Positioning and punching device for processing bridge steel structure

Abstract

This invention provides a positioning and drilling device for bridge steel structure processing, comprising a frame, a conveyor for transporting workpieces mounted on the frame, a clamp and a drilling mechanism at one end of the frame, the clamp for fixing the workpiece, the drilling mechanism positioned above the clamp, and positioning mechanisms symmetrically arranged on both sides of the conveyor for positioning the workpiece. The positioning mechanisms are connected to an adjustment mechanism for adjusting the position of the positioning mechanisms. A support mechanism is also mounted on the frame, positioned at the bottom of the workpiece for supporting it. This invention, by using a longer positioning mechanism, provides a larger support area and more stable positioning. Combined with the clamp, this increases drilling accuracy. The longer positioning mechanism provides more support points, reducing vibration and displacement, and improving the overall stability of the drilling device.

Description

Technical Field

[0001] This invention relates to the field of positioning and drilling technology, specifically to a positioning and drilling device for processing bridge steel structures. Background Technology

[0002] A bridge generally refers to a structure erected over rivers, lakes, or seas to allow vehicles and pedestrians to pass smoothly. To adapt to the rapidly developing modern transportation industry, the term "bridge" has also come to refer to structures built across mountains, challenging geological conditions, or to meet other transportation needs, making travel more convenient. Bridges are constructed using steel structures. Before constructing multi-directional connections between steel structures, holes need to be drilled at corresponding locations within the steel structures, thus requiring a drilling device specifically designed for bridge steel structures.

[0003] For example, a positioning and drilling device for bridge steel structure processing, disclosed in Chinese Patent Publication No. CN217166574U, includes a support base, a support plate fixedly connected to the support base, a movable groove formed on the support plate, a steel plate slidably connected inside the movable groove, a positioning sleeve slidably sleeved on the outside of the support plate, the positioning sleeve contacting the steel plate, a guide block fixedly connected to the positioning sleeve, a top plate fixedly connected to the support plate, a connecting plate fixedly connected to the positioning sleeve, and a support rod slidably connected inside the connecting plate.

[0004] The aforementioned application incorporates a positioning sleeve, which positions the steel plate to be drilled within a movable slot on the support plate, effectively preventing movement during processing. This solves the problem of existing drilling devices for bridge steel structure processing lacking a positioning mechanism. However, because existing bridge steel structures are generally quite long, current drilling devices typically require multiple adjustments and fixations to ensure accurate drilling positions, consuming significant time and manpower and reducing production efficiency. Summary of the Invention

[0005] 1. The technical problem that the invention aims to solve

[0006] The present invention provides a positioning and drilling device for processing bridge steel structures, in order to solve the technical problems existing in the background art.

[0007] 2. Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a positioning and drilling device for processing bridge steel structures, comprising a frame, a conveyor for transporting workpieces mounted on the frame, a clamp and a drilling mechanism mounted at one end of the frame, the clamp for fixing the workpiece, the drilling mechanism being positioned above the clamp, positioning mechanisms symmetrically arranged on both sides of the conveyor for positioning the workpiece, the positioning mechanism being connected to an adjustment mechanism for adjusting the position of the positioning mechanism, and a support mechanism mounted on the frame, the support mechanism being positioned at the bottom of the workpiece for supporting the workpiece.

[0009] Preferably, the positioning mechanism includes a connecting shaft, a positioning plate, and several mounting boxes. A rack shaft is slidably mounted in each mounting box. A mounting block is fixedly mounted on the end of the rack shaft near the workpiece. The positioning plate is fixed on the mounting block. Several first gears are fixedly mounted on the connecting shaft. The first gears mesh with the rack shaft. A bearing is fixedly mounted on the mounting box. The connecting shaft is disposed inside the bearing. The lower end of the mounting box is slidably mounted on a slider. The lower end of the slider is fixed to the frame.

[0010] Preferably, the adjusting mechanism includes a second motor and an electric push rod. A second gear is fixedly installed on the output end of the second motor, and a third gear is fixedly installed on the connecting shaft. The second gear and the third gear mesh. One end of the electric push rod is hinged to the frame, and the other end of the electric push rod is hinged to the connecting rod. The other end of the connecting rod is movably connected to the connecting shaft.

[0011] Preferably, the drilling mechanism includes a traversing mechanism and a lifting mechanism. The traversing mechanism is fixedly installed on the frame, and a lifting mechanism is fixedly installed on its output end. A motor mounting plate is fixedly installed on the output end of the lifting mechanism, and a first motor is fixedly installed on the motor mounting plate. A drill bit is fixedly installed on the output end of the first motor.

[0012] Preferably, the clamps are symmetrically arranged on both sides of the workpiece. The clamps include a first mounting bracket fixed on the frame, a hydraulic cylinder fixedly mounted on the first mounting bracket, a clamping block fixedly mounted on the piston rod of the hydraulic cylinder, a guide shaft fixedly mounted on the first mounting bracket, and the clamping block slidably mounted on the guide shaft.

[0013] Preferably, the support mechanism includes a connecting profile, the upper end of which is provided with a plurality of second mounting brackets, a support block is rotatably mounted on the second mounting bracket, and a telescopic rod is provided between the second mounting bracket and the support block.

[0014] Preferably, a plurality of guide blocks are fixedly installed at the lower end of the connecting profile, and a guide rail is fixedly installed on the frame, with the guide blocks slidably installed on the guide rail.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the technical solution provided by this invention has the following advantages:

[0017] This invention utilizes a positioning and adjustment mechanism. An electric push rod and connecting rod drive a connecting shaft closer to the workpiece, causing positioning plates on both sides of the workpiece to push it to a designated position, thus achieving positioning of the workpiece by the positioning plates. Furthermore, a second motor, a second gear, and a third gear drive the connecting shaft to rotate, which in turn drives the first gear to rotate, causing the rack shaft to move accordingly. This allows the positioning plates to move closer to or further away from the workpiece, further adjusting their position for precise control. This flexibility can adapt to different drilling requirements and ensure accurate positioning. The invention also features a longer positioning mechanism. Shorter positioning mechanisms are prone to instability, while a longer mechanism provides a larger support area and more stable positioning, thereby increasing drilling accuracy. The longer positioning mechanism provides more support points, and in conjunction with the clamps, reduces vibration and displacement, improving the overall stability of the drilling device.

[0018] This invention provides a support mechanism at the bottom of the workpiece. The connecting profile of the support structure has several sets of second mounting brackets and support blocks. During drilling, the telescopic rod supports the support blocks, allowing them to better resist external forces and prevent deformation during drilling. This ensures the accuracy and consistency of the drilling operation. Furthermore, by providing guide blocks and guide rails at the lower end of the connecting profile, the support position of the support blocks can be adjusted by moving the connecting profile, providing a more uniform distribution of support force. This effectively reduces localized load concentration on the bridge steel structure, helping to balance the load and reduce structural stress. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the upper structure of the present invention;

[0021] Figure 3 This is an enlarged schematic diagram of region A of the present invention;

[0022] Figure 4 This is a schematic diagram of the tail structure of the present invention;

[0023] Figure 5 This is an enlarged schematic diagram of region B of the present invention;

[0024] Figure 6 This is a side view of the present invention;

[0025] Figure 7 This is an enlarged schematic diagram of region C of the present invention;

[0026] Figure 8 This is a schematic diagram of the clamp structure of the present invention;

[0027] Figure 9 This is a schematic diagram of the drilling mechanism of the present invention.

[0028] Figure Labels

[0029] 1. Frame; 2. Conveyor; 3. Workpiece; 4. Drilling mechanism; 41. Transverse mechanism; 42. Lifting mechanism; 43. Motor mounting plate; 44. First motor; 45. Drill bit; 5. Fixture; 51. First mounting frame; 52. Clamping block; 53. Hydraulic cylinder; 54. Guide shaft; 6. Positioning mechanism; 61. Connecting shaft; 62. Mounting box; 63. Rack shaft; 64. Mounting block; 65. Positioning plate; 66. First gear; 67. Bearing; 68. Slider; 7. Support mechanism; 71. Support block; 72. Second mounting frame; 73. Connecting profile; 74. Guide block; 75. Guide rail; 8. Adjustment mechanism; 81. Second motor; 82. Second gear; 83. Third gear; 84. Electric push rod; 85. Connecting rod. Detailed Implementation

[0030] To facilitate understanding of the present invention, a more complete description of the invention will be given below with reference to the accompanying drawings, which illustrate several embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the invention will be more thorough and complete.

[0031] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "page," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not 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 invention.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In this invention, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," and "equipped" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0034] It should be noted that the structures not described in this invention are not related to the design points and improvement directions of this invention, and are the same as or can be implemented using existing technologies, so they will not be elaborated here. Example

[0035] See attached document Figures 1-9 A positioning and drilling device for processing bridge steel structures includes a frame 1, a conveyor 2 for transporting workpieces 3 on the frame 1, a clamp 5 and a drilling mechanism 4 at one end of the frame 1, the clamp 5 for fixing the workpieces 3 (i.e., bridge steel structures), the drilling mechanism 4 being positioned above the clamp 5, positioning mechanisms 6 being symmetrically arranged on both sides of the conveyor 2 for positioning the workpieces 3, the positioning mechanisms 6 being connected to an adjustment mechanism 8 for adjusting the position of the positioning mechanisms 6, and a support mechanism 7 being provided on the frame 1 for supporting the workpieces 3 at the bottom.

[0036] The positioning mechanism 6 includes a connecting shaft 61, a positioning plate 65, and several mounting boxes 62. A rack shaft 63 is slidably installed in each mounting box 62. A mounting block 64 is fixedly installed on the end of the rack shaft 63 near the workpiece 3. The positioning plate 65 is fixed on the mounting block 64. The length of the positioning plate 65 is greater than or close to that of the workpiece 3. Several first gears 66 are fixedly installed on the connecting shaft 61. The first gears 66 mesh with the rack shaft 63. A bearing 67 is fixedly installed on the mounting box 62. The connecting shaft 61 is located inside the bearing 67. The lower end of the mounting box 62 is slidably installed on a slider 68. The lower end of the slider 68 is fixed on the frame 1.

[0037] The adjustment mechanism 8 includes a second motor 81 and an electric push rod 84. A second gear 82 is fixedly installed on the output end of the second motor 81, and a third gear 83 is fixedly installed on the connecting shaft 61. The second gear 82 and the third gear 83 mesh. One end of the electric push rod 84 is hinged to the frame 1, and the other end of the electric push rod 84 is hinged to the connecting rod 85. The other end of the connecting rod 85 is movably connected to the connecting shaft 61.

[0038] The drilling mechanism 4 includes a transverse movement mechanism 41 and a lifting mechanism 42. The transverse movement mechanism 41 is fixedly installed on the frame 1, and the lifting mechanism 42 is fixedly installed on its output end. A motor mounting plate 43 is fixedly installed on the output end of the lifting mechanism 42. A first motor 44 is fixedly installed on the motor mounting plate 43, and a drill bit 45 is fixedly installed on the output end of the first motor 44.

[0039] The fixture 5 is symmetrically arranged on both sides of the workpiece 3. The fixture 5 includes a first mounting frame 51 fixed on the frame 1. A hydraulic cylinder 53 is fixedly mounted on the first mounting frame 51. A clamping block 52 is fixedly mounted on the piston rod of the hydraulic cylinder 53. A guide shaft 54 ​​is fixedly mounted on the first mounting frame 51. The clamping block 52 is slidably mounted on the guide shaft 54.

[0040] The support mechanism 7 includes a connecting profile 73. Several second mounting brackets 72 are provided at the upper end of the connecting profile 73. Support blocks 71 are rotatably mounted on the second mounting brackets 72. A telescopic rod is provided between the second mounting brackets 72 and the support blocks 71. Several guide blocks 74 are fixedly mounted at the lower end of the connecting profile 73. A guide rail 75 is fixedly mounted on the frame 1, and the guide blocks 74 are slidably mounted on the guide rail 75.

[0041] Working Principle: The workpiece 3 is placed on the conveyor 2, which is a double-rail conveyor. The adjustment mechanisms 8 on both sides of the workpiece 3 operate simultaneously, activating the electric push rod 84. The push rod of the electric push rod 84 retracts, pulling the connecting shaft 61 through the connecting rod 85. The connecting shaft 61 drives all the mounting boxes 62 to move closer to the workpiece 3 along the slider 68, thereby bringing the positioning plates 65 on both sides of the workpiece 3 into contact with the workpiece 3 and pushing the workpiece 3 to the designated position. In this embodiment, the designated position is the center position of the frame 1, thus achieving the positioning of the workpiece 3 by the positioning plate 65. In addition, the second motor 81, the second gear 82, and the third gear 83 drive the connecting shaft 61 to rotate, thereby driving the first gear 66 to rotate. The rack shaft 63 moves accordingly, and the rack shaft 63 drives the positioning plate 65 to move through the mounting block 64, thereby moving the positioning plate 65 closer to or further away from the workpiece 3, further adjusting the position of the positioning plate 65 to achieve precise adjustment. This flexibility can adapt to different drilling requirements and ensure accurate positioning.

[0042] Then, the hydraulic cylinder 53 of the fixture 5 is activated. The piston rod of the hydraulic cylinder 53 extends, driving the clamping block 52 to move along the guide shaft 54, so that the two clamping blocks 52 are relatively close to the workpiece 3 and clamp the workpiece 3. In conjunction with the positioning mechanism 6, more support points are provided, which can reduce vibration and displacement and improve the stability of the entire drilling device.

[0043] Then, the first motor 44 of the drilling mechanism 4 is started, and the first motor 44 drives the drill bit 45 to rotate. Then, the drilling position is adjusted by the horizontal movement mechanism 41, and then the lifting mechanism 42 is started to make the motor mounting plate 43 move downward, so that the drill bit 45 can drill.

[0044] A support mechanism 7 is provided at the bottom of the workpiece 3. Several sets of second mounting brackets 72 and support blocks 71 are provided on the connecting profile 73 of the support structure 7. When drilling, the telescopic rod supports the support blocks 71, so that the support blocks 71 support the workpiece 3, which can better resist the action of external forces and prevent deformation during the drilling process. This can ensure the accuracy and consistency of the drilling operation. In addition, by providing guide blocks 74 and guide rails 75 at the lower end of the connecting profile 73, it is easy to move the connecting profile 73 to adjust the support position of the support blocks 71, providing a more uniform distribution of support force. This effectively reduces the local load concentration on the bridge steel structure, helps to balance the load and reduce the stress of the structure.

[0045] The above-described embodiments are merely illustrative of certain implementations of the present invention, and are described in a relatively specific and detailed manner. However, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements are all within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A positioning and drilling device for processing bridge steel structures, characterized in that: The machine includes a frame (1), on which a conveyor (2) for transporting workpieces (3) is provided. A clamp (5) and a drilling mechanism (4) are provided at one end of the frame (1). The clamp (5) is used to fix the workpieces (3). The drilling mechanism (4) is located above the clamp (5). Positioning mechanisms (6) are symmetrically arranged on both sides of the conveyor (2). The positioning mechanisms (6) are used to position the workpieces (3). The positioning mechanisms (6) are connected to an adjustment mechanism (8). The adjustment mechanism (8) is used to adjust the position of the positioning mechanism (6). A support mechanism (7) is also provided on the frame (1). The support mechanism (7) is located at the bottom of the workpieces (3) and is used to support the workpieces (3). The positioning mechanism (6) includes a connecting shaft (61), a positioning plate (65), and several mounting boxes (62). A rack shaft (63) is slidably installed in each mounting box (62). A mounting block (64) is fixedly installed on one end of the rack shaft (63) near the workpiece (3). The positioning plate (65) is fixed on the mounting block (64). Several first gears (66) are fixedly installed on the connecting shaft (61). The first gears (66) mesh with the rack shaft (63). A bearing (67) is fixedly installed on the mounting box (62). The connecting shaft (61) is located inside the bearing (67). The lower end of the mounting box (62) is slidably installed on a slider (68). The lower end of the slider (68) is fixed on the frame (1). The adjustment mechanism (8) includes a second motor (81) and an electric push rod (84). A second gear (82) is fixedly installed on the output end of the second motor (81), and a third gear (83) is fixedly installed on the connecting shaft (61). The second gear (82) and the third gear (83) mesh. One end of the electric push rod (84) is hinged to the frame (1), and the other end of the electric push rod (84) is hinged to the connecting rod (85). The other end of the connecting rod (85) is movably connected to the connecting shaft (61). The drilling mechanism (4) includes a transverse mechanism (41) and a lifting mechanism (42). The transverse mechanism (41) is fixedly installed on the frame (1), and the lifting mechanism (42) is fixedly installed on its output end. A motor mounting plate (43) is fixedly installed on the output end of the lifting mechanism (42), and a first motor (44) is fixedly installed on the motor mounting plate (43). A drill bit (45) is fixedly installed on the output end of the first motor (44). The clamp (5) is symmetrically arranged on both sides of the workpiece (3). The clamp (5) includes a first mounting bracket (51) fixed on the frame (1). A hydraulic cylinder (53) is fixedly mounted on the first mounting bracket (51). A clamping block (52) is fixedly mounted on the piston rod of the hydraulic cylinder (53). A guide shaft (54) is fixedly mounted on the first mounting bracket (51). The clamping block (52) is slidably mounted on the guide shaft (54).

2. The positioning and drilling device for bridge steel structure processing according to claim 1, characterized in that: The support mechanism (7) includes a connecting profile (73), and a plurality of second mounting brackets (72) are provided on the upper end of the connecting profile (73). A support block (71) is rotatably mounted on the second mounting bracket (72), and a telescopic rod is provided between the second mounting bracket (72) and the support block (71).

3. The positioning and drilling device for bridge steel structure processing according to claim 2, characterized in that: A number of guide blocks (74) are fixedly installed at the lower end of the connecting profile (73), and a guide rail (75) is fixedly installed on the frame (1). The guide blocks (74) are slidably installed on the guide rail (75).

Images