Cross shaft machining clamp

Abstract

The utility model discloses a cross axle processing technology field's cross axle processing clamp, the utility model discloses a processing seat and upper clamping lever, and the four corners place fixed connection of processing seat top is limited to the block, and the V -shaped groove is formed between two two limit blocks, and the bottom clamping lever is slidably arranged in the inside of processing seat, the upper clamping lever is driven and can move up and down through the upper cylinder, and the upper clamping lever and bottom clamping lever are held together and keep in the top of processing seat, the V -shaped groove between limit block is used for limiting the axle end of workpiece, and the inside fixed of limit block is equipped with the lead -in slope, and the lead -in slope is used to make workpiece center clamping, the utility model discloses can realize the center clamping fixing of cross axle workpiece, and realize the machining of four -sided axle piece simultaneously, can jacking blanking, realizes automatic production.

Description

Technical Field

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

[0002] A cross shaft is a workpiece with shafts on all four sides, playing a very important role in the transmission system. During processing, the shafts on all four sides need to be processed accordingly, such as chamfering and grooving. However, existing clamping tools usually require clamping one shaft to fix the workpiece, thus only one shaft can be processed. This results in the need to repeatedly adjust the direction and clamp the workpiece, which greatly reduces production efficiency and automation.

[0003] Based on this, the present invention designs a cross shaft machining fixture to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a cross shaft machining fixture to solve the problem mentioned in the background art that the clamping tools in the prior art usually need to clamp a shaft to fix the workpiece, thus only one shaft can be processed, which leads to the need to repeatedly adjust the direction and clamp the workpiece, greatly reducing the production efficiency and automation level.

[0005] To achieve the above objectives, the present invention provides the following technical solution: including a processing base and an upper clamping rod, wherein limiting blocks are fixedly connected at the four corners of the top of the processing base, and a V-shaped groove is formed between each pair of limiting blocks, and a bottom clamping rod is slidably provided inside the processing base;

[0006] The upper clamping rod can move up and down driven by the upper cylinder, and the upper clamping rod and the bottom clamping rod together clamp the workpiece and keep it on the top of the processing seat;

[0007] The V-shaped groove between the limiting blocks is used to limit the shaft end of the workpiece. An inlet inclined surface is fixedly provided on the inner side of the limiting block, and the inlet inclined surface is used to clamp the workpiece in the center.

[0008] As a further embodiment of this utility model, a raised platform is fixedly connected to the bottom of the processing base, and an installation disc is fixedly connected to the bottom of the raised platform.

[0009] As a further embodiment of this utility model, the bottom clamping rod can be moved up and down by a bottom cylinder, and the bottom cylinder is installed inside the raised platform.

[0010] As a further embodiment of this utility model, it also includes an intermediate unloading plate, wherein a through groove matching the shape of the workpiece is provided in the middle of the intermediate unloading plate, and the intermediate unloading plate is located between the bottom clamping rod and the upper clamping rod and the through groove is directly opposite the processing seat.

[0011] As a further embodiment of this utility model, the bottom end of the upper clamping rod is provided with a receiving groove and a circular hole slide. A double-headed column is elastically connected in the receiving groove, and a contact rod is slidably connected in the circular hole slide. A triangular block is slidably provided in the receiving groove. The upward movement of the contact rod causes the double-headed column to move downward through the triangular block.

[0012] As a further embodiment of this utility model, a telescopic cylinder is installed at the bottom of the receiving groove, a return spring is fixedly connected inside the telescopic cylinder, and the movable end of the telescopic cylinder is fixedly connected to the top of the double-headed column.

[0013] As a further embodiment of this utility model, an upper slide rail is fixedly connected to the top of the receiving groove, the triangular block is slidably connected in the upper slide rail, the triangular block is located at the four corners of the receiving groove, a limiting groove is opened on the side wall of the contact rod, and a slide bar is fixedly connected in the circular hole slide track, the slide bar is located in the limiting groove and the two slide in cooperation.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This device enables the centering, clamping, and fixing of cross-shaped workpieces, and allows for the simultaneous processing of four-sided shafts. It also features lifting and unloading capabilities, enabling automated production.

[0016] While the workpiece is being clamped, the position of the shaft is restricted by the V-groove, thereby fixing the shaft during machining to prevent the workpiece from rotating as a whole. At the same time, the V-groove restricts the height of the workpiece being clamped, so that the shaft part can be aligned with the machining head on the machine tool and can be directly machined without further adjustment. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the overall structure of this utility model from an elevation perspective;

[0019] Figure 3 This is a schematic diagram of the overall side view of the half-section structure of this utility model;

[0020] Figure 4 This is a partially enlarged cross-sectional schematic diagram of the upper clamping rod of this utility model;

[0021] Figure 5 This is a partially enlarged cross-sectional view of the processing base of this utility model;

[0022] Figure 6 This is a schematic diagram of the cross shaft workpiece to which this utility model applies.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Machining base; 2. Upper clamping rod; 3. Limiting block; 4. V-groove; 5. Bottom clamping rod; 6. Upper cylinder; 7. Guide slope; 8. Elevating platform; 9. Mounting disc; 10. Bottom cylinder; 11. Middle unloading plate; 12. Receiving groove; 13. Double-headed column; 14. Triangular block; 15. Telescopic cylinder; 16. Return spring; 17. Upper slide rail; 18. Contact rod; 19. Limiting groove; 20. Through groove. Detailed Implementation

[0025] Please see Figure 1-6 The working principle of the technical solution provided by this utility model is as follows: When this device is used, the workpiece is received by the middle unloading plate 11. At the same time, the bottom clamping rod 5 extends upward and is located at the bottom of the middle unloading plate 11. When the workpiece falls through the groove 20, it lands directly on the top of the bottom clamping rod 5. The upper clamping rod 2 moves downward and extends. The workpiece is clamped between the upper clamping rod 2 and the bottom clamping rod 5. After clamping and fixing, the upper clamping rod 2 and the bottom clamping rod 5 move downward at the same time, causing the clamped workpiece to fall onto the processing seat 1. The block part of the workpiece is clamped by the upper clamping rod 2 and the bottom clamping rod 5 at the same time. The shaft part of the workpiece is located at the V-groove 4. While the workpiece is being clamped, the position of the shaft is restricted by the V-groove 4, thereby fixing the shaft during processing to prevent the workpiece from rotating as a whole. At the same time, the height of the workpiece being clamped is restricted by the V-groove 4, so that the shaft part can be aligned with the processing head on the machine tool and can be processed directly without further adjustment.

[0026] As the workpiece moves downwards with the upper clamping rod 2 and the bottom clamping rod 5 into the space between the limiting blocks 3, the inclined plane 7 contacts the four corners of the block in the middle of the workpiece, which can adjust the overall placement of the workpiece in the center, so that the four shafts can be processed symmetrically at the same time.

[0027] When the upper clamping rod 2 moves downward to clamp the workpiece, the contact rod 19 first contacts the top of the workpiece. As the upper clamping rod 2 continues to move downward, it pushes the contact rod 18 upward into the circular hole slide. At the same time, the contact rod 18 presses the triangular block 14 to the side, causing the triangular block 14 to move to the middle of the upper clamping rod 2. This, in turn, presses down the double-headed column 13 through the triangular block 14. The double-headed column 13 moves down and extends into the middle groove of the workpiece block. The workpiece is centered and clamped by the chamfered edge at the bottom of the double-headed column 13. Before the rod 2 and the bottom clamping rod 5 are fully clamped, and the workpiece is still in the passage groove 20, it is the best time to adjust the center position of the workpiece. The workpiece can move slightly without falling off. When the contact rod 18 is fully pushed in and retracted, the double-headed column 13 also reaches its limit position. At this time, the bottom plane of the upper clamping rod 2 is clamped and fixed with the upper surface of the workpiece, and the bottom end of the double-headed column 13 is located in the circular groove in the middle of the workpiece, realizing the effect of double-plane clamping through the plane of the upper clamping rod 2 and the top surface of the bottom clamping rod 5.

[0028] After processing is completed, the upper clamping rod 2 and the bottom clamping rod 5 remain in the clamping state and move upward synchronously to move the workpiece above the middle unloading plate 11. The upper clamping rod 2 moves upward and retracts, and the workpiece is pushed out of the through slot 20 by the external push rod, thereby realizing automatic unloading. Then the bottom clamping rod 5 retracts to a position flush with the bottom of the middle unloading plate 11 to wait for the next workpiece to fall in, thereby realizing continuous processing.

[0029] When the upper clamping rod 2 moves upward and retracts, the contact rod 18 falls off by itself, and the double-headed column 13 is pulled back to its original position by the return spring 16, and the triangular block 14 is pushed outward and repositioned on the side of the contact rod 18, thus realizing the next cycle of use.

[0030] This device enables the centering, clamping, and fixing of cross-shaped workpieces, and allows for the simultaneous processing of four-sided shafts. It also features lifting and unloading capabilities, enabling automated production.

Claims

1. A cross-shaft machining fixture, characterized in that: It includes a processing base (1) and an upper clamping rod (2). The processing base (1) has four fixedly connected limit blocks (3) at the top corners, and a V-shaped groove (4) is formed between each pair of limit blocks (3). The processing base (1) has a bottom clamping rod (5) that slides inside. The upper clamping rod (2) can move up and down by being driven by the upper cylinder (6). The upper clamping rod (2) and the bottom clamping rod (5) together clamp the workpiece and keep it on top of the processing seat (1). The V-shaped groove (4) between the limiting blocks (3) is used to limit the shaft end of the workpiece. The inner side of the limiting block (3) is fixed with an inlet inclined surface (7), which is used to clamp the workpiece in the center.

2. The cross shaft machining fixture according to claim 1, characterized in that: The bottom of the processing base (1) is fixedly connected to a raised platform (8), and the bottom of the raised platform (8) is fixedly connected to an installation disc (9).

3. The cross shaft machining fixture according to claim 1, characterized in that: The bottom clamp (5) can move up and down by being driven by the bottom cylinder (10), which is installed inside the raised platform (8).

4. A cross-shaft machining fixture according to claim 1, characterized in that: It also includes an intermediate unloading plate (11), in which a through groove (20) matching the shape of the workpiece is opened in the middle. The intermediate unloading plate (11) is located between the bottom clamping rod (5) and the upper clamping rod (2), and the through groove (20) is directly opposite the processing seat (1).

5. A cross-shaft machining fixture according to claim 1, characterized in that: The upper clamping rod (2) has a receiving groove (12) and a round hole slide inside its bottom end. A double-headed column (13) is elastically connected in the receiving groove (12). A contact rod (18) is slidably connected in the round hole slide. A triangular block (14) is slidably provided in the receiving groove (12). The contact rod (18) moves upward and passes through the triangular block (14) to make the double-headed column (13) move downward.

6. A cross shaft machining fixture according to claim 5, characterized in that: A telescopic cylinder (15) is installed at the bottom of the receiving groove (12). A return spring (16) is fixedly connected inside the telescopic cylinder (15). The movable end of the telescopic cylinder (15) is fixedly connected to the top of the double-headed column (13).

7. A cross shaft machining fixture according to claim 5, characterized in that: The top of the receiving groove (12) is fixedly connected to an upper slide rail (17), the triangular block (14) is slidably connected in the upper slide rail (17), the triangular block (14) is located at the four corners of the receiving groove (12), the side wall of the contact rod (18) is provided with a limiting groove (19), and a slide bar is fixedly connected in the round hole slide, the slide bar is located in the limiting groove (19) and the two slide together.

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