An automatic pin pressing device

Abstract

The application discloses an automatic pin pressing device, and technical scheme points are as follows: a pressing mechanism is used for positioning pin pressing of the top and bottom of a workpiece; an upper feeding mechanism is used for conveying the positioning pin into the top pin hole of the workpiece; and a lower feeding mechanism is used for conveying the positioning pin into the bottom pin hole of the workpiece; the positioning pin is automatically conveyed into the pin hole of the workpiece through the upper feeding mechanism and the lower feeding mechanism, so that the labor consumption is reduced, and the positioning precision is improved.

Description

Technical Field

[0001] This invention relates to the technical field of positioning pin installation, and more specifically, to an automatic pin pressing device. Background Technology

[0002] In automated production, especially in the production and assembly of automotive parts, positioning pins are needed for the assembly of parts. Therefore, the pressing of positioning pins has become a relatively important process in the assembly of parts. The positioning pins are pressed into the pin holes of the workpieces to achieve the pressing of the positioning pins. Then, the part of the positioning pin that is exposed in the pin hole is inserted into another workpiece to achieve the positioning between the workpieces.

[0003] In the existing pin pressing process, the positioning pins are pressed into the pin holes of the workpiece by manually operating the press. During the pressing process, the positioning pins need to be inserted into the pin holes manually before the pressing operation is performed. The manual loading and placement of the positioning pins not only consumes a lot of manpower, but also reduces the pin pressing accuracy due to the problem of inaccurate manual positioning. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide an automatic pin pressing device, which automatically transmits the positioning pin to the pin hole of the workpiece through the upper feeding mechanism and the lower feeding mechanism, thereby reducing manpower consumption and improving positioning accuracy.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic pin pressing device, comprising a pressing mechanism, wherein the pressing mechanism is used to press positioning pins on the top and bottom of a workpiece; An upper feeding mechanism is used to feed the positioning pin into the top pin hole of the workpiece. And a lower feeding mechanism, which is used to feed the positioning pin into the bottom pin hole of the workpiece.

[0006] The present invention is further configured such that: the pressing mechanism includes a base plate, and the base plate is horizontally arranged; The positioning seat is fixedly connected to the top of the base plate. The workpiece is positioned on the top of the positioning seat. The bottom of the positioning seat is provided with a pin storage hole that extends upward through the positioning seat and is aligned with the pin hole at the bottom of the workpiece. The base plate is provided with a clearance hole that extends vertically through the bottom. The pin storage hole is connected to the clearance hole. Upper pressure plate, which is disposed above the positioning seat; A lower pressure plate, wherein the lower pressure plate is disposed below the base plate; The press-fitting assembly has two parts, located at the bottom of the upper press plate and the top of the lower press plate respectively, and is used to press-fit the locating pins at the top and bottom of the workpiece respectively; A lifting plate, which is located above the upper pressure plate; A sliding rod, wherein multiple sliding rods are provided and vertically penetrate the base plate, the sliding rod slides vertically on the base plate, and the top and bottom of the sliding rod are fixedly connected to the lifting plate and the lower pressure plate, respectively; The lower cylinder is fixedly connected to the bottom of the base plate to drive the lower pressure plate to move up and down; And an upper cylinder, which is fixedly connected to the lifting plate to drive the upper pressure plate to slide up and down.

[0007] The present invention is further configured such that: the pressing assembly includes a fixed pressing base, the fixed pressing base being located on the side of the pressing assembly away from the workpiece; A floating pressure seat is provided on the side of the fixed pressure seat near the workpiece, and the side of the floating pressure seat that contacts the positioning pin is set as a plane. The floating seat is fixedly connected to the side of the fixed pressure seat near the floating pressure seat; And a floating head, which is fixedly connected to the floating pressure seat on the side near the fixed pressure seat; The floating seat has a groove on the side near the floating head, and the end of the floating head extends into the groove. The end of the floating head is set as an arc surface and fits against the side of the groove away from the fixed pressure seat so that the angle between the floating pressure seat and the plane of the locating pin can be adjusted by the rotation of the floating head relative to the floating seat.

[0008] The present invention is further configured such that: a floating connecting ring and a fixed connecting ring are fixedly connected to the outer sides of the floating pressure seat and the fixed pressure seat respectively on the side close to each other; the floating connecting ring and the fixed connecting ring are connected together by a plurality of connecting rods arranged around the floating seat; one end of the connecting rod is fixedly connected to the floating connecting ring, and the other end is fixedly connected to a pressure head; the pressure head is located on the side of the fixed connecting ring away from the floating connecting ring; and an elastic element sleeved on the outside of the connecting rod is provided between the pressure head and the fixed connecting ring.

[0009] The present invention is further configured to include a supply and marketing mechanism, wherein there are two supply and marketing mechanisms, which are respectively used to provide positioning pins to the upper feeding mechanism and the lower feeding mechanism, and the two supply and marketing mechanisms are respectively configured as an upper supply and marketing mechanism and a lower supply and marketing mechanism.

[0010] The present invention is further configured such that: there are two upper feeding mechanisms, and the two upper feeding mechanisms rotate around a vertical axis; the upper supply mechanism and the workpiece are respectively located on both sides of the rotation axis of the two upper feeding mechanisms, so that the two upper feeding mechanisms can rotate to the supply mechanism and the workpiece respectively. The upper feeding mechanism includes a feeding tray with a vertical axis and a storage hole that extends vertically through the feeding tray. The feeding mechanism feeds a positioning pin into the storage hole, and the positioning pin can slide vertically within the storage hole. And a locking cylinder, which is used to lock the positioning pin in the storage hole in the storage hole.

[0011] The present invention is further configured to include a contouring component, which is disposed below the feeding mechanism. The contouring component and the workpiece are symmetrically arranged with respect to the rotation axes of the two upper feeding mechanisms, and the shape and size of the contouring component are the same as those of the workpiece. The upper feeding mechanism also includes a positioning element, which can be inserted into the workpiece or the copying part from top to bottom and cooperate with the workpiece and the copying part.

[0012] The present invention is further configured such that: the lower feeding mechanism includes clamping claws, and two clamping claws are provided; the two clamping claws clamp and release one end of the bottom of the positioning pin by moving towards and away from each other in the horizontal direction. And a moving mechanism, which drives the two clamping claws to move so as to insert the positioning shaft from bottom to top into the storage pin hole through the two clamping claws.

[0013] The present invention is further configured such that: the lower feeding mechanism also includes a gripper cylinder, and two gripping claws are fixedly connected to the two grippers of the gripper cylinder.

[0014] The present invention is further configured such that: the lower feeding mechanism also includes a fixed seat, and the cylinder body of the gripper cylinder is fixedly connected to the fixed seat; The fixed base is provided with a positioning plane, which is located at the bottom of the clamping claws to prevent the positioning pin from falling downward from the two clamping claws.

[0015] In summary, the present invention has the following advantages over the prior art: the present invention automatically transmits the positioning pin to the pin hole of the workpiece through the upper feeding mechanism and the lower feeding mechanism, which reduces manpower consumption and improves positioning accuracy. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the embodiment; Figure 2 for Figure 1 Enlarged schematic diagram of part A; Figure 3 This is a cross-sectional view of the press-fit assembly in the embodiment; Figure 4 for Figure 3 Enlarged schematic diagram of part B; Figure 5 This is a schematic diagram of the positioning seat for an embodiment; Figure 6 for Figure 5 Enlarged schematic diagram of part C; Figure 7 This is a schematic diagram illustrating the positioning seat in an embodiment; Figure 8 This is a schematic diagram illustrating the lower feeding mechanism in an embodiment; Figure 9 for Figure 8 Enlarged schematic diagram of part D; Figure 10 A schematic diagram of the moving mechanism in an embodiment; Figure 11 for Figure 10 Enlarged schematic diagram of part E; Figure 12 A cross-sectional view of the supply and sales organization in the example; Figure 13 This is a schematic diagram of the upper feeding mechanism in an embodiment; Figure 14 This is a schematic diagram illustrating the rotating plate in an embodiment. Figure 15 This is a cross-sectional view of the upper feeding mechanism in the embodiment; Figure 16 for Figure 15 Enlarged schematic diagram of part F; Figure 17 This is a schematic diagram of the upper supply and marketing organization.

[0017] In the diagram: 1. Pressing mechanism; 11. Base plate; 111. Clearance hole; 12. Positioning seat; 121. Pin storage hole; 122. Tightening cylinder; 13. Lifting plate; 131. Upper cylinder; 15. Pressing assembly; 151. Fixed pressure seat; 152. Floating pressure seat; 153. Fixed connecting ring; 154. Floating connecting ring; 155. Floating head; 156. Connecting rod; 157. Pressing head; 158. Elastic element; 159. Floating seat; 1591. Groove; 16. Upper pressure plate; 161. Positioning rod; 21. Support frame; 224. Fixed plate; 2241. Linear bearing; 225. Sliding seat; 2251. Guide column; 226. Connecting seat; 2261. Connecting groove; 227. Connecting head; 23. Feeding mechanism; 231. Feeding tray; 232. Locking cylinder; 2321. Material storage hole; 233. Connecting block; 2331. Mounting groove; 2332. Pin; 234. Positioning component; 24. Copying component; 25. Rotating plate; 251. Rotating shaft; 252. External gear ring; 253. Rack; 26. Support seat; 3. Lower feeding mechanism; 34. Moving mechanism; 341. Lateral moving seat; 342. Longitudinal moving seat; 343. Lateral moving cylinder; 344. Longitudinal moving cylinder; 345. Lateral guide rail; 346. Lateral slider; 347. Longitudinal guide rail; 348. Longitudinal slider; 349. Vertical cylinder; 35. Clamping claw; 36. Clamping claw cylinder; 37. Fixed seat; 371. Positioning plane; 4. Pin feeding mechanism; 41. Pin outlet plate; 421. Pin outlet hole; 42. Pin outlet head; 43. Pin feeding pipe. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments in this application, other similar embodiments obtained by those skilled in the art without creative effort should all fall within the scope of protection of this application. Furthermore, directional terms mentioned in the following embodiments, such as "up," "down," "left," and "right," are only for reference to the directions in the accompanying drawings; therefore, the directional terms used are for illustrative purposes and not for limiting the invention.

[0019] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0020] Example: An automatic pin-pressing device, see attached document. Figure 1 - Appendix Figure 17 It includes a pressing mechanism 1 for pressing the positioning pins on the top and bottom of the workpiece, an upper feeding mechanism for conveying the positioning pins into the top pin hole of the workpiece, and a lower feeding mechanism 3 for conveying the positioning pins into the bottom pin hole of the workpiece.

[0021] Specifically, the pressing mechanism 1 includes a base plate 11, a positioning seat 12, an upper pressure plate 16, a lower pressure plate, a pressing assembly 15, a lifting plate 13, a sliding rod, a lower cylinder, and an upper cylinder 131. Specifically, the base plate 11 is horizontally arranged, the positioning seat 12 is fixedly connected to the top of the base plate 11, the workpiece is positioned on the top of the positioning seat 12, and the bottom of the positioning seat 12 is provided with a pin storage hole 121 that penetrates the positioning seat 12 upward and is aligned with the pin hole at the bottom of the workpiece. The base plate 11 is provided with a vertical clearance hole 111 that penetrates the bottom, and the pin storage hole 121 communicates with the clearance hole 111. The upper pressure plate 16 is positioned above the positioning seat 12, and the lower pressure plate is positioned below the base plate 11. Two pressing components 15 are provided, located at the bottom of the upper pressure plate 16 and the top of the lower pressure plate, respectively, and are used to press the positioning pins at the top and bottom of the workpiece. The lifting plate 13 is located above the upper pressure plate 16. Multiple sliding rods are provided and vertically penetrate the base plate 11. The sliding rods slide vertically on the base plate 11, and their top and bottom are fixedly connected to the lifting plate 13 and the lower pressure plate, respectively. A lower cylinder is fixedly connected to the bottom of the base plate 11 to drive the lower pressure plate to move up and down. An upper cylinder 131 is fixedly connected to the lifting plate 13 to drive the upper pressure plate 16 to slide up and down.

[0022] Specifically, during the pressing of the locating pin, the locating pin is positioned on the locating seat 12. Through the coordinated action of the upper cylinder 131 and the lower cylinder, the upper pressure plate 16 and the two pressing components 15 on the lower pressure plate press the locating pins at the top and bottom of the workpiece, respectively.

[0023] A linear bearing 2241 is provided on the base plate 11 at the position corresponding to the sliding rod, and the linear bearing 2241 is sleeved on the outside of the corresponding sliding rod.

[0024] Specifically, the top of the upper pressure plate 16 is fixedly connected with multiple vertically penetrating positioning rods 161, which can slide up and down on the sliding plate. Linear bearings 2241 are provided on the upper pressure plate 16 at positions corresponding to the positioning rods 161, and the linear bearings 2241 are sleeved on the outside of the corresponding positioning rods 161.

[0025] Specifically, a clamping cylinder 122 is fixedly connected to the positioning seat 12, corresponding to the pin storage hole 121. The piston rod of the clamping cylinder 122 can extend into the pin storage hole 121 to press the positioning pin against the hole wall of the pin storage hole 121. By setting the clamping cylinder 122, the position of the positioning pin inserted into the pin storage hole 121 can be fixed in advance to prevent the positioning pin from falling downward. When the pressing assembly 15 on the pressure plate contacts the bottom of the positioning pin in the pin storage hole 121, the clamping cylinder 122 releases the locking of the positioning pin, so that the pressing assembly 15 can push the positioning pin upward to press it into the pin hole.

[0026] Specifically, the press-fit assembly 15 includes a fixed press base 151, a floating press base 152, a floating seat 159, and a floating head 155. The fixed press base 151 is located on the side of the press-fit assembly 15 away from the workpiece, and the floating press base 152 is located on the side of the fixed press base 151 closer to the workpiece. The side of the floating press base 152 that contacts the positioning pin is set as a plane. The floating seat 159 is fixedly connected to the side of the fixed press base 151 close to the floating press base 152, and the floating head 155 is fixedly connected to the side of the floating press base 152 close to the fixed press base 151. The floating seat 159 is provided with a groove 1591 on the side close to the floating head 155. The end of the floating head 155 extends into the groove 1591. The end of the floating head 155 is set as an arc surface and fits against the side of the groove 1591 away from the fixed press base 151 so that the angle between the floating press base 152 and the plane on the side that contacts the positioning pin can be adjusted by the rotation of the floating head 155 relative to the floating seat 159.

[0027] Specifically, both the fixed pressure seat 151 and the floating pressure seat 152 are set as cylinders with vertical axes and are coaxially arranged. The plane of the floating pressure seat 152 in contact with the locating pins is perpendicular to the axis of the floating pressure seat 152. Specifically, multiple locating pins need to be pressed into the top and bottom of the workpiece. When positioning the workpiece using the locating seat 12, it is often impossible to ensure the verticality of the workpiece axis, resulting in a deviation between the axis of the floating pressure seat 152 and the workpiece. Consequently, the force exerted by the floating pressure seat 152 on the multiple locating pins is different. However, by using the arc surface on the floating head 155, the difference in reaction force between the floating pressure seat 152 and the multiple locating pins can cause the floating pressure seat 152 to swing with the fixed pressure seat 151, thereby ensuring the coaxiality of the floating pressure seat 152 and the workpiece and making the force exerted by the floating pressure seat 152 on the multiple locating pins more uniform.

[0028] Specifically, a floating connecting ring 154 and a fixed connecting ring 153 are fixedly connected to the outer sides of the floating pressure seat 152 and the fixed pressure seat 151 respectively, which are close to each other. The floating connecting ring 154 and the fixed connecting ring 153 are connected together by a plurality of connecting rods 156 arranged around the floating seat 159. One end of the connecting rod 156 is fixedly connected to the floating connecting ring 154, and the other end is fixedly connected to a pressure head 157. The pressure head 157 is located on the side of the fixed connecting ring 153 away from the floating connecting ring 154. An elastic element 158 ​​is provided between the pressure head 157 and the fixed connecting ring 153, sleeved on the connecting rod 156. Specifically, the elastic element 158 ​​is set as a spring washer.

[0029] By setting the elastic element 158, the floating pressure seat 152 can remain coaxial with the fixed pressure seat 151 when no external force is applied.

[0030] Specifically, this embodiment also includes a supply and marketing mechanism 4. There are two supply and marketing mechanisms 4. The two supply and marketing mechanisms 4 are respectively used to provide positioning pins to the upper feeding mechanism and the lower feeding mechanism 3. The two supply and marketing mechanisms 4 are respectively set as the upper supply and marketing mechanism 4 and the lower supply and marketing mechanism 4.

[0031] Specifically, there are two upper feeding mechanisms, which rotate around a vertical axis. The pin feeding mechanism 4 and the workpiece are located on both sides of the rotation axis of the two upper feeding mechanisms, so that the two upper feeding mechanisms can rotate to the pin feeding mechanism 4 and the workpiece respectively. The upper feeding mechanism includes a feeding disc 231 and a locking cylinder 232. The axis of the feeding disc 231 is vertical, and a storage hole 2321 is provided on the feeding disc 231, which is vertically penetrating the feeding disc 231. The pin feeding mechanism 4 feeds the positioning pin into the storage hole 2321. The positioning pin can slide vertically in the storage hole 2321. The locking cylinder 232 is used to lock the positioning pin in the storage hole 2321.

[0032] When the positioning pin is fed into the pin hole of the workpiece, the upper feeding mechanism first rotates to the bottom of the pin feeding mechanism 4, and the pin feeding mechanism 4 transmits the positioning pin to the storage hole 2321. Through the piston rod of the locking cylinder 232, the positioning pin is pressed against the hole wall of the storage hole 2321 to achieve temporary positioning of the positioning pin. Then, the upper feeding mechanism rotates to the top of the workpiece and aligns the storage hole 2321 with the pin hole of the workpiece. Then, the locking cylinder 232 releases the locking of the positioning pin. Under its own weight, the positioning pin slides down until it is inserted into the pin hole.

[0033] Specifically, a support frame 21 is fixedly connected to the top of the base plate 11, and the upper pin supply mechanism 4 is mounted on the support frame 21. The pin supply mechanism 4 includes a pin outlet plate 41, a pin outlet head 42, and a pin supply tube 43. The pin outlet plate 41 can move up and down to contact and separate from the top of the feeding tray 231. The pin outlet head 42 is provided with a pin outlet hole 421 that vertically penetrates the pin outlet head 42 and the pin outlet plate 41. When the pin outlet plate 41 contacts the feeding tray 231, the pin outlet hole 421 is aligned with the storage hole 2321. The pin supply tube 43 is fixedly connected to the top of the pin outlet head 42 and communicates with the pin outlet hole 421. The pin supply tube 43 delivers the positioning pin into the pin outlet hole 421 by air pressure. Each pin outlet hole 421 corresponds to a storage hole 2321. When the pin outlet plate 41 contacts the top of the feeding tray 231, the pin outlet hole 421 can be aligned with the corresponding storage hole 2321.

[0034] Specifically, in this embodiment, two pin holes are provided on the top of the workpiece, and correspondingly, two material storage holes 2321 are provided on the feeding tray 231 of the upper pin feeding mechanism 4, and two pin discharging holes 421 are provided on the pin discharging plate 41. Two corresponding pin discharging heads 42 and pin feeding tubes 43 are also provided. Specifically, this embodiment also includes a contouring component 24, which is disposed below the feeding mechanism 4. The contouring component 24 and the workpiece are symmetrically arranged with respect to the rotation axes of the two upper feeding mechanisms, and the shape and size of the contouring component 24 are the same as those of the workpiece. The upper feeding mechanism also includes a positioning component 234, which can be inserted into the workpiece or the contouring component 24 from top to bottom and cooperates with the workpiece and the contouring component 24. Specifically, the two upper feeding mechanisms are configured to slide up and down in the vertical direction.

[0035] By setting the contouring component 24, when one of the upper feeding mechanisms transmits the positioning pin to the workpiece, the contouring component 24 positions the other upper feeding mechanism.

[0036] Specifically, the top of the workpiece is provided with a circular inner hole, and the pin hole for installing the positioning pin on the workpiece is located on the top of the workpiece and on the side of the circular inner hole; the positioning element 234 is set as a ring, and the outer diameter of the positioning element 234 is equal to the diameter of the circular inner hole of the workpiece.

[0037] Specifically, this embodiment also includes a rotating plate 25 and a support base 26. The rotating plate 25 is horizontally arranged and rotates around the rotation axis of the two upper feeding mechanisms, which are connected to the rotating plate 25. The support base 26 is arranged above the rotating plate 25 and the rotating plate 25 is rotatably connected to the support base 26. The support base 26 moves up and down to drive the upper feeding mechanism to contact and detach from the workpiece.

[0038] Specifically, a cylinder is provided on the top of the support base 26 to drive the support base 26 to move up and down, thereby driving the rotating plate 25 to move up and down through the support base 26, which in turn drives the two upper feeding mechanisms to move up and down. The cylinder that drives the support base 26 to move up and down is fixedly connected to the support frame 21.

[0039] Specifically, a rotating shaft 251 is fixedly connected to the top of the rotating plate 25, and two upper feeding mechanisms rotate around the axis of the rotating shaft 251. The rotating shaft 251 is rotatably connected to the support base 26. An external gear ring 252 coaxial with the rotating shaft 251 is fixedly connected to the outside of the rotating shaft 251. A rack 253 that slides horizontally and cooperates with the external gear ring 252 is provided on one side of the rotating shaft 251. The rack 253 is slidably connected to the bottom of the support base 26. A cylinder that drives the rack 253 to slide is provided at the bottom of the support base 26. The rack 253 slides along its own length.

[0040] The cylinder connected to the rack 253 can drive the rack 253 to slide along its own length. During the sliding process, the rack 253 can drive the outer gear ring 252 to rotate through cooperation with the outer gear ring 252, and at the same time drive the rotating shaft 251 to rotate, so as to drive the two upper feeding mechanisms to rotate.

[0041] Specifically, the feeding tray 231 is connected to the bottom of the rotating plate 25. The rotating plate 25 has a through hole that runs vertically through the rotating plate 25 at the position corresponding to the feeding tray 231, so that the pin feeding mechanism 4 can pass through the through hole and contact the feeding tray 231 to transmit the positioning pin to the feeding tray 231.

[0042] Two connecting blocks 233 are fixedly connected to the top two sides of the feeding tray 231. A mounting groove 2331 is provided on the side of the connecting block 233 closest to the rotating plate 25. The mounting groove 2331 extends through the connecting block 233 along the length of the rotating plate 25. Both sides of the rotating plate 25 are respectively embedded into the two mounting grooves 2331. A pin 2332 is provided on the opposite side of the two connecting blocks 233, extending through the connecting block 233 and abutting against the rotating plate 25. Through the mounting grooves 2331 and the pin 2332, the position of the feeding tray 231 on the rotating plate 25 can be adjusted along its length.

[0043] Specifically, this embodiment also includes a fixed plate 224, a lifting cylinder, a sliding seat 225, a guide post 2251, and a linear bearing 2241. The fixed plate 224 is fixedly positioned and fixedly connected to the support frame 21. The lifting cylinder is fixedly connected to the fixed plate 224 to drive the pin plate 41 of the upper pin feeding mechanism 4 to slide up and down. The sliding seat 225 is located below the fixed plate 224 and is connected to the piston rod of the lifting cylinder. The pin plate 41 of the upper pin feeding mechanism 4 is connected to the bottom of the sliding seat 225. The guide post 2251 is fixedly connected to the connecting seat 226 and passes through the fixed plate 224 along the sliding direction of the connecting seat 226. The linear bearing 2241 is fixedly connected to the fixed plate 224 and sleeved on the guide post 2251. Through the setting of the guide post 2251 and the linear bearing 2241, the up and down sliding direction of the pin plate 41 can be guided and limited.

[0044] Specifically, a connecting seat 226 is fixedly connected to the bottom of the sliding seat 225. The bottom of the connecting seat 226 is provided with a connecting groove 2261 that runs horizontally through the connecting seat 226. A connecting head 227 is fixedly connected to the pin plate 41 in the connecting groove 2261. The connecting head 227 can be embedded into the connecting groove 2261 in the horizontal direction and cooperate with the connecting groove 2261. The cross-sections of the connecting groove 2261 and the connecting head 227 are convex, and the narrow side is located at the bottom of the connecting head 227.

[0045] The lower feeding mechanism 3 includes a clamping jaw 35 for clamping and releasing one end of the positioning pin, and a moving mechanism 34 for moving the clamping jaw 35 and the positioning pin held by the clamping jaw 35. The lower pin supply mechanism 4 is used to supply the positioning pin to the clamping jaw 35; there are two clamping jaws 35, and the two clamping jaws 35 clamp and release one end of the positioning pin by moving towards and away from each other in the horizontal direction.

[0046] When transferring the positioning pin, the positioning pin is first transferred from top to bottom to between the two clamping jaws 35 through the lower pin supply mechanism 4. Then, the two clamping jaws 35 move towards each other to clamp one end of the positioning pin. Then, the moving mechanism 34 drives the two clamping jaws 35 to move so that the clamping jaws 35 are aligned with the pin storage hole 121. Then, the clamping jaws 35 move upward to pass the positioning pin from the bottom upward through the pin storage hole 121 and insert it into the pin hole at the bottom of the workpiece.

[0047] Specifically, the lower feeding mechanism 3 also includes a gripper cylinder 36, with two gripping claws 35 fixedly connected to the two grippers of the gripper cylinder 36. The gripper cylinder 36 drives the gripping claws 35 to clamp and release the workpiece.

[0048] Specifically, a V-shaped groove is provided on the side of the two clamping claws 35 that are close to each other. The V-shaped groove runs vertically through the clamping claws 35, and the positioning pin is clamped in the two V-shaped grooves.

[0049] Specifically, the lower feeding mechanism 3 also includes a fixed seat 37, and the cylinder body of the gripper cylinder 36 is fixedly connected to the fixed seat 37; the fixed seat 37 is provided with a positioning plane 371, which is located at the bottom of the gripper 35 to accommodate the positioning pin falling downward from the two gripper 35.

[0050] Specifically, the moving mechanism 34 includes a transverse moving seat 341 and a longitudinal moving seat 342; the transverse moving seat 341 can slide in the transverse direction on a horizontal plane, and the longitudinal moving seat 342 is slidably connected to the transverse moving seat 341, and the longitudinal moving seat 342 slides in the longitudinal direction on a horizontal plane relative to the transverse moving seat 341; the fixed seat 37 is slidably connected to the longitudinal moving seat 342, and the fixed seat 37 slides vertically on the longitudinal moving seat 342.

[0051] By sliding the transverse moving seat 341, the longitudinal moving seat 342, and the fixed seat 37, the clamping cylinder can be driven to move in multiple directions, so that the clamping cylinder can clamp the positioning pin and move it accurately from the pin feeding mechanism 4 to the bottom of the positioning seat 12, and the fixed seat 37 moves upward to insert the positioning pin into the pin hole of the workpiece.

[0052] Specifically, the moving mechanism 34 also includes a transverse moving cylinder 343, a longitudinal moving cylinder 344, and a vertical cylinder 349. The piston rod of the transverse moving cylinder 343 is fixed in position, and the cylinder body of the transverse moving cylinder is fixedly connected to the transverse moving seat 341. The piston rod of the longitudinal moving cylinder 344 is fixedly connected to the longitudinal moving seat 342, and the cylinder body is fixedly connected to the transverse moving seat 341. The cylinder body of the vertical cylinder 349 is fixedly connected to the longitudinal moving seat 342, and the piston rod is fixedly connected to the fixed seat 37.

[0053] Specifically, the positioning seat 12 and the lower supply and pin mechanism 4 are set on the top of the base plate 11, and the base plate 11 is provided with a vertical clearance hole 111 that penetrates the base plate 11 at the position corresponding to the positioning seat 12 and the supply and pin mechanism 4; the moving mechanism 34 is set at the bottom of the base plate 11, and the piston rod of the transverse moving cylinder 343 is fixedly connected to the base plate 11.

[0054] Specifically, the moving mechanism 34 also includes a transverse guide rail 345, a transverse slider 346, a longitudinal guide rail 347, and a longitudinal slider 348. The transverse guide rail 345 is fixedly connected to the top of the base plate 11; the transverse slider 346 is fixedly connected to the transverse moving seat 341 and can slide on the transverse guide rail 345 along the sliding direction of the transverse moving seat 341; the longitudinal guide rail 347 is fixedly connected to the longitudinal moving seat 342; and the longitudinal slider 348 is fixedly connected to the transverse moving seat 341. The longitudinal slider 348 cooperates with the longitudinal guide rail 347 so that the longitudinal guide rail 347 and the longitudinal slider 348 can slide relative to each other along the sliding direction of the longitudinal moving seat 342.

[0055] Specifically, the top of the positioning seat 12 is provided with a positioning groove, which cooperates with the bottom of the workpiece, so that the workpiece can be positioned by embedding the bottom of the workpiece into the positioning groove; the pin hole 121 is connected to the positioning groove, so that the positioning groove can be aligned with the pin hole at the bottom of the workpiece.

[0056] Specifically, in this embodiment, the workpiece has two pin holes at its bottom, and correspondingly, the positioning seat 12 has two pin storage holes 121 at its bottom, and two clamping cylinders 122 are provided on the positioning seat 12. To enable the pin insertion operation of the two pin storage holes 121, this embodiment provides two sets of grippers and two moving mechanisms 34 corresponding to the two pin storage holes 121. The two moving mechanisms 34 respectively drive the two sets of grippers to feed the positioning pins into the two pin holes. Correspondingly, the pin supply mechanism 4 has two pin ejector parts, two pin ejector holes 421, and two pin supply tubes 43. The two pin ejector parts are used to feed the positioning pins into the two sets of grippers respectively.

[0057] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An automatic pin pressing device characterized by: Includes a pressing mechanism (1), which is used to press the top and bottom of the workpiece with positioning pins; An upper feeding mechanism is used to feed the positioning pin into the top pin hole of the workpiece. And a lower feeding mechanism (3), which is used to feed the positioning pin into the bottom pin hole of the workpiece; The pressing mechanism (1) includes a base plate (11), which is horizontally arranged; Positioning seat (12), the positioning seat (12) is fixedly connected to the top of the base plate (11), the workpiece is positioned on the top of the positioning seat (12), the bottom of the positioning seat (12) is provided with a pin storage hole (121) that penetrates the positioning seat (12) upward and is aligned with the pin hole at the bottom of the workpiece, the base plate (11) is provided with a vertical clearance hole (111) that penetrates the bottom, and the pin storage hole (121) is connected to the clearance hole (111); Upper pressure plate (16), the upper pressure plate (16) is disposed above the positioning seat (12); The lower pressure plate is disposed below the base plate (11); Press-fitting assembly (15), two press-fitting assemblies (15) are provided, located at the bottom of the upper pressure plate (16) and the top of the lower pressure plate respectively, and are used to press-fit the positioning pins at the top and bottom of the workpiece respectively; A lifting plate (13) is located above the upper pressure plate (16); The sliding rod is provided in multiple ways and vertically penetrates the base plate (11). The sliding rod slides vertically on the base plate (11). The top and bottom of the sliding rod are fixedly connected to the lifting plate (13) and the lower pressure plate, respectively. The lower cylinder is fixedly connected to the bottom of the base plate (11) to drive the lower pressure plate to move up and down; And an upper cylinder (131), which is fixedly connected to the lifting plate (13) for driving the upper pressure plate (16) to slide up and down; The pressing assembly (15) includes a fixed pressing base (151) located on the side of the pressing assembly (15) away from the workpiece; A floating pressure seat (152) is provided on the side of the fixed pressure seat (151) close to the workpiece, and the side of the floating pressure seat (152) that contacts the positioning pin is set as a plane; A floating seat (159) is fixedly connected to the fixed pressure seat (151) on the side near the floating pressure seat (152); And a floating head (155), which is fixedly connected to the floating pressure seat (152) on the side near the fixed pressure seat (151); The floating seat (159) has a groove (1591) on the side near the floating head (155). The end of the floating head (155) extends into the groove (1591). The end of the floating head (155) is set as an arc surface and fits against the side of the groove (1591) away from the fixed pressure seat (151) so that the angle between the floating pressure seat (152) and the plane of the locating pin can be adjusted by the rotation of the floating head (155) relative to the floating seat (159).

2. An automatic pin pressing device according to claim 1, characterized in that: The floating pressure seat (152) and the fixed pressure seat (151) are respectively fixedly connected to the outer side of the side close to each other by a floating connecting ring (154) and a fixed connecting ring (153). The floating connecting ring (154) and the fixed connecting ring (153) are connected together by a plurality of connecting rods (156) arranged around the floating seat (159). One end of the connecting rod (156) is fixedly connected to the floating connecting ring (154), and the other end is fixedly connected to a pressure head (157). The pressure head (157) is located on the side of the fixed connecting ring (153) away from the floating connecting ring (154). An elastic element (158) sleeved on the connecting rod (156) is provided between the pressure head (157) and the fixed connecting ring (153).

3. An automatic pin pressing device according to claim 1, characterized in that: It also includes a supply and marketing organization (4), which has two parts. The two supply and marketing organizations (4) are respectively used to provide positioning pins to the upper feeding mechanism and the lower feeding mechanism (3). The two supply and marketing organizations (4) are respectively set as the upper supply and marketing organization and the lower supply and marketing organization.

4. An automatic pin pressing device according to claim 1, characterized in that: The upper feeding mechanism is provided in two parts, and the two upper feeding mechanisms rotate around the vertical axis; the upper supply mechanism and the workpiece are respectively located on both sides of the rotation axis of the two upper feeding mechanisms, so that the two upper feeding mechanisms can rotate to the supply mechanism (4) and the workpiece respectively. The upper feeding mechanism includes a feeding tray (231), the axis of which is vertical, and a storage hole (2321) is provided on the feeding tray (231) that is vertically penetrating the feeding tray (231). The supply pin mechanism (4) sends the positioning pin into the storage hole (2321), and the positioning pin can slide vertically in the storage hole (2321). And a locking cylinder (232), which is used to lock the positioning pin in the storage hole (2321) in the storage hole (2321).

5. An automatic pin pressing device according to claim 4, characterized in that: It also includes a contouring component (24), which is disposed below the feeding mechanism (4). The contouring component (24) and the workpiece are symmetrically arranged with respect to the rotation axis of the two upper feeding mechanisms. The shape and size of the contouring component (24) are the same as those of the workpiece. The upper feeding mechanism also includes a positioning element (234), which can be inserted into the workpiece or the contour part (24) from top to bottom and cooperate with the workpiece and the contour part (24).

6. An automatic pin pressing device according to claim 3, characterized in that: The lower feeding mechanism (3) includes clamping claws (35), and there are two clamping claws (35). The two clamping claws (35) clamp and release one end of the bottom of the positioning pin by moving towards and away from each other in the horizontal direction. And a moving mechanism (34), which is used to drive the two clamping claws (35) to move so as to insert the positioning shaft from bottom to top into the storage pin hole (121) through the two clamping claws (35).

7. An automatic pin pressing device according to claim 6, characterized in that: The lower feeding mechanism (3) also includes a gripper cylinder (36), and two grippers (35) are fixedly connected to the two grippers of the gripper cylinder (36).

8. An automatic pin pressing device according to claim 7, characterized in that: The lower feeding mechanism (3) also includes a fixed seat (37), and the cylinder body of the gripper cylinder (36) is fixedly connected to the fixed seat (37); The fixed seat (37) is provided with a positioning plane (371) arranged at the bottom of the clamping claw (35) for placing a positioning pin to fall off downward from the two clamping claws (35).

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