Steel bar clamping and rotating mechanism

Abstract

A steel bar clamping and rotating mechanism comprises a driving component, a clamping component and a braking component, the driving component is used for driving the clamping component to clamp a workpiece at a preset clamping position in a clamping state and driving the clamping component to drive the workpiece to rotate in a rotating state, and the braking component is used for braking the clamping component. The clamping component is used for clamping a workpiece at a preset clamping position, and the braking component is used for keeping the clamping component at the preset clamping position in a clamping state. According to the steel bar clamping and rotating mechanism, a workpiece can be clamped through the clamping component, the workpiece can be driven to rotate in the re-clamping state, the clamping stability is good, the labor intensity of constructors can be reduced, and manpower and material resources are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar clamping and rotating mechanisms, in particular to a steel bar clamping and rotating mechanism. Background Art

[0002] Rebar is a tool used to tighten rebar. It is mainly done by manually clamping the rebar and manually rotating the rebar clamping and rotating mechanism to drive the rebar to be tightened on the rebar sleeve. Due to the existing rebar clamping and rotating mechanism for tightening rebar, the problem of loose clamping is easy to occur when tightening the rebar. The problem of loose clamping is that manual clamping is easily affected by the operator's state. In addition, relying on manual tightening leads to low overall construction efficiency. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a steel bar clamping and rotating mechanism, which has good clamping stability, can reduce the labor intensity of constructors, and reduces manpower and material resources.

[0004] The utility model provides a steel bar clamping and rotating mechanism, comprising a driving member, a clamping member and a braking member, wherein the driving member is used to drive the clamping member to clamp a workpiece at a preset clamping position in a clamping state, and to drive the clamping member to rotate the workpiece in a rotating state, the clamping member is used to clamp the workpiece at a preset clamping position, and the braking member is used to keep the clamping member at the preset clamping position in the clamping state.

[0005] In one embodiment, the clamping member includes a planetary carrier, a claw, a roller, a roller positioning shaft, a spring and a spring locking plate. A notch is provided on the planetary carrier. The spring locking plate is assembled on the planetary carrier, and the spring locking plate is positioned opposite to the notch. The spring connects the spring locking plate and the claw. The claw is located in the notch. The roller is rotatably connected to the claw through the roller positioning shaft. The roller abuts the driving member. The braking member is connected to the planetary carrier.

[0006] In one embodiment, the driving component includes a servo motor, a driving wheel set, a large gear, an upper box, a lower box and a limit member. The upper box is connected to the lower box to form an assembly cavity. The servo motor is assembled on the lower box. The servo motor is connected to the driving wheel set through a driving shaft. The driving wheel set drives the large gear to rotate. The driving wheel set and the large gear are both located in the assembly cavity. The limit member is assembled in the assembly cavity to maintain the stability of the planetary carrier and the large gear during rotation. At least two points are provided on the inner wall of the large gear. The roller abuts against the corresponding points on the inner wall of the large gear to maintain the corresponding state.

[0007] In one embodiment, the limiting member includes an upper pressure cover plate, a slide cover, a lower pressure cover plate, a pulley positioning shaft and a pulley, the upper pressure cover plate is assembled on the upper box body, the lower pressure cover plate is assembled on the lower box body, the slide cover is assembled at both ends of the planetary frame, the upper pressure cover plate and the lower pressure cover plate are respectively connected to the corresponding pulleys through the corresponding pulley positioning shafts, and the pulleys are correspondingly rotatably assembled on the slide cover.

[0008] In one embodiment, the driving component further includes a servo planetary reduction component, and the servo planetary reduction component is assembled between the servo motor and the driving wheel set.

[0009] In one embodiment, the servo planetary reduction component includes a ring gear, a planetary wheel, a pin shaft and a planet carrier, the ring gear is assembled between the servo motor and the lower box, the planet carrier is assembled on the drive shaft, the planetary wheel is assembled on the planet carrier through the pin shaft, and the planetary wheel is engaged with the ring gear.

[0010] In one embodiment, the braking component includes a brake, a brake pressure cover, a main brake wheel, a brake wheel bracket and a brake wheel group, the brake wheel bracket is installed on the upper box body, the brake is assembled in the brake pressure cover, the brake pressure cover is assembled on the brake wheel bracket, and the brake is connected to the brake wheel group through the main brake wheel, the main brake wheel is rotatably assembled on the brake wheel bracket, the brake wheel group is rotatably assembled in the assembly cavity, and the brake wheel group is fixedly connected to the planetary carrier.

[0011] The steel bar clamping and rotating mechanism provided by the utility model can not only clamp the workpiece through the clamping member, but also drive the workpiece to rotate in the re-clamped state, has good clamping stability, can reduce the labor intensity of the constructors, and save manpower and material resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 This is a structural schematic diagram of the steel bar clamping and rotating mechanism provided by the utility model.

[0014] Figure 2 This is a structural schematic diagram of the driving wheel group of the steel bar clamping and rotating mechanism provided by the utility model.

[0015] Figure 3A schematic diagram of the structure of the large gear of the steel bar clamping and rotating mechanism provided by the utility model

[0016] Figure 4 This is a structural schematic diagram of the brake wheel assembly of the steel bar clamping and rotating mechanism provided by the utility model.

[0017] Figure 5 This is a structural schematic diagram of the clamping component of the steel bar clamping and rotating mechanism provided by the utility model.

[0018] Figure 6 This is a schematic structural diagram of the clamping claws of the steel bar clamping and rotating mechanism provided by the present invention.

[0019] Figure 7 This is a schematic diagram of the assembly of the large gear and planetary carrier of the steel bar clamping and rotating mechanism provided by the utility model.

[0020] Figure 8 This is a structural schematic diagram of the planetary frame of the steel bar clamping and rotating mechanism provided by the utility model.

[0021] Figure 9 This is a schematic diagram of the clamping of the steel bar clamping and rotating mechanism provided by the present invention. DETAILED DESCRIPTION

[0022] Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the description of the present invention, all other embodiments derived by persons of ordinary skill in the art without inventive effort are also within the scope of protection of the present invention.

[0023] In the description of this utility model, unless otherwise specified or limited, the terms "disposed," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms based on the specific circumstances.

[0024] The directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience and simplification of description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the utility model.

[0025] The terms "first," "second," "third," etc. are merely used to distinguish between elements of similar nature and do not indicate or imply relative importance or a particular order.

[0026] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of elements other than the listed elements and may also include additional elements not specifically listed.

[0027] See also Figure 1 and Figure 9 The steel bar clamping and rotating mechanism provided by the utility model includes a driving component 1, a clamping component 3 and a braking component 2. The driving component 1 is used to drive the clamping component 3 to clamp the workpiece at a preset clamping position in the clamping state, and in the rotating state, drives the clamping component 3 to rotate the workpiece. The clamping component 3 is used to clamp the workpiece at the preset clamping position, and the braking component 2 is used to keep the clamping component 3 at the preset clamping position in the clamping state.

[0028] It can be known that when performing clamping work, the driving member 1 can be a driving clamping member to clamp the workpiece, and the workpiece can be a steel bar. The braking member can keep the clamping member 3 in a stable clamping state, that is, it can be understood that the clamping member 3 remains unchanged in the preset clamping position, thereby ensuring the clamping effect. When the steel bar needs to be tightened on the corresponding steel bar sleeve, the driving member 1 drives the clamping member 3 to rotate, and the clamping member 3 remains in a stable clamping state when rotating relative to the driving member 1. When the steel bar needs to rotate, the braking member may not be working, because the driving member 3 continuously provides a continuous torque, and the state of the torque is consistent with the braking member 2, and is greater than the dynamic force of the braking member 2, so the braking member can also be working.

[0029] See also Figures 5 to 8 In some embodiments, the clamping member 3 includes a planetary carrier 303, a claw 302, a roller 301, a roller positioning shaft, a spring 308 and a spring locking plate 305. A notch 304 is provided on the planetary carrier 303. The spring locking plate 305 is assembled on the planetary carrier 303, and the spring locking plate 305 is positioned opposite to the notch 304. The spring 308 connects the spring locking plate 305 and the claw 302. The claw 302 is located in the notch 304. The roller 301 is rotatably connected to the claw 302 through the roller positioning shaft. The roller 301 abuts the driving member 1, and the braking member 2 is connected to the planetary carrier 303.

[0030] It can be understood that the springs 308 are located at both ends of the claw 302, and the roller 301 is connected to the spring lock piece 305 through the corresponding spring 308. The elastic force of the spring 308 makes the roller 301 abut against the driving member 1. The movement of the driving member will change the contact position with the roller 301, thereby changing the length of the springs 308 on both sides. The change in the length of the spring 308 will change the position of the two ends of the claw 302. In the clamped state, the claw 302 is located outside the notch 304. There are two claws 302, and the two are symmetrically arranged. The two claws 302 realize clamping of the workpiece. The braking member 2 can make the position of the roller 301 and the driving member 1 relatively fixed, thereby ensuring the stability of the clamping.

[0031] See also Figure 2 and Figure 3 In some embodiments, the driving component includes a servo motor 101, a driving wheel set, a large gear 118, an upper box body 110, a lower box body 107 and a limit member. The upper box body 110 is connected to the lower box body 107 to form an assembly cavity. The servo motor 101 is assembled on the lower box body 107. The servo motor 101 is connected to the driving wheel set through a driving shaft. The driving wheel set drives the large gear 118 to rotate. The driving wheel set and the large gear 118 are both located in the assembly cavity. The limit member is assembled in the assembly cavity to maintain the stability of the planetary carrier 303 and the large gear 118 when they rotate. At least two points are set on the inner wall of the large gear 118, and the roller 301 abuts against the corresponding points on the inner wall of the large gear 118 to maintain the corresponding state.

[0032] It can be understood that the servo motor 101 drives the large gear 118 to rotate through the driving wheel group, and the driving wheel group may include a first output gear 108, a second output gear 116, a first transition wheel and a second transition wheel 117. The servo motor 101 drives the first output gear 108 to rotate through the driving shaft 109, the first output gear 108 drives the second output gear 116 to rotate, the second output gear 116 drives the first transition wheel and the second transition wheel 117 to rotate, and the first transition wheel and the second transition wheel 117 drive The large gear 118 rotates, and the planet carrier 303 is located in the large gear 118. The two points set on the inner wall of the large gear 118 can be the zero position groove and the inclined boss 119. In the initial state, that is, the unclamped state, the roller 301 is located in the zero position groove. When in the clamped state, the roller 301 moves along the inclined boss 119 of the large gear 118 to the highest point of the inclined boss 119, so that the two claws 302 are in a relatively stable clamping state, and the first output gear 108 and the second output gear 116, the first transition wheel and the second transition wheel 117 can be fixed on the upper box body 110 and the lower box body 107 by the gear sleeve. The planetary carrier 303 and the large gear 118 can maintain a stable rotation state under the action of the limiter. The brake component 2 can prevent the planetary carrier 303 and the large gear 118 from rotating relative to each other. In order to limit the angle of relative rotation between the planetary carrier 303 and the large gear 118, an arc-shaped limit groove 307 can be provided on the planetary carrier 303 along its circumferential direction. Correspondingly, the large gear 1 18 is connected to a limit pin, and the limit pin moves along the limit slot 307, thereby limiting the relative angle of rotation between the planet carrier 303 and the large gear 118. When the workpiece needs to be rotated, the claw is clamped on the workpiece. In this case, the claw 302 and the planet carrier 303 remain stable, and the servo motor 101 can drive the planet carrier 303 to rotate through the large gear 118, and the planet carrier 303 drives the workpiece to rotate. When clamped, the center line of the large gear 118 and the center line of the planet carrier 303 form an angle of 45°.

[0033] See also Figure 1 In some embodiments, the limiting member includes an upper pressure cover plate 111, a slide cover 114, a lower pressure cover plate 115, a pulley positioning shaft 112 and a pulley 113. The upper pressure cover plate 111 is assembled on the upper box body 110, the lower pressure cover plate 115 is assembled on the lower box body 107, the slide cover 114 is assembled at both ends of the planetary frame 303, the upper pressure cover plate 111 and the lower pressure cover plate 115 are respectively connected to the corresponding pulley 113 through the corresponding pulley positioning shaft, and the pulley 113 is correspondingly rotatably assembled on the slide cover 114.

[0034] It can be understood that when the slide cover 114 is on, an arc-shaped slide groove is provided, and the pulley 113 can move along the arc-shaped slide groove. An axial gap is reserved between the pulley 113 and the upper pressure cover plate 111, and an axial gap is reserved between the pulley positioning shaft and the slide cover. The limit member of this structure can limit the movement of the planetary carrier 303 during rotation. Under the premise that the planetary carrier 303 is stable, the large gear 118 also remains in a stable state.

[0035] See also Figure 1 In some embodiments, the driving component further includes a servo planetary reduction component, which is assembled between the servo motor 101 and the driving wheel assembly.

[0036] It is understood that the planetary reduction member can reduce the overall rotation speed, thereby increasing the overall torque. The rotation speed of the servo motor 101 can correspond to the torque acting on the workpiece.

[0037] Please pay the month Figure 1 In some embodiments, the servo planetary reduction component includes a ring gear 103, planetary wheels 102 & 105, pins 104 & 106 and a star carrier. The ring gear 103 is assembled between the servo motor 101 and the lower box 107, the star carrier is assembled on the drive shaft 109, the planetary wheels 102 & 105 are assembled on the star carrier through the pins 104 & 106, and the planetary wheels 303 are engaged with the ring gear 103.

[0038] It can be understood that the planetary gear 303 and the pin shafts 104 & 106 rotate relative to each other, a star rack can also be set on the drive shaft 109, and the number of the pin shafts 104 & 106 can be two, two at different heights. The servo planetary reduction component of this structure has a good deceleration effect.

[0039] See also Figure 1 and Figure 4 In some embodiments, the braking component 2 includes a brake 202, a brake pressure cover 201, a main brake wheel 203, a brake wheel bracket 204 and a brake wheel group. The brake wheel bracket 204 is installed on the upper box body 110, the brake 202 is assembled in the brake pressure cover 201, the brake pressure cover 201 is assembled on the brake wheel bracket 204, and the brake 202 is connected to the brake wheel group through the main brake wheel. The main brake wheel 203 is rotatably assembled on the brake wheel bracket 204, the brake wheel group is rotatably assembled in the assembly cavity, and the brake wheel group is fixedly connected to the planetary carrier 303.

[0040] It can be understood that the brake 202 can provide a fixed braking force or an adjustable braking force. The main brake wheel 203 can be rotatably assembled on the brake wheel bracket 204. The brake wheel group includes a large brake wheel 206 and a transition brake wheel 205. The large brake wheel 206 can be clamped on the spline 306 of the planetary wheel 303. The large brake wheel 206 engages with the main brake wheel 203 through the transition brake wheel 205. The main brake wheel 203 and the brake wheel bracket 204 can be assembled through a brake sleeve. The brake component 2 of this structure is simple in structure and can maintain a stable clamping state. The planetary frame 303 can be two parts, one part is used to dig a notch 303 and place the claw 302, and the other part is used to engage with the brake wheel group.

[0041] From the above description, it can be known that the steel bar clamping and rotating mechanism provided by the utility model can not only clamp the workpiece through the clamping member 3, but also drive the workpiece 1 to rotate in the clamped state. It has good clamping stability, can reduce the labor intensity of the construction workers, and reduce manpower and material resources.

[0042] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention are intended to be covered by the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A steel bar clamping and rotating mechanism, characterized in that: It includes a driving component, a clamping component and a braking component. The driving component is used to drive the clamping component to clamp the workpiece at a preset clamping position in the clamping state, and to drive the clamping component to rotate the workpiece in the rotating state. The clamping component is used to clamp the workpiece at the preset clamping position. The braking component is used to keep the clamping component at the preset clamping position in the clamping state.

2. The steel bar clamping and rotating mechanism according to claim 1, characterized in that: The clamping member includes a planetary carrier, a claw, a roller, a roller positioning shaft, a spring and a spring locking piece. A notch is provided on the planetary carrier. The spring locking piece is assembled on the planetary carrier, and the spring locking piece is opposite to the notch. The spring connects the spring locking piece and the claw. The claw is located in the notch. The roller is rotatably connected to the claw through the roller positioning shaft. The roller abuts the driving member. The braking member is connected to the planetary carrier.

3. The steel bar clamping and rotating mechanism according to claim 2, characterized in that: The driving component includes a servo motor, a driving wheel set, a large gear, an upper box, a lower box and a limit member. The upper box is connected to the lower box to form an assembly cavity. The servo motor is assembled on the lower box. The servo motor is connected to the driving wheel set through a driving shaft. The driving wheel set drives the large gear to rotate. The driving wheel set and the large gear are both located in the assembly cavity. The limit member is assembled in the assembly cavity to maintain the stability of the planetary carrier and the large gear during rotation. At least two points are provided on the inner wall of the large gear. The roller abuts against the corresponding points on the inner wall of the large gear to maintain the corresponding state.

4. The steel bar clamping and rotating mechanism according to claim 3, characterized in that: The limiting component includes an upper pressure cover plate, a slide cover, a lower pressure cover plate, a pulley positioning shaft and a pulley. The upper pressure cover plate is assembled on the upper box body, the lower pressure cover plate is assembled on the lower box body, and the slide cover is assembled on both ends of the planetary frame. The upper pressure cover plate and the lower pressure cover plate are respectively connected to the corresponding pulleys through the corresponding pulley positioning shafts, and the pulleys are rotatably assembled on the slide cover.

5. The steel bar clamping and rotating mechanism according to claim 4, characterized in that: The driving component further includes a servo planetary reduction component, which is assembled between the servo motor and the driving wheel set.

6. The steel bar clamping and rotating mechanism according to claim 5, characterized in that: The servo planetary reduction component includes a ring gear, planetary wheels, a pin shaft and a star frame. The ring gear is assembled between the servo motor and the lower box body, the star frame is assembled on the drive shaft, the planetary wheels are assembled on the star frame through the pin shaft, and the planetary wheels are engaged with the ring gear.

7. The steel bar clamping and rotating mechanism according to claim 3, wherein: The braking component includes a brake, a brake pressure cover, a main brake wheel, a brake wheel bracket and a brake wheel group. The brake wheel bracket is installed on the upper box body. The brake is assembled in the brake pressure cover. The brake pressure cover is assembled on the brake wheel bracket, and the brake is connected to the brake wheel group through the main brake wheel. The main brake wheel is rotatably assembled on the brake wheel bracket. The brake wheel group is rotatably assembled in the assembly cavity, and the brake wheel group is fixedly connected to the planetary carrier.

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