Annular blade cutting clamp

Abstract

The utility model discloses an annular blade cutting fixture, and particularly relates to the field of pneumatic fixtures, which comprises a bottom plate, a vacuum fixture main body fixedly mounted on the bottom plate, a vacuum adsorption fixture fixedly mounted on the vacuum fixture main body, a through passage arranged inside the vacuum adsorption fixture, and a vacuum air path arranged inside the vacuum fixture main body. The input end of the vacuum air path is connected with an air pipe connector, the end, away from the vacuum air path, of the air pipe connector communicates with a vacuum negative pressure source, a product positioning column is movably installed on the bottom plate in a penetrating mode, the product positioning column is movably arranged in the vacuum adsorption clamp, and the product positioning column can reciprocate in the direction perpendicular to the top face of the bottom plate; the clamp is high in product positioning precision, the product is fixed flatly without warping, and the requirement for the size of the offcut of the product is low; and on the other hand, the clamp is compact in size, simple and small in structure, low in machining cost, convenient to install, simple in remodeling and capable of being applied to high-precision cutting and positioning of the annular blade bottom waste.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic clamping technology, and more specifically, to a ring blade cutting clamp. Background Technology

[0002] The blade material of the special blade for the blade wheel cutting machine is made of powder alloy with added diamond particles. The blade material is a precious metal. In order to reduce costs, the edge material of the pressed blade is extremely narrow. It is necessary to cut off a circle of both the inner and outer diameters of the blade to ensure the standard size and concentricity of the inner and outer diameters. This achieves the purpose of saving blade raw materials and improving product yield.

[0003] Existing blade cutting involves first pressing a material much larger than the final product required, and then using a clamp to hold the outside of the material for cutting. However, since the blade part held by the clamp takes up a lot of the blade size, and the clamp must also avoid the laser cutting head, this solution requires the edge material of the blade to be about 6mm larger in order to hold the product for cutting.

[0004] Existing fixture solutions use a method of covering and pressing onto the blade to be cut, which leads to uneven stress on the blade material where the pressing pressure is applied compared to other areas. This results in blade warping and ultimately produces an elliptical blade, meaning a high scrap rate.

[0005] Furthermore, existing fixture solutions cannot accurately position the blade material, resulting in the cut blade ring not being in the exact center of the raw material, and the cut blades being of uneven thickness. Utility Model Content

[0006] The present invention provides a ring blade cutting fixture, which aims to solve the problem that the existing blade processing method of pressing together first results in more material being cut off from the blade (which is not conducive to saving blade raw materials) and a low yield of the final product.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a ring-shaped blade cutting fixture, comprising a base plate, a vacuum fixture body fixedly mounted on the base plate, a vacuum adsorption fixture fixedly mounted on the vacuum fixture body, a through passage provided inside the vacuum adsorption fixture, a vacuum air passage provided inside the vacuum fixture body, the output end of the vacuum air passage communicating with the input end of the through passage, the output end of the through passage extending to the top surface of the vacuum adsorption fixture for adsorbing the blade of the product, an air pipe connector connected to the input end of the vacuum air passage, the end of the air pipe connector away from the vacuum air passage communicating with a vacuum negative pressure source, a product positioning post movably mounted through the base plate, the product positioning post being movably disposed inside the vacuum adsorption fixture, and the product positioning post being coaxially arranged with the vacuum adsorption fixture, the product positioning post being able to reciprocate in a direction perpendicular to the top surface of the base plate.

[0008] In a preferred embodiment, the top of the product positioning post has a stepped structure, and the diameter of the stepped structure at the top of the product positioning post gradually increases from top to bottom.

[0009] In a preferred embodiment, a lifting cylinder fixing plate is fixedly installed on the bottom of the base plate, a cylinder is fixedly installed on the lifting cylinder fixing plate, the output end of the cylinder is connected to a positioning column fixing side plate, a positioning column fixing base plate is fixedly installed on the positioning column fixing side plate, and the positioning column fixing base plate is connected to the product positioning column.

[0010] In a preferred embodiment, a lifting cylinder reinforcing plate is fixedly installed on the side of the lifting cylinder fixing plate away from the cylinder, and the lifting cylinder reinforcing plate is also fixedly connected to the bottom of the base plate.

[0011] In a preferred embodiment, a positioning column reinforcing plate is fixedly installed on the side of the positioning column fixing plate away from the cylinder, and the positioning column reinforcing plate is also fixedly connected to the positioning column fixing base plate.

[0012] In a preferred embodiment, an inner ring waste cleaning rod is installed on the top of the product positioning post, and an inner ring waste cleaning plate is fixedly fitted on the inner ring waste cleaning rod. The diameter of the inner ring waste cleaning plate is smaller than the inner diameter of the product.

[0013] In a preferred embodiment, the top of the vacuum adsorption fixture has a plurality of adsorption holes distributed along the circumferential direction, and the adsorption holes are connected to the through channel.

[0014] In a preferred embodiment, a positioning post connector is fixedly installed on the top of the positioning post fixing base plate. The positioning post connector is fixedly connected to the product positioning post. A vacuum clamp accessory is installed between the vacuum clamp body and the positioning post connector. The vacuum clamp accessory is used to seal the vacuum air passage inside the vacuum clamp body.

[0015] The technical effects and advantages of this utility model are as follows: The clamp of this utility model has high product positioning accuracy, the product is fixed flat without warping, and the requirements for the size of the product edge material are low; on the other hand, the clamp has a compact size, simple and small structure, low processing cost, convenient installation, and simple changeover, and can be used for high-precision cutting and positioning of annular blade bottom waste. Attached Figure Description

[0016] Figure 1 This is a front view schematic diagram of the overall structure of this utility model when the cylinder is retracted.

[0017] Figure 2 This is a front view schematic diagram of the overall structure of this utility model when the cylinder is extended.

[0018] Figure 3 This is a top view of the overall structure of this utility model.

[0019] Figure 4 This utility model Figure 1 A cross-sectional view from the perspective of the middle AA.

[0020] Figure 5 This utility model Figure 2 Cross-sectional view from the perspective of the middle BB.

[0021] The attached figures are labeled as follows: 1. Base plate; 2. Vacuum clamp body; 3. Vacuum adsorption clamp; 4. Inner ring waste cleaning plate; 5. Inner ring waste cleaning rod; 6. Vacuum clamp accessories; 7. Product; 8. Air pipe connector; 9. Product positioning post; 10. Lifting cylinder fixing plate; 11. Lifting cylinder reinforcing plate; 12. Cylinder; 13. Positioning post fixing side plate; 14. Positioning post fixing base plate; 15. Positioning post reinforcing plate; 16. Positioning post connector. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example

[0024] Refer to the instruction manual appendix Figures 1-5A ring-shaped blade cutting fixture includes a base plate 1, a vacuum fixture body 2 fixedly mounted on the base plate 1, a vacuum adsorption fixture 3 fixedly mounted on the vacuum fixture body 2, a through passage inside the vacuum adsorption fixture 3, a vacuum air passage inside the vacuum fixture body 2, the output end of the vacuum air passage being connected to the input end of the through passage, the output end of the through passage extending to the top surface of the vacuum adsorption fixture 3 for adsorbing the blade of product 7, an air pipe connector 8 being connected to the input end of the vacuum air passage, the end of the air pipe connector 8 away from the vacuum air passage being connected to a vacuum negative pressure source, a product positioning post 9 being movably mounted through the base plate 1, the product positioning post 9 being movably disposed inside the vacuum adsorption fixture 3, and the product positioning post 9 being coaxially arranged with the vacuum adsorption fixture 3, and the product positioning post 9 being able to reciprocate in a direction perpendicular to the top surface of the base plate 1.

[0025] It should be noted that the base plate 1 can be understood as a workbench, which can be installed anywhere required; the vacuum fixture body 2 has a vacuum air passage. Simply put, the vacuum fixture body 2 has grooves that form air passages, so that an external vacuum negative pressure source can remove the air inside, creating negative pressure, which makes the blade of product 7 tightly adsorbed on the top surface of the vacuum adsorption fixture 3; the vacuum negative pressure source can be understood as an external vacuum pump (not shown in the figure), which is connected to the air pipe connector 8. When the vacuum pump works, it removes the air in the vacuum air passage and the through passage, so that product 7 is tightly adsorbed on the top surface of the vacuum adsorption fixture 3; product 7 is the blade material to be cut; the laser cutting head cutting method is a technology well known to those skilled in the art, so it will not be described in detail.

[0026] In this embodiment, the specific implementation process is as follows: First, the product 7 is placed coaxially on the top surface of the vacuum adsorption fixture 3. Then, the air in the vacuum air path and the through passage is removed by an external vacuum negative pressure source, so that the product 7 is adsorbed on the top surface of the vacuum adsorption fixture 3. Then, the inner ring of the product 7 is cut by controlling the laser cutting head. After the inner ring is cut, the product positioning post 9 moves up to achieve clamping and positioning of the inner ring of the product 7. Then, the outer ring of the product 7 is cut by the laser cutting head to process the completed ring tool.

[0027] In one embodiment of this utility model, the top of the product positioning post 9 is a stepped structure, and the diameter of the stepped structure at the top of the product positioning post 9 gradually increases from top to bottom.

[0028] In one embodiment of this utility model, a lifting cylinder fixing plate 10 is fixedly installed at the bottom of the base plate 1, a cylinder 12 is fixedly installed on the lifting cylinder fixing plate 10, the output end of the cylinder 12 is connected to a positioning column fixing side plate 13, a positioning column fixing base plate 14 is fixedly installed on the positioning column fixing side plate 13, and the positioning column fixing base plate 14 is connected to the product positioning column 9.

[0029] In one embodiment of the present invention, a lifting cylinder reinforcing plate 11 is fixedly installed on the side of the lifting cylinder fixing plate 10 away from the cylinder 12, and the lifting cylinder reinforcing plate 11 is also fixedly connected to the bottom of the base plate 1.

[0030] It should be noted that by setting the lifting cylinder reinforcing plate 11, the stability of the cylinder 12 is improved, which is beneficial to improving the movement accuracy of the cylinder 12.

[0031] In one embodiment of this utility model, a positioning column reinforcing plate 15 is fixedly installed on the side of the positioning column fixing side plate 13 away from the cylinder 12, and the positioning column reinforcing plate 15 is also fixedly connected to the positioning column fixing base plate 14.

[0032] It should be noted that by setting the reinforced version 15 of the positioning column, the movement stability of the positioning column fixing side plate 13 and the positioning column fixing base plate 14 is improved, which is conducive to improving the up and down movement accuracy of the positioning column 9.

[0033] In one embodiment of this utility model, an inner ring waste cleaning rod 5 is installed on the top of the product positioning post 9, and an inner ring waste cleaning plate 4 is fixedly fitted on the inner ring waste cleaning rod 5. The diameter of the inner ring waste cleaning plate 4 is smaller than the inner diameter of the product 7.

[0034] It should be noted that the diameter of the inner ring waste cleaning plate 4 is slightly smaller than the inner diameter of the product 7. This allows the waste material cut from the inner diameter of the product 7 to be cleaned up using the inner ring waste cleaning plate 4. Initially, the product positioning post 9 does not contact the inner ring of the product 7 for positioning. After the inner ring of the product 7 is cut by the laser cutting head, the inner ring waste cleaning plate 4 is moved up and down to clean up the waste material of the product 7. Then, the product positioning post 9 is moved up to hold the cut inner diameter of the product 7. The method of using the inner ring waste cleaning plate 4 to clean up the cut waste material of the inner diameter of the product 7 is as follows: the product positioning post 9 moves up first, and the inner ring waste cleaning plate 4 moves up first. Since the inner ring waste cleaning plate 4 is located at the top of the product positioning post 9, during the upward movement, the inner ring waste cleaning plate 4 can push out the waste material of the inner ring of the product 7 that is stuck or has been completely cut off, so as to expose the inner ring of the product 7. Then, the product positioning post 9 continues to move up to achieve the positioning and clamping of the inner ring of the product 7.

[0035] In one embodiment of this utility model, the top of the empty adsorption fixture 3 is provided with a plurality of adsorption holes distributed along the circumferential direction, and the adsorption holes are connected to the through channel.

[0036] In one embodiment of this utility model, a positioning post connector 16 is fixedly installed on the top of the positioning post fixing base plate 14. The positioning post connector 16 is fixedly connected to the product positioning post 9. A vacuum clamp accessory 6 is installed between the vacuum clamp body 2 and the positioning post connector 16. The vacuum clamp accessory 6 is used to seal the vacuum air passage in the vacuum clamp body 2.

[0037] In this embodiment, the specific implementation process is as follows: the vacuum fixture body 2, the lifting cylinder fixing plate 10, and the lifting cylinder reinforcing plate 11 are all fixed on the base plate 1; the vacuum fixture accessory 6 is fixed on the vacuum fixture body 2; the cylinder 12 is fixed on the lifting cylinder fixing plate 10; the product positioning column 9 is connected to the cylinder 12 through the positioning column connector 16, the positioning column fixing base plate 14, and the positioning column fixing side plate 13, and the product positioning column 9 rises and falls with the lifting of the cylinder 12; the outer diameter of the upper end of the product positioning column 9 is processed into a stepped outer diameter according to the inner diameter of the main product 7; when the inner diameter of each batch of products 7 is different, the product positioning column 9 can be extended to different heights by adjusting the extension stroke of the cylinder 12, matching the outer diameter of the product positioning column 9 with the same inner diameter of the product 7, which can save the time of changing the product positioning column 9 for different specifications of products and the cost of independently processing the positioning column 9 for multiple specifications of products.

[0038] This invention can be widely used in automated precision cutting of annular blades. It can solve the problem of high waste and low yield in annular blade cutting, and achieve cost reduction and efficiency improvement in the production process. Furthermore, the product 7 of the fixture of this invention has high positioning accuracy, the product 7 is fixed flat without warping, and the requirements for the edge material size of the product 7 are low. On the other hand, the fixture is compact in size, simple and small in structure, low in processing cost, easy to install, and easy to change. It can be used for high-precision cutting and positioning of bottom waste of annular blades.

[0039] This invention requires that the pressed blade material be slightly larger than the required finished blade size, which saves blade material while improving product positioning efficiency and product yield compared to existing ring blade processing solutions.

[0040] Compared with existing solutions, the present invention has the following differences: The clamp of the present invention changes the clamping method of the product 7 from the edge clamping method in the existing solution to the bottom clamping method of the product 7, which eliminates the need for clamping and occupies material size, avoids the clamp affecting the movement path during laser cutting, and eliminates the need to change the clamping position; it also changes the uneven force on the product 7 in the existing solution to the vacuum adsorption method of uniform small holes around the circumference, so that the product is uniformly stressed and in a horizontal state, which solves the technical problem of uneven force on the product 7 causing the product 7 to warp.

[0041] To address the issue of inaccurate positioning in material clamping methods, this invention employs a telescopic positioning post. During material placement and positioning, the material fits onto the positioning post; once the product is adsorbed, the positioning post retracts. This ensures product positioning accuracy without interfering with the laser cutting nozzle.

[0042] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A ring-shaped blade cutting fixture, comprising a base plate (1), characterized in that: A vacuum fixture body (2) is fixedly installed on the base plate (1). A vacuum adsorption fixture (3) is fixedly installed on the vacuum fixture body (2). A through passage is provided inside the vacuum adsorption fixture (3). A vacuum air passage is provided inside the vacuum fixture body (2). The output end of the vacuum air passage is connected to the input end of the through passage. The output end of the through passage extends to the top surface of the vacuum adsorption fixture (3) for adsorbing the blade of the product (7). An air pipe connector (8) is connected to the input end of the vacuum air passage. The end of the air pipe connector (8) away from the vacuum air passage is connected to a vacuum negative pressure source. A product positioning column (9) is movably installed through the base plate (1). The product positioning column (9) is movably located inside the vacuum adsorption fixture (3) and is coaxially arranged with the vacuum adsorption fixture (3). The product positioning column (9) can reciprocate in a direction perpendicular to the top surface of the base plate (1).

2. The annular blade cutting fixture according to claim 1, characterized in that: The top of the product positioning post (9) is a stepped structure, and the diameter of the stepped structure at the top of the product positioning post (9) gradually increases from top to bottom.

3. The annular blade cutting fixture according to claim 2, characterized in that: A lifting cylinder fixing plate (10) is fixedly installed at the bottom of the base plate (1). A cylinder (12) is fixedly installed on the lifting cylinder fixing plate (10). The output end of the cylinder (12) is connected to a positioning column fixing side plate (13). A positioning column fixing base plate (14) is fixedly installed on the positioning column fixing side plate (13). The positioning column fixing base plate (14) is connected to the product positioning column (9).

4. The annular blade cutting fixture according to claim 3, characterized in that: The lifting cylinder fixing plate (10) is fixedly installed with a lifting cylinder reinforcing plate (11) on the side away from the cylinder (12), and the lifting cylinder reinforcing plate (11) is also fixedly connected to the bottom of the base plate (1).

5. A ring-shaped blade cutting fixture according to claim 4, characterized in that: A positioning column reinforcing plate (15) is fixedly installed on the side of the positioning column fixing side plate (13) away from the cylinder (12), and the positioning column reinforcing plate (15) is also fixedly connected to the positioning column fixing base plate (14).

6. A ring-shaped blade cutting fixture according to claim 5, characterized in that: The top of the product positioning column (9) is equipped with an inner ring waste cleaning rod (5), and an inner ring waste cleaning plate (4) is fixedly fitted on the inner ring waste cleaning rod (5). The diameter of the inner ring waste cleaning plate (4) is smaller than the inner diameter of the product (7).

7. A ring-shaped blade cutting fixture according to claim 1, characterized in that: The top of the vacuum adsorption fixture (3) has multiple adsorption holes distributed along the circumferential direction, and the adsorption holes are connected to the through channel.

8. A ring-shaped blade cutting fixture according to claim 3, characterized in that: The top of the positioning column fixing base plate (14) is fixedly installed with a positioning column connector (16), which is fixedly connected to the product positioning column (9). A vacuum fixture accessory (6) is installed between the vacuum fixture body (2) and the positioning column connector (16), which is used to seal the vacuum air path inside the vacuum fixture body (2).

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