Manual straightening device

Abstract

The utility model relates to the technical field of screw rod straightening, and particularly discloses a manual straightening device which comprises a workbench, the upper end of the workbench is fixedly connected with a sliding rod, the upper end of the sliding rod is provided with two clamping assemblies, each clamping assembly comprises a base movably connected to the upper end of the sliding rod, and the base is movably connected to the upper end of the sliding rod. The upper end of the interior of the base is movably connected with first rotating shafts, the number of the first rotating shafts is two, the upper end of the exterior of the first rotating shaft at the front end is movably connected with a first clamping rod, the upper end of the exterior of the first rotating shaft at the rear end is movably connected with a second clamping rod, and the interior of the base is movably connected with a round rod; connecting rods are movably connected between the round rod and the first clamping rod and between the round rod and the second clamping rod, after the bending position of the lead screw is detected, the lead screw can be clamped and fixed when force is applied to the lead screw for straightening work, so that the lead screw is prevented from deviating towards the bending side under stress, and the working efficiency of lead screw straightening is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screw rod straightening, in particular to a manual straightening device. Background Art

[0002] Ball screws are the most commonly used transmission elements in tool machinery and precision machinery. Their main function is to convert rotational motion into linear motion, or convert torque into axial repetitive force. They also have the characteristics of high precision, reversibility and high efficiency. Due to their very low friction resistance, ball screws are widely used in various industrial equipment and precision instruments.

[0003] The ball screw is composed of a screw, nut, steel ball, pre-load plate, reverser, and dust collector. Its function is to convert rotational motion into linear motion. This is a further extension and development of the ACM screw. The important significance of this development is that it changes the bearing's sliding motion into rolling motion. The accuracy of the screw will directly affect the condition of the mechanical transmission, and thus affect the accuracy of the device using the screw.

[0004] In the existing technical solution, during the normal use of the screw rod, local force may cause the screw rod to bend, and then the operator will inspect and straighten it. However, during the inspection and straightening process, when force is applied to the bending point of the screw rod to straighten it, the bent screw rod will rotate and offset in the direction of the force, which will affect the effect of the screw rod straightening, and further affect the entire screw rod straightening work.

[0005] Therefore, a manual straightening device is proposed. Utility Model Content

[0006] The purpose of the present utility model is to provide a manual straightening device which can, after detecting the bending position of the screw rod, clamp and fix the screw rod when applying force to the screw rod for straightening, thereby preventing the screw rod from being biased toward the bent side by the force, thereby improving the working efficiency of the screw rod straightening, and solving the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a manual straightening device, comprising a workbench, wherein the upper end of the workbench is fixedly connected to a slide bar, the upper end of the slide bar is provided with a clamping assembly, the number of the clamping assemblies is two, the clamping assembly includes a base movably connected to the upper end of the slide bar, the inner upper end of the base is movably connected to a first rotating shaft, the number of the first rotating shaft is two;

[0008] The outer upper end of the first rotating shaft at the front end is movably connected to the first clamping rod, and the outer upper end of the first rotating shaft at the rear end is movably connected to the second clamping rod. The inside of the base is movably connected to a round rod, and connecting rods are movably connected between the round rod and the first clamping rod and the second clamping rod.

[0009] Preferably, the ends of the first clamping rod and the second clamping rod that are close to each other are both fixedly connected to a first anti-slip pad, and the outside of the round rod is movably connected to a first spring.

[0010] Preferably, a hand press is fixedly connected to the rear side of the upper end of the workbench, and a dial indicator is fixedly connected to the lower front end of the hand press.

[0011] Preferably, the upper end of the slide rod is movably connected to a slider, and the number of the sliders is two, and the upper ends of the two sliders are both movably connected to a support.

[0012] Preferably, a forward moving component is provided inside and at the right end of the support at the right end, and the forward moving component includes a second rotating shaft movably connected to the inside of the support, and there are two second rotating shafts. The outsides of the two second rotating shafts are fixedly connected to a turntable, and the outsides of the two turntables are fixedly connected to a second anti-slip pad, and the right side of the outside of the second rotating shaft at the front end is fixedly connected to an active bevel gear.

[0013] Preferably, the forward moving assembly also includes a fixed plate fixedly connected to the right end of the support, and the number of the fixed plates is two, and a third rotating shaft is movably connected between the two fixed plates, the outside of the third rotating shaft is fixedly connected to the driven bevel gear and the fixed plate, and a cavity is opened inside the fixed plate, and the number of the cavities is multiple, and the interiors of the multiple cavities are all movably connected to movable rods, and the ends of the multiple movable rods that are close to each other are all movably connected to the second spring, and the ends of the multiple movable rods that are away from each other are all fixedly connected to a block.

[0014] Preferably, the round rod is slidably fitted inside the base, and the elastic force of the first spring is greater than the sum of the gravity acting on the first clamping rod, the first spring and the connecting rod.

[0015] Preferably, the active bevel gear and the driven bevel gear are meshed with each other, and the elastic force of the second spring is greater than the sum of the gravity acting on the movable rod and the clamping block.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. This manual straightening device, comprising a base, a first rotating shaft, a first clamping rod, a second clamping rod, a round rod, a connecting rod, and a first spring, can detect the bent position of a screw rod and, when force is applied to the screw rod for straightening, clamp and secure the screw rod, thereby preventing the screw rod from being deflected toward the bent side under force, thereby improving the efficiency of screw rod straightening.

[0018] 2. This manual straightening device, by installing components such as a second rotating shaft, a turntable, a fixed plate, a fixed plate, a movable rod, a second spring and a clamping block, can rotate the screw before detecting the bending position of the screw. The device can continuously translate the screw to contact the dial indicator, thereby detecting the entire exterior of the screw, thereby ensuring the overall quality of the straightened screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is the overall structural view of the utility model;

[0021] Figure 2 This is a schematic diagram of a half-section structure of the clamping assembly of the present invention;

[0022] Figure 3 This is a half-section structural diagram of the forward moving component of the present invention;

[0023] Figure 4 For the utility model Figure 3 A magnified view of center.

[0024] Description of reference numerals:

[0025] 1. Workbench; 11. Slide bar; 2. Hand press; 21. Dial indicator; 3. Clamping assembly; 31. Base; 32. First rotating shaft; 321. First clamping bar; 322. Second clamping bar; 323. First anti-slip pad; 33. Round bar; 331. Connecting rod; 332. First spring; 4. Slider; 41. Support; 5. Forward assembly; 51. Second rotating shaft; 511. Active bevel gear; 52. Turntable; 521. Second anti-slip pad; 53. Fixed plate; 531. Third rotating shaft; 532. Driven bevel gear; 54. Fixed plate; 541. Cavity; 542. Movable rod; 543. Second spring; 544. Block. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figures 1 to 4 , the utility model provides a technical solution:

[0028] A manual straightening device includes a workbench 1, the upper end of the workbench 1 is fixedly connected to a slide rod 11, the upper end of the slide rod 11 is provided with a clamping assembly 3, the number of the clamping assemblies 3 is two, the clamping assembly 3 includes a base 31 movably connected to the upper end of the slide rod 11, the inner upper end of the base 31 is movably connected to a first rotating shaft 32, the number of the first rotating shaft 32 is two, the outer upper end of the first rotating shaft 32 at the front end is movably connected to a first clamping rod 321, the outer upper end of the first rotating shaft 32 at the rear end is movably connected to a second clamping rod 322, the inner part of the base 31 is movably connected to a round rod 33, The round rod 33 is movably connected to the first clamping rod 321 and the second clamping rod 322 by a connecting rod 331. The ends of the first clamping rod 321 and the second clamping rod 322 that are close to each other are fixedly connected to the first anti-slip pad 323. The outside of the round rod 33 is movably connected to the first spring 332. The upper rear side of the workbench 1 is fixedly connected to the hand press 2. The front lower part of the hand press 2 is fixedly connected to the dial indicator 21. The round rod 33 slides and fits inside the base 31. The elastic force of the first spring 332 is greater than the sum of the gravity acting on the first clamping rod 321, the first spring 332 and the connecting rod 331.

[0029] By adopting the above technical solution, before straightening the screw rod, it is necessary to first inspect the screw rod. First, the screw rod is placed on the upper ends of the two second anti-slip pads 521, and then the screw rod is contacted by the dial indicator 21. The bending position of the screw rod is judged by observing the data changes of the dial indicator 21. When the bending position is detected, the operator controls the hand press 2 on the upper end of the workbench 1 to straighten the screw rod. However, during the straightening process, after the bending point of the screw rod is applied with force, the screw rod will rotate and deviate in the direction of the force. At this time, the screw rod is continuously offset after the hand press 2 is applied with force. The round rod 33 inside the base 31 is pressed down, and the round rod 33 descends to compress the first spring 332 and bring the two connecting rods 331 to swing downward. The two connecting rods 331 swing downward and bring the first clamping rod 321 and the second clamping rod 322 closer to each other with the first rotating shaft 32 as the fulcrum to clamp the screw rod. As the first anti-slip pad 323 fits tightly against the screw rod, the purpose of clamping and fixing the screw rod through the clamping assembly 3 is achieved when force is applied to the screw rod for straightening work, thereby preventing the screw rod from being forced to deviate to the bent side, thereby improving the work efficiency of screw rod straightening.

[0030] Specifically, such as Figure 4As shown, the upper end of the slide rod 11 is movably connected to a slider 4, and the number of the sliders 4 is two. The upper ends of the two sliders 4 are movably connected to a support 41. The interior of the support 41 at the right end and the right end are jointly provided with a forward moving component 5. The forward moving component 5 includes a second rotating shaft 51 movably connected to the interior of the support 41. The number of the second rotating shafts 51 is two. The exteriors of the two second rotating shafts 51 are fixedly connected to a turntable 52. The exteriors of the two turntables 52 are fixedly connected to a second anti-slip pad 521. The right side of the exterior of the second rotating shaft 51 at the front end is fixedly connected to an active bevel gear 511. The forward moving component 5 also includes a fixed plate 53 fixedly connected to the right end of the support 41. The number of the fixed plates 53 There are two, and a third rotating shaft 531 is movably connected between the two fixed plates 53. The outside of the third rotating shaft 531 is fixedly connected to the driven bevel gear 532 and the fixed plate 54. A cavity 541 is opened inside the fixed plate 54. There are multiple cavities 541. The interiors of the multiple cavities 541 are all movably connected with movable rods 542. The ends of the multiple movable rods 542 that are close to each other are all movably connected with second springs 543, and the ends of the multiple movable rods 542 that are away from each other are all fixedly connected with blocking blocks 544. The active bevel gear 511 and the driven bevel gear 532 are meshed with each other, and the elastic force of the second spring 543 is greater than the sum of the gravity exerted on the movable rod 542 and the blocking block 544.

[0031] By adopting the above technical solution, when straightening the screw rod, it is first necessary to place the screw rod between the two second anti-slip pads 521, and then by rotating the screw rod, the screw rod contacts the second anti-slip pad 521 and the two second anti-slip pads 521 are rotated together, and the rotation of the two second anti-slip pads 521 causes the turntable 52 inside the support 41 to rotate together with the second rotating shaft 51, and the active bevel gear 511 outside the second rotating shaft 51 near the front end rotates and engages to drive the driven bevel gear 532 to rotate, and the driven bevel gear 532 rotates to drive the third rotating shaft 531 between the two fixed plates 53 and the fixed disk 54 to rotate, and the rotation of the fixed disk 54 causes the movable rod 542, the second spring 543 and the block 544 inside the cavity 541 to rotate together, and the block 544 rotates together. After 544 contacts the screw, the block 544 and the movable rod 542 at the lower end compress the second spring 543, and after the block 544 passes through the thread groove of the screw, the second spring 543 pushes the movable rod 542 to move forward, so that the block 544 is stuck in the thread groove of the screw, and as multiple blocks 544 continue to rotate, the screw is continuously translated and swung, and the operator continues to rotate the screw, so that the dial indicator 21 continues to fully contact the outside of the screw, and by translating the slider 4 at the upper end of the slide rod 11, the detection effect of the dial indicator 21 is improved, so that before detecting the bending position of the screw, by rotating the screw, the forward moving component 5 can continuously translate the screw to contact the dial indicator 21, thereby detecting the entire outside of the screw, thereby ensuring the overall quality of the straightened screw.

[0032] Working principle: Before straightening the screw rod, it is necessary to inspect the screw rod first. First, the screw rod is placed on the upper ends of the two second anti-slip pads 521, and then the dial indicator 21 is used to contact the screw rod. The bending position of the screw rod is judged by observing the data changes of the dial indicator 21. When the bending position is detected, the operator controls the hand press 2 to straighten the screw rod. However, during the straightening process, after force is applied to the bending point of the screw rod, the screw rod will rotate and deviate in the direction of the force. At this time, the screw rod continues to press the round rod 33 after being subjected to force by the hand press 2. The round rod 33 descends and compresses the first spring 332 and swings downward with the two connecting rods 331. The two connecting rods 331 swing downward and then bring the first clamping rod 321 and the second clamping rod 322 close to each other with the first rotating shaft 32 as the fulcrum to clamp the screw rod, thereby achieving the purpose of clamping and fixing the screw rod by the clamping assembly 3 when force is applied to the screw rod for straightening, thereby preventing the screw rod from being forced to deviate to the bent side, thereby improving the working efficiency of the screw rod straightening.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A manual straightening device, comprising a workbench (1), characterized in that: The upper end of the workbench (1) is fixedly connected to a slide bar (11), and a clamping assembly (3) is provided at the upper end of the slide bar (11). The number of the clamping assemblies (3) is two. The clamping assembly (3) includes a base (31) movably connected to the upper end of the slide bar (11), and the inner upper end of the base (31) is movably connected to a first rotating shaft (32). The number of the first rotating shaft (32) is two; The outer upper end of the first rotating shaft (32) at the front end is movably connected to a first clamping rod (321), and the outer upper end of the first rotating shaft (32) at the rear end is movably connected to a second clamping rod (322). The interior of the base (31) is movably connected to a round rod (33), and connecting rods (331) are movably connected between the round rod (33) and the first clamping rod (321) and the second clamping rod (322).

2. A manual straightening device according to claim 1, characterized in that: The first clamping rod (321) and the second clamping rod (322) are both fixedly connected to a first anti-slip pad (323) at their ends close to each other, and the outside of the round rod (33) is movably connected to a first spring (332).

3. The manual straightening device according to claim 1, characterized in that: A hand press (2) is fixedly connected to the rear side of the upper end of the workbench (1), and a dial indicator (21) is fixedly connected to the lower front end of the hand press (2).

4. The manual straightening device according to claim 1, characterized in that: The upper end of the slide rod (11) is movably connected to a slider (4), the number of the sliders (4) is two, and the upper ends of the two sliders (4) are both movably connected to a support (41).

5. A manual straightening device according to claim 4, characterized in that: A forward moving assembly (5) is provided inside the support (41) at the right end and at the right end. The forward moving assembly (5) includes a second rotating shaft (51) movably connected to the inside of the support (41). The number of the second rotating shafts (51) is two. The outsides of the two second rotating shafts (51) are fixedly connected to a rotating disk (52). The outsides of the two rotating disks (52) are fixedly connected to a second anti-slip pad (521). The right side of the outside of the front second rotating shaft (51) is fixedly connected to an active bevel gear (511).

6. A manual straightening device according to claim 5, characterized in that: The forward moving assembly (5) further comprises a fixed plate (53) fixedly connected to the right end of the support (41), the number of the fixed plates (53) being two, a third rotating shaft (531) being movably connected between the two fixed plates (53), the outside of the third rotating shaft (531) being fixedly connected to a driven bevel gear (532) and a fixed plate (54), a cavity (541) being provided inside the fixed plate (54), the number of the cavities (541) being multiple, the insides of the multiple cavities (541) being movably connected to movable rods (542), the ends of the multiple movable rods (542) approaching each other being movably connected to a second spring (543), and the ends of the multiple movable rods (542) moving away from each other being fixedly connected to a clamping block (544).

7. The manual straightening device according to claim 2, characterized in that: The round rod (33) is slidably fitted inside the base (31), and the elastic force of the first spring (332) is greater than the sum of the gravity exerted on the first clamping rod (321), the first spring (332) and the connecting rod (331).

8. The manual straightening device according to claim 6, characterized in that: The active bevel gear (511) and the driven bevel gear (532) are meshed with each other, and the elastic force of the second spring (543) is greater than the sum of the gravity exerted on the movable rod (542) and the clamping block (544).

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