Tool for reworking rear cover hinge

Abstract

The utility model relates to a tool for reworking a rear cover hinge, which comprises a base, an ejector assembly is arranged on the upper surface of the base, and the ejector assembly comprises an ejector pin and a spin riveting pin used for ejecting out a spin riveting pin joint of the rear cover hinge; the discharging plate is arranged above the base, a positioning block is arranged on the upper surface of the discharging plate, a through hole with the axis perpendicular to the positioning block is formed in the positioning block, the spin riveting pin connecting position of the rear cover hinge placed on the positioning block right faces the through hole, and the end, away from the base, of the ejector pin is located in the through hole. The reset assemblies are symmetrically arranged between the base and the discharging plate and used for resetting the discharging plate after the spin riveting pin on the rear cover hinge is ejected out; the upper pressing plate is arranged above the discharging plate, second guide columns are symmetrically arranged on the lower surfaces of the two ends of the upper pressing plate, and the ends, away from the upper pressing plate, of the second guide columns penetrate through the discharging plate and are in sliding connection with the discharging plate; a pressing head is arranged on the lower surface of the upper pressing plate and used for pressing the rear cover hinge. Compared with the prior art, the reworking efficiency is high, the operation is simple, and the safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile spare parts production, in particular to a tool used for reworking a rear cover hinge. Background Art

[0002] The car rear cover hinge consists of a first rotating part and a second rotating part connected by a rivet pin. During the riveting process, the rivet pin is skewed, which makes the torque of the car rear cover hinge unable to meet the requirements and needs to be reworked and riveted again.

[0003] At present, the rework operation of the rear cover hinge is done manually, which has the problems of low rework efficiency and easy damage of the reworked products; in addition, there are safety risks for employees during the operation. Utility Model Content

[0004] The purpose of the present utility model is to provide a tool for reworking the hinge of a rear cover in order to overcome at least one of the defects of the prior art.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A tool for reworking a rear cover hinge, the rear cover hinge comprising a first rotating member and a second rotating member connected by a rivet pin, comprising:

[0007] The base has an ejector assembly on its upper surface, the ejector assembly includes an ejector pin, which is used to eject the rivet pin at the connection of the rear cover hinge rivet pin;

[0008] A material discharge plate is arranged above the base, and a positioning block is arranged on its upper surface. A through hole is arranged on the positioning block, and the axis of the through hole is perpendicular to the positioning block. The connection part of the rivet pin of the rear cover hinge placed on the positioning block is directly opposite to the through hole, and the end of the ejector pin away from the base is located in the through hole;

[0009] A reset assembly symmetrically arranged between the base and the unloading plate is used to reset the unloading plate after the rivet pin on the hinge of the rear cover is ejected;

[0010] The upper pressing plate arranged above the discharge plate has second guide pillars symmetrically arranged on the lower surfaces of both ends. The end of the second guide pillar away from the upper pressing plate passes through the discharge plate and is slidably connected to the discharge plate. A pressure head is also arranged on the lower surface of the upper pressing plate for tightening the rear cover hinge.

[0011] Furthermore, the ejector pin is divided into an ejector section, a middle section and a supporting section which are connected to each other.

[0012] Furthermore, the end surface of the ejection section is provided with an arc-shaped groove matching with the arc-shaped protrusion of the rotary rivet pin.

[0013] Furthermore, the support section is a disc-shaped structure.

[0014] Furthermore, the ejection assembly also includes a first guide column, a first clamping block and a second clamping block; the first end of the first guide column is fixedly connected to the base, and the first clamping block is fixedly connected; the upper surface of the first clamping block is provided with a disc-shaped groove matching the disc-shaped structure; the second clamping block is provided with a second through hole whose axis is perpendicular to the second clamping block; the disc-shaped groove of the first clamping block is provided with a disc-shaped structure of an ejection pin, and the second clamping block passes through the ejection section and the middle section in sequence through the second through hole and abuts against the first clamping block.

[0015] Further, the reset assembly includes a third guide post, a fourth guide post, and an elastic member for reset; the third guide post is fixedly connected to the upper surface of the base, and the elastic member is sleeved on the third guide post; the fourth guide post is fixedly connected to the lower surface of the discharge plate; the fourth guide post is cylindrical, the inner diameter of the fourth guide post is larger than the outer diameter of the third guide post, and the elastic member is sleeved on the third guide post and abuts against the elastic member. Preferably, the elastic member is a spring.

[0016] Furthermore, the end of the pressing end of the pressing head is provided with a layer of flexible material to avoid scratches during pressing. Preferably, the flexible material layer is a rubber layer.

[0017] Furthermore, the tooling is also provided with a gas-liquid booster connected to the upper pressing plate, for driving the upper pressing plate to move up and down.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] (1) The utility model provides a tool for reworking the rear cover hinge. By moving the upper pressure plate downward, the pressure head of the loading plate abuts against the rear cover hinge to be reworked, and the loading plate and the unloading plate clamp the rear cover hinge to be reworked. Then the upper pressure plate is moved downward, driving the unloading plate to move downward at the same time. The rivet pin connection of the rear cover hinge will abut against the ejection pin and eject the rivet pin. Compared with manual rework, the utility model not only has high rework efficiency, but also is simple, convenient and safe to operate.

[0020] (2) The utility model provides a tool for reworking the hinge of a rear cover, which clamps the ejector pin by a first clamping block and a second clamping block, thereby enhancing the stability of the ejector pin and ensuring the ejection efficiency and quality.

[0021] (3) The utility model provides a tool for reworking the hinge of a rear cover, wherein the ejection end of the ejection pin is provided with an arc-shaped groove that matches the arc-shaped protrusion of the rivet pin, thereby ensuring that the ejection pin and the rivet pin abut against each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of a tooling for reworking a rear cover hinge in an embodiment;

[0023] Figure 2 A schematic diagram of a top pin in an embodiment;

[0024] Figure 3 A rear cover hinge to be reworked in the prior art;

[0025] As shown in the figure, the numbers are as follows: 1-base; 2-elastic member; 3-fourth guide column; 4-ejection pin; 41-arc groove; 42-ejection section; 43-middle section; 44-support section; 5-discharge plate; 6-pressure head; 7-upper pressure plate; 8-positioning block; 9-second guide column; 10-second clamping block; 11-first clamping block; 12-first guide column; 13-third guide column; 14-rear cover hinge to be reworked. DETAILED DESCRIPTION

[0026] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0027] A tool for reworking a rear cover hinge, the rear cover hinge comprising a first rotating member and a second rotating member connected by a rivet pin, comprising: a base 1, an upper surface of which is provided with an ejection assembly, the ejection assembly comprising an ejection pin, for ejecting the rivet pin at the rivet pin connection of the rear cover hinge; a discharge plate 5 arranged above the base 1, an upper surface of which is provided with a positioning block 8, the positioning block 8 is provided with a through hole with an axis perpendicular to the positioning block 8, the rivet pin connection of the rear cover hinge placed on the positioning block 8 is directly opposite to the through hole, and the end of the ejection pin away from the base 1 is located in the through hole; a reset assembly symmetrically arranged between the base 1 and the discharge plate 5, for resetting the discharge plate 5 after ejecting the rivet pin on the rear cover hinge; an upper pressing plate 7 arranged above the discharge plate 5, the lower surfaces of both ends of which are symmetrically provided with second guide pillars 9, the end of the second guide pillar 9 away from the upper pressing plate 7 passes through the discharge plate 5 and is slidably connected to the discharge plate 5; a pressing head 6 is also provided on the lower surface of the upper pressing plate 7, for pressing the rear cover hinge.

[0028] In one embodiment of the utility model, the ejector pin 4 is divided into a connected ejector section 42, a middle section 43 and a support section 44; the end surface of the ejector section 42 is provided with an arc-shaped groove 41 that matches the arc-shaped protrusion of the rivet pin; the support section is a disc-shaped structure.

[0029] In one embodiment of the utility model, the ejection assembly also includes a first guide column 12, a first clamping block 11 and a second clamping block 10; the first end of the first guide column 12 is fixedly connected to the base 1, and the first clamping block 11 is fixedly connected; the upper surface of the first clamping block 11 is provided with a disc-shaped groove matching the disc-shaped structure; the second clamping block 10 is provided with a second through hole whose axis is perpendicular to the second clamping block 10; the disc-shaped groove of the first clamping block 11 is provided with a disc-shaped structure of an ejection pin, and the second clamping block 10 passes through the ejection section and the middle section in sequence through the second through hole and abuts against the first clamping block 11.

[0030] In one embodiment of the utility model, the reset assembly includes a third guide post 13, a fourth guide post 3, and an elastic member 2 for resetting; the third guide post 13 is fixedly connected to the upper surface of the base 1, and the elastic member 2 is sleeved on the third guide post 13; the fourth guide post 3 is fixedly connected to the lower surface of the discharge plate 5; the fourth guide post 3 is cylindrical, the inner diameter of the fourth guide post 3 is larger than the outer diameter of the third guide post 13, and the elastic member 2 is sleeved on the third guide post 13 and abuts against the elastic member 2.

[0031] In an embodiment of the present invention, the elastic member 2 is a spring.

[0032] In one embodiment of the present invention, a flexible material layer is provided at the end of the pressing end of the pressing head to avoid scratches during pressing; the flexible material layer is a rubber layer.

[0033] In one embodiment of the utility model, the tooling is further provided with a gas-liquid booster connected to the upper pressing plate, for driving the upper pressing plate to move up and down. Example

[0034] Please see Figure 1-3 , a tool for reworking the rear cover hinge, the rear cover hinge includes a first rotating member and a second rotating member connected by a rivet pin, including: a base 1, an upper surface of which is provided with an ejector assembly, the ejector assembly includes an ejector pin, which is used to eject the rivet pin at the rivet pin connection of the rear cover hinge; a discharge plate 5 arranged above the base 1, an upper surface of which is provided with a positioning block 8, the positioning block 8 is provided with a through hole with an axis perpendicular to the positioning block 8, and the rivet pin connection of the rear cover hinge placed on the positioning block 8 is directly opposite to the through hole, and the end of the ejector pin away from the base 1 is located in the through hole; a reset assembly symmetrically arranged between the base 1 and the discharge plate 5, used to reset the discharge plate 5 after ejecting the rivet pin on the rear cover hinge; an upper pressing plate 7 arranged above the discharge plate 5, and a second guide column 9 is symmetrically arranged on the lower surface of both ends of the upper pressing plate 7, and the end of the second guide column 9 away from the upper pressing plate 7 passes through the discharge plate 5 and is slidably connected to the discharge plate 5; a pressing head 6 is also provided on the lower surface of the upper pressing plate 7, which is used to press the rear cover hinge.

[0035] In this embodiment, the ejector pin 4 is divided into a connected ejector section 42, a middle section 43 and a support section 44; the end surface of the ejector section 42 is provided with an arc-shaped groove 41 that matches the arc-shaped protrusion of the rivet pin; and the support section is a disc-shaped structure.

[0036] In this embodiment, the ejection assembly also includes a first guide column 12, a first clamping block 11 and a second clamping block 10; the first end of the first guide column 12 is fixedly connected to the base 1, and the first clamping block 11 is fixedly connected; the upper surface of the first clamping block 11 is provided with a disc-shaped groove matching the disc-shaped structure; the second clamping block 10 is provided with a second through hole whose axis is perpendicular to the second clamping block 10; the disc-shaped groove of the first clamping block 11 is provided with a disc-shaped structure of an ejection pin, and the second clamping block 10 passes through the ejection section and the middle section in sequence through the second through hole and abuts against the first clamping block 11.

[0037] In this embodiment, the reset assembly includes a third guide post 13, a fourth guide post 3, and an elastic member 2 for reset; the third guide post 13 is fixedly connected to the upper surface of the base 1, and the elastic member 2 is sleeved on the third guide post 13; the fourth guide post 3 is fixedly connected to the lower surface of the discharge plate 5; the fourth guide post 3 is cylindrical, and the inner diameter of the fourth guide post 3 is greater than the outer diameter of the third guide post 13, and the elastic member 2 is sleeved on the third guide post 13 and abuts against the elastic member 2. The elastic member 2 is a spring.

[0038] In this embodiment, a flexible material layer is provided at the end of the pressing end of the pressing head to avoid scratches during pressing; the flexible material layer is a rubber layer.

[0039] In this embodiment, the tooling is further provided with a gas-liquid booster connected to the upper pressing plate, for driving the upper pressing plate to move up and down.

[0040] Specific working process:

[0041] The trial machine tool of the tooling of this embodiment is a gas-liquid booster, that is, a gas-liquid booster. The reworked rear cover hinge 14 is placed on the positioning block 8 on the discharge plate 5, and the machine tool is started. The pressure rod of the gas-liquid booster presses down the upper pressure plate 7, and the upper pressure plate 7 moves down to clamp the rear cover hinge 14 to be reworked with the discharge plate 5. The pressure rod of the gas-liquid booster continues to move downward, and the rivet pin connection of the rear cover hinge 14 to be reworked first abuts against the ejection pin 4, and then is ejected by the ejection pin 4. After the rivet pin is successfully ejected, the gas-liquid booster is reset, and the discharge plate 5 returns to its original position under the action of the reset component, and the separated parts are taken away, and the rework of the rear cover hinge is completed.

[0042] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A tool for reworking a rear cover hinge, the rear cover hinge comprising a first rotating member and a second rotating member connected by a rivet pin, characterized in that: include: A base (1) having an ejection assembly on its upper surface, the ejection assembly comprising an ejection pin for ejecting a rivet pin at a connection point of a rear cover hinge rivet pin; A discharge plate (5) is arranged above the base (1), and a positioning block (8) is provided on its upper surface. The positioning block (8) is provided with a through hole whose axis is perpendicular to the positioning block (8). The rivet pin connection of the rear cover hinge placed on the positioning block (8) is directly opposite to the through hole, and the end of the ejector pin away from the base (1) is located in the through hole; A reset assembly symmetrically arranged between the base (1) and the discharge plate (5), used for resetting the discharge plate (5) after the rivet pin on the hinge of the rear cover is ejected; An upper pressing plate (7) disposed above the discharge plate (5) has second guide pillars (9) symmetrically disposed on the lower surfaces of both ends thereof, and one end of the second guide pillar (9) away from the upper pressing plate (7) penetrates the discharge plate (5) and is slidably connected to the discharge plate (5); a pressing head (6) is also disposed on the lower surface of the upper pressing plate (7) for pressing the hinge of the rear cover.

2. A tool for reworking the rear cover hinge according to claim 1, characterized in that: The ejection pin (4) is divided into a connected ejection section (42), a middle section (43) and a supporting section (44).

3. A tool for reworking the hinge of a rear cover according to claim 2, characterized in that: The end surface of the ejection section (42) is provided with an arc-shaped groove (41) that matches the arc-shaped protrusion of the rotary rivet pin.

4. The tooling for rear cover hinge rework according to claim 2, characterized in that: The supporting section is a disc-shaped structure.

5. The tooling for reworking the rear cover hinge according to claim 4, characterized in that: The ejection assembly further comprises a first guide column (12), a first clamping block (11) and a second clamping block (10); The first end of the first guide column (12) is fixedly connected to the base (1) and the first clamping block (11); the first clamping block (11) has an upper surface provided with a disc-shaped groove matching the disc-shaped structure; the second clamping block (10) has a second through hole whose axis is perpendicular to the second clamping block (10); The disc-shaped groove of the first clamping block (11) is provided with a disc-shaped structure of an ejection pin, and the second clamping block (10) passes through the ejection section and the middle section in sequence through the second through hole and abuts against the first clamping block (11).

6. The tooling for rear cover hinge rework according to claim 1, characterized in that: The resetting assembly comprises a third guide post (13), a fourth guide post (3), and an elastic member (2) for resetting; The third guide post (13) is fixedly connected to the upper surface of the base (1), and the elastic member (2) is sleeved on the third guide post (13); The fourth guide post (3) is fixedly connected to the lower surface of the discharge plate (5); the fourth guide post (3) is cylindrical, the inner diameter of the fourth guide post (3) is larger than the outer diameter of the third guide post (13), and the elastic member (2) is sleeved on the third guide post (13) and abuts against the elastic member (2).

7. A tool for reworking the hinge of a rear cover according to claim 6, characterized in that: The elastic member (2) is a spring.

8. The tooling for reworking the rear cover hinge according to claim 1, characterized in that: The tooling is also provided with a gas-liquid booster connected to the upper pressing plate, which is used to drive the upper pressing plate to move up and down.

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