Downward pressing type straightening assembly used in straightening machine

Abstract

The downward pressing type straightening assembly used in the straightening machine comprises a downward pressing device and a workpiece containing device which are arranged on a straightening machine body, and the workpiece containing device is arranged below the downward pressing device. The downward pressing device comprises a mounting seat mounted on the straightening machine main body, and a downward pressing driving mechanism is arranged in the mounting seat; vertically-through guide holes are formed in the two sides of the mounting base, guide columns capable of vertically moving are arranged in the guide holes, and the lower ends of the guide columns are fixed to the lower push plate; a telescopic shaft of the pressing driving mechanism extends downwards and is fixed on the lower push plate; an upper pressing roller is arranged on the lower portion of the lower push plate, and an upper pressing wheel is arranged on the upper pressing roller. A rotatable lower pressing roller is arranged on the workpiece placing device, and a plurality of lower pressing wheels are arranged on the lower pressing roller; after the downward pressing device moves downwards, a workpiece is placed in the space between the upper pressing wheel and the lower pressing wheel, and the workpiece is straightened. According to the downward pressing type straightening assembly, the guiding and positioning performance of the downward pressing structure is good, the straightening precision is high, the overall structure is compact, and debugging and maintenance are convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to straightening machine technical field, and specifically relates to a down -pressing type straightening assembly for straightening machine. BACKGROUND

[0002] In the field of mechanical manufacturing and processing, due to the plastic deformation of metal material, the internal stress generated in the heat treatment process and various factors in transportation and operation, metal parts often appear bending, distortion and other deformation, which affects the appearance of workpiece, and also has adverse effects on subsequent processing and use performance. Therefore, as an important processing equipment, straightening machine is widely used in the straightening operation of various metal products, for example, used for straightening workpiece products such as metal profiles, bars, pipes and wires.

[0003] In the prior art, the straightening machine is generally composed of a rack, straightening rollers arranged in upper and lower positions, a driving device and a control system. The working principle is that the driving device drives the straightening rollers to rotate, and the friction and pressure between the straightening rollers and the metal parts make the metal parts produce plastic bending deformation when passing through the straightening rollers, so as to straighten the originally crooked metal parts.

[0004] In the traditional straightening machine, the driving device is complex, the assembly is cumbersome, the debugging operation is troublesome, and the alignment accuracy of the upper and lower positions is poor. Therefore, the down -pressing type straightening assembly in the straightening machine is further designed and improved. CONTENT OF THE UTILITY MODEL

[0005] In view of the deficiencies in the prior art, the utility model provides a down -pressing type straightening assembly for straightening machine, which has good guiding positioning of the down -pressing structure, high straightening accuracy, compact overall structure and convenient debugging and maintenance.

[0006] The utility model is solved by the following technical scheme.

[0007] The down -pressing type straightening assembly for straightening machine comprises a down -pressing device and a workpiece placing device arranged on the main body of the straightening machine, and the workpiece placing device is arranged below the down -pressing device. The down -pressing device comprises a mounting seat mounted on the main body of the straightening machine, and a down -pressing driving mechanism is arranged in the mounting seat. Vertical guide holes are arranged on the two sides of the mounting seat, and vertical movable guide columns are arranged in the guide holes. The lower end of the guide column is fixed on the lower push plate. The telescopic shaft of the down -pressing driving mechanism extends downward and is fixed on the lower push plate. An upper pressing roller is arranged on the lower part of the lower push plate, and an upper pressing wheel is arranged on the upper pressing roller. A rotatable lower pressing roller is arranged on the workpiece placing device, and a plurality of lower pressing wheels are arranged on the lower pressing roller. After the down -pressing device moves downward, the space between the upper pressing wheel and the lower pressing wheel is used to place the workpiece and perform straightening operation on the workpiece.

[0008] The straightening assembly in the application adopts a downward pressing device in the vertical direction to cooperate with the straightening operation, and through the guide column structure and the downward pressing driving mechanism, the accuracy of the downward pressing operation is ensured to be high, the positioning is accurate, and the straightening operation on the workpiece can be more efficiently performed. Specifically, during work, the telescopic shaft on the downward pressing driving mechanism drives the up-down movement of the downward pushing plate, the downward pushing plate moves downward to drive the downward movement of the upper pressing roller and the upper pressing wheel thereon, and after moving downward to the appropriate position, the downward pressing roller and the downward pressing wheel thereon cooperate to perform the straightening operation on the workpiece.

[0009] In a preferred embodiment, the upper end of the guide column is fixed to the upper positioning block, which can ensure the stability of the overall structure and good guidance during up-down movement.

[0010] In a preferred embodiment, the lower surface of the downward pushing plate is provided with symmetrically arranged upper pressing roller mounting seats, and the upper pressing roller is rotatably arranged between the two upper pressing roller mounting seats. The assembly structure is compact, and is convenient for installation, disassembly and maintenance.

[0011] In a preferred embodiment, the workpiece placing device includes two symmetrically arranged lower bases, and two rotatable downward pressing rollers are arranged in parallel between the two lower bases. Each downward pressing roller is provided with a downward pressing wheel for cooperating with the upper pressing wheel to perform the straightening operation.

[0012] In a preferred embodiment, one side of the downward pressing roller protrudes from the lower base, and a sprocket wheel is arranged on the protruding end. A chain is further arranged to drive the rotation of the sprocket wheel and the rotation of the downward pressing roller. The sprocket wheel driving structure is arranged on the straightening machine, which is a conventional structure in the field and ensures the normal operation of the straightening operation.

[0013] In a preferred embodiment, one end of the upper pressing roller is provided with an upper pressing roller sprocket wheel, and a movable sprocket wheel is further arranged. The upper pressing roller sprocket wheel, the movable sprocket wheel and the sprocket wheel are driven to rotate by the same chain. In this structure, the sprocket wheel driving structure can simultaneously drive the rotation of the downward pressing roller and the upper pressing roller, realizing synchronous rotation. This structure can be well applied to the straightening of large products. For large products, only the rotation of the downward pressing roller and the friction force can cause the large product to be unable to rotate, so the upper pressing roller needs to be driven to rotate synchronously. In this structure, the position of the movable sprocket wheel is adjustable, which facilitates the position movement during the downward pressing process to ensure that the sprocket wheel driving structure can always effectively mesh and transmit.

[0014] In a preferred embodiment, the movable sprocket wheel is rotatably arranged on a sliding block, the sliding block is movably arranged on a sliding rail, the sliding rail is arranged on a rack, and a telescopic driving mechanism is further arranged on the rack. The telescopic shaft of the telescopic driving mechanism drives the movement of the sliding block on the sliding rail. The sliding block can reciprocate according to the set program to cooperate with the downward pressing action of the upper pressing roller, ensuring the effective operation of the sprocket wheel driving.

[0015] In a preferred embodiment, the outer wall of the lower pressing roller is provided with an axially arranged positioning transverse groove, one side of the lower pressing wheel is provided with a protruding convex disc, the lower pressing wheel is provided with a central hole penetrating the lower pressing roller, the convex disc is provided with a positioning hole penetrating the central hole, and the positioning of the convex disc and the lower pressing roller can be realized by positioning the workpiece through the positioning hole and then positioning it on the positioning transverse groove. The positioning workpiece can be a pin, a pin column, a bolt or the like, which is used for positioning the placing disc on the placing roller and positioning the lower pressing wheel on the lower pressing roller, and the position can be adjusted as needed.

[0016] In a preferred embodiment, the upper pressing roller also has a transverse groove, the upper pressing wheel also has a convex disc and a positioning hole structure, and the positioning and position adjustment can be facilitated by using a positioning workpiece.

[0017] In a preferred embodiment, the lower pressing driving mechanism is an electric cylinder, an oil cylinder or a servo motor.

[0018] Compared with the prior art, the utility model has the advantages that a lower pressing straightening assembly for a straightening machine is provided, the guiding and positioning of the lower pressing structure are good, the straightening precision is high, the overall structure is compact, and debugging and maintenance are facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a side view of the lower pressing straightening assembly in the utility model.

[0020] Figure 2 It is a perspective view of the lower pressing straightening assembly in the utility model. Figure 1 .

[0021] Figure 3 It is a perspective view of the lower pressing straightening assembly in the utility model. Figure 2 .

[0022] Figure 4 It is a perspective view of the lower pressing device in the utility model.

[0023] Figure 5 It is a perspective view of the workpiece placing device in the utility model.

[0024] Figure 6 It is a perspective view of the lower pushing plate in the utility model. Figure 1 .

[0025] Figure 7 It is a perspective view of the lower pushing plate in the utility model. Figure 2 .

[0026] Figure 8 It is a perspective view of the lower pressing roller in the utility model.

[0027] Figure 9The utility model discloses a lower pressure wheel's perspective drawing in the utility model.

[0028] Figure 10 The utility model discloses a lower pressure type straightening assembly's perspective drawing in another embodiment in the utility model.

[0029] Figure 11 For Figure 10 The utility model discloses a movable sprocket wheel structure's perspective drawing in the utility model. Specific embodiments

[0030] The utility model will be described in further detail below with the specific embodiments and the accompanying drawings.

[0031] In the following embodiments, the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout, and the following embodiments described by referring to the drawings are exemplary, for explaining the utility model only, and cannot be understood as the limitation of the utility model.

[0032] In the description of the utility model, it needs to be understood that the terms: center, longitudinal, transverse, length, width, thickness, upper, lower, front, rear, left, right, vertical, horizontal, top, bottom, inner, outer, clockwise, counterclockwise and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as the limitation of the utility model. In addition, the terms: first, second and the like are only for the description purpose, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the shown technical features. In the description of the utility model, unless otherwise explicitly specified and limited, the terms: mounting, connecting, connecting and the like should be understood in a broad sense, and the person skilled in the art can understand the specific meaning of the above terms in the application according to the specific circumstances.

[0033] Referring to Figures 1 to 9 , a lower pressure type straightening assembly in a straightening machine is disclosed in the utility model, which comprises a lower pressure device 2 arranged on the main body of the straightening machine and a workpiece placing device 1, and the workpiece placing device 1 is arranged below the lower pressure device 2. The lower pressure device 2 comprises a mounting seat 22 mounted on the main body of the straightening machine, and a lower pressure driving mechanism 25 is arranged in the mounting seat 22. Vertical guide holes are arranged on the two sides of the mounting seat 22, and a vertically movable guide column 26 is arranged in the guide holes. The lower end of the guide column 26 is fixed on a lower push plate 23. The telescopic shaft of the lower pressure driving mechanism 25 extends downward and is fixed on the lower push plate 23. An upper pressure roller 27 is arranged on the lower part of the lower push plate 23, and an upper pressure wheel 28 is arranged on the upper pressure roller 27. A rotatable lower pressure roller 17 is arranged on the workpiece placing device 1, and a plurality of lower pressure wheels 18 are arranged on the lower pressure roller 17. After the lower pressure device 2 moves downward, the space between the upper pressure wheel 28 and the lower pressure wheel 18 is used to place the workpiece and perform straightening operation on the workpiece.

[0034] Specifically, from Figure 2 and Figure 3 It can be seen in the application, the upper end of the guide column 26 is fixed to the upper positioning block 21, which can ensure the stability of the overall structure, and the guiding property is good when moving up and down. The lower surface of the lower push plate 23 is provided with two upper compression roller mounting seats 24 arranged symmetrically, and the upper compression roller 27 is rotatably arranged between the two upper compression roller mounting seats 24. The assembly structure is compact, and it is convenient to install, disassemble and maintain.

[0035] From the attached Figure 5 It can be seen in the application, the workpiece placing device 1 includes two lower bases 11 arranged symmetrically, and two rotatable lower compression rollers 17 are arranged in parallel between the two lower bases 11. Each lower compression roller 17 is provided with a lower compression wheel 18, which is used for cooperating with the upper compression wheel 28 to perform straightening operation. In addition, one side of the lower compression roller 17 extends out of the lower base 11, and a sprocket plate 19 is arranged on the extended end portion. A chain is further arranged to drive the sprocket plate 19 to rotate and drive the lower compression roller 17 to rotate. The sprocket drive structure is arranged on the straightening machine, which is a conventional structure in the field and ensures the normal operation of the straightening operation. The specific sprocket drive structure is that the chain is sleeved on the sprocket plate 19, and a driving disc is further arranged to drive the chain to rotate and drive the sprocket plate 19 to rotate. The driving disc is driven to rotate by a motor (preferably a speed reducer motor), which ensures the normal operation of the straightening operation.

[0036] From Figure 6 and Figure 7 It can be seen that the lower push plate 23 has a structure of protruding in the middle, which has high structural strength. Meanwhile, the lower push plate 23 is provided with side mounting holes 236 on the two sides of the upper surface thereof, which are used for mounting the lower end of the guide column 26. The lower push plate 23 is further provided with a center mounting hole 235 in the center of the upper surface thereof, which is used for mounting the output shaft of the lower compression driving mechanism 25. The lower push plate 23 is further provided with screw holes 234 on the two sides of the lower surface thereof, which are used for mounting the upper compression roller mounting seat 24. The overall installation and disassembly are convenient.

[0037] From Figure 8 and Figure 9As can be seen, the outer wall of the lower pressing roller 17 is provided with an axially arranged positioning transverse groove 175, one side of the lower pressing wheel 18 is provided with a protruding convex disc 182, the lower pressing wheel 18 is provided with a central hole 181 penetrating the lower pressing roller 17, the convex disc 182 is provided with a positioning hole 185 penetrating the central hole 181, and the positioning of the convex disc 182 and the lower pressing roller 17 can be realized by positioning the workpiece through the positioning hole 185 and then positioning it on the positioning transverse groove 175. The upper pressing roller 27 also has a transverse groove, the upper pressing wheel 28 also has a convex disc and a positioning hole structure. The positioning workpiece can be a pin, a pin column, a bolt, etc., which is used to position the placing disc on the placing roller and position the lower pressing wheel on the lower pressing roller, and the position can be adjusted as needed.

[0038] Figure 10 and Figure 11 As shown in another embodiment of the utility model, the lower pressing straightening assembly, in this embodiment, one end of the upper pressing roller 27 is provided with an upper pressing roller sprocket disc 279, and the other end is provided with a movable sprocket disc 53, the upper pressing roller sprocket disc 279, the movable sprocket disc 53 and the sprocket disc 19 are driven to rotate by the same chain. In this structure, the sprocket drive structure can drive the lower pressing roller and the upper pressing roller to rotate at the same time, realizing synchronous rotation, which can be well applied to the straightening of large products. Because for large products, only the rotation of the lower pressing roller 17 and the friction force can cause the large products to be unable to rotate, so the upper pressing roller 27 needs to be driven to rotate synchronously. And the position of the movable sprocket disc 53 in this structure is adjustable, which facilitates the position movement during the pressing process to make the sprocket drive structure always effectively meshed and transmitted.

[0039] Specifically, in this structure, the movable sprocket disc 53 is rotatably arranged on the sliding block 512, the sliding block 512 is movably arranged on the sliding rail 521, the sliding rail 521 is arranged on the rack 52, the rack 52 is arranged on the straightening machine, and the rack 52 is further provided with a telescopic driving mechanism 51. The telescopic shaft 511 of the telescopic driving mechanism 51 drives the sliding block 512 to move on the sliding rail 521, and can reciprocate according to the pressing action of the upper pressing roller 27 to ensure the effective transmission of the sprocket drive.

[0040] In this application, the lower pressing driving mechanism 25 is an electric cylinder or an oil cylinder or a servo motor, which can be assembled according to the needs, and has high driving precision.

[0041] As can be seen from the above description, the straightening assembly in the application adopts the downward pressing device 2 in the vertical direction to cooperate with the straightening operation, and through the guide column structure and the downward pressing driving mechanism, the accuracy of the downward pressing operation is ensured to be high, the positioning is accurate, and the straightening operation on the workpiece can be more efficiently performed.

[0042] As described above, the utility model provides a kind of downward pressing type straightening assembly in straightening machine, and the guiding positioning of lower pressure structure is good, and straightening accuracy is high, and overall structure is compact, and it is convenient to debug and maintain.

[0043] The protection scope of the utility model includes but is not limited to the above implementation manners, and the protection scope of the utility model is subject to the claims, and any replacement, deformation, improvement of the skilled in the art to the present technology is also within the protection scope of the utility model.

Claims

1. A pressing straightening assembly for use in a straightening machine, comprising a pressing device (2) and a workpiece placement device (1) disposed on the main body of the straightening machine, wherein the workpiece placement device (1) is disposed below the pressing device (2); Its features are: The pressing device (2) includes a mounting base (22) installed on the main body of the straightening machine, and the mounting base (22) is provided with a pressing drive mechanism (25). The mounting base (22) has vertically penetrating guide holes on both sides, and a vertically movable guide post (26) is provided in the guide hole. The lower end of the guide post (26) is fixed on the push plate (23). The telescopic axis of the downward pressing drive mechanism (25) extends downward and is fixed on the lower push plate (23); The lower part of the push plate (23) is provided with an upper pressure roller (27), and the upper pressure roller (27) is provided with an upper pressure wheel (28). The workpiece placement device (1) is provided with a rotatable lower pressure roller (17), and the lower pressure roller (17) is provided with a plurality of lower pressure wheels (18). After the pressing device (2) moves down, the workpiece is placed in the space between the upper pressing wheel (28) and the lower pressing wheel (18) and the workpiece is straightened.

2. The downward-pressing straightening assembly for a straightening machine according to claim 1, characterized in that, The upper end of the guide post (26) is fixed to the upper positioning block (21).

3. The downward-pressing straightening assembly for a straightening machine according to claim 1, characterized in that, The lower surface of the push plate (23) is provided with symmetrically arranged upper pressure roller mounting seats (24) on both sides, and the upper pressure roller (27) is rotatably disposed between the two upper pressure roller mounting seats (24).

4. The downward-pressing straightening assembly for a straightening machine according to claim 1, characterized in that, The workpiece placement device (1) includes two symmetrically arranged lower bases (11), and two parallel lower pressure rollers (17) are arranged between the two lower bases (11). Each lower pressure roller (17) is provided with a lower pressure wheel (18).

5. The downward-pressing straightening assembly for a straightening machine according to claim 4, characterized in that, The lower pressure roller (17) extends out of the lower base (11) on one side, and a sprocket disc (19) is provided on the extended end. A chain is also provided to drive the sprocket disc (19) to rotate and drive the lower pressure roller (17) to rotate.

6. The downward-pressing straightening assembly for a straightening machine according to claim 5, characterized in that, One end of the upper pressure roller (27) is provided with an upper pressure roller sprocket disc (279) and a movable sprocket disc (53). The upper pressure roller sprocket disc (279), the movable sprocket disc (53), and the sprocket disc (19) are driven to rotate by the same chain.

7. The downward-pressing straightening assembly for a straightening machine according to claim 6, characterized in that, The movable sprocket (53) is rotatably mounted on the slider (512), the slider (512) is movably mounted on the slide rail (521), the slide rail (521) is mounted on the frame (52), and the frame (52) is also provided with a telescopic drive mechanism (51), the telescopic shaft (511) of the telescopic drive mechanism (51) drives the slider (512) to move on the slide rail (521).

8. The downward-pressing straightening assembly for a straightening machine according to claim 4, characterized in that, The outer wall of the lower pressure roller (17) is provided with an axially arranged positioning transverse groove (175). The side of the lower pressure roller (18) is provided with a protruding cam (182). The lower pressure roller (18) is provided with a central hole (181) passing through the lower pressure roller (17). The cam (182) is provided with a positioning hole (185) that passes through the central hole (181). By positioning the workpiece through the positioning hole (185) and positioning it on the positioning transverse groove (175), the positioning of the cam (182) and the lower pressure roller (17) can be realized.

9. The downward-pressing straightening assembly for a straightening machine according to claim 8, characterized in that, The upper pressure roller (27) also has a transverse groove, and the upper pressure wheel (28) also has a convex disc and positioning hole structure.

10. The pressing-type straightening assembly for a straightening machine according to any one of claims 1 to 9, characterized in that, The downward driving mechanism (25) is an electric cylinder, a hydraulic cylinder, or a servo motor.

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