Cylindrical metal workpiece clamping tool

Abstract

The utility model relates to a cylindrical metal workpiece clamping tool which comprises an adjusting frame which comprises a fixing frame, a guide groove, a servo motor and a threaded rod. The clamp comprises a movable frame, a plugging block, a movable piece, a reset spring, a hinge plate and a long screw, and the movable frame comprises an inverted-T-shaped groove; the plugging block is arranged in the inverted-T-shaped groove; the moving part comprises a movable block, a mounting piece and a ball; the reset spring is arranged in the inverted-T-shaped groove and is in contact with the movable block; the hinge plate is hinged to the movable block; and the long screw extends into the movable block. According to the utility model, parts such as the adjusting frame and the clamps are arranged, the distance between the clamps can be adjusted through the matching relation between the adjusting frame and the clamps, and when the clamps move towards the direction close to each other and then are in contact with a metal piece placed on the surface of the placing table, the position of the metal piece is fixed under the clamping of the clamps.

Description

Technical Field

[0001] The utility model relates to a clamping tool, in particular to a cylindrical metal workpiece clamping tool. Background Art

[0002] Tooling, or process equipment, is the general term for various tools used in the manufacturing process, including cutting tools, fixtures, molds, measuring tools, inspection tools, auxiliary tools, pliers tools and work station equipment, etc. Tooling is its general abbreviation.

[0003] Clamping tooling refers specifically to fixtures. When clamping cylindrical metal workpieces, traditional clamping tooling needs to use different fixtures according to the diameter of the cylindrical metal workpiece, or directly use vise clamps to clamp the two sides of the cylindrical metal workpiece. The above two common fixtures have the following defects:

[0004] 1. The cost of purchasing fixtures of different diameters is high, and they cannot cover all sizes and are not applicable enough;

[0005] 2. In order to ensure the stability of clamping when using the vise, sufficient pressure is required between the vise and the side wall of the cylindrical metal workpiece. Most metals are difficult to keep from deforming under this pressure, which can easily cause the shape of the workpiece to change. In addition, the surface used by the vise to clamp is mostly flat, which cannot fit the cylindrical metal workpiece well, resulting in poor clamping effect.

[0006] Therefore, a cylindrical metal workpiece clamping tool is proposed to solve the above-mentioned problems. Utility Model Content

[0007] Based on the above description, the utility model provides a cylindrical metal workpiece clamping tool to solve the problems of high cost of existing clamps, easy deformation of the workpiece during the clamping process and poor clamping effect.

[0008] The utility model solves the above-mentioned technical problem with a technical solution as follows: A cylindrical metal workpiece clamping fixture comprises: an adjusting frame, the adjusting frame comprises a fixed frame, a guide groove, a servo motor and a threaded rod, the clamp comprises a movable frame, a blocking block, a movable part, a return spring, a hinge plate and a long screw, the movable frame is threadedly connected to the threaded rod and comprises a convex groove, the blocking block is arranged inside the convex groove by a screw, the movable part is arranged inside the convex groove and comprises a movable block, a mounting plate and a ball bearing, the return spring is arranged inside the convex groove and contacts the movable block, the hinge plate and the movable block are hinged to each other, and the long screw extends to the inside of the movable block and is threadedly connected to the movable block.

[0009] On the basis of the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, a guide groove and a placement platform are provided on the upper surface of the fixing frame, a threaded rod passing through the guide groove is provided inside the fixing frame, a servo motor with an output shaft connected to the threaded rod is provided at one end of the fixing frame, and the placement platform is provided between the two guide grooves.

[0011] Furthermore, the surface of the threaded rod is provided with two sections of threads, and the directions of the two sections of threads are opposite.

[0012] Furthermore, the movable frame includes a threaded movable plate, and the two threaded movable plates are respectively adapted to the two sections of threads.

[0013] Furthermore, a T-plate is provided at the top of the threaded movable plate, and convex grooves are provided at three ends of the T-plate. A threaded positioning hole is provided on the bottom wall of the convex groove, and a sealing block is provided inside the convex groove through a screw.

[0014] Furthermore, the blocking block includes a first convex block, a top end of the first convex block is provided with a screw mounting hole, a side of the first convex block is provided with a baffle, and the baffle extends to the outside of the convex groove.

[0015] Furthermore, the movable block includes a second convex block, hemispherical grooves are arranged on both sides of the second convex block, a vertical tube and a threaded through hole are arranged on the top of the second convex block, and the vertical tube is connected to the threaded through hole.

[0016] Furthermore, the mounting plate comprises a U-shaped plate, the bottom end and side wall of the U-shaped plate are both provided with arc holes, a ball is provided between the arc hole and the hemispherical groove, and the bottom end of the U-shaped plate is provided with a through hole.

[0017] Furthermore, the hinged plate and the vertical pipe are hinged to each other, and the long screw passes through the vertical pipe and is threadedly connected to the threaded through hole.

[0018] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0019] 1. The utility model sets an adjustment frame and a clamp and other components, and the distance between the clamps can be adjusted through the cooperation between the adjustment frame and the clamp. When the clamps move in a direction close to each other, they contact the metal parts placed on the surface of the placement table. At this time, the metal parts are fixed in position under the clamping of the clamp.

[0020] 2. By setting the moving part, the return spring, the hinge plate and the long screw, the effect of pushing the moving part to move is achieved when the clamp contacts the metal part. When the moving part moves along the direction of the convex groove, the angle between the hinge plates changes, so that the hinge plate clamps the metal part. After clamping, the position of the hinge plate is fixed by tightening the long screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic structural diagram of a cylindrical metal workpiece clamping tool provided in an embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the clamp in the embodiment of the utility model;

[0023] Figure 3 for Figure 2 A structural diagram from another perspective;

[0024] Figure 4 This is a schematic diagram of the structure of the moving part in the embodiment of the utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the mobile frame in the embodiment of the utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the blocking block in the embodiment of the utility model;

[0027] Figure 7 This is a schematic diagram of the structure of the movable block in the embodiment of the utility model;

[0028] Figure 8 This is a schematic diagram of the structure of the mounting plate in the embodiment of the utility model;

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0030] 1. Fixed frame; 2. Guide groove; 3. Servo motor; 4. Threaded rod; 5. Moving frame; 51. Threaded moving plate; 52. T-plate; 53. Embossed groove; 54. Threaded positioning hole; 6. Blocking block; 61. First embossed block; 62. Baffle; 63. Screw mounting hole; 7. Movable block; 71. Second embossed block; 72. Vertical pipe; 73. Hemispherical groove; 8. Mounting plate; 81. U-shaped plate; 82. Arc hole; 83. Through hole; 9. Ball; 10. Return spring; 11. Hinge plate; 12. Long screw. DETAILED DESCRIPTION

[0031] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0033] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0034] See also Figure 1 , a cylindrical metal workpiece clamping tool, comprising:

[0035] The adjusting frame comprises a fixing frame 1, a guide groove 2, a servo motor 3 and a threaded rod 4. The upper surface of the fixing frame 1 is provided with the guide groove 2 and a placement platform. The inside of the fixing frame 1 is provided with a threaded rod 4 penetrating the guide groove 2. One end of the fixing frame 1 is provided with a servo motor 3 whose output shaft is connected to the threaded rod 4. The placement platform is arranged between two of the guide grooves 2. The surface of the threaded rod 4 is provided with two sections of threads, and the directions of the two sections of threads are opposite.

[0036] Based on the above, the servo motor 3 controls the start and stop as well as the forward and reverse rotation of the threaded rod 4 , thereby causing the moving frame 5 to move along the guide groove 2 in the direction of approaching or moving away from each other.

[0037] like Figure 1 and Figure 5 As shown, the movable frame 5 is threadedly connected with the threaded rod 4 and includes a convex groove 53. The movable frame 5 includes a threaded movable plate 51. The two threaded movable plates 51 are respectively adapted to the two sections of threads. A T-plate 52 is provided at the top of the threaded movable plate 51. The three ends of the T-plate 52 are all provided with convex grooves 53. The bottom wall of the convex groove 53 is provided with a threaded positioning hole 54. The interior of the convex groove 53 is provided with a blocking block 6 through a screw.

[0038] Based on the above, the convex groove 53 guides the movement of the moving part, so that the moving part can only move along the direction of the convex groove 53 and avoid the moving part from being disengaged, and the setting of the threaded positioning hole 54 enables the blocking block 6 to be fixed by screws.

[0039] like Figure 1 , Figure 2 as well as Figure 6 As shown, a blocking block 6 is set inside the convex groove 53 by screws, and the blocking block 6 includes a first convex block 61, a screw mounting hole 63 is set at the top of the first convex block 61, and a baffle 62 is set on one side of the first convex block 61, and the baffle 62 extends to the outside of the convex groove 53;

[0040] Based on the above, the screw passes through the screw mounting hole 63 and is threadedly connected to the threaded positioning hole 54, so that the first convex block 61 is fixed inside the convex groove 53. At this time, the baffle 62 is tightly fitted with the T-plate 52, thereby achieving a blocking effect.

[0041] like Figure 4 , Figure 7 as well as Figure 8 As shown, the moving member is arranged inside the convex groove 53 and includes a movable block 7, a mounting sheet 8 and a ball 9;

[0042] The movable block 7 comprises a second convex block 71, and hemispherical grooves 73 are arranged on both sides of the second convex block 71. A vertical tube 72 and a threaded through hole are arranged on the top of the second convex block 71, and the vertical tube 72 is connected to the threaded through hole.

[0043] The mounting plate 8 comprises a U-shaped plate 81, the bottom end and side wall of the U-shaped plate 81 are both provided with arc holes 82, a ball 9 is provided between the arc hole 82 and the hemispherical groove 73, and the bottom end of the U-shaped plate 81 is provided with a through hole 83;

[0044] Based on the above, the mounting plate 8 is set on the outside of the movable block 7 by screws, and the ball 9 is restricted inside the hemispherical groove 73 and the arc hole 82. At this time, the ball 9 can rotate, so that the movable part moves more smoothly inside the convex groove 53, and the vertical tube 73 supports the hinge plate 11, so that the two ends of the hinge plate 11 can be hinged to each other with the vertical tube 73, and the threaded through hole is adapted to the long screw 12.

[0045] like Figure 1-Figure 3 As shown, the return spring 10 is arranged inside the convex groove 53 and contacts the movable block 7;

[0046] A hinged plate 11, which is hinged to the movable block 7, and the hinged plate 11 is hinged to the vertical pipe 72;

[0047] a long screw 12 extending to the interior of the movable block 7 and being threadedly connected to the movable block 7; the long screw 12 passes through the vertical pipe 72 and is threadedly connected to the threaded through hole;

[0048] Based on the above, the reset spring 10 causes the movable part to undergo elastic deformation after movement, thereby generating elastic force, so that the movable part can be pushed to reset when the external force disappears. The hinge plate 11 allows the angle of the movable part to change after displacement, and enables the hinge plate 11 to clamp the cylindrical metal workpiece, while the long screw 12 serves to fix the position of the movable part.

[0049] In actual use of this embodiment, a cylindrical metal workpiece is placed on the surface of a placing table, and the servo motor 3 is powered to drive the threaded rod 4 to rotate, so that the clamps move toward each other through thread transmission. During the movement, the moving part in the middle position (i.e., the adjacent part of the two hinged plates 11) first contacts the metal workpiece.

[0050] The clamp continues to move under the drive of the threaded rod 4. At this time, the moving part in contact with the metal part does not move. The moving part at this position moves relative to the moving frame 5. In this process, the return spring 10 is compressed and drives the moving parts on both sides to approach the metal part through the hinge plate 11 and contact the surface of the metal part. At this time, the angle between the hinge plates 11 also changes.

[0051] When the hinge plate 11 contacts the surface of the metal part, an interaction force is generated to clamp and fix the metal part. At this time, the servo motor 3 stops working and the long screw 12 is tightened, so that the long screw 12 moves downward and fits tightly with the bottom wall of the convex groove 53, thereby achieving the effect of fixing the position of the moving part.

[0052] The clamping fixture can adjust itself according to the diameter of the cylindrical metal workpiece through the cooperation between the moving part and the hinged plate. There is no need to purchase clamps of different sizes, which reduces the cost of purchasing clamps. The cylindrical metal workpiece is clamped and fixed by the hinged plate. Since the hinged plate 11 is provided, the force points when the cylindrical metal workpiece is fixed are increased, which not only increases the stability of the fixation, but also makes the cylindrical metal workpiece less likely to deform under the premise of the same force.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cylindrical metal workpiece clamping tool, characterized in that: include: An adjustment frame, comprising a fixing frame (1), a guide groove (2), a servo motor (3) and a threaded rod (4); The clamp comprises a moving frame (5), a blocking block (6), a moving part, a return spring (10), a hinge plate (11) and a long screw (12), wherein: A movable frame (5) which is threadedly connected to the threaded rod (4) and comprises a convex groove (53); A blocking block (6) is arranged inside the convex groove (53) by means of screws; A moving part, which is arranged inside the convex groove (53) and comprises a movable block (7), a mounting sheet (8) and a ball (9); A return spring (10), which is arranged inside the convex groove (53) and contacts the movable block (7); A hinge plate (11) hingedly connected to the movable block (7); A long screw (12) extends into the interior of the movable block (7) and is threadedly connected to the movable block (7).

2. The cylindrical metal workpiece clamping tool according to claim 1, characterized in that: The upper surface of the fixing frame (1) is provided with a guide groove (2) and a placement platform, the interior of the fixing frame (1) is provided with a threaded rod (4) penetrating the guide groove (2), one end of the fixing frame (1) is provided with a servo motor (3) whose output shaft is connected to the threaded rod (4), and the placement platform is provided between the two guide grooves (2).

3. The cylindrical metal workpiece clamping tool according to claim 1, characterized in that: The surface of the threaded rod (4) is provided with two sections of threads, and the directions of the two sections of threads are opposite.

4. The cylindrical metal workpiece clamping tool according to claim 3, characterized in that: The movable frame (5) comprises a threaded movable plate (51), and the two threaded movable plates (51) are respectively adapted to the two sections of thread.

5. The cylindrical metal workpiece clamping tool according to claim 4, characterized in that: A T-shaped plate (52) is arranged at the top of the threaded movable plate (51), and convex grooves (53) are arranged at three ends of the T-shaped plate (52). A threaded positioning hole (54) is arranged on the bottom wall of the convex groove (53), and a blocking block (6) is arranged inside the convex groove (53) by means of screws.

6. The cylindrical metal workpiece clamping tool according to claim 5, characterized in that: The blocking block (6) comprises a first convex block (61), a screw mounting hole (63) is provided at the top of the first convex block (61), a baffle (62) is provided on one side of the first convex block (61), and the baffle (62) extends to the outside of the convex groove (53).

7. The cylindrical metal workpiece clamping tool according to claim 1, characterized in that: The movable block (7) comprises a second convex block (71), two sides of the second convex block (71) are provided with hemispherical grooves (73), the top of the second convex block (71) is provided with a vertical tube (72) and a threaded through hole, and the vertical tube (72) is connected to the threaded through hole.

8. The cylindrical metal workpiece clamping tool according to claim 7, characterized in that: The mounting plate (8) comprises a U-shaped plate (81), the bottom end and side wall of the U-shaped plate (81) are both provided with arc-shaped holes (82), a ball (9) is provided between the arc-shaped hole (82) and the hemispherical groove (73), and the bottom end of the U-shaped plate (81) is provided with a through hole (83).

9. The cylindrical metal workpiece clamping tool according to claim 7, characterized in that: The hinge plate (11) and the vertical pipe (72) are hinged to each other, and the long screw (12) passes through the vertical pipe (72) and is threadedly connected to the threaded through hole.

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