Rail forging machine machining clamp

Abstract

The utility model relates to a machining clamp of a rail forging machine. The forged rail comprises a main pipe, a sensor base or an end cover is arranged at the end of the main pipe, a plurality of oil sprayer bases and a support block are further distributed on the main pipe, and an oil inlet pipe connector is arranged on the main pipe and located on the other side of the support block. The machining clamp comprises a bridge plate and a plurality of clamping units arranged on the bridge plate. Each clamping unit comprises a vertical plate fixed to the bridge plate, the two ends of the front side of the vertical plate are each provided with an end clamping mechanism used for clamping the end of a main pipe, and the vertical plate is further provided with an auxiliary clamping mechanism used for clamping an oil inlet pipe connector. A machining window is further formed in the bridge plate below the front side of the vertical plate of each clamping unit. The device can be used for machining parts, needing to be machined, on the forged rail in the upper direction and the lower direction, workpieces do not need to be clamped repeatedly, particularly, the workpieces are more stable when being radially positioned, and the situation that the machining precision and quality are affected due to the fact that the workpieces rotate in the machining process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing fixtures, in particular to a machining fixture for a rail forging machine. Background Art

[0002] At present, in the automotive industry, the control of production costs is becoming more and more stringent, and the requirements for pipe processing are correspondingly improved. The brazing process has a great influence on the spatial position of the pipe. Therefore, it is particularly important to control the size and position deformation of the pipe during the brazing process in the production process. In mass production, how to reduce brazing deformation is very important.

[0003] The fuel rail type internal combustion engine is an oil pipeline in front of the injector that supplies fuel to the cylinder. It usually includes a fuel inlet and a seat sleeve connected to multiple injectors. It is used to store fuel and suppress the pressure fluctuations caused by the high-pressure pump supply and the injector injection to ensure the stability of the system pressure.

[0004] When machining the oil rail, the oil rail forging needs to be clamped and fixed by a machining fixture. Due to the special shape of the oil rail forging, it is difficult to accurately clamp and position the oil rail when fixing the oil rail forging by relying on traditional fixtures. Manual calibration is often required, which is complicated, time-consuming and inconvenient to use.

[0005] Currently, Figure 1 , 2 Such a forged rail needs to be machined. The forged rail includes a main pipe A2, at the end of which is a sensor seat A5 (or end cover), on which are also distributed several injector seats A3 and bracket blocks A4, and on which is an oil inlet pipe joint A1 located on the other side of the bracket block A4. The machining required for this product mainly includes chamfering the end of the sensor seat A5 (or end cover), and milling and processing through holes on the upper and lower end faces of the bracket block A4. When performing the above-mentioned machining on the bracket block A4, it is often necessary to perform machining in the upper and lower directions. In order to improve work efficiency and machining quality, it is necessary to avoid repeated clamping and positioning of the workpiece as much as possible.

[0006] In order to solve the above Figure 1 , 2 The applicant sought the technology in the field to meet the machining requirements of the forged rails shown in the application. For example, the Chinese utility model patent specification (grant announcement number: CN219805710U) discloses a cutting fixture for oil rail forgings. However, in actual use, it was found that the fixture was not suitable for machining the forged rails described in the application. The problem is:

[0007] (1)The processing fixture of CN219805710 uses a supporting positioning for the radial positioning of the main pipe because the machining of the components in the middle of the main pipe (such as the support block) only requires one direction. However, for the part in the middle of the main pipe of the product of the present application (such as the support), since machining in two directions of up and down is required, only using the supporting positioning is not enough. Otherwise, after machining in one direction, the workpiece needs to be removed and then turned for re-clamping and machining, which makes the operation more troublesome and the machining accuracy and quality are prone to problems.

[0008] (2)The processing fixture of CN219805710 uses a supporting positioning for the radial positioning of the main pipe, and its positioning effect is not stable either. During the machining process, it is inevitable that the main pipe will rotate to a certain extent, directly affecting the machining accuracy and quality. Summary of the Utility Model

[0009] The purpose of the present utility model is to provide a processing fixture for a forging rail machine, which mainly solves the technical problems existing in the above-mentioned prior art. It can machine the parts that need to be machined on the forging rail in two directions of up and down without repeated clamping of the workpiece. Especially when positioning the workpiece radially, it is more stable, avoiding the rotation of the workpiece during the machining process and affecting the machining accuracy and quality.

[0010] To solve the above technical problems, the present utility model is realized as follows:

[0011] A processing fixture for a forging rail machine, characterized in that:

[0012] The forging rail includes a main pipe, a sensor seat or an end cover is arranged at the end of the main pipe, a plurality of injector seats and support blocks are also distributed on the main pipe, and an oil inlet pipe joint is arranged on the other side of the main pipe where the support block is located;

[0013] The processing fixture includes a cross plate and a plurality of clamping units arranged on the cross plate; among them:

[0014] Each clamping unit includes a vertical plate fixed on the cross plate. At both ends of the front side of the vertical plate, there are respectively end clamping mechanisms for clamping the end of the main pipe, and there is also an auxiliary clamping mechanism for clamping the oil inlet pipe joint on the vertical plate; there is also a processing window on the cross plate below the front side of the vertical plate of each clamping unit.

[0015] The described processing fixture for a forging rail machine is characterized in that: on the cross plate of the front side of the vertical plate of each clamping unit, there is also an auxiliary support mechanism for supporting the main pipe and an auxiliary pressing mechanism for pressing the main pipe.

[0016] The described processing fixture for a forging rail machine is characterized in that: a reinforcing rib is arranged between the rear side of the vertical plate of each clamping unit and the cross plate.

[0017] The described forging rail machine processing fixture is characterized in that: the end clamping mechanism includes a clamping pliers fixed on the vertical plate, the clamping pliers are provided with a sliding groove, upper and lower parts in the sliding groove are respectively provided with a clamping seat (62), the clamping seats are both provided with V-shaped blocks, and an end clamping opening is formed between the two V-shaped blocks.

[0018] The described forging rail machine processing fixture is characterized in that: the clamping seats of the end clamping mechanism are hydraulically driven, and the hydraulic drive pipelines are arranged in the bridge plate.

[0019] The described forging rail machine processing fixture is characterized in that: the auxiliary clamping mechanism includes an auxiliary clamping pliers fixed on the vertical plate, the auxiliary clamping pliers are provided with a sliding groove, upper and lower parts in the sliding groove are respectively provided with an auxiliary clamping seat, the auxiliary clamping seats are both provided with auxiliary V-shaped blocks, and an auxiliary clamping opening for clamping the oil inlet pipe joint is formed between the two auxiliary V-shaped blocks.

[0020] The described forging rail machine processing fixture is characterized in that: the auxiliary clamping seats of the auxiliary clamping mechanism are hydraulically driven, and the hydraulic drive pipelines are arranged in the bridge plate.

[0021] The described forging rail machine processing fixture is characterized in that: the auxiliary pressing mechanism includes a support, a hydraulic lifting rod arranged on the support, and a swing arm, the hydraulic lifting rod is connected to one end of the swing arm, and a V-shaped pressing block is arranged at the other end of the swing arm.

[0022] The described forging rail machine processing fixture is characterized in that: the drive pipeline of the hydraulic lifting rod is arranged in the bridge plate.

[0023] The described forging rail machine processing fixture is characterized in that: a plurality of clamping units are arranged in parallel on the bridge plate.

[0024] The beneficial effects of the present utility model are:

[0025] 1. When the present utility model is used, the auxiliary clamping mechanism is used to clamp the oil inlet pipe joint to achieve stable radial clamping and positioning of the workpiece, avoiding axial or radial displacement of the workpiece during the machining process. At the same time, since there is also a machining window on the bridge plate below the front side of the vertical plate of each clamping unit, the machining tool can also pass through the machining window and machine the part to be machined from below (such as: milling the lower end face of the support block and machining through holes), without having to re-clamp the workpiece after flipping it. It not only improves the machining efficiency, but also improves the machining accuracy and quality.

[0026] 2. In the present utility model, the end clamping mechanism drives two clamping seats to approach each other relatively through hydraulic pressure so as to form an end clamping opening between two V-shaped blocks to clamp the end of a workpiece. By means of hydraulic drive, its synchronism is good and it has a certain buffering effect during machining, avoiding damage to the workpiece by the clamping opening caused by jumping during machining. The same effect is also reflected in the auxiliary clamping mechanism and the auxiliary pressing mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a structural schematic diagram of the forging rail to be machined by the present utility model Figure 1 .

[0028] Figure 2 is a structural schematic diagram of the forging rail to be machined by the present utility model Figure 2 .

[0029] Figure 3 is a structural schematic diagram of a preferred embodiment of the machining fixture of the forging rail machine of the present utility model.

[0030] Figure 4 is a structural schematic diagram of the end clamping mechanism in the machining fixture of the forging rail machine of the present utility model.

[0031] Figure 5 is a structural schematic diagram of the auxiliary pressing mechanism in the machining fixture of the forging rail machine of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The present utility model will be further introduced below in conjunction with embodiments.

[0033] Please refer to Figures 3 - 5 , the present utility model discloses a machining fixture for a forging rail machine, and its structure is as follows:

[0034] As Figure 1 , 2 , it is the structure of the forging rail to be machined by the machining fixture of the present utility model for forging rail. The forging rail includes a main pipe A2, a sensor seat A5 or an end cover is arranged at the end of the main pipe A2, a plurality of injector seats A3 and support blocks A4 are also distributed on the main pipe A2, and an oil inlet pipe joint A1 is arranged on the main pipe A2 on the other side of the support block A4. The machining to be performed is to machine a chamfer on the sensor seat A5 or the end cover, and to mill the upper and lower end faces of the support block A4 and machine through holes. When performing the above machining on the support block A4, machining needs to be carried out in two directions of up and down, and repeated clamping of the workpiece should also be avoided.

[0035] In the present utility model, the machining fixture includes a bridge plate 1 and a plurality of clamping units arranged on the bridge plate 1; wherein:

[0036] Each clamping unit includes a vertical plate 2 fixed on the cross slide 1. At both ends of the front side of the vertical plate 2, there are respectively provided end clamping mechanisms 6 for clamping the ends of the main pipe 2. The vertical plate 2 also has an auxiliary clamping mechanism 7 for clamping the oil inlet pipe joint A1. On the cross slide 1 below the front side of the vertical plate 2 of each clamping unit, there is also a machining window 11.

[0037] In the utility model, the auxiliary clamping mechanism 7 is used to clamp the oil inlet pipe joint A1 to achieve stable radial clamping and positioning of the workpiece, and avoid axial or radial displacement of the workpiece during machining. At the same time, since there is also a machining window 11 on the cross slide 1 below the front side of the vertical plate 2 of each clamping unit, machining tools can also pass through the machining window 11 and machine the parts to be machined from below (such as: milling the lower end face of the support block A4 and machining through holes), without the need to re-clamp the workpiece after flipping it. It not only improves the machining efficiency, but also improves the machining accuracy and quality.

[0038] In the utility model, between the rear side of the vertical plate 2 of each clamping unit and the cross slide 1, there is a reinforcing rib 5, which increases the strength of the fixture.

[0039] In order to further achieve stable positioning of the workpiece and avoid displacement of the workpiece during machining, on the front side cross slide 1 of the vertical plate 2 of each clamping unit, there is also an auxiliary support mechanism 3 for supporting the main pipe A2 and an auxiliary pressing mechanism 4 for pressing the main pipe A2. Among them: as Figure 5 , the auxiliary pressing mechanism 4 includes a support 41, a hydraulic lifting rod 42 arranged on the support 41, and a swing arm 43. The hydraulic lifting rod 42 is connected to one end of the swing arm 43, and a V-shaped pressing block 44 is arranged at the other end of the swing arm 43. During use, the swing arm 43 is driven to swing by the hydraulic lifting rod 42, so that the V-shaped pressing block 44 presses the main pipe A2. In addition, the driving pipeline of the hydraulic lifting rod 42 is arranged inside the cross slide 1.

[0040] In the utility model, as Figure 4 shown: the end clamping mechanism 6 includes a combined clamp 61 fixed on the vertical plate 2. The combined clamp 61 has a chute, and a clamping seat 62 is respectively arranged at the upper and lower parts in the chute. A V-shaped block 63 is arranged on each clamping seat 62, and an end clamping opening is formed between the two V-shaped blocks 63. The clamping seat 62 of the end clamping mechanism 6 is hydraulically driven, and the hydraulic driving pipeline is arranged inside the cross slide 1. During use, the two clamping seats 62 are driven to approach each other hydraulically so that an end clamping opening is formed between the two V-shaped blocks 63 to clamp the end of the workpiece. By the hydraulic driving method, its synchronization is good and it has a certain buffering effect during machining, avoiding damage to the workpiece by the clamping opening due to the jump during machining.

[0041] Similarly, in the present utility model, the auxiliary clamping mechanism 7 includes an auxiliary clamping tongs fixed on the vertical plate. The auxiliary clamping tongs are provided with a chute, and an upper part and a lower part in the chute are respectively provided with an auxiliary clamping seat. Auxiliary V-shaped blocks are arranged on the auxiliary clamping seats, and an auxiliary clamping opening for clamping the oil inlet pipe joint A1 is formed between the two auxiliary V-shaped blocks. The auxiliary clamping seats of the auxiliary clamping mechanism 7 are hydraulically driven, and the hydraulic drive pipeline is arranged in the bridge plate 1.

[0042] As Figure 3 shown, a plurality of the clamping units are arranged in parallel on the bridge plate 1, so that a plurality of workpieces can be clamped or processed simultaneously, and the hydraulic drive pipelines arranged in the bridge plate 1 are used synchronously.

[0043] In summary, the above are only the preferred embodiments of the present utility model, and are not used to limit the scope of implementation of the present utility model. That is, all equivalent changes and modifications made to the content of the scope of the patent application of the present utility model should fall within the technical scope of the present utility model.

Claims

1. A rail forging machine fixture, characterized in that : The forged rail comprises a main pipe (A2), a sensor seat (A5) or an end cover is arranged at the end of the main pipe (A2), a plurality of injector seats (A3) and a bracket block (A4) are distributed on the main pipe (A2), and an oil inlet pipe joint (A1) is arranged on the other side of the bracket block (A4) on the main pipe (A2); The processing fixture comprises a bridge plate (1) and a plurality of clamping units arranged on the bridge plate (1); wherein: Each clamping unit comprises a vertical plate (2) fixed on a bridge plate (1), and end clamping mechanisms (6) for clamping the end of a main pipe (A2) are respectively arranged at two ends of the front side of the vertical plate (2), and the vertical plate (2) also has an auxiliary clamping mechanism (7) for clamping an oil inlet pipe joint (A1); the bridge plate (1) below the front side of the vertical plate (2) of each clamping unit also has a processing window (11).

2. The rail forging machine processing fixture according to claim 1, characterized in that: An auxiliary support mechanism (3) for supporting the main pipe (A2) and an auxiliary clamping mechanism (4) for clamping the main pipe (A2) are also provided on the front bridge plate (1) of the vertical plate (2) of each clamping unit.

3. The rail forging machine processing fixture according to claim 1, characterized in that: A reinforcing rib (5) is provided between the rear side of the vertical plate (2) of each clamping unit and the bridge plate (1).

4. The rail forging machine processing fixture according to claim 1, characterized in that: The end clamping mechanism (6) comprises a clamp (61) fixed on the vertical plate (2), the clamp (61) having a slide groove, a clamp seat (62) being provided at the upper and lower parts of the slide groove, respectively, a V-shaped block (63) being provided on the clamp seat (62), and an end clamping opening being formed between the two V-shaped blocks (63).

5. The rail forging machine processing fixture according to claim 4, characterized in that: The clamping seat (62) of the end clamping mechanism (6) is hydraulically driven, and the hydraulic drive pipeline is arranged in the bridge plate (1).

6. The rail forging machine processing fixture according to claim 1, characterized in that: The auxiliary clamping mechanism (7) comprises an auxiliary clamp fixed on the vertical plate, the auxiliary clamp having a slide groove, an auxiliary clamp seat being respectively arranged at the upper and lower parts of the slide groove, and an auxiliary V-shaped block being arranged on the auxiliary clamp seat, and an auxiliary clamping opening for clamping the oil inlet pipe joint (A1) is formed between the two auxiliary V-shaped blocks.

7. The rail forging machine processing fixture according to claim 6, characterized in that: The auxiliary clamping seat of the auxiliary clamping mechanism (7) is hydraulically driven, and the hydraulic drive pipeline is arranged in the bridge plate (1).

8. The rail forging machine processing fixture according to claim 2, characterized in that: The auxiliary clamping mechanism (4) comprises a support (41), a hydraulic lifting rod (42) arranged on the support (41), and a swing arm (43); the hydraulic lifting rod (42) is connected to one end of the swing arm (43); and the other end of the swing arm (43) is provided with a V-shaped clamping block (44).

9. The rail forging machine processing fixture according to claim 8, characterized in that: The driving pipeline of the hydraulic lifting rod (42) is arranged in the bridge deck (1).

10. The rail forging machine processing fixture according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9, characterized in that: A plurality of the clamping units are arranged in parallel on the bridge plate (1).

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