point positioning. Through point-to-point conformal clamping, the probability of product deformation due to rebound after clamping is reduced. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 The explosion view of the four-way pipe limiting component and product of this utility model Figure 1 ;
[0018] Figure 3 The explosion view of the four-way pipe limiting component and product of this utility model Figure 2 ;
[0019] Figure 4 This is an exploded view of the limiting pressure plate and the limiting base of this utility model.
[0020] Figure 5 This is a structural schematic diagram of the U-shaped plate and the limiting base of this utility model;
[0021] Figure 6 This is a schematic diagram of the structure of the U-shaped plate and L-shaped curved plate of this utility model;
[0022] Figure 7 for Figure 6 Exploded view.
[0023] The attached figures are labeled as follows:
[0024] 1. Connecting plate; 2. L-shaped bend plate; 3. U-shaped plate; 4. Four-way pipe limiting assembly; 5. T-shaped rotating shaft; 6. T-shaped rotating positioning screw; 7. L-shaped bend plate fixing screw;
[0025] 41. Limiting pressure plate; 42. Limiting base; 43. Single-pass rotating shaft; 44. Single-pass rotating positioning screw; 45. Pressure plate screw; 46. Top column. Detailed Implementation
[0026] 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.
[0027] Refer to the instruction manual appendix Figure 1 This utility model provides a lathe fixture for processing four-way pipes, including a connecting plate 1 connected to a machine tool. An L-shaped bending plate 2 is connected to the side of the connecting plate 1 away from the machine tool. The connecting plate 1 and the L-shaped bending plate 2 are connected by an L-shaped bending plate fixing screw 7. A U-shaped plate 3 is rotatably connected to one side of the L-shaped bending plate 2. A three-way rotating shaft 5 is provided in the middle of the top of the U-shaped plate 3 so that the U-shaped plate 3 and the L-shaped bending plate fixing screw 7 are in the same position every time they rotate. A plurality of three-way rotating positioning screws 6 for fixing the U-shaped plate 3 are provided around the three-way rotating shaft 5. The bottom end of the three-way rotating positioning screw 6 passes through the L-shaped bending plate 2. A four-way pipe limiting component 4 for clamping four-way pipes is installed inside the U-shaped plate 3.
[0028] Specifically, such as Figures 2-5As shown: The four-way pipe limiting assembly 4 includes a limiting pressure plate 41 and a limiting base 42 distributed vertically. The limiting base 42 is used to limit the product from the bottom, and the limiting pressure plate 41 is used to limit the product from the top. Figure 2 and 4 The product to be processed shown is located between the limiting pressure plate 41 and the limiting base 42. A pressure plate screw 45 for fixing the limiting pressure plate 41 is provided on both sides of the top of the limiting pressure plate 41. The bottom end of the pressure plate screw 45 is threaded into the inside of the limiting base 42. The limiting pressure plate 41 and the limiting base 42 can be clamped together by the setting of the pressure plate screw 45.
[0029] Furthermore, both the bottom of the limiting pressure plate 41 and the top of the limiting base 42 are provided with slots adapted to the four-way pipe, such as... Figure 4 As shown, the clamping limit plate 41 and the limit base 42 restrict the four-way tube in the slot after clamping. There are three positioning holes at both ends of the slot. The three positioning holes correspond to the three openings of the four-way tube respectively. The other opening faces upward and passes through the limit plate 41. These three positioning holes correspond to the different angles of each of the four-way tubes of the product. The fixed-point processing is completed after three rotations at different angles, avoiding the quality risks that may exist in the multiple clamping of the product, and thus ensuring the stability of the product body during the processing.
[0030] A single-pass rotating shaft 43 is provided on both sides of the limiting base 42. The single-pass rotating shaft 43 is inserted into the side wall of the U-shaped plate 3. A single-pass rotating positioning screw 44 for fixing the limiting base 42 is provided on both sides of the U-shaped plate 3. Three top columns 46 for supporting the product are installed on the limiting pressure plate 41 to support the product tee at the corresponding external position of the blank, so as to avoid vibration of the knife during processing.
[0031] The specific usage process of the above-mentioned lathe fixture is as follows:
[0032] First, after the connecting plate 1 is connected to the machine tool, the lathe fixture is fixed at the machine tool spindle position. The product is installed by matching the conformal position of the limiting base 42. The limiting pressure plate 41 is placed at the upper position of the product. The product is fixed by tightening the pressure plate screw 45 onto 21. Among them, the three top pillars 46 correspond to the clamping positions of the product. After a light touch, the product is clamped and processed.
[0033] When rotating the second channel, it rotates to the designated position via the single-channel rotating shaft 43 on the U-shaped plate 3, and is then fixed by the single-channel rotating positioning screws 44 at both ends of the U-shaped plate 3, thus completing the processing.
[0034] When rotating the third valve, the tee rotating shaft 5 on the L-shaped bent plate 2 is rotated to the designated position, and then fixed by the tee rotating positioning screw 6 on the U-shaped plate 3 to complete the processing;
[0035] When rotating the fourth channel, the three-way rotating shaft 5 on the U-shaped plate 3 is rotated to the specified angle position, and finally fixed by the three-way rotating positioning screw 6 to complete the last channel processing.
[0036] The entire processing only requires one clamping. Through multiple rotations and fixed-point processing, the potential quality problems that may occur when the product is clamped multiple times can be avoided, thus ensuring the stability of the product body during the processing.
[0037] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A lathe fixture for machining four-way pipes, comprising a connecting plate (1) connected to a machine tool, characterized in that: The connecting plate (1) is connected to an L-shaped bending plate (2) on the side away from the machine tool. A U-shaped plate (3) is rotatably connected to one side of the L-shaped bending plate (2). A four-way pipe limiting component (4) for clamping four-way pipes is installed inside the U-shaped plate (3). The four-way pipe limiting assembly (4) includes a limiting pressure plate (41) and a limiting base (42) distributed vertically. The bottom of the limiting pressure plate (41) and the top of the limiting base (42) are provided with slots that are compatible with the four-way pipe. After clamping, the limiting pressure plate (41) and the limiting base (42) restrict the four-way pipe in the slots. There are three positioning holes at both ends of the slots, and the three positioning holes correspond to the three openings of the four-way pipe respectively.
2. The lathe fixture for machining a four-way pipe according to claim 1, characterized in that: The limiting base (42) is provided with a single-pass rotating shaft (43) on both sides. The single-pass rotating shaft (43) is inserted into the side wall of the U-shaped plate (3). The U-shaped plate (3) is provided with a single-pass rotating positioning screw (44) on both sides for fixing the limiting base (42).
3. The lathe fixture for machining a four-way pipe according to claim 1, characterized in that: The limiting pressure plate (41) is equipped with three top columns (46) for supporting the product, which are used to support the product tee at the corresponding external position of the blank.
4. The lathe fixture for machining a four-way pipe according to claim 1, characterized in that: The limiting pressure plate (41) has a pressure plate screw (45) on each of its top two sides for fixing the limiting pressure plate (41), and the bottom end of the pressure plate screw (45) is threaded into the limiting base (42).
5. A lathe fixture for machining a four-way pipe according to claim 1, characterized in that: The top center of the U-shaped plate (3) is provided with a three-way rotating shaft (5) so that the fixing screws (7) of the U-shaped plate (3) and the L-shaped bent plate are in the same position every time they rotate; The three-way rotating shaft (5) is provided with a number of three-way rotating positioning screws (6) for fixing the U-shaped plate (3) around its perimeter, and the bottom end of the three-way rotating positioning screws (6) penetrates the L-shaped bent plate (2).
6. A lathe fixture for machining a four-way pipe according to claim 1, characterized in that: The connecting plate (1) and the L-shaped bend plate (2) are connected by L-shaped bend plate fixing screws (7).