CN113199502A

CN113199502A - Rotary clamping jaw device

Info

Publication number: CN113199502A
Application number: CN202110598934.XA
Authority: CN
Inventors: 申宇; 孙金锁; 陈灿华
Original assignee: World Precision Manufacturing Dongguan Co Ltd
Current assignee: Guangdong Ward Precision Technology Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2021-08-03
Anticipated expiration: 2041-05-31
Also published as: CN114434485B; CN114434485A; CN113199502B

Abstract

The invention provides a rotary clamping jaw device which comprises a clamping jaw mechanism, an opening and closing driving mechanism and a rotary driving mechanism, wherein the clamping jaw mechanism is arranged on a fixed frame; the rotary driving mechanism comprises a second cylinder vertically installed on the fixing frame, the output end of the second cylinder is connected with a sliding assembly, the sliding assembly comprises a protruding driving piece which is arranged, a driving chute for the driving piece to extend into is formed in the clamping jaw mechanism, and the second cylinder acts to enable the driving piece to slide along the driving chute to enable the clamping jaw mechanism to rotate around the connecting assembly. The rotary clamping jaw device is simple in structure, greatly saves the installation space, and can realize accurate clamping.

Description

Rotary clamping jaw device

Technical Field

The invention relates to the technical field of automation equipment, in particular to a rotary clamping jaw device.

Background

In the prior art, the rotating clamping jaw is generally a clamping jaw cylinder matched with a rotating cylinder to realize clamping and rotating, or is matched with a clamping jaw structure through a motor structure to realize clamping and rotating. The existing rotary clamping jaw is complex in structure and large in occupied space, and particularly, a large space needs to be reserved on a machine table for the rotary clamping jaw to rotate and grab. Especially when two workpieces to be grabbed are close to each other, the existing rotary clamping jaw cannot realize accurate grabbing and clamping, and the clamping jaw can interfere with the adjacent workpieces during action.

Therefore, there is a need for a rotary jaw apparatus that has a small installation space and can achieve precise gripping.

Disclosure of Invention

The invention aims to provide a rotary clamping jaw device which is small in installation space and can realize accurate clamping.

In order to achieve the purpose, the invention provides a rotary clamping jaw device which comprises a clamping jaw mechanism, an opening and closing driving mechanism and a rotary driving mechanism, wherein the clamping jaw mechanism is arranged on a fixed frame; the rotary driving mechanism comprises a second cylinder vertically installed on the fixing frame, the output end of the second cylinder is connected with a sliding assembly, the sliding assembly comprises a protruding driving piece which is arranged, a driving chute for the driving piece to extend into is formed in the clamping jaw mechanism, and the second cylinder acts to enable the driving piece to slide along the driving chute to enable the clamping jaw mechanism to rotate around the connecting assembly.

Preferably, the clamping jaw mechanism further comprises a clamping jaw sleeve rod for allowing the clamping jaw slide bar to pass through, the clamping jaw sleeve rod is sleeved on the clamping jaw slide bar, the clamping jaw assembly is connected to the clamping jaw sleeve rod, and the first cylinder drives the clamping jaw slide bar to slide in the clamping jaw sleeve rod so as to realize opening and closing of the clamping jaw assembly.

Preferably, a first mounting piece and a second mounting piece which are matched with the clamping jaw assembly are arranged at the end part of the clamping jaw sleeve rod, and a third mounting piece which is matched with the clamping jaw assembly is arranged at one end of the clamping jaw sliding rod; the clamping jaw assembly comprises a connecting rod structure, a first supporting piece and a second supporting piece, the connecting rod structure is rotatably installed on the first installation piece, one end of the first supporting piece is rotatably connected to the connecting rod structure, the other end of the first supporting piece is rotatably connected to the second installation piece, one end of the second supporting piece is rotatably connected to the first supporting piece, the other end of the second supporting piece is rotatably connected to the third installation piece, and the second supporting piece rotates around the first supporting piece so that the connecting rod structure can be opened and closed to take and place a workpiece.

Preferably, the first mounting part comprises a plurality of first mounting parts arranged around the clamping jaw sleeve rod, and the first mounting parts are used for mounting the connecting rod structure; the second installation part comprises a plurality of second installation parts which are arranged on the clamping jaw loop bar in a surrounding mode, the second installation parts are used for installing the first supporting piece, the third installation parts comprise a plurality of third installation parts which are arranged on the clamping jaw slide bar in a surrounding mode, and the third installation parts are used for installing the second supporting piece.

Preferably, the driving chute is arranged on the clamping jaw loop bar and comprises a first driving part, a second driving part and a third driving part, the first driving part and the third driving part are vertically arranged, the second driving part is obliquely arranged between the first driving part and the third driving part, and the second driving part is communicated with the first driving part and the third driving part.

Preferably, the clamping jaw loop bar is further provided with a limiting groove, the clamping jaw slide bar is provided with a limiting part protruding out of the limiting groove, the clamping jaw slide bar slides along the clamping jaw loop bar so that the limiting part slides in the limiting groove, and the limiting part is matched with the limiting groove so as to limit the opening and closing degree of the clamping jaw assembly.

Preferably, the clamping jaw mechanism further comprises a connecting sleeve for installing the clamping jaw sleeve rod, the clamping jaw sleeve rod is fixed on the fixed seat through the connecting sleeve, and the connecting sleeve is provided with a through groove for exposing the driving chute.

Preferably, the connecting assembly comprises a first fixing piece, a bearing, a limiting screw and a second fixing piece, the first fixing piece is used for connecting a first air cylinder, a fourth mounting part for mounting the bearing is arranged on the clamping jaw slide bar, the limiting screw is used for reinforcing the mounting of the bearing on the fourth mounting part, and the bearing drives the clamping jaw slide bar to be rotatably connected with the first fixing piece and the second fixing piece; the second fixing piece is sleeved outside the bearing and the first fixing piece so as to reinforce the connection between the clamping jaw sliding rod and the first fixing piece.

Preferably, the sliding assembly includes a sliding sleeve and a sliding member, the sliding sleeve is mounted on the fixing base, the sliding sleeve is of a hollow structure, the sliding member is slidably disposed in the sliding sleeve, the driving member is mounted on the sliding member, and the driving member slides along with the sliding of the sliding member.

Preferably, the sliding part is provided with a convex part, the convex part and the sliding part are provided with mounting holes in a penetrating way, and the driving part is mounted in the mounting holes and is in interference fit with the mounting holes; the sliding sleeve is provided with a sliding groove for the convex part to slide.

After the technical scheme is adopted, the rotary clamping jaw device comprises a clamping jaw mechanism, an opening and closing driving mechanism and a rotary driving mechanism, wherein the opening and closing driving mechanism is used for driving the clamping jaw mechanism to open and close so as to take and place objects, and the rotary driving mechanism is used for driving the clamping jaw mechanism to rotate. The opening and closing driving mechanism comprises a first air cylinder which is vertically installed, and the rotating driving mechanism comprises a second air cylinder which is vertically installed. Horizontal space can effectively be saved to the vertical installation of first cylinder and second cylinder for overall structure is compacter. The first cylinder acts so that the connecting component drives the clamping jaw slide bar to slide along the clamping jaw loop bar, the clamping jaw components connected to the clamping jaw slide bar and the clamping jaw loop bar are opened and closed, objects can be taken and placed, and the limiting groove and the limiting part are further arranged on the clamping jaw mechanism, so that the clamping jaw components can more accurately clamp and take workpieces. The clamping jaw mechanism is further provided with a driving chute, the rotary driving mechanism comprises a driving piece matched with the driving chute, and the second air cylinder acts to enable the driving piece to slide along the driving chute so as to realize the rotation of the clamping jaw mechanism. According to the rotary clamping jaw device, the first air cylinder and the second air cylinder can act simultaneously or independently, so that the clamping jaw mechanism can take and place materials independently or rotate independently, and the clamping jaw mechanism can take and place materials and rotate simultaneously. The rotary clamping jaw device is simple in structure, greatly saves the installation space, and can realize accurate clamping.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural view of a rotary jaw apparatus according to an embodiment of the present invention.

Fig. 2 is a schematic view of the internal structure of fig. 1 with the housing removed.

Fig. 3 is a cross-sectional view of fig. 2.

Fig. 4 is a schematic view of the structure of fig. 2 from another angle.

Fig. 5 is an exploded view of fig. 2.

Fig. 6 is a schematic structural view of the fixing base in fig. 5.

Figure 7 is a schematic view of the jaw assembly of figure 5.

Figure 8 is a schematic view of the structure of a single jaw of figure 7.

Figure 9 is a schematic view of the structure of the jaw slide of figure 5.

Figure 10 is a schematic diagram of the mechanism of the jaw lever of figure 5.

Fig. 11 is a schematic structural view of the connecting sleeve in fig. 5.

Fig. 12 is a schematic view of the structure of the connector of fig. 5.

Fig. 13 is a schematic view of the structure of the slider in fig. 5.

Figure 14 is a schematic view of the construction of the sliding sleeve of figure 5.

Description of reference numerals:

100. a rotating jaw device; 101. a fixed seat; 1011. a first housing hole; 1012. a first mounting groove; 1013. a second housing hole; 1014. a second mounting groove; 102. a housing;

10. a jaw mechanism; 11. a jaw assembly; 111. a fastener; 112. a connecting rod structure; 1121. a first link; 1122. a second link; 1123. a first rotating member; 1124. a second rotating member; 1125. a containing groove; 113. a first support member; 1131. a third rotating member; 1132. a fourth rotating member; 114. a second support member; 1141. a fifth rotating member; 1142. a sixth rotating member; 12. a jaw slide bar; 121. a third mount; 1211. a third mounting portion; 122. a fourth mounting portion; 123. a first connection hole; 13. a jaw sleeve rod; 131. driving the chute; 1311. a first driving section; 1312. a second driving section; 1313. a third driving section; 132. a limiting groove; 133. a first mounting member; 1331. a first mounting portion; 134. a second mount; 1341. a second mounting portion; 14. connecting sleeves; 141. a through groove; 15. a limiting member;

20. an opening and closing driving mechanism; 21. a first cylinder; 22. a connecting assembly; 221. a first fixing member; 222. a bearing; 223. a second fixing member; 224. a limit screw; 225. a locking member;

30. a rotation driving mechanism; 31. a second cylinder; 32. a connecting member; 321. a second connection hole; 322. a first connection portion; 33. a slider; 331. a second connecting portion; 332. a convex portion; 3321. mounting holes; 34. a sliding sleeve; 341. a fixed part; 342. a screw; 343. a hollow interior cavity; 344. a sliding groove; 35. a drive member.

Detailed Description

In order to explain technical contents and structural features of the present invention in detail, the following description is made with reference to the embodiments and the accompanying drawings.

Referring to fig. 1 to 5, the present invention provides a rotary clamping jaw apparatus 100, which includes a clamping jaw mechanism 10 mounted on a fixing base 101, an opening/closing driving mechanism 20 and a rotary driving mechanism 30. Wherein, open and shut actuating mechanism 20 including be vertical installation first cylinder 21 and set up in the coupling assembling 22 of first cylinder 21 output. The first cylinder 21 is vertically arranged, the spatial layout is more reasonable, and the transverse space can be effectively reduced. The jaw mechanism 10 includes a jaw slide 12 and a jaw assembly 11 slidably mounted to the jaw slide 12. The end of jaw slide 12 remote from jaw assembly 11 is pivotally connected to coupling assembly 22. The rotary driving mechanism 30 includes a second cylinder 31 vertically installed on the fixing seat 101, an output end of the second cylinder 31 is connected with a sliding assembly, the sliding assembly includes a protruding driving part 35, a driving chute 131 for the driving part 35 to extend into is arranged on the clamping jaw mechanism 10, and the second cylinder 31 acts to enable the driving part 35 to slide along the driving chute 131 to enable the clamping jaw mechanism 10 to rotate around the connecting assembly 22. The first cylinder 21 acts to make the clamping jaw mechanism 10 move telescopically so as to open and close the clamping jaw assembly 11, so that material taking and placing can be performed. The second cylinder 31 is actuated to rotate the driving member 35 to drive the jaw assembly 11 around the connecting assembly 22, so as to adjust the angle of material taking and placing. The first cylinder 21 and the second cylinder 31 can be operated independently or simultaneously, and the use is convenient. First cylinder 21 and the vertical installation of second cylinder 31, spatial layout is more reasonable, can effectively reduce horizontal space.

Referring to fig. 3 and 5, in some alternative embodiments, the jaw mechanism 10 further includes a jaw sleeve 13 for allowing the jaw slide bar 12 to pass through, the jaw sleeve 13 is a hollow structure, and the jaw sleeve 13 is sleeved on the jaw slide bar 12, that is, the jaw slide bar 12 is installed in the jaw sleeve 13. Wherein, the clamping jaw assembly 11 is connected to the clamping jaw loop bar 13 and the clamping jaw slide bar 12 respectively, and the first cylinder 21 acts to drive the clamping jaw slide bar 12 to slide in the clamping jaw loop bar 13, thereby driving the connecting rod structure 112 and the first supporting piece 113 and the second supporting piece 114 on the clamping jaw assembly 11 to move, and further realizing the opening and closing of the clamping jaw assembly 11 to take and place materials.

Referring to fig. 7-10, in some alternative embodiments, the end of the jaw sleeve bar 13 is provided with a first mounting member 133 and a second mounting member 134 for engaging the jaw assembly 11, the first mounting member 133 includes a plurality of first mounting portions 1331 disposed around the jaw sleeve bar 13, and the first mounting portions 1331 are used for mounting the link structure 112. The second mounting member 134 includes a plurality of second mounting portions 1341 disposed around the jaw sleeve bar 13, and the second mounting portions 1341 are used for mounting the first supporting member 113. One end of jaw slide 12 is provided with a third mount 121 which cooperates with jaw assembly 11. The third mounting member 121 includes a plurality of third mounting portions 1211 disposed around the jaw slide bar 12, and the third mounting portions 1211 are used for mounting the second supporting member 114. First, second and third mounting

elements

133, 134 and 121 are similarly configured. The first mounting portion 1331, the second mounting portion 1341 and the third mounting portion 1211 have the same structure and each include two protruding sidewalls and a groove body located between the two sidewalls, and the related portions of the clamping jaw assembly 11 are mounted in the groove body. The through holes are formed in the two side walls in a penetrating mode and used for installing the rotating piece, so that the clamping jaw assemblies 11 can rotate in the groove body around the corresponding rotating piece, and therefore opening and closing of the clamping jaw assemblies 11 can be achieved to take and place materials.

Referring to fig. 7-10, in some alternative embodiments, the jaw assembly 11 is coupled to the jaw stem 13 and the holder 101 via fasteners 111. The jaw assembly 11 may include several sets of identically configured jaws, each jaw including a linkage 112, a first support 113, and a second support 114. Specifically, the link structure 112 is rotatably mounted to the first mounting member 133. The link structure 112 includes a first link 1121 and a second link 1122, the first link 1121 is rotatably mounted in the first mounting portion 1331 through a first rotating member 1123, and the first rotating member 1123 sequentially passes through the through hole on one side wall, the through hole on the first link 1121 and the through hole on the other side wall, so that the first link 1121 is stably disposed in the first mounting portion 1331 and the first link 1121 can rotate around the first rotating member 1123. The first link 1121 is rotatably connected to the second link 1122 via a second rotating member 1124. On the other hand, one end of the first support member 113 is rotatably mounted in the second mounting portion 1341 through the third rotating member 1131, and the other end of the first support member 113 is rotatably connected to the link structure 112 through the fourth rotating member 1132. The second link 1122 is provided with a receiving groove 1125 for receiving and mounting the first supporting member 113, and walls at two sides of the receiving groove 1125 are both provided with through holes for mounting the fourth rotating member 1132. One end of the second supporting member 114 is rotatably mounted in the third mounting portion 1211 through the fifth rotating member 1141; the other end of the second supporting member 114 is rotatably connected to the first supporting member 113 by a sixth rotating member 1142. The first cylinder 21 is actuated to slide the jaw sliding bar 12 in the jaw sleeve 13, so that the second supporting member 114 rotates around the sixth rotating member 1142 relative to the first supporting member 113, and the connecting rod structure 112 rotates relative to the first rotating member 1123 to open and close the connecting rod structure 112, so as to take and place a workpiece. The matching between the first supporting member 113 and the second mounting portion 1341, and the matching between the second supporting member 114 and the third mounting portion 1211 are similar to the matching between the first connecting rod 1121 and the first mounting portion 1331; and thus will not be described in detail herein. It will be appreciated that the number of jaws in the jaw assembly 11 is the same as the number of mounts on the mount to enable the jaw assembly 11 to be securely connected to the jaw slide bar 12 and jaw sleeve bar 13. The clamping jaw assembly 11 is reasonable in structural design, and the clamping jaw assembly 11 can be opened and closed through relative sliding of the clamping jaw sliding rod 12 and the clamping jaw sleeve rod 13, so that a workpiece can be well picked and placed.

Referring to fig. 5 and 10, in some alternative embodiments, the drive chute 131 opens onto the jaw stem 13. Specifically, the driving chute 131 includes a first driving part 1311, a second driving part 1312, and a third driving part 1313, the first driving part 1311 and the third driving part 1313 are vertically disposed and have different heights on the jaw lever 13, the second driving part 1312 is obliquely disposed between the first driving part 1311 and the third driving part 1313, and the second driving part 1312 communicates with a lower end of the first driving part 1311 and an upper end of the third driving part 1313. The first driving part 1311 and the third driving part 1313 are vertically disposed to allow the driving member 35 to stay. The second cylinder 31 is actuated to slide the driving member 35 from the first driving portion 1311 to the third driving portion 1313 along the second driving portion 1312, so that the gripper bar 13 drives the entire gripper mechanism 10 to rotate a certain angle around the bearing 222 of the connecting assembly 22, thereby adjusting the angle of the workpiece gripped by the gripper assembly 11. In some embodiments, at least one straight stopping portion may be further disposed on the second driving portion 1312, so that the workpiece taking and placing angle can be adjusted multiple times, and the workpiece can be more accurately positioned in the next process. Illustratively, the workpiece is a special-shaped gear, and the special-shaped gear needs to be rotated and the angle of the special-shaped gear needs to be adjusted so as to detect or assemble the special-shaped gear. The rotary clamping jaw device 100 is high in rotary positioning precision and accurate in positioning, and can well drive the special-shaped gear to perform rotary positioning.

Referring to fig. 3 and 10, in some alternative embodiments, the jaw sleeve 13 further defines a limiting groove 132, the jaw slide bar 12 defines a limiting member 15 protruding out of the limiting groove 132, the jaw slide bar 12 slides along the jaw sleeve 13 to enable the limiting member 15 to slide in the limiting groove 132, and the limiting member 15 cooperates with the limiting groove 132 to limit the opening and closing degree of the jaw assembly 11. Illustratively, the limiting member 15 may be integrated with the jaw slide 12, or a through hole for installing the limiting member 15 is formed through the jaw slide 12, and the limiting member 15 is detachably installed on the jaw slide 12. Specifically, when the first cylinder 21 drives the jaw sliding rod 12 to slide along the jaw sleeve rod 13, the limiting member 15 on the jaw sliding rod 12 slides up and down in the limiting groove 132 on the jaw sleeve rod 13, so as to effectively control the opening and closing degree of the jaw assembly 11, and thus, interference or touching of adjacent workpieces due to too large opening when picking up the workpieces can be avoided. It is possible to avoid pinching the workpiece due to excessive closing. A lot of clamping jaw structures that have now adopt clamping jaw cylinder to control the clamping jaw and grab the clamp, adopt revolving cylinder or motor control clamping jaw to rotate, whole volume is great, opening and shutting of clamping jaw also can not be fine control, places when nearer at two adjacent work pieces, and unable fine realization snatchs, takes place easily and interferes. The clamping jaw mechanism 10 is reasonable in structural design, and not only can a workpiece be taken and placed well, but also the workpiece can be prevented from being interfered and damaged by clamping.

Referring to fig. 3, 5, 6 and 11, in some alternative embodiments, a first receiving hole 1011 and a first mounting groove 1012 are formed on the fixing base 101, a connecting plate is further disposed on the fixing base 101, and a second receiving hole 1013 and a second mounting groove 1014 are formed on the connecting plate. The first receiving hole 1011 and the second receiving hole 1013 are coaxially disposed, and the first mounting groove 1012 and the second mounting groove 1014 are coaxially disposed. The first accommodating hole 1011 is used for accommodating the clamping jaw mechanism 10, the clamping jaw mechanism 10 further comprises a connecting sleeve 14 used for installing the clamping jaw sleeve rod 13, and the clamping jaw mechanism 10 is located in the first accommodating hole 1011 and enables the clamping jaw sleeve rod 13 to be fixed on the fixed seat 101 by means of the matching of the connecting sleeve 14 and the first accommodating hole 1011. The connecting sleeve 14 is of a hollow structure, the clamping jaw sleeve rod 13 is located in the connecting sleeve 14, the clamping jaw sleeve rod 13 is stably arranged in the connecting sleeve 14 through the locking piece, and the connecting sleeve 14 enables the clamping jaw sliding rod 12 to be stably arranged on the fixed seat 101. The connecting sleeve 14 is provided with a through groove 141 for exposing the driving inclined groove 131, and the driving inclined groove 131 on the clamping jaw sleeve rod 13 positioned in the connecting sleeve 14 can be exposed out of the connecting sleeve 14 to be matched with the driving part 35 through the through groove 141 on the connecting sleeve 14, so that the rotation of the clamping jaw mechanism 10 can be conveniently realized. In this embodiment, the second receiving hole 1013 is used for installing the first cylinder 21, the first mounting groove 1012 and the second mounting groove 1014 are used for installing the rotation driving mechanism 30, the rotation driving mechanism 30 can be conveniently and quickly installed in the first mounting groove 1012 and the second mounting groove 1014, and can also be conveniently and quickly disassembled, and when the clamping jaw mechanism 10 does not need to rotate, the rotation driving mechanism 30 can be disassembled from the fixing base 101. On the other hand, the housing 102 is also mounted on the fixing base 101, so that the dust can be prevented and the use is safer.

Referring to fig. 3 and 5, in some alternative embodiments, the connection assembly 22 includes a first fixing member 221, a bearing 222, a limit screw 224, a second fixing member 223, and a locking member 225. One end of the first fixing member 221 is connected to the first cylinder 21, and the other end of the first fixing member 221 abuts against the bearing 222. A fourth mounting portion 122 is provided on the jaw slide 12 for mounting the bearing 222, and the fourth mounting portion 122 is located at an end of the jaw slide 12 close to the first fixing member 221. A screw hole is further formed in the end surface of the jaw slide bar 12 close to the fourth mounting portion 122, and the connecting assembly 22 further includes a limit screw 224, so that the bearing 222 is stably mounted on the fourth mounting portion 122 by the limit screw 224 being engaged with the first connecting hole 123 of the jaw slide bar 12. The first fixing member 221 is a hollow structure, and the portion of the limit screw 224 exposed out of the jaw sliding bar 12 may be located in the first fixing member 221. The bearing 222 drives the jaw slide bar 12 to rotate and is connected to the first fixing member 221 and the second fixing member 223, and when the second cylinder 31 acts on the jaw sleeve bar 13, the jaw sleeve bar 13 drives the jaw slide bar 12 to rotate around the bearing 222. The second fastener 223 is sleeved outside the bearing 222 and the first fastener 221 to reinforce the connection between the jaw slide bar 12 and the first fastener 221. Specifically, the second fixing member 223 is also a hollow structure, the openings at the two ends of the second fixing member 223 are different in size, the large end opening is used for installing the bearing 222 and the first fixing member 221, and the small end opening is used for allowing the jaw slide bar 12 to extend into and can play a role in limiting after the jaw slide bar 12 is matched with the bearing 222, so that the jaw slide bar 12, the bearing 222 and the first fixing member 221 are stably arranged in the second fixing member 223. The first fixing element 221 and the second fixing element 223 are further provided with through holes in a penetrating manner, and the through holes on the first fixing element 221 and the second fixing element 223 are coaxially arranged so that the locking element 225 can penetrate through and lock the first fixing element 221 and the second fixing element 223, so that the jaw sliding bar 12 can be stably and rotatably connected to the connecting assembly 22.

Referring to fig. 3, 5 and 12-14, in some alternative embodiments, a sliding assembly is located at the output end of the second cylinder 31, and the sliding assembly includes a connecting member 32, a sliding sleeve 34 and a sliding member 33. The second connection hole 321 at one end of the connecting member 32 is connected to the output end of the second cylinder 31, and the first connection portion 322 is disposed at one end of the connecting member 32 away from the second cylinder 31. One end of the sliding member 33 is provided with a second connecting portion 331 engaged with the first connecting portion 322, and the first connecting portion 322 can be slidably engaged with the second connecting portion 331, so that the structure is simple and the connection is stable. On the other hand, the sliding sleeve 34 is firmly mounted on the fixed base 101 through the fixed portion 341 and the screw 342, the sliding sleeve 34 is provided with a hollow inner cavity 343 in which the sliding member 33 is slidably mounted, and the sliding member 33 is slidably disposed in the hollow inner cavity 343. The sliding member 33 is provided with a protruding protrusion 332, the protrusion 332 and the sliding member 33 are provided with a mounting hole 3321, the driving member 35 is mounted in the mounting hole 3321 and is in interference fit with the mounting hole 3321, the second cylinder 31 operates to drive the sliding member 33 to slide along the sliding sleeve 34, and the driving member 35 slides along with the sliding of the sliding member 33. Specifically, the sliding sleeve 34 is further provided with a sliding groove 344 through which the protrusion 332 and the driving member 35 protrude out of the sliding sleeve 34, and the protrusion 332 slides along the sliding groove 344. The driving member 35 is always located in the driving chute 131 to better fit with the sliding member 33 and prevent the sliding member from sliding out of the sliding sleeve 34.

As shown in fig. 1 to 14, the rotary clamping jaw device 100 of the present invention includes a clamping jaw mechanism 10, an opening and closing driving mechanism 20 for driving the clamping jaw mechanism 10 to open and close for taking and placing objects, and a rotary driving mechanism 30 for driving the clamping jaw mechanism 10 to rotate. The opening and closing driving mechanism 20 includes a first cylinder 21 vertically installed, and the rotation driving mechanism 30 includes a second cylinder 31 vertically installed. The vertical installation of the first cylinder 21 and the second cylinder 31 can effectively save the transverse space, so that the whole structure is more compact. The first cylinder 21 acts to make the connecting component 22 drive the jaw sliding rod 12 to slide along the jaw loop bar 13, so that the jaw assembly 11 connected to the jaw sliding rod 12 and the jaw loop bar 13 is opened and closed to take and place objects, and the jaw mechanism 10 is further provided with a limiting groove 132 and a limiting component 15, so that the jaw assembly 11 can more accurately clamp and take workpieces within a certain range. A driving chute 131 is further provided on the gripper mechanism 10, the rotary driving mechanism 30 includes a driving member 35 engaged with the driving chute 131, and the second cylinder 31 is actuated to slide the driving member 35 along the driving chute 131 to realize the rotation of the gripper mechanism 10. In the rotary clamping jaw device 100, the first air cylinder 21 and the second air cylinder 31 both act independently, so that the clamping jaw mechanism 10 can take and place materials independently or rotate independently, and the clamping jaw mechanism 10 can take and place materials and rotate simultaneously under the action of the first air cylinder 21 and the second air cylinder 31. The rotary clamping jaw device 100 is simple and novel in structure, greatly saves installation space, and can realize accurate clamping.

The above disclosure is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, so that the appended claims are intended to cover all such modifications and changes as fall within the true spirit of the invention.

Claims

1. A rotary clamping jaw device is characterized by comprising a clamping jaw mechanism, an opening and closing driving mechanism and a rotary driving mechanism, wherein the clamping jaw mechanism is installed on a fixed frame, the opening and closing driving mechanism comprises a first air cylinder which is vertically installed and a connecting assembly arranged at the output end of the first air cylinder, the clamping jaw mechanism comprises a clamping jaw sliding rod and a clamping jaw assembly which is installed on the clamping jaw sliding rod in a sliding manner, and one end, far away from the clamping jaw assembly, of the clamping jaw sliding rod is rotatably connected to the connecting assembly; the rotary driving mechanism comprises a vertical cylinder installed on the fixing frame, the output end of the second cylinder is connected with a sliding assembly, the sliding assembly comprises a protruding driving piece which is arranged, the clamping jaw mechanism is provided with a driving chute for the driving piece to stretch into, and the second cylinder acts to enable the driving piece to slide along the driving chute to enable the clamping jaw mechanism to rotate around the connecting assembly.

2. The rotary clamping jaw apparatus as claimed in claim 1, wherein said clamping jaw mechanism further comprises a clamping jaw sleeve rod for allowing said clamping jaw slide rod to pass through, said clamping jaw sleeve rod is sleeved on said clamping jaw slide rod and said clamping jaw assembly is connected to said clamping jaw sleeve rod, and said first cylinder drives said clamping jaw slide rod to slide in said clamping jaw sleeve rod to open and close said clamping jaw assembly.

3. The rotary jaw apparatus of claim 2, wherein said jaw sleeve bar is provided with first and second mountings at ends thereof for engagement with said jaw assembly, and said jaw slide bar is provided with a third mounting at one end thereof for engagement with said jaw assembly; the clamping jaw assembly comprises a connecting rod structure, a first supporting piece and a second supporting piece, wherein the connecting rod structure is rotatably installed on the first mounting piece, one end of the first supporting piece is rotatably connected to the connecting rod structure, the other end of the first supporting piece is rotatably connected to the second mounting piece, one end of the second supporting piece is rotatably connected to the first supporting piece, the other end of the second supporting piece is rotatably connected to the third mounting piece, and the second supporting piece winds around the first supporting piece to rotate so that the connecting rod structure is opened and closed to take and place workpieces.

4. The rotary jaw apparatus of claim 3, wherein said first mount comprises a plurality of first mounts disposed about said jaw sleeve bar, said first mounts for mounting said link structure; the second installed part is including week locating a plurality of second installation departments of clamping jaw loop bar, the second installation department is used for the installation first support piece, the third installed part is including week locating a plurality of third installation departments of clamping jaw slide bar, the third installation department is used for the installation second support piece.

5. The rotary jaw apparatus of claim 2, wherein the drive chute opens onto the jaw stem, the drive chute including a first drive portion, a second drive portion, and a third drive portion, the first and third drive portions being vertically disposed, the second drive portion being obliquely disposed between the first and third drive portions and the second drive portion being in communication with the first and third drive portions.

6. The rotating jaw device of claim 2, wherein said jaw sleeve is further provided with a limiting groove, said jaw slide bar is provided with a limiting member protruding out of said limiting groove, said jaw slide bar slides along said jaw sleeve to slide said limiting member in said limiting groove, and said limiting member cooperates with said limiting groove to limit the opening and closing degree of said jaw assembly.

7. The rotary clamping jaw device as claimed in claim 2, wherein the clamping jaw mechanism further comprises a connecting sleeve for mounting the clamping jaw sleeve rod, the clamping jaw sleeve rod is fixed on the fixed seat by the connecting sleeve, and the connecting sleeve is provided with a through groove for exposing the driving chute.

8. The rotary jaw apparatus as claimed in claim 1, wherein said connecting assembly comprises a first fixing member, a bearing, a limit screw and a second fixing member, said first fixing member is used for connecting said first cylinder, said jaw slide bar is provided with a fourth mounting portion for mounting said bearing, said limit screw is used for reinforcing the mounting of said bearing on said fourth mounting portion, said bearing drives said jaw slide bar to be rotatably connected to said first fixing member and said second fixing member; the second fixing piece is sleeved outside the bearing and the first fixing piece so as to reinforce the connection between the clamping jaw sliding rod and the first fixing piece.

9. The rotary jaw apparatus according to claim 1, wherein said sliding assembly comprises a sliding sleeve and a sliding member, said sliding sleeve is mounted on said fixed base, said sliding sleeve is hollow, said sliding member is slidably disposed in said sliding sleeve, said driving member is mounted on said sliding member, and said driving member slides with the sliding of said sliding member.

10. The rotary jaw apparatus according to claim 9, wherein the sliding member has a protruding protrusion, the protrusion and the sliding member have a mounting hole therethrough, and the driving member is mounted in the mounting hole and is in interference fit with the mounting hole; the sliding sleeve is provided with a sliding groove for the convex part to slide.