Composite clamp for edge rolling of disc-shaped workpiece

Abstract

The utility model discloses a composite clamp for edge rolling of a disc-shaped workpiece. The composite clamp comprises an inner bottom face fixing mechanism used for fixing the inner bottom face of the disc-shaped workpiece and an inner side face fixing mechanism used for fixing the inner side face of the disc-shaped workpiece. The inner bottom surface fixing mechanism comprises an inner bottom surface vacuum negative pressure hole or / and an inner bottom surface vacuum negative pressure groove; the inner bottom surface vacuum negative pressure hole or the inner bottom surface vacuum negative pressure groove is communicated with a negative pressure device for providing negative pressure through a vacuum negative pressure channel; the inner side face fixing mechanism comprises an inner side face ejecting block and an ejecting block driving mechanism used for driving the inner side face ejecting block to be close to or away from the inner side face of the disc-shaped workpiece. According to the composite clamp, the clamping mode is optimized, the operation difficulty is reduced, the clamping and material changing efficiency is improved, and therefore the production capacity efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a clamp, in particular to a composite clamp used for rolling edges of disc-shaped workpieces. Background Art

[0002] There is a stainless steel plate, the shell of which is made by forging a sandwich steel plate with a total thickness of 2.4mm. The sandwich steel plate is a sandwich steel plate with stainless steel on both sides and aluminum alloy in the middle. The formed steel plate shell needs to be trimmed. The central aluminum alloy part is milled off with a T-type milling cutter to a depth of 1mm, and then the edge of the steel plate is rolled with a large roller to make the edge of the steel plate close and smooth. Since the force applied to the workpiece during the rolling process is very large, the ordinary clamping method is difficult to support and does not meet the conditions for firmly clamping the workpiece.

[0003] The current clamping solution is a hamburger-type tooling method, which fixes the workpiece from top to bottom for processing, using a C-type clamping plate and bolts for clamping. The tooling is difficult, the loading and unloading time is long, and the single material change time is 15 minutes, which is difficult to meet the current production capacity efficiency requirements. Utility Model Content

[0004] The purpose of the utility model is to overcome the above-mentioned problems and provide a composite clamp for rolling the disc-shaped workpiece, which optimizes the clamping method, reduces the difficulty of operation, improves the efficiency of clamping and material changing, and thus improves the production capacity efficiency.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A composite fixture for rolling a disc-shaped workpiece, comprising an inner bottom surface fixing mechanism for fixing the inner bottom surface of the disc-shaped workpiece and an inner side surface fixing mechanism for fixing the inner side surface of the disc-shaped workpiece;

[0007] The inner bottom surface fixing mechanism comprises an inner bottom surface vacuum negative pressure hole and / or an inner bottom surface vacuum negative pressure groove, and the inner bottom surface vacuum negative pressure hole or the inner bottom surface vacuum negative pressure groove is connected to a negative pressure device providing negative pressure through a vacuum negative pressure channel;

[0008] The inner side surface fixing mechanism comprises an inner side surface top block and a top block driving mechanism for driving the inner side surface top block to approach or move away from the inner side surface of the disc-shaped workpiece.

[0009] The working principle of the above-mentioned composite fixture for rolling hemming of disc-shaped workpieces is as follows:

[0010] During operation, the disc-shaped workpiece is placed upside down on the fixture. At this time, the inner bottom surface of the disc-shaped workpiece is attached to the top of the vacuum negative pressure hole on the inner bottom surface, and the inner side surface of the disc-shaped workpiece is attached to the side of the inner side surface top block; the inner side surface top block is driven close to the inner side surface of the disc-shaped workpiece by the top block driving mechanism, so that the side surface top block presses against the inner side surface of the disc-shaped workpiece; negative pressure is provided by the negative pressure device, and the inner bottom surface of the disc-shaped workpiece is adsorbed and fixed by the vacuum negative pressure hole on the inner bottom surface and / or the vacuum negative pressure groove on the inner bottom surface. At this time, the disc-shaped workpiece is subjected to the dual forces of vacuum suction and internal support pressure, thereby ensuring the workpiece clamping stability and clamping force.

[0011] When the clamping needs to be released, the inner side top block is driven away from the inner side of the disc-shaped workpiece by the top block driving mechanism and the vacuum negative pressure suction is stopped. The operation is very simple and is conducive to improving the clamping efficiency.

[0012] A preferred embodiment of the utility model, wherein the inner side fixing mechanism also includes an inner side vacuum negative pressure hole and / or an inner side vacuum negative pressure groove, and the inner side vacuum negative pressure hole or the inner side vacuum negative pressure groove is connected to a negative pressure device that provides negative pressure through a vacuum negative pressure channel.

[0013] Furthermore, the inner side surface fixing mechanism also includes a contoured main body seat, and the side surface of the contoured main body seat is provided with the inner side surface vacuum negative pressure hole and / or the inner side surface vacuum negative pressure groove.

[0014] Furthermore, a top block receiving groove for receiving the top block on the inner side surface is provided on the side surface of the contoured main body seat.

[0015] Furthermore, the contoured main body seat is a contoured structure matching the disc-shaped workpiece, and the contoured main body seat is a rectangular structure or a circular structure.

[0016] Furthermore, when the contoured main body seat is a rectangular structure, the inner side surface vacuum negative pressure holes and / or inner side surface vacuum negative pressure grooves are provided in two groups and are respectively arranged on two adjacent side surfaces of the contoured main body seat;

[0017] The top block receiving grooves are provided in two groups and are respectively arranged on the other two adjacent side surfaces of the contoured main body seat.

[0018] Furthermore, when the contoured main body seat is a circular structure, the inner side surface vacuum negative pressure holes and / or inner side surface vacuum negative pressure grooves are provided with at least two groups and are evenly arranged on the side surface of the contoured main body seat along the circumferential direction with the axis of the contoured main body seat as the center of the circle;

[0019] The top block receiving grooves are provided with at least two groups and are respectively located between two adjacent groups of inner side surface vacuum negative pressure holes or / and inner side surface vacuum negative pressure grooves.

[0020] In a preferred embodiment of the utility model, the inner bottom surface fixing mechanism further comprises an adsorption top plate, on which the inner bottom surface vacuum negative pressure hole and / or the inner bottom surface vacuum negative pressure groove are provided.

[0021] Furthermore, the adsorption top plate and the contoured main body seat are both provided with vacuum negative pressure channels that are interconnected;

[0022] The vacuum negative pressure channel of the adsorption top plate is connected to the vacuum negative pressure groove of the inner bottom surface;

[0023] The vacuum negative pressure hole of the contoured main body seat is communicated with the vacuum negative pressure groove on the inner side.

[0024] Furthermore, the inner side fixing mechanism also includes a wedge-shaped push block, and the contoured main body seat is provided with a wedge-shaped receiving groove for receiving the wedge-shaped push block; the wedge-shaped push block is connected to the driving end of the top block driving mechanism;

[0025] The wedge-shaped push block is provided with an inclined push portion or a push groove, and the inner side top block is provided with a push groove matched with the push portion or a push portion matched with the push groove; the push groove is a dovetail groove structure; the moving direction of the wedge-shaped push block is perpendicular to the moving direction of the inner side top block. Through the above structure, under the drive of the top block driving mechanism, the wedge-shaped push block is lifted and lowered relative to the contoured main body seat, thereby driving the inner side top block to move laterally, so that the inner side top block is close to or away from the inner side of the disc-shaped workpiece.

[0026] Furthermore, the top block driving mechanism comprises a top block driving cylinder, and a telescopic rod of the top block driving cylinder is connected to the wedge-shaped push block.

[0027] Furthermore, the inner side fixing mechanism also includes a guide block, and a linear guide structure is provided between the guide block and the wedge-shaped push block.

[0028] Compared with the prior art, the utility model has the following beneficial effects:

[0029] The composite clamp of the utility model clamps and fixes the workpiece by means of vacuum adsorption and mechanical internal support, which not only ensures the clamping stability and clamping force of the workpiece, but also reduces the difficulty of operation, improves the efficiency of clamping and material changing, and thus improves the production capacity efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the three-dimensional structure of the composite clamp for rolling hemming a disc-shaped workpiece of the utility model when clamping the workpiece.

[0031] Figure 2 It is a three-dimensional structural schematic diagram of one embodiment of the composite clamp for rolling hemming a disc-shaped workpiece according to the utility model.

[0032] Figure 3 It is a three-dimensional structural schematic diagram of one embodiment of the inner side fixing mechanism of the utility model.

[0033] Figure 4 It is a cross-sectional view of one embodiment of the adsorption top plate and the contoured main body seat of the utility model.

[0034] Figure 5 It is a three-dimensional structural schematic diagram of one embodiment of the contoured main body seat of the utility model.

[0035] Figure 6 It is a three-dimensional structural schematic diagram of one embodiment of the inner side top block and the top block driving mechanism of the utility model.

[0036] Figure 7 It is a schematic exploded view of the three-dimensional structure of another embodiment of the composite clamp for hemming a disc-shaped workpiece according to the utility model. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is further described below in conjunction with embodiments and drawings, but the implementation methods of the utility model are not limited thereto.

[0038] Example 1

[0039] See also Figure 1-3 The composite fixture for rolling hemming of a disc-shaped workpiece in this embodiment comprises an inner bottom surface fixing mechanism for fixing the inner bottom surface of the disc-shaped workpiece and an inner side surface fixing mechanism for fixing the inner side surface of the disc-shaped workpiece; the inner bottom surface fixing mechanism comprises an adsorption top plate 1, on which an inner bottom surface vacuum negative pressure groove 1-1 (an inner bottom surface vacuum negative pressure hole can also be used) is provided, and the inner bottom surface vacuum negative pressure groove 1-1 is connected to a negative pressure device providing negative pressure through a vacuum negative pressure channel; the inner side surface fixing mechanism comprises a contoured main body seat 2, an inner side surface top block 3 and a top block driving mechanism for driving the inner side surface top block 3 to approach or move away from the inner side surface of the disc-shaped workpiece; the side surface of the contoured main body seat 2 is provided with an inner side surface vacuum negative pressure groove 2-1 (an inner side surface vacuum negative pressure hole can also be used), and the inner side surface vacuum negative pressure groove 2-1 is connected to a negative pressure device providing negative pressure through a vacuum negative pressure channel.

[0040] See also Figure 3-4 The adsorption top plate 1 and the contoured main body seat 2 are both provided with vacuum negative pressure channels 4 which are interconnected; the vacuum negative pressure channel 4 of the adsorption top plate 1 is also connected to the vacuum negative pressure groove 1-1 on the inner bottom surface; the vacuum negative pressure channel 4 of the contoured main body seat 2 is also connected to the vacuum negative pressure groove 2-1 on the inner side surface.

[0041] See also Figure 5The side of the contoured main body seat 2 is provided with a top block receiving groove 2-2 for receiving the inner side top block 3.

[0042] See also Figure 5 The contoured main body seat 2 is a contoured structure that matches the disc-shaped workpiece, and the contoured main body seat 2 is a rectangular structure; the inner side vacuum negative pressure grooves 2-1 are provided with two groups and are respectively arranged on two adjacent side surfaces of the contoured main body seat 2; the top block storage grooves 2-2 are provided with two groups and are respectively arranged on the other two adjacent side surfaces of the contoured main body seat 2.

[0043] See also Figure 5-6 The inner side fixing mechanism also includes a wedge-shaped push block 5, and the profiling main body seat 2 is provided with a wedge-shaped receiving groove 2-3 for accommodating the wedge-shaped push block 5; the wedge-shaped push block 5 is connected to the driving end of the top block driving mechanism; the wedge-shaped push block 5 is provided with an inclined pushing portion (or pushing groove), and the inner side top block 3 is provided with a pushing groove (or a pushing portion that cooperates with the pushing groove) that matches the pushing portion; the pushing groove is a dovetail groove structure; the moving direction of the wedge-shaped push block 5 is perpendicular to the moving direction of the inner side top block 3. Through the above structure, under the drive of the top block driving mechanism, the wedge-shaped push block 5 is lifted and lowered relative to the profiling main body seat 2, thereby driving the inner side top block 3 to move laterally, so that the inner side top block 3 is close to or away from the inner side of the disc-shaped workpiece.

[0044] See also Figure 6 The top block driving mechanism includes a top block driving cylinder 6, and the telescopic rod of the top block driving cylinder 6 is connected to the wedge-shaped push block 5.

[0045] See also Figure 6 The inner side fixing mechanism also includes a guide block 7, and a linear guide structure is provided between the guide block 7 and the wedge-shaped push block 5.

[0046] See also Figure 1-6 The working principle of the composite fixture for rolling the disc-shaped workpiece in this embodiment is as follows:

[0047] During operation, the disc-shaped workpiece is placed upside down on the fixture. At this time, the inner bottom surface of the disc-shaped workpiece is attached to the top of the inner bottom surface vacuum negative pressure groove 1-1, and the inner side surface of the disc-shaped workpiece is attached to the inner side surface top block 3 and the side of the inner side surface vacuum negative pressure groove 2-1; the inner side surface top block 3 is driven by the top block driving mechanism to approach the inner side surface of the disc-shaped workpiece, so that the side surface top block supports the inner side surface of the disc-shaped workpiece; negative pressure is provided by the negative pressure device, and the inner bottom surface of the disc-shaped workpiece is adsorbed and fixed by the inner bottom surface vacuum negative pressure groove 1-1. At this time, the disc-shaped workpiece is subjected to the dual forces of vacuum suction and internal support pressure, thereby ensuring the workpiece clamping stability and clamping force.

[0048] When the clamping needs to be released, the inner side top block 3 is driven away from the inner side of the disc-shaped workpiece and the vacuum negative pressure suction is stopped through the top block driving mechanism. The operation is very simple and is conducive to improving the efficiency of clamping.

[0049] Example 2

[0050] See also Figure 7 Different from Example 1, the contoured main body seat 2 of this embodiment is a circular structure, and the inner side vacuum negative pressure grooves 2-1 are provided with at least two groups and are evenly arranged on the side of the contoured main body seat 2 along the circumferential direction with the axis of the contoured main body seat 2 as the center; the inner side top blocks 3 are provided with at least two groups and are respectively located between two adjacent groups of inner side vacuum negative pressure grooves 2-1.

[0051] Example 3

[0052] Different from the above-mentioned embodiment, the contoured main body seat may also be a structure of other shapes, such as an ellipse or a polygon.

[0053] The above is a preferred implementation mode of the present invention, but the implementation mode of the present invention is not limited by the above content. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A composite fixture for rolling a disc-shaped workpiece, characterized in that: It includes an inner bottom surface fixing mechanism for fixing the inner bottom surface of the disc-shaped workpiece and an inner side surface fixing mechanism for fixing the inner side surface of the disc-shaped workpiece; The inner bottom surface fixing mechanism comprises an inner bottom surface vacuum negative pressure hole and / or an inner bottom surface vacuum negative pressure groove, and the inner bottom surface vacuum negative pressure hole or the inner bottom surface vacuum negative pressure groove is connected to a negative pressure device providing negative pressure through a vacuum negative pressure channel; The inner side surface fixing mechanism comprises an inner side surface top block and a top block driving mechanism for driving the inner side surface top block to approach or move away from the inner side surface of the disc-shaped workpiece.

2. The composite fixture for rolling hemming a disc-shaped workpiece according to claim 1, characterized in that: The inner side fixing mechanism also includes an inner side vacuum negative pressure hole and / or an inner side vacuum negative pressure groove, and the inner side vacuum negative pressure hole or the inner side vacuum negative pressure groove is connected to a negative pressure device that provides negative pressure through a vacuum negative pressure channel.

3. The composite fixture for rolling hemming a disc-shaped workpiece according to claim 2, characterized in that: The inner side fixing mechanism also includes a contoured main body seat, and the side surface of the contoured main body seat is provided with the inner side vacuum negative pressure hole and / or the inner side vacuum negative pressure groove.

4. The composite fixture for rolling hemming a disc-shaped workpiece according to claim 3, characterized in that: A top block receiving groove for receiving the top block on the inner side surface is provided on the side surface of the contoured main body seat.

5. The composite fixture for rolling hemming a disc-shaped workpiece according to claim 4, characterized in that: The profiling main body seat is a profiling structure matching the disc-shaped workpiece, and the profiling main body seat is a rectangular structure; The inner side surface vacuum negative pressure holes and / or inner side surface vacuum negative pressure grooves are provided in two groups and are respectively arranged on two adjacent side surfaces of the contoured main body seat; The top block receiving grooves are provided in two groups and are respectively arranged on the other two adjacent side surfaces of the contoured main body seat.

6. The composite fixture for rolling hemming a disc-shaped workpiece according to claim 4, characterized in that: The profiling main body seat is a profiling structure matching the disc-shaped workpiece, and the profiling main body seat is a circular structure; The inner side surface vacuum negative pressure holes and / or inner side surface vacuum negative pressure grooves are provided with at least two groups and are evenly arranged on the side surface of the profiling main body seat along the circumferential direction with the axis of the profiling main body seat as the center of the circle; The top block receiving grooves are provided with at least two groups and are respectively located between two adjacent groups of inner side surface vacuum negative pressure holes or / and inner side surface vacuum negative pressure grooves.

7. The composite fixture for rolling hemming a disc-shaped workpiece according to claim 3, characterized in that: The inner bottom surface fixing mechanism also includes an adsorption top plate, on which the inner bottom surface vacuum negative pressure hole and / or the inner bottom surface vacuum negative pressure groove are arranged.

8. The composite fixture for rolling hemming a disc-shaped workpiece according to claim 7, characterized in that: The adsorption top plate and the contoured main body seat are both provided with vacuum negative pressure channels that are interconnected; The vacuum negative pressure channel of the adsorption top plate is connected to the vacuum negative pressure groove of the inner bottom surface; The vacuum negative pressure hole of the contoured main body seat is communicated with the vacuum negative pressure groove on the inner side.

9. The composite fixture for rolling hemming a disc-shaped workpiece according to claim 4, characterized in that: The inner side fixing mechanism also includes a wedge-shaped push block, and the contoured main body seat is provided with a wedge-shaped receiving groove for receiving the wedge-shaped push block; the wedge-shaped push block is connected to the driving end of the top block driving mechanism; The wedge-shaped push block is provided with an inclined push portion or a push groove, and the inner side top block is provided with a push groove matched with the push portion or a push portion matched with the push groove; the push groove is a dovetail groove structure; the moving direction of the wedge-shaped push block is perpendicular to the moving direction of the inner side top block.

10. The composite fixture for rolling hemming a disc-shaped workpiece according to claim 9, characterized in that: The inner side fixing mechanism also includes a guide block, and a linear guide structure is provided between the guide block and the wedge-shaped push block.

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