A vertical wire cutting fixture for piston rings and an operation method

Abstract

The present invention relates to a vertical wire cutting fixture for piston rings and an operation method, belonging to the clamping technical field of vertical wire cutting of mechanical ring-shaped parts. The technical problem to be solved is that when performing vertical wire cutting on piston rings, the general clamping method has high operation difficulty and is cumbersome and complex to use. The adopted solution is as follows: The vertical wire cutting fixture for piston rings and the operation method include a base. Installation grooves are symmetrically opened at both ends of the base. Fixed bolts are provided in the installation grooves of the base. A main body plate is fixedly installed on the upper surface of the base. A cutting groove is opened in the middle of one side of the base. A limiting mechanism is installed on one side of the main body plate. A workpiece is extrusion-fitted on the limiting mechanism. In the present invention, the workpiece piston ring is placed in the V-shaped positioning structure formed by the fixture support block assembly in the natural state for positioning, so that the positioning of the workpiece in the fixture is accurate and the operation is simple. The present invention is applicable to the clamping field of vertical wire cutting of mechanical ring-shaped parts.

Description

Technical Field

[0001] The present invention relates to a vertical wire cutting fixture and operation method for piston rings, belonging to the clamping technical field of vertical wire cutting of mechanical ring-shaped parts. Background Art

[0002] Piston rings are vulnerable parts of diesel engines. Although their structural shapes are simple, the geometric tolerances of the two planes and the outer circle are required to be relatively high, belonging to relatively precise parts. Since the cutting process of the piston ring lap joint is at the end of the entire manufacturing process flow, that is, when cutting and separating, other structural shape elements have been finely processed in place, it is necessary to ensure that operations such as clamping in the cutting and separating process do not damage the dimensions and geometric tolerances that have been processed in place before.

[0003] Due to the inclined lap joint, "Z"-shaped or "S"-shaped overlapping lap joint shapes required for the wire cutting fracture of the piston ring, it is necessary to make the central axis of the piston ring perpendicular to the wire cutting electrode molybdenum wire, that is, to vertically clamp the piston ring perpendicular to the wire cutting workbench surface. The conventional clamping methods of general tools are difficult to operate, cumbersome and complex, and have low efficiency.

[0004] Therefore, it is necessary to provide a new vertical wire cutting fixture and operation method for piston rings to solve the above technical problems. Summary of the Invention

[0005] To solve the above technical problems, the present invention provides a vertical wire cutting fixture and operation method for piston rings.

[0006] The vertical wire cutting fixture and operation method for piston rings provided by the present invention include: a base, installation grooves are symmetrically opened at both ends of the base, fixing bolts are provided in the installation grooves of the base, a main body plate is fixedly installed on the upper surface of the base, a cutting groove is opened in the middle of one side of the base, a limiting mechanism is installed on one side of the main body plate, a workpiece is extrusion-fitted on the limiting mechanism, and the limiting mechanism includes: support blocks, two support blocks are symmetrically and fixedly installed on the upper surface of the base, a lower pressing plate is installed on the top of the support block through a first installation bolt, and a first matching hole that is threadedly connected and matched with the first installation bolt is equidistantly opened on one side of the top of the support block.

[0007] Preferably, an inclined surface that supports and cooperates with the workpiece is opened on the top of the support block.

[0008] Preferably, the limiting mechanism further includes: an upper pressing plate, which is fixedly connected to one side of the main body plate through a second mounting bolt, and a second mating hole for threaded engagement with the second mounting bolts is symmetrically opened at equal intervals on one side of the main body plate. Fixed seats are symmetrically and fixedly installed on both sides of the main body plate. A reinforcing block is provided on the top of the fixed seat, and the reinforcing block is fixedly connected to the side wall of the main body plate. A vertical rod is fixedly installed on the top of the fixed seat, and a top block is fixedly installed at one end of the vertical rod passing through the reinforcing block. A sliding sleeve is slidably connected to the vertical rod, and a limiting bolt is threadedly connected to one side of the sliding sleeve. The two sides of the sliding sleeve away from the limiting bolt are respectively rotatably connected to both ends of the limiting plate through a rotating shaft.

[0009] Preferably, both the lower pressing plate and the upper pressing plate are L-shaped.

[0010] Preferably, a reinforcing rib plate is provided at the bottom end of the fixed seat.

[0011] Preferably, an avoidance groove for cooperating with the workpiece is provided on one side of the limiting plate.

[0012] Preferably, an installation column for cooperating with the limiting plate is provided at one end of the sliding sleeve away from the limiting bolt.

[0013] The present invention also provides an operation method for a piston ring vertical wire cutting fixture, including:

[0014] 1) Equipment assembly. The staff places the base flat on the platform, and then fixes and installs the base (1) through the fixing bolts, and then installs the limiting mechanism.

[0015] 2) Workpiece clamping. Lift the limiting plate to the top of the vertical rod, then place the workpiece on the supporting block, then lower and rotate the limiting plate to support the workpiece on the supporting block. Then, the staff presses and fastens the workpiece through the lower pressing plate and the upper pressing plate to limit the position of the workpiece, and then performs the cutting work on the workpiece.

[0016] Compared with the related technology, the piston ring vertical wire cutting fixture and operation method provided by the present invention have the following beneficial effects:

[0017] The present invention provides a piston ring vertical wire cutting fixture and an operation method, in...

[0018] 1. The piston ring vertical wire cutting fixture of the present invention positions the workpiece piston ring in the V-shaped positioning structure formed by the fixture support block assembly in the natural state, so that the positioning of the workpiece in the fixture is accurate and the operation is simple.

[0019] 2. The vertical wire cutting fixture for piston rings of the present invention presses and fastens the workpiece piston ring through the upper and lower pressing plate assemblies, two on each of the left and right sides. Among them, the lower pressing plate assembly closer to the cutting part of the piston ring at the positioning part of the support block is the main pressing, and the upper pressing plate assembly at the upper part is the auxiliary pressing. The working plane of the fixture body that supports the workpiece supports most of the entire ring plane near the cutting part of the piston ring, making the entire clamping process system have good rigidity, not causing deformation of the workpiece piston ring, destroying its original accuracy, and being safe and reliable.

[0020] 3. The main components of the vertical wire cutting fixture for piston rings of the present invention are processed from sheet materials and bar materials, with a simple structure and low cost.

[0021] 4. The base block of the vertical wire cutting fixture for piston rings of the present invention is provided with an installation groove, which can be fixed on wire cutting machine tools of different models, with wide applicability, convenient use, and safety and reliability. Brief Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of the vertical wire cutting fixture and operation method for piston rings provided by the present invention;

[0023] Figure 2 is Figure 1 a schematic structural diagram of the limiting mechanism shown.

[0024] Reference numerals in the figure: 1. Base; 2. Installation groove; 3. Fixed bolt; 4. Main body plate; 5. Cutting groove; 6. Limiting mechanism; 7. Workpiece; 8. Support block; 9. Lower pressing plate; 10. First installation bolt; 11. First mating hole; 12. Upper pressing plate; 13. Second installation bolt; 14. Second mating hole; 15. Fixed seat; 16. Reinforcing block; 17. Vertical rod; 18. Top block; 19. Sliding sleeve; 20. Limiting bolt; 21. Limiting plate. Detailed Embodiment

[0025] The present invention will be further described below in conjunction with the drawings and embodiments.

[0026] In the specific implementation process, as Figure 1 and Figure 2 shown, there is a base 1. Installation grooves 2 are symmetrically opened at both ends of the base 1. Fixed bolts 3 are provided in the installation grooves 2 of the base 1. The upper surface of the base 1 is fixedly installed with a main body plate 4. A cutting groove 5 is opened in the middle of one side of the base 1. A limiting mechanism 6 is installed on one side of the main body plate 4. A workpiece 7 is press-fitted on the limiting mechanism 6. The limiting mechanism 6 includes: support blocks 8. Two support blocks 8 are symmetrically and fixedly installed on the upper surface of the base 1. The top of the support block 8 is installed with a lower pressing plate 9 through a first installation bolt 10. A first mating hole 11 that is threadedly connected and matched with the first installation bolt 10 is equidistantly opened on one side of the top of the support block 8.

[0027] It should be noted that: First, the staff assembles the equipment. After the assembly is completed, the staff then places the workpiece 7 on the limiting mechanism 6, and the limiting mechanism 6 completes the limitation and pressing and fastening of the workpiece 7, so as to more conveniently and accurately cut the workpiece 7.

[0028] Reference Figure 1 and Figure 2 As shown in

[0029] It should be noted that: The symmetrically arranged support blocks 8 can provide stable and balanced support for the workpiece 7. In addition, the inclined surface provided at the top of the support block 8 can provide better support for the circular workpiece 7.

[0030] Reference Figure 2 As shown in

[0031] It should be noted that: Lift the limiting plate 21 to the top of the vertical rod 17. Then, lower and rotate the limiting plate 21 to support the workpiece 7 on the support block 8. When the limiting plate 21 moves to a suitable position, at this time, the staff restricts the position of the sliding sleeve 19 through the limiting bolt 20. When the limiting plate 21 restricts the top end of the support block 8, the staff can press and fasten the workpiece 7 through the lower pressing plate 9 and the upper pressing plate 12 without supporting the workpiece 7, so as to realize the restriction of the position of the workpiece 7, and then cut the workpiece 7. The fixed seat 15 and the reinforcing block 16 can fixedly install the vertical rod 17, and the vertical rod 17 is convenient for the sliding sleeve 19 to move vertically along the vertical rod 17.

[0032] Reference Figure 1 and Figure 2 As shown in

[0033] It should be noted that: The L-shaped lower pressing plate 9 and upper pressing plate 12 can press and fasten the workpiece 7.

[0034] Reference Figure 1 and Figure 2 As shown, reinforcing rib plates are provided at the bottom end of the fixed seat 15.

[0035] It should be noted that: The reinforcing rib plates provided at the bottom of the fixed seat 15 facilitate increasing the installation stability of the fixed seat 15, and thus better support and install the vertical rod 17.

[0036] Reference Figure 1 and Figure 2 As shown, an avoidance groove that cooperates with the workpiece 7 is provided on one side of the limiting plate 21.

[0037] It should be noted that: The avoidance groove provided on one side of the limiting plate 21 can prevent the workpiece 7 from being squeezed when the limiting plate 21 restricts the workpiece 7.

[0038] Reference Figure 1 and Figure 2 As shown, an installation post that cooperates with the limiting plate 21 is provided at one end of the sliding sleeve 19 away from the limiting bolt 20.

[0039] It should be noted that: The installation post provided on one side of the sliding sleeve 19 facilitates the rotational installation of the limiting plate 21.

[0040] The present invention also provides an operation method for a piston ring vertical wire cutting fixture, including:

[0041] 1), Equipment assembly. The staff places the base 1 flat on the platform, and then fixes and installs the base (1) through the fixing bolts 3, and installs the limiting mechanism 6.

[0042] 2), Workpiece clamping. Lift the limiting plate 21 to the top of the vertical rod 17. Then, place the workpiece on the support block 8. Then, lower and rotate the limiting plate 21 to support the workpiece 7 on the support block 8. Then, the staff presses and fastens the workpiece 7 through the lower pressing plate 9 and the upper pressing plate 12 to restrict the position of the workpiece 7, and then perform the cutting work on the workpiece 7.

[0043] The working principle of the piston ring vertical wire cutting fixture provided by the present invention is as follows: The staff places the base 1 flat on the platform, and then fixes and installs the base 1 through the fixing bolts 3. When installing the limiting mechanism 6, when it is necessary to clamp the workpiece 7, first place the workpiece 7 on the support block 8. Then, lift the limiting plate 21 to the top of the vertical rod 17, and then lower and rotate the limiting plate 21 to support the workpiece 7 on the support block 8. When the limiting plate 21 moves to a suitable position, at this time, the staff restricts the position of the sliding sleeve 19 through the limiting bolt 20. After the limiting plate 21 restricts the top end of the support block 8, the staff can press and fasten the workpiece 7 through the lower pressing plate 9 and the upper pressing plate 12 without supporting the workpiece 7, so as to restrict the position of the workpiece 7, and then carry out the cutting work on the workpiece 7.

[0044] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A vertical wire cutting fixture for piston rings, characterized in that Including: A base (1), mounting grooves (2) are symmetrically formed at both ends of the base (1), fixing bolts (3) are arranged in the mounting grooves (2) of the base (1), a main body plate (4) is fixedly mounted on the upper surface of the base (1), a cutting groove (5) is formed in the middle of one side of the base (1), a limiting mechanism (6) is mounted on one side of the main body plate (4), a workpiece (7) is extrusion-fitted on the limiting mechanism (6), and the limiting mechanism (6) includes: supporting blocks (8), the two supporting blocks (8) are symmetrically and fixedly mounted on the upper surface of the base (1), a lower pressing plate (9) is mounted on the top of the supporting block (8) through a first mounting bolt (10), and a first fitting hole (11) which is in threaded connection with the first mounting bolt (10) is equidistantly formed on one side of the top of the supporting block (8); The limiting mechanism (6) further includes: an upper pressing plate (12), the upper pressing plate (12) is fixedly connected to one side of the main body plate (4) through a second mounting bolt (13), and second fitting holes (14) which are in threaded connection with the second mounting bolts (13) are equidistantly and symmetrically formed on one side of the main body plate (4), fixing seats (15) are symmetrically and fixedly mounted on both sides of the main body plate (4), a reinforcing block (16) is arranged on the top of the fixing seat (15), and the reinforcing block (16) is fixedly connected to the side wall of the main body plate (4), a vertical rod (17) is fixedly mounted on the top of the fixing seat (15), and one end of the vertical rod (17) passes through the reinforcing block (16) and is fixedly provided with a top block (18), a sliding sleeve (19) is slidably connected to the vertical rod (17), a limiting bolt (20) is in threaded connection with one side of the sliding sleeve (19), and both sides of the two sliding sleeves (19) away from the limiting bolt (20) are respectively rotationally connected to both ends of a limiting plate (21) through a rotating shaft; An avoidance groove which is matched with the workpiece (7) is formed on one side of the limiting plate (21).

2. The piston ring vertical wire cutting fixture according to claim 1, wherein An inclined surface which is supported and matched with the workpiece (7) is formed on the top of the supporting block (8).

3. The piston ring vertical wire cutting fixture according to claim 1, characterized in that, Both the lower pressing plate (9) and the upper pressing plate (12) are arranged in an L shape.

4. The piston ring vertical wire cutting fixture according to claim 1, characterized in that Reinforcing rib plates are formed at the bottom ends of the fixing seats (15).

5. The piston ring vertical wire cutting fixture according to claim 1, characterized in that, Mounting columns which are matched with the limiting plate (21) are formed at the ends of the sliding sleeves (19) away from the limiting bolts (20).

6. The operating method of the piston ring vertical wire cutting fixture according to any one of claims 1-5, characterized in that Including: 1) Equipment assembly. The staff places the base (1) flat on the platform, and then fixes and mounts the base (1) through the fixing bolts (3), and then mounts the limiting mechanism (6); 2) Workpiece clamping. Lift the limiting plate (21) to the top of the vertical rod (17), then place the workpiece on the supporting block (8), then lower and rotate the limiting plate (21) to support the workpiece (7) on the supporting block (8), and then the staff presses and fastens the workpiece (7) through the lower pressing plate (9) and the upper pressing plate (12) to limit the position of the workpiece (7), and then perform cutting work on the workpiece (7).

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