Tightening mechanism for tightening machine

Abstract

The utility model discloses a tightening mechanism for a tightening machine, and relates to the technical field of assembly production lines. Comprising an installation base plate, linear guide rails are installed at the front end and the rear end of the bottom of the installation base plate, counter-force blocks are installed on the linear guide rails, positioning pin bases are installed on the linear guide rails, inserting and pulling pins are inserted into the positioning pin bases, inserting holes are evenly distributed in the counter-force blocks, and the inserting and pulling pins are inserted into the inserting holes; and guide rail clamps are mounted on two slide blocks of the linear slide rail. According to the tightening mechanism for the tightening machine, the arranged double shafts are designed in a variable-pitch mode, the ball screw type linear module drives the fixing plate to do linear displacement, so that the distance between the double shafts is changed, after the distance is changed in place, the fixing plate is locked and fixed through the guide rail clamping device, tightening of fasteners of products of various specifications and models is completed, the automatic assembly level is greatly improved, and the production efficiency is improved. The assembling time is shortened, and the equipment change cost of tightening equipment and even a production assembly line is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of assembly production lines, in particular to a tightening mechanism for a tightening machine. Background Art

[0002] During the engine assembly process, almost all parts are connected with one or more bolts. Among them, the connection between the cylinder block and the cylinder head is particularly important. The bolts are tightened to produce uniform and appropriate compression force on the cylinder head gasket to seal the high-temperature and high-pressure gas in the cylinder, while also sealing the cooling water and lubricating oil. At present, the tightening of the cylinder head bolts mainly relies on the operation of a tightening machine.

[0003] Since there are multiple bolts on the engine cylinder head, in order to meet the requirements of product production rhythm, multiple tightening shafts are usually required in the screw tightening process. The installation method of multiple tightening shafts is usually fixed and the spacing cannot be adjusted. The existing fixed-distance screw tightening mechanism obviously does not meet the production requirements. Utility Model Content

[0004] The utility model provides a tightening mechanism for a tightening machine to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tightening mechanism for a tightening machine, comprising a mounting base, linear guides are mounted on the front and rear ends of the bottom of the mounting base, and a reaction block is mounted on the linear guide, a positioning pin seat is mounted on the linear guide, and a plug-in pin is plugged on the positioning pin seat, and sockets are evenly distributed on the reaction block, and the plug-in pin is plugged into the sockets, linear slides are mounted on the left and right ends of the bottom of the mounting base, and guide rail clamps are mounted on the two sliders of the linear slide, a first fixing plate and a second fixing plate are respectively mounted on the sliders of the linear slide, and connecting columns are both mounted on the first fixing plate and the second fixing plate, a tightening shaft is mounted on the first fixing plate and the second fixing plate, a ball screw type linear module is mounted on the mounting base, and a connecting piece is mounted on the two nut seats of the ball screw type linear module, the connecting piece is tightly matched and clamped with the connecting column, columns are mounted around the mounting base, and a connecting plate is mounted on the top of the column, and a protective cover is mounted on the outer side of the column.

[0006] Furthermore, the front end portion of the mounting substrate extends out of the protective cover, and a handle seat is provided at the front end portion of the mounting substrate.

[0007] Furthermore, a through opening is opened in the middle of the mounting base plate, and the lower part of the tightening shaft passes through the through opening to be connected with the first fixing plate and the second fixing plate.

[0008] Furthermore, the lower portion of the tightening shaft passes downward from the bottom of the first fixing plate and the second fixing plate, and the reaction blocks are located on both sides of the tightening shaft.

[0009] Furthermore, lighting lamps are installed at the bottom of the mounting substrate, and the lighting lamps are located on the left and right sides thereof.

[0010] Furthermore, both ends of the connecting plate are provided with hanging rings, and the inner wall of the protective cover is provided with a cooling fan.

[0011] Compared with the prior art, the utility model provides a tightening mechanism for a tightening machine, which has the following

[0012] Beneficial effects:

[0013] 1. The tightening mechanism of the tightening machine adopts a variable pitch design for the double axes. The ball screw linear module drives the fixed plate to make linear displacement, thereby changing the distance between the double axes. After the pitch is changed in place, it is locked and fixed by the guide rail clamp to complete the tightening of fasteners of various specifications and models of products, which greatly improves the level of automated assembly, shortens assembly time, and reduces the equipment change cost of tightening equipment and even production assembly lines.

[0014] 2. The tightening mechanism of the tightening machine has a reaction force part which is positioned and locked by a linear guide rail and a plug-in pin. The plug-in pin is inserted into the sockets at different positions on the reaction force block to adjust the clamping distance between the reaction force blocks, which is conducive to adaptive adjustment according to product specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is an internal schematic diagram of the utility model;

[0017] Figure 3 It is a partial top view of the utility model;

[0018] Figure 4 It is a partial bottom view of the utility model.

[0019] In the figure: 1. mounting base plate; 2. linear guide; 3. reaction block; 4. positioning pin seat; 5. plug-in pin; 6. socket; 7. linear slide rail; 8. rail clamp; 9. first fixing plate; 10. second fixing plate; 11. connecting column; 12. tightening shaft; 13. ball screw type linear module; 14. connecting piece; 15. column; 16. connecting plate; 17. protective cover; 18. handle seat; 19. through port; 20. lighting lamp; 21. lifting ring; 22. cooling fan. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 4 The utility model discloses a tightening mechanism for a tightening machine, including a mounting base 1, linear guides 2 are mounted at the front and rear ends of the bottom of the mounting base 1, and a reaction block 3 is mounted on the linear guide 2, a positioning pin seat 4 is mounted on the linear guide 2, and a plug-in pin 5 is plugged into the positioning pin seat 4, and the reaction block 3 is evenly provided with plug holes 6, and the plug-in pin 5 is plugged into the plug holes 6, and the reaction part is positioned and locked by the linear guide 2 and the plug-in pin 5, and the plug-in pin 5 is plugged into the plug holes 6 at different positions on the reaction block 3 to adjust the clamping distance between the reaction blocks 3, which is conducive to adaptive adjustment according to product specifications, linear guides 7 are mounted on the left and right ends of the bottom of the mounting base 1, and guide clamps 8 are mounted on the two sliders of the linear guide 7, and a first fixed plate 9 and a second fixed plate 10 are respectively mounted on the sliders of the linear guide 7, and the first fixed plate 9 and the second fixed plate 10 are respectively mounted on the sliders of the linear guide 7, and the first fixed plate 9 and the second fixed plate 10 are respectively mounted on the sliders of the linear guide 7. 0 is installed with a connecting column 11, the first fixing plate 9 and the second fixing plate 10 are installed with a tightening shaft 12, the installation base plate 1 is installed with a ball screw type linear module 13, and the two nut seats of the ball screw type linear module 13 are installed with a connecting piece 14, the connecting piece 14 is tightly matched with the connecting column 11, and the double axis is set with a variable pitch design, and the ball screw type linear module 13 drives the fixing plate to make a linear displacement, thereby changing the spacing between the double axes. After the pitch is changed in place, it is locked and fixed by the guide rail clamp 8 to complete the tightening of fasteners of products of various specifications and models, which greatly improves the level of automated assembly, reduces assembly time, and reduces the equipment change cost of tightening equipment and even production assembly lines. Columns 15 are installed around the installation base plate 1, and a connecting plate 16 is installed on the top of the column 15, and a protective cover 17 is installed on the outside of the column 15.

[0022] Specifically, the front end of the mounting substrate 1 extends out of the protective cover 17 , and a handle seat 18 is provided at the front end of the mounting substrate 1 .

[0023] In this embodiment, problems are inevitable when the equipment is working. Using a protective cover 17 to separate the equipment from people can greatly reduce the risk of accidents. The handle seat 18 is used to install a handle, which can facilitate operators to operate the equipment safely and efficiently.

[0024] Specifically, a through opening 19 is opened in the middle of the mounting base plate 1 , and the lower portion of the tightening shaft 12 passes through the through opening 19 to be connected to the first fixing plate 9 and the second fixing plate 10 .

[0025] In this embodiment, the through opening 19 is a position-avoiding structure so as to avoid structural interference when the two axes change pitch.

[0026] Specifically, the lower portion of the tightening shaft 12 passes downward from the bottom of the first fixing plate 9 and the second fixing plate 10 , and the reaction blocks 3 are located on both sides of the tightening shaft 12 .

[0027] In this embodiment, the tightening shaft 12 plays an important role in the process requirements of tightening and loosening various nuts and bolts in the automotive industry such as automobiles, engines, reducers, couplings, pumps, motors, etc. They can provide different torque values ​​and speeds to meet different tightening requirements.

[0028] Specifically, the bottom of the mounting substrate 1 is provided with lighting lamps 20 , and the lighting lamps 20 are located on the left and right sides thereof.

[0029] In this embodiment, the lighting lamp 20 can provide sufficient lighting for equipment operation, allowing the operator to clearly see various details while working.

[0030] Specifically, two ends of the connecting plate 16 are provided with hanging rings 21 , and the inner wall of the protective cover 17 is provided with a cooling fan 22 .

[0031] In this embodiment, the lifting ring 21 is an important lifting tool, which is often used for lifting heavy objects. The cooling fan 22 is used to help the device dissipate the heat generated inside, maintain the normal operating temperature of the device, and improve the performance and life of the device.

[0032] When in use, the dual axes are set up with a variable pitch design, and the ball screw type linear module 13 drives the fixed plate to make linear displacement, thereby changing the spacing between the dual axes. After the pitch is changed in place, it is locked and fixed by the guide clamp 8 (model MCPS45 pneumatic normally closed type) to complete the tightening of fasteners for products of various specifications and models, which greatly improves the level of automated assembly, shortens assembly time, and reduces the equipment change cost of tightening equipment and even production assembly lines. The reaction force part is positioned and locked by the linear guide 2 and the plug pin 5, and the plug pin 5 is inserted into the socket 6 at different positions on the reaction block 3 to adjust the clamping distance between the reaction blocks 3, which is conducive to adaptive adjustment according to product specifications.

[0033] To sum up, the tightening mechanism of the tightening machine is designed with a variable pitch double axis. The ball screw type linear module 13 drives the fixed plate to make linear displacement, thereby changing the spacing between the double axes. After the pitch is changed in place, it is locked and fixed by the guide clamp 8 to complete the tightening of fasteners of products of various specifications and models, which greatly improves the level of automated assembly, shortens the assembly time, and reduces the equipment change cost of the tightening equipment and even the production assembly line; the reaction force part is positioned and locked by the linear guide 2 and the plug pin 5, and the plug pin 5 is inserted into the socket 6 at different positions on the reaction block 3 to realize the adjustment of the clamping distance between the reaction blocks 3, which is conducive to adaptive adjustment according to product specifications.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tightening mechanism for a tightening machine, comprising a mounting base (1), characterized in that: The front and rear ends of the bottom of the mounting substrate (1) are provided with linear guide rails (2), and a reaction block (3) is provided on the linear guide rail (2). A positioning pin seat (4) is provided on the linear guide rail (2), and a plug-in pin (5) is plugged into the positioning pin seat (4). The reaction block (3) is provided with plug holes (6) evenly distributed thereon, and the plug-in pin (5) is plugged into the plug holes (6). The left and right ends of the bottom of the mounting substrate (1) are provided with linear guide rails (7), and two sliders of the linear guide rails (7) are provided with guide rail clamps (8). The sliders of the linear guide rails (7) are provided with a first fixed plate (9) and a second fixed plate (10), respectively. The first fixing plate (9) and the second fixing plate (10) are both provided with connecting columns (11), the first fixing plate (9) and the second fixing plate (10) are both provided with tightening shafts (12), the mounting base plate (1) is provided with a ball screw type linear module (13), and two nut seats of the ball screw type linear module (13) are provided with connecting pieces (14), the connecting pieces (14) are tightly fitted and snap-fitted with the connecting columns (11), columns (15) are provided around the mounting base plate (1), and a connecting plate (16) is provided on the top of the columns (15), and a protective cover (17) is provided on the outer side of the columns (15).

2. A tightening mechanism for a tightening machine according to claim 1, characterized in that: The front end of the mounting substrate (1) extends out of the protective cover (17), and a handle seat (18) is provided at the front end of the mounting substrate (1).

3. A tightening mechanism for a tightening machine according to claim 1, characterized in that: A through opening (19) is provided in the middle of the mounting base plate (1), and the lower part of the tightening shaft (12) passes through the through opening (19) and is connected to the first fixing plate (9) and the second fixing plate (10).

4. A tightening mechanism for a tightening machine according to claim 1, characterized in that: The lower part of the tightening shaft (12) passes downward from the bottom of the first fixing plate (9) and the second fixing plate (10), and the reaction blocks (3) are located on both sides of the tightening shaft (12).

5. The tightening mechanism for a tightening machine according to claim 1, characterized in that: A lighting lamp (20) is installed at the bottom of the installation substrate (1), and the lighting lamp (20) is located on the left and right sides thereof.

6. A tightening mechanism for a tightening machine according to claim 1, characterized in that: Both ends of the connecting plate (16) are provided with hanging rings (21), and the inner wall of the protective cover (17) is provided with a cooling fan (22).

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