A bolt alignment device

Abstract

The invention discloses a bolt alignment device, comprising an alignment component, wherein the fixed end of the alignment component is fixedly arranged on a mounting seat, a wrench is fixedly arranged on an output end of the alignment component, one end of a reset component is connected to the mounting seat, and the other end of the reset component is connected to the output end of the alignment component; the alignment component comprises a floating adjustment component, the wrench is fixedly arranged on a mounting plate, the mounting plate is connected to the reset component, the mounting plate is connected to a height adjustment component, the height adjustment component is connected to a sliding plate, a connecting shaft is fixed on the sliding plate and fixedly connected to a fixed plate, a floating adjustment component is arranged between the fixed plate and the connecting plate, a floating adjustment component is arranged between the connecting plate and the sliding plate, and the connecting plate is fixedly arranged on the mounting seat; in the device, the wrench is automatically aligned by the alignment component, so that the bolt notch on the wrench is accurately positioned with the bolt to be tightened, thereby facilitating the wrench to tighten the bolt.

Description

Technical Field

[0001] The invention relates to the technical field of alignment equipment, and in particular to an alignment device for bolts. Background Art

[0002] With the development of science and technology, the assembly process of automobiles has also achieved automated production. In the assembly process, most modules are connected by bolts. On the production line, due to the high precision of the robot's repeated motion, the wrench can be accurately placed in the theoretical position every time. However, due to the manufacturing precision of the body itself and the positioning precision of the body, the position of the same bolt on each body is different, causing the wrench on the robot to be unable to be accurately placed on the bolt, thus failing to complete the bolt tightening and assembly operation. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a bolt alignment device.

[0004] The objective of the present invention is achieved through the following technical solutions:

[0005] A bolt alignment device comprises a wrench, a mounting seat, a reset assembly and an alignment assembly, wherein the fixed end of the alignment assembly is fixedly arranged on the mounting seat, the wrench is fixedly arranged on the output end of the alignment assembly, one end of the reset assembly is connected to the mounting seat, and the other end of the reset assembly is connected to the output end of the alignment assembly;

[0006] The alignment assembly comprises a connecting plate, a sliding plate, a mounting plate, a connecting shaft, a fixed plate, a floating adjustment component and a height adjustment component, the wrench is fixedly arranged on the mounting plate, the mounting plate is connected to the reset assembly, the mounting plate is connected to one end of the height adjustment component, the other end of the height adjustment component is connected to the sliding plate, one end of the connecting shaft is fixed to the sliding plate, the other end of the connecting shaft passes through the disturbance hole on the connecting plate and is fixedly connected to the fixed plate, the inner wall of the disturbance hole and the outer wall of the connecting shaft are clearance-matched, the floating adjustment component is arranged between the fixed plate and the connecting plate, the floating adjustment component is arranged between the connecting plate and the sliding plate, and the connecting plate is fixedly arranged on the mounting seat;

[0007] The floating adjustment component includes a first force ring, a second force ring, a limiting ring and a rolling ball. The limiting ring is provided with at least three ball holes at equal intervals. The rolling ball is arranged in the ball holes and cooperates with the ball holes. The limiting ring is arranged between the first force ring and the second force ring. The first force ring is provided with a rolling groove. One side of the rolling ball contacts the rolling groove, and the other side of the rolling ball contacts the plane of the second force ring. The first force ring, the second force ring and the limiting ring are all provided with floating holes. The floating holes are clearance-fitted with the connecting shaft. The upper and lower sides of the connecting plate are fixedly connected to the second force ring. The fixed plate and the sliding plate are respectively fixedly connected to the two first force rings.

[0008] Furthermore, the height adjustment component includes a guide rod, a limit block and a compression spring, one end of the guide rod is fixedly set on the sliding plate, the other end of the guide rod passes through a guide hole set on the mounting plate and is fixedly connected to the limit block, the compression spring is sleeved on the guide rod, one end of the compression spring is in contact with the sliding plate, and the other end of the compression spring is in contact with the mounting plate.

[0009] Furthermore, a positioning component is arranged between the connecting plate and the sliding plate, and the positioning component includes a positioning sleeve, a positioning spring, a positioning rod and a positioning block. The positioning sleeve is fixedly arranged on the connecting plate, and one end of the positioning sleeve is provided with the freely retractable positioning rod, and the end of the positioning rod is provided with a spherical end head. The positioning block is provided with a positioning groove that cooperates with the spherical end head. The positioning block is fixedly arranged on the sliding plate, and one end of the positioning spring is connected to the end of the positioning rod, and the other end of the positioning spring is connected to the bottom of the positioning sleeve.

[0010] Furthermore, the reset assembly includes a first reset connecting rod, a second reset connecting rod and a reset spring, one end of the first reset connecting rod is fixedly connected to the mounting seat, one end of the second reset connecting rod is fixedly connected to the mounting plate, and the other end of the first reset connecting rod is connected to the other end of the second reset connecting rod through the reset spring.

[0011] Furthermore, four groups of the height adjustment components are arranged between the sliding plate and the mounting plate, and all the guide rods are parallel to each other, and the four guide rods are arranged in a square shape.

[0012] Furthermore, three groups of connecting shafts are arranged between the connecting plate and the sliding plate, and all the connecting shafts are parallel to each other.

[0013] Furthermore, the axis center line of the guide rod and the axis center line of the connecting shaft are parallel to each other.

[0014] Furthermore, first annular grooves are provided on both upper and lower sides of the connecting plate, the first annular grooves are coaxially arranged with the disturbance hole, and the two second force-bearing rings are respectively arranged in the two first annular grooves.

[0015] Furthermore, a second annular groove is arranged on the sliding plate, the second annular groove is arranged coaxially with the connecting shaft, and the first force ring is arranged in the second annular groove.

[0016] Furthermore, a convex ring is coaxially fixedly provided on the fixed disk, and the first force-bearing ring is sleeved on the convex ring.

[0017] The beneficial effects of the present invention are:

[0018] 1) In the present device, the wrench is automatically aligned through the alignment assembly, so that the bolt notch on the wrench is accurately positioned with the bolt to be tightened, thereby facilitating the wrench to tighten the bolt.

[0019] 2) In this device, a floating adjustment component is provided to enable the connecting plate and the sliding plate to move in any direction on the horizontal plane, and also to enable the connecting plate and the sliding plate to rotate relative to each other.

[0020] 3) In this device, a positioning component is provided so that the device can be quickly reset to an initial state after completing the installation of a bolt, and then the alignment work of the next bolt can be quickly realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structural diagram of the device;

[0022] Figure 2 A three-dimensional structural diagram for aligning components;

[0023] Figure 3 A cross-sectional structural diagram for aligning components;

[0024] Figure 4 It is a cross-sectional structural diagram of a height adjustment component;

[0025] Figure 5 It is a three-dimensional structural diagram of the floating adjustment component;

[0026] In the figure, 1-wrench, 2-mounting seat, 3-connecting plate, 4-sliding plate, 5-mounting plate, 6-connecting shaft, 7-fixed plate, 8-disturbance hole, 9-first force ring, 10-second force ring, 11-limiting ring, 12-rolling ball, 13-rolling groove, 14-guide rod, 15-limiting block, 16-compression spring, 17-guide hole, 18-positioning sleeve, 19-positioning spring, 20-positioning rod, 21-positioning block, 22-positioning groove, 23-first reset connecting rod, 24-second reset connecting rod, 25-reset spring, 26-first annular groove, 27-second annular groove, 28-convex ring. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 5 , the present invention provides a technical solution:

[0029] A bolt alignment device includes a wrench 1, a mounting seat 2, a reset assembly and an alignment assembly. The fixed end of the alignment assembly is fixedly arranged on the mounting seat 2, the wrench 1 is fixedly arranged on the output end of the alignment assembly, one end of the reset assembly is connected to the mounting seat 2, and the other end of the reset assembly is connected to the output end of the alignment assembly. The mounting seat 2 is installed on a robot of a production line, the wrench 1 is a prior art, the wrench 1 is mainly used to find the bolt and tighten the bolt, the alignment assembly is used to make the bolt notch on the wrench 1 adaptively find the position of the bolt when the robot controls the mounting seat 2 to move, the alignment assembly causes the position of the wrench 1 to shift after the alignment assembly works, and the reset assembly can return the wrench 1 to its original position again.

[0030] The alignment assembly includes a connecting plate 3, a sliding plate 4, a mounting plate 5, a connecting shaft 6, a fixed plate 7, a floating adjustment component and a height adjustment component. The wrench 1 is fixedly arranged on the mounting plate 5, the mounting plate 5 is connected to the reset assembly, the mounting plate 5 is connected to one end of the height adjustment component, the other end of the height adjustment component is connected to the sliding plate 4, one end of the connecting shaft 6 is fixed on the sliding plate 4, the other end of the connecting shaft 6 passes through the disturbance hole 8 on the connecting plate 3 and is fixedly connected to the fixed plate 7, the inner wall of the disturbance hole 8 and the outer wall of the connecting shaft 6 are clearance-matched, a floating adjustment component is arranged between the fixed plate 7 and the connecting plate 3, a floating adjustment component is arranged between the connecting plate 3 and the sliding plate 4, and the connecting plate 3 is fixedly arranged on the mounting seat 2. Four groups of height adjustment components are arranged between the sliding plate 4 and the mounting plate 5, and all the guide rods 14 are parallel to each other, and the four guide rods 14 are arranged in a square shape. Three groups of connecting shafts 6 are arranged between the connecting plate 3 and the sliding plate 4, and all the connecting shafts 6 are parallel to each other. Among them, in the initial state, the connecting plate 3, the sliding plate 4 and the mounting plate 5 are parallel to each other. The upper side of the connecting plate 3 contacts the fixed plate 7 through the floating adjustment component, and the lower side of the connecting plate 3 contacts the sliding plate 4 through the floating adjustment component, and then is fixedly connected through the connecting shaft 6. The floating adjustment component enables the connecting plate 3 and the sliding plate 4 to slide displacedly. During the sliding process, the connecting shaft 6 and the disturbance hole 8 are not in contact. Three groups of connecting shafts 6 are set to keep the connecting plate 3 and the sliding plate 4 in a parallel state. Four groups of height adjustment components are set between the sliding plate 4 and the mounting plate 5, so that the wrench 1 can move in a balanced manner and prevent the position between the sliding plate 4 and the mounting plate 5 from rotating. The wrench 1 is fixedly mounted on the mounting plate 5, and the mounting plate 5 can slide on the guide rod 14.

[0031] The floating adjustment component includes a first force ring 9, a second force ring 10, a stop ring 11 and a rolling ball 12. The stop ring 11 is provided with at least three ball holes at equal intervals. The rolling ball 12 is arranged in the ball holes and matched with the ball holes. The stop ring 11 is arranged between the first force ring 9 and the second force ring 10. The first force ring 9 is provided with a rolling groove 13. One side of the rolling ball 12 contacts the rolling groove 13, and the other side of the rolling ball 12 contacts the plane of the second force ring 10. The first force ring 9, the second force ring 10 and the stop ring 11 are all provided with floating holes. The floating holes are clearance-matched with the connecting shaft 6. The upper and lower sides of the connecting plate 3 are fixedly connected with the second force ring 10. The fixed plate 7 and the sliding plate 4 are respectively fixedly connected with the two first force rings 9. The upper and lower sides of the connecting plate 3 are provided with first annular grooves 26. The first annular grooves 26 are coaxially arranged with the disturbance hole 8. The two second force rings 10 are respectively arranged in the two first annular grooves 26. The sliding plate 4 is provided with a second annular groove 27, which is coaxially arranged with the connecting shaft 6, and the first force ring 9 is arranged in the second annular groove 27. A convex ring 28 is coaxially fixedly arranged on the fixed plate 7, and the first force ring 9 is sleeved on the convex ring 28. Among them, the function of the limit ring 11 is to limit the rolling ball 12 from breaking away from the limit ring 11 and rolling. The first force ring 9 and the second force ring 10 are respectively arranged on both sides of the rolling ball 12 and contact each other, and the rolling ball 12 will not break away from the rolling groove 13. The rolling ball 12 can roll in any direction on the second force ring 10. The two second force rings 10 are arranged in the first annular grooves 26 on the upper and lower sides of the connecting plate 3, and one first force ring 9 is fixedly connected to the fixed plate 7, and the other first force ring 9 is fixedly connected to the sliding plate 4, so that the connecting plate 3 and the sliding plate 4 can slide relative to each other, and can also rotate relative to each other, so that the wrench 1 can better cooperate with the bolt.

[0032] In some embodiments, the height adjustment component includes a guide rod 14, a stopper 15 and a compression spring 16. One end of the guide rod 14 is fixedly arranged on the sliding plate 4, and the other end of the guide rod 14 passes through a guide hole 17 arranged on the mounting plate 5 and is fixedly connected to the stopper 15. The compression spring 16 is sleeved on the guide rod 14, and one end of the compression spring 16 contacts the sliding plate 4, and the other end of the compression spring 16 contacts the mounting plate 5. The axis of the guide rod 14 is parallel to the axis of the connecting shaft 6. The mounting plate 5 can move along the guide rod 14. After the mounting plate 5 moves, the compression spring 16 is used to reset it. In the initial state, the compression spring 16 is in a compressed state. The function of the stopper 15 is to prevent the mounting plate 5 from detaching from the end of the guide rod 14.

[0033] In some embodiments, a positioning component is arranged between the connecting plate 3 and the sliding plate 4, and the positioning component includes a positioning sleeve 18, a positioning spring 19, a positioning rod 20 and a positioning block 21. The positioning sleeve 18 is fixedly arranged on the connecting plate 3, and a freely retractable positioning rod 20 is arranged at one end of the positioning sleeve 18, and a spherical end is arranged at the end of the positioning rod 20. A positioning groove 22 cooperating with the spherical end is arranged on the positioning block 21, and the positioning block 21 is fixedly arranged on the sliding plate 4. One end of the positioning spring 19 is connected to the end of the positioning rod 20, and the other end of the positioning spring 19 is connected to the bottom of the positioning sleeve 18. Among them, two groups of positioning components are arranged between the connecting plate 3 and the sliding plate 4. The function of the positioning components is to enable the connecting plate 3 and the sliding plate 4 to return to the initial state. The positioning sleeve 18 and the positioning block 21 are both fixed. Under the action of the positioning spring 19, the positioning rod 20 is always in an extended state. The spherical end of the positioning rod 20 acts in the positioning groove 22. The cross-section of the positioning groove 22 is V-shaped, and the bottom of the positioning groove 22 is arc-shaped. The spherical end on the positioning rod 20 can slide in the positioning groove 22.

[0034] In some embodiments, the reset assembly includes a first reset connecting rod 23, a second reset connecting rod 24 and a reset spring 25, one end of the first reset connecting rod 23 is fixedly connected to the mounting seat 2, one end of the second reset connecting rod 24 is fixedly connected to the mounting plate 5, and the other end of the first reset connecting rod 23 is connected to the other end of the second reset connecting rod 24 through a reset spring 25. Under the joint action of the first reset connecting rod 23, the second reset connecting rod 24 and the reset spring 25, the wrench 1 needs to be reset once after each bolt is installed, that is, the wrench 1 returns to the initial state.

[0035] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0037] The above is only a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art shall not deviate from the spirit and scope of the present invention, and shall be within the scope of protection of the claims attached to the present invention.

Claims

1. A bolt alignment device, characterized in that: It comprises a wrench (1), a mounting seat (2), a reset component and an alignment component, wherein the fixed end of the alignment component is fixedly arranged on the mounting seat (2), the wrench (1) is fixedly arranged on the output end of the alignment component, one end of the reset component is connected to the mounting seat (2), and the other end of the reset component is connected to the output end of the alignment component; The alignment component comprises a connecting plate (3), a sliding plate (4), a mounting plate (5), a connecting shaft (6), a fixed plate (7), a floating adjustment component and a height adjustment component. The wrench (1) is fixedly arranged on the mounting plate (5), the mounting plate (5) is connected to the reset component, the mounting plate (5) is connected to one end of the height adjustment component, the other end of the height adjustment component is connected to the sliding plate (4), one end of the connecting shaft (6) is fixed to the sliding plate (4), the other end of the connecting shaft (6) passes through a disturbance hole (8) on the connecting plate (3) and is fixedly connected to the fixed plate (7), the inner wall of the disturbance hole (8) and the outer wall of the connecting shaft (6) are clearance-matched, the floating adjustment component is arranged between the fixed plate (7) and the connecting plate (3), the floating adjustment component is arranged between the connecting plate (3) and the sliding plate (4), and the connecting plate (3) is fixedly arranged on the mounting seat (2); The floating adjustment component comprises a first force-bearing ring (9), a second force-bearing ring (10), a limiting ring (11) and a rolling ball (12); the limiting ring (11) is provided with at least three ball holes at equal intervals; the rolling ball (12) is arranged in the ball holes and cooperates with the ball holes; the limiting ring (11) is arranged between the first force-bearing ring (9) and the second force-bearing ring (10); the first force-bearing ring (9) is provided with a rolling groove (13); one side of the rolling ball (12) is in contact with the first force-bearing ring (9); and the second force-bearing ring (10) is provided with a rolling groove (13). The first force ring (9), the second force ring (10) and the limiting ring (11) are all provided with floating holes, and the floating holes are clearance-matched with the connecting shaft (6). The upper and lower sides of the connecting plate (3) are fixedly connected to the second force ring (10), and the fixed plate (7) and the sliding plate (4) are respectively fixedly connected to the two first force rings (9); The connecting plate (3) is provided with a first annular groove (26) on both upper and lower sides, the first annular groove (26) is coaxially arranged with the disturbance hole (8), and the two second force-bearing rings (10) are respectively arranged in the two first annular grooves (26); A positioning component is provided between the connecting plate (3) and the sliding plate (4), and the positioning component comprises a positioning sleeve (18), a positioning spring (19), a positioning rod (20) and a positioning block (21). The positioning sleeve (18) is fixedly arranged on the connecting plate (3), one end of the positioning sleeve (18) is provided with the freely retractable positioning rod (20), the end of the positioning rod (20) is provided with a spherical end head, and the positioning block (21) is provided with a positioning groove (22) matched with the spherical end head. The positioning block (21) is fixedly arranged on the sliding plate (4), one end of the positioning spring (19) is connected to the end of the positioning rod (20), and the other end of the positioning spring (19) is connected to the bottom of the positioning sleeve (18).

2. A bolt alignment device according to claim 1, characterized in that: The height adjustment component comprises a guide rod (14), a limit block (15) and a compression spring (16); one end of the guide rod (14) is fixedly arranged on the sliding plate (4); the other end of the guide rod (14) passes through a guide hole (17) provided on the mounting plate (5) and is fixedly connected to the limit block (15); the compression spring (16) is sleeved on the guide rod (14); one end of the compression spring (16) is in contact with the sliding plate (4) and the other end of the compression spring (16) is in contact with the mounting plate (5).

3. A bolt alignment device according to claim 1 or 2, characterized in that: The reset assembly comprises a first reset connecting rod (23), a second reset connecting rod (24) and a reset spring (25); one end of the first reset connecting rod (23) is fixedly connected to the mounting seat (2); one end of the second reset connecting rod (24) is fixedly connected to the mounting plate (5); and the other end of the first reset connecting rod (23) is connected to the other end of the second reset connecting rod (24) via the reset spring (25).

4. A bolt alignment device according to claim 2, characterized in that: Four groups of height adjustment components are arranged between the sliding plate (4) and the mounting plate (5), and all the guide rods (14) are parallel to each other, and the four guide rods (14) are arranged in a square shape.

5. A bolt alignment device according to claim 1 or 2, characterized in that: Three groups of connecting shafts (6) are arranged between the connecting plate (3) and the sliding plate (4), and all the connecting shafts (6) are parallel to each other.

6. A bolt alignment device according to claim 2, characterized in that: The axis center line of the guide rod (14) and the axis center line of the connecting shaft (6) are parallel to each other.

7. A bolt alignment device according to claim 1 or 2, characterized in that: The sliding plate (4) is provided with a second annular groove (27), the second annular groove (27) is coaxially arranged with the connecting shaft (6), and the first force ring (9) is arranged in the second annular groove (27).

8. A bolt alignment device according to claim 1 or 2, characterized in that: A convex ring (28) is coaxially fixedly disposed on the fixed disk (7), and the first force-bearing ring (9) is sleeved on the convex ring (28).

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