Ejection positioning mechanism

Abstract

The utility model discloses an ejection positioning mechanism which comprises a support, a positioning rod and a clamping block. A pushing hole is formed in the support, and the positioning rod is in sliding fit with the pushing hole; a clamping groove is formed in the positioning rod, and two outer supporting pieces are oppositely arranged on the clamping block. The clamping block can move into the clamping groove, the two outer supporting pieces elastically abut against the inner walls of the two sides of the clamping groove so that the clamping groove can be opened, and the positioning rod is clamped in the pushing hole after the clamping groove is opened. An extrusion piece is further arranged in the clamping block and can be extruded between the two outer supporting sheets; the extrusion piece comprises a screw rod, and a screw hole matched with the screw rod is formed in the clamping block; an extrusion column is arranged at the front end of the screw rod, and the extrusion column can be extruded between the two outer supporting sheets by rotating the screw rod in the screw hole. The clamping block is connected with a handle, and the clamping block can be driven to be turned into the clamping groove by holding the handle. The end, away from the extrusion column, of the screw is connected with the handle, and the screw can be driven to rotate in the screw hole by rotating the handle. The positioning device has a good clamping effect on the positioning rod, and the phenomenon of inaccurate positioning is not easy to occur.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning fixtures, in particular to a push-up positioning mechanism. Background Art

[0002] The frame of an electric vehicle is welded from many parts, so a large number of welding fixtures are needed in the production and manufacturing process of the frame of an electric vehicle. Among the welding fixtures, the following are commonly used Figure 1 The push-up positioning mechanism shown in the figure is used to position the component. There is a slidable positioning rod on the support. The positioning rod is pushed forward to make it against the component to be positioned. Then, the slot on the positioning rod can be opened by flipping the handle to make the positioning rod stuck in the support, thereby limiting the position of the component. However, after long-term use, the clamping effect of the flip handle on the positioning rod will weaken, which is easy to cause inaccurate positioning. Summary of the invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the utility model provides a push-up positioning mechanism, which has a good clamping effect on the positioning rod and is not prone to inaccurate positioning.

[0004] Technical solution: To achieve the above-mentioned purpose, the utility model provides a push-up positioning mechanism, including a support, a positioning rod and a clamping block; a push hole is provided on the support, and the positioning rod is slidably matched with the push hole; a clamping slot is provided on the positioning rod, and two outer supporting plates are relatively arranged on the clamping block; the clamping block can be moved into the clamping slot, and the two outer supporting plates are elastically abutted against the inner walls on both sides of the clamping slot to open the clamping slot, and the positioning rod is clamped in the push hole after the clamping slot is opened; an extrusion piece is also provided in the clamping block, and the extrusion piece can be squeezed between the two outer supporting plates.

[0005] Furthermore, the extrusion member includes a screw rod, and a screw hole matching the screw rod is formed on the clamping block; the front end of the screw rod is an extrusion column, and the rotation of the screw rod in the screw hole can squeeze the extrusion column into between the two outer support sheets.

[0006] Furthermore, arc-shaped guide grooves are respectively provided on opposite sides of the two outer support sheets, and the contour shape of the arc-shaped guide grooves is consistent with the contour shape of the extrusion column; when the screw rotates in the screw hole, the extrusion column is squeezed into between the two outer support sheets along the arc-shaped guide groove, and the outer contour of the extrusion column is close to the arc-shaped guide groove.

[0007] Furthermore, the outer support sheet is deformed when it abuts against the inner wall of the slot; the front end of the extrusion column is tapered, and the extrusion column is squeezed into between the two deformed outer support sheets through the tapered front end.

[0008] Furthermore, the card block is connected with a hinged portion, which is hinged in the card slot, and the card block can be movably flipped to enter the card slot.

[0009] Furthermore, a handle is connected to the block, and holding the handle can drive the block to flip; one end of the screw rod away from the extrusion column is connected to the handle, and rotating the handle can drive the screw rod to rotate in the screw hole.

[0010] Furthermore, the support is provided with a slit, the slit is connected to the push hole, and the slit is opened when the positioning rod is clamped in the push hole.

[0011] Beneficial effect: The utility model provides a push-up positioning mechanism. When the two outer support pieces on the clamping block are flipped into the clamping slot of the positioning rod, the clamping slot is opened so that the positioning rod is clamped in the push hole of the support. Then the extrusion piece is squeezed between the two outer support pieces to further open the clamping slot, thereby ensuring that the positioning rod can be more tightly clamped in the push hole of the support, and it is not easy to cause inaccurate positioning due to loose positioning rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Attached Figure 1 It is a schematic diagram of the overall structure of the ejection positioning mechanism;

[0013] Attached Figure 2 Schematic diagram of the structure of the extrusion part. DETAILED DESCRIPTION

[0014] The utility model is further described below in conjunction with the accompanying drawings.

[0015] As attached Figures 1 to 2 The push-up positioning mechanism comprises a support 1, a positioning rod 2 and a clamping block 3. The support 1 is provided with a push hole 4, the positioning rod 2 is slidably matched with the push hole 4, and the positioning rod 2 can slide back and forth in the push hole 4.

[0016] The positioning rod 2 is provided with a slot 5, and the block 3 is provided with two outer supporting pieces 6 opposite to each other. The block 3 can move into the slot 5, and the two outer supporting pieces 6 elastically abut against the inner walls on both sides of the slot 5 to open the slot 5, and the positioning rod 2 is clamped in the push hole 4 after the slot 5 is opened. In actual application, the positioning rod 2 slides forward in the push hole 4, and the front end of the positioning rod 2 abuts against the component to be positioned, and then the block 3 moves into the slot 5, and the two outer supporting pieces 6 open the slot 5 in the positioning rod 2, so that the positioning rod 2 is clamped in the push hole 4, thereby fixing the position of the positioning rod 2. In order to further improve the clamping degree of the positioning rod 2 in the push hole 4, an extrusion piece 7 is also provided in the block 3, and the extrusion piece 7 can be squeezed between the two outer supporting pieces 6 to further open the slot 5.

[0017] As attached Figure 2As shown in , the extrusion member 7 includes a screw rod 8, and a screw hole 9 matching with the screw rod 8 is provided on the block 3, and one end of the screw hole 9 extends between the two outer support sheets 6. The end of the screw rod 8 close to the outer support sheet 6 is the front end, and the front end of the screw rod 8 is an extrusion column 10. The screw rod 8 can be rotated in the screw hole 9 to squeeze the extrusion column 10 between the two outer support sheets 6. The outer support sheet 6 has a certain elasticity. When the outer support sheet 6 abuts against the inner wall of the card slot 5, the two outer support sheets 6 are deformed close to each other, and when the extrusion column 10 is squeezed between the two outer support sheets 6, the two outer support sheets 6 can be squeezed apart, thereby further opening the card slot 5.

[0018] The opposite sides of the two outer support sheets 6 are respectively provided with arc-shaped guide grooves, and the contour shape of the arc-shaped guide grooves is consistent with the contour shape of the extrusion column 10. When the screw 8 rotates in the screw hole 9, the extrusion column 10 is squeezed into between the two outer support sheets 6 along the arc-shaped guide groove, and the outer contour of the extrusion column 10 is close to the arc-shaped guide groove. Due to the existence of the arc-shaped guide groove, the contact area between the extrusion column 10 and the outer support sheet 6 is larger, so the extrusion column 10 can better squeeze the two outer support sheets 6 apart.

[0019] The outer support sheet 6 is deformed when it contacts the inner wall of the slot 5. The front end of the extrusion column 10 is tapered, and the extrusion column 10 is squeezed into the space between the two deformed outer support sheets 6 through the tapered front end, making it easier for the extrusion column 10 to squeeze into the space between the two deformed outer support sheets 6.

[0020] The card block 3 is connected with a hinged portion 12 , which is hinged in the card slot 5 , so that the card block 3 can be movably flipped to enter the card slot 5 .

[0021] The block 3 is connected with a handle 13, and holding the handle 13 can drive the block 3 to flip, which is convenient for operation. The end of the screw rod 8 away from the extrusion column 10 is connected to the handle 13, and rotating the handle 13 can drive the screw rod 8 to rotate in the screw hole 9. The handle 13 has rough textures to facilitate rotating the handle 13.

[0022] The support 1 is provided with a slit 11, which is connected to the push hole 4. The slit 11 is stretched open when the positioning rod 2 is clamped in the push hole 4. When the positioning rod 2 is in the push hole 4, the slit 11 tends to shrink, so that the push hole 4 can clamp the positioning rod 2.

[0023] As attached Figure 2 In one embodiment shown in , the outer diameter of the squeezing column 10 is consistent with the outer diameter of the screw rod 8, and the end of the screw rod 8 away from the squeezing column 10 is detachably connected to the handle 13. Since the squeezing column 10 cannot pass through the screw hole 9, the squeezing column 10 is always located between the two outer support sheets 6. After the handle 13 is rotated, the squeezing column 10 will further penetrate between the two outer support sheets 6, and the screw rod 8 will gradually enter between the two outer support sheets 6, thereby squeezing the two outer support sheets 6 apart.

[0024] During operation, the positioning rod 2 is pushed forward, and the positioning rod 2 slides forward in the push hole 4, so that the front end of the positioning rod 2 abuts against the component to be positioned, and then the handle 13 is flipped upward to the adjacent Figure 1 In the state shown in , at this time, the two supporting pieces are squeezed into the slots 5, squeezing open the slots 5, so that the positioning rod 2 is clamped in the push hole 4, and then the handle 13 is rotated, and the handle 13 drives the extrusion member 7 to rotate through the screw 8, and the extrusion member 7 penetrates into between the two outer supporting pieces 6, squeezing open the two outer supporting pieces 6, and the slots 5 in the positioning rod 2 are further opened, thereby ensuring that the positioning rod 2 can be more tightly clamped in the push hole 4 of the support 1, and it is not easy to cause inaccurate positioning due to the loosening of the positioning rod 2.

[0025] 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 push-up positioning mechanism, characterized in that: The invention comprises a support (1), a positioning rod (2) and a clamping block (3); the support (1) is provided with a push hole (4), and the positioning rod (2) is slidably matched with the push hole (4); the positioning rod (2) is provided with a clamping groove (5), and the clamping block (3) is provided with two outer supporting plates (6) opposite to each other; the clamping block (3) can move into the clamping groove (5), and the two outer supporting plates (6) are elastically pressed against the inner walls of the two sides of the clamping groove (5) to open the clamping groove (5), and the positioning rod (2) is clamped in the push hole (4) after the clamping groove (5) is opened; an extrusion piece (7) is also provided in the clamping block (3), and the extrusion piece (7) can be squeezed between the two outer supporting plates (6).

2. The push-up positioning mechanism according to claim 1, characterized in that: The extrusion member (7) comprises a screw rod (8), and a screw hole (9) matching with the screw rod (8) is provided on the clamping block (3); the front end of the screw rod (8) is an extrusion column (10), and the screw rod (8) can be rotated in the screw hole (9) to squeeze the extrusion column (10) between the two outer support sheets (6).

3. The push-up positioning mechanism according to claim 2, characterized in that: The two outer support sheets (6) are respectively provided with arc-shaped guide grooves on opposite sides, and the contour shape of the arc-shaped guide grooves is consistent with the contour shape of the extrusion column (10); when the screw rod (8) rotates in the screw hole (9), the extrusion column (10) is squeezed into between the two outer support sheets (6) along the arc-shaped guide groove, and the outer contour of the extrusion column (10) is closely attached to the arc-shaped guide groove.

4. The push-up positioning mechanism according to claim 2, characterized in that: The outer support sheet (6) is deformed when it contacts the inner wall of the slot (5); the front end of the extrusion column (10) is conical, and the extrusion column (10) is squeezed into between the two deformed outer support sheets (6) through the conical front end.

5. The push-up positioning mechanism according to claim 2, characterized in that: The card block (3) is connected to a hinged portion (12), which is hinged in the card slot (5), so that the card block (3) can be movably flipped to enter the card slot (5).

6. The push-up positioning mechanism according to claim 5, characterized in that: The block (3) is connected to a handle (13), and the block (3) can be turned over by holding the handle (13); the end of the screw rod (8) away from the extrusion column (10) is connected to the handle (13), and rotating the handle (13) can drive the screw rod (8) to rotate in the screw hole (9).

7. The push-up positioning mechanism according to claim 1, characterized in that: The support (1) is provided with a slit (11), the slit (11) is connected to the push hole (4), and the slit (11) is opened when the positioning rod (2) is clamped in the push hole (4).

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