Metal part machining and positioning tool

Abstract

The utility model relates to the field of positioning tools, in particular to a metal part machining positioning tool which comprises a fixing frame, a motor is fixedly installed on the bottom face of the fixing frame, a supporting plate is fixedly connected to the upper surface of the fixing frame, a first bevel gear is fixedly connected to the output end of the motor, and the first bevel gear is driven to rotate through starting of the motor; first bevel gears are meshed with four second bevel gears, so that the four second bevel gears can simultaneously drive corresponding first screw rods to rotate, the rotation of the first screw rods can drive corresponding U-shaped connecting plates to move along the corresponding first screw rods, and at the moment, the four U-shaped connecting plates can simultaneously move towards the supporting plate in the opposite direction or the reverse direction; and in the process, the springs can be compressed, the connecting rods can horizontally slide along the corresponding U-shaped connecting plates, and then the effect that the device can clamp the workpieces in different shapes through rotation of the first screw rods is achieved.

Description

Technical Field

[0001] This utility model relates to the field of positioning tooling technology, specifically a positioning tooling for metal parts processing. Background Technology

[0002] When machining metal parts, positioning fixtures are needed to ensure accurate positioning and stability of the metal parts during the machining process, so as to prevent the machining accuracy of the metal parts from being reduced due to positional deviation, thereby affecting the quality of the workpiece.

[0003] A search revealed a positioning fixture for metal parts processing disclosed in Chinese Patent Publication No. CN221415775U. This fixture uses two sets of opposing first and second clamping members to accommodate various part shapes and sizes, offering a wide range of applications and significantly reducing costs. However, this device cannot clamp workpieces of different shapes when the size is smaller than the distance between the first and second clamping members. This limitation makes it prone to unstable workpiece clamping, affecting subsequent processing.

[0004] Therefore, a new solution is needed to address this problem. Utility Model Content

[0005] The aforementioned background technology addresses the problem that existing technologies cannot clamp workpieces of different shapes.

[0006] This utility model discloses a metal parts processing positioning fixture, including a fixed frame. A motor is fixedly installed on the bottom surface of the fixed frame, and a support plate is fixedly connected to the upper surface of the fixed frame. A first bevel gear is fixedly connected to the output end of the motor. Four second bevel gears mesh with the outer surface of the first bevel gear. A first screw is fixedly connected to the side of each second bevel gear away from the first bevel gear. The outer surface of each first screw is rotatably connected to the fixed frame. A U-shaped connecting plate is threadedly connected to the outer surface of each first screw. A connecting rod is slidably connected to the inner wall of each U-shaped connecting plate. A first clamping plate is fixedly connected to the end of each connecting rod near the support plate.

[0007] Furthermore, each of the connecting rods has a spring sleeved on its outer surface. The end of each spring near the corresponding first clamping plate is fixedly connected to the corresponding first clamping plate, and the end of each spring away from the corresponding first clamping plate is fixedly connected to the corresponding U-shaped connecting plate.

[0008] Furthermore, each of the U-shaped connecting plates has two first sliding grooves on its outer surface, and a number of limiting plates are fixedly connected to the upper surface of the fixing frame, with the outer surface of each limiting plate slidably connected to the corresponding first sliding groove.

[0009] Furthermore, each of the U-shaped connecting plates has a T-shaped groove on its upper surface, and the inner wall of each T-shaped groove is slidably connected to the corresponding connecting rod.

[0010] Furthermore, the inner wall of the fixing frame is rotatably connected with four second screws, and the end of each second screw away from the fixing frame is fixedly connected with a first rotating wheel. The outer surface of each second screw is threaded with a connecting frame, and the outer surface of each connecting frame is slidably connected to the fixing frame.

[0011] Furthermore, a third screw is rotatably connected to the inner wall of each of the connecting frames, and a second wheel is fixedly connected to the top end of each of the third screws.

[0012] Furthermore, each of the third screws has a second clamping plate threadedly connected to its outer surface, and the outer surface of each second clamping plate is slidably connected to the corresponding connecting frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model comprises a motor, a first bevel gear, a second bevel gear, a first screw, a U-shaped connecting plate, a connecting rod, a first clamping plate, and a spring. The motor drives the first bevel gear to rotate, and the meshing between the first bevel gear and the four second bevel gears allows the four second bevel gears to simultaneously drive the corresponding first screw to rotate. The rotation of the first screw causes the corresponding U-shaped connecting plate to move along the corresponding first screw. At this time, the four U-shaped connecting plates move simultaneously toward or in the opposite direction of the support plate, thereby clamping the workpiece through the first clamping plate. During this process, the spring is compressed, and the connecting rod slides horizontally along the corresponding U-shaped connecting plate, thus achieving the effect of clamping workpieces of different shapes through the rotation of the first screw.

[0015] 2. This utility model, by setting up components such as a second clamping plate, a connecting frame, a third screw, a first rotating wheel, a second rotating wheel, and a second screw, achieves the following: by rotating the first rotating wheel, the first rotating wheel drives the corresponding second screw to rotate. At this time, the rotation of the second screw causes the corresponding connecting frame to slide horizontally along the fixed frame. Adjustments are made according to the different shapes of the workpieces. Then, rotating the second rotating wheel causes the corresponding third screw to rotate. The rotation of the third screw causes the corresponding second clamping plate to move vertically along the corresponding connecting frame. Thus, this device can clamp workpieces of different thicknesses by adjusting the position of the second clamping plate. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the first bevel gear structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the connecting frame structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the third screw structure of this utility model.

[0021] In the diagram: 1. Fixing frame; 2. Support plate; 3. Motor; 4. First bevel gear; 5. Second bevel gear; 6. First screw; 7. U-shaped connecting plate; 8. Connecting rod; 9. Spring; 10. First clamping plate; 11. First slide groove; 12. Limiting plate; 13. T-slot; 14. Second screw; 15. First rotating wheel; 16. Connecting frame; 17. Second rotating wheel; 18. Third screw; 19. Second clamping plate. Detailed Implementation

[0022] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in the illustrations in a simple schematic manner.

[0023] Please see Figure 1 , Figure 2 This utility model discloses a metal parts processing positioning fixture, including a fixed frame 1. A motor 3 is fixedly installed on the bottom surface of the fixed frame 1, and a support plate 2 is fixedly connected to the upper surface of the fixed frame 1. The support plate 2 facilitates the placement of workpieces. A first bevel gear 4 is fixedly connected to the output end of the motor 3. The start of the motor 3 will drive the first bevel gear 4 to rotate. Four second bevel gears 5 are meshed on the outer surface of the first bevel gear 4. The four second bevel gears 5 are arranged in four directions of the fixed frame 1. The meshing between the first bevel gear 4 and the corresponding second bevel gear 5 will cause the motor 3 to drive the four second bevel gears 5 to rotate simultaneously when it starts. A first screw 6 is fixedly connected to the side of each second bevel gear 5 away from the first bevel gear 4. The four first screws 6 are arranged in four directions inside the fixed frame 1. When the motor 3 starts, it will drive the four first screws 6 to rotate simultaneously.

[0024] In a preferred embodiment, the outer surface of each first screw 6 is rotatably connected to the fixed frame 1, and a U-shaped connecting plate 7 is threadedly connected to the outer surface of each first screw 6. The rotation of the first screw 6 will drive the corresponding U-shaped connecting plate 7 to move horizontally along the first screw 6. During this process, the four U-shaped connecting plates 7 will move horizontally along the fixed frame 1 towards or in the opposite direction to the support plate 2. A connecting rod 8 is slidably connected to the inner wall of each U-shaped connecting plate 7, and a first clamping plate 10 is fixedly connected to one end of each connecting rod 8 near the support plate 2. Specifically, the connecting rod 8 can slide horizontally along the corresponding U-shaped connecting plate 7, and the horizontal movement of the U-shaped connecting plate 7 pushes the corresponding first clamping plate 10 to clamp workpieces of different shapes.

[0025] like Figure 2 , Figure 3 As shown, each connecting rod 8 has a spring 9 sleeved on its outer surface. The end of each spring 9 near the corresponding first clamping plate 10 is fixedly connected to the corresponding first clamping plate 10, and the end of each spring 9 away from the corresponding first clamping plate 10 is fixedly connected to the corresponding U-shaped connecting plate 7. Specifically, during the process of clamping the workpiece by the horizontal movement of the U-shaped connecting plate 7, the springs 9 in the four directions will be compressed to different degrees during the clamping process of the first clamping plates 10 in different directions for workpieces of different shapes, until the springs 9 in two directions can no longer be compressed. At this time, the first clamping plates 10 in these two directions can stably clamp the workpiece, and the clamping in the other two directions serves as auxiliary clamping.

[0026] In this embodiment, two first sliding grooves 11 are formed on the outer surface of each U-shaped connecting plate 7. Several limiting plates 12 are fixedly connected to the upper surface of the fixing frame 1. The first sliding grooves 11 are set on both sides of the corresponding U-shaped connecting plate 7. The outer surface of each limiting plate 12 is slidably connected to the corresponding first sliding groove 11. Specifically, the setting of the limiting plates 12 ensures that the U-shaped connecting plate 7 will not tilt due to the squeezing force during the horizontal sliding process of the U-shaped connecting plate 7 along the fixing frame 1.

[0027] In this embodiment, a T-slot 13 is provided on the upper surface of each U-shaped connecting plate 7, and the inner wall of each T-slot 13 is slidably connected to the corresponding connecting rod 8. Specifically, the connecting rod 8 wraps around the sliding rod and the T-block, and the T-block can slide horizontally along the corresponding T-slot 13. The T-slot 13 can increase the stability of the horizontal sliding of the connecting rod 8.

[0028] Looking back Figure 3 , Figure 4The inner wall of the fixed frame 1 is rotatably connected to four second screws 14, which are respectively arranged in four directions of the fixed frame 1. Each second screw 14 is fixedly connected to a first rotating wheel 15 at the end away from the fixed frame 1. Specifically, by rotating the first rotating wheel 15, the first rotating wheel 15 will drive the corresponding second screw 14 to start rotating. The rotation of the second screw 14 will drive the corresponding connecting frame 16 to move horizontally along the second screw 14. The outer surface of each second screw 14 is threadedly connected to the connecting frame 16. The outer surface of each connecting frame 16 is slidably connected to the fixed frame 1. Specifically, by rotating the second screw 14, the corresponding connecting frame 16 is driven to slide horizontally. At this time, the connecting frame 16 can be adjusted in position according to workpieces of different sizes.

[0029] In this embodiment, a third screw 18 is rotatably connected to the inner wall of each connecting frame 16. The third screw 18 is perpendicular to the fixed frame 1. A second rotating wheel 17 is fixedly connected to the top of each third screw 18. Specifically, by rotating the second rotating wheel 17, the second rotating wheel 17 will drive the corresponding third screw 18 to rotate within the connecting frame 16.

[0030] In this embodiment, the outer surface of each third screw 18 is threaded with a second clamping plate 19. The rotation of the third screw 18 will drive the corresponding second clamping plate 19 to move vertically along the third screw 18. The outer surface of each second clamping plate 19 is slidably connected to the corresponding connecting frame 16. Specifically, when the second rotating wheel 17 is rotated, the vertical movement of the second clamping plate 19 can clamp and fix workpieces of different thicknesses.

[0031] The above are merely embodiments of this utility model and are not intended to limit the scope of this 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 principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A positioning fixture for machining metal parts, comprising a fixing frame (1), characterized in that: A motor (3) is fixedly installed on the bottom surface of the fixed frame (1). A support plate (2) is fixedly connected to the upper surface of the fixed frame (1). A first bevel gear (4) is fixedly connected to the output end of the motor (3). Four second bevel gears (5) mesh with the outer surface of the first bevel gear (4). A first screw (6) is fixedly connected to the side of each second bevel gear (5) away from the first bevel gear (4). The outer surface of each first screw (6) is rotatably connected to the fixed frame (1). A U-shaped connecting plate (7) is threadedly connected to the outer surface of each first screw (6). A connecting rod (8) is slidably connected to the inner wall of each U-shaped connecting plate (7). A first clamping plate (10) is fixedly connected to the end of each connecting rod (8) near the support plate (2).

2. The metal part machining positioning fixture according to claim 1, characterized in that: Each of the connecting rods (8) has a spring (9) fitted on its outer surface. The end of each spring (9) near the corresponding first clamping plate (10) is fixedly connected to the corresponding first clamping plate (10), and the end of each spring (9) away from the corresponding first clamping plate (10) is fixedly connected to the corresponding U-shaped connecting plate (7).

3. The metal part machining positioning fixture according to claim 2, characterized in that: Two first sliding grooves (11) are provided on the outer surface of each of the U-shaped connecting plates (7). Several limiting plates (12) are fixedly connected to the upper surface of the fixing frame (1). The outer surface of each limiting plate (12) is slidably connected to the corresponding first sliding groove (11).

4. The metal part machining positioning fixture according to claim 3, characterized in that: Each of the U-shaped connecting plates (7) has a T-shaped groove (13) on its upper surface, and the inner wall of each T-shaped groove (13) is slidably connected to the corresponding connecting rod (8).

5. A metal part machining positioning fixture according to claim 3, characterized in that: The inner wall of the fixed frame (1) is rotatably connected with four second screws (14). Each second screw (14) is fixedly connected to a first rotating wheel (15) at the end away from the fixed frame (1). Each second screw (14) is threadedly connected to a connecting frame (16) on its outer surface. The outer surface of each connecting frame (16) is slidably connected to the fixed frame (1).

6. The positioning fixture for machining metal parts according to claim 5, characterized in that: Each of the connecting frames (16) has a third screw (18) rotatably connected to its inner wall, and a second wheel (17) is fixedly connected to the top of each of the third screws (18).

7. A metal part machining positioning fixture according to claim 6, characterized in that: Each of the third screws (18) has a second clamping plate (19) threadedly connected to its outer surface, and the outer surface of each second clamping plate (19) is slidably connected to the corresponding connecting frame (16).

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