A rotary gripper

Abstract

The present invention relates to the technical field of mechanical grasping, and specifically relates to a rotary gripper. Adjustment grooves are provided on the inner walls of both sides of the box body. Two sliding blocks are slidably connected inside each of the two adjustment grooves. Two clamping shafts are slidably connected between the two adjustment grooves, and both ends of the clamping shafts are fixedly connected to the sliding blocks respectively. Two grasping columns are rotatably connected to the sides of both clamping shafts. Rotating blocks are fixedly connected to the tops of the two grasping columns. Mounting blocks are fixedly connected to the adjacent sides of the tops of the two rotating blocks. Sliding shafts are fixedly connected inside the mounting blocks. Lifting plates are fixedly connected to both ends of the lifting block. Chutes are provided on the adjacent sides of the two lifting plates, and the sliding shafts are clamped inside the chutes. By rotating the rotating mechanism, the grasping mechanism is driven through the control mechanism to perform grasping. Only by pushing and rotating can the power for grasping be provided. At the same time, the clamping range can be adjusted by rotating the adjustment block.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical gripping, and specifically to a rotary gripper. Background Art

[0002] The handheld gripper has a simple structure and a reasonable design. It is convenient for an operator to hold and carry an object, and its small structure makes it convenient to carry. It is mainly used for gripping objects, especially for gripping objects that are harmful to the human body on the outside.

[0003] In the prior art, the gripper generally continues to grip by the gripping force. When carrying materials, it is necessary to lift and also grip tightly, which is rather laborious. At the same time, the traditional gripper can only change a very small range of gripping sizes and cannot adjust the gripping range according to the size of the object at any time. The present invention provides a rotary gripper. Summary of the Invention

[0004] An object of the present invention is to provide a rotary gripper to solve the problems raised in the above background art.

[0005] The technical solution of the present invention is: a rotary gripper, including a control mechanism, a gripping mechanism is installed at the bottom of the control mechanism. The control mechanism includes a box body and a lifting block. The gripping mechanism includes a gripping plate and a gripping column. Adjustment grooves are provided on both inner walls of the box body. Two sliding blocks are slidably connected inside each of the two adjustment grooves. Two clamping shafts are slidably connected between the two adjustment grooves, and both ends of the clamping shafts are fixedly connected to the sliding blocks. Two gripping columns are rotatably connected to the side portions of the two clamping shafts. The tops of the two gripping columns are fixedly connected to a rotating block. The adjacent sides of the tops of the two rotating blocks are fixedly connected to a mounting block. A sliding shaft is fixedly connected inside each of the mounting blocks. Lifting plates are fixedly connected to both ends of the lifting block. A sliding groove is provided on the adjacent side of the two lifting plates, and the sliding shaft is clamped inside the sliding groove of the lifting plate. A threaded column is threadedly connected inside the lifting block. A limiting ring is fixedly connected to the bottom of the threaded column. A positioning block is rotatably connected to the side of the limiting ring. An adjustment shaft is rotatably connected inside the positioning block. One end of the adjustment shaft penetrates the box body and is fixedly connected to an adjustment rotating block at the end. Two opposite threads are provided on the side surface of the adjustment shaft. Two adjustment blocks are threadedly connected to the side of the adjustment shaft. The adjustment blocks are fixedly connected to the middle side surface of the clamping shaft, and the adjustment blocks are clamped between the two gripping columns. When in use: the threaded column rotates, driving the lifting block to rotate, causing the lifting plate to move upward. Since the clamping shaft is fixed by the adjustment block, when the lifting plate moves upward, the rotating block rotates around the clamping shaft, and the sliding shaft moves along the sliding groove inside the lifting plate. At the same time, the gripping columns rotate inward to perform gripping. At the same time, according to the size of the object to be gripped, the adjustment rotating block is rotated. The positioning block is limited by the threaded column and the limiting ring, causing the two adjustment blocks to move in opposite directions. The sliding blocks on both sides slide along the adjustment groove, and the sliding shaft at the top moves along the sliding groove inside the lifting plate to adjust the distance between the gripping columns on both sides and then grip the object.

[0006] Preferably, a rotating mechanism is installed on the top of the control mechanism. The rotating mechanism includes a rotating outer cylinder. The top of the box body is fixedly connected with the rotating outer cylinder. A rotating disk is rotatably connected inside the rotating outer cylinder. A rotating column is fixedly connected to the bottom of the rotating disk. The top of the threaded column is fixedly connected with a telescopic connecting column. The rotating column is movably connected inside the telescopic connecting column. A clamping tooth is provided on the side surface of the rotating disk. An annular groove is formed on the inner wall of the rotating outer cylinder. A clamping groove with the same size as the clamping tooth is formed at the top of the annular groove. A spring mounting ring is rotatably connected to the bottom of the rotating disk. A compression spring is fixedly connected to the bottom of the spring mounting ring. The compression spring is fixedly connected with the box body. The clamping tooth on the side of the rotating disk is in a small triangular shape. A rotating handle is fixedly connected to the top of the rotating disk. When in use: In the initial state, the compression spring pushes the spring mounting ring upward, and at the same time the spring mounting ring moves upward, so that the clamping tooth meshes with the clamping groove. When the threaded column needs to rotate, the rotating handle is pushed to move the rotating disk downward, so that the clamping tooth is disengaged from the clamping groove and the clamping tooth is stuck in the annular groove. The rotating handle is rotated to drive the rotating disk to rotate, drive the rotating column and the telescopic connecting column to rotate, so as to drive the threaded column to rotate. After clamping, the rotating handle is released, and the compression spring pushes the rotating disk upward, so that the rotating disk is fixed through the clamping tooth and the clamping groove. Through the above settings, it is convenient to carry out grasping.

[0007] Preferably, the bottom of the grasping column is T-shaped. An installation groove with the same size as the grasping column is formed on one side of the grasping plate. A clamping hole with the same size as the bottom of the grasping column is formed inside the installation groove. Anti-slip strips are provided on the adjacent sides of the two grasping plates. The anti-slip strips are in a small cylindrical shape. When in use: The grasping plate is clamped into the side installation groove of the grasping column, and at the same time the grasping plate is replaced according to different objects. Then the grasping plate is pulled down, so that the grasping column is engaged with the clamping hole, and the anti-slip strips are used for anti-slip.

[0008] The present invention provides a rotary gripper through improvement. Compared with the prior art, it has the following improvements and advantages:

[0009] First: For the rotary gripper of the present invention, when the threaded column rotates, it drives the lifting block to rotate, so that the lifting plate moves upward. Because the clamping shaft is fixed through the adjustment block, when the lifting plate moves upward, the rotating block rotates around the clamping shaft, and the sliding shaft moves along the inner chute of the lifting plate. At the same time, the grasping columns rotate inward at the same time for grasping. At the same time, according to the size of the object to be grasped, the adjustment block is rotated. The positioning block is limited by the threaded column and the limit ring, so that the two adjustment blocks move in the opposite direction. The sliding blocks on both sides slide along the adjustment groove, and the sliding shaft at the top moves along the inner chute of the lifting plate, adjusting the distance between the grasping columns on both sides, and then clamping the object.

[0010] Second: For a rotary gripper according to the present invention, in the initial state, the compression spring pushes the spring installation ring upward, and at the same time, the spring installation ring moves upward, causing the clamping teeth to engage with the clamping groove. When the threaded column needs to rotate, by rotating the push handle, the rotating disk is moved downward, causing the clamping teeth to disengage from the clamping groove and the clamping teeth to be stuck in the annular groove. By rotating the push handle, the rotating disk is driven to rotate, driving the rotating column and the telescopic connecting column to rotate, thereby driving the threaded column to rotate. After clamping, the push handle is released, and the compression spring pushes the rotating disk upward, fixing the rotating disk through the clamping teeth and the clamping groove. Through the above settings, it is convenient to perform gripping;

[0011] Second: For a rotary gripper according to the present invention, the gripping plate is inserted into the installation groove on the side of the gripping column, and at the same time, the gripping plate is replaced according to different objects. Then, the gripping plate is pulled downward to engage the gripping column with the clamping hole, and anti-slip is achieved through the anti-slip strip;

[0012] Summary: For a rotary gripper according to the present invention, by rotating the rotating mechanism and transmitting it through the control mechanism, the gripping mechanism performs gripping. Only by pushing and rotating can the power for gripping be provided, and at the same time, the clamping range is adjusted by rotating the adjusting block. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further explained below with reference to the drawings and embodiments:

[0014] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0015] Figure 2 is a sectional structural schematic diagram of the box body of the present invention;

[0016] Figure 3 is a structural schematic diagram of the lifting block of the present invention;

[0017] Figure 4 is a structural schematic diagram of the adjusting block of the present invention;

[0018] Figure 5 is a structural schematic diagram of the adjusting shaft of the present invention;

[0019] Figure 6 is a structural schematic diagram of the rotating mechanism of the present invention;

[0020] Figure 7 is a structural schematic diagram of the rotating disk of the present invention;

[0021] Figure 8 is a structural schematic diagram of the gripping mechanism of the present invention.

[0022] Description of the reference numerals:

[0023] 1. Control mechanism; 101. Box body; 102. Clamping shaft; 103. Rotating block; 104. Mounting block; 105. Sliding shaft; 106. Lifting plate; 107. Lifting block; 108. Adjusting block; 109. Adjusting shaft; 110. Adjusting rotating block; 111. Positioning block; 112. Threaded column; 113. Limit ring; 114. Sliding block; 115. Adjusting groove; 2. Gripping mechanism; 201. Gripping plate; 202. Gripping column; 3. Rotating mechanism; 301. Rotating outer cylinder; 302. Compression spring; 303. Spring mounting ring; 304. Rotating disk; 305. Rotating handle; 306. Rotating column; 307. Telescopic connecting column. Detailed implementation manner

[0024] The present invention will be described in detail below. The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the protection scope of the present invention.

[0025] The present invention provides a rotary gripper through improvement. The technical solution of the present invention is as follows:

[0026] As Figures 1-8As shown in the figure, a rotary gripper includes a control mechanism 1. A gripping mechanism 2 is installed at the bottom of the control mechanism 1. The control mechanism 1 includes a box body 101 and a lifting block 107. The gripping mechanism 2 includes a gripping plate 201 and gripping columns 202. Adjustment grooves 115 are formed on both inner walls of the box body 101. Two sliding blocks 114 are slidably connected inside the two adjustment grooves 115. Two clamping shafts 102 are slidably connected between the two adjustment grooves 115, and both ends of the clamping shafts 102 are fixedly connected to the sliding blocks 114. Two gripping columns 202 are rotatably connected to the side parts of the two clamping shafts 102. The tops of the two gripping columns 202 are fixedly connected to a rotating block 103. An adjacent side at the top of the two rotating blocks 103 is fixedly connected to a mounting block 104. A sliding shaft 105 is fixedly connected inside the mounting block 104. Lifting plates 106 are fixedly connected to both ends of the lifting block 107. A chute is formed on an adjacent side of the two lifting plates 106, and the sliding shaft 105 is clamped inside the chute. A threaded column 112 is threadedly connected inside the lifting block 107. A limiting ring 113 is fixedly connected to the bottom of the threaded column 112. A positioning block 111 is rotatably connected to the side part of the limiting ring 113. An adjustment shaft 109 is rotatably connected inside the positioning block 111. One end of the adjustment shaft 109 penetrates through the box body 101 and its end is fixedly connected to an adjustment rotating block 110. Two opposite threads are provided on the side surface of the adjustment shaft 109. Two adjustment blocks 108 are threadedly connected to the side part of the adjustment shaft 109. The adjustment blocks 108 are fixedly connected to the middle side surface of the clamping shaft 102, and the adjustment blocks 108 are clamped between the two gripping columns 202. When in use: The threaded column 112 rotates, driving the lifting block 107 to rotate, causing the lifting plates 106 to move upward. Since the clamping shaft 102 is fixed by the adjustment block 108, when the lifting plates 106 move upward, the rotating block 103 rotates around the clamping shaft 102, and the sliding shaft 105 moves along the chute inside the lifting plate 106. At the same time, the gripping columns 202 rotate inward simultaneously for gripping. At the same time, according to the size of the object to be gripped, the adjustment rotating block 110 is rotated. The positioning block 111 is limited by the threaded column 112 and the limiting ring 113, causing the two adjustment blocks 108 to move in opposite directions. The two sliding blocks 114 slide along the adjustment grooves 115, and the sliding shaft 105 at the top moves along the chute inside the lifting plate 106 to adjust the distance between the two gripping columns 202 on both sides before gripping the object.

[0027] Further, a rotating mechanism 3 is installed on the top of the control mechanism 1. The rotating mechanism 3 includes a rotating outer cylinder 301. The top of the box body 101 is fixedly connected to the rotating outer cylinder 301. A rotating disk 304 is rotatably connected inside the rotating outer cylinder 301. A rotating column 306 is fixedly connected to the bottom of the rotating disk 304. The top of the threaded column 112 is fixedly connected to a telescopic connecting column 307. The rotating column 306 is movably connected inside the telescopic connecting column 307. The side surface of the rotating disk 304 is provided with clamping teeth. An annular groove is opened on the inner wall of the rotating outer cylinder 301. A clamping groove having the same size as the clamping teeth is opened at the top of the annular groove. A spring mounting ring 303 is rotatably connected to the bottom of the rotating disk 304. A compression spring 302 is fixedly connected to the bottom of the spring mounting ring 303. The compression spring 302 is fixedly connected to the box body 101. The clamping teeth on the side of the rotating disk 304 are small triangular shapes. A rotating handle 305 is fixedly connected to the top of the rotating disk 304. When in use: In the initial state, the compression spring 302 pushes the spring mounting ring 303 upward. At the same time, the spring mounting ring 303 moves upward, causing the clamping teeth to engage with the clamping groove. When the threaded column 112 needs to be rotated, the rotating handle 305 is used to push the rotating disk 304 downward, causing the clamping teeth to disengage from the clamping groove and allowing the clamping teeth to be stuck in the annular groove. The rotating handle 305 is rotated to drive the rotating disk 304 to rotate, driving the rotating column 306 and the telescopic connecting column 307 to rotate, thereby driving the threaded column 112 to rotate. After clamping, the rotating handle 305 is released, and the compression spring 302 pushes the rotating disk 304 upward, causing the rotating disk 304 to be fixed through the clamping teeth and the clamping groove. Through the above settings, it is convenient to perform grasping.

[0028] Further, the bottom of the grasping column 202 is T-shaped. An installation groove having the same size as the grasping column 202 is opened on one side of the grasping plate 201. A clamping hole having the same size as the bottom of the grasping column 202 is provided inside the installation groove. Anti-slip strips are provided on both adjacent sides of the two grasping plates 201. The anti-slip strips are small cylindrical shapes. When in use: The grasping plate 201 is inserted into the side installation groove of the grasping column 202. At the same time, the grasping plate 201 is replaced according to different objects. Then, the grasping plate 201 is pulled downward to engage the grasping column 202 with the clamping hole, and anti-slip is achieved through the anti-slip strips.

[0029] Working principle: When in use, the threaded column 112 rotates, driving the lifting block 107 to rotate, causing the lifting plate 106 to move upward. Since the clamping shaft 102 is fixed by the adjusting block 108, when the lifting plate 106 moves upward, the rotating block 103 rotates around the clamping shaft 102, and the sliding shaft 105 moves along the internal chute of the lifting plate 106. At the same time, the grasping columns 202 rotate inward to perform grasping. At the same time, according to the size of the object to be grasped, the adjusting block 110 is rotated. The positioning block 111 is limited by the threaded column 112 and the limiting ring 113, causing the two adjusting blocks 108 to move in opposite directions. The sliding blocks 114 on both sides slide along the adjusting groove 115, and the sliding shaft 105 at the top moves along the internal chute of the lifting plate 106 to adjust the distance between the grasping columns 202 on both sides. When clamping an object, in the initial state, the compression spring 302 pushes the spring mounting ring 303 upward, and at the same time the spring mounting ring 303 moves upward, causing the engaging teeth to engage with the engaging groove. When the threaded column 112 needs to rotate, the rotating handle 305 is rotated to push the rotating disk 304 downward, causing the engaging teeth to disengage from the engaging groove and the engaging teeth to be stuck in the annular groove. By rotating the rotating handle 305, the rotating disk 304 is driven to rotate, driving the rotating column 306 and the telescopic connecting column 307 to rotate, so as to drive the threaded column 112 to rotate. After clamping, the rotating handle 305 is released, and the compression spring 302 pushes the rotating disk 304 upward, causing the rotating disk 304 to be fixed through the engaging teeth and the engaging groove. Through the above settings, it is convenient to perform grasping. The grasping plate 201 is inserted into the installation groove on the side of the grasping column 202, and the grasping plate 201 is replaced according to different objects. Then, the grasping plate 201 is pulled downward to make the grasping column 202 engage with the card hole, and anti-slip is achieved through the anti-slip strip.

[0030] The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rotary gripper, comprising a control mechanism (1), characterized in that: A gripping mechanism (2) is installed at the bottom of the control mechanism (1). The control mechanism (1) includes a box body (101) and a lifting block (107). The gripping mechanism (2) includes a gripping plate (201) and gripping columns (202). Adjustment grooves (115) are formed in the inner walls on both sides of the box body (101). Two sliding blocks (114) are slidably connected to the inside of each of the two adjustment grooves (115). Two clamping shafts (102) are slidably connected between the two adjustment grooves (115), and both ends of the clamping shafts (102) are fixedly connected to the sliding blocks (114). Two gripping columns (202) are rotatably connected to the side portions of both clamping shafts (102). The tops of the two gripping columns (202) are fixedly connected to a rotating block (103). An installation block (104) is fixedly connected to the adjacent side of the tops of the two rotating blocks (103). A sliding shaft (105) is fixedly connected to the inside of each installation block (104). Lifting plates (106) are fixedly connected to both ends of the lifting block (107). A sliding groove is formed in the adjacent side of the two lifting plates (106), and the sliding shaft (105) is clamped inside the sliding groove. A threaded column (112) is threadedly connected to the inside of the lifting block (107); A limiting ring (113) is fixedly connected to the bottom of the threaded column (112). A positioning block (111) is rotatably connected to the side of the limiting ring (113). An adjustment shaft (109) is rotatably connected to the inside of the positioning block (111). One end of the adjustment shaft (109) penetrates through the box body (101) and is fixedly connected to an adjustment rotating block (110) at the end. Two opposite threads are provided on the side surface of the adjustment shaft (109). Two adjustment blocks (108) are threadedly connected to the side of the adjustment shaft (109). The adjustment blocks (108) are fixedly connected to the middle side surface of the clamping shaft (102), and the adjustment blocks (108) are clamped between the two gripping columns (202).

2. The rotary gripper according to claim 1, wherein: A rotating mechanism (3) is installed at the top of the control mechanism (1). The rotating mechanism (3) includes a rotating outer cylinder (301). The rotating outer cylinder (301) is fixedly connected to the top of the box body (101). A rotating disk (304) is rotatably connected to the inside of the rotating outer cylinder (301). A rotating column (306) is fixedly connected to the bottom of the rotating disk (304). A telescopic connecting column (307) is fixedly connected to the top of the threaded column (112). The rotating column (306) is movably connected to the inside of the telescopic connecting column (307).

3. A rotary gripper according to claim 2, characterized in that: Clamping teeth are provided on the side surface of the rotating disk (304). An annular groove is formed in the inner wall of the rotating outer cylinder (301), and a clamping groove having the same size as the clamping teeth is formed at the top of the annular groove.

4. The rotary gripper according to claim 3, wherein: A spring installation ring (303) is rotatably connected to the bottom of the rotating disk (304). A compression spring (302) is fixedly connected to the bottom of the spring installation ring (303). The compression spring (302) is fixedly connected to the box body (101).

5. The rotary gripper according to claim 3, wherein: The clamping teeth on the side of the rotating disk (304) are small triangular shapes, and a rotating handle (305) is fixedly connected to the top of the rotating disk (304).

6. A rotary gripper according to claim 1, characterized in that: The bottom of the grasping column (202) is T-shaped. An installation groove having the same size as the grasping column (202) is formed on one side of the grasping plate (201), and a clamping hole having the same size as the bottom of the grasping column (202) is provided inside the installation groove.

7. A rotary gripper according to claim 1, characterized in that: Anti-slip strips are provided on adjacent sides of the two grasping plates (201), and the anti-slip strips are small cylindrical shapes.

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