A punching tool for producing a sealing gasket of an automobile

Abstract

The utility model discloses a kind of punching toolings for automobile sealing gasket production, belong to the field of automobile parts processing. Including cover plate, split cutter group and connecting piece, the cover plate front is provided with the cutter installation table matched with sealing gasket contour, the split cutter group is detachably mounted on the cutter installation table by the connecting piece. The utility model adapts complex contour sealing gasket, punching precision is high, and efficiency is improved more than 3 times compared with manual trimming.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, specifically to a punching tool for producing automotive gaskets. Background Technology

[0002] Currently, the commonly known methods for removing burrs from rubber gaskets are manual trimming and cryogenic trimming. Manual trimming uses scissors, scalpels, etc., to remove burrs by hand. It is suitable for small-batch production, but it is inefficient, relies heavily on worker experience for precision, and can easily lead to uneven sealing surfaces and leaks. Cryogenic trimming freezes the rubber gasket to its embrittlement temperature, and the burrs are removed by high-speed shot blasting or vibration after they become brittle. However, for column valves in water valves, the polytetrafluoroethylene composite material has poor low-temperature resistance (embrittlement temperature < -50℃), and freezing will cause the matrix to crack, making it unusable.

[0003] Therefore, existing technologies cannot meet the high-precision, batch-processing requirements for deburring of complex structure gaskets (such as column valves). Utility Model Content

[0004] This utility model provides a punching tool for the production of automotive gaskets, which can solve the problem that the existing manual trimming and freeze trimming methods cannot meet the high-precision, batch flash removal requirements of complex structure gaskets.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A punching fixture for producing automotive gaskets includes a cover plate, a split-type tool assembly, and a connector. The front of the cover plate is provided with a tool mounting table that matches the contour of the gasket. The split-type tool assembly is detachably mounted on the tool mounting table via the connector.

[0007] As a further embodiment of this utility model: the split-type tool set includes a left blade, a right blade, a front blade, and a rear blade. The left blade and the right blade are symmetrically arranged on the left and right sides of the tool mounting table, and the front blade and the rear blade are respectively arranged on the front and rear sides of the tool mounting table.

[0008] As a further embodiment of this utility model: the split-type tool set further includes a small inner hole punch and a large inner hole punch. The small inner hole punch is installed in the first mounting slot of the tool mounting platform, and the large inner hole punch is installed in the second mounting slot of the tool mounting platform. The small inner hole punch and the large inner hole punch correspond to inner holes of different diameters on the sealing gasket.

[0009] As a further embodiment of this utility model: both the first mounting slot and the second mounting slot extend from the top of the tool mounting table to the bottom of the cover plate.

[0010] As a further embodiment of this utility model: the size of the first mounting slot is smaller than the size of the second mounting slot.

[0011] As a further embodiment of this utility model: the connecting member is a threaded bolt, and the left blade, right blade, front blade, rear blade, inner hole small punch and inner hole large punch are all detachably fixedly installed on the tool mounting table by the threaded bolt.

[0012] As a further aspect of this utility model: by adjusting the screwing depth of the threaded bolt, the extension amount of the left blade, right blade, front blade, and rear blade relative to the tool mounting table can be controlled.

[0013] As a further embodiment of this utility model: the cutting edges of the left blade, right blade, front blade and rear blade are arranged along the edge of the tool mounting table.

[0014] As a further embodiment of this utility model: the cutting edges of the left blade, right blade, front blade and rear blade are chamfered with an inclination angle of 45°.

[0015] As a further embodiment of this utility model, it also includes a base plate, and the cover plate is fixed on the base plate.

[0016] The beneficial effects of this utility model are:

[0017] (1) The present invention provides a punching tool for producing automotive gaskets. It is installed on a pneumatic stamping equipment. The separate tool group is driven by the stamping equipment to press down synchronously to complete the shearing of the gasket's burrs, which is more than 3 times more efficient than manual trimming.

[0018] (2) The left blade, right blade, front blade and rear blade of this utility model are installed around the tool mounting table by the cooperation of threaded bolts and threaded holes. The extension of the left blade, right blade, front blade and rear blade relative to the tool mounting table can be controlled by adjusting the screw depth of the threaded bolts, thereby adjusting the punching allowance, reducing the risk of poor punching or over-punching of the product, achieving a punching allowance accuracy of ±0.1mm, and avoiding damage to the sealing surface.

[0019] (3) The split-type tool set of this utility model includes a left blade, a right blade, a front blade, a rear blade, an inner hole small punch and an inner hole large punch, which are adapted to complex contour gaskets, such as a column valve structure with an inner hole. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 This is a first-view schematic diagram of the overall structure of a punching tool for producing automotive sealing gaskets according to this utility model.

[0022] Figure 2 This is a second-view schematic diagram of the overall structure of a punching tool for producing automotive sealing gaskets according to this utility model;

[0023] Figure 3 yes Figure 2 (Excluding the base plate) Structural diagram;

[0024] Figure 4 yes Figure 3 (Excluding the cover plate) Structural diagram.

[0025] In the diagram: 1. Cover plate; 101. Tool mounting platform; 102. Mounting slot 1; 103. Mounting slot 2; 2. Split tool set; 201. Left blade; 202. Right blade; 203. Front blade; 204. Rear blade; 205. Small internal punch; 206. Large internal punch; 3. Connector; 4. Base plate. Detailed Implementation

[0026] The technical solutions in the embodiments of this utility model are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Please see Figure 1-4 As shown, this utility model embodiment provides a punching tool for producing automotive gaskets, including a cover plate 1, a base plate 4, a split-type tool assembly 2, and a connecting piece 3.

[0030] Please see Figure 1As shown, the cover plate 1 is detachably fixed to the top of the base plate 4 by fastening bolts at the four corners. Please refer to... Figure 2 As shown, the bottom of the base plate 4 is equipped with a pneumatic equipment connection interface for mounting the base plate 4 onto the pneumatic stamping machine's worktable. Please refer to [link / reference]. Figure 1 As shown, a tool mounting platform 101 matching the contour of the sealing gasket is integrally provided in the middle of the front of the cover plate 1, and the split tool assembly 2 is detachably mounted on the tool mounting platform 101 via the connector 3.

[0031] Please see Figure 1 As shown, in one embodiment of this utility model, the split-type tool assembly 2 includes a left blade 201, a right blade 202, a front blade 203, a rear blade 204, a small inner hole punch 205, and a large inner hole punch 206. The left blade 201 and the right blade 202 are symmetrically arranged on the left and right sides of the tool mounting platform 101 via connectors 3, respectively. The front blade 203 and the rear blade 204 are arranged on the front and rear sides of the tool mounting platform 101 via connectors 3, respectively. The small inner hole punch 205 is installed in the first mounting slot 102 on the tool mounting platform 101 via connectors 3, and the large inner hole punch 206 is installed in the second mounting slot 103 on the tool mounting platform 101 via connectors 3. The small inner hole punch 205 and the large inner hole punch 206 correspond to different diameter inner holes on the sealing gasket.

[0032] Please see Figure 3 As shown, the size of the first mounting slot 102 is smaller than the size of the second mounting slot 103. Both the first mounting slot 102 and the second mounting slot 103 extend from the top of the tool mounting table 101 to the bottom of the cover plate 1. The first mounting slot 102 matches the size of the inner hole small punch 205, and the second mounting slot 103 matches the size of the inner hole large punch 206.

[0033] Please see Figure 1 As shown, in one embodiment of this utility model, the connecting member 3 is a threaded bolt. The left blade 201, right blade 202, front blade 203, and rear blade 204 have threaded holes on their sides that match the threaded bolts. They are installed around the tool mounting table 101 by the engagement of the threaded bolts with the threaded holes. The extension of the left blade 201, right blade 202, front blade 203, and rear blade 204 relative to the tool mounting table 101 can be controlled by adjusting the screw depth of the threaded bolts, thereby adjusting the punching allowance and reducing the risk of poor or excessive punching. Both the inner hole small punch 205 and the inner hole large punch 206 have central threaded holes. The inner hole small punch 205 is installed in the first mounting slot 102 by the engagement of the threaded bolts with the central threaded holes, and the inner hole large punch 206 is installed in the second mounting slot 103 by the engagement of the threaded bolts with the central threaded holes.

[0034] Specifically, in one embodiment of the present invention, the cutting edges of the left blade 201, right blade 202, front blade 203 and rear blade 204 are arranged along the edge of the tool mounting table 101, and the cutting edges of the left blade 201, right blade 202, front blade 203 and rear blade 204 are chamfered with an inclination angle of 45°.

[0035] When using this utility model:

[0036] Assembly and debugging: Fix the cover plate 1 to the base plate 4 with the four corner bolts. The left blade 201, right blade 202, front blade 203 and rear blade 204 are installed on the four edges of the tool mounting table 101 on the front of the cover plate 1 with threaded bolts. The initial screw depth of the threaded bolts is set to 5mm. The inner hole small punch 205 is installed in the first mounting slot 102 with the threaded bolt and the central threaded hole. The inner hole large punch 206 is installed in the second mounting slot 103 with the threaded bolt and the central threaded hole. If the flash residue is >0.2mm after the test cut, screw the threaded bolts at the corresponding positions of the left blade 201, right blade 202, front blade 203 and rear blade 204 in 0.5mm to increase the punching amount. If the sealing surface is scratched, unscrew the threaded bolts at the corresponding positions of the left blade 201, right blade 202, front blade 203 and rear blade 204 by 0.3mm to reduce the punching amount.

[0037] Punching: The base plate 4 of the punching fixture is hoisted onto the pneumatic punching equipment. The punching equipment is started, and the adjusted left blade 201, right blade 202, front blade 203, rear blade 204, inner hole small punch 205 and inner hole large punch 206 contact the surface of the sealing gasket under the action of thrust to complete the shearing.

[0038] The preferred embodiments of this utility model have been described in detail above and should not be considered as limiting the scope of this utility model. All equivalent changes and improvements made within the scope of the claims of this utility model should still fall within the patent coverage of this utility model.

Claims

1. A punching tool for producing automotive gaskets, characterized in that: It includes a cover plate (1), a split-type tool assembly (2) and a connector (3). The cover plate (1) has a tool mounting platform (101) on its front side that matches the contour of the sealing gasket. The split-type tool assembly (2) is detachably mounted on the tool mounting platform (101) through the connector (3).

2. The punching fixture for producing automotive gaskets according to claim 1, characterized in that: The split-type tool assembly (2) includes a left blade (201), a right blade (202), a front blade (203), and a rear blade (204). The left blade (201) and the right blade (202) are symmetrically arranged on the left and right sides of the tool mounting table (101), and the front blade (203) and the rear blade (204) are respectively arranged on the front and rear sides of the tool mounting table (101).

3. The punching fixture for producing automotive gaskets according to claim 2, characterized in that: The split-type tool set (2) also includes a small inner hole punch (205) and a large inner hole punch (206). The small inner hole punch (205) is installed in the first mounting slot (102) on the tool mounting table (101), and the large inner hole punch (206) is installed in the second mounting slot (103) on the tool mounting table (101). The small inner hole punch (205) and the large inner hole punch (206) correspond to different diameter inner holes on the sealing gasket.

4. The punching fixture for producing automotive gaskets according to claim 3, characterized in that: Both the first mounting slot (102) and the second mounting slot (103) extend from the top of the tool mounting table (101) to the bottom of the cover plate (1).

5. The punching fixture for producing automotive gaskets according to claim 4, characterized in that: The size of the first mounting slot (102) is smaller than the size of the second mounting slot (103).

6. The punching fixture for producing automotive gaskets according to claim 3, characterized in that: The connector (3) is a threaded bolt. The left blade (201), right blade (202), front blade (203), rear blade (204), inner hole small punch (205) and inner hole large punch (206) are all detachably fixed on the tool mounting table (101) by the threaded bolt.

7. The punching fixture for producing automotive gaskets according to claim 6, characterized in that: By adjusting the screw-in depth of the threaded bolt, the extension amount of the left blade (201), right blade (202), front blade (203), and rear blade (204) relative to the tool mounting table (101) is controlled.

8. The punching fixture for producing automotive gaskets according to claim 2, characterized in that: The cutting edges of the left blade (201), right blade (202), front blade (203) and rear blade (204) are arranged along the edge of the tool mounting table (101).

9. A punching fixture for producing automotive gaskets according to claim 8, characterized in that: The cutting edges of the left blade (201), right blade (202), front blade (203) and rear blade (204) are chamfered with an inclination angle of 45°.

10. A punching fixture for producing automotive gaskets according to any one of claims 1-9, characterized in that: It also includes a base plate (4), and the cover plate (1) is fixed on the base plate (4).

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