A flexible automatic clamping and positioning device

Abstract

The present invention discloses a flexible automatic clamping and positioning device, comprising a mounting frame, a translation driving mechanism mounted on the mounting frame, a translation pushing seat connected to the translation driving mechanism, and a plurality of elastic pushing modules mounted on the translation pushing seat; a plurality of limit rail assemblies are also movably mounted on the top of the mounting frame, and each limit rail assembly includes two limit spacers arranged in parallel and spaced apart. The present invention can automatically position products of various specifications and sizes with regular shapes, and has a certain anti-pressure function, and the entire structure is a modular assembly, and the positioning dimensions of different products can be pre-set, so that the positioning switching of products of different specifications and sizes can be quickly realized, and flexible positioning is realized, and the versatility is strong, and it is also suitable for the positioning of multiple regular products or workpieces and the staggered loading between workpieces, saving loading time, improving the working efficiency of the equipment, and having strong practicality.

Description

Technical Field

[0001] The invention relates to the field of automation technology, and in particular to a flexible automatic clamping and positioning device. Background Art

[0002] At present, in the field of automated production technology, it is often necessary to clamp and position the workpiece before loading and unloading. The existing devices for positioning the workpiece basically adopt a clamping transmission method of a motor plus a screw or a cylinder plus a clamping block, which is costly and can only achieve the clamping and positioning of one workpiece. The clamping efficiency is low, and the workpiece clamping and positioning device is single-targeted, that is, one type of workpiece clamping and positioning device can only clamp workpieces of one specification, with poor compatibility, high maintenance and assembly costs, and is extremely inconvenient to use. Therefore, there is an urgent need for a flexible positioning device that can support the simultaneous positioning of multiple parts and is suitable for clamping parts of various specifications to solve the above problems. Summary of the invention

[0003] The purpose of the present invention is to provide a flexible automatic clamping and positioning device, which can automatically position products of various specifications and sizes with regular shapes, and has a certain anti-pressure function. The entire structure is a modular component, and the positioning dimensions of different products can be pre-set, so that the positioning switching of products of different specifications and sizes can be quickly realized, and flexible positioning is realized. It has strong versatility and is also suitable for the positioning of multiple regular products or workpieces and the staggered loading between workpieces, saving loading time, improving the working efficiency of the equipment, and having strong practicality.

[0004] In order to achieve the above purpose, the following technical solutions are adopted:

[0005] A flexible automatic clamping and positioning device comprises a mounting frame, a translation driving mechanism mounted on the mounting frame, a translation pushing seat connected to the translation driving mechanism, and a plurality of elastic pushing modules mounted on the translation pushing seat; a plurality of limiting guide rail assemblies are also movably mounted on the top of the mounting frame, and each limiting guide rail assembly comprises two limiting spacers arranged in parallel and spaced relation; each elastic pushing module is correspondingly arranged between two limiting spacers of a limiting guide rail assembly, and a positioning stop block is also provided at one end of each limiting guide rail assembly; the elastic pushing module is used for pushing the product placed in the two limiting spacers to slide under the drive of the translation driving mechanism, so as to position and clamp the product between the elastic pushing module and the positioning stop block.

[0006] Furthermore, a clamping and pushing module is provided on one side of each limiting guide rail assembly, and each clamping and pushing module is arranged correspondingly close to a positioning stop block; the clamping and pushing module is used to clamp and position the product that is pushed against the side wall of the positioning stop block so that an external transfer mechanism can transfer it to the next process.

[0007] Furthermore, the clamping and pushing module includes an adjusting clamping plate, a first fixed plate installed on a mounting frame, a first pushing cylinder installed on one side of the first fixed plate, and a first connecting block connected to the output shaft of the first pushing cylinder; a plurality of first waist-circle adjusting holes are opened on the top of the adjusting clamping plate, and the adjusting clamping plate is installed on the top of the first connecting block through the first waist-circle adjusting holes; a first gap is also left between the end of one of the limiting spacers of each limiting guide rail assembly and the positioning stop block, and one end of the adjusting clamping plate is arranged in the first gap.

[0008] Furthermore, a plurality of first sliding holes are formed on the top of the mounting frame, and each first sliding hole is correspondingly arranged between two limiting spacers of a limiting guide rail assembly; each elastic pushing module passes through a first sliding hole and extends outward.

[0009] Furthermore, the elastic pushing module includes a plurality of connecting columns arranged on the translation pushing seat and extending outward from the first sliding hole, a buffer connecting block installed on the connecting columns, a plurality of telescopic columns installed on the buffer connecting block, and a buffer pushing block installed at the end of the telescopic column.

[0010] Furthermore, a buffer spring is sleeved on the outer wall of each telescopic column, and two ends of each buffer spring are respectively in contact with the inner walls of the buffer connecting block and the buffer pushing block.

[0011] Furthermore, a slot-type photoelectric switch is installed on the top of the buffer push block, and a sensor sheet is installed on the top of the buffer connection block at a position corresponding to the slot-type photoelectric switch.

[0012] Furthermore, the translation drive mechanism includes a rotating motor installed on a mounting frame, a gear synchronous belt assembly connected to the output shaft of the rotating motor, and a translation guide rail assembly arranged on the mounting frame; the translation push seat is slidably arranged on the translation guide rail assembly and connected to the gear synchronous belt assembly.

[0013] By adopting the above scheme, the beneficial effects of the present invention are:

[0014] The device can automatically position products of various specifications and sizes with regular shapes, and has a certain anti-pressure function. The entire structure is a modular component, and the positioning dimensions of different products can be pre-set, so that the positioning switch of products of different specifications and sizes can be quickly realized, realizing flexible positioning, strong versatility, and also suitable for the positioning of multiple regular products or workpieces and staggered loading between workpieces, saving loading time, improving the working efficiency of the equipment, and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A perspective view of the present invention;

[0016] Figure 2 for Figure 1 Exploded diagram of

[0017] Figure 3 A three-dimensional diagram of the position-limiting guide rail assembly and the clamping and pushing module of the present invention;

[0018] Figure 4 A three-dimensional diagram of the elastic driving module of the present invention;

[0019] The accompanying drawings illustrate:

[0020] 1—mounting frame; 2—translation drive mechanism;

[0021] 3—Translation push seat; 4—Elastic push module;

[0022] 5—Limiting spacer; 6—Positioning stop block;

[0023] 7—clamping and pushing module; 11—first sliding hole;

[0024] 21—rotating motor; 22—gear timing belt assembly;

[0025] 23—translation guide rail assembly; 41—connecting column;

[0026] 42—buffer connection block; 43—telescopic column;

[0027] 44—buffer push block; 45—buffer spring;

[0028] 46—slot-type photoelectric switch; 47—sensor sheet;

[0029] 71—adjusting clamping plate; 72—first pushing cylinder;

[0030] 73 —First connection block. DETAILED DESCRIPTION

[0031] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] Reference Figures 1 to 4As shown, the present invention provides a flexible automatic clamping and positioning device, comprising a mounting frame 1, a translation driving mechanism 2 installed on the mounting frame 1, a translation pushing seat 3 connected to the translation driving mechanism 2, and a plurality of elastic pushing modules 4 installed on the translation pushing seat 3; a plurality of limiting guide rail assemblies are also movably installed on the top of the mounting frame 1, and each limiting guide rail assembly includes two limiting spacers 5 arranged in parallel and spaced apart; each elastic pushing module 4 is correspondingly arranged between two limiting spacers 5 of a limiting guide rail assembly, and a positioning stop block 6 is also provided at one end of each limiting guide rail assembly; the elastic pushing module 4 is used to push the product placed in the two limiting spacers 5 to slide under the drive of the translation driving mechanism 2, so as to position and clamp it between the elastic pushing module 4 and the positioning stop block 6.

[0033] Among them, a clamping and pushing module 7 is also provided on one side of each limiting guide rail assembly, and each clamping and pushing module 7 is arranged correspondingly close to a positioning stop block 6; the clamping and pushing module 7 is used to clamp and position the product that is pushed against the side wall of the positioning stop block 6 so that the external transfer mechanism can transfer it to the next process; the clamping and pushing module 7 includes an adjusting clamping plate 71, a first fixed plate installed on the mounting frame 1, a first pushing cylinder 72 installed on one side of the first fixed plate, and a first connecting block 73 connected to the output shaft of the first pushing cylinder 72; a plurality of first waist adjustment holes are opened on the top of the adjusting clamping plate 71, and the adjusting clamping plate 71 is installed on the top of the first connecting block 73 through the first waist adjustment holes; a first gap is also left between the end of one of the limiting spacers 5 of each limiting guide rail assembly and the positioning stop block 6, and one end of the adjusting clamping plate 71 is arranged in the first gap.

[0034] The top of the mounting frame 1 is also provided with a plurality of first sliding holes 11, and each first sliding hole 11 is correspondingly arranged between two limiting spacers 5 of a limiting guide rail assembly; each elastic pushing module 4 passes through a first sliding hole 11 and extends outward; the elastic pushing module 4 includes a plurality of connecting columns 41 arranged on the translation pushing seat 3 and passing through the first sliding hole 11 and extending outward, a buffer connecting block 42 installed on the connecting column 41, a plurality of telescopic columns 43 installed on the buffer connecting block 42, and a buffer pushing block 44 installed at the end of the telescopic column 43; the outer wall of each telescopic column 43 is also sleeved with a buffer elastic Spring 45, and the two ends of each buffer spring 45 are respectively abutted against the inner walls of the buffer connection block 42 and the buffer push block 44; a slot-type photoelectric switch 46 is also installed on the top of the buffer connection block 42, and a sensor sheet 47 is also installed on the top of the buffer connection block 42 corresponding to the slot-type photoelectric switch 46; the translation drive mechanism 2 includes a rotating motor 21 installed on the mounting frame 1, a gear timing belt assembly 22 connected to the output shaft of the rotating motor 21, and a translation guide rail assembly 23 arranged on the mounting frame 1; the translation push seat 3 is slidably arranged on the translation guide rail assembly 23 and connected to the gear timing belt assembly 22.

[0035] Working principle of the present invention:

[0036] Continue to refer to Figures 1 to 4 As shown, in this embodiment, a plurality of first adjustment fixing holes are also provided on the top of the mounting frame 1 of the device, and the limiting spacer 5 is installed on the top of the mounting frame 1 through the first adjustment fixing holes. The spacing between the two limiting spacers 5 can be adjusted through the first adjustment fixing holes according to actual use requirements to adapt to the positioning and clamping of products of different specifications and sizes, and the versatility is strong; and in this embodiment, an in-position sensor is also arranged under one end of each limiting guide rail assembly, which can sense the product against the inner wall of the positioning stop block 6, so as to clamp it by the clamping and pushing module 7 and transfer and load the material through the external transfer mechanism; when used specifically:

[0037] First, the device is installed in the equipment or other places such as workstations that need to be positioned, and is within the working range of a moving mechanism such as a robot; then, the robot grabs multiple regular products at one time by suction (grabbing), and puts the products 2-3mm above the mounting frame 1 between the two limiting strips 5; then, the rotating motor 21 drives the gear timing belt assembly 22 to operate, so as to drive the elastic pushing module 4 to move horizontally, and then push the product to slide along the limiting strip 5 until the product is pushed to the side wall of the positioning stop block 6. At this time, the in-place sensor senses that there is material above, and then clamps the pushing module 7 to push the product to the side wall of the limiting strip 5, forming a rectangular coordinate positioning, so that the external transfer mechanism can transfer the product to the next process.

[0038] When switching production for products of different specifications, the relative position of the limiting spacer 5 can be changed to adjust the distance between the two, thereby realizing the positioning function of the product of new specifications and sizes; at the same time, when the elastic pushing module 4 pushes the product to position, the buffer pushing block 44 will first contact the product, and then after the buffer spring 45 is compressed to a certain size (when the pressure of the buffer spring 45 is balanced with the total friction force of the product), the slot-type photoelectric switch 46 does not sense the signal. At this time, the translation drive mechanism 2 will continue to drive the elastic pushing module 4 to push the product to slide until the product is in place. At the same time, the buffer spring 45 will continue to compress so that the sensing sheet 47 is inserted into the slot-type photoelectric switch 46. When both the slot-type photoelectric switch 46 and the in-place sensor have signal input, it indicates that the product is in place. If, under the simultaneous push of multiple elastic pushing modules 4, one of the slot-type photoelectric switches 46 or the in-place sensor has no signal input, it indicates that the product is short of material or insufficient material, and material can be replenished in time, which is practical and convenient.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flexible automatic clamping and positioning device, characterized in that: It comprises a mounting frame, a translation driving mechanism mounted on the mounting frame, a translation pushing seat connected to the translation driving mechanism, and a plurality of elastic pushing modules mounted on the translation pushing seat; a plurality of limit guide rail assemblies are also movably mounted on the top of the mounting frame, and each limit guide rail assembly comprises two limit spacers arranged in parallel and at intervals; each elastic pushing module is correspondingly arranged between two limit spacers of a limit guide rail assembly, and a positioning stop block is also provided at one end of each limit guide rail assembly; the elastic pushing module is used to push the product placed in the two limit spacers to slide under the drive of the translation driving mechanism, so as to position and clamp the product between the elastic pushing module and the positioning stop block; A clamping and pushing module is also provided on one side of each limiting guide rail assembly, and each clamping and pushing module is arranged correspondingly close to a positioning stop block; the clamping and pushing module is used to clamp and position the product that is pushed against the side wall of the positioning stop block so that the external transfer mechanism can transfer it to the next process; The clamping and pushing module comprises an adjusting clamping plate, a first fixing plate mounted on a mounting frame, a first pushing cylinder mounted on one side of the first fixing plate, and a first connecting block connected to the output shaft of the first pushing cylinder; a plurality of first waist-circle adjusting holes are provided on the top of the adjusting clamping plate, and the adjusting clamping plate is installed on the top of the first connecting block through the first waist-circle adjusting holes; a first gap is also left between the end of one of the limiting spacers of each limiting guide rail assembly and the positioning stop block, and one end of the adjusting clamping plate is arranged in the first gap; The top of the mounting frame is also provided with a plurality of first sliding holes, and each first sliding hole is correspondingly arranged between two limiting spacers of a limiting guide rail assembly; each elastic pushing module passes through a first sliding hole and is extended outwardly.

2. The flexible automatic clamping and positioning device according to claim 1, characterized in that: The elastic pushing module includes a plurality of connecting columns arranged on the translation pushing seat and extending outward from the first sliding hole, a buffer connecting block installed on the connecting columns, a plurality of telescopic columns installed on the buffer connecting block, and a buffer pushing block installed on the end of the telescopic column.

3. The flexible automatic clamping and positioning device according to claim 2, characterized in that: A buffer spring is sleeved on the outer wall of each telescopic column, and two ends of each buffer spring are respectively in contact with the inner walls of the buffer connection block and the buffer push block.

4. The flexible automatic clamping and positioning device according to claim 3, characterized in that: A slot-type photoelectric switch is also installed on the top of the buffer push block, and a sensing sheet is also installed on the top of the buffer connection block at a position corresponding to the slot-type photoelectric switch.

5. The flexible automatic clamping and positioning device according to claim 1, characterized in that: The translation driving mechanism includes a rotating motor installed on a mounting frame, a gear synchronous belt assembly connected to the output shaft of the rotating motor, and a translation guide rail assembly arranged on the mounting frame; the translation pushing seat is slidably arranged on the translation guide rail assembly and connected to the gear synchronous belt assembly.

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