Clamping and positioning mechanism for frame head tube

Abstract

The utility model discloses a frame head tube clamping and positioning mechanism which comprises a base, a lever support and a lower clamping block are arranged on the base, a movable lever is arranged on the lever support, an upper clamping block is arranged at one end of the movable lever, and the other end of the movable lever is connected with a driving mechanism. A limiting support is arranged between the lever support and the lower clamping block, and when the movable lever is driven by the driving mechanism to overturn to press the limiting support, the upper clamping block and the lower clamping block are opposite to each other so as to clamp the head tube in a matched manner; the limiting support comprises an upper bearing part and a lower supporting part, the lower supporting part is fixedly installed on the base, the upper bearing part is in sliding fit with the lower supporting part, and an elastic piece is clamped between the upper bearing part and the lower supporting part; in the process that the movable lever presses the upper bearing part to the lower supporting part, the elastic piece is compressed and deformed. According to the utility model, the head tube can be conveniently positioned and clamped.

Description

Technical Field

[0001] The utility model relates to a clamping and positioning mechanism, in particular to a clamping and positioning mechanism for a head pipe of a frame. Background Art

[0002] There are a large number of pipes in the frame of an electric vehicle, such as the head pipe. During the processing and production of the frame of an electric vehicle, the head pipe needs to be welded together with other parts of the frame. For this purpose, a suitable clamping mechanism is required to position and clamp the head pipe so as to perform welding operations on the frame. Summary of the invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the utility model provides a clamping and positioning mechanism for a head pipe of a frame, which facilitates the positioning and clamping of the head pipe.

[0004] Technical solution: To achieve the above-mentioned purpose, the clamping and positioning mechanism of the frame head tube of the utility model includes a base, a lever support and a lower clamping block are arranged on the base, a movable lever is arranged on the lever support, an upper clamping block is arranged at one end of the movable lever, and the other end of the movable lever is connected to the driving mechanism; a limited support is arranged between the lever support and the lower clamping block, and when the movable lever is driven by the driving mechanism to flip and press on the limited support, the upper clamping block is opposite to the lower clamping block to cooperate in clamping the head tube.

[0005] Furthermore, the limit support includes an upper supporting part and a lower supporting part, the lower supporting part is fixedly mounted on the base, the upper supporting part and the lower supporting part are slidingly matched, and an elastic part is clamped between the upper supporting part and the lower supporting part; when the movable lever presses the upper supporting part toward the lower supporting part, the elastic part is compressed and deformed.

[0006] Furthermore, a sliding guide rod is arranged at the top end of the lower support part, a sliding guide hole is opened at the bottom end of the upper receiving part, and the sliding guide rod is slidably inserted into the sliding guide hole, so that the upper receiving part and the lower support part are slidably matched.

[0007] Furthermore, the upper receiving portion is provided with a receiving groove, the shape of which is adapted to the cross-sectional shape of the movable lever; when the movable lever is pressed onto the upper receiving portion, it is correspondingly inserted into the receiving groove.

[0008] Furthermore, a locking hole is provided on the movable lever, an upper positioning hole is provided on the upper supporting part, and a lower positioning hole is provided on the lower supporting part; when the movable lever is inserted into the supporting groove, the locking hole corresponds to the upper positioning hole; and a locking member is also included, the locking member has two pins, one of which is inserted into the upper positioning hole and the locking hole, and when the other pin is inserted into the lower positioning hole, the upper supporting part and the lower supporting part fit each other.

[0009] Furthermore, a receiving groove is provided on the lower supporting portion, and the receiving groove is opposite to the upper receiving portion. When the lower supporting portion and the upper receiving portion are in contact with each other, the elastic member is correspondingly retracted into the receiving groove.

[0010] Furthermore, the driving mechanism is a telescopic cylinder, which is hingedly mounted on a lever support, and an output end of the telescopic cylinder is hingedly connected to one end of the movable lever.

[0011] Beneficial effects: The clamping and positioning mechanism of the frame head tube of the utility model has the following beneficial effects:

[0012] 1) A lower clamping block is provided on the base, and an upper clamping block is provided on the movable lever. The upper clamping block can rotate with the movable lever to be opposite to the lower clamping block, so that the upper clamping block and the lower clamping block cooperate to clamp the head pipe;

[0013] 2) The limit support can limit the movable lever, and the limit support is composed of an upper supporting part, a lower supporting part and an elastic part therebetween. When the movable lever flips over to press on the movable lever, the elastic part can play a buffering role, so that the movable lever and the upper supporting part are not easily damaged by collision, thereby affecting the positioning accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Attached Figure 1 It is a schematic diagram of the overall structure of the head pipe clamping and positioning mechanism of the utility model;

[0015] Attached Figure 2 It is a connection diagram of the upper receiving part and the lower supporting part. DETAILED DESCRIPTION

[0016] The utility model is further described below in conjunction with the accompanying drawings.

[0017] As attached Figures 1 to 2 The clamping and positioning mechanism of the head tube of the frame comprises a base 1, on which a lever support 2 and a lower clamping block 3 are arranged, and a movable lever 4 is arranged on the lever support 2, and the fulcrum of the movable lever 4 is located on the lever support 2, so that the movable lever 4 support 2 can be movably flipped. An upper clamping block 5 is arranged at one end of the movable lever 4, and the other end of the movable lever 4 is connected to a driving mechanism. A limited support 6 is arranged between the lever support 2 and the lower clamping block 3, and when the movable lever 4 is driven by the driving mechanism to flip and press on the limited support 6, the upper clamping block 5 is opposite to the lower clamping block 3 to cooperate in clamping the head tube. In one embodiment, the driving mechanism is a telescopic cylinder 18, which is hingedly mounted on the lever support 2, and the output end of the telescopic cylinder 18 is hingedly connected to one end of the movable lever 4. When the telescopic cylinder 18 is extended, it pushes the movable lever 4 to flip, so that the end of the movable lever 4 with the upper clamping block 5 flips downward to press on the limited support 6.

[0018] As attached Figure 1As shown in , when the movable lever 4 is pressed on the limiting support 6, the upper clamping block 5 and the lower clamping block 3 can be clamped at the upper and lower ends of the head pipe respectively to achieve positioning and clamping of the head pipe.

[0019] The position limiting support 6 includes an upper receiving portion 7 and a lower supporting portion 8. The lower supporting portion 8 is fixedly mounted on the base 1, and the upper receiving portion 7 and the lower supporting portion 8 are vertically slidably matched. Figure 2 As shown in the figure, a sliding guide rod 10 is provided at the top of the lower support part 8, and a sliding guide hole is provided at the bottom of the upper receiving part 7. The sliding guide rod 10 is slidably inserted into the sliding guide hole, so that the upper receiving part 7 and the lower supporting part 8 can slide and cooperate vertically. An elastic member 9 is sandwiched between the upper receiving part 7 and the lower supporting part 8. When the movable lever 4 presses the upper receiving part 7 toward the lower supporting part 8, the elastic member 9 is compressed and deformed. The elastic member 9 can play a buffering role, so that the movable lever 4 and the upper receiving part 7 are not easily damaged by collision.

[0020] The upper receiving portion 7 is provided with a receiving groove 11, and the shape of the receiving groove 11 is adapted to the cross-sectional shape of the movable lever 4. When the movable lever 4 is pressed on the upper receiving portion 7, it is correspondingly inserted into the receiving groove 11. The receiving groove 11 can more accurately position the movable lever 4, and the movable lever 4 will not shake left and right after being inserted into the receiving groove 11, so that the upper clamping block 5 and the lower clamping block 3 can clamp and position the head pipe more accurately.

[0021] The movable lever 4 is provided with a locking hole 12, the upper receiving portion 7 is provided with an upper positioning hole 13, and the lower supporting portion 8 is provided with a lower positioning hole 14. The locking hole 12, the upper positioning hole 13 and the lower positioning hole 14 are all through holes of the transverse tube. When the movable lever 4 is inserted into the receiving groove 11, the locking hole 12 corresponds to the upper positioning hole 13. The locking member 15 is also provided with two latches 16. Figure 2 As shown in , the two latches 16 on the locking member 15 are fixedly arranged on the connecting plate, one of the latches 16 on the locking member 15 is inserted into the upper positioning hole 13 and the locking hole 12, and the other latch 16 is inserted into the lower positioning hole 14, at which time the upper receiving portion 7 and the lower supporting portion 8 fit each other. The locking member 15 has two functions, one is to lock the movable lever 4 in the receiving groove 11, and the other is to lock the upper receiving portion 7 and the lower supporting portion 8 together, so that the upper receiving portion 7 and the lower supporting portion 8 keep fitting together and improve the positioning accuracy. A receiving groove 17 is provided on the lower supporting portion 8, and the receiving groove 17 is opposite to the upper receiving portion 7, and the elastic member 9 is correspondingly arranged in the receiving groove 17. When the lower supporting portion 8 and the upper receiving portion 7 fit each other, the elastic member 9 is correspondingly retracted into the receiving groove 17.

[0022] The working method of the utility model is explained as follows: when the head tube needs to be clamped, the lower end of the head tube is sleeved on the lower clamping block 3, and then the telescopic cylinder 18 is started, the cylinder extends, and the end of the movable lever 4 with the upper clamping block 5 is driven to flip downward, until the movable lever 4 is inserted into the receiving groove 11, and the upper receiving portion 7 and the lower supporting portion 8 are mutually fitted, and the elastic member 9 is in a compressed state. At this time, the upper clamping block 5 is also pressed against the upper end of the head tube; then the two pins 16 on the locking member 15 are respectively inserted into the upper positioning hole 13 and the lower positioning hole 14, locking the position of the movable lever 4, so that the upper clamping block 5 and the lower clamping block 3 maintain the clamping position of the head tube. Of course, the utility model is not limited to clamping the head tube, but can also be used for positioning and clamping other straight pipe fittings.

[0023] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A clamping and positioning mechanism for a frame head tube, characterized in that: The invention comprises a base (1), wherein a lever support (2) and a lower clamping block (3) are arranged on the base (1), a movable lever (4) is arranged on the lever support (2), an upper clamping block (5) is arranged at one end of the movable lever (4), and the other end of the movable lever (4) is connected to a driving mechanism; A limit support (6) is arranged between the lever support (2) and the lower clamping block (3); when the movable lever (4) is driven by the driving mechanism to flip and press on the limit support (6), the upper clamping block (5) and the lower clamping block (3) are opposite to each other to cooperate in clamping the head pipe.

2. The clamping and positioning mechanism for the frame head tube according to claim 1, characterized in that: The position limiting support (6) comprises an upper receiving portion (7) and a lower supporting portion (8); the lower supporting portion (8) is fixedly mounted on the base (1); the upper receiving portion (7) and the lower supporting portion (8) are slidably matched, and an elastic member (9) is clamped between the upper receiving portion (7) and the lower supporting portion (8); when the movable lever (4) presses the upper receiving portion (7) toward the lower supporting portion (8), the elastic member (9) is compressed and deformed.

3. The clamping and positioning mechanism for the frame head tube according to claim 2, characterized in that: The top end of the lower support part (8) is provided with a sliding guide rod (10), and the bottom end of the upper receiving part (7) is provided with a sliding guide hole. The sliding guide rod (10) is slidably inserted into the sliding guide hole, so that the upper receiving part (7) and the lower support part (8) are slidably matched.

4. The clamping and positioning mechanism for the frame head tube according to claim 2, characterized in that: The upper receiving portion (7) is provided with a receiving groove (11), the shape of which is adapted to the cross-sectional shape of the movable lever (4); when the movable lever (4) is pressed onto the upper receiving portion (7), it is correspondingly inserted into the receiving groove (11).

5. The clamping and positioning mechanism for the frame head tube according to claim 4, characterized in that: The movable lever (4) is provided with a locking hole (12), the upper receiving portion (7) is provided with an upper positioning hole (13), and the lower supporting portion (8) is provided with a lower positioning hole (14); when the movable lever (4) is inserted into the receiving groove (11), the locking hole (12) corresponds to the upper positioning hole (13); The locking member (15) further comprises two latches (16). When one of the latches (16) is inserted into the upper positioning hole (13) and the locking hole (12) and the other latch (16) is inserted into the lower positioning hole (14), the upper receiving portion (7) and the lower supporting portion (8) are fitted to each other.

6. The clamping and positioning mechanism for the frame head tube according to claim 5, characterized in that: The lower support portion (8) is provided with a receiving groove (17), the receiving groove (17) is opposite to the upper receiving portion (7), and when the lower support portion (8) and the upper receiving portion (7) are in contact with each other, the elastic member (9) is correspondingly retracted into the receiving groove (17).

7. The clamping and positioning mechanism for the frame head tube according to claim 1, characterized in that: The driving mechanism is a telescopic cylinder (18), which is hingedly mounted on a lever support (2), and an output end of the telescopic cylinder (18) is hingedly connected to one end of a movable lever (4).

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