Hot-rolled bar clamping device

Abstract

The utility model provides a hot-rolled bar clamping device, which relates to the technical field of bar processing and comprises a bottom frame, lower clamping seats are movably mounted on two sides of the upper end of the bottom frame, upper clamping seats are movably mounted at the upper ends of the two lower clamping seats, and a space for clamping workpieces is formed between the two lower clamping seats and the two upper clamping seats. Guide mechanisms are arranged between the two lower clamping seats and the two upper clamping seats; supporting plates are fixedly installed on the two sides of the bottom end of the bottom frame, and clamping mechanisms are arranged in the middles of the two supporting plates and matched with the two lower clamping bases. A transmission mechanism is arranged on the inner side of the bottom end of the lower clamping base, and traction mechanisms connected with the upper clamping base are arranged on the two sides of the transmission mechanism. The clamping device can realize clamping of steel needing to be ground, reduces potential safety hazards of steel grinding, reduces labor intensity of workers, and improves steel defect grinding quality at the same time.

Description

Technical Field

[0001] This utility model relates to the field of bar processing technology, and in particular to a clamping device for hot-rolled bars. Background Technology

[0002] With fierce competition in the steel market and customers' increasingly demanding requirements for steel quality, surface defects such as scratches, roll marks, dents, ear-like defects, and cracks may occasionally occur in steel during the production process. To address these defects, it is necessary to perform individual grinding treatment on the surface of each steel piece.

[0003] The existing technology involves manually grinding steel on a platform, which has many drawbacks, such as high operational safety risks, high labor intensity for workers, and incomplete defect handling. Utility Model Content

[0004] To address the aforementioned technical problems, a hot-rolled bar clamping device is provided, which facilitates the treatment of surface defects in steel and reduces safety hazards for workers. The technical means employed in this invention are as follows:

[0005] A hot-rolled bar clamping device includes: a base frame, with lower clamping seats movably installed on both sides of the upper end of the base frame, and upper clamping seats movably installed on the upper ends of the two lower clamping seats, forming a space for clamping workpieces between the two lower clamping seats and the two upper clamping seats, and a guide mechanism is provided between the two lower clamping seats and the two upper clamping seats.

[0006] Support plates are fixedly installed on both sides of the bottom end of the base frame. A clamping mechanism is provided in the middle of the two support plates. The clamping mechanism cooperates with two lower clamps to enable the two lower clamps to slide closer or further apart along the upper end of the base frame.

[0007] A transmission mechanism is provided on the inner side of the bottom end of the lower clamping seat. Pulling mechanisms connected to the upper clamping seat are provided on both sides of the transmission mechanism. The pulling mechanisms cooperate with the guiding mechanism to realize the up and down movement of the upper clamping seat relative to the lower clamping seat.

[0008] Furthermore, the clamping mechanism includes a bidirectional screw, which is movably installed between the middle of two support plates. A handwheel is fixedly installed on the right end of the bidirectional screw, which passes through the right support plate. Both ends of the bidirectional screw are threadedly connected to movable blocks. The two movable blocks move towards each other, and the top ends of the two movable blocks are respectively fixedly connected to the bottom middle of the two lower clamps. The two movable blocks are slidably connected to the base frame.

[0009] Furthermore, guide grooves are provided at both ends of the middle part of the base frame, and the two movable blocks are slidably connected to the two guide grooves respectively.

[0010] Furthermore, the transmission mechanism includes a rectangular sleeve, with the rectangular sleeve movably installed inside the bottom end of the lower clamp on the left side, and a rectangular rod movably installed inside the bottom end of the lower clamp on the right side. The left side of the rectangular rod is inserted into the rectangular sleeve and movably connected to the rectangular sleeve.

[0011] Furthermore, each of the two lower clamps has an installation groove on its lower inner side, and the rectangular sleeve and the rectangular rod are movably connected to the two side installation grooves through bearings.

[0012] Furthermore, the pulling mechanism includes a lead screw, and the lead screw is fixedly installed on the opposite side of the rectangular sleeve and the rectangular rod. A handwheel is fixedly installed on the right end of the lead screw on the right side. A movable block is threadedly connected to the outside of both lead screws. A connecting rod is movably installed on the upper end of the movable block. The other ends of the two connecting rods are movably connected to the outer middle of the two upper clamps respectively.

[0013] Furthermore, the guiding mechanism includes a rod groove opened inside the top of the lower clamp, a spring fixedly installed inside the lower part of the rod groove, a pressure rod fixedly connected to the other end of the spring, the top end of the pressure rod fixedly connected to the middle of the bottom end of the upper clamp, and the pressure rod slides up and down along the rod groove.

[0014] Furthermore, a guide groove is provided annularly on the inner wall of the rod groove, and a guide ring that is slidably connected to the guide groove is fixedly connected to the outer wall of the bottom end of the pressure rod.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. The hot-rolled bar clamping device provided by this utility model achieves rapid adjustment and precise control of the lower clamp and the upper clamp through the combined use of a bidirectional screw, a lead screw, a first handwheel, and a second handwheel. The operator only needs to rotate the handwheel to complete the clamping and releasing operations to clamp the steel that needs to be ground, reduce the safety hazards of grinding steel, reduce the labor intensity of workers, and improve the quality of steel defect grinding.

[0017] 2. The hot-rolled bar clamping device provided by this utility model can flexibly adjust the position of the lower clamp through the cooperation of the bidirectional screw and the movable block, thereby adapting to hot-rolled bars of different sizes. This not only expands the applicability of the device, but also reduces the time and cost of replacing or adjusting the equipment, improves the flexibility and versatility of steel defect grinding, and meets the diverse needs of steel defect grinding.

[0018] Based on the above reasons, this utility model can be widely promoted in fields such as workpiece clamping. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall main structure of this utility model.

[0021] Figure 2 For the present utility model Figure 1 Enlarged diagram of point A in the middle.

[0022] Figure 3 For the present utility model Figure 1 Enlarged diagram of point B in the middle.

[0023] Figure 4 For the present utility model Figure 1 Enlarged diagram of point C in the middle.

[0024] In the diagram: 1. Base frame; 2. Lower clamp; 3. Upper clamp; 4. Support plate; 5. Double-acting screw; 6. Handwheel 1; 7. Movable block 1; 8. Guide groove; 9. Rectangular sleeve; 10. Rectangular rod; 11. Lead screw; 12. Handwheel 2; 13. Movable block 2; 14. Connecting rod; 15. Mounting groove; 16. Bearing; 17. Rod groove; 18. Spring; 19. Pressure rod; 20. Guide groove; 21. Guide ring. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] like Figure 1 and Figure 2As shown, this utility model provides a hot-rolled bar clamping device, including a base frame 1. Lower clamping seats 2 are movably mounted on both sides of the upper end of the base frame 1. Upper clamping seats 3 are movably mounted on the upper ends of the two lower clamping seats 2. A space for clamping the workpiece is formed between the two lower clamping seats 2 and the two upper clamping seats 3. A guide mechanism is provided between the lower clamping seats 2 and the upper clamping seats 3 to guide the vertical movement of the upper clamping seats 3. The guide mechanism includes a rod groove 17. A rod groove 17 is formed inside the top end of each lower clamping seat 2. Inside the rod groove 17... A spring 18 is fixedly installed on the upper clamp 3, providing elastic support to facilitate the reset of the pressure rod 19. The other end of the spring 18 is fixedly connected to the pressure rod 19, and the top end of the pressure rod 19 is fixedly connected to the middle of the bottom end of the upper clamp 3. A guide groove 20 is provided in annularly on the inner wall of the rod groove 17. A guide ring 21 is fixedly connected to the outer wall of the bottom end of the pressure rod 19 and is slidably connected to the guide groove 20. The guide ring 21 slides in the guide groove 20 to ensure the linear movement of the pressure rod 19, avoid skewing, and ensure the stability and accuracy of the clamping process.

[0027] like Figure 1 , Figure 3 and Figure 4As shown, support plates 4 are fixedly installed on both sides of the bottom end of the base frame 1. A clamping mechanism is provided in the middle of the two support plates 4. The clamping mechanism cooperates with the two lower clamps 2 to realize the sliding of the two lower clamps 2 along the upper end of the base frame 1. The clamping mechanism includes a bidirectional screw 5. The bidirectional screw 5 is movably installed between the middle of the two support plates 4. The right end of the bidirectional screw 5 passes through the right support plate 4 and is fixedly installed with a handwheel 6. Movable blocks 7 are threaded to both ends of the bidirectional screw 5. The top ends of the two movable blocks 7 are fixedly connected to the middle of the bottom end of the two lower clamps 2. Guide grooves 8 are opened at both ends of the middle of the base frame 1 to slide and connect with the movable blocks 7. The two movable blocks 7 move towards each other. The two movable blocks 7 move closer or further away under the action of the bidirectional screw 5, thereby realizing the two lower clamps 2 moving closer or further away. A transmission mechanism is provided on the inner side of the bottom end of the lower clamp 2. The transmission mechanism includes a rectangular sleeve 9. The rectangular sleeve 9 is movably installed inside the bottom end of the left lower clamp 2, and a rectangular rod 10 is movably installed inside the bottom end of the right lower clamp 2. The left side of the rectangular rod 10 is inserted into the rectangular sleeve 9 and is movably connected to the rectangular sleeve 9. An installation groove 15 is opened on the lower side of the opposite side of the two lower clamps 2. The rectangular sleeve 9 and the rectangular rod 10 are movably connected to the two side installation grooves 15 through bearings 16. The transmission mechanism is equipped with a pulling mechanism on both sides that cooperates with the upper clamp 3. The pulling mechanism cooperates with the guide mechanism to realize the up and down movement of the upper clamp 3 relative to the lower clamp 2. The pulling mechanism includes a lead screw 11. The lead screw 11 is fixedly installed on the outside of the opposite end of the rectangular sleeve 9 and the rectangular rod 10. A handwheel 12 is fixedly installed on the right end of the right lead screw 11. The two lead screws 11 are threadedly connected to the outside of the movable blocks 13. The movable blocks 13 are located on the outside of the lower clamp 2. The upper end of the movable blocks 13 is movably installed with connecting rods 14. The other ends of the two connecting rods 14 are movably connected to the middle of the outer side of the two upper clamps 3. The movable blocks 13 can be hinged to the connecting rods 14, and the connecting rods 14 can be hinged to the outside of the upper clamp 3.

[0028] In this embodiment, the position of the lower clamp 2 can be flexibly adjusted by the cooperation of the bidirectional screw 5 and the movable block 7, thereby adapting to hot-rolled bars of different sizes. This not only expands the applicability of the device, but also reduces the time and cost of replacing or adjusting the equipment, improves the flexibility and versatility of the production line, and meets diverse production needs.

[0029] In this embodiment, the combined use of the bidirectional screw 5, lead screw 11, handwheel 6, and handwheel 12 enables rapid adjustment and precise control of the lower clamp 2 and upper clamp 3. Operators only need to rotate the handwheel to complete the clamping and releasing operations, eliminating the need for complicated operating steps, significantly simplifying the operation process and improving production efficiency.

[0030] Working principle: During installation, first, the base frame 1 is placed securely on the workbench. Then, by rotating the double-acting screw 5 through handwheel 6, the movable block 7 slides within the guide groove 8, thereby adjusting the position of the lower clamp 2 to accommodate hot-rolled bars of different sizes. After the hot-rolled bar is placed on the lower clamp 2, the lead screw 11 is rotated through handwheel 12. The two lead screws 11 are connected by a rectangular sleeve 9 and a rectangular rod 10, which drives the movable block 13 to move. The movable block 13 pulls the upper clamp 3 downward through the connecting rod 14, clamping the hot-rolled bar together with the lower clamp 2. When it is necessary to release the hot-rolled bar, the handwheel 12 is rotated in the opposite direction to move the upper clamp 3 upward, releasing the clamping force. At the same time, the double-acting screw 5 is adjusted through handwheel 6 to return the lower clamp 2 to its initial position, preparing for the next clamping operation.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A hot-rolled bar clamping device, characterized in that Include: The lower end of the bottom frame (1) is fixedly installed with a support plate (4) on both sides, and a clamping mechanism is arranged in the middle of the two support plates (4). The clamping mechanism cooperates with the two lower clamping seats (2) to realize the sliding of the two lower clamping seats (2) along the upper end of the bottom frame (1). The bottom end of the lower clamping seat (2) is provided with a transmission mechanism, and the two sides of the transmission mechanism are provided with a pulling mechanism connected with the upper clamping seat (3). The pulling mechanism cooperates with the guide mechanism to realize the up-down movement of the upper clamping seat (3) relative to the lower clamping seat (2). The clamping mechanism includes a bidirectional screw (5), which is movably installed between the middle portions of the two support plates (4). The right end of the bidirectional screw (5) penetrates the right end of the right support plate (4) and is fixedly installed with a hand wheel (6). The two ends of the bidirectional screw (5) are both threadedly connected with a movable block (7). The two movable blocks (7) move towards each other, and the top ends of the two movable blocks (7) are respectively fixedly connected to the bottom middle portions of the two lower clamping seats (2). The two movable blocks (7) are slidably connected with the bottom frame (1).

2. The hot-rolled bar clamping device according to claim 1, characterized in that The middle portions of the bottom frame (1) are both provided with a guide groove (8), and the two movable blocks (7) are respectively slidably connected with the two guide grooves (8).

3. The hot-rolled bar clamping device according to claim 2, characterized in that The transmission mechanism includes a rectangular sleeve (9), which is movably installed inside the bottom end of the left lower clamping seat (2). A rectangular rod (10) is movably installed inside the bottom end of the right lower clamping seat (2). The left side of the rectangular rod (10) is inserted into the rectangular sleeve (9) and movably connected with the rectangular sleeve (9).

4. The hot-rolled bar clamping device according to claim 1, characterized in that The opposite sides of the two lower clamping seats (2) are both provided with an installation groove (15) below the inside. The rectangular sleeve (9) and the rectangular rod (10) are movably connected with the two installation grooves (15) through bearings (16).

5. The hot-rolled bar clamping device according to claim 4, characterized in that The pulling mechanism includes a lead screw (11), which is fixedly installed outside the opposite ends of the rectangular sleeve (9) and the rectangular rod (10). The right end of the right lead screw (11) is fixedly installed with a hand wheel (12). The outer sides of the two lead screws (11) are both threadedly connected with a movable block (13). The upper end of the movable block (13) is movably installed with a connecting rod (14). The other ends of the two connecting rods (14) are respectively movably connected with the outer middle portions of the two upper clamping seats (3).

6. The hot-rolled bar clamping device according to claim 4, characterized in that ​ 7. The hot-rolled bar clamping device according to claim 1, characterized in that The guiding mechanism comprises a rod groove (17) formed in the top end of the lower clamp base (2), a spring (18) fixedly installed below the inside of the rod groove (17), a pressing rod (19) fixedly connected to the other end of the spring (18), and the top end of the pressing rod (19) is fixedly connected to the bottom middle part of the upper clamp base (3), and the pressing rod (19) slides up and down along the rod groove (17).

8. The hot-rolled bar clamping device according to claim 7, characterized in that An annular guiding groove (20) is arranged on the inner wall of the rod groove (17), and a guiding ring (21) in sliding connection with the guiding groove (20) is fixedly connected to the bottom end outer wall of the pressing rod (19).

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