Quick mounting clamp for grey cast iron piece of machining center

Abstract

The utility model provides a quick-mounting clamp for a grey cast iron piece of a machining center. The quick-mounting clamp effectively solves the problems that in the end rough machining process of an existing cylindrical casting piece, the clamping mode is tedious, excessive cutting is prone to occurring, and the parallelism of the end faces of the two ends is not enough. According to the technical scheme, the device comprises a base, a plurality of V-shaped clamping plates are arranged on the upper side of the base, the clamping plates are vertical and are provided with inward openings, a sliding rod is arranged on the outer side of each clamping plate, the sliding rods are sleeved with fixing cylinders, and the fixing cylinders are fixed to the base through vertical rods; two rectangular frames are arranged on the upper side of the base, the two rectangular frames are connected through a plurality of air cylinders, connecting rods in one-to-one correspondence with the rectangular frames are hinged to the clamping plates, and the ends, away from the clamping plates, of the connecting rods are hinged to the rectangular frames; the clamp is ingenious in structure, does not need to be manually straightened before being used, can set the milling amount according to requirements, guarantees the axial size of a part, and meanwhile can guarantee that the end faces of the two ends are parallel.

Description

Technical Field

[0001] This utility model relates to the field of casting and processing technology, and in particular to a quick-assembly fixture for gray cast iron parts in a machining center. Background Technology

[0002] In the rough machining of cylindrical gray cast iron parts, both ends need to be rough and fine machined. Existing jigs for machining cylindrical cast iron parts are highly homogeneous. Generally, the part needs to be fixed to the jig with bolts, clamping blocks, or hydraulic cylinders to hold it in place before rough milling can be performed. After rough and fine milling, the nuts and clamping blocks must be removed one by one and replaced with new parts to be machined, which is very cumbersome and inconvenient to use, and does not achieve the desired block shape. Furthermore, the ends of cylindrical parts are prone to burrs, and traditional clamping methods can easily cause over-milling, resulting in the part's shaft length being too long or too short; at the same time, the end faces at both ends are not parallel after milling.

[0003] To address the aforementioned issues, a quick-assembly fixture for gray cast iron parts in machining centers is provided. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a quick-setup fixture for gray cast iron parts in machining centers, which effectively solves the problems of cumbersome clamping methods, excessive cutting, and insufficient parallelism of the two end faces in the rough machining of cylindrical castings.

[0005] The technical solution includes a base with multiple V-shaped clamps on its upper side. The clamps are vertical and open inward. Each clamp has a sliding rod on its outer side, and a fixing cylinder is fitted onto the sliding rod. The fixing cylinder is fixed to the base by a vertical rod. There are two rectangular frames on the upper side of the base, which are connected by multiple cylinders. Each clamp has a connecting rod that corresponds to a rectangular frame. The end of the connecting rod away from the clamp is hinged to the rectangular frame. The contraction or extension of the cylinders can move the two rectangular plates closer or further apart, thereby controlling the multiple clamps to move towards or away from the center simultaneously.

[0006] Furthermore, there is a horizontal circular plate above the middle of the base, a rotating cylinder is fixed to the lower side of the circular plate, and a vertical cylinder is fixed on the base. The rotating cylinder and the vertical cylinder are screwed together by threads.

[0007] This utility model has an ingenious structure. The fixture does not require manual alignment before use, and the milling amount can be set according to requirements to ensure the axial dimension of the part, while also ensuring that the two end faces are parallel. Attached Figure Description

[0008] Figure 1 This is a three-dimensional drawing of the present invention.

[0009] Figure 2 This is the front view of the present utility model.

[0010] Figure 3 This is a side sectional view of the present invention.

[0011] Figure 4 This is a top view of the present invention. Detailed Implementation

[0012] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0013] Depend on Figures 1 to 4 The present invention includes a base 1, with multiple V-shaped clamps 2 on the upper side of the base 1. The clamps 2 are vertical and open inward. Each clamp 2 has a sliding rod 3 on its outer side, and a fixing cylinder 4 is fitted on the sliding rod 3. The fixing cylinder 4 is fixed to the base 1 by a vertical rod. There are two rectangular frames 5 on the upper side of the base 1, which are connected by multiple cylinders. Each clamp 2 is hinged with a connecting rod 6 that corresponds one-to-one with the rectangular frame 5. The end of the connecting rod 6 away from the clamp 2 is hinged to the rectangular frame 5. The contraction or extension of the cylinders can drive the two rectangular plates to move closer or further apart, thereby controlling the multiple clamps 2 to move closer or further apart from the center at the same time.

[0014] In order to control the axial length of the parts and avoid excessive cutting, there is a horizontal circular plate 7 above the middle of the base 1, a rotating cylinder 8 is fixed on the lower side of the circular plate 7, and a vertical cylinder 9 is fixed on the base 1. The rotating cylinder 8 and the vertical cylinder 9 are screwed together by threads.

[0015] It is worth noting that the base 1 in this solution is for fixing on the worktable of the machining center. Under the premise of ensuring rigidity, the circular plate 7 and the base 1 adopt a hollow design; ribs or reinforcing ribs can be appropriately added between the vertical rod and the base 1.

[0016] When in use, place the cylindrical part to be processed on the circular plate 7, then start the cylinder. Multiple cylinders retract simultaneously, and the two rectangular frames 5, through the connecting rod 6, cause multiple clamping plates 2 to move closer to the middle, thus vertically clamping the part. At this time, one end can be milled; the other end can be milled in the same way to complete the milling of the two ends of the part.

[0017] If the part has requirements for shaft length, the circular plate 7 can be raised and lowered by rotating the rotating cylinder 8. When one end is milled, the finished end is placed flat on the circular plate 7 and in close contact with the circular plate 7. At the same time, since the multiple clamping plates 2 still support the outer circular surface of the part, the two factors make the milled surfaces at both ends parallel, laying a good foundation for subsequent finishing.

[0018] This utility model has an ingenious structure. The fixture does not require manual alignment before use, and the milling amount can be set according to requirements to ensure the axial dimension of the part, while also ensuring that the two end faces are parallel.

Claims

1. A quick-assembly fixture for gray cast iron parts in a machining center, characterized in that, Includes a base (1), with multiple V-shaped clamps (2) on the upper side of the base (1). The clamps (2) are vertical and open inward. Each clamp (2) has a slide rod (3) on its outer side. A fixing cylinder (94) is fitted on the slide rod (3). The fixing cylinder (94) is fixed to the base (1) by a vertical rod. There are two rectangular frames (5) on the upper side of the base (1). The two rectangular frames (5) are connected by multiple cylinders. Each clamp (2) is hinged with a connecting rod (6) that corresponds to the rectangular frame (5). The end of the connecting rod (6) away from the clamp (2) is hinged to the rectangular frame (5). The contraction or extension of the cylinder can drive the two rectangular plates to move closer or further apart, thereby controlling the multiple clamps (2) to move closer or further apart from the center at the same time.

2. The quick-assembly fixture for gray cast iron parts in a machining center according to claim 1, characterized in that, The base (1) has a horizontal circular plate (7) above the middle part, a rotating cylinder (8) is fixed on the lower side of the circular plate (7), and a vertical cylinder (9) is fixed on the base (1). The rotating cylinder (8) and the vertical cylinder (9) are screwed together by threads.

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