Angle-settable rotary positioning device and riveting machine thereof

Abstract

The utility model provides a rotary positioning device capable of setting an angle and a riveting machine with the rotary positioning device capable of setting the angle, and relates to the technical field of product positioning structures. Comprising a placing platform suitable for placing a workpiece with a center positioning hole and a rotating positioning hole in the bottom, and further comprises a pressing follow-up assembly, a positioning rotating assembly and a servo motor assembly, and the pressing follow-up assembly is suitable for pressing the workpiece placed on the placing platform; the positioning rotating assembly comprises a rotating shaft, a positioning elastic pressing rod assembly and a center positioning rod, the positioning elastic pressing rod assembly and the center positioning rod are arranged on the rotating shaft, the center positioning rod is suitable for being clamped into a center positioning hole of the workpiece, and the positioning elastic pressing rod assembly is suitable for being inserted into the rotating positioning hole; and the servo motor assembly is connected with the rotating shaft. According to the scheme of the utility model, the cylindrical workpiece can be rotated to a required angle without identifying an incoming material angle of the workpiece.

Description

Technical Field

[0001] The utility model relates to the technical field of product positioning structures, in particular to a rotary positioning device capable of setting an angle and a riveting machine with the rotary positioning device capable of setting an angle. Background Art

[0002] In the assembly of cylinders, since the direction of the incoming angle of the cylinder is random, it is impossible to determine the assembly position after fixing to ensure that the assembly position of each cylindrical workpiece is the same, especially when there are positioning features of different sizes at the bottom of the workpiece, it is even more difficult to determine the incoming angle of the workpiece. Although it is currently possible to design an increase in the image detection recognition angle, the image recognition cost is high and requires a large space. Utility Model Content

[0003] In view of this, an object of the present invention is to provide a rotation positioning device with a settable angle, so as to solve the problem that a cylindrical workpiece is difficult to position during rotation.

[0004] The utility model adopts the following scheme: the application provides a rotation positioning device with adjustable angle, which is arranged on a frame, and includes a placement platform suitable for placing a workpiece with a center positioning hole and a rotation positioning hole at the bottom, and also includes a clamping follower assembly, a positioning rotation assembly and a servo motor assembly, wherein the clamping follower assembly is suitable for clamping the workpiece placed on the placement platform, the positioning rotation assembly includes a rotating shaft and a positioning spring rod assembly and a center positioning rod arranged on the rotating shaft, the center positioning rod is suitable for being inserted into the center positioning hole of the workpiece, and the positioning spring rod assembly is suitable for being inserted into the rotation positioning hole so that when the rotating shaft rotates, the rotation angle can be determined by referring to the position of the rotation positioning hole of the workpiece; the servo motor assembly is connected to the rotating shaft to drive the rotating shaft to rotate.

[0005] Furthermore, the positioning spring rod assembly is elastically arranged on the rotating shaft.

[0006] Furthermore, the positioning spring rod assembly includes a positioning spring rod and a spring, and the spring is arranged between the positioning spring rod and the rotating shaft so that the positioning spring rod has an upward and downward elastic stroke.

[0007] Furthermore, the clamping follower assembly includes a clamping block, a connecting block and a clamping cylinder, wherein the clamping block is arranged at one end of the connecting block, and the other end of the connecting block is connected to the clamping cylinder, and the clamping cylinder is configured to drive the connecting block to move up and down to drive the clamping block to press the workpiece onto the placement platform.

[0008] Furthermore, a follower bearing is connected between the connecting block and the pressing block, so that the pressing block can rotate along with the workpiece.

[0009] Furthermore, the rotating shaft includes an origin switch for resetting the servo motor assembly.

[0010] Furthermore, the pressing cylinder is provided with a pressure regulating valve to control the pressing force of the pressing block on the workpiece.

[0011] Furthermore, the servo motor assembly includes a servo motor, and the servo motor is connected to the rotating shaft via a coupling.

[0012] Furthermore, the frame includes two sets of symmetrical rotation positioning devices.

[0013] The utility model also provides a riveting machine with a rotation positioning device capable of setting an angle, comprising any one of the rotation positioning devices capable of setting an angle described above.

[0014] Beneficial effects:

[0015] The solution of the utility model is to insert a positioning spring pressure rod assembly into the rotation positioning hole of the workpiece so that when the rotating shaft rotates, the required rotation angle can be determined by referring to the position of the rotation positioning hole of the workpiece, thereby rotating the product to a specified angle without detecting and identifying the initial angle of the product when it is placed on the platform. In addition, a clamping follower group is provided, and the design adopts a method of connecting the pressure block with the bearing, so that when the workpiece rotates, the pressure block can rotate together to avoid friction between the pressure block and the workpiece. Furthermore, a pressure regulating valve is designed on the clamping cylinder to adjust the pressure of the product pressure block, which can effectively control the output pressure of the swing pressure cylinder to prevent the product from being subjected to too much pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a rotation positioning device capable of setting an angle according to an embodiment of the utility model;

[0017] Figure 2 This is a front view structural schematic diagram of a rotation positioning device capable of setting an angle according to an embodiment of the utility model;

[0018] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure of AA in FIG.

[0019] Figure 4 This is a schematic diagram of a top view of a rotation positioning device capable of setting an angle according to an embodiment of the utility model;

[0020] Figure 5 It is a bottom schematic diagram of a workpiece of a rotary positioning device capable of setting an angle according to an embodiment of the utility model;

[0021] Figure numerals: frame 1, motor mounting plate 11, placement platform 12, clamping follower assembly 2, pressure block 21, connecting block 22, clamping cylinder 23, pressure regulating valve 24, follower bearing 25, positioning rotation assembly 3, rotating shaft 31, positioning spring pressure rod assembly 32, positioning spring pressure rod 321, spring 322, center positioning rod 33, servo motor 4, coupling 5, origin switch 6, workpiece 7, center positioning hole 71, rotation positioning hole 72. DETAILED DESCRIPTION

[0022] Combination Figures 1 to 5 As shown, this embodiment provides a riveting machine with a rotation positioning device with adjustable angle, including a rotation positioning device with adjustable angle. The rotation positioning device with adjustable angle is arranged on a frame 1, and includes a placement platform 12 suitable for placing a workpiece 7 with a center positioning hole 71 and a rotation positioning hole 72 at the bottom, and also includes a clamping follower assembly 2, a positioning rotation assembly 3 and a servo motor assembly, wherein the clamping follower assembly 2 is suitable for clamping the workpiece 7 placed on the placement platform 12, the positioning rotation assembly 3 includes a rotation shaft 31 and a positioning spring rod assembly 32 and a center positioning rod 33 arranged on the rotation shaft 31, the center positioning rod 33 is suitable for being inserted into the center positioning hole 71 of the workpiece 7, and the positioning spring rod assembly 32 is suitable for being inserted into the rotation positioning hole 72 so that when the rotation shaft 31 rotates, the rotation angle can be determined by referring to the position of the rotation positioning hole 72 of the workpiece 7; the servo motor assembly is connected to the rotation shaft 31 to drive the rotation shaft 31 to rotate.

[0023] In this embodiment, the frame 1 includes at least two symmetrically arranged rotational positioning devices with adjustable angles, so as to improve work efficiency. The rotational positioning device with adjustable angles is used to press the cylindrical workpiece 7 and can drive the cylindrical workpiece 7 to rotate to a desired angle to assemble the cylindrical workpiece 7. The focus of this application is on the rotational positioning of the workpiece 7, and its structure and parts are not described here. A center positioning hole 71 is provided at the midpoint of the bottom of the cylindrical workpiece 7 in this embodiment, and a rotational positioning hole 72 is also provided on the bottom surface of the workpiece 7, which is spaced apart from the positioning hole.

[0024] Combination Figures 1 to 3As shown, the angle-adjustable rotation positioning device in this embodiment includes a frame 1, the frame 1 includes a motor mounting plate 11, the servo motor assembly is arranged on the motor mounting plate 11, the servo motor assembly includes a servo motor 4, the output shaft of the servo motor 4 is designed to face upward, and a coupling 5 is arranged on the output shaft for connecting with the rotating shaft 31, and the servo motor 4 can freely set the rotation angle. The placement platform 12 is arranged above the motor mounting plate 11 through a support frame, and the placement platform 12 includes at least two placement stations suitable for placing the workpiece 7, the placement station is provided with a rotating shaft 31, and the top of the rotating shaft 31 is provided with a positioning spring rod assembly 32 and a center positioning rod 33. When the workpiece 7 is placed on the placement station, the intermediate positioning rod cooperates with the center positioning hole 71, and the positioning spring rod 321 of the positioning spring rod assembly 32 is suitable for inserting into the rotating positioning hole 72 to drive the workpiece 7 to rotate. By cooperating the positioning spring rod assembly 32 with the rotation positioning hole 72 of the workpiece, the rotation positioning hole 72 can be used as a reference for the workpiece, and the rotation axis 31 can be rotated to a specified angle under the reference.

[0025] Combination Figures 1 to 3 As shown, in this embodiment, the positioning spring rod assembly 32 is elastically arranged on the rotating shaft 31. Specifically, the positioning spring rod assembly 32 includes a positioning spring rod 321 and a spring 322. The spring 322 is arranged between the positioning spring rod 321 and the rotating shaft 31 so that the positioning spring rod 321 has an elastic stroke up and down. Here, a mounting hole for mounting the positioning spring rod 321 and the spring 322 is arranged on the rotating shaft 31. The positioning spring rod 321 of the positioning spring rod assembly 32 has a certain up and down stroke on the rotating shaft 31 and can be completely sunk into the mounting hole of the rotating shaft 31. When the workpiece 7 is placed above the rotating shaft 31, if the positioning spring rod 321 is not just inserted into the rotating positioning hole 72, the positioning spring rod 321 will be pressed into the mounting hole of the rotating shaft 31, and the pressure block 21 follower assembly will be pressed tightly onto the workpiece 7. When the rotating shaft 31 continues to rotate relative to the workpiece 7, when the positioning spring rod 321 rotates to the position of the rotating positioning hole 72, the positioning spring rod 321 automatically pops into the rotating positioning hole 72 and drives the product to continue to rotate to a specified angle.

[0026] Continue to combine Figures 1 to 4As shown, in this embodiment, the pressing follower assembly 2 includes a pressing block 21, a connecting block 22 and a pressing cylinder 23, wherein the pressing block 21 is arranged at one end of the connecting block 22, and the other end of the connecting block 22 is connected to the pressing cylinder 23, and the pressing cylinder 23 is configured to drive the connecting block 22 to move up and down to drive the pressing block 21 to press the workpiece 7 on the placing platform 12. A follower bearing 25 is connected between the connecting block 22 and the pressing block 21, so that the pressing block 21 can rotate with the workpiece 7, so that when the workpiece 7 rotates, the pressing block 21 rotates together, thereby avoiding mutual friction between the pressing block 21 and the workpiece 7. Here, the pressing cylinder 23 is provided with a pressure regulating valve 24 to control the pressing force of the pressing block 21 on the workpiece 7, and by effectively controlling the output pressure of the pressing cylinder 23, the workpiece 7 is prevented from being subjected to too much pressure.

[0027] Combination Figure 3 As shown, in a preferred embodiment, the rotating shaft 31 includes an origin switch 6 for resetting the servo motor assembly. The origin switch 6 can facilitate motor resetting. The origin switch 6 here is a photoelectric origin switch 6, etc. Its working principle is the existing technology and will not be repeated here.

[0028] Through the embodiment of the utility model, the spring-loaded positioning rod will only be pushed out when it is rotated to the position of the rotation positioning hole 72, fix the product, and then rotate with the product. The device can rotate the workpiece 7 to the specified angle without detecting and identifying the initial angle of the workpiece 7 when it is placed on the placement platform 12. The design of the clamping follower assembly 2 adopts the method of connecting the pressure block 21 with the bearing, so that when the product rotates, the pressure block 21 can rotate together to avoid mutual friction between the pressure block 21 and the product. After the spring-loaded positioning rod is pushed into the rotation positioning hole 72 of the workpiece 7, the servo motor 4 continues to rotate to drive the workpiece 7 to rotate to the desired angle. In addition, a pressure regulating valve 24 is designed to adjust the pressure of the pressure block 21. The servo motor 4 is used as a drive, and the rotation angle can be freely set.

[0029] It should be understood that the above are only preferred implementations of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions under the concept of the present utility model belong to the protection scope of the present utility model.

[0030] The above description of the drawings used in the implementation manner only shows certain embodiments of the utility model and should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

Claims

1. A rotation positioning device with adjustable angle, which is arranged on a frame and comprises a placement platform suitable for placing a workpiece with a central positioning hole and a rotation positioning hole at the bottom, characterized in that: It also includes a clamping follower assembly, a positioning rotation assembly and a servo motor assembly, wherein the clamping follower assembly is suitable for clamping the workpiece placed on the placing platform, the positioning rotation assembly includes a rotating shaft and a positioning spring rod assembly and a center positioning rod arranged on the rotating shaft, the center positioning rod is suitable for being inserted into the center positioning hole of the workpiece, and the positioning spring rod assembly is suitable for being inserted into the rotating positioning hole so that the rotation angle can be determined by referring to the position of the rotating positioning hole of the workpiece when the rotating shaft rotates; the servo motor assembly is connected to the rotating shaft to drive the rotating shaft to rotate.

2. The angle-adjustable rotation positioning device according to claim 1, characterized in that: The positioning spring rod assembly is elastically arranged on the rotating shaft.

3. The angle-adjustable rotation positioning device according to claim 1, characterized in that: The positioning spring rod assembly comprises a positioning spring rod and a spring, wherein the spring is arranged between the positioning spring rod and the rotating shaft so that the positioning spring rod has an upward and downward elastic stroke.

4. The angle-adjustable rotation positioning device according to claim 1, characterized in that: The clamping follower assembly includes a clamping block, a connecting block and a clamping cylinder, wherein the clamping block is arranged at one end of the connecting block, and the other end of the connecting block is connected to the clamping cylinder, and the clamping cylinder is configured to drive the connecting block to move up and down to drive the clamping block to clamp the workpiece on the placement platform.

5. The angle-adjustable rotation positioning device according to claim 4, characterized in that: A follower bearing is connected between the connecting block and the pressing block, so that the pressing block can rotate along with the workpiece.

6. The angle-adjustable rotation positioning device according to claim 1, characterized in that: The rotating shaft includes an origin switch for resetting the servo motor assembly.

7. The angle-adjustable rotation positioning device according to claim 4, characterized in that: The pressing cylinder is provided with a pressure regulating valve to control the pressing force of the pressing block on the workpiece.

8. The angle-adjustable rotation positioning device according to claim 1, characterized in that: The servo motor assembly comprises a servo motor, and the servo motor is connected to the rotating shaft via a coupling.

9. The angle-adjustable rotation positioning device according to claim 1, characterized in that: The frame includes two groups of symmetrical rotation positioning devices.

10. A riveting machine with a rotary positioning device capable of setting an angle, characterized in that: It comprises a rotation positioning device with adjustable angle according to any one of claims 1-9.

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