Hole-supporting type three-jaw flat-opening clamping jaw structure and grabbing equipment

Abstract

The utility model provides a hole supporting type three-jaw flat opening clamping jaw structure and grabbing equipment, and relates to the technical field of grabbing equipment. Comprising a driving device, at least three clamping blocks which are evenly distributed around the circumference and provided with clamping jaws are arranged at one end of the driving device, and the three clamping jaws are suitable for being spliced together to stretch into a hole of a workpiece to be clamped when a side-hung air cylinder controls the clamping blocks to be gathered. And when the driving device controls the clamping blocks to be dispersed, the clamping blocks are tightly supported on the holes of the workpieces so as to grab the workpieces. According to the scheme, the grabbing efficiency of the blade with the round hole can be improved, damage to the blade is reduced, and meanwhile the grabbing stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grasping equipment, in particular to a support hole type three-claw flat open clamping claw structure and grasping equipment. Background Art

[0002] During the production and processing of blades, when the sintered blades undergo subsequent processing, such as grinding or coating, the blades need to be moved and placed in the designated processing fixture. After the blades are processed, they also need to be taken out and placed in the finished product tray. At present, most companies use material chucks with low success rates and product skewness, resulting in low equipment efficiency; especially for blades with center holes, if they are clamped from the outside of the blade, it is easy to damage the blade, and it is easy to make the blade not be placed in place when placed. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a hole-supporting three-jaw flat-open clamping jaw structure to solve the problem that the blade is easily damaged when grasping a blade with a center hole.

[0004] The utility model adopts the following scheme: the application provides a hole-supporting three-jaw horizontal opening clamp structure, including: a driving device, one end of which is provided with at least three clamping blocks with clamping jaws evenly distributed around a circumference, the three clamping jaws are suitable for being pieced together when the horizontal opening cylinder controls the clamping blocks to aggregate so as to be used to extend into the hole of the workpiece to be clamped, and when the driving device controls the clamping blocks to disperse, they are tightened on the hole of the workpiece to achieve the grasping of the workpiece.

[0005] Furthermore, a boss is provided at the end of each of the clamping jaws so that the boss contacts the hole of the workpiece first after the clamping jaws are opened.

[0006] Furthermore, the cross-sections of the three clamping jaws are fan-shaped and are suitable for being assembled into a circular cross-section after the clamping blocks are assembled, and the bosses are surrounded by a circle.

[0007] Furthermore, the other end of the driving device is connected to a rotating device via a quick-connect structure.

[0008] Furthermore, the driving device is connected to the rotating device through a connecting piece; the quick-connect structure includes a conical table arranged on the rotating device and a conical groove arranged at the end of the connecting piece and suitable for matching with the conical table, and a quick-change nut is provided on the connecting piece for connecting the connecting piece and the rotating device.

[0009] Furthermore, the driving device is a cylinder device.

[0010] The utility model also provides a grasping device, comprising the above-mentioned hole-supporting type three-claw flat-open clamping jaw structure.

[0011] Beneficial effects:

[0012] This solution sets the convergence and dispersion of the three jaws, which can be stretched out from the center hole of the blade and pressed against the inner wall of the hole to achieve the top grip of the blade, thereby reducing damage to the blade. By setting a boss structure on the jaws, it is ensured that the end boss contacts the inside of the center hole of the blade first after the jaws are stretched out. In this way, even if the blade slides during movement, the jaws can always ensure contact with the inside of the center hole of the blade. Compared with the existing chucks in the industry, the clamping is more stable and the blade is not skewed. Furthermore, the chuck is fixed by locking the conical positioning nut to achieve rapid replacement of the chuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural schematic diagram of a hole-supporting three-jaw flat-open clamping jaw structure according to an embodiment of the utility model;

[0014] Figure 2 This is a schematic diagram of the exploded structure of a hole-supporting three-jaw flat-open clamping jaw structure according to an embodiment of the utility model;

[0015] Figure 3 It is a structural schematic diagram of another perspective of a hole-supporting three-jaw flat-open clamping jaw structure according to an embodiment of the utility model;

[0016] Figure 4 It is a partial enlarged schematic diagram of a clamping jaw of a hole-supporting three-jaw flat-open clamping jaw structure according to an embodiment of the utility model;

[0017] Figure numerals: driving device 1, clamping block 2, clamping claw 3, boss 31, rotating device 4, conical platform 5, connecting 6, conical groove 61, quick-change nut 7. DETAILED DESCRIPTION

[0018] Combination Figures 1 to 3 As shown, this embodiment provides a gripping device, including a hole-supporting three-jaw flat-opening clamping jaw structure. The hole-supporting three-jaw flat-opening clamping jaw 3 structure includes: a driving device 1, one end of which is provided with at least three clamping blocks 2 with clamping jaws 3 evenly distributed around the circumference, the three clamping jaws 3 are suitable for being assembled together when the flat-opening cylinder controls the clamping blocks 2 to gather so as to be inserted into the hole of the workpiece to be clamped, and when the driving device 1 controls the clamping blocks 2 to disperse, they are tightened on the hole of the workpiece to achieve the gripping of the workpiece.

[0019] In this embodiment, the driving device 1 can be a cylinder device, or a motor device, etc., and the cylinder device is used as an example for explanation. A plurality of slide grooves evenly distributed around the circumference are arranged at one end of the cylinder device, and a clamp block 2 is arranged in each of the slide grooves. The clamp block 2 can slide in the slide groove, and a clamping claw 3 can be connected to the clamp block 2 by bolts 6, and a plurality of the clamping claws 3 can be aggregated and dispersed following the movement of the clamp block 2. For example, a spring device can be arranged on the clamp block 2. The driving device 1 is used to drive the clamp block 2 to slide in the slide groove. For example, when the cylinder device is inhaled, the air pressure causes the clamp block 2 to move outward, so that the clamping claws 3 are separated from each other, and the spring device is stretched at this time; when the cylinder device stops inhaling air, the clamp block 2 automatically recovers under the elastic force of the spring device, so that the clamping claws 3 are aggregated and the clamping of the blade is cancelled. In this embodiment, the cross-section of the three clamping jaws 3 is fan-shaped, and is suitable for being assembled into a circular cross-section after the clamping block 2 is aggregated, so that the area after aggregation is small, which is convenient for entering the hole of the blade and matching the circular hole of the blade. In this way, it is possible to clamp from the center hole of the blade, which can effectively avoid damaging the outside of the blade. At the same time, positioning through the center hole of the blade also makes the placement position after clamping more accurate. Of course, it should be noted that the method of driving the clamping block 2 to slide can also be driven by a motor, etc., which is a prior art and will not be repeated.

[0020] Combination Figures 1 to 4 As shown, in another embodiment, a boss 31 is provided at the end of each of the clamping jaws 3 so that the boss 31 first contacts the hole of the workpiece after the clamping jaws 3 are opened. Here, the three bosses 31 are enclosed in a circular shape, which is convenient for entering the hole of the workpiece. This is because after the clamping jaws 3 are opened in parallel in the center hole of the blade, due to the force, the clamping jaws 3 will have a slight bending deformation, so that only the root of the clamping jaws 3 contacts the edge of the center hole of the blade, so that the blade is easy to fall off due to shaking or sliding during movement. In order to prevent this from happening, a boss 31 is added to the end of the clamping jaw 3 to ensure that the end boss 31 contacts the inside of the center hole of the blade first after the clamping jaws 3 are opened. In this way, even if the blade slides during the movement, the clamping jaw 3 can always ensure that it contacts the inside of the center hole of the blade. Compared with the existing chucks in the industry, its clamping is more stable and the blade is not skewed.

[0021] Combination Figures 1 to 3As shown, the other end of the driving device 1 is connected to the rotating device 4 through a quick connection structure. Specifically, the driving device 1 is connected to the rotating device 4 through a connection piece; the quick connection structure includes a conical platform 5 provided on the rotating device 4 and a conical groove 61 provided at the end of the connection piece and suitable for matching with the conical platform 5. The connection piece is provided with a quick-change nut 7 for connecting the connection piece and the rotating device 4. The chuck is quickly replaced by positioning the conical surface and locking the nut. Compared with the existing chucks in the industry, the replacement is more convenient and accurate.

[0022] Through the scheme of this embodiment, the efficiency of grasping the circular blade with the center hole is improved, the damage to the blade can be reduced, and the stability of grasping is improved.

[0023] It should be understood that the above are only preferred implementations of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions under the concept of the present utility model belong to the protection scope of the present utility model.

[0024] The above description of the drawings used in the implementation manner only shows certain embodiments of the utility model and should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

Claims

1. A hole-supporting three-jaw flat-open clamping jaw structure, characterized in that: include: A driving device, one end of which is provided with at least three clamping blocks with jaws evenly distributed around a circumference, the three clamping jaws being suitable for being assembled together when the clamping blocks are controlled by the horizontal cylinder to be assembled so as to be inserted into the hole of the workpiece to be clamped, and being supported on the hole of the workpiece to grasp the workpiece when the driving device controls the clamping blocks to be dispersed.

2. The hole-supporting three-jaw flat-open clamp structure according to claim 1 is characterized in that: A boss is arranged at the end of each clamping jaw so that the boss contacts the hole of the workpiece first after the clamping jaw is opened.

3. The hole-supporting three-jaw flat-open clamp structure according to claim 2 is characterized in that: The cross-sections of the three clamping jaws are fan-shaped and are suitable for being assembled into a circular cross-section after the clamping blocks are assembled, and the bosses are surrounded by a circle.

4. The hole-supporting three-jaw flat-open clamping jaw structure according to claim 1 is characterized in that: The other end of the driving device is connected with a rotating device through a quick connection structure.

5. The hole-supporting three-jaw flat-open clamp structure according to claim 4 is characterized in that: The driving device is connected to the rotating device through a connecting piece; the quick-connect structure includes a conical platform arranged on the rotating device and a conical groove arranged at the end of the connecting piece and suitable for matching with the conical platform, and a quick-change nut is arranged on the connecting piece for connecting the connecting piece and the rotating device.

6. The hole-supporting three-jaw flat-open clamp structure according to claim 1, characterized in that: The driving device is a cylinder device.

7. A gripping device, characterized in that: It comprises the hole-supporting three-jaw flat-open clamping jaw structure as described in any one of claims 1-6.

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