Building steel bar polishing device

Abstract

The utility model belongs to the technical field of polishing devices, and particularly relates to a building steel bar polishing device which comprises a fixing base, a rotating disc, a plurality of radial displacement mechanisms, a polishing mechanism, a circumferential driving mechanism and two limiting mechanisms. The rotating disc is rotationally arranged on the fixing base, and a through hole is formed in the center of the rotating disc; the radial displacement mechanisms are arranged on the end face of the rotary disc in the circumferential direction of the rotary disc at intervals and can adjust the radial positions on the rotary disc. The grinding mechanisms can grind the surfaces of the reinforcing steel bars, and the grinding mechanisms are arranged at the ends, close to the through holes, of the radial displacement mechanisms; the circumferential driving mechanism is used for driving the turntable to rotate circumferentially; the two limiting mechanisms are arranged at the two ends of the rotary disc correspondingly and can limit circumferential rotation of the steel bars. Compared with the prior art, when the grinding device grinds the reinforcing steel bar once, the reinforcing steel bar can be uniformly ground in the circumferential direction of the reinforcing steel bar, the reinforcing steel bar can be completely ground only by pushing materials in the axial direction of the reinforcing steel bar at intervals, the grinding effect is good, and the design requirement is easily met.

Description

Technical Field

[0001] The utility model belongs to the technical field of grinding devices, and in particular relates to a building steel bar grinding device. Background Art

[0002] Rebar is an essential material in building construction, and its surface quality directly affects the strength and stability of the entire building. Therefore, during construction, the surface of the rebar needs to be polished to ensure it is smooth, burr-free, and meets design requirements.

[0003] Chinese patent publication number CN220592690U discloses a steel bar surface grinding device for construction, comprising a base plate, a first motor being fixedly mounted on one side of the base plate via a bracket, the output end of the first motor penetrating the inner wall of the base plate and fixedly connected to a bidirectional screw. This steel bar surface grinding device for construction has the advantages of starting the first motor to rotate the bidirectional screw fixedly connected to the output end of the first motor, thereby moving two threaded blocks threadedly connected to the bidirectional screw toward the center of the bidirectional screw, and then moving a connecting plate fixedly connected to the two threaded blocks toward the center of a chute, thereby causing an adjustment plate fixedly connected to the two connecting plates to move relative to each other, reserving an appropriate spacing according to the size of the steel bar, thereby accommodating grinding of steel bars of different sizes, and having the advantage of being easily adjusted according to the size of the steel bar.

[0004] However, during use, it was found that this grinding device can only grind two points on the circumference of the steel bar at a time. If the entire steel bar needs to be ground, the steel bar must be rotated a certain angle along the circumference of the steel bar after one grinding. This can easily lead to incomplete grinding, resulting in some burrs still existing on the steel bar after grinding, making the steel bar fail to meet the design requirements. Therefore, this grinding device needs to be improved. Utility Model Content

[0005] The purpose of this utility model is to provide a construction steel bar grinding device to address the above-mentioned technical problems. When this grinding device grinds the steel bar once, it will grind it evenly along the circumference of the steel bar. It only needs to push the material at intervals along the axial direction of the steel bar to completely grind the steel bar. The grinding effect is good and it is easy to meet the design requirements.

[0006] In view of this, the present invention provides a construction steel bar grinding device, comprising:

[0007] A fixed seat, a turntable is rotatably provided on the fixed seat, and a through hole is opened in the center of the turntable;

[0008] Multiple sets of radial displacement mechanisms are arranged on the end surface of the turntable at intervals along the circumference of the turntable, and the radial displacement mechanisms can adjust the radial position on the turntable;

[0009] The grinding mechanism can grind the surface of the steel bar. Each set of radial displacement mechanisms is provided with a grinding mechanism at one end close to the through hole.

[0010] A circumferential driving mechanism, which is used to drive the turntable to rotate circumferentially;

[0011] Two sets of limiting mechanisms are respectively arranged at both ends of the turntable, and the limiting mechanisms can limit the circumferential rotation of the steel bars.

[0012] In this technical solution, workers pass the steel bars through the through hole and hold the steel bars, adjust multiple sets of radial displacement mechanisms toward the through hole, so that multiple sets of grinding mechanisms simultaneously contact the circumferential surface of the steel bars for preliminary positioning, and then two sets of limiting mechanisms clamp the steel bars, start multiple sets of grinding mechanisms to grind the surface of the steel bars, and at the same time start the circumferential drive mechanism to drive the turntable to rotate. The turntable drives the multiple sets of grinding mechanisms to move circumferentially to repeatedly grind the outer wall of the steel bars. After one grinding, the limiting mechanism is controlled to loosen the steel bars, push the steel bars forward a certain distance along the axial direction of the steel bars, and then control the limiting mechanism to clamp the steel bars and continue to grind the steel bars. The entire steel bar is repeatedly ground in this way.

[0013] In the above technical solution, further, the radial displacement mechanism includes:

[0014] A mounting frame, the mounting frame is fixed on the turntable;

[0015] A displacement seat is slidably connected to the mounting frame along the radial direction of the turntable, and a first threaded hole is formed at one end of the displacement seat away from the center of the turntable;

[0016] The displacement motor is arranged on the mounting frame. The output shaft of the displacement motor is connected with a first screw rod, and the first screw rod is threadedly connected with the first threaded hole.

[0017] In the above technical solution, further, the grinding mechanism includes:

[0018] A grinding wheel is rotatably arranged at an end of the displacement seat away from the displacement motor, and the grinding wheel partially extends out of the displacement seat in the radial direction;

[0019] The grinding motor is arranged on the displacement frame and is used to drive the grinding wheel to rotate.

[0020] In the above technical solution, further, the circumferential drive mechanism includes:

[0021] Drive frame, which is located on one side of the turntable;

[0022] The driving gear is rotatably mounted on the driving frame, and a transmission gear set is provided on the outer peripheral wall of the turntable, and the driving gear is meshed and connected with the transmission gear set;

[0023] The driving motor is arranged on the driving frame and is used to drive the driving gear to rotate.

[0024] In the above technical solution, further, the limiting mechanism includes:

[0025] A limit seat, the top of which is provided with a mounting slot;

[0026] The bidirectional screw is rotated in the installation groove, and two ends of the bidirectional screw are symmetrically provided with two sections of opposite threads;

[0027] Two limit plates, both of which are slidably arranged in the mounting grooves, and a second threaded hole is provided at the bottom of the limit plate to cooperate with the thread of the bidirectional screw. When the bidirectional screw rotates, the two limit plates can be driven to move toward or away from each other;

[0028] The limit motor is arranged on the limit seat and is used to drive the bidirectional screw to rotate.

[0029] The beneficial effects of the utility model are:

[0030] 1. Through the cooperation of the turntable, multiple groups of radial displacement mechanisms, multiple groups of grinding mechanisms, circumferential drive mechanisms, and two groups of limit mechanisms, each grinding can repeatedly grind a certain length of the outer peripheral wall of the steel bar, and the grinding effect is good. In addition, multiple groups of grinding mechanisms are distributed at intervals along the circumference of the turntable, and the radial position on the turntable can be adjusted by the radial displacement mechanism. In this way, multiple groups of grinding mechanisms can concentrically position the steel bar, which is beneficial to the clamping of the steel bar.

[0031] 2. By setting limit mechanisms at both ends of the turntable, when grinding a certain end of the steel bar, only one set of limit mechanisms can be used to limit the steel bar in the circumferential direction, which makes it easier to grind the entire steel bar without using external tools.

[0032] 3. By designing the limit mechanism into a combination of a limit seat, a mounting slot, a bidirectional screw, two limit plates, and a limit motor, it is only necessary to drive the bidirectional screw to rotate to simultaneously drive the two limit plates to move toward or away from each other. In this way, it is only necessary to set the two limit plates symmetrically with the axis of the through hole as the center to ensure that the steel bars are concentrically distributed with the through hole when they are restricted from circumferential rotation, thereby reducing the difficulty of clamping the steel bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0034] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model in the first direction.

[0035] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model in the second direction.

[0036] Figure 3 It is a schematic diagram of the top view structure of the utility model.

[0037] Figure 4 This is a schematic diagram of the three-dimensional structure of the turntable and its related components in the utility model.

[0038] Figure 5 for Figure 4 Schematic diagram of the locally enlarged structure at point A in the middle.

[0039] The marks in the figure are:

[0040] 1. Fixing seat; 2. Turntable; 3. Through hole; 4. Radial displacement mechanism; 401. Mounting frame; 402. Displacement seat; 4021. First threaded hole; 403. Displacement motor; 404. First screw; 5. Grinding mechanism; 501. Grinding wheel; 502. Grinding motor; 6. Circumferential drive mechanism; 601. Drive frame; 602. Drive gear; 603. Drive gear set; 604. Drive motor; 7. Limiting mechanism; 701. Limiting seat; 702. Mounting slot; 703. Bidirectional screw; 704. Limiting plate; 705. Second threaded hole; 706. Limiting motor; 8. Base; DETAILED DESCRIPTION

[0041] 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.

[0042] In the description of the present utility model, it should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0043] Example 1

[0044] like Figure 1-Figure 3 As shown, this embodiment provides a construction steel bar grinding device, including: a base 8, a fixed seat 1, a turntable 2, multiple sets of radial displacement mechanisms 4, a grinding mechanism 5, a circumferential drive mechanism 6, two sets of limit mechanisms 7,

[0045] See also Figure 1 The base 8 serves as the bearing and supporting part of the entire grinding device. The fixed seat 1 is fixed on the base 8. A turntable 2 is rotatably provided on the fixed seat 1. A through hole 3 is opened in the center of the turntable 2. The through hole 3 is coaxially distributed with the turntable 2.

[0046] Multiple sets of radial displacement mechanisms 4 are provided on the end surface of the turntable 2 at intervals along the circumference of the turntable 2. The radial displacement mechanisms 4 can adjust the radial position on the turntable 2. The radial displacement mechanisms 4 can be driven manually or electrically. In this embodiment, three sets of radial displacement mechanisms 4 are used as an example.

[0047] The grinding mechanism 5 can grind the surface of the steel bar when in contact with the surface of the steel bar. Each set of radial displacement mechanisms 4 is provided with a set of grinding mechanisms 5 at one end close to the through hole 3.

[0048] The circumferential driving mechanism 6 is provided on the base 8 and is located on one side of the turntable 2, and is used to drive the turntable 2 to rotate circumferentially;

[0049] See also Figure 3 , two sets of limiting mechanisms 7 are respectively provided at both ends of the turntable 2, and the limiting mechanisms 7 can limit the circumferential rotation of the steel bar. Any structure that can limit the circumferential rotation of the steel bar in the prior art can be used as the limiting mechanism 7 in this embodiment;

[0050] After the work is finished, the three grinding mechanisms 5 are adjusted to move in a circumferential direction, and the grinding wheel 2 is rotated to rotate, and the three grinding mechanisms 5 are rotated in a circumferential direction, and the outer wall of the steel bar is repeatedly ground. After the grinding is completed, the limiting mechanism 7 is controlled to loosen the steel bar, and the steel bar is pushed forward a certain distance along the axial direction of the steel bar. The limiting mechanism 7 is controlled to clamp the steel bar and continue to grind the steel bar. In this way, the whole section of steel bar is repeatedly ground.

[0051] In this embodiment, when grinding a certain end of a steel bar, only one set of the limiting mechanisms 7 can be used to circumferentially limit the steel bar, so that the entire steel bar can be completely ground without using external tools.

[0052] Example 2

[0053] This embodiment provides a construction steel bar grinding device, which, in addition to the technical solutions of the above embodiments, also discloses a structure of a radial displacement mechanism 4;

[0054] like Figure 4 and Figure 5 As shown, in this embodiment, the radial displacement mechanism 4 includes: a mounting frame 401, a displacement seat 402, a displacement motor 403,

[0055] See also Figure 4 , the mounting frame 401 is fixed on the turntable 2, and the mounting frame 401 is U-shaped;

[0056] See also Figure 5 The displacement seat 402 is connected to the mounting frame 401 by sliding along the radial direction of the turntable 2. A first threaded hole 4021 is formed on the end surface of the displacement seat 402 away from the center of the turntable 2.

[0057] The displacement motor 403 is mounted on the mounting frame 401 . The output shaft of the displacement motor 403 is coaxially connected to a first screw 404 via a coupling. The first screw 404 is threadedly connected to the first threaded hole 4021 .

[0058] In this embodiment, the displacement motor 403 starts to drive the first screw 404 to rotate, and the first screw 404 cooperates with the first threaded hole 4021 to drive the displacement seat 402 to slide on the mounting frame 401. By controlling the forward drive and reverse drive of the displacement motor 403, the displacement seat 402 is driven to move toward the through hole 3 and away from the through hole 3.

[0059] Example 3

[0060] This embodiment provides a construction steel bar grinding device, which, in addition to the technical solutions of the above embodiments, also discloses a structure of a grinding mechanism 5;

[0061] In this embodiment, the grinding mechanism 5 includes: a grinding wheel 501, a grinding motor 502,

[0062] See also Figure 4 , an accommodating groove is provided at one end of the displacement seat 402 away from the displacement motor 403, and the accommodating groove passes through the end face and one side wall of the displacement seat 402, and the grinding wheel 501 is rotatably installed in the accommodating groove. The grinding wheel 501 is a grinding wheel or other wheel body with a grinding function on the outer peripheral wall. The accommodating groove is located at the notch of the side wall of the displacement seat 402 and is provided with a guard plate. The guard plate is detachably connected to the displacement seat 402, and the end of the grinding wheel 501 close to the guard plate is rotatably connected to the guard plate. The outer peripheral wall portion of the grinding wheel 501 extends out of the accommodating groove and contacts the steel bar;

[0063] The grinding motor 502 is mounted on the displacement frame or the guard plate and is used to drive the grinding wheel 501 to rotate;

[0064] In this embodiment, starting the grinding motor 502 can drive the grinding wheel 501 to rotate so that the grinding wheel 501 enters a grinding state. The grinding wheel 501 in the grinding state is brought into contact with the surface of the steel bar to grind the surface of the steel bar.

[0065] Example 4

[0066] This embodiment provides a construction steel bar grinding device, which, in addition to the technical solutions of the above embodiments, also discloses a structure of a circumferential drive mechanism 6;

[0067] In this embodiment, the circumferential driving mechanism 6 includes: a driving frame 601, a driving gear 602, a driving motor 604,

[0068] See also Figure 1 , the driving frame 601 is fixed on the base 8, and the driving frame 601 is two parallel plates. The driving frame 601 is provided on one side of the turntable 2;

[0069] The driving gear 602 is located between the two plates. Both ends of the driving gear 602 are rotatably connected to the two plates. A transmission gear set 603 is provided on the outer peripheral wall of the turntable 2. The driving gear 602 is meshed with the transmission gear set 603.

[0070] The driving motor 604 is provided on the driving frame 601 and is used to drive the driving gear 602 to rotate;

[0071] In this embodiment, starting the drive motor 604 can drive the drive gear 602 to rotate. During the rotation of the drive gear 602, the drive gear 602 drives the turntable 2 to rotate through the transmission gear set 603, so that the grinding mechanism 5 on the turntable 2 can repeatedly grind the steel bars in a circumferential direction.

[0072] Example 4

[0073] This embodiment provides a construction steel bar grinding device, which, in addition to the technical solutions of the above embodiments, also discloses a structure of a limiting mechanism 7;

[0074] The limiting mechanism 7 includes: a limiting seat 701, a bidirectional screw 703, two limiting plates 704, and a limiting motor 706.

[0075] See also Figure 1 , a mounting groove 702 is provided on the top of the limiting seat 701;

[0076] The bidirectional screw 703 is rotatably mounted in the mounting groove 702, and two oppositely directed threads are symmetrically arranged at both ends of the bidirectional screw 703;

[0077] The two limiting plates 704 are both slidably mounted in the mounting grooves 702 , and a second threaded hole 705 is formed at the bottom of the limiting plates 704 to threadably engage with the bidirectional screw 703 ;

[0078] The limiting motor 706 is provided on the limiting seat 701 and is used to drive the bidirectional screw 703 to rotate;

[0079] In this embodiment, the limit motor 706 is started to drive the bidirectional screw 703 to rotate. When the bidirectional screw 703 rotates, it can drive the two limit plates 704 to move toward or away from each other, thereby clamping and releasing the steel bar. When the steel bar is clamped by the two limit plates 704, the circumferential rotation of the steel bar is restricted, and the axial movement of the steel bar is also restricted. When the steel bar is released by the two limit plates 704, the steel bar can move circumferentially or axially.

[0080] In this embodiment, it is only necessary to control the limit motor 706 to drive the bidirectional screw 703 forward or reverse, so that the two limit plates 704 can be driven to move toward or away from each other at the same time. In this way, it is only necessary to symmetrically arrange the two limit plates 704 with the axis of the through hole 3 as the center to ensure that the steel bars are concentrically distributed with the through hole 3 when they are restricted from circumferential rotation, thereby reducing the difficulty of clamping the steel bars.

[0081] The embodiments of the present invention are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A construction steel bar grinding device, characterized in that: include: A fixed seat (1), a turntable (2) rotatably provided on the fixed seat (1), and a through hole (3) is provided at the center of the turntable (2); a plurality of radial displacement mechanisms (4), the plurality of radial displacement mechanisms (4) being arranged at intervals along the circumference of the turntable (2) on the end surface of the turntable (2), the radial displacement mechanisms (4) being capable of adjusting radial positions on the turntable (2); A grinding mechanism (5), wherein the grinding mechanism (5) can grind the surface of the steel bar, and each set of the radial displacement mechanisms (4) is provided with a grinding mechanism (5) at one end close to the through hole (3); A circumferential drive mechanism (6), the circumferential drive mechanism (6) being used to drive the turntable (2) to rotate circumferentially; Two groups of limiting mechanisms (7) are respectively arranged at two ends of the turntable (2), and the limiting mechanisms (7) can limit the circumferential rotation of the steel bars.

2. A construction steel bar grinding device according to claim 1, characterized in that: The radial displacement mechanism (4) comprises: A mounting frame (401), wherein the mounting frame (401) is fixed on the turntable (2); a displacement seat (402), the displacement seat (402) being slidably connected to the mounting frame (401) along the radial direction of the turntable (2), and a first threaded hole (4021) being formed at one end of the displacement seat (402) away from the center of the turntable (2); A displacement motor (403) is provided on the mounting frame (401); a first screw rod (404) is connected to an output shaft of the displacement motor (403); and the first screw rod (404) is threadedly connected to the first threaded hole (4021).

3. A construction steel bar grinding device according to claim 2, characterized in that: The polishing mechanism (5) comprises: a grinding wheel (501), the grinding wheel (501) being rotatably disposed at one end of the displacement seat (402) away from the displacement motor (403), the grinding wheel (501) partially extending out of the displacement seat (402) in a radial direction; A grinding motor (502), the grinding motor (502) is arranged on the displacement seat (402) and is used to drive the grinding wheel (501) to rotate.

4. A construction steel bar grinding device according to claim 1, characterized in that: The circumferential driving mechanism (6) comprises: A driving frame (601), the driving frame (601) being arranged on one side of the turntable (2); A driving gear (602) is rotatably mounted on the driving frame (601), a transmission gear set (603) is provided on the outer peripheral wall of the rotating disk (2), and the driving gear (602) is meshedly connected with the transmission gear set (603); A driving motor (604) is provided on the driving frame (601) and is used to drive the driving gear (602) to rotate.

5. A construction steel bar grinding device according to claim 1, characterized in that: The limiting mechanism (7) comprises: A limiting seat (701), wherein a mounting groove (702) is provided on the top of the limiting seat (701); A bidirectional screw (703), the bidirectional screw (703) being rotatably disposed in the mounting groove (702), and having two sections of oppositely directed threads symmetrically disposed at both ends of the bidirectional screw (703); Two limiting plates (704), both of which are slidably arranged in the mounting groove (702), and a second threaded hole (705) is provided at the bottom of each limiting plate (704) for threaded engagement with the bidirectional screw (703), so that when the bidirectional screw (703) rotates, the two limiting plates (704) can be driven to move toward or away from each other; A limiting motor (706) is provided on the limiting seat (701) and is used to drive the bidirectional screw (703) to rotate.

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