Composite clamping device

Abstract

The utility model relates to a combined clamping device. According to an existing jig tool, diameter trepanning positioning is adopted, a product is clamped on the side edge through a profiling sliding block, only the side edge clamping action exists, and clamping stability is difficult to keep. The automatic positioning and clamping device comprises a main body bottom plate and a positioning datum plate, a plurality of reset driving mechanisms are arranged on the main body bottom plate, each reset driving mechanism is provided with an automatic positioning and clamping mechanism, each automatic positioning and clamping mechanism comprises an elastic clamping sleeve arranged in a conical sliding sleeve in a sleeved mode, and the conical sliding sleeves are arranged in guide sleeve holes of the positioning datum plate. The elastic clamping sleeve is driven by a reset driving mechanism to move up and down so that the elastic clamping sleeve can be opened and reset. The special-shaped product can be rapidly positioned, stable clamping is ensured, and the special-shaped product clamping device is suitable for being used under the condition that the requirement for positioning precision is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of positioning and clamping of special-shaped products, and in particular relates to a composite clamping device. Background Art

[0002] A type of turbocharger blade requires end-face grinding, with a parallelism tolerance of within 0.01mm. Current fixtures use diameter-opening positioning and contoured sliders to clamp the product from the side. This clamping action only provides side clamping. To ensure a tight fit on the bottom, the clamped product must be struck to align its bottom with the fixture surface. However, this action can result in poor appearance for some products. We have also verified that applying Z-direction force to the product and then clamping it laterally ensures that the product can be easily placed in the fixture. However, the gap left can cause some products to tilt, resulting in dimensional defects. Therefore, there is an urgent need for a clamping mechanism that can securely clamp the product and align the product reference surface with the fixture reference surface, thereby improving its yield. Utility Model Content

[0003] In response to the problems existing in the prior art, the utility model provides a composite clamping device that can achieve rapid positioning of special-shaped products, ensure stable clamping, and is suitable for use under conditions requiring high positioning accuracy.

[0004] The utility model adopts the following technical solution: a composite clamping device, including a main body base plate and a positioning reference plate, characterized in that a plurality of reset drive mechanisms are arranged on the main body base plate, and an automatic positioning clamping mechanism is arranged on each reset drive mechanism, and the automatic positioning clamping mechanism includes an elastic sleeve sleeved in a conical sleeve, and the conical sleeve is arranged in a guide sleeve hole of the positioning reference plate, and the elastic sleeve is driven by the reset drive mechanism to move up and down to realize the opening and resetting of the elastic sleeve.

[0005] Preferably, the elastic jacket includes multiple outer walls formed on its main body, all of which enclose a clamping groove for clamping the product in the center, and spacer grooves are formed between adjacent outer walls.

[0006] Preferably, the elastic sleeve is connected to the contour screw, the bottom of the contour screw is connected to the reset drive mechanism, and a rectangular spring is provided between the contour screw and the bottom plane of the conical sleeve.

[0007] Preferably, a return spring is provided on the outside of the tapered sliding sleeve, and the upper end of the return spring abuts against the step surface in the guide sleeve hole.

[0008] Preferably, the reset drive mechanism is a reset cylinder, and a plurality of reset cylinders are arranged side by side on the main body bottom plate.

[0009] Preferably, fixed blocks of equal height are provided between the tops of both sides of the reset cylinder and the positioning reference plate.

[0010] Preferably, equal-height support plates are provided at both ends between the main body bottom plate and the positioning reference plate.

[0011] The utility model uses the spring force to cooperate with the clamping sleeve to achieve automatic centering and clamping, and the beneficial effects are as follows:

[0012] 1. The size of the elastic force between the springs is used to make the action steps clear. The spring with greater force moves first to clamp the product, and then the spring with smaller force applies force to make it move axially again, so that the product is close to the reference surface. When resetting, the spring with smaller force moves first, and only when it reaches the limit position does it start to compress the spring with greater force. This structure is simple and ingenious linkage, which ensures that each product can complete its positioning and clamping actions independently, thereby ensuring the stable positioning and clamping of each product.

[0013] 2. The compact clamping mechanism increases the number of product layouts and directly improves the machine's utilization rate.

[0014] 3. Through the control of electrical auxiliary components, it can be combined with a robot to load and unload materials, thereby realizing automated production, reducing labor costs, lowering manufacturing costs, and improving product competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 This is a schematic diagram of the exploded structure of the present invention.

[0017] Figure 3 This is a schematic diagram of the automatic positioning and clamping mechanism of the present utility model.

[0018] In the figure: 1, product 2, positioning reference plate 3, elastic sleeve 4, tapered sleeve 5, reset spring 6, rectangular spring 7, contour screw 8, reset push block 9, contour support plate 10, contour fixing block 11, reset cylinder 12, main body bottom plate 13, clamping groove 14, outer wall 15, spacing groove. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to specific embodiments.

[0020] like Figure 1-Figure 3A composite clamping device shown includes a main body base plate 12 and a positioning reference plate 2. A plurality of reset drive mechanisms are provided on the main body base plate 12. Each reset drive mechanism is provided with an automatic positioning clamping mechanism. The automatic positioning clamping mechanism includes an elastic sleeve 3 sleeved in a conical sleeve 4. The conical sleeve 4 is provided in a guide sleeve hole of the positioning reference plate 2. The elastic sleeve 3 is driven by the reset drive mechanism to move up and down to realize the opening and resetting of the elastic sleeve 3.

[0021] In one embodiment, the elastic jacket includes multiple outer walls 14 formed on its body. These walls enclose a central groove 13 for holding the product, with adjacent walls forming spacing grooves 15. As the elastic jacket moves up and down within the conical sleeve, the outer walls of the jacket expand or contract due to the changes in the space within the conical sleeve, allowing the robot to place the product into the jacket.

[0022] Specifically, the elastic sleeve 3 is connected to the contour screw 7 , the bottom of the contour screw 7 is connected to the reset drive mechanism, and a rectangular spring 6 is provided between the contour screw 7 and the bottom plane of the conical sliding sleeve 4 .

[0023] Specifically, a return spring 5 is disposed on the exterior of the tapered sleeve 4, the upper end of which abuts against the stepped surface within the guide sleeve bore. A rectangular spring 6 has a greater elastic force than the return spring 5. The magnitude of the elastic force between the springs allows for distinct action steps: the spring with greater force actuates first, clamping the product, and then the spring with less force applies force to cause axial retraction, bringing the product into contact with the reference surface. During resetting, the spring with less force actuates first, and only begins to compress the spring with greater force when it reaches the limit position. This simple yet ingenious linkage ensures that each product can be independently positioned.

[0024] Specifically, the reset drive mechanism is a reset cylinder 11, and a plurality of reset cylinders are arranged side by side on the main body bottom plate 12. The reset cylinder 11 is connected to a reset push block 8, and the reset push block is connected to the equal height screw 7.

[0025] Specifically, fixed blocks 10 of equal height are provided between the tops of both sides of the reset cylinder 11 and the positioning reference plate.

[0026] Specifically, equal-height support plates 9 are provided at both ends between the main body bottom plate 12 and the positioning reference plate 2. The equal-height support plates 9 and the equal-height fixing blocks 10 form an integral enclosure and support for the positioning reference plate.

[0027] The working process of this utility model is as follows:

[0028] The reset cylinder 11 drives the reset push block 8 to push the contour screw 7 upward, so that the rectangular spring 6, the conical sleeve 4, and the elastic sleeve 3 move upward along the guide sleeve hole on the positioning reference plate 2. At the same time, the reset spring 5 is compressed. When the limit step on the conical sleeve 4 contacts the plane on the positioning reference plate 2, the rectangular spring 6 begins to compress, and the elastic sleeve 3 connected with the contour screw 7 continues to move upward. When the limit step of the contour screw contacts the plane of the conical sleeve 4, the upward movement stops, and the elastic sleeve 3 pops open.

[0029] Next, the robot places the product into the elastic sleeve 3, the reset cylinder 11 drives the reset push block 8 to retract, and the rectangular spring 6 applies force to push the contour screw 7, so that the elastic sleeve 3 moves downward in the conical sleeve 4. Since the elastic sleeve 3 and the conical sleeve 4 are provided with a conical surface, the elastic sleeve 3 will shrink and clamp the product 1 while moving downward. At this time, the rectangular spring 6 also stops moving, and then the reset spring 5 starts to apply force to drive the elastic sleeve 3, conical sleeve 4, rectangular spring 6, contour screw 7 and product 1 to move downward until the reference plane of the product 1 is in close contact with the plane of the positioning reference plate 2, thereby completing the positioning and clamping of the product.

[0030] The utility model is suitable for clamping all products with similar structures, and can be combined for processing, or used alone in a robot for handling, transplanting, and assembly. The utility model enables product positioning and clamping to be stable, with efficient action rhythm, thereby improving machine utilization and reducing manufacturing costs.

[0031] It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the contents of the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of this application.

Claims

1. A composite clamping device, comprising a main body bottom plate (12) and a positioning reference plate (2), characterized in that A plurality of reset drive mechanisms are provided on the main body bottom plate (12), and an automatic positioning clamping mechanism is provided on each reset drive mechanism. The automatic positioning clamping mechanism comprises an elastic sleeve (3) sleeved in a conical sleeve (4), and the conical sleeve (4) is provided in a guide sleeve hole of the positioning reference plate (2). The elastic sleeve (3) is driven by the reset drive mechanism to move up and down to realize the opening and resetting of the elastic sleeve (3).

2. A composite clamping device according to claim 1, characterized in that The elastic jacket comprises a plurality of outer walls (14) formed on its main body, all of which enclose a clamping groove (13) for clamping the product at the center, and spacer grooves (15) are formed between adjacent outer walls.

3. A composite clamping device according to claim 2, characterized in that The elastic sleeve (3) is connected to the contour screw (7), the bottom of the contour screw (7) is connected to the reset drive mechanism, and a rectangular spring (6) is provided between the contour screw (7) and the bottom plane of the conical sleeve (4).

4. A composite clamping device according to any one of claims 1 to 3, characterized in that A return spring (5) is provided outside the tapered sliding sleeve (4), and the upper end of the return spring (5) abuts against the step surface in the guide sleeve hole.

5. A composite clamping device according to claim 4, characterized in that The reset drive mechanism is a reset cylinder (11), and a plurality of reset cylinders are arranged side by side on the main body bottom plate (12).

6. A composite clamping device according to claim 5, characterized in that Equal-height fixing blocks (10) are provided between the tops of both sides of the reset cylinder (11) and the positioning reference plate.

7. A composite clamping device according to claim 1, characterized in that Equal-height support plates (9) are provided at both ends between the main body bottom plate (12) and the positioning reference plate (2).

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