Large long-arm workpiece balanced clamping mechanism and use method thereof

Abstract

The present invention discloses a large-scale long-arm workpiece balanced clamping mechanism, comprising two clamping mechanism monomers placed opposite to each other, the clamping mechanism monomers comprising: a bottom plate, a flap, a cylinder, and a clamping vertical plate, a first arc-shaped groove is longitudinally opened on the top of the bottom plate, the cylinder is installed in the first arc-shaped groove, and the front end of the cylinder is located outside the first arc-shaped groove; the flap is welded to the upper part of the cylinder, the clamping vertical plate is connected to the top of the bottom plate, and the clamping vertical plate is located at the rear of the first arc-shaped groove. The present invention also discloses a method for using a large-scale long-arm workpiece balanced clamping mechanism. The present invention can align and clamp a large-scale long-arm workpiece on a processing device, thereby improving the processing accuracy and processing efficiency of the large-scale long-arm workpiece.

Description

Technical Field

[0001] The invention belongs to the technical field of large-scale long-arm workpiece processing, and in particular relates to a large-scale long-arm workpiece balanced clamping mechanism and a use method thereof. Background Art

[0002] Large long-arm workpieces are structural parts welded from steel plates of different specifications, shapes and materials. There are many welds on the workpieces, and the workpieces are prone to shrinkage and distortion after cooling, which makes it more difficult to align the workpieces.

[0003] In order to further process the workpiece, it is necessary to align the workpiece. In order to maintain the processing accuracy, it is necessary to find the positioning surface and then use the fixture to clamp and process the workpiece. However, it is often difficult to align the positioning surface for large long-arm workpieces. Even if it is aligned, it is only point contact, which has a great impact on the subsequent processing accuracy. Summary of the invention

[0004] The purpose of the present invention is to provide a balanced clamping mechanism for a large long-arm workpiece and a method of using the same, which can align the large long-arm workpiece and clamp it on processing equipment. It does not require axial alignment, but only circumferential alignment, which greatly improves the alignment efficiency and improves the processing accuracy and efficiency of the large long-arm workpiece.

[0005] To achieve the above purpose, the technical solution used in the present invention is:

[0006] A large long-arm workpiece balancing clamping mechanism includes two clamping mechanism units placed opposite to each other. The clamping mechanism units include: a base plate, a flap, a cylinder, and a clamping vertical plate. A first arc-shaped groove is longitudinally opened on the top of the base plate. The cylinder is installed in the first arc-shaped groove, and the front end of the cylinder is located outside the first arc-shaped groove; the flap is welded to the upper part of the cylinder, the clamping vertical plate is connected to the top of the base plate, and the clamping vertical plate is located at the rear of the first arc-shaped groove.

[0007] Furthermore, two mutually parallel clamping upright plates are connected to the top of the base plate.

[0008] Furthermore, the openings of the first arc-shaped groove are respectively located at the top and the front end of the bottom plate.

[0009] Furthermore, a second arc-shaped groove is formed at the bottom of the flap, and the cylinder is welded in the second arc-shaped groove.

[0010] Furthermore, a through groove is arranged on the side of the cylinder, and the bottom of the flap is welded in the through groove.

[0011] Furthermore, support bodies are respectively arranged on both sides of the bottom plate, and support columns are arranged on the tops of the support bodies.

[0012] Furthermore, the bottom plate and the clamping vertical plate are connected by bolts, and the supporting body and the bottom plate are connected by bolts.

[0013] The method of using a large long-arm workpiece balanced clamping mechanism includes:

[0014] Install two clamping mechanism monomers on the machine fixture so that the two cylinders are in a horizontal coaxial state; hoist the large long-arm workpiece between the two clamping vertical plates, adjust the machining position of the large long-arm workpiece, and place the large long-arm workpiece on the flap;

[0015] The large long-arm workpiece is rotated to align the machining position, the machine fixture drives the two clamping mechanism units to move, the two clamping vertical plates clamp the large long-arm workpiece, the lathe uses the alignment position as a reference point to set machining parameters, and machines the machining position.

[0016] Preferably, two jacks are placed on both sides of the lower part of the large long-arm workpiece, and the two jacks are used to rotate the large long-arm workpiece to align the machining position.

[0017] Preferably, after the two clamping vertical plates clamp the large long-arm workpiece, the sling is removed.

[0018] The technical effects of the present invention include:

[0019] The present invention can align a large-scale long-arm workpiece and clamp it on processing equipment, thereby improving the processing accuracy and processing efficiency of the large-scale long-arm workpiece.

[0020] The components of the present invention are connected by bolts, which are convenient to disassemble and assemble, and are convenient to use in situations where disassembly and clamping are often required. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a diagram showing the use state of the large-scale long-arm workpiece balance clamping mechanism of the present invention;

[0022] Figure 2 It is a schematic structural diagram of a clamping mechanism monomer 1 in the present invention;

[0023] Figure 3 It is a front view of the clamping mechanism monomer in the present invention;

[0024] Figure 4 It is a right side view of the clamping mechanism monomer of the present invention;

[0025] Figure 5 It is a top view of the clamping mechanism monomer in the present invention. DETAILED DESCRIPTION

[0026] The following description sufficiently illustrates specific embodiments of the invention to enable those skilled in the art to practice and reproduce the invention.

[0027] like Figure 1The figure shows the use state of the large-scale long-arm workpiece balance clamping mechanism of the present invention.

[0028] The large-scale long-arm workpiece balanced clamping mechanism comprises two clamping mechanism monomers 1 which are placed opposite to each other, and the large-scale long-arm workpiece 2 is placed on the two clamping mechanism monomers 1 .

[0029] like Figure 2 As shown, it is a schematic diagram of the structure of the clamping mechanism monomer 1 in the present invention; Figure 3 As shown, it is a front view of the clamping mechanism monomer 1 of the present invention; Figure 4 As shown, it is a right view of the clamping mechanism monomer 1 of the present invention; Figure 5 , which is a top view of the clamping mechanism monomer 1 of the present invention.

[0030] The clamping mechanism unit 1 includes: a base plate 11, a flap 12, a cylinder 13, and a clamping vertical plate 14. A first arc-shaped groove is longitudinally opened on the top of the base plate 11, and the cylinder 13 is placed in the first arc-shaped groove, and the front end of the cylinder 13 is located outside the first arc-shaped groove; the flap 12 is welded to the upper part of the cylinder 13, and the clamping vertical plate 14 is connected (welded or bolted) to the top of the base plate 11, and the clamping vertical plate 14 is located at the rear of the first arc-shaped groove.

[0031] A second arc groove is formed at the bottom of the flap 12, and the cylinder 13 is welded in the second arc groove; or a through groove is formed on the side of the cylinder 13, and the bottom of the flap 12 is welded in the through groove. The radius of the first arc groove, the second arc groove, and the cylinder 13 are the same. Lubricating grease is applied in the first arc groove.

[0032] Two clamping plates 14 are connected to the upper part of the bottom plate 11, and the two clamping plates 14 are parallel to each other. The opening of the first arc groove is located at the front end of the top of the bottom plate 11. The bottom plate 11 can be provided with a plurality of mounting through holes to facilitate fixing the bottom plate 11. The clamping plates 14 and the bottom plate 11 are hollow structures to reduce weight.

[0033] In order to further keep the bottom plate 11 level, support bodies 15 are respectively provided on both sides of the bottom plate 11 (welded or bolted), and support columns are provided on the tops of the support bodies 15 to facilitate the placement of large long-arm workpieces 2 with a relatively large width.

[0034] The method of using the large long-arm workpiece balanced clamping mechanism is as follows:

[0035] Step 1: Install two clamping mechanism monomers 1 on the machine fixture so that the two cylinders 13 are in a horizontal coaxial state;

[0036] The base plate 11 is positioned and clamped on the machine fixture so that the two cylinders 13 are in a horizontal coaxial state.

[0037] Step 2: hoist the large long-arm workpiece between the two clamping vertical plates 14, adjust the machining position of the large long-arm workpiece, and place the large long-arm workpiece on the flap 12;

[0038] Place two jacks on both sides of the lower part of the large long-arm workpiece, use the two jacks to rotate the large long-arm workpiece, and align the machining position.

[0039] Since the two cylinders 13 are in a horizontal coaxial state and the flap 12 is in the same horizontal plane, after a large long-arm workpiece is placed on the flap 12, only circumferential alignment is required without axial alignment, which greatly improves the alignment efficiency.

[0040] Step 3: After the large long-arm workpiece is aligned, the machine fixture drives the two clamping mechanism units 1 to move, and the two clamping vertical plates 14 clamp the large long-arm workpiece. The lathe uses the alignment position as a reference point to set machining parameters and machines the machining position.

[0041] After the two clamping upright plates 14 clamp the large long-arm type workpiece, the sling is removed.

[0042] The terms used in the present invention are illustrative and exemplary, rather than restrictive. Since the present invention can be implemented in various forms without departing from the spirit or essence of the technical solution, it should be understood that the above embodiments are not limited to any of the aforementioned details, but should be widely interpreted within the spirit and scope defined by the attached claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the attached claims.

Claims

1. A large long-arm workpiece balanced clamping mechanism, comprising: The jack is characterized in that it also includes two relatively placed clamping mechanism units, the clamping mechanism units include: a base plate, a flap, a cylinder, and a clamping vertical plate. A first arc groove is longitudinally opened on the top of the base plate, the opening of the first arc groove is located at the top front end of the base plate, the cylinder is installed in the first arc groove, and the front end of the cylinder is located outside the first arc groove; the flap is welded to the upper part of the cylinder, the clamping vertical plate is connected to the top of the base plate, the clamping vertical plate is located at the rear of the first arc groove, the two cylinders are in a horizontal coaxial state, and the two flaps are in the same horizontal plane; support bodies are respectively arranged on both sides of the base plate, and support columns are arranged on the top of the support bodies; the two jacks are used to be placed on both sides of the lower part of a large long-arm workpiece.

2. The large-scale long-arm workpiece balanced clamping mechanism according to claim 1, characterized in that: Two mutually parallel clamping uprights are connected to the top of the base plate.

3. The large-scale long-arm workpiece balanced clamping mechanism according to claim 1, characterized in that: A second arc groove is formed at the bottom of the flap, and the cylinder is welded in the second arc groove.

4. The large-scale long-arm workpiece balanced clamping mechanism according to claim 1, characterized in that: A through groove is arranged on the side of the cylinder, and the bottom of the flap is welded in the through groove.

5. The large-scale long-arm workpiece balanced clamping mechanism according to claim 1, characterized in that: The bottom plate and the clamping vertical plate are connected by bolts, and the supporting body and the bottom plate are connected by bolts.

6. The method for using the large-scale long-arm workpiece balanced clamping mechanism according to any one of claims 1 to 5, characterized in that: include: Install two clamping mechanism monomers on the machine fixture so that the two cylinders are in a horizontal coaxial state; hoist the large long-arm workpiece between the two clamping vertical plates, adjust the machining position of the large long-arm workpiece, and place the large long-arm workpiece on the flap; Place two jacks on both sides of the lower part of the large long-arm workpiece, use the two jacks to rotate the large long-arm workpiece to align the machining position, the machine fixture drives the two clamping mechanism units to move, the two clamping vertical plates clamp the large long-arm workpiece, the lathe uses the alignment position as the reference point to set the machining parameters, and machines the machining position.

7. The method for using the large-scale long-arm workpiece balanced clamping mechanism according to claim 6, characterized in that: After the two clamping plates clamp the large long-arm workpiece, remove the sling.

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