Quick clamping mechanism

Abstract

The invention provides a rapid taking and clamping mechanism which is suitable for rapid clamping operation of workpieces in a narrow space area, small in occupied space and convenient to reasonably arrange. The device comprises a mounting seat which comprises an upper mounting plate; the first clamping jaw assembly comprises a first clamping jaw; the second clamping jaw assembly comprises a second clamping jaw; a first telescopic cylinder; and a rotation driving mechanism; a first clamping jaw assembly and a second clamping jaw assembly which are arranged in a linear sliding mode are installed on the two sides of the upper installation plate in the length direction correspondingly, and the two ends of a pair of rotating output rods of the rotating driving mechanism are in pivot joint with the first clamping jaw assembly and the second clamping jaw assembly at the corresponding positions through transmission rods correspondingly. The first clamping jaw assembly is further fixedly provided with a first telescopic air cylinder, the output end of the first telescopic air cylinder is fixedly connected with a first clamping jaw, the first telescopic air cylinder drives the first clamping jaw to retract inwards and protrude outwards, and when the first clamping jaw retracts inwards, the clamping end of the first clamping jaw is lower than the inner end face of a workpiece to be clamped.

Description

Technical Field

[0001] The present invention relates to the technical field of workpiece pressing, and specifically to a quick clamping and picking mechanism. Background Art

[0002] In the existing fixture mechanism, generally a pair of clamping jaws are provided at the same time. When the two clamping jaws approach each other simultaneously, they are used to clamp the workpiece. After that, under the action of an external transfer mechanism, the fixture mechanism is driven to a corresponding position. Then, the fixture mechanism needs to release the clamping jaws so that the workpiece can be placed at the corresponding position. After that, it is necessary to expand the clamping jaws and release the clamping of the product. Then, through axial telescoping in the front and back directions or lifting up and down, the clamping jaws are separated from the corresponding surface area of the workpiece, and then a left and right translation operation is performed. In this process, if there is a spatial area where the clamping jaws can only perform left and right translation movements, that is to say, when the workpiece carried by the fixture mechanism reaches the position, the space at this position is narrow. Since a driving mechanism for driving the entire fixture mechanism in the front and back or up and down directions needs to be additionally provided, there is no extra space for front and back or up and down movement operations. Therefore, the existing clamping mechanism is not suitable for picking and placing workpieces in narrow space areas; thus, there is an urgent need to develop a clamping mechanism that can reliably pick and place workpieces in narrow space areas. Summary of the Invention

[0003] In view of the above problems, the present invention provides a quick clamping and picking mechanism, which is applicable to quickly clamping workpieces in narrow space areas, occupies a small space, and is convenient for reasonable layout.

[0004] A quick clamping and picking mechanism, characterized in that it includes:

[0005] A mounting seat, which includes an upper mounting plate;

[0006] A first clamping jaw assembly, which includes a first clamping jaw;

[0007] A second clamping jaw assembly, which includes a second clamping jaw;

[0008] A first telescopic cylinder;

[0009] And a rotation driving mechanism;

[0010] The first clamping jaw assembly and the second clamping jaw assembly are linearly slidably arranged on both sides in the length direction of the upper mounting plate. The two ends of a pair of rotating output rods of the rotation driving mechanism are respectively pivotally connected to the corresponding first clamping jaw assembly and second clamping jaw assembly through transmission rods. The first clamping jaw assembly is also fixedly provided with a first telescopic cylinder. The output end of the first telescopic cylinder is fixedly connected to the first clamping jaw. The first telescopic cylinder drives the first clamping jaw to retract and protrude. When the first clamping jaw is in the retracted state, the clamping end of the first clamping jaw is lower than the inner end face of the workpiece to be clamped. The rotation driving mechanism rotates to drive the first clamping jaw and the second clamping jaw to move towards or away from each other.

[0011] It is further characterized in that:

[0012] Linear guide rails are respectively fixedly arranged on both sides in the width direction of the upper surface of the upper mounting plate. The bottom of the rotary drive mechanism is fixedly installed at the central position of the upper surface of the upper mounting plate. Both ends of a pair of rotating output rods of the rotary drive mechanism are respectively fixedly connected to one end of a first transmission rod and one end of a second transmission rod;

[0013] The first jaw assembly includes a first horizontal mounting plate, a vertical mounting plate, and a first jaw. The upper surface of the first horizontal mounting plate is used for pivotally connecting the other end of the first transmission rod. The lower surface of the first horizontal mounting plate is connected to the corresponding linear guide rail through a guide rail pair. The lower end of the vertical mounting plate is fixedly provided with the first telescopic cylinder. The upper output end of the first telescopic cylinder is fixedly connected to the lower mounting end of the first jaw. A first clamping block is fixedly provided at the clamping end of the first jaw;

[0014] The second jaw assembly includes a second horizontal mounting plate and a second jaw. The upper surface of the second horizontal mounting plate is used for pivotally connecting the other end of the second transmission rod. The lower surface of the second horizontal mounting plate is connected to the corresponding linear guide rail through a guide rail pair. The lower mounting end of the second jaw is fixedly connected to the outer end surface of the second horizontal mounting plate. A second clamping block is fixedly provided at the clamping end of the second jaw;

[0015] In the clamping state, the first clamping block and the second clamping block are at the same height position for clamping the workpiece. When the clamping mechanism needs to disengage from the workpiece, the first telescopic cylinder drives the first jaw to retract downward so that the first clamping block is lower than the lower surface of the workpiece, and an external driving member drives the entire mounting seat to horizontally move outward to the outer side of the space area, thereby disengaging from the narrow space clamping area;

[0016] The mounting seat further includes a lower mounting plate. There is an installation interval between the upper mounting plate and the lower mounting plate. A second horizontal telescopic cylinder is arranged in the installation interval. The second horizontal telescopic cylinder is arranged parallel to the length direction of the linear guide rail. The output end of the second horizontal telescopic cylinder is fixedly connected to the first horizontal mounting plate or the second horizontal mounting plate through a connecting block, so as to drive the two horizontal mounting plates to move synchronously toward or away from each other through the rotary drive mechanism for operation;

[0017] A cylinder mounting frame is fixedly provided on the lower mounting plate, and the second horizontal telescopic cylinder is fixedly installed on the cylinder mounting frame to ensure the reliable installation of the second horizontal telescopic cylinder;

[0018] Preferably, the first jaw is located at the inner end position of the spatial clamping area, and the output end of the second horizontal telescopic cylinder is fixedly connected to the first horizontal mounting plate through a connecting block, enabling the output end of the second horizontal telescopic cylinder to have sufficient stroke to drive the first jaw and the second jaw to perform clamping or opening actions;

[0019] A corresponding guide plate is also covered outside the vertical mounting plate corresponding to the outer contour of the first jaw, and the guide plate and the vertical mounting plate are combined to reliably guide the linear movement of the first jaw;

[0020] The second horizontal mounting plate is also equipped with a sensor, which is used to sense the workpiece to ensure reliable clamping and opening.

[0021] After adopting the present invention, the first jaw assembly is arranged corresponding to the inner side of the narrow spatial clamping area. When it is necessary to release the workpiece when entering the spatial clamping area, the rotation driving mechanism moves actively or passively, so that the two jaw assemblies move away from each other. Then, the first telescopic cylinder drives the first jaw to retract. When the first jaw cylinder is in the retracted state, the clamping end of the first jaw is set lower than the inner end face of the workpiece to be clamped. Then, the external driving mechanism drives the entire clamping mechanism to move outward along the length direction of the upper mounting plate, so that the clamping mechanism disengages from the workpiece; when the clamping mechanism needs to enter the hole clamping area to clamp the workpiece, the clamping end of the first jaw is retracted. Then, the external power mechanism drives the entire clamping mechanism to move towards the workpiece position, so that the first jaw and the second jaw run to both sides of the workpiece. Then, the first telescopic cylinder drives the first jaw to protrude outward. Then, the rotation driving mechanism moves actively or passively, so that the two jaw assemblies move towards each other to clamp the workpiece. Then, the external driving mechanism drives the entire clamping mechanism to move outward along the length direction of the upper mounting plate, so that the clamping mechanism takes out the workpiece from the narrow space position; it is applicable to the rapid clamping operation of workpieces in a narrow space, occupies a small space, and is convenient for reasonable layout. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic three-dimensional structure diagram of the present invention Figure 1 ;

[0023] Figure 2 Schematic three-dimensional structure diagram of the present invention Figure 2 ;

[0024] Figure 3 Schematic three-dimensional structure diagram of the present invention Figure 3 ;

[0025] The names corresponding to the numbers in the figure are as follows:

[0026] Mounting base 10, upper mounting plate 11, long slot avoidance hole 111, linear guide rail 12, lower mounting plate 13, first jaw assembly 20, first jaw 21, first clamping block 211, first horizontal mounting plate 22, vertical mounting plate 23, guide plate 24, second jaw assembly 30, second jaw 31, second clamping block 311, second horizontal mounting plate 32, first telescopic cylinder 40, and rotary drive mechanism 50, rotating output rod 51, first transmission rod 52, second transmission rod 53, second horizontal telescopic cylinder 60, connecting block 61, cylinder mounting bracket 62, sensor 70. Detailed implementation

[0027] A quick pick-and-clamp mechanism, see Figures 1 - 3 , which includes a mounting base 10, a first jaw assembly 20, a second jaw assembly 30, a first telescopic cylinder 40, and a rotary drive mechanism 50;

[0028] The mounting base 10 includes an upper mounting plate 11; the first jaw assembly 20 includes a first jaw 21; the second jaw assembly 30 includes a second jaw 31;

[0029] On both sides in the length direction of the upper mounting plate 11, a first jaw assembly 20 and a second jaw assembly 30 are respectively installed in a linearly sliding manner. The two ends of a pair of rotating output rods 51 of the rotary drive mechanism 50 are respectively pivotally connected to the first jaw assembly 20 and the second jaw assembly 30 at corresponding positions through transmission rods. The first jaw assembly 20 is also fixedly provided with a first telescopic cylinder 40. The output end of the first telescopic cylinder 40 is fixedly connected to the first jaw 21. The first telescopic cylinder 40 drives the first jaw 21 to retract and protrude. When the first jaw 21 is in the retracted state, the clamping end of the first jaw 21 is lower than the inner end surface of the workpiece to be clamped. The rotary drive mechanism 50 rotates to drive the first jaw 21 and the second jaw 31 to move towards or away from each other.

[0030] During specific implementation: Linear guide rails 12 are respectively fixedly provided on both sides in the width direction of the upper surface of the upper mounting plate 11. The bottom of the rotary drive mechanism 50 is fixedly installed at the central position of the upper surface of the upper mounting plate 11. The two ends of a pair of rotating output rods 51 of the rotary drive mechanism 50 are respectively fixedly connected to one end of a first transmission rod 52 and one end of a second transmission rod 53;

[0031] The first jaw assembly 20 includes a first horizontal mounting plate 22, a vertical mounting plate 23, and a first jaw 21. The upper surface of the first horizontal mounting plate 22 is used for pivotally connecting the other end of the first transmission rod 52. The lower surface of the first horizontal mounting plate 22 is connected to the corresponding linear guide rail 12 through a guide rail pair. The lower end of the vertical mounting plate 23 is fixedly provided with a first telescopic cylinder 40. The upper output end of the first telescopic cylinder 40 is fixedly connected to the lower mounting end of the first jaw 21. The clamping end of the first jaw 21 is fixedly provided with a first clamping block 211;

[0032] The second jaw assembly 30 includes a second horizontal mounting plate 32 and a second jaw 31. The upper surface of the second horizontal mounting plate 32 is used for pivotally connecting the other end of the second transmission rod 53. The lower surface of the second horizontal mounting plate 32 is connected to the corresponding linear guide 12 through a guide rail pair. The lower mounting end of the second jaw 31 is fixedly connected to the outer end face of the second horizontal mounting plate 32, and a second clamping block 311 is fixedly provided at the clamping end of the second jaw 31;

[0033] In the clamping state, the first clamping block 211 and the second clamping block 311 are at the same height position for clamping the workpiece. When the clamping mechanism needs to disengage from the workpiece, the first telescopic cylinder 40 drives the first jaw 21 to retract downward, so that the first clamping block 211 is lower than the lower surface of the workpiece, and the external driving member drives the entire mounting seat to horizontally move outward to the outer side of the space area, thereby disengaging from the narrow space clamping area.

[0034] In a specific embodiment, the mounting seat 10 further includes a lower mounting plate 13. There is a mounting interval between the upper mounting plate 11 and the lower mounting plate 13. A second horizontal telescopic cylinder 60 is arranged in the mounting interval. The second horizontal telescopic cylinder 60 is arranged parallel to the length direction of the linear guide 12. The output end of the second horizontal telescopic cylinder 60 is fixedly connected to the first horizontal mounting plate 22 or the second horizontal mounting plate 32 through a connecting block 61, and then drives the two horizontal mounting plates to move synchronously towards or away from each other through the rotary drive mechanism 50 for operation;

[0035] A cylinder mounting bracket 62 is fixedly provided on the lower mounting plate 13, and the second horizontal telescopic cylinder 60 is fixedly installed on the cylinder mounting bracket 62 to ensure the reliable installation of the second horizontal telescopic cylinder 60.

[0036] In a specific embodiment, the first jaw 21 is located at the inner end position of the space clamping area. The output end of the second horizontal telescopic cylinder 60 is fixedly connected to the first horizontal mounting plate 22 through a connecting block. At this time, a corresponding long slot relief hole 111 is provided on the upper mounting plate 11, which enables the output end of the second horizontal telescopic cylinder 60 to have sufficient stroke to drive the first jaw 21 and the second jaw 31 to perform clamping or opening actions.

[0037] In a specific embodiment, a corresponding guide plate 24 is also covered outside the vertical mounting plate 23 corresponding to the outer contour of the first jaw 21. The guide plate 24 and the vertical mounting plate 23 are combined to reliably guide the linear movement of the first jaw 23;

[0038] The second horizontal mounting plate 32 is also provided with a sensor 70 for sensing the workpiece to ensure reliable clamping and opening.

[0039] Its working principle is as follows. The first jaw assembly is arranged corresponding to the inner side of the narrow space clamping area. It has two working states. First, when it is necessary to release the workpiece when entering the space clamping area, the rotation driving mechanism acts actively or passively, so that the two jaw assemblies move away from each other. Then, the first telescopic cylinder drives the first jaw to retract. When the first jaw cylinder is in the retracted state, the clamping end of the first jaw is arranged lower than the inner end face of the workpiece to be clamped. Then, the external driving mechanism drives the entire clamping mechanism to move outward along the length direction of the upper mounting plate, so that the clamping mechanism disengages from the workpiece. Second, when the clamping mechanism needs to enter the narrow clamping area to clamp the workpiece, the clamping end of the first jaw is retracted. Then, the external power mechanism drives the entire clamping mechanism to move towards the workpiece position, so that the first jaw and the second jaw run to both sides of the workpiece. Then, the first telescopic cylinder drives the first jaw to protrude. Then, the rotation driving mechanism acts actively or passively, so that the two jaw assemblies move towards each other to clamp the workpiece. Then, the external driving mechanism drives the entire clamping mechanism to move outward along the length direction of the upper mounting plate, so that the clamping mechanism takes out the workpiece from the narrow space position.

[0040] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed claims.

[0041] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A quick-access clamping mechanism, characterized in that: It includes: A mounting base including an upper mounting plate; A first clamping jaw assembly, comprising a first clamping jaw; A second clamping jaw assembly, comprising a second clamping jaw; The first telescopic cylinder; and a rotary drive mechanism; A first clamping jaw assembly and a second clamping jaw assembly arranged for linear sliding are respectively installed on both sides in the length direction of the upper mounting plate. The two ends of a pair of rotating output rods of the rotary drive mechanism are respectively pivotally connected to the first clamping jaw assembly and the second clamping jaw assembly at corresponding positions through a transmission rod. The first clamping jaw assembly is also fixed with a first telescopic cylinder. The output end of the first telescopic cylinder is fixedly connected to the first clamping jaw. The first telescopic cylinder drives the first clamping jaw to retract and convex. When the first clamping jaw is in the retracted state, the clamping end of the first clamping jaw is lower than the inner end surface of the workpiece to be clamped. The rotary drive mechanism rotates to drive the first clamping jaw and the second clamping jaw to move toward or away from each other.

2. A quick-access clamping mechanism according to claim 1, characterized in that: Linear guide rails are fixed on both sides of the width direction of the upper surface of the upper mounting plate, the bottom of the rotary drive mechanism is fixed at the center position of the upper surface of the upper mounting plate, and the two ends of a pair of rotating output rods of the rotary drive mechanism are respectively fixed to one end of the first transmission rod and one end of the second transmission rod.

3. A quick-access clamping mechanism according to claim 2, characterized in that: The first clamping jaw assembly includes a first horizontal mounting plate, a vertical mounting plate, and a first clamping jaw. The upper surface of the first horizontal mounting plate is used to pivotally connect the other end of the first transmission rod. The lower surface of the first horizontal mounting plate is connected to a linear guide rail at a corresponding position through a guide rail pair. The first telescopic cylinder is fixedly disposed at the lower end of the vertical mounting plate. The upper output end of the first telescopic cylinder is fixedly connected to the lower mounting end of the first clamping jaw. The clamping end of the first clamping jaw is fixedly disposed with a first clamping block.

4. A quick-access clamping mechanism according to claim 3, characterized in that: The second clamping jaw assembly includes a second horizontal mounting plate and a second clamping jaw. The upper surface of the second horizontal mounting plate is used to pivotally connect the other end of the second transmission rod. The lower surface of the second horizontal mounting plate is connected to the linear guide rail at the corresponding position through a guide rail pair. The lower mounting end of the second clamping jaw is fixedly connected to the outer end surface of the second horizontal mounting plate. The clamping end of the second clamping jaw is fixedly provided with a second clamping block.

5. A quick-access clamping mechanism according to claim 4, characterized in that: In the clamping state, the first clamping block and the second clamping block are at the same height position and are used to clamp the workpiece. When the clamping mechanism needs to detach from the workpiece, the first telescopic cylinder drives the first clamping jaw to retract so that the first clamping block is lower than the lower surface of the workpiece, and the external driving member drives the entire mounting seat to move horizontally to the outside of the space area, thereby detaching from the narrow space clamping area.

6. A quick-access clamping mechanism according to claim 1, characterized in that: The mounting seat also includes a lower mounting plate, and an installation gap is left between the upper mounting plate and the lower mounting plate. A second horizontal telescopic cylinder is arranged in the installation gap, and the second horizontal telescopic cylinder is arranged parallel to the length direction of the linear guide rail. The output end of the second horizontal telescopic cylinder is fixedly connected to the first horizontal mounting plate or the second horizontal mounting plate through a connecting block, thereby driving the two horizontal mounting plates to move synchronously toward or away from each other through a rotating drive mechanism.

7. A quick-access clamping mechanism according to claim 6, characterized in that: A cylinder mounting frame is fixedly arranged on the lower mounting plate, and the second horizontal telescopic cylinder is fixedly mounted on the cylinder mounting frame.

8. A quick-access clamping mechanism according to claim 7, characterized in that: The first clamping claw is located at the inner end of the space clamping area, and the output end of the second horizontal telescopic cylinder is fixedly connected to the first horizontal mounting plate through a connecting block.

9. A quick-access clamping mechanism according to claim 3, characterized in that: The outer side of the vertical mounting plate is also covered with a corresponding guide plate at a position corresponding to the outer contour of the first clamping jaw.

10. A quick-access clamping mechanism according to claim 4, characterized in that: The second horizontal mounting plate is also mounted with a sensor, and the sensor is used to sense the workpiece.

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