Bidirectional cam mechanism for pipe fitting forming

Abstract

The utility model discloses a bidirectional cam mechanism for pipe fitting forming, which comprises a clamp mechanism, the clamp mechanism comprises an upper clamp and a lower clamp which are oppositely arranged, and the opposite surfaces of the upper clamp and the lower clamp are respectively provided with an upper clamping groove and a lower clamping groove; the upper clamp can movably ascend and descend so as to be matched with the lower clamp to clamp a pipe fitting. A pipe fitting machining mechanism is arranged on one side of the clamp mechanism and can machine one end of a pipe fitting. And an unloading cam is arranged on the other side of the clamp mechanism, and when the pipe fitting clamped in the upper clamping groove moves upwards to be connected with the unloading cam, the unloading cam can rotate actively to extrude down the pipe fitting in the upper clamping groove. A limiting piece is arranged between the clamp mechanism and the pipe fitting machining mechanism, a protruding part is arranged on the discharging cam, and the discharging cam can rotate forwards and reversely. When the protruding part rotates forwards along with the discharging cam, one end of the pipe fitting is pushed correspondingly. The protruding part correspondingly extrudes the middle of the pipe fitting when rotating reversely along with the discharging cam. The pipe fitting clamping device can assist in taking down the pipe fitting clamped in the upper clamp.

Description

Technical Field

[0001] This utility model relates to the field of pipe fitting processing technology, and in particular to a bidirectional cam mechanism for pipe fitting forming. Background Technology

[0002] The frame of an electric vehicle is composed of many tubular components, and manufacturing the frame requires processing a large number of these components. One of the processing steps involves expanding the ends of the tubing. Because the expansion process uses opposing clamps to hold the tubing, after expansion, the tubing easily gets stuck in the groove of the upper clamp, requiring workers to manually knock it off, which is quite laborious and needs improvement. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the existing technology, this utility model provides a bidirectional cam mechanism for pipe forming, which can assist in removing the pipe clamped in the upper fixture during the processing.

[0004] Technical Solution: To achieve the above objectives, the present invention provides a bidirectional cam mechanism for pipe forming, comprising a clamping mechanism, which includes an upper clamp and a lower clamp arranged opposite to each other, with an upper clamping groove and a lower clamping groove respectively provided on the opposite surfaces of the upper clamp and the lower clamp; the upper clamp is movable and liftable to cooperate with the lower clamp to clamp the pipe; a pipe processing mechanism is provided on one side of the clamping mechanism, which can process one end of the pipe; a discharge cam is provided on the other side of the clamping mechanism, when the pipe clamped in the upper clamping groove moves up to contact the discharge cam, the discharge cam can actively rotate to squeeze the pipe out of the upper clamping groove.

[0005] Furthermore, there is a limiting member between the clamping mechanism and the pipe processing mechanism, and the limiting member can move and displace; when the limiting member moves to block the opening of the lower clamping groove, it limits the end of the pipe placed in the lower clamping groove.

[0006] Furthermore, the limiting member is connected to the telescopic cylinder, which can drive the limiting member to extend to block the opening of the lower clamping groove.

[0007] Furthermore, a pushing mechanism is provided on the side of the clamping mechanism away from the pipe processing mechanism, which can push the pipe to move until it abuts against the limiting member.

[0008] Furthermore, the pushing mechanism includes the unloading cam, which has a protrusion and can rotate forward and backward; when the unloading cam rotates forward, the protrusion pushes one end of the tube; when the unloading cam rotates backward, the protrusion squeezes the middle of the tube.

[0009] Furthermore, the two sides of the protrusion are an arc-shaped gradient surface and a push tube plane, respectively; when the protrusion rotates forward with the unloading cam, the push tube plane corresponds to one end of the pushed tube; when the protrusion rotates backward with the unloading cam, the arc-shaped gradient surface corresponds to the middle of the extruded tube.

[0010] Furthermore, the unloading cam is mounted on a bracket, and the bracket has a motor that can drive the unloading cam to rotate.

[0011] Furthermore, the unloading cam can be displaced and adjusted on the support to change its position.

[0012] Beneficial effects: The bidirectional cam mechanism for pipe forming of this utility model has the following beneficial effects:

[0013] 1) A discharge cam is provided on one side of the clamping mechanism. When the pipe fitting stuck in the upper clamping groove moves up to connect with the discharge cam, the discharge cam can rotate in the opposite direction to squeeze out the pipe fitting in the upper clamping groove, so as to replace the manual knocking off the pipe fitting stuck in the upper clamp.

[0014] 2) When the pipe fitting is placed into the lower clamping groove, the unloading cam can rotate in the forward direction, pushing the pipe fitting to abut against the limiting part, so as to replace manual pushing of the pipe fitting and save manpower. Attached Figure Description

[0015] Appendix Figure 1 This is a schematic diagram of the unloading cam reversing.

[0016] Appendix Figure 2 This is a schematic diagram of the unloading cam rotating in the forward direction. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] As attached Figures 1 to 2 The bidirectional cam mechanism for forming pipe fittings includes a clamping mechanism, which includes an upper clamp 1 and a lower clamp 2 arranged opposite to each other. The upper clamp 1 and the lower clamp 2 are respectively provided with an upper clamping groove and a lower clamping groove on their opposite surfaces. The upper clamping groove and the lower clamping groove are both semi-circular arc grooves that correspond to the outer contour shape of the pipe fitting 5 to be clamped.

[0019] The lower clamp 2 is fixedly installed, and the upper clamp 1 is connected to the hydraulic cylinder, so that the upper clamp 1 can move up and down to cooperate with the lower clamp 2 to clamp the pipe 5.

[0020] A pipe fitting processing mechanism 6 is provided on one side of the clamping mechanism. The pipe fitting processing mechanism 6 can process one end of the pipe fitting 5. In one embodiment, the pipe fitting processing mechanism 6 is a pipe expanding mechanism. The pipe fitting processing mechanism 6 includes a pipe expanding end head, which is driven to extend and retract by a hydraulic cylinder. When the pipe expanding end head is inserted into the end of the pipe fitting 5, it expands the end of the pipe fitting 5.

[0021] A discharge cam 7 is provided on the other side of the clamping mechanism, meaning that the discharge cam 7 and the pipe processing mechanism 6 are located on opposite sides of the clamping mechanism. During pipe expansion processing, after the pipe 5 is processed, the upper clamp 1 moves upwards to separate from the lower clamp 2, allowing the processed pipe 5 to be removed. However, in actual processing, the pipe 5 often gets stuck in the upper clamping groove of the upper clamp 1, making it difficult to remove and requiring workers to manually knock or pry it off. To address this problem, a discharge cam 7 is provided, as shown in the attached diagram. Figure 1 As shown, when the upper clamp 1 moves upward, the pipe 5 stuck in the upper clamping groove will move up to connect with the unloading cam 7. At this time, the unloading cam 7 can rotate actively, thereby squeezing the pipe 5 out of the upper clamping groove with the help of the cam surface of the unloading cam 7, so as to save manpower.

[0022] A limiting member 8 is located between the clamping mechanism and the pipe fitting processing mechanism 6. The limiting member 8 is movable. When the limiting member 8 moves to block the opening of the lower clamping groove, it limits the end of the pipe fitting 5 placed in the lower clamping groove. When the pipe fitting processing mechanism 6 needs to perform processing, the limiting member 8 moves away from the opening of the lower clamping groove to avoid movement interference.

[0023] In one embodiment, the limiting member 8 is connected to the telescopic cylinder 9. The telescopic cylinder 9 can drive the limiting member 8 to extend to block the opening of the lower clamping groove. The telescopic cylinder 9 can also drive the limiting member 8 to retract so as to move away from the opening of the lower clamping groove.

[0024] A pushing mechanism is provided on the side of the clamping mechanism away from the pipe processing mechanism 6. The pushing mechanism can push the pipe 5 to move to abut against the limiting member 8, eliminating the need for manual pushing of the pipe 5.

[0025] The feeding mechanism includes the unloading cam 7, which has a protrusion and is capable of rotating forward and backward. (See attached image) Figure 2 As shown, the protrusion corresponds to one end of the push tube 5 when the unloading cam 7 rotates clockwise. (See attached diagram) Figure 1 As shown, the protrusion corresponds to the middle part of the extrusion tube 5 when the unloading cam 7 reverses.

[0026] Specifically, the two sides of the protrusion are an arc-shaped gradient surface 3 and a push tube plane 4, respectively. When the protrusion rotates clockwise with the unloading cam 7, the push tube plane 4 corresponds to one end of the push tube 5. When the protrusion rotates counterclockwise with the unloading cam 7, the arc-shaped gradient surface 3 corresponds to the middle of the extrusion tube 5.

[0027] The unloading cam 7 is mounted on a bracket, and the bracket has a motor that can drive the unloading cam 7 to rotate. The unloading cam 7 can be adjusted on the bracket to change its position. When the pipe fitting 5 is placed into the lower clamping groove, the unloading cam 7 is positioned above the end of the pipe fitting 5.

[0028] The working method of this utility model is described by expanding the pipe fitting 5: In the initial state, the upper clamp 1 and the lower clamp 2 are separated. Then, the worker manually puts the pipe fitting 5 into the lower clamp groove. Then, the limiting member 8 moves to the opening of the lower clamp groove, as shown in the attached figure. Figure 2 As shown, the unloading cam 7 rotates forward, and the pusher plane 4 pushes the pipe 5 to abut against the limiting member 8. Then, the unloading cam 7 rotates in reverse at a certain angle, causing the pusher plane 4 to separate from the pipe 5. Next, the limiting member 8 moves away from the slot opening of the lower clamping groove. Then, the upper clamp 1 moves down, and the upper clamp 1 and the lower clamp 2 cooperate to clamp the pipe 5. The pipe processing mechanism 6 expands one end of the pipe 5. After the expansion is completed, the upper clamp 1 moves up to separate from the lower clamp 2. Assuming that the pipe 5 is stuck in the upper clamping groove, the pipe 5 moves up with the upper clamp 1 to connect with the unloading cam 7, and then... Figure 1 As shown, the unloading cam 7 reverses, causing the arc-shaped gradient surface 3 to press against the middle of the pipe 5, thereby causing the pipe 5 to fall out of the upper clamping groove. In addition, when the unloading cam 7 reverses at a faster speed, it can also knock the pipe 5 downwards, making it easier for the pipe 5 to fall out of the upper clamping groove.

[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A bidirectional cam mechanism for tube forming, characterized in that: The clamping mechanism includes an upper clamp (1) and a lower clamp (2) arranged opposite to each other. The upper clamp (1) and the lower clamp (2) are respectively provided with an upper clamping groove and a lower clamping groove on their opposite surfaces. The upper clamp (1) can be moved up and down to cooperate with the lower clamp (2) to clamp the pipe fitting (5). A pipe fitting processing mechanism (6) is provided on one side of the clamping mechanism. The pipe fitting processing mechanism (6) can process one end of the pipe fitting (5). A discharge cam (7) is provided on the other side of the clamping mechanism. When the pipe fitting (5) stuck in the upper clamping groove moves up to connect with the discharge cam (7), the discharge cam (7) can rotate actively and squeeze the pipe fitting (5) out of the upper clamping groove.

2. The bidirectional cam mechanism for tube forming according to claim 1, characterized in that: There is a limiting member (8) between the clamping mechanism and the pipe processing mechanism (6). The limiting member (8) is movable. When the limiting member (8) moves to block the opening of the lower clamping groove, it limits the end of the pipe (5) placed in the lower clamping groove.

3. The bidirectional cam mechanism for tube forming according to claim 2, characterized in that: The limiting member (8) is connected to the telescopic cylinder (9), which can drive the limiting member (8) to extend to block the opening of the lower clamping groove.

4. The bidirectional cam mechanism for tube forming according to claim 2, characterized in that: A pushing mechanism is provided on the side of the clamping mechanism away from the pipe processing mechanism (6). The pushing mechanism can push the pipe (5) to move to abut against the limiting member (8).

5. The bidirectional cam mechanism for tube forming according to claim 4, characterized in that: The feeding mechanism includes the unloading cam (7), which has a protrusion and can rotate forward and backward. When the unloading cam (7) rotates forward, it pushes one end of the tube (5). When the unloading cam (7) rotates backward, it squeezes the middle of the tube (5).

6. The bidirectional cam mechanism for tube forming according to claim 5, characterized in that: The two sides of the protrusion are an arc-shaped gradient surface (3) and a push tube plane (4), respectively; when the protrusion rotates forward with the unloading cam (7), the push tube plane (4) corresponds to one end of the push tube (5); when the protrusion rotates backward with the unloading cam (7), the arc-shaped gradient surface (3) corresponds to the middle of the extrusion tube (5).

7. The bidirectional cam mechanism for tube forming according to claim 6, characterized in that: The unloading cam (7) is mounted on a bracket, and the bracket has a motor that can drive the unloading cam (7) to rotate.

8. The bidirectional cam mechanism for tube forming according to claim 7, characterized in that: The unloading cam (7) can be displaced and adjusted on the bracket to change the position of the unloading cam (7).

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