Positioning tool for blow-molded dust cover for automobile

Abstract

The utility model provides a kind of positioning tool of automobile blow mould dust cover, including positioning fixture, air inlet pipe and air bag;Positioning fixture includes movable compression part and fixed bearing part, movable compression part and fixed bearing part are equipped with connecting piece on, connecting piece is used to install movable compression part and fixed bearing part to edge trimmer, movable compression part and fixed bearing part are spliced to form positioning fixture, and positioning fixture is the cylinder structure that is permeable from front to back;Axial limit structure is provided between movable compression part and fixed bearing part;The shape of the inner wall of positioning fixture is adapted to the shape of the outer surface of dust cover;The positioning tool of the automobile blow mould dust cover can hold the dust cover inside the tool, increase the contact area with the workpiece, avoid workpiece deformation, and at the same time, through the inflation of the air bag, support and hold the workpiece from inside, so as to further clamp and position, and at the same time, through the inner support, further avoid workpiece deformation.

Description

Technical Field

[0001] This utility model relates to dust covers for automobiles, and in particular to a positioning fixture for a blow-molded dust cover for automobiles. Background Technology

[0002] Blow-molded dust covers for automobiles are plastic protective parts manufactured through a blow molding process. They are mainly used in mechanical connection parts inside or outside automobiles to prevent dust, water, and dirt from entering and protect critical components. Blow-molded dust covers are primarily used to prevent dust, mud, and other foreign objects from entering precision mechanical parts, thus avoiding wear or corrosion.

[0003] During the production of blow-molded dust covers, after the dust cover is blow-molded, it needs to be cut on both sides. During the cutting process, the dust cover needs to be positioned. Since the dust cover is generally made of plastic blow molding, the dust cover is flexible as a whole. When the clamping fixture is used for positioning, the dust cover is prone to deformation, which can easily lead to errors during cutting. Utility Model Content

[0004] To address the problem in the prior art that the dust cover is flexible and easily deforms when positioned by clamping fixtures, this utility model proposes a positioning fixture for a blow-molded dust cover for automobiles.

[0005] The technical solution of this utility model is: it includes a positioning clamp, an air inlet pipe, and an airbag;

[0006] The positioning fixture includes a movable clamping part and a fixed bearing part. Both the movable clamping part and the fixed bearing part are provided with connecting parts. The connecting parts are used to install the movable clamping part and the fixed bearing part onto the edge trimming machine. The movable clamping part and the fixed bearing part are assembled to form the positioning fixture, and the positioning fixture is a cylindrical structure that is open at the front and back.

[0007] An axial limiting structure is provided between the movable clamping part and the fixed bearing part;

[0008] The inner wall shape of the positioning fixture is adapted to the outer surface shape of the dust cover;

[0009] The air intake pipe extends in the front-to-back direction and enters the interior of the positioning fixture. A connecting pipe is provided on the air intake pipe for connecting to the air delivery device.

[0010] The airbag is fixedly connected to the right end of the air intake pipe. The airbag is connected to the air intake pipe. When the airbag is inflated by air, it provides support for the dust cover and clamps the dust cover.

[0011] Preferably, both the movable clamping part and the fixed bearing part are semi-arc-shaped structures extending in the front-rear direction;

[0012] The connector has bolt holes. Both the movable clamping part and the fixed bearing part have bolt holes. The bolt holes are open to the inside and outside and are used to insert bolts.

[0013] Preferably, the bolt connection hole includes an insertion hole and a clearance hole, the insertion hole and the clearance hole are configured with different diameters, the insertion hole and the clearance hole are connected to form a stepped structure, the diameter of the insertion hole is smaller than the diameter of the clearance hole, the clearance hole is located close to the inner wall of the positioning fixture, and the insertion hole is located away from the positioning fixture, the clearance hole is used to avoid the bolt head.

[0014] Preferably, the air intake pipe includes a first air intake pipe and a second air intake pipe, both of which extend in the left-right direction. The right end of the first air intake pipe is rotatably connected to the left end of the second air intake pipe, and the right end of the first air intake pipe is connected to the second air intake pipe.

[0015] The airbag is fixedly connected to the right end of the second air intake pipe, and the right end of the second air intake pipe is connected to the airbag.

[0016] The first intake pipe is fixedly connected to a connecting pipe that communicates with its interior.

[0017] Preferably, the left end of the first air intake pipe is fixedly connected to a connection port, which is used to fixally connect to the positioning device.

[0018] A positioning fixture for a blow-molded dust cover for automobiles according to any one of the following claims, characterized in that: both the left and right sides of the inner walls of the movable clamping part and the fixed bearing part are provided with protruding structures;

[0019] Two adjacent raised structures on the same side are connected to form a ring-shaped raised structure, which is adapted to the shape of the raised structure on the dust cover.

[0020] Preferably, the axial limiting structure includes a T-shaped protrusion and a T-shaped groove. The T-shaped protrusion is fixedly connected to the contact surface of the fixed bearing part facing the movable pressing part, and the T-shaped groove is opened on the contact surface of the movable pressing part facing the fixed bearing part. The T-shaped protrusion and the T-shaped groove are vertically corresponding, and the T-shaped protrusion and the T-shaped groove are engaged and adapted to each other.

[0021] The advantages of this utility model are: the axial limiting structure limits the movement of the movable clamping part and the fixed bearing part after they are spliced ​​together, thus preventing misalignment; at the same time, the expansion of the air bladder provides internal support for the workpiece, preventing deformation or displacement of the workpiece during rotation. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the main structure of Example 1;

[0024] Figure 2 This is a schematic diagram of the external structure of the main positioning fixture in Example 1.

[0025] In the figure, 1 is the movable clamping part, 2 is the fixed bearing part, 3 is the bolt connection hole, 4 is the protruding structure, 5 is the first air inlet pipe, 6 is the second air inlet pipe, 7 is the airbag, 8 is the connecting pipe, and 9 is the connection port. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1: This example aims to provide a positioning fixture for a blow-molded dust cover for automobiles.

[0028] according to Figures 1-2 As shown, it includes a positioning clamp, an air intake pipe, and an airbag 7.

[0029] The positioning fixture includes a movable clamping part 1 and a fixed bearing part 2. Both the movable clamping part 1 and the fixed bearing part 2 are provided with connecting parts, which are bolt connection holes 3. The bolt connection holes 3 are open inside and out and are used to insert bolts. The bolt connection holes 3 include insertion holes and clearance holes. The insertion holes and clearance holes are set with different diameters and are connected to form a stepped structure. The diameter of the insertion hole is smaller than the diameter of the clearance hole. The clearance hole is set close to the inner wall of the positioning fixture, and the insertion hole is set away from the positioning fixture. The clearance hole is used to avoid the bolt head. The bolt is inserted from the inside to the outside, and the bolt head is located in the clearance hole. The screw protrudes from the insertion hole, so that the bolt does not contact the workpiece when the positioning fixture positions the workpiece.

[0030] The connector is used to connect with the edge trimming machine, which is a commonly used cutting equipment in existing technology. Generally, the workpiece is positioned by a clamping and positioning device that can be flipped or vertically displaced. After positioning, the workpiece is cut by a cutting tool that can move left and right. The connector is used to connect the movable clamping part 1 and the fixed bearing part 2 to the clamping and positioning device on the edge trimming machine, so that when clamping, the movable clamping part 1 is engaged with the fixed bearing part 2, so that the movable clamping part 1 and the fixed bearing part 2 are connected to form a positioning fixture. The positioning fixture is a cylindrical structure that is open at both ends. Both ends of the cylindrical structure are provided with reducing diameter openings, which facilitates the clamping and positioning of the dust cover.

[0031] Both the movable clamping part 1 and the fixed bearing part 2 are semi-circular structures extending in the front-to-back direction.

[0032] The inner wall shape of the positioning fixture is adapted to the outer surface shape of the dust cover. When the movable clamping part 1 is fastened to the fixed bearing part 2, the outer surface of the dust cover is in contact with the inner wall of the positioning fixture.

[0033] The air inlet pipe extends in the front-to-back direction and enters the interior of the positioning fixture. The air inlet pipe includes a first air inlet pipe 5 and a second air inlet pipe 6. Both the first air inlet pipe 5 and the second air inlet pipe 6 extend in the left-to-right direction. The right end of the first air inlet pipe 5 is rotatably connected to the left end of the second air inlet pipe 6. A connecting pipe 8 is fixedly connected to the first air inlet pipe 5 and communicates with its interior. The connecting pipe 8 is used to connect to the air outlet of an external air supply device. The first air inlet pipe 5 and the second air inlet pipe 6 are rotatably connected by a rotating bearing, and the right end of the first air inlet pipe 5 is communicated with the second air inlet pipe 6. An air bag 7 is fixedly connected to the right end of the second air inlet pipe 6 and communicates with the right end of the second air inlet pipe 6. This allows the air bag 7 to rotate when the trimming machine drives the positioning fixture to rotate, thus avoiding interference with the rotation of the workpiece after the air bag 7 expands.

[0034] The left end of the first air intake pipe 5 is fixedly connected to a connection port 9. The connection port 9 is used to detachably connect to the positioning device. The connection port 9 is provided with a threaded structure for connecting to the connector of the positioning device. In this embodiment, the positioning device is a telescopic mechanism that can move back and forth. The telescopic mechanism drives the connector to move back and forth by telescopic movement, thereby sending the airbag 7 into the positioning fixture. The telescopic mechanism can be an electric push rod or a cylinder.

[0035] Both the movable clamping part 1 and the fixed bearing part 2 have protruding structures 4 on their left and right sides. When the movable clamping part 1 is fastened to the fixed bearing part 2, the two adjacent protruding structures 4 on the same side are in contact and connected, forming an annular protruding structure inside the positioning fixture. The annular protruding structure is adapted to the shape of the protruding structure on the dust cover. When the positioning fixture clamps and positions the dust cover, the annular protruding structure engages with the protruding structure on the dust cover to prevent the dust cover from moving left and right when clamped.

[0036] An axial limiting structure is provided between the movable pressing part (1) and the fixed bearing part (2). The axial limiting structure includes a T-shaped positioning structure between the movable pressing part 1 and the fixed bearing part 2. The T-shaped positioning structure includes a T-shaped protrusion and a T-shaped groove. The T-shaped protrusion and the T-shaped groove are engaged and matched. The T-shaped protrusion is fixedly connected to the contact surface of the fixed bearing part 2 facing the movable pressing part 1. The T-shaped groove is opened on the contact surface of the movable pressing part 1 facing the fixed bearing part 2. The T-shaped groove and the T-shaped protrusion are vertically corresponding. Both the T-shaped protrusion and the T-shaped groove have an arc. The arc is the same as the arc of the movable pressing part 1 and the fixed bearing part 2. Thus, when the movable pressing part 1 is fastened to the fixed bearing part 2, it is positioned by the T-shaped positioning structure.

[0037] Working principle: During use, the dust cover to be cut is placed in the fixed bearing part 2. The movable pressing part 1 is fastened to the fixed bearing part 2 by the edge cutting machine. After the dust cover is positioned, the air inlet pipe and air bag 7 are sent into the interior of the positioning fixture by the extension and retraction of the positioning device. Then, gas is sent into the air bag 7, the air bag 7 inflates, and the inflated air bag 7 presses the dust cover tightly against the inner wall of the positioning fixture.

[0038] Then, the edge trimming machine drives the positioning fixture to rotate. When the positioning fixture rotates, the airbag 7 rotates through the second air inlet pipe 6. Then, the edge trimming machine controls the cutting blade to approach and contact the dust cover, thereby trimming the dust cover.

[0039] Therefore, the dust cover made of flexible material is clamped and positioned, and the airbag 7 is used for internal support and tightening to prevent the dust cover from deforming during cutting. At the same time, it prevents the product from shifting or misaligning in the cutting fixture when the edge trimmer is used, which would result in more or less cutting of the product.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims and not by the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A positioning fixture for a blow-molded dust cover for automobiles, characterized in that: Includes positioning clamps, air intake pipes, and airbags (7); The positioning fixture includes a movable clamping part (1) and a fixed bearing part (2). Both the movable clamping part (1) and the fixed bearing part (2) are provided with connecting parts. The connecting parts are used to install the movable clamping part (1) and the fixed bearing part (2) onto the edge cutting machine. The movable clamping part (1) and the fixed bearing part (2) are assembled to form the positioning fixture. The positioning fixture is a cylindrical structure that is open at the front and back. An axial limiting structure is provided between the movable clamping part (1) and the fixed bearing part (2); The inner wall shape of the positioning fixture is adapted to the outer surface shape of the dust cover; The air inlet pipe extends in the front-to-back direction and extends into the interior of the positioning clamp. A connecting pipe (8) is provided on the air inlet pipe, which is used to connect to the gas delivery device. The airbag (7) is fixedly connected to the right end of the air inlet pipe. The airbag (7) is connected to the air inlet pipe. The airbag (7) inflates when it is inhaled, which is used to support the dust cover and then clamp the dust cover through the support.

2. The positioning fixture for an automotive blow-molded dust cover according to claim 1, characterized in that: Both the movable clamping part (1) and the fixed bearing part (2) are semi-arc structures extending in the front-back direction; The connector is a bolt connection hole (3). Both the movable clamping part (1) and the fixed bearing part (2) are provided with bolt connection holes (3). The bolt connection holes (3) are open inside and out and are used to insert bolts.

3. The positioning fixture for an automotive blow-molded dust cover according to claim 2, characterized in that: The bolt connection hole (3) includes an insertion hole and a clearance hole. The insertion hole and the clearance hole are configured with different diameters. The insertion hole and the clearance hole are connected to form a stepped structure. The diameter of the insertion hole is smaller than the diameter of the clearance hole. The clearance hole is set close to the inner wall of the positioning fixture, and the insertion hole is set away from the positioning fixture. The clearance hole is used to avoid the bolt head.

4. A positioning fixture for an automotive blow-molded dust cover according to any one of claims 1-3, characterized in that: The air intake pipe includes a first air intake pipe (5) and a second air intake pipe (6). Both the first air intake pipe (5) and the second air intake pipe (6) extend in the left and right direction. The right end of the first air intake pipe (5) is rotatably connected to the left end of the second air intake pipe (6), and the right end of the first air intake pipe (5) is connected to the second air intake pipe (6). The airbag (7) is fixedly connected to the right end of the second air intake pipe (6), and the right end of the second air intake pipe (6) is connected to the airbag (7); A connecting pipe (8) is fixedly connected to the first air intake pipe (5) and communicates with its interior.

5. The positioning fixture for an automotive blow-molded dust cover according to claim 4, characterized in that: The left end of the first air intake pipe (5) is fixedly connected to a connection port (9), which is used to be fixedly connected to the positioning device.

6. A positioning fixture for an automotive blow-molded dust cover according to any one of claims 1-3, characterized in that: The movable pressing part (1) and the fixed bearing part (2) are provided with protruding structures (4) on both the left and right sides of the inner wall. Two adjacent raised structures (4) located on the same side are connected to form an annular raised structure, and the annular raised structure is adapted to the shape of the raised structure on the dust cover.

7. A positioning fixture for an automotive blow-molded dust cover according to any one of claims 1-3, characterized in that: The axial limiting structure includes a T-shaped protrusion and a T-shaped groove. The T-shaped protrusion is fixedly connected to the contact surface of the fixed bearing part (2) that contacts the movable pressing part (1). The T-shaped groove is opened on the contact surface of the movable pressing part (1) that contacts the fixed bearing part (2). The T-shaped protrusion and the T-shaped groove are vertically corresponding and are fitted together.

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