Natural gas common rail rough machining clamp

By designing an automatic clamping roughing fixture for natural gas common rail, and utilizing the contour-following structure of the sliding seat and the fixed seat driven by a hydraulic cylinder, the problem of cumbersome fixing of natural gas common rail is solved, and safety and efficiency are improved.

CN223889517UActive Publication Date: 2026-02-10SUZHOU CHUNCUI MACHINERY CO LTD
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Patent Information

Application Number
CN202520269225.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-19
Publication Date
2026-02-10
Estimated Expiration
2035-02-19

AI Technical Summary

Technical Problem

The existing common rail system for natural gas is cumbersome, leading to safety hazards and low processing efficiency.

Method used

A roughing fixture for natural gas common rail is adopted, which uses a hydraulic cylinder to drive the contour structure of the sliding seat and the fixed seat, and achieves automatic clamping by moving the wedge block, replacing manual operation.

Benefits of technology

It improves the fixed safety and processing efficiency of natural gas common rail and simplifies the operation process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a natural gas common rail rough machining clamp which comprises a bottom plate, a strip-shaped groove is formed in the bottom plate, a V-shaped supporting seat is arranged at the bottom of the strip-shaped groove, a fixed seat is arranged on the upper end face of one side of the strip-shaped groove, and a sliding seat is arranged on the upper end face of the other side of the strip-shaped groove in a sliding mode. The sliding seat is driven by a driving source to move towards the fixed seat, and a profiling structure matched with the natural gas common rail in shape is arranged on the end face, opposite to the sliding seat, of the fixed seat. The natural gas common rail can be fixed conveniently and quickly, the safety performance can be improved, and the machining efficiency can be improved.
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Description

Technical Field

[0001] This utility model relates to the field of fixtures, and in particular to a roughing fixture for natural gas common rail. Background Technology

[0002] The common rail system for natural gas requires rough machining and milling. Due to its irregular shape, the common rail needs to be mounted on a fixture and secured with bolts before being milled by a CNC machining center. This method of fixing is cumbersome, requires operators to work on the machining center, poses certain safety hazards, and is manual and inefficient. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a natural gas common rail roughing fixture that is convenient, quick, safe, and efficient in fixing natural gas common rails.

[0004] To achieve the above objectives, one of the technical solutions adopted by this utility model is: a rough machining fixture for natural gas common rail, including a base plate, a strip groove provided on the base plate, a V-shaped support seat provided at the bottom of the strip groove, a fixed seat provided on the upper end face of one side of the strip groove, and a sliding seat slidably provided on the upper end face of the other side of the strip groove. The sliding seat is driven by a drive source to move towards the fixed seat, and the end faces of the fixed seat and the sliding seat facing each other are provided with a contouring structure matching the shape of the natural gas common rail.

[0005] The beneficial effects of this utility model of a rough machining fixture for natural gas common rail are that, by driving the sliding seat to move towards the fixed seat, the two contoured structures are brought closer together, thereby clamping the natural gas common rail product and fixing it, replacing manual clamping and ensuring high safety performance; the method of clamping the natural gas common rail by moving the sliding seat is simple and quick, improving processing efficiency.

[0006] Preferably, the driving source includes a hydraulic cylinder with its extension shaft facing upwards. A wedge block is connected to the end of the extension shaft of the hydraulic cylinder. The wedge block is farther away from the slide seat from the strip groove. The side of the wedge block facing the slide seat is an inclined plane, and the side away from the slide seat is a vertical plane. By driving the wedge block to move in the longitudinal direction, the slide seat is forced to move towards the fixed seat.

[0007] Preferably, a fixing block is fixed on the base plate, the wedge block is located between the fixing block and the sliding seat, the sides of the fixing block and the sliding seat facing each other are respectively provided with a vertical slide groove and an inclined slide groove, the two sides of the wedge block are respectively provided with a vertical insert and an inclined insert, and the vertical insert and the inclined insert can move along the vertical slide groove and the inclined slide groove respectively.

[0008] Preferably, the V-shaped support is rotatably mounted on the base plate to improve the fault tolerance of the natural gas common rail placement.

[0009] Preferably, a pair of horizontal locking blocks are provided on the base plate, and horizontal locking slots are provided on the opposite sides of the V-shaped support. The pair of horizontal locking blocks are respectively locked into the two horizontal locking slots. The thickness of the horizontal locking blocks is less than the width of the horizontal locking slots, which further improves the fault tolerance of the natural gas common rail placement.

[0010] Preferably, two strip grooves are provided, the fixed seat is disposed between the two strip grooves, and the sliding seat is disposed on the outside of the two strip grooves. This allows for simultaneous clamping of two strip grooves, improving processing efficiency.

[0011] Preferably, at least two sliding seats and V-shaped support seats are provided on each side. This ensures stable support for the natural gas common rail.

[0012] Preferably, both ends of the base plate are provided with mounting plates, and the mounting plates are provided with mounting holes. With the provision of mounting plates and mounting holes, it can be installed on a CNC machining center. Attached Figure Description

[0013] Figure 1 This is a perspective view of this embodiment;

[0014] Figure 2 This is a top view of this embodiment;

[0015] Figure 3 This is a perspective view showing the disassembly of the base plate in this embodiment;

[0016] Figure 4 This is a perspective view showing the disassembly of the base plate and the two wedge blocks in this embodiment;

[0017] Figure 5 This is a perspective view of the V-shaped support base and the horizontal locking block in this embodiment;

[0018] Figure 6 This is a perspective view of the V-shaped support base in this embodiment.

[0019] In the diagram: 1. Base plate; 2. Strip groove; 3. V-shaped support seat; 3a. Horizontal slot; 4. Fixed seat; 5. Sliding seat; 5a. Inclined slide; 6. Contouring structure; 7. Hydraulic cylinder; 8. Wedge block; 8a. Inclined surface; 8b. Vertical surface; 8c. Vertical insert block; 8d. Inclined insert block; 9. Fixed block; 9a. Vertical slide; 10. Horizontal slot; 11. Mounting plate; 12. Mounting hole; 13. Natural gas common rail. Detailed Implementation

[0020] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0021] See Figures 1 to 6 As shown, this embodiment discloses a rough machining fixture for natural gas common rails, including a base plate 1. Two strip grooves 2 are provided on the base plate 1. A V-shaped support seat 3 is provided at the bottom of each strip groove 2. Each V-shaped support seat 3 is rotatably mounted on the base plate 1 to improve the fault tolerance of the natural gas common rail placement. A fixed seat 4 is provided on the upper end face of one side of each strip groove 2. The fixed seat 4 is located between the two strip grooves 2. A sliding seat 5 is slidably provided on the upper end face of the other side of each strip groove 2. The two sliding seats 5 are located on the outside of the two strip grooves 2, so that two natural gas common rails can be clamped at the same time. The sliding seat 5 is driven by a drive source to move towards the fixed seat 4 (in this embodiment, it refers to translation, which can be achieved by setting a horizontal guide rail and a matching slider between the sliding seat 5 and the base plate 1). The end faces of the fixed seat 4 and the sliding seat 5 facing each other are provided with a contour structure 6 that matches the shape of the natural gas common rail.

[0022] The driving source includes a hydraulic cylinder 7, with the telescopic shaft of the hydraulic cylinder 7 facing upward. A wedge block 8 is connected to the end of the telescopic shaft of the hydraulic cylinder 7. The wedge block 8 is farther away from the sliding seat 5 from the strip groove 2. The side of the wedge block 8 facing the sliding seat 5 is an inclined surface 8a, and the side away from the sliding seat 5 is a vertical surface 8b. By driving the wedge block 8 to move in the longitudinal direction, the sliding seat 5 is forced to move towards the fixed seat 4.

[0023] A fixing block 9 is fixed on the base plate 1. A wedge block 8 is located between the fixing block 9 and the sliding seat 5. The sides of the fixing block 9 and the sliding seat 5 facing each other are respectively provided with a vertical slide groove 9a and an inclined slide groove 5a. The two sides of the wedge block 8 are respectively provided with a vertical insert 8c and an inclined insert 8d. The vertical insert 8c and the inclined insert 8d can move along the vertical slide groove 9a and the inclined slide groove 5a respectively.

[0024] A pair of horizontal locking blocks 10 are provided on the base plate 1. Horizontal locking slots 3a are provided on the opposite sides of the V-shaped support base 3. The pair of horizontal locking blocks 10 are respectively inserted into the two horizontal locking slots 3a. The thickness of the horizontal locking blocks 10 is less than the width of the horizontal locking slots 3a, which further improves the fault tolerance of the natural gas common rail placement.

[0025] In order to stably support the natural gas common rail, each side of the sliding seat 5 and V-shaped support seat 3 is provided with at least two.

[0026] Mounting plates 11 are provided at both ends of the base plate 1. Mounting plates 11 are provided with mounting holes 12. With the mounting plates 11 and mounting holes 12, it can be installed on a CNC machining center.

[0027] The working principle of this embodiment is as follows:

[0028] The vertical groove 9a of the fixed block 9 cooperates with the vertical insert 8c of the wedge block 8. The vertical groove 9a is used to guide the longitudinal movement (i.e., up and down movement) of the wedge block 8. In this embodiment, the hydraulic cylinder 7 drives the wedge block 8 to rise. The wedge block 8 moves upward with the vertical groove 9a. Since the inclined insert 8d of the wedge block 8 is inclinedly engaged with the inclined groove 5a of the sliding seat 5, and the sliding seat 5 can only slide horizontally, it will move closer to or away from the fixed seat 4 along the rise and fall of the inclined insert 8d. When the sliding seat 5 approaches the fixed seat 4, it clamps the natural gas common rail 13. When the sliding seat 5 releases the fixed seat 4, it releases the natural gas common rail 13. Then, the natural gas common rail 13 is removed manually or by a robot and replaced with the natural gas common rail 13 to be rough-processed.

[0029] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A roughing fixture for natural gas common rail, comprising a base plate (1), characterized in that: The base plate (1) is provided with a strip groove (2), the bottom of the strip groove (2) is provided with a V-shaped support seat (3), a fixed seat (4) is provided on the upper end face of one side of the strip groove (2), and a sliding seat (5) is slidably provided on the upper end face of the other side of the strip groove (2). The sliding seat (5) is driven by a drive source to move towards the fixed seat (4). The end faces of the fixed seat (4) and the sliding seat (5) facing each other are provided with a contour structure (6) that matches the shape of the natural gas common rail.

2. The natural gas common rail roughing fixture according to claim 1, characterized in that: The driving source includes a hydraulic cylinder (7), the telescopic shaft of the hydraulic cylinder (7) faces upward, and a wedge block (8) is connected to the end of the telescopic shaft of the hydraulic cylinder (7). The wedge block (8) is farther away from the strip groove (2) than the sliding seat (5). The side of the wedge block (8) facing the sliding seat (5) is an inclined surface (8a), and the side away from the sliding seat (5) is a vertical surface (8b). By driving the wedge block (8) to move in the longitudinal direction, the sliding seat (5) is forced to move towards the fixed seat (4).

3. The natural gas common rail roughing fixture according to claim 2, characterized in that: A fixing block (9) is fixed on the base plate (1). The wedge block (8) is located between the fixing block (9) and the sliding seat (5). The sides of the fixing block (9) and the sliding seat (5) facing each other are respectively provided with a vertical slide groove (9a) and an inclined slide groove (5a). The two sides of the wedge block (8) are respectively provided with a vertical insert (8c) and an inclined insert (8d). The vertical insert (8c) and the inclined insert (8d) can move along the vertical slide groove (9a) and the inclined slide groove (5a) respectively.

4. The natural gas common rail roughing fixture according to claim 1, characterized in that: The V-shaped support (3) is rotatably mounted on the base plate (1).

5. The natural gas common rail roughing fixture according to claim 1, characterized in that: A pair of horizontal locking blocks (10) are provided on the base plate (1), and horizontal slots (3a) are provided on the opposite sides of the V-shaped support base (3). The pair of horizontal locking blocks (10) are respectively inserted into the two horizontal slots (3a), and the thickness of the horizontal locking block (10) is less than the width of the horizontal slot (3a).

6. The natural gas common rail roughing fixture according to claim 1, characterized in that: Two strip grooves (2) are provided, the fixed seat (4) is provided between the two strip grooves (2), and the sliding seat (5) is provided on the outside of the two strip grooves (2).

7. The natural gas common rail roughing fixture according to claim 1, characterized in that: Each side of the sliding seat (5) and V-shaped support seat (3) is provided with at least two.

8. The natural gas common rail roughing fixture according to claim 1, characterized in that: Mounting plates (11) are provided at both ends of the base plate (1), and mounting holes (12) are provided on the mounting plates (11).