Turnover clamp for machining

Abstract

The utility model discloses a turning clamp for machining, which comprises a base, a pair of supporting seats is arranged on the base, the opposite surfaces of the supporting seats are respectively provided with a turntable, and the turntables are respectively and rotatably arranged on the corresponding supporting seats through a rotating shaft; wherein one group of rotating shafts is connected with a driving mechanism, the two groups of rotating discs are connected together through a connecting plate, and a clamping mechanism capable of fixing a workpiece is arranged on the connecting plate. According to the utility model, the inclined angle of the workpiece can be quickly and accurately adjusted in the machining process, and the machining quality and the machining efficiency are improved while the machining requirements of the workpiece are met; and secondly, in the machining process, clamping releasing of the machined workpiece and clamping of the to-be-machined workpiece are conducted synchronously, or two sets of workpieces are clamped at the same time, and the machining efficiency is further improved.

Description

Technical Field

[0001] This utility model belongs to the field of machining technology, and specifically relates to a machining flipping fixture. Background Technology

[0002] In short, a machining fixture is a piece of equipment specifically designed and manufactured for the purpose of accurately positioning and reliably clamping a workpiece during machining operations such as cutting, milling, drilling, and grinding. The main function of a fixture is to ensure the positional accuracy of the workpiece during machining, preventing it from moving or deforming due to cutting forces, gravity, or other external forces, thereby ensuring that the machined parts meet design requirements.

[0003] During machining, it is often necessary to set a certain tilt angle for the workpiece to meet machining requirements. Currently, wedges of different angles are commonly used to achieve different tilt angles. However, this method not only fails to allow for continuous adjustment of different tilt angles, but also is time-consuming and labor-intensive, severely impacting machining efficiency. Therefore, it is necessary to design a machining flipping fixture to effectively solve the aforementioned technical problems. Utility Model Content

[0004] In order to solve the problems existing in the prior art, this utility model aims to provide a machining flipping fixture, which can clamp the workpiece while adjusting the angle of the workpiece, thereby improving the machining quality and machining efficiency.

[0005] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0006] A machining flipping fixture includes a base with a pair of support seats on the base. A turntable is respectively disposed on the opposite surface of the support seats. The turntables are rotatably disposed on the corresponding support seats via a rotating shaft. One set of the rotating shafts is connected to a driving mechanism, and the two sets of turntables are connected together by a connecting plate. The connecting plate is provided with a clamping mechanism for fixing the workpiece.

[0007] Furthermore, each support base includes a lower support fixedly connected to the base and an upper support disposed on the lower support; the turntable is rotatably disposed on the corresponding upper support via the rotating shaft.

[0008] Furthermore, a limiting block is provided between the lower support and the upper support.

[0009] Furthermore, a ring of graduations is engraved on the side wall of one of the sets of turntables, and an arrow is provided on the upper support on which the turntable with the graduations is mounted.

[0010] Furthermore, the clamping mechanism includes a pair of bearing blocks, a movable clamping plate disposed between the pair of bearing blocks, and a fixed clamping block disposed at each end of the pair of bearing blocks. A rotatable lead screw is disposed between the pair of fixed clamping blocks. While the lead screw passes through the movable clamping plate, one end of the lead screw is connected to a first drive motor through a synchronous pulley assembly.

[0011] Furthermore, the clamping mechanism includes a pair of bearing blocks, a pair of movable clamping plates between the pair of bearing blocks, and a fixed clamping block at each end of the pair of bearing blocks. A rotatable lead screw is provided between the pair of fixed clamping blocks. While the lead screw passes through the pair of movable clamping plates, one end of the lead screw is connected to a first drive motor through a synchronous pulley assembly.

[0012] Furthermore, the left and right halves of the lead screw have opposite thread directions, and each half is provided with a movable clamping plate.

[0013] Furthermore, the clamping mechanism also includes a pair of linear guides, which are respectively disposed at both ends of the movable clamping plate, and the direction of the pair of linear guides is parallel to the lead screw.

[0014] Furthermore, the connecting plate is provided with a positioning groove.

[0015] Furthermore, the main body of the drive mechanism is a second drive motor, which is connected to the corresponding rotating shaft via a coupling.

[0016] The beneficial effects of this utility model are as follows: This utility model realizes rapid and accurate adjustment of the workpiece tilt angle during the processing, which meets the processing requirements of the workpiece while improving the processing quality and processing efficiency; secondly, this application realizes that during the processing, the unclamping of the completed workpiece and the clamping of the workpiece to be processed are carried out simultaneously, or two sets of workpieces are clamped at the same time, which further improves the processing efficiency.

[0017] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the clamp of this utility model;

[0020] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 This is a cross-sectional view of the first embodiment of the clamp of this utility model;

[0022] Figure 4 This is a schematic diagram of the installation of the first embodiment of the clamping mechanism of this utility model;

[0023] Figure 5 This is a schematic diagram of the first embodiment of the clamping mechanism of this utility model;

[0024] Figure 6 This is a schematic diagram of the connecting plate structure of this utility model;

[0025] Figure 7 This is a schematic diagram of the installation of the second embodiment of the clamping mechanism of this utility model;

[0026] Figure 8 This is a partial schematic diagram of the lead screw in the second embodiment of this utility model.

[0027] The following are the labels in the diagram: 1. Base; 2. Support; 3. Turntable; 4. Rotating shaft; 5. Drive mechanism; 6. Connecting plate; 7. Clamping mechanism; 21. Lower support; 22. Upper support; 23. Limiting block; 31. Scale; 51. Second drive motor; 52. Coupling; 71. Bearing block; 72. Movable clamping plate; 73. Fixed clamping block; 74. Lead screw; 75. Synchronous belt pulley assembly; 76. First drive motor; 77. Linear guide rail; 221. Arrow. Detailed Implementation

[0028] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that all directional indicators (such as up, down, left, right, front, back, upper end, lower end, top, bottom, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0030] Example 1

[0031] See Figure 1 and Figure 3As shown, a machining flipping fixture includes a base 1, on which a pair of support seats 2 are provided. A turntable 3 is respectively provided on the opposite surface of the support seats 2. The turntables 3 are rotatably mounted on the corresponding support seats 2 via a rotating shaft 4. One set of the rotating shafts 4 is connected to a driving mechanism 5, and the two sets of turntables 3 are connected together by a connecting plate 6. The connecting plate 6 is provided with a clamping mechanism 7 for fixing the workpiece.

[0032] Further, see Figure 3 As shown, in this embodiment, each support base 2 includes a lower support 21 and an upper support 22. During installation, the lower support 21 is locked to the base 1 by corresponding locking bolts, and the upper support 22 is locked to the lower support 21 by corresponding locking bolts. In order to position the upper support 22 and the lower support 21 and to prevent them from moving around after being connected, a limiting block 23 is provided between the lower support 21 and the upper support 22. The turntable 3 is rotatably mounted on the corresponding upper support 22 via the rotating shaft 4.

[0033] Further, see Figure 2 As shown, in this embodiment, a scale 31 is engraved on the side wall of one of the turntables 3, and an arrow 221 is provided on the upper support 22 on which the turntable 3 is engraved with the scale 31. During adjustment, the angle of rotation of the turntable 3 can be precisely controlled by the cooperation of the arrow 221 and the scale 31, thereby achieving precise control of the tilt angle of the workpiece clamped on the clamping mechanism 7, thereby improving the processing quality, increasing the adjustment rate, and thus improving the processing efficiency.

[0034] Further, see Figure 4-5 As shown, in this embodiment, the clamping mechanism 7 includes a pair of bearing blocks 71, a movable clamping plate 72 is disposed between the pair of bearing blocks 71, and a fixed clamping block 73 is disposed at each end of the pair of bearing blocks 71. A rotatable lead screw 74 is disposed between the pair of fixed clamping blocks 73. While the lead screw 74 passes through the movable clamping plate 72, one end of the lead screw 74 is connected to a first drive motor 76 through a synchronous pulley assembly 75. The first drive motor 76 is a servo motor.

[0035] During installation, a pair of bearing blocks 71 and a pair of fixed clamping blocks 73 are fixed to the upper surface of the connecting plate 6, while the first drive motor 76 is fixed to the lower surface of the connecting plate 6 via a corresponding motor bracket. Before clamping, it should be noted that in this embodiment, the movable clamping plate 72 can clamp the workpiece by cooperating with any set of fixed clamping blocks 73. During clamping, after the workpiece is placed on the pair of bearing blocks 71, the first drive motor 76 drives the lead screw 74 to rotate via the synchronous pulley assembly 75, thereby... The movable clamping plate 72 is driven to move along the lead screw 74, thereby clamping the workpiece between the movable clamping plate 72 and the fixed clamping block 73. The direction of movement of the movable clamping plate 72, or which set of fixed clamping blocks 73 the movable clamping plate 72 engages with, is controlled by the rotation direction of the lead screw 74 through the first drive motor 76. With the above arrangement, it is possible to release one set of finished workpieces from clamping while clamping another set of workpieces to be processed during the processing, thereby improving processing efficiency.

[0036] Further details can be found by referring to [link / reference]. Figure 4-5 As shown, in this embodiment, to ensure that the movable clamping plate 72 remains stable during movement and avoids shaking or deviation, the clamping mechanism 7 further includes a pair of linear guide rails 77. The pair of linear guide rails 77 are respectively disposed at both ends of the movable clamping plate 72, and the direction of the pair of linear guide rails 77 is parallel to the lead screw 74. During installation, the guide rails of the pair of linear guide rails 77 are fixed on the connecting plate 6, and the slide of the linear guide rail 77 is connected to the movable clamping plate 72 on the corresponding side. During clamping, the movable clamping plate 72 moves back and forth along the pair of linear guide rails 77 under the drive of the lead screw 74.

[0037] Further, see Figure 6 As shown, in this embodiment, in order to improve the accuracy and stability of the bearing block 71, the fixed clamping block 73 and the linear guide rail 77 in the clamping mechanism 7 with the connecting plate 6, the connecting plate 6 is provided with a positioning groove 61 for positioning the bearing block 71, the fixed clamping block 73 and the linear guide rail.

[0038] Further, see Figure 3 As shown, in this embodiment, the main body of the drive mechanism 5 is a second drive motor 51. After the second drive motor 51 is fixed on the upper support 22 by a corresponding bracket, the second drive motor 51 is connected to the corresponding rotating shaft 4 by a coupling 52; the second drive motor 51 is a servo motor.

[0039] Example 2

[0040] See Figure 7-8 As shown, unlike Embodiment 1, in the clamping mechanism 7, a pair of movable clamping plates 72 are provided between a pair of bearing blocks 71; and the left and right halves of the lead screw 74 have opposite thread directions. After the lead screw 74 passes through the pair of movable clamping plates 72, a movable clamping plate 72 is respectively provided on the left and right halves of the lead screw 74. During driving, the first drive motor 76 drives the lead screw 74 to rotate through the synchronous belt pulley assembly 75, thereby driving the pair of movable clamping plates 72 to move closer or further away. During clamping, in this embodiment, by moving the pair of movable clamping plates 72 further away, the pair of movable clamping plates 72 cooperate with the fixed clamping block 73 on their corresponding sides to clamp two sets of workpieces simultaneously, effectively improving processing efficiency. It should be noted that the above-mentioned simultaneous clamping of two sets of workpieces is only one implementation method and is not intended to limit the scope of this application. In actual use, the pair of movable clamping plates 72 can also be controlled to move closer to achieve workpiece clamping operation through the pair of movable clamping plates 72.

[0041] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A machining flipping fixture, characterized in that: Includes a base (1), on which a pair of support seats (2) are provided. On the opposite surfaces of the support seats (2), a turntable (3) is provided. The turntables (3) are rotatably mounted on the corresponding support seats (2) via a rotating shaft (4). One set of the rotating shafts (4) is connected to a driving mechanism (5), and the two sets of turntables (3) are connected together by a connecting plate (6). The connecting plate (6) is provided with a clamping mechanism (7) for fixing the workpiece.

2. The machining flipping fixture according to claim 1, characterized in that: Each support base (2) includes a lower support (21) fixedly connected to the base (1) and an upper support (22) disposed on the lower support (21); the turntable (3) is rotatably disposed on the corresponding upper support (22) via the rotating shaft (4).

3. The machining flipping fixture according to claim 2, characterized in that: A limiting block (23) is provided between the lower support (21) and the upper support (22).

4. The machining flipping fixture according to claim 2, characterized in that: One of the turntables (3) has a ring of scale (31) engraved on its side wall, and an arrow (221) is provided on the upper support (22) on which the turntable (3) with the scale (31) is mounted.

5. The machining flipping fixture according to claim 1, characterized in that: The clamping mechanism (7) includes a pair of bearing blocks (71), a movable clamping plate (72) is provided between the pair of bearing blocks (71), and a fixed clamping block (73) is provided at both ends of the pair of bearing blocks (71). A rotatable lead screw (74) is provided between the pair of fixed clamping blocks (73). While the lead screw (74) passes through the movable clamping plate (72), one end of the lead screw (74) is connected to a first drive motor (76) through a synchronous pulley assembly (75).

6. The machining flipping fixture according to claim 1, characterized in that: The clamping mechanism (7) includes a pair of bearing blocks (71), a pair of movable clamping plates (72) between the pair of bearing blocks (71), and a fixed clamping block (73) at each end of the pair of bearing blocks (71). A rotatable lead screw (74) is provided between the pair of fixed clamping blocks (73). While the lead screw (74) passes through the pair of movable clamping plates (72), one end of the lead screw (74) is connected to a first drive motor (76) through a synchronous pulley assembly (75).

7. The machining flipping fixture according to claim 6, characterized in that: The screw (74) has opposite thread directions on its left and right halves, and each half is provided with a movable clamping plate (72).

8. The machining flipping fixture according to claim 5 or 6, characterized in that: The clamping mechanism (7) further includes a pair of linear guides (77), which are respectively disposed at both ends of the movable clamping plate (72), and the direction of the pair of linear guides (77) is parallel to the lead screw (74).

9. The machining flipping fixture according to claim 1, characterized in that: The connecting plate (6) is provided with a positioning groove (61).

10. The machining flipping fixture according to claim 1, characterized in that: The main body of the drive mechanism (5) is a second drive motor (51), which is connected to the corresponding rotating shaft (4) through a coupling (52).

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