A locking hot riveting clamp

Abstract

This utility model discloses a locking hot riveting fixture, including a pad, a base plate, a support clamping block, a movable clamping block, and a fixed clamping block. The base plate is positioned above the pad. The movable clamping block, the fixed clamping block, and the support clamping block are positioned below the machining hole in the middle of the base plate. The support clamping block and the fixed clamping block are fixed to the base plate. The movable clamping block and the fixed clamping block are respectively positioned on both sides of the support clamping block. A float plate is positioned above the movable clamping block and the fixed clamping block. The movable clamping block is positioned at the end of a cylinder. The float plate is positioned above a limiting post. A spring is positioned between the float plate and the limiting post. This utility model uses the support clamping block to support the workpiece and uses the movable clamping block to restrict the workpiece between the movable clamping block and the fixed clamping block. As the workpiece deforms due to heat, it causes the float plate to descend. After welding, this utility model can realize the hot riveting process of the workpiece using a medium-frequency spot welding machine.

Description

Technical Field

[0001] This utility model relates to the field of tooling and fixture technology, specifically a locking hot riveting fixture. Background Technology

[0002] Currently, door locks are an indispensable part of automobiles. They are made by hot riveting steel wire and latch together. During the normal heating and riveting process, existing hot riveting clamps often cause problems such as steel wire cracking and poor riveting diameter due to the intense alternation of hot and cold. In addition, defective products are generated during the processing, which affects product quality. Utility Model Content

[0003] The purpose of this utility model is to provide a locking hot riveting clamp to solve the problems mentioned in the background art, such as the frequent cracking of the steel wire and poor riveting diameter due to the intense alternation of hot and cold during the normal heating and riveting process of the existing hot riveting clamp.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a locking hot riveting fixture, comprising a pad, a base plate, a support clamping block, a movable clamping block, and a fixed clamping block. The base plate is positioned above the pad, and the movable clamping block, the fixed clamping block, and the support clamping block are positioned below the machining hole in the middle of the base plate. The support clamping block and the fixed clamping block are fixed to the base plate. The movable clamping block and the fixed clamping block are respectively positioned on both sides of the support clamping block. A float plate is positioned above the movable clamping block and the fixed clamping block. The movable clamping block is positioned at the end of a cylinder. The float plate is positioned above a limiting post, and a spring is positioned between the float plate and the limiting post.

[0005] The cylinder is fixed to the pad by a cylinder support.

[0006] The first bakelite board component and the second bakelite board component are respectively provided on both sides of the machining hole in the middle of the base plate.

[0007] The base plate is fixed above the pad by support columns.

[0008] A pressure column is installed above the base plate, and the pressure column is set on the upper fixed plate.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] This invention uses a support clamping block to support the workpiece, and a movable clamping block to restrict the workpiece between the movable clamping block and the fixed clamping block. A float plate is provided above the movable and fixed clamping blocks, and a spring is provided between the float plate and the limiting post. After welding is started, the workpiece deforms due to heat, causing the float plate to descend. After welding is completed, the cylinder drives the movable clamping block to retract, and the float plate, under the rebound force of the spring, causes the workpiece to disengage from the groove of the fixed clamping block. The workpiece is then manually unloaded to complete the work. This invention can realize the hot riveting process of the workpiece using a medium frequency spot welding machine. It is simple to operate and has significant achievements in equipment utilization and cost savings. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0012] Figure 2 This is a schematic diagram of the installation structure of the support clamping block, the movable clamping block, and the fixed clamping block in this utility model.

[0013] Figure 3 This is a schematic diagram of the installation structure of the upper electrode and water pipe in this utility model.

[0014] In the above figures, the components are: pad 1, base plate 2, support clamping block 3, movable clamping block 4, fixed clamping block 5, support column 6, cylinder 7, floating plate 8, limiting column 9, spring 10, workpiece 11, cylinder support 12, first bakelite board component 13, second bakelite board component 14, pressure column 15, upper fixed plate 16, upper electrode 17, upper electrode seat 18, and water guide pipe 19. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0016] like Figure 1-3As shown, a locking hot riveting fixture includes a pad plate 1, a base plate 2, a support clamping block 3, a movable clamping block 4, and a fixed clamping block 5. The base plate 2 is positioned above the pad plate 1, serving as the overall mounting structure of the device. The base plate 2 is the main area for welding operations, and a machining hole is provided in the center of the base plate 2 for inserting the workpiece 11 and for welding activities. The support clamping block 3 and the fixed clamping block 5 are fixed to the base plate 2. The movable clamping block 4 and the fixed clamping block 5 are respectively positioned on both sides of the support clamping block 3. When the workpiece 11 is placed on the support clamping block 3, the movable clamping block 4 is driven to restrain the workpiece 11 within the movable clamping block 4 and the fixed clamping block 5. Between them, the movable clamping block 4 is located at the end of the cylinder 7. The cylinder 7 can drive the movable clamping block 4 to move. A floating plate 8 is provided above the movable clamping block 4 and the fixed clamping block 5. The floating plate 8 is located above the limiting post 9. A spring 10 is provided between the floating plate 8 and the limiting post 9. The workpiece 11 is placed against the fixed clamping block 5. The cylinder 7 drives the movable clamping block 4 to clamp the workpiece 11 and start welding. As the workpiece 11 deforms due to heat, it causes the floating plate 8 to descend. After welding is completed, the cylinder 7 drives the movable clamping block 4 to retract. The floating plate 8 is rebounded by the spring 10 and causes the workpiece 11 to disengage from the groove of the fixed clamping block 5. The workpiece is then manually unloaded to complete the work.

[0017] Installation of cylinder 7: Cylinder 7 is fixed on pad 1 by cylinder support 12.

[0018] A first bakelite board component 13 and a second bakelite board component 14 are respectively provided on both sides of the machining hole in the middle of the base plate 2. Due to the insulation properties and good mechanical strength of the bakelite board, this utility model uses bakelite board for the welding part of workpiece 11.

[0019] Installation relationship between base plate 2 and pad 1: base plate 2 is fixed above pad 1 by support column 6.

[0020] A pressure column 15 is provided above the base plate 2. The pressure column 15 is set on the upper fixed plate 16, which is fixed on the drive device of the welding machine. As the welding gun moves, the pressure column 15 moves together with the upper fixed plate 16 and the riveting upper electrode 17 when the workpiece 11 is welded. The workpiece 11 is further fixed by the pressure column 15. The upper electrode 17 is set on the upper electrode seat 18, and the motor seat is fixed on the upper fixed plate 16. The upper electrode 17 is a common structure for welding machines used for hot riveting. The workpiece 11 is hot riveted by the upper electrode 17. The upper fixed plate 16 is also provided with a water pipe 19, which supplies water to cool the workpiece 11 after hot riveting.

Claims

1. A lock-buckle hot riveter, characterized by, It includes a pad, a base plate, a support clamping block, a movable clamping block, and a fixed clamping block. The base plate is positioned above the pad plate. The movable clamping block, the fixed clamping block, and the support clamping block are positioned below the machining hole in the middle of the base plate. The support clamping block and the fixed clamping block are fixed to the base plate. The movable clamping block and the fixed clamping block are respectively positioned on both sides of the support clamping block. A float plate is positioned above the movable clamping block and the fixed clamping block. The movable clamping block is positioned at the end of the cylinder. The float plate is positioned above the limit post. A spring is positioned between the float plate and the limit post.

2. A lock-buckle hot riveter according to claim 1, wherein The cylinder is fixed to the pad by a cylinder support.

3. The locking hot riveting fixture according to claim 1, characterized in that, The first bakelite board component and the second bakelite board component are respectively provided on both sides of the machining hole in the middle of the base plate.

4. A locking hot riveting fixture according to claim 1, characterized in that, The base plate is fixed above the pad by support columns.

5. A locking hot riveting fixture according to claim 1, characterized in that, A pressure column is installed above the base plate, and the pressure column is set on the upper fixed plate.

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