Auxiliary fixing lower die for counter-riveting expansion screw

Abstract

The utility model discloses a kind of reverse riveting expansion screw auxiliary fixing lower mould, more specifically related to screw processing field, including rotary table, the bottom of rotary table is provided with support seat, the bottom of support seat is provided with the supporting leg of workbench fixed connection, and the top edge of support seat is annular equidistance and installed with several ball that contact rotary table bottom, the bottom center of support seat is fixedly installed with motor that drives rotary table rotation, the outer wall of rotary table is annular equidistance and provided with several operating stations, each operating station includes fixed steel plate fixedly connected in the outer wall of rotary table, the top end of fixed steel plate is fixedly connected with connecting steel plate, and the end of connecting steel plate is inserted with cylindrical piece along vertical direction.The utility model uses multi-station design, it is convenient for multiple operators to use simultaneously, the nut fixing groove set on the top of cylindrical piece is convenient to turn screw, part of nut is placed into the inside of nut fixing groove to keep the placement of screw stable, so that the technical requirement of operator is reduced.

Description

Technical Field

[0001] This utility model relates to the field of screw processing, and more specifically, to a reverse riveting expansion screw to assist in fixing the lower mold. Background Technology

[0002] With the advancement of technology and the increasing demand for product diversification from customers, the requirements for the disassembly of various product components are becoming more and more stringent. Various small parts need to be riveted with various hand-tightened floating screws after molding.

[0003] The traditional method is to use a bending machine to press and rivet the nails. This method requires high levels of technical skills from the personnel and high-level equipment. Moreover, the operation is done by hand and the cycle is long. For a long time, the bending machine has been used to rivet floating screws. The slow operation and long time required, as well as the high level of technical skills required from the personnel, have been a problem that has hindered the progress of riveting screws. To address this issue, we have developed a riveting expansion screw to assist in fixing the lower mold. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, this utility model provides a reverse riveting expansion screw to assist in fixing the lower mold.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a riveting expansion screw-assisted fixing lower mold, comprising a turntable, a support base provided below the turntable, a support leg fixedly connected to the worktable at the bottom of the support base, and a plurality of ball bearings equidistantly installed in a ring at the top edge of the support base to contact the bottom of the turntable, a motor for driving the turntable to rotate fixedly installed at the bottom center of the support base, a plurality of operating positions equidistantly arranged in a ring on the outer wall of the turntable, each operating position including a fixed steel plate fixedly connected to the outer wall of the turntable, a connecting steel plate fixedly connected to the top of the fixed steel plate, a cylindrical member inserted vertically at the end of the connecting steel plate, and a nut fixing groove provided at the top of the cylindrical member.

[0006] As a further improvement to the technical solution of this utility model, the connecting steel plate is provided with through holes for cylindrical parts to pass through.

[0007] As a further improvement to the technical solution of this utility model, the cross-section of the perforation is circular, and the inner diameter of the perforation is larger than the outer diameter of the cross-section of the cylindrical part.

[0008] As a further improvement to the technical solution of this utility model, a first bolt is connected between the connecting steel plate and the fixing steel plate, the connecting steel plate has a through hole for the first bolt to pass through, and the top of the fixing steel plate has an internal thread groove corresponding to the end connection of the first bolt.

[0009] As a further improvement to the technical solution of this utility model, a square plate is welded to the bottom end of the cylindrical part, and the bottom of the square plate is embedded in the top of the fixed steel plate.

[0010] As a further improvement to the technical solution of this utility model, a square groove is provided on the top of the fixed steel plate corresponding to the outside of the square plate, and the depth of the square groove is greater than the thickness of the square plate.

[0011] As a further improvement to the technical solution of this utility model, the outer wall of the connecting steel plate is connected to a second bolt of a locking cylindrical component, and the interior of the connecting steel plate is provided with an internal thread hole that matches the external thread structure of the second bolt.

[0012] The beneficial effects of this utility model are:

[0013] The anti-riveting expansion screw auxiliary fixing lower mold designed in this utility model is actually a positioning fixture for processing anti-riveting expansion screws. The positioning fixture can be moved to the riveting machine for operation, which saves labor time, reduces the technical requirements of personnel, and can adapt to the requirements of mass production. The fixture adopts a multi-station design, which is convenient for multiple operators to use at the same time. The nut fixing groove set on the top of the cylindrical part makes it easy to reverse the screw and place the nut part into the nut fixing groove to keep the screw stable, which reduces the technical requirements of the operator. When only one person is operating, the other operating stations can be used as backups. When one operating station is damaged, other operating stations can be used to continue to be used by changing the station. Moreover, the various parts of the structure at each operating station are easy to assemble and disassemble. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a partial structural schematic diagram of the present invention.

[0016] Figure 3 This is a schematic diagram of the connection structure of the fixed steel plate, the connecting steel plate, and the cylindrical component in this utility model.

[0017] Figure 4 This is a schematic diagram showing the connection between the cylindrical component and the fixed steel plate in this utility model.

[0018] Figure 5 This is a schematic diagram of the connecting steel plate in this utility model.

[0019] The attached diagram is labeled as follows: 1. Turntable; 2. Support base; 3. Support leg; 4. Motor; 5. Ball bearing; 6. Fixed steel plate; 7. Connecting steel plate; 8. Cylindrical component; 9. First bolt; 10. Second bolt; 11. Nut fixing groove; 12. Square plate; 13. Square groove; 14. Internal thread groove; 15. Through hole; 16. Through hole; 17. Internal thread hole. Detailed Implementation

[0020] 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.

[0021] As attached Figure 1-5 The diagram shows a method for fixing a lower mold with an expansion bolt for riveting. It includes a turntable 1, a support base 2 below the turntable 1, a support leg 3 fixedly connected to the worktable at the bottom of the support base 2, and a number of ball bearings 5 ​​that contact the bottom of the turntable 1 are installed in a ring at equal intervals at the top edge of the support base 2. A motor 4 that drives the turntable 1 to rotate is fixedly installed at the center of the bottom of the support base 2. A number of operating positions are arranged in a ring at equal intervals on the outer wall of the turntable 1. Each operating position includes a fixed steel plate 6 fixedly connected to the outer wall of the turntable 1. A connecting steel plate 7 is fixedly connected to the top of the fixed steel plate 6. A cylindrical part 8 is inserted vertically at the end of the connecting steel plate 7. A nut fixing groove 11 is provided on the top of the cylindrical part 8.

[0022] As attached Figure 1-3 and attached Figure 5 As shown, the connecting steel plate 7 has a through hole 16 for the cylindrical part 8 to pass through. The cross-section of the through hole 16 is circular, and the inner diameter of the through hole 16 is larger than the outer diameter of the cross-section of the cylindrical part 8, so that the cylindrical part 8 can pass through the interior of the connecting steel plate 7 stably.

[0023] As attached Figure 1-5 As shown, a first bolt 9 is connected between the connecting steel plate 7 and the fixed steel plate 6. The connecting steel plate 7 has a through hole 15 for the first bolt 9 to pass through. The top of the fixed steel plate 6 has an internal thread groove 14 corresponding to the end connection of the first bolt 9, which facilitates the assembly and disassembly of the connecting steel plate 7 and the fixed steel plate 6.

[0024] As attached Figure 4As shown, a square plate 12 is welded to the bottom of the cylindrical component 8. The bottom of the square plate 12 is embedded in the top of the fixed steel plate 6. A square groove 13 is provided on the top of the fixed steel plate 6 corresponding to the outside of the square plate 12. The depth of the square groove 13 is greater than the thickness of the square plate 12. This facilitates the assembly process by first embedding the square plate 12 at the bottom of the cylindrical component 8 into the top of the fixed steel plate 6, then passing the connecting steel plate 7 from top to bottom through the outside of the cylindrical component 8, and then using the first bolt 9 to connect and fix the connecting steel plate 7 to the fixed steel plate 6. This allows the cylindrical component 8 to remain stable in the vertical direction when the square plate 12 is pressed down by the connecting steel plate 7.

[0025] As attached Figure 1-3 and attached Figure 5 As shown, the outer wall of the connecting steel plate 7 is connected to the second bolt 10 for locking the cylindrical part 8. The interior of the connecting steel plate 7 is provided with an internal thread hole 17 that matches the external thread structure of the second bolt 10. This allows the cylindrical part 8 to be locked and fixed by the second bolt 10 after the connecting steel plate 7 is fitted onto the outside of the cylindrical part 8 and connected to the fixing steel plate 6, thereby further improving the stability of the cylindrical part 8 and preventing shaking during subsequent processing.

[0026] Working principle: This utility model designs a reverse riveting expansion screw to assist in fixing the lower mold. The specific structure is shown in the attached instruction manual. Figure 1-5 As shown, the anti-riveting expansion screw auxiliary fixing lower mold designed in this technical solution is actually a positioning fixture for processing anti-riveting expansion screws. This fixture adopts a multi-station design, which is convenient for multiple operators to use at the same time. The nut fixing groove 11 set on the top of the cylindrical part 8 makes it easy to turn the screw over and put the nut part into the nut fixing groove 11 to keep the screw stable. The turntable 1 is driven to rotate by the motor 4 controlled by an external switch. When only one person is operating, the other operating stations can be used as backups. When one operating station is damaged, other operating stations can be used to continue to be used when changing the station. When assembling the operating station, firstly, the square plate 12 at the bottom of the cylindrical part 8 is embedded in the top of the fixing steel plate 6. Then, the connecting steel plate 7 is passed through the outside of the cylindrical part 8 from top to bottom. Then, the first bolt 9 is used to connect and fix the connecting steel plate 7 and the fixing steel plate 6. Then, the cylindrical part 8 is kept stable in the vertical direction when the connecting steel plate 7 presses down on the square plate 12, which facilitates the assembly and disassembly of the various parts at the operating station.

[0027] In the accompanying drawings of the embodiments disclosed in this utility model, only the structures involved in the embodiments of this utility model are shown. Other structures can be referred to with ordinary design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A method for fixing a lower mold with an expansion screw assisted by a riveting bolt, characterized in that: The system includes a turntable (1), a support base (2) is provided below the turntable (1), a support leg (3) is provided at the bottom of the support base (2) and is fixedly connected to the worktable, and a number of ball bearings (5) that contact the bottom of the turntable (1) are installed in a ring at equal intervals at the top edge of the support base (2), and a motor (4) that drives the turntable (1) to rotate is fixedly installed at the bottom center of the support base (2). A number of operating positions are provided in a ring at equal intervals on the outer wall of the turntable (1), and each operating position includes a fixed steel plate (6) fixedly connected to the outer wall of the turntable (1). A connecting steel plate (7) is fixedly connected to the top of the fixed steel plate (6), and a cylindrical part (8) is inserted into the end of the connecting steel plate (7) in the vertical direction. A nut fixing groove (11) is provided at the top of the cylindrical part (8).

2. The anti-rivet expansion screw assisting in fixing the lower mold according to claim 1, characterized in that: The connecting steel plate (7) has a through hole (16) inside for the cylindrical part (8) to pass through.

3. The anti-rivet expansion screw assisting in fixing the lower mold according to claim 2, characterized in that: The cross-section of the perforation (16) is circular, and the inner diameter of the perforation (16) is larger than the outer diameter of the cross-section of the cylindrical part (8).

4. The anti-rivet expansion screw assisting in fixing the lower mold according to claim 1, characterized in that: A first bolt (9) is connected between the connecting steel plate (7) and the fixing steel plate (6). The connecting steel plate (7) has a through hole (15) for the first bolt (9) to pass through. The top of the fixing steel plate (6) has an internal thread groove (14) corresponding to the end connection of the first bolt (9).

5. The anti-rivet expansion screw assisting in fixing the lower mold according to claim 1, characterized in that: The bottom end of the cylindrical component (8) is welded with a square plate (12), and the bottom of the square plate (12) is embedded in the top of the fixed steel plate (6).

6. The anti-rivet expansion screw assisting in fixing the lower mold according to claim 5, characterized in that: The top of the fixed steel plate (6) is provided with a square groove (13) corresponding to the outside of the square plate (12), and the depth of the square groove (13) is greater than the thickness of the square plate (12).

7. The anti-rivet expansion screw assisting in fixing the lower mold according to claim 1, characterized in that: The outer wall of the connecting steel plate (7) is connected to a second bolt (10) for locking cylindrical parts (8), and the interior of the connecting steel plate (7) is provided with an internal thread hole (17) that matches the external thread structure of the second bolt (10).

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