Flexible fixture for milling tile groove

Abstract

The utility model relates to a flexible fixture for milling tile grooves, which comprises a fixture body, the fixture body comprises a fixture body, the top of the fixture body is provided with three support plates side by side along the width direction of the fixture body, and the three support plates are provided with a fixed template and a movable template; two positioning telescopic oil cylinders and two pressing oil cylinders are arranged between every two adjacent supporting plates; the compression end of each compression oil cylinder is located above the fixed die plate, and each compression oil cylinder is partially fixed to the fixed die plate. The utility model relates to the technical field of clamps. The utility model has the effect of improving the processing precision.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fixture, especially a flexible fixture for milling a valve groove. BACKGROUND

[0002] The connecting rod valve groove is usually milled by a vertical machining center, the fixture is limited to three degrees of freedom by the connecting rod reference side large end face, two degrees of freedom by the small head hole diamond positioning pin, and one degree of freedom by the large end outer circle one side positioning block, and the center distance between the large and small ends of the fixture is fixed. The disadvantages of this scheme are: the design reference of the connecting rod valve groove is the center of the large head hole, and many connecting rod outer circle surfaces are non-machining surfaces, so that the machining reference and the design reference are not unified by positioning the outer circle side surface, and the error of the non-machining surface as the finish machining reference is large. SUMMARY

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a flexible fixture for milling a valve groove, which has the effect of improving machining precision.

[0004] The above technical purpose of the utility model is achieved by the following technical scheme:

[0005] A flexible fixture for milling a valve groove comprises a fixture body, the fixture body comprises a fixture body, and three supporting plates are arranged in parallel on the top of the fixture body along the width direction of the fixture body; a fixed template and a movable template are arranged on the three supporting plates;

[0006] Two positioning telescopic oil cylinders and two pressing oil cylinders are arranged between each adjacent two supporting plates;

[0007] The compression end of each pressing oil cylinder is located above the fixed template, and each pressing oil cylinder is fixed to the fixed template;

[0008] A large hole positioning mandrel is fixed to the telescopic end of each positioning telescopic oil cylinder, and the large hole positioning mandrel is located above the fixed template; and each positioning telescopic oil cylinder is fixed to the fixed template;

[0009] A plurality of large end pads are arranged on the top of the fixed template, the large end pads are hollow, and the large hole positioning mandrel is located in the inside of the large end pads;

[0010] A plurality of small hole positioning pins are arranged on the top of the movable template.

[0011] In a preferred example, the movable template is slidably connected to the three supporting plates.

[0012] The utility model discloses in a preferable example can be further configured as: the top portion of three the support plate all is seted up with T -shaped groove, and T -shaped groove is provided with sliding block, and sliding block top is seted up with threaded hole,

[0013] The movable template is fixed with the corresponding sliding block through bolts.

[0014] The utility model discloses in a preferable example can be further configured as: the plane of the top of the big end pad block is coplanar with the plane of the small hole positioning pin where the connecting rod is placed.

[0015] The utility model discloses in a preferable example can be further configured as: the fixed template and three the support plate all adopt pin positioning.

[0016] Summarized above, the utility model discloses at least one beneficial technical effect:

[0017] 1. through the pressing oil tank in several pressing end press the connecting rod front, fixes the connecting rod, improves the machining accuracy.

[0018] 2. through setting up as the activity connection between the movable template and the support plate, the distance between the movable template and the fixed template is adjusted according to the different size of connecting rod for the operator. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the whole overhead structure schematic diagram of this embodiment;

[0020] Figure 2 It is Figure 1 The half cut structure schematic diagram of movable template and support plate in it;

[0021] Figure 3 It is Figure 1 The half cut structure schematic diagram of fixed template and support plate in it;

[0022] Figure 4 It is Figure 1 The left view half cut structure schematic diagram of it.

[0023] In the drawing, 1, the clip is concrete;11, support plate;12, fixed template;13, movable template;2, positioning telescopic oil cylinder;21, pressing oil cylinder;22, big hole positioning mandrel;3, big end pad block;4, small hole positioning pin. DETAILED DESCRIPTION

[0024] The utility model will be further explained in detail in connection with the drawings.

[0025] Embodiment:

[0026] Refer to Figures 1-4The utility model discloses a flexible clamp of milling groove, including clamp body, and the clamp body includes the body of a clasp, and the top of body of a clasp is provided with three support plates 11 along its width direction parallelly, and three support plates 11 are provided with fixed template 12 and movable template 13.

[0027] Two positioning telescopic oil cylinders 2 and two pressure oil cylinders 21 are placed between every two adjacent support plates 11.

[0028] Every pressure oil cylinder 21 is fixed with fixed template 12.

[0029] Every positioning telescopic oil cylinder 2 is fixed with fixed template 12.

[0030] The compression end of every pressure oil cylinder 21 is located above fixed template 12, and the telescopic end of every positioning telescopic oil cylinder 2 is fixed with a large-hole positioning mandrel 22, which is located above fixed template 12.

[0031] The top of fixed template 12 is provided with a plurality of large-end cushion blocks 3, which are hollow inside, and the large-hole positioning mandrel 22 is located inside the corresponding large-end cushion block 3.

[0032] Movable template 13 is slidably connected with the three support plates 11, and the top of each of the three support plates 11 is provided with a T-shaped groove, in which a sliding block is arranged, and the top of the sliding block is provided with a threaded hole. The large-end cushion block 3 is fixed with the corresponding sliding block through a bolt, and the plane where the top of the large-end cushion block 3 is located is coplanar with the plane where the connecting rod is placed in the small-hole positioning pin 4.

[0033] The implementation principle of the above embodiment is as follows:

[0034] The operator places the connecting rod on the clamp, and the positioning end in the small-hole positioning pin 4 passes through the inner hole of the small-end of the connecting rod, and the large-end of the connecting rod is placed on the corresponding large-end cushion block 3.

[0035] After the connecting rod is placed, the operator starts a plurality of positioning telescopic oil cylinders 2 through a program, and the positioning telescopic oil cylinders 2 drive the corresponding large-hole positioning mandrel 22 to move, so that the large-hole positioning mandrel 22 moves to the inner hole of the large-end of the connecting rod, thereby fixing the connecting rod.

[0036] Next, the operator starts a plurality of pressure oil cylinders 21 through a control program, and the pressure oil cylinders 21 drive the corresponding pressure ends to press the large-end of the connecting rod from the front.

[0037] The embodiments of the present embodiment are the preferred embodiments of the present utility model, not limited to the protection scope of the present utility model, so: all equivalent changes made according to the structure, shape and principle of the present utility model should be covered in the protection scope of the present utility model.

Claims

1. A gudgeon slot flexible fixture comprising a fixture body, the fixture body comprising a fixture body (1), characterised in that, The top of the clamp body (1) is provided with three support plates (11) along the width direction, and the three support plates (11) are provided with fixed templates (12) and movable templates (13); Two positioning telescopic oil cylinders (2) and two pressing oil cylinders (21) are arranged between every two adjacent support plates (11); The compression end of each pressing oil cylinder (21) is located above the fixed template (12), and each pressing oil cylinder (21) is fixed to the fixed template (12); A large-hole positioning mandrel (22) is fixed to the telescopic end of each positioning telescopic oil cylinder (2), and the large-hole positioning mandrel (22) is located above the fixed template (12), and each positioning telescopic oil cylinder (2) is fixed to the fixed template (12); The top of the fixed template (12) is provided with a plurality of large-end pad blocks (3), the large-end pad blocks (3) are hollow, and the large-hole positioning mandrel (22) is located in the inside of the corresponding large-end pad block (3); The top of the movable template (13) is provided with a plurality of small-hole positioning pins (4).

2. A gash flexible fixture as claimed in claim 1, wherein: The movable template (13) is in sliding connection with the three support plates (11).

3. A gash flexible fixture as claimed in claim 2, wherein: The top of each of the three support plates (11) is provided with a T-shaped groove, and a sliding block is arranged in the T-shaped groove, and a threaded hole is formed in the top of the sliding block; The movable template (13) is fixed to the corresponding sliding block by bolts.

4. A gash flexible fixture as claimed in claim 3, wherein: The plane where the top of the large-end pad block (3) is located is coplanar with the plane where the connecting rod is arranged in the small-hole positioning pin (4).

5. A gash flexible fixture as claimed in claim 4, wherein: The fixed template (12) and the three support plates (11) are all positioned by pins.

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