Moving and static clamping jaw jig

Abstract

This utility model discloses a movable and stationary gripper fixture, including a stationary gripper. A base plate has an upper and lower top surface on the same side, and the stationary gripper is formed at the junction of the upper and lower top surfaces. A movable gripper is movably assembled with the base plate. A linear drive cylinder has its output rod movably assembled with the movable gripper via a wedge block. The movement direction of the movable gripper is perpendicular to the movement direction of the output rod. The base plate surface includes four parallel stationary grippers, with adjacent pairs of stationary grippers arranged in a mirror-symmetrical manner, forming a recessed clamping groove between them. Each linear drive cylinder's output rod is mirror-symmetrically assembled with two movable grippers. This utility model utilizes the combination of a fixed stationary gripper and a movable gripper, with the linear drive cylinder driving the wedge block to drive the relative movement of the movable and stationary grippers. This simplifies the overall structure of the fixture and reduces costs.

Description

Technical Field

[0001] This utility model relates to the field of clamping fixtures, specifically to a dynamic and static clamping fixture. Background Technology

[0002] In the field of automated machining and assembly, fixtures are crucial for workpiece positioning and clamping. Currently, most widely used gripper designs employ a dual-gripper, actively driven configuration, where a cylinder drives a pair of grippers to move closer together or further apart. Objectively speaking, this type of gripper meets the needs of most situations. However, in some batch clamping applications, engineers are seeking lower-cost, simpler, and more reliable gripper solutions while still ensuring proper clamping. Utility Model Content

[0003] The problem to be solved by this utility model is to provide a dynamic and static gripper fixture.

[0004] To solve the above problems, this utility model provides a dynamic and static gripper fixture. The technical solution adopted by this utility model to solve its technical problems and achieve the above objectives is as follows: A movable and stationary gripper fixture includes: a stationary gripper, wherein a base plate has an upper top surface and a lower top surface on the same side, and the junction of the upper top surface and the lower top surface forms the stationary gripper; a movable gripper, which is movably assembled with the base plate; and a linear drive cylinder, wherein the output rod of the linear drive cylinder is movably assembled with the movable gripper via a wedge block, and the wedge block utilizes the component force generated by its inclined surface to make the movement direction of the movable gripper perpendicular to the movement direction of the output rod; wherein the base plate surface includes four parallel stationary grippers, two adjacent stationary grippers are arranged in a mirror-symmetric manner, and a recessed clamping groove is formed between the two adjacent mirror-symmetric stationary grippers; several movable grippers are movably assembled on the two middle stationary grippers of the four stationary grippers, and two movable grippers are mirror-symmetrically assembled on the output rod of each linear drive cylinder.

[0005] As a further improvement of this utility model, the base plate has several through clearance grooves, the movable gripper has an active space in the clearance grooves, and the active direction of the movable gripper is perpendicular to the length direction of the gripping groove; the static gripper with clearance grooves is an intermittent static gripper, and the static gripper without clearance grooves is a continuous static gripper.

[0006] As a further improvement of this utility model, several clearance grooves are arranged at equal intervals on the stationary gripper, and the arrangement direction of several linear drive cylinders is parallel to the length direction of the gripping groove.

[0007] As a further improvement of this utility model, the top of the movable gripper has a first positive corner edge, and the bottom of the first positive corner edge has a first negative corner edge; the top of the stationary gripper has a second positive corner edge, and the bottom of the second positive corner edge has a second negative corner edge; the angles of the first positive corner edge and the second positive corner edge are equal, and the angles of the first negative corner edge and the second negative corner edge are equal.

[0008] As a further improvement of this utility model, the wedge block has T-shaped blocks extending obliquely on both sides, and the movable jaw and the T-shaped blocks are movably assembled through the T-shaped groove.

[0009] As a further improvement of this utility model, a transition block is provided between the wedge block and the moving jaw, and a T-shaped groove is recessed in the surface of the transition block. The moving jaw and the transition block are assembled by fasteners.

[0010] As a further improvement of this utility model, the cylinder body of the linear drive cylinder is fixed to the lower surface of the base plate, the wedge block has a stepped hole in the middle, and one end of the output rod of the linear drive cylinder is coaxially fixed with a bolt, which passes through the stepped hole and is fixed.

[0011] As a further improvement of this utility model, the closer the wedge block is to the linear drive cylinder, the more the movable grippers on both sides of the wedge block move to the sides.

[0012] The beneficial effects of using the dynamic and static gripper fixture of this application are: The structure employs a combination of fixed stationary jaws and movable jaws, utilizing a linear drive cylinder to power a wedge block, which in turn drives the relative motion of the movable and stationary jaws. This dynamic interplay simplifies the overall structure and reduces costs. Four parallel stationary jaws are arranged symmetrically in a mirror pattern to form recessed clamping grooves, providing two limiting grooves for the workpiece. Furthermore, the wedge block efficiently converts the linear motion of the drive cylinder into the vertical clamping action of the movable jaws, optimizing the spatial layout and force transmission path. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a top view of one embodiment of the present invention; Figure 2 This is a cross-sectional view (AA) of one embodiment of the present invention; Figure 3 This is a perspective view of one embodiment of the present utility model; Figure 4 This is an assembly drawing of the moving gripper and the linear drive cylinder according to one embodiment of the present invention. Figure 5 This is an assembly diagram of the moving gripper and the center block according to one embodiment of the present invention.

[0015] 1-Linear drive cylinder; 2-Output rod; 3-Bolt; 4-Wedge block; 401-Step hole; 402-T-block; 5-Transition block; 501-T-slot; 6-Moving gripper; 601-First external corner edge; 602-First internal corner edge; 7-Static gripper; 701-Second external corner edge; 702-Second internal corner edge; 703-Upper top surface; 704-Lower top surface; 705-Allowing groove; 706-Continuous static gripper; 707-Intermittent static gripper; 8-Clamping groove. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to specific embodiments: To achieve the purpose of this utility model, a movable and stationary gripper fixture includes: a stationary gripper 7, on the same side of a base plate having an upper top surface 703 and a lower top surface 704, with the stationary gripper 7 formed at the junction of the upper top surface 703 and the lower top surface 704; a movable gripper 6, movably assembled with the base plate; and a linear drive cylinder 1, the output rod 2 of which is movably assembled with the movable gripper 6 via a wedge block 4, the movement direction of the movable gripper 6 being perpendicular to the movement direction of the output rod 2. The base plate surface includes four parallel stationary grippers 7, with adjacent two stationary grippers 7 arranged in a mirror-symmetrical manner, forming a recessed clamping groove 8 between the mirror-symmetrically arranged adjacent stationary grippers 7. Several movable grippers 6 are movably assembled on the two middle stationary grippers 7, and two movable grippers 6 are mirror-symmetrically assembled on the output rod 2 of each linear drive cylinder 1.

[0017] The number of stationary grippers 7 can be more than four, and the number of gripping slots 8 can be more than two; they can be increased or decreased according to the actual needs of the project.

[0018] In some other embodiments of this utility model, the base plate has a plurality of through clearance grooves 705, and the movable gripper 6 has an active space within the clearance grooves 705, the active direction of the movable gripper 6 being perpendicular to the length direction of the gripping groove 8. Figure 1 As shown, the stationary gripper 7 with the clearance groove 705 is an intermittent stationary gripper 707, and the stationary gripper 7 without the clearance groove 705 is a continuous stationary gripper 706.

[0019] The beneficial effects of adopting the above technical solution are: the through clearance groove 705 opened in the base plate provides the necessary activity space for the moving gripper 6, ensuring its smooth operation without interference. At the same time, the presence or absence of the clearance groove 705 distinguishes the stationary gripper 7 into intermittent stationary gripper 707 and continuous stationary gripper 706, clarifying the structural characteristics and functional differences.

[0020] like Figure 1 As shown, in some other embodiments of this utility model, a plurality of clearance grooves 705 are arranged at equal intervals on the stationary gripper 7, and the arrangement direction of a plurality of linear drive cylinders 1 is parallel to the length direction of the gripping groove 8.

[0021] The beneficial effects of adopting the above technical solution are: the clearance grooves 705 are arranged at equal intervals on the stationary gripper 7, and the linear drive cylinders 1 are arranged parallel to each other along the length direction of the clamping groove 8, so that the clamping force is evenly distributed along the length direction of the workpiece, improving the stability and consistency of clamping. In other words, each moving gripper 6 corresponds to clamping one workpiece, so many workpieces can be clamped at once.

[0022] In some other embodiments of this utility model, the top of the movable gripper 6 has a first positive corner 601, and the lower part of the first positive corner 601 has a first negative corner 602. The top of the stationary gripper 7 has a second positive corner 701, and the lower part of the second positive corner 701 has a second negative corner 702. The angles of the first positive corner 601 and the second positive corner 701 are equal, and the angles of the first negative corner 602 and the second negative corner 702 are equal.

[0023] In addition, the first positive corner edge 601 and the first negative corner edge 602 are equivalent to interior angles with equal angles. Similarly, the second positive corner edge 701 and the second negative corner edge 702 are also equivalent to interior angles with equal angles.

[0024] The beneficial effects of adopting the above technical solution are as follows: the first positive corner edge 601 and the first negative corner edge 602 at the top of the moving jaw 6, and the second positive corner edge 701 and the second negative corner edge 702 at the top of the stationary jaw 7, each have corresponding equal angles, so that the shapes of the contact parts between the moving and stationary jaws and the workpiece match each other, enhancing the adaptability and reliability of clamping. This forms a hook-shaped clamping mechanism.

[0025] like Figure 5 As shown, in some other embodiments of the present invention, the wedge block 4 has T-shaped blocks 402 extending obliquely on both sides, and the movable gripper 6 is movably assembled with the T-shaped blocks 402 through the T-shaped groove 501.

[0026] The two T-shaped blocks 402 of the wedge block 4 itself extend in mirror symmetry. The cross-sectional profiles of the T-shaped block 402 and the T-shaped groove 501 are both T-shaped.

[0027] The beneficial effects of adopting the above technical solution are: the T-shaped blocks 402 extending obliquely on both sides of the wedge block 4 cooperate with the T-shaped grooves 501 on the moving jaw 6, which is a stable and reliable sliding guide method, effectively converting the linear motion of the wedge block 4 into the vertical motion of the moving jaw 6.

[0028] In some other embodiments of this utility model, a transition block 5 is provided between the wedge block 4 and the movable jaw 6, and a T-shaped groove 501 is recessed in the surface of the transition block 5. The movable jaw 6 and the transition block 5 are assembled by fasteners.

[0029] The beneficial effects of adopting the above technical solution are: a transition block 5 with a T-groove 501 is set between the wedge block 4 and the moving jaw 6, and the moving jaw 6 is assembled on the transition block 5 by fasteners, making the installation, debugging and replacement of the moving jaw 6 more convenient and quick.

[0030] In some other embodiments of this utility model, the cylinder body of the linear drive cylinder 1 is fixed to the lower surface of the base plate, the wedge block 4 has a stepped hole 401 in the middle, and one end of the output rod 2 of the linear drive cylinder 1 is coaxially fixed with a bolt 3, which passes through the stepped hole 401 and is fixed.

[0031] The beneficial effects of adopting the above technical solution are: the cylinder body of the linear drive cylinder 1 is fixed below the base plate, and the bolt 3 that is coaxially fixed at the end of its output rod 2 passes through the stepped hole 401 in the middle of the wedge block 4 and is tightened, providing a simple, stable and easy-to-assemble drive connection structure.

[0032] like Figure 2 As shown, in some other embodiments of this utility model, the closer the wedge block 4 is to the linear drive cylinder 1, the more the movable grippers 6 on both sides of the wedge block 4 move to the sides.

[0033] In addition, the output rod 2 of the linear drive cylinder 1 has two extreme positions. When it is in one extreme position, the moving pawl 6 is recessed on the surface of the intermittent stationary pawl 707. When it is in the other extreme position, the moving pawl 6 protrudes from the surface of the intermittent stationary pawl 707.

[0034] The beneficial effects of adopting the above technical solution are: it clarifies the basic motion law of the moving jaws 6 assembled on both sides of the wedge block 4 moving outward when it approaches the linear drive cylinder 1, and intuitively describes the realization principle of the clamping action.

[0035] Figure 4 This is equivalent to using only one unit as an example. Figure 5 That is in Figure 4 On top of that, a linear drive cylinder 1 is hidden.

[0036] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A movable and stationary jaw jig, characterized by, include: A static gripper is formed at the junction of a base plate with an upper top surface and a lower top surface. The movable gripper is movably assembled with the base plate; A linear drive cylinder, wherein the output rod of the linear drive cylinder is movably assembled with a moving jaw via a wedge block, and the wedge block utilizes the component force generated by its own inclined surface to make the movement direction of the moving jaw perpendicular to the movement direction of the output rod; The base plate surface includes four parallel stationary grippers, with two adjacent stationary grippers arranged in a mirror-symmetric manner, and a recessed clamping groove formed between the two adjacent stationary grippers arranged in a mirror-symmetric manner. The two middle stationary grippers of the four stationary grippers are movably equipped with several movable grippers, and the output rod of each linear drive cylinder is mirror-symmetrically equipped with two movable grippers.

2. The dynamic static clamp jaw fixture of claim 1, wherein: The base plate has several through clearance grooves, and the movable gripper has a moving space in the clearance grooves. The moving direction of the movable gripper is perpendicular to the length direction of the gripping groove. A stationary gripper with a clearance groove is an intermittent stationary gripper, while a stationary gripper without a clearance groove is a continuous stationary gripper.

3. The dynamic static clamp jaw fixture of claim 1, wherein: Several clearance slots are arranged at equal intervals on the stationary gripper, and the arrangement direction of several linear drive cylinders is parallel to the length direction of the gripping slot.

4. The dynamic static clamp jaw fixture of claim 1, wherein: The top of the movable gripper has a first positive corner edge, and the bottom of the first positive corner edge has a first negative corner edge; the top of the stationary gripper has a second positive corner edge, and the bottom of the second positive corner edge has a second negative corner edge. The first positive corner edge and the second positive corner edge each have equal angles, and the first negative corner edge and the second negative corner edge each have equal angles.

5. The dynamic static clamp jaw tooling of claim 1, wherein: The wedge-shaped block has T-shaped blocks extending obliquely on both sides, and the movable jaw is movably assembled with the T-shaped blocks through the T-shaped groove.

6. The dynamic static clamp jaw fixture of claim 5, wherein: A transition block is provided between the wedge block and the moving jaw, the T-shaped groove is recessed in the surface of the transition block, and the moving jaw and the transition block are assembled by fasteners.

7. The dynamic static clamp jaw tooling of claim 1, wherein: The cylinder body of the linear drive cylinder is fixed to the lower surface of the base plate. The wedge block has a stepped hole in the middle. One end of the output rod of the linear drive cylinder is coaxially fixed with a bolt, which passes through the stepped hole and is fixed.

8. The dynamic static clamp jaw tooling of claim 1, wherein: The closer the wedge block is to the linear drive cylinder, the more the movable grippers on both sides of the wedge block move to the sides.

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