Clamp for correcting deformation of round bar
By using a round bar straightening fixture guided by a guide rod and a linear bearing, combined with a hydraulic rod to drive the upper straightening plate to move up and down, the problem of low straightening efficiency in existing equipment is solved, and efficient and precise round bar straightening is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-03-10
AI Technical Summary
Existing round bar straightening equipment is inefficient during the straightening process, cannot accurately clamp the bar, and requires multiple applications of pressure to complete the straightening, which affects the straightening efficiency.
A circular bar straightening deformation fixture was designed, which uses guide rods and linear bearings for guidance, and combines hydraulic rods to drive the upper straightening plate to move up and down. The upper and lower straightening plates cooperate with the straightening grooves of the circular bar to achieve efficient straightening.
It improves correction efficiency, ensures the accuracy and stability of correction, and reduces the need for multiple pressure applications.
Smart Images

Figure CN223981000U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of deformation correction clamp, specifically relates to a round bar correction deformation clamp. BACKGROUND
[0002] In the round bar heat treatment stage, the uneven temperature distribution in the furnace leads to the local expansion difference of the round bar, and the inconsistent contraction when cooling (such as rapid cooling of the surface during quenching, and lagging contraction of the core), thereby causing the round bar to appear bending, and in order to ensure the normal use of the round bar, the round bar needs to be deformed and corrected through a correction equipment.
[0003] At present, the Chinese patent with the publication number CN213613441U discloses a steel column correction machine, which comprises an operating table, a machine box and a second pulley, the bottom of the operating table is provided with a support frame, the support frame is fixedly connected with the bottom of the operating table in a welded manner, the bottom of the support frame is provided with a foot pedal at the middle position, the foot pedal is fixedly connected with the support frame in a welded manner, the bottom end of the foot pedal is connected with the machine box through wires, and the top of the operating table is provided with a groove. UTILITY MODEL CONTENTS
[0004] The utility model aims at overcoming the defects of the prior art and providing a round bar correction deformation clamp with high correction efficiency.
[0005] The technical scheme of the utility model is as follows:
[0006] A round bar correction deformation clamp, comprising a top plate and a bottom plate, the top plate and the bottom plate are connected through a plurality of support columns, the top plate bottom is fixed with a hydraulic rod, the hydraulic rod bottom is detachably connected with an upper correction plate, the top plate bottom is further provided with a plurality of linear bearings, the linear bearings are inserted with guide rods, the top plate is provided with holes for the guide rods to pass through, the guide rod bottom is inserted with a plug-in seat fixed on the upper correction plate, the plug-in seat is magnetically attracted to the guide rod, the bottom plate top is detachably connected with a lower correction plate, and the lower correction plate and the upper correction plate are both provided with upper and lower corresponding correction grooves.
[0007] Further, the hydraulic rod bottom is fixed with a hinge seat, a connecting seat is inserted into the hinge seat, the connecting seat and the hinge seat are both provided with rectangular holes, an elliptical cylinder is inserted into the rectangular holes, and the elliptical cylinder is hingedly connected with a handle.
[0008] Further, the lower end of the hydraulic rod is fixed with a placing plate, the placing plate is provided with a U-shaped placing groove, and the handle is inserted into the placing groove in an interference fit.
[0009] Further, the top of the plug-in base is coaxially fixed with a plug-in column, the plug-in column is inserted into the guide rod, the top of the plug-in base is provided with a plurality of magnets in an annular array, and the bottom of the guide rod is provided with a plurality of magnetic plates in an annular array.
[0010] Further, the guide rod and the plug-in base are provided with indication arrows.
[0011] Further, the top of the bottom plate is fixed with a positioning plate, the positioning plate is provided with a stepped groove, the stepped groove is provided with a positioning hole, the bottom of the lower straightening plate is stepped, and the bottom of the lower straightening plate is fixed with a positioning column which is inserted into the positioning hole.
[0012] Compared with the prior art, the utility model has the advantages that:
[0013] 1. The utility model realizes the up-down displacement guidance of the upper straightening plate through the setting of the guide rod and the linear bearing, guarantees straightening, drives the up-down displacement of the upper straightening plate through the hydraulic rod, and realizes the straightening of the round bar through the upper straightening plate and the lower straightening plate, guaranteeing straightening efficiency.
[0014] In summary, the utility model has the advantages of high straightening efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the whole schematic view of the utility model;
[0016] Figure 2 It is the A part enlarged structure schematic view of the utility model; Figure 1
[0017] Figure 3 It is the structure schematic view of the connecting seat of the utility model; Figure 2
[0018] Figure 4 It is the installation structure schematic view of the lower straightening plate of the utility model; Figure 1
[0019] Figure 5 It is the structure schematic view of the plug-in base of the utility model; Figure 1
[0020] Figure 6 It is the guide rod down view structure schematic view of the utility model; Figure 1
[0021] Figure 7 It is the top view structure schematic view of the utility model. Figure 5
[0022] In the diagram, 1. Top plate; 2. Linear bearing; 3. Support column; 4. Base plate; 5. Correction groove; 6. Lower correction plate; 61. Positioning column; 7. Positioning plate; 8. Upper correction plate; 81. Connecting seat; 82. Placement plate; 9. Insertion seat; 91. Insertion column; 92. Indicator arrow; 93. Magnet; 10. Guide rod; 101. Magnetic suction plate; 11. Hydraulic rod; 111. Hinge seat; 112. Elliptical cylinder; 113. Handle. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] like Figures 1 to 7 As shown, a round bar straightening deformation fixture includes a top plate 1 and a bottom plate 4. The top plate 1 and the bottom plate 4 are connected by multiple support columns 3. The support columns 3 are fixed to the bottom plate 4 and the top plate 1 by bolts. A hydraulic rod 11 is fixed at the bottom of the top plate 1. An upper straightening plate 8 is detachably connected to the bottom of the hydraulic rod 11. The top plate 1 has multiple insertion holes. A linear bearing 2 fixed to the bottom of the top plate 1 is coaxially arranged in the insertion holes. A guide rod 10 is inserted into the linear bearing 2. An insertion seat 9 fixed on the upper straightening plate 8 is inserted into the bottom of the guide rod 10. The insertion seat 9 and the guide rod 10 are magnetically attracted. A lower straightening plate 6 is detachably connected to the top of the bottom plate 4. Both the lower straightening plate 6 and the upper straightening plate 8 have corresponding upper and lower straightening grooves 5.
[0025] The upper straightening plate 8 and the lower straightening plate 6 are each provided with multiple sets, and each set is provided with different straightening grooves 5 according to the different diameters of the round bars;
[0026] In use, the upper straightening plate 8 is fixed on the hydraulic rod 11 according to the diameter of the round bar, and then fixed to the guide rod 10 through the plug-in seat 9. Under the action of magnetic force, the guide rod 10 is moved up and down to ensure guidance. When compression straightening is required, the round bar is placed in the straightening groove 5 of the lower straightening plate 6. Then the hydraulic rod 11 drives the upper straightening plate 8 to move down, and the round bar is straightened under the action of the straightening groove 5.
[0027] The hydraulic rod 11 can also be replaced with other devices that can achieve linear displacement, such as a cylinder or an electric telescopic rod.
[0028] In this embodiment, a hinge seat 111 is fixed at the bottom of the hydraulic rod 11, and a connecting seat 81 is inserted into the hinge seat 111. Both the connecting seat 81 and the hinge seat 111 have rectangular holes, and an elliptical cylinder 112 is inserted into the rectangular holes. The elliptical cylinder 112 is hinged to a handle 113.
[0029] When in use, insert the connecting seat 81 into the hinge seat 111, and then insert the elliptical cylinder 112 into the rectangular hole. Due to the extension length of the hydraulic rod 11, sometimes the hydraulic rod 11 may extend too short, causing the two rectangular holes to be partially misaligned. At this time, rotate the elliptical cylinder 112, and under the action of the elliptical cylinder 112, align the connecting seat 81 with the rectangular hole on the hinge seat 111 to ensure the stability of the connection.
[0030] In this embodiment, a placement plate 82 is fixed to the lower end of the hydraulic rod 11. The placement plate 82 has a U-shaped placement groove, and the handle 113 is interference-fitted into the placement groove.
[0031] During use, the handle 113 is fixed by the placement plate 82 to prevent the elliptical cylinder 112 from rotating during use.
[0032] In this embodiment, a plug post 91 is coaxially fixed at the top of the plug-in base 9, the plug post 91 is inserted into the guide rod 10, a plurality of magnets 93 arranged in a ring array are embedded and fixed at the top of the plug-in base 9, and a plurality of magnetic suction plates 101 arranged in a ring array are embedded and fixed at the bottom of the guide rod 10.
[0033] In use, the magnet 93 and the magnetic plate 101 are set to ensure the synchronous movement of the guide rod 10 and the plug seat 9, and the upper straightening plate 8 is guided to move up and down under the action of the plug post 91, the plug seat 9 and the guide rod 10, so as to ensure the straightening.
[0034] When replacement is needed, rotate the guide rod 10 to misalign the magnet 93 with the magnetic suction plate 101, then move the guide rod 10 upward and remove the upper correction plate 8. After that, place the upper correction plate 8 to be replaced in the corresponding position, insert the plug post 91 into the guide rod 10, and rotate the guide rod 10 so that the magnet 93 and the magnetic suction plate 101 can attract each other.
[0035] In this embodiment, both the guide rod 10 and the plug-in seat 9 are glued or sprayed with indicator arrows 92. During use, the indicator arrows 92 ensure that the position of the magnet 93 corresponds to that of the magnetic plate 101, thus ensuring alignment.
[0036] In this embodiment, a positioning plate 7 is fixed on the top of the base plate 4. The positioning plate 7 has a stepped groove and a positioning hole in the stepped groove. The bottom of the lower correction plate 6 is stepped and a positioning post 61 inserted into the positioning hole is fixed. The positioning post 61 and the positioning hole facilitate the installation and positioning of the lower correction plate 6 and make it easy to disassemble and assemble the lower correction plate 6.
[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features; any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A round bar straightening deformation clamp, comprising a top plate and a bottom plate connected by a plurality of support columns, a hydraulic rod is fixed at the bottom of the top plate, characterized in that: The hydraulic rod bottom is detachably connected with an upper correction plate, the top plate bottom is further provided with a plurality of linear bearings, the linear bearings are inserted with guide rods, the top plate is provided with holes for the guide rods to pass through, the guide rod bottom is inserted with a plug-in seat fixed on the upper correction plate, the plug-in seat is magnetically attracted to the guide rod, the bottom plate top is detachably connected with a lower correction plate, the lower correction plate and the upper correction plate are both provided with corresponding correction grooves.
2. The round bar straightening deformation clamp according to claim 1, characterized in that: The hydraulic rod bottom is fixed with a hinged seat, the hinged seat is inserted with a connecting seat, the connecting seat and the hinged seat are both provided with rectangular holes, the rectangular holes are inserted with elliptical cylinders, and the elliptical cylinders are hinged with handles.
3. The round bar straightening deformation clamp according to claim 2, characterized in that: The hydraulic rod lower end is fixed with a placing plate, the placing plate is provided with a U-shaped placing groove, and the handle is inserted in the placing groove with interference.
4. The round bar straightening deformation clamp of claim 1, wherein: The plug-in seat top is coaxially fixed with a plug-in column, the plug-in column is inserted in the guide rod, the plug-in seat top is annularly arranged with a plurality of magnets, and the guide rod bottom is annularly arranged with a plurality of magnetic plates.
5. The round bar straightening deformation clamp of claim 4, wherein: The guide rod and the plug-in seat are both provided with indicating arrows.
6. The round bar straightening deformation clamp of claim 1, wherein: The bottom plate top is fixed with a positioning plate, the positioning plate is provided with a stepped groove and a positioning hole in the stepped groove, the lower correction plate bottom is stepped and fixed with a positioning column inserted in the positioning hole.
Citation Information
Patent Citations
Steel column straightening machine
CN213613441U