Bolt automatic bending test device
The automatic bolt bending test device driven by servo motors and pneumatic cylinders solves the problem of the inability to adjust the support blocks, realizes automated lifting and precise bending tests on bolts of different lengths, and improves the application range and testing accuracy of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-14
AI Technical Summary
The existing bolt bending test device cannot adjust the support block, which makes it unable to meet the testing requirements for bolts of different lengths, requiring frequent device replacement and reducing its application range.
An automatic bolt bending test device was designed. A servo motor drives a rotating shaft and a long rod, which in turn drives a guide block and a support block to adjust to accommodate bolts of different lengths. A pneumatic cylinder and a gear system are used to achieve precise extrusion and bending operations.
It enables automated lifting and precise bending tests on bolts of different lengths, improving the application range and testing accuracy of the device while reducing operational complexity.
Smart Images

Figure CN224122350U_ABST
Abstract
Description
Technical Field
[0001] The embodiments disclosed herein relate to the field of bolt testing equipment technology, and more specifically, to an automatic bolt bending test device. Background Technology
[0002] Bolt: A mechanical part, a cylindrical threaded fastener fitted with a nut. If the nut is unscrewed from the bolt, the two parts can be separated. Therefore, bolted connections are detachable connections.
[0003] Currently, operators frequently use bolt bending test devices when inspecting bolts before they leave the factory. However, while existing bolt bending test devices have basic automatic bending functions, the fixed support blocks on the device mean that when operators need to perform bending tests on bolts of different batches and lengths, the device cannot meet their operational needs. This forces operators to frequently change the corresponding device to perform bending tests, reducing the device's application range. Therefore, improvements are needed. Utility Model Content
[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide an automatic bolt bending test device, which solves the technical problem that the support block cannot be adjusted in the related art.
[0005] According to one aspect, at least one embodiment of this disclosure provides an automatic bolt bending test device, including a workbench, a servo motor fixedly mounted on the front right side of the bottom end of the workbench, a rotating shaft fixedly sleeved at the other end of the output shaft of the servo motor, a long rod fixedly sleeved on the outer surface of the rotating shaft, a round shaft movably connected inside the long rod, a guide block located on the right side inside the workbench fixedly connected to the top end of the round shaft, a support block fixedly connected to the top end of the guide block, and the bottom end of the support block movably connected to the top of the workbench.
[0006] As a preferred embodiment of this utility model, a connecting block is fixedly connected to the left side of the top of the workbench, a No. 1 pneumatic cylinder is fixedly installed at the top of the connecting block, and a stop block is fixedly connected to the bottom of the No. 1 pneumatic cylinder.
[0007] As a preferred embodiment of this utility model, a limiting block is movably connected to the right side of the rear of the workbench, and a connecting frame is fixedly connected to the top of the limiting block.
[0008] As a preferred technical solution of this utility model, a second pneumatic cylinder is fixedly connected to the top of the connecting frame, and the bottom end of the second pneumatic cylinder passes through the connecting frame and extends to the outside of the top of the inner surface of the connecting frame and is fixedly connected to a pressing block.
[0009] As a preferred technical solution of this utility model, a mounting block is fixedly connected to the rear of the left side of the top of the workbench. A movable shaft is movably installed inside the mounting block. The other end of the movable shaft passes through the mounting block and extends to the rear of the mounting block, and a gear is fixedly sleeved on its outer surface.
[0010] As a preferred embodiment of this utility model, a moving rod located directly in front of the gear is fixedly sleeved on the outer surface of the movable shaft, and a movable rod is hinged to the other end of the moving rod. The other end of the movable rod is hinged to the bottom end of the left side of the connecting frame.
[0011] As a preferred technical solution of this utility model, a No. 3 pneumatic cylinder is fixedly installed at the rear of the right side of the workbench, and a gear plate is fixedly connected to the other end of the No. 3 pneumatic cylinder. The outer surface of the gear plate meshes with the outer surface of the gear.
[0012] As a preferred embodiment of this utility model, table legs are fixedly connected to the four corners of the bottom of the workbench, and the number of table legs is four, with the four table legs having the same size.
[0013] As a preferred embodiment of this utility model, the outer surface of the guide block is movably connected to the interior of the worktable, and the guide block is inverted T-shaped.
[0014] As a preferred embodiment of this utility model, the top end of the long rod is movably connected to the bottom end of the workbench, and the interior of the long rod and the outer surface of the round shaft are both smooth.
[0015] The beneficial effects of the embodiments disclosed herein are as follows:
[0016] 1. In this disclosure, by setting up a servo motor, a rotating shaft, a long rod, a round shaft, and a guide block, the operator starts the servo motor, which causes the rotating shaft and the long rod to rotate. This causes the inner surface of the long rod to press and push the outer surface of the round shaft, which in turn causes the round shaft to drive the guide block and the support block to move to the left. This allows the operator to adjust the support block according to the actual length of the bolt, enabling the support block to support bolts of different lengths, thereby increasing the application range of the bending test device.
[0017] 2. In this disclosure, through the arrangement of gears, moving rods, movable rods, No. 3 pneumatic cylinders, and toothed plates, the operator operates No. 3 pneumatic cylinders, which causes the toothed plates to move to the right, thereby causing the outer surface of the toothed plates to mesh with the outer surface of the gears. This, in turn, causes the gears to drive the movable shaft and moving rods to rotate, which in turn causes the movable rods to drive the connecting frame as a whole to move to the left. This allows the extrusion block to move to the exact center of the bolt, avoiding the subsequent impact on the bending test results due to uneven extrusion positions. This operation brings convenience to the operator in actual use. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.
[0019] Figure 1 This is a schematic diagram of the structure of the workbench in one embodiment of this disclosure;
[0020] Figure 2 for Figure 1 A cross-sectional view of the front of the workbench in the embodiment;
[0021] Figure 3 for Figure 1 A cross-sectional view of the side of the mounting block in the embodiment;
[0022] Figure 4 for Figure 1 A schematic diagram of the structure of the side of the workbench in the embodiment;
[0023] Figure 5 for Figure 1 A cross-sectional view of the side of the No. 1 pneumatic cylinder in the embodiment;
[0024] Figure 6 for Figure 1 A cross-sectional view of the side of the servo motor in the embodiment;
[0025] Figure 7 for Figure 1 A schematic diagram of the structure at the bottom of the workbench in the embodiment.
[0026] In the diagram: 1. Workbench; 2. Servo motor; 3. Rotary shaft; 4. Long rod; 5. Round shaft; 6. Guide block; 7. Support block; 8. Connecting block; 9. No. 1 pneumatic cylinder; 10. Stop block; 11. Limit block; 12. Connecting frame; 13. No. 2 pneumatic cylinder; 14. Extrusion block; 15. Mounting block; 16. Movable shaft; 17. Gear; 18. Moving rod; 19. Movable rod; 20. No. 3 pneumatic cylinder; 21. Gear plate; 22. Table leg. Detailed Implementation
[0027] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.
[0028] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0029] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.
[0030] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0031] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.
[0032] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0033] like Figures 1-7As shown, an automatic bolt bending test device according to an embodiment of the present disclosure is illustrated, including a workbench 1. A servo motor 2 is fixedly installed on the front right side of the bottom of the workbench 1. A rotating shaft 3 is fixedly sleeved on the other end of the output shaft of the servo motor 2. A long rod 4 is fixedly sleeved on the outer surface of the rotating shaft 3. A round shaft 5 is movably connected inside the long rod 4. A guide block 6 located on the right side inside the workbench 1 is fixedly connected to the top of the round shaft 5. A support block 7 is fixedly connected to the top of the guide block 6. The bottom end of the support block 7 is movably connected to the top of the workbench 1.
[0034] When the operator starts the servo motor 2, the rotating shaft 3 and the long rod 4 will rotate, causing the inner surface of the long rod 4 to press and push the outer surface of the round shaft 5, which in turn causes the round shaft 5 to drive the guide block 6 and the support block 7 to move to the left, so that the support block 7 can lift bolts of different lengths.
[0035] In some examples, a connecting block 8 is fixedly connected to the left side of the top of the workbench 1, a first pneumatic cylinder 9 is fixedly installed at the top of the connecting block 8, and a stop block 10 is fixedly connected to the bottom of the first pneumatic cylinder 9.
[0036] When the operator operates the first pneumatic cylinder 9, the stop block 10 will move downwards.
[0037] In some examples, a limit block 11 is movably connected to the right side of the rear of the workbench 1, and a connecting frame 12 is fixedly connected to the top of the limit block 11.
[0038] Due to the design of the limit block 11, it can play a good guiding role for the connecting frame 12.
[0039] In some examples, a second pneumatic cylinder 13 is fixedly connected to the top of the connecting frame 12, and the bottom end of the second pneumatic cylinder 13 passes through the connecting frame 12 and extends to the outside of the top of the inner surface of the connecting frame 12 and is fixedly connected to a pressing block 14.
[0040] When the operator operates the second pneumatic cylinder 13, the extrusion block 14 will move downward, thereby allowing the bottom end of the extrusion block 14 to perform a bending test on the extrusion bolt.
[0041] In some examples, a mounting block 15 is fixedly connected to the rear of the left side of the top of the workbench 1. A movable shaft 16 is movably mounted inside the mounting block 15. The other end of the movable shaft 16 passes through the mounting block 15 and extends to the rear of the mounting block 15, and a gear 17 is fixedly sleeved on its outer surface.
[0042] When gear 17 rotates, it will drive the movable shaft 16 to rotate as well.
[0043] In some examples, a moving rod 18 located directly in front of the gear 17 is fixedly sleeved on the outer surface of the movable shaft 16, and a movable rod 19 is hinged to the other end of the moving rod 18. The other end of the movable rod 19 is hinged to the bottom end of the left side of the connecting frame 12.
[0044] When the movable shaft 16 rotates, it will drive the moving rod 18 to rotate as well.
[0045] In some examples, a No. 3 pneumatic cylinder 20 is fixedly installed at the rear right side of the workbench 1, and a toothed plate 21 is fixedly connected to the other end of the No. 3 pneumatic cylinder 20. The outer surface of the toothed plate 21 meshes with the outer surface of the gear 17.
[0046] When the operator moves the No. 3 pneumatic cylinder 20, the toothed plate 21 will move to the right.
[0047] In some examples, table legs 22 are fixedly connected to the four corners of the bottom of the workbench 1. There are four table legs 22, and the four table legs 22 are the same size.
[0048] The design of the four table legs 22 provides excellent support for the entire workbench 1.
[0049] In some examples, the outer surface of the guide block 6 is movably connected to the interior of the worktable 1, and the guide block 6 is inverted T-shaped.
[0050] Due to the design of guide block 6, it can effectively limit the position of support block 7.
[0051] In some examples, the top end of the long rod 4 is movably connected to the bottom end of the worktable 1, and the interior of the long rod 4 and the outer surface of the round shaft 5 are both smooth.
[0052] Since both the interior of the long rod 4 and the outer surface of the round shaft 5 are smooth, the movement of the round shaft 5 inside the long rod 4 is smoother.
[0053] Working principle and usage process of this utility model:
[0054] First, the operator inserts one end of the bolt into the connecting block 8. Then, the first pneumatic cylinder 9 and the servo motor 2 are activated. The operation of the first pneumatic cylinder 9 causes the stop block 10 to move downward, thereby blocking the outer surface of the bolt inside the connecting block 8 and preventing instability of the bolt during subsequent bending and side viewing. The operation of the servo motor 2 causes the rotating shaft 3 and the long rod 4 to rotate, thereby causing the inner surface of the long rod 4 to press and push the outer surface of the round shaft 5. This causes the round shaft 5 to drive the guide block 6 and the support block 7 to move to the left, thereby enabling the support block 7 to lift bolts of different lengths placed by the operator.
[0055] Finally, the operator operates pneumatic cylinder 20 (number 3) and pneumatic cylinder 13 (number 2). The operation of pneumatic cylinder 20 causes the toothed plate 21 to move to the right, thereby causing the outer surface of the toothed plate 21 to mesh with the outer surface of the gear 17. This causes the gear 17 to drive the movable shaft 16 to rotate. The rotation of the movable shaft 16 causes the moving rod 18 to rotate, which in turn causes the moving rod 19 to pull the connecting frame 12 to move to the left. This allows the pressing block 14 to move to the center of the bolt, thereby reducing subsequent test errors. The operation of pneumatic cylinder 13 causes the pressing block 14 to move downward, causing the bottom end of the pressing block 14 to press against the outer surface of the bolt, thus enabling automatic bending test of the bolt.
[0056] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications or substitutions should be covered within the scope of the claims of this disclosure.
Claims
1. A bolt automatic bending testing device, comprising a workbench (1), characterized in that: A servo motor (2) is fixedly installed on the front right side of the bottom of the workbench (1). A rotating shaft (3) is fixedly sleeved on the other end of the output shaft of the servo motor (2). A long rod (4) is fixedly sleeved on the outer surface of the rotating shaft (3). A round shaft (5) is movably connected inside the long rod (4). A guide block (6) located on the right side inside the workbench (1) is fixedly connected to the top of the round shaft (5). A support block (7) is fixedly connected to the top of the guide block (6). The bottom end of the support block (7) is movably connected to the top of the workbench (1).
2. The automatic bolt bending test device according to claim 1, characterized in that: A connecting block (8) is fixedly connected to the left side of the top of the workbench (1). A first pneumatic cylinder (9) is fixedly installed at the top of the connecting block (8). A stop block (10) is fixedly connected to the bottom of the first pneumatic cylinder (9).
3. The automatic bolt bending test device according to claim 1, characterized in that: The workbench (1) is movably connected to the right side of the rear interior, and a connecting frame (12) is fixedly connected to the top of the limiting block (11).
4. The automatic bolt bending test device according to claim 3, characterized in that: The top of the connecting frame (12) is fixedly connected to a second pneumatic cylinder (13), the bottom end of which passes through the connecting frame (12) and extends to the outside of the top of the inner surface of the connecting frame (12) and is fixedly connected to a pressing block (14).
5. The automatic bolt bending test device according to claim 1, characterized in that: A mounting block (15) is fixedly connected to the rear of the left side of the top of the workbench (1). A movable shaft (16) is movably installed inside the mounting block (15). The other end of the movable shaft (16) passes through the mounting block (15) and extends to the rear of the mounting block (15), and a gear (17) is fixedly sleeved on its outer surface.
6. The automatic bolt bending test device according to claim 5, characterized in that: The outer surface of the movable shaft (16) is fixedly sleeved with a moving rod (18) located directly in front of the gear (17). The other end of the moving rod (18) is hinged to a movable rod (19), and the other end of the movable rod (19) is hinged to the bottom end of the left side of the connecting frame (12).
7. The automatic bolt bending test device according to claim 1, characterized in that: A No. 3 pneumatic cylinder (20) is fixedly installed at the rear right side of the workbench (1). A toothed plate (21) is fixedly connected to the other end of the No. 3 pneumatic cylinder (20). The outer surface of the toothed plate (21) meshes with the outer surface of the gear (17).
8. The automatic bolt bending test device according to claim 1, characterized in that: The workbench (1) is fixedly connected to four corners at the bottom with table legs (22). There are four table legs (22), and the four table legs (22) are the same size.
9. The automatic bolt bending test device according to claim 1, characterized in that: The outer surface of the guide block (6) is movably connected to the interior of the worktable (1), and the guide block (6) is inverted T-shaped.
10. The automatic bolt bending test device according to claim 1, characterized in that: The top end of the long rod (4) is movably connected to the bottom end of the workbench (1), and the inside of the long rod (4) and the outer surface of the round shaft (5) are both smooth.