Fixing tool for elbow machine machining

Abstract

The utility model discloses a fixing tool for elbow machining, which relates to the field of machining and comprises a tool body and a hollow area arranged at the middle end of the tool body, and a first inner threaded hole and a second inner threaded hole are respectively arranged on the left side and the upper end of the tool body. An inner lower side face is arranged at the lower end of the hollow-out area in the tool body. According to the fixing tool for bend machining, a workpiece is fixed through the hollowed-out area formed in the tool body, the inner lower side face and the inner right side face are used for storing micro-welding 90-degree bend blank square stock, the right angle and the circular groove of the micro-welding 90-degree bend blank square stock are protected to be located on the back face of the tool through the arrangement of the receding holes, and the cover plate is stored in the circular groove; according to the fixing tool device, a workpiece can be accurately positioned and clamped, the workpiece can be kept at the correct position and posture in the machining process, machining errors are reduced, and therefore the size precision, the shape precision and the position precision of the machined workpiece are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, specifically a fixed fixture for machining elbows. Background Technology

[0002] In elbow machining, the fixed fixture is mainly used to ensure the accurate positioning and stability of the workpiece during the machining process. The selection and design of the fixed fixture will directly affect the efficiency and quality of elbow machining. When designing the fixed fixture, factors such as the material, size and machining method of the workpiece need to be considered.

[0003] In the prior art, when bending a workpiece using a bending machine, if it is necessary to process a 3 / 4-inch micro-welded 90° workpiece, the fixed tooling is prone to damage to the workpiece.

[0004] To overcome the above shortcomings, a prior art Chinese patent (publication number CN221809122U) discloses a fixing fixture for processing the end face of an elbow, including a base. The base has a first strip-shaped groove in the middle, which runs along the front-back direction. A fixing clamp is provided on the base, with its left and right ends respectively located on both sides of the first strip-shaped groove. The base also has a back plate on its rear side, and a fixing device is provided on the upper part of the back plate. This allows for the quick placement and processing of elbow products, while also accommodating the fixing of products of various specifications, facilitating the implementation of processing equipment such as vertical lathes.

[0005] While existing technologies can overcome the shortcomings mentioned above, other problems still exist in their operation. For example, when processing 3 / 4-inch micro-welded 90° workpieces, the functional tooling needs to be adjusted according to the workpiece. If the accuracy after adjustment is not good, it is easy to cause deviations in the workpiece during processing, resulting in poor workpiece accuracy. Processing a large number of workpieces is also quite cumbersome. Utility Model Content

[0006] The purpose of this utility model is to provide a fixed fixture for bending head machining, so as to solve the problem mentioned in the background art that when machining 3 / 4-inch micro-welded 90° workpieces, the functional fixture needs to be adjusted according to the workpiece. If the accuracy after adjustment is not good, it is easy to cause deviation of the workpiece during the machining process, resulting in poor workpiece accuracy and making the machining of a large number of workpieces cumbersome.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a fixed fixture for bending head machining, comprising a fixture body and a hollow area opened in the middle of the fixture body, wherein a first internal thread hole and a second internal thread hole are respectively opened on the left side and the upper end of the fixture body; an inner lower side is provided at the lower end of the hollow area inside the fixture body, and an inner right side is provided on the right side of the hollow area inside the fixture body, and an avoidance hole is provided at the junction of the inner right side and the inner lower side.

[0008] Furthermore, a circular groove is provided on the back of the tooling body, and a cover plate is welded inside the circular groove.

[0009] Furthermore, an electric telescopic rod is fixedly installed at the rear end of the tooling body, and a positioning plate is fixedly installed at the output end of the electric telescopic rod. A pressure rod is installed at the front end of the positioning plate, and the left side of the pressure rod is installed through the interior of the tooling body.

[0010] Furthermore, a damper is fixedly installed at the end of the pressure rod, and a pressure head is installed at the output end of the damper. The pressure head is arc-shaped, and the shape of the pressure head and the pressure rod is a return spring.

[0011] Furthermore, a fixing plate is fixedly installed on the right side of the tooling body, and an air chamber is fixedly installed at the lower end of the fixing plate. A sealing plate is fitted inside the air chamber, and a right-angle rod is fixedly installed on the outer side of the sealing plate.

[0012] Furthermore, the middle end of the right-angle rod passes through the air chamber, and the lower end of the right-angle rod is installed on the upper end of the positioning plate.

[0013] Furthermore, a connecting hose is connected to the right side of the inflation chamber, and an air nozzle is connected to the end of the connecting hose. The rear end of the air nozzle is fixedly installed on the surface of the tooling body, and the output end of the air nozzle is aligned with the hollow area in the middle of the tooling body. A one-way air inlet is installed through the right side of the inflation chamber, and a one-way valve is installed inside the one-way air inlet.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In use, the tooling can be installed on the machine tool by bolts through the first and second internal threaded holes on the outside of the tooling body. The workpiece is fixed by the hollow area opened inside the tooling body. The inner lower side and inner right side are used to store the micro-welded 90° elbow blank square material. The right angle of the micro-welded 90° elbow blank square material is protected by the setting of the avoidance hole. The circular groove is on the back of the tooling. The cover plate is stored in the circular groove and welded to the tooling body to form the entire fixed tooling device. This can accurately position and clamp the workpiece, so that the workpiece maintains the correct position and posture during the processing, reduces processing errors, and thus ensures the dimensional accuracy, shape accuracy and positional accuracy of the processed parts.

[0016] Furthermore, tooling can enable quick clamping and disassembly of workpieces, reducing auxiliary time and improving machine tool utilization. At the same time, some tooling can also enable simultaneous processing of multiple parts or automated processing, further improving production efficiency.

[0017] Furthermore, by using tooling, the clamping and positioning of workpieces becomes more convenient and faster. Operators do not need to spend a lot of time and effort to fix the workpieces, which reduces labor intensity and improves work safety.

[0018] 2. When in use, when the workpiece is placed in the hollow area inside the fixture body, the electric telescopic rod is activated. The activation of the electric telescopic rod pushes or pulls the positioning plate. When the positioning plate moves inward, it drives the pressure rod, which in turn drives the return spring and the pressure head to contact the workpiece inside the hollow area. With the damper, the return spring can be prevented from vibrating back and forth, further improving the fixation stability, preventing the workpiece from shaking during processing, and improving the processing stability.

[0019] Furthermore, an air chamber is set at the bottom of the fixed plate. As the positioning plate moves, it drives the right-angle rod to move. When the right-angle rod moves, it can pull the sealing plate. When the sealing plate is pulled, air is drawn out through the one-way valve inside the one-way air inlet. Conversely, when the sealing plate moves outward, it fits and squeezes the air inside the air chamber along the inside of the air chamber, so that the air is delivered to the jet nozzle through the connecting hose. The jet nozzle blows air into the hollow area inside the tooling body to prevent debris from remaining in the hollow area when the workpiece is bent, which would affect subsequent processing. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0021] Figure 2 This is a side view of the three-dimensional structure of the present invention.

[0022] Figure 3 This is a rear-view three-dimensional structural diagram of the present invention.

[0023] Figure 4 This is a cross-sectional three-dimensional structural diagram of the present invention.

[0024] Figure 5 This is a top-view three-dimensional structural diagram of the pressure rod of this utility model.

[0025] Figure 6 This is a cross-sectional three-dimensional structural diagram of the inflatable chamber of this utility model.

[0026] In the diagram: 1. Tooling body; 2. Inner lower side; 3. Inner right side; 4. Clearance hole; 5. First internal threaded hole; 6. Second internal threaded hole; 7. Circular groove; 8. Cover plate; 9. Electric telescopic rod; 10. Positioning plate; 11. Pressure rod; 12. Damper; 13. Pressure head; 14. Return spring; 15. Fixing plate; 16. Inflation chamber; 17. Right angle rod; 18. Sealing plate; 19. Connecting hose; 20. Jet nozzle; 21. One-way air inlet. Detailed Implementation

[0027] 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.

[0028] Example 1: As Figures 1-4 The technical solution shown is a fixed fixture for bending head machining. In order to solve the problem of low precision during machining, the fixture body 1 and the hollow area opened in the middle of the fixture body 1 are disclosed. The left side and the upper end of the fixture body 1 are respectively provided with a first internal thread hole 5 and a second internal thread hole 6. The lower end of the hollow area inside the fixture body 1 is provided with an inner lower side surface 2. The right side of the hollow area inside the fixture body 1 is provided with an inner right side surface 3. An avoidance hole 4 is opened at the junction of the inner right side surface 3 and the inner lower side surface 2. A circular groove 7 is opened on the back of the fixture body 1, and a cover plate 8 is welded inside the circular groove 7.

[0029] In use, the fixture can be installed on the machine tool by bolts through the first internal threaded hole 5 and the second internal threaded hole 6 on the outside of the fixture body 1. The workpiece is fixed by the hollow area opened inside the fixture body 1. The inner lower side 2 and the inner right side 3 are used to store the micro-welded 90° elbow blank square material. The right angle of the micro-welded 90° elbow blank square material is protected by the setting of the avoidance hole 4. The circular groove 7 is on the back of the fixture. The cover plate 8 is stored in the circular groove 7 and welded to the fixture body 1 to form the entire fixed fixture device. This can accurately position and clamp the workpiece, so that the workpiece maintains the correct position and posture during the processing, reduces processing errors, and thus ensures the dimensional accuracy, shape accuracy and positional accuracy of the processed parts.

[0030] Example 2: Figures 1-5 The technical solution shown, based on Embodiment 1, discloses the following to address the issue of poor stability: an electric telescopic rod 9 is fixedly installed at the rear end of the tooling body 1, and a positioning plate 10 is fixedly installed at the output end of the electric telescopic rod 9. A pressure rod 11 is installed at the front end of the positioning plate 10, and the left side of the pressure rod 11 is installed through the interior of the tooling body 1. A damper 12 is fixedly installed at the end of the pressure rod 11, and a pressure head 13 is installed at the output end of the damper 12. The pressure head 13 is arc-shaped, and the shape of the pressure head 13 and the pressure rod 11 is a return spring 14.

[0031] When in use, the workpiece is placed in the hollow area inside the fixture body 1. By activating the electric telescopic rod 9, the electric telescopic rod 9 pushes or pulls the positioning plate 10. When the positioning plate 10 moves inward, it drives the pressure rod 11, which in turn drives the return spring 14 and the pressure head 13 to contact the workpiece inside the hollow area. With the damper 12, the return spring 14 can be prevented from vibrating back and forth, further improving the fixation stability, preventing the workpiece from shaking during processing, and improving the processing stability.

[0032] Example 3: Figures 1-6 The technical solution shown, based on Embodiment 2, discloses the following to address the problem of debris easily damaging the workpiece: a fixing plate 15 is fixedly installed on the right side of the tooling body 1, and an air chamber 16 is fixedly installed at the lower end of the fixing plate 15. A sealing plate 18 is fitted inside the air chamber 16, and a right-angle rod 17 is fixedly installed on the outer side of the sealing plate 18. The middle end of the right-angle rod 17 passes through the air chamber 16, and the lower end of the right-angle rod 17 is installed on the upper end of the positioning plate 10. A connecting hose 19 is connected to the right side of the air chamber 16, and an air jet 20 is connected to the end of the connecting hose 19. The rear end of the air jet 20 is fixedly installed on the surface of the tooling body 1, and the output end of the air jet 20 is aligned with the hollow area in the middle of the tooling body 1. A one-way air inlet 21 is installed through the right side of the air chamber 16, and a one-way valve is provided inside the one-way air inlet 21.

[0033] An air chamber 16 is provided at the bottom of the fixed plate 15. As the positioning plate 10 moves, the right-angle rod 17 moves. When the right-angle rod 17 moves, it can pull the sealing plate 18. When the sealing plate 18 is pulled, air is drawn out through the one-way valve inside the one-way air inlet 21. Conversely, when the sealing plate 18 moves outward, it presses against the air inside the air chamber 16, causing the air to be delivered to the jet nozzle 20 through the connecting hose 19. The jet nozzle 20 blows air into the hollow area inside the tooling body 1 to prevent debris from remaining in the hollow area when the workpiece is bent, thus affecting subsequent processing.

[0034] 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 fixed fixture for bending head machining, comprising a fixture body (1) and a hollow area opened in the middle of the fixture body (1), wherein a first internal thread hole (5) and a second internal thread hole (6) are respectively opened on the left side and the upper end of the fixture body (1). Its features are: The tool body (1) has an inner lower side surface (2) at the lower end of the hollow area inside, and an inner right side surface (3) is provided on the right side of the hollow area inside, and a clearance hole (4) is provided at the junction of the inner right side surface (3) and the inner lower side surface (2).

2. The fixed fixture for machining elbows according to claim 1, characterized in that: The tooling body (1) has a circular groove (7) on its back side, and a cover plate (8) is welded inside the circular groove (7).

3. The fixed fixture for machining elbows according to claim 1, characterized in that: An electric telescopic rod (9) is fixedly installed at the rear end of the tooling body (1), and a positioning plate (10) is fixedly installed at the output end of the electric telescopic rod (9). A pressure rod (11) is installed at the front end of the positioning plate (10), and the left side of the pressure rod (11) is installed through the interior of the tooling body (1).

4. The fixed fixture for machining elbows according to claim 3, characterized in that: A damper (12) is fixedly installed at the end of the pressure rod (11), and a pressure head (13) is installed at the output end of the damper (12). The pressure head (13) is arc-shaped, and the pressure head (13) and the pressure rod (11) are both in the shape of a return spring (14).

5. The fixed fixture for machining elbows according to claim 1, characterized in that: A fixing plate (15) is fixedly installed on the right side of the tool body (1), and an air chamber (16) is fixedly installed at the lower end of the fixing plate (15). A sealing plate (18) is fitted inside the air chamber (16), and a right-angle rod (17) is fixedly installed on the outside of the sealing plate (18).

6. The fixed fixture for machining elbows according to claim 5, characterized in that: The middle end of the right-angle rod (17) passes through the air chamber (16), and the lower end of the right-angle rod (17) is installed on the upper end of the positioning plate (10).

7. The fixed fixture for machining elbows according to claim 6, characterized in that: The right side of the inflation chamber (16) is connected to a connecting hose (19), and the end of the connecting hose (19) is connected to a jet nozzle (20). The rear end of the jet nozzle (20) is fixedly installed on the surface of the tooling body (1), and the output end of the jet nozzle (20) is aligned with the hollow area in the middle of the tooling body (1). A one-way air inlet (21) is installed through the right side of the inflation chamber (16), and a one-way valve is provided inside the one-way air inlet (21).

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