Round bar straightness inspection and straightening device

Abstract

The utility model discloses a round bar stock straightness inspection and straightening device which comprises a working table, and a round bar stock positioning mechanism, a straightness inspection mechanism, a straightening mechanism and a rotation driving mechanism are arranged on the working table. According to the utility model, the movable teeth are movably connected to the measuring assembly, so that the detection plate is movably supported, and when the round bar is clamped by the positioning piece and is driven to rotate by the rotation driving mechanism, if the detection plate moves upwards, the round bar has curvature and needs to be straightened; if the detection plate does not act, the straightness of the round bar is qualified, straightening operation is not needed, and whether the round bar has curvature or not is obtained through the expression state of the detection plate; the two straightening means of the balance weight plate and the pressure straightening assembly are adopted, the corresponding straightening means can be selected according to the specification of the round bar, the measuring assembly and the detection plate are detachably connected, the pressure straightening assembly can movably conduct straightening operation, the applicability of the equipment is improved, and the straightening efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tool processing, in particular to a round bar material straightness inspection and straightening device used for producing tool. Background Art

[0002] Metal round bars are raw materials for the machinery manufacturing industry. The metal round bars purchased from the market are all straight bars with a fixed length of 6000mm. Such bars may be plastically deformed due to bending during the manufacturing, logistics and warehousing processes.

[0003] When manufacturing cutting tools, metal bars of corresponding materials and specifications are usually purchased according to the target cutting tool design dimensions. If the straightness of the purchased metal round bars exceeds the tolerance, it will inevitably cause the practical problem of insufficient cutting allowance for the outer circle of the target product. In order to minimize the scrap rate in the production process, the straightness of the metal round bars must be tested before cutting, so that the deviation can be corrected through the corresponding straightening process.

[0004] In reality, most companies use a ruler and a feeler gauge to measure the straightness of metal round bars. This measurement technology uses a simple instrument and is very convenient to measure, which can achieve the purpose of straightness measurement. However, since the raw material is 6000mm long, it is necessary to perform multiple measurements at different positions when measuring with a feeler gauge. Then, based on the measurement results, the curvature at different positions is corrected using the corresponding straightening process. Therefore, the detection process is time-consuming and requires relocation for straightening. Not only is the process complicated, but the detection and straightening efficiency is low, and it is not suitable for mass production. Summary of the invention

[0005] In order to overcome the above-mentioned defects, the utility model provides a straightness inspection and straightening device for detecting the straightness of a round bar material used for producing a tool and for simultaneously correcting the deviation.

[0006] The utility model adopts a technical solution to solve the technical problem: to provide a round bar straightness inspection and straightening device, comprising a workbench, on which a round bar positioning mechanism, a straightness inspection mechanism, a straightening mechanism and a rotation drive mechanism are arranged;

[0007] The round bar material positioning mechanism comprises a positioning member and a support member arranged on one side of the positioning member, the positioning member is used to clamp one end of the round bar material and drive the round bar material to rotate, and the support member has an arc-shaped supporting surface coaxially arranged with the positioning member and supporting the round bar material;

[0008] The straightness detection mechanism includes a detection plate and multiple groups of measuring components, and the multiple groups of measuring components are used to movably support the detection plate just above the arc-shaped support surface of the support member, so that the lower end surface of the detection plate elastically abuts against the surface of the round bar material; each group of the measuring components includes a measuring rod vertically arranged on the support member, and a plurality of movable teeth movably connected to the measuring rod and arranged toward one side of the arc-shaped support surface;

[0009] The straightening mechanism comprises a weight plate supported by the measuring assembly directly above the arc-shaped supporting surface of the supporting member and used for straightening the round bar material;

[0010] The rotation driving mechanism comprises a driving motor, a driving gear drivingly connected to the driving motor, and a driven gear meshing with the driving gear, and the positioning member is drivingly connected to the driven gear.

[0011] As a further improvement of the utility model, a first installation cavity for installing the movable tooth is opened in the measuring rod, and a plurality of reset spring assemblies are arranged in the first installation cavity, which are respectively elastically abutted against the upper and lower end faces of each movable tooth, and the reset spring assembly includes a reset block, a reset spring and a spring positioning shaft which are arranged in a horizontal direction and connected in sequence, the reset spring is sleeved on the spring positioning shaft, and the two ends of the reset spring are respectively elastically abutted against the two side walls opposite to the first installation cavity and the reset block.

[0012] As a further improvement of the utility model, the movable tooth is a teardrop-shaped structure composed of a large end, a connecting part and a small end connected in sequence, the large end is connected to the first mounting cavity through a mounting shaft, and the small end extends outward and upward from the first mounting cavity to the outer end of the measuring rod through the connecting part.

[0013] As a further improvement of the present invention, the support member includes a connecting plate arranged outside the radial sides of the arc-shaped supporting surface, the measuring rod is detachably connected to the connecting plate, a slot is opened on the connecting plate in the horizontal direction, and the measuring rod is provided with a screw on the side away from the movable tooth, and the screw is connected to the butterfly nut after passing through the slot.

[0014] As a further improvement of the utility model, the driven gear is composed of two semicircular gears of the same specifications, and the two semicircular gears are respectively provided with connecting parts at one end facing the support member, and a plurality of grooves are provided on the inner side wall of the connecting part along its axial direction, and a plurality of clamping blocks matching the grooves are provided on the outer peripheral surface of the positioning member.

[0015] As a further improvement of the present invention, the driven gear is rotatably arranged on the workbench through a fixed mounting assembly, and the fixed mounting assembly includes a bottom mounting seat fixedly connected to the workbench, and an upper mounting seat hinged on the bottom mounting seat, and the upper mounting seat and the bottom mounting seat are covered to form a second mounting cavity for positioning the connecting part of the driven gear, and a guide groove is arranged on the inner circumferential wall of the second mounting cavity along its radial direction, and a sliding block matching the guide groove is arranged on the outer circumferential surface of the connecting part of the driven gear.

[0016] As a further improvement of the present invention, one side of the upper mounting seat and the bottom mounting seat is hinged by a hinge, and the other side of the upper mounting seat and the bottom mounting seat is provided with a lock buckle for locking the upper mounting seat and the bottom mounting seat after covering.

[0017] As a further improvement of the present invention, the straightening mechanism also includes a pressure straightening assembly slidably arranged on the workbench, the pressure straightening assembly includes a hydraulic press and a straightening block drivingly connected to the output shaft of the hydraulic press, and the hydraulic press is used to drive the straightening block to move up and down in the vertical direction.

[0018] As a further improvement of the utility model, the hydraulic press is mounted on the workbench through a sliding bracket, and a sliding groove is provided on the workbench on the outer sides of the two connecting plates. A roller is provided at the bottom of the sliding bracket and is placed in the sliding groove and can roll along the sliding groove.

[0019] The beneficial effects of the utility model are:

[0020] 1. The detection plate is supported by the movable teeth movably connected to the measuring assembly. When the round bar is clamped by the positioning member and driven to rotate by the rotating drive mechanism, if the detection plate moves upward, it means that the round bar has curvature and needs to be straightened. If the detection plate does not move, it means that the straightness of the round bar is qualified and no straightening is required. The curvature of the round bar can be obtained by the state of the detection plate, thereby improving the detection efficiency.

[0021] 2. By adopting two straightening methods, the counterweight plate and the pressure straightening assembly, the corresponding straightening method can be selected according to the specifications of the round bar material. Through the detachable connection of the measuring assembly and the detection plate, the pressure straightening assembly can be moved for straightening operations, thereby improving the applicability of the equipment and improving the straightening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 It is a structural schematic diagram of another perspective of the utility model;

[0024] Figure 3 For this utility model Figure 1 Schematic diagram of the decomposition structure;

[0025] Figure 4 It is a schematic diagram of the exploded structure of the fixed installation assembly, the positioning member and the driven gear of the utility model;

[0026] Figure 5 This is a structural schematic diagram of the straightness detection mechanism of the utility model;

[0027] Figure 6 For this utility model Figure 5 An enlarged schematic diagram of point A.

[0028] Combined with the attached drawings, the following description is given:

[0029] 1. Workbench; 11. Sliding groove; 2. Round bar positioning mechanism; 21. Positioning member; 211. Clamping block; 22. Support member; 221. Arc support surface; 222. Connecting plate; 2221. Slot hole; 3. Straightness detection mechanism; 31. Detection plate; 32. Measuring assembly; 321. Measuring rod; 3211. First mounting cavity; 322. Movable tooth; 3221. Large end; 3222. Connecting part; 3223. Small end; 323. Reset spring assembly; 3231. Reset block; 3232. Reset spring; 3233. Spring positioning shaft; 324. Installation Axis mounting; 325, screw; 326, butterfly nut; 33, fixed mounting assembly; 331, bottom mounting seat; 332, upper mounting seat; 333, second mounting cavity; 3331, guide slide groove; 334, hinge; 335, lock; 4, straightening mechanism; 41, counterweight plate; 42, pressure straightening assembly; 421, hydraulic press; 422, straightening block; 423, sliding bracket; 4231, roller; 5, rotating drive mechanism; 51, driving motor; 52, driving gear; 53, driven gear; 531, connecting part; 5311, slot; 5312, slider. DETAILED DESCRIPTION

[0030] A preferred embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings.

[0031] See also Figure 1-6 The utility model provides a round bar straightness inspection and straightening device, comprising a workbench 1, on which a round bar positioning mechanism 2, a straightness inspection mechanism 3, a straightening mechanism 4 and a rotation driving mechanism 5 are arranged.

[0032] The round bar material positioning mechanism 2 includes a positioning member 21 and a support member 22 arranged on one side of the positioning member 21. The positioning member 21 is used to clamp one end of the round bar material and drive the round bar material to rotate. The support member 22 has an arc-shaped support surface 221 coaxially arranged with the positioning member 21 and supporting the round bar material.

[0033] The straightness detection mechanism 3 includes a detection plate 31 and a plurality of measurement components 32. The plurality of measurement components 32 are used to movably support the detection plate 31 directly above the arc-shaped support surface 221 of the support member 22, so that the lower end surface of the detection plate 31 elastically contacts the surface of the round bar material; each measurement component 32 includes a measurement rod 321 vertically arranged on the support member 22, and a plurality of movable teeth 322 movably connected to the measurement rod 321 and arranged toward one side of the arc-shaped support surface 221;

[0034] The straightening mechanism 4 includes a weight plate 41 which is supported by the measuring assembly 32 just above the arc-shaped supporting surface 221 of the supporting member 22 and is used for straightening the round bar material;

[0035] The rotation driving mechanism 5 includes a driving motor 51 , a driving gear 52 drivingly connected to the driving motor 51 , and a driven gear 53 meshing with the driving gear 52 . The positioning member 21 is drivingly connected to the driven gear 53 .

[0036] The positioning member 21 has a positioning inner hole matching the diameter of the round bar material, which is used to fix one end of the round bar material, and the driving motor 51 drives the driving gear 52 to rotate and drives the driven gear 53 to rotate, so that the positioning member 21 drives the round bar material to rotate around its axis. At the same time, the other end of the round bar material is supported by the arc-shaped support surface 221 of the support member 22, and the arc-shaped support surface 221 is coaxially arranged with the positioning inner hole, so that the round bar material, the positioning inner hole and the arc-shaped support surface 221 are coaxial, which is convenient for straightness detection and straightening operations.

[0037] In addition, in order to be suitable for the straightness detection and straightening of round bars of different diameters, the positioning member 21 can be set as a plurality of replacement members with positioning inner holes of different diameters. Correspondingly, by setting a detachable gasket on the arc-shaped support surface 221, the support of round bars of different diameters can be met, thereby improving the scope of application of the device. When solid aluminum round bars, soft alloys or thinner alloy round bars are used for production, the round bars that do not meet the straightness can be directly straightened through the counterweight plate, that is, the counterweight plate is supported at a position equal to the radius of the round bar through the movable teeth, and the round bar is straightened by rotating it. It can be understood that at this time, due to the material characteristics of the round bar, the counterweight plate is not enough to lift up when rotating, thereby achieving the purpose of straightening.

[0038] See also Figure 5 and 6As shown, a first installation cavity 3211 for installing the movable tooth 322 is provided in the measuring rod 321, and a plurality of return spring assemblies 323 are provided in the first installation cavity 3211, which are elastically abutted against the upper and lower end surfaces of each movable tooth 322, respectively. The return spring assembly 323 includes a return block 3231, a return spring 3232 and a spring positioning shaft 3233, which are arranged in a horizontal direction and connected in sequence. The return spring 3232 is sleeved on the spring positioning shaft 3233, and the two ends of the return spring 3232 are elastically abutted against the first installation cavity 3211 and the two side walls opposite to the return block 3231. The movable tooth 322 is a teardrop-shaped structure composed of a large end 3221, a connecting portion 3222 and a small end 3223 connected in sequence. The large end 3221 is connected to the first installation cavity 3211 through a mounting shaft 324, and the small end 3223 extends from the first installation cavity 3211 to the outside and upward to the outer end of the measuring rod 321 through the connecting portion 3222.

[0039] Specifically, a scale is provided on the measuring rod 321 in the vertical direction, and the starting zero position of the scale is on the same horizontal line as the center axis of the round bar material. The detection plate 31 is a lightweight metal plate. The detection plate 31 is placed on the measuring rod 321 at a position equal to the radius of the round bar material. At this time, the upper end surfaces of the large ends 3221 of the two adjacent movable teeth 322 are stopped by the reset block 3231, so that the detection plate 31 is effectively supported directly above the arc-shaped support surface 221 of the support member 22. If the round bar material has curvature, when the positioning piece 21 drives the round bar material to rotate, the detection plate 31 will be pushed up, and during the lifting process, the small end 3223 of the movable tooth 322 located above the detection plate 31 is forced to move upward, and at the same time, the lower end surface of the large end 3221 squeezes the reset block 3231, and the reset spring 3232 is forced to shrink; when the detection plate 31 moves between the two movable teeth 322, the small end 3223 of the movable tooth 322 releases the force, the reset spring 3232 resets, and the synchronous movable tooth 322 resets to continue to support and position the detection plate 31.

[0040] Furthermore, the support member 22 includes a connecting plate 222 arranged outside the radial sides of the arc-shaped supporting surface 221, the measuring rod 321 is detachably connected to the connecting plate 222, a slot 2221 is opened on the connecting plate 222 in the horizontal direction, and the measuring rod 321 is provided with a screw 325 on the side away from the movable tooth 322, and the screw 325 passes through the slot 2221 and is connected to the butterfly nut 326.

[0041] The straightening mechanism 4 also includes a pressure straightening assembly 42 slidably arranged on the workbench 1. The pressure straightening assembly 42 includes a hydraulic press 421 and a straightening block 422 connected to the output shaft of the hydraulic press 421. The hydraulic press 421 is used to drive the straightening block 422 to move up and down in the vertical direction. The hydraulic press 421 is mounted on the workbench 1 through a sliding bracket 423. The workbench 1 is provided with a sliding groove 11 on the outside of the two connecting plates 222. The bottom of the sliding bracket 423 is provided with a roller 4231 placed in the sliding groove 11 and capable of rolling along the sliding groove 11. That is, when it is necessary to straighten a round bar material of a hard material such as a high-speed alloy steel, after unscrewing the butterfly nut 326 and removing the measuring assembly 32, the pressure straightening assembly 42 is pushed to the top of the round bar material, and the hydraulic press 421 drives the straightening block 422 to move downward and straighten the round bar material with the cooperation of the arc-shaped support surface 221.

[0042] Furthermore, in order to meet the requirements of detection and straightening operations for different round bar materials, the driven gear 53 is composed of two semicircular gears of the same specifications. The two semicircular gears are respectively provided with connecting parts 531 at one end facing the support member 22, and a plurality of card grooves 5311 are provided on the inner side wall of the connecting part 531 along its axial direction, and a plurality of card blocks 211 matching the card grooves 5311 are provided on the outer peripheral surface of the positioning member 21. The driven gear 53 is rotatably arranged on the workbench 1 through the fixed installation assembly 33. The fixed installation assembly 33 includes a bottom mounting seat 331 fixedly connected to the workbench 1 and an upper mounting seat 332 hinged on the bottom mounting seat 331. After the upper mounting seat 332 and the bottom mounting seat 331 are covered, a second mounting cavity 333 for positioning the connecting portion 531 of the driven gear 53 is formed. A guide slot 3331 is arranged on the inner peripheral wall of the second mounting cavity 333 along its radial direction. A slider 5312 matching the guide slot 3331 is arranged on the outer peripheral surface of the connecting portion 531 of the driven gear 53. One side of the upper mounting seat 332 and the bottom mounting seat 331 is hinged by a hinge 334. The other side of the upper mounting seat 332 and the bottom mounting seat 331 is provided with a lock 335 for locking the upper mounting seat 332 and the bottom mounting seat 331 after covering. In this way, the replacement operation of the positioning member can be realized, and the positioning member can be installed and matched with the driven gear.

[0043] In summary, the round bar straightness inspection and straightening device provided by the utility model, through the movable teeth movably connected to the measuring component, enables the detection plate to be movably supported. When the round bar is clamped by the positioning piece and driven to rotate by the rotating drive mechanism, if the detection plate moves upward, it means that the round bar has curvature and needs straightening operation. If the detection plate does not move, it means that the straightness of the round bar is qualified and no straightening operation is required. Whether the round bar has curvature can be obtained by the performance state of the detection plate. By adopting two straightening means, namely the counterweight plate and the pressure straightening component, the corresponding straightening means can be selected according to the specifications of the round bar. By the detachable connection between the measuring component and the detection plate, the pressure straightening component can be moved to perform straightening operations, thereby improving the applicability of the equipment and improving the straightening efficiency.

[0044] In the above description, many specific details are described to facilitate a full understanding of the present invention. However, the above description is only a preferred embodiment of the present invention. The present invention can be implemented in many other ways different from those described herein, so the present invention is not limited by the specific implementation disclosed above. At the same time, any person familiar with the technical field can make many possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of protection of the technical solution of the present invention.

Claims

1. A round bar straightness inspection and straightening device, comprising a workbench (1), characterized in that: The workbench (1) is provided with a round bar positioning mechanism (2), a straightness detection mechanism (3), a straightening mechanism (4) and a rotation driving mechanism (5); The round bar material positioning mechanism (2) comprises a positioning member (21) and a support member (22) arranged on one side of the positioning member (21), wherein the positioning member (21) is used to clamp one end of the round bar material and drive the round bar material to rotate, and the support member (22) has an arc-shaped support surface (221) coaxially arranged with the positioning member (21) and supporting the round bar material; The straightness detection mechanism (3) comprises a detection plate (31) and a plurality of groups of measuring components (32), wherein the plurality of groups of measuring components (32) are used to movably support the detection plate (31) directly above the arc-shaped support surface (221) of the support member (22), so that the lower end surface of the detection plate (31) elastically contacts the surface of the round bar material; each group of the measuring components (32) comprises a measuring rod (321) vertically arranged on the support member (22), and a plurality of movable teeth (322) movably connected to the measuring rod (321) and arranged toward one side of the arc-shaped support surface (221); The straightening mechanism (4) comprises a counterweight plate (41) supported by the measuring assembly (32) directly above the arc-shaped supporting surface (221) of the supporting member (22) and used for straightening the round bar; The rotation drive mechanism (5) comprises a driving motor (51), a driving gear (52) drivingly connected to the driving motor (51), and a driven gear (53) meshing with the driving gear (52), and the positioning member (21) is drivingly connected to the driven gear (53).

2. The round bar straightness inspection and straightening device according to claim 1 is characterized in that: The measuring rod (321) is provided with a first installation cavity (3211) for installing the movable tooth (322); the first installation cavity (3211) is provided with a plurality of reset spring assemblies (323) respectively elastically abutting against the upper and lower end surfaces of each movable tooth (322); the reset spring assembly (323) comprises a reset block (3231), a reset spring (3232) and a spring positioning shaft (3233) which are arranged in a horizontal direction and connected in sequence; the reset spring (3232) is sleeved on the spring positioning shaft (3233), and the two ends of the reset spring (3232) are respectively elastically abutted against two opposite side walls of the first installation cavity (3211) and the reset block (3231).

3. The round bar straightness inspection and straightening device according to claim 2 is characterized in that: The movable tooth (322) is a teardrop-shaped structure consisting of a large end (3221), a connecting portion (3222) and a small end (3223) connected in sequence; the large end (3221) is connected to the first mounting cavity (3211) via a mounting shaft (324); and the small end (3223) extends outward and upward from the first mounting cavity (3211) to the outer end of the measuring rod (321) via the connecting portion (3222).

4. The round bar straightness inspection and straightening device according to claim 1, characterized in that: The support member (22) comprises a connecting plate (222) arranged outside the radial sides of the arc-shaped supporting surface (221); the measuring rod (321) is detachably connected to the connecting plate (222); a slot hole (2221) is provided on the connecting plate (222) in the horizontal direction; a screw rod (325) is provided on the side of the measuring rod (321) away from the movable tooth (322); the screw rod (325) passes through the slot hole (2221) and is connected to a butterfly nut (326).

5. The round bar straightness inspection and straightening device according to claim 1, characterized in that: The driven gear (53) is composed of two semicircular gears of the same specification. The two semicircular gears are respectively provided with a connecting portion (531) at one end facing the support member (22). The inner side wall of the connecting portion (531) is provided with a plurality of slots (5311) along its axial direction. The outer peripheral surface of the positioning member (21) is provided with a plurality of snap-in blocks (211) matching the slots (5311).

6. The round bar straightness inspection and straightening device according to claim 5, characterized in that: The driven gear (53) is rotatably arranged on the workbench (1) through a fixed mounting assembly (33), and the fixed mounting assembly (33) includes a bottom mounting seat (331) fixedly connected to the workbench (1), and an upper mounting seat (332) hinged on the bottom mounting seat (331), and the upper mounting seat (332) and the bottom mounting seat (331) are covered to form a second mounting cavity (333) for positioning the connecting portion (531) of the driven gear (53), and a guide groove (3331) is arranged on the inner peripheral wall of the second mounting cavity (333) along its radial direction, and a slider (5312) matching the guide groove (3331) is arranged on the outer peripheral surface of the connecting portion (531) of the driven gear (53).

7. The round bar straightness inspection and straightening device according to claim 6, characterized in that: One side of the upper mounting seat (332) and the bottom mounting seat (331) are hingedly connected via a hinge (334), and the other side of the upper mounting seat (332) and the bottom mounting seat (331) is provided with a lock buckle (335) for locking the upper mounting seat (332) and the bottom mounting seat (331) after they are covered.

8. The round bar straightness inspection and straightening device according to claim 4, characterized in that: The straightening mechanism (4) further comprises a pressure straightening assembly (42) slidably arranged on the workbench (1), the pressure straightening assembly (42) comprising a hydraulic press (421) and a straightening block (422) drivingly connected to an output shaft of the hydraulic press (421), the hydraulic press (421) being used to drive the straightening block (422) to move up and down in a vertical direction.

9. The round bar straightness inspection and straightening device according to claim 8, characterized in that: The hydraulic press (421) is mounted on the workbench (1) via a sliding bracket (423); a sliding groove (11) is provided on the workbench (1) on the outer sides of the two connecting plates (222); a roller (4231) is provided at the bottom of the sliding bracket (423) and is placed in the sliding groove (11) and can roll along the sliding groove (11).

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