Manual bar straightening device

Abstract

The invention discloses a manual bar straightening device. The manual bar straightening device comprises a base, a first straightening rod and a supporting bottom frame. Fixing supports are arranged at the two ends of the base respectively, one end of each fixing support is detachably fixed to the base, and an abutting groove is formed in the other end of each fixing support; at least one first sliding rail penetrates through the fixing support, a sliding piece is arranged on the first sliding rail in a sleeved mode, and one end of the first straightening rod is hinged to the sliding piece. The first straightening rod slides on the first sliding rail in the left-right direction through the sliding piece so as to straighten different bending positions of the bar. Multi-section bar straightening is achieved through the movable straightening rod, the straightness of the bar is detected through the limiting piece, straightening of the bar is limited at the same time, and the straightening rod is prevented from being excessively straightened; the side face of the fixing support is further provided with a second straightening rod for fixing and straightening, and multi-point and multi-section straightening is achieved in cooperation with the second straightening rod.

Description

Technical Field

[0001] The invention relates to the technical field of straighteners, and in particular to a manual bar straightening device. Background Art

[0002] In the machinery manufacturing industry, since the designed parts have certain processing accuracy requirements, if the straightness of the designed parts cannot be assembled normally, the straightness of the material bar needs to be corrected and straightened; the traditional straightening method is to make simple tooling parts, and use manual or mechanical pressure to press and straighten the bent bar in the opposite direction, so that the bent part can restore a certain straightness through pressure, and then use the detection tool to detect the straightness of the bar. If the required straightness cannot be achieved, repeat the above operation until the bar reaches the required straightness so that it can meet the assembly requirements of the designed parts; although the above method can restore the straightness of the bar, since it needs to repeatedly straighten the bar and detect the straightness, the straightening and detection need to be carried out separately, resulting in low work efficiency, especially when the bar has multiple different bending points, the straightening efficiency is even lower. Therefore, a straightener with a reasonable structure is urgently needed to solve the above-mentioned technical problems. Summary of the invention

[0003] In view of the deficiency in the above technology that the straightening and straightness detection of the bar cannot be performed simultaneously, the present invention provides a manual bar straightening device.

[0004] To achieve the above-mentioned purpose, the present invention provides a manual rod straightening device, comprising a base, a first straightening rod and a supporting bottom column, at least one fixed bracket is respectively provided at both ends of the base, the fixed bracket is detachably arranged on the base, and a first abutment groove is formed at the end away from the base; at least one first slide rail is passed through the opposite surfaces of the two fixed brackets, a sliding member is sleeved on the first slide rail, and one end of the first straightening rod is hinged to the sliding member; a slidable limiter is also provided on the base; the first straightening rod slides linearly in the left and right directions on the first slide rail through the sliding member to continuously straighten different bending positions of the rod.

[0005] As an improved solution of the present invention, a second slide rail is provided on the base, a first slider and a second slider are sleeved on the second slide rail, a supporting bottom column for supporting the rod is passed through the first slider, and a second abutment groove is formed at the end of the supporting bottom column away from the base; the limiting member is passed through the second slider, and the limiting member slides on the second slider to limit the rod.

[0006] As an improved solution of the present invention, V-shaped grooves are formed on both the support frame and the base frame.

[0007] As an improved solution of the present invention, one end of the first straightening rod is wrapped with a rubber sleeve.

[0008] As an improved solution of the present invention, a buffer base is provided at the bottom of the supporting base column and the bottom of the limiting member.

[0009] As an improved solution of the present invention, it also includes a tension spring, and a second straightening rod is provided on the opposite side of the two fixed brackets, and the second straightening rod and the fixed bracket are both provided with connecting protrusions, and the two ends of the tension spring are buckled on the second straightening rod and the connecting protrusions of the fixed bracket to elastically connect the second straightening rod to the connecting protrusions.

[0010] As an improved solution of the present invention, the base is provided with a plurality of assembly holes arranged at intervals, and the fixing bracket is provided with fixing holes adapted to the assembly holes; external bolts pass through the assembly holes and the fixing holes in sequence to fix the fixing bracket to the base.

[0011] The beneficial effects of the present invention are as follows: compared with the prior art, a manual bar straightening device provided by the present invention comprises a base, a first straightening rod and a supporting base frame; fixed brackets are respectively arranged at both ends of the base, one end of the fixed bracket is detachably fixed to the base, and an abutment groove is formed at the other end; at least one first slide rail is passed through the fixed bracket, a sliding member is sleeved on the first slide rail, and one end of the first straightening rod is hinged to the sliding member; the first straightening rod slides left and right on the first slide rail through the sliding member to straighten different bending positions of the bar; multi-stage bar straightening is achieved through the movable straightening rod, the straightness of the bar is detected by the limiter, and the bending straightening point of the bar is limited at the same time to prevent the straightening rod from being over-straightened; a second straightening rod is also provided on the side of the fixed bracket, the second straightening rod plays a straightening or fixing role, and cooperates with the first straightening rod to achieve multi-point and multi-stage straightening. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a first stereogram of the present invention; Figure 2 A top view of the present invention; Figure 3 A bottom view of the present invention; Figure 4 is a second stereogram of the present invention; Figure 5 It is the front view of the present invention.

[0013] The main component symbols are described as follows: 1. Base; 2. First straightening rod; 3. Fixed bracket; 4. First slide rail; 5. Sliding member; 6. Second slide rail; 7. Supporting bottom column; 8. Limiting member; 81. Telescopic ejector pin; 82. Limiting plate; 9. Rubber sleeve; 10. Buffering base; 11. Second straightening rod; 12. Assembly hole; 13. Fixing hole; 14. Tension spring; 15. Connecting protrusion; 16. First slider; 17. Second slider; 18. First abutting groove; 19. Adjusting hole; 20. Adjusting groove. DETAILED DESCRIPTION

[0014] In order to more clearly illustrate the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0015] In the following description, the example details are given to provide a deeper understanding of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. It should be understood that the specific embodiments are only used to explain the present invention and are not used to limit the present invention.

[0016] It should be understood that when the terms "include" and / or "comprises" are used in this specification, they indicate the existence of the stated features, integers, steps, operations, elements or components, but do not exclude the existence or addition of one or more other features, integers, steps, operations, elements, components or combinations thereof.

[0017] See also Figure 1-Figure 5 A manual bar straightening device of the present invention comprises a base 1, a first straightening rod 2 and a supporting bottom column 7. At least one fixed bracket 3 is respectively arranged at both ends of the base 1, and the fixed bracket 3 is detachably arranged on the base 1, and a first abutment groove 18 is formed at the end away from the base 1; at least one first slide rail 4 is penetrated by the two opposite surfaces of the two fixed brackets 3, and a sliding member 5 is sleeved on the first slide rail 4, and one end of the first straightening rod 2 is hinged to the sliding member 5; a slidable limiting member 8 is also provided on the base 1; the first straightening rod 2 slides linearly in the left and right directions on the first slide rail 4 through the sliding member 5 to continuously straighten the different bending positions of the bar; by setting a slidable first straightening rod 2. For straightening of bars with multiple bending points, the limiting member 8 arranged on the base 1 is used to be placed under the bending point, which plays the role of supporting and limiting the bar and detecting the straightness of the bar, preventing the bar from being bent again due to excessive straightening. At the same time, when the bending point contacts the limiting member 8, it means that the bending point of the bar has reached the required straightness standardization. The first straightening rod 2 and the limiting member 8 cooperate with each other to play the role of straightening and detection in one, realizing continuous straightening and detection, and improving the straightening efficiency. The bars straightened by the present invention include but are not limited to non-ferrous and bendable metals, with a diameter range of 3mm-20mm and a length range of 200mm-1000mm.

[0018] The working principle of the present invention is: The straightener of the present invention mainly uses a straightening rod to manually apply pressure to the bent rod that needs to be straightened to straighten it. First, the bent rod is placed on the V-shaped groove, and the first straightening rod 2 is used to squeeze and straighten the bent part of the rod. The limiting member 8 is used to support the bending point of the rod to prevent the first straightening rod 2 from being over-straightened and causing secondary bending of the rod. At the same time, a telescopic ejector pin 81 is provided on the limiting member 8. The jump of the telescopic ejector pin 81 is observed by sliding the limiting member 8 to judge the straightness of the rod. Since the first straightening rod 2 is sleeved on the slide rail through the sliding member 5, when the rod has multiple bending points, it can be freely slid left and right in a straight line through the slide rail, adjusted to a suitable position and straightened again; second straightening rods 11 are also provided above and on the side of the fixed bracket 3, respectively. The second straightening rod 11 can be fixed when the rod is straightened to prevent the rod from being pried. According to the length of the rod, the fixed bracket 3 can be disassembled, and the position of the fixed bracket 3 can be controlled according to different assembly holes 12 on the base 1 to adapt to the length of the rod.

[0019] See also Figure 4-Figure 5In this embodiment, a second slide rail 6 is provided on the base 1, and a first slider 16 and a second slider 17 are sleeved on the second slide rail 6. A supporting bottom column 7 for supporting the rod is penetrated on the first slider 16, and a second abutting groove is formed on the end of the supporting bottom column 7 away from the base 1; a limiting member 8 is penetrated on the second slider 17, and the limiting member 8 is slidably limited on the second slider 17, and the limiting member 8 is used to limit and support the rod; the rod is supported by setting the supporting bottom column 7, and at this time, the two fixed brackets 3 combined with the supporting bottom column 7 provide multiple supporting points to achieve a more stable supporting effect, wherein the first abutting groove 18 and the second abutting groove are V-shaped grooves. Compared with the arc-shaped or straight groove surface, the V-shaped abutting groove can achieve better abutting support for the rod to prevent the rod from rolling and falling off during straightening; the limiting member 8 can detect the straightness of the rod and limit the rod at the same time to ensure that the straight rod will not be over-pressed when the straight rod is pressed. The limit member 8 comprises a retractable telescopic ejector pin 81, one end of which is in contact with the rod. When observing the straightness of the rod, the limit member 8 is slid to observe whether the telescopic ejector pin 81 has telescopic jump or whether the rod itself is lifted and rotated by the telescopic ejector pin 81, so as to judge whether the rod is straightened. It can be understood that the telescopic ejector pin 81 can realize telescopic jump by being fixedly connected with the spring. At the same time, the height of the limit member 8 can be adjusted to adapt to rods of different diameters. When the rod is straightened excessively, the telescopic ejector pin 81 is compressed by the rod to be consistent with the height of the limit plate 82 of the limit member 8, and the limit plate 82 will prevent the rod from further bending. Furthermore, an adjusting groove 20 is provided on the cylindrical surface of the supporting base column 7, and an adjusting hole 19 is provided on the first sliding block 16. An external bolt is passed through the adjusting hole 19 to the adjusting groove 20, and the position height of the supporting base column 7 can be controlled by adjusting the tightness of the bolt to adapt to rods of different lengths.

[0020] See also Figure 1 In this embodiment, in order to ensure smooth straightening, a buffer base 10 is provided at the bottom of the support base column 7 and the limiter 8. The buffer base 10 is used to increase the supporting stability of the support base column 7 and the limiter 8 to avoid shaking and causing straightening errors. The side of the buffer base 10 in contact with the base 1 can be a silicone base, and the side in contact with the support base column 7 and the limiter 8 can be a metal base. The buffer base 10 can be completely metal or silicone support. The specific setting can be made according to actual production and processing needs to improve adaptability. One end of the buffer base 10 connected to the support base column 7 and the limiter 8 is a threaded connection, so the support height of the support base column 7 and the limiter 8 can be adjusted by rotating the buffer base 10.

[0021] See also Figure 1In this embodiment, a rubber sleeve 9 is wrapped at one end of the first straightening rod 2. Since it is often necessary to apply a large force to straighten the bent part of the rod when straightening the rod, the rubber sleeve 9 is provided to increase the friction of the first straightening rod 2, thereby providing a greater gripping force and preventing slipping.

[0022] See also Figure 1 The second straightening rod 11 is provided with a second straightening rod 11 on one side opposite to the other of the two fixing brackets 3, and the second straightening rod 11 and the fixing bracket 3 are provided with a connecting protrusion 15, and the two ends of the tension spring 14 are fixedly connected to the second straightening rod 11 and the connecting protrusion 15 of the fixing bracket 3, so that the second straightening rod 11 is elastically connected to the connecting protrusion 15. When the second straightening rod 11 rotates, the tension spring 14 expands and contracts to provide a certain elastic force. When the first straightening rod 2 straightens the rod, the second straightening rod 11 plays a certain degree of fixing role. Since the rod has its own weight, it only needs to use the tension spring 14 to exert a downward force on the second straightening rod 11, combined with the gravity of the second straightening rod 11 itself, to achieve a stable fixation of the processed rod, thereby ensuring that the two ends of the rod will not tilt when the rod is straightened; when the two end edges of the rod are bent for straightening, due to the action of the torque, the other end will tilt. At this time, the second straightening rod 11 can also be used to press the rod to fix the rod.

[0023] See also Figure 3 In this embodiment, the base 1 is provided with a plurality of assembly holes 12 arranged at intervals, and the fixing bracket 3 is provided with fixing holes 13 adapted to the assembly holes 12; the external bolts pass through the assembly holes 12 and the fixing holes 13 in sequence to fix the fixing bracket 3 to the base 1; it can be understood that the fixing holes 13 are threaded holes, and when the external bolts are inserted, the fixing holes 13 are threadedly connected with the external bolts, so that the fixing bracket 3 is fixedly matched with the base 1, and a plurality of assembly holes 12 are provided on the base 1, and the user can adjust the position between the left and right fixing brackets 3 according to different rods, and since the first slide rail 4 is passed through the fixing bracket 3, the second slide rail 6 is fixedly set on the base 1, and the two ends of the second slide rail 6 are also passed through the fixing brackets 3 at both ends, and then the fixing bracket can be freely adjusted according to the position of the assembly holes 12. Position to adapt to rods of different lengths, thereby improving the flexibility of product use.

[0024] The advantages of the present invention are: 1) The first straightening rod can slide linearly in the left and right directions, and cooperate with the second straightening rod to achieve multi-stage and multi-point bending straightening.

[0025] 2) A movable supporting bottom column and a limiting part are provided. The supporting bottom column is used to increase the supporting points of the bar so that the bar can be fully stressed when straightening. The limiting part can realize limited support for the bent part of the bar to ensure that the bar will not bend again due to straightening, and can detect whether the straightness of the bending point meets the standard, thus realizing the straightening and straightness inspection of the bar in one step.

[0026] 3) The detachable fixing bracket can be adjusted according to the length of the rods of different sizes, and the distance between the fixing brackets at both ends can be adjusted through multiple assembly holes arranged at intervals on the base.

[0027] The above disclosures are only several specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A manual bar straightening device, characterized in that: It includes a base, a first straightening rod and a supporting bottom column, at least one fixed bracket is respectively provided at both ends of the base, the fixed bracket is detachably arranged on the base, and a first abutment groove is formed at the end away from the base; at least one first slide rail is passed through the two opposite surfaces of the two fixed brackets, a sliding member is sleeved on the first slide rail, and one end of the first straightening rod is hinged to the sliding member; a slidable limiting member is also provided on the base; the first straightening rod slides linearly in the left and right directions on the first slide rail through the sliding member to continuously straighten different bending positions of the rod.

2. The manual bar straightening device according to claim 1, characterized in that: The base is provided with a second slide rail, the second slide rail is sleeved with a first slider and a second slider, the first slider is penetrated with a supporting bottom column for supporting the rod, and a second abutment groove is formed at one end of the supporting bottom column away from the base; the limiting member is penetrated by the second slider, and the limiting member slides on the second slider to limit the rod.

3. The manual bar straightening device according to claim 2, characterized in that: The first abutting groove and the second abutting groove are both V-shaped grooves.

4. The manual bar straightening device according to claim 1, characterized in that: One end of the first straightening rod is wrapped with a rubber sleeve.

5. The manual bar straightening device according to claim 2, characterized in that: A buffer base is provided at the bottom of the support base column and the limiter, and the buffer base is fixedly connected to the support base column and the limiter through a threaded connection; when the support base column and the limiter are subjected to pressure from the rod, the buffer base relieves the pressure.

6. The manual bar straightening device according to claim 1, characterized in that: It also includes a tension spring, and a second straightening rod is provided on the opposite side of the two fixed brackets, the second straightening rod is rotatably connected to the fixed bracket, and the second straightening rod and the fixed bracket are provided with connecting protrusions, and the two ends of the tension spring are respectively fixedly connected to the second straightening rod and the connecting protrusions of the fixed bracket to make the second straightening rod elastically connected.

7. The manual bar straightening device according to claim 1, characterized in that: The base is provided with a plurality of assembly holes arranged at intervals, and the fixing bracket is provided with fixing holes adapted to the assembly holes; external bolts pass through the assembly holes and the fixing holes in sequence to fix the fixing bracket to the base.

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