A left cowl assembly floating support fixture

Abstract

The utility model discloses a left box cover assembly floating support clamp, its characterized in that: including clamp base plate, be provided with two interval arrangement's conical positioning pin on the clamp base plate, be provided with three triangularly arranged support column on the clamp base plate, the lever pressure cylinder is provided with to each support column's corresponding upper, set up between any two adjacent support column and have a first auxiliary support, the middle of three support columns is provided with three second auxiliary supports, and one of second auxiliary supports is provided with auxiliary pressure cylinder above, the utility model has the beneficial effects of including: clamp simple structure, convenient to clamp and position, and the support effect is good, and the machining quality is stable.

Description

Technical Field

[0001] This utility model relates to the field of machining fixtures, specifically to a floating support fixture for a left box cover assembly. Background Technology

[0002] The left gearbox cover assembly is the end cover of the gearbox. The main body of the left gearbox cover assembly is formed by casting, and then the mounting surface and back are machined. Since the mounting surface and back of the left gearbox cover assembly have different shapes, conventionally two sets of fixtures need to be designed for processing. When machining the mounting surface of the left gearbox cover assembly, the back is mainly supported and positioned. The back of the left gearbox cover assembly is uneven, so it cannot be supported by a large surface. Since the overall wall thickness of the left gearbox cover is not large, the existing clamping method is easily deformed by machining pressure, which also poses a quality risk of unstable product processing quality and cannot meet the user's requirements for the production development progress and product quality of this new product. Summary of the Invention

[0003] To address the shortcomings of the existing technology, this utility model provides a floating support clamp for the left box cover assembly, which has a simple structure, good support effect, and is easy to clamp.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A floating support fixture for a left box cover assembly, characterized in that: it includes a fixture base plate, on which two conical positioning pins are arranged at intervals, and three support columns arranged in a triangle are provided on the fixture base plate. A lever clamping cylinder is provided above each of the support columns, a first auxiliary support is provided between any two adjacent support columns, and three second auxiliary supports are provided in the middle of the three support columns, with an auxiliary clamping cylinder provided above one of the second auxiliary supports.

[0006] Furthermore, the support column is mounted on the base plate of the fixture via an extension seat, and the lever clamping cylinder is mounted on the extension seat.

[0007] Furthermore, a support block is provided at the upper end of the first auxiliary support, and the upper end of the support block has a C-shaped support surface.

[0008] Furthermore, the fixture base plate is provided with two stepped pads, the two first auxiliary supports are provided on the higher first step of the stepped pads, and the conical positioning pin is provided on the lower second step of the stepped pads.

[0009] Furthermore, the auxiliary clamping cylinder is a lever-type hydraulic cylinder.

[0010] The advantages of this utility model include: simple fixture structure, convenient clamping and positioning, good support effect, and stable processing quality. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0012] The present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0013] One such Figure 1 The floating support fixture for the left cover assembly shown includes a fixture base plate 1. Two spaced-apart tapered locating pins 2 are provided on the fixture base plate 1 for locating two diagonally opposite mounting holes on the left cover assembly. Three triangularly arranged support columns 3 are provided on the fixture base plate 1, defining a locating surface, allowing the left cover assembly to be fully positioned using two pins on one surface. A lever clamping cylinder 4 is positioned above each support column 3. The clamping arm of the lever clamping cylinder 4 presses against the edge of the left cover assembly, and the clamping arm of the lever clamping cylinder does not exceed the machined surface of the top surface of the left cover assembly.

[0014] To enhance the support strength of the clamp, a first auxiliary support 5 is provided between any two adjacent support columns 3 in this embodiment. This first auxiliary support 5 is used to support the edge of the back of the left box cover assembly. Three second auxiliary supports 6 are provided in the middle of the three support columns 3. Two of the second auxiliary supports 6 support the middle part of the back of the left box cover assembly, and the other second auxiliary support 6 supports the middle edge of the left box cover assembly. An auxiliary clamping cylinder 7 is provided above the second auxiliary support 6. The auxiliary clamping cylinder 7 is a lever-type hydraulic cylinder used to assist in clamping the left box cover assembly. Both the first auxiliary support 5 and the second auxiliary support 6 are floating support hydraulic cylinders.

[0015] For ease of processing, the support column 3 is mounted on the fixture base plate 1 via the heightening seat 8, and the lever clamping cylinder 4 is mounted on the heightening seat 8.

[0016] To ensure the stability of the support surface, a support block 9 is provided at the upper end of the first auxiliary support 5. The upper end of the support block 9 has a C-shaped support surface, which is used to face the end face of the mounting hole to avoid single-point support from damaging the left box cover assembly.

[0017] To facilitate the arrangement of the fixture space, the fixture base plate 1 of this embodiment is provided with two stepped pads 10, two first auxiliary supports 6 are provided on the higher first step of the stepped pads 10, and the conical positioning pins 2 are provided on the lower second step of the stepped pads 10.

[0018] The technical solutions provided by the embodiments of this utility model have been described in detail above. Specific examples have been used in this document to illustrate the principles and implementation methods of the embodiments of this utility model. The description of the above embodiments is only intended to help understand the principles of the embodiments of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A floating support fixture for a left box cover assembly, characterized in that: The fixture includes a base plate (1), on which two tapered positioning pins (2) are arranged at intervals. The base plate (1) also has three support columns (3) arranged in a triangle. Each support column (3) has a lever clamping cylinder (4) above it. A first auxiliary support (5) is provided between any two adjacent support columns (3). Three second auxiliary supports (6) are provided in the middle of the three support columns (3). An auxiliary clamping cylinder (7) is provided above one of the second auxiliary supports (6).

2. The floating support fixture for the left box cover assembly according to claim 1, characterized in that: The support column (3) is mounted on the fixture base plate (1) via the heightening seat (8), and the lever clamping cylinder (4) is mounted on the heightening seat (8).

3. The floating support fixture for the left box cover assembly according to claim 1, characterized in that: The upper end of the first auxiliary support (5) is provided with a support block (9), and the upper end of the support block (9) has a C-shaped support surface.

4. A floating support fixture for a left box cover assembly according to claim 1, characterized in that: The fixture base plate (1) is provided with two stepped pads (10), the two first auxiliary supports (5) are provided on the higher first step of the stepped pads (10), and the conical positioning pin (2) is provided on the lower second step of the stepped pads (10).

5. A floating support fixture for a left box cover assembly according to claim 1, characterized in that: The auxiliary clamping cylinder (7) is a lever-type hydraulic cylinder.

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