Feeding tool mechanism capable of preventing workpieces from being scratched

Abstract

The utility model relates to the technical field of workpiece clamping and feeding, in particular to a feeding tool mechanism capable of preventing workpieces from being scratched, which comprises a base, a first bearing component, a second bearing component, a first telescopic cylinder and a second telescopic cylinder. The first bearing assembly comprises a first bearing seat, first bottom surface rollers and first side surface rollers, the first bearing seat is of a concave structure, the first bottom surface rollers are transversely arranged on the bottom surface of the concave surface, and the two first side surface rollers are vertically arranged on the vertical surface of the concave surface respectively; the limiting assembly is arranged on the first bearing assembly; the second bearing assembly is arranged on the side close to the second telescopic air cylinder, an arc-shaped groove is formed in the second bearing assembly, a second bottom face rolling wheel is transversely arranged at the bottom of the concave face of the arc-shaped groove, and second side face rolling wheels are vertically arranged at the highest points of the two sides of the concave face of the arc-shaped groove correspondingly. And the rotation directions of the bottom rollers and the side rollers are consistent with the movement direction of the workpiece.

Description

Technical Field

[0001] This utility model relates to the field of workpiece clamping and feeding technology, specifically a feeding fixture mechanism to prevent workpiece scratches. Background Technology

[0002] In the fields of machining and automated production, workpieces are typically positioned using the combined action of a drive mechanism and a clamping device during the feeding and clamping processes. However, due to instantaneous impacts or directional deviations in the thrust output by the drive unit or the clamping force applied by the clamping unit, the workpiece is prone to unexpected slight displacements during its movement. This displacement causes relative sliding between the workpiece and the contact surface of the support device (such as a guide rail, pallet, or positioning base), resulting in sliding friction.

[0003] The direct consequence of sliding friction is the formation of scratches, abrasions, or abrasive wear on the workpiece surface. Especially in precision machining or high-gloss finish requirements, such defects can directly cause the surface roughness of the workpiece to exceed the customer's technical specifications, leading to the scrapping of the workpiece.

[0004] In the prior art, methods such as lubricant coating, contact surface polishing, or reducing clamping force are usually used to alleviate this problem, but there are the following limitations: lubricant may contaminate the workpiece or processing environment; surface polishing can only delay but not eliminate friction damage; and reducing clamping force can easily lead to a decrease in positioning accuracy or processing vibration.

[0005] Therefore, there is an urgent need for a feeding fixture mechanism that does not rely on external media and can balance clamping stability and surface protection, so as to actively suppress sliding friction between the workpiece and the support device through structural optimization, thereby reducing the scrap rate and improving the processing quality. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a feeding fixture mechanism to prevent workpiece scratches, so as to reduce the scratches generated on the workpiece during feeding and clamping.

[0007] To achieve the above objectives, a feeding fixture mechanism for preventing workpiece scratches is designed, including a base, a first support assembly, a second support assembly, a first telescopic cylinder, and a second telescopic cylinder. The first and second telescopic cylinders are respectively disposed on opposite sides of the base. The telescopic end of the first telescopic cylinder has a grooved top, and the telescopic end of the second telescopic cylinder also has a top. The first support assembly is disposed near the first telescopic cylinder and includes a first support seat, a first bottom roller, and two first side rollers. The first support seat has a concave structure. The first bottom roller is horizontally disposed on the bottom surface of the concave surface, and the two first side rollers are vertically disposed on the vertical surface of the concave surface. The outer ring of the first side roller protrudes from the concave surface to mate with the end of the workpiece. The first bottom roller supports the end of the workpiece, and the rotation direction of the first bottom roller and the first side roller is consistent with the movement direction of the workpiece. The limiting component is set on the first support component and forms an enclosure with the first support seat of the first support component to limit the workpiece. The second support component is set on the side near the second telescopic cylinder. The second support component is provided with an arc-shaped groove. A second bottom roller is horizontally arranged at the bottom of the concave surface of the arc-shaped groove. A second side roller is vertically arranged at the highest point on both sides of the concave surface of the arc-shaped groove. The outer ring of the second side roller protrudes from the concave surface to cooperate with the end of the workpiece. The second bottom roller supports the end of the workpiece, and the rotation direction of the second bottom roller and the second side roller is consistent with the movement direction of the workpiece.

[0008] Preferably, the present invention further includes: the recessed vertical surface of the first support seat and the top of the second support component are provided with an open structure, and T-shaped screws are threaded into the inner rings of the first side roller and the second side roller for fixing to the first support seat and the second support component respectively.

[0009] Preferably, the present invention further includes: the limiting component comprising: an opening and closing arm hinged to the base in the middle; a workpiece limiting block disposed at one end of the opening and closing arm, the workpiece limiting block having an arc-shaped groove on the side near the workpiece, the limiting block and the first support seat of the first supporting component forming an enclosure to limit the workpiece; a limiting cylinder disposed at the other end of the opening and closing arm, the telescopic rod of the limiting cylinder being kinetically connected to the opening and closing arm; the opening and closing arm swinging in an arc around the hinge under the push of the limiting cylinder.

[0010] Preferably, the present invention further includes: a top head provided on the side of the second cylinder facing the workpiece, the top head being coaxially arranged with the workpiece, and the top head being disposed on the telescopic end of the second cylinder.

[0011] Preferably, the present invention further includes: a guide component on the base, the guide component being disposed between the second support component and the second cylinder, the guide component having a guide groove conforming to the shape of the pusher, the guide groove being coaxially disposed with the workpiece, the guide groove being used to accommodate the pusher and slidingly engage with the pusher.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] By optimizing the structure, sliding friction between the workpiece and the support device is actively suppressed, thereby reducing the scrap rate and improving processing quality. The rollers make dynamic contact with the workpiece, reducing sliding friction; the limiting component achieves precise positioning through an arc-shaped closed structure; and the guiding component ensures the stability of the feeding process. Attached Figure Description

[0014] Figure 1 This is an isometric view of the present invention;

[0015] Figure 2 This is a top view of the present invention;

[0016] Figure 3 This is a front view of the present invention;

[0017] Figure 4 ,yes Figure 3 Sectional view of plane AA;

[0018] Figure 5 ,yes Figure 3 Sectional view of the middle BB surface;

[0019] In the figure: 1 First cylinder, 1.1 Grooved top head, 2 First support seat, 2.1 Bottom surface of the recessed surface; 2.2 Vertical surface of the recessed surface, 3 Second support assembly, 3.1 Arc groove, 4 Second cylinder, 4.1 Top head, 5 First bottom roller, 5.1 Second bottom roller, 6 First side roller, 6.1 Second side roller, 7 Workpiece, 8 Limiting block, 8.1 Opening and closing arm, 8.2 Limiting cylinder, 9 Guide assembly, 9.1 Guide groove, 10 Base, 11 Hinge point. Detailed Implementation

[0020] To make the purpose, principle and structure of this utility model clearer, the following description is provided in conjunction with the accompanying drawings and specific embodiments.

[0021] like Figures 1 to 5As shown, this utility model provides a feeding fixture mechanism to prevent workpiece scratches, including a base 10, a first support component, a second support component 3, a first telescopic cylinder 1, and a second telescopic cylinder 4. The base 10 serves as the main support, and the first telescopic cylinder 1 and the second telescopic cylinder 4 are symmetrically installed on both sides of the base 10. A first support component is located between the first telescopic cylinder 1 and the second telescopic cylinder 4, near the first telescopic cylinder 1, and a second support component 3 is located between the first telescopic cylinder 1 and the second telescopic cylinder 4, near the second telescopic cylinder 4. Both ends of the workpiece 7 cooperate with the first support component and the second support component 3, respectively. The telescopic end of the first telescopic cylinder 1 has a grooved top head 1.1, and the telescopic end of the second telescopic cylinder 4 has a top head 4.1, and the top head 4.1 is coaxially arranged with the workpiece 7. The first support component is located near the first telescopic cylinder 1, and the second support component 3 is located near the second telescopic cylinder 4; the two are symmetrically distributed to collaboratively support the workpiece 7.

[0022] The first support assembly includes a first support base 2, a first bottom roller 5, and two first side rollers 6. The first support base 2 is a concave structure mounted on a base 10. The first bottom roller 5 is horizontally mounted on its concave bottom surface 2.1, and the two first side rollers 6 are symmetrically mounted on its concave vertical surface 2.2. The outer ring of the first side roller 6 protrudes from the concave vertical surface 2.2 and is used to contact the end of the workpiece 7. The first bottom roller 5 supports the bottom of the end of the workpiece 7. The rotation axes of the first bottom roller 5 and the first side roller 6 are perpendicular to the central axis of the workpiece 7, so that the rotation direction of the first bottom roller 5 and the first side roller 6 is consistent with the movement direction of the workpiece 7, thereby reducing friction.

[0023] Preferably, the inner ring of the first side roller 6 is fixed to the first support 2 by a T-shaped screw, which facilitates installation and adjustment.

[0024] A limiting assembly is mounted on the first support assembly and includes an opening / closing arm 8.1, a workpiece limiting block 8, and a limiting cylinder 8.2. The opening / closing arm 8.1 is hinged to the base 10 at its middle, with the workpiece limiting block 8 fixed at one end and the telescopic rod of the limiting cylinder 8.2 connected at the other end. The workpiece limiting block 8 has an arc-shaped groove on the side near the workpiece 7, forming an enclosing structure with the first support 2 to restrict the horizontal displacement of the workpiece 7. When the limiting cylinder 8.2 drives the opening / closing arm 8.1 to swing around the hinge point 11, the limiting block 8 can quickly open and close with the first support assembly, facilitating the loading and unloading of the workpiece 7.

[0025] The second support assembly 3 has an arc-shaped groove 3.1 at its top. A second bottom roller 5.1 is horizontally arranged at the bottom of the concave surface of the arc-shaped groove 3.1, and second side rollers 6.1 are vertically installed at the highest points on both sides of the arc-shaped groove 3.1. The second bottom roller 5.1 supports the bottom of the end of the workpiece 7, and the outer ring of the second side roller 6.1 protrudes from the concave surface of the arc-shaped groove 3.1 and contacts the end of the workpiece 7. The rotation direction of the second bottom roller 5.1 and the second side roller 6.1 is consistent with the movement direction of the workpiece 7, and the rotation axis of the second bottom roller 5.1 and the second side roller 6.1 intersects perpendicularly with the central axis of the workpiece 7.

[0026] Preferably, the second side roller 6.1 is fixed to the second support assembly 3 by a T-screw to ensure that the position of the roller is adjustable.

[0027] A guide assembly 9 is provided on the base 10, located between the second support assembly 3 and the second telescopic cylinder 4. The guide assembly 9 has a guide groove 9.1 that conforms to the shape of the top head 4.1. The guide groove 9.1 is coaxially arranged with the workpiece 7 to accommodate the top head 4.1 and slide with it. When the second telescopic cylinder 4 pushes the top head 4.1, the guide groove 9.1 constrains the movement trajectory of the top head 4.1 to prevent the workpiece 7 from deviating.

[0028] Work process

[0029] Workpiece placement: The limiting cylinder 8.2 drives the opening and closing arm 8.1 to open, and the two ends of the workpiece 7 cooperate with the tooling mechanism of this utility model, and are positioned by the rollers of the first support component and the second support component 3.

[0030] Clamping and limiting: The limiting cylinder 8.2 retracts, and the limiting block 8 and the first support seat 2 surround and fix the workpiece 7.

[0031] Feeding drive: The first telescopic cylinder 1 and the second telescopic cylinder 4 operate synchronously, and the mandrel 1.1 and mandrel 4.1 push the workpiece 7 to move along the roller direction. The guide groove 9.1 ensures the linear movement of the mandrel 4.1.

[0032] Reset: After workpiece 7 is in position, the cylinder resets, the limit assembly opens, and the cycle is completed.

[0033] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and novel concept of this utility model, should be included within the protection scope of this utility model.

Claims

1. A feeding fixture mechanism for preventing workpiece scratches, comprising a base, a first support assembly, a second support assembly, a first telescopic cylinder, and a second telescopic cylinder, wherein the first telescopic cylinder and the second telescopic cylinder are respectively disposed on both sides of the base, the telescopic end of the first telescopic cylinder is provided with a grooved top head, and the telescopic end of the second telescopic cylinder is provided with a top head, characterized in that, The first support assembly is disposed near the first telescopic cylinder, and the first support assembly includes: a first support base, a first bottom roller, and a first side roller. The first support is a concave structure. The first bottom roller is horizontally arranged on the bottom surface of the concave surface, and the two first side rollers are vertically arranged on the vertical surface of the concave surface. The outer ring of the first side roller protrudes from the concave surface to cooperate with the end of the workpiece. The first bottom roller is used to support the end of the workpiece. The rotation direction of the first bottom roller and the first side roller is consistent with the movement direction of the workpiece. The limiting component is set on the first support component and forms an enclosure with the first support seat of the first support component to limit the workpiece; The second support assembly is located near the second telescopic cylinder. The second support assembly has an arc-shaped groove. A second bottom roller is horizontally arranged at the bottom of the concave surface of the arc-shaped groove. A second side roller is vertically arranged at the highest point on both sides of the concave surface of the arc-shaped groove. The outer ring of the second side roller protrudes from the concave surface to cooperate with the end of the workpiece. The second bottom roller is used to support the end of the workpiece. The rotation direction of the second bottom roller and the second side roller is consistent with the movement direction of the workpiece.

2. The feeding fixture mechanism for preventing workpiece scratches as described in claim 1, characterized in that, The recessed vertical surface of the first support seat and the top of the second support assembly are provided with an open structure. T-shaped screws are threaded into the inner rings of the first side roller and the second side roller for fixing to the first support seat and the second support assembly respectively.

3. The feeding fixture mechanism for preventing workpiece scratches as described in claim 1, characterized in that, The limiting component includes: The hinged arm in the middle is connected to the base; A workpiece limiting block is provided at one end of the opening and closing arm. The workpiece limiting block has an arc-shaped groove on the side near the workpiece. The limiting block and the first support seat of the first support assembly form an enclosure to limit the workpiece. A limiting cylinder is located at the other end of the opening and closing arm, and the extension rod of the limiting cylinder is connected to the opening and closing arm in a transmission manner. The opening and closing arm swings in an arc around the hinge under the push of the limiting cylinder.

4. The feeding fixture mechanism for preventing workpiece scratches as described in claim 1, characterized in that, The second cylinder has a pusher head facing the workpiece. The pusher head is coaxially arranged with the workpiece and is located on the extension end of the second cylinder.

5. The feeding fixture mechanism for preventing workpiece scratches as described in claim 4, characterized in that, A guide assembly is also provided on the base. The guide assembly is located between the second support assembly and the second cylinder. The guide assembly has a guide groove that conforms to the shape of the pusher. The guide groove is coaxially arranged with the workpiece and is used to accommodate the pusher and slide with the pusher.

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