Lifting positioning structure with clamping function

Abstract

This invention discloses a lifting and positioning structure with clamping function, including a mounting base and a lifting and positioning platform. The lifting and positioning platform includes a platform body, two sets of pneumatic lifting units, several front pressure units, and several rear pressure units. The platform body forms an air inlet layer, a main body layer, and an air passage layer. The main body layer has two lifting execution chambers in the middle, and several front pressure execution chambers and several rear pressure execution chambers are formed at intervals from one side to the other. Each lifting execution chamber is equipped with one of the pneumatic lifting units. The air passage layer has a rear pressure port corresponding to each rear pressure execution chamber in its upper part. The air inlet layer has a front pressure port corresponding to each front pressure execution chamber in its top. Both the front pressure unit and the rear pressure unit include a pneumatic actuator installed in the front pressure execution chamber or the rear pressure execution chamber, and a clamping block that can slide forward and backward and is installed in the front pressure port or the rear pressure port. This invention can achieve positioning and clamping of items.

Description

Technical Field

[0001] This invention relates to the field of positioning structure technology, and in particular to a lifting positioning structure with clamping function. Background Technology

[0002] Automated production lines have become key to improving production efficiency and product quality. Existing lifting and positioning structures typically include a mounting base, a positioning platform mounted on top of the mounting base that can move up and down relative to the mounting base, and a lifting drive module fixed at the bottom of the mounting base. The drive end of the lifting drive module passes through the mounting base and connects to the bottom of the positioning platform. The extension and retraction of the drive end of the lifting drive module drives the positioning platform to move up and down, thereby positioning the product on the automated production line.

[0003] However, this lifting and positioning structure itself lacks a clamping mechanism, which leads to drawbacks such as inaccurate control of clamping force and large space occupation when dealing with complex and ever-changing workpiece processing environments. Especially in confined spaces or automated production lines, the lifting drive module located at the bottom of the mounting base requires a significant amount of space, greatly limiting further improvements in production efficiency and product quality. Summary of the Invention

[0004] The purpose of this invention is to provide a lifting and positioning structure with clamping function.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A lifting and positioning structure with clamping function includes a mounting base and a lifting and positioning platform; the mounting base is provided with a base plate and two side plates that are vertically erected on both sides of the base plate, a guide column is vertically erected on the middle section of the base plate, and an assembly space is formed between the two side plates.

[0007] The lifting and positioning platform is installed in the assembly space and can be raised and lowered relative to the seat plate. It includes a platform body, two sets of pneumatic lifting units, several front pressure units and several rear pressure units. The platform body has an air intake layer, a main body layer and an air passage layer in sequence from the front end to the rear end. The main body layer has a column cavity corresponding to the guide column and two lifting execution cavities on both sides of the column cavity. The main body layer has several front pressure execution cavities and several rear pressure execution cavities at intervals from one side to the other. Each lifting execution cavity is equipped with a pneumatic lifting unit. The drive end of the pneumatic lifting unit extends from the bottom of the main body layer and is connected to the seat plate. The drive end of the pneumatic lifting unit can extend and retract to drive the platform body to rise and fall relative to the seat plate.

[0008] The air passage layer has a rear pressure port corresponding to each rear pressure execution chamber on its upper part; the air inlet layer has a front pressure port corresponding to each front pressure execution chamber on its top.

[0009] Both the front pressure unit and the rear pressure unit include a pneumatic actuator installed in the front pressure execution chamber or the rear pressure execution chamber, and a clamping block that can slide forward and backward installed in the front pressure port or the rear pressure port. The drive end of the pneumatic actuator extends from the pneumatic area to the rear of the clamping block and is obliquely nested with the rear end of the clamping block. The drive end of the pneumatic actuator and the clamping block are provided with nested oblique guide grooves on both sides, so that the drive end of the pneumatic actuator can extend and retract, driving the clamping block to move forward and backward in the front pressure port or the rear pressure port.

[0010] As a further technical solution of the present invention: the air passage layer has an external air passage on its upper part that connects the upper part of the pneumatic area of ​​each lifting and lowering execution chamber to the outside; the air passage layer has an internal air passage in its lower part that connects the lower parts of the pneumatic areas of two lifting and lowering execution chambers, an upper air passage that connects the upper parts of the pneumatic areas of several front pressure execution chambers and several rear pressure execution chambers to each other and to the outside, and a lower air passage that connects the lower parts of the pneumatic areas of several front pressure execution chambers and several rear pressure execution chambers to each other and to the outside.

[0011] As a further technical solution of the present invention: the air intake layer is provided at its bottom with a plurality of first air holes communicating with the inner air passage, a plurality of second air holes communicating with the upper air passage, and a plurality of third air holes communicating with the lower air passage.

[0012] As a further technical solution of the present invention: a guide rail slider is installed on the side of the side plate facing the assembly space, and the lifting and positioning platform includes two linear guide rails installed opposite to each other on both sides of the platform body, and each guide rail slider can be slidably installed on the linear guide rail on the same side.

[0013] As a further technical solution of the present invention: the lifting and positioning structure with clamping function includes a self-locking module, which is installed on the front end of the base plate to lock the platform body when the platform body is placed in the assembly space.

[0014] As a further technical solution of the present invention: the pneumatic lifting unit includes a bottom cover installed at the bottom of the lifting execution chamber and a lifting piston rod installed in the lifting execution chamber that can be lifted and lowered. The piston head of the lifting piston rod is located below the external air passage, which divides the pneumatic area of ​​the lifting execution chamber into upper and lower parts. The rod body of the lifting piston rod passes through the bottom cover and is connected to the seat plate.

[0015] As a further technical solution of the present invention: the lower part of the front pressure actuation chamber and the rear pressure actuation chamber is a pneumatic zone, the upper part is an actuation zone, and the middle part is a narrow channel connecting the pneumatic zone and the actuation zone; the pneumatic actuation element includes a column base, a compression spring and a piston rod, the column base is formed with a base installed at the bottom of the pneumatic zone and a support column erected on the base, the compression spring is sleeved on the support column; the piston rod is sleeved on the compression spring, the piston head of the piston rod is located below the connection between the upper air passage and the pneumatic zone, dividing the upper and lower parts of the pneumatic zone, the rod head of the piston rod passes through the narrow channel into the actuation zone and is obliquely nested with the rear end of the clamping block.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention proposes a lifting and positioning structure with clamping function. Through the cooperation between the mounting base and the lifting and positioning platform, the pneumatic lifting unit, the front pressure unit and the rear pressure unit are installed in the platform body. The overall structure is compact and effectively reduces the space occupied. The drive end of the pneumatic lifting unit extends and drives the platform body to rise to the designated position. After the item is positioned, the front pressure unit and the rear pressure unit start synchronously to clamp the item and accurately control the clamping force, which effectively improves production efficiency and product quality. Attached Figure Description

[0017] Figure 1 This is a first-person view diagram of a lifting and positioning structure with clamping function.

[0018] Figure 2 This is a second-view schematic diagram of a lifting and positioning structure with clamping function.

[0019] Figure 3 This is a sectional view of the main body of the platform.

[0020] Figure 4 This is a cross-sectional view of the gas path layer of the main platform.

[0021] Figure 5 This is the installation diagram of the main body layer of the platform.

[0022] Figure 6 This is a cross-sectional view of the front pressure unit installed in the front pressure actuation chamber.

[0023] Figure 7 This is an exploded view of the pneumatic actuator and the clamping block. Detailed Implementation

[0024] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of protection of the present invention.

[0025] Please see Figure 1 , Figure 2A lifting and positioning structure with clamping function includes a mounting base 10 and a lifting and positioning platform 20;

[0026] The mounting base 10 is provided with a base plate 11 and two side plates 12 that are vertically erected on both sides of the base plate 11. A guide post 101 is vertically erected on the middle section of the base plate 11, and an assembly space 102 is formed between the two side plates 12.

[0027] See also Figure 3 , Figure 5 The lifting and positioning platform 20 is mounted in the assembly space 102 and can be raised and lowered relative to the seat plate 11. It includes a platform body 21, two sets of pneumatic lifting units 22, several front pressure units 23 and several rear pressure units 24. The platform body 21 has an air inlet layer 211, a main body layer 212 and an air passage layer 213 formed sequentially from the front end to the rear end. The main body layer 212 has a column cavity 201 corresponding to the guide column 101 and two lifting execution chambers 202 located on both sides of the column cavity 201 in its middle. The main body layer 212 has several front pressure execution chambers 203 and several rear pressure execution chambers 204 formed at intervals from one side to the other. Each lifting execution chamber 202 is equipped with a pneumatic lifting unit 22. The drive end of the pneumatic lifting unit 22 passes through the bottom of the main body layer 212 and is connected to the seat plate 11. The drive end of the pneumatic lifting unit 22 can extend and retract to drive the platform body 21 to rise and fall relative to the seat plate 11.

[0028] See also Figure 4 The air passage layer 213 has a rear pressure port 31 and an external air passage 301 that connects the upper part of the pneumatic area of ​​each lifting and lowering actuation chamber 202 to the outside in its upper part; the air passage layer 213 has an inner air passage 302 that connects the lower part of the pneumatic area of ​​the two lifting and lowering actuation chambers 202, an upper air passage 303 that connects the upper part of the pneumatic area of ​​several front pressure actuation chambers 203 and several rear pressure actuation chambers 204 to the outside and to the outside, and a lower air passage 304 that connects the lower part of the pneumatic area of ​​several front pressure actuation chambers 203 and several rear pressure actuation chambers 204 to the outside and to the outside.

[0029] The air intake layer 211 has a front pressure port 32 at its top corresponding to each front pressure execution chamber 203, and a number of first air holes 33 communicating with the inner air passage 302, a number of second air holes 34 communicating with the upper air passage 303, and a number of third air holes 35 communicating with the lower air passage 304 at its bottom.

[0030] See also Figure 6 , Figure 7Both the front pressure unit 23 and the rear pressure unit 24 include a pneumatic actuator 41 installed in the front pressure actuation chamber 203 or the rear pressure actuation chamber 204, and a pressing block 42 that can slide forward and backward installed in the front pressure port 32 or the rear pressure port 31. The driving end of the pneumatic actuator 41 extends from the pneumatic area to the rear of the pressing block 42 and is obliquely nested with the rear end of the pressing block 42. The abutting surfaces of the driving end of the pneumatic actuator 41 and the pressing block 42 are matching inclined surfaces. The driving end of the pneumatic actuator 41 and the pressing block 42 are each provided with a nested oblique guide groove 421 on both sides, which allows the driving end of the pneumatic actuator 41 to extend and retract, driving the pressing block 42 to move forward and backward in the front pressure port 32 or the rear pressure port 31. The pressing block 42 can extend outward with one end to achieve pressing.

[0031] Furthermore, in this embodiment, a guide rail slider 121 is installed on the side of the side plate 12 facing the assembly space 102. The lifting and positioning platform 20 includes two linear guide rails 25 installed opposite to each other on both sides of the platform body 21. Each guide rail slider 121 can be slidably installed on the linear guide rail 25 on the same side. The seat plate 11 has through holes 113 on each side for the bottom of the linear guide rail 25 to pass through. When the drive end of the pneumatic lifting unit 22 extends and retracts to drive the platform body 21 to lift, the guide rail slider 121 cooperates with the linear guide rail 25 to provide stability for the lifting of the platform body 21.

[0032] Furthermore, in this embodiment, the lifting and positioning structure with clamping function also includes a self-locking module 50, which is installed at the front end of the base plate 11 to lock the platform body 21 when it is moved to be housed in the assembly space 102.

[0033] Furthermore, in this embodiment, please refer to Figure 1 , Figure 5The seat plate 11 has a recessed locking slot 114 at its mid-front end, and the platform body 21 has a locking groove 214 recessed at the bottom center of its front end face. The self-locking module 50 includes a fixed seat 51, a locking hook 52, and a torsion spring 53. The fixed seat 51 and the locking slot 114 are installed on the front end of the seat plate 11 in a front-to-back correspondence. The rear end face of the fixed seat 51 has two base plates 511 that pass into the locking slot 114. The two base plates 511 are hinged together by a pin 54. The locking hook 52 has an opening 521 at the point where the pin 54 passes through, and the torsion spring 53 is sleeved on it. On the section of the pin 54 located at the opening 521, the two torsion arms of the torsion spring 53 abut against the fixed seat 51 and the seat plate 11 respectively, providing a driving force for the locking hook 52 to swing toward the platform body 21, so that the driving end of the pneumatic lifting unit 22 retracts, driving the platform body 21 to be housed in the assembly space 102, and the top of the locking hook 52 hooks into the locking groove 214 to achieve self-locking; when the driving end of the pneumatic lifting unit 22 extends and drives the platform body 21 out of the assembly space 102, the top of the locking hook 52 disengages from the locking groove 214, releasing the locking of the platform body 21.

[0034] Furthermore, based on actual needs, the specific structures of the pneumatic actuators 41 of the pneumatic lifting unit 22, the front pressure unit 23, and the rear pressure unit 24 can be flexibly designed. The pneumatic lifting unit 22 adopts a pneumatic actuation structure that divides the pneumatic area of ​​the lifting actuation chamber 202 into upper and lower parts. The pneumatic actuators 41 of the front pressure unit 23 and the rear pressure unit 24 adopt a structure that divides the pneumatic area of ​​the front pressure actuation chamber 203 or the rear pressure actuation chamber 204 into upper and lower parts. This allows the pneumatic lifting unit 22 to input or output compressed air to the lower part of the pneumatic area of ​​the lifting actuation chamber 202 through the first air hole 33 and the inner air passage 302, in conjunction with the upper part of the pneumatic area of ​​the lifting actuation chamber 202 connected to the outside by the outer air passage 301. The upper air passage 303 is connected to the lower air passage 304 to achieve the extension and retraction of the drive end of the pneumatic lifting unit 22. The front pressure unit 23 and the rear pressure unit 24, as needed, block the external connection of the upper air passage 303 while keeping the lower air passage 304 connected to the external. Compressed air is input or output to the upper part of the pneumatic area of ​​the front pressure actuation chamber 203 or the rear pressure actuation chamber 204 through the second air hole 34 and the upper air passage 303. In conjunction with the lower air passage 304 connected to the lower part of the pneumatic area of ​​the front pressure actuation chamber 203 or the rear pressure actuation chamber 204, the extension and retraction of the drive end of the pneumatic actuator 41 is achieved. Similarly, the upper air passage 303 can be kept connected to the external, while the external connection of the lower air passage 304 can be blocked, and compressed air can be input or output through the third air hole 35.

[0035] Furthermore, in this embodiment, the pneumatic lifting unit 22 includes a bottom cover 221 installed at the bottom of the lifting execution chamber 202 and a lifting piston rod 222 installed in the lifting execution chamber 202 that can be lifted and lowered. The piston head of the lifting piston rod 222 is located below the external air passage 301, dividing the pneumatic area of ​​the lifting execution chamber 202 into upper and lower parts. The rod body of the lifting piston rod 222 passes through the bottom cover 221 and is connected to the seat plate 11.

[0036] Furthermore, in this embodiment, the lower part of the front pressure actuation chamber 203 and the rear pressure actuation chamber 204 is a pneumatic zone, the upper part is an actuation zone, and the middle part is a narrow passage connecting the pneumatic zone and the actuation zone; the pneumatic actuation element 41 includes a column base 411, a compression spring 412, and a piston rod 413. The column base 411 forms a base installed at the bottom of the pneumatic zone and a support column erected on the base. The compression spring 412 is sleeved on the support column. The piston rod 413 is sleeved on the compression spring 412. The piston head of the piston rod 413 is located below the connection between the upper air passage 303 and the pneumatic zone, separating the upper and lower parts of the pneumatic zone; the rod head of the piston rod 413 passes through the narrow passage into the actuation zone, separating the pneumatic zone and the actuation zone, and the rod head is obliquely nested with the rear end of the clamping block 42.

[0037] Understandably, the method of using the lifting and positioning structure with clamping function of the present invention is as follows: The lifting and positioning structure with clamping function can be used for positioning packaging cartons. Two sets of lifting and positioning structures with clamping function are arranged opposite each other at the bottom of the roller conveyor line. When the packaging carton is conveyed to the designated position, the drive end of the pneumatic lifting unit 22 extends, driving the platform body 21 to pass through the roller conveyor line. The packaging carton is located between the two platform bodies 21. Subsequently, the front pressure unit 23 and the rear pressure unit 24 are activated to clamp the packaging carton, so that the subsequent pushing structure can push the material into the packaging carton. Thus, the positioning and clamping functions are achieved. The above-mentioned positioning of the packaging carton is only one method of using the lifting and positioning structure with clamping function. According to actual needs, the lifting and positioning structure with clamping function can also be used for positioning and clamping different items.

[0038] In summary, the lifting and positioning structure with clamping function of the present invention, through the cooperation between the mounting base 10 and the lifting and positioning platform 20, installs the pneumatic lifting unit 22, the front pressure unit 23 and the rear pressure unit 24 into the platform body 21. The overall structure is compact and effectively reduces the space occupied. The drive end of the pneumatic lifting unit 22 extends out, driving the platform body 21 to rise to the designated position. After the item is positioned, the front pressure unit 23 and the rear pressure unit 24 are activated synchronously to clamp the item and accurately control the clamping force, effectively improving production efficiency and product quality.

[0039] Any combination of various embodiments of the present invention, provided it does not violate the inventive concept of the present invention, shall be regarded as the content disclosed by the present invention; within the scope of the technical concept of the present invention, any simple modifications to the technical solution and any combination of different embodiments that do not violate the inventive concept of the present invention shall be within the protection scope of the present invention.

Claims

1. A lifting and positioning structure with clamping function, characterized in that: Including mounting seat (10) and lifting positioning platform (20), the mounting seat (10) is equipped with seat plate (11) and two opposite vertical side plates (12) vertically arranged on both sides of the seat plate (11), the middle section of the seat plate (11) is vertically arranged with a guide column (101), and the two side plates (12) form an assembly space (102) between them; The lifting positioning platform (20) can be set to the assembly space (102) relative to the seat plate (11) and can be lifted, which includes platform body (21), two groups of pneumatic lifting units (22), several front pressing units (23) and several rear pressing units (24); The platform body (21) sequentially forms an air inlet layer (211), a main body layer (212) and a gas path layer (213) from the front end to the rear end, the main body layer (212) forms a column cavity (201) corresponding to the guide column (101) and two lifting execution cavities (202) on both sides of the column cavity (201) in the middle part, and the main body layer (212) is formed with several front pressure execution cavities (203) and several rear pressure execution cavities (204) at a distance from one side to the other side; Each lifting execution cavity (202) is provided with one of the pneumatic lifting units (22), the driving end of the pneumatic lifting unit (22) is connected with the seat plate (11) after being pulled out from the bottom of the main body layer (212), the driving end of the pneumatic lifting unit (22) is telescopic, and the platform body (21) is driven to lift relative to the seat plate (11); The gas path layer (213) is provided with a rear pressing port (31) corresponding to each rear pressure execution cavity (204) on the upper part; The air inlet layer (211) is provided with a front pressing port (32) corresponding to each front pressure execution cavity (203) on the top; The front pressing unit (23) and the rear pressing unit (24) both include a pneumatic actuator (41) mounted in the front pressure execution cavity (203) or the rear pressure execution cavity (204) and a pressure block (42) capable of sliding in and out mounted in the front pressing port (32) or the rear pressing port (31), the driving end of the pneumatic actuator (41) is embedded in the rear of the pressure block (42) and the rear end of the pressure block (42) in a diagonal manner, and the driving end of the pneumatic actuator (41) and the pressure block (42) are provided with diagonal guide grooves (421) on both sides for telescopic driving of the driving end of the pneumatic actuator (41), and the pressure block (42) is driven to slide in and out in the front pressing port (32) or the rear pressing port (31).

2. The lifting positioning structure with clamping function according to claim 1, characterized in that: The gas path layer (213) is provided with an outer gas path (301) on the upper part, which is connected with the upper part of the pneumatic area of each lifting execution cavity (202) outside; The gas path layer (213) forms an inner gas path (302) in the lower part, which connects the lower part of the pneumatic area of the two lifting execution cavities (202), an upper gas path (303) which connects the upper part of the pneumatic area of the several front pressure execution cavities (203) and the several rear pressure execution cavities (204) and each other and is connected with the outside, and a lower gas path (304) which connects the lower part of the pneumatic area of the several front pressure execution cavities (203) and the several rear pressure execution cavities (204) and each other and is connected with the outside.

3. The lifting positioning structure with clamping function according to claim 2, characterized in that: The air inlet layer (211) is provided with a plurality of first air holes (33) communicated with the inner air path (302), a plurality of second air holes (34) communicated with the upper air path (303) and a plurality of third air holes (35) communicated with the lower air path (304) at the bottom thereof.

4. The lifting positioning structure with clamping function according to claim 1, characterized in that: The side plate (12) is provided with a guide rail sliding block (121) on the side facing the assembly space (102), and the lifting positioning platform (20) comprises two linear guides (25) oppositely mounted to the two sides of the platform body (21), and each guide rail sliding block (121) is slidably mounted to the linear guide (25) on the same side.

5. The lift positioning structure with a clamping function according to claim 1, characterized in that: The self-locking module (50) is mounted to the front end of the seat plate (11) to lock the platform body (21) when the platform body (21) is accommodated in the assembly space (102).

6. The lifting positioning structure with clamping function according to claim 3, characterized in that: The pneumatic lifting unit (22) comprises a bottom cover (221) mounted to the bottom of the lifting execution cavity (202) and a lifting piston rod (222) slidably mounted to the lifting execution cavity (202), the piston head of the lifting piston rod (222) is located below the outer air path (301) to separate the pneumatic area of the lifting execution cavity (202) into upper and lower parts, and the rod body of the lifting piston rod (222) penetrates the bottom cover (221) and is connected with the seat plate (11).

7. The lift positioning structure with a clamping function according to claim 3, characterized in that: The lower part of the front pressing execution cavity (203) and the rear pressing execution cavity (204) is a pneumatic area, the upper part is an execution area, and the middle part is a narrow channel connecting the pneumatic area and the execution area; the pneumatic execution element (41) comprises a column seat (411), a compression spring (412) and a piston sleeve rod (413), the column seat (411) is formed with a base mounted to the bottom of the pneumatic area and a support column erected on the base, the compression spring (412) is sleeved on the support column; the piston sleeve rod (413) is sleeved on the compression spring (412), the piston head of the piston sleeve rod (413) is located below the communication position of the upper air path (303) and the pneumatic area to separate the pneumatic area into upper and lower parts, the rod head of the piston sleeve rod (413) penetrates the narrow channel into the execution area and is obliquely nested with the rear end of the pressing block (42).

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