A drilling device for bridge steel formwork

Abstract

A drilling device for a bridge steel formwork effectively solves the problem of poor stability that affects the drilling quality. The device comprises a workbench, a frame is provided above the workbench, a drilling assembly is provided in the frame, slide blocks are provided at the left and right ends of the workbench, an electric push rod is installed on the slide block, the output end of the electric push rod is fixedly connected to the frame, a first lead screw threadedly connected to the slide block is provided on the workbench, a first bevel gear is coaxially fixed to the front end of the first lead screw, a second bevel gear meshing with the first bevel gear is coaxially fixed to the transmission shaft, and clamping assemblies are provided on the left and right sides of the workbench, the clamping assembly comprises a supporting plate and a splint, the supporting plate is fixedly connected to the workbench, a screw is threadedly connected to the supporting plate, the screw contacts the splint, guide rods located at the front and rear sides of the screw are fixed on the splint, the guide rods are slidably connected left and right in the support plate, end caps are coaxially fixed to the guide rods, a spring is sleeved on the guide rod, and the spring is located between the end cap and the support plate.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel template processing, in particular to a drilling device for a bridge steel template. Background Art

[0002] Bridge steel formwork is a temporary structure used for concrete pouring during bridge construction to ensure that the concrete is formed and meets the design requirements. Drilling holes in bridge steel formwork is a key process in bridge construction, mainly used for accurate connection, fixation or reserved holes for installing other components. Most of the existing bridge steel formwork drilling is done manually, which will cause axial and longitudinal deviations of the holes, resulting in unstable installation and affecting product quality. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the utility model is to provide a drilling device for bridge steel formwork, which effectively solves the problem of poor stability affecting the drilling quality.

[0004] The technical solution to solve the technical problem is: it includes a workbench, a frame is provided above the workbench, a drilling assembly is connected to the frame for sliding left and right, sliders are provided at left and right ends of the workbench, an electric push rod arranged in the vertical direction is installed on the slider, the output end of the electric push rod is fixedly connected to the frame, a first screw threadedly connected to the slider is provided on the workbench, the first screw is arranged in the front and rear directions, a first bevel gear is coaxially fixed to the front end of the first screw, a horizontal transmission shaft is provided on the front side of the workbench, a second bevel gear meshing with the first bevel gear is coaxially fixed to the transmission shaft, clamping assemblies are provided on the left and right sides of the workbench, a bridge steel formwork is placed between the two clamping assemblies, the clamping assembly includes a support plate and a splint, the support plate is fixedly connected to the workbench, a screw is threadedly connected to the support plate, the screw is in contact with the splint, guide rods located on the front and rear sides of the screw are fixed on the splint, the guide rods are connected for sliding left and right in the support plate, end caps are coaxially fixed to the guide rods, a spring is sleeved on the guide rod, and the spring is located between the end cap and the support plate.

[0005] Preferably, the workbench is fixed with first guide rails located on the left and right sides of the first lead screw, and the slider slides back and forth on the first guide rails.

[0006] Preferably, the drilling assembly comprises a bracket, a first motor is installed in the bracket, and a drill bit is provided at the output end of the first motor.

[0007] Preferably, the frame is rotatably connected to a second lead screw arranged in a horizontal direction, the second lead screw is threadedly connected to the bracket, a second guide rail is fixed on the frame at the front and rear sides of the second lead screw, the bracket slides left and right on the second guide rail, a second motor is installed on the frame, and the second motor is coaxially fixedly connected to the second lead screw via a reducer.

[0008] Preferably, a third motor is installed on the workbench, and the third motor is coaxially fixedly connected to the transmission shaft via a reducer.

[0009] Preferably, a hand wheel is coaxially fixed to one end of the screw rod, and a hemisphere is fixed to the other end of the screw rod, and the hemisphere is in contact with the clamping plate.

[0010] Preferably, a through slot is provided in the middle of the workbench, a clamp is located in the through slot, the clamp is L-shaped, and includes a baffle and a support plate, and the upper surface of the support plate is in the same plane as the upper surface of the workbench.

[0011] Preferably, a collection box is provided under the workbench.

[0012] Compared with traditional equipment, the utility model has the following advantages: 1) the electric push rod controls the up and down movement of the drill bit, the first lead screw controls the front and back movement of the drill bit, and the second lead screw controls the left and right movement of the drill bit, and the position of the drill bit can be adjusted in all directions, with flexible operation, and can perform drilling operations on different positions of the bridge steel template. The lead screw transmission has high stability, thereby improving the accuracy of drilling; 2) the clamping assembly adopts a screw, a support plate, a guide rod, a spring and an L-shaped clamping plate, which has low cost and high stability, and can effectively clamp the bridge steel template. A hemisphere is adopted at one end of the screw, which can not only push the clamping plate, but also reduce the loss of the screw and the clamping plate, thereby extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the front view of the utility model;

[0014] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 3 It is a schematic diagram of the three-dimensional structure of the drilling assembly and the clamping assembly in the utility model;

[0016] Figure 4 yes Figure 3 A is a schematic diagram of a partial enlargement.

[0017] Figure numerals: 1. workbench; 2. frame; 3. slider; 4. electric push rod; 5. first lead screw; 6. first bevel gear; 7. transmission shaft; 8. second bevel gear; 9. bridge steel formwork; 10. support plate; 11. clamping plate; 111. baffle; 112. support plate; 12. screw; 13. guide rod; 14. end cap; 15. spring; 16. first guide rail; 17. bracket; 18. first motor; 19. drill bit; 20. second lead screw; 21. second motor; 22. third motor; 23. handwheel; 24. hemisphere; 25. collection box. DETAILED DESCRIPTION

[0018] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0019] Depend on Figures 1 to 4 A drilling device for a bridge steel formwork is provided, comprising a workbench 1, a frame 2 is provided above the workbench 1, a drilling assembly is slidably connected to the frame 2, slide blocks 3 are provided at the left and right ends of the workbench 1, an electric push rod 4 arranged in a vertical direction is installed on the slide block 3, the output end of the electric push rod 4 is fixedly connected to the frame 2, a first lead screw 5 threadedly connected to the slide block 3 is provided on the workbench 1, the first lead screw 5 is arranged in a front-to-back direction, a first bevel gear 6 is coaxially fixed to the front end of the first lead screw 5, a transmission shaft 7 in a horizontal direction is provided on the front side of the workbench 1, and a gear meshing with the first bevel gear 6 is coaxially fixed to the transmission shaft 7 The second bevel gear 8, the left and right sides of the workbench 1 are provided with clamping assemblies, a bridge steel formwork 9 is placed between the two clamping assemblies, the clamping assembly includes a support plate 10 and a clamping plate 11, the support plate 10 is fixedly connected to the workbench 1, a screw 12 is threadedly connected to the support plate 10, the screw 12 is in contact with the clamping plate 11, a guide rod 13 located on the front and rear sides of the screw 12 is fixed to the clamping plate 11, the guide rod 13 is slidably connected left and right in the support plate 10, an end cap 14 is coaxially fixed to the guide rod 13, a spring 15 is sleeved on the guide rod 13, and the spring 15 is located between the end cap 14 and the support plate 10.

[0020] In order to ensure the stability of the sliding block 3 when sliding forward and backward, first guide rails 16 located on the left and right sides of the first lead screw 5 are fixed on the workbench 1 , and the sliding block 3 slides forward and backward on the first guide rails 16 .

[0021] The drilling assembly includes a bracket 17, a first motor 18 is installed in the bracket 17, a drill bit 19 is arranged at the output end of the first motor 18, and the drill bit 19 is arranged in a vertical direction.

[0022] In order to ensure the stability of the drilling assembly sliding left and right, the frame 2 is rotatably connected to a second screw 20 arranged in the horizontal direction, the second screw 20 is threadedly connected to the bracket 17, and a second guide rail is fixed on the frame 2 at the front and rear sides of the second screw 20. The bracket 17 slides left and right on the second guide rail. A second motor 21 is installed on the frame 2, and the second motor 21 is coaxially fixedly connected to the second screw 20 via a reducer.

[0023] A third motor 22 is installed on the workbench 1 , and the third motor 22 is coaxially fixedly connected to the transmission shaft 7 via a reducer.

[0024] In order to reduce the wear between the screw rod 12 and the clamping plate 11 , a hand wheel 23 is coaxially fixed to one end of the screw rod 12 , and a hemisphere 24 is fixed to the other end of the screw rod 12 , and the hemisphere 24 is in contact with the clamping plate 11 .

[0025] In order to facilitate the placement of the bridge steel formwork 9, a through slot is provided in the middle of the workbench 1, and a clamp 11 is located in the through slot. The clamp 11 is L-shaped and includes a baffle 111 and a support plate 112. The upper surface of the support plate 112 is on the same plane as the upper surface of the workbench 1.

[0026] In order to facilitate the collection of drilling waste, a collection box 25 is provided under the workbench 1.

[0027] When the utility model is in use, the bridge steel template 9 is placed between the two clamping plates 11, the support plate 112 supports the bridge steel template 9, the upper surface of the support plate 112 is on the same plane as the upper surface of the workbench 1, and the workbench 1 can also support the front and rear ends of the bridge steel template 9, thereby improving the stability of the bridge steel template 9. The hand wheel 23 is turned, and the hand wheel 23 drives the screw rod 12 to rotate. The screw rod 12 spirally rotates in the support plate 10, and the screw rod 12 drives the hemisphere 24 to squeeze the baffle plate 111 to move closer to the bridge steel template 9. The guide rod 13 slides in the support plate 10, and the spring 15 is in a compressed state. The clamping assembly on the left side clamps and positions the left side of the bridge steel template 9, and the clamping assembly on the right side clamps and positions the right side of the bridge steel template 9. When the left and right sides of the bridge steel template 9 are clamped, the hand wheel 23 is stopped;

[0028] Start the second motor 21, the second motor 21 drives the second lead screw 20 to rotate coaxially through the reducer, the second lead screw 20 drives the bracket 17 to slide left and right on the second guide rail, the bracket 17 drives the first motor 18 and the drill bit 19 to move synchronously in the left and right directions, thereby adjusting the left and right direction position of the drill bit 19; start the third motor 22, the third motor 22 drives the transmission shaft 7 to rotate coaxially through the reducer, the transmission shaft 7 is rotationally connected with the workbench 1, the transmission shaft 7 drives the second bevel gear 8 to rotate coaxially, the second bevel gear 8 drives the first bevel gear 6 to rotate, the first bevel gear 6 drives the first lead screw 5 to rotate coaxially, the first lead screw 5 is rotationally connected with the workbench 1, the first lead screw 5 drives the slider 3 to slide back and forth on the first guide rail 16, the slider 3 drives the electric push rod 4, the frame 2 and the drilling assembly to move synchronously in the front and back directions, thereby adjusting the front and back direction position of the drill bit 19; start The first motor 18 is started, and the first motor 18 drives the drill bit 19 to rotate, and the electric push rod 4 is started. The electric push rod 4 controls the lifting movement of the frame 2, and the frame 2 drives the drilling assembly to move up and down synchronously, thereby adjusting the height of the drill bit 19, and realizing the drilling operation of the drill bit 19 on the bridge steel template 9. Through the mutual cooperation of the first motor 18, the second motor 21 and the electric push rod 4, the all-round adjustment of the up and down, left and right, front and back positions of the drill bit 19 is realized, and holes can be flexibly drilled at different positions of the bridge steel template 9. The operation is simple, and the waste residue after drilling falls down through the groove to the inside of the collection box 25 for easy collection. After the drilling is completed, the hand wheel 23 is reversed, and the hand wheel 23 drives the screw 12 to spirally reset on the support plate 10. Under the action of the spring 15, the splint 11 and the guide rod 13 are reset, and the splint 11 is away from the bridge steel template 9, and the bridge steel template 9 can be replaced.

[0029] This embodiment does not impose any formal restrictions on the shape, material, structure, etc. of the utility model. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the utility model are within the protection scope of the technical solution of the utility model.

Claims

1. A drilling device for a bridge steel formwork, characterized in that: The invention comprises a workbench (1), wherein a frame (2) is provided above the workbench (1), a drilling assembly is slidably connected to the frame (2) in the left and right directions, a slide block (3) is provided at the left and right ends of the workbench (1), an electric push rod (4) arranged in a vertical direction is installed on the slide block (3), the output end of the electric push rod (4) is fixedly connected to the frame (2), a first lead screw (5) is provided on the workbench (1) and is threadedly connected to the slide block (3), the first lead screw (5) is arranged in the front-to-back direction, a first bevel gear (6) is coaxially fixed at the front end of the first lead screw (5), a transmission shaft (7) in the horizontal direction is provided on the front side of the workbench (1), a second bevel gear (8) meshing with the first bevel gear (6) is coaxially fixed to the transmission shaft (7), and the workbench (1) is provided with a transmission shaft (7) in the horizontal direction. A clamping assembly is provided on both sides of the table (1), and a bridge steel formwork (9) is placed between the two clamping assemblies. The clamping assembly comprises a support plate (10) and a clamping plate (11). The support plate (10) is fixedly connected to the workbench (1). A screw rod (12) is threadedly connected to the support plate (10). The screw rod (12) is in contact with the clamping plate (11). A guide rod (13) located at both sides of the screw rod (12) is fixed to the clamping plate (11). The guide rod (13) is slidably connected to the support plate (10) from left to right. An end cap (14) is coaxially fixed to the guide rod (13). A spring (15) is sleeved on the guide rod (13). The spring (15) is located between the end cap (14) and the support plate (10).

2. A drilling device for a bridge steel formwork according to claim 1, characterized in that: The workbench (1) is fixed with first guide rails (16) located on the left and right sides of the first lead screw (5), and the slide block (3) slides back and forth on the first guide rails (16).

3. A drilling device for a bridge steel formwork according to claim 1, characterized in that: The drilling assembly comprises a bracket (17), a first motor (18) is installed in the bracket (17), and a drill bit (19) is provided at the output end of the first motor (18).

4. A drilling device for a bridge steel formwork according to claim 1, characterized in that: The frame (2) is rotatably connected to a second lead screw (20) arranged in a horizontal direction, the second lead screw (20) is threadedly connected to the bracket (17), a second guide rail is fixed in the frame (2) and is located at both sides of the second lead screw (20), the bracket (17) slides left and right on the second guide rail, and a second motor (21) is installed on the frame (2), and the second motor (21) is coaxially fixedly connected to the second lead screw (20) via a reducer.

5. The drilling device for a bridge steel formwork according to claim 1, characterized in that: A third motor (22) is installed on the workbench (1), and the third motor (22) is coaxially fixedly connected to the transmission shaft (7) via a reducer.

6. The drilling device for a bridge steel formwork according to claim 1, characterized in that: A hand wheel (23) is coaxially fixed to one end of the screw rod (12), and a hemispherical body (24) is fixed to the other end of the screw rod (12), and the hemispherical body (24) is in contact with the clamping plate (11).

7. The drilling device for a bridge steel formwork according to claim 1, characterized in that: A through slot is provided in the middle of the workbench (1), and a clamp (11) is located in the through slot. The clamp (11) is L-shaped and comprises a baffle (111) and a support plate (112). The upper surface of the support plate (112) is on the same plane as the upper surface of the workbench (1).

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