Lifting positioning structure with clamping function

Abstract

The invention discloses a lifting positioning structure with a clamping function. The lifting positioning structure comprises a mounting seat and a lifting positioning platform, the lifting positioning platform comprises a platform main body, two groups of pneumatic lifting units, a plurality of front pressing units and a plurality of rear pressing units; an air inlet layer, a main body layer and an air path layer are formed in the platform main body, two lifting execution cavities are formed in the middle of the main body layer, and a plurality of front pressure execution cavities and a plurality of rear pressure execution cavities are formed from one side to the other side of the main body layer at intervals; each lifting execution cavity is internally provided with one pneumatic lifting unit. The upper part of the gas path layer is provided with a rear pressure opening corresponding to each rear pressure execution cavity; the top of the air inlet layer is provided with a front pressure opening corresponding to each front pressure execution cavity; the front pressing unit and the rear pressing unit each comprise a pneumatic execution element installed in the front pressing execution cavity or the rear pressing execution cavity and a pressing block capable of being installed in the front pressing opening or the rear pressing opening in an advancing and retreating sliding mode. According to the clamping device, positioning and clamping of objects can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of positioning structures, and in particular to a lifting and positioning structure with a clamping function. Background Art

[0002] Automated production lines have become the key to improving production efficiency and product quality. The existing lifting and positioning structure usually includes a mounting seat, a positioning platform arranged on the top of the mounting seat and capable of lifting and lowering relative to the mounting seat, and a lifting drive module fixed at the bottom of the mounting seat. After the driving end of the lifting drive module passes through the mounting seat, it is connected to the bottom of the positioning platform. The driving end of the lifting drive module is extended and retracted to drive the positioning platform to lift and lower, so as to position the product in the automated production line.

[0003] However, the lifting and positioning structure itself does not have a clamping structure. When it is used in a complex and changeable workpiece processing environment, it has the disadvantages of not being able to accurately control the clamping force and occupying a large space. Especially in a small space or an automated production line, the lifting drive module located at the bottom of the mounting seat needs to occupy a large amount of space, which greatly limits the further improvement of production efficiency and product quality. Summary of the invention

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

[0005] To achieve the above object, the present invention provides the following technical solutions:

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

[0007] The lifting and positioning platform can be set to the assembly space to be lifted relative to the seat plate, and includes a platform body, two groups of pneumatic lifting units, a plurality of front pressure units and a plurality of rear pressure units; the platform body is sequentially formed with an air intake layer, a main body layer and an air path layer from the front end to the rear end, the main body layer is formed with a column cavity corresponding to the guide column and two lifting execution cavities located on both sides of the column cavity in the middle, and the main body layer is formed with a plurality of front pressure execution cavities and a plurality of rear pressure execution cavities at intervals from one side to the other side; each lifting execution cavity is equipped with a pneumatic lifting unit, and the driving end of the pneumatic lifting unit passes through the bottom of the main body layer and is connected to the seat plate, so that the driving end of the pneumatic lifting unit can be extended and retracted to drive the platform body to lift relative to the seat plate;

[0008] The air path layer has a rear pressure port at its upper part corresponding to each rear pressure execution cavity; the air intake layer has a front pressure port at its top corresponding to each front pressure execution cavity;

[0009] The front pressure unit and the rear pressure unit both include a pneumatic actuator installed in the front pressure execution chamber or the rear pressure execution chamber and a clamping block installed in the front pressure port or the rear pressure port and capable of sliding forward and backward. The driving end of the pneumatic actuator passes through the pneumatic area to the rear of the clamping block and is obliquely nested with the rear end of the clamping block. The driving end of the pneumatic actuator and the clamping block are respectively provided with nested oblique guide grooves on both sides for the driving end of the pneumatic actuator to extend and retract, thereby driving the clamping block to advance and retreat in the front pressure port or the rear pressure port.

[0010] As a further technical solution of the present invention: the air path layer is provided with an external air path at its upper part, which connects the upper part of the pneumatic area of ​​each lifting execution chamber to the outside; the air path layer is formed with an internal air path at its lower part, which connects the lower parts of the pneumatic areas of two lifting execution chambers, an upper air path which 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 path which 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 connected to the inner air path, a plurality of second air holes connected to the upper air path and a plurality of third air holes connected to the lower air path.

[0012] As a further technical solution of the present invention: a guide rail slider is installed on the side of the side panel facing the assembly space, and the lifting and positioning platform includes two linear guide rails installed relatively to 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 at the front end of the seat plate to lock the platform body when the platform body is driven to be accommodated 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 circuit, separating 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 execution chamber and the rear pressure execution chamber is the pneumatic zone, the upper part is the execution zone, and the middle part is a narrow passage connecting the pneumatic zone and the execution zone; the pneumatic actuator includes a column seat, a compression spring and a piston sleeve rod, the column seat is formed with a base installed at the bottom of the pneumatic zone and a pillar erected on the base, and the compression spring is sleeved on the pillar; the piston sleeve rod is sleeved on the compression spring, and the piston head of the piston sleeve rod is located below the connection between the upper air path and the pneumatic zone, separating the upper and lower parts of the pneumatic zone, and the rod head of the piston sleeve rod penetrates from the narrow passage into the execution 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 a clamping function, through the cooperation between the mounting seat 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 the occupied space is effectively reduced, and the driving end of the pneumatic lifting unit extends out to drive the platform body to rise to the specified position, and after the object is positioned, the front pressure unit and the rear pressure unit are started synchronously to achieve clamping of the object and precise control of the clamping force, effectively improving production efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0019] Figure 3 This is a cross-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 platform body.

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

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

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

[0024] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the protection scope of the present invention.

[0025] See also Figure 1 , Figure 2, a lifting and positioning structure with a clamping function, comprising a mounting seat 10 and a lifting and positioning platform 20;

[0026] The mounting seat 10 is provided with a seat plate 11 and two side plates 12 oppositely and vertically arranged on both sides of the seat plate 11. A guide column 101 is vertically arranged on the middle section of the seat plate 11. An assembly space 102 is formed between the two side plates 12.

[0027] Combined with reference Figure 3 , Figure 5 The lifting and positioning platform 20 can be lifted relative to the seat plate 11 and is arranged in the assembly space 102, and includes a platform body 21, two groups of pneumatic lifting units 22, a plurality of front pressure units 23 and a plurality of rear pressure units 24; the platform body 21 is sequentially formed with an air intake layer 211, a main body layer 212 and an air path layer 213 from the front end to the rear end, the main body layer 212 is formed with a column cavity 201 corresponding to the guide column 101 and two lifting execution cavities 202 located on both sides of the column cavity 201 in the middle thereof, and the main body layer 212 is respectively formed with a plurality of front pressure execution cavities 203 and a plurality of rear pressure execution cavities 204 at intervals from one side to the other side thereof; each lifting execution cavity 202 is equipped with a pneumatic lifting unit 22, and the driving 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, so that the driving end of the pneumatic lifting unit 22 can be extended and retracted, thereby driving the platform body 21 to lift relative to the seat plate 11;

[0028] Combined with reference Figure 4 The gas path layer 213 has a back pressure port 31 formed in its upper part corresponding to each back pressure execution chamber 204 and an external gas path 301 connecting the upper part of the pneumatic area of ​​each lifting execution chamber 202 to the outside; the gas path layer 213 has an internal gas path 302 connecting the lower parts of the pneumatic areas of two lifting execution chambers 202, an upper gas path 303 connecting the upper parts of the pneumatic areas of several front pressure execution chambers 203 and several back pressure execution chambers 204 to each other and to the outside, and a lower gas path 304 connecting the lower parts of the pneumatic areas of several front pressure execution chambers 203 and several back pressure execution chambers 204 to each other 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 has a plurality of first air holes 33 connected to the inner air path 302, a plurality of second air holes 34 connected to the upper air path 303, and a plurality of third air holes 35 connected to the lower air path 304 at its bottom;

[0030] Combined with reference Figure 6 , Figure 7The front pressure unit 23 and the rear pressure unit 24 both include a pneumatic actuator 41 installed in the front pressure execution chamber 203 or the rear pressure execution chamber 204 and a clamping block 42 installed in the front pressure port 32 or the rear pressure port 31 and capable of sliding forward and backward. The driving end of the pneumatic actuator 41 passes through the pneumatic area to the rear of the clamping block 42 and is obliquely nested with the rear end of the clamping block 42. The driving end of the pneumatic actuator 41 and the abutting surface of the clamping block 42 are matching inclined surfaces. The driving end of the pneumatic actuator 41 and the clamping block 42 are respectively provided with nested oblique guide grooves 421 on both sides for the driving end of the pneumatic actuator 41 to extend and retract, thereby driving the clamping block 42 to advance and retreat in the front pressure port 32 or the rear pressure port 31. The clamping block 42 can pass through one end to the outside to achieve clamping.

[0031] Furthermore, in the present embodiment, a guide rail slider 121 is installed on the side of the side panel 12 facing the assembly space 102, and the lifting and positioning platform 20 includes two linear guide rails 25 relatively installed on both sides of the platform body 21, and each guide rail slider 121 can be slidably installed on the linear guide rail 25 on the same side, and the seat plate 11 is provided with through openings 113 on both sides for the bottom of the linear guide rail 25 to pass through, so that when the driving end of the pneumatic lifting unit 22 is extended and retracted to drive the platform body 21 to lift and lower, the guide rail slider 121 cooperates with the linear guide rail 25 to provide stability for the lifting and lowering 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 seat plate 11 to lock the platform body 21 when the platform body 21 is driven to be accommodated in the assembly space 102.

[0033] Further, in this embodiment, please refer to Figure 1 , Figure 5The seat plate 11 is recessed at the front end of the middle section to form a locking opening 114, and the platform body 21 is recessed at the middle of the bottom end of the front end surface thereof with a locking groove 214; the self-locking module 50 comprises a fixing seat 51, a locking hook 52 and a torsion spring 53, the fixing seat 51 and the locking opening 114 are mounted on the front end of the seat plate 11 in a front-to-back correspondence, the rear end surface of the fixing seat 51 is provided with two base plates 511 which penetrate into the locking opening 114, and the locking hook 52 is hinged between the two base plates 511 by a pin shaft 54; the locking hook 52 is provided with a through hole 521 at the penetration position of the pin shaft 54, and the torsion spring 53 is sleeved At a section of the pin shaft 54 ​​located at the through opening 521, the two torsion arms of the torsion spring 53 respectively abut against the fixed seat 51 and the seat plate 11, 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 can be retracted, driving the platform body 21 to be accommodated in the assembly space 102, and the top of the locking hook 52 is correspondingly hooked into the locking groove 214 to achieve self-locking; and when the driving end of the pneumatic lifting unit 22 extends out, driving the platform body 21 to pass through the assembly space 102, the top of the locking hook 52 disengages from the locking groove 214, releasing the lock on the platform body 21.

[0034] Furthermore, according to actual needs, the specific structures of the pneumatic lifting unit 22, the front pressure unit 23 and the pneumatic actuator 41 of the rear pressure unit 24 can be flexibly designed. The pneumatic lifting unit 22 adopts a pneumatic actuator structure that separates the upper and lower parts of the pneumatic area of ​​the lifting execution chamber 202, and the pneumatic actuator 41 of the front pressure unit 23 and the rear pressure unit 24 adopts a structure that separates the upper and lower parts of the pneumatic area of ​​the front pressure execution chamber 203 or the rear pressure execution chamber 204, so that the pneumatic lifting unit 22 can input or output compressed air to the lower part of the pneumatic area of ​​the lifting execution chamber 202 through the first air hole 33 and the internal air path 302, and cooperate with the upper part of the pneumatic area of ​​the lifting execution chamber 202 connected to the outside by the external air path 301. The driving end of the pneumatic lifting unit 22 is extended and retracted; the front pressure unit 23 and the rear pressure unit 24, according to the needs, block the external connection of the upper air path 303, and maintain the external connection of the lower air path 304. The compressed air is input or output to the upper part of the pneumatic area of ​​the front pressure execution chamber 203 or the rear pressure execution chamber 204 through the second air hole 34 and the upper air path 303, and cooperates with the lower part of the pneumatic area of ​​the front pressure execution chamber 203 or the rear pressure execution chamber 204 connected to the outside by the lower air path 304, so as to realize the extension and retraction of the driving end of the pneumatic actuator 41. Similarly, the upper air path 303 can be maintained to be connected to the outside, the external connection of the lower air path 304 is blocked, and the compressed air is 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. The piston head of the lifting piston rod 222 is located below the external air path 301, separating the upper and lower parts of the pneumatic area of ​​the lifting execution chamber 202. 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 the present embodiment, the lower part of the front pressure execution chamber 203 and the rear pressure execution chamber 204 is the pneumatic zone, the upper part is the execution zone, and the middle part is the narrow passage connecting the pneumatic zone and the execution zone; the pneumatic actuator 41 includes a column seat 411, a compression spring 412 and a piston sleeve rod 413, the column seat 411 is formed with a base installed to the bottom of the pneumatic zone and a pillar erected on the base, and the compression spring 412 is sleeved on the pillar; the piston sleeve rod 413 is sleeved on the compression spring 412, and the piston head of the piston sleeve rod 413 is located below the connection between the upper air path 303 and the pneumatic zone, separating the upper and lower parts of the pneumatic zone; the rod head of the piston sleeve rod 413 penetrates from the narrow passage into the execution zone, separating the pneumatic zone from the execution zone, and the rod head is obliquely nested with the rear end of the clamping block 42.

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

[0038] To sum up, the lifting and positioning structure with clamping function of the present invention installs the pneumatic lifting unit 22, the front pressure unit 23 and the rear pressure unit 24 into the platform body 21 through the cooperation between the mounting seat 10 and the lifting and positioning platform 20. The overall structure is compact and the occupied space is effectively reduced. The driving end of the pneumatic lifting unit 22 extends out to drive the platform body 21 to rise to the specified position. After positioning the object, the front pressure unit 23 and the rear pressure unit 24 are started synchronously to achieve clamping of the object and precise control of the clamping force, thereby effectively improving production efficiency and product quality.

[0039] As long as it does not violate the creative ideas of the present invention, any combination of the various embodiments of the present invention shall be regarded as the contents disclosed by the present invention; within the technical concept of the present invention, any combination of various simple modifications of the technical scheme and different embodiments that does not violate the creative ideas of the present invention shall be within the protection scope of the present invention.

Claims

1. A lifting and positioning structure with a clamping function, characterized in that: The invention comprises a mounting seat (10) and a lifting and positioning platform (20); the mounting seat (10) is provided with a seat plate (11) and two side plates (12) vertically arranged on both sides of the seat plate (11) opposite to each other, a guide column (101) vertically arranged on the middle section of the seat plate (11), and an assembly space (102) is formed between the two side plates (12); The lifting and positioning platform (20) can be lifted relative to the seat plate (11) and arranged in the assembly space (102), and comprises a platform body (21), two groups of pneumatic lifting units (22), a plurality of front pressure units (23) and a plurality of rear pressure units (24); the platform body (21) is sequentially formed with an air intake layer (211), a main body layer (212) and an air path layer (213) from the front end to the rear end, and the main body layer (212) is formed with a column cavity (201) corresponding to the guide column (101) and a gas path layer (213) in the middle thereof. 01) two lifting execution chambers (202) on both sides, and the main body layer (212) is formed with a plurality of front pressure execution chambers (203) and a plurality of rear pressure execution chambers (204) at intervals from one side to the other side; each lifting execution chamber (202) is equipped with a pneumatic lifting unit (22), and the driving 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), so that the driving end of the pneumatic lifting unit (22) can be extended and retracted, thereby driving the platform body (21) to rise and fall relative to the seat plate (11); The air path layer (213) has a rear pressure port (31) at its upper portion corresponding to each rear pressure execution chamber (204); and the air intake layer (211) has a front pressure port (32) at its top portion corresponding to each front pressure execution chamber (203); The front pressure unit (23) and the rear pressure unit (24) both include a pneumatic actuator (41) installed in the front pressure execution chamber (203) or the rear pressure execution chamber (204) and a clamping block (42) installed in the front pressure port (32) or the rear pressure port (31) and capable of sliding forward and backward. The driving end of the pneumatic actuator (41) passes through the pneumatic area to the rear of the clamping block (42) and is obliquely nested with the rear end of the clamping block (42). The driving end of the pneumatic actuator (41) and the clamping block (42) are respectively provided with oblique guide grooves (421) that are nested with each other on both sides, so that the driving end of the pneumatic actuator (41) can be extended and retracted, thereby driving the clamping block (42) to move forward and backward in the front pressure port (32) or the rear pressure port (31).

2. The lifting and positioning structure with clamping function according to claim 1, characterized in that: The air path layer (213) is provided with an external air path (301) at its upper part for connecting the upper part of the pneumatic area of ​​each lifting execution chamber (202) to the outside; the air path layer (213) is provided with an internal air path (302) at its lower part for connecting the lower parts of the pneumatic areas of two lifting execution chambers (202), an upper air path (303) for connecting the upper parts of the pneumatic areas of a plurality of front pressure execution chambers (203) and a plurality of rear pressure execution chambers (204) to each other and to the outside, and a lower air path (304) for connecting the lower parts of the pneumatic areas of a plurality of front pressure execution chambers (203) and a plurality of rear pressure execution chambers (204) to each other and to the outside.

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

4. The lifting and positioning structure with clamping function according to claim 1, characterized in that: A guide rail slider (121) is installed on the side of the side plate (12) facing the assembly space (102), and the lifting and positioning platform (20) includes two linear guide rails (25) relatively installed on both sides of the platform body (21), and each guide rail slider (121) can be slidably installed on the linear guide rail (25) on the same side.

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

6. The lifting and positioning structure with clamping function according to claim 3, characterized in that: The pneumatic lifting unit (22) comprises 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) and capable of being lifted and lowered. The piston head of the lifting piston rod (222) is located below the external air path (301) and separates 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).

7. The lifting and positioning structure with clamping function according to claim 3, characterized in that: The lower part of the front pressure execution chamber (203) and the rear pressure execution chamber (204) is the pneumatic zone, the upper part is the execution zone, and the middle part is a narrow passage connecting the pneumatic zone and the execution zone; the pneumatic actuator (41) includes a column seat (411), a compression spring (412) and a piston sleeve rod (413); the column seat (411) is formed with a base installed at the bottom of the pneumatic zone and a pillar erected on the base, and the compression spring (412) is sleeved on the pillar; the piston sleeve rod (413) is sleeved on the compression spring (412), and the piston head of the piston sleeve rod (413) is located below the connection between the upper air path (303) and the pneumatic zone, separating the upper and lower parts of the pneumatic zone, and the rod head of the piston sleeve rod (413) penetrates from the narrow passage into the execution zone and is obliquely nested with the rear end of the clamping block (42).

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