Fixture for flanging and forming of one end of U-shaped sealing ring stamping part

Abstract

The utility model provides a clamp for flanging and forming one end of a U-shaped sealing ring stamping part, and belongs to the technical field of bending clamps. Comprising a supporting base, a left clamping plate and a right clamping plate, the left clamping plate and the right clamping plate are horizontally arranged on the upper portion of the supporting base, one end of the left clamping plate and one end of the right clamping plate are hinged to the supporting base, the other end of the left clamping plate and the other end of the right clamping plate are detachably and fixedly connected, and a circular positioning groove used for containing a U-shaped section sealing ring is formed between the left clamping plate and the right clamping plate after the left clamping plate and the right clamping plate are spliced. The U-shaped sealing ring machining and forming device is matched with punches of different specifications, machining and forming of a U-shaped sealing ring can be completed, the surface of a workpiece can be well protected, the workpiece can be rapidly clamped and fixed, machining time is shortened, and productivity is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bending fixtures, in particular to a fixture for forming a flanging at one end of a tin alloy metal U-shaped cross-section sealing ring stamping part. Background Art

[0002] At present, the sealing ring stamping parts with U-shaped cross section made of tin alloy metal are first made into a cylinder, and then one end of the cylinder is flanging formed, such as Figure 2 As shown in the figure, qualified parts can only be processed by using special bending equipment and punches to flanging the other end. Figure 3 As shown in the figure, the existing processing method requires special equipment and punches for the second flanging, which takes a long time and has low production efficiency. Therefore, it is necessary to propose an improvement. Utility Model Content

[0003] The technical problem solved by the utility model is to provide a fixture for flanging one end of a U-shaped sealing ring stamping part. The purpose of the utility model is to design a flanging forming fixture for a U-shaped sealing ring stamping part that can protect the surface of the workpiece and quickly clamp and fix the workpiece, thereby shortening the processing time and improving productivity.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by this utility model is:

[0005] A fixture for flanging one end of a U-shaped sealing ring stamping part includes a support base, a left splint and a right splint. The left splint and the right splint are horizontally placed on the upper part of the support base. One end of the left splint and the right splint are hinged on the support base. The other end of the left splint and the right splint are detachably fixedly connected. After the left splint and the right splint are assembled, a circular positioning groove is formed in the middle for placing the U-shaped cross-section sealing ring.

[0006] To further limit the above scheme, the left splint and the right splint are both semi-circular ring structures, the left splint is provided with a left semi-circular positioning groove, and the right splint is provided with a right semi-circular positioning groove. The left semi-circular positioning groove and the right semi-circular positioning groove are combined to form a circular positioning groove for placing a U-shaped cross-section sealing ring.

[0007] To further define the above scheme, a left hinge seat is provided at one end of the left splint, and a right hinge seat is provided at one end of the right splint. Both the left hinge seat and the right hinge seat are provided with positioning pin holes. The left hinge seat and the right hinge seat are hinged by a positioning hinge pin passing through the positioning pin hole, and the lower end of the positioning hinge pin is connected to the support base.

[0008] To further limit the above scheme, the other end of the left splint is provided with a left connecting seat, and the other end of the right splint is provided with a right connecting seat. Both the left connecting seat and the right connecting seat are provided with connecting holes, and the left connecting seat and the right connecting seat are detachably connected by screwing a movable bolt into the connecting hole.

[0009] As a further limitation of the above solution, an operating notch is provided on one side of the support base close to the movable bolt.

[0010] To further limit the above scheme, a through hole is provided in the middle of the support base, and a positioning circular boss is provided in the middle of the support base. The outer diameter of the positioning circular boss is adapted to the inner diameter of the U-shaped cross-section sealing ring for positioning it, and the through hole and the positioning circular boss are coaxial with the circular positioning groove formed by splicing the left and right splints.

[0011] The advantages of this utility model compared with the prior art are:

[0012] 1. To meet production needs, this solution designs and manufactures interlocking left and right clamps. The left and right clamps are connected by a positioning hinge pin, and the opening is locked with a live bolt. The two connected clamps are fixed to the support base by the positioning hinge pin. The semi-finished sealing ring is fixed in the circular positioning groove. With the help of punches of different specifications, the U-shaped sealing ring can be processed and formed. This fixture can not only effectively protect the workpiece surface but also quickly clamp and fix the workpiece, shortening the processing time and improving productivity.

[0013] 2. This solution facilitates the processing and forming of this type of workpiece by matching this fixture and operating method, which not only ensures the appearance quality of the product, but also effectively improves the product qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the semi-finished structure of the U-shaped cross-section sealing ring in the present utility model;

[0016] Figure 3 This is a schematic diagram of the U-shaped cross-section sealing ring molding structure in the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the 80° punch in the present invention;

[0018] Figure 5 This is a schematic diagram of the structure of the 120° punch in the present invention;

[0019] Figure 6 This is a schematic structural diagram of the 0° punch in the present invention;

[0020] Figure 7It is a cross-sectional view of the support base in the present utility model. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.

[0023] See also Figure 1-7 , describe in detail the embodiments of the present utility model.

[0024] Example: Fixture for forming the flange at one end of a U-shaped sealing ring stamping part, see Figure 1 As shown, it includes a support base 1, a left splint 2 and a right splint 3, the left splint 2 and the right splint 3 are horizontally placed on the upper part of the support base 1, one end of the left splint 2 and the right splint 3 are hinged on the support base 1, and the other end of the left splint 2 and the right splint 3 are detachably fixedly connected, and a circular positioning groove for placing a U-shaped cross-section sealing ring 13 is formed in the middle after the left splint 2 and the right splint 3 are assembled.

[0025] In the above structure, a gap is left between the lower surface of the left and right splints 2 and 3 after they are assembled and the upper surface of the support base 1. The thickness of the gap is equal to the thickness of the flange formed at the bottom of the U-shaped cross-section sealing ring 13. When in use, it is used to accommodate the flange formed on the sealing ring and clamp it in the gap.

[0026] In a specific embodiment, the left splint 2 and the right splint 3 are both semicircular ring structures, the left splint 2 is provided with a left semicircular positioning groove 7, and the right splint 3 is provided with a right semicircular positioning groove 8. The left semicircular positioning groove 7 and the right semicircular positioning groove 8 are assembled to form a circular positioning groove for placing the U-shaped cross-section sealing ring 13.

[0027] The diameter of the circular positioning groove in the above structure is adapted to the diameter of the body of the U-shaped cross-section sealing ring 13 and is used to clamp the U-shaped cross-section sealing ring 13 .

[0028] In a specific embodiment, a left hinge seat 4 is provided at one end of the left splint 2, and a right hinge seat 5 is provided at one end of the right splint 3. Both the left hinge seat 4 and the right hinge seat 5 are provided with positioning pin holes. The left hinge seat 4 and the right hinge seat 5 are hinged by a positioning hinge pin 6 passing through the positioning pin hole, and the lower end of the positioning hinge pin 6 is connected to the support base 1.

[0029] In the above structure, the hinge connection of the left and right clamping plates and the connection between the left and right clamping plates and the support base are simultaneously achieved by positioning the hinge pin.

[0030] In a specific embodiment, a left connecting seat 9 is provided at the other end of the left splint 2, and a right connecting seat 10 is provided at the other end of the right splint 3. Both the left connecting seat 9 and the right connecting seat 10 are provided with connecting holes, and the left connecting seat 9 and the right connecting seat 10 are detachably connected by screwing a movable bolt 11 into the connecting hole.

[0031] In the above structure, the left connecting seat and the right connecting seat are only placed on the supporting base and are not connected to the supporting base, thereby ensuring the mobility of the left and right splints.

[0032] In a specific embodiment, the support base 1 is provided with an operation notch 12 on one side close to the swing bolt 11. The operation notch mainly provides an operation space for the swing bolt to facilitate operation.

[0033] In a specific embodiment, see Figure 7 As shown, a through hole 14 is provided in the middle of the support base 1, which can avoid interference with the lower end of the punch during the processing and ensure that the punch is pressed down to the limit.

[0034] In a specific embodiment, see Figure 7 As shown, a positioning circular boss 18 is provided in the middle of the support base 1. The outer diameter of the positioning circular boss 18 matches the inner diameter of the U-shaped cross-section sealing ring 13 for positioning. The through hole 14 and the positioning circular boss 18 are coaxial with the circular positioning groove formed by the left and right clamping plates 2 and 3. During use, the lower portion of the U-shaped cross-section sealing ring is coaxially sleeved on the positioning circular boss for positioning, and then clamped by the left and right clamping plates.

[0035] When the utility model is used, the left and right splints are connected by positioning hinge pins, the openings are locked with live bolts, the connected splint bodies are fixed on the support base by positioning hinge pins, and the high head nuts are tightened to fix the workpiece in the circular positioning groove in the fixture. Figure 1 As shown. Use No. 1 80° punch (as shown Figure 4 ), No. 2 120° punch (such as Figure 5 )、No. 3 0° punch (such as Figure 6The workpiece can be pre-bent, re-bent, formed (flanged), and then pressed or struck to the bottom dead center before stopping. This bending fixture not only effectively protects the workpiece surface but also quickly secures the workpiece, shortening processing time and improving productivity.

[0036] The utility model is convenient for processing and forming such workpieces through the matched use of the clamp and the operating method, which not only ensures the appearance quality of the product but also effectively improves the qualified rate of the product.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description. It is intended that all variations within the meaning and range of equivalents of the claims be encompassed within the present invention, and any reference numerals in the claims should not be construed as limiting the claims to which they relate.

[0038] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A fixture for forming the flange at one end of a U-shaped sealing ring stamping part, characterized by: The invention comprises a support base (1), a left clamping plate (2) and a right clamping plate (3), wherein the left clamping plate (2) and the right clamping plate (3) are horizontally placed on the upper part of the support base (1), one end of the left clamping plate (2) and the right clamping plate (3) are hinged on the support base (1), and the other end of the left clamping plate (2) and the right clamping plate (3) are detachably fixedly connected, and a circular positioning groove for placing a U-shaped cross-section sealing ring (13) is formed in the middle of the left clamping plate (2) and the right clamping plate (3) after being spliced together.

2. The fixture for forming a flanging at one end of a U-shaped sealing ring stamping according to claim 1, characterized in that: The left clamping plate (2) and the right clamping plate (3) are both semicircular ring structures. The left clamping plate (2) is provided with a left semicircular positioning groove (7), and the right clamping plate (3) is provided with a right semicircular positioning groove (8). The left semicircular positioning groove (7) and the right semicircular positioning groove (8) are combined to form a circular positioning groove for accommodating a U-shaped cross-section sealing ring (13).

3. The fixture for forming a flanging at one end of a U-shaped sealing ring stamping according to claim 1, characterized in that: A left hinge seat (4) is provided at one end of the left splint (2), and a right hinge seat (5) is provided at one end of the right splint (3). Both the left hinge seat (4) and the right hinge seat (5) are provided with positioning pin holes. The left hinge seat (4) and the right hinge seat (5) are hinged to each other through a positioning hinge pin (6) passing through the positioning pin hole. The lower end of the positioning hinge pin (6) is connected to the support base (1).

4. The fixture for forming a flanging at one end of a U-shaped sealing ring stamping according to claim 1, characterized in that: The other end of the left splint (2) is provided with a left connecting seat (9), and the other end of the right splint (3) is provided with a right connecting seat (10). Both the left connecting seat (9) and the right connecting seat (10) are provided with connecting holes. The left connecting seat (9) and the right connecting seat (10) are detachably connected to each other through a movable bolt (11) and the connecting hole.

5. The fixture for forming a flanging at one end of a U-shaped sealing ring stamping according to claim 4, characterized in that: An operating notch (12) is provided on one side of the support base (1) close to the hinge bolt (11).

6. The fixture for forming a flanging at one end of a U-shaped sealing ring stamping according to claim 1, characterized in that: A through hole (14) is provided in the middle of the support base (1), and a positioning circular boss (18) is provided in the middle of the support base (1). The outer diameter of the positioning circular boss (18) is adapted to the inner diameter of the U-shaped cross-section sealing ring (13) for positioning the same. The through hole (14) and the positioning circular boss (18) are coaxial with the circular positioning groove formed by splicing the left clamping plate (2) and the right clamping plate (3).

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