Gear shaft positioning and riveting tool

Abstract

The utility model provides a gear shaft positioning riveting tool relates to tool fixture technical field, including bottom plate, top plate, movable plate, the upper end left and right sides of bottom plate is equipped with a set of positioning hole respectively, and is fixedly connected with a set of limit rod respectively in the upper side two sets of positioning hole of bottom plate, and the front and back sides of bottom plate are equipped with two groups of round holes respectively, and the inside of front and back sides round holes of bottom plate is equipped with a set of fixed bolt respectively, and the center end of bottom plate is equipped with round hole, and two sets of thread holes are equipped respectively in the position of the left and right sides of center end round hole of bottom plate close to, the center end movable connection of bottom plate is limited piece A and limited piece B, and the shape of the positioning groove on limited piece A and limited piece B is different, increases the versatility of the utility model, utilizes protective pad two and protective pad three, is favorable to preventing the rigid contact of the inside surface of work piece and limited piece A or limited piece B in the riveting process, protects work piece surface, solves the problem that the adaptive range of existing traditional gear shaft positioning riveting tool is limited.

Description

Technical Field

[0001] This utility model belongs to the field of tooling and fixture technology, and more specifically, it relates to a gear shaft positioning and riveting tooling. Background Technology

[0002] Gear shaft positioning and riveting fixtures are specialized auxiliary equipment used in the field of mechanical manufacturing. Their core function is to precisely position the gear shaft and the part to be riveted, and use a pressure-driven mechanism to achieve the riveting and fixing of the two, ensuring assembly accuracy and connection reliability. They are suitable for gear shaft assembly in the fields of automobiles, mechanical transmission, and precision instruments. However, most commonly used traditional gear shaft positioning and riveting fixtures have a single positioning groove structure, which can only adapt to one type of gear shaft, resulting in poor versatility and limited applicability. Therefore, a new type of gear shaft positioning and riveting fixture is needed. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a gear shaft positioning and riveting fixture to address the limited applicability of existing traditional gear shaft positioning and riveting fixtures.

[0004] The gear shaft positioning and riveting fixture of this utility model is achieved by the following specific technical means: Gear shaft positioning and riveting fixture, including base plate, top plate, and movable plate; The base plate has a set of positioning holes on the left and right sides of its upper end, and a set of limiting rods are fixedly connected inside the two sets of positioning holes on the upper side of the base plate. The base plate has two sets of round holes on the front and rear sides, and a set of fixing bolts are installed inside the round holes on the front and rear sides of the base plate. The base plate has a round hole at its center end, and two sets of threaded holes are provided on the left and right sides of the round hole near the center end of the base plate. The top plate is placed on top of the base plate, and the bottom surface of the top plate is fixedly connected to the top surface of the two sets of limiting rods. The top plate has a square groove, and an electric cylinder is movably connected inside the square groove on the top plate. The movable plate is placed between the base plate and the top plate, and has two sets of limiting holes on the movable plate. The two sets of limiting rods are placed inside the two sets of limiting holes on the movable plate, and a set of springs is fitted on the two sets of limiting rods. A positioning rod is fixedly connected to the lower side of the center end of the movable plate, and a pressure rod is movably connected to the lower end of the positioning rod.

[0005] Furthermore, the center end of the base plate is movably connected to limit member A and limit member B. Limit member A and limit member B are respectively provided with four sets of circular holes, and a set of positioning bolts are respectively installed in the eight sets of circular holes on limit member A and limit member B. The positioning bolts correspond to the four sets of threaded holes of the circular hole at the center end of the base plate.

[0006] Furthermore, the limiting member A is provided with a circular positioning groove, and a second protective pad is provided inside the circular positioning groove on the limiting member A; the upper side of the limiting member B is provided with a polygonal positioning groove, and a third protective pad is provided inside the polygonal positioning groove on the limiting member B.

[0007] Furthermore, the base plate has a connecting pipe inside, with the right side of the connecting pipe extending into the round hole at the center end of the base plate and a nozzle installed on the right side of the connecting pipe. The left side of the connecting pipe extends out of the base plate and a regulating valve is installed on the left side of the connecting pipe. A filter screen is installed inside the round hole at the center end of the base plate.

[0008] Furthermore, the lower end of the pressure rod is a flat plane, and a protective pad is connected to the lower side of the pressure rod.

[0009] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model sets up a base plate, through which limiter A and limiter B are movably connected at the center end of the base plate. The positioning grooves on limiter A and limiter B have different shapes, which is beneficial to adapt to gear shafts of different shapes and increase the versatility of this utility model. The use of protective pads two and three helps to prevent the workpiece from rigidly contacting the inner surface of limiter A or limiter B during the riveting process, thus protecting the surface of the workpiece.

[0010] 2. This utility model features a connecting pipe that extends through the right side into the center hole of the base plate. A nozzle is installed on the right side of the connecting pipe, which is connected to an air pump. After the riveting is completed, the air pump delivers gas to the nozzle to move the riveted workpiece, preventing it from getting stuck and improving the ease of removing it.

[0011] 3. This utility model features a pressure rod with a flat lower end and a protective pad connected to its lower side. The pressure rod is movably connected to the positioning rod, which allows for flexible replacement of the pressure rod as needed. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a cross-sectional structural diagram of the base plate of this utility model.

[0014] Figure 3 This is a schematic diagram of the structure of the movable plate of this utility model.

[0015] Figure 4 This is a schematic diagram of the structure of limiting component A and limiting component B of this utility model.

[0016] Figure 5 This is a cross-sectional structural diagram of the limiting component A of this utility model.

[0017] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Base plate; 2. Top plate; 3. Electric cylinder; 4. Movable plate; 5. Spring; 6. Limiting rod; 7. Pressure rod; 8. Limiting component A; 801. Limiting component B; 9. Connecting pipe; 10. Adjusting valve; 11. Nozzle; 12. Filter screen; 13. Positioning rod; 14. Protective pad one; 15. Protective pad two; 1501. Protective pad three. Detailed Implementation

[0018] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model. Example:

[0019] As attached Figure 1 To be continued Figure 5 As shown: This utility model provides a gear shaft positioning and riveting fixture, including a base plate 1, a top plate 2, and a movable plate 4; The upper left and right sides of the base plate 1 are provided with a set of positioning holes, and a set of limiting rods 6 are fixedly connected inside the two sets of positioning holes on the upper side of the base plate 1. The front and rear sides of the base plate 1 are provided with two sets of round holes, and a set of fixing bolts are provided inside the round holes on the front and rear sides of the base plate 1. The center end of the base plate 1 is provided with a round hole, and two sets of threaded holes are provided on the left and right sides of the round hole near the center end of the base plate 1. The top plate 2 is placed on the upper end of the base plate 1, and the bottom surface of the top plate 2 is fixedly connected to the top surface of the two sets of limiting rods 6. The top plate 2 is provided with a square groove, and an electric cylinder 3 is movably connected inside the square groove on the top plate 2. The movable plate 4 is placed between the base plate 1 and the top plate 2, and the movable plate 4 is provided with two sets of limiting holes. The two sets of limiting rods 6 are respectively placed inside the two sets of limiting holes on the movable plate 4, and a set of springs 5 ​​are respectively fitted on the two sets of limiting rods 6. The lower side of the center end of the movable plate 4 is fixedly connected with a positioning rod 13, and the lower end of the positioning rod 13 is movably connected with a pressure rod 7.

[0020] Among them, such as Figure 2 and Figure 4As shown, the center end of the base plate 1 is movably connected to limiting member A8 and limiting member B801. Limiting member A8 and limiting member B801 are respectively provided with four sets of circular holes, and a set of positioning bolts are respectively installed in the eight sets of circular holes on limiting member A8 and limiting member B801. The positioning bolts correspond to the four sets of threaded holes of the circular hole near the center end of the base plate 1. Limiting member A8 is provided with a circular positioning groove, and a second protective pad 15 is provided inside the circular positioning groove on limiting member A8. Limiting member B801 is provided with a polygonal positioning groove on the upper side, and a third protective pad 1501 is provided inside the polygonal positioning groove on limiting member B801. By using the different shapes of the positioning grooves on limiting member A8 and limiting member B801, it is beneficial to adapt to gear shafts of different shapes, increasing the versatility of this utility model. The use of the second protective pad 15 and the third protective pad 1501 helps to prevent the workpiece from rigidly contacting the inner surface of limiting member A8 or limiting member B801 during the riveting process, thus protecting the surface of the workpiece.

[0021] Among them, such as Figure 2 As shown, the base plate 1 has a connecting pipe 9 inside. The right side of the connecting pipe 9 goes into the round hole at the center end of the base plate 1, and a nozzle 11 is installed on the right side of the connecting pipe 9. The left side of the connecting pipe 9 goes out of the base plate 1, and a regulating valve 10 is installed on the left side of the connecting pipe 9. A filter screen 12 is provided inside the round hole at the center end of the base plate 1. An air pump is connected through the connecting pipe 9. After the riveting is completed, the air pump delivers gas to the nozzle 11 to move the riveted workpiece, avoid workpiece jamming, improve the convenience of workpiece removal, and use the filter screen 12 to prevent dust and iron filings from clogging the nozzle 11.

[0022] Among them, such as Figure 3 As shown, the lower end of the pressure rod 7 is a flat plane, and a protective pad 14 is connected to the lower side of the pressure rod 7. The flat plane at the lower end of the pressure rod 7 forms a surface contact with the part of the workpiece to be pressed, which can evenly distribute the output pressure to the entire contact area of ​​the workpiece, avoid local stress concentration caused by point contact or line contact, and prevent uneven deformation of the workpiece.

[0023] The specific usage and function of this embodiment are as follows: like Figures 1 to 5As shown, in this utility model, the different shapes of the positioning grooves on the limiting member A8 and the limiting member B801 facilitate the adaptation to gear shafts of different shapes, increasing the versatility of this utility model. The use of protective pad 2 15 and protective pad 3 1501 helps to prevent the workpiece from rigidly contacting the inner surface of the limiting member A8 or the limiting member B801 during the riveting process, protecting the surface of the workpiece. The air pump is connected through the connecting pipe 9. After the riveting is completed, the air pump delivers gas to the nozzle 11 to move the riveted workpiece, preventing the workpiece from getting stuck and improving the convenience of removing the workpiece. The filter screen 12 prevents dust and iron filings from clogging the nozzle 11. The flat plane at the lower end of the pressure rod 7 forms a surface contact with the part of the workpiece to be pressed, which can evenly distribute the output pressure to the entire contact area of ​​the workpiece, avoiding local stress concentration caused by point contact or line contact and preventing uneven deformation of the workpiece.

[0024] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

Claims

1. A gear shaft positioning and riveting fixture, characterized in that: It includes a base plate (1), a top plate (2), and a movable plate (4); The base plate (1) has a set of positioning holes on the upper left and right sides respectively, and a set of limiting rods (6) are fixedly connected inside the two sets of positioning holes on the upper side of the base plate (1). The base plate (1) has two sets of round holes on the front and rear sides respectively, and a set of fixing bolts are installed inside the round holes on the front and rear sides respectively. The base plate (1) has a round hole at the center end, and two sets of threaded holes are installed on the left and right sides of the round hole near the center end of the base plate (1). The top plate (2) is placed on the upper end of the base plate (1), and the bottom surface of the top plate (2) is flush with the two sets of limiting rods (6). The top surface is fixedly connected, and a square groove is provided on the top plate (2). An electric cylinder (3) is movably connected inside the square groove on the top plate (2). The movable plate (4) is placed between the bottom plate (1) and the top plate (2). Two sets of limiting holes are provided on the movable plate (4). Two sets of limiting rods (6) are respectively placed inside the limiting holes on the two sets of movable plates (4). A set of springs (5) is respectively fitted on the two sets of limiting rods (6). A positioning rod (13) is fixedly connected to the lower side of the center end of the movable plate (4). A pressure rod (7) is movably connected to the lower end of the positioning rod (13).

2. The gear shaft positioning and riveting fixture as described in claim 1, characterized in that: The center end of the base plate (1) is movably connected to the limiting member A (8) and the limiting member B (801). The limiting member A (8) and the limiting member B (801) are respectively provided with four sets of round holes, and a set of positioning bolts are respectively installed in the eight sets of round holes on the limiting member A (8) and the limiting member B (801). The positioning bolts correspond to the four sets of threaded holes of the round hole at the center end of the base plate (1).

3. The gear shaft positioning and riveting fixture as described in claim 2, characterized in that: The limiting member A (8) is provided with a circular positioning groove, and a second protective pad (15) is provided inside the circular positioning groove on the limiting member A (8). The upper side of the limiting member B (801) is provided with a polygonal positioning groove, and a third protective pad (1501) is provided inside the polygonal positioning groove on the limiting member B (801).

4. The gear shaft positioning and riveting fixture as described in claim 1, characterized in that: The base plate (1) is provided with a connecting pipe (9) inside. The right side of the connecting pipe (9) goes into the round hole at the center end of the base plate (1), and a nozzle (11) is installed on the right side of the connecting pipe (9). The left side of the connecting pipe (9) goes out of the base plate (1), and a regulating valve (10) is installed on the left side of the connecting pipe (9). A filter screen (12) is provided inside the round hole at the center end of the base plate (1).

5. The gear shaft positioning and riveting fixture as described in claim 1, characterized in that: The lower end of the pressure rod (7) is a flat plane, and a protective pad (14) is connected to the lower side of the pressure rod (7).

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